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HomeMy WebLinkAboutSW8051123_CURRENT PERMIT_20060208STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW &S/,� � DOC TYPECURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD WArF9p Michael F Easley, Governor G William G Ross, Jr, Secretary rn T� North Carolina Department of Environment and Natural Resources >_ O 'r Alan W Klimek, P E Director Division of Water Quality February 8, 2006 Mr Keith D Walker, President Fox Hollow Housing of Jacksonville, Inc Member/Manager of Fox Hollow Apartments, LLC 315 Turner Street Beaufort, NC 28516 Subject. Stormwater Permit No SW8 051123 Fox Hollow Apartments High Density Project Onslow County Dear Mr Walker The Wilmin ton Regional Office received a complete Stormwater Management Permit Application for Fox Hollow Apartments on February 7, 2006 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 SW8 051123 dated February 8, 2006 for the construction of the subject project This permit shall be effective from the date of issuance until February 8, 2016, and shall be subject to the conditions and limitations as specified therein Please pay special attention to the Operation and Maintenance requirements in this permit Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within sixty (60) days following receipt of this permit This request must be in the form of a written petition, conforming to Chapter 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) 796-7215 Sincerel r, 'C Edward Beck Regional Supervisor Surface Water Protection Section ENBlarl S IWQSISTORMWATIPERMIT1051123 feb06 cc David Newsom, P E , Crystal Coast Engineering Onslow County Building Inspections Linda Lewis Wilmington Regional Office Central Files North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 796 7215 Customer Servicel 877.623-6748 Wiimington Regional office Wilmington NC 28405 3845 FAX (910) 350 2004 Internet h2o enr state nc us One thCarollna An Equal Opportunity/Affirmative Action Employer— 50% Recycledl70% Post Consumer Paper JVatuW11Y State Stormwater Management Systems Permit No SW8 051123 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 Keith Walker, Fox Hollow Housing of Jacksonville, Inc, & Fox Hollow Apartments, LLC Fox Hollow Apartments Gum Branch Road, Jacksonville, Onslow 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 file with and approved by the Division of Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until February 8, 2006, 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 in Section 16 on page 3 of this permit The stormwater control has been designed to handle the runoff from 114,354 square feet of impervious 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 No allotment for future built -upon area has been made under this permit 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 7 State Stormwater Management Systems Permit No SW8 051123 6 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a DrainaArea, acres gnsite, 561 ft2 244,371 Offsite, ft 0 b Total Impervious Surfaces, ft2 114,354 c Design Storm, inches 1 d Pond Depth, feet 55 e TSS removal efficiency 90% f Permanent Pool Elevation, FMSL 3850 g Permanent Pool Surface Area, ft2 7,635 h Permitted Storage Volume, ft3 9,652 1 Temporary Storage Elevation, FMSL 3963 t Controlling Orifice 1 25" 0 pipe k Permitted Forebay Volume, ft3 4,103 1 Receiving Stream/River Basin New River 1 White Oak m Stream Index Number WOK02 19-1 n Classification of Water Body "C NSW' 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 Mowin.9 and revegetation of slopes and the vegetated filter d Immediate repair of eroded areas e Maintenance of all slopes in accordance with approved plans and specifications f Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping g Access to the outlet structure must be available at all times Page 3 of 7 State Stormwater Management Systems Permit No SW8 051123 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 Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria a The fountain must draw its water from less than 2' below the permanent pool surface b Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond c The falling water from the fountain must be centered in the pond, away from the shoreline d The maximum horsepower for a fountain in this pond is 118th horsepower 6 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 7 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 8 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 9 Access to the stormwater facilities shall be maintained via appropriate easements at all times 10 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 11 The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction 12 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction Page 4 of 7 State Stormwater Management Systems Permit No SW8 051123 13 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 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 Permit issued this the 8th day of February 2006 ;Ala R H CAROLINA ENVIRONMENTAL_ MANAGEMENT COMMISSION n nek, P E , Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No SW8 C51123 Fox Hollow Apartments Stormwater Permit No SW8 051123 Onslow County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the protect, (Project) for (Protect Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications The checklist of items on page 2 of this form is included in the Certification Noted deviations from approved plans and specification Signature Registration Number Date SEAL Page 6of7 State Stormwater Management Systems Permit No SW8 051123 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 drams 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 9 Vegetated slopes are no steeper than 3 1 10 The inlets are located per the approved plans and do not cause short- circuiting of the system 11 The permitted amounts of surface area and/or volume have been provided 12 Required drawdown devices are correctly sized per the approved plans 13 All required design depths are provided 14 All required parts of the system are provided, such as a vegetated shelf, and a forebay 15 The required system dimensions are provided per the approved plans cc NCDENR-DWQ Regional Office Onslow County Building Inspections Page 7 of 7 OFFICE USE ONLY Date Received Fee Paid Permit Number ' 1•r� �' � yG � �,84�� State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form mar he photos opted Jor uw as an o iginal I GENERAL INFORMATION Applicants name (specify the name of the corporation, individual, etc who owns the project) Fox Hollow Apartments, LLC 2 Print r er/Signing Official's name d title (person legally responsible for facility and compliance) P �� H�II�w �7U5r� � :Txksonvi /le 17c, MeM berg 14aa 2 er o P r-7--v h�&;L) 3 Mailing Address for person listed in item 2 above Z11A2y, 315 Turner St City Beaufort Telephone Number 252 ] 504-5424 State NC Zip 28516 4 Project Name (Subdivision, facility, or cstablishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc ) Fox Hollow Apartments 5 Location of Project (street address) Gum Branch Rd, between its intersection with Henderson Drive & its intersection with Western Blvd Ext City Jacksonville County Onslow 6 Directions to project (from nearest major intersection) From intersection of NC 24 & US 17, north on US 17 approx 2 8 miles to Gum Branch Rd Left on Gum Branch Rd Site is approximately 2 4 miles on nght 7 Latitude 340 47' 36" N Longitude 770 26' 6" W of project 8 Contact person who can answer questions about the project Name David K Newsom, PE (Crystal Coast Enpneenng, PA) T clephone Number ( 910 ) 325-0006 If PERMIT INFORMATION 1 Specify whether project is (check one) X New Renewal Modification Form SWU-101 Version 3 99 Page I of 4 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 Specity the type of project (check one) Low Density X High Density Redevelop General Permit Other 4 Additional Project Requirements (check applicable blanks) CAMA Major X Sedimentation /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 1 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 All stormwater emanating from impervious surfaces shall be collected and conveyed to a wet detention pond 2 Stormwater runoff from this project drains to the White Oak (New River) River basin 3 Total Project Area 561 acres 4 Project Built Upon Area 5 How many drainage areas does the project havev I 4690 % 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 Informationm _ =` Drama e Area 1 < g �ag� ' M t- f Drauf Area l Receiving Stream Name UT of New River Receiving Stream Class C,NSW Drainage Area 244,371 sf (5 61 ac) Existing Impervious* Area -0_ Proposed lmpt rvious*Area 114,354 sf % Impervious* Area (total) 46 80 % Imperyioi s* Sur=fac,e5Area Drainage Area I Drainage Area 2 On -site Buildings 47,340 sf On -site Streets On -site Parking 40,280 sf On -site Sidewalks 26,734 sf Other on-%tte Off -site -0- Total 114,354 sf Total * finperviow area is defined as the bralt upon area inchiding but not limited to, budding, , ioads parking areas, sideivalkv gavel areas ere Forin SWIJ-101 Version 3 99 Page 2 of 4 7 How was the off -site impervious area listed above derived? NIA 1V DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be records d 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 I The following covenants are intended to ensure ongoing compliance �i ith state stormwater management permit number us issued bi, the Division of 1Vater Quality These covenants may not be changed or deleted without the cogent of the State 2 No more than squaie feet of am lot shall be covered bi, structures or inipen,tous materials Impervious malenals include asphalt, gravel, concrete, brick stone, slate of similar mateital but do not include snood decking or the writer surface of swimming pools 3 Sivales shall not be filled in, pipedd, or altered except as necessary to provide di ivewah crossings 4 Built -upon area in excess of the permitted amount tequires a state stormwater management permit modification piior to construction 5 Allpeinutted runofffiom outparcels or fitture development shall be directed into the petnutted stormwater contiol 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 appitcable 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 forni(s) listed below must be submitted for each BMP ,pccified for this project Contact the Stonnwater 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 Page 3 of 4 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 Please indicate that you have provided the following required information by initiating in the space provided next to eac,li item Initials • Original and one copy of the Stormwater Management Permit Application Form QrAl • 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, fini,,hcd 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, st7e4, 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) Crystal Coast Engineering, PA Mailing Address 3817-3 Freedom Way City Hubert Phone L 910 1 325-0006 State NC Zip 28539 Fax ( 910 ) 325-0060 VIII APPLICANT'S CERTIFICATION 1, (print or type name of person listed in General Information, item 2)�_�,�(,� certify that the inforination 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 protectivelqcoyenants will b recorded, and that the proposed project complies with the requirements of 15A NCAC 2 1 -1 1040 1 1 n Signature Form SVLJ-101 Version 3 99 Page 4 of 4 Date ) l 3 u Permit No (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form may be photocopied for use as an of rginal DWQ Stormwater Management Plan Review 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 Fox Hollow Apartments, LLC Contact Person David K Newsom, PE, Crystal Coast Engineenng, PA Phone Number ( 910 ) 325-0006 For projects with multiple basins, specify which basin this worksheet applies to 1 elevations Basin Bottom Elevation 3300 ft (floor of the basin) Permanent Pool Elevation 3850 ft (elevation of the of afa'ce) Temporary Pool Elevation 3963 ft (elevation of the discharge structure overflow) ar ens Permanent Pool Surface Area 7,635 sq ft (water surface area at the orifice elevation) Drainage Area 561 ac (on -site and off -site drainage to the basin) Impervious Area 262 ac (on -.sate and off -we drainage to the basin) volumes Permanent Pool Volume 19,037 cu ft (combined volume of main basin andforebay) Temporary Pool Volume 9,652 cu ft (volume detained aboi e the permanent pool) Forebay Volume 4,103 cu ft (appitoximately 20% of total volume) Other parameters SA/AA t 2 900 (surface area to drainage area ratio from DWQ table) Diameter of Orifice 1 25 in (2 to 5 day temporary pool draw -down required) Design Rainfall 1" in Design TSS Removal 2 90 % (minimum 85% required) Fon n S W U-102 Rev 3 99 Page 1 of 4 Footnotes I When using the Division SA/DA tables, the coned SA/DA iatio for permanent Pool sinng should be computed hatred upon the actual impervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non- standard table entries 2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide 90% 1 SS removal I he NCDFNR BMP manual provides design tables for both 85% I SS iemovai and 90% TSS removal II 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 Stonnwater Management Permit Application Form, the agent may initial below If a requirement has not been met, attach justification. Applicants nitials a The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet) ,EGG b The torebay 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) f The basin length to width ratio is greater than 3 1 g The basin side slopes above the permanent pool are no steeper than 3 1 h A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail) L i Vegetative cover above the permanent pool elevation is specified j A trash rack or similar device is provided for both the overflow and orifice k A recorded drainage easement is provided for each basin including access to nearest right- of-way 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 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 not incorporate a vegetated filter at the outlet This system (check one) 0 does#ees s not incorporate pretreatment other than a forebay. Form SWLI-102 Rev 3 99 Page 2 of 4 Maintenance activities shall be performed as follows I 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 a 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 When the permanent pool depth reads Sediment Removal Ei 34 38 Bottom Elevation 3300 FOREBAY 75 ado 4 t3 feet in the main pond, the sediment shall be removed 413 feet in the forebay, the sediment shall be removed BASIN DIAGRAM (fall in the blanks) Permanent Pool Elevation 38 50 Sediment Removal Elevation 34 38 t75% Bottom Elevation 33 00 25% / MAIN 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 ronn S W U-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 Title Address 315 Turner Street Phon, Signe Date Mote The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a esident of the subdivo ton has bL(.n named the pi esident 1, , a Notary Public for the State o UL77> &w� County of , do hereby certify that personally appeared before me this . L3 day of / c:96LS, and acknowledge the due execution of the forgoing wet detention basin maintenance requirements Witness my hand and official seal, Buzz 'A.,,,'A PUBUG CJ SEAL My commission expires Form SWU-102 Rev 3 99 Page 4 of 4 State Stormwater Management Systems Permit No SW8 051123 Fox Hollow Apartments Stormwater Permit No SW8 051123 Onslow County Designer's Certification as a duly registered the State of North Carolina, having been authorized to observe (penndic.alhr/ weekly/ full time) the construction of the project, (Project) for/(Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications The checklist of items on page 2 of this form is included in the Certification Noted deviations from approved plans and specification Signature Registrati Date , R-E�CT,;-11Vn)E) BY. FEB 1 1 2010 Page 6 of 7 i ,4 State Stormwater Management Systems Permit No SW8 051123 Certification Requirements .j1' The drainage area to the system contains approximately the permitted acreage /L,&tf!�2' The drainage area to the system contains no more than the permitted amount of built -upon area /fir jZl 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 15 The outlet/bypass structure elevations are per the approved plan 4 The outlet structure is located per the approved plans ozkZI Trash rack is provided on the outlet/bypass structure /UQZ9 All slopes are grassed with permanent vegetation I Vegetated slopes are no steeper than 3 1 10 The inlets are located per the approved plans and do not cause short- circuiting of the system 1 The permitted amounts of surface area and/or volume have been provided La�2 Required drawdown devices are correctly sized per the approved plans All required design depths are provided �+Vl4 All required parts of the system are provided, such as a vegetated shelf, and a forebay / 5 The required system dimensions are provided per the approved plans cc NCDENR-DWQ Regional Office Onslow County Building Inspections Page 7 of 7