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Home My WebLink AboutSW7071002_HISTORICAL FILE_20210709STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. I SW 727/ DOC TYPE I ❑ CURRENT PERMIT ❑ APPROVED PLANS (HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD W24,d ROY COOPER Governor ELIZABETH S. BISER secretory BRIAN WRENN Director NORTH CAROLINA Environmental Quality July 9, 2021 Town of Kill Devil Hills Attention: Deborah Diaz, Town Manager 102 Town Hall Drive Kill Devil Hills, NC 27948 Subject: Stormwater Permit Renewal Stormwater Management Permit SV 7071002 Kill Devil Hills Public Works, Western Parcel Dare County Dear Ms. Diaz: A Division of Energy, Mineral, and Land Resources file review has determined that Stormwater Permit SW7071002 for a stormwater treatment system consisting of two infiltration basins to serve the Kill Devil Hills Public Works Western Parcel located at the western end of Veterans Drive in Kill Devil Hills, NC expires on December 31, 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. If you wish to maintain this permit, please submit a completed permit renewal application along with a $505.00 fee for permit renewal. Permit application forms for renewal can be found on our website at: https.//deq.ne.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 it is built. 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(o)ncdenr.gov. Sincerely, Roger K. Thorpe Environmental Engineer North Carolina Department of Environmental Quality Division of Energy. Mineral and Land Resources _ J! Washington Regional Offlre i 943 Washington Square Mall I Washington. North Carolina 27889 ��ygny 00 252.946 6481 STORMWATER CALCULATIONS for Kill Devil Hills Public Services Western Area Stormwater Drainage Area #1 (Rev. 01/14/08) em it ,IkAl"l, Drainage Area 144,740 sf = 3.32 ac JAN 17 2008 SURFACE AREA INFORMATION Ice reviom Surface C Value Aria C-A Buildings & Decks 1.00 0 0 Concrete Yards 0.95 69,940 66.443 Roadway 0.95 1,203 1,143 Roadway (off site) 0.95 0 0 Undeveloped Area 0.00 41.271 0 Total Impervious, Area lIZA14 67,586 Stormwater Management Areas, C Value Am C•A Infiltration Basin 1.00 32,326 32,326 Total Stormwater Managemeot Am 32,326 32,326 Total Contributing Am 144,740 99,912 ComposimC 069 ' Cownbuting Area 3 32 ac Infiltration Basin Characteristics Basin Store a Side Slore, Depth ft Volume left Infiltration Basin 1:4 1.2 35,728 Total 35,728 Swale Store a Side Slow Depth ft Volume c Na I0 Total I0 DWQ-WARO Infiltration •• I Surface Am (sr, Infiltration Rate in./hr lordtration Volume t Infiltration Basin 32,326 15.00 80,815 80,815 Total Stormwater Management 1" 1.5" 4.3" 5.0" Intensity (in.1hr) 0.5 075 2.15 2.50 Rmtoff(cfs) L15 1.72 4.93 5.73 2-How Rwmff Volmne (cf) 8,257 12r386 35,-!06 41,286 Basin Storage Volume (cf) 35,729 35,728 35,729 35,728 Basin/Swale Infiltmnon Volmne (cf) 80,815 90,815 80,815 80,815 Void Volmne Under Pond (cf) 0 0 0 0 Total Stonnwater Managed (cf) 116,503 116,543 116,543 116,543 Percent Retained 1411 % 941 % 328% 282 '- Slormwater fulling upon undeveloped areas with greater than two feet separation excluded from calculations due to the porosity of existing conditions • - based on two how infiltration rate. Prepared by Albemarle Associates, LTD 1/14/2008 0 wa G• s � 0 Permit No. SW 7 6 71062 (to be provdeo by owo) pp WArto i= STORMWATER MANAGEMENT PERMIT APPLICATION FORM O? oAG WDENR 401 CERTIFICATION APPLICATION FORM INFILTRATION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Pad I//) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project Name Kill Ded Hills Pudic Works, Western Parcel Contact Person John M. DeLucia, PE Phone Number 252,141-2113 Date 1/14/2008 Drainage Area Number 1 II. DESIGN INFORMATION Site Characteristics Drainage area 144,740.00 ft �+ ■9s 1� Impervious area 71,143.00 rye 12 Percent impervious 0.49 Design rainfall depth 1.0 in Peak Flow Calculations JAN 17 2008 Is prelpost control of the 1-yr 24-hr peak flow required? n (Y or N) 1-yr, 24-hr runoff in ®WQ-WfRO 1-yr,24-hrintensity irJhr Pre -development 1-yr, 24-hr runoff volume ft3/sec Post -development 1-yr, 24-hr runoff volume f "Isec Pre/Post 1-yr, 24-hr peak flow control fe/sec Storage Volume: Non -SR Waters Minimum design volume required 8,257 ft' Design volume provided 35,728 f? OK for non -SR waters Storage Volume: SR Waters 1-yr, 24-hr rainfall depth in Pre -development 1-yr, 24-hr runoff Ill Post -development 1-yr, 24-hr runoff ft Minimum volume required III Volume provided ftr Soils Report Summary $oil type NhC, DuE Infiltration rate 15.00 ,in/hr SHWT elevation 5.50 fmsl Basin Design Parameters Drawdown time 0.04 days OK Basin side slopes 4 :1 OK Basin bottom elevation 7.50 fmsl OK Storage elevation 8.70 fmsl Top elevation 9.00 fmsl Basin Bottom Dimensions Basin length varies it Basin width varies It Bottom SA 27,222 fl Form SW401-Irtrillmbon Bashi-Rev.1 Pans 1. & 11. Design Summary, Page 1 of 2 • )r :10H t�J . Permit No. 5 W 707 1 b()}- (to be Provided by DWO) Additional Infomratlon Total runoff volume raptured by basin 1.30 aG4n OK Length of vegetative fitter for overflow n/a it OK Distance to structure n/a it OK Distance from surface waters >1000 ft OK Distance from water supply well(s) 140 it OK Separafion from impervious soil layer >3 ft OK Naturally, occuringsoil above shwt 2 it OK Bottom covered with 44n of dean sand? y (Y or N) OK Recorded 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? n/a (Y or N) OK Pretreatment device provided Form SW401-Infiaretion easin-Rev.t Parts I. a II. Design Summery, Pepe 2 of 2 Permit No. (to be provided by DWQ) III. 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. InjtiaIs Pagel Plan Shee C3 Plans (1" - SY 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), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. 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 - Inlet and outlet structures. RECEI tl E® JAN 17 2008 DWQ-WARO 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. An assurance that the installed system will meet design specifications upon initial operation once the project is complete and the entire drainage area is stabilized. 7. A construction sequence that shows how the infitiration basin will be protected from sediment until the entire drainage area is stabilized. 8. The supporting calculations. 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. dr` 1" 7t 10. A copy of the deed restriction. Form SW401-Infiltration Basin-Rev.1 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1 .1 1 , t L ,. • . i, 1 STORMWATER CALCULATIONS for Kill Devil Hills Public Services Westem Area Stormwater Drainage Area #2 (Rev. 01114108) Drainage Area 87,739 sf - Lot ac SURFACE AREA INFORMATION Ira revions Surface C Value Am C•A Buildings & Decks Concrete Yards Gravel Roadway Undeveloped Area Total Impervious Area 1.00 0.95 0.80 0.00 0 10,060 27,697 43,598 8t,355 0 9,557 22,158 0 31,715 Stormwater Management Ams C Value Am C•A Infiltration Basin 2 Total Stormwater Management Area 1.00 6,384 6,384 6,394 6,384 Total Contributing Areal 87,739 38,099 Composue C 0.43 Conmbnin Area 201 ac Infiltration Basin Characteristics Basin Stone Side Slope Be tb IN Volume c Infiltration Basin 2 1:4 1.2 6,544 Total 6,544 Swale Storage Side Slone tit ft Volume W1 Na 1 0 Total 1 0 RECEIVED JAN 17 2008 ®WQ-WAR® tafdtntbn•• Surface Areas Infiltration Rate WAr inattention Volume(cfj Infiltration Basin 2 6,394 15,00 15,%0 Total 15,960 Stormwater Management 1^ 1.5^ 10. 5.0^ Intensity (in /hr) 0.5 075 2.15 250 Runoff(cfs) 0.44 0.66 188 2.19 2-Hon Runoff Volume (cf) 3,149 4,773 I3,539 15,743 6,544 6,544 6,544 6,544 Basin Storage Volume (cf) Basin/Swale Infiltration Volume (cf) 15,960 15,%0 15,960 15,960 Void Volume Under Pond (cf) 0 0 0 0 Total Stormwater Managed (cf) 22,504 22,504 22,504 22,504 Percent Retained 715% 476% 166% 143% •- Stormwater falling upon undeveloped areas with greater thin two feet separation excluded from calculations due to the porosity of existing conditions. • - based on two Iron infiltration rate Prepared by Albemarle Associates, LTD 1/142008 H I Permit No. S W-[0T 100 2` (to be provided by DWO) -P STORMWATER MANAGEMENT PERMIT APPLICATION FORM KDENR 401 CERTIFICATION APPLICATION FORM INFILTRATION BASIN SUPPLEMENT This form must be filled out, pnnted and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. INFORMATION Contact Person Phone Number Data Drainage Area Number 11140038 �F W^A TFN olqiii�I II. DESIGN INFORMATION Site Characteristics Drainage area 87,739.00 fe RECEIVED ECEI 1i ®p� Impervious area 37,757.00 fly 11� ED Percent impervious 0.43 Design rainfall depth 1.0 in JAN 17 2008 Peak Flow Calculations Is preipost control of the 1-yr 24-hr peak flow required? n (Y or N) , fl 1-yr, 24arr runoff depth in D y y1A/ Q-y y AR® 1-yr, 24-hr intensity in/hr Pre -development 1-yr, 24-hr runoff volume ft Post -development 1-yr, 24-hr runoff volume felsec PrelPost 1-yr, 24-hr peak flow control felsec Storage Volume: Non -SR Waters Minimum design volume required 3,145 to Design volume provided 6,544 fill OK for non -SR waters Storage Volume: SR Waters 1-yr, 24-hr rainfall depth in Pre -development 1-yr, 24-hr runoff ft, Post -development 1-yr, 24-hr runoff fe Minimum volume required ft' Volume provided fe Soils Report Summary Soil type NhC, DuE Infiltration rate 15.00 inmr SHWT elevation 5.50 fmsl Basin Design Parameters Drawdovm fime 0.04 days OK Basin side slopes 4 :1 OK Basin bottom elevation 7.50 frost OK Storage elevation 8.70 fmsl Top elevation 9.00 fmsl Basin Bottom Dimensions Basin length varies ft Basin width varies ft Bottom SA 4,524 fe Form SW401-Infiltration Basin -Rev 1 Parts I. a II. Design Summary, Page 1 of 2 u Permit No. S W 70*1100 6 (to be prodded by DWQ) Additional Information Total runoff volume captured by basin 0.24 acin OK Length of vegetative fitter for overflow nla fl OK Distance to structure rue fl OK Distance from surface waters >1200 It OK Distance from water supply well(s) 370 It OK Separation from impervious soil layer >3 ft OK Naturally occuring soil above strut 2 it OK Bottom covered with 44n of clean sand? y (Y or N) OK Recorded drainage easement provided? y (Y or N) OK Capures all runoff at ultimate build -Our? y (Y or N) OK Bypass provided for larger storms? We (Y or N) OK Pretreatment device provided n Form SW401-InfiRrstion Basin-Rev.1 Parts I. a II. Design Summery, Page 2 of 2 Permit (to be provided by DWQ) III. 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. Pagel Plan I Shpet yo, 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), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), - Overflow device, and /1 - Boundaries of drainage easement. 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 cieanout, - Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. 3. Section view of the infiltration basin (1' = 20' er larger) showing: - Pretreatment and treatment areas, and - 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. An assurance that the installed system will meet design specifications upon initial operation once the project is complete and the entire drainage area is stabilized. 7. A construction sequence that shows how the infidration basin will be protected from sediment until the entire drainage area is stabilized. 8. The supporting calculations. 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. 10. A copy of the deed restriction. Forth SW401-Infiltration Basin-Rev.t Page 3 of 3 Part III. Required Items Checklist, Page 3 of 3 Soils Report Kill Devil Hills Public Works, Western Parcel Veterans Drive Kill Devil Hills, Dare Co, NC RECEIVED 'rA44 �5 JAN 17 2000 DWQ-WARD A soil boring was performed on August 7, 2007 within the area of the proposed infiltration basin # 1 along the southern end of the project area with the following results: Depth T Re Color 0' — 44" Sandy Soil Tan 44" — 48" Sandy Soil Brown 48" — 60" Sandy Soil Brownish/Gray Water table approximately 50" below surface. Surface elevation - 9.0' Ij 0 Soils Narrative Kill Devil Hills Public Works, Western Parcel Veterans Drive Kill Devil Hills, Dare Co, NC RECEIVED JAN 17 2008 DWQ-WAR® The soil in the project area is mapped by the Soil Survey of Dare County (issued March 1992, Sheet 3), as Newhan-Corolla complex, 0 to 10 percent slopes (NhC), and Dune land, 2 to 40 percent slopes (DuE). The Newhan soil is characterized as excessively drained with rapid permeability. The seasonal high water table is 1.5 to 3.0 feet below the surface. The soil ranges from moderately acid to mildly alkaline. The seasonal high water table is more than 6 foot below the surface. The Corolla soil is moderately well drained or somewhat poorly drained and, above the water table, has very rapid permeability rates. It is also characterized as ranging from extremely acid to moderately alkaline. The seasonal high water table is 1.5 to 3.0 feet below the surface. This soil is subject to rare flooding. Dune land is devoid of vegetative cover and is subject to severe soil blowing and shifting. The water table is at a depth of more than 6 feet. The Newhan soil typically has a light brownish gray fine sand layer about 2 inches thick. The underlying material to a depth of 80 inches is gray sand. Duckston fine sand typically has a surface layer of 8 inches of fine sand. It is very light yellowish brown in the upper part and a very pale brown in the lower part. Corolla soil typically has a surface layer of dark grayish brown fine sand about 3 inches thick. The underlying material to a depth of 75 inches is sand. It is yellowish brown in the upper part, brown in the next part, and grayish brown in the lower part. Results of the soil boring investigation for the site show that tan, fine sand was found at a depth of 0" — 44", brown fine sand was found at a depth of 44" — 48", wet brownish gray fine sand was found at a depth of 44" — 48"and saturated brownish/gray fine sand was found at a depth of 48" — 54". The water table was located at a depth of approximately 50"-54" below ground, and the ground elevation was ap "' / i; Soil Borings Kill Devil Hills Public Works, Western Parcel Veterans Drive Kill Devil Hills, Dare County,NC Depth Basin 7 0" to 44" Tan,fine sand 44" to 48" Brown, fine sand 48" to 54" Wet, brownish/gray, fine sand 54" to 60" Saturated, brownish/gray, fine sand Soil Type Dune land Ex. Ground Elevation (ft. above MSL) 9.0 Depth to ESHWT (in) 54 ESHWT Elevation 4.5 Depth to Water table (in) 50 Estimated Water table Elevation (ft) 4.8 Prepared by Albemarle and Associates, Ltd. srcleQle n 8Y6ZZ ON'SII!H I!Aa0 II!N 960-L h4 (Z9Z) :xed 686E x09 O d L 2-LY4 (Z9Z) :auoyd 7S AelO Meg leant 9 L L [bulUU81d Puel - u! amnS - uuaau! u3 'dll `S3.LVlQOSSV 8 =W I '103f'08d 3H1 d0 V38V 0388fllS10 31-11 dO .111N101A 31-ll NI S36(llV3d ivan1VN MOHS Ol NOI1V1N3S38d3?3 01HdV80OHiHO NV SI ONIMVNO SIHl M N r I � d'I 3LV15 3� N I JY t e i iY VY ,-79-R VIIA w�y 1pa a 1.904Ydd N&--OUG3M s9X&OM Ol Mnd S"T71H ib as �ntx = HONI L Soil Map-0are County, North Carolina (Kill Devil Hills Public Works, Western Parcel) p a9row 439050 4391C0 439230 439320 439410 Q 7"} a' 1t«Y `Ay'�Sa x♦ '� g•¢��1( ie f 11 � �� 1••, .'7 f^. q � »tipi a3 .� � k � { Yeey� m„ �ry'u��d-IMx��'F�J. ..� :1 bt C in � ARd'♦" I r �„ 5ri1 (3r� } S �eJ3+�v �'g« it ( MY.W' 't"R'•- $ r ' fn k {A r+ y y . eE. •f. ♦ 'r 3,Y i awhd �i• I t i 'a` � Iti. /ki {gyp 4J J.1. u�,��"o-1 �9`M�'9 �f�l' N vq in r � �t Ji `me„µ` �' i y' k� w tk n'�" �53 d � ♦ 9i.,. 5_ M ,�yy+e4�+F''��,'�•r � 1 �..� �, n `e `�x iv F 1 4'»"".' Y i �r, r"' " "„ n t �'T MWf '�" �M,�"! { �r ,r"/ r �r,°(' e 9 » t♦"�' �qtq�� i1T' r � fit • � ° y� �-'�'t°�''�-+;�„" « 4 a y�KIy+ { { iT »+�� -` Fi'fF ♦e.,d. r _ » il: '� Rp;1u9P n ti✓'9U( b`��1�iS�� ...)�ywy y�j�+?�� k .� 1�� 1�kQ'��,�F �h"Y * �{ �/ 'h� �� ♦* .�.�,j� I'` a i=..l�i .� , '1 r My Y ' Y� ,I .s`r { yruY•ry Huif r .. y � • 436990 439050 439140 4392W 439320 439410 N Melen A 0 IS BO 80 270 f 0 150 300 000 900 eet Uy)at Natural Resources Web Soil Survey 2.0 iiM Conservation Service National Cooperative Soil Survey 11 /29/2007 Page 1 of 3 Document Detail Page 1 of 1 Client Dare County, NC Title: Barbara M. Gray Connected As: Unavailable Document Detail Instrument 2176260 Receipt #: Number. Document Code: DEED Recording Fee: $0.00 Recording Date: 11/18/1991 Excise Tax: $0.00 Recording Time: 08:OOA Land Xfer: $0.00 Number of Pages: null Book: 776 Document Date: N/A Page: 297 Grantor I Grantee DARE COUNTY BOARD OF KILL DEVIL HILLS -TOWN OF EDUCATION TOWN OF KILL DEVIL HILLS WILLEY J FLETCHER-JR CHAIRMAN Legal Description SEE DEED OF EASEMENT Misc OLD DOC CODE: DEED EASE NotesJjRetum Address Related SEE DOCUMENT FOR VALID RECORDING TIME 2176260 j Back Copyrightm 1999 der Technologies,_ Inc., Eagle Dlvision, All Rights Reserved. Pnvacy Policy http://icris.darenc.com/icris/detailjsp?did=2176260 8/30/2007 Inquire by Parcel number Page 1 of 1 IWelCome Im Dare County ... land of beginnings Home I Directory I Contact Us I Comments L Links and of Commissioners I Financial Info I Leeals I Forms I EmDlovment I Calendar I LaserFiche I Service • Public Information Files I': Inquire by Parcel number Text Menu I Departments I File Date: 08/27/2007 Enter the 9-digit Parcel Number: 1008165010 I(No spaces or 's) Find Parcel IF ew Search I Reset -cel: 008165010 Owner: TOWN OF KILL DEVIL HILLS 4:988310269332 Owner2: t: 0 Din Addr: P O BOX 1719 -INGTON RD Addr: trict: [07 ] KILL DEVIL HILLS Addr: KILL DEVIL HILLS NC27948 )div: (0000] SUBDIVISION - NONE Own nature: BlkSect: Lot: Blk: Sec: Deed Date: 11/18/1991 ItipleLots: - Deed Sk/Pg: 0776/0297 tCabSlide: PL: SL: Units: 1 PUSE: [0090]Vacant Land (Town of KDH) m 2007 Tax Levy Value id Value: Idina Value: ESTATE VALUE: 4688800 �j Search Site Index I Homeland Security I Privacy_Statement I Accessibility, http://www.darenc.net/public/TaxingParcel2.asp?Parce1=008165010 8/30/2007 Soil Map —Dam County, North Carolina MAP LEGEND MAP INFORMATION Area of Interest (AOO Very Stony Spot Original soil survey map sheets were prepared at publication scale. O Arm of Interest (AOl) Wet Spot Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper Solb ♦ Other map measurements. Q Soil Map Units Special um Features Source of Map: Natural Resources Conservation Service Special Point Features .v E—'•• Web Soil SurveyURL: h /Avebsolisurve nres.usda. ov y g V Blowout Coordinate System: UTM Zone 18N r� ShM Shod Slurp Slope ® Borrow Pit This product is generated from the USDA-NRCS certified data as of 1'(. Clay Spat Other the version date(s) listed below. ♦ Closed Depression Political Features Soil Survey Area: Dare County, North Carolina Municipalities Survey Area Data: Version 10, Jan 10, 2008 X Gravel Pit O Cities Date(s) aerial images were photographed: 1/311998; 1/4/1998 .. Gravelly Spot Q Urban Areas The orthophoto or other base map on which the soil lines were ® Landfill Water Features compiled and digitized probably differs from the background A Lave Flow Oceans imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. ,6 Marsh Streams and Canals R Mine or Quarry Transportation +�+��' Rails ® Miscellaneous Water Roads p Perennial Water ^,. Interstate Highways v Rock Outcrop US Routes } Saline Spot d State Highways Sandy Spot J Local Roads _ Severely Eroded Spot r-'� m Other Roads (> Sinkhole _ ;) Slide or Slip p Sodlc Spot Spoil Area Q Stony Spot �= Natural Resources Web Soil Survey 2.0 1/14/2008 Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map —Dam County, North Carolina Map Unit Legend Dare County, North Carolina (NC055) Map Unit Symbol Map UnK Name Acres in AOI Percent of AOI COB Corolla fine sand, 0 to 6 percent slopes, rarely flooded 6.6 14.3% DuE Dune land, 2 to 40 percent slopes 10.5 22.7% DwE Dune land-Newhan complex, 2 to 40 percent slopes 2.9 6.3% NhC Newhan-Corolla complex, 0 to 10 percent slopes 13.4 28.9% OuB Ousiey fine sand, 0 to 5 percent slopes, rarely flooded 12.9 27.8% Totals for Area of Interest (AOI) 46.31 100.0% 115DA Natural Resources Web Soil Survey 2.0 1/142008 s Conservation Service National Cooperative Soil Survey Page 3 of 3 Stormwater Narrative RECEIVED Town of Kill Devil Hills JAN 17 2008 Public Services Western Parcel DWQ-WARD (Revised) January 14, 2008 Stormwater generated from this site will be conveyed via sheet flow to two eighteen -inch deep dry infiltration basins. The site consists of sandy soils with a rapid infiltration rate. Groundwater elevations were found to be approximately three to four feet below the natural ground elevation. Ground elevations in the basin areas range from eight to twelve feet above sea level. Infiltration basin # 1 has been designed to retain and infiltrate over 4.3 inches and basin # 2 has been designed to maintain a minimum of twice the required storage volume of the 1" runoff in order to improve water quality. Both basins are pure infiltration basins with no outlets. The majority of the site improvements sheet drains to a 32,000 square foot dry infiltration basin located in the southern portion of the site. The remaining concrete and gravel drives sheet drain toward an infiltration basin located to the north of the concrete pads and captures/infiltrates stormwater generated from these areas. Attached are two spreadsheets that illustrate the coverage, run-off and storage/infiltration volumes for each drainage area. s lbemarle & ASSOCIATES, LTD. January 14, 2008 NCDENR Land Quality Section 943 Washington Square Mall Washington, NC 27889 ATTN: Ernest Odei-Larbi RECEIVED JAN 17 2008 DWQ-WARD RE: Resubmittal Project Name: Kill Devil Hills Public Works, Western Parcel Project No.: SW7071002 Location: Kill Devil Hills Drainage Basin: Pasquotank Submitted on Behalf Of: Town of Kill Devil Hills Dear Mr. Odei-Larbi: I am in receipt of the letter by you dated December 6, 2007 regarding the above referenced project. Please find the enclosed Stormwater Management resubmittal for the above referenced property as a high -density project. Currently, the site functions as a mulch & debris storage area for the Town of Kill Devil Hills, located in Dare County. The proposed improvements will consist of a 100' x 150' surplus vehicle/police impoundment area, a 200' x 200' vegetation/limb storage area, a 100' x 150' mulch storage area and a 100' x 100' spoils storage area. Infiltration basin # 1 has been designed to retain and infiltrate over 4.3 inches and basin # 2 has been designed to maintain a minimum of twice the required storage volume of the 1" runoff in order to improve water quality. Both basins are pure infiltration basins with no outlets. As indicated on the enclosed sheet C3, there are no wetlands in the area of disturbance or in the proposed project area. The basin storage volumes were determined by top + bottom surface area/2 * basin depth, and the basin infiltration volumes were determined by top surface area * infiltration rate (in/hr)/12 * 2. Lastly, the storage volume of basin #2 was incorrectly calculated on the previous submittal. It has since been corrected to 6,544 CF, which is greater than twice the storage volume required to handle a 1" runoff. Engineering -- Surveying -- Land Planning P.O. Box 3989, 115 W. Saint Clair St., Kill Devil Hills, NC 27948 Telephone: 252-441-2113 Fax: 252-441-0965 Ernest Odei-Larbi NCDENR Land Quality Section January 14, 2008 Page 2 of 2 Enclosed with this submittal are 3 copies of the site plan, revised application and supplemental forms, supporting data and calculations for this work. Please do not hesitate to call me if you have any questions regarding this project. ncer John M. elucia, PE Princ Dal naineer cc: File 06175H/350 Town of Kill Devil Hills FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this form and an acceptable erosion and sedimentation control plan have been completed and approved by the Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type oripY lint -and, if the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank-)%otla,�l V91) Part A. 1. Project 2. 3. 4. SEP 2 8 2007 Location of land -disturbing activity: County Dare City or Township Kill Devil Hills Highway/Street Veterans Drive Latitude 360 7' N Longitude 75° 40.4' W Approximate date land -disturbing activity will commence: Fall 2007 Purpose of development (residential, commercial, industrial, institutional, etc.): municipal U1 5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 5.06 6. Amount of fee enclosed: $ 390.00 The application fee of $65.00 per acre (rounded up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $585). 7. Has an erosion and sediment control plan been filed? Yes No Enclosed X 8. Person to contact should erosion and sediment control issues arise during land -disturbing activity: Name John M. DeLucia, PE Telephone 252-441-2113 Cell # E-mail Address iohnd(dalbal.us Fax # 252-441-0965 9. Landowner(s) of Record (attach accompanied page to list additional owners): Town of Kill Devil Hills Name Telephone Fax Number PO Box 17 i9 Current Mailing Address Current Street Address Kill Devil Hills NC 27948 City State Zip City State Zip 10. Deed Book No. 0776 Page No. 0297 Provide a copy of the most current deed. Part B. Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a comprehensive list of all responsible parties on an attached sheet): Town of Kill Devil Hills Name PO Box 1719 Current Mailing Address E-mail Address Current Street Address Kill Devil Hills NC 27948 City State Zip City State Zip Telephone 252449-5300 Fax Number 252441-7946 2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address of the designated North Carolina Agent: Name Current Mailing Address City State Zip Telephone E-mail Address Current Street Address City State Zip Fax (b) If the Financially Responsible Party is a Partnership or other person engaging in business under an assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible Party is a Corporation, give name and street address of the Registered Agent: Name of Registered Agent Current Mailing Address City State Zip Telephone E-mail Address Street Address City State Zip Fax Number The above information is true and correct to the best of my knowledge and belief and was provided by me under oath (This form must be signed by the Financially Responsible Person if an individual or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with the authority to execute instruments for the Financially Responsible Person). I agree to provide corrected information should there by any change in the information provided herein. Debora P. Diaz Type or pri name Signs ure l Town Manager title or Authority 9 i9 0� Date L bn one<ir- , a Notary Public of the County of /J61Z_y e State of North Carolina, hereby certify that ae w r 2 P. D r LZ Z- appeared personally before me this day and being duly swom acknowledged that the above form was executed by him. Witness my hand and notarial seal, this IL - day of SoIp J-eAl er , 2021-2— QNQ N tary My commission expires