Loading...
HomeMy WebLinkAboutSW7010905_CURRENT PERMIT_20090420STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW 905 DOC TYPE (ZP CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE DOC DATE g/aD�oIC7 YYYYMMDD ��� Q�pA�j MCDE R North Carolina Department of Environment and Division of Water Quality Beverly Eaves Perdue Governor Coleen H. Sullins Director Natural Resources Dee Freeman Secretary April 20, 2009 Mr. Bill Olvaney, President Sellhorn Heights, Phase IV, Homeowner's Association, Inc. 106 Felicity Lane New Bern, NC 28562 Subject: Stormwater Permit No. SW7010905 — Ownership Change Sellhorn Heights, Phase IV High Density Subdivision Project Craven County Dear Mr. Olvaney: R The Washington Regional Office received a complete State Stormwater Permit Ownership Change Form for Sellhorn Heights, Phase IV on March 13, 2009. 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. SW7010905 dated April 20, 2009, for the construction of the subject project. This permit shall be effective from the date of issuance until August 15, 2012, shall void Permit No. SW7010905 dated August 15, 2002 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. The original approved plans (approved on August 15, 2002) are still in effect and shall be transferred from Sellhorn-Scheper, LLC to Sellhorn Heights, Phase IV, Homeowner's Association, inc. 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, 6714 Mail Service Center, Raleigh, NC 27699-6714. 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 Samir Dumpor, or me at (252) 946-6481. Ancere y, AiHodge Regional Supervisor Surface Water Protection Section AHlsd: J:IWPDATAIWQSISD1Permits — Wet Pond1SW7010905 cc: Bobby Billingsley, PE, Thomas Engineering, PA Craven County Building Inspections ,.,Washington Regional Office Central Files Mr. Rick Scheper, Sellhorn-Scheper, LLC (3940 US Hwy 70, New Bern, NC 28560) North Carolina Division of Water Quality Internet: www,nmaterqualimore 943 Washington Square Mall Phone: 252-946-6481 One Washington, NC 27889 FAX 252-946-9215 Nort/�hr/Car/�oTina A.. C.....J 11--- s�._:�dn /(:__�.:.._ n_�I__ C..•_1....... Ll10I ❑........i.. d H nw 11.... ^--- --• ^--..._ Al//1 ✓ ./w/h/ State Stormwater Management Systems Permit No. SW7010905 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 Sellhorn Heights, Phase IV, Homeowners Association, Inc. Sellhorn Heights, Phase IV Craven County FOR THE construction, operation and maintenance of a wet detention pond 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 fife 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 August 15, 2012, 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. The stormwater control has been designed to handle the runoff from 187,460 square feet of impervious area. The subdivision is permitted for 44 lots, each allowed 2,800 square feet of built -upon area. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 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. Page 2 of 5 State 5tormwater Ivianagemem aystems Permit No. SW7010905 ' 6. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, acres: 14.49 b. Total Impervious Surfaces, ac: 4.30 C. Pond Depth, feet: 5.0 d. TSS removal efficiency: 90% e. Design Storm: 1" f. Permanent Pool Elevation, FMSL: 14.0 g. Required Permanent Pool Surface Area, ft2: 5,818 h. Provided Permanent Pool Surface Area, ft2: 6,264 i, Permanent Pool Volume, ft3: 18,660 j. Forebay Volume, ft3: 2,000 k. Temporary Storage Elevation, FMSL: 16.0 I. Required Storage Volume, ft3: 12,132 M. Provided Storage Volume, ft3: 12,528 n. Controlling Orifice: 1.25" O pipe o. Receiving Stream/River Basin: UT-Brices Creek I Neuse River basin P. Classification of Water Body: "SC" II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. lmmediate 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, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. Page 3 of 5 State Stormwater Management Systems Permit No. SW7010905 4. 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. 5. 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. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate 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. A modification may be required for those deviations. 7. 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. 8. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. Page 4 of 5 State Stormwater Management Systems Permit No. SW7010905 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 formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, 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. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 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) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. 10. This permit shall be effective from the date of issuance until August 15, 2012. Application for permit renewal shall be submitted' 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. Permit issued this the 20th day of April, 2009. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION 6- -- p for Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Stormwater Permit No. SW7010905 Page 5 of 5 Sellhorn Heights, Phase 4 New Bern, NC Grassed Swales & Wet Detention -Pond System Stormwater Permit No. SW7010905 Designer's Certification I. _ r.1 L.0 , as a duly registered Professional Engineer i State of North Carolina, having been authorized to observe perzo ically w ekly./(full time) the construction of the project,'' .� e, 4 s pk4SG CS��—i�ad s dti� �wa I s �ticuaa�� 4aI 1 _(Project) for Se, f l L,_rJ — Cr CL ZL� S �,rcl se� ��u)( Pro j ect 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 f the approved plans and specifications. Signature _ Registration Date A J_ Permit No. (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources ���Division of Water Quality 6 STORMWATER MANAGEMENT PERMIT APPLICATION FORECEIVED WET DETENTION BASIN SUPPLEMENT JUL 3 0 2002 This form may be photompled for use as an original DWQ Stormwater Management Plan Review: DWQ-1NAR0 A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details. 1. PROJECT INFORMATION Project Name: Q rkstic.. H iz Contact Person: =1 ,-,. Phone Number: For projects with multiple basins, specify which basin this worksheet applies to: elevations Basin Bottom Elevation Permanent Pool Elevation Temporary Pool Elevation areas Permanent Pool Surface Area Drainage Area Impervious Area 5, c) ft. / Lt o ft. 16.0 ft. 6 2 6 L� sq. ft. (floor of the basin) (elevation of the orifice) (elevation of the discharge structure overflow) (water surface area at the orifice elevation) (on -site and off -site drainage to the basin) (on -site and off -site drainage to the basin) volumes Permanent Pool Volume i 9 440 cu. ft. (combined volume of main basin and forebay) Temporary Pool Volume r L 52 S cu. ft. (volume detained above the permanent pool) Forebay Volume ? uy0 cu. ft. (approximately 20% of total volume) Other parameters SA/DA1 •Salo (surface area to drainage area ratio from DWQ table) Diameter of Orifice ��f- • in. (2 to 5 day temporary pool draw -down required) Design Rainfall G • Z in. Design TSS Removal 2 O % (minimum 85% required) Form SWU-102 Rev 3.99 Page I of 4 P-6 JUL r, Footnotes: When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non- standard table entries. In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide 90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal. H. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. if the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach ,justification. a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). The forebay volume is approximately eqw,' to 20% of the basin volume. c. The temporary pool controls runoff from the design storm event. d. The temporary pool draws down in 2 to 5 days. e. if required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations) basin length to width ratio is greater than 3:1. The basin side slopes above the permanent pool are no steeper than 3:1. A submerged and vegetated perimeter shelf with a slope of 6:1 or Iess (show detail). T. Vegetative cover above the permanent pool elevation is specified. LA rash -rack or similar device is provided for both the overflow and orifice. recorded drainage easement is provided for each basin including access to nearest right- of-way. 1. If asin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. in. A mechanism is specified which will drain the basin for maintenance or an emergency. ?.. r S IIL WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT 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) 0 does Vdoes not incorporate a vegetated filter at the outlet. This system (check one) oes. 0 does not incorporate pretreatment other than a forebay. Form SWU- 102 Rev 3.99 Page 2 of 4 r Maintenance activities shall be performed as follows: 1. After every significant runoff producing rainfall event and at least monthly: a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. 2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.). 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 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads Sediment Rerhoval El. Bottom FOREBAY feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation Sediment Removal Elevation -------------------------------------- Bottom Elevation MAIN POND 75% 25% 5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These plants shall be encouraged to grow along the vegetated shelf and forebay berm. 6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. Form SW-102 Rev 3.99 Page 3 of 4 7. All components of the wet detention basin system shall be maintained in good working order. I acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: 9 � C- LL. SQ- I I k rs -*J Phone: 4- no L- (0 5 S Ib 5'If- %-j Date: �7 Z `i07 Note: The Iegally 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. I, 0/% � S A I �o"A-S , a Notary Public fortheState of % P44\. G,,, , County of C l e 1-4 , do hereby certify that � S o j ko "' r'j personally appeared before me this 25 day of , 7� Z . and acknowledge the due executio3} of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, OTA4 0��00�106.��'OsaC SEAL My commission expires Z Form SW-J-102 Rev 3.99 Page 4 of 4 ..� .a r . � i r �. 1 , ,�_, , � � ' � � . i � _ � ' r �� � � t r' � � . . �. � t � �� r1 .' r ` � , Thomas Engineering, PA 403-C Airport Road P. O. Box 1309, New Bern, NC 28563 252.637.2727 fax:252.636.2448 email: jthomas744@aol.com aol.com To: Stormwater Management Section Division of Water Quality 943 Washington Square Mall Washington, NC 27889 Attn: Bill Moore Re: Revised Stormwater Plan Scllhorn Heights IV Craven County 2000-014 Dear Bill, RECEIVED JUL 3 0 2002 ®WQ-WARO July 29, 2002 Please find enclosed for the referenced the original Wet Detention Basin Supplement and one copy. ou should have any questions or comments please do not hesitate to call. Ion1aS, C AADATA12000-014 Selll)ornlCieneral\Sli'113.doc � S of w A rF9 A� `�� OG Michael F. Easley, Governor William G. Ross Jr., Secretary �- r North Carolina Department of Environment and Natural Resources p Alan W. Klimek, P.E. Director Division of Water Quality DIVISION OF WATER QUALITY August 15, 2002 2.0� ZG�� Mr. Richard Sellhorn 2000 Airport Road New Bern, NC 28562 Subject: Stormwater Permit No. SW7010905' Sellhorn Heights, Phase 4 High Density Stormwater Project Craven County Dear Mr. Sellhorn: The Washington Regional Office received the completed. Stormwater Application for the subject project on July 30, 2002. 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. SW7010905 dated August 15, 2002, to Mr. Richard' Sellhorn. This permit shall be effective from the date of issuance until August 15, 2012 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. 943 Washington Square Mall Washington, N.C. 27889 Telephone (252) 946-Wl FAX (252) 946-9215 Mo Mr..Richard Sellhorn August 15, 2002 Page Two If you have any questions, or need additional information concerning this matter, please contact Bill Moore at (252) 946- 6481, extension 264. Sincerely, Jim Mulligan Water Quality Regional Supervisor Washington Regional Office cc: Thomas Engineering Craven County Inspections shington Regional Office Central Files State Stormwater Management Systems Permit No. SW7010905 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STQRMWATER 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 Mr. Richard Sellhorn Craven County FOR THE construction, operation and maintenance of stormwater management. systems in compliance with the provisions of i5A 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 for grassed swales and a wet detention pond system to serve Sellhorn Heights Subdivision, Phase 4, located near New Bern, NC. This permit shall be effective from the date of issuance until August 15, 2012 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 4 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. 3 r DIVISION OF WATER QUALITY PROJECT DATA Project Name: Sellhorn Heights, Phase 4 Permit Number: SW7010905 Location: Craven County Applicant: Mr. Richard Sellhorn Mailing Address: 2000 Airport Road New Bern, NC 28562 Application Date: 9/06/01.- original 7/30/02.- complete Water Body Receiving Stormwater UT-Brices Creek Runoff: Classification of Water Body: SC Total Site Area: 14.49 acres Total Impervious Surfaces allowed: 4.30 acres Pond/Basin Depth: Required Surface Area (SA/DA) : Provided Surface Area: Required Storage Volume: Provided Storage Volume: Controlling Orifice: 4 5.0 ft 5818 sf 6264 s f 12,132 cf 12, 528 cf 1.25 - .inch diameter 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. 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. Change of ownership d. Redesign or addition to the approved amount of built -upon area e. Further subdivision of the project area. In addition, the Director may determine that other revisions to the project should require a modification.to the permit. 6. 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. II. 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 its entirety, vegetated and operational for its 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 its entirety and maintenance must occur at the scheduled intervals. 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: 5 a. Semi-annual 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 DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. 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. 6. 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 Washington Regional Office, 943 Washington Square Mall, Washington, North Carolina, 27889, attention Division of Water Quality. 7. 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. III. 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 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. 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 143-215.6(a).to 143-215.6(c). u 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. Permit issued this the 15 th day of August, 2002. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION eL '7-�' Alan W_ Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7010905 7 4 Sellhorn Heights, Phase 4 New Bern, NC Grassed Swales & Wet Detention Pond System Stormwater Permit No. SW7010905 Designer's Certification 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, for (Project) (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 0 I or A11 ���� NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality . STATE STORMWATER PERMIT NAME/OWNERSHIP CHANGE FORM I. CURRENT PERMIT INFORMATION: 1. Stormwater Management Permit Number: 5 w 701 0 9 0 2. Permit Holder's Name: 54 tLLHvtA-5Cg06a1 LAC 3. Signing official's Name: R IC r 6GI1 EP6(L Title: m &K6" - M A.-J4602 (person legally responsible for permit) 4. Mailing Address: 3 9•`io us Ht,4 i 70 _.. City: rJ ire 6Ee•� _ State: N C- Zip: Z%6-6 0 Phone: {2d4 6 3 7- R 7 7 o Fax: (-- ) II. NEW OWNER 1 PROJECT 1 ADDRESS INFORMATION: 1. This request is for: (please check all that apply) ✓ a. Change in ownership of the property/company (Please complete Items #2, #3, and #4 below) b. Name change of project (Please complete Item #5 below) c. Mailing address change. (Please complete Item #4 below) d. Other (please explain): 2. New owner's name to be put on permit: SEu-HoeA HEI(7HTS PHA sF VL H,,Mfat, E s Asfoc* 7"/urn 3. New owner's signing official's name and title. BILL oLVANEy Title: FRESrpEoJT 4. New Mailing Address:. 1,54 _ t~ f_:;L-ic ir'1 LRJ E_ City: _ #JCw a�2.J State: Zip: 2 S: 6 z- Phone: RsZ� 6 3 S - 3 I! 9 Fax: { —) 5. New Project Name to be placed on permit: ..j MAR 13 ?Onq Ownership/Name Change-022309 Page 1 of 3 PERMIT NAME/OWNERSHIP CHANGE FORM THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION OF WATER QUALITY UNLESS ALL OF THE APPLICABLE ITEMS LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL. REQUIRED ITEMS: This completed form. Legal documentation of the transfer of ownership. -3. A copy of the recorded deed restrictions, if required by the permit. /4. The designer's certification, if required by the permit. ,15. A signed Operation and Maintenance plan, if a system that requires maintenance will change ownership. �6. Maintenance records. CERTIFICATION MUST BE COMPLETED AND SIGNED BY BOTH THE CURRENT PERMIT HOLDER AND THE NEW APPLICANT IN THE CASE OF A CHANGE OF OWNERSHIP. FOR NAME CHANGES, COMPLETE AND SIGN ONLY THE CURRENT PERMITTEE'S CERTIFICATION. Current Permittee's Certification: I, R i c is 5'[.H EPEE , attest that this application for a name/ownership change has been reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts of this application are not completed and that if all required supporting information and attachments are not included, this application package will be returned as incomplete. Signature: New Applicant's Certification: (Must be completed for all transfers of ownership) 1, 13 «L. o t-yArJ6'1 , attest that this application for an ownership change has been reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts of this application are not completed and that if all required supporting information and attachments are not included, this application package will be returned as incomplete. Signature. Date: 22 �a Mail the entire package to: NCDENR Division of Water Quality Surface Water Protection Section — Stormwater at the Appropriate Contact Address (see the following page) Ownership/Name Change-022309 Page 2 of 3 Sellhorn Heights, Phase 4 New Bern, NC Grassed Swales & wet Detention'Pond System Stormwater. Permit 'No. SW7010905 Designer's Certification 1. 'Ja k.� 02. / Ld.1,t , as a duly registered Professional Engineer i ' State of North Carolina, having been authorized to observe perio zcally ekl/y./[fulll time) the const-ruction . of the project,' e; STy/'MUJI Q-L (Project) ! for L-04 (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 f the approved plans and specifications. Signature % •• . Registration N er ✓'. Date r�� 10147 M 8 Permit Number: (to be provided by DWQ) Drainage Area Number: Wet Detention Basin Operation 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 incorporate a vegetated filter at the outlet. This system (check one): ❑ does ® does not 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 operation 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: How I will remediate theproblem: The entire BMP Trash debris 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 long. approximatel six inches. Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 5 Permit Number: (to be provided by DWQ) Drainage Area Number: Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 5 Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How 1 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. Algal 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. Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 5 Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How f 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 a 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. if applicable) 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 3�5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 3�5 feet in the forebay, the sediment shall be removed. Sediment Removal BASIN DIAGRAM ill in the blanks) 17 Permanent Pool Elevation 6_5' 3' rPeanen Pool-------------- lume Sediment Removal Elevation 3' Volume in,----------------------------=-------------- ------ement Bottom Elevation 1.5' 1-ft n. Storage Sediment Storage FOREBAY MAIN POND Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 5 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Sellhon Heights, Phase 4, Sections 1 & 2 - Wet Detention Basin #1 BMP drainage area number: I Print name:Bill Olvane Title: President - Sellhorn Heights Phase IV Homeowner's Association Address:106 Felicity Lane, New Bern, NC 28562 Phone: 252.638.3119 Signature Date: -fir 6 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. I, ���huh g po JIotiV'� , a Notary Public for the State of l�ot�ih Cwroi+naa , County of -'oViG S , do hereby certify that personally appeared before me this 1077r day of ! oVA C A 1001 , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, ar P rrc Z on unt t m s ,onexpires c 02/07/2012 i C A RO���.�``� SEAL My commission expires 60107 /'70/'-_ Form SW40I-Wet Detention Basin O&M-Rev.4 Page 5 of 5