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HomeMy WebLinkAboutSW6980201_CURRENT PERMIT_19980423STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW (1_ F2'JA__ r DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE DOC DATE YYYYMMDD NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES FAYETTEVILLE REGIONAL OFFICE NCDENR .ky April 23, 1998 I AMEB B. HUNT Mr. James Cothran. .Ii t- GOYERNOR Dominion Development (� P.O. Box 7 Pinebluff, North Carolina 28373-0007 :,iWAYNH'MCDEvITT1= f Subject: Permit No. SW6980201 'SE;CRETA.i Covenant Place High Density Subdivision :;',r N Stormwater Project rI -` f Dear Mr. Cothran: Moore County The Fayetteville Regional Office received the Stormwater Management Permit Application for Covenant Place on February 17, 1998, and additional information on April 13, 1998. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW6980201, dated April 23, 1998, for the construction of stormwater treatment facilities within Covenant Place Subdivision. This permit shall be effective from the date of issuance until April 30, 2008, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in Item I1.4 of this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. Also, please note the requirement for additional channel stabilization in Item II1.7. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following -receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 1 SOB of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made, this permit shall be final and binding. 225 GREEN STREET, SUITE 714, FAYETTEVrLLE, NORTH CAROLINA 26901.5043 PHONE 910.486-1541 FAX 810-486-0707 AN Et1UAL OPPORTUNITY / AFFIRMA7IVE ACTION EMPLOYER • 50% RECYCLED/1 O% POST -CONSUMER PAPER Mr. James Cothran Apri123, 1998 Page 2 If you have any questions or need additional information concerning this matter, please contact Ken Averitte at (910) 486-1541, ext. 323. Sincerely- 6, Stephen A. Barnhart Acting Regional Supervisor S AB/KLA/ka CC' Ken Bright Associates Moore County Inspections Office Fayetteville Regional Office Central Files State Stormwater Management Systems Permit No. SW6980201 STATE OF NORTH CAROLMA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE T RMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Dominion Development Company Covenant Place Subdivision Moore County FOR THE construction, operation and maintenance of two wet detention ponds in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until April 30, 2008, and shall be subject to the following specified conditions and limitations: 1. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described K V, , State Stormwater Management Systems I'cmtit No. SWQ180201 in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit, the Project Data Sheet. The subdivision is permitted for 33 lots, each allowed 3720 square feet of built -upon area. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. DIVISION OF WATER QUALITY PROJECT DATA SHEET Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Runoff.. Classification of Water Body: Pond Depth: Covenant Place Subdivision SW6980201 Moore County Mr. James Cothran, Dominion Development P.O.Box 7 Pinebluff, N.C. 28373-0007 February 17, 1998 Little River "HQW" Pond # 1-6 feet (permanent pool) Pond #2-3 feet (permanent pool) Impervious Surfaces Allowed: 5.74 ac. (33 lots at 3,720 square feet per lot, plus roads and other) Offsite Area entering Pond: Approx. 7.6 acres .19 State Stormwater Management Systems Permit No. SW6980201 Required Surface Area: Pond #1- 8,957 square feet Pond #2- 3,332 square feet Provided Surface Area: Pond #1-12,228 square feet Pond #2- 8,780 square feet Required Storage Volume: Pond #1-17,700 cubic feet Pond #2- 6,607 cubic feet Provided Storage Volume: Pond #1-17,775 cubic feet Pond #2- 6 ,768 cubic feet Temporary Storage Depth Pond 91-1.3 feet Pond #2- .7 feet Controlling Orifice: Pond # 1- 2.0 inches Pond #2- 1.5 inches 4. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature (such as swales) shown on the approved plans as part of the stormwater management system without submitting a revision to the permit and receiving approval from the Division. 5. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon area. Once the lot transfer is complete, the built -upon area may not be revised without approval from the permittee, and responsibility for meeting the built -upon area limit is transferred to the individual property owner. 6. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision of the project area. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 5 State Stormwater Management Systems Permit No. SW6980201 In addition, the Director may determine that other revisions to the project should require a modification to the permit. 7. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. H. SCHEDULE OF COMPLIANCE The permittee will comply with the following schedule for construction and maintenance of the stormwater management system: a. The stormwater management system shall be constructed in its entirety, vegetated and operational for the intended use prior to the construction of any built -upon surface except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 2. The permittee grants permission to DENR Staff to enter the property for the purposes of inspecting the project for compliance with the conditions of this permit. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. 4. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal at indicated elevations. N. State Stormwater Management Systems Permit No. SW6980201 C. Mowing and revegetation of side slopes. d. Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. g. Access to the outlet structure must be available at all times. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. Prior to the sale of any lot, deed restrictions must be recorded which limit the built -upon area per lot to the amount as shown on the Project Data Sheet, per Section 1, Part 2. The recorded statements must follow the form: a. "The maximum built -upon area per lot is 3,720 square feet, inclusive of that portion of the right-of-way between the lot line and the edge of pavement, structures, pavement, walkways of brick, stone, or slate, but not including open wood decking." b. "The covenants pertaining to stormwater regulations may not be changed or deleted without concurrence of the State." "Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the State." If the subdivision exceeds low density, one of the following additional statements are necessary to ensure that all runoff from built -upon areas of the lot is picked up by the pond. Additional statements include: e. "Roof drain gutters are required on all homes and must drain into the street." f "Two-thirds of the lot must be graded toward the street." g, "Swales and ditches must pick up surface runoff and direct it into the pond(s)." 6. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 7 State Stormwater Management Systems Permit No. SW69802QI A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date of recording the plat. The recorded copy must be signed by the permittee, dated, stamped with the deed book number and page, and bear the stamp/signature of the Register of Deeds. 9. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. 111. GENERAL CONDITIONS This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request form must be submitted to the Division of Water Quality accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Per - tee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permit may be modified, revoked and reissued or terminated for cause. The filing of a State Stormwater Management Systems Permit No. SW6980201 request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 6_ Responsibility for operation and maintenance of these stormwater treatment facilities remains with the permittee until 50% of the lots within the subdivision are sold, a homeowners association formed, and a resident of the subdivision named as president of the association. 7. In order to minimize the opportunity for erosion and sedimentation of the forebay of pond #1, Class `B" rip -rap shall be placed in swale #1 draining to that pond, from elevation 95 upslope for a minimum of 80 feet. Permit issued this the 23rd day of April, 1998. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston Howard, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW6980201 C State Stormwater Management Systems Permit No. SW6980201 Covenant Place Subdivision Stormwater Permit No. SW6980201 Moore County Engineer's Certification I, as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the. construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Noted deviations from approved plans and specifications: Signature Registration Number Date 10 North Beverly Eaves Perdue Governor Dominion Development Attn: James "Chip" Cothran 105 Royal Woods Way Whispering Pines, NC 28327 40. NCDENR Carolina Department of Environment and Natural Resources Division of Water Quality Charles Wakild, PE Director February 10, 2012 Subject: Renewal Application Return Stormwater Management Permit SW6980201 Royal Woods (Covenant Place) Moore County Dear Mr. Cothran: Dee Freeman Secretary The Fayetteville Regional Office of the Division of Water Quality received a State Stormwater Permit Renewal Application for the subject project on November 18, 2008. As part of the review of the permit renewal package, it was determined that a Designer's Certification had not been received prior to operation of the associated BMPs or as part of the renewal package. A request was made to provide the Designer's Certification, which is a condition of the original permit and required prior to permit renewal. After much correspondence and many attempts over an extended period of time to receive the required certification seemed to produce no results, a Notice of Violation was issued on January 8, 2010 for Failure to Submit a Designer's Certification. A response with written Plan of Action was requested to be received within 30 calendar days from receipt of the Notice of Violation, which records indicate occurred on February 12, 2010. Although several a -mails and telephone conversations have taken place since that time, a written response has never been received and neither has a signed and sealed Designer's Certification. A letter dated January 20, 2012 concerning the Notice of Violation and lack of receipt of a Designer's Certification was sent via Certified Mail to your attention, but was returned to our office on February 9, 2012 by the US Postal Service as unclaimed. Since the requested Designer's Certification has not been received to date, we are returning your renewal application as incomplete. Recent Session Laws have extended the expiration date of your original permit and as such permit coverage is presently effective until April 30, 2012. In order to renew your permit prior to this date, you must resubmit a complete renewal application package along with the appropriate application review fee currently set at $505. If you have any questions concerning this matter, please contact me at 910-433-3329 or by e-mail at mike.lawyer@ncdenr.gov. Sincerel r Michael Lawyer, CPSWQ Environmental Specialist cc: Nate Doolittle, PE -Land Design (via e-mail) FRO-Sufface Water Protection Section Location: 225 Green Street, Suite 714. Fayetteville, North Carolina 28301 Phone: 91OA33-33001 FAX: 91OA86-07071 Customer Service: 1-877-623-6748 Internet: http://portal.ncdenr.org/webtwq An Equal Opporiunily 1 Affirmative Action Employer One NQrthCarolitia Naturally �F WA rF9 Micbael F. Easley. (''rovemor William G. Russ, Jr., Secrctary rNortb Carolina Department of Environment and Natural Resources p Y Coleen H. Sullins, Director Division of Water Quality SURFACE WATER PROTECTION SECTION STATE STORMWATER PERMIT RENEWAL APPLICATION FORM PERMIT INFORMATION: 1. Stormwater Management Permit Number: SWM6980201 2. Permit Holder's name: James w . Cothran 3. Property Owners Name; James W . Cothran (t different from permit holder) 4. Signing official's name: same Title: Owner (person legally responsible for permit) 5. Mailing address: 105 Royal Woods Way City:Cartha � e g 6. State: NC Zip Code: 28327 Phone: 910-215-4888 or 910-949-2642 7. Project Name: Covenant Place (Area Code and Number) B. Location of Project: (street address) Royal Woods Way, Whispering Pine, NC 28327 9. Directions to Project (framnearestmajorintefsection) Airport Rd. (nC 1842) to PrincessGate Left on Whisper Lake, rt. on Goldenrod; rt- on Indigo; Lett on Royal et to to the left. 10. Specify the type of stormwater treatment (wet pond. inf ftration, atc.): We t Pond _ 11. List any Changes (from project that was originally approved, atlach additional pages if needed) None . Applicant's Certification: I, (print) Ames W . Cothran certify that the information included on this permit ren wal ap lication, is' o est of my knowledge, correct and complete. s Si nature: lavntx Date: (.fit �f" 2-e_ [ Cj Submit this lcom leted form along with an application fee of $505.00, a new, signed Operation and MainteRgwe Agreement and a copy of the designer's certification to the address listed below. �uCarolina turtt!!f. North Carolina Division of Water Quality 225 Green StmetSuite 714 Fayetteville. NC 28301 Phone (910) 433-3300 Customer Service Internet: v ww,newatcmuality.org Fax (910) 486.0707 1.977-623-6748 An Equal OpportunVAffirmahve Adorn EmplMr — 50% Recyde&10% Post GOnSUM Paper Permit Number: (to be provided by DWQ) Drainage Area Number: Wet Detention Basin Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one): ❑ does Q does not incorporate a vegetated filter at the outlet. This system (check one): ❑ does ® does not incorporate pretreatment other than a forebay. Important maintenance procedures: - Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). -- No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. - Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. - If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. - Once a year, a dam safety expert should inspect the embankment. After the wet detention pond is established, it should be inspected once a month and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance should be kept in a known set location and must be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element Potentialproblem- How I wil] remediate the problem The entire BMP Trash debris is present. Remove the trash debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one -tune fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long.__ approximately six inches. Form SW401-Wet Detention Basin O&M-Rev.3 Page 1 of 4 Pcm�t Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potential problem. How I wall remediate the problenu The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the $wale sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosionproblems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the )ants rather than s ra in . The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible. Remove the sediment and storage depth. dispose of it in a location where it will not cause impacts to streams or the BMP. Algal growth covers over Consult a professional to remove 50% of the area. and control the al wth. Cattails, phragmites or other Remove the plants by wiping there invasive plants cover 50% of with pesticide (do not spray). the basin surface_ Form SW401-Wet Detention Basin O&M-Rev.3 Page 2 of 4 Permit Number: (!a be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate the roblem: The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is dams 'Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads feet in the main pond, the sediment shall be removed. When the permanent pool depth reads feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) V Permanent Pool Elevation I Sediment Removal Pe en Pool ----------------- Volume Sediment Removal Elevation ----------------�---- �------ _--__ Bottom Elevatio -ft Min. Sediment Bottom Elevation Storage FOREBAY MAIN POND Form SW401-Wet Detention Basin O&M-Rev.3 Page 3 of 4 l -ft Storage Permit Number: (to be provided by DWQ) 1 acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. t agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name: Covenant; Place/Royal Woods BMP drainage area number: Print name: James W . Cothran Owner Address Royal Woods Way, Carthage, NC 28327 Phone: 910-21 -4886 or 9 -94 -2t54 , Signature lrf cf! 8 Date: Octobe 14, 2008 Note: The legally responsible parry 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, in a Notary Public for the State of County of do hereby certify that n1 V0s_LC� !,n personally appeared before me this day of N 'gtr•,Vr ; . , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, ,X````��11',1 tiY 1 i�f ►rJ!!1/��XY1z/ M c 7? . N o r,q •• ,may SEAL My commission expires_ SG Form S W40I -Wet Detention Basin O&M-Rev.3 Page 4 of 4 2. 0 W A f �R Michad F. Fasley, Cxncmor Welliam G. Ross Jr., Secretary r— North Carolina Department of Environmcnt and Narnral Resources > iL.J�4J\„�� Colin K Sullen, Director Division of Water Quality WATER QUALITY SECTION STATE STORMWATER PERMIT NAMEIOWNERSHIP CHANGE FORM CURRENT PERMIT INFORMATION: Stormwater Management Permit Number: SWM6960201 Permit Holder's Name: Fames w. Cothran 3. Signing official's Name: James W . Cothran Title: Owner (person I ally responsible for permit) 4. Mailing Address: 105 Roya�1 Woods way City: Carthage State: NC Zip: 28327 Phone: ( 910-215-4888 or 910-949-2642 Fax: 1 949-2642 Il, NEW OWNER 1 PROJECT / ADDRESS INFORMATION: 1. This request is for: (please check all that apply) a. Change in ownership of the property/company (Please complete Items #2, #3, and #4 below) x b. Name change of project (Please complete Item #5 below) C. Mailing address change. (Please complete Item #4 below) d. Other (please explain): 2. New owner's name to be put on permit, same as above: James W . Cothran 3. New owner's signing official's name and title: same _ Tide: same 4. New Mailing Address: same City: State: Zip: Phone: ( Fax: ( ? 5. New Project Name to be placed on permit: Royal. Woods (Change from Coven- ant Place to Royal Woods, as platted) QwnershlpiName Change-080808 Page 1 of 3 PERMIT NAMEIOWNERSHIP CHANGE FORM THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION OF WATER DUALITY UNLESS ALL OF THE APPLICABLE ITEMS LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL. REQUIRED ITEMS: 1. This completed form. 2. Legal documentation of the transfer of ownership. 3. A copy of the recorded deed restrictions, if required by the permit. 4. The designer's certification, if required by the permit. 5. A signed Operation and Maintenance playa, if a system that requires maintenance will change ownership. S. Maintenance records. CERTIFICATION MUST BE COMPLETED AND SIGNED BY BOTH THE CURRENT PERMIT HOLDER AND THE7WW APPLICANT IN THE CASE OF A CHAN-bE OF OWNERSHIP. FOR NAME CHANGES, COMPLETE AND SIGN ONLY THE CURRENT PERMITTEE'S CERTIFICATION. Current Permittee's Certification: I James w . Cothran , attest that this application for a name/ownership change has_begn reviewed and is accurate and complete to the best of my knowledge. I undo d that i quired parts of this application are not completed and that if all required supp rting information nd attachments are not included, this application package will be retur ed as incomplete. Signatu Date:--- Now ApAcant's CedWation: (Must be completed for all transfers of ownership) 1, , attest that this application for an ownership change has been reviewed and is accurate and complete to the hest of my knowledge. I understand that if all required parts of this application are not completed and that if all required supporting information and attachments are not included, this application package will be returned as incomplete. - .- Signature. _ _ -Date: Mail the entire package to: NCDENR Division of Water Quality Surface Water Protection Section — Stormwater at the Appropriate Contact Address (see the following page) OwnershipMame Change-080808 Page 2 of 3 (Page 1 of 1) Les D. WARD /U1LR[ lOplirOX "L0;r�4X' CH Lf LL.. WARD i 94 .- a,irnSc- S0QT61011 0P ROYAL W.ODS (Page 1 of 6) BOOK PACE Robert N. 4E, N k7amey at taw ra,ehurst, NC `;1978 110451 RD 24 3 zs PH '53 �MRS. JU::;:'k ; DAWS REGIS"? s i:F;pS DECLARATION OF PROTECTIVE COVENANTS r ROYAL WOODS THIS DECLARATION OF PROTECTIVE COVENANTS, made and entered into this 12th day of Novqmber, 1998, by James W. Cothran, Jr. of Moore County, N.C., hereinafter referred to as "Declarant"; WITNESSETH: WHEREAS, the Declarant is the owner of a certain tract or parcel of land situated in McNeill Township, Moore County, North Carolina, a portion of which parcel has been subdivided into lots which are more particularly shown on that certain plat entitled "Subdivision of Royal Woods, Phase One", dated February 12, 1999, prepared by Charles D. Ward, Registered Surveyor, and which plat is recorded in Plat Cabinet 7, Slide 317, Moore County Registry, to which map and its recordation reference is hereby made for a more complete, accurate and particular description of said property, and the Declarant does now desire to subject the said Iots to those certain protective covenants hereinafter set forth; and WHEREAS, the lots shown and designated on the plat herein above referred to are made subject to the restrictions and covenants hereby declared for the purpose of insuring the best use and most appropriate development and improvement of the subdivision, and to protect the owners of the lots against such improper use of surrounding lots as will depreciate the value of their property; to preserve, so far as practicable, the natural beauty of said lots to guard against poorly designed and unsuitable materials; to obtain harmonious color schemes; to insure the highest and best development of said property; to encourage and secure the erection of attractive homes thereon, with appropriate locations thereof on said lots; to secure and maintain proper setbacks from streets, and adequate free spaces between structures, and in general to provide adequately for a high type and quality of improvement of said property, and thereby to enhance the value of investments made by purchasers of lots therein; NOW, THEREFORE, the Declarant hereby declares that lots numbered l through 23, inclusive, as shown and designated on the aforesaid plat, shall be single-family residential lots only and shall be held, transferred, sold and conveyed subject to the following protective covenants: 1. The lay of the lots as shown on the recorded plat shall be adhered to and no lot or group of lots shall be subdivided so as to produce a greater number of smaller lots. However, lots or portions of lots producing a lot in greater size than the average lot of nhe subdivision may be combined into a single curtilage and home site for the erection of a residential structure, and the restrictions hereinafter set out as to setbacks shall apply to the outside boundary lines of the combined curtilage. As to any lot or lots that has not been sold by Developer, Developer (page 2 of 6) 'BOOK p4cE Robert N. Page, IA furomey w Law Plnehurv. NC '1147a (IU452 reserves the right to re -subdivide any such properties, of course any sub -dividing will have to be in accord with the zoning ordinances in effect at such time. 2. Declarant reserves the right to petition for the annexation of lots 1 through 23 into the Village of Whispering Pines. 3. Except as provided in #3 below, no structures shall be erected, altered, placed or permitted to remain on any residential lot other than one main dwelling and a detached garage. No duplex house or multi -family apartments may be constructed or used on said premises. No structure can be rented separate from the main dwelling. The dwellings constructed on any lot in this subdivision shall be single family residential dwellings only, and no multi -family groups may reside in or occupy any single family residence located on any lots in this subdivision. The ordinances and regulations of The Village of Whispering Pines shall prevail to the extent that they are more restrictive. 4. No building, tool shed, chain link fence or any fencing of any type may be erected or placed on any lot of said development without approval of the Architectural Control Committee and the Village of Whispering Pines Ordinances. Additional lighting requiring installation of power poles may not be erected without the permission of the Architectural Control Committee. 5. All areas indicated as streets and easements on said plat are hereby dedicated to public use as such use forever. The Developer will maintain the streets until such time as they are accepted by the Highway Department, or the Village of Whispering Pines, as the case may be. 6. No residential structure shall be located on any lot less than forty (40) feet from the front lot line, and no building shall be located less than twelve (12) feet from any side lot line, and no building shall be located less than fifty (50) feet from the rear lot line. The setback as to side lot lines on a side street is fifteen (15) feet. 7. No residential structure which has an area of less than one thousand eight hundred (1800) square feet heated area, exclusive of porches, shall be erected or placed on any lot. if the residential structure is a two-story building, it shall have not less than eleven hundred (1100) heated square feet on the ground floor in accordance with the ordinances of the Village of Whispering Pines. 8. No noxious or offensive trade or activity shall be carried on upon any lot, nor shall anything be done thereon which may be or become an annoyance or nuisance to the neighborhood. No billboards or signs shall be erected or maintained on the premises. No business activity of any. kind whatsoever, which shall include, but not limited to, the use of any residence as a doctor's office or professional office of any kind, a fraternity house, a boarding house, antique shop or gift shop, shall be carried on upon any lot. 9. No automobile or other motor vehicles may be dismantled unless housed in an approved (Page 4 of G) BOOK PAGE Robert N. Page, Ill Artorney at Law Anehum, NC *No 0 1 1 7 U 0 U f 5 1 structure. No mechanically defective or currently unlicensed motor vehicle shall be stored, placed, or allowed to remain for more than ten (10) days. No junked motor vehicles shall be placed, stored, or allowed to remain on any lot with this subdivision outside of approved structure. 10, Any trailer, boat, and/or playground equipment, shall be parked or placed in the rear of any lot. No trailer, boat, motorized home, mobile home, recreational vehicle, or the like, shall be occupied for any length of time for any purpose. Any motorized home or recreational vehicle may not be stored on any lot unless garaged. Motor homes and recreational vehicles, not garaged, may not remain on any lot for more than three (3) days. Any boat or trailer kept on any lot shall be garaged or kept in the back yard, out of sight from the street. If the Village of Whispering Fines has more restrictive ordinances, the more restrictive of these covenants or the Village's ordinances shall apply. 11. No animals or poultry of any kind, other than normal household pets, shall be kept or maintained on any lot in this subdivision. No animals or pets that are otherwise allowed to be kept or maintained on any lot in this subdivision shall not be allowed to run free or unrestrained, and the owners of any such animal or pet shall be responsible to any damaged party for damages or losses caused or resulting from allowing its animal or pet to run free and unrestrained within the subdivision. 12. No mobile home or trailer home shall be placed, erected or constructed on any lot within the subdivision. 13. The interpretation and decisions that may be necessary in connection with Royal 'Woods, shall be made by and through the Architectural Control Committee which shall be appointed by the Developer (Declarant) or his designee. The initial ARC shall be Declarant and/or his designee(s). If there be no Architectural Control Committee thusly named and appointed for a period of ninety (90) days, any vacancy or vacancies not filled within said time in the manner afore indicated, shall be named and appointed by a majority vote of the lot owners with each entitled to cast one (1) vote. No building or construction of any kind whatsoever shall be put, placed or built upon any lot until the plans for the same be approved by the Architectural Control Committee in writing. Plans submitted to the Committee which remain un-responded to in writing from the Committee for ninety (90) days after receipt by the Committee of said plans shall be deemed to be approved. All foundations shall be brick unless this provision is waived in writing by the Architectural Committee. To say again, all foundations of all dwellings shall be brick unless this provision for brick foundations is waived in writing. if plans are submitted wherein there will not be a brick foundation, this fact must be called to the attention of the Architectural Committee along with a written request for a written waiver of this provision for brick foundations. 14. Such designated park area(s) as required by the Village of Whispering Pines ordinances shall be provided by the Developer (Declarant); and, Developer shall also provide and maintain such (Page 3 of 6) BOOK PACE Robtrf N. Page, 171 Atzorney al Law Pinehrurr. NC *4%0 U 1 4 7 8 00453 areas and ponds as required for erosion control. After five years or when ten (10) lots have been sold, whichever occurs later, the then current homeowners shall form a homeowners association and accept title and responsibility for said property. Developer reserves the right to substitute other land for park and erosion control areas, subject to the approval of the governmental unit in question. The Developer will maintain the park area(s), as well as areas and ponds as required for erosion control, until such time as they are taken over by the homeowners association. The Developer may elect to pay the cost of forming the homeowners association. Developer reserves the right to transfer to the Village of Whispering Pines such of the above areas as the Village may be willing to accept. Developer further reserves the right to substitute and/or swap said areas with the approval of the government involved. These rights shall pass to the HOA if Developer is unable to exercise them. 15. The Declarant reserves the right to subject the property hereinabove described to a contract with Carolina Power & Light Company for the installation of underground electric cables which may require an initial contribution and/or the installation of street lighting, which will require a continuing monthly payment to Carolina Power & Light Company by the owner of each lot in this subdivision. 16. There is reserved herein an easement for drainage and utility purposes on each lot as follows: Ten feet on front and rear; 7.5 feet on interior side lines and 10 feet on exterior (or corner) side lines. 17. Declarant (Developer) shall retain and does have authority and the right to sign an annexation petition for the homeowners, notwithstanding any provision hereinbefore setforth or hereinafter setforth or the sale of lots herein. 18. Building contractors shall furnish Developer one copy of house plans and one copy of the site plan. Building contractor shall also be responsible for repairing any damage to roads and road shoulders caused during construction. 19. The maximum built -upon area per lot is to be an average of 3,720 square feet, inclusive of that portion of the right-of-way between the lot line and the edge of pavement, structures, walkways of brick, stone, or slate, but not including open wood decking. Developer shall be responsible for making sure this average is adhered to and shall maintain copies of all plans of all buildings or lots as well as a site plan thereof. 20. The covenants pertaining to stormwater regulations may not be changed or deleted without concurrence of the State. Developer reserves the right to amend these restrictions pertaining to stormwater with the concurrence of the State, notwithstanding any provision hereinbefore or hereinafter set forth or the sale of lots. 21. Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the State. (page 5 of 6) BOOT( PAGE Wert N. Page, A! Arromey at Law Anehurer, NC . *%6 �11476 00455 22. Swales and ditches must pick up surface runoff and direct it into the pond(s). The foregoing protective covenants shall be deemed and considered as covenants running with each and all of the lots hereinabove referred to, and the same are imposed upon each lot for the equal benefit of the Declarant, his heirs and assigns, and all lot owners, their heirs and assigns, and all of the said protective covenants may be enforced either by the Declarant, his heirs or assigns, or the owner of any lot ins aid subdivision. Invalidation of any one or more of the foregoing protective covenants by judgment, court order, or by law, shall in no wise affect any of the remaining protective covenants, all of which shall remain in full force and effect. These covenants shall be binding on all parties and all persons claiming under them until November 19, 2012 at which time said covenants shall be automatically extended for successive periods of ten (10) years, unless terminated by two thirds majority vote of all lot owners. in no event however shall these covenants continue beyond 2076 If these covenants shall be violated or attempted to be violated by any lot owner (or person or persons), it shall be lawful for any person or persons owning lots in said subdivision to prosecute any proceedings at law or in equity against the lot owner (or person or persons) violating or attempting to violate any such covenant, and either to prevent said person or persons from so doing or to recover damages or other costs for such violation. IN WITNESS WHEREOF, the Declarant has hereunto set his hand and seal as of the day and year first above written. Jr., Declarant STATE OF NORTH CAROLINA COUNTY OF MOORE I. a Notary Public in and for said County and State do hereby certify that James W. Cothran, Jr., the Declarant, personally appeared before me this day and acknowledged the due execution of the foregoing Protective Covenants. BOOK PAGE Witness my hand and official seal or stamp this o77 day of 1998. o Publ' .�� .• � J My ommission expires: al NORTH CAROLIN"CORE COUNTY The foregoing certificate(s) a N tary/Noteries Pubilc i$/Ora Certl led to Ise correc 9 Thia day of 1 IUDITH A EM 1ETANTIDT;T�IZT Robert N. Page• III Aftomey at Law Pinthur6r, NC James W. Cothran Dominion Development 105 Royal Woods Way Whispering Pines, NC 28327 Phone 910-949-2642 Car 910-215-4888 Fax 910-949-2642 Email: jamescothran embar mail.com November 15, 2008 Mike Lawyer Environmental Specialist Division of Water Quailty DENR 225 Green Street Suite 714 Fayetteville, NC 28301 Re: Detention Ponds, Royal Woods, formerly known as Covenant Place Dear Mike: NOV : f Enclosed is an executed Stomwater Permit Renwewal Application form and an executed Change of Name form regarding the above. There will be no change of ownership at this time. In reference to the Change of Name form, this project is under the same ownership and is identical in all respects to the Covenant Place project. The project started as Covenant Place. When the final plat was recorded, the name of the project was changed to Royal Woods. The lots and roads remained as designed under Covenant Place, as well as the location and,design of the detention ponds. So the only change was the name on the plat. Accordingly, 1 have attached a copy of the plat, which was recorded in plat cabinet 7 at slide 317 on February 17, 1999. The restrictions are also attached. They include the same provisions DENR wanted for Covenant Place. At that time I neglected to file the change of name form. I continue to be the owner/developer and still own some lots. If this needs to be changed in any way please advise. T ks, u �' 'D a, \-N" James W Cothran y - (io be provided by°DWO' . Yh k State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form may be photocopied for use as an original DWG Stormwater Management Plan Review: A complete stormwater management plan submittal includes a wet detention basin supplement for each basin, design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed operation and maintenance agreement; 1. PROJECT INFORMATION (please complete the following information): Project Name :. 0,0N N Contact Person: J Yl C 2�i✓ Phone Number: � _ , . d-9For projects with ;multiple basins, specify which basin this worksheet applies to; /&11z:� Basin Bottom Elevation ___ d�- U ft. (average elevation of the floor of the basin) Permanent Pool Elevation .2Q. D ft. (elevation of the orifice) Temporary Pool Elevation _ '7 a , 7 ft. (elevation of the discharge structure overflow) Permanent Pool Surface Area � Pu sq. ft. (water surface area at the orifice elevation) Drainage Area Impervious Area Permanent Pool Volume Temporary Pool Volume Forebay Volume SA/DA1 used Diameter of Orifice Design TSS Removal 7 to ac. �-f� 5ry ac. y, cu. ft. b 9 6 8 cu, ft. S 3O cu. ft. D. d IDd7 l in. II. REQUIRED ITEMS CHECKLIST (on -site and off -site drainage to the basin) (on -site and off -site drainage to the basin) (combined volume of main basin and forebay) (volume detained above the permanent pool) (surface area to drainage area ratio) (85% TSS removal required, see item k below) The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15 A NCAC 2H .1009. Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. Form SWU-102 January 1998 Page 1 of 2 -. -, , „-. ,--- i . ."_Ium 1 i7(T ijr'111J f M•OT OCC TFF.rn-1lWLI dtials 1Cvyi�, MIA 63 L id lCw� W 14L& 4610 AWA POO motes- h a?1MIN ^"•y� 7� h1.h ?°'tr'� kl5.r i,,.�4i' 7 �i=. - . t�' • , ' e s ,. �X 4.1- ss�� fF' �}� Is, � �-M'..''L� +�yµf�i `'�. � �� �� �"'� '• �' `p a. The temporary pool controls runoff from'the I inch storm event. b. nr. basin'length to width ratio is,gr6ater•than'3:.1. c. The basin side slopes above the permanent •pool are no steeper than 3:1. d. -A submerged and -vegetated '.peorneter shelf, at,less than 6:1 is provided (show detail). e. Vegetation above the.permanent pool elevation is specified.- f. An emergency drain is provided to empty the basin. — PSCr/n.� .. N67 /A! jr-aecS,9x g.. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). L The temporary pool draws down in 2 to 5 days., i. A trash rack is provided for both the overflow and orifice. 1. The forebay volume is approximately equal to 20% of the total basin volume. k Sediment storage is provided in the permanent pool. 1. A 30-foot vegetative filter is provided at the outlet2 (include erosive flow calculations) m. Recorded drainage easement fdr each basin including access to nearest right-of-way. n. A site specific operation and maintenance (O&M) plan is provided. o. A vegetation managementlmowing schedule is provided in the O&M plan. p. Semi-annual inspections are -specified in the O&M plan. q. A debris check to be performed after every storm event'is specified its the O&M plan. r. Specific clean -out benchmarks am specified in the O&M plan (elevation or depth). = s. A legally responsible party is designated in the O&M plan3 (include narne and title), t. if the -basin is used for sediment and erosion control during construction, clean out of the basin is specified to be,performed prior to use as a wet detention basin, 1 When using the Division SAIDA tables, the confect SAIDA ratio for permanent pool sizing should be computed based upon the actual impervious Rb aad'pcnrianent' pool depth.' Liriedr interpolation should be enVoyed to determine the correct value for non- stRndatd table hies. 2 The requirement for a vegetative filter may be wai ved if the wet detention basin is designed to meet 90136 TSS removal. 3 The Iegally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a Msi,dent of the subdivision has been named the president Form SWU-IO2 January 1998 Page 2 of 2 Sheetl ROUTING FOR RISER/BARREL SPILLWAY WITH EMERGENCY WEIR PROJECT COTHRAN,POND#21-. -1 FILE: C -. kKEN\KENEXC EL\ROUTINGXCOTHRAN\C HAIN PD2. DATE: 4/7/98 INPUT Dr = 24 in die.. riser . op = 17 0 PEAK DISCHARGR Etop. 3.7 ft. Elev. top riser' 24.85 TIME OF PEAK] Cwr = 3.3 Riser weir'coeff ioitht dTF 2 TIME INC REM8NT(Tp/10) Cdr 0.59 Riser orifice CoOffbient Ks = BB37 FROM PREVIC31 Iq CALCULATIONS b = 1.26 KOO PREVIOUS'CAL &LATIONS 1Db = 12 .in. Barrel dia. Area = 0.79 0. area of,Barrdl E i nv = 0 ft- Elev.jnV. Q fU]I-barrel= 2.6 cfs Cdb = 0.59 barrel'orri ice ooeff iclent inital pool elev. 72.00 N 1 # PIPES initial stor 14279 Cut; barrel inv elev. t 69.00 ft. EMERGENCY_WEIR: top elevAser 72.70 ft. Cw = 3 Weir q6efficient., elev emer. Wier = 73,70 ft. tcr = 47 ft.. E16V weir crest Lw = 10 Wtlr length Page 1 Sheetl OUTPUT: TIME INFLOW STORAGE STORAGESTAGE STAGE TOTAL RISER RISER BARREL PRINCIPAL EMERG. (min) cfs (cu. ft.) acre ft.) jABOVEINV ELEV OUTFLOW (weir) (orrifice) SPILLWAY WEIR ft. ft. cfs cfs cfs cfs cfs cfs 0 0 14279 0.3281 3.00 72,00 0 0 0 ol 0 0 2 0 14279 0.327801 3.00 72.001 0 0 ol 61 0 0 4 1 14311 0.329 3.01 72.011 0 0 0 61 0 0 6 2 144391 0.331 3.04 72.041 0 0 0 61 0 0 8 4 14719 0.338 3.09 72.091 0 0 0 61 0 D 10 6 15197 0.349 3.171 72.17 0 0 0 61 0 0 12 8 15910 0.365 3,261 72.26 0 0 0 6 0 0 14 10 16675 0.387 3.381 72.38 0 0 ol 6 0 0 16 12 18097 0.415 3.511 72.51 0 0 ol 6 0 0 18 14 19562 0.449 3.661 72.66 0 0 ol 7 0 0 20 15 21243 0.488 3.831 72.83 1 1 51 7 1 0 22 16 229841 0.528 3.991 72.99 3 3 81 7 3 0 24 17 245741 0.564 4.131 73.13 6 6 101 7 6 0 26 17 259091.0.595 4.241 73.24 7 8 11 71 7 0 28 16 270771 0,622 4.341 73.34 7 11 12 7 7 0 30 15 28163 0.6471 4.431 73.43 7 13 13 7 7 0 32 14 29111 0.668 4.511 73.51 7 15 13 7 7 0 34 12 29879 0.686 4.571 73.57 7 17 14 7 7 0 36 11 30476 0.700 4.621 73.62 8 18 14 81 8 0 38 10 30918 0.710 4.651 73.65 8 19 15 8 8 0 40 9 31223 0.717 4.681 73.68 8 20 15 8 8 0 42 8 31405 0.721 4.69 73.69 8 20 15 8 8 0 44 7 31476 0.723 4,70 73.70 8 21 15 8 8 0 46 7 31450 0.722 4.69 73.69 8 21 15 8 8 0 48 6 31335 0.719 4.691 73.69 8 20 15 8 8 0 50 5 31143 0.715 4.671 73.67 8 20 15 8 8 0 52 5 30880 0.7091 4.65 73.65 8 19 14 81 8 0 54 4 30556 0,7011 4.62 73.62 8 18 14 8 8 0 56 4 30176 0.6931 4.59 73.59 8 18 14 81 8 0 58 4 29748 0.6831 4.56 73.56 7 17 14 71 7 0 60 3 29276 0.672 4.52 73.52 7 15 13 71 7 0 62 3 28766 0.6601 4.48 73.48 7 14 13 71 7 0 64 3 28223 0,6481 4.441 73.441 7 13 13 7 7 0 66 2 27650 0.635 4.391 73.391 7 12 12 7 7 0 68 2 27052 0.621 4.341 73.341 7 11 12 7 7 0 70 2 26431 0.607 4.291 73.291 7 9 11 7 7 0 72 2 25792 0.592 4.231 73.231 71 81 11 7 71 0 Page 2 Sheetl 741 2 25135 0.5771 4.18 73.18 71 7 101 7 7 761 1 24499 0.562 4.12 73.12 61 6 10 7 6 78 1 23983 0.551 4.08 73.08 51 5 9 7 5 80 1 23557 0.541 4.04 73.04 4 4 9 7 4 82 1 23200 0.533 4.01 73.01 4 4 8 7 4 84 1 22897 0,526 3.98 72.981 3 3 8 7 3 86 1 22637 0.520 3.96 72.96 3 3 8 7 3 88 1 22412 0.515 3.94 72,94 2 2 7 7 2 90 1 22215 0.510 3.92 72.92 2 2 7 7 2 92 1 22042 0.506 3.90 72.90 2 2 7 7 2 94 1 21887 0.502 3.89 72.89 2 2 61 7 2 96 0 21750 0.499 3.88 72-881 2 21 61 7 2 i RISER --BARREL ROUTING 18 { in'. € ° M l x 04. sS , FSsx 3 k� Jl11�'4+?�� Fj j�� 14 ��5��4Y� �t i F� 1� .r�F to ,*Fh�+a� �} � Jy '� � ' �' �y � n� � £ �``�� � Sri .#' r���TTT���...'''o- ��A.��rs f(73 vfi� �$ + V 12 �1 i is �Y�{'Am n}7F�zp r}� w S ii� 5) }� v i? ♦ - >k �3 f � 10 � 2� l.�j•'}}l�iC"vS�.� .*�>� �• ,pSyT�f 8b } GlL�i `4tY SlXY �l i .tAS i33�tr1 a1f(Y'11 r � }� � «—f-5erias6 6 d # 3 1 hy�i tt)Zl Y� 4 ltyy 2 'H1F, R" 140 fka 0 a (p (� p Ep O V CO N' CMN M .l0 b 7 Lo In TIMIr (min.) Page 3 Sheetl DETERMINE- RUNOFF AND•AND PEAK: UTI-LiZES MALCOLM& CHAI NSAW METHOD PROJECT: COTHRAN POND #2, WHISPERING PINES FILE: C:\KEN\KENEXCEL\ROUTINGISTAGST02 DATE: 4/7/98 DETERMINE.Qp for 10 Year storm: INPUT: AREA= 7.6 AC: Coeff­ 0.3 FT BAS. LENGTH = 1000 FT BAS:, HEIGHT = 70 OUTPUT: Tc.= 4.44 Min, Kirpich;Eauation, Equatioml-2 Malcolm- ITO'=, 7.38 Pubhr • See'IDF Equation 1=1 'hibit #2 Malcolm QPTO = 17 :CFS'-' Rational, Equation'l-1• COMPUTE DEPTH OF RUNOFF and Tp: INPUT: P =- 3.90 in From Exh ibit #2, Malcolm =10yr;;6:hrprecip:.Raleigh; N Soils.Group'.= B From:Soil Erosion Manual Page. 8.03:8':.SC. •Method CN = 70 From -Soil erosion.Manual Table 8:03b:CN Tahie OUTPUT: S - 4.29 ultimate sod storage. Q*-= 1.26 in - 10 yr:,'Bhr Runoff Depth'NOT-FLOW Tp'= 24.85. Min STAGE STORAGE FUNCT16-N— CONTOUF INCR. ACCUM. CONTOUR AREA - VOL. VOL. STAGE In Storage In Z Z• est. 72 -9,026 0 73 10504 -9765 .9765 1 9A8656 0 1:082159 74 12619 11561,.5 21326.5 2 9.967706 0.693147 2.00669 75 14945 13782 -35108.5 . 3 .10,4662 .1.098612 2:975958 76 17519 16232 51340:5 4 10.84624 1-.386294 -4.018871 Rggression Output: 9.086681 Ks = 8837 Constant Std Err. Of Y Est. 0.012525 b = 1.26 R Squared 0.999596 No, Of Observations 3 Degrees of Freedom 1 X Coefficient(s) 1.264955 Std. Err of Coeff. 0.025433 Page 1 Sheetl Tc = (LA3/H)^0.385/128 110 = g/(h+T) Q=CIA Table #1 S = 1000/CN-10 Q' _ (P-D.2S)^2/(P+0.8S) Tp = VOL"Ac/1.39 Qp"1ft/12in'43560se/ac"lmin/60sec SUMMARY OUTPUT Regression Statistics Multiple R 0.999798 R Square 0.999596 Adjusted R 0.999192 Standard E 0.012525 Observati 3 �ANOVA df SS MS F ' nificance F Regressior 1 0.388089 0.388089 2473.737 0.012798 Residual 1 0.000157 0.000157 Total 2 0.388246 I I Coefficients andard Err t Stat P-value ower 95©.IUppar95%werQ5.00Qper95.000% Intercept 1 9.086681 0,0278961 325.73261 0.001954 8,732229 9.441134 8.732229 9.441134 JXVariablej 1,264955 0.025433 49.736671 0.012798 0,941799 1.588111 0,9417991 1.588111 RESIDUAL OUTPUT PROBABILITY OUTPUT Page 3 Sheetl .1 STAGE STORAGE FUNCTION ME ZIP 105 Wysrs 7��a a 5 Ci"'T - ''i'+nl� ✓w� ✓�� 10 l 8.5 w.1 1 2 3 4 5 6 In Z Page 2 tmp#18 COTHRAN POND # 2 -ELEVATIONS ABOVE PERMANENT POND 4/8/98 ##Units=Elevation, ft,Area, ft2, Volume, ft3, Volume, ft3 # Elev Area Cumml Avg Cumml Conic #' ft ft2 ft3 ft3 76.0000 17518.5111 51339.9669 51281.0679 75.0000., 14944.6878 33108.367.5- 35066-.5005 74.0000 12618.9851 21326.531.0 21301.0460 73�.00Cf G 10503.8.578 97651.1035 9755.7815 72.0000 9026.3611 0.0000 0.0000 le,5 ze - 902 6 y 7vp pjr?er4 = G 9- a Page- 1 tmp#18 COTHRAN POND # 2 MAIN POND 4/8/98 #Units=Elevation, tt,Area,mi-2,Volume, ft3.,Volume-, ft3 # Elev Area Cumml Avg Cumml Conic #. ft mi2- f t3l ft3 72.0000 0.0002 11749.3904 11676.0781 71.0000 0.0002 6.193.3187. 6157,5461 70.0000 0.0001 2538.4124 2531.3049 69-. 0.000 0. 000-1 0. 00`00 0'-.0000 FW / /O� n v� S2o U°k- Page, 1 /voo / ex- / z 6 //4/ C /` 0It- tmp#18 COTHRAN POND #2 FOREBAY 4/8/98 #Units=Elevation, ft,A•rea,mi2, Volume, ft3, Vo•lume•, ft3 # Elev Area Cumml Avg Cumml Conic #- ft mil ft3 ft3 72.0000 0.0001 2530.2827 2444.4851 71.0000 0.0000 881.2247 &27.5539 70.0000 0.0000 186.7227 175.0823 69.0000 0.0000 0.0000 0.0000 Page 1 DITCH DESIGN PROJ: Covance Subdivision DATE: 2r3198 FILE: ditchVcothranlpondl INPUT: Swale #: 1 description: Swale at pond alternate 3:1-clay soils on Swale upstream use: Residential USE known area = 13.5 ac. USE known C = 0.3 SKIP area = 0.5 acres woods = 0 ac. road = 0 ac. residential = 0.5 ac. SKIP Cwoods= 00.4 C-road = 0.75 C residential = 0.3 SKIP ac. building= 0 ac. gravel = 0 ac. suburban= 0 SKIP C-roof = 0.95 C-gravel = 0.4 C suburban = 0.25 ac. soil type: sandlclay weighted C = 0.30 C = 0.30 from table 8.03a runoff coefficient or from weighted c from above Tc = 5 minutes; calculate based on Fig.8.03a, use 5 minutes min. 12 = 5.5 in per hr for Raleigh Fig 8.03e length = ft 110 = 7.5 in per hr for Raleigh Fig 8.03e rise = ft type channel: TRAPEZOIDAL width = 3 if triangular must be zero channel slope = 5 % side slope = 3 ft per ft OUTPUT: Q2 = 22.28 cfs Q 10 = 30.38 cfs Grass checkPERMANENT use figure 8.05c Mannings 'n'for grass- make sure HR times velocity yields same n grass type: use fescue which has a velocity capacity of 4.5 fps for slope < 5% grass condition depth ft. Q cfs 30.38 n HR times Vel chart HR times Vel calculat computed comments velocity fps area of channel sq. ft. HR-hydraul radius Wetted Perimeter ft. o7d1h low D 1.3 64.35 0.04 3 5.7 7.17 8.97 0.80 11.221 7.8 D 1.52 59.97 0,06 1 4.81 5.22 11.49 0.91 12.61 9.12 D 1,41 61.21 0.05 1.5 5.1 oka for n vel, & Q 6.00 10.19 0.86 11.92 8.46 c 1 1.45 54.17 0.06 1.71 4.5 okay for n vel, & Q 1 5.081 10.66 0.88 12.17 8.7 c 1.55 53.62 0.07 1.41 4.2 4.52 11.86 0.93 12,80 9.3 c 1.35 55.78 0.05 2.4 4.8 5.861 9.52 0.82 11.54 1 8.1 use depth = 1.5 ft. TEMPORARY: if velocity greater than 2 fps on bare earth then use temporary liner for temporary liners 'n' see table 6.05e, for riprap see table 8.05f bare earth n = 0.02 table 8.05b channel linings use Q2 = 22.28 cfs since temporary condition condition depth ft. Q cfs 22.28 n comments velocity area hydrauli radius Wetted Perimeter ft T op width . bare earth 0.65 31,591 0,02 depth okay I liner re 'd 9.82 3.22 0.451 7.11 6.9 excelsior I 0.85 30.631 0.035 okay 1 6.491 4.72 0.56 8.381 8.1 shear stress = 2,65 lb per s . ft., formula T = yds, page 8.05.12 Rip-rapRip-rap T = 3.0 Ibis .ft. comments: use class 6 dprap Excelsior T =1.55 Ibis .ft. see table 8.05g for allowable stress •.1 DITC-H DESIGN PROJ: Covance Subdivision DATE: 4/8/98 FILE: c:lexceiken\ditch\cothranlpond2pri INPUT: Swale H: 3 description: Swale at outlet of primary pipe Q from other calculatioms-pogram modified Use: Residential norm area - so. known C - known Q - 8 cfs Lrda - 0.5 acres woods - 0 ac. road 0 ac. residan 0.5 ac. USE Cwoods- 0.4 C-road 0.75 sidential - 0.3 USE ac. building- 0 ac. grave 0 ac. subur 0 USE C-roof - 0.95 C-gravel 0.4 suburban - 0.25 so. soil type: sand/clay weighted C = 0.30 C - 0.30 from table 8.03a runoff coefficient or from weighted c from above To - 5 minutes; calculate based on Fig.8.03a, use 5 minutes min. 12 - 5.5 in per hr for Raleigh Fig length = ft I10 - 7.5 in per hr for Raleigh Fig rise - ft type channel: TRAPEZOIDAL width - 11.25 if triangular must be zero channel slope - 0.5 % side slope - 3 ft per ft OUTPUT: 02 - cfs Q10 - 8.00 cfs Grass the PERMANENT use figure 8.05c Mannings 'n' for grass- make sure HR times velocity yields same n grass type: use fescue which has a velocity capacity of 4.5 fps for slope < 5% grass depth ft Q cfs n HR times HR times comments velocit area of HR-hydrau wetted Top width condition 8.00 Vel char Vel calcul fps channel radius Perimeterft. low computed sq. ft. ft. D 0.7 9.96 0.07 0.7 0.6 1.07 9.35 0.60 15.68 4.2 D 0.6 8.90 0.06 1 0.6 1.14 7.03 0.52 15.04 3.6 D 0.7 6.72 0.08 0.5 0.6 okay for n vel, & Q 0.93 9.35 0.60 15.68 4.2 c 0.9 8.33 0.13 0.5 0.5 okay for n vel, & Q 0.66 12.56 0.74 16.94 5.4 C 0.85 8.90 0.11 0.7 0.5 0.76 11.73 0.71 16.63 5.1 c 1.02 9.02 0.15 0.4 0.5 0.62 14.60 0.82 17.70 6.12 use depth 1.5 ft. TEMPORARY: if velocity greater than 2 fps on bare earth then use temporary liner for temporary liners 'n' see table 8.05e, for riprap see table 8.05f bare earth n - 0.02 table 6.05b channel linings use ¢2 0.00 cfs since temporary condition condition depth ft Q cfs n comments velocity area hydraul Wetted Top width 8.00 radius Perimeter ft. bare earth 0.3 8.16 0.02 depth aka liner req 2.24 3.65 0.28 13.15 13.05 excelsior 0.42 8.27 0.035 okay 1.57 5.25 0.38 13.91 13.77 shear sires 0.i3 lb per sq. ft., formula T = yds, paRip-rap T = 3.0 lb/sq.ft, comments: use excelsior mat Excelsior i.55 lb/sq. see table 8.05g for allowable stress N N DL c le-CDENR I r ilJrr � c MES B. HUNT JR„ } �' •GOVERNOR ry'J-. � .SECRETARY r� �i',` _�• -NSF. .`. , Y r NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL_ RESOURCES FAYETTEVILLE REGIONAL OFFICE April 23, 1998 Mr. James Cothran . Dominion Development P.O. Box 7 Pinebluf, , North Carolina 28373-0007 Subject: Dear Mr. Cothran: Permit No. SW6980201 Covenant Place High Density Subdivision Stormwater Project Moore County The Fayetteville Regional Office received the Stormwater Management Permit Application for Covenant Place on February 17, 1998, and additional information on April 13, 1998, Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW6980201, dated April 23, 1998, for the construction of stormwater treatment facilities within Covenant Place Subdivision. This permit shall be effective from the date of issuance until April 30, 2008, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in Item 11.4 of this pernut. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. Also, please note the requirement for additional channel stabilization in Item III.7. If any parts, requirements, or limitations contained in this pernrit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made, this permit shall be final and binding. 225 GREEN STREET, SUITE 714, FAYETTEVILLE, NORTH CAROLINA 28301-5043 PHONE 91 0-4a6-1541 FAX 910-486-0707 AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - SO% RECY6LE0/10% POST -CONSUMER PAPER Mr. dames Cothran April 23, 1998 Page 2 If you have any questions or need additional information concerning this matter, please contact Ken Averitte at (910) 486-1541, ext. 323. Sincerel %I t k� Stephen A. Barnhart Acting Regional Supervisor SABIKLAJka cc: Ken Bright Associates Moore County Inspections Office Fayetteville Regional Office Central Files w ORAL prvu clearly Pr0J 'ect Name 2. Location, directib to -project -(include County. Address. State Road) Attach reap. . n� Rc. 3. Owner's Name A Phone—(q /d 4. Owner's Mailing Address* 2)CE:U State City '7r/ 5, Nearest Receiving Stream �5 L)� Class G. Project description 7J.d e I a J1. - PETUffr DFORMATION I . PerMit).'40 -(To be filled in by D 2. Application Date A ha Fee enclosed $_j2o, 66 3. Permit Type: 4-1_�New Renewal Modification (existing Permit No.) 4. project Type: Low Density _t/�Delcn(ion Infiltration Redcvclop,Gcneral Alta" Offsit'c, 5. Odier State/Federal Permits/Approvals Required (pact(-oppropriare blanks) LAMA Major Sedimentation/Erosion Control Z 404 Permit Ill. BUMT UPON AREA (Please see NC(C'211, 1005 thru 1007for appEcable density Lftniis) rainanr DraiBa� Basin Basin (Please &Ldica(e Mow Me design impervious area) Classification 1/ter' �V nki-ry Buildings Existing Built -upon Area Proposed Built -upon Area Total Project Area % Built -upon Area Ac_ 23,QA' IV. STORMAYATER. TRF-ATINIF-NT (Dcjcribe how the runaffKillbe neared) Streets I Cr Parking/S Odier Totals -5, 9 dc- It •r a ;,f -? -i iFd cox-1'fry F'�^KX.,eez+F:u^• p •,ri.'S �t ;e ,ir- :-;� •� 4 - ,-. ��:; - ' .a< . -' �1v; • y� tip, PEED RESTRICTIONS AND PROTEC WE COVENANTS Deed restrictions and protective covenants are required to be recorded for all low density, proje subdivisions prior to the sale of any lot. Please see Attachment -A for the speck items that must be recorde type of project applied for. *.. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the items required by the permit, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the covenant cannot be changed ar deleted without concurrence from the State, and that they will be recorded prior.to the sale of any lot. VI. OWNER'S CERTIFICATION 1, l�jG� rn i�S �Q� V— Y) , certify that the information included on this permit (Pleare print rkarly or type) ' application form is -correct, that the project.will be constructed in conformance with the approved plans, that the deed restrictions will be recorded with aH required permit conditions, and that to the best of riq'knowledge, the proposed project complies with the requirements of 15A NCAC 2H_1000. below named person or firm to submit stormwater plans on my behalf. Q orized AgSignature and Title DateVU. AGENT AZer/Authent TION (Plcasc fr11 in the name of the engineer/surveyor authorized to submir plans an the owner's behalf.) Person or firm name �L• �n't` `E- SSoc Mailing Address 0 3 city_ State %U zip a 3 d Phone i1l-'^ 2,/ 3. Please submit application, fee, plans and calculations to the appropriate Regional Office cc: Applicant/Central Files Office use only s. ,�. i�:.�i, exs '�-r��eNvsf.:.(� tia. �4, w +i:°.GdZ-���r.,�;[ r,�tas,{Y; "�?ii wi�71�•��"} tt��k �%clia'H?� i��Psw{!,`({�. ce�yr.^i. 1^ j r I a i r ,',, Z. .:.� � �� a � �.�} T�Jy. C��r �r � i,• � ty �. �'.��rl�a � ra_,s - lc���Y.�h r Sri i - -. c.E - f•; - i ! .i. a i 9'y .b.L,•v, r:E.,1.✓t r�'.��.,.,,r, 1r +�js> 7, ( '. TO' : ken brightr.PO'8o'x #7 P_inebluff, NC 2837,3=0007-USA From,'Chip The following provisions shall be added to restrictive, covenant§Jor the subdivision, Covenant Place: 1. Developer shall maintain common areas, recreation area and detention ponds, for two years or until such time as they shall become the property of the homeowner's association, whichever is longer. 2. At such time as fifteen lots have been sold by developer, the homeowner's association shall become effective. At such time as the homeowner's assocation shall become effective, developer shall transfer -to. .ri the.assocation•the common areas, the recreation area and the detention { ponds. However, the developer agrees to maintain the common areas, recreation and pond areas, for two years. • ' " (ia 6e`provided by DWQj t Sa'teFof'Noith Carolina Department of - Eririroitment'and Natiiral Resources Division•of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DF IT_N710N BASIN SUPPLEMENT This form may be photocopied for use as. an original DWQ Stormwater MansMn-pent Plap Review: A complete stormwater management plan submittal includes a wet detention basin supplement for each basin. design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed operation and maintenance agreement 1. PROJECT INFORMATION (please complete the following information): Project Narm : . 00 ,j T- r'4o Contact Person: T r-, c-,st r'Phone Number: 610 SE For projects with multiple basins, specify which basin this worksheet applies to: Zon r�, ff 1 Basin Bottom Elevation 84 ft. Permancnt Pool Elevation 95 ft. Temporary Pool Elevation '?6.3 - ft. (average elevation of the floor of the basin) (elevation of the orifice) (elevation of the discharge structure overflow) Permanent Pool Surface Area 22?8 sq. ft. (water surface area at the orifice elevation) Drainage Area 23 ac. (on -site and off -site drainage to the basin) Impervious Area 4.14- ac. (on -site and off -site drainage to the basin) Permanent Pool Volume 56 MP— cu. ft. (combined volume of main basin and forebay) Temporary Pool Volume i 77 7.5 cu. ft. (volume detained above the permanent pool), Forebay Volume //6L% cu. ft. SAIDAI used _ 0� Dd g� (swface area to drainage area ratio) Diameter of Orifice 2 in. Design TSS Removal % (85% TSS removal required, see item k below) II. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have been met and supporting. documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. Form SAT-102 January M8 Page 1 of 2 —. .......-. .. I___— IInI m 11-_�(1 I.Hl11J C'Ca.4T •OCCT_+'n_11L-11.1 a. kW5 . -ram *-"^'.-�'+ ��•�,,, r t The •temporary pool -cont roIs. runofffrom the 1 inch storm event. b. The basin length to width ratio -is greater than• 14. c. The basin side slopes above the pernaaaent-pool are no steeper than 3:1. w� d. A submerged and vegetated.perawter shelf at less than•6:1 is provided (show detail). e. vegetation above the permanent pool elevation is specified, f. An emergency drain is provided to empty the basin. I'" AO �'�' � c , p,E,s,y y ,c,pa•� &&)6 g: The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). u1 h. The temporary pool draws down in 2 to 5 days. i. A trash rack is provided for both the overflow and orifice. Xl(/Q 1. The forebay volume is approximately equal to 20% of the total basin volume. k. Sediment storage is provided in the permanent pool. ki !/3_ 1. A 30-foot vegetative filter is,provided at the oudet2 (include erosive flow calculations) Wjl_L_ 6E ?� (3'� m. Recorded drainage easement for each basin including access to nearest right-of-way. X n. A site specific operation and maintenance (O&M) plan is provided. 6 o. A vegetation management/mowing schedule is provided in the O&M plan. P. Semi-annual inspections are specified in the O&M plan. Jl �� q. A debris check to be performed after- every storm event is specified in the O&M plan. xu/d r. Specific clean -out benchrnark ,Are specified in the O&M plan (elevation or.depth). s. A legally responsible party is designated in the O&M plan3 (include name and,title).<.: t. if the basin is used for sediifnent-and erosion control during construction, clean out of the basin -is specified to be performed prior to use as a wet detention basin. tnoteA- t When using the Division.SA/DA rabies, the correct SAMA ratio for permanent pool sizing should be computed based upon the aCftW'inrQcMOU % and perm mat pool depth. L• in= interpolation should be employed to detertnine.thc correct value far non- standard table enbies. 2 The requirement for a vegetative biter may be waived if the wet dctendon basin is designed to meet 90% TSS removal. 3 The legally responsible parry should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been faamed the president Form SAT-102 January 1998 Page 2 of 2 Sheetl ROUTING FOR RISER/BARREL SPILLWAY WITH EMERGENCY WEIR PRgJECT. COTHRAN _POND tj4 FILL.- "• C:\KEN\KENEXCELIROUTINGICOTHRAMCHAINKEN DATE:,.-* . 4/7198 INPUT: = pr = - 24 i6 ia._ rises '.::.: : - Q :_ • = 43 Q PEAK DISCHARGE Eto .-. 5.3 ft:. Elev.ao :_: = T �# 29.61 TIME OF PEAK CYvr. = . 3.3 RfSer weir eoefffciBrit _ ' di = :: _:: 3 TIME INCREMENT(T /10) Cdr = 0.59 RIs& orifice:Ca2ffclent ' Ks-- :12962 FROM PREVIOUS CALCULATIONS ::. b'= 1.18 FROM PREVIOUS CALCULATIONS Db =. ...15 in.. Barrel ilia.. = Area =:: 1.23 sf. area of Barrel 0 ft. Elev inu.: Q full.barrel-% 4.6 cfs Cdb =. 0.59 Bartelorrifice do®ffiblent° instal Oo elev;= 95.00 'PIPES i01 lal stor`�' :: .26567 cu.ft. barrel Inv el&. = : 91.00 ft. EMERGENCY.WMR:.. `• ; '. - top elev riser:= ; 96.30 ft. Cw - 3 Welr. coefficlent' : = : elev �emer. wler = 98.60 ft. cr =. .: 7.6 ft.. Elev Welr: crest . # w.= � 10 WO r length, .. page 1 -s Sheetl TITLE: STORM WATER POND #1 FILE: MICROSOFTIEXCELICOTPONDI DATE: 2J3M COMPUTE IMPERVIOUS AREA TOTAL AREA = 23 AC TOTAL LOTS = 33 IMPERVIOUS AREA ESTIMATE UPON COMPLETION: ASSUME FOR ONE HOUSE: FOOTPRINT = 2400 SF DRIVEWAY = 720 SF SIDEWALK = 100 SF DW +SW AREA = 0.62 AC. OUTBUILDING = 500 SF BUILD. AREA = 2.20 AC. TOTAL = 3720 SF FOR ONE HOUSE TOTAL HOUSE IMP. = 122760 SF ESTIMATE 'f O4- 3 ROADS IMPERVIOUS: COMPUTED IMPERVIOUS WIDTH OF ROAD = 20 FT. # OF CULDESACS = 2 TOTAL LF FULL ROAD = 1400 LF 28000 SF HALF ROAD LENGTH = 2200 LF 22000 SF CULDESAC DIA. = 35 FT 7693 SF IMPERVIOUS FOR ROADS TOTAL = 57693 SF ESTIMATED 1.32 AC. ESTIMATED IMPERVIOUS AREA ESTIMATED = 180453.00 SF OR 4.14 AC. % IMPERVIOUS = 18.01 % STORAGE: POOL DEPTH ASSUMED = 3 FT CALCULATE SURFACE AREA REQUIRED: L 10 % YIELDS 0.59 % 18.01 % YIELDS X % 20 % YIELDS 0.97 % BY INTERPOLATION SURFACE % = 0.89 % ACTUAL SURFACE AREA = 0.21 AC. OR 8961.16 SF VOLUME TO BE CONTROLLED FROM 1' STORM: SIMPLE METHOD AS DESCRIBED BY SCHULER(1987) STORM TO BE CONTROLLED = 1 INCH Rv = RUNOFF COEFFICIENT STORM RUNOFF IN INCHESISTORM RAINFALL Rv = 0.05+0.009(IMP%) Rv = 0.21 INIIN VOLUME RAINFALL FOR 1 " STORM = 0.41 AC. FT. OR 17708.48 CU. FT. POOL SHOULD AVERAGE 3 FT DEEP: CLEANOUT PERIOD = 5 YEARS SEDIMENT POUNDS = 4 TONS/ACRE OR 1600.00 CFIACRE WEIGHT OF SOIL = 115 LBSICF (ASCS) PERMANENT POOL VOLUME = 26683.486 CF MIN. SEDIMENT VOLUME FOR PERIOD = 8000.00 CF FOR 5 YEARS l' RAIN STORAGE = 17708.48 CF MIN. VOLUME TO SPILLWAY LEVEL = 52591.96 CF ACTUAL STORAGE SHOULD EXCEED THIS VOLUME Page 1 Sheetl OUTPUT: TIME INFLOW STORAGE STORAGI STAGE STAGE TOTAL'' RISER RISER, BARREL, PRINCIPAL EMERG. (min) cfs (cu. ft. L - (acre ft.) ABOVE INV ELEV :N�T.FLo 7 (weir) VILLWAY WEIR - ft. ft. cft cfs cf6, cfs. - cft cfs 0 0 26567 0.610 4.00 95.00 0 0 -0 0 0 0 3 1 26567 0,609894 4.00 .95.00. 0 0. .0 il 0 0 61 4 26761 0.614 4.03 95'03 -0 m .0 lil 0 0 9 9 27519 0,632 4.11 95.11 0- 0'- 0 11 0 0 12 15 29154 0.6691 4.26 95.26 o o o pill ;o 0 15 22 31889 0.7321 4.47 '95.47 .0. 0 :0 '11 0 0 18 29 35839 0.8231 4.75 95.75 0 0. 0 12 0 0 21 35 40996 0.941 5,10 96.10 0. 0 01 12 0 0 24 39 47230 1.084 5.48 .96,48 2. 6 13 2 0 27 42 54009 1.240 5.89 ".96.89 9' :9 .11 13 9 0 30 43 59918 1.376 6.23 97.23 14 = 19 14 14 14 0 33 42 65184 1.496 6.52 '97.5-2 14 28 .16 14 14 0 36 381 70140 1,610 6.79 97.79 . . .14 .38 18 .14 14 0 39 341 74431 1.7091 7.03 98.03 15 47. 201 1 .15 15 0 42 30 77851 1.787 7.21 98.21 15 55 21 A 15 0 45 26 80485 1.848 7.35 98.35 15 61: 211 15 -151 0 48 23 82436 1,892 7.45 98'.45 15 65 22L 15 151 0 51 20 83792 1.924 7.52 .'98.52 15 69 221 _ 15 15 0 54 17 84629 1.943 7.56 98.56 15 71. 221,.. 15 15 0 57 15 85016 1,952 7.58 .98.58 15 72. 22 15 15 0 60 13 85012 1.952 7.58 98.58 .15 '72. 22 15 15 0 63 12 84668 1.9441 7.57 .98i57. 15 71 22 .15 ..15 0 66 10 84031 1.929 7.53, 98.53 15 69 .22 .15, -15 0 69 9 83139 1.909 7.49'1 .98.49 .15 67, -22 .15 151, 0 72 8 82028 1.883 7.43 98-43 151 64 22 15 15 0 75 7 80728 1.853 7.36 98.36 151 .61. 21 15 15 0 78 6 79266 1.820 7.28 98.281 :151 58 21 15 15 0 81 5 77666 1.783 7.20 98.20 151 54 20 15 15 0 84 5 75947 1.744 7.11 ..98.11. .15 50 20 15 15 0 87 4 74130 1,702 7.01 98.01 15 46 191 15 151 0 90 4 72228 1,658 6.91 '97':91 15 42 -.,19 15 .15 0 931 3 70257 1.613 6.80 97,80. 14, 38 18 ..:14 14 0 961 3 68228 1.566 6.69 97.69. .14 34 18 14 :.14 0 991 2 65153 1.519 6.681 �97.58 -30.1. 17 .1.4 14 0 1021 2 64041 1.470 6.46 97.46 ..:::14. .:261 .:.16 7.141. �14 0 1051 2 61900 1.421 6.34 :97:34 14 22V.:.. 15 ...141 141 0 1081 2 59738t 14371 6.22 :97.22 14. '18.1 :- 14+ . 141 .14J 0 Page 2 5heet1 111 1 575621 97.09 '13 15 13 14 13 114 1 ..-.55435 . 96.97._=:' 11: 1�.-,., ->12.....-: .13 . 11 117 :; :1 :: '53610 74.273 ,, F�l :, _ 96:86.::_9 :°:13 _:: 9120 -:1 52223 -: " ; : : 96.78 - 7 : 7 .10 :13123 " 1 : 51142 - : 96.72 fi ' ' : - 6 10 � ` _ 13 . 6 126 :1 50279 1.154 5:67 : ' :.: ;96.67.. ; • 5 . :. , . 5 ... .: g • 13 :. .5 _ . 129 :. .-1 49578 1:138 .. -. 5:63 -:' 96.63 ': .' 4 _ :.: ::'4. = :8 : -':-i3 :: ::::'..: 4 132 = 1 ' 48999 1.125 5.59 : 96.59 3 _ = :.3 : :8 . : 13. 3 " 135 0 48514 ` 1.114 : . 5.56 - -96:56 .3 3 8 - ; .13 : - :.:3 138 0 48102 1.104 5.54 96.54 2. -2.'` -:7 `- _ 13 : 2 141 0 47748 1,096 5.52 96.52 2 :. 2 `7 7 : s 131 2 144 0 - .47442 .1, 089 ' 5.50 . ..96. 50 2 -2 : ' 1 .7 13 2 RISER4AIkREL ROUTING - .... 45 >fi}t,rr� pf sit rt (;1i'4 s �t �FdY"f,�7(Nj£ 4q- � �'S•f t;a11 Y� i�� i�� t t ,(p5 t € : .r`� h� �4. ��'1` 7131�J"t�,sue`+a:w 30 �i�Jg�f��� t t�Y i���1 � rr'ga�� i `�41�s�i•'�1" �s� > r�s �C"i��Y�� *„ ''s�.fi1i°ti 25 fScpL4���� S1,P S r+t YS b v' t iSt iv S �q� �JL a� ° ��1� y���vi�•,� r! , ky�y tV ��� ! ���A•���5�� r�`�,Lt� j s: ����4 y ti t( 8 'MF%q' c<2.,v,:;?�.;&�•.'+��3Y ,.�. '�P"...,'�i:# {��t�.cf'L! ., YVItlVdWN .k"f, TIME (min.) - _ - " page 3 Sheetl DETERMINE RUNOFF AND -AND•PEAK JUTfLIZES L-COLMS CHAfNSAW-METHOD PROJECT: COTHRAN POND-#1,-WHISPERING.pINES FILE: C:1KENIKENEXCELIROUTINGISTAGSTOR ' DATE: W7198 DETERMINE.Qp for 10 Year storm: INPUT: AREA- 23 AC- -Coeff = 0.3 FT BAS: -LENGTH = 2100 FT BAS. HEIGHT= 90 '' OUTPUT: Tc=. 9.50 -Min_ Kirpich'Equation :Equation 12-Malcafin 110 = 6.19 '.In/hr.. See fDF:Equation'1=3 Exhibit-#ZMaWrn 10 = 43 'CFS Rational E uation.l-1 COMPUTE DEPTH OF RUNOFF and T : INPUT: 1? = 3.90 in From-Exhibit.#2 Malcolm -10yr, 6 hr.precip..,Rafeigh, N Soils Group = B From. Soil. Erosion Manual -Page 8:03.8.SC.• Method CN = 70 : From -Soil erosion -Manual -Tabie 8.03b CN Table OUTPUT: S =. 4.29 ultimate soil storage . 1.26 in- 10 yr:, 6hr Runoff Depth NOT FLOW Tp = 29.61 Min ` STAGE -STORAGE FUNCTION: CONTOUF INCR. ACCUM. CONTOUR AREA VOL. VOL _STAGE in -Storage in Z Z est. 95 12,228 0 96 14276 13252 13252 1 9.491904 -0 1:018951 97 16443 15359.5 28611.5 2 10.26156 0.693147• 1,957403 .98 18797 17620 46231.5 3 10.74142 1.098612 2:940 83 99 21427 201-12 - -66343.5 4 11.1026 -1.386294 •3:994856 100 23727 22577 88920.5 -5 11.3955 1,609438 .5.121 14 Reciression Out ut: Constant -9.469771 Ks = .12962 Sid Err. -Of Y Est. 0.028821 b = 1.18 R Squared -0,998891 No. Of Observations 5 Degrees of Freedom 3 X•Coefficient(s) 1.178932 Std- Err of Coeff. 0.022676 Page 1 Sheetl STAGE STORAGE FUNCTION 12�"z j0 —Ay��y�rs�v-`a�ylg, 't,a-.a^ 2 wgg 8 or "�i...'�r C s W 2 u .� Ea ti < f 23 ` 4' 5 6- In Z Page 2 Sheetl in PROBABIUTY OUTPUT Page 3 Sheetl SEEM Page 4 Sheetl Barrel hot hill LOOK URTABLE Pardpok Equation stale" ON Y: - X :o 0 0:10 0 0.19 0 0.28 0 0.36. i 0.44 1 0.51 1 0.58 1 0.64 1 0.70 1 0.75 1 0,80 1 0.84 2 0.88 2 0.91 2 0.94. 2 0.96 2 0.98 2 . 0.99 2 1.00 2 1,00 3 0.8 71.07 0 0.000 0.00 0 0 0 0 0 0 Page 5 _ i Sheetl Page 6 t##,3 POND #1 ELEV ABOVE 95' 4/2/98 #Units=Elevation,ft,Area,mi2,Volume;ft3,Volume,ft3 # Elev Area Cumml Avg Cumml Conic # ft mi2 ft3 ft3 a372)5 100.0000 0.0009 88925.5898 88862.4039 99.0000 0.0008 66348.2624 66294.8420 43,.�'-98.0000 0.0007 46235.501.5 46196.4211 s,,97.0000 0.0006 28614.7872 28588.8306 96.0000 0.0005 13253.7398 13240.5107 /l'ZL995.0000 0.0004 0.0000 0.0000 Page 1 trip # 3 COTHRAN POND #1.FOREBAY 418./.98 #InYht, s=Elevation; ft- Area; mi:2-; Volume-- ft3-; Volume, ft3 # Elev Area Cumml Avg Cumml Conic # f-t. mi2•• ft.3.. ft3 95.0000 0.0004 11605.6440 10945.4757 94-:0000­ 0":0001• 4.1.41-::5938­ 4054.,3298 93.0000 0.0001 2079.1603 2025.4906 92•. 0000 • 0...0000 9.1.7..8351., 8' A,.3.218 91.0000 0.0000 248.8919 218.7432 90.. 00001• 01. 0000 0•. oa0o" 0..'0000 D'�e Poop Vv4, �6083Gr— Soot/ . C , 3/-/ 8g3 C-`�:7 ZCP> 134493 G,c Page- 1 DA� tmp ## 3 COTHRAN POND 41 MAIN POND 4/8/98 ##Units—Elevation,ft,Area,mi2,Volume,ft3,Volume,ft3 ## Elev Area Cumml Avg Cumml Conic ## ft mil ft3 ft3 95.0000 0.0004 24775.5269 24525.7078 94.0000 0.0002 15781.1856 15731.9368 93.0000 0.0001 10869.0712 10844.3905 92.0000 0.0001 7173.5562 7155.0272 91.0000 0.0001 4179.0988 4166.7308 90.0000 0.0001 1812.3597 1806.1661 89.0000 0.0001 0.0000 0.0000 Page 1 S DITCH DESIGN PROD: Covance Subdivision DATE: 213198 FILE: diteftothranlpondl INPUT: Swale #: 1 description: Swale at pond alternate 3:1-clay soils on swale upstream use: Residential USE known area = 13.5 as USE known C = 0.3 SKIP area = 0.5 acres woods e 0 so. road C 0 so. residential = 0.5 so. SKIP Cwoods= 0.4 C-road = 0.75 C residential = 0.3 SKIP so, building- 0 so. gravel = 0 so. suburban= 0 SKIP C-roof - 0.95 C-gravel = 0A C suburban = 0.25 so. soil type: sand/clay • weighted C . 0.30 C n 0.30 from table 8,03a runoff coefficient or from welghted-c from above To = 5 minutes; calculate based on,Fig.8.03a, use 5 Hnotes min. 12 = 5.5 In per hr for Raleigh Fig 8.03e length = ft 110 = 9.5 in per hr for Raleigh Fig 8,03e rise = ft type channel: TRAPEZOIDAL Width = 14 if triangular must be zero channel slope b 6 % side slope = 3 ft per ft OUTPUT: 02 = 22.28 cfs Q10 = 38.48 cfe Grass checkPERMANENT use figure 8.05c Mannings'n' for grass- make sure HR times velocity yields same n nraaa tvna' usa fascua which has a velnelty canacltv.of 4_94ns fey slmia [ 6O/ grass condition depth ft. Q cis 38.48 n HR times Val chart HR times Val calculatei computedp comments velocity fps area.of channel s . ft. HR-hydraul radius Wetted Perimeter ft. op width low D 0.48 38.82 0.04 3 2.3 5.24 7.41. 0.44 17.04 2.88 D 0.61 38.99 0.06 1 2.2 4.04 9.66 0.54 17.86 3.66 O 0. 5 39,18 1.5 2.2 1 okay for n vel, & Q 4.55 8.61 0.49 17.48 3.3 c 1.45 177.48 0.06 1.7 7.7 -okay for n vel, & Q 6.67 26.61 1.15 23.17 8.7 c 1.69 171•57 0A7 1.4 7,2 5.93 28.91 1.21 23.80 9.3 c 1.35 187.37 .05 2.4 8.3 1 7.691 24.37 1.081 22.54.1..8.1 use aeDtn = 1.0 n. TEMPORARY: if velocity greater than 2 fps on bare earth then use,Wniborary liner for temporary liners'n' see table 8.05e, fog riprap,see table.8.05f bare earth n = 0.02 table 8.05b channglilihings use 02 = 22.28 cis since temaorarV66ndkl6n condition depth ft. Q cfs 22.28 n comments 1 velocity area 1 hydraulic radius Wetted Perimeter ft Top width ft. bare earth 0.65 130.431 0.02 depth okay:liner r 'd 12,58 10.37 0.57 18.11 17.9 excelsior 0.35 25.96 0.435 okay' . !.. 4.93 5.271 0.32 16.21 16:1 sneer stress = i .3i to per sqjt., tomwla i _ yas, a e .uo. i'L KI ;rap I = 3.0 It]!S ,tt. comments: use excelsior mat Excelsior T -1.55 lb1s .ft. I see table 8.05g fat allowable;stress 0 DITCH DESIGN PROD: Covance Subdivision DATE: 4/8/98 PILE: c:\excglken\ditchldothran\pondlpri INPUT: Swale B: - 3 description: Swale at outlet of primary pipe Q from other calculatioms-pogram modified Lae: Residential noun area 'ac". known C knoirn Q - 15 cfs. area A 0.5 acres_ woods 0 ac: road 0 ac. residen 0.5 ac. USECwoods-� 0.4 C-road 0.75 sidential - 0.3 USE ac. building- 0 ac. grave 0 ac. subur 0 USE C-roof'- 6.95 C7gra6el 0.4 suburban= 0,25 ac. sdil type: sand/clay weighted C = 0.30 C = 0.30 from table 8.03i runoff coefficient or.from weighted c from above Tc 5 minutes; calculate based on Fig:8.033; use 5 minutes min: I2 5.5 in per hr for Raleigh 'Fig length - ft 110 1.5. in per hr for Raleigh Fig rise - ft type_ channels TRAPEZOIDAL width a 16.5 if triangular must be zero channel slope - 0.5 . slope - 3 ft per ft OUTPUT: Q2 cfs Q10 = 15.00 cfa Grass the PERMANENT use figure 8.05c Manning 'h' for grass- make sure HR times velocity yields same n grass type: use fescue which had a velocity capacity of'4.5 fps for slope < 5% " grass depth ft Q cfs n HA times HR;times cdmments velocit area of HR-hydrauYietted Top width condition_ 15.00 Vol char Vel caltul fps' channel radius Perimeter ft. low. computed: sq.' ft�. ft.: D 0.73 15.35 0.07 0.7 047 okay for n vel, & Q 1.12 13.64 0.65 21.12 4.38 D 0.66 15.07 0.06 1 017 i;24 12.20 0.59 26.67 3.96 D 0.6 15.36 0.05 1.5 Ole i:40 10.98 0.54 20.29 3.6 c 0.9 15.41 Q,1 0.8 0:7 0.89 17.28 Q.78 22.19 5.4 c 0.95 15.38 0.11 0.7 017 okay for n veil, & Q 0.84 18.38 0.82 22.51 5:7 c 0.78 15.05 0.08 1.1 0,7 1:02 14.70 0.66 21.43 4.68 uge depth 1:5 it. TEMPORARY: if velocity gieatei than 2 fps on bare earth then uae.teinporary liner for temporary liners 'n'. see table 6.05e „ for. riprap'See table:8.05f bare earth n 0,02 table 8.05b:6hannol linings use,Q2 .6.00 cfs_ since temporary condition condition depth €t Q cfs n comments velocity area hydraul Wetted Top width 15.00 radius Perimeter ft. bate earth 0.35 15.40 0.62 depth Oka liner req 2.51 6.14 0.33 28.71 18:6 excelsior. 0.48 15.01 0.035 okay, 1.74 8.61, 0.44 19.59 19.3d shear stres 0.15 lh per sq- ft7 fgrmula T e ydsj pa Rip -lap T a 3.0 lb/sq:ft. comments: dge excelsior mat Excelsior 1.55 lb/sqi see table 8 05g for allowable stress 41 ef 41-L 3XO( , K /1 12 S-'/ --- ?. ) 5-