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HomeMy WebLinkAboutSW8000202_HISTORICAL FILE_20000525STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 000102. DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2000 0 5 25 YYYYMMDD States of North Carolina Department of Environment and Natural Resources Wilmington Regional Office "I James B. Hunt, Jr., Governor Bill Holman, Secretary Division of Water Quality May 25, 2000 Mr. Mark Maynard, President Biltmark Builders, Inc. PO Box 5605 Wilmington, NC 29201 Dear Mr. Maynard: Subject: Permit No. SW8 000202 Windsor Place High Density Stormwater Project Onslow County The Wilmington Regional Office received a complete Stormwater Management Permit Application for Windsor Place on April 24, 2000. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW$ 000202 dated May 25, 2000, for the construction of Windsor Place. This permit shall be effective from the date of issuance until May 25, 2010, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 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 Scott Vinson, or me at (910) 395-3900. Sincerely, Rick Shiver Water Quality Regional Supervisor RSS/sav: S:\WQS\STORMWAT\PERMIT\000202.MAY cc: Fred Cone, P.E. Corann Harper, Onslow County Inspections Scott Vinson Wilmington Regional Office Central Files 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50 % recycled/10% post -consumer paper State Stormwater Management Systems Permit No. SW8 000202 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Biltmark Builders, Inc. Windsor Place Onslow County FOR THE corisuuctiun, operation and maintenance of two wet detention ponds in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until May 25, 2010 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective -,only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit, the Project Data Sheet. The stormwater controls have been designed to handle the runoff from 483,936 square feet of impervious area. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. State Stormwater Management Systems Permit No. SW8 00020') DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Runoff: Classification of Water Body: If Class SA, chloride sampling results: Pond Depth, feet: Permanent Pool Elevation, FMSL: Drainage Area, acres: Total Impervious Surfaces, ftz: Buildings, ftz: Parking, ftz: Sidewalks, ftz: Streets, ftz: Outparcels, ftz Future, ftz Offsite Area entering Pond, ftz: Required Surface Area, ftz: Provided Surface Area, ftz: Required Storage Volume, ft': Provided Storage Volume, ft': Temporary Storage Elevation, FMSL: Windsor Place SW8 000202 Onslow County Mr. Mark Maynard, President Biltmark Builders, Inc. PO Box 5605 Wilmington, NC 29201 April 24, 2000 Pond #1 Pond 92 Half Moon Creek/WOKO2 19-6 Mill Creek / 19-9 "C NSW" "SC NSW" n/a n/a 6.0 6.0 39.00 37.00 8.08 12.65 231,316 252,620 27,050 92,720 64,790 122,800 7,520 37,100 5,400 n/a #1@80,616 ftz; #2@45,940 ftz n/a n/a n/a none, per Engineer none, per Engineer 12,973 13,504 13,500 14,000 18,815 21,243 22,313 . 26,633 40.50 38.71 Controlling Orifice: 2.00" � pipe 2.00" 4) pipe e 3 State Stormwater Management Systems Permit No. S W8 000201 H. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in it's entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. All connections into the stormwater system from future areas or outparcels shall be made such that short- circuiting of the system does not occur. 4. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of side slopes. d. Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. g. Access to the outlet structure must be available at all times. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 6. Decorative spray fountains will not be allowed in the stormwater treatment system. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 8. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. 9. 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. 10. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale of any portion of the property. 11. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon area. State Stormwater Management Systems Permit No. SW8 000202 12. 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. 13. Deed restrictions must be recorded prior to the sale of any outparcel or future area shown on the approved plans to ensure that future owners are made aware of the built -upon area limitations. The following statements must be recorded: a. "To ensure continued compliance with the NC Division of Water Quality Stormwater Management Permit Regulations, 15A NCAC 2H.1000, the maximum built -upon area for Outparcel 41 is 80,616 square feet and Qutparcel #2 is limited to 45,940 square feet as shown on the approved plans. This allotted amount includes any built -upon area constricted within the property boundaries, and that portion of the right-of-way between the lot lines and the edge of the pavement. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming Pools." b. "The runoff from all built -upon area on the outparcel or future area must be directed into the permitted stormwater control system." C. 'Built -upon area in excess of the permitted amount will require a permit modification." d. "The connection into the stormwater control shall be made such that short-circuiting of the system does not occur." 14. A copy of the recorded deed restrictions with all statements as listed above, must be submitted to the DWQ within 30 days of the date of the recording. The recorded copy must be signed by the permittee, dated, stamped with the deed book number and page, and bear the stamp/seal of the Register of Deeds. 15. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision, acquisition, or sale of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval and/or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 16. The Director may determine that other revisions to the project should require a modification to the permit 17. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements ofthe 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. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools State Stormwater Management Systems Permit No. SW8 000202 I1I. GENERAL CONDITIONS This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. I 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. The permittee shall notify the Division of any mailing address changes within 30 days. Individual Off -Site Stormwater Permits must be received from this Division for the Outparcels #1 and #2 before construction of any built upon area. Permit issued this the 25th day of May, 2000. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION L1 ti (.,l � 1 i1 ( —r ti Kerr T. Stevens, Director L Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW8 000202 State Stormwater Management Systems Permit No. SW8 000202 Windsor Place Page 1 of 2 Stormwater Permit No. SW8 000202 Onslow County Designer's Certification 1> as a duly registered in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, 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. I have checked the items listed on Page 2 of this form as a part of this Certification. Noted deviations from approved plans and specification: SEAL Signature Registration Number Date State Stormwater Management Systems Permit No. SW8 000202 Certification Requirements: Page 2 of 2 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. The outlet/bypass structure elevations are per the approved plan. 5. The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. All slopes are grassed with permanent vegetation. 8. Vegetated slopes are no steeper than 3:1. 9. The inlets are located per the approved plans and do not cause short-circuiting of the system. 10. The permitted amounts of surface area and/dr volume have been provided. 11. Required drawdown devices are correctly sized per the approved plans. __12. All required design depths are provided. 13. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 14. The overall dimensions of the system, as shown on the approved plans, are provided. cc: NCDENR-DWQ Regional Office Corann Harper, Onslow County Building Inspector Date Received Fee Paid 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 . I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Wi n�ser—Place— 11,E k R,41143_ T-1c 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Mark Maynard - President - Biltmark Builders Inc. 3. Mailing Address for person listed in item 2 above: City: Wilmington State: NC Zip: 28403 Telephone Number: ( g i o ) 251-5030 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Windsor Place 5. Location of Project (street address): located on NCSR 1470 (Western Boulevard) City: Jacksonville County: Onslow ti 6. Directions to project (from nearest major intersection): approximately 1 mile Northeast of intPrsPrtion of NESP 147n flip + rn Blvd - ) & NCSR 1308 (Gum Branch Road) 7. Latitude: 77°25' 58" Longitude: 77°25' 34" of project 8. Contact person who can answer questions about the project: Name: John L. Pierce f; F.ss.ociaCes P.A. Telephone Number: ( 910 ) 346-9800 II. PERMIT INFORMATION: 1. Specify whether project is (check one): X X New. Renewal Modification Form SWU-101 Version 3.99 Pne I of 4 I 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 X(_High Density Redevelop General Permit _Other 4. Additional Project Requirements (check applicable blanks): _CAMA Major U_Sedimentation/Erosion Control _404/401 Permit _NPDES Stormwater Information on required state permits can be obtained by contacting the Customer ctCe6terat V 1-877-623-6748. APR 4 PROJECT INFORMATION E DWQ 1. In the space provided below, summarize how stormwater will be treated. Also attach � — (one to two pages) describing stormwater management for the project. Stormwater will be treated via use of two wet detention ponds designed for 90% T.S.S. removal 2. Stormwater runoff from this project drains to the White River basin. 3. Total Project Area: 20.73 acres 4. Project Built Upon Area: 54 5. How many drainage areas does the project have? 2 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. BasinIrifo_rmation" ' ' Drainage Area 1 ' ,;Drainage Area 2 ; Receiving Stream Name Half Moon Creek Mill Creek Receiving Stream Class BC N 5 W SC "SW Drainage Area 351,840 s . f . 551,160 s.f Existing Impervious* Area -0- 10,500 s.f.** Proposed Im ervious"Area 231,316 s.f. 252,620 s.f. % impervious* Area (total) 66% 46% rvious Surface Area a Drainage Area:1' DrainageaArea 2, On -site Buildings 27,050 s.f. On -site Streets Emergency Of 5,400 s.f. On -site Parking 64,790 s.f. 122,800 s.f. On -site Sidewalks 7,520 s.f. 37,100 s.f. Other on -site %ti e 0 +PA 126,556 s.f. Off -site Total: Total: " Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. . 2 D **EXISTING IMPERVIOUS ACCESS ROAD (OFF -SITE) TO BE RE -GRADED AND TREATED VIA ROADSIDE SWALE� Foam SWU-101 Version 3.99 Page 2 of 4 7. How was the off -site impervious area listed above derived? IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment. 1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality. These covenants may not be changed or deleted without the consent of the State. **FOR FUTUR5 LNT 2. No more than 126,956 square feet o�any lot s I be covered by structures or impervious materials. Imperious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood decking or the water surface of swimming pools. 3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings. 4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction. 5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement E C 8 d Form SWU-106 Off -Site System Supplement D Form SWU-107 Underground Infiltration Trench Supplement APR 1. 4 2000 Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement PROD # DWQ Form SWU-101 Version 3.99 Page 3 of 4 .Vf. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Regional Office. Please indicate that you have provided the following required information by initialing in the space provided next to each item. • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of 5420 (payable to NCDENR) • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including: - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage areasl delineated - Vegetated buffers (where required) VIL AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm): John L. Pierce & Associates P.A. Mailing Address: P.O. Box 1685' City: Jacksonville State: NC Zip: 28540 Phone: L 910 ) .346-9800 Fax.( 910 ) 346-1210 VIII. APPLICANT'S CERTIFICATION I,(print ortype name ofperson listed inGewalInformation, item 2) Mark Maynard President Biltmark Builders,In, certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H .1000. Date: / /o,' d Form SWU-101 Version 3.99 Page 4 of 4 State Stormwater Management Systems Permit No. SW8 000202 Windsor Place Stormwater Permit No. SW8 000202 Onslow County Designer's Certification Frederick Cone as a duly registered Engineer Page I of 2 in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, Windsor Place Permit No. SW8 000202 ect) for B i l tma rk Builders Inc. (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. I have checked the items listed on Page 2 of this form as a part of this Certification. Noted deviations from approved plans and specification: Signature Date SEAL 7 State Stormwater Management Systems Permit No. SW8 000202 Certification Requirements: Page 2 of 2 I . The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. i L4. The outlet/bypass structure elevations are per the approved plan. pL5. The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. 1-7. All slopes are grassed with permanent vegetation. 1_8. Vegetated slopes are no steeper than 3:1. �i 9. The inlets are located per the approved plans and do not cause short-circuiting of the system. 10. The permitted amounts of surface area and/or volume have been provided. I L Required drawdown devices are correctly sized per the approved plans. 12. All required design depths are provided. 1li. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 14. The overall dimensions of the system, as shown on the approved plans, are provided. cc: NCDENR-DWQ Regional Office Corann Harper, Onslow County Building Inspector JOHN L. PIERCE - SURVEYING Land Surveying - Land Planning - Mapping P.O. Box 1685 409 Johnson Blvd. Jacksonville, N.C. 28541 Office: (910) 346-9800 Fax No.: (910) 346-1210 E-Mail: jpierce@onslowontine.net TO Scott Vinson N.C. Department of Environment and Natural Resources 127 Wgrth Cardi.AAt Drive Wilmington, NC 28405 W �.7mi.Y:1`►1�1L`[e1Y�1111 ❑ Drawings ❑ Copy of Letter ❑ Attached ❑ Prints letter of transmittal DATE 'On NO. April 20, 2000 ATTENTION Scott Vinson RE Windsor Place ❑ Under separate cover via ❑ Plans ❑ Samples ❑ Change order ❑ the following items: ❑ Specifications COPIES DATE NUMBER DESCRIPTION 2 Copies of revised plan (Sheet 3 of 15) 2 Copies of revised sheet 2 of 4' 3 of 4 & revised sheet 2 of 4 for "Wet Detention Basin Operation and Maintenance Agreement") 2 Sets of revised "Stormwater Detention Pond Calcuations" A E 9 V E PROJ a ------ THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use ❑ As requested ❑ Approved as submitted ❑ Approved as noted ❑ Returned for corrections ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints ❑ For review and comment ❑ For bids due 19 ❑ Prints returned after loan to us REMARKS Should you need any additional information, please advise. SIGNED APRIL 2, 2000 STORMWATER DETENTION POND CALCULATIONS WINDSOR PLACE WESTERN BLVD JACKSONVILLE, NC DESCRIPTION: PROPOSED CONSTRUCTION INCLUDES DEVELOPMENT OF A SITE FOR A NEW APARTMENT COMPLEX. CONSTRUCTION WILL INCLUDE A BUILDINGS, PAVING, PARKING ROADS AND LANDSCAPING IN SUPPORT OF THE SITE. THE FACILITY WILL BE BUILT ON AN UNDEVELOPED SITE ON WESTERN BOULEVARD IN JACKSONVILLE. STORMWATER CONTROL WILL BE BY USE OF TWO NEW WET DETENTION PONDS. THE NEW PONDS ARE DESIGNED FOR 90% TSS REMOVAL. A DRAINAGE BREAK LINE DESIGNATING THE DRAINAGE TO EACH POND IS SHOWN ON PLANS. A SUMMATION OF THE CALCULATED STORMWATER RUNOFF IMPACT IS PROVIDED AS FOLLOWS: POND NUMBER 1 SITE DRAINAGE TO POND 1 (351,840 SF)� PAVED/IMPERVIOUS AREA (TO NEW POND)* 231,316 SF GRASSED AREA (CONTRIBUTING TO POND) 99,728 POND: SURFACE AREA 13,500 3:1 SIDE SLOPES 7,296 TOTAL 351,840 SF C •i • • i • • • C PAVING/CONCRETE 64,790 SF BUILDING (APT'S & CLUBHOUSE) 27,050 SIDEWALKS 7,520 EMERGENCY DRIVE 5,400 FUTURE 126,556 TOTAL C E I V E APR 2 4 2000 .. a 231,316SF PROD DWp 231,316 % IMPERVIOUS =----------- = 66% 351,840 2 DETERMINE POND SURFACE AREA FOR 90% TSS REMOVAL: DRAINAGE AREA = 351,840 SF PERMANENT POND DEPTH = 6.0' %IMPERVIOUS = 66% SA/DA = 3.7% SA = (351,840) (.037) = 13,018 SF SAY 13,500 SF IMP.DRAINAGE AREA = 231,316 SF GRASSED AREA (CONT.) = 99,728 SF (C = 0.2) POND SIDE SLOPES = 7,296 SF (C = 0.2) RUNOFF COEFF. _ 231,316 (1.0) -i (107,024)(0.2) .75 331,340 VOLUME = 338,340 X .75 X 1/12 = 21,146 CF 4. DETERMINE THE DEPTH OF STORAGE REOUTRED SA = 13,500 SF SIDE SLOPES = 3:1 LENGTH OF SHORE = 608 FT VOLUME = 21,146 CF V = 1/2 (3X) (X) (608) + 13,500X = 21,146 CF X = DEPTH OF STORAGE = 1.5 FT VOL. = 22,302 CF SURFACE AREA @ PERMANENT POND ELEVATION (39.0') = 13,500 SF SURFACE AREA @ i " DESIGN ELEVATION (40.5') = SF VOLUME = 22302 CF 2 DAYS = 172,000 SEC 5 DAYS = 432,000 SEC 22,302 Q2 =----------- A297CFS 172,000 22,302 Q5 =-------- --- = 0516 CFS 432,000 1 /2 1297 1 /2 .0263 (1.75/2) 1 /2 .0516 D5=------------------------ 1/ 2 = 1.451N 1/ .0263 (1.75/2) USE 2.0" ORIFICE FOREBAY CALCULATIONS (20% OF VOLUME) ARE PROVIDED ON THE PLANS. SITE DRAINAGE TO POND 1 (551,160 SF); PAVED/IMPERVIOUS AREA (TO NEW POND)* 252,620 SF GRASSED AREA (CONTRIBUTING TO POND) 278,690 POND: SURFACE AREA 14,000 3:1 SIDE SLOPES 5,850 TOTAL 551,160 SF PAVING/CONCRETE 122,000 SF BUILDING (APT'S) 87,720 SIDEWALKS 36,000 EMERGENCY DRIVE 6,900 TOTAL, 252,620 SF 252,620 %IMPERVIOUS =---------- = 46% 551,160 • • • •.. u! DRAINAGE AREA = 551,160 SF PERMANENT POND DEPTH = 6.0' %IM,PERVIOUS = 46% SA/DA = 2.46% SA = (551,160) (.0246) = 13,559 SF SAY 14,000 SF [�•1�11(t�13�1►[��[•IllII7llI : • ' • u 1 • ; ► s IMP.DRAINAGE AREA = 252,620 SF GRASSED AREA (CONT.) = 278,690 SF (C = 0.2) POND SIDE SLOPES = 5,850 SF (C = 0.2) 252,620 (1.0) + (284,540)(0.2) RUNOFF COEFF. _--------------------------------- 537,160 .58 VOLUME = 537,160 X .58 X 1/12 = 25,963 CF SA = 14,000 SF SIDE SLOPES = 3:I LENGTH OF SHORE = 488 FT VOLUME = 25,963 CF V = 1/2 (3X) (X) (488) { 14,000X = 25,963 CF X = DEPTH OF STORAGE = 1.71 FT VOL. = 26,080 CF SURFACE AREA @ PERMANENT POND ELEVATION (37.0') = 14.000 SF SURFACE AREA @ 1 " DESIGN ELEVATION (38.7l') = SF 5. DETERMINE ORIFICE SIZE FOR 2 TO 5 DAY DRAWDOWN TIME: VOLUME = 26,080 CF 2 DAYS = 172,000 SEC 5 DAYS = 432,000 SEC 26,080 Q2 =----------- _ .1516 CFS 172,000 26,080 Q5 =-------- -- _ .0604 CFS 432,000 1/2 1516 1/2 .0263 (1.75/2) 1/2 0604 _ _ 1.5 IN - 1 /2 .0263 (1.75/2) USE 2.0" ORIFICE FOREBAY CALCULATIONS (20% OF VOLUME) ARE PROVIDED ON THE PLANS. JOHN L. PIERCE - SURVEYING Land Surveying,- Land Planning - Mapping P.O. Box 1685 409 Johnson Blvd. Jacksonville, N.C. 28541 Office: (910) 346-9800 Fax No.: (910) 346-1210 E-Mail: jpierce@onslowonline.net TO Mr. Scott Vinson N.C. Department of Environment anO Naturals u es 127 North Cardinal Drive Wilmington, NC 28405 ❑ Drawings ❑ Copy of Letter ❑ Attached ❑ Prints letter of transmittal DATE JOB NO. March 13, 2000 ATTENTION Scott Vinson RE Windsor Place - Stormwater Project No. SW8 000202 ❑ Under separate cover via ❑ Plans ❑ Samples ❑ Change order ❑ the following items: ❑ Specifications COPIES DATE NUMBER DESCRIPTION 2 Sets of revised plans 1 List of revisions I D t„2 4 "n0 DWQ THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use ❑ As requested ❑ Approved as submitted ❑ Approved as noted ❑ Returned for corrections ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints ❑ For review and comment ❑ For bids due 19 ❑ Prints returned after loan to us REMARKS Should you need any additional information, please advise. SIGNED State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor Bill Holman, Secretary Division of Water Quality February 24, 2000 Mr. Mark Maynard, President Biltmark Builders, Inc. PO Box 5605 Wilmington, NC 28403 Subject: ACKNOWLEDGMENT OF RECEIPT AND REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No. SW8 000202 Windsor Place Onslow County Dear Mr. Maynard: The Wilmington Regional Office received a Stormwater Management Permit Application for Windsor Place on February 2, 2000. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. The detail for Pond #2 should give a 2.0" hole for the orifice not 1.5" as given. Please correct. 2. Note or show on plans that all roof drains will be directed to the pond for treatment. In particular are the buildings on the fringe of the projects, i.e. 1, 2, 10, 11, 12, 29, 30, 31, & 32. 3. Please include a detail of the main entrance road. 4. Please include a detail of the secondary access road. For high density projects all impervious cover is to be collected and treated in an engineered system. Please collect and treat the runoff from the secondary access road. Make all necessary corrections to the application, supplement form, and plans to show that this requirement is being fulfilled. 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper Mr. Maynard February 24, 2000 Stormwater Project No. S W8 000202 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to March 24, 2000, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. 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. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Scott Vinson Environmental Engineer RSS/sav: S:\WQS\STORMWAT\ADDINFO\000202.FEB cc: Wilmington Regional Office John Pierce, PLS City of Jacksonville FES 0 7 2000 BY, - Engineering LETTER OF TRANSMITTAL TO: Division of Environmental Management 127 Cardinal Drive Extension Wilmington._N.C. 28405 Phone # (910) 395-3900 ,*SON VILLE Caring Community Attn: Ms. Linda Lewis ReL Erosion: Sedimentation iWE ARE SENDING YOU XX ATTACHED UNDER SEPARATE COVER - PRINTS XX PLANS SPECIFICATIONS - COPY OF LETTER XX OTHER Financial Responsibility form DESCRIPTION: THESE ARE TRANSMTITED AS CHECKED BELOW: _ FOR APPROVAL _ AS REQUESTED _ FOR REVIEW AND COMMENT X( FOR YOUR USE COPIES TO: File Tom Anderson, Engineering Specialist Post Office Box 128 • Jacksonville, North Carolina 28541 • (910) 938-5249 • TDD# (910) 455-8852 • FAX (910) 455-6761 FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land -disturbing activity on one or more contiguous acres as covered by the Act before this form and an acceptable erosion and sedimentation control plan have been completed and approved by the Land Quality Section, N.C. Department of Environment, Health, and Natural Resources. (Please type or print and, if question is not applicable, please N/A in the blank.) Part A. I. Project Name Windsor Place 2. Location of land -disturbing activity: County On 1 ow City or Township Jacksonville and Highway/Street NCSR 147n 3. Approximate date land -disturbing activity will be commenced: 02/01 /00 4. Purpose of development (residential, commercial,industrial,etc.): RPs i dPnt i a 1 5. Total acreage disturbed or uncovered(including off -site borrow &waste areas) 23 acres 6. Amount of fee enclosed $ 1200.00 7. Has an erosion and sedimentation control plan been filed? Yes XX No 8. Person to contact should sediment control issues arise during land -disturbing activity. John L. Pierce & Associates FF&ephone (910) 346-9800 9. Landowner(s) of Record (Use blank page to list additional owners): Western Boulevard Associates LLC Name(s) P.O. Box 5601 Current Mailing Address Current Street Address Wilmington, NC 28403 City State Zip City State Zip IO.Recorded in Deed Book No. 1600 Page No. 823 & 826 Part B. 1. Person(s)or firm(s)who are financially responsible for this land -disturbing activity(Use the blank page to list additional persons or firms): Name of Person(s)or Firm(s) Mailing Address Street Address City State Zip City State Zip Telephone Telephone 2. (a)If the Financially Responsible Party is a Corporation give name and street address of the Registered Agent. Mark Maynard President - Biltmark Builders Name P.O. Box 5601 Wilmington, NC 28403 City State Zip City State Zip (910) 251-5030 Telephone Telephone (b)lf the Financially Responsible Party is a Partnership give the name and street address of each General Partner(Use blank page to list additional partners): Name City State Zip City State Zip Telephone Telephone The above information is true and correct to the best of my knowledge and belief and was provided by me under oath. (This form must be signed by the financially responsible person if an individual or his attorney -in -fact or if not an individual by an officer, director, partner, or registered agent with authority to execute instruments for the financially responsible person). I agree to provide correct information should there be any change in the information provided herein. Mark Maynard Type or print name President Title or Authority Signature Date a Notary Public of the County of GI' Or-J State of North Carolina, hereby certify that C C / n, `G/ appeared personally before me this day and being duly sworn a nowledged that the above form was executed by him. )i//�.l Witness my hand and notarial seal, this�day of19xiLW Notary N0T4 :F v °= My Commission expires ;Cq'•, AVOL1� .......... �G�J JOHN L. PIERCE - SURVEYING Land Surveying - Land Planning - Mapping P.O. Box 1685 409 Johnson Blvd. Jacksonville, N.C. 28541 Office: (910) 346-9800 Fax No.: (910) 346-1210 E-Mail: jpierce@onslowonline.net TO Ms. Linda Lewis N.C. Department of Environment —and Natural Reseurees 127 North Cardinal Drive Wilmington, l`dl:1:7;7�ypI�b71`►(eflil�l ❑ Drawings ❑ Copy of Letter RE EIVED FEB 0 2 2000 11 N� ¢��,�� 13Y: ter of transmittal DATE JOB NO. January 31, 2000 ATTENTION Ms. Linda Lewis RE Windsor Place ❑ Attached ❑ Under separate cover via ❑ Prints ❑ Plans ❑ Change order ❑ ❑ Samples the following items: ❑ Specifications COPIES DATE NUMBER DESCRIPTION 1 TOTAL PACKAGE SENT ON 1/19/00 1 **ADDITIONAL Wet Detention Basin Supplement FOR POND #2 1 Copy of your transmittal dated 1 24 00 THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ For your use ❑ As requested ❑ Approved as submitted ❑ Approved as noted ❑ Returned for corrections ❑ Resubmit copies for approval ❑ Submit copies for distribution ElReturn corrected prints ❑ For review and comment ❑ For bids due 19 ❑ Prints returned after loan to us REMARKS Should you need any additional information, please advise. SIGNED 1" State of North Carolina CORP ID 99 2 5 8 9 10 4 Department of the Secretary of State MED Limited Liability Company g�0 ARTICLES OF ORGANIZATION s6 1 G A999 Effective Pursuant to Section 57C-2-20 of the General Statutes of North Carolina, the undersigned does heggq F t i les of Organization for the purpose of forming a limited liability company. NORTH CAROLINA 1. The name of the limited liability company is Western Boulevard Associates LLC 2. The latest date on which the limited liability company is to dissolve is: December 30, 2050 3. The name and address of each organizer executing these articles of organization is as follows: Stephen T. Byrd 3605 Glenwood Avenue, Suite 500, Raleigh, NC 27612 Barry D. Mann 3605 Glenwood Avenue, Suite 500, Raleigh, NC 27612 4. The street address and county of the initial registered office of the limited liability company is: Number and Street 428 Eastwood Road City, State, Zip Code Wilmington, NC 28462 County New Hanover 5. The mailing address if different from the street address of the initial registered office is: n/a 6. The name of the initial registered agent is: Mark L. Maynard 7. Check one of the following: x (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. 8. Any other provisions which the limited liability company elects to -include are attached. 9. These articles will be effective upon filing, unless a date and/or time is specified: This is the 15ttday of September ,19 99 Signature Signature Stephen T. Byrd, Organizer Barry D. Mann, Organizer Type or Print Name and Title Type or Print Name and Title NOTES: I. Filing fce is S 125. This document and one exact or conformed copy of these articles must be filed with the Secretary of State. CORPORATIONS DIVISION 300 N. SALISBURY STREET RALEIGH, NC 27603-5909