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HomeMy WebLinkAboutSW7070626_CURRENT PERMIT_20070910STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW l��la DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE &?Z/ 2 YYYYMMDD re wlok:� Michael F. Easley, Governor William G. Ross Jr, Secretary North Carolina Department of Environment and Natural Resources September 10, 2007 Mr. Zachary Taylor P.O. Box 12006 New Bern, NC 28561 Subject: Permit No. SW7070626 Zack Taylor Commercial Complex High Density Stormwater Project Craven County Dear Mr. Taylor: Coleen H. Sullins, Director Division of Water Quality The Washington Regional Office received a completed Stormwater Application for the subject project on June 22, 2007. 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. SW7070626 dated September 10, 2007 to Zachary Taylor for the construction and operation of a wet detention pond to serve the proposed Zack Taylor Commercial Complex located on McCarthy Boulevard Extension in New Bern, NC. This permit shall be effective from the date of issuance until September 10, 2017 and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements; or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 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 Roger Thorpe or me at (252) 946-6481. ' ncerely� Al Hodge, Regional Supervisor Surface Water Protection Section Washington Regional Office cc: Avolis Engineering, P.A. City.of New Bern Inspections L,�IVashington Regional Office Central Files North Carolina Division of Water Quality, Internet: �ncm n<�wtergualiic.� rry 943 Washington Square Mall Phone (252) 946-6481 Washington, NC 27889 Fax 12521946.9215 NorthiCarolina Naturally i State Stormwater Management Systems Permit No. SW7070626 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 Zachary Taylor CRAVEN COUNTY FOR THE construction, operation and maintenance of stormwater management systems in compliance with the provisions of 15A NCAC 21-1.1000 (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 a wet detention pond to serve the proposed Zack Taylor Commercial Complex located on McCarthy Boulevard Extension in New Bern, NC. . This permit shall be effective from the date of issuance until September 10, 2017 and shall be subject to the following specified conditions and limitations: 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 2 of this permit, the Project Data Sheet. 3. A maximum of 55,974 square feet of built upon area is allowed on this 2.13 acre site. 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 approved plans. 5. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. DIVISION OF WATER QUALITY PROJECT DATA Project Name: Zack Taylor Commercial Project Permit Number: SW7070626 Location: Craven County Applicant: Zachary Taylor Mailing Address: P.O. Box 12006 New Bern, NC 28561 Application Date: 6/22/2007 Receiving Stream: UT to Wilson Creek Classification of Water Body: C-SWP-NSW Total Site Area: 2.13 ac Drainage Area to Basin: 2.13 ac Total Impervious: 1.28 ac Pond Depth: 6.0 feet Required Storage Volume: 4,562 cf Provided Storage Volume: 5,903 cf Required Surface Area: 3,164 sf Provided Surface Area: 5,236 sf Controlling Orifice: 1.25 in @ elev. 94.5 ft A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of the project. 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). 3. The issuance of this permit does not preclude the Permittee from complying with any and ail 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. 6. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for an extension along with appropriate application fee. Permit issued this the 10 th day of September, 2007. 7TH C OLIIN ENVIRONMENTAL MANAGEMENT COMMISSION 7&� _ Coleen H. Sullins Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7070626 Zack Taylor Commercial Complex — Craven County Stormwater Permit No. SW7070626 Designer's Certification 1, , 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 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 Certification Requirements: _1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. _3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. _5. The outlet/bypass structure elevations are per the approved plan. _6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. _8. All slopes are grassed with permanent vegetation and 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/or volume have been provided. 11. All required design depths are provided. 12. Required drawdown devices are correctly sized per the approved plans. 13. All required parts of the system are provided, such as a vegetated shelf, forebay and vegetated filter if required. _14. The required system dimensions are provided per the approved plans. AVOLIS ENGINEERING, P.A. P.O. Box 15564 • New Bern, North Carolina 28561 • (252) 633-0068 July 2, 2008 Mr. Al Hodge Environmental Engineer NCDENR - Water Quality Section 943 Washington Square Mall Washington, NC 27889 RE: Permit No. SW7070626 rig JUL U 7 2008 I,� ��.11l :k�Y1 rt�l• Zack Taylor Commercial Complex McCarthy Boulevard Extension, New Bern, Craven County, North Carolina AE Project No. 07054 Dear Al: Enclosed please find our Engineer's Certification of the wet detention pond installed for the above -referenced project consisting of the following: Engineer's Certification (Final) Should you have any questions relating to this matter or need any additional information or assistance, please do not hesitate to call. Sincerely, r Avolis, P.E. President cc: Mr. Zack Taylor k, Zack Taylor Commercial Complex - Craven County Stormwater Permit No. SW7070626 Designers Certification I, John Kevin Avolis 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, Zack Taylor Commercial Complex (Project) for Zachary Taylor - (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 con truction was`0S C edi�p� be built within substantial compliance and intent of the approved and specif ions. ��P(H At? Signature �O SEAL Registration Num er 15?�E s 357ae Date V Certification Requirements: �i�FVIINP '0`'� 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 4. All roof drains are located such that the runoff is directed into the system. olf 5. The outlet/bypass structure elevations are per the approved plan. C ( 6. The outlet structure is located per the approved plans. a 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation and 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/or volume have been provided. W 11. All required design depths are provided. 12. Required drawdown devices are correctly sized per the approved plans. (Z�J_13. All required parts of the system are provided, such as a vegetated shelf, forebay and vegetated filter if required. c 14. The required system dimensions are provided per the approved plans. DWQ-VVARO State of North Carolina --:SVJ -C.K 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 ' GENERAL INFORMATiON 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Zack Tavlor 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Zack Taylor, Owner " 3. Mailing Address for person listed in item 2 above: P.O. Box 12006 City: New Bern State: NC Zip: M561 Telephone Number: ( 252 ) 633-5106 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Zack Taylor Commercial Complex 5. Location of Project (street address): McCarthy Boulevard Extension City: New Bern County: Craven 6. Directions to project (from nearest major intersection): From intersection of U.S. Highway 17 and McCarthy Boulevard travel south approximately 500 feet. Project site is on left 7. Latitude: N350 5.850' Longitude:_Wl7° 5.642' of project 8. Contact person who can answer questions about the project: Name: Zack Taylor Telephone Number: ( 252 ) 633-5106 II. PERMIT INFORMATION: 1. Specify whether project is (check one): X New Renewal Modification Form SWU-101 Version 3.99 Page 1 of 4 �'%.,11 pu�,4 I�Vfi? _k 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 �Sedimenta[ion/Erosion Control _404/401 Permit _NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION I. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project . See attached narrative. 2. Stormwater runoff from this project drains to the Neuse River basin. 3. Total Project Area: 2.13 acres 4. Project Built Upon Area: 59_ A % 5. How many drainage areas does the project have? 1 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name Wilson Creek Receiving Stream Class C, Sw, NSW Drainage Area 2.13 AC Existing Impervious' Area 0 Proposed Impervious' Area 55,974 SF 1.2B AC Impervious Area (total) 59.8% Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings 20,933 SF On -site Streets None On -site Parking 33,401 SF On -site Sidewalks 1 , 640 SF Other on -site None Off -site None Total'. 55,974 SF, 1.2 AC Total: __ __ - ­_- ..r "a'=. nn..uu„tg, out not nmirea to, ouimings, roads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 3.99 Paget of 7. How was the off -site impervious area listed above IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment. 1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality. -These covenants may not be changed or deleted without the consent of the State. 2. No more than 55,974 square feet of any lot shall be covered by structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood decking or the water surface of swimming pools. 3. Shales , -,„all not be ,`,;led L;, piped, cr a;tered CALept as necessary to provide urn-eway 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 storm water control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form SWU-101 Version 3.99 1Page 3 of VI. 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. 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. Initials • Original and one copy of the Stormwater Management Permit Application Form _ fni One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of $420 (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 areas delineated - Vegetated buffers (where required) VII. 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): Avolie Engineering, P.A. Mailing Address:_ P.O. Box 15564 City: New Bern Phone:( 252 ) 6 3-0060 Vill. APPLICANT'S CERTIFICATION State: NC Fax: ( 252 ) 633-6507 28561 I, (print or type name of person listed in General Information, itern 2) Zack Taylor 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 r�,ccrde an NCAC 2H .1000. Orthat the proposed project complies with the requirements of I SA _ %/ // // Date:_ /5V 07 Form SWU-lot Version 3.99 Page 4 of Permit No. (to be provided br Dn'Q) State of North Carolina Department of Environment and Natural Resources Division of Water Quality 9�LMER C'l E® STORMWATER MANAGEMENT PERMIT APPLICATION FORM �l JUN 2 2 2001 WET DETENTION BASIN SUPPLEMENT //�� This form may he photocopied for use as an original D V1M1I'Q-{ry{y yAR® D\1'0 Stormcvater Management Plan Review: c A complete stormwater management plan submittal includes an application form, a vvet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details. 1. PROJECT INFORMATION Project Name: Zack Taylor Commercial Complex Contact Person: Zack Taylor Phone Number. (252 ) 633-5106 For projects with multiple basins, specify which basin this v,orksheet applies to: 1 clerations (Assumed) Basin Bottom Elevation Permanent Pool Elevation TemporanPool Elevation arenr 88,5 ft. 94.5 ft. 95.6 ft. (floor of the basin) We) of the orifice) (elevation of the discharge structure overflow) Permanent Pool Surface Area 5,236 sq. ft. (crater surface area at the orifice elevation) Drainage Area 2.13 ac. (on -site and off -site drainage to the basin) lmpen ious Area I. ac. (on -sire and off -site drainage to the basin) volumes Permanent Pool Volume 15, 526 cu. ft. (combined volume of main basin and forebay) Temporary Pool Volume 5,903 cu. ft. (volume detained above the permanent pool) Forebay Volume 3, 570 cu. ft. (approximately 20% of total volume) Other parameters S A/DA t Diameter of Orifice Design Rainfall Design TSS Removal '- 3.38 f�_'b� 1 in. 90 % (surface area to drainage area ratio fr o n DWO table) (? to 5 day temporary pool draiv-docrn required) (mininunn 85% required) Form Swu-lot Rev 3.99 Nee 1 of 4 r` Footnotes: When using the Division SAIDA tables, the correct SAIDA 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 Bh1P manual provides design tables for both 95% TSS removal and 90°% TSS removal. 11. 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 Stormxvater Management Permit application Form, the agent may initial below. If a requirement has not been met, attach justification. Applicants Initials Ch a, The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). gb b. The forebay volume is approximately equal 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) d f. The basin length to width ratio is greater than 3: I. Gi g. The basin side slopes above the permanent pool are no steeper than 3: 1. d h. A submerged and vegetated perimeter shelf with a slope of 6: l or less (show detail). d i. Vegetative cover above the permanent pool elevation is specified. e4 j. A trash rack or similar device is provided for both the overflow and orifice. 4►% k. .A recorded drainage easement is provided for each basin including access to nearest right- of-way. 1 I. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. m. A mechanism is specified which will drain the basin for maintenance or an emergency. Ill. NVET 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) R7tC OCdoes not incorporate a vegetated filter at the outlet. This system (check one) QXDM (Xdoes not incorporate pretreatment other than a forebay. Form SWU-102 Rev 3.99 Page 2 of Maintenance activities shall be performed as follows: 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. :. Inspect and repair the collection system (i.e. catch basins, piping, wales, 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 trill 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 4. 5 feet in the main pond. the sediment shall be removed. \\ hen the permanent pool depth reads 4.5 feet in the forebay. the sediment shall be removed. BASIN DIACR.411 (fill in the blanks) 17 Permanent Pool Elevation 94. 5 Sediment Re ozal El. 90.0 fi ,o ------------ - Sediment Removal Elevation 90.0 logo Bonom Election 88.5 1 % --------------------------------------- - Bonom Elezation f38 - S 3 25% FOREBAY \1A11 POND 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. Fort S\CU-102 Rev 3.99 Pace 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 DNVQ of any problems with the system or prior to any changes to the system or responsible party. Print name: Zack Taylor Address: P.O. Box 12006 New Bern NC 2B561 Phone: (252)633-,4106 /J Signature The legally responsible party should not be a homeowners association unless more than .%' 6 of the lots have been sold and a resident of the subdi%ision has been named the president. I. Beth Simmons a Notary Public for the State of North Carolina County of Craven do hereby certify that Zack Taylor personally appeared before me this I day of i �� 2�� , and acknov, ledge the due execution of the forgoing tvet detention basin maintenance requirements. Witness my hand and official seal. SEAL \4y commission expires April 22, 2009 Form SwU-102 Rev 3.99 Nee 4 of 4