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HomeMy WebLinkAboutSW8950611_CURRENT PERMIT_19950912STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD 'Stnte of North Carolina bepariment of Environment, r . Health and Natural Resources Division of Environmental Management Ai James B. Hunt; Jr., Governor [D C N Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director September 12, 1995 Ms. Jo Ann Simmons Post Office Box 248 Shallotte, North Carolina 28459 Subject: Permit No. SW8 950611 Freedom Homes High Density Stormwater Project Brunswick County Dear Ms. Simmons: The Wilmington Regional Office received the Stormwater Application for Freedom Homes on June 9, 1995 Staff review of the plans and specification has determined that the project, as pzoposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H .1000. We are forwarding Permit No. SW8 950611 dated September 12, 1995 to Ms.. -- Jo Ann Simmons. This permit shall be effective from the date of issuance until September 12, 2005 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 Linda Lewis or me at (910) 395-3900. Sincerely, Dave Adkins Regional Water Quality Supervisor DA/arl: S:IWQSISTORMWATIPERMIT195061 LSEP cc: Shannon Houston Delaney Aycock, Brunswick County Inspections Linda Lewis Vit mington-Regional-Office Central Files P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer State Stormwater Management Systems Permit No. SW8 950611 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT 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 Ms. Jo Ann Simmons Brunswick County FOR THE construction, operation and maintenance of stormwater management systems 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 Environmental Management and considered a part of this permit. This permit shall be effective from the date of issuance until September 12, 2005 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit, the Project Data Sheet. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 4 State Stormwater Management Systems Permit No. SW8 950611 DIVISION OF ENVIRONMENTAL MANAGEMENT PROJECT DATA Project Name: Freedom Homes Permit Number: 950611 Location: Brunswick County Applicant: Ms. Jo Ann Simmons Mailing Address: Post Office Box 248 Shallotte, North Carolina 28459 Application Date: June 9, 1995 Water Body Receiving Stormwater Runoff: Williams Branch Classification of Water Body: "C Sw" If Class SA, chloride sampling results: NIA Pond Depth: 4 feet Permanent Pool Elevation: 97.1 MSL Total Impervious Surfaces Allowed: 95,935 square feet Offsite Area entering Pond: 28,250 square feet Green Area entering Pond: 162,949 square feet Required Surface Area: 6,119 square feet Provided Surface Area: 10,131 square feet Required Storage Volume: 12,817 cubic feet Provided Storage Volume: 13,292 cubic feet Temporary Storage Elevation: 98.3 MSL Controlling Orifice: 1.5" pipe 3 State Stormwater Management Systems Permit No. SW8 950611 4. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices (such as swales) shown on the approved plans as part of the stormwater management system without submitting a revision to the permit and receiving approval from the Division. 5. Each of the lots in the subdivision will be limited to the amount of built -upon area indicated in the supporting calculations and per approved plans. 6. The permittee is responsible for verifying that the proposed home plans do not exceed the allowable built -upon area. Once the lot transfer is complete, the home plan may not be revised without approval from the permittee, and responsibility for meeting the built -upon area limit is transferred to the individual homeowner. 7. 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 of the project area. t. In addition, the Director may determine that other revisions to the project should require a modification' to the permit. 8. 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. H. SCHEDULE OF COMPLIANCE 1. The permittee will comply with the following schedule for construction and maintenance of the stormwater management system: a. The stormwater management system shall be constructed in it's entirety, vegetated and operational for it's intended use prior to the construction of any built -upon surfaces except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 2. The facilities must be properly maintained and operated at all times. The approved Operation and Maintenance Plan must be followed in it's entirety and maintenance must occur at the scheduled intervals. n State Stormwater Management Systems Permit No. SW8 950611 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency 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. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DEM. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. Deed restrictions must be recorded which limit the built -upon area per lot to the amount as shown on the Project Data Sheet, per Part I #2. The recorded statements must follow the form: a. "The allowable built -upon area per lot is square feet, inclusive of that portion of the right-of-way between the lot line end the edge of pavement, structures, pavement, walkways of brick, stone, or slate, but not including open wood decking. " -- b. "The covenants pertaining to stormwater regulations may not be changed or deleted without concurrence of the State." C. "Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the State." 6. 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. 7. Upon completion of construction 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. Mail the Certification to the Wilmington Regional Office, 127 Cardinal Drive Extension, Wilmington, North Carolina, 28405, attention Water Quality Section. 8. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of five years from the date of the completion of construction. ffi. GENERAL • CONDITIONS 1. 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 Environmental Management 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. 5 State Stormwater Management Systems Permit No. SW8 950611 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Environmental Management, in accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c). 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. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The 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. , r Permit issued this the 12th day of September, 1995. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston oward, Jr., P.E. , Director Division of Environmental Management By Authority of the Environmental Management Commission Permit Number SW$ 950611 C State Stormwater Management Systems Permit No. SW8 950611 Freedom Homes Brunswick County Stormwater Permit No. 950611 Designer's Certification i, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the- construction of the Project, (eject) 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. Signature Registration Number Date 7 Project. Name: POND MAINTENANCE REQUMEMTXrS Freedom Homes Project No. SW8 950611 Responsible Party: Jo Ann Simmons Phone No. (910) 287-3�n7 Address: Post Office Box 248, Shallotte, North Carolina 28459 I. Monthly, or after every runoff' producing rainfall event, whichever comes fu-st: A. Inspect the trash rack; remove accumulated debris, repair/replace if it is not functioning. B. Inspect and clear the orifice of any obstructions. If a pump is used as the drawdown mechanism, pump operation will be checked. A log of test runs of the pump will be kept on site and made available to DEM personnel upon request. C. Inspect the pond side slopes and grassed inlet swales; remove trash, and repair eroded areas before the next rainfall event. ' . r D. If the pond is operated with a vegetated filter, the filter will be checked for sediment accumulation, trash accumulation, erosion and proper operation of the flow spreader mechanism. Repairs/cleaning will be done as necessary. II. Quarterly: A. Inspect the collection system (ie. catch basins, piping, grassed swales) for proper functioning. Accumulated trash will be cleared from basin grates, basin bottoms, and piping will be checked for obstructions and cleared as required. B. Pond inlet pipes will be checked for undercutting, riprap or other energy dissipation structures will be replaced, and broken pipes will be repaired. M. Semi-annually: A. Accumulated sediment from the bottom of the outlet structure will be removed. B. The pond depth will be checked at various points. If depth is reduced to 75 % of original design depth or 3 feet whichever is greater, sediment will be removed to at least the original design depth. C. Grassed swales, including the vegetated filter if applicable, will be reseeded twice a year as necessary. E C E � V k 0 JUL 1'4 1995 DEm PRO] S RLOCy I POND MAINTENANCE REQUIREMENTS PAGE 2 IV. General: A. Mowing of the side slopes will be accomplished according to the season. Maximum grass height will be 6" . B. Cattails are encouraged along the pond perimeter, however they will be removed when they cover more than 1/2 the surface area of the pond. C. The orifice/pump is designed to draw down the pond in 2-5 days. If drawdown is not accomplished in that time, the system will be checked for clogging. The source of the clogging will be found and eliminated. D. All components of the detention pond system will be kept in good working order. Repair or replacement components will meet the original design specifications as per the approved stormwater plan. If previously approved components are determined to be ineffective, the component must be redesigned and/or replaced. V. Special Requirements: hereby acknowledge that I am the financially responsible party for maintenance of this detention pond. I will perform the maintenance as outlined above, as pa he Certification of Compliance with Stormwater Regulations received for this project. Signature: co Dar--: 71�79�% I, a Notary Public forthe State of �pr i�oV—j , County o _r �,,s,��c�� , do hereby certify that personally appeared before me this rl— day of 2 U-1st� , 19�, and acknowledge the due execution of the foregoing instrument. Witness my hand an-d official seal, ®TAfi My commission expires 1 J C. 1 qg � i r DA/arM l: S:IWQSISTORWATIFORMSIO&M-POND. FOR cs;kyI- f•A �, Project Name. POND MAINTENANCE REQUIRDMWENTS Freedom Homes Responsible Party: Jo Ann Simmons Project No. Sw8 950611 Phone No. (910) 281=36b2 Address: Post Office Box 248, Shallotte, North Carolina 28459 I. Monthly, or after every runoff producing rainfall event, whichever comes fast: A. Inspect the trash rack; remove accumulated debris, repair/replace if it is not functioning. B. Inspect and clear the orifice of any obstructions. If a pump is used as the drawdown mechanism, pump operation will be checked. A log of test runs of the pump will be kept on site and made available to DEM personnel upon request. C. Inspect the pond side slopes and grassed inlet swales; remove trash, and repair eroded areas before the next rainfall event. D. If the pond is operated with a vegetated filter, the filter will be checked for sediment accumulation, trash accumulation, erosion and proper operation of the flow spreader mechanism. Repairs/cleaning will be done as necessary. II. Quarterly: A. Inspect the collection system (ie. catch basins, piping, grassed swales) for proper functioning. Accumulated trash will be cleared from basin grates, basin bottoms, and piping will be checked for obstructions and cleared as required. B. Pond inlet pipes will be checked for undercutting, riprap or other energy dissipation structures will be replaced, and broken pipes will be repaired. 1U. Semi-annually: A. Accumulated sediment from the bottom of the outlet structure will be removed. B. The pond depth will be checked at various points. If depth is reduced to 75 % of original design depth or 3 feet whichever is greater, sediment will be removed to at least the original design depth. C. Grassed swales, including the vegetated filter if applicable, will be reseeded twice a year as necessary. ORMWATER R Do ID. EM PROD # = s gso(V I I t`` i 1;.1ti � � � iis4 � #�:r .:� _.._ .. .�. rlt�i'. POND MAINTENANCE REQUIREMENTS PAGE 2 IV. General: A. Mowing of the side slopes will be accomplished according to the season. Maximum grass height will be 6". B. Cattails are encouraged along the pond perimeter, however they will be removed when they cover more than 1/2 the surface area of the pond. C. The orifice/pump is designed to draw down the pond in 2-5 days. If drawdown is not accomplished in that time, the system will be checked for clogging. The source of the clogging will be found and eliminated. D. All components of the detention pond system will be kept in good working order. Repair or replacement components will meet the original design specifications as per the approved stormwater plan. If previously approved components are determined to be ineffective, the component must be redesigned and/or replaced. V. Special Requirements: I, -aJ„ s _ , hereby acknowledge that I am the financially responsible party for maintenance of this detention pond. I will perform the maintenance as outlined above, as pa he Certification of Compliance with Stormwater Regulations received for this project. Sibnature: Q0 Date: Vf I, ma, a Notary Public for the State of �OV'4r%- LVG1 i vu.J County o �r can tiict�c_ _ do hereby certify that to kmt4 personally appeared before me this �J! day of 19�� , and acknowledge the due execution of the foregoing instniment. Witness nay hand and official seal, My commission expires colqq DA/arl: S:1WQSISTORM WATIFORMSIO&M- POND. FOR DIVISION OF ENWRONTN ENTAL 117ANAGEMENT DENSITY ENGINEERED X PROJECT DATA Project Name Freedom Homes Location (County, Township/Municipality, Address, State Road) Brunswick County_ 4450 Main Street, Shallotte,NQ,US 17 Business Owner's Name Jo Ann Simmons MaiIingAddress Post office Box 248, Shallotte, North Carolina 28459 Phone Number (910) 287- 3602 Submittal Brief Description (include map and 'appropriate drawings) Mobile Home Sales Lots Name of Water Body Receiving Stormwater Runoff. `Williams Branch Classification of Water Body C Sw If SA waters, engineered system, and distance is C0.5 miles, attach report of chloride sampling results N/A' mall, StatelFederal Permits/Approvals Required (Check appropriate blanks) . CAMA Major SedimentationfEros ion Control X 404 Permit DEM/DHS Sewage Disposal Other (Specify) CALCULATION OF BUILT UPON AREA Built upon area means that portion of -a development that is covered by impervious or partially pervious cover including buildings, pavement, *recreation facilities, gravel, etc., but not including wood decking. If•ihe project includes areas,draining to different water classifications, please note them separately; below. Subwatershed Subwatershed l" 2 SVhI�'Ji r� 2 d Classification C sw Built upon area :95 2.20 { q�� Total Project Area 3.40 % Built upon Area 60.3 Allowable BIU Area 30.0 Is the Project B/U Area S the AIlowable B/U Area? No (If no, an engineered system is required.) % Built upon area = (built upon area I total project area) * 100 Built upon area limits for projects to meet density: SA waters --- 25%, Other —30% STORMWATER COLLECTION SYSTEM, Describe how the runoff will be treated See attached plans O UElHffidd p E C D El,1 E :... lug.. 1�0 1995 Qao SWI g5c(c i BUFFER AREA Is lie built upon area at least 30 feet from mean high water of all surface waters? No If no, please provide a description Engineered solution (Note: Only boat ramps, public roads, public bridges, and walkways to water related facilities are allowed within .30 feet of the mean high water line if the project is intended to meet stormwater control requirements through density limits.) DEED RESTIUCTIONS AND PROTECTrVE COVENANT'S By my signature below, I certify that the recorded deed restrictions and protective covenants for this project shall Iimit the allowable built -upon area per lot to N A square feet inclusive of right-of-way, structures, pavement, walkways or -patios of brick, stone, or slate, not including wood decking, state that the covenants will be binding on all parties and persons clairriing under them, that they will run with the land, and that benefits may be enforced by the State of North Carolina, therefore, the covenant cannot be changed or deleted without consent of the State. CERTIl{ ICA LION L�)knAvan y% certify that the information included on this submittal form is -correct, that the project will -be constructed in conformance with this information, and that to the best of my knowledge, the proposed project -complies with the requirements of 15 NCAC 214:1003 :(b).. I authorize- the below" named person or firm to submit stormwater plans on my behalf, and agree to abide by the`dead res ction statement above. 7 Own e s Signature Dat Provide authorized person or firm name and address below: Houston and Associates, P.A. 117 Pine Street Post Office Box 2927 .. Shallotte, North Carolina ,2((8459 [, Q.r L 4D,allotaryPublicfortheStateof tUp �Ara�i,nn� County of Ann. "SLj0- do hereby certify that -s a ^ Au,,., 'j,� nKti 4 _ personally appeared before me this -'� - day of 19_5�5 , and ges the due execution of the foregoing' Iinstrument. Witness my hand and o icial seal, IQ A 1.• No —4&,,,,r, My commission expires ,� cz DIVISION OF ENVIRONMENTAL Regional Office till, Date ual Evaluating Forms/Plans Regional Water Quality Supervisor _. 1r- cc:- ;.="Applicant/W.iRO/Bradley Bennett/Central Files