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HomeMy WebLinkAbout86-03_2_RedactedFeparm ent of Environmental Qua RRONALD G. MCABEE SIOEIIT MIDEAST OINSION November 13. 1999 Tow E. Davis State Mining Specialist Land Quality Section Department of Environment and Natural Resources Post Office Box 27687 RAIcil-L North Carolina 27611 V ion Materials Company RECEIVED DEHNR EE LAND Q;lALIT S€CI ION ffA� P.0. SO%JY99 IIIIp WINSTON-SALEM, AgnM CAAMINA 27115@J9 19911 TELEPHONE 3J6 767L4rAp Re: Transfer of Ownership from Vulcan Materials Company to Vulcan Construction Materials, LP Mine Permit Listing Attached — 26 Locations Dear Mr, Davin Vilr_:m M_rtcnals Commmy currently holds mining permits far ,hc oc d above. Effective January 1, 2000, Vulcan will transfer the above referenced locations to its wholly owned affiliate, Vulcan Construction Materials, LP ("VCM"). Accordingly, Vulcan requests that the above -referenced permits be amended to reflect VCM as the perminee effective January I. 2000, After the transfer is effective, VCM will continue to operate the referenced facilities under the Ierrns and conditions of the current permits. The telephone numbers and contact information curranlly on file with your office will remain the some. Enclosed is a check in the amount of $1.250.00. representing the processing fee for our hventy-Five (25) permits. Under separate cover, Vulcan is sending to you the original copy of a blanket surety bond and power of attorney for Vulcan Construction Materials. LP. 4600. Should you have any questions or need further information, please call Mike Poplin at (33G) 767- Current Perin ittee, Vulcan //Materials Company By l ''. ek /1f `: cc/ Its President, Mideast Division Proposed New Permittee, Vulcan Construction Materials, LP By Vulcan Materials Company Its General Partner Its President, Mideast Division C: Frederic Smith, Bradley Arant Rose & White, LLP Mike Poplin TRANSFER OF OWNERSHIP FROM VULCAN MATERIALS COMPANY TO VULCAN CONSTRUCTION MATERIALS, LP 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 the Mining Act of 1971. We further grant to the Department or its appointed representatives the right to make whatever entries on the land as may be feasunably 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. LANDOWNER: Current Permittee, Vulcan Materials Company g By _ "4e IFN"'/ Its President, Mideast Division Ronald G. McAbee Vulcan Materials Company P.O. Box 4239 Winston-Salem, NC 27105 (336) 744 - 4600 APPLICANT: Proposed New Permittee, Vulcan Construction Materials, LP By Vulcan Materials Company Its General Partner By 1, Its President, Mideast Division Ronald G. McAbee LORIECOROER Commercial Care Check 197 VULCAN MATERIALS COMPANY PO POY 4231 4401 IF PAT TLHSUV Akf� a File WINS; oY'MFM i^)ii I5 ra, f. a,,.,V aALt I �CI1� [�Y[%-_ I� IMIL Fill _ ELAN FINANCIAL Mill 47I5II10002530IE r.a+i. 11.ra rill,. SmA I;u_____._.__._- Vul[Un Materials Company MIKE POPLIN ^ � � � p PD. eox 0239 SENIOR ENVIRONMENTAL ENGINEER fC l( 17IiON.SALEM. IJGnLELEPONE $]WHOM MIDEAST DIVISION TELEPHONE LOS 7442019 FA%y6]91@019 NOV 2 9 1999 LR sy November 24, 1999 Mr. Tony Sample Assistant Mining Specialist Land Quality Section R O. Box 27687 Raleigh, NC 27611 Re: Corrected Listing of Mine Permits Regesled Transfer of thvnersh IT 29-Locations Dear Mr. Sample Thank you very much for noting the discrepancies in the earlier correspondence. please find enclosed a corrected permit listing and a check in the amount of$200.00 for the additional processing fee. I apologize for any confusion and inconvenience. Should you have any questions or require additional information in this matter, please contact me. Thank you again. Sincerely, I ike Poplin 'Ertvironmental Engineer nc name change 11-21-99 n NORTH CAROLINA MINE PERMITS MINE NAME PERMIT NUMBER BOONE 95-01 CABARRUS 13-27 CLEAR CREEK 60-1 1 CYCLE 99-01 EAST FORSYTH 34-05 E L KI N 86-03 ENKA 1 1-03 421 QUARRY 34-01 GASTON 36-24 GOLD HILL 13-04 GREENSBORO 41-20 GREYSTONE 91-01 HENDERSONVILLE 45-01 LENOIR 14-01 MORGANTON 12-02 NORTH 34-02 115 QUARRY 97-02 PILOT MOUNTAIN 85-03 PINEVILLE 60-05 ROCKING HAM 77-01 SANDY RIDGE 85-04 SHE,LTON l 7-01 SMITH GROVE 30-03 SOUTH FORK 34-04 SPRUCE PINE 61-13 STOKESDALE 41-08 STON E V I L LE 79-09 TOE RIVER 100-24 YADKIN 99-06 REVISED 11-24-99 LORIE CORDER Commercial Card Check 213 VULCAN MATERIALS COMPANY 1 msTlaN i:AL,nl s F:AN FINANCIAL SEH4ICES 4715111000253016 o.y.ai. ,..a.n o,.,.. a..I W waukA...A. NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RCSOuRCES May 21, 1999 Mr. Tim Hendrix Vulcan Materials Company P.O. Box 4239 Winston-Salem, North Carolina 27115 RE: High Airblast Incident of April 12, 1999 Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin River Basin Dear Mr. Hendrix: This letter is in response to your consultant's, Mr. Stuart Brashear's, investigation reports dated April 15, 1999 and May 7, 1999. The investigation reports contained information regarding the high air blast recording associated with the blast conducted at the quarry on April 12, 1999. An overpressure measurement of 130 dBl was measured by your company's seismograph at approximately 1100 feet from the blast. This office has completed its review of the investigation reports prepared by Mr. Brashear. It appears that the excessive airblast reading for this shot was related to windy conditions. I concur with the remediation measures outlined in Mr. Brashear's reports. Primarily, the remediation measures are as follows: 1 } Future blasting of boulders lodged in the top level of the stripping area will be shot independently of the production shot. 2) Additional cover material will be placed over these boulders to further ensure that no venting of explosive gases results in enhanced overpressure. LAND QUALITY SECTION (919) 733-4574 FAX (919) 733-2876 GEOLOGICAL SURVEY SECTION (919) 733-2423 FAX (919) 733-0900 P.O. Box 27687, RALE IGH, NORTH CAROLINA 2761 1 -7687 TELEPHONE (919) 733-3833 FAX (919) 71 5-6801 AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLE 13110% POST -CONSUMER PAPER Mr. Hendrix Page Two 3. Profiling of all front row holes will be performed prior to loading of any front row holes to ensure adequate burden. 4. Front row holes will be custom loaded to provide consistent powder distribution throughout the free face while minimizing the potential for overloading that can result in increased face velocity movement and enhanced overpressure effects. 5. A Blast Optimization Team will be formed at the quarry that involves everyone associated with the blasting program, including the driller, to ensure that the blast design metrics are based on sound blasting principles. 6. A series of field practice audits will be performed to ensure that all blasters are following prescribed best practices for determining shot design metrics as well as loading and initiation applications. In order to reduce excessive airblast readings in the future, the above remedial measures proposed by your company should be considered part of the blasting procedures used at this facility. If future airblast readings continue to exceed 128 dBl at this site, modifications to the blasting conditions currently outlined in Mining Permit No. 86-03 may be made by the Department. I appreciate your company's prompt investigation and reporting of this matter to the Department. If you should have any further questions on the above, please contact Ms. Judy Wehner, Assistant State Mining Specialist, at (919) 7334574. Very truly yours, Charles H. Gardner, P.G., P.E. CHG/jw cc: Mr. Tracy Davis, P.E. Mr. Matt Gantt, P.E. (w/copies of the 4/15/99 and 5/7/99 reports) UU11an Materials Company TO: Judith A. Wehner FROM: Tim Hendrix — Elkin Quarry SUBJECT: High Air Blast of April 12, 1999 Dear Judith Wehner: Please find the enclosed letter from Stuart Brashear. I trust this will properly address your concerns. Sincerely, Tim Hendrix Elkin 0imrry — Plant hAnnager Vulcan Materials Company R EC IF IV Fri DEHNR `, MAY 1 9 i9Q LAND QUALITY SECTION MIDEAST DIVISION ! P.O. 90X 4239 • WINSTON-SALEM. NORTH CAROLINA 27115-4239 • TELEPHONE 910 767.4600 From: sand erameae To: ram Henna Date: v+nas Time: ®:m¢I vase t or Y • a Dyno Nobel Piedmont DYNO Dy_ no Nobel Report To: Mr. Tim Upchurch Vulcmi Materials Company Winston-Salem, North Carolina CC: T, Hendrix, VMC ' P. Thomas DNP Author: Stuart Brashear Date: May 7, 1999 Additional Data Associated With the April 12, 1999 Blast at the Elkin Ouarry - As requested by NCDEHNR, the following information is provided. A total of34 holes labeled as toe holes were shot with the production shot. The spacing of C/ these holes varied depending on the quantity of rock needed to be removed above grade. (b Loading of these holes followed Dyne Nobel standard operating procedures for loading shallow holes. This nrac[ice requires gtem[ni ng heioPhtc to hp a mini!"---- of-o.,mw pe.eyn. q, (70%) of the total h A one pound cast primer was placed into each hole and total t of sixty-eight pound (68 lb) f ANFO added to provide the needed energy to fragment a series ONar_ee boulde nd on the top level of the shipping area, extending out of the dirt. This represents less than three pounds total explosive weight per hole. As a means of comparison, loading thirty percent of die hole, would have allowed up to seven pounds of it ANFO per hole, significantly more than was placed in each hole for this blast. V These holes were stemmed with clean stone and then covered with four to five feat of clean fill dirt. There was no observable ejection of stemming or premature release of explosive X) gasses during the initiation of the blast. This cannot be totally confirmed as dies. holes were initiated at the same time as the primary production blast and there may be some n correlation between the detonation of these shallow holes and the enhanced overpressure value recorded on Vulcan Materials properly. `^ 6 ^v �- LKI43AM V` c `,s May 7 1999 Dote' May ], t94aa Page. I f 3 From: Stuart Bras,Sear To: Tim Menar x Date: 5111199 Time: 08:03:24 Page 2 of 3 REPORT As specified in our initial report, windy conditions encountered during blasting operations at F,ll:in on .April 12, 1999 could certainly account for the increased overpressure value recorded on company property. Observations of the blast showed no apparent sign as to the precise cause of the atypical overpressure recorded on Vulcan Materials property. As to ramediation efforts at Elkin, Dyno Nobel Piedmont is keenly aware of the situation with regard to both regulatory standards as well as community impact. Measures have been taken to insure compliance with state and federal guidelines as well as to minimize overpressure and vibration effects to the community. As deg, elopment of the Elkin quarry continues, future blasting of boulders lodged in the top level of the stripping area v%711 be shot independently of the production blast. This will isolate overpressure effects from the detonation of these shallow hole shots. Additional cover material will also be placed over these boulders to further insure that no venting of explosive gases results i1i enhanced overpressure. Profiling of all front row holes is performed prior to loading of any front row holes to insure adequate burden. These holes are custom loaded to provide consistent powder distribution throughout the free face while minimizing the potential for overloading that can result in increased face velocity movement and enhanced overpressure effects. A Blast Optimization Team has been formed at Elkin that involves everyone associated with the blasting program, including the driller, to insure that blast design metrics as based on sound blasting principles. A the request of Vulcan Materials, a series of field practice audits are currently being performed by Dyno Nobel Piedmont's senior technical tnanag;,rs to insure that all blasters are following prescribed best practices for determining shot design metrics as well as loading and initiation applications. The results of these measures has been an overall reduction in measured overpressure values over the past several montlis. Higher readings, such as die one under discussion in the report, are not indicative of the overall success in lowering overpressure effects by Elkin and Dyno Nobel Piedmont personnel. it must also be noted that all overpressure readings associated with Dyno Nobel Piedmont blasting operations at Vulcan Materials Company sites fall within the overpressure standzu-ds recommended by the US Bureau of Mines based on the technical capabilities of modem portable blast monitoring devices. The impact of these improvements in hardware capability is currently being addressed by NCDHENR. The staff of the Land Quality Section is to be applauded for their understanding of this issue and actions currently under way to correct this situation. €LKIN4.SAM CNVORKAMIPRO Date: May 7, 1999 Page: 2 of 3 From: Stuart 6rashear To: Tim Hendrix Date: 5117199 Time: 08:09:37 . Page 3 of 3 REPORT Should any additional information be needed, please do not hesitate to contact this office at once. Thank you again for your continued trust in our capabilities. Respectfully submitted, Stuart Brashear, ]SEE Technical Services Manager Dyno Nobel Piedmont, Inc. ECKIN4.5AM G:1VV0RK1AMIPR0 Date: May 7, 1999 Page: 3 of 3 MAY 10 1999 ,ter _ `•1`' �1 1go•'C �� III I.. 1 . I I II 1 I I it I i I I 1 NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES ❑1VIS10N OF LAND RF-souRCES April 29, 1999 Mr. Tim Upchurch Vulcan Materials Company P.O. Box 4239 Winston-Salem, North Carolina 27115 RE: High Airblast Incident of April 12, 1999 Elkin Quarry Permit No. 86-03 Surry County Yadkin River Basin Dear Mr. Upchurch; We have reviewed the April 12, 1999 blasting records and Dyno Nobel Piedmont's investigative report you submitted for the above referenced mine site. However, the following information is needed to continue the investigation of the April 12, 1999 high airblast incident: Please submit a scaled map of the seismograph locations in rplatinn to the blast, Also indicate the wind direction. No information was given on the amount of stemming, burden and spacing of the toe holes that were shot along with the production blast. Please submit this information. 3. No suggested measures have been included in the report to lower the airblast. Given that this incident is the fourth reported high airblast since December, 1997 at the subject quarry, it is highly recommended that measures be taken to reduce the noise levels. Please be advised that our review cannot be completed until the above items have been addressed. Once the review has been completed, the Director may allow blasting practices in the area to resume. Please forward the requested information to my attention at the following address: LAND QUALITY SECTION (919) 733-4574 FAX (919) 733-2876 GEOLOGICAf. SURVEY SECTION (919) 733.24y3 FAX (919) 733.0900 P.O. BOX 27587, RALBIGH, NORTH CAROLINA 27611-7687 TELEPHONE (919) 733-3833' FAX (919) 715-8801 AN EQUAL OPVMI T1]NITY I AFFIRMATIVE A&TlhN FMPI AVER - 510% RFC__V£_1_F11/10% POSY-CON5IJMER PAPER nr ~ Mr. Upchurch Page Two Land Quality Section P. O. Box 27687 Raleigh, N. C. 27611 Please contact me at (919) 733-4574 if you have any questions. Sincerely, Judith A. Wehner Assistant State Mining Specialist Lpl iV ODUINty Section i NI'l1IF cc: Mr. Matt Gantt, P.E. Mr. Charles H. Gardner, P.G., P.E. Mr. Tracy E. Davis, P.E. LAND QUALITY SECTION BLASTING ANALYSIS WORKSHEET (* = denotes fields where input data is needed) Permit No.*: 86-06 Permittee*: vmc Mine Name*: elkin qurry Blast Report No.*: 8 Date of Blast*: 4 /12/99 Time of Blast*: 14:41 Peak Particle Velocity Check: D = Distance to closest offsite occupied structure (ft): D* = 1230.00 W = Maximum pounds of explosives per delay (pounds): W* = 772.00 SD = Scaled Distance: SD = D/W10.5 SD = 44.27 V = Peak Particle Velocity (inches per second): V = 160 (SD)"-1.6 V = 0.37 (*max. limit in mining permit is: V = 1.0 ips) Based on known distances from the blast to the seismograph and any additional location, the expected vibration level can be estimated at the second location as follows: V = Particle velocity measured by the seismograph (ips): V* = 0.13 DS = Distance from blast to seismograph (ft): DS* = 1100.00 d = Distance from blast to second location (ft): d* = 1230.00 PPV = Theoretical peak particle velocity at the closest offsite occupied structure (ips): PPV = V(DS/d)"1.5 PPV= 0.1099 Airblast (Overpressure) Check: P = Unconfined Airblast/Overpressure (psi): P = 82 (D/W"0.33)"-1.2 P = 0.223575 To convert (psi) to (dBL): (P/2.9 x 1011-9)log x 20 P = 157.74 AB = Confined Airblast/Overpressure (dBL): AB = P (dBL) - 35 dBL (for quarry situation) AB= 122.74 (*max. limit in mining permit is: AB =1 dBL) Explosives Column Check: (this is a very approximate method based upon numerous assumptions; specific densities may vary greatly depending upon the type and manufacturer of the explosive products used in the shot; must consider each explosive used; refer to Dupont Handbook for actual SPD, otherwise use the following:) Assumptions (per Ireco): If "straight" emulsion is used, use SPD (specific density),= 1.20 If a "blend/slurry" is used, use SPD (specific density) = 1.25 If "straight" anfo is used, use SPD (specific density) = 0.85 Ratio between explosives: Total pounds of Explos. #1" = 15150.00 Total pounds of Explos. #2" = 1003.00 Ratio between explosives = 15.10 Average pounds of explosives used per hole (pounds)" = 378.00 Breakdown of average pounds of explosives per hole due to ratio: Explosive #1 = 352.97 Explosive #2 = 25.03 SPD = Specific densities for each explosive: SPD for Explos. #1" = 1.20 SPD for Explos. #2" = 0.85 HD = Hole Diameter Used in Shot (inches): HD* = 5.75 LD = Loading Density (pounds per foot of column): LD = SPD(.34)(HD)^2 LD for Explos. #1 = 13.49 LD for Explos. #2 = 9.56 Explosive column height for each explosive (feet): Explos. #1 = 26.17 Explos. #2 = 2.62 Total explos. column height = 28.79 Stemming height used in shot (feet)" = 10.00 Total height of explosive column(s) and stemming in the hole = 38.79 Total depth of hole denoted on the blasting report for the shot in question" = 40.00 Analysis Completed By: Date: '�/ UU1[an Materials Company April 19, 1999 Mr. Tracy Davis \ PE Stern ?,A;.; C�C1'1�119JJLci list Nc->>NK1M PP R N Land Quality Section P.O. Box 27687 .Raleigh, NC 27611 gy RE: Elkin Quarry Dear Mr. Davis: On April 12'h I notified your office by phone of an overpressure value recorded earlier that day at our Elkin Quarry. As stated in Mr. Stuart Brashear's investigation report we deployed two seismographs on the event in question. One was located on Aaron Road at approximately 2600' in distance with a recorded value of 119 dB. The other was located on VMC property approximately l 100' in distance with a recorded value of 130 dB. During your review of the investigation report you'll find an outline of the probable cause of the April 121h. event and recommendations to prevent similar occurrences in the future. These findings will be inr_nrpnrateri in a. r blast;nd program at this facl!lty l,,,medlately. I truly appreciate your tliiic in this matter and value your response. Should you have any questions or suggestions, please do not hesitate to contact me direct at 336-835-1439. 1 took forward to hearing from you in the near future. Sincerely yours, VA///6 i Upchu Oh ZZ Area Operations Manager Cc: Tim Hendrix Tom Carroll Truman Chidsey Gray Kimel MIDEAST DIVISION 1 P.O. BOX 4239 • WINSTON-SALEM, NORTH CAROLINA 27115-4239 • TELEPHONE 919 767-4600 'From: Stuart Brashear To: Tim Hendrix bate: 4,116191) Time: 08:19:00 Page 2 of d 0 is Dyno Nobel Piedmont DYNO Dyno Nobel Report To: Mr. Tim Hendrix Vulcan Materials CompariN Elkin, North Carolnia cc: T. Upchurch, WvIC R. McAbee. VMC A. Hodson, DN'P P. Thomas, DNP Author: Stuart Brashear Date: April 15, 1999 Investigation of Production Blast. of April 12, 1999- NIr. Hendril In association with blasting operations conducted at the Elkin quatry, Dyno Nobel Piedniont's technical sein+ices group has reviewed collected seisinic data related to blasting operations on April 12, 1999. Of interest Nvas the recorded over -pressure values from the seismic units deployed for this blast. One unit, located on Vulcan %Materials Properly. recorded an overpressure value of 130 d13, in excess of cun-eni lnnung standards as enforced by the NC Department of Health. Environnwnt and Natural Resources. In revievving this conditions of permitting for mine and quarry operations ui Noilli Carolina. it is rannirari fhnr nvorrlraccstra vnlnPc rollinin nt nr halnnv 1 7R dR it the clncoct non -company owned structure or dwelling. This structure is situated at a distance of 1230 feet from the blast site. The 130 dI3 value ryas recorded oil VXIC property at a distance of 1100 feet. In reviewing the data associated with this blast, it is necessary to provide some sort oI' interpolation with regard to expected overpressure values at the structure to deterinilie of a violation of the conditions of the pen -nit existed for tivs blast. Additional seismic data was recorded from seismic equipment allocated to Aaron Road. t\ value of 119 dB was recorded at a distance of 2600 feet. ELKIN4.SAM C:%V'OR C1AM1PRO Dam April 15, 1999 Page; 1 of 3 from: Stual 9rashear To: Tim Hendry D9e:4110199 Time U$:18:54 Page 3 of • To determine if the predicted overpressure value for the closest non-comparrowned dwelling was greater than 128dB, a logarithruic plot of tree data points was created, using the following for data points 130dB (in psi) at 1100 feet 128 dB (in psi) at 123C foci • 119 dB (in psi) at 2600 feet If the data point related to die 128 dB value for 1230 feet is below the regression titre front the two known points, it is estimated that the value at this location would indeed represent a violation. Overpressure calculation o.ot 1sod B 128 dB I 119 tl B I 0.001 r 100 bore flistence It appears that the data point associated with the predicted 128 dB value at 1230 feet does not fall below, the line connecting the known values. Based on this data, it is our conclusion that the predicted valve for a distance of 1230 feet front the blast dated Match 12, 19W was 128 dB. This does not represent a violation of the mining permit fbr the Elkin operation. As to the cause of the atypical value recorded for this blast, it was observed that the seismograph in question was downwind and that windy conditions were present that day. A review of recorded National Breather Service archive data from the Greensboro Triad Airport indicates wind gusts up to 37 mph for April 12, 1999. There is no evidence of any unusual conditions present for the blast. A detailed drillers foe ar:as present and stcannliug heights were adjusted out a hole -by -hole basis to insure pi roper confinement relative to collar conditions. No coniplahits were received, and it is die opinion of this office that the value =LAIN4.SAM C:IWOPKrSMIPFO oate'. Apni 15, Islas Pape: 2 or 3 'From: Stuart Brashear To: Tim Hendrix Date: M15199 Time: UB:20:51 Page 4 of 4 0 0 RAPPORT recorded on VNIC property was unpacted by high wind conditions present during blasting operations on this clay. If you have any questions or require additional information regarding the contents of this report, please do not hesitate to contact this office at once. Respectfiilly submitted, Stuart Brashear. ]SEE Technical Service \Manager Dvuo Nobel Piedmont ELKIN4.5AM 0;I.VV0RSWMIPR0 Date: April 15, 1999 Page: 3 of 3 Vulcan ® ° Materials Company LL p Blasting Report Ouarry n/n Report No. a Cate y- /9-1 Type of Shot r txC IUD^ Exact Time a' `1 i Type of Material Srgn; �f. Shot Grid -3 Distance /aL (Ft.) Direction S Grid CC'ciii, (To nearestoccupiedbuilding neither ownnn�e�d, or leased) M1 Seis. Locationyrn�'. Dist. to Seis. /�-Tl' Grid CC-IVG "'2 Seis. Location Dist. to Seis. Grid w3 Seis. Location Dist. to Seis. Grid HolelDeck Delay Period Depth Stemming Total Pounds Per HolelDeck ND O 39 /0 3-742 a as 3 l0 37a 3 3 Y/ /0 400 Ll 50 z// 10 400 S 7$ ql d 400 6 100 Y/ 400 // Maximum Number of Holes �7 3 Type of Stemming � Ibs. Per Diameter (inches)' S 3/� Face Height 35 Delay I Spacing /`I/ Sub Drilling y F Burden /a Number of Rows Method of Firing e of Circuit: Series Parallel g oaPl Type Parallel Series T e Of D lays: Downline 0 Surface �n Trade Name 5 n � iek Of 7 11 16 L(oo 50 �(� /O L(00 S /7 O 400 10 a00 Y7 G 400 l i7 3 /0 37a is va 3 /0 3 w / 67 3 la 3y-7 o2 301 /6 37a ` /s // 39 1 37a Weather ❑ Clear [T loudy. ❑ Fair ❑ Snow (check Iwo) ❑ Hot E Warm ❑ cold ❑ N ❑ NE ❑ East ❑ BE Wind From ,-,/ (check one) ❑ S El SW ❑ west Lm Nw /(o 39 1 10 13�a 7 167 3 16 1 / /42 34 a �.� / all 34 G 37a aaa 3i 7a Fragmentation ❑Excel Zv. Good ❑Good ❑Fair ❑ Backbreak Z 10 ft. ❑ 20 H. ❑ 3D ft. ❑ 40 ft. 1-150 fl. or more 71 s 39 /0 7aPoor ol`a $ 39 37a a3 10 39p /0 3 7a Trade Name of Explosives Amount a / 3 / /I) 7Q p /SiSo as /s f 39 / 7a k o 3s0 a6 /8 3 D 7a 16 on I < SV 1 39 1 /16 3)a 34 1 asv I V 1 16 5a 3 359 1 3 7a Total /i 7,3 Ibs. Total Pounds _ - ��/ 7l p Powder Factor Gal of Oily 7 et Oil Content Bench 9a �Grid Map Dai99 Scale Distance 77��Produced Tons of Materials a 0S7 Remarks: Distribution: Administrative Dept. — ORIGINAL I y Plant Office File Su blaster Signature _ tCL.i �• S� State Safety Rep. License or S.S. No : VM::4117420 REV Hole/Deck No. Delay Period Depth Slamming Total Pounds Per Hole/Deck 3a o .39 /d3 w 33 !SI 3q /D �a U /76 39 / �a 3S aol 3 37a 3c� fro 3S c� 7a 37 aSl 3 /0 7a a� a 3s / 7a S 3 /d 37 Yd a o s9 d a 4f M 39 /c 37a 31 f. 3 37 a Y3 401 39 /a 3K a Total Pounds Tans of Materials Produced air-S7 ,L --�--a--;-Ty-j—rl--�—�F 1- 4 -: .. I L -- - — — -1---- - Typical Hole Primer (Show Location and t r' Stemming < I r f Top of Bgnch I Length 3Q Ic YI (FtJ .. 3SO05 1....:+=:.r of Hole Floor Level 3S of Sub Drilling ir r A Piedmont Explosives, Inc. War ,Et,ec✓ EsdmaiedinnadOn 259 Mosswocd Road Daw •y'S- Adual Waists Olin,K 286W )Insalsontatwe el Scale Donancer Orrice (704) 29-/78/ Shaft New /2 Esdiniated Powder Factor GA —MO —VAC (800) <38 1811 N10(N s U3 / A Nal Po del Facto, _ - I _ Qee/s F e./Sfi,Si<� a r I (5 tar yb I % I oil SIT - - �- { rI I I I _ I I L_ i i�7 I, . } _ ' - • - 1 ; I �i _ CAN MATERIALS COMWNY ® DRILL LOG bririNn - b11U 4dn tn1 N.N Ni, twit 13641 MI bw Wl bul blot tlfi N•. Mi. N It" 1464 bt&ww WNn 00446# IN41 btMilt %F"44 M•u of Fm IWILI AnMi /J/.Y I . bib1N trot N pNl ..+ r«••n Ii••4w.u/ /1lului N o,au Ult b•rlt 11•N b•tlt c•nwwnY M Ilw1 041131 XL ..11 BNninlnli in IW b•I41 c,r F{ _ /6 '7pal 1�:. 5r•B n . t Fl ,sKc✓P .rG To o e !f foS F+ a rc r ✓/� Tc� Ft Df SPA 11. Fi ,'0 .. / CA- h 3TC�1_ la r3 1 ,00pr 3 f ON O O�,b f [:rar' ArkcT03o1 F a✓ �oo it 76 iG Fl c.,F YN '7F ON%PxAPI ON TOP -Fe.E " Y To 3 p m: � � F} �r0 11 �i ow o -.- o /gfr Flo,, ✓ . Gf ri . 341 To 36 v: Fl 11 Ff /6 ' C h r e ✓ G,N o vugcti zq iro e / fa 1f. F} n� 1 ,v rake i F rake ✓F '�.a( P, rynr'1 Fors F ro. se4m 14 OY' 'Y.+ / 'r All is°re yKr a, irsa ,.0 S _Bra �O FI' ✓ Ig o / r 1S F l3mkc ✓�� 1 /3 F IS I-P JP l0 /3 3eRa11 - PF crocks 11 To -r) se r r ✓ Rrvd p yffI , .; C1 Y'I 11 f0 ry FF SY/l,ry 11 / j b drrDk1 ✓/ 1 a TO ! F Af"I 11 t r D 4 1'1F}Qro 11. - ,toro ronm t rn- t ** SAFEGUARD SEISMIC UNIT 2000DK ** SNE24M Monday, 4/12/99 14r37:06 Event: 008 Client: VULCAN Operation: 106 ELKIN SSU Location: D46 AARON/]DHNSON Distarce to Blast: 2653 OP=rator MITCH WAGONER Comments: SG BB 34 ELEV. 972 Trisser Levels: 0.02 in/sac, No db Record Time: 5 secs Ranee: Auto 5 ips VIBRATION & SOUND TIME HISTORY Time Scale: 0.1 (sec/div) Data Scale (seismic): 0.32 (in/sec) Data Scale (air): 0.009 (Psi) SUMMARY L T U P=u ('.,/sec) 0.06 0.08 0.04 PD (0.001 in) 1.61 0.58 1.61 Ppi 0.05 0.03 0.02 FR-O (he) I6.1 25.0 16.6 RESULTANT PPV: (in/sec) 0.09 PEAK AIR PRESSURE: (db) 119 (Psi) 0.00261 Monday, 4/12/99 14:37:08 DYNAMIC CALIBRATION CHECK L T U 9 SHAKETABLE CALIBRATED: 11/18/98 BI GeoSonics, Inc. Box 779, Warrendale, PA 15095 TFL: 412-934-2900 ** SAFEGUARD SEISMIC UNIT 2BBBDK ** SN:2318 Monday, 4/12/99 14:37:09 Event: 008 Client: VULCAN MATERIALS Operation: 106 ELKIN SSU Locationi C43 AARON/LEDFORD Distance to Blast: 2600 Operator: MITCH WAGONER Comments: SS BB 34 ELEV 972 Trisser Lapels: 0.02 in/sec. No db Record Time: 5 secs Range: Auto 5 ips VIBRATION & SOUND TIME HISTORY Time Scale: 0.1 (sec/div) Data Scale (seismic): 0.32 (in/sec) Data Scale Cair): 6.009 (psi) SUMMARY L T U PPV (in/sec) 0.11 0.07 0.06 PD (0.001 in) 1.08 0.63 1.40 PPP <a) 0.05 0.02 0.02 FRED (b_. 15.1 18.5 15.6 RESULTANT PPV: (in/sec) 0.11 PEAK AIR PRESSURE: (db) 119 (PSI) 0.00261 Mo Man. 4/12/99 14:37:09 DYNAMIC CALIBRATION CHECK L T U S SHAKETABLE CALIBRATED: 2/20/99 By GeoSonics, Inc. Box 779, Warrendale, PA 15095 TEL: 412-934-29RO .nv s.. RATIO SEARS m INSTRUMENT MEM W:V f( • -mD EVENT a OR] NOTEa CUSTOMER : VULCRS Oil-MfMfiM OWITION:VNIC PROPERTY FEET TOOPERATOR AN �- COMMENT c TOTTEN TENIMITI SEIV SOLOAD E mem 1IS RECORD 03 TIE: i IMMIMMSMIKE PROMPT _;a FI EDUE..D. a.I .^ GIRI RECORD ee/m o.VNII L. T.R. D. xs GIMP F- AM CILIMPATED OR ALARM ST&RT Ea.. III y/�9g If car✓�. R,� a.�yLPn,c_�✓ ��4.9_. l� c, /la in�G r� 3 /Juomr o �.w p& 4 I I /if1wl �I I I�I i� ��I NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES .Ij v/ DIVISION OF LAND RESOURCES August 27, 1998 . � Mr. Tim Hendrix �Am6s S. NQNT.IX GOVERNOR z,�{ Vulcan Materials Company 17 Mideast Division -- P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 w.TNE I IA,..!,;.r 'SECRETARY RE: High Airblast Incident of August 4, 1998 - =4c Elkin Quarry Mining Permit No. B6-03 Surry County Yadkin -Pee Dee River Basin 'I CNAR.E. [RECTUNER "P.G.. p, E.IDIR ECTO11 Dear Mr. Hendrix: AND STATE GCOLOOtirta:.: This letter is in response to the investigation ."� report prepared by Dyno Nobel, Inc. on your company's behalf dated August 6, 1998. The investigaticn report . contained information regarding the high air blast _ recording associated with the blast conducted at the ' quarry on August A. 1998. An overpressure measurement of 130 dbl was measured by your company's seismograph at approximately 950 feet from the blast. --- This office has completed its review of Dyno Nobel, Inc.'s investigation report. It appears that the excessive airblast reading for this shot was t -- related to stemming ejection and/or cratering of second 4; or third row holes caused by the loss of borehole confinement of this section of the blast. I concur with the remediation measures outlined in the report. The remediation measures are as follows: Add additional delay time to holes in the back corner of the blast, providing added time for relief to form. This should provide better stemming confinement and energy will be able to react in a horizontal, not vertical, manner. This will also minimize back break and wall damage in the corner of the blast, providing better conditions for the next blast. _ LAND QUALITY EDITOR 19191733"9374 FAX19191]33-28]8 GEOLOGICAL SURVEY SECTION 4919) 733 2423 FAXf9191733 0900 w. NORTH CAROLINA 27611 7687 TELEPHONE19191733.3833 FAXOIDI71SUS01 �PPORTV NITY / AfnRRATtV E ACTION EMPLOYER " 50g AEwaEO/10% POST -CC IS V IC a PAPER Mr. Hendrix Page 2 2. Evaluate the effect of increased between row delays throughout the blast. This will allow for Less confinement for second and third row holes, minimizing the potential for stemming ejection or cratering. Such a design will be compared to utilizing faster between row delays combined with increased stemming heights to compensate for added confinement. 3. Work with the drillers to ensure proper data is provided to the blaster. In order to reduce excessive airblast readings in the future, the remedial measures proposed by your company through its consultant should be considered part of the blasting procedures used at this facility. This office looks forward to receiving the results of the blast design modifications, once they have been implemented and thoroughly evaluated at the Elkin Quarrv. If f-ture airblast readings continue to exceed 128 d-1 at this site, modifications to the blasting conditions currently outlined in Mining Permit No. 86-03 may be made by to Department. I appreciate your company's prompt investigation and reporting of this matter to the Department. If you should have any questions on the above, please contact Mr. Traci, Davis, P.E., State Mining Specialist, at (919) 733-4574. Very truly yours, Charles H. Gardner, P.G., P.E. CHG/td cc:E— Mr. Matthew Gantt, P.E. (w/copy of 8/6/98 report) Mx. Hendrix Page 2 2. Evaluate the effect of increased between row delays throughout the blast. This will allow for less confinement for second and third row holes, minimizing the potential for stemming ejection or cratering. Such a design will be compared to utilizing faster between row delays combined with increased stemming heights to compensate for added confinement. 3. Work with the drillers to ensure proper data is provided to the blaster. In order to reduce excessive airblast readings in the future, the remedial measures proposed by your company through its consultant should be considered part of the blasting procedures used at this facility. This office looks forward to receiving the results of the blast design modifications, once they have been implemented and thoroughly evaluated at the Elkin Quarry. If future airblast readings continue to exceed 128 dtl at this site, modifications to the blasting conditions curre_:l outlined in Mining Permit No. 86-03 may be made by the Department. I appreciate your company's prompt investigation and reporting of this matter to the Department. if you should have any questions on the above, please contact Mr. Tracy Davis, P.. State Mining Specialist, at (919) 733-4574. Very truly yours, Charles H. Gardner, P.G., P.E. CHG/td cc: Mr. Tracy Davis, P.E. Mr. Matthew Gantt, P.E. (w/copy of 8/6/98 report) +^' NORTH CAROLINA DEPARTMENT OF gL ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES August 27, 1998 ::I..NE6 e. RQNY3R4 Mr. Tim Hendrix ;GwenrvoR ,+ Vulcan Materials Company Mideast Division P.O. Box 4239 Winston-Salem, North Carolina 27125-4239 S ECPETMY rrn� i.r I, zi C M WEONE P.G.• P.E:OIRECTOe f`.'0J IST.NO STATE GEOLOOI ST�q=�1 to, Ky RE: High Airblast Incident of August 4, 1998 Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin -Pee Dee River Basin Dear Mr. Hendrix: This letter is in response to the investigation. report prepared by Dyne Nobel, Inc. on your company's behalf dated August 6, 1998. The investigation report contained information regarding the high air blast recording associated with the blast conducted at the quarry on August 4, 1998. An overpressure measurement of 130 dbl was measured by your company's seismograc;q ly 950 feet from the blast. This office has completed its review of Dyno Nobel, Inc.'s investigation report. It appears that the excessive airblast reading for this shot was related to stemming ejection and/or cratering of second or third row holes caused by the loss of borehole confinement of this section of the blast. I concur with the remediation measures outlined in the report. The remediation measures are as follows: Add additional delay time to holes in the back corner of the blast, providing added time for relief to form. This should provide better stemming confinement and energy will be able to react in a horizontal, not vertical, manner. This will also minimize back break and wall damage in the corner cf the blast, providing better conditions for the next blast. LAND QUALITY SECTION (9191933.4574 FAX 4919) 7333970 GEOLOGICAL SURVEY SECTION (919)733 2423 FAX (919)733-0900 P.O. Roa 27687. RALEIGH. NORTH CAROLINA 2761 L>607 TELEPHONE 19161733 3533 FAX (9191 T15�6001 AN FOWL OPPORTUNITY,AFFIRNrtiVE ACTION EMPLOYER -50%q¢cva ED110% POST COISVIER PAPER D; no Nobel PiedmontInl T i1.Ui r� ' DDyynllo Nobel Memo To: Mr. Tracy Davis NCDEHNR Raleigh, North Carolina CC: T, Hendrix, VMC P. Dotson, VMC B. Graham, VMC J. Smack, VMC P. Thomas, DNP A. Hudson, DIN']? M. Corona, NBI From: Stuart Brashear Date: August 6, 1998 Investigation Into High Air Blast Value at the VMC - Elkin Quarry Recorded August 4,1998 Mc Davis, On August 4, 1998, during the detonation of a production shot at the Elkin quarry, an air blast value of 130 DbL was recorded by the permanent seismic monitoring station located approximately 950 feet from the blast. On the same day, an investigation into the enhanced air blast result from this blast was undertaken by the technical service group of Dyno Nobel Piedmont. BLAST METRICS The blast in question was located on the second level of the current pit development area. The rock varies from competent gray granite to a weathered sap rock. The shot consisted of 47 holes, 5,5 inches in diameter. Hole depths ranged from 41 to 43 feet. The shot was drilled on a 13 by 15 pattern, providing a powder factor of approximately 1.5 tonsipound. Given the variation in material to be found in this location of the pit, drill logs were consulted by the blaster to aid in determining proper stemming height. In addition to using accepted industry standards for adjusting stemming heights for broken material found in the collar region, each hole was visually checked with a mirror to confirm the drill log data. ELKINS.SAM C.1woRiMMPRO Page: t of 4 VMZ� , Gil INITIATION The shot was initiated from the open corner with a delay sequence of 17ms between holes in each row and 59 milliseconds between rows. ANALYSIS Analysis of the blast indicated a well controlled shot with the exception of�oLi e or two holes fhat_vented through the stemming region These holes were located on the second or third row of the blast; in _the far rear. of the _blast) This area, in addition to being at the end of the initiation sequence, were also;in an area of_weathered-sap rock) The remaining holes of the blast showed good containment of the collar and no additional stemming ejection. % Observations of the blast indicate cratering around one or two holes that resulted in the €, venting of dirt and weathered material. This loss of borehole confinement resulted in of stemming release pulse on the seismogram that measured a value of 130 dB at 1 Hz. Cratering and release of borehole pressure through the stemming region is typically related to one or more of the following causes. • poor stemming material • inadequate stemming material • broken material surrounding the collar region • excessive confinement A review of the blast report and loading procedures followed at Elkin on this day shows proper stemming material being used (clean stone, no drill cuttings). The drillers log was consulted prior to loading operations to determine needed stemming height for confinement of borehole pressure. In addition, the blaster utilized a mirror to visibly check to collar region of each hole to confirm the data provided in the drill log. Nominal stemming depths were used based on accepted industry standards for adequately confining borehole gases. Given the location of the hole or holes that vented, it is the opinion of this office that one of two variables could have caused the stemming release pulse. -Mil— er inadequate _stemming r height due to- the quantitv'of broken material. inthe-collar region of the holes in question, or, inadequate time between row detonation to provide relief to second and.third row holes: Given the geology of the rock in the area of the shot where venting occurred, additional stemming may have been required to insure confinement in the collar region. With weathered material, the release of borehole gas pressure can completely bypass the stemming itself and vent around the hole, carrying stemming material along with collar material out of the shot bench. It is the responsibility of the blaster to compensate for weathered or broken material in the collar region. To do this properly requires a precise drill log. The drill log for this blast provided data as to the perceived depth of sap rock or ELKIN5.SAM C:MORKAMIPRO Page: 2 of 4 dirt. It is possible that on the holes in question the driller was not able to determine the presence of weathered material or the proper depth of weathered material. This could have resulted in the blaster not having stemming material in the competent rock to contain the borehole pressure from the detonation process. cif=the_stemming_region was entirely"in `. (weatheredmaterial,released gas pressure can bypass the stemming and move through. the ,weaker, weathered material to the surface. Gas pressure always moves via thepath of least ♦=resistance. The second possibility is that of insufficient time between rows during the detonation process. Again, the released energy of the explosive column will always move towards the path of least resistance. Of insufficient time is- given for thefrontrow burden to moveoff ,the. face, the path of least resistance for the second (andthird row) changes from_cu0 'toward the free face to up to the shot bench This is also found in the last holes of the shot in the confined corner. This part of the shot tends to be overly confined due to the geometry of the blast. This can result in venting of the final holes in each row,particularly in the back rows of a given blast. The response time for rock (the time between detonation of the explosive column and actual movement of the effected rock mass) can vary with burden and rock type. Given the soft, weathered material found in the blast in question, the response of this rock mass would be expected to be slow. The between row delay interval was partially influenced by the design of the shot. Given the location of several holes on the opening portion of the blast, the between row delay was limited to 59 ms. This may prove to be insufficient time to allow for movement of front row burden prior to initiation of the second row and so forth. Given the confinement shown in the remaining holes in the blast, the delay interval between rows was sufficient to provide adequate relieve for most of the holes in the blast. For the holes that vented, either increased stemming height or increased between row burden (or a combination of the two) was required to provide needed confinement to prevent the enhanced air blast values recorded for this blast. (—REM EWATION-M EASITRESt To insure that subsequent blasts in this area do not result in undesired air blast levels, several factors will be evaluated in the next series of blasts in this area to determine optimal design metrics to insure compliance with the Elkin quarry Mining Permit. �i Add additional delay time to holes in the back comer of the blast, providing added time for relief to form. This should provide better stemming confinement and energy will be able to react in a horizontal, not vertical manner. This will also minimize backbreak and wall damage in the corner of the blast, providing better conditions for the next blast. ELKIN5.SAM CAWORq PRC Page: 3 a 4 Evaluate the effect of increased between row delays throughout the blast. This will allow for less confinement for second and third row holes, minimizing the potential for stemming ejection or cratering. Such a design will be compared to utilizing faster between row delays combined with increased stemming heights to compensate for added confinement. Work with the drillers to insure proper data is provided to the blaster. The steps outlined above will be systematically employed and evaluated over the next series of blasts in this area of the Elkin pit. CTI}e- results_of the blast= design modifications will be submitted to your office -as soon as, they have -been implemented and evaluated'at-Elkin quarry !The time at which odr findings - ,are submitted will be based in part on the blasting schedule -at -Elkin. Should you have any questions or require additional information regarding the contents of this report, please do not hesitate to contact me at once. Respectfully submitted, Stuart Brashear, ISEE Technical Service Manager Dyno Nobel Piedmont ELKIN5.SAM C.\WORK%AMIPRO Page: 4 of 4 LAND QUALITY SECTION BLASTING ANALYSIS WORKSHEET (* = denotes fields where input data is needed) Permit No.*: 86-03 Permittee*: VMC Mine Name*: Elkin Quarry Blast Report No.*: 26 Date of Blast*: 08/04/98 Time of Blast* Peak Particle Velocity Check: D = Distance to closest offsite occupied structure (ft): D* = 950.0 W = Maximum pounds of explosives per delay (pounds): W* = 878.0 SD = Scaled Distance: SD = D/WAO.5 SD = 32.06095 V = Peak Particle Velocity (inches per second): V = 160 (SD)^-1.6 V = (*max. limit in mining permit is: V = I.0 ips) 01:08 PM Based on known distances from the blast to the seismograph and any additional location, the expected vibration level can be estimated at the second location as follows: V = Particle velocity measured by the seismograph (ips): V* = 0.17 DS = Distance from blast to seismograph (ft): DS* = 2500 d = Distance from blast to second location (ft): d* = 950 PPV = Theoretical peak particle velocity at the closest offsite occupied structure (ips): PPV = V(DS/d)^1.5 Airblast (Overpressure) Check: P = Unconfined Airblast/Overpressure (psi): P = 82 (D/WAO.33)^-1.2 P = To convert (psi) to (dBL): (P/2.9 x 10^-9)log x 20 P = AB = Confined Airblast/Overpressure (dBL): AB = P (dBL) - 35 dBL (for quarry situation) (*max. limit in mining permit is: AB = I2-8 dBL) @T. Davis 6/24/94 GO TO PAGE 2 FOR EXPLOSIVES COLUMN CHECK 0.320752 160.8754 --2-- Explosives Column Check: (this is a very approximate method based upon numerous assumptions; specific densities may vary greatly depending upon the type and manufacturer of the explosive products used in the shot; must consider each explosive used; refer to Dupont Handbook for actual SPD, otherwise use the following:) Assumptions: If "straight" emulsion is used, use SPD (specific density) = 1.20 (per Ireco) If a "blend/slurry" is used, use SPD (specific density) = 1.25 If "straight" anfo is used, use SPD (specific density) 0.85 Ratio between explosives: Total pounds of Explos. W = 18320 Total pounds of Explos. #2 (use "0.1" here if only have one explos.)' _ Ratio between explosives = 183200 Average pounds of explosives used per hole (pounds)* = 411 Breakdown of average pounds of explosives per hole due to ratio: Explosive #1 = 410.9978 Explosive #2 = 0.002243 SPD = Specific densities for each explosive: SPD for Explos. #1 "' = 1.25 SPD for Explos. #2 (use "0.1" here if only have one explosive)* _ HD = Hale Diameter Used in Shot (inches): HD" = 5.5 LD = Loading Density (pounds per foot of column): LD = SPD(.34)(HD)"2 LD for Explos. #1 = 12.86 LD for Explos. #2 = 1.03 Explosive column height for each explosive (feet): Explos. #1 = 31.968712 Explos. #2 = 0.0021813 Total explos. column height = 31.97089 Stemming height used in shot (feet)* = 9 Total height of explosive column(s) and stemming in the hole = Total depth of hole denoted on the blasting report for the shot in question* = 40.97089 Analysis Completed By: Date: _ 6 J� @T. Davis 6/24194 ER] --- - RUG-24-198 11:49 IO: UMC ELK IN GQJRRRY TEL NO:4 Jv176-2941 T h599 Pot - . =2�e To: Tracy Davis Fax: 919-733-2876 From: Tim F[eodret Date: 0824198 Re: Requested Snot At Seismograph Pages: 6 including cover sheet Reports CC: OUgem , XFMRwkm ❑PleaaeCommand ❑PWMRe* OPbsewryel needed. If you have any questions posse salt TM llandAa at CIP i.. ........ ............ . �nll,de �gI pV,r RNG-24-'56 11:50 ID: UMC ELKIN QUARRYTEL N0:4 Ja176-2941 #599 P02 Lihill :><1t Mat0rr aIfompany L r� Blasting Report Gentry f hl n Report No. Date 'ype of Shot Exact Time — 1Q ���, ype of Material Shot Grid _FQ i� �.y� )stance ln�� (1.) Direction S Grid (To nearest occupied building neither owned or leased) '1 Seis. Location �Cym`C`-i Dist, to sets. O507 Grid CC '2 Selz Loudon, JJQ texr,ICA'+Dist. to Seis&2,SW-� Grid _ C=y, 3 Seis. Location Dist. to Seis. _�_ Grid � HOIMDeck No. Delay Period Depin Stemming Pounds tal Pe! HoletDock f 7 4 S i 5f 43 AD LVIV S S S� __ Maximum lumber of Holes y]— Type of Slemminy �� IDs. Per eter (inches) = Face Heig! f�p��� _ Da10Y iiamht'3d pacing /� I Sub Drilling urden i'/3, Number of Rows ached of Firing L Type of Circull: Series _. _ _Parallel --a vellal Series I� Type of Delays: Dowll�fne d Surface ./ ado Name FId S%Pn AD a LA a O d ii a /o a �_ �7 A p 4 q,9 va ro /s a. a /0 "191 -- Weather 3'Ear ❑ away ❑ Rain ❑ Snow :hack two) ❑ Hot 1316rm ❑ Cold find From ❑ NC1 NE ❑ East ❑ SE neck onsl ❑ S 0'9G✓ ❑West ❑ NW /(p a /3 3967 q t301 yj s /Q fd dr gmenlation ❑ Excel ❑ V. Good Gr Good L7 Fair ❑ Poor :kbreak 0 10 ft.❑ 20 a, ❑ 30 ft, ❑ e0 ft.n 50 it. or more �7 ? /D a i0 a Trade Name of Explosives —�Amounl-- y as / S )q (A Blifilld i8__ and v( o tit 4f4 3/ rPmf'llw Tx aX(F t,fe /' 410 Total I�__Ibs. Total Pounds /1 3aa Tons of Materials Produced n / -r ter Fai -_ /L__ Gal of Oilp Qj�� p > sb Oil Content 5 h n Grid Map Date Scale Distance narks: upon Admintstraff" Dept - ORIGINAL /� Plant Office File Supl. _ Blest ar Si ature I .(- �qI3� State Safety Rep- License orS,No.: ay5''Y1- fief/3 iM oFv.wa RUG-24-'98 11151 1D:VMC ELKIN OUHRRY TEL NO:. 1aI76-62941 14599 - .._.'gyp Now MUM MMMF!T•ici®� Icy M = -'H.17• ©Mf7i� c�14xa w WX_WKAM��1» MrM MM Total Pounds 1 q � _ f o Tens Materiel,Pnod Tons of d f ..._._. ._ T'Ta 1� w. _ _... 1 , . �Ir L 1 _.... ' r :1 f - .. .... _.._ . _j ....__L.... _._-..,-•------_- Typical Hole /Show Primer I Location andl - \Stemming l Top of Bunch 1 �J-%em MfSJ r -... L73 Length �w (Ft.) of Hof@ Floo�el34 yu 37 (Ft.l Drilling 1 TEL N0:* Ja176-2941 9599 gg 11:511Ri[GOER ACTIUE, V94i98 12153102 ws SAFEGUARD SEISMIC UNIT 2000DK ** sN:23I8 Tvesday. 8z04198 13:08135 Event: 026 Clients VULCAN lay Operation! I(% SSW Location:lPARON RP C 43 Distance to 63ast:j 2S00J OPeratort MITCH WAGONER Commentst $0 88 37 TrLeeer Levels: 0.02 Inset. 106 dD Record Time: 5 Secs Ransal Auto S ips VIBRATION & SOUND TIME HISTORY T1me Scale' 0.1 (secidiv) Data Scale (seismic)! 0.32 !inset) Data Scale (air)! 0.009 (P$i) L T U S �0 SUMMARY _L T V PPU (inset) ( 0.1L f 0..08� ( 0i08-j PD (0.001 in) 1,71 I , 11 1.02 PPA (s) 0.05 0.05 0.02 FREQ (hx) 14,2 13.1 12.8 RESULTANT PPW (in�sec) 0.18 PEAK AIR PRESSUREI <40 (121j (Psi) 6.00319 7vesday. U�04e98 13:08:35 GRAPHICAL RECORD TIME, 2, 0650 sec/in SOUND, 0.028 Psi1CTv L,I.V = 0.25 ips/div A (ZH) AON3nO3Ni 4+ttw# Yw+#ww+rww i INOd3H 3NWS0/W9Sn wr A/D CALIBRATED OK ** CALIBRATION API TIME= 1.1906 sec/in SOUNO= 0.026 OSi/div L,T,V . 1 IP5/div E SHAKETABLE CALIBRATED ON 07MAYOR FOR ANALYSIS B INFORMATION CONTACT. C1 SAULS ENGINEERS INCORPORATED C1 BIRMINGHAM. ALABAMA. USA 35222 Tt Tel: 205-B92-2465/ FAX 205-592-2477 M ..,.. 56d 665# b6Z-9�TT/ ':ON �31 (OOOOe 4LVO'O ZSO'0 (2)Ydd - 00900'0 Z9100'0 9OL00'C 00011 ZHZ 1edZLS00'C :JGPSZL) PUMDSN*Bd 9'S S'9 9-Z1 (ZH)DJA -4_! CYL-0 ) CCO poi �0�'(s/p I)Add A. 1 -i 1+w4#Yw slins3N OL :3W�1 ON003N GIL :(9D) GIRL Own . SO' :(ftl!.) SIN1 SI3S F:49VlZB e01Z1 :ANVdWGO NN;d01VN3dO N :AY-l30/S91 N :15vl0 01 133d �539-H1TW5 906)NOIJV001 NINA3 NV31nA:N3W01Sn9 DATA CARD 4 ttg3�hlf• •w 4•I Date ReCf�Q:F Orate Entefadi By. 9LO !1 1NTNr ` 90L2-1 S (1N3NnN1SN[ ' f Seib4 0 off nr: • % ,Aden NIN�3 JWf):QI Z:S:LS 66�-bz-9OU RLG-24-'98 11:52 IO:VNC ELKIN OLRRRY 'INSTRUMENT S NS50001-2251 EVENT 9 082 COPT 0 1 NOTES:' * CUSTOIER:VULCAN ELK3N QUARRY LOCATIONSRALPH .OREE_NBOOD-RENTAL FEET TO BLAST: N - - - ---- LWOELAY: N OPERATOR:RR COMPANY: T2251 M2251 :1T SETS CRIS (Ip5): .03 SOUND TRIG (OD): 115 RECORD TIME: 5 USBM/OSMRE REPORT T74�M FREQUENCY (Hz) ,w GRAPHICAL RECORD w*r**f *ff ****a* TIME, 1.0325 BBC/in SQ.UND! 0.028 psi/Div L,T,v = 0.25 iPs/Div 7 TEL NO:r /1176-2341 LOZ-709-907. X" /99VZ-LB9-9OZ :191 ZZZCE VSn 'VWVGYIV 4WVHVNIW919 (131.VNOd000NT S933NION3 SIOVS 10V000 NOI1VW803NI 2 SISAIVNV VOA L6030LE NO 031VS911VO 319v13AVHS 090 0 090'0 L91'0 (9)Vdd L1000 '0 98100'0 99100'0 (UI)Ud , zHt !s Oz9800'0'j9p0El) punoSA99d 6 04E9 0'V9 Z'9L (ZR)b Uj L ( Za'0. (9l_Oj ZSZ'0: (s/u:)Add A 1 l c".. •x*•x*w S11nS35 -A 1`EV: DI :EI-�`a(e-anv-ea Alp/9 d! 1 . A•1'I A!PI$Vd 9ZO'0 =ONn05 UI/099 908L'1 =3WI1 i**ir **irrr rxi*! HdvbO NO11V8QIlV0 *x NO 031V991'lv0 0/V f* JAMES B. HUNTJR. ;GOVERNOR WAYNE MCOE;VITT SECRETARY „ CHARLES H. GARDNER 4 �; P.G., P.E. DIRECTOR-:' + '­? AND STATE GEOLOGIST N NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES August 17, 1998 Mr. Phil Dotson Area Operations Manager Vulcan Materials Company P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 RE: Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin Pee -Dee River Basin Dear Mr. Dotson: T hank you far your letter dated August 10, 1998 in which you requested a technical amendment to my August 3, 1998 letter. My letter pertained to the recent flyrock incident at the above site. Your request to amend my August 3" fetter to allow your company flexibility to enlist the assistance of any qualified blasting personnel, regardless of company affiliation, is hereby approved. Therefore, item No. 3 of my previous letter shall be amended as follows: "Blast design metrics for each subsequent sinking shot shall be reviewed by a qualified blasting professional prior to blasting to ensure adequate design parameters have been met with regard to safety and the elimination of flyrock potential." Again, please note that the above item will be considered part of the blasting conditions of Mining Permit No. 86-03. Please attach this letter, as well as my August 3" letter, to your company's mining permit /for future reference. As a reminder, this office is still awaiting the investigation report, including blast records and seismograph readings, for the high air blast 7 incident (130 dbl) that occurred at this site on August 4, 1998. LAND QUALITY SECTION (91 9) 733-4574 FAX (91 9) 733-2876 GEOLOGICAL SURVEY SECTION (919) 733-2423 FAX (919) 733-0900 P.O. Box 27687, RAL.EIGH, NORTH CAROLINA 2761 1-7687 TELEPHONE (919) 733-3833 FAX 19191 71 's-8801 AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50 o RECYCLED/10 o POST -CONSUMER PAPER Page 2 This office appreciates your company's cooperation in this matter. If you should have any further questions, please contact Mr. Tracy Davis at (919) 733- 4574. Very truly yours, Charles H. Gardner, P.G., P.E. CHG/td cc: gMt:.TFacy:Cla.yis;�Pr_E.i Mr. Matthew Gantt, P.E. (w/copy of VMC's 8110/98 letter) ;, ----- �;� ��-- p'�—� 1 -- �b¢."" � 1- - - � t: i I? r( I Ir . ,.� r Ih� 1 i i f �NKIC.IDEN . n4_r. JAMES 9. HUNTJR. ;,mayy „GOVERNOR ,•,_i WAYNE MCDEVITT ' SECRETARY - -- CHARLES H. GARDNER gi•_i RG., P.E. DIRECTOR ; AND STATE GEOLOGIST • 1 NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATUIRAL REsoUROES DIVISION OF LAND RESOURCES August 17, 1998 Mr. Phil Dotson Area Operations Manager Vulcan Materials Company P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 RE: Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin PPP. -Dee River Basin Dear Mr. Dotson: Thank you for your letter dated August 10, 1998 in which you requested a technical amendment to my August 3, 1998 letter. My letter pertained to the recent flyrock incident at the above site. Your request to amend my August 3" letter to allow your company flexibility to enlist the assistance of any qualified blasting personnel, regardless of company affiliation, is hereby approved. Therefore, Item No. 3 of my previous letter shall be amended as follows: "Blast design metrics for each subsequent sinking shot shall be reviewed by a qualified blasting r F., g nrnfessinnal nrinr rr, ����+;�w to i I W I w I U0LII IIj L ensure adequate design parameters have been met with regard to safety and the elimination of flyrock potential." Again, please note that the above item will be considered part of the blasting conditions of Mining Permit No. 86-03. Please attach this letter, as well as my August 3" letter, to your company's mining permit for future reference. As a reminder, this office is still awaiting the investigation report, including blast records and seismograph readings, for the high air blast incident (130 dbi) that occurred at this site on August 4, 1998. LAND QUALITY SECTION (919) 733-4574 FAX (9191 733-2876 GEOLOGICAL SURVEY SECTION (919) 733.2423 FAX (9191 733-0900 711 P.O. Box 27687, RALEICH, NORTH CAROLINA 2761 1.7687 TELEPHONE (919) 733-3833 FAX (9191 715.8801 AN EQUAL OPPORTUNITY %AFFIRMATIVE ACTION EMPLOYER • 50% RECYCLED/I O'er POST -CONSUMER PAPER Page 2 This office appreciates your company's cooperation in this matter. If you should have any further questions, please contact Mr. Tracy Davis at (919) 733- 4574. Very truly yours, Charles H. Gardner, P.G., P.E. CHGJtd cc:. Mr. Tracy Davis, P.E. Mr, Matthew Gantt, P.E. (w/copy of VMC's 8/10/98 letter) UuIcan Materials Company August 10, 1998 Mr. Charles H. Gardner, P.G., P.E. Director - Division of Land Resources NC-DENR P.O. Box 27687 Raleigh, NC 27611 RE: Elkin Quarry Mining Permit No. 86-03 Dear Mr. Gardner: s 131 998 By Thank you for your letter of August 3, 1998 regarding the above referenced operation. It is my understanding that recommendations 1-3 are being incorporated as operating conditions of the referenced mining permit. While I am in agreement with the essence of your letter, I do have reservations regarding the exact wording of recommendation No. 3. We would prefer our mining permit not to be conditioned upon the exclusive use of one specific consultant. Currently, we utilize Dyne Nobel Piedmont however, we would prefer to have the flexibility to enlist the assistance of any qualified blasting personnel regardless of company affiliation. Therefore, I respectfully request that a technical amendment be made to Condition No. 3 as follows: "Blast design metrics for each subsequent sinking shot shall be reviewed by a qualified blasting professional prior to blasting to ensure adequate design parameters have been met with regard to safety and the elimination of flyrock potential." Hopefully, I have provided you with sufficient explanation to support my request. However, should you need additional information please do not hesitate to contact me direct at 336-744- 2905. I trust my request will meet with your approval. ly y s, Phil Dotso Area Operations Manger PD/TC/tc Attachment (1) Cc: Tracy Davis, P.E. Tim Hendrix Ronnie Walker Truman Chidsey MIDEAST DIVISION l P.O. BOX 4239 • WINSTON-SALEM, NORTH CAROLINA 271154239 • TELEPHONE 919 76746M �riw c (i n o gal f l Vulcan / V/� Nil C Materials Company August 10, 1998 v I J r DN Mr. Charles H. Gardner, P.G., P.E. Director - Division of Land Resources NC-DENRLA1jG!4'1Y998 P.O. Box 27687Raleigh, NC 2761I RE: Elkin Quarry Mining Permit No. 86-03 Dear Mr. Gardner: Thank you for your letter of August 3, 1998 regarding the above referenced operation. It is my understanding that recommendations 1-3 are being incorporated as operating conditions of the referenced mining permit. While I am in agreement with the essence of your letter, I do have reservations regarding the exact wording of recommendation No. 3. We would prefer our mining permit not to be conditioned upon the exclusive use of one specific consultant. Currently, we utilize Dyno Nobel Piedmont however, we would prefer to have the flexibility to enlist the assistance of any qualified blasting personnel regardless of company affiliation. Therefore, I respectfully request that a technical amendment be made to Condition No. 3 as follows: 'Blast design metrics for each subsequent sinking shot shall be reviewed by a qualified blasting_ professional prior to blasting to ensure adequate design parameters have been met with regard to safety and the elimination of flyrock potential." Hopefully, I have provided you with sufficient explanation to support my request. However, should you need additional information please do not hesitate to contact me direct at 336-744- 2905. 1 trust my request will meet with your approval. lY Y rs, Phil Dotso Area Operations Manger PD/TChc Attachment (1) Cc: Tracy Davis, P.E. Tim Hendrix Ronnie Walker Truman Chidsey MIDEAST DIVISION / P.O. BOX 4239 • WINSTON-SALEM, NORTH CAROLINA 2]1154239 • TELEPHONE 919 767-4600 JAMEB B. HUNT JR. t=1 GOVERNOR ..Cuu,I VVAVNE MCDEVOT SECRETARY CRARLES X. GARONER �- PG., P.E. DIRECTOR ]:'�".� AND STATE GEOLOGIST NORTH CAROLINA DEPARTMENT OF ENVIRONMENT ANo NATURAL RESOURCES DIVISION OF LAND RESOURCES August 3, 1998 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Phil Dotson Area Operations Manager Vulcan Materials Company P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 RE: Flyrock Incident of July 20, 1998 Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin Pee -Dee River Basin Dear Mr- Dotson: This letter is in response to your July 27, 1998 letter and the corresponding flyrock investigation report prepared by your consultant, Mr. Stuart Brashear of Dyno Nobel Piedmont, dated July 20, 1998 pertaining to the above referenced flyrock incident. The report indicated ! several likely causes of the flyrock and important corrective actions that should be incorporated in any future blasting activities at this site. After reviewing Mr. Brashear's report, your company is hereby approved to resume blasting activities at the above referenced site. Please be aware that this approval is contingent upon your company inCDrnnraring The recommends*ion_ it ...lined in the July 20, 1998 report into your blasting procedures at this mine site. These recommendations are as follows: 1) Additional stemming shall be held on the opening row of holes to provide additional stemming confinement on all ramp shots in this area until blasting for this ramp has been completed; LAN D OU ALIT EECTI ON E 191 733 4 S74 FA X(A 1 91 73 3-2 E 76 G EDEOmCA L SURVEY SECT ON 1919)733-2423 FAX IS191733-0900 P.O. BOX 27687, RA"ICR. MOnm CIPOLIN A 27911.7637 T .3933 FAX(9191713-8D01 AN EQUAL OPPORTUNITY /Arr MATWE ACTION EMFLSIEp 90,.RECYCLED/IO, POST EOf EJMER PAPER R CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Dotson Page 2 2) A safety meeting shall be conducted with all members of the blast crew prior to the next sinking shot to review the findings of the July 20, 1998 flyrock investigation report. The need for precise loading and stemming of each hole shall be impressed upon each member of the crew, with responsibility for additional checks of hole loading being assigned, as needed, to ensure precise collaring of each hole in the blast; and 3) Blast design metrics for each subsequent sinking shot shall be reviewed by the technical service department of Dyno Nobel Piedmont prior to blasting to ensure adequate design parameters have been met with regard to safety and the elimination of flyrock potential. Again, please note that the above recommendations will be considered part of the blasting conditions of Mining Permit No. 86-03. Please attach this letter and a copy of the above mentioned report to your company's mining permit for future reference. If you do not agree that Mr. Brashear's July 20, 1998 report constitutes a request, on behalf of your company, to modify your company's mining permit, you have the right to request a hearing pursuant to G.S. 74-57 to discuss this matter further. This office appreciates your company's prompt reporting and investigation of this flyrock incident. We are confident that your company will take all the necessary steps needed at this facility to prevent similar incidents from occurring in the future. Very truly yours, Charles H. Gardner, P.G., P.E. CHGItd cc: Mr. James Smack Mr. Tracy Davis, P.E. Mr. Matthew Gantt, P.E. (wlcopy of investigation report) Dvnn Nobel Piedmont Memo To: Mr. Tracy Davis NCDEHNR Raleigh, North Carolina CC: T. Hendrix, VMC P. Dotson, VMC B. Graham, VMC J. Smack, VMC P. Thomas, DNP A Miirknn r)NP M. Corona, NBI From: Stuart Brashear Date: July 27, 1998 ELK{N4.SAM CAWORK MIPRO Page; 1 of 3 u ll v Dyno Nobel Investigation Into Flyrock Incident, VMC - Elkin Quarry, July 20, 1998. Mr. Davis, 4n July 20, 1998, during the detonation of a ramp shot at the Elkin quarry, a rock of approximately four inch diameter was ejected from the blast security zone and landed on adjacent property. There were no injuries or any property damage reported. The following report is submitted for your review. BLAST M ETRICS The hlast in question contained 90 holes ranging in depth from 10 feet to 18 feet. This blast was the first of a series of shots to create a ramp to a new bench. The front rows of the shot contained 10 foot holes which progressed to the rear of the shot to a final depth of 18 feet. Drill logs were consulted by the blaster to aid in determining proper stemming height. Nominal stemming design called for 8 feet of stemming in holes ranging from 14 to 18 feet in depth, and 7 feet for holes of 10 to 12 feet. This design follows the standard Dyno Nobel blast design formula for short holes, which recommends approximately 70 percent of the hole depth to be stemmed. INITIATION The shot was pulled from the center row to provide a means of developing relief for the remainder of the blast, following established industry blasting practices for a sinking shot. ANALYSIS Analysis of the blast indicated a well controlled shot with the exception of two holes that vented through the stemming region. The holes in question were either 16 or 18 feet deep. Significant gas venting was observed with little rock ejection noted. The transient rock was only noted due to the presence of VMC personnel providing blast area security. The remaining holes of the blast showed good containment of the collar and no additional stemming ejection. Observations of the blast indicated that the first hole to loose confinement appeared to crater around the hole collar. This cratering apparently caused a loss of confinement to the next hole by displacing the top of the second hole collar region. When the second hole detonated, the lack of confinement resulted in the rifling of that hole. Observed gas from this second hole vented rapidly into the air, but did not show evidence of cratering as was evident in the first hole. The most probable cause of this loss of confinement on the second hole to vent was the result of the cratering that occurred from the first hole to vent. This venting caused loss of stellll lllllg eOrlllneirlent or, an, adjacent hole. Since the first hole to vent provided little In the way of fragmentation, the path of least resistance for the second hole was again through the disturbed stemming region, resulting in the rifling of the hole and subsequent throw of the rock observed leaving the blast site. The fact that two adjacent holes were observed to vent is not surprising. Hi -speed imagery of blast events has documented that when one hole looses confinement and vents into the air, the ability of the explosive energy partitioned to that hole is mainly lost. As a result, adjoining holes are now being asked to impact a larger quantity of intact rock than was designed. The result is even more confinement, which typically results in venting through the collar region. As the holes that are in question were in the opening row of the blast, and the remainder of the shot exhibited prover confinement, it is annarent that the hasic metrics of the blast design were more than adequate to provide the required confinement for this shot design. The cratering observed from the first hole to vent can again be attributed to several causes. A weak zone in the rock mass, broken material from redrilling and natural faults in the rock mass can all contribute to loss of stemming confinement in the collar region. A drill log was used by the blaster to compensate for rock characteristics, but apparently the driller was not able to detect any problem in the rock or may not have even drilled into the zone of rock that contributed to the rock throw. ELKIN4.5AM C AW OR K1AMI PRO Page: 2 of 3 REMEDIATION MEASURES Ramping to new levels represents confined conditions where the increasingly deeper holes in the shot provides even more confinement. This confinement places additional pressure on stemming materials, making the amount of stemming and the existing condition of the rock critical. Given the nature of shooting such shots, and the necessity of creating a zone of relief for the remainder of the blast to move toward, the opening row of holes typically can present the most critical part of the blast. To insure that subsequent blasts in this area do not result in undesired rock throw, the following steps will be taken: • Additional stemming will be held on the opening row of holes to provide additional stemming confinement on all ramp shots in this area until blasting for this ramp has been completed • A safety meeting will be held with all members of the blast crew prior to the next sinking shot to review the findings of this investigation. The need for precise loading and Stemmirlg —each h^le -... be in:pre�sed :.'pon each member - the crew, ..';th responsibility for additional checks of hole loading being assigned as needed to insure precise collaring of each hole in the blast These steps should insure that the remaining blasts required to construct this ramp pose no threat to the properties and area outside the blast security zone. Blast design metrics for each subsequent sinking shot will be reviewed by the technical service department of Dyno Nobel Piedmont prior to blasting to insure adequate design parameters have been met with regard to safety and the elimination of flyrock potential. Should you have any questions or require additional information regarding the contents of this report, please do not hesitate to contact me at once. Respectfully submit d, Stuart Brashear, ISEE Technical Service Manager r)-- XT-t—I Dio.am.�n+ 1 J'llu l\VLl {,,.1 J 1{rU 111 VlIL ELKIN4.SAM CAWORKVWIPRO Page: 3 of 3 r Uulian Materials Company FFfni 1p(T z -_-, --� r JUL 3 01998 . �! luly 27. I QQR Mr. "Tracy Davis, PE State Mining Specialist NC-DENR Land Quality Section P.O. Box 27687 Raleigh, NC 27611 RE: Elkin Quarry Dear Mr. Davis: On July 20`I' Mr. Tim Hendrix, Superintendent of our Elkin Quarry, notified you by telephone of an incident that occurred earlier that same day. You requested that Vulcan Materials Company (Vulcan) submit a report outlining the probable cause of the July 20`h event and means to prevent similar occurrences in the future. In response to your request, I offer the attached report for your favorable consideration. Vulcan will, effective immediately, incorporate these findings in our blasting program for this facility. Should you have any questions please do not hesitate to contact me direct at 336-744-2905. 1 trust our consultant's report will meet with your approval. I look forward to hearing from you in the very near future. erely ur , Phil Dotson Area Operations Manger PD/TC/tc Attar_.hment (1) Cc: Tim Hendrix Ronnie Walker Truman Chidsey MIDEAST DIVISION / P.O. BOX 4239 - WINSTON-SALEM, NORTH CAROLINA 27115-4239 - TELEPHONE 919 767-4600 . , JUL-27-1998 15:04 FROM DYNO NOBEL - CHLT, NC TO 13367442018 P.02 r"Yr I'm Ut31 r,1 UiiiVflL : IrI ern, o To. 'Mr. Tracy Davis NCDEHNR Raleigh, North Carolina CC: :T. Hendrix, VMC P. Dotson, VMC B. Graham, vMc J. Smack, VMC .P. Thomas, DNP A. Hudson, DNP From: Stuart Brashear Date: July 20, 1999 ELKIN4.8AM CiWORKIWWPRO Page: 1 of 3 —M%P-,W ffRA �U �� U 11 Dyno Nobel Investigation Into Flyrock Incident, VIVIC - Elkin Quarry, July 20, 1998. Mr. Davis, On July 20, 1998, during the detonation of a ramp shot at the Elldn quarry, a rock of approximately four inch diameter was ejected from the blast security zone and landed on adjacent property. There were no injuries or any property damage reported. The following report is submitted for your review. BLAST METRICS The blast in question contained 90 holes ranging in depth from 10 feet to 18 feet. This blast -was the first of a series of shots to create a ramp to a new bench. ' The front rows of the shot contained 10 foot holes which progressed to the rear of the shot to a final depth of 18 feet. Drill logs were consulted by the blaster to aid in determining proper stemming height. 'Nominal stemming design called for 8 feet of stemming in holes ranging from 14 to 18 feet in depth, and 7 feet for holes of 10 to 12 feet. This design follows the standard Dyno Nobel blast design formula for short holes, which recommends approximately 70 percent of the hole depth to be stemmed. JUL-2?-1990 15:04 FROM DYNO NOBEL - CWLT, NC TO 13367442010 P.03 ELION4.SAM C.MORKUMAPRO Page, 2 of 3 INrMl ION The shot was pulled from the center row to provide a means of developing relieffor the remainder of the blast, fallowing established industry blasting practices for a sinking shot. ANALYSIS cAnalysis of the-blast-indicated'a'well-contrplled;shot with the exception oftwo holes that entedAthrough the_itielnming region. { The holes in question were either 16 or 18 feet deep. Signi6m nt_gas venting was observed with little rock ejection noted. The transienurock w cirily_noted,due to the_pre end f_VMC.ne osr tvlel , vi[jtno7 blast ai-e- sec,�ri+v7 The _ .T -_- _- o- remaining holes of the blast showed good containment of the collar and no additional stemming ejection. Observations of the blast indicated that the first hole to loose confinement appeared to crater around the hole collar. This cratering apparently caused a loss of confinement to the next hole by displacing the top of the second hole collar region. When the second hole detonated, the lack of confinement resulted in the rifling of that hole. Observed gas from this second hole vented rapidly into the air, but did not Shaw evidence. of cn-aterinnn ass was evident in the first hole. The ost.pipbaable causC6fthis,los9-6f co_ nfnement on the secon_d'l ole.to�,v_cntjwas theme result of the.crat g thatroccurred'Gom the,first_hale:io �n This venting,causbd'loss of fisiemmirig confinement'on`an-adjacent'hole Since the first hole to vent provided little in the way of fragmentation, the path of least resistance for the second hole was again through the disturbed stemming region, result' in.the,riflin� of the hril nri c„h „iPn�"+t�` f.tt� -rock,observed-leaving the blast site The fact that two adjacent holes were observed to vent is not surprising. Hi -speed imagery of blast events has documented that when one hole looses confinement and vents into the air, the ability of the explosive energy partitioned to that hole is mainly lost. As a result, adjoining holes are now being asked to impact a larger quantity of intact rock than was designed. The result is even more confinerent, which typically results in venting through the collar- region. As the holes that are in question were. in the open;, row of the h1ast, and the remainder of the shot exhibited proper confinement, it is apparent that the basic metrics of the blast design were more than adequate to provide the 'required confinement for ibis shot design. The cratering observed from the first hole to vent can again be attributed to several causes. A weak zone in the rock mass, broken material from redrilling and natural faults in the rock mass can all contribute to loss of stemming confinement in the collar region. A drill log was used by the blaster to compensate for rock chararteristir_,Q but smns,rantly the �riller ;vac not able to detect any problem in the rock or may not have even drilled into the zone of rock that contributed to the rock throw. JUL-27-1990 15:05 FROM DYNO NOBEL - CHLT, NC TO 13367442010 P.04 tREMkI IiAT-10?UWEAS TRFSI Ramping to new levels represents confined conditions where the increasingly deeper holes in the shot provides even more confinement. This confinement places additional pressure ion stemming materials, making the amount of stemming and the existing condition of the rook critical. Given the nature of shooting such shots, awnd the uncc .aaity iUf creating a wine of relief for the remainder of the blast to move toward, the opening row of holes typically can present the most critical part of the blast. 'ZTo:insure�that"subsequent_blasts_in this area -do not_result;tn,uodesired rock'thow;:the following steps'.wilftic aken, CQ Additional stemming will be held on the opening row of holes to provide additional stemming confinement on all ramp shots in this area until blasting for this ramp has been completed A safety meeting will be held with all members of the blast crew prior to the next sinking shot to review the findings of this investigation. The need for precise loading and stemunlitlg of each hole will be impressed upon each member of the crew, with responsibility for additional checks of hole loading being assigned as needed to insure precise collaring of each hole in the blast These steps should insure that the remaining blasts required to constrict this ramp pose no threat to the properties and area outside the blast security zone. $131 ,stades' metrics:for h ubsequent;sinking;shot will be:reviewed'by=the teeltnical'service departr66fit ofDyno 'N_O ief:liriedmont prior" fit ;no to :.,g.Trp 4.�a.,,,:at� Ae f- h-- - uee `m With .-mot ..•......y, v uv�i `p LI era dYG R et in 'egard'#o�safety_�nd the-& ination offlyrock.p a tial Should you have any questions or require additional information regarding the contents of this report; nlexce do not hesitate to contact ,*ne- ut o WC. - ------ - Respectfify submitted, Stuart Brashear, ISEE Technical Service Manager Dyno Nobel Piedmont EUQP44.3AM CAWORk1AMIPRO Pale: 3 of S TOTAL P.04 MEMO DATE: `g TO: SUBJECT: Yw'� C-wuar x:� W U tom-- e- 70r 11 ,� a. From: 4 K North Carolina Department of Environment, `µ►` Health, and Natural Resources �� --- JUL-31-790 15:59 ID:VMC ELKIN QUARRY TEL NO:4 )1176-2941 t$577 P61 ........ • Yv'' ,v • aye✓ Ta: Tracy Davis Fax: 919-733-2876 From: Tracy Holloway Date: 0713IY98 Re: Blasting @ Seismograph Report Pages: 4 Including cover sheet CC: X urgent ❑ For Review Cl PIa Comggm ❑ Please Reply ❑ PI•Ke PAWL you ragaa•!a6 Myou need anyasing NeepkmmrmYTracyorR , p 1.i�-.-,�... .. �Yil a„_ JUL-31-'98 16:00 ID:VMC ELKIN UURRRY TEL NO:+ )mI76-2941 4577 P02 VateTa�ompany Blasting Report errs fii Report No. j Data Type OfShot Exact rime • V Type of Material 6r6n.�j( Shot �-" � Dela¢e SSA (Ft.) Direction &I E Grid - (To real occupied building neither owned or lamed) et Sete. Loaalloni_ Diet. to Sena. ` CO Grid - a2 Selo. Locelbni Diet. to Ssoe �SOI Grid CC- 4te . 03 $ds. Location Diet. to Sals. Grid Hole/Deck No. Delay y Period Depth Stemming Total Pounds Per Hole/Dock / 7 3 37 3 0 S 33S 10 4 0 7 in Mimum Number d Holm g0 Type el Stemming �Z too Per Diameter (inchi Fade Height Del Spacing �ir Sub Ddlling y r ie /0 r _l ��100 Burden {�_�-�-�J�, Number of Fli Q Method of RArtg-ZrIAe— Type of Circuit: Sodas Parallel Parallel Series Type of D lays: Downline �� Surface Trade Name ° ,% 5 i0 O -74 Al �o O 37 i J / 1O 'pit( / � Weather [!T `la r Cloudy ❑ Rain O Snow -••--- •_-. t-o heir a Warm a Coltl ❑ N NE ❑ Easl ElSE Wind From [ ,.I, � (check one) ❑ S LSSW ❑ West ❑ NW 1 /(e /7 /- /9 42 D pv t 5 Fragmentation ❑ Excel ❑ V. Good O Goad ❑ Fair ❑ Poor Backbreak Er10 it. ❑ 20 a. 0 30 ft. O 40 a. ❑ 50 a. or more tlb) 7 37 a3 to I Trade Name of Expbelvea _ Amount o% l 8pO ov / _ r a a a5 r 3 /0116 7 Total 5 Ila. Total Pounds �q,�a11 Powder F for _t Gal of Go % Oil Content Bench Grid Map Date - Scale Distance Tons of Materials Produced 7 7 Remerke. T Zak en O[rerga. far hods wikv �r Stabrir�iir vi T— ]istdbutici Adminiatrai Dept. — ORIGINAL Plain Office File Supt. Slate Safety Rep. C Blaster Sr atura Az• _ License orW No.: t94S - 41- "l n,c-=o. a ve. m JU1_-31-'96 16:01 ID:VMC ELKIN QUARRY TEL NO:t )i176-2941 4577 P03 SWWW �BLXST_DATA _CAM1 uo. >ua_ W a.irl rttr1A1L6QC Mir Baca Bacaivads C IYpITYF�nv� env• Vaty +��sta... By: /• . Client /1 -VUV eB E- ssis, owratorl n. wnd,°"``�ciBpsr 7wvsL otl rrsasOuaar Aerial / 2317 Micz ns sasialJ %3 i X Sais. Barial h. 7,31 Blast Fuse rro��®�oo "'-"- JUL-31-'98 16:01 ID:VMC ELKIN QURRRY TEL NO:r J41R6-2941 M377 PO4 menday. 7/20/90 10/46102 Events $a °atf &hj Clients VULCAN operations 106 6SU Locations 00.27 ROSE PAVING Distance to B1 asU t330J Operator$ MITCH WAGONER Commentsl SO LL 32 Trlsser Levels$ 0.84 in/sec. 112 db Record Time 5 sees Ransu Auto ips r VIBRATION & SOUND TIME HISTORY Time Scala: 0.1 (sec/div) Data Scale (seisms U$ 0.32 (in/sec) Data Scale (air): 0.009 (psi) J SUMMARY PPU (in/sac) �@.i27) .es�(e.is� PD (01001 in) 0.92 1.11 8.86 PPA (1) 0116 0.07 0.10 ...�� .,:50.0 23.8 31.2 RESULTANT PPV: (in/sec) 0.17 PERK AIR PRESSUREI (db) [123] a (psi) 0.00493 Monday. 7/20/98 10:46:52 DYNAMIC CALIBRATION CHECK " L T U S —\ `\ 1 1 k UNITED STATES POSTAL SERVICE II First -Class Mal Postage & Fees Paid VSPS _ Pemtil No.6-10 • Print your name, address, and ZIP Code in this box a LAND DUALITY SECTION P. O. BOX RALEIGH, MC 27611.76411:�fz AUG o 71998 a SENDER: �l�,c�� •Conoses New 1 at vu.l.f1p WIYtenN 9 'cn a0 I aV sh 10 receive the w •Compete dams a, all, aaa all. following services(Icr an� •Pdm sam amnia who amnim an ma mvame Of the term 10 that we n.n mtwnm• adta fee): •MeclttaNyou. u bum lotto hom altM meilpan, NOnIM Daditlapan dceeM 1.❑ Addressee's Address 0 'Whit-Ren,mA 1R uubO"m the mail xe ENow Na anitla numeav ' $P ea P Y. Restricted Delivery r •de Rpnewly well newill show to wlpm me elide wa delivered •rk Ito due c ap�aemd. Catsu& pasanaster for Lea. - u3. Article Addressed to:�l, Ir ilaa.. Arficllee NutMsr llld E 4/ , db. Service Type ❑ Registered a<Iofied c 0 Express Mae p Inatred _ AA/o'f l�F�(-J �' eCm Rgm for Mertltendw [I GOD S. Received ey.,(Pdnl arts) B. Add 's AAdreas(ONy a requested lee is paid) B. SignaNr (A7297014 re a ge F m x — PS Farm 3811, December 1194 tcesss.sne.ons Domestic Return Receipt AAA 17 �- NORTH CAROLINA DEPARTMENT OF = NGDENK - - Y,A _ � JAMES B. HUNTJR. Jv -GOTeRrvDR b wAYNEmeoEVITTI SECERAFIT i 1.li. fib; c 1lArtLes H. AND STATE GEOLOGIST,, . »x -, C •rXiillyl�lti ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES July 24, 1998 NOTICE OF VIOLATION OF MINING PERMIT Mr. James W. Smack, President Vulcan Materials Company Mideast Division P.O. Box 4239 Winston-Salem, North Carolina 27115 RE: Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin Pee -Dee River Basin Dear Mr. Smack: This is to inform you of a violation of Mining Permit No. 86-03 issued to your company to operate the Elkin Quarry in Surry County. On July 20, 1998, Mr. Tim Hendrix of your company advised Mr: Tracy Davis of this office of a flyrock incident that occurred at the above referenced quarry on July 20'". Mr. Hendrix stated that only one "fist -sized" rock left the permitted and guarded area and landed on the adjacent asphalt plant property. No injuries or damage resulted from the rock being thrown from the quarry. As rock has left the permitted and guarded area at this site, this incident constitutes a violation of Operating Condition No. S.C. of Mining Permit No. 86-03 which governs the control of flyrock at this mine. The following actions must be taken to correct these violation,\ A. Immediately cease further use of explosives at the Elkin Quarry. LAND QUALITY SECTION 131 111 733.e576 FAX L91 el 74m2e76 Ce040GICA4tURVEYSEC7ION1919I733.2423 FAX19191733.0900 P.O. Box 27687. RALEIGH, NORTMCAROTIIA27611-9889 T 91]33.3833 FAX,919:T5.69O1 AN EQUAL OPPORTUNITY (AFFIRMATIVE ACTION EMPLOYER N50% RECYCLED110% POST -CONSUMER PAPER CERTIFIED MAIL Mr. Smack July 24, 1998 Page 2 B. Submit in duplicate to the Department, within 10 days following your receipt of this Notice, a complete blast investigation report prepared by a third party consultant. Said report shall contain, but not be limited to, the following: a) blast reports/records (including seismograph recordings), b) a scaled map showing the exact location of the July 20' blast and the distances to and locations of the flyrock and offsite damage (if any), c) actions to be taken by your corporation to repair any damages, d) probable cause(s) of the flyrock, e) description of the blasting procedures employed at the time of the incident, and f) what changes will be made in procedures to ensure that flyrock will not exit the permitted and guarded area in the future. You will be notified if the above investigative report meets with the approval of the Department. Should the report not meet with Department approval, you will be notified of the deficiencies. Failure to take the corrective actions specified above will result in the assessment of a civil penalty against your company. If a civil penalty is assessed, the amount may be up to five hundred dollars (5500.00) for each day of violation, beginning with the date of your receipt of this Notice of Violation (N.C.G.S. 74- 64). Other enforcement actions may include seeking an injunction or revoking your mining permit. Please do not hesitate to contact Mr. Davis at (919) 733-4574 or me at (919) 733-3833 regarding any questions you might have about this matter. Very truly yours, Charles Gardner, P.G., P.E. CHG/td cc: ,M`-T.(acy Davisss Mr. Matthew Gantt, P.E. Mr. Tim Hendrix, VMC 31 �Ar i-R1 NCDENR JAMEEB.HUNTJR. GOVERNOR V. ^ WI MCOEVITT SECRETARY i :..` BI .Xn .. . ,CNARLE6 N. GARONER I.. .. P.G.. P.R. DIRK OR4An AND STATE GEOLOGIST 6 NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES July 24, 1998 CERTIFIED MAIL RETURN RECEIPT REQUESTED NOTICE OF VIOLATION OF MINING PERMIT Mr. James W. Smack, President Vulcan Materials Company Mideast Division P.O. Box 4239 Winston-Salem, North Carolina 27115 RE: Elkin Quarry Mining Permit No. 86-03 Surry County Yadkin Pee -Dee River Basin Dear Mr. Smack: This is to inform you of a violation of Mining Permit No. 86-03 issued to your company to operate the Elkin Quarry in Surry County. On July 20, 1998, Mr. Tim Hendrix of your company advised Mr. Tracy Davis of this office of a flyrock incident that occurred at the above referenced quarry on July 20'". Mr. Hendrix stated that only one "fist -sized" rock left the permitted and guarded area and landed on the adjacent asphalt plant property. No injuries or damage resulted from the rock being thrown from the quarry. As rock has left the permitted and guarded area at this site, this incident constitutes a violation of Operating Condition No. B.C. of Mining Permit No. 86-03 which governs the control of flyrock at this mine. The following actions must be taken to correct these violation A. Immediately cease further use of explosives at the Elkin Quarry. noOwLITY SECTION(919) 7JJ-4574 FAX DID)T33.2aTe GEOLOGICAL SURVEY 9ECTION(9191133.2423 FAX 1919)733.0900 P.O. BOX 27687RALEIGH. NORTH CA"ouNA 27611.7687 T _ -3833 FAX 1919, 71S-Raw AN EQUAL OpMORTuNITY, AFFIRMATIVE Ad 911LOTER�H50% REm CLED,I 0% aOSnm.usOR ER euER CERTIFIED MAIL Mr. Smack July 24, 1998 o ,,... n I ouc B. Submit in duplicate to the Department, within 10 days following your receipt of this Notice, a complete blast investigation report prepared by a third party consultant. Said report shall contain, but not be limited to, the following: a) blast reports/records (including seismograph recordings), b) a scaled map showing the exact location of the July 20' blast and the distances to and locations of the flyrock and offsite damage (if any), cj actions to be taken by your corporation to repair any damages, d) probable cause(s) of the flyrock, e) description of the blasting procedures employed at the time of the incident, and f) what changes will be made in procedures to ensure that flyrock will not exit the permitted and guarded area in the future. You will be notified if the above investigative report meets with the approval of the Department.. Should the report not meet with Department approval, you will be notified of the deficiencies. Failure to take the corrective actions specified above will result in the asceccmant of a Siva penalty a nst " _. __ If a civil penalty is assessed, the amount may be up to five hundred dollars ($500.00) for each day of violation, beginning with the date of your receipt of this Notice of Violation (N.C.G.S. 74- 64). Other enforcement actions may include seeking an injunction or revoking your mining permit. Please do not hesitate to contact Mr. Davis at (919) 733-4574 or me at (919) 733-3833 regarding any questions you might have about this matter. Very truly yours, �� /,J- 3J�4f Charles Gardner, P.G., P.E. CHG/td cc: Mr. Tracy Davis, P.E. Mr. Matthew Gantt, P.E. Mr. Tim Hendrix, VMC 1� I thl �qL I I I 1 i Permit No.: 86-03 Mine Name: ELKIN QUARRY County: SURRY Owner: VULCAN MATERIALS CO Region: 4.00 Contact Person: J R BRYSON Street Address: P O BOX 4239 City: WINSTON SALEM State: NC Zip 5: 27115 Zip Ext.: Phone: 336-767-4600 Status: A Appl. Rec'd Date: 6/29/72 Hearing Date: Issue Date: 9/27172 Expiration Date: 11 /12/2001 Total Acres Permitted: 238,52 Date Denied: Permit Revised Date: 12/6196 Release Date: Next Insp: Last Insp: 5/16/95 Last NOD: Last NOV No. Insp./Yr.: 1.00 No. Insp. to Date: 1.00 Commodity Code: CS Ac Dist Tailings -Annual: 0.00 Ac Dist Stockpile -Annual: 0.00 Ac Dist Waste pile -An nual: 0.00 Ac Dist Processing -Annual: 0.00 Ac Dist Active Mine-Annua: 0.00 Ac Dist Total -Annual: 0.00 Ac Recl Tailings -Annual: 0.00 Ac Recl Stockpile -Annual: 0.00 Ac Recl Wastepile-Annual: 0.00 Ac Recl Processing -Annual: 0.00 Ac Recl Active Mine-Annua: 0.00 Ac Recl Total -Annual: 0.00 Ac Dist Tailings-Cumm: 1.00 Ac Dist Stockpile-Cumm: 17.00 Ac Dist Wastepile-Cumm: 7.00 Ac Dist Processing-Cumm: 2.00 Ac Dist Active Mine-Cumm: 29.00 Ac Dist Total-Cumm: 56.00 ARR Rec'd Date: 2/2198 Bonded Acreage: 113.00 Bond Amount: Bond Type: Latitude: Longitude: Quadrangle: River Basin: Central Off. Comments: Regional Off. Comments: $500,000.00 B01 3,625,917.00 8,081,333,00 ELKIN NORTH YADKIN PEE DEE JAMES S. HUNTJR. :,,GOVERNOR +:WAYNE MCDEVIT-ez *" SECRETARY Mr. Tim Hendrix Vulcan Materials Mideast Division P.O. Box 4239. NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES T '�r,,,�v-„ o '1 00� .anuar i, 1998 Company Winston-Salem, North Carolina 27115-4239 RE: High Airblast Incident of December 23, 1997 Elkin Quarry Mining Permit No. 86-03 bYss; Surry- County :,.,. Yadkin -Pee Dee R i vPr Ra G i n ' ,CHARL68 HFGARONER,:'yF' rr -. P.Gr;•P.E.;DIRECTOR` l:.,t,;? AND STATE GEQI:OGIST,_a'; < `iz u { I . i Dear Mr. Hendrix: This letter is in response to the investigation report prepared by Dyno Nobel, Inc. on your company's behalf dated December 31, 1997. The investigation report contained information regarding the high air blast recording associated with the blast conducted at the quarry on December 23, 1997. An overpressure measurement of 130 d81 was measured by your company's seismograph at approximately 950 feet from the blast. This office has comnleted.its review of Dyno Nobel, Inc.'s investigation report. It appears that the excessive airblast reading for this shot was related to stemming ejection and/or cratering of second and third row holes because of increased confinement of this section of the blast. The confinement of the front row was caused by increased collar regions for front -row holes, as a result of actual burden __..-.. measurements made by the blaster. I concur with the remediation measures outlined in the report. In order to reduce excessive airblast readings in the future, the remedial measures proposed by your company through its consultant should be considered part of the blasting procedures used at this facility. If future airblast readings continue to exceed 128 dBl at this site, modifications to the blasting conditions currently outlined in Mining Permit No. 86-03 may be made by the Department.. LAND QUALITY $ECTION (919j 733-4574 'FAX (919) 733.2876 GEOLOGICAL SURVEY SECTION (919) 733-2423 FAX (919)733-0900 a n BOA - - -- -- • -•-�". , ..rc,.. ..+.+, .. ..nnv�irvn ciai i i00% 7ELEPrIONE (9i 9]733-3t333 PAX f9191715.8801 AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - 50 o RECYCLEW10% POST -CONSUMER PAPER Mr. Hendrix Page 2 I appreciate your company's prompt investigation and reporting of this matter to the Department. If you should have any further questions on the above, please contact Mr. Tracy Davis, P.E., State Mining Specialist, at (919) 733-4574. Very truly yours Charles H. Gar ner, P.G., P.E. CHG/td cc: Mr. Trac _Davis, P.E! Mr. Matthew Gantt, P.E. (w/copy of 12/31/97 investigation report) , CDENR: L C'tk,W �1JAME9 B. HUNT.IR.�;'' -; , AYt.}I[Y ,{GOOVERNOR t 1 y!' T,kX NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LANs) RESOURCES January 9, 1998 Mx. Tim Hendrix Vulcan Materials Company Mideast Division P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 RE: High Airblast Incident of December 23, 1997 Elkin Quarry „ Mining Permit No. 86-03 Surry:County Yadkin -Pee Dee River Basin Dear Mr. Hendrix: This letter is in response to the investigation report prepared by Dyno Nobel, Inc. on your company's behalf dated December 31, 1997. The investigation report contained information regarding the high air blast recording associated with the blast conducted at the quarry on December 23, 1997. An overpressure measurement of-'130 dBl was measured -by your company's seismograph at approximately 950 feet from the blast. This office has completed its review of.Dyno Nobel, Inc.'s investigation report. It appears -that the excessive airblast reading for this shot was related to stemming ejection and/or cratering of second and third row holes because of increased confinement of this section of the blast. The conf iriement '-'of" the front row was caused by increased collar regions for front row holes, as.-a'result of actual -burden measurements made by the blaster: I concur with the remediation measures outlined in the report. In order to reduce excessive airblast readings in the future, the remedial measures.,proposed by your company through its consultant should be considered part of the.blasting procedures used at this facility: If future airblast readings continue to exceed 128 dBl at this site, modifications to the blasting conditions currently outlined in Mining Permit No. 86-03 may be made by the Department. - LAND QUALITY SECTION (9191733.4574 FAX (919) 733-2876 GEOLOGICAL SURVEY SECTION (919) 733-2423 FAX (919) 733.0900 P.O. BOX 27687, RALEIGH, NORTH CAROLINA 2761 1-7687 TELEPHONE (919) 733-3833 FAX (919) 715.8801 AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/IO c POST -CONSUMER PAPER Mr. Hendrix Page 2 I appreciate your company's prompt investigation and reporting of this matter to the Department. If you should have any further questions on the above, please contact Mr. Tracy Davis, P.E., State Mining Specialist, at (919) 733-4574. Very truly 'yours, Char(far ner��G P� G, .., P.E. _ .... CHG/td cc: Mr. Tracy Davis, P.E. Mr. Matthew Gantt, P.E. (w/copy of 12/31/97 ' investigation -'" report).. i Hrddx cae: vtros Time; 21:07756 Peysa ort )YNO NOBEL INC. ©II ND Dyno Nobel Report To: Mr. Tim Hendrix Vulcan Materials Company Elkin Quarry cc: T. Davis NC DHENR P. Dotson, VMC P. Thomas, PEI R. Flinchum, DNA Author Stuart Breshear Date: December 31, 1997 Investigation of High Air Blast Reading - 23 December, 1997 Mr. Hendrix, In association with blasting services provided to Vulcan Materials by Piedmont Explosives, this office has reviewed shot information regarding the production blast dated December 23, 1997 that resulted in air blast values in excess of allowable limits for the Elkin quarry. The results of ibis investigation are provided for your review.�,,�glw. OVERVIEWY'"; 11 On December 23, 1997 the initiation of a 77 hole production blast a Elkin quarry resulted in a recorded air blast reading or 130 un, exceeding " - 29 B limit imposed by the state of North Carolina for mine and quarry operations. Asa esult, blast design metrics associated with this blast have been reviewed by the Dyno Nobel technical service team to determine the cause of the enhanced air blast reading as well as any measures that need to be taken to minimize the potential for a reoccurrence. SHOT DESIGN METRICS AT ELKIN QUARRY The basic blast deisgn at the Elkin quarry must take into consideration the cap rock situation normally encountered. This cap rock or laver of hard, competent material on the surface of the bench, can result in oversize material and additional confinement of the blast if explosive energy is not placed within the layer of cap rock or as close to it as possible. Oversize and added confinement can increase community perception of blasting by adding to transient residual vibration energy for the blast. ELKINI.aAM RW OMMIM 198 11:10 IO:VMC ELKIN QUPRRY TEL NO:+ 1a176-2941 a339 P03 — r: Tim aee#de aide: I01100 T e: 21:00:52 Pape 5 a 9 RAPPORT To minimize the impact of this cap rock, the blast design at Elkin has bean adjusted to meet the demands of the specific pit geology. A reduced pattern and use of emulsion repump product provides excellent explosive distribution throughout the rock mass, essential for breakage and minimized vibration effects. With a relatively small burden and spacing design, stemming heights can be increased due to the relationship between burden and stemming. Utilizing commonly accepted blast design formulas, stemming heights typically are approximately seventy -percent (70%) of the burden. As the burden used on the shot dated December 23, 1997 utilized a burden of ten (front row) to twelve (second and third rows) feet, nominal stemming heights range from seven to eight feet. As is normal practice for Piedmont Explosives, front row burden measurements are made for each hole to determine actual burden for each hole. As a result, actual stemming heights typically are greater than nominal, due to reduced front row burden to the top of the free face as is common for bench blasting. For the blast in question, the front row was custom loaded to insure adequate rock mass in front of loaded boreholcs. Due to tho reduced burden oncountorcd on the top section of the free face, stemming heights averaging twelve to fourteen feet (12 - 14 ft.) were encountered. The second and third rows of the blast were held at seven feet, the common practice at Elkin, based both on empirical calculations and observed field results from typical production blasting. OBSERVATIONS OF THE BLAST VHS video recording of the blast was performed by VMC personnel. A review of the video t showed definitive venting of stemming on the second and third row of the blast. 'tF In addition, the seismogram associated with the 130 dB recorded air blast reading was reviewed. As with the ground vibration charnels, the shape of the air blast wave is instrumental in assessing the actual cause of the enhanced air blast. In reviewing the record from seismograph unit 2452, the air blast channel shows a distinct, sharp peak associated with the 130 dB reading. This peak is indicative of multiple hole stemming ejection and gas venting. This is consistent with observed stemming ejection observed in the blast video. T ➢ETEMMINED CAUSE OF ENHANCED AIR BLAST READING In assessing the potential cause of air blast events, a fundamental rule of explosive energy must be considered at all times, energy always follows the path of least resistance. Venting of explosive gas and stemming ejection are caused by the path of least resistance for released explosive energy being up through the stemming region rather than Forward towards the free face. Given the observed venting of second and third row holes, though ELgN1.SAM 98 11:11 ID: VMC ELKIN QURRRY TEL NO:+ h1R6-2941 #339 P94 c Tim 1 rft Dete: 111193 T"D: a1:10:0a rose 0 at a I niura stemming heights were consistent with common practice at Elkin, the conditions found in the front row were reviewed to determine if the resupsnt venting was related to movement in the front row of the blast. As stated earlier, the front row collar region varied to take into consideration reduced burden in front of blast holes. Given the use of repunrp product, a significant increase in the stemming region on the front row was needed to assure adequate material in front of each loaded section of each front row hole to insure that venting of explosive gas and increased rock motion velocities in the free face did not occur. Such venting and enhanced movement on the free face can result not only in enhanced air blast values but also an increased potential for flyrock, as predominant rock motion is horizontal. With increased stemming regions encountered on the front row, the top section of the front row was under loaded. This unenergired section of the blast was the contribution factor in the stemming ejection observed in rows two and three. In effect, the second row of holes encountered twice the nominal burden in the top of the blast, as the top of the front row was so lightly loaded due to increased stemming heights. This changed the path of least resistance for the second row holes from the free face To the bench surface. This resulted in cratering around the stemming, venting released explosive gas to the surface of the shot, causing the sharp air blast pulse recorded by the seismograph. REMEDIATION OF CONDITIONS RESULTING IN ENHANCED AIR BLAST EVENT Present overload on the second line of holes i MiCi wOA�u �nwnm W1b1 i10W hxY06 • lop wioevf0e: euw ms.m mmrepearn B mrfl. TlNaleE hYOC.Ih RM1 NYbbJ.( ,bonma ®wsu ELIONI.SAM C:IWOXRW/IDRO 999 11:11 ID:VMC ELKIN MARRY TEL NC:n )z1a6-2941 4339 P05 -- m ran 1lenaar Me: vlrvs rime: 71:11:11 pros r ms RAPPORT As demonstrated above, the cause of the enhanced au blast event was due to confinement of the second and third rows of the blast. In reviewing practices employed for this blast it is recommended that additional customizing of the loading of front row holes be employed tojr/ insure that overconfinement of the top section of the blast does not occur, creating a Uc situation where stemming ejection is possible. In addition some modification to loading h' practices for the second and third row should be considered and evaluated in the field for practicality and effect. J The current practice of measuring front row burden on a hole by hole basis provides the best method of insuring adequate rock mass To properly utilize released explosive energy from the front row holes. The problem encountered on the shot of December 23, 1997 was due to the need to increase the stemming region to the point that the cap rock conditions found at � it Elkin confined movement of the front row rock mass, effectively doubling the burden for (µum the second row to act on. To remedy this situation, it is recommended that in addition to the solid repump column loaded in the section of each front row hole where sufficient burden is present, a reduced l'l diameter charge is used to increased the height of the explosive column. This will provide X needed energy in the cap rock region to facilitate breakage and movement of the section of the blast, providing needed relief for the second and subsequently third row of the blast. For the second and third row of holes, it should be considered that The full column load of repump emulsion product, owing to its high density, be reduced and the remaining section 1tt, *R of the hole up to the desired seven foot level be likewise loaded with reduced diameter /I product. This will reduce the potential for stemming ejection or omlering even in cases where designed relief of the front row may not be attained. Modification of loading designs as outlined above should provide an additional measure of safety and control with regard to potential air blast incidents. In addition to the issues discussed above two additional areas of possible modification of current blast metrics, the use of different delays with regard to downhole initiators should he O considered. By using identical 350ms downhole detonators, there is a 50150 probability that each hole is initiating top down rather that bottom up. If a longer length shock tube is being utilized on the downhole detonator, the probability of top hole initiation is increased. pvv In conditions such as those present on December 23, 1997, having the point of initiation towards the top of the explosive column in second and third row holes could be a contributory factor in stemming ejection or cratering , resulting enhanced air blast effects. The use of a longer period top initiator should be considered to insure initiation at the ® bottom of the hole, where maximum detonation pressure is desired to aid in pulling the toe LZ and floor control. xtu ELKINI.SAM C:W)RR iPRO It: 12 ID: VMC ELKIN OUPRRY TEL NO:r h136-2941 P339 P06 m Hsm& Date: IM168 TAne: 21:t2:28 Page a of a RAPPORT In reviewing the current shot design, it is also noted that current initiation sequencing utilizes a between row delay of 42 milliseconds. While the geologic conditions encountered at Elkin have show that faster delay intervals, particularly between holes in a row have Reduced charge diameters for all holes l uw•mav �.M nmra•i•� d'y�••n yylgtiwa. Iry•xWpmM •hdi•�o�n wdwpp<.m•w ommm ee•maeuiuw resulting in better breakage, it may be possible to increase between row delays to provide additional relief for second and third row holes. This would again relieve some of the tendency for the second and third row holes to have a path of least resistance that is vertical rather than primarily horizontal. CONCLUSIONS Based on data collected from the shot report, videotape and seismogram, it has been deta.Tnined that me cause of the enhanced air blast value recorded at Elkin quarry on December 23, 1997 was the result of stemming ejection and/or centering of second and third row holes due to increased confinement of this section of the blast. The cause of the confinement of the front row was due to increased collar regions for front row holes, as a result of actual burden measurements made by the blaster. It is recommended that reduced diameter (3S inch) product be used to increase the effective explosive column lengths to provide needed energy in the top section of the shot. This will allow for better rock movement prior to the detonation of second row holes, providing the desired path of least resistance for second row, and subsequently third row holes, resulting in nominal air blast effects. EUaNt.aAM GAWORRwAIPRO F%no.: EINnt.mm —. JHN-eS-'7b' 11: 1b j MmMm To; Tim NenMe IU:VNI LLK1N WWHRRY ILL MJ:r /il7b-�2941 $4140 Ybl - ode: VIN5 nme: 21:13:2a pees 9 of a RAPPORT Additional measures, such as downhole detonator sequencing and between row timing should be reviewed with the blaster to determine if my modifications can be made. These issues are considered points to be evaluated, not necessary remediation practice for minimizing the potential for future air blast incidents. Should you have any questions or require additional information, please do not hesitate to contact this office at any time. Respectfully submitted, Stuart Brashear, ISEE, SME Distributor Sales Team, Technical Services Dyno Nobel Inc. EWN 1.SAM -- JHN-bb-'Jb 11:16 IU:VMC ELKIN UUPILKY IEL NU:r Ja1Rb-Z691 TRiarER ACTIVE, 12/23/97 1311BA20 #1 d 1-02 we SAFEGUARD SEISMIC UNIT 2000DK ► SN:2432 Tuesday, 12/23/97 13130:05 Event: 040 Client: VULCAN MATERIALS, CO. Operation: ELKIN SSU Location: CC 46 WOOD RES. Distance to Blast: 950 Operator: MITCHELL WAGONER Comments' SG 0937 Trieser Lavels' 0.04 in/sec, 109 db Record Time: 5 secs Ranee: Auto 5 ips VIBRATION 6 SOUND TIME HISTORY Time Scale: 0.1 (sec/div) Data Scale (seismic)' 0.32 (in/zac) Data Scale (air)' 0.009 (psi) :iJZIIf1.-15 PPU (in/sec) 0.09 C 0.1 PD (0.001 in) 17 -Ml 1 PPA (e) 0.10 6.07 0.05 FRED (hz) 13.8 31.2 35,7 RESULTANT PPU: (in/sec) PEAK AIR PRESSURE' (db) L30 (psi) 0. Waco Tuesdarr 12/23/97 13130:05 JHN—BS—'JU 11:16 ID:V11L LLK1N GUHh'IdY IEL NU:r Ja17b-2LJ41 AJ40 YId5 Nralsm" Blasting Report Quarry Elkin _—Pill No. LL4 Date Ia=P1-97 . - �1 Type of Snot rod r-4 �� Exact Time I Type of Materiel �Ky� Shot Grid - Distance (Ft.) Direction S __Gntl CG—U6 (To nearest occupied building nail or leased) 01 Seis. Location Axf��y d�� Dist. to Seis. Q O Grid . - a2 Sais. Location p 4a:QA1xD._ Dist. to Seis. // O Grid - 4 a3 Sels. Location Dist. to Sels. Grid ���7 Maximum Number of I1d06 Type of Stemming �¢� lbs. Per Diameter (inches) sYa Fa o HDelay'L eight__-..-- Spacing // Sub Drilling 1Q]",r Burden /p Number of Rows Method of Firing 17W0 Type of Circuit: Series Parallel Parallel Series Type of //p�e(L'ays: 1Downline 3S0 Sudace 7 Y Trade Name C �A& jn Ir[.,C-R!!1 .... Hole/Deck No. Daley Period Depth Stemming Total Pounds Per HOIa/Dack J 13 eis I $ a ) 4 1 a /(a y .. LvlFE a� C7 � 43 Ji G / 111, Li l_.. _ Weather ❑ after FITioudy Cl Rain n Snow (check two) ❑ Hot Q Warm =Cold Wind From ❑ N L NE El East ❑ SE (check one) u S C�SW ❑ West rl /(a / '( / t:8 Fragmentation Excel [IV, Good ❑ Good ❑ Fair LyJ Poor Backbreak LJ 10 n. ❑ 20 ft ❑ 30 ft. ❑ 4D N. ❑ 60 n, or more d3 ay136 /a Trade Name of Explosives _ Amount S ran as / aF ass g —. as Its 3o as v2a _ Yotal S lbs. Total Pounds / S/l Powder F-a�clor l Gal of Oil ol�iarmil ed % Oil Content �� -aa Tons of Materials Bench fAI_ Grid Map Data =ram=�fa_ Scale Distance 33' Produced Remarks:_— Dibblbution: Administrative Dept. — ORIGINAL Plant Office File Sup Blaster Signature Rrerw FaleN Rea License or S.S. l J fiN-t]S-"Jd 11: 17 IU: UMC ELK IN WUHWY ILL NU:1 h17b-: `J41 4.540 H04 EL. �mlw�w� lrG���1�Iw E���iwtw■ ®Fflw�i7F� t1Ei�il■w���w RAMMONWIMMM �FJ%—A—_�_ ®mm��� �Em � Total Pounds S/% 7 Tons of Materiels Produced / 1 II j _11,+J Typical Hole Show Primsr\ Lotallon antl/II Stemming Top of Bench .7 ` 5ie mans (or ��i 3So nrs Length CPS (Ft.) of Hole Floor Level J (Ft.) C Cowl of Sub Orlliine i "- JHN-bS-'SS 11:1l1 IU:VNC ELKIN tl HNKY IEL NUR+ Jilzb-2b'41 NLb 14 13 N T 14 19 cot sq PIC,fT 7 !4f On f9r 11.9 39 vo yr 'va 1 Ifo w r P /1�5i{/ / 9 l 4. �80 JTJ 995 8'71 jrr: 79 ..... .,.....,I ... . ....... .. I_.I rj ... . . i LAND QUALITY S0ION BLASTING ANALYSIS WORKSHEET (' = denotes fields where input data is needed) Permit No.': 86-03 Permittee': vmc Mine Name': elkin quarry Blast Report No,':40 ➢ate of Blast': 12/23/97 Time of Blast': 01:32 PM Peak Particle Velocity Check: D = Distance to closest offsite occupied structure (ft) : Di = 950.0 W = Maximum pounds of explosives per delay (pounds) : W' = 707.0 SD = Scaled Distance: SD = D/W^0.5 SD = 35.72843 V = Peak Particle Velocity (inches per second) : V = 160 (SD) "-1.6 V = 0.524 ('max. limit in mining permit is: V = -° ips) Based on known distances from the blast to the seismograph and any additional location, the expected vibration level can be estimated at the second location as follows: V = Particle velocity measured by the seismograph (ips) : V' = 0 DS = Distance from blast to seismograph {ft) : DS' = 0 d = Distance from blast to second location Ift): d' = 0 PPV = Theoretical peak particle velocity at the closest offsite occupied structure (ips) : PPV = V(DS/d)^1.5 PPV = ERR Airblast (Overpressure) Check: P = Unconfined Airblast/Overpressure (psi): P = 82 (D/W"0.33)"-1.2 P = 0.294385 To convert (psi) to (dBL): (P/2.9 x 10"-9)log x 20 P = 160.1304 AB = Confined Airblast/Overpressure (dBL) : AB = P (dBL) - 35 dBL (for quarry situation) AB = 125.13 ('max. limit in mining permit is: AB 1211 dBL) WT. Davis 6/24/94 GO TO PAGE 2 FOR EXPLOSIVES COLUMN CHECK Explosives Column Check: (this is a very approximate method based upon numerous assumptions; specific densities may vary greatly depending upon the type and manufacturer of the explosive products used in the shot; must consider each explosive used; refer to Dupont Handbook for actual SPD, otherwise use the following:) Assumptions: If 'straight, emulsion is used, use SPD (specific density) = 1.20 [per Ireco) If a "blend/slurry" is used, use SPD (specific density) = 1.25 If "straight" anfo is used, use SPD (specific density) = 0.85 Ratio between explosives: Total pounds of Explos. W = 15060 Total pounds of Explos. 42 {use 10.1" here if only have one explos.)' = 0.1 Ratio between explosives = 150600 Average pounds of explosives used per hole (pounds)' = 197 Breakdown of average pounds of explosives per hole due to ratio: Explosive 11 = 196.9987 Explosive #2 = 0,001308 SPD = Specific densities for each explosive: SPD for Explos. #1* = 1.25 SPD for Explos. #2 (use 10.1" here if only have one explosive)' = 0.1 HD = Hole Diameter Used in Shot (inches): ED* = 5.5 LD = Loading Density (pounds per foot of column) : LD = SPD(.34) (HDI "2 LD for Explos. 11 = 12.86 LD for Explos. #2 = 1.03 Explosive column height for each explosive (feet) : Explos. #1 = 15.32318 Rxplos. 92 = 0,001272 Total explos. column height = 15,32446 Stemming height used in shot (feet}+ = — 11 Total height of explosive columns) and stemming in the hole = 26.32446 Total depth of hole denoted on the blasting report for the shot in question* = 25 Analysis Completed By: Date: @T. Davis 6/24/94 SRN-05-398 11:09 ID:UMC El -KIN QUARRY TEL NO:4 )n176-2941 d339 P01 7;7 7pc �W 14P Author: Jim Simons at NROLROIP Date: 12/29/97 8:51 AM Priority: Normal Tracy Davis CC: Tony Sample CC: Judy Wehner CC: Mall Nevils CC: MGantt@wsro.ehnr.state.nc.us at Internet Subject: Air Blast at Elkin Quarry _________________________ ___ __ _ _ Message Contents ______________ I got a call at 8:00 Monday, Dec. 29 from Tim Hendrix at the Vulcan Elkin Quarry. He said that he had been trying to reach us for several days, but they had a 130 dbl air blast at the quarry on Dec. 23. The blast was on the top bench. They were preparing a report for us, but he asked if they could blast at a separate area on the quarry floor. Pursuant to the blasting permit conditions, I told them it was okay to blast the floor, as the likelihood of airblast violation should be less there. It there is a problem with this, let me know. Thanks, Jim JAMES B. HUNT JR: -M VERNOR ^ni WAYNE MCDEVITT SECRAARY CHARLE9 H. CAROMRB •� E. DIREGEOR•""� ANOSTATEGEOLOc19T NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF LAND RESOURCES October 9, 1998 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Mike Poplin Vulcan Materials Company P.O. Box 4239 Winston-Salem, N.C. 27115-4239 RE: Modification Request for Elkin Quarry Permit No. 86-03 Surry County Yadkin River Basin Dear Mr. Poplin: Your recent request to have the above referenced mining permit modified has been approved. The modification is to allow timbering activities only within the area delineated on the 8 %2 x 11 inch mine map submitted to the Winston-Salem Regional Office on October 6, 1998. This approval is contingent upon the following: 1) The timbering/forestry activities must not include clearing and grubbing (exposing the surface soil to accelerated erosion); 21 The timbering/forestry activities must not affect the buffer zones or any specific visual screening requirements contained in the mining permit; 3) Appropriate best management practices must be installed and maintained for all logging roads, decks, etc. to prevent off -site sedimentation; and vOGUAUTY9Evlory 19191733-4574 FAXE191733-2a7A GEOLOGICAL SURVEY SECTION 19191 i33R923 rA%19191733-0900 e� I V.O. Baa 2768 J, RALE IGH. NO SIT CAROU N A 27511-7 687 TE LOP HONE 1913 911733033rA I 95 17158 P01 �i3'(✓ AN EOwL 0 PPC RTUN I TY I A FF1 R M AT IVE A CTIO N E MVIOY E R . 50`. REGEO 10 R CON E ER CERTIFIED MAIL Mr. Poplin Page 2 4) Pri-o-r-to initiation of clearing and grubbing within the mining permit boundaries, a detailed sediment and erosion control plan/permit modification must be submitted to and approved by this office. Please attach this a;proval letter to your exi5.ting mining permit for future ! The 1 reference. T ne expiration date, mine name and permit number on the permit document shall remain the same as before this modification. 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. Please contact Mr. Tracy Davis at (919) 733-4574 should you have any questions concerning this matter. Sincerely, L% Tf Charles H. Gardner, P.G., P.E. CHG/tls cc: Mr. Matthew E. Gantt, P.E. Ms. Barbara Rote-WRC Mr. Bradley Bennett-DWQ State of North Carta Department of Environment, IVA Health and Natural Resources ria Division of Land Resources AA o Jaynes B. Hunt, Governor � it J n II r7 Jonathan B. Howes, Secretary L G� Y V �1 Charles H. Gardner, P.G., P.E. Director and State Geologist December 6, 1996 Mr. Chris Scott Vulcan Materials Company P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 RE: Permit No. 86-03 Elkin Quarry Surry County Yadkin -Pee Dee River,Basin Dear Mr. Scott: Your recent request to have the above referenced mining Permit modified has been approved. The modification is to add 8.45 acres to the permitted area for the SR 1142 relocation and future affected area in accordance with the State Route 1142 Relocation Plans dated June 1996 and the Mine Plan Revision Maps dated October 1996. In addition, the modification also includes a 30 acre expansion of the pit area and the addition of two 6 acre settling basins as indicated on the Mine Plan Revision Maps dated October 1996. 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. - _ _ _ - _ ._... ._ . 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 238.52 acres and the amount of land you are approved to disturb is 113.0 acres. Geological survey Section Land Quality section Geodetic Survey section (919)733-2423 (919)733-4574 (919)733-3836 FAX: (919) 733-0900 FAX: 733-2876 FAX:733-4407 P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-3833 FAX 919-733-4407 An Equal Opportunity Affirmative Action Employer 50%recycled/ IA poet -consumer paper Mr. Scott December 6, 1996 Page Two 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, F.E. State Mining specialist Land Quality Section TED/jw Enclosures cc: Mr. Matthew Gant, P.E. Ms. Barbara Rote-WRC, w/attachments Mr. Bradley Behnett-DWQ, w/attachments • • D EPARTME NT O F ENV = RONMENT ,, H EALTH AN D NATURAL RE S OURC E S D 2 V I S= ON (DIP LAN D RESOURCE S LAN D QUAL = T Y S E CT = 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 L-G11l11JJ1 V11 1J IG1 G1 _Y �Jl 1.A114..G Vulcan Materials Company Elkin Quarry Surry County - Permit No. 86-03 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: November -12, 2001 • 0 Page 2 of 13 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 -author-ized-by-law.---.-._-_-___ __ Definitions fAii, /IY PAi1r,M . ■1ilGl G Y G�. u7r..7 0r.referred i4-V 1114-h1 r permit , unless t-he context clearly indicates -otherwise, terms -shall have the same meaning as supplied by the Mining Act, N.C.G.S. 74-49. Modifications November 12, 1991: This permit has been modified to add additional land contiguous to the existing permit area, stockpile/overburden disposal areas, and the eastern pit expansion/road relocation as specified by the revised Mine Map, Details and motes, and Emergency Spillway and Cross-section sheets dated June 26, 1990 and revised September 12, 1991 with stipulations. • • Page 3 of 13 December 14, 1992: This permit has been modified to construct a new overburden disposal area including the associated sediment and erosion control measures as indicated on the Elkin Mine Map dated October 12, 1992 and detail sheet and supporting calculations dated October 12, 1992 and October V, 1J92, respect-Lve"y. March 26, 1993: This permit has been modified to include the "Land Farming" of contaminated soils per the Plan and Maps dated February 10, 1993. December 6, 1996: The modification is to add 8.45 acres to the permitted area for the SR 1142 relocation and future affected area in accordance with the State Route 1142 Relocation Plans dated June 1996 and the Mine Plan Revision Maps dated October 1996. In addition,.the- modification also includes a 30 acre expansion of the pit area and the addition of two 6 acre settling basins as indicated on the Mine Plan Revision Maps dated October 1996. Expiration Date This permit shall be effective from the date of its issuance until November 12, 2001. 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-. 0 Any stormwater runoff from the affected areas at the site shall be in accordance with any applicable permit requirements and regulations promulgated by the - - Envi-ronmental--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. • 0 Page 4 of 13 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 shall be maintained between any affected land and any adjoining waterway or wetland to prevent sedimentation of that waterway or 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 Plan Revision Maps dated October 1996 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. 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. M. The revised Mine Map, Details and Notes, and Emergency Spillway and Cross -sections sheets dated June 26, 1990 and -- --revised-September--12 ,--1991-shall be followed with the - following stipulations: 1) all rip -rap channels shall be undercut to allow for proper placement oaf all '—1✓ --1U--1./ J-- not V u�nJ to reduce -the design capacities of said channels; 2) all areas at the site to be disturbed shall be limited to those defined on the revised Mine Map received by the Land Quality Section on September 24, 1991. All other areas shall be considered natural buffer zone areas and shall not be considered disturbed until such time that a modification.request to disturb said areas has been submitted to and approved by the Department; 0 Page 5 of 13 3) all sediment basins shall be cleaned out when they become one-half full of sediment and after each significant rainfall event; and 4) Class 1 and Class B rip -rap channels shall have minimum stone liner thicknesses of 22 inches or two times the d50 stone size, whichever is greater. C. The Mine Plan Revision Maps dated October 1996 and the Plan and Profile of Proposed Sate Highway 1142 Relocation dated June 1996 shall be followed with the following stipulations: 1) Rip -rap channels at the stockpile/processing area shall be constructed in accordance with the design calculations submitted with the supplemental information dated November 14, 1996. 2) North American Green Straw Erosion Control Blanket No. 5150 or equivalent shall'be used for temporary ditch liners. 3) Sediment fence shall be installed and maintained in accordance with the specifications submitted with the supplemental information dated November 14, 1996. 4) The State Route 1142 relocation shall remain part of the mining permit until a) the Department of Transportation agrees, in writing, to assume maintenance responsibilities for the road and b) a partial release request is submitted to and approved by the Department of Environment, Health and Natural Resources, Division of Land Resources. 5) A minimum top width of five feet shall be provided for all approved rock dams. 6) Stone outlets shall be installed every 200 feet to dewater areas behind the sediment fence and prevent failure of the sediment fence. 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. D. The sediment and erosion control measures shall be installed and maintained as per the plan dated February 10, 1993 for the "Land Farming" area. • 0 Page 6 of 13 5. Groundwater Protection A. The observation wells denoted as OW1 through OW3 as indicated on Figure 1 (attached) shall be installed and _ , niorii-Lcreu as specifieu below. B. The observation wells shall be drilled wells cased into consolidated rock and grouted to the surface. The wells (boreholes) shall be extended at least 50 feet below static- water level, or at least 50 feet into unweathered -rock, whichever is deeper. The wells shall be secured against unauthorized entry with a lockable cap. The necessary permits or approvals to construct these wells shall be obtained from the N.C. Division of Water Quality, Groundwater Section. C. The observation wells shall be monitored twice a month (bimonthly) at the same day and approximate time of day for twelve (12) consecutive months following the installation of the wells. The static water levels shall be.measured with an accuracy of plus or minus 0.1 foot and shall be referenced to a datum point and a record of the water levels maintained. The bimonthly precipitation and the volume of pit water discharge shall also be recorded. Copies of these records shall be provided to the Department on or about the end of each month. Static water level monitoring frequency may be increased or decreased following the initial twelve (12) month period 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. B. -Overburden cut slopes along the perimeter of any pit expansion 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 any overburden slope. 0 Page 7 of 13 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 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 8 of 13 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 Ye 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 barbed wire fencing as indicated on the revised Emergency Spillway and cross -Sections sheet dated June 26, 1990 and revised September 12, 1991 shall be maintained at all times around the pe�ameter of- any highwall �to prevent inadvertErit publ c-'addess . '-- Zn 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 revised Mine Map, Details and Notes, and Emergency Spillway and Cross -Sections sheets dated June 26, 1990 and revised September 12, 1991. S ® Page 9 of 13 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. S. 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. C. No land farming of contaminated soil shall occur at the site until proper permits and.approvals have been obtained from the Division of Water Quality (formerly the Division of Environmental Management) and two copies of said - +and.w Quality pern; .,.-,v,-l�.rc L��,�„1„i++Guvam Central Office. 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. Bonda.na The security which was posted form of a $500,000.00 blanket nnerat i nn a c i nr9 i rraterl in the security must remain in force total affected land shall not pursuant to N.C.G.S. 74-54 in the bond is sufficient to cover the annrnwarl annl i rat i nn _ rph i c ._�. r.� ... . �... .ter.. L-•_ _...... __ ...... .�..�... for this permit to be valid. The exceed the bonded acreage. • 0 Page 10 of 13 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 11 of 13 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. Tha annrnWarl nl nn nrnvi rlac 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-ncTuded--in--the -- 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 shaii - --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 12 of 13 2. The specifications for surface gradient restoration to a surface suitable for the planned future use areas 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 Conditions Nos. 12.A., B. and C. 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 approved in the renewal application by Mr. Ri".hard E�e.rhar* Di�trivtr..�.nc..er:lat,ti.,�::i,�st Na,.,tl.�ral Re��.�.:r!'.e.�. Conservation Service, on December 19, 1990 with the following additions as per the North Carolina Wildlife Resources Commission: - - - ---- ---Early-Sprinct:----Switchgrass----------- — - -- . --8-- lbs .-/acre ---- VA 70 shrub lespedeza 20 lbs./acre Fall: Orchard grass 18 lbs./acre White clover 9 lbs . / ac:i e ® ® Page 13 of 13 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. Reclamatinn 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 27, 1972, renewed September 27, 1982, contemporaneously renewed and modified November 12, 1991, and modified December 14, 1992 and March 26, 1993, is hereby modified this 6th day of Deecember,L 1996 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 �r • J - 1. -- � _ .'.+:i.+- :.jam., (v4�:��`�; _ � -' .- Vu(W pkaltkbt 1. l ost rA- EL 5 I1�/�f k13.098.68— _' i IPILE 1 \`I ,y l_I_L.�.� ,; \ i4 4 •`_ Gvl- Xc �''r _ r� �,1I{_.�t,'/ / Ij`\ `�i� j/ �\ j l ✓-��� ' 1 1 i !r , � - 1 � .} •#•\ II 1 ^i ! I I � � � _ . S I^ i � � 1 � � I i 1, �r-� . \ �) �- , yi 1 rlf, II 1., :i I i I /J/,S � •1 � i I --� i,�• 1'��.4" ~o-•�; I, s 1. ';Y El`S � I J E If 222,41311 li--I• E% 74.60.1'__ I'1_ 1 I I I r I f i,� •'..�• 1 •} IP PILE �/ 1 1`el s I ly y I ! T ISO 4fI ._��;/,•'—T _!� I Y\ J I i �'1 II PILE 1\ w✓/ �5`5ti \: a� •�-- - �. c. — - 1. = .- .f. _.. � f._— -�• 11pI }�. .\ ������ 'l � I•r;r '� 1, 4 �.. \' -` � I _ r �" ,,?r� tir '�� �i. � i.0 � Ur � ' } ,1' S I'I, f �' I r� - r`� �"� � � �, •l. f ,rl/ I f'� }�r •i I � - � 1 DENR Winston-Salem Fax:336-771-4631 • Oct 5 198 15:51 P.01 O NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES WIN5TOWSALEM REGIONAL OFFICE COUTER FAX 5 H E E T TO: Loy Same From: Winston-Salem Regimel OHirc Fax#: 4t�1'i3-28 V Name: M• Go Tm "am: fuew O. Fax#: (336)771-4631 Dole; 101619s Phone#: (336) 771-4600 Pages: , 3 Including this cover Z et COMNffiNTSS Please contact the person listed above if all pages are not received. �TONM, AS we DISCu%r�00-7Ntak.7711-At-101,-M'f0 WAR VNFIIL A PcA ^rC 1S .ISSJFV THESE l�arS 1]Pk` A w A'1 OF U'Etr rt[r OtT Or- CeI•TvQoL INS, PeQ -tkLilr4tr iro Gaw IT " FoacsT2�t • • �1awv�1 Tt+E 1r•1iFnri' 15 p•N w6rL_(iJROEr+ O�SPOsaI, QRcYa. YIEh`x rAt K �KAcy P8O�7i 11 IS ArID Lq KNOQ w14&r `100 A26 DOt..ltr fit-"+ rc. J.. -rw1aK '(NEM Wp .T !i OJ1(5� 2t5 Poasc M P.S. ?LIjus4 Cpu. M\Yk PovuN as wt-u,1. G 67 sp w.w..e....rm.......•.....a.. Mo... e..e�iTlm� •..ox. sarnl+.00 nnl wsl ♦. Ewu orr..m....IA.....mv wms. Rour .. sea .....uawma.m l.a .rON&UN..w r.r.. DENR Winston-Salem F�336-771-4631 Oct 6 '98 15:52 P.02 Ya�o)!foaan FWVA DATE: 10--5'91 TO: MAFax: 771' 43 /'��QI/S �//� r q,1 FROM: ' `l : F4 1 �7 1:... PHONE: ?44 - zo SAX: (336) 744-2019 NLTMA OF PAGES (ExCI�DiG�H'F�) a MESSAGE: yo:.. AY ze,d siee vne o16 �IJ3 s�Dla3iew NtAIM 6e:Dt e66T-9e-1�D I 0 1 10 4L I NS ZOO -r .- �rl, , .%Wm�:Mz- .Alll • 40 MEMORANDUM April 21, 1993 TO: Land Quality Section Field Staff THROUGH: Mell Nevils FROM: Tracy Davis? RE: Timbering/Forestry Activities Within Mining Permit Boundaries Several situations have occurred recently where timbering/forestry activities have occurred, without our knowledge, within the mining permit area. After discussing this situation with Charles Gardner and attorneys from the Attorney General's Office, the following policy will be used to handle these situations: 1) Timbering/forestry activities conducted within the mining permit boundaries without clearing and grubbing (exposing the soil surface to accelerated erosion) will not require approval from this office through permit modification. 2) The above situation will only be allowed provided that the timbering/forestry activities will not affect the buffer zone or specific visual screening requirements of the corresponding mining permit. ;} Prior to complete clearing and grubbing within the permit boundaries, a detailed sediment and erosion control plan permit modification must be submitted to and approved by this office. 4) Appropriate timbering/forestry best management practices should be installed for all logging roads, decks, etc. to prevent off --site sedimentation. MEMORANDUM April_21,_1993.. Page 2 I hope the above information will adequately address how we should handle these activities within the mining permit area. If you should have any questions on the above, please contact me, Beth or Tony. Thank you for your cooperation in this matter. TED/td cc: Mr. Charles Gardner Mr. Mell Nevils Mr. Jim Simons Mr. Tony Sample Ms. Beth Chesson Date ��G q MEMORANDUM TO: File FROM: Susan Edward�L--- SUBJECT: Notice of Issuance of Mining Permit a� A coYY"of t a ac ed tice of ssu nc R Mining Permit" was sent to A c o all people liste in the Affidavit of Notification and any additional people who rnn+ ;„ ln+-Fore If a rniihlir hearing was held; a copy of the "Notice of JGII 6 111 I1. 1.1.�- Issuance of Mining Permit" was sent to all people who signed the sign in sheet at the public hearing. My initials, written in red, will be beside the names of the people in the file who were sent this "Notice". cc: Regional Engineer NOTICE OF ISSUANCE OF MINING PERMIT You have previously expressed an interest and/or are listed as an adjoining land owner in the application to modify this mining permit filed by Vulcan Materials Company to conduct mining activities off SR 1142 in Surry county. The mining permit (no. 86-03) was modified on December 6, 1996. North Carolina law allows persons aggrieved by the issuance of a mining permit to contest the decision by filing a petition for a contested case in the Office of Administrative Hearings pursuant to N.C.G.S. 1505-23 of the Administrative Procedure Act (APA). If you believe that you are an aggrieved party within the meaning of the APA, a petition for a contested case must be filed in the Office of Administrative Hearings within sixty (60)days of the mailing of this notice to you. If you file a contested case petition, it must be in writing and in the form prescribed by N.C. General Statutes 150B-23. File the original petition and one copy with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, N. C. 27611-7447. Any questions about filing a petition may ected to the Clerk of the Office of Administrative Hearings by telephoning (919) 733-0926. You must serve the Department of Environment, Health and Natural Resources by mailing a copy of the petition to Mr. Richard B. Whisnant, Registered Agent and General Counsel, Post Office Box 27687, Raleigh, North Carolina 27611. Charles H. Gardner Director Division of Land Resources North Carolina Department of Environment, Health and Natural Resources This notice was mailed 041mm/ 7/g7� �Sz. Susan Edwards Mining Program Secretary 1 t 0 N.C. Department of Environment, Health, and Natural Resources Division of Land Resources, Land Quality Sect !on Te?ephone Log Dmc:� 1�9L Sheet of Time: �30 Pm Call: Placed ❑ Received ❑ Returned 1. Project Vu L — U#4)) PA,# N? ('V' gG-o3, County: 5 A' ' 2. Conversation WiLh Doi L- 61) Telephone:$Ed) 7_ Affiliation: pc&tm LA�I kt;' ' <. Content of convention' _ — " ^ 1 _��{ f � lcia— �ilff�rnv4� � � r i cc: 1101y 'Oil Fikdby: RECE VED � MINE SITE REVIEW FORM DEHNR DEM COMMENTS Project: MATWa$ C1..LI � ,%county: .—�ramrTriTn rrrr' SFfi'If;.. Due: water Ouality Issues: DUE PATE Y. Watershed/Stream Name` and Classification: 2. Permits: YES NO NPDES Permit Required ✓ NPDES Permit Existing Nondischarge Permit Required ✓ Nondischarge Permit Existing ✓ NOV Issued ✓ Civil Penalty Assessed/Injunction Requested 3. Wetlands: Wetlands Disturbed pp 401 certification Required Air Quality Issues: Air Permit Required Air Permit Existing V ZXt5fi J q;, G'"$ NOV Issued ..ate P«r:} Z"J RJc Civil Penalty Assessed/Injunction Requested �_ (IA - Groundwater Issues: Well Permit Required Well Permit Existing NA: Groundwater Contamination Problem NOV Issued Civil Penalty Assessed/Injunction Requested _ Signed %l1 � Date ' O DATE TO ASSISTANT y �DATE SUSAN LOGGED IN r N NIMING CHECKLIST FOR ROUTING Company �`'}'�� l "} Project Name 9YKdti//c�/1 Permit No. ^^'li3 County , sA v Date Received Reviewer / 11��i Lou a Please make ,copies of check to include with Central office and Field Office files and log in checks. * ❑ New ❑ Renewal ❑ Modification ❑ Transfer ❑ Release . ❑ dditional Information ❑ Fee Needed ❑ Fee Received: Amount _ to Please route to: /��� OO/ (N /1 i4➢hl Ylk?i Field Office Date Routed /I—aO— 9� ❑ wildlife Resources Commission Date Routed 1Ep} * ❑ Archives and History Date Routed ❑ Other: Date Routed suspense Date for comments: n5n PP (Date received +30 days, not on weekend) z' Please note the following: 1/An0 *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 CHRIS SCOTT SENIOR MINING ENGINEER MII NIVISION Ui ilr n W. E= Y®. Materials Company November 14, 1996 Ms. Judith A, W ehner, Assistant State Mining Specialist NC Department of Environment, Health & Natural Re P.O. Box 27687 Raleigh, North Carolina 27611-7687 Dear Ms. Wehuer: P0. BOX 42W NA 27115 239 QEHNR V urn, 18 � LAND QUALITy SI: 1 HE: Elkin Quarry Mining Permit No. 86-03 Surry County Thank you for the expedient review of the Elkin Quarry Mine Plan Revision and the State Route 1142 Relocation Plans. In response to your letter dated November 12, 1996, we have enclosed the additional information requested. 1. Supporting calculations for the riprap channels at the Stockpile/Processing Area are enclosed. 2. North American Green Straw Erosion Control Blanket, S 150, or equivalent, is Proposed for temporary linings. Manufacturer's recommended specifications for installation are enclosed. 3. A revised sediment fence specification is enclosed which meets the current NCDEHNR requirements. 4. The State Route 1142 relocation will remain part of the mining permit until the NCDOT accepts its maintenance. Once this occurs, VMC will apply for a release of the road and its right of way from the mining permit. a • Ms. Judith A. Wehner Page • 2 November 14, 1996 f tL_ above C ..,,«ced to -Liar PICase contort me O Encloses are two 1iC11j1eJ oA L11G dUUVG re1G1 G11VGu ulabc.i yam 1 L..nJ�, vvu�u v� should you have any further questions or comments. ejw Sincerely, Chris Scott Senior Mining Engineer Enclosures 41 • 0 Channels at Stockpiles/Processing Area Channels East & West of Proposed Fill Drainage Area = 0.30 Acres Runoff Coeficient = 0,35 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i25 =8.00 Peak Runoff (cfs) = Q25 =0.84 Classification: Temporary Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = n/a Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 0.00 Channel Slope = 25.00 i100 =10.00 Q100 =1.05 Retardance d A V Q' T Class (ft) (sq ft) n R (fps) VR (cfs) (lb/cu ft) Comments RipRap d50=15" (Class 1) (Td = 5.0) 0.32 0.31 0.0780 0.15 2.72 0.41 0.84 5.00 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=15° (Class 1) Temporary Lining: Geometry: V-Ditch Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 25.00 % PLANT.WKS B L A N K E T S 0 North American Green® Straw Erosion Control Blankets 5 0 The S 150 blanket features a straw fiber matrix sewn between tv✓o photo -degradable nets. The double net construction of the S 150 provides greater durability and effectiveness than the S75 on 3:1 - 2: I slopes, and moderate -discharge swales. ®S 1 5 The DS 150 straw blanket provides a quick - degrading alternative to the S 150. Acceierated photo -degradable top and bottom nerting assure bianket deterioration in 30 to 45 days. The DS 150 is perfect for more severe landscaping applications where close moving will occur shortly of rer vegetation establishment. S 1 50/DS 1 50 Specifications Material Composition Straw.... .5 fibs/sq yd (.27 kg/sq ml Net • . • . • iightweight degradable both sides Thread .. cotton, bro-degradable S 1 50/DS 1 50 Roll Specifications Width • • . 6.5 ft (2 m) Length .. 83.5 ft (25.5 in) Weiqht • . 30 ibs (13.6 kgl Area . • . • 60 sq yd (51 sq m) • 0 SEDIMENT FENCE (SILT FENCE) (Practice 6.62) Construction Specification Materials 1. Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon, polyester or polyethylene yarn, which is certified by the manufacturer or supplier as conforming to the requirements shown in Table 6.62b. Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of 0 to 120° F, 2. Ensure that posts for sediment fences are 1.33 lb/linear feet steel with a minimum length of 4 ft. Make sure that steel posts have projections to facilitate fastening the fabric. For reinforcement of standard strength filter fabric, use wire fence )Arith a minimum 14 gauge and a maximum mesh spacing of 6 inches. Table 6.62b Specifications For Sediment Felice Fabric Physical Property Filtering Efficiency "Tensile Strength at 20% (max.) Elongation Slurry Flow Rate Construction Requirements 85% (min) Standard Strength - 30 Ib/lin in (min) Extra Strength - 50 Ib/lin in (min) 0.3 gal/sq ft/miu (min) Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. Ensure that the height of the sediment fence does not exceed 1.8 inches above the ground surface. (higher fences may impound volumes of water sufficient to cause failure of the structure). Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are necessary, securely fasten the filter cloth only at a support post with overlap to the next post. 4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts using heavy duty_ tie wires. Extend the wire mesh support to the hnttnm nfthe trench 5. When a wire mesh support fence is used, space posts a maximum of 8 ft. apart. Support posts should. be driven securely into the ground to a minimum of 18 inches. 6. Extra strength filter fabric with 6-ft. post spacing does not require wire mesh support fence. Wire the filter fabric directly to posts. 7. Excavate a trench approximately 4 inches wide and 8 inches deep along the proposed lime of posts and upslope from the barrier. S. Backfill the trench with compacted soil placed over the filter fabric. 9. Do not attach filter fabric to existing, trees. 10. Outlet protection, every 200 ft. along fence. Any outlet where storm flow bypass occurs must be stabilized against erosion. Set outlet elevation so that water depth cannot exceed 1.5 ft, at the lowest point along the fenceline. Set fabric height at I ft, maximum between support posts spaced no more than 4 ft. apart. Install a horizontal brace between the support posts to serve as an overflow weir and to support top of fabric. Provide a riprap splash pad. Excavate foundation for the splash pad a minimum 5 ft, wide, 1 ft. deep, and 5 ft. long on level grade, lire finished surface of the riprap should blend with surrounding area, allo-v%r,ng no over -fall. The area around the pad must be stable. Nlaintenance Inspect sediment fences at least once a week and after each rainfall. Make any required repairs immediately. Should the fabric of sediment fence collapse, tear, decompose or beconrc ineffective, replace it promptly. Remove sediment deposits as necessary to provide adequate storage volume for the neat rain and to reduce pressure on the fence. Take care to avoid undermining tine fence during cleanout. Remove all fencing materials and unstable sediment deposits and bring the area to grade and stabilize it after the contributing drainage area has been property stabilized. 11 SENT BY: MARSHALL MILLER 11-12.96 12:51PM; 703 322 1510 => q1 FP)deO RIZ6 6UPPoe-O)-d C&L.[y��Yl7p FOt T7/E RAP R�9fl_ _ GH9�,NN�LS Rr 7f{� s7p=KG���ty y7�9 E1'P!Ih!v✓�/-9�_; '�7F�2fh2Y D1V�S�aN Dl�zri. UrVE7� SF2'LJFK!pT7Dn/S.• - Cif7� 1YiC :5 t11z ,0 y0J #7 tX yrlly oT YZ Qtj.317C 3 DR 6Wa7Zij,, Channels at Stockpiles/Processing Area Channels East a West of Proposed FIII Drainage Area = 0.30 Acres Runoff Coeficienl= 0.35 Time of Concentration = Minimum Rainfall Intensity Factor(inlhh5= i25=8.00 ON=10.00 Peak Runoff (cfs) = 025 = 0.84 0100 =1.05 Classification: Temporary Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = n/a Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 0.00 Channel Slope = 25.00 Retardance d A V 0 T Class 09 (sq R) n R (fps) VR (cfs) (ib/cu R) Comments Ripnap d50=15' (Class 1) (Td = 5.0) 0.32 0.31 0.0780 0.15 2.72 0.41 0.84 5.00 T<Td, 0>025 Channel Summary Permanent Lining: RipRap d50=15' (Class 1) Temporary Lining: Geometry, V-Ditch Depth (d): 2.Do feet Left Side Slope (zl) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 0,00 feet Channel Slope = 25.00 % SENT BY: MARSHALL MILLER ; 11-12-96 12:51PM; • 703 322 1510 => #2 BLANKETS North American Green Straw Erosion Control Blankets Thw S 150 blanket features a straw fiher matrix sewn belweerl two photo -degradable nets. The double net construction or the S 156 provides greater durability and effectiveness than the S'`S on 3:1 - 2: 1 slopes, and modcrat-05charge as1 50 The DS 150 ;tr,�w blanket provides a quick - degrading j ltern�itive to rhP S 150. Accefera.ed photo -degradable top and bottom netting assure lgl riktrl deterioration in 30 In 45 days. The DS 150 is F}r,rr(,c:t for fno(c` SCv re land5capint3 Ppplic,7tions where close mowing will occur Shortly after vegetation esiablishmem, S 15O/DS 150 Specifications Material Composition Straw, .. , .5 Ibs/sq yd (.27 kg/sq m) Net .. , , , liohtw6nht dens -ridable both Sides Thread cotton, bio-6egrc 0a0le S 1 SO/DS 150 Ralf Specifications Width, , . 6.5 fi (2 m) Length 83.5 ft (25.5 m) Weight • • 30 I05 (13•6 kgl Area • • • 60 sq yd (5 i sq ml SENT BY: MARSHALL MILLER ; 11-12-96 12:52PM; 703 322 1510 =} i i #3/4 INSTALLATION GUIDE Channels I . Prepare soil 0efore installing Vanket.s, irx:ludirlc.i �ippiicalion of lime, fertilizer, <inc_l st---d. 2, &—gin aL the Wfp of the channel by anchoring the blanket in a 6" deep x 6" wide trench. Biickfill and compact tho trcnrh �irtc'r stciplirig. 3. Roll ccnccr 01,'. Nket ir1 C ktUiUrl Of watc•r' flow can bC L wn of Channel. !.' f Iace blankets end over end (shingle style) with a 6" overlap, Usc �i rJouble row ut staggered staples 4" apart to %ec:ure blankets. kaflgih edge of b#ankets at top of side slope% must be anchored in 6" dt,teot x 6" It. 4vidt� frenCf ,, Sackfili and compau tf,,e trench after sraplincj. 6. Blankets on Side slopes must be overlapped 4" over, the center blank(°f rirKJ ,Stapled. 7, In mediurll/high flow channei applicalio ns, ai staple check slat is %r;commc,nded at 30 to 40 fow i 1 -a rnyn✓ `nF $t_ir51eS 4" ar,mrr nvcr rririre wicftil of the ch.inncl. PLice a second row ✓I.. below the firs: rove ir, a scaggerc,d patLeul. H Ihc,, tt-rmirial end of the, bLirikets rnust hc- r-inchorecl in a 6" d,c n x G" wide trCnc^. bzzckfill and compau the irerich after stapling. A Criticill Poinu s A. OVErIep% ,` nd SeamS C 8. Projected wait{°r line A C. Channel bottom/sid- � e � slope vcrtices. C NOTE: Honz<)ntA staple spiic:inq shnuld lit, IrGred if nece5sary to allow %t-iples to sm .ure Lhe Critic;7il Points along Lhe charnel srarfmc. REFER TO GENERAL STAPLE PATTERN GUIDE ON PAGE 16 FOR CORRECT STAPLE PATTERN RECOMMENDATIONS FOR CHANNELS. SENT BY: MARSHALL MILLER ; 11-12-96 12:52PM; 703 322 1510 => • e #414 STAPLE PATTERN GUIDE Staple patterns apply to all North American Green" erosion control blankets- Staple l' 011uns will vary depe.nding L Ipnn slope ength, slope grade, Soil type and average annual rainfall, The fallowing are general staple recommendations based on length of slope Ind slope grade. Specific staple placement patterns are illustnced in illustrations A, 3, C, and D. Increased staple rates may be hecess.9ry depEnding Upon site conditions. Fur speofic recommendations, contact your nearest authu;ieed Nurth American Green cllstribu;or or call North American Gruen technical services. 3. L A Me 'PIC CCsqyd Comp, Slope Defini % L 4' L I V sraplcs per sq yn 2 saples per sq. )1:. 3 5 s: eplgs per sq yp pkom:ED 5n9Rk psMarJ i 1 1 2.1 I'I -CrJ .va',N', rICM 31':vv Ln nlrI Cn ,nyl Slbpr Uadleli , A.$i :F. .. unmil. State of North C.lina Department of Environment, Health and Natural Resources 1 • • Division of Land Resources 1�P James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary �— • • • �• Charles H. Gardner, P.G.. P.E. Director and State Geologist November 12, 1996 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Chris Scott Vulcan Materials company P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 Re: Elkin Quarry Mining Permit No. 86-03 Surry County Dear Mr. Scott: - The initial review has been completed on the modification request your company submitted for the above referenced mine site. However, the following additional information is needed to continue processing your request: 1. Supporting design calculations are needed for the rip -rap channels located on either side,.of thesouthernsediment basin to ensure that the channels are adequate to pass a twenty-five year, twenty-four hour storm event. 2. Temporary diversion ditch liners have not been specified. Please specify the type of -temporary -liners-that -will be used and provide a stapling pastern for anchoring purposes, if anchoring is necessary. Approvable sediment control fabric will be required for silt fence construction. Also, stone outlets to prevent overtopping of the silt fence will.be required every two hundred feet. It will be recommended that steel post be used in lieu of wooden posts. In addition, gravel will be recommended for backfill material in installation of the silt fence. If you have any concerns about stipulating these items in the permit modification, please address your concerns in your response. Geological Survey Section Land Quality Section Geodetic Survey Section (919) 733-2423 (919) 733-4574 (919) 733-3836 FAX: (919) 733-0900 FAX: 733-2876 FAX: 733-4407 P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-3833 FAX 919-733-4407 An Equal OFpadunity Affirmative Action Employer 50%recycled/ 10%post-consumor paper CERTIFIED MAIL Mr. Scott Page Two It is my understanding that the road relocation is part of the mining permit modification and will remain part of the permit until the Department of Transportation (DOT) accepts responsibility of its maintenance. Therefore, Vulcan Materials Company will apply for a partial.release of the road and right of way when this occurs. If this is not the case, please clarify whether the road relocation is to be considered part of the permit area or not. As required by 15A NCAC 5B.0013, you are hereby. advised that you have 180 days from the date of your receipt of this letter to submit all of the requested information. If you are unable to meet this deadline and wish to request additional time, you must submit information, in writing, to the Director clearly indicating why the deadline can not be met and request that an extension of timebe granted. If an extension of time is not granted or if the additional information is not received by the deadline, a decision will be made ,to grant or deny the mining permit based upon the information currently in the Department's files at the endofthe 180 day period. Though the preceding statement cites the maximum time limit for your response, we encourage you to provide the additional information requested by this letter as soon as possible. Your .prompt response will help us to complete processing your application sooner. (- PLEASE BE ADVISED THAT THE MODIFICATION REQUEST CANNOT BE COMPLETED UNTIL THE ABOVE REQUESTED INFORMATION HAS BEEN RECEIVED. In order to complete the processing of your permit application, please forward two (2) copies of the requested information and the bond to my attention at the following address: Land Quality Section P. O. Box 27687 Raleigh, N. C. 27611 CERTIFIED MAIL Mr. Scott Paqe Three Please contact me at ( 919 ) 733-4574 if you have any questions. Sincerely, /Judith A. Wehner Assistant State Mininq Specialist Land Quality Section JW cc: Mr. Matthew Gant, P.E. L STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES •AT4 4 J;o In FAX TRANSMITTAL COVER SHEET DATE: �nn FROM: l Yam/ DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF LAND RESOURCES LAND QUALITY SECTION P.O. BOX 27687 RALEIGH, NORTH CAROLINA 27611 (919)-733 1574 FAX NUMBER. 733-2876 'TO: COMPANYIDEPART LENT: PHONE NO.: FAX NO.:�_ WE ARE TRANSMITTING 7 PAGES INCLUDING COVER SHEET. STATE OF NOR • OLINA O DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES �EHNR FAX TRANSMITTAL COVER SHEET DATE. - FROM. DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF LAND RESOURCES - LAND QUALITY SECTION P.O. BOX 27687 RALEIGH, NORTH CAROLINA 27611 (919) 733-4574 FAX NUMBER: 733-2876 COAFPANYIDEPARTMEN?• U 1 Y1 C , PHONE NO.: FAXNO.: WE ARE TRANSMITTING PAGES INCLUDING COVER SHEET. i Sediment Fence (Silt Fence) Reinforced, Any outlet where smnn now bypass occurs must be s nallized against Stabilized trends. Outlets Set nutlet clearing so met water depth cannot exceed 1.5 n at the lowest point ]oils the mnccline (Plgure 66sc). - Sir fabric height at 1 if mas1r mn be roan support pigs s spomrl In more - - than aftWss.1 I IPtor. .ml t trialo tmswvo - ea as an vna 1 uppo _Irm zV ash land as sbtsr. in l iaux GG2c Exacts, Sc. to.I ruL,far be j,le M1 Sela rair I ratri a f1 I .t Iccp,irnd - 5filing mrle, atas c.Thcfinishedan face e flbw 1prap seed it blend wile unans ar allowing no roefal. The area Seemed do pad line he amble Plaas"a �— 4' —1 �— B'ma+ —� slog Pyno tl.11 a '...1. a u. urn Figure 6.6Yc Perspective of reinforced, slight Ind outlet for sediment fence. •onstruction Dig a trnch arroximawly 8 inc'ees Imp and l incheswide,ofast much, in the line eftha fencr:u =,,-t In Fignm 662d. Drrvc posla smLlely, at lean IS iri her inm the Stimu , O i the dmvrislopc side of o-,e vench. Space pees a dammed It 8 It 11 raaca IssUpjs rat by wire, 6 n it pled, al ^A,1,1101 t il twir. u¢c Adjust spauny m pliee pea<at law points zlong ma foncnla e Panal mppmtwhefatcnm apslopesidcofi avanaing6inpas imo the tSnellas shn, R in I-ligarc.( fla Atli s. and joint,, pRi I I Iselin, 1 [- I l l.s sect or„ n !obese rt ,per tostsv ]ores pin then t post 6.6R 0 I Sat 6.62 Support wire Filter �pP F POs[18" =ln\� Compacted - deep min soil —III�IIIL—III_mn i Y u =IIII _IIII JN =_1= III= 6"wire 'I—IIII^IIII 6 III=111111� below ground —frit= min IIII=IIII�t Y 4„ with gravel Figure 6.62d Detail of sediment fence Installation. Place the bottom I It of fabric in 8-inch deep french lapping toward the upslope side. Backfill with compacted earth or gravel as shown in Figure 6.62d. To reduce maintenance, excavate a shallow sediment storage area on upslope side offence where sedimentation is expected. Providogood access to deposition areas for cleanout and maintenance. Allow for safe bypass of stone flow to prevent overtopping failure of fence. DO NOT install sediment fence across intermittent or permanent streams, channels, or any location where concentrated Dow, is antici. pated. 6.52.5 DATE TO,ASSDATE SUSi N r^ LOGGED IN RC ED MINING CHEjCKLIST FOR ROiT Company VU10 nI GAA Oh. Project Name _ Permit No. E/Yn�i/� County � Date Reviewer /all),Y nm/ Please make copies of check to include with Central Office and Field Office files and log in checks. * ❑ New ❑ Renewal odification ❑ Transfer ❑ Release ❑ Additional Information ❑ Fee Needed RECEIVED N.C. De,_:' yR Fee Received: Amount 4WO OCT 1 1 1996 Please route to:,,� �. Wf'n �,aH6Q11 Field Office Wildlife Resources Commission Archives and History SECTION Wiry :m Regionai iI i`'e /. /�O Date Routed �`I OY "' I�1 Date Routed / D �y 6 I / Date Routed Other: b of Date Routed Suspense Date for Comments: I%/n (Date received +30 days, not on weekend) 1 Please note the following: SCE AT' "CD CDMME.� *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 ii4ir .. ' i Rnl!�' DIVISION OF LAND RESOURCES LAND QUALITY SECTION November 5, 1996 M E M D R A N D U M TO: Judy Wehner .A/ FROM: Matthew Gantt, P.E./Vj� RE: Elkin Quarry Modification to Permit #/86-03 A review of the above -referenced mining permit was made on November 5, 1996. The following comments are noted: 1. There are many issues that need to be clarified s,yJ� regarding the relocation of SR 1142. After this road is constructed, will it be considered off -site sediment if sediment is lost onto the new DOT right-of-way? Who will be responsible for maintaining the sediment `controls on the DOT right-of-way? Erosion control measures shown on sheets 2 of 17 and 3 of 17 appear to be adequate. The same problems exist on sheet 17 of 17 q of the road relocation plan as do on sheet 5 of 5 of the permit modification plan (See comments #4, 5, and nm 6 below). 2. Sheet 2 of 5 - For the sediment basin on the south side of --the site, they either need to keep the full storage,. j capacity of the basin during all phases of construction, or stabilize all areas above the basin before it is filled in. 3. Channel calculations are needed for the 2' wide rip -rap channels on either side of the fill slope. They are not in Appendix "A". These channels are located on either side of the south sediment basin on sheet 2 of 5. I[4.) Sheet 5 of 5 - Specifications are needed for any proposed temporary ditch liners, such as excelsior or NAG 125, these were not provided. A stapling pattern will also be needed. 5. Sheet 5 of 5 - On the detail for the rock dam, the top Elkin Quarry November 5, 1996 width of the stone spillway should be a minimum of 51. 6. Sheet 5 of 5 - On the detail for sediment fence, all references to burlap must be deleted. Only an we�approvable sediment control�ric may be used_ Also, to�em use steel silt fence posts. The approval of wood posts will direct them to Lowers where they will purchase the ready-made silt fence. Excavated trenches for backfilling should be 8" x 8" and backfilled with gravel. 7. Sheet 2 of 5 - In the proposed settling pond construction area, stone outlets should be installed n..i' every 100' or so to dewater the areas behind the silt (V,U`I�1 fence. Past experience has shown that this is a good idea for long stretches of silt fence, in this case 1200'. 8. Comments have been obtained from Water Quality and Air p be found. I�checked with �them.thismmorning Vand they are stilltryingto find the plan. I will forward them to you as soon as I get them. I£ you have any further questions, please let me know. Vz1 North Carolina Wildlife Resources 512 N. Salisbury Street, Raleigh, North Carolina 27604-1188, 919-733-3391 Charles R. Fullwood, Executive Director MEMORANDUM To: Susan B. Edwards, Mining Progr`aln Secretary Land Quality Section From; David L. lxl�1ckrneier, District 7 Assistant Fisheries Biologist l c,w tu4r-r Date: 25 October 1996 Subject: Review of Mining Permit Modification for Vulcan Materials Company, Elkin Quarry - Permit No. 86-039 Surry County Staff field biologists of the North Carolina Wildlife Resources Commission (NCWRC) have reviewed the mining permit modification (Elkin Quarry - Permit No. 86-03) submitted by Vulcan Materials Company. A site visit was conducted on 24 October 1996. These comments are provided in accordance with certain provisions of the Mining Act of 1971 (as amended, 1982; (B.S. 74-46 through 74-68, 15 NCRC 5) and the North Ca wl .na General St atutes (G. S. 113-131 et seq.). We previously commented on this permit reqardinq its renewal in a memcrandum to your agency dated 23 January 1991. Vulcan Materials Company is now proposing to add 8.45 acres to the existing 230.07 acres previously permitted. The additional acreage consists primarily of forested uplands, much of which has been previously disturbed. In addition to the added acreage two new settling basins will be constructed in the floodplain of the Yadkin River. The new settling basins will incorporate the same wash water treatment system which is currently in place. Wash water is treated by sequential settling basins in a closed circuit recyclinq water treatment system. Water- is only discharged into the Yadkin River from the last of these basins during periods of heavy rainfall. A nationwide 404 permit has already been approved by the U.S. Array Corps of Engineers, and the North Carolina Department of Envirorirnent, Health, and Natural Resources (NCDEHNR) has issued the 401 certification. 4 , i 0 s Because the proposed expansion of the quarry consists of a relatively small area (8.45 acres)and the new settling basins are to be incorporated into the same closed circuit recycling system in which mirsimal sediment is discharged into the -Yadkin River, effects on fish and wildlife resources should be minimal. The impacts of the actual construction of the new settling basins in the floodplain of the Yadkin River should also be negligible provided the basins are constructed to withstand major flood events. Therefore, the NCWRC has no objection to the modification of this permit. During the on site inspection, it was recommended to Mr. Tim Hendrix (Elkin Quarry Plant Superintendent) that Mr. David Sawyer (District 7 Wildlife Biologist) be contacted to develop a plan to enhance wildlife habitat in disposal and berm areas in addition to current revegetation plans. Thank you for the opportunity to review and comment on this application. If you have any questions regarding these comments, please contact me at 91 G / 635--1263. cc: Ms. Stephanie Goudreau, Mt. Region Habitat Biologist Mr. Joe Mickey, District 7 Fisheries Biologist Mr. David Sawyer, District 7 Wildlife Biologist Mr. Chris Scott, Senior- Mining Engineer, Vulcan Materials Company State of North C•olina Department of Environment, Health and Natural Resources Division of Land Resources James B. Hun1, Jr., GovemOr Jonathan B. Howes, Secretary Charles H. Gardner, P.G., P.E. Director and State Geologist October 8. 1996 0 R 53w 4 PAM �w MEMORANDUM OCR, To: Ms. Stephanie Gaudreau _ #Ptc.,, Ioa Habitat Conservation Program Coordinator jm',., "G Wildlife Resources commission From: Susan B. Edwards Mining Program Slibretary `'•'FZZZ��pZL Land Quality Section Re: Mining Permit Modification Request for Vulcan Materials Company Elkin Quarry - Permit No. 86-03 Surry County Please find attached for your review a copy of the mining permit modification _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 November 7. 1996 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 cnrrrol 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 Ms. Judy Wehner at (919) 733-4574 if you have any questions. SEE Attachments cc: Mr. Matthew Gantt Geological Survey Section Land Quality Section Geodetic Survey Section (919)733-2423 (919)733-4574 (919)733-3836 FAX: (919) 733-0900 FAX: 733-2876 FAX: 733-4407 P.O. Box 27687. Raleigh. North Carolina 27611-1687 Telephone 919-733-3833 FAX 919-733.4407 An Equal Oppodunity Affirmative Action Employer 50%recycled/ 10%post-consumer paper DATE TO ASSISTANT LOGGED IN DATE TVVUSAN I AMUNG CHECKLIST FOR ROUTING / Company VU1ffla,?3 °I I �Gt70AA;AN.. Project Name #Ahkb. tdd/V✓'Ui Permit No. Ffn-Q�i County AA,_. t/ Date Received lodx9GV Reviewer Please make copies of check to include with Central Office and Field Office files and log in checks. * ❑ New ❑ Renewai/2 Modification ❑ Transfer ❑ Release ❑ Additional Information ❑ Fee Needed ❑ Fee Received: Amount d Please route to: �❑� / !NI✓1 $'l/!11 7H�kM Field Office Date Routed „© Wildlife Resources Commission Date Routed Archives and History Date Routed Other: nlC Date Routed Suspense Date for Comments: //� 19.E .(Date received +30 days, not on weekend) Plea -se note the following: *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 A MARSHALL MILLER & 20378 ASSOCIATES, INC. PHONE 322-5467 P.O. BOX 848 -� Q/- 68 54/519 BLUEFIELD. VA 24605 /O 19 8081 PAYTHE /J �AA r ,�/ / ;//�ORDER OF NL' ux C/)).nnn%%✓/Ti ,lP.-0/i 1�/ E'/rA]Zn�l �O LL A R S Ow�, Float Union National Bank F N° ,Ylq ma Bristol, VA rawgOtje9q-RMM;r 03 _ _ ki, A, i MFh T? State of North Aklina Department of Environment, Health and Natural Resources Division of Land Resources James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary Charles H. Gardner, P.G..,, P.E. Director and State Geologist October 8, 1996 MEMORANDUM 1•• ID FE R To: Ms. Stephanie Goudreau Habitat Conservation Program Coordinator Wildlife Resources Commission From: Susan B. Edwards Mining Program S€cretary Land Quality Section Re: Mining Permit Modification Request for Vulcan Materials Company Elkin Quarry - Permit No. 86-03 Surry County Please find attached for your review a copy of the mining permit modification 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. :5. 74-51 (2)). Please respond by November 7, 1996 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 i g rPr_nmmP_nded 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 Ms. Judy Wehner at (919) 733-4574 if you have any questions. e,np D olu Attachments cc: Mr. Matthew Gantt Geological Survey Section Land Quality Section Geodetic Survey Section (919)733-2423 (919)733-4574 (919)733-3836 FAX: (919) 733-0900 FAX: 733-2876 FAX: 733-4407 P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-3833 FAX 919-733-4407 An Equal Opportunity Affirmative Action Employer 50%recycled/ 10%post-consumer paper CHRIS scorn 5ENIpi MINING ENGINEER MI35A orvlvON • Wilmn v �m�a M M Materials Company October 81 1996 Mr. Tracy E. Davis, P.E., State Mining Specialist Land Quality Section 512 North Salisbury Street P.O. Box 27687 PWia;"h Vorth Carolina 27611 Dear W. Davis • WINSION5 LEM, NOFM CAHOLINA2?i I542x IELERHONE 010 7674660 RE: Modification to Permit No. 8&03 n.. __. Enclosed are two sets of the State Route 1142 relocation plans, four sets of the Mine Plan Revision and a $500 check for the processing fee, Ail sets are complete and contain narrative description, specifications and drawings. Thank you for your expedient review of these plans and please contact me should you have any questions. Sincerely, /%ors j-zW— Chris Scott Senior Mining Engineer ss cc: Mike Poplin Phil Dotson Tim Hendrix RECEIVED DEHNR LAND QUALITY SECTIOiv Elkin Quarry Surry County, North Carolina Permit No. 86-03 Mine Plan Revision Uulcon MMI(IIISCIM"'Y Table of Contents I. Property Map 2. Permit Map 3. Cross Sections 4. Reclamation Plan 5. Erosion and Sediment Control Details r .. ... ..... ... . . .. .... . .... ... ... .. I.= .. ... .... .... .. ..... . .... . .... .. .... . ..... lb, LZ 4 m mli z Nadi — ------ MEMO" ULdcan Elkin Quarry Modification To Permit #86-03 Vulcan Materials Company October, 1996 Preparedfor: Vulcan Materials Company Mideast Division P.O. Box 4239 Winston-Salem, North Carolina 27115-4239 Prepared by: Marshall Miller & AssociatesL Bluefield Virginia industrial Par] P.O. Box 848 Bluefield, Virginia 24605-0848 RECEIVED DENNR aCT 0 1995 ND QUALITY . , x.IT\r! ctl� I Table of Contents I. Cover Page II. Letter of Transmittal III. Narrative CV. North Carolina Mining Permit Application V. Erosion and Sediment Control Plan VI. Appendices Appendix A Erosion & Sediment Control Computations Appendix B Construction Specifications and Maintenance Plans Appendix. C SR1142 Relocation - NCDOT and Surry County Approvals Anne..tidix D Annrnved Wetlands Permits Vf1. Maps Cover Page 1. Property Map 2. Permit Map �. Cross -Sections 4, Reclamation Map 5. Erosion & Sediment Control Details GEOLOGY ENGINEERING GEOPHYSICS October 4, 1996 Mr. Chris Scott, Senior Mining Engineer Vulcan 11flaterials Company P.O. Box 4239 Winston-Salem, NC 27115 RE. Elkin Quarry Mine Plan Revision Projecr No. PR31 Dear Chris: Enclosed is the mine plan revision for Permit Number 86-03, Elkin Quarry. This package is, we believe, comprehensive and addresses all the facets of the proposed mine plan. We appreciate the opportunity to have assisted you with this plan. We await any questions or comments which you or the North Carolina Department of Environment, Health and Natural Resources may have. Sincerely, Marshall Miller & Associates e Philip R. Bailey, P.E. Civil Engineer ' ejw Enclosures Bluefield Virginia Industrial Pork / P.O. Boy 848 / Bluefield. VA 246051 Tel 540.322.5467 / Fax 540.322.5460 Narrative Site Description Elkin Quarry, Permit No. 86-03, is a granite quarry ovmed and operated by Vulcan 1 Materials Company (VMC). The site is located just east of Elkin, North Carolina and is accessed by both Highway 268 and State Route 1142 (SRI142). (Refer to the Vicinity 1 Map on the cover sheet of the Design Plans). ■ The existing permitted acreage is 230.07 acres. This mine plan revision requests ' an additional 8.45 acres be added to the permit. Tbis additional acreage will be used primarily for the SRI 142 relocation and a portion, in the future, will be utilized I'm' ' stockpile, plant, or shop area. (Refer to the Property Map). Currently, SR1142 bisects the site north -south. Design plans have been approved by the North Carolina Department of Transportation and the Sorry County Commissioners ' to relocate SRI.142 to the western boundary of the site. (Refer to Appendix C for approvals). The Erosion & Sediment Control Plan for the relocation is being submitted simultaneouslywith this mine plan revision ' The site is in the Yadkin River Basin and lies just north of the river. A jurisdictional determination and nation-wide permit, Section 404, have been prepared and approved by the U.S. Army Corps of Engineers. Also, the Nortb Carolina Department of Environment, Health and Natural Resources (NCDEHNR) have issued the 401 ' Certification. (Refer to Appendix D for the 404 and 401 Certifications). Project Description The purposes of this revision are to gain access to additional reserves by expanding the quarry and to enlarge the stockpile and processing area. Adiacent Property ' Land adjacent to the permit boundary is predominantly undeveloped woodland. Some single unit residential structures are located around the site. 71ne closest dwelling to any existing excavation is 600 feet and to any proposed excavation is 800 feet. Woodlands surround the disturbance and will be retained to provide a vegetative screen. As pan of the SRI 142 relocation construction, a five-foot screening berm will be built. As the quarry expands, the overburden disposal berth along SRI 142 will provide f additunal screecUJg. A three -strand barbed wire fence with warning signs at 100-foot spacing shall be ' constructed around the quarry limits to provide a warning of caution to any intruder. ' Site Access Can'ently, the site is accessed from Highway 268 and SR 1142. "fhis will remain as the access to the site. The existing office and scales are not planned to be moved. Ouarry Expansion ' "Me proposed quarry expansion lies to the west and north of the existing quarry pit. Prior to commencing with expanding the quarry, SRI 142 must be constructed and traffic routed on the new section. The construction of SRI 142 requires more fill than cut. Therefore, a borrow area will be utilized and is shown on the Permit Map. During SRI 142 construction, a rock dam, as shown on the Permit Map, will be used to control sediment laden runoff from the borrow area. Once SRI 142 is relocated and the quarry expansion begins, runoff from the expansion will either flow into the existing quarry pit or the borrow area rock dam Therefore, this rock dam «711 be maintained until the quarry expansion reaches its 1 southwest limit. Once the quarry is expanded to its southeast limit, all drainage from overburden removal operations will flow into the quarry pit. The proposed overburden disposal berm will be constructed in phases over the next ten years as overburden removal operations continue. Runoff from boor the interior and exterior slopes of this berm will be diverted back to the quarry pit for treatment. Temporary conveyance channels and 24-inch HDPE pipes will be utilized to carry runoff from the exterior slopes back to the quarry pit. These temporary measures will be ' installed at each SR1142 culvert, at a minimum. The riprap conveyance channel has been designed to carry the full runoff capacity along the entire berm. Once the berm is finished ' and the slopes are permanently stabilized, flow will be sent from the exterior conveyance channel to each culvert under SR1 142. Culverts will be utilized to make this conveyance of flow. The sediment pond to be constructed prior to SRI 142 and located in the western corner of the pen -nit will be maintained during the quarry expansion and overburden berm construction. This pond will serve as a polishing pond prior to any runoff leaving the site. .Gnrknily and Frnrevvinu Area Currently, the stock ile/ rocessin area consists of 23 acres of which a large Y T p g g portion is used for settling ponds. This revision proposes to relocate the settling ponds south of Highway 268 and the area north of Highway 268 will be utilized for stockpile and plant area. Construction of the settling ponds will create minimal land disturbance. The area is flat and flow to a central sediment structure will be difficult to achieve. Therefore, we propose to use a silt fence since the construction duration from initial ground breaking to revep-etation will only be two to four weeks. Y Once the new settling basins are constructed, then fill will be placed over the existing settling basins. A rock dam is proposed to control runoff from this filling operation. The fill material will be generated from the quarry expansion operation. ■ 1 u NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, ANII NATURALL Rrcntrur_r_c 1 LAND QUALITY SECTION APPLICATION FOR A MINING PERMIT (PLEASE PRINT OR TYPE) 1. Name of Mine Eikin Quarry County Surry 2. Name of Applicant* Vulcan Materials Company 3. Permanent address for receipt of official mail** PoSi 01auc BuA. 4239 ' Winston-Salem North Carolina 271.15 Telephone (910) 767-4600 ' 4. Mine Office Address _Pot Elkin, North Carolina 28621. ' S. Mine Manager Telephone (910) 835-1439 ' 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 facts will be cause for permit revocation. 1 '�**Signature CJA41� o--AM/r"l Date __�O-3 1. ' Print Name Lamar Brannon ' Title Controller- Mideast Division * This will be the name that the mining permit will be issued to and the name that must be indicated on the Leciamation 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. 74-31 provides that the Department shall grant or deny an application for a permit witbin 60 days of receipt of'a complete application or, if a public hearing is held, within 30 days fallowing 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. Attached additional sheets as needed. IAPPLICATION 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 MENE Answer all of the following that apply: b. 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 "anew permit" fee will be based upon): Of this acreage, how much is owned and how much is leased? Acres owned: leased: Property owner if leased: If this is an application for RENEWAL of a mining permit, uidicate 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 miiring permit, indicate the mining permit number and the total (overall) acreage covered by the existing permit: Mining Permit No. 86-03 Total penmitted acreage: 230.07 Does the modification involve acreage within the previously approved permitted 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): >50 Acres Does the modification involve acreage outside the previously approved permitted boundary? Yes X No Lf yes, indicate the additional acreage to be covered by this modification: 8.45 (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 ` wdisturbed" 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) 8.45 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:. Mininp-l'ernit No.: Total permitted acreage: T ■ SEE THE FEE SCHEDULE AT THE END OF THIS FORM FOR 'rHE T' PROPER FEE AMOUNT rTO BE PAID FOR THE REQUESTED PERMIT ACTION(S) AND CORRESPONDING ACREAGE NOTED ABOVE t I Indicate the approximate longitude and latitude, in degrees -minutes -seconds, of the center of the mine site: LONGITUDE (dd-mm-ss): W 80 48 -- 48 Quadrangle: Elkin North_ LATITUDE (dd-)nm-ss) N 36 -- 15 -- 33 Name of all materials mined: Granite 1 1 1 1 1 1 1 1 1 1 i 1 I I IAPPLICATION FOR A MINING PERMIT 4. Mining method: Hydraulic Dredge _Front-end Loader & Truck Shovel & Truck. X Dragline &. Truck __Self -loading Scraper Other (explain) 5. a. Expected maximum depth of mine (feet) 400'+ Reference elevation: 9501+ b. Expected average depth of mine (feet) 375'* 6. Has any area(s) at this site been mined in the past? Yes X N ___If no, proceed to Question a. Acreage of previously affected land(s) at present site that has not been reclaimed: 60 acres (identify all areas on you mine map(s)). b. When and by whom was this activity conducted? Prior to and since 1970 by _Vulcan Materials Company_____ c. Acreage of previously affected land at present site that has been reclaimed: _ 0 acres (identify all areas on your mine map(s)). d. When and by whom was this activity conducted? e. Do you wish to exclude any areas noted in 61 or c from this permit application Yes No If yes, how much acres (identify all areas on your mine map(s)). 7. Present (pre -mining) use of the land (estimate acreage for each): Cropland 42 acres Pasture acres Forestry 142.22 acres FishlVJildlife acres Recreation acres Other 54.3 acres (Specify use: Active Mine S. Proposed land use after mining and reclamation has been completed (estimate acreage for each): Cropland 42 acres Pasture 24.3 acres Forestry 72.22 acres Fish/Wildlife 100 acres Recreation acres Other acres (Specify use:____ 9. Number of years for which the permit is requested (10 year maximum): 10 B. MAPS Four (4) copies of the comity highway maps and four (4) copies of all mine maps and reclamation maps shall be submitted with each permit application County highway maps may be obtained from: Location Department State Highway Commission Raleigh, North Caroliina 27602 (919)733-7600 Clearly label and mark the location of your mining operation on the county highway maps. -3- APPLICATION FOR A iNM7ING PERINUT 2. Mine maps must be accurate and appropriately scaled drawings, aerial photographs or enlarged topographic maps of the entire mine site. All aspects of the amine site must be clearly labeled on the maps along with their corresponding (approximate) acreage. As a reminder, mining permits can only be issued for up to 10 years, thus, all mine and reclamation maps must only denote those activities that are intended to be conducted during the life of the mining permit. All maps must be of a scale sufficient (see minimum requirements Listed below) to clearly illustrate the following, at a minimum: 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. Existing or proposed permit boundaries. c. Initial and ultimate limits of clearing and grading. d. Outline and width of all buffer zones (both widisturbed and unexcavated). e. Outline and acreage of all pits/excavations. f. Outline and acreage of all stockpile areas. g. Outline and acreage of all temporary and/or permanent overburden disposal areas. li. Location and acreage of all processing plants (processing plants) may be described as to location and distance from mine if sufficiently far removed). i. Locations and names of all streams, rivers and lakes. J. Outline and acreage of all settling and/or processing wastewater ponds. k. Location and acreage of all planned and existing access roads and on -site haul roads. 1. Location of planned and existing on -site buildings. m. Location and dimensions of all proposed sediment and erosion control measures. n. Location of 100 year floodplain limits and wetland boundaries. o. Names of owners of record, both public and private, of all adjoining land. p. Map legend: I. Name of applicant 2. Name of mine 3. North arrow 4. County 5, Scale G. Symbols used and corresponding names 7. Date prepared and revised 8. Name and title of person preparing map Map scales must, at a minimum, meet the following guidelines: PERMITTED ACREAGE, MAP SCALE 0-99 Acres 1 inch = 50 feet 100-499 Acres i inch = 100 feet 500+ Acres 1 inch = 200 feet I ' APPLICATION FOR A MINLVG PERMIT A table/than must be provided on the mine map that clearly fins the approximate acreage of tailingi/sediment ponds, stockpiles, waste piles, processing area/haul roads, mine excavation and any other major aspects of the mining operation that is proposed to be affected/disturbed during the life of the mining permit. A table/chart similar to the follomug will be acceptable: - CATEGORY AFFECTED ACREAGE Tailings/Sediment Ponds 9.0 acres StodTilesfNocessing Area 23.0 acres Mine Excavation _ 53.0 acres Overburden Disposal 28.0 acres Other 125.0 acres _ NOTE: IN ADDITION TO THE ABOVE, THE MAPS MUST ALSO INCLUDE ANY SITE - SPECIFIC INFORMATION THAT IS PROVIDED IN THE ANSWERS TO THE FOLLOWING QUESTIONS IN THIS APPLICATION FORM (PLEASE NOTE THE ITALICIZED QUESTIONS/STATEMENTS THROUGHOUT THE FORM). TENS APPLICATION WILL NOT ' BE CONSIDRED COMPLETE WITHOUT ALL RELEVANT ITENIS BEING ADEQUATELY ADDRESSED ON THE MINE MAPS. ' SECTIONS C D AND E OF THIS APPLICATION FORM ARE ON FILE FROM THE PERMIT RENEWAL APPLICATION MADE 12-31-90 AND APPROVED 11-12-91. DRAWINGS AND SUPPLEMENTAL NARRATIVES REQUESTED .IN THESE SECTIONS, \VHICH ARE PERTINENT TO THIS MODIFICATION REQUEST, ARE PROVIDED. -o-, -7-, -5-, -u-, - l G•-, -11-, - l 2-, -13-, -14-, -15- IAPPLICATION FOR A N]INING PE10,11T ' F. NOTIFICATION OF ADJOINING LANDOWNERS I'lie 'Notice" form, or,a facsimile thereof, attached to this application must be sent certified or registered r11ai1 to '311 whn nra ndininina (rnntiaunnc tnl thn nrrmit hnnnrinriac tic inr1;VAt0d1 nn thn mine map(s). The only exception to the above is if another means of notice is approved in advance by the Director. DiNrision of Land Resources. ' A -copy of a tax map (or other aitemative acceptable to the Department) must be mailed with the completed 'Notice" form (the proposed overall permit boundaries and the names and locations of all owners of record and land adjoining said boundaries must be clearly denoted on the tax map). ' 'llie `.`Affidavit of Notification" attached to this application must be completed, notarized and submitted to tile e Department, With the remainder of the completed application form, before the application will be iconsidered rorttplete. Q TH:IS SECTION i1iUST BE COMPLETED FOR ALL APPLICATIONS FOR NEW MINING PERMITS AND FOR PERMIT MOD 1FICATIONS THAT ADD ADJACENT LAN I) `1'O A MIN I:NG PERI♦I 1T. ® SEE THE NEXT TWO PAGES FOR THE, "NOTICE" FORM AND THE "AFFIDAVIT OF NOTIFICATION" _)6_ INOTICE IPursuant to provisions G.S. 74-50 of The Mining Act of 1971. Notice is hereby given that Vulcan Materials Company has applied on _ 10-8-96 (Applicant Name) (Date) to the Land Quality Section; Division of Land Resources, North Carolina Depart of Environment, Health, and Natural resources, P.O. Box 27687, Raleigh, North Carolina 27611, for (check. one): (a) a new surface mining permit (b) a modification to add adjacent land to an existing surface mining permit X "I11e applicant proposes to mine Granite on 238.52 acres located (Mineral, Ore) (Number) East of _ Elkin, North Carolina (Miles) (Direction) (Nearest Town) off/near road I-Eghway 268 in Surry County (Road Nurnber/Nanre) (Name of County) ' * SEE AYI'AC,HED i<tAP FOR PROPOSED PERMIT BOUNDARIES AND CORRESPONDING ADJOINING LANDOWNER NAVIES AND LOCATIONS* In accordance with G.S. 74-50, the mine operator is required to make a reasonable etfort to notify all owners of record of land adjoining (contiguous) to Elie proposed mine site (pemlit bowrdaries), and to notify the chief administrative officer of the cowrty or mwricipality in which the site is located. Any person may file written comment(s) to the Department at the above address within thirty (30) days of the issuance of this Notice or the filing of the application for a permit, whichever is later. Should the Department determine that a significant public interest exists relative to G.S. 74-51, a public hearing will be held within 60 days of the end of the 30-day comment period specified above. A copy of the permit application materials are on file and available for public review during nonnal business I hours at the above listed address as well as at the appropriate regional office. For further inforrnation call (919) 733-4574.. !'lease note that the Department will consider a relevant written comments/documentation within. I the provisions of the Mining - Act of 1971 th.rou_ lout the application review process until' a final decision is made on the application. Dennis Thompson, P.O. Box 706, Dobson, NC 2701.7 -_ (Addressee's Name and Address) ' 10-8-96 - - — (Date of Issuance of this Notice/Mailed to Addressee) I Vulcan Materials Compare _ (Name of Applicant) P.O. Box 4239, Winston-Salem, NC 27115 (Address of Applicant) -I?- NOTICE Pursuant to provisions G.S. 74-50 of The Mining Act of 1971, Notice is hereby given that Vulcan Materials Company has applied oil 10-8-96 to the Land Quality Section, Division of Land Resources, North Carolina Depart of Environment, Health, and Natural resources, P.O. Box 27687, Raleigh, North Carolina 27611, for (check one): (a) a new surface mining permit __ (b) a modification to add adjacent land to an existing surface mining permit X The applicant proposes to mine Granite on 238.52 acres located t — (Mineral, Ore) (Number) I East of Elkin, North Carolina (Mlles) (Direction) (NearestTown) ' of hear road Highway 268 in Surry Count__ (Road Number/Name) (Name of Comity) ' a SEE ATTACHED MAP FOR PROPOSED PERMIT BOUNDARIES AND CORRES POND LNG ADJOINING LANDOWNER NAMES AND LOCATIONS* ' In accordance with G.S. 74-50, the mine operator is required to make a reasonable effort to notify all owners of record of land adjoining (contiguous) to the proposed mum site (permit boundaries), and to notify the chief administrative officer of the county or municipality in which :he site is located. Any person may file written ' comment(s) to the Department at the above address within thirty (30) days of the issuance of this Notice or the filing of the application for a permit, whichever is later. Should the Department determine that a significant public interest exists relative to G.S. 74-51, a public hearing will be held within 60 days of the end of the 30-day ' comment period specified above. . 1 A copy of the permit application materials are on file and available for public review during normal business horns at the above listed address as well as at the appropriate regional office. For further information call (919) ' 733-4574. ,Please note that the Department will consider any relevant written comments/documentation within the provisions of the Mining Act of 1971 throughout the application review process until a final decision is made on the application. - ' M. H. Greenwood Heirs, 2845 Silas Ridge Rd., Winston-Salem, NC 2710_6_-5000 ' (Addressee's Name and Address) t04-96 ' _ (Date of Issuance of this Notice/Iviaited to Addressee) Vulcan Materials Company _ ' (Name of Applicant) Box 4239, Winston-Salem, NC 271 i5 _P.O. _ (Address of Applicant) ' -17- NOTICE Pursuant to provisions G.S. 74-50 of The Miffing Act of 1971, Notice is hereby giveu that Vulcan Materials Company — (Applicant Name) has applied oil Me. (Date) to the Land Quality Section, Division of Land Resources, North Carolina Depart of Environment, Health, and Natural resources, P.O. Box 27687, Raleigh, North Carolina 27611, for (check one): (a) a new surface mining pennit — (b) a modification to add adjacent land to an existing surface mining permit X TIIe applicant proposes to mine Granite on (M.ineral, Ore) East of (Direction) 238.52 acres located (Numher) Elkin, North Carolina (Nearest Town) off/near road Highway 268 in _ Surry County (Road Number/Name) (Name of County) * SEE A'I"I'ACHED MAP FOR PROPOSED PERMIT BOUNDARIES AND CORRESPONDING ADJOINING LANDOWNER NAMES AND LOCATIONS* In accordance with, G.S. 74-50, the mine operator is required to make a reasonable effort to notify all owllers of record of land adjoining (contiguous) to the proposed mine site (permit boundaries), and to notify -tile chief administrative .officer of the county or municipality in which the site is located. Any person may file written comment(s) to the Department at the above address within thirty (30) days of the issuance of this Notice or the filing of the application for a permit, whichever is later. Should the Department determine that a significant public interest exists relative to G.S. 74-51, a public hearing will be held within 60 days of the end of the 30-day comment period specified above. A copy of the permit application materials are on file and available for public review during normal business hours at the above listed address as well as at the appropriate regional office. For further information call (91.9) 733-4574. Please note that the.Department will consider any relevant written comments/documentation within ' the,provisions of the Minim Act of 1971 throughout the application review process until a final decision is made on the avollication. ' Gordon M. Gambill, 314 Pegram Street, Elkin, NC_ 28621 (Addressee's Name and Address) 1 . 10-8-96 --- — -- - ---- - --- --- - - (Date of issuance of this Notice/Mailed to Addressee) Vulcan Materials Company _— (Name of Applicant) 1 _ P.O. Box 4239, Winston-Salem, NC 27115 (Address ofAppiicant) APPLICATION FOR A MIiNING PERMIT 'I, Chris Scott AFFIDAVIT OF NOTIFICATION an applicant, or an agent, or employee of au applicant, for a new Mining Permit, or a modification of an existing Mining Permit that adds adjacent land to the Mining Permit, from the N.C. Department of Environment, Health, and Natural Resources, being first duly sworn, do hereby attest that the following are known owners of record, both private and public, of the land adjoining the proposed mining permit boundaries and that notice of the pending application has been caused to be mailed, by certified or registered mail, to said owners of record at their addresses shown below, such notice being given on a form,,.(,provided by the Department: gyq�w (Adjoining Landowner Name) (Address) � � M. H. Greenwood Heirs 2945 Silas Ridge Rd., Winston-Salem, NC 27106 a Gordon M. Gambill 314 Pegram Street, Elkin, NC 28621 (Attach additional list if necessary) f do also attest that the following individual is the chief administrative officer of the comity or municipality in which the proposed mining site is located and that notice of the pending application has been caused to be mailed, by certified or registered mail, to said office at the following address: �t/ (Chief.4daliuistrative Officer Name) (Address) (V Iylr. Denuis'Dtompson, County Manager RO, Box 706, Dobson, NC 2701 __ The above attestation was made by me while under oath to provide proof satisfactory to the Department that a rer,sonable effon has been made to notify the owners of record of the adjoining land and the chief administrative officer of tine county or municipality in compliance with N.C.G.S. 74-50 and 15A N.C.A.C. 513 .0004(d). I understand that it is the responsibility of the applicant to retain the receipts of mailing showing that the above notices were caused to be mailed and to provide them to the Do p rtmen t u on request 10-8-96 --. _...—._ "Tft� — --_ Date Signature of Applicant If person executing Affidavit is an agent or employee of an applicant, provide the following infonna6mi: (Name of applicant) Vulcan Materials Company___ (title of person ex^cutice a Notary Public of the County of State of North Carolina, do hereby certify /n� rr that ('hri personally appeared before me this day and wider oath acknowledged that the above Affidavit was made by him/her. ,/ / p Witness my hand and notarial seal, this �5 .lay of DC Ta , 19 — Notary ----'------ My Commission expires: C;Lo o .l- ME 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 investigarions as may be reasonably required in the administration of the Mining Act of 1971. ' We further grant to the Department or its appointed representatives the rigid 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 our reclamation which the operator has failed to complete in the event a bond forfeiture is ordered ' pursuant to G.S. 74-59. LANDOWNER: APPLICANT �I®� ' Signature ,4Lt,ei. l�V—�lN.nv/s^� Signature* � /�Uyt�u�� Print Name: Lamar -Brannon Pint Name: Lamar Brannon Address P.O. Box 4239 Title: Controller - Mideast Division ' Winston-Salem, NC 27115 Company: Vulcan Materials Company ' Telephone 910-767-4600 _ Mine Name: Elkin Quarry ' *Signature must he the same as the individual who signed Page I of this application. -Four d copies of the completed applications four_ 4 cotties of all mine maps and reclamation maps, and ' the appropriate processing fee (see next page for fee schedule) in the form a check or money order payable to the North Carolina Department of Environment, Health, and Natural Resources must be sent ' to the Land Quality Section Central Office at the address listed on the front cover of this application form. Inquires regarding the status of the review of this application should be directed to the Mining Program staff at(919) 733-4574. -19- MINING ' "A nomefundable permit application processing fee is required when filing for a new mining permit, a major permit modification or a renewal permit as follows: 1 TYPE ACRES"* NEW PERMIT MAJOR RENEWAL 'MODIFICATION Clay 1 but less than 25 S300 $250 5250 25 but less than 50 1000 500 500 ' 50 or more 1500 500 500 Sand & Gravel, I but less than 5 150 100 100 Gemstone, and 5 but less than 25 250 100 100 Borrow bits 25 but less than 50 500 250 500 50 or more 1000 500 500 Quarry, Industrial 1 but less than 10 250 100 100 Minerals, Dimension 10 but less than 25 1000 250 500 ' Stone 25 but less than 50 1500 500 500 eo or more 2snn 500 500 ' Peat & Phosphate I or more 2500 500 500 Gold (neap Leach), I or more nncnn ew 500 500 Titanium & Others •A amrcfadable 550.00 permit application prucemmg fee is required for miam permit modifmaum% Mwar pmmil wid�C' ualiws include manmhN vareroa, nme Aagm, lend midi m ame atl permit rmcwsbs there the mme is mamire aid fully sabiliad. A minor perma moti icutmt alma madoda laid added to a penniud arm, autade o''dne mmirn u perait b or avc rmuir®m:a, where no plan fa mining relmd disturbance of We added lad have berm approvd All aher dmyv ere cmmdvd m inor m:.linatima. •'Arns fam.-n ramval al timid Ana fa major moms Wal ac- m' lad a(1'med by me mMifimnim ied minced rgoerratim mikausmcaathetdal o belie ie winhm dncpermiud mine art, m ay additional Lmdthm u m be dsturbed aid added m at eostingpenmiud:vet, acme oiu nrbM. ' 1 3NJ 1 1 1 -20- LAND QUALITY JEl.11"ON HEADQU.-11(TEJRS N,,.K J.-. rl - aI,I -0Im ,.- ,air 00)nS,e;J 511 N.Mha &,,e ,. nxa(99) 1na376 1'U. 143,]768] Snewn.. ReliANC 27611 _ �� mrt b L ,SfltI &D.. I o.._ t11 1 lm.uvxd'. Mmw6 LAND QUALITY SELI ION HEADQUARTERS 19LLE 'MO43RNIVML2 eINSANI.SlII 'S I•J:. JERRY CUCF U 1R,LMCH UIN IS P 9 19 mJ, Mai S6aC d ]SW Eartw EN", 11 NC 29115 1•0 oor976n7 E_ lI(I aS .I>C 27106 Rei1T. NC 21611 148 - LICE 6) 9.Ile) f. C)1P� ('8) (9 9 -.1 917M (55) J_ (N)6E3N40 I'H Y 11911 a96 IM5 C J11-11P L N,W .Vm a WSd'.nuM hmJ.eu Imhv4 o',III III (Ile w..� RmkLipluw III NvL J=V%', �md &,JY 1 N 1 I'ussn M[DoNI Wim WJL,IL IX I— "A.. V ROLe'Td 6Waw -r_I,lw 1 MI >Oui Yxv..v PAYETfBViLLE WIMING ohf W4SHIIIII pC CL\SS.CL IP.>'SfiMS. I II, IIUY D WILL!AMS. PO da W1 121i=.duial N.iA. 1424 Ca ,Nv 51u 714 11 11mell. , NC 2WI95-3w ,,911 ILL J1SS9 4av¢.+91gNC MEN COp�GR-Wa645 O'1-0I - (010)JA'rlPl(fp L >(n) ( 19J6 II1U6) ON: u;mvS6u.U�1 AX061 J) 35Y20w I tt,I t19)111 3116 I1113ILL [I n ml.e .. �Lt. u1w• ia. a . C1Iy1l bss - lPcUnyu�N olh r ':Jim ^Imk ounk.^c a. ➢ uIII O*'.0 J _n;'w Wle,mm u. Erosion and Sediment Control Plan The erosion and sediment control principles for this project are to simply convey runoff and to collect and treat any sediment laden runoff prior to discharge from the site. The North Carolina Erosion and Sediment Control Planning and Design Manual has been adhered to and used for guidance during the development of this plan. All structures are designed based on the 25 year-24 hour storm event. The main erosion and sediment control structures for this project are rock dams and conveyance channels. Silt fence (Practice 6.62) will be used in isolated instances wl_+ere Innd dicmrhance is minimal and the time duration is short. Slone drains (Practice 6.02) and temporary sediment traps (Practice 6.60) have been included in the design, in case, the need may arise for a temporary measure during construction. *Peak Runoff Runoff is mmputed nsing the. rntional method, Q—GA where- , Q = Peak rate of runoff in CFS C = Runoff Coefficient Ii = Intensity of rainfall in inches/hour A = Drainage area in acres The runoff coefficient C, for this project was chosen to be 0.50 due to the nature of mining operations and the disturbance duration. Assuming C = 0.50 throughout all the design calculations is a conservative measure which adds factor of safety to the drainage structures. A short time of concentration, five minutes, is assumed for all drainage areas. This 1! is another conservative assumption which adds adffitinnal factor of safety. ' •Rock Dam (Practice 6.63) ' Rock dams are utilized on the project to treat sediment laden runoff prior to discharge from the sight. The basin volumes are based on I900 cubic feet of storage for each acre of drainage area. (Rock Dams 002 and 003 are exceptions, they are sued based t7�J� on disturbed drainage area.) The spillways are sized to pass the 25 year - 24 hour storm. The embankments have a minimum width of 5 feet with the upstream slope at 2:1 and the downstream slope at 3:1. Embankments shall be underlain by a 2 foot by 2 foot cutoff e trench. The rock embankment shall be constructed of stone with a minimum d5o = 9" and the upstream face shall be covered with a NCDOT 057 none filter layer. ' Trap efficiency has been designed so as to prevent short circuits from inlets to outlets and the detention time is at least 8 hours. The surface area is sized to provide 0.01 acres per CFS of runoff. *Conveyance Channels (Practice 630 and 6.31) The conveyance channels are sized based on the 25 year - 24 hour storm. The channel dimensions are evaluated for capacity and velocity (based on the design retardance class). Then they are evaluated at a retardance class one higher than design to account for vegetative growth and debris build-up. Once the dimensions are established then the temporary lining is designed. Channel linings for this project are grass, riprap and one 1 steep slope channel is grouted riprap. The grass lined ditches have temporary linings of either jute net, straw with net or synthetic mat. Channel linings are designed using the Tractive Force Procedure. I•Culverts The culverts are designed to pass the flow from a 25 year - 24 hour storm. Culvert ' designs are based on Manning's "n" values for corrugated metal pipe. The design procedure consists of computing both the inlet control flow and the pipe control flow to determine which is the critical parameter. Once the critical parameter determined then the culvert is sized to prevent overtopping of the inlet embankment by the design storm. ' Rock riprap energy dissipators (Practice 6.41) are designed for the pipe outlets to prevent excessive erosion. •Temporary Seeding (Practice 6.10) 1 Temporary seeding is to be applied to all disturbed areas where work is delayed for ' a period of more than 30 days but not more than one year. �'cx . aroma •Permanent Seeding (Practice 6.11) Permanent seeding is to be applied on areas which have been brought to final grade or areas which are rough graded and will not be brought to final grade within a year or more. ,Vegetative Screen - Trees. Shrubs. Vines and Ground Covers (Practice 6.13) Trees, shrubs, vines and ground covers shall be used in areas where a vegetative screen is necessary. And existing vegetation does not exist. •Land Grading (Practice 6.02) All out and fill slopes in unconsolidated material will be no steeper than 2:1 with a 10 foot horizontal bench at each 30 foot elevation interval. Cut slopes will be fine graded immediately after rough grading and will be vegetated according to the Vegetation Plan. As the disposal areas are created, the material shall he placed in even layers and compacted. Vegetative measures shall be applied according to the Vegetation Plan and the regulations set forth for temporary and permanent seeding. ,Tree Preservation and Protection (Practice 6.05) Trees and otter vegetation will be preserved as much as possible for their screening, landscape and erosion protection value. Append& A Erosion & Sediment Control Computations Channel - Overburden Disposal Berm Drainage Area = 7.60 Acres Runoff Coeficient = 0.37 Time of Concentration = Minimum Rainfall Intensity Bailor (inlhr)= i25 = 8.00 Peak Runoff (cfs) = Q25 =22.19 Classification: Temporary Geometry: Trapezoidal Soil Class: Erodible Permissible Velocity (Vp) = nla Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 6.00 Channel Slope = 8.69 i100 =10.00 Q 100 = 27.74 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (Cfs) (lb/cu ft) Comments 1.00 RipRap d50=12" (Class!) (Td = 4.0) 0.73 5.71 0.0780 0.57 3.89 2.24 22.23 3.96 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=12" (Class I) Temporary Lining: Geometry: Trapezoidal Depth (d): 2.00 feet Left Sioe Slope (z1) = 2.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 6.00 feet Channel Slope = 8.69 % CH-ODB. WKS Rock Dam - Stockpiles Drainage Area: Total Area = 11.00 Acres Total Disturbed Area = 11.00 Acres Runoff Coeficient = 0.30 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i10 =5.00 Q5 =8.00 i100 =10.00 Peak Runoff (cfs) = Q10 =16.50 Q25 =26.40 Q100 =33.00 Embankment Dimensions: Top Elevation = 900.0 Feel Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 898.0 Feet Bottom Width = 4.00 Feet Depth = 2.00 Feet Side Slope (Z:1) = 2.00 Basin Volume Required Volume = 19,800 Cubic Feet Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 897.0 5,830 5,508 5,508 5,508 896.0 5,186 4,879 4,879 10,387 895.0 4,571 4,278 4,278 14,664 894.0 3,984 3,705 3,705 18,369 893.0 3,425 3,160 3,160 21,529 892.0 2,895 Pool Depth = 5.00 Feet Available Volume = 21,529 cu ft, > 19,800 required.. Basin Volume Top Elevation = 900.0 Tep Dimensions = 30' x 15' Bottom Elevation = 943.5 Bottom Dimensions = 19' x 4' Trapping Efficiency Surface Area = 0.18 ac 0.01 acre per cfs= 0.17 ac Shape =Half Moon D N116il07:NT1r M Appendix .B Construction Specifications and Maintenance Plans 1 Construction Specifications and Maintenance Plans Practice No. Vegetative Screen - Trees and Slnnnbs 6.02 Conveyance Channels 6.30 6.31 Slope Dravns 6.32 Outlet Stabilization Structures 6.41 "Temporary Sediment Traps 6.60 Sediment Fence (Silt Fence) 6.62 Rock Dam 6.63 Approved Revegetation Plan (Existing) VEGETATIVE SCREEN - TREES AND SHRUBS (Practice 6.02) Construction Specifications ' Trees Planting bare -root tree seedlings -Bare -root seedlings should be handled -only while dormant in late winter, early spring, or after leaf fall in autumn. Availability of stock usually limits planting to winter or spring. Store packages of seedlings in a shaded location out of the wind. If it is necessary to store moss -packed seedlings for more than two weeks, add one pint of water per package. Do not add water to clay -treated seedlings. Do not allow roots to dry during planting by carrying seedlings exj)osed to air and slnr. Keep moss -packed seedlings in a container packed with wet moss or filled with thick muddy water. Cover clay -treated seedling with wet burlap. 1 With a tree planting bar or spade, make a notch deep enough to accommodate the roots. Place the roots in the notch to the same depth as in the nursery, then firm soil around roots by pressing the notch closed. Water immediately and mulch the area within 2 ft. of the plant. Several weeks after planting, broadcast a handful of 10-10-10 fertilizer ' around each plant, at least 1 ft. fi-om the base. On large sites where slopes are not prohibitive bare -root seedlings can be efficiently planted in furrows using a tractor -drawn vegetable transplanter. Planting balled-and-buriapped or container -grown trees -Late fall (Nov. -Dec.) is the preferred planting time for deciduous trees and evergreens, although they may be planted year-round. Avoid summer planting. Keep the soil around the roots moist until planting. Branches should be bound with soft rope to prevent damage during transport. Each planting hole must be deep and wide enough to allow proper placement of the root ball. Ideally, the hole should be twice the size of the root ball. When digging the ' hole, keep topsoil separate from subsoil. If Lire subsoil is high in clay, allow extra room ' . (one-half again the Height of the root ball). Backfill the hole with enough topsoil or peat moss to position the base of the tree at the same level as in the nursery. If the plant is in a container, carefully remove it, taking the soil surrounding the roots with it. ']'his may require cutting the container. Loosen the twine and burlap at the. top of balled- and-burlapped plants and check to make sure that no other wrapping is present before planting. Before repiacing subsoil, mix it with one-tliird peat moss or well -rotted manure. Backfill the hole, firming the soil as it is replaced, and leave a depression around the trunk within the excavated area to hold water. Cover the base of the tnuik to the same level as before it was removed. Water thoroughly and rewater as necessary to keep the roots [Hoist. Stake small trees with vertical stakes driven into the ground, just beyond the root ball. Secure large trees with guy wires. Cushion wire, where it contacts the tr,;e, with rubber hose. Wrap the trunks of young trees to protect them from sunbunt and pests. Fertilize trees in late fall or early spring, before leaves emerge. Using a punclrbar, crowbar, or auger, make holes 18 inches deep and about 2 feet apart around the drip line of each tree. Distribute the fertilize evenly among the holes to bring it in contact with tree roots, and close. Shrubs 1 Obtaining shrubs -Shrubs are nonnally planted as bare -root stock or container - growl plants. Container -grown seedlings, 1 year old, are usuall.y.recommended for their ease of planting and cost. ' Planting is best done in early fall or early spring. Follow the genera] procedures for tree care and planting. 1 Maintenance ■ ■ Maintenance requirements depend on the particular shrub. In all cases watering is important in getting plants established. Once established, fertilizing every 3) years is generally sufficient. A heavy layer of mulch around the base of each plant reduces weeds and retains moisture. Mulch may consist ofwoodchips, sawdust, pine needles, or straw. CONVEYANCE CHANNELS (Practice 630 and 6.31) Conetryetinn Specification Grass -Lined Channel I, Remove all trees, brush, stumps, and other objectionable material for the foundation area and dispose of properly. 2. Excavate the channel and shape it to an even cross section as designed. When staking, indicate a 0.2 feet over cut around the channel perimeter for silting and bulking. 3. Grade soil away from channel so that surface water may enter fieely. 4. Place temporary linings and apply lime, fertilizer, and seed the rhantel and adjoining areas in accordance the vegetation plan. Riprap Channels I. Clear the foundation area of trees, stumps, roots, loose rock, and other objectionable material. 2. Excavate the channel and shape it to an even cross section as designed wit a lining thickness of 1, 5 times the d50 riprap size. 3. Place filters and beddings to line and grade immediately after slope preparation in the manner specified. 4. The filter layer will be a minimum of six inches thick with size code NC No, 57, 5. perform all channel construction to keep erosion and water pollution to a minimum. 6. Immediately upon completion of the channel, vegetate all disturbed areas or otherwise protect them against soil erosion. Masntenance ' Inspect' channels at regular intervals as well as after major rains and make repairs � 5 J � p promptly. Give special attention to the outlet and inlet sectio-us and other paints where .' concentrated flow enters. Carefully check stability at road crossings and look for indications of piping, scour holes, or bank failures. Make repairs immediately. Maintain all vegetation adjacent to the channel in a healthy, vigorous conditiois to protect the area from erosion and scour during out -of -bank flow. 1 SLOPE DRAINS (Practice 6.32) A common failure of slope drains is caused by water saturating the soil and seeping, along the pipe. This creates voids from consolidation and piping and causes washouts. Proper backfilling around and under the pipe "haunches" with stable soil material and hand compacting in 6-inch lifts to achieve firm contact between the pipe and the. soil at all points will eliminate this type of failure. 1. Place slope drains on undisturbed soil or •,yell compacted fill. at locations and elevations shown on the plans. 2. Slightly slope the section of pipe under the dike toward its outlet. 3. Hand tamp the soil under and around the entrance section in lifts not to exceed 6 inches. 4. Ensure that fill over the drain at the tope of the slope has minimum dimensions of' 1.5 ft. depth, 4 ft. top width, and I I side slopes. 5. Ensure that all slope drain connections are watertight. 6. Ensure that all fill material is well -compacted. Securely fasten the exposed section of the drain with grommets or stakes spaced no more than 10 ft. apart. ". Extend the drain beyond the toe of the slope and adequately protect the outlet from erosion. 8. Make the settled, compacted dike ridge no less thair i ft. above the top of the pipe at every point. . 9. Immediately stabilize all disturbed areas following construction. Maintenance Inspect the slope drain and supporting diversion after every rainfall and promptly make necessary repairs. When the protected area has been permanently stabilized; tewporai7y measures may be rernoved, materials disposed of properly and al; disturbed areas stabilized appropriately. 1 OUTLET STABILIZATION STRUCTURE (Practice 6.41) ' Construction Specifications I . Ensure that the subgrade for the filter and riprap follows the required lines and 1 grades shown in the plan. Compact any fill required in the subgrade to the density of the surrounding undisturbed material. Low areas in the subgrade on undisturbed soil may also be filled by increasing the riprap thickness. 2. The riprap and ravel filter must conform to the specifiedgrading, limits shown on P P g sl the plans. 3. Filter cloth, when used, must meet desigpi requirements and be properly protectdd frorn punching or tearing during installation. Repair any damage by removing the ' riprap and placing another piece of filter cloth over the damaged area. All connecting joints should overlap a minimum of 1 ft. If the damage is extensive, replace the entire filter cloth. 4. Riprap may be placed by equipment, but take care to avoid damaging the filter. 5. The minimum thickness Ofthe.riprap should be 1.5 times the maximum stone diameter. 1= 6. Riprap may be field stone or rough quarry scone. It should be hard, angular, highly weather -resistant and well graded. 7. Construct the apron on zero grade with no overfall at the end. Make the top of the riprap at the downstream end level with the receiving area or slightly below it.. 6. .Ensure that the apron is properly atlgned witty the receiving stream and preferably straight throughout its length. If a curve is needed to fit site conditions, place it in the upper section of the apron. ' 9. Immediately after construction, stabilize all disturbed areas with vegetation (Practices 6.1 U, Temporary Seeding, and 6.11, Pernlaneut Seeding). Maintenance . Inspect riprap outlet struCt#lres after heavy rains to see if any erosion around or below the riprap has taken place or if stones have been dislodged. Immediately make all ' needed. repairs to prevent fiirther damage. i TEMPOMAY SEDIMENT TRAPS (Practice 6.60) ' Construction Specifications 1. Clear, grub, and strip the area under the embankment of all vegetation and. root mat. - Remove all surface soil containing high amounts of organic matter and stockpile or dispose of it properly. 2• Ensure that fill material for the embankment is fee of roots, woody vegetation, organic; matter, and other objectionable material. Place the fill in lifts not to exceed nine inches and machine compact it. Overfill the embankment six inches to allow for settlement. 3. Constrict the outlet section in the embankment. Protect the connection between the riprap and the soil from piping by using filter fabric or a keyway cutoff trench between the riprap structure and the soil. * Place the filter fabric between the rprap and soil. Extend the fabric across the spillway foundation and sides to the top of the dam; or Excavate a keyway trench along the centerline of the spillway foundation extending up the sides o the height of the dam. The trench should be at least two feet deep and two feet wide with 1:1 side slopes. 4. Clear the pond area below the elevation of the crest of the spiilw:ty to facilitate sediment clean -out. 5. All cut and fill slopes should be 2:1 or flatter. 6. Ensure that the stone (drainage) section of the embankment has a minimll'in bottom width of three feet and maximum side slopes of 1:1 that extend to the bottom of the spillway section. 7. Construct the minimum finished stone spillway bottom width, as shown on the plans, with 2:1 side slopes extending to the tope of the over -filled embankment. Keen the thickness of the sides of the spillway outlet structure at a minimum of 21 inches. The weir must be level and constricted to grade to assure design capacity. Q 'Idx te-4al .a the -- -tion M—uld be a . �rell_nY�rlPri M'1i-i��llre of etAT P. 1. l[n Ll.11[�1 use-' V Ill Ll1V JLMU_ JVVLIUll Ja1V�.IlU VV r auu»u� with a d5o size of nine inches (Class B erosion control stone is recommended) and a maximum stone size of H inches. 1'lie stone -may be machine placed and the smaller stone worked into the voids of the larger stones. iue stone should be liar{i, angular, and'nighiy weather resistant. 9. Ensure that the stone spillway outlet section extends do%viistream past the toe of the embankment zero grade A ith length equal to spillway height. Also ensure that drainage flows in the direction indicated on the plan sheet. Keel) the edges of the stone outlet section flush with the surrounding ground and shape the center to confine the outflow stream. 10. Direct emergency bypass to natural, stable areas. Locate bypass outlets so that flow will not darriage the embanlri eft. 11. Stabilize the embankment and all disturbed areas above the sediment pool and downstream from the trap immediately after construction. 12: Mark the distance from the top of the spillway to the sediment clean -out level (one-half the design depth) in the field. ivlainfenance Inspect temporary sediment traps after each period of significant rainfall. Remove sediment and restore the trap to its original dimensions when the sediment has accumulated to one-half the design depth of the trap. Place the sediment that is removed in the designated disposal area and replace the contaminated part of tile gravel facing. Check the structure for damage for erosion or piping. Periodically check the depth of the spillway to ensure it is a nnnllmun] of 1.5 feet below the low point of the embankment. I.mn:,ediately fill any' settlement of the embankment slightly. above design grade.. Any riprap displaced from the spillway must be replaced immediately. After all sediment -producing areas have been permanently stabilized, remove the structure and all unstable sediment. Smooth the area to blend with the. adjoining areas and stabilize properly. SEDIMENT FENCE (SILT FENCE) (Practice 6.62) Construction Specification Materials 1. Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon, polyester or polyethylene yarn, which is certified by the manufacturer or supplier as conforming to the requirements shown in Table 6.62b. Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of o to 1200 F. 2. Ensure that posts for sediment fences are either 4-inch diameter pine, 2-inch diameter oak, or 1.33 lb/linear feet steel with a minimum length of 4 R. Make sure that steel posts have projections to facilitate fastening the fahzic. 3. For reinforcement of standard strength filter fabric, use wire fence with a minimum 14 gauge and a maximum mesh spacing of 6 inches. Table 6.62b - Physical Property Requirements Filtering Efficiency 85% (min) Tensile Strength at 20% (max.) Elongation Standard Strength - 30 Win in (min) Extra Strength - 50 lb/fin in (min) Slurry Flow Rate 0.3 gal/sq Wrenn (min) Construction -. 1. Construct the sediment barrier of standard strength or cKrra strength synthetic filter 2. En alre that the height of the sediment fence does not exceed 18 inches above the ground surface. (Higher fences may impound volumes of water sufficient to cause failure oftbe structure.) 3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joins: When jointsarenecessary, securely fasten the filter cloth only at support post with overlap to the next post 4. Support standard strength filter fabric by wire mesh fastened securely to the ups!ope >I side of the posts using heavv'duty wire staples a least 1 inch lon-, or tie wires. Extend the wire mesh support.to the bott.am of the trench. ' 5. When a wire mesh suppoil fence is used, space posts a maximum of S ft. apart. . Support posts StIOUld be d^veil seviirely into the gr'nmirl to n minirllim of 1 R iii rhac 6. Extra strength filter fabric with 6-ft. post spachig, does not require wire mesh support fence. Staple or w1re the ;Ater fabric directly to posts. ' 7. Excavate a trench approximately 4 inches wide and R inches deep along the proposed lizie of posts and upslope from the barrier. R. Backfill the trench with compacted soil or gravel placed over the filter fabric. ' 9. Do not attach filter fabric to existing trees. Maintenance ' inspect sedinien.t fences at least once a week and after each rainfall. Make any ' required repairs immediately. Should the fabric of sediment fence collapse, tear, decompose or become ' ineffective, replace it promptly. Replace burlap every 60 days. Remove sediment deposits as necessary to provide adequate storage volume for the next rain and to reduce pressure on the fence. Take care to avoid undernvning the fence during cleanout. rials and unstable sediment. deposits and bring the area to lt.emove all fencing mate , . ' grade and stabitize it after the contributing drainage area has been. properly stabilized. ' ROCK DAM (Practice 6.63) ' Construction Specifications ' 1. Clear the areas under the embankment and strip of roots another objectionable material. Delay clearing the reservoir area until the dam is in place. ' 2. Cover the foundation area including the: abutments with extra -strength filter fabric before backfilling with rock. If a cutoff trench is required, excavate at center litre of darn, extending all lire way up the earth abutments. Apply filter fabric under the rock -fill embankment, fi-om the•upstream edge of the dam to the dovnrstrearri edge of the apron, Overlap fill material a minimum of 1 foot at all joints, with the ' upstream strip laid over the downstream strip. 3. Construct the embankment with well -graded rock and gravel to the size and dimensions shown, on the drawings. If it important that rock abut-ments be at least ' . 2 feet higher than the spillway crest and at least l foot higher than the darn, all the way to the downstream toe, to prevent scour and erosion at the abutments. 4. Sediment -laden water from the construction site should be diverted into the basin reservoir at the furthest area from the dam. 5. Constnrct the rock dam before the basin area is cleared to nninirnize sediment yield fi'om construction of the basin„ Stabilize immediately all areas disturbed during the construction of the dam except the sediment pool (References: Surface Stabilization). 6. Safety - Sediment basins should be considered dangerous because they attract children. Steep side slopes should be avoided. Fences with warning signs may be needed if trespassing is likely. Allstate and local requirements must be billowed.. Maintenance Check sediment basins after each rainfall. Remove sediment and restore original volume when sediment accumulates to about one-half the design volume. Check the structure for erosion, piping, and rock replacement after each significant rainstorm and repair imi-nedistely. Remove the structure: and any unstable sediment immediately after the construction site has been permanently stabilized.' Smooth the basin site to blend with the surrounding area and stabilize. All water and sediment should be removed from the basin prior to dam removal. Sediment should be placed in designated disposal areas and not allowed to flow into streams or drainage ways during structure removal. Eakin Quarry Surry County REVEGATATlON PLAN Spring -Fall -Winter Seed Mixes SPRING RATE: Marsh - June Ibs, per acre Tall Fescue 30 - 40 lbs. per acre Sericea Lespedeza (Scarifield) 40 - 5D lbs. per acre Or White Clover a- 10 Hulled Common Bermuda Grass 10 Ibs. per acre Or Weeping Love Grass 4-5 lbs. per acre FALL RATE: 'Mid) August - October Rye grain 30 ibs, per acre Tall Fescue 70 lbs. per acre Sericea Lespedeza (Unhulled-Unscarified) 40 - 50 lbs. per acre WINTER RATE: November - February Rye grain 30 lbs. per acre Unhulled Bermuda Grass 10 lbs. per acre Unscarified Sericea Lespedeza 50 - 60 lbs. per acre Tali rescue 70 lbs. per acre FERTILIZER ALL SEASONS 10-20-20 S00 lbs. per acre Lime 4000 lbs. per acre Mulch 70 bales per acre Mulch to be anchored by one of the following methods: 1. Crimping with mulch anchoring tool; or 2. Tack with asphalt emulsion - 400 gal. per acre. REVEGETATION AND/OR REFORESTATION PLAN APPROVED BY: SIGNATURE TITLE AGENCY DATE I"� q�q✓ Appendix C SRI142 Relocation - NCDOT and Surry County Approvals a � 'n ' STATE OF NORTH aROLINA DEPARTMENT OF -IP.AN.cP0PTATI0N j 10,1E5 B. HUNT J DIVISION OF I t1GHWAYS GA�MNo B. GAI:PETr J P. GOVERNOR SECRETARY ELKIN DISTRICT OFFICE ' P. O. BOX 558 ELKIN, NORTH CAROLINA 28621 June 24, 1996 ' Mr. PhillipBally,Bail P. E. ' Marshall Miller and Associates Bluefield Industrial Park P. O. Box 848 ' Bluefield, Virginia 24605-0848 Re: Proposed Relocation of SR1142 (Elk.in Wildlife Road) Sun), County, North Carolina Dear Nr. Bally: 1 We have reviewed your final plans for the relocation of SR1 142 along the west boundary of Vulcan (quarry and approve this relocation with the following conditions: • All costs involved in the relocation will be at the expense of Vulcan Materials An abandonment petition will be submitted by Vulcan Materials for thn existing ' SR1142 between Station 0+00 and Station 39+00 and shall be approved by the Surry County Commissioners • Fin addition petition for the relocation between Station 0+00 and Station 139-�00 will be submitted by Vulcan Materials and shall be approved by the .Surry County Commissioners ■r, A fiftv (50) foot Jaht-of-wav shall be dedicated to the North Carolina Department of" Transportalion for the relocated section All work will be accomplisheG according tp NC'DO T Specifications and DOT ' will be allowed to inspect the work in prog, . es Should you have questions or need additional information, please call. 1 Sincerely, W. 0. Atkins, P. E. District Engineer W OA/JHL%Z cc: W. E. Hoke, P. E., NCDOT R. M. Freeman, P. E., NCDOT Chum Scott, Vulcan Materials Tim Hendrix, Vulcan Materials 'CLIFTON JESSUP, Chairman R=� 11.kYDEN MOXLEY WAYNE DRAUGHN, Vice Chairman CURTIS TAYLOR PFTF TPMPT FTON 1 DONNIE GAMMONS 'JOE FREEMAN � C RYRON WOLFS PHILIP. SNOW TERESA KINNEY 170 Planning Director IAugust 26, 1996 SURRY COUNTY PLANNING BOARD 118 Hamby Street, Suite 147 Dobson, North Carolina 27017 910-401-9350 RE: Abandonment of portion State Road 1142 -TO ALL PROPERTY OWNERS ADJOINING STATE ROAD 1142 Dear Property Owner: ■ Please find enclosed a public notice and supplemental information required by North Carolina General Statue(G.S.) 153A-241, regarding intention of road abandonment requested by the Surry ' County Board of Commissioners. The road considered for abandonment is a portion of State Road 1142, Elkin Wildlife Road (see attached map). Before the ;oad is abandoned, a new sectic t of State Road 1142 will be constructed and dedicated to the State of North Carolina for public use. According to G.S. 153A-241 each adjoining property owner, along the road, will be notified by registered or certified mail, regarding the request for abandonment. A public hearir:g has been scheduled by Surry County Board of Commissioners for 6:15 P.M. on September 16, 1996 at the Surry County Government Center, 118 Hamby Road, Dobson, North Carolina. if you are from out of state, you may designate a spokesperson and/or you may submit Written comments. Written comments must be received by September 13, 1996. Any written comments should be addressed to the Surry County Board of Comihissioners, 118 Hamby Road, Dobson, North Carolina 27017, faxed to 910-401-8354, or E-mail- tkinney@sunbelt.net. ' Please review the attached information, carefully. If you need additional information, you may call 9 ; 0-401-8350 or Elkin exchange 910-366-8350. ' Sincerely, ' eresa E. Kinn.� Director of Planning & Development PC: Board of Commissioners Dennis Thompson Edwin M. Woltz ' Vulcan Materials Attachments: Area Map Public Hewing Notice Resolution r MIFROMCTWERMAFIIIIIIIIIIIII m m m m m ELKIN WILDLIFE ROAD (SR 1142) (�� Y ABANDONMENT & RELOCATION `1 RRLwoSED sR 1142 IK WEST &DE RELMATICH GcrA\ i ROAD Iz 1. fro nzw 1 �� z 1i \\ Elkin 21 \ Quarry/ 00 / - \ PARK_ SCALE: 1" = 1000' PUBLIC NOTICE SURRY COUNTY, NORTH CAROLINA Tiara, NOTI E that the Surry Coun'ry Board of Commissioners expressed its intent to request abandonment of a portion of State Road 1142 by the North Carolina Department of Transportation, Division of Highways. upon affirmative action of abandonment };y the North Carolina Department of Transportation, the Surry County Board of Commissioners further expressed its intent to close the section of abandoned road way. The portion of State Road 11.42 which is ' proposed to be abandoned and closed lies between Station 0 + 00' and Station 30 +'00 as indicated on plat of survey on file in the Sur_ry County Planning Department which is available for review during ' normal business hours. PETITIONER, Vulcan Materials Company intends to construct to DOT specifications an alternative section of road way which will be dedicated to the State of North Carolina and which will replace the abandoned and closed section of State Road 1142. Neither the abandonment nor closure will occur until replacement section of ' road was is open and has been accepted the North. Carolina Department of Transportation. THE SURRY COUNTY Board of Commissioners by Resolution instructed the Planning Department to cause certified mailings to be forwarded to each owner of property along State Road 1142 giving them notice of petition for abandonment and closure and designating ' the alternative route proposed. Further, the Surry_County Board of Corrznissioners directed that (1) this notice be published in a newspaper of general circulation within the County,' once a week for L.11ree t .�,� wCeT, � 4 }.::.C:Viu� 11V L_-L G1. a pliiJ_L_LU IICd..1.11y On this issue scheduled at 6:15 P.M. on the 16th day of September, 1996 in the Commissioners' Room of the Surry County Government ^.enter,. 118 ' Hamby Road, Dobson, North Carolina, and (3) notice of said public hearinq to be included in the certified mailing referenced above. The.puhlic- hearing will allow interested persons to appear with respect to whether the closing and abandonment would be detrimental, to the public interest or to any individual property rights. THIS is the 21st day of August, 1996 1 ' Edwin M. Woltz, County Attorney 348 N. South Street Mount Airy, N.C. 27030 (910) 786--5556 1 ' NORTH CAROLINA ; RESOLUTION 'f0 ABANDON A PORTION_ SURRY COUNTY OF STATE ROAD. 1142 1 _ WHEREAS, Vulcan Materials Company has petitioned the Surry ' County Board of Commissioners to request that the Board of. Transportation. to change the location of a section of State Road 1142 and to also abandon a portion of State Road 1142; '1 AND, WHEREAS, State Road 1142 is a road in the State's secondary system; AND, WHEREAS, such proposed relocation and abandonment appears to be in the best interest of the people of Surry County; NOW, THEREFORE, be it resolved by the Surry County Board of Commissioners that: 1. The Board of Transportation is hereby requested to ' approve the relocation ofa portion of State Road 1142 and to abandon the existing portion of State Road 1142 which would be superseded by the new construction. The portion of State Road 1142 1 that the Board of Commissioners request be abandoned lies between Station 0 + 00 and Station 30 + 00 as indicated on plat of survey on file in the Surry County Planning Department which is available ' for review during normal business hours. 2. The newly proposed section of State Road 1142 which the Board of .Commissioners seeks the Department of Transportation t to approve is also indicated on plat on file in the Surry County Planning Department which is available for review during normal business hours. 3. Such Department of Transportation abandonment occur contemporaneously with the approval of the new section of State Road 1142 as shown on referenced plat. 4. That upon abandonment of said portion of State Road 1142 by the Board of Transportation, the Surry County Board of Commissioners shall mroceed with closure of the abandoned portion pursuant to N.C.G.S. 153A-241. THIS 1S THE / C� -T�"/" DAY OF AUGUST, 1996. COUNTY OF SURRY A �. Jo rSprinqtboe, Chairman NORTH CAROLINA, SURRY COUNTY. _T �J /nDA ir/1ldCY Notary Public for said County and State, certify `..hat LINDA WILKINS, Clerk to the HURRY COTMTY PnA_Rn OF COMMISSIONERS, personally appeared before me and certified that the foregoing instrument was executed in the name of SURRY COUNTY by .JOHN SPRINGTHORPE, III, Chairman of the HURRY COUNTY BOARD OF COMMISSIONERS, and that she, LINDA FILKINS, Clerk to the Board, did attest to said execution and did affix the SURRY COUNTY Seal to said instrument; and that the execution of said instrument on behalf of SURRY COUNTY was authorized by an appropriate resolution of the HURRY COUNTY BOARD OF COMMISSIONERS. Witness my hand and official seal, this the 1_�L day of Notary Public (/ Idy Commission Expires: - 8/y/Gs !S I NORTH CP..ROLI.NA } RESOLUTION TO CLOSE A_PORTION SURRY COUNTY ) OF STATE ROAD 1142 WHEREAS,.' Vulcan Materials Company has petitioned the Surry County Board of Commissioners to take action pursuant to N.C.G.S. 153A-241 to close an abandoned portion of State Road 1142 (also known as Elkin Wildlife Road) and to endorse the relocation of the portion of closed roadway in a manner consistent with- plans submitted and approved to the State of Forth Carolina, Department ci iransportation, Division of Highways. AND, WHEREAS, the abandonment and relocation is for a section of State Road 1142 between station. 0 + 00 and station 39 + 00 as indicated on plat of survey on file in the Surry County Planning Department which is available during normal business hours for -inspection. AND, WHEREAS, the costs of closure and construction are to be' borne by Vulcan Materials Company; AND, WHEREAS, in order to properly close a public roadway, the Board must first adopt a resolution declaring its intent to close. the .-portion of abandoned roadway, call a public hearing' on the question, provide notice of said public hearing by publication and by certified mail at which time all interested persons may address the Commissioners regarding the proposed closing. - THEREFORE, 'be it resolved by the Board of Commissioners of Surry County, North Carolina: 1. That the Surry County Board of Commissioners intends to take action to close an abandoned portion of State Road 1142 between station 0 + 00 and station 39 + 00 which is to be relocated as is indicated on plat of survey on file in the Surry County Planning Department, which is available for inspection during normal business hours. 2. That a public hearing shall be scheduled. on the question of closure and relocation at 6.1.5 P.M. on the day of ice:, , G 19 � in the Commissioners' Room cf the Surry Count Government Center, 116 Hamby Road; Dobson, Noith Carolina to hear from all interested persons who appear with respect to whether_ the closing would be detrimental to the public interest -or to any individual property rights - That 4. Further, that notice of the proposed ciosing and public hearing be prominently posted on at least two (2; places along State Road 1142. 5. That said closure shall be contingent on the North Carolina Department of Transportation, Division of Highways providing notice of those actions of abandonment by written notice to the County Manager. C.IO TF THE �Ci DAY OF AUGUST, 1996. �S 5kRY p V 6 ? COUNTY OF SURRY *Ga 0J BY: n Spzd-n e; Chairman .. _..K� NORTH CAROLINA, SURRY COUNTY. i, /j/Ni:)H /3. NHNE I' , Notary Public for said County and State, certify that LINDA WILKINS, Clerk to the SURRY COUNTY BOARD CF COMMISSIONERS, personally appeared before me and certified that the foregoing instrument was executed in the name of SURRY COUNTY' by JOHN SPRINGTHORPE, III, Chairman of the SURRY COUNTY BOARD OF COMMISSIONERS, and that she, LINDA WILKINS, Clerk to the Board, did attest to said execution and did affix the SURRY COUNTY Seal to said instrument; and that the execution of said instrument on behalf of SURRY COUNTY was authorized by an. appropriate resolution of the SURRY COUNTY HOARD OF COMMISSIONERS. ,�[[ witness my hand and official seal, this the 20 day of7��1Li'T —� 1 Notary Public My Commission Expires: (SEAL) Appcndix D Approved Wetlands Permits U.S. ARMY CORPS OF ENGINEERS WTT �WNGTON JUSTPTCT Action ID. 1991 �023 84 County Surry GENERAL PERINIIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner/Agent Vulcan Nlaterials Company Address 4401. North Patterson Avenue, Winston-Salem, North Carolina 271 105 Telephone No. 910 767-4600 Size.and Location of project (waterway, road name/number, town, etc.)- Vulcan Materials, Elkin Quan-v located off f"N.C. 2 _8 .adjacent to. the Yadkin -River -near Elkin, in Surr_ Count , North Car(Lina. Description of Activity - ----. —,—_.- Discharce of fill associated_v6th_ rya )oscd quarry operations expansion resulting in t;.866 acres of impacts to thF jurisdictional waters of unnamed tributaries of_the Yadkin River. Thus pro} osed impact t is in addition 0.50 acres of_i_mpaacts to jurisdict_ iollal waters authorized in 1991. Total authorized ; r_the roject is i.36 acres. ' X Section 404 (Clears Water Act, 33 USC 1344) only. _ _-_Section IQ (River and.Harbor Act of 1899) only. Section 404 and Section 10. S NUP 26 Nationwide Permit Nuinbez. Any violation of the conditions of the Regional General or , ationwide Permit referenced above may subject the permittee to a stop work order, a restoration order, and/or approprate legal action. this D4panm-icnt of the. Army Regional Gene ral/' anonwitde Permit veriflcatiorl does not re;tieve tlie-undersignfd perrnittee c131.7 t!ie responsibility to obtain any other required Federal, State, or local appiu)V2JSlpermsts. The pr.rmittee may need to contact appropriate Statc and local agencies before beginning work. Regulatory Project Vla.nager S=gnatuYe Date i�Ycl1 l 51 129r--_ E�.pirat:on ate Ja.nua-v21 ' ! 99 ; `T SURVEY PLAIS, FIELD SKETCH, MTETLA.ND DELINEA1710N FORM, ETC., MUST BE ATI A.CHED TO THE FILE COPS" OF TES FORM., I: REQUIRED OR AVAILABLE. 1 1 1 1 1 1 1 1 GENERAL CONDITIONS taviaarion.'No activity may cause more than a minimal adverse effect on naviostion. =. Proper :Maintenance_ Anv structure or fill authorized shall be properly maintained, including maintenance to ensure public tv. rosion and Siltation Controls. Appropriate erosion and siltation controls must be used and ;maintained in effective operating condition during construction, and all exposed soil and other fills must be permanently stabilized at the earliest practicable date, kquatic Life Movements. No activity may substantially disrupt the movement of those species of aquatic life indigenous to :, % at:rbody, inc,udin, those species which normally migrate through the, arf:a, unless the activity's primary purpose is to impound water. iEquipment. Heavy equipment working, in wetlands must br placed on mats or other measures must be taken to minimize soil :urbance. o'7Regional and Case -by -Case Conditions. The activity must comply with any regional conditions which may have been added the Division Engineer and any case specific conditions added by the Corps. Wild and Scenic Rivers. No activity may occur in a component of the National Wild and Scenic River System: or in a river or:icially designated by Congress as a "study river" for possible inclusion in the system, while the river is in an official study �ttis. Infon,�at€on on Wild and Scenic Kivers may be obtained frUm the National Park Service and the U.S. Eorest Service. Tribal Rights. Ni o activity or its operation may impair reserved tribal rights, including, but not limited to, reserved water ri,his and treaty fishing and hunting rights. 9 Water Quality Certification. In certain states, an individual state water quality certification must be obtained or waived. Coastal zone Management. In certain states, an individual state coastal zone management consistency concurrence must be rained or .waived. i. Endangered Species. No activity is authorized under and NAVP which is likely to jeopardize the continued existence of a 1eatened or endangered species or a species proposed for such designation, as identified under the Federal Endangered Species , or which is likely to destroy or adversely modify the critical habitat of such species. Non -Federal permittees shall notify the District Engineer if arty listed species or critical habitat might be affected or is in the'vicinity of the project and shall not begin flrk on the activity until notified by the District Engineer that the requirements of the Endangered Species Act have been isfied and that the activity is authorized. Information on the location of threatened and endangered species can be obtained tiG n the U.S. fish and Wildlife Service and National Marine Fisheries Service. IHistoric .Properties. No activity which may affect Historic Properties listed, or eligible for listing, in the National Register of s-wric Places is authorized, until the District Engineer has complied with the provisions of 33 CFR 325, Appendix C. The prospective permittee must notify the District Engineer if the authorized activity may affect any historic properties listed, 11ermined to be eligible, or which the prospective permittee has reason to believe may be eligible for listing on the National gister of Historic Places, and shall not begin the activity until notified by the District Engineer that the requirements of the National Historic Preservation Act have been satisfied and that the activity is authorized. Formation on the location and existence of historic resources can be obtained from the State Historic Preservation Office and E: National Register of Hi.ctdric Places (see 33 CFR 330.4 (g)). i 3. Water Supply Intakes. No discharge of dredged or fill material may occur in the proximity of a public water supply intake 'cept where the discharge is rr.pair of the pubiic water supply intake structure or adjacent bank stabilization. . Shellfish Production. No discharge of dredged or till material may occur in areas of concentrated shellfish production, unicss the discharge is directly related to a shellfish harvest activity authorized by nationwide permit. Suitable !Material. No•discharge of dredged or fill material may consist of unsuitable material (e:g. trash, debris, car bodies, .) and material discharged must be free from toxic pollutants in toxic amounts. ib. iYlitigatiou. Discharges of dredged or fill material into waters of the United States must be minimized or avoided to the rmucn extent practicable at the project site (i.e., on -site), unless the District Engineer has approved a compensation mitigation infor the specific regulated activity. 17.' Spawning Areas. Discharges in spawning areas during spawning seasons must. be avoided to the maximum extent �icticable. '. Obstructions of High Flows. To the maximum extent practicable, discharges must not permanently restrict or impede the passage of normal or expected high flows or cause the relocation of the water (unless the primary purpose of the fill is to �!pound waters). '. Adverse Impacts from Impoundments. If the discharge creates an impoundment of water, adverse impacts on the aquatic system caused by the accelerated passage of water and/or the restriction of its flow shall be minimized to the maximum extent cticable. Waterfowl Breeding Areas. Discharges into breeding areas fog migratory waterfowl must be avoided to the maximum extent practicable. 1. Removal of Temporary Fills. Any temporary fills must be removed in their entirety and the affected areas returned to their �e-existing elevation. State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management 0 James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary F-:z A. Preston Howard, Jr., P.E., Director April 23. 1996. Starry county ' DEM Project 4 960O65 APPROVAL of 401 water Quality Certification and ADDITIONAL CONDITIONS Mr. INfike Poplin ' Vulcan Materials Co. 4401 N. Patterson Ave. 'Winston-Salem, INC 27105 - ' Den Mr. Poplin: You have our approval to place fill material in 1.366 acres of wetlands or wants for, the purpose or expanding an existing quarry at Elkin Quarry, as you described in your application dated 21 February 1996, Alter reviewing your application, we have decided that this Fill is covered by General Water Quality Certification Number 2671. This certification allows you to use Nationwide Permit Number 26 when it Is issnad by the Corps of Engineers. This approval is only valid for the purpose and design that you described in your application. If you change your project, you must notify us and you may he required to send us a new application. For this approval 10 be valid, you must follow the conditions listed in tire attached certification. A 50 foot wide wooded Shall be planted and maintainul along the Yadkin River and streams adjacent to the property houndarics in Ibc Yadkin River flood plain. If the owner of the adjacent pond is willing. Vulcan shall prepare a bo0otn contour map of the pond (existing condition) and than dredge the pond to the approximate existing contour within one year after the berm is established, stabilized and the SR road is relocated. In addition, you should get any other . federal, state or local permits before you go ahead with your project. If you do not accept any of the conditions of this eenificatimt, you may ask for an adjudicatnry hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written 'petition which conforms to Chapter 150E of the North Carolina General Statutes to. the Office or Administrative Hearings, P.O. Box 27447. Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review of the Division of Environmental Managmuciu under Section 401 of the - Clean Water Act. If you have any questions, please telephone John curacy at 919-733-1786. ' IcLrccre!Y. \ Howdid, ]c P.E. I Attachment Iy9999,�`�cyton cc: Wilmington District Corps of Engineers " Corps of Engineers Raleigh Field Office Winston-Salem DEM Regional Office . Mr. John Denney Central Fires Tracey Davis; land Quality Bob Storey; Marshall Miller and Associates 96DO65,iw Environmental sciences eranrh, 4a01 Reedy Croak Rd., Raleigh, NC 27607 Telephone 919-733-1706 FAX 9 733-W59 An Equal Opportunity Affirmative Acton Employer • 50%recycl rOM, post consumer paper State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Mr. Mike Poplin Vulcan Materials Company 4401 N. Patterson Ave. Winston-Salem, NC 27105 Dear Mr. Poplin: Re: Modification of Water Quality Certification 'vuicm F.i'rin Quarry Surry County DEM n960065 AINEWIVilk y7 ��HNR June 19, 1996 The 401 Water Ouaiiw Certification issued on 23 April 1996 contained an adrlitiional condition regarding potential sedimentation into the adjacent pond. This condition is hereby removed and replaced with the following: a Temporary erosion and sedimentation control measures contributing to the above referenced pond will be designed to adequately pass the 100-year design storm in lieu of the 25-year storm design standard: and, b. If requested in writing by the landowner within two years of the date of this Certification, Vulcan shall investigate and if required by DEM shall remove any sedimentation in the pond which is directly attributable to runoff from Vulcan's property. All other conditions of that Certification are still applicable. Please call Mr. John Domey of my staff at 919-733-1786 if you have any questions. Sincerely, I^II IZ cy Y' - �IpIF/fj �esmward, Ir., E. a: Wilmine on District Corps of Engineers �I Corps of Engineers Raleigh Field Office Winston-Salem DEM Regional Office Mr. John Domey Central Files Tracey Davis; land Quality Bob Smiley; Marshall Miller and Associates Division of Environmental Management - Environmental Sciences Branch 4401 Reedy Creek Rd., Raleigh, NC 27626-0535 • Telephone 919-733-1786 • FAX 919-733-9959 An Equal Cpportunuy Affirmative Action Employer 50% recycled/ 10%postconsumer paper State Route 1142 Relocation Elkin, North Carolina Vulcan Materials Company October, 1996 Prepared far: Vulcan Materials Company Midcast Division _ P.O. Bex 4239 Winston-Salem, North Carolina 271 6"'4239 RECEUEG DEHNR OC7 - A 1996 LAND QUALITY SECTION Prepared by: Marshall Miller & Associates Bluefield Virginia Industrial Park P.O. Box 848 Bluefield, Virginia 24605-0948 I. II. M. IV. V. V11 Table of Contents Cover Page Letter of Trwisnuttal Narrative Erosion and Sediment Control Plan Appendices Appendix A Conveyance Channel Design Computations Appendix B Rock Darn Design Computation Appendix C. Construction Specifications and Maintenance Plans Appendix D SR1142 Relocation - NCDOT and Surry County Approvals Appendix E Approved Wetlands Permits Maps Cover Page 1. Summary of Quantities 2. Plan View and Profile Stations 00+00-30+00 3. Plan View and Profile Stations 20+00-40+50 4. Sight Distance and Typical Section 5-14. Cross -Sections 15-16, Drainage Cross -Sections 17. Erosion & Sediment Control Details M�ftllm2x6i�� GEOLOGY ENGINEERING GEOPHYSICS October 4, 1996 Mr. Chris Scott, Senior Mining Engineer Vulcan Materials Company P.O. Box 4239 Winston-Salem NC 27115 RE: State Route 1142 Relocation Elkin, North Carolina Project ]Vs. PR104 Dear Cluis: Enclosed is the Erosion & Sediment Control Plan for the SRI142 Relocation at Elkin, North Carolina. This package is, we believe, comprehensive and addresses all facets of the proposed road relocation. We appreciate the opportunity to have assisted you with this plan. We await any questions or comments which you or the North Carolina Department of Environment, Health and Natural Resources may have. Sincerely, Mja"rrsshVLaII(Illl Miller C(&jAssociates Philip R Baily, P.E. " Civil Engineer ejw Enclosures Bluefield Virginia Industrial Park / P.O. Box 848 / Bluefield, VA 24605 / Tel 540.322.5467 / Fax 540.322.5460 NARRATIVE ■ ■ Site Description State Route 1142 (Elkin Wildlife Road) is located just east of Elkin, North Carolina. SR1142 runs north -south and connects Highway 268 and C.C. Camp Road. 1 (Refer to the Vicinity Map on the cover of the design plans). SR1142 currently bisects Vulcan Materials Company's (VMC's) Elkin Quarry. VMC proposes to relocate SRI 142 in order to increase public safety while gaining access ' to reserves on the western side of their property. The North Carolina Department of Transportation and the Sorry County Commissioners have already approved the relocation. (Refer to Appendix D for approvals). 1 The site is located in the Yadkin River basin and is located north of the river. A ' tunsarcuonat uererrnmanon ana Nauonwnae retina, Necium vuv nave peen approvea oy the U.S. Army Corps of Engineers. The North Carolina Department of Environment Health and Natural Resources have approved the 401 Certification. (Refer to Appendix E ■ for the approved wetland permits). 1 rrojeci Description ' The project consists of establishing erosion and sediment control structures to ' control runoff from the SRl 142 relocation construction. Once the erosion and sediment control structures are in place, excavation will commence along the proposed alignment. Construction Schedule ' The following construction schedule will be followed: Construct rock dam 28 + 20; Channels No. 17, 16, 15, and a portion of 19; Culverts No. 6 and 8. 6. 7. 8. 9. 10 12 Construct rock dam 36 + 00; a portion of Channel No. 21. Construct rock dams 24 + 00 and 22 + 00; Channels No. 13, 12. Construct rock dam 19 + 00; Channel No. 10. V Vl.; JLL UVL AOVA1 Uq},lA LJ - JV, -"Ita nel 110. U, Construct rock dam 12 + 25; Channel No. 5. Construct rock dam 8 + 50; Channels No. 4, 3, and a portion of 2. Perimeter erosion and sediment control measures are in place; begin excavation along road alignment. Construct rock dam borrow area; Channels No. 25 + 26. Begin excavation in the borrow area. Construct roadside ditches and install culverts as road nears final grade. Annly road curfacinpr and e-,tahli-,h nermanent. veo3etatinn on dicturhed area.,;- jr-rV - ----- - o ------ --------- r o--------- --- ----- --- -- -- ---- Erosion and Sediment Control Plan ■ ' The erosion and sediment control principles for this project are to simply convey runoff and to collect and treat any sediment laden runoff prior to discharge from the site. ' The North Carolina Erosion and Sediment Control Planning and Design Manual has been adhered to and used for guidance during the development of this plan. All structures are desimied based on a minimum 25 year-24 hour storm event and some structures are based ton the 100-year, 24-hour storm event. The main erosion and sediment control structures for this nroiect are rock dams, conveyance channels, and culverts with outlet protection. Silt fence (Practice 6.62) will be ' used in isolated instances where land disturbance is minimal and the time duration is short. Slope drains (Practice 6.32) will be utilized in the stockpile areas during the active life of ' the facility and temporary sediment traps (Practice 6.60) have been included in the design, in case, the need may arise for a temporary measure during construction. ' Appendices A and B contain the runoff computations. ' •Peak Runoff ' Runoff is computed using the rational method, Q—CiA where: Q = Peak rate of runoff in CPS C = Runoff Coefficient i = Intensity of rainfall in inches/hour ' A = Drainage area in acres The rmmff coefficient, C, for this project was chosen to be 0.50 due to the nature of mining operations and the disturbance duration. Assuming C = 0.50 throughout all the design calculations is a conservative measure which adds factor of safety to the drainage structures. Some structures, where no disturbance is proposed, compute C by weighted average. ' A short time of concentration, five minutes, is assumed for all drainage areas. ' This is another conservative assumption which adds additional factor of safety. *Rock Dam (Practice 6.63) Rock dams are utilized on the project to treat sediment laden runoff prior to tdischarge from the sight. The basin volumes are based on 1800 cubic feet of storage for each acre of drainage area. (Rock Dams 002 and 003 are exceptions, they are sized based ' on disturbed drainage area.) The spillways are sized to pass the 25 year - 24 hour storm. The embankments have a minimum width of 5 feet with the upstream slope at 2:1 and the downstream slope at 3:1. Embankments shall be underlain by a 2 foot by 2 foot cutoff e trench. The rock embankment shall be constructed of stone with a minimum d50 — 9" and ' the upstream face shall be covered with a NCDOT #57 stone filter layer. Trap efficiency has been designed so as to prevent short circuits from inlets to ' outlets and the detention time is at least 8 hours. The surface area is sized to provide 0.01 acres per CFS of runoff. ' •Conveyance Channels (Practice 6.30 and 6.31) ■ The conveyance channels are sized based on the 25 year - 24 hour storm. The i channel dimensions are evaluated for capacity and velocity (based on the design retardance class). Then they are evaluated at a retardance class one higher than design to account for vegetative growth and debris build-up. Once the dimensions are established then the temporary lining is designed. Channel linings for this project are grass, riprap and one steep slope channel is grouted riprap, The grass lined ditches have temporary linings of ' either jute net, straw with net or synthetic mat. Channel linings are designed using the Tractive Force Procedure. e Culverts The ' The culverts are designed to pass the flow from a 25 year - 24 hour storm. Culvert designs are based on Manning's "n" values for corrugated metal pipe. The design procedure consists of computing both the inlet control flow and the pipe control flow to determine which is the critical parameter. Once the critical parameter determined then the ' culvert is sized to prevent overtopping of the inlet embankment by the design storm. ��' �� Rock riprap energy dissipators (Practice 6.41) are designed for the pipe outlets to prevent excessive erosion. ' .Temporary Seeding (Practice 6. 10) ' Temporary seeding is to be applied to all disturbed areas where work is delayed for a period of more than 30 days but not more than one year. ' *Permanent Seeding (Practice 6.11) Q Permanent seeding is to be applied on areas which have been brought to final grade or areas which are rough graded and will not be brought to final grade within a year or more. t•Vegetative Screen -Trees, Shrubs Vines and Ground Covers (Practice 6.13) ' Trees, shrubs, vines and ground covers shall be used in areas where a vegetative screen is necessary. And existing vegetation does not exist. i.Land Grading (Practice 6.02) ' All cut and fill slopes in unconsolidated material will be no steeper than 2:1 with a 10 foot horizontal bench at each 30 foot elevation interval. Cut slopes will be fine graded ' immediately after rough grading and will be vegetated according to the Vegetation Plan. As the disposal areas are created, the material shall be placed in even layers and ' compacted. Vegetative measures shall be applied according to the Vegetation Plan and the regulations set forth for temporary and permanent seeding. 1 •Tree Preservation and Protection (Practice 6.05) Trees and other vegetation will be preserved as much as possible for their screening, landscape and erosion protection value. 1 u �1'm'ai�rsa 1 ' Appendix A Conveyance Channel Design Computations e Channel No. 1 Drainage Area = 0.43 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.86 Q25 =1.72 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 4.50 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 1.60 Retardance d Class (ft) Tall Fescue .D. 0.76 Tall Fescue "C" 1.01 i100 =10.00 Q100 =2.15 A V Q T (sq ft) n R (fps) VR (cfs) (151cu ft) Comments 1.73 0.0950 0.36 1.00 0.36 1.73 V<Vp, Q>Q25 3.06 0.2000 0.48 0.57 0.27 1.76 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft/sec Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 1.60 % CL-50.WKS Q>Q25 Channel No. 2 Drainage Area = 0.46 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.92 025 =1,84 Classification: Permanent Geometry: V-Ditch VV11 VIgJJ, 0-4 LI VV IVIG Permissible Velocity (Vp) = 4.50 Left Side Slope (Z) = 4.00 Right Side Slope (2) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 1.60 Retardance d A Class (ft) (sq ft) Tall Fescue "D" 0.77 Tall Fescue "C" 1.03 i100 =10.00 Q100 =2.30 V Q T n R (fps) VR (cfs) (lblcu ft) Comments 1.78 0.0910 0.36 1.05 0.38 1.88 3.18 0.2000 0.49 0.58 0.28 1.85 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft./sec Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 4.00 :1 Right Side Slope (z2) = 2.00 A Bottom Width (b) = 0.00 feet Channel Slope = 1.60 % CR-50.WKS V<Vp, Q>Q25 Q>Q25 Channel No. 3 Drainage Area = 1.15 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i25 = 8.00 Peak Runoff (cfs) = 025 =4.60 Classification: Permanent Geometry: V-Ditch Sol!Class: L-I VU14J.. VVII VIPJ.7. GIvuIIJ1G Permissible Velocity (Vp) = nla Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 0.00 Channel Slope = 7.00 Retardance d Class (ft) RipRap d50=12" (Class 1) (Td = 4.0) 0,86 A (sq ft) n i100 =10.00 0100 = 5.75 V Q T R (fps) VR (cfs) (lb/cu ft) Comments 2.22 0.1040 0.41 2.08 0.85 4.63 3.76 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=12" (Class 1) Temporary Lining: Geometry: V-Ditch Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 7.00 % CR-620. WKS Channel No.4 Drainage Area = 0.18 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i2 = 4,00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.36 Q25 =0.72 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 7.00 Retardance d Class (ft) Tall Fescue "D" 0.50 Tali Fescue "C" 0.67 i100 =10.00 Q100 =0,90 A V Q T (sq ft) n R (fps) VR (cfs) (lblcu ft) Comments 0.50 0.0990 0.22 1.47 0.33 0.73 V<Vp, Q>Q25 0.90 0.2200 0.30 0.80 0.24 0.72 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft/sec Geometry: V-Ditch n-4k /d\. A nn feet aJ F M �Uj. �.w 1c L Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 7.00 % CR-850. WKS Q>Q25 Channel No. 5 Drainage Area = 0.16 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= Q = 4.00 i25 = 8.00 Peak Runoff (cfs) = Q2 = 0.32 Q25 =0.64 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 2.80 Retardance d Class (ft) Tall Fescue "D" 0.63 Tall Fescue "C" 0.80 1100 =10.00 Q100 =0.80 A V Q T (sq ft) n R (fps) VR (cfs) (lb/cu ft) Comments 0.79 0.1300 0.28 0.82 0.23 0.65 V<Vp, Q>025 1.28 0.2500 0.36 0.50 0.18 0.64 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft/sec Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 2.80 % CR-1000. WKS Q>Q25 Channel No. 6 Drainage Area = 0.40 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (infhr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.8 Q25 =1.60 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 4.50 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 1.60 i 100 =10.00 Q100 =2.00 Retardance d A V Class (ft) (sq ft) n R (fps) VR Tall Fescue "D" 0.74 1.64 0.0950 0.35 0.98 0.34 Tall Fescue "C" 1.00 3.00 0.2100 0.47 0.54 0.26 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft/sec Geometry: V-Ditch Depth (d): 1.00 fee Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 1.60 % CL-600.!NKS Q T (cfs) (lblcu ft) -Comments 1.62 1.63 V<Vp, Q>Q25 Q>Q25 Channel No. 7 Drainage Area - 0.21 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.42 Q25 =0.84 Classification: Permanent Geometry: V-Ditch Soii Class: Erodible Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 8.70 Retardance d A Class (ft) (sq ft) n R Tall Fes--ue D. 0.44 0.58 0.1050 0.21 Tall Fescue C. 0.58 1.01 0.2300 0.27 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.44 0.58 0.1040 0.21 Channel Summary Permanent Lining: Tall Fescue Center Lining: Flip Rap d50= 9" (Class B) Center Drain Geometry: V-Ditch r)anth frn- 1 nil fppt Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 : Bottom Width (b) = 0.00 feet Channel Slope = 8.70 % i100 =10.00 Q100 =1.05 V Q T (fps) VR (cfs) (ihlcu ft) Comments 1.47 0.30 0.85 V<Vp, Q>Q25 0.81 0.22 0.81 Q>Q25 1.48 0.31 0.86 2.39 Q>Q25, T<Td CL-1200.WKS Channel No. 8 Drainage Area = 0.29 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i2 = 4.00 i25 =8,00 Peak Runoff (cfs) = Q2 = 0.58 025 =i.i6 Classification: Temporary Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 2.50 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 13.00 i100 =10.00 0100 =1.45 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (lb/cu ft) Comments Tall Fesvie "D" 0.49 0.48 0.0790 0.22 2.47 0.54 1.19 Tall Fescue .C" 0.61 0.74 0.1450 0.27 1.56 0.43 1.16 Temporary Lining 0.41 0.34 0,1000 0.18 1.73 0.32 0,58 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < < ft./sec Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 13.00 % CR-1260.WKS V<Vp, Q>Q25 Q>Q25 i. 3.33 V2<2 ft/sec Channel No. 9 Drainage Area = 0.21 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= Q = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.42 Q25 =0.84 Classification: Permanent Geometry: V-Ditch VVII VIgJ.�, LI V<IIYIG Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2,00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0,00 Channel Slope = 8,70 Retardance d A Class (ft) (sq ft) n R Tali Fescue "D" 0,44 0.58 0.1050 0.21 Tall Fescue "C" 0.58 1.01 0.2300 0.27 Rip Rap d50=9" (Class B) Center Drain (fd = 3.00) 0.44 0.58 0.1040 0.21 Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 8.70 % i 100 =10.00 Q 100 =1.05 V Q T (fps) VR (cfs) (Its/cu ft) Comments 1.47 0.30 0.85 V<Vp, Q>025 0.81 0.22 0,81 Q>Q25 1.48 0.31 0.86 2.39 Q>025, T<Td CL-1525.WKS Channel No. 10 Drainage Area = 0.27 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.54 Q25 =1.08 Classification: Temporary Geometry: V-Ditch ,.Soilo..Ii Vlq,�u Cl, C J:41 ss: l, GI WIIJIG Permissible Velocity (Vp) = 2.50 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 10.30 i100 =10.00 Q100 =1.35 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (lb/cu ft) Comments Tall Fescue "D" 0.50 0.50 0,0800 0.22 2.20 0.49 1,10 Tall Fescue .C" 0.67 0.90 0.1750 0.30 1.22 0.37 1.10 Temporary Lining 0.43 0.37 0.1050 0.19 1.52 0.29 0.56 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft/sec Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 10.30 % CR-1640.WKS V<Vp, Q>Q25 Q>Q25 2.76 V2<2 ft/sec Channei No. 11 Drainage Area = 0.21 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= 12 = 4.00 i25 = 8.00 Peak Runoff (cfs) = Q2 = 0.42 Q25 = 0.84 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 8.70 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.44 0.58 0.1050 0.21 Tall Fescue "C" 0.58 1.01 0.2300 0.27 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.44 0.58 0.1040 0.21 Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 8.70 % H 00 =10.00 0100 =1.05 V Q T (fps) VR (cfs) (lblcu ft) Comments 1.47 0.30 0.85 V<Vp, Q>Q25 0.81 0.22 0.81 Q>Q25 1.48 0.31 0.86 2.39 Q>Q25, T<Td CL-1850.WKS Channei No. 12 Drainage Area = 0.14 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= Q = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.28 Q25 = 0.56 Classification: Temporary Geometry: V-Ditch c.,;i Class •c�.,a�tiie Permissible Velocity (Vp) = 2.50 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 7.90 il00 =10.00 Q100 =0.70 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (lb/cu ft) Comments Tali Fescue "D" 0.46 0.42 0.1100 0.21 1.33 0.27 0.56 Tall Fescue "C" 0.63 0.79 0.2550 0.28 0.71 0.20 0.56 Temporary Lining 0.40 0.32 0.1500 0.18 0.89 0.16 0.28 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: None - Velocity of 2yr < 2 ft/sec Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (zl) = 2.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 7.90 % CR-1960. WKS V<Vp, Q>Q25 Q>Q25 1.97 V2<2 ft/sec Channel No, 13 Drainage Area = 0.52 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i25 =8.00 Peak Runoff (cfs) = 025 =2.08 Classification: Permanent Geometry: Trapezoidal Soil Class: Erodible Permissible Velocity (Vp) = nla Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 4.00 Channel Slope = 15.00 Retardance d Class 00 RipRap d50=9" (Class B) (Td = 3.0) 0.25 A (sq ft) n i100 =10.00 0100 = 2.60 V Q T R (fps) VR (cfs) (lblcu ft) Comments 1.19 0.1040 0.21 1.98 0.42 2.35 2.34 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=9" (Class B) Temporary Lining: Geometry: Trapezoidal Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 A Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 4.00 feet Channel Slope = 15.00 % Channel No. 14 Drainage Area = 0.21 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= Q = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.42 Q25 =0.84 Classification: Permanent Geometry: V-Ditch wu Class. Ei wiuc Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 8.70 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.44 0.58 0.1050 0.21 Tall Fescue "C" 0.58 1.01 0.2300 0.27 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.44 0.58 0.1040 0.21 Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 8.70 % H 00 =10.00 Q100 =1.05 V Q T (fps) VR (cfs) (lblcu ft) Comments 1.47 0.30 0.85 V<Vp, Q>025 0.81 0.22 0.81 Q>Q25 1.48 0.31 0.86 2.39 Q>Q25, T<Td CL-2175.WKS Channel No. 13 Left of centerline: 55 - 195 Drainage Area = 28.60 Acres Runoff Coeficient = 0.22 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i25 =8.00 Peak Runoff (cfs) = Q25 =50.34 Classification: Temporary Geometry: Trapezoidal Soil Class: Erodible Permissible Velocity (Vp) = n/a Left Side Slope (2) = 3.00 Right Side Slope (2) = 3.00 Bottom Width (B) = 4.00 Channel Slope = 1.00 Retardance d A Class (ft) (sq ft) n RipRap d50=6" (Class A) (Td = 2.0) 2.03 H 00 =10.00 Q 100 = 62.92 V Q T R (fps) VR (cfs) (lb/cu ft) Comments 20.48 0.0690 1.22 2.46 2.99 50.40 1.27 T<Td, Q>025 Channel Summary Permanent Lining: RipRap d50=6" (Class A) Temporary Lining: Geometry: Trapezoidal rlanf� !rix: 7 .YV rn feral V 4..1J111 `Y!IGV4\ Left Side Slope W) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 4.00 feet Channel Slope = 1.00 % C 1-2475. WKS Channel No. 16 Right of centerline: 30 - 120 Drainage Area = 28.60 Acres Runoff Coeficient = 0.22 Time of Concentration = Minimum Rainfall Intensity Factor (in/fir)= i25 =8.00 Peak Runoff (cfs) = Q25 =50.34 Classification: Temporary Geometry: Trapezoidal Soil Class: Erodible Permissible Velocity (Vp) = n/a Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 6.00 Channel Slope = 2.00 i100 =10.00 Q 100 = 62.92 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (lb/cu ft) Comments RipRap d50=6" (Class A) (Td = 2.0) 1.63 17.75 0.0780 1.09 2.86 3.11 50.74 2.03 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=6" (Class A) Temporary Lining: Geometry: Trapezoidal Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 6.00 feet Channel Slope = 2.00 % C2-2475.WKS Channel No. 17 Right of centerline: 120 - 220 Drainage Area = 28.60 Acres Runoff Coeficient = 0.22 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i25 =8.00 Peak Runoff (cfs) = Q25 =50.34 Classification: Temporary Geometry: Trapezoidal coil ria�. c�.,a;tiie Vvll Vgas.. Lr vVw1c. Permissible Velocity (Vp) = n/a Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 10.00 Channel Slope = 6.00 Retardance d A Class (ft) (sq ft) n RipRap d50=12" (Class 1) (Td = 4.0) 0.98 i100 =10.00 Q 100 = 62.92 V Q T R (fps) VR (cfs) (lb/cu ft) Comments 12.68 0.0780 0.78 3.97 3.11 50.40 3.67 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=12" (Class 1) Temporary Lining: Geometry: Trapezoidal Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 10.00 feet Channel Slope = 6.00 % C3-2475. WKS Channel No. 17 i Right of centerline: 320 - 440 Drainage Area = 28.60 Acres Runoff Coeficient = 0.22 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i25 = 8.00 i100 =10.00 Peak Runoff (cfs) = Q25 =50.34 0100 =62.92 Classification: Temporary Geometry: Trapezoidal Soil Class. =A:"I- Permissible Velocity (Vp) = nla Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 10.00 Channel Slope = 8.00 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (lblcu ft) Comments RipRap d50=15" (Class 1) (Td = 5.0) 0.91 11.58 0.0780 0.74 4.40 3.24 50.99 4.54 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=15" (Class 1) Temporary Lining: Geometry: Trapezoidal Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 10.00 feet Channel Slope = 8.00 % C5-2475. WKS Channei No. 18 Drainage Area = 0.25 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.5 Q25 =1.00 Classification: Permanent Geometry: V-Ditch C .;1 /^Inns• VVII Vlq „1.7, LI L- VVIU1 VVIUIG Permissible Velocity (Vp) = 4.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 5.17 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.44 0.58 0.0950 0.21 Tall Fescue "C" 0.58 1.01 0.1900 0.27 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.52 0.81 0.1040 0.25 Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 5.17 % i100 =10.00 Q 100 =1.25 V Q T (fps) VR (cfs) (Iblcu ft) Comments 1.25 0.26 0.73 V<Vp, Q>Q25 0.75 0.21 0.76 Q>Q25 1.28 0.31 1.04 1.68 Q>Q25, T<Td CL-2475, WKS Channel No. 19 Right of centeline: 0 - 284 Drainage Area = 0.60 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= Q = 4 i25 = 8.00 Peak Runoff (cfs) = Q2 = 1.2 Q25 =2.40 Classification: Permanent Geometry: Trapezoid Soil Class. Erodible Permissible Velocity (Vp) = 3.50 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 4.00 Channel Slope = 19.30 i100 =10.00 Q100 =3.00 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (Iblcu ft) Comments Tall Fescue "D" 0.21 0.93 0.0800 0.19 2.68 0.50 2.49 Tall Fescue "C" 0.29 1.35 0.1450 0.25 1.81 0.46 2.44 Straw w/net (Td = 1.45) 0.07 0.31 0.0280 0.07 4.00 0.28 1.23 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: Straw w/net Geometry: Trapezoid Depth (d): 2.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 4.00 feet Channel Slope = 19.30 % C4-2850. WKS V<Vp, Q>Q25 Q>Q25 0.89 Q>Q2, T<Td Channel No. 19 Right of centerline: 284 - 510 Drainage Area = 0.50 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= 12 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 1.00 Q25 =2.00 Classification: Permanent Geometry: Trapezoid Coil r^I-acr Erodible y Permissible Velocity (Vp) = 3.50 Left Side Slope (Z) = 4.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 5.17 Retardance d A Class (ft) (sq ft) n R Tail Fescue "D" 0.51 0.78 0.1000 0.24 Tall Fescue "C" 0.71 1.51 0.2400 0.33 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.32 0.31 0.0280 0.15 Channel Summary Permanent Lining: Tall Fescue Temporary Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: Trapezoid Depth (d): 2.00 feet Left Side Slope (z1) = 4.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 5.17 % i100 =10.00 Q100 =2.50 V Q T (fps) VR (cfs) (lblcu ft) Comments 1.31 0.32 1.02 V<Vp, Q>Q25 0.68 0.23 1.03 Q>Q25 3.43 0.52 1.05 1.03 Q>Q2, T<Td C3-2850. WKS Channel No. 20 Drainage Area = 0.64 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i2 = 4.00 i25 = 8.00 Peak Runoff (cfs) = Q2 = 1.28 025 =2.56 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 3.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 10.21 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.55 0.91 0.0670 0.26 Tall Fescue "C" 0.69 1.43 0.1200 0.33 Rip Rap d50=12" (Class 1) Center Drain (Td = 4.00) 0.59 1.04 0.0780 0.28 i100 =10.00 Q100 = 3.20 V Q T (fps) VR (cfs) (lb/cu ft) Comments 2.89 0.75 2.62 V<Vp, Q>Q25 1.88 0.61 2.68 Q>Q25 2.60 0.72 2.72 3.76 Q>Q25, T<Td Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=12" (Class 1) Center Drain Geometry: V-Ditch DeDenth lrW. nth 1-1 nn fast _. Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0,00 feet Channel Slope = 10.21 % C L-3250. WKS Channel No. 21 Drainage Area = 0.38 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.76 025 =1.52 Classification: Permanent Geometry: V-Ditch Coil r`lnss: v I v aao. Cr...�;kl- "Swnnc Permissible Velocity (Vp) = 3.00 Left Side Slope (Z) = 4.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 10.21 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.48 0.69 0.0790 0.23 Tall Fescue "C" 0.61 1.12 0.1500 0.29 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.47 0.66 0.0740 0.22 Channel Summary Permanent Lining: Tail Fescue Center Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 4.00 :1 Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 10.21 % i100 =10.00 0100 =1.90 V Q T (fps) VR (cfs) (lb/cu ft) Comments 2,24 0.51 1.55 V<Vp, Q>Q25 1.38 0.40 1.54 Q>Q25 2.36 0.52 1.56 2.99 Q>Q25, T<Td CR-3250. WKS Channel No. 22 Drainage Area = 0.60 Acres Runoff Coefecient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i2 = 4.00 i25 = 8.00 Peak Runoff (cfs) = Q2 = 1.2 Q25 =2.40 Classification: Permanent Geometry: V-Ditch . 13 viaa�. "Iwvulc Permissible Velocity (Vp) = 3.00 Left Side Slope (Z) = 2.00 Right Side Slope (Z) = 4.00 Bottom Width (B) = 0.00 Channel Slope = 10.21 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.54 0.87 0.0680 0.25 Tall Fescue "C" 0.68 1.39 0.1250 0.32 Rip Rap d50=12" (Class 1) Center Drain (Td = 4.00) 0.57 0.97 0.0780 0.27 1100 =10.00 0100 =3.00 V Q T (fps) VR (cfs) (lb/cu ft) Comments 2.81 0.72 2.46 V<Vp, Q>Q25 1.78 0.57 2.48 Q>Q25 2.54 0.68 2.48 3.63 Q>Q25, T<Td Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=12" (Class 1) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 2.00 :1 Right Side Slope (z2) = 4.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 10.21 % CL-3600.WKS Channei No. 23 Drainage Area = 0.20 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i2 = 4.00 i25 =8.00 Peak Runoff (cfs) = Q2 = 0.4 Q25 =0.80 Classification: Permanent Geometry: V-Ditch Soil Class: Erodible Permissible Velocity (Vp) = 3.00 Left Side Slope (Z) = 4.00 Right Side Slope (Z) = 2.00 Bottom Width (B) = 0.00 Channel Slope = 10.21 Retardance d A Class (ft) (sq ft) n R Tall Fescue "D" 0.41 0.50 0.1000 0.19 Tall Fescue "C" 0.54 0.87 0.2030 0.25 Rip Rap d50=9" (Class B) Center Drain (Td = 3.00) 0.42 0.53 0.1040 0.20 Channel Summary Permanent Lining: Tall Fescue Center Lining: Rip Rap d50=9" (Class B) Center Drain Geometry: V-Ditch Depth (d): 1.00 feet Left Side Slope (z1) = 4.00 A Right Side Slope (z2) = 2.00 :1 Bottom Width (b) = 0.00 feet Channel Slope = 10.21 % i100 =10.00 Q100 =1.00 V Q T (fps) VR (cfs) (lblcu ft) Comments 1.59 0.31 0.80 V<Vp, Q>Q25 0.94 0.24 0.82 Q>Q25 1.56 0.31 0.82 2.68 Q>025, T<Td CR-3630.WKS Channel No. 24 Drainage Area = 1.00 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall intensity Factor (in/hr)= i25 = 8.00 1100 =10.00 Peak Runoff (cfs) = Q25 =4.00 Q100 =5.00 Classification: Temporary Geometry: Trapezoidal Soil Class: Erodible Permissible Velocity (Vp) = nla Left Side Slope (Z) = 3.00 Right Side Slope (Z) = 3.00 Bottom Width (B) = 4.00 Channel Slope = 14.00 Retardance d A V Q T Class (ft) (sq ft) n R (fps) VR (cfs) (ib/cu ft) Comments RipRap d50=12" (Class 1) (fd = 4.0) 0.35 1.77 O.i040 0.28 2.32 0.66 4.10 3.06 T<Td, Q>Q25 Channel Summary Permanent Lining: RipRap d50=12" (Class 1) Temporary Lining: Geometry: Trapezoidal Depth (d): 2.00 feet Left Side Slope (z1) = 3.00 :1 Right Side Slope (z2) = 3.00 :1 Bottom Width (b) = 4.00 feet Channel Slope = 14.00 % C 1-3900. WKS ' Appendix B Rock Dam Design Computation t i i 1 Rock Dam - Sta 8+50 Drainage Area: Total Area = 1.33 Acres Total Disturbed Area = 1.33 Acres Runoff Coeflcient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i10 =5.00 Peak Runoff (cfs) = Q10 =3.33 Embankment Dimensions: Top Elevation = 1050.0 Feet Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 1048.5 Feet Bottom Width = 4.00 Feet Depth = 1.50 Feet Side Slope (ZA) = 2.00 Basin Volume Required Volume = 2,394 Cubic Feet i25 = 8.00 ON =10.00 Q25 = 5.32 Q100 =6.65 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 1047.5 841 785 785 785 1046.5 729 677 677 1,462 1045.5 625 577 577 2,039 1044.5 529 485 485 2,524 1043.5 441 Pool Depth = 4.00 Feet Available Volume = 2,524 cu ft, > 2,394 required. Basin Volume Top Elevation = 1050.0 Top Dimensions = 34' x 34' Bottom Elevation = 1043.5 Bottom Dimensions = 21' x 21' Trapping Efficiency Surface Area = 0.02 ac 0.01 acre per cfs= 0.03 ac Shape = Square Rock Dam - Sta 12+25 Drainage Area: Total Area = 1 Ultll 1`IIGtl - A. LC A..�.,.. V.JV Acres Total Disturbed Area = 0.56 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i10 =5.00 Peak Runoff (cfs) = Q10 =1.40 Embankment Dimensions: TonTon Elevation = r, �.. , ....... 1 nS5 n poot ..,..- - . ,,.,. Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 1053.5 Feet Bottom Width = 4.00'Feet Depth = 1.50 Feet Side Slope (ZA) = 2.00 Basin Volume Required Volume = 1,008 Cubic Feet i25 =8.00 i100 =10.00 Q25 =2.24 Q100 =2.80 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 1052.5 400 362 362 362 1051.5 324 290 290 652 1050.5 256 226 226 878 1049.5 196 170 170 1,048 1048.5 144 Pool Depth = 4.00 Feet Available Volume = 1,048 cu ft, > Basin Volume Top Elevation = 1055.0 Top Dimensions = 25' x 25' Bottom Elevation = 1048.5 Bottom Dimensions = 12' x 12' 1,008 required. Trapping Efficiency Surface Area = 0.01 ac 0.01 acre per cfs= 0.01 ac Shape = Square RD-1225.WKS Rock Dam - Sta 15+50 Drainage Area: Total Area = 0.56 Acres Total Disturbed Area = 0.56 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inthr)= i10 =5.00 Peak Runoff (cfs) = Q10 =1.40 Embankment Dimensions: Top Elevation = 1020.0 Feet Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 1018.5 Feet Bottom Width = 4.00 Feet Death = 1.50 Feet Side Slope (ill) = 2.00 Basin Volume Required Volume = 1,008 Cubic Feet i25 =8.00 i100 =10.00 Q25 =2.24 0100 =2.80 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 1017.5 600 532 532 532 1016.5 464 400 400 932 1015.5 336 276 276 1,208 1014.5 216 Pool Depth = 3.00 Feet Available Volume = 1,208 cu ft, > Basin Volume Top Elevation = 1020.0 Top Dimensions = 60' x 15' Bottom Elevation = 1014.5 Bottom Dimensions = 54' x 4' RD-1550 WKS 1,008 required. Trapping Efficiency Surface Area = 0.01 ac 0.01 acre per cfs= 0.01 ac Shape =Rectangle Rock Dam - Sta 19+00 Drainage Area: Tuial Area = 0.48 Acres Total Disturbed Area = 0.48 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (inlhr)= i10 =5.00 Peak Runoff (cfs) = Q10 =1.20 Embankment Dimensions: Top Elevation = 990.0 Feet Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 988.5 Feet Bottom Width = 4.00 Feet Depth = 1.50 Feet Side Slope (ZA) = 2.00 Basin Volume Required Volume = 864 Cubic Feet i25 = 8.00 i100 =10.00 Q25 =1.92 Q100 =2.40 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (GU ft) (cu ft) 987.5 600 532 532 532 986.5 464 400 400 932 985.5 336 276 276 1,208 984.5 216 Pool Depth = 3.00 Feet Available Volume = 1,208 cu ft, > Basin Volume Top Elevation = 990.0 Top Dimensions = 60' x 15' Bottom Elevation = 984.5 Bottom Dimensions = 54' x 4' 864 required. Trapping Efficiency Surface Area = 0.01 ac 0.01 acre per cfs= 0.01 ac Shape = Rectangle nn 4nnn 1AIL/O RU' IiTVV. rrnv Rock Dam - Sta 22+00 Drainage Area: ..L..1 A yea _ 1 ota P% — A 9L A ���� V.Jj /1l.ICJ Total Disturbed Area = 0.35 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= i10 =5.00 Peak Runoff (cfs) = Q10 =0.88 Embankment Dimensions: Ton Elevating = 071 n mzo# .,r " - ....,. Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 969.5 Feet Bottom Width = 4.00 Feet Depth = 1.50 Feet Side Slope (Z:1) = 2.00 Basin Volume Required Volume = 630 Cubic Feet i25 = 8.00 i 100 =10.00 Q25 =1.40 Q100 =1.75 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 968.5 350 307 307 307 967.5 264 225 225 532 966.5 186 151 151 683 965.5 116 Pool Depth = 3.00 Feet Available Volume = 683 cu ft, > Basin Volume Top Elevation = 971.0 Top Dimensions = 40' x 15' Bottom Elevation = 965.5 Bottom Dimensions = 29' x 9' 630 required. Trapping Efficiency Surface Area = 0.01 ac 0.01 acre per cfs= 0.01 ac Shape = Rectangle RD-2200. WKS Rock Dam - Sta 24+00 Drainage Area: Total Area = 0.52 Acres Total Disturbed Area = 0.17 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor (in/hr)= ii0 =5.00 Peak Runoff (cfs) = Q10 =1.30 Embankment Dimensions: Top Elevation = 949.0 Feet Top Width = 5.00 Feet Upstream Slope (ZA) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 947.5 Feet Bottom Width = 4.00 Feet nanth = i r%n Faai Side Slope (ZA) = 2.00 Basin Volume Required Volume = 306 Cubic Feet i25 =8.00 i100 =10.00 025 =2.08 Q100 =2.60 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 946.5 250 217 217 217 945.5 184 155 155 372 944.5 126 101 101 473 943.5 76 Pool Depth = 3.00 Feet Available Volume = 473 cu ft, > Basin Volume Top Elevation = 949.0 Top Dimensions = 30' x 15' Bottom Elevation = 943.5 Bottom Dimensions = 19' x 4' 306 required. Trapping Efficiency Surface Area = 0.01 ac 0.01 acre per cfs= 0.01 ac Shape =Rectangle RD-2400.WKS ' Rock Dam - Sta 28+20 Drainage Area: Total Area = 36.00 Acres Total Disturbed Area = 9.00 Acres Runoff Coeficient = 0.31 Time of Concentration = Minimum ' Rainfall Intensity Factor (in/hr)= HO =5.00 Peak Runoff (cfs) = Q10 =55.80 Embankment Dimensions: Top Elevation = 935.0 Feet Top Width = 12.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 933.0 Feel Bottom Width = 26.00 Feet Depth = 2.00 Feet Side Slope (Z:1) = 3.00 i25 = 8.00 ill 00 =10.00 Q25 = 89.28 Q 100=111.60 Basin Volume Required Volume = 16,200 Cubic Feet (based on disturbed area) Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 932.0 7,944 7,630 7,630 7,630 931.0 7,316 7,015 7,015 14,645 930.0 6,713 6,424 6,424 21,069 929.0 6,135 5,859 5,859 26,927 928.0 5,582 5,312 5,312 32,239 927.0 5,042 Pool Depth = 4.00 Feet Available Volume = 32,239 cu ft, > 16,200 required. Basin Volume Trapping Efficiency Top Elevation = 935.0 Surface Area = 0.25 ac " Top Dimensions = 105'x105' 0.01 acre per cfs= 0.56 ac Bottom Elevation = 927.0 Bottom Dimensions = 73' x 73' Shape =Square Trapping efficiency of Rock Dam 28+20 works in series with Rock Dam - Sorrow Area RD-2820.WKS i I I Rock Dam - Culvert 36+00 Drainage Area: Total Area = i .00 Acres Total Disturbed Area = 0.80 Acres Runoff Coeficient = 0.50 Time of Concentration = Minimum Rainfall Intensity Factor Onlhr)= i10 =5.00 Peak Runoff (cfs) = Q10 =2.50 Embankment Dimensions: 7.... C1... ..,+:.... 1 op GIGVQUVI4 = n-ya n =ee& Ulu.V rGGI Top Width = 5.00 Feet Upstream Slope (Z:1) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 974.5 Feet Bottom Width = 4.00 Feet Depth = 1.50 Feet Side Slope (Z:1) = 2.00 Basin Volume Required Volume = 1,800 Cubic Feet i25 = 8.00 i100 =10.00 Q25 =4.00 0100 =5,00 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 973.5 676 626 626 626 972.5 576 530 530 1,156 971.5 484 442 442 1,598 970.5 400 362 362 1,960 969.5 324 Pool Depth = 4.00 Feet Available Volume = 1,960 cu ft, > Basin Volume Top Elevation = 976.0 Top Dimensions = 31' x 31' Bottom Elevation = 969.5 Bottom Dimensions = 18' x 18' 1,800 required. Trapping Efficiency Surface Area = 0.02 0.01 acre per cfs= 0,03 Shape =Square RD-3600.WKS 1 1 1 1 1 1 1 1 Rock Dam - Borrow Area Drainage Area: Total Area = 9.00 Acres Total Disturbed Area = 9.00 Acres Runoff Coeficient = 0.31 Time of Concentration = Minimum Rainfall intensity Factor (in/hr)= ill0 =5.00 i25 =8.00 Peak Runoff (cfs) = Q10 =13.95 Q25 =22.32 Embankment Dimensions: Top Elevation = 960.0 Feet Top Width = 12.00 Feet Upstream Slope (ZA) = 2.00 Downstream Slope (Z:1) = 3.00 Spillway Dimensions: Crest Elevation = 958.0 Feet Bottom Width = 12.00 Feet Depth = 2.00 Feet Side Slope (Z:1) = 3.00 Basin Volume Required Volume = 16,200 Cubic Feet i100 =10.00 0100 =27.90 Cum. Elevation Area Average Volume Volume (ft) (sq ft) Area (cu ft) (cu ft) 957.0 6,870 6,422 6,422 6,422 956.0 5,973 5,524 5,524 11,946 955.0 5,075 4,798 4,798 16,744 954.0 4,521 4,245 4,245 20,988 953.0 3,968 3,692 3,692 24,680 952.0 3,415 Pool Depth = 5.00 Feet Available Volume = 24,680 cu ft, > 16,200 required. Basin Volume Trapping Efficiency Top Elevation = 950.0 Surface Area = 0.16 ac'" Top Dimensions = 190' x 80' 0.01 acre per cfs= 0.14 ac Bottom Elevation = 952.0 Bottom Dimensions = 80' x 40' Shape = Half Moon " Trapping efficiency of Rock Dam 28+20 works in series with Rock Dam - Borrow Area RD-B^RR.::ri4S Appendix C Construction Specifications and Maintenance Plans i i Construction Specifications and Maintenance Plans Practice o. Vegetative Screen - Trees and Shrubs 6.02 Conveyance Channels 6.30 6.31 Slope Drains 6.32 Outlet Stabilization Structures 6.41 Temporary Sediment Traps 6.60 Sediment Fence (Silt Fence) 6.62 Rock Dani 6.63 Approved Revegetation Plan (Emsting) i VEGETATIVE SCREEN - TREES AND SHRUBS (Practice 6.02) Construction Specifications Trees Planting bare -root tree seedlings -Bare -root seedlings should be handled only while dormant in late winter, early spring, or after leaf fall in autumn. Availability of stock - usually limits planting to winter or spring. Store packages of seedlings in a shaded location out of the wind. If it is necessary to store moss -packed seedlings for more than two weeks, add one pint of water per package. Do not add water to clay -treated seedlings. Do not allow roots to dry during planting by carrying seedlings exposed to air and sun. Keep moss -packed seedlings in a container packed with wet moss or filled with thick muddy water. Cover clay -treated seedling vAith vet burlap. With a tree planting bar or spade, make a notch deep enough to accommodate the roots. Place the roots in the notch to tine same depth as in the nursery, then firm soil around roots by pressing the notch closed. Water immediately and mulch the area within 2 ft. of the plant. Several weeks after planting, broadcast a handful of 10-10-10 fertilizer around each plant, at least 1 ft. from the base. On large sites where slopes are not prohibitive bare -root seedlings can be efficiently planted in furrows usung a tractor -drawn vegetable transplanter. Planting balled-and-burlapped or container -grown trees -Late fall (Nov. -Dec.) is the preferred planting time for deciduous trees and evergreens, although they may be planted year-round. Avoid summer planting. Keep the soil around the roots moist until planting. Branches should be bound with soft rope to prevent damage during transport. Each planting hole must be deep and wide enough to allow proper placement of the root ball. Ideally, the hole should be twice the size of the root ball. When digging the hole, keep topsoil separate from subsoil. If the subsoil is high in clay, allow extra room 1 1 (one-half again the heist of the root ball). Back -fill the hole with enough topsoil or peat moss to position the base of the tree at the same level as in the nursery. If the plant is in a container, carefully remove it, taking the soil surrounding the ' roots with it. This may require cutting the container. Loosen the twine and burlap at the top of balled-and-burlapped plants and check to make sure that no other wrapping is present before planting. Before replacing subsoil, mix it with one-third peat moss or well -rotted manure. Baclfall the hole, firming the soil as it is replaced, and leave a depression around the trunk within the excavated area to hold water. Cover the base of the trunk to the same level as ' before it was removed. Water thoroughly and rewater as necessary to keep the roots moist. 1 Stake small trees with vertical stakes driven into the ground, just beyond the root ' ball. Secure large trees with guy wires. Cushion wire, where it contacts the tree, with rubber hose. Wrap the trunks of young trees to protect them from sunburn and pests. i Fertilize trees in late fall or early spring, before leaves emerge. Using a punchbar, crowbar, or auger, make holes IS inches deep and about 2 feet apart around the drip line of each tree. Distribute the fertilize evenly among the holes to bring it in contact with tree roots, and close. Shrubs Obtaining shrubs -Shrubs are normally planted as bare -root stock or container - grown plants. Container -grown seedlings, 1 year old, are usually recommended for their ease of planting, and cost. Planting is best done in early fall or early spring. Follow the general procedures for tree care and planting. Maintenance Maintenance requirements depend on the particular shrub. In all cases watering is important in getting plants established. Once established, fertilizing every 3 years is generally sufficient. A heavy layer of mulch around the base of each plant reduces weeds and retains moisture. Mulch may consist of woodchips, sawdust, pine needles, or straw. CONVEYANCE CHANNELS (Practice 6.30 and 6.31) Construction Specification Grass -Lined Channel 1. Remove all trees, brush, stumps, and other objectionable material for the foundation area and dispose of properly. 2. Excavate the channel and shape it to an even cross section as designed. When staking, indicate a 0.2 feet over cut around the channel perimeter for silting and bulking. 3. Grade soil away from channel so that surface water may enter freely. 4. Place temporary linings and apply lime, fertilizer, and seed the channel and adjoining areas in accordance the vegetation plan. Riprap Channels 1. Clear the foundation area of trees, stumps, roots, loose rock, and other objectionable material. 2. Excavate the channel and shape it to an even cross section as designed wit a lining thickness of 1.5 times the d50 riprap size. 3. Place filters and beddings to line and grade immediately after slope preparation in the manner specified. 4. The filter layer will be a minimum of six inches thick with size code NC No. 57. 5. Perform all channel construction to keep erosion and water pollution to a minimunL 6. Unmediately upon completion of the channel, vegetate all disturbed areas or otherwise protect them against soil erosion. Maintenance Inspect channels at regular intervals as well as after major rains, and make repairs promptly. Give special attention to the outlet and inlet sections and other points where concentrated flow enters. Carefully check stability at road crossings and look for indications of piping, scour holes, or bank failures. Make repairs immediately. Maintain all vegetation adjacent to the channel in a healthy, vligorous condition to protect the area from erosion and scour during out -of -bank flow. 1 SLOPE DRAL 1S (Practice 6.32) Construction Specification A common failure of slope drains is caused by water saturating the soil and seeping along the pipe. This creates voids from consolidation and piping and causes washouts. Proper backfilling around and under the pipe "haunches" with stable soil material and hand compacting in 6-inch lifts to achieve firm contact between the pipe and the soil at all points will eliminate this type of failure. 1. Place slope drains on undisturbed soil or well compacted fill at locations and elevations shove on the plans. 2. Slightly slope the section of pipe under the dike toward its outlet. 3. Hand tamp the soil under and around the entrance section in lifts not to exceed 6 inches. 4. Ensure that fill over the drain at the tope of the slope has minimum dimensions of 1.5 ft. depth, 4 ft. top width, and I I side slopes. S. Ensure that all slope drain connections are watertight. 6. Ensure that all fill material is well -compacted. Securely fasten the exposed section of the drain. with grommets or stakes spaced no more than 10 ft. apart. 7. Ex -tend the drain beyond the toe of the slope and adequately protect the outlet from erosion. �. Make the settled, compacted dire ridge no less than 1 ft. above the top of the pipe at every point. 9. Immediately stabilize all disturbed areas following construction. Maintenance Inspect the slope drain and supporting, diversion after every rainfall and promptly make necessary repairs. When the protected area has been permanently stabilized, temporary measures may be removed, materials disposed of properly and all disturbed areas stabilized appropriately. 1 OUTLET STABILIZATION STRUCTURE (Practice 6.41) Construction Specifications 1. Ensure that the subgrade for the filter and riprap follows the required lines and grades shown in the plan. Compact any fill required in the subgrade to the density of the surrounding undisturbed waterial. How areas in the subgrade on undisturbed soil may also be filled by increasing the riprap thickness. 2. The riprap and gravel filter must conform to the specified grading limits shown on the plans. 3. Filter cloth, when used, must meet designrequirements and be properly protected from punching or tearing duriug installation. Repair any damage by removing the riprap and placing another piece of filter cloth over the damaged area. All colluecting joints should overlap a minimum of 1 ft. If the damage is extensive, replace the entire filter cloth. 4. Riprap may be placed by equipment, but take care to avoid damaging the filter. 5. The minimum thickness of the riprap should be 1.5 times the maximum stone diameter. 6. Riprap may be field stone or rough quarry stone. It should be hard, angular, highly weather -resistant and well graded. 7. Construct the apron on zero grade with no overfall at the end. Make the top of the riprap at the downstream end level with the receiving area or slightly below it. n r _ O. nI1S1IC that .I1_ aplull is properlya_uL'�._11G_ua With a1L1G re eIV1_118_ '�LI_G_1 _1�111_11LU.1 PlUIC41LUIy straight throughout its length. If a curve is needed to fit site conditions, place it in the upper section of the apron. 9. Immediately after construction, stabilize all disturbed areas with vegetation (Practices 6.10, Temporary Seeding, and 6.11, Permanent Seeding). Maintenance Inspect riprap outlet structures after heavy rains to see if any erosion around or below the riprap has taken place or if stones have been dislodged. Immediately make all needed repairs to prevent further damage. TEMPORARY SEDJTvIENT "TRAPS (Practice 6.60) Construction Specifications 1. Clear, grub, and strip the area under the embankment of all vegetation and root mat. Remove all surface soil containing high amounts of organic matter anrd ctnrl-nila nr rdicrnrico of it nrnnardv 2. Ensure that fill material for the embankment is fee of roots, woody vegetation, organic matter, and other objectionable material. Place the fill in iiifts not to exceed nine inches and machine compact it. Over -nil the embankment six inches to allow for settlement. 3. Construct the outlet section in the embankment. Protect the connection between the riprap and the soil from piping by using filter fabric or a keyway cutoff trench between the riprap structure and the soil. * Place the filter fabric between the riprap and soil. Extend the fabric across the spillway foundation and sides to the top of the dam; or * Excavate a keyway trench along the centerline of the spillway foundation extending up the sides o the height of the dam_ The trench should be at least two feet deep and two feet wide with 1:1 side slopes. 4. Clear the pond area below the elevation of the crest of the spillway to facilitate sediment clean -out. 5. All cut and fill slopes should be 2:1 or flatter. 6. Ensure that the stone (drainage) section of the embankment has a minimum bottom width of three feet and maximum side slopes of 1:1 that extend to the bottom of the spillway section. 7. Construct the minimum finished stone spillway bottom width, as shown oil the plans, with 2.1 side slopes extending to the tope of the over -filled embankment. Keep the thickness of the sides of the spillway outlet structure at a minimum of 21 inches. The weir must be level and constructed to grade to assure design capacity. 8. Material used in the stone section should be a well -graded mixture of stone with a d50 size of nine inches (Class B erosion control stone is recommended) and a maximum stone size of 14 inches. The stone may be machine placed and the smaller stone worked into the voids of the larger stones. The stone should be hard, angular, and higltly weather resistant. 9. Ensure that the stone spillway outlet section extends downstream past the toe of the embankment zero grade Nvith length equal to spillway height. Also ensure that drainage flows in the direction indicated on the plan sheet. Keep the edges of the stone outlet section flush with the surrounding ground and shape the center to confine the outflow stream. 10. Direct emergency bypass to natural, stable areas. Locate bypass outlets so that flow will not damage the embankment. 1 I. Stabilize the embankment and all disturbed areas above the sediment pool and downstream from the trap immediately after construction. 12. Mark the distance from the top of the spillway to the sediment clean -out level (one-half the design depth) in the field. Maintenance Inspect temporary sediment traps after each period of significant rainfall. Remove sediment and restore the trap to its original dimensions when the sediment has accmilulated to one-half the design depth of the trap. Place the sediment that is removed in tite designated disposal area and replace the contaminated part of the gravel facing. Check the structure for damage for erosion or piping. Periodically check the depth of the spillway to ensure it is a minimum of 1.5 feet below the low point of the ' embankment. Immediately fill any settlement of the embankment slightly above design grade. Any riprap displaced from the spillway must be replaced immediately. U After all sediment -producing areas have been permanently stabilized, remove the structure and all unstable sediment. Smooth the area to blend with the adjoining areas and stabilize properly. SEDIMENT FENCE (SELT FENCE) (Practice 6.62) ■ Construction S_necifical ion Materials 1 1 TTcP -a cvmtbF-tie- filter r-itvrir nr n Tvamnncic cbppt of nnlvmrnnNAPnP nvrinn nnlvPctar nr polyethylene yarn, which is certified by the manufacturer or supplier as conforming to ' the requirements shown in Table 6.62b. 3yntnetic filter raornc should contain ultraviolet ray inhibitors and stabilizers to provide a mininium of 6 montlts of exTected usable construction life at a temperature range of 0 to 1200 F. 2. Ensure that posts for sediment fences are either 4-inch diameter pine, 2-inch diameter oak, or 1.33 lb/linear feet steel with a minimum length of 4 ft. Make sure that steel posts have projections to facilitate fastening the fabric. 3. For reinforcement of standard strength filter fabric, use wire fence with a minimum 14 gauge and a maximum mesh spacing of 6 inches. Table 6.62b 'Specitcations t•or'3e(liment Pence Paonc Physical Property Requirements Filtering Efficiency 85% (min) Tensile Strength at 20% (max.) Elongation Standard Strength - 30 lb/lin in (thin) Extra Strength - 50 lb/lin in (mist) Slurry Flow Rate 0.3 gaVsq ft/min (min) Construction 1. Construct the sediment bamer of standard strength or extra strength it filter fabrics. 2. Ensure that the height of the sediment fence does not exceed 18 inches above the ' ground surface. (Higher fences may impound volumes of water sufficient to cause failure of the structure.) ' 3. Construct the filter fabric from a continuous roll cut to the length of the bamer to avoid joints. When joints are necessary, securely fasten the filter cloth only at a support post with overlap to the next post. 1 4. Support standard strength filter fabric by v ire mesh fastened securely to the upslope side of the posts using heavy duty wire staples a least 1 inch ton-, or tie wires. Extend the wire mesh support to the bottom of the trench. 5. When a wire mesh support fence is used, space posts a maximum of 8 ft. apart. Support posts should be driven securely into the ground to a minimum of 18 inches. 6. Extra strength filter fabric with 6-ft. post spacing does not require wire mesh support fence. Staple or wire the filter fabric directly to posts. 7. Excavate a trench approximately 4 inches wide and 8 inches deep along the proposed line of posts and upslope from the barrier. r„ 8. nackriii the trench with compacted soil or gravel placed over the niter fabric. 9. Do not attach filter fabric to existing trees. Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any required repairs immediately. Should the fabric of sediment fence collapse, tear, decompose or become ineffective, replace it promptly. Replace burlap every 60 days. Remove sediment deposits as necessary to provide adequate storage volume for the next rain and to reduce pressure on the fence. Take care to avoid undermining the fence during cleanout. n_-----'_ -71 C__. _i__� �:_1_ --- J --`-t_t- --�:�__�. 1_�__:._ J L��_ .I- I�eL1UVG tLL. 1Gll[�lll� Watell'd1J d1LU Lwhwu1G JGULL CUL UG�JUJILJ &UU U11118 rile area to grade and stabilize it after the contributing drainage area has been properly stabilized. i i ROCK DANI (Practice 6.63) Construction Specifications Clear the areas under the embankment and strip of roots another objectionable m'3tP1iAI rlal'lNr rla�rina tha ra:arvrnir oron until tha rlgm is in nlara ...a..v•aua. ,✓v.,.T ...v.... ...J .i.. ....a.... v.l .... .... ...�.... �.... ......�. .... r.....vv. 2. Cover the foundation area including the abutments with extra -strength filter fabric before backfilling with rock. If a cutoff trench is required, excavate at center line oz aam, extending all the way up we earrn abutrlicuLs. Apply hirer zaoriU under me rockfill embankment, from the upstream edge of the dam to the downstream edge of the apron, Overlap fill material a minimum of 1 foot at all joints, with the upstream strip laid over the downstream strip. 3. Construct the embankment with well -graded rock and gravel to the size and dimensions shown on the drawings. if it important that rock abutments be at least 2 feet higher than the spillway crest and at least 1 foot higher than the dam, all the way to the downstream toe, to prevent scour and erosion at the abutments. 4. Sediment -laden water from the construction site should be diverted into the basin reservoir at the furthest area from the dam. 5. Construct the rock darn before the basin area is cleared to minimize sediment yield from construction of the basin. Stabilize immediately all areas disturbed during the construction of the dam except the sediment pool (References: Surface Stabilization). 6. Safety - Sediment basins should be considered dangerous because they attract children. Steep side slopes should be avoided. Fences with warning signs may be needed if trespassing is likely. All state and local requirements must be followed. Maintenance Check sediment basins after each rainfall. Remove sediment and restore original volume when sediment accumulates to about one-half the design volume. Check the structure for erosion, piping, and rock replacement after each significant rainstorm and repair immediately. Remove the structure and any unstable sediment immediately after tll.e construction site has been permanently stabilized. Smooth the basin site to blend with the surrounding area and stabilize. All water and sediment should be removed from the basin prior to dam removal. Sediment should be placed in designated disposal areas and not allowed to flow into streams or drainage ways during structure removal. Elkin QLarr�v Surry County AEVEGA TA TION PLAN Spring -Fall -Winter Seed Mixes SPRING RATE: March - June Tall Fescue 30 - 40 Sericea Lespedeza (Scarifield) 40 - 50 Or White Clover 8 - 10 Hulled Common Bermuda Grass 10 Or Weeping Love Grass 4-5 FALL RATE: (Mid) August - October Rye grain 30 Tall Fescue 70 Sericea Lespedeza (Unhulled-Unscarified) 40 - 50 lbs, e rnr acre lbs:-per acre lbs. per acre lbs. per acre lbs. per acre lbs. per acre lbs. per acre lbs. per acre WINTER RATE: November - February Rye grain 30 lbs.'per acre Unhulled Bermuda Grass 10 lbs. per acre Unscarified Sericea Lespedeza 50 - 60 lbs. per acre Tali Fescue 70 lbs. per acre FERTILIZER ALL SEASONS 10-20-20 600- lbs. per acre Lime 4000 lbs. per acre Mulch 70 bales per acre Mulch to be anchored by one of the following methods: 1. Crimping with mulch anchoring tool; or 2. Tack with asphalt emulsion - 400 gal. per acre. REVEGETATION AND/OR REFORESTATION PLAN APPROVED BY: SIGNATUREj�.r TITLE �ssr L9V[VC"P.N�sT AGENCY &L� ��cny�axL DATE I2q tq' 9 D rt I Appendix D SR1142 Relocation - NCDOT and Surry County Approvals 1 F, 1 STATE OF NORTH CAROI.INA DEPARTMENT OF TRANSPORTATION ' JAME5 B. HUNT JR. DIVISION OF HIGHWAYS GOVERNOR ELKIN DISTRICT OFFICE P. O. BOX 558 ELKIN, NORTH CAROLINA 28621 T_.�.. '1A 1 nnc June 24, 177V 1 i 1 Mr. Phillip Baily, P. E. Marshall Miller and Associates Bluefield Industrial Park P. O. Box 848 Bluefield, Virginia 24605-0848 Re: Proposed Relocation of SR1142 (Elkin Wildlife Road) Surry County, North Carolina Dear Mr. Bally: GAR AND B. GARRETT JR. SECRETARY We have reviewed your final plans for the relocation of SR1142 along the west boundary of Vulcan Quarry and approve this relocation with the following conditions: • All costs involved in the relocation will be at the expense of Vulcan Materials • An abandonment petition will be submitted by Vulcan Materials for the existing SR1142 between Station 0+00 and Station 39+00 and shall be approved by the Surry County Commissioners • l n addition petition for the relocation between Station 0+00 and Station 39+00 will be submitted by Vulcan Materials and shall be approved by the .Surry County Commissioners • A fifty (50) foot right-of-way shall be dedicated to the North Carolina l?ePartment ofTransportalion for the relocated section • All work will be accompli4ed according tp NCDOT Specifications and DOT will be allowed to inspect the work in progress Should you have questions or need additional information, please call. 9 Sincerely, W. O. Atkins, P. E. District Engineer WOA/Jf-IM cc: W. E. Hoke, P. E., NCDOT R. M. Freeman, P. E., NCDOT Chris Scott, Vulcan Materials Tim Hendrix, Vulcan Materials tCLIFi ON JESSUP, Chairman Sk HAYDEN iviOXLEY WAYNE DRAUGHN, Vice Chair-man's �� CURTIS TAYLOR PETE TEMPLETON DONNIE GAMMONS JOE FREEMAN N V [ BYRON WOLFE PHILIP SNOW C� �770 TERESA KINNEY Planning Director SURRY COUNTY PLANNING BOARD ' 118 Harnby Street, Suite 147 Dobson, North Carolina 27017 ' 910-401-8350 August 26, 1996 1 RE: Abandonment of portion State Road 1142 TO ALL PROPERTY OWNERS ADJOINING STATE ROAD 1142 Dear Property Owner: Please find enclosed a public notice and supplemental information required by North Carolina General Statue (G.S.) 153A-241, regarding intention of road abandonment requested by the Surry ' County Board of Commissioners. The road considered for abandonment is a portion of State Road 1142, Elkin Wildlife Road (see attached map). Before the road is abandoned, a new section of State Road 1142 will be constructed and dedicated to the State of North Carolina for public use. ' According to G.S. 153A-241 each adjoining property owner, along the road, will be notified by registered or certified mail, regarding the request for abandonment. A public hearing has been scheduled by Surry County Board of Commissioners for 6:15 P.M. on September 16, 1996 at the Surry County Government Center, 118 Hamby Road, Dobson, North Carolina. If you are from out of state, you may designate a spokesperson and/or you may submit written comments. Written comments must be received by September 13, 1996. Any written comments should be addressed ' to the Surry County Board of Commissioners, 118 Hamby Road, Dobson, North Carolina 27017, faxed to 910-401-8354, or E-mail- tkinney@sunbelt.net. ' Please review the attached information, carefully. If you need additional information, you may call 910-401-8350 or Elkin exchange 910-366-8350. ' Tn�rereIy, `fieresa E. Kinnel ' Director of Planning & Development pc: Board of Commissioners ' 'Dennis Thompson Edwin M. Woltz ' Vulcan Materials Attachments: Area Map Public Hearing Notice ' Resolution ELKIN WILDLIFE ROAD (SR 1142) _ III ABANDONMENT & RELOCATION 77 21 77 -If PRQwWO u 1142 nST WE NELMAWN a <l ROAD .mNaftm.ne..0 tat 42 ELKIN SR Elkin Ouerry /j PARKS 'f SCALE: 1" = 1000' PUBLIC NOTICE SURRY COUNTY, NORTH CAROLINA TARE NOTICE that the Surry County Board of Commissioners expressed its intent to request abandonment of a portion of State Road 1142 by the North Carolina Department of Transportation, Division of Highways. Upon affirmative action of abandonment by the North Carolina Department of Transportation, the Surry County Board of Commissioners further expressed its intent to close the section of abandoned road way. The portion of State Road 1142 which is proposed to be abandoned and closed lies between Station 0 + 00 and Station 30 + 00 as indicated on plat of survey on file in the Surry County Planning Department which is available for review during normal business hours. PETITIONER, Vulcan Materials Company intends to construct to ' DOT specifications an alternative section of road way which will be dedicated to the State of North Carolina and which will replace the abandoned and closed section - of State Road 1142. Neither the abandonment nor closure will occur until replacement section of 1 road way is open and has been accepted the North Carolina Department of Transportation. THE SURRY COUNTY Board of Commissioners by Resolution instructed the Planning Department to cause certified mailings to be forwarded to each owner of property along State Road 1142 giving them notice of petition for abandonment and closure and designating the alternative route proposed. Further, the Surry County Board of Commissioners directed that (1) this notice be published in a newspaper of general circulation within the County, once a week for 1. L � � � ! 'l i L _ I 'f 5 de �- i L l 1 J. ��ii�� l � l weeks � 1. j provide iio���:c o� a pi.iUii� itc��.L.itcj Ui1 1.1115 issue scheduled at 6:15 P.M. on the 16th day of September, 1996 in the Commissioners, Room of the Surry County Government Center, 118 Hamby Road, Dobson, North Carolina, and (3) notice of said public hearing to be included in the certified mailing referenced above. The public hearing will allow interested persons to appear with respect to whether the closing and abandonment would be detrimental to the public interest or to any individual property rights. THIS is the 21st day of August, 1996. Edwin M. Woltz, County Attorney 348 N. South Street Mount Airy, N.C. 27030 ( 910 ) 786--5556 s I NOKTs cAROLINA ) RESOLUTION TO ABANDON A PORTION } OF STATE ROAD 1142 SURRY COUNTY ) ■ WHEREAS, Vulcan Materials Company has petitioned the Surry County Board of Commissioners to request that the Board of Transportation to change the location of a section of State Road 1142 and to also abandon a portion of State Road 1142; AND, WHEREAS, State Road 1142 is a road in the State's secondary system; AND, WHEREAS, such proposed relocation and abandonment appears to be in the best interest of the people of Surry County; NOW, THEREFORE, be it resolved by the Surry County Board of Commissioners that: 1. The Board of Transportation is hereby requested to approve the relocation of a portion of State Road 1142 and to abandon the existing portion of State Road 1142 which would be superseded by the new construction. The portion of State Road 1142 that the Board of Commissioners request be abandoned lies between Station 0 + 00 and Station 30 + 00 as indicated on plat of survey on file in the Surry County Planning Department which is available for review during normal business hours. 2. The newly proposed section of State Road 1142 which the Board of Commissioners seeks the Department of Transportation to annrove i c al cn i nriiratar-1 nn rii at- nn fi 1 a i n t-hc, Ciirry (`rein+i, Planning Department which is- available for review during normal business hours. 3. Such Department of Transportation abandonment occur contemporaneously with the approval of the new section of State Road 1142 as shown on referenced plat. 4. That upon abandonment of said portion of State Road 1142 by the Board of Transportation, the Surry County Board of Commissioners shall proceed with closure of the abandoned portion pursuant to N.C.G.S. 153A--241. THIS IS THE f ?-1�jU DAY OF AUGUST, 1996. COUNTY OF SURRY Jo�f Sprin o e, Chairman 1 NORTH CAROLINA, SORRY COUNTY. I, 0 /�J. H%N�i� , Notary Public for said County and ! State, certify that LINDA WILKINS, Clerk to the BURRY COUNTY BOARD OF COMMISSIONERS, personally appeared before me and certified that the foregoing instrument was executed in the name of SURRY COUNTY 1 by JOHN SPRINGTHORPE, III, Chairman of the SURRY COUNTY BOARD OF COMMISSIONERS, and that she, LINDA WILKINS, Clerk to the Board, did attest to said execution and did affix the BURRY COUNTY Seal to said instrument; and that the execution of said instrument on ! behalf of SURRY COUNTY was authorized by an appropriate resolution of the SURRY COUNTY HOARD OF COMMISSIONERS. 1 Witness my hand and official seal, this the 21) day of i 19d� Notary Public 1 My Commission Expires: Siy/C/y ! (B� 1 ! 1 1 1 1 1 1 NORTH CAROLINA RESOLUTION TO CLOSE A PORTION SURRY COUNTY ) OF STATE ROAD 1.1.42 WHEREAS, Vulcan Materials Company has petitioned the Surry County Board of Commissioners to take action pursuant to N.C.G.S. 153A-241 to close an abandoned portion of State Road 1142 (also known as Elkin Wildlife Road) and to endorse the relocation of the portion of closed roadway in a manner consistent with plans submitted and approved to the State of North Carolina, Department of Transportation, Division of Highways. AND, WHEREAS, the abandonment and relocation is for a section of State Road 1142 between station 0 + 00 and station 39 + 00 as indicated on plat of survey on file in the Surry County Planning Department which is available during normal business hours for inspection. AND, WHEREAS, the costs of closure and construction are to be borne by Vulcan Materials Company; AND, WHEREAS, in order to properly close a public roadway, the Board must first adopt a resolution declaring its intent to close: the portion of abandoned roadway, call a public hearing on the question, provide notice of said public hearing by publication and by certified mail at which time all interested persons may address the Commissioners regarding the proposed closing. THEREFORE, 'be it resolved by the Board of Commissioners of Surry County, North Carolina: 1. That the Surry County Board of Commissioners intends to take action to close an abandoned portion of State Road 1142 between station 0 + 00 and station 39 + 00 which is to be relocated as is indicated on plat of survey on file in the Surry County Planning Department, which is available for inspection during normal business hours. 2. That- a nuhlic- hearinn shall hP schPd3n1Pt9 nn the question of closure and relocation at 6:15 P.M. on the day ' of i 19 q(p in the Commissioners' Room of the Surry Count Government Center, 118 Hamby Road, Dobson, North Carolina to hear from all interested persons who appear with respect to whether the closing would be detrimental to the public interest or to any individual property rights. 3. That statutory public notice of said hearing be published in the newspaper of general circulation in Surry County and also that copies of this Resolution be sent'by certified mail, return receipt requested to each owner as shown on the County tax maps of property adjoining State Road 1142 and who did not join in the request to have a portion of the road closed and relocated. ' 4. Further, that notice of the proposed closing and public hearing be prominently posted on at least two (2) places along State Road 1142. S. Thn_t said clncnrc cha_11 _hp n n_ntinnont +ha Nn_zth Carolina Department of Transportation,Division of Highways providing notice of those actions of abandonment by written notice ' to the County Manager. T THE DAY OF AUGUST, 1996. Vk U.- A4 ///J COUNTY OF SURRY BY:Y ihn Sp th e, Chairman AT Clerk to the Hoard NORTH CAROLINA, BURRY COUNTY. if L11yo g i3. NAN r r , Notary Public for said County and State, certify that LINDA WILKINS, Clerk to the SORRY COUNTY BOARD OF COMMISSIONERS, personally appeared before me and certified that the foregoing instrument was executed in the name of SURRY COUNTY by JOHN SPRINGTHORPE, III, Chairman of the SURRY COUNTY BOARD OF COMMISSIONERS, and that she, LINDA WILKINS, Clerk to the Board, did attest to said execution and did affix the SORRY COUNTY Seal to said instrument) and that the execution of said instrument on behalf of SORRY COUNTY was authorized by an appropriate resolution of the SURRY COUNTY BOARD OF COMMISSIONERS. Witness my hand and official seal, this the ZO day of AV / L, 191& �LY1G�cc_J,�J �J'1�.GL Notary Public My Commission Expires: 8 Zyg9 (SEAL) 11 1 Appendix E Approved Wetlands Permits U,S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action ID. 199102384 County Sum GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner/Agent Vulcan Materials Companv Address 4401 North Patterson Avenue Winston-Salem North Carolina 27105 Telephone No. 910 767- 4600 Size and Location of project (waterway, road name/number, town, etc.) Vulcan Materials Elkin Ouarrylocated off of V C ?68 adjacent to the Yadkin River. near Elkin in Stay -aunty. North Carolina. Description of Activity Discharee of fill associated writh proposed euarryOperations expansion resulting in 0.866 acres of impacts to the jurisdictional waters of unnamed tributaries of the Yadkin River This proposed impact is in addition 0.50 acres of impacts to jurisdictional waters authorized in 1991 Total authorized for the project is 1.366 acres _ C_Section 404 (Clean Water Act, 33 USC 1344) only. Section 10 (River and Harbor Act of 1899) only. _Section 404 and Section 10. NWP 26 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. T his Department of the Army Regional Geneml/i4ationwide Permit verification does not relieve the undersigned permittee of the responsibilin, ro ohta+_rt npy other required Federal, State, or local approvals/permits. The permitter: may need to contact appropriate State and local agencies before begiarung work. Regulatory Project Manager Signature Date March 15 1996 Expiration ate Sanuary 21, 1997 SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORM, ETC., MUST BE ATTACHED TO THE FILE COPY OF THIS FOP M, IF REQUIRED OR AVAILABLE. GEINTRAL CONI-DM0I iS avigation. No activity may cause more than a minimal adverse effect on navigation. t 2. Proper Maintenance. Any structure or fill authorized shall be properly maintained, including maintenance to ensure public etv. roslon and Siltation Controls. Appropriate erosion and siltation controls must be used and maintained in effective operating condition during construction, and all exposed soil and other fills must be permanently stabilized at the earliest practicable date. quatic Life Movements. No activity may substantially disrupt the movement of those species of aquatic life indigenous to %vaierboay. including those species which normally migrate through the area, unless the activity`s primary purpose is to impound water. quipment. Heavy equipment working in wetlands must be placed on mats or other measures must be taken to minimize soil turbance. Regional and Case -by -Case Conditions. The activity must comply with any regional conditions which may have been added ir the Division Engineer and any case specific conditions added by the Corps. ild and Scenic Rivers. No activity may occur in a component of the National Wild and Scenic River System: or in a river ially designated by Congress as a "study river" for possible inclusion in the system, while the river is in an official study Innis. Information on Wild and Scenic Rivers may be obtained from the National Park Service and the U.S. Forest Service. Aribal Rights. No activity or its operation may impair reserved tribal rights, including, but not limited to, reserved water .his and treaty fishing and hunting rights. 9■. Water Quality Certification. In certain states, an individual state water quality certification must be obtained or waived. ACoastal Lone Management. in certain states, an individual state coastal zone management consistency concurrence must be tained or waived. l i . Endangered Species. No activity is authorized under and NWP which is likely to jeopardize the continued existence of a Ieatened or endangered species or a species proposed for such designation, as identified under the Federal Endangered Species t, or which is likely to destroy or adversely modify the critical habitat of such species. Non -Federal permittees shall notify the District Engineer if any listed species or critical habitat might be affected or is in the vicinity of the project and shall not begin lrk on the activity until notified by the District Engineer that the requirements of the Endangered Species Act have been isfied and that the activity is authorized. Information on the location of threatened and endangered species can be obtained 1_..— .L- 7r V r:..L __J III[1 JV r_ 0_._.[__ _J Nr_1,_ _1 X,�_ .r _ r�_,__ _ 11U111 ulG U.a, rlau anU VYIIUIM; JCIVICU aI1L1 IVaL1011al 1V1arI11C FiSIICCICS JC[VIL:C. Historic Properties. No activity which may affect Historic Properties listed, or eligible for listing, in the National Register of storic Places is authorized, until the District Engineer has complied with the provisions of 33 CFR 325, Appendix C. The prospective permittee must notify the District Engineer if the authorized activity may affect any historic properties listed, �ter-mined to be eligible, or which the prospective permittee has reason to believe may be eligible for listing on the National gister of Historic Places, and shall not begin the activity until notified by the District Engineer that the requirements of the National Historic Preservation Act have been satisfied and that the activity is authorized, formation on the location and existence of historic resources can be obtained from the State Historic Preservation Office and M, \I";-,,�I V.-;�f_ of rr:­+. ,;,. nl,. , r,ee 2,2 f" rD 11n n r,.» �r .......... a��. rJ�a �ti.i — 11,,E Xi 1 1"i l.]b1. JJ L_l v, JJ V.Z Lbfi• 13. Water Supply Intakes. No discharge of dredged or fill material may occur in the proximity of a public water supply intake �cept where the discharge is repair of the public water supply intake structure or adjacent bank stabilization. . Sheiifish Production. No discharge of dredged or till material may occur in areas of concentrated shellfish production, unless the discharge is directly related to a shellfish harvest activity authorized by nationwide permit. Suitable Material. No discharge of dredged or fill material may consist of unsuitable material (e.g. trash, debris, car bodies, and material discharged must be free from toxic pollutants in toxic amounts. 16. ii'Iitigation. Discharges of dredged or fill material into waters of the United States must be minimized or avoided to the 'aximum extent practicable at the project site (i.e., on -site), unless the District Engineer has approved a compensation mitigation an for the specific regulated activity. 17. Spawning Areas. Discharges in spawning areas during spawning seasons must be avoided to the maximum extent �acticable. . Obstructions of High Flows_ To the maximum extent nracticahle- discharges must not nermanently restrict or impede the passage of normal or expected high flows or cause the relocation of the water (unless the primary purpose of the fill is to Fpound waters). Adverse Impacts from Impoundments. If the discharge creates an impoundment of water, adverse impacts on the aquatic system caused by the accelerated passage of water and/or the restriction of its flow shall be minimized to the maximum extent �acticable. . Waterfowl Breeding Areas. Discharges into breeding areas for migratory waterfowl must be avoided to the maximum extent practicable. ..I. Removal of Temporary Fills. Any temporary fills must be removed in their entirety_ and the affected areas returned to their le -existing elevation. L State of North Carolina Department of Environment, Health anH NIPtrtral PPgrlllirrPc Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director April23, 1996. Sorry County DEM Project rt 960065 APPROVAL of 401 Water Quality Certification and ADDITIONAL CONIATIONS Mr. I'Aiko Poplin Vulcan Materials Co. 4401 N. Patterson Ave. Winston-Saiern, NC 27105 Dear Mr. Poplin: You have our approval to place rill material in 1.366 acres or wetlands or waters for the purpose or ' expanding an existing quarry at Elkin Quarry, as you described in your application dated 21 February 1996. After reviewing your application, we have decided that this rill is covered by General Water Quality Certification Number 2671. This certification allows you to use Nationwide Permit Number 26 when it is issued ' by the Corps of Engineers. This approval is only valid for the purpose and design that you described in your application, Ir you change your project, you must notify us and you ntay be required to scud us a new application. For this approval to be valid, you must follow the conditions listed in the attached certification. A 50 foot wide wooded shall be planted and maintained along the Yadkin River and streams adjacent to the property boundaries in till Yadkin River Rood plain. if the owner of the adjacent pond is willing, Vulcan shall prepare a bottom contour map of the pond (existing condition) and then dredge the pond to the approximate existing contour within one year after the berm is established, stabilized and the SR road is relocated. In addition, you should get any other federal, state or local permits before you go ahead with your project. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition which conforms to Chapter 150E of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review of the Division of Erivirontncntal Management under Section 40i of the Clean Water Act. If you have any questions, please telephone John Dorncy at 919-733-17E6. 1 Attachrncnt cc: Wilmington District Corps of Engineers Corps of Engineers Raleigh Field Office Winston-Salem DEM Regional Officc Mr. John Domey Central Files Tracey Davis; Land Quality Bob Smiley; Marshall Miller and Associates $ l rtrr-rnl v I PC (On tort Howdii9 Jr. P.E. l f� 960065.ltr Environmental Sciences Branch, 4401 Reedy Crack Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper State of North Carolina Department ofEnvironment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor s a Jonathan B. Howes, Secretary p E H N A. Preston Howard, Jr., P.E., Director June 19, 1996 Mr. Mike Poplin Vulcan Materials Company 4401 N. Patterson Ave. Winston-Salem, NC 27105 Dear Mr. Poplin: Re: Modificadon of Water Quality Certification Vulcan Elkin Quarry Sunry County DEM n960065 The 401 Water Quality Certification issued on 23 April 1996 contained an additional condition regarding potential sedimentation into the adjacent pond. This condition is hereby removed and replaced with the following: a. Temporary erosion and sedimentation control measures contributing to the above referenced pond will be designed to adequately pass the 100-year design storm in lieu of the 25-year storm design standard: and, b. If requested in writing by the landowner within two years of the date of this -Certification, Vulcan shall investigate and if required by DEM shall remove any sedimentation in the pond which is directly attributable to runoff from Vulcan's property. All other conditions of that Certification are still applicable. Please call Mr. John Dorney of my staff at 919-733-1786 if you have any questions. Sincerely, - estop Howard, Jc, .E. cc: Wilmine on District Corps of Engineers Corps of Engineers Raleigh Field Office Winston-Salem DEM Regional Office Mr. John Domey Central Files Tracey Davis; Land Quality Bob Smiley; Marshall Miller and Associates Division of Environmental Management - Environmental Sciences Branch 4401 Reedy Creek Rd., Raleigh, NC 27626-0535 • Telephone 919-733-1786 • FAX 919-733.9959 An Equal Opponunlly Affirmative Action Employer 5V* recycled/ 10%postconsumer paper IyI.GCP�/ ■ ,I State of North Carolina Department of Environment, Health and Natural Resources Division of Land Resources James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary Charles Gardner, P.G., P.E. Director and State Geologist A74 ®E H N R Suly 21, 1995 Mr. Tim Hendricks Vulcan Materials Company Mideast Division P. O. Box 4239 Winston-Salem, North Carolina 27115-4239 RE: April 26, 1995 Mining Permit Modification Elkin Quarry Mining Permit No. 86-03 Surry County Dear Mr. Hendricks: This letter is in response to your consultant's, Mr. Stuart Brashear of Dyno Nobel Inc., July 7, 1995 letter to Mr. Tracy Davis of this office. The letter requested that your company be relieved of the modifications to its blasting procedures outlined in my April 26, 1995 letter to you. In light of the circumstances noted in Mr. Brashear's letter, I hereby rescind my April 26, 1995 modification to Mining Permit No. 86-03. Therefore, your company will be required to continue to comply with the blasting conditions currently listed in Mining Permit 86-03. I appreciate your company's prompt invest igar ian and reporting --- ----of this —matter to the Department. (Your company �s initiative, -- -- responsiveness and cooperation in resolving this matter should be commended. Your continuedcooperationregarding blasting related issues at your company's operations is greatly appreciated. If you should have any questions on the above, please contact Mr. Tracy Davis, State Mining Specialist, at (919), 733-4574. CHG/TED/td CC: Mr. Tracy Davis, P.E. Mr. Doug Miller, P.E. Geological Survey Section (919)733-2423 FAX: (919) 733-0900 Sincerely, Charles H. Gardner, P.G., P.E. (w/copy of 7/7/95 letter) Land Quality Section Geodetic Survey Section (919)733-4574 (919)733-3636 FAX, 733-2876 FAX: 733-4407 P.O. Box 27687. Raleigh, North Carolina 27611-7687 Telephone 919-733-3833 FAX 919-733-4407 An Equal Opportunity Affirmative Action Employer 50%recycled/ 10%post-conwmer paper P State of North Carolina Department of Environment,. Health and Natural Resources Division of Land Resources James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary Charles Gardner, P.G., P.E, Director and State Geologist Mr. Tim Hendricks Vulcan Materials Company Mideast Division P. 0. Box 4239 Y1.9;TA ed� �EHNR April 26, 1995 Winston-Salem, North Carolina 27115-4239 RE :,High'Air•Blast•Value Recorded From the Production Blast on April 19, 1995 Elkin Quarry Mining Permit No. 86"03 Surry County - Dear Mr. Hendricks: T"k4 r I ram#-4--- i n ti res rein---J\.111g-+- -� , — , — non qi 1 4-n"+- I n Mr C!i- t 1111 .7 1G41-G1 1� 111 1G�l �— 4V Yw"l \. V11J U11... C.Li 14... JJ 1-.l J I...UU16. Brashear of Dyno Nobel Inc.., investigation report to Mr. Tracy Davis of this office dated April 20, 1995. The investigation report contained information regarding the high air blast recording associated with the first blast conducted at the quarry on April 19, 1995. An air overpressure measurement of 131 dbl was observed on the monitor/screen of your company's seismograph .for this blast. This office has completed its review of the investigation report prepared by Mr. Brashear. It appears that the monitor/screen on the seismograph is defective as the tape evaluated by Geosonics, Inc. revealed an air overpressure measurement of 125.5 dbl. The second blast conducted on April 19, 1995, using both the tape unit and a more modern electronic unit, yielded measurements of 117 dbl and 112 dbl, respectively. This supports the fact that the monitor on the tape unit is likely defective and may have resulted in a higher than actual airblast reading. In any event, this office concurs with the remediation measures outlined in Mr. Brashear's report. The measures are as follows: 1) A properly calibrated seismograph, preferably a digital model, shall be utilized for all future blasts. Geological Survey Section Land Quality Section Geodetic Survey Section (919)733-2423 (919)733-4574 (919)733-3836 FAX: (919) 733-0900 FAX: 733-2876 FAX: 733-4407 P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-3833 FAX 919-733-4407 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Mr. Hendricks Page 2 2) - Initiation of all future shots at this site shall commence on the open corner in a more traditional pattern,: reducing the potential for unburdening the rear holes of the open corner. 3) All corner holes shall be decked to help provide the desired movement of the muckpile perpendicular to the primary free face, minimizing the amount of material .that must be recovered from the bottom of the pit. at this facility, the above remedial measures proposed by your company -will. -be -.considered. a part of the, blasting procedures outlined in Mining Permit No. 86-03. Please attach acopy of this letter to Your mining permit for this site for future reference. . If you do not agree that the report constitutes a request by your company to modify your company's mining permit, you have the right to request a hearing pursuant to G.S. 74-57 to discuss this matter further. I appreciate your company's prompt investigation and reporting of this matter to the Department. Your company's initiative and responsiveness in this matter should be commended and used as an example by the industry as a whole. Your continued cooperation regarding blasting related issues at your company's operations is greatly appreciated. if you should have any questions on the above, please contact Mr. Tracy Davis, State Mining Specialist, at (919) 733-4574. Sincerely, Charles H. Gardner, P.G., P.H. CHG/TED/td cc: Mr. Tracy Davis, P.E. Mr. Doug Miller, P.H. (w/Copy Of report) STATIE i r •'A�tzL���M Ufa+' �_ State of North Carolina Department of Environment, Health, and Natural Resources 512 North Salisbury Street • Raleigh, North Carolina 27604 March 26, 1993 James B. Hunt, Jr., Governor Mr. Jim Stroud Vulcan Materials Mideast Division P.O. Box 4239 Winston-Salem, Company N.C. 27115-4239 AL' • rctlu��. 11v. c» V4 Elkin Quarry Surry County Dear Mr. Stroud: Jonathan R Howes, Secretary Your recent request to have Mining Permit No. 86-03 for Elkin Quarry in Surry County modified has been approved. The modification includes the "land farming" of contaminated soils and ant erosion coi16i U1 measures as Shown on the mine maps dated February 10, 1993. 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 Condition 12C of your 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 230.07 acres and the amount of land you are allowed to disturb at any one time is 70 acres. P.O. Sox 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-4984 Fax ,# 919-733-0513 An Equal Opportunity Affirmative Action Employer (A sox regded/10x poa•me =" p.pe Mr. Stroud March 26, 1993 Page 2 Please review the modified permit and advise this office at (919) 733-4574 should you have any question concerning this matter. Since ely, T acy E Davis, E.I.T. Mining Specialist Land Quality Section TED/ tls Enclosure cc: Mr. Doug Miller DEPARTMENT O F ENV= RONMENT HEALTH AND NATURAL RE S OURC E S D = V= S = ON OF LAND RESOURCE S LAND QTJAL=TY SECT=ON P E R M 2 T for the operation of a mining activity In accordance with the provisions of G.S. 74-46 through 68. "The Minina Act of 1971." Minina Permit Rule 15A 1 NCAC 5 B, and other applicable laws, rules and regulations Permission is hereby granted to: Vulcan Materials Company Elkin Quarry Surry County - Permit No. 86-03 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: -November 12, 2001 Page 2 of 12 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. Modifications November 12. 1991: This hermit has been modified to add additional land contiguous to the existing permit area, stockpile/overburden disposal areas,. and the eastern pit expansion/road relocation as specified by the revised Mine Map, Details and Notes, and Emergency Spillway and Cross-section sheets dated ,Tune 26, 1990 and revised September 12, 1991 with stipulations. Page 3 of 12 December 14, 1992: This permit has been modified to construct a new overburden disposal area including the associated sediment and erosion control measures as indicated on the Elkin Mine Map dated October 12, 1992 and detail sheet and supporting calculations dated October 12, 1992 and October 8, 1992, respectively. March 26, 1993: This permit has been modified to include the "Land Farming" of contaminated soils as per the Plan and Maps dated February 10, 1993. Expiration Date This permit shall be effective from the date of its issuance until November 12, 2001. 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 Dewaterina 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. 1JlIv lr Vi LLLfe l It ai llallag eJlleiJt CIJJlUl11 .rS .�7llJli. �t s all ILJe 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. Page 4 of 12 3. Buffer Zones A. Any mining activity affecting wetlands shall be in accordance with the requirements and regulations promulgated by the U.S. Army Corps of Engineers. B. Sufficient buffer shall be maintained between any affected land and any adjoining waterway to prevent sed.'imentation of that waterway f1LJll1 cros:Lon of tiie affected land and to preserve the integrity of the natural watercourse. C. The buffer zones shown on the revised Mine Map received by the Land Quality Section on September 24, 1991 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 lallu CL1sl.tlilldfll.0 and liialiitaiiieci t.[7 prevent sediment from discharging onto adjacent surface areas or into any lake or natural watercourse in proximity to the affected land. C. The revised Mine Map, Details and Notes, and Emergency Spillway and Cross -sections sheets dated June 26, 1990 and revised September 12, 1991 shall be followed with the following stipulations: (1) all rip -rap channels shall be undercut to allow for proper placement of all filter stone and rip - rap so as not to reduce the design capacities of said channels.• (2) all areas at the -site to be disturbed shall be limited to those defined on the revised Mine Map received by the Land Quality Section on September 24, 1991. All other areas shall be considered natural buffer zone areas and shall not be disturbed until such time that a modification request to disturb said areas has been submitted to and approved by the Department; (3) all sediment basins shall be cleaned out when they become one-half (1/2) full of sediment and after each significant rainfall event; and Page 5 of 12 (4) Class I and Class B rip -rap channels shall have minimum stone liner thicknesses of 22 inches or 2 times the d50 stone,size, whichever is greater. D. The Mine Map and Details and Specifications, both dated October 12, 1992, shall be followed with regard to the proposed overburden disposal area modification. In addition, the following stipulations apply: (1) slope drains shall be utilized along the northeast side of the first.two terraces during construction and until they have been permanently stabilized, to properly convey run-off down slope. As an alternative, said run-off can be diverted away from the fill slope and towards diversions installed in natural ground at the abutments of said terraces; (2) the elevation of the first terrace shall be 1000 feet rather than 1020 feet; (3) all fill slopes shall be surface roughened, stabilized, seeded, mulched, and tacked on a weekly basis; (4) the existing sediment pond northeast of the proposed overburden disposal area shall be cleaned out a minimum of every 6 months. E. 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. F. The sediment and erosion control measures must be installed and maintained as per the plan dated February 10, 1993 for the "Land Farming" area. 5. Groundwater Protection A. The observation wells denoted as OW1 through OW3 as indicated on Figure 1 (attached) shall be installed and monitored as specified below. Page 6 of 12 B. The observation wells shall be drilled wells cased into consolidated rock and grouted to the surface. The wells (boreholes) shall be extended at least 50 feet below static water level; or at least 50 feet into unweathered rock, whichever is deeper. The wells shall, be secured against unauthorized entry with a lockable cap. The necessary permits to construct these wells shall be obtained from the N.C. Division of Environmental Management, Groundwater Section. C. The observation wells shall be monitored twice a month (bimonthly) at the same day and approximate time of day for twelve (12) consecutive months following the installation of the wells. The static water levels shall be measured with an accuracy of plus or minus 0.1 foot and shall be referenced to a datum point and a record of the water levels maintained. The bimonthly precipitation and the volume of pit water discharge shall also be recorded. Copies of these records shall be provided to the Department on or about the end of each month. Static water level monitoring frequency may be increased or decreased following the initial twelve (12) month period 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. B. Overburden cut slopes along the perimeter of any expansions of the initial 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. Page 7 of 12 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: 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. Page 8 of 12 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 Barrier A physical barrier consisting of large boulders placed end - to -end or barbed wire fencing as indicated on the revised Emergency Spillway and Cross -Sections sheet dated June 26, 1990 and revised September 12, 1991 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. vegetated earthen berms and appropriate tree plantings shall be installed and maintained as shown on the revised Mine Map, Details and Notes, and Emergency Spillway and Cross -Sections sheets dated June 26, 1990 and revised September 12, 1991. 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 nhangPS Mimi- hp nhtairad frnm the Department n&Ljrinr to on -site implementation of the revisions. Page 9 of 12 12. Refuse Disposal A. No on -site disposal of refuse or other solid waste that are 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 maybe considered hazardous shall be disposed of within the permitted area. C. No land farming of contaminated soil shall occur at the site until proper permits and approvals have been obtained from the Division of Environmental Management and 2 copies of said permits/approvals have been submitted to the Land Quality Central Office. 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 10 of 12 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. i. ProviSiviis fUx 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 11 of 12 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, B and C. 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 approved in the renewal application by Mr. Richard Everhart, District Conservationist, Soil Conservation Service, on December 19, 1990 with the following additions as per the N.C. Wildlife Resources Commission: early spring: Switchgrass 8 lbs./acre VA 70 shrub lespedeza 20 lbs./acre Fall: Orchard grass 18 lbs./acre white clover 5 lbs./acre Page 12 of 12 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 This permit, issued September 27, 1972, renewed September 270 1982, contemporaneously renewed and modified November 12, 1991, and modified December 14, 1992, is hereby modified this 26th day of March, 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 North Carolina Department of Environmental Quality Pat McCrory Governor CERTIFIED MAIL RETURN RECEIPT REQUESTED 7008 1300 0000 7128 1303 Mr. Tony Johnson Vulcan Construction Materials LLC, Inc. 11020 David Taylor Drive, Suite #105 Charlotte, North Carolina 28262 October 7, 2015 Donald R. van derVaarl Secretary RE: Mining Permit Nos. 11-03, 12-02,12-07, 13-04, 13-27, 14-01, 30-03, 34-01, 34-02, 34-04, 34-05, 36-24, 41-08, 45-01, 60-05, 60-11, 61-13, 77-01, 79-09, 85-03, 85-04, 86-03, 88-01, 91-01, 95- 01, 97-02, 99-01, 99-06, 00-24 Buncombe, Burke, Cabarrus, Caldwell, Davie, Forsyth, Gaston, Guilford, Henderson, Mecklenburg, Mitchell, Richmond, Rockingham, Stokes, Transylvania, Vance, Watauga, Wilkes, Yadkin, Yancey Counties Dear Mr. Johnson: Your request to have the corporate name changed on the above referenced mining permits from Vulcan Construction Materials, LP to Vulcan Construction Materials, LLC is hereby approved. As we have received the required surety in an amount sufficient to coverthese operations, I am enclosing new cover sheets for each updated mining permit. The permit number, expiration date and mine name shall remain the same as before this corporate name change. Please attach this approval letter to your existing mining permits) for future reference. Please review the cover sheets carefully and notify this office of any objections, questions or corrections that may need to be addressed. I have also enclosed the old reclamation bonds for your disposal. Ty1ar�k you fur your cooperation in this matter. if you should have any questions, please contact Judy Warner, Assistant State Mining Specialist, at (919) 707-9220. SSiincc�erNIN1e�ly✓,, dmet 5. Boyer, P State Mining Specialist Land Quality Section JSB7jw J Enclosures cc: Ms. Shawna Riddle Mr. Zahid Khan Mr. Matt Gantt. PE Mr. John Holley, PE Mr. William Gerringer-DO eo p ANNtuoy) R@jWg@irres Energy Section • Geological Survey Section • Land Duality Section 512 North Salisbury Street, Raleigh, North Carolina 27604 - Internet . him iroortal.ncdenrorgMebllrl Mailing Address. 1612 Mal Service Center, Raleigh, North Carolina 27699-1612 •919-707-92001 FAR 919-715-8801 An Equal Opportunity 1 Affirmative Acton Employer- 50% Recycled 110% Post Consumer Paper DEPARTMENT OF ENVIRONMENTAL QUALITY DIV IJIVIY VF EIKYERV Y, 11 1111XCM 1 AIYD LAIVID 0E0 V VRriEJ 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 15A NCAC 5 B, and other applicable laws, rules and regulations Permission is hereby granted to: Vulcan Construction Materials, LLC Elkin Quarry Surry County - Permit No. 86-03 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: December 14 2021 MINING CHECKLIST FOR ROUTING �pei lj� lj jjktial Applicant's Name:,��llYlF,f ProjeaName: L� nnSi r.y+p9+L Appfic�Pesnit No: Coney: �'p4f s1 S Date Received: Reviewer: i L/ River Basin Namr. ok)&� ❑ New ❑ Mannal Modificatio(imide permit boundaries) aaiit� ❑ Modification(outside permit boundaries) ❑ Transfer ❑Releass I„��U DJ v ❑ Partial Release ❑ Additional Information ❑ Fee Needed $ ❑Fee Receirre CIO Pleaseroteentire plicationpacbage hUa- Regional Ofjiee(a complete ropiest atach tk"LQS Regional Opfin Mining AppliatimPoumv (7milirt"m enempyalmend 6mA tk DWQmdDWR "Minng Appkatian Reokm Fmm" m tka6n ropy, and 6nihmpirs m tk Regiaml Enginrer) Date: Routed �� l SMod � 2+ � ❑ DivisionofWater Resources Date: Routed Reed ,, /� ❑ NC Wildlife Resources Commissio Date: Routed Reed Date: ❑ US Fish d Wildlife Service Date: Routed Reed (Onlymaapp(pmn'muand modhrmion requests thmaddlmnd to tkpermie) Please route first 3 pages of the application and any location maps to ❑ Division of Pants dr Reaeation Date: Routed M d ❑ NC GeologicalSurvey Section Date: Routed Mod ❑ Division of Marine Fisheries Date; Routed Recoil ❑ Division of Sort m Water Conservation (plus LEA) Date: Routed Ree'd (Ody onto applimnom andmodificatlom requests that add Imd to thepe.mit) ❑ Divisiov of Archives v ....Lry Doe: Ruuted Mod (Only new applicants) _ ❑ Other: Date: Routed Reed ** Suspense Date for Comments:) (no lour than g days from receipt) 0 Please vote the following: Wells Fargo Bank �1 1 80003519 96 191 Peachvee St., NE << y `ctr'I ATLANTA,GA30W3-1757 Martarials Rfll3:JLJ L'9 Company Payment Services P O Box 360607 Data Blrmingham,AL3623B-0607 0711MO15 800462.4613 Amount PAY One Thousand Two Hundred Dollars And. Zero Cents'"..... ""'•"•••••••'•••••""'• 1,200.00'^^»^»"^»"^ VOID AFTER 90 DAYS TO THE STATE OF NORTH CAROLINA ORDER OF NCOENR DIVISION OF WATER OUAILTY 1617 MAIL SERVICE CENTER' J RALEIGH,NC 27699-1617� . Authorized Signature Wells Fargo Bank - - 1800035797'- 181 Peachtree St., ME M1 - ATlAN7A,GA 3 0757 Matariels mpany .. Payment Services PO Box 390607 Date Bimmngthami W238-0607 - 67/182015 NO 4624B13 Amount - PAY J One Thousand Two Hundred Dollars And Zero Cents""'"""' VOID AFTER We DAYS TO THE STATE OF NORTH. CAROLINA ODDER OF - NCDENR DIVISION OF WATER OUAILTY 1617 MAIL SERVICE CENTER n �` r RALEIGH,NC 27699-1617 - Authorized Signature Wells Fargo Bank _ 1800035798 4 V a 1� 191 Peachtree St, NE � ATIAMA,GA 30303-1757 1111alerials mpany Payment Services P OBox 3130607 - - - Date Birmingham, AL 35236-0507 - 0711820.15 800-4623 13 - Amount PAY Five Hundred Dollars And Zero Cents""""•" - VOID AFTER 90 DAYS TO THE STATE OF NORTH CAROLINA ORDER OF NCOENR DIVISION OF WATER OUAILTY - 1017 MAIL SERVICE CENTER RALEIGH,NC 27699-1617 Authorized Signature UU110H Materials Cbmariv August 18, 2015 Ms. Janet Boyer, P.E. � N. C. Department or Environment and Natural Resources Division of Energy, Mineral & Land Resources Land Quality Section 1612 Mail Service Center Raleigh, North Carolina 27699-1612 Re: Vulcan Construction Materials Mining Permits Dear Ms. Boyer: RECEIVED AUG 21 20is LAND QUALITY MINING PROGRAM Via FedEx On June 30, 2015, Vulcan Construction Materials, LP (the "Company") undertook a statutory conversion to become a limited liability company. Following the conversion, the Company will continue its legal existence under the name Vulcan Construction Materials, LLC. We do not anticipate that the conversion will have any impact on the operations, assets or liabilities of the Company. A copy of the relevant conversion statute is attached to this letter. Attached you should find: 1. Applicable pages of the mine permit applications for each facility detailing this owner name change. 2. Reclamation bond / rider with the revised new corporate name. 3. Three checks totaling $2900.00 for the $100.00 processing fee for each permit corporate name change. Unless required by your department, Vulcan does not need updated permits for the above sites. This being the case, Vulcan would like to request a letter acknowledging the name change and that the permits will remain active and in full force under the new name. If you have any questions or require additional information, please contact me at (704) 547-7076 or (571) 422-6401 (mobile). Sincerely, Tony ohnson Environmental Engineer cc: Toby Vinson CHARLOTTE REGIONAL OFFICE • VULCAN CONSTRUCTION MATERIALS, LP 11020 DAVIDTAYLOR DRIVE #105 • CHARLOTTE, NC 28262 • TELEPHONE 704 549-1540 • FAX 704 549-4137 List of Vulcan Permitted Mine Facilities in North Carolina Permit # Name of Facility County Region Name 11-03 Enka Quarry Buncombe Asheville Regional Office 12-02 Morganton Quarry Burke Asheville Regional Office 12-07 Burke Quarry Burke Asheville Regional Office 14-01 Lenoir Quarry Caldwell Asheville Regional Office 45-01 Hendersonville Quarry Henderson Asheville Regional Office 61-13 Spruce Pine Quarry Mitchell Asheville Regional Office 88-01 Penrose Quarry Transylvania Asheville Regional Office 00-24 Toe River Quarry Yancey Asheville Regional Office 77-01 Rockingham Quarry Richmond Fayetteville Regional Office 13-27 Cabarrus Quarry Cabarrus Mooresville Regional Office 13-04 Gold Hill Quarry Cabarrus Mooresville Regional Office 36-24 High Shoals Quarry Gaston Mooresville Regional Office 60-11 Clear Creek Quarry Mecklenburg Mooresville Regional Office 60-05 Pineville Quarry Mecklenburg Mooresville Regional Office 91-01 Greystone Quarry Vance Raleigh Regional Office 30-03 Smith Grove Quarry Davie Winston-Salem Regional Office 34-05 East Forsyth Quarry Forsyth Winston-Salem Regional Office 34-01 421 Quarry Forsyth Winston-Salem Regional Office 34-02 North Quarry Forsyth Winston-Salem Regional Office 34-04 South Fork Quarry Forsyth Winston-Salem Regional Office 41-08 Stokesdale Quarry Guilford Winston-Salem Regional Office 79-09 Stoneville Quarry Rockingham Winston-Salem Regional Office 85-04 Sandy Ridge Quarry Stokes Winston-Salem Regional Office 85-03 Pilot Mountain Quarry Stokes Winston-Salem Regional Office 86-03 Elkin Quarry Surry Winston-Salem Regional Office 95-01 Boone Quarry Watauga Winston-Salem Regional Office 97-02 115 Quarry Wilkes Winston-Salem Regional Office 99-06 Yadkin Quarry Yadkin Winston-Salem Regional Office 99-01 Cycle Quarry Yadkin Winston-Salem Regional Office E. APPLICATION FOR A MINING PERMIT NORTH CAROLINA DEPARTMENT OF ENVIRONMENI AND NATURAL RESOURCES LAND QUALITY SECTION APPLICATION FOR A MINING PERMIT (PLEASE PRINT OR TYPE) Name of Mine Elkin Ouarry County Surr River Basin Yadkin Latitude (decimal degrees to four places) 36.2556 Longitude (decimal degrees to four places)-80.8113 RECE1XiFn 2. Name of Applicant* Vulcan Construction Materials, LLC 3. Permanent address for receipt of official mail** PO Box 4239 AUG 21 2015 LAND QUALITY MINING PROGRAM Winston Salem, NC 27115-4239 Telephone (336) 767-4600 _ _ Alternate No. Minp. f)ffioo Arlrlrt-¢c 17.167 NC Mahwnv 76R Elkin, NC 28621 Telephone 336-835-1439 5. Mine Manager Bert Bond 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 facts will be cause for permit revocation. P I. 1 ***Signature &Q `2 Date Print Name Martin Thorpe Title 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 (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 Fling 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. 2 APPLIt~.ATiON 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 the Mining Act of 1971 pursuant to G.S. 74-56. 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. LANDOWNER: Signature: Print Name: (Title, if applicable) Company: (If applicable) Address: Telephone: Date Signed: APPLICANT: Signature:'-- U"JtJ ► "4A-- Print Name: Martin Thorpe Title: Vice -President Company: Vulcan Construction Materials, LLC Mine Name: Elkin Quarry Telephone: (336) 767-4600 Date Signed: 7/ 6 /1S `Signature must be the same as the individual who signed Page 1 of this application. One oriQiinal and five (5) copies of the completed application, six (6) conies of all location mans, mine maps and reclamation maps, and the appropriate processing fee (see next page for fee schedule) in the form a check or money order payable to the North Carolina Department of Environment and Natural Resources must be sent to the Land ()uality Section Central Office at the address listed on the front cover of this application form. Inquiries regarding the status of the review of this application should be directed to the Mining Program staff at (919) 733- 4574. 15