Loading...
HomeMy WebLinkAboutSW7091003_CURRENT PERMIT_20110221STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW'l�r� DOC TYPE CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMM DD �&PtA NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary February 21, 2011 Mr. Israel Golasa, Manager G. Holdings, LLC PO Box 120 Kitty Hawk, NC 27949 Subject: Stormwater Permit No. SW7091003 Modification Monteray Greens High Density Project Currituck County Dear Mr. Golasa: The Washington Regional Office received a complete Stormwater Management Permit Modification Application for Monteray Greens (formerly Corolla Fun Park) on February 7, 2011. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-211 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7091003 Modification dated February 21, 2011, for the construction of the subject project. i This permit shall be effective from the date of issuance until February 21, 2021, shall void Permit No. SW7091003, dated October 22, 2009 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. iAi hoage r— \L& , Regional Supervisor Surface Water Protection Section AH/sd: K:\SD\Permits - Infiltration\SW7091003 cc: Michael Morway, PE, Albemarle & Associates, Ltd. Currituck County Building Inspections LAashington Regional Office North Carolina Division of Water Quality Internet'. www. ncwalcraualityorg 943 Washington Square Mall Phone: 252-946-6481 One Washington, NC 27889 FAX 252-946-9215 NorthCarofiina An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper ;VQtural& State Stormwater Management Systems Permit No. SW7091003 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 G. Holdings, LLC Monteray Greens Currituck County FOR THE construction, operation and maintenance of 3 infiltration basins, in compliance with the provisions of Session Law 2008-211 and 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 modification is to reduce the size of the project from 3 parcels as originally permitted to 2 parcels. One parcel with a 27-hole miniature golf course and the other with a "spin zone" facility are proposed in this Modification. This permit shall be effective from the date of issuance until February 21, 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 1.7 on page 3 of this permit. The stormwater control has been designed to handle the runoff from total of 45,810 square feet of impervious area. 3. The tract will be limited to the amount of built -upon area indicated in Section 1.7 on page 3 of this permit, and as shown on the 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. 6. The built -upon areas associated with this project shall be located at least 50 feet landward of all surface waters. 7. The following design criteria have been permitted for the infiltration basin and must Page 2 of 7 State Stormwater Management Systems Permit No. SW7091003 Modification be provided and maintained at design condition: INFILTRATION BASIN$ BASIN #1 BASIN #2 a. Drainage Area, 39,543 11 1,1 b. Total Impervious Surfaces, ft2: 23,956 7,651 C. Design Storm, inches: 1.5 1.5 d. Basin Depth, feet: 2.50 2.50 e. Bottom Elevation, FMSI2: 6.50 6.50 f. Bottom Surface Area, ft : 1,329 173 g. Bypass Weir Elevation, FMSy 9.00 9.00 h. Permitted Storage Volume, ft : 5,508 1,624 i. Type of Soil: Corolla Fine Sand Newhan-Corolla j. Expected Infiltration Rate, in/hr: 20.00 20.0 k. Seasonal High Water Table, FMSL: 4.50 4.50 I. Time to Draw Down, days: 1.0 1.0 M. Receiving Stream/River Basin: Currituck Sound / Pasquotank n. Stream Index Number: 30-1 o. Classification of Water Body: "SC" a. urainage Area, r<: b. Total Impervious Surfaces, ft2: C. Design Storm, inches: d. Basin Depth, feet: e. Bottom Elevation, FMS�: f. Bottom Surface Area, ft : g. Bypass Weir Elevation, FMSL: h. Permitted Storage Volume, ft i. Type of Soil: j. Expected Infiltration Rate, in/hr: k. Seasonal High Water Table, FMSL: I. Time to Draw Down, days: M. Receiving Stream/River Basin: n. Stream Index Number: o. Classification of Water Body: II. SCHEDULE OF COMPLIANCE 14,203 1.5 1.00 4.50 1,300 5.50 2,110 Osier Fine Sand 20.00 1.50 1.0 Currituck Sound / Pasquotank 30-1 "SC" 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 3 of 7 State Stormwater Management Systems Permit No. SW7091003 Modification 4. Records of maintenance activities must be kept for each permitted BMP. The reports 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. 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. 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. 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. 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 to any person or entity 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 completed Name/Ownership Change form to the Division of Water Quality, signed by both parties, and accompanied by the Page 4 of 7 State Stormwater Management Systems Permit No. SW7091003 Modification appropriate documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 3. 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. 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, 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. 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 issued shall continue in force and effect until revoked or terminated. 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. 8. Unless specified elsewhere, permanent seeding requirements for the stormwater controls must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules and regulations contained in Session Law 2008-211, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et. al. 11. The permittee shall notify the Division in writing of any name, ownership or mailing address changes at least 30 days prior to making such changes. 12. This permit shall be effective from the date of issuance until February 21, 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 21th day of February, 2011. 1\10)�RTH C2OLINA ENVIRONMENTAL MANAGEMENT COMMISSION II\' for C' leen H. Su tins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. SW7091003 Page 5 of 7 State Stormwater Management Systems Permit No. SW7091003 Modification Monteray Greens Stormwater Permit No. SW7091003 Modification Currituck 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 atate atormwater management Systems Permit No. SW7091003 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 Currituck County Building Inspections Page 7 of 7 I m rl be a e & ASSOCIATES, LTD. June 12, 2012 NCDENR - Division of Water Quality 943 Washington Square Mall Washington, NC, 27889 ATTN: Ms. Samir Dumpor RE: Stormwater Permit SW7091003 Modification Monteray Greens, Currituck County, North Carolina FINAL CERTIFICATION Dear Samir:' RECEIVED J U N 2 6 2012 DWQ-WAR® Find attached the final certification for the above. The site stormwater management system is properly installed and I witnessed its functioning during the recent heavy rainfall events. If I can provide any additional information, please do not hesitate to contact me. cc:'" '-File 7819E (350) G Holdings, LLC Land Planning - Engineering - Surveying - Environmental - Construction Management P.O. Box 3989, 115 W. Saint Clair St., Kill Devil Hills, North Carolina 27948 Phone: 252-441-2113 www.AlbemarleAssociates.com Fax: 252-441-0965 sios U 6lw State Stormwater Management Systems Permit No. SW7091003 Modification Monteray Greens RECEIVE® Stormwater Permit No. SW7091003 Modification Currituck County JUN 2 6 2012 Designer's Certification -�- _ ®WQ-WARO I, .A9i(KJ tl l )P�jCA , as a duly registered in the State of North Carolina, having been authorized to observe eriodicall / weekly/ full time) the construction of the project, ?d 9 (Project) for a� /t7 LD1006,�> LOL �— (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: / �•'�qH `AR Signature •Q SEAL 16759 Registratio umberGIN /(0 7 p ;• Date ��/O/ Z- 'ti '••' Page 6 of 7 .. ,. - �• -� �� _ � a �., "3 _r. c^,,, ``- _ v. ,; �� '� r a u State Stormwater Management Systems Permit No. SW7091003 Modification Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. x 2. The drainage area to the system contains no mare tt�aR e t ejrmitted amount of brult-upon area. A-ME7 1601 SirA7Dir e - Doi K >C 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. 7,'—' 5. The bypass structure weir elevation is per the approved plan. 2�- 6. The bypass structure is located per the approved plans. 7. A Trash Rack is provided on the bypass structure. JC 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. >C 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. _ ZL 11. The permitted amounts of surface area and/or volume have been provided. pC 12. All required design depths are provided. x 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 Currituck County Building Inspections RECEIVED J U N 2 6 2012 ®WQ-WARO Page 7 of 7 DWQ USE ONLY Fee Paid Ctu 8 L Permit Number witi Md':t `.il 32SG _ 4t no Sw -1 Oct too 3 Applical u(e Z I� Coastal SW -1995 ❑Coastal SW - 2008 ❑ Ph II- Post Construction (select alljjjj a y) UU��fjj Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan Other WQ M mt Plan: State of North Carolina wa- 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 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.): Monteray Greens 2. Location of Project (street address): 810 Ocean Trail City:Corolla County:Currituck Zip:27927 3. Directions to project (from nearest major intersection): From the intersection of NC-12 and US-158, proceed north along NC-12 to Corolla. From the signalized intersection with Albecore Street, continue north 600 feet and turn left onto Malia Drive. The site is immediately on the left 4. T.atitude:36° 19' 42" N Longitude:75* 4W 06" W of the main entrance to the project. 11. 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 ®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 Ietter from DWQ requesting a state stormwater management permit application, list the stormwater proiec-i uant—r, if assigned, and the previous name of the project, if diffPre _t i-h _ crrrr�nt;y proposed, " obtained by contacting, the Customer Service Center at 1-877 623-67 48): _ —. _ , ❑LAMA ".Tajo. ®Sedimentation/Erosion Control: _ ❑NPDES Industrial Stormwater 0404/401 Permit: Proposed Impacts ac of Disturbed Area h.Tf any of these permits have already been acquired please provide the Project Name, Project/Permit Nnmher, issue date and the type of each permit 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 theyroiect): Applicant/Organization:G Holdings . LA—C Signing Official & Title:lsrael Golasa 4 A6oj�,�c 1 ' b. Contact information for person listed in item la above: Street Address:2229 S. 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 Fax: (252 ) 480-0889 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 Signing Official & b. Contact information for person listed in item 2a above: Street Address: Mailing Address City: Phone: State: State: Fax: ( ) 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 Person/Organization: Signing Official & Title: b. Contact information for person listed in item 3a above: Mailing Address: City: State: Phone: ( ) Fax: ( ) 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. Runoff from will sheet flow across pervious and impervious surfaces and be directed to infiltration basins located along the perimeter of the site 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 PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.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 Pasquotank River basin. 4. Total Property Area: 2.06 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 2.06 acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area+:2.06 acres Total project area shall be calculated to exclude thefollowing. the normal pool of imppounded strictures, the area between the banks of streams and rivers, the area below the Normal High Water (N;q line or Mean High Water W) (MHline, and coastal wetlands landward from the NHW (or MIX line. The resultant project area is used to calculate overall percent built upon area (B UA). 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 = 51 % 9. How many drainage areas does the project have?7 (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 2 Drainage Area 3 Drainage Area _ Receiving Stream Name Currituck Sound Currituck Sound Currituck Sound Stream Class * SC SC SC Stream Index Number * 30-1 30-1 30-1 Total Drainage Area (so 39,543 11,113 39,027 On -site Drainage Area (so 39,543 11,113 39,027 Off -site Drainage Area (s0 0 0 0 Pro osed Im ervious Area*' s 23,956 V 7,651 V 14,203 V % Impervious Area total) (Of �/ (�;, °c- �/' ' Impervious" Surface Area Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area 4 On -site Buildings/Lots (so 4,830 2,123 234 On -site Streets (so On -site Parking (so 16,136 5,458 On -site Sidewalks (so 2,990 70 3,695 Other on -site (so 10,274 Future (so Off -site (so Existing BUA*** (so Total (so: 1 23,956 J 7,651 V 14,203 V * Stream Class and Index Number can be determined at: htty://h2o.enr.state.tic.us/bimsheports/reportsWB.htmI " Imyervious 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 B UA. 11. How was the off -site impervious area listed above determined? Provide documentation. AutoCAD Projects in Union County: Contact DWQ Central Ojjice staff to check ifthe project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 01B .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 hqp://h2o.enr.state.nc.us/su/bmp forms.htm. 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 hqp://h2o.enr.state.nc.us/su/bmp forms.htm. 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 htto://h2o.enr.state.nc.us/su/msi maps.htm.) 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 ham://h2o.enr.state.nc.us/su/bmp forms.htm. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. F6 M 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants N(A Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M Mh agreement(s) for each BMP. , 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to ��A http://www.envhelp.org/pages/onestoWxpress.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/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/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. I. 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. 1. 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). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify �S elevations in addition to depths) as wet] as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xll" 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 SHWF prior to submittal, (910) 796-7378.) 1% Z o ` 4I> 10. A copy of the most current property deed. Deed book: 1 t 0 "5' Page No: O 16 c'1 r � �.r� ) r 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC V Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 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. h!W://www.secretaly.state.nc.us/Corl2orations/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 httD://h2o.enr.state.nc.us/su/bmD forms.htmadeed restrictions. 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 DWQ and that they will be recorded prior to the sale of any lot. VIII. 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 T. Morway, PE Consulting Firm: Albemarle & Associates. Ltd. Mailing Address:PO Box 3989 City:Kill Devil Hills State:NC Zip:27948 Phone: (252 ) 4�1-2113 Fax: (252 ) 441-0965 Email:mikem@albemarleassociates.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) 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 la) with (print or type name of organization listed in Contact Information, item Ib) 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. 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 X. APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information, item 2) = S Z A,E L G oLfA SP\ 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 stormwatear rr'u11lees�s under 15A NCAC 2H .1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211. LpJ Signature: vlz/ Date: Z • 2 • I I I, -ai e%Un. fyl—t;VZ211 a Notary Public for the State of A!o 4k (IA,, j w , County of _1i, rt do hereby certify that � s rcc.a' (' n�_I In <._. personally appeared before me this ���� day of _\ _')o I ( . an owledge the due executio of the application for a stormwater permit. Witness my hand and official seal, [ATRICIA M. ORAY NOTARY PUBLIC DARE COUNTY, NC SEAL My commission expiresjolt EXPRESS Permit No.S W-70cl 003 OAC4 FEB 07 2011 (to be provided by DWQ) A p����++ �jC���� doe wargyL NV Wt.MY A ER MANAGEMENT PERMIT APPLICATION FORM h o� NCDENR 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. Contact Person Phone Number Date Drainage Area Number Drainage area Impervious area Percent impervious Design rainfall depth Peak Flow Calculations 1-yr, 24-hr rainfall depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr discharge Post -development 1-yr, 24-hr discharge Pre/Post 1-yr, 24-hr peak flow control Storage Volume: Non -SA Waters Minimum design volume required Design volume provided Storage Volume: SA Waters 1.5' runoff volume Pre -development 1-yr, 24-hr runoff volume Post -development 1-yr, 24-hr runoff volume Minimum required volume Volume provided Soils Report Summary Soil type Infiltration rate SHWT elevation Basin Design Parameters Drawdown time Basin side slopes Basin bottom elevation Storage elevation Storage Surface Area Top elevation Basin Bottom Dimensions Basin length Basin width Bottom Surface Area Monteray Greens Michael J. Morway, PE 252-441-2113 39,543.00 ftz ✓ 23,956.00 fl? 1✓ 0.61 % ✓ 1.50 in 3.17 in 0.13 in/hr 0.02 ft3/sec 0.08 ff3/sec 0.06 folsec 2,942.00 ff3 5,508.00 it' ✓ OK for non -SA waters n/a ft3 ff3 ft3 ft3 ff3 CoB 20.00 in/hr 4.50 fmsl 1.00 days J OK 3.00 :1 OK 6.50 fmsl OK 9.00 fmsl 3,077.00 ftz 9.00 fmsl varies ft varies It 1,329.00 ft" J Form SW401-Innaration Basin-Rev.4 Parts I. a 11. Design Summary, Page 1 of 2 Permit No. (to be provided by DWQ) Additional Information Maximum runoff to each inlet to the basin? 1.50 actin OK Length of vegetative filter for overflow 30.00 ft OK Distance to structure >50' ft OK Distance from surface waters >50' ft OK Distance from water supplywell(s) >50' It OK Separation from impervious soil layer >24" It OK Naturally occudng soil above shwt 24' ft OK Bottom covered with 4-in of clean sand? y (Y or N) OK Proposed drainage easement provided? nla (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 :urb inlet with sump Form SW401-Infiltration Basin-Rev.4 Pans 1. & u. 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 Initials Sheet No. MSV\' czc> 1 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, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. L C3c0� 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. VISN C9_00� 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. M � Sr� C` 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. "' 1N WW—NrJ� 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. Ii C \O k 6. A construction sequence that shows how the infiltration basin will be protected from sediment unfit the entire drainage area is stabilized. -� 7. The supporting calculations. 1� 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. tli _Nk 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Pan III. Required Items Checklist, Page 11 of 1 Volumetric Runoff Calculations Simple Method Project Name: Monteray Greens Project Area Description - DRAINAGE AREA #1 Basin Information existing 0 0 0 0 0 0 0 0 existing (to remain) 0 0 0 0 0 0 0 0 proposed (additional) 4,830 0 16,136 2,990 0 0 0 23,956 Receiving Stream Name Receiving Stream Class & Index Number SC Drainage Area 39,543 SF Existing Impervious Area 0 SF Proposed Impervious Area 23,956 SF % Impervious Area (total) 60.6% Impervious Surface Area On -site Buildings or Lot BUA 4,830 SF On -site Streets 0 SF On -site Parking 16,136 SF On -site Sidewalks 2,990 SF Other on -site 0 SF Future 0 SF Off -site 0 SF Total: 23,956 SF Runoff Calculations (Simple Method) NCDENR Design Runoff (in) 1.5 V 0 6 Total Area (sf) 39,543 39,543 39,543 Coverage 60.6% 0.0% 60.6% R(v) 0.595 / 0.050 0.595 Rainfall Volume 2,942 c/ 0 11,769 NCDENR 1.5 : 2,942 STORMWATER MANAGEMENT CALCULATIONS - INFILTRATION BASIN DESIGN Project Drainage Area Infiltration Basin Infiltration Basin Information Monteray Greens By: mjm 1 Date : 02/02/11 elevation area (msl) A Storage Elevation: 9.0 3,077 Bottom of basin: 6.5 1,329 ESHWT Elev.: 4.5 (msl) Permeability: 20.0 (in/hr) Available Storage Volume: 5,508 (cf) Required NCDENR Volume: 2,942 (cf) NCDENR Drawdown Calculations Average Hydraulic Gradient: 1.6 (ft/ft) Drawdown Rate: 1.657 (cfs) NCDENR Drawdown Time: 0.04 Days 10 yr, 2 hr management capabilities 10 yr, 2 hr rainfall: 3.11 (inches) Runoff Volume: 6,100 (Cf) Basin Volume: 5,508 (cf) 2-hr Infiltration Volume: 11,933 (CD Additional Storage: (Cf) Total Volume Managed: 17,440 (cf) 1 OY Prepared by Albemarle and Associates, Ltd. Peak Runoff Calculations Project Name: Greens #1 Drainage Area = 0.91 (ac) Impervious Area On -site Buildings or Lot BUA On -site Streets On -site Parking On -site Sidewalks/Concrete Other on -site Pervious Area Remaining Runoff Rate (excluding storage c Area "C" (ac) 0.11 1.00 0.00 0.95 0.37 0.95 0.07 0.95 0.00 0.95 0.36 0.20 Total: 0.91 Design Event : Weighted Runoff Coefficient: Average Intensity: stdevelooed Peak Discharge: Impervious Area On -site Buildings or Lot BUA On -site Streets On -site Parking On -site Sidewalks/Concrete Other on -site Pervious Area Remaining year hour 1 24 0.66 0.132 (in/hr) 0.079 (cfs - into BMP) (excluding storage devices) Area "C" (ac) C*A 0.11 0.00 0.35 0.07 0.00 HN MM depth 3.17 C*A 0.00 1.00 0.00 0.00 0.95 0.00 0.00 0.95 0.00 0.00 0.95 0.00 0.00 0.95 0.00 0.91 0.20 0.18 Total: 0.91 0.18 Design Event, year 1 Weighted Runoff Coefficient: 0.20 Average Intensity: 0.132 levelooed Peak Discharge : 0.024 hour depth 24 3.17 (in/hr) Postdeveloped Peak Discharge: 0.112 (cfs - see calculations from BMP) PermitNumber:� (to be provided by DWQ) Drainage Area Number: l Infiltration 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. Important maintenance procedures: — The drainage area will be carefully managed to reduce the 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. After the infiltration basin is established, it will be inspected once a quarter and within storm event greater than 1.0 inches (or 1.5 inches if in a Coastal kc cords of opera'Cin and maintenance will be kept in a known set location and will be avalia Die upon request, i BMl' element: I Potential problem: I How 1 will remediate the problem: i _ •` infiitration basin i erosive guiiies have formed. remove the gully, and then plant a I one-iiwe iertiiizer appiicaiiou. ^ i I Ue FlFu u ciacaeii 01 i i�epidie'uie pipe. i I •_ __..,icahlcl,. I I Erosion is occurring in the Regrade the swale if necessary to i control devices such as reinforced turf matting or riprap to avoid c__— n_.. o n--- 1 ,.477 BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than spraying. The main treatment area 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 are Remove the plants by hand or by 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 shows that the embankment needs re air. 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 NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. c,.-... 01WAI1 o....:., n VAI o.... o n. -- I -f 4 Permit (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:Monteray Greens BMP drainage area Print name:Israel Golasa Title:President Address:PO Box 120, Kitty Hawk, NC, 27949 Phone:252-480-0009 Signature: Date: Z ' 2 ' 1 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`,yy� , r�Q.,J4 a Notary Public for the State of r+k L�, , County of I do hereby certify that .ax—L3lrn.e.1 Id -so— personally appeared before me this 6� 't-t day of r, bt,,a., l I , and acknowledge the due execution of the forgoing infiltration basin maintenance irements. Witness my h d and official seal, t'69 . IPATRICIA M. NOTARY DARE COUNUTYNC SEAL My commission expires Permit No.sW r" I IUO3 M(A no be provided by DWQ) _ FEB 04 LV11 OF WA7Fg, G ��� (#Bf+ �E�181f�RMWATER MANAGEMENT PERMIT APPLICATION FORM o�C WDENR YwV �`If1 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. I. PROJECT INFORMATION Project Name Monterey Greens Contact Person Michael J. Morway, PE Phone Number 252 441-2113 Date Drainage Area Number II. DESIGN INFORMATION Site Chararteristlrs Drainage area Impervious area Percent impervious Design rainfall depth Peak Flow Calculations 1-yr. 24-hr rainfall depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr discharge Post -development 1-yr, 24-hr discharge Pre/Post 1-yr, 24-hr peak flow control Storage Volume: Non -SA Waters Minimum design volume required Design volume provided Storage Volume: SA Waters 1,5' runoff volume Pre -development 1-yr, 24-hr runoff volume Post -development 1-yr, 24-hr runoff volume Minimum required volume Volume provided Soils Report Summary Soil type Infiltration rate SHWT elevation Basin Design Parameters Drawdown time Basin side slopes Basin bottom elevation Storage elevation Storage Surface Area Top elevation Basin Bottom Dimensions Basin length Basin width Bottom Surface Area 11,113600 f? 7,651.00 fe 0.69 % 1.50 in ✓ 3.17 in 0.13 in/hr 0.01 ff'/sec 0.02 ft'/sec 0.01 ft'/sec 930.00 ft' 1,624.00 ft' n/a ft' ft' ft' ft' ft' NhC 20.00 infhr 4.50 fmsl 1.00 days 3.00 :1 6b0 fmsl V 9.00 fmsl '✓ 1,329.00 ftz ✓ 9.00 fmsl varies it varies it 173.00 f? .✓ OK for non -SA waters OK OK OK Iy Fonn SW401-IMttration Basin-Rev.4 Pans I. a II. Design Summary, Page 1 of 2 Permit No. (to be provided by DWO) Additional Information Maximum runoff to each inlet to the basin? Length of vegetative filter for overflow Distance to structure Distance from surface waters Distance from water supply well(s) Separation from impervious soil layer Naturally occuring soil above shwl Bottom covered with 4-in of clean sand? Proposed drainage easement provided? Capures all runoff at ultimate build -out? Bypass provided for larger storms? Pretreatment device provided 0.45 ac-in 30.00 It 2 -e Ej It >50' ft >50' ft >24' ft 24' ft y (Y or N) n/a (Y or N) y (YorN) y (Y or N) OK OK OK OK OK OK OK OK OK OK OK Form SW401-Infihration Basin,Rev.4 Parts I. a I. Design Summary, Page 2 of 2 Permit (to be provided by DWQ) .',m.•/;:� .tom :f r /.A Ani' �v S III'.'REQUIRED;ITEMS'CHECKLIST, I,'" 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. C7s> 1 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - OH -site drainage (if applicable), - Delineated drainage basins (include Rational 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 details for the infiltration basin showing: Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment deanout, - 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. MSr� C� ( 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. v4]�t 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. lc�\ C \o \ 6. A construction sequence that shows how the infiltration basin will be protected from sediment until the entire drainage area is stabilized. K� tA-_ 7. The supporting calculations. Wtk 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. NSh 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1 Volumetric Runoff Calculations Simple Method Project Name: Monteray Greens Project Area Description - DRAINAGE AREA #2 Basin Information existing 0 0 0 0 0 0 0 0 existing (to remain) 0 0 0 0 0 0 0 0 proposed (additional) 2,123 0 5,458 70 0 0 0 7,651 Receiving Stream Name Receiving Stream Class & Index Number SA, HWO Drainage Area 11,113 SF Existing Impervious Area 0 SF Proposed Impervious Area 7,651 SF % Impervious Area (total) 68.8% Impervious Surface Area On -site Buildings or Lot BUA 2,123 SF On -site Streets 0 SF On -site Parking 5,458 SF On -site Sidewalks 70 SF Other on -site 0 SF Future 0 SF Off -site 0 SF Total: 7,651 SF Runoff Calculations (Simple Method) NCDENR Design Runoff (in) 1.5 0 6 Total Area (so 11,113 11,113 11,113 Coverage 68.8% 0.0% 68.8% R(v) 0.670 0.050 0.670 Rainfall Volume 930 0 3,721 NCDENR 1.5: 930 O� STORMWATER MANAGEMENT CALCULATIONS - INFILTRATION BASIN DESIGN Project Drainage Area Infiltration Basin Infiltration Basin Information Monteray Greens By: 2 Date : elevation area (msl) A Storage Elevation: 9.0 1,328 Mid level: 8.0 664 996 Bottom of basin: 6.5 173 628 ESHWT Elev.: 4.5 (msl) Permeability: 20.0 (in/hr) Available Storage Volume: 1,624 (cf) Required NCDENR Volume: 930 (cf) NCDENR Drawdown Calculations Average Hydraulic Gradient: 1.6 (ft/ft) Drawdown Rate: 0.565 (cfs) NCDENR Drawdown Time: 0.03 Days 10 yr, 2 hr management capabilities 10 yr, 2 hr rainfall: 3.11 (inches) Runoff Volume: 1,929 (cf) Basin Volume: 1,624 (cf) 2-hr Infiltration Volume: 4,065 (cf) Additional Storage: 0 (cf) Total Volume Managed: 5,689 (cf) Prepared by Albemarle and Associates, Ltd. Peak Runoff Calculations Project Name : Monteray Greens #2 Drainage Area = 0.26 o? e (ac) Postdevelopment Runoff Rate (excluding storage d Area "C" (ac) Impervious Area On -site Buildings or Lot BUA 0.05 1.00 On -site Streets 0.00 0.95 On -site Parking 0.13 0.95 On -site Sidewalks/Concrete 0.00 0.95 Other on -site 0.00 0.95 Pervious Area Remaining 0.08 0.20 Total: 0.26 Design Event, year hour 1 24 Weighted Runoff Coefficient: 0.73 Average Intensity: 0.132 (in/hr) Postdeveloped Peak Discharge: 0.024 (cfs - into BMP) Predevelopment Runoff Rate (excluding storage devices) Area "C" (ac) Impervious Area On -site Buildings or Lot BUA 0.00 1.00 On -site Streets 0.00 0.95 On -site Parking 0.00 0.95 On -site Sidewalks/Concrete 0.00 0.95 Other on -site 0.00 0.95 Pervious Area Remaining 0.26 0.20 _ Total: 0.26 Design Event : year 1 Weighted Runoff Coefficient: 0.20 Average Intensity: 0.132 Predeveloped Peak Discharge: 0.007 hour 24 (in/hr) C*A 0.05 0.00 0.12 0.00 0.00 0.02 0.19 depth 3.17 C*A 0.05 depth 3.17 Postdeveloped Peak Discharge: 0.112 (cfs - see calculations from BMP) Permit Number: 5"-) 7u' i too M4 (to be provided by DWQ) Drainage Area Number:_�L Infiltration 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. Important maintenance procedures: — The drainage area will be carefully managed to reduce the 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. After the infiltration basin is established, it will be inspected once a quarter and within 4 ^ urs r er eve y starm event greater than 1.0 inches (or 13 inches if in a Coastal ..._ .I._ , ,. Records of operation and maintenance will be kept in a known set location ano will oe avauame upon request a's toll FS&. -AnI_-M1_1C7ns L......rc lountl_ g._,_i. BMP element: I Potential problem: I How 1 will remediate the problem: i1c errrire Drm' i.- Tie _.erin:eter of th. I .yeas of bare soil an" ! or Rngrarc t :c soi_ nc_, ssa:y t infiitration basin i erosive gullies have formed. i remove the guiiy, and then plant a I gro: m CO.'- anc :.arcr ura; iilu:e an•_i e i I one-tuue feriiiizer application. ICr^tfCC •SCt'tiC: ;!Iv) Vt :3"1': 11_6 C:V'llI,C:S �.: �`u LL'ir�_ n I 11tie pipe is Ciacxeu VI I Replace ule pipe. Erosion is occurring in the Regrade the swale if necessary to �aL :• «A .. .� control devices such as reinforced turf matting or riprap to avoid A.1,..0 ...nhlemc ...ah e.nc:nn V__ 0111An, r_f.:.«.:.._ n--:_ L .O l n_..O n--- 1 _F'Z BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than spraying. The main treatment area 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 are Remove the plants by hand or by 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 shows that the embankment needs repair. 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 NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. 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:Monteray Greens BMP drainage area Print name:Israel Golasa Title:President Address:PO Box 120 Kitty Hawk NC 27949 Phone:252-480-0009 Signature: Date: 2 - Z - 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, �,I' e�Q M . g r a4 a Notary Public for the State of Cara 1: vta , County oft do hereby certify that rn-el 671a laS2 personally appeared before me this day of t ,201 I , and acknowledge the due execution of the forgoing infiltration basin maintenanc uirements. Witness my h d and official seal, 50 > F ATRICIA M. GRAYNOTARY PUBLICARE COUNTY, NC' SEAL My commission expires C..— OUTAAJ n1 A4 D.... ] D--- i -r l Permit No. 5 W 709 W, a . (to be provided by DWQ) ®l EXPRESS STORMWATER MANAGEMENT PERMIT APPLICATION FORM NCDENR FEB 0 7 2011 401 CERTIFICATION APPLICATION FORM INFILTRATION BASIN SUPPLEMENT NCDENR This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. 11. PROJECT INFORMATION Project Name Monterey Greens Contact Person Michael J. Morway, PE Phone Number 252-441-2113 Date 2-Feb Drainage Area Number 3 II. DESIGN INFORMATION Site Characteristics Drainage area 39,027.00 ft' v ✓ Impervious area 14,203.00 fe Percent impervious 0.36 % ✓ Design rainfall depth 1.50 in Peak Flow Calculations 1-yr, 24-hr rainfall depth 3.17 in 1-yr, 24-hr intensity 0.13 n1hr Pre -development 1-yr, 24-hr discharge 0.02 fl'/sec Post -development 1-yr, 24-hr discharge 0.06 ft'Isec Pre/Post 1-yr, 24-hr peak flow control 0.04 fit'/sec Storage Volume: Non -SA Waters Minimum design volume required 1,842.00 ft' ✓ Design volume provided 2,110.00 ft' y Storage Volume: SA Waters 1.5' runoff volume n/a it, Pre -development 1-yr, 24-hr runoff volume ft' Post -development 1-yr, 24-hr runoff volume ft' Minimum required volume it, Volume provided to Soils Report Summary Soil type Os Infiltration rate 20.00 in/hr SHWT elevation 1.50 fmsl Basin Design Parameters Drawdown time 1.00 days Basin side slopes 3.00 :1 Basin bottom elevation 4.50 fmSI V Storage elevation 5.50 frnsl V Storage Surface Area 3,100.00 f 2 v Top elevation 5.50 fmsl Basin Bottom Dimensions Basin length varies ft Basinwidth varies It Bottom Surface Area 1,300.00 e OK for non -SA waters OK OK OK F.-I'm Form SW401-Infiaraton Basm-Rev.4 Parts I. & II. Design Summary, Page 1 of 2 Permit No. (to be provided by DWQ) Additional Information Maximum runoff to each inlet to the basin? 0.58 ac-in OK Length of vegetative filter for overflow 30.00 ft OK Distance to structure 85.00 fl OK Distance from surface waters 15.00 ft Too close to surface waters Distance from water supplywell(s) >50' ft OK Separation from impervious soil layer >24' ft OK Naturally occuring soil above shwt 24' ft OK Bottom covered with 4-in of clean sand? y (Y or N) OK Proposed drainage easement provided? nla (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 noff across pervious surface Form SW401-Infiftration Basin-Rev.4 Parts I. & 11. Design Summary, Page 2 of 2 Permit No. (to be provided by DWQ) IIIAEQUIRE D:ITEMSCHECKLIST ;.. '3 z` 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. �t� C2s> 1 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, - Proposed 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: - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cieanout, - Flow distribution detail for inflow, Vegetated filter, and - Pretreatment device. WQ � C la 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. MSr� C 5-�) 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. f ' 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 tonn. County soil maps are not an acceptable source of soils information. hP\ C \o \ 6. A construction sequence that shows how the infifiration basin will be protected from sediment until the entire drainage area is stabilized. i P—r� 7. The supporting calculations. tC�M " k 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. NSr\ —t�L 9. A copy of the deed restrictions (d required). Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1 Volumetric Runoff Calculations Simple Method Project Name: Monteray Greens Project Area Description - DRAINAGE AREA #3 Basin Information existing 0 0 0 0 0 0 0 0 existing (to remain) 0 0 0 0 0 0 0 0 proposed (additional) 234 0 0 3,695 10,274 0 0 14,203 Receiving Stream Name Receiving Stream Class & Index Number SA, HWQ Drainage Area 39,027 SF Existing Impervious Area 0 SF Proposed Impervious Area 14,203 SF % Impervious Area (total) 36.4% Impervious Surface Area On -site Buildings or Lot BUA 234 SF On -site Streets 0 SF On -site Parking 0 SF On -site Sidewalks 3,695 SF Other on -site 10,274 SF Future 0 SF Off -site 0 SF Total: 14,203 SF Runoff Calculations (Simple Method) NCDENR 10yr - 24hour Design Runoff (in) 1.5 0 3 6 Total Area (so 39,027 39,027 39,027 39,027 Coverage 36.4 % 0.0% 36.4 % 36.4 % R(v) 0.376 0.050 0.378 0.378 Rainfall Volume 1,842 0 3,684 7,367 0.00 (cfs) 2.56 (cfs) NCDENR 1.5' : 1,842 NCDENR Pre/Post : STORMWATER MANAGEMENT CALCULATIONS - INFILTRATION BASIN DESIGN Project Drainage Area Infiltration Basin Infiltration Basin Information Monteray Greens By: mjm #3 Date : 02/02/11 golf course elevation area (msl) (sf) Storage Elevation: 5.5 3,100 Mid level: 5.1 2,200 1060 Bottom of basin: 4.5 1,300 1050 ESHWT Elev.: 2.5 (msl) Permeability: 20.0 (in/hr) Available Storage Volume: 2,110 (cf) Required NCDENR Volume: 1,842 (cf) NCDENR Drawdown Calculations Average Hydraulic Gradient: 1.1 (ft/ft) Drawdown Rate: 1.321 (cfs) NCDENR Drawdown Time: 0.02 Days 10 yr, 2 hr management capabilities 10 yr, 2 hr rainfall: 3.11 (inches) Runoff Volume: 3,819 (cf) Basin Volume: 2,110 (cf) 2-hr Infiltration Volume: 9,513 (cf) Additional Storage: 176 (cf) Total Volume Managed: 11,799 (cf) Prepared by Albemarle and Associates, Ltd. Peak Runoff Calculations Project Name: a] Greens Drainage Area 0.90 (ac) Runoff Rate (excluding storage c Area "C" (ac) C*A Impervious Area On -site Buildings or Lot BUA 0.01 1.00 0.01 On -site Streets 0.00 0.95 0.00 On -site Parking 0.00 0.95 0.00 On -site Sidewalks/Concrete 0.08 0.95 0.08 Other on -site 0.24 0.95 0.22 Pervious Area Remaining 0.57 0.20 0.11 Total: 0.90 0.42 Design Event : year hour depth 1 24 3.17 Weighted Runoff Coefficient: 0.47 Average Intensity: 0.132 (in/hr) stdeveloped Peak Discharge: 0.056 (cfs - into BMP) Predevelopment Runoff Rate (excluding storage devices) Area "C" C*A (ac) Impervious Area On -site Buildings or Lot BUA On -site Streets On -site Parking On -site Sidewalks/Concrete Other on -site Pervious Area Remaining lot 0.90 Total: 0.90 Design Event : year 1 Weighted Runoff Coefficient: 0.20 Average Intensity: 0.132 leveloped Peak Discharge : 0.024 1.00 0.95 0.95 0.95 0.95 0.20 hour 24 (in/hr) depth 3.17 Postdeveloped Peak Discharge: 0.112 (cfs - see calculations from BMP) Permit Number: "V1 00 j (to be provided DWo Drainage Area Number: Infiltration 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. Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the infiltration basil. - ImmediateIy after the infiltration basin is established, 'UhC vcfictaho;l VVill be watered twice weekly if needed until the plants become established (commonly sb ... Cut ks). :.a IIt,I it iii 0: till Ii Yfa:16l i,iI 1;6.,ii,i. iii iR ., i133 i,.i:.A u .,.. l,li- iiilltli ik iLI I Il�I;QII that is required to establish the vegetation. - The vegetation in and around the basi t : i be ;.all: r". :cd a hcigni of _; tie inrlit a .}n asin is established, it will be inspected once a quarter and within ........... i U3Y2Z C3C33iYiil: PUiCL^.3G1 tJl i:'u'SClli: IIlJi9 S V:S3 :C:::CUSGIC 3::C �2L JiCf33: I .. I-:...�:.� �.. m^.� ua Yr. n;n i:cu. I Icu:u:�c u::: i�_ry, = _ 177.. ....ne_ In ............. BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than s ra in . The main treatment area 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 are Remove the plants by hand or by 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. I appropriate professional shows that the embankment I I needs repair. I I L IIC u uLlut UCVIIC I I.,IV`,.',�u(� 3 ab UlUll SMI. I Lwdll VuIIIICVVIICIUCvlt C. VID�JU,C of the sediment off -site. The outlei lievice is damaKeli Repair ur replace the okluet device. L lLC 1CLC1Yl13�C, nalCl liL VJ3Vlt V3 VLLICI J30lll Vf I LV3ltdl! LLtC 3Y1.. V1Y lJ1V1! Vl IYQLCL damage have occurred at the I Quality 401 Oversight Unit at 919- I mxult_ I l iii 786. 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:Monteray Greens BMP drainage area Print name:lsrael Golasa Title:President Address:PO Box 120 Kitty Hawk NC 27949 Date: 2.2. ' 11 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. M, ��czAl allotary Public for the State of Aa ( 'hQ CStn('re) County o L do hereby certify that (a -SO, personally appeared before me this day of re-b ra-a-r y and acknowledge the due execution of the forgoing infiltration basin maintenance re ents. Witness my hand�ial seal, g,A7RICIA Ilq GOTARY p RAYRECOS UBLIC---__Nn NC SEAL My commission expires a, z c.._... QIIIAM o....:.. nP'A' o..., a o..-.. 1 . fF l ror uenn use urvu Reviewer: _ Y✓�- �, �A North Carolina Department of Environment and Submit: Natural Resources NCDENR Request for Express Permit Review Time Confirm, FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. FAX or Email the completed form to Express Coordinator along with a completed DETAILED narrative, site plan (PDF file) and vicinity map (same items expected in the application package of the project location. Please include this form in the application package. • Asheville Region -Alison Davidson 828-296-4698;alison.davidson(ancdenr.gov • Fayetteville or Raleigh Region -David Lee 919-791-4203; david.lee(d)ncdenr.gov • Mooresville & -Patrick Grogan 704.663.3772 or patrick.groganCa ncdenr.gov • Washington Region -Lyn Hardison 252.946-9215 or Iyn.hardison anncdenr.,qov • Wilmington Region -Janet Russell 910-350-2004 or janet.russell(glncdenr.gov NOTE. Project application received after 12 noon will be stamped in the following work day. SW SW SW SW SW Project Name: MONETRAY GREENS [AKA FUN PARK 1 County: CURRITUCK Applicant: ISRAEL GOLASA Company: G. HOLDINGS Address: 2229 S. CROATAN HWY City: NAGS HEAD, Stale: NC Zip: 27959 Phone: 252-480-0009, Fax: 252-480-0889, Email: _(, Physical Location: FROM INTERSECTION OF NC-12 AND US-158 PROCEED NORTH ALONG NC-12 TO COROLLA. FROM INTESECTION W/ ALBECORE STREET CONTINUE 600 FEET, TURN LEFT-MALIA Project. Drains into CURRITUCK SOUND waters — Water classification SC (for classification see-http://h2o.enr.stale.nc.us/bims/reports/reportsWB,html) Project Located in PASQUOTANK River Basin. Is project draining to class ORIN waters? N , within % mile and draining to class SA waters N or within 1 mile and draining to class HOW waters? N Engineer/Consultant: MIKE MORWAY Company: ALBEMARLE ASSOCIATES EXPRESS Address: PO BOX 3989 City: KILL DEVIL HILL, State: NC Zip: 27948-_ Phone: 252-441-2113, Fax: 252-441-0965, Email: mikem@albemarleassociates.com FEB 07 2011 SECTION ONE: REQUESTING A SCOPING MEETING ONLY ❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER: _ SECTION TWO: CHECK ONLY THE PROGRAM (S) YOU ARE REQUESTING FOR EXPRESS PERMITTING ❑ 401 Unit ❑ Stream Origin Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ IntermittentiPerennial Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ 401 Water Quality Certification ❑ Isolated Wetland ( linear fl o r acres) ❑ Riparian Buffer Authorization El Minor Variance ❑ Major General Variance ® State Stormwater ❑ General ❑ SFR, ❑ SFR < 1 ac. ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Other ❑ Low Density ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)] ❑ High Density -Detention Pond _ # Treatment Systems ® High Density -Infiltration 3#Treatment Systems ❑ High Density -Bio-Retention _ # Treatment Systems ❑ High Density —SW Wetlands _ # Treatment Systems ❑ High Density -Other _ # Treatment Systems / ® MOD:® Major ❑ Minor ❑ Plan Revision ❑ Redev. Exclusion SW 7091003 (Provide permit#) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ® Land Quality ® Erosion and Sedimentation Control Plan with 2_3 acres to be dislurbed.(CK # 9'_653r(for DENR use)) `4 195, n a SECTION THREE — PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT (for both scoping and express meeting request) Wetlands on Site ❑ Yes ❑ No Wetlands Delineation has been completed: ❑ Yes ❑ No US ACOE Approval of Delineation completed: ❑ Yes ❑ No Received from US ACOE ❑ Yes ❑ No .._-.-. - For DENR use Fee —Sp ht for multiple permds: (Check# ��? S 29 1 Buffer Impacts: ❑ No ❑ YES: ac re(s) Isolated wetland on Property ❑ Yes ❑ No 404 Application in Process wf US ACOE: ❑ Yes ❑ No Permit Tnta1FPndmnnnt S Ilmm� SUBMITTAL DATES Fee SUBMITTAL DATES Fee CAMA $ Variance (❑ Maj; ❑ Min) $ SW (❑ HD, ❑ LD, ❑ Gen) $ g�,�L 401: $ LQS $ —1j O Stream Deter— - $ NCDENR EXPRESS March 2009 EXPRESS Number: IE / PRESS (to be provided byDWQ) Drainage Area Number. ifJihM§n Basin Operation and Maintenance Agreement NC ®ENR 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. Important maintenance procedures: — The drainage area will be carefully managed to reduce the 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. After the infiltration basin is established, it will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or iS inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is presenL Remove the 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 is 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. Form SW401-Infiltration Basin O&M-Rev.3 Page 1 of 3 w BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than spraying. The main treatment area 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 are Remove the plants by hand or by 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 shows that the embankment needs repair. 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 NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Form SW401-Infiltration Basin O&M-Rev.3 Page 2 of 3 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:Corolla Fun Park BMP drainage area Print nameAsreal Golasa Address:PO Box 120, Kitty Hawk, NC, 27948 Phone:252-480-0009 Signature: ( -&sl Date: Q - 3 o -D rl 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,-h-, c ,a M, �,,x�/ a Notary Public for the State of Nor County of_do hereby certify that a_$ZL'4 C" la.-'r, personally appeared before me this A76 day of hQr QOo 4 , and acknowledge the due execution of the forgoing infiltration basin maintenance requirements. Witness my hand and official seal, IMS SEAL My commission expires 9- /`/ - C2O // Form SW401-infiltration Basin O&M-Rev.3 Page 3 of 3