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HomeMy WebLinkAboutSW8021201_CURRENT PERMIT_20030505STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�6'/Iv DOC TYPE CURRENT PERMIT C ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD r �oF \NArFRQ Michael F. Easley, Governor William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources G Alan W. Klimek, P.E. Director Division of Water Quality May 5, 2003 Mr. William Dansey, President Quality Built Construction, Inc. 8 Courtney Square, Apt. 8 Wilmington, NC 27858 Subject: Permit No. SW8 021201 The Marshes at River's Edge High Density Stormwater Project New Hanover County Dear Mr. Dansey: The Wilmington Regional Office received a complete Stormwater Management Permit Application for The Marshes at River's Edge on April 29, 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 15A NCAC 2H.1000. We are forwarding Permit No. SW8 021201 dated May 5, 2003, for the construction of The Marshes at River's Edge. This permit shall be effective from the date of issuance until May 5, 2013, and shall be subject to the conditions and Iimitations 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 stormwater 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 an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and; filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 2761 I-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 RSS/arl: S:IWQSISTORMWATIPERMIT1021201.may03 cc: James Fentress, P.E. Tony Roberts. New Hanover County Building Inspections Beth E. Wetherill, New Hanover County Engineering Linda Lewis Wilmington Regional Office Central Files N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax Customer Service 1 800 623-7748 _ A 14CDENR State Stormxvater Management Systems ` Permit No. SW8 021201 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONNIENT 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 Mr. William Dansey The Marshes at River's Edge New Hanover County FOR THE construction, operation and maintenance of 5 wet detention ponds 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 May 5, 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 controls, numbered as Ponds 1-5, have been designed to handle the runoff from 52,462 ft2; 211,841 ft2; 88,844 ft2; 48,500 ft2; and 31,472 ft2; respectively, 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. 2 State Stormwater Management Systems Permit No. SW8 021201 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: The Marshes at River's Edge Permit Number: SW8 021201 Location: New Hanover County Applicant: Mr. William Dansey, President Mailing Address: Quality Built Construction, Inc. 8 Courtney Square, Apt. 8 Wilmington, NC 27858 Application Date.: April 29, 2003 Receiving Stream/River Basin/Index #: Barnards Creek 1 Cape Fear I CPF17 18-80 Classification of Water Body: "C Sw" Pond Number: I 2 3 Drainage Area, acres: 1.84 8.59 3.27 Onsite, ft2: 1.84 8.59 3.27 Offsite, ft2: 0 0 0 Total Impervious Surfaces, ft2: 52,462 211,841 88,844 Pond Depth, feet: 6.0 5.5 6.0 OO TSS removal efficiency: 90% 90% 85% Permanent Pool Elevation, FMSL: 5.80 6.00 5 ©.Permitted Surface Area, ft2: 3,016 13,591 4,033 Permitted Storage Volume, ft3: 4,329 17,931 7,416 Temporary Storage Elevation, FMSL: 7.00 7.20 7.5 Oa Controlling Orifice: 1" � pipe 2" � pipe 1" � pipe Permitted Forebay Volume, ft3: 1,412 8,234 2,222 OA vegetated filter is required where the TSS efficiency is 85%. OO This is the surface are to be provided at the permanent pool elevation. Oa The orifice must be sized to drawdown the l" storage volume in 2-5 days. 3 State Stormwater Management Systems' F Pen -nit. No. SW8 021201 DI`TISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: The Marshes at River's Edge Permit Number: SW8 021201 Location: New Hanover County Applicant: Mr. William Dansey, President Mailing Address: Quality Built Construction, Inc. 8 Courtney Square, Apt. 8 Wilmington, NC 27858 Application Date: April 29, 2003 Receiving Stream/River Basin/index #: Barnards Creels / Cape Fear / CPF17 18-80 Classification of Water Body: "C Sw" Pond Number: 4 5 Drainage Area, acres: 1.93 1.05 Onsite, ft2: 1.93 1.05 Offsite, ft2: 0 0 Total Impervious Surfaces, ft2: 48,500 31,472 Pond Depth, feet: 4.50 4.00 TTSS removal efficiency: 90% 90% Permanent Pool Elevation, FMSL: 7.00 6.00 zePermitted Surface Area, ft2: 4,233 3,105 Permitted Storage Volume, ft3: 4,912 2,914 Temporary Storage Elevation, FMSL: 8.0 6.00 OControlling Orifice: 1" pipe 0.75" � pipe Permitted Forebay Volume, ft3: 1,391 909 OA vegetated filter is required where the TSS efficiency is 85%. OO This is the surface are to be provided at the permanent pool elevation. OO The orifice must be sized to drawdown the 1" storage volume in 2-5 days. 4 State Stormwater Management Systems Permit No. SWS 021201 IL SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in it's entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 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. 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 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. 5 State Stormwater Management Systems T Permit No. SW8 021201 10. 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. 11. 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. 12. 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 stonmwater facilities shall be granted in favor of permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property. 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. III. GENERAL CONDITIONS 1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit transfer request must be submitted to the Division of Water Quality accompanied by an application fee, 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. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which maybe 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. 9 State StorniNvater Mananement Systcros Permit No. SW8 021201 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 5th day of May, 2003. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission State Stormy}pater Management Systcross r Pen -nit No. SWS 021201 The Marshes at River's Edge Stormwater Permit No. SW8 021201 New Hanover County Designer's Certification 1, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/weekly/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 E:j 1 State Stormwater Management Systems Permit No. SW8 021201 Certification Requirements: 1. The drainage area to the system contains approximately the penxtitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. 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. 6. Trash rack is provided on the outlet/bypass structure. 7. All slopes are grassed with permanent vegetation. 8. Vegetated slopes are no steeper than 3:1. 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 overall dimensions of the system, as shown on the approved plan, are provided NCDENR-DWQ Regional Office Tony Roberts, New Hanover County Building Inspections 9 2m 011'ic dfZ T D"ite Rvceiv(�d. flee jlzfld:�: Pei -m Number 420it Xy . � : . 7 'CZ (7- 01 Sfatc of N.afth-Ciircilimt Delmi-tinent of Environment.and NaWl',-11 ReSOUrCOS DIVIsI671 orAlvatc'r Q6,11ity S'rORMWATE.-F-', MAN A ct�4 r.-NTA) E RMITA P P LTC ATT ON FORM This rlll may be l')h0tocofficil-For original id1(; , j,'('TNr .AL iz -INF M01"ATION ,. A'p )lic'mils Ivilir (spocily (Im nz-ioic of ow.. cocpor.inon, 111dIVICILK11, etc. who owns the III-0ject): Q1.1,11ity Md].0 Construction, 'Enc.-' :1 1'111)t OW1101-1sif."Ti ill[:,, OfTickd's-wmw ,md (iL](-- vespol Is i h1c for 1*1-lcilicy and col-llplkillcc-): William mim;cy, M;iilirlp -es, pei'sm listed in item) 2.,ibovc-, 3 Addi s Foi 8 Courtney 5q u-a r c-.,-._.A.P- t ck,Y Wi Imillp, toil t -I (C'. NC 27858 Telephone NUInber. •756-8702 PrdjO(:t Nalll(! (subdivision, f'-161AY, or cst;iblishim, CC1l!ii'11!1lt With IWOJUCt TIR1110 on PkI11%, and rmiritcnm�ce agi-N'I�mmts, 10: specifications, IC(teis, OpCt -ZIL' im-i The Marshes at River s g U)mtiml of Project ('s,11-cTI ;)(Ich,oss): Intersection of Indeperidenc(I -and.' toil "City:- New Hanover I. ec 11 o I v: In 1) 1 -oj o I (J'ro I I I I) 11"(!,; 1 "nnjcsi irI c 1-r; 1: t i o 11.): Uq42.1 N from US 471./NC131 iii t:cr s 61c tj.o'n j- Lo . Inc] pendenc r- Blvd. Left on Independence to River. Ro-rid, ...pro )v-rLy_On NJ' . .... ... ........ 77�56'7-'N 7.1 1[ (ifpi-0ject R. colitact pLu-so1i \Vlm mil -ml.smli- (juusLio11!;;11)uu1 the Nantc;anic s Fe n L r c s s Jr.,1 E 0 7 7 5 J, 910 Tcl�phiJjie Numbe 815 1. PERMIT INFORMATION: I . specily Whod)("i j)1,ojc'cL is 0m): X..--New ��I2enew;tl __—___Modification 1-61-111 '3,%V1J- 10 1 Vcr-,;imi :1-99 P:11,g I of 11, if this :11)1)HUId011 is 1)61112, SL]hillitlfd as OM 1'(NLIR 01',i,i-immal 6t- modification to.,in eXisling pf.1nnit. list tic ........ ..... i'-s I )(,Tify the Iype of pT,oj(!(,1 Low IDensily X High 1>,n%ity \cdevelo1j. --cenen-11 pennit Other Additional Project RoqL61-011101)[S (check iCAMA Major 104/401 PermitNIMES Stoi-i-nw,-iter _X seclhnont;�Iion/F. �ionconti,ol 1,ni'61-111.-Iliori oil I-equil-ed state penni[s C:111 he 01DInined by conmr.tinp the Customer' Service Center at I -P)77-623-67,18. 1 1.1 T, iZ.O.) i CT i N FO R N4 A'm 0 N L.;, fil�tne S[),-tCQ j)j-GVi(Ie(j below, suntmnrizc 1101,V stonllwatcr will be t,t-cnted. Also attach zi doubled nnn,ntive (one to two pages) desCcil)ing, stoniiw;itu 111.1m-1gement [bi- the project Scormwater will be collected in Drop inlets and Catch Basins, and..conveyed to one of 5 Wet Detention Ponds for.treatment and release. Cape Fear.. to IN! River I)nsin. S1011.111W111WI, r'mncfff, I'l-mil this project drains Tmil Pmj(cr ATTW 55.11rtcres 1rO ect Btiilt.pon Are- I18 5 r Coipleto 1)o lolloViik illf'ol,11mLion for each d 1'rri ),ig c au`un. Htieie nic more ilzn 14vo di;Olzige wrens in the )I-qjecl, 'at"Ich nII 'Iddition"11 sJv,m will the inf'on-11,-Ilion, '01, omch r11.(,m pi-ovidecl in the swno format as helow. Bnsin lnfonnxion ]Di'iiinagq At-r_,;i I Ai-czi 2 Receiving Stiv:iin Mmir-, Barnard's Creek Barnard's Creek Receivillf", sti-omn Glass C SW C SW I .84 AC 8.59 AC Rkistihg4nipci'vious' Aj,t!n 0 0 PT-01)OSOd I III PcI'Vi(.)Lls'A 1-(,;1 1.21 AC 4.86 AC T):1iT,1,j)(2T-Vio11s* Aiva (toml) 63.8% 56.6% 111Ij)(,'1'VtOLI%* SUiT-licx, Ai-(,-;i I)niinzige Area I 11-ain,-ige Area 2 On.-sile Buildinils 23 947 SF 93,489'SF .On. -site Streets 29,007 SF Un site Pziddng 26,105 SF 74,779 SF,,-, Uri site Sidew-.ilks. 2 410 1.4,566 SF Otlim- on -site 0, fl'-siw 52,462 SF 211,841 SF jjlq)l'rvior is is (11411mrl "I!; 011� built including;; but not'limiled ta, buildings. I-arlds, sielviv;ilks, VM'.11I.Sw U- 10 1 VCT"sIoll 3,91) 11agc 2 ol',I. "= 12. ,.'II'this application is hcinf; subrllittcd as tfle resL:It of tr r'rnew;:l 6r rnodil'ication to nn existing permit, list the i, ld-its j.Mle date if known .' :..• . ''' �'CXISIILi�? pc`1'illlr nL1111f)el' ( }, spocil'y the tYpe of project (check one): 1-ow I)ensily __.X —High Density Redevclrip --General Permit --Other is 1. %� Cfditional Project Regc:irements (checl: applicahlc)laliis),: , l CAMA Majcn' X_._SL:dimentatiL}n/l rnsian Control 104/401 Permit _NPI]hS Stormwaler lrifornlntion on required slrite permits can he abtainecl by ront,lrting the CLrstorner Service Center nt tjl }I '1-877-623-fi748. t iIII.. ! fROjLC`I' INFORMATI0N Li In the. space Irovided belerw, suminarize how Stol,MWrater will he treated. Also attach n detniled narrative (cane to Iwo pales) descrihing, Stormwnter inamige.ment for the project . I' Stormwater will be collected in Drop inlets and Catch Basins, and conveyed to one of 5 Wet Detention fonds for -treatment and release. - --- -- -- - - - -- -- - - ------ ------_ 2. Slormwater runolf 1•rr)irr It project drains to 111(. _ Cape Fear River basin. 3. Tottil Project llrc:a`. _.5 '-11 _ :Icres 11. Projer_t BLiilt Upon Area: 5: How many dr;ririaf{e ;u'cas cloes tfu: project have? ---? --- - - G'.1" Con'Tiete Illo (1111rswinp; i il'orni:ition for each r.lrairlaj;et :iryea. 'If tft4re nre more than Iwo dr.,iinaf;e areas in the j Pitojecl, attach an additiomll sllw"L widl the irlforowfloil for etch ;ircn provided in the some format is below. htlsrn Inforoliitiorl I�trilllaf;eFAlc,i -- 1]I[lrnigQ Ar-mf ,III{&,,IvingSlrc;un Mime Barnard's''Cxe'ek-` Barnard's Creek Receivinfti Sn'ctlrn Class C SW - C S14 lartrinaf;c Arc<' 3.27 AC 1.93 AC Gxistinf; ]nlf)crvinus' Area 0 _ 0 1'ropnsed Inlperviraus`AI'['sl _ 2.04 AC-- - 57. 7% % 111llX'rVi6L1s* Area (lotn[) 62. 4% i1nlpcl'vioLls' Sur!•n(,o Area Drainni c Arca I: Arai 2 On -;Site l,Ltildin}s .36, 943 SF 20,359 SF IOn-site Sti-mis On -site 111arldli ; 46,353 SF 25, 906 SF... On'-siteSidcwall`'' 5,54"8-SF _ 23 F Other an -site; OIT-)ite . i'otnl: SF g44 5 "i'or..il: 48,500 SF * 1mpe:r'vknr-s arcn is dr.rrte.(Nis the buill upon areal inc'lrrdirig bur no! liiirilcd to, buildings, mimk, p,irking me,'is, ' sicir.sa�alks, 1irrivr.! rlr'rlis, efr,. 1 I ormISWU-101 Version 3.99 }I . 1';ti;e 2 n!'.1. 2. II'this npillic.ulion Is hel nj,1 submitted I I(A ;IS OW 1TSL11t.01';I 17MOW:,il 6v modification to an existing permit, list the isting, permit Timill)[21. rend its issue date (i I' knoxn) -o eu (Check 01w): �Spqcify the Io type of' pT Low Oerisily X 1-iit."11 11"risity —C-enlenil Permit Other' d.,, Additinziil llmjecl Requii-einerits (ch(,.ck —CAMA M;ijoi- X ... Conti,ol Pol-mit. NPI)ES Sloi-rnwatct- I Iffornintiall on 1,vqII i I-ed ,mte pen ni 1-s can he obm i z"Id by L:L)rIt',IC1 i ng the Cu slomei- Service Center' at 1-877-623-67,18. IfT., PROJECT INFORMATION 1.;1i In t.110. %P;lc(! pmvidml 1)(1.10w, SI-11111111111ze how stori.nwa((,,rwJ1 be Treated. Also attach ;I detailed narrative (one, lo Iwo p'lges) demxibing- ctol,111w"Ilel, 111,111,lgement fot- the project Stormwater will. he collected in Drol l in1 ets and Catch Basins, and 'conveyed ..!I to oneof...5 Wet Detention Ponds foi-0e treatment and release. - — --------- Ca.Tear River basin. 3, Toml Project AT,c-i' 55.11 IL' i3I-OjVCt Built Uj)OTl Mezi: 18 5, How 111,111Yareas does the project have'?..._ 5: G C, 6 1111) 1 e I v the 1,C) I I owi 1 1p, i I I 10 T. 11) a on f'(.) r e; IC 1) d [-,I i 11 ac', e ;.I I-lu le I-e me more I I m n two drainahc areas in ill e project, ;Imm:h an 'Iddition'll shoot %vith the ink)['11mlion fbi- each -wea provided in the same Forivit. as below. Basin 1111b]-mintion Dminzige Area 2 R Nmuc Barnard's Creek v,.Ceivinp, st)-(nm chls% C SW 1.05 AC INisling Iniperviot.is* Arcti '0.72 Z 9/o, Im13ff%1iOLIs* Arc;, (Iol:il) 68.8% SLIH"ice Au--.i I)ntimige Au,,i 1- IX-,dniigc Area 2 Oil -sit(., Building,% 13,402 SF Wi On -site S: i-ce (s 16, 770 SF oh -site sidew"Ilks -'NO SF Othu.otl-site OIT-Site. 31., 472 SF 11111)VI'vious is (h.-ImM -ts III(, built tiptin alert if)CRAirli" but 1161, hinifed to, buildilm's, marls, p"w](ing ijn-xs, 1�6-m Swu- 10 [ versioll 3,99 7. How was the off -site impervious area listed ahOve del-ived?—_ _ IV. DEED RESTRICTIONS AND PRO`1'ECTIVE COVENANTS The following; italicized cleed restrictions and protective covenants are required to he recorded for all SUbdiviSlOnS, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing; erlch lot number, size and the allowable built -upon area for each lot nizrst be provided as an attachment. 1. The following covenants art, intended to ensure ongoing compliance with state stormwater management permit rimnber' as issued by the Division of Water Quality. These covenants may riot be Changed or deleted tvitboul lire consent of the State.. 2. No more than square feel ofany lot shall be covered by structures or impervious materials. Impervious materials iurhirle asphalt, gravel, Concrete, brick, stone, shall, or similar malerial but do not include wood decking or the haler surface of stvitrrmiiig pools. 3. Sivalrs shall nor be filled ill, piped, or ahered except as rrere:ssaty to provide drivetvay Crossings. 4, l3trill -upon area in excess of the per'milIed amorurt requires a state. stor'rinvater nnrragenrerlt permit [mollification prior to construction. S. All permitted runoff frorrr oulpar•cels or future developmem sha11 be directed into the permitted stornrvvalof-control system, These Connections to the slormrwarer control systcrrl shall be performed ill a manner, that maintains the integrity and per'formiance of the sysrern os permil teal. By your signature beloW, you certify that the recorded deed restrictions and protective covenants for this project Shill] include all the applicable items required above, that the covenants will he binding; on al] parties and persons claiming; rindel• them, that they will run with the land, thug tale 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 stormwater management permit supplement forin(s) listed below mUSt be submitted for each BMP specified ['or this project, Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of I llese forms. Porin SWU-102 Wet Detention Basin SU11111er11ent Form SWU-103 Infiltration Basin Supplement Dorm SWU-104 Low Density Supplement Forth SWU-105 Curb Outlet System Supplement Form SWU-lOG Off -Site System Supplement Dorm SWU-107 Undet'g1'0UT1d infiltration Trench SUpplement Dorm SWU-108 Neuse Riven Basin Supplement Form SWU-109 innovative Best. Management Practice Supplenlew Form SWU-101 Version 3.99 Page 3 of 4 VI, SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed 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 item. • Original and one copy of the stormwater Management Permit Application corm lam` • One copy of the applicable Supplement Form(s) for each BMP — • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including: Development/Project name - Engineer and firm Legend North arrow Scale Revision nuinber & date Mean high water line Dimensioned property/project boundary Location map with named streets or NCSR numbers Original contours, proposed contours, spot elevations, finished floor elevations Details of roads, drainage features, collection systems, and stormwater 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 Vegetaled buffers (where required) V1L AGENT AUTHORIZATION lf'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): Stroud Engineering, P.A. Mailing Address: 102—D Cinema Drive City: Wilmington State: - . NC Zip:---- 28403— Plione:.( 910 ) 815-0775 Fax: ( 910 ) 815-0593 VIIl. APPLICANT'S CERTIFICATION I, (print or type 118111e of per,%11 listed in Coneral Information, ieerir 2) WILLIAM DANSEY certify that the inforillatior r eluded on this permit application form is, to the best of myknowledge, correct and that the project will be coast jed in con lornrance with the approved plans, that the required. deed restrictions and protective covenants will recorded, aathat roposed project complies with the requirements of15A NCAC 21-1,1000_ Date: Form SWU-101 Version 3.99 Page 4 of 4 Pcrn]it No.SGv � D 2 / 2c> (to be pro)+id(-d bvDWQ) State of.Noi-f l,Cal;olii-In „ r ", ,E ,�'•. ` Dcparf.rncttt of I�]]Virorli-]7('nt .i11C1N�i'tclt'al Rcsottrccs _..__. Divisifln'o"f�V'I'f6f Quality SI'ORMWAT R NIANAGEM]- `4T•P PkMIT APi?LT.CATION FORM VET DI TF?NTION' BASIN SUPPLEMENT i,. "ibis rur•rrf friary lie pfirltrxnJifr.d fnr r.r-tc ,Is an nr-it;inal Slormmvatcr ivlinaticmcnt Pisll,_Revicw_ Ai;'comj]lctc stormwatci- rnnnagcn,ent plan submittal inclucles an npl)lication form, a wct detention basin site„ 1cm, for caci," baSlli, dcsign calculations, anti: 3lans anti s ]ccifications sl,owin- all basin and outlet I] E l suite'iorc dctnils. PROJECT.INFORIVIATION Pro)cctNamc: The Marshes at River's 1 dge,'(formerly Barnard's Landing) -tontact•Persorl: .James 11. Pon tr. er,s, Jr.. , P E . Phorlc Nul]]bcr; 9� 10 )_815-0775 r0i pi•pjects with multiple I}asins, specify which basin this''wol-ksliect npplics to. I ' i3;isin.l3flltan, I;[cvatior] — 0.2 fl. (fore ref thc basin) r,'•Pcrinancnt Pool l Icv,rtion 5.8 f . (elevation of /hc orifice) ' ctnporary Pool Elcvntic}r, 7.00 ft. (r.'Icvrrtion of Me discharge structure oVer/low) • ' ; rircrrs Pcriiu+Went Pool Surlacc Area , 01.6 sd. ft. (lrrrtr.i sdf! Jl1Cr Cl!'L'rr ell !hc on/ice cle'vcrtion) ' • Drainage Area l.. 84 :Ic. (0r1-site Alai n/f-.cite (hvinagc to lire ba.vin) t Im'licl'vious Area I . 21 :3c. (r-fu-sire am/ off -site ilrrrirr(lr;c Iv tlrc hn.ciu) _ {Pcftliancnt fool Volume r G, 053 cu. 11. (ci` Fiat volume of'inuin basin (rwl fo!•ebcry) rr, - -.;1'oa ,iiy, , i:!, _�...._.�_..�.. I'cmportlry Pool Volume Z: , 329 cu. ft: .nI) : ..,. ; I . L t.- i lII 61 �(rol ilrnc rlclrrivc'(l ahove the permanent pool) Foil; 'cl',ty VOIM11C 2 cu. R. .(r11)hr0xiIWI1cly 20% o 'lotul volmnc) ,.''Other" ptil.-Ometers (.cru;frlr..c ,rrr err to rlrrrinrrs=c' nrra I o.�i orrr DWO fabler) Dramctel. of 0r"id`rcc E , {} ill. (2 to .5 elrly lemporary pool rlraw4ot'trn require(i) .'Tnc'si�n.Rainr!lll ]..0 in. ::Ocsi�n,TSS .P.cn]oval -' _ _ 9_Q, �'%, (rrrirrirrirrnr �S'S°rf r'cgrtirc'rl) : form SWU-102 hcv ;.90 I'a ;c 1 01,11 r-ootnofes: t When using the Division SA/DA tables, the correct SA/DA ratio for permanen' t 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 1n the 20 coastal counties, the requirement for a vegetative filter maybe waived if the wet detention basin is designed to provide 90% TSS removal. The NCD) Nit BMP tnanual provides design tables for both 85%, TSS removal and 90% TSS removal. ]I. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of I✓nvironment, Health and Nattind Resources, Febrttary 1999) and Administrative Code Section: 15 A NCAC 21-1:.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 Stormwhter Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. 'Applicants Initials a b c e The permanent pool depth is between 3 and 6• feet (required minimum of') feet). The forebay volume is approximately equal to 20%, of the basin volume. The temporary pool controls runoff from the design storm event. The temporary pool draws clown in 2.10 5 clays. If required, a 30-foot vegetative fillet- is provided at the outlet (include non -erosive flow Calculations) f. The basin length to width ratio is greater: than.'3i:1. g. "Elie basin side slopes above the permanent pool are no steeper than 3:1. h. A submerged and vegetated perimeter shelrwith a slope of 6:1 or less (show detail). i. Vegetative cover above the perman' nt pool'cicvation is specified. J• k A trash rack or similar device is provicled.for both the overflow and orifice. A recorded drainage easement is provided for each basin including access to nearest right - Of' -way. If the basin is used for Sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. in. A mechanism is specified which wi11 drain the basin for maintenance or an emergency. III. VET DE'rEN`1'ION 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) 0 does OJ does not incorporate a vegetated filter at the outlet. This system (check one) 0 does ff does not incorporate pretreatment other than .I forehay. l:orn SWU-102 Rev 3.99 Page 2 of 4 ='l"`;'•',i`Milihtcnancc activities shall be pcilormcd as follows: =t47` iA''fl' r-cvcly Significant runoff producing rain all cvci�t andAlt least monthly: �. ', ;•; a. Inspect the wet detention basin system for seditncnt accumulation, erosion, trash accumulation, "j.;,' '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. .Repair eroded arms immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative !"cover to maintain a marimurn hcighl of six inches; -ind,relnove trash as needed. 3'. Inspect and repair- the collection system (i.c. c itch:l�asirls, piping, swales, 6prap, etc.) quarterly to maintain i',. Ilroper functioning. 41Remove accumulated sediment from the wet tictcntioll,basiri systcrli semi-annually or when ciepth is reduced to 75% of the original design depth (sec din-, im below). Remove([ sediment shall be disposed of :.in an appropriate manner and shall be handlcd'in a tnanner that will not adversely impact water quality (i.e. sfbcl<piling near n 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 rending and not readily penetrate into acC611iillnted sediments. When the permanent pool depth reads 4.5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 2 • g5 feet in t[tc forebay, the sediment shall be removed. RASINDIAGRA.M (fill ill Ma blmll' ), f'crrmanca!'Poo1 I"slevation Sediment I2cn oval Iil, 2.�5- djV1 5,/ -------------- movtl llevrtion Z•3 7 N Bottom Ele :rtiort 2 . U ------,------.---,----------------------------- -------- ' Sctl�incnl Rc 13ortonYl~[cvation 0 25OX, F(1t21;11Ay MAIN t'ON1) 5. �Removc cattai1S and other indigenous wcll7ncl prints when tlicy cover 50`% of t}lc basinsurfacc. `1`hcsc plants shall be encouraged to grow along the veget,aled:shclf.and lorcbay berm. Ci-' If the basin must be drained for an cmcrgcncy or'Lo perform mainlcnancc, the f [UShinb of sediment through :!'the cmcrgcncy th'aln Shall be mllltnlr'Led to the maxis llln cxt.enL practical. Form SWU-102 Rcv 3.99 Page 3 oi',l 7. All components of the wet detention basin system shall be maintained in good working order. z. I acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: William Dansey Title: Presiden Address: R (:ntIrtnP� Square, Apt. Phone: (252) 756— 02 Signature. Date: •Z6'OZ VII. Les NU L I OJO Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. S.�:Dl�tA A I)✓t _ , a Notary Public for the State of County of P� �� , do hereby certify that,% personally appeared before me this 25 day of_aIIGhn•�►r _, 20DZ ,and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, °y' r _ BOG/ SEAL My commission expires [.U"J Form SVTU-102 Rev 3.99 Page 4 of Permit No. . VU XQ Z/ZO1 i (to he pr6vitfuel I)1v 1)TVQ) State of Noi-th,.CaroIiim Deparlmetlt of Enviroiirr6elit anri NatL�ral Resources Division of Watcr-Quality STORIVIWATER MANAGEMENT'PERMIT APPLICATION I:ORM " WETDETENTION :BASIN SUPPLEMENT 'I'llit farm m,ry be plrotaeopfecl far irsc ;ts an original l . DWQ Stormwntcr Managenignt Plan Review: h Complete stormwater• manaozz-cmcnt plan submittal :inc1LICICs an application form, a wet detention basin ,upplcmcnt for cnc11 basin, design calculations; nnd. pInns' and' specifications showing all basin and outlet sinicturc details. f ' I.' rROJECT INFORMATION PrCijcCtNarnc: The Marshes at River's Edge (formerly Barnard's Landing) i Contact Person: James ii _T, _ _ r , Phone Number: { _910 ) _815-0775 I or projects with multiple bnsim, specifywhich basin this' worlcshect`applics to: 2_ �rlevfrtiorts . 13as413ottotrl lJlcvation _�,� ft. fvvr nfthe basin) Permanent Pool Elcvtttion 6.0 ft. (elevation of the orifice) Temporary Pool Elevation 7' z It. (C',lewi ion (�f tlrc elischarge siractirre ovel1701y) (u•e0s -face 13 5 1 Perinanct7t Pao{ Stn face Ai- sq. it": '{lrcrierarrr%uce circa rrt the or elevation)-, , Draintigc Area 8.59 ac.. (uii-,site aml gfsile drainage to the basin) i Impervious Area 4 . $tom tie. (oh, -,cite and off --site cb-ain(Wv to the basin) volunles Pci'tntirlcilt Pool Volume 38,212 cu. ft. (conibinccl volume of niain basin and forchay) 4T6mpol,ttry Pool Volume 17,724 cu. ft. (volume iletainc(l above the pernumeni pool) 176feb iy Volumc ..,, 8,234 cu. ft. '(appropnuriely 20%of lolal volume) 4If j r Other parmrrctcrs �� .. : SA/.DA 3.6l8 - `- • . (sun force area to (Iroblagc area r'crtio fi•ortt DWO table) Ditlmcicr of Orif icc 2.0 in. (2 to 5;(lay temporar}, pool ch•cr,h-flown require(i) Dcsibn Rainfall 1.0 Dcsigil TSS Rcmovnl' 90 '% (irriitirrrurrr 5'S% requirefl) Foriii SWIJ-]02 ttcv 3.99 . 1 of t , t' Footnotes: 1 When using the Division SA/DA tables, the correct SA/DA ratio for permanent'pool sizing should be computed based upon the actual impervious % and permanent pool depth. Lincar interpolation shotilil he employed to determine the correct value for non- standard table entries. 2 to the 20 coastal counties, the requirement for a vegetative filter maybe waived if the wet detention basin is designed to provide 90% TSS removal. The NCDGNR BMP manual provides design tables for both 95%TSS removal and 90% TSS removal. II. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Mantra; (N.C. Department of.Environment, Health and,Natural; Resources, February 1999) and Administrative Code Section: 15 A NCAC 214 .1008. Initial in the.spnce providccl 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 Permit Application Form, the agent may initial below. If n requirement has not been met, attacli justification. Applicants Initials a. b. c. d, c. VOWE-M-1 The permnnent pool depth is between 3 and 6' feet (required minimum of') feet). The forebay volume is aphroxiniately.equal to 20%) of the basin volume. The temporary pool controls runoff from the design storm event. The temporary pool draws down in 2 to S days. If required, a 30-foot vegetative filter is'provided at the outlet (include non -erosive flow Calculations) The basin length to width ratio is greater. than,3:1. The basin side slopes above the permanent pool are no steeper than 3:1. A'submerges€ and vegetated perifzncter shelf with a slope of 6:1 or less (show detail). Vegetative cover above the permanent pool elevation is specified. A trash rack or similar device is provid d for both the overflow and orifice. A recorded drainage easement is provided for each basin including access to nearest right - of' -way. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. nl. A mechanism is speclf ied which wll] drain the basin for maintenance or an emergency. III. WET DETENTION BASIN OPERATiON AND MAINTENANCE AGREEMENT The wet detention basin systcm is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check rue) 0 does a does not incorporate a vegetated filter at the outlet. This system (check one) 0 does 9 does not incorporate pretreatment other th;rrt a forebay. Form SWU-102 Rev 3.99 Page 2 of 1 ;t;. •, Maintenance activities shall be performed as follows:- 1.., 'After every significant runoff producing rainfall event and at Icast monthly: a.; Inspect Elie wet detention basin 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. 1 .2. 'R`epair eroded areas immediately, re -seal as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches,' an(I remove trash as needed. 3. Inspect and repair the coilection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain I proper functioning. 4: Remove accumulated sediment from the wet detcntion'basin' system semi-annually or when depth is reduced to 75% of the original design depth (see diagnim below). Removed sediment shall be disposed of in an appropriate manner and shall be handled iri'a'-mariner that will not 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 accitmulatcd.sediments. i When the permanent pool depth reads c�13 > cct in.tile main pond, the sediment shall be removed. 3.0o i When the permanent pool depth reads feet in the forcbay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permancni Pool Elevation 6. 0 Sediment Roil oval 11. 3.0 75' U + Sediment Removal llevation l 88 INI Bottom Elc atlolF 2-� � ��u Bottom Elev;ttlon 0. 5 ,� 25%^� j FORI'snAY MAIN POND . is S. Remove cattails and other indigenous Wctiand plants when they cover 50% of the basin surface. These p[ints shall be encouraged to grow along the vegetated shelf and forcbay berm, r 6. If the basin must be (trained for an emergency or to perform'maintenancc, the flushing of sediment through the emergency drain shall be minimized to the-maximuin.ext`ent practical. { Fornt SWU-102 Rev 99 Page 3 of.4 I ' ' 7. All components of the wet 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 maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: William Dansey Title: PresiqVnt Address: 8 ourey Squ Phone: (252) 75 --8 2 Signatu,C'ZC J tt Date: t 1-- P = DZ Apt. 8, Greenville, NC 27858 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, JenJtr, S. . a tJl ioyi a Notary Public for the State of— 6or—ACa ►'c k),e , County of RI f do hereby certify that W,IIt'0.ryl t • _UGLhS2�•! ►„ Jr. personally appeared before me this ZS#y`day of >D d r , ZPARand acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, �LW ��•�`�� E..... ....R S. p110 �Ay +� 'PO COU SEAL My commission expires Z Form SWU-102 Rev 3.99 Page 4 of 4 Y G&yt-"- 2y- • uvl €'et LNo. SriV 86Z12v1 (fo be provided by 1)YVQ) State of Norall CtI olina Dc,I�artrlle:rlt of i nvi'ron`rricllt artd Natur�I Resources y. ;1l Y DiviSicin oC[V�►f:t'r:(2ti it STOI:MWA`I E R MANACI NILN'F"t?EP,,MZ`I' APPI1ICA'FION FORM WET DETENTION BASIN SUPPLEMENT i This lilrtl! mny be ph(itaclifiiciffor rrsr. ,is ;rn oriryimd DWQStorrnwatcr M,�n lgcmcr�l Pl_rrr f�cvic\v: —'A'"corlip[ctc storrrl\vatci-. m,rl),t;;crllcnt plan :ubnlittal inrlucics.an application form, a wet detention basin .Suppl' =rlt fos' arch IMS111, cic510r1 c;1lCL1 ation.s, 211dpl,lns find spcci(ic�ttions showing -ill basin ind outlet strttctilre details. i. , PROJECT INF61Z11IATION °= T'rojectN,irllc: The Marshes at Rive'r.'s. Edge Uormerly Barnard's Landing) ;. — - Cont,tct'Persorl: .Tames I1_ Fentress, .1r.., P.E. PhoncNumba., 930 _$��U15 To projcct,s with multiple basin.,, specify which basin this worlcslicet ipplics to: 3 elrvrrtir�rrs . .13asin Bottom 17.1cvation 0.0 ft. (floor bj'lhe basin) Tcrinancnt Pool I lMltiOn '1 6-_0 ft. of•the orifice) Temporary Pool l lcv:lliort 7.5 ft. (c ct,aliorl vflltc ovc>./lorv) P.errrl<inent focal Surface Area 4,033 sq. ft: (Ilwlei•vinfilcc area al the orifice clerrrtion) Drain, 71-c,t 3.27 :tc. (on-.eil[ owl of=.si1r. drainage to the hrrsin} ' >fMpervious Area 04 —111c. (ran -site aw off silc drain(,gc to the basin) _2. ' rnlrrirlc.c PCIC7mncr)t fool Volume 9,53E cu. €C. (comhi.nctl vohwic a/InLrl11 brshi and )renal') Te'mtsoritry I'ool Vo1n111c 7,416 cu. ft. (l,olum detained ahoy the perm rrrrelit pool) For'cb;ly Volurnc _ 2,222 cu. ft. (approxinrrrtelj, 20% of lotnl volunio Qtlrcv• parunlclers `SfI/Dn1 (ilrfitcc area to droiiiage area red ib ji•wrr DY6'Q table) t . Di;im, ctcr of on nice _W I.0 in. (2 to S.Llrry telrtporrny pool dr•rris-down required) �Dcslgn Rttinlitl€ 1..0 in. r,,.DcSign TSS lZertlov,tl 85% _ ��F (nr1111l311l117 85% 1-c(frlired) 'Form SWU-102 Rn, 3.99 I'a !c 1 of, ,t Footnotes: l When using the Division SA/DA tables, the correct SA/DA ratio for permanent`Pool sizing should be computed based upon the actual impervious % and permanent pool depth. Uncar 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 maybe waived if the wet detention basin is designed to provide 90% TSS removal. The NCDL-NR t3MP manual provides design tables for bash 85% TSS removal and 90% TSS removal. 11. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of.Environment, Health and•.Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 214 .1009. Initial in the .space provided to Indicate the following design requirements have been met and supporting documentation rs attached, If the applicant has designated an agent in the Stormwater Management Permit Application Norm, the agent may initial below. if a requirement has not been met, attach justification. Applicants Initials a. b, C. d, e, f. 9. h. J_ k The permanent pool depth is between 3 anti G' feet (required minimum of' feet). The forehay volume is npproxinrttcly.cqual to 20°/, of the basin volume. The temporary pool controls runoff from the design storm event. The temporary pool draws clown in 2.to S days. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations) The basin length to width ratio is greater: thane 3:1. Tlie basin side slopes above the permanent pool are no steeper than 3:1, A submerged and vegetated perimeter shc1flwith a slope of 6:1 or less (show detail). Vegetative cover above the perniartent pool elevation is specified. A trash rack or similar device is provided.for both the overflow and orifice. 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 prior to use as n wet detention basin. tn. A mechanism is'specified which will drain the basin for maintenance or an emergency. Ill. VET 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) 0 does a does not incorporate a vegetate(! filter at the outlet. This system (check rune) 0 does �i does not incorporate pretreatment other than a forebay. Form SWU-102 Rev 3.99 Page 2 of 4 •I, ' Maintenance activities shall be performed as follows: 1: After every significant runoff producing rainfall event and at least monthly: a. inspect the wet detention basin system 'for,seditrtent 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, mow vegetative cover to maintain a maximurn 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 functioning. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (sec diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a,man'ner that will not 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 �thc main pond, the sediment shall be removed. When the permanent pool depth reads 4 •-5 feet 1n'the forebay, the sediment shall be removed. ! BASIN,DCAGRAM ffill 'in the hkinkti) �7 Perniancnt'Pool Elevation scdimcnt Rcn oval r:t. 1. 5 75' 1) 1 .. ' r ______.._-_-_ Sedimc[rt Removal Clcvation 1.5 75°/0 •� I. bottom Clc ation .0. 0 -� %1 ------------- ------ ® _ _ R-_ ^t3ottom 1 levation 0.0 25% r TOREBAY MA[N POND • 5 1 5:. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surfacc. These plants shall be encouraged to grow along the vcgetaieci shelf and forehay berm. G. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to theextent practical. Porn SWU-102 Rev 3.99 Pagc 3 of 4 : , 7. All components of the wet detention basin system shall be maintained in good working order. acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above. 1 agree to notify UWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: William Dansey Title: Pres ent Address: 8 Cou ney Squar Phone: (25 ) 6-8 02 Signat Date: I 1-2 S - v t. 8, Greenville, NC 27858 Note: The legally responsible party should not be a homeowners association unless more than 501)K of the lots have been sold and a resident of the subdivision has been named the president. 1, ')en S.-bus>Dn.-- a Notary Public for the State of 1Vw4K ct./a11y14, County of _ �, T-L do hereby certify that 1 'QYII� E • Dwi s 8! J lr. _ personally appeared before me this ZS clay of r71jp.,tnj)t - 2D0 L, and acknoowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, �•• �FER o DqA& tLOITARI' r r r Q � v r 00 cou;i Ow SEAL My commission expires Form SWU-102 Rev 3.99 Page 4 of 4 �y ;[ Permit No. S%UJ 0 2>'Za/ (tn be Provided by 1) 6YQ) State ofN rfli Departrrrent of PnviranrncnL 7ncl Natural Resources Divisio'OI✓'•�til�itCr:.Quality S`.1'ORM1, ATER MnNAGlylVlENT I?I'RMIT APPl..ICATION DORM WE'r DETE NTT .0N ASCN SUPPLEMENT This font) rruiy Pre j)hot�a jicd for.usc as nn origirml DW ; Stor nnvatcr IV[an_i crlt T?l �n P�cvic�v: f't1''comnlctc starm�vatcr-manal;crncnt plan submittal' fli lHcicspan application form, ,: wet cictcntion basin ;supol6nicnt for Inch basil), cicsign calculations, and 1)i,ins <incl spcciFcations showing all basin and outlet Striicturc dctails. 1 J ",' .PRO.T> cr-INI761MIT TION 'Project Name: —_ The Marshes at River 's Edge (formerly Barnard's Landing), ,CgnfactPcrson:Jame n I1._]?entr-c^_,7r._,_ ]_�I«�''1'17onc'NtrmCacr: 1r01 projects with mu1ti11Ic basins, specify which bZsin.this worlcsflccG: 11)JAc,s to: 4 ..'clr:uatiorrs .BaSlrk bottom I levatloll •' . r;Pcrmn'ncnL fool r1cvation ! Tcmparnry T'oal l[cv,ltion f3_ 0 — itr'c,(IS r ,I?clm,incnt fool SLlificc Area 4,233 scl. Drainagc Arco ac :irpncrviclus area 1. 113 -�_- __. ''v��lriJnc-a' ;' 'rP,ctinitncnt Pool Voltinrc 7,.�?.�,;� cu i;:It�1,cmPomlvy Pool Volume _rE 912 cu Forclny Valrrrllc _�.,3�� cu :.� 411i'c°r perrrrnrctcra• 'Diturictcr• of Oriiicer ;Dcsi n.R:�infall ;?i)esign,TSS PtCill()Vnl , .0r1)1:SWu-102 ReV 3.9.) (flow (f the basin) "(eVecilritiriir i�f the orifice) (cici.,e fon of the dischvrr,e strrrelurc ovcr1701y) f[. „ .(I 'ater' ,vul face area ell the 01- fice elevation) (fmyilc.arrrl of lsilc drainfige to the hasin) UfT,vik, elivitrrrf e to the basin) R. (combinc(1 volume of'tr ahi bcrsbi arr(l fareboy) 1•t, " (volrrnrcaek.w ine(l above the pet-))i 11cut pool) It. (crppn,,fybrralc1Y 20X, of'lolol v.ohrmc) —__4.593_�� •,� (.eur-Jfrce' rn•ea,l'o drairra�rc rrr•crr r•atirrfi�f�rn Drr�Q table) 1.0� irz. .(/,.10 5 drrh temporaq pool draw -down requited) 1.0 --9-0—___ "„ (rrrirritrr7irn SS`% rcfprircc!) 1'nF;c I of' ;I Footnotes: r When using the Division SA/DA tables, the correct SA/DA ratio for permakent'pool sizing should be computed basest 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 nuy'be waived if the wet detention basin is designed to provide 90% TSS removal. The NCDI Nit RIMP manual provides design tables for both 85%TSS removal and 90% TSS removal. 11. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per Ole Stormwater Best Management Practices Manual (N.C. Department of.Environment, I-ical(h and Mitural RCSOlrrces, February 1999) and Administrative Code Section: 15 A NCAC 21-1 .1008. initial in the space provided to indicate the following cicsign requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit 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 G' feet (required minimum of 3 feet). b. The forebay volume is approximately equal to 200/n of the basin volume. C. The temporary pool controls runoff from the design sloi m event. d. The temporary pool draws clown in 2.to 5 clays. e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calCUlations) f. The hnsin length to width ratio is greater: than 3:1. g. The basin side slopes above the permancilt pool are no steeper than 3'. 1. h. A submerged and vegetated pei-1hiCter shelf with a slope of 6:1 or less (show detail), i. Vegetative cover above the permanent pool elevation is specified. j. A trash rack or similar device is provided.for both the overflow and orifice. k. A recorded drainage easement is provided for each basin including access to nearest right - of -catty. i. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wei detention basin. m. A mcchanism is specified which will drain the hnsin for maintenance or an emergency. I1I. WET DETENTION BASIN OPERATION AND MAINTENANCE AGIIFEMENi' 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) 0 does Udoes not incorporate a vcl;etated filter at the outlet. This system (check one) 0 does 9 does not incorporate pretreatment other than a forebay. ronn SWU-102 itev 3.99 Page 2 of '..; i' Iviainlcnancc activilics shall be performed as follows: ' E sj's., . c , ,l �1it every significant runorf producing rain{alf, event amd'at lcast monthly: _. a. ; inspect the wet detention basin systern For•'sedirrient .recttmulation, erosion, trash accumulation, vegetated cover, and gcncral condition. U.'' Check and clear the on bce of any obstructions ,such that drawdown of the tetnporaty pooi'occurs within I; 2 to 5 days as designed. Y. ,2:,• R'cpair eroded areas immediately, rc-seed as rrecessary to maintain good vegetative cover, mow vegetative 'cover to maintain a ntaximum height of six inches, and remove trash as needed, 3.',.',lnspcct and repair the collection system (he. catch basins, piping, swales, riprap, etc.) nuarteriy•to maintain praper functioning. �t.• Remove accumulated sediment from the wet_ detention basin system semi-annually or when depth is reduced to 75%, of the original design depth (cc clia'('�rarn below). Removed scdimcnt shall be disposed or in an appropriate manner,in d shnII be hand Ic6in n irr`anner that will not adversely impact water quality (i.c. 'stockpiling near a wet detention basin or stream, ctc.). .. , The measuring device used to determine the Sediment elevation shall be such that i( will give an accurate :.j;. depth reading and not readily penetrate into accumulated sediments. '• ". When the permanent pool depth reads 3. 38 RTC the main pond, the sediment shall be removed. When the permanent pool depth rends 2' 2' fcct in.thc forcbay, the sediment shelf be removed. r i seciintelrt Run o l3ouo,n llc i. BASIN DIAGRAM ­f%1 rrf 111r,':hlaiih:�'� Pernanneni focal tilevation 7.0 l I'L r�, . t --------- ---- scdimcnt Removal Lilcvatinn 7M rlibn.3. 0 ---------------------------------• --------------'---- l3ailom I levatiozi 2.5 25% FO12KRAY MAiN POND ARemove cattails and otlrcr indigenous w Qnd planLswhcn they cover 50%) or the basin surface. These Plants shall be encouraged to grow along the vegetate[] MilTantl forebay berm. Ci• If the basin must be drained for an emergency or to per.forrn maintenance, the f]uslting of sediment though 'the emergency drain .shall be minimized to the maxiinurn extent practical. Fonn swu-m Rev 3.99 Pate 3 of& 7. All components of the wet 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 maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: William Dansey Title: P ident Address: 8 rtney Sclu phone: (252 7591702 _ . i1 / I I I /AA Date: I I -,Z- pt. 8, Greenville, NC 27858 0 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of f v lArf'rJlfhG , County of �j��- _ do hereby certify that �� t� "'QM� yC'LYtse-.Lg r� personally appeared before me this _ S day of f'�)V*-br+r �13Z ,and acknow•lledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, �`•�`��F R S. 0,00 t i COUN SEAL My commission expires AAA. I A AALA Z Form SWU-102 Rev 3.99 Page 4 of 4 S Permit No. -5�vgo Z/z (rr) be provided by 1)T Q) State'of North Car61ilia f if'°iji j f , Departlnetit of l;riviroiin!eiit a'nd Natural Resources Division of-- Wi tcr.Quafity STORMI>WATER MANAGEMENT'PERMIT APPLICATION FORM WET DETENTION.. BASIN SUPPLEMENT This foi'nr imay be pflotacolried for, use ris an oriL imrd ,4 I)WO.Storrnwatcr•TVl<lna(,,,crncnt Plan Review: �.W '6nipletc stormNvalci-_in,,inagcmcnt plan submittal includes an application form, a wet detention basin ',supplement for each basin, design calcLilations, and plans in([ specifications showing all basin and outlet "strucillrc details. ;; i 1.1 PRO.IrCT INrT 6R1ViATio "ProjectNaine: The Marshes at River's Edge (formerly Barnard's Landing)'. Contact Person: James H. Fentress, Jr., P.E.-, PlioneNumbcr: ( 910 815--0775 I:or prlojects with multip[c basins, specify which basin.this worlcshect•applics to: 5 elevalions 'Basin Bottom Elevation 2.0 f1. (floor of the basin) Permanent Pool Elevation 6.0 ft. (Cleij(llioll ref the orifice) Tcmpornry Pool Elevation 6.8 ft. (cleyalion ofthe dis'c'hargeslrrvio-e oiclfow) . i1 areas j ;Permanent Pool Surface Area 3,105 0V(ItCI',Slll.f(ICC Cll'E'(1 (ft tllC' ol'!flCC' L'1L'VCrt1011) Dralm;lge Area 1.05 tic. (01175ltC (111(1 off -Site drainage to tllc' basin) 1n1pervious Aren T 0.72 ac. (ol'l-sill and off-Slle drainage to the basin) �' l7nllnlres• .. +;Pennancrit Pool Volume 4, 149 cii, ft. (evrrlbinr ml volwne of'rllnin busirl und.foreb(rv) i hCmpol'al•y POOL VOlLlrilC 2,914 CLI. ft. ' (V0111171eWOOill Cd ObOVC 111C pel'1IWIC'lIt p001) I Ol Ci)ay VO1L1r11C 909 crl, f t. (uppi.-ox nalelY 20% of total volwne) fL'r' �]Cll'lllrlC'I L'1',5' of,: SX.1DAt 5.916 (su face area to dr•Cllrlage area r(ltlo.froin DYVQ table) Diameter of Orifice 0.75 1n. (2. to 5'(.1cli, tempormy pool draw-(loii,n requircel) Dcsion'Rainfali I Desii,h TSS Rcmoval 2 90 % (lninimuni 85% required) Morin SWU-102 Rev 3,99 Pngc 1 of 'I 1 Footnotes: t When using the Division SAMA tables, the correct SA/DA 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- standud table entries. 2 In the 20 coastal counties, the requirement for a vegetative filter maybe waived if the wet detention basin is designed to provide 90% TSS removal. The NCDI N R BMP manual provides design tablet for both 95% TSS removal ,and 90% TSS removal. II. REQUIRED ITEMS CHECKLIST The following checklist oUthr[CS design requirements per the Stornlwater Best Management Practices Manual (N.C..Department of.Environment, I-Icalth and .Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 21-1 .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 Permit Application Form, the agent may initial below. Il' a requirement has not been met, attach justification. Applicants Initials n. The permanent pool depth is between 3 and 6,feet (required minimum of 3 feet). b. The forebay volume is approximately. equal to 201Y., of the basin volume. C. The temporary pool controls runoff from the design storm event, d. The temporary pool draws clown in 2.to S days. Lv�_ c. If required, a 30-root vegetative filter is provided at the outlet (include non -erosive flow calculations) 1'. The hasin length to width ratio is greater than 3: 1. g. 'fhe basin side slopes above the permanent pool are no steeper than 3: 1. h. A submerged and vegetated perimeter shelClwith a slope of G:1 or less (show detail). i, Vegetative cover above the permanent pool elevation is specific(]. j. A trash rack or similar device is provided,for both the overflow and orifice. 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 prior to use as a wet detention basin. m. A mechanism is specified which will dt'ain the basin for maintenance or nn emergency. III. WET DETI.NTION 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) 0 does Elfloes not incorporate a vegetated filter at the outlet. This system (check ime) 0 does U does not incorporate pretreatment other than a forebay. Fonn SWU-102 Rev 3.99 Page 2 of-1 • r r ..:'Maintenance activities shall be performed as follows: I.. After every significant runoff producing rainfall event and at least monthly: a. Inspect the wet detention basin 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. i + 2.: ^ Repair eroded areas immediately, rc-seed as necessary to maintain good vegetative cover, mo�v vegetative cover to maintain n 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 functioning. 4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (sec diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in 'a manner that will not adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.). The measuring device used to determine the seditricnt elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth rcat[s 3.0 feet in thc.main pond, the sediment shall be removed. When the permanent pool depth reads 22 25 feet in the forebay, the sediment shall be removed. BASIN -DIAGRAM (fill iri the hlairlr.r) 1 ' � Pcrm�ncnt !'onl Elevation sediment tten oval ill, 3. 75 75` 1, 6.0 41 Sediment Rcmov�l I lcvation 3 • 0 75% S notlnnr tale ---------------•------------_-__--_-__-------- Bottom Elevation 2 • � 25% l+pitl'st3AV 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. G. if the basin must be drained for an emergency or.to perform maintenance, the flushing of sediment through the -emergency drain shall be minimized to the maximum extent practical. Form SWU-102 Rev 3.99 i'anc 3 ot•4 . r 7. All components of the wet 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 maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: William Dansey Title: Pres ' nt Address: 8 Cou t ey Squa t. 8, Greenville, NC 27858 Phone: ('252) 7 —87 Signatur Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. 1QWSOK a Notary Public for the State of N zrr'4L (g` 4Q H� County of i",�4 do hereby certify that yV I E . personally appeared before me this Tz day of I'1ai6e ixr, 200 L and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, 7A 0i. A � w '�I�',���ti •M�i• Gam,\\ ".4 �OUNT�,� •�1HIJi11N14 SI AL My commission expires J��� 4,,V3 U- U f FormSWIJ-lo2 Rev399 Page a of 4 Y' State Stor vater Management Systems Permit No. SW8 021201 The Marshes at River's Edge Stormwater Pen -nit No. SW8 021201 New Hanover County Designer's Certification (Partial) 1, James H. Fentress Jr. PE , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, The Marshes Ponds 1 & 2 (Project) for Deceased William E. Dansey _ (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: SEAL Signature,,�� �. �PkOLI1Vq �., Registration Num er PE 20643 :''� C,. • r Date 02/09/18 = o ?o Partial Certification covers Pond's 1 & 2 and all tributary collection system, buildings, and parking mECERIVEn g FEB 13 2018 BY: State St.4 water Management Systems Permit No. SW8 021201 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 472. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. _M-4. The out]cVbypass structure elevations are per the approved playa. 5. The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. All slopes are grassed with permanent vegetation. 8. Vegetated slopes are no steeper than 3:1. 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. 4-i 1. Required drawdown devices are correctly sized per the approved plans. _A012. All required design depths are provided. l 3. All required parts of the system are provided, such as a vegetated shelf, and a forebay. T�Lll.4. The overall dimensions of the system, as shown on the approved plan, are provided NCDLNR-DWQ Regional Office Tony Roberts, New Hanover County Building Inspections ECEIV 9 FEB 13 2018 BY: