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HomeMy WebLinkAboutSW7071115_CURRENT PERMIT_20171106STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. I SW� yll/ DOC TYPE CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE gl -IZZZ%(p YYYYMMDD Energy, Mineral & Land Resources ENVIRONMENTAL QUALITY November 6, 2017 Mr. Israel Golasa I.G. Holdings, LLC PO Box 120 Kitty Hawk, NC 27949 iN(IAc ROY COOPER Governor MICHAEL S. REGAN Secretary TRACY DAVIS Director Subject: Stormwater Permit No. SW7071115 Modification I.G. Holdings High Density Project Dare County Dear Mr. Golasa: The Washington Regional Office received a complete Stormwater Management Permit Modification Application for I.G. Holdings development on September 27, 2017. 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 21-1.1000. We are forwarding Permit No. SW7071115 Modification dated November 6, 2017, for the construction of the subject project. This permit shall be effective from the date of issuance unti December 7, 2021, shall void permit No. SW7071115 dated November 25, 2008, and s a I be su ' sit the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 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 me at (252) 948-3923. Sincerely, Roger K. Thorpe Environmental Engineer Cc Albemarle & Associates, LTD Dare County Buildings Inspections Nothing Compares„ State of North Carolina I Environmental Quality I Energy. Mineral and Land Resources Waehinntnn Reninnal Office 1 941 Waahinmmn Snuere Mall I Washinornrt NC 77889 �� 4r `l '_)' — y+ '!1 •— —` r A '. •ail {1. . _ � STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES 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 I.G. Holdings, LLC I.G. Holdings Dare County FOR THE construction, operation and maintenance of an infiltration basin in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') anc the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Energy, Mineral, and Land Resources and considered a part of this permit. This permit shall be effective from the date of issuance until December 7, 2021, 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 1.6 of this permit. The stormwater control has been designed to handle the runoff from 51,678 square feet of impervious area. This basin must be operated with a 50' vegetated filter. 3. The tract will be limited to the amount of built -upon area indicated Section 1.6 of this permit, and per approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. !'Nothing Compares. State of North Carolina I Environmental Quality I Energy. Mineral and Land Resources Washington Regional Office ( 943 Washington Square Mall I Washington NC 27889 252 946 6481 6. The following design criteria have been provided in the infiltration basin and must be maintained at design condition: a. Drainage Area: 120,341 s.f. (2.76 acres) b. Total Impervious Surfaces, ft2: 51,678 c. Design Storm, inches: 1.5 d. Basin Depth, feet: 1.1 e. Bottom Elevation, FMSL: 3.0 f. Bottom Surface Area, ft2: 5,722 g. Bypass Weir Elevation, FMSL: 4.50 h. Permitted Storage Volume, W: 7,508 i. Type of Soil: Corolla-Duckston j. Expected Infiltration Rate, in/hr: 15 k. Seasonal High Water Table, FMSL: 1.0 I. Time to Draw Down: 0.1 days M. Receiving Stream/River Basin: Mill Creek / Pasquotank n. Stream Index Number: 30-22-22 o. Classification of Water Body: "SA, HQW" II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. Nothing Compares..... State of North Carolina I Environmental Quality I Energy. Mineral and Land Resources Washington Regional Office 1 943 Washngton Square Mall I Washington. NC 27889 252 946 6481 e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of bypass structure, infiltration media, flow spreader, catch basins, piping and vegetated filter. g. A clear access path to the bypass structure must be available at all times. Records of maintenance activities must be kept and made available upon request to authorized personnel of DEMLR. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed ertifyingthatthe 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 maybe required for those deviations. 7. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 8. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 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. `-"Nothing Compares State of North Carolina I Enwonmental Quality I Energy. Mineral and Land ReSnlirces Washington Regional Office 1 943 Washington Square Mail I Washington, NC 27889 252946 b481 10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 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, 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, 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 DEQ 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. (Nothing Compares State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources Washington Regional Office i 943 Washington Square Mall I Washington, NC 27889 252 946 6481 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. 10. This permit shall be effective from the date of issuance until December 7, 2021. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. Permit issued this the 6th day of November, 2017. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Tracy E. Davis, PE, CPM, Director Division of Energy, Mineral, and Land Resources By Authority of the Environmental Management Commission Permit No. SW7071115 Modification !—'Nothing Compares,. State of North Carolina I Environmental Quality I Energy. Mineral and Land Resources Washington Regional Office 1 943 Washington Square Mail I Washington, NC 27889 252 946 6481 I�nJ)31Tii "v�'illY1 G'li.^�;.'Sd$¢flLRI .NVYP.a`�h r.._ a: 142 ad .W.._1 �aYkW.,W. i77 4 I.G. Holdings Stormwater Permit No. SW7071115 Modification Dare Countv 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 specification: Signature Registration Number Date SEAL !`Nothing Compares State of North Carolina I Environmental Quality I Energy. Mineral and Land Resources Washington Regional Office 1 943 Washington Square Mail I Washington. NC 27889 252 946 6481 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 bypass structure weir elevation is per the approved plan. 6. The bypass structure is located per the approved plans. 7. A Trash Rack is provided on the 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. All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. -/'Nothing Compares_, State of North Carolina I Environmental Quality! Energy. Mineral and Land Resources Washington Regional Office 1 943 Washington Square Mall I Washington, NC 27889 M2 946 6481 RECEIVED SEp 2 7 201j DEMLR USE ONLY Date Receive Fee Paid Permit Number x—,77 a vV r] u7 /it 5— Applicable Rules: ❑ Coastal SW — 1995 ❑ Coastal SW — 2008 ❑ Ph II - Post Construction (select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ Mgmt Plan: State of North Carolina Department of Environment and Natural Resources Division of Energy, Mineral and Land Resources STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may he photocopied for use as an original I. 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.): IG Holdings, LLC 2. Location of Project (street address): City:Avon County:Dare Zip:27915 3. Directions to project (from nearest major intersection): From the intersection of Harbor Road (SR 1224) and NC Hwy 12 proceed north along NC Hwy 12 approximately 600'. The facility will be on the left. 4. Latitude:350 21' 16" N Longitude:750 30' 11" W of the main entrance to the project. II. PERMIT INFORMATION: 1.a.Specify whether project is (check one): ❑New ®Modification ❑ Renewal w/ Modificationt 'Renewals with modifications also requires SWU-102 — Renewal Application Form b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit numberSW70711 1 5 its issue date (if known)l1/25/2008 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 ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being submitted as the result of a previously returned application or a letter from DEMLR 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 0404/401 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: 5. Is the project located within 5 miles of a public airport? ®No []Yes If yes, see S.L. 2012-200, Part Vl: http:/Iportal.ncdenr.org/web/Ir/rules-and-regulations III. 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): Form SWU-101 Version Oct. 31, 2013 Page 1 of 6 UI �'Fijq--D 2Eb a Applicant/Organization:l G Holdings, LLC Signing Official & Title:lsrael Golasa. Manager b.Contact information for person listed in item 1a above: Street Address:2229 South Croatan Highway City:Nags Head State:NC Zip:27959 Mailing Address (if applicable):PO Box 120 City:Kitty Hawk State:NC Zip:27949 Phone: (252 ) 480-0009 Email:beachmartinc(a)gmail.com 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 item 2a above: Street Address: City: State: Mailing Address (if applicable): City: State: Phone:( ) Fax: Zip: 3.a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Signing Official & Title: b.Contact information for person listed in item 3a above: Mailing Address: City: Phone: ( ) Email: 4. Local jurisdiction for building permits: Dare County Point of Contact:Donna Creef I1���3�lOx�i�Ia YU N `Jill G7 A Fax: ( ) Phone #: (252 ) 475-5873 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. Runoff from the site drains via sheet flow and closed collection system into an infiltration basin on the west side of the site. A bypass is provided for excess and is connected to a level spreader Form SWU-101 Version Oct. 31, 2013 Page 2 of 6 that discharges into a grassed area. 2.a.If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUDApproval 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 11— Post Construction 3. Stormwater runoff from this project drains to the Pasquotank River basin. 4. Total Property Area: 2.88 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0.12 acres 7. Total Property Area (4) —Total Coastal Wetlands Area (5) —Total Surface Water Area (6) = Total Project Area*:2.76 acres Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to calculate overall percent built upon area (BUA). 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 I Total Project Area) X 100 = 42.9% % 9. How many drainage areas does the project have?l (For high density, count 1 for each proposed engineered stormwater BMP. For low density and other projects, use 1 for the whole property 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. Basin Information Drainage Area 1 Drainage Area Drainage Area Drainage Area Receiving Stream Name Mill Creek Stream Class ` SA, HOW Stream Index Number ` 30-22-22 Total Drainage Area (sf) 120,341 On -site Drainage Area (sf) 120,341 Off -site Drainage Area (so 0 Proposed Impervious Area" (sf) % Impervious Area" (total) Impervious— Surface Area Drainage Area Drainage Area Drainage Area Drainage Area - On -site Buildings/Lots (sf) 16,650 On -site Streets (sf) 0 On -site Parking (sf) 30,672 On -site Sidewalks (sf) 3,971 Other on -site (so 185 Future (sf) 200 Off -site (so 0 Existing BUA"` (sf) 0 Total (sf): 51,678 Stream Class and Index Number can be determined at: htip://portal. ncdenr. orq/web/wq/ps/csu/classifications " 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 by new BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. FormSWU-lot Version Oct. 31,2013 Page 3of6 Projects in Union County: Contact DEMLR Central Office staff to check iftheproject it located within a Threatened & Endangered Species watershed that maybe subject to more stringent stormwater requiremenLs as per 15A NCAC 02B .0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://portal.ncdenr.orq/web/wu/ws/su/bmD-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and Land Resources (DEMLR). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms docs. The complete application package should be submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the interactive online map at http://portal.ncdenr.org/web/wq/ws/su/maps.) Please indicate that the following required 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 http://portal.ncdenr.org/web/wq/ws/su/statesw/forms docs. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. KS11 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants v1A ��� Form. (if required as per Part Vll below) /P eta oy \ 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&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.orq/pages/onestopexpress.html 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.) 5. A detailed narrative (one to two pages) describing the stormwater treatment/management for 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 Y: mile of the site boundary, include the Y: mile radius on the map. 7.. Sealed, signed and dated calculations (one copy). 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number 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 lines. • 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. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. I. Details of roads, drainage features, collection systems, and stormwater control measures. m. Wetlands delineated, 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 drainage (including off -site), drainage easements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers (where required). Form SWU-101 Version Oct. 31, 2013 Page 4 of 6 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"xl 1" 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 DEMLR to verify the SHWT prior to submittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: 1752 Page No: 035 ^5k3 M 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC f�SS Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item 1 a, 2a, and/or 3a per 15A 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. http://www.secretary.state.nc.us/Corporations/CSearch.aspx 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.nr-denr.oM/web/Ir/state-stormwater-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 in the permit and listed on the forms available on the website, 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 NC DEMLR, and that they will be recorded prior to the sale of any lot. Vill. 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 information). Consulting Engineer: Michael J. Morway, PE Consulting Firm: Albemarle & Associates, Ltd Mailing Address:PO Box 3989 City:Kill Devil Hills State:NC Zip:27948 Phone: (252 ) 441-2113 Fax: (252 ) 441-0965 Email: mikempalbemarieassociates.com 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) n/a certify that I own the property identified in this permit application, and thus give permission to (print or type name of person listed in Contact Information, item 1 a) with (print or type name of organization listed in Contact Information, item la) 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 DEMLR Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DEMLR immediately and submit Form SWU-101 Version Oct. 31, 2013 Page 5 of 6 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. Signature: a Notary Public for the State of County of , do hereby certify that Date: 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, MAUL My commission X. APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information, item 1 a) Israel Golasa 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 recorded, and that the proposed project complies with the requirements of the applicable stormwater rules under 15A NCAC 2H .1000 and any other applicable state stormwater requirements. Date: -1 a 0 -1-7 1, �1(�e_ ULW -N t � , a Notary Public for the State of/� 0 Q- County of UU1-•l— Lt U(- , do hereby certify that /1 LLt� V (4.CL-Qf personally appeared before me this day of gt ZO U i , and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, 31, 2013 Page 6 of 6 Michael F Easley, Govemot t br l4 William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality November 25, 2008 Mr. Israel Golasa I.G. Holdings, LLC PO Box 120 Kitty Hawk, NC 27949 Subject: Stormwater Permit No. SW7071115 Modification I.G. Holdings High Density Project Dare County Dear Mr. Golasa: The Washington Regional Office received a complete Stormwater Management Permit Modification Application for I.G. Holdings development on September 26, 2008. 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. SW7071115 Modification dated November 25, 2008, for the construction of the subject project. This permit shall be effective from the date of issuance until December 7, 2017, shall void permit No. SW7071115 dated December 7, 2007, 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 Samir Dumpor, or me at (252) 946-6481. i n y, AI d Regional Supervisor Surface Water Protection Section AH/sd: S:\WQS\STORMWAT\PERMIT\I.G. Holdings cc: John DeLucia, PE, Albemarle Associates, Ltd. Dare County Building Inspections Doug Huggett, Division of Coastal Management Washington Regional Office Central Files North Carolina Division of Water Quality Internet www ncwateroualitv.om One 943 Washington Square Mall Phone (252) 946-6481 NorthCarollna Washington, NC 27889 Fax (252) 946-9215 a uraly An Equal OpportunitylAffirmahve Action Employer -50%Recycled110% Post Consumer Paper Naturally State Stormwater Management Systems Permit No. SW7071115 Modification 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 I.G. Holdings, LLC I.G. Holdings Dare County FOR THE construction, operation and maintenance of an infiltration basin 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 December 7, 2017, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 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 1.6 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 48,375 square feet of impervious area. This basin must be operated with a 50' vegetated filter. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 2 of 7 Permit No. SW7071115 Modification The following design criteria have been provided in the infiltration basin and must be maintained at design condition: a. Drainage Area: 120,341 s.f. (2.76 acres) b. Total Impervious Surfaces, ft2: 48,375 C. Design Storm, inches: 1.5 d. Basin Depth, feet: 1.1 e. Bottom Elevation, FMSL: 3.0 f. Bottom Surface Area, ft2: 5,722 g. Bypass Weir Elevation, FMSL: 4.50 h. Permitted Storage Volume, ft3: 7,508 i. Type of Soil: Corolla-Duckston j. Expected Infiltration Rate, in/hr: 15 k. Seasonal High Water Table, FMSL: 1.0 I. Time to Draw Down: 0.1 days M. Receiving Stream/River Basin: Mill Creek / Pasquotank n. Stream Index Number: 30-22-22 o. Classification of Water Body: "SA, HQW" II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of bypass structure, infiltration media, flow spreader, catch basins, piping and vegetated filter. g. A clear access path to the bypass structure must be available at all times. Page 3of7 State Stormwater Management Systems Permit No. SW7071115 Modification 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity; name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 7. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 8. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 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, Page 4 of 7 Permit No. SW7071115 Modification „ accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. 10. This permit shall be effective from the date of issuance until December 7, 2017. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. PermikFRTi 'ed this the 25th day of November, 2008. CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION - for Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. SW7071115 Modification Page 5 of 7 State Stormwater Management Systems Permit No. SW7071115 Modification I.G. Holdings Stormwater Permit No. SW7071115 Modification Dare 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 specification: Signature Registration Number Date SEAL Page 6 of 7 JIGIG V1V1111VVPlG1 IVIOIIOl,G111G11I VY-'I IIIJ Permit No. SW7071115 Modification 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 bypass structure weir elevation is per the approved plan. 6. The bypass structure is located per the approved plans. 7. A Trash Rack is provided on the 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. All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Dare County Building Inspections Page 7 of 7 Permit No. (to be Provided by DWQ) A020E WATp,9OG ®'fin STORMWATER MANAGEMENT PERMIT APPLICATION FORM o WDENR 401 CERTIFICATION APPLICATION FORM INFILTRATION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. INFORMATION Contact Person Phone Number Date Drainage Area Number 111. DESIGN INFORMATION _ I Site Characteristics '`jy Drainage area 120,34100 ftz V Impervious area 48,375t() ft2 V SEP 2 6 2008 Percent impervious 0.40 Design rainfall depth 1.5 in Peak Flow Calculations J Is pre/post control of the 1-yr 24-hr peak now required? N (Y or N) 1-yr, 24-hr runoff depth in 1-yr, 24-hr intensity in/hr Pre -development 1-yr, 24-hr runoff volume ft3lsec Post -development 1-yr, 24-hr runoff volume ft3lsec Pre/Post 1-yr, 24-hr peak now control ft3lsec Storage Volume: Non -SR Waters Minimum design volume required 6,004 ft3 V Design volume provided 7,508 ft3 ✓ OK for non -SR waters Storage Volume: SR Waters 1-yr, 24-hr rainfall depth Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Soils Report Summary Soil type Infiltration rate SHWT elevation Basin Design Parameters Drawdown time Basin side slopes Basin bottom elevation Storage elevation Top elevation Basin Bottom Dimensions Basin length Basin width Bottom SA DIA 15.00 inmr 1.00 fmsl 0.1 days OK 4 :1 OK 3.00 fmsl OK 4.10 fmsl 4.50 fmsl Varies n Varies ft 5,722 ftz Fonn SW401-Infiltration Basin-Rev.1 Pans 1 a 11. Design Summary, Page 1 of 2 Permit No. (to be provided by DWty Additional Information Total runoff volume captured by basin Length of vegetative fitter for overflow Distance to structure Distance from surface waters Distance from water supply well(s) Separation from impervious soil layer Naturally occunng soil above shwt Bottom covered with 4-in of clean sand? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Bypass provided for larger storms? Pretreatment device provided 1.54 acin 50 It 80 ft 78 it >100 ft ft 1.5 it Y (Y or N) Y (Y or N) Y (Y or N) Y (Y or N) OK OK OK OK OK OK OK OK OK OK Forth SW401-Infitlratwn Basin-Rev.1 Pans 1. & 11 Design Summary, Page 2 of 2 Permit No. (to be provided by DWQ) III. 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. Pagel Plan Initia_ls� C Sht o. `(' 1. Plans (1' - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. 2. Partial plan (1' = 30' or larger) and details for the infiltration basin showing: S {� - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. h 3( Section view of the infiltration basin (1' = 20' or larger) showing: Pretreatment and treatment areas, and Inlet and outlet structures. G zcC 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. k4V�t__(_ 6. An assurance that the installed system will meet design specifications upon initial operation once the project is complete and the entire drainage area is stabilized. 7. A construction sequence that shows how the infiltration basin will be protected from sediment until the r1y.S f+�z entire drainage area is stabilized. ,It�Q �j8. The supporting calculations. �L rc1 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. r�r at�_4 10. A copy of the deed restriction. Form SW401-Infiltration Basin-Rev.1 Page 3 of 3 Part III. Required Items Checklist, Page 3 of 3 SEP 2 6 2008 Stormwater Management System Inspection and Maintenance Agreement DVVQ 1VAf%'0 I will keep a maintenance log 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 of the efficiency of the BMP. Important maintenance procedures: • The drainage area will be carefully managed to reduce sediment load to the infiltration basin. • Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks) • No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the vegetation. • The vegetation in and around the basin will be maintained at a height of approximately six inches. • Stable groundcover will be maintained in the drainage area of the basin and the overflow divert to reduce sediment load to the vegetation. • Once a year, the soil will be aerated if necessary. • Once a year, soil pH will be tested and lime will be added if necessary. After the stormwater management system is established, it will be inspected once a quarter and within 24 hours after every storm event greater than 1.5 inches. Records of inspection and maintenance will be kept in a known set location and will be available upon request. BMP element: Potentialproblem: How will I remediate theproblem: The entire BMP Trash/debris is present. Remove trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to infiltration 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. The inlet device: pipe or The pipe is clogged (if Unclog the pipe. Dispose of the swale. applicable) sediment off -site. The pipe has cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. BMP clement: Potential Problem: How will I remediate the roblem: The flow diversion The structure is clogged. Unclog the conveyance and dispose structure (if applicable) of any sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. Infiltration basin A visible layer of sediment Search for the source of the has accumulated. sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Replace any media that was removed in the process. Revegetate disturbed areas immediately. Water is standing more than Replace the top few inches of filter 5 days after a storm event. media and see if this corrects the standing water problem. If so, revegetate immediately. If not, consult an appropriate professional for a more extensive repair. Weeds and noxious plants Remove the plants by hand or by are growing in the main wiping them with pesticide (do not treatment area. spray). The embankment Shrubs or trees have started Remove shrubs or trees to grow on the embankment. immediately. An annual inspection by an Make all needed repairs. appropriate professional show that the embankment needs repair. The outlet device Clogging has occurred. Clean out the outlet device. Dispose (including level spreader of the sediment off -site. if applicable) The outlet device is Repair or replace the outlet device. damaged. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name:Israel Golasa - I.G. Holdings Title:Owner/Sole Managing Partner Address:PO Box 120, Kitty Hawk, NC 27949 Phone:252-480-0009 Signature: CRZVV ,9}hC� Date: q-Z-09 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. a Notary Public for the State of County of DVAu2_e do hereby certify that I S�4e lea (GSA personally appeared before me this Z3 day of and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, ..... .�....... � i6IMP My commission expires High Density Commercial Subdivisions SEP 2 6 2008 Deed Restrictions & Protective Covenances QVVio-vuA RL) In accordance with Title 15 NCAC 2H.1000, the Management Regulations, deed restrictions and protective covenants are required for High Density Commercial Subdivisions where lots will be subdivided and sold and runoff will be treated in an engineered stormwater control facility. Deed restrictions and protective covenants are necessary to ensure that the development maintains a built - upon area consistent with the design criteria used to size the stormwater control facility. I, , acknowledge, affirm and agree by my signature below, that I will cause the following deed restrictions and covenants to be recorded prior to the sale of any lot within the project known as PRollLSEh fi PtUSiEE /Lomas 1. The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number as issued by the Division of Water Quality under NCAC 2H.1000. 2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the stormwater management permit. 3. These covenants are to run with the land and be binding on all persons and parties claiming under them. 4. The covenants pertaining to stormwater may not be altered or rescinded without the express written consent of the State of North Carolina, Division of Water Quality. 5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the Division of Water Quality. 6. The maximum allowable built -upon area per lot is gig. 37S square feet. (OR, if the proposed built -upon area per lot will vary, please use the following format & language (in bold): The maximum built -upon area per lo4 in square feet, is as listed below: Lot # BUA Lot # BUA Lot # BUA Lot # BUA This allotted amount includes any built -upon area constructed within the lot property boundaries, and that portion of the right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools. 7. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be accomplished through a variety of means including roof drain gutters which drain to the street, grading the lot to drain toward the street, or grading perimeter swales to collect the lot runoff and directing them into a component of the stormwater collection system. Lots that will naturally drain into the system are not required to provide these additional measures. 8. The owner of each lot, whose ownership is not retained by the permittee, is required to submit a separate stormwater permit application to the Division of Water Quality and receive a permit prior to construction. l� Signature: ( gip t^4 f, Date: tu�u9-23-og I, ,�l f4 a Notary Public in the State of /�- aB t.L, ra �-e l� h c County of JDG K do hereby certify thatp( t64 ( personally appeared before me this the 23 day of �Se-p��� e-•2�1� acknowledge t due xecution f e foregoing instrument. Witness my ha�doj offi'=-;k�q, Sig a e M Commission expires 0 �r Cou^`7„ A I.G. Holdings, LLC— I.G. Holdings Stormwater Permit No. SW7071115 Designees Certification I, ✓a Nam- as a duly re istered Professional Engineer in the State of North Carolina, having been authorized to observe [(periodically eekly/full time) �? /� N the construction of the project,K Ate. / H s� (Project) for mil— - (�- -y�8! k (Project Owner) hereby state that to the best of my abilities, a care and diligence was used in the observation of the project construction ch tha the constructio was served to be built within substantial compliance and intent of the approved pl s and s ifi tions. �°°°°°p1°011°°a• -�kk CAROl "''• Signature Es 8-,;,._ •, Registration Enber !(o JJ 09 4= ;FAL = ��O.e 16759 �7/•ems Date . Certification Requirements: _'.' eUINr;'_ &`. . . �.01. The drainage area to the systemrcon aMr approximately the permitted acreage. —.T,�2. The drainage area to the system contains no more than the permitted amount of built -upon area. —J;;6 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. elm 4. All roof drains are located such that the, runoff is directed into the system. —=Zt�P_ 5. The outlet/bypass structure elevations are'per the approved plan. The outlet/bypass structure is located per the approved plans. Il1/H 7. Trash rack is provided on the outlet/bypass structure. AJb+ 2E7 �8. All slopes are grassed with permanent vegetation. l may_ • 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. All required design depths are provided. RECii� t,�! VED101 *13. All required parts of the system are provided. ��// LLNN NOV 0 5 2006 �14. The required system dimensions are provided per the approved plans. ��N�O/V � p2/00 I emarle & ASSOCIATES, LTD. November 3, 2008 North Carolina Division of Water Quality 943 Washington Square Mall Washington, NC 27889 ATTN: Samir Dumpor, PE RE: Project Name: I.G. Holdings Project No.: SW7071115 Location: Avon, Dare County Drainage Basin: Pasquotank Submitted on Behalf Of: I.G. Holdings Dear Mr. Dumpor: NOV 0 5 2008 Enclosed is the Designers Certification for the above project. The Stormwater Management elements have all been properly installed and are functioning as designed. The storage volume in the basin has been confirmed by an as -built survey. This portion of the project is complete. We are still awaiting a modification to this permit to add a 2400 sf employee housing building to the site. The basin is large enough to accommodate the additional coverage without making any modifications., If I can provide any additional information at this time, please do not hesitate to contact me. cc: File 7614A/350 I.G Holdings,.LLC (no attachments) Engineering — Surveying — Land Planning . P.O. Box 3989, 115 W. Saint Clair St., Kill Devil Hills, NC 27948 Telephone: 252-441-2113 Fax: 252-441-0965 E; . Z �A Permit No. (to be pmwded by DWQ) ® A/� NON 1 g 2001 �pF WATF90 ii/ (/► �(�STORMWATER MANAGEMENT PERMIT APPLICATION FORM y� HCDENR ®1>�1V Q'kfVA C) 401 CERTIFICATION APPLICATION FORM INFILTRATION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part /I/) must be printed, filled out and submitted along with all of the required information. Project Name Contact Person Phone Number Date Drainage Area Number II. DESIGN INFORMATION Site Characteristics 6-Nov-07 1 Drainage area 120,341.00 ftz Impervious area 45,384.00 1tz Percent impervious 0.38 Design rainfall depth 1.5 in Peak Flow Calculations Is pre/post control of the 1-yr 24-hr peak flax required? N (Y or N) 1-yr, 24-hr runoff depth in 1-yr, 24-hr intensity in/hr Pre -development 1-yr, 24-hr runoff volume ft'/sec Post -development 1-yr, 24-hr runoff volume ft3/sec Pre/Post 1-yr, 24-hr peak flow control fe/sec Storage Volume: Non -SR Waters Minimum design volume required 5,603 ft3 Design volume provided 7,508 ft' OK for non -SR waters Storage Volume: SR Waters 1-yr, 24-hr rainfall depth in Pre -development 1-yr, 24-hr runoff ft3 Post -development 1-yr, 24-hr runoff ft Minimum volume required ft3 Volume provided it, Soils Report Summary Soil type DtA Infiltration rate 15.00 in/hr SHWT elevation 100 fmsl Basin Design Parameters Drawdown time 0.1 days OK Basin side slopes 4 :1 OK Basin bottom elevation 3.00 fmsl OK Storage elevation 410 fmsl Top elevation 4.50 fmsl Basin Bottom Dimensions Basin length Varies it Basin width Varies ft Bottom SA 5,722 fe Forth SW401-Infihralion Basin-Rev.1 Parts I. S II. Desgn Summary, Page 1 of 2 Permit No. (to be Provided by DWQ) Additional Information Total runoff volume captured by basin 1.54 ac-in OK Length of vegetative fitter for overflow 50 it OK Distance to structure 285 8 OK Distance from surface waters 78 8 OK Distance from water supplywell(s) >100 ft OK Separation from impervious soil layer it Naturally occuring soil above shwt 1.5 it OK Bottom covered with 4�n of dean sand? Y (Y or N) OK Recorded drainage easement provided? Y (Y or N) OK Capures all runoff at ultimate build -out? Y (Y or N) OK Bypass provided for larger storms? Y (Y or N) OK Pretreatment device provided Form SW401-Infifiratkm Basin-Rev.1 Parts I & It. Design Summary. Page 2 of 2 Permit (to be provided by DWQ) III. 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. Pagel Plan Initials Sheet No. J f Z- 1. Plans (1"- 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. Z 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing: - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. IZ 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. 441c c . &5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. ttwl.., -t- 6. An assurance that the installed system will meet design specifications upon initial operation once the project is complete and the entire drainage area is stabilized. - i Z 7. A construction sequence that shows how the infiltration basin will be protected from sediment until the entire drainage area is stabilized. 8. The supporting calculations. 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. 10. A copy of the deed restriction. Form SW401-Infiltration Basin-Rev.1 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1