Loading...
HomeMy WebLinkAboutSW8030107_COMPLIANCE_20101003PERMIT NO. STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS sw /off DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE �- YYYYMM D D Ai1' North Carolina Department of Environment and Natural Resources �..�,. NCDENR ONE -STOP MEETING REQUEST FILL-IN all the information below. FAX or Email the completed form to the Coordinator. • Asheville Region - Alison Davidson 828-296-4698; alison.davidson0mcdenr.gov • Fayetteville/Raleigh Region - David Lee 919-791-4203; david.lee(Oncdenr.gov • Mooresville/Winston Salem - Patrick Grogan 704-663-3772, Patrick.- rogan(&ncdenr.gov • Washington Region Lyn Hardison 252-946 9215; lYn.hardison(rDncdenr.gov • Wilmington Region - Cameron Weaver 910-350-2004, cameron.weave►Ancmail.net Project Name: South Branch Bradley Creek 1 Michelle Drive Drainage Improvement Project SAW-2009-01827 County: NEW HANOVER Applicant: CITY OF WILMINGTON STORM WATER SERVICES Address:209 Coleman Dr. 2301 Wilmington, NC 28412 Phone: 910-341-5880 Fax: Email: webmaster@wilmingtonnc,gov Physical Location of Project: Along drainage channels to South Branch Bradley Creek from Hinton Rd to South Branch Bradley Creek near Andover Road in Wilmington, NC and from Forest Drive to Surry Downs Rd along South Branch Bradley Creek in Wilmington, NC. Consultant: ENTRIX Address: 3141 John Humphries Wynd Suite 265 Raleigh, NC: 27612: Phone: 919-239-8900 Fax: 919-239-8913 Email Amoore entrix.com Engineer: Dewberry & Davis, Inc. 2301 Rexwood Drive, Suite 200 Raleigh, NC 27607 Phone: 919-881-9939 Fax: 919-881-9923 Email: Mhanson@dewberry.com Agencies Involved: Check all agencies that may be involved with project: ® Marine Fisheries ® National Marine Fisheries ® U.S. Fish & Wildlife ® Wildlife Resources ® Coastal Management ® Land Resources ® U.S. Army Corps of Engineers ® Shellfish Sanitation ❑ Aquifer Protection ® Water Quality:.(x Stormwater, x 4011buffer, X NPDES) ❑ Public Water Supply ❑ Air Quality ❑ Solid Waste ❑ UST ❑ Other ❑ Other ❑ Other Narrative: The City of Wilmington, NC is proposing to implement watershed improvements to reduce structural flooding and improve emergency access. The South Branch Bradley Creek/Michelle Drive Drainage Improvement Project will include providing drainage relief to properties along a portion of the South Branch of Bradley Creek and in the areas surrounding Michelle Drive and connect the disjointed segments of public drainage easements to allow for permanent maintenance access. These aims are consistent with the City Stormwater Department's Mission Statement to "maintain and improve the public drainage system for protection of our community and the environment." A detailed listing of proposed project components follows: NCDENR One Stop Meeting April 2009 F 1. The Vegetated Management Area (VMA) along SB Bradley Creek was qualitatively evaluated for species composition, canopy coverage, invasive species density, and relative width. These areas represent existing natural stream buffers remaining within the predominantly residential neighborhood. The City will be maintaining these areas where feasible. 2. Culvert sizes on the South Branch of Bradley Creek will be upgraded at Surry Down Court, Forest Cove Private Road, Andover Road, Summerlin property private drive, Bateman property yard culverts and Forest Avenue to meet 10-year future Level of Service. 3. Channel cross sections on the South Branch of Bradley Creek will be expanded from the confluence with the tributary upstream of Andover Road to the Forest Cove Private Road culvert to meet 10-year future Level of Service. The proposed cross section will include a meandering pilot channel for base flow and floodplain benches that will be re -vegetated with a wetland seed mix. The channel grade will also be lowered by up to two feet through this segment to match the proposed culvert inverts. 4. The remaining channel segments on the South Branch of Bradley Creek will be improved by non -mechanical clearing and snagging to remove debris and invasive species. 5. The tributary to South Branch of Bradley Creek will be upgraded with parallel culverts to the existing Shell Road Village culvert and installation of a single trunk drainage system along Michelle Drive and Anne Drive to replace the roadside ditch and driveway culvert system. G. Channel cross sections on the intermittent tributary will be expanded from the Shell Road Village outfall to the confluence with the South Branch of Bradley Creek to meet 10-year future Level of Service. The channel grade will also be lowered by up to two feet through this segment to match the proposed downstream channel and improve conveyance capacity. 7. Channel cross sections on the intermittent tributary will be expanded from Michelle Drive to Wrightsville Ave. to meet 10-year future Level of Service. The channel grade will also be lowered by up to one foot through this segment to match the proposed upstream culvert invert. 8. The drainage pattern through the Black Property will be modified to meet 10-year future Level of Service and improve conveyance capacity. The existing `fire break' overflow conveyance from Hinton Townhomes sediment basin will be re -directed to a trapezoidal channel following the property boundary. This location is based on negotiated easement from the property owner that will allow permanent maintenance by City staff. No development or added impervious area is proposed in this project. The project will be funded through the use of City Stormwater Utility fees. Wetlands and jurisdictional waters were delineated and surveyed along the entire project corridor, and an approved jurisdictional determination was conducted by the Army Corps of Engineers on January 4, 2010. NCDENR One Stop Meeting April 2009 ,t South Branch Bradley Creek Jurisdictional Waters: The South Branch of Bradley Creek is a first order perennial non -tidally influenced stream with a drainage area of approximately 0.66 mil. The creek flows into a tidally influenced branch of Bradley Creek below a weir dam at Surrey Downs Road. Riparian wetlands along the South Branch of Bradley Creek can best be described as human impacted headwater swamp wetlands. These riparian wetlands are dominated by hardwood communities, and hydrology is received in most cases from overbank flow. The ecology of South Branch Bradley Creek has been impacted over time by historic channelization, lawn and other structural maintenance by adjacent landowners, and the proliferation of invasive plant species in the buffer zone. The riparian zones in the project corridor along South Branch Bradley Creek include sections of forested buffers interspersed with managed lawns. The forested buffers include typical canopy and understory species for the North Carolina Coastal ['lain. Invasive shrubs are prevalent in most of the buffer zones. These are dominated by privet with lesser amounts of honeysuckle. Lawns are often mowed to the top of the channel banks and are covered with a variety of turf grasses. Proposed culvert upgrades along the South Branch of Bradley Creek are expected to permanently impact approximately 0.28 acres of jurisdictional waters including 311 linear feet of Relatively Permanent Waters (RPW) of South Branch Bradley Creek as well as adjacent riparian wetlands. These permanent impacts will include rip rap pad outlet and inlet protection, headwall construction, and in some cases, culvert extensions at culvert upgrades. Proposed channel improvements are expected to temporarily impact approximately 1,139 linear feet of stream including approximately 0.4 acres of jurisdictional waters that include the channel and adjacent riparian wetlands. Natural vegetative condition will be restored in proposed channel improvements and natural channel design elements will be implemented in the proposed pilot channel. Jurisdictional Waters along Intermittent Tributary from Shell Road Village Outfall to Confluence with South Branch Bradley Creek: This channel system flows from a small detention pond in Shell Road Village just North of Wrightsville Avenue as well as an extensive stormwater drainage network south of Wrightsville Avenue. This tributary flows in an L-shape pattern from the detention pond at Shell Road Village to the confluence with South Branch Bradley Creek. This tributary system was determined to be a RPW during site visits by US Army Corps of Engineers personnel. ENTR[X personnel determined the tributary to be intermittent using the North Carolina Division of Water Quality intermittent and Perennial Stream Identification Form. The tributary has a thin buffer consisting of mostly invasive plant species. Land surrounding the ditch is managed up to the top of bank for turf grasses. No riparian wetlands were delineated along the tributary from Shell Road Village to the confluence with the South Branch of Bradley Creek. Proposed culvert upgrades along this tributary are expected to permanently impact approximately 0.02 acres of jurisdictional waters including 40 linear feet of jurisdictional RPW. Proposed channel improvements are expected NCDENR One Stop Meeting April 2009 1 to temporarily impact approximately 747 linear feet of jurisdictional RPW or 0.11 acres of jurisdictional waters including the channel and adjacent riparian wetlands. 'Che proposed channel improvements will be restored to existing natural vegetative conditions. Jurisdictional Waters along Existing Channels from Michelle Drive to Wrightsville Avenue: Roadside stormwater ditches along Michelle Drive constitute the beginning of the project corridor where there are existing stormwater channels. Wetlands and ditches were delineated along Michelle Drive and through city property along an existing stormwater ditch south of Michelle Drive. From the City property, the channel turns north to a pipe that conveys stormwater underneath Wrightsville Avenue to Shell Road Village. The channel in this section was determined to be an RPW at a point approximately 200 feet south of Michelle Drive and downstream through Shell Road Village to the confluence of South Branch Bradley Creek. Ditches upstream of this point and approximately 150 feet west along both sides of Michelle Drive were determined to be linear wetlands. A small, approximately 0A acre, human impacted hardwood flat wetland north of Michelle Drive was also delineated. The source of hydrology to this wetland is impounded water from downstream ditches and stormwater drainage from properties along Michelle Drive, a cul-de-sac north of the wetland on Renee Drive, and properties that drain underneath Wrightsville Avenue from Andover Road. Residential properties abut this wetland to the east and west. No direct impacts are expected for this wetland. Proposed culvert improvements will instigate more positive flow from this stormwater drainage system into ditches south of Michelle Drive to reduce stormwater flooding at this location. Proposed channel improvements in this section of the project are expected to temporarily impact approximately 0.34 acres of jurisdictional waters including linear wetlands and the RPW starting 200 feet south of Michelle Drive. Permanent impacts are expected at roadside stormwater ditches identified as linear wetlands during US Army Corps of Engineers site visits. These include two small ditches along the south side of Michelle Drive and one ditch along the north side of Michelle Drive. These permanent impacts will include approximately 0.03 acres of linear wetland. The ditch adjacent to the 0.1 acre wetland north of Michelle drive will not be tilled or impacted in any way. Jurisdictional Winters Along Proposed New Drainage Channel Through the Black Property: Two distinct wetlands were delineated from the point where the existing channel turns north toward Wrightsville Avenue, to a sediment basin behind townhouse properties along Hinton Avenue. Along the western portion of this segment is a wetland that is adjacent to an approximately 100 foot section of channel that flows from Michelle Drive, and extends approximately 150 feet cast along the proposed new drainage channel on the Black Property. Hydrology to this wetland is supplied by hill slope seeps and to a minor extent by stormwater backflow from the existing stormwater drainage system. Vegetation is dominated by hardwood species and typical Coastal Plain wetland plant communities. The proposed channel will likely affect a small portion of this wetland due to changes in groundwater NCDENR One Stop Meeting April 2009 flow that may occur as well as direct impacts from channel construction. Approximately 0.18 acres are expected to be permanently impacted by channel construction at this wetland. This system is geographically connected to a larger hardwood flat within the Black Property; however, the proposed project is unlikely to affect the hydrology in this larger wetland system as this is supplied by major hill slope seeps and tributaries well south of the proposed project corridor, and existing grade at tributary confluences with channel improvements will be maintained. The proposed channel will permanently impact a small pocket wetland that is connected to a sediment basin south of the Hinton Road townhouse property. This wetland is approximately 0.4 acres in size and hydrology is supplied by stormwater runoff from impervious surfaces along Hinton Avenue. Vegetation in this wetland consists of typical coastal plain wetland plant communities and invasive species. This wetland is .also used as a dumping ground of concrete construction wastes from an adjacent property. During storm events, this wetland currently drains through a fire ditch that runs through the Black Property into a large hardwood flat previously mentioned. The proposed channel will redirect flow from this wetland through the proposed channel. 'this wetland will be permanently impacted by the construction of the new channel through the Black Property.. NCDENR One Stop Meeting April 2009 Coburn, Chad From: ONeal, Jessi E Sent: Friday, October 15, 2010 8:54 AM To: Coburn, Chad Subject: 2 things 1. Re:Bradley Creek Drainage my people are now saying that this is past the tidal influence and therefor not PNA (don't advertise this to applicants just yet). News to me. Anyhoo, so now it's more of a DMF suppporting you guys and USACE. I can provide comments about enhancement for control of sediment/poor water quality that will end up in downstream PNA, but from what I can tell this is not my show. _( 2. Re: Trails end road spot I can't deny them this slip be technically they already have on that's even closer to land on the same side as the lift. We are most likely going to ask them to put the two lifts directly beside each other if they convert the dock to a fixed structure with a T-head. I'm going to wait until we go out there next week though. thanks SIGN UP SHEET . SCO.PING MEETING Piedmont Natural Gas Line 150 Scotland/Robeson/13lade n/CoIumbus/Brunswick Counties September 29, 2010 Name Agency Phone Email ameron Weaver NCDENR-DEAD 910-796-7427 Cameron. Weaver@ncdenr.gov Robb Mairs NCDCM 910-796-7423 Robb.Mairs@ncdenr.gov ]-leather Coats NCDCM 910-796-7424 Heather.Coats@ncdenr.gov Chad Coburn 04 NCDWQ-401 910-796-7379 Chad.Cobum@ncdenr.gov Z.Davc Bailey USACE 910-251-4469 David.E.Bailey@usace.army.mil Chad Turlington NCDWQ-401 910-433-3320 Chad.Turlington@ncdenr.gov Paul Masten. S&ME 910-799-9945 PMasten@smeinc.com I -toward Hall US FWS 919-856-4520 x27 Howard_Flail@fws.gov John Hammond US FWS 919-856-4520 x28 John_Hammond@fws.gov .i t C ��'G'Crt.0 - �il-% r Ll 1 �j 5��-�'�l�(4'.y�i�'Cel� �i�9i���e�C. Pj gdP"4 Nc( 709--73I '00 ado, z/01VAl z�2a oue'vcx-,A �VJ• t..ta O1-1 G '� -704- o,12a - 4-:5'4-/L 5 @ C�GI,ac_Rt �D. CJ -.1oCI L - S Sz ­024 Ae svSWia 4. pn->! *By Conference Call L rr AW - How 3a(tctiq t,lVIQ `tip1 "I 4--*, A" M Clio - 1 t j- I f I �ri� ony_wt► e_v-c tSGvrp». 6 146 3 b_,�&aw_h�ll�� �URSC�1�,Cpi+ NCDENR WILMINGTON REGIONAL OFFICE 127 CARDINAL DRIVE WILMINGTON, NC 28405 910-796-7215, FAX 910-350-2004 SIGN UP SHEET SLOPING MEETING Natural Gas Line Placement 7/29/2010 Name Agency Phone Email S11 11 i.'YV � *By Conference Call NCDENR WILMINGTON REGIONAL OFFICE 127 CARDINAL DRIVE WILMINGTON, NC 28405 910-796-7215, FAX 910-350-2004 -.co V X 44� Qy� 1�yb C ti S i m E.�ff 7 i 0 4o ds k; VF _ o �6J ` 31.VAINd HON3NA OOOMN33NO � :1 VAI ld No.L N11Nn . i tj a x N N cV N a N U� Z .66 E Trn W � O � � IL � c rd a(D U vZ a 0 Q� - 0' �O� /c n W Q C 4 w � Z >i Its 46 Ir - i 4P �r I IAV SIf va IVA - !3'. I� L ° � y` •Ia .y �=5��y�1��'� � `•'` ♦ - � �' 6'; .. _ _ _'_ _ O __ _—.mot Via. •• " t• !i�. ip�.K', • _ ir•'�j ~ � . j/� "� • ' � '� '� �- � ' "`"' tom. ram• /• �y � low�� , NOV CD i ? v ,.� .,� ,� ' • f r- CD r u • 10 4a / V eANd�b Ja'gin c o A�10 0 o C o o4, eBA `00 eS 196 7 U o � m C PaAp Aelpa,g g a^b 61y�a8 co m o o Q cb o' 4 9 %01/4O �bB,L &,l�sa �m eq .m Nm a o as s& > 4�1D ` e;l4M O gl1��s�48 m 0 4� �QD •r 'po o�4�ti / ,m Jp'�eiiay �i'c a t A .8 V A 4G o� vd v 0 L0 A Q aeM i 0IGP aieAlld 0 0 Q P i 40UOJ a (/ any pooHweGIU—• •rvnlAd 3S pa uoj6uljunH oA� � tl of A Jp 00 �0 1�°r oaf el&Aod AV o� u J0 auwo41m,, !s u a„y(0lgPuo �a OIAV asod 4)�,8,n Is Pi Q JQ 12OU3 xeO o) a �ti 0 y j A4�d JQ i ew? wo a A00 D Q- ,,,,,Wood Dr rp e A494 9 0)0, Q� tl � 4 SIGN UP SHEET SCOPING MEETING Bradley Creek Stormwater Improvements Wilmington New Hanover County 10/7/2010 Name Agency Phone Email ameron Weaver NCDENR 910-796-7427 Cameron. Weaver rr ncdenr.gov won Sechler* NOAA-NMF 252-728-5090 Ron.Sechler a,noaa.gov ✓Jessi O'Neal DMF 910-796-7311 Jessi.Onea! a nedenr. ov ✓Molly Ellwood NCWRC 910-796-7240 N1oliv.Ellwood�ncwildlife.org Rabb Mairs DCM 910-796-7423 Rabb.Mairs a nc� denr.�av ✓Rhonda Hall DLR 910-796-7312 Rhonda.Hall.((ncenr.gov kDave Timpy USACE 910-251-4634 David. L ;Gimp ii)usace.army.miI hristy Wicker USACE 910-251-4637 Christine. W.Wicker a usace.army.mil inda Willis DWQ-NPDES 910-796-7343 Linda.Willis a nedenr.gov had Coburn DWQ-401 910-796-7379 Chad. Cob Urn@ncdenr.g_o_v_ Jeremy Humphrey DEH-Shellfish 910-796-7287 Jeremy.l lumphrey i ngdenr, av Alan Moore . Entrix �a9- a7 amoore(c ,entrix.com Michael Hanson Dewberry&Davis NlHansonadewberry.com ave Mayes City of —Wilmington 910-343-4777 Dave.Nlayes2wilmingtonnc.gov *By Conference Call NCDENR WILMING,rON REGIONAL OFFICE 127 CARDINAL DRIVE WILMINGTON, NC 23405 910-796-7215, FAX 910-350-2004 W DER & LAND SECTION Fax:919-716-6766 c o v E R S H E E T From the dcsk of... Janet D. Leach Paralegal 1kpaTtrncn1 oflu>i+cc P. O. Box 629 TO: (919) 716-6m Fax: (919) 716-6766 j1coch&r,u;1.jur.state ne.itc To: Rick Shiver Linda Lewis Fax No: (F) Subject: Mona. Faye Black v. NCDENB, DWQ Date: October 14, 2003 pages: 2, includiug cover sheet COMMENTS: Oct 14 '03 2:24 P.01 FAX Please be informed that the Hearing for the above -subject case has been scheduled according to the attached Notice Of Hearing. If you have not already made arrangements for a pre=trail conference, please contact Beverly Coats, Mary Peony's secretary, to set up a time that is convenient for you. If she is not available, you may contact me directly at the number set out above. Please mark your calendars accordingly. - n i -WATER & LAND SECTION Fax:919-716-6766 Oct 14 '03 2:24 P.02 FILED OFFICE OF ADMINISTRr\TIVE HEARINGS Oct 07 1121 AM 2003 STATE OF NORTH CAROLINA IN THE OFFICE OF ADMINISTRATIVE HEARINGS COUNTY OF NEW HANOVER 03 EHR 1169 Mona Faye Black } Petitioner ) ) vs. ) NOTICE OF HEARING NC Division of Water Quality of the NC } Department of Environment and Natural ) Resources ) Respondent ) NOTICE IS HEREBY GIVEN that the above -captioned case will be brought on for hearing before the undersigned administrative law judge as follows: DATE: November 13, 2003 TIME: 9:30 a.m. PLACE: Carolina Beach Municipal Building Council Chambers 1121 N. Lake Park Blvd. Carolina Beach, NC 1. This hearing will be conducted in accordance with G.S. Chapter 150B and the Rules of Contested Case Hearings in the Office of Administrative Hearings, copies of which may be obtained at cost from Molly Masich, Director of APA Services or by accessing the OAH Web page at http:I/www.oah.state.ne.usiheacings/#Chapter3. 2. Unless otherwise deteimined by the administrative law judge, the hearing will proceed in the following sequence: a. Call of the case b. Motions and other preliminary matters c. Stipulations, agreements, or consent orders entered into the record d. Opening statements e. Presentation of evidence; cross-examination f. Final arguments 3. All parties are hereby notified to bring to the, hearing all documents, records, and witnesses needed to present the party's case. r 0 cl E U T-, '0 •� C Mt 0 0 � oox'� moo- x M p —Z r0+ CD o C CD ¢ Y � N x N > bb O v V w O - U C v O ROY COOS-- NFTORNE=Y GENERAL Sate of forth Carolina Department of Justice P. O. BOX 629 RALI?IGH 2 7602-062 9 MEMORANDUM Reply to: Mary Penny'rhompsort Environmental Division Direct; (919) 716.6966 Fax: (919) 716-6766 mthompCmail.jus.state.nc.us TO: Rick Shiver, DWQ Wilmington Regional Office Supervisor Linda Lewis, DWQ Environmental Engineer, Wilmington Regional Office FROM: Mary Penny "Thompson, Assistant Attorney General DATE: July 17, 2003 RE: Stormwater Permit Appeal by State Properties, LLC of Wake County DWQ No. SW 8030107; OAH No. 03 EHR 1169. Please note that I have been assigned to handle the above -referenced contested case. [ will need to begin preparing our case as soon as possible. Please review the important dates listed below and send a copy of the requested information by mail, fax, or hand delivery to the Attorney General's Office. A copy of the Petition is attached. August 8, 2003 Document Constituting Agency Action. I need a clean copy of Stormwater Permit SW8030107 and the permit file by August 4, 2003, September 22, 2003 Any Discovery must be sent to Petitioner by this date to give us enough time to receive answers prior to hearing. Any discoveEy sent to us by Petitioner must be responded to within 15 days of receipt of the questions. All discovery must be completed by October 27, 2003. Week Beginning November 10, 2003 Hearing is set in Wilmington, NC with Melissa Owens Lassiter, Administrative Law Judge presiding. You have been identified as potential witnesses in this case. If you feel you should not be listed as a witness or if you know of additional witnesses, please notify this office immediately. If you have any questions or comments regarding this case, please call me at: (919) 716-6966. cc: Steve Lewis, Environmental Specialist - Archdale Bldg. PLEASE PRIN"I' CLE 1RLY OR TS G�� STATE OF NORTH CAROLINA COUNTY OF (1) NEW HANOVER 3 2i44i IN THE OFFICE OF .ATI VE HEARINGS (2) MONA FAYE BLACK ) (your name) PETITIONER, } PETITION V. ) FOR A (3) N.C. DIVISION OF COASTAL MANAGEMENT OF CONTESTED CASE BEARING .HE N.C. DEPARTMENT OF ENVIRONMENT AND NATURAL } ;ESOIIRCES RESPONDENT. } (The State agency or board about which you are complaining) ) I hereby ask for a contested case hearing as provided for by North Carolina General Statute §' 154B-23 because the Respondent has: (Briefly state facts showing how you believe you have been harmed by the State agency or board.) SEE ATTACHMENT (If more space is needed, attach additional pages.) (4) Because of these facts, the State agency or board has: (check at least one from each column) X deprived me of property; __X_ -,exceeded its authority orjurisdiction; ordered me to pay a fine or civil penalty; or ,,_acted erroneously; _otherwise substantially prejudiced my rights; AND Xfailed to use proper procedure; �X acted arbitrarily or capriciously; or __xfailed to act as required bylaw or rule. (5) Date'. (6) Your phone number: ( 9 10 74.9-7226 — (7) Print your full address: 5553 Oleander Drive Wilmington, NC 28403 street a res p.o. ox citystate zip (8) Print your name: Mona Faye Black (9) Your signature. You must mail or deliver a COPY of this Petition to the State agency or board named on line (3) of this form. You should contact the agency or board to determine the name of the person to be served. CERTIFICATE OF SERVICE 1 certify that this Petition has been served on the State agency or board named below by depositing a copy of it with the United States Postal Service with sufficient postage affixed 0 R by delivering it to the named agency or board: N.C. Division of Coastal Management of (10) Dan Oakley (11} the N.C. Department of Environment and (name of person served) (State agency or board listed on line 3) a ura-L Resources (12) Office of the General. Counsel, t601 Mail Service Center, Raleigh, NC 27699-1601�� (street addresslp.o. box) (city) (state) (zip code) KENNETH A. SHANKLIN { 13) This the 2nd day of July 2003 TTORNEY FOR PETITIONER (14) Mona Faye Black ---f � �(�l4 MARKET STREET, P.O. BOX t347 7�rrT-VrKMrrnAr LTr, 1l0�n1l (your signature) When you have completed this form, you MUST mail or deliver the ORIGINAL AND ONE COPY to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. H•06 (t 1199) ATTACHMENT TO PETITION FOR A CONTESTED CASE HEARING July 2, 2003 On June 2, 2003, Rick Shiver, Water Quality Regional Supervisor, of the Division of Water Quality ("DWQ") of the North Carolina Department of Environment and Natural Resources ("DENR")' issued Stormwater Management Permit No, SW8 030107 ("Permit"), a copy of which is attached hereto and marked as Exhibit "A," to Mr. Johnny Ivey, Member Manager of Park -Hinton, LLC ("Permittee"). The Permit ' pertains to the Hinton Oaks Townhomes ("Project"), a High Density Stormwater Project, located at the intersection of Hinton Avenue and Park Avenue in Wilmington, New Hanover County, North Carolina. The Permit authorizes the installation of stormwater improvements upon the subject real property for the construction of 39 townhome units constituting the Project. The Project lies within the corporate jurisdiction of the City of Wilmington in New Hanover County. On May 16, 2002, the City of Wilmington's Subdivision Review Board at a regularly scheduled meeting granted approval for the Project subject to the following condition: After a brief consideration, Mr. Saulnier moved to amend his Previous motion with a motion to approve_ the subdivision request for Hinton _Oaks Townhomes based on staff recommendations, with the additional condition that no stormwater currently collecting on subject site shall be allowed to be diverted onto the neighboring properties. (Emphases in Original). Subdivision Review Board Meeting Minutes — May 16, 2002 (City of Wilmington). The Petitioner, Mona Faye Black ("Petitioner"), is the owner of a certain tract of land described in Book 2280 at Page 517 of the New Hanover County Registry. The Petitioner's property lies to the west of the Project and is a neighboring property as referenced in Mr. Saulnier's Motion. Petitioner is a "person aggrieved" under The Administrative Procedure Act ("APA") by the issuance of the Permit as she is a person who is directly and substantially affected and impacted by the administrative decision. N.C. GEN. STAT. § 150B-2(6). Petitioner Attachment to Petition for Contested Case Hearing July 2, 2003 Page -2- will suffer economic damages and loss of property if the subject stormwater improvements as permitted are installed by the Permittee. Lastly, Petitioner is directly affected by the subject administrative decision. Presently, a shallow creek traverses the Project from Hinton Avenue to an existing ditch at the northwestern corner of the Project. The existing ditch shown on the Project's latest Site Plan dated April 1, 2003 (C-1) prepared by Phillip G. Tripp, F.E., is not a water transportation ditch, but a shallow 'ditch that was originally created for fire protection for the Petitioner's property, which is currently being used as woodlands. The Project and Petitioner's land is located in the Seagate Community area of New Hanover County, which area has been subject to flooding and is traversed with narrow old streets and inadequate drainage. Essentially, the area is flat. The Project's Site Plan C-1 shows the installation of a wet pond to store stormwater, but shows an outlet structure and other intakes of stormwater into a new 48" pipe to be installed from Hinton Avenue for discharge into a 3:1 riprap-lined channel directly into the existing ditch upon Petitioner's property. Additionally, the Site Plan C-1 shows the removal of a 24" pipe under Hinton Avenue to be replaced with a new 48" pipe. The. 48" pipe will be owned by the City of Wilmington with an appropriate easement. Clearly, the Project's Site Plan C-1 shows a marked increase in the volume and direction of stormwater from properties east of Hinton Avenue and the Project onto the Petitioner's adjoining property. There exists no easement across the Petitioner's property for such stormwater diversion. The currently approved Permit will create considerable flooding problems for Petitioner's property, which use is unreasonable and violates Petitioner's constitutional and -2- Attachment to Petition for Contested Case Hearing July 2, 2003 Page -3- common law property rights. Additionally, the Permit will create a ponding of water upon the Petitioner's property, which would constitute a recurring trespass upon Petitioner's property under the holding of the Court of Appeals in Galloway v. Pace Oil Co., 62 N.C. App. 213, 302 S.E.2d 472 (1983). If the government creates the diversion of water, there is a taking of Petitioner's property by the trespass and/or nuisance. In this context, the "reasonable use" rule for surface water drainage adopted in Pendergrast v. Aiken, 293 N.C. 201, 236 S.E. 2d 787 (1977) is not applicable. It is a taking of Petitioner's property as concluded by the North Carolina Supreme Court in Board of Transportation v. Warehouse Corp., 300 N.C. 700,268 S.E. 2d 180 (1980). Furthermore, the doctrine of "moving to the nuisance" or "priority of occupation" has no applicability in an action against the State for a taking by flooding directly caused by permanent structures constructed or authorized by the State. It is the contention of Petitioner that the Stormwater Permit as issued violates the City of Wilmington's Subdivision Review Board's approval of the Project, violates the provisions of Title 15A NCAC 211.1000 et seq. pertaining to stormwater control for high density projects within the coastal counties, including New Hanover County, and violates the Petitioner's due process rights of the right to proffer evidence that the proposed stormwater project and improvements will cause harm and injury to Petitioner's prope Y. Kenrfeth A. Shanklin Attorney for Petitioner, Mona Faye Black 214 Market Street P. 0. Box 1347 Wilmington, NC 28402 Telephone: (910) 762-9400 Telephone: (910) 251-1773 NO.47S. P . 2 �- NCDENh' I�IRO JUN.24,Q 83 v"12 40 Michael F. Easley, Governor William G. moss Jr., Secretary M GQ C North Carc(ina Department of Environment and Natural Resources Alan W. Klimek, P.E„Director Division of Water Quality June 2, 2003 EXHIBIT Mr. Johniny Ivey, Member Manager Q Park -Hinton, LLC 6229 Richard Bradley Drive Wilmington, NC 28409 Subject: Permit No, SW8 030107 Hinton Oaks Townhomes High density Stormwater Project New Hanover County Dear Mr. Ivey: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Hinton Oaks Townhomes on April 2, 2003. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 1SA NCAC 2H.1000. We are forwarding Permit No. SW8 030107 dated June 2, 2003, for the construction of Hinton Oaks Townhomes. This permit shall be effective from the date of issuance until June 2, 2013, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the sormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request are adjudicatory hearing upon,written request within thirty t0) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P,O, Drawer 27447, Raleigh, NC 27611- 7447. Unless such demands are made this permit shall be final and binding. if you have any questions, or need additional Information concerning this matter, please contact Linda Lewis, or me at (910) 395-3900. Sincerely, Rick Shiver Water Quality Regional Supervisor RSSarl: S:IWQSiSTORMWATIPERMIT1030107.jun03 cc: Phil Tripp, P.E, Tripp Engineering Tony Roberts, .New Hanover County Building Inspections Beth E, Wetherill, New Hanover County Engineering Linda Lewis Wilmington Regional Office Central Files N. C. Division ciWaterQuaiity 127 Cardinal drive 5eension (910) 395-3900 cuatamerService Wilmington Regional Office Wilmington, NC 26405 (910) 350-2004 Fax 1 500 623.7748 ,N 011Eh7 NO.475 P.3 .TUN. 24. 2ee3 12. 40Pr1 NCDENR WIRO State Stormwater Management Systerns Permit No. SW8 030107 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL. RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Johnny Ivey, Park -Hinton, LLC Hinton Oaks Townhomes New Hanover County FOR THE construction, operation and maintenance of a. wet detentiongrid in compliance with the provisions of 15A NCAC 2H .1 Dag (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Qualrty and considered a part of this permit. This permit shall be effective from the date of issuance until June 2, 2013, and shall be subject to the following specified conditions and limitations. 1. DESIGN STANDARDS 9 . This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2, This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 68,737 square feet of impervious area, 3. The tract will be limited to the amount of built -upon area indlcated on page 3 of this permit, and per approved plans. 4. All.stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. A permit modification must be submitted and approved prior to the construction of additional built -upon area from outside of the approved drainage area. 2 N0.475 -' • 4 JUN.24.2003 12 40PN NCDENR WIRO State Stormwater Management Systems Permit No. SW8 030107 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: Hinton Oaks Townhomes Permit Number: SW8 030107 Location,: 101 Hinton Avenue, Wilmington New Hanover County Applicant: Johnny Ivey, Member Manager Mailing Address: Park -Hinton, LLC 6229 Richard Bradley Drive Wilmington, NC 28409 Application Date, Receiving Stream/River Basin: Stream Index Number. Classification of Water Body: Drainage Area, acres: Onsite, sq. ft.: Offsite, sq. ft.: Total Impervious Surfaces, sq. ft.: Pond Depth, feet: TSS removal efficiency: Permanent Pool Elevation, FMSL: Permitted Surface Area, sq. ft.: Permitted Storage Volume, cubic ft.: Temporary Storage Elevation, FMSL: Controlling Orifice: Permitted Forebay Volume, cubir, ft.: April 2, 2003 .. Bradley Creek / Cape Fear CPF24 18-87-24-4.(1 ) "SC HQWIP 4.03 4.03 0 68,737 6.4 90% (no filter is required) 14.00 5,215@Permanent Pool 5,891 15.00 1.25"0 pipe (drawdown in 2-5 days) 3,392 3 NO.475 -P. 5- JUN.24.2003 12 40PM NCBENP WIRO State Stormwater Management Systems Permit No. SW8 030107 II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater-system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months), b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unciogging of outlet structure, orifice device, flow spreader, catch basins and piping.. g, Access to the outlet structure must be available at pit times. 4, Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken, 5. Decorative spray fountains will not be allowed in the stormwater treatment system. 6, The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. B. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. At least 30 days prior to the sale or lease of any portion of the property, the permittee shall notify DWQ and provide the name, mailing address and phone number of the purchaser or leasee. An access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property, 4 NO.475- _P. 6- `_ JUN.24.2003 12 40PM NCDENR NIRO State stormwater Management Systems Permit No. SW8 030107 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. c. Transfer of ownership. d.. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, or sale of all or part of the project area: The project area is defined as all propertyowned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, aftering, or piping of any vegetative conveyance shown on the approved plan. 11, The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction, if the proposed SUA exceeds the amount permitted under this permit, a modification to the permit must be submitted and approved prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the F ermittee for a minimum of ten years from the date of the completion of construction. 13. The permittee must maintain compliance with the proposed built -upon area and ensure that the runoff from all the built -upon is directed into the permitted system. 14, The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, -the permittee shall submit a written time schedule to the Director for modifying the site to meet minimurn requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 15. The permittee must maintain the current permitted drainage area. No additional runoff from outside of the permitted drainage area boundary may enter the permitted stormwater facilities without first applying for and receiving a permit modification. Ill. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit.a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request, 2. Failure to abide by the conditions and (imitations contained in this permit may subject the Permittee to enforcement action by the ❑ivision of Water Quality, in accordance with North Carolina General Statute 143-215.5A to 143-215.6C. A N0.475 "P . 7- JUN.24.20�3 12 41PM NCDENR WZRO . State Stormwater Management Systems Permit No. SWS 030107 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be impposed by other government agencies (local, state, and federal) which have jurisdiction. 4. in the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate dorrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property daring normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8, Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. Permit issued this the 2nd day of June, 2003. NORTH CAROLtNA ENVIRONMENTAL MANAGEMENT COMMISSION aWKlimeK, REL,Direator' T Division of Water Quality By Authority of the Environmental Management Commission NO.475 .8 - -� JUN 24 208�3 12;'41PM NCDENR TIRO State Stormwater Management Systems Permit No. SW8 030107 Hinton Oaks Townhomes Stormwater Permit No. SW8 030107 New Hanover County Designer's Certification 1, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekiyl full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification, Noted deviations.from approved plans and specification: Signature Registration Number Date SEAL 7 NO.475 'P.9— JUN.24. 2003 �12' 41PM NCDENR WIRO State Storrnwater Management Systems Permit No. SW8 030107 Certification Requirements: I. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. I. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. The outlet/bypass structure elevations are per the approved plan. 5. The outlet structure is located per the approved plans. B. Trash rack is provided on the outlet/bypass structure. 7. All slopes are grassed with permanent vegetation. a. Vegetated slopes are no steeper than 11. 9. The inlets are located per the approved plans and do not cause short- circuiting of the system. 10. The permitted amounts of surface area and/or volume have been provided. 11. Required drawdown devices are correctly sized per the approved plans. 12. All required design depths are provided. 13. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 14, The required system dimensions are provided per the approved plans. cc; NCDENR-DWQ Re ionai Office Tony Roberts, New Hanover County Building Inspections NO.475�• 10 JUN.24.2003 12 41PM NCDENR WIRO i: o.'�?'.'<;se�.:.�., =�K: »,.;y=,\.+•;k;��+h: .'.�� �, 'T� ;;5�,,.1+, +.' '7'' R'�.��'�F:`{:� i°-+`,ar .T>1.:,3'�+�'a 7� i mil,'r+ ::+��� '.?r ;,.i, off:\. 2' p �5 •i`T,�a.�S .%(+,....,+.. F ti:f<`0., .'L\`� \` lYf'M r•�I-fir: ): Date Received Fee Paid Permit Number State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopled for use. as art arigtnal I. GENERAL INFORMATION Applicants name (specify the name of the corporation, individual, etc. who owns the project): lark -Hinton, LLC _ . 2, Print Owner/Signing Official's name and tide (person legally responsible for facility and compliance): Ighoy 1-ye, M er Mailing Address for person Hsred in item 2 above: (2 5 0 � 5 40 - zW 3) City. _ OVtlminato .,_ _ State:- 1VC Zip: 28409 Telephone Number: 910-4 3-2993 4. Project Name (subdivision, facility, or establishment name —should be consistent with project name on plans, specificarions, letters, operation and maintenance agreements, Hinpoa QAkLTo%hoxngs. 5. Location of Project (street address): 101 Hinton Avenue City: wilmingtCM _ _ _ County: Ne Han ve 6. Directions to project (from nearest major intersection): FroM Ol er rive US 7b d l e i� 132 drive ox 1 Mile, to l ft onto Hi ton Av riv I0001f NE to int -mection of Park Av , andHintpnAve. Site is on left. 7. Latitude: N 34° 13' 00" L.ctnitude: W 770 5 ' QO" of project 8. Contact person who can answer questions about the project: Name: PhilljR T i Telephone Number: 910-763-5100 II. PFJtWT INFORMATION: 1. Specify whether project is (check one): _ X New Renewal Modification Farm SWU-101 Version 3,99 Page 1 of 4 NO,475" P-11 JUN.24.2003 12:41PM NCDENR WIRO — _ '_. If this application is being submitted as the result of a renewal or modification to an existing permit, list The existing permit number and its issue date (if known) 3. Specify the type of project (check one); Low Density X High Density Redevelop _General Permit Other 4. Additional Project Requirements (check applicable blanks)! CAMA Major X SedimentationlErosion Control 404/1401 Permit NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623 -6748. W. PROJECT WORMAnoN 1. In the space provided below, summarize how stormwater wilt be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project. n- ite wet detention basin 2, Stormwater runoff from this project drains to the Ca e F ar River basin. 3. Total Project Area: _ 4.03acres S. How many drainage basins does the project have? 1 4. project Built Upon Area; _, 39.2 %. 6. Complete the following information for each drainage area. If there are more'than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. � 'I �y-, '•1 :.Jr, i � •'} •wWs!!� �YY.iQ•':� .+.. -. �; ^:7iYi l•; j r �] p�y�$¢ j�� Q .. ,'�. i' 7i Jrtr r!Pi-!"Vs�fT'„"r" ii "�4,}•'�,;.a+� _ ^! a p� y1i III ,••_ I �l I,.}c a k •']ra�naei?f."�L• •;A(. �X:14 Receiving Stream Name Bradley Creek ' Receiving Stream Class SC HQW Drainage Basin Area 4.03 ac Existing impervious * Area - Proposed Impervious * Area 1.58 ac % Impervious* Am (total) 39.2% ,>k}a,i'•et On -site Buildings 28,229 sf On -site Streets - On -site Parking 3 5,43 9 sf On -site Sidewalks - Other on -site 5,070 sf Off -site Total; E,68,737 sf E_ " Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas sidewalks, gravel areas, etc. FormSWU-lot Version3.99 Page 2of4 N0.475--P .12 JUM.24.2003 12 41PM NCDEW WIRO - 7. How was the off -site impervious area Iisted above derived? Iv. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each Iot must be provided as an attachment. 1. 777e following covenants are intended to ensuee ongoing compliance with state stormwater managemenr peewit number as issued by the Division of Water duality. These covenmes miry not be charged or deleted without the consent of the Stara 2 No Mare than square feet of airy lot shall be covered by sir 4MMs of r'mpendbus Ma e?ials. 1'rrrpervlous materials Include asphalt graw4 concrete, birch stone, slate or similar mcrtenal'butdo nor include wood decking or the water surface ofswirnmtng pools 3. Swales shall not be filled it; piped or altered except as necessary to provide driveway crossiTs. 4. Built -upon area in excess ofthe permitted amount requires a state stormwater management pe=t madifioa lon prior to construotto)% 5. Allpermitted nm from outparaek or future development shall be tTrrected into the pem9tted stcrmiater control system, These comecoons to the stomNater control sDdem shall be perfomed in a manner that rnnintairts the integrity and performance of the .system as permitted By your signature below, yore certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable itans required above, that the covenants will be binding on all pazaes and persons claiming tinder them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stonnwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and t.reneral Pemiits Unit at (910) 733-5083 for the status and availability of these forms, Farm SWU-102 Form SWU-103 Form SWU-104 Form SWU-105 F'onn SWU-106 Form SWU-107 Form SWU-I08 Form SWU-109 Wet:Detention Basin Supplement Infiltration Basin Supplement Low Density Supplement' Curb outlet System Supplement Off -Site System Supplement Underground filtration Trench Supplement Neuse River Basin Supplement Innovative Best Management Practice Supplement Form SWOT-10I Version 3.99 Page 3 of 4 NO.475�V .13 SUN.24.2003 12:42PM NCDENR WIRO ��— V1. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ), A complete packaap ge includes all of the items rsted below. The complete application package should be submitted to the appropriate DWQ Regional Office. 1. Please indicate that you have provided the following required information by initialing in the space provided next to each itetn- Applicant's initials • Original'and one copy ofthe Stonnwatcr Management Permit Application Form • One copy of the applicable Supplement Form(s) fnt each BMP cm • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of swrmwatertreatrnmt/ntanagement roe - Two copies of plans and specifications, including' G - - Development/Project name - Engineer and firm - Legend North arrow Scale - Revision mumher and date - Mean high water line Dimensionedpropert3 rojectboundary Location map with named streets orNCSR numbers Original contours, proposed contours, spot elevations, finished floor elevations Details of loads, drainage featms, collection Mtems, and starmwater control measures Wetlands delineated, or a note on plans that none exist Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations Drainage areas delineated Vegetated buffers (where required) VII. AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf: please complete this section. ' Designated agent (individual or firm): Tr'Tring Engineering. P C. Mailing Address: 419 Chestnut Street City: _ 3KIhmn —rl`! _„_ _ State: SC Zip: — 28401 Phone: 9 6 963-5100 Fax: , 910 763-5631 VIII. APPLICANT'S CERTIFICATION 1, (print ar type name of person listed in General Information, Item 2) M Johnny Ivey certify that the information included on this permit application form is, To the best of my kgowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions 'and protective covenants will be recorded, and That the proposed project complies with the requirements of ISA NCAC 2H .1000. Signature:�.L�.,f _ _ _ _ Date: le= Form SVIU-101 'version 3.99 Page 4 of 4 NO, 475T P . 14� JUN.24.2003 12:42PN_ _ NCDENR WIRO Permit No. Z11 �v _ 6 Ito be prov1ded by D*'Q) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form pray he photocopied for we as an original r]WO Stormwater 11�anagznent Plan RVIew: A complete stormwater management plan submittal includes a wet detention basin supplement for each basin, design calculations, plans and specifications showing all basin and outlet structure details, and a signed and notarized operation and maintenance agreement. I. PROJECT INFORMATION (please complete the following information): Project Name; Hinton Oaks Townhornes Contact Person: Charles Cazie Phone Number: L910 763-5100 For projects with multiple basins, specify which basin this worksheet applies to: 1 elevations Basin Bottom Elevation 8. fL Permanent Pool Elevation 14.0 ft. Temporary Pool Elevation 15.0 ft. areas (floor of the basin) (elevation of the once) (elevation of the discharge structure overflow) Permanent Pool Surface Area _5,125 sq,ft. (water surface area at the orifice elevation) Drainage Area 4.03 ac. (on -site and off -site drainage to the basin) Impervious Area •1.58 ac, (on -site and off site drainage to the basin) volumes Permanent Pool Volume 17,169 cu.ft. (combined volume of main basin and forebay) Temporary Pool Volume 5.891 cu k (volume detained above the permanent pool) Forebay Volume 3 39Z cu.ft- ' (approximately 20% of total volume) Other parameters SA/DA' 2.10 (surface area to drainage area ratio from DWO table) Diameter of Orifice 1.25 in. (2 to 5 day temporary pool draw -down required) -Design Rainfall 1.0 in. Design TSS Removal2 90 % (minimum 85% required) Form SWU-Ia'_ Rev 3.99 Page 1 of 4 NO. 475'P.15 JUN.24.2003 12t42PM NCDENP WIRO '- - Footnotes: I . Wfien using the Division SA/DA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non- standard table entries. 2. in the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide 90% TSS removal, The NCDENR BMP manual provides design tables for both 8511/6 TSS removal and 90% TSS removal: iI. REQUIkED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices IManual (N.C, Department of Environment, Health and Natural Resources, February 1999) and Adminisrrative Code Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permir Application Form, the agent may initial below. If a requirement has not been met, attach justification, Applicants Initials )__ a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet), C.26 _ _ b. The forebay volume is approximately equal to 20% of the total basin volume. G c. The temporary pool controls runoff from the design storm event. C. d. The temporary pool draws down in 2 to 5 days. C(?�— e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive.flow calculations), f. The basin length to width ratio is greater than 3: 1, C- g. The basin side slopes above the permanent pool are no steeper than 3;1. 2h. A submerged and vegetated perimeter shelf with a slope of 6.1 or less (show detail). - _7L_ i, Vegetative cover above the permanent pool elevation is specified. LZ j. A trash rack or similar device is provided for both the overflow and orifice. e, I�' k. A recorded drainage easement is provided for each basin including access to nearest right- of-way. 1. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified to be performed prior to use as a wet detention basin m, A mechanism is specified which will drain the basin for maintenance or an emergency, III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one) ❑ does X does not incorporate a vegetated filter at the outlet. This system (check one) ❑ does X does not incorporate pretreatment other than a forebay. ?arm SWU-102 Rev 3.99 Page 2 of 4 N0.475 .16' 3UN.24.2003 12:42PM NCDENR WIRO - Nlaintenance activities shall be performed as follows: 1. After every significant runoff producing rainfall event and at least monthly_ 'a. Inspect the wet detention system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition, b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. 2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, maw vegetative cover to maintain a maximum height of six inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e, catch basins, piping, swales, riprap, etc.) quarterly to maintain proper fumctioning. 4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.). The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads 4.5 feet in the mein pond, the sediment shall be removed. When the permanent pool depth reads .— 2.25 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation ! � 0 Sediment R moval El. _LL.75 75 6 ------ Sediment Removal Elevadon 9.5 75% Bottom vation 1_U %---------------------- •------------- ---- Bottom Elevation 8.0 250K FOREBAY MAIN POND 5, Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These plants shall be encouraged to grow along the vegetated shelf and forebay berm. S. If the basin most be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent possible. orm 5 WU- l 02 Rev 3.99 Page 3 of 4 • NO.475 17a `` JUN.24.2003 12:42PM NCDENR WIRO �. -Iii components of the tvet detention basin system shall be maintained in good working order. . I acknowledge and agree by my signature below that I am responsible for the performance of the seven inainteriance procedures listed above. I agree to notify DWQ of any problems with the system or prior to anv changes to the system or responsible party, Print name: Johns Ive Title; Address: Phone: Signature; Date: Io-� 3 t`2a O F �—/�-U a � U , . Note: The legally responsible party should not be a homeowners association unless more than 30% of the lots have been sold and a resident of the subdivision has been named the president. 1, Della C. Baird , a Notary Public for the State of Nojjh Carolina , County of Pender _ do hereby certify that Johnny personally appeared before me this /00" day of &' and acknowledge the due execution of the forgoing wet detentioh basin maintenance requirements, Witness my hand and official seal, c e�� SEAL My commission expires _ October 15, 2006,W� Form S WU- l0? Rev 3.99 Page 4 of 4 N0.475 P.18 — — JUN.24.2003 12:42PM 23 064 5156 NCDENR WIRO 'W- - STATE OF NORTH CAROLINA DEPARTMNT OF THE SECMARY ON STATE STATEMENT OF CHANGE OF REGISTERED OFFICE ANDIOR REGISTERED AGENT SOSID: 051G962 Date Filed: 3/10/2003 3:57:00 PM Elaine F. Marsholl North Carolina Secretary of State Pam= to §55D.31 of the General Statutes of NonT.h Carolina, the undersigned entity submits the following for the purpose of changing its reo Brad once and/or reSistemd Mant in the State ofNorth Carolina. rMRMATION MUMMY ON FILE The wmc of the amity is: park-Sntan LLC Eatity Type: 0Carporafiaa, CCFotp cwMatioA []Almgnrjtt CorpmEM amip Nonprofit Corpatatim, OUnited Liability Cowpaap, ❑Foreign Utuitad LWOity Com[paq UrailM PsrtaasUp, C)Fome Sn T it iroi PartnanWp, []LimitW Liability Pumenhip, OFaroigtt Umitad Liabifiry Pertacmhip The stint addreaa and county of the entity's meglatered office rantendy on file is: 105 Quad Ridge Wad VVUmington, North Carolina 29409 New Hanover County The majbg address jf &$ffenni from the st�+met ad&= of the tegi wed office currently on file is: The note of the can cast registered- Agent is: Johnny I►+ay NEW WORMATION 1. The svea address and county ofthe new re gWacd office of $te entity i r (complete this item a►tly if rite Q&Vz of the regisrwvd office is being ch mgF4 6219 Rickard Bradley Drive iWlodngM, Norf Carolina 28409 New Hanover caunv 2, The mailing addre9a if dVfferetrr funs the Saner addrrsr of the new regi8tuoci office is: (cornplete this item only if Me address of tine registered office is boirng c6vVd) 3. The name of the new registered agent W the now agent's consent to appointment appears below: (complete this Item only if the name of the registwd agent is being chm gad) Johnny Ivey Type or Print Ante of New 44enr *Signature & Title 4. The address of the entity's mgisterod ofcc and the address ofthe business office of its registered agent, as chmiged, wiB bo idcridcal 5. This statement wiff be e$bctive upon filing, unless a date and/or lima is specTled: This is the2tday of 20 a3 r t1f 114-4111- ryNmne tore 1 j pe ar Print Name rid 711le Mates: Flan# fee Is S500. TWO daauamt rnait be (sad Mth tie Seemlary or SWL ' fce�tned of elpfthen, the W" M6610red ROW nor dip a sap■nte wrtrra, amunt to am appointuvwt, xhkh tM.t be ahs4ted to 1116 vUMeUW ML CORPORATIONS DMSION P. 0. BOX 29622 RALEIGrK NC 27626_0622 'R^kM tam,ary wiv F^rm RF_rWs KENNETH A. SHANKLIN ATTORNEYAT LAW 214 MARKET STREET" POST OFFICE BOX 1 347 WILMINGTON, NORTH CAROLINA 28402-1 347 TELEPHONE (910) 762.9400 • TELEFAX (91 0) 251-1773 E-MAIL: SH ANKLAW@ EARTH LINK. NET KENNETH A. SHANKLIN` MATTHEw A. NICHOLS (At SO ADMtTTE01N NEW YORK) July 2, 200 VIA TELEFAX #(919) 733-3478 AND FIRST CLASS MAIL Office of Administrative Hearings 6714 Mail Service Center Raleigh, NC 27699-6714 COPY *130ARD CERTIFIED SPECIALIST IN REAL PROPERTY LAW - RESIDENTIAL, BUSINESS, COMMERCIAL AND INDUSTRIAL TRANSACTIONS ?a, .. wwal Re: Mona Faye Black v. N.C. Division of Coastal Management of the N.C. Department of Environment and Natural Resources Petition for a Contested Case Hearing Our File No. 03050.001 Dear Sir or Madam: Enclosed herewith please find the original and two copies of a Petition for a Contested Case Hearing in the above referenced matter. Please file this Petition and return one copy to us marked "filed" in the enclosed stamped and self-addressed envelope. A copy of this Petition was telefaxed to your office on Wednesday, July 2, 2003, in the late afternoon. Thanking you and with best regards, I remain Sin rel ours, ? ,, Kenneth A. Shanklin KAS/pcc Enclosures cc: Mr. Dan Oakley Office of the General Counsel Mr. Rick Shiver Water Quality Regional Supervisor Ms. Mona Faye Black Mr. Johnny Ivey, Park -Hinton, LLC c/o Susan J. McDaniel, Esq. PLEASE PRINT CLEARLY OR TYPE STATE OF NORTH CAROLINA COUNTY OF (1) NEW HANOVER (2) MONA FAYE BLACK (your name) PETITIONER, (3) N.C. DIVISION OF COASTAL MANAGEMENT OF THE N.C. DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RESPONDENT. (The State agency or board about which you are complaining) IN THE OFFICE OF ADMINiSTRATIVE HEARINGS PETITION FOR A CONTESTED CASE HEARING I hereby ask for a contested case hearing as provided for by North Carolina General Statute § 15OR-23 because the Respondent has'. (Briefly state facts showing how you believe you have been harmed by the State agency or board.) SEE ATTACHMENT (Ifmore space is needed, attach additional pages.) (4) Because of these facts, the State agency or board has: (check at least one from each column) X deprived me of property; _X_exceeded its authority orjurisdiction; ordered me to pay a fine or civil penalty; or acted erroneously; _-X_otherwise substantially prejudiced my rights; AND Mailed to use proper procedure; X acted arbitrarily or capriciously; or _Mailed to act as required by law or rule. (5)Date: July 2_, ,ZQ03 (6) Your phone number: ( 910 799-2776 (7j Print your full address: 5553 Oleander Drive Wilmington, NC 28403 street addreWp.a.box) city state zip (8) Print your name: Mona "Faye Black (9) Your signature::;6g" You must mail or deliver a COPY of this Petition to the State agency or board named on line (3) of this form. You should contact the agency or board to determine the name of the person to be served. CERTIFICATE OF SERVICE I certify that this Petition has been served on the State agency or board named below by depositing a copy of it with the United States Postal Service with sufficient postage affixed OR by delivering it to the named agency or board: N.C. Division of Coastal Management of (10) Dan Oakley T (I1) the N.C. Department of Environment and (name ofpersonserved) � (State agency orboardlistedonline 3) N&turaT -Resources (12) Office of the General Counsel, 1601 Mail Service Center, Raleigh, NC 27699-1601 (street address/p.o_ box) (city) (state) (zip code) KENNETH A. SHANKLIN { 13) This the 2nd day of July 2003 #TTORNEY FOR PETITIONER (14) t4 MARKET STREET, P.O. BOX 1347 -NG Mona Faye Black (your signature) ' `$02 When you have completed this form, you MUST mail or deliver the ORIGINAL AND ONE COPY to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. 11-06 (1 U99) ATTACHMENT TO PETITION FOR A CONTESTED CASE HEARING July 2, 2003 On June 2, 2003, Rick Shiver, Water Quality Regional Supervisor, of the Division of Water Quality ("DWQ") of the North Carolina Department of Environment and Natural Resources ("DENR") issued Stormwater Management Permit No. SW8 030107 ("Permit"), a copy of which is attached hereto and marked as Exhibit "A," to Mr. Johnny Ivey, Member Manager of Park -Hinton, LLC ("Permittee"). The Permit pertains to the Hinton Oaks Townhomes ("Project"), a High Density Stormwater Project, located at the intersection of Hinton Avenue .and Park Avenue in Wilmington, New Hanover County, North Carolina. The Permit authorizes the installation of stormwater improvements upon the subject real property for the construction of 39 townhome units constituting the Project. The Project lies within the corporate jurisdiction of the City of Wilmington in New Hanover County. On May 16, 2002, the City of Wilmington's Subdivision Review Board at a regularly scheduled meeting granted approval for the Project subject to the following condition: After a brief consideration, Mr. Saulnier moved to amend his _previous motion with a motion_ to approve the subdivision request for _Hinton Oaks Townhomes based on staff recommendations, with the additional condition that no stormwater currently collection subject site shall be allowed to be diverted onto the neighboring properties. (Emphases in Original). Subdivision Review Board Meeting Minutes — May 16, 2002 (City of Wilmington). The Petitioner, Mona Faye Black ("Petitioner"), is the owner of a certain tract of land described in Book 2280 at Page 517 of the New Hanover County Registry. The Petitioner's property lies to the west of the Project and is a neighboring property as referenced in Mr. Saulnier's Motion. Petitioner is a "person aggrieved" under The Administrative Procedure Act ("APA") by the issuance of the Permit as she is a person who is directly and substantially affected and impacted by the administrative decision. N.C. GEN. S` AT. § 150B-2(6). Petitioner Attachment to Petition for Contested Case Hearing July 2, 2003 Page -2- will suffer economic damages and loss of property if the subject stormwater improvements as permitted are installed by the Permittee. Lastly, Petitioner is directly affected by the subject administrative decision. Presently, a shallow creek traverses the Project from Hinton Avenue to an existing ditch at the northwestern corner of the Project. The existing ditch shown on the Project's latest Site Plan dated April 1, 2003 (C-1) prepared by Phillip G. Tripp, P.E., is not a water transportation ditch, but a shallow ditch that was originally created for fire protection for the Petitioner's property, which is currently being used as woodlands. The Project and Petitioner's land is located in the Seagate Community area of New Hanover County, which area has been subject to flooding and is traversed with narrow old streets and inadequate drainage. Essentially, the area is flat. The Project's Site Plan C-1 shows the installation of a wet pond to store stormwater, but shows an outlet structure and other intakes of stormwater into a new 48" pipe to be installed from Hinton Avenue for discharge into a 3:1 riprap-lined channel directly into the existing ditch upon Petitioner's property. Additionally, the Site Plan C-1 shows the removal of a 24" pipe under Hinton Avenue to be replaced with a new 48" pipe. The 48" pipe will be owned by the City of Wilmington with an appropriate easement. Clearly, the Project's Site Plan C-1 shows a marked increase in the volume and direction of stormwater from properties east of Hinton Avenue and the Project onto the Petitioner's adjoining property. There exists no easement across the Petitioner's property for such stormwater diversion. The currently approved Permit will create considerable flooding problems for Petitioner's property, which use is unreasonable and violates Petitioner's constitutional and -2- Attachment to Petition for Contested Case Hearing July 2, 2003 Page -3- common law property rights. Additionally, the Permit will create a ponding of water upon the Petitioner's property, which would constitute a recurring trespass upon Petitioner's property under the holding of the Court of Appeals in Galloway v. Pace Oil Co., 62 N.C. App. 213, 302 S.E.2d 472 (1983). If the government creates the diversion of water, there is a taking of Petitioner's property by the trespass and/or nuisance. In this context, the "reasonable use" rule for surface water drainage adopted in Pendergrast v. Aiken, 293 N.C. 201, 236 S.E. 2d 787 (1977) is not applicable. It is a taking of Petitioner's property as concluded by the North Carolina Supreme Court in Board of Transportation v, Warehouse Corp., 300 N.C. 700, 268 S.E. 2d 180 (1980). Furthermore, the doctrine of "moving to the nuisance" or "priority of occupation" has no applicability in an action against the State for a taking by flooding directly caused by permanent structures constructed or authorized by the State. It is the contention of Petitioner that the Stormwater Permit as issued violates the City of Wilmington's Subdivision Review Board's approval of the Project, violates the provisions of Title 15A NCAC 2H.1000 et seq. pertaining to stormwater control for high density projects within the coastal counties, including New Hanover County, and violates the Petitioner's due process rights of the right to proffer evidence that the proposed stormwater project and improvements will cause harm and injury to Petitioner's gy . 01 Ken&th A. Shanklin Attorney for Petitioner, Mona Faye Black 214 Market Street P. O. Box 1347 Wilmington, NC 28402 Telephone; (910) 762-9400 Telephone: (910) 251-1773 BE TRIPP ENGINEERING, P.C. 41 419 Chestnut Street Wilmington, North Carolina 28401 Pllone: (910) 763-5100 • FAX: (910) 763-5631 April 2, 2003 NCDENR Division Water Quality 127 Cardinal Drive Wilmington, NC 28405-3845 Attn: Ms. Linda Lewis Re: Hinton Oaks Townhomes SW8 030107 New Hanover County, NC TE 01127 Dear Linda: REC, V E D A N K 0 2 2003 BY:Z��_ In response to your correspondence dated March 25, 2003, we offer the following: I . Wetlands on site have been delineated. 2. Site plan provides dimensioning of buildings, porches, decks, sidewalks etc. 3. No additional sidewalk is proposed from the sidewalks to the buildings. 4. The permanent pool for the pond is dimensioned. 5. Vicinity map has been updated. 6. Infiltration pond label has been deleted_ 7. Note number 7 specifies that all roof drains are to be directed to the pond. Roof drains for units 1 — 13 & 37 — 39 will be routed to the parking lot and then the pond. This will be done via gutters and downspouts. At this time, we do not have roof line information, but the owner has been notified of it's importance. 8. SDMH No. 2 has been converted to a drop inlet. 9. An additional spot elevation has been added to the plans. Approximately 1725 sf of the parking lot access drive will be routed directly to the 48" pipe. Swale No. 5 is strictly for off -site drainage not roof drainage from the proposed units. Roof drainage from units 1 & 2 will be routed to the pond. 10. Orifice has been corrected to show 1.25" on the detail. Please review for approval and contact us with any questions, comments or if you need additional information. Thank you. Sincerely, Tripp Engineering, P.C. Charles D. Cazier, .I. 5_` 1K:dcb Enc. „ F gyp, r�;, C O Michael F. Easley, Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources r Alan W. Klimek, P.E., Director Division of Water Quality Wilmington Regional Office March 25, 2003 Mr. Johnny Ivey, Member -Manager Park -Hinton, LLC 105 Quail Ridge Road Wilmington, NC 28409 Subject: REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No. SW8 030107 Hinton Oaks Townhomes New Hanover County Dear Mr. Ivey: ' The Wilmington Regional Office received a Stormwater Management Permit Application for Hinton Oaks Townhomes on January 15, 2003. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Please either delineate all wetlands on site, disturbed or undisturbed, or note on the plans that none exist. A. Please provide a labeled and dimensioned typical building footprint for each building tvpe, including porches, decks and sidewalks. 3. Please show and account for any sidewalks leading from the parking lot to the buildings. V% 4. Please dimension the permanent pool contour. 5. Please add the nearest intersection of two major roads to the vicinity map. A major road is any 1, 2 or 3 digit NC, US or interstate highway. 6. The plans label the pond as an infiltration pond, but a wet pond is being proposed. Please clarify. V 7. Please note on the plans that all roof drainage must be directed into the pond. Where will roof drains be directed for Units 1-13 and 37-39, and how will it get to the pond? f 8. To avoid potential erosion problems, you might want to consider converting SDMH 2 into a yard inlet, and allowing Swale #3 to drain into the yard inlet. 9. CIA and CI-2 appear to collect runoff from a portion of the parking lot and then direct it through the 48” RCP without going through the pond. Since the swale behind Units 1 and 2 also drains into the 45" RCP, there is a potential for the runoff from over 3,000 ft2 to leave the site without being treated. #dCt7ENR N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 (910) 395-3900 Fax (910) 350-2004 Customer Service 800-623-7748 Mr. Johnny Ivey. Member -Manager March 25, 2003 V Stormwater Application No. SW8 030107 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to April 25, 2003, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. ; If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this Ietter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. { Please reference the State assigned project number on all correspondende. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Linda Lewis Environmental Engineer RSS/arl: S:IWQSISTORMWATIADDINFO120031030107.MAR03 cc: Linda Lewis Phil Tripp, P.E. DETENTION POND ANALYSIS FILE NAME- G-\DATA\WPDATA\WQS\POND1030107.WKI PROJECT#: SW8 030107 REVIEWER: L. Lewis PROJECT NAME: Hinton Oaks Townhornes DATE: 25-Mar-03 Receiving Stream: Bradley Creek Class- SC HQW # Drainage Basin: Cape Fear Index No. CPF24 18-87-24-4-(1) Site Area 4.03 acres Drainage Area P' 1,11,2, OO square feet Area = 4.03 acres IMPERVIOUS AREAS Rational C Buildings 28228.00 square feet Parking 35439.00 square feet SW 5070.00 square feet square feet square feet square feet TOTAL square feet Rational Cc= 0.12 SURFACE AREA CALCULATION % IMPERVIOUS 39-16% SA/DA Ratio - 2.06% Des. Depth 6 Req. SA 3612 sf TSS: 90 Prov. SA :.] bsf VOLUME CALCULATION Rational ?* Des. Storm inches Rv= 0.40 Bottom 8 rnsl Perm. Pool M sl Design Pool 15 msl Design SA 6567 sf Req. Volume cf Prov. Volume 1cf ORIFICE CALCULATION Avg. Head = Flow Q2, cfs Flow Q5, cfs No. of Orifices Diameter, inches Drawdown = * place a "l " in the box if Rational is used FOREBAY Perm. Pool Volume= Req. Forebay Volume= Provided Volume= Percent= SA@ Elevation= Q= H x W ffl2.4::; days COMMENTS Surface Area , Volume and Orifice are within Design Guidelines 17169 3433.8 3392.00 1.48 sq. in. 0.59 sq. in. 1.23 sq. in. 0.028 cfs in X in 15 { pd � ff via Urr nr q�aSinera°;i Mr•- 1 r�-?,IC,�i °co � � � f � �a� arltiy,: � b i.v��� n acCy SR \,a �qr.� �a�• � S,a, �y ���s fI Pl � Q� ���•, f INLAND GREENS�,'$'r"^ �aS O r y. 1. ti �� 111 % n N4 GOLF COURSE yy i' Li ,s alai `rd Al, `¢?'"7�� �a�'4�... h4a,?. fnfa r � g �� � _ � �en�J � � _tea �J` �'-`�' .� ra s 9� t�jy/ �iis ----� • _ __._,.`_ �-�._..1.� .,, ,!' �.acicC>zPr��� JVr, �nyr.c� of � '" i 4� n s a Cir Vw �'r..' i K Mtb n� �em"���lex>y4{Ytcri c5 74'a % 17 Zt2 r. EtO r l �7r.- +rim 5 r t a�� r^v' � C'�i/` , ! I �rjSr' ,qC�� ,^\ce,.r'Rp• � ' ; � •- dQrl"iDr [ ! �W `a�'•3.� �! 1ec`5 G�. ,I r���� Landfall ! a :3.LEGE CLICK �, L� •� , c: } > ►fAVat� ,� a .'fir t 8r$ 5 fr i( O Gto,Q RaF a . i U✓,.7i � '4 a 4.. � rr /`� sr r,r� J � ;_.. l C l AyXI '•'+!' `3' MCNT>;55ggSo f f �����„ Jac _` 1 Uiklry Ln k 4 A O [Ofa P t ^ 5+.H04L { al pvoa r 2 Portsrde Gr d Q r embr e boa t� PQ , 3 Slantlne Or a Galleon Or r p d !p ° N+QQ y'd a 5 Upper Or d • d l ••' _ r�1,.,a<,. , 3 ` t c2-( .. .......:.....gyp -.F ......_ . m}jfJyLDCeI ti° v�� �r'n�r 11Gfh �z `�`.•.. , '� �� �. '5 8 '.-;4 `,� I`,or'T� /ff/p Q` f1" L NDFALC PrRrhac„- �� '>k'�`a� R} � � �\s� ! 1 �C� CQ��... �� nPsc 16 r J t 0 � �•'n�a q{ e ' ` a1 �e5 r eek ��( l5 C% 1 cr ( (a `< 0 O` 0tC[n[oh Rey O �w% ",✓ �H�3�N. -r`k` f �rE vtOt7U�y A�'`.. €. 1. Mgr, RW Tr* ff �� 403 6, j `c,; hem Bee& �.....1--� a art,Q r - / Cr ��. -..'e'•%fir �!• �j - R'�f T J C`�'%� CrQs r 1a V l a abJv'fei ! �.- 40 Y L �� o 4C 9^r ° 5 Ov, \ i ' a nCa la; ar 4r, IYF a re t I �a 4 E ¢ �� f / m�r 111"J T IU _� a� / y ` w = ° Q[d 1 R1G1�T5VlLLE AVl s „, a pOc��nR ? t�� �tio OjDrch�':C G z 7 6 �QJr S� .; RI�IE' o c? �' �. '[�* 1 f • r YL Xti � f/ lyznrrr, \off% S ry� hnmy� FRUE FCr �^�`F7 m `-�At °r':..P14, '�„Q �o� .m rt;`� 'aJ��;i ��Q' {ptARlfiA GARQE .rP4�ae )off' nrGRE�A. c!/Dfs e� i OanRRriA �•, C,e CSh{' Q qve w nrtnRlrtA` a /ram �� hi ,�W r yr `tsd�p ©CA RBoardry i f 1ac�q e.'� r � 4> h ar1 Cr oy 1,.s^ ? to OLEANDE ar h \ MEMpRSAIJ_;� ice„ k O t ARIBQRUU.t� J. rVEEa1f a• �t �aYj�'�e c„L n, 1 t�`ti:4i-Ati,gAR0�N51�j+ h \ o i rqe Dr �� ,[7( % yaole/ sid I m ^'•+ ° :,; + I'' 6a r r a-�V. r-^• a as „r ; e.- 5ve ` , firench Zr OR FIRE .STAT[ON h ,. 49 If`a4 !ra Va tlGr.0 /C�, nil! RQ \°A •...^ +`'Y +"r 't` s ,�' gym^: ^ ' '7? D o/!/ `�J/ x : r jI F' + y +s• r ,��:) �, .�, `��/i"•'�-w.. ..�y� S#�f_«...._�._.�,.._..-.. ... »-../�'�-�----.'^'�.,..���v, r10 ;u 3 � �+�3�! 4�'w a?'€ C'i% ,b� � i $ a¢ 'c''v- 4 r„�f m� Chi c1i Ln r!,��.�-r3r" Sks a y J . r P r" �Cas� t + Carp! �p -ti J 4P p4p�l r Q�Lr/ /c kshp1` ti34 t „ T F w �S�+t�,�„ Fir d SS ! 4 14Y H ° ' / c a1161Y a` oCa `�..�. i L..^ •- i r 4 r ti r \' 7 �r $ 'Is/ O �^•� pd aWkg R7 s u (�Q a i 1•r•�5" �-...rr�t '�c r+� a'E sa l.Y c Q42 �Sh�tq� CRECK ESV ���,� :Pi � �ILQ'opZ Tra"'ooc ar Par! r c' •r• rR t(;e "~,..., lif l�d �V - 4.� Y^ f k , � ! ♦; b �pr OF R ,tn o yLGuinp r i r....,_...-.�.�_..�..._.......,.. a a. �„ * ; mod' r � ` F ` c ��._. £�,_.,._ .._„«.....•...�....M_.- l[ `�"p{ E`€ aw.. �•�, �� ilV. x T Y j N �Ib n `�,-4 p a ~�� ?�` E ♦J� r� ��r t. + � -;CO RlI a r a e. •�r � i �A �1�,.� 1� i;. 4 -". _-3 t.:.a �e r�;�,. >w,.„.,i...e:..;._e.�...-.• WArFRQG Michael F. Easley, Governor y William G. Ross Jr., Secretary CO r North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality Date: March 26, 2003 To: Phil Tripp, P.E. Company: Tripp Engineering FAX #: 763-5631 FAX COVER SHEET No. of Pages: 1 From: Linda Lewis Water Quality - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SWS 030107. Project Name: Hinton Oaks Townhomes MESSAGE: Phil: I sent you a request for additional information letter today for this project. 1 also went over the project with Laurie Munn, our new engineer, and I discovered another minor problem- the plan details show the orifice diameter as 0.75", but the calculations and supplement show 1.25". Please revise this on the detail sheet. S:\WQS\STORMWAT\ADDINFO\2003\030107-2.MAIZ03 N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service �.� Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NCOEMR- January 15, 2003 Stormwater Narrative Hinton Oaks Townhomes Wilmington, NC TE 01127 Hinton Oaks Townhomes is an existing 4.03 acre tract occupied by one single-family house. This house will be removed for the development of a 39 unit townhome complex. 28,228 sf of buildings, 35,439 sf of parking and 5,070 sf of concrete sidewalks are proposed for a total 39.2% impervious area (68,737 so. The site is considered high density and runoff is proposed to be treated by wet detention then discharged to Smith Creek (classification SC-HQW) in an existing ditch. The pond will be sized to treat the State's 1" and the City of Wilmington's pre -post requirement for the 10-year storm. TRIPP ENGINEERING, P.C. 4.19 Chestnut Si reet Wilniiiigtori, NOrtli Carolina 28401 Phone: (910) 763-5100 • FAX: (910) 763-5631 D-�ol of JAN 15 Z003 January 14, 2003 BY: NCDENR Division Water Quality 127 Cardinal Drive Wilmington, NC 28405-3845 Attn: Ms. Linda Lewis Re: Hinton Oaks Townhomes New Hanover County, NC TE 01127 Dear Linda: N� aQkpn�un �Q Enclosed please find two (2) sets of plans, one (1) signed original and one (1) copy of the application form with narrative, one (1) wet detention basin supplement, two (2) sets of calculations and one check for the application fee. Please review for approval and contact us with any questions or comments. Thank you. Sincerely, Tripp Engineering, P.C. Charles D. Cazier, E.I. CDC:dcb Enc. -, ; -lnrzoa3 • CDC Hinton Oaks Townhomes Stormwater Calculations 01127 Total Drainage Area s . ft. acres 175,547 4.03 Impervious Area Land Use s . ft. acres buildings 28,228 0.65 parking/asphalt 35,439 0.81 sidewalks 5,070 0.12 Total 68,737 1.56 Stormwater Calculations: Time of Concentration: Hydraulic Length (L) = 600 ft. change in Height (H) = 2 ft. Tc = (L' IH)'18p 1 128 9,68 min, Flow for 2 year, 6 hour Storm A): QPRe = (CPftE) x (Ito) x (Area) = 5.92 cfs QPesT = (CPosT) x (I10)x (Area) 12.56 cis Soil Storaae Capacity for 2 vear Storm CN = (98)(% imp.) + (60)(1-% imp.) = 75 P = 3.30 in. for2yr, 6 hr storm S = 10001CN - 10 3.33 Depth (D)= [P-(0.2)(S)]21 [P+(0.8)(S)] 1.16 in. Time to Peak Flow; TP = [(43.5)(D)(Area)] 1 Q2,Posr = 16.22 min. Detention Pond Design: Pond Size: Elevation ft. Surface Area (sq. ft. Normal Pool 14.00 5,215 Flood Pool 15.00 6.567 Top of Bank 17.00 9,152 Bottom of Pool 8.00 508 Provided Storage Volume: Vol. _ [(Normal pool SA + Flood Pool SA) 1 21 x (F.P. elev. - N.P. elev.) 5,891 cu.ft, RECEIVED JAN 15 2003 DWQ PROJ # S-�'J U 2�0l U) °A impervious = 0.392 = 39.2% say 40.0% CPftE = 0.25 CPosT= (°6 0.53 12 = 5.88 in/hr Ito = 7.23 in/hr Flow for 10 year, 6 hour Storm (010): QPRE _ (CPRE) x (125) x (Area) 7.28 cfs QPosr = (CPOST) x (125) x (Area) 15.44 cfs Soil Storage Capacity for 10 year Storm: CN = (98)(% imp.) + (60)(1-% imp.) 75 P = 4,82 in.' for 10 yr, 6 hr storm S= 10001CN-10 3.33 Depth (D)= (P-(0.2)(S)]21 [P+(0.8)(S)] 2.30 in. Time to Peak Flow: TP = [(43,5)(D)(Area)} ! Q,o,Pos-r 26.16 min. acaie ourrace Area me unemum ar normal oar Pond side slopes = 3 :1 De th below N.P. = 6 ft. SAlDA = 0.0210 (Chart for 90% TSS Removal for Wet Detention Pond without Vegetative Filter Required SA = (SAIDA) x (Total Drainage Area) ft. State Volume Reouired for Storaae of first 1" of runoff: Rv = ,05+.009(% imp) = 0.402403 V= (Design rainfall) (Rv) (Drainage Area) = 5,887 cu. ft. ���1111111 l I I I1!!!lr��i 011iY,9 SEPG 9:% 1�3Il4�°Q �rrlrrlilllN11j1 01127pond 1 of 3 A�- I- (+.E)3 s 'IM2003 CDC Pond Volume: Hinton Oaks Townhomes Stormwater Calculations Bottom SA = 508 sq. ft. Normal Pool $A = 5,215 sq. ft. Vol, _ [(N.P. SA + Bottom SA) 121 x (N.P. el. - Bottom el.) 17,169 cu.ft. Forehay; Required Volume Vol. = 20% of storage volume 3,434 cu.ft. Outlet Structure Design: Flow for 2-da drawdown: for 1st 1" of stormwater, Q = Required Vol. 1172.800 sec. (2-days) 0,034 cfs Required Area of Pipe for 2-day drawdown: A= Q 1 (Cd x SQRT(2 x g x h)] Cd = 0.6 go 32.2 ft.1s2 h = (F,P, elev.- N.P. elev.)12 — 0.5 ft. A = 0.0100 sq. ft. Diameter of Pine for 2-dav drawdown; DIA. = SQRT((A x 4) 1 pil 0.1129 ft. 1.35 in. 'Use: 1.25 in diameter pipe Outlet Structure Check: Using a 4' x 4' Basin, Perimeter L = 16 ft, Q = CIA C = (% imp)(.95) + (1-% imp.)(.25) = 0.53 1 = 7,23 in, for a 25 yr. Storm A = 4,03 Acres = 15.44 cfs Q= CwxLxH'S H = [Q 1 (Cw x L)]2" Cw = 3 = 0.47 ft. Peak elevation = flood pool elevation + H = 15.47 ft. Provided Volume 01127 Bottom SA = 272 sq. ft. Normal Pool SA = 1,989 sq. ft. Vol. _ [(N.P. SA + Bottom SA) 1 2] x (N.P. ei. - Bott< 3,392 cu. ft. Flow for 5-day drawdown: for 1st 1" of stormwater, Q = Required Vol. 1 432,000 sec. (5-days) = 0.014 cfs Required Area of Pipe for_5-day drawdown; A= Q I [Cd x SQRT(2 x g x h)] Cd = 0.6 g = 32.2 ft.1s2 h = (F.P. elev. - N.P. elev.) 12 _ , 0.5 ft. A = 0.0040 sq. ft. Diameter of Pipe for 5-da drawdown: DIA. = SQRT](A x 4) / pi] 0.0714 ft. 0.86 in. 01127pond 2 of 3 i. J State Stormwater Management Systems Permit No. SW8 030107 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Johnny Ivey, Park -Hinton, LLC Hinton Oaks Townhomes New Hanover County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until June 2, 2013, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 68,737 square feet of impervious area. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. A permit modification must be submitted and approved prior to the construction of additional built -upon area from outside of the approved drainage area. Project Name: Permit Number: Location: Applicant: Mailing Address: State Stormwater Management Systems Permit No. SW8 030107 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Hinton Oaks Townhomes Application Date: Receiving Stream/River Basin: Stream Index Number: Classification of Water Body: Drainage Area, acres: Onsite, sq. ft.: Offsite, sq. ft.: Total Impervious Surfaces, sq. ft.: Pond Depth, feet: TSS removal efficiency: Permanent Pool Elevation, FMSL Permitted Surface Area, sq. ft.: Permitted Storage Volume, cubic ft.: Temporary Storage Elevation, FMSL Controlling Orifice: Permitted Forebay Volume, cubic ft.: SW 8 030107 101 Hinton Avenue, Wilmington New Hanover County Johnny Ivey, Member Manager Park -Hinton, LLC 6229 Richard Bradley Drive Wilmington, NC 28409 April 2, 2003 Bradley Creek 1 Cape Fear CPF24 18-87-24-4-(1) "SC HQW#" 4.03 4.03 0 68,737 6.0 90% (no filter is required) 14.00 5,215@Permanent Pool 5,891 15.00 1.25"0 pipe (drawdown in 2-5 days) 3,392 3 State Stormwater Management Systems Permit No. SW8 030107 II. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. Decorative spray fountains will not be allowed in the stormwater treatment system. 6. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. At least 30 days prior to the sale or lease of any portion of the property, the permittee shall notify DWQ and provide the name, mailing address and phone number of the purchaser or leasee. An access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property. 4 State Stormwater Management Systems Permit No. SW8 030107 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. If the proposed BUA exceeds the amount permitted under this permit, a modification to the permit must be submitted and approved prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. 13. The permittee must maintain compliance with the proposed built -upon area and ensure that the runoff from all the built -upon is directed into the permitted system. 14. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 15. The permittee must maintain the current permitted drainage area. No additional runoff from outside of the permitted drainage area boundary may enter the permitted stormwater facilities without first applying for and receiving a permit modification. Ill. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. E ` State Stormwater Management Systems Permit No. SW8 030107 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. Permit issued this the 2nd day of June, 2003. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION C'X .IG— Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission 1.1 StATE State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson Jonathan B. Howes, Secretary Regional Manager December 1, 1994 Mr. Wyatt E. Blanchard, P.E. New Hanover County Engineering Department 414 Chestnut Street Wilmington, North Carolina 28401 - 4045 Subject: CERTIFICATION OF COMPLIANCE with Stormwater Regulations Stormwater Project No. SW8 941108 Hinton / Wrightsville Ditch Maintenance New Hanover County Dear Mr. Blanchard: The Wilmington Regional Office received a Sedimentation and Erosion Control Plan for Hinton / Wrightsville Ditch Maintenance on November 16, 1994. Based on our review of the project plans and specifications, we have determined that the total built upon area is less than 1 acre and therefore complies with the Stormwater Regulations set forth in Title 15A NCAC 2H.1003(a)(1). No additional impervious surfaces (sidewalks, outbuildings, etc.) shall be built other than that which is shown on the plans submitted and approved by this Office. Any modification of the plans submitted to this Office and approved by this Office or further development of this contiguous project will require an additional Stormwater Submittal/Modification and approval prior to initiation of construction, regardless of the fact that such modification may be less than one acre. Modifications include but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces, addition of built -upon surfaces, redesign or further subdivision of the project area as shown on the approved plans. This Certification shall be effective from the date of issuance until rescinded. The project shall be constructed and maintained in accordance with the plans and specifications approved by the Wilmington Regional Office. This Certification does not supersede any other permit or approval. The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project. This could include the Division of Coastal Management under CAMA requirements, the Division of Environmental Management under Wetland 401 Water Quality Certification and/or a Dredge and Fill Permit and/or a Sewer Extension/Collection Permit, U.S. Army Corps of Engineers 404 Wetland Permit, NPDES stormwater permit if disturbing five acres or more, local County or Town Agency permits under their local ordinances, or others that may be required. 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 0 Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer Mr. Blanchard December 1, 1994 Stormwater Project No. SW8 941108 If you have any questions concerning this matter, please call Mr. Greg Stutts or myself at (910) 395-3900. Sincerely, Dave Adkins Water Quality Supervisor DA/ges: S:IWQSISTORMWAnCERTIFIC1941108.DEC cc: Mr. Sky Conklin, New Hanover County Inspections Beth Easley, New Hanover County Bradley Bennett Greg Stuffs Wilmington Regional Office Centml Files State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager November 3, 1994 Mr. Jim Craig, P.E. New Hanover County Engineering 414 Chestnut Street Wilmington, North Carolina 28401 Subject: REQUEST FOR STORMWATER SURNUTTAL Hinton/Wrightsville Ditch Maintenance Stormwater Project No. 56v? .New Hanover County Dear Mr. Craig: On November 2, 1994, the Wilmington Regional Office received a Sedimentation and Erosion Control Plan for the Hinton/Wrightsville Ditch Maintenance. As of this date, however, we have not received a Stormwater Submittal regarding stormwater management for the subject project. Please be aware that any site which requires either a Sedimentation and Erosion Control Plan permit and/or a CAMA major permit will also require a Certification of Compliance with Stormwater Regulations by the Division of Environmental Management. Any construction on the subject site, prior to receipt of the required Certification, will constitute a violation of 15A NCAC 2H.1003 and will result in appropriate enforcement action by this Office. A Stormwater Submittal or information regarding the status of this project and expected submittal date must be received by this Office no later than December 3, 1994, or the subject project file will be closed and construction may experience a subsequent delay. If you have any questions, please call me at (910)-395-3900. Sincerely, Ms. Linda Lewis Environmental Engineer DA/arl: S:1WQSISTORMWATISTORMSUBIHINTON.NOV cc: Bradley Bennett (2) Linda Lewis Sky Conklin, New Hanover County Central Files 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 •Telephone 910-395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land -disturbing activity on one or more contiguous acres as covecpd,bylthe Act before this form and an acceptable erosion and sedimentation control plan have beeh`comipiete;d,+ ci�approved by the Land Quality Section, N.C. Department of Environment, Health, and NatuW;Resources. (Pleasetype or print and, if question is not applicable, place NIA in the blank.) y :� Part A. NOV 1994 1. Project Name HJ.rit n U, 2. Location of land -disturbing activity: County New Hanover;,City or Township N/A and Highway / Street 3. Approximate date land -disturbing activity will be commenced: October/November 4. Purpose of development (residential, commercial, industrial, etc.) Drainage ditch maintenance 5. Approximate acreage of land to be disturbed or uncovered : 2 acres 6. Has an erosion and sedimentation control plan been tiled ?Yes No xrM�-P,r,)bN 7. Person to contact should sediment control issues arise during land -disturbing activity. b � Name Jim Craia/Wyatt Blanchard Telephone (910) 341-7139 8. Landowner (s) of Record ( Use blank page to list additional owners.): u D New Hanover County c/o Tax Administrator NOV n 2 19 Name (s) 320 Chestnut Street Current Mailing Address D.EM Plto Current Street Address 5�Ug 44110 S Wilmington, NC 28401 City State Zip 'City State Zip 9. Recorded in Deed Book No.,- N_/A Page No. N/A Part B. 1. Person (s) or firms (s) who are financially responsible for this land -disturbing activity (Use the blank page to list additional persons or firms): New:'Hano_ver_ County Engineering Name of Person (s)or Firm (s) 414 Chestnut Street Mailing Address Wilmington, NC 28401 C ity State Telephone (910) 341-73_39 Zip Street Address City State Zip Telephone 2. (a) If the Financially Responsible Party is not a resident of North Carolina give name and street address of a North Carolina Agent. Name Mailing Address City State Zip Telephone Street Address City Telephone State Zip (b) If the Financially Responsible Party is a Partnership give the name and street address of each General Partner ( Use blank page to list additional partners). If the Financially Responsible Party is a Corporation give name and sheet address of the 'Registered Agent. Name Mailing Address City Street Address State Zip City State Zip Telephone Telephone f ' The above information is true and correct to the best of my knowledge and belief and was provided by me undertpath. ( This farm must be signed by the financially responsible person if an individual or his attorney -in - fact or if not an ih'dividual by an officer, director, partner, or registered agent with authority to execute instru- ments fdr the finanacially responsible person ). I agree to provide corrected information should there be any change in the information provided herein. Wyatt E. Blanchara, P.E. Tvnp nr nrint name County Engineer Title or Authority I, CAL r3E(c'rV ArZ 5C14Ufr ��. ^, a Notary Public of the County of State of North Carolina, hereby certify that W,�A-r-r G� b appeared personally before me this day and being duly sworn acknowledged that the above form was exe- cuted by him. a� Witness my hand and notarial seal, this �7 day of OC vaBe!F:2 ig Seal Notary My commission expires HINTON/WRIGHTSVILLE DRAINAGE PROJECT EROSION CONTROL NARRATIVE Due to the public health concerns, the County is performing ditch maintenance to alleviate standwater in the area contained by Michelle Drive, Wrightsville Avenue and Hinton Avenue. The work will be done by the County Health Department crew. The project consists of cleaning 2,325 linear feet of existing ditch containing the work within a 30 foot area. Ken Sholar, Vector Control, has received Corps of Engineers approval and a state grant for the project. The project will denude no more than 2 acres. The erosion control measures shown on the plan are sumps and immediate seeding. The slopes will for the most part 1.5 to 1 to 1:1 and flatter where possible. All excavated material will be left on site. The specifications for erosion control and seed are attached. STURMWATER p ECEC Uk n U NOV 0 2 1994 DEM )?ROr-- NOV NOV 1 1"4 i : M '1 1 1 J rn 1 O 00 •1 BUR 7 ••`` �1S a � �1� n cn t- 2 cn rrl to 9LF X co ZK i VA \\���1 �l(1 1.\/."((/ N •I 1 � `� �/� \. �,�' , t� /.�\ J � i � O , m 0 N 170,00011 ?0,000 N 171,000 -I uv oc vn>e - Wv. OF unco- _ 'REPARED BY PREPARED FOR I_Z_'^ HICAGO AERIAL COUNTYNOVER TOPOGRAPHIC MAP SURVEY DATE OF MAP _ �975 m oz NORT14 CAROLI< ^ DATE OF REVISION ��O '2140 WOLF RD. BOARD OF COu;-W HANOVER COUNTY, N. C• DATE OF AERIAL PHOTO FEB. 0zx DESPLAINES ILL. C0MMISS10NEf 60018 WILMINGTON, N. MAP NUMBER 56 - 03 200 0 200FEET 284C SCALE I = 200 CON. INT. 2 FEET Section 01560 Erosion and Sedimentation Control 1.01 General: The contractor shall be responsible for erosion and sedimentation control within the construction limits; for prevention of sediment laden runoff leaving the construction limits or entering ditches, streams or water impoundments; and for implementation of necessary erosion and sedimentation control measures to meet the requirements of the County Engineer and/or North Carolina Department of Environment, Health, and Natural Resources. The contractor shall also be responsible for all damages or fines covered by erosion or sediment laden runoff in the execution of his contract. 1.02 Construction Sequence: while the use of erosion and sedimentation control devices is especially important on areas of steep topography, easily erodible soils and sites in close proximity to water courses throughout the construction period, the control measures should be installed prior to the commencement of land clearing and shall be fully maintained and periodically inspected until final restoration and stabilization is completed. Unrestored cleared areas shall be kept to a minimum and disturbed areas ahead of construction shall only be accomplished on those segments for the shortest practical, -distance as required for continual progress. Final restoration will not be delayed until completion of the project but will_ be accomplished in phases as the work proceeds. Under no- circumstances will any areas be left denuded for more than (30) thirty calendar days without some form of stabilization until final restoration is complete. 1.03 Sedimentation: Control Measures: The following are some of the sediment control devices or measures that may be required to prevent sedimentation of streams, water courses, other water courses or drainage structures: 1. 2. 3. 4. 5. 6. 7. Earth berms and/or diversion and intercept ditches. Sediment traps Filter berms Filter inlets Silt fences - not to be perpendicular to flow. Check dams gravel filter Gravel construction exits placed in streams or ditches 01560.1 STORIAA17AITER111 p EC EL VE D Nl0v 0 2 1994 D E M �x�o� # Sw8 Q 110 $� 1.03.1 Erosion Control Measures: Some of the soil erosion control measures which may be required in this contract are: 1. Earth slope protection 2. Diagonal water break diversion berms 3. Diversion channels 4. Preservation of existing vegetation 5. Storm inlet protection 6. Stream crossings 7. Energy dissapators 8. Matting of re -seeded areas 1.03.2 Detail Drawing: Examples of sedimentation and erosion control details are shown in these plans for installation at locations designated in the plans or as otherwise required by the regulating agency, or the owner as work proceeeds. 1.04 Stream Protection: where construction activities are necessary in close proximity to streams, and other waterways, they shall be performed in a manner that does not contribute to degradation of or blockage of the stream -flow. In order to prevent possible degradation or blockages, the contractor shall be required to: 1. Keep all construction debris, excavated materials, brush, rocks, refuse and topsoil as far from these waterways as• possible. Restrict machinery operation or stream crossings in waterways to that extent necessary for construction of utilities crossings. 2. If construction work areas are necessary in a waterway, they shall be protected as indicated on the plans. 3. If temporary roadways are essential for the construction activities, they shall be constructed of soils which are not highly erodible materials and must not span over more than one-half way across and water course or wetland area at any one time unless otherwise approved by the Engineer. These temporary roadways shall be entirely removed as soon as their requirement is met. Work in some of these areas shall follow the Corps of Engineers or LAMA permit or plan requirements which shall be applicable. 1.05 Construction Access: The travel of equipment to and from the construction areas shall be minimized not only to protect areas that will not be denuded, but also to prevent the spreading of sediment within and outside of the construction areas. Therefore, special construction equipment travel corridors will be established for this use and instructions shall be' issued for their use. Use of these corridors must be 01560.2 r fully enforced. Other non -essential traffic will be restricted or discouraged. Indiscriminate and convenience traffic shall not be allowed. 1.06 Stockpile/Barrow Areas: The contractor shall be responsible for selecting, obtaining and maintaining stockpile or barrow areas which he may require to complete the contract. He is also required to design and incorporate all necessary sediment and erosion controls measures necessary to prevent erosion and contribution of sediment to adjacent areas. The contractor i,s responsible to obtain all necessary permits or approvals for barrow or spoil areas outside the construction limits. 1.07 Disposal of Excess Water From Excavations: The contractor shall practice management of excess water pumped from excavation to reduce the production and spreading of sediment. Pumped water shall be discharged onto stabilized surfaces and allowed to filter through by existing vegetation if possible,. otherwise, additional control measures may be necessary. If ditches are required to remove pumped water from construction excavations, they shall be given the same consideration as any other man-made waterway and they shall be stabilized as to not degrade and produce sediment. 1.08 Excavation and Backfill: Excavation shall be closely controlled and all the material removed from the excavation shall be selectively stockpiled in areas where a minimum of sediment 'will be generated and where other damage will ndt result from the piled material. Drainageways shall be protected at all times and the placement of material in drainageways for convenience shall not be allowed. Backfilling operations shall be performed in such a manner that remaining trees are not damaged. Temporary repaving shall be placed promptly after backfill operations are completed in improved areas. 1.09 Final Grading and Seeding: Finish grading, topsoiling, seeding and/or sodding shall be performed as specified in Section 02900 Landscaping, of these specifications. After the construction phase is complete, permanent vegetation of the areas, that have been disturbed, shall be re-established as rapidly as possible. If the completion of the construction activities do not coincide with a season in which permanent vegetation can be generated, an interim or temporary program is required. This shall include soil conditioners and mulching as necessary for soil stabilization. In any case, sediment and erosion controls shall be installed promptly and their maintenance assured. 1.10 Approval: The approved Erosion Control Plan will beprovided by the engineer. Any standard conditions relating to soil 01560.3 erosion and sediment control issued to the contractor as a part of any permits shall be available at the job site at all times. 1.12 Under the provisions of this contract, no separate payment will be made for any labor or materials necessary to provide for erosion and sediment control during the construction project. 01560.4 Section 02900 Landscaping Part I General: The contractor shall be responsible for providing all labor, materials, tools, equipment, topsoil, fertilizer, lime and seed necessary for restoration and stabilization of areas disturbed under this contract. All areas disturbed, whether in street right-of-ways, permanent easements or temporary construction easements shall be restored by the contractor upon completion of backfilling. Within temporary construction easements, the contractor may be required to restore original structures, decorative vegetation, grass seed and shrubbery removed to as near the original condition as possible and to the approval of the engineer. Part 2 Submittals: The contractor shall submit the names and composition of the fertilizers, sod and seed mixtures and mulch type to the Engineer prior to initiation of restoration activities for review and approval. Part 3 Materials: The contractor shall use the following materials on the project unless otherwise approved by the engineer. 02900.1 Part 3.1 Topsoil: Top soil shall be a natural, fertile, friable, productive soil from naturally well drained areas in the immediate vicinity with a PH between 5 and 9. It shall not contain any substances that may be harmful to grass growth. Topsoil which has been stockpiled from trenching or excavations may be used provided it meets the above requirements. Topsoil delivered to the site in a frozen or muddy condition shall be rejected. Part 3.2 Seed: The seed shall have 97% purity and 90% germination guarantee. All seed must meet the requirements of the North Carolina Department of Agriculture. Bags shall be labeled to describe the composition, purity, germination, and the presence of restrictive or prohibited agents. Damp or moldy seed will be rejected. The contractor shall be required to either seed or sod disturbed areas as to provide a grass stand equivalent to that existing prior to the disturbing activities without additional compensation. Part 3.3 Fertilizers: Fertilizer shall be 10-10-10 or equivalent of uniform, free -flowing granules. The fertilizer shall be delivered to the site in the original containers labeled with contents and producer's name. The Engineer may require additional or a different fertilizer based on seed performance or soil test. Part 3.4 Lime: The dolomitic lime shall consist of ground 02900.2 agriculture limestone containing not less than 85% of combined calcium and magnesium carbonates with 60% passing a #60 mesh sieve and 95% passing a #10 mesh sieve. Part 3.5 Mulch: Mulch shall consist of small grain straw or other acceptable material, and shall have been approved by the Engineer before being used. All mulch shall be reasonably free from mature seedbearing stalks, roots, or bulblets of Johnson Grass, Nutgrass, Sandbur, Wild Garlic, Wild Onion, Bermuda Grass, Crotalaria, and Witchweed, and free from an excessive amount of restricted noxious weeds as defined by the North Carolina Board of Agriculture at the time of use of the mulch, and also there shall be compliance with all applicable State and Federal domestic plant quarantines. Straw mulch that is matted or lumpy shall be loosened and separated before being used. Part 3.6 Jute Netting and Staples: Jute mat shall be cloth of a uniform plain weave of undyed and unbleached single jute yard, 48 inch in width plus or minus 1 inch and weighing an average of 1.2 pounds per linear yard of cloth with a tolerance of plus or minus five percent (5%), with approximately 78 warp ends per width of cloth and 41 weft ends per linear yard of cloth. The yard shall be of a loosely twisted construction having an average twist of not less than 1.6 turns per inch and shall not vary in thickness by more than one-half of its normal diameter. 02900.3 Staples for anchoring soil stabilization matting shall be made of 12 to 20 inch lengths of No. 8 plain wire. Part 3.7 Asphalt Binding Material: The asphalt binding material for anchoring mulch shall consist of emulsified asphalt per North Carolina Department of Transportation specifications. Part 3.8 Water: Water shall be potable, free of contents which could retard grass growth. Part 4 Preparation of Disturbed Areas Part 4.1 Uncultivated Areas: All uncultivated areas that are disturbed by the pipe laying operation shall be restored to good condition with similar materials as original. Restoration includes, but is not limited to, asphalt, paint stripes, concrete, curbs, culvert pipe, mailboxes and signs. Areas shall be cleaned and surplus materials removed. Natural areas shall be graded to final grade, limed, fertilized, seeded and mulched as required and as described in 02900 Part 4.2 Cultivated Areas, except no topsoil application is required. Wetland areas are to be restored with original vegetation or with plants of same species as specified by the regulating authority. Topsoil will not be required on road 02900.4 shoulder adjacent to uncultivated areas except .in those areas where suitable erosion ground cover is unattainable through seeding. Part 4.2 Cultivated Areas: A. General• Existing seeded and/or planted areas disturbed by construction shall be dressed with topsoil, fertilized and seeded. Furnish and apply soil conditioners and seed as specified. Excess stone from construction activities left on private property or rights -of -way shall be removed by the Contractor, at his expense, to prevent damage to maintenance equipment and operations. B. T 2soil: After approval of rough grading, the Contractor shall place the topsoil on all cultivated areas damaged by his operations, except for road shoulders adjacent to undeveloped and uncultivated areas. Topsoil shall be at least 3 inches deep. 02900.5 All topsoil from stripping which is not used at the job site shall be removed from the site and deposited as requested by Owner. C. Soil Conditioners: Lime and fertilizer shall be spread and thoroughly worked into the top 4 inches of soil at the rates of 3,000 lbs/acre and 1,000 lbs/acre, respectively. Then the soil shall be raked until the surface is finely pulverized and smooth and shall be compacted with rollers, weighing not over 100 pounds per linear foot of tread, to an even surface conforming to the prescribed lines and grades. D. Seedin Seeding shall be done when weather conditions are approved as suitable. If there is a delay in seeding, during which weeds grow or soil is washed out, the Contractor shall remove the weeds or replace the soil before sowing the seed, without additional compensation. Immediately before seeding is started, the soil shall be lightly raked. Seed shall be sown during the following dates at the following pound per acre rates. On a calm day and preferably by machine, but if by hand, only by experienced workmen. Hydroseeding may be 02900.6 permitted. 1) For soils with good moisture retention from February 15 to April 30 or September 1 to October 31. Seed with 80 lbs. tall Fescue, 50 lbs. unhulled Common Bermuda Grass, 40 lbs. Kobe Lespedeza. 2) For soils with poor moisture retention from April 1 - July 15, seed with 50 lbs. unhulled Common Bermuda Grass, 5 lbs. Centipede Grass and 10 lbs. German Millet. 3) Temporarily seeding all other times (to be reseeded at the first available date listed in 1 or 2 above), 120 lbs. rye (grain), 50 lbs. Kobe Lespedeza. Seed shall be raked lightly into the soil to a depth of 1/4 inch and rolled with a roller weighing not more than 100 pounds per linear foot of tread. Wherever poor germination occurs in areas larger than three (3) square feet, the Contractor shall reseed, roll, and water as necessary to obtain proper germination. The Contractor shall water, weed, cut and otherwise maintain and protect seeded areas as necessary to produce a dense, healthy 02900.7 growth of perennial lawn grass. E. Mulch: All seeded areas shall be mulched unless otherwise indicated in the Special Provisions or directed by the Engineer. Grain straw may be used as mulch at any time of the year. if permission to use material other than grain straw is requested by the Contractor and the use of such material is approved by the Engineer, the seasonal limitations, the methods and rates of application, the type of binding material, or other conditions governing the use of such material will be established by the Engineer at the time of approval. Mulch shall be applied within 36 hours after the completion of seeding unless otherwise permitted by the Engineer. Care shall be exercised to prevent displacement of soil or seed, or other damage to the seeded area during the mulching operations. Mulch shall be uniformly spread by hand or by approved mechanical spreaders or blowers which will provide an acceptable application. An acceptable application will be that which will allow some sunlight to penetrate and air to circulate, but also partially shade the ground, reduce erosion, and conserve soil moisture. 02900.8 Mulch rate shall be 2 tons per acre. When there are seasonal limitations on seeding or when other weather or erosion conditions make it desirable to mulch in advance of seeding, the Engineer may direct that mulch be applied after the application and incorporation of limestone into the seedbed, and the fertilizer and seed then applied later through the mulch in proper season or under more favorable weather conditions. Mulch shall be held in place by applying a sufficient amount of asphalt or other approved binding material to assure that the mulch is properly held in place. The rate and method of application of binding material shall meet the approval of the Engineer. Where the binding material is not applied directly with the mulch, it shall be applied immediately following the mulch application. During the application of asphalt binding material, or other approved binding materials which may cause damage, adequate precautions shall be taken to prevent damage to traffic, structures, guardrails, traffic control devices, or any other appurtenances. The Contractor shall either provide adequate covering or change methods of application as required to avoid such damage. When such damage occurs, the Contractor shall repair it, including any cleaning that may be necessary. 02900.9 The Contractor shall take sufficient precautions to prevent mulch from entering drainage structures through displacement by wind, water, or other causes and shall promptly remove any blockage to drainage facilities which may occur. Part 4.3 Jute Netting A., Site Preparation: Jute netting shall be required on all slopes greater than 2 to 1 slope, and wherever specified on drawings. Shape and grade the waterway, channel, ditch, or area to be protected as required by the drawings and specifications. Remove rocks, clods over 1-1/2 inches in diameter, sticks and other material that will prevent contact of the matting with the soil surface. B: Lime, Fertilizer and Seed: Lime, fertilize and seed in accordance with the applicable seeding standard (Part 4.2 C&D) except when placing jute -matting one-half of the seed may be applied prior to laying the matting and the remaining seed applied after laying the matting. 02900.10 C. Installing Netting: The Contractor shall start laying the matting from the top of the channel or slope and unroll downgrade so that one edge of the strip coincides with the channel center. Lay a second strip parallel to the first on the other side of the channel and allow at least a 2- inch overlap for jute matting. If one roll of matting does not extend the length of the channel, continue downhill with additional rolls. The Contractor shall secure the matting by burying the top end of jute strips in a trench 4 inches or more deep. Tamp the trench full of soil. Reinforce with a row of staples driven through the jute about 4 inches downhill from the trench. These staples should be about 10 inches apart. Then staple the overlap in the channel center. These staples should be 3 to 4 feet apart. The outside edges may be stapled similarly at any time after the center has been stapled. Closer stapling along the sides is required where concentrated water may flow into the channel. Succeeding strips of matting, farther down the channel or slope, are secured in a similar manner. Strips of matting on the swale slopes should be laid and secured as above to a height of 3 feet above base of swale. 02900.11 Where one roll of jute matting ends and another roll begins, the end of the top strip overlaps the trench where the upper end of the lower strip is buried. Make the overlap at least 4 inches and staple securely. D. ^ Erosion Stops: At any point, jute matting may be folded for burying in slit trenches and secured as were the upper ends. This checks water flow and erosion that may begin under the matting. It also gives improved tie -down. The procedure is recommended on the steeper slopes of sandy soil and gentler slopes subject to seepage. Spacings vary from 25 to 100 feet as required by the Engineer. E. Diversions: Where diversions outlet into the waterway, the outlet should be protected with matting used in the same manner as in the main channel. The matting for the outlet is laid first so that matting in the main channel will overlap the outlet strip. F. Matting Soil Contact_ The Contractor shall assure that between matting and soil is obtained by rolling after laying, stapling and seeding are 02900.12 complete. Perfect contact is vital to keep water flow over, not under, the matting. G. Inspection: After job completion, the Contractor shall make sure the matting is . in contact with the soil at all places and that critical areas are securely stapled down. Part 5 Inspection and Acceptance: At the beginning of the next planting season after that in which the permanent grass crop is sown, the seeded areas will be inspected. Any section not showing dense, vigorous growth at that time shall be promptly reseeded by the Contractor at his own expense. Restoration shall be acceptable when the grass has grown at least 1" high with 85% coverage; provided that no bare spots larger than 10 square feet exist. 02900.13