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HomeMy WebLinkAboutSW8120114_CURRENT PERMIT_20120723STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW 75 �BC1JG`� DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE wa�3 YYYYMMDD 7i2p NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman Governor Director Secretary July 23, 2012 Mr. Richard Flowers, President Flowers Development Corporation 212 Bayview Blvd. Atlantic Beach, NC 28512 Subject: State Stormwater Management Permit No. SW8 120114 Flowers Development Corporation High Density Commercial Wet Detention Pond Project Carteret County Dear Mr. Flowers: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Flowers Development Corpation on July 20, 2012. 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 and Session Law 2008-211. We are forwarding Permit No. SW8 120114 dated July 23, 2012, for the construction, operation and maintenance of the BMP's and built -upon areas associated with the subject project. This permit shall be effective from the date of issuance until July 23, 2020, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions, to transfer the permit, or to renew the permit, 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 by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within thirty (30) days of receipt of this permit. You should contact the OAH with all questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at www.NCOAH.com. 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 Christine Nelson, at (910) 796-7215. Sincerely, 9� Charles Wakild, P.E., Director Division of Water Quality GDS/can: S:IWQS1Stormwater\Permits & Projects120121120114 HD12012 07 permit 120114 cc: Susan Sayger, KSMJ Engineering. Town of Morehead City Building Inspections Wilmington Regional Office Stormwater File Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One Phone: 910-796.72151 FAX: 910-350-20N k DEN Assistance: 1-877-623-6748 NorthCarofina Internet: www.ncwaterquality,org a']���N��`/� An Equal Opportunity 1 Affirmative AOan Employer �/ y i State Stormwater Management Systems Permit No. SW8 120114 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY COMMERCIAL 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 Flowers Development Corporation Flowers Development Corportation 310 Friendly Rd, Morehead City, Carteret County FOR THE construction, operation and maintenance of one (1) wet detention pond in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter collectively referred to as the "stormwater rules`) 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 July 23, 2020, 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 1.8 of this permit. The stormwater control has been designed to handle the runoff from 117,333 square feet of impervious area. 3. A 50' wide vegetative buffer must be provided and maintained adjacent surface waters, measured horizontally from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of streams and rivers and the mean high water line of tidal waters. 4. A vegetated filter strip is not required for this pond as it has been designed for a total suspended solids removal efficiency of 90%. 5. The tract will be limited to the amount of built -upon area indicated in this permit, and per approved plans. No built -upon area for future development has been allocated within the pond drainage area. 6. 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. Paqe 2 of 7 State Stormwater Management Systems Permit No. SW8 120114 7. The runoff from all built -upon area within the permitted drainage area(s) of this project must be directed into the permitted stormwater control system. 8. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, ?cres: 3.89 Onsite, ft : 169,448 Offsite, ft2: none b. Total Impervious Surfaces, ft2: 117,333 Onsite, ft : 117,333 Offsite, ft2: none C. Design Storm, inches: 1.5 d. Average Pond Design Depth, feet: 4.5 e. TSS removal efficiency: 90% f. Permanent Pool Elevation, FMSI�: 16.5 9. Permanent Pool Surface Are, h. Permitted Storage Volume, ft: 15,247 i. Temporary Storage Elevation, FMSL: 17.85 j. Pre-dev. 1 yr-24 hr. discharge rate, cfs: 2.88 k. Controlling Orifice: 2.0" O pipe I. Orifice flowrate, cfs: 0.20 M. Permanent Pool Volume, ft3: 32,854 n. Permitted Forebay Volume, ft3: 5,838 o. Fountain Horsepower 1/8 p. Receiving Stream/River Basin: Peltier Creek I White Oak q. Stream Index Number: 20-36-11 r. Classification of Water Body: "SB" 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 signed and approved Operation and Maintenance Agreement must be followed in its entirety and maintenance must occur at the scheduled intervals. 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 118 horsepower. Paae 3 of 7 State Stormwater Management Systems Permit No. SW8 120114 6. The facilities shall be constructed as shown on the approved plans. This permit shall become void 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 for inspection and maintenance shall be maintained via appropriate recorded 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. Redesign or addition to the approved amount of built -upon area or to the drainage area. C. Further development, subdivision, acquisition, lease or sale of any, 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. d. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. Prior to the construction of any permitted future areas shown on the approved plans, the permittee shall submit final site layout and grading plans to the Division for approval. 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. 13. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. Ill. GENERAL CONDITIONS This permit is not transferable to any person or entity except after notice to and approval by the Director. At least 30 days prior to a change of ownership, or a name change of the permittee or of the project, or a mailing address change, the permittee must submit a completed and signed Name/Ownership Change Form to the Division of Water Quality, accompanied by the supporting documentation as listed on the form. The approval of this request will be considered on its merits and may or may not be approved. Pacie 4 of 7 State Stormwater Management Systems Permit No. SW8 120114 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Neither the sale of the project in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the stormwater permit. 3. Any individual or entity found to be in noncompliance with the provisions of this storrmwater management permit or the requirements of the Stormwater rules is subject to enforcement procedures as set forth in G.S. 143 Article 21. 4. 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. 5. In the event that the facilities fail to perform satisfactorily, 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. 6. 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. 7. The permit remains in force and effect until modified, revoked, terminated or renewed. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re - issuance or termination does not stay any permit condition. 8. 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. 9. The permittee shall submit a permit renewal request at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate documentation and the processing fee. Permit issued this the 23rd day of July, 2012. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION canaries akiia, r.t., uirector Division of Water Quality By Authority of the Environmental Management Commission Paqe 5 of 7 State Stormwater Management Systems Permit No. SW8 120114 Flowers Development Company Stormwater Permit No. SW8 120114 Carteret_ 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 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 specifications: Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No. SW8 120114 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 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 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 and located 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. 16. All components of the stormwater BMP are located in either recorded common areas, or recorded easements. cc: NCDENR-DWQ Regional Office Town of Morehead City Building Inspections Paqe 7 of 7 DWQ USE ONLY Date Received Fee Paid Permit Number �� �/ Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Constru Lion (select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original 1. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): _ o%J4�� -V6 t-of M6-rj7-- Coe,poZ_ ^a 2. Location of Project (street address): JdO 621&120L Y ROA 12-! City: '(gore tt&n a CA r'7 County: Zip: Z 8 55 Z 3. Directions to project (from nearest major intersection): 4. Latitude: 3/4 ° � 3 ' `i 5 " N Longitude: 76 ° 45 ' 5 9 " W of the main entrance to the project. II. PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New ❑Modification b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number , its issue date (if known)� ,, and the status of construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's certification 2. Specify the type of project (check one): ❑Low Density KHigh Density ❑Drains to an Offsite Stormwater System ❑Other If this application is being submitted as the .result of a previously returned application or a letter from DWQ requesting a state stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major Sedimentation/Erosion Control:_ ac of Disturbed Area ❑NPDES Industrial Stormwater []404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit: JAN 31 2012 DEC ;4(2011 Form SWU-101 Version 07Jun2010 Page 1 of G ' 4 II1.' CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the project}: Applicant/ Organization: o%n/ 6Z S L✓cJE- o GO R f'OR �� trrc, Signing Official &Title: � ?'-Za-T C�� H-f b.Contact information for person listed in item 1a above: Street Address:_ 21 Z. 3h'� V 15 \J L-.JL-,-). City: A.T'. A o Tic State: t•3G zip.T Mailing Address (if applicable) -. City: State: Zip: Phone: Fax: -- - ] c. Please check the appropriate box. The applicant listed above is: The property owner (Skip to Contact Information, item 3a) Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below.) 2.a,Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Signing Official & Title: b.Contact information for person listed in Street Address: City: Mailing Address city:�� cable): 0 State: Zi: State: Zip: Fax: ( } JAN 31 2012 3. a. (Optional) Print the name and title of another contact such as the project's construction su or or other person who can answer questions about the project: Other Contact Person/Organization: Signing Official & Title:, b.Contact information for Mailing Addr_eW._-----� listed in item 3a above: DE C', 2011 State: Zi Form SWIJ-10i Version 07Jun2010 Page 2 of 7 7 'Phone: ( } Fax: Email: 4. Local jurisdiction for building permits: Point of Contact: Phone #: IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. o& Ll-. 4o,�3 o ter= i S VIA Ol &-e— c. A ri rr-a vwvj ,Iry 3 i 1L 2 P Frtz C> i NT-0 D r2-6- a?lln)_IDyw,� 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: OrL+�cc ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b, if claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW -1995 ❑ Ph II - Post Construction 3. Stormwater runoff from this project drains to the %J%�ap,_ River basin. 4. Total Property Area: acres 5. Total Coastal Wetlands Area: acres 6. Total Surface Water Area: acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area*: acres Total project area shall be calculated to exclude the followin : the normal pool of impounded structures, the area between the banks of strearns and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) Iine, and coastal wetlands landward from the NNW (or MHVline. The resultant project area is used to calculate overall percent built upon area (BETA). Non -coastal wetlands landward of the NHW (or MHW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 9. How many drainage areas does the project have?--.L (For high density, count 1 for each prop ed engine red Stormwater BMP. For low density and other projects, use 1 for the whole properhj area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. JAN 8 Y 201Z Form SWU-101 Version 07Jun2010 Page 3 of Basin Information Drainage Area Drainage Area Drainage Area _ Drainage Area _ Receiving Stream Name Peltier Creek Stream Class * SB Stream Index Number * 20.36-11 Total Drainage Area (so 169448 On -site -Drainage Area (so 169448 Off -site Drainage Area (so Proposed Impervious Area*" (sq 117333 % Impervious Area"* total (a9 • a % Impervious** Surface Area Drainage Area _ Draina e Area _ Drainage Area _ Drainage Area On -site Buildings/Lots (sf) 30 i TO On -site Streets (so -3,3 0 ' 0 On -site Parking (sf) On -site Sidewalks (so Other on -site (so Future (so Off -site (so Existing BUA*** (so 54153 Total (sf): 117333 Stream Class and Index Number can be detennined at: Iittp. portal.itederzr.orgfwebfwq[ps/cstt/classi cations Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. 'Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that is to be removed and which will be replaced hj new BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. Projects in Union County: Contact DWQ Central Office staff to check if the project is loca 0ftpn'm rreatened & Endangered Species watershed that may be subject to more stringent stormwater re uiremepn asI 2B .0600. V. SUPPLEMENT AND O&M FORMS By 'IN 3 12012 The applicable state stormwater management permit supplement and operation an tenance (O M) forms must be submitted for each BMP specified for this project. The latest versions of the forms d nloaded from ht!p://Vortal.ncdenr.org/webZwgZws/su/bmp-manual. 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. A detailed application instruction sheet and BMP checklists are available from hqR://portal.ncdenr.orglweb/wq/ws/`su/statesw/forms docs. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at httl2://12ortal.ncdenr.org/webZwQZws/su/mat)s.)C� Please indicate that the following re aired information have been -provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from h2p://porLal.nedenr.org/web/wq/ws/su/statesw/forms does. Initials 1. Original and one copy of the Stormwater Management Permit Application Form, 2. Original and one copy of the signed and notarized Deed Restrictions.&'Protective Cove ants Form. (if required as per Part VII below) 1__' 3. Original of the applicable Supplen3ent Form(s) sealed signed and dated and&M agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to http://www.envhelp.org/pages/onestopexpress.htmI for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) Form SWU-101 Version 07Jun2010 Page 4 of 9 - - � k T .. ' _ _ .'� .. _. • .� s ` ,�- t ti, T � , t 1 1 , •� 4 ;� i. - � , � ✓ � . - � � , � ! • A • . ' ! � • . � � • a � ♦ . f • • . 5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1/2 mile radius on the map. 7. Sealed, signed and dated calculations. 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: a. Development/Pro' t name. b. Engi�er and � c. Location with named streets end NCSR numbers. d. Legend:' e. North, -Arrow. f. Scaje: g. Revisio"umber and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW tines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i i. Dimensloned property/project boundary with bearings & distances.G �012 j. Site Layou�with all BUA iden� end dimensioned. N 31 k.. Existing contours, proposed �ntours, spot ele►ans, finished �evations. gyp` 1. ` Details of r ads, drainage feefures, collection system s, and stormwater cotSUol measures in. Wetlands deli"d, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing dram (including off -site), drainage easements, pipe sizes, runoff calculations. o. Drainage ar s delineated (included in the main set of plans, not as a separate document). p. Vegetatesbuffers (where required). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xl1" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHWT prior to subruittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: Page No:� 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item 1a, 2a, and/or 3a per NCAC 2H.1003(e). The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned. ht!p://www.secretaEy.state.nc.us/Corporatiorts/CSearr-h.asiRx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any Lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from http://portal.ncdenr.org/web/wgZws/su/statesw/forms docs. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required i i-id I�i� ' on the forms available on the website, that the covenants will be binding on all parti an pe eon`s claimutg under them, that they will run with the land, that the required covenants cannot be c ange j-� r� l ted0j) without concurrence from the NC DWQ and that they will be recorded prior to the sae of 1 16t. Form SWU-101 Version 07Jun2010 Page 5 of \ w V II). CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional inknation). Consulting Engineer: Consulting Firm: J 5 ftrJ CJ a c r PC, Mailing Address: ' 2V `lam�!- City: t�A `rt"vc. %4 State: k) 6— Zip: Z-9 5 3 -:?— Phone: ( 2'5 2 ) "t "- 5 I-eo ':� Fax: ( Email: _ K.SM 1 _, c� ti n e e. rt•2!!k _ �9 m X L t. C u +� U IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) 1, (print or type name of person listed in Contact Information, item 2a) certify that 1 v own the property identified in this permit application, and thus give permission to (print or hjpe name of person listed in Contact Information, item Ia) with (print or hjpe narne of organization listed in Contact Information, item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6. Date: I, , a Notary Public for the State of , County of do hereby certify that personally appeared before me this _ day of , and acknowledge the due execution of the application for a stormwater permit Witness my hand and official seal, SEAL My commission expires JAN 31 zm Form SWU-101 Version 071un2010 Page 6 of 7 ,) �'' � i r.r r �. t� r X. ' APPLICANT'S CERTIFICATION I, (print or hjpe name of person listed in Contact Information, item la) 12 ' C • �- `� .N tr�'.� 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 wilt be recorded, and that the proposed project complies with the requirements of the applicable sterrn'Vater rules under 15A NCAC 2H .1.000, SL 2006-246 (Ph. II - Post Construction) or SL 2005-211. Signature: Date: 12 — ip l J J I, a Notary Public for the State of County of do hereby certify that Zitrec� L .;0��� personally appeared before me this day of D/ and acknowledge the due xecution of the application for a stormwater permit. Witness my hand and official seat, SEAL My commission expires�-- Form SWU-101 Version 07Jun2010 Page 7 of 7 I .' � _t - .. r ./ "`. � ... i s ' � r �� �, Permit No. JW V IKo 114 (to be provided by DWO) 1 NCDENR o�oF w.or�,S,QG o -c STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checidist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name Flowers Development Corporation Contact person AI Gold, PE/Sue Sayger,PE Phone number 252-5604652, 252-349-5803 Date December 12.2011,January 22, 2012,March 2012,June 2012 Drainage area number 1 II. DESIGN INFORMATION Site Characteristics Drainage area Impervious area, post -development % impervious Design rainfall depth Storage Volume: Nan -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters 1.5" runoff volume Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the prelpost control of the lyr 24hr storm peak flow required? 1-yr, 24-hr rainfall depth Rational C. pre -development Rational C, post -development Rainfall intensity:1-yr, 24-hr storm Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx. at the perm. pool elevation) Top of 10ft vegetated shelf elevation Bottom of 1 Oft vegetated shelf elevation Sediment deanout, tap elevalion (bottom of pond) Sediment deanout, bottom elevation Sediment storage provided Is there additional volume stored above the state -required temp. pool? Elevation of the top of the additional volume 169,448 ft2 117,3331' 69.24 % 1.5 in 14,259 ft3 15,247 it' ft3 it it ft3 ft3 (Y or N) 3.7 in OK OK, volume provided is equal to or in excess of volume required. 0.20 (unitiess) 0.62 (unilless) 3.66 inlhr OK 2.88 ft3lsec 1.68 ft3lsec 1.20 ft3lsec 17.85 fmsl 16.50.fmsl 17.00 fmsl 17.00 fmsl 16.00 fmsl 9.55 fmsl 8.55 fmsl 1.00 ft n (YorN) 17.9 fmsl OK Form SW461 Mot Detention Basin-Rev.8-9117l09 Parts I. & It. Design Summary, Page 1 or 2 Permit No. (to be provided by O WO) g. DESIGN INFORMATION Surface Areas Area, temporary pool Area REQUIRED, permanent pool SAIDA ratio Area PROVIDED, permanent pool, A,—_po Area, bottom of 10ft vegetated shelf, Ab,_,hd Area, sediment deanout, top elevation (bottom of pond), Ab Lp w Volumes Volume, temporary pool Volume, permanent pool, V.-P.- Volume, forebay (sum of forebays if more than one forebay) Forebay % of permanent pool volume SAIDA Table Data Design TSS removal Coastal SAIDA Table Used? Mountain/Piedmont SAIDA Table Used? SAlDA ratio Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 1 D-2b) Volume, permanent pool, V-11 . Area provided, permanent pool, Ave ,, m Average depth calculated Average depth used in SAIDA, d_ (Round to nearest 0.5ft) Calculation option 2 used? (See Figure 10-2b) Area provided, permanent pod, A, , _,d Area, bottom of 10ft vegetated shelf,c Area, sediment deanout top elevation (bottom of pond), Awu „6 12,514 f? 9,201 fF 5.43 (unitless) 9,206 OK 7,312 1,867 it' 15,247 ft" 32,854 ft' 5$5B '",Qft' 1n.4 `64 % 90 % y (Y or N) n (YorN) 5.43 (uniiless) n (Y or N) 32,854 ft' 9,206 ft 4.50 ft 4.5 ft y (Y or N) 9,206 ft 7,312 ft' 1,867 ft' 'Depth" (distance b/w bottom of tOft shelf and top of sediment) 6.45 ft Average depth calculated 4,50 It Average depth used in SAIDA, d,V, (Round to nearest 0.5ft) 4.5 It Drawdown Calculations Drawdovm through orifice? Diameter of orifice (if circular) Area of orifice (if -non -circular) Coefficient of discharge (Co) Driving head (Ho) Drawdown through weir? Weir type Coefficient of discharge (Cr) Length of weir (L) Driving head (H) Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Storage volume discharge rate (through discharge orifice or weir) Storage volume drawdown time Additional information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of flowpath to width ratio Length to width ratio Trash rack for overflow & orifice? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Drain mechanism for maintenance or emergencies is: Form SW401-Wet Detention Basin-Rev.0-9117/09 ( Tyr N 2.00 in 0.60 (unitless) 0,40 ft (Y or N) (unitless) (unitless) ft ft 2.88 ft3lsec 14.58 ft'Isec c0.20.ft3/sec 2.40 dal OK CO 7/0/aolla OK CA 741411a0la 0k �a* LS LleL�—=—V qp—'r vw' 4 �QuiS OK OK OK OK OK, draws down in 2-5 days. 3 :1 OK 10 :1 OK EC �IV,�.. t0.0 ft OK i 3 :1 OK 1.7:1 OK JUL 2 0 20�2 ` y (Y or N) OK 1A ft OK I n (Y or N) OK SY; I y (Y or N) OK I y (Y or N) OK emergency pump Parts f. S H. Design Summary, Page 2 of 2 Permit No. (to be provided by DWQ) F Ill. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project Initial in the space provided to indicate the following design requirements have been met If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. aW2 6!N4w ,t11m Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, Off -site drainage (if applicable), - Delineated drainage basins (include National C coefficient per basin), Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), Overflow device, and - Boundaries of drainage easement. 2. Partial plan (1" = 30' or larger) and etails for the wet detention basin showing: - Outlet structGre with trash or similar, - Maintewce;—access, - Permanent powrimensions, - Forebay ao main pond with hardened emergency spillway, Bas�irt cross-9don, - Vegetab 6pecificaation for planting shelf, and - Filter shsp. 3. Section view of the wet deten#n basin 0" = 20' or larger) showing: Side slgp6s, 3:1 or lower, Pretreatment and treatment areas, and - Inlepnd outle6tructures. 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified on the plans prior to use as a wet detention basin. 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, to verify volume provided. 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (O&M) agreement. 9. A copy of the deed restrictions (if required). 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County soil maps are not an acceptable source of soils information. Form SW401-Wet Detention Basin-Rev.8-9117109 ECIV' APR 0 9 2012 BY: Part Ill, Required Items Checklist, Page 1 of 1 7 _ • Permit Number: 51A1 Q01H (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 £orebay. 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 1 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. r 07 S. Form SW401-Wet Detention Basin O&M-Rev.4 JUN 13 2012 age 1 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I 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 s ra yin . The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. PIants 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. PECEIV .,u�, f � zofz Form SW401-Wet Detention Basin O&M-Rev.4 I Page 2 of 4 BY:_ Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate the roblem: 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 6.95 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 4.55 feet in the forebay, the sediment shall be removed. Sediment Removal . 12.5 � I Bottom Elevatio 1 I.5 F'OREBAY BASIN DIAGRAM 6CY1 in the blanks) Permanent Pool Elevation 16.5 errtanen Pool •Volume Sediment Removal Elevation 9.55 Volume -fl Min.--------------------------------------------Li --- Sediment Bottom Elevation 8.55 ft r Storage Sedimei Form SW401-Wet Detention Basin O&M-Rev.4 MAIN POND F 'ECEIVE JUN 13 2012 Page 3 of 4 Storage 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: } i. o +� 6-T�'S �k /E BMP drainage area number:.._I _- Print name: (`�C44AKD C . P,A G,J�—' cve r'oa�� Title: A"/ — Address: '70/ z Phone: -2 5-z Signature: Date: t 7,-1 6 -1/ M 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, JJ-924,er— , a Notary Public for the State of C , County of �,4�n� , do hereby certify that personally appeared before me thisALa day of and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, SEAL J ee,�� RECEIVED JAN 3 1 2012 BY: / DEC -8 2011 My commission expires 62 ,-C/ Z T ' D Form SW401-Wet Detention Basin O&M-Rev.4 l Page 4 of 4