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HomeMy WebLinkAboutSW6100704_HISTORICAL FILE_20100722STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SWw�(�UZD� DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD July 15, 2010 Carolinas Golf Association PO Box 319 West End, North Carolina 27376 Attention: Mr. Jack Nance "ENR-FRO Re: Supplemental SHWT and Soil Infiltration Rate Testing JUL 22 2010 Proposed CGA Headquarters Pine Needles Country Club DWO 1010 Midland Road Southern Pines, North Carolina Terracon Project No. 70095057 Dear Mr. Nance: Terracon Consultants, Inc. (Terracon) has completed the supplemental seasonal high water table (SHWT) and soil infiltration rate testing for the above referenced project. Terracon consulted with a licensed soil scientist to perform the field work for the project. A report prepared by the soil scientist is enclosed that contains results of the SHWT evaluation and infiltration testing. The report indicates that no SHWT was identified to a depth of 13 feet below the existing ground surface at the site in the vicinity of the proposed storm water infiltration basins. Two infiltration tests were performed at depths corresponding with the elevations of the base of the proposed infiltration basins at accessible locations at the site. Based on the results of the permeability testing, the soils at the site are relatively free draining exhibiting infiltration rates of 35 in/hr and 55 in/hr. The soil and groundwater conditions encountered in the current test borings are similar to those encountered during the previous exploration for the proposed CGA headquarters (see Terracon Project No. 70095057 dated October 28, 2009). We appreciate the opportunity to be of service to you on this project. If you have any questions, or if we may be of further service, please contact us. Sincerely, Terracon Consultants, Inc. ARaymo "Levi" Den on, II, P.E. Geotechnical Manager Enclosures: Seasonal High Water Table and Permeability Evaluation cc: 2 -Addressee cc: 1 -File Terracon Consultants, Inc. 5240 Green's Dairy Road Raleigh, NC 27616 ` P [9191 873 2211 F [9191873 9555 terracon.conn FRED D. SMITH SOIL CONSULTING. INC. July 12, 2010 Mr. Levi Denton Terracon Engineering 5240 Green's Dairy Rd Raleigh, NC 27616 Subject: Report of a Soil Evaluation for Stormwater Treatment Ponds Pine Needles Golf Course Southern Pines, NC Dear Mr. Denton, This letter concerns the soil evaluation I performed at the above mentioned site in Southern Pines, NC. You authorized me to perform a soil evaluation of the surface soils on the site, to determine the depth to the `seasonal high water table', and to perform in -situ soil permeability testing in the vicinity of the proposed stormwater ponds. The work was done in general accordance with the rules for stormwater disposal { 15A NCAC 02H .1008 (d)). You provided me with an existing and proposed site plan showing two proposed stormwater ponds. I was asked to perform one permeability test in each pond area. However, due to electrical and water utilities in the traffic island I could not perform a boring in that area. I did two tests in the vicinity of the pond closest to the street. My work consisted of several hand auger borings to observe and describe physical properties such as texture, color, structure, consistency, depth to seasonal or perched groundwater, parent material, and restrictive horizons. The attached drawing shows the hand auger boring locations at the site. Soil descriptions are shown on the soil permeability test form. The soil at the site is sand to a depth of more than 13 feet beneath the surface. No evidence of seasonal high groundwater was present to 13 feet. Groundwater was not encountered. The soil permeability was measured using an Aardvark Soil Permeameter. The Aardvark Permeameter maintains a constant head of water in a bore hole. The rate of water movement is measured over time. The results are entered into an Excel spreadsheet program that computes the,permeability value in inches per hour. Prior to actually beginning to measure the rate of water movement, the hole is soaked so that pore spaces in the natural soil are saturated. The test locations are shown on the attached drawing. Tests I and 2 have saturated hydraulic conductivities (permeability) of 35 inches per hour and 55 inches per hour, respectively. Test 1 was performed at 72 inches beneath the surface. Test 2 was at about 100 inches beneath the surface. Office/Mobile (252) 908-4369—Fax (252) 459-7798 Post Office Box 1175 — Nashville, North Carolina 27856 I appreciate the opportunity to work with you on this project. Please contact me if you have questions or need additional information. Cor pally, Fred D. Smith Licensed Soil Scientist Soil Descriptions HA1 Percolation or Ksat Rates using Aardvark Soil Permeameter Perc Rate: min/in Ksat: 35 in/h LR: gdsf Site: PINE NEEDLES Date: 715/2010 Operator: FDS Boring Number: 1 Soil Series: LAKELAND-like Soil Horizon: C Boring Depth (in) : 72 Diameter of Hole(in): Water Column Height (in): F_731 Head Conversion Factor (HCF): 1.2 Boring Conversion Factor (BCF): 1.65 Design Loading Rate = Ksat•14.96'safety factor of 0.05 to 0.5 system dependent Boring Conversion Factor (BCF) = (rad)squared/5.06 for Aardvark Reservoir BCF of 4 in auger is 4.25 in diameter boring = 1 BCF of 3.25 in auger is 3.5 in diameter boring = 1.65 BCF of 2.75 in auger is 3.0 in diameter boring = 2.25 Head Conversion Factor (HCF) = Water Column Ht inches / 6 inches, or Htcm/15cm Example is 3.5in boring with 7 in water column in boring, 0.5 in head drop over 45 minutes in a structureded clay loam soil F Value (Radcliffe and West, 2000) Borehole diameter Texture 3.5 in 4.0 in 3.0 in Sands 0.107 0.124 0.09 Structured loams and clays 0.082 0.096 0.068 Unstructured loams and clay 0.048 0.057 0.041 Time TO Time x Time Hours Reservoir Reservoir Reservoir Percolation BCF HCF Percolation F value Ksat Design Loading 2400 hours 2400 hours Elapsed Elapsed Reading, in Reading in Change Rate (miNin) Rate from table = F(1/P) Rate gdsf tl t+1 (ti+1)-ti dt/60min/hr hi h+1 (h+1)-hi dt/dh Adjusted with a 0.10 dt dh (P`HCF)/BCF Safety Factor initial next initial next P Adj P of Ksat min hr in in in min(n miNin in/hr gdsf Example 08:00 8:45 45 0.75 14.5 14 0.5 90 1.65 1.17 64 0.082 0.08 0.12 0 0 15 15 0 #DIV/O! 1.65 12 0.107 0.00 1 0.016667 15 10 5 0.2 1.65 1.2 1 0 0.107 44.14 132.06 1 0.016667 10 6.5 3.5 0.285714286 1.65 1.2 0 0.107 30.90 92.44 1 0.016667 6.5 3 3.5 0.285714286 1.65 1.2 0 0.107 30.90 92.44 0.75 0.0125 3 0 3 0.25 1.65 1.2 0 0.107 35.31 105.65 0.00 0.00 0.00 0.00 STEADY STATE ARITHMETIC AVERAGE of last 3 readings 35 406 Pedon Description Depth Horizon Color Texture Structure Horizon Notes 0 to 6 A gr brown S s 6 to 33 C 7.5YR 5/6 S s 33 to 96 C 5YR5/8 S s 96 to 126 C 5YR5/8 S sg 7.5YR 7/4 streaks 126 to 156 C 7.5YR 5/8 S sg some loamy sand lenses and nodules Site Notes: Percolation or Ksat Rates using Aardvark Soil Permeameter Perc Rate: min/in Ksat: 55 in/h LR: gdsf Site: PINE NEEDLES Date: 7/5/2010 Operator: FDS Boring Number: 2 Soil Series: LAKELAND-like Soil Horizon: C Boring Depth (in) : 100 Diameter of Hole(in): Water Column Height (in): Head Conversion Factor (HCF): 1.2 Boring Conversion Factor (BCF): 1.65 Design Loading Rate = Ksat'14.96'safety factor of 0.05 to 0.5 system dependent Boring Conversion Factor (BCF) _ (rad)squared/5.06 for Aardvark Reservoir BCF of 4 in auger is 4.25 in diameter boring = 1 BCF of 3.25 in auger is 3.5 in diameter boring = 1.65 BCF of 2.75 in auger is 3.0 in diameter boring = 2.25 Head Conversion Factor (HCF) = Water Column Ht inches / 6 inches, or Htcm/15cm Example is 3.5in boring with 7 in water column in boring, 0.5 in head drop over 45 minutes in a structureded clay loam soil F Value (Radcliffe and West, 2000) Borehole diameter Texture 3.5 in 4.0 in 3.0 in Sands 0.107 0.124 0.09 Structured loams and clays 0.082 0.096 0.068 Unstructured loams and clay 0.048 0.057 0.041 Time TO Time x Time Hours Reservoir Reservoir Reservoir Percolation jBCF HCF I Percolation Fvalue Ksat Design Loading 2400 hours 2400 hours Elapsed Elapsed Reading, in Reading in Change Rate (min/in) Rate from table te gdsf ti t+1 (ti+1)-ti dt/60min/hr hi h+1 (h+1)-hi dVdh Adjusted h a 0.10 dt dh (P-HCF)/BCF ety Factor Initial next initial next P Adj P ain/hrgdsf f Ksat min hr in in in min/in min/in Example 08:00 8:45 45 0.75 14.5 14 0.5 90 1.65 1.17 64 0.0820.12 0 0 15 15 0 #DlV/0! 1 1.65 1.2 0.107 0.00 1 0.016667 15 8.8 6.2 0.161290323 1.65 1.2 1 0 0.107 54.73 163.75 1 0.016667 8.8 3.8 5 0.2 1.65 1.2 0 0.107 44.14 132.06 0.5 0.008333 3.8 0 3.8 0.131578947 1.65 1.2 0 0.107 67.09 200.73 0.00 0.00 0.00 0.00 0.00 STEADY STATE ARITHMETIC AVERAGE of last 3 readings Pedon Description Depth Horizon Color Texture Structure Horizon Notes 0 to 6 A gr brown S s 6 to 33 C 7.5YR 516 S s 33 to 96 C 5YR5/8 S s 96 to 126 C 5YR5/8 S sg 7.5YR 7/4 streaks 126 to 156 C 7.5YR 5/8 S sg some loamy sand lenses and nodules Site Notes: INFILTRATION BASIN NO., 2�(- DEPTH - IB' SUNFA E AREA AT a. 45L00' ((TiOP OE s'."' 1,45J' 4 SURFACE AREA AT EL. 450..H1' OR STORAGE) .1526 SG , E RE ERMANEW INPLTMDON BASIN SINLL BE HYDRO -SEEDED A VEGETATION ESIARUSHE0. SEE VNCS G PL S. INFILTRATION BASIN NO. 1 BEPIN - 15 SUXFALE AREA AT EL 450. W' (TOP OF SIOMCE) ].BBO sG SURFACE AREA AT EL MB]5' (BOTTOM OF STOWAGE) . 2,425 SF ENTIRE AREA of PFAWNW NHLTRATION aAsm SHALL BE M O—SEEDED AND PERM ENi YECETATION ESTABUSHED. SEE LWDSfIPING PLWS. L •, MURE / EGA HEADOUARE1151 !_ Y�. FAHiH PAD EiE. 451.10 YY `. 1 I CURB Tic- - �� INv 44v sa I 1 l Existing Fro S,ng10 Stor 1 Osne'oj * 0nstructi 11 4p FFE.t , 92es Fdng ' t PORTEECOCHERE 106. I ±� NNCIIOH BOA 12 EXISTING IB'CPP \ LW. N 446.56 sLovE _1sox, rm F„R,xr IrcPP @. DWQ USE ONLY Date Received Fee Paid P/ermit Number % D �(O Oa a Applicable Rules: (select all that apply) ❑ Coastal SW - 1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction ❑ Non -Coastal SW- FIQW/ORW Waters ❑ Universal Storm water Management Plan ❑ Other WQ M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This fornn may be photocopied for use as an original I. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Pine Needles Country Club 2. Location of Project (street address): P.O. Box 88 City:Southern Pines County:NCLip:28387 3. Directions to project (from nearest major intersection): From the Intersection of U.S. Hwy 1 and Midland Road, go west northwest along Midland Road for 0.5 miles, turn right on Ridge Road, project is on the left. 4. Latitude:35° 11' 46" N Longitude:-79° 23' 34" W of the main entrance to the project. IL PERMIT INFORMATION: ].a. Specify whether project is (check one): ®New ❑Modification b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number , its issue date (if known) , and the status of construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's certification �2-?—Specify-the type of -project (check one): ®Low Density ❑High Density ❑Drains to an Offsite Stormwater System ❑Other 37--If--this application.is-berg submitted as the result of a previously returned application or a letter from DWQ requesting a state stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major ®Sedimentation/Erosion Control: 3.6 ac of Disturbed Area ❑NPDESIndustrial Stormwater ❑404/401 Permit: Proposed Impacts b.lf any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit: Form SWU-101 Version 07Jun2010 Page I of6 III. CONTACT INFORMATION I. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the project): Applicant/Organ ization:Pine Needles Country Club Signing Official & Title:Kelly Miller b.Contact information for person listed in item la above: Street Address:P.O. Box 88 City:Southern Pines State:NC Zip:28387 Mailing Address (if applicable): City: Phone: (910 ) 692-7111 Fax: Email: check the appropriate box. The applicant listed above is: a property owner (Skip to Contact Information, item 3a) see* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) chaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and (Complete Contact Information, item 2a and 2b below.) 2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/ Organ ization:Pine Needles Country Club Signing Official & Title:Kelly Miller b.Contact information for person listed in item 2a above: Street Address:P.O. Box 88 City:Southern Pines State:NC Zip:28387 Mailing Address (if applicable): City: State: Zip: Phone: (910 ) 692-7111 Fax: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization: Signing Official & Title: b.Contact information for person listed in item 3a above: Mailing Address: City: State: Zip: Phone: ( ) Fax: Email: Form SWU-101 Version 07Jun2010 Page 2 of 7 4. Local jurisdiction for building permits: Town of Southern Pines Point of Contact:Brent Lockamy Phone #: (910 1 692-1983 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stonnwater runoff will be treated. Stormwater run-off will be treated with two (2) bioretention basins 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW -1995 ❑ Ph 11- Post Construction 3. Stormwater runoff from this project drains to the Cape Fear River basin. 4. Total Property Area: 10.62 acres 5. Total Coastal Wetlands Area: acres 6. Total Surface Water Area: acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area*:10.62 acres Total project area shall be calculated to exclude the following the normal pool of impounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landwward from the NHW (or MHW) title. Tile resultant project area is used to calculate overall percent built upon area (BLIA). Non -coastal wetlands landward of the NHW (or MHW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 21.66 % 9. How many drainage areas does the project hav ?1 (For high density, count T for each proposed engineered stontnwater BMP. For low density and other projecttsriise 1 for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Form SWU-101 Version 07Jun2010 Page 3 of 7 Basin Information - DrainageAreaT `Draina e-Area _ Drainage Area Drainage Area Receiving Stream Name McDeeds Creek \ Stream Class * /WSIII;1-IQW:<h Stream Index Number * / 18-23-11-4 Total Drainage Area (sf) 34,970 1 On -site Drainage Area (sf) / 34,970 Off -site Drainage Area (sf) 0 Proposed Impervious Areal* (so 22,416 / % Impervious Area** total \ 64.1 Impervious** Surface Area Draina e Area 1 Draina e Area _ Draina e Area Draina e Area On -site Buildings/Lots (sf) 8,964 On -site Streets (so 0 On -site Parking (so 60,838 On -site Sidewalks (so 8,650 Other on -site (sf) 0 Future (so 0 Off -site (so 0 Existing BUA*** (so 21,616 Total (so: 100,068 Strean Class and Index Number can be deternnined at: httn://nortaLncdenr.orp/webhnq(ps/csu/clnssifcntinns Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidetoalks, gravel areas, etc. Report only that amount of existing BUA that will remnin after development. Do not report any existing BUA that is to be removed and which Will be replaced by ne¢o BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. Computer See Map DA-5 in calculation book Projects in Union Cmmty: Contact DfpQ Central Office svtfifto check ifthe project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stornneater requirements as per NCAC 02B .0600. V. SUPPLEMENT AND O&M FORMS The applicable state storm water management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://12ortaLncdenr.ory/web/wq/ws/su/bap-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available fromhttp://portaLncdenr.org/web/wg/ws/su/statesw/forms does. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at httLi://poitaLncdenr.org/tveb/wq/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from httLi://kiortal.ncdenr.org/web/wq/ws/su/statesw/fornts_Liocs. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to ✓ http://www.envhelp.org/pages/onestopexpress.litntl for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) FormSWU-101 Version07Jun2010 Page 4of7 5. A detailed narrative (one to two pages) describing the stormwa ter treatment/managementfor the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the receiving stream drains to class SA waters within'h mile of the site boundary, include the V2 mile radius on the map. 7. Sealed, signed and dated calculations. 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control measures. in. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated SFIWT elevations (Please identify elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule o site visit for DWQ to verifij the SHWT prior to submittal, (910) 796-7378.) —ice 10. A copy of the most current property deed. Deed book: MB 1,2,3 Page No: 45 31 60 T18C � t hS" 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC -- Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 21-1.1003(e). The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned. http://www.secretary.state.nc.us/Corporations/CSLarch.aspx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from ham://portal.ncdenr.org/web/wq/ws/su/statesw/forms_docs. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ and that they will be recorded prior to the sale of any lot. Form SWU-101 Version 071un2010 Page 5 of 7 Vill. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information). Consulting Engineer:Thomas K. Goodwin, PE Consulting Firm: Hobbs, Upchurch and Associates, P.A. Mailing Address:P.O. Box 1737 City:Southern Pines State:NC Zip:28388 Phone: (910 ) 692-5616 Email:tgoodwiii@liobbsupcliurch.com Fax: (910 ) 692-7342 IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) I, (print or type name of person listed in Contact Information, item 2a) Kelly Miller , certify that I own the property identified in this permit application, and thus give permission to (print or hype name of person listed in Contact Information, item 1a) with (print or type name of organization listed in Contact Information, item la) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment facility without a valid rant. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of C it. Statue 143-215.1 and may result in appropriate enforcement action including the assessment of enaltiess of to 5,000 per day, pursuant to NCGS 143-215.6. Signature: / Date: / % A44 I, SA r �/LA n0P62MAn/ , a Notary Public for the State of �%� County of AA66&E do hereby certify that I�CELLY R - I"rl1i62 personally appeared before me this 1k day of ::S t k-L4 O b, and a knowledge the` ue execution of the application for a stormwater permit. Witness my hand and official seal, SANDRA COOPERMAN NOTARY PUBLIC MOORE COUNTY, INC SEAL My commission expires �/2���I Form S WU-101 Version 07Jun2010 Page 6 of 7 OL!r,k.iq yj: X. APPLICANT'S CERTIFICATION 1, (print or type name of person lister! in Contact Information, item 1a) certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be�istructed in conformance with the approved plans, that the required deed restrictions and protective covenapXs will be recorded, and that the proposed project complies with the requirements of the applicable storm r es un r 1 2H .1000, SL 2006-246 (Ph. II -Post Construction) orrSSSL 2008-211. Signature: / Date: 711P ` 0 I, t Ne�R� �� IE�I "N a Notary Public for the State of / Y C County of t do hereby certify that kaJ� L/ k- V A�1 ('rR personally appeared before me this day of -suLg 20(., and anowlledge the e execution of the application for a stormwater permit. Witness my hand and official seal,, Aeai SANDRA COOPERMAN NOTARY PUBLIC MOORE COUNTY, NC SEA]. My commission expires D � L21(II Form SWU-101 Version 07Jun2010 Page 7 of 7 :/A1iFrzi `t0OJ ArwHr�Ll 01-11OU9 YFIATOA ONA ,YTAUO0 EPOOM TRANSMITTAI ® Hobbs, Upchurch & Associates, P.A. Consulting Engineers P.O. Bor 1737 300 S.W. Broad Street Southern Pines, North Carolina 28388 (91 i1) 692-5616 FAX (910) 692-7342 TO: Mike Lawyer IiUA PROJECT # S110917 225 Green Street Suite 714, Systel Bldg. Fayetteville, NC 28301 FROM: Tom Goodwin HUA FILE NO. # SP0917 Hobbs, Upchurch & Associates, P.A. DATE: July 21, 2010 RE: Pine Needles Country Club MESSAGE: Please find the following Enclosed: 1- Check $505 (#15200) Permit Application Processing Fee 1- Original and copy of the Stormwater Management Permit Application 1- Original of the Bioretention Supplement Forms and O&M agreements for each pond 1- Copy of the sealed, signed and dated calculations including Project Summary, Soil Map, and USGS Map 2- Sets of plans 1- Copy of the soil testing by Terracon Please contact our office for any questions or concerns. Thank you ®FAIR--FR® JUL 2 Z 2010 DVVQ U.YIMIT3001nansnritml dHpfapeaerille 072010.doc STORM WATER CALCULATIONS Prepared for: Pine Needles Country Club Southern Pines, NC Prepared by: HOBBS, UPCHURCH & ASSOCIATES, P.A. 300 S.W. BROAD STREET SOUTHERN PINES, NORTH CAROLINA May, 2010 SP0917 TABLE OF CONTENTS PROJECT SUMMARY CALCULATIONS BIORETENTION BASIN # 1 CALCULATIONS BIORETENTION BASIN # 2 APPENDIX • NOAA PRECIPITATION FREQUENCY AND INTENSITY ESTIAMTES • DA-1 PRE -DEVELOPED COMPUTATION/ DRAINAGE AREA MAP • DA-2 PRE -MITIGATION POST -DEVELOPED COMPUTATION/DRAINAGE AREA MAP • DA-3 POST-MITIGA'I'ION POST' -DEVELOPED COMPUTA'I'ION/DRAINAGE AREA MAP • DA-4 EXISTING ON -SITE IMPERVIOUS AREA MAP • DA-5 PROPOSED ON -SITE IMPERVIOUS AREA MAP • USGS TOPO QUAD MAP • SOIL MAP PROJECT SUMMARY Location: The project is located between Ridge Road and Midland Road in Southern Pines near Pine Needles Country Club. River Basin: The project is located in the Cape Fear River Basin Stormwater Requirements: The project is draining to and located within 1 mile of McDeed's Creek which is classified as WS 111, HOW, therefore stormwater devices will be used on the project. Stormwater Treatment: The project will use two (2)-bioretention basins for stormwater treatment. The bioretention basins have been sized for the I" rainfall depth and the 10-year, 6-hour storm with a peak outflow of 0 CFS. All bioretention basins will be landscaped. General Stormwater Notes: All stormwater devices on the project have been designed using the following data: 10-year design storm, 6 hour storm duration (See NOAA data in Appendix) Tc: 5 minutes Runoff coefficients = 0.9 for pavement, sidewalks, ect. and 0.3 for grassed areas Rainfall Intensity: 8.00 in/hr Precipitation frequency = 3.93 in. Drainage areas can be referenced on the pre and post -development drainage maps (See Appendix) No. 1 culvert SP0917 porN cover T44 PM on Dale. 7/612010 Page 1 of 1 ' Formulating Pre- & Post- Development Hydrographs utilize small watershed method & center -weighted storm (Malcom) Return Period 101year 1= 8.00 in/hr Cpre 1 0.581(composite woods/soil Rational C) Cpost 1 0.681(Composite Rational C) A= 1111 0.58 acre A= _ 25 199 sf Rainfall i _. 3.973in (6 hr Depth assoc. with 10 yr Moore. Co. storm) in Qpost= 3.16 cis POST CNi 76.76II S= 3.03II Q'= L074 in Vol -Pre cf Vol - Post 3,654 cf Tpre 19 10.19 min Tpost 14 min Time Step _1.1min Time Q- pre A. Q-post R11n cfs 0 0.00 0.00 1 0.06 0.04 2 0.25 0.16 3 0.53 0.35 4 0.90 0.60 5 1.30 0.90 6 1.71 1.24 7 2.09 1.59 8 2.39 1.94 9 2.59 2.27 10 2.68 2.57 11 2.64 2.82 12 2.48 3.00 13 2.22 3.11 14 1.95 3.15 15 1.72 3.10 16 1.51 2.98 17 1.33 2.78 18 1.17 2.54 19 1.03 2.32 20 0.91 2.11 21 0.80 1.92 22 0.70 1.75 23 0.62 1.59 24 0.55 1.45 25 0.48 1.32 26 0.42 1.20 27 0.37 1.10 28 0.33 1.00 29 0.29 0.91 30 0.25 0.83 31 0.22 0.76 32 0.20 0.69 33 0.17 0.63 34 0.15 0.57 35 0.13 0.52 36 0.12 0.47 37 0.10 0.43 38 0.09 0.39 39 0.08 0.36 40 0.07 0.33 41 0.06 0.30 C-Factor Calculation Project: Carolina Golf Association Location: Moore County Pre Developed C-factor (CF) Cover description CF Area(Sq. Foot) Impervious Area 0.9 11857 Lawns, soils,vegetatio 0.3 13354 PERCENTIMP 0.47 CF (weighted(: 0.58 TO Area: 25,199 Sq. Foot - ac or Calculation Project: Carolina Golf Association Location: Moore County Post Developed C-factor (CF) Cover description CF Area(Sq. Foot) Impervious Area 0.9 16072 Lawns, soils,vegetatio 0.3 9127 PERCENT IMP 0.64 CF (weighted): 0.68 Total Area: 25,199 Sq. Foot Carolina Golf Association Inflow 1 of 2 42 0.05 0.27 43 0.05 0.25 44 0.04 0.22 45 0.04 0.20 46 0.03 0.19 47 0.03 0.17 48 0.03 0.15 49 0.02 0.14 50 0.02 0.13 51 0.02 0.12 52 0.02 0.11 53 0.01 0.10 54 0.01 0.09 55 0.01 0.08 56 0.01 0.07 57 0.01 0.07 58 0.01 0.06 59 0.01 0.06 60 0.01 0.05 61 0.00 0.05 62 0.00 0.04 63 0.00 0.04 64 0.00 0.03 65 0.00 0.03 66 0.00 0.03 67 0.00 0.03 68 0.00 0.02 69 0.00 0.02 70 0.00 0.02 71 0.00 0.02 72 0.00 0.02 73 0.00 0.01 74 0.00 0.01 75 0.00 0.01 76 0.00 0.01 77 0.00 0.01 78 0.00 0.01 79 0.00 0.01 80 0.00 0.01 81 0.00 0.01 82 0.00 0.01 83 0.00 0.01 84 0.00 0.01 85 0.00 0.00 86 0.00 0.00 87 0.00 0.00 88 0.00 0.00 89 0.00 0.00 90 0.00 0.00 91 0.00 0.00 92 0.00 0.00 93 0.00 0.00 94 0.00 0.00 95 0.00 0.00 96 0.00 a00 97 0.00 0.00 98 0.00 0.00 99 0.00 0.00 100 0.00 0.00 Carolina Golf Association Inflow 2 of Hydrograph Routing through Bioretention Basin #1 Watershed Area 0. - ac Retention Basin Outlet Control Average Area , 0s07 ac Type Structure: Concrete Weir Average Area I. 3,0351sf Cw: 3.0 Average Depth in Average Depth ft Dry Storage Volume cf Agal Dry Storage Volume Candor Sand CaC Effective length 201ft Min. Infiltration Rate 600iin/hr Height Above Soil I 12Iin Height 1.00 ft Volume lost tolnflcf/hr Time Inflow Volume in min cis cf 0 0.00 0.00 Storage II Stage of ft O'uflow ( Infilt ��Vol Ou Nofe's9' cfs V �' of jlr$ „ef r7, 0.00 0.00 0.00 0 0.00 1 0.04 2.39 2 0.00 0.00 2.39 2.39 2 0.16 9.45 9 0.00 0.00 9.45 9.45 3 0.35 20.82 21 0.01 0.00 20.82 20.82 4 0.60 35.92 36 0.01 0.00 25.29 25.29 5 0.90 53.99 65 0.021 0.00 25.29 25.29 6 1.24 74.11 113 0.04 0.00 25.29 25.29 7 1.59 95.25 183 0.06 0.00 25.29 25.29 8 1.941 116.36 274 0.09 0.00 25.291 25.29 9 2.27 136.35 386 0.13 0.00 25.29 25.29 10 2.57 154.21 514 0.17 0.00 25.29 25.29 11 2.82 169.04 658 0.22 0.00 25.29 25.29 12 3.00 180.09 813 0.27 0.00 25.29 25.29 13 3.11 186.79 974 0.321 0.00 25.29 25.29 14 3.15 188.81 1138 0.37 0.00 25.29 25.29 Peak Inflow_ 15 3.10 186.04 1299 0.43 0.00 25.29 25.29 16 2.981 178.62 1452 0.48 0.00 25.291 25.29 17 2.78 166.93 1594 0.53 0.00 25.29 25.29 18 2.54 152.59 1721 0.57 0.00 25.29 25.29 19 2.32 138.99 1835 0.60 0.00 25.29 25.29 20 2.11 126.60 1936 0.64 0.00 25.29 25.29 21 1.92 115.31 2026 0.671 0.00 25.29 25.29 22 1.75 105.03 2106 0.69 0.00 25.29 25.29 23 1.59 95.66 2176 0.72 0.00 25.29 25.29 24 1.451 87.14 2238 0.74 0.00 25.291 25.29 25 1.32 79.37 2292 0.76 0.00 25.29 25.29 26 1.20 72.29 2339 0.77 0.00 25.29 25.29 27 1.10 65.85 2380 0.78 0.00 25.29 25.29 28 1.00 59.98 2414 0.80 0.00 25.29 25.29 29 0.91 54.63 2444 0.811 0.00 25.29 25.29 30 0.83 49.76 2468 0.81 0.00 25.29 25.29 31 0.76 45.32 2488 0.82 0.00 25.29 25.29 32 0.69 41.28 2504 0.83 0.00 25.29 25.29 33 0.63 37.60 2516 0.83 0.00 25.29 25.29 34 0.571 34.251 2525 0.83 0.00 25.29 25.29 Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 1 of 5 35 0.52 31.19 2531 0.83 0.00 25.29 25.29 36 0.47 28.41 2534 0.84 0.00 25.29 25.29 37 0.43 25.88 2535 0.84 0.00 25.29 25.29 38 0.39 23.57 2533 0.83 0.00 25.29 25.29 39 0.36 21.47 2529 0.83 0.00 25.29 25.29 40 0.33 19.56 2524 0.83 0.00 25.29 25.29 41 0.30 17.81 2516 0.83 0.00 25.29 25.29 421 0.27 16.231 2507 0.831 0.00 25.29 25.29 43 0.25 14.78 2497 0.82 0.00 25.29 25.29 44 0.22 13.46 2485 0.82 0.00 25.29 25.29 45 0.20 12.26 2472 0.81 &00 25.29 25.29 46 0.19 11.17 2458 0.81 0.00 25.29 25.29 47 0.17 10.17 2443 0.80 0.00 25.29 25.29 48 0.15 9.27 2427 0.80 0.00 25.29 25.29 49 0.14 8.44 2410 0.79 0.00 25.29 25.29 50 0.13 7.69 2392 0.791 0.00 25.29 25.29 51 0.12 7.00 2374 0.78 0.00 25.29 25.29 52 0.11 6.38 2355 0.78 0.00 25.29 25.29 53 0.10 5.81 2335 0.77 0.00 25.29 25.29 54 0.09 5.29 2315 0.76 0.00 25.29 25.29 55 0.08 4.82 2295 0.76 0.00 25.29 25.29 56 0.07 4.39 2274 0.75 0.001 25.29 25.29 57 0.07 4.00 2253 0.74 0.00 25.29 25.29 58 0.06 3.64 2231 0.74 0.00 25.29 25.29 59 0.06 3.32 2209 0.73 0.00 25.29 25.29 60 0.05 3.02 2187 0.72 0.00 25.29 25.29 61 0.05 2.75 2164 0.71 0.00 25.29 25.29 62 0.04 2.51 2141 0.71 0.00 25.29 25.29 63 0.041 2.28 2118 0.70 0.00 25.291 25.29 64 0.03 2.08 2095 0.691 0.00 25.29 25.29 65 0.03 1.89 2072 0.68 0.00 25.29 25.29 66 0.03 1.73 2048 0.67 0.00 25.29 25.29 67 0.03 1.57 2025 0.67 0.00 25.29 25.29 68 0.02 1.43 2001 0.66 0.00 25.29 25.29 69 0.02 1.30 1977 0.65 0.00 25.29 25.29 70 0.02 1.19 1953 0.64 0.00 25.29 25.29 71 0.021 1.08 1928 0.64 0.00 25.291 25.29 72 0.02 0.99 1904 0.631 0.00 25.29 25.29 73 0.01 0.90 1880 0.621 0.00 25.29 25.29 74 0.01 0.82 1855 0.61 0.00 25.29 25.29 75 0.01 0.74 1831 0.60 0.00 25.29 25.29 76 0.01 0.68 1806 0.60 0.00 25.29 25.29 77 0.01 0.62 1781 0.59 0.00 25.29 25.29 78 0.01 0.56 1757 0.58 0.00 25.29 25.29 79 0.011 0.51 1732 0.57 0.00 25.291 25.29 80 0.01 0.47 1707 0.56 0.00 25.29 25.29 81 0.01 0.43 1682 0.551 0.00 25.29 25.29 82 0.01 0.39 1657ij 0.00 25.29 25.29 83 0.01 0.35 1632 0.00 25.29 25.29 84 0.01 0.32 1607 0.00 25.29 25.29 85 0.00 0.29 1582 0.00 25.29 25.2986 0.00 0.27 1557 0.00 25.291 25.29 Moore Humane Animal Welfare center 25-Year, 12-Hour Storm Hydrograph Routing 2 of 5 87 0.00 0.24 1532 0.50 0.00 25.29 25.29 88 0.00 0.22 1507 0.50 0.00 25.29 25.29 89 0.00 0.20 1482 0.49 0.00 25.29 25.29 90 0.00 0.18 1457 0.48 0.00 25.29 25.29 91 0.00 0.17 1432 0.47 0.00 25.29 25.29 92 0.00 0.15 1407 0.46 0.00 25.29 25.29 93 0.00 0.14 1382 0.46 0.00 25.29 25.29 941 0.00 0.131 1356 0.451 0.00 25.29 25.29 95 0.00 0.12 1331 0.44 0.00 25.29 25.29 96 0.00 0.10 1306 0.43 0.00 25.29 25.29 97 0.00 0.10 1281 0.42 0.00 25.29 25.29 98 0.00 0.09 1256 0.41 0.00 25.29 25.29 99 0.00 0.08 1231 0.41 0.00 25.29 25.29 100 0.00 0.07 1205 0.40 0.00 25.29 25.29 101 0.001 0.07 1180 0.39 0.00 25.29 25.29 102 0.001 0.06 1155 0.381 0.00 25,29 25.29 103 0.00 0.05 1130 0.37 0.00 25.29 25.29 104 0.00 0.05 1104 0.36 0.00 25.29 25.29 105 0.00 0.05 1079 0.36 0.00 25.29 25.29 106 0.00 0.04 1054 0.35 0.00 25.29 25.29 107 0.00 0.04 1029 0.34 0.00 25.29 25.29 108 0.00 0.03 1003 0.33 0.00 25.29 25.29 109 0.00 0.03 978 0.32 0.00 25.29 25.29 1101 0.00 0.03 953 0.311 0.00 25.29 25.29 111 0.00 0.03 928 0.31 0.00 25.29 25.29 112 0.00 0.02 902 0.30 0.00 25.29 25.29 113 0.00 0.02 877 0.29 0.00 25.29 25.29 114 0.00 0.02 852 0.28 0.00 25.29 25.29 115 0.00 0.02 826 0.27 0.00 25.29 25.29 116 0.00 0.02 801 0.26 0.00 25.29 25.29 117 0.00 0.01 776 0.26 0.00 25.291 25.29 118 0.00 0.01 751 0.251 0.00 25.291 25.29 119 0.00 0.01 725 0.24 0.00 25.29 25.29 120 0.00 0.01 700 0.23 0.00 25.29 25.29 121 0.00 0.01 675 0.22 0.00 25.29 25.29 122 0.00 0.01 650 0.21 0.00 25.29 25.29 123 0.00 0.01 624 0.21 0.00 25.29 25.29 124 0.00 0.01 599 0.20 0.00 25.29 25.29 125 0.00 0.01 574 0.19 0.00 25.29 25.29 126 0.00 0.01 548 0.181 0.00 25.291 25.29 127 0.00 0.01 523 0.17 0.00 25.29 25.29 128 0.00 0.01 498 0.16 0.00 25.29 25.29 129 0.00 0.00 473 0.16 0.00 25.29 25.29 130 0.00 0.00 447 0.15 0.00 25.29 25.29 131 0.001 0.00 422 0.14 0.00 25.29 25.29 132 0.00 0.00 397 0.13 0.00 25.29 25.29 133 0.00 0.00 371 0.12 0.00 25.29 25.29 134 0.00 0.00 346 0.111 0.001 25.29 25.29 135 0.00 0.00 321 0.11 0.00 25.29 25.29 136 0.00 0.00 295 0.10 0.00 25.29 25.29 137 0.00 0.00 270 0.09 0.00 25.29 25.29 138 0.00 0.00 245 0.08 0.00 25.29 25.29 Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 3 of 111 111� 11• 111�� 1 11 1 1 1� 1 1• 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 • 1 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 ®" 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 ®" 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 Totals Dry Storage • 1 Drainage Depth of Ponding: in DrainageLimiting - • 11 Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 4 of 5 cf OUT Time to Drain: 2.00 hours 1 120.00 Minutes Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 5 of x LL 2.00 1.50 0.50 0.00 0 Bioretention Basin No. 1 Flow Mitigation - 10-Year, 6-Hour Storm Event 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 Time (minutes) Inflow (Post Dev. Q) Retention Outflow Inflow (Pre Dev. Q) Stage Pre/ Post Graph No. 2 culvert SP091 ] matl cover 3'44 PM an Dale: 7/612010 Page 7 of 1 Formulating Pre- & Post- Development Hydrographs utilize small watershed method & center -weighted storm (Malcom) Return Period [ 10)year 1= 1111M in/hr Cpre 0.861(composite woods/soil Rational C) Cpost 0.691(Composite Rational C) A= Nomacre A= 9 771 s( Rainfall _ 3.93 in (6 hr Depth assoc. with 10 yr Moore. Co. storm) Qpre= 1.54 cfs Qpost= 1.24 cfs Vol - Pre 3,009 cf Vol - Post cf Tpre 1014 min Tpost min Time Step � __.min Time Q-pre Q-post min cfs cfs 0 0.00 0.00 1 0.01 0.02 2 0.03 0.06 3 0.06 0.13 4 0.11 0.23 5 0.17 0.35 6 0.24 0.48 7 0.32 0.61 8 0.40 0.75 9 0.50 0.88 10 0.60 1.00 11 0.70 1.10 12 0.80 1.17 13 0.91 1.22 14 1.01 1.24 15 1.10 1.22 16 1.19 1.18 17 1.28 1.11 18 1.35 1.02 19 1.41 0.93 20 1.47 0.85 21 1.50 0.77 22 1.53 0.70 23 1.54 0.64 24 1.54 0.58 25 1.52 0.53 26 1.50 0.49 27 1.45 0.44 28 1.40 0.40 29 1.33 0.37 30 1.26 0.34 31 1.19 0.31 32 1.13 0.28 33 1.07 0.25 34 1.01 0.23 35 0.96 0.21 36 0.90 0.19 37 0.86 0.18 38 0.81 0.16 39 0.77 0.15 40 0.72 0.13 41 0.69 0.12 PRE CN ` -- - 98II S= 0.20) Q`= 3.70 in POST CN 77.35 So 2.93 Q'= 11 & 8J in C-Factor Calculation Project: Carolina Golf Association Location: Moore County Pre Developed C-factor (CF) Cover description CF Area(Sq. Foot) Impervious Area 0.9 9122 Lawns, soils,vegetatio 0.3 766 PERCENTIMP 0.93 CF (weighted): 0.86 Total Area: 9771 Sq. Foot - ac or Calculation Project: Carolina Golf Association Location: Moore County Post Developed C-factor (CF) Cover description CF Area(Sq. Foot) Impervious Area 0.9 6344 Lawns, soils,vegetatio 0.3 3427 PERCENT IMP 0.65 CF (weighted): 0.69 Total Area: 9771 Sq. Foot Carolina Golf Association Inflow 1 of 42 0.65 0.11 43 0.61 0.10 44 0.58 0.09 45 0.55 0.08 46 0.52 0.08 47 0.49 0.07 48 0.46 0.06 49 0.44 0.06 50 0.42 0.05 51 0.39 0.05 52 0.37 0.04 53 0.35 0.04 54 0.33 0.04 55 0.31 0.03 56 0.30 0.03 57 0.28 0.03 58 0.27 0.03 59 0.25 0.02 60 0.24 0.02 61 0.23 0.02 62 0.21 0.02 63 0.20 0.02 64 0.19 0.01 65 0.18 0.01 66 0.17 0.01 67 0.16 0.01 68 0.15 0.01 69 0.14 0.01 70 0.14 0.01 71 0.13 0.01 72 0.12 0.01 73 0.12 0.01 74 0.11 0.01 75 0.10 0.01 76 0.10 0.00 77 0.09 0.00 78 0.09 0.00 79 0.08 0.00 80 0.08 6.00 81 0.07 0.00 82 0.07 0.00 83 0.07 0.00 84 0.06 0.00 85 0.06 0.00 86 0.06 0.00 87 0.05 0.00 88 0.05 0.00 89 0.05 0.00 90 0.04 0.00 91 0.04 0.00 92 0.04 0.00 93 0.04 0.00 94 0.04 0.00 95 0.03 0.00 96 0.03 0.00 97 0.03 0.00 98 0.03 0.00 99 0.03 0.00 100 0.03 0.00 Carolina Golf Association Inflow 2 of Hydrograph Routing through Infiltration Basin #2 Watershed Area Pmmac Retention Basin Outlet Control Average Area Os02 ac Type Structure: PVC Riser Average Area 1,0721sf Cw: Average Depth ,ry.72 in _3.0i Average Depth 1`00 ft Dry Storage Volume ;,fit 1 072• cf Dry Storage Volume 8;099. gal Candor Sand CaC Effective length f 3.14 ft Min. Infiltration Rate L 66 000 iNhr Height Above Soil I 11in Height 100 ft Volume lost to Infl "` 0"536, cf/hr Time InflowVolum"e'"in y„ JPIy F Inln C%S st Cf • 0 0.00 0.00 " Storag"e"Stage "'� „C }„ fi,'jy Ouflow +Irifilt� Vol"Out Notes r- Cf. yCf Y 0.00 0.00 0.00 0 0.00 1 0.02 0.92 1 0.00 0.00 0.92 0.92 2 0.06 3.65 4 0.00 0.00 3.65 3.65 3 0.13 8.04 8 0.01 0.00 8.04 8.04 4 0.23 13.87 14 0.01 0.00 8.93 8.93 5 0.35 20.87 26 0.021 0.00 8.93 8.93 6 0.48 28.67 46 0.04 0.00 8.93 8.93 7 0.61 36.90 74 0.07 0.00 8.93 8.93 8 0.751 45.13 110 0.10 0.00 8.931 8.93 9 0.88 52.97 154 0.14 0.00 8.93 8.93 10 1.00 60.03 205 0.19 0.00 8.93 8.93 11 1.10 65.94 262 0.24 0.00 8.93 8.93 12 1.17 70.42 323 0.30 0.00 8.93 8.93 13 1.22 73.25 388 0.36 0.00 8.93 8.93 14 1.24 74.28 453 0.42 0.00 8.93 8.93 Inflow 15 1.22 73.47 518 0.48 0.00 8.93 8.93 _Peak 16 1.181 70.85 579 0.54 0.00 8.931 8.93 17 1.11 66.56 637 0.59 0.00 8.93 8.93 18 1.02 61.04 689 0.64 0.00 8.93 - 3 19 0.93 55.65 736 0.69 0.00 8.93 8.93 20 0.85 50.73 778 0.73 0.00 8.93 8.93 21 0.77 46.25 815 0.76 0.00 8.93 8.93 22 0.70 42.17 848 0.791 0.00 8.93 8.93 23 0.64 38.44 878 0.82 0.00 8.93 8.93 24 0.581 35.05 904 0.84 0.00 8.931 8.93 25 0.53 31.95 927 0.86 0.00 8.93 8.93 26 0.49 29.13 947 0.88 0.00 8.93 8.93 27 0.44 26.56 965 0.90 0.00 8.93 8.93 28 0.40 24.21 980 0.91 0.00 8.93 8.93 29 0.37 22.07 993 0.93 0.00 8.93 8.93 30 0.34 20.12 1004 0.941 0.00 8.93 8.93 31 0.31 18.35 1014 0.95 0.00 8.93 8.93 32 0.28 16.73 1022 0.95 0.00 8.93 8.93 33 0.25 15.25 1028 0.96 0.00 8.93 8.93 34 0.23 13.90 1033 0.96 0.00 8.93 8.93 Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 1 of 6 Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 2 of Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 3 of 111 111 ®'� 111�� 111 111�� 111�� 111 111�� 111�� 111 111® 1 1 111�� 111 111 ®' 1 • 111�� ® 1 11 1 11� 1 1• 1 11�� ®' 111 111� 11• 111�� 1 1/ // 1� 1 1• 1 1 1 ®' 111 111� 11� 111�� ®' 111 111 �' 11 111 ®' I' • 1: ®" 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 ®" 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 / 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 ®' 1 11 1 11 � 1 11 1 11 1 11 1 11 ® 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 111 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 ®" 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 1 11 1 11 � 1 11 1 11 1 11 1 11 • 1 1 11 1 11 � 1 11 1 11 1 11 1 11 Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 4 of 6 Totals 1,457 cf IN Dry Storage Volume 1,072 cf Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 5 of 0,879 cf OUT Retention Drainage Time: Depth of Ponding: 12 in Limiting Drainage Rate: 6.00 in / hr Time to Drain: 2.00 hours 1 120.00 Minutes Moore Humane Animal Welfare Center 25-Year, 12-Hour Storm Hydrograph Routing 6 of F LL 2.00 1.50 0.50 Bioretention Basin No. 2 Flow Mitigation - 10-Year, 6-Hour Storm Event II III _ I II I' �I - i I�IIiiII�,; 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 Time (minutes) Inflow (Post Dev. Q) Retention Outflow Inflow (Pre Dev. Q) --Stage Pre/ Post Graph Riser Calculations for Pine Needles Country Club Southern Pines, North Carolina Riser Design for Bioretention Basin No. 2 Drain Area 0.22 Ac. Intensity= 9 Cc= 0.69 Peak Flow 010 1= 6.00 inch. C = 0.69 A = 0.22 Ac. 010 = CIA 010= 1.2 CFS Principal Spillway Riser Elevation = 451.8 Riser loves Elevation = 447.53 Barrel Invert Out = 44693 Barrel Length = 120 ft. Bartel Size = 12 'PVC Kp = 0.0267 Barrel Area = 0.79 at 0 barrel = 4.99 CFS Riser Width of Weir 3.14 h 0 riser = 1.2 CFS H = 0.25 ft H is Weir depth above user. Capable of Carrying Basin 2'm SPOr11 ewer Desgn I of I 7I0o2nta Precipitation Frequency Data Server Page I of 3 POINT PRECIPITATION 4& FREQUENCY ESTIMATES ®�, FROM NOAA ATLAS 14 `� 0 SOUTHERN PINES 2 W, NORTH CAROLINA (31-8089) 35.1667 N 79.4333 R' 400 feet from "Recipilation-Fr yucney Atlas sf the (failed States" NOAA ATW 14. VNume 2, Version 3 (I. M. Nonnin. D. Martin, a. Un, T. ParghA, %.Phis, and D. Ri Icy %QAA. National Weathc Smice. Silver Spring, Maryland, 2004 ARI" (years) c min III nnn IS mat RO mat 611 nnn I20 mat T hr 6 hr 12hr 4 hr 48 hr 4 d1 7 day IU _, 'o 1, 3o (LJIFj 45 d.1 611 t MJ FI 0.44 0.70 0.38 1.21 LSU 1.76 1.87 2.23 2.63 A09 3.M1 4.Ik1 4.66 5.32 7.17 8JN) 11.27 13.52 �(1.52 0.83 1.05 IAS LRI 2.14 226 2.69 7.19 3.73 4.37 4.85 5.56 6.34 R.47 111.43 13:?2 15.80 �0.60 0.97 I J 1.74 2.23 2.67 2.R4 3.38 4.02 4.69 5.41 5.99 6.79 7.63 If1.02 12.20 I5.17 17.R9 IU 0.67 LU7 1.35 1.96 2.55 3.07 7.29 3.93 469 $.45 6.27 6.`1n 7.76 8.65 11?4 13.54 16.fi1 I9.51 25 0.74 LIR 1.49 221 2.94 3.hU 3.9f1 4i67I 5.62 6.44 7.47 R.14 9.11 IO.UI 12.R9 I5.70 18.52 2L59 50 0.79 L26 1.59 2.40 3.25 4.(N) 4.78 5.27 6.3R 7.32 6.35 9.17 10.18 11.09 417 16.65 19.97 23.16 1110 0.84 LJl LhN 2.57 J.54 4dl 4.88 5.89 7.18 8.17 9.30 10.15 IL27 12.17 ISA7 1799 T 24b7 200 0.88 L39 1.76 2.74 3.84 4.82 5.39 6.54 8.02 9.IW 10.27 1120 12 40 13.?8 16.7R 19.33 22.79 26.15 5110 U.97 L47 L85 2.94 4.22 5.3fi 6.111 7.43 9,22 I(134 I L60 12.63 13.95 14.78 18.57 21.12 24.61 28.(17 I000 0.97 1.52 1.91 3.10 4.52 5.79 6.67 R.16 IU.19 11.19 12.66 13.7h 15.16 IS 95 1996 22.51 26.1ID 29.51 ' TMm precipitation hequency estaretes we Eased on a omal duration setks. ARI is he Average Recurrence Interval. Please refer to NOAA Aeas 14 Opctons b mprB inlwmaEM. NOTE: Forma N krces estmads mm zero b appear n zero. * Upper bound of the 90% confidence interval Precipitation Frequency Estimates (inches) ARI*" 5 IU 15 30 60 120 3 6 12 24 49 4 7 10 20 30 45 60 (years) min min "Ni. in min min hr hr hr hr hr day day'I day 11 day 11 Jay I I day =I OA9 0.78 (L97 1.73 1.6h 1.97 2.OR 2.47 2.92 3J5 3.SR 4.32 4.9R 5.67 Z59 9A1 11.91 14. 33 0.56 0.92 1.16 1.60 2.01 2.7R 2.52 2A8 7.53 4.U5 4.68 5.19 5 95 6.74 8.96 11 08 13.96 16.62 �0.67 1.117 1.35 1.93 2.47 297 3.16 3.74 4.45 S.U9 5.85 6.40 7.27 8.11 I(1.60 12.R9 IA96 I8.R1 10 0.74 1.18 L49 2.16 2.81 3A2 3.65 4.13 5.18 5.91 6.77 7.37 R.31 9.19 IF] N9 14.30 17.51 20.51 25 0.81 1.30 L64 2.44 3.24 4.IID 433 5.15 6.19 7.03 8.02 8.70 9.74 10.64 13.63 16.16 19.51 22b9 50 0.87 L38 1.75 2.b3 3.57 4.45 4.86 5.80 7.02 7.92 9.01 9.76 IO.R9 IL79 15.o0 17.60 2L(16 44.34 100 0.92 1.46 LNS 2.83 3.(N) 4A0 5.4U 6.47 7.8R 8.N4 10.03 IONS 12.07 12.96 16.J8 19"U3 22.56 2A96 2UU 0.97 1.53 1.93 3.111 4.22 5.35 5.97 7.18 8.80 9.78 11.09 I L99 13.28 14.14 17.80 2U.47 24.(IS 2Z54 c00 102 1.62 2.(14 A24 4.65 5.95 6.76 8.15 II),I I 11.09 12.54 13.54 14 95 15.76 19.73 22.41 26.00 29.63 I IIUII 1.06 1.68 2.11 7.41 4.98 6.43 7.40 R.95 11.16 12.12 13.72 14.1fi 16.2R IZ(ll 21?2 23.93 27.50 311U ' The now bound of the confidence iMerva' at 90% confidence level is the value which 5%of Me su rite nuwrok values for a given hesitancy we waster Man. Thew preWdation frequency estimates we haled on a owtial duration series. AM is May Average Recustence Interval. Please now to NOAA Atlas 14 Document Ion more infwmawn. NOTE: Farmalerg vewnn eawnaln new zero b wow as zero. * Lower bound of the 90% confidence interval Precipitation Frequency Estimates (inches) ARI*• 5 10 I$ 10 611 12U J 6 12 �4 4N 4 7 IU �0 3U 4S 60 (years) ismin in min min min hr It hr hr hr day day day day day Jny day �0.40 0.64 U.8f1 L10 1.37 1.60 1.69 2A7 2.39 2.Nfi 3.74 7.77 4.75 5.112 (78 8A2 II 12.85 �OA7 0.76 095 1.72 1.65 IY4 2.U5 2.45 2JNI 3.45 4.03 4.53 5.20 5.97 El 9.92 12.52 ISAII � 0.55 11.88 1.11 1.58 2.0J 2A1 2.57 3.08 3.64 4.34 A03 5.59 7.18 9.46 11.54 W 33 16.97 10 Ob0 0.97 1.22 1.77 2.31 2.77 2.97 3.55 4.23 5.03 5.81 6.47 7.27 R.12 Ill.(r0 12.79 15.71 ISA9 25 11.67 L06 1.35 L99 2.65 3.L 3.50 4.20 5.U4 5.97 6.86 7.57 R.46 9.78 12.12 1444 17.49 20.44 U.71 A3 ?23 9 4.70 o36335.68 R4 29SU 100 fl75 1.19 L50 2.J0 3.17 3.91 4.32 5.'_2 6.33 747 8.54 9.3h IUA2 11.35 14.47 16.92 20.13 23.28 2110 0.78 1.24 1.56 2.44 3.42 4.0 4.74 5.73 7.(Nl 825 9.40 I11.30 11.43 12.74 - 1R,66 1 E 21A(1 24.h3 500 0.82 E]Efl 2.60 3.73 4.68 5.30 6.43 Z91 9.32 10.58 1157 12.79 13. 99 17.25 19 75 E64 26.38 I UIIO 0.85 L77 L67 2.7I y96 5.00 5.73 6.9R 8.62 10.15 IL50 1256 1J.R7 14.72 IRA7 20.9fi 24.27 27.68 The Iowa WIN of the confidence interval as 90%confidence level is Me value *Nch 5%of the emulated quwtle values for a on"hesuency me Ins than. "These forwpitaEon frequency estimates we based on a paNal Oyrabpn minima sene5. AM is Me Average ReceROMe Heival, http://hdsc.nws.noaa.gov/cgi-binlhdsc/buildout.perl?type=pf&units=us&series=pd&statena... 4/ 15/2010 W V W IJ N tJ N pp�� A NE OANPRE O9� O R "T o t9 m ON ll L C O m m� 7 'JO w 6 INi 2 P P P s L �� ti O O7F m Ce U 1.Ji a� App J P O q 9 "+ C IMPN W 'S - J L A l tJ f C A A u P L in - J A � R MOJ N6 A ; f9 L 2 RE[-- P O O A pp A 4 6 J v i JC P N? K K RPW N E WNHHHHHHU m m N m k �L O J .C. .O .O — i N N N N N OC P P 4� A W W IJ IJ a��• I