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HomeMy WebLinkAboutSW7060117_HISTORICAL FILE_20070627STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW 440LI7 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATEf�jr�(p�� YYYYMMDD DWQ/WRRO Fax:252-946-9215 A<>k Tra.nsrri i t C_ortf - Fceport �A< P.1 Jun 27 '07 12:09 Telephone Number Mode Start Time Pages Result Nnte 912524733001 NORMAL 27,12:06 2'06" 7 i, O K TO FAX NO �F� r NCDENR DIVISION OF WATER QUALITY WASHINGTON REGIONAL. OFFICE WASHINGTON, N.C. 27889 Phone:252-946-6481 FAX:252-946-9215 FROM: DATE: NO. OF PAGES (INCLUDING COVER): COMMENTS: ow - DRAINAGE AREAS for the OASIS HOTEL (Revised on June 20, 2007) Basin Information Drainage Area 1 Receiving Stream Name Roanoke Sound Receiving Stream Class SA s Ac Drainage Area 58,840 1.35 Existing Impervious Area 15,307 0.35 Pro osed Impervious Area 23,777 0.55 Impervious Area 40.4% Impervious Surface Area Drainage Area 1 On -Site Buildings 8,064 0.19 Concrete Pvmt. & Sidewalks 12,380 0.28 Pool & Pool Deck 3,170 0.07 Advantex Units 252 0.01 Geoweb 0 0.00 Off -Site 0 0.00 Total: 23,866 0.55 Site Area 1.35 AC Existing Coverage 26.0% Proposed Coverage 40.6% JUN 2 5 2007 Prepared by Albemarle & Associates, Ltd. 6/25/2007 Drainage Area 1 Drainage Area STORMWATER CALCULATIONS for the OASIS HOTEL REVISED June 25 2007 M940 1.35 ac SURFACE AREA INFORMATION Ira revious Surface CValue Arm C•A Building 1.00 8,064 8,064 Concrete Pvmt & Sidewalk 0.95 12.380 11,761 Pools, Poolhouse & Deck 0.95 3.170 3,012 Advantex Units L00 252 252 Total Impervious Am 23,866 23,089 Stormwater Management Areas CValue Area CA Infiltration Basin 1.00 1,663 1,663 Total Stormwater Management Areal 1,663 1,663 Total Contributing Am 25,529 24,752 Composite C 0.97 Contributing Area 0.59 ac Infiltration Basin Chamcteristics Storage Side Sloe De th ft Volume Infiltration Basin WA 2 3,114 100' ® 18" Diem. Pipe N/A 177 284' @ 15" Diam. Pipe WA 349 Total 1640 Swale Storage Side Slope Depth (D) Volome (cB Na Total EUMVED JUN 2 5 2007 DWQ-WARD Vold Spoce Pond Center a Void Spam % De R VoldVolume Na Main 20.00 00 1 0 Stormwater Management I" 1.5" 4.3" 6" Intensity(in./hr) 0.5 0.75 2.15 3.00 Runoff (cfs) 0.28 0.43 1.22 1.70 2-Hour Runoff Volume (cf) Z046 3,068 8,796 12,273 Pond/Swale Storage Volume (cf) 3,640 3,640 3,640 3,640 Pond/Swale Infnlimtron Volume (cf) 2,708 2,708 2,708 2,708 Void Volume Under Pond (cf) 0 0 0 0 Total Stormwater Managed (cf) 6,348 6,348 6,349 6.348 Percent Retained 310% 207% 72% 52% Surface Accumulated Accumulated Accumulated FE Arca ($j7 pfoe StoraLT (cB Basin Storage (cf) System Storage (cD 3.75 780 0 0 0 6.30 1663 3115 3115 Dmwdown of First 1.5" 3.01 Houra • - Stormwater falling upon the drainfield and perimeter areas with greater than two feet separation excluded from calculations due to the porosity of existing conditions. • - bored on two hour infiltration rate. 0.13 Days Prepared by Albemarle & Associates, Ltd. 6252007 STORMWATER NARRATIVE for the OASIS HOTEL in NAGS HEAD, NORTH CAROLINA REVISION 3 June 20, 2007 JUN 25 2007 DWQ-WAR® It is intended that a hotel be built on the 1.35-acre site located at 7710 and 7722 Virginia Dare Trail. Asphalt drives and TurfstoneT" type parking currently cover a portion of the site. The site is level with grass and exposed sand in the areas uncovered. The Soil Survey for Dare County has mapped the soils to consist of PsB (Psamments). The PsB map unit consists of areas where the surface layer and most of the subsoil has been removed, areas of fill or dredged material, and areas of landfill. Most or all of the natural soil has been disturbed or covered. The fill areas generally are elevated with sandy material to help prepare them for more intensive uses such as building sites. The characteristics of the soil material within the mapped areas are variable and commonly require onsite examination for most interpretations. Elevations range from 3.0 MSL at the bulkhead to approximately 5.0 MSL along US64/264. Overall coverage for the site is 40.56%. There is one (1) drainage area. Retention of the first 1.5" of rainfall has been provided and the site manages the stormwater runoff from a 4.3" storm event. Curb and drop inlets have been provided to catch stormwater runoff from the paved areas. The inlets have dropped bottoms to allow for sediment capture. Pipes that lead to an infiltration basin on the western side of the site interconnect these inlets. Roof runoff will be conveyed to the inlets by gutters, downspouts, and lateral pipes. A bypass device has been provided prior to the infiltration basin to bypass stormwater exceeding the 1.5" storm. The device consists of a weir corresponding to the 1.5" runoff elevation. The bypassed stormwater is dispersed using a level spreader to a 50' vegetated filter before entering the SA waters as allowed under 15A NCAC 02H .1005 (2)(bxiii). A soil boring was performed to estimate the depth to the water table in the vicinity of the proposed infiltration area. The boring was representative of the PsB soil unit. The groundwater table elevation was observed at 0.4 MSL on October 31, 2005, one (1) week following a 4 to 5 inch rain event (Hurricane Wilma) by Jared L. Madewell, PE. All stormwater management devices are located 50-feet from the adjacent SA waters. Prepared by Albemarle & Associates, Ltd 6/20/2007 Michael F. Easley, Governor i William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources -H < Coleen H. Sullins, Director Division of Water Quality June 22, 2007 Oasis, LLC/ Attu.- Derreek Hatchell P.OiBox 2405 .Manteo, NC 27954 Subject: Stormwater Review SW7060117 Oasis Hotel Dear Mr. Hatchell: Dare County This office received a Coastal Stormwater Permit Modification Application and plans for the subject project on June 11, 2007. A preliminary review of the project indicates that before a State Stormwater permit can be issued the following additional information is needed. 1. Consultant to hand initial the Checklist on Stormwater Management Permit Application Form. 2.. Revise the Infiltration Pond design. Do not use the storage in pipes and infiltration during the storm event as provided storage. The provided storage is less than the Required storage. 3. Please provide two copies of signed and sealed revised application, supplement, calculations and plans. The above requested information must be received in this office prior to June 29, 2007 or your application will be returned as incomplete. The return of this project will necessitate resubmittal of all required items including the application fee. If you need additional time to submit the required information, please mail or fax your request for time extension to this office at the Letterhead address. You should also be aware that the Stormwater Rules require that the permit be issued prior to any development activity. Construction without a permit is a violation of 15A NCAC 214.1000 and North Carolina General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day. Please reference the Stormwater Project Number above on all correspondence. If you have questions, please feel free to contact me at (252) 948-3959. Sincerely, Samir Dumpor, PE Environmental Engineer Washington Regional Office cc: John DeLucia, PE, Albematle & Associates, Ltd. Washington-Re`gional:0fficer North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Internet: h2o.enrstate.nc.us 943 Washington Square Mall, Washington, NC 27889 Customer Service 1-877-623-6748 One YWo,hCarolina aura!!y An Equal Opportunity/Affirmative Action Employer- 50% Recycledl10% Post Consumer Paper I m rl be a e & ASSOCIATES, LTD. To: NCDENR 943 Washington Square Mall Washington, NC 27889 Enclosed herein find the following items: Letter of Transmittal Proj. 5509D / 350 Date: 06-20-07 Attention: Samir Dumpor Subject: Oasis Description Description 0 rSW Application-- ��� Q F E "►1�3� --- ► 1 11 ❑ As requested ❑ For approval ❑ For your use ❑ Revise and return ❑ For review Notes: CC: 5509D / 350 ❑ Disapproved ❑ For permit submittal ❑ For construction ❑ For archives ❑ Please distribute ❑ Confidential ❑ For release From: John M. DeLucia, PE 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 ., ...:, ., ., _ .....f � .., _ .. ; t "ec_g-e 1'/-e ©M 4_0 Se¢ w NCDENR North Carolina Department of Environment and Natural Resources Request for Express Permit Review S w'bb Lt FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. Include this form with the application package because it help us to distinguish which projects are going through the express review and not the routine review: • Fayetteville or Raleigh Region -David Lee 919-791-4203; davld.lee(a ncmail.net • Mooresville & Asheville Region -Patrick Grogan 704-663.3772 or patrick.grog nomcmail.net • Washington Region -Lyn Hardison 252-946-9215 or Iyn.hardison(a,ncmall.net • Wilmington Region -Cameron Weaver 910-350-2004 or cameron.weaver(a)ncmail.net Project application received after 12 noon will be stamped In the following work day. APPLICANT Name Derek Hatchell Company Oasis LLC Address PO Box 2405 ,K JUN 1' 1$267 DWQ-WAR® Manteo, NC Zip 27954 PROJECT SYSTEM(S) TRIBUTARY TO SURFACE WATER CLASSIFICATION PROJECT Name Oasis Hotel (Modification) SW7060117 County Dare PROJECT LOCATION (ADDRESS) 7710 & 7722-South-Virginia Dare Trail-- ENGINEER/CONSULTANT John Delucia Company Albemarle & Associates Ltd Address PO Box 3989 City/State Kill Devil Hills, NC Zip 27948 Phone 252-441-2113 Fax 252-441-0965 Email State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required ❑Yes ❑ No ❑ STREAM ORIGIN Determination: of Stream calls; Stream Name Minor ® STORMWATER []Low Density ❑ High Density -Detention Pond ® High Density -Other Modification ❑ Low Density -Curb & Gutter ❑ High Density -Infiltration ❑ Off Site WETLANDS MUST BE ADDRESSED BELOW ❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ LAND QUALITY ❑ Erosion and Sedimentation Control Plan with _acres to be disturbed.(CK # (for DENR use)) 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. / Perennial, Blue line stream, etc on site ❑ 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 Permit Received from US ACOE ❑ Yes ❑ No The legislation allows additional fees, not to exceed 50% of the original Express Review permit application fee, to be charged for subsequent reviews due to the insufficiency of the permit applications. For DENR use only Fee Split for multiple permits: (Check # 2003 ) Total Fee Amount $ 1000 SUBMITTAL DATES Fee SUBMITTAL DATES Fee CAMA I I Variance ❑ Ma'; ❑ Min SW IN HD; M LD 6I11107 $1000 1 401: LCS I Stream Deter,_ marle )CIATES, LTD. 0 Picked JUN 2 5 2007 DWQ-WAR© Enclosed herein find the following items: Letter of Transmittal Proj. 5509D / 350 Date: 6-25-07 Attention: Derek Hatchell Subject: Oasis Hotel Number I Date Sheet I Description 2 6/25/07 1-3 Infiltration Basin Supplement 2 6/25/07 1-4 Stormwater Management Permit Application Form 2 6/20/07 1 Drainage Areas (spreadsheet) 2 6/20/07 1 Stormwater Narrative 2 6/25/07 1-2 of 2 24" x 36" Bond — Final Site Plan & Modified Stormwater Management Plan ❑ As requested ❑ For approval ❑ For permit submittal ❑ Please distribute ❑ For your use ❑ Revise and return ❑ For construction ❑ Confidential ❑ For review Notes: CC: 5509D/350 ❑ Disapproved ❑ For archives ❑ For release From: John M. DeLucia, PE 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 I m rl be a e & ASSOCIATES, LTD. To: NCDENR - WASHINGTON 943 WASHINGTON SQ. MALL WASHINGTON, NC 27889 Enclosed herein find the following items: Letter of Transmittal Proj. 5609D / 350 Date: 06-07-07 Attention: LYN HARDISON Subject: OASIS Number Date Sheet Description 2 6-7-07 STORMWATER PERMIT APPLICATION 1 STORMWATER NARRITIVE & CALCULATIONS 2 6-7-07 2 OF 2 MODIFIEND PARKING PLAN & SW ❑ As requested ❑ For approval ❑ For your use ❑ Revise and return ❑ For review ❑ Disapproved Notes: TYHANKS FOR ALL OF YOU HELP. CC: 5509D ❑ For permit submittal ❑ For construction ❑ For archives ❑ Please distribute ❑ Confidential ❑ For release From: John M. DeLucia, PE 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 0 S9 ORMWATER CALCULATIONS I'or the OASIS HOTEL REVISED 2/07 Drainage Area 1 Drainage Am 5&g4o 135 ac SURFACE. AREA INFORMATION Im revioas Surface CValue Area CA Building 1.00 8.144 8,144 Concrete Pvmt. & Sidewalk 0,95 10.781 10,242 Pool &Dak 095 3,121 2,965 Advantes limits 1.00 256 256 Geoweb 0.95 360 342 Total Impervious Area 22,662 21949 8tormwatcr Mana "reent Areas C Value Area C•A Infiltration Basin 1.00 1,625 1,625 Told Stormwaar Management Area 1,625 1,625 Total Contributing Area 24.287 23,574 Composite C 0.97 Contributing Area 0.56 se Infiltration Basin Characteristics Storage Side Sloe Depth ft Volume c Infiltration Darin N/A 2 2,424 100' © 18- Hi:. Pipe N/A 177 284' © 15" Diam. Pipe N/A 349 Total 2,9M Swale Storage Side Slmx Depth (ft) Volume (<Q n/a Total I I o 1.625 Total MAR 0 6 2007 ®WQ-WAR® Sarmwater Mam emesel I"1 1.5" 4.3" 6" Intensity (inJhr) 0.5 0.75 2.15 300 Rarmff(cIN) 0,27 0.41 1.16 1.62 2-11. Runoff V.I.(ef) 1,948 2,922 S378 11.6% Pond/Swale Storage Volume (cf) 2,950 2,950 2,950 2,950 Pond/Swale Infiltration Volume (cQ 2,708 2,708 2,708 2,708 Void Volume Under Pond (of) 0 0 0 0 Total Stormwater Managed let) 5,659 5,658 598 5,6S8 P.1 Retained 290% 194% 68% 49% Surface Accumulated Accumulated Accumulaled Elevation Anea(SF1 Pita Stoaju,to Basin Storaae(c0 system Storage to 3.90 675 0 0 0 4.50 905 228 474 702 5.00 1125 425 990 1415 5.50 1550 526 1780 2306 6.00 1630 530 2420 2950 6.50 1925 2830 2830 Drawdown of First 1.5" 3.01 Hours 0.13 Dap • - Stonowater falling upon the dminfield and perimeter areas with greater than two feet separation excluded from calculations due to the porosity of existing conditions. •• - based on two hour infiltration rate. Prep ved by Albemmle & Associates, Ltd. 3/5/2007 STORMWATER CALCULATIONS for the OASIS HOTEL Drainage Area 1 Drainage Arn 58,840 1.35 ac - SURFACE AREA INFORMATION lin-revitiiiii Surface E3 �?:=#.;ti.:xzi�'rdin". "�.''.0 ValuerLek'�:jAin'"7�ft1"'Asas`CIA'.e2ruif ❑wilding 1.00 6,983 6,983 Concrete Pv . & Sidewalk 095 11.810 11,220 Pool & Deck 0.95 1,369 001 Advaotex Units 1.00 256 256 Geoweb 0.95 360 342 Total lmperviou Area 20,779 20,101 Stomiinlei M. __—'ment'Awrh''rA"s.YO, 63C Vdoe,1:;A?Aro`S�iFed= C!A'plSrYJ Infhnnion Bnnin 1.00 1,625 1.625 Total Stormwater Man mnt A. 1,625 1625 Told Conlribotieg A. 22AW 21,726 Composite C 0.97 Contributing Arcs 0.51 ec lorthration Basin Characteristics Storage Side Sio a De tb n Volume c Infilua6m Benin N/A 2 2,262 100' @ I8" Diem. Pipe N/A 177 284' Q 15" Diem. Pipe N/A 349 Tend 2,798 Swale Stem a Side Sloe Depth It Volume c Na Total 0 Total FEB 2 2 2006 ®WQ-WAR0 Stormwater Man emnt I" 1.5" 4.3" 1 6" Intnsity (in.dv) 0.3 0.75 2.15 3.00 Rmofl(c6) 0.25 0.37 1.07 1.50 2-Hour RutoiTVolume(cf) 1,7% 2,693 7,721 10,773 Pond/Swale Storage Volume (cf) 2.788 2,788 2,788 2,788 Pond/Swalc Infiltration Volumc (of) 2,708 2,708 2,708 2,708 Void Volume Under Pond (c f) 0 0 0 0 Total Stormwater Managed (of) 5,496 5,4% 5,496 5,496 Percent Rammed 306% 204% 71 A 51 % Surface Accumulmod Aectnalarod Aectmulotcd Elevation m ISFFj Pim Staaoe (cn Basin Serrate in system Smrax (en 4 00 637 0 0 0 4.50 858 228 374 602 5,00 10% 425 967 1292 5.50 1352 526 1491 2017 6.00 1625 526 2262 2799 6,50 1925 2783 2783 Dmwdown ofFiu 1.5" 3.01 Ron. 0.13 Drys • - Stormwater falling upm the dmefield and permaterarras with greaterthm two fat ecperatim excluded from calculations due to the porosity of existing conditions. • - bnud entwo hour infiltration ram. Prep" by Albemwic & Assocudes, Ltd 2l UD% � "�'. } '..' ;. 7`:�� •�• r :� L.O . . . n `.` I& Michael F. Easley, Governor William G. Ross Jr.,Secretary North Carolina Department of Environment and Natural Resources U Mr. Derek Hatchell Oasis, LLC PO Box 2405 Manteo, NC 27954 Dear Mr. Hatchell: Alan W. Klimek, P.E. Director Division of Water Quality March 24, 2006 Subject: , Stormwater Permit No. SW7060117 Oasis Hotel High Density Project Dare County The Washington Regional Office received a complete Stormwater Management Permit Application for Oasis Hotel on March 17, 2006. 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 21-1.1000. We are forwarding Permit No. SW7060117 dated March 24, 2006, for the construction of the subject project. This permit shall be effective from the date of issuance until March 24, 2016, 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 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Amy Franklin, or myself at (252) 946-6481: Sinlel AI ,g nal Supervisor Surface Water Protection Section Washington Regional Office AH/alf cc: Jared Madewell, PE, Albemarle & Associates Bare County Building Inspections ✓Washington Regional Office Central Files N or`thCarolina ,1,7atui-ally North Carolina Division of Water Quality Washington Rreional Office Phone (252) 946-6481 FAX (252) 946421; Customer Service Internet nmatemualitV.oro 943 Washington Square Mall, Washington, NC 27889 . 1 1-877.623.6148 An Equal OpportunitylAff rntahve Action Employer- 50% Re Vycled'10% Post Co,sumer ?zoer State Stormwater Management Systems (] , c„ r., i.: Peimit No; SW7060117 _ ..,t..,..,._ ,,,..:.;:,:. ,: r. - '-mot;:i:.• STATE OF NORTH CAROLINA ' DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY:-,;.,;,;4;;_.,_;:_ STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT`"' In accordance with the. provisions of Article 21 of Chapter 1.43; General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Oasis, LLC Oasis Hotel Dare County FOR THE construction, operation and maintenance of an infiltration basins 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 March, 24, 2016, and shall be subject to the following specked conditions and limitations: - I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 20,778 square feet of impervious area. :. - 3. The tract will be limited to the amount of built -upon area indicated_ on the ` drainage area table of this permit, and per approved plans.. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or7ecorded 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. 6. The following design criteria have been provided in the infiltration basin -'and must Page 2 of 7 -s = • . State Stomiwater Management Systems -- -- .-............. .. - • Permit No. SW7060117 be maintained at design condition:.--, Site,Area. acres:-,_-.; —i- 135; _-- b. Drainage Area`fo Basins, acres: =1.35 c. Total Impervious Surfaces, fix: 20,778 d. Design Storm, inches: 1.5 e. Basins Depth, feet_;.-, : 2.5 f. Bottom Elevation, FMSL: 4.00 :;:Bottom.Surface Area; - . . " � 1,625 • _ h. Bypass Overflow Elevation, FMSL: 6.50 i. Permitted Storage Volume, ft3: 2,788 j. Type of Soil: PsB k. Expected Infiltration Rate, in/hr: 10 I. Seasonal High Water Table, FMSL: 0.4 M. Time to Draw Down, hours: 2.4 rt.. Receiving Stream/River Basin: Roanoke Sound o: Stream Index Number: 30-21 p. Classification of Water Body: "SA" II. SCHEDULE OF COMPLIANCE. 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance.:.: necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. c. Mowing and revegetation of.slopes. and the vegetated filter::: „ d. .: _ Immediate repairof 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, Page 3 of 7 State Stormwater Management Systems Permit No: SW7060117 activity, name of person performing the work and what••"ai5tions:were `taken'PM 5. The facilities shall be constructedas shown.on the -approved plansr-This'permif shall become.voidable, unless the facilities are constructed in accordance with the. conditions of this permit,_the.approved plans and specifications,�and other 11 *i� ] supporting'data ,A ni:r4 .`rr z-n Sf / it rp u Yef 6. 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:designerfor the.system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and %J.,.- specfcations; and;other supporting:documentation?-Any deviations V66 the is approved plans. and'specifications must be:noted on.the Certification_ Av? rnodification may: be required.for thoseAeviations = :3 7. If the stormwater. system was -used as an -Erosion Control device; it must be restored to design condition prior.to:operatiorras a stormwater treatment device, and prior to occupancy of the facility. - 6. 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. 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 for a minimum of ten years from the date of the completion of construction. 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: Page 4 of 7 >•° State Stormwater Management Systems 'cti j a ,ram .Ci Permit No SW7060117 III. GENERAL CONDITIONS:•r... s ;Yvc a 1: :-:This permit is. not transferable, except afternoticeto and -approval by.the Director. In.the event of a changeW ownership;'or a name change; the _perm itf- must submit a formal permiftransfer request to the Division of Water. Quality,---" accompanied by a completed namelownership' change forrii'docum_entation -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: _ r. , : •;r i?i.ik- _"i." E ley' ...:' hh U- .t_' - ...-.: _ i'i i.-'+.. yri 2. s.. Failure to abide by the conditions and limitations contained in this permit may subject.the Permittee to enforcement action by the: DiVmionof. Water- Quality, in accordance with North Carolina -General Statute _143-215:6A to--143=215.6C_ 3. s.The:issuance of this permit does -not peeclude'.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. 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 of any name, ownership or mailing address changes within 30 days. Permit issued this the 24t" day of March, 2006. NO TH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems I ermit No. F4706011 I Oasis Hotel Stormwater Permit No. SVV7060117 Designers Certification I as a duly registered in 6&t6t6"of N6rth:C6rolina':having'-bee'nri'aut6d t6'obs"ervd'(p6fi6dically/ weekly/ full time) the construction of the project, (Prqject) 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 iof thisformis included in the Certification. Noted deviations from approved plans and specification:' Page 6 of 7 State Stormwater Management Systems . Permit No. SV%7060117 Certification Requirements: , 1. The drainage area to the system contains approximately the permitted acreage. 2.-,,, .-,.The drainage area to. the system contains no more'thari.the�peFinitted amouht 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 Washington Regional Office Dare County Building Inspections Page 7 of 7 OFFICE USE ONLY Dale Received Fee Paid Permit Number State of North Carolina RMECEu ED Department of Environmental and Natural Resources Division of Water Quality MAR 0 6 2007 STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original ®WQ-WAR® 1. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Oasis. LLC 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Mr. Derek Hatchell, President 3. Mailing Address for person listed in item 2 above: P.O. Box 2405 City: Manteo State: NC Zip: 27954 Telephone Number: (252) 473-6074 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Oasis Hotel 5. Location of Project (street address): 7710 and 7722 South Virginia Dare Trail City: Nags Head County: Dare 6. Directions to project (from nearest major intersection): From the intersection of US64/264 and US64/264 BUS, proceed east on US64/264 approximately 2.57 miles. Site is on the left immediatelv before bridee. 7. Latitude: 35' 53.98'N Longitude: 75' 37.03' W of project 8. Contact person who can answer questions about the project: Name: Mr. John M. DeLucia, PE Telephone Number: ( 252 ) 441-2113 H. PERMIT INFORMATION: I. Specify whether project is (check one): New Renewal X Modification Form SWU-101 Version 3.99 Pagel of4 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the Existing permit number SW7060117 and its issue date (if known) March 24, 2005 3. Specify the type of project (check one): Low Density High Density X Redevelop X General Permit Other 4. Additional Project Requirements (check applicable blanks): X CAMA Major Sedimentation/Erosion Control X 404/401 Permit _ NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION 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 is collected and pretreated in curb inlets throuehout the site. The inlets are interconnected with nines that convey the stormwater to an infiltration basin on the western side of the site. There is a bypass device which precedes the basin bypassing the stormwater beyond the 1.5" rainfall via a weir into a level spreader and filter. 2. Stormwater runoff from this project drains to the Pasquotank River basin. 3. Total Project Area: 1.35 Acres 4. Project Built Upon Area: 38.16 % 5. How many drainage areas does the project have? 1 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area I Drainage Area 2 Receiving Stream Name See Attached Sheet Receiving Stream Class Drainage Area Existing Impervious* Area Proposed Impervious* Area % Impervious* Area (total) Impervious* Surface Area Drainage Area I Drainage Area 2 On -site Buildings See Attached Sheet On -site Streets On -site Parking On -site Sidewalks Other on -site Off -site Total: Total: • Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 3.99 Page 2 of 7. How was the offsite Impervious area listed above derived? IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all Subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment. 1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality. These covenants may not be Changed or deleted without the consent of the State. 1. No more than square feet ofany lot shall be covered by structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick slope, slate, or similar material but do not include wood decking or the water surface ofswimming pools. 3. Swales shall not be filled in, piped or altered except as necessary to provide driveway crossings. 4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction S. All permitted runofffrom mot arrels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, 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 forms) listed below must be submitted for each BMP specified for this project Contact the Stormwater and General Permits Unit at (919) 733-5093 for the status and availability of these forms Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SW-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form SWU-101 Version 3.99 Page 3 of 4 VI. SUBMITTAL REQUIRMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be Submitted to the appropriate DWQ Regional Office. 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. • Original and one copy of the Stormwater Management Permit Application Form X • One copy of the applicable Supplement Form (s) for each BMP -XX: • Permit application processing fee of $420 (payable to NCDENR) X • Detailed narrative description of stormwater treatmenUmanagement • Two copies of plans and specifications, including: _. - 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) 1IA1 -TsI3rkYW1111 elftY43 Y[s7►1 If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual of firm): Albemarle & Associates, Ltd. - Mr. John M. DeLucia, PE Mailing Address: P.O. Box 3989, 115 West St. Clair Street City: Phone: Kill Devil Hills State: NC Zip: 27948 441-2113 Fax: (252)441-0965 VIII. APPLICANT'S CERTIFICATION 1, (print or type name ojperson listed in General Information, item 2) Mr. Derek Hatchell 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 recorded, and that the proposed project complies with the requirements of 15A NCAC2H.1000. tny_/7 Signature: a { T Date: to Q Form S WU-101 Version 3.99 Page 4 of 4 DRAINAGE AREAS for the OASIS HOTEL (Revised on 2/28/06) Basin Information Drainage Area 1 Receiving Stream Name Roanoke Sound Receiving Stream Class SA s Ac Drainage Area 58,840 1.35 Existing Impervious Area 15,307 0.35 Pro osed Im ervious Area 22,662 0.52 %Impervious Area 38.5% Impervious Surface Area Drainage Area 1 On -Site Buildings 8,144 0.19 Concrete Pvmt. & Sidewalks 10,781 0.25 Pool & Pool Deck 3,121 0.07 Advantex Units 256 0.01 Geoweb 360 0.00 Off -Site 0 0.00 Total: 22,662 0.52 Site Area 1.35 AC Existing Coverage 26.0% Proposed Coverage 38.2% MAR 06 22�r Prepared by Albemarle & Associates, Ltd. 3/5/2007 Soil Boring for the Oasis Hotel Soil Boring depth B- 0" - 4" tan fine sand 4" - 6" brown fine sand 6" - 12" brown fine sand 12" -18" tan fine sand 18" - 24" tan fine sand 24" - 30" moist tan fine sand 30" - 36" moist tan fine sand saturated >36" gray/black fine sand Depth to Water Table 36" Surface Elev 3.40 Appx. WT Elev 0.40 RE CEMED MAR 0 6 2007 ®WQ-WAR® Albemarle & Associates, Ltd. 1/5/2006 STORMWATER NARRATIVE for the OASIS HOTEL in NAGS HEAD, NORTH CAROLINA REVISED REaEOVE® MAR); W WQ-VVARO It is intended that a hotel be built on the 1.35-acre site located at 7710 and 7722 Virginia Dare Trail. Asphalt drives and TurfstoneT type parking currently cover a portion of the site. The site is level with grass and exposed sand in the areas uncovered. The Soil Survey for Dare County has mapped the soils to consist of PsB (Psamments). The PsB map unit consists of areas where the surface layer and most of the subsoil has been removed, areas of fill or dredged material, and areas of landfill. Most or all of the natural soil has been disturbed or covered. The fill areas generally are elevated with sandy material to help prepare them for more intensive uses such as building sites. The characteristics of the soil material within the mapped areas are variable and commonly require onsite examination for most interpretations. Elevations range from 3.0 MSL at the bulkhead to approximately 5.0 MSL along US64/264. Overall coverage for the site is 38.16%. There is one (1) drainage area. Retention of the first 1.5" of rainfall has been provided and the site manages the stormwater runoff from a 4.3" storm event. Curb inlets have been provided to catch stormwater runoff from the paved areas. The inlets have dropped bottoms to allow for pretreatment. Pipes that lead to an infiltration basin on the western side of the site interconnect these inlets. Roof runoff will be conveyed to the inlets by gutters, downspouts, and lateral pipes. A bypass device has been provided prior to the infiltration basin to bypass stormwater exceeding the 1.5" storm. The device consists of a weir corresponding to the 1.5" runoff elevation. The bypassed stormwater is dispersed using a level spreader to a 50' vegetated filter before entering the SA waters as allowed under 15A NCAC 02H .1005 (2)(b)(iii). A soil boring was performed to estimate the depth to the water table in the vicinity of the proposed infiltration area. The boring was representative of the PsB soil unit. The groundwater table elevation was observed at 0.4 MSL on October 31, 2005, one (1) week following a 4 to 5 inch rain event (Hurricane Wilma) by Jared L. Madewell, PE. All stormwater management devices are located 50-feet from the adjacent SA waters. Prepared by Albemarle & Associates, Ltd 3/5/2007 :1, , [Fwd: Oasis motel, Nags Head] Subject: [Fwd: Oasis motel, Nags Head] From: Scott Vinson <Scott.Vinson@ncmail.net> Date: Mon, 05 Mar 2007 17:56:24 -0500 To: Lyn Hardison <Lyn.Hardison@ncmail.net>, Samir Dumpor <Samir.Dumpor@ncmail.net> fyi This was an email from John that you may or may not need anything from it. Scott Subject: Oasis motel, Nags Head From: "John DeLucia" <JohnD@albal.us> Date: Tue, 20 Feb 2007 07:56:37 -0500 To: <Scott.Vinson@ncmail.net> CC: <AI.Hodge@ncmail.net>, "Tim Wilson" <wilson@TownotNagsHead.net> Dear Scott, Thanks for calling me back Thursday to discuss the Oasis Motel project changes.Here are the original and revised stormwater spreadsheets for the Oasis Motel. Also attached are the original and revised site configuration. The owners have decided to add a unenclosed canopy above several parking spaces near the front door and to reconfigure the pool and pool deck area. This change results in additional coverage of 1874 sf. (primarily at the pool area) The approved stormwater basin management provided 204% management of the first 1.5" of rainfall. The revised talcs show that this basin will still provide 188% of the first 1.5". 1 really don't see this as a substantial revision as we have provided much more treatment than is required. We also repositioned the overflow device to allow more distance for the vegetative filter. I also believe that the assumed infiltration rate (10"/hr) is probably very conservative as this site has very sandy soil and is in close proximity to the Sound. (I'd expect at least 20"/hr as the actual rate) The building and site work are underway and the owners need to have the facility opened in the spring. How is the best and quickest way to get this revision approved. The Town has permitted the canopy addition to be initiated but will not allow the pool change to be started until they know that you all are ok with the revisions. I think that a simple email would suffice for the town. I'll be in most of the day and if not my cell number is 252-202-2341. 1 hope that we can get this resolved expeditiously as the pool needs to be started as soon as possible. Thanks again for your help. John John M.DeLucia, PE Principal Engineer Albemarle & Associates, Ltd. P.O. Box 3989 / 115 W. St. Clair St. Kill Devil Hills, NC 27948 (252) 441-2113 Ext. 15 Phone (252) 441-0965 Fax johnd(a.albal.us I of 2 3/6/2007 8:06 AM Michael F. Easley, Governor William G. Ross Jr., secretary North Carolina Department of Environment and Natural Resources as Y February 8, 2006 Mr. Derek Hatchell Oasis, LLC PO Box 2405 Manteo, NC 27954 Alan W. Klimek P.E. Director Division of Water Quality Subject: Stormwater Review SW7060117 Oasis Hotel Dare County Dear Mr. Hatchell: This office received a Coastal Stormwater permit application and plans for the subject project on January 17, 2006. A preliminary review of your project indicates that before a State Stormwater permit can be issued the following additional information is needed. ➢ j Please provide drawdown calculations. r➢/Please explain the 10-inft infiltration rate since the USDA Soil Survey does not list an infiltration rate. -➢ Please provide non -erosive flow calculations for the bypass filter. -➢� Please provide detail, calculations and filter for overflow. 1?o�' Please specify 4 inches of clean sand or dense vegetation for the surface of the infiltration basin. Please show that the first 1.5-inch storage in the pipes is not escaping through the smart weir in the bypass. Also the bypass weir may be raised to reach the required storage volume if this height is less than the top of the basin. .' Please note that the geoweb is considered to be impervious due to the compaction of the sub grade. Please amend calculations to include this area. The above requested information must be received in this office prior to March 10, 2006 or your application will be returned as incomplete. The return of this project will necessitate resubmittal of, all required items including the application fee. If you need additional time to submit the required information, please mail or fax your request for time extension to this office at the Letterhead address. You should also be aware that the Stormwater Rules require that the permit be issued prior to any development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North Carolina General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day. Please reference the Stormwater Project Number above on all correspondence. If you have questions, please feel free to contact me at (252) 948-3934. Sincerely, Amy L. Franklin Environmental Engineer Washington Regional Office cc: Jared Madewell, PE, Albemarle & Associates, LTD. Washington Regional Office N011oft ar( )Vatllra North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Internet h2o.encstate.nc.us 943 Washington Square Mall, Washington, NC 27889 An Equal OppommitylAlfirmative Action Employer— 500/6 Recyc1er1110% Post Consumer Paper Customer Service 1-877-623-6748 m rl be a e & ASSOCIATES. LTD. Enclosed herein find the following items: Letter of Transmittal Proj. 5 09 Date:3 17 66 Attention: m L rvz4 Subject: S�5 6-(.1 ft� 600 1=11=112= D•: aAs requested ❑ For approval ❑ For permit submittal ❑ Please distribute ❑ For your use ❑ Revise and return ❑ For construction ❑ Confidential ❑ For review ❑ Disapproved ❑ For archives ❑ For release Notes: �EC, ���E© MAR 2 2 2006 . CC: 550`% From: S*'r,2- L. Aaae-wef Engineering — Surveying — Land Planning P.O. Box 3989, 115 W Saint Clair SL, Kill Devil Hills, NC 27948 Telephone: 252-441-2113 Fax: 252-441-0965 CC f f E .... . ...... . L-J Ibemarle & ASSOCIATES, LTD. March 17, 2006 North Carolina Division of Water Quality Washington Regional Office 943 Washington Square Mall Washington, NC 27889 ATTN: Ms. Amy L. Franklin RE: Stormwater Review SW7060117 Oasis Hotel Dare County Dear Ms. Franklin: MAR 2 2 2006 Per our meeting today on the site of the above referenced project, we will place a note on the plans directing the contractor to remove and replace with suitable soil any debris found in the area of as well as underlying the infiltration basin. We will be sending you two (2) copies of the revised plan for your records. Per our conversations, it is our understanding that the approved permit will be forthcoming upon receipt of this letter. Thank you for your cooperation with this project. Should you have further questions or comments regarding this project please do not hesitate to call me. Jared L. Madewell, PE Project Engineer cc: 5509D Client 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 ymvn�ww: 0:2, W mplash, .-'!fnf. .,,:'� ", 1.1;! ' r: -,� � , , , -" : ". I:. r, 0 3Jon .. �J';(306 lo`i slome! A :'; AVE& MASAW AT lo" fc, �:-1!qa-. K% f,r:, NT W"'m OhAwyb jCs Orlm" hat cb ssw:q t", q -Q 11510cpsl Vs. No 2), to Its is 64P sdily, QUOU n. 00:2 Permit No. (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality EC EIVED STORMWATER MANAGEMENT PERMIT APPLICATION FORM INFILTRATION BASIN SUPPLEMENT JAN 1 7 2006 This form may be photocopied for use as an original D Q-W n ❑o DWO Stormwater Management Plan Review: A complete stormwater management plan submittal includes a stormwater management permit application, an infiltration basin supplement for each system, design calculations, soils report and plans and specifications showing all stormwater conveyances and system details. 1. PROJECT INFORMATION Project Name: Oasis Hotel Contact Person: Mr. Jared L. Madewell, PE Phone Number: 252441-21 13 This worksheet applies to: Basin No. 1 in Drainage Area (as identified on plane) (from Form SWU-101) 11. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be based upon an actual field investigation and soil borings. County soil maps are not an acceptable source of soils information. All elevations shall be in feet mean sea level (fmsl). Soils Report Summary Soil Type PsB Infiltration Rate 10 in/hr r cf/hr/sf (circle appropriate units) SH WT Elevation 0.4 fmsl (Seasonal High Water Table elevation) Basin Design Parameters Design Storm 1.5 inch (1.5 inch event for SA waters, I inch event for others) Design Volume 2,651 c.f. Drawdown Time 0.10 Days Basin Dimensions Basin Size 22.6 ft. x 71.9 ft = 1625 sq.ft. (bottom dimensions) Basin Volume Provided 2,788 c.f. Basin Elevations Bottom Elevation 4.00 Fmsl Storage Elevation 6.00 Fmsl Top Elevation 6.50 Fmsl Form SWU-103 Rev 3.99 Page] of3 0 m III. REQUIRED ITEMS CIIECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 2H . 1008. Initial in the space provided to indicate that the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. Attach justification if a requirement has not been met. Applicants Initials p �/. a. System is located 50 feet from class SA waters and 30, feet from other surface waters. b. System is located at least 100 feet from water supply wells. c. Bottom of system is at least 2 feet above the seasonal high water table. d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon. . (f e. System is not sited on or in fill material or DWQ approval has been obtained. 1-1 f. System is located in a recorded drainage easement for the purposes of operation and maintenance and has recorded access easements to the nearest public right-of-way. �%. /f g. Drainage area for the device is less than 5 acres. D, /f h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is attached. f i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for areas draining to SA waters ). Design volume and infiltration calculations attached. 17, j. System is sized to take into account the runoff at the ultimate built -out potential from all surfaces draining to the system, including any off -site drainage. Calculations attached. n. k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H: V). 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or sediment trap is provided. m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or dense vegetative cover is provided. ff n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum length is 50 feet for SA waters, 30 feet for other waters). o. Flow distribution mechanism within the basin is provided. t,2_ p. A benchmark is provided to determine the sediment accumulation in the pretreatment device. q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided). r. System is designed to draw down the design storage volume to the proposed bottom elevation under seasonal high water conditions within five days. A soils report and all pertinent draw -down calculations are attached. Plans installed s. ensure that the system will meet design specifications (constructed or restored) upon initial operation once the project is complete and the entire drainage area is stabilized. Form SWU-103 Rev 3.99 Page 2 of 3 IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT I. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion, trash accumulation, vegetative cover, and general condition. 2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetated cover to maintain a maximum height of six inches, and remove trash as needed. 3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow structures for blockage and deterioration. Remove any blockage and repair the structure to approved design specifications. 4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when the depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored to the original design depth without over -excavating. Over -excavating may cause the required water table separation to be reduced and may compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a manna that will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or stream, etc.). A benchmark shall be established in the pretreatment unit. The benchmark will document the original design depth so that accurate sediment accumulation readings can be taken. The measuring device used to determine the depth at the benchmark shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the design depth reads _150 feet in the pretreatment unit, the sediment shall he removed from both the pretreatment unit and the infiltration basin. 5. If the Division determines that the: system is failing, the system will immediately be repaired In origina[ ;_Secion specifications. If the system cannot be repaired to perform its design function, other stormwater control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed. 1 acknowledge and agree by my signature below that I am responsible for the performance; of the, we maintenance proccdu s listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print Name and Title: Mr. Derek Hatchell President Address: P.O. Box 2405 / Phone: 252 473-6074 Date: Signature: a 'd Note. The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold [[�� and a resident ojth subdivision has been named the president. Inn, Fi GtLC 1 1A) SIEG✓ALL a Notary Public for the State of &OM l}fOU al a4 , Countyof L4R tT6tUC , do hereby certify that j� (u, tf LI�£LL personally appeared before me this day of SAu u ARY 1 , 200 (o and acknowledge the due execution of the forgoing infiltration basin maintenance requirements. Witness my hand and official seal. SEAL ,���"prr`Wrur,r�h �.•'VF�...... , STE '•,� Q•; �O A 9 y ;9coo �� My commission expires F£ta,. .2r Ooo Signature W . !T'9L6%0 SmI V 11=aw OFFICE USE ONLY I Date Received Fee Paid T Permit Number 1A' ,p/[� State of North Carolina SWAG j1$/0(a DtltlQ YtltDp ai-tment of Environmental and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original 1. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Oasis, LLC 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Mr. Derek Hatchell. President 3. Mailing Address for person listed in item 2 above: City: Manteo State: NC Zip: 27954 Telephone Number: (252) 473-6074 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Oasis Hotel 5. Location of Project (street address): 7710 and 7722 South Virginia Dare Trail City: Nags Head County: Dare 6. Directions to project (from nearest major intersection): From the intersection of US641264 and US64/264 BUS, proceed east on US64/264 app imately 2.57 milesax _ Site is on the left immediately before bridge_ _ 7. Latitude: 350 53.98'N Longitude: 750 37.03' W of project 8. Contact person who can answer questions about the project: Name: Mr. Jared L. Madewell, PE Telephone Number: ( 252 ) 441-21 13 11. PERMIT INFORMATION: Specify whether project is (check one): New Renewal X Modification Form SWU-101 Version 3.99 Page I of I a 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 X Redevelop _X General Permit _ Other 4. Additional Project Requirements (check applicable blanks): X CAMA Major Sedimentation/Erosion Control X 404/401 Permit NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. 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 is collected and oretreated in curb inlets throuehout the site. The inlets are interconnected with cities that convey the stormwater to an infiltration basin on the western side of the site. There is a bypass device which precedes the basin bypassing the stormwater beyond the 1.5" rainfall via a weir into a level spreader and filter. 2. Stormwater runoff from this project drains to the Pasquotank River basin. 3. Total Project Area: 1.35 Acres 5. How many drainage areas does the project have? 1 4. Project Built Upon Area: 34.7 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name See Attached Sheet Receiving Stream Class Drainage Area Existing Impervious' Area Proposed Impervious* Area % Impervious* Area (total) Impervious* Surface Area Drainage Area I Drainage Area 2 On -site Buildings See Attached Sheet On -site Streets On -site Parking On -site Sidewalks Other on -site Off -site Total: Total: impervious area is aepnea as ine num upon area inctuaing, out not nmaea to, ouitaings, roads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 3.99 Page 2 of DRAINAGE AREAS for the OASIS HOTEL (Revised on 2/28106) Basin Information Drainage Area 1 Receiving Stream Name Roanoke Sound Receiving Stream Class SA s Ac Drainage Area 58,840 1.35 Existing Impervious Area 15,307 0.35 Pro sed Impervious Area 20,778 0.48 %Impervious Area 35.3% Impervious Surface Area Draina a Areal On -Site Buildings 6,983 0.16 Concrete Pvmt. & Sidewalks 11,810 0.27 Pool & Pool Deck 1,369 0.03 Advantex Units 256 0.01 Geoweb 360 0.00 Off -Site 0 0.00 Total: 20.778 0.48 Site Area 1.35 AC Existing Coverage 26.0% Proposed Coverage 35.3% 70-21 MAR 17 2006 DWQ MW# Prepared by Albemarle & Associates, Ltd. 3/16/2006 7. How was the offsite Impervious area listed above derived? IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all Subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment. 1. The following covenants are intended to ensure ongoing compliance with .state stormwater management permit number as issued by the Division of Water Quality. These covenants may not be Changed or deleted without the consent of the State. 2. No more than square feet ofany lot shall be covered by structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick stone, slate, or similar material but do not include wood decking or the water surface ofswimming pools. 3. Swales shall not be filled in, piped or altered except as necessary to provide driveway crossings. 4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction. 5. All permitted runofjfrom outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, 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 Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Forth SWU-108 Neuse River Basin Supplement Forth SWU-109 Innovative Best Management Practice Supplement Form SWU-101 Version 3.99 Page 3 of VI. SUBMITTAL REQUIRMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be Submitted to the appropriate DWQ Regional Office. 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. • Original and one copy of the Stormwater Management Permit Application Form X • One copy of the applicable Supplement Form (s) for each BMP X • Permit application processing fee of $420 (payable to NCDENR) X • Detailed narrative description of stormwater trealmentlmanagement X • Two copies of plans and specifications, including: X - Development(Project time - 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) VII. AGENT AUTORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual of firm): Albemarle & Associates, Ltd. - Mr. Jared L. Madewell, PE Mailing Address: P.O. Box 3989, 115 West St. Clair Street City: Kill Devil Hills State: NC Zip: 27948 Phone: (252)441-2113 Fax: (252)441-0965 Vlll. APPLICANT'S CERTIFICATION 1, (print or type name ofperson listed in General Information, item 2) Mr. Derek Hatchell 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 recorded, and that the proposed project complies with the requirements of 15A NCAC 2H.1000. �— Date: 0 Form SWU-101 Version 3.99 Page 4 of lbemarle & ASSOCIATES, LTD. February 20, 2006 North Carolina Division of Water Quality Washington Regional Office 943 Washington Square Mall Washington, NC 27889 ATTN: Ms. Amy L. Franklin RE: Stormwater Review SW7060117 Oasis Hotel Dare County Dear Ms. Franklin: Rccrn i u FEB 2 2 2006 ®WQ-WARO Please find the enclosed the resubmittal of the Stormwater Management plan for the above referenced project. • The drawdown calculations have been attached. • You are correct in that the USDA soil survey does not list an infiltration rate for the Psamments soil. However, when I took a soil sample at the site, it resembled the highly permeable soils found throughout this area. Since my onsite investigation, a licensed Soil Scientist has also performed an investigation (attached) on the site for wastewater purposes. He states that the soil is most like the Corolla soil series and as the Dare County Soil Survey states, has a hydraulic conductivity of greater than 20 inches per hour. Though the soil scientist further classed the soil than my initial investigation, we both agree that the soil has a structure conducive to a high permeability rate. • Though worded differently, I am assuming that this and the next comment are the same. Non -erosive flow calculations for the bypass filter have been provided and are non -erosive. • Answered above. • The bottom of the basin will consist of dense vegetation. • The elevation of the weir has been raised. The new elevation is 6.50 and corresponds to the top of the basin. • The Geoweb has been removed from the western one-half of the property. The Geoweb on the eastern side of the property will remain and it has been included within the stormwater calculations. 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 till 1.7 Ms. Amy L. Franklin Division of Water Quality 220/2006 Page 2 of 2 I hope that your request for additional information has been adequately addressed and please feel free to call me should you have further questions or comments. Sincerely, ?aredcMadewell,PE ngineer Attachments cc: File Client lbbmarle & ASSOCIATES, LTD. Engineering - Surveying - Land Planning Sox 3989, K11 Devil Hills, N.C. 279Q (252) 441-211 JIB OSS09 - Ga5%S �10� 1 SHEET NO. 2 OF CALCULATED BY L7L/0 DATE CHECKED BY SCALE Sec e, Inc. January 25, 2006 Mr. Dereck Hatchell Hatchell Concrete P.O. Box 2405 Manteo, NC 27954 P.O. Box 82 Pinetops, N.0 27864 Ph (252) 827-4348 Fax (262) 827-1382 /-•/ �� REMY ZED FEB 2 2 2006 ®WQ-WARO Subject: Soils inforrnation for an on site yr sievvater disposal system proposed to serve the Oasis Motel (17 suites), Hwy 158 Bypass, Dare County, NC. Dear Mr. Hatchell: Please find enclosed the information requested to determine if the referenced site meets the criteria for the installation of the proposed septic system. The following are included in this report 1. Soil descriptions from the proposed nitrification field area 2. Results of two constant head perneameter test 3. A groundwater mounding analysis 4. A map that shows the kxxtion of the investigation area and each test/sampling site Background and General Site Information The property is located on the northeast side of Hwy 158 just southwest of Little Bridge. The Roanoke Sound and a canal border the site on the north and northwest The site had an existing parking lot and septic system that is my understanding served a business that was located on the northern portion of the property. There was debris located in the area where the building had been located. There was an existing pier and gazebo on the waterfront and the bulkhead shown on the enclosed map appeared to be new. The investigation area consists of approximately .3 acres located adjacent to Hwy 158 and on the south and southwest side of property. The existing drain field for the septic system was located within the investigation area. It is understood the proposed septic system will serve a motel with a design wastewater fknv of 2,975 gallons per day (GPD) of domestic strength wastewater. The area consists of moderately well drained, sandy (group 1) soil. The soil is most like the Corolla soil series. Estimated hydraulic conductivity according to the Dare County Soil Survey is greater than 20 iNhr for the entire profile. Soil morphology and observed static water levels in wells indicate the seasonal high water table to be between 27 and 36 inches below the present soil surface. The borings that were done in the proposed system area indicated the presence of no fill or debris except for the drain lines of the existing septic system. As requested, ESS has conducted the site work necessary to determine the size of the proposed LPP system and do the groundwater mounding analysis for the proposed septic system. The long-term application rate (LTAR) that is proposed for the disposal system was determined based on texture, hydraulic conductivity and the fact that the effluent will be receiving pretreatment before disposal. Testing and Materials Based on a plat supplied to ESS the elevation of the test area is about 5 feet above sea level. A temporary benchmark (TBM) was established at the top of fire hydrant located across Hwy 158. The • Page 2 January 25, 2006 relative elevations shown on the enclosed map were used by ESS for soils work and testing. The relative elevation assigned to the 131 was 5.00'. The relative elevation of B2 was 4.12 feet Static groundwater on the day of testing (1/15/06) was 3.79 feet below the surface (elevation 1.21') at B1 and 2.67 feet below the surface (elevation 1.45') at B2. The relative elevation of the seasonal soil wetness condition as indicated by soil morphology would be 2.0 feet at 131 and 1.87 feet at B2. The relative elevation of the water level in the canal was approximately 1.28 feet This measurement is approximate because on the day of the investigation a strong wind was blowing out of the north/northwest and water was being pushed against the bulkhead. The hydraulic conductivity (Ksat) was measured using the compact constant head permeameter (CCHP). Two tests were run in the unsaturated zone. The hydraulic conductivities were determined to be 1.65 inches per hour in the most restrictive horizon at B1 and greater than 22.5 inches per hour at B2. The measurement of 22.5 inches/hour would be a conservative measurement because the soil absorbed water so fast that the CCHP could not supply water fast enough to establish predetermined heads. The results of the CCHP tests are on the worksheets entitled Saturated Hydraulic Conductivity Test. The hydraulic conductivity used in calculations for the mounding analysis was determined by averaging 20 inchesthour and 1.65 inches/hour. The result would be a hydraulic conductivity of 10.8 inches/hr. The depth to the impermeable layer used in calculations was 20 feet below the surface. Experience indicates the impermeable layer to be >20.feet below the surface in these areas; therefore, the depth of 20 feet should be a conservative estimate. The results of the hydraulic conductivity tests and the texture of the soil indicate that there is sufficient conductivity to warrant a long-term application rate (LTAR) of 1.0 gallons/day/Ie for a conventional type septic system (.5 gallons/dayte for low pressure pipe (LPP)). If five percent of the lowest hydraulic conductivity is used to determine the LTAR, a LTAR of 1.2 gallons/day/fr can be justified. If pretreatment Is used prior to disposal, the required absorption area can be reduced by as much as 50%. By using pretreatrrrent, the LTAR for a LPP system can be increased from .5 gallons/daylf? to 1.0 gallons/day/fr. A LPP system that is designed to dispose of 2,975 gpd at a rate of 1.0 gallons/day/fe will require 2,975 fe of absorption area. The computer program Colorado State was used in the mounding analyses. Colorado State uses inputs such as, hydraulic conductivity (Ksat), depth to the impermeable layer, level of the initial water table, thickness of transmissive layer, design flow and length to width rabos of the drain field to determined the height of the groundwater mound beneath the drain field over time. The model was run with a stream (canal) located about 100 feet away. The lowest elevation in the investigation area as indicated by elevations shot by ESS was 4.12 feet Given a ground elevation of 4.12 feet and a seasonal soil wetness condition at an elevation of 1.87 feet (2.25 feet below the surface as determined by soil morphological features), the initial depth to water was set to be 2.25 feet below the surface at the lowest point on the site. The configuration of the absorption area was calculated to be 30 feet by 100 feet based on a configuration of six 100-foot LPP lines. The model was set to show the rise in the groundwater mound from the center of the drain field to a point 100 feet from the center of the drain field. The results of the mounding analysis are entitled Mounding Analysis, Oasis Motel, Dare County, NC. The wastewater was applied to a 100' x 30' area at the rate of 1.0 gpd/ft2 (.1337 ft/day). The transmissive layer was considered to be from the surface to the depth of the impermeable layer, which was set at 20 feet below the surface. The mounding analysis predicts a rise in the level of the groundwater in the center of the drain field of .318 feet after360 days. The model predicts the final mounding height to be at relative elevation of 2.19 feet or 1.93 feet below the surface at B2, The mounded height of the soil wetness condition would be 2.68 feet below the surface at B1. Conclusions These findings indicate that existing soil conditions win allow a LPP system with pretreatment to be installed that will handle a design flow of 2,975 GPD at an adjusted LTAR of 1.0 gpd/fe. Based on pretreatment of the wastewater and LPP distribution, the absorption area required for the repair will be 2,975 fe. The mounding analysis predicts a rise of .318 in the level of the groundwater at the center of the drain field after one year. Given a mounded seasonal high water table that is 1.93 feet below the surface at its shallowest point, the groundwater mounding analysis indicates there should be adequate separation to install ultra -shallow LPP lines in the natural soil. At the location of B2 the addition of six inches of imported fill would be required to provide the required cover over the LPP lines. Due to the • Page 3 January 25, 2006 elevation change at B1, no fill should be required in this area. If the relative elevation falls below 4.82 feet, fill should be required to provide the required cover over the LPP lines. The existing septic drain field is located in the area proposed for the LPP fields. It is understood that this area will be excavated and filled with sand. The sand that imported into this area must be clean, single grained and free of debris and organic matter. The area that is reclaimed must have the same or higher permeability that the material that is excavated. The findings of this report are based on soil and site conditions present on the day of testing. Any modifications to the site in the form of heavy traffic, filling or excavation could change the results of this report and may make the site unsuitable for wastewater disposal. Any excavation or filling of the area proposed for the sewage disposal fields should only be done with the approval of the local health department The local health department and possibly the on -site wastewater and groundwater sections of the Department of Environment and Natural Resources must review and approve the findings of this report If you have any questions please contact me at (252) 827-4348. Respectfully Submitted, Scott Stone Licensed Soil Scientist Registered Sanitarian Enclosure SpdL. SC\ 0 srati�'L�s� ,.scvio� C p- 7038 O� . Afnn..Q Cc Angela Stegall, Albemarle & Associates, Ltd. Soil Descriptions Oasis Motel Hwy 158 Bypass, Dare County Ap 0 to 8 inches; dark grayish brown (2.5Y 4/2) sand; single grained; loose. Cl 8 to 18 inches; light olive brown (2.5Y 5/3) sand; single grained; loose. C2 18 to 23 inches; light yellowish brown (2.5Y 6/3) sand; single grained; loose. C3 23 to 28 inches; dark yellowish brown (10YR 4/4) fine sand; granular; very friable. C4 28 to 36 inches; light yellowish brown (2.5Y 6/3) sand; single grained; loose. C5 36 to 50 inches; light brownish gray (2.5Y 6/2) sand; single grained; loose Note: Static water level was 45.5" below the soil surface on 1/15106. B2 C1 0 to 3 inches; light olive brown (2.5Y 5/3) sand; single grained; loose. C2 3 to 18 inches; yellowish brown (IOYR 5/4) sand; single grained; loose. C3 18 to 27 inches; light yellowish brown (2.5Y 6/3) sand; single grained; loose. C4 27 to 40 inches; light brownish gray (2.5Y 6/2) sand; common fine and medium distinct yellowish brown (IOYR 5/6) and few, fine distinct reddish brown (5YR 4/4) mottles; single grained; loose. C5 40 to 50 inches; grayish brown (2.5Y 5/2) sand; single grained; loose. Note: Static water level was at 32" below the soil surface on 1/15/06. Environmental & Soil Services Saturated Hydraulic Conductivity Test Compact Constant Head Permeameter Method Site Name: Oasis Motel Area Size: +/- 1.32 acres Parcel I.D. Number. Location: Just SW of Little Bridge, Hwy 158 Bypass, Dare County Tested By: Scott Stone ...............................................................■....................... Boring #1: At Bl Circle: 1 sery ' 2 reservoirs Hole depth (cm): Diameter of hole: Height of water at steady state: Area of small reservoir: Area of small + large reservoir: Measured dmwdown in reservoir(s) in cm/hr (convert to hours if using minutes or seconds as time interval): Boring 42: At B2 Circle: 1 reservoir reservoi s 73.7 Hole depth (cm): 55.8 6 Diameter of hole: 6 16.5 Height of water at steady state: 10.2 20 cm2 Area of small reservoir: 20 cm 105 cm2 Area of small reservoir + large reservoir: 105 cm Measured drawdown in reservoirs) in cm/hr (convert to hours if using 228 minutes or seconds as time interval): 300 Volume of water used at steady state (cm3): 4,560 Saturated hydraulic conductivity (cm/hr): 4.2 Volume of water used at steady state (cm3): Saturated hydraulic conductivity (cm/hr): 31,500 57.3 Comments: The test conducted in boring #2 would not approach the predetermined head of 20 cm due to the fast rate at which the soil absorbed water; therefore, the conductivity of 57.3 cm/hr should be conservative. Static water levels were 115.6 cm and 81.3 cm below the surface at boring # 1 and 2, respectively. Mounding Analysis, Oasis Motel, Dare County, NC RECHARGE RATE _ .1337 FT/DAY TRANSMISSIVITY = 432 SQ.FT/DAY SPECIFIC YIELD = .15 BEGINNING TIME = 60 DAYS FINAL TIME = 360 DAYS TIME INCREMENT = 60 DAYS TIME OF CUT OFF = 360 DAYS BEGINNING DISTANCE = 0 FT FINAL DISTANCE = 100 FT DISTANCE INCREMENT = 25 FT DEPTH = 2.25 FT WIDTH = 30 FT LENGTH = 100 FT ANGLE = 90 DEGREES STREAM DISTANCE = 100 FEET MOUND PROFILE YES STREAM DISCHARGE NO TIME DISTANCE HEIGHT (DAYS) (FT) (FT) 60.000 0.000 0.315 60.000 25.000 0.252 60.000 25.000 0.252 60.000 50.000 0.186 60.000 50.000 0.186 60.000 75.000 0.141 60.000 75.000 0.141 60.000 100.000 0.109 60.000 100.000 0.109 120.000 0.000 0.317 120.000 25.000 0.254 120.000 25.000 0.254 120.000 50.000 0.188 120.000 50.000 0.188 120.000 75.000 0.143 120.000 75.000 0.143 120.000 100.000 0.111 120.000 100.000 0.111 180.000 0.000 0.318 180.000 25.000 0.254 180.000 25.000 0.254 160.000 50.000 0.188 180.000 50.000 0.188 180.000 75.000 0.143 180.000 75.000 0.143 180.000 100.000 0.112 180.000 100.000 0.112 240.000 0.000 0.318 240.000. 25.000 0.255 240.000 25.000 0.255 240.000 50.000 0.189 240.000 50.000 0.189 240.000 75.000 0.144 240.000 75.060 0.144 240.000 100.000 0.112 240.000 100.000 0.112 300.000 0.000 0.318 300.000 25.000 0.255 300.000 25.000 0.255 Mounding Analysis, Oasis Motel, Dare County, NC Page 20.189 300.000 50.000 300.000 50.000 0.189 300.000 75.000 0.144 300.000 75.000 0.144 300.000 100.000 0.112 360.000 100.000, 0.112 360.000 0.000 0.318 360.000 25.000 0.255 360.000 25.000 0.255 360.000 50.000 0.189 360.000 50.000 0.189 360.000 75.000 0.144 360.000 75.000 0.144 360.600 100.000 0.112 360.000 100.000 0.112 cgoomlNDO)-t.pl01352000 Soil Boring and Test Site Location Map Roanoke Sound Oasis Motel, Hwy 158 Bypass, Dare County, NC �aX Ga Water Level In Canal On 1115. (1.28')Z B2 (4.12') 0o F`e4 Legend O Soil Boringlrest Location (5.00') Relative Elevation This map is not a survey. The boundary of this map was formed from a survey and an aerial photo and adjusted to match GPS data collected by ESS. A e tea. aP e PaJ `e�a� Gt0eel 906 0Q oO 10 (5.001) ll�N�S Old Building Site (Demolished) TBM - Top of Fire Hydrant (5.92') 60.00 feet t inch Environmental & Soil Service, Inc. P.O. Box 82 Pinetops, NC 27864 lbemarle & ASSOCIATES. LTD. January 13, 2006 North Carolina Division of Water Quality Washington Regional Office 943 Washington Square Mall Washington, NC 27889 ATTN: Mr. William Moore, PE RE: Stormwater Plan — Oasis Hotel Dear Mr. Moore: JAN 1 7 2006 DWQ-WARD Please find the enclosed Stormwater Management submittal for the above referenced project. A 17-unit, 3-story hotel is proposed to be built on the site. Construction is scheduled to begin in the spring of 2006. Roof runoff will be collected in gutters and directed into the nearest drop inlet. Parking lot runoff will sheet flow to the nearest drop inlet. The drop inlet are all interconnected and terminate at an infiltration basin on the west side of the site. The floors of the inlets have been lowered to assist in sediment removal. A bypass device precedes the infiltration basin and bypassed flow will pass through a 50' vegetated filter prior to entering adjacent waters. Please call me should you have any questions or comments. Sincerely, red L. Madewell, PE roject Engineer Attachments cc: File Client 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 STORMWATER NARRATIVE for the OASIS HOTEL in NAGS HEAD, NORTH CAROLINA JAN 1 7 2006 DWQ-WARD It is intended that a hotel be built on the 1.35-acre site located at 7710 and 7722 Virginia Dare Trail. Asphalt drives and TurfstoneTM type parking currently cover a portion of the site. The site is level with grass and exposed sand in the areas uncovered. The Soil Survey for Dare County has mapped the soils to consist of PsB (Psamments). The PsB map unit consists of areas where the surface layer and most of the subsoil has been removed, areas of fill or dredged material, and areas of landfill. Most or all of the natural soil has been disturbed or covered. The fill areas generally are elevated with sandy material to help prepare them for more intensive uses such as building sites. The characteristics of the soil material within the mapped areas are variable and commonly require onsite examination for most interpretations. Elevations range from 3.0 MSL at the bulkhead to approximately 5.0 MSL along US64/264. Overall coverage for the site is 34.7%. There is one (1) drainage area. Retention of the first 1.5" of rainfall has been provided and the site manages the stormwater runoff from a 4.3" storm event. Curb inlets have been provided to catch stormwater runoff from the paved areas. The inlets have dropped bottoms to allow for pretreatment. Pipes that lead to an infiltration basin on the western side of the site interconnect these inlets. Roof runoff will be conveyed to the inlets by gutters, downspouts, and lateral pipes. A bypass device has been provided prior to the infiltration basin to bypass stormwater exceeding the 1.5" storm. The device consists of a weir corresponding to the 1.5" runoff elevation. The bypassed stormwater is dispersed using a level spreader to a 50' vegetated filter before entering the SA waters as allowed under 15A NCAC 02H .1005 (2)(b)(iii). A soil boring was performed to estimate the depth to the water table in the vicinity of the proposed infiltration area. The boring was representative of the PsB soil unit. The groundwater table elevation was observed at 0.4 MSL on October 31, 2005, one (1) week following a 4 to 5 inch rain event (Hurricane Wilma) by Jared L. Madewell, PE. All stormwater management devices are located 50-feet from the adjacent SA waters. Prepared by Albemarle & Associates, Ltd 1/11/2006 i;l'f�'�1�',: ,� r,u _ . 1f i 'i . �r! �I. 2 � '. Soil Boring for the Oasis Hotel Soil Borin depth 0" - 4" tan fine sand 4" - 6" brown fine sand T - 12" brown fine sand 12" - 18" tan fine sand 18" - 24" tan fine sand 24" - 30" moist tan fine sand moist tan fine 30" - 36" sand saturated >36" gray/black fine sand Depth to Water 36" Table Surface Elev 3.40 Appx. WT Elev 0.40 Albemarle & Associates, Ltd. 1 /5/2006 03 17/2006 16:26 r� 2524410965 ALBEMARLE & ASSOC PAGE 01 4! Albemarl & ASSOCIATES, L' 1 TO: hh Itan IA AA COMPANY: dvprly FAX NUMBER: FROM: DATE: `3— 17-0 RE: Fax Transmittal Sheet TOTAL NUMBER OF PAGES INCLUDING COVER SHEET- IF THERE ARE ANY PROBLEMS WITH THIS TRANSMISSION, PLEASE CALL 252-441-2113 OUR FAX NUMBER IS: 252- 41.0965 7M3 COMMENTS: Q2M29Q &,ff STATEHEFIT owrAtN pnrvxEomAm omF o At mroMATKw N07:FYSErcE t a*vwiay F SFAXBYMSTAwAwPLEASEDoAorb SEAtrNATEA15TRIBUTEORcopyf783FAx surwri+v ^Land Pfanrdrg P.O. Bm 3989, 115 W. SaW C14 &. PGA peH HWS. NC 27948 Takph1 : 2&2-ao.2i13 Fax: 252-441-0965 03/17/2006 16:26 2524410965 ALBEMARLE & ASSOC PAGE 02 lbemarle & ASSOCIATES, LTD. March 17, 2006 North Carolina Division of Water Quality Washington Regional Office 943 Washington Square Mall Washington, NC 27889 AT -TN: Ms. Amy L- Franklin RE, Sto mwater Review SW7060117 cads Hotel Dare County Dear Ms. Franklin: Per our meeting today on the site of the above referenced project, we will place a note on the plans directing the contractor to remove and replace with suitable soil any debris found in the area of as well as underlying the infittration basin. We will be sending you two (2) copies of the revised plan for your records. Per our conversations, it is our understanding that the approved permit will be forthcoming upon receipt of this letter. Thank you for your cooperation with this project. Should you have further questions or comments regarding this project please do not hesitate to call me. Jared L. Madewell, PE Project Engineer cc: 5509D Client Enginouring — Sumoying -- Land Planning P.O. Box 3909. 115 W. Saint Clair St. Kid Devil Hills. NC 2794E Telephone: 252-441-2113 Fax: 262-441-0965 Fdrm D61-MP-1 f;W70r0011Q 1. APPLICANT a. Landowner: APPLICATION (ro be completed by all applicants) b. City, to community or landmark Mrs �/ �/ Name Krt/AI11-FQAn10Ey 11t� Address 'Po Lynx Z4DS City _-PlAr'rm n State M, Zip cM.6q Day Phone-y`J3-(ab7y Fax b. Authorized Agent: Name AUL) ✓'lWLF u ASSOGA'7t-_S, LED Address f 0 WX ,3R98 City K,L- Drt//L- At45 State AIL_ Zip Day Phone c. Project name (if an5/5 #07i Av7E: P~ wilt be irrred w emm oflmdowner(r), md/or proNct u . 2. LOCATION OF PROPOSED PROJECT a. County . WE c. Street address or secondary road number _rJ21() -, r)')a2 t), "Da PTa/L d. IS proposed work within city limits or planning jurisdiction? ✓ Yes No e. Name of body of watff nearest project (e.g. river, creek, sound, bay) OANOKF. ()tWD 3. DESCRIPTION AND PLANNED USE OYPROPOSED PROJECT a. List all development activities you propose (e.g. building a home, motel, marina, bulkhead, pier, and excavation and/or filling activities. S09 s. 3 -sfo�.�v NoTE� 21174 _.23 PLRKin SOACr s -IIVDYrX Flu (.ANDw40) TA A4Cin/G JW V.4770iv Qr- SM 7D 7W PIS AW b. Is the proposed activity maintenance of an existing project, new work, or.both? /UF(,) (t b,c r c. Will the project be for public, private or commercial use? 2 Give a brief description of purpose, use, methods of construction and daily operations of proposed project. If more space is needed, please attach additional pages. C'ONSti-'U�TIo�/ sMcQAit.(Gt5 J7Fat9�/sN v fA1D✓F Form DCM-MP-1 4. LAND AND WATER CHARACTERISTICS a. Size of entire tract 1.35 A�R£5 b. Size of individual lot(s) -1%S Ir3 `} -X ql uf? sF c. Approximate elevation of tract above MHW or NWL 1i. d. Soil tyKs) and texture(s) of tract e. Vegetation on tract b er rasSF f. Man-made features now on tract 5FAA T-,-r11RF SrJNE��lr1 g. What is the CAMA land Use Plan land classification of the site? (coma@ the local land we p1m) Conservation Transitional ✓ Developed Community Rural Other h. How is the tract zoned b local government? GA C`rWJLAl FsmmfAr-1AL i. is the proposed project consistent with the applicable zoning? ✓ Yes No (Anach zmfAg coMWiance c-lificate. Vapphan61e1 Has a professional done for the tract? If yes, by whom?. archaeological assessment been Yes _V No k. Is the project located in a National Registered Historic District or does it involve a National Register listed or eligible property? _ Yes _ V No 1. Are there wetlands on the site? —Yes No Coastal (marsh) Other If yes, has a delineation been conducted? (Anal doaonenwion, iifavaUable) m. Describe existing wastewater treatment facilities. ALL fXimA& TANKS +-'11Q1A11UFIEL.D io B( REMnarh n. Describe location and type of discharges to waters of the state. (For example, surface runoff, sanitary wastewater, industrial/commercial effluent, 'wash down' and residential discharges) .� & nnn v Acrrn DISP SM U410r, A LE LI L SORcancv -M a SD' 0fefTATcD F11-70 _ o. Describe existing drinking water supply source. MIAMICAMI— SY57£M 5. ADDITIONAL INFORMATION In addition to the completed application form, the following items must be submitted: • A copy of the deed (with state application only) or other instrument under which the applicant claims title to the affected properties. If the applicant is not claiming to be the owner of said property. then forward a copy of the deed or other instrument under which the owner claims title, plus written permission from the owner to carry out the project. • An accurate, dated work plat (including plan view and cross -sectional drawings) drawn to scale in black ink on an 8 1/2' by 11' white paper. (Refer to Coastal Resources Commission Rule 77.0203 for a detailed description.) Please note that original drawings are preferred and only high quality copies will be accepted. Blue -line prints or other larger plats are acceptable only if an adequate number of quality copies .are provided by applicant. (Contact the U.S. Army Corps of Engineers regarding that agency's use of larger drawings.) A site or location map is a part of plat requirements and it must be sufficiently detailed to guide agency personnel unfamiliar with the area to the Form DCM-MP-1 site. Include highway or secondary road (SR) numbers. landmarks, and the like. • A Stormwater Certification, if one is necessary. • A list of the names and complete addresses of the adjacent waterfront (riparian) landowners and signed return receipts as proof that such owners have received a copy of the application and plats by certified mail. Such landowners must be advised that they have 30 days in which to submit comments on the proposed project to the Division of Coastal Management. Upon signing this form, the applicant further certifies that such notice has been provided. tNa ke AIC -1)46Af7MM1r tF -VA6P0RTAT7VP Almdress J ,� one Name Address Phone • A list of previous state or federal permits issued for work on the project tract. Include permit numbers, perm��itttee, and issuing dates. ft WATER 4 S PtiRmITS /ifs16 • A check for $250 made payable to the Department of Environment, Health, and Natural Resources (DEHNR) to cover the costs of processing the application. P A signed AEC hazard notice for projects in oceanfront and inlet areas. • A statement of compliance with the N.C. Environmental Policy Ad (N.C.G.S..113A -. 1 to 10) If the project involves the expenditure of public funds or use of public ►and's, attach a statement documenting compliance with the North Carolina Environmental Policy Act. 6. CERTIFICATION AND PERMISSION TO ENTER ON LAND I understand that any permit issued in response to this application will allow only the development described in the application. The project will be subject to conditions and restrictions contained in the permit. I certify that to the best of my knowledge, the proposed activity complies with the State of North Carolina's approved Coastal Management Program and will be conducted in a manner consistent with such program. I certify that I am authorized to grant, and do in fact, grant permission to representatives of state and federal review agencies to enter on the aforementioned lands in connection with evaluating information related to this permit application and follow-up monitoring of the project. I further certify that the information provided in this application is truthful to the best of my knowledge. This is the � day of -Jan W—.W& Print Name 12 e te- le Signature a4't'j tadorrer m Awhmiud AS.W Please indicate attachments pertaining to your proposed project. ✓� DCM MP-2 Excavation and Fill Information DCM MP-3 Upland Development _ DCM MP4 Structures Information _ DCM MP-5 Bridges and Culverts _ DCM MP-6 Marina Development NOTE: Please sign and date each attachment in the space provided at the bottom of each form. Form DCAI-MP-3 UPLAND DEVELOPMENT (Construction and/or land disturbing activities) Attach this form to Joint Application for CAMA Major Permit, Form DCM-MP-1. Be sure to complete all other sections of the Joint Application that relate to this proposed project. a. Type and number of buildings, facilities, units or structures proposed ONE 3- STDkY 1 �-unuT' F�mFt �. at L �. a is !: U • n: _ar/ t . c. Density (give the number of residential units and the units per acre) In IhnFi twins 4mAt- PU 08 WAO d. Size of area to be graded, filled or disturbed including roads, ditches, etc. 58,84D SF e. If the proposed project will disturb more than one acre of land, the Division of Land Resources must receive an erosion and sedimentation control plan at least 30 days before land disturbing activity begins. If applicable, has a sedimentation and erosion control plan been submitted to the Division of Land Resources? V_ Yes No If yes, date submitted 1.7(i Oti L List the materials (such as marl, paver stone, asphalt, or concrete) to be used for paved surfaces. t QNUCTL g. Give the percentage of the tract within 75 feet of MHW or NWL, or within 575 feet in the case of an Outstanding Resource Water, to be covered by impervious and/or built -upon surfaces, such as pavement, buildings, rooftops, or to be used for vehicular driveways or parking. _4U h. Projects that require a CAMA Major Development Permit may also require a Stormwater Certification. Has a site development plan been submitted to the Division of Environmental Management for review? _V Yes No If yes, date submitted 1 /13I0(d I. Describe proposed method of sewage disposal. 5,00o Wu.ON ADVANTU( TRfATnEM Sys M Wt7w A AX 100 rrtJM PODS Have the .facilities described in Item .i. above received state or local approval? YES - &CAL (Atw�h 4Mropriate docuvwwad-) . . k. Describe location and type of proposed discharges to waters of the state (for example, surface runoff, sanitary wastewater, industrial/commercial effluent, 'wash down' and residential discharges). .41APACE AUAJnFF Wl.v /ifT DISPERSf.D LIG/NG A LfUFL tl tfArk2 TO A S0� VEr. T'ATFt1 RffrR 1. Describe proposed drinking water supply source (e.g. well, community, public system, etc.) MlwvnUPAL <vt7f_M m. Will water be impounded? —Yes ✓ No If yes, how many acres? n. If the project is a oceanfront development, when was the lot(s) platted and recorded? n1.1A 5 AN Apptkmr t or Pro Name 97/ Signature i3r DIVISION OF COASTAL MANAGEMENT AGENCY FORM. FOR PERMIT APPLICATIONS do hereby authorize owner of the property located at: owner) I U" 1 1-(d V1Rf.IMA A41�C 115AIL 'I (property location/address) AG5 17ELq7,)iIIJC-� 9s9 (property location address) v (name ofperson or company acting as agent) to act as my agent for the purpose of obtaining any needed Coastal Area Management Act and/or Dredge and Fill Act permits, that may be needed for the proposed development at the above - indicated property, which entails: • / • 7• i V • • i� �u . �— (describe proposed development for which permits are being sought) This agency authorization is limited to the specific activities described above, and will expire on: APRIi: I , aoos (date on which agency authorization expires) z2 y,,�4 )dv4� (signature) (printed name of owner) (date) (title, if ofcer of corp. owner or trustee for property) Oasis Hotel Kellam -France, Inc., C/O Derek Hatchell t Dare,County Express Permit Review Program Project setting John DeLucia with Albemarle & Associates, Ltd., on behalf of Derek Hatchell for Kellam -France, Inc., LLC, has requested the attached application be processed under the Express Permit Review Program, for construction of a hotel under the name of Oasis Hotel. The project site is located at 7710 and 7722 Virginia Dare Trail in the Town of Nags Head, adjacent US 64 on Roanoke Sound and a manmade canal on Pond Island in Dare County, North Carolina. The proposed project site comprises t1.35 acres that include a t1.15 acre tract and an adjoining t0.20 acre tract., The larger tract was the site of the old Oasis Restaurant, which was completely destroyed by fire. The combined property is t450' wide by f140' deep and is comprised of sandy shell soil. The shoreline has been recently bulkheaded with the exception of t15' of riprap at the west end and ±75' of riprap at the east end. As previously stated, the site is the former location of the Oasis Restaurant that burned down several years ago. The building debris was removed from the site and only the asphalt parking lot with associated turf stone remains on the upland portion of the property. The existing parking lot accounts for an existing impervious coverage of ±15,307 ftz or ±26.0% of the entire site and will be removed prior to construction of the hotel. A ±200' long section of the bulkheaded shoreline has a 6' wide dock on the waterward side with a short pier ending in a ±30' octagon shaped covered gazebo. The remainder of the site is vegetated with upland grasses as well as a few yucca and pampas grass plants. Grading and filling activities are taking place on the site at this time as authorized under a CAMA Minor permit issued by the Town of Nags Head. The site is bordered on the west (upstream) side by an undeveloped lot with some riprap along the shoreline and is predominately vegetated with upland grasses as well as Spartina alterniflora and Juncus roemerianus along the shoreline. The site is bordered on the east (downstream) side by a bridge on US 64. The project site has an existing elevation of t4.3' above the normal water level (NWL). Roanoke Sound and the manmade canal at this location have been classified as SA by the Environmental Management Commission. The area is closed to the harvesting of shell fishing. Project description The applicant proposes to construct a t6,983 ftz hotel on the site. The hotel will consist of 17 suite units constructed on elevated pilings with concrete paved parking underneath. An adjoining t10,255 ftz concrete parking lot with an entrance drive off US 64 is proposed adjacent the new hotel. The applicant also proposes to install a pool with a t1,054 ft2 concrete deck around the perimeter. r li Oasis Hotel r Kellam -France, Inc., C/O Derek Hatchell Dare County Express Permit Review Program Page Two The total amount of impervious coverage for the site is ±20,136 ft2 or 34.2%. As proposed, the amount of impervious coverage within the 75' Coastal Shoreline Area of Environmental Concern (AEC) is t10,549 ft2 or 28.0%, which is below the 30% allowed by rule. With the exception of a 6' wide wooden access to the west end of the existing dock as well as ±19 ft2 of deck associated with a t8' by ±25' proposed wooden walkway adjacent the hotel, no other.activity is proposed within the 30' Coastal Shoreline Buffer The applicant proposes to install an Advantex System to handle the wastewater. This system has been approved by the Dare County Health Department under Permit No. 12703 (attached). The Town of Nags Head has approved the Soil Erosion and Sedimentation Plan submitted by the applicant in a letter dated 28 January 2006 (attached). Anticipated impacts The project as proposed will result in the disturbance of±58,840 ft2 of uplands as a result of the construction activities. The project as proposed will result in ±10,549 ft2 of impervious surface within the Coastal Shoreline AEC. David W. Moye — 28 March 2006 DIVISION OF COASTAL MANAGEMENT FIELD INVESTIGATION REPORT Express Permit Review Program 1. APPLICANT'S NAME: Oasis Hotel (C/O Hatchell Concrete, Inc.) 2. LOCATION OF PROJECT SITE: 7710 and 7722 Virginia Dare Trail on Roanoke Sound and a manmade canal in the Town of Nags Head on Pond Island in Dare County, North Carolina Photo Index - 2000: 185-2081; B-14, C-14 1995: 184-1913; Q-22, R-22, S-22 1898: 150-1; 0-7, P-7, Q-7 State Plane Coordinates - X: 3,001,699 Y: 798,813 GPS Rover File #U032209A Roanoke Island NE Quad. (lower left corner) 3. INVESTIGATION TYPE: CAMA 4. INVESTIGATIVE PROCEDURE: Dates of Site Visit - 03/22/06 Was Applicant Present - No 5. PROCESSING PROCEDURE: Application Received - 03/28/06 Office - Washington 6. SITE DESCRIPTION: (A) Local Land Use Plan - Dare County Land Classification From LUP - Developed (B) AEC(s) Involved: Estuarine Shoreline (C) Water Dependent: NO (D) Intended Use: Commercial (E) Wastewater Treatment: Existing - Septic (to be removed) Planned - Advantex treatment system with filter pods (F) Type of Structures: Existing - bulkhead, riprap, dock with gazebo, and parking lot Planned - hotel, parking lot, swimming pool, walkways (G) Estimated Annual Rate of Erosion: N/A Source - N/A 7. HABITAT DESCRIPTION: [AREA] DREDGED FILLED OTHER (A) Vegetated Wetlands N/A (B) Non -Vegetated Wetlands N/A (C) Other Highground ±58,840 ft2 (D) Total Area Disturbed: ±1.35 acre (t58,840 sq. ft.) (E) Primary Nursery Area: No (F) Water Classification: SA Open: No 8. PROJECT SUMMARY: The applicant proposes to construct a 17-unit hotel with parking and a pool on the site of the former Oasis Restaurant. ' Oasis Hotel CAMA Permit Narrative Lots 1 and unnumbered parcel, Paul L Gray Subdivision at Pond Island, Nags Head, Dare Co., NC The owners of this property would like to construct a 3-story, 17-unit hotel. This property previously consisted of a restaurant, which was destroyed completely by fire. The proposed hotel will have a building footprint of 6,983 square feet and 23 parking spaces. The owner of the property is Kellam -France, Inc. and Mr. Derek Hatchell is an incorporated owner of Kellam -France, Inc. All existing pavement and concrete will be removed and permanent vegetation will be , established. The only existing vegetation is turf grass. All existing wastewater tanks and drainfields will be removed and an Advantex System will be installed. Advantex treatment systems currently have an Imiovative Wastewater System Approval (IWS 2004-3) by the On -Site Wastewater Section of NCDENR's Department of Environmental Health. We will be obtaining site -specific approval for the system on this site from the Dare County Health Department. All surface runoff will be collected by drainage structures and conveyed via pipes to an infiltration basin which will con. A bypass device precedes the infiltration basin and will disperse the runoff exceeding a 1-1 /2 inch storin event through a 50-foot vegetated filter using a level spreader prior to discharge into the waters of the state. The site will be graded to prevent runoff into the adjacent waters. No fill material will be placed in the water;, however the property owner is requesting to bring fill to the site in order to bring the site up to the proper FEMA elevation. Silt fencing will be installed within the perimeter of the entire site to ensure no disturbance on the adjacent property and to contain sediment on the site. An Erosion and Sedimentation Control Plan has been included as well as the Erosion Control Permit as issued by the Town of Nags Head. There is no encroachment onto coastal wetlands. d I V• P. I •. I I I • AI •. �;I�ig1��l�;►�fl� j' 1� .r ,il IN jai PiRi A, PLAN Q Ibema' de l . SEc'E'lOn . 701r. Ibemarle &ASSOCIATES, LTD. Em�reemm- Nm-lac Planmru P.O Wbl Sa4C Odr SI. iNaro: (232)H1-2111 KODB4 HUIc Fnc [25i)1{1-0885 I® Dw9 NAb, NO 27918 vmw.slGl.a 1 "_ (00, ;I Ib marle & ASSOCIATES, LTD. Engineering - Surveying - Land. Plam 115 West St Clair St, P.O. Box 3989, KID Devil Hills, N.C. 27948 441-2113 JOB 055'09- Oasis Hotel SHEET OF CALCULATED BY ZN 1 DATE I —IO —Q K7 CHECKEDBY SCALE DATE / tOn , 37 � 1 �itste� �. Prt�o, Lim Planning and Development Department Town of Nags Head Post Office Box 99 Nags Head, North Carolina 27959 www.townofnagshead.net January 6, 2006 Mr. John DeLucia, P.E. Albemarle & Associates, LTD. P 0 BOX 3989 Kill Devil Hills, NC 27948 Dear Mr. DeLucia: Telephone 252-441-7016 FAX 252-441-4290 Please be advised that at their meeting on January 4, 2006, the Board of Commissioners of the Town of Nags Head reviewed the site plan/vested right application for the Oasis Hotel project to be located at 7710-7722 South Virginia Dare Trail. The Board voted to approve the application with the following conditions: 1) All non -Town permits related to this project shall be obtained prior to issuance of a building permit. 2) The lot recombination referenced in site plan note number 3 shall be completed prior to issuance of a building permit. You have two years from the date of Board of Commissioners approval (January 4, 2008) to obtain a building permit for this project. In any event, please contact Ronnie Ballance, Chief Building Inspector, to initiate the building permit process. In addition, a soil erosion and sedimentation control plan must be submitted and approved prior to any land disturbance. If you should have any questions, please don't hesitate to contact me at 252-449-2006. Sincerely, Timothy L. Wilson Planning and Development Director TLW/lcn cc: Ronnie Ballance, Chief Building Inspector b6marle & ASSOCIATES, LTD. March 17, 2006 North Carolina Division of Water Quality Washington Regional Office 943 Washington Square Mall Washington, NC 27889 ATTN: Ms. Amy L. Franklin RE: Stormwater Review SW7060117 Oasis Hotel Dare County Dear Ms. Franklin: l Per our meeting today on the site of the above referenced project, we will place a note on the plans directing the contractor to remove and replace with suitable soil any debris found in the area of as well as underlying the infiltration basin. We will be sending you two (2) copies of the revised plan for your records. Per our conversations, it is our understanding that the approved permit will be forthcoming upon receipt of this letter. Thank you for your cooperation with this project. Should you have further questions or comments regarding this project please do not hesitate to call me. Jared L. Madewell, PE Project Engineer cc: 5509D Client 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 Planning and Development Department Derek Hatchell Oasis LLC PO Box2405 Manteo NC 27954 Town of Nags Head Post Office Box 99 Nags Head, North Carolina 27959 www, to wno fnagshead. net January 28, 2006 Telephone 252.441-7016 FAX 252-441-4290 Re: Soil Erosion and Sedimentation Control Plan for Oasis Hotel, 7710-7722 S. Virginia Dare Tr. Dear Mr. Hatchell: This office has reviewed the Soil Erosion and Sedimentation Control Plan for the above referenced project. We find the plan, dated November 10, 2005 to be acceptable and issue this letter of approval with the conditions below. • Land disturbance is limited to less than one acre prior to receiving required permits from N.C. DENR, Division of Water Quality. • Provisions for ground cover shall be provided within 15 working days or 90 calendar days of completion of construction • Disturbed areas that are not hydoseeded or covered with excelsior matting shall be mulched with 4000 Ib./Ac. of straw and disked into place with mulch anchoring tool. Please make sure the contractor(s), on -site superintendent and financially responsible parties have copies of the final approved soil erosion and sedimentation control plan and this letter of approval with conditions. This letter serves notice that no person shall willfully resist, delay, or obstruct an authorized representative or employee of the Town while inspecting or attempting to inspect the site. Inspections will be made from time to time to ensure compliance with the plan. In accordance with Section 28.17 of the Town of Nags Head Code of Ordinances, revisions to the plan and its implementation may be required if it is determined that this plan is inadequate to control erosion and sedimentation. Protecting adjacent properties and the Town's natural resources are the goals of the Town's Erosion and Sedimentation Control Ordinance. If now, or during the process of construction, you have any questions or concerns, please don't hesitate to call me at 441-7016. S' erely Kim J. Allen Code Compliance Officer Cc: Tim Wilson, Planning and Development Director Jared Madewell, Albemarle Engineering OORE# AdvanTex® System Description and Treatment Process Commercial AdvanTex@ Treatment Systems are a multiple -pass, packed bed aerobic wastewater treatment technology specifically designed and engineered for long-term processing of wastewater. In the primary tanks, a 6,000-gallon septic tank and a 3,000-gallon filter tank, the raw sewage separates into three distinct zones: a scum layer, a sludge layer, and a clear layer. Heavy solids settle to the bottom to form the sludge layer, while the lighter material floats to the top to create the scum layer. Facultative and anaerobic digestion converts the organic matter to volatile organic acids while strict anaerobes ferment the volatile organic acids to gases (methane, carbon dioxide, etc.). Effluent from the clear zone is then passed through a Biotube® effluent filter before being transported to the recirculation - blend tank described below. AdvanTex Treatment Systems are capable of processing typical commercial AdvanTex influent wastewater to better than "secondary standards." Prior to the AdvanTex Treatment System, primary treatment of raw sewage is accomplished through appropriately sized primary septic tanks. After primary treatment, the effluent enters the 6,000-gallon recirculation -blend tank, where it blends with the contents of the tank. ProStep1m pump packages in the recirculation -blend tank transport blended effluent to a distribution manifold in the AdvaTex filter pod. Effluent percolates down through the textile media within the pod, where it is treated by naturally -occurring microorganisms, that populate the filter. After passing through the filter media, the treated effluent flows out of the filter pod through the filtrate return line that returns the effluent to the recirculating valve. The valve automatically splits or diverts the flow between the recirculation -blend tank and the final discharge and controls the liquid level within the tank. Final discharge is to a 3,000-gallon pump tank that doses an LPP drainfield. During extended periods of low forward flow into the system, 100% of the treated effluent is returned to the recirculation -blend tank. The recirculation -blend tank is set up so that incoming effluent from the primary septic tanks and filtrate from the AdvanTex system pods enter opposite the pump discharge to the pods so that mixing, blending, and dilution of the effluent occurs before being dosed onto the AdvanTex filter pods. Improvement Permit • 9� t n O County of Dare 12703 PO Boa Drawer 1000 Manteo, North Carolina 27954 "THE 0.0 �P Phone: (252) 475-5080 Dare County Health Department Improvement Permit (Septic Tank Sewage Disposal) Non -Transferable PIN: 070905186894 Parcel: 027429000 Permit# 12703 Owner Name: HATCHELL CONCRETE INC Permit Date: 2/28/2006 Owner Address: T/A OASIS Comm / Res: Commercial PO BOX 447 Owner Phone: (000)000-0000 MANTEO NC 27954 DBA: Location: 7710 S VA DARE TRL LotBIOCkSect: Lot: 1&UNUMBERED PARCEI Subdivision: PAUL L GRAY AT POND ISLAND Category of System: New Type of Tank: Precast Size of Tank: 9,000 Type of System: Type V-D Amount of Tile (feet): 600 Width of Ditch: TON 5' C Rock Under (inches): 6 Rock Above (inches): 2 No. of Bedrooms: 17 Sleeping Capacity (persons): 34 Gallons per Day: 2,975 Type of Water: Public Previous Permit#: 7112 Feet from Water Supply: 10 Feet from Body of Water:. 100 Feet from Property Line: 10 Feet from Building: 5 Comments: INSTALL SYSTEM AS DESIGNED BY JOHN DELUCIA, PE 16759, ALBERMARLE & ASSOCIATES. SYSTEM IS PERMITTED UDER RULE .1948 (d) TO REPLACE THE EXISING WASTEWATER SYSTEM. Note: This Permit is issued subject to all provisions of the ordinance governing the installation of septic systems. The person making the installation must notify the Health Department when the septic tank system is ready for inspection. If any septic tank system or part thereof is covered before being inspected and approved, it shall be uncovered at the direction of the Health Officer at the expense of the one Is y: Env' onm ata] Hea Specialist Date 1a6t. rlyflh;, Authorization for Wastewater System Construction County of Dare PO Box Drawer 1000 Manteo, North Carolina 27954 a �kTH CA0.0��2 Permit Date: 2/28/06 Parcel: 027429000 Owner Name: HATCHELL CONCRETE INC Owner Address: T/A OASIS PO BOX 447 MANTEO NC 27954 Location: 7710 S VA DARE TRL Subdivision: PAUL L GRAY AT POND ISLAND LotBlockSect: Lot: I&UNUMBERED PARCEL BIl 12703 Permit#: 12703 PIN: 070905186894 District: 14 Owner Phone: (000)000-0000 City/State: NAGS HEAD, NC Authorization By: Jack Flyth Date: 2/28/2006 1. Original Improvement Permit Number: 7112 2. Wastewater inspected by: - 3. Any alteration in soil conditions (including location of structures and appurtenances) or modification in use, design wastewater flow or wastewater characteristics as specified in the associated improvement permit and application, may subject this authorization and associated permit(s) to revocation. Other Conditions: PRECONSTRUCTION CONFERENCE WITH DCDPH, THE ENGINEER AND THE CONTRACTOR IS REQUIRED. CONTRACT WITH A SUBSURFACE WASTEWATER OPERATOR IS ALSO REQUIRED. Disclaimer: s permit does not relieve you of the responsibility to obtain any other necessary Federal, Stack or Local neHnitis). Owner Certification Authorized by County of Dare lbemarle & ASSOCIATES, LTD. March 17. 2006 Via Certified Mail Everett & Suzanne Tate P.O. Box 12 Nags Head, NC 27959 RE: Lots 1, and unnumbered parcel, Paul L. Gray at Pond Island, Roanoke Island, Dare County, North Carolina — Oasis Hotel Dear Mr. and Mrs. Tate: This letter is to inform you of a development being proposed along the above referenced property located east of your property located at 7724 S. Virginia Dare Trail, Nags Head, North Carolina. The proposed development will consist of a 17-unit hotel. Each unit is suite -like in layout. Enclosed is a copy of the proposed site plan being submitted to the North Carolina Department of Environment, Health, and Natural Resources — Division of Costal Management. You will have 30 days from receipt of this notice to provide any comment. Please direct any comments you may have to David Moye, CAMA Officer at (252) 948-3852. Should you have any questions, or require additional information in regards to this project, please don't hesifa_te�W contact me,directly as well. Engineer CAMA Permit Plan JMD/aws cc: File 5509D 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 lbemarle & ASSOCIATES, LTD. March 17, 2006 Via Certified Mail North Carolina Department of Transportation 1929 N. Road Street Elizabeth City, NC 27909 RE: Lots 1, and unnumbered parcel, Paul L. Gray at Pond Island, Roanoke Island, Dare County, North Carolina — Oasis Hotel To Whom It May Concern: This letter is to inform you of a bulkhead being proposed along the above referenced property, which is to the west of the property noted as a US158 right of way, located adjacent to the property at 7722 S. Virginia Dare Trail, Nags Head, North Carolina. The proposed development will consist of a 17-unit hotel. Each unit is suite -like in layout. Enclosed is a copy of the proposed site plan being submitted to the North Carolina Department of Environment Natural Resources — Division of Costal Management. You will have 30 days from receipt of this notice to provide any comment. Please direct any comments you may have to David Moye, CAMA Officer at (252) 948-3852. Should you have any questions, or require additional information in regards to this project, please don't hesitate to contact ryp directly as well. 3eLucia, PE Engineer Enc. CAMA Permit Plan JMD/aws cc: File 7426A 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