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HomeMy WebLinkAbout20130473 Ver 1_401 Application_2013051320130473 JAMESTOWN ENGINEERING GROUP, INC. CIVIL ENGINEERS & SURVEYORS LAND PLANNING • MUNICIPAL CONSULTING Er in& 117 East Main Street • P.O. Box 365 • Jamestown, N.C. 27282 Telephone (336) 886.5523 Fax (336) 886-5478 www,jamestownengineering com Ranet May 2, 2013 Re: Novamelt Randolph County, NC 404/401 PCN Novamelt Americas, LLC JEG Job No. 2012 -054 Raleigh Regulatory Field Office u L9 US Army Corps of Engineers - -- - - -- of Attn: John Thomas 1AAY 3 2013 6508 Falls of the Neuse Road Suite 120 W NRe at WATEi? e Raleigh, NC 27615 Dear Mr. Thomas: With regard to the referenced site, and on behalf of Novamelt Americas, LLC, we have enclosed one original and one copy of the Pre - Construction Notification Application for Nationwide Permit 39 for your review and approval. The site is to be developed for industrial use. We have attached copies of the USGS Topography Map and Randolph County Soils Map for this area, an overall impact map, a vicinity map, half -scale plan of the impact areas, and enlarged specific impact maps. We have minimized impacts to the maximum extent practical while still allowing for fire access to the buildings as desired by the City of Trinity for public safety and service. If there are any questions or additional information required, please call. Yours very truly, JAMESTOWN ENGINEERING GROUP, INC. Thomas R. (Rich) Glover, Jr., PE CCP /cp Enclosures N.C. Department of Environment and Natural Resources Agent Authorization Form Date 415 -2013 Name of Property Owner Applying for Permit: DFKK. LLC Mailing Address: 5608 Uwharrie Road Archdale, NC 27263 I certify that I have authorized (agent) Jamestown Engineering Group. Inc to act on my behalf, for the purpose of applying for and obtaining all 401/404 Permits necessary to install or construct (activity) Construction of an Office/Lab, Warehouse and Parking , at (my property located at) 5638 Uwharrie Road, Archdale. NC 27263. This certification is valid thru (date) October 1. 2013 Property Owner Signature Date yao� wAT�9P� 1t ti O Y Office Use Only: Corps action ID no. DWQ project no. Form Version 1.4 January 2009 Pre - Construction Notification (PCN) Form A. Applicant Information 1. Processing 1a. Type(s) of approval sought from the Corps: .Section 404 Permit ❑ Section 10 Permit 1b. Specify Nationwide Permit (NWP) number. *3 19 or General Permit (GP) number. 1c. Has the NWP or GP number been verified by the Corps? 'Yes ❑ No 1d. Type(s) of approval sought from the DWQ (check all that apply): §T401 Water Quality Certification - Regular ❑ Non -404 Jurisdictional General Permit ❑ 401 Water Quality Certification - Express ❑ Riparian Buffer Authorization 1e. Is this notification solely for the record because written approval is not required? )\) p For the record only for DWQ 401 Certification: ❑ Yes ;ffNo For the record only for Corps Permit: ❑ Yes ErNo 1f. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in -lieu fee program. ❑ Yes Iff No 1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1h below. ❑ Yes IffNo 1h. is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes Ef No 2. Project Information 2a. Name of project: N oQA M�E L-r- 2b. County 2A-.Xae7L��/ 2c. Nearest municipality/ town: 2d. Subdivision name: 2e. NCDOT only, T.I.P. or state project no: 3. Owner Information 3a. Name(s) on Recorded Deed: V- 1[ U- C 3b. Deed Book and Page No. P G 1193 3c. Responsible Party (for LLC if applicable): p iV lltr 'J LA M 116*e&, 3d. Street address: 15&00' 0,Ait jAe2 f 6 A-z 3e. City, state, zip: Aeaz4 .a4C e NC- Z72(,, 3f. Telephone no.: 0 33 6- 4-3 4 -9060 3g. Fax no 3 3W - 434 - 9019 3h. Email address: Page 1 of 10 PCN Form - Version 1.4 January 2009 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent Other, specify: Co TQ A Cr d CF(ASo Q 4b. Name: Ti M Au a'2 4c. Business name (if applicable): WOJAM&,-r- AME2+c/ e. LCD 4d. Street address: !LOS Vw4A2Rro 4e. City, state, zip: Q4,4o4c_.a RJL Z7Z&3 4. Telephone no.: 3 3G - 4 3 4 -954-1 4g. Fax no.: 4h. Email address: J A d B a ee- /JdJAMai.T. Conk S Agent/Consultant information (if applicable) 5a. Name: ierj (.OJB2 5b. Business name (if applicable): ��!! TaMzs��.� �a►Lr��oc41�G1 C.7acJ P �.JC . 5c. Street address: (i-7 E. 4, -3 ST'• 5d. City, state, zip: TAm- ,s-Tb,.j^i , is C Z 72 o° Z 5e. Telephone no.: 3 3& - 886 - SS Z3 5f. Fax no.: 3 3& - 86(,,- 5479 5g. Email address: r (oote CO Page 2 of 10 B. Project Infonnadon and Prior Project History 1. Property Identification 1a. Property identification no. (tax PiN or parcel ID): 77 08 15 3 7 j 1b. Site coordinates (in decimal degrees): I Latitude: 3S . 9 0 39 Longitude: - SO.0104- 1e. Property size: S, $ acres 2 Surface Waters 2a. Name of nearest body of water to proposed project: uwal A e Q 16 Zam 2b. Water Quality Classification of nearest receiving water. Gw A 2c. River basin: W41A221>✓ 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at ft tirne of this application: 5.E Zs W � P Qq.Gi+G Pr-om 3 -S % 4,j,-% 7`Nc Qe42 10-20010 . S. ice' Ws w11Tu" A.a -r i o✓yT2* A c.. A-4 k 3b. List the total estimated acreage of all existing wetlands on the property: Q, OS 4c- 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the properly: 3d. Explain the purpose of the proposed project: EX P"c,, of of Apo Mc osr#,J 4 AAiau FAcTvA1Ny �Re.�cTY Wra,eti Wu.c. AoQ OAF(e.s /,LAS ANO W4kWoosa sp4cz, 3e. Describe the overall project in detail, Including the type of equipme{pt to be used: CtrA28� r ��lRuB3�• -+�,r l+ao riw �i�lAKr 6£ f'LA4! S Uri"'a ""4 P*.S, &J%c44eES LoAze 2 S , 4^30 -MvC K.s 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) In the past? ❑ Yes ❑ No 10 Unknown Comments: 4b. If the Corps made the Jurisdictional determination. what type of determination was made? [J Preliminary Final 4c. If yes, who delineated the jurisdictional areas? Name (if known): Toy,j THoMAs Agency /Consultant Company: I Other. Co2P 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. 5. Project History 5a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past? ❑Yes RNo ❑ Unknown 5b. If yes, explain in detail according to 'help file* instructions. 6. Future Project Plans 6a. Is this a phased project? ❑ No 6b. If yes, explain. OFJ'C-E 1LA f3 W,dc. (38 got,- ' h'r ErJo OF ?-013 . WAQ6e4odw0-5 Ba "IX-no Ova-0-714u IVIrP-r- 5-10 Y-g2s. Act.,.vy A;No M% PA crs W,,- , I qq icy Pcgc-B W • TU O-cFico' / 446 i2A.6T7D v eTia.J Page 3 of 10 PCN Forth — Version 1.4 January 2009 C. Proposed Impacts Inventory 1. Impacts Summary 1a. Which sections were completed below for your project (check all that apply): Wetlands ❑ Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2 Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 28. Wetland Impact number Permanent (P) or Tem ora 2b. Type of impact 2c. Type of wetland 2d. Forested 2e. Type of jurkdfdion Corps (404.10) or DWO (401, other) 21. Area of impact (acres) W1 - P sheeeOel, F,c-(— Ghe so Noke-owwb Fv--f- MW /a P W2 Choose one Choose one YesMo W3 - Choose one Choose one Yeeft W4 - Choose one Choose one YOSIM W5 - Choose one Choose one Yeaft W6 - Choose one Choose one Yeaft 29. Total Wetland Impacts: 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream Impacts (Including temporary Impacts) proposed on the site. then complete this question for all stream sites Impacted. 3a. Stream impact number Permanent (P) or Temporary (T) 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)9 3e. Type of jurisdiction 3f. Average stream width feet 3g. Impact length (near feet) S1 - Choose one - S2 - Choose one S3 - Choose one S4 - Choose one S5 - Choose one S6 - Choose one 3h. Total stream and tributary Impacts 31. Comments: Page 4 of 10 PCN Form — Version 1.4 January 2009 4. Open Water Impacts 9 there are proposed impacts to lakes, ponds, estuaries, Mbutaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individually list all open water Impacts below. 4a. Open water Impact number Permanent (P) or Temporary 4b. Name of waterbody ' (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of Impact (acres) 01 - Choose one Choose 02 - Choose one Choose 03 - Choose one Choose 04 - Choose one lChoose 4f. Total open water Impacts 4g. Comments: L Pond or Lake Construction If Pond or lake construction protposed. the complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland acres Flooded Filled Excavated Flooded Filled Excavated P1 Choose one P2 Choose one 5f. Total: 5g. Comments: 5h. Is a dam high hazard permit required? ❑ Yes ❑ No if yes. permit ID no: Si. Expected pond surface area (acres): Q. Size of pond watershed (acres): 5k. Method of construction: 6. Buffer Impacts (for OWQ) ff project will impact a protected riparian buffer, then complete the chart below. If yes, then Individually 99 all buffer Impacts below. If any Impacts require miticiatlon. then you MUST fill out Section D of this form. 6a. Project is in which protected basin? ❑ Neuse ❑ Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other. 6b. Buffer Impact number— Permanent (P) or Temporary 6c. Reason for impact 6d. Stream name 6e. Buffer mitigation required? 6f. Zone 1 Impact (square feet ) 69. Zone 2 Impact (square feet B1 - YesMo B2 - Y98ND B3 - Yeaft B4 - Yeaft 65 - Yeeft 86 - Yn to 6h. Total Buffer Impacts: 61. Comments: Page 5 of 10 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project A� Tote O�va.Y v k'Tr-hao ZAP�4cTs AA A� SM 4Le. A -micaT GRo�� ejy AP*A. o.a 4*71% �- -r PmoA6QTY- CeL;;-oPMO-iT 1iks -a-i T'..+AAt� 0PP&/L QSIAW62, 0 4S -5. q MoQa S «.w•�.cR�rr- FahTV2i3 1b. Specifically describe measures taken to avoid or minimize the proposed Impacts through construction techniques. BMP A, o7i[b2 c2osro -+ fa oT- aL_ tmz Isvfx=n. 4az /j�•."a, Ur+c.,'m-q To PRo?tZT QO..�as-r2� �74T'u2� 2. Compensatog Mitigation for Impacts to Waters of the U.S. or Waters of the State 2s. Does the project require Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State? ❑ Yes Ef No 2b. if yes, mitigation is required by (check all that apply): ❑ DWQ ❑ Corps 2c. If yes, which mitigation option will be used for this project? ❑ Mitigation bank ❑ Payment to In -lieu fee program ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3s. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type: Choose one Type: Choose one Type: Choose one Q,e,tl1y; Quantity: Quantity: 3c. Comments: 4. Com fete N Makina a Payment to In -lleu Fee Pro ram 4a. Approval letter from in -lieu fee program is attached. ❑ Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: Choose one 4d. Buffer mitigation requested (DWQ only): square feet 4e. Wparian wetland mitigation requested: acres 4f. Non - riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: L Complete if Using a Permittee Responsible Mitigation Plan So. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. Page 6 of 10 PCN Form — Version 1.4 January 2009 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ Be. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? 1 13 Yes ,� No 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, perrnittee responsible riparian buffer restoration, payment into an approved In -lieu fee fund). 6h. Comments: Page 7 of 10 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified ❑ Yes No within one of the NC Rpadan Buffer Protection Rules? 1b. If yes, then Is a diffuse flow plan included? If no, explain why. ❑ Yes ❑ No 2. Stormwater Mana ement Plan 2a. What is the overall percent imperviousness of this project? 57— % 2b. Does this project require a Stormwater Management Plan? 19Yes ❑ No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: VJZr 8.&,s,.i W," AS Co,-,,.T- e,veh� . Qe�e..j 2arjev6 Au- ,PhaPoycc-, Aa0 E)4,5 -77--4) rAPaaJ,oJS A,2a4 0--i -Me p p pa a-r" 2e. Who will be responsible for the review of the Stommater Management Plan? DW Q 3. Certified Local Government Stormwater Review 3a. In which local ovemment's lurisdiction is this ro ect? tag^+ r TY ZPhase II 3b. Which of the following Iocally4mpiemented stormwater management programs ❑ NSW apply (check all that apply): B Watery Supply Watershed ❑ Other. 3c. Has the approved Stormwater Management Plan with proof of approval been ❑Yes ❑ No 4. DWQ Stormwater Program Review 13Coastal counties ❑HOW 4a. Which of the following state - implemented stormwater management programs apply ORW (check all that apply): BSesslon Law 2006 -246 ❑Other. 4b. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ❑ Yes [] No 6b. Have all of the 401 Unit submittal requirements been met? ❑ Yes ❑ No Page 8 of 10 PCN Form — Version 1.4 January 2009 F. Supplementary Information 1. Environmental Documentation (DWO Requirement) 1a. Does the project involve an expenditure of public (federallstate/local) funds or the ❑ Yes 1JrNo use of public (federellstate) land? 1b. If you answered "yes° to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ❑Yes ❑ No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1c. If you answered 'yes* to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval ❑ Yes ❑ No letter.) Comments. 2 Violations (DWO Requirement) 2a. Is the site in violation of DWO Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300). DWO Surface Water or Wetland Standards, ❑Yes IgNo or Riparian Buffer Rules (15A NCAC 2B.0200)? 2b. Is this an after -the -fad permit application? ❑Yes X) No 2c. If you answered 'yes° to one or both of the above questions, provide an explanation of the violation(sy 3. Cumulative Impacts (DWO Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in ❑Yes VNo additional development, which could Impact nearby downstream water quality? 3b. If you answered "yes* to the above, submit a qualitative or quantitative cumulative impact analysis In accordance with the most recent DWQ policy. If you answered Ono; provide a short narrative description. 4. Sewage Disposal (DWO Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non - discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. lass Pn.07Z�- w,s_tr T.e: =..,ro T?Ae Z iW sT-- e7 etrrY of AgWAALZ 'Sg.a,r42Y 7ha CAP"#" 37-1, 1.3�nG,o A� Ty�s S,re w,�,�, Dsse.��4aye i�PP?to�c. rZoG?o Page 9 of 10 PCN Form — Version 1.4 January 2009 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. WIN this project occur in or near an area with federally protected species or E3 Yes �� habitat? 5b. Have y checked with the USFWS concerning Endangered Species Ad ❑Yes $�No 5c. If yes, Indicate the USFWS Field Office you have contacted. 5d. What data sources did you use to determine whether your site would impact Endangered Spades or Designated Critical Habitat? Gdo'UCe0 1'uz �,-S. We& S, ti✓ AyC N4 ,po 4rkcm*4 IC•,am,- e5 Mahrltn &sa as P-0' -W ' -Xi P-At— s 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur In or near an area designated as essential fish habitat? ❑ Yes $[ No 6b. What data sources did you use to determine whether your site would Impact Essential Fish Habitat? QS 17, S'4 "a wic,DL-r ICS 15�65&01L 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. WIN this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ❑ Yes EfNo status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would Impact historic or archeological resources? NATV- c- P4/2V- 5�%Wtcu WtM S,T 8. Flood Zone Designation (Corps Requirement) Be. %MR this project occur in a FEMA- designated 100 -year floodplain? ❑ Yes No 8b. If yes, explain how project meets FEMA requirements: Sc. What soumce(s) did you use to make the floodplain determination? P&AA Pq..hLc. -* %708J M4P* 3710 770800T Tip > r2. GL..., 51, s11113 ApplicentfAgent's Printed Name pli Agent's gna hirer Date (Agents signature is vaQd only if an Wharl>atlah letter from the applicant is ed. Page 10 of 10 Species Species By County Report The following report contains Species that are known to or are believed to occur in this county. Species with range unrefined past the state level are now excluded from this report. If you are looking for the Section 7 range (for Section 7 Consultations), please visit the IPaC application. County: Randolph, NC Group Name Population Status Lead Office Cape Fear shiner Fishes Notro is Entire mekistocholas) Flowering Schweinitz's Plants sunflower Raleiah Ecoloaical Services Field Office Raleigh Office Ecological Name: Services Field Office Endangered POST OFFICE BOX Address: 33726 'RALEIGH, NC27636 Phone (919)856 - Number: 4520 Endangered Asheville Ecological Services Field Office Recovery Recovery Recovery Plan Name Plan Action Plan Status Stage Cape Fear View Shiner Implementation Final Progress Schweinitz's View Final Sunflower Implementation Group Name Population Status (Helianthus schweinitzh) Export options: CSV I EXCEL I XML I PDF Lead Office Recovery Plan Name Recovery Plan Action Status Prowess ess Last updated: April 11, 2013 ECOS Home Contact Us U.S. Fish and Wildlife Service Home Page j Department of the Interior I USA.gov + About the U.S. Fish and Wildlife Service I Accessibility I Privacy I Notices I Disclaimer FOIA Recovery Plan Stage Asheville Office Ecological Name: Services Field Office 160 ZILLICOA STREET Address: ASHEVILLE, NC28801 Phone (828 )258 -3939 Number: Recovery Plan Name Recovery Plan Action Status Prowess ess Last updated: April 11, 2013 ECOS Home Contact Us U.S. Fish and Wildlife Service Home Page j Department of the Interior I USA.gov + About the U.S. Fish and Wildlife Service I Accessibility I Privacy I Notices I Disclaimer FOIA Recovery Plan Stage 35' S4' 19" Soil Map — Randolph Courv% North Carolina (US, A -SOIL SURVEY NOVAMELT) a C4 N O b § 00 W30 5mpw 589290 588320 588350 589380 589410 589440 589470 qAA A 589200 30 M60 589290 589320 58450 589380 589410 589440 589470 a MepScale 11,390 If printed anA size (8S "z11")sheet N 0 15 30 SO 90 stare A Feet 0 50 100 200 300 USDA Natural Resources Conservation Setvioe Web Soil Survey National Cooperative Soil Survey b m b 4/10/2013 Page 1 of 3 35" 54 19" 35" 54' 13" 1 7c � I qAA A 589200 30 M60 589290 589320 58450 589380 589410 589440 589470 a MepScale 11,390 If printed anA size (8S "z11")sheet N 0 15 30 SO 90 stare A Feet 0 50 100 200 300 USDA Natural Resources Conservation Setvioe Web Soil Survey National Cooperative Soil Survey b m b 4/10/2013 Page 1 of 3 35" 54 19" 35" 54' 13" Soil Map — Randolph County, North Carolina (USDA -SOIL SURVEY NOVAMELT) MAP LEGEND MAP INFORMATION Area of Interest (AOQ 4Z very Stony spot Map Scale: 1:1,390 if printed on A size (8.5" x 11") sheet. E] Area of Interest (AOQ Wet spot The soil surveys that comprise your AOI were mapped at 1:24,000. Soil Other F--j Soil Map Units Warning: Soil Map may not be valid at this scale. Special point Features special Una r- assures na F Enlargement of maps beyond the scale of mapping can cause V Blowout misunderstanding of the detail of mapping and accuracy of soil line Short Steep Slope placement. The maps do not show the small areas of contrasting ® � soils that could have been shown at a more detailed scale. Other Clay Spof t Clay s o Political Features Please rely on the bar scale on each map sheet for accurate map 4 Closed Depression ® Close measurements. X Gravel Pit Water Features Source of Map: Natural Resources Conservation Service .. Gravely Spot ,.,� Streams and Canals Web Soil Surrey URL: httpJ /websoilsurvey.nres.usda.gov Coordinate System: UTM Zone 17N NAD83 ® Landfill Transportation +�-►. Rails This product is generated from the USDA -NRCS certified data as of A. Lava Flow the version date(s) listed below. ,J& Marsh or swamp �/ Interstate Highways Soil Survey Area: Randolph County, North Carolina R Mine or Quany US Routes Survey Area Data: Version 18, Jul 12, 2012 O Miscellaneous Water ti Malor Roads Date(s) aerial images were photographed: 6/15/2006 p Perennial Water /v Local Roads The orthophoto or other base map on which the soil lines were complied and digitized probably differs from the background v Rock Outcrop imagery displayed on these maps. As a result, some minor shifting + Saline Spot of map unit boundaries may be evident. .. Sandy Spot .E-, Severely Eroded Spot p Sinkhole Slide or Slip 0 Sodic Spot a Spoil Area Q Stony Spot USDA Natural Resources Web Soil Survey 4/10 /2013 Conservation Service National Cooperative Soil Survey Page 2 of 3 Sal Map - Randolph County, North Carolina USDA-SOIL SURVEY NOVAMELT Map Unit Legend Randolph County, North Carolina (NC151) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI MkC Meddenburg -Urban land complex, 2 to 10 percent slopes 1.4 19.6% WPC Wilkes - Poindexter- Wynott complex, 8 to 15 percent slopes 2.1 30.3% WzB Wynott- Wilkes- Poindexter complex, 2 to 8 percent slopes 3.6 60.1% Totals for Area of Interest 7.1 100.0% Natural Resources Web Soil Survey 4/1012013 Conservation Service National Cooperative Soil Survey Page 3 of 3 NC ONEMAP DATA EXPLORER Find Data Add External Service Choose BaseMap Feedback Help 200 m 1000 R - 80.0234, 35.9081 V11 sl 1 \ LIMITS OF / -WS ANCE (T __l 19g r -:w \� 'NERDY DISS11aAT0 SILT FENCE W� DAMS \ TYP 1 \ a 'r/ 4 IMPACT W -1 NOVAMELT CONTRACTOR SHALL FOLLOW ALL APPROVALS AND CONSTRUCTION SEQUENCE ON APPROVED CONSTRUCTION PLANS 5638 UWHARREE RD. DURING DISTURBANCE. WETLANDS DISTURBANCE CONSTRUCTION SEQUENCE: CITY OF TRINITY RANDOLPH COUNTY - NORTH CAROLINA 1. THE CONTRACTOR SHALL INSTALL SILT FENCE WITH RIP -RAP NORTH CAROLINA STONE OUTLETS PRIOR TO INSTALLING FILL. 2. AS FILL IS BEING INSTALLED. THE BERM SHALL BE JOB NUMBER 2012 -054 INSTALLED AND MAINTAINED TO DIVERT DISTURBED AREA TO THE POND. BERM SHALL BE ADJUSTED AS FILL IS INSTALLED AND ENSURE THAT ONLY THE LOWER PART OF THE FILL SLOPE owmmb IS DIRECTED TO THE SILT FENCE W/RIP -RAP OUTLETS. C/OJIM AUM. PRESMT 3. CONTINUE WITH POND INSTALLATION. GROUND COVER 5808 UwHAMIE ROAD SHALL BE ESTABLISHED WITHIN 14 DAYS OF DISTURBANCE ON ARCHDAU� NC 27263 (3) 4M-9541 ALL SLOPES. 4. INSPECT AND MAINTAIN EROSION CONTROL DEVICES UNTIL SITE HAS BEEN STABILIZED AND REMOVAL FROM EROSION INSPECTOR HAS BEEN GRANTED. 30' 20' 10' 0 30p 60' Zan mommommic-___ SCALE: 1 " = 30' sl 1 \ LIMITS OF / -WS ANCE (T __l 19g r -:w \� 'NERDY DISS11aAT0 SILT FENCE W� DAMS \ TYP 1 \ a 'r/ 4 FLOOD CERTIFICATION The undersigned hereby certifies to the best of his knowledge and �vdd belief the location of the subject property has been checked against NOVAMELT \\ area HUD /FIA maps and information provided by the Department of �L,NS .CREPE Housing and Urban Development and finds that: 5638 UWHARRIE RD. view DR CITY OF TRINITY o r, ( The subject property is located in a SPECIAL FLOOD RANDOLPH COUNTY — NORTH CAROLINA � o � HAZARD AREA as determined by HUD /FIA flood map. NORTH CAROLINA W J c <� W The subject property is not located in a SPECIAL FLOOD � a HAZARD AREA as determined by HUD /FIA flood map 3 !� m FIRM MAP PANEL 3710770800J DATED JAN 2, 2008. JOB NUMBER 2012 -054 The subject property is located in on area which has OWNER: A not been mapped as to flood areas by HUD /FIA. NOVAMELT 60' 30' 0 60' 120' 180' C/O JIM AUBER, PRESIDENT NENDENHA L RD >a � 5608 UWHARRIE ROAD �3 ARCHDALE, NC 27263 ""CrVDENNAL �� SCALE: 1 al = 60' (336) 434 -9541 �---ZZe_ PG 71 / SS 12N.' � µ�w '*,> J � / S I to T 581 9d' RIM- 11. � L VICINITY MAP I' s / f NVER 6 NOT TO SCALE I / 8 _ 15 �- o DISCI �9 IN J;2FES I �[ / m r 3r "24 23. O I _ / / / \ •.lr.. ,, •.• . \� \ l 951`I 00' II / / / \ •`' .,, 11LL1��' :1 " i I 1 (f I� , :w N � —� � � I / / / / �. \ �'�', i.b �.. '• O rte ..S +•R {^ �' �. C }4 �� '` \ �I EXISTING I dam I 0 // // �. \ .y ``. \ .S•;�•�3:` ' -- `•. �•Js s E \) I I PA 20 {' I I / / (� \ • .' ^ �� t' ham•.. '.t. •'•�'• ti 'ti I 1 LEGEND 4 I III / �� \ ` I \l\ WIN 2' J O ` INVERT N-787 53' O EIP E %!STING IRON PIN FOUND ❑OM CONCRETE MONUMENT I r \ \ \ \ I NVERT�oUT- 785.95' pa O RIGHT OF WAY DISK 7 • NIP NEW IRON PIN SET R DISK I I I /� Q. CENTERLINE •PP POLE R/W RIGHT -OF -WAY � TELEP HONE P OLE Sq Ft. SQUARE FEET •� LIGHT POLE I I I II ' I 1 I 1 1 I r I 7R POLE \ \\\ 0 B DEED BOO( E LAT BOOK P B P P P POWER POLE 008 CATCH BASIN �. 1- ^ RCP REINFORCED CONCRETE PIPE ❑OM GAS METER CMP CORRUGATED METAL PIPE 0CV GAS VALVE I • ' 1 I I I I I ��\ °s PDA PROTECTED DRAINAGE AREA \ DRAINAGE MAINTENANCE QSSVH SANITARY SEWER MANN E \ i �J I I I I I / / / III \ \\ 1 I $ u %iw v m D M.0 E o� SEWER LINE CLEAN OUT k UTILITY EASEMENT OOH STORM GRAIN MANHOLE E U ELECTRICAL E UTILITY EASEMENT ❑n YARD INLET MBL MINIMUM BUILDING LINE Om CATCH BASIN O I I I . 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O U1 i I I ^ O I '� U1 D I CO a � 3 a3 Q:3 l7 O-i m» 2 C CD rn Z� MO: o I CD I fD°y�D- I `� 01D. C !� ` o z'u 33 I rt ao Q +n I ° m °'+..o� N 7 O F-1� W ZJZ Nr(n a I I I a o, 0, O 3' C t C II j°NV�i>0, Z7 d '►1 j I I O O I ?oc� omov I rno��Na Z I Q3a3 1 D 5,5- 7 ° 0 N rt 0 ° _ Ort 3 O LEGEND O IRON PIN (FOUND) s MANHOLE SANITARY SEWER) PROPERTY LINE • IRON PIN (SET) MANHOLE STORM DRAIN ADJOINERS • MANHOLE (WATER) a an Delineation urvey or RIGHT -OF -WAY � UMENT CONCRETE MON ® YARD INLET FENCE LINE N/F NOW OR FORMERLY 0 CURB INLET NOVAMELT — P — P — P — P — P — OVERHEAD POWER LINES YI YARD INLET © TRANSFORMER BOX 56 38 UWHARRIE RD . — T — T — T — T — T — AT &T UNDERGROUND CABLE CI CURB INLET p TELEPHONE PEDESTAL EASEMENT P 0 B. POINT OF BEGINNING 0 WATER METER MINIMUM BUILDING LINE • POWER POLE ® CABLE PEDESTAL CURB & GUTTER ¢ LIGHT POLE W GAS METER STORM SEWER CA DRAINAGE DITCH weep WEAN OUT Qe WATER VALVE � CITY OF TRINITY /� RANDOLPH COUNTY, NORTH CAROLINA \ \ \ \ \ \ \ \ cqO \ \ \ / i' 4 APRIL, 2013 100' 0 100 , 200' SCALE: 1 " = 20' Sheet 2 of 2 �`� \ \ , \ \ \ \ / This certifies that this plat accurately depicts the \ 6� P \ \ 9 / / boundary of the jurisdiction of Section 404 of the Clean \ \ \ s \ \ \ \ Water Act as determined by the undersigned on this \ \ \ \ \ published \ ` / I / date. Unless there is a change in the law or our regulations, this determination of Section 404 ` / y P 9 \ \ N �13M + .F' q \ \ \ \ \ \ ` /' jurisdiction may be relied upon for a period not to Q / exceed five years from this date. This determination 1 QNt1�113 �` y ` \� 2 \ \ \ \ \ — / 1 was made utilizing ,the 1987 Corps of Engineers Wetlands ° y 3\ Delineation Manual.' E I N � �83 \ \ \ \ — — — — Name y97. SP . q (Title) , q y _ ----------------------------------- N 76. (Dote) - - - - -- 9.3-3�L3 - - , 2 - 1 \` — — — — — — — — — — — — — — — — — — — — — — — — — — - - -- L23. yL2 . y . L. . . . W . .. �7.6�� , L27 y y �\ N 8!' -25'-0 3� I n-Y �� nl� 8., yS °84`t38w04'" 24.3 V �T !� —}�J ES B STEPHENS, certify that this is not a boundary y 9 ur y, boundary information shown hereon taken from property records. n \ ^ /Z~ \ 8� • -' -�' Fla in delineating wetlands as denoted b the Corps of Engineers was field i� ^ L 30 9 d y P 9 ��'� � b= 2� � .a �� ^y ��_ � 15.63' \� Flo ed and plotted hereon. �� �>7 - \ �b �b b a a �\ J1 T \1Ni ess my hand and seal thi day o 2013. _ n' 2 =„�° CARD c— 7g,P I \ O i \nl ' ` .2�•��OE SS 0�.9 � Professional Land rveyor �i O \ \ SEAL L -3348 _ !4b g ;' L -3348 { Registration Number 3 cc '161 fell O Line Bearing Distance Line Bearing Distance Line Bearing Distance JAMESTOWN ENGINEERING GROUP, INC., L1 N 87 °- 22' -49' W 15.87' L13 S 72 °- 29' -57' W 6.78' L25 S 83 °- 49' -37' E 9.47' L2 N 70 °- 51' -08' W 11.17' L14 S 14 °- 25' -15' W 6.08' L26 S 83 °- 59' -16' E 11.41' CONSULTING ENGINEERS L3 N 86 °- 40' -25' W 15.65' L15 S 4 °- 05' -17' E 5.53' L27 S 83 °- 36' -44' E 12,55' L4 N 76 °- 04' -16' W 12.27' L16 S 15 °- 10' -35' E 13.39' L28 S 84 °- 47' -08' E 9.51' 117 EAST MAIN STREET o L5 N 62 °- 47' -04' W 5.82' L17 S 86 °- 23' -08' E 10.49' L29 S 79 °- 02' -26' E 10.87' P.O. BOX 365 `V L6 N 73 °- 50' -23' W 9.45' L18 S 56 °- 13' -42' E 9.69' L30 S 83e- 13' -04' E 12.87' JAMESTOWN, N.C. 27282 C14 L7 N 59 °- 30' -22' W 10.55' L19 S 53 °- 55' -10' E 8.29' L31 N 35'-54'-55' E 5.00' r C'' L8 N 55 °- 12' -11' W 6.07' L20 S 69 °- 08' -21' E 9.24' Telephone (336) 886 -5523 N L9 N 61 °- 52' -13' W 7.77' L21 S 22 °- 10' -07' E 3.53' C -0626 L10 N 51 °- 03' -55' W 11.66' L22 S 84 °- 46' -12' E 6.95' L11 N 36 °- 27' -45' W 7,28' L23 S 84 °- 25' -52' E 16.14' Job No. 2012 -054 L12 N 55 °- 31' -10' W 6.65' JAMESTOWN ENGINEERING GROUP, INC. CIVIL ENGINEERS & SURVEYORS LAND PLANNING - MUNICIPAL CONSULTING /�E inc. 117 East Main Street - P.O. Box 365 - Jamestown, N.C. 27282 Telephone (336) 886 -5523 Fax (336) 886 -5478 www jamestownengineering.com May 2, 2013 20130473 Re: Novamelt Randolph County, NC 404/401 PCN Novamelt Americas, LLC JEG Job No. 2012 -054 NC DENR Division of Water Quality 401 Wetland Unit 1650 Mail Service Center Raleigh, NC 27699 -1650 To Whom It May Concern: "A. With regard to the referenced site, and on behalf of Novamelt Americas, LLC, we have enclosed five copies of the Pre - Construction Notification Application for Nationwide Permit 39 for your review and approval. The site is to be developed for industrial use. We have attached copies of the USGS Topography Map and Randolph County Soils Map for this area, an overall impact map, a vicinity map, $240 review fee, and enlarged specific impact maps. Also enclosed are three copies of Stormwater Management Plan and related materials. We have minimized impacts to the maximum extent practical while still allowing for fire access to the buildings as desired by the City of Trinity for public safety and service. If there are any questions or additional information required, please call. CCP /cp Enclosures Yours very truly, JAMESTOWN ENGINEERING GROUP, INC. " 7Z /�' ('�?' Thomas R. (Rich) Glover, Jr., PE 20130473 STORMWATER MANAGEMNET PLAN HYDRAULIC CALCULATIONS FOR NOVAMELT PROJECT: 2012 -054 APRIL, 2013 •'�•�N �ARp ¢ss .yy 27 5 S �j�13 CCLg .�Nvp� MAY 3 ?.013 69AR - wATEx uXrnr JAMESTOWN ENGINEERING CROUP, INC. 117 EAST MAIN STREET P. 0. BOX 365 JAMESTOWN, NC 27282 (336) 886 -5523 C — 0626 Stormwater Narrative Summary Novamelt is expanding their current facility to include a 12,000 SF office/lab and 48,126 SF of warehouse space. All proposed impervious and the vast majority of the existing untreated impervious areas, will drain to the on -site wet detention pond. The overall Stormwater Plan will conform to the City of Trinity Stormwater Ordinance. Wet Detention Pond The wet detention pond will protect 51.7% of the impervious area (3.0 AC out of 5.8 AC) on site. The pond is designed to treat the first inch of rainfall runoff from a storm event. The pond has been sized to handle 4.0 AC of drainage area and treat 3.0 AC of impervious area. The principal spillway for the pond discharges into vegetated filter. Included with this stormwater package is pond routing for 1 -year 24 -hour, 10 -yer, and 100 -year storm events. JAMESTOWN ENGINEERING GROUP, INC. 117 E. MAIN STREET JAMESTOWN, NC 27282 WATER QUALITY POND I. GENERAL A. DE9IGi CRITERIA DESIGN I9 SUED UPON CITY OF TRINITY S7 TER GUIDHLINES FOR HATER QUALITY AND FLOOD CONTROL. S. SITE INFORMATION THE PROPOSED 8178 19 LOCATED WITHIN THE UNIWRRIE GENERAL MATERSHED GENERAL SITS DATA 19 LISTED BELON, BITE AREA 4 OPP -SITS AREA 0.00 TOTAL SITE AREA 4.00 OPP -SITE DRAINAGE AREA 0.00 SITE DRAINAGE AREA 4 DISTURBED AREA 4 6 UNITS PROPOSED (SINGLE FAMILY) 0 IMPERVIOUS AREA SP /LIMIT ( SINGLE FAMILY) 3000 IMPERVIOUS AREA (SINGLE PAN 0.00 IMPERVIOUS AREA (MULTI- PAN 0.00 UNITS (TOTAL) 0.00 STREETS, 9IDENALRB, BUILDIN 3.00 Ot AWAC Wr LOT a .00 AC 0.00 TOTAL 3.00 t BUILT UPON (FOR SITE DRAINAGE AREA) 75.00t t BUILT UPON IPOR TOTAL SITS AREA) 75.00t DU /ACRB (BITS) 0.0 C. NET POND INFORMATION /RBOUIREME TTS VOIAM RBOUIRSMENT9 OP POND 1 75.Ot IMPERVIOUS a 3.5 Lt 2.661 OP DRAINAGE AREA POOL SURFACE AREA REQUIRED .027 x 4.00 x 43560 ■ 4635 SP 1/0 PERM BED STORAGE .125 x 4.00 x 3630 ■ le15 CP • 1/2 TEMP SW STORAGE .000 x 4.00 x 3630 0 C9 TOTALOSDINSITT STORAGE VOLUME REQUIRED 1015 CP RUNOPP VOLUME 0 3.0 x Rv x DA where Rv ■ 0.05 i 0.009 (I) TEMPORARY VOLUME ■ 1.0 to x 0.73 x 4.00 ■ 10527 CP D. METHOD OF ANALYSIS INFLOW NYDROGRAPHSz PEAR INPLOMSs POND ROUTINGS II POND 11 DESIGN A. INP[AW HYDROGRAPHS 1. PRE- DEVBI.OPBMENT OFP -BITE AREA (41/4 ACC LOTS) ON -BITE AREA (UNIMPROVED) SMALL WATERSHED METHOD RATIONAL. METHOD REGRESSION ANALYSIS FOR STAGE STORAGE RELATIONSHIP 0.00 ACRES C. 4.00 ACRES C. 4.0 ACRES C. 0.35 0.34 0.34 TIME OF CONCENTRATION HYDRAULIC PATH VELOCITY LBNOTH TIME SHEET FLOW .5 fps 200 ft 400 sec CHANNEL FUN 0.0 fps 400 ft SO Dec 450 sec Te a 7.5 min PEAL( FLOW Q ■ CIA I(2) 0 3.6 in /hr 1(10) 5.0 in /hr 1(100) 8.0 in /hr O(t) • 5.0 CPO 0(10) 0 0.1 CPS QUM • 11.2 cps 2. POST- DEVELOPEMENT OFF -BITE AREA (41/4 AC LOTS) 0 ACRES C. 0.35 ON -BITE AREA 75.001k IMPERVIOUS IMPERVIOUS 3.00 ACRES C. 0.95 LAMM 1.00 ACRES 0.35 BITE DRAINAGE AREA AVERAGE 0.80 COMPOSITE 4.0 ACRES C. 0.80 TIME OF CONCENTRATION HYDRAULIC PATH VELOCITY LKNOTH TINS MOW PLON 5 fps 100 ft 200 sec CHANNEL PLOW 0.0 fps 700 ft 68 Bee 200 sec Tc a 4.0 min PEAK PLO" 0 • CIA L(2) a 3.6 in /hr I(10) 5.8 in /hr I(100). 8.0 in/hr Q(2) 11.5 CPS 0(10) a 18.6 CPS 0(300) 25.6 CPS DEPTH OF RUNOFF 1 -YEAR 24 -HOUR PRECIPATION (P) 0 2.00 in 10 -YEAR 6 -HOUR PRSCIPATION (P) • 3.71 in 100 -YEAR 6 -HOUR PRECIPATION (P) • 4.93 in Cy o 03 B • (1000 /CN) -10 a 2.05 in RUNOFF OEM (00) a (P -0.2 x 9)'2 /(P+0.8 x S) • 1.29 in 2 -YEAR 6 -HOUR RUNOFF DEPTH RUNOFF DEPTH (0*) • lP -0.2 x S)'2 /(P+0.8 x 8) • 2.04 in 30 -YEAR 6 -HOUR RUNOFF DEPTH RUNOFF DEPTH(Q•) - (P -0.2 x 8)'2/(Pr0.8 x B) • 3.11 in 100 -YEAR 6 -HOUR RUNOFF DEPTH TIME OT PEAK a RUNOFF VOLUME /(1.39 x Q 2 -YRAR 19.46 min TINS OT PEAK • RUNOFF VOLUME/(1.39 x Q 10 -YEAR 19.10 min TIME OT PEAK o RUNOFF VOLUNS /(1.39 x 0 100 -YEAR 21.16 min S. ESTIMATE STORAGE AVERAGE • 10.383 1.036 ASSUME SEDIMENT STORAGE ELEVATION v 792.0 SEDIMENT STORAGE VOLUME PBRMANwr . 1026 CP 1. S . (Q(Poat)- Q(Pre)) • TP • 796.00 SURFACE AREA PROVIDED a 7352 SP PERMANENT MATER QUALITY VOLUME • 19420 CP a . 1863 CP . 797.50 TEMPORARY MATER QUALITY VOLUME . 13279 CP ASSUME EMERGENCY SPILLWAY ELEVATION . 799.00 2. POND ELEVATIONS /AREA/VOUM . 792.0 3. REGRESSION ANALYSIS SUMMARY OUTPUT PERFORMED ON TART 9 ENTRIES where b•l sum( 1n18)• lal L))- 1/ a• eum( ln( E)►• auml). n( 8)))/( eum (ln(Ll'2)- 1 /a•(avmlla(E►))"2) b. 1.85 CUMULATIVE a. 6.99 PERM SID STORAGE RBQ'D R'2- (sum(ln(Z)•la(9))- n•ln(L) In (8)_)'2 /((sum(ln(a)'2)- 1815 CP 1815 CP Ka -e'a TEMP STORAGE RBQ'D Ks- 1081 0 CP 1815 CP BSTIKRTED STAGE STORAGE 1063 CP 3678 CP A881AE POND INVERT (EOTTOM OF FORD) . 791.0 SEDIMENT STORAGE REQUIRED 1815 CP MATER QUALITY SURFACE AREA REQUIRED 4635 8P SIDIMwff SEDIMENT ACCUMAIATED L Z STORAGE STORAGE am AREA VOLUME VOLUME STAGE In 9 In I eat SLEV CP 791.00 2290 0 0 0.0 0.00 791.70 1826 792.00 2933 2609 2609 1.0 7.067 0.000 1.61 792.00 793.00 3634 3277 5886 2.0 0.680 0.593 2.50 794.00 4401 4011 9898 3.0 9.200 1.099 3.31 795.00 5235 4812 14710 4.0 9.596 1.386 4.10 795.50 5676 2727 17437 4.5 9.766 1.504 4.49 796.00 7264 3227 20664 5.0 9.936 1.609 4.93 796.50 9027 4064 24728 5.5 10.116 1.705 5.43 797.00 9509 4653 29382 6.0 10.205 1.792 5.96 790.00 10762 10170 39551 7.0 10.505 1.946 7.00 799.00 11997 11374 50925 0.0 10.830 2.079 0.02 600.00 13293 12639 63565 9.0 11.060 2.197 9.04 801.00 14645 13964 77528 10.0 11.258 2.303 10.06 792.00 1826 1015 CP REQUIRED a 4635 SP REQUIRED 10527 CP REQUIRED RISOR AVERAGE • 10.383 1.036 ASSUME SEDIMENT STORAGE ELEVATION v 792.0 SEDIMENT STORAGE VOLUME PBRMANwr . 1026 CP ASSUME ORIFICE Bf.EVATIOM • 796.00 SURFACE AREA PROVIDED a 7352 SP PERMANENT MATER QUALITY VOLUME • 19420 CP ASSUME VISOR ELEVATION . 797.50 TEMPORARY MATER QUALITY VOLUME . 13279 CP ASSUME EMERGENCY SPILLWAY ELEVATION . 799.00 ASSUME BARREL. INVERT ELEVATION . 792.0 3. REGRESSION ANALYSIS SUMMARY OUTPUT PERFORMED ON TART 9 ENTRIES where b•l sum( 1n18)• lal L))- 1/ a• eum( ln( E)►• auml). n( 8)))/( eum (ln(Ll'2)- 1 /a•(avmlla(E►))"2) b. 1.85 a.l /a•snmlla(8)!- b /n•aum(ln(L)) a. 6.99 R'2- (sum(ln(Z)•la(9))- n•ln(L) In (8)_)'2 /((sum(ln(a)'2)- n•In(Z): 2)- (sum(In19) 2)- n•ln(e)_ 2) R'2. 1.00 Ka -e'a Ks- 1081 792.00 1826 1015 CP REQUIRED a 4635 SP REQUIRED 10527 CP REQUIRED RISOR C. OUTLET STRUCTURES 1. PRINCIPLE SPILLWAY INVERT 9MATION . 792.0 ASSUME RISOR ELEVATION . 797.5 SOLVE FOR ROUGH RISOR 9198 0 6.1 CPO DIAKSM (in).0.12/(Cw•(H'3/2)•3.14159) ROUGH DIAMETER o 16 in SOLVE FOR ROUGH BARREL 8IT6 DIAIETER(in). (014/(3.14159 *Cd *(2 *9 *h)'.S)'.5 ROUGH DIAMETER . 11 in ASSUME RISOR VIA • 24 in 24 ASSUME BARREL VIA . 14 in 15 ASSUME ORIFICE PLATE VIA . 10 in 14 2. EMERGENCY SPILLWAY SOLVE FOR WEIR LENGTH USE h. 1.0 ft ASSUME SPILLWAY 9LBV . 799.0 Im0 /(Cw*h'3 /2) where 0(100) . 25.6 cfe RISOR 0 0 9M 797.50 s 5.8 cis EMERGzWcY SPILLWAY Q • 19.8 cfe WEIR LOTH (ft) • 7 ft 100 -YEAR N.W.L. . 798.98 TOP OF DAN . 801.0 WEIR ORIFICE, ORIPICB PRINCIPAL EMERGENCY TOTAL BLEU RISOR BARREL RISOR SPILLWAY SPILLWAY OUTPLON 797.5 0.0 S.8 0.0 0.0 0.0 0.0 797.7 1.9 5.9 6.8 1.9 0.0 1.9 797.9 S.2 6.0 9.6 5.2 0.0 5.2 798.1 9.6 6.1 11.7 6.1 0.0 6.1 798.3 14.8 6.3 13.5 6.3 0.0 6.3 798.5 20.7 6.4 15.1 6.4 0.0 6.4 798.7 27.3 6.5 16.6 6.5 0.0 6.5 798.9 34.3 6.6 17.9 6.6 0.0 6.6 799.1 42.0 6.7 19.1 6.7 0.9 7.6 799.3 50.1 6.8 20.3 6.8 4.9 11.7 799.5 58.6 6.9 21.4 6.9 30.6 17.5 799.7 67.7 7.0 22.4 7.0 17.6 24.6 799.9 77.1 7.1 23.4 7.1 2S.6 32.7 000.1 86.9 7.2 24.4 7.2 34.6 41.8 ALLOWABLE OUTFLOW . 8.1 CFO . D. ROUTING 2. 10 6 100 YEAR POST- DEVELOPBKENT BTORN TNRV POND 1. INPUT DATA FOR 1 -YEAR STORM 0(2) 11.5 TP 19.46 TINS INCREMENT 2.00 min KO 1081 b 1.85 INVEST ELEVATION 791.00 ORIFICE ELEVATION 796.00 RIGOR ELEVATION 797.50 PERMANBMT STORAGE 34526 8K SPILLWAY RLEV 799.00 WEIR ORIFICE ORIFICE PRINCIPAL EKMGE 7CY TOTAL PREDEVELOPEN TINE INPIAN STORAGE STAGS RIGOR BARREL RIGOR SPILLWAY SPILLWAY OUTFLOW FLOW 0.00 0.0 21246 796.00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.00 0.3 21264 7%.00 0.0 0.0 0.0 0.0 0.0 0.0 0.1 4.00 1.2 21352 796.01 0.0 0.0 0.0 0.0 0.0 0.0 0.5 6.00 2.5 21571 796.04 0.0 0.0 0.0 0.0 0.0 0.0 1.1 8.00 4.2 21972 796.09 0.0 0.0 0.0 0.0 0.0 0.0 1.8 10.00 6.0 22403 796.17 0.0 0.0 0.0 0.0 0.0 0.0 2.6 12.00 7.8 23413 796.27 0.0 0.0 0.0 0.0 0.0 0.0 3.4 14.00 9.4 24440 796.39 0.0 0.0 0.0 0.0 0.0 0.0 4.1 16.00 10.6 2S653 796.54 0.0 0.0 0.0 0.0 0.0 0.0 4.7 18.00 11.4 26973 796.69 0.0 0.0 0.0 0.0 0.0 0.0 5.0 20.00 11.5 20345 796.84 0.0 0.0 0.0 0.0 0.0 0.0 5.0 22.00 11.0 29697 796.99 0.0 0.0 0.0 0.0 0.0 0.0 4.8 24.00 10.0 30962 797.13 0.0 0.0 0.0 0.0 0.0 0.0 4.4 26.00 0.0 32092 797.25 0.0 0.0 0.0 0.0 0.0 0.0 3.8 20.00 7.7 33082 797.35 0.0 0.0 0.0 0.0 0.0 0.0 3.4 30.00 6.7 33948 797.44 0.0 0.0 0.0 0.0 0.0 0.0 2.9 32.00 S.9 34702 797.52 0.0 5.8 2.0 0.0 0.0 0.0 2.6 34.00 5.2 35333 797.58 0.5 5.0 4.3 0.5 0.0 0.5 2.3 36.00 4.5 35025 797.63 1.0 5.9 5.5 1.0 0.0 1.0 2.0 38.00 3.9 36188 797.67 1.4 5.9 6.2 1.4 0.0 1.4 1.7 40.00 3.5 36442 797.69 1.0 5.9 6.6 1.0 0.0 1.0 1.5 42.00 3.0 36607 797.71 2.0 S.9 6.9 2.0 0.0 2.0 1.3 44.00 2.6 36701 797.72 2.1 S.9 7.1 2.1 0.0 2.1 1.2 46.00 2.3 36741 797.72 2.2 S.9 7.1 2.2 0.0 2.2 1.0 40.00 2.0 36741 797.72 2.2 5.9 7.1 2.2 0.0 2.2 0.9 50.00 1.8 36711 797.72 2.1 S.9 7.1 2.1 0.0 2.1 0.8 52.00 1.5 36659 797.71 2.1 S.9 7.0 2.1 0.0 2.1 0.7 54.00 1.4 36592 797.71 2.0 5.9 6.9 2.0 0.0 2.0 0.6 56.00 1.2 36516 797.70 1.9 S.9 6.8 1.9 0.0 1.9 O.S 58.00 1.0 36434 797.69 1.7 S.9 6.6 1.7 0.0 1.7 0.5 60.00 0.9 36349 797.68 1.6 5.9 6.5 1.6 0.0 1.6 0.4 62.00 0.8 36262 797.67 1.5 5.9 6.3 1.S 0.0 1.5 0.3 64.00 0.7 36177 797.67 1.4 5.9 6.2 1.4 0.0 1.4 0.3 66.00 0.6 36092 797.66 1.3 5.9 6.0 1.3 0.0 1.3 0.3 60.00 0.5 36011 797.65 1.2 5.9 5.9 1.2 0.0 1.2 0.2 70.00 0.9 35932 797.64 1.1 5.9 5.7 1.1 0.0 1.1 0.2 72.00 0.4 3SOS7 797.63 1.0 5.9 S.9 1.0 0.0 1.0 0.2 74.00 0.4 35785 797.63 0.9 5.9 S.4 0.9 0.0 0.9 0.2 76.00 0.3 35717 797.62 0.9 5.9 4.2 0.9 0.0 0.9 0.1 78.00 0.3 35653 797.61 0.8 S.9 S.1 0.8 0.0 0.0 0.1 00.00 0.2 35591 797.61 0.7 5.9 5.0 0.7 0.0 0.7 0.1 82.00 0.2 35534 797.60 0.7 5.9 4.8 0.7 0.0 0.7 0.1 04.00 0.2 39480 797.60 0.6 5.9 4.7 0.6 0.0 0.6 0.1 PEAK INFIAW a 11.5 CPS PEAK OUTFLOW 2.2 CPS PEAK ALLONABLS OUTFLOW S.0 CP8 PEAK BLSV . 797.72 PEAK STORAGE a 36741 CP 2. INPUT DATA FOR 10•YEM STORK Q(10) 19 TV 19.10 min TIME INCREMEIT 2.00 min Ke 1081 b 1.85 INVERT ELEVATION 791.00 ORIPICE ELEVATION 796.00 RISOR ELEVATION 797.50 PBRKANEWT STORAGE 21246 BW SPILLWAY ELEV 799.00 TIME INPIAN STORAGE STAGE "SIR ORIFICE ORIFICE PRINCIPAL BKBRGBNCY TOTAL RISOR BARREL RISOR SPILLWAY SPILLWAY OUTPIAX 0.00 0.0 21246 796.00 0.0 0.0 0.0 0.0 0.0 0.0 2.00 0.5 21276 796.00 0.0 0.0 0.0 0.0 0.0 0.0 4.00 1.9 21422 796.02 0.0 0.0 0.0 0.0 0.0 0.0 6.00 4.2 21788 796.07 0.0 0.0 0.0 0.0 0.0 0.0 8.00 6.9 22454 796.15 0.0 0.0 0.0 0.0 0.0 0.0 10.00 10.0 23468 796.28 0.0 0.0 0.0 0.0 0.0 0.0 12.00 12.9 24841 796.44 0.0 0.0 0.0 0.0 0.0 0.0 14.00 15.5 26545 796.64 0.0 0.0 0.0 0.0 0.0 0.0 16.00 17.4 28516 796.86 0.0 0.0 0.0 0.0 0.0 0.0 18.00 19.4 30663 797.10 0.0 0.0 0.0 0.0 0.0 0.0 20.00 18.5 32075 797.33 0.0 0.0 0.0 0.0 0.0 0.0 22.00 17.5 35021 797.55 0.2 5.8 3.4 0.2 0.0 0.2 24.00 15.7 36861 797.73 2.3 5.9 7.3 2.3 0.0 2.3 26.00 13.7 38212 797.87 4.6 6.0 9.2 4.6 0.0 4.6 28.00 12.0 39116 797.95 6.3 6.1 10.2 6.1 0.0 6.1 30.00 10.5 39733 798.01 7.6 6.1 10.8 6.1 0.0 6.1 32.00 9.1 40175 798.OS 0.6 6.1 11.3 6.1 0.0 6.1 34.00 8.0 40465 798.00 9.2 6.1 11.5 6.1 0.0 6.1 36.00 7.0 40623 798.10 9.6 6.1 11.7 6.1 0.0 6.1 38.00 6.1 40667 798.10 9.7 6.1 11.7 6.1 0.0 6.1 40.00 5.3 40612 796.10 9.5 6.1 11.7 6.1 0.0 6.1 42.00 4.6 40470 798.08 9.2 6.1 11.5 6.1 0.0 6.1 44.00 4.0 40254 798.06 8.7 6.1 11.3 6.1 0.0 6.1 46.00 3.S 39973 798.04 8.1 6.1 11.1 6.1 0.0 6.1 40.00 3.1 39637 798.00 7.4 6.1 10.7 6.1 0.0 6.1 50.00 2.7 39252 797.97 6.6 6.1 10.3 6.1 0.0 6.1 52.00 2.3 38842 797.93 5.8 6.0 9.9 S.8 0.0 S.8 54.00 2.0 30445 797.69 5.0 6.0 9.4 5.0 0.0 5.0 56.00 1.8 36116 797.06 4.4 6.0 9.0 4.4 0.0 4.4 58.00 1.6 37818 797.63 3.9 6.0 8.7 3.9 0.0 3.9 60.00 1.4 37553 797.80 3.4 6.0 0.3 3.4 0.0 3.4 62.00 1.2 37316 797.78 3.1 6.0 0.0 3.1 0.0 3.1 64.00 1.0 37103 797.76 2.7 5.9 7.7 2.7 0.0 2.7 66.00 0.9 36911 797.74 2.4 5.9 7.4 2.4 0.0 2.4 60.00 0.0 36737 797.72 2.2 5.9 7.1 2.2 0.0 2.2 70.00 0.7 36579 797.71 1.9 5.9 6.9 1.9 0.0 1.9 72.00 0.6 36436 797.69 1.7 5.9 6.6 1.7 0.0 1.7 74.00 0.5 36304 797.60 1.6 S.9 6.4 1.6 0.0 1.6 76.00 0.5 36184 797.67 1.4 5.9 6.2 1.4 0.0 1.4 78.00 0.4 36074 797.66 1.3 S.9 6.0 1.3 0.0 1.3 60.00 0.3 35973 797.65 1.2 5.9 S.0 1.2 0.0 1.2 82.00 0.3 39800 797.64 1.0 5.9 5.6 1.0 0.0 1.0 84.00 0.3 35795 797.63 0.9 5.9 5.4 0.9 0.0 0.9 06.00 0.2 35716 797.62 0.9 5.9 5.2 0.9 0.0 0.9 88.00 0.2 35643 797.61 0.0 5.9 5.1 0.0 0.0 0.0 PEAR INFLOW o 18.96 CFS PEAR OUTFLOW a 6.15 CPS PEAK ALLOWABLB 0Unll II 0.12 CPS PEAR SLEW, o 790.10 PEAK STORAGE a 40667 CF 3. INPUT DATA FOR 100 -YEAR STORM 0(100) 26 TV 21.16 min TIME INCRSN3NT 2.00 min KS tool b 1.85 INVERT ELEVATION 791.00 ORIFICE ELEVATION 796.00 RIGOR ELEVATION 797.50 PSRMMBNP STORAGE 23246 SK SPILLWAY SLSV 799.00 TINS INFLOW STORAGE STAGS WEIR ORIFICE ORIFICE PRINCIPAL EMERGENCY TOTAL RIGOR BARREL. RIGOR SPILLWAY SPILLWAY OUTFLOW 0.00 0.0 21246 796.00 0.0 0.0 0.0 0.0 0.0 0.0 2.00 0.4 21280 796.00 0.0 0.0 0.0 0.0 0.0 0.0 4.00 2.2 21445 796.03 0.0 0.0 0.0 0.0 0.0 0.0 6.00 4.8 21062 796.08 0.0 0.0 0.0 0.0 0.0 0.0 8.00 8.0 22628 796.17 0.0 0.0 0.0 0.0 0.0 0.0 10.00 11.7 23812 796.32 0.0 0.0 0.0 0.0 0.0 0.0 12.00 15.5 25443 786.51 0.0 0.0 0.0 0.0 0.0 0.0 14.00 19.0 27513 796.79 0.0 0.0 0.0 0.0 0.0 0.0 16.00 22.0 29977 797.02 0.0 0.0 0.0 0.0 0.0 0.0 18.00 24.2 32751 797.32 0.0 0.0 0.0 0.0 0.0 0.0 20.00 25.4 35680 797.62 0.8 5.9 5.2 0.0 0.0 0.8 22.00 25.5 38390 797.88 4.9 6.0 9.4 4.9 0.0 4.9 24.00 24.5 40724 798.11 9.8 6.1 11.8 6.1 0.0 6.1 26.00 22.4 42794 798.30 14.8 6.3 13.5 6.3 0.0 6.3 28.00 19.9 44577 790.46 19.6 6.3 14.8 6.3 0.0 6.3 30.00 17.6 46059 798.60 23.8 6.4 15.6 6.4 0.0 6.4 32.00 15.6 47274 798.70 27.4 6.5 16.6 6.9 0.0 6.5 34.00 13.8 40252 798.79 30.3 6.5 17.2 6.5 0.0 6.5 36.00 12.2 49023 798.86 32.7 6.5 17.6 6.6 0.0 6.6 38.00 10.8 49610 798.91 34.6 6.6 17.9 6.6 0.0 6.6 40.00 9.5 50035 798.94 35.9 5.6 18.2 6.6 0.0 6.6 42.00 8.4 50317 798.97 36.8 6.6 18.3 6.6 0.0 6.6 44.00 7.4 50474 798.98 37.4 6.6 18.4 6.6 0.0 6.6 46.00 6.6 50521 798.98 37.5 6.6 18.4 6.6 0.0 6.6 49.00 5.8 50470 798.98 37.3 6.6 18.4 6.6 0.0 6.6 50.00 5.1 50334 798.97 36.9 6.6 18.3 6.6 0.0 6.6 52.00 4.6 50122 798.95 36.2 6.6 16.2 6.6 0.0 6.6 54.00 4.0 49645 798.93 35.3 6.6 18.1 6.6 0.0 6.6 56.00 3.6 49910 798.90 34.3 6.6 17.9 6.6 0.0 6.6 58.00 3.1 49124 798.66 33.0 6.6 17.7 6.6 0.0 6.6 60.00 2.8 48694 798.63 31.7 6.5 17.4 6.5 0.0 6.5 62.00 2.5 48225 798.79 30.3 6.5 17.2 6.5 0.0 6.5 64.00 2.2 47722 790.74 26.7 6.5 16.9 6.5 0.0 6.5 66.00 1.9 47190 798.70 27.1 6.5 16.5 6.5 0.0 6.5 68.00 1.7 46633 798.65 25.5 6.4 16.2 6.4 0.0 6.4 70.00 1.5 46054 798.59 23.8 6.4 15.8 6.4 0.0 6.4 72.00 1.3 45456 798.54 22.0 6.4 15.4 6.4 0.0 6.4 74.00 1.2 44842 798.49 20.3 6.4 15.0 6.4 0.0 6.4 76.00 1.0 44214 790.43 18.6 6.3 14.6 6.3 0.0 6.3 78.00 0.9 43574 798.37 16.9 6.3 14.1 6.3 0.0 6.3 80.00 0.8 42925 798.31 15.2 6.3 13.6 6.3 0.0 6.3 82.00 0.7 42267 798.25 13.5 6.2 12.1 6.2 0.0 6.2 84.00 0.6 41603 798.19 11.9 6.2 12.6 6.2 0.0 6.2 06.00 0.6 40934 798.13 10.3 6.2 12.0 6.2 0.0 6.2 80.00 0.9 40261 798.06 0.8 6.1 11.3 6.1 0.0 6.1 90.00 0.4 39504 798.00 7.3 6.1 10.7 6.1 0.0 6.1 92.00 0.4 38913 797.93 5.9 6.1 10.0 5.9 0.0 5.9 94.00 0.3 38314 797.08 4.8 6.0 9.3 4.8 0.0 4.8 96.00 0.3 37831 797.63 3.9 6.0 8.7 3.9 0.0 3.9 98.00 0.3 37436 797.79 3.2 6.0 8.2 3.2 0.0 3.2 PSAK INPLOM a 25.60 CPS PEAK OUTFLOW . 6.62 CPS PRAK BLEV a 798.98 PEAK STORAGE - 50521 CP B. ORIFICE ROLE 4 -DAY RBLBABE NUMBER OF ROLES 2 AVEME SURFACE AREA BSS3 8P DRTMION OEtrl'H 1.50 PT a o 0.419 /t *A *(h)'.S a . 1.87 80 IN d . 1.09 IN 1 1116 in 8 -DAY RELEASE NUMBER OF 100186 2 AVSRAOS SURFACE AREA 8853 8F DETENTION DEPIH 1.50 Pr a . 0.415 /t *A•Ih)".S a . 0.94 80 IN d . 0.77 IN 0 12/16 in AVE d o 0.93 IN 0 15/16 111 F. MDTATION OF RIBOR VOIAME OF RIGOR ASSUME INVERT BLEV . 792.0 ASSUME RIBOR BLEU a 797.5 RI80R DIANN = . 24 in V . 3.14159•r'2•h V . 17.3 CP VOLUM OF BARREL ASSUME LENGTH a 15.00 ft BARREL DIAMETER . 15 is V . 3.14159•r'29L V 18.4 CP TOTAL VOLUME o 3S.7 CP CONCRETE REQ'D DISPLACED WATER o 2227 1E WEIGHT OF CORCRRTE (BOUTANT) . 87.60 LE /CP CONCRETE RSQ'D o 28.4 CP RIBOR AREA . 3.1 8P CONCRETE REO'D . 8.1 LF ADD 15% SAFETY FACTOR o 9.3 LF 29.2 OF SUMMARY TOP OF DAM 801.0 100 -YEAR NIGH WATER 799.0 10 -YEAR HIGH WATER 798.1 S03ROUM SPILLWAY BLEV 799.0 RISOR RLEV 797.50 ORIFICB RLBV 7%.00 INVBR7 BLEV 792.0 SEDIMENT STORAGE REWIRED 1815 CP SEDIMENT STORAGE PROVIDED 1026 CP SURFACE AREA REQUIRED 463S OF SURPACS AREA PROVIDED 7352 SP RI80R DIAMETER 24 in BARREL DIAMETER 15 in ORIPICR PLATE DIAtCIIER 10 in ORIFICE ROLE A /DIAMETER 2 a 1.09 in MBIR LENGTH 7 ft Permit No. (robe provided by O WO) A TA4 G NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required items Chest (Ped tin must be printed, filled out and submitted along w7M all of the required information. I. PROJECT INFORMATION Project name NOVAMELT Contact person Jim Auber Phone number 336-434 -9541 Date 4/10/2013 Drainage area number 1 II. DESIGN INFORMATION Site Characteristics Drainage area Impervious area, post -development % impervious Design rainfall depth Storage Volume: Non•SAWaters Minimum volume required Volume provided Storage Volume: SA Waters 15' runoff volume Pre- development 1 -yr. 24-hr runoff Post - development 1 -yr, 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the prelpost control of the tyr 24hr storm peak flow required? 1 -yr, 24-hr rainfall depth Rational C, pre - development Rational C, post -development Rainfall intensity: l -yr, 24 -hr storm Pre-development 1 -yr, 24-hr peak flow Post -development 1 -yr, 24 -hr peak flow Pre/Post 1 -yr, 24 -hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx. at the pens. pool elevation) Top of 10ft vegetated shelf elevation Bottom of 1011 vegetated shelf elevation Sediment cleanout, top elevation (bottom of pond) Sediment cleanout, bottom elevation Sediment storage provided Is there additional volume stared above the state - required temp. pool] Elevation of the top of the additional volume 174,240 f? 130,660 f? 75.00% 1.0 in 10,527 e 13,279 f? OK, volume provided is equal to or in excess of volume required. to ft to ft y (Y or N) �Jf�ll'f� 0.35 (unifless) 0.80 (unitiess) 3.60lnlhr OK 5.00 ft'lsec 11.50 fetsec 6.50 ftelsec 797.50 fmsl 796.00 fmsl 796.00 fmsl 796.50 Imsl 795.50 fmsl Data not needed for calculation option #1, but OK if provided. 792.00 fmsl 791.00 fmsl Data not needed for calculation option #1, but OK If provided. 1.00 It y (Y or N) fmsl Form SW401 -Wat Detention Basin- Rev.941r18112 Parts 1.8 11 Design Summary. Page 1 of II, DESIGN INFORMATION Surface Areas Area, temporary pool 7,352 fP Area REQUIRED, permanent pool 4,635 fe SAIDA ratio 2.66 (unitless) Area PROVIDED, permanent pool, 4w,jod 7,352 fig OK Area, bottom of 10ft vegetated shelf, Ak_de 3,351 ff Area, sediment deanout, top elevation (bottom of pond), �,,, , 792 If Volumes Volume, temporary pool 13,219 fly OK Volume, permanent pool, l�,,�D,,, 19,420 ft Volume, forebay (sum of forebays if more than one forebay) 4,080 ft Forebay % of permanent pool volume 21.0%% OK SAIDA Table Data Design TSS removal Coastal SAIDA Table Used? Mountain/Piedmont SAIDA Table Used? SAIDA ratio Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10.2b) Volume, permanent pool, I" Area provided, permanent pool, Average depth calculated Average depth used in SAIDA. tL, (Round to nearest 0.511) Calculation option 2 used? (See Figure 10.2b) Area provided, permanent pool, lwm_pw Area, bottom of 10ft vegetated shelf, " Area, sediment deanout, top elevation (bottom of pond), , 85 % N (YorN) Y (YorN) 2.66 (unitless) Y (Y or N) 19,420 ff 7,352 ft` 3.50 ft OK 3.5 ft OK N (Y or N) 7,352 I? 3,351 ft` 792 f? 'Depth' (distance blw bottom of 10ft shelf and top of sediment) 3.50 it Average depth calculated 3.50 ft Average depth used In SAIDA, d,,, (Round to down to nearest 0.511) 3.5 ft Drawdown Calculations Drawdown through orft? Diameter of orifice (d circular) Area of orifice (ifnon-drrwlar) Coefficient of discharge (Co) Driving head (F6) Drawdown through weir? Weir type Coefficient of discharge (C,) Length of weir (L) Driving head (H) Pre- development 1 -yr, 24-hr peak flow Post-development 1 -yr, 24-hr peak flow Storage volume discharge rate (through discharge orifice or weir) Storage volume drawdown time Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of flowpath to width ratio Length to width rata Trash rack for overflow & orifice? Freeboard provided Vegetated titer provided? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Drain mechanism for maintenance or emergencies is: Y (YorN) 1.55 in In' 0.60 (unilless) 1.50 ft N (YorN) (unitless) (unitless) It ft 5.00 f? /sec 11.50 fte /sec 0.05 ft /sec 3.00 days OK OK OK, draws down in 2 -5 days. Permit No. (to be provfdod by DWO) 3 :1 OK 10 :1 OK 10.0 ft OK 3 :1 OK F0—:1 OK Y (YorN) OK 1.0 ft OK Y (Y or M) OK N (Y or N) Insufficient Recorded drainage easement required. Y (Y or N) OK Shear gate on outlet structure Form SW401 -Wet Detention Basin-Rev.94N8112 Parts I. a 11 Design Summary, Page 2 of 2 Pennit 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 ❑ 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 *nkdu&ed 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: Potential problem: How I will remediate the problem: The entire BMP Trash debris is present. Remove the trash debris. The perimeter of the wet detention basin Areas of bare soil and /or erosive gullies have formed. Regrade the soil if necessary to remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one -time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. I approximately six inches. Form SW401 -Wet Detention Basin O&M -Rev.4 Page 1 of 4 Permit Number. (to be provided by DWQ) Drainage Area Number. BMP element: Potential problem: How I will remediate the problem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the Swale 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 erosion problems. 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 plants rather than s ra ' 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 algal growth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. Form SW401 -Wet Detention Basin O &M -Rev.4 Page 2 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number. BMP element: Potential problem: How I will remediate the problem: 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. if applicable) The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged 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 792 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 792 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (rill in the blanks) Permanent Pool Elevation 796 Sediment Removal EN L7�L2 - - - - - - - - - Pe anen Pool -- Volume Sediment Removal Elevation 722 Volume ottom E evati ft Min. -------------------------------------- - :j�i Sediment Bottom Elevation IU -ft Storage Storage FOREBAY MAIN POND Form SW401 -Wet Detention Basin O &M -Rev.4 Page 3 of 4 Permit Number. (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name: Novamelt BMP drainage area number: 1 Print name: ) ALIL Ptdn'c4 Address: 5608 Uwharrie Road Archdale, NC 27263 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, /l an :5e llem , a Notary Public for the State of N/n��- A d a h i x& , County of X , do hereby certify that 0-amo, yedi• ik g personally appeared before me this day of A Q /3 , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires -7 Y& Form SW401 -Wet Detention Basin O &M -Rev.4 Page 4 of 4 0 VICINITY MAP 1 " = 2000' f\ SITE AND UTILITY NOTES (APPLIES TO ALL SHEETS): GENERAL NOTES (APPLIES TO ALL SHEETS) 1. ALL WORK PERFORMED WITHIN THE UWHARRIE ROAD R/W 10. THE CONTRACTOR ciALL PROVIDE A TEMPORARY BARRIER .DURING CONSTRUCTION TO PREVENT SHALL BE IN ACCORDANCE WITH NCDOT STANDARDS. UNAUTHORIZED ACCESS TO CONSTRUCTION AREAS. THE BARRIER SHALL BE ORANGE 2. ALL SUB - GRADES SHALL BE APPROVED BY GEO- TECHNICAL HIGH DENSITY POLYPROPYLENE MESH FENCING (4' HEIGHT). PERSONNEL, AND PROOF ROLLED PRIOR TO PLACEMENT OF 11. THIS PLAN IS NOT A; SURVEY. THIS PLAN SHALL NOT BE USED FOR RECORDATION, STONE BASE MATERIAL. SURFACE COARSE SHALL OVERLAP SALES OR CONVEYAi `'ES, EXISTING PAVEMENT AT TIES TO PROVIDE FOR SMOOTH TRANSITION. PEDESTRIAN R U S SI 12. THERE SHALL BE NO DESIGNATED O ?E / D EWALKS WITHIN THE SITE (SEE PAVING REQUIREMENTS) WHICH EXCEED A 5% SLOPE IN THE DIRECTION ON TRAVEL AND A 2% CROSS-SLOPE. 3. FINISHED ASPHALT PAVEMENT AND CONCRETE SHOULD BE 13. ALL FILL MATERIAL 'WITHIN THE LIMITS OF THE CURB & GUTTER WILL BE PLACED IN COMPLETED SO THAT NO PONDING OCCURS. IF PONDING DOES ACCORDANCE WITH -1E GEO --TECH ENGINEER RECOMMENDATIONS TO A MINIMUM 957o STANDARD PROC-1011 MAX, DENSITY. PRIOR TO PLACEMENT OF CABC BASE COURSE, OCCUR, THE OWNER HAS THE RIGHT TO REQUIRE REMOVAL A PROOF ROLL WILL BE PROVIDED AND COORDINATED BY THE CONTRACTOR WITH THE OWNER'S AND REPLACEMENT. GEO• -TECH ENGINEER:., MATERIAL WILL BE.REMOVED/REPLACED AT NO COST TO THE OWNER AS 4. CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING DIRECTED BY THE G,,KINER'S GEO -TECH ENGINEER. APPLICABLE UTILITY LOCATION COMPANIES TO PROVIDE UTILITY 14. THE LOCATIONS IND::�..ATED FOR WATER AND SEWER TO ENTER THE BUILDING ARE LOCATIONS PRIOR TO ANY CONSTRUCTION ACTIVITIES. APPROXIMATE. THE CONTRACTOR SHALL REFER TO PLUMBING PLANS FOR THE EXACT LOCATION 5. BOUNDARY INFORMATION SHOWN TAKEN FROM DEEDS AND LIMITED OF TIE -IN OR EXTENSION INTO THE BUILDING. FIELD WORK. THIS IS NOT A SURVEY. 15. ALL WATER AND SE TER LINES SHALL BE INSTALLED WITH A MINIMUM COVER OF 48" TO THE TOP 6. ALL PARKING SHALL MEET ADA REQUIREMENTS. OF THE PIPE. 7. NO ATTEMPT WAS MADE TO LOCATE ANY UNDERGROUND UTILITIES. 16. ALL SEWER SERVICE. LINES SHALL BE 4' PVC SCH 40 PIPE AND PROVIDED WITH CLEAN OUT ASSEMBLIES AS RECIJIRED BY THE PLUMBING CODE.. S. THE LOCATION OF THE EX. 8" WL IS APPROXIMATE. CONTRACTOR 17• BACKFLOW PREVENTS)RS SHALL BE REDUCED PRESSURE PRINCIPLE DEVICES (RPZ) SHALL VERIFY THE LOCATION OF EX. WL. PRIOR TO CONSTRUCTION CONFORMING TO AWWA 506, AND APPROVED BY THE FOUNDATION FOR CROSS ACTIVITIES ALONG UWHARRIE RD. CONNECTION CONTRrL AND HYDRAULIC RESEARCH, USC, AND. THE CITY OF ARCHDALE. 9. SEWER AND WATER SERVICES TO THE BUILDING SHALL BE INSTALLED THE RPZ VALVES SHALL BE PROVIDED IN A HEATED, ABOVE GROUND ENCLOSURES. PER LOCAL PLUMBING CODES. SEE ARCHITECTURAL PLANS FOR 18. ALL UTILITIES SHALL. BE LOCATED UNDERGROUND. DETAILS AND EXACT LOCATIONS. PAVEMENT SCHEDULE 8" x 6" TAPPING C 0' MIN. -# SLEEVE AND -- " EI 6" RPZ FOC RISER VAL P LIGHT DUTY ASPHALT PAVEMENT' 2" S9.5A (SEE NOTE 8 ) I 8" CABO (100%) 6 X 6 TEE HEAVY DUTY ASPHALT PAVEMENT: 1.5" S9.5A 2.5" 119.0B 8" CABC (100%) 6� " HYD. ASSEM. CONCRETE PAVEMENT 7" 3500 PSI CONCRETE 4" CABC (100% (SEE REINFORCING & JOINT LAYOUT BY OTHERS) I ® POLE 1 li 101 11;0 1 8" R DOF LEADER 9i it Z o I G j� v . l II rrr �� co ARD -� LET 1 I It 7, 1 EXISTING WALL 11 i� i NEW TANIK STORAGE AREA ( APPROXIMATE LOCATION OF PERMANENT FENCE LIMITS OF PHASE 1 rr w 6' SIDEWALK CO SERVICE 'EE NOTE 9 :%.j GENERAL NOTES (APPLIES TO ALL SHEETS) i ,N 1. It shall be the General Contractor's responsibility to establish cut and fill quantities necessary to provide the final grades indicated on these plans. r GATE ACCES:; 2 -STORY Fill material not available at the site shall be provided by the General Contractor at no additional cost to the owner. Furthermore, the r G1 #10 Al General Contractor, by way of establishing a contract price for site grading, nas acknowledged that he is aware of the ' BAR DISCH. limited subsurface information and available fill material necessary to complete the work, and that his established FES 5 35' HEIGHT o <, \ contract price is sufficient to ensure the proper completion of the project c -d conditions which may affect the work, including but not <lp restricted to those bearing upon transportation, disposal, handling and storoa.e of materials; water tables or similar conditions at the site; availability of labor, water, electric power, roads, and uncertainties of weather; and the character of equipment and facilities needed J} L11 preliminary to and during proceedings of the Work. Any failure by the Contractor to acquaint himself with these facts will not relieve him , ' from responsibility for estimating properly the difficulty or cost of successf0y performing the work. The Owner assumes no responsibility for any conclusions or interpretations made by the Contractor on the basis of the information, if any, made available by the Owner. I 2. The Contractor shall be responsible for any damage to gas or water pipes, public or private sewers, drains or culverts, railroad or traffic V.2 - ' signal cables, telephone or power conduits, or other structures. When utility lines that are to be removed are encountered within the area I <l £l. y � <`i�eta! � � •�, 1 •sf < of operations, the Contractor shall notify the Owner's representative In ample time for the necessary measures to be taken to prevent . t b 4e y a^� , . � it interruption of the services. Reasonable care has been exercised in showing the location of existing utilities on the plans. The exact l F Q ,G _ •6 <,L+, location of such utilities is not known in all cases. The Contractor shall explore the area ahead of the grading operation by observations, ' C #9 electronic devices, and by personal contacts with utility companies, and loco's such utilities in advance of the trenching or grading 19 2 R -'19'� operations, and shall conduct his work so as to eliminate or minimize damage to the existing structures or utilities. FES #4 TYP TY 3. Vertical and horizontal reference points provided on these plans are intended to establish base lines for locating the principal components ' '<t � t< of the Work. From this information the Contractors shall develop and make all detailed surveys needed for construction of all types. \ '>7 LI '• DUTY Costs associated with the provision of construction lay -out shall be included in the contract price for the related work. In no case sho�N 06 7' 33" E PA RENT F • .vf \ .t • - , 'o• GOt�iC:• ' }3A►VEM�1�•T, t � `°ti1� �•. \ \ information provided on the plans relieve the Contractor from his responsibility of providing building locations and dimensions as C 223.88' I ca b < • to °, indicated on the architectural plans. The Contractor shall carefully preserve bench marks, reference points and stakes and, in case of willful t - 1951.92' H �' ,<' •.tt \ [t ' .. ', \ \\ 'tT ''i , •( <,' �i or careless destruction, shall be charged with the resulting expense and shat. be responsible for any mistake that may be caused by their =224.00') N to unnecessary loss or disturbance. (PB �00 PG 71) u o N .� •tlt t \ I•, The General Contractor shall be responsible for the provision and routine m \ maintenance of erosion control devices, either indicated or required by Divisi•un of Land Resources Personnel, necessary to comply with the 4' , Pollution Control Act of 1973 and amendments thereto. An fines resulting from the improper provision or maintenance Sedimentation Y 9 J i EX. SSMH of required devices shall be burdened by the General Contractor. � � _ i. The General Contractor shall be responsible for conformance with all current local, state, and OSHA safety codes during all phases of the 00 CL INVERT= 786.07' work. Contract prices established for the work shall include casts as soc•oted with the provision of safety equipment, and personnel necessyry K P• 1 to complete the work, including but not limited to, trench bracing, and perssnnel licensed by OSHA as competent for evaluating soil stabfli y. ' 00 z TURN DOWN2 >, installation for the sanitary sewer ties shall con: orm to City of Archdale standards. Water line tops shall cant rrri All materials and method of ns Y Y w v i \ 1 1 to Davidson Water standards. 4' \ EXISTING l t 1 " WATER i MH #T FES 1- j SERVICE TAP 20.4' T O' 1 (SEE NOTE 8) , - " C X G . VEL 1 WATER � � METER (SEE NOTE 9) \ PAVEMENT SCHEDULE 8" x 6" TAPPING C 0' MIN. -# SLEEVE AND -- " EI 6" RPZ FOC RISER VAL P LIGHT DUTY ASPHALT PAVEMENT' 2" S9.5A (SEE NOTE 8 ) I 8" CABO (100%) 6 X 6 TEE HEAVY DUTY ASPHALT PAVEMENT: 1.5" S9.5A 2.5" 119.0B 8" CABC (100%) 6� " HYD. ASSEM. CONCRETE PAVEMENT 7" 3500 PSI CONCRETE 4" CABC (100% (SEE REINFORCING & JOINT LAYOUT BY OTHERS) I ® POLE 1 li 101 11;0 1 8" R DOF LEADER 9i it Z o I G j� v . l II rrr �� co ARD -� LET 1 I It 7, 1 EXISTING WALL 11 i� i NEW TANIK STORAGE AREA ( APPROXIMATE LOCATION OF PERMANENT FENCE LIMITS OF PHASE 1 rr w 6' SIDEWALK CO SERVICE 'EE NOTE 9 :%.j PHASE 2 RIM = 811.2' OFFICE /LAB �. 2 -STORY < . 18,000 SF Al FF 817.93 1 \ (OFFICE 8,000 SF) DISCH. (LAB 4,000 SF) FES 5 35' HEIGHT o <, \ HANDICAP SIGNS EXISTING FACILITY (19,000 SF) FF= 817.93' -- I _ N 87'10'2 " 97.65) 100 PG 1) 01 SITE DATA...�....� EXISTING ZONING = M -1 D.B. 1773 -1183 F.B. 100 -71 TAX PARCEL 7708153714 SITE AREA = 5.8 Ac. +/- PARKING REQUIRED = 44 (MIN.) OFFICE= 32 (1/250 SF) WAREHOUSE (8 EMPLOYEES) = 6 (2/3 EMP.) LAB (8 EMPLOYEES) = 6 (2/3 EMP.) PARKING PROVIDED = 44 SPACES (2 HANDICAP) WATERSUPPLY WATERSHED: UWHARRIE GWA DISTURBED AREA = 4.2 Ac. +/- SOIL TYPE: WYNOTT-WILKES- POINDEXTER, MECKLENBURG AVERAGE SLOPE: 790. DISTANCE TO FLOODWAY: 600 LFf PROPOSED ISA THIS PROJECT:. 1.38 AC. ,MAXIMUM BUILDING HEIGHT: 50' 6" CO SERVICE (SEE NOTE 9) i 1 1 1 EXISTING FENCE 1 (TO BE REMOVED) 1 (T` P -) 1 1 1 1 ,ff EXISTING WALL n li E .�' (( �� EXISTING t( PARING /LOADING C j(i � AREA - -�c oil �9, EXISTING FENCE 'il (TO REMAIN) t GRA E (1 _ - I INL T G( #4 EI e POLE 220 '� r? S --- �I (- OT LINE INCL DED IN ARKI G C LINT f ' NEW PROPERTY I (-°-N 85`18' 38" W 1244,55'.(TOTAL)) (PB 100 PG 71) WAREHOUSE PHASE 2 24,063 S.F. FF 817.93 DMH# WAREHOUSE PHASE 3 24,063 S.F. FF 817.93 THIS IS NOT A SURVEY. NOT FOR RECORD, SALES, OR CONVEYANCE. n 00 Z k }x y d OF I BEFORE YOU DIG! A CALL 1- -800 -- 632 -4949 N.C. ONE --CALL CENTER IT'S THE LAW! 30' 20' 10' 0 30' 60' SCALE: 1 " 30' VECO PLAN HOLDINGS CORP. OWNER: PIN 7708163088 DB 1943, PG 1422 NOVAMELT PB 100, PG 71 C/O JIM AUGER, PRESIDENT ZONED M -1 GATE ACCESS 5608 UWHARRIE ROAD FOR SEWER ARCHDALE, NC 27263 OUTFALL (336) 434 -9541 S83.i9'± EX. SSMH ° °4` RIM = 811.2' CL INVERT= 804.6' 6" CO \ "as 1 \ °B6, °Y'eees X4044'` DISCH. FES 5 o <, \ `; � � Sid; t . •� ' • '' ^; 13 ' l <l £l. y � <`i�eta! � � •�, 1 •sf < . t b 4e y a^� , . � it l F Q ,G _ •6 <,L+, , t • K+ f • 4M 4• <t •4i .�, <f 4t 'Y� 4 Iti , \ , <. t. �'Q tt Cf `.r' �' .� u,4t<. <i ' a <• ,: z <; Ka <, t yL �.. Y V '<t � t< �:a��`' ak • ar �''�g t \ � ;ti .. 6,. °1 <: a • ,• <! `r _ _ .. <; t ��- .o t '<'' 'tea +� � rrant �° \ • t•,`` . t 'Gj[g, �, F • .vf \ .t • - , 'o• GOt�iC:• ' }3A►VEM�1�•T, t � `°ti1� �•. \ \ . <.. } s r ;� ..• ., : • � < .�� icA,VEME(`!T < • to °, � \ \ < ' ' '• 'SE�.EG.)'•: �' �,'• ` ` � :4' • �`' ; 19't' ,. '< �' ,<' •.tt \ [t ' .. ', \ \\ 'tT ''i , •( <,' �i t .e'Y r fir.' ..r . \ i• :.t .� •tlt t \ \ , [, �' '1t1'6.i)' G <, z �,. t t ��. • .. .. < EX. SSMH .t 4.' t I RIM= 797.2' " INVERT IN= 787.53' CL INVERT= 786.07' r i INVERT OUT= 785.95 BEGIN TURN DOWN 1 CURB & GUTTER TURN DOWN2 & GUTTE b 1 i \ 1 1 li #.. ll \ l t NEW PROPERTY LINE i MH #T FES 1- j O' 1 l ' X G . VEL RE :i.:t46Ft :ElF: ItVE fi 1 DETEMXON:- PONt�' 1 t l( +4� ..... .. ....._ . jl l 1 1 .... 1 DMH #2 _ 1 •--N 87'1 _0' 52" E L= 404.78 0Lf � PROPERTY (PB 100 PG 71) L 13t (PB 1 NEW FENCE IN VICINITY OF v 1 I TEMP. SEDIMENT BASIN TO t BE INSTALLED ONCE TEMPORARY SEDIMENT TRAP HAS BEEN FILLED IN v 298.7'+ ,y r----- T-- --____ - - P N 7708059304,1 1 DB 1775, PG 15$5 PB 64, ZONED M-1 -68 t i ccaew TIE FENCED ' EX. GATE i.1 °' ACCESS F SEWER OU A : vv „TrigAi i ° °4` s w cs "as °B6, °Y'eees X4044'` cv © b By Revision ' PROJECT NUMBER. 1 2012 -054 v DATE MARCH 2013 Sheet: C -1 12" "I VICINITY M" 1 " = 2000' ALUMINUM BARS 0 4" 0.( ANTI-VORTEX PLATE 42" DIA. C.A.P. TRASH RACK STAINLESS Sl SLOTS IN ANTI-VORTEX PLATES 24" C.A.P. RISER ARE USED TO POSITION THE TRASH RACK ON THE RISER PIPE -TRASH RACK DETAIL NOT TO SCALE BOUYANCY CALCULATIONS RISOR 2 (6.7') ) ?T = 21.0 FT. 3 BARREL 2 (15.01)( 12-) = 18.4 FT. = 39.4 FT. FORCE OF H2O = (39.4 FT. ) (62.4 lb./FT 3) = 2461 lb. CONCRETE = 2461 lb. = 28.1 FT 3 => (+15% FOS) - 33 CF (150-62.4) lb./FT 3 3 10, SECTION EMERGENCY SPILLWAY NOT TO SCALE 40'± TOP DAM = 801 .0 �� TOP '"'"v' 'jw' ELEV. = 799.0 CLASS I RIP-RAP W/ FILTER FABRIC PERMANENT POOL LEVEL (796.0) Gp 795.0 vG 0 C ,C)o C RP-RAP BAFFLE c; SECTION: RIP-RAP FOREBAY DETAIL NOT TO SCALE WATERSHED PROTECTION GENERAL NOTES 1. THE OWNER IS RESPONSIBLE FOR MAINTAINING THE COMPLETED PERMANENT WET DETENTION POND AS DIRECTED BY 7.-E GOVERNMENTAL OFFICE HAVING JURISDICTION FOR WATERSHED PROTE,:,'TION. 2. THE PERMANENT WET DETENTION POND SHALL HAVE FJLL DESIGN VOLUME AVAILABLE PRIOR TO ANY ISSUANCE OF CERTIFICATES OF OCCUPANCY FOR THE SITE AND/OR PRIOR TO ANY PLAT RECORDATION FOP, THE SITE. THIS MAY REQUIRE THE CLEANOUT AND DISPOSAL OF SEDIMEN71 FROM THE POND. 3. THE CONTRACTOR SHALL SCHEDULE A PRECONSTRUC70N MEETING WITH DIVISION OF LAND QUALITY WATERSHED ENGINEER WHEN THE PERMANENT WET DETENTION POND SITE HAS BEEN CLEARED AND THE POND HAS BEEN FIELD STAKED. 4. FINAL APPROVAL OF INSTALLED RUNOFF CONTROL STRUCTURES WILL BE REQUIRED AT FINALIZATION OF THE GRADING PERMIT OR AT ISSUANCE OF THE FINAL BUILDING CERTIFICATE OF OCCUPANCY (COMPLIANCE), WHICHEVER COMES LATER. ENGINEERING CERTIFICATION OF COMPLETION SHALL BE REQUIRED PRIOR TO FINAL APPROVAL BY THE ENFORCEMENT OFFICER. 5. THE GOVERNMENT OFFICE HAVING JURISDICTION FOR WATERSHED PROTECTION AND THEIR ASSIGNS HAVE RIGHT OF ACCESS TO THE PERMANENT WET DETENTION POND(S) FOR INSPECTIONS AND MAINTENANCE ENFORCEMENT. NOTE: 12' TOP WIDTH 42" TRASH RAG < C.A.P. = CORRUGATED ALUMINUM PIPE FINAL GRADE - _5" FAIRCLOTH SKIMMER W/ 4" SCHD 40 PVC BARREL 4" FINAL GRADE TOP OF DAM EL. 801.0 _ FLEXIBLE HOSE AND 4" STEEL NIPPLE _ -- 4% 3 CONNECTED TO 8" PLATE FILL - - - - - - - - - - - - - - /MATERIAL 1 EMERGENCY SPILLWAY EL. 799.0 798.98 TOP OF RISER 3 APPROXIMATE 10 YR. H. W. L. IRL? P= .7 8.1 1 EL. = 797.50 EXISTING GRADE TEMP. W.Q AGE - 6" HOLES W/ APPROXIMATE NORMAL POOL RIFICE TRASH GUARD EXISTING GRADE ml EL. = 796.0 @ EL = 796.0 7c .5 2 2�" 3 10' BENCH 4 PERMANENT WATER C.A.P. QUALITY STORAGE 10" DIA. J!RmSOR. ORIFICE PLATE PERMANENT SEDIMENT 15" C.A.P. 15" C.A.P. W/ FLANGE JOINTS AND GASKETS 15" C.A.P. S 0 S 0 AGE EL 792.0 SEDIMENT STORAGE FLANGED JOINT KEYWAY ZONE A BOTTOM EL = 791.0 8" C.A.P. STUBBED OUT OF RISER AT ELEV 792.50 WITH REMOVABLE 8" ALUM. PLATE WITH 4" THREADED HOLE TO RECEIVE THE 4!' NIPPLE 8" SHEAR GATE TO BE INSTALLED AT COMPLETION OF CONSTRUCTION WITH GASKET STRUCTURE PREF\ABRICATED BARREL TO RISER BOTTOM OM EL. L (WATERTIGHT CONNECTION) CIF CONCRETE POURED IN 790.5 BASE OF PREFABRICATED OUTLET SECTION (5'x5'x2') *ORIFICE TRASH GUARD SHALL BE 8" DIA. HALF ROUND C.A.P. 1 FOOT IN LENGTH WITH OPEN TOP AND BOTTOM WELDED/CENTERED ON INVERT OF HOLE. 7 4 '- (SEE NOTE) 1- MIN. 5.0' X 5.0' CUT-OFF COLLAR - 88 L.F. OF 15" C.A.P. @ 6.8% WET DETENTION POND TYPICAL SECTION NOT TO SCALE MAINTENANCE REQUIREMENTS DESCRIPTION FREQUENCY MAINTENANCE REQUIRED CI#5 Quarters As heeded Inspect bank embankment for erosion Quarterly Repair as needed Inspect pipe inlet and outlet areas for undercuttinqZ_erosion Quarterly- T P=811.60 Inspect trash- rack, principal and emergency spillways for trash, blockage After large storms Remove trash as necessary Inspect structural Integrity of outflow device Annualty ----T-Remove INV !N=801.40, Inspect sediment accumulation Annually when 50% of forebay capacity lost 5471 S.F. SOIL TYPE: WYNOTT-WILKES-POINDEXTER, MECKLENBURG INV/dUT=800.90 TEMP. W.Q. STORAGE REQ'D METHOD OF PROTECTION: WET DETENTION POND = 13279 C.F. 10 YEAR H.W.L. = 798.1 100 YEAR H.W.L. = 798.98 TOP OF RISER = 797.5 EMERGENCY SPILLWAY ELEV. = 799.0 TOP OF DAM 801.0 cu N ` \ 116.0' I , I � � EX. SSMH _7 RIM=797.2' 46.86 LF 18"t RC0,03.99% z INVERT IN=787.5- :2 J CL INVERT= 786.0 < INVERT OUT=785.' > 0 uj z x BOB n 4 M 5 (0 to -796 9 '`k 00, 00 -791 DMH co OD 00 1 TOPi=810.5 40 INV IN=900 30 11 IV 6,uT=799.42 -j ,j INC T RIP-RAP BAFFLE COIR BAFFLES INSTALLED DURING I Cl 4STRU TION AND MAINTA N D C'M101 JNTIL S IS STABILIZ f i 5 FAIRCLO KIMMM TO BE-,,,, 'TETHERM TO DA 794 N 796 A C�D -7-9-7 799 Jr dM. SP IlwAy, 801 SAO TOP OF DAM= 801.0 \15OB -80 06 79�9- zz_ NJ-- RIP-R _'�kPRON AP� -.,TH LENG _-8 WIDTH54'-,, .1 C3 -DEOTH-18" -S -TONE' -SIZE-- CLASS �190 30' LENGTH EXCELSIOR. LINED 'SWALE\, GRASS MAINTENANCE REQUIREMENTS DESCRIPTION FREQUENCY MAINTENANCE REQUIRED Mow maintain buffer vegetation Quarters As heeded Inspect bank embankment for erosion Quarterly Repair as needed Inspect pipe inlet and outlet areas for undercuttinqZ_erosion Quarterly- Repair as needed Inspect trash- rack, principal and emergency spillways for trash, blockage After large storms Remove trash as necessary Inspect structural Integrity of outflow device Annualty ----T-Remove Repair as needed Inspect sediment accumulation Annually when 50% of forebay capacity lost DURING CONSTRUCTION, THE POND WILL FUNCTION AS A TEMPORARY SEDIMENT BASIN FOR EROSION CONTROL. THE REMOVABLE 8" PLATE SHALL REMAIN ATTACHED AND THE FAIRCLOTH SKIMMER (OR APPROVED EQUAL) SHALL BE USED TO DECANT/DRAIN THE BASIN. UPON STABILIZATION OF 7HE SITE, ALL SEDIMENT SHALL BE REMOVED FROM THE BASIN AND THE 8" PLATE AND THE SKIMMER SHALL BE REMOVED. THE CONTRACTOR SHALL INSTALL THE 8" SHEAR GATE ON THE AFLANGE TO ALLOW FOR THE POND TO DRAIN. /' -Wit UA I A- EXISTING ZONING = M-1 D.B. 1773-1183 P.B. 100-71 TAX PARCEL 7708153714 SITE AREA = 5.8 Ac.+/- PARKING REQUIRED = 30 (MIN.) OFFICE= 34 (1/250 SF) WAREHOUSE (8 EMPLOYEES) . 6 (2/3 EMP.) PARKING PROVIDED = 44 SPACES (2 HANDICAP) WATERSUPPLY WATERSHED: UWHARRIE GWA DISTURBED AREA = 4.2 Ac.+/- SOIL TYPE: WYNOTT-WILKES-POINDEXTER, MECKLENBURG AVERAGE SLOPE: 77* DISTANCE TO FLOODWAY. 600 LF1 PROPOSED ISA THIS PROJECT. 1.38 AC. WATERSHED DATA SUNANAAR"r POND DRAINAGE AREA: 4.0 AC. WATERSHED: UWHARRIE WATERSHED 791,0 CLASSIFICATION: GENERAL WATERSHED -i PROPOSED IMPERVIOUS SURFACE 792.0 STREETS & SIDEWALKS = 0 AC BUILDINGS & DRIVEWAYS = 2.15 AC EXISTING IMP, AREA = 0.85 AC. TOTAL = 3.0 AC PROPOSED % IMPERVIOUS (DRAINAGE AREA) = 75.0% DISTURBED AREA = 4.2± AC 5471 S.F. SOIL TYPE: WYNOTT-WILKES-POINDEXTER, MECKLENBURG DISTANCE TO FLOODWAY = 600' ± TEMP. W.Q. STORAGE REQ'D METHOD OF PROTECTION: WET DETENTION POND 7� RIP-RAP APRON LENGTH = 8' WIDTH = 4' DEPTH = 18" STONE SIZE = CLASS B INV=786.0 NOTE: OWNER SHALL PROVIDE SOILS ENGINEER TO APPROVE SUBGRADE AND KEYWAY PRIOR TO ANY FILL MATERIAL BEING PLACED. ALL FILL MATERIAL AND COMPACTION WILL ALSO BE MONITORED BY SOILS ENGINEER TO BE PROVIDED BY OWNER. OWNER: NOVAMELT C/O JIM AUGER, PRESIDENT 5608 UWHARRIE ROAD ARCHDALE, NC 27263 (336) 434-9541 "NOTES: 1. ALL WORK PERFORMED WITHIN THE UWHARRIE ROAD R/W SHALL BE IN ACCORDANCE WITH NCDOT STANDARDS. 2. ALL SUB-GRADES SHALL BE APPROVED BY GEO-TECHNICAL PERSONNEL, AND PROOF ROLLED PRIOR TO PLACEMENT OF STONE BASE MATERIAL. SURFACE COARSE SHALL OVERLAP EXISTING PAVEMENT AT TIES TO PROVIDE FOR SMOOTH TRANSITION. (SEE PAVING REQUIREMENTS) 3. FINISHED ASPHALT PAVEMENT AND CONCRETE SHOULD BE COMPLETED SO THAT NO PONDING OCCURS. IF PONDING DOES OCCUR, THE OWNER HAS THE RIGHT TO REQUIRE REMOVAL AND REPLACEMENT. 4. CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING APPLICABLE UTILITY LOCATION COMPANIES TO PROVIDE UTILITY LOCATIONS PRIOR TO ANY CONSTRUCTION ACTIVITIES. 5. BOUNDARY INFORMATION SHOWN TAKEN FROM DEEDS AND LIMITED FIELD WORK. THIS IS NOT A SURVEY. 6. ALL PARKING SHALL MEET ADA REQUIREMENTS. �7. NO ATTEMPT WAS MADE TO LOCATE ANY UNDERGROUND UTILITIES. DANA DESIGN DATA SUNANAAR"r ca BOTTOM ELEV. 791,0 TOP PERMANENT -i SEDIMENT STORAGE ZONE = 792.0 SEDIMENT STORAGE REQ'D = 1815 C.F. SEDIMENT STORAGE PROVIDED = 1826 C.F. NORMAL POOL ELEV. = 796.0 NORMAL POOL DEPTH = 4.0' TEMP. W.Q. STORAGE ELEV. = 797.5 SURFACE AREA REQ'D = 5471 S.F. SURFACE AREA PRV`D = 7352 S.F. TEMP. W.Q. STORAGE REQ'D = 10527 C.F. TEMP. W.Q. STORAGE PROVIDED = 13279 C.F. 10 YEAR H.W.L. = 798.1 100 YEAR H.W.L. = 798.98 TOP OF RISER = 797.5 EMERGENCY SPILLWAY ELEV. = 799.0 TOP OF DAM 801.0 20 • 20' 4• ' MMMM" SCALE: 1 20' ENGINEER'S CERTIFICATION OF RUNOFF CONTROL I CERTIFY THAT THIS PLAN WILL CONTROL RUNOFF IN COMPLIANCE WITH THE CITY OF TRINITY STORMWATER GUIDELINES FOR WATER QUALITY AND FLOOD CONTROL, AND THAT THE RUNOFF CONTROL MEASURES SHOWN ON THIS PLAN MEET OR EXCEED THE GUIDELINES OF THE SAME STORMWATER GUIDELINES FOR WATER QUALITY AND FLOOD CONTROL CARO - '** P.E. SEAL , SEAL z SIGNATURE 27465 DATE Its Li TIN %*00 Z 0 U) C4 N cc'd lw)) Z LLLU, Z '-� a) N ED 00 R z U) to C3 00 co Z x:j,-N N (0 (0 no Ul � Z-q Lu' C; 0 z f < 4) 0 E - _j L PROJECT NUMBER 2012-054 Sheet: C -3 ca iai 2 -i L i co ---- Revision I 0 z 0 Z cu CL cu _j 0 uj z :2 0 < V ca > 0 uj z x n LLJ M 5 (0 to PROJECT NUMBER 2012-054 Sheet: C -3 iai '15 -i L i By ---- Revision I PROJECT NUMBER 2012-054 Sheet: C -3 S(! a1QW AT A � VICINITY MAP 1 " = 2000' O Al MENDEN 41 �V� Rjr Exr CONSTRUCTION SEQUENCE NOTE: THE OWNER SHALL PROVIDE FOR CONSTRUCTION INSPECTIONS AND RECORDS REQUIRED BY THE NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT. THE CONTRACTOR SHALL PROVIDE FOR DEVICE MAINTENANCE /REPAIR RECOMMENDED DURING THE NPDES PERMIT INSPECTIONS, AND PROVIDE A RAIN GAUGE AND DOCUMENT INSPECTION TUBE ON SITE. - OBTAIN GRADING PERMIT AND COPIES OF ALL APPLICABLE PERMITS FROM OTHER RE',4EWING AGENCIES. - FLAGGING OF ALL THE CONSTRUCTION /DENUDED LIMITS AND ANY OTHER BUFFERS SHALL BE PERFORMED PRIOR TO THE PRECONSTRUCTION MEETING. THE CONTRACTOR IS TO STAY WITHIN THE LIMITS OF CONSTRUCTION. ANY NEED TO CROSS THIS LIMIT LINE WILL NEED TO BE BROUGHT TO THE ATTENTION OF THE ENGINEER PRIOR TO ANY CROSS OVER. THE CLEARING LIMITS MUST BE FLAGGED FOP EACH PHASE PRIOR TO THE PRECONSTRUCTION MEETING IN ORDER TO PREVENT ACCIDENTAL ENTRY OUTSIDE THE CLEARING LIMITS. - ATTEND PRE - CONSTRUCTION MEETING ON SITE WITH THE OWNER AND WITH ALL CONTRACTORS INVOLVED WITH LAND DISTURBANCE PRIOR CONSTRUCTION ACTIVITIES FOR EACH PHASE OF CONSTRUCTION. PHASE 1 CONSTRUCTION 1. CLEAR AREAS NECESSARY FOR THE INSTALLATION OF PIPE SEGMENT FES#3 TO FES #4, AND CONSTRUCTION ENTRANCE. 2. INSTALL GI #10 TO FES #4 AND CONSTRUCTION ENTRANCE. 3. CLEAR AREAS NECESSARY FOR THE INSTALLATION OF EROSION CONTROL DEVICES TO BE INSTALLED DURING THE FIRST PHASE OF CONSTRUCTION. 4. INSTALL ALL REMAINING EROSION CONTROL DEVICES: EROSION CONTROL DEVICES AF'E TO BE INSTALLED BASED ON DETAILS PROVIDED UNDER THE APPROVEi} PLANS, THE N.C. EROSION AND SEDIMENT PLANNING AND DESIGN MANUAL, AND THE MOST CURRENT EDITION OF THE N.C.D.O.T. "BEST MANAGEMENT PRACTICES FOR CONSTRUCTION AND MAINTENANCE ACTIVITIES." ENSURE POSITIVE DRAINAGE EXISTS TO ALL DEVICES ALONG DIVERSION BERMS. TOPSOIL SHALL BE UTILIZED IN THE SLOPES TO THE EXTENT ALLOWED BY THE GEO -TECH ENGINEER OF RECORD. 5. ONCE EROSION CONTROL DEVICES HAVE BEEN INSTALLED, CLEAR ALL REMAINING AREAS FOR PHASE 1 CONSTRUCTION. 6. GRADE SITE. 7. ONCE SITE IS GRADED, INSTALL UTILITIES TO SERVICE BUILDING AND CONSTRUCT BUILDING AND PARKING LOT. 8. ALL EROSION CONTROL DEVICES ARE To REMAIN IN THE PLACE UNTIL THE SITE IS PROPERLY STABILIZED WITH GROUND COVER. ALL UPSTREAM AREAS MUST BE INITIALLY STABILIZED PRIOR TO REMOVAL OF EROSION CONTROL DEVICES. 9. INSTALL PERMANENT EROSION CONTROL DEVICES AND STABILIZE SITE. ONCE SITE IS STABILIZED, CONTACT EROSION CONTROL INSPECTOR TO AUTHORIZE THE REMOVAL OF TEMPORARY EROSION CONTROL DEVICES. PHASE 2 CONSTRUCTION NOTE: IF FILL IS TO BE INSTALLED IN THE PHASE 2 CONSTRUCTION AREA, EROSION CONTROL MEASURES SHALL BE INSTALLED PRIOR TO FILL INSTALLATION. 1. CLEAR AREAS NECESSARY FOR THE INSTALLATION OF CONSTRUCTION ENTRANCE. 2. INSTALL CONSTRUCTION ENTRANCE. 3. CLEAR AREAS NECESSARY FOR THE INSTALLATION OF SEDIMENT BASIN #1 AND THE POND. 4. INSTALL SEDIMENT BASIN #1 AND THE POND. 5. CLEAR AREAS NECESSARY FOR THE INSTALLATION OF THE REMAINING EROSION CONTROL DEVICES. 6. INSTALL ALL REMAINING EROSION CONTROL DEVICES. EROSION CONTROL DEVICES ARE TO BE INSTALLED BASED ON DETAILS PROVIDED UNDER THE APPROVED PLANS, THE N.C. E? ?SION AND SEDIMENT PLANNING AND DESIGN MANUAL, AND THE MOST CURRENT EDITION OF THE N.C.D.O.T. "BEST MANAGEMENT PRACTICES FOR CONSTRUCTION AND MAINTENANCE ACTIVITIES." ENSURE POSITIVE DRAINAGE EXISTS TO ALL DEVICES ALONG DIVERSION BERMS, TOPSOIL SHALL BE UTILIZED IN THE SLOPES TO THE EXTENT ALLOWED BY THE GEO -TECH ENGINEER OF RECORD. 6. ONCE EROSION CONTROL DEVICES HAVE BEEN INSTALLED, CLEAR ALL REMAINING AREAS FOR PHASE 2 CONSTRUCTION. 7. GRADE SITE. 8. ONCE SITE IS GRADED, INSTALL UTILITIES TO SERVICE BUILDING AND CONSTRUCT BUILDING, DRIVES, AND PARKING LOT. - - e -a• ►�a► r- e ► we a- - -� „ gal 4 • e -�a 4 e a- e • we; - • ► wa. 10. INSTALL PERMANENT EROSION CONTROL DEVICES AND STABILIZE SITE. ONCE SITE IS STABILIZED, CONTACT EROSION CONTROL INSPECTOR TO AUTHORIZE THE REMOVAL OF TEMPORARY EROSION CONTROL DEVICES. GENERAL EROSION CONTROL NOTES: 1. Groundcover will be required on all denuded areas other than perimeter dikes, swales, ditches and slopes steeper than 3:1 within fourteen (14) days) of completion of any phase of grading. (effective August 3, 2011 -DENR General Permit NCGO10000). A detailed explanation may be viewed at http://portal.ncdenr.org/web/wq/ws/su/construction. Record dates of providing groundcover. 2. Provide ground cover on all perimeter dikes, swales, ditches and slopes steeper than 3:1 within seven (7) days (effective August 3, 2011 -DENR General Permit NCG010000). It is the building contractors responsibility to ensure that property line swales have been re- established and drain to the road after sod has been installed. A detailed explanation may be viewed at http: / /portal.ncdenr.org /web /wq /ws /su /construction. Any slope indicated steeper than 3 to 1 shall be covered with excelsior matting to prevent erosion after seeding. 3. Erosion control devices are to be installed based on details provided under the approved plans. The plans and details are based on the NC Erosion and Sediment Planning and Design Manual, and recognized Best Management Practices (BMP's). 4. Under the Development Ordinance of the City of High Point, Section 9 -8 -2 (b) (1) and (2), the Enforcement Officer is it tl /r 6., E,✓ ..__.__. __' _.._.__. .__._._.. '._._. .._.._ HOLDINGS CORP. /, ,,.. - ___ _i20TECTiON ^P.HASE_._�_.LIMM_ - OF - __.___ _........... ' -- _.__. VE 0 PLAN HOLDI GI #I;0 : , �' PHASE_ 2 7708163088 ` PAVEMENT - ___...._ - -_ -. 25' X 100`. _____ _. DB 193, 71 2 CONSTRUCTION `PONECO, PG . ONED - ENTRANCE (SEE Z M,, DETAIL) - `­­ Al , 100' X 25 TEMP. Ci2 r i I• , ____ I CONSTRUCTION �" n-r l '�, 4 % 1 , ; . / 563.9 f ; ! X. SSM �; ENTRANCE Cfl .�': t:, ; • ; '' < •< ' t•'`_ � � °< <, '.' '`' :�'•' �. ''''z` ,• ,; <'. :<, �'� <` � f : <' C. �� '.' ' `. � ? L INVERT -806' ` (SEE DETAIL) +-+ : i I' . ` sa s. <.. 4 •< <, �J i ' . �3 ..Y , .' `� , 5:' `• ffi \ \ l., •< S 8a' :i '' �. <..- , 1' d b7" E' •i . <• .•, „.. < e� ��q,,,at �' •�l:• F i c %f' •,.., ;Y ..� :,... �• ; <, !'q�.. �,. •� <u .• ; 'io2. �� ,• <,` :< . • : '../�• 2� '•,, � '•• •i• ::. " '�• ;: w , mix � .,p 980' TEMP . FES #4 FLS# LENGTH WIDTH =4' 0 , CI #9 ' ' / _ . "' -- --.. �' 64.7$ STONE DEPTH =12" ' \ STONE SIZE =CLASS B FES# t i p O� j 1 STORM DRAINA`G TO OFr %' _. \ \ \ . BE INSTALLED ti N LS J __- - \ IST[RBAjVCE ! PHASE 2 (SE CONSTRUCTIO ;• I + /(PHASE SEQUENCE m• (� ! PHASE 11 OFFICE /JAB i t i t l /' \ �`•� 2 STORY T FENCE W STONE 1 i r 12,000 OF f OUTLETS ar i ' °^ l.j`:;' FF 817.93 ` 11P OUSE N� 21ZEE 2 (SEE DETAIL) �� • I i '�. 1 ( t ,063 9.F. ;' ~ k'F:t81193. � \ '' w l l I, i N EXISTING { _.._ j CO PAVE} 1, 20 it t i , \ i Qi ILI _150 Cd Ln CO I , i i i t { � t i � { ; I j l ! � ' / t 1 \_ \ \ \ \ � � \\ \ ` h`1 \ i $0g .,,,..,••.'y ` t t - r t '\ i POLE i , , ' k 10 • t 1 1 ) W I�/��(TSE 4 tP i FF�81�f.93 t I E)USTIN = f ( FACII' •;;, . j '; I i \ \`. ` 1 �- \ \ j (19,000 S.) L FF= 817.93° I :ARID NLET I• '•iI I .4 i \, `i i l \ \� t I •1 t , `t \ 812 E li I }n` 1 l 1 \ \ \' ' �r C ff sob' 804 f , g02 TEMO..-DIWIR 5ION /, 798 196 ✓ _ - -: y6 �BEK - INLET PROfE! CTIO - \\ ,1 EXISTING _ (TY.} r, PARI(TNG /LOA7-a3G , / LTMiTS p ► AREA _ ' ` ': Z_ f, - 7g0 DISTURBANC�,`.7' f ' r ,� r 1-1-L t (Pi3lfSE 2) I , ^0) Cb GRATE : _ _ - Ii 1 , OQ'' DFKK, LLC INL T! - - - y _. = �� J '` DB 1775$ PG 155 L =- 14 I �. ��� f= °''� _ = PB 64, PG 68 I - EIP I- _ t ZONED M -1 I a POLE I required to periodically inspect the sites of land- disturbing 7. As of March 10, 2003, all construction sites one (1) acre or acre to inspect their project after completing each phase of the SEDIMENT BASIN TABLE activities and conduct investigations of such sites for violations more, ,requires a NPDES Permit. Project, and document the inspection in writing.. A detailed SEDMENT TRAP #2 W /SILT FENCE BAFFLES of ordinance. No person(s) shall refuse entry or access to any Theref're' explanation may be viewed at North Carolina D =, rtment of authorized representative or agent of the city who requests entry C (DISTURBED AREA) Environment and Natural Resources (DENR), Div':Bion of Land 0.80 for purposes of inspection and who presents appropriate - en documentation of a deviation from approved plan must Web -site at credentials, nor shoal an person obstruct, hamper, or interfere y R P be noted on the approved plans. be fittp: / /www.dir.enr.state.nc.us /pages /sediments on_new.htm {. TOTAL AREA with any such representative while in the process of carrying out - Written documentation of an emergency situation where 9. As of August 3, 2011, revisions were made ': j the North 0.98 ac his official duties. 5. The contractor shall maintain close contact with the erosion sec:,rnent has been discharged off site must be recorded. Also, Contractor's actions to repair and return area to prestorm Carolina Division of Water Quality (DWQ) Construction General control inspector. Additional erosion control measures may be cox Rion must be recorded. Permit (NCGQ1) with emphasis on Ground Stabis Cation, Building 13.92 cfs required by the erosion control inspector to correct an emergency situation where sediments are being discharge off the The tee shall inspect ❑II erosion and sedimentation Waste Handling, Inspections, Conditions in the Erosion and Sedimentation Control Plans and Sediment Basir• s. A detailed V =1800 x DIST. AREA site. It is the ermittee's responsibility to maintain erosion P P Y control facilities every seven days and within re 24 hours of n .5 olfa inet of rain. Findings shall be recorded and presented upon explanation may be viewed at REQUIRES SURFACE AREA onsite, regardless of the measures required. insp-actor's request. htt ortai.ncdenr.or web w ws su eonstrucction. P. //P 9/ / q/ / / 1978 sf 6. Deviation from the approved E &SC Plan, or approved - The contractor shall provide rain - recording device and record 10. Retention Ponds and Bio- retention Cells mc-y be used until amendment shall constitute a violation of the terms and eac: - rainfall. the end of all grading phases and construction of 10130 cf conditions of the general permit except that deviation from the _ An g^ failures that cause visible sedimentation to leave the houses /buildings for collection of sediment. If retention ponds approved pan will be allowed: app -aved disturbed limits shall be corrected immediately and and bio- retention cells are used for erosion coE ^roi measures, AVERAGE AREA - to correct an emergency situation where sediments are being cl= ;- nented. then the structure shall be cleaned of collected sediment prior 1508 sf dischar ed off site or - A c^oy of the NPDES Permit should be kept on site for to certification by engineer. L= Q(10)/(3 *h".5) where h = 0.5' 9 - when minor modifications have been made that result in an refe�7ence. alteration or relocation of an erosion or sedimentation control measure and does not affect the ability of the measure to 8. A new Self - inspection Program for all land- disturbing perform as intended. activities larger than one (1) acre became effective October 1, Allowed deviations must be noted on the approved E&SC Plan 2010 os per GS 113A- 54.1(e). This General Statue directs all and maintained at the job site. persons conducting land- disturbing activities larger than one (1) :4e 4 Sol rIJ� r r � c� 30' 20' 10' 0 30' 60' SCALE: 1 " = 30' D FES#5,PLUNGE POOL (SEE DETAIL) I TEMPORARY 'A SEDIMENT TRAP #2 W/ SILT FENCE BAFFLE, S (PHASE 1) 32'x64'x3' l i TEM i 0IVE61ON i , ERM t; \ 10,;1;.) ! ;t 4 ( i \ 1LBOTS OF ! \ -D SWRBANCE t { I > EX. SSMH i 1 `•, RIM= 797.2' FES #2 r INVERT IN- - 787.53' LENGTH 16' ' CL INVERT = 786.07' WIDTH = r \ INVERT OUT= 785.95' / STONE DE 11.1 44 `. it STONE SIZ ;CLA S,1 °rn l i d I LAN TH =12' r = H =4.5' STO E DEPTH =24" I ( "J, IZOWIVE SIZE =CLASS 1 ! r r i i'1 r / / \Cp r , _T lc� ----- _ .._. .._ ___ PPND DISCHARGE (LENGTH 7 s WIDI•{'i�4' ...... ;'- STONE- 'DEPTH =18„ \ STONE SIZE =CLASS B J ' \\ i\ r ' ou r' 00 r I � r r LEGEND WIM INLET PROTECTION L. J DEVICE - ° - EXISTING CONTOUR CATCH BASIN OR DROP INLET PROPOSED CONTOUR: STORM DRAIN W/ FLARED END SECTION s•ae ®u: LIMITS OF DISTURBED AREA TEMP. SEDIMENT BASIN _- o--a -- SILT FENCE W/ BERM DITCH 00, 1.11, :Q:rn C3 w • •' 0 Li �p G71 � L Z N N co to Z 00 W W Z X :j W QUJ F z g- H W a a o t3 W a W i CL ¢ w Z 9 © o H U 114 c TEMPORARY BASIN W /SILT FENCE BAFFLES SEDMENT TRAP #2 W /SILT FENCE BAFFLES C (UNDISTURBED AREA) 0.40 0.40 C (DISTURBED AREA) N 0.80 0.80 I -10 5.8 in /hr 5.8 in /hr TOTAL AREA 3.10 ac 0.98 ac DISTURBED AREA 2.90 ac 0.98 ac Q(10) Q =CIA 13.92 cfs Q =CIA 4.55 cfs REQUIRED VOLUME V =1800 x DIST. AREA 5220 cf V =3600 x DA 3528 cf REQUIRES SURFACE AREA SA =325 *(Q10) 4524 sf SA =435* Q 1 1978 sf DEPTH CL 3 ft 3 ft VOLUME PROVIDED 10130 cf UJ 6144 cf SURFACE AREA PROVIDED 6111 sf 2048 sf AVERAGE AREA 5065 sf � 1508 sf WEIR LENGTH REQUIRED (Q10) L= Q(10)A3 *h^.5) where h = 0.5' 14 ft L= Q(10)/(3 *h".5) where h = 0.5' 5 ft SKIMMER -- SIZE (ORIFICE) 1 1 3" 1 NA :4e 4 Sol rIJ� r r � c� 30' 20' 10' 0 30' 60' SCALE: 1 " = 30' D FES#5,PLUNGE POOL (SEE DETAIL) I TEMPORARY 'A SEDIMENT TRAP #2 W/ SILT FENCE BAFFLE, S (PHASE 1) 32'x64'x3' l i TEM i 0IVE61ON i , ERM t; \ 10,;1;.) ! ;t 4 ( i \ 1LBOTS OF ! \ -D SWRBANCE t { I > EX. SSMH i 1 `•, RIM= 797.2' FES #2 r INVERT IN- - 787.53' LENGTH 16' ' CL INVERT = 786.07' WIDTH = r \ INVERT OUT= 785.95' / STONE DE 11.1 44 `. it STONE SIZ ;CLA S,1 °rn l i d I LAN TH =12' r = H =4.5' STO E DEPTH =24" I ( "J, IZOWIVE SIZE =CLASS 1 ! r r i i'1 r / / \Cp r , _T lc� ----- _ .._. .._ ___ PPND DISCHARGE (LENGTH 7 s WIDI•{'i�4' ...... ;'- STONE- 'DEPTH =18„ \ STONE SIZE =CLASS B J ' \\ i\ r ' ou r' 00 r I � r r LEGEND WIM INLET PROTECTION L. J DEVICE - ° - EXISTING CONTOUR CATCH BASIN OR DROP INLET PROPOSED CONTOUR: STORM DRAIN W/ FLARED END SECTION s•ae ®u: LIMITS OF DISTURBED AREA TEMP. SEDIMENT BASIN _- o--a -- SILT FENCE W/ BERM DITCH 00, 1.11, :Q:rn C3 w • •' 0 Li �p G71 � L Z N N co to Z 00 W W Z X :j W QUJ F z g- H W a a o t3 W a W i CL ¢ w Z 9 © o H U 114 c Nt 0 �E ~ By Revision RG 1--PER DLQ RG 2--PER DOT PROJECT NUMBER 2012 -054 DATE MARCH 2013 Sheet: C-4 cc .l N O O t? CL Z ca .4..J CL _J O�y++ UJ 0 � �� yy \..J W 00 0 L0 LLJ Nt 0 �E ~ By Revision RG 1--PER DLQ RG 2--PER DOT PROJECT NUMBER 2012 -054 DATE MARCH 2013 Sheet: C-4 EXCELSIOR MATTING (STANDARD AND HIGH VELOCITY) BERM /SWALE 1. APPLY LIME, FERTILIZER AND SEED BEFORE LAYING THE NET OR MAT. IF OPEN -WEAVE NETTING IS USED, LIWE MAY BE INCORPORATED 1. REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH, STUMPS AND OTHER OBJECTIONAL MATERIAL. BEFORE INSTALLING THE NET AND FERTILIZER AND SEED SPRAYED ON AFTERWARD. CURB INLET 2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS ALL DESIGN REQUIREMENTS. 2. START LAYING THE NET FROM THE TOP OF THE CHANNEL OR SLOPE AND UNROLL IT DOWN THE GRADE AL NETTING TO LAY LOOSELY U IN ON THE SOIL BUT WITHOUT WRINKLES -DO NOT STRETCH. 3. ENSURE THAT THE TOP OF THE DIKE IS NOT LOWER AT ANY POINT THAN THE DESIGN ELEVATION PLUS 3. TO SECURE THE NET, BURY THE UPSLOPE END IN A SLOT OR TRENCH NO LESS THAN 6 INCHES DEEP, COVER WITH SOIL AND TAMP FIRMLY. THE SPECIFIED SETTLEMENT. 2.0' MIN. 8.0' STAPLE THE NET EVERY 12 INCHES ACROSS THE TOP END AND EVERY 3 FEET AROUND THE EDGES AND BOTTOM. WHERE 2 STRIPS OF NET ARE 4. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE REGRADING AND CLEANOUT. LAID SIDE BY SIDE, THE ADJACENT EDGES SHOULD BE OVERLAPPED 3 INCHES AND STAPLED TOGETHER. EAC STRIP OF NETTING SHOULD ALSO MAINTENANCE S. VEGETATE THE RIDGE IMMEDIATELY AFTER CONSTRUCTION, UNLESS IT WILL REMAIN IN PLACE LESS BE STAPLED DOWN THE CENTER, EVERY 3 FEET. DO NOT STRETCH THE NET WHEN APPLYING STAPLES. THAN 30 WORKING DAYS. 4. TO JOIN TWO STRIPS, CUT A TRENCH TO ANCHOR THE END OF THE NEW NET. OVERLAP END OF THE PREVrJSS ROLL 18 INCHES, AND STAPLE INSPECT THE BARRIER AFTER EACH RAIN EVERY 12 INCHES JUST BELOW THE ANCHOR SLOT. CONCRETEI BLOCK I AND MAKE REPAIRS AS NEEDED. REMOVE MAINTENANCE MAINTENANCE SEDIMENT AS NECESSARY TO PROVIDE INSPECT ALL MATTING PERIODICALLY, AND AFTER RAINSTORMS TO CHECK FOR FILL EROSION, DISLOCATION. CHR FAILURE, WHERE EROSION IS ADEQUATE STORAGE VOLUME FOR INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER EVERY RAINVALL. IMMEDIATELY REMOVE r' z OBSERVED, APPLY ADDITIONAL MATTING. IF WASHOUT OCCURS, REPAIR THE SLOPE GRADE, RESEED AND REP STALL MATTING. CONTINUE INSPECTIONS SUBSEQUENT RAINS, WHEN THE �2:1 SLOPE CONTRlBUT[NG DRAINAGE AREA HAS BEEN SfDIMEhl7 FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE. CAREFULLY CHECK OUTLETS AND OR FLATTER UNTIL VEGETATION IS FIRMLY ESTABLISHED. GRAVE FILTE ADEQUATELY STABILIZED, REMOVE ALL MAKE TIMELY REPAIRS AS NEEDED. WHEN THE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE o a t MATERIALS AND ANY UNSTABLE SOIL. AND THE RIDGE AND THE CHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY C ANCHOR NETTING IN 6" TR NCH EITHER SALVAGE OR DISPOSE OF PROPERLY. STABILIZE I7. BRING THE DISTURBED AREA TO PROPER O O 2:1 SLOPE WIRE SCREEN GRADE, THEN SMOOTH AND COMPACT IT. �� � CLASS I RIP -RAP oo � OR FLATTER STABILIZE ALL DISTURBED AREAS. NOTE: �� /� �/� TO BE PROVIDED �� o g BEFORE YOU DIG! 01 ` WHERE INDICATED CALL 1 -800 -- 632 --4949 STEEPER GRADES ALONG BERM MAY REQUIRE VEGETATIVE OR ;� /% ON PLANS 1$" OVERLAP OVERFLOW CURB :-;INLET MECHANICAL STABILIZATION. EXCAVATED MATERIAL SHOULD BE N.C. ONE -CALL CENTER JOIN STRIPS BY ANCHORING PLACED AND COMPACTED ON LOWER SIDE OF DIVERSION AND IT'S THE LAW! AND OVERLAPPING RUNOFF WATER TYPICAL BERM CROSS SECTION FILTERED . •• � SEEDED AS SOON AS POSSIBLE. TEMPORARY BERMS AND /OR WITH SEDIMENT b WATER DIVERSIONS SHOULD BE SIZED TO HANDLE A 10 -YEAR STORM. NOT TO SCALE ± * >` 3.P •° • 0'R, \� \ \� \ \��� : + BERMS WITH A DRAINAGE AREA OVER 5 ACRES SHOULD BE `•O •'p -.. w V e° •° • e /` \ / / \ //\ :\f r i CALCULATED INDIVIDUALLY. CONSTRUCTION SPECIFICATIONS : 4 "Q�. 4' EX ^.ELSIOR MATTING 8' EXCELSIOR MATTING WIRE SCREEN 5-APLE PATERN STAPLE PATERN 2 °X4° STUD FOOT GRID 1 FOOT GRID ;, 1. CLEAR THE AREA: OF ALL DEBRIS THAT MIGHT HINDER EXCAVATION AND DISPOSAL OF SPOIL. 2. INSTALL THE CLASS B OR CLASS I RIP -RAP IN A SEMI - CIRCLE AROUND THE PIPE INLET. THE Q" : ~` NTS NTS WIDTH =4 STONE SHOULD BE BUILT UP HIGHER ON EACH END WHERE IT TIES INTO THE EMBANKMENT. THE Z. S' • ; BLOCK AND GRAVEL CURB INLET SEDIMENT FILTER RIP -RAP PLUNGE POOL „ CLASS GRIP -RAP MINIMUM CREST WIDTH OF THE RIP -RAP SHOULD BE 3 FEET, WITH A MINIMUM BOTTOM WIDTH ;Y° ••" °• ,.° �4.` NOT TO SCALE MP. 18 RCP TEMP 0 R A R Y SEEDING OF 11 FEET. THE MINIMUM HEIGHT SHOULD BE 2 FEET, BUT ALSO 1 FOOT LOWER THAN THE SHOULDER g .• 8't BOTTO 2'± OF THE EMBANKMENT OR DIVERSIONS. 1. LAY ONE BLOCK ON EACH SIDE OF THE STRUCTURE ON ITS SIDE IN THE BOTTOM ROW TO ALLOW POOL DRAINAGE. THE FOUNDATION SHOULD BE DEFINITION 3. A 1 FOOT THICK LAYER OF NCDOT #5 OR #57 STONE SHOULD BE PLACED ON THE OUTSIDE ° °°,ysr �� e� ♦e` EXCAVATED AT LEAST 2 INCHES BELOW THE CREST OF THE STORM DRAIN. PLACE THE 807'OM ROW OF BLOCKS AGAINST THE EDGE OF THE STORM LENGTH OF THE RiP -RA.=' IN CHANNELq ROLL OUT STRIPS OF NETTING PARALLEL TO THE DRAIN FOR LATERAL SUPPORT AND TO AVOID WASHOUTS WHEN OVERFLOW OCCURS. IF NEEDED, GIVE LATERAL SUPPORT TO SUBSEQUENT ROWS BY •, " m SEEDING DISTURBED AREAS WITH ANNUAL GRASSES OR LEGUMES TO PROVIDE TEMPORARY 4 THE SEDIMENT STORAGE AREA SHOULD BE EXCAVATED AROUND THE OUTSIDE OF THE STONE DIRECTION CF? FLOW AND OVER THE PROTECTIVE MULCH PLACING 2 x 4 WOOD STUDS THROUGH BLOCK OPENINGS. 15 � GROUND COVER TO LESSEN SOIL EROSION. 2 CAREFULLY. FIT HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH 1/2" OPENINGS OVEN'. ALL BLOCK OPENINGS TO HOLD GRAVEL IN PLACE. o u HORSESHOE O IBUTI BELOW NATURAL GRADE. STAPLES MV BE INSTALLED IN A 'DIAMOND PATTERN' NO MORE 3. USE CLEAN GRAVEL, 3/4 - 1/2 INCH IN DIAMETER, PLACID 2 INCHES BELOW THE 70P H I THE BLOCK ON A 2:1 SLOPE OR FLATTER AND SMOOTH 5. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, FILL DEPRESSION AND THAN 3 FEE" APART. TO ASSURE PROPER ANCHORING OF IT TO AN EVEN GRADE DOT #57 WASHED STONE IS RECOMMENDED. 1$" FILTER BLANKET PURPOSE ESTABLISH FINAL GRADING ELEVATIONS, COMPACT AREA PROPERLY, AND STABILIZE WITH 4. IF ONLY STONE AND GRAVEL ARE USED, KEEP THE SLOPE TOWARD THE INLET NO STEEPS"*.: THAN 3:1. LEAVE THE MINIMUM 1 FT. WIDE LEVEL STONE INV. OUT GROUND COVER. EXCELSIOR WATTING. AREA BETWEEN THE STRUCTURE AND AROUND THE INLET 70 PREVENT GRAVEL FROM ENIM,'ING INLET. ON THE SLOPE AWAY FROM THE INLET, USE TO TEMPORARILY STABILIZE GRADED CUT AND FILL SLOPES THAT CANNOT BE SEEDED WITH 1/2 - 3/4 INCH GRAVEL (NCDOT #57 WASHED STONE) AT A MINIMUM THICKNESS of 1 FT . RIP-RAP PAD BELOW TEMP #rJ PERMANENT VEGETATION WITHIN THIRTY DAYS AFTER COMPLETION. SILT FENCE NOT TO SCALE TO TEMPORARILY STABILIZE GRADED AREAS OF BARE SOIL WHERE PERMANENT VEGETATIVE �� z 1. CONSTRUCT THE SEDIMENT BARRIER OF STANDARD STRENGTH OR EXTRA STRENGTH SYNTHETIC FILTER FABRICS. COVER IS NOT NEEDED OR WHERE GRADING HAS NOT BEEN COMPLETED AND PERMANENT �� RIP-RAP HEADWALL I.4 2. ENSURE THAT THE HEIGHT OF THE SEDIMENT FENCE DOES NOT EXCEED 18 INCHES ABOVE THE GROUND SURFACE. (HIGHER FENCES MAY SEEDING WILL BE DONE LATER. NATURAL GROUND EXCELSIOR MATTING DETAIL IMPOUND VOLUMES OF WATER SUFFICIENT TO CAUSE FAILURE OF THE STRUCTURES. do 3. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TOAVOID JOINTS. WHEN JOINTS ARE CONDITIONS WHERE PRACTICE APPLIES °n 0' o' NOT TO SCALE 00 NECESSARY, SECURELY FASTEN THE FILTER CLOTH ONLY AT A SUPPORT POST W17H OVERLAP TO THE NEXT POST RIP -RAP APRON ENERGY DISSIPATOR 4. SUPPORT STANDARD STRENGTH FILTER FABRIC BY WIRE MESH FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY WHERE BARE SOIL HAS BEEN EXPOSED BY GRADING, AND VEGETATIVE COVER IS NEEDED °0 ° r,y DUTY WIRE STAPLES AT LEAST 1 INCH LONG, OR TIE WIRES. EXTEND THE WIRE MESH SUPPORT TO THE BOTTOM OF THE TRENCH. FOR ONE YEAR OR LESS. MAY INCLUDE SUCH AREAS AS TEMPORARY SEDIMENT POND, W LV � FOR STORMWATER OUTLET PROTECTION 5. WHEN A WIRE MESH SUPPORT FENCE IS USED, SPACE POSTS A MAXIMUM OF 8 FT. APART. SUPPORT POSTS SHOULD BE DRIVEN DIVERSIONS, SOIL STOCKPILES, BUILDING PADS, ROUGH- GRADED ROAD BANKS, ETC. IT CLASS BRIP -A_4� W H 00 1n O SECURELY INTO THE GROUND TO A MINIMUM OF 18 INCHES. W O A A 6. EXTRA STRENGTH FILTER FABRIC WITH A 6 FT. POST SPACING DOES NOT REQUIRE WIRE MESH SUPPORT FENCE. STAPLE OR WIRE THE IS ALSO USED TO PROVIDE A TEMPORARY PERIMETER BUFFER. po FLOW �'3 Z w � Lr) t7 0 FABRIC DIRECTLY TO POSTS. Ft '' - "''I -"0i° z b � tp OU A Q . A RIP -RAP OUTLET OR PLUNGE POOL 7. EXCAVATE A TRENCH APPROXIMATELY 4 INCHES WIDE AND 8 INCHES DEEP ALONG THE PROPOSED LINE OF POSTS AND UPSLOPE FROM PREPARATION z (n +� t 5 to a s�eacK E TRENCH WITH COMPACTED SOIL oR GRAVEL PLACED OVER THE FILTER FABRIC. PREPARE SEEDBED BY RIPPING, CHISELING, HARROWING, TO A DEPTH OF AT W W z xX, Z a CD M IN O 1. ENSURE THAT THE SUBGRADE FOR THE FILTER AND RIP -RAP 9. DO NOT ATTACH FILTER FABRIC TO EXISTING TREES. LEAST SIX INCHES SO AS TO PRODUCE A LOOSE, FRIABLE SURFACE. INCORPORATE PIPE INVERT W < M � M I O FOLLOWS THE REQUIRED LINES AND GRADES SHOWN IN THE PLAP4,., 750 -1,000 POUNDS 10 -10 -10 FERTILIZER AND UP TO TWO TONS OF DOLOMITIC LIME PER O 36' PIPE MAX, z `-' COMPACT ANY FILL REQUIRED IN THE SUBGRADE TO THE DENSIT'' OF METAL FENCE POST () t•-1 'z• THE SURROUNDING UNDISTURBED MATERIAL LOW AREAS IN THE ACRE (NOTE: LIME MAY NOT BE NEEDED IF A SOIL INDICATED A pH OF 6.5 OR o ,--� C3 OO L1 $°0 0 PLAN SUBGRADE ON UNDISTURBED SOIL MAY ALSO BE FILLED BY HIGHER). MULCHING IS REQUIRED ACCORDING TO THE SAME SPECIFICATIONS AS FOR z E"+ r, n- W o ry o Oo0 INCREASING THE RIP -RAP THICKNESS, NOTES: HOG WIRE (OPTIONAL) PERMANENT SEEDING UNLESS WAIVED BY SOIL SCIENTIST. SELECT SEEDING MIXTURE AND FILTER BERM W 2 C- 1. TOTAL DRAINAGE AREA FLOWING TO 3 NCDOT #5 OR #57 d N PLAN C 0 La 2. THE RIP -RAP AND GRAVEL FILTER MUST CONFORM TO THE SILT FENCE MAY NOT EXCEED 2 ACRES. BEST PLANTING DATES FROM TABLE 12. o WASHED STONE v SPECIFIED GRADING LIMITS ON THE PLANS. IN DRAINAGE AREAS OVER 1 ACRE THE Q 3. FILTER CLOTH, WHEN USED, MUST MEET DESIGN REQUIREMENT.:• SILT FENCE SHOULD HAVE A STORAGE PIT. �- EROSION CONTROL FABRIC TABLE 12 ~ L, d AND BE PROPERLY PROTECTED FROM PUNCHING OR TEARING DUIs,`aNG NATURAL GROUND.! TEMPORARY SEEDINGS � INSTALLATION. REAPIR ANY DAMAGES BY REMOVING THE RIP - RAE' -" 2. SILT FENCES SHOULD NOT BE USED AT RIP-RAP HEADWALL -/� AND PLACING ANOTHER PIECE OF FILTER CLOTH OVER THE DAMA" aED o FILL SLOPE SEDIMENT STORAGE V MIN. HEIGHT FROM U GEOTEXTiLE uNDERLINER PIPE OUTLETS OR IN AREAS OF i SEEDING MIXTURES SEEDING RATES (LB /ACRE) PLANTING DATES <p ZONE SECTION A -A AREA: ALL CONNECTING JOINTS SHOULD OVERLAP A MINIMUM OF' 1 !v ROAD SHOULDER p PIPE OUTLET TO WELL - DEFINED CHANNELFT, IF THE DAMAGE IS EXTENSIVE, REPLACE THE ENTIRE FILTER CONCENTRATED FLOW (CREEKS, DITCHLINES, fl 7EXTILE UNDER \� RYE GRAIN AND 120 LBS. JAN. 1 - MAY 1 J 4 i CLOTH. SWALES, ETC.) / o ND \\/ KOBE LESPEDEZA 50 LBS. 4. RIP -RAP MAY BE PLACED BY EQUIPMENT, BUT TAKE CARE TO AVOID DAMAGING THE FILTER. NO. 4 WASHED STONE �� ' / /�/ GERMAN MILLET OR 40 -50 LBS. MAY 1 -AUG. 15 5. THE MINIMUM THICKNESS OF THE RIP -RAP SHOULD BE 1.5 TIOMES THE MAXIMUM STONE DIAMETER. �� \�' SECTION A -A NOTES 6. RIP -RAP MAY BE FIELD STONE OR ROUGH QUARRY STONE. I7 SHOULD BE HAR, ANGULAR, HIGHLY WEATHER � SUDAN GRASS PIPE OUTLET TO FLAT AREA RESISTANT AND WELL GRADED. QOa$oo° //X RYE (GRAIN) 120 LBS. AUG. 15 - DEC. 30 WITH NO DEFINED CHANNEL 1. APRON LTN1�3� MAY BE RIPRAP, 7. CONSTRUCT THE APRON ON ZERO GRADE WITH NO OVERFALL AT THE END. MAKE THE 70P OF THE RIP -RAP p:! 0 °o \ /� \/ (MAY SUBSTITUTE OATS GROUTED RIPRAP OR CONCRETE AT THE DOWNSTREAM END LEVEL WITH THE RECEIVING AREA OR SLIGHTLY BELOW I7. , , �°i$�nQ- ������� BEFORE OCT. 1 OR WHEAT FLOOD STORAGE ZONE NCDOT #5 DR #57 2. L IS THE LENGTH OF THE B. ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH THE RCEIVING STREAM AND PREFERABLY STRAIGHT ��/ $�b°+d, � WASHED STONE L, THROUGHOUT ITS LENGTH. IF A CURVE IS NEEDED TO FIT SITE CONDITIONS, PLACE IT IN THE UPPER i o pDO°go FROM OCT. 1-NOV. 15) MAX, SEDINI NT DEPTH RIPRAP APRON. SECTION OF THE APRON. �` $`6°0 °o EARTH ANNUAL RYEGRASS 40 LBS. AUG. 15 - NOV. 30 3. d = 1.5 TIMES THE MAXIMUM STONE 9. IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL DISTURBED AREAS WITH VEGETATION. WEEPING LOVEGRASSi 5 LBS. MAY 1 - AUG. 15 .� DIAMETER B`L'" NOT LESS THAN 6 ". S, T F -14CE c PLAN VIEW 1 &LCRCiSS SECTION 4. DIMENSIONS AND SPECIFICATIONS MAI NANCE Ili- I NTS U MUST BE DES�_'RMINED BY INSPECT RIP -RAP OUTLET STRUCTURES AFTER HEAVY RAINS TO SEE IF ANY EROSION AROUND OR BELOW iv D SiGNPMET Cp GINEERING REPAIRS TO PREVENT FURTHER DAMAGE STONES HAVE BEEN DISLODGED. IMMEDIATELY MAKE ALL NEEDED ll illll I l III Ii9 n I1 it 1 1111 II /I SILT FENCE DETAIL 1 WEEEPING LOVEGRASS IS A PERENNIAL GRASS BUT IS INCLUDED HERE BECAUSE OF 0 pIIIIIIIII NOT TO SCALE SEDIMENT PIT ff °-` FLOW ITS ADAPTABILITY TO POOR SOIL CONDITIONS AND DROUGHTY SITES. 1J2" 7 /8" via. HOLES z DEFINITION: GRAVELED AREA TO BE LOCATED AT POINTS WHERE VEHICLES ENTER AND LEAVE A CONSTRUCTION SITE. ss'DWG 4 1 2" PURPOSE: TO PROVIDE A BUFFER AREA WHERE VEHICLES CAN DROP THEIR MUD AND SEDIMENT TO AVOID TRANSPORTING IT ONTO PUBLIC P ROADS, TO CONTRO'_ EROSION FROM SURFACE RUNOFF, AND TO HELP CONTROL DUST. 2' CONDITIONS: TO BE USED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND MOVING DIRECTLY ONTO A PUBLIC ROAD OR o�' o POST l` 5" OTHER PAVED OFF -SITE AREA. CONSTRUCTION PLANS SHOULD LIMIT TRAFFIC TO PROPERLY CONSTRUCTED ENTRANCES. 4" f }. .I 2 1 f2" 4E- #4 CBIANRGS DESIGN -END VIEW Q4 O CRITERIA: AGGREGATE SIZE - USE 2 -3 INCH WASHED STONE, WITH GEO -TEX LINER NOTE: CONCRETE: , 40 PSI AT 28 DAYS MAX 2b pp CCHTROM FABRICS TO BE 110 FEET HOG WIRE WITH APPROVED EROSION 7` -0" DIMENSIONS OF GRAVEL PAD - THICKNESS = 8 INCHES MINIMUM slLr FENCE SLIT FENCE STRUCTURAL STONE SHALL BE J�v� �Q$ WIDTH 25 FOOT MINIMUM OF FULL WIDTH AT ALL POINTS OF THE VEHICULAR ENTRANCE MAXIMUM PLACEMENT OF POST WITHOUT HOG WIRE USING APPROVED EROSION CLASS "B ") STONE FOR EROSION 1/2'- 1--z 1�, -2-� 1 2" 0� AND EXIT AREA, WHICHEVER IS GREATER COWIROL FABRICS TO BE 6 FEET TO 8 FEET APART FLOW `� CONTROL PURPOSES. Q ppOC JpO LENGTH 100 FOOT MINIMUM WITH GEO -TEX LINER Pu` j METAL T -POST 5 FEET OR 6 FEET IN HEIGHT DEPENDING ON FILL opo00 °o0o LOCATION = LOCATE CONSTRUCTION ENTRANCES AND EXITS TO LIMIT SEDIMENT FROM SLOPE. �, 5• �' oopo °o °o °OO LEAVING THE SITE AND TO PROVIDE FOR MAXIMUM UTILITY BY ALL FAIRtc 36 INCHES IN WIDTH (MUST MEET ENGINEERS SPECIFICATIONS SEDIMENT CONTROL STONE SHALL 00 00 0oa 0�b FOR EROSION CONTROL). BE NO. 5 OR NO. 57 STONE. a° op � 00 cam° o CONSTRUCTION VEHICLES. AVOID STEEP GRADES AND ENTRANCES AT CURVES IN STONE No. 4 WASHED STONE TO BE PLACED 12 INCHES DEEP AT SILT DETAIL. LU p p C, o° 0 $o °g$o o ° °o PUBLIC ROADS. FENCE. SILT FENCE 000 00 0 °0 -00 C> o °O CONCRETE BUMPER BLOCK LU opo° ooao Gb °cf�oo�ap° SITE CONDITIONS MAY REQUIRE VARIATIONS FROM THESE DESIGN CRITERIA. VARIATIONS WILL BE DETERMINED OR APPROVED TOP VIEW G1 �1� O° °!fO °$O O OOq 0 O T r POST NOT TO SCALE %T_00 °goo000 C,0 00 0 0 000 00° BY EITHER THE APPROPRIATE CITY OR STATE EROSION CONTROL AUTHORITY. t ppp 00 0K-- o oo��a o 0 °�00 7N 4s,d opop0$a °CO �° °o $° a oo ° 0 00 00 0 01boo 00°%0gp� °° °�00 0 Q0$ S° MAINTENANCE 12" of #5 OR #57 SILT FENCE ® v g 0 T°pOOpO6�„o00p0o 00(3r INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL MAKE ANY REQUIRED REPAIRS IMMi=DIA1ELY. STONE ON FACE SILT FENCE SILT FENCE .. e> 0168 X008 °° o�Q °g °o °° PERMANENT SEEDING 0q$ 0 0 200 0oao0 SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR ABECOME INEFFECTIVE, REPLACE IT PRaAPILY. REPLACE 12" MIN Sr" MIN. °° 00 boa O - 0� BURLAP EVERY 60 DAYS. DEFINITION ED C, OCROg0 °0 0 0 -086, o00 _0 C, SEEDING DISTURBED AREAS WITH PERENNIAL GRASSES AND (OR) LEGUMES TO PROVIDE A ° UJ 00 bg 0 bopoo i, alp0 4-00 REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO R,wDUCE PRESSURE ON THE 1' -6" MiN. PERMANENT VEGETATIVE COVER TO LESSEN RUNOFF AND SOIL EROSION. o$0o ^o`�apo °00o S0 °toga v 0 0° 0 o FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. ?.T o$po oQ OpOa$� a $ fzx, o °c oq C- 0 REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE ARE TO GRADE AND STABILIZE ! "T AFTER THE 1 2. PURPOSE COARSE AGGREGATE ° o °° �� °0000 000 °b °ao° CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED. 1 0 o TO LESSEN SOIL EROSION AND PERMANENTLY STABILIZE DISTURBED AREAS CREATED BY °r4ao �c9��ooa° aCoo0 4 °° t-® R 12" MIN' GRADING OF CONSTRllC ION SITES. GEO -TEX LINER °0 06 (9 0 10 i%o to CONDITIONS WHERE PRACTICE APPLIES LO q b 0 Z O 00-0 STRUCTURAL ALL BARE SOIL AREAS ON CONSTRUCTION SITES WHICH ARE NOT COVERED BY STRUCTURES 0 G1 1 0 FLOOD CERTIFICATIfail`,I STONE 0 °0 ry CROSS SECTION OR OTHER EROSION CONTROL DEVICES. �o The undersigned hereby certifies to the .best o -his knowledge and PREPARATION TEMPORARY CONSTRUCTION ENTRANCE belief the location of the subject property has :been checked against DETAIL I� . area HUD/FIA maps and information provided r y the Department of PREPARE SEEDBED BY SPREADING 3 - 6 INCHES OF TOPSOIL OVER AREA TO BE SEEDED. Housing and Urban Development and finds that:: SILT FENCE WITH STONE OUTLET DETAIL REMOVE ALL STONES, BOULDERS, STUMPS OR DEBRIS FROM THE SURFACE WHICH WOULD The subject property is located in a SPECIAL FLOOD FRONT VIEW PROHIBIT GERMINATION OR PLANT GROWTH. NOT TO SCALE ( ) HAZARD AREA as determined by HUG/FIA flood map. INCORPORATE INTO THE SOIL 800 TO 1,000 POUNDS OF 10 -10 -10 FERTILIZER PLUS 500 � The subject property is not located f.17 a. SPECIAL FLOOD NOT TO SCALE POUNDS OF TWENTY PERCENT (20 %) SUPERPHOSPHATE PER ACRE AND TWO TONS OF HAZARD AREA as determined by HUD'•/'FIA flood map. BAFFLE DOLOMITIC LIME PER ACRE UNLESS SOIL TESTS INDICATE THAT A LOWER RATE OF LIME ( p`� CAN BE USED. The subject property is located in or... area which has F�- MULCH AFTER SEEDING 'FRITH 1.5 TONS OF GRAIN STRAW PER ACRE AND EITHER CRIMP'++ SEDIMENT BASIN W/ SKIMMER OUTLET ( ) not been mapped as to flood areas °by HUD/FIA. EARTH BER 1. DRIVE 5' STEEL FENCE POST AT LEAST 24" INTO SOLID GROUND STRAW INTO SOIL OR TACK WITH LIQUID ASPHALT AT 400 GALLONS PER ACRE OR � f AND EMERGENCY SPILLWAY EMULSIFIED ASPHALT A7 300 GALLONS PER ACRE. 2. USE STAPLES 1' APART TO ATTACH FABRIC SELECT SEEDING MIXTURE AND BEST PLANTING DATES FROM TABLE 13. NTS TO "Hoc WIRE" O °3 CONSTRUCTION SPECIFICATIONS 3. BAFFLE SPACED AS PER APPROVED PLAN TOP OF BAFFLE SHOULD BE 6 O .x " T^ r s„ ; : ' 1 BELOW THE TOP OF THE BERM TABLE 13 r 1. CLEAR, GRUB AND STRIP THE AREA UNDER THE EMBANKMENT OF ALL VEGETATION AND ROOT MAT. REMOVE ALL SURFACE SOIL CONTAIVIING HIGH AMOUNTS °ate OF ORGANIC MATTER AND STOCKPILE OR DEPOSE OF IT PROPERLY. HAUL ALL OBJECTIONABLE MATERIAL TO THE DESIGNATED DISPOSAL. AREA, PLACE PERMANENT SEEDINGS ' .,C . -• r•at' :S'•: 'i •'' EMBANKMENT TEMPORARY SEDIMENT CONTROL MEASURES BELOW BASIN AS NEEDED. V'�j BAFFLE SHALL BE A s; p.• ,='"• �:.:�'{ l ',,. ' ,: .r '.d �: 2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT IS FREE OF ROOTS. WOODY VEGETATION, ORGANIC MATTER, AND OTHER OBJECTION NO-LE MATERIAL. PLACE '9•I' MINIMUM OF 700 G /SM r: S sp PLANTS & MIXTURE PLANTING RATE /ACRE PLANTING DATES By • :L,� +�:;1 +•t'+` *:;'sF'• '• - r , ,:r'.! '.r ;;:=,i THE FILL IN LIFTS NOT TO EXCEED 9 ", AND MACHINE COMPACT IT. OVER FILL THE EMBANKMENT 6" TO ALLOW FOR SETTLEMENT. qC COIR MATTING - ' °,:r 3. SHAPE THE BASIN TO THE SPECIFIED DIMENSIONS. PREVENT THE SKIMMING DEVICE FROM SETTLING INTO THE MUD BY EXCAVATING A ;HALLOW PIT UNDER FBF - +��� '••a••^ IN A W SUPPORT UNDER THE SKIMMER OF STONE OR TIMBER. TALL FESCUE 100 -150 LBS. AUG. 15 OCT. OTT 15 .F 4 i • - THE SKIMMER OR PROVIDING LO SU D ; " ..f: - " a, ` 4. PLACE THE BARREL (TYPICALLY 4-INCH SCHEDULE d0 PVC PIPE) ON A FIRM, SMOOTH FOUNDATION OF IMPERVIOUS SOIL DO NOT USE. PERVIOUS MATERIAL INLET ZONE Fry Z. ,o (LOW MAINTENANCE; FEB. 15 -MAY 1 ' ' ` ' ,$ SUCH AS SAND, GRAVEL OR CRUSHED STONE AS BACKFILL AROUND THE PiPE. PLACE THE FILL MATERIAL AROUND THE PIPE SPILLWAY• 11N 4-INCH LAYERS OST v , , • «; -. ^- %r • ` �,, > :. ? , x .; , AND COMPACT IT UNDER AND AROUND THE PiPE TO AT LEAST THE SAME DENSITY AS THE ADJACENT EMBANKMENT. CARE MUST BE TAV,'EN NOT TO RAISE THE s %•T "'` '` ? �" •r °` = ;sc: ^.� PIPE FROM THE FIRM CONTACT WITH ITS FOUNDATION WHEN COMPACTING UNDER THE PIPE HAUNCHES. FIRST CHAMBER BAFFLE INSTALLATION - STEP M TALL FESCUE 200 -250 LBS. AUG. 15 -OTT. 15 ' �- '•.t`a•i` .;'!.c�t ; �� ^.'"' :i:i`.', "�•,:t ''r. •'' ��'' `•• PLACE A MINIMUM DEPTH OF 2 FEET OF COMPACTED BACKFILL OVER THE PIPE SPILLWAY BEFORE CROSSING IT WITH CONSTRUCTION EQI!IPMENT. IN NO CASE SEDFMfN7 PtT WATERWAYS AND FEB. 15 -MAY 1 w i' l .•r: v �•. fu,.. Y. .w d.•'ti.•:� r �'a °° ��•;' =•a•• " ° „%'s "•a -'�� :•,;'_ ."'� ••s'.''K.IIt�F,.RR'" ° EMERGENCY SHOULD THE PIPE CONDUit BE [NSiALLED BY CUTTING A TRENCH THROUGH THE DAM AFTER THE EMBANKMENT IS COMPLETE. `t' a• z °> "' "p';•= • "+, 5. ASSEMBLE THE SKIMMER FOLLOWING THE MANUFACTURERS INSTRUCTIONS, OR AS DESIGNED. FENCE AND FABRIC LAWNS (NIGH MAIN .) INFLOW STRUCTURE ? : ?';,< ,.�: x; . '_',•.r : a;: �, =. ;:.-!�!`C' SPILLWAY 6. LAY THE ASSEMBLED SKIMMER ON THE BOTTOM OF THE BASIN WITH THE FLEXIBLE JOING AT THE INLET OF THE BARREL PIPE ATTACH 'THEE FLEXIBLE JOINT BURIED IN TRENC r ,�i10E • P. 3 SECOND CHAMBER BLEND OF TWO TURF- 200 -250 LBS. AUG. 15 - OCT. 15 - o TO THE BARREL PIPE AND POSITION THE SKIMMER OVER THE EXCAVATED PIT OR SUPPORT. BE SURE TO ATTACH A ROPE TO THE SKIIWWER AND ANCHOR IT v Y ;, tz; }* ;; •••;• ;, TO THE SIDE OF THE BASIN. THIS WILL BE USED 70 PULL THE SKIMMER TO THE SIDE FO MAINTENANCE, TYPE TALL FESCUE= FEB. 15 - MAY 1 7. EARTHEN SPILLWAYS- INSTALL THE SPILLWAY iN UNDISTURBED SOIL TO THE GRFATES EXTENT POSSIBLE. THE ACHIEVEMENT OF PLAMMIED ELEVATIONS. GRADE, j CLASS #1 RIP R DESIGN WIDTH AND ENTRANCE AND EXIT CHANNEL SLOPES ARE CRITICAL TO THE SUCESSFULL OPERATION OF THE SPILLWAY. THE SPIL `WAY SHOULD BE. LINED (90 %) AND TWO OR WITH LAMINATED PLASTIC OR IMPERMEABLE GEOTEXTILE FABRIC. THE GABRIC MUST BE WIDE AND LONG ENOUGH TO COVER THE BOTTOW AND SIDES AND OUTLET ZONE 6 "x6" TRENCH, MORE IMPROVED EXTEND ONTO THE TOP OF THE DAM FOR ANCHORING IN A TRENCH, THE EDGES MAY BE SECURED WITH 8 -INCH STAPLES OR PINS -1E FABRIC MUST BE BACKFILL.ED AND cv LONG ENOUGH TO EXTEND DOWN THE SLOPE AND EXIT ONTO STABLE GROUND.D THE WIDTH OF THE FABRIC MUST BE ONE PIECE, NOT 40INED OR SPLICED; KENTUCKY BLUEGRASS BAFFLES OTHERWISE WATER CAN ET UNDER THE FABRIC. IF THE LENGTH OF THE FABRIC IS INSUFFICIENT FOR THE ENTIRE LENGTH OF THE SPILL4.WAY, MULTIPLE COMPACTED EMBANKMENT SECTIONS. SPANNING THE COMPLETE WiDTH, MAY BE USED. THE UPER SECTION(S) SHOULD OVERLAP THE LOWER SECTION(S) SO THAT `VATER CANNOT FLOW 6 "HOG WIRE TH LE VARIETIES (107) TO POSTS WITH LE GTH5 HIGH MAINTENANCE) PLAN VIEW UNDER THE FABRIC, SECURE THE UPPER EDGE AND SIDES OF THE FABRIC IN A TRENCH WITH STAPLES OR -PINS. (HIGH OF WIRE 4 1' FREEBOARD 8. INLETS- DISCHARGE WATER INTO THE BASIN IN A MANNER TO PREVENT EROSION. USE TEMPORARY SLOPE DRAINS OR DIVERSIONS WIT; >t OUTLET PROTECTION HORIZONTAL METAL POST TO DiVERT SEDIMENT -LADEN WATER TO THE UPPER END OF THE POOL AREA. TO IMPROVE BASIN TRAP EFFICIENTY. WIRED SECURELY TO VERTICAL TALL FESCUE 100 LBS. FEB. 15 -MAY i INFLOW STRUCTURE fi" MIN. INVERT ELEVATION 9• EROSION CONTROL- CONSTRUCT THE STRUCTURE SO THAT THE DISTURBED AREA iS MINIMIZED. DIVERT SURFACE WATER AWAY FROM BARE AREAS. COMPLETE PERSPECTIVE VIEW THE EMBANKMENT BEFORE THE AREA IS CLEARED. STABILIZE THE EMERGENCY SPILLWAY EMBANKMENT AND ALL OTHER DISTURBED ARA ;S ABOVE THE CREST C POSTS STEP AND AUG. 15 -OTT. 15 BAFFLES OF EMERGENCY SPILLWAY I� OF THE PRINCIPAL SPILLWAY IMMEDIATELY AFTER CONSTRUCTION. BAFFLE INSTALLATION - STEP 1 106. DWG WG KOBE OR KOREAN 20 -25 LBS. 10. IN POROUS BAFFLES. LESPEDEZA \Vd 11. AFTER ALL THE SEDIMENT - PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE THE STRUCTURE AND ALL THE UNSTABLE SEDIMENT. SMOOTH THE AREA TO BLEND WITH THE ADJOINING AREAS AND STABILIZE PROPERLY. TALL FESCUE AND 50 LBS. SERICEA LESPEDEZA, 60 LBS. NOV. 1 - FEB. 1 PROJECT (�E ;•��:p`;4'ti' { -�~ ° ?; ;,.. fi MAINTENANCE 1/4" WIRE MESH (UNSCARIFIEfJ} TALL FESCUE AND 60 LBS. JULY AND AUGUST 20'12` -054 _'' I F:.•y INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENT AND R'' ='AIR IMMEDIATELY. 2' GERMAN MILLET OR REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIFINAL DIMENSiONS WHEN SEDIMENT ACCUMULATES TO 1/2 THE HEIGHT OF THE ,RST BAFFLE. PULL THE YARD INLET PROTECTION SUDANGRASS2 AND SKIMMER TO ONE SIDE SO THAT THE SEDIMENT UNDERNEATH IT CAN BE EXCAVATED. ESCAVATE THE SEDIMENT FROM THE ENTIRE BASID,, NOT JUST AROUND , ... '• !• 30 LBS. SEDIMENT STORAGE ZONE THE SKIMMER OR THE FIRST CELL MAKE SURE VEGETATION GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD DOWN THE MIAMIER. A A NOT TO SCALE TALL FESCUE 70 LBS. NOV, 1 -JAN. 30 DATE FILTER FABRIC REPAIR THE BAFFLES IF THEY ARE DAMAGED. RE- ANCHOR THE BAFFLES IF WAITER iS FLOWING UNDERNEATH OR AROUND THEM. r AND AND CROSS IF THE SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY JERKING ON THE ROPE WILL MAKE THE SKIMIMER 808 UP AND DOWN RYEGRASS2 25 LBS. MARCH 2 ®�{. AND DISLODGE THE DEBRIS AND RESTORE FLOW. IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE SIDE OF THE BASIN AND 'rIEMOVE THE DEBRIS. ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT 1S CLOGGED, IF SO, REMOVE THE DEBRIS, 12" NOTE SEDIMENT _CONTROL STONE COMMON BERMUDAGRAv $LBS. (HULLED) APRIL 15 -JUNE 30 IF THE SKIMMER ARM OR BARREL PIPE iS CLOGGED, THE ORIFICE CAN BE REMOVED AND THE OBSTRUCTION CLEARED WITHA PLUMBER'S SNAKE OR BY f i � SMALL BE No. 5 OR 57 15 -20 LBS. (UNHULLED} FEB. 1 -MARCH 30 Sheet- FLUSHING WITH WATER. BE SURE AND REPLACE THE ORIFICE BEFORE REPOSITIONING THE SKIMMER, / �/, // . ��, ` i .// . /��/ WIRE MESH SHALL BE HARDWARE r/ CLOTH 23 GAGE MIN. AND SHALL 1 -6" CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRED REPAIRS WITH FABRIC THAT SPANS THE FULL WiDTH OF TIM SPILLWAY. CHECK •� SEDIMENT CONTROL STONE HAVE 1/4 INCH MESH OPENINGS. FOR SPRING SEEDING», USE SCARIFIED LESPEDEZA SEED. FOR LATE FALL AND THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE. AND INSPECT THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAK'�: ALL NECESSARY TOP OF WIRE MESH SHALL BE A WINTER SEEDINGS US- - UNSCARIFIED SEED. REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE SKIMMER AND POOL AREAS. ri MINIMUM OF ONE FOOT BELOW THE 2 -"-" FREEZING WEATHER CAN RESULT IN ICE FORMING IN THE BASIN. SOME SPECIAL PRECAUTIONS SHOULD BE TAKEN IN THE WINTER TO P;stEVENT THE SKIMMER I q' -8" I SHOULDER OR ANY DIVERISION POINT. ANNUALS SUCH AS MILLET, SUDANGRASS AND RYEGRAiN MUST BE KEPT AT i0 -12" FROM PLUGGING WiTH ICE. i �) - MAXIMUM HEIGHT.