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HomeMy WebLinkAboutSW8061113_CURRENT PERMIT_20070201STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE C)WZOADl WYYMMDD r C�0� W A TF9Q ,o 7 ' 0 Y February 1, 2007 Mr Matthew Tappero, Manager Guide Group, LLC P O Box 147 Harbinger, NC 27941 Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Subject: Stormwater Permit No. SW8 061113 North River Club - Section Two Low Density Subdivision with a Curb Outlet System Carteret County Dear Mr Tappero Alan W Klimek P E Director Division of Water Quality The Wilmington Regional Office received a complete Stormwater Management Permit Application for North River Club - Section Two on December 8, 2006 Staff review of the plans and specifications has determined that the protect, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 We are forwarding Permit No SW8 061113, dated February 1, 2007, for the construction of the subject project This permit shall be effective from the date of Issuance until May 2, 2016, in accordance with Permit No SW8 050543, North River Club Master Plan & Golf Course, and shall be subject to the conditions and limitations as specified therein, and does not supercede any other agency permit that may be required If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within sixty (60) days following receipt of this permit This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P O Drawer 27447, Raleigh, NC 27611-7447 Unless such demands are made this permit shall be final and binding If you have any questions, or need additional information concerning this matter, please contact either Paul Bartlett or me at (910) 796-7215 Sincerely.-` `� 1 ,4� Edward Beck Regional Supervisor Surface Water Protection Section ENB/ptb S 1WQSISTORMWATERIPERMIT1061113 feb07 cc Michael J Morway, P E, Albemarle & Associates, Ltd Katrina Marshall, Carteret County Inspections Division of Coastal Management Paul T Bartlett, P E Wilmington Regional Office Central Files N�% h Carolina AVA(rally North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington NC 28405 Phone (910) 796-7215 Customer Service Wilmington Regional Office Internet wH" ncwateroualiri ore Fax (910)350-2004 1-877-623-6748 An Equal OpportunitylAHirmative Action Employer— 50% Recycled/10% Post Consumer Paper State Stormwater Management Systems Permit No SW8 061113 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT LOW DENSITY DEVELOPMENT WITH A CURB OUTLET SYSTEM 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 Matthew Tappero & Guide Group, LLC North River Club - Section Two Carteret County FOR THE construction, operation and maintenance of a low density subdivision with a curb outlet system 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 The Permit shall be effective from the date of issuance until May 2, 2016, in accordance with Permit No SW8 050543, North River Club Master Plan & Golf Course, and shall be subject to the following specific conditions and limitations I. DESIGN STANDARDS 1 The project is permitted for 124 lots, each limited to a maximum square feet of built -upon area as listed on Attachment A to this permit, as defined by the stormwater rules, and as indicated in the approved plans CAMA regulations may reduce the built -upon area within the AEC , 2 Built -upon area for the proposed Section Two tract is also limited for the project total and areas within and outside % mile of SA receiving waters as listed by Attachment B to this permit, as defined by the stormwater rules, and as indicated in the approved plans 3 The overall North River Club subdivision must be maintained at the density levels specified in the Master Plan stormwater permit, SW8 050543 4 This project proposes a curb outlet system Each designated curb outlet swale or 100' vegetated area shown on the approved plan must be maintained at a minimum of 100' long, maintain 5 1 (H V) side slopes or flatter, have a longitudinal slope no steeper than 5 /o, carry the flow from a 10 year storm in a non -erosive manner, maintain a dense vegetated cover, and be located in either a dedicated common area or a recorded drainage easement 5 No piping shall be allowed except those minimum amounts necessary to direct runoff beneath an impervious surface such as a road or under driveways to provide access to lots Page 2 of 5 F�I State Stormwater Management Systems Permit No SW8 061113 6 Runoff conveyances other than the curb outlet system swales, such as perimeter ditches, must be vegetated with side slopes no steeper than 3 1 (H V) 7 Approved plans and specifications for projects covered by this permit are incorporated by reference and are enforceable parts of the permit II SCHEDULE OF COMPLIANCE 1 Curb outlet swales, vegetated areas and other vegetated conveyances shall be constructed in their entirety, vegetated, and be operational for their intended use prior to the construction of any built -upon surface, per the approved plans 2 During construction, erosion shall be kept to a minimum and any eroded areas of the swales or other vegetated conveyances will be repaired immediately 3 The permittee shall at all times provide the operation and maintenance necessary to operate the permitted stormwater management systems at optimum efficiency to include a Inspections b Sediment removal c Mowing, and revegetating of the side slopes d Immediate repair of eroded areas e Maintenance of side slopes in accordance with approved plans and specifications f Cleaning and repair of catch basin grates, flumes, piping, and the flow spreader mechanism 4 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 the approved plans, regardless of size 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 or sale of the project area The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval was sought f Filling in, piping, or altering any vegetative conveyance shown on the approved plan 5 The Director may determine that other revisions to the project should require a modification to the permit 6 The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon area Once the lot transfer is complete, the built -upon area may not be revised without approval from the Division of Water Quality, and responsibility for meeting the built -upon area limit is transferred to the individual property owner 7 The permittee must certify in writing that the project's stormwater controls, and impervious surfaces have been constructed within substantial intent of the approved plans and specifications Any deviation from the approved plans must be noted on the Certification The permittee shall submit the Certification to the Division within 30 days of completion of the project 8 The permittee shall submit all information requested by the Director or his representative within the time frame specified in the written information request Page 3of5 State Stormwater Management Systems Permit No SW8 061113 9 Each lot in the subdivision covered by this permit will maintain a minimum 30 foot wide vegetative buffer between all impervious areas and surface waters 10 Deed restrictions are incorporated into this permit by reference and must be recorded with the Office of the Register of Deeds prior to the sale of any lot 11 All roof drams must terminate at least 30' from the Mean High Water mark 12 Recorded deed restrictions must include, at a minimum, the following statements related to stormwater management a The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number 061113, as issued by the Division of Water Quality under NCAC 2H 1000 b The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the Stormwater Management Permit c These covenants are to run with the land and be binding on all persons and parties claiming under them d 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 e Alteration of the drainage as shown on the approved plans may not take place without the concurrence of the Division of Water Quality The maximum built -upon area per lot is listed in Attachment A to this permit The maximum built -upon area for the project total and areas within and outside '/ mile of SA receiving waters is listed in Attachment B to this permit 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, driveways, and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools g Filling in, piping or altering any 3 1 vegetated conveyances (ditches, swales, etc } associated with the development except for average driveway crossings, is prohibited by any persons h Lots within CAMA's Area of Environmental Concern may have the permitted built - upon area reduced due to CAMA jurisdiction within the AEC i Filling in, piping or altering any designated 5 1 curb outlet swale or vegetated area associated with the development is prohibited by any persons J A 30' vegetated buffer must be maintained between all built -upon area and the Mean High Water line of surface waters k All roof drains shall terminate at least 30' from the Mean High Water mark I Each designated curb outlet swale or 100' vegetated area shown on the approved plan must be maintained at a minimum of 100' long, maintain 5 1 (H 1) side slopes or flatter, have a longitudinal slope no steeper than 5%, carry the flow from a 10 year storm in a non -erosive manner, maintain a dense vegetated cover, and be located in either a dedicated common area or a recorded drainage easement 13 The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made Page 4 of 5 State Stormwater Management Systems Permit No SW8 061113 14 The permittee must submit a copy of the recorded deed restrictions within 30 days of the date of recording 15 Prior to transfer of ownership, the swales must be inspected and determined to be in compliance with the permit Any deficiencies will be repaired or replaced prior to the transfer 16 The final plats for the project will be recorded showing all required Swale easements and common areas, in accordance with the approved plans III GENERAL CONDITIONS Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Water Quality, in accordance with North Carolina General Statutes 143-215 6A to 143-215 6C 2 The permit issued shall continue in force and effect until revoked or terminated 3 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 4 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 Title 15A of the North Carolina Administrative Code, Subchapter 2H 1000, and North Carolina General Statute 143-215 1 et al 5 The permit is not transferable to any person or entity except after notice to and approval by the Director The Director may require modification or revocation and reissuance of the permit to change the name and incorporate such other requirements as may be necessary A formal permit transfer request must be submitted to the Division of Water Quality accompanied by the appropriate fee, documentation from both 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 the terms and conditions of this permit until the Division approves the permit transfer 6 The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances imposed by other government agencies (local, state and federal) which have jurisdiction If any of those permits or approvals result in revisions to the plans, a permit modification must be submitted 7 The permittee grants permission to DENR Staff to enter the property during business hours for the purposes of inspecting the stormwater control system and it's components 8 The permittee shall notify the Division of Water Quality of any name, ownership or mailing address changes within 30 days Permit issued this the�1st day of February 2007 NORTti-CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Alan W Klimek, P E , Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 5 OFFICE USE ONLY Date Re Feived Fee Paid Permit Number 1 z I 10ro 14; z cx?o 30S11 5 w State of North Carolina Department of Environmental 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 Applicants name (specify the name of the corporation, individual, etc who owns the project) Guide GrouD. LLC Owner/Signing Official's name and title (person legally responsible for facility and compliance) hew Tappero — Manager 3 Mailing Address for person listed in item 2 above PO Box 147 City Harbinger State NC Zip Telephone Number ( 252 ) 491 — 2466 27941 4 Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc ) North River Club — Stormwater Management Plan — Section Two 5 Location of Project (street address) ` 169 Taylor Farm )Road City Be-aufort County Carteret 6 Directions to project (from nearest major intersection) _ pp ximately 2 '/1 miles Turn right onto Continue no along NC 101 from the intersection with US 70 for ro Ta for Farms Road & travel east for VR!pxmiately % mile 7 Latitude 347611 Longitude 766417 of project 8 Contact person who can answer questions about the project Name Michael Morway Telephone Number 252 1-2113 ll PERMIT INFORMATION 1 Specify whether project is (check one) X New Renewal Modification (Section Two under development - Project Master Plan permit # SW8 050543) Form SWU-101 Version 3 99 Page 1 of 4 2 If this application is being submitted as the result of a renewal or modification to an existing permit, list the Existing permit number SW8 050543 (Master Plan No) and its issue date (if known) May 2 2006 3 Specify the type of project (check. one) X Low Density High Density Redevelop 4 Additional Project Requirements (check applicable blanks) CAMA Major x Sedimentation/Erosion Control General Permit Other 404/401 Permit NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 Ill. PROJECT INFORMATION I In the space provided below, summarize how stormwater will be treated Also attach a detailed narrative (one to two pages) describing stormwater management for the project Section Two of the North River Club (low density master plan permit) includes single family lots, patio homes and condominiums Stormwater management conforms to master plan permit conditions by maintaining overall ` covers ere uirements and using open vegetated swales for conveyance to (non -required) treatment areas 2 Stormwater runoff from this project drains to the White Oak River Basin 3 Total Project Area 47 1 _ acres 4 Project Built Upon Area 39 1 _ _ % 5 How many drainage areas does the project have? 2 6 Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below Basin Information Drainage Area l Drainage Area 2 Receiving Stream Name Receiving Stream Class Drainage Area Existing Impervious* Area SEE ATTACHED SHEET SEE ATTACHED SHEET Proposed Impervious* Area % Impervious* Area (total) Impervious* Surface Area Drainage Area l Drainage Area 2 On -site Buildings On -site Streets On -site Parking On -site Sidewalks SEE ATTACHED SHEET SEE ATTACHED SHEET Other on -site Off -site Total Total * Impervious area is defined as the built upon area including but not limited to buildings, roads, parking areas sidewalks gravel areas, etc Form SWU-101 Version 3 99 Page 2 of 7 How was the offsite Impervious area listed above derived? NIA IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all Subdivisions, outparcels and future development prior to the sale of any lot If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment I The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality These covenants may not be Changed or deleted without the cone t of the ,ate /Se e ��n. 2 No more than l sg�iare jeer of any lot shall be covered by structures or impervious materials Impervious materials include asphalt, gravel, concrete, brit+; stone, slate, or similar material but do not include wood decking or the water surface of swimming pools 3 Swales shall not be filled in piped or altered except as necessary to provide driveway crossings 4 Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction. 5 All permitted runofffrom outparcels orfuture development shall be directed into the permitted stormwater control system These connections to the stormwater control system shall be performed in a manner that maintain the integrity and performance of the system as permitted By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot V SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form SWU-i0i Version 3 99 Page 3 of VI SUBMITTAL REQUIRMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ) A complete package includes all of the items listed below. The complete application package should be Submitted to the appropriate DWQ Regional Office. 1 Please indicate that you have provided the following required information by initialing in the space provided next to each item • Original and one copy of the Stormwater Management Permit Application Form ASA • One copy of the applicable Supplement Form (s) for each BMP • Permit application processing fee of S420 (payable to NCDENR)^ • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a not on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) VII. AGENT AUTORIZATION if you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section Designated agent (individual of firm) Albemarle and Associates, Ltd — Michael J Morway, P E Mailing Address PO Box 3989, 115 West St Clair Street City Kill Devil Hills State NC Zip_27948 Phone (252) 441-2113 Fax ( 252 ) 441-0965 Vlll APPLICANT'S CERTIFICATION 1 �?-9�Ja 74 1, (print or type name ojperson listed rn General Information, item 2) T hiw o Certify that the information included on this permit application form is, to the best of m owledge, correct and that the project will be nstructed in conformance with the approved plans, that the required deed restrictions and protective covejifihtt wiiAbe recorded, and that the proposed project complies with the requirements of 1 SA NCAC 2H 1000 Signature _.,j_ffl7%.oFa7 Form SWU-101 Version 3 99 Page 4 of 4 Permit No 5W D Q(o 4 t 13 (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM LOW DENSITY SUPPLEMENT This form may he photocopied for use as an original A low density project is one that meets the appropriate criteria for built upon area and transports stormwater runoff primarily through vegetated conveyances Low density projects should not have a discrete stormwater collection system as defined by 15A NCAC 2H 1002(18) Low density requirements and density factors can be found in 15A NCAC 2H 1005 through 1007 I. PROJECT INFORMATION Project Name ty", RI„ek CLuf3 JEcr„'r- T"'c=' Contact Person M IC- 4AeL S McaZL,.r" Phone Number (0-'�) 441 ^ 211 3 T_ Number of Lots f 2 4 Allowable Built Upon Area Per Lot* SEE R'('(Aftf1"1Ew *If lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allowable built upon area for each lot The attachment must include the project name, phase, page numbers and provide area subtotals and totals II. BUILT UPON AREA See the Stormwater Management Permit Application for specific language that must be recorded in the deed restrictions for all subdivisions For uniform lot sizes, complete the following calculation in the space provided below where • SA Site Area - the total project area above Mean High Water Wetlands may be excluded when the development results in high density pockets • DF Density Factor - the appropriate percent built upon area divided by 100 • RA Road Area - the total impervious surface occupied by roadways • OA Other Area - the total area of impervious surfaces such as clubhouses, tennis courts, sidewalks, etc • No Lots - the total number of lots in the subdivision • BUA/Lot - the computed allowable built upon area for each lot including driveways and impervious surfaces located between the front lot line and the edge of pavement Form SWU-104 Rev 3 99 Page 1 of 2 3 (SA x DF) - RA - OA = BUA No Lots Lot Calculation DF= >� br- MAX Ru�QwA�'jL1G F3VA �� La'�� 2 /2 305'k, 75 7 �o,4c))—LSe,541+lic))973], L J = HZa5W% sF oy, c�(,� L k2 5 $°I sfi A1u�wAt3u� s�z ����M M. REQUIRED ITEMS CHECKLIST Od �0� p1 k4 Cl?- "'L S, 4 o.h kri < 219 7'/zAZt SA « �� s� < 3012,0 Initial in the space provided to indicate that the following requirements have been met and supporting documentation is provided as necessary If the applicant has designated an agent on the Stormwater Management Permit Application Form, the agent may initial below —1 Applicants Initials a A 30 foot vegetative buffer is provided adjacent to surface waters Projects in the Neuse River basin may require additional buffers b Deed restriction language as required on form SWU-101 shall be recorded as a restrictive covenant A copy of the recorded document small be provided to DWQ within 30 days of platting and prior to sale of any lots c Built upon area calculations are provided for the overall project and all lots d Project conforms to low density requirements within the ORW AEC (if applicable) [15A NCAC 2H 1007(2)(b)] Form SWU-104 Rev 3 99 Page 2 of 2 Permit No 5W S d(do Q l 3 {to be provided by DWO State of North Carolina Department of Environment and Natural Resources Division of Water Quality STGRMWATER MANAGEMENT PERMIT APPLICATION FORM CURB OUTLET SYSTEM SUPPLEMENT FOR LOW DENSM DEVELOPMENT WITH CURB AND GUTTER This form may be photocopied for use as an original DWQ Stormwater Management Plan Review A complete stormwater management plan submittal includes a stormwater management permit application, a curb outlet system supplement, a low density supplement, design calculations, and plans and specifications showing all stormwater conveyances and curb outlet details I. PROJECT INFORMATION Project Name N 0tiL114 K ivrl- C L,u$ I JecrTto►-a Contact Person Mv-A N!A_ W\0( wn 4 PE_ Phone Number �51) 4 41 - 7-113 Curb outlets to (check one) 0 Swale 0 Vegetated Area II. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the North Carolina Administrative Code Section 15A NCAC 2H 1008 Initial in the space provided to indicate that the following design requirements have been met and supporting documentation is attached If the applicant has designated an agent on the Stormwater Management Permit Application Form, the agent may initial below If a requirement has not been met, attach justification Applicants Initials 5� a Curb outlets direct flow to a swale or vegetated area b Swales or vegetated areas receiving curb outlet flow are designed to carry, at a minimum, the peak flow from the 10-year storm MM c FIow velocity is non -erosive for peak flow from the 10-year storm event VMSN\, d Longitudinal slope of the swale or vegetated area does not exceed 5% KO a Side slopes of the swale or vegetated area are no steeper than 5 1 (horizontal to vertical) '11 5^_ f Length of swale or vegetated area is > 100 feet %S!k g The system takes into account the run-off at ultimate built -out potential from all surfaces draining to the system (delineate drainage area for each Swale) h Swales dre located in recorded drainage easements 'b t Grass type(s) for permanent vegetative cover specified on detail V\, ] Swale detail provided on plans Form SWU-105 Ver 3 99 Page l of 3 I � i LI 1 1 ' �JI I it s y , ' r '` 1 "` FI 1� 4 f I I r r 11 s t r I� ,� 7� 7 n I I ��� ' 1 �I I + y� , I J e � I i I 1 � i ' .. " 3 t I ' ! + t i� � t � ' If M. DESIGN INFORMATION Complete the following table If additional space is needed the information should be provided in the same format as Table 1 and attached to this form Rainfall intensity data can be found in Appendix 8 03 of the State of North Carolina Erosion and Sediment Control Planning and Design Manual Table 1 Swale Design information Swale No Drainage Area ac Impervious Area ac Grassed Area (ac) C Q (cfs s s Flow Depth ft 1 0q5 0.39 0,56 o 3, 5,0 1.6 d 6 2 0 °1S 053 © 64 3, 5v 2 `1 0.5Z 3 b. 35 0.18 0.11 0.61 5,0 0 1 4 -7 g 0,24 0.4 Ct 5 S O o y 5 O, Zo 0,1'A> 0,. 01 b. 5o 0.6 S, O O q 0.16 6 0, Zo O.t3 O,b"r O.Scz� Or6 so 0 0,36 7 O.Sc=. 0,Z°1 o.2t 0,91t L7 5,d 2,1 0,40 8 0,71 0.44 D,t$ b 51 214 5,0 1 0.50 9,0 1,bs I.01 o,5e o,So 5, 5,0 3, c� 01 b0 10 v o 05 C, o Li 0. 5_0 t.o 0 2 11 O. O.'31 0 ,13 O.6°1 2. S-o 12 0,17 o to v.o7 0,66 d 5,0 13 0. $0 o ,17 0.13 0.615 41,5 S AO 1.5 4 "d 14 0,3? 0.23 0.14 o 6 0 2, a 3 15 o,Za 0.14 0.114 0,5 0 2, 0 2 16 17 18 19 20 21 22 23 24 25 �w Zti1CLsua�4 Ov �R�Lu.a Pia" SwAUG j -7 A E> Form 5WU-105 Ver 3 99 Page 2 of 3 III. CURB OUTLET SYSTEM MAINTENANCE REQUIREMENTS 1 ' Mowing will be accomplished as needed according to the season Grass height will not exceed six inches at any time 2 Swales will be inspected monthly or after every runoff producing rainfall event for sediment build-up, erosion, and trash accumulation 3 Accumulated sediment and trash will be removed as necessary Swales will be reseeded or sodded following sediment removal 4 Eroded areas of the swales will be repaired and reseeded Swales will be revegetated as needed and in a timely manner based on the monthly inspections 5 Catch basins, curb cuts, velocity reduction devices, and piping will be inspected monthly or after every significant runoff producing rainfall event Trash and debris will be cleared away from grates, curb cuts, velocity reduction devices and piping 6 Swales will not be altered, piped, or filled in without approval from NCDENR Division of Water Quality I acknowledge and agree by my signature below that I am responsible for the performance of the six maintenance procedures listed above I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party Print Name and Title M ATT"Ekt j T1A PQiF_Ps0 - M$oJ NC—►ESZ Address pD Bois 14'7 NAft iAt @� NC-,Z?941 Phone Z5 — 4 — 2466 Date i i C ►'s s4 �� Signature Note The legally responsible party Agild not be a homeowners association unlesa more than 50% of the lots have been sold and a resident of the subdivision has been named the president 1, �:?QA!6ey .. _M , a Notary Public for the State of County of ,+at- , do h JTW personally appeared before me this 654 day of _Satti" htZ ^, AM (o , and acknowledge the due exec tion of the forgoing mfiltration basin maintenance requirements Witness my hand and official seal, PATRICIA M. GRAY NOTARY PUBLIC DME COUNTY, NC 0 %-M . A7 My commission expires �� /T — geL i Form SWU-105 Ver 3 99 Page 3 of 3 I i I ti I I, — E 1�1 I s S +S d I J d�