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HomeMy WebLinkAboutSW8051143_HISTORICAL FILE_20060105STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 d 51 I Lf3 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS Ep HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2oo�v o I o YYYYMM DD �GF WA%9Q Michael F. Easley, Governor �O G William G. Ross, Jr., Secretary r North Carolina Department of Environment and Natural Resources Y Alan W. Klimek, P.E. Director Division of Water Quality January 5, 2006 Mr. Ronald Saucier 169 Vision Drive Wilmington, NC 28405 Subject: Permit No. SW8 051143 SPEC - Leland Low Density Stormwater Project Brunswick County Dear Mr. Saucier: The,Wilmington Regional Office received a complete Stormwater Management Permit Application for SPEC - Leland on December 21, 2005. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 21-1.1000. We are forwarding Permit No. SW8 051143 dated January 5, 2006, for the construction of the subject project. This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions and limitations as specified therein, and does not supercede any other agency permit that may be required.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 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, 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. Sincer Edward Beck Regional Supervisor Surface Water Protection Section ENBlptb: S:1WQSISTORMWATERIPERMIT1051143.jan06 cc: Garry S. Pape, P.E., Withers & Ravenel, Inc. Delaney Aycock, Brunswick County Inspections Jeff Phillips, Brunswick County Engineering Paul T. Bartlett, P.E. Wilmington Regional Office Central Files North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 796.7215 Customer Servicel-877-623-6748 Wilmington Regional Office Wilmington, NC 28405.3845 FAX (910) 350.2004 Internet: h2o.enr.state.nc.us One No hCarolina An Equai Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper Aabtrall1J y . a State Stormwater Management Systems Permit Number SW8 051143 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT LOW 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 Ronald Saucier SPEC - Leland Brunswick County FOR THE construction, operation and maintenance of a low density development 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 rescinded and shall be subject to the following specific conditions and limitations: I. DESIGN STANDARDS 1. This permit covers the construction of 42,658 square feet of built -upon area. 2. The overall tract built -upon area percentage for the project must be maintained at 30%, as required by Section .1005 of the stormwater rules. 3. Approved plans and specifications for projects covered by this permit are incorporated by reference and are enforceable parts of the permit. 4. The only runoff conveyance systems allowed will be vegetated conveyances such as swales with minimum side slopes of 3:1 (H:V) as defined in the stormwater rules and approved by the Division. 5. No piping is allowed except that minimum amount necessary to direct runoff beneath an impervious surface such as a road or to provide access. 6. Unless specified elsewhere, permanent seeding requirements for the swales must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 7. Roof drains must terminate at least 30' from the Mean High Water line. Page 2 of 5 State Stormwater Management Systems Permit Number SW8 051143 II. SCHEDULE OF COMPLIANCE 1. Projects covered by this permit will maintain a minimum 30 foot wide vegetative buffer between all impervious areas and surface waters. 2. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon area. 3. 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. 4. Prior to the sale of this project, in whole or in part, the following deed restrictions must be recorded with the Office of the Register of Deeds: a. The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number SW8 051143, 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. Construction of additional built -upon area in excess of 42,658 square feet will require a permit modification. g. Construction of additional impervious areas such that low density requirements are no longer met must be submitted to DWQ and a permit modification must be issued prior to construction. An engineered system will be required to collect and treat the runoff from all built -upon area associated with the project, including that area permitted under the low density option. h. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with this development, except for average driveway crossings, is strictly prohibited by any persons. i. A minimum 30' wide vegetated buffer area shall be provided between surface waters and all impervious surfaces. 5. A copy of the recorded restrictions must be received in this Office within 30 days of the date of sale. Page 3 of 5 State Stormwater Management Systems Permit Number SW8 051143 6. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the permitted development, except for average driveway crossings, is strictly prohibited by any persons. 7. 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. 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, altering or piping any vegetative conveyance shown on the approved plan. 8. Swales 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. 9. During construction, erosion shall be kept to a minimum and any eroded areas of the swales or other vegetated conveyances will be repaired immediately. 10. 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. 11. Within 30 days of completion of the project, the permittee shall certify in writing that the project has been constructed in accordance with the approved plans. 12. The permittee shall submit all information requested by the Director or his representative within the time frame specified in the written information request. III. GENERAL CONDITIONS 1. 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. Page 4 of 5 State Stormwater Management Systems Permit Number SW8 051143 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. This permit is not transferable 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 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 permit conditions until the Director approves the transfer. 6. The permittee grants permission to DENR Staff to enter the property for the purpose of inspecting all components of the stormwater management facility. 7. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days. 8. 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) which have jurisdiction. Permit issued this the 5th day of January 2006 NORTH C OLINA ENVIRONMENTAL MANAGEMENT COMMISSION G U for Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW8 051143 Page 5 of 5 OFFICE USE ONLY Date Received Fee Paid Permit Numb r -o7aa O i2/zl/D� 1775 kee-W. ✓Av,z State of North Carolina Department of Environmental and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be pholocopied for use as an original I. GENERAL INFORMATION Applicants name (specify the name of the corporation, individual, etc. who owns the project): Ronald Saucier 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Ronald Saucier 3. Mailing Address for person listed in Item 2 above: 169 Vision Drive City: Wilmington State: NC Zip: 29405 Telephone Number: 910-350-1497 4, Project Name (subdivision, facility, or establishment name -- should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): SPEC - Leland 5. Location of Project (street address): l 11 & 113 Thomas Garst Lane City: Leland County: Brunswick 6. Directions to project (from nearest major intersection): From Wilmington, Exit 17S a, Village Road turn right, make„ first right onto Thomas Garst Lane and follow to end 7. Latitude: 34' 14' 01" N Longitude: 770 59' 35" W of'project. 8. Contact person who can answer questions about the project:: Name: Garry S. Pape, P.E. II. PERMIT INFORMATION: Telephone Number: 910-256-9277 Fonn SWU-101 Version 3.99 Pagel of4 '0 //0 �- - " - 46 �e � tv, /. -2- J W9 0,5-/ / 4 Y 1. Specify whether project is (check one): X New Renewal Modification 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its issue date (if known) 3. Specify the type of project (check one): X Low Density High Density Redevelop General Permit Other 4. Additional Project Requirements (check applicable blanks): CAMA Major X Sedimentation/Erosion Control 404/401 Permit X NPDCS Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 III. 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. Stormwater will be treated by a grassed swale. 2. Stormwater runoff from this project drains to the Cape Fear River Basin. 3. Total Project Area: 3.94 acres. 4. Project Built Upon Area: 24.85 %. 5. I -low many drainage areas does the project have? I 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach and additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area I Drainage Area 2 Receiving Stream Name Brunswick River Receiving Stream Class Sc Drainage Area 171,626 sf Existing Im ervious*Area - 0 - Pro osed Im ervious* Area 42,658 % Impervious* Area Total 24.85% Impervious* Surface Area Drainage Area I Draina Le Area 2 On -Site Buildings 12,100 sf On -Site Streets - 0 - On -Site Parkin Paved Areas 22,772 sf On -Site Sidewalks 5,306 sf Other On -Site 2,480 sf Off -Site - 0 - Total: 42,658 sf Total: *Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidexvalks, gravel areas, etc. Form S W U-101 Version 3.99 Page 2 of 4 How was the off -site impervious area listed above derived? 1V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all Subdivisions, out parcels, 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. 1. 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 consent of the Stale. 2. No store than 42,658 square feet ofany lot shall be covered by structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but not include wood decking or the water surface of swinuning pools. 3. Swales shall not be filled in, piped, or altered except as necessary 10 provide driveway crossings. Built -upon area in excess of the permitted amount requires a state stormwater management pernnil modification prior to construction. All permitted runoff from the oulparcels or future development shall be directed into the permitted stormwater control system. These comneclions to the slormlValer control system shall be performed it a manner that maintains the integrity and petfortnanee of the system cis pernaitled. 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. Forrn SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form SWU-101 Version 3.99 Page 3 of VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Regional Office. Please indicate that you have provided the following required information by initialing in the space provided next to each item. • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including: - Development/ Project name - Engineer and firm - Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm): Withers & Ravenel Inc. Mailing Address: 7040 Wri le Avenue, Suite 101 City Wilmington State: NC Phone: (910) 256-92.77 VIII. APPLICANT'S CERTIFICATION 280 " t/ Zip: ,24"l Fax: (910) 256-2584 I, (print or type name of person listed in General Inaforination, Item 2) Ronald Saucier 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 15A NCAC 21-I.1000. Signature: Date: Form SWU-101 Version 3.99 Page 4 of 5 WIT! -HERS & RAVENEL ENGINEERS I PLANNERS 1 SURVEYORS 7040 Wrightsville Avenue, Suite ioi WILMINGTON, NORTH CAROLINA, 28403 (910) 256-9277 FAX (910) 256-2584 TO: Paul Bartlett, P.E. NC Division of Water Quality 127 Cardinal Drive Ext. Wilmington, NC 28405 WE ARE SENDING YOU ❑ Shop Drawings ❑ Copy of Letter ❑ Attached ❑ Prints ❑ Change order LETTER OFT A MSM7TQL DATE 12 21/0 i06N0. 20 041.00 ATTENnON Paul Bartlett, P.E. PHONES 6- 01 RE: SPEC Daycare - Leland ❑ Under separate cover via ® Plans ❑ Samples ❑ Diskette ❑ the following items: ❑ Specifications COPIES DATE NO. DESCRIPTION 2 12/21/05 Revised Sheets 5 & 6 1 Revised Permit Application Page 2 THESE ARE TRANSMITTED as checked below: ® For approval ❑ Approved as submitted ❑ Resubmit copies for approval ❑ For your use ❑ Approved as noted ❑ Submit copies for distribution ❑ As requested ❑ Returned for -corrections ❑ Return corrected prints ❑ For review and comment ❑ ❑ FORBIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US REMARKS: For Approval COPY TO: File SIGNED: - Gan S. Pape. P.E. Ifenclosares are not as noted, kindly notify as at once. FILE MODE --------------- 765 MEMORY TX P. 1 COMMUNICATION RESULT REPORT ( DEC.20.2005 6:22PM ) TTI NCDENR WIRO OPTION ADDRESS (GROUP) r• LT PAGE 92562584 (70K P. 3/3 M r REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-2) BUSY E-3) NO ANSWER E-4) NO FACSIMILE CONNECTION State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Michael F. Easley, Governor William G. Ross, Jr., Secretary FAX COVER SHEET Elate; 12/20/05 No. of Pages: 3 (1 ncl. Cover) To: Garry Pape From: Paul Bartlett Company: Withers & Ravenel Water Quality Section - Stom�water FAX #: (910} 256-2584 FAX #; 910-350-2004 Phone #: 910-796-7301 DWO Stormwater Project Number: SW8 051143 Project Name: SPEC - Leland MESSAGE: Ga rry, A Request for Additional Information is attached for the subject project. The original will be mailed to Mr. Saucier, and a copy will be mailed to you. �7 c !6 r I State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Michael F. Easley, Governor FAX COVER SHEET Date: 12/20/05 To: Garry Pape Company: Withers & Ravenel FAX #: (910) 256-2584 William G. Ross, Jr., Secretary No. of Pages: 3 (Incl. Cover) From: Paul Bartlett Water Quality Section - Stormwater FAX #: 910-350-2004 Phone #: 910-796-7301 DWQ Stormwater Project Number: SW8 051143 Project Name: SPEC - Leland MESSAGE: Garry, A Request for Additional Information is attached for the subject project. The original will be mailed to Mr. Saucier, and a copy will be mailed to you. J ENBlptb: S:IWQSISTORMWATERIADDINF0120051051143.dec05 127 Cardinal Drive Extension, Wilmington, NC 28405-3845 Telephone (910) 796-7215 FAX (910) 350-2004 An Equal Opportunity Affirmative Action Employer �QF WATk- Michael F. Easley, Governor �O G William G. Ross, Jr., Secretary �? North Carolina Department of Environment and Natural Resources 1a Alan W. Klimek, P.E. Director Division of Water Quality December 20, 2005 Mr. Ronald Saucier 169 Vision Drive Wilmington, NC 28405 Subject: Request for Additional Information Stormwater Project No. SW8 051143 SPEC - Leland Brunswick County . Dear Mr. Saucier: The Wilmington Regional Office received a Stormwater Management Permit Application for SPEC - Leland on November 30, 2005. A preliminary review of that information has determined that the application is not complete. The following information is needed to ntinue the stormwater review: 1. Please clarify the impervious area entries for "Parking" (32,772 sf) and "Other on - site" (2,408 sf) in Section 111.6 of the application. Drawing 3.0 lists 22,772 sf and 41 2,480 sf, respectively. The total of 42,658 sf on the application appears correct. 2. Please label Swale #1 on Sheets #5 and #6. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to December 30, 2005, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 796-7215 Customer Service1-877-623-6748 Wilmington Regional Office Wilmington, NC 28405-3845 FAX (910) 350-2004 Internet: h2o.enr.state.nc.us No�thCarolina aurally An Equal Opportunity/Affirmative Action Employer— 50% Recycledl10% Post Consumer Paper Mr. Ronald Saucier December 20, 2005 Stormwater Application No. SW8 051143 Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7301. Since ely, ? Paul T. Bartlett, P.E. Environmental Engineer ENB/ptb: S:IWQSISTORMWATERIADDINFO120051051143.dec05 cc: Garry S. Pape, P.E., Withers & Ravenel Paul Bartlett TopoZone - The Web's Topographic Map Page 1 of 1 v V.J V.b V.y 1.Z 1.5 km 0 0.1 0.2 0.3 0.4 0.5 mi Map center is 340 14' 01"N, 770 59' 35"W (WGS84/NAD83) Wilmington quadrangle M=-8.931 Projection is UTM Zone 18 NAD83 Datum G=-1.685 http://www.topozone.com/print.asp?z=18&n=3792111.96860852&e=224310.37017153&... 12/20/2005 WITHERS & RAVENEL • ENGINEERS I PLANNERS I SURVEYORS 7040 Wrightsville Avenue, Suite ioi WILMINGTON, NORTH CAROLINA, 28403 (910) 256-9277 FAX (910) 256-2584 TO. Cameron Weaver NC Division of Water Quality 127 Cardinal Drive Ext. Wilmington, NC 284o5 WE ARE SENDING YOU ❑ Shop Drawings ❑ Copy of Letter LETTER OF TRA Sim DATE 11/30/05 JOB NO. 205041.00 ATTENTION Cameron Weaver PHONED 796-73o7 RE. SPEC Daycare - Leland I r I ❑ Attached ❑ Under separate covervia the following items: ❑ Prints ® Plans ❑ Samples ❑ Specifications ❑ Change order ❑ Diskette ❑ COPIES DATE NO. DESCRIPTION 2 11/29/05 Sets of plans for stormwater permit 2 11/22/05 Copies of stormwater narrative and ditch calculations 2 Stormwater Management Permit Apelication Form (one original, one co 2 Form SWLI-ioA Low Density Supplement (one original, one copy) 1 11/29/05 Application fee for $2000.00 for ex ress permitting (Low Density) I i I I THESE ARE TRANSMITTED as checked below: ® For approval ❑ Approved as submitted ❑ For your use ❑ Approved as noted ❑ As requested ❑ Returned for corrections ❑ For review and comment ❑ ❑ FOR BIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US REMARKS: COPY TO: File SIGNED: ❑ Resubmit ❑ Submit ❑ Return copies for approval copies for distribution corrected prints Ifenclosures are not as noted, kindly notify as at once SPEC DAYCARE - LELAN D STORMWATER & EROSION CONTROL CALCULATIONS November 29, 2005 N0� � 0 2445 �0\111 III//,, R0; '$Y: EA 9 0313 IN ell .' Withers & Ravenel, Inc. 7040 Wrightsville Avenue, Suite 101 Wilmington, North Carolina 28403 (910) 256-9277 STORM WATER NARRATIVE SPEC DAYCARE - LELAN D LELAN D, NC This + 3.94 acre site is located at the end of Thomas Garst Lane in the Town of Leland. This project consists of clearing, grading, and installation of infrastructure for a proposed 12,100 SF Daycare Facility. The proposed disturbed area for this project is + 3.5 acres and the total amount of impervious area compared with the total project boundary is 24.85%. The erosion control plan identifies the appropriate measures to be implemented for erosion control purposes during construction of the infrastructure associated with this development. The project is approximately 3.94 acres in size with an ultimate proposed disturbed area of 3.5 acres. The site is mostly open and drains from the west to the east at slopes of 3% SOI LS The soils onsite consist of Mandarin Fine Sand and Muckalee Loam series soils. The Mandarin series soils consist of somewhat poorly drained, flat sandy soils with a Hydrologic soils grouping of C. The Muckalee series soils consists of poorly drained soils on low flood plains with a Hydrologic soils grouping of D. STORM DRAINAGE The primary stormwater measure for this project is a grassed swale located in the southern portion of the site. The stormwater will be conveyed via overland sheet flow to the proposed swale. Roof drains will also splash block runoff to the rear of the site. Calculations and a cross section of the grassed swale are provided. EROSION CONTROL PLAN FOR SPEC DAYCARE - LELAND Area to be disturbed: +3.5 acres The project includes the construction of a 12,100 SF Daycare Facility. The storm water system will consist of sheet flow across the parking lot discharging to a grassed swale. EROSION CONTROL MEASURES: This project will primarily control erosion with the use of a temporary construction entrance, a temporary Sediment Trap and silt fence on the downslope of areas that will be disturbed. The contractor shall install, maintain and remove upon completion the silt fence as necessary to prevent any sediment from leaving the project limits. This will include any temporary stockpile areas if' necessary. Contractor shall clean and restore to pre - construction conditions any areas that may inadvertently be damaged due to the failure of the erosion control measures. SCHEDULING OF WORK: Clearing and grubbing shall be scheduled and performed in such a manner that fine grading operations and erosion control practices can follow immediately thereafter. Excavation and embankment operations will be conducted such that cuts and fills will be completed to final grades in a continuous operation. All construction areas not otherwise protected shall be planted with permanent vegetative cover in accordance with the specifications within 21 working days after completion of active construction. MINIMUM AREAS TO BE DISTURBED: Only those areas necessary for timely and proper completion of the project shall be stripped of native vegetation. The angle for graded sloped and fills shall be no greater than the angle which can be retained by vegetative cover or other adequate erosion control devices or structures. Slopes left exposed will be stabilized, within 21 calendar days of completion of any phase of grading, be planted or otherwise provided with ground cover, devices, or structures sufficient to restrain erosion. PLACEMENT OF SEDIMENT CONTROL DEVICES: All devices (sediment fences, construction entrances, etc.) for sediment control shall be constructed prior to beginning clearing and grubbing on the site. FINAL COVER: As soon as practicable after finished grades have been established, all operations in connection with establishing final ground cover shall be performed. Any inactive disturbed ground area to remain denuded more than 21 days shall be temporarily seeded in accordance with the temporary seeding schedule as noted on the plans. 0+00 12.10 0+15 12.00 0+20 11.30 0+36 12.00 0+40 12.50 Roughness Segment Definitions (0+00, 12.10) (0+40, 12.50) Normal Depth 0.35 ft Elevation Range 11.30 to 12.50 ft Flow Area 1.86 ftI Wetted Perimeter 10.56 ft Top Width 10.53 ft Normal Depth 0.35 ft Critical Depth 0.37 ft Critical Slope 2.31394 % Velocity 2.65 ft/s Velocity Head 0.11 ft Specific Energy 0.46 ft Froude Number 1.11 Flow Type Supercritical 0,030 Bentley Systems, Inc. Haestad Methods Solution Center FlowMaster [08.01.058.00] 11/2912005 6.52:33 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755.1666 Page 1 of 2 SPEC DAYCARE - LELAND - GRASSED SWALE Downstream Depth 0.00 ft Length 0.00 ft Number Of Steps 0 Upstream Depth 0.00 ft Profile Description Profile Headloss 0.00 ft Downstream Velocity Infinity ft!s Upstream Velocity Infinity ftls Normal Depth 0.35 ft Critical Depth 0.37 ft Channel Slope 0.02920 fUft Critical Slope 2.31394 Bentley Systems, Inc. Haestad Methods Solution Center FlowMaster 108.01.058.00] 1112912005 5:52:33 PM 27 Stemons Company Drive Suite 200 W Watertown, CT 06796 USA +1.203.756-1666 Page 2 of 2 Friction Method Solve For Channel Slope Normal Depth Discharge 12.70 12.60 12.50 12.40 12.30 12.20 12.10 a 12.00 � 11.90 w 11.60 11.70 11.60 11.50 11.40 11.30 11.20 11.10 0. Station SPEC DAYCARE - LELAND Manning Formula Normal Depth 0 2.92 0.35 ft 4.93 ft'/s Bentley Systems, Inc. Haestad Methods Solutlon Center FlowMaster (08.01.058.00] 11/29/2005 5:52:69 PM 27 Slemons Company Drive Sulte 200 W Watertown, CT 06795 USA +1.203-755-1666 Page 1 of 1 , NCDENR North Carolina Department of Environment and Natural Resources 127 Cardinal Drive, Wilmington NC 28405 (910) 796-7307 FAX (910) 350-2004 Request for Express Permit Review FILL-IN all information below and CHECK required Permit(s). FAX or email to Cameron. Wea ver( ncmail. net along with a narrative and vicinity map of the project location. Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made. APPLICANT Name Ron Saucier I(CeMA_4 ? Company nla V Address_165 Vision rive_CitylState_WilmingtonlNC_Zip_28403_ County _ New Hanover County Phone—(910) 350-1497 Fax—(910) 794.1096 Email PROJECT Name —SPEC -Day Care Leland PROJECT SYSTEM(S) TRIBUTARY TO —Brunswick River_(STREAM NAME) Cape Fear RIVER BASIN ENGINEERICONSULTANT Mark Hargrove Company _Withers & Ravanel Address 7040 Wrightsville Avenue, Suite 101_City/State_WilmingtonlNC_Zip_28403_County_New Hanover County Phone_ (910) 256-9277 Fax (910) 256-2584TEmail_MHargrovea@withersravenel.com State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required ❑ Yes ® No --------------------------------------------------------------------------------------I-----------------------------------------...-------------------------------------- ❑ STREAM ORIGIN Determination; # of stream calls; Stream Name --------------------------------------------------------- ------------------------------------------------------------------------------------------------------------ ®sroRMwarER ❑ Lowy nsit ❑High Density -Detention Pond ❑High Density -Other Wetlands MUST be addressed belo ® w Density -Curb & Ginter ❑ High Density -Infiltration ❑ Off Site _ ❑COASTAL _ _ ❑ ExcavatiFill - ❑ Bridges & Culverts _ ❑ Structures Information "-MANAGEMENT-'-' -"'❑ Upland Development`—"'❑ Marina Development ❑-Urban'Waterfront' --- ------------------------------------------------------------------------------------------------------------------------------------------------------------7------------ ® LAND QUALITY ®Erosion and Setli rita ' n Control Plan with 3.4 acres to be disturbed. ------------------------------------------------------------------------- ------------------------------------------------------------ ------------------------------ WETLANDS (401) Wetlands on Prope y ® Ye ❑ No Isolated Wetlands on Property ❑ yes ❑ No Check all that apply Wetlands Will B Impacte ❑ Yes ® No Welland Impacts: Acre(s) Wetlands Delineati n has en completed ® Yes ❑ No ❑ Buffers Impacted: Acre(s) USACOE Approval Ineation completed ❑ Yes ® No 404 Application in process w/USACOE ®Yes ❑No 1 Permit received from USACE ❑Yes [:]No 401 Application required ❑Yes ❑ No If Yes, ❑ Regular ❑ Express Additional fees, not to exceed 50% of the original Express Review permit application fee, may be charged for subsequent reviews due to the insufficiency of the permit applications. SUBMITTAL DATES SW For DENR use only Fee Split for multiple permits: CAMA $ LQS $ 401 $ Total Fee Amount $ � E m W J C SITE � pp p NE 1Hoops G �Z o.. z I VICINITY MAP . I (N. T. S. -- - --N _ - - -- - ---- - __ - - - ___--�- A THE t3.94 ACRE SITE IS LOCATED IN THE TOWN' OF LELAND AT THE INTERSECTION OF THOMAS GARST LANE AND VILLAGE ROAD. THE PROJECT PROPOSES A DAYCARE CENTER THAT WILL UTILIZE CUR_ B__WLEZSS AND AN OPEN SWALE DR AAI 4GE SYS_T.EM TO DIRECT STORM WATER FLOW INTO THE-EXISTING- HYDIRGIC DRAINAGE SYSTEM. . THE PRIMARY STORMWATER MEASURES INCLUDE STORM GRATE INLETS AND ROOF DRAINS THAT CONVEY THE STORMWATER TO A' OPEN GRASS SWALE SYSTEM. SPEC -LE LAN D REQUEST FOR PRE -APPLICATION MEETING FOR EXPRESS PERMIT REVIEW OCTOBER 20, 2005