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HomeMy WebLinkAbout20060381 Ver 1_COMPLETE FILE_20060307 (2)Michael F. Easley, Governor pG I? ^C William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality May 1, 2006 DWQ Project # 06-0381 Johnston County Lyndale Developers, LLC ,4509 Creedmoor Road, Suite 202 Raleigh, NC 27612 Subject Property: Lyndale Subdivision Ut to Neuse River [030402, 27-(38.5), WSIV, NSW] Approval of 401 Water Quality Certification and Authorization Certificate per the Neuse River Buffer Protection Rules (15A NCAC 2B .0233) with Additional Conditions Dear Sir or Madam: You have our approval, in accordance with the attached conditions and those listed below, to place fill within or otherwise impact 0.016 acres of wetland, 246 linear feet of perennial stream (202 linear feet permanent impacts, 44 linear feet temporary impacts), and 20,875 square feet (ft) of protected Zone I Neuse River basin riparian buffer and 11,520 square feet (ft) of protected Zone 2 Neuse River basin riparian buffer for the purpose of constructing the proposed residential subdivision at the subject property, as described within your application dated March 7, 2006, and received by the N.C. Division of Water Quality (DWQ) on March 7, 2006. After reviewing your application, we have decided that the impacts are covered by General Water Quality Certification Number(s) 3374 and 3402 (GC3314 and GC3402). The Certification(s) allows you to use Nationwide Permit(s) NW 12 and NW39, respectively, when issued by the US Army Corps of Engineers (USACE). This letter shall also act as your approved Authorization Certificate for impacts to the protected riparian buffers per 15A NCAC 2B .0233. In addition, you should obtain or otherwise comply with any other required federal, state or local permits before you go ahead with your project including (but not limited to) Erosion and Sediment Control, and Non-discharge regulations. Also, this approval to proceed with your proposed impacts or to conduct impacts to waters as depicted in your application shall expire upon expiration of the 404 or CAMA Permit. This approval is for the purpose and design that you described in your application. If you change your project, you must notify us and you may be required to send us a new application. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total fills for this project (now or in the future) exceed one acre of wetland or 150 linear feet of stream, compensatory mitigation may be required as described in 15A NCAC 214.0506 (h). This approval requires you to follow the conditions listed in the attached certification and any additional conditions listed below. The Additional Conditions of the Certification are: 1. Impacts Approved The following impacts are hereby approved as long as all of the other specific and general conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are approved including incidental impacts: ApthCaropna 401 Oversight/Express Review Permitting Unit lltlllYl ?l? 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-1786 / FAX 919-733-6893 / Internet: http://h2o.enr.state.nc.us/ncwetlands An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper Lyndale Subdivision Page 2 of 5 May 1, 2006 Amount Approved (Units) Plan Location or Reference 404/Wetland 0.016 (acres) PCN page 4 of 9 Stream - perennial 246 (linear feet -202 linear feet permanent impacts, 44 linear feet temporary impacts) PCN page 4 of 9 Buffer - Zone 1 20,875 (square ft. PCN page 7 of 9 Buffer -Zone 2 11,520 (square ft. PCN page 7 of 9 2. No Waste, Spoil, Solids, or Fill of Any Kind No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the footprint of the impacts depicted in the Pre-Construction Notification. All construction activities, including the design, installation, operation, and maintenance of sediment and erosion control Best Management Practices, shall be performed so that no violations of state water quality standards, statutes, or rules occur. 3. Erosion and sediment control practices must be in full compliance with all specifications governing the proper design, installation and operation and maintenance of such Best Management Practices in order to protect surface waters standards: a. The erosion and sediment control measures for the project must be designed, installed, operated, and maintained in accordance with the most recent version of the North Carolina Sediment and Erosion Control Planning and Design Manual. b. The design, installation, operation, and maintenance of the sediment and erosion control measures must be such that they equal, or exceed, the requirements specified in the most recent version of the North Carolina Sediment and Erosion Control Manual. The devices shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects, including contractor-owned or leased borrow pits associated with the project. C. Sufficient materials required for stabilization and/or repair of erosion control measures and stormwater routing and treatment shall be on site at all times. 4. Sediment and Erosion Control Measures Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum extent practicable. If placement of sediment and erosion control devices in wetlands and waters is unavoidable, they shall be removed and the natural grade restored within six months of the date that the Division of Land Resources has released the project; 5. Protective Fencing The outside buffer, wetland or water boundary and along the construction corridor within these boundaries approved under this authorization shall be clearly marked with orange warning fencing (or similar high visibility material) for the areas that have been approved to infringe within the buffer, wetland or water prior to any land disturbing activities to ensure compliance with 15A NCAC 2B.0233 and GC 3404; 6. Diffuse Flow (No Review) All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at non-erosive velocities through the protected stream buffers such that it will not re-concentrate before discharging into a stream as identified within 15A NCAC 2B .0233 (5). If this is not Lyndale Subdivision Page 3 of 5 May 1, 2006 possible, it may be necessary to provide stormwater facilities that are considered to remove nitrogen. This may require additional approval from this Office. 7. Culvert Installation Culverts required for this project shall be installed in such a manner that the original stream profiles are not altered. Existing stream dimensions (including the cross section dimensions, pattern, and longitudinal profile) must be maintained above and below locations of each culvert. Culverts shall be designed and installed to allow for aquatic life movement as well as to prevent head cutting of the streams. If any of the existing pipes are or become perched, the appropriate stream grade shall be re-established or, if the pipes installed in a perched manner, the pipes shall be removed and re- installed correctly. Culvert(s) shall not be installed in such a manner that will cause aggradation or erosion of the stream up or down stream of the culvert(s). Existing stream.dimensions (including the cross section dimensions, pattern and longitudinal profile) shall be maintained above and below locations of each culvert. Placement of culverts and other structures in waters, streams, and wetlands must be placed below the elevation of the streambed by one foot for all culverts with a diameter greater than 48 inches, and 20 percent of the culvert diameter for culverts having a diameter less than 48 inches, to allow low flow passage of water and aquatic life. Design and placement of culverts and other structures including temporary erosion control measures shall not be conducted in a manner that may result in dis-equilibrium of wetlands or streambeds or banks, adjacent to or upstream and down stream of the above structures. The applicant is required to provide evidence that the equilibrium shall be maintained if requested in writing by DWQ. The establishment of native, woody vegetation and other soft stream bank stabilization techniques must be used where practicable instead of rip rap or other bank hardening methods. If rip-rap is necessary, it shall not be placed in the stream bed, unless specifically approved by the Division of Water Quality. Installation of culverts in wetlands must ensure continuity of water movement and be designed to adequately accommodate high water or flood conditions. Upon completion of the project, the Applicant shall complete and return the enclosed "Certificate of Completion" form to notify NCDWQ when all work included in the §401 Certification has been completed. The responsible party shall complete the attached form and return it to the 401/Wetlands Unit of the NC Division of Water Quality upon completion of the project. Please send photographs upstream and downstream of each culvert site to document correct installation along with the Certificate of Completion form. 8. Deed Notifications Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in place prior to impacting any wetlands, waters and/or buffers approved for impact under this Certification Approval and Authorization Certificate. A sample deed notification can be downloaded from the 401 /Wetlands Unit web site at http://h2o.enr.state.nc.us/ncwetlands. The text of the sample deed notification may be modified as appropriate to suit to this project; Lyndale Subdivision Page 4 of 5 May 1, 2006 Mitigation: 9. Compensatory Mitigation Using the Ecosystem Enhancement Program (EEP) Mitigation must be provided for the proposed impacts as specified in the table below. We understand that you wish to make a payment to the Wetlands Restoration Fund administered by the NC Ecosystem Enhancement Program (EEP) to meet this mitigation requirement. This has been determined by the DWQ to be a suitable method to meet the mitigation requirement. Until the EEP receives and clears your check (made payable to: DENR - Ecosystem Enhancement Program Office), no impacts specified in this Authorization Certificate shall occur:; The EEP should be contacted at (919) 733-5205 if you have any questions concerning payment into a restoration fund. You have one month from the date of this approval to make this payment. For accounting purposes, this Authorization Certificate authorizes payment into the Wetlands Restoration Fund to meet the following compensatory mitigation requirement: Compensatory Mitigation Required minimum River and Sub-basin Number Stream - perennial 202 (linear feet Neuse/03020101 10. Review of Signed and Notarized Written Operation & Maintenance (O&M) Agreement An Operation & Maintenance (O&M) agreement signed by the current landowner and notarized by a Notary Public, must be approved by the DWQ before the impacts approved in this Certification may occur. This O&M agreement must transfer with the sale of the land or transfer of responsibility for the stormwater facilities and the DWQ must be notified of every transfer. 11. Construction Stormwater Permit NCGO 10000 Upon the approval of an Erosion and Sedimentation Control Plan issued by the Division of Land Resources (DLR) or a DLR delegated local erosion and sedimentation control program, an NPDES General stormwater permit (NCGO10000) administered by DWQ is automatically issued to the project. This General Permit allows stormwater to be discharged during land disturbing construction activities as stipulated by conditions in the permit. If your project is covered by this permit. [applicable to construction projects that disturb one (1) or more acres], full compliance with permit conditions including the sedimentation control plan, self-monitoring, record keeping and reporting requirements are required. A copy of this permit and monitoring report forms may be found at htW.-Ilh2o.enr.state.nc.us/su/Forms Documents htm.; 12. Certificate of Completion Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules, and any subsequent modifications, the applicant is required to return the attached certificate of completion to the 401 Oversight/Express Review Permitting Unit, North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650. Violations of any condition herein set forth may result in revocation of this Certification and may result in criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct impacts to waters as depicted in your application and as authorized by this Certification, shall expire upon expiration of the 404 or CAMA Permit. Lyndale Subdivision Page 5 of 5 May 1, 2006 If you do not accept any of the conditions of this Certification (associated with the approved wetland or stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a hearing. Any disputes over determinations regarding this Authorization Certificate (associated with the approved buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is subject to review as provided in Articles 3 and 4 of G.S. 150B. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act and the Neuse riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have any questions, please telephone Cyndi Karoly or Ian McMillan at 919-733-1786. Sincerely. Alan W. Klimek, P.E. AWK/ijm Enclosures: GC 3402 NCDWQ - NCEEP Mitigation Summary of Permitted Impacts and Mitigation Requirements Certificate of Completion cc: Eric Kulz, DWQ Raleigh Regional Office USACE Raleigh. Regulatory Field Office File Copy Central Files Aaron Cooper, Soil & Environmental Consultants, P.A., 11010 Raven Ridge Road, Raleigh, NC 27614 Filename: 0603 81 LyndaleSD(Johnston)101_NBR C? W ATF, ry 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 North Carolina Division of Water Quality 401 Water Quality Certification Summary of Permitted Impacts and Mitigation Requirements In accordance with 15A NCAC 2H.0500, Lyndale Developers, LLC, has permission as outlined below to impact 0.016 acres of wetland, 246 linear feet of perennial stream (202 linear feet permanent impacts, 44 linear feet temporary impacts), and 20,875 square feet (ft) of protected Zone 1 Neuse River basin riparian buffer and 11,520 square feet (ft) of protected Zone 2 Neuse River basin riparian buffer for the purpose of constructing the proposed residential subdivision on the south side of Glen Laurel Road, near the interchange with NC Highway 42, in Clayton, Johnston County. All activities associated with these authorized impacts must be conducted with the conditions listed in the attached Permit transmittal letter. THIS PERMIT IS NOT VALID WITHOUT THE ATTACHMENTS. COMPENSATORY MITIGATION REQUIREMENTS, ECOSYSTEM ENHANCEMENT PROGRAM LOCATION: Clayton, NC COUNTY Johnston BASIN/ SUB BASIN Neuse/03020101 As required by 15A NCAC 2H.0500, and the conditions of this Permit, you are required to compensate for the above impacts through the restoration, creation, enhancement or preservation of wetlands and surface waters as outlined below prior to conducting any activities that impact or degrade the waters of the state. Note: Acreage requirements proposed to be mitigated through the Ecosystem Enhancement Program must be rounded to one-quarter acre increments and linear foot requirements must be rounded up to the nearest foot according to 15 2R.0503(b). Impacts Mitigation 202 linear feet of stream 202 linear feet of stream In correspondence dated April 5, 2006, the EEP indicated that up to 202 linear feet of mitigation will be conducted by EEP if necessary for the 401 Water Quality Certification and 404 Permit. One of the options you have available to satisfy the compensatory mitigation requirement is through the payment of a fee to the Wetlands Restoration Fund per NCAC 2R.0503. If you choose this option, please sign this form and mail the form along with a copy of your 401 Certification or Buffer Approval to the Ecosystem Enhancement Program at the address below. An invoice for the appropriate amount of payment will be sent to you upon receipt of this form. PLEASE NOTE, THE ABOVE IMPACTS ARE NOT AUTHORIZED UNTIL YOU RECEIVE NOTIFICATION THAT YOUR PAYMENT HAS BEEN PROCESSED BY THE ECOSYTEM ENHANCMENT PROGRAM. Signature Date ECOSYSTEM ENHANCEMENT PROGRAM 1652 Mail Service Center RALEIGH, N.C. 27699-1652 (919) 733-5205 Filename: 060381 LyndaleSD(Johnston)t01_NBR_EEP 4010versight/Express Review Permits Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 s Phone: 919-733-1786 / FAX 919-733-6893 / Internet: http7//h2o.enr.state.nc.us/ncwetland NW Carolina tarallrff AM IS F 11, F- C 0 P Y Soil & Environmental Consultants, PA 11010 Raven Ridge Road Raleigh, North Carolina 27614 • Phone: (919) 846-5900 • Fax: (919) 846-9467 www.SandEC.com April 11, 2005 S&EC Project #8936.W4 DWQ Project #06-0381 Department of Environment and Natural Resources Division of Water Quality Attn: Cyndi Karoly 2321 Crabtree Boulevard Suite 250 Raleigh, NC 27604 Re: Reply to the Division of Water Quality's Request for More Information. Lyndale Subdivision Clayton, Wake County, NC Dear Ms. Karoly: The purpose of this letter is to respond to your "Request For More Information" letter requesting further information. The original questions/requests are copied below as they appear on the March 20, 2006 letter and are then followed by our response to each. Additional Information Requested: 1. Please provide documentation from the NCEEP indicating their willingness to accept your request to purchase stream mitigation credit to mitigate for the proposed perennial stream impacts listed in your PCN application per section VIII, No. 1. Attached is the North Carolina Ecosystem Enhancement Programs acceptance letter for 202 linear feet of stream mitigation dated April 2, 2006. We anticipate that this answers all of the DWQ's questions in order to complete the final review process for -a 401 Water Quality Certification. If you have any further questions or any additional explanation is needed, please don't hesitate to call. Sincerely,. o 9,6 p APR 1 l 2006 Debbie Edwards Environmental Specialist DENK - WATER DUALITY WETLANDS AND STORMWATER BRANCH CC: Monte Mathews-USACE Raleigh Regulatory Field Office, 6508 Falls of the Neuse Rd., Suite 120, Raleigh, NC 27615 David Smith, PE-Rivers & Associates, 8410 Falls of the Neuse Rd., Raleigh, NC 27615 Attachments: 1) North Carolina Ecosystem Enhancement Program Acceptance Letter (dated April 5, 2006) Charlotte Office: Greensboro Office 236 LePhillip Court, Suite C 3817-E Lawndalebrive Concord, NC 28025 Greensboro, NC 27455 Phone: (704) 720-9405 Phone: (336) 540-8234 Fax: (704) 720-9406 Fax: (336) 540-8235 Ecosystem PROGRAM April 5, 2006 Aaron Cooper S&EC 11010 Raven Ridge Road Raleigh, NC 27614 Project: Lyndale Subdivision County: Wake The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NC EEP) is willing to accept payment for impacts associated with the above referenced project. Please note that this decision does not assure that the payment will be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact these agencies to determine if payment to the NC EEP will be approved. This acceptance is valid for six months from the date of this letter. If we have not received a copy of the issued 404 Permit/401 Certification within this time frame, this acceptance will expire. It is the applicant's responsibility to send copies of the 404/401/CAMA permits to NC EEP. Once NC EEP receives a copy of the 404 Permit and/or the 401 Certification an invoice will be issued and payment must be made. Based on the information supplied by you the impacts that may require compensatory mitigation are summarized in the following table. River Basin Wetlands Stream Buffer Buffer Cataloging (Acres) (Linear Feet) Zone 1 Zone 2 Unit (Sq. Ft.) (Sq. Ft.) Riparian Non-Riparian Coastal Marsh Cold Cool Warm Neuse 0 0 0 0 0 202 0 0 03020101 Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation for the permitted impacts up to a 2:1 ratio, (buffers, Zone 1 at a 3:1 ratio and Zone 2 at a 1.5:1 ratio). The type and amount of the compensatory mitigation will be as specified in the Section 404 Permit and/or 401 Water Quality Certification, and/or CAMA Permit. The mitigation will be performed in accordance with the Memorandum of Understanding between the N. C. Department of Environment and Natural Resources and the U. S. Army Corps of Engineers dated November 4, 1998. If you have any questions or need additional information, please contact David Robinson at (919) 715-5835. Sincerely, JR . <Z? (N if 1Cp"141 r.iamD Gilmore, PE Director cc: Cyndi Karoly, Wetlands/401 Unit Monte Matthews, USACE-Raleigh Eric Kulz, DWQ-Raleigh File 1Zestorai?l... E ... Prot-" O"? State G NCDENR North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 91 9-71 5-0476 / www.nceep.net ?OV vv ? 14 9p Michael F. Easley, Governor William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources © Alan W. Klimek, P.E. Director Division of Water Quality March 20, 2006 DWQ Project # 06-0381 Johnston County CERTIFIED MAIL: RETURN RECEIPT REQUESTED Lyndale Developers, LLC 4509 Creedmoor Road, Suite 202 Raleigh, NC 27612 Subject Property: Lyndale Subdivision Ut to Neuse River [030402, 27-(38.5), WSIV, NSW] REQUEST FOR MORE INFORMATION Dear Sir or Madam: On March 7, 2006, the Division of Water Quality (DWQ) received your application dated March 7, 2006, to impact 0.016 acres of wetland, 246 linear feet of perennial stream (202 linear feet permanent impacts, 44 linear feet temporary impacts), and 32,395 square feet of protected riparian buffer to construct the proposed residential subdivision. The DWQ has determined that your application was incomplete and/or provided inaccurate information as discussed below. The DWQ will require additional information in order to process your application to impact protected wetlands and/or streams on the subject property. Therefore, unless we receive five copies of the additional information requested below, we will have to move toward denial of your application as required by 15A NCAC 2H .0506 and will place this project on hold as incomplete until we receive this additional information. Please provide the following information so that we may continue to review your project. Additional Information Requested: Please provide documentation from the NCEEP indicating their willingness to accept your request to purchase stream mitigation credit to mitigate for the proposed perennial stream impacts listed in your PCN application per section VIII, No. 1. Please contact the DWQ within three weeks of the date of this letter to verify that you have received this letter and that you remain interested in continuing to pursue permitting of your project and will be providing the DWQ the requested information at a later date. Please contact me in writing and Eric Kulz of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks, we will assume that you no longer want to pursue this project and we will consider the project as withdrawn. This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected buffers. Please be aware that any impacts requested within your application are not authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733- 1786 if you have any questions regarding or would like to set up a meeting to discuss this matter. 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone (919) 733-1786 / Fax (919) 733-6893 Internet: http://www.ncwaterquality.org An Equal Opportunity/Affirmative Action Employer - 50% Recycled/ 10% Post Consumer Paper One N Carolina AM191iy 'A)? Lyndale Developers, LLq Page 2 of 2 March 20, 2006 S' erely, NUJ Cyndi Karoly, Supervisor 401 Oversight/Express Review Permitting Unit CBKlijm cc: Eric Kulz, DWQ Raleigh Regional Office USACE Raleigh Regulatory Field Office File Copy Central Files Aaron Cooper, Soil & Environmental Consultants, P.A., 11010 Raven Ridge Road, Raleigh, NC 27614 Filename: 060381LyndaleSD(Johnston)On_Hold DWQ # 06-0381 Lyndale SD Subject: DWQ # 06-0381 Lyndale SD From: Laurie Dennison <laurieJ.dennison@ncmail.net> Date: Tue, 21 Mar 2006 07:22:16 -0500 To: acooper@sandec.com Please see attached the Division of Water Quality's request for more information related to your recent application. Please note that this message is being forwarded to you electronically so that you may expedite preparation of your response. Please do not send your response as a reply to this e-mail or via fax. The hard copy is being sent via US Mail. All response correspondence is to be mailed via hard copy to the 401 Oversight and Express Permits Unit, 2321 Crabtree Blvd., Raleigh, NC, 27604 unless otherwise noted. Content-Type: application/msword j 060381LyndaleSD(Johnston)On_Hold.doc Content-Encoding: base64 ---------- - ------- - I of 1 3/21/2006 7:23 AM Soil & Environmenta; 11010 Raven Ridge Road • Raleigh, North Carolina 2761( N(- a?i(fl We Transmit to you Herewith: ants, PA a; Fax: (919) 846-9467 Project Name: L?IYlC?0.?e Sc.?hrliV?SI?? File: Q Drawings ? For your'information and files ? Specifications B For comment or approval ? Brochures or photos ? Returned for correction, resubmit Correspondence ? Approved as noted ? As per your request Under Separate Cover: ? By mail a. By courier ? • By express No. Copies Document No. Date Description 5 306 Remarks: If enclosures. are not as listed as above, kindly notify us at once. By. Charlotte Office: Greensboro Office: 236 LePhillip Court, Suite C 3817-E Lawndale Drive Concord, NC 28025 Greensboro, NC 27455 Phone: (704) 720-9405 Phone:; (336) 540-8234 Fax: (704) 720-9406 Fax:. (336) 540-8235 2 0 0 6 0 3 8 1 Transmittal ?IEOE!NR ANA Ai'ER To: ??(? Project #: S 3tp. W Date: 51-1 D(C) L Soil & Environmental Consultants, PA 11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: (919) 846-5900 • Fax: (919) 846-9467 www.SandEC.com March 7, 2006 S&EC Project # 8936.W4 To: US Army Corps of Engineers Raleigh Regulatory Field Office Attn: Jamie Shern 6508 Falls of the Neuse Rd Suite 120 Raleigh, N.C. 27615 From: Aaron. Cooper Soil & Environmental Consultants, P.A. - 11010 Raven Ridge Road Raleigh, NC 27614 NC Division of Water Quality 401 Oversight and Express Permits Unit Attn: Cyndi Karoly 2321 Crabtree Boulevard, Suite 250 Raleigh, NC 27604-2260 t7_7 71,17 rR 1;1 MAR 7 Re: Lyndale Subdivision ® g - f Y Clayton, Johnston County, NC WETLANDS AND STORMWATER BRANCH On behalf of the owners, Lyndale Developers, LLC, please find attached a complete application and supplemental information requesting written concurrence from the U.S. Army Corps of Engineers (USACE) and the North Carolina Division of Water Quality (NC-DWQ) that the activities proposed below may precede utilizing Nationwide Permit 39 and 12. In addition, written authorization from the NC-DWQ is requested for activities proposed to impact Neuse River Buffers. Please contact me at (919) 846-5900 if you have any questions or require additional information. PROJECT SUMMARY Project Name L dale Subdivision Project Type Residential Subdivision Owner / Applicant L dale Developers, LLC County Johnston Nearest Town Clayton Waterbod Name UT to Neuse River Basin / Sub-basin 03-04-02 Index Number 27-(38.5) Class WS-IV; NSW IMPACT Cl TMM A R V Stream Impact (acres): 0.043 Wetland Impact (acres): 0.016 Open Water''Impact (acres): 0 Total Impact to Waters of the U.S. (acres) Total Stream Impact (linear feet): f g?? Attachments: Pre-construction Notification (PCN) Application Form Agent Authorization USGS Vicinity Map Johnston County Soil Survey Detailed Impact Maps Cross-Sectional Profile Overall Drainage Plan (Erosion Control Plan) Detailed Level Spreader Designs Level Spreader worksheets Operations & Maintenance Agreement (signed and sealed) DWQ Buffer Letter (dated April 4, 2005) $475 Water Certification Fee Charlotte Office: 236 LePhillip Court, Suite C Concord, NC 28025 Phone: (704) 720-9405 Fax: (704) 720-9406 Greensboro Office: 3817-E Lawndale Drive Greensboro, NC 27455 Phone: (336) 540-8234 Fax: (336) 540-8235 L_? MAR 7 ?066 r DENR - vvA c: iu+i?!'i Y WU ANWAND STORMWATER BRANCH Office Use Only: o v si arch os USACE Action ID No. DWQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ® Section 404 Permit ® Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: NWP 39 and NWP 12 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: Lvndale Developers, LLC Mailing Address: 4509 Creedmoor Road, Suite 202 Raleigh, NC 27612 Telephone Number: 919-838-8484 Fax Number: N/A E-mail Address: N/A 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Aaron Cooper Company Affiliation: Soil & Environmental Consultants Mailing Address: 11010 Raven Ridge Road Raleigh, N.C. 27614 Telephone Number: 919-846-5900 Fax Number: 919-846-9467 E-mail Address: acooper e,sandec.com Page 1 of 9 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: Lyndale Subdivision 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): 1678-66-2762,1678-55-8829,1678-55-5242 4. Location County: Johnston Nearest Town: Clayton Subdivision name (include phase/lot number): Lyndale Subdivision Directions to site (include road numbers/names, landmarks, etc.): The property is located on the south side of Glen Laurel Road (SR 1902), approximately 6000 feet from the intersection with NC 42 in Clanton, North Carolina. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35.6334 ON -78.4095 °W 6. Property size (acres): +/- 70 acres 7. Name of nearest receiving body of water: UT to Neuse River: 27-(38.5): WS-IV: NSW 8. River Basin: Neuse (03-04-02) (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at hiip://h2o.enr.state.nc.us/admin/mUs/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The site is currently forested. The general land use surrounding the property is a mixture of residential and agricultural. Page 2 of 9 10. Describe the overall project in detail, including the type of equipment to be used: The proposed project consists of the construction of a residential subdivision utilizing typical utilities i.e. sewer, water). Typical construction and grading equipment will be utilized for this project. 11. Explain the purpose of the proposed work: The purpose of the proposed project is to develop a residential subdivision to meet the demand for housing in the area. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. S&EC performed a detailed wetland delineation and Neuse River buffer evaluation on the site in January of 2005. The northern parcel jurisdictional determination was verified by Kevin Yates, formerly of the USACE on May 27, 2005 and the two southern parcels jurisdictional determinations were verified on September 20, 2005 by Jean Manuele. Mr. Mike Horan of the NC-DWQ verified the Neuse Buffers on the site on February 18, 2005 (NBRRO# 05-0049). V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. No future permit requests are anticipated for this project at this time. VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Page 3 of 9 1. Provide a written description of the proposed impacts: Proposed permanent impacts include 0.008 acres of wetlands and 202 linear feet of perennial stream channel Temporary impacts include 0.008 acres of wetlands and 44 linear feet of stream channel 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. Wetland Impact Type of Wetland Located within Distance to Area of Site Number Type of Impact (e.g., forested, marsh, 100-year Nearest Impact (indicate on map) herbaceous, bog, etc.) Floodplain Stream (acres) es/no linear feet #2 (NWP 39) Road Fill Forested/Linear Wetland no 20' 0.008 #4 (NWP 12) Temporary-sanitary Forested no 225' 0.008 sewer Total Wetland Impact (acres) 0.016 3. List the total acreage (estimated) of all existing wetlands on the property: +/-2.50 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage, multiply length X width, then divide by 43,560. Stream Impact Perennial or Average Impact Area of Number Stream Name Type of Impact Stream Width Length Impact indicate on ma Intermittent? Before Impact linear feet acres #3 (NWP 39) UT to Neuse Culvert & Dissipater Perennial 7> 202 0.031 #5 (NWP 12) UT to Neuse Temporary- Perennial 5' 23 0.003 sanitary sewer #6 (NWP 12) UT to Neuse Temporary- sanitary sewer Perennial +/-19' 21 0.009 Total Stream Impact (by length and acreage) 246 0.043 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Name of Waterbody Type of Waterbody Area of Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact indicate on ma ocean, etc. acres N/A N/A N/A N/A 0 Total Open Water Impact (acres) 0 Page 4 of 9 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): 0.043 Wetland Impact (acres): 0.016 Open Water Impact acres : 0 Total Impact to Waters of the U.S. (acres) 0.059 Total Stream Impact (linear feet): 246 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ® No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. N/A 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): N/A Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): N/A Current land use in the vicinity of the pond: N/A Size of watershed draining to pond: N/A Expected pond surface area: N/A VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were.not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. The client reauested a detailed wetland delineation prior to site elan development in order to avoid jurisdictional areas and design accordingly. Impact #1 is necessary, it is being required to tie into Brickdale Drive across Glen Laurel Road as per DOT standards: the applicant is proposing an arched culvert to avoid stream channel impacts. In addition, impact #3 is necessary to access the larger, southern portion of the property. The applicant has avoided a significant amount of wetlands onsite and has designed around the natural resources on this site to the maximum extent practical. Page 5 of 9 VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/stnnizide.html. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. Applicant will utilize the Ecosystem Enhancement Program for all required mitigation. 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at hilp://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): 202 Amount of buffer mitigation requested (square feet): 0 Amount of Riparian wetland mitigation requested (acres): 0 Amount of Non-riparian wetland mitigation requested (acres): 0 Page 6 of 9 Amount of Coastal wetland mitigation requested (acres): 0 IX. Environmental Documentation (required by DWQ) Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ? . No 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No ? 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify Neuse ? Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. m pact #1 (Road Crossing) Zone* (square feet) Multiplier Required Mitigation 1 8,167 3 (2 for Catawba) N/A 2 5,159 1.5 N/A Total 13,326 N/A Impact #3 (Road Crossing) Zone* (square feet) Multiplier Required Mitigation 1 9,465 3 (2 for Catawba) N/A 2 4,672 1.5 N/A Total 14,137 N/A Page 7 of 9 Impact #5 (Sanitary Sewer) Zone* (square feet) Multiplier Required Mitigation 1 1,420 3 (2 for Catawba) N/A 2 841 1.5 N/A Total 2,261 N/A Impact #6 (Sanitary Sewer) Zone* (square feet) Multiplier Required Mitigation 1 1,823 3 (2 for Catawba) N/A 2 848 1.5 N/A Total 2,671 N/A * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. Riparian Buffer Mitigation should not be required for the impacts proposed. . XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. Proposed impervious surface area is less than 24%. Please see attached calculations on sheet 2 of 6. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. Part of the impacts requested are to connect to an existing sanitary sewer system, therefore a sanitary sewer system will be utilized for the proposed subdivision. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes E] No Is this an after-the-fact permit application? Yes ? No XIV. Cumulative Impacts (required by DWQ) Page 8 of 9 Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: We have reviewed the "DRAFT Internal Policy, Cumulative impacts and the 401 Water Quality Certification and Isolated Wetland Programs" document prepared by the NC Division of Water Quality on October 3, 2002, version 1.6. The draft states that most residential subdivisions are unlikely to cause cumulative impacts. Lyndale Subdivision does not meet any of the three criteria of private projects that can clearly result in cumulative impacts. We anticipate that you will advise us if a qualitative or quantitative impact analysis is required. XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). N/A Applicant/Agent's `Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 9 of 9 Nov-18-2005 11:15am From-RIVERS AND ASSOCIATES INC. Nov-1T-Z009 03:68pm From-RIVERS MO ASSOCIATES INC. 11010 Shwa li4p itead 9198480319 T-004 P.002/002 F-764 ..-. .- -- -'--•...I . ..-- - 1118490819 T-002 P-0011002 F-753 >RAWA MO 001188 =7814 • 00010119)9464M WWWAIedO( OM aft, PA Fran (919) 84"07 Narna: )Oft- I 4 a Mfg r f g" ? V Address; ?1 ?flq . car Z ILL Q C.I. III !EP 12r phone: 84$4 Pr+q?eat NundDesarlptiom: ,?+ar1?a?1e ,, .??I.tu?St?,ow) Ditto; Ttie DMW$n=t Of 90 MW W, Amy COrpa Of EnSiMM. Wdm*= >Dlevioc F.O. Bou lago wiltrJASMa, NC 28402 A,tm; q cv Fidel Ores lie: W'e WWO Reltted Coruultins and Pel tdoin To Wh6w It May Came'. Raw "cct # 1, tlm cormtt kg&ww or ml 0japal oftW, hereby and audwin pall & Envft*w ftW Ccoeultaats, PA, to mat ie my bolulf u my apeart in the preeeisinp of permit avuedim l?ieh won avpp 1 igfa =tjM in support of app1ia?tioru, eta, ftm thin by ibnvard. The day o! T14 aakifioAEWn supow des any previous oomopendwe awandal dm eprtt ibr this x4ect. NMC10: Thin avtheeibadory hr Ilabifliy ad profasia l oou l ay M80as? h VAN oaly hr mRat 6111wap to enter dw p t apar?ly who aaaampals6 by M= suit You ahosdd ead $AMC to arraapa a doe meeil; prior l0 vld:iny, two Vitt. Z ? .1)EyE1_0Mgg Z LI $ Frisk pmpartY Owntt's orM ! O>Eeoiel°i Name Co.- AU ?y NAAt R-D'WQ 2321 Cmbb" ¦ontetrm+d 3ta MA64 Nc 27404 ;rlo 'I W?i?''i lf?t O'1 Ri?ltsu+e cc: bor. Aataa Cooper foil dt Eavivasmawl Cowdunse, PA M 111ipGault, suite C ' C04401A IC 2 on CrowAoro. NC 27459 Maw (741) lYO NDS Phone (336) 340.1234 fish (7041720.9406 FAM (836) 540.8233 AGENT AMMORL'C AT O'N FORM OF W A TF Michael F. Easley, Governor 9 J William G. Ross Jr., Secretary ` QG cc, North Carolina Department of Environment and Natural Resources at r cc ((Alan W. Klimek, P.E. Director > .I Colleen H. Sullins, Deputy Director © Division of Water Quality April 4, 2005 (REVISED LETTER) Aaron Cooper S&EC 11010 Raven Ridge Road Raleigh, NC 27614 Attn: Mr. Cooper BASIN: Neuse River X (15A NCAC 2B .0233) Complaint NOV NBRRO#05-0049 County: Johnston Buffer Determination X Incident # Appeal Call Project Name: Havner Tract Location/Directions: off of Ridge Glen off of Glen Laurel SR 1902 Subject Stream: UT to the Neuse River Date of Determination: 2/18/05 Feature Start Buffer GPS Points (if provided) End Buffer Stream Form Appeal Call Located on Soil Survey Located on USGS Topographic A S01 (approx. 35deg 37min 49.12sec, 78deg 24min 30sec X B Not Contested X X C Not Contested X D Not Contested X X E Not Contested X X KKR Raleigh Regional Office 1628 Mail Service Center E=1 Water Quality Section Raleigh, NC 27699-1628 r j , -- ?, l ? I 1 1 ` LE'; •.J tom' \ J? ?l I ih APR 2 1 2X05 Tar-Pamlico (15A NCAC 2B .0259) phone (919) 571-4700 Customer *Service facsimile (919) 571-4718 1-877-623-6748 Havner Tract S&EC 4/4/2005 Page 2 of 2 This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected parties that dispute a determination made by the DWQ or Delegated Local Authority that a surface water exists and that it is subject to the buffer rule may request a determination by the Director. A request for a determination by the Director shall be referred to the Director in writing c% Cyndi Karoly, DWQ Wetlands1401 Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. Individuals that dispute a determination by the DWQ or Delegated Local Authority that "exempts" a surface water from the buffer rule may ask for an ad judicatory hearing. You must act within 60 days of the date that you receive this letter. Applicants are hereby notified that the 60-day statutory appeal time does not start until the affected party (including downstream and adjacent landowners) is notified of this decision. DWQ recommends that the applicant conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This determination is final and binding unless you ask for a hearing within 60 days. The (owner/future owners) should notify the Division of Water Quality (including any other Local, State, and Federal Agencies) of this decision concerning any future correspondences regarding the subject property (stated above). This project may require a Section 4041401 Permit for the proposed activity. Any inquiries should be directed to the Division of Water Quality (Central Office) at (919)-733-1786, and the US Army Corp of Engineers (Raleigh Regulatory Field Office) at (919)-876-8441. r Respectfully, Michael Horan Environmental Spec. I CC: File Copy Central Files DWQ 401 Wetlands Office /l/1 I •;IK 70 03/24/2005 14:59 FAX v ? ' r y Wt n" , ' 3 '' `PCcC ,\ 5 rt jGeB 5 a \/ k f .° ` No ? R T C NoA t "r { . W 6 3411' '?. ?? Fia o „4 ,t Wt • -' `y` -? VrA r kN U ,t . I ? - Wa6 I I' am ? ", 'Y ' 0:.4 y ' , 11?i` ^tiR3 ? I ? T r MtB r F :c. Ge8 T S NO k .NoA IA '- ra NuA Lv ` { ?..? b ' Ly ,. y " 1 a0 COB - N :4 UcB VrA ? A v'F'C B. o - FuA ?` JG? r rf ,.P? I,ti ' Mae ty r yrg _ - !? , f?,..? •^ ? ?'r N ? ? E} ?-:.y, ? . pap .CipA - ?! l t cg `J VrA Nob h F t Vre a0 VrA' -0 0 . 1 i VrA VIA I r Project "° Figure 2 - Soil Survey Map 893603 Heavner Tract Project. Mgr.: Johnston COVnty, NC SC Scale: 1" = 2,000` _- Ch / - I r? F , WC q • ' ?. ?'?=. Ch Ch v L7 "J Fnrb [ ce x, ,. K.,t VSM Pao ?. ` ?? '. \.?;.CeB . DWQ MITCHELL Z003 I r ? ?' PaE rI ? CCC ^ ?4i? r ''•F C ce . - 4 ??^ M? ti- ohs Ud .C .1 ?Y I K I? ? COB ' y'. f I ? / lJG f I ? `, C- v w' KOb G2 - i Nv w n " r Ce0 d o9 VrB ?, . Cob Nob I NoA VrA . 'e NcA _ _ UCB X08 _ veA t:. ?, VrB: koA . „ vrA ? - Ly m ¢ ?i5 1 L NoA IV f - u ^ .Mao VrA?8? ~4 kne, NoA VrA NcA ' Soil & Environmental Consultants, PE 11010 Raven Ridge Rd.- Raleigh, NC 27614 (919) 846-5900 - (919) 846-9467 Web Page: www.SandEC.com rye; ILe, °:eB s _ Ra Project No. Figure 2 - Soil Survey Map 8936 W3 Heavner Tract 1 Project Mgr. Johnston County NC ? Sc , Scale: 1" = 2,000° 12116/04 Johnston County Soil Survey Sheets 1 & 6 j Soil & Environmental Consultants, PA 11010 Raven Ridge Rd.- Raleigh, NC 27614 (919) 846-5900 - (919) 846-9467 Web Page: www.SandEC.corn 2 0 0 6 0 3 8 1 FILE Copy Soil & Environmental Consultants, PA 11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: (919) 846-5900 • Fax: (919) 846-9467 M ? !,/ To: US Army Corps of En Raleigh Regulatory F e Attn: Jamie Shern 6508 Falls of the Neuse Rd Suite 120 Raleigh, N.C. 27615 From: Aaron Cooper Soil & Environmental Consultants, P.A. 11010 Raven Ridge Road Raleigh, NC 27614 Re: Lyndale Subdivision Clayton, Johnston County, NC www.SandEC.com March 7, 2006 S&EC Project # 8936.W4 NC Division of Water Quality 401 Oversight and Express Permits Unit Attn: Cyndi Karoly ,,r,„, 2321 Crabtree Boulev Mt '55- Raleigh, L IJ *_0A11 On behalf of the owners, Lyndale Developers, LLC, please find attached a complete application and supplemental information requesting written concurrence from the U.S. Army Corps of Engineers (USACE) and the North Carolina Division of Water Quality (NC-DWQ) that the activities proposed below may precede utilizing Nationwide Permit 39 and 12. In addition, written authorization from the NC-DWQ is requested for activities proposed to impact Neuse River Buffers. Please contact me at (919) 846-5900 if you have any questions or require additional information. PROJECT SUMMARY Project Name L dale Subdivision Project Type Residential Subdivision Owner / Applicant L dale Developers, LLC County Johnston Nearest Town Clayton Waterbod Name UT to Neuse River Basin / Sub-basin 03-04-02 Index Number 27-(38.5) Class WS-IV; NSW IMPACT SUMMARY Stream Impact (acres): 0.043 Wetland Impact (acres): 0.016 Open Water''Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0.059 Total Stream Impact (linear feet): 246 Attachments: Pre-construction Notification (PCN) Application Form Agent Authorization USGS Vicinity Map Johnston County Soil Survey Detailed Impact Maps Cross-Sectional Profile Overall Drainage Plan (Erosion Control Plan) Detailed Level Spreader Designs Level Spreader worksheets Operations & Maintenance Agreement (signed and sealed) DWQ Buffer Letter (dated April 4, 2005) $475 Water Certification Fee Charlotte Office- Greensboro Office: 236 LePhillip Court, Suite C 3817-E Lawndale Drive Concord, NC 28025 Greensboro, NC 27455 Phone: (704) 720-9405 Phone: (336) 540-8234 Fax: (704) 720-9406 Fax: (336) 540-8235 Office Use Only: USACE Action ID No. No. p@12dW2 Do MAR 7 2006 "' -"FC;iT 'Ver"sidrrrv 'dh 05 20060381 (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ® Section 404 Permit ® Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: NWP 39 and NWP 12 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: Lyndale Developers, LLC Mailing Address: 4509 Creedmoor Road, Suite 202 Raleigh, NC 27612 Telephone Number: 919-838-8484 Fax Number: N/A E-mail Address: N/A 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Aaron Cooper Company Affiliation: Soil & Environmental Consultants Mailing Address: 11010 Raven Ridge Road Raleigh, N.C. 27614 Telephone Number: 919-846-5900 Fax Number: 919-846-9467 E-mail Address: acooperQsandec.com Page 1 of 9 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: Lyndale Subdivision 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): 1678-66-2762,1678-55-8829,1678-55-5242 4. Location County: Johnston Nearest Town: Clayton Subdivision name (include phase/lot number): Lyndale Subdivision Directions to site (include road numbers/names, landmarks, etc.): The property is located on the south side of Glen Laurel Road (SR 1902), approximately 6000 feet from the intersection with NC 42 in Clanton, North Carolina. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35.6334 ON -78.4095 °W 6. Property size (acres): +/- 70 acres 7. Name of nearest receiving body of water: UT to Neuse River: 27-(38.5): WS-IV: NSW 8. River Basin: Neuse (03-04-02) (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.ne.us/admin/mVs/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The site is currently forested. The general land use surrounding the property is a mixture of residential and agricultural. Page 2 of 9 10. Describe the overall project in detail, including the type of equipment to be used: The proposed project consists of the construction of a residential subdivision utilizing typical utilities i.e. sewer, water). Typical construction and grading equipment will be utilized for this project. 11. Explain the purpose of the proposed work: The purpose of the proposed project is to develop a residential subdivision to meet the demand for housing in the area. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. S&EC performed a detailed wetland delineation and Neuse River buffer evaluation on the site in January of 2005. The northern parcel jurisdictional determination was verified by Kevin Yates, formerly of the USACE on May 27, 2005 and the two southern parcels jurisdictional determinations were verified on September 20, 2005 by Jean Manuele. Mr. Mike Horan of the NC-DWQ verified the Neuse Buffers on the site on February 18, 2005 (NBRRO# 05-0049). V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. No future permit requests are anticipated for this project at this time. VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Page 3 of 9 1. Provide a written description of the proposed impacts: Proposed permanent impacts include 0.008 acres of wetlands and 202 linear feet of perennial stream channel. Temporary impacts include 0.008 acres of wetlands and 44 linear feet of stream channel. 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. Wetland Impact Type of Wetland Located within Distance to Area of Site Number Type of Impact (e.g., forested, marsh, 100-year Nearest Impact (indicate on map) herbaceous, bog, etc.) Floodplain Stream (acres) es/no linear feet #2 (NWP 39) Road Fill Forested/Linear Wetland no 20' 0.008 #4 (NWP 12) Temporary-sanitary Forested no 225' 0.008 sewer Total Wetland Impact (acres) 0.016 3. List the total acreage (estimated) of all existing wetlands on the property: +/-2.50 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage, multiply length X width, then divide by 43,560. Stream Impact Perennial or Average Impact Area of Number Stream Name Type of Impact Intermittent? Stream Width Length Impact indicate on ma Before Impact linear feet) acres #3'(NWP 39) ITT to Neuse Culvert & Dissipater Perennial 7' 202 0.031 #5 (NWT 12) UT to Neuse Temporary- sanitary sewer Perennial +1-51 23 0.003 #6 (NWP 12) UT to Neuse Temporarysanitary- sewer Perennial +/_191 21 0.009 Total Stream Impact (by length and acreage) 246 0.043 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Name of Waterbody Type of Waterbody Area of Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact indicate on ma ocean, etc. acres N/A N/A N/A N/A 0 Total Open Water Impact (acres) 0 Page 4 of 9 6. List the cumulative impact to all Waters of the U.S. resulting from the project. Stream Impact (acres): 0.043 Wetland Impact (acres): 0.016 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0.059 Total Stream Impact (linear feet): 246 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ® No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. N/A 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): N/A Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): N/A Current land use in the vicinity of the pond: N/A Size of watershed draining to pond: N/A Expected pond surface area: N/A VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were.not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. The client reauested a detailed wetland delineation prior to site elan development in order to _avoid jurisdictional areas and design accordingly. Impact #1 is necessary, it is being required to tie into Brickdale Drive across Glen Laurel Road as per DOT standards: the applicant is proposing an arched culvert to avoid stream channel impacts. In addition, impact #3 is necessary to access the larger, southern portion of the property. The applicant has avoided a significant amount of wetlands onsite and has designed around the natural resources on this site to the maximum extent practical. Page 5 of 9 VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at hLtp://h2o.en.r.state.nc.us/ncwetlands/strmgide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. Applicant will utilize the Ecosystem Enhancement Program for all required mitigation. 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at hqp://h2o.enr.state.nc.us/MU/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): 202 Amount of buffer mitigation requested (square feet): 0 Amount of Riparian wetland mitigation requested (acres): 0 Amount of Non-riparian wetland mitigation requested (acres): 0 Page 6 of 9 Amount of Coastal wetland mitigation requested (acres): IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ? No 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No ? 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. Will the project impact protected riparian buffers identified within 15A NCAC 213 .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 213 .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify Neuse ? Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Impact #1 (Road Crossing) Zone* (square feet) Multiplier Required Mitigation 1 8,167 3 (2 for Catawba) N/A 2 5,159 1.5 N/A Total 13,326 N/A Impact #3 (Road Crossing) Zone* (square feet) Multiplier Required Mitigation 1 9,465 3 (2 for Catawba) N/A 2 4,672 1.5 N/A Total 14,137 N/A Page 7 of 9 Impact #5 Sanita Sewer Zone* (square feet) Multiplier Required Mitigation 1 1,420 3 (2 for Catawba) N/A 2 841 1.5 N/A Total 2,261 N/A Impact #6 (Sanitary Sewer) Zone* (square feet) Multiplier Required Mitigation 1 1,823 3 (2 for Catawba) N/A 2 848 1.5 N/A Total 2,671 N/A * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. Riparian Buffer Mitigation should not be required for the impacts proposed. . XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. Proposed impervious surface area is less than 24%. Please see attached calculations on sheet 2 of 6. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. Part of the impacts requested are to connect to an existin sgt anitary sewer system, therefore a sanitary sewer system will be utilized for the proposed subdivision. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No XIV. Cumulative Impacts (required by DWQ) Page 8 of 9 Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: We have reviewed the "DRAFT Internal Policy, Cumulative impacts and the 401 Water Quality Certification and Isolated Wetland Proaams" document prepared by the NC Division of Water Quality on October 3, 2002, version 1.6. The draft states that most residential subdivisions are unlikely to cause cumulative impacts. Lyndale Subdivision does not meet any of the three criteria of private projects that can clearly result in cumulative impacts. We anticipate that you will advise us if a qualitative or quantitative impact analysis is required. XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 9 of 9 Nov-18-2005 11:15am From-RIVERS AND ASSOCIATES INC. R?G?ZVCUO g1l,'t.. +L_La y ?rrioi ?-rauw Nov-1r-268'2 03:68PO From-RIVERS AND AS 14TES INC. 11614 Rpm UP read 9198460319 T-004 P.002/002 F-764 1198486311 T-002 P•0021002 F-763 UAW "Pa *10111m um , th"N (019) 24"M ii«iM p A A-A Par (919) 1469147 Name: ? YMAUe ?P?? ?Ip alb + ?'?' , Addfaeet; c..?:dd.2o2, Phone: PWjwt Nu &Vwo4d0w ?L.sa rl e_41?„ .a,k?:uts t, caws Data: S - a c, T to Dot ofthe AM W U.$, Army CUP Of>gApineati, WdMbgt= Dlraict P.o. so.K 100 Wdtrjqfta, M 24403 Aft, MOM c a; P .O., watlando Rleww Coeduft ead P600 ft TO Wh6m it M6y Conoaal samprovd# & tlto coftit ka&wm or =mi*d o$ladaL haft &s*&M and auftin Pail & BrArO mauel CQOsvItalt6' PA to ad is UV WMIf u MY iP M is *0 peeeeaiaP of *Mgt an f & upat ?p iai tim in auppart of gip]ia?tinna, M. ftm thh day fatw" Z1fe &y of s nabif llup airy ptvvivue a?+eopamdme aoluern* dw soW ftr dd$ plW6d- WnC& 'lam ar&*dW&d u, trr MONO od profavbW ooarWy ream w h waRd oaq fa Itmmt *Mdeb to cater the propbrly who acaampsWel by AdtW suit Yaa skeaW cM ®UC to unaPe a dft macdaS prior la A dtia6 aw site, y? .l??vE?op 8 ,,> OR* Pte" owat t'a orM l Offmolls td cc; A ly 1?Q?- >t4noDWQ 2321 Ch6bw 1AauhvW+d atla1ei61L NC 27604 440n''-i otlalal'11 W >?to/C S}Lce cc! SAG Aum Coover Soil & MWAaam ml Cowullunw, PA 3917.6 LMMdala M" 236 Ilt 1No 1 $ulle C CO*ft*A • Granebum, NC 2745$ Phanrc (144)1104W Ph? (SM) 0 o 323! Pa: (794) 7204MM AGENT AUTHORIZATMN P MM 0? WAT?9 Michael F. Easley, Governor n William G. Ross Jr., Secretary I,,.? North Carolina Department of Environment and Natural Resources \OC? QG Gil U3 Alan W. Klimek, P.E. Director > l Colleen H. Sullins, Deputy Director Division of Water Quality April 4, 2005 (REVISED LETTER) Aaron Cooper S&EC 11010 Raven Ridge Road Raleigh, NC 27614 i ' 1 I' Ii± APR 2 1 2005 l Attn: Mr. Cooper BASIN: Neuse River X (15A NCAC 2B .0233) Tar-Pamlico (15A NCAC 2B .0259) NBRRO#05-0049 County: Johnston Complaint NOV Buffer Determination X Incident ## Appeal Call Project Name: Havner Tract Location/Directions: off of Ridge Glen off of Glen Laurel SR 1902 Subject Stream: UT to the Neuse River Date of Determination: 2/18/05 Feature Start Buffer GPS Points (if provided) End Buffer Stream Form Appeal Call Located on Soil Survey Located on USGS Topographic A S01 (approx. 35deg 37min 49.12sec, 78deg 24min 30sec X B Not Contested X X C Not Contested X D Not Contested X X E Not Contested X X Raleigh Regional Office 1628 Mail Service Center Water Quality Section Raleigh, NC 27699-1628 WDEM phone (919) 571-4700 Customer'Service facsimile (919) 571-4718 1-877-623-6748 Havner Tract S&EC 4/4/2005 Page 2 of 2 This on-site determination shall expire five (5) years from the date of this letter. Landowners or affectedparties that dispute a determination made by the DWQ or Delegated Local Authority that a surface water exists and that it is subject to the buffer rule may request a determination by the Director. A request for a determination by the Director shall be referred to the Director in writing c% Cyndi Karoly, DWQ Wetlands/401 Unit, 2321 Crabtree Blvd, Raleigh, NC 27604-2260. Individuals that dispute a determination by the DWQ or Delegated Local Authority that "exempts" a surface waterfront the buffer rule may ask for an ad judicatory hearing. You must act within 60 days of the date that you receive this letter. Applicants are hereby notified that the 60-day statutory appeal time does not start until the affected party (including downstream and adjacent landowners) is notified of this decision. DWQ recommends that the applicant conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This determination is final and binding unless you ask for a hearing within 60 days. The (owner/future owners) should notify the Division of Water Quality (including any other Local, State, and Federal Agencies) of this decision concerning any future correspondences regarding the subject property (stated above). This project may require a Section 4041401 Permit for the proposed activity. Any inquiries should be directed to the Division of Water Quality (Central Office) at (919)-733-1786, and the US Army Corp of Engineers (Raleigh Regulatory Field Office) at (919)-876-8441. t Respectfully, Michael Horan Environmental Spec. I CC: File Copy Central Files DWQ 401 Wetlands Office A _�r�:, �'' `�� S& EC LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff. Maintenance activities shall be performed as follows: 1. After construction and until vegetation has been established, level spreader(s) shall be inspected after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more frequently during the fall season and after heavy rainfall events: a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required. b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and concentrated flows downhill from the level spreader(s). c. A level elevation shall be maintained across the entire flow-spreading structure at all times. Repair or replace the level spreader if it is damaged. d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the level spreader surface. e. Repair eroded areas and replace/replant dead or damaged vegetation. 2. The contractor should avoid the placement of any material on and prevent construction traffic across the structure. If the measure is damaged by construction traffic, it shall be repaired immediately. 3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year to maintain proper functioning. I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: ?YNI?RG /??!/?c DPERS. L L C d ? ?leh ?• J`TY9? ?' Title: ?i'i?Nf? la?R Address: DSO 9 C/? EEAN1oOR ;FD• vi fc e- 616,&, A6 a 76 a 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, 'Ej?it??I E J• 44C?u/,q6 , a Notary Public for the State of No/?7-? Coro/HC?. County of A114KF , do hereby certify that _ _61e/) C S-fi/ 4'cc r personally appeared before me this F? day of !J /9 L 5?006 , and acknowledge the due execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires 3'? -200 Page 1 of 1 t � •{� 1 , • A,A �� ani I �n � i � If '` - i 1 ► 1 i F , �O ��� ���� - � % %=--1� a � \ of , aIQ 37 Avis •• � � U'70 Oj �\ O( �.. ti• 7D o { •_ � O U � 1 ��1902 '` `-'' .� '\ N 3/2 @A 3 V 2s 1901 t' OW tan r Proj ct o. Figure 1 - USGS Map Heavner Tract Soil & Environmental Consultants, PA Project Mgr.: SC Johnston County, NC 11010 Raven Ridge Rd.- Raleigh, NC 27614 (919) 846-5900 - (919) 846-9467 Web Page: www.SandEC.com Scale: 1" = 23000' 12/16/04 Clayton & Powhatan Quadrangles CO) W W W W 0) Q LU W LU co co) W LU LL, 0) Z Z Z Z } m O O O O Z Z Z Z x it 3 CQ 0 N ) 1? l- 0 1? 1, N 0 N fl st n N N JO J U. o I CO - C L ? 0 0 W Q 0Z ? ? N ? O ? O rn ? ? O oo O ao O ? d r IA W J J W J H 11 0 M W Z W O r O N d e- Co N N M O ~ U) I? = J Z U ?? ? u W rn (/? a O ? ? ? V M to N p ? ? N d 6 ? 6 C t C? C6 W m ? J W WW J >a - o o o m Un d m ao ? J ? ? CV ? CV CV CV O O tt? w aN J Q o OR Lo ? 0 m CD ? o I- a 00 C') V- d V- I-- V- n ? N d o d 0 a W Q Q W W N w 0 M et M lp m d Z W Q 1-: OR N 'd_ 7 C 7 O M UA O 00 C OD Q 0 y r- N M e Lo r.. co 0 ? W U. U a0 W 0' K ? 6 F? . Z p W i tl N 0 O b eo w 0 a? N S LL r t IC121 6 O Cl 1?pp 8 O O 0 N G O d Z C? I- G q 11 p F_ ? C pt Q ? < O_ < Z W O rV V _Z Z N_ ? 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N 0 ?- ON O C O O C o o o o 0 o 0 0 0 O oo ° o ?o o a R o c o° w N m o N R N v N N ep a N Q o N O 0 to 0 0 N Q M m O Q Q O 1o blG b b ' OaD ? b R {'?C 'o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1C 1 C IC 1 0 1D t V aD Q to 'C t o Q O O ? N ? N N N l9 M M Q 0 N O O N O Q b a D O N A O N G N C A - G 0 O G l7 113 0 ? ? ? N? N N N N N O baD b Ob O b O OaD 00 0 o Q c V ! O 00 00 o ,c o o oc co o0 0 o 0 00 00 A ON AO Or N 0 .?1 VQ A.= Q.-C I 4 0 1V M aD p p Ml9 O / OM 9 N.? 4 N ^ ? A0N A Q N 1 0 0 ?tD 0 Ol7 0 0 P 0 i ct 0 0 0 0 0A b b b 0 C O C G C O O O G C G O C O N' N b NN N N O N eo O ON O N W N A N M A O A O f? I A A I AA A A AIA OA O Io O O N M 0 0 r 0 0 0 O O ? N M 1o 1 0 w 1 0 1o 1 0 10 1 0 10 w w C O o O N M O O r a o 0 00 N 1Q 0 o 0 0 o o C o o ?-G ? O O O O O 0 0 0 0 0 0 0 0 0 IG b 101d 1c b bb b b1d w ww 0 M M b . 0 - 0 0 M Q 10 M A N m A O l9 Q W OO O1V C lV N1 oG O? a7 O 0) Z S S U U U A 9q a Px ; !l- U U uj U UU V M i U VU a Q? (199pp b 1 D ? ? oo 1 D INO 1ND Q Q y9 { b 1 0 0 ? 8 a t UU VV U U UU U MW U ULL U SWW ? ?$ io1 NON Q1 MO1`d m UU UU U U UU U VS fA UU 00 0 < N M b b 0 ? 0 A 0 1 D b1 D 1 D 1 0 1 01 D 1 0 1 D 0 Pervious=0.40 Impervious=- 98 *see column "F" STRUCTURE AREA .:..... THIS DRAINAGE AREA ONLY USE IN IMPERVIOUS SPREADSHEET ACCUM. ACREAGE CUMULATIVE COMPOSITE AREA C=.98 C c"a C'A C 1.29 ;5I>>>:« 0.63 0.8118 0.8118 0.629302326 .72 !?I'# > . 0.71 03054 1.1172 0.649534884 DURING D 1.18 ESIGIIC'>'%:>:»<z=s>>> 0.62 0.7272 0.7272 0.616271186 0.54 Q 0.70 0.3784 0.3784 0.700740741 0.63 aa5'::: 0.72 0.065 0.4434 0.703809524 1.95 ; 0.77 0.1082 12788 0.655794872 DESIGN 1.97 1 3.47 0.059 1.3378 0.680122013 DESIGN 2.15 >':;>':#l1€€;€ 0.72 0.13 1.4678 0.683651607 2.88 !z(133EEs 0.66 0.4834 1.9512 0.678206465 1.00 0.71 0.7132 0.7132 0.7132 1.45 s ?t'4k.... 0.75 0.3366 1.0498 0.724 0.18 I':[ 0.72 0.13 0.13 0.722222222 0.81 < EB8 0.66 0.4144 0.5444 0.672098765 0.81 «0:::::> 0.40 4E-07 0.5444004 0.67209843 1.39 0.59 0.817 0.817 0.587769784 2.73 > 0.72 0.3802 1.7416004 0.637948631 3.13 :a 21: 0.70 02818 2.0234004 0.646453595 3.13 «:fl :::>> 0.40 4E-07 2.0234008 0.646453517 3.13 40 0. 4E-07 2.0234012 0.646453438 1.30 0.61 0.7868 0.7868 0.605230769 2.05 0.63 0.474 12608 0.61502439 221 0.84 0.1336 1.3944 0.630950226 223 098 0.0196 1.414 0.634080717 0.80 . a; :: 0.65 0.5172 0.5172 0.6465 3.13 <>::tX 0.86 0.0864 2.0176 0.644600639 0.31 0.61 0.1878 0.1878 0.605806452 3.60 0.80 0.1278 2.3332 0.648111111 3.94 : <0 2*#::: 0.81 02752 2.6084 0.662030457 1.11 >038:::?:' 0.60 0.6644 0.6644 0.598558559 128 0.71 0.1202 0.7846 0.61296875 0.13 €O;tJ8 0.76 0.0984 0.0984 0.756923077 O -W >< .. I <....... ' 0.61 0.5238 0.6222 0.628484848 1.57 3#1IS ( 0.58 0.3364 0.9586 0.610573248 3.02 3If 0.50 0.0854 1.8286 0.605496689 1.11 1<3;€ 0.47 0.5194 0.5194 0.467927928 4.30 1 0.60 0.1028 2.4508 0.569953488 0.55 3«> 0.72 0.394 0.394 0.716363636 0.10 0.81 0.0806 0.0806 0.806 0.56 ><?8;18 0.63 02884 0.369 0.658928571 0.82 #1 0.62 0.162 0.531 0.647560976 0.86 0.84 0.0334 0.5644 0.65627907 0.38 a<15 0.63 0239 0239 0.628947368 0.53 0.79 0.118 0.357 0.673584906 0.90 0.62 0.2292 0.5862 0.651333333 2.11 s>#1 0.51 1.0702 1.0702 0.507203791 0.16 >>13 0.84 0.1336 0.1336 0.835 2.17 0.62 1239 1.3726 0.632534562 2.39 [#k i1#'[€ 0.90 0.1982 1.5708 0.657238494 5.41 ;afx 0.57 0.5206 3.1616 0.584399261 0.38 z11?< 0.63 0239 0239 0.628947368 627 >€ 2*>:: 0.69 0.3312 3.7318 0.595183413 1.80 # 0.50 0.894 0.894 0.496666667 8.07 0.40 4E-07 4.6258004 0.573209396 9.43 €f#11 0.63 0.2884 5.5004004 0.583287361 9.84 >ti3€f o.68 028 5.7804004 0.587439005 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following irnformation): Project Name : L >4 A t.ti; S,33 tx v . s a o r3 Contact Person: twq tO %-. SM % -ra . PC-- Phone Number. A111) 845 -'b 7tLevel Spreader ID:. j: F .5 _ Level Spreader Length 14a _ ft Drainage Area t '.'1 Z ac. Impervious Area 0,0-14 ac. Maximum Filter Strip/Buffer Slope Co. ?0 % grass Max. Discharge from a 10 Year Storm 18.0 cis Max. Discharge to Level Spreader 53 . u? cfs Filter Ship/Buffer Vegetation 64ASS (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre4reatrnent or Bypass Method R II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ffa requirement has not been niet, etfach an expbnatbn of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing, all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement An incomplete submittal package wtll result in a request for additional information and will substantially delay final review and approval of the project tic is Initials Level spreader is at least 13 ft per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf litter. Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers If bypass method specified in the Draft Level Spreader Design Option Document: tit Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter ship is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. The operation and maintenance agreement signed and notarized by the responsible party is provided. • Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES FES - 1 1/17/2006 SPREADER CALCULATIONS AREA = 1.72 ACRES INOFF CHARACTERISTICS C,= 0:65 FROM SYSTEM CALCS Tc= 5.10 MIN FROM SYS CALCS I10= 7.20 IN/HR I1 = 1 IN/HR Q10 = 8.0 CFS Qlo=CIloA QLS = 1.1 CFS QLS=CIIA QBP = 6.9 CFS QBP=Qio-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW BYPASS NEEDED ? 14.5 LF (QLS x 13) 140 LF (FROM PLAN) 10.8 CFS (DESIGN L113) NOT NEEDED DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following imbrmation): Project Name: LgODAL-E- CJs©??.s??nl Contact Person: DP.?r b L. 5, n % T t-A Phone Number: (11 A 049 3 3 4-1 Level Spreader ID: _ FES - Z Level Spreader Length { 20 ft Drainage Area 2 . S$ ac. Impervious Area t . SIB ac. Maximum Filter Strip/Buffer Slope X1000y 111 % grass Max. Discharge from a 10 Year Storm 14,2- cfs Max. Discharge to Level Spreader 121-41 cis Filter StripBuffer Vegetation Eavivss (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler aver, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatrnent or Bypass Method l bq QAe,5 REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ff a requirement has rat been met, attad? an explanation of why. At a minimum, a complete stomwrater management plan submittal includes a worksheet for each BMP, design calculations, plans and specification showing all BMPs and outlet structure details, a detailed drainage plan and a full executed operation and maintenance agreement. An incomplete submittal package will result in a. request for additional infomration and will substantially delay final review and approval of the project. Applicants itials; f Level spreader is at least 13 it per cis for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf rater. IA- a Pre-Form Scour Holes are on flat slopes only No structures are looted in protected buffers* If bypass method specified in the Draft Level Spreader Design Option Document: _ Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filler strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up IN) 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES SPREADER CALCULATIONS NAGE AREA = 2:88 ACRES INOFF CHARACTERISTICS C = 0.68 FROM SYSTEM CALCS TC= 5;60 MIN FROM SYS CALCS ho= 7.07 IN/HR I1 = 1 IN/HR Quo = 13.8 CFS Qlo=CIioA QLS = 2.0 CFS QLS=CIIA QBP = 11.9 CFS QBP=Qio-QLs LS LENGTH MINIMUM = LS DESIGN LENGTH = 25.5 LF (QLS x 13) 120 LF (FROM PLAN) LS MAX FLOW = 9.2 CFS (DESIGN U13) 1/17/2006 BYPASS NEEDED ? YES 4 LYNDALE SUBDIVISION FES-2 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-2-LS-MIN weir calculator Given Input Data: weir Type ....................... Equation ...................... solving for ..................... Depth of Flow ................... coefficient ..................... Height .......................... computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area ......................... Perimeter ..................... Wet Perimeter ................... Wet Area .................... Percent Full .................... Rectangular Suppressed Flowrate 6.0000 i n ?-- Co'' aer.I? - w4x F-Ck.J 0.6000 "J(o.sr 3-t * SS 12.0000 in 4.5378 cfs 4--- F1.0,-) %Z"T4- LjtTKfld•r 12.8348 cfs 2.2689 fps 48.0000 in 4.0000 ft2 72.0000 in 60.0000 in 2.0000 ft2 50.0000 % 0 I+IKP- = 2.C) Page 1 LYNDALE SUBDIVISION FES-2 LEVEL SPREADER OVERFLOW WEIR TO CONTROL BYPASS weir calculator Given Input Data: weir Type ....................... Equation ....................... Solving for .......... ......... Flowrate ...................... coefficient ........ .... ...... Height .......................... Computed Results: Depth of Flow ... .............. Full Flow ....................... velocity ........................ width ........................... Area ...... Perimeter ..................... Wet Perimeter ................... Wet Area .................... Percent Full .................... FES-2-OF Rectangular Suppressed Depth of Flow 5.2000 cfs 0.6000 12.0000 in l0 z (;L-0,3 FBY PASS AcLjtoSS FE,,?p 3.1587 in 38.5043 cfs SY TAt., s F. 0 it) 1.6462 fps 144.0000 in 12.0000 ft2 168.0000 in DEQ- or- F4-0,.,j 150.3174 in 3.1587 ft2 26.3227 % BY PASS W*4 Z. ?W Page 1 LYNDALE SUBDIVISION FES-2 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW FES-2-LS-10YR weir calculator Given Input Data: weir Type ....................... Rectangular Equation ....................... Suppressed solving for ...................... Depth of Flow ......... ........ Flowrate 9.1587 in o Ac??sS coefficient ............... .... 0.6000 4E?? ?at?l?ueA ,i („k Z Height ........... ............. 12.0000 in ?? 9 {(O + 3 • ? ? - ?° ? computed Results: Flowrate ........................ 8.5579 cfs Full Flow ....................... 12.8348 cfs velocity .................. .. 2.8032 fps width ...................... ` 48.0000 l To L.S to -jz Area ......................... . 4.0000 ft2 ,. ... Perimeter .................... 72.0000 in wet Perimeter ................... 66.3174 in 2 8?t PASTS) Wet Area ............ ...... 3.0529 ft2 Percent Full .................. 76.3225 % ?a f 3. ' GAS 13. .?--- 4'8"?. s?T Ljt,t . Page 1 144' 6YPASS DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following infomration): Project Name : Z-o bAL - Contact Person: VNI"o k,-. 15,44-ro Phone Number: Mill b 8- 334-7 Level Spreader ID:. ids - 3 Level Spreader Length 100 t Drainage Area 1.46 ac. Impervious Area 0.81 ac. Maximum Fitter Strip/Buffer Slope [v. `l % grass Max. Discharge from a 10 Year Stomp 1- cfs Max. Discharge to Level Spreader cfs Filter Ship/Buffer Vegetation ?, ZASS (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level speeder) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, c;arnop'red forest with leaf litter groundcover) Pre-treatrrient or Bypass Method 4 REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. if a requirement has not been met, athach an explanation of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. A li nitials Level spreader is at least 13 It. per cfs for thick ground cover or grass or 100 It per cfs in canopied forest with leaf litter. lk PwForm Scour Holes are on flat slopes only No structures are located in protected WNW If bypass method specified in the Draft Level Spreader Design Option Document: i? Bypass method is spec ww (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No strictures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. f 14 The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in serves can be used on slopes of up to 15% in forested areas with leaf frttler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES FES - 3 1/17/2006 SPREADER CALCULATIONS tAINAGE AREA = 1.45 ACRES INOFF CHARACTERISTICS C = 0.72 FROM SYSTEM CALCS Tc= 5.10 MIN FROM SYS CALCS Ilo= 7.20 IN/HR I1 = 1 IN/HR Q10 = 7.5 CFS Qlo=CIloA QLS = 1.0 CFS QLS=CIIA QBp = 6.5 CFS QBP=Q10"QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW = ASS NEEDED ? 13.6 LF (QLS x 13) 10.0. LF (FROM PLAN) 7.7 CFS. (DESIGN U13) NOT DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the b1lowin information): . Project Name : r GAWI rk. SJb bt %ma o? Contact Person: Dor.?tX> U. 'GeA L ?A Phone Number. (ajW €348 -'334-1 Level Spreader ID:. F-f 5 _ 4 Level Spreader Length G© ft (perpendicular to flow) Drainage Area 3. i 3 ac. (on-site and off-site drainage to the level spreader) Impervious Area 1.33 ac. (on-site and off-site drainage to the level spreader) Ma)amum Filter Ship/Buffer Slope (6% for forested, leaf littler cover, 8%forthick ground cover)* grass Max. Discharge from a 10 Year Storm ?. O cis Max Discharge to Level Spreader G . 3 cfs Filter Strip/Buffer Vegetation Cam (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method 110065 REQUIRED ITEMS CHECKLIST Initial in the space provided tD indicate the following design requirements have been met and supporting documentation is.attached. If a requirement has not been met, attadr an explanation of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project Aooliaftlnldals -Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 It per cfs in canopied forest with leaf litter. d [A Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers* If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (If applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. )OX A No structures are loomed in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement induces annual erosion and vegetation repair. The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on skrpes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES S CALCULA NAGE AREA = 3.13 ACRES INOFF CHARACTERISTICS .... C = ................... 0.65 . FROM SYSTEM CALCS Tc= 6.10 MIN FROM SYS CALCS 110= 6.94. IN/HR I1 = 1 IN/HR Q10 = 14.1 CFS Qlo=CI,oA QLS = 2.0 CFS QLS=CIIA QBP = 12.1 CFS QBP=Q10 QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW = 26.4 LF As x 13) 90! LF (FROM PLAN) 6.9 CFS (DESIGN U13) 1/17/2006 BYPASS NEEDED ? YES LYNDALE SUBDIVISION FES-4 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-4-LS-MIN weir calculator Given Input Data: weir Type ....................... Equation ............ ......... solving for ..................... Depth of Flow ................... 'Coefficient ................... Height .......................... Rectangular Suppressed Flowrate 6.0000 i n ?-- &c4-v- I"LS &J'L R Tc 0.6000 Pik '^'-t x 12.0000 in computed Results: Flowrate ........................ Full Flow ....... .... ........ velocity ........................ width ........................... Area ............................ Perimeter ....................... Wet Perimeter............ ..... Wet Area .................... Percent Full .................... 2.8361 cfs ?-' L.-&L, 'SMC?MX Ft?o..J 8.0217 cfs N??X ???yu.r $? Pr4$s 2.2689 fps 30.0000 in 2.5000 ft2 L 54.0000 in 42.0000 in 1.2500 ft2 50.0000 % Page 1 LYNDALE SUBDIVISION FES-4 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW FES-4-LS-10YR Weir Calculator for- Given Input Data: Weir Type ....................... Rectangular Equation ........................ Suppressed solving for ..... ..... Flowrate ?_ o F ?? Acc ?c5.5 Depth of Flow ................... 10.2000 in coefficient ..................... 0.6000 ?.$ w e-iX Height .......................... 12.0000 in ?a+ 4 ?2'` . 10 . z y Computed Results: Flowrate 6.2863 cfs Full Flow ....................... .8.0217 cfs < LS to %6z velocity - - - - - - - - - - - - - - - - - - - - 2 9583 fps Ta width ------- Area ........ Perimeter . Wet Perimeter Wet Area .... Percent Full 30.0000 in 2.5000 ft2 S.o = 14.3 eFS 54.0000 in CAS' ?yp?? ?crr?t,. 50.4000 in 2.1250 ft2 ?? 85.0000 % ?`? •3 ' W vs- Page 1 LYNDALE SUBDIVISION FES-4 LEVEL SPREADER BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW weir calculator Given Input Data: weir Type ....................... Equation ...................... Solving for .................... Depth of Flow ................... coefficient .... ............... Height .......................... computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area ......................... Perimeter ..................... Wet Perimeter ................... Wet Area ... Percent Full .................... FES-4-OF Rectangular suppressed t?c?P1a Flowrate 4.2000 in 0.6000 12.0000 in 7.9728 cfs $.O F?.o...? Au.V-OSg $YI S`? 38.5043 cfs 1.8983 fps ?p 144.0000 in 12.0000 ft2 168.0000 in 152.4000 in 4.2000 ft2 35.0000 % rcr Page 1 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the Project Name : L` 4 DAi-P- 5s ryDi j Contact Person: 'LAVA ID L,- Sn • -r? Level Spreader ID:_ FIBS- 6 information): Phone Number. Level Spreader Length 100 ft. Drainage Area ac. Impervious Area (. '1 S ac. Maximum Filter Strip/Buffer Slope 3. % grass QA7 Max. Discharge from a 10 Year Storm ?. D cis Max. Discharge to Level Spreader cfs Filter StripBulbr Vegetation cgp--V5 Pre-treatment or Bypass Method g`f meos, REQUIRED ITEMS CHECKLIST (perpendicular to flow) (on-site and off site drainage to the level spreader) (on-site and offside drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirommi has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project rll nts oitials Level spreader is at least 13 ft. per cis for thick ground cover or grass or 100 ft per cis in canopied forest with leaf litter. Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers* if bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided AMA Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. 4XI No structures are located in protected buffers. MAc& Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. 4U rA The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUITD RIVERS ASSOCIATES ,TIONS ..................... NAGE AREA = 3.94 ACRES INOFF CHARACTERISTICS C = .... 66 ............... . " FROM SYSTEM CALCS Tc= 6.34 MIN FROM SYS CALCS I10= 6.89 IN/HR I1 = 1 IN/HR Q10 = 17.9 CFS Qjo=CIjoA QLS = 2.6 CFS QLS=CIIA QBP = 15.3 CFS QBP=Q1o-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = 33.8 LF (QLs x 13) 1.00 LF (FROM PLAN) LS MAX FLOW = 7.7 CFS (DESIGN U13) 1/23/2006 BYPASS NEEDED ? YES LYNDALE SUBDIVISION FES-5 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-5-LS-MIN weir calculator Given Input Data: weir Type ....................... Rectangular Equation Suppressed Solving for ..................... Flowrate Depth of Flow ................... 6.0000 in ?- L-eV.- ©tFF. LS wE,,Z` To coefficient ..................... 0.6000 a-ePA-SAS c, jg-j (- Height .......................... 12.0000 in computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area ....... ....... ... .... Perimeter ...................... wet Perimeter ................... Wet Area .................... Percent Full .................... 3.4033 cfs e- -- LS Fk-ca •J/0?7- PvK PA4+S 9.6261 cfs 2.2689 fps 36.0000 in 3.0000 ft2 c.s L:fT?4174 60.0000 in 48.0000 in 1.5000 ft2 50.0000 % Page 1 LYNDALE SUBDIVISION FES-5 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW Weir Calculator Given Input Data: Weir Type ....................... Equation ........................ Solving for ..................... Depth of Flow ................... Coefficient ..................... Height ............... .... Computed Results: Flowrate ........................ Full Flow ....................... Velocity ........................ Width ............................ Area ............................ Perimeter .................... Wet Perimeter ................... Wet Area ........................ Percent Full .................... nor QV F*R- tcvEt. 5PNA0q. Rectangular Suppressed Flowrate o A«?a `S 10.2000 in 0.6000 w??R + 4.2- to. 2- 12.0000 in 7.5436 cfs &'"-- LS F1-04.J Z 18.1 erns 21 9.6261 cfs 1.5; + 10-(* 2.9583 fps OLS? WPOS) 'Q - 17.4 36.0000 in ?o GF5 3.0000 ft2 60.0000 in LS W? ? lkaG't?.+ 56.4000 in 2.5500 ft2 85.0000 % LYNDALE SUBDIVISION FES-5 LEVEL SPREADER BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW weir calculator Given Input Data: weir Type ....................... Equation ....................... Solving for .................... Depth of Flow ................... coefficient ..................... Height .......................... computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area .. . Perimeter ............:........ Wet. Perimeter .................... Wet Area .................... Percent Full .................... FES-5-OF Rectangular Suppressed Flowrate 4.2000 in 0.6000 12.0000 in t 10.6304 cfs 8YPA5,5? 51.3390 cfs 1.8983 fps 192.0000 in 16.0000 ft2 Z 8Y ?k?S 216.0000 in 200.4000 in 5.6000 ft2 35.0000 % Page 1 FL. C.-i ECDesign® 2003 Channel Analysis Report Project Informlation Last Update: 1/23/200611:31.47 AM Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: I Channel Desi?p,.•-, Channel Name: FES-5 Units: English Design Life: 6 months 1 Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.05 Discharge (cf/s) 17.9 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil Filled No Channel Length (ft) 80 Avg. Velocity (ft/s) 2.75 Channel Side Slopes Channel Bend false Bottom Width (ft) 8 Required Factor of Safety Left (HA V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (H:1 V) 3 Outside Bend Results Avg. Flow Depth (ft): 0.64 Velocity (ft/s) Shear Stress (lbstsgft) Pass Quantity Lining g Computed Maximum Allowed Safety Factor Computed Maximum Allowed Safety Factor (SY) Left LANDLOK C2 2.670 5.000 1.870 1.670 2.250 1.350 Y 56.210 Bottom LANDLOK C2 2.910 5.000 1.720 1.990 2.250 1.130 Y 71.100 Right LANDLOK C2 2.670 5.000 1.870 1.670 2.250 1.350 Y 56.210 Calculation Results Flow Depth (ft) 0.640 Left Wetted Perimeter (ft) 2.020 Flow Area (ft) 6.340 Bottom Wetted Perimeter (ft) 8.000 Right Wetted Perimeter (ft) 2.020 Total Wetted Perimeter (ft) 12.040 Hydraulic Radius (ft) 0.530 Avg. Velocity (ft/s) 2.750 Composite In• 0.0748 Avg. Discharge (cf/s) 17.900 EC-DESIGN® 2003 page 1 1/23/2006 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Projed Name : ?at,A~? 5? w o? v ?Sk oe? Contact Person: DX4 3 t b L- SM 4-TIA Phone Number. Fa?) -6149 - 334 Level Spreader ID:. ?ES Level Spreader Length dad it Drainage Area 4,3 ac. Impervious Area i . ZGP ac. Maamum Filter Strip/Buffer Slope Lo, % grass Max Discharge from a 10 Year Storm t1• CO • cfs Max Discharge to Level Spreader Colo cis Filter StripJBuffer Vegetation c2m (perpendicular to flow) (on-site and of -site drainage to the level spreader) (on-site and o"te drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method NOVA REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. lfa requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details; a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final. review and approval of the project. I 'tials Apolicaots Level spreader is at least 13 it. per cfs for thick ground cover or grass or 100 It per cfs in canopied forest with leaf litter. Pre-Form Scour Holes are on flat slopes only No structures are located in protected bu%W If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically, and spatially separate from the bypass discharge. No structures are located in protected buffers. JWU Plan details for the bypass and outlets are provided: The operation and maintenance agreement includes annual erosion and vegetation repair. MIA The operation and. maintenance agreement signed and. notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SU&D RIVERS ASSOCIATES FES - 7 1/23/2006 SPREADER CALCULATIONS NAGE AREA = 43 ACRES INOFF CHARACTERISTICS ... C = .................... 0.57 ... . FROM SYSTEM CALCS Tc= 510 MIN FROM SYS CALCS 110= 7.20 IN/HR 11 = 1 IN/HR 10 2s • ? 10 ? 1 = QLS 2.5 ? 1A <- ofd Z @ CFS QLS=CI QBp = 15.2 CFS QBP=Q10-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH LS MAX FLOW = BYPASS NEEDED ? 31.9 LF (QLS x 13) 2e 8QI LF (FROM PLAN) 6.2 CFS (DESIGN U13) YES ECDesip@ 2003 Channel Analysis Report Project WormRtion Last Update: 1/23/200611:50:59 AM I Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: Channel Design Channel Name: FES-7 Units: English Design Life: 6 months Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.1 Discharge W/s) 17.6 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil Filled No Channel Length (ft) 60 Avg. Velocity (ft(s) 3.84 Channel Side Slopes Channel Bend false Bottom Width (ft) 6 Required Factor of Safety Left (H:1 V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (HA V) 3 Outside Bend Results Avg. Flow Depth (ft): 0S7 Velocity (ft/s) Shear Stress (Ib s/sgft) Pass Quantify Lining Materials Computed Maximum Allowed Safety Factor . Computed Maximum Allowed Safety Factor Left LANDLOK TRM 435 3.730 18.000 4.830 2.990 5.000 1.670 Y 42.160 Bottom LANDLOK TRM 435 4.070 18.000 4.420 3.560 5.000 IAA Y ` 40.000 Right LANDLOK TRM 435 3.730 18.000 4.830 2.990 5.000 1.670 Y 42.160 Calculation Results Flow Depth (ft) 0.570 Left Wetted Perimeter (ft) 1.810 Flow Area (ft) 4.400 Bottom Wetted Perimeter (ft) 5.990 Right Wetted Perimeter (ft) 1.810 Total Wetted Perimeter (ft) 9.610 Hydraulic Radius (ft) 0.460 Avg. Velocity (ft/s) 3.840 Composite Inv 0.0689 Avg. Discharge (cf/s) 17.600 EC-DESIGNO 2003 page 1 1/23/2006 LYNDALE SUBDIVISION FES-7 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-7-LS-MIN MAX FI-Ou 7 To LS i,i/our t3q PASS weir calculator Given Input Data: weir type ....................... Equation ...................... solving for .... ................ Depth of F1oW ................... coefficient ..................... Height computed Results: Flowrate ........................ Full Flow ....................... velocity ......... ...... width ..................... .... Area ......................... Perimeter ..................... Wet Perimeter ................... Wet Area ...... .......... Percent Full .................... Rectangular suppressed Flowrate 6.0000 in i? DiFF BETw" LS wuR- 1260000 i n 6Y Phss w EA IL 1.4181 cfs ?2 eA t . 4 = Z. s c.FS 4.0109 cfs ?'??? = 2. S cK 2.2689 fps 15.0000 in 1.2500 ft2 L'S w'EA?? k-kd4n4 39.0000 in 27.0000 in 0.6250 ft2 50.0000 % Page 1 LYNDALE SUBDIVISION FES-7 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW FES-7-LS-10YR MU `"C10 To L.EJ£cr S??4atZ weir calculator Given Input Data: weir Type ....................... Equation ....................... solving for ..................... Depth of Flow ................... coefficient ..................... Height ........................ Computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area ............................ Perimeter ..................... wet Perimeter ................... Wet Area .................... Percent Full .................... (,,o LS It, + U'i1-SS 1-7 + Rectangular Suppressed Flowrate 9.8000 in ?-- F--o.-.a ©rr-PTH C- L.S taf"i r- QUO 0.6000 12.0000 in 2.9601 cfs 4---- 3.0 LS FL-o-J FAC-,4 Q10 4.0109 cfs M4W 3.1 cFS EA. or 2.8997 fps 15.0000 in 1.2500 ft2 LS t-jf-i t- 39.0000 in 34.6000 in 1.0208 ft2 81.6667 % Page 1 LYNDALE SUBDIVISION FES-7 LEVEL SPREADER, BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW weir calculator Given Input Data: weir Type ....................... Equation ...................... Solving for ................ ... Depth of Flow ................... coefficient ..................... Height ......................... computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area .......................... Perimeter ....................... Wet Perimeter ................... Wet Area .................... Percent Full .................... Pis 5q PASS tmp#35 Rectangular suppressed Flowrate 3.8000 in 8'c Pr4SS c.JE [ 2 0.6000 12.0000 in 11.4357 cfs <-P\o . 11.4 aypA 5 64.1738 cfs 1.8056'fps 240.0000 in 20.0000 ft2 264.0000 in 247.6000 in -5s 6.3333 ft2 31.6667 % Page 1 k..) S I ?- UA T4 DWQ Project No DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET PROJECT INFORMATION (please complete the following information): Project Name : Contact Person: Level Spreader ID: T*a t t? L. 5M, TN Phone Number. Fe S-S Level Spreader Length } b t Drainage Area 0.55 ac. Impervious Area 0.30 ac. Maximum Filter StriplBuffer Slope 3. % grass Max. Discharge from a 10 Year Storm °L • `? cfs Max. Discharge to Level Spreader 2 , f3 cis Filter StripBuffer Vegetation CABS Pre-treatment or Bypass Method ?A IL REQUIRED ITEMS CHECKLIST (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)" (thick ground cover or grass, canopied forest with leaf litter groundcover) Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ff a requirement has not been met, atlaeh an explanation of why. At a minimum, a complete stormwater management plan subnu W includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. ADdicaftinifials Level spreader is at least 13 It. per cis for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf litter. Pre-Form Scour Holes are on fiat slopes only DL a? No structures are located in protected buffers" If bypass method specified in the Draft Level Spreader Design Option Document: 13 Bypass method is specified Cif appfic able) and plan details and kalc ulations are provided. Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. ? A The operation and maintenance agreement signed and notarized by the responsible party is. provided. Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slimes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be orated in Zone.1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES SPREADER CALCULATIONS AREA = 0.55 ACRES INOFF CHARACTERISTICS C =. .. 0..72 ..................... FROM SYSTEM CALCS .. . Tc= 5.00 MIN FROM SYS CALCS 110= 7.22 IN/HR 11 = 1 IN/HR Q1o = 2.9 CFS Q10=CI10A QLS = 0.4 CFS QLs=CI1A QBP = 2.5 CFS QBP=Q1o-QLs LS LENGTH MINIMUM = LS DESIGN LENGTH = 5.15 LF (QLs x 13) .............. 80: LF (FROM PLAN) LS MAX FLOW = 6.2 CFS (DESIGN U13) 1/23/2006 BYPASS NEEDED ? NOT NEEDED DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Project Name : t -?d bArk. 59t3s?i.? 5 c o rJ Contact Person: Lew t,tD L, 5AA t T H Phone Number. (40) !84!6- %S4-7 Level Spreader ID:.S Level Spreader Length "70 It Drainage Area O. S60 ac. Impervious Area 0.56 ac. Maximum Filter StripSuffer Slope , grass Max. Discharge from a 10 Year Storm 4.0 cfs Max. Discharge to Level Spreader 4.0 cfs Filter Strip/Buffer Vegetation GzkSS (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method J/A 11. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. /f a requirement has not been met, attach an explanation of why, At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project Applicants itials ?- Level spreader is at least 13 It. per cfs for thick ground cover or grass or 100 It per cfs in canopied forest with leaf litter. 4 _Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers* If bypass method specified in the Draft Level Spreader Design Option Document i'?_Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan detais for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. 60 The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES SPREADER DRAINAGE AREA = 0.86.:ACRES INOFF CHARACTERISTICS C = 0:66 FROM SYSTEM CALCS Tc= .... 5:3D ...................... MIN FROM SYS CALCS ..... I10= 7.14 IN/HR I1 = 1 IN/HR Q10 = 4.1 CFS Qlo=CI,oA QLS = 0.6 CFS QLS=CIIA QBP = 3.5 CFS QBP=QWQLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW = 7.38 LF (QLS x 13) 7Q LF (FROM PLAN) 5.4 CFS (DESIGN U13) 1/23/2006 BYPASS NEEDED ? NOT NEEDED ECDesign® 2003 Channel Analysis Report Project Information Last Update: 1/23/20061:57:37 PM Project Name: Lyndale Description: City: Raleigh State: NC Units: English. Notes: I Channel Design I Channel Name: FES-9 Units: English Design Life: 6 months Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.07 Discharge (cVs) 4.1 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil FEW No Channel Length (ft) 100 Avg. Velocity (ft/s) 1.67 Channel Side Slopes Channel Bend false Bottom Width (ft) 4 Required Factor of Safety Left (HJ V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (HA V) 3 Outside Bend Results Avg. Flow Depth (ft): 0.43 Velocity (ft(s) Shear Stress (lbs/sgft) Pass Quantity Lining g Computed Maximum Allowed Safety Factor Computed Maximum Allowed Safety Factor Left LANDLOK C2 1.630 5.000 3.070 1.580 2.250 1.420 Y 70.270 Bottom LANDLOK C2 1.770 5.000 2.820 1.860 2250 1210 Y 44.440 Right LANDLOK C2 1.630 5.000 3.076 1.580 2.250 1.420 Y 70270 Calculation Results Flow Depth (ft) 0.430 Left Wetted Perimeter (ft) 1.350 Flow Area (ft) 2.250 Bottom Wetted Perimeter (ft) 3.990 Right Wetted Perimeter (ft) 1.350 Total Wetted Perimeter (ft) 6.690 Hydraulic Radius (ft) 0.340 Avg. Velocity (ft/s) 1.670 composite W 0.1080 Avg. Discharge (cf(s) 4.100 EC-DESIGNO 2003 page 1 1/23/2006 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET PROJECT INFORMATION (please complete the following Project Name : Contact Person: Level Spreader ID:. 'DA % K b t.. 5h'? , -r 'A Phone Number. FEs- o Level Spreader Length ( 46 it Drainage Area an. Impervious Area 3 . i ac. Maximum Filter Ship/Buffer Slope (a, % grass Max. Discharge from a 10 Year Storm ?O cts Max. Discharge to Level Spreader 10,16 cfs Filter Ship/Buffer Vegetation 640fNess Pre-treatment or Bypass Method ZgM55 REQUIRED ITEMS CHECKLIST orpendicular to lbw) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Initial in the space provided to indicate the following. design requirements have been met and supporting documentation is attached. If a requirement has not been met, attach an explanation of why. At a minimum, a complete sto mweler management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement An incomplete submittal package will result Ina request for additional information and will substantially delay final review and approval of the project Aaglic?ts l ' 'als Level spreader is at least 13 it. per cfs for thick ground cover or grass or 100 it per cis in canopied forest with lei rater ft . [ft Pre-Form Scour Holes are on flat slopes only No structures are located to protected butters: If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filler strip is hydraulically and spatially separate from the bypass discharge. iota No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUWD RIVERS ASSOCIATES S .. ............. NAGS AREA = 9:84 ACRES INOFF CHARACTERISTICS C = 0.59 FROM SYSTEM CALCS ... Tc= .................... 6.34 ..... - MIN FROM SYS CALCS I10= 6.89 IN/HR I1 = 1 IN/HR Q10, = 40.0 CFS QIo=CI,OA QLS = 5.8 CFS QLS=CIIA QBP = 34.2 CFS Qgp=QIo-()LS LS LENGTH MINIMUM = 75.5. LF (QLS x 13) LS DESIGN LENGTH = LS MAX FLOW = ............... . 145; LF (FROM PLAN) 11.2 CFS (DESIGN L/13) 1/24/2006 BYPASS NEEDED ? YES LYNDALE SUBDIVISION FES-10 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-10-LS-MIN weir calculator Given Input Data: weir 'type .. . Equation .... solving for . Depth of Flow coefficient . Height ...... Computed Results: Flowrate .... Full Flow ... velocity .... width ....... Area ...... Perimeter ... wet Perimeter Wet Area .... .Percent Full Rectangular suppressed 12 0000 i n 4-- l.S 0.6000 Aap $?pA55 t?-1? 24.0000 in 5.3478 cfs ?-- +n/!X F'-'x.' To C'C-JF- " Si?I?EADE'? 15.1259 cfs ? ft- 5y pptss 3.2087 fps 20.0000 in 3.3333 ft2 LS I SAf- k-LIJ4M4 68.0000 in 44.0000 in 1.6667 ft2 50.0000 % Page 1 FES-10-LS-10YR LYNDALE SUBDIVISION FES-10 LEVEL SPREADER OVERFLOW WEIR Ql0 MAX a LS LJF-I TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW weir Calculator Given input Data: Weir Type ....................... Rectangular Equation ........................ Suppressed 19.1 S ?' Z-o4?4L solving of f F1ow ................. . 19o1500 e in Depth Coefficient ... .. 0.6000 Height 24.0000 in computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area ......... Perimeter ....................... Wet Perimeter ................... Wet Area .................... Percent Full .................... 10.7810 cfs 9--- VOW Q ?O T-L D w 3 If 40 Nil) 15.1259 cfs Io.8 + 7-1-I = 4• 4.0534 fps 6s-) (-SP) 20.0000 in (-z7 L,r.,J4T4 3.3333 ft2 68.0000 in 58.3000 in 2.6597 ft2 79.7917 % Page 1 LYNDALE SUBDIVISION FES-10 LEVEL SPREADER BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW 0%o sit ?ASS FES-10-OF weir calculator Given Input Data: Weir Type ....................... Rectangular Equation Suppressed solving for. .. Flowrate Depth of Flow . . ................. 7.1500 in - p,_nt4t4 of fLos-j @ L-VA Coefficient ................. 0.6000 Height .................... . 12.0000 in computed Results: Fl owrate ... 29.5151 cfs ?-- Fro,, @ 8`f ??sS W?? Qio Full Flow ....................... 64.1738 cfs velocity ........................ 2.4768 fps width ........................... 240.0000 in ?--L Area ........... .......... 20.0000 ft2 8`ft??Ss Perimeter ..................... 264.0000 in Wet Perimeter ................... 254.3000 in Wet Area 11.9167 ft2 Percent Full .................... 59.5833 % Q?9 = 40 cFS ti 0, 8 Cr-s ?- 29. S = 4o.3 e.Fs Page 1 ECDesign® 2003 Channel Analysis Report I Project Information Last Update: 1/24/2006 9:23:21 AM Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: I Channel Design I Channel Name: FES-10 Units: English Design Life: 6 months Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (fVft) 0.075 Discharge (cf/s) 10.8 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil Filled No Channel Length (ft) 70 Avg. Velocity (ft/s) 2.36 Channel Side Slopes Channel Bend false Bottom Width (ft) 8 Required Factor of Safety Left (HA V) 3 Bend Radius (ft) .0 Channel Depth (ft) 2 1 Right (H:1 V) 3 Outside Bend Results Avg. Flow Depth (ft): 0.45 Velocity (Ws) Shear Stress (lbs/sgft) Pass Quantity Lining Materials Computed Maximum Allowed Safety Factor Computed Maximum Allowed Safety Factor (SY) Left LANDLOK C2 2.290 5.000 2.180 1.780 2.250 1.260 Y 49.190 Bottom LANDLOK C2 2.500 5.000 2.000 2.120 2.250 1.060 Y 62.220 Right LANDLOK C2 2.290 5.000 2.180 1.780 2.250 1.260 Y 49.190 Calculation Results Flow Depth (ft) 0.450 Left Wetted Perimeter (ft) 1.430 Flow Area (ft) 4.240 Bottom Wetted Perimeter (ft) 8.000 Right Wetted Perimeter (ft) 1.430 Total Wetted Perimeter (ft) 10.860 Hydraulic Radius (ft) 0.390 Avg. Velocity (ft/s) 2.360 Composite In' 0.0874 Avg. Discharge (cf/s) 10.800 EC-DESIGN® 2003 page 1 1/24/2006 C? Z Z J Z Q Q WN i? W Q W 601 J O Z W Q? Z J oCW?WZV ?O?Q?j a W WWI oZs LL- .? W W C) ?. W p: J Q QQ(IjjW LAJ O W Q. WW p (n ctQZ LJJ LL- JQ I-N Q C LQ 4~i ?czW Z c?ZQ? QL z ???za 43 ?WW I W a C) N Q o W CL z JW ai J INSTALLATION PRODUCTS DESIGNED TO CONTROL EROSION SHOULD BE INSTALLED IN ACCORDANCE WITH +MANUFACTURER'S INSTRUCTMNS. ANY MAT OR BLANKET-TYPE PRODUCT USED AS A PROTECTIVE MULCH SHOULD PROVIDE COVER OF AT LEAST 30% OF THE SURFACE WHERE IT IS APPLIED. L APPLY LIME, FERTILIZER AND SEED BEFORE LAYING THE NET OR MAT. 2. START LAYING THE NET FROM THE TOP OF THE CHANNEL OR SLOPE AND UNROLL IT DOWN THE GRADE. ALLOW NETTING TO STAY LOOSELY ON THE SOIL OR MULCH COVER BUT WITHOUT WRINKLES -- DO NOT STRETCH. 3. TO SECURE THE NET, BURY THE UPSLOPE END IN A SLOT OR TRENCH NO LESS THAN 6 INCHES DEEP, COVER WITH SOD_, AND TAMP FIRMLY. STAPLE THE NET EVERY 12 INCHES ACROSS THE TOP END AND EVERY 3 FT. AROUND THE EDGES AND BOTTOM. WHERE 2 STRIPS OF NET ARE LAID SIDE BY SIDE, THE ADJACENT EDGES SHOULD BE OVERLAPPED 3 INCHES AND STAPLED TOGETHER. EACH STRIP OF NETTING SHOULD ALSO BE STAPLED DOWN THE CENTER, EVERY 3 FT. DO NOT STRETCH THE NET WHEN APPLYING STAPLES. 4. TO JOIN TWO STRIPS, CUT A TRENCH TO ANCHOR THE END OF THE NEW NET. OVERLAP THE END OF THE PREVIOUS ROLL 12 INCHES AND STAPLE EVERY 12 INCHES JUST BELOW THE ANCHOR SLOT. MAINTENANCE INSPECT ALL MULCHES PERIODICALLY, AND AFTER RAINSTORMS TO CHECK FOR RILL EROSION, DISLOCATION OR FAILURE. WHERE EROSION IS OBSERVED, APPLY ADDITIONAL MULCH. IF WASHOUT OCCURS, REPAIR THE SLOPE GRADE, RESEED, AND REINSTALL MULCH. CONTINUE INSPECTIONS UNTIL VEGETATION IS FIRMLY ESTABLISHED. IN CHANNELS, ROLL OUT STRIPS OF NETTING PARALLEL TO THE DIRECTION OF THE FLOW AND OVER THE PROTECTIVE MULCH JOIN STRIPS BY ANCHORING AND OVERLAPPING EROSION CONTROL MATTING PLACEMENT (NOT TO SCALE) le, 0 0 3 ? ? old. '?'? I Y ? J tR ? ?l8 mom o D 1 I l ? ;?e 1 S 8?\A// <A NI e. F • ?1 / ?- N T I I ? / 1 ?h i _ 10 \ r 1 1 ' I I ? / / / ?? ? I I I I / l M i o- O 3 u / ?// / n r n , A,? 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I t? \ ?? w?a I I I t t S S ' S t ` ??` i I I ! ! t f t t 1 t t 2 0 t I S ` tt t !' ? ? t\ ? t t t i i i i i t l t c ,,,,? r i t 20$ t t i I JC4 t !! t / t 204 ! t t `? t ` / ! I S / , J ! i ! S ,?--? ° i • / 200 , ! ! / ! --' tom. y i I 1 l !l? ! r te t t I i /// ` !! r t t ! L??? I ! ! , ? I t l ti f I f S I / \ ?'\\I J ?? t??11 ? ?tl I1?ff/ ofo 11 4 ? ?\ j ' ? { r? l?/ /? t \ p \ \ `? W /per S 1 i I 1 w m \ t rn S t ?I i ?ioo I I I I ?\ QZ\ \ ~ S N t i ) ?! I f I ! \ \ \ 2 ? pW ` \ ? \ \? SNP ? ? I ! ? I 1 I ! ! 0 0 N N N ? z? W 4?a titiW QOM ti O?? U C?W2 ?ZO 2VQ?Oi, O O r 0 z uj V o V ? ? oc __ w O N C °?, u a O . : V a. V oc a: O rn O r W N N N °o° 200603 8? LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff. Maintenance activities shall be performed as follows: 1. After construction and until vegetation has been established, level spreader(s) shall be inspected after every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more frequently during the fall season and after heavy rainfall events: a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required. b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and concentrated flows downhill from the level spreader(s). c. A level elevation shall be maintained across the entire flow-spreading structure at all times. Repair or replace the level spreader if it is damaged. d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the level spreader surface. e. Repair eroded areas and replace/replant dead or damaged vegetation. 2. The contractor should avoid the placement of any material on and prevent construction traffic across the structure. If the measure is damaged by construction traffic, it shall be repaired immediately. 3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year to maintain proper functioning. I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: ,LyNl>fiG? l???/??DPERS. LLG d? ?leh ?• J`T?9?-?' Title: Address: X509 eREEDMOOR ED., .?vifc -20.24 Nc a-76 a Phon Signs Date: 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, j?it/t?7 ? ?1 4A Ciy/RE , a Notary Public for the State of Naf?,? faro/H? County of Gil/A-KE , do hereby certify that /e/1 S-fii 4'?c r personally appeared before me this day of i5 019-e , 9006 , and acknowledge the due execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires 3 %2 -'2oo g Page 1 of 1 U) a cl Q D d z W z W W W z z } m O O 0 0 Z Z Z Z ?( 11 Q ? ? N I? ? ? I? ? N N C d; N N 0 J U. ? ? I Cfl I Cfl C ? ? Z II co F- W a Q N O O 0 O O O M .d oz N W J J W ? 11 W W V- N eT- N M I ~ ? J Z U .? CO ? u 0 CO ? 0 0) - O ?- M t N lA S O N CL O s N o N C W m 0- ? (/? W - _I W Q ? O O O GO W ?t ?0 o0 W > J lye ?- CV ? N N N O C tI? w CL ?U) J J a F - O II 6 c ti '41 l' P- oi 4 0d' e r W C) a Q W W N W LO M It M Ln cc d Z ? ? Q I? , cp N st ? 7 Ch a) M ? LO 0 00 0 00 0 [ Q 0 0 z ?- N M Nt 0 r-_ co CD W U. I s m W R' Z ? W W g W N W? 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V U U * S M = eg g" -- , a ; o ! it i- s n" U U I 16 U U II W W U U LL c. f Or7 ? po R Y s a 1ND ?gN t ° s 1 Qo ]ES 3 s an -AN n5 UU U UU UU UU U= 0 vI U 5 aa ?1 °olo al ?olQO lbo1°o e1`OO 1°o °o m W N Pervious=0.40 Impervious=0.98 •aee cohenn "F" THIS DRAINAGE AREA ONLY USE IN IMPERVIOUS SPREADSHEET ACCUM. ACREAGE CUMULATIVE COMPOSITE STRUCTURE AREA AREA (C=.98) C ea C`A C .....::1 129 0.63 0.8118 0.8118 0.629302326 :::::::::: 172 ::>0.71 0.3054 1.1172 0.649534884 DURING DE41 1.18 >>t1d!E:s.: :>: 0.62 0. 0.54 :>tl#>> 0.70 0. 0.63 OfJS :> 0.72 0 1.95 <> 0.77 0. DESIGN 1.97 3.47 0 DESIGN 2.15 >`:>>(II<< :> 0.72 2.88 tt>33<; > 0.66 0. 1.00 :> < <.:: E1, .:.......... > 0.71 .. 0. 1.45 >> >< 0.75 0. 0.18 >x>9€> <> > 0.72 0.81 >`0 28€:€:.' < '•>: 0.66 0. 0.81 0.40 1.39 ''ad5 0.59 0 2.73 >»#tx #»'` > 0.72 0. 3.13 0.70 0 3.13 ?>«a>> 0.40 3.13 ? (xs> >: 0.40 1.30 ><<D6 0.61 0. 2.05 0.63 0 221 >(1I 0.84 0. 2.23 <>##fiik>>'> 098 0. 0.80 33>> 0.65 0. 3.13 <xx><><> » 0.86 0. 0.31 0.61 0. 3.60 0.80 0. 3.94 0.81 0 1.11 »8;38> 0.60 0. 128 <_>#) <# 0.71 0. 0.13 »la8z<:E » 0.76 0. 0.99 <#€x1i 1> 0.61 0. 1.57 'A<18 0.58 0. 3.02 1k 0.50 0. 1.11 <fll13<><> > 0.47 0. 4.30 `xx»?<> 0.60 0. 0.55 :<><#>>> 0.72 0 0.10 :<>:(X #17»:<> 0.81 0. 0.56 :<818> » 0.63 0 0.82 >ix9>> 0.62 0 0.86 a;>33 0.84 0. 0.38 ':3x15•':>::> : 0.63 0 0.53 €xx1€€ 0.79 0 0.90 >S>>> 0.62 0 2.11 «>;#1:::>::: :> 0.51 1. 0.16 fl13>< 0.84 0. 2.17 0.62 1 2.39 #':xx1#>E 0.90 0. 5.41 ?#<a 21>`<:>> `: 0.57 0. 0.38 :€€€xxI',« >< <> 0.63 0 627 0.69 0. 1.80 0.50 0 8.07 <>(#>>>> 0.40 9.43 0.63 0 9.84 0>> ` 0.68 7272 0.7272 0.616271186 3784 0.3784 0.700740741 .065 0.4434 0.703809524 1082 12788 0.655794872 .059 1.3378 0.680122013 .13 1.4678 0.683651607 4834 1.9512 0.678206465 7132 0.7132 0.7132 3366 1.0498 0.724 .13 0.13 0.722222222 4144 0.5444 0.672098765 E-07 0.5444004 0.67209843 .817 0.817 0.587769784 3802 1.7416004 0.637948631 2818 2.0234004 0.646453595 E-07 2.0234008 0.646453517 E-07 2.0234012 0.646453438 7868 0.7868 0.605230769 .474 12608 0.61502439 1336 1.3944 0.630950226 0196 1.414 0.634080717 5172 0.5172 0.6465 0864 2.0176 0.644600639 1878 0.1878 0.605806452 1278 2.3332 0.648111111 2752 2.6084 0.662030457 6644 0.6644 0.598558559 1202 0.7846 0.61296875 0984 0.0984 0.756923077 5238 0.6222 0.628484848 3364 0.9586 0.610573248 0854 1.8286 0.605496689 5194 0.5194 0.467927928 1028 2.4508 0.569953488 394 0.394 0.716363636 0806 0.0806 0.806 884 0.369 0.658928571 162 0.531 0.647560976 0334 0.5644 0.65627907 239 0.239 0.628947368 118 0.357 0.673584906 292 0.5862 0.651333333 0702 1.0702 0.507203791 1336 0.1336 0.835 239 1.3726 0.632534562 1982 1.5708 0.657238494 5206 3.1616 0.584399261 239 0239 0.628947368 3312 3.7318 0.595183413 894 0.894 0.496666667 E-07 4.6258004 0.573209396 884 5.5004004 0.563287361 28 5.7804004 0 0 4 4 4 2 2 4 2 0.587439005 0 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): PrgW Nam : L Ac.&- S 9 aOcv . s to c? Contact Person: 17M/ k O L" Stir . -r?. PC-- Phone Number. AM 8425 -'5 Level Spreader ID:. ES ?„ Level Spreader Length 14o _ ft Drainage Area I .'12 ac. Impervious Area 00-14 ac. Ma)dmum Filter Strip/Buffer Slope (0. (0 % grass Max. Discharge from a 10 Year Storm (3.0 cis Max. Discharge to Level Spreader A-0 cis Filter StripBuffer Vegetation 64ASS (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for ford, leaf littler cover, 8% for thick ground cover)' (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method ia IL REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ff a requirement has not been met, attach an explanation of why. At a minimum, a complete storrnwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement An incomplete submkW package will result in a request for additional information and will substantially delay final review and approval of the project Awliic is Initials Level spreader is at least 13 it per cfs for thick ground cover or grass or 100 ft per cis in canopied forest with leaf fitter. J, Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers" If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent finer strip is hydraulically and spatially separate from the bypass discharge. No structures are located in profiled buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. A- The operation and maintenance agreement signed and notarized by the responsible party is provided. • Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass K designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in pry buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES FES - 1 I 1/17/2006 SPREADER CALCULA ................. AREA = 1.72. ACRES INOFF CHARACTERISTICS C = 0:65 FROM SYSTEM CALCS Tc= 5.10 MIN FROM SYS CALCS 110= 7.20 IN/HR 11 = 1 IN/HR Q10 = 8.0 CFS Q10=CI10A QLS = 1.1 CFS QLS=CIIA QBP = 6.9 CFS QBP=Q10-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW BYPASS NEEDED ? 14.5 LF (QLS x 13) 140 LF (FROM PLAN) 10.8 CFS (DESIGN U13) NOT NEEDED DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Project Name : Lqr 1DPr i-F- 5 scam. a ?J Contact Person: Do"I r D % - .6. 44 . T A Phone Number. (11q) 946-'554-1 Level Spreader ID: Level Spreader Length i Za R Drainage Area .2-516 ac. Impervious Area 1. 3 8 ac. Maxdmum Filter Ship/Buffer Slope ?'(/./J>I^ f.1 % grass Max. Discharge from a 10 Year Storm cfs Max. Discharge tD Level Spreader S. W Cis Filter StripBuffer Vegetation (perpendiculartD flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)' (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method 'e>`{ PASS II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. !f a requirement has not been met, attach an explanation of why. At a.minimum, a complete stonnwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully. executed operation and maintenance agreement. An incomplete submittal package will result in a. request for additional information and will substantially delay final review and approval of the project li nts i ials Level spreader is at least 13 it. per cis for thick ground cover or grass or 100 ft per cis in canopied forest with leaf fitter. a A Pre-Form Scour Holes are on flat slopes only U,A No structures are located in protected buffers' If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (N applicable) and plan details and calculations are provided DA:a Discharge tD level spreader and subsequent filter strip is hydraulically and spatially, separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. The operation and maintenance agreement signed and notarized by the responsible party is provided. ' Level spreaders in series can be used on slopes of up tD 15% in forested area with leaf littler cover or on slopes of up t0 25% in areas with thick ground cover or grass N designed according to the Draft Level Spreader Design Option Document This potentially requires a mine variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES po AREA = ........ ....... 2.88 ACRES INOFF CHARACTERISTICS C = 0.68 FROM SYSTEM CALCS Tc= 5.60 MIN FROM SYS CALCS I10= 7.07 IN/HR I1 = 1 IN/HR Q10 = 13.8 CFS Q,o=ClloA QL.s = 2.0 CFS QLS=CIIA QBP = 11.9 CFS QBP=QIO-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW = 25.5 LF (QLS x 13) ................ 1;20. LF (FROM PLAN) 9.2 CFS (DESIGN U13) 1/17/2006 BYPASS NEEDED ? YES LYNDALE SUBDIVISION FE-7 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-2-LS-MIN weir calculator Given Input Data: weir 'type ....................... Equation ...................... solving for ..................... Depth of FIOw ................... coefficient ..................... Height .......................... computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ........................... Area ......................... Perimeter ..................... wet Perimeter ................... Wet Area .................... Percent Full .................... Rectangular Suppressed Flowrate vwx F..c..? 6.0000 in 0.6000 ( o ?'r 3d * S S 12.0000 in 4.5378 cfs E Ft-0,J ?+?•??- 4.4""r 12.8348 cfs ?,{ PASS 2.2689 fps 48.0000 in 4.0000 ft2 72.0000 in 60.0000 in 2.0000 ft2 50.0000 % o k I * /Rp- = Z . b Page 1 LYNDALE SUBDIVISION FES-2 LEVEL SPREADER OVERFLOW WEIR TO CONTROL BYPASS weir calculator Given Input Data: Weir Type ....................... Equation ....................... Solving for ..................... Flowrate ...................... coefficient ..................... Height .......................... Computed Results: De th of Flow ................... Full Flow ....................... velocity ........................ width ........................... Area ......................... Perimeter ...................... Wet Perimeter ................... Wet Area .................... Percent Full .................... FES-2-OF Rectangular Suppressed Depth of Flow 5.2000 cfs 12 0.6000 12.0000 in IC) Fto.-j BY PA, SS Acc;tosS 3.1587 i n Fa,,,jp 8?1 T X# cfs' I# AL. S F.?itoZ> 1.6462 fps 144.0000 in 12.0000 ft2 168.0000 in DEQ- or- gyp, ,J 150.3174 in 3.1587 ft2 26.3227 % '61 PASS L,Jjp-t V Page 1 A FES-2-LS-10YR LYNDALE SUBDIVISION FES-2 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW weir calculator Given input Data: weir Type ....................... Rectangular Equation ...................... Suppressed suppressed solving for .................,... Depth of Fl Ow ................... Flowrate 9.1587 in ?---1X?M °'F AcczosS Coefficient ..................... 0.6000 E??. ?a?aaA 2 -J 6-t Z 1 Height ........... ... ........ 12.0000 in . o ct computed Results: Flowrate ........................ 8.5579 cfs Full Flow ....................... 12.8348 cfs velocity .................. .. . 2.8032 fps width ....................... 48.0000 i F?o..? To cs ie y? Area .......................... 4.0000 ft2 .. Perimeter ....................... 72.0000 in wet Perimeter ................... 66.3174 in $ , "Z < g•f PA") Wet Area .................... 3.0529 ft2 Percent Full .................. 76.3225 % wt,t r L. Coo b1GLt,A••J 144** 6YRASS Page 1 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Projed Name : L--wDAL4. Spa ? enf ContactPerson: ' kW%,b 4. i57h?rt4 Phone Number. ('10 1 138° 334'7 Levi Spreader ID: - ffr S Level Spreader Length Drainage Area Impervious Area Maximum Filter Strip/Buffer Slope grass (00 ft. 1.4-6 ac. Df. Fit ac. % Max. Discharge from a 10 Year Storm '? • S cfs Max. Discharge to Level Spreader 7 • . cfs Filter Ship/Buffer Vegetation j?gRA56 Pre-treatment or Bypass Method A IL REQUIRED ITEMS CHECKLIST (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. if a requiremerg has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay fine review and approval of the project. A li Initials Level spreader is at least 13 ft per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf Liter. vJ k- Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers* ff bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter ship is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erasion and vegetation repair. A The operation and maintenance agreement signed and notaized by the responsible party is provided. * Level spreaders in series can be used on sloes of up to 15% in forested areas with leaf littler cover or on slopes of up tD 25% in areas with thick ground cover or grass I designed according to the Draft Level Spreader Design Option Document. This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES 4 . FES - 3 LEVEL SPREADER CALCULATIONS DRAINAGE AREA= 1.45ACRES INOFF CHARACTERISTICS C = 0.72 FROM SYSTEM CALCS Tc= 5.10 MIN FROM SYS CALCS 110= 7.20 IN/HR 11 = 1 IN/HR Q10 = 7.5 CFS . Q10=CI10A QLS = 1.0 CFS QLS=CIIA QBP = 6.5 CFS QBP=QIO-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = 13.6 LF (QLS x 13) 19QI LF (FROM PLAN) 1/17/2006 LS MAX FLOW = 7.7 CFS (DESIGN U13) DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET PROJECT INFORMATION (please complete the following information): . Project Name : Contact Person: Level Spreader ID: Do„S %,U u. -Gft , -r O Phone Number. F".- 4 Level Spreader Length Go ft Drainage Area 3* %3 ac. Impervious Area 1.33 ac. Maximum Filter Strip/Buffer Slope % grass Max. Discharge from a 10 Year Storm ?. O cfs Max. Discharge to level Spreader (o . 3 cis Filter Strip/Buffer Vegetation Gi?h55 Pre-treatment or Bypass Method Boih6S 11. REQUIRED ITEMS CHECKLIST (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf Rder aver, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundoover) Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ffa requirement has not been met, attadr an explanation of why. At a minimum, a complete stormorater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project li Initials Level spreader is at least 13 ft per cfs for thick ground cower or grass or 100 ft per cis in canopied forest with leaf fitter. J [A Pre-Forn Scour Holes are on flat s4es only No structures are located in protected buffers* If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. NA& The operation and. maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15°% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Lend Spreader Design Option Document This potentially requires a minor valance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES rFES - 4 1/17/2006 SPREADER CAI CULA AREA = 3.13 ACRES INOFF CHARACTERISTICS C = 0.65 FROM SYSTEM CALCS Tc= 6.10 MIN FROM SYS CALCS I10= 6.94 IN/HR I1 = 1 IN/HR Q10 = 14.1 CFS Qlo=CIloA QLS = 2.0 CFS QLS=CI,A QSp = 12.1 CFS QBP=Qlo-()LS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW = BYPASS NEEDED ? 26.4 LF (QLS x 13) 90: LF (FROM PLAN) 6.9 CFS (DESIGN U13) YES LYNDALE SUBDIVISION FES-4 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-4-LS-MIN weir calculator Given input Data: weir 't'ype ....................... Equation ...................... Solving for .................... Depth of Flow ................... coefficient ..................... Height .......................... Rectangular Suppressed Flowrate 6.0000 i n LS R To 0.6000 &4 PArV5 "'E I X 12.0000 in computed Results: Flowrate ........................ Full Flow ....... .... ........ velocity ....... ...... width ........ ................. Area ............................ Perimeter .. ................. Wet Perimeter ................... Wet Area .................... Percent Full .................... 2.8361 cfs ?- L.•W&L, SIMC*P A Row 8.0217 cfs Mk1C kd`owr $-4 Pr4Ss 2.2689 fps 30.0000 in 2.5000 ft2 L 54.0000 in 42.0000 in 1.2500 ft2 50.0000 % Page 1 4 ,. LYNDALE SUBDIVISION FES-4 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW FES-4-LS-10YR for- weir calculator Given Input Data: weir Type ....................... Rectangular Equation Suppressed solving for Flowrate Depth of Flow ................... 10.2000 in coefficient ..................... 0.6000 Height .......................... 12.0000 in computed Results: Flowrate .... Full Flow ... velocity .... width ....... Area ........ Perimeter ... wet Perimeter Wet Area . Percent Full L--5 W F-t IL to'*+ 4.2" = 10 . '2 6.2863 cfs 8.0217 cfs f Lo..7 Tfl s t o yr2. 2.9583 fps 30 0000 in 2.5000 ft2 14.3 -CPS 54.0000 in ?S c?yRass 50.4000 in L 2.1250 ft2 *20 14, 1 85.0000 % l .3 CF5 30'' 1.S ,JEeiL. Page 1 LYNDALE SUBDIVISION FES-4 LEVEL SPREADER BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW weir calculator Given Input Data: Weir Type ....................... Equation ...................... solving for ..................... Depth of Flow ....:.............. coefficient .. ............... Height .......................... Computed Results: Flowrate ........................ Full Flow ....................... Velocity ........................ width ........................... Area ......................... Perimeter ..................... Wet Perimeter ................... Wet Area ... Percent Full .................... FES-4-OF Rectangular ?ca p£PT? suppressed Flowrate 4.2000 in 0.6000 12.0000 in 7.9728 cfs $.O F4.0-2? Au. VOSS $1' IKSS 38.5043 cfs 1.8983 fps 10 144.0000 in 12.0000 ft2 168.0000 in 152.4000 in 4.2000 ft2 35.0000 % wl*, Page 1 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the Project Name : L` 4 DA&Xr- 5J ibDs s Contact Person: 'ITV V L 5h • -rE Level Spreader ID:. 1:e5_,5 information): Phone Number. Level Spreader Length 100 ft. Drainage Area A ac. Impervious Area ac. Maximum Filter Stdpfik for Slope 3.? % grass Max. Discharge from a 10 Year Storm ?. D cis Max. Discharge to Level Spreader cfs Filter Strip/Buffer Vegetation Goa Pre-tneatrnent or Bypass Method g`t t?A S`? II. REQUIRED ITEMS CHECKLIST (perpendicular to few) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground covert (thick ground cover or grass, canopied forest with leaf litter groundcover) Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ff a requirement has not been met, attach an explanation of why. At a minimum, a complete stomiwater management plan submittal. includes a worksheet for. each BMP, design calculations, plans and specifications showing all BMPs and outlet stricture details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the projecL eli is itials Level spreader is at least 13 ft. per cis for thick ground cover or grass or 100 It per cis in canopied forest with leaf W. 96 Pre-Form Scour Holes are on flat slopes only No structures are located in protected buff6W If bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (iapplicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter ship is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. Ali & The operation and maintenance agreement includes annual erosion and vegetation repair- QG& operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in zone 1 of a protected buffer area. LYNDALE SUWD RIVERS ASSOCIATES AREA = 3.94; ACRES INOFF CHARACTERISTICS C = 046 FROM SYSTEM CALCS Tc= 6.30 MIN FROM SYS CALCS Ilo= 6.89 IN/HR 11 = 1 IN/HR Q10 = 17.9 CFS QIo=CIloA QLS = 2.6 CFS QLS=CIIA QBP = 15.3 CFS QBP =Q10-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = 33.8 LF (QLs x 13) 1 .0: LF (FROM PLAN) LS MAX FLOW = 7.7 CFS (DESIGN U13) 1/23/2006 BYPASS NEEDED ? YES A LYNDALE SUBDIVISION FES-5 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-5-LS-MIN weir calculator Given input Data: weir Type Rectangular Equation ....................... Suppressed solving for ..................... Flowrate Depth of Flow ................... 6.0000 in ?- EaW. DcFF. LS wEIX'To coefficient .. 0.6000 B-f PA-% ,..)g4 (- Height .......................... 12.0000 in computed Results: Flowrate ........................ Full Flow ....................... velocity ........................ width ................... ...... Area ...... ........ ... .... ........... Perimeter ............. Wet Perimeter ... .............. Wet Area .................... Percent Full .................... 3.4033 cfs 4---- LS Fem.., •j1o?r Pb-ePA4S 9.6261 cfs 2.2689 fps 36.0000 in 3.0000 ft2 60.0000 in 48.0000 in 1.5000 ft2 50.0000 % Page 1 LYNDALE SUBDIVISION FES-5 LEVEL SPREADER OVERFLOW WEIR TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW Weir Calculator Given. Input Data: Weir Type ................... Equation .... Solving for ..................... Depth of Flow .............. Coefficient ..................... Height .......................... Computed Results: Flowrate ........................ Full Flow .............••••...... Velocity ........................ Width ............. ... Area ........................••.. Perimeter ....................... Wet Perimeter ............ . .. •••. Wet Area ..................... Percent Full .................... AW Q!a Foil Lcvgt,. Z.,,. Rectangular Suppressed Flowrate 10.2000 in ---- 'D*?T* of t Ac"U*S C.S 0.6000 WElR (o''* 4 .2"-- 12.0000 in 7.5436 cfs FLO..J 9.6261 cfs ,}„ ti 2.9583 36.0000 fps in 1-7.Cl ? = ) 3.0000 ft2 .o GF5 60.0000 56.4000 in in 2.5500 ft2 85.0000 % LYNDALE SUBDIVISION FES-5 LEVEL SPREADER BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW weir calculator Given Input Data: weir Type ....................... Equation ...... Solving for ..................... Depth of FLOW ................... coefficient ..................... Height .......................... Computed Results: Flowrate ........................ Full FLOW ....................... velocity ........................ width ........................... Area .. . :..... Perimeter ................. wet Perimeter .............. ... Wet Area .................... Percent Full .................... FES-5-OF Rectangular suppressed Fowra 41 OOOtin 0.6000 12.0000 in 10.6304 cfs 51.3390 cfs 1.8983 fps 192.0000 in 16.0000 ft2 $? ?k5s 216.0000 in 200.4000 in 5.6000 ft2 35.0000 % f:LD6j "64X Page 1 ECDesign® 2003 Channel Analysis Report Project Information Last Update: 1/23/200611:31:47 AM Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: Channel Des' Channel Name: FES-5 Units: English Design Life: 6 months Design Criteria Vegetation and Soil - Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.05 Discharge (cf/s) 17.9 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil Filled No Channel Length (ft) 80 Avg. Velocity (ft/s) 2.75 Channel Side Slopes Channel ].Bend false Bottom Width (ft) 8 Required Factor of Safety Left (H:1 V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (H:1 V) 3 Outside Bead Results Avg. Flow Depth (ft): 0.64 Velocity (ft/s) Shear Stress (lbs/sgft) pass Quantity Lining Materials Computed Maximum Allowed Safety Factor Computed Maximum Allowed Safety Factor (SY) Left LANDLOK C2 2.670 5.000 1.870 1.670 2.250 1.350 Y 56.210 Bottom LANDLOK C2 2.910 5.000 1.720 1.990 2.250 1.130 Y 71.100 Right LANDLOK C2 2.670 5.000 1.870 1.670 2.250 1.350 Y 56.216 Calculation Results Flow Depth (ft) 0.640 Left Wetted Perimeter (ft) 2.020 Flow Area (ft) 6.340 Bottom Wetted Perimeter (ft) 8.000 Right Wetted Perimeter (ft) 2.020 Total Wetted Perimeter (ft) 12.040 Hydraulic Radius (ft) 0.530 Avg. Velocity (ft/s) 2.750 Composite 'n' 0.0748 Avg. Discharge (cf/s) 17.900 EC-DESIGNS 2003 page 1 1/23/2006 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Project Name : -640AL*- 506 tk j %.Skoe.S Contact Person: Dx%) t b L- SM t rN Phone Number. (!a 19 ) 840 - 55 4 Level Spreader ID:. Level Spreader Length go It. Drainage Area 4.3 ac. Impervious Area i . Zlo ac. Maximum Filter Strip/Buffer Slope % grass Max. Discharge from a 10 Year Storm 11• CO • Cis Max. Discharge to Level Spreader (A10 Cfs Filter StripBuffer Vegetation CIM (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)' (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre4reatment or Bypass Method fdoy.6 II. REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met; attach an explanation of why. At a minimum, a complete stormvwater management plan submittal includes a vwrksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details; a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay find review and approval of the project. lic i is I 'tiais Level spreader is at least 13 ft. per cis for thick ground cover or grass or 100 It per cis in canopied forest with leaf litter. 1414 Pre-Form Scour Holes are on flat slopes only X3 No structures are located in protected buffers* if bypass method specified in the Draft Level Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent fitter strip is hydraulically and spatially separate from the bypass At i discharge- &-%,a No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. MIA The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES r FE 1/2312006 SPREADER CALCULATIONS E AREA = 4 3' ACRES INOFF CHARACTERISTICS .... C = .................... 0.57 .... FROM SYSTEM CALCS TC= 5.10 MIN FROM SYS CALCS 110= 7.20 IN/HR 11 = 1 IN/HR 10 101 EA. QLS = 2.5 CFS QLS=CI1A EE QBP = 15.2 CFS QBP=Q1o-QLs LS LENGTH MINIMUM = 31.9 LF (QLS x 13) LS DESIGN LENGTH 80LF (FROM PLAN) LS MAX FLOW = 6.2 CFS (DESIGN U13) BYPASS NEEDED ? YES ECDesip@ 2003 Channel Analysis Report r Project Information Last Update: 1/23/200611:50:59 AM Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: Channel Design Channel Name: FES-7 Units: English Design Life: 6 months Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.1 Discharge (cf/s) 17.6 Vegetation Class C Req. Freeboard (ft) Flow Duration (lhrs) 0.5 J Soil Filled No Channel Length (ft) 60 Avg. Velocity (ft/s) 3.84 Channel Side Slopes Channel Bend false Bottom Width (ft) 6 Required Factor of Safety ; Left (H:1 V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (H:1 V) 3 Outside Bend Results Avg. Flow Depth (ft): 057 Velocity (ft/s) Shear Stress (lb s/sgft) Pass Q!nm Lining Materials Computed Maximum Allowed Safety Factor . Computed Maximum Allowed Safety . Factor Left LAMLOK TRM 435 3.730 18.000 4.830 2.990 5.000 1.670 Y 42:160 Bottom LANDLOK TRM 435 4.070 18.000 4.420 3.560 5.000 1.400 Y 40.000 Right LANDLOK TRM 435 3.730 18.000 4.830 2.990 5.000 1.616 Y I '1 42.160 Calculation Results Flow Depth (ft) 0.570 Left Wetted Perimeter (ft) 1.810 Flow Area (ft) 4.400 Bottom Wetted Perimeter (ft) 5.990 Right Wetted Perimeter (ft) 1.810 Total Wetted Perimeter (ft) 9.610 Hydraulic Radius (ft) 0.460 Avg. Velocity (ft/s) 3.840 Composite 'n' 0.0689 Avg. Discharge (cf/s) 17.600 EC-DESIGNS 2003 page 1 1/23/2006 LYNDALE SUBDIVISION FES-7 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-7-LS-MIN MA-X Fi-o...i To 1,S ,j/our 8K PA-SS weir calculator Given Input Data: Weir Type ....................... Equation ....................... solving for ..................... Depth of Flow ................... coefficient ..................... Height ........................ computed Results: Flowrate ........................ Full Flow .............. ....... velocity ........................ width ............................ Area ......................... Perimeter ..................... Wet Perimeter ................... Wet Area ...... ......... Percent Full .................... Rectangular Suppressed Flowrate 6.0000 in Lc OtFF Bonw",J LS t-JEAR- 0.000 HY ORSS w EA R. in 1.4181 cfs ?2 ? Q I.4 = Z. 8 c-FS 4.0109 cfs Z . S 01C 2.2689 fps 15.0000 in 1.2500 ft2 L_5 w??4n-? 39.0000 in 27.0000 in 0.6250 ft2 50.0000 % Page 1 FES-7-LS-10YR LYNDALE SUBDIVISION FES-7 LEVEL SPREADER OVERFLOW WEIR T,0 L wfL 94koi-4 WIA X (q,0 TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW weir calculator Given Input Data: Weir Type ....................... Rectangular Equation ....................... suppressed solving for ..................... Depth of Flow .................... Flowrate 9.8000 i n e-- F,-o. j pfcPrH &- L-S It- Q?o coefficient . . 0.6000 ............. ..... . Height .......................... 12.0000 in computed Results: Flowrate .......... 2.9601 cfs 5,0 4-=- 3.o LS F,o-J 6,`CA Q10 Full Flow ....................... velocity ........................ 4.0109 cfs 2.8997 fps v?na x 3.1 cFS EA. air- ........................... width 15.0000 in Area ............................ 1.2500 ft2 LS c?? t c.?..1ti'r? Perimeter .................... 39.0000 in wet Perimeter ................... 34.6000 in Wet Area .................... 1.0208 ft2 Percent Full .................... 81.6667 % (,,o L3 Page 1 LYNDALE SUBDIVISION FES-7 LEVEL SPREADER. BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW weir calculator Given Input Data: Weir Type ....................... Equation ...................... Solving for ............... ... Depth of Flow ................... Coefficient ..................... Height ......................... computed Results: .Flowrate ........................ Full Flow ....................... Velocity ........................ width ........................... Area .............. ...... Perimeter ........ ...... Wet Perimeter ................... Wet Area .................... Percent Full .................... Q?o 5q PASS tmp#35 Rectangular Suppressed Flowrate 3.8000 in e-- $I PASS WE [ 12 0.6000 12.0000 in 11.4357 cfs <- 64 1738 f P o -- 11.4 z epASS . cs 1.8056 'fps 240;0000 in 20.0000 ft2 264.0000 in -- ; 247.6000 in -5s 6.3333 ft2 31.6667 % Page 1 DWQ Project No. DIVISION OF WATER QUALITY • LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the fi Project Name : L?aDA Lf- a ?, J Contact Person: DIw %, o L- Sm ? -r information): Phone Number. Level Spreader ID: , Fe S _ t2> Level Spreader Length R Drainage Area 0.55 ac. Impervious Area 0.30 ac. Maximum Filter Strip/Buffer Slope 3. % grass Max. Discharge from a 10 Year Storm 2 • f3 dfs Max. Discharge to Level Spreader 2 • B cfs Filter Strip/Buffer Vegetation G-,?PFaS Pre-treatrnent or Bypass Method ?A tl. REQUIRED ITEMS CHECKLIST (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)' (thick ground cover or grass, canopied forest with leaf litter groundcover) initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. ffa requirement has not been met, attach an expianadon of why. At a minimum, a complete stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and. specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. A alt n Initials ti Level spreader is at least 13 it per cis for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf litter. Pre-Form Scour Holes are on flat slopes only DA al No structures are located in protected buffers* If bypass method specified in the Draft Level Spreader Design Option Document: P? Bypass method is specified (if applicable) and plan details and calculations are provided. Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. ? The operation and maintenance agreement signed and notarized by the responsible party is provided. Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document This potentially requires a minor variance in protected butler areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES rFE 1/23/2006 CALCULATIONS AREA = 0:55 ACRES INOFF CHARACTERISTICS C = .... 0.72 ................... FROM SYSTEM CALCS .. . TC= 5 OQ .. ............... MIN FROM SYS CALCS ... . I10= 7.22 IN/HR I1 = 1 IN/HR Quo = 2.9 CFS Qlo=CI,oA QLS = 0.4 CFS QLS=CIIA QBP = 2.5 CFS QBP=QIo-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH = LS MAX FLOW = BYPASS NEEDED ? 5.15 LF (QLS x 13) 80! LF (FROM PLAN) 6.2 CFS (DESIGN L/13) NOT NEEDED DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Project Name: t `frJOALrr- Sja?A,-;istorJ Contact Person: t*.S t N> L. 5 AA t T %-k Phone Number. m q) t 9) 194!6- i5154-7 Level Spreader ID: Level Spreader Length "70 ft Drainage Area O. Sfo ac. Impervious Area O. 38 ac. Maximum Filter StriplBuffer Slope ; % grass Max. Discharge from a 10 Year Storm d.0 cis Max. Discharge to Level Spreader 410 cis Filter Strip/Buffer Vegetation G"SS (perpendicular to flow) (on-site and off-site drainage to the level spreader) (on-site and off-site drainage to the level spreader) (6% for forested, leaf littler cover, 8% for thick ground cover)* (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method ??lA REQUIRED ITEMS CHECKLIST Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes. a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project Applicants itials kAX- Level spreader is at least 13 ft per cis for thick ground cover or grass or 100 ft per cis in canopied forest with leaf litter. 4 Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers* If bypass method specified in the Draft Level Spreader Design Option Document: __Bypass method is specified if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. 60 The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up fio 25% in areas with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document This potentially requites a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUB'D RIVERS ASSOCIATES SPREADER ................... NAGE AREA = p: 86: ACRES INOFF CHARACTERISTICS C = 0.66 FROM SYSTEM CALCS Tc= ... 5..30 .................. MIN FROM SYS CALCS . I1o= 7.14 IN/HR I1 = 1 IN/HR Q10 = 4.1 CFS Qlo=ChoA QLS = 0.6 CFS QLs=CI,A QBP = 3.5 CFS QBP=Qlo-QLS LS LENGTH MINIMUM = LS DESIGN LENGTH= 7.38 LF (QLs x 13) ................... ?D! LF (FROM PLAN) LS MAX FLOW = 5.4 CFS (DESIGN U13) 1/23/2006 BYPASS NEEDED ? NOT NEEDED ECDesign® 2003 Channel Analysis Report Project: Information Last Update: 1/23/20061:57:37 PM Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: Channel Design Channel Name: FES-9 Units: English Design Life: 6 months Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.07 Discharge (cf/s) 4.1 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil Filled No Channel Length (ft) 100 Avg. Velocity Qt/s) 1.67 Channel Side Slopes Channel Bend false Bottom Width (ft) 4 Required Factor of Safety Left (HA V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (HA V) 3 Outside Bend Results Avg. Flow Depth (ft): 0.43 Velocity (ft(s) Shear Stress (lbs/sgft) Pass Quantity Lining Materials Computed Maximum llowed A Factor . Computed Alt wed actor (SY) Left LANDLOK C2 1.630 5.000 1070 1.580 2.250 1.420 Y 70.270 Bottom LANDLOK C2 1.770 5.000 2.820 1.860 2.250 1.210 Y 44.440 Right LANDLOK C2 1.630 5.000 3.070 1.580 2.250 1.420 Y 70.270 Calculation Results Flow Depth (ft) 0.430 Left Wetted Perimeter (ft) 1.350 Flow Area (ft) 2.250 Bottom Wetted Perimeter (ft) 3.990 Right Wetted Perimeter (ft) 1.350 Total Wetted Perimeter (ft) 6.690 Hydraulic Radius (ft) 0.340 Avg. Velocity (ft/s) 1.670 Composite on# 0.1080 Avg. Discharge (cf/s) 4.100 EC-DESIGNO 2003 page 1 1/23/2006 DWQ Project No. DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET 1. PROJECT INFORMATION (please complete the following information): Project Name : 0 At.f- SJr't>'J'5't'0;) Contact Person: rD^0i p L- e6 t LT r-t Phone Number. 19 - 354-7 Level Spreader ID:.S -{? Level Spreader Length 46 it (perpendiCUIar tD flow) Drainage Area ac. (on-site and off-site drainage to the level spreader) Impervious Area ac. (on-site and off-site drainage to the level spreader) Maximum Filter Strip/Buffer Slope 6N -1 % (6% for forested; leaf littler cover, 8% for thick ground cover)* grass Max. Discharge from a 10 Year Storm 9 cfs Max. Discharge tD Level Spreader 10, cfs Filter Strip/Buffer Vegetation C4941155 (thick ground cover or grass, canopied forest with leaf litter groundcover) Pre-treatment or Bypass Method sq(?P" 5 REQUIRED ITEMS CHECKLIST Initial in the space provided to indictee the following design requirements have been met and supporting documentation is attached. If a requireme t has not been met, affach an expianabon of why. At a minimum, a complete sbmw rater management plan submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal padcage.wdi result in a request for additional Wormation and will substaritially delay final review and approval of the project A li is l -als t-ift I)L Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 it per cis in canopied forest with leaf ij litter. `f4 Pre-Form Scour Holes are on flat slopes only No structures are located in protected buffers* If bypass method specified in the Draft Level'Spreader Design Option Document: Bypass method is specified (if applicable) and plan details and calculations are provided Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass discharge. No structures are located in protected buffers. Plan details for the bypass and outlets are provided. The operation and maintenance agreement includes annual erosion and vegetation repair. The operation and maintenance agreement signed and notarized by the responsible party is provided. * Level spreaders in series can be used on slopes of up tD 15% in forested areas with leaf Mier cover or on slopes of up tD 25% in areas with thick ground cover or grass if designed according tD the Draft Level Spreader Design Option Document This poteritiallyy requires a minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area. LYNDALE SUITD RIVERS ASSOCIATES SPREADER CALCULATIONS NAGE AREA = 9.84'ACRES INOFF CHARACTERISTICS C = 0:59 FROM SYSTEM CALCS TC= .. 6.30 ..................... MIN FROM SYS CALCS .... 110= 6.89 IN/HR 11 = 1 IN/HR Q10 = 40.0 CFS Q10=CI,0A QLS = 5.8 CFS QLS=CIIA QBP = 34.2 CFS QBP=Q70'QLS LS LENGTH MINIMUM = 75.5 LF (QLS x 13) LS DESIGN LENGTH = LS MAX FLOW = .................. 145 LF (FROM PLAN) 11.2 CFS (DESIGN L/13) 1/24/2006 BYPASS NEEDED ? YES LYNDALE SUBDIVISION FES-10 LEVEL SPREADER OVERFLOW WEIR MAX FLOW BEFORE BYPASS FES-10-LS-MIN weir calculator Given Input Data: weir Type ....................... Equation ....................... solving for ..................... Depth of Flow ................... coefficient .................... Height .......................... computed Results: Flowrate ........................ Full FLOW ....................... velocity ........................ width ........................... Area .......................... Perimeter ..................... Wet Perimeter ................... Wet Area ......... Percent Full .................... Rectangular suppressed Flowra 12 0000 i n ?-- ?•T`''r U's ?i t Rr 0.6000 A n p ?? p/45S t?E f ?. 24.0000 in 5.3478 cfs 15.1259 cfs 3.2087 fps 20.0000 in 3.3333 ft2 68.0000 in 44.0000 in 1.6667 ft2 50.0000 % Page 1 ,e,--- 44A,/ FLOC.-? To I-EJEI. SiMMAOM 1 PP<9S L.S "a cA f- t-C j4 t A FES-10-LS-10YR LYNDALE SUBDIVISION FES-10 LEVEL SPREADER OVERFLOW WEIR pto ?MA1C G LS w -? TO CONTROL FLOW TO LEVEL SPREADER MAX 10 YEAR FLOW weir calculator Given Input Data: weir Type ....................... Rectangular Equation .. ........ ........... suppressed -7, 15 IS ?' TOT"- nof for Fow . ............... .... 191500 in Depth coefficient .. ........ 0.6000 Height ........................... 24.0000 in computed Results: Flowrate ........................ Full Flow........... .......... velocity ........................ width ........................... area ......................... Perimeter .... ....... .. wet Perimeter ................... wet Area .................... Percent Full .................... 10.7810 cfs C--" ?q K QUO ?Lfl ? 3 40 MO) 15.1259 cfs 10.8 + 2'i •'g = 404.0534 fps Lc s? cs-r) 20.0000 in <-Z? t_r,,J4T14 3.3333 ft2 -0 68.0000 in 58.3000 in 2.6597 ft2 79.7917 % Page 1 ??o ? ?f1SS LYNDALE SUBDIVISION FES-10 LEVEL SPREADER BYPASS WEIR TO CONTROL LEVEL SPREADER FLOW FES-10-OF weir calculator Given Input Data: weir Type ....................... Rectangular Equation Suppressed solving for . ........... .... Flowrate Depth of Fl ow ................... 7.1500 in ?- pp?ig- of coefficient ................. 0.6000 Height .................... . 12.0000 in computed Results: Flowrate ......................... 29.5151 cfs B`f?mss Qto Full Flow ....................... 64.1738 cfs velocity ........................ 2.4768 fps -Width ........................... 240.0000 in ?-Z 4-JG X 1.E a 4'Ti4 Area ..•.•••••• 20.0000 ft2 Perimeter ...................... 264.0000 in wet Perimeter ................... 254.3000 in wet Area 11.9167 ft2 Percent Full .................... 59.5833 % 4© cFS ti 0.8 cF5 S = 4o.3 e.FS Page 1 ECDesign® 2003 Channel Analysis Report Project Information Last Update: 1/24/2006 9:23:21 AM Project Name: Lyndale Description: City: Raleigh State: NC Units: English Notes: Channel Design Channel Name: FES-10 Units: English Design Life: 6 months Design Criteria Vegetation and Soil Channel Geometry Flow/Velocity Flow Rate (Q) Vegetated Yes Bed Slope (ft/ft) 0.075 Discharge (cf/s) 10.8 Vegetation Class C Req. Freeboard (ft) Flow Duration (hrs) 0.5 Soil Filled No Channel Length (ft) 70 Avg. Velocity (ft/s) 2.36 Channel Side Slopes Channel Bend false Bottom Width (ft) 8 Required Factor of Safety Left (H:1 V) 3 Bend Radius (ft) 0 Channel Depth (ft) 2 1 Right (H:1 V) 3 Outside Bend Results Avg. Flow Depth (ft): 0.45 Velocity (ft/s) Shear Stress (ibs/sgft) Pass Quantity Lining Materials Computed Maximum Allowed Safety Factor Computed p Maximum Allowed Safety Factor (SY) Left LANDLOK C2 2.290 5.000 2.180 1.780 2.250 1.260 Y 49.190 Bottom LANDLOK C2 2.500 5.000 2.000 2.120 2.250 1.060 Y 62.220 Right LANDLOK C2 2.290 5.000 2.180 1.780 2.250 1.260 Y 49.190 Calculation Results Flow Depth (ft) 0.450 Left Wetted Perimeter (ft) 1.430 Flow Area (ft) 4.240 Bottom Wetted Perimeter (ft) 8.000 Right Wetted Perimeter (ft) 1.430 Total Wetted Perimeter (ft) 10.860 Hydraulic Radius (ft) 0.390 Avg. Velocity (ft/s) 2.360 Composite In' 0.0874 Avg. Discharge (cf/s) 10.800 EC-DESIGNO 2003 page 1 1/24/2006 P, W co W W Q J q;c W m . OOQ W a?ZO WatZ OWW pxcn en col WI Q OL O Z4 'V J Z LAJ Q° Z ?N J O ZJ=QO ??'?CZU C t: . a Lxj `,J° ao ac p Q f4j ? C6"K W QQQQW W? Z Q ct in Q W W ? Q (n ? W J p Wppp+ZO U zz .??WW? N QZ < W ?Q PC 4j L.J z LLI ZQ _z ???Za Lai U) L Q j"K mSe Z Wa N Q o W C z J W J INSTALLATION PRODUCTS DESIGNED TO CONTROL EROSION SHOULD BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S INSTRUCTIONS. ANY MAT OR BLAWET-TYPE PRODUCT USED AS A . PROTECTIVE MULCH SHOULD PROVIDE COVER OF AT LEAST 30% OF THE SURFACE WHERE IT IS APPLIED. L APPLY LIME, FERTILIZER AND SEED BEFORE LAYING THE NET OR MAT. 2. START LAYING THE NET FROM THE TOP OF THE CHANNEL OR SLOPE AND UNROLL IT DOWN THE GRADE. ALLOW NETTING TO STAY LOOSELY ON THE SOIL OR MULCH COVER BUT WITHOUT WRINKLES -- DO NOT STRETCH. 3. TO SECURE THE NET, BURY THE UPSLOPE END IN A SLOT OR TRENCH NO LESS THAN 6 INCHES DEEP, COVER WITH SOIL, AND TAMP FIRMLY. STAPLE THE NET EVERY 12 INCHES ACROSS THE TOP END AND EVERY 3 FT. AROUND THE EDGES AND BOTTOM. WHERE 2 STRIPS OF NET ARE LAID SIDE BY SIDE, THE ADJACENT EDGES SHOULD BE OVERLAPPED 3 INCHES AND STAPLED TOGETHER. EACH STRIP OF NETTING SHOULD ALSO BE STAPLED DOWN THE CENTER, EVERY 3 FT. DO NOT STRETCH THE NET WHEN APPLYING STAPLES. 4. TO JOIN TWO STRIPS, CUT A TRENCH TO ANCHOR THE END OF THE NEW NET. OVERLAP THE END [IF THE PREVIOUS ROLL 12 INCHES AND STAPLE EVERY 12 INCHES JUST BELOW THE ANCHOR SLOT. MAINTENANCE INSPECT ALL MULCHES PERIODICALLY, AND AFTER RAINSTORMS TO CHECK FOR RILL EROSION, DISLOCATION OR FAILURE. WHERE EROSION IS OBSERVED, APPLY ADDITIONAL MULCH. IF WASHOUT OCCURS, REPAIR THE SLOPE GRADE, RESEED, AND REINSTALL MULCH. CONTINUE INSPECTIONS UNTIL VEGETATION IS FIRMLY ESTABLISHED. ko UINV BAR I joa IN CHANNELS, ROLL OUT STRIPS OF NETTING PARALLEL TO THE IArtt?Owh DIRECTION OF THE FLOW AND OVER THE PROTECTIVE MULCH *100" ANCHOR NETTING IN A 12" TRENCH JOIN STRIPS BY ANCHORING AND OVERLAPPING EROSION CONTROL MATTING PLACEMENT (NOT TO SCALE) 9 zD cL I F ?a 3 L t cc M y i 15 m k ?O Q N I. ?o acx. 3 N I k I? L Q W V ? ?- O 1 ? o v tt` LY.. 2 O? W? ?hV U N V o 0 v Q W J W Z Q / 3 ICI I?? I L 01 .J / 10 r -/ > LL e-o-A / ...000 0 / i / ?\ V/ I? I v? ?r / I / / D i i II I • ? 4 1? ry? i ?l \ \4 11 1 3 Rte- , ' v+? Y? Cr.. i 33\ ? . tA A6? \c(Ol I \\ r I r / \ 1 ?l r l ? 1 1 1 ?i ? ? I 1 1 1 .1 ?. 1 I k I I \ 1 \ 11 \ ? a I 11 1 ! I iI l I3 l ) ? ,ir i f9 YZ 6 ZZ b1S \ \\ \ I I #S.3J s / >10 ? - f \ s NIP go*, I / 1 1 1 "? \ T- I 3 AL ? ? ? 1 1 tin y p8L ,.a„ .. .. x V I ,oo I Io Ile 1 I I ? / / / I I / 1414 Q p coy y -? ? w a II a ? \ ? I I I I 3 J 7` 1 1 rFs j / I Cf' c.W o vii 1 ?7NI i \ \ cm Q7-, \ \ I Q i CEO ? I rl I ? \ I I ? .. \ \ l ? \ a \ 1 1 1?I z r /01i ¢;. / 1 I I N 1 ?` 1 lil ? 1 lid .F / J / 1 * / 0'(7 l lp 100, \ \ OL fl '? r 1XI \ \ \ \ 1, -1?0 i t a ? t? I I I o J •. 1 ? f 1? 1 / I ? I i DWQ# 2006 0 ? Plan Detail Incomplete Date '31 IS 4 ?o 11 Who Reviewed: & l S I Il a- tftf on ? Please provide a location map for the project. ? Please show all stream impacts including all fill slopes, dissipaters, and bank stabilization on the site plan. ? Please show all wetland impacts including fill slopes on the site plan. ? Please indicate all buffer impacts on the site plan. ? Please indicate proposed lot layout as overlays on the site plan. ? Please indicate the location of the protected buffers as overlays on the site plan. ? Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan. ? Please provide cross section details showing the provisions for aquatic life passage. ? Please locate any planned sewer lines on the site plan. ? Please provide the location of any proposed stormwater management practices as required by GC ? Please provide detail for the stormwater management practices as required by GC Please specify the percent of project imperviousness area based on the estimated built-out conditions. ? Please indicate all stormwater outfalls on the site plan. ? Please indicate the diffuse flow provision measures on the site plan. ? Please indicate whether or not the proposed impacts already been conducted. Avoidance and/or Minimization Not Provided ? The labeled as on the plans does not appear to be necessary. Please eliminate the or provide additional information as to why it is necessary for this project. ? This Office believes that the labeled on the plans as can be moved or reconfigured to avoid the impacts to the . Please revise the plans to avoid the impacts. ? This Office believes that the labeled on the plans as can be moved or reconfigured to minimize the impacts to the . Please revise the plans to minimize the impacts. ? The stormwater discharges at the location on the plans labeled will not provide diffuse flow through the buffer because . Please revise the plans and provide calculations to show that diffuse flow will be achieved through the entire buffer. If it is not possible to achieve diffuse flow through the entire buffer then it may be necessary to provide stormwater management practices that remove nutrients before the stormwater can be discharged through the buffer. Other ? The application fee was insufficient because over 150 feet of stream and/or over 1 acre of wetland impacts were requested. Please provide $ . This additional fee must be received before your application can be reviewed. ? Please complete Section(s) on the application. ? Please provide a signed copy of the application. ? Please provide copies of the application, copies of the site plans and other supporting information. ? Please submit electronic CAD files showing via email to ian.mcmillan@ncmail.net and CD. Mitigation ? of compensatory mitigation is required for this project. Please provide a compensatory mitigation plan. The w plan must conform to the requirements in 15 A NCAC 2H .0500 and must be appropriate to the type of impacts proposed. ? Please indicate which 404 Permit the USACE would use to authorize this project. d, rtqmm( ¦ Complete items 1, 2, and 3. Also complete item 4 if Restricted Delivery is desired. ¦ Print your name and address on the reverse so that we can retum the card to you. ¦ Attach this card to the back of the mailpiece, or on the front if space permits. 1. Article Addressed to. Lyndale Developers LLC 4509 Creedmoor Road Suite 202 Raleigh,NC 27612 DWQ# 06-0381-Johnston A. Slgrt? X Agent CM Addressee B. Received by (Pr? Name) C. Date of Deliven D. Is delivery address different from item 1? ? Yes If YES, enter delivery address below. ? No 3. Service Type ? ?R Certified Mail E>?ress Mail Registered Return Receipt for Merchandise 13 hmmw man C.O.D. 4. Restricted D* eryT Pft Fee) 0 Yes 2. Article Number (Transfer from service labeo RR11 Fchn iarv Odnd rlnmxfir Rnf1 im Qe inf 1m- UNITED STATES POSTAL SERVICE First-Class Mail Postage & Fees Paid USPS Permit No. G-10 • Sender: Please print your name, address, and ZIP+4 in this box • NC DENR Division of Water Quality 401 Oversight/Express Unit 2321 Crabtree Boulevard, Suite 250 Raleigh, NC 27604 cao (ufall???1?!{??{1?„tl:?I??Iti,?l+ltll??Ej?istl?lEl#??,,,II?! OVIL at =NV1PfV1\MCIr IAL %oulMOLIL1AIM 10, rA NC Division of Water Quality Tran # Invoice Type Date Reference 10272 030206 Invoice 03/02/06 #8936.W4 Permit App. Check Number Date: 3/2/2006 Check Amt: Balance Discount $475.00 $0.00 Q?c?r?ad?D MAR 7 2006 DENR o WATER QUALITY ,WETLANDS AND STORMWATER BRANCH 000943 943 $475.00 Pay Amounl: $475.00 s~~ / . LEGEND ~ ~ ! ~s~.~-sF - _ EXI c~va u~Er aROrEC~wri I ~ ~ ? ~ N ~ ~ ' Exlsnnlc Cl TY LIMIT • f ~ " ! LEGEND ~ , ! / •T ~ TYPICAL ~ . r ~ ExrstrNc PROPOSED i 9 T I : EDGE OF PAVEMEN ~,~,vor~vco?,srnucno?, ~ 25 rsr~13 , ~ S.TU , D~ errrwwc~xir "'d ~ i ' ~ / ' ~ ~ STORM SEWER PIPE ~ ~ ~ a , 'LIMI' ~ • ` ~ ~ ~ CATCH BASIN OR li. . ` ~ ~ - tD TEMPORARY DIVERSION . i `1 ~ • ~ LE ~I i ~ ' YARD rN T . ~ ~ ~ ~ _c~-SF~ SILT FENCE / ~ r !r ~ } ~ ~ ' ~ ~ i o° FLARED END SECTION i ~ + . ' ~ ~ I AND RIP RAP APRON - ~ r, ; + ~ ~ t 1 ! MANHDLf ' , ; . ! I ~ i ~ • ~ ~ P SAN, SEWER PI E i 1 1 ~ , f l _ i - , ' , ~r _ i ~ • ' ~ WATER MAIN • ~ , + ~r + ' f ~ i W W- AND VALVE `r • , t - °I' ;I ~ f ENT UNLESS OTHERWISE SPECIFIED C l.c I ~ + . • ~ ~ , i I , T6 ~ ANT r l HYDR 1 ~ l + r ~ • • I ~ ; I t I E HoR¢orrrAi. I ~ . ~ . ' i1 1 . I ~ r ; g ~ iwFrPaorECnori / i,'~ } i ' . ~~1~ acts "omn .1, ~ \ j \ • ~ I . ! ` ~ BLOW OFF VALVE ~ PERMANENT OUTLET : , ~ l , .o ' , + ~ ~ / / ~ * ~ ° ~ PROTEC 1. TION PROTEC ~ 1_ ~ ~ ~ ~ ` ~ CONTOUR 69 36x12 x24 CLASS 1 ,1, . . ~ " i 28 t r.... ..f.. 3s X~2 X i ~ ' }~a . RlP RA . 1~ . Vt ` NEUSE RIVER - - - - - - . RIP RAP DISSIPATOR • ; , , ~ ' j 50' BUFFER ~ ~ ~ ~ RR N ~ ~i ~ LEVEL SPREADER \ - - NT TRAP SCHEDULE ~ , ~ ~ * , ~1;~ wE~i~t TEMPORARY SEDIME / j ~ ; _ . , , ~ .l~ DRAINAGE DISTURBED REQUIRE / .~9 i~ t . _ -i AREA AREA Q70 SPILLWAY REQUIRE SURFACE ~ • i ~ ~ _ ' . ~ ~ BASIN N0. (ACRES) (ACRES) (CFS) BASIN DIMENSIONS LEN(aTH VOL (CP) ARFA ~ / ~ " / M - ~ #1 0.45 0.45 1.6 19.0 X 38.0 X 2.00 4 810 708 ~ #2 1.72 1.2 8.0 30.0 X 120.0 X 2.00 6 2160 3506 N07E 1 - , ~ ~ J ; a - . #3 0.88 0.6 2.8 25.0 X 50.0 X 2.00 4 1080 1208 - , ; ~ ~ ~ ~ i, . DIST(11~ ~ . LIMITS ~ _ _ - . ~ #4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 4 1260 1186 ~ ~ / ; ~ ~ , ' ~ ~ ¦ ~ i ~ ~ #5 2.88 2 13.8 62.0 X 100.0 X 2.00 8 3600 6023 NOlE 1 / ~ 48 RCP CULVERT - - _ ~ ~i , , • , #6 1.45 0.20 7.6 41.0 X 82.0 X 2.00 6 360 3293 NOTE 1 / ~ : , / ,a ~ _ 48 #7 0.82 0.3 2.2 22.0 X 44.0 X 2.00 4 540 962 _ , _ / / ' r ~ W/ M / o~ r~. W/NG4 #8 3.13 1 14.1 56.0 X 112.0 X 2.00 10 1800 6142 NOiE 1 / ~ #9 0.66 0.32 1.9 22.0 X 44.0 X 2.00 4 576 824 - - / , ; r" f ~ s _ _ A BLOCK ~ ~ - . SILT FENCE ~ ~ \ ~ ~ - ~ - - 1 WINGWALLS SEE DETAILS ~ - . _ _ OUTLET - _ . I i - -2 • ~ _ f i _ + ~ ~ _ _ . • _ - #10 12.2 1.7 232 74.0 X 144.0 X 6.00 RISER 3060 10110 ~ ' / , ~ _ . ~ \ ~ c #11 1.24 0.30 6.4 38.0 X 76.0 X 2.00 6 540 2786 NOTE 1 - i ' ~ ~ ~ ~ / ~ ~ . _ _ - - - - ~ . _ 1 ~ #12 4.51 0.63 18.5 64.0 X 128.0 X 2.00 12 1134 8063 NOTE 1 - - ~ ~ ~ , ' 32 : ' " , ~ I ~ - #13 4.79 1.04 22.8 71.0 X 142.0 X 2.00 12 1872 9915 N07E 1 , - ~ ~ / p'~ - - ~ :~rsr.e _ - I ~ - ~ . try \ i i• ~ ~ 1 . _ i.-- - ~ ~ - NOTE 1 -SIZE BASED ON FINAL SYSTEM FLOW / ~ ' , , ' ~ ~i i - _ ELANDS... - ~N _ 1 _ _ - - I I r; _ - _ ~i ~ ~ ~ ~ l - - - ~ + \ / ~ - gyp- - . _ 1 i ' ~ \ • \ ~ ~ , , / - i ~ i / , _ , ;i ~ ~ y . " f i ~ - - - i i \ ~ ; i ~e I ~ f N / ~ ! i ~ . ~ 0~ r i ~ . -i ~ i I ~ ~ } 'I ,x ~o - _ i• i i ~ - _ ~ ¦ ..i- o i , i i ~ i ~ . ~ 1 i~: i l ~ i i i• \ ~ ~ ors #~2 / ~ , ~ f ~ - ~p 39 - _ _ _ _ _ ~ 35, " ¦ ~ ' ~ ~ _ ~ i \ ; / a 1¦,_-- DISTU BED 4' ~ ' ~ ~ wog r~~~ ~ - ~ ~ ~ ~ ~ ~ .I~ ~ / I r~~ ;~~y ~ I t..c~"~~~i1 ~s~~~~~ ~rrwr~a~ ~~~~l.s'i~~~~s~~~~~~~~~-n'~~~r~~ SF: --TD-' o r r ~ i r .r~ ~ \ r4 ~ ~ _ , \ I v + - ` --+rr _ - ~ . - - ~ ~ - ~ / / ~ ~ I - ~ . '.SF SF \ 1 SF l . ~ ~ ~ ~r a~ ~e r >lvfie ~ l~ r~ r~ . ~ ®rlll lw +w ~ r w / ~ ~ ~ , - i ~ 1 ~ i , r ~j" ~~d'~ar+wr~r1;~/ ~ ~ 4 I / rr~`r r~~r~ir~r~r~c~~~ ~wJa1~~~~nwrr ~l ~ , ~ i i ' i ~ ,ti + ¦ ~ w, ~ ~ • ~ ~ ~ i 'i i i, ~ ~ ~ ~ i. ~ • r ( ~ ~ / ( o f y~~+srsr ~~w~~w~ rn.. • ~ i ~ i% ~ ~ ~ ~ 1 ' • • DISTURBED • ~ i ~ ~ . ~ ,~r+ i ~ ~ . i ~ I ! ~ i ~ , ~ ~ ~ ;I . ~~~,758 - - 159 747 ~ LIMITS ; • ~ ~ ~ ~ i ~ _ i ~ ~ i \ ~ . ' i i ~ o I ~ , 754 75 _ X 56 , ~~--J - ~ ~ . ~ 1 • ~ : i~ ' , `-240- ' i I ~ ~ -rt ~ i . ~ ~ ~ ? I ~ i i! I i ~ ¦ ~ N - / i~~ t ~ ~ ~ I 1 ~ ~ ~ i ~ _ . . . . . ~ I ~ , I, 1 !I! . ,1t • i i i ~I~ i S~ C~,~~ Engineers ~ •,.4•~,~,E! ° a~~ • 107 But Socoad St. 8410 Falb Ot Neuee Ad. RR#3 RR#4 RR#5 RR~Y6 RRi~7 4~$~3 .o Planners (`i •o m Siace Gnen~ille, N.C. 27858 Ralei 4, N.C, 27816 0 ds = 7.8 ds a _ ,,.2~ a _ ~ao~ a~ - •.6~ a~ - ~~.e~ PHASE - 1 EROS/ON CONTR Slope i.96% Sbpe 200% Sbpe ~ 1.15% Sbpe S.Y9% Sops ~ 3.72% ~r r 1618 (252) 752-4185 ~ Surveyors ~ (919) 848-3347 ~ D inches = 15' ~ irwMS ~ 18' D inches = ?R D fndrs 1S D intliss ~ 18' : LYNDALE DEVELOPERS, LLC GRAPHIC SCALE ~ . r $ N = 0.031 N = 0.035 N ' 0.095 N = 0.010 N = 0.095 ~ L YNDALE SU8D1 !51 owe~veioary = s.~rPs o~ue~veioay = a.arps ouus~wwa~y zeros awwwa~r = ~2erPs o~xvaomr = ~t~~w e ~ ioo ioo ~ r -PHASE 1- ~Ma ~ , z zms z Tons z Zaa z ---°-------.r Tiudmess = 12" Thickness = 18" Thidumm = 18" Thidams = 18" Thickness = 18" 5CC wi= i a run mu i ca, LAY 1[w it." EROSION CONTROL PLAN D50 3" D50 6" D50 - On D50 = 6" D50 = 6" SEQUENCE, AND DISTURBED AREA - - DATE 2~ ~t!0 Stone = A Stone = B Stone = B Stone = B Stone = B IN FUT ) CLAYTON, NORTH CAROLINA 1 inch = 50 M SURVEY JS DRAFT RIM SCALE PROJECT NO, SHEET Length = V Length = w Length = 12 Length = 7.9 Length = V Width = 4' Width = 4.5' With v Width = 4' Width = 4.9 DESIGN Sc CHECK 'p 1"= 50' 24358 5A LEGEND " TEMPORARY SEDIMENT TRAP SCHEDULE RR#10 PROPOSED EXISTING RR#8 RR#9 DRAINAGE asru~o ~~~~D IRED Q di ~ 28 da ~ Cfi = 4.0 Cfi Q d: a 40,3 ~ EDGE OF PAVEMENT A~ p~ q+o SPILLWAY RE4UIRED SURFACE 'ACE s = 5.5996 = 1.84°1(0 2949(0 Slope ~ STORM SEWER PIPE EA D inchoe = 15' D inche8 = 15' D illctlee = 30' BASIN NO. (ACRES) (ACRES) (CFS) BASIN DIMENSIONS LENGTH VOL (CF) AREA ~ CATCH BASIN OR N 0.035 N R 0.035 N = 0.035 p ~8 - Otr1101 V = 124 VelOClly = 10.7 ~ ~ YARD INLET #1 0.45 0.45 1.6 19.0 X 38A X 2.00 4 810 708 OutlelVebaty - 9.Ofp~ alodty tp~ DG NOTE 1 Zone 2 Zone 2 Zone 2 FLARED END SECTION #2 1.72 1.2 8.0 30.0 X 120.0 X 2.00 6 2160 3506 NO ~3 0.88 0.6 2.8 25.0 X 50.0 X 2.00 4 1080 1208 TlydQaii = 18' ThiCknea = 18' Thlcblea3 = 18' AND RIP RAP APRON ~ = 6' D50 = 6' D50 = 6' D50 = B = B Stone = B ~ MANHOLE O ~j StOne w xu s #4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 4 1260 1186 ¦ 7,5 Lergih s 7.5 Len~h ¦ 15 SAN. SEWER PIPE ~5 2,88 2 13.8 62.0 X 100.0 X 2.00 8 3600 6023 NO ~/g 1.45 0.20 7.6 41.0 X 82.0 X 2.00 6 360 3293 N0 #7 O.g2 0.3 2.2 22.0 X 44.0 X 2.00 4 ~ ~2 23 NOTE 1 ~ 4. 7,~ Vll~h 4 Width 93 NOTE 1 _ WATER MAIN W W AND VALVE 20~ EASEMENT (UNLESS OTHERWISE SPECIFIED) 42 NOTE 1 #8 3.13 1 14.1 56.0 X 112.0 X 2.00 10 1800 6142 N0 #9 0.66 0.32 1.9 22.0 X 44.0 X 2.00 4 576 824 HYDRANT '4 10 #10 12.2 1.7 23.2 74.0 X 144.0 X 6.00 RISER 3060 70110 86 NOTE 1 #11 1.24 0.30 6.4 38.0 X 76.0 X 2.00 6 540 2786 N0 s #12 4.51 0.63 18.5 64.0 X 128.0 X 2.00 72 1134 8063 NO NCGS NORTH #73 4.79 1.04 22.8 71.0 X 142.0 X 200 12 1872 9915 NO NAD 83 63 NOTE 1 BLOW OFf VALVE 15 NOTE 1 CONTOUR 69 N07E 1 -SIB BASED ON FINAL SYSTEM FLOW NEUSE RIVER - - - - - - - 50' BUFFER LEVEL SPREADER LlIJlVL~L PHASE 7 i ~ t s i:~o • i ~o~ ~ icy .LIti ~ MA TCH UNE ~ • ~ ~ ' X54 X55 _ ~ a~b~ S~ ~ i . . ~ ~ l i PHASE 2 ; ~ ~I p1; i _ ~ I. ~ ~ ~ • GRAVEL INLET PROTECTION A ~ I•~~ / ~ ® - - i fi ~ ~ ~ ~ ~ TEMPORARY CONSTRUCTION I ENTRANCElEXIT ~ ~ 4 ~ I / ~ --mT ' ~ x.15 ~`1 j5~ 750 ~ C ~ / ,I. ' ~ TD TEMPORARY DIVERSION ~ DITCH / ~ R' I 1 ~ _ -F~ FNE / ~ S SILT E C . ~ ~ , ,r , . ~ ~ • I ~ TEMPORARY SEDIMENT TRAP )RTH sus , \ 1 Jr 4i~i I ~ I ~ I ~ .3 NEUSE R/ DER RR#8 ~ - - I ' , ~ j~ ; + ~ r1 ? I ? • N 1 ~ ~ . ~ RIP RAP APRON (RR# ! ; °W° ) BAS/N R/PARIAN ~ ~ \ I ~ ~ I , ~ \ ? 1 I 1 ~ , ~ °°a M. I BUFFER (50) ~ ~lp~ ~ J`2' : ~ x ~ ~ / i ~ , ~ WALL t..,/ HEAD ~ ~ ' ~ ~ >w , r t, 1 ~ ~ HORIZONTAL PIPE I~ ~ q~sru ~ \ ~ 4J ~ J~O SILT•FENC ~ ,rj,3 ~ lM/T \ t O OUTLET o` ~ ~ , ~ ~ ~ TION ~ ! INLET PROTEC ISTURBED ~ ~ .l I ~ ~ IMITS ~ ~ ~ . ~ ~ . l I ~ r I \ 1 sF ~ s 1 ~ ~ DISTURBED ~ ~ ' 1 ' ~ J •t ' ' fie' , I r ~R _ ~ ~ LIMITS ~ ~ 54 3 14 . ~ ' ~ t . t` ~ ISTURBED • ~ ~ \ ~ ~ ~ LIMITS. \ ~ • ? ~t . ~ : - ~ ~ Tsr 10 ? ~ ? RISER BASIN ~ ~ • . ? TOP OF BERM = 232.0 ~ ~ ~ ~ ~ ~ ~ ' ~ .sYc r FENCE ~56 ' i ~ /-d - ~ . SEE DETAIL SHEET ~ ~ i \ \ ~ ` TST 10 SHALL BE INSTALLED 1~ ~ ~ - d ~ ~ f - ~ ~ ~ IN PHASE 2 AND MAINTAINED . a ~ THROUGH PHASE 3 r \ 'r ~ ; ~ ~ i ~ pl ~ - t ~ - ~r ` ~;Y ~ ~ ~ # . _ _ ~ ~ ~ 4 WETLANDS ~ ~ _ _ ~ ~ ~burcEr . \ ' ~ ' S_g _ . ~ \ _ " ~ . SEE SHEET 5 FOR NOTES, CONSTRUCTION \ ~ ~ - SEQUENCE, AND DISTURBED AREA _ i's~ - $ - ~ ~ ~ ~ _ ~ _ ~ ~ _ _ . _ ~ _ ~ • ~ i ~ ~ r GRAPHIC SCALE i. .i' v ~ ; 200 i ~ i ~ 50 0 50 too to6 \ / i 22 i , ~ ~ . ' ~i ? (IN FEET ) I : ~ , SlL T E E. ~ - ? ~ 1 inch - 50 ft, ~ I'' ~ ~ I _ x, _ _ `our~r' I T T ~i i ~ i ~i ~ 1 ~ # ~ \ i l NEUSE R/VER ~ASIN' c. ~ - , ~ " ` ~ ~ ~ • ~ \ r ~ ' I' ~ . I ~ i ~ - RlP~1 RIAN BUFFER (50) ~ ~ ~ ~ ! o R~.-,.. N~ ~ f O RR •119 # , \ 00x0 ~ ~ ~ En ineers ~ ~ •'a0p°°o= °ri • 9410 Frlb Of Newe Rd. ~ _ ISSt ,.,®q 107 e..t Second Sl Planners I ~ ~ ti ~ G~ Since Gnen+ille, N.C. 27859 g0,)ei`p, N.C. 27914 _ ' ' " 1618 252 752-4155 5111'VeyOrS \ • ~ < ~ l ) ole 949-3347 ' ~ ~ p ( ) \ , ~ . \ , SEMI ~ i 1 ~ ~ ~ ~ ~ - ~ VELOPERS LLC , . _ ~ L YNDALE DE , ~ ~ _ TEMP. 18 CMP BARREL 100 LF ®3.0 q ~ ,M _ ~ ~~ti•o L YNDALE SUBDIVISION ~ ~ = 0 1NV DUT = 219.00 o~ . , INV IN 222.0 ~ d r ~ -PHA S~ 2 - ~ DOWN STREAM DRAINAGE SYSTEM MUST BE a.r. ~ ~ rn u•r~ ~ ~ ~ v nnlnn T/1 t tnnrnc-~ 0i F+ K I MO IV ~ n >~u T R ~ F P L A N 11W)IALLtU 11Y111fiLL r 1-rviu!C l u Uro tnr-m1V1 DATE '1~'j (~~p v v r v . , • - • DISTURBANCE FROM FES-10 UP TO MANHOLE CLA YTON NORTH CAROLINA PLAN STRM-4 INCLUDING OUTLET PROTECTION, SURVEY JS DRAFT RIM SCALE PROJECT NO. SHEET ~ , PHASE-2 EROSION CONTROL PLAN Jp 1 = 50 24358 6 I N S H K LEGEND LEGEND PROiPOSEO £X/ST/NG EDCE OF PAVEMENT GRAVEL INLET PROiECT10N STORM SEWfR P/P£ - ~ CATCH BAS/N OR ~ YARD MLET ~ \ ~ , 11 _ , . ~ / ~ 'Rb° FNJO RIPNRAP APRON ENTRANCEfIXRNSTRUC710N '`I I . ' ¦ X240- ~ - ~ ~ ~ ~ _ 0 q q i . TEMPORARY DIVERSION " ~ ~ / ` j 9 ~ i ~2 ~ ~ ~ ~ _ 7 7 9 - - . ~ p ~ } r~ TD DITCH . ' ~ ¦ " ~ ~ ~ ~3' ; ~ ~ _ _ PHA SE 7 MANHOLE r~ 1 ~i / SAN. SEWER PIPE PHA E 7 ~ ~ ~ - _ Y / ~~tr~sw _SF-SF-- SILT FENCE , ~ I ~ I ~ ~ WATER MA/N TEMPORARY SEDIMENT TRAP . / ~ ' ~ / > ~ ~ RST*' - " ~ " s ¦ 1.1.8 _ . - 1_.0.4 ~ _ i,., PHASE ,3 w W- AND VALVE 20' EASEMENT (UNLESS O1H£RWiSE SPECIf/£O) . .I ' - ~ ~ HYIMANT y ~ ~ ~P~~o~c~, 738 Nk ~ 72 p ~ _ - -z~- - -a ~ T5T HEADWALL ~ r, i ~ 1 i _ ..~.OS 1 ~M r._ HORIZONTAL PIPE ~q~~j l , 2L~ ~ ¦ / ~q ~ - ~ ' T5T#9 ~ ' . i Z , • I I ~ ~ eiow o~ vuvE 1 ~;t -~40- ~ ~i N ~5~., ' INLET PROTECTION I ` ~ ~ . / ~ ~ ~ \ ~ r - _ r ~ NEUSE RIbER - - - _ - - _ r - _._.I__. - ~ 50'BUFfFR l~ ~ ~ ~ _ , ~ ' ~ LEL£L SPREADER SQ i 736 725 ~ I / ~ 116 ~ 706 ~ ~ . r - ~ ¦ N\ ' i ~ . TEMPORARY SEDIMENT TRAP SCHEDULE I ¦ '~3 126 ~ i o ' ~~15 ~ ~ , ~ i } : ~ 79- ~ ~ owuNAGE DISTURBED RE4UIRED ~~J 4 ~ AREA AREI? X110 SPILLWAY REQUIRED SURFACE \ '~lSTURBED ~ , ~ ~ ~ ~ / BASIN NO• (ACRES) (ACRES) (CFS) BASIN DIMENSIONS LENGTH VOL. (CF) AREA r ~ rt ~ ¦ #1 0.45 0.45 1.6 19.0 X 38.0 X 2.00 4 810 708 LlMlTS. ~ • r \ - - ~ 1.72 1.2 8.0 30.0 X 120.0 X 2.00 6 2160 3506 NOTE 1 108 i I ~ ~ ~ 0•~ 0.6 2.8 25.0 X 50.0 X 2.00 4 1080 1208 RISER BASIN ~2 - . r ~ ~~4 i ~ ~ 7$ ~ #4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 4 1260 1186 TOP OF BERM = 232.0 _ , ~ ~ ~ STUBBED i I ~so w aar e SEE DETAIL SHEET - ~ _ I r' L/ S ~ . I I t f~; ~ao\ ~ ~ / X #5 2.88 2 13.8 62.0 X 100.0 X 2.00 8 3600 6023 NOTE 1 ~TST#10 SHALL 3E INSTALLED - ~ ~ ~ \ ~ ~ ~ ~ , ~/6 1.45 0.20 7.6 41.0 X 82.0 X 2.00 6 360 3293 NOTE 1 ¦ ~ #7 0.82 0.3 2.2 72.0 X 44.0 X 2.00 4 540 962 IN PHASE 2 AIVD MAINTAINED ~ ~ ~ ' ~ _ . ¦ ~7 - #8 3.13 1 14.1 56.0 X 112.0 X 2.00 10 1800 6142 NOTE 1 THROUGH PHASE 3 - # s ' \ \ ~ O9 . ,3~i I ~ " " ~ ~ - ' " ~ #9 0.66 0.32 1.9 22.0 X 44.0 X 2.00 4 576 824 - ~ A _ - _ ~ #1U 12.2 1.7 23.2 74.0 X 144.0 X 6.00 RISER 3060 10110 #11 1.24 0.30 6.4 38.0 X 76.0 X 2.00 6 540 2786 NOTE 1 1 ~ I #12 4.51 0.63 18.5 64.0 X 128.0 X 2.00 12 1134 8063 NOTE 1 76'', . j' ~ i #13 4.79 1.04 22.8 71.0 X 142.0 X 2.00 12 1872 9915 NOTE 1 S _ I ~ . ~ i NCGS NORTH _ - _ . _ _ - ' ~ , j \ 83 131 i ~ > >i' 7 71' 1,,1 ¦ ~ ~ ~ ~ ~ ~ NOTE 1-SIB BASED ON FINAL SYSTEM FLOW ~ • ~ ~ ~ 130 s ~ f ~ 5 ~ ~ ~ ~ 1 / I i' 30' PERIMETER ~ ~ ~J _ ~ -(~j~ BUFFER EASEMENT i ~ . . ~ ~ !I ' / ~ / ' -74 / i' r /Larr ,IF~i~~aM~ ..aa ~1~~oA ~~~r~ J~ - ' 6}~ ~ ~ISTURBE , , , - - - - - 2so_ _ . I 165 ~ O ~ ~iMi rs ~ ~ . _ _ _ _ - - . ~ , 6,~ 67 6 69 7P1 71 72 . - i 0. TEMP. 18" CMP BARREL 100 LF ~ 3.0 9 ; ' 7,3 73 ~ . lNV IN = 222.00 /NV OUT = 219.00 ~ ~ i p ' SEE SHEET 5 FOR NOTES, CONSTRUCTION DOWN STREAM DRAINAGE SYSTEM MUST BE i - - _ ry ~ ! SE~UENCE~ AND DISTURBED AREA - INSTALLED INITIALLY PRIOR TO UPSTREAM / / i ~ - . ~ DISTURBANCE FROM FES-10 UP TO MANHOLE . _ - - ~SrRM-4 /NCLUDING OUTLET PROTECTION. ~ / GRAPHIC SCALE ~ < I~ ~ ' j - -r j ~ C IN FEET ) ~ ~ 1 inch = 60 tt. ~~l ~ ~ ~ 1 3 1 ~ 1 ~ PI 30'PERlMETER / ~ Q~, BUFFER EASEMENT-, ~ ~Oi ~ . i r ~ H CARO N'w g,~ i a . - ~ , p~~ -.>,~/y $ 'S~'i_~~~ Engineers ~ _ i i ~ "A EESS/py' .ti ~ JIM. ~o~ s..~ s«„a s~. euo ~.u. or N.we Ica. Planners I ~ /f~ 1 9 since cr..naw, x.c. zrase ~e~ie, x.c. ztata ~ \ L ? / ~I ~S9,~EAyL~ a 1918 (25Y) 75E-{195 (91Y) 848-35{7 $Ul'V03'OTS j ~ 5 , ; ; ~rf;l A S E - 3'EROSION COlOL PLAN I ~ . WT`fY 1' ~ \ l i LYNDALE DEVELOPERS, LLC ~ . \ ~ y*~L!'X`~` LYNDALE SUBDIVISION EROSION CONTRO L PLAN DATE CLAYTON, NORTH CAROLINA SURVEY JS DRAFT RVM SCALE PROJECT NO. SHEET si N Sc CHECK ,p 1 " = 50' 24358 7 D LEGEN RR#1 RR~2 x " control Measures - - - - _ Erosion _ . Q ds = 8.0 ds Q dsi ; 14.2 ds a ~ ~ s 1.2586 PROPOSED EXISTING All work will be done in accordance with. NCDENR. - ' - " " " 1. D ItICllee 15' D Inct~ea ° 18' EDGE OF PAVEMENT Na land disturbing activity beyond that required _ _ ~ ~ . N = 0.031 N = 0.031 to install the a ra riote erosion control measures may - - - ~ - PP P ' Ot~llet Velodht = 5.3 ~ Ottllet Velodyl a gs ~ STORM SEWER PIPE roceed until measures ore approved by the State of North Carolina. ' ' i ~ ~ Zone a 1 Zone ¦ 1 ~ CATCH 9ASIN OR droina a culverts, ~ ~ ~ - - _ 2, Following site clearing, all sediment basins, storm g - - ~ • ~ Tnt _ 1r T _ 17' ~ YARD INLET t Tro s and Pi a inlet { - ~ ~ , and structures shall be installed. Rock inlet Sedimen p P , ' ~ D50 : 3" D50 ' 3' _ ~ A o FLARED END SECTION . 1 stone - A none o droina a structures to collect surface . Protection shah be placed around al! g _ ~ ~ g AND RIP RAP APRON • Lenptlt - 5 Lenptfl 5 runoff and control siltation and release water of a gradual rate. All ~ ~ ~ ~ e storm i es are installed ~ \ . „ easements outside the paved areas whet pp ; / ~ , ' ~ • + Width = 4' Width a 4.S ~ MANHOLE Q - \ will be raded seeded and mulch / , - ~ ` , . ~ ~ SAN, SEWER PIPE ~ , , ; se laced on them for -i A \ ~ . ~ 3, Streets shall have stone p / • WATER MAIN . ~ • eded to stabr'lize the ~ ~ ~ ~ > stabilization and shoulders shall be se 1 1 ~ ~ ~ , ~ W W- AND VALVE soil. Seed bed preparation shall be conducted occordfig to North / ; ~ ? ~ „ .x • 20' EASEMENT UNLESS OTHERWISE SPECIFIE ons ortotiort Standard S ec,Fcotions for / i i~. ` ` . li 0 artment of Tr P r . ~,F 1 Caro n a ep ~ ; ~ ~ . D.O.T.. The round surface shall be i ~ / ~r j' Roods and Structures ( g r ~ % ~ 1 i e rode stakes and / i / ~r 'a • ' cleared of stumps, stones, roots, cables, wr , g / , . : , ; / / • ~ - ~ $ HYDRANT t ~ , Cher materials that mr ht hinder ro erg g, 9 - ~ ~ , ` ~ , HCa NoR1?i - \ ~ NAD B3 e t maintenance o eratians. Grades on the area ~ i' ~ ; ' / • / seedin or subs uen p i / ~ ~ ~ ~ ~ . \ . _ ~ to be seeded shall be maintained in a true and even condition. f ; / : - , , 1 ~ l • , e its to reviousl /i % % ! ~ ~ 1 ! ~ , f • ' t nce shall include on necessar r a y ~ r Morn ena y Y P A ~ ; \ - , Z~ . . ` \ ~ 1 tilled to a i % ' ` RR ~2 • + raded areas. All raded areas shall be thorough y ~ # ; \ , 9 9 % / \ ~ - I , BLOW OFF VALVE . ~ \ I 'skin harrowin Y~ ~ flit ' ~ ~ ! ~ ~ de th of at feast four 4 inches by plowing, di q, g, ~ ~ pf or other a roved methods until the condition of the soil is ~ ~ ~Mq~ / ~ ~ ~ ~ 1 PP ! re such that hi h ~ ~ ~ ~ ' ' ~ \ \ • ~ \ _ ~ t r / acceptable. On sites where soil conditions a 9 ~;1~,;,_ , ~ ~ , in ~ ~ \ ~ .R VER t and excessive cam action cause difficult in gett g r \ ~ N~USE ~ cloy con ten p Y 1 ~ , r , . \ CONTOUR 69 1SE,RIVER BASIN \ , ~ - - clods and lum s effective! pulvenzed, the Contractor shall use ~ ~ ` ' P Y , , ~ m \ \ RIPARIAN• BUf r 1 \ ARIAN~. BUFFER';(5) ~ ! r ' \ ' - a i- NEUSE RIVER - - - - - - until the mrxrn of the soil is ~ the rotary tillage machinery g ~ J ~ ; , . \ a . ~ FFER ~ ~ 50 BU r than 1 1 2 inches ~ ~ ~ acce table and no clods or clumps remain large / _ ~ ~ ~ , P ~ \ ~ ~ / fi and cam act seed bed is re uired and after / ~ \ ~ • ! ~ 4 ~ • in diameter. A rm p q TST 5 ~ , ~ ~ bein graded, the seed bed shall be lightly compacted with a land ~ ~ ~ \ - - . • ! I \ ` _ ~ LEVEL SPREADER efore and after seedin . - ` ~ • roller, such as o cultrpacker, b 9 G~ ; 1 ~ , ~ ` \ ' A' 1 1 ~ Limestone shall be dolomitic a riculture ground limestone ~ \ • ~ ~ ~ T MPaR,ARY~. GR I/EL, 40x5 E \ le s than 10 ercent ma nesium oxide. Lime shall ~ ~ ` •i containing not s p g ~ ~ ~ • r ~ ~ , be uniformly applied at the rate of 2 tons per acre. Fertilize ~ • ~ , \ ~ ~ ~ • , shad be uniformly applied at a rate of 500 pounds per acre of ~1 ~ ~ it ~ ' _ . . . C NS RUG T10N ENT ANG1 E Ell! T ; ~ ~ ` , . P `:C , f0-20-20 analysis, The fertilizer shall be incorporated into the / ~ ' ~ 1 \ ~ ~ ~ , ~ ~ , ~ ~ seed bed ust riot to the ~ ! ~ ~ ` ~ u er three or four inches of prepared / p i ~ , PP , e anon but in no case shall it be a lied more ~ - - ~ last tillag open PP ^ • \ ~ , 1 \N sed ~ _ \ , than three days prior to seeding. Fertilizer shall be u ~ ~ ~ ~ ; GRAVEL INLET PROTECTION \ / \ \ ~ I \ ; ~ 'mmediatel after deliver or stored in a manner that will not ~ ~ \ \ ~ ~ , i Y Y I , . \ \ ~ or destro its effectiveness, ~ ' ' • ~ ~ ~ permit rt to harden y ~ ~ 1 ~ ~ ~ . i I ~ \ i \ 1 1 s , When hydroseeding equipment is used for seeding, fertilizer - - _ \ \ . , \ ~ , 18 x 8 6 ALUMINUM ~ PORARY coNSTRUCTION ith seed usin the above rates ~ - - d~ ` STRI shah be applied simultaneously w 9 ~ ~ \ , DIS REED - ~ ~ STRUCTURAL PLATE ARCH ~ ; - / ~ ' ~ - ~ ENTRANCEIEXIT ed ~ ~ ' f' \ of a licotion, Seed shah be certified seed or equivalent bas ~ _ ~ , PP \ t \ 115 ~ IMJTS ~ ~ / ' ~ ' ~ \ 115.5 LF W MODULAR ~ 4? \ o th arolina Seed !m rovement Association requirements for ~ .i' ~ on N r G p ~ ~ \ I ed shall be furnished in seated standard '1 , - \ ~ ~ • Al se ~ ~ r• certification. ~ ~ • ~ BLO~ ' . \ ~ TO TEMPORARY DIVERSION BLOCK WINGWALLS ~ . ~ oITCH ' e Seed which has become wet, moldy, or otherwis ~ - - contain rs, ~ $ ~ ~ ~ shall _ . - \ SEF damaged prior to seeding will not be acceptable. Seeding ~ , SEE DETAILS ~ ~ ; \ ' \ ' .l -F ~ , t / ; I t / \ \ .-gF S SILT FENCE ith hand lancers ower-drawn lancers, hand ' % ~ : , ~ . - ~ ~ ~ ~ be accnmplrshed w p . p P \ , he f llowin rates: ' • / ~ ~ . _ \ ~ ~ , ~ ~ N / \ ~ ackers or h droseedin a ui ment at t o g _ \ = P Y 9 9 P ~ ~ \ . \ ~ - ^ ~ ~ ~ / ~ \ Y DIMENT TRAP ! o I~?' ~ \ TEMPORAR SE , 1 \ ' d ' a e easements and shoulders \ ' , Seed Bed Pre oration (Offsite rain g ~ 1 _ _ . . ' on public streets): ' ~ _ li ~ 1 \ \ ' ~ / ~l ~ r ~ - r acre / - 1 ` / ~ \ RIP RAP APRON (RR#) Lime 2 tons pe , ,1 i ~ . - ~ . Fertilizer 10-20-20 - 500 pounds per acre . ~ ~ - ~ - . , ` \ , ;WETLANDS ' =mow.- ••'t ~ t ~ Seedin Mix#ure: ~ \ ~ g ~ DISTUR ED •1. ~ i _ ' ~ ~ 1 I HEAD WALL - 31 ~ ~ ,LIMIT (January 1 March ) ~ ~ ~ • . ~ ~ ~ , a toss unhulled - 20 pounds per acre 1 00 ~ ~ - . _ Common Bermud ) ~ - ti - ~ • ~ HORIZONTAL PIPE 1 . ? \ ~ _ ~ . , , • • • . ' ~ INLET PROTECTION / . _ . (P Y ) - ~ ~ r' r 1r r ~ if i0 Ifff~tf.. _ _ _ / f ~ - - - ~ • - ontrol Pro vrsions~ - - dimenta Lion C rosron And Se E - ds er acre :I ~ ; Common bermudagrass (hulled 15 poun p 1, I . • ~ 1 - 5 ounds er acre . i'~ • ~ ' ~ ~ ~ RR~1 - ~ • Weeping Lovegrass P P ~ ~ / _ Cenci ede - 8 pounds per acre t / , / _ _ - ~ 1. ROCK INLET SEDIMENT TRAP TO BE INSTALLED ,4ROUND EACH CA TCH BASIN _ _ ~ ~ l ~ , ~ ~ AND DROP INLET AND ALL LOCATIONS INDICATED ON PLANS. - ~ ~ \ - r 31 1 ~ / ~ . ¦ fit 1ig• (August 1 Oecembe ) • 1 ~ N ~ ¦ . • - i• - - ti. \ ,i \ _ _ _ : , , \ ~ . 2. AREAS TO BE PERMANENRY SEEDED INCLUDE STREET _ ~ ~ ~ ~ \ SHOULDERS, DRAINAGE EASEMENTS Common Bermuda grass (unhulled) 15 pounds per care ~ I ~ , ? • ~ t + t6+00 Tall Fescue - 120 pounds per acre ~ ~ ~ / pp •i6+00 ' ~ ~ AND ALL DISTURBED AREAS. - 8 ounds per acre ~ ~ ~ . ~ ~ Centipede P ~ ~0 ~ / / ~ _ ~ - f0- - Z , ~ - ~ - 1 ~ ~ I - - _ t. , : i f ~ 11 STOCKPILE TOPSOIL FOR USE IN BUILDING SHOULDERS AND LANDSCAPING, •:i _ Seed Bed Protection: r , / . ~ i ~ ~ v . / ~ i * - _ - - / - ~ ~ ; ~ ~ ALL R!P RAP SHALL HAVE FILTER CLOTH / / , Straw Mulch - 2 tons per acre (visual) ~ ~ _ ~ ' . D R NER ALL BE INSTALLED IN THE QUANTITY - - - - ! - J ~ , I UN E U ,AND SH shalt Tack - 0.03 allons per square yard 1. / : - _,L _ , \ 3 _ - ~ AND LOCATION INDICATED ON PLAN. T T,~. ST 4 # c~ rY u l , : OHE MIT ,1-f-.a, try ~r.t _ - 1 I 'ip..,..-~-TD"'`• - " . 5. ADDI AONAL EROSION CONTROL MEASURES SHALL BE ' ` . t - - - ~ ~ ~ ~ / INSTALLED AS REQUIRED BY CITY ENGINEER. 4. Seed or otherwise rovide ground cover devices or structures _ , . - ~ ~ ~ f~1E / ~ M ~ _ !-ili_!f~-~.~- osed s/o es within 15 "r ' E • OHE l .,~-try' . sufficient to restrain erosion far all exp P pICA ~ ~i - se L OHE"" E - workin da or 30 calendar days of completion of any pha / ~ E _ _ - _ E--_ OHf - - ~ ~ E ~ / \ - - 6. MINIMIZE CLEARING. y' - of grading. •t; ~ ~ ~ p / j~~ ~ ~ ~ _ • ONE OHE ~ ~fi~-- ~OF1E ;x , ~ mentotion control devices shall be j ' : • ~ ~ 5. Aii erosion and sedi ; ~ , . , (1 D / ~ - J. NO PERSON SHALL INITIATE LAND DISTURBING ACTIVITY PRIOR TO S T eted b the Contractor after each rainfall. When ; , ~ . ~ . • - i ~ ~ ~ • ~ • ' ! RECEIPT OF NCDENR EROSION CONTROL PLAN APPROVAL, PROVIDE ta be reduced to 50~' of design !r ; : LI j~ ~ ~ / ; i inspection reveals the trap / ~ x , , ; , ~ ~ ~ ~ ~ ! ~ i COPY OF APPROVAL TO TOWN OF CLAYTON. i i .T. d d ~ ~ ~ ~ ~1 ice to be deficient rn its inten e / , , capacity or the dev 1 - ~ / / j1 the / ~ . / - / purpose such as fabric deterroratron for silt lences ; , ` , / ~ ~ ~i ~ ~ ' - ~ t 8, 20 X 50' X 6 THICK COARSE AGGREGATE STONE PAD TO BE ) . ~ ~ SILT FENCE Contractor shall restore the device to its original ~ ~ i i T FENCE er ~II'~~ ~ I ~ - T C STRUCTION ENTRANCE. ~ ~ ~ ~ ~ M p`~ ~ . ~ • ~ PROVIDED A ON condition, ~ i ; 1~ f _ ~ ~ OUTLET OUTLE \ - - I ~ , . - ~ 9, SEED OR OTHERWISE PROVIDE GROUND COVER DEVICES OR STRUCTURES tr 1 devices shall remark r ~ ~ ~ ~ ~ ; - s - ' ~ ' " ~ _ ~ SUFFICIENT TO RESTRA/N EROSION FOR ALL EXPOSED SLOPES WITHIN ~ All erosion and sedrmentatron con o ~ ~ , , ~ ~ • ll ~ e maintained b fhe Contractor until a , rn place and b Y - ~ ~ - , , . _ - f 1 15 WORKING DAYS OR 30 CALENDAR DAYS OF COMPLETION OF ANY construction areas have been ~ ~ : ~ , i f ~ • seeding rs established and r - ~ ~ PHASE OF GRADING. , ' / ~ stabilized. ' ~ ~ ` ~ r~ . r ~ ~ ~ : ~ ~ ~ \ I _ ~ ~ ~ A N AS NEEDED ALL EROSION ~ QlSTURBED 10. CONTRACTOR SHALL INSPECT AND MA1NT 1 ~ / , ~ ~1 r ~ / • ~ • • ~ - CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH MAJOR / ~ i ~ • ! LlMI TS PALL EROSION CONTROL DEVICES IN ~ I ! STORM EVENT, FAILURE TO KEE r ; ~ ~ ~ . :i r ~,)iL+ I ~ ~ , . - • ' ~ t ' ~ ' - - - { - PROPER WORKING ORDER MAY RESULT 1N A STOP WORK ORDER OR # ~ ~ . I r _ ~ ! ~ CIVIL PENALTIES UP TO ,5000,00 PER DAY OF VIOLATION, . ~ ~ ~ ! 11. CITY ENGINEER RESERVES THE RIGHT TO REQUIRE ADDITIONAL ~ • ~ - 1 ! ~ HE PLAN OR 1 TS " ~ - . _ _ ~ ~ EROSION CONTROL MEASURES SHOULD T ~ ~ \ ~ " ° - I IMPLEMENTATION PROVE TO BE INADEQUATE, R ~ _ M T • ~ ~i i ~ \ ^ , ~ 12. INSTALL PIPE INLET PROTECTION AT ALL PIPE INLETS, . ~ . \ ; ~ ~ - ~ ' . PHC-. N PEP. ti \ ~ i I REQUIRED ~ ~ ; DRAINAGE DISTURBED - , ~ , W ~ - J TH F~ ~V C TOTAL DISTURBED AREA ¦ 23.8 ACRES SPILLWAY REQUIRED SURFACE ~ _ . AREA AREA Q ~ ~ W . ~ 'N,'Ntlrh,9 ~ - ; N A X91 ~ - . _ . , BASIN DIMENSIONS LENGTH VOL. (CF) AREA , BASIN N0. ACRES) (ACRES) (CFS) ( ~ F ~ ~ , • - ~ , GRAPHIC SCALE 708 ~ 4 1.6 19.0 X 38.0 X 2.00 4 810 _ _ _ ~ #1 0.45 0. 5 ~ 1 ~ j sn o ss sa ioo zoa N TE 1 ~ X 2.00 6 2160 3506 0 • _ #2 1.72 1,2 8.0 30.0 X 120 0 _ S`TUR E 1208 ~ ~ ~ - 2.8 25.0 X 50.0 X 2.00 4 1080 _ LI TS ~ , #3 0,88 0.6 - 1260 1186 ~ [N FEET ` I ~ ) 4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 . _ _ _ - #4 _ . \ I . ~ ! = 50 tt, _ ~ ~ 1 inch X 2.00 8 3600 6023 NOTE 1 z ~ _ . . #5 2.88 2 13.8 62.0 X 100 0 _ \ • 1~ / ~ - ~ ,P~ 'a _ SILT FENCE ~ • c ate , . X 2.00 6 3293 NOTE 1 • 5 0,20 7.6 41.0 X 82.0 ~ - - . - ~ 1 ~ ~ ~oa~~ ,r,,'~..., Engineers 4 540 962 - ~ \ \ ~ _ • - DU TLET ~ ~ , _ _ ~ ' , ~ ! ~ ~ f,~ o ~ • 107 Beast Secoad St. 8410 Palle Of Neu,e Rd, planners .82 0.3 2.2 22.0 X 44.0 X 2.00 , #7 0 ~ doe- . _ . . ' ( ~ 1 ~ ~ F ~ x ' e .C. 27858 ~ Y ~ Since Greea+nll , N Raleigh, N.C. 27815 2. 10 1800 6142 NOTE 1 _ , ~ _ - . .13 1 14.1 56.0 X 112.0 X 00 . \ ~ , _ , _ #8 3 . ~ \ ~ ~ ~ ~ ~ 1618 (252) 752-4195 (019) 848-3347 S11rVey0rS ! ~ 6J~~•'1' ~ 22.0 X 44.0 X 2.00 4 576 824 ~ ~ . ~ ~ • ` , #9 0.66 0.32 1.9 _ ~ , _ p ~ ` ` ~ ` ! '1 a E" ~^w. ' a _ ~ •.~1e,;,t~ 4a~~~°~~' LYNDALE DEVELOPERS, LLC \ \ T ~ - 74.0 X 144.0 X 6.00 RISER 3060 10110 - - ~ r.:: ~ : . I ! ~ ~t ~ ~ ~y~~'a~0wc~ptl+ ~s #10 12.2 1.7 23.2 ' ~ . , . ~ ! E SUBDIVISION - r" , L YNDAL . ~ ~ i 2786 NOTE 1 - - ~...:;;''v .30 6.4 38.0 X 76.0 X 2.00 6 540 ~ ~ _ ~ _ #11 1.24 0 _ -a ;c 1 ~ ~ , PHASE 1- _ ~ e . n v .non v n nn ~ ~ 4 4'2A RI1R3 Nf71F ~ ~ '1. - i ~ w w w~ w• i A ~ 1 T I'1 I A/ A A/ #12 4.51 U.b3 18.0 oq.u n ico.v n c.w A~ I _ I DATE Z _ CHUSIUN C:UNI MUD rLHw #13 4.79 1.04 22.8 71.0 X 142.0 X 2.00 12 1872 9915 NOTE 1 ~ ~ • , \ ~ ` ~ , CLAYTON, NORTH CAROLINA AN tt,P,.,A-.RT 1 OF 2) SURVEY JS DRAFT RVIII SCALE PROJECT NO. SHEET P H NOTE 1 -SIZE BASED ON FINAL SYSTEM FLOW ASE - 1 EROSION COl1/TFTOL PLAN ( DESIGN CHECK JP 1 " = 50' 24358 ~ ~ f; ~ r i ~ i i ~ • LEGEND ~p.~ r~~r 'i. ~ /ii ~~~..-sF - ,Exrs aznv~ war aRO~cnor+ ' ,r-, r ~rr ~ ; EXIS ~ ~ . TING C/ TY ~ : ~ GEND LIMIT / I . LE • i ~ r ~ ~ • T ~.1 / ~~'T ~ TYPICAL - ~ • . ~ . ~ ~ p E EXISTING PRO OS D i ~ 0; 9 EDGE OF PAVEMENT N ~va~v coHS,~ucnor+ ~ 25 rs r#13 _ - - ~.rnuNC~r • 1 S.TU D : • , • I: ~ ~ STORM SEWER PIPE 1 ,1 • L1~11 ~ ~ . ~ ~ CATCH BASIN OR li , r ~ ~ ? TD''~ TEMPORARY DIVERSION ~ \ ~ ~ ~ ~ i • •.1 ~ YARD INLET i;~ . - ~ • ; ~ • ~ " o° FLARED END SECTION / , r • ~ • : ; ~ ~ ' ~ ' ~ ~ i , ~ l AND RIP RAP APRON I ~ ~ . r . 1, _gp-$F ~ SILT FENCE t . ~ ! ~ ~ r -'r , MANHOLE Q I . ~ ~ SAN. SEWER PIPE ku s ~ T~~ RARY SEDIMEN~7RAP ~ / i 26.' ~ . fr ~ , _ ~ i ~ ~ f WATER MAfN I~ ~ , ~ i ~ ~ i r RIP RAP APRON (~1 ~ ( ~ '.r , ' ' i W W- AND VALVE ' . r 1' ; ~ ' ~ ~ ;I ~ ~ 20' EASEMENT UNLESS OTHERWISE SPECIFIED) I ' ~ ~ x ~ # ~ ~ t •~I \ i, . T' # i r HYDRANT • 1 ~ J j i ' ~ ~ ' , . I ~ ~ I ~ TTT , HORIZONUL PIPE / i t /i ~ • 5 I 1 ~ i r, ' H ~SD ~TM ~ INLET PROTEC710N / ~ ~ ~ \II\ :1. , r : i . 1~ ' ~ • ~ I i ~ BLOW OFF VALVE ~!j i ~ / ' ~ ~ ~ PERMANE i~ j % / ~ 1 ° ~ PROTECT/ i ~ - /~1... / 2~ ~ J Y~`... r' 36'x12 x2 ' ~ ~ N . RlP RAP i o~ i ~ N ~ 'ERMANEN T OUTLET ' . ; , ~ , ~ I ,.p . ~ i \ r. + ~ 1 i ~ . ~ 1. t ~ i , ,f • ~ ~ CONTOUR 69 • .t 36x12 x24 CLASS 1 .1, . ~ .t , ~ . 1 - ,.V _ . 1`~~''~ ~ ~ NEUSERIVER ~IP RAP DISSIPA TOR 1 , . , , , ; _ . ~ • ' i 50' BUFFER ~ ~ ,~'RR ~ - • ~ ~ LEVEL SPREADER TEMPORARY SEDIMENT TRAP SCHEDULE j ~ ~ _ - .i. - _ `j - ~ i ~ \ . I ~ S ~ - DRAINAGE DISTURBED ~o REQUIRES ,/j ~ j ' / , 2~ ~ i a f . ~ ~ - ~ _ ~ pREq AREA Q SPILLWAY REQUIRED SURFACE / r, / / , of s .1 ~ _ • ~ l . . ~ _ ~ BASIN NO. (ACRES) (ACRES) (CFS) BASIN DIMENSIONS LENGTH VOL (CF) AREA ~ / - - ~ ~ ; • .°j - K ~ / q. 4 i.. - , #1 0.45 0.45 1.6 19.0 X 38.0 X 2.00 4 810 708 ~ \ #2 1.72 1.2 8.0 30.0 X 120.0 X 2.00 6 2160 3506 NOTE 1 ~ O : ! ~ . 2 #3 0.88 0.6 2.8 25.0 X 50.0 X 2.00 4 1080 1208 , . - 1. ~ _ _ _ - #4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 4 1260 1186 ~ / / ` ~ ~ : ~ ~ i ~ . { #5 2.88 2 13.8 62.0 X 100.0 X 2.00 8 3600 6023 N07E 1 _ / ~ / : , ' ~ L1MlTS~ . - b ~ . . 48 RCP CULVERT ..r- - ~ - ~ - ~ - _ ~6 1.45 0.20 7.6 41.0 X 82.0 X 2.00 6 360 3293 NOTE ~ _ i ~ ~ ' l } e - w/ MO #7 0.82 0.3 2.2 22.0 X 44.0 X 2.00 4 540 962 ~ . ~ ` / ~ ~ WINGWA W MODULAR BLOCK ~ _ SILT FENCE - - ~ 1 WINGWALLS SEE DETAILS q - _ -OUTLET - #8 3.13 1 14.1 56.0 X 112.0 X 2.00 10 1800 6142 NOTE 1 - / " ®r. zoo, _ : 1. - - _ - _ l - - ti.. - ~ i' 1 ~ i - ~ i \ \ #9 0.66 0.32 1.9 22.0 X 44.0 X 2.00 4 576 824 / ' / ~ , i` ~ ~ ~ * - - . - - - - #10 12.2 1.7 23.2 74.0 X 144.0 X 6.00 RISER 3060 10110 - ~ ~ ~ r... _ ~ #11 1.24 0.30 6.4 38.0 X 76.0 X 2.00 6 540 2786 N07E 1 i f ~ ( % #12 4.51 0.63 18.5 64.0 X 128.0 X 2.00 12 1134 8063 N07E 1 _ ~ / ,:32 4 ~ 1 t - _ 1 . , ~n. ~ , ' ~ i ¦ . - #13 4.79 1.04 22.8 71.0 X 142.0 X 2.00 17 1872 9915 NOTE 1 - ~ ~ ~ ~ ~ ~ ~ ~ 1 .~i- ~ o~ ' _ ~ ~ i;- _ ~ NOTE 1 -SIZE BASED ON FINAL SYSTEM FLOW / ~ ' ' s I %~I ~ E L D ~ : rT ~ r. ~ - i ~-1 I _ ~ ~ :i , - _ _ M,' ~ _ i ~ I ~ ti ~ ~ ~ ~ _ i ~ - = 1 I i / ~ X00 - _ I ~ t ~ ~ ~ ~ ~ ~ , . ~ ~ i ~ / ~ r~ 1 ~ ~ ~ . ~ i A ~ ~ , l - _ p 4 r . ' ,x ~ - ¦f is i ~ A • ~ i , I ¦ - ' _ _ • / ~ I' i , ~ ~ y. iJ i . 1 w ~ 1, - - ~ f R '7 n~ar~rrrrr~sY / - I{___TSF 7 ~j~j ~ ? 1 i' , i ~ \ h ~ o t' r i 1 ~ • ~ . i _ ~ i ~ , ~ i r~ : i ~ . ~ 1 ~ / r~~ wry ~ ~ rtr~+ sr~. a ~ 0. ¦.arrrr r®a~R~ r ~ ors .I ~ ~ o ~ ~ ~ ~ ~ / m / ~ . _ DISTL MlT3 q~o~ ~ / _ _ j ~ ~ ~ ! w - ~ rr~~~rr~~rr-ar SF: TR-" ~ - ~ .1 -Tp,4- -~-Tp+--, TD •,~•Tp ~ ~r ~ . ~b ~ , ~ / 7D~ TD TR 1D TDr T~~" TD..-.~..Tp ~ N V ~ \ / ~ rI ~ ~ti~/ `I I `~'f~ri ~r~~~ar rrrr.fi~ ~~~.Aw ,',D~~ _ ~ ~ ~ . i \ \ ~ ! l ~ , ~ ~ ~ _ i - - ~ I•• ~ - _ _ _ F SF. ~ , ~ ~ . ~ ~ i.. .ri~rrrr~r~ rwre~i~ar~i+ws, ~rw', / ~ \ ~ ~ ~ / ~ r? ~ ~ \ ~ ~t snw~". r~` ~ ~ ~ ~ - r norrrr ~ ~ , ~ ~ ~ • ~ - ~ ~ ~ ~ ~ ~ ;I , 758-- - 159 . - s ~ , s DISTURBED ~ ~ ~ ~ . ~~~rii~ ~ ~ ~ . ~ ' ~ ~ 154 755 - ~5E ~ ~ ~ -741 J LIMITS ; ~ M ~ ~ - _ r I ~ , ~ - I~ , ~ ~ if . ' i ~ 1 . I ~ - 11 ¦ I'- ~ i ~ - • ~ . ~ _ . ~ ~ ~ i i - _ _ - ~ ~ II,i l i _ V I I ' 1 ~1 ' it 1 / ~ _ - i • . ~ alto oaf fyfff . r ~ i ~ ~ ~ e ~ ~ Engine rs \7~o°~~wao°~o ~,fji ~~5~~~7 ,eg q •~a • l07 Bast Second St, 8410 YaUe Ot Newe Kd. Planners RR#3 RR#4 RR#5 RR+Y6 RR~7 B• i~°,q.~ ~ Since Groenville, N.C. 27858 ~~b, N.C, 27816 @ ~ ~ isle (z5z> r5z-41x5 /oiy\ 84s-3347 Surveyors a d. _ ~.e a. o ~ ,,.2~n o ~ - ~ao~ n~ = e.s~. Qa. - ~~.e~ PHASE - 1 EROS/ON CONTRO Slope 1.36% Sbpe 200% Sbpa 1.15% Sops S.9S% Sbpe ~ 3.72% ~O`f ~ 4 D inches 15" D inches 18' D inelas 24' D ItrJw ~ 7S D inrLSS • 18' r LYNDALE DEI/ELOPERS, LLC ~ •bf ~ r a N 0.031 N = 0.035 N = 0.035 N ~ 0.010 N 0.095 GRAPHIC SCALE ~ ~ ~ LYNDALE SUBDIVISION , Outlet Velodry = 8.t fps OWI&VNodty = BA tpa OWet Vebdly ' 77 fps OWet Valorily ~ 1281ps OdIM Vabdb ~ 17Afps o ~ goo ~ ~ ~t -PHASE 1- CONSTRUCTION cone 4AXIC _ c L71° ~p = 18' Thidu m = 18' Thickness SEE SHEET 5 FOR NOTES, Thickness - 12" Thickness - 18', Thinness 18' n D50 - 6• D50 - 6' D50 = 6' D50 = e' SEQUENCE, AND DISTURBED AREA EROSION CONTROL PLAN DATE 0(O D50 - 3 - - ER FEET CLAYTON, NORTH CAROLINA Stone = A Stone = B Stone = B Stone = B Stone = B Length = 5' Length = 9' Length = 17 Length = 7.6 Length = 9' 1 inch = 50 M SURVEY JS DRAFT RM SCALE PROJECT NO. SHEET Width = 4' Width = 4.5' Width = ti Width 4' Width ¦ 4.5 DESIGN sc HE f 1 " = 50' 24358 5A N LEGEND TEMPORARY SEDIMENT TRAP SCHEDULE DRAINAGE DISTURBED I~REp RR#8 RR#9 RR#10 PROPOSED EXISANG ACE Q ~ = 28 of: Q Ch = 4.0 d= Q df = 40.3 0l: EDGE OF PAVEMENT AREA AREA Q10 SPILLWAY REQWRED SURFACE Slope ~ 294% Slope = 5.59% Slope = 1.64% BASIN NO. (ACRES) (ACRES) (CFS) BASIN DIMENSIONS LENGTH VOL (CF) AREA ~ D indtae = 15' D inches = 15' D inches = 30" STORM SEWER PIPE p N = 0.035 N = 0.035 N ¦ 0,035 ~ CATCH BASIN OR #1 0.45 0.45 1.6 19.0 X 38A X 200 4 810 708 ~8 - ? Outld Veloaly - 9.0 ~ Outlet Velodgr 124 ipa Outlet Veioaty = 10.7 ipe ~ YARD INLET #2 1.72 1.2 8.0 30.0 X 120.0 X 2.00 6 2160 3506 N0 #3 0.88 0.6 2.8 25.0 X 50.0 X 2.00 4 1080 1208 06 NOTE 1 Zone 2 zone = 2 zone = 2 0 TtidQleee = 18' TNdubee = 18" Thidcneee = 18' oo FLARED END SECTION 08 AND RIP RAP APRON D50 = 6' D50 = 6' D50 = 6' w ~ g #4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 4 1260 1186 ~ Stone = B Stone = B Stone = B ~ MANHOLE Q #5 2.88 2 13.8 62.0 X 100.0 X 2.00 8 3600 6023 NO MI6 1.45 0.20 7.6 41.0 X 820 X 200 6 360 3293 N0 #7 0.82 0.3 2.2 72.0 X 44.0 X 2.00 4 540 962 23 NOTE 1 Lenptll 7.5 Lenplh = 7.5 Length 15 SAN. SEWER PIPE VYidtll = 4' Width = 4' Width = 7.5 93 NOTE 1 WATER MAIN M ~2 W W-' AND VALVE #8 3.13 1 14.1 56.0 X 112.0 X 200 10 9800 6142 NO #9 0.66 0.32 1.9 22.0 X 44.0 X 2.00 4 576 824 42 NOTE 1 _ 20' EASEMENT (UNLESS OTHERWISE SPECIFIED) '4 HYDRANT 10 #10 12.2 1.7 23.2 74.0 X 144.0 X 6.00 RISER 3060 10110 #11 1.24 0.30 6.4 38.0 X 76.0 X 2.00 6 540 2786 NO s #12 4.51 0.63 18.5 64.0 X 128.0 X 2.00 12 1134 8063 NO NCGS NORTH ~3 4.79 1.04 22.8 71.0 X 142.0 X 2.00 12 1872 9915 NO NAD 83 66 NOTE 1 ~3 NOTE 1 15 NOTE 1 BLOW OFF VALVE CONTOUR s9 N07E 1-SIB BASED ON FINAL SYSTEM FLOW NEUSE RIVER - - - - - - - 50' BUFFER LEVEL SPREADER PHASE ~ 1 ~ II rr~~. LIIJ !VIAL j~ 1:10 ~ ~ ~ ~ ~ ~ 1 754 155, , . _ 1 ~6' , ~ -LIti ~ - , MA TCH L /NE -I i ' ~ I ~ - PHASE 2 i i ~i~ ~ ~ - ~ 1 r - I i ~ ~ ~ ~ ~ ~ I~ . ~ . i ~ 45 I w o ,46 'off I fl GRAVEL INLET PROTECTION / ~ ~ ; ' ~ Y ~ a a ~ 1 ' i~ . ~ / i~ ~ i TEMPORARY CONSTRUCTION . I ' ~ ~ i 4 ENTRANCElEXIT / ~ STD f ~ ` ~ ~ ~ , ' ~ ~ . ~ ~ ~ t : ~ r x.15 7`57 750; ~ ~ ,i. ~ TEMPORARY DIVERSION ~ ~ tD f , ~ I~ ~ aITCH / ~ ~ . - 1 ° ~ rs l o ; ` a .7'49 ' ~ ~ ~ _~-SF~ SILT FENCE ~ ~ ~ I ~ ~ TEMPORARY SEDIMENT TRAP )3 T NEUSE Rl DER RR#81 -z-- ~ - ,,gyp • s+ ; s~ ~ ' S ~ ` • , ~ , ~ / ' ~ ~ ST# R ) ~ ~ ~ ~ BASIN R/PARIAN ~ ~ ~ I ,~f' ~ ? \ ? ~ ? r, , ~ ~ BUFFER (50) ~ Qr ~ 52' 1 I . I ! ~ ~ / ~ ; w RIP RAP APRON (RR#) / ~ o0 I o0 0 ~ I ~ . ~ 1 . I ~ ~ V HEAD WALL , ~ . ~ ~ 1 ' 1 ~ I ~ ~ HORIZONTAL PIPE ~ \ ~ i ~ \ \ ~ ~~~s lSTU ~ \ 4~9 50 ~ sic r. FEnic ~ 53 ' ~ r~lMITS IS REED . l TU ~ ~ INLET PROTECTION .r ~I . IMI TS ~ # ~ ~ \ < OUTLET ` ~ ~ , . ~ ! r ~ ' ` ~ ~ ~ ~ ~ DISTURBEp I o4 ~ ~ ~ \ s ~ ~ ` ~ ~ ~ • ~ / ISTURBED \ ~ \ , ' \ L1MlT~ ~s,~ \ I - 1 55 • ~ \ ~ dT ~ ~ ' ~ . .r ' rsr#lo r . ' ~ a RISER BASIN ~ . ? ' , ~ TOP OF BERM = 232.0 L T FENC ~ ~ ~ ~ . SEE DETAIL SHEET ~ ~ ~ - 6 ti ~ ~ ~ ~ ~ - TST 10 SHALL BE INSTALLED ~ ~ ~ - ~ ~ ~ IN PHASE 2 AND MAINTAINED - ~ THROUGH PHASE 3 ~ \ _ " ~ w .i~ _ -art ~ ~ ? ~ _ ~ ~ ~ WETLANDS i ;.i.. I \ ~ _ SILT F£NGE ~ ~ ~ ~ ~ ~ - ~ . _ . . • - ~ ~ . ` \ SEE SHEET 5 FOR NOTES, CONSTRUCTION ~ 1if? ~ . _ ~ ~ SEQUENCE, AND DISTURBED AREA \ - - is ` 4 ' ~ ~ ~ 11~ - - ~ - / / ~ ~ ~ GRAPHIC SCALE ~ ~ - ~ / ~ 0 ~ ~ 50 0 50 f00 100 2 \ y / 22 41r r~ . t, ; . ~ E (IN FEET ) / ~ ~ T, ~ / ~ _ ' 1 inch = 50 ft, / ~ r I ,(y / ~',y, ' ~ \ DUTC€T T / / 'i l ~t I''. ` _ I~ \ / NEUSE R/VER ASIN' ` ~ _ \ \ ( \ . , ~ . , . I ~ / , , _ _ . - RIPARIAN BUFFER~(50) ~ ~ ~ . N N , ~ ~ p i ' . o RR •~19 ~ ~ ~ ~ . ~ ~e,NUNa~,~r • ` ~ at~l C Rai Engineers " LSS! 'b. q • 107 lia,t second St. 8410 Palle of Neu,e Rd. Planners ~ _ ~ ` Since Greenville, N.C. 27958 Ralei b N.C, 27815 1 1 ~ r is i ' ~ • ~ ~ 1918 - SurVe ors ~ ~ ~ ~ ~ ~ (252) 752 4195 (918) s4e-sa47 Y I SEAL ~ ~ ' - - ~ 2i~744 VELOPERS LLC ~ TEMP. 18 CMP BARREL 100 LF ~ 3.0 ~ LYNDALE DE , .a ~ _ ~ !NV IN 222.00 INV OUT 219.00 y ,a,•~ LYNDALE U B D . ~ OW -PHASE 2- . , - _ ~ D N STREAM DRAINAGE SYSTEM MUST BE „ , DATE ~~~~0 CLAYTON, NORTH CAROLINA PHASE-2 EROS/ON CONTROL PLAN LAN ''INSTALLED INITIALLY PRIOR TO UPSTREAM EROS / O N CONTROL P L A N DISTURBANCE FROM FES-f0 UP TO MANHOLE ~ S7RM-4 INCLUDING OUTLET PROTECTION. SURVEY Js DRAFT RW SCALE PROJECT NO. SHEET ~ 1 i~ . I DESIGN 1" = 5024358 x CHECK 6 LEGEND PROWOSED EX/ST/NC LEGEND EDGE OF PAVEMENT S7ORM SEWER P/P£ GRAVEL INLET PROTECTION ~ CATCH BAS/N OR ~ YARD ML£T ~ I~ - ~ FLARED END SECDON TEMPORARY CONSiRUCT10N I , ~ I ¦ '-240- ' - ~ - ' I ~ I o ANO RIP RAP APRON s ~.3 ~~o~ - " 739 1 122 i ~ ' .i 779 ,i j. tv DITCH - ~ - ~ - - - - r - ~ _ _ PHA SE 7 ~ MANHOLE Q- + / SAN. SEWER PIPE 117 i ~t ~ 6~ ~ oa ~ - ~ ~ WATER MAIN -PHA E , ~ ~ ~ r . _ d r~..... i _ _-W ---W- AND ?ALVE -SF-SF ~ SILT FENCE . , ...~>~Ar TEMPORARY SEDIMENT 7RAP / i' ` ~ ~ A r } ~ ~ ~ PHASE 3 20' EASEMENT (UNLESS OiHERW7SE SPEpREOJ I'" ~ ~ HYDkAN7 ~ 138 ~ 12 R = ~ Zl-8 _ _ 1.0.4 _ . _f _ ~ . e,.. r ~ ~ _ s TST; ~ wa w,a ,e,Pr~ .N ~ R ~ _ _ -zso- - - - -a T5T#9 ~ ~ y i q. ~ ~I HEAD VYALL / / ~ ~ ; " • _ \ + w~ T - ~ E i - _ . f-05 . 1`,0 -uw- ~ HORIZONTAL PIPE ~ 124 ~ p ~ ~qq -7 * ~ ~ j , i,0~. ~ ~ INLET PROTECTION ~ ~ . ' ~ ~ ~ / / ~ ~ a ~ ~ _ l i~ NEUSE Rll~£R ~ I 50' BUffER - - - - - _ - ~ r , s - r ~ ~ 4 ~ B~'. LE4£L SPREADER Q . _ i / UO p ~ ~ , \ t, , 136 725 ~ I / ~ 116. 706 ~ M\ ~ f , I ~ +r . ~ - .c , TEMPORARY SEDIMENT TRAP SCHEDULE ' ~ ~ ¦ ~Y, t 79_ - DRAINAGE DISTURBED REQUIRED 126 0 o ' 1,~5 ' ~ ~ ' i ~ AREA AREA Q10 SPILLWAY RE4UIRE0 SURFACE ~13~5 ' I e. ~ ~ s BASIN NO. (ACRES) (ACRES) (CFS) BASIN DIMENSIONS LENGTH VOL. (CF) AREA / #1 0.45 0.45 1.6 19.0 X 38.0 X 2.00 4 810 708 LIMITS. ¦ ~ A ~ t: #2 1.72 1.2 8.0 30.0 X 120.0 X 2.00 6 2160 3506 NOTE 1 TSTJ~10 - _ ~ ~ ~ , ~ f~8 t ~ ~ i._, i , 7$ ~ / / #3 0.88 0.6 2.8 25.0 X 50.0 X 2.00 4 1080 1208 RISER BASIN ~ Z ~ ~ ~ ~ 4 ' ~ ~ t \ #4 0.79 0.7 2.7 25.0 X 50.0 X 2.00 4 1260 1186 TOP OF BERM = 232.0 _y ; ~ ~ ~ STURB~D ~ ~ As w xu e SEE DETAIL SHEET ~ - I ~ ! , LI S , , I I ~ ~ ~~~o\ / / #5 2.88 2 13.8 62.0 X 100.0 X 2.00 8 3600 6023 NOTE 1 ~/6 1.45 0.20 7.6 41.0 X 82.0 X 2.00 6 360 3293 NOTE 1 ~TST#10 SHALL BE INSTALLED ` ~ ~ ~ ~ #7 0.82 0.3 2.2 22.0 X 44.0 X 2.00 4 540 962 IN PHASE 2 AND MAINTAINED - ~ ~ I ~ , ¦ ~7 ' ' " #8 3.13 1 14.1 56.0 X 112.0 X 2.00 10 1800 6142 NOTE 1 ? THROUGH PHASE 3 ; _ , \ \ ~ O9 , ' # ~ I ~ ~ ~ O _ - ' ~R9 0.66 0.32 1.9 22.0 X 44.0 X 2.00 4 576 824 - - } ~ ~ #70 122 1.7 23.2 74.0 X 144.0 X 6.00 RISER 3060 10110 fl ~ i' I } f A - ~ #11 1.24 0.30 6.4 38.0 X 76.0 X 2.00 6 540 2786 NOTE 1 1 ~ I #12 4.51 0.63 18.5 64.0 X 128.0 X 2.00 12 1134 8063 NOTE 1 wit, • ~ I - ~ I ~ 1~ 76'', t ~ ~ #13 4.79 1.04 22.8 71.0 X 142.0 X 2.00 12 1872 9915 NOTE 1 ~ ~ ~ S _ _ _ NCGS NORTH - ~ ; k ~ ~2 ~ . i , \ ~ ~ ~ ~ / N07E 1 -SIB BASED ON FINAL SYSTEM FLOW 83 .131 ; ; ~ . `771. 1,1 . ~ ~ \ t ~ ~ , } r " 130 ; , - ~ ~ ' ~94~ ~ r . s \ - -j : Ij f \ ~ r; ~ ~ ' Y' / ~ I I ~ 30' PERIMETER -('j~ BUFFER EASEMENT i _ . / , / ~ ~ .~j ~ / s ~ ~ ~ -74 / . , / r~~~~r yr~~rr rr~~~ r~fii~M~ ~~1i~tia.M ~~~f~~~ r~~r~ ~ i l i i t; 26 l ' _ _ UMIT~ 65 ~ 6,6 ~ 67' ~ .69 ~ 7C~ 71 72 , . _ - 73 TEMP. 18" CMP BARREL 100 LF ~ 3.0 9 / / - - lNV IN = 222.00 /NV OUT = 219.00 i ~ , ' / I' SEE SHEET 5 FOR NOTES, CONSTRUCTION . ry ~~i, SE~UENCE~ AND DISTURBED AREA " DOWN STREAM DRAINAGE SYSTEM MUST BE ' - ~ 1NSTALLEO lNITIALL Y PRIOR TO UPSTREAM / / . -_~r j~ DISTURBANCE FROM FES- )0 UP TO MANHOLE - - - - ~ ~ STRM-4 /NCLUDING OUTLET PROTECTION. ~ l -7----------------~--•`--- GRAPHIC SCALE o ~ a~ - - \ ~ - j, ~ C IN FEET ) '~j ~ ~ - ~ ~ ~ ~ 1 ioc6 = 50 fl ~ ~ I ~ ! I ~ I ~ ! ~ Q~ ~ ~ ~ 30' PERIMETER ~ ~ ~ D i ~7 ~ ~ BUFFER EASEMENT-, ~ ~ ~ ~J Dl ! p~SNCARp(~ry, eBOCIa~$B~ Engineers ~ ~ ! ~~A EESSlpy'+y'o ~ im s..~ s.~ooa s~. e~io ?.a. a Nww aa. j ~ ~ ~ since ccesn.m•, t+.c. z7ess p~7e~~p, N.C. E7016 P~8°nere ~ ~ 2 ~ ~ ~I s SEAL late (zsz) osz-uss (ply) ~e-yy~~ Surveyors ~ ~~l A S E - 3 ~'EI~OSION CONTROL PLAN i~ ~ ~ ~ LYNDALE DEVELOPERS, LLC ~ t y~yrp L YNDALE SUBDIVISION % 5i ~ ~ ' ~ p -PHASE 3- EROSION CONTROL PLAN DATE oG 2-7- CLAYTON, NORTH CAROLINA SURVEY JS DRAFT RVM SCALE PROJECT NO, SHEET DESIGN Sc CHECK -P 1 " = 50' 24358 7 LEGEND RR#1 RR#2 N 4 ~ = 8.o c~ Q d>s " 14.2 ~ Exis riNc fro/ Measures - - - - _ _ _ soon Con , Ero - _ ~ ~a~ PROPOSED Slope = 1.0096 Slope D IIICIIOt = 15• D 111Che6 ° 18" EDGE OF PAVEMENT 1. All work will be done in accordance with NCDENR. _ _ ; t r wired _ No land disturbing activity beyond tha eq ' N ~ 0.091 N = 0.091 to install the appropriate erosion control measures may • ~ Olldat Velodgl = 5.3 ipe OWet Velodly ° 6.61pe STORM SEWER PIPF Zg10 = ~ Z4ne ¦ 1 ~ CATCH BASIN OR ntil measures area roved by the State of North Carolina. , ~ _ + , proceed u PP . ` i I , • ThICk1108f ¦ 12' Tlydaneets = 12' ¦ YARD INLET ~ lverts ~ - - 2. Fallowin site clearing, 011 sediment basins, storm drainage cu 1 ~ ~ ~ • g D50 9' o 'sailed. Rock inlet Sediment Traps and Pipe inlet and structures shall be rn t r . _ e A ° FLARED END SECTION . J ${qk - A Stone ° AND RIP RAP APRON , 0 5, L011~11 ~ ~ RAl B drains a structures to collect surface _ - • , ~ , Protection shall be placed around al! g 1 ; ; . ~ a radual rate. Al ' / ~ / ~ r • ~ siltation and release water at g i - . l runoff and control - , ' / \ , `"`'~..w,,, , (side the aved areas where storm pipes are installed ~ ; / easements ou p ."~-i_,~ , ' •a = a4' Widlh = 4.5' MANHOLE 0 . . ~ ~ Wkllh ~ 11 6 raded seeded and mulched. / • , ~ SAN. SEWER PIPE • ~ WATER MAIN ~ ii/ . \ ~ \'t ~ ti W W - A VE AND V L f' stone base laced on them for / --Lr. ~ • 3, Streets shall have p /r / 1 stabilize fhe i ' ~ ~ ~ bilization and shoulders shall be seeded to , j•' ; ~ l sta to North ~ • / / ~ ' ,f ` soil. Seed bed preparation shall be conducted accardrng ; . ; i : 1 - , 20' EASEMENT (UNLESS OTHERWISE SPECIFIE } \ or ' / ' i ~ ~ i , ecificahons f ,r v ons ortotion Standard Sp i . ~ - ~ . Carolina De ailment of Tr ~ , HYDRANT \ S .0. T. the round surface shall be F / ~ ~ , i~, ' ~ 1' , Roods and Structures (D 9 . ode stakes and i . / 1 • • ' t ~ NCGS NORTH cleared of scum s, stones, roots, cables, wire, gr ~ / ; . ; , ~ , mi ht hinder ro er grading, tillage, / , ; ; ~ ~ ~ ; 0 other materials that g P P / • ' \ ~ Na1D B3 s on the area / , / / , ce o erations. Grade i.. _ • ~ ' ~ seedin or subse vent maintenan p / ; ; ; ; , , / r1 , g q rue and even condition. : ! . , ' / \ ~ ` ~ a t intained in ' ~ r / i. ~ , to be seeded shalt be ma / , i• ; , y ~ 1 + ~ I , reviousl i ~ ~ ~ • 2~~ ~ \ . Maintenance shall include any necessary repairs top y ~ / L / ~ , a a ~ RR 2 . ~ ~ \ horou hl b • ~ , I raded areas shalt bet g y ~ ; • , 1 ' ~ BLOW OFF VALVE I / raded areas. At g + ~ + , de th of at least four 4 inches by plowing, disking, harrowing, .i~ p ` ~ ~ ~ \ i . - • \ ~ ; • \ _ .1-- i • a raved methods until the condition of the soil is e$ ~ 1NF~ or other pp \ \ , ~ ! ~ CONTOUR 69 here soil conditions are such that h g : , acce table, On sites w 1 ; ~ ~ \ ~ , \ NEU$E,R~VER P , ASIN ~ \ - JSE RIVER B ~ ~ clo content and excessive compaction cause difficulty in getting 1 , ~ r ~ ~ ; y r ctor shall use T ~ ~ i RIPARIAN. BUf i \ - - NEUSE RIVER - - - - - - - ARIAN•. BUFFER': 5 clods and lumps effectively pulverized, the Canto ~ ~ + ~ ~ ~ ~ , tar tills a machiner until the mixing of the soil is ) ~ , fhe ro y 9 Y ~ i ~ \ , ` ~ \ ~ ~ ~ 50' BUFFER i acce table and no clods or clumps remain larger than 1 1/2 inches ~ • , , P and after ~ j ~ \ ~ \ ~ ~ w/ VEL SPREADER . I LE 1 \ ~ , A firm and cam act seed bed is required TST in diameter. P ~ l _ om acted with a land 6 ' \ ~ . • ~ I ti • \ ~ A ~ seed bed shall be tightly c p ~ + \ , bem raded, fhe 9 9 C 1 before and after seeding. ~ ; , roller, such as a cultipacker, x. ` \ • I ~ ' , ~ _ Imestone shall be dotomitic agriculture ground limestone ~ L ~ ~ 'i . ~ ~ MPr~1R,ARY~. GR l/EL, T ~ 4p x5 E \ shall ' r not less than 10 ercent magnesium oxide. Lime ~ , contain ng P ~ ~ . v + ` \ • • ON EN3 ANGLE E~11 T CANS RUGTI be uniformly applied at the rate of 2 tons per acre. Fertilizer , i 1 00 ounds er acre of ii1 N ~ ~ ~ •1.... - - ' ~ - - ~ ~ , shall be uniformly applied at a rate of 5 p p / ~ `;C \ , tad into the - 0-20 anal sis, The fertilizer shaA be mcorporo / ~ a~P • ~ , 10 2 y I ~ . . • \ \ , ~ , ' c es of re ared seed bed just prior to the , ' ' _ • u er three or four rn h p P \ , PP 't be a lied more ~ ~ ~ ~ \ • ~ \ 1 \N • \ ; ' GRAVEL INLET PROTECTION ' no case shall i PP I • ! . last tillage operation, but rn I ~ • • d - 1- _ ~ ~ , , \ +P \ ~ , / \ 1 \ ; ~ than three days prior to seeding. Fertilizer shall be use ~ ~ \ ~ \ ediatel after deliver or stored in a manner that will not ` ~ • , / ~ ~ \ ~ i ' it to harden or destro its effectiven ~ ~ 1 . ~ ~ ~ \ ~ ~ ~ 18 fertilizer ` 8 ~ ~ • 18 x 8 6 ALUMINUM ~ ~ : ; ; ~ ~ \ \ TEMPORARY CONSTRUCTION - X DIS RB~D -f ~ \ ENTRANCEIEXIT i ment is used for seeding, ~ p • When hydroseeding equ p ~ . _ STRI ~ _ . ates 1 , 'STRUCTURAL PLATE ARCH . - - / ~ i ~ • I JTS ~ l ~ - ~ i \ ~ e a lied simultaneously with seed, using the above r :l r \ , shall b PP ~ ~ • aced ~ _ Seed shall be certified seed or equivalent b ~ \ ~ i' 115.. of ap Ircatron, \ ~ , 115.5 LF W MODULAR ~ ~ ? i,;r \ I \ ~ 'f0 TEMPORARY DIVERS ON p irements for - ~ ar lino Seed !m rovement Association requ ~ ~ ~ , on North G a P - \ \ ~ r. BLQ ~ / BLOCK WINGWALLS ~ . : ~ DITCH • • 1 be furnished in sealed standard 1 ~ ~ ~ i _ certrficatron. Al se ~ ~ \ , mold or otherwise , ~ SEE 1 ~ ~ ~ ~ SEE DETAILS ~ ' \ ~ , con tamers, Seed which has become wet, y, • ~ - ~ • • ~ _ all y ~ - ` ~ 1 I dams ed prior to seeding will not be acceptable. Seeding sh ~ • • \ _ F-SF SILT FENCE i~ / S / , I ~ t rs hand ~ be accomplished with hand planters, power-drawn plane : ~ _ _ _ _ , i` ~ _ ~ r i ~ - ~ ~ . ~ \ TEMPORARY SEDIMENT TRAP ckers or h droseedin equipment at the following rates. ~ , ' ~ _ , , \ ~ , pa Y g ~ \ I - . ,rST r . ~ \ # ~ _ 1 \ Seed Bed Pre oration Ofisite drainage easements and shoulders _ 1 ` . ' 1~ , P e is ~ \ it on ublic str a - 1. , P ~ ~ ~ ~ v \ . \ \ a , ~ RIP RAP APRON (RR~) ' 1 1 ~ ° l \ o o ~ Lime - 2 tons per acre ~ ~ ;1 i ~ - : . ;.WETLANDS _ r acre ~ _ - _ Fertilizer 10-20 20 500 pounds pe ~ . ( ~ / ~ ~ . 1 I ~ . \ ~ , • r,.;;•: ~ ~ ? HEADWALL i / • . ' seedin Mixture: ~ DISTI~RQED ~ _ _ _ , g ~ 1 \ I ~ ~ . l _ - LiMiT r . _ _ . - . _ V • • , ~ \ HORIZONTAL PIPE January 1 March 3f) 'i' f / 2 ~ ' \ . ~ , ~ I T PROTECTION - 20 ounds er acre ~ - ~ ~ da rass unhulled) P p ' I ~ / ~ ~ _ , • _ Common Bermu g ( I ~ . ~ Tc~• 2' . ' - - - . ~ i ~i ~ - r (April 1 -July 31) ~ _ - - - n rol P~ ov?s~ons of afion C dement - n And Se _ _ Eros~o ~ _ ' ~ :C ; Common bermudagross (hulled - 15 pounds per acre r ; • ~ ` l• ' i - . RR~1 - - 1N - 1. ROCK INLET SEDIMENT TRAP TO BE INSTALLED AROUND EACH CATCH BAS - 5 ounds er acre . r ~ r ~ ~ _ - Wee in Love rass P P ~ / - P 9 9 ' 'y ~ ~ - - - - - - ~ AND DROP INLET AND ALL LOCATIONS INDICATED ON PLANS. _ ~ ~ ~ enti ede - 8 pounds per acre 1 ~ , ; ~ + _ _ ~ _ - (August 1 December 31) ; 1 $ ~ MI ~ ~ , ~ ~ LODE STREET _ , , \ 2. AREAS TO BE PERMANENTLY SEEDED INC ? / ~ SHOULDERS DRAINAGE EASEMENTS ' ~ AND ALL DISTURBED AREAS. da rass unhulled) - 15 pounds per care ~ r I - y 17t - - •t6+ Common Bermu g ( ~ / ~ - 120 pounds per acre \ ~ / / ~g+ ~ Tall Fescue - 8 ounds per acre i ~1 ` ' • ~ ~ . ' l U- Cenci ede P ~ / , / ~ ~ _ P ~ o l - - - ~ ~ ~ 1 i \ - ~ N SOAPING, _ _ 1Q~_ - - . r ~ ~ ~ 11 3, STOCKPILE TOPSOIL FOR USE 1N BUILDING SHOULDERS AND LA D I ~ . _ ~A . • ~ - ~ ~ ~ 4, ALL RIP RAP SHALL HAVE F/LTER CLOTH Seed Bed Protection: ~ ! ~ i - - • ~ ~ 1 _ _ • . UNDERL/NER, AND SHALL BE INSTALLED IN THE QUANTITY i•~ - r acre visual ~ , ~ - - Straw Mulch 2 tons pe ( ) ~ f ~ _ r and / ' _,L ~ ~ - Asphalt Tack 0.03 gallons per squa e y _ ,t ~ / - _ \T T 3 - AND LOCATION INDICATED ON PLAN. ~ ST 4 . - 1 T1NG CJ /a+E ~ ~ - , ' + • ¦ .rye ~T~. f - ~ 5, ADDIl10NAl EROSION CONTROL MEASURES SHALL BE e. - - - - TM~' e>r' ~ ~ ~ ~ ~ / INSTALLED AS REQUIRED BY CITY ENGINEER. or structures / - .J;L % ~ ~ ~ ~ / ~ - ~ 4. Seed or otherwise rovide ground cover devices ~-:,,-~-r~ ~ ~ E , P • OFD _ ' t to restrain erasion far all exposed slopes within 15 .,D ' _ ~ -0~ pHE E fan hose ~ ~ ~ - E- ~ ~ _ ~ \ 6. MINIMIZE CLEARING, n- - - UH E OHE OHE ~~~ylE~-~'= OHE workin da or 30 calendar days of completion o y p ~ ~ / of radmg, t ~ ; - _,r„_" ' J, NO PERSON SHALL INI RATE LAND DISTURBING ACTIVITY PR10R - - ~ ~ 1 RECEIPT OF NCDENR EROSION CONTROL PLAN APPROVAL, PROVIDE and sedimentation control devices shall be / ~ ~ : ~ / ~ 5. All erosion ~ ~ , ST(~ D ' , / ~ ~ . ~ h rainfall. When ~ ~ ~ / ~ inspected by the Contractor after eoc ~ ~ ; • ! / / ~ ~ 1 ~ 1 COPY OF APPROVAL TO TOWN OF CLAYTON. w 1' ' u~i1- he tra to be reduced to 502 of design / r ~ , ; ~ ~ ~r x , , ; inspection reveals t p • ~ ~ evice to be deficient in ifs intended • ' , . ~ ~ , ~ ,''b +1 / capacity or the d ~ i ' ~ 1 ; ~ ~ t 8. 20' X 50' X 6 THICK COARSE AGGREGATE STONE PAD T E 118'~~ ~ PROVIDED AT CONSTRUCTION ENTRANCE. L T FENC * ¦ 11e. j , nces the ~ ~ ' / ~ SILT FENCE 'on for silt fe ' ~ • / ' ~ / purpose such as fabric deteriorate : ~ s all restore the device to its original • ; ; , • , i ~ / Contractor h . f / ~ ~ ~ OUTLEI ndition, 1 - - OUTLET - ' • \ " - j ~ - 1 ROUND COVER DEVICES OR STRUCTURES _ l t 9, SEED OR OTHERWISE PROVIDE G ~ ` ~ ' i 1 ~ ~ ' ~ - - ~ ~ ' " j 1 ` SUFFICIENT TO RESTRAIN EROSION FOR ALL EXPOSED SLOPES WnTHIN ~ 30 ALENDAR DAYS OF COMPLETION OF ANY • _ _ - _ --1 t. ~ 1 15 WORKING DAYS OR C r main ; ~ ~ ~ ~ ~ ~ ' % c shall a a ion control dew es ~ 6. All erosion and sediment t l11? _ ~ , - ' - ' ~ i PHASE OF GRAD/NG. rn lace and be maintained by the Contractor until ol! . ~ ; ~ • _ _ P hove been ~ : r f 's established and construction areas ~ ~ J : ~ ~ . seeding r ~ ~ ~ ~ i stabilized. , ; s/~ : Jf . A N AS NEEDED ALL EROSION ~ ~ ISTURBED f0. CONTRACTOR SHALL INSPECT AND MAINT 1 _ D 1 ~ ~~~y .1 ~ ~ ~ ~ ~ ~ - , • - CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH MAJOR - j ~ ~ l VICES 1N LIMITS R NT FAILURE TO KEEP ALL EROSION CONTROL DE • ~ ~ 1 STO M EVE , •1 ' ~ l I ' ~ ~ • f $ . t ~ . _ _ . PROPER WORKING ORDER MAY RESULT 1N A STOP WORK ORDER OR . l . ~ 1 k ~ _ ""uC ~ ~ • - - ~ + ~ ~ _ ~ DAY OF VIOLATION, 1 CIVIL PENALTIES UP TO $5000.00 PER r ~ / ~ r , r ~ ~ 1 11. CITY ENGINEER RESERVES THE RIGHT TO REQUIRE ADDITIO~lAL ~ I ~ - - - 1 ' ~ • " f EROSION CONTROL MEASURES SHOULD THE PLAN OR ITS ' t ~ f - - ! ~ 1, - ~ IMPLEMENTATION PROVE TO BE INADEQUATE, D i \ ~ - , PIP INLET PROTECTION A T ALL PIPE INLETS. ~ ~ ~ _ 12. INSTALL E ~ PE ,t: ' Il ~ N i ~ ~ ~ REQU ~ ~ ~ ~iV C~ RBE AREA =23.6 ACRES • W ~~I TH Ir~ TOTAL DISTU D ~ DRAINAGE DISTURBED ~ ? - ~ • SURFACE ~ 4? ~o SPILL111iAY REQUIRED _ 1 Mla`V~Nu,'~ _ ~ A AREA AREA Q 1 , - - - ~ GRAPHIC SCALE 1 t ~ LENGTH VOL. (CF) ARFJ1 ~ . CFS BASIN DIMENSIONS NO ACRES ACRES) ( ) F ~ BASIN ( ) ~ ? ~ I 1 zoo 1 ~ ~ ~ sa o zs so i oa I 0 4 810 708 _ _ _ _ . 4 1.6 19.0 X 38.0 X2.0 ~ #1 0,45 0. 5 ~ . j ~ 1'. • 1 2160 3506 NOTE 1 S`TUR E .0 30.0 X 120.0 X 2.00 6 - _ . TUR E #2 1.72 1.2 8 . 1080 1208 ' ~ • ~ •LI TS - _ !1 TS ~ , IN FEET' , 1 ~ ) 2.8 25.0 X 50.0 X 2.00 4 ' #3 0.88 0.6 , 1 1 inch = 50 it. 4 1260 1186 ~ ~ - - 2.7 25.0 X 50.0 X 2.00 ~ . ~ - #4 0.79 0.7 \ , ~ ~~N flfff • ~ c~~~ ~-s, 00 6023 NOTE 1 2 _ - - . 0.0 X 2.00 8 36 ~ . ~ \ 2 13.8 62.0 X 10 _ SILT FENCE ~ - t~'•a•~. #5 2.88 \ • ~ • 3293 NOTE 1 . - \ ~ . X 82.0 X 2.00 6 ~ , OUTLET j o~ ~ a•t • 1.45 0.20 7.6 41.0 : . ~ - \ . _ . #6 _ \ i \ - 4 540 962 . _ _ ~ ~ ~ ~ ~ a ~ 107 E..t Seoona st, 8410 Folly Ot Newe Rd. Planners . - _ _ ` ~ i; ~ j ! ~ F , ~ A Gnenrille, N.C. 27858 Raloi h N.C, 27815 ~ ~ ~ since r ' Surve ors 2.2 22.0 X 44.0 X 2.00 ~ doe- . _ _ _ . ~ #7 0.82 0.3 . \ . - - . , ; j ~ F~,..:,1 ~ 1918 (252) 752-4155 (919) 848-3947 y 6142 NOTE 1 ~ ~ ~ ~ ~ . 112.0 X 2.00 10 1800 . _ _ _ 1 14.1 56.0 X . ' ~ , ~ , #8 3.13 ~ ~ • 4 576 82 _ ~ \ _ • - - ' ~ - '•,~,g;,Q~~~"~a' ~°v~~gg°~,~ LYNDALE DEI/ELOPERS, LLC ~ ~ ' ~ ~ , M~ ~t~l~is•k-1 1.9 22.0X44.0 X 2.00 \ ~ . #9 0.66 0.32 \ ~ _ , . _ - - ~ ' l.~~ YNDALE SUBDIVISION . ~ ~ 3060 10110 ~ 3.2 74.0 X 144.0 X 6.00 RISER ~ ~ ~ . ~ - • \ . • #10 12.2 1.7 2 _ _ _ i~r - . ~ w~ ~ f - . • 1r"~~ i ~ ~ -PHASE 1 2786 NOTE 1 • r.. \ ~ , _ - ~ ~ .0 X 76.0 X 2.00 6 540 _ _ _a - ;c 1.24 0.30 6.4 38 t?.. ~ . - - • . ~ . . ~ ~ t t • PLAN I ~ 1 _ FRnS/nN CONTROL ~w~ J• ~ l•.,.. ~ , : ~ .'..?~l DATE 'L-']"0(o CLAYTON, NORTH CAROLINA #12 4.51 0.63 18.5 64.0 X 125.0 X z.uu 1%w #13 4.79 1.04 22.8 71.0 X 142.0 X 2.00 12 1872 9915 NOTE 1 PART 10 LAN 2) P H A S E- 1 EROSION CONTROL PLAN ( NOTE 1 -SIZE BASED ON FINAL SYSTEM FLOW F SURVEY JS DRAFT RM SCALE PROJECT NO. SHEET Q N CHECK 1 = 50 24358 5