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HomeMy WebLinkAboutSW8080514_HISTORICAL FILE_20080711STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 O g 05 If DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS VHISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2008 07 YYYYMMDD 0�0� W ATF9oG Michael P. Easley, Governor William G. Ross Jr., Secretary 60 r North Carolina Department or Environment mid Natural Resources p Y Coleen 1-1. Sullins Director Division or Water Quality July 11, 2008 Riley S. Evans, Member/Manager Sankey Properties, LLC PO Box 847 Clarkton, NC 28433 Subject: Stormwater Permit No. SW8 080514 Westgate - Best Western Hotel & Restaurant High Density Commercial Project served by an Onsite Wet Pond and an Offsite System Brunswick County Dear Mr. Evans: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Westgate - Best Western Hotel & Restaurant on July 10, 2008. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2006-246 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 080514 dated July 11, 2008, for the construction of the subject project. This permit shall be effective from the date of issuance until July 11, 2018, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation. and -Maintenance requirements in this permit. Failure to establish an adequate system for' operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within sixty (60) 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 Christine Nelson, or me at (910) 796-7215. Sine ly, JL!� Edward Beck Regional Supervisor Surface Water Protection Section ENB/ can: S:\WQS\STORMWATER\PERMIT\080514.ju108 cc: David S. Hollis, Hanover Design Services, PA Brunswick County Building Inspections Jeff Phillips, Brunswick County Engineering Riley S. Evans, Vice President, Westgate Business Park Property Owners Association, Inc., PO Box 3121, Wilmington, NC 28406 Christine Nelson Wilmington Regional Office No"`ncamhna Central Files V atura//y North Carolina Division or Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796-7215 Customer Service Wilmington Regional Olrice Internet: awsv.ocgpt_cryualit rg Fax (910)350-2004 1-877-623-6743 An Equal Opportunity/Affirmative Action Employer— 50 % Recycled110% Post Consumer Paper State Stormwater Management Systems Permit No. SW8 080514 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT SERVED BY AN ONSITE WET POND AND AN OFFSITE STORMWATER CONTROL In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Riley S. Evans & Sankey Properties, LLC Westgate - Best Western Hotel & Restaurant Lots 2R and 13R, Towne Lake Drive, Leland, Brunswick County FOR THE construction, operation and maintenance of a wet detention pond and the construction of impervious areas with runoff to be treated in an offsite permitted stormwater facility in compliance with the provisions of Session Law 2006-246 and 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. A portion of the stormwater runoff from the site will be routed to an offsite wet detention pond operated and maintained by Riley S. Evans and Westgate Business Park Property Owners Association, Inc. under the terms and conditions set forth in the latest version of Permit No. SW8 990807. This permit shall be effective from the date of issuance until July 11, 2018, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.7 on page 3 of this permit. A portion of the runoff associated with this project has been approved to be discharged into an offsite stormwater management system permitted under SW8 990807, as described in Section 1.7 on page 3 of this permit. The onsite and offsite stormwater controls have been designed to handle the runoff from 47,650 square feet and 54,185 square feet of impervious area, respectively. Page 2 of 9 State Stormwater Management Systems Permit No. SW8 080514 3. The tract will be limited to the amount of built -upon area indicated in Section 1.7 on page 3 of this permit, and per approved plans. The built -upon area for the future development is limited to 1,549 square feet for the onsite stormwater system. The maximum built -upon area allotted to this development to drain to the offsite stormwater system by Stormwater Management Permit No. SW8 990807, is 54,185 square feet. This project proposes 51,775 square feet of impervious area to drain to the offsite stormwater system. The amount of built -upon area available for future development within this lot to drain to the offsite stormwater system is 2,410 square feet. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. 6. The built -upon areas associated with this project shall be located at least 30 feet landward of all perennial and intermittent surface waters. 7. The following design criteria have been provided in the onsite and offsite wet detention pond and must be maintained at design condition: Onsite Offsite SW8 080514 SW8 990807 a. Drainage Area, acres: 2.89 19.3 Onsite, ft2: 68,073 840,708 Offsite, ft2: 0 none b. Total Impervious Surfaces, ft2: 47,650 635,976 Onsite, ft2: 46,101 100,188 Future, ft2: 1,549 0 Offsite, ft2 (BUA = 85% of lot area):0 535,788 (12 lots) c. Design Storm, inches: 1.5 1.0 d. Pond Depth, feet: 10 (4.1 average) 7.5 e. TSS removal efficiency: 90% 90% f. Permanent Pool Elevation, FMSL: 11.0 9.0 hPermanent Pool Surface Area, ft2: 4,130 26,530 . Permitted Storage Volume, ft3: 6,633 57,075 i. Temporary Storage Elevation, FMSL: 12.2 11.0 j. Predevelopment 1-yr 24-hr discharge rate, ft3/S: 1.03 n/a k. Controlling Orifice: VO pipe YO pipe I. Post development treatment volume discharge rate, ft31s: 0.02 n/a m. Permanent Pool Volume, ft3: 17,008 50,000 n. Permitted Forebay Volume, ft3: 3,440 10,000 o. Fountain Horsepower, HP: n/a 1/6 p. Receiving Stream/River Basin: Jackeys Creek / Cape Fear q. Stream Index Number: 18-77-3 r. Classification of Water Body: "C, Sw" It. SCHEDULE OF COMPLIANCE The onsite and offsite stormwater management systems shall be constructed in their entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. Page 3 of 9 State Stormwater Management Systems Permit No. SW8 080514 During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. The permittee is responsible for keeping the stormwater collection system on the lot clear of debris, and must control the sediment on the lot in accordance with the requirements of the NC Erosion and Sediment Control Design Manual. 4. The permittee and Riley S. Evans and Westgate Business Park Property Owners Association, Inc. shall at all time provide the operation and maintenance necessary to assure the permitted stormwater systems 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. Mowin.9 and re -vegetation of slopes and the vegetated filter strip. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, level spreader, filter strip, catch basins and piping. q. Access to the outlet structure must be available at all times. The permittee and Riley S. Evans and Westgate Business Park Property Owners Association, Inc. must keep records of maintenance activities for both the onsite and offsite permitted BMPs and make them available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 6. The permittee shall submit to the Division of Water Quality an annual summary report of the maintenance inspection records for each BMP. The report shall summarize the inspection dates, results of the inspections, and the maintenance work performed at each inspection. 7. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 8. Decorative spray fountains are not be allowed in the onsite stormwater treatment system 9. The facilities shall be constructed as shown on the approved plans. This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. Page 4 of 9 State Stormwater Management Systems Permit No. SW8 080514 10. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted stormwater management facility, a certification must be received from an appropriate designer for the onsite system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Riley S. Evans and Westgate Business Park Property Owners Association, Inc., is responsible for providing, prior to issuance of a Certificate of Occupancy, and prior to operation of the permitted stormwater management facility, a certification must be received from an appropriate designer for the offsite system installed, certifying that the permitted facility has been installed in accordance with Stormwater Permit No. SW8 990807, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 11. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 12. 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 maximum 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. 13. The drainage features shown as a part of the stormwater management system on the approved plan shall not be filled in, altered, or piped by any party without first submitting a revision to the permit and receiving approval from the Division. 14. This lot is limited to the amount of built -upon area indicated in the supporting calculations and per the approved plans. The project drainage area for the offsite stormwater system must have a built -upon area less than or equal to the amount permitted under Stormwater Permit No. SW8 990807. A total built -upon area in excess of the maximum amount allowed by SW8 990807 will require a modification to the overall Permit. 15. The Director may determine that other revisions to the project should require a modification to the permit. 16. A plan revision with layout and grading plans must be submitted to and approved by the Division prior to the construction of any future development areas on the lot. Page 5 of 9 State Stormwater Management Systems Permit No. SW8 080514 17. 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. 18. Riley S. Evans and Westgate Business Park Property Owners Association, Inc., must record any deed restrictions as required by their permit, and they must verify that the proposed built -upon area does not exceed the allowable built -upon area. Once the lot transfer is complete, the built -upon area may not be revised without approval from the permittee, and responsibility for meeting the built -upon area limit is transferred to the individual property owner. 19. 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. III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change form, to the Division of Water Quality, signed by both parties, and accompanied by supporting documentation as listed on page 2 of the form. The project must be in good standing with the Division. 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. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee and/or Riley S. Evans and Westgate Business Park Property Owners Association, Inc. are responsible for taking immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 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. The permit issued shall continue in force and effect until revoked or terminated. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. Page 6 of 9 State Stormwater Management Systems Permit No. SW8 080514 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules and regulations contained in Session Law 2006- 246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al. 11. The permittee shall notify the Division of any name, ownership or mailing address changes at least 30 days prior to making such changes. Permit issued this the 11th day of July 2008. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for uoieen H. 5wiins, uirector Division of Water Quality By Authority of the Environmental Management Commission Page 7 of 9 State Stormwater Management Systems Permit No. SW8 080514 Westgate - Best Western Hotel & Restaurant Stormwater Permit No. SW8 080514 Brunswick Countv Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAL Page 8 of 9 State Stormwater Management Systems Permit No. SW8 080514 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. The offsite lot contains no more than the maximum permitted amount of built -upon area. 4. All the built -upon area associated with the project is graded such that the runoff drains to the system. 5. All roof drains are located such that the runoff is directed into the system. 6. The outlet/bypass structure elevations are per the approved plan. 7. The outlet structure is located per the approved plans. 8. Trash rack is provided on the outlet/bypass structure. 9. All slopes are grassed with permanent vegetation. 10. Vegetated slopes are no steeper than 3:1. 11. The inlets are located per the approved plans and do not cause short- circuiting of the system. 12. The permitted amounts of surface area and/or volume have been provided. 13. Required drawdown devices are correctly sized per the approved plans. 14. All required design depths are provided. 15. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 16. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Brunswick County Building Inspections Page 9 of 9 Hanover Design Services, P.A. Land Surveyors, Engineers, Land Planners JUL July 2, 2008 Ms. Christine Nelson, Environmental Engineer Wilmington Regional Office Water Quality Section Department of Environment and Natural Resources Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 27405-3845 Re: West Gate Best Western Hotel & Restaurant Brunswick County D W Q# S W 8 080514 Express Modification submittal Dear Christine: I have included our comments in corresponding order regarding your request for additional information for the West Gate project. 1) The stage -storage table has been corrected. 2) Details corrected as requested. 3) Enclosed as requested. Attached please find: • (2) Revised sets of plans • (2) Revised specifications • (2) Revised wet detention basin supplements • (2) Updated pond maintenance agreements [page 3] If you have any questions or require additional information, please do not hesitate to call me. Sincerely, David Brown Hanover Design Services dbrown@hdsilm.com 6309-BW-dwq-5.doc 1123 Floral Parkway Wilmington, N.C. 28403 Phone (910) 343-8002 Fax (910) 343-9941 _MEMO LETTER HANOVER DESIGN SERVICES, P.A. LAND SURVEYORS, ENGINEERS, LAND PLANNERS .^I 1123 FLORAL PKWY. WILMINGTON, NC 28403 PH. (910) 343.8002 FAX: (910) 343-9941 DATE Please reply I✓ No reply necessary Westgate — Best Western Stormwater Management Summary Sheet - Additional Calculation Summary for NCDENR / DWQ : To existing pond (SW8 990807): Previously permitted DA = 1.327 acres (57,804 sf) Lot 2 Previously permitted impervious 85% (49,130 sf) and 5,055 sf cul-de-sac roadway Total = 54,185 sf allowed to existing pond Proposed : DA = 57,804 sf (same area, different configuration) Impervious areas: Building area = 18,725 sf Parking BC = 30,060 sf Sidewalk = 2,990 sf Misc. future (other) = 2,225 sf Total = 54,000 sf proposed to existing pond To new pond (Pond No.1): Proposed : DA = 68,073 sf Impervious areas: Building area = 5,525 sf Parking BC = 38,048 sf Sidewalk = 2,528 sf Misc. future (other) = 1,549 sf Total = 47,650 sf proposed to new pond 6309-wg-bestweslerndwg2. doc Westgate — Best Western Wet detention / retention pond POND No. 1 Additional Calculation Summary for NCDENR / DWQ : WATER QUALITY CONSIDERATIONS - Impervious area calculations: See Project Data Sheet TOTAL IMPERVIOUS = 47,650 sf TOTAL AREA DRAINING TO POND = 68,073 sf SA REQUIRED: 47,650 / 68,073 = 0.7, or 70% At 4.1' average depth, 90% TSS removal, from chart — SA/DA factor = 6.0 68,073 x 0.01 x 6.0 = 4,085 sf SA REQUIRED At Elev. = 11.0 4,130 sf SA PROVIDED VOLUME REQUIRED: R=[(P)(Pj)(Rv)/12](A) SEE PAGES A.1 and A.2, "Controlling Urban Runoff: A Practical Manual for Planning and Designing Urban BMPs" (P)= 1.5" (Pj)= 0.9 (Rv)= 0.05 + 0.9(47,650/68,073) = 0.68 (A)= 68,073 R= [(1.5)(0.68)/12](68,073) = 5,790 cf REQUIRED STORAGE At Elev. = 12.2 = 6,633 cf PROVIDED STORAGE DRAWDOWN: Average head from storage elevation to orifice - 12.2-11.0/3=0.4 1" PVC drain to draw -down pond required storage volume: Orifice equation: Q = CA(2gh)A1/2 Q = 0.6(.0055)(64.4 X 0.4)A1/2 = 0.0167 cfs T = 396,000 sec. = 5 days OKAY FOREBAY REQUIREMENTS — Approximate required capacity = 17,000 X 20% = 3,400 cf Provided capacity = 3,440 cf OKAY CAPot 6309-WG-bestwesterndwg1.tloc SEAL ° 20007 g ` r. 02 �a;��l jp '$ •HIV+ r rrbrru n r a++`++ Westgate - Best Western STAGE - STORAGE TABLES: MAIN BODY OF POND - BUILD -OUT CONDITION Above WSI,L INCR. INCR. INCR. ELEV. AREA VOL. STORAGE STORAGE (rt) (so coo coo (ac-rt) 11.0 4,130 - 11.5 5,640 2,443 2,443 0.06 t2.0 6,140 2,945 5,388 0.12 12.20 6,318 1,246 6,633 0.15 13.0 7,030 5,339 11,973 0.27 14.0 7,300 7,165 19,138 0.44 15.0 7,585 7,443 26,580 0.61 16.0 8,500 8,043 34,623 0.79 STATE STORAGE VOLUME - slage6309-WC, 13 W I .xIs 6,633 0.15 Westgate - Best Western STAGE -STORAGE TABLES: MAIN BODY OF POND - Below WSEL MAIN INCR. INCR. ELEV. AREA VOL. STORAGE (ft) (st) (ci) (co FOREBAY 1 INCR. INCR. AREA VOL. STORAGE (so (ef) (co 11.0 2,865 - - 1,265 - 10.0 1,860 2,363 2,363 650 958 9.0 1,710 1,785 4,148 560 605 8.0 1,560 1,635 5,783 480 520 7.0 1,430 1,495 7,278 410 445 6.0 1,290 1,360 8,638 330 370 5.0 1,160 1,225 9,863 270 300 4.0 1,040 1,100 10,963 215 243 3.0 920 980 11,943 2.0 810 865 12,808 1.0 710 760 13,568 `- - ` 3 �ro� Noce Ib�_ Average depth= 4.1 (volume/SA) TOTAL SURFACE AREA - 4,130 FOREBAY - `COTAL POND VOLUME - 17,008 Percent Volume= TOTAL FOREBAY VOLUME - 3,440 PERCENT OF TOTAL - 20% storage-6309-WG-BW LxIs 958 1,563 2,083 2,528 2,898 3,198 3,440 20 % Permit No. SW8 990807 DIVISION OF WATER QUALITY PROJECT DATA SHEET West Crate Project Name: SW8 99o807 Permit Number: Brunswick County I.ocation: Mr. Nathan Sanders, President Applicant: Summer Tree Developer, Inc. Mailing Address: PO Box 3167 Wilmington, NC 28406 October 6, 1999 Application Date: Receiving Stream /Index #: lackeys Creek / CPF (18-77-3) Name of Classification of Water Body: "C Sw" chloride sampling If Class SA, P g results: n/a 1" Design Storm: Pond Depth, feet: 7.50 Permanent Pool Elevation, FMSL: 9.00 Total Impervious Surfaces, ft'--: 635,976 535,788 12 lots at (85% of lot area) ft2: Roads/Parking, ft2 Offshe Area entering Pond, ft2: none, per Engineer Required Surface Area, ft2: 21,710 Provided Surface Area, ft2: 26,530 Required Storage Volume, ft3: 51,201 Provided Storage Volume, ft': 57,110 Temporary Storage Elevation, FMSL: 11.00 Controlling Orifice: 3.0 � pipe 3 Hydraf low Plan View Project file: 6309-bestwesternl-rev-db.stm I OF file: WILMINGTON.IDF I No. Lines:5 105-05-2008 Hydraflow Summary Report Page 1 Line Line ID Flow Line Line Invert Invert Line HGL HGL Minor Dns No. rate size length EL Dn EL Up slope down up loss line lots) (in) (it) (it) (ft) N (ft) (ft) (ft) No. 1 OUT TO 7 8.09 18 c 24.0 11.50 13.00 6.250 13.00 14.09 0.05 End 2 7 TO 10 2.89 18 c 88.0 13.00 13.50 0.568 14.50 14.54 0.01 1 3 7 TO 8 3.47 18 c 114.0 13.50 14.50 0.877 15.00 15.21 0.03 1 4 8 TO 9 1.73 18 c 110.0 14.50 15.00 0.455 16.00 16.02 0.00 3 5 10 TO 11 1.73 18 c 140.0 13.50 14.00 0.357 15.00 15.03 0.00 2 Project File: 6309-bestwesternl-rev- b.sl-D-F File: WILMINGTON.IDF Total No. Lines: 5 Run Date: 05-05-2008 NOTES: c = circular; e = elliptical; b = box; Return period = 10 Yrs.; ' Indicates surcharge condition. Hydraflow Storm Sewer Tabulation Page 1 Station Len Drng Area Rnoff Area x C Tc Rain Total Cap Vet Pipe Invert Elev HGL Elev Grnd / Rim Elev Line ID coeff - (I)- flow full _ Line To Incr Total Incr Total Inlet Syst Size Slope Up Dn Up Dn Up Dn Line (ft) (ac) (ac) (C) (min) (min) (in/hr) (cfs) (cfs) (tt/s) (in) (%) (ft) (ft) (ft) (ft) (ft) (ft) 1 End 24.0 0.30 1.40 0.80 0.24 1.12 5.0 6.3 7.0 8.09 28.44 524 18 6.25 13.00 11.50 14.09 13.00 18.00 12.00 OUT TO 7 2 1 88.0 0.20 0.50 0.80 0.16 0.40 5.0 5.8 7.1 2.89 8.58 1.93 18 0.57 13.50 13.00 14.54 14.50 18.00 18.00 7 TO 10 3 1 114.0 0.30 0.60 0.80 0.24 0.48 5.0 5.6 7.1 3.47 10.65 3.08 18 0.88 14.50 13.50 15.21 15.00 18.50 18.00 7 TO 8 4 3 110.0 0.30 0.30 0.80 0.24 0.24 5.0 5.0 7.2 1.73 7.67 1.17 18 0.45 15.00 14.50 16.02 16.00 18.50 18.50 8 TO 9 5 2 140.0 0.30 0.30 0.80 0.24 0.24 5.0 5.0 7.2 1.73 6.80 1.16 18 0.36 14.00 13.50 15.03 15.00 17.00 18.00 10 TO 11 Project File: 6309-bestwesternl-rev-db.stm I-D-F File: WILMINGTON.IDF Total number of lines: 5 Run Date: 05-05-2008 NOTES: Intensity = 121.80 / (Tc + 23.50) ^ 0.84; Return period = 10 Yrs. ; Initial tailwater elevation = 13.00 (ft) Total flows limited to inlet captured flows. Hydraflow Inlet Report Page 1 Line Line ID A Inlet I C Q _ Q O G Junc Curb Inlet Grate Inlet Gutter Flow Byp No time CIA carry capt byp type line Ht (in) L (ft) area (sgft) L (ft) W (ft) So (Wft) W (ft) Sw Mitt) Sz MIMI depth (ft) spread (ft) (ac) (min) (in/hr) (cfs) (cfs) (cfs) (cfs) No 1 OUT TO 7 0.30 5.0 7.23 0.80 1.73 0.00 1.73 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.21 10.00 Offsite 2 7 TO 10 0.20 5.0 7.23 0.80 1.16 0.00 1.16 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.16 7.63 1 3 7 TO 8 0.30 5.0 7.23 0.80 1.73 0.00 1.73 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.21 10.00 1 4 8 TO 9 0.30 5.0 7.23 0.80 1.73 0.00 1.73 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.21 10.00 3 5 10 TO 11 0.30 5.0 7.23 0.80 1.73 0.00 1.73 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.21 10.00 2 Project File: 6309-bestwesternl-rev-db.stm I-D-F File: WILMINGTON.IDF Total number of lines: 5 Run Date: 05-05-2008 NOTES: Inlet N-Values = 0.012 ; Design depth for grates) = 0.3 (ft); Intensity = 121.80 / (Inlet time + 23.50) ^ 0.84; Return period = 10 Yrs. ; ' Indicates Known 0 added Hydraflow Hydraulic Grade Line Computations Page / Line Size Q Downstream Len Upstream - Check JL Minor coeff loss InvertF Depth Area Vel Vel EGL Sf Invert HGL Depth Area Vel Vel EGL Sf Ave Enrgyelev head elev elevlev headelev Sf loss (ft) (in) (cfs) (ft) (ft) (sgft) (ft/s) (ft) (ft) N (ft) (ft) (ft) (ft) (sgft) (fffs) (ft) (ft) (%) M (K) (ft) 1 18 8.09 11.50 13.00 1.50 1.77 4.58 0.33 13.33 0.507 24.0 13.00 14.09 1.09" 1.37 5.91 0.54 14.63 0.663 0.585 N/A 0.10 0.05 2 18 2.89 13.00 14.50 1.50' 1.77 1.64 0.04 14.54 0.065 88.0 13.50 14.54 1.04 1.30 222 0.08 14.61 0.096 0.080 0.071 0.10 0.01 3 18 3.47 13.50 15.00 1.50' 1.77 1.96 0.06 15.06 0.093 114 14.50 15.21 0.71" 0.82 4.21 0.27 15.49 0.447 0.270 N/A 0.10 0.03 4 18 1.73 14.50 16.00 1.50' .1.77 0.98 0.01 16.01 0.023 110 15.00 16.02 1.02 1.28 1.35 0.03 16.35 0.036 0.030 0.032 0.10 0.00 5 18 1.73 13.50 15.00 1.50' 1.77 0.98 0.01 15.01 0.023 140 14.00 15.03 1.03 1.29 1.34 0.03 15.06 0.035 0.029 0.041 0.10 0.00 Project File: 6309-bestwesteml-rev-db.stm I-D-F File: WILMINGTON.IDF Total number of lines: 5 Run Date: 05-05-2008 NOTES: Initial tailwater elevation = 13 (ft) , ' Crown depth assumed., " Critical depth assumed. Hydraflow Plan View Project file: 6309-bestwestern2-rev-db.stm I IDF file: WILMINGTON.IDF I No. Lines: 22 105-05-2008 Hydraflow Summary Report Page 1 Line Line ID Flow Line Line Invert Invert Line HGL HGL Minor Dns No. rate size length EL Dn EL Up slope down up loss line (cfs) (in) (ft) (tt) (ft) N (ft) (8) (tt) No. 1 1 TO 2 104.8 48 c 60.0 8.00 11.00 5.000 12.00 14.03 0.16 End 2 2 TO 3 70.35 42 c 53.0 11.55 12.65 2.075 15.05 15.22 0.13 1 3 3 TO 4 62.66 36 c 134.0 13.20 15.90 2.015 16.20 18.42 0.15 2 4 4 TO 5 56.79 36 c 263.0 15.90 17.05 0.437 18.90' 20.81 0.10 3 5 5 TO 6 35.34 30 c 255.0 17.60 18.40 0.314 20.91' 22.80' 0.08 4 6 3 TO 3.A 2.31 18 c 40.0 14.80 15.00 0.500 16.30 16.31 0.00 2 7 5 TO 5.A 15.61 18 c 30.0 18.65 18.75 0.333 20.91' 21.57' 0.12 4 8 6 TO 6.A 14.13 24 c 53.0 18.90 19.10 0.377 22.88' 23.09' 0.03 5 9 2 TO 7 8.54 24 c 322.0 11.00 15.60 1.429 14.19 16.64 0.04 1 10 7 TO 8 7.06 18 c 193.0 16.10 16.60 0.259 17.60' 18.47' 0.02 9 11 7 TO 7.A 0.50 18 c 35.0 16.15 16.25 0.286 17.65 17.65 0.00 9 12 8 TO 6.A 6.05 18 c 35.0 16.60 16.70 0.286 18.50' 18.61' 0.02 10 13 2 TO 9 24.09 . 24 c 119.0 14.00 14.25 0.210 16.00' 17.35' 0.09 1 14 9 TO 9.A 1.73 18 c 42.0 14.80 15.00 0.476 17.44' 17.45' 0.00 13 15 9 TO 9.13 14.96 18 c 71.0 15.90 16.05 0.211 17.44' 18.88' 0.11 13 16 8.10 18 c 100.0 18.40 18.70 0.300 22.88' 23.48' 0.03 5 17 EXIST TO 7.73 18 c 32.0 16.05 16.15 0.313 19.00' 19.14' 0.03 15 18 1 TO 2 7.73 18 c 40.0 16.15 16.30 0.375 19.17' 19.36' 0.03 17 19 2 TO 3 7.73 18 c 215.0 16.30 16.50 0.093 19.39' 20.38' 0.03 18 20 3 TO 4 5.20 18 c 112.0 16.50 16.60 0.089 20.41' 20.64' 0.01 19 21 4 TO 5 4.05 16 c 98.0 16.60 16.70 0.102 20.66' 20.78' 0.01 20 22 5 TO 6 2.31 18 c 188.0 16.70 16.90 0.106 20.79' 20.87' 0.00 21 Project File: 6309-bestwestern2-rev- b.sl-D-F File: WILMINGTON.IDF Total No. Lines: 22 Run Date: 05-05-2008 NOTES: c = circular; e = elliptical; b = box; Return period = 10 Yrs.; ' Indicates surcharge condition. Hydraf low Storm Sewer Tabulation Page 1 Station Len Drng Area x C Tc Rain Total Cap Vel "Pipe Invert Elev HGL Elev- Grnd! Rim Elev line ID coeff (1) flow full ToIncr Line(ac)(C) NeaRnoff Incr Total Inlet Syst Size Slope Up Dn Up Dn Up Dn (min) (min) (in/hr) (cfs) (cfs) (tt1s) (in) (%) (ft) (ft) (ft) (ft) (ft) (ft) 1 End 60.0 0.40 20.80 0.80 0.32 16.64 14.0 33.4 4.0 104.8 321.2 9.31 48 5.00 11.00 8.00 14.03 12.00 18.06 8.00 1 TO 2 2 1 53.0 0.20 14.10 0.80 0.16 11.28 13.5 32.5 4.1 70.35 144.9 8.31 42 2.08 12.65 11.55 15.22 15.05 17.81 18.06 2 TO 3 3 2 134.0 2.20 13.50 0.80 1.76 10.80 13.0 30.3 4.2 62.65 94.67 9.37 36 2.01 15.90 13.20 18.42 16.20 20.54 17.81 3 TO 4 4 3 263.0 1.20 11.30 0.80 0.96 9.04 11.5 25.9 4.5 56.79 44.10 8.03 36 0.44 17.05 15.90 20.81 18.90 22.82 2054. 4 TO 5 5 4 255.0 2.60 7.40 0.80 2.08 5.92 10.0 21.7 4.9 35.34 22.97 720 30 0.31 18.40 17.60 22.80 23.91 23.11 22.82 5 TO 6 6 2 40.0 0.40 0.40 0.80 0.32 0.32 5.0 5.0 7.2 2.31 7.43 1.36 18 0.50 15.00 14.80 16.31 15.30 17.92 17.81 3 TO 3.A 7 4 30.0 2.70 2.70 0.80 2.16 2.16 5.0 5.0 7.2 15.61 6.06 8.94 18 0.33 18.75 18.65 21.57 23.91 22.82 22.82 5 TO 5.A 8 5 53.0 2.80 2.80 0.80 2.24 2.24 10.0 10.0 6.3 14.13 13.89 4.50 24 0.38 19.10 18.90 23.09 2.88 23.11 23.11 6 TO 6.A 9 1 322.0 0.20 1.70 0.80 0.16 1.36 11.5 13.8 5.8 8.54 27.03 3.96 24 1.43 15.60 11.00 16.64 14.19 19.19 18.06 2 TO 7 10 9 193.0 0.20 1.40 0.80 0.16 1.12 10.0 10.6 6.2 7.06 5.34 4.00 18 026 16.60 16.10 18.47 17.60 19.63 19.19 7 TO 8 11 9 35.0 0.10 0.10 0.80 0.08 0.08 10.0 10.0 6.3 0.50 5.61 0.29 18 0.29 1625 16.15 17.65 17.65 19.19 19.19 7 TO 7.A 12 10 35.0 120 1.20 0.80 0.96 0.96 10.0 10.0 6.3 6.05 5.61 3.43 18 0.29 16.70 16.60 18.61 18.50 19.63 19.63 8 TO &A 13 1 119.0 0.30 4.60 0.80 0.24 3.68 10.0 17.6 5.3 24.09 10.37 7.67 24 0.21 14.25 14.00 17.35 16.00 17.94 18.06 2 TO 9 14 13 42.0 0.30 0.30 0.80 0.24 0.24 5.0 5.0 7.2 1.73 7.25 0.98 18 0.48 15.00 14.80 17.45 17.44 17.89 17.94 9 TO 9.A 15 13 71.0 2.60 4.00 0.80 2.08 3.20 10.0 16.4 5.4 14.96 4.83 8.47 18 0.21 16.05 15.90 18.88 17.44 18.03 17.94 9 TO 9.B 16 5 100.0 2.00 2.00 0.80 1.60 1.60 20.0 20.0 5.1 8.10 5.75 4.58 /8 0.30 18.70 18.40 23.48 22.88 23.11 23.11 17 15 32.0 0.00 1.40 0.00 0.00 1.12 0.0 15.9 5.5 7.73 6.36 4.37 16 0.31 16.15 16.05 19.14 19.00 19.20 18.03 EXIST TO 1 18 17 40.0 0.00 1.40 0.00 0.00 1.12 0.0 15.2 5.6 7.73 6.97 4.37 18 0.37 16.30 16.15 19.36 19.17 19.20 19.20 1 TO 2 19 18 215.0 0.50 1.40 0.80 0.40 1.12 10.0 11.6 6.1 7.73 3.47 4.37 18 0.09 16.50 16.30 20.38 19.39 19.00 19.20 2 TO 3 20 19 112.0 020 0.90 0.80 0.16 0.72 5.0 9.8 6.3 5.20 3.40 2.95 18 0.09 16.60 16.50 20.64 20.41 19.80 19.00 3 TO 4 21 20 98.0 0.30 0.70 0.80 0.24 0.56 5.0 8.1 6.6 4.05 3.63 2.29 18 0.10 16.70 16.60 20.78 20.66 19.80 19.80 4 TO 5 Project File: 6309-bestwestern2-rev-db.stm I-D-F File: WILMINGTON.IDF Total number of lines: 22 Run Date: 05-05-2008 NOTES: Intensity = 121.80 / (Tc + 23.50) ^ 0.84; Return period = 10 Yrs. ; Initial tailwater elevation = 12.00 (ft) Total flows limited to inlet captured flows. Hydraflow Storm Sewer Tabulation Page 2 Station Len (ft) Drng Area Rnoff coeff (C) Area x C Tc Rain (1) (in/hr) Total flow (cfs) Cap full (cfs) Val (ft/s) -Pipe Invert Elev HGL Elev Grnd / Rim Elev Line ID_ Line To Line Incr (ac) Total (ac) Incr Total - Inlet (min) Syst (min) Size (in) Slope (%) Up (ft) Dn (ft) Up (ft) Dn (ft) Up (ft) Dn (ft) 22 21 138.0 0.40 0.40 0.80 0.32 0.32 5.0 5.0 7.2 2.31 3.71 1.31 18 0.11 16.90 16.70 20.87 2D.79 19.80 19.80 5 TO 6 Project File: 6309-bestwestem2-rev-db.stm I-D-F File: VVILMINGTON.IDF Total number of lines: 22 Run Date: 05-05-2008 NOTES: Intensity = 121.80 / (Tc + 23.50) ^ 0.94; Return period = 10 Yrs. ; Initial tailwater elevation = 12.00 (ft) Total flows limited to inlet captured flows. Hydraflow Inlet Report Page 1 Line Line ID A InletT t7 = o o 0 Junc Curb Inlet Grate Inlet - Gutter Flow Byp No timeCIA carry capt byp type linHt Larea L W So W Sw Sx depth spread No (ac) (min)(cfs) (cfs) (cfs) (cfs (in) (ft) (sgft) (ft) (ft) (ft/ft) (ft) (ft/ft) (ft/ft) (ft) (ft) 1 1 TO 2 0.40 14.0 5.73 0.80 1.84 0.00 1.84 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.17 4.05 Offsite 2 2 TO 3 0.20 13.5 5.80 0.80 0.93 4.45 5.38 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.34 8.10 1 3 3 TO 4 2.20 13.0 5.87 0.80 10.33 0.00 5.87 4.45 Comb 6.0 3.00 3.09 2.98 1.98 0.019 2.00 0.042 0.021 0.33 13.71 2 4 4 TO 5 1.20 11.5 6.08 0.80 5.83 0.00 5.83 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 i 0.021 0.36 8.57 3 5 5 TO 6 2.60 10.0 6.31 0.80 13.12 0.00 13.12 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.61 14.52 4 6 3 TO 3.A 0.40 5.0 7.23 0.80 2.31 0.00 2.31 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.20 4.76 2 7 5 TO 5.A 2.70 5.0 7.23 0.80 15.61 0.00 15.61 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.69 16.43 6 8 6 TO 6.A 2.80 10.0 6.31 0.80 14.13 0.00 14.13 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.64 1524 7 9 2 TO 7 0.20 11.5 6.08 0.80 0.97 0.00 0.97 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.11 2.62 1 10 7 TO 8 0.20 10.0 6.31 0.80 1.01 0.00 1.01 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.11 2.62 9 11 7 TO 7.A 0.10 10.0 6.31 0.80 0.50 0.00 0.50 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.07 1.67 6 12 8 TO 8.A 1.20 10.0 6.31 0.80 6.05 0.00 6.05 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.37 8.81 11 13 2 TO 9 0.30 10.0 6.31 0.80 1.51 5.89 7.40 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.42 10.00 1 14 9 TO 9.A 0.30 5.0 7.23 0.80 1.73 0.00 1.73 0.00 Comb 6.0 3.00 3.09 2.98 1.98 Sag 2.00 0.042 0.021 0.16 3.81 2 15 9 TO 9.B 2.60 10.0 6.31 0.80 13.12 0.00 7.23 5.89 Comb 6.0 3.00 3.09 2.98 1.98 0.012 2.00 0.042 0.021 0.39 16.57 13 16 2.00 20.0 5.06 0.80 8.10 0.00 8.10 0.00 Grate 0.0 0.00 1.65 2.00 2.00 Sag 1.50 0.005 0.005 0.83 166.77 5 17 EXIST TO 1 0.00 0.0 0.00 0.00 0.00 0.00 0.00 0.00 MH 0.0 0.00 0.00 0.00 0.00 0.000 0.00 0.000 0.000 0.00 0.00 15 18 1 TO 2 0.00 0.0 0.00 0.00 0.00 0.00 0.00 0.00 MH 0.0 0.00 0.00 0.00 0.00 0.000 0.00 0.000 0.000 0.00 0.00 17 19 2 TO 3 0.50 10.0 6.31 0.80 2.52 0.00 2.52 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.27 12.84 15 20 3 TO 4' 0.20 5.0 7.23 0.80 1.16 0.00 1.16 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.16 7.63 19 21 4 TO 5 0.30 5.0 7.23 0.80 1.73 0.00 1.73 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.21 10.00 20 22 5 TO 6 0.40 5.0 7.23 0.80 2.31 0.00 2.31 0.00 Grate 0.0 0.00 2.00 2.00 2.00 Sag 2.50 0.021 0.021 0.25 12.12 21 Project File: 6309-bestwestem2-rev-db.stm I-D-F File: WILMINGTON.IDF Total number of lines: 22 Run Date: 05-05-2008 NOTES: Inlet N-Values = 0.013 ; Design depth for grate(s) = 0.3 (ff); Intensity = 121.80 / (Inlet time + 23.50) ^ 0.84; Return period = 10 Yrs. ; ` Indicates Known Q added Hydraflow Hydraulic Grade Line Computations Page 1 Line Size o Downstream Len - Upstream Check JL Minor coeft loss Invert HGL Depth Area Vel Vel EGL Sf Invert HGL Depth Area Val Vel EGL Sf Ave Enrgy elev elev head elev elev elev head elev Sf loss (in) (cfs) (ft) (ft) (ft) (sqft) (ft/s) (ft) (ft) N (ft) (ft) (ft) (ft) (sqft) (ft/s) (ft) (ft) M) N (ft) (K) (ft) 1 48 104.8 8.00 12.00 4.00 12.56 8.34 1.08 13.08 0.533 60.0 11.00 14.03 3.03 10.21 10.27 1.64 15.67 0.627 0.580 0.348 0.10 0.16 2 42 70.35 11.55 15.05 3.50' 9.62 7.31 0.93 15.88 0.489 53.0 12.65 15.22 2.57" 7.57 9.30 1.34 16.56 0.619 0.554 N/A 0.10 0.13 3 36 62.66 13.20 16.20 3.00' 7.07 8.87 1.22 17.42 0.883 134 15.90 18.42 2.52 6.35 9.88 1.52 19.94 0.845 0.864 1.158 0.10 0.15 4 36 56.79 15.90 18.90 3.00' 7.07 8.04 1.00 19.90 0.725 263 17.05 20.81 3.00 7.07 8.03 1.00 21.31 0.725 0.725 1.907 0.10 0.10 5 30 35.34 17.60 20.91 2.50 4.91 7.20 0.81 21.71 0.743 255 18.40 22.80 2.50 4.91 7.20 0.81 23.51 0.743 0.743 1.894 0.10 0.08 6 18 2.31 14.80 16.30 1.50' 1.77 1.31 0.03 16.33 0.048 40.0 15.00 16.31 1.31 1.64 1.41 0.03 16.35 0.044 0.046 0.018 0.10 0.00 7 18 15.61 18.65 20.91 1.50 1.77 8.84 1.21 22.12 2.211 30.0 18.75 21.57 1.50 1.77 8.83 1.21 22.79 2.210 2.211 0.663 0.10 0.12 8 24 14.13 18.90 22.88 2.00 3.14 4.50 0.31 23.20 0.390 53.0 19.10 23.09 2.00 3.14 4.50 0.31 23.40 0.390 0.390 0.207 0.10 0.03 9 24 8.54 11.00 14.19 2.00 3.14 2.72 0.11 14.31 0.143 322 15.60 16.64 1.04" 1.64 5.20 0.42 17.06 0.508 0.325 N/A 0.10 0.04 10 18 7.06 16.10 17.60 1.50' 1.77 4.00 0.25 17.85 0.453 193 16.60 18.47 1.50 1.77 4.00 0.25 18.72 0.452 0.453 0.873 0.10 0.02 11 18 0.50 16.15 17.65 1.50' 1.77 0.29 0.00 17.65 0.002 35.0 16.25 17.65 1.40 1.72 0.29 0.00 17.65 0.002 0.002 0.001 0.10 0.00 12 18 6.05 16.60 18.50 1.50 1.77 3.43 0.18 18.68 0.333 35.0 16.70 18.61 1.50 1.77 3.43 0.18 18.80 - 0.332 0.332 0.116 0.10 0.02 13 24 24.09 14.00 16.00 2.00' 3.14 7.67 0.91 16.91 1.135 119 14.25 17.35 2.00 3.14 7.67 0.91 18.27 1.135 1.135 1.351 0.10 0.09 14 18 1.73 14.80 17.44 1.50 1.77 0.98 0.01 17.46 0.027 42.0 15.00 17.45 1.50 1.77 0.98 0.01 17.47 0.027 0.027 0.011 0.10 0.00 15 18 14.96 15.90 17.44 1.50 1.77 8.47 1.11 18.56 2.030 71.0 16.05 18.88 1.50 1.77 8.46 1.11 20.00 2.029 2.030 1.441 0.10 0.11 16 18 8.10 18.40 22.88 1.50 1.77 4.58 0.33 23.21 0.595 100 18.70 23.48 1.50 1.77 4.58 0.33 23.80 0.594 0.595 0.595 0.10 0.03 17 18 7.73 16.05 19.00 1.50 1.77 4.37 0.30 19.29 0.461 32.0 16.15 19.14 1.50 1.77 4.37 0.30 19.44 -0.461 0.461 0.148 0.10 0.03 18 18 7.73 16.15 19.17 1.50 1.77 4.37 0.30 19.47 0.461 40.0 16.30 19.36 1.50 1.77 4.37 0.30 19.65 0.461 0.461 0.185 0.10 0.03 19 18 7.73 16.30 19.39 1.50 1.77 4.37 0.30 19.68 0.461 215 16.50 20.38 1.50 1.77 4.37 0.30 20.68 0.461 0.461 0.992 0.10 0.03 20 18 5.20 16.50 20.41 1.50 1.77 2.95 0.13 20.54 0.209 112 16.60 20.64 1.50 1.77 2.94 0.13 20.78 0.209 0.209 0.234 0.10 0.01 21 18 4.05 16.60 20.66 1.50 1.77 2.29 0.08 20.74 0.127 98.0 16.70 20.78 1.50 1.77 2.29 0.08 20.86 0.127 0.127 0.124 0.10 0.01 Project File: 6309-bestwestern2-rev-db.stm I-D-F File: W ILMINGTON.IDF Total number of lines: 22 Run Date: 05-05-2008 NOTES: Initial tailwater elevation = 12 (ft) , ' Crown depth assumed., " Critical depth assumed. Hydraflow Hydraulic Grade Line Computations Page 2 Line Size (in) o (CIS) Downstream Len (ft) - Upstream - Check JL coeff (K) Minor loss (ft) Invert elev (11) HGL elev (ft) Depth (ft) Area (sgft) VeI (ft1s) Val head (ft) EGL elev (ft) Sf M Invert elev (ft) HGL elev (ft) Depth (ft) Area (sgft) Val (fits) Vel head (ft) EGL elev (tt) Sf ( % ) Ave Sf ( % ) Enrgy loss (ft) 22 18 2.31 16.70 20.79 1.50 1.77 1.31 0.03 20.82 0.041 188 16.90 20.87 1.50 1.77 1.31 0.03 20.39 0.041 0.041 0.078 0.10 0.00 Project File: 6309-bestwestern2-rev-db.stm I-D-F File: W ILMINGTON.IDF Total number of lines: 22 Run Date: 05-05-2008 NOTES: Initial tailwater elevation = 12 (ft) , ' Crown depth assumed., " Critical depth assumed. Project: 6309-Westgate bestwes eYfdli:G@'Ahanover.IDF 9 hyd's 07-02-2008 Hydrograph Summary Report Page 1 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to peak (min) Volume (cuft) Return period (yrs) Inflow hyd(s) Maximum elevation (ft) Maximum storage (cuft) Hydrograph description 1 SCS Runoff 1.03 6 744 6,997 1 ---- ----- ------ lyr Predev-24hr 2 SCS Runoff 3.30 6 738 21,131 10 ---- ------ ----- 1Oyr Predev 3 SCS Runoff 5.71 6 738 36,352 100 ---- •----- ----- 100yr Predev 4 SCS Runoff 1.71 6 738 10,965 1 ---- ------ ------ tyr Postdev-24hr 5 SCS Runoff 4.29 6 738 27,414 10 ---- ----- ------ 10yr Postdev 6 SCS Runoff 6.78 6 738 43,920 100 ---- ------ ------ 100yr Postdev 7 Reservoir 0.42 6 798 9,599 1 4 12.14 6,038 tyr Post-Route-24h 8 Reservoir 2.99 6 762 26,042 10 5 12.66 9,541 1Oyr Post -Route 9 Reservoir 5.77 6 756 42,545 100 6 13.04 12,140 100yr Post -Route Proj. file: 6309-westgate-bestwe telbE.GPWewhanover.IDF Run date: 07-02-2008 Hydrograph Report Hyd. No. 1 1yr Predev-24hr Hydrograph type Storm frequency Drainage area Basin Sinpa Tc method Total precip. Storm duration = SCS Runoff = 1 yrs = 1.56 ac = 0.3 % = USER = 3.80 in = 24 hrs Hydrograph Discharge Table Page 1 English Peak discharge = 1.03 cfs Time interval = 6 min Curve number = 70 Hydraulic length = 400 ft Time of conc. (Tc) = 15 min Distribution = Type III Shape factor = 242 Total Volume = 6,997 cuft Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 11.20 0.01 14.40 0.17 17.60 0.08 20.80 0.05 11.30 0.02 14.50 0.17 17.70 0.07 20.90 0.05 11.40 0.03 14.60 0.17 17.80 0.07 21.00 0.05 11.50 0.04 14.70 0.16 17.90 0.07 21.10 0.05 11.60 0.05 14.80 0.16 18.00 0.07 21.20 0.05 11.70 0.08 14.90 0.15 18.10 0.07 21.30 0.05 11.80 0.13 15.00 0.15 18.20 0.06 21.40 0.05 11.90 0.21 15.10 0.15 18.30 0.06 21.50 0.04 12.00 0.40 15.20 0.14 18.40 0.06 21.60 0.04 12.10 0.69 15.30 0.14 18.50 0.06 21.70 0.04 12.20 0.92 15.40 0.14 18.60 0.06 21.80 0.04 12.30 1.01 15.50 0.13 18.70 0.06 21.90 0.04 12.40 1.03 << 15.60 0.13 18.80 0.06 22.00. 0.04 12.50 1.00 15.70 0.12 18.90 0.06 22.10 0.04 12.60 0.92 15.80 0.12 19.00 0.06 22.20 0.05 12.70 0.81 15.90 0.12 19.10 0.06 22.30 0.05 12.80 0.70 16.00 0.11 19.20 0.06 22.40 0.05 12.90 0.59 16.10 0.11 19.30 0.06 22.50 0.04 13.00 0.47 16.20 0.10 19.40 0.06 22.60 0.04 13.10 0.38 16.30 0.10 19.50 0.06 22.70 0.04 13.20 0.33 16.40 0.10 19.60 0.05 22.80 0.04 13.30 0.29 16.50 0.10 19.70 0.05 22.90 0.04 13.40 0.26 16.60 0.09 19.80 0.05 23.00 0.04 13.50 0.24 16.70 0.09 19.90 0.05 23.10 0.04 13.60 0.23 16.80 0.09 20.00 0.05 23.20 0.04 13.70 0.22 16.90 0.09 20.10 0.05 23.30 0.04 13.80 0.21 17.00 0.09 20.20 0.05 23.40 0.04 13.90 0.21 17.10 0.08 20.30 0.05 23.50 0.04 14.00 0.20 17.20 0.08 20.40 0.05 23.60 0.04 14.10 0.19 17.30 0.08 20.50 0.05 23.70 0.04 14.20 0.19 17.40 0.08 20.60 0.05 23.80 0.04 14.30 0.18 17.50 0.08 20.70 0.05 23.90 0.04 Continues on next page... Hydrograph Report Page 1 English Hyd. No. 2 10yr Predev Hydrograph type = SCS Runoff Peak discharge = 3.30 cfs Storm frequency = 10 yrs Time interval = 6 min Drainage area = 1.56 ac Curve number = 70 Basin Slone = 0.3 % Hydraulic length = 400 ft Tc method = USER Time of conc. (Tc) = 15 min Total precip. = 7.00 in Distribution = Type III Storm duration = 24 hrs Shape factor = 242 Total Volume = 21.131 cuR Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 9.50 0.04 12.70 2.41 15.90 0.29 19.10 0.14 9.60 0.04 12.80 2.03 16.00 0.28 19.20 0.14 9.70 0.05 12.90 1.65 16.10 0.27 19.30 0.14 9.80 0.06 13.00 1.30 16.20 0.26 19.40 0.13 9.90 0.07 13.10 1.03 16.30 0.25 19.50 0.13 10.00 0.07 13.20 0.87 16.40 0.24 19.60 0.13 10.10 0.08 13.30 0.75 16.50 0.23 19.70 0.13 10.20 0.09 13.40 0.68 16.60 0.23 19.80 0.13 10.30 0.10 13.50 0.64 16.70 0.22 19.90 0.13 10.40 0.11 13.60 0.60 16.80 0.22 20.00 0.13 10.50 0.12 13.70 0.58 16.90 0.21 20.10 0.12 10.60 0.13 13.80 0.55 17.00 0.21 20.20 0.12 10.70 0.15 13.90 0.53 17.10 0.21 20.30 0.12 10.80 0.16 14.00 0.51 17.20 0.20 20.40 0.12 10.90 0.18 14.10 0.49 17.30 0.20 20.50 0.12 11.00 0.19 14.20 0.47 17.40 0.19 20.60 0.12 11.10 0.21 14.30 0.46 17.50 0.19 20.70 0.12 11.20 0.23 14.40 0.44 17.60 0.18 20.80 0.12 11.30 0.26 14.50 0.43 17.70 0.18 20.90 0.11 11.40 0.30 14.60 0.42 17.80 0.17 21.00 0.11 11.50 0.34 14.70 0.40 17.90 0.17 21.10 0.11 11.60 0.40 14.80 0.39 18.00 0.17 21.20 0.11 11.70 0.53 14.90 0.38 18.10 0.16 21.30 0.11 11.80 0.74 15.00 0.37 18.20 0.16 21.40 0.11 11.90 1.04 15.10 0.37 18.30 0.15 21.50 0.11 12.00 1.66 15.20 0.36 18.40 0.15 21.60 0.10 12.10 2.56 15.30 0.35 18.50 0.15 21.70 0.10 12.20 3.15 15.40 0.34 18.60 0.15 21.80 0.10 12.30 3.30 << 15.50 0.33 18.70 0.14 21.90 0.10 12.40 3.29 15.60 0.32 18.80 0.14 22.00 0.10 12.50 3.10 15.70 0.31 18.90 0.14 22.10 . 0.10 12.60 2.78 15.80 0.30 19.00 0.14 22.20 0.11 Continues on next page... Hydrograph Report Page 1 English Hyd. No. 3 100yrPredev Hydrograph type = SCS Runoff Peak discharge = 5.71 cfs Storm frequency = 100 yrs Time interval = 6 min Drainage area = 1.56 ac Curve number = 70 Basin Slope = 0.3 % Hydraulic length = 400 ft Tc method = USER Time of cone. (Tc) = 15 min Total precip. = 10.00 in Distribution = Type III Storm duration = 24 hrs Shape factor = 242 Total Volume = 36,352 tuft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 8.50 0.06 11.70 1.06 14.90 0.61 18.10 0.25 8.60 0.07 11.80 1.45 15.00 0.59 18.20 0.24 8.70 0.08 11.90 2.00 15.10 0.57 18.30 0.24 8.80 0.08 12.00 3.06. 15.20 0.56 18.40 0.23 8.90 0.09 12.10 4.57 15.30 0.54 18.50 0.23 9.00 0.10 12.20 5.51 15.40 0.53 18.60 0.23 9.10 0.11 12.30 5.71 << 15.50 0.51 18.70 0.22 9.20 0.12 12.40 5.62 15.60 0.50 18.80 0.22 9.30 0.13 12.50 5.26 15.70 0.48 18.90 0.22 9.40 0.14 12.60 4.68 15.80 0.46 19.00 0.22 9.50 0.16 12.70 4.02 15.90 0.45 19.10 0.22 9.60 0.17 12.80 3.36 16.00 0.43 19.20 0.21 9.70 0.18 12.90 2.71 16.10 0.42 19.30 0.21 9.80 0.19 13.00 2.11 16.20 0.40 19.40 0.21 9.90 0.21 13.10 1.66 16.30 0.39 19.50 0.21 10.00 0.22 13.20 1.39 16.40 0.38 19.60 0.20 10.10 0.24 13.30 1.21 16.50 0.37 19.70 0.20 10.20 0.25 13.40 1.09 16.60 0.36 19.80 0.20 10.30 0.27 13.50 1.02 16.70 0.35 19.90 0.20 10.40 0.29 13.60 0.96 16.80 0.34 20.00 0.20 10.50 0.31 13.70 0.92 16.90 0.33 20.10 0.19 10.60 0.34 13.80 0.88 17.00 0.33 20.20 0.19 10.70 0.36 13.90 0.84 17.10 0.32 20.30 0.19 10.80 0.39 14.00 0.81 17.20 0.31 20.40 0.19 10.90 0.42 14.10 0.78 17.30 0.31 20.50 0.19 11.00 0.45 14.20 0.75 17.40 0.30 20.60 0.18 11.10 0.48 14.30 0.72 17.50 0.29 20.70 0.18 11.20 0.52 14.40 0.70 17.60 0.29 20.80 0.18 11.30 0.57 14.50 0.68 17.70 0.28 20.90 0.18 11.40 0.64 14.60 0.66 17.80 0.27 21.00 0.17 11.50 0.71 14.70 0.64 17.90 0.26 21.10 0.17 11.60 0.83 14.80 0.62 18.00 0.26 21.20 0.17 Continues on next page... Hydrograph Report Page 1 English Hyd. No. 4 1yr Postdev-24hr Hydrograph type = SCS Runoff Peak discharge = 1.71 cfs Storm frequency = 1 yrs Time interval = 6 min Drainage area = 1.56 ac Curve number = 80 Basin Slope = 0.3 % Hydraulic length = 400 ft Tc method = USER Time of conc. (Tc) = 10 min Total precip. = 3.80 in Distribution = Type III Storm duration = 24 hrs Shape factor = 242 Total Volume = 10,965 cuff Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs. cfs) 9.70 0.02 12.90 0.86 16.10 0.14 19.30 0.07 9.80 0.02 13.00 0.68 16.20 0.14 19.40 0.67 9.90 0.03 13.10 0.54 16.30 0.13 19.50 0.07 10.00 0.03 13.20 0.46 16.40 0.13 19.60 0.07 10.10 0.03 13.30 0.40 16.50 0.12 19.70 0.07 10.20 0.04 13.40 0.36 16.60 0.12 19.80 0.07 10.30 0.04 1150 0.34 16.70 0.12 19.90 0.07 10.40 0.05 13.60 0.32 16.80 0.12 20.00 0.07 10.50 0.06 13.70 0.30 16.90 0.11 20.10 0.07 10.60 0.06 13.80 0.29 17.00 0.11 20.20 0.07 10.70 0.07 13.90 0.28 17.10 0.11 20.30 0.06 10.80 0.08 14A 0.27 17.20 0.11 20.40 0.06 10.90 0.08 14.10 0.26 17.30 0.10 20.50 0.06 11.00 0.09 14.20 0.25 17.40 0.10 20.60 0.06 11.10 0.10 14.30 0.24 17.50 0.10 20.70 0.06 11.20 0.11 14.40 0.23 17.60 0.10 20.80 0.06 11.30 0.13 14.50 0.23 17.70 0.09 20.90 0.06 11.40 0.15 14.60 0.22 17.80 0.09 21.00 0.06 11.50 0.17 14.70 0.21 17.90 0.09 21.10 0.06 11.60 0.20 14.80 0.21 18.00 0.09 21.20 0.06 11.70 0.26 14.90 0.20 18.10 0.09 21.30 0.06 11.80 0.37 15.00 0.20 18.20 0.08 21.40 0.06 11.90 0.53 15.10 0.19 18.30 0.08 21.50 0.06 12.00 0.84 15.20 0.19 18.40 0.08 21.60 0.06 12.10 1.31 15.30 0.18 18.50 . 0.08 21.70 0.05 12.20 1.62 15.40 0.18 18.60 0.08 21.80 0.05 12.30 1.71 << 15.50 0.17 18.70 0.08 21.90 0.05 12.40 1.70 15.60 0.17 18.80 0.08 22.00 0.05 12.50 1.61 15.70 0.16 18.90 0.07 22.10 0.06 12.60 1.45 15.80 0.16 19.00 0.07 22.20 0.06 12.70 1.26 15.90 0.15 19.10 0.07 22.30 0.06 12.80 1.06 16.00 0.15 19.20 0.07 22.40 0.06 Continues on next page... Hydrograph Report Hyd. No. 5 10yr Postdev Hydrograph type Storm frequency Drainage area Basin Slope Tc method Total precip. Storm duration = SCS Runoff = 10 yrs = 1.56 ac = 0.3 % = USER = 7.00 in = 24 hrs Hydrograph Discharge Table Peak discharge = 4.29 cfs Time interval = 6 min Curve number = 80 Hydraulic length = 400 ft Time of conc. (Tc) = 10 min Distribution = Type III Shape factor = 242 Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) Page 1 English Total Volume = 27,414 cuft Time -- Outflow (hrs cfs) 8.00 0.04 11.20 0.43 14.40 0.51 17.60 0.21 8.10 0.05 11.30 0.47 14.50 0.49 17.70 0.20 8.20 0.05 11.40 0.52 14.60 0.48 17.80 0.20 8.30 0.06 11.50 0.57 14.70 0.46 17.90 0.19 8.40 0.06 11.60 0.66 14.80 0.45 18.00 0.19 8.50 0.07 11.70 0.84 14.90 0.44 18.10 0.18 8.60 0.07 11.80 1.14 15.00 0.43 18.20 0.18 8.70 0.08 11.90 1.56 15.10 0.42 18.30 0.17 8.80 0.09 12.00 2.35 15.20 0.40 18.40 0.17 8.90 0.09 12.10 3.47 15.30 0.39 18.50 0.17 9.00 0.10 12.20 4.16 15.40 0.38 18.60 0.16 9.10 0.11 12.30 4.29 << 15.50 0.37 18.70 0.16 9.20 0.12 12.40 4.21 15.60 0.36 18.80 0:16 9.30 0.13 12.50 3.92 15.70 0.35 18.90 0.16 9.40 0.14 12.60 3.48 15.80 0.34 19.00 0.16 9.50 0.15 12.70 2.98 15.90 0.32 19.10 0.16 9.60 0.16 12.80 2.48 16.00 0.31 19.20 0.15 9.70 0.17 12.90 2.00 16.10 0.30 19.30 0.15 9.80 0.18 13.00 1.55 16.20 0.29 19.40 0.15 9.90 0.19 13.10 1.22 16.30 0.28 19.50 0.15 10.00 0.20 13.20 1.02 16.40 0.27 19.60 0.15 10.10 0.21 13.30 0.88 16.50 0.27 19.70 0.15 10.20 0.22 13.40 0.80 16.60 0.26 19.80 0.14 10.30 0.24 13.50 0.74 16.70 0.25 19.90 0.14 10.40 0.25 13.60 0.70 16.80 0.25 20.00 0.14 10.50 0.27 13.70 0.67 16.90 0.24 20.10 0.14 10.60 0.29 13.80 0.64 17.00 0.24 20.20 0.14 10.70 0.31 13.90 0.61 17.10 0.23 20.30 0.14 10.80 0.33 14.00 0.59 17.20 0.23 20.40 0.14 10.90 0.35 14.10 0.56 17.30 0.22 20.50 0.13 11.00 0.37 14.20 0.54 17.40 0.22 20.60 0.13 11.10 0.40 14.30 0.52 17.50 0.21 20.70 0.13 Continues on next page... Hydrograph Report Hyd. No. 6 100yr Postdev Hydrograph type Storm frequency Drainage area Basin Slope Tc method Total precip. Storm duration = SCS Runoff = 100 yrs = 1.56 ac = 0.3 % = USER = 10.00 in = 24 hrs Hydrograph Discharge Table Page 1 English Peak discharge = 6.78 cfs Time interval = 6 min Curve number = 80 Hydraulic length = 400 ft Time of conc. (Tc) = 10 min Distribution = Type III Shape factor = 242 Total Volume = 43,920 cuff Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 7.00 0.07 10.20 0.44 13.40 1.20 16.60 0.39 7.10 0.07 10.30 0.46 13.50 1.12 16.70 0.38 7.20 0.08 10.40 0.48 13.60 1.06 16.80 0.37 7.30 0.08 10.50 0.51 13.70 1.00 16.90 0.36 7.40 0.09 10.60 0.54 13.80 0.96 17.00 0.35 7.50 0.10 10.70 0.57 13.90 0.92 17.10 0.34 7.60 0.10 10.80 0.61 14.00 0.88 17.20 0.34 7.70 0.11 10.90 0.64 14.10 0.85 17.30 0.33 7.80 0.11 11.00 0.68 14.20 0.82 17.40 0.32 7.90 0.12 11.10 0.72 14.30 0.79 17.50 0.31 8.00 0.13 11.20 0.77 14.40 0.76 17.60 0.31 8.10 0.13 11.30 0.83 14.50 0.74 17.70 0.30 8.20 0.14 11.40 0.91 14.60 0.71 17.80 0.29 8.30 0.15 11.50 1.01 14.70 0.69 17.90 0.28 8.40 0.16 11.60 1.15 14.80 0.68 18.00 0.28 8.50 0.17 11.70 1.45 14.90 0.66 18.10 0.27 8.60 0.18 11.80 1.94 15.00 0.64 18.20 0.26 8.70 0.19 11.90 2.60 15.10 0.62 18.30 0.26 8.80 0.21 12.00 3.86 15.20 0.61 18.40 0.25 8.90 0.22 12.10 5.59 15.30 0.59 18.50 0.25 9.00 0.23 12.20 6.62 15.40 0.57 18.60 0.24 9.10 0.25 12.30 6.78 << 15.50 0.55 18.70 0.24 9.20 0.26 12.40 6.61 15.60 0.54 18.80 0.24 9.30 0.28 12.50 6.13 15.70 0.52 18.90 0.24 9.40 0.29 12.60 5.42 15.80 0.50 19.00 0.23 9.50 0.31 12.70 4.62 15.90 0.48 19.10 0.23 9.60 0.33 12.80 3.82 16.00 0.47 19.20 0.23 9.70 0.34 12.90 3.06 16.10 0.45 19.30 0.23 9.80 0.36 13.00 2.36 16.20 0.43 19.40 0.22 9.90 0.38 13.10 1.84 16.30 0.42 19.50 0.22 10.00 0.40 13.20 1.54 16.40 0.41 19.60 0.22 10.10 0.41 13.30 1.33 16.50 0.40 19.70 0.22 Continues on next page... Hydrograph Report Hyd. No. 7 1yr Post-Route-24hr Hydrograph type = Reservoir Storm frequency = 1 yrs Inflow hyd. No. = 4 Max. Elevation = 12.14 ft Storage Indication method used. Hydrograph Discharge Table Peak discharge Time interval Reservoir name Max. Storage Page 1 English = 0.42 cfs = 6 min = Best Western at = 6,038 cuft Total Volume = 9,599 cuft Time Inflow Elevation Clv A Clv B Clv C Clv D Wr A Wr B Wr C Wr D Outflow (hrs) cfs ft cfs cfs cfs cfs cfs cfs cfs cfs cfs 12.00 0.84 11.22 3.08 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.10 1.31 11.30 3.22 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.20 1.62 11.40 3.39 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.30 1.71 << 11.52 3.62 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.40 1.70 11.63 5.07 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.50 1.61 11.75 6.16 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.60 1.45 11.86 7.02 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.70 1.26 11.95 7.70 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.80 1.06 12.02 8.43 0.01 ----- ----- ----- ----- ----- ----- 0.01 12.90 0.86 12.08 9.24 0.01 ----- ----- 0.00 ----- ----- ----- 0.01 13.00 0.68 12.12 9.66 0.02 ----- ----- 0.18 ----- ----- ----- 0.20 13.10 0.54 12.13 9.84 0.02 ----- ----- 0.34 ----- ----- ----- 0.35 13.20 0.46 12.14 9.90 0.02 ----- ----- 0.40 ----- ----- ----- 0.41 13.30 0.40 12.14 << 9.90 0.02 ----- ----- 0.40 ----- ----- ----- 0.42 << 13.40 0.36 12.14 9.89 0.02 ----- ----- 0.38 ----- ----- ----- 0.40 13.50 0.34 12.14 9.86 0.02 ----- ----- 0.36 ----- ----- ----- 0.38 13.60 0.32 12.14 9.84 0.02 ----- ----- 0.34 ----- ----- ----- 0.36 13.70 0.30 12.13 9.82 0.02 ----- ----- 0.32 ----- ----- ----- 0.34 13.80 0.29 12.13 9.80 0.02 ----- ----- 0.31 ----- ----- ----- 0.32 13.90 0.28 12.13 9.79 0.02 ----- ----- 0.29 ----- ----- ----- 0.31 14.00 0.27 12.13 9.77 0.02 ----- ----- 0.28 ----- ----- ----- 0.29 14.10 0.26 12.13 9.76 0.02 ----- ----- 0.27 ----- ----- ----- 0.28 14.20 0.25 12.13 9.75 0.02 ----- ----- 0.26 ----- ----- ----- 0.27 14.30 0.24 12.12 9.74 0.02 ----- ----- 0.25 ----- ----- ----- 0.26 14.40 0.23 12.12 9.73 0.02 ----- ----- 0.24 ----- ----- ----- 0.25 14.50 0.23 12.12 9.72 0.02 ----- ----- 0.23 ----- ----- ----- 0.24 14.60 0.22 12.12 9.71 0.02 ----- ----- 0.22 ----- ----- ----- 0.24 14.70 0.21 12.12 9.70 0.02 ----- ----- 0.21 ----- ----- ----- 0.23 14.80 0.21 12.12 9.70 0.02 ----- ----- 0.21 ----- ----- ----- 0.22 14.90 0.20 12.12 9.69 0.02 ----- ----- 0.20 ----- ----- ----- 0.22 15.00 0.20 12.12 9.68 0.02 ----- ----- 0.20 ----- ----- ----- 0.21 15.10 0.19 12.12 9.68 0.02 ----- ----- 0.19 ----- ----- ----- 0.21 15.20 0.19 12.12 9.67 0.02 ----- ----- 0.19 ----- ----- ----- 0.20 15.30 0.18 12.12 9.66 0.02 ----- ----- 0.18 ----- ----- ----- 0.20 15.40 0.18 12.12 9.65 0.02 ----- ----- 0.18 ----- ----- ----- 0.19 15.50 0.17 12.11 9.65 0.02 ----- ----- 0.17 ----- ----- ----- 0.19 Continues on next page... Reservoir Report Page 1 English Reservoir No. 1 - Best Western at Westgate Pond Data Pond storage is based on known contour areas Stage / Storage Table Stage Elevation Contour area Incr. Storage Total storage ft ft sgft cuft cuft 0.00 11.00 4,130 0 0 1.00 12.00 6,140 5,135 5,135 1.20 12.20 6,585 1,273 6,408 2.00 13.00 7,030 5,446 11,854 3.00 14.00 7,300 7,165 19,019 4.00 15.00 7,585 7,443 26,461 5.00 16.00 8,500 8,043 34,504 Culvert / Orifice Structures [A] [B] [C] [D] Rise in = 18.0 1.0 0.0 0.0 Span in = 18.0 1.0 0.0 0.0 No. Barrels = 1 1 0 0 Invert El. ft = 10.00 11.00 0.00 0.00 Length ft = 22.0 10.0 0.0 0.0 Slope % = 0.50 0.01 0.00 0.00 N-Value = .013 .013 .000 .000 Orif. Coeff. = 0.60 0.60 0.00 0.00 Multi -Stage = ----- Yes No No Stage / Storage / Discharge Table Weir Structures [A] Crest Len ft = 2.0 Crest El. ft = 12.20 Weir Coeff. = 3.30 Eqn. Exp. = 1.50 Multi -Stage = Yes [B] [C] [D] 16.0 20.0 0.0 13.00 14.00 0.00 3.30 3.00 0.00 1.50 1.50 0.00 Yes No No Tailwater Elevation = 11.00 ft Note'. A l outflows have been analyzed under inlet and outlet control. Stage Storage Elevation Clv A Clv B Clv C Clv D Wr A Wr B Wr C Wr D Discharge ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 11.00 0.00 0.00 --- --- 0.00 0.00 0.00 --- 0.00 1.00 5,135 12.00 8.04 0.01 --- --- 0.00 0.00 0.00 --- 0.01 1.20 6,408 12.20 10.42 0.02 --- --- 1.08 0.00 0.00 --- 1.10 2.00 11,854 13.00 12.03 0.02 . --- --- 4.72 0.00 0.00 --- 4.74 3.00 19,019 14.00 14.74 0.00 --- --- 16.94 52.80 0.00 --- 14.74 4.00 26,461 15.00 17.02 0.00 --- --- 30.92 149.34 60.00 --- 77.02 5.00 34,504 16.00 19.02 0.00 --- --- 48.89 274.36 169.71 --- 188.73 a Hydrograph Report Page 1 Hyd. No. 8 10yr Post -Route Hydrograph type = Reservoir Peak discharge Storm frequency = 10 yrs Time interval Inflow hyd. No. = 5 Reservoir name Max. Elevation = 12.66 ft Max. Storage Storage Indication method used. Hydrograph Discharge Table English = 2.99 cfs = 6 min = Best Western at = 9,541 cuft Total Volume = 26,042 cuff Time Inflow Elevation Clv A Clv B Clv C Clv D Wr A Wr B Wr C MID Outflow (hrs) cfs ft cfs cfs cfs cfs cfs cfs cfs cfs cfs 12.10 3.47 12.09 9.41 0.01 ----- ----- 0.04 ----- ----- ----- 0.06 12.20 4.16 12.26 10.56 0.02 ----- ----- 1.31 ----- ----- ----- 1.33 12.30 4.29 << 12.40 10.85 0.02 ----- ----- 1.84 ----- ----- ----- 1.86 12.40 4.21 12.52 11.09 0.02 ----- ----- 2.32 ----- ----- ----- 2.34 12.50 3.92 12.60 11.25 0.02 ----- ----- 2.69 ----- ----- ----- 2.70 12.60 3.48 12.65 11.35 0.02 ----- ----- 2.91 ----- ----- ----- 2.92 12.70 2.98 12.66 << 11.37 0.02 ----- ----- 2.97 ----- ----- ----- 2.99 << 12.80 2.48 12.65 11.35 0.02 ----- ----- 2.92 ----- ----- ----- 2.93 12.90 2.00 12.62 11.29 0.02 ----- ----- 2.76 ----- ----- ----- 2.78 13.00 1.55 12.57 11.19 0.02 ----- ----- 2.55 ----- ----- ----- 2.56 13.10 1.22 12.51 11.08 0.02 ----- ----- 2.30 ----- ----- ----- 2.32 13.20 1.02 12.45 10.96 0.02 ----- ----- 2.05 ----- ----- ----- 2.07 13.30 0.88 12.40 10.85 0.02 ----- ----- 1.84 ----- ----- ----- 1.85 13.40 0.80 12.35 10.75 0.02 ----- ----- 1.64 ----- ----- ----- 1.66 13.50 0.74 12.31 10.66 0.02 ----- ----- 1.48 ----- ----- ----- 1.50 13.60 0.70 12.27 10.58 0.02 ----- ----- 1.34 ----- ----- ----- 1.36 13.70 0.67 12.24 10.51 0.02 ----- ----- 1.23 ----- ----- ----- 1.24 13.80 0.64 12.21 10.44 0.02 ----- ----- 1.12 ----- ----- ----- 1.14 13.90 0.61 12.19 10.32 0.02 ----- ----- 0.93 ----- ----- ----- 0.95 14.00 0.59 12.17 10.19 0.02 ----- ----- 0.75 ----- ----- ----- 0.77 14.10 0.56 12.17 10.12 0.02 ----- ----- 0.66 ----- ----- ----- 0.67 14.20 0.54 12.16 10.07 0.02 ----- ----- 0.60 ----- ----- ----- 0.61 14.30 0.52 12.16 10.04 0.02 ----- ----- 0.56 ----- ----- ----- 0.58 14.40 0.51 12.15 10.02 0.02 ----- ----- 0.53 ----- ----- ----- 0.55 14.50 0.49 12.15 10.00 0.02 ----- ----- 0.51 ----- ----- ----- 0.53 14.60 0.48 12.15 9.98 0.02 ----- ----- 0.49 ----- ----- ----- 0.51 14.70 0.46 12.15 9.97 0.02 ----- ----- 0.47 ----- ----- ----- 0.49 14.80 0.45 12.15 9.95 0.02 ----- ----- 0.46 ----- ----- ----- 0.48 14.90 0.44 12.15 9.94 0.02 ----- ----- 0.45 ----- ----- ----- 0.46 15.00 0.43 12.14 9.93 0.02 ----- ----- 0.43 ----- ----- ----- 0.45 15.10 0.42 12.14 9.92 0.02 ----- ----- 0.42 ----- ----- ----- 0.44 15.20 0.40 12.14 9.91 0.02 ----- ----- 0.41 ----- ----- ----- 0.42 15.30 0.39 12.14 9.90 0.02 ----- ----- 0.40 ----- ----- ----- 0.41 15.40 0.38 12.14 9.89 0.02 ----- ----- 0.39 ----- ----- ----- 0.40 15.50 0.37 12.14 9.88 0.02 ----- ----- 0.38 ----- ----- 0.39 15.60 0.36 12.14 9.87 0.02 ----- ----- 0.37 ----- ----- ----- 0.38 Continues on next page... S Reservoir Report Page 1 English Reservoir No. 1 - Best Western at Westgate Pond Data Pond storage is based on known contour areas Stage / Storage Table Stage Elevation Contour area Incr. Storage Total storage ft ft sqft cuft cuft 0.00 11.00 4.130 0 0 1.00 12.00 6,140 5,135 5,135 1.20 12.20 6,585 1,273 6,408 2.00 13.00 7,030 5,446 11,854 3.00 14.00 7,300 7,165 19,019 4.00 15.00 7,585 7,443 26,461 5.00 16.00 8.500 8,043 34,504 Culvert / Orifice Structures Weir Structures [A] [B] [C] [D] [A] [B] [C] [D] Rise in = 18.0 1.0 0.0 0.0 Crest Len ft = 2.0 16.0 20.0 0.0 Span in = 18.0 1.0 0.0 0.0 Crest El. ft = 12.20 13.00 14.00 0.00 No. Barrels = 1 1 0 0 Weir Coeff. = 3.30 3.30 3.00 0.00 Invert El. ft = 10.00 11.00 0.00 0.00 Eqn. Exp. = 1.50 1.50 1.50 0.00 Length ft = 22.0 10.0 0.0 0.0 Multi -Stage = Yes Yes No No Slope % = 0.50 0.01 0.00 . 0.00 N-Value = .013 .013 .000 .000 Orif. Coeff. = 0.60 0.60 0.00 0.00 Multi -Stage = ----- Yes No No Tailwater Elevation = 11.00 ft Note: All outflows have been analyzed under inlet and outlet contra]. Stage / Storage / Discharge Table Stage Storage Elevation Clv A Clv B Clv C Clv D Wr A Wr B Wr C Wr D Discharge ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 11.00 0.00 0.00 --- --- 0.00 0.00 0.00 --- 0.00 1.00 5,135 12.00 8.04 0.01 --- --- 0.00 0.00 0.00 --- 0.01 1.20 6,408 12.20 10.42 0.02 --- --- 1.08 0.00 0.00 --- 1.10 2.60 11,854 13.00 12.03 0.02 --- --- 4.72 0.00 0.00 --- 4.74 3.00 19,019 14.00 14.74 0.00 --- --- 15.94 52.80 0.00 --- 14.74 4.00 26,461 15.00 17.02 0.00 --- --- 30.92 149.34 60.00 --- 77.02 5.00 34,504 16.00 19.02 0.00 --- --- 48.89 274.36 169.71 --- 188.73 Hydrograph Report Page 1 English Hyd. No. 9 100yr Post -Route Hydrograph type = Reservoir Peak discharge = 5.77 cfs Storm frequency = 100 yrs Time interval = 6 min Inflow hyd. No. = 6 Reservoir name = Best Western at Max. Elevation = 13.04 ft Max. Storage = 12,140 cuft Storage indloanoo method used. Total Volume = 42,545 cuff Hydrograph Discharge Table Time Inflow Elevation Clv A Clv B Clv C Clv D Wr A Wr B Wr C Wr D Outflow (hrs) cfs ft cfs cfs cfs cfs cfs cfs cfs cfs cfs 11.60 1.15 12.12 9.71 0.02 ----- ----- 0.22 ----- ----- ----- 0.24 11.70 1.45 12.17 10.14 0.02 ----- ----- 0.69 ----- ----- ----- 0.70 11.80 1.94 12.21 10.44 0.02 ----- ----- 1.12 ----- ----- ----- 1.14 11.90 2.60 12.27 10.56 0.02 ----- ----- 1.32 ----- ----- . ----- 1.33 12.00 3.86 12.36 10.76 0.02 ----- ----- 1.66 ----- ----- ----- 1.68 12.10 5.59 12.50 11.06 0.02 ----- ----- 2.26 ----- ----- ----- 2.28 12.20 6.62 12.68 11.42 0.02 ----- ----- 3.08 ----- ----- ----- 3.10 12.30 6.78 << 12.85 11.75 0.02 ----- ----- 3.93 ----- ----- ----- 3.94 12.40 6.61 12.98 11.99 0.02 ----- ----- 4.61 ----- ----- -- 4.63 12.50 6.13 13.04 12.15 0.02. ----- ----- 5.08 0.66 ----- ----- 5.76 12.60 5.42 13.04 << 12.15 0.02 ----- ----- 5.09 0.67 ----- ----- 5.77 12.70 4.62 13.02 12.08 0.02 ----- 4.88 0.28 ----- ----- 5.18 12.80 3.82 12.98 12.00 0.02 ----- 4.62 ----- ----- ----- 4.64 12.90 3.06 12.93 11.89 0.02 ----- 4.32 ----- ----- ----- 4.34 13.00 2.36 12.85 11.75 0.02 ----- ----- 3.92 ----- ----- ----- 3.94 13.10 1.84 12.77 11.58 0.02 ----- ----- 3.48 ----- ----- ----- 3.50 13.20 1.54 12.68 11.41 0.02 ----- ----- 3.07 ----- ----- ----- 3.09 13.30 1.33 12.60 11.26 0.02 ----- ----- 2.70 ----- ----- ----- 2.72 13.40 1.20 12.53 11.12 0.02 ----- ----- 2.40 ----- ----- 2.41 13.50 1.12 12.47 11.00 0.02 ----- ----- 2.14 ----- ----- ----- 2.16 13.60 1.06 12.42 10.89 0.02 ----- ----- 1.93 ----- ----- ----- 1.94 13.70 1.00 12.38 10.80 0.02 ----- ----- 1.75 ----- ----- ----- 1.77 13.80 0.96 12.34 10.72 0.02 ----- ----- 1.60 ----- ----- ----- 1.62 13.90 0.92 12.31 10.65 0.02 ----- ----- 1.48 ----- ----- ----- 1.50 14.00 0.88 12.28 10.59 0.02 ----- ----- 1.37 ----- ----- 1.39 14.10 0.85 12.26 10.54 0.02 ----- ----- 1.28 ----- ----- ----- 1.30 14.20 0.82 12.23 10.49 0.02 ----- ----- 1.20 ----- ----- ----- 1.22 14.30 0.79 12.21 10.45 0.02 ----- ----- 1.13 ----- ----- ----- 1.15 14.40 0.76 12.20 10.38 0.02 ----- ----- 1.03 ----- ----- ----- 1.05 14.50 0.74 12.18 10.28 0.02 =---- ----- 0.87 ----- ----- ----- 0.89 14.60 0.71 12.18 10.22 0.02 ----- ----- 0.79 ----- ----- ----- 0.80 14.70 0.69 12.17 10.18 0.02 ----- ----- 0.74 ----- ----- ----- 0.75 14.80 0.68 12.17 10.15 0.02 ----- ----- 0.70 ----- ----- ----- 0.72 14.90 0.66 12.17 10.13 0.02 ----- ----- 0.68 ----- ----- ----- 0.69 15.00 0.64 12.17 10.12 0.02 ----- ----- 0.66 ----- ----- ----- 0.67 15.10 0.62 12.16 10.10 0.02 ----- ----- 0.64 ----- ----- ----- 0.65 Continues on next page... 0 Reservoir Report Reservoir No. 1 - Best Western at Westgate Pond Data Pond storage is based on known contour areas Stage / Storage Table Stage Elevation Contour area Incr. Storage Total storage ft ft sgft cult cult 0.00 11.00 4,130 0 0 1.00 12.00 6,140 5,135 5,135 1.20 12.20 6,585 1,273 6,408 2.00 13.00 ,7,030 5,446 11,854 3.00 14.00 7,300 7,165 19,019 4.00 15.00 7,585 7,443 26,461 5.00 16.00 8,500 8,043 34,504 Culvert / Orifice Structures [A] Rise in = 18.0 Span In = 18.0 No. Barrels = 1 Invert El. ft = 10.00 Length ft = 22.0 Slope % = 0.50 N-Value = .013 Crif. Coeff. = 0.60 Multi -Stage = ----- [B] [C] 1.0 0.0 1.0 0.0 1 0 11.00 0.00 10.0 0.0 0.01 0.00 .013 .000 0.60 0.00 Yes No Stage / Storage / Discharge Table [D] 0.0 0.0 0 0.00 0.0 0.00 .000 0.00 No Weir Structures [A] Crest Len ft = 2.0 Crest El. ft = 12.20 Weir Coeff. = 3.30 Eqn. Exp. = 1.50 Multi -Stage = Yes Page 1 English [B] [C] [D] 16.0 20.0 0.0 13.00 14.00 0.00 3.30 3.00 0.00 1.50 1.50 0.00 Yes No No Tailwater Elevation = 11.00 ft Note: All outilms have been analyzed under inlet and outlet control. Stage Storage Elevation Clv A Clv B Clv C Clv D Wr A Wr B Wr C Wr D Discharge ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 11.00 0.00 0.00 --- --- 0.00 0.00 0.00 --- 0.00 1.00 5,135 12.00 8.04 0.01 --- --- 0.00 0.00 0.00 --- 0.01 1.20 6,408 12.20 10.42 0.02 --- --- 1.08 0.00 0.00 --- 1.10 2.00 11,854 13.00 12.03 0.02 --- --- 4.72 0.00 0.00 --- 4.74 3.00 19,019 14.00 14.74 0.00 --- --- 15.94 52.80 0.00 --- 14.74 4.00 26,461 15.00 17.02 0.00 --- --- 30.92 149.34 60.00 --- 77.02 5.00 34,504 16.00 19.02 0.00 --- --- 48.89 274.36 169.71 --- 188.73 Precipitation Frequency Data Server Page 1 of 4 POINT PRECIPITATION ,f FREQUENCY ESTIMATES FROM NOAA ATLAS 14 t.,,IRP North Carolina 34.208888 N 78.02888 W 26 feet from •Precipitation -Frequency Atlas of the United States- NOAA Atlas 14, Volume 2, Version 3 C.M. Bonnie, D. Martin, B. Lin, T. 1'mzybok, M.Yekta, and D. Riley NOAA, Nation] Wemher Service, Silver Spring, Maryland, 200e Extracted. Mon Jun 2 2008 Confidence Limits _JSeasonalityL Location Maps Other Info. GIS data Maps Help Docs U.S. Map Precipitation Frequency Estimates (inches) FIRI* cacs IY ") min 1n m n 1._ 1 min n n n 6o min 11 min �-hr 6 hr 12 hr 24 hr 4A hr 4 AR X 7 Jn X Io da Y 2n Aa X o J Y 45 Ja X 60 Ja X 0.52 U.R3 L114 L43 1.7R 2.11 2.26 2.R0 3.27 3.83 448 5.02 5.76 6.50 8.72 10.75 13.39 16.07 00.62 U.99 1.25 1.72 2.16 2.58 2.75 3A1 4.00 4.64 5.42 6.05 C.95 7.78 10.38 12.78 15.84 18.93 00.72 1.16 L47 2.08 731E4]E2E 15.35 18.78 22.15 III 0.81 L29 L63 2.36 3.08 3.86 4.IR 5.19 6.1E Z21 8.29 9.05 10.23 11.20 14.53 1743 21.16 24.70 25 0.9I L45 1.84 2.72 3.(>2 4.70 5.15 6.42 7.67 9.06 10.32 11.12 12.42 13.46 17.20 20.31 24.44 28.14 511 0.99 1.57 1.99 3.00 4.07 5.41 6.00 7.50 9.01 10.71 12.I I 12.89 14.26 1 i 19.41 22.62 27.06 30.80 1011 IA7 L70 2.15 3.29 4.53 6.18 G.94 8.70 1Q52 12.59 14.14 14.R7 16.27 IZ40 21.75 25.00 29.73 33.47 2011 LIS LR2 2.30 3.57 5.01 7.03 7.98 10.05 12.23 14.73 16.43 17.05 18.47 19.62 24.23 27.48 32.48 36.14 5011 1.25 IJS 2.49 397 5.69 8.2R 256 12.11 14.87 IR.05 19.94 20.42 21.68 22.84 27.76 30.89 36.24 39.69 101111 1.34 2.11 2.65 4.29 6.26 9.36 10.95 13.92 17.22 20.99 23.02 23.33 24.39 25.53 30.65 33.59 39.19 42.40 These precipitation frewency estimates are bated on a pP3ryg_@ginfif 5 ri . ARI is the Average Recurrence Interval. Pleats rater to Ne dxumenleGpn for more information. NOTE: Formattlrg forces estimates near zero to appear as zero, * Upper bound of the 90% confidence interval Precipitation Frequency Estimates (inches) %It rInhayr(y�rs) nin mn mn mn ihhrhJay 11 Jay Jay 11 Jay Jay FI 0.56 0.9U 1.12 1.54 IA2 2.31 2AR 3.08 3.63 4.26 4.96 5.54 619 7.0E 9.3R 11.50 14.26 17.0E 00.67 1.07 1.34 1.86 2.33 2.R1 3.02 3.7E 4.42 5.17 6.00 6.68 Z58 8.4E I1.19 13.66 16.86 20.09 0 0.7R 1.2E LSR 2.2E 2.8R 3.58 3.8E 4.79 5.70 6.69 7.70 8 46 9.53 10-47 13.63 16.40 19.98 23.50 III 0.87 1.39 1.76 2.54 3.31 4.21 4.57 5.69 6. 00 R.01 9.17 9.98 I L I5 12.16 15.63 18.61 22.52 26.19 25 11.9R L56 1.97 2.92 3.89 5.11 5.62 7.02 8.4E 10.0E 11.43 12.26 13.54 14.61 18.52 21.71 26.03 29.86 SU 1.06 1.69 2.14 3.23 4.37 5.89 6.5E 8.19 9.91 11.88 13 475 14.24 15.57 16.70 20.93 24.22 28.85 32.76 IIIO 1.1E 1.83 2.31 3.54 4.87 6.73 7.56 9.49 IL56 13.97 15.73 16A7 IZ81 18.96 23.52 26.84 31.77 35. 77 2110 1.24 1.96 2.47 3.8E 5.40 7.64 8.69 10.96 13.43 16.38 1R.36 18.98 20.27 21.46 26.33 29.59 34.85 38.63 5110 1.3E 2.14 2.69 4.28 6.1E 9.02 10.42 13.22 16.34 20.19 22.42 22.87 24.00 25.19 -- 33.51 39.10 42.67 IIIUII IAS 2.2R 2.86 4.63 6.77 10.22 11.9E 15.23 18.90 23.62 26.0E 26.34 27.19 28.37 33.79 36.6E 42.56 45.8E The upper bound of the confidence interval at 90%confidence level is the value which 5%of the simulated weather values for a given frequency are greater than. These precipitation frequency estimates are based on a pa�jal duratlon sages, AM is the Average Recurrence Interval. Please relm to the documentation for more information. NOTE: Formattrg prevents estimates near zero to appear as zero. * Lower bound of the 90% confidence interval Precipitation Frequency Estimates (inches) %Rl.. o lU 15 30 6U 12U 0012 24 4R o0 10 20 30 45 60 (years) mm nun min mm min min hr hr hr hr hr Jay day do Jay day day ILLay �1 0.49 0.7R 0.97 1.33 1.66 1.9E 2.0R 2.5 22.98 3A9 4.10 ET]5.33 6.03 8.13 10.1I 12.63 15.20 F2 0.58 0.92 1.16 1.60 2.01 2.3R 2.54 3.14 3.64 4.23 4.96 5.56 6A3 7.21 9.70 12.01 1192 17.91 F 0.(i7 L118 1.36 1.94 2.48 3.02 3.23 4.01 4.68 5.47 6.3E 7.02 R.06 R.91 11.80 14 11 17.68 20.94 I0 0.7E 1.19 L51 2.19 2.8E 3.5E 3.R2 4.74 5.57 6.54 7.53 8.2E 9.41 10.33 13.51 16.32 19.87 23.31 2,5 O.R4 1.34 L69 2.51 3.34 4.29 4.68 5.83 6.88 R.13 9.29 10.05 11.34 12.3E 15.91 18.94 22.88 26.47 So 0.91 L44 I.R3 2.7E 3.73 4.92 5.42 6.7(> R.04 9.52 10.80 1 L56 E93 14. 00 77. 44 11.00 25.20 28. 88 I1111 297 L55 1.96 3A0 4.13 5.59 6.22 7.79 9.31 11.06 12.45 13.19 14.62 15.73 19.8--IF-0- 3.7 27.94 31.23 rnnnnnnnnn�n�nin�nininrnrnn�n http://h(isc.nws.iioa,t.gov/cgi-binlhdsc/bLli ldoLit.perl?type=pf&units=us&series=pd&statena... 6/2/2008 Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen 11. Sullins Director Division of Water Quality June 30, 2008 Riley S. Evans, Manager Sankey Properties, LLC PO Box 847 Clarkton. NC 28433 Subject: Request for Additional Information Stormwater Project No. SW8 080514 West Gate - Best Western Hotel & Restaurant Brunswick County Dear Mr. Evans: The Wilmington Regional Office received a State Stormwater Management Permit Application for West Gate - Best Western Hotel & Restaurant on May 19, 2008. A preliminary review of that information has determined that the following is needed to continue the stormwater review: 1. Please verify the Stage -Storage Table for the permanent pool provided in the calculations. It appears that the incremental volumes calculated from the surface areas associated with various elevations of the pond are incorrect or slightly off. 2. Please verify the embankment section detail and forebay section details presented on plan sheet 8. It appears that the bottom elevations and sediment removal elevations are switched between the two details. 3. Please submit a $500 fee for the additional review required for this application. Please keep in mind that changing one number may change other numbers and require the calculations, supplements, and other supporting documentation to be updated. Verify all numbers are correct to ensure consistency In the application documents. Please note that this request for additional information is in response to a preliminary review. The requested information should be received in this Office prior to July 8, 2008, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. If you have any questions concerning this matter please feel free to call me at (910) 796-7323 or email me at christine.nelson@ncmaii.net. Sincerely, CpI Christine Nelson Environmental Engineer ENB/can: S:\WQS\STORMWATER\ADDINFO\2008\080514.jun08 cc: David S. Hollis, Hanover Design Services One Christine Nelson North Carolina Wilmington Regional Office Naturally North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796-7215 Customer Service Wilmington Regional Office Internet: www.ncwmeruualitv.ore Fax (910)350-2004 1-877-623-6748 An Equal OpportunitylAffirmative Action Employer — 50% Recycled110% Post Consumer Paper 2nd request for additional info: SW Project No. 080514 Best Weste... Subject: 2nd request for additional info: SW Project No. 080514 Best Western & Restaurant From: Christine Nelson <Christine.Nelson@ncmail.net> Date: Mon, 30 Jun 2008 17:39:03 -0400 To: David Hollis <dhollis@hdsilm.com>, David Brown <dbrown@hdsilm.com>, rsejncsu82@aol.com CC: Janet Russell <Janet.Russel l@ncmai1.net> Gentlemen, I have attached a pdf version of my request for additional information for Stormwater Project SW8 080514 - West Gate - Best Western Hotel & Restaurant. I will also send copies via mail. Thank you, Christine Express Stormwater Permitting NC-DENR 080514 - Best Western 06302008.pdf Content -Type: application/pdf Content -Encoding: base64 I of 1 6/30/2008 5:39 PM INSTALLATION GUIDELINES FOR LANDLOKO TRMs AND PYRAMATO HPTRMs BEFORE YOU BEGIN Thank you for purchasing high quality Landlok® Turf Reinforcement Mats (TRMs) and Pyram t° High Performance Turf Reinforcement Mats (HPTRMs) from Propex. We're committed to offering th Y erosion control products in the industry. It is important to follow these installation guidelines for a successful project. (Note: Construction shall be performed in accordance with the specific project bid documents, construction drawings, and specifications.) In addition, we suggest that a pre -installation meeting be held with the construction team and a representative from Propex. This meeting shall be scheduled by the contractor with at least two weeks notice. Also, Propex suggests that installation monitoring of our TRMs and HPTRMs be performed by a qualified independent third party. SITE PREPARATION ► Grade and compact area of TRM/HPTRM installation as directed and approved by Engineer. Subgrade shall be uniform and smooth. Remove all rocks, clods, vegetation or other objects so the installed mat will have direct contact with soil surface. / Prepare seedbed by loosening the top 2-3 in (50-75 mm) minimum of soil. ► Incorporate amendments such as lime and fertilizer and/or wet the soil, if needed. 1 Do not mulch areas where mat is to be placed. SEEDING / Apply seed to soil surface before installing mat. Disturbed areas shall be reseeded. ► When soil filling, first install the mat, apply seed and then soil -fill per guidelines (see page 8). ► Consult project plans and/or specifications for seed types and application rates. THE ADVANTAGE CREATORS." PR=�PEX I GEOSYMHETICS INSTALLATION GUIDELINES FOR LANDLOV TRMs AND PYRAMATO HPTRMs INSTALLATION ON STABLE SOIL SLOPES ► Excavate a 12 x 6 in (300 x 15 mm) minimum longitudinal anchor trench 2-3 ft (600.900 mm) over crest of slope (see Figure 2). ► Install top end of mat into trench and secure to bottom using suggested ground anchoring devices (see Tables 1 and 2 on page 7) spaced every 12 in (300 mm) minimum. Backfill and compact soil into trench (see Figure 2). 0 Unroll mat down slope. Landlok® 1051 shall have the geotextile on bottom. ► Overlaps shall be 6 in (150 mm) minimum and anchored every 18 in (450 mm) minimum along the overlap. Secure using suggested ground anchoring devices shown in Table 1 for appropriate frequency and pattern. Overlaps are shingled away from prevailing winds (see Figure 1). / Unroll mat in a manner to maintain direct contact with soil. Secure mat to ground surface using ground anchoring devices (see Table 1). Anchors shall be placed in accordance with the Anchor Pattern Guide on page 7. ► Excavate a 12 x 6 in (300 x 150 mm) key anchor trench at toe of slope (see Figure 3). / Place bottom end of mat into key anchor trench at toe of slope and secure to bottom of trench using suggested ground anchoring devices (see Tables 1 and 2) spaced every 12 in (300 mm) minimum. Backfill and compact soil into trench (see Figure 3). / If the potential for standing and/or flowing water exists at the toe of slope, the key anchor trench at the toe detail (see Figure 3) is not sufficient. Consult the project engineer for the appropriate detail. 0 Irrigate as necessary to establish/maintain vegetation. Do not over -irrigate. Longitudinal _ anchor trench G G� 00 O p G�%' p0 O o0 p O O O goop �0 p ° p 0 O Qe00 p p O ° O p p p ° p O 0 O O ° Q QO 0 p ° O O 9�001 . p U'006 a p jp P p ° °p O O p p ° —U�CO0 ° p ° 0 o o o0 O p 0� ° 0 0 00Q0 Key anchor °nRo�° trench at - you toe of slope n Off. �p.p�Q0001� FIGURE Installation of permanent turf reinforcement mat on slope Overlaps 6 in (150 mm) minimum Space anchors 18 in along overlaps down the slope Anchor pattern shall be in accordance with the "Anchor Pattern Guide" found on page 7 OJ o. ° °DC�p• o(° Qo �Ga o 0 0 .— 6" _ 12" _ a e �Q.�p�G°doPo 0 oQapoop oc o0 000- dQc Doi o dD S Q Q�(�aQg OOO�pdO � . . ' p 12•�°00�0��� o� 't?•d o'D.oa - pi Pp D.Qa04 o.pO 4p oO�oO.o.aaQoOa OG0 opoti0QpC7[3r�0 QQoO�gp�D,popo�4000000(0nc pggQop?'. tiio ooPo0p4.49o�00°"��0: INSTALLATION IN STORM WATER CHANNELS FIGURE Q Longitudinal anchor trench at top of slope Space anchors 12 in (300 mm) along bottom of trench FIGURE Key anchor trench at toe of slope ► Figure 4 shows general installation layout and details for TRMs and HPTRMs in storm water channels. ► Excavate an initial anchor trench 12 in (300 mm) minimum deep and 12 in (300 mm) minimum wide across the channel at downstream end of project (see Figure 5). Deeper initial anchor trench is needed in channels that have the potential for scour. 0 Excavate longitudinal anchor trenches 12 in (300 mm) minimum deep and 6 in (150 mm) minimum wide along both sides of the installation to bury edges of mat (see Figure 6). The trench shall be located 2-3 ft (600.900 mm) over crest of slope. ► Place roll end into the initial anchor trench and secure with anchoring devices at 12 in (300 mm) minimum intervals (see Figure 5). Position adjacent rolls and secure in anchor trench in same manner. Backfill and compact soil into trench. / Unroll mat in the upstream direction over the compacted trench. / Continue installation as described above, overlapping adjacent rolls as follows: Roll edge: 6 in (150 mm) minimum with upslope mat on top. Secure with one row of ground anchoring devices on 12 in (300 mm) minimum intervals (see Figure 7). Roll end: 12 in (300 mm) minimum with upstream mat on top. Secure with two rows of ground anchoring devices staggered 12 in (300 mm) minimum apart on 12 in (300 mm) minimum intervals (see Figure 8). / Fold and secure mat rolls snugly into intermittent check slots. Lay mat in the bottom and fold back against itself. Anchor through both layers of blanket or mat at 1 ft (300 mm) intervals then backfill and compact soil (Figure 9). Continue rolling upstream over the compacted slot to the next check slot or terminal anchor trench. Check slots are placed at 25 to 30 ft (7.6 to 9.1 m) intervals perpendicular to flow. ;INSTALLATION G`UID FOR LANDLOK° TRMs AND PYRAMAT° _ _ 0°�fb• II��II .gq°o� Vo FIGURE O Installation of TRMs & HPTRMs in storm water channels 12'—trl • `�OV J 0 o O 12 j v 0 ' oono'� aC) " Backlill and i76. ijCJ{'G {712' compact n FIGURE © Initial anchor trench (downstream) detail q1� 02o04kna 8°< i0 OO Q w:Y.��Q�on(12'� QQofl compact �0 aQppoap9X� �.(2-0O Da aoo �O°O�cfVO✓Oo'DQaOp eOQi_o4.o ,pip oQ �v ooQ�O dp00��� D� b o. FIGURE Q Longitudinal anchor trench detail (trapezoidal channel) NOT TO SCALE / An alternate method to the intermittent check slot is the simulated check slot. This method includes placing two staggered rows of anchors on 4 in (100 mm) centers at 30 It (9.1 m) intervals (see Figure 10). ► Excavate terminal anchor trench 12 in wide x 12 in deep (300 x 300 mm) minimum across the channel at the upstream end of the project (see Figure 11). Deeper terminal anchor trench is needed in channels that have the potential for scour. ► Anchor, backfill and compact upstream end of mat in 12 x 12 in (300 x 300 mm) minimum terminal anchor trench (see Figure 11). Unroll mat in downstream direction over compacted trench with a minimum 2 If (600 mm) lap. Secure with anchors in accordance with Figure 8. / Secure mat using suggested ground anchoring devices (see Tables 1 and 2 on page 7) for appropriate frequency and pattern (see Anchor Pattern Guide on page 7). / Seed and fill with soil for enhanced performance. See Soil Filling Section on page 8. ► When using Landlok® 1051, seed after installing mat and then fill with soil. 1 Irrigate as necessary to establish/maintain vegetation. Do not over irrigate. NOTE: It you encounter roll with factory overlap, install factory seam such that it shingles in the direction of the flow of water. Place anchoring devices in accordance with Figure 8 "Overlap at roll end' on page 5. FIGUREa Overlap at roll edge FIGURE Q Overlap at roll end —► FIGURE Q Intermittent check slot (channels) 4" max. Anchor devices (typ.) (rYp) O O O O AlpO 4" max. (yp) O O O r 0+ O O I ; 2" max. (ryp) I I I I i —' I 3I' max. (yp.) H(typ)4 O O O ?O O r 4" max. (typ) O O O( I ' 0+ O O 2" max. (yp) r . FIGURE (E) Simulated check slot Jc J�oQQ � po 0 ' '�� ,� (j'p OC 12.. •C L oQG .. .(�'o c•o Backrill and 0�12" _/ compact --)* FIGURE ® Terminal anchor trench (upstream) detail INSTALLATION GUIDELINES FOR LANDLOK° TRMs AND PYRAMAT° HPTRMs SPECIAL TRANSITION GUIDELINES / Rock Riprap Excavate an anchor trench 12 x 12 in (300 x 300 mm) minimum at the transition between the mat and the rock riprap. Place roll end into anchor trench and secure with suggested anchoring devices at 12 in (300 mm) minimum intervals. Position adjacent rolls and secure in anchor trench in same manner. Backfill the anchor trench with rock riprap. Place rock riprap as specified, extending approximately 3 ft (1 m) minimum beyond the anchor trench onto the mat. / Concrete Alternative 1: Concrete Apron - Place ready mixed concrete directly onto a 3 ft (0.9 m) wide minimum strip of mat. Alternative 2: Concrete Backfill Excavate an anchor trench 12 x 12 in (300 x 300 mm) minimum at the edge of the concrete structure. Place roll end into anchor trench and secure with suggested anchoring devices at 12 in (300 mm) minimum intervals. Position adjacent rolls and secure in anchor trench in same manner. Backfill trench with concrete slurry. Alternative 3: Bolt to Structure (HPTRMs Only) - Cast threaded dowel in fresh ready mix concrete or install expanding bolt into cured concrete. Then affix HPTRM with washer (minimum 2 in or 50 mm diameter) or batten strip and bolt. ► Pipe Inlets/Outlets (HPTRMs Only) Review the construction drawings and project specifications to evaluate the required area to be treated. Excavate an anchor trench 12 x 12 in (300 x 300 mm) minimum above the pipe to bury end of HPTRM roll. The trench shall be located a minimum 2-3 ft (600-900 mm) above the pipe inlet/outlet. Backfill and compact soil into trench. Cut HPTRM to meet project requirements, slope length and pipe diameter. Unroll HPTRM down the slope and secure around pipe circumference with ground anchoring devices spaced 6 in (150 mm) minimum. Also, the HPTRM can be secured around the pipe in a 12 x 12 in (300 x 300 mm) minimum trench filled with concrete slurry. GROUND ANCHORING DEVICES / Ground anchoring devices are used to secure the mat to the soil using the suggested anchor device (see Tables 1 and 2 on page 7) at a minimum frequency and pattern shown on the Anchor Pattern Guide on page 7. ► U-shaped wire staples or metal geotextile pins can be used to anchor mat to the ground surface. Wire staples should be a minimum thickness of 8 gauge (4.3 mm), Metal pins should be at least 0.20 in (5 mm) diameter steel with a 1 1/2 in (38 mm) steel washer at the head of the pin. Wire staples and metal pins should be driven flush to the soil surface. All anchors should be between 6-24 in (150-600 mm) long and have sufficient ground penetration to resist pullout. Longer anchors may be required for loose soils. Heavier metal stakes may be required in rocky soils. j TABLE 1: SUGGESTED GROUND ANCHORING DEVICE SELECTION* 3 rQm AMEX LANEECBs O I O �11 o LANDLOKO TRMs O O j ra 6 r"- I PYRAM-T® [ O O �h O I l = e SLOPES O O O O _ - — - - -- - ter--- --- {-- - — Ir--------- O� BANKS �r_._._ ---------� -- I CHANNELS O O O I TABLE 2: SUGGESTED LENGTHS OF GROUND ANCHORING DEVICES' OIII�I fl©�MOM ROCKY O — — a CLAYEY O O Y w O O ( TSILTY � SANDY O O 'The performance of ground anchoring dedces is highly dependent an numerous site/project specific variables It is the sole responsibility of the project engineer and/or contractor to select the appropriate anchor type and length. Anchoring shall be selected to hold the mat in intimate contact with the soil subgrade and resist pullout in accordance with the project's design intent. i i 1:1 ANCHOR PATTERN GUIDE` '1 I i The shaded areas in the diagram provide anchor suggestions D 2.1 based on slope gradient and/or anticipated flow conditions. When the correct number of anchors has been determined, refer to the four illustrations below t0 establish anchor pattern. Increased anchoring may be required depending �,�CNDRSNd9 3:1 t1 h j upon Site Conditions. i1.a ANCHORsImt MODERATE SLOPES 1.2 ANCHORINm' (1 ANCHORNd') T ♦ e ♦ T 2 m ( }gyp) ( m in 0.9 m1711) 0.9m1J dl —71"` 1711) 1.Dm �. 9.9 f11- 1.9m �.0.9m171n-♦ I II '�t -� 1iA (fill) m 13 (61n -4- ♦ �♦ D3 rn 1II 1.2m 17111 ♦ 1un 1 1 0 0 e 1,2 ANCHORSAn' 1.8 ANCHORS/in' 2.5 ANCHORS/nt' 3 ANCHORSAW (1 ANCHORNd') (1112 ANCHORSlyd') (2 ANCHORSNd') (211e ANCHORS/ydt) SOIL FILLING / Soil filling is suggested for optimum performance. / After seeding, spread and lightly rake ''/2-'/4 in (12-19 mm) minimum of fine site soil or topsoil into the mat and completely fill the voids using backside of rake or other flat tool. / If equipment must operate on the mat, make sure it is of the rubber -tired type. No tracked equipment or sharp turns are allowed on the mat. ► Avoid any traffic over the mat if loose or wet soil conditions exist. 1 Smooth soil -fill in order to just expose the top netting of matrix. Do not place excessive soil above the mat. 1 Broadcast additional seed and install a Landlok° ECB above the soil -filled mat (if desired). / Hydraulically -applied mulch or seed may be used as an alternate to soil -fill on select applications. Consult manufacturer's technical representative for more information. ► Consult manufacturer's technical representative or local distributor for installation assistance, particularly if unique conditions apply (sandy soils and infertile environments). MAINTENANCE All slopes, channels, banks and other transition structures shall be maintained to assure the expected design life of the reinforced vegetated system. Here are a few tips that should prove helpful: ► Monitoring • Should be conducted semi-annually and after major storm events.This should include: observing the condition of the vegetation; testing the irrigation system; checking condition of all permanent erosion control systems; observing sediment and debris deposits that need removal. 1 Vegetation • Repair and maintenance of various types of vegetation shall be consistent with their original design intent, including: Grass/Turf Areas: applications shall be maintained for adequate cover and height. Mowing: grasses shall be mowed according to normal maintenance schedules as determined by local jurisdictions or maintenance agreements; operations shall not start until vegetation achieves a minimum height of 6 in (150 mm); mower blades shall be greater than 6 in (150 mm) above the mat. Unvegetated Areas: shall be re -seeded and soil -filled (if applicable). ► Sediment and Debris Deposits Accumulation of sediment and debris can reduce the hydraulic capacity of channels, clog inlet and outlet structures and can damage existing vegetation. Sediment and debris removal is a vital part of system maintenance. - Removal: shall be done carefully to avoid damage. When excavation is within 12 in (300 mm) minimum of matting, removal shall be done by hand or with a visual "spotter" If equipment must operate on the mat, make sure it is of the rubber -tired type. No tracked equipment or sharp turns are allowed on the mat. • Alternatively, "stake chasers" or some other form of permanent visual markers can be utilized to provide a visual marker for maintenance activities. lo Damaged Sections Missing or damaged sections of the matting should be replaced per the installation guidelines. Repairing Rips or Holes: these should be patched with identical matting material. First, carefully cut out the damaged section with a knife. Then replace and compact soil to the elevation of the surrounding subgrade and plant seed. Cut a piece of replacement material a minimum of 12 in (300 mm) larger than the rip or tear. Use ties to attach the replacement material to the existing material. At overlaps, the upstream and upslope material should be on top. Secure the replacement material with ground anchoring devices spaced every 6 in (150 mm) around the circumference of the repair and at the frequency and spacing shown in the Anchor Pattern Guide on page 7. Seed and soil fill replacement area. a, Propex Inc. PH: 423 899 0444 PR:PEX I THE ADVANTAGE CREATORS" 6025 Lee Highway, Suite 425 PH: 800 621 1273 PO Box 22788 FAX: 423 899 7619 GEOSYNTH1ETICS Chattanooga, TN 37422 www.geotextile.com GeoMY. LendbF', P,weneP, XB', SUPerGro'. PekwnaP,, Perdl . Pro GUmd' W PelmGrid' we regMered vedemmW of Rope„ f. THIS PUBLICATION SHOULD NOT BE CONSTRUED AS ENGINEERING ADVICE. WHILE INFORMATION CONTAINED IN THIS PUBLICATION IS ACCURATE TOME BEST OF OUR KNOWLEDGE, PROPEX ODES NOT WARRANT ITS ACCURACY OR COMPLETENESS. THE UU1 MALE CUSTOMER AND USER OF THE PRODUCTS SHOULD ASSUME SGLE RESPONSIBILITY FOR THE FINAL DETERMINATION OF THE SUITABILITY OF THE INFORMATION AND THE PRODUCTS FOR THE CONTEMPLATED AND ACTUAL USE. THE ONLY WARRANTY MADE BY PROPEX FOR ITS PRODUCTS IS SET FORTH IN OUR PRODUCT DATA SHEETS FOR THE PRODUCT OR SUCH OTHER WRITTEN WARRANTY AS MAY BE AGREED BY PROPEX AND INDIVIDUALCUSTOMERS. PROPER SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR ARISING FROM PROVISION OF SAMPLES, A COURSE OF DEALING OR USAGE OF TRADE. Contech Turf Reinforcement Mat C - 35 MARV' PROPERTY TEST METHOD ENGLISH METRIC Physical blass4lnt Area ASTI.t D5261 80 o_:yd' 271 grin' Thickness AST,,. D1777 0.351n 2.9mm RosiliencrA A.STF4 D1777 8095 20`.11 Wiswre .Absortion ASTh1 D57C 0.01N irnax) •=,011i, imax) Pofosi;• Cilculwed 0 5% 565% 7 Ground Cagier Factor Ligh; Projection An sis . O.e -- ,o n..•S Mechanical Grab Tensile Strength .ASTFd D5035' 145 x. 110 Ib7@ 2.1 x 1.6 i,Nvn3 GmL• Elongation 50% )max) 50% imaxl Grab Tensi'e SUength !C91C% Elonaalicn ASTFA D5C35 1CO x 70Ib:fi 1.5 x 1.0 kN m Endurance UV Res;stance ',p 1000 hm ASTM D4355 EO% 20% Roll Sizes 65x 133.51 2.0, 422 rn Special Roll Size 3.25 x 138.511 975x 138Fh 13.0x 1M.511 1.0 x 42.2 m 3.0 x 42.2m !Dx422m NOTES: The pmpern .aloes lm,d,b.,e an Nfernre ei1099 cod an..bjecno rU.,, nith.m..fire. `: olun for m,:'va a.! ....... rL.e, re.;e:'.. e!e, nodu on or umm:ed :cn!cno.%.:di.mmn aces Fe roa calms O:ARV) an col:.lpe4 as :Le pyiul n r%ascs u. iard dec:uiovs. S:sys zidly a xieldt . 97.791 de,ree .(coa5deme ivr ny s.., lie rain 5.. C..L, asmn.ae :esia,• sill e:untl the . al.ereponf!, T3piol oLaas%.e. or acerls-- of oU rest tan, For.et!r m: ma'.ws A=Di633. `.f odafied ASCd D 1777 uso; 6` press.. pin .ad D.: k,'A Reath1=y deC.ed m pe::nr of cril.11 rLckeess re iced ifre: 3 :vc!es of a IDD p: toed nr 60 second% Cc[!ou'e6 by 6D -rends vithucr loss .:Moline%% tmo% ned 30 veas.ed o':eroad iemoced be AM: DI 777 9orosi� eslcu!ancsa ba%ed npoo miss pet not, area. :iirives , and speci9: nraiiry Gm:md C over F... . nsuu.r I, lksi.' tom Latin Liabr p: o;amv Teu. om W ECS CAROLINAS, LLP cwmoLuvws Geotechnical • Construction Materials • Environmental • Facilities June 17, 2008 Mr. Riley Evans Sankey Properties, LLC P.O. Box 847" Clarkton, North Carolina 28433 Re: Seasonal High Water Level Estimation West Gate Best Western Hotel Leland, North Carolina ECS Project No. 22.13567 Dear W. Evans, ECS Carolinas, LLP (ECS) recently conducted an estimation of the Seasonal High Water Level (SHWL) for the proposed wet pond areas at the West Gate Best Western Hotel in Leland, North Carolina. This letter, with attachments, is the report of our estimation. Field Testing On June 16, 2008 ECS conducted an exploration of the subsurface soil and ground water conditions at the site. The location was staked out utilizing GPS equipment. The purpose of this exploration was to obtain subsurface information of the in -place soils for the proposed wet pond area. We explored the subsurface soil and ground water conditions by advancing one hand auger boring into the existing ground surface. We visually classified the subsurface soils and obtained representative samples of each soil type encountered. We also recorded the ground water level observed at the time of each hand auger boring. The attached SHWL sheet provides a summary of the subsurface conditions encountered at each hand auger boring location. The ground water level and the seasonal high ground water level (SHWL) were estimated at each boring location below the existing grade elevation. Below is a summary of each boring location. Location Water Level SHWL 1 32inches 12 inches The elevation of the location was 10.5 feet above mean sea level. The elevation of the seasonal high water table is approximately 9.5 feet above mean sea level. The boring is located at latitude 34 12' 31.6" and longitude 78 01' 40.8". 7211 Ogden Business Park • Suite 201 ° Wilmington, NC 28411 * (910) 686-9114 * Fax (910) 686-9666 • www.ecsfniited.com Asheville, NC • Charlotte, NC • Greensboro, NC • Greenville, SC • Raleigh, NC • Swansboro, NC * • Wilmington, NC * testing services only SHWL Estimation West (late Best Western Hotel Leland, North Carolina ECS Project No. 22.13567 The SHWL may vary within the proposed site due to changes in subsurface conditions and elevation. If you have any questions regarding this report, please contact us at (910) 686-9114. Respectfully, ECS CAROLINAS, LLP �VJ'GV��o Winslow Goins, P.E. Project Engineer Attachments: SHWL sheet odu]0'9-�- Walid M. Sobh, P. E. Principal Engineer Season High Water Level Estimation West Gate Best Western Hotel Leland, North Carolina ECS Project No. 22.13567 June 18, 2008 Location Depth Soil Description 1 0-26" Tan Gray Orange Fine SAND with Clay 26-32" Gray Silty SAND Seasonal High Water Table was estimated to be at 12 inches below the existing grade elevation. Ground water was encountered at 32 inches below the existing grade elevation. Hanover Design Services, P.A. Land Surveyors, Engineers, Land Planners RFCEWED June 17, 2008 By: Ms. Christine Nelson, Environmental Engineer Wilmington Regional Office Water Quality Section Department of Environment and Natural Resources Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 27405-3845 Re: West Gale Best Western Hotel & Restaurant Brunswick County DWQ#,5W8 080514 . Express Modification submittal Dear Christine: A A ink f� V 13o� I have included our comments in corresponding order regarding your request for additional information for the West Gate project. 1) The Secretary of State filing issue has been resolved. (The website has been updated to match) 2) Completed as requested. (Also I have provided the latest Wet Detention Basin Supplement since this has been revised on the DENR website since our initial submittal) 3) Revised as requested using 3.8 inches. (We will now be using the NOAA website you provided on all future projects in order to maintain consistency and ease of review) 4) See attached documentation supplied to us by ECS-Carolinas. 5) The figures provided are correct, the pond (main body) and forebay have two separate elevations. The elevations should be read from 11.0 to 10.0, 10.0 to 9.0, etc. This explains why there is no volume give at 11.0 since these figures are incremental as the actual measurement cannot take place until you apply a "z" value. So the volumes shown at elevations 0.0 and 2.0 in essence do not exceed their respective depths. Call me to discuss this please, at your convenience. 6) The details have been revised to clarify that the 3:1 side slopes are to be vegetatively stabilized and the 1:1 side slopes above the State storage elevation are to be reinforced with rip -rap or other suitable means. 7) The forebay wall has been extended to the permanent pool elevation with a 20' weir cut added to increase the pond function as requested. 8) Please see the attached documentation and the plans have been updated to include the specifications. 9) Enclosed as requested. If you have any questions or require additional information, please do not hesitate to call me. Sincerely, David Brown Hanover Design Services dbrown@hdsilm.com 6309-BW-dwq-4.doc 1123 Floral Parkway Wilmington, N.C. 28403 Phone (910) 343-8002 Fax (9f0) 343-9941 OCPAm1011^t(Na € LIMITED LIABILITY COMPANY ANNUAL REPORT NAME OF I.IMITI D LIABlu''Y COMPANY: Sankev Properties LLC SECRETARY OIL S'I'A'1'E l..L.C. ID NUMl3ER: 0905633 NATURE OF 13USINESS: Real Estate Holding REGISTERED AGENT: Evans, Riley&. IZEGIST'ERIiD OFI ICE MAILING ADDRESS: P. O. Bo.Y 8d7 Clarkton, NC 28433 I -Filed Annual Report -1-0-8176904 For year 2008 Do not data enter manually. S'rA'I'1, OF INCORPORATION: NC REGIS'ITIZED OFFICI,'S'I'IZIiE'I' ADDIZESS: 1442 Cmupbell Road Clarkton, NC28d33 81aden County PRINCIPAL OFFICE'IT"LI 7 PI LONE NUMBER: (910) 648-6887 PRINCIPAL OFFICE' MAILING ADDRESS: P. O. Box 847 Clarkton, NC 28433 PRINCIPAL OFFICE STRETT ADDRESS: 1442 Ctmtpbell Rotul Clarkton, NC 28433 MANAGER SIMI,MI3IiRS/ORGAN IZ.ER S: Name: Riley .SEvans Title: Manager Address: PO Box 847 Clarkton, NC 28433 CERTIFICATION OF ANNUAL RETORT MUSTBE COMPLGI'ED 13Y ALL LIMITED LIABILITY COMPANIES Riley Evans FORM MUST BE SIGNED 13Y A b1ANAGERAIEMBF,R Riley I:ivans 06117/2008 DATE Manager TYPE OR PRINT NAME TYPE OR PRINT TITLE ANNUAL REPOR'r FEE: $200 MAIL TO: Secretaryof State • Corporations Division • Post Office Box 29525 • Raleigh„ NC 27626-0525 Jun 17 08 06:47a Eno Point 91064 _• c1+u1w�17oo AKMALREPORT NAME OFLIMIT13DLIABILITYCOMPANY; 5awlwPAopommsLLC SECRETARY OF STATU L.I. C. ID M11tiIDER: 090631 NATUREOFSUSINE88: C--•,4fc REOISTERM ADENT: :fw m,1079y S. R&GISTERSOOPFICEMAILINGAODREBS: P0.86r847 Clarhtax, NC 28433 Date Filed: 6/17/2008 11:15:00 AM Elaine F. Marshall North Carolina Secretary of State C200812001706 r'— TMD-TDtoHASI. 11C]RCCt'1L9: d/39721M81:3b:10 PM Elalko F. Hani n8 North CaPO1:m Sarmtow Of StaCa C21A1192MI1746 8'fAIR OF 11NCORPORATIUN: Ar REGISTEM OFFICE STRM ADDRWS: 1441 Cave pUfl Ramf Ctwjwo^ Ac 18433 Bkft Ca:/ngr SIONATURB OF THE NEW RE018TERM AOENS': �.�...�...�_"' . .. A. Y C' �a COWMUM CONST2n to THE APPOWT1 I5N PRINCIPAL.(I FICT.TRISPHONF.N!mWFR: 1 �C G G" iGW / PRINCIPAL OFFICE MAILING ADORiSS: P. 0. BoxB47 C1er14an, NC 18433 PRINCB'AL OFFICE STREET ADDRESS: 7441 Campbell ROmi Cksdt ". NC U453 Nemc: t1 S. 0.n5 C Name: Name; ftUm A Q�„TiOr. Title: A4drey: Pp P oK $4'l Addrrss: Address; City: CkQA .•�.,m City: City: State: ► — . 1% State: LtP: 9t4m: zip-, CERt TTON OF ANNUAL REPORT MUST BE CONOL&TED BY ALI. LIMM-0 LIAE ' COWANI&I y/tom IMt7PTSEQGNEORTAMANAORIVMBMBER OATS rYPzaat'a1M NAME Tr+Sol Synimr- raz ANNUAL aEPORT PEE: MC MAIL'fo: Snielwy ar S1s:A • CwpvaBaro OMdaa • 7a'4 CBks Uat 29521 • PatLw,. N.: 276760521 I��Y�II�tl1� North Carolina Secretary of State Page 1 of 1 North Carolina Elaine F. Marshall DEPARTMENT Ol= THE Secretary SECRETARY OF STATE PO Box 29622 Raleigh, NC 27626-0622 (9191807-2000 CORPORATIONS Corporations Home Search By Corporate Name Search For New Corporation Search By Registered Agent Important Notice Corporations FAQ Homeowners' Association FAQ Tobacco Manufacturers Dissolution Reports Non -Profit Reports Verify Certification Online Annual Reports LINKS & LEGISLATION KBBE B2B Annual Reports SOSID Number Correction 2001 Bill Summaries 1999 Senate Bills Annual Reports 1997 Corporations 1997 Register for E-Procurement Dept. of Revenue ONLINE ORDERS Start An Order New Payment Procedures CONTACT US Corporations Division TOOLS Secretary of State Home Secretary of State Site Map Printable Page Year count is a comparison between the number of annual reports that have been filed verses the number of reports that were due. The accepted column indicates whether your document has been accepted for filing by our office. Annual Reports for: Sankey Properties LLC Date Formed: 3/27/2007 Previous Annual Report Submissions: According to N.C.G.S. 57C-2-23, all LLC Annual Reports are due on April 15th of the current year. Prior to the 2002 legislative changes, most LLCs due date for filing their Annual Report fell in the next calendar year, according to when their fiscal year ended. htlp://www.secretary.state.nc.us/corporations/AnnualReportCount.aspx?PItem]d=8176904 6/2/2008 -.• North Carolina Secretary oPRECEIVEDShtte MAY 1 8 2008 Page 1 of 1 BY: OFo51 [F(I pi.l Dl nia '. ,• North Carolina 1:► T,:.. Elaine F. Marshall l_ EFARTMr f I r Secretary �ECRET�`Y ot-=)T.T= PO Box 29622 Raleirth, NC 27626-0622 9191607-2000 CORPORATIONS Corporations Home Search By Corporate Name Search For New Corporation Search By Registered Agent Important Notice Corporations FAQ Homeowners' Association FAQ Tobacco Manufacturers Dissolution Reports Non -Profit. Reports Verify Certification Online Annual Reports LINKS & LEGISLATION KBBE 32B Annual Reports SOSID Number Correction 2001 Bill Summaries 1999 Senate Bills Annual Reports 1997 Corporations 1997 Register for E-Procurement Dept. of Revenue ONLINE ORDERS Start An Order New Payment Procedures CONTACT US Corporations Division Secretary of State's web site TOOLS Secretary of State Home Secretary of State Site Map Printable Page Date: 1 /23/2008 Click here to: View Document Filings I Print apre-populated Annual Report Form I Annual Report C, Report I Corporation Names Name Name Type NC Sankey Properties LLC Legal Limited Liability Company Information SOSID: 0905633 Status: Current -Active Date Formed: 3/27/2007 Citizenship: Domestic State of Inc.: NC Duration: Perpetual Registered Agent Agent Name: Registered Office Address: Registered Mailing Address: Principal Office Address: Principal Mailing Address: Evans, Riley S. 1442 Campbell Road Clarkton INC 28433 P. O. Box 847 Clarkton NC 28433 1442 Campbell Road Clarkton NC 28433 P. O. Box 847 Clarkton NC 28433 For questions or comments about the Secretary of State's web site, please send e-mail to Webmaster. littp://www.secretai,y.st,ite.nc.uslcorporationsICorp.aspx?Pitcmld=8176904 1 /23/2008 State of North Carolina Department of the Secretary of State Limited Liability Company ARTICLES OF ORGANIZATION Date Filed: 3/27/2007 2:25:00 PM Elaine F. Marshall North Carolina Secretary of State C200708601058 Pursuant to §57C-2-20 of the General Statutes of North Carolina, the undersigned does hereby submit these Articles of Organization for the purpose of forming a limited liability company. 1. The name of the limited liability company is: I r 1-4, L 2. If the limited liability company is to dissolve by a specific date, the latest date on which the limited liability company is to dissolve: (If no date for dissolution is specified, there shall be no limit on the duration of the limited liability company.) 3. The name and address of each person executing these articles of organization is as follows: (State whether each person is executing these articles of organization in the capacity of a in,ber, organizer or both. Note: This document must be signed by all persons listed here). 4. The street address and county of the initial registered office of the limited liability company is: Number and Street City, State, Zip Code,�� CountyL4qc. 5. The mailing address, if different from the street address, of the initial registered office is: -a �� �lQ �-lyz 6. The name of the initial registered agent is `� � I-e S tr v cchS Principal office information: (Select either a or b.) a. D'fhe limited liability company has a principal office. The street address and county of the principal office of the limited liability company is: Number and City, State, 2 The mailing address, if different from the street address, of the principal office of the corporation is: fo p oar �"�D l �!'fy:53 b. ❑ The limited liability company does not have a principal office. C aq. 8. Check one of the following: (i) Member -managed LLC: all members by virtue of their status as members shall be managers of this limited liability company. (ii) Manager -managed LLC: except as provided by N.C.G.S. Section 57C-3-20(a), the members of this limited liability company shall not be managers by virtue of their status as members. 9. Any other provisions which the limited liability company elects to include are attached. 10. These articles will be effective upon filing, unless a date and/or time is specified: This is thee6ay of,ih� , 20 0 '2 J�— � Signature Akhk l ORGA?„ 4` Type or Print Name and Title NOTES: 1. Filing fee is $125. This document must be filed with the Secretary of State. CORPORATIONS DIVISION P.O. Box 29622 RALEIGH, NC 27626.0622 RE: Best Westem-SW Project No. 080514 Subject: RE: Best Western -SW Project No. 080514 From: "David Brown" <dbrown@hdsilm.com> Date: Thu, 12 Jun 2008 09:25:17 -0400 To: "Christine Nelson" <Christine.Nelson@ncmaiLnet> CC: <rsejncsu82@aoLcom>, <japefs@aol.com>, "David Hollis" <dhollis@hdsilm.com> Hi Christine, I would prefer to return it on the 18th to allow a little extra time for the Secretary of State processing Due to the circumstances involved everyone on our end understands that this is not your normal method of handling applications. We really appreciate the fact that your office has made an exception on our behalf and we understand that any delay in the permit release will have stemmed from us. Please call me if you need anything else. Thanks! David Brown Balmver Design Services, PA 117,1 flm'al Parkway YlfdminDIA NC 28403 810 34U002 From: Christine Nelson [mailto:Christine.Nelson@ncmail.net] Sent: Thursday, June 12, 2008 8:11 AM To: David Brown Cc: Janet Russell Subject: Re: Best Western -SW Project No. 080514 Hi David, Are you planning on getting it back to me on the 18th or prior to the 18th? I'm taking vacation starting the 20th and I'd rather take care of it before I left . Otherwise it may sit in my office until I return on the 26th. Christine David Brown wrote Hi Christine, You must be out of your office today. We'd like to request an extension for the ad info deadline regarding the Best Western project. If it doesn't pose a problem we would like to extend the deadline to June 18th (next Wednesday). The soil scientist are scheduled to make the seasonal high water table information available to us sometime in the next day or so and Stan Johnson of Sankey is working diligently to resolve the Secretary of State issue. On a side note, I spoke with Candi Alexander about the Change of Ownership paperwork for SW Project No. 990807 and she has obtained the necessary signatures. The agent listing process for the new owner should be complete on file with the Secretary of State very shortly. Thanks! David Brown Balmver Design Services, PA I of 2 6/12/2008 9:27 AM F WATE �Q 9Q Michael 17. Easley, Governor 0 William G. Ross Jr., Secretary r North Carolina Department of I>m•ironment and Natural Resources 'C Coleen H. Sullins Director Division of Water Quality June 3, 2008 Riley S. Evans, Manager Sankey Properties, LLC PO Box 847 Clarkton. NC 28433 Subject: Request for Additional Information Stormwater Project No. SW8 080514 West Gate - Best Western Hotel & Restaurant Brunswick County Dear Mr. Evans: The Wilmington Regional Office received a State Stormwater Management Permit Application for West Gate - Best Western Hotel & Restaurant on May 19, 2008. A preliminary review of that information has determined that the following is needed to continue the stormwater review: The applicant, Sankey Properties, LLC, does not appear to have an approved filing or annual report on the corporation website database maintained by the North Carolina Secretary of State. Sankey Properties, LLC must be registered with and approved by the North Carolina Secretary of State and you should also be listed as the manager or member. 2. Complete the Peak Flow Calculation section on page 1 of the Wet Detention Basin supplement to at least provide the 1-yr, 24-hr rainfall depth. 3. According to the hydrograph report for the 1-yr, 24-hr predevelopment condition, the total precipitation used for this storm event was 3.00 in. Provide documentation supporting this rainfall depth for the 1-yr, 24-hr storm. The NOAA Precipitation Frequency Data Server website (http://hdsc.nws.noaa.gov/hdsc/pfds/orb/nc_pfds.html) indicates that the 1-yr, 24-hr rainfall depth at this location is approximately 3.8 in. 4. Provide a soils report containing the estimated Seasonal High Water Table elevation at the proposed wet pond location. The soils report provided with the application appears to only contain the depth to the water table. Please verify the Stage -Storage Table for the permanent pool provided in the calculations. Why does the pond have an incremental volume and incremental storage volume at an elevation of 0.0 ft in the main pool and 2.0 ft in the forebay? The supplement and plans report that this is the bottom of the permanent pool (i.e. the top of the sediment removal elevation), thus no volume should be available. Also, please explain why no volume is available/ shown at an elevation of 11.0 ft, the elevation of the permanent pool. 6. On the pond cross-section detail, provide the side slope for the vegetated shelf and the side slope for the area above the temporary pool (between elevations 12.0 and 13.0 on the left side of the cross-section). Additionally, the pond cross-section detail notes a 1:1 slope above elevation 13.0 near the outlet structure. All vegetated slopes shall be no steeper than 3:1. Nu`hcarolina ll aturully North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796-7215 Customer Service Wilmington Regional Office Internet: www.ncwateraualityorg Fax (910)350-2004 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer — 50% Recycledl10% Post Consumer Paper Riley S. Evans June 3, 2008 Stormwater Application No. SW8 080514 7. Extend the forebay wall to at least the permanent pool elevation and provide a weir to direct flow. Since the pond is small and compact, a weir must be provided in the forebay wall to prevent short-circuiting the pond and ensure the majority of the pond is utilized for treatment. 8. Provide the specifications for the materials used to stabilize the underwater 1:1 side slopes. 9. Please submit a $1,000 fee for the additional review required for this application. Please keep in mind that changing one number may change other numbers and require the calculations, supplements, and other supporting documentation to be updated. Verify all numbers are correct to ensure consistency in the application documents. Please note that this request for additional information is in response to a preliminary review. The requested information should be received in this Office priorto June 11, 2008, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. If you have any questions concerning this matter please feel free to call me at (910) 796-7323 or email me at christine.nelson@ncmail.net. Sincerely, Christine Nelson Environmental Engineer ENB/can: S:\WQS\STORMWATER\ADDINFO\2008\080514.jun08 cc: David S. Hollis, Hanover Design Services Christine Nelson Wilmington Regional Office Page 2 of 2 .request for additional info: SW Project No. 080514 Best Western &... r Subject: request for additional info: SW Project No. 080514 Best Western & Restaurant From: Christine Nelson <Christine.Nelson@ncmai1.net> Date: 'Cue, 03 Jun 2008 11:51:54 -0400 To: dhollis cr ee.rr.com, David Brown <dbrown@hdsilm.com>, rsejncsu82 n aol.com CC: Janet Russell <Janet.Russell@ncmail.net> Gentlemen, I have attached a pdf version of my request for additional information for Stormwater Project SW8 080514 - West Gate - Best Western Hotel & Restaurant. I will also send copies via mail. Thank you, Christine Express Stormwater Permitting NC-DENR 080514 -Best Western.pdf Content -Type: application/pdf Content -Encoding: base( I of 1 6/3/2008 1 1:52 AM RE: request for additional info: SW Project No. 080514 Best Weste... Subject: RE: request for additional info: SW Project No. 080514 Best Western & Restaurant From: "David Brown" <dbrown@hdsilm.com> Date: Tue, 3 Jun 2008 13:50:49 -0400 To: "Christine Nelson" <Christine.Nelson@ncmai1.net> CC: "David Hollis" <dhollis@hdsilm.com> Christine, It's official! I have completely lost my mind! I combined Dave's work email and my home email. It should be dhollis@hdsilm.com I forwarded those comments onto him so no need to resend. If you don't mind please cross through the ec.rr.com part and replace it with hdsilm.com. Or I can correct it and initial it once we return your comments on the ad -info. I'm in serious need of a vacation! Thanks! David Brown Hanover Design Services, P.A. 1123 Floral Parkway Wilmington, NC 28403 910 343-8002 -----Original message ----- From: Christine Nelson [ mailto: Christine Sent: Tuesday, June 03, 2008 1:18 PM To: David Brown Subject: Re: request for additional info: Western & Restaurant Nelson@ncmail.net] SW Project No. 080514 Best That was the e-mail address provided in Section VII on Page 4 of the application. David Brown wrote: Hi Christine, Who is dhollis@ec.rr.com? Thanks! David Brown Hanover Design Services, P.A. 1123 Floral Parkway Wilmington, NC 28403 910 343-8002 -----Original Message ----- From: Christine Nelson[mailto:Christine. Nelson@ncmail.net] Sent: Tuesday, June 03, 2008 11:52 AM To: dhollis@ec.rr.com; David Brown; rsejncsu82@aol.com Cc: Janet Russell Subject: request for additional info: SW Project No. 080514 Best Western I & Restaurant Gentlemen, I have attached a pdf version of my request for additional information for Stormwater Project SW8 080514 - West Gate - Best Western Hotel & t of 2 6/3/2008 1:52 PM State Stormwater Permit Application Tracking Cover Sheet Wilmington Regional Office Project Name: WEST GATE BEST WESTERN HOTEL & RESTAURANT Project Category: NEW Project Type: HD - DETENTION POND App Accept Date: 5/1812008 Application Fee And: $ /,/vW _ no Fee Check Nunther: -7,Z 0 Reviewer Name: NELSON, CHRISTINE Record the following information from BIMS after project has been entered! Permit Number (RIMS): o Si Please update the SW Access System by entering the Permit Number for the project! Date Entered in Access: Entered in Access By: Date Printed: 512012008 11:21:34 AM _ DWQ USE ONLY Date Received eq aid PP Permit Number _ State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original 1. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Sankey Properties. LLC t 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Riley S. Evans, Manager/M-f rn6 f 3. Mailing Address for person listed in item 2 above: City:Clarkton State: NC Zip: 28433 Phone: (910 ) 862-5812 Fax: ( ) 1',m-,iii:rseiilcsti82@,iol.com 4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): West Gate -Best Western Hotel & Restaurant 5. Location of Project (street address): Lots 2R & 13R Towne Lake Drive Leland, North Carolina 28451 City:Town of Leland County:Brunswick 6. Directions to project (from nearest major intersection): From Wilmington head south on US Hwy 17 to West Gate Drive: turn left onto West Gate Drive the right onto Towne Lake Drive. Project is located on the left (Lot 13R) and end of Towne Lake (Lot 2R). 7. Latihide:34deg 12' 32" N Longitude:78d 01' 44" W of project 8. Contact person who can answer questions about the project: Name:Riley S. Evans Telephone Number: (910 ) 862-5812 Email:rsejncsu82 n aol.com IL PERMIT INFORMATION: 1. Specify whether project is (check one): /1 []Renewal []Modification Form SWU-101 Version 8.07 Page I o1'4 k- ecify whether project is (check one): ®New ❑Renewal ❑Modification 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 ®I-ligh Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other 4. Additional Project Requirements (check applicable blanks): ❑CAMAMajor ❑Sedimentation/Erosion Control 0404/401Permit ❑NPDESStorntwater Information on required state permits can be obtained by contacting the Customer Service Center at -1-877-623-6748. III. PROJECT INFORMATION I. 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. wet retention/cletention pond 2. Stonnwaler runoff from this project drains to the Cape Fear River basin. 3. Total Site Area: 2.89 acres 4. 'Total Wetlands Area: 0 acres 5. '100' Wide Strip of Wetland Area: N/A acres (not applicable if no wetlands exist on site) 6. Total Project Area**:2.89 acres 7. Project Built Upon Area: 81 % 8. How many drainage areas does the project have?2 (DAI-New Pond) (DA2-Offsite) 9. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. I3asutlifgrntalio"n "t" t `'1 iq'DrarigeAreail,'"� t (,'DrainageiArea`2`,;',�'•''`�t Receiving Stream Name (JACKEYS CREEK) (JACKEYS CREEK) Stream Class & Index No. C;Sw 18-77-3 C;Sw 18-77-3 Drainage Area (sf) 68,073 57,804 Existing Impervious* Area (so N/A N/A Proposed Impervious*Area (sf) 1 47,650 54;{85 5y j °A Impervious* Area (total) 1 70% See Addendum Sheet Impervi us*Surface Arca F Drmn ge Area°1), y. s;;. Drvnage:Area ? .- _ On -site Buildings (sf) 5,525 18,725 On -site Streets (sf) - - On -site Parking (so 38,048 30,060 On -site Sidewalks (so 2,528 2,990 Other on -site (so Future 1,549 - wl)0 Off -site (sf) Total (so: 47,650 fdi k$J 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 8.07 Page 2 of 4 Westgate — Best Western Stormwater Management Summary Sheet - Additional Calculation Summary for NCDENR / DWQ : To existing pond (SW8 990807): Previously permitted DA = 1.327 acres (57,804 sf) Lot 2 Previously permitted impervious 85% (49,130 sf) and 5,055 sf cul-de-sac roadway Total = 54,185 sf allowed to existing pond Proposed : DA = 57,804 sf (same area, different configuration) Impervious areas: Building area = 18,725 sf Parking BC = 30,060 sf Sidewalk = 2,990 sf Misc. future (other)=-272-25 sf a910 Total='54-,ON sf proposed to existing pond 54I 85 To new pond (Pond No.1): Proposed : DA = 68,073 sf Impervious areas: Building area = 5,525 sf Parking BC = 38,048 sf Sidewalk = 2,528 sf Misc. future (other) = 1,549 sf Total = 47,650 sf proposed to new pond 6309-wg-bestwesterndwq 2.doc 10. How was the off -site impervious area listed above derived?N/A IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the following 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. Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required in the above form, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SW401-Low Density Low Density Supplement FormSW401-Curb Outlet System Curb Outlet System Supplement Form SW401-Off-Site System Off -Site System Supplement Form SW401-Wet Detention Basin Wet Detention Basin Supplement Form SW40'1-Infiltration Basin Infiltration Basin Supplement Form SW401-Infiltration Trench Underground Infiltration Trench Supplement Form SW401-13ioretention Cell Bioretention Cell Supplement Form SW401-I.evel Spreader Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Form SW401-Wetland Constructed Wetland Supplement Form SW401-Grassed Swale Grassed Swale Supplement Form SW401-Sand Filter Sand Filter Supplement Form SWU-101 Version 8.07 Page 3 of 4 V;%. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the interactive online map at httn'//h2o enr state.nc.its/su/msi maps.hhn) 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. Initials • Original and one copy of the Stormwater Management Permit Application Form —4a3?3 • Original and one copy of the Deed Restrictions & Protective Covenants Form 'NSA • Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP -:r�a13 • Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR -bBB • Calculations & detailed narrative description of stornovater treatill ent/management �St3 • Copy of any applicable soil report BBB • Three copies of plans and specifications (sealed, signed & dated), including: BBB - 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 casements, pipe sizes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) VI1. AGENTAU7'HORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm):David S. Hollis, PE,PLS Mailing Address:'1123 Floral Parkway City:Wilmington State:NC Lip:28403 Phone: (910 ) 343-8002 Email dhollis©ec.rr.com Vlll. APPLICANT'S CERTIFICATION Fax: (910 ) 343-9941 1, (print or type name of person listed in General Information, item 2) Rilet/ S. Evans, Manager 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 21-1 .'1000. Signature: /J Date: I Form SWU-101 Version 8.07 page 4 of 4 Permit No. w mosl q (to be provided by EiJVQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM OFF -SITE SYSTEM SUPPLEMENT FOR DEVELOPMENT DRAINING TO PERMITTED 0I717-SI'1'1?'1'Rl7A'I'MI7N7' SYSTEMS This form nmy be photocopied fir use as an original DWO Stormwater Management Plan Review: A complete stormwater management plan submittal includes a stormwater management permit application, an off -site system supplement for each off -site stormmwater treatment system, appropriate supplement forms for any on -site stormwater treatment systems, and plans and specifications showing all stormwater conveyances and drainage details for the project. 1. PROJECT INFORMATION Project Name : WEST GATE -BEST WESTERN HOTEL & RESTAURANT Contact Person: RILEY S. EVANS Phone Number: ( 910)862-5812 Is all drainage from the project directed to the off -site system'? (check one): ® Yes ❑ No IL OFF -SITE SYSTEM INFORMATION (please complete the following information for the off -site system that will treat runoff from your project): Permit No. SW8 990807 Project Name:West Gate Type of System (wet pond, infiltration basin, etc.):wet pond Lot No. (if part of a subdivision):Tract #2 How much built upon area draining to the permitted treatment system has been allocated to this project?85%(54,185 sf) III. REQUIRED ITEMS CHECKLIST Prior to issuing an off -site permit, verification of the following information must be provided. Initial in the space provided to indicate that the following requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. Forni SW401-0ff-Site System-Rev.l Page I of 2 A`,^:pi'ie2its Initials SBA a. Deed restrictions limiting the built -upon area on the site have been recorded. CBEb. Engineers certification for the existing off -site system has been submitted to DWQ. I>BB c. There are no outstanding Notices of Violation for the off -site system. a;R'B d. Off -site system is in compliance with the issued permit. IV. STORMWATER COLLECTION SYSTEM MAINTENANCE REQUIREMENTS Mowing will be accomplished as needed according to the season. Grass height will not exceed six inches at any time. 2. Accumulated sediment and trash will be removed from the collection system as necessary. Swales and ditches will be reseeded or sodded following sediment removal. 3. Eroded areas of swales and ditches will be repaired and reseeded. Swales and ditches will be revegetated as needed based on monthly inspections. The collection system, including catch basins, curb cuts, velocity reduction devices, and piping, will be inspected monthly or after every significant runoff producing rainfall event. Trash and debris will be cleared away from grates, curb cuts, velocity reduction devices, and piping. The collection system may not be altered in any way without prior approval from NCDENR Division of Water Quality. I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater collection system in accordance with the five maintenance procedures 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 Titic:Riley S. Evans Manager Address:P O Box 847 Clarkton, NC 28433 Date: 1/29/08 Note: The legally responsiKile party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of dte subdivision has been named the president. ��� a tary. Publicforthe State of rGi "County of ell do 4il, reby certily that /(A personally appeared before me this��� day of Gjr�_, �, and acknowledge the due execution of the forgoing document including the stonnwater collect I system nw ntenance requirements. Witness my hand and official seal, M9% Notary -0 r = No ry Public —� Public U= My commission expires Form SWU-106'0�Z&Oulkk Page 2 of 2 llllllllN� Permit ` (to be provided by DWO) ®TA. OF WATFAC A" OG NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. Ir�PR09ECT INF,QRMATION ¢t h° rq Project name West Gate -Best Western Hotel 8 Restaurant Contact person Riley Evans Phone number 910-862.5812 Date 7/2i2008 Drainage area number Pond 1 II�DESIGNjINFORMA.TIONA`� ;�„ - Site Characteristics Drainage area 68,073 it Impervious area 47,650 It impervious 70.00 Design rainfall depth 1.5 in Storage Volume: Non -SR Waters Minimum volume required 5,790 it3 Volume provided 6,633 rye Storage Volume: SR Waters 1-yr, 24-hr runoff depth in Pre -development 1-yr, 24-hr runoff ft3 Post -development 1-yr, 24-hr runoff it Minimum volume required it Volume provided ft3 Peak Flow Calculations 1-yr, 24-hr rainfall depth 3.80 in Rational C, pre -development NA-SCS Method (unitless) Rational C, post -development NA-SCS Method (unitless) Rainfall intensity:I -yr, 24-hr storm 0.17 in/hr Pre -development 1-yr, 24-hr peak flow 1.03 ft'/Sec Post -development 1-yr, 24-hr peak flow 1.71 ft3/sec Pre/Post 1-yr, 24-hr peak flow control 0.68 ft'/sec Basin Elevations Basin bottom elevation 0.00 ft Sediment cleanout elevation 1.00 ft Bottom of shelf elevation 10.50 ft Permanent pool elevation 11.00 If SHWT elevation 9.50 ft Top of shelf elevation 11.50 it Temporary pool elevation 12.20 it RECEIVED JUL 1 0 2008 BY: Form SW401-We1 Detention Basin-Rev.4 Pans 1. 811. Design Summary, Page 1 of 2 Permit No. ` !t a _ (to be provided by DWO) Volume and Surface Area Calculations SA/DA ratio 6.00 (unitless) Surface area at the bottom of shelf 2,840.00 fit Volume at the bottom of shelf 1,740.00 ft3 Permanent pool, surface area required 4,085 It Permanent pool, surface area provided 4,130 ft2 OK Permanent pool volume 17,008 It Average depth for SAMA tables 4.12 0 OK Surface area at the lop of shelf 5,640.00 It Volume at the top of shelf 2,440.00 ft3 Forebay volume 3,440 ft3 Forebay % of permanent pool volume 20.23 % OK Temporary pool, surface area provided 6,318 it Drawdown Calculations Treatment volume drawdown time 5 days OK Treatment volume discharge rate 0.02 IN Pre -development 1-yr, 24-hr discharge 1.03 l OK Post -development 1-yr, 24-hr discharge 0.42 h3/s OK Additional Information Diameter of orifice 1 in Design TSS removal 90 % Basin side slopes 3.00 :1 OK Vegetated shelf slope 10.00 :1 OK Vegetated shelf width 10.00 ft OK Length of flowpath to width ratio 3.00 :1 OK Length to width ratio 3.00 :1 OK Trash rack for overflow 8 orifice? Y (Y or N) OK Freeboard provided 1.80 ft OK Vegetated filter provided? N (Y or N) Design must be based on 90%, TSS removal Recorded drainage easement provided? Y (Y or N) OK Captures all runoff at ultimate build -out? Y (Y or N) OK Drain mechanism for maintenance or emergencies Y (Pump) RECEIVED JUL 1 0 2008 By: Form SW4e1-Wet Detention Basin-Rev.4 Parts I. S II. Design Summary, Page 2 of 2 Permit No.'SLO0CY0O5/ / (to be provided by DINO) III. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. BR 1. Plans (1" - 50' or larger) of the entire site showing: C5l �GS - Design at ultimate build -out, Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. �B g 2. Partial plan (1"= 30' or larger) and details for the wet detention basin showing: - Outlet structure with trash rack or similar, - Maintenance access, - Permanent pool dimensions, - Forebay and main pond with hardened emergency spillway, - Basin cross-section, - Vegetation specification for planting shelf, and - Filter strip. 3. Section view of the dry detention basin (1" = 20' or larger) showing: Side slopes, 3:1 or lower, - Pretreatment and treatment areas, and Inlet and outlet structures. �1 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified on the plans prior to use as a wet detention basin. -ZtNf-_�6 CA CS 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay, to verify volume provided. 6. An assurance that the installed system will meet design specifications upon initial operation once the project is complete and the entire drainage area is stabilized. 7. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. ' -A (CS 8. The supporting calculations. Zhnb 6 r�� died 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. 10. A copy of the deed restriction. Form SW401-Wet Detention Basin-Rev.1 Part III. Required Items Checklist, Page 1 of 1 Wet Detention Basin Inspection RECEIVED MAY 1 8 2008 ' BY: -St, Y'RO XOV'q and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one): ❑ does ® does not This system (check one): ❑ does ® does not incorporate a vegetated filter at the outlet. incorporate pretreatment other than a forebay. Important maintenance procedures: — Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). — No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. — Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. — If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. — Once a year, a dam safety expert should inspect the embankment. After the wet detention pond is established, it should be inspected once a month and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of inspection and maintenance should be kept in a known set location and must be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: Flow 1 will remediate theproblem: The entire BMP Trash/clebris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of I long. approximately six inches. �•: BMP element: Potentialproblem: How I will remediate theproblem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the swale sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible. Remove the sediment and storage depth. dispose of it in a location where it will not cause impacts to streams or the BMP. Alga[ growth covers over Consult a professional to remove 50% of the area. and control the algal growth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. 13MP element: Potentialproblem: How I will remediate theproblem: The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult it professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads 10.0 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 77:0 feet in the forebay, the sediment shall be removed. Sediment Removal Bottom BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation 11.0 4.0 Pe maven Poo] ------------ Volum -- e Sediment Removal Elevation 1_0 Volume n3.0 -ft Min. -------------------------------------------- ------ Sediment Bottom Elevation 0.0 1-ft r Storage Sedimei Storage POREBAY MAIN POND -EIVED JUL 10 2008 5w��1c� I acknowledge and agree by my signature below that 1 am responsible for the performance of the maintenance procedures 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:Riley S. Evans Title: Manager Sankey Properties LLC Address: P P.O. Box 847 Clarkton NC 28433 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of County of j/-/k G/AA--- , do hereby certify that aZAY personally appeared before me this 4-29fk clay of , �, and acknowledge the clue execution of the forgon wet detention basin maintenance requirements. Witness my hand and official seal, notary fir, —m Public U� 11111100 SEAL My commission expires -2, 31 r o20i0 I MAY 1 8 2008 Filter Strip, Restored Riparian Buffer and Level' Inspection and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log, in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — Immediately after the filter strip is established, any newly planted vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation — Stable groundcover will be maintained in the drainage area to reduce the sediment load to the vegetation. — Two to three times a year, grass filter strips will be mowed and the clippings harvested to promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as 12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not require this type of maintenance. — Once a year, the soil will be aerated if necessary. — Once a year, soil pH will be tested and lime will be added if necessary. After the filter strip is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of inspection and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: Flow 1 will remediate theproblem: The entire filter strip Trash/debris is present. Remove the trash/debris. system The flow splitter device The flow splitter device is Unclog the conveyance and dispose (if applicable) clogged. of any sediment off -site. The flow splitter device is Make any necessary repairs or damaged. replace if damage is too large for repair. 6MP element: Potentialproblem: How I will remediate theproblem: The swale and the level The swale is clogged with Remove the sediment and dispose lip sediment. of it off -site. The level lip is cracked, Repair or replace lip. settled, undercut, eroded or otherwise damaged. "There is erosion around the Regrade the soil to create a berm end of the level spreader that that is higher than the level lip, and shows stormwater has then plant a ground cover and bypassed it. water until it is established. Provide lime and a one-time fertilizer application. Trees or shrubs have begun Remove them. to grow on the swale or just downslo e of the level lip. The bypass channel Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then reestablish proper erosion control. Turf reinforcement is Study the site to see if a larger damaged or ripap is rolling bypass channel is needed (enlarge if downhill. necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long Maintain grass at a height of if applicable). approximately three to six inches. Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Sediment is building up on Remove the sediment and the filter strip. restabilize the soil with vegetation if necessary. Provide lime and a one- time fertilizer application. Plants are desiccated. Provide additional irrigation and fertilizer as needed. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application. Nuisance vegetation is Remove vegetation by hand if choking out desirable species. possible. If pesticide is used, do not allow it to get into the receiving water. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality local Regional Office, or the outlet. 401 Oversight Unit at 919-733-1786. I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures 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 namc:Riley S. Evans Title: Manager Sankey Properties LLC Address:P.O. Box 847 Clarkton NC 28433 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of �--- , do hereby that ta. ,County of ,.Q/i-1, y certify y tva4l S personally appeared before me this ��'t' day of alwqrtZ 200 , and acknowledge the due execution of the forgoi g wet detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires / — 9/ a0 /U RT7 IT- TVP:D MAY 1 1j 2008 BY: W �U?30s EROSION and SEDIMENT CONTROL NARRATIVE for WEST GATE Best Western Hotel & Restaurant PREPARED FOR Sankey Properties, LLC P.O. Box 847 Clarkton, NC 28433 910-862-5812 CARD( SEAL 20007 f•3t-C David S. Hollis, Hanover Design Services, PA 1123 Floral Parkway Wilmington, NC 28403 EROSION AND SEDIMENT CONTROL PLAN WEST GATE -Best Western Hotel & Restaurant for Sankey Properties, LLC January, 2008 NARRATIVE NOTE: To be reviewed in conjunction with "The Erosion and Sediment Control and Water Quality Plan for WEST GATE -Best Western Hotel & Restaurant', Hanover Design Services, PA, Drawings No. 6309-BW, Sheets 6 through 9. PROJECT DESCRIPTION - The purpose of this project is to construct a sediment basin and installation of required erosion control practices for a future hotel and restaurant site. The Erosion and Sediment Control Plan is to identify measures to be implemented to control erosion during construction of the Sediment Basin/future storm water pond and land grading associated with this development. The site is located at the end of Towne Lake Drive in the West Gate project in Brunswick County. The project contains 3.2 acres of proposed disturbed area. The developable site is gently rolling and wooded. It is bordered on the west by Jackeys Creek and to the east by the West Gate commercial site. SOILS - The soils in the project consist of Onslow and Baymeade complexes; See the "Soils Table" For "K" factors and hydrologic classifications. The primary means of storm water transport in all areas around the site, all proposed site improvements, and impervious areas will be a sheet flows and temporary diversions directed to the ponds. (Soils Map attached) SOILS TABLE -Rest Western Hotel & Restaurant Value WDefinition "K" Factor Ilydrology Group 13ab Baymeade I 10 I 1 13DC Baymeade and Marvyn 10-.32 A/B On Onslow 17-.24 13 Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 BM .ram. V\ 10 Z v o� � 2= WINNABOW QUADRANGLE SCALE I"z2,G900 NORTH CAROLINA—BRUNSWICK CO. 7.5 MINUTE SERIES (TOPOGRAPHIC) ' Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 REPORT' OF SUBSURFACE EXPLORATION AND GEOTECHNICAL ENGINEERING ANALYSIS WEST GATE BEST WESTERN HOTEL LELAND, NORTI1 CAROLINA ��•��lt�� °ryt" .4j�,°' may- rwt�, .# --s:.. ,-„r,._.�g PREPARED FOR: MR. MICHAEL R. MCLEOD MICHAEL R. MCLEOD, ARCHITECT, PA 13A HAMPSTEAD VILLAGE HAMPSTEAD, NORTH CAROLINA 28443 ECS CAROLINAS, LLP PROJECTNO.: 22.13567 NO VEM 3ER 27, 2007 RECEIVED MAY 1 S 7008 BY'�i,s86$os ly ' »F'MP ECS CAR_O_UNAS, LLP �c�aR®do�sia� Gcotechnical •Construction Materials •Environmental •Facilities November 27, 2007 Mr. Michael R. McLeod Michael R. McLeod, Architect, PA 13A Hampstead Village Hampstead, North Carolina 28443 Re: Repots. of Subsurface Exploration and Geotechnical Engineering Evaluation West Gate Best Western Hotel Leland, North Carolina ECS Project No.: 22.13567 Dear Mr. McLeod: As authorized by your acceptance of our proposal number 10741, dated November 5, 2007, ECS Carolinas, LLP has completed a subsurface exploration for the subject project. This report presents the results of the field exploration; laboratory testing and engineering analysis, along with our recommendations for design of geotechnical related items. We appreciate the opportunity to be of service to you during the design phase of this project and look forward to our continued involvement during the construction phase. If you have any questions concerning the information and reconunendat ions presented in this report, please contact us at (910) 686-9114 for further assistance. Respectfully submitted, ECS CAROLINAS, LLP Winslow E. Goins, E.I. Project Manager Walid M. Sobh, P.E. Principal Engineer North Carolina License No. 22983 17211 Ogden Business Park • Suite 201 Y Wilmington, NC 28411 ° (910) 686-91 14 41^ax (910) 686-9666 * www.ecslimited.com Asheville, NC Charlotte, NC - Greensboro, NC - Greenville, SC - Raleigh, NC - Swansboro, NC * Wilmington, NC * testing services only REPORT' OF SUBSURFACE EXPLORATION AND GEOTECHNICAL ENGINEERING ANALYSIS WEST GATE BEST WESTERN HOTEL LELAND, NORTH CAROLINA PREPARED FOR: MR. MICHAEL R. MCLEOD MICHAEL R. MCLEOD, ARCHITECT, PA 13A HAMPSTEAD VILLAGE HAMPSTEAD, NORTH CAROLINA 28443 PREPARED BY: ECS CAROLINAS, LLP 7211 OGDEN BUSINESS PARK SUITE 201 WILMINGTON , NORTH CAROLINA 28411 ECS CAROLINAS, LLP PROJECT NO.: 22.13567 "— SEAL `a = 22983 = �I 7�7 .F r I 07 SC) NC LICEr1VSE 1V0.22983 NOVEMBER 27, 2007 TRACT 1 ,.m .Fm UfNOIF] Iryrp#y,,,h IOL�iICN Li OlFgI1r6 ®O[lYIfFSrlllp#1UR LCGTIW p VF IW➢J6 wm,.wf.s win MF�SIFF4ENt5 -n.ol ACkSta I'AA If I!9: i,i Fre,y; s u, RUSE AI.IRAN I ur QL uL PRui,C!ril KFIT NT'. 1`+ I of IF) i I y NOT TO SCALE REFERENCE SITE MAP PROVIDED BY g MICHAEL R. MCLEOD AIA, „f a` 5 W \ �Yp 41 S°pt s FIGURE' l - u, N SITE• MAP # WEST GATE BEST :WESTERN HOTEL, BRUNSWICKCOUNTY ``-jv LELAND, NORTH CAROLINA PROJECT N0.22=13567,<;,_i''; DRAWN BY/DATE CHECKEDBYlllATE, IFILENAME: SITEMAP Operator Donald B Coogan Cone Number DSA1030 Location Leland,North Carolina Job Number 22-13567 Date and Time 11/1412007 3:48:25 PM Hole Number ) 5-27 J E�- Water Table rB:20:ffJ GPS Location 3412.5315N, 07801.6930W County Brunswick ��®<L06dda9 = CPT DATA o J_ REMARKS Tip Resistance 0 Ot TSF 300 Local Friction 0 Fs TSF 2 Pore -2 Pressure Pw PSI 4 SPT W 0 60 % Hammer 60 O W } to M ~ 0 , \ 2 �t I — I-- -t t I— tl I I 1I11%1 11 4 1LLL 1�-LLLIII —\ 10 I 1 � I I I I �� 1 111 11 6 ��t t I t� IT���� 8 I L f t--{ {.{ IR - 1�� R1 t .. I I l i � � I I 12 I I I I I I I I I I IIIIIII IIIII 1 - sensitive fine grained 7 4 - silty clay to clay A 7 - silty sand to sandy silt E310 - gravelly sand to sand ,? 2 - organic material G 5 - clayey silt to silty clay ^ 8 - sand to silty sand 0 11 - very stiff fine grained (') ®3 - clay m 6 - sandy silt to clayey silt 4 9 - sand 0 12 - sand to clayey sand (') 0 xlpueddy i o r West Gate Best Western Hotel Operator Ron Stewart Cone Number DSA0866 Location Leland, North Carolina ":_Sol1 Job Number 22-13567 0 Water Table �6:36$_l Date and Time 11/1412007 7:39:16 AM Hole Number 1 GPS Location 3412.5725N, 07801.7174W County - Brunswick �®fl.OV21.� CPT DATA F�o% a W REMARKS Tip Resistance Local Friction Pore Pressure SPT N' O w }0 tom ~,2 Qt TSF 180 0 Fs TSF 2 0 Pw PSI 11 0 60% Hammer 35 , T 2 4 111 LI L �I �I T I �T`,_t 6 I I� I�t I� ——1—Ifilfilfiltl I NrI kt I I 6 G I TI I I it LI I� a IIII � 'IIIIIIII I I ��. I I I I I I I I ll I I I I IIIIII I 11 1 TTT,I i l l IIIII I I I I I I I I I IIIIIIIIII I I I I I I (IIIIIIIIII I 12 IIIIIIII I IIIIIIIIII IIIIII Ilillllllli -1 - sensitive fine grained m 4 - silty clay to clay la 7 - silty sand to sandy silt ®10 - gravelly sand to sand G^, 2 - organic material G 5 - clayey silt to silty clay 7 8 - sand to silty sand D 11 - very stiff fine grained (') e 3 - clay M 6 - sandy silt to clayey silt z 9 - sand N 12 - sand to clayey sand (*) ' RFCETVT�D U.S. ARMY CORPS OF ENGINEERS MAY 1 8 2008 WILMINGTON DISTRICT 5 r�8c�8�si Action ID. SAW-2008-386 County: Brunswick USGS Quad: Winnabow BY'�— GENERAL PERAIIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner / Authorized Agent: Sankey Properties, LLC Address: c/o Rilev Evans PO Box 847 Clarkton, NC 28433 Telephone No.: (910)540-2690 t. yi�D Size and location of property (water body, road name/number, town, etc.): The 3.57 acre tract is located off 17 south on Westgate Drive at the Westgate Shopping Plaza, Leland, Brunswick County, North Carolina. Parcel 4s 0470002406 S O470002408. Location: 34.2090°N, 78.0293°W. The nroiect will result in a Best Western Hotel and fROP restaurant. Description of projects area and activity: The proposal includes the placement of fill material into Section 404 waters to facilitate the construction of a hotel and restaurant. There will be two temporary and two permanent impacts to riparian wetlands abutting Jackey's Creek as illustrated on the attached plans. Impact areas 1 and 2 are temporary for construction of the retaining wall :rid are authorized for 0.02 and 0.02 acres respectively (NWP 33). Impact areas A and B are permanent and are authorized for 0.07.and 0.01 acres respectively (NWP 18). Applicable Law: ❑X Section 404 (Clean Water Act, 33 USC 1344) ❑ Section 10 (Rivers and Harbors Act, 33 USC 403) Authorization: Regional General Permit Number: _ Nationwide Permit Number: 18 and 33 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a slop work order, a restoration order and/or appropriate legal action. This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless discretionary authority has been exercised on a case -by -case basis to modify, suspend or revoke the authorization. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You should contact the NC Division of Water Quality (telephone (919) 733-1786) to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (LAMA), prior to beginning work you must contact the N.C. Division of Coastal agcment in Wilmington, NC, at (910) 395-3900. This Department of the Army verification does not relieve [he Zflc?�/odifions ce of the responsibility to obtain any other required Federal, State or local approvals/permits. If there are any questions regar of ran ny f of the Permit, or the Corps of Engineers regulatory program, please contact Mmber ary at ( 0 51, 48 or.garvey@usace.army.mil. Corps Regulatory Expiration Date April 2, 2008 The Wilritington District is coma ti fled to providing the highesTic-Vel of support to the public. To help us ensure we continue to do so, please complete the attached customer Satisfaction Survey or visit httn://www.saw.usace.army.niiUWETLANDS/index.btrnl to complete the survey online. Determination of Jurisdiction: ❑ Based on preliminary information, there appear to be waters of the US including wetlands within the above described project area. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process ( Reference 33 CFR Part 331). ❑ There are Navigable Waters of the United States within the above described project area subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. ❑ There are waters of the US and/or wetlands within the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. © The jurisdictional areas within the above described project area have been identified under a previous action. Please reference jurisdictional determination issued 2/16/08. Action 1D SAW-2008-386 SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORMS, PROTECT PLANS, ETC., MUST BE ATTACHED TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAILABLE. Copy Furnished: Chad Coburn, DENR-DWQ, Wilmington Regional Office, 127 Cardinal Drive Ext., Wilmington, NC 28405 Dana Lutheran, SEGI, Inc., 5315 South College Road, Suite E, Wilmington, NC 28412 ACTION ID # SAW-2008-386 SPECIAL CONDITIONS: 1. In order to compensate for impacts to 0.08 acres of riparian wetlands, the pernvttee shall make payment to the North Carolina Ecosystem Enhancement Program (NC EEP) in the amount determined by the NC EEP, sufficient to perform the restoration of 0.16 acres of riparian wetlands in the Cape Fear River Basin, Cataloging Unit 03030007. Construction within jurisdictional areas on the property shall begin only after the permittee has made Rill payment to the NC EEP and provided a copy of the payment documentation to the Corps, and the NC EEP has provided written confirmation to the Corps that it agrees to accept responsibility for the mitigation work required, in compliance with the MOU between the North Carolina Department of Enviromnent and Natural Resources and the United States Army Corps of Engineers, Wilmington District, dated November 4, 1998 2. The pennittee shall submit to the U.S. Army Corps of Engineers, Wihnington District an as -built survey of the authorized temporary impact areas. This survey must be submitted within 45 days of construction completion of the subject relocation. Corps Regulatory Officia I / Date: t� r. Action H) Number: SAW-2008-386 County: Brunswick Permittee: Sankey Properties LLC (c/o Riley Evans) Date Permit Issued: April 2.2008 Project Manager: Kimberly Garvey Upon completion of the activity authorized by this permit and any mitigation required by the permit, sign this certification and return it to the following address: US ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT WILNIINGTON REGULATORY FIELD OFFICE POST OFFICE BOX 1890 WTLMINGTON, NORTH CAROLINA 28402-1890 Please note that your permitted activity is subject to a compliance inspection by a U. S. Army Corps of Engineers representative. If you fail to comply with this permit you are subject to permit suspension, modification, or revocation. I hereby certify that the work authorized by the above referenced permit has been completed in accordance with the terms and condition of the said permit, and required mitigation was completed in accordance with the permit conditions. Signature of Permittee Date r topozone fid". cngt l 1.%2V 1AIP3a b mot. tcl i iE Gregory G NE— -- L �1 1 0 0,1 0.2 0.3 0.4 0.5 km 0 0.09 0.18 0.27 0.36 0.45 mi 34.20900N,78.0293°W (NAD27) Elevation 8.0 ft / 2.4 m (USGS NED) USGS Winnabow (NC) Quadrangle Projection is UTM Zone 17 NAD83 Datum i1 I� ^' G M=-8.9 G=1.632 Mr. Riley Evans Sankey Properties, LLC P.O. Box 8,17 Clarkton, NC 28,133 March 5, 2008 Project: West Gate Best Western 41aach inen f 16 ( ac(d u-Id u n _) Expiration of Acceptance: September 5, 2008 County: Brunswick The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NCEEP) is willing to accept payment for impacts associated with the above referenced project. Please note that this decision does not assure that the payment will be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact these agencies to determine if payment to the NCEEP will be approved. This acceptance is valid for six months from the date of this letter and is not transferable. If we have not received a copy of the issued 404 Permil/401 Certificnlion/CAMA permit within this time frame, this acceptance will expire. It is the applicant's responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permits) an invoice will be issued based on the required mitigation in that permit and payment must be made prior to conducting the authorized work. The amount of the In Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and policies listed at www.nceep.net. Based on the information supplied by you the impacts that may require compensatory mitigation are summarized in the followiu¢ table. Cape Fear 03030005 Stream (feel) Wetlands (acres) Buffer I (Sq. Ft.) Buffer II (Sq. Ft.) Cold Cool Warm Riparian Non-Ri arian Coastal Marsh pa Imcts 0 0 0 0.08 0 0 0 0 Credits 0 0 0 0.16 0 1 0 0 0 Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. If the regulatory agencies require mitigation credits greater than indicated above, and the applicant wants NCEEP to be responsible for the additional mitigation, the applicant will need to submit a mitigation request to NCEEP for approval prior to permit issuance. The mitigation will be performed in accordance with the Memorandum of Understanding between the N. C. Department of Environment and Natural Resources and the U. S. Army Corps of Engineers dated November 4, 1998. If you have nay questions or need additional information, please contact Kelly Williams at (919) 716-1921. Sincerely, Willia more, PE Director cc: Cyndi Karoly, NCDWQ Wetlands/401 Unit Kim Garvey, USACE-Wilmington Chad Coburn, NCDWQ-Wilmington Dana Lutheran, agent File Rpsr`orut9... E�r�... Prot�cti,�t� Our ka& North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699.1652 / 919-715-0476 / www.nceep.net U.S. ARMY CORPS OF, .ENGWEERS WILMINGTON DISTRICT Action Id. SAW-2008-386 County: Brunswick U.S.G.S. Quads: Winnabow NOTIFICATION OF JURISDICTIONAL DETERMINATION Property Owner/Agent: Address: Telephone No.: Property description Sankey Properties, LLC c/o Riley Evans PO Box 847 Clarldon, NC 28433 (910)270-9778 ECKDVE U^uS yfr Size (acres) 3.58 Nearest Town Leleand Nearest Waterway dickey's Creels River Basin Cane Fear USGS tfUC 03030007 Coordinates N 34.2090 W 78.0293 Location description The subject iurisdiclional determination is for Lots 2 and 13 in lire WestiWe Plaza, Parcel numbers 0470602406 and 0470002408 located off 17 south on West ate Drive in Leland Brunswick County, North Carolina (see attached map). Indicate Which of the Following Apply: A. Preliminary Determination Based on preliminary information, there may be wetlands on the above described property. We strongly suggest you have this property inspected to determine lire extent of Department of the Army (DA) jurisdiction. To be considered final, a jurisdictional determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process ( Reference 33 CPR Part 331). B. Approved Determination X There are Navigable Waters of the United States within the above described property subject to die permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. X There are wetlands on the above described property subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be ' relied upon for a period not to exceed five years from the date of this notification. We strongly suggest you have the wetlands on your property delineated. Due to the size of your property and/or our present workload, the Corps may not be able to accomplish this wetland delineation in a timely manner. For a more timelyi delineation, you may wish to obtain a consultant. To be considered final, any delineation must be verified by the Corps. The wetland on your property have been delineated and the delineation has been verified by the Corps. We strongly suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. Once verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years. X The wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Corps Regulatory Official identified below on 16 February 2008. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed rive years from the date of this notification. There are no waters of the U.S., to include wetlands, present on the above described property which are subject to the permit requirements of Section 404 of Ore Clean Water Act (33 USC 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed rive years from the date of this notification. Page 1 of 2 I MAY 1 8 Z008 Ac7ion ID: SAW-2008-386 t The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (LAMA). You should contact the Division of Coastal Management in Wilmington, NC, at (910) 395-3900 to determine._,_,-,._____-. their requirements. Placement of dredged or Fill material within waters of the US and/or wetlands without a Department of the Army permit may i constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). If you have any questions regarding this determination and/or the Corps regulatory program, please contact Ms. Kimberly Garvey at (910) 251-4482. C. Basis For Determination Waterway. This determination is based an information submitted by SEGI, Inc. D. Remarks E. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B.above) This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this determination, you mny request an administrative appeal under Corps regulations at 33 CFR part 331. Enclosed you will find a' Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this `. determination you must submit a completed RFA form to the following address: District Engineer, W ilnungton Regulatory Division Attn: Ms. Kimberly Garvey, Project Manager Wilmington Regulatory Field Office PO Box 1890 Wilmington, North Carolina 28402-1890 In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the District Office within 60 days of the date of the NAP. Should you decide to submit an RFA form, it must be received at the above address by 16 Anril 2008. •'It is not necessary to submit an form�(o t� correspondence." Corps Regulatory Date 16 February 2008 do not object to the determination in this 16 February 2013 The Wilmington District is comr4itted to providing the highest level of support to the public. do so, please complete the attache eustomer Satisfaction Survey or visit httn•/hvww saw us,ee nrmy ntil/WETLANDS/index.litnil to complete the survey online. Copy famished: Dana Lutheran, SEGI, Inc., 5315 College Road, Suite E, Wilmington, NC 28412 Chad Coburn, NCDENR-DWQ, 127 Cardinal Drive, Wilmington, NC 28405 To help us ensure we continue to Page 2 of 2 i LOCA 77ON MAP WEST GATE !; TRACT 1.2 & 13 a — ww [rrtu r wws.[. cawrr xerry wnn. ro�w�>mW -- � '•, t q _ e" O[i6n[C lr: Mau ]liln[9HS LLC 'g' <u++r \� � ..�•. u' /' ___-- •eJ/,C/✓''✓ JS"°�,•' D.\ TRACTT1 •#s TRACT2' 31 RETENTION POND TRACT _\��t'r` 4.0 ���,,/�/ r �••�'u`'i'., x is i .u. <awrto n <mm..+R .rmm � wa r u.... •� �./ ••• �� ;.„ r..r x[[Y<�r.�•c .�r �i _ LHANOVER DESIGN SEA Mx.xo n.c .<Yr.<.o..-319li1-tY�8�38h ... .�w w-...� i U.S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action ID. SAW-2008-386 County: Brunswick USGS Quad: Winnabow GENERAL PER TIT (REGIONAL AND NATIONNVII)E) VERIFICATION Property Owner / Authorized Agent: Sankey Properties, LLC Address: c/o RileyEvans PO Box 847 Clarkton. NC 28433 Telephone No.: (910) 540-2090 Size and location of property (water body, road name/number, town, etc.): The 3.57 acre tract is located off 17 south on Westgate Drive at the Westgate Shopping Plaza, Leland, Brunswick County, North Carolina. Parcel #s 0470002406 & 0470002408. Location: 34.2090°N. 78.0293°W. The project will result in it Best Western ITotel and THOP restaurant. Description of projects area and activity: The proposal includes the placement of fill material into Section 404 waters to facilitate the construction of a hotel and restaurant. There will be two temporary and two permanent impacts to riparian wetlands ributting Jockey's Creek as illustrated on the attached plans. Impact areas 1 and 2 are temporary for construction of the retaining wall and are authorized for 0.02 and 0.02 acres respectively (NWP 33). Impact areas A and 11 are permanent and are authorized for 0.07.and 0.01 acres respectively (NWP 18). Applicable Law: X❑ Section 404 (Clean Water Act, 33 USC 1344) ❑ Section 10 (Rivers and Harbors Act, 33 USC 403) Authorization: Regional General Permit Number: Nationwide Permit Number: 18 and 33 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order and/or appropriate legal action. This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended or revoked. If, prior to the expiration date identified below, Ore nationwide permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commented (i.e., are under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless discretionary authority has been exercised on a case -by -case basis to modify, suspend or revoke the authorization. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You should contact the NC Division of Water Quality (telephone (919) 733-1786) to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior to beginning work you must contact the N.C. Division of Coastal agemI at in Wilmington, NC, at (910) 395-3900. This Department of the Army verification does not relieve the p ni ec of the responsibility to obtain any other required Federal, State or local approvals/permits. If there are any questions regar : rif ion ) f co ditions of the Permit, or the Corps of Engineers regulatory program please contact IGmber ary at ( 0 51 48 or erly.l.garveyQusace.army.m 1. Corps Regulatory Expiration Date of April 2, 2008 The Wilmington District is conml tied to providing the bigh0�el of support to die public, To help us ensure we continue to do so, please complete Ore attached customer Satisfaction Survey or visit bMp /iwNvw.sow.usace.amhy.mil/WETLANDS/index.html to complete the survey online. Determination of Jurisdiction: ❑ Based on preliminary information, there appear to be waters of the US including wetlands within the above described project area. This preliminary determination is not an appealable action tinder the Regulatory Program Administrative Appeal Process ( Reference 33 CFR Part 331). ❑ There are Navigable Waters of the United States within the above described project area subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period tint to exceed five years from the date of this notification. ❑ There are waters of the US and/or wetlands within the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. © The jurisdictional areas within the above described project area have been identified wider a previous action. Please reference jurisdictional determination issued 2/16/08. Action ID SAW-2008-386 Basis of Jurisdictional Corps Regulatory 0 Date April 2, 2008 SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORMS, PROTECT PLANS, ETC., MUST BE ATTACHED TO THE FILE COPY OF TIIIS FORM, IF REQUMED OR AVAILABLE. Copy Fumished: Chad Cobum, DENR-DWQ, Wilmington Regional Office, 127 Cardinal Drive Ext., Wilmington, NC 28405 Dana Lutheran, SEGI, Inc., 5315 South College Road, Suite E, Wilmington, NC 28412 ACTION ID # SAW-2008-386 SPECLAL CONDITIONS: 1. In order to compensate for impacts to 0.08 acres of riparian wetlands, the pennittee shall make payment to the North Carolina Ecosystem Enhancement Program (NC EEP) in the amount determined by the NC EEP, sufficient to perform the restoration of 0.16 acres of riparian wetlands in the Cape Fear River Baser, Cataloging Unit 03030007. Construction witivn jurisdictional areas on the property shall begin only after the permittee has made frill payment to the NC EEP and provided a copy of the payment docrnnentation to the Corps, and the NC EEP has provided written confirmation to the Corps that it agrees to accept responsibility for the mitigation work required, in compliance with the MOU between the North Carolina Department of Environment and Natural Resources and the United States Army Corps of Engineers, Wilmington District, dated November 4, 1998 2. The pennittee shall submit to the U.S. Anuy Corps of Engineers, Wilmington District an as -built survey of the authorized temporary impact areas. This survey must be submitted within 45 days of construction completion of the subject relocation. Corps ReguLatory Official Date: �� iT EWA _r NCUNK MAY i b 2008 sY: St>J R ohs>y North Carolina Department of Environment and Natural Resources Division of Land Resources James D. Simons, PG, PE Land Quality Section Michael F. Easley, Governor Director and State Geologist William G. Ross Jr., Secretary 2/22/2008 LETTER OF APPROVAL WITH MODIFICATIONS AND PERFORMANCE RESERVATIONS Sankey Properties, LLC Riley Evans, Manager PO Box 847 Clarlcton, NC 28433 RE: Project Name: Westgate- Best Western Hotel & Restaurant Project ID: Bruns-2008-284 County/Town/Street: Brunswick, Leland, Towne Lake Drive River Basin: Cape Fear Submitted By: Hanover Design Services Date Received by LQS: February 2, 2008 Plan Type: NEW Dear Mr. Evans: This office has reviewed the subject erosion and sedimentation control plan and hereby issues this Letter of Approval with Modifications and Performance Reservations. A list of the modifications and reservations is attached. This plan approval shall expire three (3) years following the date of approval, if no land -disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129. Should the plan not perform adequately, a revised plan will be required (G.S. 113A-54.1)(b). Please be advised that Title 15A NCAC 413.0118(a) requires that a copy of the approved erosion control plan be on file at the job site. Also, you should consider this letter to give the Notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure compliance with the approved plan. North Carolina's Sedimentation Pollution Control Program is performance -oriented, requiring protection of existing natural resources and adjoining properties. If, following the commencement of this project, it is determined that the erosion and sedimentation control plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statute 113A-51 thru 66), this office may require revisions to the plan and implementation of the revisions to insure compliance with the Act. Wilmington Regional Office 127 Cardinal Drive 6d., Wilmington, North Carolina 28405-3845 • Phone: 910-796-7215 / FAX: 910-350-2004 Letter of Approval with Modifications and Performance Reservations Riley Evans February 22, 2008 Page 2 of 4 Acceptance and approval of this plan is conditioned upon your compliance with Federal and State water quality laws, regulations, and rules. In addition, local city or county ordinances or rules may also apply to this land -disturbing activity. This approval does not supersede any other permit or approval. Please be aware that your project will be covered by the enclosed NPDES General Stormwater Permit NCGO1000 (Construction Activities). You should first become familiar with all of the requirements for compliance with the enclosed general permit. Please note that this approval is based in part on the accuracy of the information provided in the Financial Responsibility Form, which you have provided. You are requested to file an amended form if there is any change in the information included on the form. In addition, it would be helpful if you notify this office of the proposed starting date for this project. Please notify us if you plan to have a preconstruction conference. Your cooperation is appreciated. Sincerely, Carol N. Miller Assistant Regional Engineer Land Quality Section Enclosures: . Certificate of Approval Modifications and Performance Reservations NPDES Permit cc: David Brown, Hanover Design Services LQS-WiRO Letter of Approval with Modifications and Performance Reservations Riley Evans Febntary 22, 2008 Page 3 of 4 MODIFICATIONS AND PERFORMANCE RESERVATIONS Project Name: Westeate- Best Western Hotel & Restaurant Project ID: Bruns-2008-284 County: Brunswick 1. This plan approval shall expire three (3) years following the date of approval, if no land disturbing activity has been undertaken, as is required by Title 15A NCAC 413.0029. 2. The developer is responsible for the control of sediment on -site. If the approved erosion and sedimentation control measures prove insufficient, the developer must take those additional steps necessary to stop sediment from leaving this site. Each sediment storage device must be inspected after each storm event. Maintenance and/or clean out is necessary anytime the device is at 50% capacity. 3. Any and all existing ditches on this project site are assumed to be left undisturbed by the proposed development unless otherwise noted. The removal of vegetation within any existing ditch or channel is prohibited unless the ditch or channel is to be regarded with side slopes of 2 horizontal to I vertical or less steep. Bank slopes may be mowed, but stripping of vegetation is considered new earth work and is subject to the same erosion control requirements as new ditches. 4. The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project prior to the commencement of this land disturbing activity. This could include agencies such as the Division of Water Quality's stormwater regulations, their enforcement requirements within Section 401 of the Clean Water Act, the U.S. Army Corps of Engineers' jurisdiction of Section 404 of the Clean Water Act, the Division of Coastal Management's CAMA requirements, the Division of Solid Waste Management's landfill regulations, the Environmental Protection Agency and/or The U.S. Army Corps of Engineers jurisdiction of the Clean Water Act, local County or Municipalities' ordinances, or others that may be required. This approval cannot supersede any other permit or approval; however, in the case of a Cease and Desist Order from the Corps of Engineers, that Order would only apply to wetland areas. All highland would still have to be in compliance with the N.C. Sedimentation Pollution Control Act. 5. If any area on site falls within the jurisdiction of Section 401 or 404 of the Clean Water Act, the developer is responsible for compliance with the requirements of the Division of Water Quality, the Corps of Engineers and the Environmental Protection Agency (EPA) respectively. Any erosion control measures that fall within jurisdictional wetland areas must be approved by the aforementioned agencies prior to installation. The Land Quality Section must be notified of a relocation of the measures in question to the transition point between the wetlands and the uplands to assure that the migration of sediment will not occur. If that relocation presents a problem or contradicts any requirements of either DWQ, the Corps, or the EPA, it is the responsibility of the developer to inform the Land Quality Section regional office so that an Letter of Approval with Modifications and Performance Reservations Riley Evans February 22, 2008 Page 4 of 4 adequate contingency plan can be made to assure sufficient erosion control remains on site. Failure to do so will be considered a violation of this approval. 6. Any borrow material brought onto this site must be from a legally operated mine or other approved source. A single use borrow site or an area to waste material is only permissible if it is operated under the total control of the Financially Responsible person or firm who is developing this site and has been separately permitted and incorporated as part of this plan meeting all the requirements of NC General Statue 7449(7)f 7. This permit allows for a land disturbance, as called for on the application plan, not to exceed 3.22 acres. Exceeding that acreage will be a violation of this permit and would require a revised plan and additional application fee. Any addition in impervious surface, over that already noted on the approved plan, would also require a revised plan to verify the appropriateness of the erosion control measures and stormwater retention measures. 8. The construction detail for the proposed silt fence requires reinforcing wire and steel posts a maximum of 8.0 feet apart. Omission of the reinforcing wire is a construction change that necessitates more posts for support, i.e., the spacing distance needs to be reduced to no greater than 6 feet apart. 9. Because the stormwater retention ponds are shown on the plan as the primary sediment control device on this project, it is necessary that the ponds and their collection systems be installed before any other grading takes place on site. If that proves to be impractical, a revised plan must be submitted that addresses erosion and sediment control needs during the interim period until the ponds are fully functioning. 10. A graveled construction entrance must be located at each point of access and egress available to construction vehicles during the grading and construction phases of this project. Access and egress from the project site at a point without a graveled entrance will be considered a violation of this approval. Routine maintenance of the entrances is critical. 11. The North Carolina Sedimentation Pollution Control Act mandates a shortened time frame in which to re-establish vegetative groundcover. Slopes (including cuts, fills, and ditch banks) left exposed will, within 21 calendar days after completion of any phase of grading, be planted or otherwise provided with groundcover sufficient to permanently restrain erosion. PLANNED EROSION AND SEDIMENT CONTROL PRACTICES - 1. TEMPORARY GRAVEL CONSTRUCTION ENTRANCES Practice 6.06 Shall be installed as shown on the plan or from any existing paved roadway. Drainage is away from the road and sedimentation will be controlled with downstream practices. During wet weather it may be necessary to wash truck tires at this location. 2. LAND GRADING Practice 6.02 Grading should be limited to areas as shown on the plans. Cut and fill slopes shall be 3:1 or flatter except where specifically indicated. 3. SEDIMENT FENCE Practice 6.62 Sediment fencing should be installed as shown on the Plan, and around any temporary stockpile areas as necessary to prevent any graded interior areas from eroding onto adjacent areas. 4. SEDIMENT BASIN Practice 6.61 The Sediment Basin, level spreader and diversion ditch system are to be constructed prior to major grading operations (see Construction Schedule) and are the primary Practices to prevent sediment from leaving the site. Temporary dewatering structure (see plans) to be maintained during sedimentation function until entire watershed is permanently stabilized and pond is converted to golf course amenity pond function. 5. TEMPORARY DIVERSION DITCH / BERM Practice 6.20 Diversion channel is to be installed as shown on the Plan to receive runoff from disturbed areas and divert it to the Sediment Basin as shown. Hanover Design Services 1123 Floral Pkwy. Wilmington, INC 28403 CONSTRUCTION SCHEDULE - Indicated on Plan 1. Obtain approval of Plan and any necessary permits, and hold a pre -construction conference prior to commencing any work. 2. Flag work limits and stake -out roadways, primary measures, and Sediment Basin for preliminary clearing and grubbing. Install silt fencing entirely along the US Army Corps delineated wetlands line at Jackeys Creek between pond embankment and wetlands before proceeding with pond grading. 3. Install Gravel Construction Entrances. 4. Install Sediment Basin as shown on Plan while clearing and grubbing site. Sediment Basin to be constructed prior to major grading, or building. New diversion ditches to be directed to Basin until storm sewer system is constructed; ditches are to remain open and discharging to Basin during storm sewer construction. 5. Construct any other sediment control Practices shown, prior to rough grading site, stockpiling topsoil as necessary. Construct retaining walls and install inlet protection. 6. Install utilities in roadways, establish final grades and stabilize roadways with stone base course. 7. Final grade building site areas where required, fill existing ditches as needed, and vegetatively stabilize areas where building construction is not imminent. Install non -municipal utilities. 8. All erosion and sediment control Practices are to be inspected weekly and after any rainfall, and repaired as necessary. 9. Upon completion of grading, all areas permanently vegetatively stabilized. After site stabilization, temporary measures are to be removed and the Sediment Basins cleaned to original design contours, if necessary, and riser structures orifices opened, so as to function as a stormwater management / water quality retention pond. 10. Additional erosion control measures may be required as necessary. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 MAINTENANCE PLAN - Indicated on Plan 1. All measures to be inspected weekly and after any rainfall event and needed repairs made immediately. 2. Sediment Basin to be cleaned out when the level of sediment has accumulated to depth greater than the original design sediment storage depth. Riser structure to be cleaned if excess water above design surface no longer drains properly. 3. Sediment to be removed from behind the Silt Fence when it becomes 0.5 deep. Fencing and inlet protection to be repaired as needed to maintain a barrier. 4. All seeded areas shall be fertilized, mulched, and re -seeded as necessary, according to specifications provided, to maintain a suitable vegetative cover. 5. Construction entrances are to be maintained in a condition to prevent mud or sediment from leaving the construction site. Periodic top dressing with 2" stone may be required. Remove all objectionable material spilled, washed, or tracked onto public roadways immediately. 6. Inspect diversion ditches for damage after every rainfall event and repair as necessary to maintain design height and cross section and ensure site drainage is diverted to sediment basin, until storm sewer system is completed. VEGETATIVE PLAN - Permanent vegetation to be established in accordance with "North Carolina Erosion and Sediment Control Planning and Design Manual", Section 6.11, latest version. See Plan for specifications. CONSTRUCTION SCHEDULE SUMMARY: STEP-1 Installation of the additional Construction Entrances, Sediment Fence, Sediment Basins and Temporary Diversions along with grading and stabilization of level spreaders. STEP-2 Complete construction of retaining walls and storm sewer system. Remove Temporary Diversion ditches. Complete remaining site grading and vegetatively stabilize areas where building construction is not imminent. Install non -municipal utilities. See Construction Schedule on Sheet 9 for additional information. (Once Step 1 measures are completed and stabilized Contractor may proceed to Step 2.) Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Temporary Gravel Construction Entrance/Exit Specification # 6.06 Construction Specifications Clear the entrance and exit area of all vegetation, roots and other objectionable material and properly grade it. 2. Place the gravel to the specific grade and dimensions shown on the plans and smooth it. 3. Provide drainage to carry water to a sediment trap or other suitable outlet. 4 Use geotextile fabrics because they improve stability of the foundation in locations subject to seepage or high water table. Maintenance Maintain the gravel pad in a condition to prevent mud or sediment from leaving the construction site. This may require periodic topdressing with 2-inch stone. After each rainfall, inspect any stricture used to trap sediment and clean it out as necessary. Immediately remove all objectionable materials spilled, washed, or tracked onto public roadways. Hanover Design Services 1123 Floral Pkwy. Wilminolon, NC 28403 Land Grading Specification N 6.02 Construction Specifications 1. Construct and maintain all erosion and sedimentation control practices and measures in accordance with the approved sedimentation control plan and construction schedule. 2. Remove good topsoil from areas to be graded and filled, and preserve it for use in finishing the grading of all critical areas. 3. Scarify areas to be topsoiled to a minimum depth of 2 inches before placing topsoil (Practice 6.04, Topsoiling). 4. Clear and grub areas to be filled to remove trees, vegetation, roots, or other objectionable material that would affect the planned stability of the fill. 5. Ensure that fill material is free of brush, rubbish, rocks, logs, stumps, building debris, and other materials inappropriate for constructing stable fills. 6. Place all fill in layers not to exceed 9 inches in thickness, and compact the layers as required to reduce erosion, slippage, settlement, or other related problems. 7. Do not incorporate frozen material or soft, mucky, or highly compressible materials into fill slopes. 8. Do not place fill on a frozen foundation. due to possible subsidence and slippage. 9. Keep diversions and other water conveyance measures free of sediment during all phases of development. 10. Handle seeps or springs encountered during construction in accordance with approved methods (Practice 6.81, Subsurface Drain). 11. Permanently stabilize all graded areas immediately after final grading is completed on each area in the grading plan. Apply temporary stabilization measures on all graded areas when work is to be interrupted or delayed for 30 working days or longer. 12. Show topsoil stockpiles, borrow areas, and spoil areas on the plans, and make sure they are adequately protected from erosion. include final stabilization of these areas in the plan. Maintenance Periodically check all graded areas and the supporting erosion and sedimentation control practices, especially after heavy rainfalls. Promptly remove all sediment from diversions and other water -disposal practices. If washouts or breaks occur, repair them immediately. Prompt maintenance of small eroded areas before they become significant gullies is an essential part of an effective erosion and sedimentation control plan. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Outlet Stabilization Structure Specification tt 6.41 Construction Specifications 1 Ensure that the subgrade for the filter and riprap follows the required lines and grades shown in the plan. Compact any fill required in the subgrade to the density of the surrounding undisturbed material, Lowareas in the subgrade on undisturbed soil may also be filled by increasing the riprap thickness. 2. The riprap and gravel filter must conform to the specified grading limits shown on the plans. 3. Filter cloth, when used, must meet design requirements and be properly protected from punching or tearing during installation. Repair any damage by removing the riprap and placing another piece of filter cloth over the damaged area. All connecting joints should overlap a minimum of I ft. If the damage is extensive, replace the entire filter cloth. 4. Riprap may be placed by equipment, but take care to avoid damaging the filter. 5. The minimum thickness of the riprap should be 1.5 times the maximum stone diameter. 6. Riprap may be field stone or rough quarry stone. It should be hard, angular, highly weather - resistant and well graded. 7. Construct the apron on zero grade with no overfall at the end. Make the top of the riprap at the downstream end level with the receiving are or slightly below it. 8. Ensure that the apron is properly aligned with the receiving stream and preferably straight throughout its length. If a curve is needed to fit site conditions, place it in the upper section of the apron. 9. Immediately after construction, stabilize all disturbed areas with vegetation (Practice 6.10, Temporary Seeding, and 6.11, Permanent Seeding). Maintenance Inspect riprap outlet structures after heavy rains to see if any erosion around or below the riprap has taken place or if stones have been dislodged. Immediately make all needed repairs to prevent further damage. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 HARDWARE CLOTH & GRAVEL INLET PROTECTION (Temporary) Specification # 6.51 - Construction Specifications As fabric, use a 19-gauge hardware cloth with 1/4 inch mesh openings, with a total height of 2 feet minimum. The sediment control stone, with a height of 16 inches, should have an outside slope of 2:1. For stakes, use steel T posts of 1.25 lb/linear foot with a minimum length of 5 A., driven 2 ft. into the ground, maximum spacing of 4 feet. Specifications I. Uniformly grade a shallow depression approaching the inlet. 2. Drive 5-foot steel posts 2 feet into the ground surrounding the inlet. Space posts evenly around the perimeter of the inlet, a maximum of 4 feet apart. 3. Surround the posts with wire mesh hardware cloth. Secure the wire mesh to the steel posts at the top, middle, and bottom. Placing a 2-foot anchoring flap of the mesh under the gravel is recommended. 4. Place clean gravel (NCDOT #5 or #57 stone) on a 2:1 slope with a height of 16 inches around the wire, and smooth to an even grade. 5. Once the contributing drainage area has been stabilized, remove the accumulated sediment, and establish final grades. 6. Compact the area properly and stabilize with groundcover. Maintenance Inspect the barrier after each significant rain and make repairs at needed. Remove sediment from the area as necessary to provide adequate storage volume for the next rain. Take care not to damage or undercut the hardware cloth during sediment removal. When the contributing drainage area has been adequately stabilized, remove all materials and any unstable sediment and dispose of them properly. Bring the disturbed area to the grade of the drop inlet and smooth and compact it. Appropriately stabilize all bare areas around the inlet. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Sediment Basin Specifications # 6.61 Construction Specifications Site preparations —Clear, grub and strip topsoil from areas under the embankment to remove trees, vegetation, roots and other objectionable material. Delay clearing the pool area until tho dam is complete and then remove brush, trees and other objectionable materials to facilitate sediment cleanout. Stockpile all topsoil or soil containing organic matter for use on the outer shell of the embankment to facilitate vegetative establishment. Place temporary sediment control measures below the basin as needed. 2. Cut-off trench —Excavate a cut-off trench along the centerline of the earth fill embankment. Cut the trench to stable soil material, but in no case make it less than 2 ft. deep. The cut-off trench must extend into both abutments to at least the elevation of the riser crest. Make the minimum bottom width wide enough to permit operation of excavation and compaction equipment but in no case less than 2 ft. Make side slopes of the trench no steeper than 1:1. Compaction requirements are the same as those for the embankment. Keep the trench dry during backfilling and compaction operations. 3. Embankment —Take fill material from the approved areas shown on the plans. It should be clean mineral soil, free of roots, woody vegetation, rocks and other objectionable material. Scarify areas on which fill is be placed before placing fill. The fill material must contain sufficient moisture so it can be formed by hand into a ball without crumbling. If water can be squeezed out of the ball, it is too wet for proper compaction. Place fill material in 6 to 8-inch continuous layers over the entire length of the fill area and then compact it. Compaction may be obtained by routing the construction hauling equipment over the fill so that the entire surface of each layer is traversed by at least one wheel or tread track of the heavy equipment, or a compactor may be used. Construct the embankment to an elevation 10% higher than the design height to allow for settling. 4. Conduit spillways —Securely attach the riser to the barrel or barrel stub to make a watertight structural connection. Secure all connections between barrel sections by approved watertight assemblies. Place the barrel and riser on a firm, smooth foundation of impervious soil. Do not use pervious material such as sand, gravel, or crushed stone as backfill around the pipe or anti -seep collars. Place the fill material around the pipe spillway in 4-inch layers and compact it under and around the pipe to at least the same density as the adjacent embankment. Care must be taken no to raise the pipe from firm contact with its foundation when compacting under the pipe haunches. Place a minimum depth of 2ft. of hand -compacted backfill over the pipe spillway before crossing it with construction equipment. Anchor the riser in place by concrete or other satisfactory means to prevent flotation. In no case should the pipe conduit be installed by cutting a trench through the dam after the embankment is complete. Emergency spillway —Install the emergency spillway in undisturbed soil. The achievement of planned elevations, grade, design width, and entrance and exit channel slopes are critical to the successful operation of emergency spillway. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 6. Inlets —Discharge water into the basin in a manner to prevent erosion. Use diversions with outlet protection to divert sediment -laden water to the upper end of the pool area to improve basin trap efficiency (References: Runoff Control Measures and Outlet Protection). 7. Erosion control —Construct the structure so that the disturbed area is minimized. Divert surface water away from bare areas. Complete the embankment before the area is cleared. Stabilize the emergency spillway embankment and all other disturbed areas above the crest of the principal spillway immediately after construction (References: Surface Stabilization). 8. Safety —Sediment basins may attract children and can be dangerous. Avoid steep side slopes, and fence and mark basins with warning signs if trespassing is likely. Follow all state and local requirements. Maintenance Check sediment basins after periods of significant runoff. Remove sediment and restore the basin to its original dimensions when sediment accumulates to one-half the design depth. Check the embankment, spillways, and outlet for erosion damage, and inspect the embankment for piping and settlement. Make all necessary repairs immediately. Remove all trash and other debris from the riser and pool area. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Sediment Fence (Silt Fence) Specification 6.62 Construction Specifications MATERIALS I. Use a synthetic filter tabric or a pervious sheet of polypropylene, nylon, polyester, or polyethylene yarn, which is certified by the manufacturer or supplier as conforming to the requirements shown in Table 6.62b. Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide minimum of 6 months of expected usable construction life at a temperature range of 0 to 1200F. 2. Ensure that posts for sediment fences are either 4-inch diameter pine, 2-inch diameter oak, or 1.33 lb/linear ft steel with a minimum length of 4 ft. Make sure that steel posts have projections to facilitate fastening the fabric. 3. For reinforcement of standard strength filter fabric, use wire fence with a minimum 14 gauge and a maximum mesh spacing of 6 inches. Table 6.62b Specifications For Sediment Fence Fabric Physical Property Requirements Filtering Efficiency 85%(mm) Tensile Strength at Standard Strength- 20% (max.) Elongation 30 IbAin in (mim) Extra Strength- 50 IbAin in (min) Slurry Flow Rate 0.3 gal/sq ft/min (min) CONSTRUCTION 1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. 2. Ensure that the height of the sediment fence does not exceed 18 inches above the ground surface. (Higher fences may impound volumes of water sufficient to cause failure of the structure.) 3. Construct the fitter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are necessary, securely fasten the filter cloth only at a support post with overlap to the next post. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts using heavy duty wire staples at least 1 inch long, or tie wires. Extend the wire mesh support to the bottom of the trench. 5. When a wire mesh support fence is used, space posts a maximum of 8 ft apart. Support posts should be driven securely into.the ground to a minimum of 18 inches. 6. Extra strength filter fabric with 6ft post spacing does not require wire mesh support fence. Staple or wire the filter fabric directly to posts. 7. Excavate a trench approximately 4 inches wide and 8 inches deep along the proposed line of posts and upslope from the barrier (figure 6.62a). 8. Backfill the trench with compacted soil or gravel placed over the filter fabric. 9. Do not attach filter fabric to existing trees. Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any required repairs immediately. Should the fabric of a sediment fence collapse, tear, decompose or become ineffective, replace it promptly. Replace burlap every 60 days. Remove sediment deposits as necessary to provide adequate storage volume for the next rain and to reduce pressure on the fence. Take care to avoid undermining the fence during cleanout. Remove all fencing materials and unstable sediment deposits and bring the area to grade and stabilize it after the contributing drainage area has been properly stabilized. Hanover Design Services 1121 Floral Pkwy. NC 28403 Construction Road Stabilization Specification # 6.80 Construction Specifications 1. Clear roadbed and parking areas of all vegetation, roots and other objectionable material 2. Ensure that road construction follows the natural contours of the terrain if it is possible. 3. Locate parking areas on naturally flat areas if they are available. Keep grades sufficient for drainage but generally not more than 2 to 3%. 4. Provide surface drainage, and divert excess runoff to stable areas by using water bars or turnouts (References: Runoff Control Measures). 5. Keep cuts and fills at 2:1 or flatter for safety and stability and to facilitate establishment of vegetation and maintenance. 6. Spread a 6-inch course of "ABC' crushed stone evenly over the full width of the road and smooth to avoid depressions. 7. Where seepage areas or seasonally wet areas must be crossed, install subsurface drains or geotextile fabric cloth before placing the crushed stone (Practice 6.81, Subsurface Drain). 8. Vegetate all roadside ditches, cuts, fills and other disturbed areas or otherwise appropriately stabilize as soon as grading is complete (References: Surface Stabilization). 9. Provide appropriate sediment control measures to prevent off -site sedimentation. Maintenance Inspect construction roads and parking areas periodically for condition of surface. Topdress with new gravel as needed. Check road ditches and other seeded areas for erosion and sedimentation after runoff -producing rains. Maintain all vegetation in a healthy, vigorous condition. Sediment - producing areas should be treated immediately. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Temporary Seeding Specification # 610 Specifications Complete grading before preparing seedbeds and install all necessary erosion control practices, such as dikes, waterways and basins. Minimize steep slopes because they make seedbed preparation difficult and increase the erosion hazard. If soils become compacted during grading, loosen them to a depth of 6-8 inches using a ripper, harrow, or chisel plow. Seedbed Preparation Good seedbed preparation is essential to successful plant establishment. A good seedbed is well -pulverized, loose and uniform. Where hydroseeding methods are used, the surface may be lift with a more irregular surface of large clods and stones. Liming - Apply lime according to soil test recommendations. If the pH(acidity) of the soil is not known, an application of ground agricultural limestone at the rate of 1 to 1 %a tons/acre on coarse -textured soils and 2-3 tons/acres on fine -textured soils is usually sufficient. Apply limestone uniformly and incorporate into the top 4-6 inches of soil. Soils with a pH of 6 or higher need not be limed. Fertilizer- Base application rates on soil tests. When these are not possible, apply a 10- 10-10 grade fertilizer at 700-1,000 lb./acre. Both fertilizer and lime should be incorporated into the top 4-6 inches of soil. If a hydraulic seeder is used, do not mix seed and fertilizer more than 30 minutes before application. Surface roughening- If recent tillage operations have resulted in a loose surface, additional roughening may not be required except to break up large clods. If rainfall cuses the surface to become sealed or crusted, loosen it just prior to seeding by disking, raking, harrowing, or other suitable methods, Groove or furrow slopes steeper than 3:1 on the contour before seeding (Practice 6:03, Surface Roughening). Plant Selection Select an appropriate species or species mixture from Table 6.10a, for seeding in late winter and early spring, Table 6.10b for summer, and Table 6.10c for fall.. Hanover Design Services 1123 Floral Pkwy• Wilmington, NC 28403 Seeding Evenly apply seed using a cyclone seeder (broadcast), drill, cultipacker seeder, or hydroseeder. Use seeding rates given in Table 6.10a-6.10c. Broadcast seeding and hyroseeding are appropriate for steep slopes wher equipment cannot be driven. Hand broadcasting is not recommended because of the difficulty in achieving a uniform distribution. Small grains should be planted no more than 1 inch deep, and grasses and legumes no more than '/2 inch. Broadcast seed must be covered by raking or chain dragging, and then lightly firmed with a roller or cultipacker. Hydroseeded mixtures should include a wood fiber (cellulose) mulch. Mulching The use of an appropriate mulch will help ensure establishment under normal conditions and is essential to seeding success under harsh site condition (Practice 6.14, Mulching). Harsh site conditions include: -seeding in fall for winter cover (wood fiber mulches are not considered adequate for this use), -slopes steeper than 3:1, -excessively hot or dry weather, -adverse soils(shallow, rocky, or high in clay or sand), and -areas receiving concentrated flow. If the area to be mulched is subject to concentrated waterflow, as in channels, anchor mulch with netting (Practice 6.14, Mulching). Table 6.10c Temporary Seeding Recommendation for Fall Seeding mixture Species-Rye(grain) Rate(lb/acre) - 120 Seeding dates - Coastal Plain and Piedmont -Aug 15 - Dec. 30 Soil amendments - Follow soil tests or apply 2,000 lb./acre ground agricultural limestone and 1,000 lb/acre 10-10-10 fertilizer. Mulch- Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance- Repair and refertilize damaged areas immediately. Topdress with 50 lb/acre of nitrogen in March, if it is necessary to extend temporary cover beyond June 15, overseed with 50 lb/acre Kobe (Piedmont and Coastal Plain) Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Table 6.10a Temporary Seeding Recommendation for Late Winter and Early Spring Seeding mixture Species- Rye(grain), Annual lespedeza (Kobe in Piedmont and Coastal Plain Rate (lb/acre)- 120 Omit annual lespedeza when duration of temporary cover is not to extend beyond June Seeding dates -Coastal Plain — Dec. 1 — Apr. 15. Soil amendments- Follow recommendations of soil tests or apply 2,000 lb/acre ground agricultural limestone and 750 lb/acre 10-10-10 fertilizer. Mulch -Apply 4,OOOlb/acre straw. Anchor straw by tacking with asphalt, netting or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance - Refertilize if growth is not fully adequate. Reseed, refertilize and mulch immediately following erosion or other damage. Table 6.1 Ob Temporary Seeding Recommendations for Summer Seeding mixture Species -German millet Rate(lb/acre)- 40 Seeding dates -Coastal Plain- Apr. 15-Aug. 15 Soil amendments -Follow recommendations of soil tests or apply 2,000 lb/acre ground agricultural limestone and 750 lb/acre 10-10-10 fertilizer. Mulch —Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting or a mulch anchoring tool. A disk with blades set nearly straight can be used as a much anchoring tool. Maintenance-Refertilize if growth is not fully adequate. Reseed, refertilize and much immediately following erosion or other damage. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Permanent Seeding Specifications # 6.11 Specifications Seedbed Requirements Establishment of vegetation should not be attempted on sites that are unsuitable due to inappropriate soil texture (Table 6.1 la), poor drainage, concentrated overland Flow, or steepness of slope until measures have boon taken to correct these problems. To maintain a good stand of vegetation, the soil must meet certain minimum requirements as a growth medium. The existing soil should have these criteria: - Enough fine-grained (silt and clay) material to maintain adequate moisture and nutrient supply (available water capacity of at least .05 inches water to I inch of soil). - Sufficient pore space to permit root penetration. - Sufficient depth of soil to provide an adequate root zone. The depth to rock or impermeable layers such as hardpans should be 12 inches or more, except on slopes steeper than 2:1 where the addition of soil is not feasible. - A favorable pH range for plant growth, usually 6.0-6.5. - Freedom from large roots, branches, stones, large clods of earth, or trash of any kind. Clods and stones may be left on slopes steeper than 3:1 if they arc to be hydroseeded. If any of the above criteria are not met-i.e., if the existing soil is too coarse, dense, shallow or acidic to foster vegetation —special amendments are required. The soil conditioners described below may be beneficial or, preferably, topsoil may be applied in accordance with Practice 6.04, Topsoi I i ng. Soil Conditioners In order to improve the structure or drainage characteristics of a soil, the following material may be added. These amendments should only be necessary where soils have limitations that make them poor for plant growth or for fine turf establishment (see Chapter 3, Vegetative Considerations). Peat -Appropriate types are sphagnum moss peat, hypnum moss peat, reedsedge peat, or peat humus, all from fresh -water sources. Peat should be shredded and conditioned in storage piles for at least 6 months after excavation. Sand -clean and free of toxic materials Vermiculite -horticultural grade and free of toxic substances. Rotted manure -stable or cattle manure not containing undue amounts of straw or other bedding materials. Thoroughly rotted sawdust- free of stones and debris. Add 6 lb. Of nitrogen to each cubic yard. Sludge -Treated sewage and industrial sludges are available in various forms: these should be used only in accordance with local, State and Federal regulations. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Species Selection Use the key to Permanent Seeding Mixtures (Table 6.1 lb) to select the most appropriate seeding mixture based on the general site and maintenance factors. A listing of species, including scientific names and characteristics, is given in Appendix 8.02. Seedbed Preparation Install necessary mechanical erosion and sedimentation control practices beforo seeding, and complete grading according to the approved plan. Lime and fertilizer needs should be determined by soil tests. Soil testing is performed free of charge by the North Carolina Department of Agriculture soil testing laboratory. Directions, sample cartons, and information sheets are available through county. Agricultural extension offices or from NCDA . Because the NCDA soil testing lab requires I-6 weeks for sample turn- around, sampling must be planned well in advance of final grading. Testing is also done by commercial laboratories. When soil test are not available, follow rates suggested on the individual specification sheet for the seeding mix chosen (Tables 6.11c through 6.1 Iv). Applications rates usually fall into the following ranges: - Ground agricultural limestone Light -textured, sandy soils; 1-1 %x tons/acre Heavy textured, clayey soils 2-3 tons/acre Fertilizer: Grasses 800-1200 lb/acre of 10-10-10 (or the equivalent) Grass -legume mixtures: 800-1200 lb/acre of 5-10-10 (or the equivalent) Apple lime and fertilizer evenly and incorporate into the top 4-6 inches of soil by disking or other suitable means. Operate machinery on the contour. When using a hydrosceder, apply lime and fertilizer to a rough, loose surface. Roughen surfaces according to Practice 6.03, Surface Roughening. Complete seedbed preparation by breaking up large clods and raking into a smooth, uniform surface (slope less than 3:1) Fill in or level depressions than can collect water. Broadcast seed into a freshly loosened seedbed that has not been scaled by rainfall. Hanover Design Services 1123 Floral Pkwy. Wilminni - n"_ "" _- f Table 6.1 Is Seeding No. 4CP for: Well -Drained Sandy loams to Dry Sands, Coastal Plain and Eastern Edge of Piedmont; Low to Medium -Care Lawns Seeding mixture Species - Centipedegrass Rate - 10-20 lb/acre (seed) or 33 bu/acre (sprigs) Seeding dates - Mar. - June (Sprigging can be done through July where water is available for irrigation.) Soil amendments - Apply lime and fertilizer according to soil test, or apply 300 lb/acre 10-10-10. Sprigging - Plant sprigs in furrows with a tractor -drown transplanter, or broadcast by hand. Furrows should be 4-6 inches deep and 211 apart. Place sprigs about 2 ft. apart in the row with one end at or above ground level (Figure 6.1 Id). Broadcast at rates shown above, and press sprigs into the top 1 %, inches of soil with a disk set straight so that sprigs are not brought back toward the surface. Mulch - Do not mulch Maintenance - Fertilize very sparingly-20 lb/acre nitrogen in spring with no phosphorus. Centipedegrass cannot tolerate high pH or excess fertilizer. `Refer to Appendix 8.02 for botanical names Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Table 6.1It Seeding No. 5CP for: Wcll-Drained Sandy Loams to Dry Sands;Low Maintenance Seeding mixture Species Pensacola Bahiagrass Seneca lespedeza Common Bermudagrass German millet Rate (lb/acre) 50 30 10 10 Seeding notes 1. Where a neat appearance is desire, omit sericea 2. Use common Bermudagrass only on isolated sites where it cannot become a pest. Bermudagrass may be replaced with 5 lb/acre centipedgrass. Seeding dates - Apr. I - July 15 Soil amendments - Apply lime and fertilizer according to soil tests, or apply 3,000 lb/acre ground agricultural limestone and 500 lb/acre 10-10-10 fertilizer. Mulch Apply 4,000 lb/acre grain straw or equivalent cover of another suitable mulch. Anchor by tacking with asphalt, roving and netting or by crimping with a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance - Refertilize the following Apr. with 50 lb/acre nitrogen. Repeat as growth requires. May be moved only once a year. Where a neat appearance is desired, omit sericea and now as often as needed. Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 Table 6.11v Seeding No. 7CP for: Grass -lined Channels; Coastal Plain, Lower Piedmont and Dry Soils in the Central Piedmont Seeding Mixture Species - Common Bermudagrass Rate - 40-80 (1/2 lb/1,000 ft ) Seeding dates - Coastal Plain; Apr - July Soil amendments - Apply lime and fertilizer according to soil tests, or apply 3,000 lb/acre ground agricultural limestone and 500 lb/acre 10-10-10 fertilizer. Mulch - Use jute, excelsior matting, or other effective channel lining material to cover the bottom of channels and ditches. The lining should extend above the highest calculated depth of flow. On channel side slopes above this height, and in drainages not requiring temporary linings, apply 4,000 lb/acre grain straw and anchor straw by stapling netting over the top. Mulch and anchoring materials must be allowed to wash down slopes where they can clog drainage devices. Maintenance -A minimum of 3 weeks is required for establishment. Inspect and repair mulch frequently. Refertilize the following Apr. with 50 lb/acre nitrogen. Hanover Design Services 1123 Floral Pkwy. Wilmington r;r- `.!r" Hanover Design Services, P.A. Land Surveyors, Engineers, Land Planners May 6, 2008 Ms. Christine Nelson, Environmental Engineer Wilmington Regional Office Water Quality Section Department of Environment and Natural Resources Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 27405-3845 Re: West Gate Best Western Hotel & Restaurant Brunswick County High Density Fast -Track submittal Dear Christine: Enclosed: • Please find 2 sets of the Water Quality Plan. • 2 sets of the Storm Water Management and Drainage Calcs • The original Storm Water application, with the Pond Supplements and one copy of each. • A check in the amount of $4,000.00 (Express Fee) • 1 copy of the wetlands delineation • 1 original of the "Level Spreader Operation and Maintenance Agreement" and one copy. • 1 original of the "Wet Detention Basin Inspection and Maintenance Agreement' and one copy. • 1 copy of the approved Erosion and Sediment Control Permit If you have any questions or require additional information, please do not hesitate to call me. Sincerely, David Brown Hanover Design Services dbrown@hdsilm.com 6309-BW-dwq-1 .doc 1123 Floral Parkway Wilmington, N.C. 28403 Phone (910) 343-8002 Fax (910) 343-9941 Q�� NCDENK F14L-tN all the informatio, Coordinator along with a of the project location. In North Carolina Department of Environment and Natural Resources Request for Express Permit Review CK the Permitfa) you are • Asheville Region -Alison Davidson 818.296.4698;alison.davidsontmncmaiLnet • Fayetteville or Raleigh Region -David Lee 919-791.4203; david.lee(ncmail.net • Mooresville & -Patrick Grogan 704-663.3772 or patrick.progan e(,ncmail.net • Washington Region -Lyn Hardison 252-946-9215 or lvn.hardison(o)ncmall.net • Wilmington Region -Janet Russell 910350-2004orianet.russell(clncmail.net NOTE: Project application received after 12 noon will be stamped in the following work day. For DENR Use ONLY Reviewer. (71111 Submit Time: l�-= FAX or Emi—p Confirm - -(V7O RSA `1 FAX or Ema_________ xpress__ Project Name:,WEST GATE=BESTWESTERN HOTEL &RESTAURANT County: BRUNSWICK Applicant: RILEY S. EVANS Company: SANKEY PROPERTIES. LLC Address: P.O. BOX 847 City: CLARKTON State: NC Zip: 28433 Phone:910.862-5812 Fax: Email: rseincsu82@aol.com Project is Drains into C:SW (JACKEYS CREEK) waters Project Located in CAPE FEAR River Basin Engineer/Consultant: David S. Hollis PE.PLSCompany: Hanover Design Services PA Address:1123 FLORAL PARKWAYCity: WILMINGTON State: NC Zip: 28403 Phone: 910-343-8002 Fax:: Email: dholl!sL@hdsilm.com all that apply) ❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER: _ ❑ Stream Origin Determination: # of stream calls — Please attach TOPO map marking the areas In questions ® State Stormwater ❑ General ❑ SFR, ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Low Density ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW (Provide permit #)] ®High.DensiCy- peten0onPond-1 # Treatrnent5yste J ❑ Hlgh Density -Infiltration _#Treatment Systems ❑ High Density-Bio-Retention _ # Treatment Systems ❑ High Density —Constructive Wetlands _ # Treatment Systems ❑ High Density -Other _ # Treatment Systems ❑ MODIFICATION SW _(Provide permit#) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed.(CK #_ (for DENR use)) WETLANDS QUESTIONS MUST BE ADDRESSED BELOW ® 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 wl US ACOE: ® Yes ❑ No Permit Received from US ACOE ® Yes ❑ No Fee Split for multiplepermits: Check# Isolated wetland on Property ❑ Yes ® No Buffer Impacts: ® No ❑ YES: acre(s) Minor Variance: ❑ No ❑ YES Major General Variance ❑ No ❑ YES 401 Application required: ❑Yes ❑ No If YES, ❑ Regular Perennial, Blue line stream, etc on site ❑ yes ® No For DENR use only Total Fee Amount SUBMITTAL DATES I Fee I SUBMITTAL DATES Fee CAMA $ Variance Ma'; Min $ SW (❑ HD, ❑ LD, ❑ Gen $ 401: $ LQS $ Stream Deter,_ $ ' UMAY 0 5 2008 DWO PROJ It 1. General Information a. Name of Project b. Street Aftoss, City, County a Acres In Tract d Acres bring disturbed e. Aves In Wetlands 1. Wetlands Must Be delineate 2 Proposed Weiland Impacts I L Cwnws1Ap Irrtmmatlon From NC Secret, g. Description of Development Proposal 1. Previous or Existing Permits 2 Tax Parcel ID Number h. Pr 1998 But Upon Area. If Applicable I. Discuss Phasing of the Project & Storm' I. Disama Prspmed Wasta Water Traatra k. ldwa y Kahane Sava & Projects, Being I L M-Aftsa AnyfAll NM Compliorcs laves or Adjacent To The Project or Coma to T b. Identity Wher the morns Water design Slag steno water or NPOES Phase II, Ads c. Proposed Told%Impervious Surface d. Number of proposed Inatome measure a. Wiz at boll upon area be collected? 1. Identity whether or not the project has bt a butter. g. Discuss Coastal meragemwd areas o1 t h. Disclose whether or not off-ske runs Is L Dlsvrav whether rued ca struollon awes j. It an on-alte evaluation d the sods has b and Include date of site evaluation This is We9McQa Eeaaaw xaraw ads (1E C E I d EDD MAY 0 5 2008 DWQ PP.OJ # ----� & Sign -Olt Obtained From The Corps squxe parttlts Fran Caps & DWO y of Slate Web Ste tier of Facilities When ApBcable a a welar supply aged with Public Moses Ath DENR Agwdm n & Index Number for A/ Water Botllm on e Ptclact Area i high density or taw density, commercial or residential, ess Vested rights when applim w. Identify Podrob a high damky t, type(s) of collection system far requirements & wheher or not devebpmwn is proposed within wiromnantel concern when applicable. .oming onto the site or Into proposed bmp. other property Is necessary to anise this projeCt an dam. discuss Ird'@ation ram, seasonal high water table, Ma, General Information a West Gate -Beet Wastes Hod a Restaurant b. Las 211 & 13R Tama lake Drive. Leland, Brunswick County a 3.57 eves (Lot 214 240 cue) (Lot 13R 1.17 ac) d. 3.22 saes a. B." sores on site (0.08 was to be Impacted, pwmit on file wNSACOE) a. 1. Application on Re with USACOE a. 2 Application an fie aim USACOE 1. See atladwd triamation g. Cwatruci on of a hotel and resteuraN 1. See attached intormatlon 2. Sae afnec ad Informalon h. WA L WA J. Weer aM Sewer are, to be provided by The Novi BmmWxk Bealtary, Dismal k WA LWA Storm Water Infonnation, e. Jaesays Creak 18.77-37CSW `b. high density. canmrer®I,.DAal.as ere-slle srppernmt to aseeng previouslypane parmitted DAM NPDES NI, , DA N165lo edi8np NCDENRDWO Pwmiti SW8990887; DA0270%pmpmad d. DA#1 to previously approved SW-PGnd DAa2 Proposed SW-Pota a. Yes f. No Duffer requiramants Per CAMA on -site cunsuIVIUM (No'navfgatla waters) g. Now h. Nos I. None (axistlrq accasa sans Towne Lake Drive) J. WA 112- �otrci i\�� cx�5k;n� off- S% Pored tic) eo- 112- C O.%Y\r, }b re-� pro�oSc� �o,.d I� O J N Iw 0 N` VN L U.S. ARMY CORPS OF ENGINEERS W1LMINGTON DISTRICT Action Id. SAW-2008-386 County: Brunswick U.S.G.S. Quads: Winnabow NOTIFICATION OF JURISDICTIONAL DETERMINATION Property Owner/Agent: Sankey Properties. LLC Address: c/o Riley Evans PO Box 847 Clarkton.NC 28433 Telephone No.t (910) 270-9778 Property description: Size (acres) 3.58 Nearest Waterway Jackev's Creek USGS RUC 03030007 Location description The subject iur. Indicate Which of the Following Apply: A. Preliminary Determination HD ,126 Nearest Town River Basin Coordinates Based on preliminary information, there may be wetlands on the above described property. We strongly suggest you have this property inspected to determine the extent of Department of the Army (DA) jurisdiction. To be considered final, a jurisdictional determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process ( Reference 33 CFR Part 331). B. Approved Determination X There are Navigable Waters of the United States within the above described property subject to the permit requirements of ` Section 10 of the Rivers and Harbor; Act and Section 404 of the Glean Water Act. Unless there is a change in the late or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this S notification. , X There are wetlands on the above described property subject to the permit requirements of Section 404 of the Clean Water t Act (CWA)(33 USC § 1344). Unless there is a change in Ole law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. _ We strongly suggest you have the wetlands on your property delineated. Due to the size of your property and/or our } r present workload, the Corps may not be able to accomplish this wetland delineation in a timely manner. For a more timely) delineation, you may wish to obtain a consultant. To be considered final, any delineation must be verified by the Corps. i i _ The wetland an your property have been delineated and the delineation has been verified by the Corps. We strongly! suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. i Once verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied upon for a period not to exceed rive years. X Ilia wetlands have been delineated and surveyed and are accurately depicted an the plat signed by the Corps Regulatory Official identified below on 16 February 2008. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not in exceed five years from the date of this notification. There are no waters of the U.S., to include wetlands, present on the above described property which are subject to the permit requirements of Section 404 of Ore Clean Water Act (33 USC 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this Page 1 of f1E C E I V MAY 0 5 2008 DWQ PROJ A i Action ID: SAW-2008-386 N The property is located in one of the 20 Coastal Couufies subject to regulation under the Coastal Area Management Act I (CAMA). You should contact the Division of Coastal Management in Wilmington, NC, at (910) 395.3900 to determine — their requirements. placement of dredged or fill material within waters of the US and/or wetlands without a Department of the Army permit may constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). If you have any questions regarding this determination and/or the Corps regulatory program, please contact Ms. Kimberly Garvey at (910) 2514482. n n....r.. V.... TlnfnrminnHnn D. Remnrlrs E. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B. above) i This correspondence constitutes tin approved jurisdictional determination for the above described site. If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR part 331. Enclosed you will find a Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this „ determination you must submit a completed RFA form to the following address: District Engineer, Wilmington Regulatory Division j Attn: Ms. Kimberly Garvey, Project Manager Wilmington Regulatory Field Office PO Box 1890 i Wilmington, North Carolina 28402-1890 i In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the District Office within 60 days of the date of the NAP. Should you decide to submit an RFA form, it must be received at theabove address by 16 Anril 2008. **It is not necessary to submit a form o the Diatl' Offtcyfif y�tr do not object to the determination in this correspondence." ,/11,Y r/ Corps Date 16February 2008 j 16 February 2013 The Wilmington District is eomm+tted to providing the highest level of support to the public. do so, please complete the attacbe customer Satisfaction Survey or visit littp,//Ivw%v.siiw.usace.anny.mil/WFTLANDS/index.blird to complete the survey online. Copy furnished: Dana Lutheran, SEGI, Inc., 5315 College Road, Suite E, Wilmington, NC 28412 Chad Coburn, NCDENR-DWQ,127 Cardinal Drive, Wilmington, NC 28405 Page 2 of 2 To help us ensure we continue to ; i 1 i i. D E C E I V E MAY 0 5 2008 i DWO i PROJ 0 MINA 9mK1 WEST GATE TRACT 1.2 & 13 m. cm lewms wu.m wn .or.: r..no m.r a uwa .n m..m � am wrmm ♦� r TRACT2 '+�\•• yp+ LOCA77ON MAP TRACTI� ,• ai WEST , �`" • ,F� ••1 RETENRON POND 7RALT F .Z TRACE13 v V 1 drI.�' 1 �N` y •ram 1 v �w� e 1 �00 / —l�+ AD/3 nE C E I V ED �I�J�,►►SJJ MAY 0 5 2008 DWO PROJ # U.S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action ID. SAW-2008-396 County: Brunswick USGS Quad: Winnabow GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner / Authorized Agent-. Sankey Properties, LLC Address: cto Riley Evans PO Box 847 Clarkton. NC 28433 _ Telephone No.: (910) 540-2690 Size and location of property (water body, road name/number, town, etc.): The 3.57 acre tract is located off17 south on Description of projects area and activity: The proposal includes the placement of fill material into Section 404 waters Applicable Law: ® Section 404 (Clean Water Act, 33 USC 1344) ❑ Section 10 (Rivers and Harbors Act, 33 USC 403) Authorization: Regional General Permit Number. Nationwide Permit Number. 18and33 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order and/or appropriate legal action This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (ie., are under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless discretionary authority has been exercised on a case -by -case basis to modify, suspend or revoke the authorization. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You should contact the NC Division of Water Quality (telephone (919) 733-1786) to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior to beginning work you must contact the N.C. Division of Coastal agement in Wilmington, NC, at (910) 395-3900. This Department of the Army verification does not relieve the p e of the responsibility to obtain any other required Federal, State or local approvals/permits. If there are any questions regar n o y f c ditions of the Permit, or the Corps of Engineers regulatory program, please contact]:Cimber ary at ( 0 5i 48 or erly.l.garvey8iisace.army.mil. Corps Regulatory Expiration Date April 2, 2008 The Wilmington District is comm(Ifed to providing the highest k161 of support to the public. To help us ensure we continue to do so, please complete the attached customer Satisfaction Survey or visit httpJ/www.snw.usace.umy.mil/WFTLAMS/index.httnl to complete the survey online. RE C E I V ED MAY 0 5 1.008 DWO PROJM Determination of Jurisdiction: ❑ Based on preliminary information, there appear to be waters of the US including wetlands within the above described project area. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process ( Reference 33 CFR Part 331). ❑ There are Navigable Waters of the United States within the above described project area subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. ❑ There are waters of the US and/or wetlands within the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. ® The jurisdictional areas within the above described project area have been identified under a previous action. Please reference jurisdictional determination issued 2/16/08. Action M SAW-2008-386 Basis of Jurisdictional Corps Regulatory OHicia Date Aril 2, 2008 SURVEY PLATS, FTRT D SKETCH, WETLAND DELINEATION FORMS, PROJECT PLANS, ETC., MUST BE ATTACHED TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAR ABLF. Copy Furnished: Chad Coburn, DENR-DWQ, Wihnington Regional Office, 127 Cardinal Drive Ext., Wilmington, NC 28405 Dana Lutheran, SEGI, Inc., 5315 South College Road, Suite E, Wilmington, NC 28412 ACTION ID 0 SAW-2008-386 SPECIAL CONDITIONS: 1. In order to compensate for impacts to 0.08 acres of riparian wetlands, the permittee shall make payment to the North Carolina Ecosystem Enhancement Program (NC EEP) in the amount determined by the NC EEP, sufficient to perform the restoration of 0.16 acres of riparian wetlands in the Cape Fear River Basin, Cataloging Unit 03030007. Construction within jurisdictional areas on the property shall begin only after the permittee has made full payment to the NC EEP and provided a copy of the payment documentation to the Corps, and the NC EEP has provided written confirmation to the Corps that it agrees to accept responsibility for the mitigation work required, in compliance with the MOT] between the North Carolina Department of Environment and Natural Resources and the United States Army Corps of Engineers, Wilmington District, dated November 4, 1998 2. The permittee shall submit to the U.S. Army Corps of Engineers, Wilmington District an as -built survey of the authorized temporary impact areas. This survey must be submitted within 45 days of construction completion of the subject relocation. Corps Regulatory Official• i Date: TopoZone - USGS Winnabow INC) Quadrangle to ozone hoi, ram�i,� awro�nne,hl 4 1 7'ffp VV� 1 ABM http dlwww.topozone.com(print.asp71ate34.20896&lon=78.02932&s... I� a� Grlgo%y Q NE _na 0 0.1 0.2 0.3 0.4 0.5 km I G 0 0.09 0.18 0.27 0.36 0.45 mi 34.2090°N,78.0293°W (NAD27) Elevation 8.0 ft / 2.4 m (USGS NED) M— R.9 USGS Winnabow (NC) Quadrangle G-1.672 Projection Is UTM Zone 17 NAD83 Datum nE C E I V ED i 0f l I�JnSu MAY 0 5 2008 5nrzoo7 2:15 Pig DWO PROJ# about:blank West Cate -Best Western Hotel & Restaurant May 5, 2008 Gentlemen: The Express stormwater submittal meeting for the Best Western @ West Gate has been scheduled ' with Christine Nelson on May 15, 2008 at 11:00 AM here in the Wilmington Regional Office. The applicant, Mr. Evans, or his assistant is required to attend the meeting. Please review the submittal requirements, attachment. Also, please bring a copy of the engineering certification for the off -site pond. The Express review fee for this submittal is $4,000 (high density application). Please respond within 2 business days to confirm and reserve the submittal date. Thanks, Janet Russell Express Coordinator I of 1 5/5/2008 5:32 PM FW: Nest Gate - Best Western Hotel & Restaurant Subject: FW: West Gate - Best Western Hotel & Restaurant From: "David Brown" <dbrown@hdsilm.com> Date: Tue, 6 May 2008 10:12:24 -0400 To: "Janet Russell" <Janet.Russel I@ncmail.net>, <christine.nelson a nemail.net> CC: <rsejncsu82@aol.com>, "David Hollis" <dhollis@hdsilm.com> Hi Janet & Christine, Thursday the 15th at llam is excellent. See you then. Thanks! David Brown Hanover Design Services, P.A. 1123 Floral Parkway Wilmington, NC 28403 910 343-8002 -----Original Message ----- From: David Hollis Sent: Tuesday, May 06, 2008 8:03 AM To: David Brown Subject: FW: West Gate - Best Western Hotel & Restaurant -----Original Message ----- From: Janet Russell[mailto:Janet.Russell@ncmail.net] Sent: Monday, May 05, 2008 5:33 PM To: David Hollis; rseincsu82@aol.com Subject: West Gate - Best Western Hotel & Restaurant *West Gate -Best Western Hotel & Restaurant* May 5, 2008 Gentlemen: The Express stormwater submittal meeting for the Best Western @ West Gate has been scheduled with *Christine Nelson on May 15, 2008 at 11:00 AM "here in the Wilmington Regional Office. The applicant, Mr. Evans, or his assistant is required to attend the meeting. Please review the submittal requirements, attachment. Also, please bring a copy of the engineering certification for the off -site pond. The Express review fee for this submittal is $4,000 (high density application). Please respond within 2 business days to confirm and reserve the submittal date . Thanks, Janet Russell Express Coordinator i ;Submittal Requirements.doe Content -Description: Submittal Requirements.doc Content -Type: application/in sword Content -Encoding: base64 I of 1 5/6/2008 11:51 AM ADDITIONAL STORM SEWER and SWM CALCULATIONS WEST GATE -Best Western Hotel & Restaurant for Sankey Properties, LLC May, 2008 NARRATIVE and PROJECT DESCRIPTION - The purpose of this project is to construct a new storm water pond in order to treat impervious surface runoff from a future hotel and restaurant site. Portions of this project will drain into an existing storm sewer collection system (See DWQ Permit# SW8 990807). These areas will be reflected in the offsite supplement. The remainder of the project will be directed into the new storm water pond as shown in the plans and calculations. Please see 'The Erosion and Sediment Control and Water Quality Plan for WEST GATE -Best Western Hotel & Restaurant", Hanover Design Services, PA, Drawings No. 6309-13W, Sheets 6 through 9. The site is located at the end of Towne Lake Drive in the West Gate project in Brunswick County. The project contains 3.2 acres of proposed disturbed area. The developable site is gently rolling and wooded. It is bordered on the west by Jackeys Creek and to the east by the West Gate commercial site. (Narrative Table attached) NCDENR-Storm Water Narrative (Best Westem Site) 1. General Information a. Name of Project b. Street Address. City, County c. Aces in Tract d. Acres being disturbed e. Acres in Wetlands /. Wetlands Must Be delineated & Sign -Off Obtained From The Corps 2. Proposed Wetland Impacts Require Permits From Corps & DWO L Ownership Information From NC Secretary of State Web Site g. Description of Development Proposal 1. Previous or Existing Permits 2. Tax Parcel ID Number h. Pre-19&e Built Upon Area, If Applicable I. Discuss Phasing of the Project & Storm water of Facilities When Applicable j. Discuss Proposed Waste Water Treatment & Water Supply k. Identify Historic Sites & Projects Being Funded with Public Monies I. Disclose Arty/An Non-Compiance Issues with DENR Agencies 2. Storm Water Information a. Provide River Basin, Stream Classification & Index Number for AD Water Bodies on or Adjacent To The Project or Closest to The Project Area. b. Identify whether the storm water design is high density or low density, commercial or residential, State stone water or NPDES Phase II, Address Vested rights when applicable; Identify Pockets of high density c. Proposed TotalN Impervious Surface d. Number of proposed treatment measures, type(s) of collection system e. Will aft built upon area be collected? f. Identify whether or not the project has buffer requirements & whether or not development is proposed within a buffer. g. Diseuss Coastal management areas of emrironmental cencem when applicable. h. Disclose whether or not off -site runoff is coming onto the site or into proposed trip. i. Discuss whether road censnuction across other property is necessary to access this project. j. If an on -site evaluation of the wits has been done, discuss infiltration rates, seasonal high water table, etc., and include date of site evah ation (This is recurred for Infiltration Proiacts.) eaoefJC0ENfl t Water Narra zL5 General Information a. West Gate -Best W estem Hotel & Restaurarit b. Lots 2R & 13R Towne Lake Drive, Leland, Brunswick County e 3.57 aces (Lot 2R 2.40 ac) (Lot 13R 1.17 ac) d. 3.22 acres e. 0." acres on site (D.09 acres to be impacted, permit on file w/USACOE) e. 1. Permit received from USACOE e. 2. Permit received from USACOE L See attached information g. Construction of a hotel and restaurant 1. SW 8 990807 (Storm Water Permit for Lot 2) 2. 219606385698 (Lot 2) and 219606388580 (Lot 13) h. WA 1. N/A j. Water and Sewer are to be provided by The North Brunswick Sanitary District k. N/A 1. N/A Storm Water Information a. Jockeys Creek 18-T7-3'C;Sw^ b. high density, commercial, DA#1 as off -site supplement to existing pond previously permitted. DA#2 NPDES Pit C. DA #1 85 % per existing NCDENR.DWO Permit# SW8 990807; DA#2 70 % proposed d. DA#t to previously approved SW -Pond, DA#2 proposed SW -Pond e. yes L No Buffer requirements per CAMA on -site consultation. (Non -navigable waters) g. None h. None i. None (existing access from Tome Lake Drive) j. WA JUL ADDITIONAL STORM SEWER and SWM CALCULATIONS for WEST GATE Best Western Hotel & Restaurant PREPARED FOR Sankey Properties, LLC P.O. Box 847 Clarkton, NC 28433 910-862-5812 SEAL 20007 t .Z5t-(=8 David S. Hollis, PE, PLS Hanover Design Services, PA 1123 Floral Parkway Wilmington, NC 28403 . 1 Radio- 11� �s WINNABOW QUADRANGLE SCALE III, NORTH CAROLINA-BRUNSWICK CO. 7.5 MINUTE SERIES (TOPOGRAPHIC) WEST GATE BEST WESTERN HOTEL & RESTAURANT Impervious Area Map Existing Pond (Off -site) See SW8 990807 Scale: 1 "= 200' April 2008 57,804 BUILDING AREA 18.725 SF PARKING AREA 30,060 SF SIDEWALKS 2,990 SF FUTURE 2,225 SF TOTAL IMPERVIOUS 54.000 SF TOTAL IMPERVIOUS ALLOWED TO EXISTING POND 54,185 SF 30,060 SF (Asphalt Area) TOTAL IMPERVIOUS 30.060 SF 2,990 SF (Sidewalk Area) 2,288 SF 702 SF 18.725 SIDEWALKS TOTAL IMPERVIOUS 2.990 SF 18,725 SF (Building Area) BUILDING AREA TOTAL IMPERVIOUS 18,725 SF HANOVER DESIGN SERVICES, P.A. LAND SURVEYORS, ENGINEERS & LAND PLANNERS 11212E FLORAL PARKWAY WILMINGPHONE: iON.(91 N.C. -8003 PHONE: (9�0) 363-8002 Existing-6309-Best Western -Impervious Map.dwg WEST GATE BEST WESTERN HOTEL & RESTAURANT Impervious Area Map New Pond No.1 Scale: 1 "= 200' April 2008 bb,U/,5 SF BUILDING AREA 5,525 SF PARKING AREA 38,048 SF SIDEWALKS 2,528 SF FUTURE 1,549 SF TOTAL IMPERVIOUS 47,650 SF 39,461 SF — 1,413 SF (Landscaped Area 38,043 SF (Asphalt Area) I U I HL IIVIF'CKV IUUJ 38,048 SF 2,528 SF (Sidewalk Area) 881 SF SIDEWALKS TOTAL IMPERVIOUS 2,528 SF 899 SF SF 5,525 SF (Building Area) BUILDING AREA TOTAL IMPERVIOUS 5,525 SF HANOVER DESIGN SERVICES, P.A. LA.Np SURVEYORS, ORAL PARKWAY &LAND PLANNERS 1123 FLORAL PARKWAY PHONE: (91 N.C. 28002 PHONE: (910) 363-8002 Pond 1-6309-Best Western -Impervious Map.dwg NOTES THIS PROPERTY HAS BEEN EVALUATED BY HEATHER COATS WITH THE NC DIVISION OF COASTAL MANAGEMENT AND WILL NOT REQUIRE A CAMA PERMIT. 98,809 SF TOTAL IMPERVIOUS 155,587 SF TOTAL SITE 63.5X IMPERVIOUS �1 �Jr Jg. GAT 1.2 & l],1 1 STORY PORTION .RE_TAINING. _ WALL 5 _ 2 = _. 'BETA ING - T� —'..--.mvm �ourror� '�•_- ALL.'.'.I-�,'- Pto SEE DRAWING 1/2 FOR 4.:- :• '- Iry TEMPORARY IMPACTS DETAILS :: PROPOSED PERM IMPACT AREA A lz - 0.07 ACRE 12960 SF SEE DRAWING 2/2 FOR TEMPORARY IMPACTS DETAILS 5 STORY TAACTI ISO DOES RETAINING PERM IMPACT AREA B 0.01 ACRE (383 SF) r \ 3• RETAINING�iTO"'» �°T'. °C+L".'�. - - ._ - • . ; WALL \:.:'.'. : ::•:. 1 i:::::::':':-:':':-:-::::':':':.:::::::-:-:.:1 1 KEY ................. PLAN NORTH 1 SCALE r = W-T 0 '50 100 200' GRAPHIC SCALE 1 " = 100' z w r cn w w Z 0 W u !d LIJ U I— c� s o = -% CO z CT Z V Z H Q O m Q N U 1 U Z cp 00 Nr < N = LL w m o C7 n J _-}� r 1 v w m �- cn m a o �L r� < I� REC EW MAR > 2008. REL6 •:.tE AlY 4C'L 0.01FC. 01-10-08WILNr. \\-rotxocciwNrH — HLUItUUM t)UdVCk\1—commercnol\West Gate Hest Western I-lolel\Current Dwgs\ImpoctDrowings\Final Impact Drawings.dwg, 1/11/2008 9:50:47 Ah{ �t+ 5. E. PROPERT LIN_. E_ _ G IE TEMP IMPAC LIMITS E , I` PERM IMP LIAD E I TEMP IMPA T LIMITS ,MITS/BULK o PERM IMP C LIMITS/BULKHEAD --J I lj IE E lE (P E O I r C E N E 404 WETLAND LIN Q IE IE IE 404 WET AND LINE N DED CL 1 r D O ��I D I -n rnz I 4 b r � it m m 0 §� I rn D I pT r� I Pu X_ 1 rn Nrn \ m -u� n r \rn v -moo v Ut N v o —I -o _ .. rn rn o fat -u o (o z Sn`>s O -O 3 2 ri N .-. � C) n D NO N.)rem rn0 o s mD wD , a > m� rn v rn w nl O g > m ' � o z N � o 0 . rn b N ra Dz n >ni D m >` o nip ril 0X rn N D T� }� Cho rnM o �`m�7,1�l1 7ONdnlath \ rn D \\rn D _D JI z G n U) \ �� w \ m m 0� 4Zj �COQ D a� �-f-i-aGJlmeilf 3 - '(�-os-gc�e�f►una �' �a,>(,s a-F' �} �1r�s s ENLARGED AREAS MICHAEL R. McLEOD WEST GATE BEST WESTERN HOTEL 40 & GRADE TOWNS LAKE DRIVE PROFILES ARCHITECT, PA LELAND, NORTH CAROLINA www.mcleodarchitecl.com N 13A HAMPSTEAD VILLAGE, HAMPSTEAD, NC 26443 NEW HOTEL Phone: (910) 270.9778 Fax: (910) 270-9461 w 3 �o m Imo j O N 0 -b ru F m CD 2 W O 0 N Soil Map -Brunswick County, North Carolina Map Unit Legend WEST GATE -Best Western Brunswick County, North Carolina (NC019) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI BaB Baymeade fine sand, 1 to 6 percent slopes 6.9 13.7% BDC Baymeade and Marvyn soils, 6 to 12 percent slopes 8.4 16.6% DO Dorovan muck 5.8 11.5% Ly Lynchburg fine sandy loam 1.5 3.0% NoB Norfolk loamy fine sand, 2 to 6 percent slopes 3.7 7.2% On Onslow fine sandy loam 23.7 46.9% Wo Woodington fine sandy loam 0.5 1.0% Totals for Area of Interest (AOI) 50.7 100.0% Natural Resources Web Soil Survey 2.0 1/29/2008 Conservation Service National Cooperative Soil Survey Page 3 of 3 Soil Map —Brunswick County, North Carolina (WEST GATE -Best Western) I Meters 0 30 so 120 150 Fear 0 100 200 400 800 "FA Natural Resources iiM Conservation Servic Hanover Design Services Web Soil Survey 2.0 National Cooperative Soil Survey 1123 Floral Pkvvy. Wilmington, NC 28403 le 11290008 Page .I f 7 r Hanover Design Services 1123 Floral Pkwy. Wilmington, NC 28403 MAPLEGEND Area of Interest (AOq Area of Interact (AOI) Soils Soil Map Units Special Point Features 0.1 Blowout ® Borrow Pit X Clay Spot Closed Depression Gravel Pit ., Gravelly Spot ® Landfill n Lava Flow 41& Marsh IR Mine or Quarry Qo Miscellaneous Water 0. Perennial Water v Rock Outcrop t Saline Spot Sandy Spot Severely Eroded Spot 0 Sinkhole j) Slide or Slip g Sodic Spot Spoil Area Q Stony Spot USDA Natural Resources Conservation Service Soil Map -Brunswick County, North Carolina (WEST GATE -Best Western) CZ Very Stony Spot f Wet Spot A Other Special Line Features Gully Short Steep Slope Other Political Features Municipalities Cities Urban Areas Water Features J Oceans Streams and Canals Transportation +++ Rails Roads N Interstate Highways US Routes State Highways �y Local Roads Other Roads Original soil survey map sheets were prepared at publication scale. Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL. http://websoilsurvey.nres.usda.gov Coordinate System. UTM Zone 17N This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area Brunswick County, North Carolina Survey Area Data. Version 11, Feb 27. 2007 Date(s) aerial images were photographed: 3/6/1993 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result. some minor shifting of map unit boundaries may be evident. Web Soil Survey 2.0 National Cooperative Soil Survey 1 /29/2008 Page 2 of 3