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HomeMy WebLinkAbout68-02_4_Redactedc!5: D E NORTH CAROLINA Department of Environmental Quality /NiocS C/eX 5 9 OF REFER TO PLANTING SCHEDULE FOR SEEDING INSTRUCTIONS. BERM CROSS SECTION NOT TO SCALE AUBURN M. DAVIS ---------------- PLACE MATERIAL FROM EXCAVATION ON DOWNHILL SIDE OF FLOW. USE ADDITIONAL F 2' MIN FILL TO ACHIEVE SPECIFIED HEIGHT AND WHDT. I N� III- SEED AND MULCH DIVERSION CHANNEL AND DIKE II I IMMEDIATELY AFTER CONSTRUCTION. CHOOSE tIES APPROPRIATE SEEDING MIXTURE FROM THE ..... SEEDING SCHEDULE. TEMPORARY DIVERSION DITCH WITH SCHEDULE _x DAVID& ]UANITA MGCAULEY PROPOSED CREEK RELOCATION N. C. 54low wMnlm rwTooAAMHznKAur w RIP -RP -RAP I ERNEST A. & � 18" THICK JOANNE CARL BELL MAPPING COMPANY i DATE OF PHOTOGRAPHY PAULINE I JAN. 14, 1997 SWANN wFamvrt NUT mBnols or me wHR HAH re.°' 9+00 cacsm alnsoc Irrs r _ _ cormra Nlo RE oo roar MEET FILTER BLANKET "r, Occul 1 00 Hla1 aS N TTI ED ARDS r+¢ARMIXYMMIT SECTION 1 NORirana anus -STATE VLWE 00-ORDINATES PIPE OUTLET STABILIZATION STRUCTURE I `ERIVAL axiviit.GEOVEM;mT sale NPOREAM NOTE MQIpNS CF TE uW NPF MN CoNaw ouaw THE W15 M CDCD Dowar MEET KIN�MREFaiE ALFRED C. PERRY EXISTING WELL / O 20'BUFFER O EXISTING WELL AMERICAN STONE �F PERMIT BOUNDARY a -- INDEX CONTOUR--yep�� PIT LIMIT INTERMEDIATE CONTOUR © FUTURE PIT LIMIT J BODY OF WATER BUFFER BUILDING E� BERM ( FENCE —11 1, --- DIRT ROADS TREE UNE PAVED ROADS PIPE >— — HORIZONTAL CONTROL POINT pN POLE VERTICAL CONTROL PaNT 0 SPOT ELEVATION +w• SEDIMENT BASIN p DIVERSION DITCH —» —H> — SEDIMENT BASIN DIVERSION DITCH O FILE NAME, CHAP-HILL-MM-1-98.DWG 01/30/97 1 1997 ARR INFO. 02/25/9B PROPOSED CREEK ROLE FjiiEIGIe1&3eEI*EPA�7c�1R� :d7F77 11A11 :F9 I Surface water measures are to be installed according to plan. ) Areas to be seeded shall be ripped and spread w10 topsoil (if ecessary), 3" deep. Told seedbed Prepared shall be 4"-6" deep. ) Loose rocks, roots, and other obstructions shall be removed am the surface so as not to Interfere with the establishment and aintenmce of vegetation. Surface for final seedbed preparation. t final Studies shown, shall be renewably smooth and uniform. ) If 1g soil test is taken, provide fertilizer and lime according to ending schedule. In addition provide 15 Ib./1000 sq. PL of super hospbate. ) If sail test Is taken, provide fertilizer and Ime according to the all test report. son testing is recommended. ) Lime and fertilizer shall be applied uniformly and masts with is soil during seedbed preparation, WATE all seeded areas and keep mdsl until new Wass is stablisli 1. Obtain mining permit 2 Clew only as necessary to install proposed berms, slit fences, diversion ditches, and sediment basin associated with the addition to the existing access road. 3. Call the Raleigh Regional Office. Land Quality Section, for on -site inspection. 11 approved, begin clearing. 4. The future pit area will be cleared in small parcels, approximotwy 2 acres each. Before clearing of these areas begin, provide diversion berm if required to divert surface drainage to the existing pit. In areas where the runoff will naturally drain into the pit, no additional measures are required. 5. Maintain devices as needed. 6. The berms are to be seeded according to the seeding schedule upon their cornpletion. After the berms hove been satisfactorily seeded. the temporary diversion ditches, silt fence and sediment pit ore to be removed. Special Use Permit as Outlined by Orange County • Two (2) observation wells. Must be to o depth that is at least 25 feet below the pit door. • Measuredweekly at mean sea level. • Results sent by last day of January each iwar. Site plan revised 6/9/81 shall be part of permit. Amerman Stone owns: 18 acres Philips and Alice Durham own: 118 acre 136 acres • No extraction within 300' of a residence or public land. • If a residence is built within 300'. a fence will be constructed in their area. • Stockpiles most be at least 200' hom all streams. • Operating Hours 7 a.m. to 7 p.m. Monday through Saturday. • 50' separation between pit and Phile Creek. • Must notify Orange County one year prior to shut down. Boundary noise levels not to exceed 7 a.m. to 7 p.m. 6BdBA. such allies cannot exceed 40' 7 am to 7 om. 58 dRA. SCALE 1" 200' 0 100 200 400 600 800 Martin Marietta Aggregates�� I RALEIGH, N.C. MINE MAP CHAPEL HILL QUARRY ORANGE COUNTY, N,C, UARRY: CHAPEL HILL QUARRY R BY, DATE, BWG ND JOB, NO A GRANT 1 11-20-96 , f� PROPOSED CREEK RELOCATION IL I ' MP I ITr) 0 a�� a rrr seo W Tn n "�- f+ooI9,7 _ 1 TD14 A-- 2+00 1 �• i / 1 1 \� Fw m i � � - / h UURE PIT LIMI -, » % --- —— - ILI J INN 11 oo'�� Llfi oil w„ 0 s .8+00}� 11 �, xw*_ d a�eo +sa^ \ J4141* \ IIA \\ J Q %. a r 399.9 f ' '38.6 Y+w":' "t91- 4 4' usr L 399.5 44L0 t _ _... _ Ltd .r PIlT 293.8 99.4 �'S°}i �5 SCALE 1" = 100' LEGEND: PROPERTY LINE BERM TREE LINE �� 0 50 100 zoo 300 400 INTERMEDIATE CONTOUR Martin Marietta Aggregates�� PIT LIMIT PIPE — RALEIGH, N.C. HORIZONTAL CONTROL POINT p" BODY OF WATER POLE .r SEDIMENT & EROSION CONTROL FUTURE PIT LIMIT I VERTICAL CONTROL POINT 0v (— — — — — — SEDIMENT BASIN p BUILDING u SPOT ELEVATION +486.6 PROPOSED BERM BUFFER - QUARRY: CHAPEL HILL QUARRY FENCE ow By, ors: owc.w INDEX CONTOUR 3500�� DIVERSION DITCH —"—"—"—"— ate* v�roe rx. er: wu sm xa: P n � E S YNIIi 1' IW' i4ill Cvilll tiG. " voi•th Caroiina Department at Environment and Naturai Resources Michael F. Easley, Governor William G. Ross Jr- Secretary Charles H. Gardner, P.G., P.E. Director and State Geologist June 18, 2001 Mr. Steve Whitt, P.E. Manager, Environmental Services Martin Marietta Aggregates P.O. Box 30013 Raleigh, North Carolina 27622 RE: Special Use Permit Mining Permit No. 68-02 Chapel Hill Quarry Orange County Dear Mr. Whitt: ern NCDENK Division of Land Resources Thank you for your letter dated May 23, 2001, received by this office on June 7, 2001, regarding the Special Use Permit recently issued by the Orange County Board of County Commissioners for the above referenced site. In your letter, you requested that Mining Permit No. 68-02 be modified to incorporate some of the conditions of the Special Use Permit. Please be advised that the Department cannot incorporate and enforce local government Special Use Permit conditions in a State -issued Mining Permit. As G.S. 74-65 of the Mining Act of 1971 states, "No provision of this Article shall be construed to supercede or otherwise affect or prevent the enforcement of any zoning regulation or ordinance duty adopted by an incorporated city or county or by any agency or department of the State of North Carolina, except insofar as a provision of said regulation or ordinance is in direct conflict with this Article." As the Special Use Permit conditions listed in your May 23, 2001 letter are the same or more restrictive than the conditions outlined in Mining Permit No. 68-02, this office does not feel there is a conflict with the Mining Act. Therefore, it will be the local government's responsibility to enforce the conditions of the Special Use Permit, not the Department's through the mining permit. Land Quality Section (.919) 733-457.1 Fm (919) 733-2376 Geological Survey Section;919) 733-2423 Fax (911)) 733-0900 161'_ Ntaii Servicc Center, Raleigh, North Carolina 27099-1612 IDivision of Land Resources 1919) 733-3333 F;ix: (919) 715-3301 :\*tiia7l:.\LUPPt)kt"kf�t1T�'.-\FE'iit�t.\t'iVI:.WMGVFNEPI.Uyfit—=n^s.;tE[ e�_:_i;l? 141,'[:.POSTO)NM;41--iti':\k'!ift Page 2 Again, thank you for bringing this matter to our attention. We will place your May 23, 2001 letter in our mine files for future reference. CHG/td 68-02. specialuse.chg.wpd cc: Mr. Francis M. Nevils, Jr" P.E. Mr. Tracy Davis, P.E. Mr. Jim Simons, P.E., P.G. Mr. John Holley, P.E. Mr, Chris Hite Ms. Judy Wehner Sincerely, Gas H. rd �G p.� Charles H. Gardner, G., P.E. G�zajrt dtc—vd 'B`X' .w.Ui )_how+.-p• . c.E �/w.l�-`d.-`- G�t.0 r!'—"— North Caroiiiia Department of Envirorunent and Natural resources Michael F. Easley, Governor William G. Ross -Jr., Secretary Charles H. Gardner, P.G., P.E. Director and State Geologist: Mr. Steve Whitt, P.E. Manager, Environmental Services Martin Marietta Aggregates P"O. Box 30013 Raleigh, North Carolina 27622 RE: Special Use Permit Mining Permit No. 68-02 Chapel Hill Quarry Orange County Dear Mr. Whitt: June 18, 2001 boomt� • NCDENK Division of Land Resources r JUN 18 `01 OW-LANURES. Thank you for your letter dated May 23, 2001, received by this office on June 7, 2001, regarding the Special Use Permit recently issued by the Orange County Board of County Commissioners for the above referenced site. In your letter, you requested that Mining Permit No. 68-02 be modified to incorporate some of the conditions of the Special Use Permit. Please be advised that the Department cannot incorporate and enforce local government Special Use Permit conditions in a State -issued Mining Permit. As G.S. 74-65 of the Mining Act of 1971 states, "No provision of this Article shall be construed to supercede or otherwise affect or prevent the enforcement of any zoning regulation or ordinance duly adopted by an incorporated city or county or by any agency or department of the State of North Carolina, except insofar as a provision of said regulation or ordinance is in direct conflict with this Article." As the Special Use Permit conditions listed in your May 23, 2001 letter are the same or more restrictive than the conditions outlined in Mining Permit No. 68-02, this office does not feel there is a conflict with the Mining Act. Therefore, it will be the local government's responsibility to enforce the conditions of the Special Use Permit, not the Department's through the mining permit. Land Quality Section (919) 733-4574 Fax (919"1 733-'_3 7h Geological Survey Section (919) 733-2423 Fax (919) 733-0900 1612 Nlail Service Center, Raleigh, North Carolina 27699-1612 Division ot'Land Resources (919) 733-3833 Fax: (919) ?15 3801 :\VEa)I;,11,f3PPf)It"ri�Vl'r:•:\�r-Ift�l,\ri�i_.1CiiG�ii:Vfl'[,�)YG:Z-;�i".S,;t�C"•"i_:_E_C)• Ili.'„i'�)J'rC!)XSi;�lflZi�:\I'(:H Page 2 Again, thank you for bringing this matter to our attention. We will place your May 23, 2001 letter in our mine files for future reference. Sincerely, t�,i�--G- rf Charles H. Gardner` G., P.E. CHG/td 68-02. specialu se.chg.wpd cc: Mr. Francis M. Nevils, Jr., RE, Mr. Tracy Davis, P.E. Mr. Jim Simons, P.E., P.G. Mr. John Holley, P.E. Mr. Chris Hite Ms. Judy Wehner ;., Martin Marietta Materials P.O. Box 30013 Raleigh, NC 27622-0013 Telephone: (919) 781-4550 May 23, 2001 Mr. Tracy Davis, PE State Mining Specialist NCDENR Division of Land Resources 1612 Mail Service Center Raleigh, NC 27699-1612 Certified Mail Subject Special Use permit — American Stone Company Chapel Hill Quarry Mine Permit 69-02 Dear Mr. Davis: xECEWEn JUN - 7 mi sx: The Orange County Board of County Commissioners has voted to approve a Special Use Permit for the American Stone Company — Chapel Hill Quarry located in Orange County. As part of this approval, the board has proposed 51 conditions related to the operation of the quarry. American Stone Company is required to implement and satisfy these 51 conditions in order to maintain compliance with the Special Use Permit. Condition number 22 reads as follows: " American Stone Company shall request that the following conditions also be made conditions of its amended mining permit: (a) American Stone Company shall use the most current, generally accepted blasting techniques available and will inform the County Manager, or designee, before changing blasting techniques. (b) Amercian Stone Company shall adhere to the following limits to be measured by seismograph at the nearest property line of property under control of American Stone Company during the mining process; (i) Air blast limit of 125 decibels. (ii) Maximum peak particle velocity of 0.6 inches per second, provided that American Stone Company will strive for a maximum peak particle velocity limit of 0.5 inches per second. (c) American Stone Company shall limit its continuous noise operations (plant processing including the jaw crusher) at the boundary of the property encumbered by the original special use permit and at the boundary of the property added to this modified special use permit to 60 decibels." P,A, ,, /�,,� May 23, 2001 Page 2 By way of this notification, we are requesting that you make the above referenced conditions part of our Mining Permit. Since this is a unique situation, we are not exactly sure of the process that needs to be followed to accomplish this request. Your office may require an official application or just add this request to the file. Please let me know how you want to handle this unusual request. Please get in touch with this office if you have any questions or need any additional information on this matter. Sincerely, (�IZL W. - Steve Whitt, P.E. Manager, Environmental Services CC: Dean Hardy Paxton Badham � i�n-t.,a,,,r�� ram„--t c o-�-� �.v�•�. [Fwi: heralds n.coin Oranbe approves quarry expansion] . 0S , Subject: [Fwd: beraldsun.com: Orange approves quarry expansion] LL Date: Thu, 05 Apr 2001 1.924:43 -0400 From: Charles'Gardner <Charles.Gardner@nemail.net> Organization: Division of Land Resources To: Moll Nevils <MellNevils@ncnlail.net>, "Jim.Simons" <Jim.Simons@ncmail.net>, Tracy Davis Q'mcy.Davis@nemail.net>, John Holley <John.Holley@ncmail.net>, Judy Wehner <Judy.Wehnu@ncmail.net>, Chris Hite <Chris.Hile@ncmail.nel> tyi -------- original message -------- subject: heraldsun.com: orange approves quarry expansion Date: Wed, 04 Apr 2001 17:12:47 -0400 From: Don Reuter <don.reuter®ncmail.net> Organization: NO DENR To: Charles Gardner <Charles.Gardner®ncmail.net> htto://www.heraldsun.com/orange/10-926DO.htm1 CC /D —_ rta s ce P • 0WICOWaSSiNW61 rano Doors Orange approves quarry expansion By ROB SHAPARD : The Herald -Sun chh a.herald-sun.com Apr 4, 2001:12:08 am ET HILLSBOROUGH -- Capping years of negotiations and often -contentious debate, the Orange County Commissioners on Tuesday approved the expansion of the American Stone quarry on N.C. 54 near Can boro. The board actually approved two steps. The first was a rezoning to allow the quarry expansion, which the board approved 4-1 on a motion by Commissioner Moses Carey and a second by Commissioner Margaret Brown. Commissioner Alice Gordon voted against the rezoning, without stating a specific reason for doing so. The second step was a special -use permit that has roughly 50 conditions attached to it, such as the creation of a no-fault well -repair fund for residents living near the quarry. The board approved the permit 3-2, with Gordon again voting against, and this timejoined by Brown. I CH Jc" I of 4/6/2001 10:10 AM heraldsun.com: Orange approves quarry expansioril Commissioner Barry Jacobs made the motion to approve the permit, and Chairman Steve Halkiotis seconded it. One condition calls for American Stone to pay $87,500 into the well -repair fund initially and another $20,000 a year, for residents living within 3,000 feet of the perimeter, The condition also originally called for the Orange Water and Sewer Authority to pay in another $15,000 a year if the fund ran short. But on Tuesday, Jacobs suggested requiring OWASA, which wants to eventually turn the expanded quarry into a reservoir, to pay the $15,000 a year automatically, regardless of whether the fund was running short. The commissioners would have discretion to use that money for protecting the "health, safety and welfare" of residents, Jacobs suggested. He said that might give the commissioners discretion for helping residents beyond the 3,000-foot line. OWASA board Chairman Peter Gordon said his board;would have concerns about that, arguing that step sounded like the county would be using the money almost like tax revenues. County Manager John Link disputed that point. He said he saw no problem as long as the commissioners stipulated the $15,000 a year was "primarily" for well repairs, although the commissioners could consider other uses in consultation with OWASA. The commissioners also approved a change in conditions suggested by Halkiotis, that the limit on the power of blasts be reduced from 450 pounds of explosives per delay to 325 pounds. Several residents spoke against the quarry expansion, including longtime opponents Erwin Danziger and Elliot Cramer. "You really don't need to do it for OWASA," Danziger said. "The only reason you need to do it is so that American Stone can have a big profit." They have argued that OWASA could get just as big a reservoir, about 3 billion gallons of capacity, if the existing quarry were dug deeper. The Orange County Commissioners have said in the past that they felt the only way residents would get any concessions, such as the well -repair fund, was through a special -use permit with conditions, although none of the commissioners verbalized that argument on Tuesday night. "We feel unheard, and that's an understatement," resident Julie Tucker said. "We have been vocal for years to no avail. "As for the quarry residents, this special -use permit determines the quality of their lives for the next 30 years, and possibly more," Tucker said. The commissioners also told Link to look for another party to sign on to a 2 or3 4I612001 10:16 AM Fxi: hcreldsun.com: Om p approves quarry expansionj conservation easement that will be applied to the property once mining is finished -- an entity such as a nonprofit land tmst, which would be beyond the political considerations that future commissioners or OWASA board members might have. unvaeestate me it. 02001 The Durham IIcriIa Conan.: leans erase:: fAGTGPY pNEtt 9InCE rva S I KV WINDOWS • SIDINO PATIO ROOMS 3 or3 4/612001 10:16 AM n��G�MCn North Carolina Deparment of Environment, Health, and Natural`Resouroes.L 21997 Division of land Resources, Land Quality Sectlon V MINE INSPECTION REPORT By 11'' (PERM1NTTED MINE) t. MINE NAME �n ��P' �'{l) I (.(Q P 2. MINING PERMITS 3. OPERATOR h D d ('n 1 C' Nil 4. COUNTY hfQ 5. ADDRESSP 1 -+ �% 1 �. PERMIT EXPIRATION DATE I '3 7. Person(s) contacted at site ,;74JA. 8. was mine operating at time o�f,J"nspection? 19-Yes ❑No 9. Pictures? ❑ Yes El No' speaed: 10. Date last in�/IL /��ol1, Any mining since last inspection? ©-Yes_ ❑ No 12. Is the mine in compliance with the Operating Conditions of the Permit? © Yes ❑ No It no, explain: 13. Is the mine In compliance with the Reclamation Conditions of the Permit? QYes ❑ No If no, explain: 14. Did any of the above deficiencies result in offsite damage? ❑Yes El No If yes, describe the type and severity of the damage, Al 1 r-4- 15. Corrective measures needed and/or taken: t i 16. Other recommendations and oomments:� i L1l it 17 r llti-IPCk,- ('nr14L111e t nvnni n.nz� n-1[YJntoi.n" .C�rti��lwr �J- rn,t-h�,l tit nr-FFIF 17, Is the Annual Reclamation Report +i- map accurate? I79-Yes` ❑No (Explain) ❑Not Reviewed 18, Follow-up inspection needed? ❑Yes ©-No Proposed date _/_!_ 19. No. of additional 1pages of Inspection ReporlQ. 20. Copy of Report sent to.operator =! ! � �/ �%7 INSPECTED BY:Ir/1.�.(l'l1 (. 0(ii? DATE�[e) Phone No: ( I ) � - L)'7 ; White copy to file Yellow copy to operator Pink copy to Mining Speclalisr wbt Re: American stone Permitted area Subject: Re: American stone permitted area Date: Thu, 27 Apr 2000 15:27:15 -0400 From: Tracy Davis <Tracy.Davis tr ncmai1.net:> Organization: NCDENR - Land Quality Section To: Elliot Cramer <cramer@email.unc.edu> Monday, 5/1, at 1:30 pm is good for me. My office is on the 5th floor of the Archdale Building, which is off Peace and North Salisbury Streets. My office is at the Division of Land Resources' Director's end of the hall ... Room 504N. See you then. Tracy Elliot Cramer wrote: > the afternoon of may .I would be good. would 1:30 be convenient? ............... Tracy E. Davis, P.E. <Tracy.Davis@ncmail.net> Stale Mining Specialist Division of Land Resources/l.and Quality Section NC Department of Envirountent and Natural Resources -..............................................................................................................._� 1 of 1 4/27/2000 4:49 PM kPermd,No?�K ,68 02 IAMERICAN STONECo!CHAPEL HILL QUARRY '"'Countyr,�Re Ion horre `� �� (VerBasm h } Ezplration Det¢'�� ORANG 5 19781-4550PEFEAR 0 4/16/2003 eIq S 3$ KI I, r ';.. „M `�ontact"Persa'h S S teat � ; t HORACE WILLSON - O BOX 30013 09111/1972 : C Stale � Is. Zap 5 Zrp Ext Peimd Revraed ate � RALEIGH C 7622 �yf 04/19/2000 - Commodity Code` Hearin Date s.A p d Date sDateD i s Stalus`' CS > +N <Us/6/0111912 1,Total Acres Permlttad: ,. Bbntlet4A'ere' e -- mount Da d ' a9 Bo tl Type Bond�ARe)ease te 118 00 85 00 r 801 $500 000 0 k Is Last In$p'YIrMNext Ir14p > No �e p tb Date f$ �',No 'OnSp r `lf„.{ �,e ARR Rec d Data 1. z OSr14/1996 100 100#' O1125/19ss SfJ L``ashN V: Lae4NOD „Latitude N Longitude r" OuadiangTe. 35.9288-79.1481 HITE CROSS '� 1'3 ��"LNAC Drst Total Annual'- <t 2 00$ AcRacirTaihngs.-Annual Ac Recl Wastepae=An_ nual �gvRecl Stockp .e-Annual , 0.00 " 0. :+.t 0.0 Ac Rec1 Active Mine -Anna rAc ReclProcessin�Annual ' AC Recl Total Annual 000 000 E OOO,�s`, .Ac t)ist'Tailmgs Cumm AC DistWastepfle-Comm N IN Stockpile-Cu 40 i z 5 Ac DI tProees I g-Cumm �AvDist Active Mme�Cumm c AcArs Iota umm ; 9.20 33 8 P`;� 70.50 ' i Y S` lReg1. lai Off .Comments �',r. ;v".��?E: y' �,,:, � ,, ��RIF s It Is ,kG;.oz Re. America stow permitted num Subject: Re: American stone permitted area Date: Thu, 27 Apr 2000 11:55:34 -0400 From: Tracy Davis <Tmcy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Elliot Cramer <camer@email.unc.edu> CC: Cramer elliot <uemcre@unc.edu>, "Erwin M. Danziger" <emd@ga.unc.edu> Thank you for your message. I will be available to meet with you any time on 5/1 or 5/5... the other days next week I will be looking at mines in the Asheville area or in meetings most of the day. Please let me know which of these dates are best for you and what time you would like to meet. Regarding the upcoming renewal of the permit for this site, there are no provisions in the law or rules for public notification by the company or the Department nor is there a provision for a public hearing. Public notification and public hearings pertain only to new mining permit applications and modification applications that request to add land to the permitted area of an existing permitted operation in which new owners of land will be adjoining the proposed new permit boundary. In light of this and the fact that we have no way to keep up or promisecitizens across the State that we will notify them of every permit action they are interested in (where notice is not required by the Mining Act... it's just not practical with the staff and resources we have in light of the many permits we review, issue, enforce, and address through major controversy/problems), we ask that those concerned call us periodically to check to see if such a request has been made and. is currently under review. Then, they are welcome to come in and review the proposals and provide comments throughout the review process until a decision on the request has been made. I hope this answers the notification portion of your message. I look forward to meeting you. Thanks. Tracy Elliot Crawler wrote: > I would like to thank you for being so generous in taking the time to > respond to our many requests. I would like to apologize for the phone > call from Julie. she was accidentally sent a copy of your letter and we > had no idea that she planned to call you. I would like to take advantage > of your kind offer to visit your office and resolve a few remaining > issues. One thing I am unclear about is whether they have approval for a > pit size greater than 36.6 acres. Please advise me as to what a > convenient time for you would be. > > From my reading of the mining regulations, I believe that American Stone > will have the opportunity to renew their permit in the next year cr so. I > would like to formally request that Erwin and I be notified of any > such request since a public hearing may be in the public interest at that > time. > Elliot M. Cramer > PO 428 > ChapeI Hill, NC 27514 > 919-942-2503 Cramer@UNC.EDU 1 ar2 429/2WO 11:59 AM Rmjj'wd: Amcnvo slant p miuod area) Subject: Re:jFwd: American atone permitted area] Date: Tue, 25 Apr 2000 16:24:13 -0400 From: "Julie Tucker" <jtucker@erg.com> To: <Tracy.Davis@ncmaiLnet> Thank you. So, the pit acreage of 33.8 acres represents the area that has been disturbed for actual extraction activities? On a different note --is there any objection that citizens can raise when a company like this applies for a modification to their permit? Or, not so because the company owns all of the land within which they would request a mod to their 'y,� permit?P��+/I' Hope that you have not been bombarded too much by concerned citizens. I _` appreciate your assistance. y] [Nn- 1 vim Sincerely, �`/ ..i.� Julie Tucker /],�^+' Reply Separator �� 41<k Subject: [Fwd: American stone permitted area] Author: Tracy Davis <Tracy.Davis@ncmail.net> Icy Date: 04/25/2000 3:53 PM q% Julie: Here is a copy of a message I sent to or. Elliot Cramer this morning. I will also send one I sent to Mr. Erwin Danziger this afternoon. I will call you later this afternoon to discuss this with you so you will understand the general information I have been providing. If you need more detailed information, please consider coming in to review the mine file. Thanks. X-Mozilla-Status2: 00000000 Message -ID: <3905B3E9_A203DIA5@ncmail.net> Date: Tue, 25 Apr 2000 11:04:09 -0400 From: Tracy Davis <Tracy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section X-Mailer: Mozilla 4.61 [en] (Win98; I) X-Accept-Language: en MIME -Version: 1.0 To: Elliot Cramer <cramer@email.unc.edu> CC: John Holley <John.Holley@ncmail..net>, Tracy Davis <Tracy.Davis@ncmail.net> Subject: Re: American stone permitted area References: <Pine.A41.4.21L1.0004200756580.41376-100000@logini.isis.une.edu> Content -Type: multipart/mixed; boundary="------------ 526IDA323A6215FGE34E78£B" This is a multi -part message in MIME format. 5261DA32BA6215FEE34E76FB Content -Type: text/plain; charset=us-ascii Content -Transfer -Encoding: 7bit I have recently met with representatives of American Stone and have obtained a more detailed, digitized mine map. Here is a breakdown of the actual acreage disturbed at the site at the 'end of 1999: Ponds=3.8 acres; Plant=9.2 acres; Wastepiles=10.3. acres; Pit=33_.8 acres; and Stockpiles=13.4 acres; Total Disturbed Acreage at the end of 1999=10.5 acres. Over the years, we have reviewed and approved several requests for pit expansion and berm construction. As of today, their are approved to disturb up to a total of 85 acres at this site as approved by the Department on their mine map 1 of3 4/2512" 439 PM Re:[Ftvd: American stone permitted areal (this includes all of the activities/categories noted above). Before they can disturb any other areas within their overall 118 acre permitted site, they would have to apply for a modification to their permit and obtain approval from this office. If you would like more specific information, you may want to set up a date and time to review the mine file in either this office or our Raleigh Regional Office. Thanks. Tracy Davis Elliot Cramer wrote: > At two public hearings American stone has been unable say the size of > their mining pit. I have the following information > Jan 27, 1998 quarry mining report 30 acres mined > July 17, 6.8 acres quarry expansion approved > Does the area mined require approval and , if so, were they originally > approved for 30 acres. I understand that the total area is 132.4 acres. > thank you > Elliot M. Cramer > PO 428 > Chapel Hill, NC 27514 > fax 929-9623 --------------5261DA32BA6215F6E34E78FB Content -Type: text/x-vcard; charset=us-ascii; name="Tracy.Davis.vcf" Content -Transfer -Encoding: 7bit Content -Description: Card for Tracy Davis Content -Disposition: attachment; filename="Tracy.Davis.vcf" begin:vcard n:Davis, P.E.;Tracy E. tel;pager: 1-888-706-1948 tel;fax:(919) 715-8801 tel;work:(919) 733-4574 x-mozilla-htm1:FALSE org:Division of Land Resources/Land Quality Section;NC Department of Environment and Natural Resources version:2.1 email;internet:Tracy.Davis@ncmail.net title:State Mining Specialist adr;quoted-printable:;;1612 Mail Service Center=OD=OA;Raleigh;North Carolina;27699-161.2;USA fn:Tracy E. Davis, P.E. end:vcard ----5261DA32BA6215F6E34E78FB 1 w•d:•Chapcl hill quarry) Subject: [Fwd: Chapel hill quarry) Date: Tue, 25 Apr 2000 15.54.53 -0400 From: Tracy Davis <Tracy. Davis a ncmail. net> Organization: NCDENR - Land Quality Section To: jtucker@erg.com erg.com BCC: Tracy Davis <Tracy.Davis@ncmail. net>, John Holley <John, Holley@ncmail. net> Julie: Here is the message I sent to Mr. Erwin Danziger. Thanks. Subject: Re: Chapel hill quarry Date: Tue, 25 Apr 2000 14.03.08 -0400 From: Tracy Davis <Tracy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Erwin Danziger <emd@ga.unc. edu> CC: John Holley <John. Holley@ncmail. net>, Tracy Davis <Tracy.Davis@ncmail.net> Thanks for your message. I am finalizing my response to you regarding your faxes of 2/29/2000 and 3/10/2000... the delay has been my detailed analysis of blasting reports over the past year. My letter should go out later this week to address your ARR and blasting concerns. The info I forwarded to Dr. Cramer this morning came out of my draft letter to you noted above. The acreage was measured off digitized map to reflect the disturbed acreage in each category at the end of 1999 (thus, it does not include acreage disturbed since January of this year). I have visited the site recently and the company is conducting its activities within the areas approved by this office to be disturbed. As far as the exact acreage that has been disturbed since January, I do not know...we do not have the resources or staff to visit each of our (over 900) permitted mines once a year, let alone survey its acreage during each visit. Realistically, as long as the operator is within the boundaries of the approved mining plan and is deemed in compliance with its mining permit conditions, this office is not concerned with the exact affected acreage at any given time (as it is continually changing, more at some operations than others). The digitized map that generated the acreage figures I gave Dr. Cramer is the best available information at this time (and does include berm construction within the waste piles category). As I noted, at the end of 1999, American Stone had approx. 70.5 acres disturbed out of the 85 acres approved to be disturbed. By now, they are probably somewhere between these two numbers, but still well below the 85 acre total approved to be disturbed. The above information is the best I can provide at this time. In order for your concerns to be more thoroughly addressed, I recommend that you visit our office and review the latest contents of the mine file and maps for this site, if you have further questions. Perhaps this can be done after you receive my letter later this week. Thanks. Tracy Erwin Danziger wrote: Dr Cramer has shared your info about the chapel hill quarry with me. In your letter to me of Nov 2999 you also mention "earthen berms" to be included in disturbed land. In the Annual Reclamation Report it 1 of 3 4/292000 3:55 PM JFwd:.Chapol hill quarry] says, at the bottom, that berms are included in -"waste piles". Does The waste pile figure given in your email to cramer of 10.3 acres include "berms"? If so it seems like a very small number since there are significant berms all around the quarry. I also wonder if your data, includes the newest NW area that is being stripped of earth now, and where digging has begun and overburden removed? And what about the other items mentioned in your letter such as roadways, scales, equipment storage areas, etc.? A look at an aerial photograph might be interesting. Thanks for all your help, erwin danziger Tracy E. Davis, P.E. <Tracy.Davis cr nemail net> State Mining Specialist Division of land RcsourceA and Quality Section NC Department of Environment and Natural Resources Tracy E. Davis, R.E. <Tracy_Davis ..ncmail.net> State Mining Specialist Division of Land RcsoureeA,and Quality Section NC Departmcat of E nvirannten[ and Natural Resources 2 of 3 4/25/2000155 I'M ,[Fwd"American stone permitted area] Subject: JFwd: American stone permitted areal Date: Tue, 25 Apr 2000 15:53:54 -0400 ' �ic� 6 p11 From: Tracy Davis <Tracy. Davis@ncmail. net> Organization: NCDENR - Land Quality Section To: jtucker@erg.com BCC: Tracy Davis <Tracy. Davis@ncmail. net>, John Holley <John,Holley@ncmail.net> Julie: Here is a copy of a message I sent to Dr. Elliot Cramer this morning. I will also send one I sent to Mr. Erwin Danziger this afternoon. I will call you later this afternoon to discuss this with you so you will understand the general information I have been providing. If you need more detailed information, please consider coming in to review the mine file. Thanks. Subject: Re: American stone permitted area Date: Tue, 25 Apr 2000 11:04:09 -0400 From: Tracy Davis <Tracy.Davis a ncmail.net> Organization: NCDENR - Land Quality Section To: Elliot Cramer <cramer@email.unc.edu> CC: John Holley <John.Holley@ncmail.net>, Tracy Davis <Tracy. Davis@ncmail. net> I have recently met with representatives of American Stone and have obtained a more detailed, digitized mine map. Here is a breakdown of the actual acreage disturbed at the site at the end of 1999: Ponds=3.8 acres; Plant=9.2 acres; Wastepiles=10.3 acres; Pit=33.8 acres; and Stockpiles=13.4 acres; Total Disturbed Acreage at the end of 1999=70.5 acres. Over the years, we have reviewed and approved several requests for pit expansion and berm construction. As of today, their are approved to disturb up to a total of 85 acres at this site as approved by the Department on their mine map (this includes all of the activities/categories noted above). Before they can disturb any other areas within their overall 118 acre permitted site, they would have to apply for a modification to their permit and obtain approval from this office. If you would like more specific information, you may want to set up a date and time to review the mine file in either this office or our Raleigh Regional Office. Thanks. Tracy Davis Elliot Cramer wrote: > At two public hearings American Stone has been unable say the size of > their mining pit. I have the following information > Jan 27, 1998 quarry mining report 30 acres mined > 7uly 17, 6.8 acres quarry expansion approved > Does the area mined require approval and > approved for 30 acres. I understand that > thank you > Elliot M. Cramer > PO 428 if so, were they originally the total area is 132.4 acres. ] of 2 4/25/2000 3:55 1'M Re; Chapel hill quarry Subject: Re: Chapel hill quarry Date: Tue, 25 Apr 2000 14.03.08 -0400 From: Tracy Davis <Tracy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Erwin Danziger <emd cr ga,unc,edu> CC: John Holley <John.Holley ct ncmail.net>, Tracy Davis <Tracy.Davis@ncmaiI.net> Thanks for your message. I am finalizing my response to you regarding your faxes of 2/29/2000 and 3/10/2000- the delay has been my detailed analysis of blasting reports over the past year. My letter should go out later this week to address your ARR and blasting concerns. The info I forwarded to Dr. Cramer this morning came out of my draft letter to you noted above. The acreage was measured off a digitized map to reflect the disturbed acreage in each category at the end of 1999 (thus, it does not include acreage disturbed since January of this year). I have visited the site recently and the company is conducting its activities within the areas approved by this office to be disturbed. As far as the exact acreage that has been disturbed since January, 1 do not know ... we do not have the resources or staff to visit each of our (over 900) permitted mines once a year, let alone survey its acreage during each visit. Realistically, as long as the operator is within the boundaries of the approved mining plan and is deemed in compliance with its mining permit conditions, this office is not concerned with the exact affected acreage at any given time (as it is continually changing, more at some operations than others). The digitized map that generated the acreage figures I gave Dr. Cramer is the best available information at this time (and does include berm construction within the waste piles category). As I noted, at the end of 1999, American Stone had approx. 70.5 acres disturbed out of the 85 acres approved to be disturbed. By now, they are probably somewhere between these two numbers, but still well below the 85 acre total approved to be disturbed. The above information is the best I can provide at this time. In order for your concerns to be more thoroughly addressed, I recommend that you visit our office and review the latest contents of the mine file and maps for this site, if you have further questions. Perhaps this can be done after you receive my letter later this week. Thanks. Tracy Erwin Danziger wrote: Dr Cramer has shared your info about the chapel hill quarry with me. In your letter to me of Nov 29 '99 you also mention "earthen berms" to be included in disturbed land. In the Annual Reclamation Report it says, at the bottom, that berms are included in "waste piles". Does The waste pile figure given in your email to cramer of 10.3 acres include "berms"? If so it seems like a very small number since there are significant berms all around the quarry. also wonder if your data, includes the newest NW area that is being stripped of earth now, and where digging has begun and overburden removed? And what about the other items mentioned in your letter such as I of 2 4/25/2000103 PM Re: Chapel hill quam roadways, scales, equipment storage areas, etc.? A look at an aerial photograph might be interesting. Thanks for all your help, erwin danziger I Tracy E. Davis, P.E. <I'racy.Davis @ncmail.net> state Mining Specialist 1 Division of Land Rcsourccs/Land Quality smtion NC Deparimcut of Cavironmeal and Natural Rowurces i 2 of2 425/2000 2:03 PM R'v. American stone Penninal ores Subject: Re: American stone permitted area Date: Tue, 25 Apr 2000 11:04:09 -0400 - From: Tracy Davis <Tracy. Davis r+ ncmail.net> Organization: NCDENR - Land Quality Section To: Elliot Cramer <cramer@email.unc.edu> CC: John Holley <John.Holley@nemail.net>, Tracy Davis <Tracy.Davis@ncmail.net> I have recently met with representatives of American Stone and have obtained a more detailed, digitized mine map. Here is a breakdown of the actual acreage disturbed at the site at the end of 1999: Ponds=3.8 acres; Plant-9.2 acres; Wastepiles-10.3 acres; Pit-33.8 acres; and Stockpiles-13.4 acres; Total Disturbed Acreage at the end of 1999=70.5 acres. Over the years, we have reviewed and approved several requests for pit expansion and berm construction. As of today, their are approved to disturb up to a total of 85 acres at this siteas approved by the Department on their mine map (this includes all of the activities/categories noted above). Before they can disturb any other areas within their overall 118 acre permitted site, they would have to apply for a modification to their permit and obtain approval from this office. If you would like more specific information, you may want to set up a date and time to review the mine file in either this office or our Raleigh Regional Office. Thanks. Tracy Davis Elliot Cramer wrote; > At two public hearings American Stone has been unable say the size of > their mining pit. I have the following information > Jan 27, 1998 quarry mining report 30 acres mined > July 17, 6.8 acres quarry expansion approved > Does the area mined require approval and , if so, were they originally > approved for 30 acres. I understand that the total area is 132.4 acres. thank you Elliot M. Cramer PD 428 Chapel Bill, NC 27514 fax 929-9623 Tracy E. Davis, P.E. <Tracv.Davis(rmortail.net> Statc Mining Specialist 1 Division ol'Land Resourcesn.and Quality Section jNC Doparinteal of Enviromnent and Natural Resources I oft 4,CSM00 It 10AM i Martin Marietta Aggregates 11 P.O. Box 30013 Raleigh, North Carolina 27622-0013 Telephone: (919) 781-4550 April 29,1998 Mr. Tracy E. Davis, P.E. Mining Specialist Division of Environmental Management P.O. Box 27687 Raleigh, NC 27611 Subject: Mine Permit Modification Chapel Hill Quarry —Permit #68-02 Orange County Dear Mr. Davis: Enclosed please find duplicate copies of a completed Application for a Mining Permit Modification to cover the disturbance of an additional 14.4 acres at the above referenced facility. The additional acres included in this submittal cover 7.6 acres of new berm and 6.8 acres of pit expansion. , Included with this submittal you will find the following: • Completed first 2 pages of the application form • Check #98-009068 in the amount of $250 to cover the permit processing fee • Revised mine map showing the changes • Erosion control details for the new berm • Engineering drawings and details for a relocated drainage channel In order for the pit to expand at this site, an unnamed tributary to Phils Creek must be relocated for 900 feet. Both the Corps of Engineers and the NC Division of Water Quality have been to the site to inspect the project area. The appropriate permit application forms have been submitted to these agencies to cover this relocation. The channel was not viewed by either agency as a significant stream and wetlands were not an issue. Detailed engineering drawings are included that show the channel cross sections, cut depths, erosion control and revegetation plan. As the plans show, 170' of the distance will be covered by a 54" diameter pipe under the berm. April 29, 1998 Page 2 The mine map includes a seeding schedule for general vegetation, a typical berm detail, bench diagram, diversion ditch detail and pipe outlet stabilization for the 54" pipe. This is also a new CAD generated map that includes color codes for various site features. It is critical to the production processes at this site that additional pit area becomes available in the next few months. Anything that your department can do to process this modification in a minimal amount of time would be greatly appreciated. We understand that the unnamed tributary relocation can not take place until the Corps of Engineers and the Division of Water Quality complete their permitting process. Receiving approval from your office to begin construction on part of this new berm will allow the site the new pit area that is needed. Please get in touch with this office if any additional information is needed on this matter. Since-ely, Steve Whitt, P.E. Environmental Engineer CC: Dean Hardy Al Van Dorp Ken Brown NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES LAND QUALITY SECTION APPLICATION FOR A MINING (PLEASE PRINT OR TYPE) 1. Name of Mine: Chapel Hill County: 2. Name of Applicant*: 3. Permanent address for receipt of mail**: P.Q. Box 30013 Raleigh, NC 27622 RECEIVE DEHNR ND QUALITY SECTION Telephone: (919) 781-4550 4. Mine Office Address: 1807 HM 54 West Chapel Hill NC 27516 Telephone: 19 9-7131 Mine Manager: Ken Brown We hereby certify that all details contained in this Permit Application are true and correct to the best of our knowledge. We fully understand that any willful misrepresentation of the facts will be cause for permit revocation. ***Signature: Date: April 28.1998 Print Dame: Robert R. Winchester Title: Senior Vice President * This will be the name that the mining permit will be issued to and the name that must be indicated on the reclamation bond or other security that corresponds to this site. ** The Land Quality Section must be notified of any changes in the permanent address or telephone number. *** Signature of company officer required. G.S. 74-51 provides that the Department shall grant or deny an application for a permit within 60 days of receipt of a complete application or, if a public hearing is held, within 30 days following the hearing and the filing of any supplemental information required by the Department. All questions must be addressed and all required maps provided before this application can be considered complete. Attach additional sheets as needed. APPLICATION FOR A MINING PERMIT • NOTE- All of the following questions must be thoroughly answered with regards to your mining operation for the intended life of the mine. All responses must be clearly conveyed on a corresponding, detailed mine map. A. GENERAL CHARACTERISTICS OF THE MINE Answer all of the following that apply: 1. a. If this is an application fora NEW permit, indicate the total acreage at the site to be covered by the permit (this is the acreage that the "new permit " fee will be based upon): Of this acreage, how much is owned and how much is leased? Acres owned: Acres leased: Property owner if leased: b. If this is an application for RENEWAL of a mining permit. indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No. Total permitted acreage (this is the acreage that the "renewal' fee will be based upon): c. If this is an application for a MODIFICATION to a mining permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No.: 68-02 Total permitted acreage: 118 Does the modification involve acreage within the previously approved permit boundary? Yes X No . If yes, indicate the acreage to be covered by this modification ( this is the acreage that the "major modification" fee will be based upon): 14.4 Does the modification involve acreage outside the previously approved permit boundary? Yes —No . If yes, indicate the additional acreage to be covered by this modification: (NOTE: you must complete all of section F. of this applieatiDn form entitled Notification of Adjoining Landowners). Of this acreage to be added to the permit, will any portion of this acreage be affected (disturbed, ground cover removed) by the mining operation? Yes X No_ (if no, a "minor modification" fee of $50.00 is required, despite the "undisturbed"" acreage to be added). If yes, indicate the acreage to be affected ,within the acreage to be added to the permit (the total acreage to be added to the permit is the acreage that the "major modification" fee will be based upon): 14.4 d. If this is an application for TRANSFER of a mining permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No.: Total permitted acreage: • SEE THE FEE SCHEDULE AT THE END OF THIS FORM FOR THE PROPER FEE AMOUNT TO BE PAID FOR THE REQUESTED PERMIT ACTION(S) AND CORRESPONDING ACREAGE NOTED ABOVE. 2. Indicate the approximate longitude and latitude, in degrees -minutes -seconds, of the center of the mine site: LONGITUDE (dd-mm-ss): 79 08 30 '" Quadrangle: White Cross LATITUDE(dd-mm-ss): 35 5545 3. Name of all materials mined: Granite -2- AMERICAN STONE COMPANY DATE CHECKNO. P.O. BOX 30013 RALEIGH,NG. 27622 VENDOR NO. 61395 4/28/98 980009060 DATE INVOICE/CREDIT GROSSAMT AM DESC CREDIT DISCOUNT NETAMOUNT I I I I 04698 INE NAP 25000 250p0 I I i I I I I THEATTACHED CHECK IS IN PAYMENT TOTAL D FOR REMS DESCRIBED ABOVE oc AMERICAN .STONE COMPANY P.O. ROK 30013 RAEEIGH, N.C. 29622 FIRST GREENS BANK 6 TRUST CO. GREENSBORONC 27401 PAYTOTHEOROERCF: NC DENR P 0 BOX 27687 RAL.EIGH ww CHECKNO. 98-009068 DIV/DISTRICT DISBURSEMENT ACCT. VOID SIXTY DAYS FROM DATE DATE CHECK AMOUNT 04/28/98 $250,00 AMERICAN STONE COMPANY NC 27611 /1 & AUTReRZyV WMATINVE Martin Marietta Aggregates CHAPEL HILL QUARRY Orange County, North Carolina RECEIVED DEHNR APB 310 !°90 LAND QUALITY SECTION PIT EXPANSION, BERM CONSTRUCTION AND CREEK RELOCATION SEDIMENT AND EROSION CONTROL PLAN CHAPEL HILL QUARRY PIT EXPANSION, BERM CONSTRUCTION AND CREEK RELOCATION TABLE OF CONTENTS PAGE Berm Construction Erosion Control Plan Enlargement of Berm Area 1 Construction Sequence 2 Sediment Basin Schedule 3 Sediment Basin Calculations 4 Diversion Ditch Schedule 12 Creek Relocation Plan Project Site Plan 13 Construction Sequence 14 Construction Contours Map 15 Station Cross Sections 16 Channel Erosion Control Plan 17 Channel Design Drawings 18 Drainage Area USGS Quad Sheet 20 Pipe Sizing Calculations 22 Tree Planting 24 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENTBASIN No.] Sediment Storage Volume= 1,800 Cubic It/Acre Drainage Area= 1.8 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 3,240 Cubic Ft. Use Sediment Basin Dimensions of 42 'L x 21 Spillway Desim Maxima Row depth not to "wind V During passage of 10 Yr. Storm Weir Equation: Q=C„LHta Q = 6.5 cfs (From Flow Calculations) C„= 3 (Broadcrested Weir) H - 1 Ft. (Max. Flow Depth) Q L— C„H's L,qp 2.16 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) SEDIMENTBA.SIN No.1 Sediment Storage Volume = 1,800 Cubic R /Acre Drainage Area= 0.9 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume a 1,620 Cubic Ft. Use Sediment Basin Dimensions of. 30 'L x 15 'W x 4' D Spillway Design: Maxium Bow depth untie exceed I'During passage of 10 Yr. Stan Weir Equation: Q=C„LH" Q= 3.2 cfs (From Diversion Ditch Calcs.) C„e 3 (Broadmixed Weir) H= 1 Ft. (Max. Flow Depth) Q L= CWH"' L,p 1.08 Ft. Use Miniumum Weir Lcngthof 4 CESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet 3 of 11 April 29, 1998 PA6L 4 SEDIMENT BASIN SCHEDULE MARTIN MARIETf3AK MATERfA1:5`li "x s «' S" MEW Jon,0429/96' i'. ?px°aT5'"i`. .:r &win DwmaK Arta Sediment Basin Di,rcnsbns Weir MicronesiansNo. (Acres S .ne L•xW iD' To Widthx Boron Width up W 1 1.8 1,240 42'L x 21'W x 4'D 12' x 6' Was 2 0.9 1.620 30'Lx 15'W x 4'0 10' x 4' up to J 0.0 1,278 26 4 x U'W x 4'D 10' x 4' up to 4 0.8 1,404 28 1 x l4'W x 4'D 10' a 4' up to 5 0.4 274 1 20'Lx 10'Wx 4'D 10'x 4' up to 6 1] 2,988 40'L x 209Vx 41D 12-x 6' up to 9 1.0 1,728 30'Lx 15'W x 4'D 10' x 4' saw 8 1.6 4899 401x20'Wx 4'D 12' x 6' up W 9 1.1 I'm 02%x I69Vx 4'D 12'x 6' up to 10 1.8 21250 34'Lx 17'W x 4'D 12' x 6' Notes: 1) Sediment traps ram sized for the WW1 drainage area with I cleawout per year. 2) Weir dimensions are minimum re9uimments from NCMCPDM (Table 6.(50a). Sediment Stamps Capacity in Months: 12 Months Sediment Volume per Acre per Year: 1 1.800 Cubic Fat Martin Marietta Materials, Inc. Chapcl Hill Quarry Shen: 2 of II April 29, 19" FACBE. '� SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENTBASIN No.d Sediment Storage Volume = 1,800 Cubic ft/Acre Drainage Area= 0.71 Acres Required Volume - Sediment Storage Volume x Drainage Area Required Volume a 1,278 Cubic Ft. Use Sediment Basin Dimensions of: 26'Lx 13'Wx 4'D Spillway Dcsian: Maxium Bow depth not to exceed I'During passage of 10 Yr. Storm Weir Equation: Q—C„LH1d Q w 2.6 cfe (From Flow Calculations) C.— 3 (Broadcrested Weir) H — 1 Ft. (Max. Flow Depth) Q LC.Hrs L„n,= 0.85 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) SEDIMENT BASIN No.4 Sediment Storage Volume = 1,800 Cubic ft /Acre Drainage Area = 0.78 Acres Required Volume = Sediment Storage Volume x Drainage Ares Required Volume = 1,404 Cubic Ft. Use Sediment Basin Dimensions of: 28 'L x 14 Spillway Denim: Maxium Bow depth not to exceed I'During passage of 10 Yr. Steen Weir Equation: Q- C.LH's Q w 2.8 efs (From Diversion Ditch Calcs.) C.= 3 (Bmadcrested Weir) H = 1 Ft. (Max. Flow Depth) Q L= Q,H" Lam= 0.94 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 4 of 11 April 29, 1998 FA�.E SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN Nay Sediment Storage Volume = 1,800 Cubic ft/Acre Drainage Ares — 0.43 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 774 Cubic Ft. Use Sediment Basin Dimensions of: 20 'L x 10 'W x 4' D Spillway Desi¢n: Maxium flow depth not to exceed I'During passage of 10 Yr. Storm Weir Equation: Q=C.Llf3 Q= 1.5 cis (From Flow Calculations) C,..= 3 (Broaderested Weir) H = 1 Ft. (Max. Flow Depth) Q L— C„H''' L,— 0.52 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) SEDIMENTBASIN No. Sediment Storage Volume = 1,800 Cubic ft/Acre Drainage Area = 1.66 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 2,988 Cubic Ft. Use Sediment Basin Dimensions of: 40 'L x 20 'W x 4 ' D Spillway Desimc Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q=C„LH1s Q= 6.0 efs (From Diversion Ditch Cates.) C,= 3 (Broaderested Weir) H = I Ft. (Max. Flow Depth) Q L— CwH1.5 L,.. 1.99 Ft. Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet. 5 of 11 April 29, 1998 P =I: Co SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENTBASIN No.7 Sediment Storage Volume 1,800 Cubic ft/Acre Drainage Area = 0.96 Acres Required Volume =Sediment Storage Volume x Drainage Area Required Volume = 1,728 Cubic Ft. Use Sediment Basin Dimensions of: 30 'L x 15 'W Spillway Desi= Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q=C.,LH1d Q= 3.5 cfs (From Flow Calculations) C.= 3 (Broadcrested Weir) H = I Ft. (Max. Flow Depth) Q L- C.H16 L„ y= 1.15 Fl. Use Miniumum Weir length of 4 (NCESCPDM) SEDIMENT BASIN N0.8 Sediment Storage Volume = 1,800 Cubic ft/Acre Drainage Area— 1.61 Acres Required Volume =Sediment Storage Volume x Drainage Area Required Volume = 2,898 Cubic Ft. Use Sediment Basin Dimensions of: 40 'L x 20 'W Spillway Design: Maxium flow depth not to exceed ]'During passage of 10 Yr. Storm Weir Equation: Q —C.LH" Q= 1.6 cfs (From Diversion Ditch Coles.) C.= 3 (Broadcrested Weir) H - 1 Ft. (Max. Flow Depth) Q L= C..HI't L, 7— 0.54 Ft. Use Miniumum Weir Len hof 6 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 6 of I April 29, 1998 Pac-,E 7 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN No.9 Sediment Storage Volume = 1,800 Cubic ft/Acre Drainage Arm = 1.09 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,962 Cubic Ft. Use Sediment Basin Dimensions of. 32'Lx 16'Wx 4'D Spillway Desim: Maxium Flow depth not to exceed I' During passage of 10 Yr. Stoma Weir Equation: Q— C.LHhs Q= 3.9cfs (From Flow Calculations) C„= 3 (Broaderested Weir) H= I Ft. (Max. Flow Depth) Q L= C„H1.5 L, — 1.31 Ft. Use Miniumum Weir Leath of 6 CESCPDM) SEDIMENT BASIN No. 10 Sediment Storage Volume= 1,800 Cubic ftMere Drainage Arm= 1.25 Acres Required Volume — Sediment Storage Volume x Drainage Area Required Volume = 1,962 Cubic Ft. Use Sediment Basin Dimensions of. 32'Lx 16'W x 4'D Spillway Design: Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q=Cx.LHra Q= 4.5 cis (From Diversion Ditch Calm.) C,.= 3, (Broadcrested Weir) H = 1 FI. (Max. Flow Depth) Q L= C„ Hh' Lam= 1.50 Ft. Use Miniumum Weir Lengthof 6 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 7 of I I April 29. 1998 & GFE 8 FLOW CALCULATIONS 1) Sediment Trap No. 1 Peak Rate of Flow: Q peak= ? efs Runoff Coefficient: C= 0.45 (Table 8.03A- Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A = 1.80 Acres (See Sediment Basin Design) Q peak-- CiA Q peak = 6.5 cis 2) Sediment Trap No. 2 Peak Rate of Flow: Q peak— ? cfs Runoff Coefficient: C= OA5 (Cable 8.03A- Disturbed Soils) Average Rainfall Intensity: i— 8.0 in/hr (Fig. 8.03e-010 Yr. -S Min.Duration) Drainage Area: A = 0.90 Acres (See Sediment Basin Design) Q peak— CiA Q peak = 3.2 cfs 3) Sediment Trap No. 3 Peak Rate of Flow: Q peak= 7 cfs Runoff Coefficient: C= 0.45 (Table 8.03A-Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A= 0.71 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 2.6 cfs 4) Sediment Trap No. 4 Peak Rate of Flow: Q peak= ? cfs Runoff Coefficient: C- 0.45 (Table 8.03A- Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A = 0.78 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 2.8 cfs Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 8 of I I April 29, 1998 &,� e5 FLOW CALCULATIONS 5) Sediment Trap No. 5 Peak Rate of Flow: Qpeak= ? cfs Runoff Coefficient: C= 0.45 (Table 8.03A- Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Dumtion) Drainage Area: A= 0.43 Acres (See Sediment Basin Design). Q peak- CiA Qpeak = 1.5 cis 6) Sediment Trap No. 6 Peak Rate of Flow: Q peak = ? cis Runoff Coefficient: C - 0.45 (Table 8.03A • Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A= 1.66 Acres (See Sediment Basin Design) Q peak= CiA Qpeak= 6.0 cis 7) Sediment Trap No. 7 Peak Rate of Flow: Q peak= ? cis Runoff Coefficiont: C= 0.45 (Table 8.03A-Disturbed Soils) Average Rainfall Intensity: i = 8.0 tuAv (Fig. 8.03e - 010 Yr. - 5 Min.Dumtion) Drainage Area: A = 0.96 Acres (See Sediment Basin Design) Q peak— CiA IQ peak 3.5 cis 8) Sediment Trip No. 8 Peak Rate of Flow: Q peak= 7 cis Runoff Coefficient: C= 0.45 (Table 8.03A-Disturbed Soils) Average Rainfall Intensity: i = 8.0 inlhr (Fig. 8.03e-010 Yr. - 5 Min.Dumtion) Drainage Area: A - 1.61 Acres (See Sediment Basin Design) Q peak= CiA Q Peak = 5.8 cis Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 9 of I April 29,1998 rAE1E 10 FLOW CALCULATIONS 9) Sediment Trap No. 9 Peak Rate of Flow: Q peak= 9 cis Runoff Coefficient: C= 0.45 (Table 8.03A-Disturbed Soils) Average Rainfall Intensity: i= 8.0 in/hr (Fig. 8.03e- 010 Yr. - 5 Min.Dumtion) Drainage Area: A= 1.09 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 3.9 cfa 10) Sediment Trap No. 10 Peak Rate of Flow: Q peak= 7 cfs Runoff Coefficient: C= 0.45 (Table 8.03A-Disturbed Soils) Average Rainfall Intensity: i = 8.0 in&r (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A= 1.25 Acres (See Sediment Basin Design) Q peakm CiA Q peak- 4.5 cis Martin Marietta Materials, Inc. Sediment Volume per Acre per Year: Sheet: 10 of 11 April 29, 1998 Pa&E� DIVERSION V-DITCH SCHEDULE MARTIN-NIA=TTA�MATERI:diLS,r :�101/29/98a - Y+:cbd' -vr,Z--•.'p" aIT1 ,'�'a� s ChY.a apel Hill QOazry a. . .�i. za .s a�� �-., ..•. .i -.mac:'-m a«e : .n..; Ditch Drainage Slope Size VJlow Vck. l'jp (regJ Qek. No. Area(Acres) (%) T'xd' Wsec) (Pont) (afsJ (ats.) Lining 'TDi!}j 1.5 8A 6.0'x 1.0' 58 6.1 54 18,2 Tall Fescue 4TD2e" 0.2 0A 14.3 3.0 6.0'x LW 6.0 x L0' 3.5 5.5 7.9 3.6 0.6 1.5 23.8 10.9 Toll Fescue Tall Fescue TD3 TD4 0.8 4.8 6.0'x 1.0 5.5 4.6 28 13.9 Tall Fescue TD5 0.9 2.0 tiff x 1.0 5.5 3.0 3.3 8.9 Tall Fenue TD6 0.9 3.6 6.0'x 1.0' 5.5 4.0 3.3 11.9 Tali Fescue TD7 0.6 2.7 6A'x 1.0' 5.5 3.4 23 10.3 Tall Fescue TD8 03 3.1 6.0'x 1.0' 5.5 37 0.9 11 1 Tall Fescue TD9 0.7 4.5 6.Ox 1.0' 5.5 4.4 2.6 13.3 Toll Fcscuc TDIO 1.0 3.0 6.0'x MY 5.5 3.6 3.5 10.9 Tall Fescue TDI I OA 4A 6.0'x I.0 5.5 4.4 1.5 13.2 Tall Fescue TD12 1.2 6.2 6.0'x 1.0 5.5 5.2 4A 15.6 Bermuda Grass TD13 03 5.0 6.9 x 1.0 5.5 4.7 1.0 14.1 Tail Fescue TD14 0.8 3.2 6.0'x 1.0' 5.5 3.7 29 11.2 Tall Fescue TD15 13 6.6 6.0'x 1.0' 5.5 5.4 1 4.5 16.1 Bermuda Grass NOTE: .. Disrh sne from iM diversion ditch i9 internal to the Pd. TMraloes, not insane will line 16a than. f.'rOsasaxaaual am sea Mannirgs Coefficient n= D.Oa3 (Fig 3.05C -Class 0 Rattail Hydraulic Radius: Rs a 0.47 h Weaci eennlcur. We-632 R Martin Marietta Materials, Inc. Chapel Hill Qua Sheet: I of it April 29, 1998 P46E� i L J a W Z _ e ` a. U an ea O - W Q �. ROCK plan \ o! R Y Meek o mFlLRR FABRIC C) CHECK DAM 0 _1 w W Stems I ft. D R. Ukk) nt C A55 A Blain RP -RAP 6 In. A ET(A904t ]. in. 1 t"S� et e � ®III III 1164�,galll� EmawRm .. r*Wk.0 FABRIC FlLlpt F Section Tnry Center of Rock Deck Dam (� Marlh Nmlello Appngalaa^^ lT PHILS CREEK ROCK CHECK DAM PROPOSED CREEK RELOCATION not to scale CHAPEL HILL QUARRY I.. 3W ORANGE COUNTY, N.C. QOARRY: cwn IM QQABRY m M 4k 1 Euaug''T mA ` VCgp on pppp A / F,xislu% V�g¢ytion p ( %!` 'i: TYPICAL CROSS-SECTION EXISTTNG CEIANNELWx,rM PROPOSED CREEK RELOCRTIUN CHAPEL HILL QUARRY ORANGE COUNTY, N.C. uARNY: cexP¢ ®l. 1AY vciom if TYPICAL CROSS-SECTION PROPOSED CHANNEL 1 2 4 0 t�. w:im �w.u.i..M ausm Nx. PROPOSED CREEK RELOCATION CHAPEL HILL QUARRY ORANGE COUNTY, N.C. CC 1.1 ��.% _ �, :.:.'P., • , 1 ��-:.. �_ ` _ �: —�� ���j I C / _ �. � CC aea. � .�r �'•.' •��-'�� CCC' I�I / � / i �� /��% �,�\ � 1 �' r� SJ . `.- Drainage Area — Cv ,( � y 550 O J Quarry Property } ) 1/ 9 1, / r\ A I — r Martin Marietta Aggregates i �C Chapel Hill Quarry White Cross — USGS Quad Sheet, Scale: 1"=2000' s J v< a loos , tip ' �� 00 CT ry � \.d'r'/ VJJJ } ! � 7��// �t� ,. Lit 2 Z-7 55- (D Project Location'. It( 900' of Unnamed Tributary to Phils Creek U5 / eLhftl Kx:-, Zb 535 UV 82 0 PO R. 76 NN -Dill Martin Marietta Aggregates Chapel Hill Quarry White Cross — USGS Quad Sheet Scale: 1'1=20 00, J Rational Method Land Uses Suburban (Residentail) Streets Crops Pasture Woodland Weighed Average Calculations 0.32 x 10.5 acres = 3.36 0.82 x 3.35 acres = 2.75 0.30 x 6.4 acres = 1.92 0.20 x 18.6 acres = 3.72 0.15 x 127.2 acres = 19.07 Total = 30.82 Pipe Sizing Unnamed Tributary Relocation Chanel Hill Ouar" ---C--- Acres 632 10.5 0.82 3.35 0.30 6.4 0.20 18.6 0.15 127.2 Total Drainage Area = 166 Acres 30.82/166 acres = a C of 0.186 for the entire drainage area Time of Concentration Maximum length of travel = 3700' Height of most remote point above outlet = 83' From figure 8.03(a) the time of concentration is 19 minutes Rainfall Intensity Factor Using figure 8.03(e) and the 100 year storm event at 19 minute duration = 6 in/hr Calculate Peak Discharge Q= C(i)(A) Q= 0.186(6.0)(166) Q= 185 cubic feet per second Based on a slope of I % this pine sizes to a 54" diameter pipe. &61E, ZZ I l2' TYPICAL BETWEEN SEMLENGS 2:1 CUT SLOPE OF 4'NORMAL 2:1 CUT SLOPE OF VARIOUS LENGTHS FLOW VARIOUS LENGTHS CHANNEL 6:1 SLOPE 6:1 SLOPE IS HIGH FLOW On each side of the gloated channel 2 rows ofseedlings CHANNEL wOl be Dlaated et 12' w aorta. Red Maples, Riva Birch, Willow Oak and YcHow Popla will be planted An 240rc will be pleated uw. u.u�e aae.ame AA m uwEK I PLAN ViE,W-CHANNEL PLANTTNG R PROPOSED CREEK RELOCATION N CHAPEL HILL QUARRY ORANGE COUNTY, N.C. w. ADAmr. meem, mr. Quu `{orth E:aroliit;t `Department of Environment and Natural Resources Michael F. Easley, Governor William G. Ross .fr., Secretary Charies H. Gardner, P.G., P.E. Director and State Geologist CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Steve Whitt, R E. Manager, Environmental Services Martin Marietta Aggregates P.O. Box 30013 Raleigh, North Carolina 27622-0013 June 7, 2001 RE: Chapel Hill Quarry Mining Permit No. 68-02 Orange County - Cape Fear River Basin Dear Mr. Whitt: NCDENR Division of Land Resources Thank you for your letter dated June 5, 2001 in which you confirmed your company's intent to have the name on the above referenced permit remain "Martin Marietta Aggregates". In addition, you requested that the previous $25,000,00 reclamation bond posted by American Stone Company be released. As Mining Permit No. 68-02 is issued to Martin Marietta Aggregates and, thus, is covered by Martin Marietta Aggregates' $500,000.00 blanket bond, I am hereby releasing the $25,000.00 reclamation bond previously held by this office in the name of American'Stone Company to you for your disposal. Thank you for clarifying this matter_ If you have any questions on the above, please do not hesitate to contact me. Sincerely, 4cy E. vis, P.E., C.P.M. State Mining Specialist Land Quality Section Itd Enclosure ' cc: Mr. John Holley, Jr., P-E. Land Quality Section {919) 733_.1574 Fax (919) 733-2376 Geological Survey Section (919) 733-2423 Fax (919) 733-0900 lb1_ `jail Service Center. Raleigh, North Carolina 27099-1612 N vision of Land Resources (919) 733-A33 Fax: f919) 713-3801 -,V4 E(Yt AI. OPPt�RT NMI' r%FFtR%i.\ rivin:.\CTInN EMPLOYER - 9)'!'. RECY( LO) I !+i",� N)ST Co.'\ E't Ea2 PAPER CMMW Fp P%ma* Pelwn FM lenZ In O R�� Fm E=P= . ......... r NCDENR JAMES B. HUNTJR. r�jT�r ,'GOVERNOR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND ResouRGEs April 19, 2000 Mr. Steve Whitt, P.E. Manager, Environmental Services Martin Marietta Aggregates P.O. Box 30013 Raleigh, North Carolina 27699-0013 RE: American Stone Company Chapel Hill Quarry Mining Permit No. 68-02 Orange County Cape Fear River Basin Dear Mr. Whitt: Your request to update American Stone Company's mine file to reflect a more accurate acreage figure for approved disturbed area for the above referenced mine has been approved. This office has reviewed the digital mapping you submitted with your request on April 13, 2000 and concurs that 85 acres have been approved to be disturbed at this site. Please attach this approval letter to your current mining permit document for this site for future reference. The permit number, mine name, and expiration date will remain the same as before this acreage clarification. 'As a reminder, the permitted acreage at this site is 118 acres and the overall acreage approved to be disturbed is 85 acres, as indicated on the Mine Map received by the Land Quality Section on April 14, 2000. LAND QUALITY SECTION (919) 733-4574 FAX (SIG) 733-2876 GEOLOGICAL SURVEY SECTION (9191 733-2423 FAX (91 9) 733-0900 P.O. BOX 27687, RALEIGH, NORTH CAROLINA 2761 1 -76&7 TELEPHONE 191 91 733-3833 FAX (919) 71 S-88O1 AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER . SO% RECYCLE13/10y POST -CONSUMER PAPER SI. ID 0 Page 2 Thank you for your cooperation in this matter. Please contact Mr. Tracy Davis of this office at (919) 733-4574 should you have any questions concerning this matter. Sincerely, Charles H. Gardner, P.G., P.E. CHG/td 68-02.whitt cc: Mr. Tracy E. Davis, P.E. Mr. John L. Holley, P.E. Ms. Monika Sharma - WRC Mr. Bradley Bennett - DWQ NORTH G#OLINA DEPARTMENT OF w.-.. x ENVIRONMENT AND NATURAL RESOURCES _tea` DIVISION OF LAND RESOURCES July 17, 1998 JAMS$ B. HUNTJR. •' ~�'� Mr. Steve Whitt, P.E. GOvERNOR Environmental Engineer �.. Martin Marietta Materials, Inc, PO Box 30013 Raleigh, North Carolina 27622 WA:YNE MCDEVITT' ' SECRETARY RE: Permit No. 68-02 Chapel Hill Quarry Orange County C„ARL.ESH.GARYDNER.. Cape Fear River Basin P.G., P.E. DIRECTOR AND STATE GEOLOGIST Dear Mr. Whitt: T Your recent request to have the above referenced mining permit - modified has been approved. The modification is to increase the affected area by 14.4 acres as specified by the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised June 9, 1998. This includes 7.6 acres of new berm construction, 6.8 acres of pit expansion, and the 900 foot relocation of a tributary to Phil's Creek. A copy of the modified permit is enclosed. • .. �.._ �44-ice'•. The conditions in the modified permit were based primarily upon the initial application. Modifications were made as indicated by the modification request and as required to insure compliance with The Mining Act of 1971 . The expiration date, mine name and permit number shall remain the same as before the modification. I would like to draw your particular attention to Operating Conditions Nos. 3.D. and 4.C, of the enclosed modified permit. The issuance of a mining permit and/or any modification to it does not supersede local zoning regulations. The responsibility of compliance with any applicable zoning regulations lies with you. As a reminder, your permitted acreage at this site is 118 acres and the amount of land you are approved to disturb is 70.4 acres. LAND QUALITY SECTION (91 9) 733.4574 FAX j91 91 733.287G GEOLOGICAL SURVEY SECTION (919) 733-2423 FAX (919) 733-0900 ++� �°�n�++•kiy rim-�s+"��+(1 P.O. BOX 27687, RALEIcH, NORTH CAROLINA 2761 1-7687 TELEPHONE (919) 733-3833 FAX I919) 715.8801 1 AN EQUAL OPPORTUNITY!AFFIRMATIVE ACTION EMPLOYER - 50 :p RECYCLED/10% POST -CONSUMER PAPER Mr. Steve Whitt July 17, 1998 Page 2 Please review the modified permit and advise this office at (919) 733-4574 should you have any questions concerning this matter. Sincerely, Tracy E. Davis, P.E. State Mining Specialist Land Quality Section TEDltls Enclosures cc: Mr. John L. Holley, P.E. Ms. Barbara Rate-WRC, wlenclosures Mr. Bradley Bennett-DWQ, w/enclosures DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES LAND QUALITY SECTION PERMIT for the operation of a mining activity In accordance with the provisions of G.S. 74-46 through 68, "The Mining Act of 1971 ," Mining Permit Rule 1 5A NCAC 5 B, and other applicable laws, rules and regulations Permission is hereby granted to: Martin Marietta Aggregates Chapel Hill Quarry Orange County - Permit No. 66-02 for the operation of a Crushed Stone Quarry which shall provide that the usefulness, productivity and scenic values of all lands and waters affected by this mining operation will receive the greatest practical degree of protection and restoration. MINING PERMIT EXPIRATION _DATE: April 16, 2003 • 0 Page 2 In accordance with the application for this mining permit, which is hereby approved by the Department of Environment and Natural Resources hereinafter referred to as the Department, and in conformity with the approved Reclamation Plan attached to and incorporated as part of this permit, provisions must be made for the protection of the surrounding environment and for reclamation of the land and water affected by the permitted mining operation. This permit is expressly conditioned upon compliance with all the requirements of the approved Reclamation Plan. However, completed performance of the approved Reclamation Plan is a separable obligation, secured by the bond or other security on file with the Department, and may survive the expiration, revocation or suspension of this permit. This permit is not transferable by the permittee with the following exception: If another operator succeeds to the interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise, the Department may release the permittee from the duties imposed upon him by the conditions of his permit and by the Mining Act with reference to the permitted operation, and transfer the permit to the successor operator, provided that both operators have complied with the requirements of the Mining Act and that the successor operator agrees to assume the duties of the permittee with reference to reclamation of the affected land and posts a suitable bond or other security. In the event that the Department determines that the permittee or permittee's successor is not complying with the Reclamation Plan or other terms and conditions of this permit, or is failing to achieve the purposes and requirements of the Mining Act, the Department may give the operator written notice of its intent to modify, revoke or suspend the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. The operator shall have right to a hearing at a designated time and place on any proposed modification, revocation or suspension by the Department. Alternatively and in addition to the above, the Department may institute other enforcement procedures authorized by law. Definitions Wherever used or referred to in this permit, unless the context clearly indicates otherwise, terms shall have the same meaning as supplied by the Mining Act, N.C.G.S. 74-49. Modifications April 16`1993: This permit has been modified to increase the permitted acreage from 100 to 118 acres as indicated on the Mine Map last revised January 28, 1993. July 17 1998: This permit has been modified to increase the affected area by 14.4 acres as specified by the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised June 9, 1998. This includes 7.6 acres of new berm construction, 6.8 acres of pit expansion, and the 900 foot relocation of a tributary to Phil's Creek. Expiration Date This permit shall be effective from the date of its issuance until April 16, 2003. • • Page 3 Conditions This Permit shall be subject to the provisions of the Mining Act, N.C.G.S. 74-46, et. seq., and to the following conditions and limitations; OPERATING CONDITIONS: 1 . Wastewater and Quarry Dewatering A. Any wastewater processing or mine dewatering shall be in accordance with the permitting requirements and rules promulgated by the N.C. Environmental Management Commission. B. Any stormwater runoff from the affected areas at the site shall be in accordance with any applicable permit requirements and regulations promulgated by the Environmental Protection Agency and enforced by the N.C. Environmental Management Commission. It shall be the permittee's responsibility to contact the Stormwater Section, Division of Water Quality, to secure any necessary stormwater permits or other approval documents. 2. Air Quality and Dust Control A. Any mining related process producing air contaminant emissions including fugitive dust shall be subject to the requirements and rules promulgated by the N.C. Environmental Management Commission and enforced by the Division of Air Quality. B. During quarry operation, water trucks or other means that may be necessary shall be utilized to prevent dust from leaving the permitted area. 3. Buffer Zones A. Any mining activity affecting waters of the State, waters of the U. S., or wetlands shall be in accordance with the requirements and regulations promulgated and enforced by the N. C. Environmental Management Commission. B. Sufficient buffer (minimum 44 foot undisturbed) shall be maintained between any affected land and any adjoining waterway or wetland to prevent sedimentation of that waterway wetland from erosion of the affected land and to preserve the integrity of the natural watercourse or wetland. C. The buffer zones shown on the Mine Map last revised June 9, 1998 shall be maintained to protect adjoining property. These buffer zones, with the exception of the installation of required sediment control measures and earthen berms, shall remain undisturbed. • i Page 4 D. A minimum 40 foot wide undisturbed buffer shall be maintained at all times along both sides of Phil's Creek, and any of its tributaries, measured from the tot of the creek bank with the following exceptions: a) only the construction of the approved sediment and erosion control measures and the channel relocation and enhancement plan as contained in the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised .tune 9, 1998 shall be allowed within this buffer and b) any requirements specified in approvals issued by the Division of Water Quality shall be allowed within this buffer. 4. Erosion and Sediment Control A. Adequate mechanical barriers including, but not limited to diversions, earthen dikes, silt check dams, silt retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land disturbance and maintained to prevent sediment from discharging onto adjacent surface areas or into any lake, wetland or natural watercourse in proximity to the affected land. B. The erosion and sedimentation control measures indicated on the Mine Map last revised June 9, 1998 and the approved supplemental information related to said measures dated June 8, 1998 shall be installed and maintained to prevent off -site damage. C. All approved sediment and erosion control measures and the channel relocation and enhancement plan shall be constructed as specified in the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised June 9, 1998, in addition to any supplemental requirements approved by the Division of Water Quality. D. An erosion and sediment control plan(s) shall be submitted to the Department for approval prior to any land disturbing activities not indicated on the revised erosion control plan or mine maps submitted with the approved application for a mining permit and any approved revisions to it. Such areas include, but are not limited to, expansion outside of the approved pit area, creek crossings, or expansion of overburden disposal areas. 5. Groundwater Protection Groundwater monitoring wells shall be installed and monitored as deemed appropriate by the Department. 6. Graded Slopes and Fills_ A. The angle for graded slopes and fills shall be no greater than the angle which can be retained by vegetative cover or other adequate erosion control measure, structure, or device. In any event, exposed slopes or any excavated channels, the erosion of which may cause off -site damage because of siltation, shall be planted or otherwise provided with groundcover, devices or structures sufficient to restrain such erosion. 0 • Page 5 B. Overburden cut slopes along the perimeter of any pit opening shall be graded to a minimum 2 horizontal to 1 vertical or flatter and shall be stabilized within 60 days of completion. Furthermore, a minimum ten (10) foot wide horizontal safety bench shall be provided at the top of the rock and at the toe of the overburden slope. 7. Surface Drainage The affected land shall be graded so as to prevent collection of pools of water that are, or likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or installed when required to prevent such conditions. 8. Blasting The operator shall provide to the Department a copy of the findings of any seismic studies conducted at this facility. The operator shall make every reasonable effort to incorporate the studies' recommendations into the production blasting program. The following blasting conditions shall be observed by the operator to prevent hazard to persons and adjacent property from thrown rock or vibrations: A. In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity of any component of ground motion shall not exceed 1 inch per second at the immediate location of any building outside of the permitted area regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building outside of the permitted area. The operator shall monitor each blast with a seismograph. B. Airblast overpressure shall not exceed 128 decibels linear (DBL) as measured at the immediate location of any regularly occupied building outside of the permitted area such as any dwelling house, church, school, public building, or commercial or institutional building. If vibration/airblast limits are exceeded, the operator shall immediately report the event with causes and corrective actions to the Department. Use of explosives at the blast site that produced the excessive reading shall cease until corrective actions approved by the Department have been taken. However, blasting may occur in other approved areas within the permitted boundary. Authorization to blast at the blast site may be granted at the time of the verbal reporting of the high airblast reading if the circumstances justify verbal approval. Failure to rep rt will constitute a permit violation. C. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the permitted and guarded area, or the level in Item A. above is exceeded, the operator shall report the incident to the Department immediately and further use of explosive at the site shall be immediately suspended until the following actions have been taken: Page 6 I. A thorough investigation as to the cause(s) of the incident shall be conducted. 2. A satisfactory report detailing the investigation shall be provided to the Department within 10 days of the incident. Said report shall, at a minimum, document the cause(s) of the incident along with technical and management actions that will be taken to prevent further incidents. The report shall meet with the approval of the Department before blasting may resume at the site. Failure to take corrective measures to prevent flyrock and repeated instances of flyrock shall be considered a violation of this permit. D. The operator shall maintain records on each individual blast describing: the total number of holes; pattern of holes and delay of intervals; depth and size of holes; type and total pounds of explosives; maximum pounds per delay interval; amount of stemming and burden for each hole; blast location; distance from blast to closest off -site occupied structure; and weather conditions at the time of the blast. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. E. The operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which notice is requested. 9. High Wall Barrier A physical barrier consisting of large boulders placed end -to -end or fencing shall be maintained at all times around the perimeter of any highwall to prevent inadvertent public access. In addition, a minimum 10 foot wide horizontal safety bench shall be provided at the junction between the top of rock and the toe of any overburden cut slope. 10. Visual Screening A. Existing vegetation shall be maintained between the mine and public thoroughfares to screen the operation from the public. Additional screening methods, such as constructing earthen berms, shall be employed as deemed appropriate by the Department. B. Berms shall be located and constructed as shown on the Mine Map last revised June 9, 1998. In addition to grasses, loblolly and/or Virginia pines or other acceptable species shall be planted as deemed appropriate by the Department to improve visual and noise buffering. 1 1 . Plan Modification The operator shall notify the Department in writing of the desire to delete, modify or otherwise change any part of the mining, reclamation, or erosion/sediment control plan contained in the approved application for a mining permit and any approved revisions to it. Approval to implement such changes must be obtained from the Department prior to on -site implementation of the revisions. • Page 7 12. Refuse Disposal A. No on -site disposal of refuse or other solid waste that is generated outside of the mining permit area shall be allowed within the boundaries of the mining permit area unless authorization to conduct said disposal has first been obtained from both the Division of Waste Management and the Land Quality Section, Department of Environment and Natural Resources. The method of disposal shall be consistent with the approved reclamation plan. B. Mining refuse as defined by G.S. 74-49 (14) of The Mining Act of 1971 generated on -site and directly associated with the mining activity may be disposed of in a designated refuse area. All other waste products must be disposed of in a disposal facility approved by the Division of Waste Management. No petroleum products, acids, solvents or their storage containers or any other material that may be considered hazardous shall be disposed of within the permitted area. C. For the purposes of this permit, the Division of Land Resources considers the following materials to be "raining refuse" (in addition to those specifically listed under G.S. 74-49 (14) of the N.C. Mining Act of 1971): 1) on -site generated land clearing debris 2) conveyor belts 3) wire cables 4) v-belts 5) steel reinforced air hoses 6) drill steel D. If mining refuse is to be permanently disposed within the mining permit boundary, the following information must be provided to and approved by the Division of Land Resources prior to commencement of such disposal: 1 . the approximate boundaries and size of the refuse disposal area; 2. a list of refuse items to be disposed; 3. verification that a minimum of 4 feet of cover will be provided over the refuse; 4. verification that the refuse will be disposed at least 4 feet above the seasonally high water table; and 5. verification that a permanent vegetative groundcover will be established. 13. Annual Reclamation Report An Annual Reclamation Report shall be submitted on a form supplied by the Department by February 1 of each year until reclamation is completed and approved. Page 8 14. Bonding The security which was posted pursuant to N.C.G.S. 74-54 in the form of a $500,000.00 blanket bond is sufficient to cover the operation as indicated in the approved application. This security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded acreage. 15. Archaeological Resources Authorized representatives of the Division of Archives and History shall be granted access to the site to determine the presence of significant archaeological resources. Page 9 APPROVED RECLAMATION PLAN The Mining Permit incorporates this Reclamation Plan, the performance of which is a condition on the continuing validity of that Mining Permit. Additionally, the Reclamation Plan is a separable obligation of the permittee, which continues beyond the terms of the Mining Permit. The approved plan provides: Minimum Standards As Provided By G.S. 74-53 1 . The final slopes in all excavations in soil, sand, gravel and other unconsolidated materials shall be at such an angle as to minimize the possibility of slides and be consistent with the future use of the land. 2. Provisions for safety to persons and to adjoining property must be provided in all excavations in rock. 3. All overburden and spoil shall be left in a configuration which is in accordance with accepted conservation practices and which is suitable for the proposed subsequent use of the land. 4. No small pools of water shall be allowed to collect or remain on the mined area that are, likely to become noxious, odious or foul. 5. The revegetation plan shall conform to accepted and recommended agronomic and reforestation practices as established by the North Carolina Agricultural Experiment Station and the North Carolina Forest Service. 6. Permittee shall conduct reclamation activities pursuant to the Reclamation Plan herein incorporated. These activities shall be conducted according to the time schedule included in the plan, which shall to the extent feasible provide reclamation simultaneous with mining operations and in any event, provide reclamation at the earliest practicable time after completion or termination of mining on any segment of the permit area and shall be completed within two years after completion or termination of mining. RECLAMATION CONDITIONS: 1 . Provided further, and subject to the Reclamation Schedule, the planned reclamation shall be to allow the quarry excavation to fill with water, provide a permanent barricade (fence) along the top of any highwali, and grade and revegetate any areas in unconsolidated material. 2. The specifications for surface gradient restoration to a surface suitable for the planned future use are as follows: A. All areas of unconsolidated material such as overburden or waste piles shall be graded to a 2 horizontal to 1 vertical or flatter slope and terraced as necessary to insure slope stability. B: Any settling ponds and sediment control basins shall be backfilled, graded, and stabilized or cleaned out and made into acceptable lake areas. • • Page 10 C. The processing, stockpile, and other disturbed areas neighboring the mine excavation shall be leveled and smoothed. - D. Compacted surfaces shall be disced, subsoiled or otherwise prepared before revegetation. E. No contaminants shall be permanently disposed of at the mine site. On -site disposal of waste shall be in accordance with Operating Conditions Nos. 12.A.through D. F. The affected land shall be graded to prevent the collection of noxious or foul water. 3. Reveoetation Plan: Disturbed areas shall be permanently revegetated according to the Revegetation Plan provided on the Mine Map last revised June 9, 1998. In addition, the permittee shall consult with a professional wildlife biologist with the N.C. Wildlife Resources Commission to enhance post -project wildlife habitat at the site. 4. Reclamation Plan: Reclamation shall be conducted simultaneously with mining to the extent feasible. In any event, reclamation shall be initiated as soon as feasible after completion or termination of mining of any mine segment under permit. Final reclamation, including revegetation, shall be completed within two years of completion or termination of mining. This permit, issued September 11, 1972, renewed September 27, 1982, and renewed and modified April 16, 1993, is hereby modified this 17th day of July, 1998 pursuant to G.S. 74-52. By: Charles H. Gardner, Director Division of Land Resources By Authority of the Secretary Of the Department of Environment and Natural Resources • • NDRT [OA LIN1J APARTMENT OF .., ENVIRONMENND NATURAL RESOURCES .... DIVISION OF LAND RESOURCES ,.NCDENR... July n, lssa JAMES B. HUNT JR. .- Mr. Steve Whitt, P.E. Environmental Engineer Martin Marietta Materials, Inc. PO Box 30013 Raleigh, North Carolina 27622 'Al MCDEVITT SECRRMY HE: Permit No. 68-02 Chapel Hill Quarry - Orange County CHARLES M. GAPONER Cape Fear River Basin P.G., P.E. DIRECTOR AND STATE GEOLOGIST Dear Mr. Whitt: Your recent request to have the above referenced mining permit modified has been approved. The modification is to increase the affected area by 14.4 acres as specified by the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised June 9, 1998. This includes 7.6 acres of new berm coristruction, 6.8 acres of pit expansion, and the 900 foot relocation of a tributary to Phil's Creek. A copy of the modified permit is enclosed. . The conditions in the modified permit were based primarily upon the initial application. Modifications were made as indicated by the - - modification request and as required to insure compliance with The Mining Act of 1971. The expiration date, mine name and permit number shall remain the same as before the modification. I would like to draw your particular attention to Operating Conditions Nos. 3.D. and - -- - 4.C. of the enclosed modified permit. _ The issuance of a mining permit and/or any modification to it does .. not supersede local zoning regulations. The responsibility of compliance with any applicable zoning regulations lies with you. • -- -_ _ As a reminder, your permitted acreage at this site is 118 acres and the amount of land you are approved to disturb is 70.4 acres. "NO DUALITY SECTION 1019) 733-4314 FA%19$01733.2879 GEOLOGICAL SURVEY SECTION(9191933.2433 PAX 19191733.0900 '-"'•'- •'� l9191>3DJ10% ST P.O. EAN - - CONS)EPAPER EQULRAL[,cUNOMNCLROLIRA2TCTIONET OVER l5NE � Ax E0UAL0✓RowiuxlTV/hfE,wMATIVFAETION EMROY[R USES PECYCI[o1105 vosFcoxeV M[R 9wG E 0 Mr. Steve Whitt July 17, 1998 Page 2 Please review the modified permit and advise this office at (919) 733-4574 should you have any questions concerning this matter. Sincerely, Tracy E. Davis, P.E. State Mining Specialist Land Quality Section TEDltls Enclosures cc: Mr. John L. Holley, P.E. Ms. Barbara Rate-WRC, wlenclosures Mr. Bradley Bennett-DWQ, wlenclosures • DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES LAND QUALITY SECTION PERMIT for the operation of a mining activity In accordance with the provisions of G.S. 74-46' through 68, "The Mining Act of 1 971 ," Mining Permit Rule 15A NCAC 5 B, and other applicable laws, rules and regulations Permission is hereby granted to: Martin Marietta Aggregates Chapel Hill Quarry Orange County - Permit No. 68-02 for the operation of a Crushed Stone Quarry which shall.provide that the usefulness, productivity and scenic values of all lands and waters affected by this mining operation will receive the greatest practical degree of protection and restoration. MINING PERMIT EXPIRATION DATE: April 16. 2003 Page 2 fn accordance with the apoation for this mining permit, A* is hereby approved by the Department of Environment and Natural Resources hereinafter referred to as the Department, and in conformity with the approved Reclamation Plan attached to and incorporated as part of this permit, provisions must be made for the protection of the surrounding environment and for reclamation of the land and water affected by the permitted mining operation. This permit is expressly conditioned upon compliance with all the requirements of the approved Reclamation Plan. However, completed performance of the approved Reclamation Plan is a separable obligation, secured by the bond or other security on file with the Department, and may survive the expiration, revocation or suspension of this permit. This permit is not transferable by the permittee with the following exception: If another operator succeeds to the interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise, the Department may release the permittee from the duties imposed upon him by the conditions of his permit and by the Mining Act with reference to the permitted operation, and transfer the permit to the successor operator, provided that both operators have complied with the requirements of the, Mining Act and that the successor operator agrees to assume the duties of the permittee with reference to reclamation of the affected land and posts a suitable bond or other security. In the event that the Department determines that the permittee or permittee's successor is not complying with the Reclamation Plan or other terms and conditions of this permit, or is failing to achieve the purposes and requirements of the Mining Act, the Department may give the operator written notice of its intent to modify, revoke or suspend the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. The operator shall have right to a hearing at a designated time and place on any proposed modification, revocation or suspension by the Department. Alternatively and in addition to the above, the Department may -institute other enforcement procedures authorized by law. Definitions ..,Wherever used or referred to in this permit, unless the context clearly indicates otherwise, terms shall have the same meaning as supplied by'the Mining Act, N.C.G.S. 74-49. Modifications April 16, 1993: This permit has been modified to increase the permitted acreage from 100 to 118 acres as indicated on the Mine Map last revised January 28, 1993. July 17,_1998: This permit has been modified to increase the affected area by 14.4 acres as specified by the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised .tune 9, 1998. This includes 7.6 acres of new berm construction, 6.8 acres of pit expansion, and the 900 foot relocation of a tributary to Phil's Creek. Expiration Date This permit shall be effective from the date of its issuance until April 16, 2003. Conditions 9 Page 3 This Permit shall be subject to the provisions of the Mining Act, N.C.G.S. 74-46, et. seq., and to the following conditions and limitations: OPERATING CONDITIONS: 1 . Wastewater and Quarry Dewaterin A. Any wastewater processing or mine dewatering shall be in accordance with the permitting requirements and rules promulgated by the N.C. Environmental Management Commission. B. Any stormwater runoff from the affected areas at the site shall be in accordance with any applicable permit requirements and regulations promulgated by the Environmental Protection Agency and enforced by the N.C. Environmental Management Commission. It shall be the permittee's responsibility to contact the Stormwater Section, Division of Water Quality, to secure any necessary stormwater permits or other approval documents. 2. Air Quality and Dust Control A. Any mining related process producing air contaminant emissions including fugitive dust shall be subject to the requirements and rules promulgated by the N.C. Environmental Management Commission and enforced by the Division of Air Quality. B. During quarry operation, water trucks or other means that may be necessary shall be utilized to prevent dust from leaving the permitted area. 3. Buffer zones A. Any mining activity affecting waters of the State, waters of the U. S., or wetlands shall be in accordance with the requirements and regulations promulgated and enforced by the N. C. Environmental Management Commission. B. Sufficient buffer (minimum 40 foot undisturbed) shall be maintained between any affected land and any adjoining waterway or wetland to prevent sedimentation of that waterway wetland from erosion of the affected land and to preserve the integrity of the natural watercourse or wetland. C. The buffer zones shown on the Mine Map last revised June 9, 1998 shall be maintained to protect adjoining property. These buffer zones, with the exception of the installation of required sediment control measures and earthen berms, shall remain undisturbed. Page 4 D. A minimum foot wide undisturbed buffer shall be maintained at all times along both sides of Phil's Creek, and any of its tributaries, measured from the tom of the creek bank with the following exceptions: aj only the construction of the approved sediment and erosion control measures and the channel relocation and enhancement plan as contained in the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised June 9, 1998 shall be allowed within this buffer and b) any requirements specified in approvals issued by the Division of Water Quality shall be allowed within this buffer. 4. Erosion and Sediment Control A. Adequate mechanical barriers including, but not limited to diversions, earthen dikes, silt check dams, silt retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land disturbance and maintained to prevent sediment from discharging onto adjacent surface areas or into any lake, wetland or natural watercourse in proximity to the affected land. B. The erosion and sedimentation control measures indicated on the Mine Map last revised .tune 9, 1998 and the approved supplemental information related to said measures dated June 8, 1998 shall be installed and maintained to prevent off -site damage. C. All approved sediment and erosion control measures and the channel relocation and enhancement plan shall be constructed as specified in the approved modification application, the supplemental documentation, and as indicated on the Mine Map last revised June 9, 1998, in addition to any supplemental requirements approved by the Division of Water Quality. D. An erosion and sediment control plan{s) shall be submitted to the Department for approval prior to any land disturbing activities not indicated on the revised erosion control plan or mine maps submitted with the approved application for a mining permit and any approved revisions to it. Such areas include, but are not limited to, expansion outside of the approved pit area, creek crossings, or expansion of overburden disposal areas. 5. Groundwater Protection Groundwater monitoring wells shall be installed and monitored as deemed appropriate by the Department. 8. Graded Slooes and Fills A. The angle for graded slopes and fills shall be no greater than the angle which can be retained by vegetative cover or other adequate erosion control measure, structure, or device. In any event, exposed slopes or any excavated channels, the erosion of which may cause off -site damage because of siltation, shall be planted or otherwise provided with groundcover, devices or structures sufficient to restrain such erosion, . Page 5 B. Overburden cut slopes along the perimeter of any It opening shall be graded to a minimum 2 horizontal to 1 vertical or flatter and shall be stabilized within 60 days of completion. Furthermore, a minimum ten (10) foot wide horizontal safety bench shall be provided at the top of the rock and at the toe of the overburden slope. 7. Surface Drainage The affected land shall be graded so as to prevent collection of pools of water that are, or likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or installed when required to prevent such conditions. S. Blasting The operator shall provide to the Department a copy of the findings of any seismic studies conducted at this facility. The operator shall make every reasonable effort to incorporate the studies' recommendations into the production blasting program. The following blasting conditions shall be observed by the operator to prevent hazard to cersons and adjacent property from thrown rock or vibrations; A. In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity of any component of ground motion shall not exceed 1 inch per second at the immediate location of any building outside of the permitted area regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building outside of the permitted area. The operator shall monitor each blast with a seismograph. B. Airblast overpressure shall not exceed 128 decibels linear (DBL) as measured at the immediate location of any regularly occupied building outside of the permitted area such as any dwelling house, church, school, public building, or commercial or institutional building. If vibrationlairblast limits are exceeded, the operator shall immediately report the event with causes and corrective actions to the Department. Use of explosives at the blast site that produced the excessive reading shall cease until corrective actions approved by the Department have been taken. However, blasting may occur in other approved areas within the permitted boundary. Authorization to blast at the blast site may be granted at the time of the verbal reporting of the high airblast reading if the circumstances justify verbal approval. Failure to report will constitute a permit violation. C. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the permitted and guarded area, or the level in Item A. above is exceeded, the operator shall report the incident to the Department immediately and further use of explosive at the site shall be immediately suspended until the following actions have been taken: Page 6 A thoagh investigation as to the cause0of the incident shall be conducted. 2. A satisfactory report detailing the investigation shall be provided to the Department within 10 days of the incident. Said report shalt, at a minimum, document the cause(s) of the incident along with technical and management actions that will be taken to prevent further Incidents. The report shall meet with the approval of the Department before blasting may resume at the site. Failure to take corrective measures to prevent flyrock and repeated instances of flyrock shall be considered a violation of this permit. D, The operator shall maintain records on each individual blast describing: the total number of holes; pattern of holes and delay of intervals; depth and size of holes; type and total pounds of explosives; maximum pounds per delay interval; amount of stemming and burden for each hole; blast location; distance from blast to closest off -site occupied structure; and weather conditions at the time of the blast. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. The operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which notice is requested. 9. Kah Wall Barrier A physical barrier consisting of large boulders placed end -to -end or fencing shall be maintained at all times around the perimeter of any highwall to prevent inadvertent public access. In addition, a minimum 10 foot wide horizontal safety bench shall be provided at the junction between the top of rock and the toe of any overburden cut slope. 10. Visual Screening A. Existing vegetation shall be maintained between the mine and public thoroughfares to screen the operation from the public. Additional screening methods, such as constructing earthen berms, shall be employed as deemed appropriate by the Department. B. Berms shall be located and constructed as shown on the Mine Map last revised June 9, 1998. In addition to grasses, loblolly and/or Virginia pines or other acceptable species shall be planted as deemed appropriate by the Department to improve visual and noise buffering. 11. Plan Modification The operator shall notify the Department in writing of the desire to delete, modify or otherwise change any part of the mining, reclamation, or erosion/sediment control plan contained in the approved application for a mining permit and any approved revisions to it. Approval to implement such changes must be obtained from the Department prior to on -site implementation of the revisions. ' 12. Refuse Dis osal • 0 Page 7 A. No on -site disposal of refuse or other solid waste that is generated outside of the mining permit area shall be allowed within the boundaries of the mining permit area unless authorization to conduct said disposal has first been obtained from both the Division of Waste Management and the Land Quality Section, Department of Environment and Natural Resources. The method of disposal shall be consistent with the approved reclamation plan. B. Mining refuse as defined by G.S. 74-49 (14) of The Mining Act of 1971 generated on -site and directly associated with the mining activity may be disposed of in a designated refuse area. All other waste products must be disposed of in a disposal facility approved by the Division of Waste Management. No petroleum products, acids, solvents or their storage containers.or any other material that may be considered hazardous shall be disposed of within the permitted area. C. For the purposes of this permit, the Division of Land Resources considers the following materials to be "mining refuse" (in addition to those specifically listed under G.S. 74-49 (14) of the N.C. Mining Act of 1971): 1) on -site generated land clearing debris 2) conveyor belts 3) wire cables 4) v-belts 5} steel reinforced air hoses 6) drill steel D. If mining refuse is to be permanently disposed within the mining permit boundary, the following information must be provided to and approved by the Division of Land Resources prior to commencement of such disposal: 1 . the approximate boundaries and size of the refuse disposal area; 2. a list of refuse items to be disposed; 3. verification that a minimum of 4 feet of cover will be provided over the refuse; 4. verification that the refuse will be disposed at least 4 feet above the seasonally high water table; and 5. verification that a permanent vegetative groundcover will be established. 13. Annual Reclamation_ Report An Annual Reclamation Report shall be submitted on a form supplied by the Department by February 1 of each year until reclamation is completed and approved. 14. Bonding . • Page 8 The security which was posted pursuant to N.C.G.S. 74-54 in the form of a $500,000.00 blanket bond is sufficient to cover the operation as indicated in the approved application. This security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded acreage. 15. Archaeological Resources Authorized representatives of the Division of Archives and History shall be granted access to the site to determine the presence of significant archaeological resources. • • Page 9 APPROVED RECLAMATION PLAN. The Mining Permit incorporates this Reclamation Plan, the performance of which is a condition on the continuing validity of that Mining Permit. Additionally, the Reclamation Plan is a separable obligation of the permittee, which continues beyond the terms of the Mining Permit. The approved plan provides: Minimum Standards As Provided By G.S. 74-53 1 . The final slopes in all excavations in soil, sand, gravel and other unconsolidated materials shall be at such an angle as to minimize the possibility of slides and be consistent with the future use.of the land. 2. Provisions for safety to persons and to adjoining property must be provided in all excavations in rock. 3. All overburden and spoil shall be left in a configuration which is in accordance with accepted conservation practices and which is suitable for the proposed subsequent use of the land. 4. No small pools of water shall be allowed to collect or remain on the mined area that are, likely to become noxious, odious or foul. 5. The revegetation plan shall conform to accepted and recommended agronomic and reforestation practices as established by the North Carolina Agricultural Experiment Station and the North Carolina Forest Service. 6. Permittee shall conduct reclamation activities pursuant to the Reclamation Plan herein incorporated. These activities shall be conducted according to the time schedule included in the plan, which shall to the extent feasible provide reclamation simultaneous with mining operations and in any event, provide reclamation at the earliest practicable time after completion or termination of mining on any segment of the permit area and shall be completed within two years after completion or termination of mining. RECLAMATION CONDITIONS: Provided further, and subject to the Reclamation Schedule, the planned reclamation shall be to allow the quarry excavation to fill with water, provide a permanent barricade (fence) along the top of any highwall, and grade and revegetate any areas in unconsolidated material. 2. The specifications for surface gradient restoration to a surface suitable for the planned future use are as follows: A. All areas of unconsolidated material such as overburden or waste piles shall be graded to a 2 horizontal to 1 vertical or flatter slope and terraced as necessary to insure slope stability. B. Any settling ponds and sediment control basins shall be backfilled, graded, and stabilized or cleaned out and made into acceptable lake areas. • - • 0 Page 10 • C. The processing, stockpile, and other disturbed areas neighboring the mine excavation shall be leveled and smoothed. D. Compacted surfaces shall be disced, subsoiled or otherwise prepared before revegetation. E. No contaminants shall be permanently disposed of at the mine site. On -site disposal of waste shall be in accordance with Operating Conditions Nos. 12.A.through D. F. The affected land shall be graded to prevent the collection of noxious or foul water. 3. Revegetation Plan: Disturbed areas shall be permanently revegetated according to the Revegetation Plan provided on the Mine Map last revised June 9, 1998. In addition, the permittee shall consult with a professional wildlife biologist with the N.C. Wildlife Resources Commission to enhance post -project wildlife habitat at the site. 4. Reclamation Plan: Reclamation shall be conducted simultaneously with mining to the extent feasible. In any event, reclamation shall be initiated as soon as feasible after completion or termination of mining of any mine segment under permit. Final reclamation, including revegetation, shall be completed within two years of completion or termination of mining. This permit, issued September 11, 1972, renewed September 27, 1982, and renewed and modified April 16, 1993, is hereby modified this 17th day of July, 1998 pursuant to G.S. 74-52. By: G Charles H. Gardner, Director Division of Land Resources By Authority of the Secretary Of the Department of Environment and Natural Resources Re: quarry eval 0 0 Subject: Re: quarry eval Date: Fri, 10 Mar 2000 01:53:05 -0500 (EST) From: Elliot Cramer <cramer@email.unc.edu> To: Tracy Davis <Tracy.Davis@ncmail.net> thank you very much for your helpful information elliot l of 1 3/10/2000 9:33 AM Re: quur?� oval • • 0 Subject: Re: quarry eval Date: Thu, 09 Mar 2000 18:38:37 -0500 From: Tracy Davis <Tracy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Elliot Cramer <cramer@email.unc.edu> Mr. Cramer, thank you for your message. I apologize for the lateness of my reply. I have been traveling the past three weeks. Your methodology appears logical. However, there are several different ways the approximate volume of this quarry could be calculated...it depends on which one you or others feel most accurately conveys the situation. This office does not typically get involved in such determinations, as they are outside the scope of our environmental review. When we permit and regulate a quarry operation, we ensure that it meets the permit conditions during operation and is sufficiently reclaimed when mining is terminated. Because of shortages in staff and resources, as well as the ongoing field adjustments made at quarries, this office does not require detailed dimensions of the quarry during the operation or at its conclusion. We are satisfied with approximate figures, usually in acreage, for statistical purposes only... our main concern is that the pit is stabilized around its perimeter with a permanent safety fence and vegetated slopes and the pit is filled with water. We are not concerned with the actual volume of the final pit ... that is subject to the landowner's wishes and his/her future intentions for the site once mining has been completed. In light of the above, this office does not maintain information on the actual dimensions of the benches, nor do we have a good estimate of the percentage of waste (we have over 130 permitted quarries in NC that are continually changing this plus the fact that we only maintain approximate information on the surface area disturbed by each operation - does not provide us enough information to make an accurate judgment on this issue). As mentioned in earlier correspondence, more accurate dimensions and acreage for the operation as it currently exists is better obtained directly from the company or from digital orthophotographs. Such photographs may be available at the County office, the Department of Transportation, or the NC Geological Survey Section. However, these photos may be several years old. It may be worth the citizen's while to hire an aerial photography company to fly over the operation and take updated, accurate pictures that could be downloaded and measured. I recommend that a consultant be used for this aspect of your analysis, as this office does not have the expertise to do such an investigation. I hope I have answered your questions. Please let me know if you need clarification on the above. Elliot Cramer wrote: > February 22, 2000 > Mr. Tracy Davis > I would appreciate your thoughts on the methodology of following > analyses which build on your suggestions for evaluating quarry > capacity. > Using figures below, a consultant has computed the mined -out > capacity of a 28.8 acre quarry as 1.44Bgal. I've computed the > raw volume (of a cylinder) as 2.33Bgal with 38o being wasted in > benches. Since benches in a larger quarry of the same depth will I of 3 319/2000 6:44 I'M Re; quarry eval • > have less than 38a wastage, I get a conservative estimate of > 1.92Bgal for the 36.8 acre quarry below. > top bot area raw Vol net Vol waste > 480 232 28.8 2.33 1.44 389 consultant (OWASA land) > 490 232 36.8 3.09 1.92 38a Cramer (current mined out) > This seems Like a rather high wastage figure. The currently > mined quarry has wastage from the top down of > 129 for 50 feet down > 249 for 100 feet down. > 34o for 150 feet down > The consultant says that the benches for the potential quarries > are 50' wide and 50' deep_ It would seem that the quarry may > approximated by the top of a 45 degree cone. The area of the > excavation is approximately the difference of the volumes of two > inverted cones with radii (and heights) of r1 and r2 > V = 113 (A1 *rl -A2 *r2) > where Al and A2 are the top and bottom areas of the excavations > and rl and r2 are the radii of circles of the same area. For a 45 > degree cone the height is equal to the radius and the area at any > point is proportional to the square of the radius. > For the potential quarry on OWASA land, this gives 1.53Bgal, > 6.25t higher than the consultant's figure of 1.44Bgal. The > corresponding figure for the current quarry is 2.11 Bgal compared > to 1.92 for the approximate figure above. A proportionate ad- > justment gives an estimate of 1.99Bgal for the current mined -out > quarry. a > Evidently the consultant's estimate assumes that the benches are > kept intact through the mining process. Is this customary? > Elliot M. Cramer > P.O 428 > Chapel Hill, NC 27514 > 929-942-2503 > fax 919-962-2537 > Internet Cramer@UNC.EDU www.unc.edu/-Cramer Tracy E. Davis, P.E. <Trac..Davis a,ncmail.net> State Mining Specialist Division of Land Resources/Land Quality Section NC Department of Environment and Natural Resources 2 of 3 NW2000 6:44 PM Re: Happy New Year Subject: Re: Happy New Year Date: Fri, 21 Jan 2000 14.16.38 -0500 From: Tracy Davis <Tracy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Susan Edwards <Susan. Edwards@ncmail. net> CC: Erwin Danziger <emd@ga.une.edu> Susan, can you send Mr. Danziger a copy of the 1998 ARR and map as well? Mr. Danziger, thanks for the update —until now, I have not been aware of what has b currently going on at the local level with this project. This helps give me a bette Thanks. Tracy Erwin Danziger wrote: > Thank you once again for your prompt reply. Based on your normal policy > then, you would not receive a new mine map this year, so just send the > ARR when it gets there in February. However this does bring up the > question, since you dial permit 6.8 additional acres to be mined in 1998 > ,may I get an updated mine map from last years report ??? > For your info , the reason Im interested in the ARR and the mine maps, > is that OWASA (Orange Water And Sewer Authority) , who will eventually > get the mine pit when excavation stops for a water storage area, keeps > claiming that the area shown in the ARR reports is much bigger than the > actual maned area, which OWASA claims is much smaller, and therefore > will hold a lot LESS water than I have been calculating. In fact > recently OWASA claimed that the APR reports show "permitted area" and > NOT actually mined area, but I believe otherwise. I believe the acreage > shown in item 4D is the area actually being mined, not just "permitted". > OWASA and ASC are trying to get approval from the local governments to > expand the mine by 30 acres or so, while Im saying Just go a little > deeper for a 10 -15 year period, and you (OWASA) will have all the > storage capacity thats needed. The ironic thing is that OWASA fought > like hell to get this area rezoned some years ago as "protected Univ > Lake watershed " overlay zone to keep out commercial activity and other > businesses that might hurt the watershed in some way, yet now they are > working with ASC to have more of it mined. > Tracy Davis wrote: > > Erwin, I am not sure if we have received the APR for the 1999 calendar year yet, > > deadline is not until. 21112000. However, once we do, Susan will either fax or m > > the form. > > Regarding your question about the APR map, it is our policy that if the operatic > > underwent a formal permit action since 11111999, which included providing us wit > > overall updated mine map, the requirements for an ARR map would be waived etc av > > receiving another copy of the same map we already have in the file, reduce costs > > reduce unnecessary paper in the file). If AMC chooses to send us a map despite > > then we will send you a copy with the ARR form. Let me know if you need further > > information on this issue. Thanks. Tracy > > Erwin Danziger wrote: of 4 1 /21 /2000 117 PM Re: Happy New Year 10 0 > > > Thank you Susan, If American Stone did NOT submit an updated mine map > > > this year then please just send me a copy of the ARR to : > > > Erwin Danziger 213 Hillsborough Street Chapel Hill, N.G. 27514-3522 > > > Thank you, but I thought that ASC was required to send an updated mine > > > map, especially now that an additional 6.8 acres was permitted. > > > In any case , I hope you understood this request to be for the 1999 data > > > which is due in your Office sometime this month Jan 2000. Thanks OR if > > > only the arr IS AVAILABLE YOU COULD FAX IT BY PHONING first AND TELLING > > > ME not TO PICK UP THE PHONE ON YOUR FAX CALL , tel for both voice and > > > fax is (919) 942-1638 thanks > > > Tracy Davis wrote: > > > > Susan, can you make a copy of the 1999 ARR and associated map (if one is sub > > > > for the American Stone Company, Chapel Hill Quarry 0 68-02) and send it to M > > > > Danziger? Mr. Danziger, can you Email Susan your mailing address? Thanks. > > > > Erwin Danziger wrote: > > > > > Thank you again for the info! I wonder if I could purchase a copy of the > > > > > new American Stone (MM) Reclamation Report for the Chapel Hill Quarry > > > > > which will be due in your office by the first of February , for 1999. I > > > > > would also like a copy of the updated Mine Map or Pit Map that > > > > > apparently is required to come with the Reclamation Report. If you tell > > > > > me how much that would cost Ill send you a check , thanks , erwin > >•> > > danziger > > > > > Tracy Davis wrote: > > > > > > Sorry for the lateness of my reply. Several of my people have been out > > > > > > office sick, so I've had to hold down the fort on my own for the past se >>>>>>days. > > > > > > Per -your request, here are my estimations (based on 36.8 acres of mine > > > > > > excavation) : > > > > > > 1) 36.8 acres x 43,560ft^211 acre = 1,603,008 sq. feet > > > > > > 2) Volume = Area x Height = 1,603,008 sq. feet x 250 feet = 400,752,000 >>>>>> feet > > > > > > (this assumes that the depth will remain approx. 250 feet as origi > > > > > > proposed, > > > > > > due to haulage economics, and that the pit is just expanding lat > > > > > > 3) Therefore, the maximum volume of water in a hole with a surface area > > > > > > 36.8 acres, vertical pit walls (ie, no benches), and a depth of > > > > > > = approximately 400,752,000 cubic feet of water = approximately > > > > > > 2,998,025,712 gallons of water = approximately 3 billion gallons >>>>>>water > > > > > > (take 400,752,000 cu.ft. x 7.481 gallons/1 cu.ft to get gallons > > > > > > water) 2 of4 1/21M00 117 I'M Re: FlappyNed, Year . > > > > > > 4) As most modern quarries have several levels of benches, some of the > > > > > > volume should be deducted. As I am not familiar with this particular qu > > > > > > features, as far as the size and number of benches, I cannot reasonably > > > > > > the volume of water that should be removed from the above calculations. > > > > > > However, assuming that 109 of the quarry's volume as determined above is > > > > > > up by benches, a more reasonable volume of water that would be held by t > > > > > > excavation would be: > > > > > > 0.10 x 2,998,025,712 gallons = 299,802,571 gallons (to be re >>>>>>because > > > > > > of benching); therefore, removing 10t from the volum > > > > > > would yield: > > > > > > 2,998,025,712 gallons - 299,802,571 gallons = > > > > > > 2,698,223,141 gallons > > > > > > or approx. 2.7 billion gallons > > > > > > 5) As I have noted in the past, this is a quick estimate of volume, bas >>>>>> the > > > > > > ultimate acreage and depth proposed by the mining company. The. > > > > > > would have to be surveyed periodically for actual dimensions at > > > > > > given > > > > > > time to determine a more accurate volume estimate. I am not awa > > > > > > American Stone does this, what equipment they may use, or where > > > > > > record/maintain this information. This office does not maintain > > > > > > require > > > > > > permitted operators to provide such information. However, minin > > > > > > companies > > > > > > may be required to report certain information to other state and > > > > > > agencies > > > > > > for tax or other legal/business purposes. Some of this informat > > > > > > be available > > > > > > on the Internet. > > > > > > I hope this has provided you with the information you requested. This i > > > > > > best information I can provide on this subject. If you have further que > > > > > > let me know. Thanks. > > > > > > Erwin Danziger wrote: > > > > > > > Erwin Danziger wrote: > > > > > > > > Happy New Year ! > > > > > > > > Any chance you could take a few minutes and respond to my message be > > > > > > > > Also, are there any reports anywhere in any (State) dept that would > > > > > > > > me how many (approx) hundreds of thousands of tons of rock American > > > > > > > > Stone excavated from the Chapel Hill quarry in the past three years. > > > > > > > > assuming this is reported and is PUBLIC information? > > > > > > > > Thank you, erwin danziger > > > > > > > > ------------------------------------------------------------------- > > > > > > > > Subject: Thank You 3 of 4 1/21/2000 2:17 1'M Re: Happy New Year . 0 > > > > > > > > Date: Thu, 23 Dec 1999 14:33:29 -0500 > > > > > > > > From: Erwin Danziger <emd@ga.unc.edu> > > > > > > > > To: Tracy.Davis@ncmail.net > > > > > > > > By the way, after Christmas sometime, could you recalculate somethin > > > > > > > > for me? You may remember , on 11/20/96 when I visited with you , yo > > > > > > > > were kind enough to show me how to calculate capacity in gallons of > > > > > > > > water, for almost any mine hole. I have in your handwriting the > > > > > > > > following : 27.5 acre mine = 2,240,372,475 gallons at 250 feet dept > > > > > > > > assuming vertical walls. I believe you said one could only use 80 or > > > > > > > > 85a of that because even when fully mined out , there will be bench > > > > > > > > deft; you also calculated at about 40 acres = 3,272,937,800 gallons > > > > > > > > the above 15-20 percentage. > > > > > > > > Given that you all have now approved a pit of 36.8 acres, could you > > > > > > > > please calculate for me the storage capacity in gallons, WHEN FULLY > > > > > > > > MINED OUT, and when adjusted for the benches that must remain in >>>>>>>>place??? > > > > > > > > Given the perimeter of this quarry ,is the maximum depth 275 OR 250? > > > > > > > > I have been using the formula: acres x depth in feet x 325.9 thousan > > > > > > > > of gallons per acre foot x .85 . Is this correct?? I just want some > > > > > > > > gross approximation within 2--3 hundred million gallons. > > > > > > > > Your advice and help is greatly appreciated, Thank you and Merry > > > > > > > > Christmas!! erwin danziger Tracy E. Davis, P.E. <Tracy.Davis(2(.nclmail. net> State Mining Specialist Division of Land Resources/Land Quality Section NC Depardnent of Environment and Natural Resources 4 of 4 1 /21 /2000 2:17 PM Re:HnT0New,Yew • • Q�- Subject: Re: Happy New Year Date: Fri, 21 Jan 2000 09:4038 -0500 From: Tracy Davis <Tracy.Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Susan Edwards <Susan.Edwards@ncmail.net> CC: Erwin Danziger <emd@ga.unc. edu> Susan, can you make a copy of the 1999 ARR and associated map (if one is submitted) for the American Stone company, Chapel Hill Quarry (R68-02) and send it to Mr. Danziger? Mr. Danziger, can you email Susan your mailing address? Thanks. Tracy Erwin Danziger wrote: > Thank you again for the info! I wonder if I could purchase a copy of the > new American Stone (MM) Reclamation Report for the Chapel Hill Quarry > which will be due in your office by the first of February , for 1999, I > would also like a copy of the updated Mine Map or Pit Map that > apparently is required to come with the Reclamation Report. If you tell > me how much that would cost Ill send you a check , thanks , erwin > danziger > Tracy Davis wrote: > > Sorry for the lateness of my reply. Several of my people have been out of the > > office sick, so I've had to hold down the fart on my own for the past several > > days. > > Per your request, here are my estimations (based on 36.8 acres of mine > > excavation): > > 1) 36.6 acres x 43,560ft^211 acre = 1,603,008 sq. feet > > 2) Volume = Area x Height - 1,603,008 sq. feet x 250 feet = 400,752,000 cubic > > feet > > (this assumes that the depth will remain approx. 250 feet as originally > > proposed, > > due to haulage economics, and that the pit is just expanding laterally) > > 3) Therefore, the maximum volume of water in a hole with a surface area of > > 36.8 acres, vertical pit walls (ie, no benches), and a depth of 250 feet > > - approximately 400,752,000 cubic feet of water - approximately > > 2,998,025,712 gallons of water =.approximately 3 billion gallons of > > water > > (take 400,752,000 cu.ft. x 7.481 gallonsll cu.ft to get gallons of > > water) > > 41 As most modern quarries have several levels of benches, some of the above > > volume should be deducted. As I am not familiar with this particular quarry's > > features, as far as the size and number of benches, I cannot reasonably estimate > > the volume of water that should be removed from the above calculations. > > However, assuming that 10& of the quarry's volume as determined above is taken > > up by benches, a more reasonable volume of water that would be held by this I ur3 121I20009:51 AM Re: ]Nappy New. Year . 0 > > excavation would be: > > 0.10 x 2,998,025,712 gallons = 299,802,572 gallons (to be removed > > because > > of benching); therefore, removing 10$ from the volume above > > would yield: > > 2,998,025,712 gallons - 299,802,571 gallons > > 2,698,223,141 gallons > > or approx. 2.7 billion gallons > > 5) As I have noted in the past, this is a quick estimate of volume, based on > > the > > ultimate acreage and depth proposed by the mining company. The pit > > would have to be surveyed periodically for actual dimensions at any > > given > > time to determine a more accurate volume estimate. I am not aware if > > American Stone does this, what equipment they may use, or where they > > record/maintain this information. This office does not maintain or > > .require > > permitted operators to provide such information. However, mining > > companies > > may be required to report certain information to other state and federal > > agencies > > for tax or other legal/business purposes. Some of this information may > > be available > > on the Internet. > > I hope this has provided you with the information you requested. This is the > > best information I can provide on this subject. if you have further questions, > > let me know. Thanks. > > Erwin Danziger wrote: > > > Erwin Danziger wrote: > > > > Happy New Year > > > > Any chance you could take a few minutes and respond to my message below? > > > > Also, are there any reports anywhere in any (State) dept that would show > > > > me how many (approx) hundreds of thousands of tons of rock American > > > > Stone excavated from the Chapel Hill quarry in the past three years. Im > > > > assuming this is reported and is PUBLIC information? > > > > Thank you, erwin danziger > > > > ----------------------------------------------- ------------------------- > > > > Subject: Thank You > > > > Date: Thu, 23 Dec 1999 14:33:29 -0500 > > > > From: Erwin Danziger <emd@ga.unc.edu> > > > > To: Tracy.Davis@ncmail.net > > > > By the way, after Christmas sometime, could you recalculate something > > > > for me? You may remember , on 11120196 when I visited with you , you > > > > were kind enough to show me how to calculate capacity in gallons of 2 of 3 1/21/2000 9:51 AM Re: HappL New Year . 0 > > > > water, for almost any mine hole. I have in your handwriting the > > > > following : 27.5 acre mine � 2,240,372,475 gallons at 250 feet depth > > > > assuming vertical walls. I believe you said one could only use 80 or > > > > 850 of that because even when fully mined out , there will be benches > > > > left; you also calculated at about 40 acres = 3,272,937,800 gallons less > > > > the above 15-20 percentage. > > > > Given that you all have now approved a pit of 36.8 acres, could you > > > > please calculate for me the storage capacity in gallons, WHEN FULLY > > > > MINED OUT, and when adjusted for the benches that must remain in > > > > place??? > > > > Given the perimeter of this quarry ,is the maximum depth 275 OR 250? > > > > I have been using the formula: acres x depth in feet x 325.9 thousands > > > > of gallons per acre foot x .85 . Is this correct?? I just want some > > > > gross approximation within 2-3 hundred million gallons. > > > > Your advice and help is greatly appreciated, Thank you and Merry > > > > Christmas!! erwin danziger Tracy E. Davis, l'.E. <Tracy.Davis lrmicniail.net> State Mining Specialist Division of Land Resources/Land Quality Section NC Deparhuent of Environment and Natural Resources 3 of 3 1/21/2000 9:51 AM Ike: Happy, New Your . 0 Subject: Re: Happy New Year Date: Fri, 21 Jan 2000 11:57:12 -0500 From: Tracy Davis <Tracy,Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Erwin Danziger <emd@ga.unc.edu> CC: Susan Edwards <Susan.Edwards@ncmail.net> Erwin, I am not sure if we have received the ARR for the 1999 calendar year yet, as deadline is not until 2/l/2000. However, once we do, Susan will either fax or mail the form. Regarding your question about the ARR map, it is our policy that if the operation underwent a formal permit action since 1/1/1999, which included providing us with an overall updated mine map, the requirements for an ARR map would be waived (to avoid receiving another copy of the same snap we already have in the file, reduce costs, an reduce unnecessary paper in the file). If AMC chooses to send us a map despite the then we will send you a copy with the ARR form. Let me know if you need further information on this issue. Thanks. Tracy Erwin Danziger wrote: > Thank you Susan, if American Stone did NOT submit an updated mine map > this year then please just send me a copy of the ARR to : > Erwin Danziger 213 Hillsborough Street Chapel Hill, N.C. 27514-3522 > Thank you, but I thought that ASC was required to send an updated mine > map, especially now that an additional 6.8 acres was permitted. > In any case , I hope you understood this request to be for the 1999 data > which is due in your office sometime this month Jan 2000. Thanks OR if > only the arr IS AVAILABLE YOU COULD FAX IT BY PHONING first AND TELLING > ME not TO PICK UP THE PHONE ON YOUR FAX CALL , tel for both voice and > fax is (919) 942-1638 thanks > > Tracy Davis wrote: > > Susan, can you make a copy of the 1999 ARR and associated map (if one is submitt > > for the American Stone Company, Chapel Hill Quarry (#68-02) and send it to Mr- * > Danziger? Mr. Danziger, can you email Susan your mailing address? Thanks. Tra > > Erwin Danziger wrote: > > > Thank you again for the info! I wonder if I could purchase a copy of the > > > new American Stone (MM) Reclamation Report for the Chapel Hill Quarry > > > which will be due in your office by the first of February , for 1999. I > > > would also like a copy of the updated Mine Map or Pit Map that > > > apparently is required to come with the Reclamation Report. If you tell > > > me how much that would cost Ill send you a check , thanks , erwin > > > danziger > > > Tracy Davis wrote: > > > > Sorry for the lateness of my reply. Several of my people have been out of t > > > > office sick, so I've had to hold down the fort on my own for the past severa > > > > days. of4 1/21/2000 12:06 PM Re: I-1dpoy,New Year 0 • > > > > Per your request, here are my estimations (based on 36.8 acres of mine > > > > excavation): > > > > 1) 36.8 acres x 43,560ft^2/1 acre = 1,603,008 sq. feet > > > > 2) volume = Area x Height = 1,603,008 sq. feet x 250 feet = 400,752,000 cub > > > > feet > > > > (this assumes that the depth will remain approx. 250 feet as originall > > > > proposed, > > > > due to haulage economics, and that the pit is just expanding lateral > > > > 3) Therefore, the maximum volume of water in a hole with a surface area of > > > > 36.8 acres, vertical pit walls (ie, no benches), and a depth of 250 > > > > = approximately 400,752,000 cubic feet of water = approximately > > > > 2,998,025,712 gallons of water = approximately 3 billion gallons of > > > > water > > > > (take 400,752,000 cu.ft. x 7.481 gallonsll cu.ft to get gallons of > > > > water) > > > > 4) As most modern quarries have several levels of benches, some of the abov > > > > volume should be deducted. As I am not familiar with this particular quarry > > > > features, as far as the size and number of benches, I cannot reasonably esti > > > > the volume of water that should be removed from the above calculations. > > > > However, assuming that 100 of the quarry's volume as determined above is tak > > > > up by benches, a more reasonable volume of water that would be held by this > > > > excavation would be: > > > > 0.10 x 2,998,025,712 gallons = 299,802,571 gallons (to be remove > > > > because > > > > of benching); therefore, removing 10-t from the volume ab > > > > would yield: > > > > 2,998,025,712 gallons - 299,802,571 gallons = > > > > 2,698,223,141 gallons > > > > or approx. 2.7 billion gallons > > > > 5) As I have noted in the past, this is a quick estimate of volume, based o > > > > the > > > > ultimate acreage and depth proposed by the mining company. The pit > > > > would have to be surveyed periodically for actual dimensions at any > > > > given > > > > time to determine a more accurate volume estimate. I am not aware i > > > > American Stone does this, what equipment they may use, or where they > > > > record/maintain this information. This office does not maintain or > > > > require > > > > permitted operators to provide such information. However, mining > > > > companies > > > > may be required to report certain information to other state and fed > > > > agencies > > > > for tax or other legal/business purposes. Some of this information > > > > be available > > > > on the Internet. 2 of 4 1 /21 /2000 12:06 I'M Re. Mppy New Yem • • > > > > I hope this has provided you with the information you requested. This is th > > > > best information I can provide on this subject. If you have further questio > > > > let me know. Thanks. > > > > Erwin Danziger wrote: > > > > > Erwin Danziger wrote: > > > > > > Happy New Year ! > > > > > > Any chance you could take a few minutes and respond to my message below? > > > > > > Also, are there any reports anywhere in any (State) dept that would show > > > > > > me how many (approx) hundreds of thousands of tons of rock American > > > > > > Stone excavated from the Chapel Hill quarry in the past three years. Im > > > > > > assuming this is reported and is PUBLIC information? > > > > > > Thank you, erwin danziger > > > > > > _________________ > > > > > > Subject: Thank You > > > > > > Date: Thu, 23 Dec 1999 14:33:29 -0500 > > > > > > From: Erwin Danziger'<ead0ga.unc.edu> > > > > > > To: Tracy.Davis@ncmail.net > > > > > > By the way, after Christmas sometime, could you recalculate something > > > > > > for me? You may remember , on 11/20/96 when I visited with you , you > > > > > > were kind enough to show me how to calculate capacity in gallons of > > > > > > water, for almost any mine hole. I have in your handwriting the > > > > > > following : 27.5 acre mine = 2,240,372,475 gallons at 250 feet depth > > > > > > assuming vertical walls. I believe you said one could only use 80 or > > > > > > 858 of that because even when fully mined out , there will be benches > > > > > > left; you also calculated at about 40 acres = 3,272,937,800 gallons less > > > > > > the above 15-20 percentage. > > > > > > Given that you all have now approved a pit of 36.8 acres, could you > > > > > > please calculate for me the storage capacity in gallons, WHEN FULLY > > > > > > MINED OUT, and when adjusted for the benches that must remain in > > > > > > place??? > > > > > > Given the perimeter of this. quarry ,is the maximum depth 275 OR 250? > > > > > > I have been using the formula: acres x depth in feet x 325.9 thousands > > > > > > of gallons per acre foot x .85 . Is this correct?? I just want some > > > > > > gross approximation within 2-3 hundred million gallons. > > > > > > Your advice and help is greatly appreciated, Thank you and Merry > > > > > > Christmas!! erwin danziger Tracy E. Davis, P.E. <Pracv.Davis@ncmail.nel> Slate Mining Specialist Division of Land Reaourcer)I.and Quality Section NC Departmeat of Fnvimomwt and Nannal Resotuvo; 3 of4 1/21/200811M I'M Rg: ase permit in orange county Subject: 4e: asc permit.in ora_ng ue coco ntyy- Date: Sat, 15 Jan 2000 18:06:33 -0500 From: "Barry Tonning" <tonniba@tetratech-ffx.com> To: "Tracy Davis" <Tracy. Davis@ncmail. net> traev thanks for the directions - they will surely help. i expect to be there shortly after lunch on thursday. after i get done with your records, I'd like to head over to the water discharge permit oft ice and look at american stone's npdcs file. (it's in archdale, too) i don't know if there's much there ... they may be operating under a general permit, with little monitoring and few site visits .... . J Barry Ton`niff-g-] Tetra Tech, Inc. Suite # 340 10306 Eaton Place Fairfax, VA 22030 703.385.6000 (VA) 606.499.0712 (KY) 1[1EITllba%rr tetratech-t1Y.coln —Original Message From: Tracy Davis <Tracy. Davis(cb ncmail.net> To: Barry Tonning <tonnibaCa?tetratech-ffx.com> Date: Friday, January 14, 2000 5:02 PM Subject: Re: asc permit in orange county Thursday, 1 /20 after lunch is fine. If you can come into town on 140, here are the directions: 140 towards Raleigh; take the Wade Ave. exit; stay on Wade Ave. - as you get closer to downtown, it will merge to the right onto Capital Blvd, (also known as Downtown Blvd.); take the Peace Street exit off.Downtown Blvd.; take a left onto Peace St. at the bottom of the exit and pass under Downtown Blvd.; you'll go under another overpass (for a railroad) and approach a stoplight at Salisbury Street, turn right onto Salisbury Street (the tall white building at this intersection is the Archdale Building, where we are located); go towards downtown on Salisbury St. approx. 3/4 of a block and you'll see a public parking deck on the right - park there and walk up to the Archdale Building. We are on the 5th floor, Room 504 (at the end of the hall where the Division of Land Resources sign is located). There is a carpeted reception area. Take a right off the reception area and my office is the first one on the left side (504N). Hope this helps. If I'm not in, keeping checking in that direction, one of us will be there to assist you. Call me if you have any questions. Thanks. Barry Tonning wrote: tracy thanks for the quick response! i would like to travel to your office on thursday, january 20, arriving sometime after noon. would that be ok? if so, let me know ... and please give me some basic directions on how to get there. are you in raleigh? thanks.==—= Barry Tonning Tetra Tech, Inc. Suite # 340 1 of 1/19/2000 546 PM Re: ase permit in orange county . 10306 Eaton Place Fairfax,. VA 22030 703,385,6000 (VA) 606.499.0712 (KY) loan ib:di�lNctratech-11 s.colu -----Original Message ---- From: Tracy Davis e-Tracy.Davis(&ncmail.net> To: Barry Tonning <ton niba(cDtetrate ch-ffx. co m> Date: Friday, January 14, 2000 2:38 PM Subject: Re: asc permit in orange county Mr, Tonning, Thank you for your email. You are welcome to come in and review the file on the American Stone Company Chapel Hill Quarry. It contains the entire history of the project and all documents are public records. I, or a member of my staff, will assist you when you arrive. Can you give us a date and time that you think you will be here (so we can be sure to have someone available to pull the file and find a location for you to sit/review it)? Thanks. Tracy Davis Barry Tonning wrote: greetings; i am working with the orange (county) water and sewer authority on a proposal to expand the american stone co. rock quarry in southern orange county, which is located near the intersection of nc 54 and nc 1104. as you may know, american stone and the owners of the current quarry property have signed an agreement to donate the expanded pit to owasa when quarrying is completed, if the project is approved by local governments and zoning changes are secured. american stone ( a division of martin marietta aggregates) has a permit from your agency, i believe, in responding to citizen concerns over their operations, i would like to review their permit and any site inspection reports that have been conducted over the past ten years. i plan to be in the raleigh area next week, and was wondering if i could stop by and review this information. i apologize for the late notice, but just finalized my plans to travel to north carolina earlier today. if you have any other relevant information on american stone's quarry on nc 54, anything whatsoever, please consider either forwarding it to me or making it available for review, thank you for your cousidcration.====_=== Barry Tonning Tetra 'Tech. Inc. 343 North Maysville St.Mt. Sterling, KY 40353606,499,0712 toms iha(rr,.tctratcch-IYx.coot 2 42 I/I9/2000 5:46 1'M Re: Happy New Year Subject: Re: Happy New Year Date: Wed, 12 Jan 2000 13:33:28 -0500 From: Erwin Danziger <emd a ga.unc.edu> To: Tracy Davis <Tracy. Davis@ncmail, net> Thanks , you are most kind, and I hope your people and you remain well erwin danziger Tracy Davis wrote: > > Sorry for the lateness of my reply. Several of my people have been out of the > office sick, so I've had to hold down the fort on my own for the past several > days. > > Per your request, here are my estimations (based on 36.8 acres of mine > excavation): > 1) 36.8 acres x 43,560ft"211 acre = 1,603,008 sq. feet > 2) Volume = Area x Height = 1,603,008 sq. feet x 250 feet = 400,752,000 cubic > feet > > (this assumes that the depth will remain approx. 250 feet as originally > proposed, > due to haulage economics, and that the pit is just expanding laterally) > > 31 Therefore, the maximum volume of water in a hole with a surface area of > 36.8 acres, vertical pit walls (ie, no benches), and a depth of 250 feet > > = approximately 400,752,000 cubic feet of water = approximately > 2,998,025,7.12 gallons of water = approximately 3 billion gallons of > water > > (take 400,752,000 cu.ft. x 7.481 gallonsfl cu.ft to get gallons of > water) > 4) As most modern quarries have several levels of benches, some of the above > volume should be deducted. As I am not familiar with this particular quarry's > features, as far as the size and number of benches, I cannot reasonably estimate > the volume of water that should be removed from the above calculations. > However, assuming that 10t of the quarry's volume as determined above is taken > up by benches, a more reasonable volume of water that would be held by this > excavation would be: > 0.10 x 2,998,025,712 gallons = 299,802,571 gallons (to be removed > because > of benching); therefore, removing 10t from the volume above > would yield: > 2,998,025,712 gallons - 299,802,571 gallons = > 2,698,223,141 gallons > or approx. 2.7 billion gallons > 5) As I have noted in the past, this is a quick estimate of volume, based on 1 oi'3 1/12/2000 3:17 PM Re: Happy Ncw Year . . > the > ultimate acreage and depth proposed by the mining company. The pit > would have to be surveyed periodically for actual dimensions at any > given > time to determine a more accurate volume estimate. I am not aware if > American Stone does this, what equipment they may use, or where they > record/maintain this information. This office does not maintain or > require > permitted operators to provide such information. However, mining > companies > may be required to report certain information to other state and federal > agencies > for tax or other legal/business purposes. Some of this information may > be available > on the Internet. > I hope this has provided you with the information you requested. This is the > best information I can provide on this subject. if you have further questions, > let me know. Thanks. > Erwin Danziger wrote: > > Erwin Danziger wrote: > > > Happy New Year ! > > > Any chance you could take a few minutes and respond to my message below? > > > Also, are there any reports anywhere in any (State) dept that would show > > > me how many (approx) hundreds of thousands of tons of rock American > > > Stone excavated from the Chapel Hill quarry in the past three years. Im > > > assuming this is reported and is PUBLIC information? > > > Thank you, erwin danziger > > > Subject: Thank You > > > Date: Thu, 23 Dec 1999 14:33:29 -0500 > > > From: Erwin Danziger <emd@ga.unc.edu> > > > To: Tracy.Davis@ncmail.net > > > .By the way, after Christmas sometime, could you recalculate something > > > for me? You may remember , on 11120196 when I visited with you , you > > > were kind enough to show me how to calculate capacity in gallons of > > > water, for almost any mine hole. I have in your handwriting the > > > following : 27.5 acre mine = 2,240,372,475 gallons at 250 feet depth > > > assuming vertical walls. I believe you said one could only use 80 or > > > 850 of that because even when fully mined out , there will be benches > > > left; you also calculated at about 40 acres = 3,272,937,800 gallons .less > > > the above 15-20 percentage. > > > Given that you all have now approved a pit of 36.8 acres, could you > > > please calculate for me the storage capacity in gallons, WHEN FULLY > > > MINED OUT, and when adjusted for the benches that must remain in > > > place??? > > > Given the perimeter of this quarry ,is the maximum depth 275 OR 250? 2 of 3 1/12/2000 117 PM Re: Happy NU%v Year 0 u 3 of 3 > > > I have been using the formula: acres x depth in feet x 325.9 thousands > > > of gallons per acre foot x .85 . is this correct?? I just want some > > > gross approximation within 2-3 hundred million gallons. > > > Your advice and help is greatly appreciated, Thank you and Merry > > > Christmas!! erwin danziger 1 / 12/2000 3:17 I'M Re: Happy New• Year . Subject: Re: Happy New Year Date: Tue, 11 Jan 2000 19:24:07 -0500 From: Tracy Davis <Tracy,Davis@ncmail.net> Organization: NCDENR - Land Quality Section To: Erwin Danziger <ernd@ga.unc.edu> Sorry for the lateness of my reply. Several of my people have been out of the office sick, so I've had to hold down the fort on my own for the past several days. Per your request, here are my estimations (based on 36.8 acres of mine excavation): 1) 36.8 acres x 43,560ft^2/1 acre = 1,603,008 sq. feet 2) volume = Area x Height = 1,603,008 sq. feet x 250 feet = 400,752,000 cubic feet (this assumes that the depth will remain approx. 250 feet as originally proposed, due to haulage economics, and that the pit is just expanding laterally) 3) Therefore, the maximum volume of water in a hole with a surface area of 36.8 acres, vertical pit walls (ie, no benches), and a depth of 250 feet = approximately 400,752,000 cubic feet of water = approximately 2,998,025,712 gallons of water = approximately 3 billion gallons of water (take 400,752,000 cu.ft. x 7.481 gallons/1 cu.ft to get gallons of water) 4) As most modern quarries have several levels of benches, some of the above volume should be deducted. As I am not familiar with this particular quarry's features, as far as the size and number of benches, I cannot reasonably estimate the volume of water that should be removed from the above calculations. However, assuming that 10% of the quarry's volume as determined above is taken up by benches, a more reasonable volume of water that would be held by this excavation would be: 0.10 x 2,998,025,712 gallons = 299,802,571 gallons (to be removed because of benching); therefore, removing 10% from the volume above would yield: 2,996,025,712 gallons -- 299,802,571 gallons = 2,698,223,141 gallons or approx. 2.7 billion gallons 5) As I have noted in the past, this is a quick estimate of volume, based on the given ultimate acreage and depth proposed by the mining company. The pit would have to be surveyed periodically for actual dimensions at any time to determine a more accurate volume estimate. I am not aware if American Stone does this, what equipment they may use, or where they record/maintain this information. This office does not maintain or I oi'3 1/11/2000 7:24 PM Re: Happy New Year 0 1 ] require permitted operators to provide such information. However, mining companies may be required to report certain information to other state and federal agencies for tax or other legal/business purposes. Some of this information may be available on the Internet. I hope this has provided you with the information you requested. This is the best information I can provide on this subject. If you have further questions, let me know. Thanks. Erwin Danziger wrote: > Erwin Danziger wrote: > > Happy New Year ! > > Any chance you could take a few minutes and respond to my message below? > > Also, are there any reports anywhere in any (State} dept that would show > > me how many (approx) hundreds of thousands of tons of rock American > > Stone excavated from the Chapel Hill quarry in the past three years. Im > > assuming this is reported and is PUBLIC information? > > Thank you, erwin danziger > > --------------------------------------------------------------------------- > > Subject: Thank You > > Date: Thu, 23 Dec 1999 14:33:29 -0500 > > From: Erwin Danziger <emd@ga.unc.edu> > > To: Tracy.Davis@ncmail.net > > By the way, after Christmas sometime, could you recalculate something > > for me? You may remember , on 11/20/96 when I visited with you , you > > were kind enough to show me how to calculate capacity in gallons of > > water, for almost any mine hole. I have in your handwriting the > > following : 27.5 acre mine = 2,240,372,475 gallons at 250 feet depth > > assuming vertical walls. I believe you said one could only use 80 or > > 850 of that because even when fully mined out , there will be benches > > left; you also calculated at about 40 acres = 3,272,937,800 gallons less > > the above 15-20 percentage. > > Given that you all have now approved a pit of 36.8 acres, could you > > please calculate for me the storage capacity in gallons, WHEN FULLY > > MINED OUT, and when adjusted for the benches that must remain in > > place??? > > Given the perimeter of this quarry ,is the maximum depth 275 OR 250? > > I have been using the formula: acres x depth in feet x 325.9 thousands > > of gallons per acre foot x .85 . is this correct?? I just want some > > gross approximation within 2-3 hundred million gallons. > > Your advice and help is greatly appreciated, Thank you and Merry 2 o1'3 1/11/2000 7:24 PM Re: Happy New Year 0 0 > > Christmas!! erwin danziger Tracy E. Davis, P.E. <Trac, .Davis u:ncmaiI.net> State Mining Specialist Division of Land Resources/Land Quality Section NC Departrncnt of Enviromnent and Natural Resources 3 o1'3 1/1 1/2000 7:24 PM American Stone Co.,- Chapel I Iill Quarry (6M2) 0 Subject: American Stone Co. - Chapel Hill Quarry (68-02) Date: Wed, 22 Dec 1999 19.05.02 -0500 From: Tracy Davis <Tracy. Davis@ncmail. net> Organization: NCDENR - Land Quality Section To: emd@ga.une.edu Mr. Danziger, I apologize for not responding to your fax earlier...it's been extremely/unusually busy the past several weeks. I have quickly reviewed the mine map for this site and it appears that the lowest edge of the top of the pit (where the final lake is proposed to discharge into Phil's Creek)'is at the 468 foot contour. Please note that this is just an approximation and could change if mining plans are adjusted, modifications are issued in the future, etc. Rather than our office holding the company to a specific location for the permanent overflow of the final lake (created by the quarry excavation), our requirement is that the overflow, wherever it may be located, must be permanently stabilized to prevent erosion at the overflow (and immediately downstream) and prevent offsite sedimentation. This is the best answer I can give you at this time. I hope this helps. Thank you and have a Merry Christmas! Tracy Tracy E. Davis, RE. <Tracy.Davis@.ncmail,net> Slate Mining Specialist Division of Land Resources/Land Quality Section NC Department of Environment and Natural Resources I of 1 12/22/1999 7:06 PM FAQ rnANS l;s[oJ Dwrs� �e� is 1449 't-O : [aAcl C . bAvis I P� FRy too: Lgl97co L, ANc QUA L1T"i{ $c GTI CJ� N e DL:P f�oM; kRW�u� �nN2L1Gb� gp�y,FS•s: a-[3 !-l;its6ead��h st-2.ef- CF4gPtl IJ. C. Z-7SLy -3s 2 z L:-ma%' = ecv% tjoriia - aF Paget ctNcl�j . , Cour.Yi ,• 1 C.o [v% ff% a nos 0\ \DQP!s �uPs�ea �F II. ANt`- UbU rOY �b�Q1 JPSi"[OnI i e O Y :\ N obo9 N o 4LeAl:wg w[Tl, rk e H;11 Qunnn { yry dyes a^e �e'lt`N3 so old � 1 c.aN uod- ro[Ake oui C1 e Sell NJmb�ces �Se� f»z ^�o. toua�(,�es. (5 is -Do feel lip°— Qe T� roF c �;+k °P �1 cJ Feef ? I� �fh �b^ds� p� l.t e\ gljo ui*)teen. world '�i- ovenPl�w, i�' •,�- we2e �U n aJk �� emA`L oz Fwx fLcSpa✓ se Q �nf;�;n'�ad � h^C°'�•,�ANr4 iGcn. ��. [O'd 8£9S-Zb6 6i6 aa6�zue❑ d64=5 66-St -aap WDEWR;L; �1Y DAMES S. HUNTJR.' 't GOVERNOR{nl, u .+WAYMEkMCDEVITT.� :_A SECRETARY�h �yt.- M NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES November 29, 1999 Mr. Erwin Danziger 213 Hillsborough Street Chapel Hill, North Carolina 27514 Dear Mr. Danziger. Thank you for your November 16, 1999 letter in which you requested clarification on the definition and use of the term "disturbed land" with respect to mining operations permitted by this office. "Disturbed land", also known as "Affected land", are areas within the mining permit boundary where the land surface is exposed by man-made activities. G.S. 74-49(1 ) of the Mining Act of 1971 states: ' "Affected land" means the surface area of land that is mined, the surface area of land associated with a mining activity so that soil is exposed to accelerated erosion, the surface area of land on which overburden and waste is deposited, and the surface area of land used for processing or treatment plant, stockpiles, nonpublic roads, and settling ponds.' As you can see, "affected land" would include any areas cleared and grubbed for the purposes of exposing the surface soil to conduct mining -related activities. This includes the mine excavation itself, erosion and sedimentation control measures, earthen berms, temporary scrap metal storage areas, plant area, shop and office areas, scales, roadways, tailings ponds, equipment storage areas, and any other activity on the site that is directly related to the mining operation. L,AND QUALITY SECTION (919) 733.4574 FAX (9191 733-2876 GEOLOGICAL SURVEY SECTION 1919) 733-2423 FAX (919) 733•0900 p,0. BOX 27687, RALEIGH• NORTH CAROLiNA 27611-7687 TELEPHONE 19191 733-3933 FAX (9191 715-8801 AN EQUAL OPPORTUNITY IAi41RMATIVE ACTION EMPLOYER - 50% Rtc'CYCLCD/10% POST -CONSUMER PAPER S Page 2 Again, thank you for your letter. If you should have any further questions, please contact me at (919) 733-4574. Sincerely, Tracy E. Davis, P.E. State Mining Specialist Land Quality Section /td cc: Mr. John Holley, P.E. (w/copy of 1 1 /16/99 letter) 213 Hillsborough Street Chapel Hill, NC 27514 November 16, 1999 Tracy E. Davis, P.E. Mining Specialist —Land Quality Section E Division of Land ResourcesNsDENRR 0. Box 27687Raleigh, NC, 27611-7687 Dear Mr. Davis:_— Please help me understand some terminology that is used in various mining reports. Just precisely what is meant by a) "disturbed" areas? b) "disturbed and unreclaimed" land? I refer you to three places where 1 have seen these words: 1) your Annual Reclamation Report form, item 4, including the "note' at the bottom of the page. 2) Your letter of July 17, 1998, to Steve Whitt, Martin Marietta, regarding Permit # 68-02 see last sentence of first page. 3) Steve Whitt's letter to you, dated April 29, 1998, see first paragraph. It appears to me that "disturbed areas' probably include the mine pit excavation itself plus the berms. Is that correct? Or are some other areas also included in "disturbed" , such as waste piles, tailing ponds, stock piles, etc.? Your detailed explanation of what's included and what's excluded would be greatly appreciated. Thank you! Erwin Danziger_ 7S �' ' Fefi-23-99 04:27P Da ger- 91:942-1638 P.01 c `4 � � _ � .s rrn I kr g Spec , ra L t 's+ 00 40 t A be. ma's : ► 3 r ��..J, i�, Co uc�- r co t Pin Au +q �- R ID At s� a _ � I I -n",Kjv IMPORTANT _. WHLLL�/YVU WERE OUT ,,/yy/�� e1C 'l I //o Phone Rq Z — /i0 J /J —'feul��Qii�Dlfbivme�m.�.i �...,..�e., TELEPHONED PLEA CALL r CALLEU TO SEE YOU WILL CALL AGAIN WANTS TO SEE YOU .URGENT._.. tRETURNED YOUR CALL .Y t N,C•,Dept:, of nvnonment, and Natural Resou es Yr 1• . -o � r 7 1147- L x ,Ij ag 6't-61 r, i .1bl2V1l e NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES February 19, 1999 Mr. Erwin Danziger 213 Hillsborough Street Chapel Hill, North Carolina 27514-3522 RE: Mining Permit N - 68-02 Chapel Hill Quarry Orange County Cape Fear River Basin Dear Mr. Danziger: Thank you for your February 9, 1999 letter in which you requested information regarding the above referenced mining operation. Per your request, enclosed are copies of the following documents: 1 . Annual Reclamation Report and corresponding map received by this office on February 2, 1999; 2. Mining Permit No. 68-02 that was last modified on July 17, 1999; 3. 401 Water Quality Certification issued June 5, 1998 and Section 404 Corps of Engineers Permit issued May 21, 1998; and 4. Mining Permit Modification Request (including color copies of the maps and the supplemental information submitted during the review process) that correlates to the modification issued on July 17, 1999. LAND QUALITY SECTION (919) 733.4574 FAX (919) 733-2876 GEOLOGICAL SURVEY SECTION IS19) 733-2423 FAX (919) 733-0900 F.O. Box 27687, RALEICH, NORTH CAROLINA 2761 1 -7687 TELEPHONE (919) 733-3833 FAX (919) 715.680I AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLEDII Oq POST -CONSUMER PAPER Page 2 The above information should address all of the items mentioned in your February 91h letter. If you should have any questions on the above, please contact this office at (919) 733-4574 and ask for me, Ms. Judy Wehner or Mr. Tony Sample. Sincerely, Tracy E. avis, P.E. State Mining Specialist Land Quality Section /td Enclosures cc: Mr. John Holley, P.E. Mr. Tony Sample, C.P.E.S.C. Ms. Judy Wehner gte���t�* , �evprifled �i,� ,A2e� ? aNc' urwh Th'� vc.,emse W eZok eA- A Cab SrT A $'mA\c P)'X% Gee eK , 1 � s"a rdra s qa� Li ( u S ed c rL w MS fa r\eL.�j ;,Jo( I' ec I^oti 40V2 ,tNF"flo-MAI�ID.J 1 Looald �9J��1F, r]�a�'�T "I nose M ;ce urn (ORS/ m- eJPN y ✓cnePiae, pF -7it.. C, n �ep4r a.o a 40�� 2 So' ro 3oa� 6E IOU L0Lo h%tcw d-T�c C1JRA@�F QJ,4 'ts 1 A� ij�A de�,�Pli rpOrN ro6N .� t) t wl�'A�'81GL. £O'G SE9L-Zb6 6i6 .O6y ZUWU tl9I:i0 66-60-qad 1 F'A� -inaNSm�s�tMl �`� aartc f cb 4 , ,99 T -YO: `T2Acy i�6av,5, tn,t"t�Q 5(Ec-R��S' rPY. 33-G LpNh NC be)42 !^EOM: kRW�� bnrJLZLGLi� C94tk-2-Iraag Ao>anasS: z'3 FtiRSbeitaysh irn-*tF cNR'Pr1„ Fi�L�, N, c . Z-rSr� -3S 2'L E-Ma.1� emaQ Q0.. uNC, eav IduA4/- UF Poke:Ctwcl��,.,71„s co n. M e, 4-s c I �1e �je�� ('iepae �Qip me .i e T ta�Fvyc e A 12 a e•s4-s �tJIL �ou� ;' 4I 666160 83� ��QQ�II i0"d 8£9t-2b6 616 .aa6LzUWO d9t:tO 66-SO-gftd • [y)OP(R) NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIv Iq ION OF LAND RES DURESS May 12, 1998 Y.Nue. N.,N.•,. Mr. Erwin Danziger 213 Hillsborough Street Chapel Hill, North Carolina 27514 RE. American Stone Company Chapel Hill Quarry Mimng Perntit No 68-02 Orange County ^ Derr 1 ; tiFL3sp+. ' Cape Fear River Basin S: ; ;.. � k .� s; ! Dear Mr. Danziger'. I have received copies of your letter and Assistant Secretary Bill Holman's i ,i, recent response regarding the above referenced site. 1 have been asked to determine whether this mining operation is currently in compliance with Mining Permit No. 68-02, the Mining Act of 1971 and the North Carolina Administrative ' }Sl+T-A Code on Mining. A files indicates that the site is in the terns review of our compliance with ' < IS- and conditions of Mining Permit No. 68-02. The inspector, Ms. Debbie Fuquay of • `'';+•F the Land Quality Section's Raleigh Regional Office, indicated in her July 9, 1997 Mine Inspection Report that the "site looks fine - no problems noted. Continue to monitor and maintain sediment control as needed." Ms. Fuquay will be conducting inspection in a this year's annual of the site within the neat couple of weeks, ' ' 1 conjunction with the review of a pending mining ' 8 Permit modification request. >� ' y •'' _ Thank you for your interest in this matter. if you should have any t-^,.d questions on the above, please contact me at (919) 733-3833- -. a t?-:• :�;ae# Sincerely, A Charles H. Gardner, P.G., P.E. x }F'ri8 CHGnd cc: Assistant Secretary Bill Holman Mr. Preston Howard, P.E. x .pia Mr. Tracy Davis, P.E, Mr. John Holley, RE Ms. Debbie Fuquay i rT'owury �� i "NO [mr an nln>aa-ass PAX tflar>!s[vs aa0[VV,u[suav[v '✓fe[. Ny.y�• •-l� 1[cnex IY191>ia.aaaa Fd%fMal va!-e[00 . •1GT'y P.0. 90F Fa,+1e1>la.f[e, a!>>[L[INe%* 9QUAL P4 R7UMlTVi"CaRoaM.3>[,1U MCI>ia-Da!! AN {eurt OIbRi VNItY l s/IRNAi1V[ /,GiION C W.OY[R � a0$ Rleefe[OII O>j rotPCON W uu .o[w VD'd RE91-ZVE 616 .aaB}zueo d91;10 66-60-qad PLO (nSt SeN A�� � Pie u/L [-ONVe,✓,eNC � An owe c ry oil 7t ti.uaL ReCl.K1b1X%V%ua {Z�p 1 �ya.�u�n@� 1, 6S 74-S -tom C ,fie\ WNW k rn,N e�V PeMM�1 (0s -2 G �J na Rrr�eti\CFan ylarC Cpnr(AVc( �niDUJ MANCL oH^ Nl\pi kii q z� etepo e- A, 5n -7% L,4t) - y. ..twa_ lt• oNe dArtQ� �j31�4� J� �1 i [n P;'h efp��s o,J P.tiem" -Uiv wps M,7T4 A. �-- -kl WlkO-6Q s� rQ%,0n4r uLPM- u)bJ\L "n •eCtixt� ne C'QN,N�+ D�f1� �ePSC SeN L\ me We LL5�gjv \T" CS \IAA U � 3. PI ePN e yen -114� curl, P � Cep A,,ta, sl r2(98 seNTe� ee ;Z) -T--Q 5accn0ia pAnA A • ry\O �� f' <c tn�`o..� � �.seg� ., y W d�-J `�:�i s � t�+EA�• 20"d 9£9i-2b6 fii6 .aaB�zuep d9L=L0 6fi-60-9ed Martin Marietta agregates P.O. Box 30013 Raleigh, North Carolina 27622-0013 Telephone: (919) 781-4550 July 23, 1998 Mr. Tracy E. Davis, P.E. Mining Specialist Division of Environmental Management P. O. Box 27687 Raleigh, NC 27611 Subject: Additional information Chapel Mill Quarry - Mine Permit-#68-02 Orange County �` Dear Mr. Davis: JUL 2 71998 Enclosed please find copies of several items that have been requested by your office. These items are related to the recent Mine Pen -nit modification issued for Chapel Hill Quarry. The items are: 1. The 401 Water Quality Certification issued June 5, 1998 2. The Section 404 Corps of Engineers Permit issued May 21, 1998. Please include this information in the file for this facility. Sincerely, 1 c_' Steve Whitt, P.E. Manager, Environmental Services pEC EC VE U.S. ARMY CORPS OF ENGIN R& 271998 D WILMINGTON DISTRICT Action 1D. 199820729 CountyOrange GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner/Agent Martin Marietta Aggregates Division of Martin Marietta Material Inc c/o Mr. Steve Whitt Address Post Office Box 30013, Raleigh. North Carolina 27622 Telephone No. 336 786-2680 Size and Location of project (waterway, road name/number, town, etc.) American Stone quarry operation located off of NC 54. adjacent to Phils Creek. west Chaoel Hill. in Orange County, North Carolina. Description of Activity Expansion of existing qua operation including the relocation of a draina`e way tesultne in approximately 0.0825 acres of jurisdictional waters of an unnamed and above headwaters tributary of Phils Creek. XSection 404 (Clean Water Act, 33 USC 1344) only. _Section 10 (River and Harbor Act of 1899) only. _Section 404 and Section 10. NWP 26 Regional General Permit or Nationwide Permit Number. Any violation of the conditions of the Regional General or Nationwide Permit referenced above may subject the permittee to a stop work order, a restoration order, and/or appropriate legal action. This Department of the Army Regional General/Nationwide Permit verification does not relieve the undersigned permittee of the responsibility to obtain any other required Federal, State, or local approvals/permits. The permittee may need to contact appropriate State and local agencies before beginning work. By signature below, the permittee certifies an understanding and acceptance of all terms and conditions of this permit. /,/ Regulatory Project Manager Signature /,M,,F/ Date May 21. 1998 apiration Date December 16, 1998 SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORM, ETC., MUST BE ATTACHED TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAILABLE. State of North Carolina Department of Environment and Natural Resources Division of Water Quality N C D EN R James B. Hunt, Jr., Governor Wayne McDevitt, Secretary NORTH CAROLINA DEPARTMENT OF A. Preston Howard, Jr., P.E., Director ENVIRONMENT AND NATURAL RESOURCES Junes, 1998 Orange County DWQ Project a 980356 APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS Mr. Steve Whin Marlin -Mancha Aggregates PO Box 30013 Raleigh, NC 27622-0013 Dear Mr. Whitt: You have our approval, in accordance with the attached conditions and those listed below, to place Fill natural 10 900 feet of streams for the purpose of expanding a quarry at Chapel Hill Quarry, as you described in your application dated April 17,1999. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 3108. This certification allows you to use Nationwide Permit Number 26 when the Corps of Engineers issues il. In addition. you slmuld get any other federal, state or local pemshs before you go ahead with your project including (but not limited to) Sediment and Erosion Cornml, Coastal Stormwism. Non -Discharge and Water Supply Watershed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Cenification. This approval is only valid for the purpose and design that you described in your application except as modified below. If you change your project, you must notify "and to send us a new application. If the property is sold. the new owner must be given a copy of this Cenification and approval letter and is thereby responsible for complying with all conditions. if total weiland fills for this projccl (now Orin the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the atached certification and any additional conditions listed below. I. Written approval from DWQ is required for the scream relocation plan which shall reproduce existing stream geomorphology. A maaobcndmic-monitoring plan shall also be included. If there is a net loss of sucam length, compensatory mitigation at a 1:1 ratio will be required. Applicant shall notify DWQ of the net sucam length after the final sucam location design. If you de not accept any of the conditions of this ceni5cation, you may ask for an adjudicatary hearing. You must act within 60 days of din date that you receive this letter To ask for a hearing, send a written position which component to Chapter 150E of the North Carolina General Statutes to the Office of Administrative Headings, P.O. Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask for a homing. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone Jahn Donny at 919-733-1786. Pon Haw Attachment cc; Wilmington District Corps of Engineers Corps of Engineers Raleigh Field Office Raleigh DWQ Regional Office John Dorsey Central Files 980356.Iu Division of Water Quality • Non -Discharge Branch 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX If 733.9959 An Equal Opportunity Affirmative Action Employer• 50% recycled/1 0% post consumer paper GENERAL CERTIFICATION FOR PROJECTS ELIGIBLE FOR CORPS OF ENGINEERS NATIONWIDE PERMIT NUMBER 26 (HEADWATERS AND ISOLATED WETLANDS) This General Certification is issued in conformity with the requirements of Section 401, Public Laws 92-500 and 95-217 of the Ur__te:d States and subject to the North Carolina Division of water Quality Regulations in 15A NCAC 2..4, Section .0500 and 15A NCAC 23 .02nn for the discharge of fill material to waters and adjacent we_iand areas which are above the headwaters or to wetland areas that are not a part of the surface tributary system to interstate waters or %avigatle waters 'of the United States (i.e., 'isolated Wetlands) as described in 33 C_R 330 Appendix A (E) (26) of the Corps of Engineers reg,41ations (i.e. Nationwide Permit No. 25) . This Certification water Quality Certification. Number 2671 issued on danua= , 1992. This WQC is rescinded when. the Corps of Engineers reauthorizes Nac_on'r:_Ca 25 Cr where deemed appropriate by the Director of M,'ti The State of North Carolina certifies that the specified ca egc_ y c- tv •r.'11_ :lot "+ C_c_- awv_1Ccbl? pCr=2?n S of SZCt10n5 30., 30=, _ 3_-6 and 307 of the �-rvvnl.c Ms 92-500 and 95-217 if conducted in m-„_._ nce with the cnnd___t, s her-2_n alter set fort. Conditions of Certification: . Proposed fill or substantial modification of greate_ ___an one-third acre (0.135 ha) of wetlands or waters for a project requires _ .:ri:ze n concurrence from the Divis...... water Quality; Proposed :ill or substantial modification of equal to or less then one-third acre (0.135 hat of wetlands for a project does not require written concurrence from the Znivisicn of Water Quality as long as the project is in .compliance with all conditions of this General Certification; Propmed fill Cr substantial modification of any amount of wetlands classified in accordance with 15A NCAC 2E .0101 :e) (7) as Unique Wetlands (UWTL) shall require wrote- concurrence _rum the Division of Water Quality in accordance - =h 13A NCAC 2H .0506 (e) ; 4. Proposed rill or substantial modification of greater than 150 }inea.. feet (45.7 m) of screams For a project req' i es a written concurrence with the Division of Water Quality. For the purpose of this Certification, streams are defined as blue or purple lines for permanent or intermittent strums as shown on the most recent version of the USGS 1:24,000 topographic :.yap or of her site -specific data; 5. Proposed fill or substantial modification of less than or aqua'_ to 150 linear feet (45.7 m) of streams for a project does not re %ire a written concurrence from the Division of Water Quality as long as the project is in compliance with all conditions of this General Certification. For the purpose of this Certification, streams are defined as blue or purple lines for permanent or intermittent streams as shown on the most recent version of the USGS 1:24,000 topographic map or other site -specific data; .,. That appropriate sediment and erosion control practices which equal or exceed those outlined in the most recent edition of the "North Carolina Sediment and Erosion Control Punning and Design Manual' or the "North Carolina Surface Mining Manual'' (available from the Division of Land Resources in the DE.NuR Regional or Central offices) must be utilized to prevent exceedances of the appropriate turbidity water quality standard (50 NTUs in streams and rivers not designated as trout waters by DWQ; 25 NTUs in all saltwater classes, and all lakes and reservoirs; 10 NTUs in trout waters) ; E All sediment and erosion control measures placed in wetlands and waters shall be removed and the natural grade restored after the Division of Land 'Resources has released the project; S. Additional site -specific conditions may be added to projects with greater than cne-third acre impact to wetlands or 150 linear feet of screa:'ns -which are proposed under this Certification in order to ensure compliance with all applicable water C"aalicy and effluent standards; o. Messures shall be :aken tc prevent live cr fresh ccncret_ f:cm coming into ccnract t+1_ti waters of :he sza:e until the concrete has hardened; iC.. if an environmental doc:z­�, e_._ is required, 4h is Certification is nct valid until a wCNS` cr ROD is issi__d by the State Clearinghouse; Concurrence from DWQ that v.._s Certification applies to an individual project shall expire on 11 DeC em er loot to Coincide with the expira:_..n dace of Na__Cn ide Permit 26. licit-comnp_ianCe with or ._flat__n of the conditions herein set f-_:h by a specific fill project shall result in revocation of this Ce_tif_ca:ion for the project and may also result in, criminal and/or __ pera_ties. The Director of the Nor h Carolina Division. of Water Quality may require s-r.bmission of a formal application for individual certification for any project in this category of activity, if is is dwermineb chat the project is likely to have a significant adverse effect upcn water quality or degrade the waters so that existing uses of the wetland or downstream waters are precluded. P:bl_c hearings may be held for specific appl Oaticns or group.o- applications prior to a Certification decision if deemed in the pubi i C s best interest by the Di_ ..__.. of the Ric: _h Carolina Di vision of Environmental Management. Ef:.eccive date: 11 Fel:ruary 1997. DIVISION F WATER UALITY BV A. Preston - jr. P.E. Director cencert.26 C 0S C^7'^%1'�'L1�� I $£vi_Mb bib �L6'A }// y� y lE • NORTH �iO LINA DEPARTMENT OF ENVIRONMENT �O NATURAL RESOURCES DIVISION OF LAND RESOURCES CO: FAX COVER SHEET FAX #: M qLtL 'ilia FROM: f6*44 tws CO: FAX 4" (Q1Q) 719-RRn1 - RE: � eL NO. OF PAGES (including cover sheet) It you experience difficulty receiving this message - caJt - (919) 733-3833, Administrabon, Division of Land Resources. LAND III SCCTIOv 019)733-4574 FAX 19191133-24176 BEOLOCICAL SUAVE' SEolory (9191733.2423 FAX IS t 01733.0900 F.O. BOX 27667, A LEI A", NORTH CAnOLI'A 27611.76e7 TCLEanOnE a19) 733.3933 ♦, EQUAL OrvmTOrvvv / AFn"AT'le Acimry Euewv[n - SO% R2aC"0/1 O% OOST CO13U NICE FAICI DIVISION OF LAND RESOURCE July 7, 1998 MEMORANDO TO: Tony Sample, Asst. Mining Speciali FROM: Tim Holland, Asst. Regional. Engine THROUGH: John Holley, Jr., Regional. Engi RE: Chapel Hill Quarry 68-02 Orange Co. I have reviewed the additional information submitted for the permit modification request for the subject mine. The additional info appears adequate. JUL 3 j 1998 Martin Marietta fogregates P.O. Box 30013 Raleigh, North Carolina 27622-0013 Telephone: (919) 781-4550 June 10, 1998 Mr. Tony Sample Land Quality Section Division of Land Resources P.O. Box 27687 Raleigh, NC 27611 Subject: Additional Requested Information Mine Permit Modification Chapel Hill Quarry — Permit #68-02 Dear Mr. Sample: I sent a package of information to you dated June 8, 1998 and omitted an item that was referenced in the letter. This submittal contained additional information that you needed in order to complete your review of the above referenced mine permit modification. This additional information is the calculation sheets for the sediment basins shown on the plans. Based on a comment by the regional office, you had requested that we show calculations supporting the spillway sizes for the 25-year storm. As noted in the cover letter dated June 8, 1998, the spillways are adequate for the storm event. Please include this information with the other items previously submitted. Since ely, Steve Whitt, P.E. Environmental Engineer SEDIMENT BASIN SCHEDULE MARTIN MARIETTA MATERIALS, Inc. 06/05/99 Chapel'[ [ill Quarry Basin Drainage Area Sediment Basin Dimensions Weir Dimensions No. (Acres) Storage - fl 3 L' x W' x D' Top Width x Bourn Width Lip to I 1.8 3,240 42 'L x 21 'W x 4 ' D 12 ' x 6 ' up to 2 0.9 1,620 30 'L x 15 'W x 4'D 10' x 4' up to 3 0.7 1,278 26 'L x 13 'W x 4 ' D 10' x 4' up to 4 0.8 1,404 28 'L x 14 'W x 4 ' D 10' x 4' up to 5 0.4 774 20 'L x 10 'W x 4'D 10' x 4' up to 6 1.7 2,988 40 'I, x 20 'W x 4 'D 12 ' x 6 ' up to 7 1.0 1,729 30 'L x 15 'W x 4 ' D 10 ' x 4 ' up to 8 1.6 2,898 40 'L x 20 'W x 4 'D l2 ' x 6 ' up to 9 1.1 1,962 32 'L x 16 'W x 4 ' D 12 ' x 6 ' up to 10 1.3 1 2,250 1 34 'L x 17 'W x 4 ' D 12 ' x 6 ' Notes: 1) Sediment traps are sized for the total drainage area with l clean -out per year. 2) Weir dimensions are minimum requirements from NCFSCPDM (Table 6.60a). Sediment Storage Capacity in Months: 12 Months Sediment Volume per Acre per Year: 1 1,800 Cubic Fect Martin Marietta Materials, Inc. Chapel 1101 Quarry Sheet: 2 of I 1 June 5, 1998 C] • SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN No.] Sediment Storage Volume = 1,800 Cubic ft /Acre Drainage Area = 1.8 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 3,240 Cubic Ft. Use Sediment Basin Dimensions of. 42 'L x 2 [ 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed F During passage of 10 Yr. Storm Weir Equation: Q= CwL H1.5 Q = 6.5 cfs (From Flow Calculations) Cw = 3 (Broadcrested Weir) H = I Ft. (Max. Flow Depth) Q L= CwFILfey= 2.16 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) SE•DIMI3NT BASIN No.2 Sediment Storage Volume = 1,800 Cubic ft /Acre Drainage Area = 0.9 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,620 Cubic Ft. Use Sediment Basin Dimensions of: 30 'L x 15 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q = CwLH'-s Q = 3.2 cfs (From Diversion Ditch Cales.) CW, = 3 (Broadcrested Weir) H = I Ft. (Max. Flow Depth) Q L = CJ-11.5 Lfeq = 1.08 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 3 of 11 June 5, 1998 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN No.3 Scdimcnt Storage Volume = 1,900 Cuhic fl /Acre Drainage Area = 0.71 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,278 Cubic Ft. Use Sediment Basin Dimensions of: 26 'L x 13 'W x 4 ' D Snillway Design:: Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q = CWLH"' Q = 2.6 cfs (From Flow Calculations) Cw = 3 (Broadcrested Weir) H = l Ft. (Max. Flow Depth) Q L= CWHT.5 L,,q= 0.85 Ft. Use Mininnlum Weir Length of 4 (NCESCPDM) SEDIMENT BASIN No.4 Sediment Storage Volume = 1,800 Cubic ft /Acre Drainage Area = 0.78 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,404 Cubic Ft. Use Sediment Basin Dimensions of: 28 'L x 14 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q = CwLH"' Q= 2.8 cfs (From Diversion Ditch Cales.) Cw = 3 (Broadcrested Weir) H = 1 Ft. (Max. Flow Depth) Q L = CH 1.5 Lf,= 0.94 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 4 of l 1 June 5, 1998 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN Sediment Storage Volume = Drainage Area = 1,800 Cubic ft /Acre 0.43 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 774 Cubic Ft. Use Sediment Basin Dimensions of: 20 'L x 10 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed 1' During passage of 10 Yr. Storm Weir Equation: Q = CWLH1.5 Q = 1.5 cfs (From Flow Calculations) C, = 3 (Broadcrested Weir) H = 1 Ft. (Max. Flow Depth) Q L= CWH1.5 Lreq= 0.52 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) SEDIMENT BASIN No.6 Sediment Storage Volume = Drainage Area = 1,800 Cubic ft/Acre 1.66 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 2,988 Cubic Ft. Use Sediment Basin Dimensions of: 40 'L x 20 'W x 41 D Spillway Design: Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q = CWLH1.5 Q = 6.0 cfs (From Diversion Ditch Cates.) CW = 3 (Broadcrested Weir) 1-1 = 1 Ft. (Max. Flow Depth) Q L = Cu,H1.5 Lfeq,= 1.99 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 5 of 11 June 5, 1998 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN No. 7 Sediment Storage Volume= Drainage Area = 1,800 Cubic ft /Acre 0.96 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,728 Cubic Ft. Use Sediment Basin Dimensions of: 30 'L x 15 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q = CwLH'" Q = 3.5 cfs (From Flow Calculations) C,y = 3 (Broadcrested Weir) H = 1 Ft. (Max. Flow Depth) Q L = CwH1"5 L,eq= 1.15 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) SEDIMENT BASIN No.8 Sediment Storage Volume = Drainage Area = 1,800 Cubic ft /Acre 1.61 Acres Rcquircd Volume = Sediment Storage Volume x Drainage Area Required Volume = 2,898 Cubic Ft. Use Sediment Basin Dimensions of: 40 'L x 20 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed 1' During passage of 10 Yr. Storm Weir Equation: Q = CwLH3" Q = 1.6 cfs (From Diversion Ditch Calcs.) Cw = 3 (BTOadcrestcd Weir) H = 1 Ft. (Max. Flow Depth) Q L = Cji L�eq= 0.54 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 6 of 1 I June 5, 1998 0 • SEDIMENT BASIN DESIGN — DESIGN CALCULATIONS SFDIMFNT BA SIN No. 9 Sediment Storage Volume = Drainage Area 1,800 Cubic ft /Acre 1.09 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,962 Cubic Ft. Use Sediment Basin Dimensions of: 32 'L x 16 'W x 4 ' D Spillway _Dcsi�n: Maxium flow depth not to exceed 1' During passage of 10 Yr. Storm Weir Equation: Q= CWLH"' Q = 3.9 cfs (From Flow Calculations) C, = 3 (Broadcrestcd Weir) H = 1 Ft. (Max. Flow Depth) Q L = C,,H1.5 Leq.= 1.31 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) SFDIMF'NT BASIN No.10 Sediment Storage Volume = Drainage Area = 1,800 Cubic ft /Acre 1.25 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,962 Cubic Ft. Use Sediment Basin Dimensions of: 32 'L x 16 'W x 4 ' D Spillway Design: Maxium flow depth not to exceed l' During passage of 10 Yr. Storm Weir Equation: Q = CWLH1.5 Q = 4.5 cfs (From Diversion Ditch Calcs.) C, = 3 (Broadcrested Weir) H = l Ft. (Max. Flow Depth) Q L= Cw111'5 L«y= 1.50 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 7 of 1 June 5, 1998 FLOW CALCULATIONS 1) Sediment Trap No. 1 Peak Rate of Flow : Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 1.80 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 6.5 cfs 2) Sediment Trap No. 2 Peak Rate of Flow : Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 0.90 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 3.2 cfs 3) Sediment "Trap No. 3 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8,03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 0.71 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 2.6 efs 4) Sediment Trap No. 4 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 0.78 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 2.8 cfs Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 8 of 1 I June 5, 1998 Page 1 of 3 0 9 FLOW CALCULATIONS 5) Sediment Trap No. 5 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 0.43 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 1.5 cfs 6) Sediment "Trap No. 6 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 inthr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 1.66 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 6.0 cfs 7) Sediment Trap No. 7 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 0.96 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 3.5 cfs 8) Sediment Trap No. 8 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 inlhr (Fig. 8.03e - 25 Yr. - 5 Min.Duration) Drainage Area: A = 1.61 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 5.8 cfs Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 9 of I 1 June 5, 1998 Page 2 of 3 9) Sediment Trap No. 9 Peak Rate of Flow: Runoff Coefficient: Average Rainfall Intensity: Drainage Area: 10) Sediment Trap No. 10 Peak Rate of Flow : Runoff Coefficient: Average Rainfall Intensity: Drainage Area: 0 0 FLOW CALCULATIONS Q peak = ? cfs C = 0.45 i = 8.0 inlhr A = 1.09 Acres Q peak= CiA Q peak = 3.9 cfs Q peak = ? efs C = 0.45 i = 8.0 inmr A = 1.25 Acres Q peak= CiA Q peak = 4.5 efs (Table 8.03A - Disturbed Soils) (Fig. 8.03e - 25 Yr. - 5 Min.Duration) (See Sediment Basin Design) (Table 8.03A - Disturbed Soils) (Fig. 8.03e - 25 Yr. - 5 Min.Duration) (See Sediment Basin Design) Martin Marietta Materials, Inc. Sediment Volume per Acre per Year: Sheet: 10 of 11 June 5, 1998 Page 3 of 3 DIVERSION V-DITCH SCHEDULE MARTIN MARIETTA MATERIALS; Inc. 06/65/98 Chapel Hill Quarry Ditch Drainage Slope Size Vallow Vcalc. Qp (req.) Qcale. No. Area (Acres) (%) T' x d' (Ivscc) (fusee) (c.f's.) (c.f.s.) Lining TD I ** 1.5 8.4 6.0' x l.0' 5.0 6.1 5.4 18.2 Tall Fescue TD2** --------- 0.2 14.3 6.0' x 1.0' 3.5 7.9 0.6 23.8 Tall rescue 'fD3 0.4 3.0 6.0' x l.0' 5.5 3.6 1.5 10.9 Tall Fescue TD4 0.8 4.8 6.0' x ] .0' 5.5 4.6 2.8 13.8 Tall Fescue TD5 0.9 2.0 6.0' x 1.0' 5.5 3.0 3.3 8.9 Tall Fescue TD6 09 3.6 6.0' x I.0' 5.5 4.0 3.3 11.9 Tall Fescue TD7 0.6 2.7 6.0' x I.0' 5.5 3A 2.3 10.3 Tall Fescue TD8 0.3 3.1 6.0' x 1.0' 5.5 3.7 0.9 ] I A Tall Fescue TD9 0.7 4.5 6.0' x 1.0' 5.5 4.4 2.6 13.3 Tall rescue TD10 LO 3.0 6.0' x 1.0' 5.5 3.6 3.5 10.9 Tall rescue TD11 0.4 4.4 6.0' x 1.0' 5.5 4A 1.5 13.2 Tall Fescue TD12 1.2 6.2 6.0' x 1.0' 5.5 5.2 4.4 15.6 Bermuda Grass TD13 0.3 5.0 6.0' x 1.0' 5.5 4.7 1.0 14.1 Tall rescue TD14 0.8 3.2 6.0' x 1.0' 5.5 3.7 2.9 11.2 Tall Fescue TD15 1.3 6.6 6.0' x 1.0' 1 5.5 1 5.4 4.5 1 16.1 1 Bermuda Grass NO'1'17: •' Discharge from the diversion ditch is internal to the Pit. Therefore, tall fescue will line the ditch, Cross sectional area : 3 ft2 Manning's Coefficient: n = 0.043 (Fig. 8.05C - Class D Retard) Hydraulic Radius: R = 0.47 ft Wetted Perimeter Wi, 6,32 ft Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: I I of 11 June 5, 1998 Martin Marietta agregates P.O. Box 30013 Raleigh, North Carolina 27622-0013 Telephone: (919) 781-4550 Julie 8, 1998 Mr. Tony Sample Land Quality Section Division of Land Resources P.O. Box 27687 Raleigh, NC 27611 Subject: Additional Requested Information Mine Permit Modification Chapel Hill Quarry — Permit #68-02 Dear Mr. Sample: By. .JUN 101998 In accordance with our phone conversations, I would like to submit this response to cover the items listed in the Regional Office comments. As you are aware, the stream relocation that is contained in this modification is also under review by the Water Quality Section. Many of the items listed by the Regional Office focus on items that may also be of concern to the Water Quality Section. In our efforts to satisfy the concerns of each Division we have submitted plans that incorporated both good land quality measures and good water quality measures but at times the practices of these 2 systems seems to conflict with each other. The following comment's address your list faxed to me on June 4, 1998: The sediment trap calculations submitted with the modification included spillway sections that were sized using the I 0-year storm event. These calculations have been modified to include the 25-year storm event. Based on the fact that the 10-year and the 25-year storm events are so close in depth, the calculations do not change the spillway dimensions that were shown on the original submittal. Tile Q10 and the Q25 are basically the same and the design sheets submitted do not change. Bermuda grass has been added to the seed mixture at a rate of 10 lbs. per acre as suggested on page 1 G-11 in the Surface Mining Manual. The revised seed mixture is shown on the Mine Map. Temporary liners have not been considered for the diversion ditches. As covered by the design calculations, the allowable velocities are greater than the calculated velocities based on the lining shown. I understand the Regional Office concern and desire to see liners but we are required to inspect the basins each week and they are dipped as soon as needed. Due to the fact that this is a mining operation, equipment is on site to handle this task. 4. The 2 ditches that have calculated velocities greater than the allowable velocities, TDI & TD2, do eventually drain to the pit which is simply internal drainage. I do not see any need to address design of these structures. June 8, 1998 Mr. Tony Sample Page 2 5. The channel relocation construction sequence has been modified to address the noted concerns. The relocated channel tie-in at Phil's Creek and upstream will be stabilized by the use of rip -rap. This area must however be minimized based on the requirements by the Corps of Engineers and the Division of Water Quality with respect to our permits from their offices. The check dams shown have been modified to include stone of adequate size. 6. The channel cross section will be modified to allow for stabilization of the normal -(low channel. The original submittal showed a vertical side of 18 inches and this can be placed on a 1.5:1 slope to allow for seeding. The attached drawings show the modified design. This modification along with the installation of pool & riffle areas and a meandering channel will keep the velocity down to a minimum. It is suspected that the Division of Water Quality will require these features to meet their needs. Your office will be kept informed on the negotiations on this matter as they proceed. 7. The headwater issue at the pipe is not a concern. Martin Marietta now owns the property previously shown as the Justice property, which lies upstream from the pipe. This tract includes approximately 500 feet of this stream above the pipe. If water does back-up due to a large storm event, it will be on Martin Marietta property. 1 have modified the Mine Map to show this clarification. 8. The pipe outlet will be constructed with at least NCDOT Class I rip -rap placed 18" thick. It is hoped that this submittal will complete your review of this application. Please contact this office if any additional information is needed on this matter. Sincerely, 9wZ610 h d-- Steve Whitt, P.E. Environmental Engineer CC: Dean Hardy Al Van Dorp Ken Brown Construction Sequence Channel Relocation — Chapel Hill Quarry Phase I Receive approval from the Corps of Engineers and the Land Quality Section. Locate. channel centerline and flag clearing limits. Clear- and grub_ the area at the end of the channel for the construction of the first check dam. I�Zstall the first check dam . I Clear and grub the remaining area inside the clearing limits. Construct the lower section of the channel (station 8+00 to 9+00) as it intersects with Phil Creek. Install the other 2 rock check dams along this last 100 feet of channel to collect sediment from the project before it enters Phils Creek. Phase Ii Continue with the construction of the channel from station 8+00 up to the outlet of the 54" pipe at station 2+20. Inspect the rock check dams on a daily basis to insure that they are functioning properly and that any accumulated sediment is removed. .If additional rock checks are needed along the channel constructed in Phase 11 they will be installed according to the details included for Phase I. Phase III Install 170' of 54" diameter pipe from station 0+50 to station 2+20. Construct a stabilized outlet structure as shown in the attached plans at the outlet of the 54" pipe. Ply ace rip -rap at the channel intersection with Phil's Creek. Phase IV Remove all accumulated sediment from the rock check dams and remove dam structures. Construct the last section of the channel (station 0+50 to station 0+00). Seed exposed areas according to the seeding schedule and plan seedlings as noted on the plans. TOTAL PROJECT TIME IS ESTIMATED TO BE 3 MONTHS. J 6 W e M1 Z Q 2. R; U6:1 6:1 W \ Q Y.. n ROCK Plan of Rock Cheek D mFlL1FR FABRIC o - CHECK DAM _J W � 057 st°ne (I IL thick) 5 cost I meth 1 \\ wP-RAP F _ Q 6 . �� f RMbn y feyub06 AL1ER FABRIC _111 111 II a, edlon Thv Center of Rock Gherk Dam C_ llAtS RIP -RP➢ Z ("�\ TALKil ALBIIG T v` (/ N°rtF Marietta Aq>ppt"AA PHILS CREEK TM NM WMECII a Jrl(L wacx, N.C. S III6�I1161♦ 111 ROCK CHECK DAN PROPOSED CREEK RELOCATION v f-vl I cotO "aCHAPEL HILL QUARRY ORANGE COUNTY, N.C. _ � API['!: CHAPRL IO,L (NAWiY V 0 e �o xk a 10 m I¢ V� : 13 MA SLOPES 851 all 18"TYPICAL ly. TYPICAL CROSS-SECTION PROPOSED CHANNEL 1 2 4 - =LvwMr-Ml PROPOSED CREEK RELOCATION CHAPEL HILL QUARRY ORANGE COUNTY, N.C. NORTH C ROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES Land Qualify section Facsimile message Tu:sy� tjA�& Phone No.: Fax No.:-783-1/5-07 From: �aoN• (� D&: / - 4-5p Time: 3 So 111111001014011111 i r dv E.x elrA 4eJ You should be receivEne Z yage(s) (including cover shed): tf you do not receive A yages, ykase contact sender 0 9191733-4574. LAND OwLm 3CcnON(919) 733.4574 rAX(9191>33RR9e GEOLOGICAL SURVEY SECTION(919) 733-ZA23 FAX(9101 733.0900 P.O BOi27997. RALEION, NORTH CAROMMA27611-7999 T11LCPNONE1919)733-3933 FAX(9191715-9301 AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMILOTCR - SO% 1¢CYCLEo/1 OX PD9T-CONSUMER PAP[R Author: "John L. Holley" <jholley@rro.enr.state.nc.us> at Internet Date: 6/3/96 9:21 AM Priority: Normal TO: Tony Sample at NROLROIP Subject: Chapel Hill Quarry (68-02) ------------------------------------ Message Contents ------------- We have completed our review and offer the following comments: / (1) DWQ/DAQ comments are to be faxed and don't indicate any particular problems from their perspective. p S y (2) Proposed sediment traps should be acceptable, but the spillways were not designed far the 25-year storm. It is estimated that the proposed spillways should accommodate the diference between the (� 10-year and 25-year storms; however, it may be a good idea to have _ them verify this by calculation. (3) Proposed ground cover specifications appear adequate for the G✓'(. Y^ 'fi? species indicated, but Bermuda was not included consistent with the diversion ditch designs. r, temporary liners have not been ) �% considered for the ditches;; and and although TOl 5 TD2 will drain JP ,y `F internal without sediment problems if pit expansion progresses as intended, they will not be stable and could cause rapid filling of ,,f,^ trap 6. W (4) The proposed channel relocation needs additional work. In Phase I of the construction, clearing and grubbing needs to be phased so that the exposed area is minimized when the initial device is 1. installed. The drainage area for this disturbance even prior to diversion of the stream appears significant. The relocated section should be stabilized prior to diversion of stream flow (or ultimate drainage area), and the tie-ins at Phil's Creek and the US end moat G�TjN a be armored as necessary to ensure proper stabilization. The proposed check dams may provide adequate sediement control for the short-term, f9s' but they must be constructed with larger structural stone per the guidelines. Lastly, stabilization of the channel must be fully addressed'. How will they stabilize the pilot channel with its proposed vertical side -slopes? The average design velocity will approach 5 fps in the overall channel; what kinds of temporary liners will be used? (5) The proposed culvert design has not considered headwater. It appears that HW will be significant and may result in undesirable US flooding during the design event. The outlet apron looks acceptable, but must be constructed with at least NCDOT Class I rip -rap placed 18" thick. 1 do not recommend approval until these issues have -been addressed satisfactorily. If there are any questions, please advise. • JUN p41998 MAOMAI MA49-MA - CNA L 11iLL sy NINE SITE REVIEW FORM DWQ Comments - Water Quality ^.IN,R�,,7. iN ''MII5221 c9Tfr Project: �-RRYYL 4�1Lf, a�IMLL? �Cou�n/ty: 'A'�G/r�� Assigned To: 5. WJ gA/ Due: 54* 44, Completed: REVIEW ISSUES: ChPB FGAa- AJ�a RASIti Watershed/Stream Name and Classification: Ur PAILs 62c,�I9- Comments: f.9W1�S141F� -41 • 2- 2-10.3 NPDES Permit Required NPDES Permit Existing (No. SC4020007 ) Nondischarge Permit Required Nondischarge Permit Existing (No. ) Notice of Violation Issued (Date(s) Enforcement Actions Taken (Date(s) 3J SzrI�N _JAJ 1 �10 isOS.J Comments: iG Is AL"Aoq coq - Pq MA05 46WUaA+ PeLui r U*000kL APPW CATi ON QIPM ITEED N/97 I uN LC55 ACUOilii ES a4617 *M4A TAOLr bJND&n -Wr flgu�hL paial'r 4ev iNc P:�o Lj/T3115 AeOf e4r.44 xaaiLoNkl- D15c.lAa4&�N�N-DiScHAA4c` WPu �O Nor g� 1t:e�+uitBD. Wetlands Disturbed by Activity 401 Certification Required LLN�Cnb„fN Comments: A4 smra0 IN 'Me kpJLl CkfiaN� TPe FRa L�IY Rxa �rJs�S G(O[sjTl OAl PG A OYA-nod OF I'?I F U•T. IuG FACILITY JAL IN DiCkjE17 -MAr GIMC ` AA�COE E DWO AAs Ri-elU roN-n6T" �� l Approved By: �fno..._ , �A �- Date: S 1711 K Tb Aq JUN p41998 D B DWQ Comments - Groundwater Quality i9MER)GAJ✓ STd/J��nA.P�/�✓mARl 1i9J Project;• CAAC*. Ells` County; Cr-�Cx � Assigned To: .40�-' WWR S44& Due: S .Zk& Completed: 4;nLsF1Je REVIEW ISSUES: YES NO Well Permit Required �i✓ Well Permit Existing (No. ) _� Groundwater Contamination Problem _ Notice of violation Issued (Date(s) Enforcement Actions Taken (Date(s) Comments: Z E E .✓ ger,la�frrai ✓ S.4ner/_� ✓eT O�ERSELY {, r �T Tf/E c6..:Posr�yn�vA Approved By; � Date: S� MINE SITE REVIEW FARM DAQ Comments - Air Quality Project: C-tJ'k C- N/L� �Qycd"7 6T- 6656� Assigned To: �, �j �C�o�u"nttyy: Due: B Completed: 5.LoY/—?F REVIEW ISSUES• Air Permit Required 45 7G p1 Air Permit Existing (No. F Notice of Violation Issued (Date(s)s) ) Enforcement Actions Taken (Date(s) Comments: Odde,APDmAY Ake B-a7V /1a CRt' Oh crL rk9 C�G'_c..�na+-evl- Approved By: _ Lv/ Date: NCWRC,HCP,FALLS LRKE TEL:919-528-9839 • Jun 03'98 8:02 No.001 P.01 O *low OfficeFalls Lake Date C • �-9P Number of pages including cover sheet To: .'-On/N 57hm.�iE Phone Fax Phone CC: NC Wildlife Resources Commission Habitat Conservation Program 11421-85 Service Road Creedmoor, NC 27522 From: ^^ , CILUE/✓ /"�NOC X JO.� Phone 919-528.9886 Fax Phone 919-528-9839 NCWRC MCP , FALLS LAKE TEL :919-528-9839 Jun 03'98 8:02 No.001 P.02 44�rtF, I� North Carolina Wildlife Resources Commission Fes' 512 N. Salisbury Street:, Raleigh, North Carolina 27604.1188, 919-733.3391 Charles R. Fullwood, Executive Director MEMORANDUM TO: Susan B. Edwards, Mining Program Secretary Land Quality Section ? .. c FROM: Owen F. Anderson, Pie3mo t Region Coordinator ]Habitat Conservation Program. DATE: Junc 3, 1998 SUBJECT: Mining Permit Modification Request for Martin Marietta Aggregates, Chapel Hill Quarry, Phils Creek, Cape Fear Basin, Orange County, North Carolina - Permit No. 68-02 Biologists on the Wildlife Resources Commission staff have reviewed the subject document and are familiar with habitat values of the project area. A site visit was made to the area on May 12, 1998. The modifications were discussed with Ken Brown, Mine Manager and Steve Whitt, Environmental Engineer. Our comments are provided in accordance with provisions of the Mining Act of 1971 (as amended, 1982) (G.S. 74-46 through 74-68 15 NCAC 5). The proposed modification includes the addition of 14.4 acres to expand the current operation. The additional acres include 7.6 acres of new berm and 6.8 acres of pit expansion. The expansion will require the relocation of an unnamed tributary to Phils Creek shut is classified as WS-IV. The width of the stream varies from approximately 4-7 feet. Although it is probably classified as an intemtittent stream; snails and some aquatic insects, probably of the order Trichoptera were observed in the creek. The stream flows through a good quality forested area consisting primarily of mature yellow popular, white oak, red oak, Ioblolly pine and red maple. OUr major concern with this project is the impacts to the intermittent stream and the associated good quality riparian habitat, What we believe (a red -tail was calling in the area) to be a red-tailed hawk nest is located in a large loblolly pine in relatively close proximity of the upstream reach of the rc location, There were also a number of trees on the ground from a recent storm that are providing good cover for small mammals, reptiles and amphibians, We have the following recommendations and requests to minimize impacts to aquatic and terrestrial life and the habitat of the area: The new stream channel should be designed with a similar width/depth ratio and meander length as the existing stream and replace the lost functions of the abandoned channel. We NCWRC,HCP,FRLLS LAKE TEL:919-528-9839 Jun 03,98 8:03 No.001 P.03 Martin Marietta 68-06 i 2 0 June 3, 1998 Chapel Hill Quarry, Orange County recommend that the design follow the Dave Rosgen methods of strelmi relocation. Additionally, we recommended that large canopy trees be avoided if possible, especially any large white oaks, red oaks or hickory. The loblolly pine with the red-tailed hawk nest and other large trees that protrude above the main canopy should be protected because this site is likely to be used again for nesting. 2. To help maintain the integrity of the riparian habitat and protect water quality, we request that a 50-foot buffer be maintained in forested habitat alon? the unnamed tributary and that a minimum 100-foot forested buffer be maintained along Phils Creek in those areas where the pit has not already encroached closer than 100-feet. In those areas where mining has approached closer than I00-feet, we request that the remaining riparian buffer be retained in a native forested condition, be planted with high quality trees suitable for the area or be allowed to undergo natural succession. 3. We recommend that top soil from the new channel be removed and stockpiled separately. Once the channel has been shaped, this material can be placed along the banks and in the overbank area of the stream. These soils should be fertile and contain significant seed sources of plants of this area, which should insure a rapid stabilization of the stream channel. Excess top soils could be spread over the berm adjacent to the relocated stream, which should produce better plant and tree growth; and thus, increased stabilization. if additional, stabilization of the banks is needed, shade tolerant species will need to be selected. Red maple (Ater rubrum) and ironwood (Carpinus americana) and shrubs such as dogwood (Cornus florida and C. alternlfolia). 4. We request that the stream channel be given sufficient time for vegetation to become well established prior to turning water into the new channel. 5. The 170-foot of stream channel under the berm should be mitigated either on -site or through the wetland restoration program. 6 We recommend that boles of large trees that are down that are not suitable for salvage be stockpiled or left in place if they will not interfere with the new stream construction. Once the channel is constructed and stabilized, the downed -logs can be placed near or extend into the overbank areas to provide habitat for plants and small animals. If there is a surplus of slash or boles these could be placed along the berm to increase the complexity of habitat in that area. 7. We recommend that loblolly pine (Plnus tacda) and high quality hardwoods, such as white oak (Quercus albs), post oak (Q. stellara), black oak (Q. velutina), southern red oak (Q. f dcala), shagbark hickory (Caga ovata), and persimmon (Diospyros virginiana) be planted on the berm along the relocated stream and be spaced 12 feet apart. We recommend planting approximately 2()% pine and 80% hardwood. Loblolly pine should do well over the entire berm. Plant white oak and shagbark hickory along the lower edges of the berm, use persimmon throughout, and post oak, southern red oak and black oak on drier upper parts of the berm. $, We request that we be notified prior to beginning construction of the stream so we can observe the channel construction, at planting and when the water is turned in. Thank you for the opportunity to review and comment on this application_ If I can be of further assistance, please contact me at (919) 528-9886. cc: Steve Whitt, Environmental Engineer, Martin Marietta Kcn Brown, Mine Manager, Martin Marietta `NCDENR T v4, e NU 3 ; e Gwfinrlen _Allq T ,� lip 11 ,�.-;J I TIE IL v; NORTH CAOROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES May I, 1998 TO, Mr. Owen Anderson v.a ygq% Habitat Conservation Program Coordinator Wildlife Resources Commission 'ZYd �� 1C AIM FROM. Susan B. Edwards Mining Program Secretary �"i'c"�•-i Land Quality Section` SUBJECT: Mining Permit Modification Request for American Stone Cornpany Chapel I -Ell Quarry - Permit No. 68-02 Orange County Please find attached for your review a copy of the mining permitmodification request for the above referenced project. Please review this information and advise as to the probability of this operation having unduly adverse effect on wildlife and freshwater fisheries (G. S. 74-51 (2)). Please respond by May 30, 1998 so that we may complete our review of this request within our statutory time limits_ As is the case in our review of all mining permit applications, renewals and modifications, this office will carefully review all proposed erosion and sediment control measures to ensure that they are sufficient to restrain erosion and off site sedimentation. However, any comments your agency can provide regarding effects on wildlife and freshwater fisheries would be greatly appreciated, If your staff wishes to perform a site inspection, it is recommended that they contact the person submitting this request to set up a convenient date and time. Also, please send a copy of your comments to the person noted in the application. RETURN ALL APPLICATION MATERIALS AND MAPS WITH YOUR REVIEW COMMENTS TO THIS OFFICE, Your continued cooperation in the review of these type requests is greatly appreciated. Please contact Mr. Tony Sample at (919) 733-4574 if you have any questions, /SBE Attachments cc: Mr. John Holley LAND QUALITY SECTION 19191733-4574 FAX 1919) 733287G QEOLOGICAL SURVEY SECTION (9191733.2423 FAX19191733.0900 P.O 6N t 27697, RALEIGH, O VI CIII Z7611.7507 TELEPHONE 1919) 733-3933 19) 715.8801 AN EQUAL OPPORTUNITY I AFFI R NATIVE A,,,OH EHrLOICR - SO% RECYCLE ll O% POST CON SUPER PAPER "'JAME9 B. HUNTJR. ..'GOVERNOR Krw I.WAYNE NICOEVIT;� ;,^ySg.CRETARY. ,ry.^ie�, •�cx tr; ' h � ' CNARLEB H:.G P.G ;-P.E: DIRE AND STATE GE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES May 1, 1998 MEMORANDUM T0: Mr. Owen Anderson Habitat Conservation Program Coordinator Wildlife Resources Commission FROM: Susan B. Edwards Mining Program Secretary Land Quality Section SUBJECT: Mining Permit Modification Request for American Stone Company.. Chapel Hill Quarry - Permit No. 68-02 Orange County Please find attached for your review a copy of the mining permit modification request for the'above referenced project...; Please review this information and advise as to the probability of this operation having unduly. adverse effect on wildlife and freshwater fisheries (G.S.-7.4-51 (2)).- Please respond by May 30, 1998 so that we may complete our review of this request within our statutory time limits. As is the case in our review of all mining permit applications, renewals and modifications, this office will carefully review all proposed erosion and sediment control measures to ensure that they are sufficient to restrain erosion arid off- site sedimentation. ..However, any comments your agency can provide regarding effects on wildlife and freshwater fisheries would be greatly appreciated. if your staff wishes to perform a site inspection, it is recommended that they contact the person submitting this request to set up a convenient date, and time. Also, please send a copyofyour comments to the person noted in the application. RETURN --ALL APPLICATION MATERIALS AND MAPS WITH YOUR REVIEW COMMENTS TO THIS 161=10 ! Your continued cooperation in the review of these type requests is greatly appreciated. Please contadt Mr. Tony Sample at (919) 733-4574 if you have any questions. . JSBE Attachments cc: Mr. John Holley LAND QUALITY SECTION (919) 733-4574 FAX (919) 733-2676 GEOLOGICAL SURVEY SECTION (919) 733-2423 FAX (919) 733-0900 P.O. BOX 27687, RALEIGH, NORTH CAROLINA 276I 1.7687 TELEPHONE (919) 733-3833 FAX (919) 71 5.8801 AN EQUAL OPPORTUNITY I AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLEO/1 O% POST -CONSUMER PAPER DATE TO ASSISTANTA I—�7� DATE ?&SUSAN y -To •A/G' LOGGED IN Q� MINING CHECKLIST FOR ROUTING Company G 1dfx Project Name Permit NO. kg-0z County zi e.;-. Date Received H-Sa efS Reviewer Please make copies of check to include with Central Office and Field Office files andlog in checks. • ❑ New ElRenewal ❑ Modification ❑ Transfer ❑ Release ❑l Additional Information ElFeeNeeded 11 Fee Received: Amount 75TD 00 Please route to: ❑ /C i.C� Field Office Date Routed�_7: _ � itlY ❑/ Wildlife Resources Commission Date Routed � • ❑ Archives and History Date Routed 110�Other: r� Date Routed suspense Date for comments: 30• (Date received +30 days, not on weekend) ❑ Please note the following: i EI pd sears H• io•fe •SUSAN: Please make file and return Checklist and file to Reviewer White Copy to Field Office Yellow and Pink Copies to File Goldenrod Copy to Susan Martin Marietta Sgregates 0 P.O. Box 30013 Raleigh, North Carolina 27622-0013 Telephone: (919) 781-4550 April 29, 1998 Mr. Tracy E. Davis, P.E. Mining Specialist Division of Environmental Management P.O. Box 27687 Raleigh, NC 27611 Subject: Mine Permit Modification Chapel Hill Quarry — Permit #68-02 Orange County Dear Mr. Davis: Enclosed please find duplicate copies of a completed Application for a Mining Permit Modification to cover the disturbance of an additional 14.4 acres at the above referenced facility. The additional acres included in this submittal cover 7.6 acres of new berm and 6.8 acres of pit expansion. Included with this submittal you will find the following: + Completed first 2 pages of the application form • Check #98-009068 in the amount of $250 to cover the permit processing fee • Revised mine map showing the changes • Erosion control details for the new berm • Engineering drawings and details for a relocated drainage channel In order for the pit to expand at this site, an unnamed tributary to Phils Creek must be relocated for 900 feet. Both the Corps of Engineers and the NC Division of Water Quality have been to the site to inspect the project area. The appropriate permit application forms have been submitted to these agencies to cover this relocation. The channel was not viewed by either agency as a significant stream and wetlands were not an issue. Detailed engineering drawings are included that show the channel cross sections, cut depths, erosion control and revegetation plan. As the plans show, 170' of the distance will be covered by a 54" diameter pipe under the berm. Martin Mariettaogregates • P.O. Box 30013 Raleigh, North Carolina 27622-0013 Telephone: (919) 751-4550 May 4, 1998 Mr. Tony Sample Mining Specialist NC Division of Environmental Management P.O. Box 27687 Raleigh, NC 27611 Subject: Additional Copies Mine Permit Modification & Chapel Hill Quarry — Permit #69-02 Dear Mr. Sample: 998 By As you requested I am submitting to your office 2 additional copies of the mine permit modification for Chapel Hill Quarry that I delivered to you on May 1, 1998. Please get in touch with me if you need any additional information on this matter, Sinecerly, Steve Whitt, P.E. Environmental Engineer 0 AMERICAN STONE COMPANY P.O. BOX 30013 RALEIGH, N.C. 27022 VENDOR NO. 61395 DATE CHECKNO. 4/28/9B 980009068 DATE INVOICE CREDIT GROSSAMT. ADJ DESG ETAMOUNT 04x698 INE "NAP 25000 HNR 250p0 .., DE ..: [!APR 10 10oq ., LANDiQUkLITY SECT ON '. THE AFT ACMM CHECKISINRAYMENT TQfAI - ... FOR ITEMS DESCRIBED ABOVE "�'• AMERICAN STONE COMPANY In P.O. BOX 30013 RALEIGH, N.C. T 622 FIRST CITRENS BANK A TRUST CO. GREENSBORO, NC21201 PAYTOTHEORDEROF: NC DENR - P'O`BOX 27667 . RALEIGH NC 27611 GHECKNO.'.98-009068 v� DIVIDISTWCT DISBURSEMENT ACCT. VOID SIXTY DAYS FRON DATE 'DATE CHECK AMOUNT 3/98 11 $250, 00. .. AMERICAN STONE COMPANY 27 ew uT April 29, 1998 Page 2 The mine map includes a seeding schedule for general vegetation, a typical berm detail, bench diagram, diversion ditch detail and pipe outlet stabilization for the 54" pipe. This is also a new CAD generated map that includes color codes for various site features. It is critical to the production processes at this site that additional pit area becomes available in the next few months. Anything that your department can do to process this modification in a minimal amount of time would be greatly appreciated. We understand that the unnamed tributary relocation can not take place until the Corps of Engineers and the Division of Water Quality complete their permitting process. Receiving approval from your office to begin construction on part of this new berm will allow the site the new pit area that is needed. Please get in touch with this office if any additional information is needed on this matter. Since ely, � i)zj Steve Whitt, P.E. Environmental Engineer CC: Dean Hardy A] Van Dorp Ken Brown NORTH CAR07 NA DEPARTMENT OF ENVIRONr NT, HEALTH, AND NATURAL RESOURCES LAND QUALITY SECTION APPLICATION FOR A MINING PERMIT (PLEASE PRINT OR TYPE) 1. Name of Mine: Chapel Hill County: Orange 2. Name of Applicant*: Martin Marietta, Materials, Inc. 3. Permanent address for receipt of mail**: P.O. Box 30013 Raleigh, NC 27622 Telephone:191_9) 781-4550 4. Mine Office Address: 1807 Hwy 54 West, Chapel Hill, NC 27516 Telephone: (919) 929-7131 5. Mine Manager: We hereby certify that all details contained in this Permit Application are true and correct to the best of our knowledge. We fully understand that any willful misrepresentation of the facts will be cause for permit revocation. ***Signature: Date: April 28, 1998 Print Name: Robert R. Winchester Title: Senior Vice President * This will be the name that the mining permit will be issued to and the name that must be indicated on the reclamation bond or other securit that corresponds to this site. ** The Land Quality Section must be notified of any changes in the permanent address or telephone number. *** Signature of company officer required. G.S. 74-51 provides that the Department shall grant or deny an application for a permit within 60 days of receipt of a complete application or, if a public hearing is held, within 30 days following the hearing and the filing of any supplemental information required by the Department. All questions must be addressed and all required maps provided before this application can be considered complete. Attach additional sheets as needed. APPLICATION FOR A MINI `~ PERMIT • NOTE: All of the followin uestions must be thoroughly answ9d with regards to your mining operation for the intended life of the mine. All responses must be clearly conveyed on a corresponding, detailed mine map. A. GENERAL CHARACTERISTICS OF THE MINE Answer all of the following that apply: I . a. If this is an application for a NEW permit, indicate the total acreage at the site to be covered by the permit (this is the acreage that the "new permit " fee will be based upon): Of this acreage, how much is owned and how much is leased? Acres owned: Acres leased: Property owner if leased: b. If this is an application for RENEWAL of a mining permit. indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No. Total permitted acreage (this is the acreage that the "renewal" fee will be based upon): c. If this is an application for a MODIFICATION to a mining permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No.: 68-02 Total permitted acreage: 118 Does the modification involve acreage within the previously approved permit boundary? Yes X No_. If yes, indicate the acreage to be covered by this modification ( this is the acreage that the "major modification" fee will be based upon): 14.4 Does the modification involve acreage outside the previously approved permit boundary? Yes —No If yes, indicate the additional acreage to be covered by this modification: . (NOTE: you must complete all of section F. of this application form entitled Notification of Adjoining Landowners). Of this acreage to be added to the permit, will any portion of this acreage be affected (disturbed, ground cover removed) by the mining operation? Yes X No_ (if no, a "minor modification" fee of $50.00 is required, despite the "undisturbed" acreage to be added). If yes, indicate the acreage to be affected ,within the acreage to be added to the permit (the total acreage to be added to the permit is the acreage that the "major modification" fee will be based upon): 14.4 d. If this is an application for TRANSFER of a mining permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No.: Total permitted acreage: SEE THE FEE SCHEDULE AT THE END OF THIS FORM FOR THE PROPER FEE AMOUNT TO BE PAID FOR THE REQUESTED PERMIT ACTION(S) AND CORRESPONDING ACREAGE NOTED ABOVE. 2. Indicate the approximate longitude and latitude, in degrees -minutes -seconds, of the center of the mine site: LONGITUDE (dd-mm-ss): 79 08 30 " Quadrangle: White Cross LATITUDE(dd-mm-ss): 35 55 45 3. Name of all materials mined: Granite -2- AMERICAN STONE COMPANY P O. BOX 30013 RALEIGH, N.C. 27622 a VENDOR NO. 61395 DATE CHECK NO, /2s/9s 980009068 DATE INVOICE/CREDIT GROSSAMT ADI DESC CREDIT DISCOUNT NETAMOUNT 04S6P8 iINE MAP 25000 ! ! ^_50po � I i i i i THE ATTACHED CHECK IS IN PAYMENT TOTAL D FORfTEMSOESCFISEOABOVE 7r IMEM AMERICAN STONE COMPANY siu CHECK NO, 95-009068 P.O. BOX 30013 IMQMF RALEIGH. N.C. 27822 DIVJDISTRICT OISSURSEMENT ACCT. FIRST CITDIENS BANK A TRUST CO. VOID 6IKTv DAYS FROM DATE GREENSBORO, NO P401 PAY TOTHE ORDER OF: DATE CHECK AMOUNT 04/28/98 $250.00 NC DENR AMERICAN STONE COMPANY P 0 BOX 27687 RALEIGH NC 27611 / uPHonl SrowTe APPLICATION FOR A MINIIWERMIT NOTE: All of the following questions must be thoroughly answ0d with regards to your mining operation for the intended life of the mine. All responses must be clearly conveyed on a corresponding, detailed mine map. A. GENERAL CHARACTERISTICS OF THE MINE Answer all of the following that apply: a. If this is an application for a NEW permit, indicate the total acreage at the site to be covered by the permit (this is the acreage that the "new permit " fee will be based upon): Of this acreage, how much is owned and how much is leased? Acres owned: Acres leased: Property owner if leased: b. If this is an application for RENEWAL of a ruining permit. indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No. Total permitted acreage (this is the acreage that the "renewal" fee will be based upon): If this is an application for a MODIFICATION to a mining permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No.: 68-02 Total permitted acreage: 1 l 8 Does the modification involve acreage within the previously approved permit boundary? Yes X Now If yes, indicate the acreage to be covered by this modification ( this is the acreage that the "major modification" fee will be based upon): 14.4 Does the modification involve acreage outside the previously approved permit boundary? Yes _No If yes, indicate the additional acreage to be covered by this modification: (NOTE: you must complete all of section F. of this application form entitled Notification of Adjoining Landowners). Of this acreage to be added to the permit, will any portion of this acreage be affected (disturbed, ground cover removed) by the mining operation? Yes X No_ (if no, a "minor modification" fee of $50.00 is required, despite the "undisturbed" acreage to be added). If yes, indicate the acreage to be affected ,within the acreage to be added to the permit (the total acreage to be added to the permit is the acreage that the "major modification" fee will be based upon): 14.4 d. If this is an application for TRANSFER of a mining permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No.: Total permitted acreage: SEE THE FEE SCHEDULE AT THE END OF THIS FORM FOR THE PROPER FEE AMOUNT TO BE PAID FOR THE REQUESTED PERMIT ACTION(S) AND CORRESPONDING ACREAGE NOTED ABOVE. 2. Indicate the approximate longitude and latitude, in degrees -minutes -seconds, of the center of the mine site: LONGITUDE (dd-mm-ss): 79 08 30 It Quadrangle: White Cross LATITUDE(dd-mm-ss): 35 55 45 3. Name of all materials mined: Granite -2- NORTH CAROWA DEPARTMENT OF ENVIRO NT, HEALTH, AND NATURAL RESOURCES LAND QUALITY SECTION APPLICATION FOR A MINING PERMIT (PLEASE PRINT OR TYPE) 1. Name of Mine: Chapel Hill , County: _Orange 2. Name of Applicant*: Martin Marietta Materials Inc. 3. Permanent address for receipt of mail**: P.O. Box 30013 Raleigh, NC 27622 Telephone: (919) 781-4550 4. Mine Office Address: 1807 Hwy 54 West, Chapel Hill, NC 27516 , Telephone: (919) 929-7131 5. Mine Manager: Ken Brown We hereby certify that all details contained in this Permit Application are true and correct to the best of our knowledge. We fully understand that any willful misrepresentation of the facts will be cause for permit revocation. ***Signature: 4� Date:_ April 28. 1998� Print Name: Robert R. Winchester Title: Senior Vice President * This will be the name that the mining permit will be issued to and the name that must be indicated on the reclamation bond or other securi1y that corresponds to this site. ** The Land Quality Section must be notified of any changes in the permanent address or telephone number. *** Signature of company officer required. G.S. 74-51 provides that the Department shall grant or deny an application for a permit within 60 days of receipt of a complete application or, if a public hearing is held, within 30 days following the hearing and the filing of any supplemental information required by the Department. All questions must be addressed and all required maps provided before this application can be considered complete. Attach additional sheets as needed. 0 0 Martin Marietta Aggregates CHAPEL HILL QUARRY Orange County, North Carolina PIT EXPANSION, BERM CONSTRUCTION AND CREEK RELOCATION SEDIMENT AND EROSION CONTROL PLAN U CHAPEL HILL QUARRY PIT_ EXPANSION, BERM CONSTRUCTION AND CREEK RELOCATION TABLE OF CONTENTS PAGE Berm Construction Erosion Control Plan Enlargement of Berm Area 1 Construction Sequence 2 Sediment Basin Schedule 3 Sediment Basin Calculations 4 Diversion Ditch Schedule 12 Creek Relocation Plan Project Site Plan 13 Construction Sequence 14 Construction Contours Map 15 Station Cross Sections 16 Channel Erosion Control Plan 17 Channel Design Drawings 18 Drainage Area USGS Quad Sheet 20 Pipe Sizing Calculations 22 Tree Planting 24 MAY 5 1998 Construction Sequence 1) Obtain proper approval from Land Quality prior to any land disturbing activities. 2) Locate and flag all clearing limits. 3) Install sediment basins and diversion ditches according to the submitted plans and details. 4) Clear and grub the project area where necessary. 5) Direct all runoff to the erosion control structures. 6) Construct the settling cells in accordance with the attached details. 7) Seed and stabilize all bare earth following construction according to the attached seeding schedule. NOTES: 1) Inspection and maintenance of sediment basins and diversion ditches shall take place monthly and/or after each major rainfall event. At such time, all damage shall be repaired and accumulated sediment and debris removed. Any necessary stone replacement shall also be made at this time. Structures shall be reshaped to maintain the required design volumes. 2) Sediment trap and diversion ditch locations shall be adjusted in the field as necessary to conform to actual site contours. PAL Z SEDIMENT BASIN SCHEDULE Chi Hill Basin Draim$c Ana Sediment Basin Momeraims Weir Mararesim No. (Ades) uxwxu Top Width a Bourn Width up, to 1 1.8 3,240 42 1 x 21 'W x 4'D 12' x 6' up to 2 0.9 1,620 30 'L x 15 -W x 4 'D 101 x 41 up 3 0.7 1278 26 1 x 13 V x 4-D 10' x 4- up 0 4 0.8 lAW 28 % x 14 W x 4-D 10' x 4- upto 5 0.4 774 20 1 x 10 W x 4 'D 10- x 4 - up to 6 1.7 2,988 40 'L a 20 W x 4-D 12' x 6 up 10 7 1.0 1,728 30 L x 15 V x 41D 10' x 4 up to 8 1.6 2,999 0 1 x M W x 4-D 12' x 6' up to 9 1.1 1,962 32 T x 16 W x 4-D 12' x 6' up to to 1.3 2.250 34 1 x 17 V x 4-D 12' x 6' Nods: 1) Sediment onpo an gind for the total drainage area with I cicamout per year. 2) Weir dimensions are minimum rtquirtmenu from NCESUDM Cralek 6.60a). Sedirrarto Storage Capacity in Months: 12 Months Setfirruet Volume per Arm per Y. I 1,11DOCultic Feet Martin Marleva MaterlaN Inc Closexcl Hill Qua" Sheet: 2 of I I April 29,1998 FA c, F 'H > • SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENTBASIN No.1 Sediment Storage Volume 1,800 Cubic R /Acre Dminage Area= 1.8 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume — 3,240 Cubic Ft. Use Sediment Basin Dimensions of: 42 'L x 21 'W Spillwav Desiun: Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q=C=.LHs's Q = 6.5 cfs (From Flow Calculations) C„= 3 (Broadcrested Weir) H - 1 Ft. (Max. Flow Depth) Q L— CWH" Lm= 2.16 Ft. Use Miniumum Weir Length of 6 (NCESCPDM SEDIMENFBASIN Nat Sediment Storage Volume = 1,800 Cubic ft /Aae Drainage Area= 0.9 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,620 Cubic Ft. Use Sediment Basin Dimensions of: 30 'L x 15 'W x 4' D Spillway Design: Maxium flow depth notto exceed I' Duringlu ssage of 10 Yr. Storm Weir Equation: Q— CrLH''s Q = 3.2 cis (From Diversion Ditch Calcs.) C.= 3 (Broadcrested Weir) H = 1 FL (Max. Flow Depth) Q La C,.H'.s L„y= 1.08 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 3 of I I April 29, 1998 F�� 9- Q 0 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN No.3 Sediment Storage Volume= 1,900 Cubic ft/Acre Drainage Area= 0.71 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume — 1,278 Cubic Ft. Use Sediment Basin Dimensions of: 26 'L x 13 'W x 4' D Soillwav Desim: Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q=C,LH''s Q= 2.6cfs (From Flow Calculations) C,= 3 (Broadcrested Weir) H= 1 Ft. (Max. Flow Depth) Q L— C„H1b 0.85 Ft. Use Miniumum Weir Length of 4 CESCPDM SEDIMENTEASIN Mad Sediment Storage Volume= 1,900 Cubic ft!Acre Drainage Area = 1 0.78 Acres Required Volume — Sediment Storage Volume x Drainage Arco Acquired Volume — 1,404 Cubic Ft. Use Sediment Basin Dimensions of: 28'Lx 14'Wx 4'D Spillway Desisa : Maxium Pow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q=C,LH's Q= 2.gefs (From Diversion Ditch Coles.) C,= 3 (Broadcrested Weir) H— I Ft. (Max. Flow Depth) Q L= C,H's L 0.94 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Shoat:4 of 1 I April 29, 1998 FACE 0 0 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENTBASIN No, Sediment Storage Volume = 1,800 Cubic A /Acre Drainage Area — 0.43 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 774 Cubic Ft. Use Sediment Basin Dimensions of 20 'L x 10 'W x 4' D Spillway Design: Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q=C.,LH1s Q= 1.5 all; (From Flaw Calculations) C.= 3 (Broadcrested Weir) H- IFt. (Max. Flow Depth) Q L= CrH" 1, = 0.52 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) SEDIMENTBASIN No.6 Sediment Storage Volume = I00 Cubic ft/Acre Drainage Am = 1.66 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 2,988 Cubic Ft. Use Sediment Basin Dimensions of: 40 'L x 20 ' W x 4 ' D Spillway Desi= Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q = C„ LHIJ Q — 6.0 cfa (From Diversion Ditch Cults.) C„= 3 (Broadcrested Weir) H- 1 Ft. (Max. Flow Depth) Q L— C„Hta L„x,- 1.99 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 5 of I I April 24, 1998 &C�E, a • SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS SEDIMENT BASIN No.7 Sediment Storage Volume = 1,800 Cubic fl /Acre Drainage Area= 0.96 Atma; Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,728 Cubic Ft. Use Sediment Basin Dimensions of: 30 'L x 15 'W x 4 ' D Soillwav DesiM7 Maxium flow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q=CWLHI's Q= 3.5 cfs (From Flow Calculations) CW = 3 (Broadcrested Weir) H = I Ft. (Max. Flow Depth) Q L= CWH" L, .= 1.15 Ft. Use Miniumum Weir Length of 4 (NCESCPDM) SEDIM£NTBASIN No.8 Sediment Storage Volume 1,800 Cubic O !Acre Drainage Area= 1.61 Acres Required Volume - Sediment Storage Volume x Drainage Area Required Volume = 2,998 Cubic Ft. Use Sediment Basin Dimensions of: 40 'L x 20 ' W x 4' D Soillwav Design: Maxium flow depth not to exceed I'During passage of 10 Yr. Storrs Weir Equation: Q=CWLH" Q= 1.6 cfs (From Diversion Ditch Calcs.) CW = 3 (Broadcrested Weir) H- 1 Ft. (Max. Flow Depth) Q L= CWHt's L"= 0.54 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) Martin Marietta Materials, Inc._ Chapel Hill Quarry Sheet: 6 of 11 April 29, 1998 SEDIMENT BASIN DESIGN - DESIGN CALCULATIONS Sediment Storage Volume = 1,800 Cubic ft /Acre Drainage Area = 1.09 Acres Required Volume =Sediment Storage Veto=x Drainage Area Required Volume = 1,962 Cubic Ft. Use Sediment Basin Dimensions of 32 'L x 16 'W x 4 ' D Spillway Desi= Maxium Bow depth not to exceed I' During passage of 10 Yr. Storm Weir Equation: Q=C„LHIu Q= 3.9 efs (From Flaw Calculations) CW = 3 (Broadcrested Weir) H - 1 Ft. (Max. Flow Depth) Q L— C„HL„q= 1.31 Ft. Use Miniumum Weir Length of 6 (NCESCPDM) SEDIMENTBASIN No.10 Sediment Storage Volume = 1,800 Cubic ft /Acre Drainage Arm = 1.25 Acres Required Volume = Sediment Storage Volume x Drainage Area Required Volume = 1,962 Cubic Ft. Use Sediment Basin Dimensions of: 32 'L x 16 'W x 4' D Spillwav Dmijer: Maxium flow depth not to exceed P During passage of 10 Yr. Storm Weir Equation: Q=C,.LH's Q = 4.5 efs (From Diversion Ditch Calm.) C„= 3. (Broadcreved Weir) H= 1 Ft. (Max. Flow Depth) Q L= C,.H" L,d,= 1.50 Ft. Marcia Marietta Materials, Inc. Chapel Hill Quarry Shed: 7 of 11 April 29,1998 P U& 6 1) Sediment Trap No. 1 Peak Rate of Flow: Runoff Coefficient: Average Rainfall Intensity: Drainage Area: 2) Sediment Trap No. 2 Peak Rate of Flow: Runoff Coefficient: Average Rainfall Intensity: Drainage Area: 3) Sediment Trap No. 3 Peak Rate of Flow: Runoff Coefficient Average Rainfall Intensity: Drainage Area: 4) Sediment Trap No. 4 Peak Rate of Flow: Runoff Coefficient: Average Rainfall Intensity: Drainage Area: FLOW CALCULATIONS Q peak= ? cis C= 0.45 (Table 8.03A- Disturbed Soils) i — 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Dumtion) A — 1.80 Acres (See Sediment Basin Design) Q peak-- CIA Q peak= 6.5 cis Q peak ? cis C = 0.45 i — 8.0 in/hr A— 0.90 Acres Q peak= CiA Q peak= 3.2 cfs (Table 8.03A - Disturbed Soils) (Fig. 8.03c - 010 Yr. - 5 Mia.Duretion) (See Sediment Basin Design) Q peak= ? cis C= 0.45 (Table 8.03A-Disturbed Soils) i = 8.0 in/lar (Fig. 8.03e - 010 Yr. - 5 Min.Dumtion) A= 0.71 Acres (See Sediment Basin Design) Q peak= CiA Q peak= 2.6 cis Q peak= ? cfs C= 0.45 (Table 8.03A- Disturbed Soils) i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Dmaticn) A= 0.78 Acres (See Sediment Basin Design) Q peak= CiA Q peak= 2.8 cfs Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 8 of 11 April 29, 1998 • C. FLOW CALCULATIONS 5) Sediment Trap No. 5 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A = 0.43 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 1.5 cfs 6) Sediment Trap No. 6 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A = 1.66 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 6.0 cfs 7) Sediment Trap No. 7 Peak Rate of Flow: Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A = 0.96 Acres (See Sediment Basin Design) Q peak-- CiA Q peak = 3.5 cfs 8) Sediment Trap No. 8 Peak Rate of Flow. Q peak = ? cfs Runoff Coefficient: C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i = 8.0 in/hr (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A = 1.61 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 5.8 cfs Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: 9 of I April 29, 1998 CA6-4E� 10 0 FLOW CALCULATIONS 9) Sediment Trap No. 9 Peak Rate of Flow: Q peak® ? cis Runoff Coeffrcienn C = 0.45 (Table 8.03A - Disturbed Soils) Average Rainfall Intensity: i � 8.0 in/br (Fig. 8.03e - 010 Yr. - 5 Min.Duration) Drainage Area: A IA9 Acres (See Sediment Basin Design) Q peak= CiA Q peak = 3.9 cis 10) Sediment Trap No. 10 Peak Rate of Flow: Q Peak = ? cis Runoff Coefficient: C= 0.45 (Table 8.03A- Disturbed Soils) Average Rainfall Intensity: i = 8.0 Win (Fig. 8.03e - 010 Yr. • 5 Min.Durntion) Drainage Area: A= 1.25 Acres (See Sediment Basin Design) Q peak— CiA Q peak= 4.5 cis Martin Marietta Materials, Inc. Sediment Volume per Acre per Year Sheet: 10 of 11 April 29, 1998 PEE. 0 a DIVERSION V-DITCH SCHEDULE MARTIN MARgTTA MATERIALS, -Inc. ° oa29/98: - Ditch Drainage Slope Size Vsnaw Vale. Qp(Tea Q®tc, No. Area (Acres) (59) Tx d' (Wsec) (Wass) (efs.) (c.fs.) Lining �TDI."' 15 8.4 6.0' x LIT 5.0 6.1 5.4 18.2 Tall Fescue 3,s 0.2 04 14.3 3.0 6.0'x 1.0' 6.0'x 1.0' 3.5 5.5 7.9 3.6 0.6 1.5 23:8 10.9 Tell Fescue Tall Fescue TD3 TD4 0.8 4.8 6.0'x 1.0' 5.5 4.6 2.8 13.8 Tall F%mc T05 0.9 2.0 6.0'x 1.0' 5.5 3.0 3.3 8.9 Tall Fescue TD6 0.9 3.6 6.0'x L0' 5.5 4.0 3.3 11.9 Tall Fescue TD7 0.6 2.7 6.0' x LO' 5.5 3.4 2.3 10.3 Tall Fescue T08 0.3 3.1 &0,x LO 5.5 3.7 0.9 11.1 Tall Fescue TD9 0.7 4.5 6.0' x 1.0' 5.5 4.4 2:6 13.3 Tall Fescue TD10 1.0 3.0 6.0'x 1.0' 5.5 3:6 35 10.9 Tall Fescue TDII 0.4 4A 6.0'x 1.0' 5.5 4.4 IS 13.2 Tall Fescue TD 12 1.2 6.2 6.0'x 1.0' 5.5 5.2 4.4 15.6 Bermuda Grass TD 13 0.3 5.0 6.0'x 1.0' 5.5 4.7 1.0 14A Tell Fescue TD 14 0.8 3.2 6.0'x 1.0' 5.5 3.7 2.9 11.2 Tall Fescue T➢15 1.3 6.6 6.0'x 1.0' 5.5 5.4 4.5 16.1 Bemlutla Gress NOTE: "Discharge from Me diversion d'uch Is Internal m the Pit Treated. fall fescue will line Me chat. Cmsa aetllorel area:3 fl mannings C0a8iuene n=0043(FI9.8.030.CIassDReImj Hydraulic Radius: Rh=0.471 Weuad Pomnew. Wr- 532 n Martin Marietta Materials, Inc. Chapel Hill Quarry Sheet: ll ofil April 29. 199B PZ\6L t2 lx®IIGAY xvgrwTYM "' c /TV i � —� 9 �� >L.vmaroAemA �'._ ncvu �- o0 f ell T yN xE art .. O IVo Q • a ., eusrwa ! LfCA110N PIT 4W dIR£a 1 Q 5a'�@IFFER xK / T e ST ' aRpWrvtK—..—..— •m - 0 xov tr WA11M— Qi rvruc xr u.r 1 zy,`d a axm X)W UK •c c m. x[ >Aaa.e.oe ra,E / sra°axE � a Ma in Marotta A9T•9at"m RwaGm H.C. ° �. PROPOSED CREEK RELOCATION 0 BVi a — • /, CHAPEL HILL QUARRY M«ow.xx��. . ORANGE COUNTY, N.C. xr:x \ unM a QUARRY: CHAPEL HILL QUARRY xa x° loll Construction Sequence Channel Relocation — Chapel Hill Quarry Phase Receive approval from the Corps of Engineers and the Land Quality Section. Locate channel centerline and flag clearing limits. Clear and grub the area inside of the clearing limits. Construct the lower section of the channel (station 8+00 to 9+00) as it intersects with Phil Creek. Install a series of 3 rock check dams along this last 100 feet of channel to collect sediment from the project before it enters Phils Creek. Install the rock check dam closest to Phils Creek as soon as possible. Phase II Continue with the construction of the channel from station 8+00 up to the outlet of the 54" pipe at station 2+20. Inspect the rock check dams on a daily basis to insure that they are functioning properly and that any accumulated sediment is removed. If additional rock checks are needed along the channel constructed in Phase 11 they will be installed according to the details included for Phase I. Phase III Install 170' of 54" diameter pipe from station 0+50 to station 2+20. Construct a stabilized outlet structure as shown in the attached plans at the outlet of the 54" pipe. Phase IV Remove all accumulated sediment from the rock check dams and remove dam structures. Construct the last section of the channel (station 0+50 to station 0+00). Seed exposed areas according to the seeding schedule and plan seedlings as noted on the plans. TOTAL PROJECT TIME IS ESTIMATED TO BE 3 MONTHS. 0 W f— Q U O W tr PHILS CREEK Sr : r - xo 0 5 Ia x 30 0 \.—DLi R FABRIC Plan of Rock Check Dam #57 Slane TOP RIP —RAP Width ��p e;mota`�u� OR .:a�w�0al JOnf.� a OZ90.Z0>__ e rem'veC `MWR FABRIC Section Thra Center of Rack Check Elam ROCK CHECK DAM K tpo C7 PRUPOSED CREEK RELOCATION not to scale � �I CHAPEL HILL QUARRY p ORANGE COUNTY, N.C. ARRY: CH EL M� UA r_. Em=ti� - TvrtcnL z7`� `' It TYPICAL wxF : ,• x' e s o 4 CROSS-SECTION EXISTING CHANNEL PROPOSED CREEK RELOCATION CHAPEL HILL QUARRY ORANGE COUNTY, N.C. AVxartx: cwLL ,mi. SLOPES 0 PROPOSED CREEK RELOCATION C CHAPEL HILL MARRY GRANGE COUNTY, NO. w°|ncl1 yk HIE A. into k� 7 . ..... v _0 A Drainage Area sea 6 Cj P-5 Quarry Property 20 Me, IV �A2 WAYS Ut li/�`O r �� % \� ��� � .wry �,� � � it '-:� ��1'—� oil Martin Marietta Aggregates Chapel Hill Quarry White Cross — USGS Quad Sheet Scale: V-20001 1�31 TWO NO 0 1 I Project Location U � �` �\ :_ (< 900' of Unnamed Tributary to Phils Creek ni �fj-� White Cross — USGS Quad Sheet \`.�' Asa � � � p,� ✓ Rational Method Land Uses Suburban (Residentail) Streets Crops Pasture Woodland Weighed Average Calculations 0.32 x 10.5 acres = 3.36 0.82 x 3.35 acres = 2.75 0.30 x 6.4 acres 1.92 0.20 x 18.6 acres = 3.72 0.15 x 127.2 acres =19.07 Total = 30.82 flpg! Sizing Unnamed Tributary Relocation Chapel Hill Ouarry ---�-- Acres 0.32 10.5 0.82 3.35 0.30 6.4 0.20 18.6 0.15 127.2 Total Drainage Area = 166 Acres 30.821166 acres = a C of 0.186 for the entire drainage area Time of Concentration Maximum length of travel = 3700' Height of most remote point above outlet = 83' From figure 8.03(a) the time of concentration is 19 minutes Rainfall Intensity Factor Using figure 8.03(e) and the 100 year storm event at 19 minute duration - 6 in/hr Calculate Peak Discharge Q= C(i)(A) Q= 0. 186(6.0)(166) Q= 185 cubic feet per second Based on a slope of 1 % this vine sizes to a 54" diameter pipe. Em I 0 WFOR CIRCULAR PIPE FLOWING Fo ASED ON MANNING'$ EQUATION n=0.012 5000 4000 3000 . . 2000 . . . . . . . . . . 1000 800.— 4—, �� . . . . . . low qw 0 26 w 80 24 60 50 22 40 30 20 Fo 20 J 18 16 10- 8 14 12 3: OL14 2 4 4 1 4 FT/SEC j 4 d6 4- 5 .4 t ,3 .2 .01 .02 .03.04.05 61 .2 .3 .4.5,6 S 1 2 3 4 5 6 810 SLOPE OF PIPE IN FEET PER 100 FEET AT lLsr�LF� -5Lofe -14E Co.4%f 5�11� Ir TYPICAL BETWEEN SEEDLUIGS a,• i. 2:1 CUT SLOPE OF 4' NORMAL FLOW CUT SLOPE OF VARIOUS LENGTHS FLOW VARIOUS LENGTHS CHANNEL 6:1 SLOPE 6:1 SLOPE 15' IHGH FLOW On each side of We refaWed charnel, 2 mwa ofsecdlmga CHANNEL will be planted at IT as crn1a. Red Maples, Riva Bitch, Willow Oak and Yellow Poplu will be planted. An mfima¢ (D� 240 tress will be planted. th euncx N.0 PLAN VIEW-CEIANNFL PLANTING PROPOSED CREEK RELOCATION CHAPEL HILL QUARRY ORANGE COUNTY, N.C. wuw: CIUM rn+. quaev F AMERICAN STONE COMPANY DO. BOX 30013 � RALEIGH, N.C. 2i622y. VENDOR NO. DATE CHECK NO. 1),1/2E/4E 1 4800090%51: DATE INVOICE CREDIT GROSSAMT ADJ DESC CREDIT DISCOUNT NETAMOUNT 0011.61f311NE: NAP 2501)0 250i)0 L THE ATTACHED CHECK IS IN PAYMENT TOTAL D FOR ITEMS DESCRIBED ABOVE AMERICAN STONE COMPANY CHECK NO. 98-QOJOOO P.O. BOX 30013 Is FIALEIGH, N.C. 27622 DIWEASTPICT DISBURSEMENT ACCT. FRUIT CITIZENS BANK a TRUST CO. VOID SInY DAYS FROM DATE GREENSBORO: NC TNI; .1 PAYTOTHEORDEROF: OATS CHECK AMOUNT NC DENR AMERICAN STONE COMPANY RALEIGH NC 2761.1 EGOT A//B V AUTHORDED SIONATVRE / 1b ' i i ttl'll I up i t'7 !I u I tt! it I, ! I,I t- ,°nl I i, d. It S t 11 : p t: I- 1. Ilt: i> t utlu i.tn. ilri t�d..f d I e I r ! � t it "f, ! t� u i ! L,,.. .., t....: 1 t I II t. ,nry t� 1 t $ I ,dt t '. II a„.�w�nnL,a,u tiiiL„u.11,a�i,.�fl�ulu,in�lt.a, z I .:I t � . ...E ... . ...... ... § ' Altll�, t ,... ,.,.a.u. ntil: to:, Ii. e.Lub ui. u6�iit� o .. ,m I �I w!:u!nuu�. m .' s. .. :.... �. ... ...L r. nr,a-suu l��uiiwe: li.� e L.. i'i , 1111116HIi ..i. a E � � I hI I i' II t � �+,7ilntl:Ir � � �' � � I I i;•. l,ulu� .:., ........ i . pi•4, JI�II;AIII{».i{ o � W s JIM g� i REFER TO PLANTING SCHEDULE FOR SEEDING INSTRUCTIONS. BERM CROSS SECTION NOT TO SCALE OFTIN EENDI AT M. DAVIS �r PLACE MATERIAL FROM EXCAVATION ON DOWNHILL SIDE OF FLOW. USE ADDITIONAL 2' MIN FILE TO ACHIEVE SPECIFIED HEIGHT AND WIDiw i FFk— I--T� SEED AND MULCH DIVERSION CHANNEL AND DIKE I1 III I' IMMEDIATELY AFTER CONSTRUCTION. CHOOSE !IS APPROPRIATE SEEDING MIXTURE FROM THE wN SEEDING SCHEDULE. p�L`,I�i7:71:�t�]►9a�;�yti]u�L[ a `y,�,lI1pEYNL�I�lq!�J se, _ _��`lna�i•+w�A��� wwr- L DAVID & JUANITA McCAULEY PROPOSED CREEK RELOCATION I\\ I N.C. 54ow RIP -RAP LINING i NA. 8c caMPI ale WMETeaue won 02 1 JOANNE CARL BELL MAPPING COMPANY DATE OF PHOTOGRAPHY PAULINE 1 JAN. 14. 1997 SWANN --T—_ r MITE I01, _ Me PolellDr6 OE TIn`° 9+00 I s OF rnnm answE THE Lee¢ a O FILTER BLANKET I&MOM4 NM AaxwcE srunvms 1 CCMCLRS N MIDEIT M IM ME APPRO ➢AN E SECTION M'e-IEamKpRM ME m-DngWdTS PIPE OUTLET STABILIZATION STRUCTURE I VM-ME `.ERDGL WNN - NEM SEA Ilaw WdICNLL GECfETt MRW Ef 192e NOOwnTE FORMIMSIIIPORTIM RNOE OEM COMPILED OUTSIDE TIE tMR OF 00 I MD THEREFORE DD NOT MEET venal£ MY, AcOUR SwaMms [I EXISTING WELL O —20'BUFFER O EXISTING WELL AMERICAN STONE EXISTING WELL LEGEND: PROPERTY ONE---�—r� INDEX CONTOUR �swi PIT MIT F i INTERMEDIATE CONTWR RUPME PIT LIMIT J BOOY OF WATER ` BUFFER BUILDING u BERM FENCE — DIRT ROADS ® TREE LINE PAVED ROADS PIPE — HORIZONTAL CONTROL POINT pH POLE VERTICAL CONTROL POINT Qv SPOT ELEVATION +m` SEDIMENT BASN I:> DPER90N DUCH —» — i> — ALFRED C. PERRY Surface water measures we to be installed according to plan. Areas to be seeded shall be ripped and spread with topsoil (If .rosary), 3' deep. Total seedbed prepared sholl be 4"-6' deep. Loose rocks, root% and other obstructions shall be removed )m the surface so as not to Interfere with the establishment and Untenance of vegetation. Surface for final seedbed preparation, final grades shown, shall be reasonably smooth and uniform. If Og soil test is taken, provide fertilizer and lima according to eding schedule. In addition provide 15 Ib./IOOO sq. ft. of super Militate. If sal test is taken, provide fertilizer and lime accordng to the it test report. Sall tesflyia is recommended. Lime and fertilizer shall be applied uniformly and mixed with e soil during seedbed preparation. WAVER all seeded areas and keep moist until new Wass is tablished. CONSTRUCTION SEQUENCE 1. Obtain mining permit. 2. Clear only a ssary to Instal proposed berms, slit fences, division ditch"% and sediment basin associated with the addition to the exiting access road. 3. Call the Raleigh Regional ONIC4 Land Quality Sector, for on -site inspection. If approved, begin clearing. 4. The future pit area will be cleared in small parcels, opproximotdy 2 acres each. Before clearing of these creas begin, provide diversion hpm If required to divert surface drainage to the existing pit. In oreas where the runoff will naturally drain into the pit. no additional measures are required. 5. Mabtain devices as needed. 6. The bemis are to be seeded according to the seeding schedule upon their completion. After the berms have been solisfoctorlly seeded, the temporary diversion ditches, sM fence and sediment pit are to be removed. ^u tvi11 1998 u � ll 1" = 200' HUO b5x9CA Seu1� a� LL ----,Ilk, s $r wz \\� i - - c=` .. -EtEHr.l oc'oos O e£009 n 9s-Ins �- 0-0flS- + £OLc ZLIS- - + s cc cc - LJ Q W' W iJ �I O H£ 90S -� (D 69 L09 - tJ C� O FL BOS C _ -- - I A 00 u0s — 9£ o0S O 94 lcS LO 0005 -- + IS - - CO a C is VJ J LJ �7 _1 Q LIK O LLZOG - ,J /c coS O 8.'So9� O O J + + Z-b W CL) Ij l- - - LJ s ,. Q X LiI O 8£9oS " -- - — o6gzog - EL86S_ £Zt9 C) O , o O60S M N II ' _ g � O C, O o 005 + s'as -F z L IS - CU - L + O'6IS '- - - FC809 - N s5os o0ls 9 LAND QUALITY SECTION Budget No.: 419 Date Redd: 04124/1992 Operator: AMERICAN STONE CO. Type Security: SURETY Security Number: — Bank: AETNA CASUALTY 6 S4RM City: Debit: Credit: Date Released: Permit No.: Comments: Received by _ HARTFORD,CN $25,000.00 $25,000.00 06W7101 68-02 Name changed to Martin Marietta Aggregates Date Releasedby 'vk �—/s e,&IC4 ate TO: STEVE LUSE NUMBER 419 FROM: SUSAN EDWARDS ( : SUBJECT: AMERICAN STONE COMPANY DATE: 3-30-92 The attached surety bond is hereby transmitted to you for your safekeeping. RECEIVED BY RELEASED BY DATE Please return the above referred surety . RELEASED BY arc-l�i. /7 • %� tl,/n/,r.�...�" DAT k 1 - s o Z^ RECEIVED BYD.ni �(Y{� DATE RELEASED BY: elfdDATE7,/—c�C-%-9c RECEIVED BY: dri� DATE Y " � �— (Released on 3-30-92 by mistake. Returned to Budget on 4-24-92) 41/ 10: STEPE LUST: 4CMP,F,A 417 FROM:. SUSAN EDWARDS SUBJECT: AMERICAV S MNE C04L'A1Y DATE: 3-30-92 The s(otiched s'ured Bond is her.•6v tt'anstnit-Led co you for %our safekeeping.. RECELVEF PY RELEASED BY P.Lcuse it, Cu rn the a601.e VC fe r re:l wt r e. Cv . RELEASED Bd' DRAPE C aECELVED BY RELEASED BY: C�:C�T�/�-t�Y DATE RECEIVED BY:DATE (Released on 3-30-92 by mistake. Returned to Budget on 4-24-92) STATE OF NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT Land Quality Section Bond Pursuant to "The Mining Act of 1971" (G. S. 74-46 through G. S. 74-68) KNOW ALL MEN BY THESE PRESENTS, That American Stone Company a North Carolina corporation and having its principal office at P_O. Box 720, Greensboro,N.C_ in the State of North Carolina , as principal, and Aetna Casualty s Surety Company a corporation organized under the laws of the State of Hartford. Conn. and duly authorized by the Insurance Commissioner of North Carolina to do business in North Carolina, with an office located at p.0_ Box 9695 , in the City of Greensboro, , North Carolina, as surety, are held and firmly bound unto the State of North Carolina in the sum of 'Twenty Five Thousand and no/100 Dollars (525,000.) lawful money of the United States of America, to the payment of which well and truly to be made, we bind ourselves, our heirs, administrators and successors..jofntly And severally, firmly by these presents. Signed, sealed and delivered this 1st day of October 19 82 THE CONDITIONS OF THIS BOND ARE SUCH, That Whereas, the said American Atnn^ Onmpnny conducts or will conduct mining operations in North Carolina as described in the appli- cation for an operating permit which includes a Reclamation Plan as provided in G. S. 74-53 and has obtained approval of this application on the let day of 19 82 from the Department of Natural Resources and Community Development. NOW THEREFORE, if the said American Stone Company shall comply with the requirements set forth in "The Mining Act of 1971" (G,S. 74-46 through 74-68) and with the rules and regulations adopted pursuant thereto and faithfully perform all obli- gations under his approved Reclamation Plan then this obligation shall be null and void; otherwise to be and remain in full force and effect until released by the Page 1 of 2 Department of Natural Resources and Community Development in accordance with G. S. 74-56 or cancelled by the surety. Cancellation by the surety shall be effectuated only upon 60 days written notice thereof to the Department of Natural Resources and Community Development and the operator as provided in G. S. 74-54. ATTEST: Secretary or Asst. Sec. ( Attach ) ( Corporate Seal ) (here of Corporation) AETNA CASUALTY 6 SURETY COMPANY Surety Countersigned at By 2 ! h c President, 74e_ P_idenr; per. North Carolina -,4 a--�.S 8y_ R sident Agent of N.C. Agent and Attorney 1n P Page 2 of 2 62 LIFE&CASOALT' THE SETNA CASUALTY AND SURETY COMPANY Hartford, Connecticut 05115 POWER OF ATTORNEY AND CERTIFICATE OF AUTHORITY OF ATTORNEYS) -IN -FACT KNOW ALL MEN BY THESE PRESENTS, THAT THE RTNACASUALTY AND SURETY COMPANY, ewrporation duly organized under Me laws of the State of Connecticut, Will having its principal office in the City of HeMord, County of Hartford, State of Connecticut, both made, constituted and appointed, and does by theca presents make, constitute and appoint Louis P. Godwin, Shirley Q. Ray or Mark K. Schott - - of Greensboro, North Carolina in true and lawful Anoneyral-in-Fact,wgh Nll power and authority hereby conferred to sign, executor and acknowledge, at any place within the United States, on if the following line be filled in, within Me area there mold. rated , the following imuumengs): by Me/her sole signature and act, any and ell bonds, recognlzances, contracts of indemnity, and other wddnga obligatory in the nature of a bond, recognizance, or conditional undenaking, and any and all consents incidents Memo not exceeding the sum of FIFTY THOUSAND ($50t000.00) DOLLARS - and to bind THE RINA CASUALTY AND SURETY COMPANY, thereby es fully and to the acme extent as If the same were signed by the duly authorized oMcersof THE .ETNA CASUALTY AND SURETY COMPANY, and all Moonset said Anc rmyle)-m-Fam, pursuentto Meauthorcy herein given, are hereby rallied and confirmed. This appointment is made under and by authority of the following Standing Resolution& of said Company whkh Resolutions are new in full force and effect: VOTED'. Thateacti l thelollovempothi Chairman, Vice Chairman, President, Any Exmun eVice Prmidant Any Senior Vice Prmidenl, Any Vice President. Any Assistant Vice President, Any Secretary, Any Assislain Secretary, may from time billows appoint Residers Vice Presidents, Resident Amistsnl Secretarim, Attorneys-in-Fect, end Agenlsto od for and on behalf of the Company and maygivaanymich appointee such authorities his cenificate of authority may prescribe to sign with the Comp rty's name and seal with the Company's seal bonds. recognizances. contracts of indemnity, and other writings obligatory in the naturoole bond, recognizance, or conditional undertaking, and any of Said officers or Me Board of Directors may at any time remove any Such appointee and revoke the power and authority given him. VOTED: Thai ny bond, rmegnitance,contract of indemnity, or writing obligatory in the nature of a bond, recognizance, or conditional undertaking shall be valid and binding upon the Company when let signed by the Chairman, the Vice Chairmen, the President, an Executive Vice President, a Senior Vice President. a Vice President an Assistant Vice President or by a Resident Vice PrmidenL pursuant to Me Power prescribed in the cenMicate of authority of such Resident Vim President, and duly anmted andaealed with the Company's goal by a Secretary or Assistant Secretary Croy a Resident Assistant Secretary, pursuant to the power prescribed in thecer ificste of authority of such Resident Assistant Secretary; or (b) duty executed (under seal, if required) by one or more Anomeys-in-Fact pursuant to the Power prescribed in his or their mind cate or comfit rtse of authority, This Power of Alcorn" and Canigceta of Authority h signed and tested by Imsimllo under and by authority of Me following Standing Resolution voted by the Board of Directors of THE AFTNA CASUALTY AND SURETY COMPANY which Resolution is now in lull force and offed: VOTED: That the signature of each of the following officers: Chairman. Vice Chairman,President. Any Executive Vice President, Any Senior Vice President, Any i ca President, AM Assistant Vice President, Any $ecratery,Any AmistantSmrstary,and thesml of the Company may be affixed by foalmlle to any Power of Worn" or to any cenificate relating Thermo appointing Resident Vice Presicknte, Resident Assistant Smrearim or Anorneye-in-Fed rnrpurposesgnly of executing and anesting bonds and undertakings and otherwdtings obligatory in Me nature thereof, and any such powered attorney orarttfiats burring such laceimilesienature orfaaimile seal shell twit valid and ending upon Me company and my such Power to minuted and anified by such famimile signature and Ieaimile seal shall be valid and binding upon the Company in the future with I eepmt to any bond or undertaking le which It is attached. IN WITNESS WHEREOF. THE SETNA CASUALTY AND SURETY COMPANY has awed this instrument to be Signed by hit Assistant Vice President , and'm corporate seal to be hereto aMxed this 20 th day of October .19 81 .J v••w�l: THE ,ETNA CASUALTY AND SURETY COMPANY rf:z mill Oap, Stele of Connecticut 1 as, Hartford Assistant Vice President County of Hanford1 On this 20th dryer October .19 81 before me personally come R. T. RIPPE to me known, who, being by me duly awom, did deposit and Say: Mrs he/she is Assistant Vice President of THE ATHA CASUALTYAND SURETY COMPANY, the corporation dacrlbed in and which minuted Me above Iostmmenb that he/she knows the seal or said corooration: that Me seal affixed to Me said instrument to soon corporate aeal: and Met he/she executed Me mid Instrument on babel/ of Me corporation by authority of hlsMm office under the Standing RmMutions therein. mmmsim Vxprm MerM it. 19 N 8(I otary Public CERTIFICATE I, the undersigned, Secretary of 1HEATNA CASUALTY AND SURETY COMPANY, a stock corporation of the State of Connecticut. DO HEREBY CERTIFY that the foregoing and attached Power of Shorn" and Carroll of Authority remalnsin lull lake and has not born rmokad; ant `-`amore.Mat the Standing Resolutions of the Boarder Directors, as mtfonh In the Certificate of AumuYity, are now in force. Signed and led M Me Home Office of the Company, in Me City of Hertford, Suite nnettlM etsd M. toory of '19 own, BaDretary peimi IN USAL (3-to?Z. fl lk4 ale ...,..,...... STATE OF NORTH CAROLINA�` '~ DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT Land Quality Section Bond Pursuant to "The Mining Act of 1971" (G. S. 74-46 through G. S. 74-68) KNOW ALL MEN BY THESE PRESENTS, That American Stone Company a North Carolina Corporation and having its principal office at P. 0. Box 720, Greensboro, in the State of North Carolina , as principal, and United States Fidelity 6 Guaranty Company a corporation organized under the laws of the State of Maryland and duly authorized by the Insurance Commissioner of North Carolina to do business in North Carolina, with an office located at P. O. Box 10936 , in the City of Raleigh , North Carolina, as surety, are held and firmly bound unto the State of North Carolina in the sum Of Twenty Five Thousand and no/100 unllarg ff2s nno no)_ lawful money of the United States of America, to the payment of which well and truly to be made, we bind ourselves, our heirs, administrators and successors jointly and severally, firmly by these presents. Signed, sealed and delivered this 3rd day of October 1980 THE CONDITIONS OF THIS BOND ARE SUCH, That Whereas, the said American Stone Company conducts or will conduct mining operations in North Carolina as described in the appli- cation for an operating permit which includes a Reclamation Plan as provided in C. S. 74-53 and has obtained approval of this application on the 26th day of June 19 80 from the Department of Natural Resources and Community Development. NOW THEREFORE, if the said Anerican Stone Company shall comply with the requirements set forth in "The Mining Act of 1971" (G.S. 74-46 through 74-68) and with the rules and regulations adopted pursuant thereto and faithfully perform all obli- gations under his approved Reclamation Plan then this obligation shall be null and void; otherwise to be and remain in full force and effect until released by the Page 1 of 2 STATE OF NORTH CAROLINA DEPARTMENT OF CONSERVATION AND DEVELOPMENT M i.n i.ng D i.v i. s ion Bond Pursuant to "The Mining Act of 1971" (G. S. 74-46 through G. S. 74-68) KNOW ALL MEN BY THESE PRESENTS, That American Stone CoMijn a Company and having i(:.s principal office at Chapel Hill, North Carolina _ in the State of North Carolina as principal, and _Great American Insurance Company a corporation organized under the laws of the State of New York and duly authorized by the Insurance Commissioner of North Carolina to do business to North Carolina, with an office located at 310 W. Martin Stree , in the City of Raleigh , North Carolina, as surety, are held and firmly bound onto the State of North Carolina in the sum of Twenty—five thousand and no 100 $25000.00)- Dollars , lawful money of the United State of. America, to the payment of which well and truly to be made, we bind ourselves, our heirs, administrators and successors jointly and severally, firmly by these presents. Signed, sealed and delivered this 3rd day of. October , 19 73 THE CONDITIONS OF THIS BOND ARE SUCH, That Whereas, the said American Stone Company conducts or will conduct mining operations in North Carolina as described in the appli- cation for an operating permit which includes a Reclamation Plan as provided in G.S. 74-53 and has obtained approval of this application on the Twenty—sixth day of June , 19 72 from the Department of Conservation and Development. NOW THEREFORE, if the said American Stone Company shall comply with the requirements set forth in "The Mining Act of 1971" (G.S. 74-46 through 74-68) and with the rules and regulations adopted pursuant thereto and faithfully perform all obli- gations under tits approved Reclamation Plan then this obligation shall be null and void; otherwise to be and remain in fall force and effect until released by the Page 1 of 2 CERTIFIED COPY GENERAL POWER OF ATTORNEY No........ ....—........ .... — Know all Men by these Presents: That UNITED STATES FIDELITY AND GUARANTY COMPANY, a correction organized and existing under the law of the State of Maryland, and having its puncipal office at the City of Baltimore, in the State of Maryland. dace hereby constitute and appoint Leslie A. Stocks of the City of Durham , State of North Carolina its true and lawful steamy illst dWckg<OtXxi for the following purposes, to wit: To sign its new as surety to, and to execute, seal and acknowledge any and A bonds. and to respectively do and perform any and all acts and things set forth in the resolution of the Board of Directors of the said UNITED STATES FIDELDY AND GUARANTY COMPANY, a certified ropy of which is hrem annexed and made a part of this Power of Attorney: and the said UNITED STATES FIDELITY AND GUARANTY COMPANY. through us, is Board of Directors, hereby ratifies and continue all and whatasever the mid Leslie A. Stocks my lawfully do in the pmmims by virtue of them presents. In Whnas Whereof, the said UNITED STATES FIDELITY AND GUARANTY COMPANY bar caused this imtrmoeet to be sealed with in corporate real. duly stunted by the munitions of its Vim President and Assistant Secretary, this 19th day of \��1111f November .A. D. 1971 UNITED STATES FIDELITY AND GUARANTY COMPANY. :t o- ' ':1>, (Signed) en........Jcho..T...W.shad........................... � -r Yite-P,uident. t (SEAL) ,� ,.'r•' Signed) ........ Jack S e, Nennedy.............. 6....... 1 Assistant Secretary. STAIC'(iFI�ARYIdND. BALTIM10ftE CITY. y n: On this 19th day of November , A. D. 19 7L beam m< personally sue John T. West . Via -President of the UNITED STATES FIDELITY AND GUARANTY COMPANY and Jack S. Kennedy . Aerlatant Smerateey, of mid Company, with bath of whom I am mrov.11y acquainted, who being by me severally duly seem, mid that they retitled in the City of Baltimore, Maryland: that they, the said John T. Went and Jack S. Kennedy were rnpectieely &a Vice.P dmi end the Assistant Secretary of the mid UNITED STATES FIDELITY AND GUARANTY COMPANY, eha my pomtion described is and which executed the foregoing Ponce of Attorney: that they mach knew the mal of said corporation: that the seat afhaed.to sold Power d Attorney wait such corporate aeLL that it tau m fired by order of the Baud of Dhectan of said mtpoa- tfoa and tan they signed their oamu thesem by like order as VioaPrwudmt and Assistant Secretary, mtpemively, of the Company. MY mmadmioe eppirn the first day in July, A, D, 19..71 .. (SEAL) (signed) . ....... K90..9a..Jr.Avill....................... Notary Public. STATE OF MARYLAND BALTIMORE CCI'Y, Sct. 1., Robert H. Bougie - Clark of the Superior Cozen of BelHmoro City, which faun is Coen of Record, and bar a seal. do hereby certify that Herbert J. Aull - . Esq" before whom the amexed affidavits were made, and who has thereto subscribed hit tame, war at the time of re doing a Notary Public of the State of Maryland. in and for the City of Baltimore, duly mmmimimad and aware and authorized by law to administer "the and take acbwwledamenu, or prau f of dads in be conceded themle I further oenify that 1 u acquainted with the handwriting of the sefd Nary, and verily believe the signatureto be his assume sigmturc. in rer4nmy, Wbaranf, I hzem set my hand and age tha seal of the Superior Coon of Baltimore Cry, the seem being a Cozen of Raomd, Wa 19th day of November , A. D. 1971 .. '..:Rwbfgrt. Ale.. B9aeR::.:.,:.,.1"-r.., .„,:......._. . .—I SEALI:c."::-'emu:: .'-.._._.-....c.... (Signed3 :5......:;... ......._..... _... . .. - Clerk of Its superior court of Down" Cfry Department of Natural Resources and Community Development in accordance with G. S. 74-56 or cancelled by the surety. Cancellation by the surety shall be effectuated only upon 60 days written notice thereof to the Department of Natural Resources and Community Development and the operator as provided in C. S. 74-54. ATTEST: Secretary or Asst. Sec. ( Attach ) Corpdrate ,Seal ) (here of Corporation) Countersigned at AMERICAN STONE COMPANY Principal Hy 2 /:) R., L President, ice -President, .PaxEnerat-or-zwmer UNITED STATES FIDELITY b GUARANTY COMPANY Surety �2'-L Q / 0 t -� L Resident Agent of N.C. Leslie A. Stocks North Carolina Agent and Attorney in Fact Leslie A. Stocks, Attorney -In -Fact Page 2 of 2 Department of Conservation and Development in accordance with C.S. 74-56 or cancelled by the surety. Cancellation by the surety Shall be effectuated only upon GO days written notice thereof to Lite Department of Conservation and Development and cite operator as provided in G.S. 74-54. A'I"IEST: Secretary or Asst. Sec. Attach ( Corporate Seal ) (Ilk re 'cl: Corporation) Countersigned at AMERICAN STONE COMPANY Principal By President, V" - , Partners, or Owner GREAT AMERICAN INSURANCE COMPANY _ Surety North Carolina. ny le s l de i Ages of N.C. William J. W dPgent and ALI: y Lf6aer Page 2 of 2 GREAT AMERICAN INSURANCE COMPANY The number of persons authuriTed New York, New York by this power of attorney is not No. 0-8182 more than Sg POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: That the GREAT AMERICAN INSURANCE COMPANY, a corporation organized and existing under and by virtue of the laws of the State of New York, does hereby nominate, constitute and appoint the person or persons named below its true and lawful attorneyimfacl or aUorneys-in-fact, for it and in its name, place and stead to execute in behalf of file said Company, as surety, any and all bonds, undertakings and contracts of suretyship or other written obligation in the nature thereof: provided that the liability of the said Company on any such bond, undertaking or contract of suretyship executed under this authority shall not exceed the hour stated below. Name Address Limit Of Power HARRY W. MOORE MERRITT JONES ALL OF ALL EARL JOHNSON VICK C. MOORE RALEIGH, NORTH CAROLINA UNLIMITED WILLIAM J. WARD JOHN N. ➢UNCAN, JR. This Power of Attorney revokes all previous powers issued in behalf of the altorneypifin-fact named above. IN WITNESS WHEREOF the GREAT AMERICAN INSURANCE COMPANY has caused Ihese presents to be signed and arrested by its appropriate officers and its corporate seal hereunto affixed this 17 day of July 1972 Attest GREAT AMERICAN INSURANCE COMPANY i:.v.xv'w or "•jpO Secretary d Vice President STATE OF CALIFORNIA, COUNTY OF LOS ANGELES — ss: On this 17th day of Julyr1972 , before me personally appeared JOHN W. HIRSCHMANN, to me known, being duly sworn, deposes and says that he resided in Pasadena, California, that he is the Vice.Presidenl of the Great American Insurance Company, the Company described in and which executed the above instrument; that he knows the seal of the said Company; that the seal affixed to the said instrument is such corporate seal that it was so affixed by authority of his uffice under the By-laws of said Company, and that Ire signed his name thereto by like authority. rnn�ni OFFICIAL SEALmnimy VOTARY PUA.BLIC OITTMEYER NOTARY PRINCIPAL OFFICE IN g V RINANG OFFICE IN ' LOS ANOELEE COUNTY �My Commission Expires1Jam 21, 1975 1 „ This Power of Attorney is granted under and by authority of Article IV of the By-laws of the Company, extracts of which read as follows: ARTICLE IV. Officers: Powers and Duties. - Section 4.... The President... shall also have power and authority, from time to time, to aptwint and fix the compensation of one or more attorneys-m-fact, to prescribe rheir respective duties and the respective limits of their authority and to revoke any such appointment, at any time, in his discretion. Section 5.... the several Vice Resident... shall act, in the order of their appointment, in the place of The Jtresidehr exercising all his powers and performing his duties, during his absence or disability. This Power of Attorney is signed and sealed by facsimile under and by authority of the following Resolution adopted by the Board of Directors of the Great American Insurance Company at a meeting duly called and held on the loth day of September, 1970. RESOLVED, that the Company seal and the signature of any officer authorized by the By -Laws may be affixed by facsimile to any power of attorney and revocation of any power of attorney or cerliftsue of either given for the corrosion of any bond, undertaking, compact ofsuretyship or other written obligation in the nature thereof, such signature and seal, when so used being hereby adopted by the Company in the original signature of such officer and the original seal of the Company, to be wild and binding upon the Company with the .wine force and effect as though manually affixed. CERTIFICATION 1, W. C. BECK, Se ere lary of Great American Insurance Company, do hereby ter l ify that the foregoing Power of AIT Orley, (he above quo led abet roots of Sect runs 4 and 5 of Article IV of the By-laws, and the Resol a tiun of the Board of Direr l ors of Septe mher Id. 1970, have not been revoked and are now in full force and effect Signed and sealed this 3rd day of October 19 737 1 `•R.,��,�! wage W721 ( Secretary 4i'ti ,1 A.N. SMEARMAN W PT. CLAIMS C. THOMAS GOWER SUPT. ACCWNTING CHARLES R. SWATY SUPT. CASUALTY 3 � •AND ` 13f�•'1 UNITED STATES FIDELITY GUARANTY COMPANY- ` 31101 OLD WAKE FOREST RD.'211 (� .� o- P.O. emx 17300 RALEIGH, NORTH CAROLINA 27619 M.6, NORVELL. JR., MAUAGCR TELEPHONE: 91HR2-1313 PAUL M. SIMSON SUPT. FIDELITY SURETY August 18, 1982 JOHN W. FOSTER. JR. SUPT. FIRE. MARINI MULTI -LINE CHARLES E. SMITH SUPT. INWRANCE ENGINEERING 6 MUDI DWIGHT H. CARTER SUPT. LIFE North Carolina Department of Natural Resources and Community Development 512 North Salisbury Street Raleigh, North Carolina 27604 Subject: - - American Stone Company Dear Sir: The U.S.F.S G. Company serves as surety on the above mentioned Reclamation Bond issued effective 10-3-80 in the amount of $25,000. According to the bond form, we must give you sixty days written notice in order to cancel this bond. We are therefore serving this notice on you and request that you confirm the cancellation date in the enclosed self-addressed, stamped envelope. ILJJIe"0IJ s+J,"4 :7 w 1 ruf/bn AUG 23 1982 Geological Survey Section Best regards,, '/Q'- 4 Michael McClanahan Bond Department PALE16R 314,11 UA S, North Carolina Department of Natural Resources &Community Development James B. Hunt, Jr., Governor Joseph W. Grimsley, Secretary October 5, 1982 Mr. R. Paxton Badham, Jr. Auerican Stone Ccinpany P. 0. Box 720 Greensboro, North Carolina 27402 Dear Mr. Badhaztt: We have received the $25,00.00 surety bond. Thank you for your attention to this matter. �M cc: John Holley DIVISION OF LAND RESOURCES Stephen G. Conrad, Director Telephone 919 733-3833 incerely, alines D. Simons, C.P.G.S., P.E. Mining Specialist IAND QUALITY SECZ'ICN Geological Survey Section-733.2423; Geodetic Sect ion•733.3836; Land Quality Section-733.4574; Piann�ng and Inventory Section-733.3833; Land ResourCes Information Service-733-2090 Box 27687 Raleigh 27611.7687 POST OFFICE BOX 720 / GREENSBORO, NORTH CAROLINA 27402 / (919) 674-2245 September 24, 1982 Mr. .dames D. Simons Mining Specialist Land Quality Section North Carolina Department of Natural Resources P. 0. Box 27687 Raleigh, North Carolina 27611-7687 Re: Reclamantion Bond for American Stone Company Dear Mr. Simons: SEP ' 7 1982 BIND QUALITY SECTION Please find enclosed a properly executed Reclamation Bond for the above company, with Aetna Casualty and Surety Company as surety, which is written pursuant to the North Carolina Mining Act. Let us know,if any additional information is needed. Thank you for your attention to this matter. Sincerely, AMERICA/N� STONE COMPANY IZ. f Paz.. Q � . R. Paxton Badham, Jr. RPB,3r/ds Enclosure American Stone Company P. O. Box 720 Greensboro, N, C. 27402 September 6, 1972 Mr. J. Craig McKenzie State Mining Engineer Mining Division N. C. Department of Natural and Economic Resources P. 0. Box 27687 Raleigh, North Carolina 27611 Dear Mr. McKenzie; We have attached the signed Assignment of Savings Account form in lieu of a Surety Bond as stated in your letter of July 17, 1972. Many thanks for your help in this matter and I trust that you will find everything in order. Yours truly, W. L. Buchanan WLB/d s Enclosure valm North Carolina Department of Natural Resources &Communitv Development ment James B. Hunt, Jr., Governor Joseph W. Grimsley, Secretary August 24, 1982 Mr. R. P. Badhan A1lerican Stone Canpany P. 0. Box 720 Greensboro, North Carolina 27402 RE: Reclamation Bond Cancellation Dear Mr. Badham: DIVISION OF LAND RESOURCES Stephen G. Conrad, Director Telephone 919 733.3B33 We have recently received notice from the U. S. Fidelity of Guaranty CcnTpany of their intent to cancel your $25,000 surety bond on or about October 18, 1982. Since a surety is needed to maintain the validity of your mining permit, please substitute a surety before this cancellation and notify this office of the change. I am enclosing a bond fonn for this purpose. Thank you for your cooperation. S' erely, ames D. Simons, C.P.G.S., P.E.Mining Specialist LAD QUALITY SECTION JDS:gf cc: John Holley Geological Survey-733.2423; Geodetic Survey-733-3836; Land Quality-733-4574; Earth Resources Ptanning-733.3833; !_and Resources Information Service--733.2090 Box 27687 Raleigh NC 27611-7687 An Equal Opp ortunity A(firm alive Acrion Employer August 24, 1982 Mr. Michael McClanahan Bond Deft U. S. Fidelity and Guaranty CcmPanY P. 0. Box 17300 Raleigh, North Carolina 27619 RE. Bond No. 65-01.30--10712-80-3 Anerican Stone CagxM Dear Mr. McClanahan: We received mtice of the above cancellation of August 19, 1982. Cancellation may beccube effective 60 days hence on octcber 18, 1982. Please advise should any change in this status oomr. Sincerely, James D. Simorm, C.P.G.S., P.E. Mining Specialist LAM QUALTTY SECTION m % L R E C G W E D UNITED STATES FIDELITY AND GUARANTY COMPANY 3801 OLD WAKE FOREST RO. AUG 9 i9 �( P.O. BOX 77300 RALEIGH, NORTH CAROLINA 27619 �) R1,A1��TF9i • M.B. NORVELL. JR.. MANAGER 11 11 TELEPHONE: 9F9f872-1313 A.N. SMEARMAN JOHN W. FOSTER, JR. SUPT. CLAIMS SUPT. FIRE, MARINE& MULTI -LINE C. THOMAS GOWER CHARLES E. SMITH SUPT, ACCOUNTING SUPT. INSURANCE ENGINEERING & AUDIT CHARLES R. SWATY PAUL M. SIMSON DWIGHT H. CARTER SUPT, CASUALTY SUPT. FIDELITY SURETY SUPT, LIFE August 18, 1982 North Carolina Department of Natural.Resources and Community Development 512 North Salisbury Street Raleigh, North Carolina 27604 Subject: 65-0130-10712-80-3 - American Stone Company Dear Sir: The U.S.F.& G. Company serves as surety on the above mentioned Reclamation Bond issued,effective 10-3-80 in the amount of $25,000. According to the bond form, we must give you sixty days written notice in order to cancel this bond. We are therefore.serving.this notice on you and request that you confirm the cancellation date in the enclosed -self-addressed', stamped envelope. i• r MM/bh AUG 23 1982 Geological Survey Section Best regards, Michael McClanahan Bond Department RALEIGH 3 56-811 eye[.*.1 cr:'• p� ny • , m ea„i.: ,:t.4: :e,; , i. , icro_. qn: .o 4;... ,,c cr.r.` ,. {Z6fP J .aL•.q:�iuF a.J. �.. ..,J ':,,: ':..: '..:C G� : Ad ....7:.' '.f :. : . ...0 G;: lg:fj f ':dl.•: rk A�,ANorth Carolina Department of Natural IR® Resources &Community Development Jarnes B. Hurt, Jr., Goverrlor Howard N. Lee, Secretary September 25, 1980 Nor. R. P. Badham American Stone Company P. 0. Box 720 Greensboro, North Carolina 27402 RE: Mine Reclamation Surety Bond Dear Mr. Badham: DIVISION OF LAND RESOURCES Stephen G. Conrad, Director Box 276B7, llateioh 27G11 1 cicphonu 919 733-3833 We have received the substitute $25,000.00 surety bond. Thank you :for your attention to this matter. Sa.h.cerely, , ' � /James D. Simons 'Mining Specialist. JDS:pg CC. John I-10.1ley Geological Survey Section-733.2423; Geodetic Survey Section-733-3836; Land Quality Section-733-4574; Planning and Inventory Section-733.3833; } Land Resources Inlormation Servlce-733.2090 iAn EQun! Orrorruniry Allirmorive Action Employer �AA North Carolina Department of Natural ®� Resources &Community Development James B. Hunt, Jr., Governor HOwayd N. Lee, Secretary September 16, 1980 Mr. Leslie A. Stocks Atlas Realty and Insurance Company P. 0. Box 1131 Durham, North Carolina 27702 RR: American Stone Company Reclamation Bond Dear Mr.. Stocks: DIVISION OF LAND Ill -SOURCES Ste;}hen G. Coorad. Director fiuR 7.7687, Re{cigh 27611 1 eb'rhom- 9 i 9 733-3833 As requested, I am enclosing the required bond form. Please have the completed form returned to this office. Sincerely', J /James D. Simons 1., 6lining Specialist JDS:pg Geulorticot Survey Section-733.2423; Geodetic Survey Section-733-3836; Land Ouafity Section--733.4574; Planning and Inventory Section-4313833: Land Resources Information Service--733-2090. An f.qualOppurruniry Allirmolive Acliun Lmployer ATLAS Realty & Insurance Company TEL. (919) 682-6191 OR 682-0425 . TRUST BUILDING--P. 0. BOX 1131 • DURHAM, N. C. 27702 LESLIE A. STOCKS�,1';<< Vice President and General Manager September 1 1 , 1980 ,' ' . "� 1`'� Mr. James D. Simons_ Mining Specialist c/o N. C. Department of Natural. Resources & Community Development Box 27687 Raleigh, N. C. 27611 REF: American Stone Company Reclamation Bond Dear Mr. Simons: We are writing Amer can,'Stone Company's relcamation bond effective October 3, 1980 in the amount of $25,000. through United States Fidelity & Guaranty.Company. I would" -appreciate it`if you could forward us the bond form to be executed';iby American Stone Company and United States Fidelity & Guaranty Company as surety to comply with your requirements. Thank you for your immedi'atel'.attention to this matter and I look for- ward to receiving the requiredi`form"�of-bond at.your earliest convenience. Please mail this bond form to me atzP. 0. Box 1131, Durham.27702. Very truly yours, Leslie A. Stocks LS/cc AT L A S can shoulder all your insurance needs North Carolina Department of Natural V4W Resources &Community Development James B, Hunt, Jr., Governor Howard N. Lee, Secretary August 18, 1980 Mr. R. P. Badham American Stone Company P. 0. Box 720 Greensboro, North Carolina 27402 RE: Bond Cancellation Dear Mr. Badham: DIVISION OF LAND RESOURCES Stephen G. Conrad, Director We have received notice from the Great American Insurance Companies of their intent to cancel your $25,000.00 reclamation surety bond effective October 3, 1980. Please indicate what arrangements will be made to provide a continuous surety in order to maintain the validity of the mining permit. Your attention to this matter is appreciated. i ncerely, James D. Simons Mining Specialist I JDS: pg Uox 27087, Ralolpn 27DI I TaloVlionn 919 73331333 Oeoloijicd�si'ivey 6AVWn-7a3d423: 6eadiAd Solvay 5kcti0n—J333P'.and evil Section-733.4574: Planning am l nwnWry Sect ion-7333E33: Land R,sources 11 'on Sorviw—M 2000 •^COva(( nadw Acoan l;mPrVYOr t AI G"WM rW€UCAN INSURANCE CMPANIE5 A Subsidiary of American Financial Corporation .duly 31, 1980 RIUM34 State of North Carolina AUG .5 12bO Department of Conservation and Development Mining Division Raleigh, NC 27602 LAND QUALITY SECTION Re: Bond No. 6 19 04 14 American Stone Company Greensboro, North Carolina $25,000 Bond Pursuant to "The Mining Act of 1971" Dated October 3, 1973 Gentlemen: Pursuant to conditions contained in the above bond, Great American Insurance Company desires to be relieved of its liability effective October 3, 1980. Yours very truly, (Ms) Louise Goodwin, Attorney -in -fact ,LGJbh ` cc: American Stone Co. P. 0. Box 5-1-0 -7w Greensboro, NC 27402 cc: Moore & Johnson Agency, Inc. P. 0. Box 10367 Raleigh, NC 27605 401 OBERLIN ROAD, P.O. BOX 12600, RALEIGH, NORTH CAROLINA 27605, TEL; (919) 821-3900 First -Citizens Bank & 'Trust Company ESTABLISHED 1690 Greensboro, North Carolina CHARLES K URCMURCM 0A+•11=M AND AoIw.r MAN A=•+ October 8, 1973 Mr. J. Craig McKenzie State Mining Engineer Mining Division Department of Natural and Economic Resources Box 27687 Raleigh, North Carolina 27611 Re: American Stone Company Savings Account No. 571 Dear Mr. McKenzie: This is to acknowledge receipt of your letter in which you stated that the North Carolina Department of Conservation and Development has released the assignment on the above account. Thank you for advising us on this matter. Yours very KtruVA+-�-`""-� K/U/p4ch Vice President and Resident Manager CKU/dr October 3, 1973 1:r. C. K. Upchurch Vice President and nesident manager First -Citizen Bank & Trust Company Groaasboro, North Carolina Res Savings account number 571 Dear 11.1r. Upchurch: The assignment of a savings account 0571 entered the 5th day of August; 1972 by American Stone Cony and the North Carolina Department of Conservation and Development is hereby released. An.wican Stone Company has supplied a Surety Bond in the amMMt, of Twenty—five thousand ($25:000.00) 3n lieu of this aesiMment of a savings account. - Yours very truly, J. Craig McKenzie State 1-I1ni.ng Engineer Mining Division J(213 VBl CCs 13r. N. P. Badham, Pres. Americen Stone Company October 2, 1973 Mr. R. P. Badham, Pres. American Stone Company P. 0. Box 720 Greensboro, North Carolina 27402 Dear Mr. Badham: I have received your request for forms to be used in securing a.Surety Bond in the amount of T%,;enty five thousand ($25,000.00) dollars. This Bond is to be in lieu of the assignment of a.savings account #571, entered the 5th day of August, 1972 by American Stone Company and the North Carolina Department of Conservation and Development. I will release this assignment upon receipt of the completed Surety Mond. Yours very truly, J. Craig McKenzie State raining Engineer Mining Division JCM:vsl. NCSCPM � State of North Carolina Department of Environment, Health, and Natural Resources 512 North Salisbury Street + Raleigh, North Carolina 27604 James B. Hunt, Jr., Governor April 16, 1993 Jonathan B. Howes, Secretary Ms. Carole Cameron Martin Marietta Aggregates P.O. Box 30013 Raleigh, N.C. 27622 RE: Permit No. 68-02 American Stone Company Chapel Hill Quarry Orange County Dear Ms. Cameron: Your application for renewal and modification of Permit No. 68-02 for Chapel Hill Quarry in orange County has been approved. The modification was to increase the permitted acreage from 100 to 118 acres. A copy of the renewed and modified permit is enclosed. . The conditions in the permit renewal and modification were based primarily upon the initial application. Modifications were made as indicated by the renewal and modification requests and as required to insure compliance with The Mining Act of 1971. The new expiration date is April 16, 2003. 1 would like to draw particular attention to Operating Conditions Nos. 1, 3, 8 and 12. As a reminder, your permitted acreage at this site is 118 acres and the amount of land you are allowed to disturb at any one time is 56 acres. Please review the renewed and modified permit and advise this office at (919) 733-4574 should you have any questions concerning this matter. Sin rely, cy Davis, E.I.T. Mining Specialist Land Quality Section TED/tls Enclosure cc: Mr. John Holley P.O. Box 27687, Raleigh, North Carolina 27611.7687 Telephone 919-733.4984 Fax 1 90-733-0513 An Equal Opportunity Affirmative Action Employer ta SO%rwdedllo%pau-mm p■pe D EPARTMENT OF ENV = RONMENT H EALTH AND NATURAL RESOURC E S D = V = S = ON OF LAND RESOURCE S LAND QUAL = TY S ECT = ON P E R M = T for the operation of a mining activity In accordance with the provisions of G.S. 74-46 through 68, "The Mining Act of 1971," Mining Permit Rule 15A NCAC 5 B, and other applicable laws, rules and regulations Permission is hereby granted to: American Stone Company Chapel Hill Quarry orange County - Permit No. 68-02 for the operation of a Crushed Stone Quarry which shall provide that the usefulness, productivity and scenic values of all lands and waters affected by :.this mining operation will receive the greatest practical degree of protection and restoration. MINING PERMIT EXPIRATION DATE: April 16, 2003 Page 2 of 10 In accordance with the application for this mining permit, which is hereby approved by the Department of Environment, Health and Natural Resources hereinafter referred to as the Department, and in conformity with the approved Reclamation Plan attached to and incorporated as part of this permit, provisions must be made for the protection of the surrounding environment and for reclamation of the land and water affected by the permitted mining operation. This permit is expressly conditioned upon compliance with all the requirements of the approved Reclamation Plan. However, completed performance of the approved Reclamation Plan is a separable obligation, secured by the bond or other security on file with the Department, and may survive the expiration, revocation or suspension of this permit. This permit is not transferable by the permittee with the following exception: If another operator succeeds to the interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise, the Department may release the permittee from the duties imposed upon him by the conditions of his permit and by the Mining Act with reference to the permitted operation, and transfer the permit to the successor operator, provided that both operators have complied with the requirements of the Mining Act and that the successor operator agrees to assume the duties of the permittee with reference to reclamation of the affected land and posts a suitable bond or other security. In the event that the Department determines that the permittee or permittee's successor is not complying with the Reclamation Plan or other terms and conditions of this permit, or is failing to achieve the purposes and requirements of the Mining Act, the Department may give the operator written notice of its intent to modify, revoke or suspend the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. The operator shall have right to a hearing at a designated time and place on any proposed modification, revocation or suspension by the Department. Alternatively and in addition to the above, the Department may institute other enforcement procedures authorized by law. Dgf initions Wher,aver used or referred to in this permit, unless the context clearly indicates otherwise, terms shall have the same meaning as supplied by the Mining Act, N.C.G.S. 74-49. Modification April 16, 1993: This permit has been modified to increase the permitted acreage from 100 to 118 acres as indicated on the Mine Map dated January 1989 and last revised January 28, 1993. Page 3 of 10 Expiration_ Date This permit shall be effective from the date of its issuance until April 16, 2003. Conditions This Permit shall be subject to the provisions of the Mining Act, N.C.G.S. 74-46, et. seq., and to the following conditions and limitations: OPERATING CONDITIONS: 1. Wastewater and Quarry Dewatering A. Any wastewater processing or mine,dewatering shall be in accordance with the permitting requirements and rules promulgated by the N.C. Environmental Management Commission. B. Any stormwater runoff from the affected areas at the site shall be in accordance with any applicable permit requirements and regulations promulgated by the Environmental Protection Agency and enforced by the N.C. Environmental Management Commission. It shall be the permittee's responsibility to contact the Water Quality Section, Division of Environmental Management, to secure any necessary stormwater permits or other approval documents. 2.' Air Quality and Dust Control A. Any mining related process producing air contaminant emissions including fugitive dust shall be subject to the requirements and rules promulgated by the N.C. Environmental Management Commission. B. During quarry operation, water trucks or other means that may be necessary shall be utilized to prevent dust from leaving the permitted area. 3. BuffeK Zones A. Any mining activity affecting wetlands shall be in accordance with the requirements and regulations promulgated and enforced by the U.S. Army Corps of Engineers. B. Sufficient buffer (minimum 40 foot undisturbed) shall be maintained between any affected land and any adjoining waterway to prevent sedimentation of that waterway from erosion of the affected land and to preserve the integrity of the natural watercourse. Page 4 of 10 The buffer zones shown on the Mine Map dated January 1989 and last revised January 28, 1993 shall be maintained to prevent caving of any adjoining property and to allow grading of the side slopes to the required angle. These buffer zones, with the exception of the installation of required sediment control measures and earthen berms, shall remain undisturbed. 4. Erosion and Sediment Control A. Adequate mechanical barriers including, but not limited to diversions, earthen dikes, brush barriers, silt check dams, silt retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land disturbance and maintained to prevent sediment from discharging onto adjacent surface areas or into any lake or natural watercourse in proximity to the affected land. The erosion and sediment control measures indicated on the Mine Map dated January 1989 and last revised January 28, 1993 shall be installed andmaintainedto prevent off site sedimentation. An erosion and sediment control plan(s) shall be submitted to the Department for approval prior to any land disturbing activities not indicated on the revised erosion control plan or mine maps submitted with the approved application for a mining permit and any approved revisions to it. Such areas include, but are not limited to, expansion outside of the initial pit area, creek crossings, or expansion of overburden disposal areas. 5. Groundwater Protection Groundwater monitoring wells shall be installed and monitored as deemed appropriate by the department. 6. Graded Slopes and Fills A. The angle for graded slopes and fills shall be no -.� greater than the angle which can be retained by vegetative cover or other adequate erosion control measure, structure, or device. In any event, exposed slopes or any excavated channels, the erosion of which may cause offsite damage because of siltation, shall be planted or otherwise provided with groundcover, devices or structures sufficient to restrain such erosion. Page 5 of 10 7. W B. overburden cut slopes along the perimeter of pit expansions shall be graded to a minimum 2 horizontal to 1 vertical or flatter and shall be stabilized within 60 days of completion. Furthermore, a minimum ten (10) foot wide horizontal safety bench shall be provided at the top of the rock and at the toe of the overburden slope. Surface Drainage The affected land shall be graded so as to prevent collection of pools of water that are, or likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or installed when required to prevent such conditions. Blasting The operator shall provide to the Department a copy of the findings of any seismic studies conducted at this facility. The operator shall make every reasonable effort to incorporate the studies' recommendations into the production blasting program. The following blasting conditions shall be observed by the operator to prevent hazard to persons and adjacent property from thrown rock or vibrations: A. In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity of any component of ground motion shall not exceed 1 inch per second at the immediate location of any building outside of the permitted area regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building outside of the permitted area. The operator shall monitor each blast with a seismograph. B. Airblast overpressure shall not exceed 128 decibels linear (DBL) as measured at the immediate location of any regularly occupied building such as any dwelling house, church, school, public building, or commercial or institutional building. C. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the guarded area or the levels in Items A and B above are exceeded, the operator shall report the incident to the Department immediately and further use of explosive at the site shall be immediately suspended until the following actions have been taken: Page 6 of 10 M 10. 1. A thorough investigation as to the cause(s) of the incident shall be conducted. 2. A satisfactory report detailing the investigation shall be provided to the Department within 10 days of the incident. Said report shall, at a minimum, document the cause(s) of the incident along.with technical and management actions that will be taken to prevent further incidents. The report shall meet with the approval of the Department before blasting may resume at the site. Failure to take corrective measures to prevent flyrock and repeated instances of flyrock shall be considered a violation of this permit. D. The operator shall maintain records on each individual blast describing: the total number of holes; pattern of holes and delay of intervals; depth and size of holes; type and total pounds of explosives; maximum pounds per delay interval; amount of stemming and burden for each hole; and blast location. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. E. The operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which notice is requested. High Wall Barrier A physical barrier consisting of large boulders placed end - to -end or fencing shall be maintained at all times around the perimeter of any highwall to prevent inadvertent public access. In addition, a minimum 10 foot wide horizontal safety bench shall be provided at the junction between the top of rock and the toe of the overburden cut slope. Visual Screening :qaA. Existing vegetation shall be maintained between the mine and public thoroughfares to screen the operation from the public. Additional screening methods, such as constructing earthen berms, shall be employed as deemed appropriate by the Department. B. Berms shall be located and constructed as shown on the Mine Map dated January 1989 and last revised January 28, 1993. In addition to grasses, loblolly and/or Virginia pines shall be planted as deemed appropriate by the Department to improve visual and noise buffering. Page 8 of 10 APPROVED -RECLAMATION PLAN The Mining Permit incorporates this Reclamation Plan, the performance of which is a condition an the continuing validity of that Mining Permit. Additionally, the Reclamation Plan is a separable obligation of the permittee, which continues beyond the terms of the Mining Permit. The approved plan provides: Minimum Standards As Prodded By G.S. 74-53 I. The final slopes in all excavations in soil, sand, gravel and other unconsolidated materials shall be at such an angle as to minimize the possibility of slides and be consistent with the future use of the land. 2. - Provisions for safety to persons and to adjoining property must be provided in all excavations in rock. 3. All overburden and spoil shall be left in a configuration which is in accordance with accepted conservation practices and which is suitable for the proposed subsequent use of the land. 4. No small pools of water shall be allowed to collect or remain on the mined area that are, likely to become noxious, odious or foul. 5. The revegetation plan shall conform to accepted and recommended agronomic and reforestation practices as established by the North Carolina Agricultural Experiment Station and the North Carolina Forest Service. 6. Permittee shall conduct reclamation activities pursuant to the Reclamation Plan herein incorporated. These activities shall be conducted according to the time schedule included in the plan, which shall to the extent feasible provide reclamation simultaneous with mining operations and in any event, provide reclamation at the earliest practicable time after completion or termination of mining on any segment of the permit area and shall be completed within two years _.._..after completion or termination of mining. RECLAMATION CONDITIONS: 1. Provided further, and subject to the Reclamation Schedule, the planned reclamation shall be to allow the quarry excavation to fill with water, provide a permanent barricade (fence) along the top of any highwall, and grade and revegetate any areas in unconsolidated material. Page 7 of 10 11. Plan Modification The operator shall notify the Department in writing of the desire to delete, modify or otherwise change any part of the mining, reclamation, or erosion/sediment control plan contained in the approved application for a mining permit and any approved revisions to it. Approval to implement such changes must be obtained from the Department prior to on -site implementation of the revisions. 12. Refuse Disposal A. No on -site disposal of refuse or other solid waste that is generated outside of the mining permit area shall be allowed within the boundaries of the mining permit area unless authorization to conduct said disposal has first been obtained from both the Division of Solid Waste Management and the Land Quality Section, Department of Environment, Health and Natural Resources. The method of disposal shall be consistent with the approved reclamation plan. B. Mining refuse as defined by G.S. 74-49 (14) of The Mining Act of 1971 generated on -site and directly associated with the mining activity may be disposed of in a designated refuse area. All other waste products must be disposed of in a disposal facility approved by the Division of Solid Waste Management. No petroleum products, acids, solvents or their storage containers or any other material that may be considered hazardous shall be disposed of within the permitted area. 13. Annual_ Reclamation -Report An Annual Reclamation Report shall be submitted on a form supplied by the Department by February 1 of each year until reclamation is completed and approved. 14. Bonding The security which was posted pursuant to N.C.G.S. 74-54 in the form of a $25,000.00 Blanket Bond is sufficient to cover :the operation as indicated on the approved application. This security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded acreage. 15. Archaeological__Resources Authorized representatives of the Division of Archives and History shall be granted access to the site to determine the presence of significant archaeological resources. Page 9 of 10 2. The specifications for surface gradient restoration to a surface suitable for the planned future use are as follows: A. All areas of unconsolidated material such as overburden or waste piles shall be graded to a 2 horizontal. to 1 vertical or flatter slope and terraced as necessary to insure slope stability. B. Any settling ponds and sediment control basins shall be backfilled, graded, and stabilized or cleaned out and made into acceptable lake areas. C. The processing, stockpile, and other disturbed areas neighboring the mine excavation shall be leveled and smoothed. D. Compacted surfaces shall be disced, subsoiled or otherwise prepared before revegetation. E. No contaminants shall be permanently disposed of at the mine site. on -site disposal of waste shall be in accordance with operating Condition 12A and B. F. The affected land shall be graded to prevent the collection of noxious or foul water. 3. Revegetation Plan: Disturbed areas shall be permanently revegetated according to the Revegetation Plan prepared by Ms. Carole Cameron dated September 14, 1992. , In addition, the permittee shall consult with a professional wildlife biologist with the N.C. Wildlife Resources Commission to enhance post -project wildlife habitat at the site. Page 10 of 10 4. Reclamation Plan: Reclamation shall be conducted simultaneously with mining to the extent feasible. In any event, reclamation shall be initiated as soon as feasible after completion or termination of mining of any mine segment under permit. Final reclamation, including revegetation, shall be completed within two years of completion or termination of mining. This permit, issued September 11, 1972 and renewed on September 27, 19820 is hereby renewed and modified this 16th day of April, 1993 pursuant to G.S. 74-52. By: Charles H. Gardner, Director Division of Land Resources By Authority of the Secretary Of the Department of Environment, Health and Natural Resources 1W Aug-06-97 01:38P Danzigor 919 942-1538 P.01 nPD •J loci 'y0(3Pw0 j,tlw •a $E91 2hb 0016) 'a i°f 4—wo15 -roll) era o� ,- 1 u N Cum l+ r mz g sv�70 �•u�rs a+eBr � Spfi-,^a*m�w1 `�'�rr'J �1i� �rw� �•w��un-nr7, inN1m)dv�1 a��H j�rx�l yc�ww+n 3R]. dOrflYCi71 OrmYf 51j7 �0 (alYt�M',/N� -•tezi (LOL.b-ILe6 (W6) a bfd77Or MOD XVbe 'J .X VY') sl; 1j 5iou°V (rcitib�� ai jMar /p"oe�Wgp �8C+1 wv -rvoo err s� 279 Z �3 ib V% z 6' o z {r o aldv"' n 0`1 y,ra'J l 07 '.� ((_ 1 � r.?,Pdr, °Vd"N ("o�F»1�`I� wa (, smtj ny �rvt •)o,U-CriL � Yir �e1i %LLI aw slay nm� nb� lOi, V�j`lcfWwd �o•na j.La7Y�.�a9 f:`LC G-1 lo"Ja 1 `A0 �q yrYNlaJ l,t*��cq,n,y 1* a c:,alL'° .�, sao(+� CP1�ed,1�'.tva� toy, � s -F�'71h�" C• , 2 ar "� aja+u a iwa W • fin, KTMw aldw�s a� Jay>dj y �M� i�'n �'n1+r3 "�N• sl �at,mt3B�p,,te � �71 LfS �rviri ?H Q7nI)i s�llq"K1'rYf -I' � 71 S ytb .� � � lve7J a21 a�.e tea•+ -rw+, 7xPrr� -,rW �xRb �v+K.�o oroN � �'tmrr*,c3B � >� a79e aas zto� Ink Ta'j ync+vj r%N 7 1M p�h c�s,�a lips iSyrmojS-ZC �vu�dt w,1 Wyk j, t .Wn.SSbi r F'avzA� 1 d°J�� ��� " Z d ss U1 ryn.8n,a vrt.-varvo•a05 -0111 ',Ya)' Afd sv� hW era PG2 d,7ey -vno� C+17) Y\C\Orn Ll �s,�v,aads ON�rr�, c.bbt'�B^v (°�2nyL6•,PA71n1 Jj6 4) s'OtOT t°L -tAl rL c¢ �a� ��3 -� ��'I�e (D3oIs1 a^ a%(Y State of North Carolina (� Department of Environment. Health and Natural Resources e a — Division of land Resources Jonah B. Hunt, Governor p E H N R Jonathon B. Howes, Secretary Charles Gardner, P.G., P.E. %^ Director andState Geologist January 23, 1995 b5 7 � i Mr. Mike E. Kovach Explosives Engineering Department Martin Marietta Aggregates P. O. Box 30013 Raleigh, North Carolina 27622 RE: High Air Blast Value Calculated for the Production Blast' on January 26, 1994 American Stone Company Chapel Hill Quarry Mining Permit No. 68-02 Orange County Dear Mr. Kovach: This office has completed its review of the 42 blast records your company provided for blasts conducted at the above referenced ^ quarry from January 4, 1994 through October 21, 1994. All of the records yielded ground vibration and airblast values within the limits of your mining permit with the exception of one blast. As you are aware, Mr. Tracy Davis of the Land Quality Section calculated an airblast value of 130 DBL at the closest offsite structure for the January 26, 1994 blast. This value is in excess of the maximum airblast limit of 128 DBL specified by Mining Permit No. 68-02, In response to Mr. Davis' request, you sent a letter dated January 6, 1995 addressing how your company intends to address the excessive airblast reading that likely occurred on January 26, 1994. This office has evaluated your letter and concurs with your remedial action plan that has already been implemented. The plan included the following: 1) All blasting/drilling and management personnel attended a. two-day drilling and blasting course, covering all phases of blast layout, loading, blasting and monitoring, in February 1994; 2) Blasting personnel have subsequently decreased the borehole diameter from five and one-half inches to four and one-half inches as the maximum diameter hole drilled on this site for stone production for all future blasts; Geological Sauey section Land 9uoIi�y section Geodetic survey section (919)733-2423 (919)733.4574 (919)733.3836 FAX: (919)733.0900 FAX: 733.2876 FAX: 733-4407 RID, Box 27687. Raleigh, North Carolina 27617-7687 Telephone 919.733.3833 FAX 919-733.4407 An Equal Opportunity Atremgtive Action Employer 50'1recyclod/10%pmt-coravnerpopet 20-d 9E91-zr6 616 J06yzu¢p d65=10 LG-90-6nV 3o Mr. Kovach Page 2 3) Blasting personnel have reduced the explosives load-per.7 hole from a possible maximum of 470 pounds to 325 pounds for all future blasts; 4) Blasting personnel have designed all blasts to detonate only one fully -loaded hole per delay, unless approved,by the Production Manager or Explosives Department, for All future blasts. In addition to the above corrective actions, the following procedures must also be instituted (if not already a part of your company's standard blasting procedures for this site): '•. f 1) A detailed evaluation of geologic conditions along the face and body of each shot shall be conducted and accounted for, prior to all future shots to insure that excess venting of explosive gases does not take place. 2) Hole loading adjustments shall be made for any holes that may be affected by unusual geologic conditions, such as cracks or voids, on all future shots. .t 3) Extreme care shall, be taken in the loading and stemming of all future blast holes at the site and, if any hole has the appearance of not being fully able to confine the explosive charge, all suspect holes shall be covered with a load of crusher fines to further minimize stemming ejection potential. i.S 4) At least one seismograph shall be setup at the closest offsite occupied structure, or as near to it as possible, for all future blasts so that a direct correlation can be drawn between the seismograph recordings and the maximum limits outlined in Hining'Permit No_ 68-02,. 5) A detailed review of the blast logs and seismograph recordings for all future shots shall be completed to determine if the above precautions have been effective in t• r reducing excess venting of explosive gases. If the above precautions prove ineffective, your company must provide the Department additional precautions your company intends to utilize in the future to address this issue. In order to reduce excessive airblast readings in the future, your company is hereby required to adhere to the above recommendations at this site. These recommendations shall be considered as part of the blasting requirements outlined in mining -�• Permit No. 68-02. Rlease gttach a co 0 mining permit for this site „gor future reference Cold BE91-ZV6 616-AaBLZUea d6£=i0 L6-90-6nV Mr. Kovach Page 3 I appreciate your company's acknowledgement of this problem area in your blasting program and your prompt response in addressing this matter. Your company's initiative and responsiveness in this matter should be commended and used as an example by the industry as a whole. State of North Carolina Department of Environment, Health, and Natural Resources Division of Land Resources. )amcs G. Martin, Governer November 24, 1992 Charles H. Gardner, P.C., P,E.. William W. Cobey, Jr., Secretary Director and State G,Wujost Ms. Carole Cameron Martin Marietta Aggregates P.O. Box 30013 Raleigh, N.C. 27622-0013 Re: American Stone Company Mining Permit Renewal Request Chapel Hill Quarry Mining Permit No. 65-02 Orange County Dear Ms. Cameron: e The review has been completed on your renewal request for the above referenced mining permit. The following additional information is required before the review can be completed: 1. The renewal request includes 118 acres to be permitted_ The original permit was issued for approximately 104 acres. The map submitted with the renewal request appears to include approximately 150 acres within the permit boundary. Please clarify the acreage you wish io have permitted at this site and send the appropriate fees to cover any modifications. 2. The direction and extent of the pit expansion for the life of the permit is also needed. It appears that a 401 I� Certification has been issued for the relocation of Phil's Creek. However, please be advised that a major modification must be submitted to and approved by this office before such activities can be initiated. Please note, that due to the location of a critical area watershed downstream from this site, the Division of Environmental Management has voiced some concerns that an individual permit, rather than a general certification, be issued for this site. Please contact Mr. Arthur Mouberry at (919) 571-4700 regarding this matter_ PLEASE BE ADVISED THAT OUR REVIEW CANNOT BE COMPLETED UNTIL ALL OF THE ITEMS LISTED ABOVE HAVE BEEN FULLY ADDRESSED. Gtolrocal Survey Seetion E nd Quality Section Geodetic Surety Section (919) 733-2423 (919) 733-4574 (919) 733.31336 P.O. Box 27697 0 R.11cigh, N.C. 27611-76V + Telephone (919) 733.3833 tpo'd 8E9I-Zt76 6T6 AaB6zuee d6E:Yo L6-9o-13nv W DIVISION OF LAND RESOURCES October 20, 1992 MEMORANDUM TO: Tony Sample, Assistant MinirRg Specia;zt FROM: John Holley, Regional Eng SUBJECT: Chapel. Hill Quarry (68-02) Orange County We have completed our review of the subject revised application and 'Tim's comments are attached. While I agree that there are no problems with the current site or the erosion and sedimentation control plan for the proposed immediate activity limits, I would point out that the acreage to be covered by the permit is not consistent with the submitted map or current file. The current computer record indicates that the existing permit covers 77 acres. That was consistent with the original application for the site, but was changed to about 118 acres when] the permit was last renewed in 1982. Comparing the 1980/82 maps with the current submittal reveals a couple of problems. First, in 1982 the 118 acres consisted of a 100 acre tract along SR 1104 and an approximately 18 acre tract north of Phil's Creek. The". current submittal adds an approximately 32 acre tract to the west off NC 54 that was previously owned by Philip Durham. This means o that instead of 118 acres, the current application appears to cover last S4\ approximately 150 acres. Lastly, the map. rovided with the reneV,al indicat e it e_ xpa th northwest acoY`� v Q 's Cr ek. The maps submitted with the current application seem to restrict pit development to the area between SR 1104 and Q y� Phil's Creek, yet a buffer zone is designated around the entire property boundary indicating the potential for a much more `1 significant affected area. In a conversation with Horace Willson, Ow,, it was noted that they plan only to expand the pit to the east, t` eventually taking in SR 1104 and connecting the pit to the old quarry to the southeast on OWASA property. The direction and extent of pit expansion intended for the life of this permit should be clarified in the application and on the maps. Further, the property to be covered by this permit should be clearly indicated on the map and should be consitent with the application. Depending on what they plan to do with the added acreage and when, the proposal may need to be considered as a. major modification. If there are any questions, please advise. JLH 90-d 9E91-Z-t?5 6'C6-AaBLZUR © d6€=T0 45-90-6n`d Author: Tracy Davis at NROLR0IP Date: 1/8/97 4:31 PM Priority: Normal TO: Charles Gardner TO: Mell Nevils CC: Tracy Davis CC: Tony Sample CC: Judy Wehner Subject: Pre -blast Surveys as Conditions of Quarry Permits ------------------------------------- Message Contents ------------------------------------ Yesterday, I spoke with Mr. Earl Dahzinger who is involved in an ongoing zoning dispute between American Stone (MMA) and OWSA, Chapel Hill and Carrboro (Remember the Rem Malloy blasting complaint in which�p?/ I evaluated 80+ records and a graduate student was his blasting "consultant"?). It seems that MMA wants to double the size of its Chapel Hill Quarry which is alledgedly located in a "protected" watershed. All three local authorities are evaluating this proposed change to the watershed rules (Carrboro seems to be the most concerned). Mr. Danzinger is a consultant working to gather environmental and public safety info on the mining operation. I have given him some information in the past. However, while reviewing an OSM policy guide regarding regulation of coal mines (provided to him by Paxton Badham to show that NC's 1.0 ips limit is half the federal limit), Mr. Danzinger noted that OSM requires the following in Sec. 515(b)(.15)(e) regarding blasting: "The owner/resident must be notified at least 30 days prior to the start of the blasting of how they may request a pre -blast survey..." from the International Society of Explosive Engineers, (216) 349-4004. It goes on to state that if a pre -blast survey is requested, the operator must pay for one to be conducted. Mr. Danzinger asked if we are subject to this federal policy and if we require such surveys in our mining permits. I said no, that OSM regulates coal mining and NC does not have any coal mining; thus, our state law is the only governing mining statute for non -coal mining in NC. I told him that pre -blast surveys are voluntary and are at the discretion of each operator, as there are pros and cons to such surveys and they can be expensive. I noted that as long as the blasting does not exceed our vibration and airblast limits at the closest occupied structure, we feel the public is protected against damage. He seemed to understand but wanted me to ask you if we could begin placing the above as a permit condition ... so that people who had concerns about blasting damage could have the surveys done, and those who didn't care, wouldn't. He felt this would provide some "real" data that could be monitored/evaluated and used, by either side, to support its case, should their be a future dispute. What are your thoughts on including this as a permit condition, so I can inform him should he call me in the future? Thanks! Tracy Author: Beth Chesson at NROLROIP Date: 1/6/97 lzl9 PM Priority: Normal TO: Tracy Davis Subject: phone call Message Contents Tracy Mr. Danziger of Chapel Hill called (942-1638) about mining questions. He is particularly interested in the fed mining law and how the state law overlaps. I think he is getting towards a blasting complaint..... he was asking alot about the requirement noted in the fed law concerning pre -blast surveys. Paxton Badham had given him some federal mining manual dated 1987 with all this info in it. ANyway, he would like for you to call him back. Good luck!! Beth 1 6d f,Rxi�t ` e 25 l ( durna, �+�-- �F�b r�x-CuG) 3�a—�.15°0 _ a � ) � ,& — ;per. avq, d cd-lchL- - oR fey lw ✓UA— � U ems.- - a"J" 4V+" C)P(� G k,2� c, � Vw Akk- dr. . It a Author: Tracy Davis at NROLROIP Date: 1/15/97 8:17 AM Priority: Normal TO: Charles Gardner TO: Mall Nevils TO: Tony Sample TO: Judy Wehner TO: Sim Simons CC: Tracy Davis Subject: Re: Pre -blast Surveys at Quarry Sites ---------------------------------- Message Contents FYI Tracy Forward Header Subject: Re: Pre -blast Surveys at Quarry Sites Author: "Erwin M. Danziger" <emd@ga.unc.edu> at Date: 1/14/97 3:13 PM Internet Thank you for your input. As you said stone quarrys last for decades and that is precisely the reason a pre blast survey would be appropriate , since it would allow one to distinguish damage caused by blasting from damage to due to other zeasonsas specified in the Blasting Guidance Manual. Nevertheless I understand your bosses reluctance to tackle a politically explosive (no pun intended) situation at this time. I was a little disappointed the that your organization is unaware of the very strict zoning in the very real protected Univ. watershed in which this particular mine operates. Had the mine NOT existed prior to the say establishment of the Uviv.watershed regulations, there is no doubt in my mind that it would never have p been permitted in that locate location. However that is the past and we must now look to the future and minimize the environmental damage and prprerty property damage as well as the noise nuisance that has gotten worse in the past two years as the mine increases its noisy equipment. You may wish to contact Mary Willis of the Orange County Planning Office to verify that the mine is indeed located in the protected Univ. watershed. A new Mello Tear quarry located in the Rural Buffer a lower classification of land use was NOT permitted by the county some years ago. Anyway thanks for your help, you seem to be one of the few state employees that is really interested in protecting the citiozens, and is not just governed by the industry from which we need and seek protection. Erwin Danziger MEMO DATE: TO 1' -t SUBJECT: / "'�•"'- ��a,oz tr 714X 'DO"' U O'�Health, North Carolina Department of Environment, ( and Natural Resources A ------------oom - •rn�r x sl a• I -, A < 421 sblW) ,� ,.. ,, ��:: _. { .. �;; ...� �i ., . DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT DIVISION OF LAND RESOURCES LAND QUALITY SECTION RENEWAL P E R M I T for the operation of a mining activity In -accordance with the provisions of G.-.S.-74-46 through 68, "The Mining Act of 1971", Mining Permitting Regulation 15 N.C.A.C. SB,.and other applicable laws, rules and regulations Permission is hereby granted to: Aimerican Store Comrnanw permittee for the. -operation of a crushe-d Slone quarry entitled, C}ZZ-)el Hill Quarry , permit no. 68--2 and located in Orange County, which shall provide that the usefulness, productivity and scenic values of all lands and waters affected by this mining operation will receive the greatest practical degree of protection and restoration. 2 of 6 In accordance with the application for this mining permit, which'is hereby approved by the Department of Natural Resources & Community Development, here- inafter referred to as the Department, and in conformity with the approved Recla- mation Plan attached to and incorporated as pant of this permit, provisions must be made for the.protection of the surrounding environment and for reclamation of the land and water affected by the permitted mining operation. This permit is expressly conditioned upon compliance with all the requirements of the approved Reclmation Plan. However, completed performance of the approved Reclamation plan is a separable obligation, secured by the bond or other security on file with the Department, and may survive the expiration, revocation or suspension of this permit. This permit is not transferable by the permittee with'the following exception: If another operator succeeds to the interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise,the Department may release the permittee from the duties imposed upon him by the conditions of his permit and by the Mining Act with reference to the permitted operation, and transfer. the.permi.t_to..the successor operator,.provided that both operators have complied with the requirements of the Mining Act and that the successor operator agrees to assume the duties of the permittee with reference to reclamation of the affected land and posts a suitable bond or other security. In the event that the Department determines that the permittee or permittee's successor is not complying with the Reclamation Plan or other terms and con- ditions of this permit, or is failing to achieve the purposes and requirements of the Mining Act, the -Department may give the operator written notice of its intent to modify, revoke or suspend the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. The operator shall have right to a hearing at a designated time and place on any proposed modification, revocation or suspension by the Department. Alternatively and in addition to the above, the Department may institute other enforcement procedures authorized by law. Definitions Wherever used or referred to in this permit, unless the context clearly indicates otherwise, terms shall have the same meaning as supplied by the Mining Act, N.C.G.S. 74-49. Conditions The permitted mining operation shall not violate standards of air quality, surface water quality, or ground water quality promulgated by the Environmental Management Commission. This permit shall be effective from the date of its issuance until September 27, 1992 and shall, be subject to the provisions of the Mining Act, N.C.G.S. 74-46, et. seq., and to the following conditions and limitations: 3 of 5 1. Any wastewater processing or mine dewatering shall be in accordance with permit requirements and regulations promulgated by the Division of Environ- mental Management. 2. Any mining process producing air contaminant emissions shall be subject to the permitting requirements and regulations promulgated by the Division of Environmental Management. 3. Sufficient buffer shall be maintained between any affected land and any adjoining waterway to prevent sedimentation of that waterway from erosion of the affected land and to preserve the integrity of the natural water- course. 4.' Adequate mechanical. -barriers including but not limited to diversions, earthen dikes, brush barriers, silt check dams, silt retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land disturbance to prevent sediment from discharging onto adjacent surface areas or into any lake or natural watercourse in proximity to the affected land. 5. The angle .for graded slopes and fills shall be no greater than the angle which can be retained by vegetative cover or other adequate erosion control measure, structure or device. In any event, exposed slopes or any excavated channels, the erosion of which may cause offsite damage due to siltation, shall be planted or otherwise provided with ground cover, devices or structures sufficient to restrain such erosion. b. The affected land shall be graded so as to prevent collection of pools of water that are, or are likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or installed when required to prevent such conditions. 7. The following blasting conditions shall be observed by the operator to prevent hazard to persons and adjacent property from thrown rock or vibrations: A. In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity of any component of ground motion shall not exceed one inch per second at the immediate location of any building regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building. B. Airblast overpressure shall not exceed 128 decibels linear (dBL)- warning, 132 dBL caution, and 135 dBL maximum as measured at the immediate location of any regularly occupied building such as any dwelling house, church, school, public building, or commercial or institutional building. 4 of C. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the guarded area, it shall be reported to the Department immediately, who will conduct a thorough investigation to determine the cause. Failure to take corrective measures to prevent flyrock and repeated instances of flyrock shall be considered a violation of the permit. D. Operator shall maintain records on each individual blast describing: the total number of holes; pattern of holes; depth of holes; total pounds of explosives; maximum pounds per delay interval; amount of stemming and burden"'for each hole; and blast location. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. E. Operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which notice is requested. 8. Sufficient buffer shall be maintained I--tween any excavation and'any adjoining property line to prevent caving of that property and to allow grading of the sideslopes to the required angle. 9. A physical barrier consisting of a fence or boulder barriers, etc., shall be maintained around the perimeter of any quarry highwall. 10. Existing vegetation or vegetated earthen berms shall be maintained between the mine and public_ throughfares whenever practical to screen the operation from public view. 11. An Annual Reclamation Report shall be submitted on a form supplied by the Department on February 1 of each year until reclamation is completed and approved. 12. The security which was posted pursuant to N.C.G.S. 74-54 in the form of $ 2 5 , 000. 00 Blaulket Bonds sufficient to cover the quarry operation as indicated on the approved application. This security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded acreage. 5 of 6 APPROVED RECLAMATION PLAN The Mining Permit incorporates this Reclamation Plan, the performance of which is a condition on the continuing validity of -that Mining Permit. Additionally, the Reclamation Plan'is a separable obligation of the permittee, which continues beyond the term of the Mining Permit. The approved plan provides: Minimum Standards As Provided By G. S. 74-53 1. The final slopes in all excavations in soil, sand, gravel and other uncon- solidated materials shall be at such an angle as to minimize the possibility ' of slides and be consistent with the future use of the land. 2. Provisions for safety to persons and to adjoining property must be provided in all excavations in rock. 3. All overburden and spoil shall be left in a configuration which is in accordance with accepted conservation practices and which is suitable for the proposed subsequent use of the Land. 4. No small pools of water shall be allowed to collect or remain on the mined area that are, or are likely to become noxious, odious or foul.. 5. The revegetation plan shall conform to accepted and recommended agronomic and reforestation practices as established by the N.C. Agricultural Experiment Station and the N.C. Forest Service. 6. Permittee shall conduct reclamation activities pursuant to the ReclamE ion Plan herein incorporateJ. These activities shall be conducted according to the time schedule included in the plan, which shall to the extent feasible provide reclamation simultaneous with mining operations and in any event, initiation of reclamation at the earliest practicable time after completion or termination of mining on any segment of the permit area and shall be completed within two years after completion or termination of mining. RECLAMATION CONDITIONS 1. Provided further, and subject to the Reclamation Schedule, the planned reclamation shall be to allow the quarry excavation to fill with ground water, barricade along the top of any highwall, and grade and revegetate any areas in unconsolidated material. 2. The specifications for surface gradient restoration to a surface suitable for the planned future use are as follows: A. A physical barrier consisting of a fence or boulder barriers, etc., shall be maintained around the perimeter of any quarry highwall. B. Any cut or fill slopes in overburden or other unconsolidated material shall be graded to a 2 horizontal to 1 vertical grade or flatter and terraced as necessary to insure slope stability. 6 of 6 C. The stockpile, office and process plant areas shall be graded and smoothed. . D. Any settling ponds or sediment basins shall either be backfilled and stabilized or cleaned out and made into lake areas. E. No contaminants shall be dumped at the mine site. Scrap metal, trash or other such waste shall be .removed from the site and properly disposed. F. The affected land shall be graded to prevent the collection of noxious or foul water. G. Any excavated, diverted, or disturbed natural channels shall be stabilized. 3. Revegetation Plan: After site preparation, the Folloc,.ing guidelines shall be utilized to revegetate all areas of unconsolidated material. Apply (per acre): 2 tons lime; 1,000 lbs. 10-10-10 fertilizer; 25 -lbs tall.fescue; 50 lbs sericea (unscarified for fall seeding, scarified for spring seeding); Mulch - 1,000 lbs wood cellulose fiber or 2,000 lbs small train straw(40 :ales). Use a ~;vd_o--seeder to apply the above materials if posUih�le. Otherwi-se, prepare a good seedbed and seed conventionally. Cn the steep slopes mulch with 40 bales cf stra,J. per acre. Anchor mulch x,;ith peas and twine, or mulch nettinc. As a seeding alternative use 5 lbs weeping lovegrass instead of fescue vith the sericea. Seed lovegrass between April i.5 and Tune 15. 4. Reclamation Schedule: Reclamation shall be conducted simultaneously with mining to the extent feasible. In any event, reclamation shall be initiated as soon as feasible after completion or termination of mining of any mine segment under permit. Final reclamation, including revegeta- tion, shall be completed within two years of completion or termina- tion of mining. Permit issued this the Z-71::�day. of S .Z:, t A 19J2.g, IF By: StLcphen G. Conrad, Director Division of Land Resources By Authority of the Secretary of the_Department of Natural Resources and Community Development • � ry y�r%�1 i i-'-�Z r � '. State of North Carolina Department of Environment, Health, and Natural Resources 512 North Salisbury Street • Raleigh, North Carolina 27604 James B. Hunt, Jr., Governor .. , April 16, 1993 Jonathan R Howes, Secretary Ms. Carole Cameron Martin Marietta Aggregates P.O. sox 30013 Raleigh, N.G. 27622 RE: Permit No. 68-02 American Stone Company Chapel Hill Quarry Orange County Dear Ms. Cameron: Your application for renewal and modification of Permit No. . 68-02 for Chapel Hill Quarry in Orange County has-been approved. The modification was to increase the permitted acreage from 100 to 118 acres. A copy of the renewed and modified permit is enclosed. The conditions in the permit renewal and modification were based primarily upon the initial application. -Modifications were made as indicated by the renewal and modification requests and as required to insure compliance with The Mining Act of 1971. The new expiration date is April 16, 2003. I would like to draw particular attention to Operating Conditions Nos. 1, 3,- 8 and 12. As a reminder,. your permitted acreage at this site is 118 acres and the amount of land you are allowed to disturb at any one: time is 56 acres. :Please review the renewed and modified permit and advise this office at (919) 733-4574 should you have any questions concerning this matter. Sin rely, cy Davis, E.I.T. Mining Specialist Land Quality Section TED/tls Enclosure cc: Mr. John Holley PO. Box 27687, Raleigh, North Carolina 27611.7687 Telephone 919-733.4984 Fax # 919-73M513 An Equal Opportunity Affirmative Action Employer D EPARTMENT O F ENV = RONMENT H EALTH AND NATURAL RESOURCE S ' D= V= S 2 ON O F LAND RESOURCE S T.AND QUAL 2 TY S E CT 2 ON ., P E R M = T for the operation of a'mining activity In accordance with the provisions of G.S. 74-46 through 68, "The Mining Act of 1971," Mining Permit Rule 15A NCAC 5 B, and other applicable laws, rules and regulations Permission is hereby granted to: American Stone Company Chapel Hill Quarry Orange County - Permit No. 68-02 for the operation of a Crushed Stone Quarry which shall provide that the usefulness, productivity and scenic values of all lands and waters affected by :.this mining operation will receive the greatest practical degree of protection and restoration. MINING PERMIT EXPIRATION DATE: April 16, 2003 Page 2 of 10 In accordance with the application for this mining permit, which is hereby approved by the Department of Environment, Health and Natural Resources hereinafter referred to as the Department, and in conformity with the approved Reclamation Plan attached to and incorporated as part of this permit, provisions must be made for the protection of the surrounding environment and for reclamation of the land and water affected by the permitted mining operation. This permit is expressly conditioned upon compliance with all the requirements of the approved Reclamation Plan. .However, completed performance of the approved Reclamation Plan is a separable obligation, secured by the bond or other security on file with the Department, and may survive the expiration, revocation or suspension of this permit. This permit is not transferable by the permittee with the following exception: If another operator succeeds to the interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise, the Department may release the permittee from the duties imposed upon him by the conditions -of his permit and by the Mining Act with reference to the permitted operation, and transfer the permit to the successor operator, provided that both operators have complied with the requirements of the Mining Act and that the successor operator agrees to assume the duties of the permittee with reference to. reclamation of the affected land and posts a suitable bond or other security. In the event that the Department determines that the permittee or permittee's successor is not complying with the Reclamation Plan or other terms and conditions of this permit, or is failing to achieve the purposes and requirements of the Mining Act, the Department may give the operator written notice of its intent to modify, revoke or suspend the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. The operator shall have right to a hearing at a designated time and place on any proposed modification, revocation or suspension by the Department. Alternatively and in addition to the above, the Department may institute other enforcement procedures authorized by law. Definitions Wherever used or referred to in this permit, unless the context clearly -indicates otherwise, terms shall have the same meaning as supplied by the Mining Act, N.C.G.S. 74--49. ModLfication April 16, 1993: This permit has been modified to increase the permitted acreage from 100 to 118 acres as indicated on the Mine Map dated January 1989 and last revised January 28, 1993. Page 3 of 10 Expiration Date This permit shall be effective from the date of its issuance until April.16, 2003. Conditions This Permit shall be subject to the provisions of the Mining Act, N.C.G.S. 74-46, et. seq., and to the -following conditions and limitations:. OPERATING CONDITIONS: 1. Wastewater and Quarry_ Dewatering A. Any wastewater processing or mine dewatering shall be iri accordance with the' permitting requirements and rules promulgated by the N.C. Environmental Management Commission. B. Any stormwater runoff from the affected areas at the site shall be in accordance with any applicable permit requirements and regulations promulgated by the Environmental Protection Agency and enforced by the N.C. Environmental Management Commission. It shall be the permittee's responsibility to contact the Water Quality Section, Division of Environmental. Management, to secure any necessary stormwater permits or other approval documents. 2. Air_VILality and Dust Control A. Any mining related process producing air contaminant emissions including fugitive dust shall be subject to -the requirements and rules promulgated by the N.C. Environmental Management Commission. B. During quarry operation, water trucks or other means that may be necessary shall be utilized to prevent dust from leaving the -permitted area. 3. Buffer Zones ,`A. Any mining activity affecting wetlands shall be in accordance with the requirements and regulations promulgated and enforced by the U.S. Army Corps of Engineers. B. Sufficient buffer (minimum 40 foot undisturbed) shall be maintained between any affected land and any adjoining waterway to prevent sedimentation of that waterway from erosion of the affected land and to preserve the integrity of the natural watercourse. Page 4 of 10 C. The buffer zones shown on the Mine Map dated January 1989 and last revised January 28, 1993 shall be maintained to prevent caving of any adjoining property and to allow grading of the side slopes to the required angle. These buffer zones, with the exception of the installation of required sediment control measures and earthen berms, shall remain undisturbed. 4. Erosion and sediment Control. A. Adequate mechanical barriers including, but not limited to diversions, earthen dikes, brush barriers, silt check dams, silt retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land disturbance and maintained to prevent sediment from discharging onto adjacent surface areas or into any lake,or natural watercourse in proximity to the affected land. B. The erosion and sediment control measures indicated on the Mine Map dated January 1989 and last revised January 28, 1993 shall be installed and maintained to prevent off site sedimentation. C. An erosion and sediment control plan(s) shall be submitted to the Department for approval, prior to any land disturbing activities not indicated on the revised erosion control plan or mine maps submitted with the approved application for a mining permit and any approved revisions to it. Such areas include, but are not limited to, expansion outside of the initial pit area, creek crossings, or expansion of overburden disposal areas. 5. Groundwater Protection Groundwater monitoring wells shall be installed and monitored as deemed appropriate by the department. 6. Graded Slopes and Falls A. The angle for graded slopes and fills shall be no greater than the angle which can be retained by vegetative cover or other adequate erosion control measure, structure, or device. In any event, exposed slopes or any excavated channels, the erosion of which may cause offsite damage because of siltation, shall be planted or otherwise provided with groundcover, devices or structures sufficient to restrain such erosion. Page 5 of 10 B. Overburden cut slopes along the perimeter of pit expansions shall be graded to a minimum 2 horizontal to 1 vertical or flatter and shall be stabilized within 60 days of completion. Furthermore, a minimum ten (10) foot wide horizontal safety bench shall be provided at the top of the.rock and at the toe of the overburden slope. 7. Surface Draing-ge The affected land shall be graded so as to prevent collection of pools of water that are, or likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or -installed when required to prevent such conditions. 8. Blasting The operator'shall provide to the Department a copy of the findings of --any seismic studies conducted-at.this facility. The operator shall make every reasonable effort to incorporate the studies' recommendations into the production blasting program. The following blasting conditions shall be observed by the operator to prevent hazard to persons and adjacent property from thrown rock or vibrations: A. In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity of any component of ground motion shall not exceed 1 inch per second at the immediate location of any building outside of the permitted area regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building outside of the permitted area. The operator shall monitor each blast with a seismograph. B. Airblast overpressure shall not exceed 128 decibels linear (DBL) as measured at the immediate location of any regularly occupied building such as any dwelling house, church, school, public building, or commercial or institutional building. C. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the guarded area or the levels in Items A and B above are exceeded, the operator shall report the incident to the Department immediately and further use of explosive at the site shall be immediately suspended until the following actions have been taken: Page 6 of 10 A thorough investigation as to the cause(s) of the incident shall be conducted. A satisfactory report detailing the investigation shall be provided to the Department within 10 days of the incident. Said report shall, at a minimum, document the cause(s) of the incident along with technical and management actions that will be taken to prevent further incidents. The report shall meet with the approval of the Department before blasting may resume at the site. Failure to take corrective measures to prevent flyrock and repeated instances of flyrock shall be considered a violation of this permit. The operator shall maintain records on each individual blast describing: the total number of holes; pattern of holes and delay of intervals; depth and size of - holes; type and total pounds of explosives;_ maximum pounds per delay interval; amount of stemming and burden for each hole; and blast location. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. E. The operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which 'notice is requested. 9. High Wall Barrier A physical barrier consisting of large boulders placed end - to -end or fencing shall be maintained at all times around theperimeterof any highwall to prevent inadvertent public access. In addition, a minimum 10foot wide horizontal safety bench shall be provided at the junction between the top of rock and the toe of the overburden cut slope. 10. Visual Screening .,jA. Existing vegetation shall be maintained between the mine and public thoroughfares to screen the operation from the public. Additional screening methods, such as constructing earthen berms, shall be employed as deemed appropriate by the Department. Berms shall be located and constructed as shown on the Mine Map dated January 1989 and last revised January 28, 1993. In addition to grasses, loblolly and/or Virginia pines shall be planted as deemed appropriate by the Department to improve visual and noise buffering. Page 7 of 10 11. Plan Modification The operator shall notify the Department in writing of the desire to delete, modify or otherwise change any part of the mining, reclamation, or erosion/sediment control plan contained in the approved application for a mining permit and any approved revisions to it. Approval to implement such changes must be obtained from the Department prior to on -site implementation of the revisions. 12. Refuse Disposal A. No on -site disposal of refuse or other solid waste that is generated outside of the mining permit area shall be allowed within the boundaries of the mining permit area unless authorization to conduct said.disposal has first been obtained from -both the Division of Solid Waste Management and the Land Quality Section, Department of Environment, Health and Natural Resources. The method of disposal shall be consistent.with.the approved.. reclamation plan. B. Mining refuse as defined by G.S. 74-49 (14), of The Mining Act of 1971 generated on -site and directly associated with the mining activity may be disposed of in a designated refuse area. All other waste products must be disposed of in a disposal facility approved by the Division of Solid Waste Management. No petroleum - products, acids, solvents or their storage containers or any other material that may be considered hazardous shall be disposed of within the permitted area. 13. Annual Reclamation Report An Annual Reclamation Report shall be submitted on a form supplied by the Department by February 1 of each year until reclamation is completed and approved. 14. Bonding The security which was posted pursuant to N.C.G.S. 74-54 in the form of a $25,000.00 Blanket Bond'is sufficient to cover :the operation as indicated on the approved application. This security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded acreage. 15. Archaeological Resources Authorized representatives of the Division of Archives and History shall be granted access to the site to determine the presence of significant archaeological resources. Page 8 of 10 APPROVED RECLAMATION PLAN The Mining Permit incorporates this Reclamation Plan, the performance of which is a condition on the continuing validity of that Mining Permit. Additionally, the Reclamation Plan is a separable obligation of the permittee, which continues beyond the terms,of the Mining Permit. The approved plan provides: Minimum Standards As Provided -By G.S. 74-53 1. The final slopes in all excavations in soil, sand, gravel and other unconsolidated materials shall be at such an angle as -to minimize the possibility of slides and be consistent with the future use of the land. 2. - Provisions for safety to persons and to adjoining property must be provided in all excavations in rock. 3. All overburden and spoil shall be left in a configuration which is in accordance with accepted conservation practices and which is suitable for the proposed subsequent use of the land. 4. No small pools of water shall be allowed to collect or remain on the mined area that are, likely to become noxious, odious or foul. 5. The revegetation plan shall conform to accepted and recommended agronomic and reforestation practices as established by the North Carolina Agricultural Experiment Station and.the North Carolina Forest Service. 6. Permittee shall conduct reclamation activities pursuant to the Reclamation Plan herein incorporated. These activities shall be conducted according to the time schedule included .,.in the, plan, which shall to the extent feasible provide reclamation simultaneous with mining operations and in any event, provide reclamation at the earliest practicable time after completion or termination of mining on any segment of the permit area and shall be completed within two years .,,after completion or termination of mining. RECLAMATION CONDITIONS: 1. Provided further, and subject to the Reclamation Schedule, the planned reclamation shall be to allow the quarry excavation to fill with water, provide a permanent barricade (fence) along the top of any highwall, and grade and revegetate any areas in unconsolidated material. Page 9 of 10 2. The specifications for surface gradient restoration to a surface suitable for the planned future use are as follows: A. All areas of unconsolidated material such as overburden or waste piles shall be graded to a 2 horizontal to 1 vertical or flatter slope and terraced as necessary to insure slope stability. B. Any settling ponds and sediment control basins shall be backfilled, graded, and stabilized or cleaned out and made into acceptable lake areas. C. The processing, stockpile, and other disturbed areas neighboring the mine excavation shall be leveled and smoothed. D. Compacted surfaces shall be disced, subsoiled or otherwise prepared before revegetation. E. No contaminants shall be permanently disposed of at the mine site. on -site disposal of waste shall be in accordance with Operating Condition 12A and B. F. The affected land shall be graded to prevent the collection of noxious or foul water. 3. Revegetation Plan: Disturbed areas shall be permanently revegetated according to.the Revegetation Plan prepared by Ms. Carole Cameron dated September 14, 1992. In addition, the permittee shall consult with a professional wildlife biologist with the N.C. Wildlife Resources Commission to enhance post -project wildlife habitat at the site. Page 10 of 10 4. Reclamation Plan: Reclamation shall be conducted simultaneously with mining to the extent feasible. In any event, reclamation shall be initiated as soon as feasible after completion or termination of mining of any mine segment under permit. Final reclamation, including revegetation, shall be completed within two years of completion or termination of mining. This permit, issued September 11, 1972 and renewed on September 27, 1982, is hereby renewed and modified this 16th day of April, 1993 pursuant to G.S. 74-52. Charles H. Gardner, Director Division of Land Resources By Authority of the Secretary Of the Department of Environment, Health and Natural Resources Isand and/or gravel for building and construction purposes. b) All operations associated with extraction shall conform to the following performance standards: 1) Direct illumination resulting from the operation shall not fall upon any land not covered by the application. 2) Equivalent sound levels at the boundaries of the extraction site shall not exceed the following standards: - Between-7:00 a.m. and 7:00 p.m. 68dBA - Between 7:00 p.m. and 7:00 a.m. 58dBA 3) Vibration levels at t ies of the 'extractiona n site shod _t exceed e `X-o owing . stan ards : Maximum Peak Particle Velocity, Steady state 1.0_inches/second Impact 2.0 inches/second Note: ,The maximum particle velocity shall be the product of two (2) times the frequency in cycles per second `times the sum of three (3) mutually cperpendicular displacement •components recorded simultaneously. For purposes of this ordinance, steady state vibrations are :vibrations which are continuous, or vibrations in discrete impulses more frequent than 60 per minute. tiscrete impulses which do not -exceed 60 per minute shall be n considered impact vibrations. a Maximum air blast vibration, measured at the lot lines of the ,zoning lot containing the extractive use, shall be 125 decibels on the linear scale. c) The Rehabilitation Plan shall be referred to the Orange County Soil and Water Conservation District for review and recommendation, which shall not be binding upon the Board of Commissioners, in particular regarding the landscape material specified, the planting and maintenance proposed to insure continuous growth and development, and the acceptability of the proposals for the handling of lakes, ponds, etc. d) The permanent roads, defined as those to be used in excess of one (1) year within the excavation site, shall be surfaced with a dust free material such as soil cement, bituminous concrete or S-1Q .0 �SIUPw DiJV fi. 'NUST it r RS 'l..-_.�` ��G4"✓�•�"`�• ( IIF, li Oy \rC VC ✓'r' 1 S .f. z F t' ro�^hg.^: Yam' 'a -4� • "x PkP 4' 1 rtLo r, , rc ry/ `" i`4la `Z ININ ; �ORDIN4AI�fiCE I :ORANGE COUNTYNORTH CAROLINA ' ` s � .r. n s$ Ni+£1�*a ..."S a ri '. } • Sir 1. k PREPARED€ X THE ORANGE COUNTY PLANNING DEPARTMENT 1J y� n E It - A(PpFa2Pu'fl.� {gm. �uni� �.r-. eww � 5�.1L ' ' yPz. _y_�._F�—•--2 q�q``�( _..—'. co �l;w re wta. Low4y <_ r FEB 17 1991 D .} V. I. tI, rI,I Cal S F h S'`BrF 1 •'q4 i:5,n F.n IW tY 41. { . S• . }y,'a iktirx6':4'U.,Vix4i S DOWNHOLE INSTRUMENTATION CO - SONG/ ��'n� AND CONSULTANTS 1906 Cedar St., Durham, NC 27707 Ph. (919) 490-6329 P.O. BOx 99004, Durham, NC 27706-9004 Ph. (919) 681-8163 Fax 684-5833 s��ey`�" YLV k`Pi �C1��N P" NCR\•- Sa(d W�fu h� WadkC�ioti'E- �C WAA N� OF TlA IZvral e iJ �,RL: �t�A- til Wac'L�t;:a�f AJ �,p (�n�J f•'F1N e2 Final Report to OWASA4'� -+ &w� 4%4wAc d it SCE- p4 (2T 1n144 0 id Velocity & Airblast Maps for Chapel Hill Quarry.Blasts: (,Compliance with North Carolina & Federal Units, Prepared by : SONDI COMPANY OF DURHAM, NC P E. Malin E. Shalev J. M. Borowski April 1, 1996 J 1 h Contents A. List of Tables, Documents, and Figures. 3 1. Executive Summary. 4 2: Introduction. t 1 5 3. Ground Velocity and Airblast Limits in North Carolina and the U.S. A. Background and Summary of Policy Documents. 7 B. Maximum Ground Velocity and Airblast Overpressure Limits. 9 C. Methods for Establishing Compliance to Permitted Limits. 14 D. Comments on The Scale Distance Equation Method. 11 4. Ground Velocity and Airblast Observations from the Chapel Hill Quarry. 11 5. Contour Maps of Average Observed (DPV-dB) Ground Velocities & Airblasts. 12 A. Average Ground Velocity Calculation. 13 B. Average Airblast dB Levels Calculation. 13 C. Contour Maps of Average Values as a Function of Charge Size & Location. 14 D. Confidence Limits for Prediction of Ground Velocity & Airblast dB Levels. 14 6. Soil and Other Conditions at Selected Structures Near the Chapel Hill Quarry. 15 7. Discussion, Conclusions, and Point -by -Point Recommendations. A. Ground Velocity. 16 B. Airblasts. 16 C. Conclusions. 17 D. Some Recommendations. 17 2 d A. List of Tables, Documents, and Figures. Tables . Ground Velocity and Airblast Records from the Quarry Site: 4. l 1.89 — 3.4.94. 2. DPV-dB Ground Velocity and Airblast Regression Coefficients and Standard Errors. 3. Soil Conditions at Selected Structures. Documents 1. & 2. Copies of NC DNR Permits for Mining Operations at the Chapel Hill Quarry. 3. Sample Event Summary Sheet Showing Recorder Calibration Certification. Figures 1. Histogram of Chapel Hill Quarry Charge Sizes: (A) 04.11.1989 to 03.04.95, (B) 01.01.1989 to 12.31.93, (C) 01.01.1994 to 03.04.95. 2. Regional Map of Average Velocity for 300 LB Charge at 1400 ft E.'and' 1800 ft N. 3. Regional Map of Average Airblast dB Levels for 300 LB Charge at 1400 ft E. and 1800 ft N. 4. Regional Map of Average Velocity for 500 LB Charge at 1400 ft E. and 1800 ft N. 5. Regional Map of Average Airblast dB Levels for 500 LB Charge at 1400 ft E. and 1800 ft N. 6. Regional Map of Average Velocity for 730 LB Charge at 1400 ft E. and 1800 ft N. 7. Regional Map of Average Airblast dB Levels for 730 LB Charge at 1400 ft E. and 1800 ft N. 8. Local Map of Average Velocity for 150 LB Charge at 1400 ft E. and 1800 ft N. 9. Local Map of Average Airblast dB Levels for 150 LB Charge at 1400 ft E. and 1800 ft N. 10. Local Map of Average Velocity for 300 LB Charge at 1400 ft E.- and 1800 ft N. 11. Local Map of Average Airblast dB Levels for 300 LB Charge at 1400 ft E. and 1800 ft N. 12. Local Map of Average Velocity for 500 LB Charge at 1400 ft E. and 1800 ft N. 13. Local Map of Average Airblast dB Levels for 500 LB Charge at 1400 ft E. and 1800 ft N. 3 1. Executive Summary SONDI Company was contracted by OWASA to complete an independent investigation of ground velocities and airblast levels from American Stone Company's operation of the Chapel Hill Quarry. The contract was in response to public concern over potential blast related damage and disturbance to private property and individuals near the Quarry. The contract with OWASA specified that SONDI: (a) review all available ground velocity and airblast measurements and geological conditions for compliance with North Carolina and US limits for safe and publicly acceptable use of industrial explosives at the Quarry, and (b) examine allegations violations of the-0%VP3A1 o�;� limits set by the Quarry permits The Quarry operation period covered by SONDI's investigation was from O' .11`.11989�to Zt 03.04.95, during which 217 blasts were detonated. Charge sizes frorii 24 to 7301b./delay� 3 of explosives, with the most common charge size bei 350 lb. 5 SONDI has found that, in compliance }t NC and US regulations, each -.of the 217 quarry blasts within the investigation 1 period w :properly oniiored=The monitoring records show that ground vibrations and sound d waves m th quarry are highly dependent on location. Based on the preferred North Carolina _ and US Direct Particle Velocity and deci-Bell (DPV-dB) analysis method, all these blasts appear to have produced average ground velocities and airblast dBl. levels outside the Quarry boundaries within the limits set by the Quarry permit. The Quarry operations during this period appear to be in - strict compliance with the Quarry permit. In addition to the DPV-dB analysis, SONDI has also examined the possibility that, in the past, random factors beyond the control of the Quarry operators may have resulted in non- compliance with the permit. Statistical analysis of the monitor records suggest that only for �airblasts-from-charges of 500'lb-or-more-did these chances exceed the 95% confidence level (1 (chance -in 20) -Only 8 blasts (less than 4% of the total) in thiss e range have been set off at the Chapel Hill Quarry. While 95% statistical margins are not required in the Quarry permit, they are generally accepted standards in North Carolina and the US. In order to comply with the 95% confidence standards for charges of 500 lb../delay or more, SON DI,recommends -that - the- Quarry U operator�_c_onsider,the use -of blast-mats.-rIn the case of ground vibrations, the DPV maps suggest that compliance can be assured at the 95% limit for all the charge sizes that have been included in this study. 4 2. Introduction, This report is the result of a third party review contract between SONDI Company of Durham, NC, and Orange Water and Sewer Authority of Carborro, NC. The purpose of the review was to independently establish the history of ground vibrations and airblast levels produced by explosions in the Chapel Hill Quarry in Orange County. The review was instigated in response to�public.concern that blasting pract ccs in the_Quatry-were-in-exceedence of..the_Quarry's_oper� at o perrri�currently held by American Stone Company. (Based on SONDI's analysis of blast Lrrioniioring data this does not appear to be the case.] a The report provides. (a) a history of Masts and blast monitoring, including a histogram of blast sizes, and (b) maps of observed ground velocity and airblast dBl. levels, including the locations of structures in the Chapel Hill Quarry area. These maps are used to establish the compliance of the Quarry operation within the limits allowed by the Quarry permit and by the general limits set by North Carolina and the US. The maps presented were constructed. from actual z = �` -observations of -ground velocity and airblast versus blast location and size, as collected underl } GNo� aro=n`a;and-U ions fie American one Cony. ecords_show_that-th were collected with certified monitoring equipment with up to date calibration : Lhe maps show, that, based on the limi ss require�l-bygtrict adherence to the Quarry's permit and accepted standards, none of the blasts at the Chapel Hill Quarry exceeded thepermitted_ground.velocity...and airblast\ _e, � +le elsfat the nearest structures. Review of local soil conditions in the Quarry region suggest that no unusual site effects exist which might produce unexpected levels of velocity. It is noted that OWASA's Quarry Reservoir, adjacent to American Stone's active quarry pit, appears to create special conditions with respect to the airblast levels. Direct measurements of the blast signals suggest that such local conditions causes slower attenuation of the airblast. All of the 217 blasts conducted at the Chapel Hill Quarry have been monitored at a minimum of one ground location in the Quarry region. [Additional, non -mandatory monitoring at more than one ground point was also conducted for several of these explosions, yielding a total of -223 particle velocity and 222 airblast measurements, one of the monitors failing to register an \,airblast reading. Based on charge size and particle velocity, this recording was highly unlikely to exceed permitted limits. Ali the data were used to construct the maps. Not all the measurements were taken at or near the structures in the Quarry region. The blast monitoring data and structure sites are located in terms of map coordinates from the intersection of Highway 54 and Bethel Rd. :pia>;,t", .•: �.�----� The maps present tt ave`iage of�obser_v_ed g`ouftdWeli city arid-ai inapt levels for a given shot size and shot point 1400 ft east and 1800 ft north of the map origin. 5 None of the direct 223 ground velocity and 222 airblast measurements exceeded the DPV- dBl. limits set by the Quarry permit, or by North Carolina and US standards, irrespective of location, including measurements made at specific structures. Based on 95% confidence intervals (1 chance in 20), except in 8 cases of airblast levels, it appears highly unlikely that random factors of blast size errors, blast delay interval errors, local soil conditions, and monitoring equipment errors would have masked any blasting practices that exceeded the permitted levels in 209 of the 217 quarry blasts. There appears to be about a 1 in 20 chance that for 8 charges larger than 500�> lb., the airblast signal could have exceeded permitted.levels. Based on the maps of ground velocity and airblast dBs, it is concluded that for properly located charges below 500 lb. or so, the Chapel Hill Quarry has been, and can be, operated within North Carolina limits without any special precautions. Acharge-levels exceeding 500 lb. it is r '� recommended that noise suppress r ' thods`be impleme�The current maps can be used as a general guide to estimating ground velocity and airblast levels at specific sites. Further site specific data can be added to better constrain these estimates. Ultimately, a more complete map of ground velocity and airblast dB should be created for the Quarry region. This report also reviews the regulations and methods used to determine compliance with ground velocity and airblast regulations. Particular reference is made to the citizens report Blast and Explosive Withdrawal Data by Local Citizens of Southern Orange County, specifically with respect to the use of Scaled Distance Equation (SDE) methods versus the direct measurements described here. Special effects due to soil profiles are also considered. 6 3. Blast Particle Velocity and Airblast Limits in NC and the U.S. in General Environmental damage and public disturbance from quarry blasts of the type used at the Chapel Quarry are most commonly caused by ground and air pressure vibrations. The ground vibrations from quarry blasts result from 2 phenomena: (If) direct compression and fracture -of the uat7 materials_b the ex losion and 2 the falling of blasted materials. Commonly, only y` Y_�P O g R Y vibrations from the first phenomena contain sufficient energy to be detectable at regulated distances away from the blast. Air pressure vibrations result from several sources, including' 5 ttrarismiss__�on of ground vibrations into the atmosphere, (2) direct release of high pressure expl ion_gases-.md=gas=vibrations_to.the atmosphere, and (3) secondary vibrations generated by falling blast materials. Generally, the first 2 sources contribute the greatest proportion of air pressure vibrations. Environmental damage and public disturbance from ground and air pressure vibrations arise when the mechanical and sensory tolerances of structural and biological systems are exceeded. If, for example, a building foundation is moved rapidly back and forth over large enough distances, it experiences large accelerations and consequent internal forces. If the forces exceed the strength of the foundation, it will simply fall apart and lose its ability to support the overlying structure. A large acceleration might also place the foundation far from the center of gravity of its overlying structure, causing the downward force of the structure to exceed part or. all -It I' of its internal carrying capacity, causing part or all of the structure to collapse. Air pressure I R vibrations work in similarways, with subaudiable differences between different parts of a building' " causing it to creak and rattle audibly. Clearly ground and air pressure vibrations are part of the natural environment, including sources as pleasant as a waterfall. Yet few individuals would choose to live or build homes under a waterfall however watertight the structure might be: the mechanical vibrations alone would become dangerous to both the structure and its occupants. The vibrations from quarry blasting can y be considered in a similar vein, with acceptable levels being considerably more difficult to establish. Traditionally, such levels have been established on the basis of community standards, which have historically evolved with both the community and level of engineering technology. The current national and state standards for acceptable quarry blasting practices have evolved in 'this fashion and these limits are discussed below. A. Background and Summary of Policy Documents. Standards for maximum allowed ground velocity and airblast for quarrying operations have been established by both the State of North Carolina and the U.S. Department of Interior. For the purposes of the present study, the important limits are those that apply to structures outside of the area permitted for quarrying operations. These particular limits have been established to insure both public safety and protection of private property from the direct effects of the quarrying activity. The documents currently establishing the maximum ground velocity and airblast limits are: 1. North Carolina Mining Act of 1971 - GS. 74-46. 2. Code of Federal Regulation, Vol. 30, Part 817.67, revised as of 7.1.93. Another useful document often referred to in the setting of permissible limits to blasts i related to quarrying, road building, and other types of ground and air motion generating activities is: 3. U.S. Department of Transportation Publication No. FHWA-HI-92-001 Rock Blasting and Qverbreak Control. Safe limits to the vibrations and sound produced by industrial blasts are based on the velocity of ground motion and air pressure measured at the nearest occupied structure. It is important to note that the limits are referenced -to a "single charge", an explosion whose energy release is concentrated within specified time limits. In the documents above, a single charge, or "delay", is2efined as any explosive energy release,separated by less than 8 milliseconds (ms). It is standard practice to included multiple delays in a quarry excavation event of the type commonly used at the Chapel Hill Quarry. In these events the delays are loaded into spatially separated shot holes, with the timing of their individual charges controlled by a central, calibrated, detonation system. In reporting the size of the charge used in the excavation event,&& largest amount of fexplosive detonated wit�y_8.ms.is,recorded as the delay size. The velocity of ground motion, for which standard measurement methods have existed for several decades, is directly and easily converted to ground acceleration. Accelerations greater than 1 g (g being the acceleration of gravity at the earth's surface) are certain to produce destructive shaking since objects are likely to become airborne. Evem:at significantly-1e velsf acceleration, soils and standard liuUding material are likely to show-vibratQ stress effects 'that -may ieang_term pro rty_ and environmental damag With respect to dangerous air pressures associated with blasting and other industrial activities, a measurement scale based on the pressure of humanly audible sounds has been established. This scale is based on the pressure difference, usually called "overpressure" and measured in pounds per square inch, between a given sound and the lowest humanly audible 0 3. North Carolina (until October 1992): Maximum airblast of 128 decibels 1n Linear (clBl.) results in a regulatory warning, 132 dBl. in a caution, and 135 1 dBl. in non-compliance for maximum at the nearest occupied structure C- outside of the area permitted for quarrying. Because of the inherent uncertainties in both ground velocity and airblast measurement equipment and their setup in the field, the commonly accepted tolerances of these limits are velocities and sounds that are within a few percent of the maximums (±0.03'Ys and ± 3 dB). A face -value comparison of these limits shows that the current limits established in North Carolina are more restrictive (i.e., less likely to result in claims of damages due to blasting). (Tbe_ (1� North Carolina limits-allow--rr'_ximum—groground-motioo'of I"Is irrespective ofdislance outside of Cheoea permitte� ua`rrying. It appears that in the most strict interpretation of the regulations, , the North Carolina standards allow only 75%of the ground mot n a`—ird 50% (6dB) of the airblast ,al lowed-by;federa Preg W ations. Also, within the scope of the investigation conducted here, no formal error limits were found to exist for the NC maximums on velocity and airblast levels. Inquiries to the Land Quality Section of the NC Department of Environment, Health, and Natural Resources suggest that the same or better error standards, as used in the federal limits apply. This allowable error would take into account the variability of atmospheric and local ground conditions. C. Methods of Establishing Compliance to Permitted Limits. In both North Carolina and Federal cases, there are three allowed methods of establishing compliance with these blast regulations: Direct measurement of peak ground velocity and dB (DPV-dB) 2. The Scaled Distance Equation (SDE) method The Frequency -Dependent Blasting Level Chart (FDBLC) method The preferred method is the direct measure approach, which should be done at the location of the specific site in question. Wit p ly calibrated equipmentand.recordingtec— h q , this method can assure that site specific compliance exists, irrespective of factors such as blast size errors and local soil conditions. In the case Gb� y _o 1 10 sound. The common standard used is the so called decibel (dB) scale, which gives relative sound values in logarithmic form. The dB scale relationships are: Sound level in dB = 20 log (Pn-t/Po) Pm = air pressure in psi Po = 2.9 x 10-9 psi = lowest audible (low frequency) sound The value of Po is somewhat subjective, since the lowest audible sound level depends on the frequency of the sound and the sensitivity of the listener. To take the frequency dependence into account, dB designations for specific frequency ranges have been established and are given the labels A, B, C, and Linear. The alphabetic dB designations specify frequency ranges corresponding to the response of the human ear (50 to 10,000 Hz). The Linear (dBI.) designation corresponds to peak, or maximum, overpressures independent of frequency. The peak Linear measure is more restrictive, since the response of the human ear falls off sharply at low frequencies, where blast vibrations are the strongest. B. Maximum Ground Velocity and Airblast Overpressure Limits Currently (1994), for publicly safe and acceptable industrial blasting, the limits for each single explosion, or "delay", established in the documents above are: 1. North Carolina_(1.994):- Maximum ground velocity of 1"/s and airblast of 128 dBl Iat'the aren est occupied structure outside of the area permitted for quarrying. 2. Federal (1994): Maximum limits based on: a. Ground velocity at a structure outside of the permitted area Distances of 0-300 ft:1.25"/s SDistance of 301-5,i ft: 000_0 ft: T"/s� Distances of 5,001-_ 75"/s UL_ - - b. Airblast at a structure outside of the permitted area: 0-0.1 Hz: 134 + 3 dB 0.1-2 Hz: 133 + 3 dB 2-6 Hz: 129 + 3 dB The specific permits governing the operation of the Chapel Hill Quarry by the American Stone Company are contained in the Appendix of this report (Documents 1 and 2). Review of these latter documents show that they are in keeping with the guidelines listed above, with the exception of past airblast levels. With respect to airblasts, it should be noted that while the current operation permit for the Chapel Hill Quarry is based on these standards, an earlier permit, which expired on September 27, 1992 set the following different standards for the airblast overpressure: E The Scaled Distance Equation (SDE) method is frequently used when no direct monitoring observations are available. It is based ' on empirical relationships between blast size and observation distance, and gives estimated values for ground velocity and airblast dB. Unlike the DPV-dB method, this method does not allow for any local peculiarities such as effective charge size and soil conditions. For estimating maximum (a) ground velocity and (b) airblast dB, the important empirical factors in the SDE method are the ratios of observation distance to the (a) square root of charge size and (b) cube root of charge size: (Particle Velocity) = h x (Distance / Square Root Charge Wt) b , (Airblast) = i x (Distance / Cube Root Charge Wt) c , Based on experience with blasting conditions, standard, non -site specific values have been established for the factors h, b, i, and c. These factors can be used to convert the observed ratios into estimated ground velocity and dB values. The frequency Dependent Blasting Level Chart (FDBLC) uses frequency dependent measurements of velocity and dB levels. This method takes into account effects such as variable blasting and recording conditions, which might be strong functions of frequency. As such, to verify compliance, its use requires more sophisticated monitoring equipment than the peak ground velocity method and is less commonly used. D. Comments on The Scale Distance Equation Method. In the event that no direct measurements are available, the SDE method assumes set values for the ratio of blast distance to the square root of the charge size. This ratio is called the scaled distance. Both the NC and U.S. standards specify 55 as the minimum value for this ratio, independent of site and other conditions. Thus, in the event of a value less than 55, either the charge size must be lowered or the distance from the explosion increased. Except for. special circumstances, use of the SDE method to establish permit compliance is only an approximation, and inferior to direct measurement. 4. Ground Velocity and Airblast Data from the Chapel Hill Quarry In compliance with their permit (see Documents 1 and 2) and NC State regulations, American Stdne Company has monitored each of the 217 blasts at the Chapel Hill Quarry site in the time period 4.1 1.89-3.4.94 (Table 1). The distribution of blast sizes in this period and 2 subperiods are shown in Figure 1. The maximum peak ground velocity and airblast have been 11 monitored using an Instantel Blastmate Series 1 model 677 logger. As required by NC law and by standard operating practices, this e�qu�ipment has been calibrated on a regularis�(e.-g-,_see Document 3}, L ese direct monitoring data suggest that none of the recorded maximum peak grounds velocity and airblast dB levels exceeded the established limits of`l" 7s-and^128.dB1 at even the\ C ; , closest recording. sites outside of the quarry boundaries for the largest blast 'of 730 lbw The recording sites were not all situated at nearby structures and not all possible nearby structures were monitored.. However, since the chances that ground velocity data exceeded the NC limits are very small, irrespective of occupied structures, the quarry has clearly operated within the ground velocity limits of its permit. 5. Contour Maps of Average Observed (DPV-dB) Ground Velocities & Airblasts, Figures 2 to 13 show maps of the monitoring and structure sites for the time period of our study. The distances to the sites are referenced to the junction of Bethel Rd and Highway 54, and are given in feet. The values of ground velocity and airblast dB levels at sites where DPV-dB monitoring measurements are not available can be estimated by regression analysis and contouring of the DPV- dB data. In this method the maximum likely values of ground velocity and airblast dB are projected by an empirical relationship between velocity, distance, and charge size. The accepted relationship can be found in, for example, The Blasting Guidance Manual of the U.S. Department of Interior, Office of Surface Mining and Reclamation and Enforcement (by M. F. Rosenthal & G.L. Morlock, 1987). In the regression analysis, the existing direct monitoring data are mathematically fit, in the least squares sense, to the empirical blast -distance -charge size relation. To account for variation of local conditions and errors in the direct monitoring measurements, the results of this regression analysis are traditionally give within statistical confidence limits. The DPV-dB ground velocity and airblast level contours given here:= thus, average values. The regression analysis also gives the standard error of the quarry blast observations. From these errors the chances that random factors will produce ground motions larger than the values shown on the maps can be estimated. A commonly accepted standard of certainty is that there be less than a 1 in 20 chance that random factors cause the DPV-dB levels of a given blast to exceed the contour level plus its standard error. This is also called the 95% confidence limit, since on the average, 95 out of 100 random measurements in the study area will not exceed the expected range of values. The values are provided in this report in Table 2 and are discussed in Section 5D. 12 A. Average DPV Ground Velocity Calculation The PV method allows a group -of observations to be extended outside of a direct monitoring area in a statistical sense. The empirical relationship for the regression analysis for ground velocity is given by (Particle Velocity) = H x (Distance / Square Root Charge Wt) B , where H and B are coefficients to be determined in the regression analysis. To establish the values of H and B, the monitoring data from all 217 blasts at the Chapel Hill Quarry shown in Table 1 were used. To accomplish a fit to these data in a linear least -squares sense, the equation above was put in the following form: Log (Particle Velocity) = Log H + B x Log (Distance / Square Root Charge Wt). The values of the regression show that in the Chapel Hill Quarry area the maximum ground velocity values are given by (Particle Velocity) = 64.82 x ( Distance / Square Root Charge Wt)-1.39 with correlation coefficient r = —0.714 and standard deviation s = 0.76 (see Table 2). B. Average Airblast dB Calculation. A similar regression can be applied to the airblast dB level data. In this case the appropriate empirical relationship is scaled with the cube root of the charge weight. Using similar notation as in the particle velocity relation, the equations for the airblast regression are: (Airblast) = I x (Distance / Cube Root Charge Wt) C , where I and C are coefficients to be determined in the regression analysis. Again, to establish the values of I and C, all 217 blast monitoring data from the Chapel Hill Quarry were tabulated in Table I (see also Section 4.). To accomplish the fit in a linear least squares sense, the equation above was put in the following form: Log (Airblast) = Log I + C x Log (Distance / Cube Root Charge Wt). The values of the regression show that in the Chapel Hill Quarry area the maximum ground velocity values are given by: 13 (Airblast) = 192.01 x ( Distance / Square Root Charge Wt)`0•09 with correlation coefficient r = —0.517 and standard deviation s = 0.06 (see Table 2). C. Contour Maps of Average Values Versus Charge Size & Location. Based on the regression analyses of the Chapel Hill quarry DPV-dB data, maps of the predicted average velocity and airblast values as a function of charge size are shown in Figures 2 to 13. Possible charge sizes from 24 lb. to 730 LB were included in this study. It is stressed that the contours shown are averages over all 217 blasts. The aim of these figures to allow estimation of the ground velocity and airblast levels at structures for which no direct DPV-dB monitoring data exists. D. Confidence Limits for Prediction of Ground Velocity & Airblast dB Levels. rSinc re andom;local=conditions.and-blasting-factors an. cause_unexpectedlV_lower or-liigher�) DPV=dB levels from a given delay -size, wt a verage values shown iri Figures 2 to 13 riiay not.g evi an-accurateview of potential permit -viol atz ons. T6 estimate -the -chances that any single blast will exceed the permitted level, we have studied=the 95% confidence -interval of the DPV-dB contours CThev % vel;equivalent-tc�ll- dhance`in 20, represents what bothJNorth Carolina and USA standards=consider"an -acceptable. risk of randbrrFC6nditions causing-nomcompliance with the?- - quarry permit: In terms of the contour plots, the most useful way of expressing the 1 in 20 chance of exceedence is to find multiplication factors for the DPV and dB levels from the regression analysis. Based on the regressions, these factors are 3.1 and 1.1, respectively. In practical terms, these factors can be used to create new contour maps from those shown in Figures 2 to 14, with the new contours showing the level above which there is only 1 chance in 20 for the DPV-dB levels to be greater. 14 6. Soil and Other Conditions at Selected Structures Near the Chapel Hill Quarry LTh`eeontour maps of the Chapel Hill Quarry and surrounding area show several structures near the northern quarry boundary, where the predicted maximum velocities come closest to, pxceedipg the NC limits of 1 Vs. Outside of this area, the contour maps show that ground velocity - falls off very rapidly. Thus, in addition to estimating the ground motion at these sites, it is necessary to look at their soil conditions, as these can significantly effect ground velocities (see, e,g., Reiter 1992). As a--1 rule, thick soil and withered layers can enhan ec men ot.. f the - die -mot, groundry brations_Y, with layers many:`tens=of�feet�thickrcausing as much as 2 to 4 times on�� r Cias soil ''free sites.'On..the:other--hand;;_soil layers.le`ss=tlian.ten or so feet -thick tend to.haveLne_gligiSle i effects _on blast vibratio The soil types at each of the structures shown on the contour maps are listed in Table 3. This table shows that roughly 6 ft of silt and loam is a common soil profile; with 6 of the 8 structures sitting on soil that is identified as having a base of weathered bedrock. At these sites, if the actual 'depth to competent material is only 6 ft, it is unlikely that special resonance conditions exist that could increase the direct measured velocity much beyond the 95% confidence levels cited above. Thus;.;. less -some special geological circumstances exist in the immediate_ quarry -area; local soilconditions-are unlikely to,contribute instances of illegal -ground vibration levels from ihe.D'_ quarry blasting. Given the rapid attenuation of ground motion outside of the iiftediate quarry area, special vibration effects due to unusual soil conditions seem event even less likely. An obvious feature of the airblast data and their average contour maps has to do with the directional effects they suggest: the sound waves from the quarry explosions do not attenuate uniformly in all directions. Further, the time variability of the airblast data suggest a number of atmospheric factors also play roles in the sound levels produced by any given blast. This may be particularly true for the sound waves over open areas within the quarry boundaries. The average i contour maps and their 95% confidence bounds take such factors into account. These are discussed further in Section 7.13. 15 7. Discussion, Conclusions, and Point -by -Point Recommendations. A. Ground Velocity Both the direct measurement data and estimated velocity maps indicate that the Chapel Hill / Quarry has been operated within the limits of its permits for charge sizes less than those listed in ' Table 1. The direct measurement data indicate that, if current blasting practices are continued, �. ground vibrations outside the boundaries of the Quarry will fall within legal limits. With the data available in this report, the maps in Figure 2 to 13 can be used to predict ground velocity and to determine charge size before the blast with a 95% confidence level that the ground velocity and airblast will not exceed the values shown. The data and maps account for local site conditions such as unique soil horizons and the possible effects of open areas within the quarry boundaries. More complete regression relationships can be constructed for different parts of the Quarry regionas more data become available. To establish the 95% confidence limits, the DPV contour values can be multiplied by 3.1. The resulting contour are then interpreted as representing a 1 in 20 chance that random factors will cause the local ground velocity to exceed the contour value shown. We have applied this factor to the maximum charge used in the study time period (J3016.. shot on 1/4/94),[he average predicted values of which are shown in Figure 12. Multiplying the contours by 3.1-moves the PYs. contour out to where the 0.35 contour is in this Figure. The Figure shows that there is a I in 20 chance that several houses outside of the quarry boundary would experience DPV levels of I" or so for a blast of 730 lb. located It east and 1800 north of the road junction. Thus there exists 20'chance'that I shot in the.217 events in this Atudv was aC(buranuarently not above)-the=leeah B. Airblasts �Theairblast monitoring data suggests that the Chapel Hill Quarry has also operated within- v the limit of its permit for maximum blast dB levels.) It is noted, however, that an airblast level of , —1 8 B was recor on 9/27/8_9 from a charge delay of 36516. 4Aa monitoring distance o� (;( u fft (andsbence:near�the�quarryboundaryand within range of known occupied -structures). If thts airblast was recorded at an occupied structure, it would have marginally exceeded. strict NC limits. Based on the available data and inherent eaas in monitoring, it is however not very likely that this case represented an actual violation of the quarry's permit, but it comes close to the limits set therein. 16 ;t To establish the 95% confidence limits, the dB contour values can be multiplied by I.I. The resulting contours are then interpreted as representing it 1 in 20 chance that random factors will cause the local airblast level to exceed the contour value shown. We have applied this factor to the maximum charge (730) used in the study time period, the average predicted values of which are ----- - �, shown in Figure 13, Multiplying the contours by 1.1 moves thEl28 dB contour out to where the V,1.60 contour isin this Figure. The Figureshows thaCthere is a greater than I in 20 chance that pproximately a dozen houses on the northeast side of the quarry would experience dB levels 128 or higher for a blast of 730 lb. located at 1400 ft east and 1800 north of_the.road junco . Applying this same a roach to the charge maps shows -that 500 lb.. is the maximum charge size PP g A g ,, foi which the 1 chance in 20 confidence level is not exceeded -at -any structure. C. Conclusions. Based on DPV-dB monitoring studies of the Chapel Hill Quarry,61asimg- at this site is in istrict compliance with its operating permit. Based on a statistical analysis of the monitoring data, it appears that random factors beyond the control of the quarry •operators could cause_a_1_in_20 Ichof airblast dB level violation for charge sizes exceeding SQO lb. c. D. Some Recommendations The 95% confidence DPV-dB velocity and airblast levels suggest that -there"exists a potential for exceeding permit limits with respect to airblast overpressures for charges larger than 500 lb.. To deal with this potential problem, it is recommended that the Quarry: ( - use different blastingprocedures;- sucfi'as;extra;lil.ast.mats; or -----]ower the delay siz— e below S00 lb. at blast locations on the northeast side. 17 Table 1. Ground velocity and airblast records from quarry site region; 4/11/89 to 3/4/94 1 DATEW; ToM 1§' DIET RY k i} Ora kII SITE r`®T� Ibs uIJ d i1M"1' PART oC:AIi 'i ;UELOCITYai # � A,IRBIA9T 143 �yyl I1II,iI' dtil �I":�".. �di��, if ` MiN Ift ij ;l'iis: 4/11/89 2000 338 0.04 5/9/89 3000 351 0.093 108,6 6/14/89 2300 646 0.072 113,6 6/20/69 1000 72 0.085 122.2 6/22/89 1000 8.1 0.149 8/17/89 2000 374,9 0.065 f 124:3'-Z 8/21/69 1500 400 0.158 130.3 j 8/31/89 1800 1 381 0.162 1.118- 9/7/89 800 107.5 0.284 117.6 9/12/89 1500 324.2 0.215 124.3 9118189 2500 91.7 0.022 120.1 9/19/89 1100 360.5 0.355 124.7 9127/89 1500 365.3 0.118 \ 129.8� 9127/89 1800 335 0.077 127.6 ! 10/10/89 2200 376 0.133 'I 24`.6 10/23/89 120C 329 0.356 121.4 10/24/89 1600 24.1 0.06 iw.lL 10/26/89 19W 337 0.097 r� 126.1 1111/89 1900 83.5 0,031 Y103 11/10/89 1900 373 0.066 1183 11/20/89 1900 396.5 0091 1205 11/27/89 1900 332 0,071 113.9 12/15/89 1900_- 350 0.101 120.6 12/28/89 2200 343.2 0.066 116.4 1/10/90 2200 330 0.048 120 1/17/90 2200 83.5 0.713 103.8 1/30/90 800 139 0.051 123.5 2/5/90 2200 337 1 0.099 120.4 2/12/90 900 175 0.262 117.6 2/13/90 1000 341 0.342 117.8� 2/26/90 1400 341 0.308 ff125.5 3/8/90 1400 420 0.417 `118- 3/20/90 1400 281 0.348 116.1 3/27/90 1100 97 0.174 116.4 4/2/90 1200 280 0.35 115.7 4/12/90 1200 255 0.259 119 4/24/90 1400 359 0.137 109 5/3/90 1400 325 0.166 108.6 519/90 1400 244 0.089 121 5/16/90 1800 94 0.027 116.6 5/18/90 1500 265 0.094 116.4 5/30190 1600 250 0.05 120.7 6/8/90 1400 286 0.089 120" 6/13/90 1700 265 0.064 r126.5 1 6/18/90 1700 350 0.095 "I17.2 6/26/90 2500 1 260 0.052 98.6 7/3/90 2500 1 295 1 0.046 95 M Table 1. Ground velocity and airblast records from quarry site region: 4/11/89 to 3/4/94 7/6/90 1500 50 0.022 103.8 7/11190 15M 170 0.025 107.6 7/13/90 15W 100 0.05 103.8 7/25/90 1500 95 0.03 102.1 8j 1 90 1500 95 0.043 103 8/7190 1500 360 0.115 99.9 8/14190 1400 200 0.061 95 8 16 90 1100 100 0.033 101.1 8/20 90 2100 275 0.194 114.1 8/28/90 1 2700 95 0.033 109.8 9 7 90 1 2400 95 0.032 101.1 9/10/90 2400 408 0.2 116.4 9/24/90 2400 75 0.039 113.E 9 27/90 2000 340 0.175 112.5 10/2/90 2100 250 0.156 118.1 10/8/90 2300 85 0.038 111 10 16 90 2700 340 0.053 95 10/31/90 2000 410 0.161 111 11/1/90 2100 270 0.054 105 12/6/90 2100 1 300 0.254 116,3 1/2/91 2800 275 0,124 1164 1/18/91 1700 456 0.261 119 2/5/9-1 1800 315 0.14 111.3 2/12/91 2600 280 0.094 119.9 2/26/91 2300 255 0.121 111.9 2/27191 2000 74 0.025 103 --- 3/11/91 1900 285 0.224 118.8 3 22/91 1900 392 0.14 109.8 4/24/91 1 2300 285 0.086 113.6 4130/91 2300 285 0.08 111.6 5114/91 2500 290 0.071 95 5/23 91 1900 285 0.069 111,3 5/30 91 2600 310 0.058 113.9 6/17191 2100 60 0.021 104,6 6 13/91 1800 415 O.T92 117 7 16 91 2300 350 0.096 99.9 7/30191 2000 325 0.171 114.8 8 11 91 2300 365 0.062 116.1 B 14 91 1 2000 310 0.102 113.6 10/30/91 1000 314 0.125 118.7 11/12/91 650 90 0.225 119.3 11/14 91 1400 3% 0.086 117.5 2 21/92 2600 346 0.08 123.5 3/24/92 15M 100 0.032 119.5 3/31/92 28M 110 0.154 95 4 1/92 2200 405 0.077 115.7 4/8/92 1800 492 0.065 123.2 4/30/92 1200 65 0.042 121.5 5/6/92 1700 345 0.11 121.9 5/11/92 500 325 0.385 123.4 19 Table 1. Ground velocity and airblast records from quarry site region: 4/11/89 to 3/4/94 5/ 14/92 1450 440 0.363 118.8 6/ 1 /92 2000 280 0.142 123 .� 6/ 10/92 2000 370 0.046 r 126.6 l 6/17/92 1800 380 0.151 111 6/25/92 1800 403 0.101 115.9 7/21 /92 2000 391 0.104 118.81 7/30/92 1000 450 0.304 �'130,4 8/3/92 600 260 .0.947 - 1'18- 8/5/92 800 65 0.032 113.1 8/24/92 1950 450 0.087 115.9 9/2/92 8400 425 0,02 92.5 9/ 17/92 1700 455 0.1 1214 9/24/92 2450 274 0.037. 122.2 10/13/92 2300 510 0A56 120 10/21 /92 2450 323 0.032 114.6 11 /6/92 1200 440 0.747 -123.4. 11 / 17/92 1400 390 0, 815 r' 131-1 12/9/92 900 450 0.573 124.3 1 /4/93 850 360 0.669 122.9 1/14/93 2650 345 0.049 118.7 1/26/93 2750 140 0.022 103 1/28/93 2750 390 0.061 111 2/23/93 1950 510 0.12 115.5 3/ 10/93 2050 575 0.102 110.2 3/30/93 2850 400 0.068 102 3/31/93 1150- 155 0.088 115 4/22/93 2450 530 0.078 119.3 5/6/93 2400 360 0.044 116.3 5/12/93 2400 400 0,046 119.3 6/2/93 2050 430 0,122 109.4 6/ 10/93 2700 360 0.09 106.5 6/ 16/93 1900 295 0.135 1.16.8 6/25/93 800 295 0.296 128.6 1 7/ 12/93 2500 390 0.06 115.9� 7/ 15/93 1600 195 0.066 114.4 7/22/93 2400 355 0.069 120.8 8/2/93 2550 360 0.091 113.4 8/3/93 1100 140 0.246 115.5 8/16/93 2300 335 0,053 119 8/20/93 2500 405 0.094 113.9 8/26/93 1175 360 0.246 j 3 7, 9/1/93 800 110 0.119 127,3 9/10/93 1050 100 0,062 " -112.5 9/14/93 1200 290 0.379 117 9/28/93 1625 335 0,119 111.9 10/4/93 1450 140 0.069 113.E 10/12/93 2800 525 0.074 121.7 10J21/93 875 120 0.262 118.1 10/22/93 2100 340 0,105 114.6 11/4/93 1200 L 350 1 0.38 115 20 Table 1. Ground velocity and airblast records from quarry site region. 4/11/89 to 3/4/94 11 / 12/93 2500 350 0,061 110.6 11 / 17/93 1100 105 0.258 118.7 11 /23/93 2550 270 0.074 110.E 11/30/93 2575 230 0.04 118 12/7/93 2575 340 0.055 122.5 12/ 15/93 2900 140 0.025 121.7 12/20/93 2700 520 0.094 109.4 1/4/94 2900 730 0.032 97 1/13/94 2900 480 0.047 119.4 1 /26/94 2400 430 0,099 111.3 2/7/94 1550 90 0.05 110.2 2/9/94 2000 383 0.168 116.6 2/ 15/94 1200 380 0.495 120.5 2/22/94 1400 380 0.233 113.4 2/28/94 1400 470 0.048 119.9 3/4/94 2200 390 0.042 125.8 3/23/94 2400 425 0.054 122 3/30/94 2550 435 0.054 120 4/8/94 1800 340 0.112 113 4/19/94 2500 460 0.039 126 5/3/94 1500 250 0.073 110 5/6/94 2450 420 0.039 118 5/12/94 1550 300 0.098 111 5/19/94 2500 350 0.054 119 6/1/94 2900 265 0.029 107 6/7194 2800 360 U54 108 6/15/94 2300 330 0,093 114 6/23/94 1600 331 0.293 118 6/30/94 600 50 0.142 119 7/6/94 1400 340 0.239 113 7/12/94 2300 335 0,093 114 7/19/94 1350 350 0,181 117 7/29/94 2500 340 0.098 119 8/2/94 1100 112 0.068 117 8/5/94 2700 405 0.063 109 8/11/94 1900 240 0,059 115 8/18/94 1325 250 0.234 112 8/23/94 700 95 0.122 113 8/26/94 2100 240 0.059 117 9/8/94 2150 210 0.054 118 9/9/94 1150 80 0.039 107 9/15/94 2900 190 0.024 109 9/23/94 3000 240 0.029 112 9/30/94 850 238 0.312 114 10/5/94 900 155 0.151 116 10/6/94 3000 265 0,029 113 10/12/94 3000 260 0.034 118 10/19/94 1000 75 0.044 110 10/21/94 825 245 0.376 120 10/28/94 1475 215 1 0.093 108 21 Table 1. Ground velocity and airblast records from quarry site region: 4/11/89 to 3/4/94 11/3/94 1300 225 0.234 124 1/11/95 2100 210 0.12 112 1/11/95 2000 210 0.059 106 1/11/95 1700 210 0.07 106 2/27/95 750 225 0.2 116 2/27/95 2300 225 0.06 106 2/27/95 2100 225 M6 106 3/2/95 2200 250 0.1 106 3/2/95 2300 250 0.06 109 3/2/95 1500 250 0.225 117 3/2/95 1800 250 0.234 116 3/7/95 3200 240 0.12 106 3/7/95 3100 240 0.093 _ 705 3/7/95 3000 240 0.059 — 95 3/10/95 4000 150 0.04 100 3/14/95 1600 335 0,098 121 3/14/95 2600 305 0.07 110 3/20/95 2300 190 0.024 114 3/20/95 2800 190 0.05 106 3/23/95 1700 260 0.142 115 3/23/95 2700 260 0.08 106 4/3/95 3400 230 0.029 100 4/3/95 2800 230 0.039 101 4/3/95 2500 230 0.,06 100 4/3/95 1900 230 0.08 106 4/3/95 3600 230 0.04 109 MA TABLE 2. Regression coeficients and standard errors for particle velocities and airblasts. Data Type .# of measurement H B r - r square Standard Deviation Ground Velocity 223 64.82 -1.39 -0.714 0.509 76% of velocity Air Blast 222 192.01 -0.09 -0.517 0.268 6% of decibel 23 TABLE 3: Soil conditions at selected structures. STRUCTURE SOIL TYPE DEPTH USDA TEXTURE LIQUID LIMIT PLASTICITY West to East In Pct INDEX Herdon: 1,2 HrB 0-9 Silt Loam <35 NP-10 9-58 Silty Clay loam, 41-70 13 - 30 clay. 58-62 Weathered bedrock -- -- Herdon: 3,4,6,7 HrC 0-9 Silt Loam <35 NP-10 9-58 Silty Clay loam, 41-70 13 - 30 clay. 58-62 Weathered bedrock -- -- Georgeville: 5,8 GeB 0-7 Silt Loam <35 NP - 10 7-59 Silty Clay, silty clay 41-70 13- 30 loam, clay loam 59-65 Silty clay loam -- -- 24 DOCUMENT 1 DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMM DIVISION OF LAND RESOURCES LAND QUALITY SECTION RENEWAL P E R M I T for the operation of a mining activity In accordance with the provisions of G. S. 74-46 through 68, "The Mining Act of 1971", Mining Permitting Regulation 15 N.C.A.C. 5B,-and other applicable laws, rules and regulations Permission is hereby granted to: American Stone Company , permittee for the operation of a crushed stone quarry entitled, Chapel Hill Quarry , permit no. 68-2 and located in Orange County, which shall provide that the usefulness, productivity and scenic values of all lands and waters affected by this mining operation will receive the greatest practical degree of protection and restoration. 25 A 2 Of 6 In accordance with the application for this mining permit, which is hereby approved by the Department of Natural Resources & Community Development, here- inafter referred to as the Department, and in conformity with the approved Recla- mation Plan attached to and incorporated as part of this permit, provisions must be made for the protection of the surrounding environment and for reclamation of the land and water affected by the permitted mining operation. This permit is expressly conditioned upon compliance with all the requirements of the approved Reclamtion Plan. However, completed performance of the approved Reclamation Plan is a separable obligation, secured by the bond or other security on file with the Department, and may survive the expiration, revocation or suspension of this permit. This permit is not transferable by the permittee with the following exception: If another operator succeeds to the interest of the permittee in the permitted mining operation, by virtue of a sale, lease, assignment or otherwise,the Department may release the permittee from the duties imposed upon him by the conditions of his permit and by the Mining Act with reference to the permitted operation, and transfer the permit to the successor operator, provided that both operators have complied with the requirements of the Mining Act and that the successor operator agrees to assume the duties of the permittee with reference to reclamation of the affected land and posts a suitable bond or other security. In the event that the Department determines that the permittee or permittee's successor is not complying with the Reclamation Plan or other terms and con- ditions of this permit, or is failing to achieve the purposes and requirements of the Mining Act, the Department may give the operator written notice of its intent to modify, revoke or suspend the permit, or its intent to modify the Reclamation Plan as incorporated in the permit. The operator shall have right to a hearing at a'designated time and place on any proposed modification, revocation or suspension by the Department. Alternatively and in addition to the above, the Department may institute other enforcement procedures authorized by law. naFi ni i•i nne Wherever used or referred to in this permit, unless the context clearly indicates otherwise, terms shall have the same meaning as supplied by the Mining Act, N.C.G.S. 74-49. Conditions The permitted mining operation shall not violate standards of air quality, surface water quality, or ground water quality promulgated by the Environmental Management Commission. This permit shall be effective from the date of its issuance until S,ept27, 1992 and shall be subject to the provisions of the Mining Act, N.C.G.S. 74-46�ttber , et. sect., and to the following conditions and limitations: gr7 3 (_' . 6 Any wastewater processing or mine dewatering shall be in accordance with permit requirements and regulations promulgated by the Division of Environ- mental Management. Any mining process producing air contaminant emissions shall be subject to the permitting requirements and regulations promulgated by the Division of Environmental Management. 3. Sufficient buffer shall be maintained between any affected land and any adjoining waterway to prevent sedimentation of that waterway from erosion of the affected land and to preserve the integrity of the natural water- course. 4. Adequate mechanical barriers including but not limited to diversions, earthen dikes, brush barriers, silt check dams, silt retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land disturbance to prevent sediment from discharging onto adjacent surface areas or into any lake or natural watercourse in proximity to the affected land. 5. The angle for graded slopes and fills shall be no greater than the angle which can be retained by vegetative cover or other adequate erosion control measure, structure or device. In any event, exposed slopes or any excavated channels, the erosion of which may cause offsite damage due ta'siltation, shall be planted or otherwise provided with ground cover, devices or structures sufficient to restrain such erosion. 6. The affected land shall be graded so as to prevent collection of pools of wager that are, or are likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or installed when required to pr,'(rerit such conditions. 7. The following blasting conditions shall be observed by the operator to prevent hazard to persons and adjacent property from thrown rock or vibrations: A. In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity -of any component of ground motion shall not exceed one inch per second at the immediate location of any building regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building. B. Airblast overpressure shall not exceed 128 decibels linear (dBL)- warning, 132 dBL caution, and 135 dBL maximum as measured at the immediate location of any regularly occupied building such as any dwelling house, church, school, public building, or commercial or institutional building. LI 27 C. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the guarded area, it shall be reported to the Department immediately, who will conduct a thorough investigation to determine the cause. Failure to take corrective measures to prevent flyrock and repeated instances of flyrock shall be considered a violation of the permit. D. Operator shall maintain records on each individual blast describing; the total number of holes; pattern of holes; depth of holes; total pounds of explosives; maximum pounds per delay interval; amount of stemming and burden for each hole; and blast location. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. E. Operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which notice is requested. E. Sufficient buffer shall be maintained L:•tween any excavation and any adjoining property line to prevent caving of that property and to allow grading of the sideslopes to the required angle. 9. A physical barrier consisting of a fence or boulder barriers, etc., shall be maintained around the perimeter of any quarry highwall. 10. Existing vegetation or vegetated earthen berms shall be maintained between the mine and public throughfares whenever practical to screen the operation from public view. 11. An Annual Reclamation Report shall be submitted on a form supplied by the Department on February 1 of each year until reclamation is completed and approved. 12. The security which was posted pursuant to N.C.G.S'. 74-54 in the form of $25,000.00 Blanket Pond is sufficient to cover the quarry operation as indicated on the approved application. This security must remain in force for this permit to be valid. The total affected land shall not exceed the bonded acreage. M DOCUMENT DEPARTMENT OF ENV2RONMENT HEALTH AND NATURAL 'RESOURCES D 2V= S SON OF LAND RESOURCE S T.aND QUAL= TY S ECT 2 ON P £ R M 2 T for the operation of a mining activity In accordance with the provisions of G.S_ 74-46 through 68, "The Mining Act of 1971," Mining Permit Rule 15A NCAC 5 8, and other applicable laws, rules and regulations Permission is hereby granted to: American Stone Company Chapel Hill Quarry .... _ . Orange County - Permit No. 68-02 for the operation of a Crushed Stone Quarry which shall provide that the usefulness, productivity and scenic values of all lands and waters affected by this mining operation will receive the greatest practical degree of protection and restoration. MINING PERMIT EXPIRATION DATE' April 16. 2003 I E4: Page 5 of 10 Overburden cut slopes along the perimeter of pit expansions shall be graded to a minimum 2 horizontal to 1 vertical or flatter and shall be stabilized within 60 days of completion. Furthermore, a minimum ten (10) foot wide horizontal safety bench shall be provided at the top of the rock and at the toe of the overburden slope. Surface Drainage The affected land shall be graded so as to prevent collection of pools of water that are, or likely to become, noxious or foul. Necessary structures such as drainage ditches or conduits shall be constructed or installed when required to prevent such conditions. The operator shall provide to the Department a copy of the findings of any seismic studies conducted at this facility. The operator shall make every reasonable effort to incorporate the studies' recommendations into the production blasting program. The following blasting conditions shall be observed by the operator to prevent hazard to persons and adjacent property from thrown rock or vibrations: In all blasting operations, except as hereinafter otherwise provided, the maximum peak particle velocity of any component of ground motion shall not exceed 1 inch per second at the immediate location of any building outside of the permitted area regularly occupied by human beings such as dwelling house, church, school, public building, or commercial or institutional building outside of the permitted area. The operator shall monitor each blast with a seismograph. Airblast overpressure shall not exceed 128 decibels linear (DBL) as measured at the immediate location of any regularly occupied building such as any dwelling house, church, school, public building, or commercial or institutional building. The operator shall take all reasonable precautions to insure that flyrock is not thrown beyond areas where the access is temporarily or permanently guarded by the operator. Should flyrock occur beyond the guarded area or the levels in Items A and B above are exceeded, the operator shall report the incident to the Department immediately and further use of explosive at the site shall be immediately suspended until the following actions have been taken: Page 6 of 10 1. A thorough investigation as to the cause(s) of the incident shall be conducted. 2. A satisfactory report detailing the investigation shall be provided to the Department within 10 days of the incident. Said report shall, at a minimum, document the cause(s) of the incident along with technical and management actions that will be taken to prevent further incidents. The report shall meet with the approval of the Department before blasting may resume at the site. Failure to take corrective measures to prevent fiyrock and repeated instances of flyrock shall be considered a violation of this permit. D. The operator shall maintain records on each individual blast describing: the total number of holes; pattern of holes and delay of intervals; depth and size of holes; type and total pounds of explosives; maximum pounds per delay interval,• amount of stemming and burden for each hole; and blast location. Records shall be maintained at the permittee's mine office and copies shall be provided to the Department upon request. E. The operator shall, when requested by the Department, give 24 hour advance notice to the Land Quality Section prior to any blast during a period for which notice is requested. 9. High Wall Barriez; A physical barrier consisting of large boulders placed end - to -end or fencing shall be maintained at all times around the perimeter of any highwall to prevent inadvertent public access. In addition, a minimum 10 foot wide horizontal safety bench shall be provided at the junction between the top of rock and the toe of the overburden cut slope. 10. Visual Screening A. Existing vegetation shall be maintained between the mine and public thoroughfares to screen the operation from the public. Additional screening methods, such as constructing earthen berms, shall be employed as deemed appropriate by the Department. B. Berms shall be located and constructed as shown on the Mine Map dated January 1989 and last revised January 28, 1993. In addition to grasses, loblolly and/or Virginia pines shall be planted as deemed appropriate by the Department to improve visual and noise buffering. 31 DOCUMENT 7 .. ANERICAN STONE COMPANY OPEL !-!.ILL. "L EVENT SLJMMFifRY SHEET EVLitr TYPE SERIAL NO. CURE TIME & DATE TRIGGER SOURCE RECORD TIME LOCATION CL IEtri r USLR NOTES SCALED DISTANCE PEPot VECTOR SUM MICROPHONE PK AIR zC rREO BATTERY LEVEL Full Wevefo'rni 0822 V1. 61--N77 8829�11E r. TVI Vert. at 11:56:19 Feb 21, 1992 Goo 0.0210 in/sec s sec. stored in Format 2 [QUARRY OFFICE AMERICAN STONE HiiPTIN NPIRIE;'f 11 RONNIE CRAVEN iic BENCH NE WALL 139.8 (2600.0 ft, 34E.0 Ibs/dclay' 0.080 in/=_ec et 250 ms LINEAR WEIGHTING 123.5 dB(L) N/A 6.2 volts TRAN VERT LONG PP W. 059 0. 039 0. Ot 73. finis eC ZC FRED 9 17 FFT FRED N/A N/A N/A H3 TIME (REL.TO TRIG) 326 246 251 Ns AC.CEL 0.03 0.03 0.05 9 1:4 WAVE ❑ISP '0. 0007 0. 0005 0.0006 in SENSORCHECH Passed Passed Passed 1_I_Ly._.1._...L-i-F-i1-:14--L-1-..i--1t1-11-Y-H-.1. INI-IC-IINAL MIC CHANNEL TESTc Passed Frey = 20 Amp = 13'::E• CALIBRATED ON Oct 18, 1991 by D.M.C. OWENSBORO, KY (N/A) — Not applicable Copyriyht © Instantel 19F8-1994 32 Figure 1 47k W kr E 10 c m 4/11/1989 - 3/4/1995 100 200 300 400 500 600 700 100 200 300 400 500 600 700 100 200 300 400 500 600 700 Charge size (lb) 33 Figure 2 E74erage_p.r-edicted pp, articlee vel.. cityi(in/sec) for -3 charge blast at 1400 1800—� 10000 8000 DO DO • 6000 • .. ...... .. 9 • .p. v 0 8..v.v. •° °. ° • ° 0 65•DO 4000 0DO DO 2000 . , e`a ..ppI oS. ° ° °.1' o ON 0. 0 MOD DO i, DO 2000 a• S o ° . v _ OD° -4000- -6000- ° -8000 10000 Or -10000 -8000 -6000 -4000 -2000 0 2000 4000 6000 -8000 10000 ft blast location o ioccuoied structures • monitor location ---zyquarry border 34 Figure 3 -10000 -8000 -6000 -4000 -2000 0 2000 4000 6000 8000 10000 fl blast location ❑ occupied structures • monitor location quarry border 35 Figure 4 Average predicted particle velocity (in/sec) for 500 lb charge blast at 1400 1800 10000 8000 6000 4000 2000 3 0 -2000 -4000 -6000 -8000 10000 ° o$v °. o • 4 . `O • oy^1 Nv�1 v've e -10000 -8000 -6000 -4000 -2000 0 2000 4000 6000 8000 10000 ft *' blast location ❑ occupied structures • monitor location - — quarry border 36 Figure 5 Average predicted airblast (BDL) for 500 Ib charge blast at 1400 1800 -10000 -8000 -6000 -4000 -2000 0 2000 4000 6000 8000 10000 ft blast location ❑ occupied structures • monitor location - — quarry border ON Figure 6 Average predicted particle velocity (in/sec) for 730 lb charge blast at 1400 1800 10000 8000 6000 4000 2000 0 -2000 -4000 -6000 -8000 -10000 o• �^ O 06 �. 0 -10000 -8000 -6000 -4000 -2000 0 2000 4000 6000 8000 10000 ft blast location ❑ :occupied structures monitor location - — quarry border - Cti Figure 7 Average predicted airblast (BDL) for 730 lb charge blast at 1400 1800 -10000 -8000 -6000 -4000 -2000 0 2000 4000 soon 8000 10000 e blast location ❑ occupied structures • monitor location - — quarry border 39 Figure 8 Average predicted particle velocity (in/sec) for 150 lb charge blast at 1400 1800 5000 ° o o v v °v v vv v v v v 4000 v u ' ° v u v v p. 3000 ° •°b ° f °v h o" o vO 2000 1 •^ 7� o' ° ❑ ° ° • v C5 p. o \ v �r: 0 00 5 h v / 0 O ° °• S p ° o v mCp4 v v • v° v v ° v -1000 oos ° f p05 ��0.05 v v v ° v ° ° v -2000 v °v ° ° ° ?000 -1000 0 1000 2000 3000 4000 5000 ff blast location ❑ occupied structures • monitor location — — quarry border 40 Figure 10 Average predicted particle velocity (in/sec) for 300 lb charge blast at 1400 1800 5000 �111 3000 ►111 1000 0 -1000 -2000 ❑ ❑ ❑ ❑ ❑ ❑ o' ❑ 0 ( .. 0 0.05 ° S ❑ ° ❑ o ❑ c• ❑ p ❑ ❑ 05 ❑ ❑ l 0 ❑ ❑ 0 ?S 0.1 0 ° 1 Nh�0S 01S �❑ ° O Oy 0.05 • • 0 • • `*- • ryh � 1 ❑ ❑ -L ❑ o �7'--- O, nn j \ O ° CD/ 0.15 0 5.5 o SS 0.25� 0 ❑00 0 • o ❑ ❑ 54 ❑ ❑ CO ❑ �7 ❑ ❑ ° O ° s • 0.1 0 ❑ ❑ ❑ ❑ ❑❑ ° S ° 0.05 0.05 ° ❑ °° ❑ -2000 -1000 0 1000 2000 3000 4000 5000 ft blast location ❑ occupied structures • monitor location — — quarry border 42 Figure 9 •/11 3000 2000 1000 0 -1000 -2000 Average predicted airblast (BDL) for 150 lb charge blast at 1400 1800 v ° MC54 ° v v v v ° v ° v•v ° ° ° o v v 2000 -1000 0 1000 2000 3000 4000 5000 ft blast location ❑ occupied structures • monitor location — — quarry border 41 Figure 11 5000 3000 2000 4= 1000 0 -1000 -2000 Average predicted airblast (BDL) for 300 lb charge blast at 1400 1800 -2000 -1000 0 1000 2000 3000 4000 5000 ft blast location ❑ occupied structures • monitor location — — quarry border 43 Figure 12 Average predicted particle velocity (in/sec) for 500 lb charge blast at 1400 1800 5000 4000 3000 2000 1000 0 -1000 -2000 2000 -1000 0 1000 2000 3000 4000 5000 ft blast location ❑ occupied structures • monitor location — — quarry border 44 Figure 13 5000 3000 2000 1000 0 -1000 -2000 Average predicted airblast (BDL) for 500 lb charge blast at 1400 1800 ❑ ❑ u ❑ n ❑ ❑ ❑ 0 0 ❑ j� n 4 ❑ 6 ❑ 11 ❑ �� r ❑ ' n A24 ❑ ❑ Q 11 n � r6, • � 124 f 24 ❑ } yD A D • ❑ ❑ • 7 • / ❑ y �16 ❑ n CS ❑ r2 °4 ❑ C] 9 • Cl El L ❑ ❑ ❑AD ❑ 0 ❑ DO ❑ n If -2000 -1000 0 1000 2000 3000 4000 5000 ft blast location ❑ occupied structures • monitor location — — quarry border 45 Figure 14 Average predicted particle velocity (in/sec) for 730 lb charge blast at 1400 1800 5000 4000 3000 2000 0°' v 1000 ° v 0 ° �4 ° -1000 L ° -2000 °1• 2000 -1000 0 1000 2000 3000 4000 5000 rt *' blast location ❑ occupied structures • monitor location — quarry border 46 Figure 15 5000 �111 C111 2000 x 1000 0 -1000 -2000 Average predicted airblast (BDL) for 730 lb charge blast at 1400 1800 2000 -1000 0 1000 2000 3000 4000 5000 ft * blast location ❑ occupied structures • monitor location - — quarry border CS _ a vape — 5 — 'P z W z ! I a y,�I z xg� 1ai".� ��HR s 1 ' j aF9P.: aqqa 1Ilb4� � r r r r' 9X i r r � r J �f(!' � J r 'fir 1 r z g 1 5 z iz o 0 Ae , I x am �J �88 x C 3P %lI 3z X, b111��am Reclamation Map MARIETTA AGGREGATES Chapel Hill Quarry NAI :"nc W. n Reclamation Map MARIETTA AGGREGATES Chapel Hill Quarry Reclamation Map MARIETTA AGGREGATES Chapel HIII Quarry R W N 0 pypypy � C. IN s W Fp�p+ YA lil pG E1- YMr on a 0� 0 4 '. d 2g 9 o 9 1 a ` uuF ° Y L aOOE IN NNNNN IN Nl- 1 � s tN'N IN N' ° } IDA N N 9R c a do is 53 fa � � Y I' Z ZFtl DO oI INN a20R oo a ' -----------. � INN- 9E0 FtyL i. \ 1 \ .. .. .�... _ ,!!!!;: 2 \ , § !!o { N.C. Department of Ensironment, Health, and Natural Resources Di%ision of Land Resources, Land Qualil% Section Telephone Log Dice 2 J IJ 1 1 shut f of Time: 41ZO � ( 555� pm Call: Placed ❑ Rumi Returned 0— I. Project'. /tue;g� ZVf45-� 60- ounty: 2. Convcfston with: 5;cwI✓ Telephone 3. Affiliation: 407�.(/.t.P1f+d'. dY OG/d- Al <. Content of r MIZVO "WOW., i Filed t -, . kx - Czon n+.rr- ,r � II�� gmmgz�-1G39 III ,� � �--� •"�^^. LN`�YJ ,�J —�Q-- 1�1 rd d Id I _ I NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF LAND RESOURCES LAND QUALITY SECTION P.O. BOX 27687 RALEIGH, NORTH CAROLINA 27611 TELEPHONE: (919) 7334574 FAX. (919) 733-2876 FACSIMILE MESSAGE TO: 44. 6iftQ.P/Z� COMPANYIDEPART MENL- PHONE NO.: 1 FAX NO.: FROM, .J1! a4le: DATE:... a-/-.SJZ,. TIME: -I-- NUMBER OF PAGES BEING SENT (INCLUDING.THIS PAGE): COMMENTS: Author: Tracy Davis at NROLR0IP Date: 1/13/97 9:52 AM Priority: Normal TO: emd@ga.unc.edu at Internet CC: Tracy Davis Subject: Re[2]: Pre -blast Surveys as Conditions of Quarry Permits ------------------------------------ Message Contents _------------------------------ Dear Mr_-Danzinger: Per your request, here is my message to Charles Gardner for his consideration and his response back to me. If you have any further questions, please don't hesitate to give me a call. Sincerely, Tracy E. Davis, P.E. State Mining Specialist Land Quality Section Forward Header _ Subject: Re[2]: Pre -blast Surveys as Conditions Author: Tracy Davis at NROLR0IP Date: 1/8/97 5:35 PM of Quarry Permits Thanks for the response, Charles ... I concur!! I'll convey this to Mr. Danzinger. Thanks! Tracy Reply Separator Subject: Re: Pre -blast Surveys as Conditions of Quarry Permits Author: Charles Gardner at NROLR0IP Date: 1/8/97 5:41 PM I do not think such a permit condition is justified. With around 150 permitted quarries in NC having had probably well over 100,000 (maybe 200,000) shots in only the last 20 years, there is no documentation of airblast or ground vibration damage to structures that I know of. Requiring pre -blasting surveys as a permit condition would be over -conservative overkill, not justified, and unfair to permittees. Either nearby property owners or permittees are free to conduct such surveys if they wish. So, the bottom line is that I will not include pre -blast surveys generally as a permit condition. (I could ,imagine a site-specific/supersensitive structure -specific hypothetical exception, but we'll deal with that if it ever comes up.) Please convey this to Mr. Danzinger--feel free to send him a copy of this if you wish. Thanks. Charles Reply Separator ' Subject: Pre -blast Surveys as Conditions of Quarry Permits Author: Tracy Davis at NROLR0IP Date: 1/8/97 4:31 PM Yesterday, I spoke with Mr. Earl Danzinger who is involved in an ongoing zoning dispute between American Stone (MMA) and OWSA, Chapel Hill and Carrboro (Remember the Rem Malloy blasting complaint in which X evaluated 80+ records and a graduate student was his blasting "consultant"?). It seems that MMA wants to double the size of its Chapel Hill Quarry which is alledgedly located in a "protected" watershed. All three local authorities are evaluating this proposed change to the watershed rules (Carrboro seems to be the most concerned). Mr. Danzinger is a consultant working to gather environmental and public safety info on the mining operation. I have given him some information in the past. However, while reviewing an OSM policy guide regarding regulation of coal mines (provided to him by Paxton Badham to show that NC's 1.0 ips limit is half the federal limit), Mr. Danzinger noted that OSM requires the following in Sec. 515(b)(15)(e) regarding blasting: "The owner/resident must be notified at least 30 days prior to the start of the blasting of how they may request a pre blast survey..." = from the International Society of Explosive Engineers, (216) 349-4004. It goes on to state that if a pre -blast survey is requested, the operator must pay for one to be conducted. Mr. Danzinger asked if we are subject to this federal policy and if we require such surveys in our mining permits. I said no, that OSM regulates coal mining and NC does not have any coal mining; thus, our state law is the only governing mining statute for non -coal mining in NC. I told him that pre -blast surveys are voluntary and are at the discretion of each operator, as there are pros and cons to such surveys and they can be expensive. I noted that as long as the blasting does not exceed our vibration and airblast limits at the closest occupied structure, we feel the public is protected against damage. He seemed to understand but wanted me to ask you if we could begin placing the above as a permit condition ... so that people who had concerns about blasting damage could have the surveys done, and those who didn't care, wouldn't. He felt this would provide some "real" data that could be monitored/evaluated and used, by either side, to support its case, should their be a future dispute. What are your thoughts on including this as a permit condition, so I can inform him should he call me in the future? Thanks! Tracy Author: Tracy Davis at NROLR0IP Date: 1/13/97 10:20 AM Priority: Normal TO: emd@ga.unc.edu at Internet CC: Tracy Davis Subject: Pre -blast Surveys at Quarry Sites ------------------------------------ Message Contents ------------------------------------ Mx _Danzinger: I came across some other information that may be of interest to you regarding the subject matter. Ms. Judy Wehner, one of my assistants, used to work with the State of Kentucky's mining program, where she primarily regulated the coal mining industry. Thus, she has an extensive amount of experience in dealing with the Office of Surface Mining and its regulations, especially Public Law 95-87. Ms. Wehner has indicated to me that this law was based on coal mining and that coal mining is very different from crushed stone quarries. She said that a preblast survey is feasible in coal mining because, in most cases, operations are in and out of an area in a few years. Contour coal mines have a sixty day limit and area coal mines have a 180 day limit. Quarries, on the other hand, last decades. In Ms. Wehner's opinion, it would not be practical to hold a quarry responsible for all damages that may occur to a structure for that period of time when other factors such as settling, indoor vs. outdoor temperature variations, quality of construction and materials, etc. could have caused or contributed to the damages. I thought this insight would provide additional information to you regarding this matter. If you would like to talk with Ms. Wehner directly about this, you can reach her at (919) 733-4574. Sincerely, Tracy E. Davis, P.E. State Mining Specialist. Land Quality Section Author: Charles Gardner at NROLR0IP Date: 1/9/97 10:53 AM Priority: Normal Receipt Requested TO: Judy Wehner CC: Mell Nevils CC: Tracy Davis CC: Jim Simons Subject: Re[3]: Pre -blast Surveys as ------------------------------------ Very good input, Judy. Thanks. Charles Conditions of Quarry Permits Message Contents ------------------------------------ Reply Separator Subject: Re[2]: Pre -blast Surveys as Conditions of Quarry Permits Author: Judy Wehner at NROLR01P Date: 1/9/97 9:14 AM Charles, Public Law 95-87 is based on coal mining. Coal mining is not the same as quarrying. A preblast survey is feasible in coal mining because in most cases operations are in and out of an area in a few years. Contour mines have a sixty day limit and area mines have 180 day limit. Quarries last decades, even centuries. It would not be practical to hold a quarry responsible for all damages that may occur to a structure for that period of time when other factors such as settling, tindoor vs. outdoor temperatures, etc. Judy Reply Separator Subject: Re: Pre -blast Surveys as Conditions of Quarry Permits Author: Charles Gardner at NROLR0IP Date: 1/8/97 5:41 PM I do not think such a permit condition is justified. With around 150 permitted quarries in NC having had probably well over 100,000 (maybe 200,000) shots in only the last 20 years, there is no documentation of airblast or ground vibration damage to structures that I know of. Requiring pre -blasting surveys as a permit condition would be over -conservative overkill, not justified, and unfair to permittees. Either nearby property owners or permittees are free to conduct such surveys if they wish. So, the bottom line is that I will not include pre -blast surveys generally as a permit condition. (I could imagine a site-specific/supersensitive structure -specific hypothetical exception, but we'll deal with that if it ever comes up.) Please convey this to Mr. Danzinger--feel free to send him a copy of this if you wish. Thanks. Charles Author: Charles Gardner at NROLROIP Date: 1/8/97 5:41 PM Priority: Normal Receipt Requested TO: Mell Nevils CC: Tracy Davis CC: Tony Sample CC: Judy Wehner Subject: Re; Pre -blast Surveys as Conditions of Quarry Permits ------------------------------------ Message Contents -___--------------------------------- I do not think such a permit condition is justified. With around 150 permitted quarries in NC having had probably well over 100,000 (maybe 200,000) shots in only the last 20 years, there is no documentation of airblast or ground vibration damage to structures that I know of. Requiring pre -blasting surveys as a permit condition would be over -conservative overkill, not justified, and unfair to permittees. Either nearby property owners or permittees are free to conduct such surveys if they wish. So, the bottom line is that I will not include pze-blast surveys generally as a permit condition. (I could imagine a site-specific/supersensitive structure -specific hypothetical exception, but we'll deal with that if it ever comes up.) Please convey this to Mr. Danzinger--feel free to send him a copy of this if you wish. Thanks. Charles Reply Separator Subject: Pre --blast Surveys as Conditions of Quarry Permits Author: Tracy Davis at NROLROIP Date: 1/8/97 4:31 PM (111) 9qy -It'n Yesterday, I spoke with for. Earl Danzinger who is involved in an ongoing zoning dispute between American Stone (MMA) and OWSA, Chapel Hill and Carrboro (Remember the Rem Malloy blasting complaint in which I evaluated 80+ records and a graduate student was his blasting "consultant"?). It seems that MMA wants to double the size of its Chapel Hill Quarry which is aliedgedly located in a "protected" watershed. All three local authorities are evaluating this proposed change to the watershed rules (Carrboro seems to be the most concerned). Mr. Danzinger is a consultant working to gather environmental and public safety info on the mining operation. I have given him some information in the past. However, while reviewing an OSM policy guide regarding regulation of coal mines (provided to him by Paxton Badham to show that NC's 1.0 ips limit is half the federal limit), Mr. Danzinger noted that OSM requires the following in Sec. 515(b)(15)(e) regarding blasting: "The owner/resident must be notified at least 30 days prior to the start of the blasting of how they may request a pre -blast survey..." = from the International Society of Explosive Engineers, (216) 349-4004. It goes on to state that if a pre -blast survey is requested, the operator must pay for one to be conducted. Mr. Danzinger asked if we are subject to this federal policy and if we require such surveys in our mining permits. I said no, that OSM regulates coal mining and NC does not have any coal mining; thus, our state law is the only governing mining statute for non -coal mining in NC. I told him that pre -blast surveys are voluntary and are at the discretion of each operator, as there are pros and cons to such surveys and they can be expensive. I noted that as long as the blasting does not exceed our vibration and airblast limits at the closest occupied structure, we feel the public is protected against damage. He seemed to understand but wanted me to ask you if we could begin placing the above as a permit condition ... so that people who had concerns about blasting damage could have the surveys done, and those who didn't care, wouldn't. He felt this would provide some "real" data that could be monitored/evaluated and used, by either side, to support its case, should their be a future dispute. What are your thoughts on including this as a permit condition, so I can inform him should he call me in the future? Thanks! Tracy / RECEIVED 7� f1t: u. North Carolina Department of Environment Health, and alural , Division of land Resources, Land Quality .on MINE INSPECTION REPOPT (PERMITTED MINE) 1. MINE NAME 1(1 1OOn0( L/ r'f 2. ININIGVDPE 5E.�r0N 3. OPERATOR Il'1Ffi-'irm 5. o&, 'rh /lQnt.( f+, 5. ADDRESSIIU RnX I9KG74 PPlnAL(jllr'r N(S6. PERMIT EXPIRATION DATEL(-U2��5 7. Person(s) contacted at she ' %9?f-1 19 8. Was mine operating at lime of Inspection? PI'Yes ONO 9. Pictures? ❑Yes ©No 10. Date last inspected'tLij s 11. Any mining since last inspection? le Vss ❑ No 12. Is the mine in compliance with the Operating Conditions of the Permit? 2•Yes ONO If no, explain: 13. Is the mine in compliance with the Reclamation Conditions of the Permit? VYes ONO If no, explain: 14. Did any of the above deficiencies result in oflsae damage? El Yes ONO If yes, describe the type and severity of the damage: N 15. Corrective measures needed and/or taken: 16. Other recommendations and comments:. I — I '. T) (tt� I � i LUt+h Ltrl nNr, i+ Pon let , -11 r1'1!)r1 Q7f1 1SO/f r11Pn f' ('i`iFfr1�1 4 nP Pei G ii. 17. Is the Annual Reclamation Report +/- map accurate? Yes ONO (Explain) ❑Not Reviewed i 18. Follow-up inspection needed? ❑Yes ©Nlo Proposed date /_„/� 19. No. of additional pages of Inspection Report. 20. Copy of Report. sent to operator B/R/-% INSPECTED BV:I .ACQ..TLAn Uaq DATE Pi Phone No: (1/4 ),5`1 r- L)"700 White copy to file Yellow copy to operator Pink copy to Mining Specialist 951 •. n.}.11rTW0 n -m �,�:ti'-sea, a�—nre Ti^.•'� rr YY�:rv�tlVt.••"^"' �. Department of Environment Health, and Natural �7 Division of Ladd Resources, Land Quality Section North Carolina I,.lilirbi� if�F3'IF'2iyl�irO�rY�i'��Cih`r BY (PERMITTED MINE 1. MINE NAME ill 2. MINING PERMIT# / 0. 3. OPERATOR ✓• r - ''1 .11 4. COUNTY (flop, 5. ADDRESS 1 c Fr ;r"� . PERMIT EXPIRATION DATE 3 7. Person(s) contacted at site. �PV f _ 1 8. Was mine operating f time Df Inspection. kyes ONO 9. Pictures? 0Yes 17No 10. Date last insDeaed:Z/1(Q! i 11. Any mining since last inspection? ( Yes ❑ No 12. Is the mine in compliance with the Operating Conditions of the Permit? IDYes ONO II no, explain: 13. Is the mine in compliance with the Reclamation Conditions of the Permit? %yes ❑No It no, explain: 14. Did any Of the above deficiencies result in oftslle damage? ❑Yes ONO If yes, describe the type and severity of the damage: i 15. Corrective measures needed and/or taken: 16. Other recommendations and comments:.. inif- P o iure Qj 17. Is the Annual Reclamation Report +I- map accurate? Yes ONO (Explain) ❑Not Reviewed 18. Follow-up Inspection needed? ❑Yes � ^No Proposed date _/_/ nC 19. No. of additional pages of Inspection Report—Q. 20. Copy of Report sent to, operator jp�l�l� (date) / i _ 11 ( .h..L - INSPECTEDBY: I..CP.�-YTIP 1. ,L�DATE Phone No: ( 91 ) `;1 1—j"1OO White copy to life Yellow copy to operator Pink copy to Mining Specialist a�af North Carolina Departrnent of Environment, Healthid , Natural lBesotrrces ,ED Division of Land Resources, Land Ou Section MINE INSPECTION REF RT (PERANTTED NNE) JUN 2 1199E 1. MINE NAME _ _ J0 �i 2. MINI IT#i7 — �- 3. OPERATOR O 4. COUNTY f / S. ADDRESS '. 5 5' rPP 8. PER I �IQAILR'!' - 7. Person(s) contacts at she I µ) S. Was mine operating at time of inspection? KI Yes ❑No 9. Pictures. 10. Date last inspectetl:�/jj/�t3 11. Any mining since last inspection? ZI Yes ❑ No 12. Is the mine in compliance with the Operating Conditions of the Permit? jg Yes ❑ No If no, explain: 13. Is the mine in compliance with the Reclamation Conditions of the Permil? Yes ❑ No 11 no, explain: 14. Did any of the above deficiencies result in olfslte damage? ❑ Yes ❑ No n yes, describe the type and severity of the damage: 15. %rreclive measures needed and/or taken: rhta f 1 V F 18. Other recommendations and oommenls: 17. Is the Annual Reclamation Report +I- map accurate? Yes LINO (Explain) ❑Not Reviewed 18. Follow-up Inspection needed? ❑Yes I5.No Proposed date / 11 19. No. of additional pages of �Inspection RReportQ. 20. Copy of Report sent to operator rr !miI l '- INSPECTED BY( AAHILC DATE i7 1 HQ /9 �te) Phone No: (q IQ white mpy to file yellow copy fo operator Pink copy to Mining specialist 9/91 ie - I1w, DIVISION OF LAND RESOURCES March 1, 1992 MEMORANDUM TO: Tony Sample, Assistant Mining Specialist FROM: Tim Holland, Assistant Regional Engineer THROUGH: John Holley, Regional Engine rOk 3'"(�3 SUBJECT Chapel Hill Quarry (68-02) American Stone Co. Orange County I have completed my review of the subject mine permit renewal application. The information appears complete. Sediment control appears adequate. I recommend approval of the application. TWH MqR i 110 81991 A��TY Sfc7zol DAG CHECKLIST IF, ROUT* Company A .-. 04'v fe QSc t.xproject Name Permit No. htq� O County 12ia24 Date Received z'i5 -f: Reviewer Please make copies of check to include with Central office and Field Office 7files and log in checks. *❑Few Renewal ❑ Modification. ElTransfer ❑ Release 12/Additional Information Received and Attached for Review - Please route to: u D lex Field Office Date Routed ❑ Wildlife Resources Commission Date Routed U * ❑ Archives and History Date Routed ❑ Other: Date Routed Suspense Date for Comments: .3 /9 ' 43 (Date received +30 days, not on weekend) ❑ Please note the following: *SUSAN: Please make file and return Checklist and file to Reviewer White Copy to Field Office e]]av Copy to Pile Pink Copy. to Susan �i MARTIN MARIETTA AGGREGATES February 18, 1993 Mr. Tony Sample Asst. Mining Specialist N. C. Dept. of Environmental Health and Natural Resources Land Quality Section P. O. Box 27687 Raleigh, NC 27611 Subject: American Stone Co. Chapel Hill Quarry Mine Permit Renewal Permit # 68-02 Orange County Dear Mr. Sample: POST OFFICE BOX 30013 RALEIGH, NORTH CAROLINA 27622-0013 TELEPHONE 1919) 781 -4550 LAND QUALITY SECTION With regard to the additional information requested in your letter of November 24, 1992 I am submitting the following: 1. Thirty two acres have been deleted from our mine maps leaving 118 acres to be permitted. I've attached our check #99-018504 in the amount $250.00 to cover this modification. 2. The pit expansion area for the ten year permit period is indicated by heavy tape. There are no immediate plans to relocate Phil's Creek. If this changes we will submit plans to your department for approval. With regard to the downstream watershed we contacted Mr. Arthur Mouberry. His position is that we already have a valid permit. I hope the attached information and revised maps are sufficient for your approval. Sincerely, �f Carole Cameron, ASLA Landscape Specialist Environmental Services CC:lmm • TVAt aAA(FMR'a r e"' xsYa'yv. MART/IV'MA'R04el iv9 9�vse DATE CHECK NO. VENDORNO UZU35 J1i2:1y3 'ab D01HE04 DATE INVOICE/CREDIT GROSS AMT ADJ DESC CREDIT DISCOUNT NETAMOUNT 012 093 MODIPICATION 2.50I0 [+ 2501100 I i THE ATTACHED CHECK IS IN PAYMENT TDTAED -I E)1 _SU L - FOR ITEMS DESCRIBED ABOVE 16DI CAROLINA 37622.0013 WACHOVIA BANK 6 TRUST CO. RALEIGH. NC PAY TO THE ORDER OF: N C DEPT ENVIRONMENT & NATURALRESOURCES 512 N SALISBURY ST RALEIGH HEALTH NO 27511 b6J CHECK NO 99-018504 DIV MISTPICT OISBOPSEMENT ACCT. VOID SIXTY DAYS FROM DATE GATE CHECK AMOUNT U 1121 /'d5 2250.00 State of North Carolina Department of Environment, Health, and Natural Resources Division of land Resources James G. Martin, Governor November 24, 1992 Charles H. Gardner, P.G., P.E.. William W. Cobey, Jr., Secretary Director and State Geologist Ms. Carole Cameron Martin Marietta Aggregates P.O. Box 30013_ Raleigh, N.C. 27622-0013 Re: American Stone Company Mining Permit Renewal Request Chapel Hill Quarry -` Mining Permit No. 68-02 Orange County Dear Ms. Cameron: The review has been completed on your renewal request for the above referenced mining permit. The following additional information is required before the review can be completed: 1. The renewal request includes 118 acres to be permitted. The original permit was issued for approximately 100 acres. The map submitted with the renewal request appears to include approximately 150 acres within the permit boundary. Please clarify the acreage you wish to have permitted at this site and send the appropriate fees to cover any modifications. 2. The direction and extent of the pit expansion for the life of the permit is also needed. it appears that a 401 Certification has been issued for the relocation of Phil's Creek. However, please be advised that a major modification must be submitted to and approved by this office before such activities can be initiated. Please note, that due to the location of a critical area watershed downstream from this site, the Division of Environmental Management has voiced some concerns that an individual permit, rather than a general certification, be issued for this site. Please contact Mr. Arthur Mouberry at ( 919 ) 571--4700 regarding this matter. PLEASE BE ADVISED THAT OUR REVIEW CANNOT BE COMPLETED UNTIL ALL OF THE ITEMS LISTED ABOVE HAVE BEEN FULLY ADDRESSED. Geological Survey Section Land Quality Section Geodetic Survcy Section (919) 733-2423 (919) 733-4574 (919) 733-3836 V0. Box 27687 • Raleigh, N.C. 27611-7687 • Telephone (919) 733-3833 An Equal Opportunity Affirmative Action Employer Ms. Cameron November 24, 1992 Page 2 In order to complete the processing of your renewal request, please forward three (3) copies of the requested information to my attention at the following address: Land Quality Section P. O. Box 27687 Raleigh, N. C. 27611 Please contact me at (919) 733-4574 if you should have any questions on the above. - -- - Sincerely, -= Tony-a-L-. Assistant Mining Specialist Land Quality Section TLS/ TLS CC.* Mr. John Holley Mr. Charles Gardner • • MEMORANDUM DIVISION OF LAND RESOURCES October 20, 1992 TO: Tony Sample, Assistant Mini g Specia ' t FROM: John Holley, Regional Engi ee SUBJECT: Chapel Hill Quarry (68-02) Orange County R,rcrl Vrr 2j19Y2 E��d QuAttrr SECT10N We have completed our review of the subject revised application and Tim's comments are attached. While I agree that there are no problems with the current site or the erosion and sedimentation control plan for the proposed immediate activity limits, I would point out that the acreage to be covered by the permit is not consistent with the submitted map or current file. The current computer record indicates that the existing permit covers 77 acres. That was consistent with the original application for the site, but was changed to about 118 acres when the permit was last renewed in 1982. Comparing the 1980/82 maps with the current submittal reveals a couple of problems. First, in 1982 the 118 acres consisted of a 100 acre tract along SR 1104 and an approximately 18 acre tract north of Phil's Creek. The current submittal adds an approximately 32 acre tract to the west off NC 54 that was previously owned by Philip Durham. This means that instead of 118 acres, the current application appears to cover approximately 150 acres. Lastly, the maps provided with the last renewal indicate future pit expansion to the northwest across Phil's Creek. The maps submitted with the current application seem to restrict pit development to the area between SR 1104 and Phil's Creek, yet a buffer zone is designated around the entire property boundary indicating the potential for a much more significant affected area. In a conversation with Horace Willson, it was noted that they plan only to expand the pit to the east, eventually taking in SR 1104 and connecting the pit to the old quarry to the southeast on OWASA property. The direction and extent of pit expansion intended for the life of this permit should be clarified in the application and on the maps. Further, the property to be covered by this permit should be clearly indicated on the map and should be consitent with the application. Depending on what they plan to do with the added acreage and when, the proposal may need to be considered as a major modification. If there are any questions, please advise. JLH • e MEMO TO: Tony Sampl g DIVISION OF LAND RESuur,_ES FROM: Tim Holland A THROUGH: John Holley 10-8-92 RE: Americai, stone Co. Chapel Hill Quarry Permit Renewal I have reviewed the referenced project ana found no apparent problems. I recommend approval of the ap- plication. MINE SITE REVIEW FORM PROJECT NAME: Due: o A/ hAssigned To: ar� completed / /% 9L Approved by Arthur Mouberry Timothy Donnelly REVIEW ISSUES: Watershed/Stream Name and Classification p/-//L$ t'R&k A/SO Comments ma's s:>e�s urxdfuam. �F�m�/ C ux�'� P4aa�. Almre , n n.;k. .: p.tll�n(ir' n ObCaU 5. /E RJQ �O1aN.YM.�L1 �(e <6�I �8�. PERMITS: / NPDES Permit Required V Yes No NPDES Permit Existing/Proposed No. O20000 Non Discharge Permit Required ✓ Yes No Non Discharge Permit Existing/Proposed No. uA Comments Wetlands Disturbed by Activity Les o , 401 Certification Required K r' Yes No CommentsQ�l°�p^" - .�'�_ Viji 61ai ,le.e, ,rnatid� „f/.uyre<.ea i�t�siw:ea� o.u� s�.tv..,,,� DIVISION OF ENVIRONMENTAL MANAGEMENT AIR QUALITY SECTION RALEIGH REGIONAL OFFICE October 6, 1992 M E M O R A N D U M TO: Arthur Mouberr THROUGH: Ken Schuster FROM: Ernie Fuller !✓3. /.,/ SUBJECT: Mining Application American Stone G8-2 Orange County I have reviewed the mining permit application for Martin Marietta Aggregates - Chapel Hill Quarry (formerly American Stone) and have found no Air Quality Concerns at this time. The facility currently holds Air Quality permit No. 4576R11, the last revision being issued April 1, 1991. The permit expires June 30, 1994. The most recent Air Quality compliance inspection was performed May 22, 1992. According to Mr. John Hunt, the facility was operating in compliance with visible emissions, odor, and permit requirements at that time. If we can be of further assistance, please advise. DIVISION OF ENVIRONMENTAL MANAGEMENT Oef��w Zv /99a a To: John Holley, P.E. Through: Arthur Mouberry, P.E. From: S. �Jay Zimmerman, P.G. S Subject: Ig.w.,y as-z The Raleigh Regional Office Groundwater Section has reviewed the subject permit and has no comments at this time. It is not anticipated that this project will pose any adverse affect to groundwater quality. AM: SJZ 0 North Carolina Wildlife Resources Commission 0 512 N. Salisbury Street, Raleigh, Noah Carolina 27604-1188, 919-733-�39� C E I V E D Charles R. Fullwood, Executive Director 1I MEMORANDUM OCT 15192 2 TO: Susan B. Edwards, Mining Program secretary LAND QUALITY SECTION Land Quality Section Dept. of Environment, Health & Natural Resources " FROM: Dennis Stewart, Manager Habitat Conservation Program DATE: October 15, 1992 SUBJECT: Mine Permit Renewal Request for American Stone Co., Orange County, Chapel Hill Quarry, Permit ,¢ 68-02 A biologist with the North Carolina Wildlife Resources Commission (NCWRC) staff has reviewed the subject mining permit renewal request and is familiar with habitat values of the project area. An onsite investigation was conducted on October 13, 1992 for the purpose of assessing pit mining activities on local wildlife and fisheries resources. Our comments are provided in accordance with provisions of the N.C. Mining Act of 1971 (G.S. 74-46 through G.S. 74-68, 15 NCAC 5; as amended, 1982). The area is primarily open land with a small amount of woodland located around the edge of the property. Songbirds, raptors, deer and some small game species currently use a portion of the property. Several areas on the site have been stabilized with lespedeza and grass. Some evidence of erosion was observed, however sediment basins on the property appear to prevent serious erosion. We do not expect any significant impacts to fisheries or wildlife resources from activities associated with mining at this site. The reclamation plan for the site is acceptable. Thank you for the opportunity to review and comment on this permit request. If you should have questions about this project, or need further assistance, please contact District Wildlife Biologist Larry Warlick at (919) 431-3860. cc: Steve Chappell, Mine Manager Larry Warlick, Wildlife Management Shari Bryant, Inland Fisheries Ill e "` Fn7t v r 3� -.vW. State of North Carolina Department of Environment, Health, and Natural Division of Land Resources s� Reso ` ees James G. Martin, Governor September 29, 1992 Charles H. Gardner, P.G., P.E. William W. Cobey, Jr., Secretary Director and State Geologist MEMORANDUM To: Fred Harris Director, Division of Boating and inland Fisheries Wildlife Resources Commission Attention: Habitat Conservation Program From: Susan B. Edwards Mining Program Secretary Land Quality Section Re: Mining Permit Renewal Request for American Stone Company Chapel Hill Quarry - Permit No. 68-02 Orange County Please find attached for your review a copy of the mining permit application for the above referenced project. Please review this information and advise as to the probability of this operation having unduly adverse effect on -wildlife and freshwater fisheries (G. S. 74-51 (2)). Please respond by October 29�-1992 so that we may complete our review of this request within our -statutory time limits. As is the case in our review of all mining permit applications, renewals and modifications, this office will carefully review all proposed erosion and sediment control measures to ensure that they are sufficient to restrain erosion and off -site sedimentation. However, any comments your agency can provide regarding effects on wildlife and freshwater fisheries would be greatly appreciated. If your staff wishes to perform a site inspection, it is recommended that they contact the person submitting this request to set up a convenient date and time. Also, please send a copy of your comments to the person noted in the application. Your continued cooperation in the review of these type requests is greatly appreciated. SBE ;Attachments cc: Mr. John Holley Geological Survey Section Land Quality Section Geodetic Survey Section (919) 733-2423 (919) 733.4574 (919) 733-3836 P.O. Box 27687 • Raleigh, NC 27611.7687 • Telephone (919) 733.3833 An Equal Opportunity Affirmative Action Employer M#6G CHECKLIST FOR ROUTING Company 71+ crl<o-„_ V 4� 0a Project Name CA-,�.o NOt Our A. � Permit No. 69-L County /)ee4 - Date Received 9-Z f-9Z Reviewer Please make copies of check to include with Central Office and Field Office files and log in checks. * ❑ New [J Renewal ❑ Modification ❑ Transfer ❑ Release ❑ Additional Information Received and Attached for Review Please route to: Er le .r, A, Field Office 11 Wildlife Resources Commission * ❑ Archives and History ❑ Other: Date Routed Date Routed Date Routed Date Routed Suspense Date for Comments: (Date received +30 days, not on weekend) ❑ Please note the following: *SUSAN: Please make file and return Checklist and file to Reviewer White Copy to Field Office VS'ellow Copy to File Pink Copy to Susan • 5in70 State of North Carolina Department of Environment, Health, and Natural Resources Division of Land Resources James G. Martin, Governor September 29, 1992 Charles H. Gardner, P.G., P.E William W. Cobey, Jr., Secretary Director and State Geologist MEMORANDUM To: Fred Harris Director, Division of Boating and inland Fisheries Wildlife Resources commission Attention: Habitat Conservation Program From: Susan B. Edwards Mining Program Secretary Land Quality Section Re: Mining Permit Renewal Request for American Stone Company Chapel Hill Quarry - Permit No. 68-02 Orange County Please find attached for your review a copy of the mining permit application for the above referenced project. Please review this information and advise as to the probability of this operation having unduly adverse effect on wildlife and freshwater fisheries (G. S. 74-51 (2))-� Please respond by October 29. 1992 so that we may complete our review of this request within our statutory time limits. As is the case in our review of all mining permit applications, renewals and modifications, this office will carefully review all proposed erosion and sediment control measures to ensure that they are sufficient to restrain erosion and off -site sedimentation. However, any comments your agency can provide regarding effects on wildlife and freshwater fisheries would be greatly appreciated. If your staff wishes to perform a site inspection, it is recommended that they contact the person submitting this request to set up a convenient date and time. Also, please send a copy of your comments to the person noted in the application. Your continued cooperation in the review of these type requests is greatly appreciated. SBE Attachments cc: Mr. John Holley Geological Survey Section Land Quality Section Geodetic survey Section (919) 733.2423 (919) 733-4574 (919) 733-3836 P.O. Box 27687 • Raleigh, N.C. 27611-7687 • Telephone (919) 733-3833 An Equal Opportunity Affirmative Action Employer PURPOSH,OTNER VENDOR 9 'NO. INVOICE '1 DATE INVOICE'> NO ,. >-44INVOICE 'AMOUNT HOC DEPT'. SCOST AGOT `�aEOUIP NO AMOUNT.. MINING PERMIT IIENEWAL - CHAPE HILL 08/3 /92 PERM TRNWL 500.00 600 70 5718 500 00 MENICAN STONE COMPANY P.Q BOX 720 • GREENSBORO. INC 27402 ^p _ O O C O [ A 0 • MARTIN MARIETTA AGGREGATES Sept 24, 1992 Mr. Tracy E. Davis Mining Specialist Land Quality Section Division of Land Resources P. O. Box 27687 Raleigh, NC 27611 Subject: Mine Permit Renewal Chapel Hill (quarry, Permit #68-2 Orange County Dear Mr. Davis: POST OFFICE BOX 30013 RALEIGH, NORTH CAROLINA 27622-0013 TELEPHONE 1919) 781 -4550 R E C V F SEP 215 992 i ►ANIL'i QUAUTY �iE:C i IO."] We are requesting the renewal of our mining permit #68-2 which expires on September 27, 1992. Attached for your review are three copies of the following materials: Application for a mining permit . Mine map with 1'= 100' insert Reclamation map .Also included is our check #98-006854 in the amount of $500.00 to cover the renewal fee. We trust that the enclosed material is sufficient for your review and approval. Please give Horace Willson or me a call if you should have any questions. Sincerely, Carole Cameron, ASLA Landscape Specialist Environmental Services CC/lmm davisltr.2 NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT LAND QUALITY SECTION APPLICATION FOR A MINING PERMIT (PLEASE PRINT OR TYPE) 1. Name of Mine Chanel Hill County Orange 2. Name of Applicant Martin Marietta Aggregates 3. Permanent address for receipt of official mail P. O. Sox 30013, Raleigh. NC 27622 'Telephone (919) 781-4550 4. Mine Office 5. Mine We hereby certi that all details contained in this Permit Application are true and correct to the best of our knowledge. a fully understand that any willful misrepresentation of facts will be cause for permit revocation. '' ���jj/��/ ���////// 9 ""Signature ��irt, � Sin. Date I� Z. Print Name Step en P. Zelnak. `Yr. " The Land Quality Section should be notified of change in permanent address or telephone number. " Signature of company officer required. G.S. 74-51 provides that the Department shall grant or deny an application for a permit within 60 days of receipt of a complete application or, if a public hearing is held. within 30 days following the hearing and the filing of any supplemental inlormanon required by the Department. All questions must be addressed and all required maps provided before this application can be considered complete. Attach additional sheets as needed. C] APPLICATION FOR A MINING PERMIT A. GENERAL CHARACTERISTICS OF MINE 1. Total acreage at site covered by this Acres owned 18 Acres leased Property owner if leased DurhE rmit application: 2. Name of all materials mined: Granite 3. Minim method: Hydraulic Dredge Underground Shovel & Truck X Dragline & Truck Selfdoading Scraper Other (explain) Front end loaders may be used in 21ace of shovels 4. a. Expected maximum depth of mine (feet) 300 Reference elevation: b. Expected average depth of mine (feet) 125 5. Has any area(s) at this site been mined in the past? Yes X No If no, proceed to Question 6. a. Acreage of previouslyaffected land(s) at present site that has not been reclaimed: 46 acres (identifall areas on your mine map). b. When and by whom was this activity conducted? American Stone c. Acrea$,e of previously affected land at present site that has been reclaimed: 4.5 acres identify all areas on your mine map). d. When and by whom was this activity conducted? American Stone e. Do you wish to exclude any areas noted in 5a or c from this permit application? Yes No X . If yes, how much? acres (identify all areas on your mine map). 6. Present (pre -mining) use of the land (estimate acreage for each): Cropland 50 acres Pasture acres Forestry 68 acres Fish/Wildlife acres Recreation acres Other acres (Farm Buldings) 7. Proposed land use after mining and reclamation has been completed (estimate acreage for each): Cropland acres Pasture acres Forestry 83 acres Fish/Wildlife 35 acres Recreation acres Other acres B. DETERMINATION OF AFFECTED ACREAGE AND BOND 1. Number of years for which permit is requested (10 years maximum). 10 2. Total affected acreage to be disturbed during initial year of operation: a. Area used for tailing pponds it clarification, sed. basin) 4 acres b. Area used for stockpiles (inc uded in 2d) 15 acres c. Area used for waste piles (berms) 4.5 acres d. Area used for processing plants and on -site haul roads 6 acres e. Area of mine excavation(s) 21 acres f. TOTAL a-e 50.5 acres 3. Estimate the maximum amount of land to be disturbed and unreclaimed at any one time during the life of the permit. 56 acres -2- APPLICATION FOR A MINING PERMIT 4. Check acreage to be bonded*: Total affected acreage fire from B2f OR B3 (page 2) whichever is larger, equals acreage to be bonded. (See 15 NCAC 5B.0003 for bond amounts.) 0 - 4.99 acres 10 - 24.99 acres 5 - 9.99 acres X 25+ acres 5. a. Will you file a blanket bond or other security covering all of your mining operations in North Carolina? Yes No b. Have you already filed a blanket bond or other security? Yes X No 6. List any mining permits previously issued to the applicant. Martin Marietta Aggregates currently holds 44 mining permits in North Carolina C. PROTECTION OF NATURAL RESOURCES 1. a. Will the operation, involve washing the material mined, recycling process water, or other waste water handling? Yes X No If yes, briefly describe all such processes including any chemicals to be used. Process wash water is handled in a recycling system. b. Will the opperation involve dewatering the mine or discharging fresh or waste water from the mine or plant. Yes X No . If yes, briefly describe the nature of the discharge and locate all proposed discharge points on your mine map. The mine discharge is made up of stormwater that collects in the pit area. Most of this water falls directly into the pat; the remainder comes from area drainage and some ground- water seepage. All of these waters flow into a pit sump for clarification. This water is then pumped out of the pit as required. e. If you answered yes to either 1a or 1b, provide evidence that you have applied for or obtained a water quality permit from the Division of Environmental Management, Water Quality Section. This discharge is covered by General Permint No. NCG020000, issued under Certificate of Coverage No.NCG020009. * In lieu of the surety bond required by this section, the operator may file with the Department a cash deposit, negotiable securities, a mortgage of real property acceptable to the Department, or an assignment of a savings account in a North Carolina bank on an assignment form prescribed by the Department. The amount of land disturbed and unreclaimed at any one time must not exceed the bonded amount. -3- APPLICATION FOR A MINING PERMIT 2. a. Will the operation involve crushing or any other air contaminant emissions? Yes X No . If yes, indicate evidence that you have applied for or have obtained an air quality permit issued by the Division of Environmental Management, Air Quality Section or local governing body. This operation is covered by air permit #4576R10. b. How will fugitive dust from stockpiles, haul roads, etc., be controlled? Fugitive dust from stockpiles, haul roads, etc. will be controlled through use of a wet sup- pression system within the operating plant, a large water pumper truck will be used to control dust on haul roads and in the stockpile area. Much of the production will be washed stone which generates no dust. 3. Describe in detail the chronologgical sequence of land disturbing activities and reference the sequence to the mine map(s). each additional sheets as needed. A chronological sequence of land disturbing activities is provided on the mine map. Any changes in this sequence will be submitted to the Division of Land Resources for approval. -4- APPLICATION FOR A MINING PERMIT 4. a. How wide a buffer will be maintained between any mining activity and any adjoining property or highway right-of-way? Show all buffers on mine map(s). Buffers between the mininS operation and adjacent properties will be sufficient to provide adequate screening consisting of trees, existing topoggraphy and earthen berms. Buffers are shown on the attached mine map dated July 30, 1992. b. Describe other methods to be taken during mining to prevent physical hazard to any neighboring dwelling house, public road, public, commercial or industrial building from any mine excavation. Locate all such structures on the mine map if they are within 300 feet of any proposed excavation. The mine excavation will not extend close enough to the property boundaries to cause any physical damage. All quarry shots are designed to prevent excessive vibrations. Seis- mograph recordings are made when deemed necessary. The quarry shots are scheduled normally about mid -day andd will be observed by our neighbors as distant thunder lasting less than a second. This minor event normally occurs one to three times a week, depending upon production requirements. The structures are on the mine map. -5- APPLICATION FOR A MINING PERMIT 5. Describe specific erosion control measures to be taken during mining to revent offsite sedimentation (include specific plans for erosion control for mine excavation), waste piles, access/mine roads and process areas), and give a detailed sequence of installation. Locate and label all erosion and sediment control measures on the mine map. Engineering designs and calculations shall be required when needed to justify the adequacy of any proposed measures. Location of erosion control structures are included on the mine map. 6. a. Describe methods to prevent landslide or slope instability adjacent to adjoining properties during mining. The mine excavation will not extend close enough to the property boundaries to cause any landslides or slope instability. b. In excavations of unconsolidated (non -rock) materials, specify the angle of all slopes including specifications for benching and sloping. Final excavation slopes of unconsolidated materials will be 2:1. Where the height of a cut face warrants, a bench will be cut to slope toward the face of cut and draining to the pit excavation. c. In hardrock excavations, specify proposed bench widths and heights in feet. Bench widths vary from 20' - 100'. The average height is 40'. 9 191 APPLICATION FOR A MINING PERMIT 7. Are acid producing minerals or soils present? Yes No X . If yes, list all such minerals, their relative abundance and indicate their location(s) on the mine map. How will acid water pollution from the excavation, stockpiles and waste areas be controlled? 8. Describe specific plans (including a schedule of implementation) for screening the operation from public view such as maintaining or planting trees, bushes or other vegetation, building berms or other measures. Show the location of all visual screening on the mine map and provide cross -sections through all proposed berms. Existing trees, terrain, and berms will effectively screen our operations from nearby roads or homes. Trees and vegetation will be planted on the berms and in such areas as will promote future long-term screening and soil stability. 9. Will explosives be used? Yes X No . If yes, specify the types of explosive(s) and describe what precaution(s) will be used to prevent physical hazard to persons or neighboring property from flying rocks or excessive air blasts or ground vibrations. Locate the nearest offsite structure(s) to the proposed excavation(s) on the mine map. Explosives will be utilized to extract the rock from the earth. The principal explosive material is ammonium nitrate, commonly used as fertilizer. A shot pattern is used that minimizes the air and ground vibrations and provides the best rock breakage. Energy expended.in excess air blast or ground vibration is wasted energy and it is our intent to develop the most efficient blasting procedures possible. Shots will normally occur from one to three times a week and will be observed as distant thunder lasting less than a second. Permanent records are maintained on each shot which indicate the shot pattern, loading, delays, time, weather and all other pertinent data. -7- 0 • APPLICATION FOR A MINING PERMIT 10. a. What is the pre -mining depth (in feet) to the seasonal high and low ground water tables? High 55 ft. Low 32 ft. What is the source of this information? According to monitoring wells. b. Will any part of the proposed mine excavation(s) extend below the water table? Yes X No It yes, do you intend to dewater the excavation(s)? Yes X No . If yes, what impact, if any, will mine dewatering have on neighboring wells? Locate all existing wells on the mine map that lie within 500 feet of the proposed permit area. Provide data to support any conclusions or statements made. The close proximity of the rock to the surface of the ground and the low level of permeability of the rock in the quarry area indicate that quarry development will have no detrimental impact on any well in the area. Experience over the years has shown that wells bordering many granite pit excavations have not been impacted. 11. Will fuel tanks, solvents, or other chemical reagents be stored on -site? Yes X No If yes, describe these materials and how they will be stored and show the locations) of all storage facilities on the mine map. Fuel oil, waste oil and gasoline are stored inside an approved containment structure that meets all required fire protection codes. Solvents are handled by an approved dealer such as Safety Kleen Corp. Ef APPLICATION FOR A MINING PERMIT D. RECLAMATION PLAN 1. Describe your intended plan for the reclamation and subsequent use of all affected lands and indicate the general methods to be used in reclaiming this land. This information must be illustrated on a reclamation map. Disturbed areas, berms, etc., will be revegetated in accordance with the seeding schedule as provided. The excavation itself will be allowed to fill with groundwater and could be utilized far water storage, recreation, wildlife sanctuary or other uses. 2. a. Is an excavated or impounded body, of water to be left as a part of the reclamation? Yes X No . If yes, illustrate the location of the body(s) of water on the reclamation map and provide a scaled cross-section(s) through the proposed body(s) of. water. Will the body(s) of water be stocked with fish? Yes No X . if yes, specify species. The pit and supply lake will remain as permanent water storage use. The average depth of water in the pit will be determined by the ultimate depth of the pit at the time operations are terminated. The average depth of the supply lake will be approximately l0 feet. The stocking of fish will be left to the discretion of the landowner. b. Describe provisions for prevention of noxious, odious or foul water collecting or remaining in mined areas. Provide details on any permanent water outlets. Pit water is constantly "rolling over" due to temperature inversions between water layers. -9- APPLICATION FOR A MINING PERMIT RECLAMATION PLAN 3. Describe provisions for safety to persons and to ad''oining property in all completed excavations in rock including what kind of permanent barricade will be left. The location of the barricade must be shown on the reclamation map. A perimeter fence will be placed around all excavations upon completion of the mining operation. 4. a. Indicate the method(s) of reclamation of overburden, refuse, spoil banks or other such on -site mine waste areas, including specifications for benching and sloping. Overburden will be utilized to construct screening berms. The berms will be vegetated and placed as reclaimed areas as soon as reclamation is completed. Overburden piles, refuse, spoil banks, or other mine waste areas existing at final reclamation will be graded and compacted to slopes of 2:1 or flatter and will be vegetated in accord with the attached seeding schedule.' The areas will be ggraded to prevent pooling and stagnation of water and to control storm water runoff. OId or existing overburden piles that are adequately stabilized or vegetated will remain in their current configuration. b. Are any processing waste, overburden or other such mine wastes to be disposed of off -site? Yes X No . If yes, describe in detail what these wastes are and how they will be disposed. Attach a separate site map(s) showing the location(s) of the disposal area(s). Include all specifications for erosion and sediment control. Overburden material not needed for berm construction will be available as fill material for nearby construction activities. A considerable amount of overburden material has been used in this manner at many of our locations. -10- APPLICATION FOR A MINING PERMIT RECLAMATION PLAN 5. a. Describe reclamation of processing facilities, stockpile areas, and on -site roadways. The plant and stockpiles will be removed from the site. The plant and stockpile area will be graded, scarified and revegetated in accord with the attached schedule. Further, on -site roadways not needed for future development of the site will also be graded, scarified and revegetated. Erosion control structures necessary to final reclamation will be cleaned out and placed in good working order. b. Will any on -site roadways be left as part of the reclamation? Yes X No If yes, identify these on the reclamation map and provide details on permanent ditch line stabilization. The main haul road and service roads will remain for vehicular access to the lake formed by the pit. These roads shall be stabilized while the quarry is active. The roads and their need for maintenance will be determined by the future use of the site after the operation has ceased. 6. State the method of reclamation of settling ponds and/or sediment control basins. The sediment control basin and the settling ponds will be drained, filled, graded and revegetated in accordance with the final reclamation plan as approved by the Division of Land Resources. -11- APPLICATION FOR A MINING PERMIT RECLAMATION PLAN 7. State the method of control of contaminants and disposal of scrap metal, junk machinery, cables, or other such waste products of mining. (Note definition of refuse in The Mining Act of 1971). No off -site generated waste shall be disposed of on the mine site without prior written approval from the NC Department of Natural Resources and Community Development, Land Quality Section and either the NC Department of Human Resources or local governing body. Items such as drill steel, conveyor belting, screen cloth, cable, etc., will be covered by landfill. 8. indicate the method of restoration or establishment of any permanent draina&e channels to a condition minimizing erosion, siltation and other pollution. Give design details including typical cross -sections of an permanent channels to be constructed as part of the reclamation plan. Show the location(s� of all permanent channels on the reclamation map. Periodic overflow of pit will flow through existing vegetation prior to entering any adjacent waterway. -12- APPLICATION FOR A MINING PERMIT RECLAMATION PLAN 9. Describe your plan for revegetation or other surface treatment of the affected areas. This plan must include recommendations for time of seeding and the amount and type of seed, fertilizer, lime and mulch per acre and general seeding instructions for permanent revegetation and, if necessary, temporary revegetation. Revegetation utilizing pine seedlings only is not acceptable. NOTE: Revegetation Plan must be approved and signed by one of the following: a. Authorized representatives of the local Soil and Water Conservation District having jurisdiction over lands in question; b. Authorized representatives of the Office of Forest Resources, Department of Natural C. at Research and Extension personnel in the School of Agriculture and Life d. North Carolina licensed landscape architects; e. Private consulting foresters referred by the Office of Forest Resources, Department of Natural Resources and Community Development; LIME - RATE OF APPLICATION: FERTILIZER - ANALYSIS AND RATE OF APPLICATION: SEED - TYPE(S) AND RATE OF APPLICATION INCLUDING SEEDING SCHEDULE: PLANTING DATES SEED MIX RATES - LBS./ACRE March 1 - June 1 Sericea lespedeza (scarified) 50 KY-31 Fescue 120 Weeping Lovegrass 5 June 1 - September 1 KY-31 Fescue 120 Sorghum - Sudan hybrids 50 September 1 - March 1 Sericea lespedeza 70 0hulled - unscanfied) -31 Fescue 120 Abruzzi rye 25 MULCH - TYPE AND RATE OF APPLICATION: Clean straw or hay @ 2 tons/acre TACK with rapid setting emulsified asphalt at 10 gal./1000 square foot, or other tacking agent approved by Owner. OTHER VEGETATIVE COVERS: Virginia or Loblolly pines will be planted as needed to improve area screening. Revegetation and/or reforestation plan approved by: Signature Date Title Landscape Specialist T' Agency Environmental Services 13- APPLICATION FOR A MINING PERMIT RECLAMATION PLAN 10. Provide a schedule of reclamation that indicates the sequence of reclamation and approximate time frame. If reclamation is to be accomplished concurrently with mining, then show on the site map segments that are to be mined and reclaimed during each year of the permit. Add drawings showing typical sections or cross -sections and layout of proposed reclamation. During reclamation, precautions will be taken to assure that the reclamation work is not detrimental to animal or fish life. Erosion control and revegetation will be done in an expedient manner and in accordance with the then approved final reclamation plan. The settling cells will be drained, graded to ground level and revegetated. E. NOTIFICATION OF ADJOINING LANDOWNERS 1. The "Notice" form or a facsimile thereof attached to this application must be sent certified or registered mail to all adjoining (contiguous) landowners indicated on mine map unless another means of notice is approved in advance by the Director, Division of Land Resources. The completed "Affidavit of Notification" attached to this application must be submitted before the application is considered complete. SEE 0 APPLICATION FOR A MINING PERMIT F. MAPS 1. Two copies of the county highway maps and two copies of all mine maps shall be submitted with each permit application. County highway maps may be obtained from: Location Department State Highway Commission Raleigh, North Carolina 27602 Clearly mark the location of your mining operation on the county highway maps. 2. Mine maps should be accurate drawings, aerial photographs or enlarged topographic maps of the entire map area and of a scale sufficient (see minimum requirements listed below) to clearly illustrate the following. a. Property lines of the tract or tracts of land on which the proposed mining activity is to be located including easements and rights -of -way. b. Initial and ultimate limits of clearing and grading. c. Outline of all pits/excavations, d. Outline of stockpile areas. e. Outline of temporary and/or permanent overburden disposal areas. f. Location of processing plants (processing plants may be described as to location and distance from mine if sufficiently far removed). gg Location and name of streams and lakes. h. Outline of settling and/or processing wastewater ponds. i. Location of planned and existing access roads and on -site haul roads. JJ Location of planned and existing on -site buildings. k. Location of all proposed sediment and erosion control measures. 1. 100 year floodplain limits. m. Names of owners of record, both public and private, of all adjoining land. n. Map legend: 1. Name of applicant 2. Name of mine 3. North arrow 4. County 5. Scale 6. Date prepared 7. Name and title of person preparing map Map scales must, at a minimum, meet the following guidelines: SITE SIZE (From Page 2, A1) MAP SCALE 0-99 Acres 1 inch = 50 feet 100-499 Acres I inch = 100 feet 500+ Acres 1 inch = 200 feet NOTE: THIS APPLICATION WILL NOT BE CONSIDERED COMPLETE WITHOUT ITEMS 2a-n BEING ADEQUATELY ADDRESSED. -15- APPLICATION FOR A MINING PERMIT G. LAND ENTRY AGREEMENT We hereby grant to the Department or its appointed representatives the right of entry and travel upon our lands or operation during regular business hours for the purpose of making necessary field inspections or investigations as may be reasonably required in the administration of this Act. We further grant to the Department or its appointed representatives the right to make whatever entries on the land as may be reasonably necessary and to take whatever actions as may be reasonably necessary in order to carry out reclamation which the operator has failed to complete in the event a bond forfeiture is ordered pursuant to G.S. 74-59. Sig nature* 4-en,, /�,' ' Print Name: Stephen P. Zelnak, Jr. Title: President Mine Chapel Hill Company: Martin_ Marietta Aggregates *Signature must be the same as the individual who signed Page 1 of this application for a permit. Return two copies of the completed application and all maps to the appropriate Land Quality Section Regional Office serving your area. (See attached list of Regional Offices). Inquiries regarding the status of an application should be directed to the address listed on the front page of this application form. -16-