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HomeMy WebLinkAboutSW7080904_HISTORICAL FILE_20210714STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW 1(%� DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD tvA Ro ROY COOPER Governor ELIZABETH S. BISER Secretary BRIAN WRENN Director NORTH CAROLINA Environmental Quality July 14, 2021 Nags Head Partners, LLC Attention: C. Brantley Tillman 1004 Wake Forest Rd Raleigh, NC 27604 Subject: Stormwater Permit Renewal Stormwater Management Permit SV 7080904 The Shoppes at 10.5 Dare County Dear Mr. Tillman: A Division of Energy, Mineral, and Land Resources file review has determined that Stormwater Permit SV 7080904 for a stormwater treatment system consisting of an infiltration system serving the Shoppes at 10.5 located at 2515 S Croatan Highway, Nags Head, NC expires on December 30, 2021. This is a reminder that permit renewal applications are due 180 days prior to expiration. We do not have a record of receiving a renewal application. Please submit a completed permit renewal application along with a $505.00 fee for permit renewal. Also, it was noted in the file review that a designer's certification that the project was constructed in accordance with the approved plans as required by the permit has not been submitted. Please include this with your application. Permit application forms for renewal can be found on our website at: https://deq. nc.gov/about/divisions/energy-mineral-and-land- resources/stormwater/stormwater-program/post-construction-2. North Carolina General Statutes and the Coastal Stormwater rules require that this property be covered under a stormwater permit. If you have questions, please feel free to contact me at (252) 948-3923. 1 will be glad to discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the application forms. You can request a copy by e-mailing me at roger.thorpe(a)ncdenr.gov. Sincerely, Roger K. Thorpe Environmental Engineer �p North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources LLL�!!5:— Washington Regional Office � 943 Washington Square, Nall I Washington. North Carolina 27839 25194b 6481 Quible Quible & Associates, P.C. ENGINEERING • ENMRONMEMAL SCIENCES • PLANNING • SURVEYING SINCE 1959 November 17, 2020 Carl Dunn, P.E. Division of Energy, Mineral, and Land Resources Land Quality Section — Washington Regional Office North Carolina Department of Environmental Quality 943 Washington Square Mall Washington, NC 27889 Re: Stormwater Management Permit High Density Permit SW7080904 Modification Shoppes at 10.5 Dare County, NC P.O. Drawer 870 IGffy HoW& NC 27949 Phone. 252d91-8147 Fax: 252-091-8146 webquible com Mr. Dunn, On behalf of Nags Head Partners, LLC, Quible & Associates, P.C. hereby submits for your review and approval a High -Density Stormwater Management Permit Modification package for the above referenced project located in Dare County. The enclosed narrative will explain in detail the stormwater management of this site. Please note stormwater supplements for the existing infiltration trenches have not been provided as changes to the existing stormwater measure and coverages are not proposed with this development. The following items are enclosed and shall be considered part of this package: 1. A Review Fee Check in the amount of $505.00 made payable to "NCDEQ"; 2. One (1) original and one copy of the Stormwater Management Application Form (SWU- 101); 3. One (1) original copy of the Supplement Forms (Infiltration Basin Only); 4. One (1) original copy of the Operation and Maintenance Agreement (Infiltration Basin); 5. One (1) copy of the Stormwater Narrative and associated documents; 6. One (1) copy of the USGS Topographic. Map with site location identified; 7. One (1) copy of the Property Plat H-190; 8. One (1) copy of the Secretary of State Corporation page for Nags Head Partners, LLC; 9. Two (2) copies of the Plan Set. Please do not hesitate to contact me at (252) 491-8147 or csaunders@quible.com should you have any questions or require any additional information. Sincerely, Quible & Associates, P.C. Cathleen M. Saunders, P.E. Encl.: as stated Cc: Nags Head Partners, LLC 10" W 075° 39' 00 00" W 075° 38' 30.00" W 075° 38' 00.00" W 075° 37' 30.00" W 075- 37' ' 4.'. /•� .fd •�, a\��• \ \ VO' \\\r NA� 12 °'.�`� ``G`: A G A N T I C . � Lan ' in �-::� of irC.?�-?c�`—•I7--,� > 0 E A N •' 4 rI �•�>�. � `n a V"'� li, �fllf,,� PS':ix�`4i•s:.• SITE : " NIS Rt o yr \,�i .rl �t�� t \l`.. .d...a a ;\'; CO- \ r' 9 U • : M. OJ ry x 1 ,tics ! fj''?��• .G' 4 * ? J '�•.;:i'.: -. �^ fl e ee m - mom: l•:> :''':; .• -�r' �x iEngagernent.;Hill SNiiin Sa \ STATE;:PARK':.f:; f0uned, ss .:. :; c zoos To �0" W 075° 39' MOO" W 075° 38' 30.00" W 075° 38' IN 00.00" W 075° 37' 30 00" W 075' 37' sws rase Quible SCALE 1:24000 D & Associates, P.C. 0 - 1000 2000 0000 4000 5000 6000 700 ENGINEEPING • CONSUL➢NG • PUNNING EWMNNEWa SCIENCES • SUW"MG FEET Rron , (M) 491 -e1n Im: (252) 49+-51" wro:....e•la•.c•m G 0 y �,,�r�. IL j ,fin VIA AT%�oy AR RT YC a vlc0'lrrY wav xi a1 � D Q� I I I 6: PGx r: Sea pe. 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DATE 01/07/09 FINAL SUBDIVISION PASQUOTANK COUNTY THE SHOPPES AT 10.5 HEAD TOWSHIP DARE COUNTY NORM o. (D m rn Yc [:6 IYA' Yl'16 M Tepper R O :IYAC°°'16 :N"L nmcnA. a na a r.»o. aii • Ax�soo.rts�ic °f mnlnv¢ .DLA11Rr rc IMS MIAIYM wl E 94fR F Il4y ACTH `IA4VC��. LCRTIrILAiF I KAIH F'M C HWCW E I o, CE", Y INAI IM'S /l A: Yi1$ f/YAYN LfYX A' MI `Uf RVISAA`"Y AN AL Ina: WI HAI'(ACA I M Y1 MVPYGI IIA II/AMI ri Al RFFFWNNW ART `JY iFAFLAU 1101 AM I At", i)T `iRKYFD ART `NMN' A5 IYIA`1N I �it 5 INA1 14 RA IV C'I M 11.AS Ca'a AIE1151 IOXAx1• NHLJ MY/ "A, Iw5 r1 A I I,A5 WE RAKL D IN ATG(('AN! MINDS .13 ASAMMTI' MIST rLRTAT5 A 1RNNVISILA(A I AM: WI IMN AN ANY p A(:AN1r FM HNC?MI II1I 1.SAILA'DIMN:f IIrAI RFCJ AIFS !'A4(.FES LA`IAVJ M MFSS Hr (gY�INN •SIN II.Rf. WLar.IRA II(N KnfXq AAy/Ynl 16:51M .ZDAY Y L , Quibler [•�R & Associates, P.C. ENGINEERING • CONSULTING • PUNNING ENVIRONMENTAL SCIENCES • SURVEYING 6 AINFTR 111AIL M MAWA 670 KIM KAM. NORTH CARWMI 27949 11/13/2020 North Carolina Secretary of State Search Results • File an Annual Report/Amend an Annual Report • Upload a PDF Filing • Order a Document Online Add Entity to My Email Notification List • View Filings • Print a Pre -Populated Annual Report form • Print an Amended a Annual Report form Limited Liability Company Legal Name Nags Head Partners, LLC Information Sosld: 1031613 Status: Current -Active O Date Formed: 3/6/2008 Citizenship: Domestic AnnuaL Report Due Date: April 15th Registered Agent: Tillman, C. Brantley Addresses Mailing 1004 Wake Forest Road Raleigh, NC 27604 Reg Mailing 1004 Wake Forest Road Raleigh, NC 27604 Company Officials Principal Office 1004 Wake Forest Road Raleigh, NC 27604 Reg Office 1004 Wake Forest Road Raleigh, NC 27604 All LLCs are managed by their managers pursuant to N.C.G.S. 57D-3-20. Manager C Brantley Tillman 1004 Wake Forest Rd Raleigh NC 27604 Member C Brantley Tillman 1004 Wake Forest Rd Raleigh NC 27604 https./lv .sosnc.gov/online_ services/search/Business_Registration_Results 1/1 434,vzo cow DWQ USE ONLY Date Received Fee Paid Permit Number - cr-rr fizzy SEP 0 5 2008 State of North Carolina Department of Environment and Natural Resources DA rp` W � nZ0 Division of Water Quality 9..r U' �''ar+' he : e l.�,d' STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Nags Head Partners, LLC 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): C. Brantley Tillman, Manager / Member 3. Mailing Address for person listed in item 2 above: 1648E North Market Drive Phone: (919 ) 872-5702 Email:commprop2@intrex.com State:NC Zip:27609 Fax: ( ) 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): The Shoppes at 10.5 5. Location of Project (street address): Project is located in Nags Head on the east side of U.S. 158 approximately 300' south of the intx of US 158 and City:Nags Head County:Dare Zip:27959 6. Directions to project (from nearest major intersection): Project is located in Nags Head orf the east side of U.S. 158 approximately 300' south of the intx of US 158 and 7. Latitude:35° 59' 03.53" N Longitude:75° 38' 35.61" W of project 8. Contact person who can answer questions about the project: Name:David A. Deel, P.E. Telephone Number: (252 ) 261-3300 Eniail:dadeel@quible.com IL PERMIT INFORMATION: 1. Specify whether project is (check one): /1 ❑Renewal ❑Modification Form SWU-101 Version 03.27.08 Page 1 ol'4 2. '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 ®High Density ❑Redevelop []General Permit []Universal SMP ❑Other 4. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Stormwater III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project. Stormwater will be captured and infiltrated in a series of infiltration trenches and infiltration basins. 2. Stormwater runoff from this project drains to the Pasquotank River basin. 3. Total Property Area: 10.47 acres 4. Total Wetlands Area: 0 acres 5. 100' Wide Strip of Wetland Area: n/a acres (not applicable if no Wetlands exist on site) 6. Total Project Area**:10.47 acres 7. Project Built Upon Area: 8. How many drainage areas does the project have?3 9. 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. For high density projects, complete the table with one drainage area for each eneineered stormwater device. Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name Stream Class & Index No. Total Drainage Area (sf) On -site Drainage Area (sf) - See A ii eLl el Table Off -site Drainage Area (sf) Existing Impervious* Area (sf) Proposed Impervious*Area (sf) %, Impervious* Area (total) Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings (sf) On -site Streets (sf) On -site Parking (sf) On -site Sidewalks (sf) _See A J a k le _ Other on -site (sf) Off -site (sf) Total (sf): Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidervalks, gravel areas, etc. **Total project area shall be calculated based on the current policy regarding inclusiml of mretlands in the built upon area percentage calculat ion. This is the area used to calculate percent project built upon area (BLIA). Form SWU-101 Version 03.27.08 Page 2 of 4 10. 'How was the off -site impervious area listed above derived?AutoCAD Area Routine IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the followmg 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 lot must be provided as an attachment. Forms can be downloaded from http://h2o.enr.state.nc.us/su/bmp forms.htm - deed restrictions. Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required in the above form, that the covenants will be binding on all parties and persons claiming under 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 stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Forms can be downloaded from ham://h2o.enr.state.nc.us/su/bml2 forms.htm. Form SW401-Low Density Form SW401-Curb Outlet System Form SW401-Off-Site System Form SW401-Wet Detention Basin Form SW401-Infiltration Basin Form SW401-Infiltration Trench Form SW401-Bioretention Cell Form SW401-Level Spreader Form SW401-Wetland Form SW401-Grassed Swale Form SW401-Sand Filter Form SW401-Permeable Pavement Low Density Supplement Curb Outlet System Supplement Off -Site System Supplement Wet Detention Basin Supplement Infiltration Basin Supplement Underground Infiltration Trench Supplement Bioretention Cell Supplement Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Constructed Wetland Supplement Grassed Swale Supplement Sand Filter Supplement Permeable Pavement Supplement Form SWU-101 Version 03.27.08 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 Office. (Appropriate office may be found by locating project on the interactive online map at hup://h2o.enr.state.ne.us/su/msi mans.htm) 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. � Initials • Original and one copy of the Stormt rAwater Management Permit Application Form f) • Original and one copy of the Deed Restrictions & Protective Covenants Form (if DA 1) required as per Part IV above) • Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP nAD • Permit application processing fee of $505 (Express: 54,000 for HD, $2,000 for LD) payable to NCDENR OAT) • Calculations & detailed narrative description of stormwater treatment/management nA p • Copy of any applicable soils report I1A n • Two copies of plans and specifications (sealed, signed & dated), including: ngf� - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & 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 - Vegetated buffers (where required) VIL 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. (ex. designing engineer or firm) Designated agent (individual or firm):Ouible & Associates, P.C. Mailing Address:P.O. Drawer 870 City:Kitty Hawk State:NC Zip:27949 Phone: (252 ) 261-3300 Fax: (252 ) 261-1260 Email:dadeel@quible.com Vlll. APPLICANT'S CERTIFICATION I, (print or type narne of person listed in General Information, item 2) C. Brantley Tillman, Manager Nags Head Partners LLC certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be eco ed, and that the proposed project complies with the requirements of 15A NCAC 2H .10 0. (� u Signatum Date: 9 Fonn SWU-101 Version 03.27.09 Pa,_e 4 of Basin Information Drainage Area I Drainage Area TI Drainage Area T2 Receiving Stream Name Atlantic Ocean Atlantic Ocean Atlantic Ocean Receiving Stream Class & Index No. SB 99-(7) SB 99-(7) SB 99-(7) Total Drainage Area (sl) 284,012 sf 4,800 sf 55,325 sf On -site Drainage Area (sf) 284,012 sf 4,800 sf 55,325 sf Off -site Drainage Area (so 0 sf 0 sf 0 sf Existing Impervious* Area (sf) 0 sf 0 sf 0 sf Proposed Impervious*Area (st) 202,711 sf 4,800 sf 55,325 sf % Imp'ervious* Area (total) 71.4% 100% 100% Impervious* Surface Area Drainage Area 1 Drainage Area Tl Drainage Area T2 On -site Buildings (st) 67,378 sf On -site Asphalt & Conc. (sf) 135,333 sf - - On -site Turfstone (sf) - 4,800 sf 55,325 sf Other on -site (s1) - - - Off -site (sf) - - - Total: 202,711 sf Total: 4,800 sf Total: 55,325 sf RECFEVED SEP 0 5 2008 Permit Number: (to be provided by DWQ) Dramage Area Number: Infiltration Basin Operation and Maintenance Agreement N/ L NO�.Y-H19ARL) I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment load to the infiltration basin. — Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the vegetation. — The vegetation in and around the basin will be maintained at a height of approximately six inches. After the infiltration basin is established, it will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to infiltration basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. The inlet device: pipe or The pipe is clogged (if Unclog the pipe. Dispose of the Swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Form SW401-Infiltration Basin O&M-Rev3 Pace 1 of 3 BMP element: The main treatment area The embankment The outlet device The receiving water Potential problem: Sediment has accumulated and reduced the depth to 75% of the original design depth. Erosion has occurred or riprap is displaced. Weeds are present. A visible layer of sediment has accumulated. Water is standing more th 5 days after a storm event. Weeds and noxious plants are growing in the main treatment area. Shrubs or trees have started to grow on the embankment. An annual inspection by an appropriate professional shows that the embankment needs repair. Clogging has occurred The outlet device is damagec Erosion or other signs of damage have occurred at the outlet. Search for the source of the sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Remove the weeds, preferably by hand. If pesticides are used, wipe them on the plants rather than Search for the source of the sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Replace any media that was removed in the process. Revegetate disturbed areas Replace the top few inches of filter media and see if this corrects the standing water problem. If so, revegetate immediately. If not, consult an appropriate professional for a more extensive repair. Remove the plants by hand or by wiping them with pesticide (do not Remove shrubs or trees Make all needed repairs. Clean out the outlet device. Dispose of the sediment off -site. Repair or replace the outlet device. Contact the NC Division of Water Quality 401 Oversight Unit at 919- 733-1786. Form SW40 I -Infiltration Basin O&M-Rev.3 Page 2 of 3 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the 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. Project name:The Shoppes at 10.5 BMP drainage area number: Print name:C. Brantley Tillman Title:Manager, Nags Head Partners, LLC Address:1648E North Market Drive. Raleigh, NC 27609 Note: The legally responsible party should not be a homeowners association unless more than 50% of the Tots have been sold and a resident of the subdivision has been named the president. 1, < eanH , c w W oolavd , a Notary Public for the State of NC County of � eu LL or } do hereby certify that C I�ra4lf±l T %lman personally appeared before me this 3 day of . Sepf ood , and acknowledge the due execution of the forgoing infiltration basin maintenance requirements. Witness my hand and official seal, OT ARI SEAL My commission expires !0 — / - 09 Form SW401-Infiltration Basin O&M-Rev.3 PaV 3 of 3 r" Ct', r'_.lt bEP G 5 ZOW Permit Number: (to be proWded bi, DWQ) Drainage Area Number: Infiltration Trench Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — The drainage area of the infiltration trench will be carefully managed to reduce the sediment load to the sand filter. — The water level in the monitoring wells will be recorded once a month and after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). The infiltration trench will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The grass filter strip or Areas of bare soil and/or Regrade the soil if necessary to other pretreatment area erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Sediment has accumulated to Search for the source of the a depth of greater than six sediment and remedy the problem if inches. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. The flow diversion The structure is clogged. Unclog the conveyance and dispose structure (if applicable) of any sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. Form SW401-Infiltration Trench O&M-Rev3 Page 1 of 3 BMP element: Potentialproblem: How I will remediate theproblem: The trench Water is pending on the Remove the accumulated sediment surface for more than 24 from the infiltration system and hours after a storm. dispose in a location that will not impact a stream or the BMP. The depth in the trench is Remove the accumulated sediment reduced to 750% of the original from the infiltration system and design depth. dispose in a location that will not impact a stream or the BMP. Grass or other plants are Remove the plants, preferably by growing on the surface of the hand. If pesticide is used, wipe it on trench. the plants rather than spraying. The observation well(s) The water table is within one Contact the DWQ Stormwater Unit foot of the bottom of the immediately at 919-733-5083. system for a period of three consecutive months. The outflow pipe is clogged. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. The outflow pipe is damaged. Re air or replace the pipe. The emergency overflow Erosion or other signs of The emergency overflow berm will berm damage have occurred at the be repaired or replaced if beyond outlet. repair. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Fonn SW401-Infiltration Trench O&M-Rev.3 Page 2 of 3 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the 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. Project name:The Shoppes at 10.5 BMP drainage area number:T 1 and T2 Print name:C. Brantley Tillman Title:Manager, Nags Head Partners, LLC Address: 1648E North Market Drive, Raleigh, NC, 27609 Date: 4 4 Z � (') L 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, C eO nn r'e a Notary Public for the State of � County of 13 e2u-w1 > , do hereby certify that man personally appeared before me this 3 day of _i{ 00 , and acknowledge the due execution of the forgoing infiltration trench maintenance requirements. Witness my hand and official seal, T �P�N\ 0 A ..�9GoR B p0 e' SEAL ��e2ld My commission expires -�-09 Form SW401-Infiltration Trench O&M-Rev.3 Page 3 of 3 RE& WED SEP 0 � 'LOOS Permeable Pavement DVVQ-SPQR® Permit Number: (to be provided by DWQ) Drainage Area / Lot Number: Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important operation and maintenance procedures: — Stable groundcover will be maintained in the drainage area to reduce the sediment load to the permeable pavement. — The area around the perimeter of the permeable pavement will be stabilized and mowed, with clippings removed. — Any weeds that grow in the permeable pavement will be sprayed with pesticide immediately. Weeds will not be pulled, since this could damage the fill media. — Once a year, the permeable pavement surface will be vacuum swept. — At no time shall wet sweeping (moistening followed by sweeping) be allowed as a means of maintenance. — There shall be no repair or treatment of Permeable Pavement surfaces with other types of pavement surfaces. All repairs to Permeable Pavement surfaces must be accomplished utilizing permeable pavement which meets the original pavement specifications. — Concentrated runoff from roof drains, piping, swales or other point sources, directly onto the permeable pavement surface shall not be allowed. These areas must be diverted away from the permeable pavement. Initial Inspection: Permeable Pavements shall be inspected monthly for the first three months for the following: BMP element: Potentialproblem: How to remediate theproblem: The perimeter of Areas of bare soil and/or In the event that rutting or failure of the groundcover the permeable erosive gullies have occurs. the eroded area shall be repaired immediately pavement formed. and permanent groundcover re-established. Appropriate temporary Erosion Control measures (such as silt fence) shall be installed in the affected area during the establishment of permanent groundcover, and any impacted area of permeable pavement is to he cleaned via vacuum sweeping. The surface of the Rutting / uneven This indicates inadequate compaction of the pavement permeable settlement base / sub -base. If rutting or uneven settlement on the pavement order of/x inch or greater occurs. permeable pavement shall be removed and base / sub -base re -compacted, smoothed, and permeable pavement shall then be re- installed. Base and sub -base compaction shall be monitored by a licensed geotechnical engineer to ensure that infiltration capacity of base and sub -base are not compromised by compaction and smoothing processes. The pavement does not Vacuum sweep the pavement. If the pavement still dewater between storms. does not dewater, consult a professional. or water is running off. Form SW401-Permeable Pavement O&M-Rev3 Page I of 3 Permit Number: (m be provided by DWQ) Drainage Area / Lot Number: The permeable pavement will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How to remediate theproblem: The perimeter of the Areas of bare soil and/or erosive Regrade the soil if necessary to remove permeable pavement gullies have formed. the Bully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of 3 to 6 long. inches (remove clippings). The surface of the Trash/debris is present. Remove the trash/debris. permeable pavement Weeds are growing on the Do not pull the weeds (may pull out surface of the permeable media as well) Spray them with pavement. pesticide. Sediment is present on the Vacuum sweep the pavement. surface. The structure is deteriorating or Consult an appropriate professional. damaged. Damaged areas of the pavement shall be removed and repaired. The pavement does not dewater Vacuum sweep the pavement. If the between storms. pavement still does not dewater. consuh a professional. Permanently clogged pavement shall he removed and repaired. Form SW401-Permeable Pavement O&M-Rev.3 Page 2 of 3 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the 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. Project name:The Shoppes at 10.5 BMP drainage area or lot ntanber:T I and T2 Print name:C. Brantley Tillman Title:Manager, Nags Head Partners, LLC Address: 1648E North Market Drive, Raleigh NC 27609 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. 1, CJPQnnit; W Weo la,-d , a Notary Public for the State of NC , County of -'Bpa" Or'f , do hereby certify that C (� VOnf)er t 71 It Mar, personally appeared before me this 3 day of dDaB , and acknowledge the due execution of the forgoing permeable pavement maintenance requirements. Witness my hand and official seal, . ...... SEAL z to 2 2s ., FR B 4&P My commission 4�--Va"� w. WOI-4J -/-09 Form SW401-Permeable Pavement O&M-Rev.3 Page 3 of 3 NCDENR North Carolina Department of Environment and Natural Resources Request for Express Permit Review For DENR Use ONLY c Reviewer_ Submit. Time Confirm: FILL-IN all the information below and CHECK the Permits) you are requesting for express review. FAX or Email the completed form to Express Coordinator along with a completed DETAILED narrative, site plan IPDF file) and vicinity map /same items expected in the application package of the project location. Please include this form in the application package. • Asheville Region -Alison Davidson 828-296-4698;alison.davidson@ncmail.net • Fayetteville or Raleigh Region -David Lee 919-791-4203, david.lee@ncmail.net • Mooresville & -Patrick Grogan 704-663.3772 or patrick.grogan@ncmail.net • Washington Region -Lyn Hardison 252-946-9215 or lyn.hardison@ncmail.net • Wilmington Region -Janet Russell910-350.2004 orjanet.russell@ncmail.net NOTE. Project application received after 12 noon will be stamped in the following workday Vv Project Name: THE SHOPPES AT 10.5 County: DARE Applicant: C. BRANTLEY TILLMAN Company: NAGS HEAD PARTNERS LLC Address: 1648E NORTH MARKET DRIVECity: RALEIGH, State: NC Zip: 27609 Phone:919-872-5702 Fax: Email: commprop2@intrex.com Project Drains into water classified SB (for classification see - http://h2o.enr.state.nc.us/bims/repoNs/reportsWB,htmi) Project Located in PASQUOTANK River Basin. Is project draining to class ORW waters? N, within lb mile and draining to class SA waters N, or within 1 mile and draining to class HOW waters? N Engineer/Consultant: DAVID A. DEEL, P.E. Company: QUIBLE & ASSOCIATES P.C. Address: P.O. DRAWER 870 City: KILL DEVIL HILLS, State: NC Zip: 27949 ������� Phone: 252-261-3300 Fax::252-261-1260 Email: dadeel@Ouible.com (Check all that apply) S E P U 5 7'iilit ❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER: _ NC DENR ❑ Stream Origin Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions ® State Stormwater ❑ General ❑ SFR, ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Low Density ❑ Low Density -Curb & Gutter _ It Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)] ❑ High Density -Detention Pond _ # Treatment Systems ® High Density -Infiltration 3 (#Treatment Systems ❑ High Density -Bio-Retention _ # Treatment Systems ❑ High Density—Stormwater Wetlands _ # Treatment Systems ElHigh Density -Other _,# Treatment Systems ElMODIFICATION SW _ (Provide permit #) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed.(CK # (for DENR use)) WETLANDS QUESTIONS MUST BE ADDRESSED BELOW H Wetlands (401): Check all that apply Wetlands on Site ❑ Yes ❑ No Wetlands Delineation has been completed: ❑ Yes ❑ No US ACOE Approval of Delineation completed: ❑ Yes ❑ No 404 Application in Process w/ US ACOE: ❑ Yes ❑ No Permit Received from US ACOE ❑ Yes ❑ No Isolated wetland on Property ❑ Yes ❑ No Buffer Impacts: ❑ No ❑ YES: acre(s) Minor Variance: ❑ No ❑ YES Major General Variance ❑ No ❑ YES 401 Application required: ❑Yes ❑ No If YES, ❑ Regular Perennial, Blue line stream, etc on site ❑ yes ❑ No For DENR use only Fee Split for multiple permits: (Check #L7-7 LI 1 TM.1 Ca. A.,,.,,.... C 1/� SUBMITTAL DATES Fee W SUBMITTAL DATES Fee CAMA S Variance (❑ Mai; ❑ Min $ SW (❑af6, ❑ LD, ❑ Gen) $ Q 401: $ LDS S Stream Deter,_ $ NCDENR EXPRESS January 2008 Quibie 9uible & Associates, P.C. ENGINEERING • ENVIRONMENTAL SCIENCES • PLANNING • SUWEVING SINCE 1959 September 2, 2008 Mr. Samir Dumpor NCDENR Division of Water Quality 943 Washington Square Mall Washington, North Carolina 27889 Re: The Shoppes at 10.5- Nags Head High Density Stormwater Permit Application Fast -Track Application Dear Mr. Dmmpor: 2119- i:= FlO SEP 0 5 Z006 P.O Drower870 Krtry Howk NC 27949 Phone: 252-261-3300 Fax 252-261-1260 PRINCIPALS Sean C Boyle. P E Joseph S LaI CEP. Eduordo J. VoldMeso. P E. ASSOCIATES Joseph J Anlout P E. KwhenneC Morchello, P L 5 On Behalf of Nags Head Partners, LLC, Quible and Associates, P.C. hereby submits for review and approval a High Density Stormwater Management Permit Application package for The Shoppes at 10.5 retail group development in the Town of Nags Head. The following items are included and shall be considered part of this submittal package: I. Review Fee Check for $4000.00 2. Two (2) copies of the Stormwater Management Permit Application Form w/one (1) copy of the Appropriate Supplements 3. Stormwater Management Plan Narrative and Calculations 4. Two (2) copies of Plan Sheets 1, 2, 5, 6, 7, 8, & I I If you have any questions, or require any additional information, please do not hesitate to contact me at (252) 261-3300. Sincerely, Q,uible & As: iciates P.C. �d David A. Dee], P.E. enc: as stated WATE 0 � —.y Mr. C. Brantley Tillman Nags Head Partners, LLC 1648 E. North Market Drive Raleigh, NC 27609 Dear Mr. Tillman: Michael F Easley, Governor '� William G Ross Jr., Secretary North Carolina Department of Environment and Natural Resources September 18, 2008 Subject: Stormwater Permit No. SW7080904 The Shoppes at 10.5 High Density Project Dare County Coleen H. Sullins, Director Division of Water Quality The Washington Regional Office received a complete Stormwater Management Permit Application for The Shoppes at 10.5 on September 5, 2008. 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. SW7080904 dated September 18, 2008, for the construction of the subject project. This permit shall be effective from the date of issuance until September 18, 2018, 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 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, 6714 Mail Service Center, Raleigh, NC 27699-6714. 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 Samir Dumpor, or me at (252) 946-6481. incer ly, Al Hodg Regional Supervisor Surface Water Protection Section AH/sd: J:\WPDATA\WQS\Samir - State SW\Permits - Infiltration cc: David Deel, PE Quible & Associates, P.C. D,are County Building Inspections shington Regional Office Central Files North Carolina Division of Water Quality Internet vi tiv.ncwateroualityorg 7��On..LLIe,7, 1 943 Washington Square Mall Phone (252) 946-6481 1 V Ol CarOlina Washington, NC 27889 Fax (252)946-9215 aF�y+if/ y An Equal OpportunitylAffrmatrve Action Employer -50%Recycledll0% Post Consumer Paper l/y146 L[dss�/ State Stormwater Management Systems Permit No. SW7080904 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 Nags Head Partners, LLC The Shoppes at 10.5 Dare County FOR THE construction, operation and maintenance of an infiltration basin and two infiltration trenches 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 September 18, 2018, 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. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 262,836 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. Page 2 of 8 91 State Stormwater Management Systems Permit No. SW7080904 The following design criteria have been provided in the infiltration basin and must be maintained at design condition: a. Drainage Area, acres: 6.52 b. Total Impervious Surfaces, ftZ: 202,711 C. Design Storm, inches: 1.0 d. Basin Depth, feet: 1.50 e. Bottom Elevation, FMSL: 8.00 f. Bottom Surface Area, ftz: 39,922 g. Permitted Storage Volume, ft3: 67,750 h. Type of Soil: Corolla, Duckston fine sands and Newhan-Corolla complex i. Expected Infiltration Rate, in/hr: 20 j. Seasonal High Water Table, FMSL: 6.00 k. Time to Draw Down, hours: 9 I. Receiving Stream/River Basin:Atlantic Ocean / Pasquatank River Basin M. Stream Index Number: 99-(7) n. Classification of Water Body: "SB" 7. The following design criteria have been provided in the infiltration trenches and must be maintained at design condition: Trench T1 Trench T2 a. Drainage Area, acres: 0.11 1.27 b. Total Impervious Surfaces, ft2: 4,800 55,325 C. Design Storm, inches: 1.0 d. Trench Dimensions, L x W x H, ft: 240x20x0.90 2,270x24.40x0.90 e. Bottom Elevation, FMSL: 10.60 9.30 f. Permitted Storage Volume, ft3: 1,728 19,917 g. Type of Soil: Corolla, Duckston fine sands and Newhan-Corolla complex h. Expected Infiltration Rate, in/hr: 20 i. Seasonal High Water Table, FMSL: 6.00 j. Time to Draw Down, hours: 2.16 2.16 k. Receiving Stream/River Basin:Atlantic Ocean / Pasquatank River Basin Page 3 of 8 State Stormwater Management Systems Permit No. SW7080904 Stream Index Number: M. Classification of Water Body: II. SCHEDULE OF COMPLIANCE 99-(7) ONN 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 bypass structure, infiltration media, flow spreader, catch basins, piping and vegetated filter. g. A clear access path to the bypass 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. 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. 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. 7. 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. 8. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 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. Page 4 of 8 State Stormwater Management Systems Permit No. SW7080904 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, lease 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. 10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 12. 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. III. 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. 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) having 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. Page 5 of 8 State Stormwater Management Systems Permit No. SW7080904 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. 10. This permit shall be effective from the date of issuance until September 18, 2018. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. Permit issued this the 18th day of September, 2008. ORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION y for Division of Water Quality By Authority of the Environmental Management Commission Permit No. SW7080904 Page 6 of 8 oiaie awnnwaiei iwmidyemeni Oysiems Permit No. SW7080904 The Shoppes at 10.5 Stormwater Permit No. SW7080904 Dare County Designer's Certification I, , 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 Page 7 of 8 State Stormwater Management Systems Permit No. SW7080904 Certification Requirements: 1. 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. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The bypass structure weir elevation is per the approved plan. 6. The bypass structure is located per the approved plans. 7. A Trash Rack is provided on the bypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Dare County Building Inspections Page 8 of 8 Permit No. �� �(,�e �/(' �,�}r 1p'�%� �p�a�p (to be provided by DWQ) r aE'm `V"I�S G 17'� n opf wATE,q r o ENT NCDENR SEP 0 5 2008 STORMWATER 401 CERTlWq IFICATION APPL CIATIONFORM APPLICATION FORM Deny 1/��,p INFILTRATION TRENCH SUPPLEMENT v �YY R® This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. I: PROJECT INFORMATION Project name The Shoppes at 10.5 Contact person David A. Deel Phone number (252)261-3300 Date 8/19/2008 Drainage area number T2 Site Characteristic Drainage area Impervious area Percent impervious Design rainfall depth Peak Flow Calculations 1-yr, 24-hr runoff depth 1-yr, 24-hr Intensity Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak flow control Storage Volume: Non -SR Waters Minimum volume required Volume provided Storage Volume: SR Waters 1-yr, 24-hr rainfall depth Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Soils Report Summary Soil type Infiltration rate SHWT elevation Trench Design Parameters Drawdown time Perforated pipe diameter Perforated pipe length Number of laterals Stone type (a used) Stone void ratio Stone is free of fines? 55,325.00 ftz s5,325.00 f?✓T for 41.e porpola4et slor�Je Calculuiro•.�, iuvis>tone 100.0% % 6 cohs4iere4 /00°Jo rmpevvioU%6MeA t(ccovelJ aO 100 in %;4o11 fobe s(cr=je layer v.�Ml?rreafl,. in /hr ft3/sec 4,610.00 ft3 ✓ 19,917.00 rya OK for non -SR waters In it to I? it sands >20 in/hr 6.00 fmsl 0.09 days V/OK n/a in n/a it n/a Angular Washed 0.4 Y (Y or N) OK Form SW401-Infiltration Trench-Rev.2 Parts 1. & IL Design Summary, Page 1 of 2 Permit No. (to be provided by DWQ) Trench Elevations Bottom elevation 9.30 fmsl OK Storage/overflow elevation 10.20 first Top elevation 10.50 fmsl Trench Dimensions Length (long dimension) 2,270.00 ft Width (short dimension) 24.40 It Height (depth) 0.90 ft OK Additional Information Total runoff volume captured by trench 5.49 ac-in Maximum of 2 acre -inches allowed - Off erllzdd 51ero jo 12e1'd Length of vegetative filter for overflow n/a ft OK Per Town of Nip Oeoc{ Lod&• 510role Number of observation wells n/a OK 15ai3{rfbaknau,d� zzclit(erc-t Distance to structure 46.00 ft OK nFtl.lrr c oroo {(�f arr Seei,L e{ Distance from surface waters n/a it OK Distance from water supplywell(s) n/a it OK supplor `+. Separation from impervious soil layer n/a it OK Depth of naturally occuring soil above SHWT 3.30 ft OK Bottom covered with 4-in of clean sand? Y (Y or N) OK Proposed drainage easement provided? n/a (Y or N) OK Capures all runoff at ultimate build -out? Y (Y or N) OK Bypass provided for larger storms? Y (Y or N) OK Trench wrapped with geotextile fabric? Y (Y or N) OK Pretreatment device provided Y Form SW401-Infiltration Trench-Rev.2 Parts I. & 11 Design Summary, Page 2 of 2 Permit (to be provided by DWQ) Ilf:`REQUIRED.ITEMSCHECKLIST-CHECKLIST�.r ":= ".'.:.� "-" =_ ;4 Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to Indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. ,Dan 2 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Trench dimensions, - Pretreatment system, - High Flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. ^^nn nn z, Z, A 2. Partial plan (1" = 30' or larger) and details for the infiltration trench showing: Bypass structure, Maintenance access, Basin bottom dimensions, Basin cross-section with benchmark for sediment cleanout, Flow distribution detail for inflow, Vegetated filter, and Pretreatment device. DA P z, R 3. Section view of the infiltration basin (1" = 20' or larger) showing: Pretreatment and treatment areas, and inn No,ralvL Inlet and outlet structures. N D a� 4. A table of elevations, areas, incremental volumes & accumulated volumes to verity the volume provided. Noyratbe DA 0 ar + 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. �Fl 6. A construction sequence that shows how the infitlration basin will be protected from sediment until the entire drainage area is stabilized. Norta�t/�' -DIV_ cne rl' 7. The supporting calculations. PPfM1f �. 1� Pia 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. _N/A_ 9. A copy of the deed restrictions (if required) Form SW40 I Anfiltration Trench-Rev.2 Part III. Required Items Checklist, Page 1 of 1 .i r� r� ^ ,7 Permit No. �� EC���//ED Ito be provided by OWQ) 3w N "� �a �/ 020E WArF, O T SEP O F 2008STORMWATER MANAGEMENT PERMIT APPLICATION FORM o� NCDENR 401 CERTIFICATION APPLICATION FORM ®WQ_WAROINFILTRATION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 1/1) must be printed, filled out and submitted along with all of the required information. I: PROJECT INFORMATION = _ - _ 3. ': -_ .trr_. =r r• Project Name The Shoppes at 10.5 Contact Person David A. Deal, P.E. Phone Number j252)261-3300 Date B/19/200B Drainage Area Number 1 II. DESIGN INFORMATION, Site Characteristics Drainage area 284,012.00 ft' Impervious area 202,711.00 ff i/ Percent Impervious 0.71 % Design rainfall depth 1.00 in Peak Flow Calculations 1-yr, 24-hr runoff depth in 1-yr, 24-hr Intensity In/hr Pre -development 1-yr, 24-hr runoff volume Osec Post -development 1-yr, 24-hr runoff volume ft'/sec Pre/Post 1-yr, 24-hr peak flow control ft'/sec Storage Volume: Non -SR Waters Minimum design volume required 20,917.00 rya Design volume provided 67,750.00 ft' OK for non -SR waters Storage Volume: SR Waters 1-yr, 24-hr rainfall depth Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Soils Report Summary Soil type Infiltration rate SHWT elevation Basin Design Parameters Drawdown time Basin side slopes Basin bottom elevation Storage elevation Storage SA Top elevation Basin Bottom Dimensions Basin length Basin width Bottom SA in fta ft 3 W ft, sands >20 ra / 6.00 fmsl V 0.38 days OK 3.00 :1 OK 8.00 fmsl t/ OK 9.50 fmsl t/ 52,713 00 it 10.10 fmsl 757.00 ft - Total 52.70 it -A✓ero.�8 9,9 322.00 ftz Farm SW401-infi traban Basm-Rev.2 Pans I. 8 11 Design Summary, Page 1 of 2 rr l FA Permit (to be provided by OWO) Additional Information Total runoff volume captured by basin 1866 ac-in Length of vegetative filter for overflow n/a it Distance to structure 18.00 it Distance from surface waters n/a it Distance from water supply well(s) n1a it Separation from impervious soil layer n/a it Naturally occuring soil above shwl 200 it Bottom covered with 4-in of clean sand? y (Y or N) Proposed drainage easement provided? n/a (Y or N) Capures all runoff at ultimate build -out? y (Y or N) Bypass provided for larger storms y (Y or N) Pretreatment device provided n/a Maximum of 2 acre -inches allowed E ovet612da Sa3I� S Pe,- OK OK TOwn Oq Nall jjeo i requlee,.&,13. OK 5loraq'g IS CJi5}lii?uLVx( C(MV"J OK 6 3�pJpmle 1,{c�fCOMEG1 d,4 OK bo.61,5, OK OK OK OK OK Form SW401-Infiltration Basm-Rev 2 Parts 18 11 Design Summary, Page 2 of 2 Permit (to be provided by DWD) III.?REQUIREDITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), Nair i t'' , -Delineated drainage basins (include Rational C coefficient per basin), NWr&x - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. 2, %, 9 2. Partial plan (1"= 30' or larger) and details for the infiltration basin showing: - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and ff�', Noir�lt + - Inlet and outlet structures. 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. 6. A construction sequence that shows how the infittration basin will be protected from sediment until the µurra�t�� entire drainage area is stabilized. CQ r -,a ',,; 7. The supporting calculations. 1pefkI AFP lei 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. _UPSD__ N /A 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basm-Rev.2 Page 1 of 1 Part III, Required Items Checklist, Page 1 of 1 r Permit LT WA NCDEN AEGM��EM (to be provided by DWO) O`er W AT R SEP 0 5 2008 STORMWATER MANAGEMENT PERMIT APPLICATION FORM r o 401 CERTIFICATION APPLICATION FORM DW&WAR0 INFILTRATION TRENCH SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. II_ PflIJJtt: l'INF,VHMAI ION �;h',_• -` a . - -` - ' - _ - - - Project name The Shoppes at 10 5 Contact person David A. Deal Phone number (252)261-3300 Date 8/19/2008 Drainage area number T1 IIi,DESIGN;INFORMATIONR,.' '-• t _' .'` "_ " _` _ } Site Characteristics Drainage area Impervious area 11,800.00 4,800.00 ft� ft—T I For ike Puvf+ose Or 3 fdYcr]e Cal cufaflor.;r iVYFS1One Percent impervious 100.0% % l5roK Lie/eJ lee7 IMpervlOUS4 conUNj5 Design rainfall depth 1.00 in all ral,iaj) 4o f 8 3!o/a�e �ayEY undefJ�4fi. Peak Flow Calculations 1-yr, 24-hr runoff depth in 1-yr, 24-hr intensity in/hr Pre -development 1-yr, 24-hr peak flow ft3/sec Post -development 1-yr, 24-hr peak flow ft'fsec Pre/Post 1-yr, 24-hr peak flow control ft3/sec Storage Volume: Non -SR Waters Minimum volume required 400.00 it Volume provided 1,72800 ft3 1/ OK for non -SR waters Storage Volume: SR Waters 1-yr, 24-hr rainfall depth in Pre -development 1-yr, 24-hr runoff ft3 Post -development 1-yr, 24-hr runoff ft3 Minimum volume required ft3 Volume provided it Soils Report Summary Soil type Infiltration rate SHWT elevation Trench Design Parameters Drawdown time Perforated pipe diameter Perforated pipe length Number of laterals Stone type (If used) Stone void ratio Stone is free of fines? sands >20 in/hr 6.00 fmsl I/ 0.09 days OK n/a in n/a it n/a Angular Washed 0.4 Y (Y or N) OK Form SW401-Infiltration Trench -Rev 2 Pads I & 11 Design Summary, Page 1 of 2 Permit (to be prowrded by DWO) Trench Elevations Bottom elevation 10.60 fmsl OK Storage/overflow elevation 11.50 fmsl Top elevation 11.80 fmsl Trench Dimensions Length (long dimension) 240.00 it Width (short dimension) 20.00 1t Height (depth) 0.90 ft OK Additional Information Total runoff volume captured by trench 0.48 ac-in OK Length of vegetative filter for overflow n/a It OK Number of observation wells n/a OK Distance to structure 5000 it OK Distance from surface waters n/a it OK Distance from water supplywell(s) n/a ft OK Separation from impervious soil layer n/a it OK Depth of naturally occuring soil above SHWT 4.60 it OK Bottom covered with 4-in of clean sand? Y (Y or N) OK Proposed drainage easement provided? n/a (Y or N) OK Capures all runoff at ultimate build -out? Y (Y or N) OK Bypass provided for larger storms? Y (Y or N) OK Trench wrapped with geotextile fabric? Y (Y or N) OK Pretreatment device provided Y Form SW401-Infiltration Trench -Rev 2 Parts I. a If. Design Summary, Page 2 of 2 i' Permit (to be provided by DWO) 111. =REQUIRED ITEMS CHECKLIST,:. Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. DA D 2 1. Plans (1" - 50' or larger) of the entire site showing: Design at ultimate build -out, Off -site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Trench dimensions, Pretreatment system, High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. VAQ 2. Partial plan (1" = 30' or larger) and details for the infiltration trench showing: Bypass structure, Maintenance access, Basin bottom dimensions, Basin cross-section with benchmark for sediment cleanout, Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. 3. Section view of the infiltration basin (1" = 20' or larger) showing: ry Rrraiu/ I�o3�hv)i,[ I II jdartailr2 I l rtcr' Alive. pe kd, —�-L— Pretreatment and treatment areas, and Inlet and outlet structures. 4. A table of elevations, areas, incremental volumes & accumulated volumes to verity the volume provided. 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWO, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. 6. A construction sequence that shows how the infitlration basin will be protected from sediment until the entire drainage area Is stabilized. 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Trench-Rev.2 Part III. Required Items Checklist, Page 1 of 1