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HomeMy WebLinkAboutSW7060108_HISTORICAL FILE_20090304STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�(%�O/%/D� DOC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE DOC DATE �J�/9364 YYYYMMDD MCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H, Sullins Governor Director March 4, 2009 Mr. Thaddeus E. Tankard, III, Pastor Christian Voice Ministries, Inc. 6897 Slatestone Road Washington, NC 27889 Dee Freeman Secretary Subject: Stormwater Permit No. SW7060108 Modification Harvest Church High Density Project Beaufort County Dear Pastor Tankard: The Washington Regional Office received a complete Stormwater Management Permit Application for the second modification of Harvest Church on February 17, 2009. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7060108MOD dated March 4, 2009, for the construction of the subject project. The permit issued for this project on April 23, 2008 is hereby rescinded and is replaced by this permit. This permit shall be effective from the date of issuance until March 21, 2016, 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 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mai! 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 Scott Vinson, or me at (252) 946-6481. incer ly, AWIodg'Z3�6 -r_� Regional Supervisor Surface Water Protection Section AH/sv: S:IWQSISTORMWATERIPERMIT1SW7060108M cc: HC Harris, Jr. Egineering & Surveying, PA B ufort County Building Inspections lashington Regional Office Central Files North Carolina Division of Water Quality 943 Washington Square Mall Washington, NC 27889 An F.niial Onnorinnily IAtfirmafiveArfion Emnlover Internet: www.ncwaterquality.org Phone: 252-946-6481 1 FAX: 252-946-9215 FAX: 252-946-9215 NorthCaroiina State Stormwater Management Systems Permit No. SW7060108MOD 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 Christian Voice Ministries, Inc. Harvest Church Beaufort County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until March 21, 2016, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The wet detention basin has been designed to handle the runoff from 98,650 square feet of impervious area within the 3.07 acre drainage area of the pond. 3. The tract will be limited to 135,922 square feet of total built -upon area over the entire13.35 acre site (24% impervious), per the application and 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 the wet detention basin must be directed into the permitted stormwater control system. Page 2 of 7 State Stormwater Management Systems Permit No. SV 7060108MOD 6. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, acres: 3.07 b. Total Impervious Surfaces, ftz: 98,650 C. Design Storm, inches: 1.0 d. Pond Depth, feet: 3 e. TSS removal efficiency: 85% f. Permanent Pool Elevation, FMSL: 7.00 g. Temporary Storage Elevation, FMSL: 7.80 h, Required Surface Area, ftz: 8,425 sf i. Provided Surface Area, ftz: 8,425 sf j. Required Storage Volume, ft3: 8,135 cf k. Provided Storage Volume, ft3: 8,863 cf I. Permanent Pool Volume, ft3: 16,856 cf M. Permitted Forebay Volume, ft3: 4,602 cf n. Controlling Orifice: 1.0" 0 pipe o. Receiving Stream/River Basin: Cherrys Run 1 Tar - Pamlico p. Stream Index Number: 28 — 103 — 17 q. Classification of Water Body: "C, Sw, NSW' II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. Page 3of7 State Stormwater Management Systems Permit No. SV 7060108MOD 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. Decorative spray fountains will not be allowed in the stormwater treatment system. 6. 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. 7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification, A modification may be required for those deviations. 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. 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. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 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 7 State Stormwater Management Systems Permit No. SV 7060108MOD III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. . 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. 10. This permit shall be effective from the date of issuance until March 21, 2016. 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 4th day of March, 2009. NQRTH_CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION 46' ---� for Voieen H. Swims, Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. SW7060108 Modification Page 5 of 7 State Stormwater Management Systems Permit No. SV 7060108MOD Harvest Church Stormwater Permit No. SV 7060108 Modification Beaufort 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 State Stormwater Management Systems Permit No. SV 7060108MOD Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. .3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/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. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. CC'. NCDENR-DWQ Regional Office Beaufort County Building Inspections Page 7 of 7 S ,. ,. _. ,.,... DWQ USE ONLY - r Date Received Fee Paid Permit Number�j v�. i� �/ �} 07 O r?a 11 ,01 State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORIVI �,'�? ►r This form may be photocopied for use as an original FEB 17 2009 I. GENERAL INFORMATION ir 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): �! Chrl5tlan Voice M1nl5trle5. Inc. 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Thaddeus E. Tankard. III. Pastor 3. Mailing Address for person listed in item 2 above: G897 50te5t0ne road City: Wa5hincJton State: NC Zip: 27889 Phone: (252 ) 927-3410 Fax: { ) Email: 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Harvest Church 5. Location of Project (street address): I nth City:Wa5hrnclton County:Beaufort b. Directions to project (from nearest major intersection): From the intersection of 1 5t" street and U5 2G4, proceed east on 15t" 5t. for 0. 1 5mi. Protect 15 on the North 51de of 1 5t" Street. 7. Latitude:N35034100" Longitude:W77°04' 1 5" of project 8. Contact person who can answer questions about the project: Name:Mlchael D. Toi5on Pff, PL5 Telephone Number: (252 ) 32 1 -5GO7 Entail:mdtol5on Phcharri5. net H. PERMIT INFORMATION: 1. Specify whether project is (check one): ❑New ❑Renewal ®Modification Form SWU-101 Version 8.07 Page I of 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): ❑Low Density ®High Density ❑Redevelop ❑General Permit []Universal SMP ❑Other 4. Additional Project Requirements (check applicable blanks): ❑LAMA Major ®Sedimentation/Erosion Control 0404/401 Permit ®NI'DES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. Ill. PROJECT INFORMATION 1. 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 sheet flow from parking lot, be collected and swales and conveyed to Stormwater detention pond for treatment and release over a 2 to 5 day period 2. Stormwater runoff from this project drains to the Tar -Pamlico River basin. 3. Total Site Area: 13.35 acres 4. Total Wetlands Area: 0.00 acres 5. 100' Wide Strip of Wetland Area: 0,00 acres (riot applicable if rio wetlands exist on site) 6. Total Project Area**: 13.35 acres 7. Project Built Upon Arew24.0 % 8. How many drainage areas does the project have?2 9. 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 1 ` Drainage Area 2 Receiving Stream Name North UT of Cherrys Run 5outh UT of Cherrys Run Stream Class & Index No. C, NSW, 5W C, NSW, 5W Drainage Area (so 378,552 202,853 Existing Impervious* Area (so 0 0 Proposed Impervious*Area (so 37,272 98,G50 Impervious* Area (total) 9.55 48.G ImperviousSurface Area, ,, t -Drainage Area 7 ,'Drainage Area'2' On -site Buildings (sf) 12,530 13,72 1 On -site Streets (so 0 0 On -site Parking (so 0 60, 1 2G On -site Sidewalks (so 3,215 4,803 Other on -site (so 2 1 ,OG7 0 Off -site (so 0 0 Total (so) 37,272 98,G50 * Impervious area is defined as the biult upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. **Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built 1117ox area percentage calculation. form SWU-101 Version 8.07 Page 2 of 10. How was the off -site impervious area listed above derived? CAD Drawin IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the following 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. Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required in the above form, 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 SW401-Low Density Low Density Supplement Form SW401-Curb Outlet System Curb Outlet System Supplement Form SW401-Off-Site System Off -Site System Supplement Form SW401-Wet Detention Basin Wet Detention Basin Supplement Form SW401-Infiltration Basin Infiltration Basin Supplement Form SW401-Infiltration Trench Underground Infiltration Trench Supplement Form SW401-Bioretention Cell Bioretention Cell Supplement Form SW401-Level Spreader Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Form SW401-Wetland Constructed Wetland Supplement Form SW401-Grassed Swale Grassed Swale Supplement Form SW401-Sand filter Sand Filter Supplement Form S W U- l 01 Version 8.07 Page 3 of 4 `1I. 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 Office. (Appropriate office may be found by locating project on the interactive online map at http-.//j12o.enr.state.nc.us/su/msi ma s.htm) 1. PIease 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 • Original and one copy of the Deed Restrictions & Protective Covenants Form • Original of the applicable Supplement Form(s) acid O&M agreement(s) for each BMP • Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR • Calculations & detailed narrative description of stormwater treatment/management • Copy of any applicable soil report • Three copies of plans and specifications (sealed, signed & dated), 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) VIL AGENT AUTHORIZATION 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): Michael D. Tol5on, PT, Ph5 Mailing Address: 2 1 G N. Main Street City: Mnterville State: NC Zip: 28590 Phone: (252 ) 32 1 -5C07 Email: md_to15on@,hcharn5.net VIII. APPLICANT'S CERTIFICATION Fax: 252 32 1 -G208 1, (print or type name of person listed in General lnfortnation, ifent 2) '/. 10 L e.4 / 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 covenanttss,4i1 be recorded, and that the proposed project complies with the requirements of 15A NCAC 21-1 .1000. �r� Signa Date: 2 ' U Form S W U-101 Version 8.07 Page 4 of 4 r' fM w6md" Harvest Church 5tormwater Square Peet PervioUS I ImF2CrVIOU5 DA Managed I Wooded/Buffer I Transportation 6urldng 5dewa1k Total Impervious TOTAL Drainac3e, Area f (flow5 to northern UT of Cherry-5 Run) A (Runoff north) 297,2G 1 L 29,9741 2 I ,OG7 12,990 3,215 37,272 3G4,507 Drainae3e Area 2 (Flaws to southern UT of Cherryl5 Burr) 13 (Direct Runoff South) GB,SG I - - - - - GS,SG I C (Parkin Lots and Buildin ) 17,795 - 50, 1 2G 1 3,72 1 4,803 98,G50 I I G,445 D (BMP) 17,547 - - - - ;���- 17,547 5u6total Drainage Area 2 104,203 - (50,1 13, 72 I 4, 60,3 90, 650 202, 653 TOTAL 401 ,4G4 29,974 101,193 2G,7 1 1 8,0181 135.922 5G7,3GO Percent Impervious = 24.0% AGRE5 Per OU5 1 I m ervrous DA Managed I WoodedOuffer I Transportation Doldmg 51dewalk Totallmperwou5 TOTAL Drainage Area I (flows to northern UT of Cherry5 Run) A (Runoff North) G.82 I O.G9 1 0.48 0.30 0.07 0.8G 5.37 Drainat3e Area 2 (Flows to southern UT of Cherry'5 Run) 13 (Direct Runoff South) 1.55 0.00 0.00 0.00 0.00 0.00 1.58 C (Parkin Lots and Burldin) 0.41 0.00 1.54 0.31 0. 1 1 2.2G 2.G7 D (5MP) 0.40 0.00 0.00 0.00 0.00 0.00 0.40 5uh,total Drainage Area 2 2,39 0.00 1.64 0.31 O. I / 2.26 4.65 TOTAL 9.22 O.G9 2.32 O.G 1 0. 18 3.12 13.02 Percent Impervious = 23.9% /-Pond Treatment Catchment Only ACR)=S Pervious Impervious DA Managed WoodedlDuffer Transportation Building Sidewalk Totallmpervious TOTAL C (Parkmc3 Lots and BUlldm) 0.41 0.00 1.54 0.31 0. 1 ) 2.2G 2.G7 D (BMP) 0.40 0.00 0.00 0.00 0.00 0.00 0.40 TOTAL 0.8I 0.00 1.841 0.31 0, 1 1 2.2G -' 3.07 Percent Impervious = 73.G% 9. 3";?-Ic y �J� Firelane Soils AaA - Altavista Fine sandy loam Permeability 0"-loll 10"-42" 2.0-6.0 0.6-2.0 SHWT 1.5' - 2.5' StA - State Sandy Loam Permeability 0"-18" 18"-44" 0.6-6.0 0.6-2.0 SHWT 4.0'-6.0' TaB - Tarboro Sand Permeability 0"-8" 8"-72" 6.0-20 <20 SHWT >6.0' - A I I ,596 5F IN Tab SOIL `f it 18,107 5F 1N AaA 501E 5.517 5F IN 5tA 5011L 35,1 12 TOTAL FIRELANE AREA X GO% = 21 ,OG7 IMPERV10l)5 f ' f i Re: Hamest Church - SW permit modification Subjmt: Re: Harvest Church - SW permit modification From: Scott Vinson <Scott.Vinson a ncmail.nety Date: Thu, 12 Feb 2009 16:43:43 -0500 To. "Michael 1). Tolson" <nidtolson a hchali-is.nct> Mike, I made a slot opening & finished the review of this package this afternoon. It looks good, with one thing missing. The Letter of Transmittal states that the package comes with 1 copy of the "Stormwater Permit Application Modification" form. It seems to have been accidentally left out of the package. Could you please check to see if y'all still have it and forward to me as soon as you can? Two copies of the revised nar.rati.ve was included which did contain the new Drainage area tables in both "Acres" and "Square Feet", but no new standard 4 page application form. Call or write if you have any questions, Scott Michael D. Tolson wrote: I Thanks Scott, I appreciate your attention to this project. Michael D. Tolson, PE, PLS H.C. Harris, Jr. Engineering & Surveying, P.A. 216 hla in Street Wintervil.le, North Carolina 28590 (252)-321-5607 (o) (252)-327-5,155 (mj (252)-321-6208 (f) -----Original. Message ----- From: Scott Vinson[maiito:Scott.Vinson@ncmail.net] Sent: Monday, February 09, 2009 11:38 AM To: Michael D. Tolson Subject: Re: Harvest Church - SW permit modification Mike, I have not yet had a chance to do the fuii review yet_ I am scheduled to get to it in two weeks. If a slot comes available between now and then I'll slip it in and get back to you as soon as I finish. Scott Michael D. Tolson wrote: Scott, I just wanted to check with you to make sure you had received all the materials that you needed for the modif.icati.on of the existing stormwater. permit we had discussed for Harvest Church .in Washington. My client is nearing completion of the site work and would like to get a general idea of when he can schedule the additional fire lane improvements that this modification to the permit would allow. Please feel- free to call or email me tc discuss this project. Michael D. Tolson, PE, PLS H.C_ Harris, Jr. Engineering & Surveying, P.A. 216 Main Street Winterville, North Carolina 28590 (252)-321-5607 W (252)-327-5455 (m) (252)-321-6208 (f) "E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties." of 1 2/13/2009 11:25 AM t- ACRES Pervious Impervious DA Managed I Wooded/Buffer Transportation 13urldrng Sidewalk rotallmperwou5 TOTAL Drainage Area I (flows to northern UT of Cherry5 Run) A (Runoff North) G.82 I 0.G9 I 0.3G 0.32 0.07 0.7G 8.27 Drainacje Area 2 (Plows to southern UT of Cherry5 Run) B (Direct Runoff South) 1.55 0.00 0.00 0.00 0.00 0.00 1.545 C (Parkin Lots and Burldm ) 0.41 0.00 f .84 0.31 0. 1 1 2.2G 2.G7 D (13MP) 0.40 0.00 0.00 0.00 0.00 0.00 0.40 5u6totsl Drainage Area 2 2.33 0.00 1.64 0.31 0. l I 2.26 4.65 TOTAL 9.22 O.G9 2.20 0.G3 0.15 3.02 12.92 Percent Imperviou5 = 23.3% Pond Treatment Catchment Only ACRES Per%nou5 Im ervious DA Managed Wooded/Buffer Transportation Building 51dewalk Total Impervrou5 TOTAL C (Parkin Lots and Builain) 0.41 0.00 1.84 0.31 0. 1 1 2.26 2.G7 D (13MP) 0.40 0.00 0.00 0.00 0.00 0.00 0.40 TOTAL 1 0.811 0.001 1.541 0.311 0. 1 1 2.2GI 3.07 Percent Impervious = 73.G% ro9 DWQ -Puoj # �_ �• 4 _ i f _ l .. � � J _ _ , . � l Harvest Church 5tormwater Square Feet Per OU5 lmperviou5 DA Managed WoodedIDLIffer Transportation 6uildrng 5dewalk Totallmpervious TOTAL Drainac3e. Area I (flows to northern UT of Cherrys Run) A (Runoff North) 297,2G I 1 29,9741 15,750 13,910 3,215 32,905 3GO, 140 Drainage Area Z (F10w5 to Southern UT of Cherry'5 Run) 13 (Direct Runoff 5outh) G8,6G I - - - - - G8,8G I C (Parkiricj Lots and Budcfin) 17,795 _ 50,1 2G 1 3,72 1 4,803 98,G50 I I G,445 D (BMP) 17,547 - -1 - - - 17,547 5ub,total Drainage Area 2 104,203 - 60,126 13,721 4,003 96,650 202,653 TOTAL 401 ,4G4 29,9741 95,90G I 27,G3 1 8,018 131,555 5G2,993 Percent Impervious = 23.4% rv,svv -%Slk,jj� lot 1 2 vW' y$�b# A0 (91L-vq �t -q-'% f t ` ' TaB AaA to i IlY' tci� • .•rl ti I :. � �,�i �� Aa lli ,nr; :1h1A"" ~�'9 Ta ' it .. �"4p� r•ly Y^+Fx:,,.. � StA W. t ' ' �•� '•�li�:�'a:, • riffs:;.'.• - J? r*.� Jq :y-ii:{k:j.5 : '•:1/,i'tlS�t�4; B. �c W, �� f x.2f;.• Le r iA(.f Syt'�,_• ;:�i;..:a:':•. r •'d.t4� dig Js'�- •,''l -cl:. �,y -+�psE;� - -, i.,,,.,,.;:�'y;.;•,:.. `•}:;]!; � I :s 1. :'�., C�1•. 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P s (} I (}� 4! ,1if`f'`i t l ': ul��i'4�`•� �t�2li_+ l • list �: f ��•:��5 ri ', •!, � i": '''1 °44,�.�g53 ., , { ..%�,!{:is?t }fir,, �� t;�:ti:' � .x { ,� j-b ,�� .!: .�'•�; 1r:': y ' � : i;S: • sl,! . i'J�I r'i',r. `( f : f •`•I 1 i a r ,;� !tl f1• .r1:i;:�• :'I+,..�. �j //+ `1I>il!< r! 1�u I ::Z;d! �7.'�i':; ',S .JT � `{�f '. .�, (�,1,� `(�l/1� ''S f+ f �i'.. ,J ,• '1: � 1,,}`L., i (. 1' , - � '� I `/ t „l.;f �f:i i �tii l "� •A! 51� �. ��.e jf': iV N4lR�:•::i� �{�'•.1 I t ' 7 i, f ! ::: �+l -' „J' ` .\l. ¢:!. etf,-.l1`iG:�@!ih,).:C.';4',, kgw,•SNti I � 2„ S. � k.slRs �1\:.. l.i�! ���ti.:• • -f�Yf i';�•.'' •n1i��. (� {� �j I DATE: EEBRUARY25, 2008 501LS MAP H.C. HAR `I`-', "K• DRAWN BY: J5F ENGINEERING SURVEYING, P.A. SURVEYED BY: N/A HARVEST CHURCH 2 1 G MAIN 5TREET CHECKED BY: MDT WINTERVILLE, NC 28590 SCALE: 1" 1000, (252) 32 1 -5607 OR 321-1 704 PROJECT NUMBER: 05053 TOWN Of= WA5h I NGTON FAX (252) 321-5208 EMAIL: hcharrls@hcharris.net SHEET: I of I 5EAUFORT COUNTY, NOUN CAROLINA xx H.C. Harn5, Jr. Engmeermg t 5urveying, P.A. 21 6 Main Street Wintervdfe, NC 28590 252.32 1 .5G07 To: NCDENR - DWG Washington Regional Office 943 Washington Square Mall Washington, NC 27589 We are sending you: M Attached ❑ DrawincJ5 ❑ PIan5 Letter ❑ Other Date: 1 2/ 18/2005 Job No Attention: Mr. Scott Vin5on Re: harvest Church 5tormwater Permit Revi5ion Under separate cover via Prints ❑ 5ample5 05083 the following: l5pecification5 Date Number 2 Ilarve5t Church Construction Plans RE, uuwm 2 5tormwater Package (Narrative, Calculations modified and original) I 5tormwater Permit Modification Narrative JAN - 7 2009 1 5tormwater Permit Application Modification ����ff fi�nn'' ``�� DWQ— ARO Transmitted a5 checked below: Xx For approval Approved a5 noted Resubmit copies for approval 0 For your use Approved a5 5ubmittedSubmit copies for distribution As requested El Returned for corrections Return corrected pnnt5 For review Other Remarks Mr. Vinson: A5 we have discussed, Please find the enclosed permit modification. i have attached a modification narrative to hopefOy help you understand all the changes clearly and concisely. Please feel free to call should you have any questl0115. Copy to: file Sigred: J.ficott Farmer, El If enclo5uree are not 15 noted, kindly notify us at once. F:\2005 PROJECTS105063-C.A. Lewis - Narvest ChurCh\1)ocuwent5rmit-1 2-1 6-05 Vmson Harvest Church 4/1012008 Calculations for level spreaders Q = 2.26 cfs outflow from 10 year 24 hr storm L = 226 ft length of level spreader on plans Q = CLH"1.5 Weir equation C = 3 constant H = (Q13.OL)^0.66 H = 0.02 ft V = Q1A A = LH = 5.24 sf V = 0.43 fps OK less than 5 fps (natural vegetation clayey soils) Level Spreader Calculations Page 1 o�oF W A r�9Q0 .! r- 5 Christian Voice Ministries, Inc Attn: Thaddeus E. Tankard, III 6897 Slatestone Road Washington, NC 27889 Dear Mr. Tankard, III: kb --KO Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality April 23, 2008 .Tzq. 31+'[0? Mo 69, Subject: Stormwater Review SW7060108 MODIFICATION Harvest Church High Density Stormwater Permit Beaufort County The Washington Regional Office received a complete Stormwater Management Permit Application for Harvest Church on February 29, 2008, Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7060108 dated April 23, 2008 for the construction of the subject project. This permit shall be effective from the date of issuance until April 23,2018 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 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Ernest Odei- Larbi, or me at (252) 946-6481. Sincer ly, \ 4At` Hodge Regional Supervisor Surface Water Protection Section AHleol: J:IWPDATAIWQSI State SW-EOLIPermits — Hybrid -HD cc: H.C. Harris Jr., RE, PLS (216N. Main Street, Winterville, NC 28590) Lshington ufort County Planninglinspection Regional Office Central File North Carolina Division of Water Quality Internet: k,%vcv.ncwateroualiry.O One 943 Washington Square Mall Phone (252) 946-6481 N&Marohna Washington, NC 27889 Fax (252) 946.9215 Naturally An Equal OpportunitylAffirmative Action Employer— 50% Recycledll0% Post Consumer Paper State Stormwater Management Systems Permit No. SW7060108MOD. 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 Harvest Church Beaufort County FOR THE construction, operation and maintenance of a wet detention pond and permeable pavement in compliance with the provisions. of 15A NCAC 2H .1000 (hereafter referred to as the. "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit, This permit shall be effective from the date of issuance until April 23, 2018 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 114,865 square feet of impervious area. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. 2 State Stormwater Management Systems Permit No. SW7060108MOD. 6. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: Total Impervious Surfaces, ft: 114,855 (i.e. drainage area # 1 & 2) Design Storm, inches: 1 � 1 i G Receiving Stream: Pasq)tank river -� f 1 ] Classification of Water Body: C, NSW, SW Total Site Area: 13.35 ac Drainage area: 8.69 ac (drainage area # 1) 4.65 ac (drainage area # 2) TSS removal efficiency: 85% Wet Pond Ave. Depth: 3,0 ft Required Storage Volume: 8,135 cf Provided Storage Volume: 8,863 cf Required Surface Area: 8,425 sf Provided Surface Area: 8,425 sf Permanent Pool Volume: 16,856 cf Permitted Forebay Volume: 4,602 cf Controlling Orifice: 1 inch Permanent Pool Elevation, FMSL Temporary Storage Elevation 7.80 ft. MSL 3 State Stormwater Management Systems Permit No. SW7060108MOD. II. SCHEDULE OF COMPLIANCE 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 outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. Decorative spray fountains will not be allowed in the stormwater treatment system. 6. 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. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. 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. State Stormwater Management Systems Permit No. SW7060108MOD. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 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. Ill. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. State Stormwater Management Systems Permit No. SW7060108MOD. 10. This permit shall be effective from the date of issuance until. 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 23rd day of April 2008. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION I L � _ forColeen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7060108 State Stormwater Management Systems Permit No. SW7060108MOD. Harvest Church Beaufort 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; SEAL Signature Registration Number Date State Stormwater Management Systems Permit No. SW7060108MOD. Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/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. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Beaufort County Building Inspections 8 I DWQ USE ONLY Date Received Fee Paid Permit Number �56 1),01 ;1.608 50-5 SW 76 6010 g State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Chn5tian Voice Mirn5trie5 Inc. 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Thaddeus E. Tankard, III, Pastor 3. Mailing Address for person listed in item 2 above G897 51ate5tone Road City: Wa5hsngton State: NC Zip: 27689 Phone: (252 ) 927-3410 Fax: ( ) Email: 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): tlarve5t Church 5. Location of Project (street address): 1 5" Street City:Wa5hin ton County:15eaufort S. Directions to project (from nearest major intersection): From the intersection of 15" street and U5 264proceed east on 1 5" St. for 0. 1 5mi. Pro ect +5 on the North 5de of 1 5" Street. 7. Latitude:N35°34'00" Longitude:W77°04' 15" of project 8. Contact person who can answer questions about the project: Name:N.C, Harn5 Jr., PE, PL5 _ Telephone Number: (252 } 32 1 -5507 Email:hcharn5Phcharn5, net If. PERMIT INFORMATION: 1. Specify whether project is (check one): ❑ New ❑Renewal ®Modification Form SWU-l01 Version 8.07 Pagel 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 and its issue date (if known) 3. Specify the type of project (check one): []Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SNIP ❑Other 4. Additional Project Requirements (check applicable blanks): ❑LAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ®NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION 1. 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. 5tormwater will Sheet flow from parking lot, be collected and 5wale5 and conveyed to 5t0rmwater detention pond for treatment and release over a 2 to 5 day period 2. Stormwater runoff from this project drains to the Tar -Pamlico River basin. 3. Total Site Area: 13.35 acres 4. Total Wetlands Area: 0.00 acres 5. 100' Wide Strip of Wetland Area: 0,00 acres (not applicable if no wetlands exist on site) 6. Total Project Area**:13.35 acres 7. Project Built Upon Area:24.0 % 8. How many drainage areas does the project have?2 9. 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 1 Drainage Area 2 Receiving Stream Name North UT of Cherry5 Run South UT of CherryS Run Stream Class & Index No. C, NSW, SW C, NSW, SW Drainage Area (sf) 376,552 202,553 Existin lm rvious* Area (so 0 0 Proposed Im ervious*Area (so 37,272 98,G50 90 Impervious* Area (total) 9.55 46. G Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings (sf) 12,990 13,721 On -site Streets (so 0 0 On -site Parking (so 0 80, 1 2G On -site Sidewalks (so 3,215 4,503 Other on -site (so 2 1 ,OG7 0 Off -site (so 0 0 Total {sf): 37,272 , g�Ac 98,G50 ,Z.A6 * Impervious area is defined as t1w built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 8.07 Page 2 of +.' J .. • ' '• � .? . T ` 7. How was the off -site impervious area listed above derived? C.'_D�D D r-KA. %,/ i jJ Ce 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 tot number, size and the allowable built -upon area for each lot must be provided as an attachment. 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 (fie consent of the State. 2. No more than square feet of any lot shall be covered by structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick, 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 runoff from outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains 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 he 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-101 Version 3.99 Page 3 of 4 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. Initials • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP — T� • 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) VII. AGENT AUTHORIZATION 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): N.0 . 1,QRR 1 5i tz._1 P5-, PLS Mailing Address:__��(,Qf`'� r_►�1 5"r City; J.�f_�_Tx��LLLE State: A/C Zip: ,ZB � Prone: L9 -51.Z ) 3Z/ - S41 07 VIII. APPLICANT'S CERTIFICATION Fax: ( Z 5 ?_ ) 1, (print or type name ofperson listed in General Information, item 2) 1 H4 DD F= E . 1:64154sD_ M 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 2H .1000. Signature: Date: 1 2 —LD -- norm SWU-101 Version 3.99 Page 4 of 4 Pastor Thaddeus E. Tankard, III Harvest Church 6897 Siatestone Road Washington, NC 27889 Dear Pastor Tankard: Michael F. Easley, Governor W-90 William G. Ross Jr,, Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality March 21, 2006 rc, ,f Subject: Stormwater Permit No. SW7060108 Harvest Church High Density Project Beaufort County The Washington Regional Office received a complete Stormwater Management Permit Application for Grantham Place on March 2, 2006. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title- 15A NCAC 2H.1000. We are forwarding Permit,No. SW7060108 dated March'21, 2006, for the construction of the subject project. This permit shall be effective from the date of issuance until March 21, 2016, 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 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 Amy Franklin, Or myself at (252) 946-6481. i cerely, r � Al Hodge, Regional Supervisor Surface Water Protection Section Washington Regional Office AHIa If cc: H. C. Harris, Jr, PE, PLS Beaufort County Building Inspections Washington Regional Office Central Files North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Internet: ncwatemuality,ora 943 Washington Square Mall, Washington, NC 27889 Customer Service 1-877-623-6748 No `hCaro'i: �tur�rllr An Equal Opportunity/Affirmative Action Employer — 50% Recycied/10% Post Consumer Paper State Stormwater Management Systems Permit No. SW7060108 Pont! 1 a. Drainage Area, acres: 5.90 ' b. Total Impervious Surfaces, ftz: 83,635 C. Design Storm, inches: 1.0 d. Pond Depth, feet: 3.0 e. TSS removal efficiency: 85% f. Permanent Pool Elevation, FMSL: 7.00 g. Permanent Pool Surface Area, ftz: 9,256 h. Permitted Storage Volume, ft3: 8,863 i. Temporary Storage Elevation, FMSL: 7.88 j. Controlling Orifice: T' 0 pipe k. Permitted Forebay Volume, ft3: 4,602 I. Receiving Stream/River Basin: UT Cherry Run M. Stream Index Number: .28-103-17 n. Classification of Water Body: " C: Sw: NSW" 11. SCHEDULE OF COMPLIANCE ' 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. Page 3 of 7 State Stormwater Management Systems Permit No. SW7060108 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. The facilities shall be constructed. as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 7. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. B. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below:. a. Any revision. to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by -the permittee, for which Sedimentation and Erosion Control Plan approval or a.CAMA Major permit was sought... f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. The permittee shall' submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum often years from the date of the completion of construction. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made: 13. This permit shall be effective from the date of issuance until March 16, 2016. 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. Page 4 of 7 State Stormwater Management Systems Permit No. SW7060108 III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form; documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action bythe Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all ' statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. $. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days. Permit issued this the 215` day of March, 2006, NORTH 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 7 State Stormwater Management Systems • Permit No. SW7060108 I Harvest Church Stormwater Permit No. SW7060108 Beaufort County . Designer's Certification 1, , 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 State Stormwater Management Systems Permit No. SW7060108 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built - upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7.. Trash rack is provided on the outlet/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. Required drawdown devices are correctly sized per the approved plans. 13. Ali required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Beaufort County, Building Inspections Page 7 of 7 OFFICE USE ONLY Date Received Fee Paid Permit Nurnb r JAN -- 9 200 �o ,V/7 U b U I U 6 D WQ_WARO State of North Carolina SW ACC, 000106 Department of Environment and Natural Resources wc, �UDivision of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, et.c. who owns the project): 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): A- DD �d �� E. rAnl14 A RD t,1 11� P&S Tat 3. Mailing Address for person listed in item 2 above: — &Sq-T 5LA-,Ta67-o14rE ft0A.0 City: State: !J C zip: X 7: 89 Telephone Number: ( Z 5Z ) � 7 — _a:glO 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): 5. Location of Project (street address): klc.ig: AT T}l15_City: ni• 1 ?,J aTo Cou nty: B as L I Fq FT— G. Directions to project (from nearest major intersection): FQ.c�►Mc TIAa kr-ATko%l of Is-T4 Sr. Js 24.q.# pgOC lniD 15-6q-IT- C,4 15"4 17-. FaR C.IS''Li• PRDIa�.T 95 nn! TA46: i.la+¢r�l S�Dc` of lS`ht Sr 7. Latitude: 35° 3� $ 0011 Longitude: 1�1 `}7� O�} r 5�� of project 8. Contact person who can answer questions about the project: Name:_}{, .. i_�Rts-r1-r.rPE, PL5 Telephone Number: L/-,'5Z ) 3ZI - SI-p? II. PERMIT INFORMATION: 1. Specify whether project is (check one) >/ New Renewal Modification Form SWU- 101 Version 3.99 Page l of 4 r 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): Low Density High Density Redevelop ✓ General Permit Other Additional Project Requirements (check applicable blanks): CAMA Major ✓edimentation/Erosion Control _404/401 Permit NPDF,S Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION 1. 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 . FLak1If SI•./�JLCS+ .�? / .7 Ze7'4E17V7 a.J Ao,✓�j 2. Stormwater runoff from this project drains to the 7_#/C - P.4.„►1_$ ed River basin. 3. Total Project Area:, q3 acres 4. Project Built Upon Area:_Z-Z.. $ 5. I -low many drainage areas does the project have?_z 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 I Drainage Area 2 Receiving Stream Name r' E4" Receiving Stream Class CL SS C s n/SW 5..� Drainage Area to-C . ��—q psi Existing Impervious* Area G7 Q Proposed Impervious*Area �Z. �C , ,Z $ A c- % Impervious* Area (total) 2 3 S 10/0 7 % Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings On -site Streets On -site Parking n 5_3 A. ez On -site Sidewalks Other on -site Off -site ,)R c , Q Total: Total: f,C * lnpervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. 0� VT A'yp3-l3 Form SWU-101 Version 3.99 Page 2 of'4 I I V 7. How was the off -site impervious area listed above derived? f-1 A DID D RA. %,I r Q & 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 gable 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 State. 2. No more than square feet of any lot shall be covered by structures or, impervious materials. Impervious materials include asphalt. gravel, concrete, brick, 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 stormwa ter management permit modification prior• to construction. 5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains tire 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 rnanagcment 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-10l Version 399 Page 3 of 4 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. 1. Please indicate that you have provided the following required information by initialing -in the space provided next to each itern. Initials • 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 $420 (payable to NCDENR) • Detailed narrative description of Stormwater treatment/management • Two copies of plans and specifications, including: Development/Project name Engineer and firm Legend North arrow - Scale - Revision number & date Mean high water line Dimensioned property/project boundary - Location map with named streets or NCSR numbers Original contours, proposed contours, spot elevations, finished floor elevations Details of roads, drainage features, collection systems, and stormwater control measures Wetlands delineated, or a note on plans that none exist Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations Drainage areas delineated Vegetated buffers (where required) VII. AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm).' —A- . C • �-� Qg R_f5, 7� p_Ei._L5 Mailing Address:__ City: ).c�r nlT�eV tLLE State: MC Zip: 49S70 Phone: (-Z-52 _ ).32/ - .S/. 017 . VIII. APPLICANT'S CERTIFICATION Fax: ( 75- } 3Z/- Z...Zo$ 1, (print or type name of person listed in General Information, item 2) -T�4Dp_J5_ T.t �_F{ RDJ MT — 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 21-1 .1000. Signature: Date: r' 0, Form SWU-101 Version 3.99 Page 4 of4 HARVEST CHURCH Christian Voice Ministries, Inc. Lilly Tract JAN - 9 2006 City of Washington, Beaufort County, North Carolina DWQ-WAR{ STORMWATER NARRATIVE For: HARVEST CHURCH Developed B : Christian Voice Ministries Inc. City of Washington BEAUFORT COUNTY, NORTH CAROLINA '•+++iprnr. +rr •` H CARQ SEAL 20158 /• G Plan Prepared v: H. C. Harris, Jr. Engineering & Surveying, P.A. 216 Main Street, Winterville, North Carolina 28590 Phone: (252) 321-5607 Pax: (252) 321-6208 e-mail: hcharris cr hcharris.net Sw I HARVEST CHURCH Christian Voice Ministries, Inc. Lilly Tract City of Washington, Beaufort County, North Carolina A. DESCRIPTION OF PROJECT: Location of Project: This site is located in the City of Washington; Beaufort County, North Carolina east of US HWY 264 and west of HWY 17. The property is accessed from 15°i Street, approximately 0.15 mi west, from the intersection of US Highway 264 and SR 1403, 15"' Street. The northern and western boundaries of this property adjoin the agricultural properties of Anna W. & D Granville Lilly. The eastern boundary adjoins the business property of the Beaufort County Committee of 100 LTD. The property may be located on a United States Geological Survey (USGS) Quad Sheet at an approximate latitude of North 35 degrees, 34 minutes. 00 seconds and an approximate longitude of West 77 degrees, 4 minutes, 15 seconds. C� Predominant Soil Types: v/ According to the United States Department of Agriculture Soil Survey of ito County North Carolina, the predominant soil types on this site are Altavista: fine loamy, mixed, thermic aquic hapludults & State: fine -loamy, mixed, thermic �J typic hapludults. Type of Development: This project is situated on a 13.35 acre tract of undeveloped land of the Christian Voice Ministries' Lilly Tract and consists of a 36,168 sq. ft. building, 2.16 acres of parking, one access drive & a 0.21 acre detention pond. The total developed area of this project includes 5.54 acres (of which 117 acres are impervious), reserving 7.81 acres for buffers and future buildings and parking areas. The proposed site development is for a church site. Earth Disturbing Activities: Presently the entire tract is being used for agricultural / cultivated farmland. The earth disturbing activities will be the striping of topsoil, grading for the proposed parking lots & access drive, grading for the proposed swales, ditches, building pad, and the excavation for the proposed detention pond. Christian Voice Ministries has reached an agreement with Beaufort County Committee of 100 LTD to utilize the existing Beaufort County Committee of 100 LTD's drive (to the old "Lower" building) to avoid another crossing of the existing blueline stream located between 15`f' Street and the proposed church. The total area of disturbance equals 8.12 acres. Existing Drainage Patterns: The site is a cultivated field which is crowned in the approximate center of the property. The southern three quarters of this site drains from this center crown towards the southwest with surface water sheet flowing across the site into the existing swale prior to flowing into a drainage canal / blue -line stream flowing SW 2 HARVEST CHURCH Christian Voice Ministries, Inc. Lilly "Tract City of Washington, Beaufort County, North Carolina southeast to northwest across the southern end of the site. The rear northern quarter of the site drains by sheet flow from the center crown towards the northeast to a drainage canal / blue -line stream again flowing southeast to northwest across the northern end of the site. Proposed Drainage Patterns: The intent of the design of the proposed drainage patterns is to match the existing drainage patterns as much as possible, while maintaining positive drainage for the development and yet minimizing the impact on the Tar -Pamlico River Buffer Zones. All drainage on the southern three quarters of the site shall be routed to flow through vegetated swales and then to the proposed detention pond for treating the majority of the runoff prior to draining into the southern canal / blue - line stream. The northern portion of this site shall continue to be drained via sheet flow with the roof drains of the proposed building flowing into a grass -lined swale, then sheet flow prior to discharge into the northern stream. Both northern and southern streams are un-named tributaries to Cherry's Run which flows into Tranter's Creek which in turn flows into the Tar River. Cherry's Run is classified as a Class C stream with Nutrient Sensitive Waters (NSW) and Swamp waters (Sw). The proposed drainage patterns of the Drainage Areas as shown on Plan Sheet C3 are summarized as shown below: Drainage Area : Drainage Sequence: A Sheet Flow into northern stream B Drainage Swale then Pipe No. I then Forebay then Detention Pond C Roof Drain Trunk Dine then Swale then Pipe No 2 Then Outlet Swale then Sheet Flow then northern stream D Drainage Swale then Pipe No.3 then Forebay then Detention Pond E Flume 1 then Forebay then Detention Pond F Detention Pond then Outlet Swale then existing swale then southern stream G to remain as is. undisturbed. Sw 3 HARVES`t' CHURCH Christian Voice Ministries, Inc. Lilly Tract City of Washington, Beaufort County, North Carolina The new proposed outfalI ditchs have stone velocity dissipating aprons that reduce the discharge to less than the maximum permissible velocities of the ten- year storm of'2.5 feet per second for fine sand or sandy loam. B. STORMWATER TREATMENT AND MANAGEMENT: l . The proposed initial project built upon area for this site is less than 30 percent (22.8%); however, future expansion plans will exceed low density requirements. In order to be more pro -active in treating stormwater and to facilitate future expansion, this design incorporates a wet detention pond for this initial phase of construction. As stated above under proposed drainage patterns the majority ofthe stormwater shall be treated by a series of swales and then either draining into the wet detention pond or through excavated swales then into sheet flow prior to leaving the site. 2. Maintenance of'grassed swales shall involve the following: At least once per year (more frequently if needed), remove excess sediment, especially frorn upstrearn edge, to maintain original contours and grading to ensure that runoff flows evenly in a thin sheet through the swale. At least once per year, inspect vegetation and reseed if necessary to maintain a dense growth of grass. Grassed swales shall be mowed at least twice annually to a minimum height of six inches. Du Not Fertilize s►vales (grass swales are designed to remove nitrogen From storrn water and shall receive sufficient amounts upon normal filtering action throughout the year). 3. Maintenance of the Wet Detention Pond shall involve the following: Periodically clean trash from the grate of the drop inlet as needed. Maintain the vegetative (grass) cover above the permanent pool elevation in a like manner as grassed swales as shown above. Clean out sediment in the Forebay and the main pond area when sediment exceeds 25 percent of the original depth (when red paint is showing on sediment Clean out markers. Adhere to all other maintenance measures as shown on page 3 of 4 of the permitted Wet Detention basin Supplement. SW 4 H.0 Harris, Jr. EnLyineerinLy & SurvevinLy, P.A. 210 MAIN STREET WINTERVILLE•, NC 28590 PHONE: (252) 321-5607 FACSIMILE: (252) 321-6208 - E., 6 V `u MAR 0 2 2006 ®1�Q-WARO To: NCDENR Water Quality Section Date: March 2, 2006 Project No. 05083 943 Washington Square Mail Attention: Amy Franklin Washington, NC 27889 RE: Stormwater Review SW7060108 Harvest Church Beaufort County WE ARE SENDING YOU Attached Under separate cover via the following items: ❑ Shop drawings X Prints ❑ Plans ❑ Copy of letter ❑ Change order ❑ Samples ❑ Specifications COPIES DATE No DESCRIPTION 2 each 03-01-06 Revised Site Drawings THESE ARE TRANSMITTED as checked below: X ,'or approval ❑ Approved as submitted �,,/'� your use ❑ Approved as noted Z requested ❑ Returned for corrections ❑ For review and comment ❑ ❑ FOR BIDS DUE 19 REMARKS: ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints ❑ PRINTS RETURNED AFTER LOAN TO US Per your letter dated February 2, 2006 please accept the revised drawings per your comments and request for additional information. As we discussed by telephone the roof drains have to outlet to the rear of the property into the swale (then sheet flow prior to the rear stream) as shown due to grade requirements. Plan sheet number C8 was added to address the additional details that you requested. If I may be further assistance, please advise. Respectfully, 42 A.C.(Cliff) Harris, Jr., PE, PLS F:12004 Pr0jects105083C1'rans02 Amy Frankliy.doc Michael F. Easley, Governor V ao William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality February 2, 2006 Pastor Thaddeus E. Tankard, I11 6897 Slatestone Road Washington, NC 27889 Subject: Stormwater Review SW7060108 Harvest Church Beaufort County Dear Pastor Tankard: This office received a Coastal Stormwater permit application and plans for the subject project on January 9, 2006. A preliminary review of your project indicates that before a State Stormwater permit can . be issued the following additional information is needed. D Please note that the roof drains should be directed to the wet pond. If future development is planned all impervious surfaces must be directed to the wet pond. phoAx conVef'Sa- on W+A ix M14i0ck D/ Please clearly label temporary and permanent pool elevations on the pond. 1b'PytfG Jj �fGcc7rnta»r Please provide a to scale blow up of the pond plan view. l� Please note that the vegetated shelf should be 10 ft wide. Please include pond outlet detail. The above requested information must be received in this office prior to March 4, 2006 or your application will be returned as incomplete. The return of this project will necessitate resubmittal of all required items including the application fee. If you need additional time to submit the required information, please mail or fax your request for time extension to this office at the Letterhead address. You should also be aware that the Stormwater Rules require that the permit be issued prior to any development activity. Construction without a permit is a violation of 15A NCAC 21-1.1000 and North Carolina General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day. Please reference the Stormwater Project Number above on all correspondence. If you have questions, please feel free to contact me at (252) 948-3934. Sincerely, j Amy L. Franklin Environmental Engineer Washington Regional Office cc: ./Washington Regional Office H. C. Harris, Jr, PE o ` NhCaro Aaturai North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Customer Service Internet h2o.enr.state.nc.us 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer - 50% Recycled110% Post Consumer Paper � 1: L. H.0 Harris, Jr. Enuineeriniz & Survevini, P.A. 216 MAIN STREET WINTERVILLE. NC 28590 PHONE: (252) 321-5607 FACSIMILE: (252)321-6208 JAN - 9 2006 DWQ-WARD To: NCDENR — Water Quality Date: 01/09/06 Job No. 05083 943 Washington Square Mail Attention: Amy Franklin Washin Eton, NC 27889 Re: Harvest Church in Washington, NC WE ARE SENDING YOU Attached Under separate cover via the following items: ❑ Shop drawings X Prints ❑ Plans ❑ Copy of letter ❑ Change order ❑ Samples ❑ Specifications COPIES DATE No DESCRIPTION 2 01/06/06 24- s 36° Plans for Harvest Church in Washington. NC 2 Wet Basin Design 2 Wet Detention Basin SLIPPlement 2 Drainage Calculations 2 Storm Water Management Permit Application 2 Storm Water Narrative 1 1 1 /28/05 Check # 4760 made to NCDENR - $420.00 for Harvest Church Storm Water Permit THESE ARE "TRANSMITTED as checked below: X For approval ❑ Approved as submitted ❑ For your use ❑ Approved as noted ❑ As requested ❑ Returned for corrections ❑ For review and comment ❑ ❑ FOR BIDS DUE 19 ❑ PRINTS RETURNED AFTER LOAN TO US REMARKS: If you have any questions tfleasc let us know. Respect fu I l, N.C. (Cliff) Harris, Jr., PE, PLS FV005 Pro.Iec1s105083V1'raris0l DWQ.doc ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints Catchment Area 1: I _— i— —I I I I 1 Determine surface area of permanent pool:I� �I I —I Site imervious area -_ _ ; _ - 1,921Acre I I I i p �ITotal Site area = T 5.901Acre I I I I -----I I I �I Impervious Area ! Total Area = i 0.331 X 100 = I 331% 1 ---� - - -I Permane.00 nt Pool Depth: 3Ft �IAt Elev. = 4.0' - 7.0' -I ---- - - - I I I (From Table 3.3-2 NCDENR, DWQ Slormwaler Site Planning Guidance Manual: _ I� % Impervious 3_0' -I- '- ---- 30 -2.5 --- - - _I - 33 28 I- - -_ 40 34 IR_ equired Surface Area (SA): I -_-- SA = (2.81100) X- 5.90 Acre 1 SA = ! 0.1_71Acre _ _ _i 7196.11 ISF I j Permanent Pool Surface Area Provided_: - L - _ _J - 9256.00i5F IAt EIev, = 7.0' Surface area provided exceeds surface area required. i I — I�— _ 2 1 Determine voium_e_ controlled by 1" storm: _ IRv =Runoff Caetiicient (inchlinch) 1 - _ _ I -I- — 1= Impervious nta Percege I 1— I I I ,Rv = 0,05 + 0.009( I) Rv=1 0_.34inchhnch-I _T_-_--- JVolume = Design Rainfall X Rv X Drainage Area I I I I ;Volume = V (Acre Feel) _ I jDesign Rainfall = V Storm (inches) l Mrain_age Area = Total site area * oftte drainage flovnng onto project, if any (Acre)- _— V =1 0.1691,Acre Feet I 1� V =1 7343.491Cubic Feet, CF I I ITom_porary Pool Volume Provided: —T 'Area at Elev. 7,68' = 110888LODISF _ I Area at EFev. 7.OD_�- 925fi,00 SF - I— I (Average End Area: _I 100_7.2,00 SF IMultiplied By Depth_ 1 0,88 FT i J (Volume= _I 8863,36ICF I —1 Volume provided exceeds volume required. 3 (Determine Pori Dimensions:�— r_ I _ I Length to width ratio: 3:1 or greater_ I As measured at Elev_. 7.50' : I -_ I j Width Provided 64.00 FT I 1 I _(Length required. Width x 3 (Length required----� _ 192 FT _ I _ Length Provided: 212.00 FT I I I (Length provided exceeds length required. Area M Elev. 7,00' - I 9256,p01SF Area at Hev. 6.00' = I 5904.00 SIF I 1 Average End Area: I 75SO.OD�SF _I IMultiplied By Depth' 4 1.0OIFT :Volume = ' 7580.00ICF- Y I_I_ � ,Area al Elev. 6.00' = 5904.00�SF - IArea at I . 4,00' =_ j 3372,00{SF j Average End Area: j 4638.00 SF I I I_ IMultiplied By Depth: 2.00'IFT- !Volume = ' Y 9276,001CF I I 1 Volume = _ i6856.00 CF ,Total Ibete_rmine Forebay Volume: Forebay = 20% of the basin volume Forebay Volume Required = 3371.2_0_1CF I_ Forebay Volume Provided: ! Area at Eev. 7.007= 1 2656.156ISF I IArea at Ell 6.00' _ 1619.00 I Si= 'AveraEnd Area. EArea. _2137.50ISF-- Multiplied By Depth- 1.00IFT I I Volume = I 2137.501CF I _I I - -. _ _ - - j- I- -� _ I Area at Ell 6.00' =_I 1619.001SF 1 I - I I ;Area at Ell 4.00' = 846,0O I I _ I Average End Area: 1232.50SF ISIF _j _ ultiplied 6y Depth: _ 2.OD�FT M ;Volume= I 2465.00ICF Total Volume = 4602.50-ICF --- - -Forebay -1_ volume provided exceeds forebay volume re_quired__- --- - Volume Allowance for Sediment Slorage: I 1231.30 4 !Size Drawdown Orifice: -Size orifice to drain the runoff volume of the 1" storm over 48 hours to 120 hours _ --!Use: I 3 days = 72_hours _ - I-- V =r _7343.491CF i Q =I 73Z.AA (CF772 hour_sj`(LO hour/60 minut_e_s)*(1,0 minute! 60 seconds) O = 0._03ICFS - Use Orifice Equationd i --1 -D = Cd_'A_(2gh)^1!2- IWhere: I_Q =Discharge (5TTWcient_(CFS) I - !Cd = Coofficienl of Discharge (Dimensionless) -I- !A = Crass Sectional Area of Orifice Pipe (SF)I- I Ig _ Acceleration of gravity, (32.2 FlSec'2) -I-_ in = Pressure Head as measured from the centriod of the orifice pipe to the water surface T- i -- _Cd =0. ypical Default -- -I-I - - h = 11.5 -0.5 {Pipe diameter) - I --I- - - I I I F_or a� 2.00i Inch Diameter Pipe: - I.- I A=1 0.02j-- h = 1.42I __I Q =1 0.135FS !Too Lar eJ___1- I- _I Fnr al 1_.0011 iron Diameter Pipe 0.01 I- - _ I - Q_ 1 0.03lCFS Provide 0.5 LF of 1.00 Inch Diameter of PVC Pipe For On6ce Pipe With Reversed Slope:_ T 7.00'Jlnvert Adjacent to Outfall ! Riser Pip --� !- 6.75' Invert In I - REMITTANCE ADVICE H.C. HARRIS, JR. ENGINEERING & SURVEYING, P.A. 216 MAIN STREET WINTERVILLE, NC 28590 PH, 12521321-5607 PAY ��� A Ti�/�i� to 06-3 DOLLARS DATE I TO THE ORDER OF I DESCRIPTION CHECK NO. /l'ZS-a3' C . D. t. Al R . _ .SToR G z i/�1R yG s r cA -"'r BB&T Il ranch nnnkl nR and Tru%( Company 66-112/531 I 47HEC K AMOUNT Wet Basin Design For: ; -Harvest Church _VCatchment Area 1: I -1Determine surface area of permanent pooh. !Site impervious area =r I 1.9_2lAcre Total Site area = _V- i 5.901Acre Im ervious Area 0.331 X 100 1 Total Area = P (Permanent Pool l epth: 3.00IFt __ Al Elev. = 4,0' - 7.0' t _ From Table 3,3-2 NCDENR, DWQ Siormwater Site Planning Guidance Manual, I 1--f�f%Imperviousl- 3-0 j- _I vl i{ 30 _ 2 5 I- - 33 2.8 1 - -1-- --I' -1_ ---- �Required Surface Area (SAS: - -SSA=(2.81100)X5.90Aae II_ _4 D,17:Acre -,_I_ 7196.11 SF I Permanent Pool Surface Area Provided: I I 1 9256.00 SF !At Elev, = 7.0' !Surface area provided exceeds surface area required. I j 2 Determine volume controlld_b ey 1" storm: - IRv = Runoff Coefficient (inchlnchy I W - II_ Impervious Percentage - Rv -Dos + o.o09{ I I Rv = 0.34.1inchrino I_ VVolume = Design -Rainfall X_Rv X Drainage Area _I _ ' Volume = V (Acre_ Feet) - Design Rainfall = 1" Storm (inches' I I Drainage Area = Total site area + offsite drainage flowing onto project, if any (Acre)_ V =' 0.16977cre Feet I _I I _V = 7343.49ICubic Feet, CF !Temporary Pool Volume Provided_ Area at Elev. 7,0 = 10888.00 SF 1 _ iArea a1'Elev, TOO _ 9256.00ISF- 1 - - !Average End Area: _1 10072.00 SF h - 1 _ IMultiplied By Depth:- F�0.8BIFT — I i_ 8863.361CF Volume provided exceeds volume required. 3 !Determine Pand Dimensipns: - _ _Length-tc width ratio: 3:1 or great_or- - - As measured at Elev. 7.50'_L— _ - - Width Provided: i 64.OQIFT Length required: Width x _ uir3 ; - Lengthreqed: I 192IFT _ Length Provided:__ 212.00IF_T-- 4-ILength provided exceeds length required. i JAN - 9 2006 DWQ-WARO !Permanent ` _ 1Oetermine - Pool Volume Provided; I JArea at Elev. 7.00' = _I Area at Elev. b.00' = i !Average End Area: iMulEip#iod_By Depth_, i__ [Volume _ - I IArea at Elev. 6.00' = jArea at Elev. 4.00' = I I iAverage End Area- 1_ I Multiplied 9y Depth_ i I IVolume = j jTotal Volume = Forebay_V-iollume: 20% of the basin volume Forebay Volume Required = 3371.20IC_F Fo-re bay Volume Provid1ed; I I _I Area at Elev, 7 00' = 9256.00 SF j 5904.00 SF f I+ 7580.00 SF 1 I 1.00 7580.00)CF FT 1 II 5904.00 3372,OO SF 4638.00 2.00FT 9276.00ECF j 16856AOICF i -I _-I_ I I 2656.00 SF I 1 _IAreaatElev. 6.00'= I 1619.001SF _ 1 _ Average End Area: ! 2137501SF IMulliplied By Depth_ ___ 1.00IFT- __;Volume - j - -_ _ 2137.50 CF _I Area at Elev. 6,00'= I 16i9'00�SF I AArea at Elev. 4,00' = I 846.00 SIF Average End Area, _ I 1232.50 SF I !Multiplied By Depth: I- i Volume = 2455 00 CF I i - i I _ iTolal Volume = 4682.SOICF I I jForebay volume provided exceeds forebay volume_r_equ_Iired, Volume Allowance for Sediment Storage: _1231,301CF I 4 Size Drawdown Orifice'. Size onfice_ to drain the runoff volume of the 1" storm over 48 hours to 120 hours Ip I - Use: 3_d_ays�:- 72 hours V=', 734-349j(;F --�I 43 49I(CFI72 hours}"{1,0 houR60 minutes)*(1.0 minute! 60 seconds) 73 I O =j 0.031CFS �T I f Use Orifice Equation: 14 _ __ia = cd•A'(2gh}"112 - _ L- _ _�-_---� -� -1 I _ !Where_ Q = Discharge Coefficient, (CFSj-_I___ _j- C_d =Coefficient of Discharge (Dimensionless) -I I A_= Cross Sectionat Area of Onfice Pipe (SF}- 9 = Acceleration of gravity, (32.2 FISec-2) I h = Pressure Head as measured from the centnod of the onfice pipe Ie the water surface (FI) I I Cd =1 0.6 ITyi Default h = 1.5: 0.5 (Pipe diameter} - _L_ !_ Fora _2.0011nchDiameterPipe:- -- -� - A_- - — -- I-- —j -I - O =i 0.131CF5 !Too Large! I _I _ - =1=- Fora 1,OOiInch Diameter Pipe; I _ 0.01 h= 1.46 _ -_�Prvide 0.5 LF o1 1.00 Inch Diameter of PVC Pipe Far pnf ce Pipe Wi[h Reversed Slope: 7.0Vj Invert Adjacent to Outfall ! Riser Pipe I _ 6_75 fInvert Ini-- Drainage Calculations: lHarvest Church I j Structure No. Pipe-1: West Side of Parking _� Determine Tc, Time of Concentration (Min.): -_ ---- I--rc-=l((LA3)iH (385)1128 [ - 'Where, L, Hydralic LengFT)-I_ 1 'H, Hydraulic Fall, For DrainageAreaB L I H = lIntensity From Chart_SD-1 _ _ I =I ! _ _-�- I =_I_ I Use Rational Method: _ - IQ =CIA - I 1 W_here: Q, CFS _ 1 _ _ _ _ ` _j J _ - IC, Dimensionless - { I 1, Inches Per Hour I IA, Acres ITota1 Area of Drainage = - lArea of Asphalt, Bldg., & Drives = Wrea of Grass = TSmmation of C = . IC = I Q =� Size_Swale:.I- _ _ I Determine __ Minimum Depth, Y: 1 - - T 1Y=Cm[(Q'n)1(S)A0.5j6K - _� j Y =1 0.78 _ USE: _ 1.001__- JCheckVelacfV-QlA V =1 2,38 --- I I ! th, ( (FT) I �- I - 9 200 j _ _ .BAN= 4 I -- - - _ _ 5.02 ' __-5.3JTT 7.8lMin.-- - 5.0211ncheslHour�- 6.8411ncheslHour Ip2 Year Storm 110 Year Storm 1 _ II, 2-Yr. = j��- II, 10-Yr, - I _ 6.84 [ IC For Asphalt, Bldg., & Drives = �1 - 0.9 0.2 I IC For Grass = _I I I 3.75 (Acres _1.13�[Acres- 2.62 -_I JAcress_ 1CFS 10Yr. [C1-A1+C2'A2] l Total Area-I .41 0- _.----1-..�-. 7.7 CFS 2Yr. I 1_ Q 1 10.5 I��_ I I Where: IY, Depth in Feet I - -[ Cm = 0.653 j 3:1 Side Slopes _I In, Manning's Roughness Coefficient, , _� Grass -lined = 0.035 1 -1- I IK= IS = 0.325 ,------ 0.0035 - Cross -sectional Area of Ditch, SF__- FU�sec I�i� V, is less than 2,5 Ftlsec, Grass Lined is Acceptable [Proposed Excavated Depth of Ditch is Greater than 0.78 Feet Due to Grade Requirements I (Size Pipe: _ _ _- re: WheD, Diameter in Inches I _E II�_-�n, Dimensionless j- 0.0101For HDPE _ _ D = 16[(Q'n)1(S)"0_ 5]^0.375 I S, Slope - FUR 1 0.006 - _ D _ ii7.96 (Inches - �- �- - -- USE: 1- ---18 r' HDPE J. _ -_ - -I HWID = 1 1.311 52.00 L_F of Pipe includes F.E.S. on both ends -- _ Invert In = .84 _ I Invert Out = I 6.531- 1 4 Check Velocity: - IV = Q!A I A= 1.771SF I I I �- 5.96'Ftlsec _1V is greater than 2.5 Ftlsec: IDetermine TailwaterDepthI_ __ =[ 0,56 Ft From Figure 8.05d 1--� ----_ d 1.1.2_Outlet _Pipe Diameter = _ I _ _0.75�Ft Tailwater depth is less than 1/2 outlet pipe diameter; therefore:__ Minimum tailwater conditions exist -I I USE: I Class B Riprap Apron with G_eotexfile Underliner pro-� _-- (An Depth = I- 1,OO�Ft - - - (Apron Lengthom = I_ 22.001Ft �I_ Apron Bottom Width = 2,OO�Ft _j I I 1Apron Side Slopes = 2.75[Ft IEach Side -� ]A ronSla e= I- 0.001% I I _0 Structure No. Pipe-2. I_ Roof Drains & Rear Outlet Swale _ _ Determine Tc. Time of Concentration (Min.}: — I- Tc=.(((L^3}IH)^0.385)1128 - - IWhere: L, Hydralic Length, (FT) H, Hydraulic Fall, (FT) 7 1For DrainageAreaC: L = 30011FT A - T-- H=1 1.61FT I Tc =1 4.7 Min. (Intensity From Chart SD-1: - I = _5-66 Inches/Hour I = _ 7.50 Inches/Hour Use Rational Method: 1 (Where: _ _IQ, CFS — 1C, Dimensionless I _ I Inches Per Hour I IA, Acres l ITatal Area o£ Drainage_= O,fifi Acres — IArea of Asphalt Bldg., & Drives = 0.55 Acres Area of Grass = I 0 11 _Acres �TSummation of C = [C1 "A1+C2'A2] 1 Total, `.. C =1 0.78 _ Q =1 2.9 ICFS 2Yr, Determine Minimum Depth, Y: I Where I_-- --IY=Cm[(Q'n}I(S)^ I5]^K - I - �- USE 5.0 Minute Minimum 12 Year Storm --- 110 Year Storm I, 2-Yr. _ I, 10-Yr. _ -- C For Asphalt, Bldg., & Drives = C For Grass= —0=1 3.9 --- Cm = 10.595 Grass -lined = 10.035 _ _ _ _ K = 10.246 It1SE: 1 1.$$ _- - I 10.0027 _IA, Cross -sectional Area of Ditch, SF (Check Velocity_ -- ! iA = —1 17.39 ( I I I V=F 0.171Ftlsec -IV, is lass than 2.5 Ft/sec: Grass Lined is Accepta to FS 10Yr- --_� 4:1 Side Slopes Size Pipe_ I -- Where:— D, Diameter in Inches _i Dimensionless 0 010 For HDPE -- 1 = 16[(Q'n)/(S}^Q5]^0.375 -1 -- —In, S, Slope - Ft/Ft I- 0,005 - — _ID --- D = 12.77 - USE_ 1 151" HDPE _ I -�HWID-_-- - - _Ilnches _ 1 36.001LF of Pipe includes F.E.S. on both ends {��-- glgfnvert In _ i 9.56 (invert Out = 1 9.38 I _ A IV - Q1A I Check Velocity: A= V =1 3,16_IFtlsec IV is greater than 2.5 Fttsec: - -� --�-- -_ , Determine T_I a_ ilwat_er Depth: I d =i Ft From Figure 8.05d 112 Outlet Pipe Diameter = I I _ !— I _0.4 0.62S�Ft __i - 1_ ITaiiwater depth is less than 1/2 outlet pipe diameter; therefore: IMinimum tailwater conditions exist I- _ I ;USE: (Class B Riprap Apron with Ge_otextile Underliner I iApron Depth = - I - -- 1.01Ft - ----1- _ I-- Length = I 101F1 -'- -- - �IApron (Apron Bottom Width = 4.001 Ft Apron Side Slopes = I 4.60IFt Side - A ron 5lo e = —(Each 0.001% ! I I- Structure No. Pipe-3-- East Side of Parking iDetermine To, Time of Concentration I To =,({{L^_3}!H)A0,3B5)1126 Where: L, Hydralic Length, H, Hydraulic Fall, For Drainage Area D: T L =1 - - - -H _ -I i _- I T Tc =l jlntensity From Chart S_D-1: ' _ _ 1 =1 1 =j (Use Rational Method: (Where: Q, CFS C, Dimensionless, _ J I, Inches Per HourForAsphalt, I1, - -- (Total Area of Drainage = (Area of Asphalt, Bldg_, & Drivas = IAr_ea_o_f Grass =_ j I _ 5_ummation of C = I - C =I Q -1_ Size Swale _ _ (Determine Minimum Depth, Y: i- ---_-1Y=C_m[(Q_'n)/(S)40.5]4K I Y = I 0.41 - 1- --- -i i I (USE_: i - 1.001_-- - !Check Velocity: I _ - I v= QIA I___ I V =1 0.08 - i-- - -I-- -I _--I I (F_T) j_- (FT) 3951FT FI I 5.6I FT I J _ 4.011 5.6oIInches/Hour* !USE 5.0 Minute Minimum J2 Year Storm 7.5011nches/Hour) 110 Year Storm 11, 10-Yr. I 0.75 Bldg„DrivE_& C For Grass = (Acres I I 0.17 Acres I T — i 0.58 '1Acres j 1— _ j[C1'A1+C2'A2] / Total Area I 0.36I _ 1.5 ICFS 2Yr. 14 I Q =1 _ I I _ I i Where: IY, Depth in Feet = 0.653 I J— I —_ _ --ICm n, Manning's Roughness Co+ Grass -lined = 10.035 --jK = 0.325 IS= }O.D11 IA, Cross -sectional Area of D IA = 18.84 FVsec 1 1 I V, is less than 2.5 Ft/sec: Grass Lined is 1- Proposed Excavated Depth of Ditch is Greater than 0,41 Feet Due to Grade Requirements I _ ISize Pipe: I - - -1--- U_SE: 151" �88(iol ' �- -- - - ^J - I - 16[(Q"n)1(S)10.5]10.375 _ j D =� 111,7_9_ - 1Inches RCP_ _I I - LT of Pipe includes_ F,E.S. on both ends llnvert In = I 7.86��1nvert i I Where: D, Diameter in Inches I n, Dimensionless l� S, slope - FUFS I I 1— 1 = 1.711 I Out = I 7.55I J� 1 i 5,60 - 7.50 0.2 _ I _ 2.D —ICFS 10Yr. I 3:1 Side Siooes Check Velocity: _ V_= 01A I A=!1.23 5F V =1 _ - 1 64 1Fdsec V is less than 2,5 Ft/sec:— No Apron 131 For RCP Structure No. Flume-1: Front Parking_— IDetermine Tc, Time of Concentration (Min.): -� _ (((L"3)IH)^0_.385)/128 I I I I Where: IL, Hydralic Length, (FT) i I -_ H, Hydraulic Fall, (FT)_I ]For Drainage Area E_ L = -_ 324 FT I I 4.81 FT I I _ Tc = 3.4 Min. j USE 5.0 Minute Minimum Intensity From Chart SD. 1; I =l _ 5.60 IncheslHourl! �2 Year Storm T_- - I =I 7.50 inCheslHourl I10 Year Storm (Use Rational Method: I I I iQ = CIA - I- - - _Where: _CFS _ i __ I_ lt, 2-Yr. = I I C, Dimensionless -- - I ll, 1D Yr. _ l--- -, I, Inc—1 hes Per Hour I IC For Asphalt, Bldg., & Drives = - I- - A, Acres ITotal Area of Drainage = I 1.41 (Acres I_ Area of Asphalt, Bldg,, & Drives = - - -I- 0.98 (Acres (Area of Grass = � I 0.43 (Acres _ ]summation of C = IC1'At +C2"A2) / Total Area -- I - _ C= 0.69 USE: 16.0' Wid_eConcrete Flume __ heck Velociiy_ IV = &A ; - � _ _A= 3.001 5E C V -� 2.42)Ftlsec V is less than 2.; _�- Apron Not required; however use the following for added protection: - .MUSE: Class B Riprap Apron with Geo_textile Underliner _ �— _- I (Apron Depth = 1.DIFt 6 olFt fl— -- Apron Bottom Width = 6.001Ft l— -I lApron Side Slopes - I 1.00IFt Each Side I TApron Slope = �I _ 0.001% 1 I— rass = 1 5.60 7.50 _ 0.9 I 0,2 Q = 7.3 ICFS 10Yr_ Structure No. Pipe 4: Detention Outlet: _- l_Determin_e Tc, Time of Concentration (Min,): - Tc-',(((L^3)IH)"0.385)/128 i- - IWhere: 'L, Hydralic Length, (FT) I j 1 H, Hydraulic Fall, (FT)�I _For DrainageJArea F: - W L =1 397,O1FT - - _H_ 7 FT _ - - - -� T_c=1 6.311 1lntensity From Chart SD-1: 1 =1 _ 5.241Inches/Hour1 12 Year Storm _ I =1 7 T411ncheslHour 110 Year Storm _ IUse Rational Method: Where: IQ. C_F5 I--- - - -- - I, 2Yr.- _ Dimensionless_I I_ !, 1D-Yr. = f I _ If Inches Per Hour C Sediment Basin = - IA Acres F I C For Grass = I Total Area_of Drainage = 0.40 Acres (Area of Sediment Basin = - 0.30 Acres I Area of Grass = _ 0.10 (Acres I- I !Summation of C = [Cl-Al+C2-A2] l Total Area _ I - - -- J For Drainage Area F: IQ = 1,7 ICFS 2Yr. jFor Drainage Area B: Q = 7.7 ICFS 2Yr. - T IFor Drainage Area D: =1 - 1.5 ICFS 2Yr. IFor Drainage Area E: _Q Q = 1 5.4 !CPS 2Yr., ITotal 0: j I Q = 16.3 2Yr, I_ -ICFS 1 A. _ -- - Size Swale: _l _ 1 A- I- i Determine Minimum Depth, Y: I _ _ Where: Y, Depth in Feet 1 - TY=Cmf(&n)1(S)"0.5]"K Cm 10.653 --j0.2 Q =I- 2.3 ICFS 10Yr,� Q =� 10.5 ICFS 10Yr. Q =1 2,0 ICFS 10Yr, Q = 7.3 -1CFS 10Yr. Q =I 22.1 CFS 10Yr. Manning's Roughness Coeffic i- Y =I 0.94 I Grass -lined = �_ 0.035 -I I0.325 I _ ii I 1.00 _ S = 10.006 A, Cross -sectional Area of Ditch CCheck Velocity: -1 1 A = I18.00 3:1 Side Slopes =_q1A- I 0.91 Ft/sec IV, is less than 2.5 Ftlsec: Grass Lined is Acceptable i -i ---i I--"---1 Pro osed Excavated Depth of Ditch is Greater than 0.94 Feet Due to Grade Re uiremenls I ;Size Pipe: I 1_ _ __IWhere: _ ID, Diameter in Inches I_- n, Dimensionless 0 0101- . = 16((Q"n)1(S)10.5]10.375 1 - S, Slope - Ft/Ft 1 0.0061 _ -1D I D 23.71 _I (Inches USE: 18I,. HOPE 1_ -E - - _ _ . k 50.00_ILF Pipe of includes_F._ S. on outlet end 1 1 _ - - (Invert In = 5.30jInvert -1 Out = I 5.00 1 Check Velocity: _ V = QlA I _ _A=1 1,77 I I 1 SF 1 I I - . I V =_€ 12_.51IFt/sec V is greater than 2.5 Ft/sec:: I _ i T I -- I _ (Pipe is under Inlet Control Conditions - 1.(- MUSE: Klass B Apron with GeotexWe Underliner 1 I 1 1 !Apron Depth = --1-0 FF _ _IApron Length = I 2_6.001Ft I -_I I- _I- 1Apron Sattom Width = I_ 3 OOIFt I I IApron Side Slopes = I 9,001Fi_ -I _(- Each Side 1 I- IA ron Slope = I D o01% I i I - Existing Conditions Drainage Areas A & C: Determine Tc, T_ ime of Concentration {Min.}�I — -I I----- ; _ _ Tc=I(((L^3)1H)"0.385)1128 IWhere: _IL, Hydralic Length, (FT) I I I IH, Hydraulic Fall, (FT)-J 300 FT _ Tc =1 - 4.71Min. I ;USE 5.0 Minute Minimum I __ Intensity From Chart SD_-1: _I.. __..S .I_ 7,511nches1Hour l---i10 Year Storm IUse Rational Method:--- 1Q=CIA- 1Where: Q, CFS -� {� — I — - I, 10-Yr. i IC_ Dimensionless I _ _ L` C For Asphalt & Bldg. & Driveways = 4 {I, Inches Per Hou�rr1, 10 Year Storm_ + - IC For Cultivated Fields, RowCrops— ! 'A, Acres- -.,- -I - --I-- I Total Area of Drainage =_ _i-- - { _ 5.65 (Acres Area of Bldg_-, Drives, & Asphalt _ - _ _ _I 0.00 (Acres (Area_ o£_C_ ultivated_Fields = - - I_ 5.65 ,Acres_-- { summation of C = I[C1'A1+C2-A2) / Total Area C ={ 0.60 I V __ Q =I _ 25.4 (CFS-- Drainage Areas B, D, E, F, & G: f Determine T_c, Tim_e of Concentration (Min,): ---- -. i, — I IWhere: L, Hydralic Length, (FT):� - H, Hydraulic Fall, (FT)-i- I II L=I 6921FT----- i5.3_IFT __ 1 ]Intensity From Chart SD-1: j ! =j 6.811ncheslHourl _110 Year Storm jUse Rational Method: IQ = CIA -� IWhere: _ _ IQ, CFS _ _{ _- 1I. 10-Yr. _ I _{C, Dimensionless - -I _ _ -j - IC For Asphalt & Bldq. & Driveways i VI, Inches Per Hour, 10 Year Storm _ I 1A, - Ac_res 1 Total Area of Drainage = { I 8.14_ iAcre iArea of Bldg__Drives, & Asphalt = { 0.00 (Acre { Area of Cultivated Fields = 8.14 Acre - - - - - . L— i �5ummation of C = - 11CVA1+C2'A2) 70.67o 33.4 1CFS E V Total Q ={ 58.81CFS 1C For Cultivated Fields, Row Crops ! Total Area - __ 7.5 0�9 0.6 009 0.6 On Site Post Development Conditions F�o_r Drainage Area A:-- T- -IDet—erm-ine- Tc, Time of Concentration (Min.): A3 ]HrO. 385 E/1 2-8-::7 'Where,_ -j L, Hydralic Length, (FT) -1H, Hydraulic Fall, (FT) 390ITT— J- Tc =1 2,91Min. I USE 5.0 Minute Minimum I ntensity From Chart S D- 1: 110 Year Storm Use-Rit"iona I Met - hod: id=�ZIA I I 1- —1 1 1 1 i�h ere: b.-CizS 1, 10-Yr. = I- - — —I— C For AsphaJt & BT9-&,- veways Dri I-, Inches Per Hour, 10 Year Storm �C For C�-ra—ss-- !A, -Acres .--7 --F-7 'TutalAreaofDrainage= 4.99 Acres Wea of Bldg, Drives, T-A�-phalt 0.47 Acres -(-Area of Grass 1 4,52 JAcres J- �4umma&on-of-c CI Total Area -=� 0.27 0 1-0.0 -jCFS For Drainage Areas B-F: For Drainage Area G: — -f�.- - — - ---- J-1 --1— -1 TDetermine Time of Concentration (Min.): fc =7 F((LT3)!H-)AF385)J128 Where:Length, (FT)-L-- _1t,_Hydraulic Fall,_(FT)_I_l I__ -2-25 FT 8.51FT L 1.81Min. I --,IUSE 5.0 Minute Minimum Intensity From Chart S D- 1 1=1 7.511ncheslHFourj 110 Year Storm -Jbse-Rational Method: I Ohere.: -1d. dFS 1 11, 10-Yr. -1c, Dimensionless I IC For Asphalt & Bldg. & Driveways lr�c�hs�Pr, WoU�,- 105—year S-to'n-n C For Grass W. -Tc�rs- Total Area of Drainage 1 84 1 Acres Area of Bldg., Drives, & Asphalt F 0.00 (Acres !Area of Grass --T-84—lAcres -I-Su-mm-atio-n-of-C I Total Area d-ZI 620 0=1 2.8 JCFSCFS Post Development I Total CH= 38 71CFS !Therefore; Post bevelopwent Flow is Less Than Pre-existing Conditions 7.5 0.2 7.5 09 0.2 Use Detention Pond as Sediment Basin During Construction: I Denuded Area: jRunoHPeak:' Determine Tc, Time of Concentratio--n {Min.)_ I T Tc=l(((L-3)IH)"0.385)1128 IWhere: _IL, Hydralic Length, (FT) I. _IH, Hydraulic Fall-,(FT)�I-- I ?For Drainage Areas B,D,& E; - - — L=1�692.0 FT_ -- I H =1 5,3 FT IW I I I Ilnte_nsity_From Chart S15-1 i Tc =1 I =1_ 7.81Min. I— 5.02{Inches/Hourl_ - -- --i I2 Year Storm— i - _ 6.64 IncheslHourl_ 110 Year Storm _ — IUse Rational Method: ! - -- •— I ---I— j _ _I — iQ = CIA I (Determine Sediment Storage Volume (Volume = 1800 cubic feelldisturbed acre --18007cf 5.9lac-- I cf i (Determine Peak Flow Method IRational Q=CIA�I— jWeighted0,291C1' Rainfalllnterisit =I 6,841inlhrArea =1 5.91ac Determine Surface Area - -- AF.01 Qpeak I-- =1 0.11703241acres l = 5097.9sgft ISurface Area Provided: 9256ISF Determine Basin -_ -I iI— _Dimensions IArea_2Wsquared - _—L -- ----+-- — I-- -- I - I- 50 ft_ - width I = 101 ft Length IDetermineDe_pth -- I - _I_— j —1 I Depth=VISA I =L _2.08Ift_ -I —I — - — I---- I- --- - Ainimum depth 1.5 to 2 Round up to =T 2.1 -�---- (Spillway Capacity i I J. (Weir Equation: Q=CLHAt.5 IC= 2.5 for stone s_pillw_ay, IL= Weir length- IH-= depth of flow Limit max to.5ft (Basin Dimensions Width = 50 ft Basin Design Calculations, Dimensions exceed requirements. Length = 101 _ _See ft After establishment of grass, basin must be excavated to design elevations and �- Depth = Weir length = 2.1 13.2 _ ft - _ ft grade for use as detention pond. State of North Carolina Department of Environment and Natural Resources Washington Regional Office Michael F. Easley, Govemor William G. Ross, Jr., Secretary DIVISION OF LAND RESOURCES LAND QUALITY SECTION January 31, 22006 LETTER OF APPROVAL Christian Voice Ministries, Inc. ATTN: Mr. Thaddeus E. Tankard, III, Pastor 6897 Slatestone Road Washington, North Carolina 27889 RE: Erosion and Sedimentation Control Plan No. Beauf-2006-012 Harvest Church SR 1403 (W. 15`h St.) - Beaufort County River Basin: Tar -Pamlico Date Received: January 10, 2006 Responsible Parry: Christian Voice Ministries, Inc. Dear Sir: This office has completed its review of the erosion and sedimentation control plan for the referenced 9.9 acre disturbance. Based on the information provided, we have determined the submitted plan for the grading associated with the construction of a stormwater pond, parking area, building, access road and landscape berms, if properly implemented and responsibly maintained, should meet the intent and minimum requirements of the Act. We, therefore, issue this LETTER OF APPROVAL. In 1973, the Sedimentation Pollution Control Act (copy available upon request) was enacted. It established a performance oriented program with the OBJECTIVE of PREVENTING SEDIMENT DAMAGE to adjoining properties and/or natural resources resulting from land disturbing activities through the use of reasonable and appropriate Best Land Management Practices, based on the approved plan and changing site conditions, during the course of the project. AS THE DECLARED RESPONSIBLE PARTY, YOUR LEGAL RESPONSIBILITY is to understand the Act and comply with the following minimum requirements of the Act and the above listed modifications (if any): -- an erosion and sedimentation control plan is only valid for 3 years following the date of initial approval, if no land -disturbing activity has been undertaken; 943 Washington Square lull, Washington, North Carolina 27889 Telephone 252-946-6481, FAX 252-975-3716 An Equal Opportunity Employee.- 54°%recyeled110% post -consumer paper Christian Voice Ministries, Inc. ATTN: Mr. Thaddeus E. Tankard, III, Pastor January 31, 2006 Page 2 -- the LATEST APPROVED soil erosion and sediment control plan will be used during inspection to determine compliance and a copy of the plan must be on file at the job site; -- erosion and sediment control measures or devices are to be installed to safely withstand the runoff resulting from a 10 year storm event - 6.5 - 7 inches in 24 hours or at the rate of 6.5 - 7 inches in 1 hour. -- unless the off -site borrow and/or disposal sites are identified in the erosion control plan, no earthen material is to be brought on or removed from the project site, -- except in the case of a storm related emergency, a revised erosion and sedimentation control plan must be submitted to and approved by this office prior to initiating any significant changes in the construction, grading or drainage plans; -- a buffer zone, sufficient to restrain visible sedimentation, must be provided and maintained between the land -disturbing activity and any adjacent property or watercourse; -- new or affected cut or filled slopes must be at an angle that can be retained by vegetative cover, AND must be provided with a ground coy r suff�ciertt to restrain erosion within 21 calendar days of completion of any phase (rough or final) of grading (RYE GRASS IS NOT in the APPRQV_ED seeding specifications SQR is it an ACCEPTABLE substitute for the providing of a temporary ground cover); -- the CERTIFICATE OF PLAN APPROVAL must be posted at the primary entrance to the job site and remain until the site is permanently stabilized, - unless a temporary, manufactured, lining material has been specified, a clean straw mulch must be applied, at the minimum rate of 2 tons/acre, to all seeded areas. The mulch must cover at least 75 % of the seeded area after it is either tacked, with an acceptable tacking material, or crimped in place; -- in order to comply with the intent of the Act, the scheduling of the land - disturbing activities is to be such that both the area of exposure and the time between the land disturbance and the providing of a ground cover is minimized; a aennanent_ground cover, sufficient restrain erosion, rust be provided within the shorter of 15 working or 90 calendar days after completion of Christian Voice Ministries, Inc. ATTN: Mr. Thaddeus E. Tankard, III, Pastor January 31, 2006 Page 3 construction or development on any portion of the tract (RYE GRASS IS LOT in the APPROseeding specifications LO—R- is it an ACCEPTABLE substitute for the providing of a nurse cover for the permanent grass cover); and, -- this approval is based, in part, on the accuracy of the information provided in the Financial Responsibility/Ownership form submitted with the project plans. You are required to file an amended form if there is any change in the information included on the form. This approval and the financial responsibility/liability cited in it does not automatically transfer with a change in project ownership. Be advised that to ensure compliance with the approved plan and the program requirements, unannounced periodic inspections will be made. If it is determined that the implemented plan is inadequate, this office may require the installation of additional measures and/or that the plan be revised to comply with state law. (Note: Revisions to the scope of this project without prior approval of the plan showing the changes can be considered a violation). Failure to comply with any part of the approved plan or with any requirements of this program could result in the taking of appropriate legal action (civil or criminal) against the financially responsible parry (Christian Voice Ministries, Inc.). Some options are Stop Work Orders and the assessing of a civil penalty of up to $5000 for the initial violation plus up to $5000 per day for each day the site is out of compliance. In recognizing the desirability of early coordination of sedimentation control, we believe it would be beneficial for you and your contractor to arrange a preconstruction conference to discuss the requirements of the approved erosion and sedimentation control plan. Prior to beginning this project, YOU ARE REQUIRED TO either CONTACT THIS OFFICE TO ADVISE Mr. - Patrick McClain (252-946-6481, ext. 3859) OF THE CONSTRUCTION START-UP DATE, contractor and on -site contact person OR complete and return the attached Project Information Sheet to the above named. Acceptance and approval of this plan is conditioned upon your compliance with Federal and State water quality laws, regulations and rules. In addition, the land disturbing activity described in this plan may also require approval or permitting from other agencies - Federal, State or local. These could include the U.S. Army Corps of Engineers under Article 4.0.4. jurisdiction, the Division of Water Quality - Surface Water Section under stormwater regulations (contact the Stormwater group at 252-946-6481), county, city or town agencies under other local ordinances, or other approvals that may be required. This approval does not supersedg any other approval or permit. Please be advised that a rule to protect and maintain existing buffers along watercourses in the Tar -Pamlico River Basin became effective on January 1, 2000. The Tar -Pamlico River Riparian Area Protection and Maintenance Rule (15A NCAC 213.0259) applies to a 50 (horizontal) foot wide zone along all perennial and intermittent streams, lakes, ponds and estuaries in the Tar- v Christian Voice Ministries, Inc. ATTN: Mr. Thaddeus E. Tankard, III, Pastor January 31, 2006 Page 4 Pamlico River basin with forest vegetation on the adjacent land or "riparian area". In riparian areas, the rule prohibits all land disturbance, new development and fertilizer use in the first 30 (horizontal) feet directly adjacent to the stream and/or coastal wetland vegetation. , With the exception of clearing, seeding and a one-time fertilizer use to establish the grass, the rule prohibits new development in the zone 20 feet landward of the first 30 feet of riparian area. For more information about the riparian area rule, please contact the Division of Water Quality's Wetland/401 Unit at 919-733-1786. Please be advised that all land -disturbing activities affecting 1 or more acres are required to have a (Federal) NPDES permit. Enclosed is the Construction Activities General NPDES Permit - NCG010000 for this project. The responsibility for understanding and complying with this permit rests with you, the financially responsible parry. Be aware that failure to comply with this permit could result in both the State and Federal governments taking appropriate legal action. Contact the Division of Water Quality.- Surface Water Section at (252) 946-6481 should you have any questions regarding monitoring and record keeping requirements of the permit. Sincere , G Patrick McClain, PE Regional Engineer :pm enclosures w/o enc. cc: H. C. Harris, Jr. PE, H. C. Harris, Jr. Engineering Alton Hodge, Division of Water Quality _. a A T$rFK34".$'�tr. Pastor Thaddeus E. Tankard, III Harvest Church 6897 Slatestone Road Washington, NC 27889 Dear Pastor Tankard: Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality March 21, 2006 Subject: Stormwater Permit No. SW7060108 Harvest Church High Density Project Beaufort County The Washington Regional Office received a complete Stormwater Management Permit Application for Grantham Place on March 2, 2006. 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: SW7060108 dated. March 21, 2006, for the construction of the subject project. This permit shall be effective from the date of issuance until March 21, 2016,. 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 1508 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 Amy Franklin, or myself at (252) 946-6481. i cerely, Al Hodge, Regional Supervisor Surface Water Protection Section Washington Regional Office AH/alf cc: LI. C. Harris, Jr, PE, PLS Beaufort County Building Inspections Washington Regional Office Central Files North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Internet ncwaterauali. -q 943 Washington Square ]mall, Washington, NC 27889 Customer Service 1-877-623-6748 No hCarolii An Equal Opportunity/Affirmative Action Employer— 54% Recyciedll0% Post Consumer Paper 7La1e 0LUIIl1WdLCI IVIdIIdIJGNIeIIt OyJlCllta Permit No. SW7060108.: Pond 1 a. Drainage Area, acres: 5.90 b. Total impervious Surfaces, fe: 83,635 C. Design Storm, inches: 1.0 d. Pond Depth, feet: 3,0 e. TSS removal efficiency: 85% f. Permanent Pool Elevation, FMSL: 7.00 g. Permanent Pool Surface Area, W: 9,256 h. Permitted Storage Volume, W: 8,863 i. Temporary Storage Elevation, FMSL: 7.88 j. Controlling Orifice: 1" 0 pipe k. Permitted Forebay Volume, ft3: 4,602 I. Receiving Stream/River Basin; UT Cherry Run M. Stream Index Number: 28-103-17 n. Classification of Water Body: " C: Sw: NSW" II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3.1 The permittee shall at ail 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 outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. Page 3of7 State stormwater management aysEems Permit No. SW7060108 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions.of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 7. If thestormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 8. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a: Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee; for which Sedimentation and Erosion Control Plan approval or a.CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 13. This permit shall be effective from the date of issuance until March 16, 2016. 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. Page 4 of 7 State Stormwater Management Systems Permit No. SW7060109 Ill. GENERAL CONDITIONS 1. This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form; documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be' approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject -the Permittee to enforcement action bythe Division of Water Quality, in accordance with North Carolina. General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated. by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division of any name, ownership or mailing address changes within 30 days. Permit issued this the 21" day of March, 2006. NORTH 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 7 State Stormwater Management Systems Permit No. SW7060108 Harvest Church Stormwater Permit No. SW7060108 Beaufort County Designer's Certification l , 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 State Stormwater Management 5ys.ems Permit No. SW7060108 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built - upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. �4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7.. Trash rack is provided on the outlet/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. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Beaufort County Building Inspections Page 7 of 7 Permit No. 5 I-V ? a 6 o / C$ 0o he provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORS,M-CERVED WET DETENTION BASIN SUPPLEMENT JAN - 9 2006 This forin may be photocopied for use as an original DWQ Stonnwater Management Plan Review: DWQ-WARO A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details. 1. PROJECT INFORMATION Project Name: 0AFLVESr C-4igrA Contact Person: 9.C. 94r.F_js, _K, Pe, Pi.S Phone Number: (ZSL ) 5ZI-S't-p-7 For projects with multiple basins, specify which basin this worksheet applies to: ^114 elevations Basin Bottom Elevation _ 4�, Qft. (floor of the basin) Permanent Pool Elevation 7. q ft. (elevation of the orifice) Temporary Pool Elevation Y. $S ft. (elevation of the discharge structure overflow) areas Permanent Pool Surface Area `� ZS[o sq. ft. (water surface area at the orifice elevation) Drainage Area S`.�O ac. (on -site and off -site drainage to the basin) Impervious Area _ _ .� Z ac. (on -site and off -site drainage to the basin) volumes Permanent Pool Volume I G, $ 54 _ cu. ft. (combined volume of main basin and foreha.);) Temporary Pool Volume g,8 3 cu. ft. (volume detained above the permanent pool) Forebay Volume d Z cu. ft. (approximately 20% of total volume) Other parcrrneters SAIDA I n. 33 (swface area to drainage area ralro_frorn DWQ table) Diameter of Orifice 1.0 in. (2 to 5 dcry temporary pool draw -down required) Design Rainfall l . c,'? in. Design TSS Removal ' $ S % (mininnrnt 85% required) Form SWU-102 Rev 399 Page t of 4 Footnotes: When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non- standard table entries. 2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide 90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal. 11. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. Applicants Initials a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). b. The forebay volume is approximately equal to 20% of the basin volume. c. The temporary pool controls runoff from the design storm event. d. The temporary pool draws down in 2 to 5 days. e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations) f. The basin length to width ratio is greater than 3:1. g. The basin side slopes above the permanent pool are no steeper than 3:1. h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail). i. Vegetative cover above the permanent pool elevation is specified. J. A trash rack or similar device is provided for both the overflow and orifice. k. A recorded drainage easement is provided for each basin including access to nearest right- of-way. �%e'esl /3 PRaV IAcD R44do(1^14- 44&r4 . I. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. in. A mechanism is specified which will drain the basin for maintenance or an emergency. �slE ro C—oTo. ,vv / III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one) Vda es This system (check one) Ves 0 does not incorporate a vegetated filter at the outlet. 0 does not incorporate pretreatment other than a forebay. Form SWU-102 Rev 3.99 Page 2 of 4 Maintenance activities shall be performed as follows: After every significant runoff producing rainfall event and at least monthly: a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. 2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning,, 4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling; near a wet detention basin or stream, etc.). The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads .75� feet in the main pond, the sediment shall be removed. When the penranent pool depth reads y15' feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Q Permanent Pool Elevation . D Sediment Ren oval El. �}.75 75` o ----- --------- -- - -Sediment Removal Elevation �} •�5 75/� Bottom Ele anon �{. D % -------------------------------125% ------ Bottom Elevation { , o / FOREBAV MAIN POND 5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These plants shall be encouraged to grow along the vegetated shelf and forebay berm. 6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. Form SWU-102 Rev 3.99 Page 3 of 7. All components of the wet detention basin system shall be maintained in good working order. I acknowledge and agree by tmy signature below that I am responsible for the performance of the seven 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: njA Dr> F d S 57. Title: R457-0X- Address: �P 89 5L rF-sro E R 1�/ .s �,v �! A/C XISS2 Phone: - 311 /O Signature: ,detp _ Date: 1 z - 20 -- v �r 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, C/-/f` 14'eleIS , a Notary Public for the State of C • , County of _ p1_7- 7-- _ , do hereby certify that ZVA D—z)C- --LZ7-- personally appeared before me this XoO day of D.-c.cnee-4 zoo! , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, F F V4��Q`u4 /0 0 - p��i••-kr/tierl'�• -'V My commission expires /Z�Zo - oS L /Z-QS-09 Form SWU-102 Rev 3.99 page 4 of 4