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HomeMy WebLinkAboutNCG140380_COMPLETE FILE - HISTORICAL_20081212STORMWATER DIVISION CODING SHEET NCG PERMITS PERMIT NO. IV 0,& I q D W ) DOC TYPE HISTORICAL FILE ❑ MONITORING REPORTS DOC DATE ❑° b U(� I� I A YYYYMMDD i r 1 Y December 12, 2008 Mr. Doug K. Sutton 3801 Black Creek Road Wilson, NC 27893 DEC15 2008 til!l'I 11i1'g 4 rl(itltl�f Dear Mr. Sutton: Michael P. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleco IC Sullins, Director Division of Water Quality Subject: General Permit No. NCG 140000 S.T. Wooten Corporation — Plant #20 COC No. NCG140380 Wayne County In accordance with your application for a discharge permit received on April 16, 2008, subsequent additional information received in August and October of this year, and final revised plans and calculations received November 14, 2008, we are forwarding herewith the subject certificate of coverage (COC) to discharge under the subject state — NPDES general permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the US Environmental Protection Agency ated October 15, 2007 (or_as-subsequently_amended)._.-._._—._— Please take notice that this certificate of coverage is not transferable_ except after notice to the Division of Water Quality. The Division of Water Quality may require modification or revocation and reissuance of the certificate of coverage. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area Management Act or any other federal or local governmental permit that may be required. An Authorization to Construct (ATC) treatment facilities has been issued concurrently with this CDC. The Washington Regional Office, telephone number (252) 946- 6481, shall be notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. Upon completion of construction and prior to operation of this pennitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with the NPDES Permit, the associated Authorization to Construct, and the approved plans and specifications. Please mail the certification (attached) to the Stormwater Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617. I 0 `hCarolma Xrturnt/il North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 807-6300 Customer Service Internet: www.ncwaterouality ore Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 807-6494 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer— 50%Recycled/l0%Post Consumer Paper Mr. Doug K. Sutton 1 S.T. Wooten Corporation — Goldsboro Plant s NCG140380 December 12, 2008 Please note that any future construction, installation, or modification of wastewater treatment facilities (including process wastewater recycle systems) will require an Authorization to Construct (ATC) prior to construction per 15A NCAC 2H .0138 & .0139. You must submit, in triplicate, plans/specifications and design calculations, stamped and sealed by a professional engineer, with a letter requesting an ATC to the Stormwater Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617.] One (1) set of approved plans and specifications is being forwarded to you. The Permittee shall maintain a copy of the approved plans and specifications on file for the life of the facility. If you have any questions concerning this permit or Authorization to Construct please contact Bethany Georgoulias at telephone number (919) 807-6372 (please note change in phone number). Sincerely, e d for Coleen H. Sullins cc: Washington Regional Office R. S. (Butch) Lawler, Jr. Jon Meade/ Bartlett Engineering & Surveying, PC/ 1906 Nash Street North/ Wilson, North Carolina 27893-1726 C6itidl-Files - - - - Stormwater Permitting Unit Files enclosure _ Mr. Doug K. Sutton S.T. Wooten Corporation — Goldsboro Plant NCG140380 December 12, 2008 Engineer's Certification (COC No. NCG140380) 1, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, Project Name Location for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the following installations: Construction of a process wastewater recycle system at the S.T. Wooten Corporation — Goldsboro (Plant #20) site. 1 certify that the construction of the above referenced project was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Date Mail this Certification to: Registration No. Stormwater Permitting Unit NC Division of Water. Quality 1617 Mail Service Center Raleigh, NC 27699-1617 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY y.. GENERAL PERMIT NO. NCG140000 CERTIFICATE OF COVERAGE No. NCG140380 STORMWATER AND PROCESS WASTEWATER DISCHARGES NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, S.T. Wooten Corporation is hereby authorized to operate a process wastewater treatment (recycle) system, and is hereby authorized to discharge process wastewater and stormwater from a facility located at -- S.T. Wooten-Corporation—P-lant-#20 _ ..--------------- ----- ---- —2000 U-.S.Highway70-West-------------------- Goldsboro Wayne County to receiving waters designated as The Canal to Little River, a class C; NSW water, in the Neuse River Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, IV, V, and VI of General Permit No. NCG140000 as attached. This certificate of coverage shall become effective December 12, 2008. This Certificate of Coverage shall remain in effect for the duration of the General Permit. Signed this day December 12, 2008 for Coleen H. Sullins, Director Division of Water Quality By the Authority of the Envirommental Management Commission 0 a O 0 J S.T. Wooten Coporation - Goldsboro Concrete Plant #20 q^•y f'" mEr J� v*a\''ir ( \ �S� D BM] � ••�oe � jSl l(r(�tJ'(�/��>\ � t � -.� 5. NCG140380 S.T. Wooten Corporation - Goldsboro Concrete Plant #20 �N �y �t� Latitude: 350 24' 47" N E Longitude: 780 1' 49" W County: Wayne S Receiving Stream: The Canal Stream Class: C - NSW Map Scale 1:24,000 Sub -basin: 03-04-06 (Neuse River Basin) Facility Location BAWLETT ENGINEERING & SURVEYING, PC 1906 Nash Street North Wilson, NC 27893-1726 Phone: (252) 399-0704 Five (252) 399-0804 jon@battlettmg.com November 11, 2008 Raleigh Regional Office Department of Environment and Natural Resources Stormwater and General Permits Unit 1617 Mail Service Center Raleigh, NC 27699-1617 REFERENCE: S.T. WOOTEN CORPORATION-GOLDSBORO CONCRETE PLANT Ms. Georgoubas: Bartlett Engineering and Surveying on behalf of S.T. Wooten Corporation (STW), presents the additional information request for the NCG 140380 NOI application. The proposed concrete plant is anticipated to produce approximately 200CY of concrete per day and have 6-7 trucks used for load out. Delve, will be used to stabilize the mixture in the drums between loads and overnight It is assumed on a worst case condition that a maximum of half the trucks will wash out drums on a daily basis (4 trucks with drum wash out daily) with 0.25CY of concrete washed out per truck. In order to keep the recycle basin as small as possible and still meet effluent conditions, drainage areas to the basin were reconfigured to provide for containment of areas of high concern (mainly washout and stockpile areas) while bypassing "clean" stormwater runoff areas. The additional information is discussed below. • The volume below the weir elevation of 99.5' was corrected on the first page of calculations from 19,642cf to 26,280cf after verifying volumes. • Additional spot grades and flow direction arrows added to grading plan. Previously addressed information dated October 15, 2008. • The C value for the stockpile area was increased from 0.7 to 0.9. • The weir length should have been 20ft on the old plans. Revised calculations show the weir length to be 75ft. This weir length will be provided at the end of an additional chamber. • The fines from the pH and control going to the first earthen basin make a loop for continuous pH adjustment. The pump and recycle line will be placed in the 2NN earthen basin to provide for water re -use. • The operating capacity of the plant will be approximately 200CY/day. The 0.51b/CY of cement off of each truck is based on what is washed off of the outside of the trucks. There will be 6-7 trucks used daily. Delvo stabilizer will be used in the drums between loads and overnight. It is assumed that on a worst case basis, approximately one-half (4 for calculations) of the trucks would wash out drums on a daily basis. Stoke's Law Calculation: Calculations were redone using the %< represented as a percent mass and not a percent number. This required us to add an additional chamber to the recycle system and a weir length of 75ft for the last chamber to predict compliance with TSS concentrations. The TSS calculation was changed to represent the mass of cement that would discharge over the weir for the 25yr intensity with 6 minute time of concentration / volume of water below the discharge weir elevation of 99.5'. The volume of water in the concrete chamber portion was not included in the total volume to allow for settled particulates. Also, the predicted TSS calculation would be under the TSS of 30mg/l if only 87.2% of the basin volume below 99.5' contour was available. We appreciate your assistance with this matter. If you have any questions or need additional information, please contact our office. Thank you. Sincerely, Robert S. Bartlett, P.E. SEAL 20106 S.T. WOOTEN-GOLDSBORO CONCRETE PLANT RECYCLE WASH -WATER BASIN CALCULATE PEAK FLOW FOR SITE (25YR PEAK FLOW -NOT 24HR STORM EVENT) Qp=CIA Op = peak rate of runoff in cubic feet per second (cfs) C= coefficient of runoff 1=intensity of rainfall in inches per hour A=drainage area in acres Coefficient of runoff; C Rainfall Intensity; I Drainage Area; A Tc Peak Runoff; Qp Runoff Volume (25yr storm 6min duration) 0.76 8.64 inches/hour 2.96 acres 6 min 19.44 cfs 0.161 acre feet 6997 cu ft CALCULATE PROCESS WASTEWATER FLOW AT SITE Average work day = 10 hours Wash water produced = 5 gal/CY Anticipated plant production = 200 CY/day Wash water per day = 1000 gallon 1 gallon = 0.133681 cf Wash water per day = 133.7 cf DETERMINE BASIN SIZE Total Volume of basin (96.0'-101.0')(cf) 41,212 Volume at weir elevation (99.5') (cf) 26,820 Average Dimensions of the Surface of the Basin Length(ft) 200 Width(fl) 45 Avg. Surface Area of the Basin w/ Chamber 9265 sq ft (99.5 countour) Weir Length (ft) 75 ft CALCULATE DEPTH OF FLOW OVER THE DISCHARGE WEIR By: Robert S. Bartlett, P.E. Bartlett Engineering and Surveying, PC Wilson, NC 27893 252-399-0704 25 year storm w/Tc=6min (see Hydrograph) H=[Q/(3.1-L)I-0.66667 NOTE: BASIN NOT DESIGNED TO HOLD THE 25YR-24HR STORM EVENT H=Depth of flow over weir in (ft) FOR 25YR PEAK FLOW, DISCHARGE DEPTH OVER WEIR-0.2FT Q=flow in cfs L=Length of weir (ft) Normal Operation (no rain) Qn= 0.004 cfs Hn= 0.001 ft During Rain Event Qp= 19.44 cfs Hp= 0.191 ft CALCULATE CRITICAL VELOCITY OF PARTICLES IN POND DURING PEAK FLOW Vc=Qp/A Vc=critical velocity in ft/sec Qp=peak flow A=average surface area of pond at overflow Critical Velocity (Vc)= 0.002098219 fUsec Retention time of particle (Rp) during peak flow --Average Pond Length at SurfaceNc= Retention time(Rp) 95318.9 seconds Critical settling velocity (Vc') for particle to settle to weir (rain)=Hp/Rp Critical settling velocity (Vc') 2.00601E-06 ft/sec DETERMINE WHICH SOLIDS WILL DISCHARGE OVER WEIR Focus will be on cement particles which are the least likely to settle and therefore the most likely to discharge due to their small size . Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc'>Vp, then those solids will discharge over the weir. Formula for calculating particle settling velocity (Vp) Particle settling velocity (fUsec), Vp={2g(p1-p2)rA2)/(9u) Stokes Law g=gravity = 32.2 d=diameter of cement particle(ft) _ 1 micron = 3.28084E-06 ft pl=density of cement = 94 Ib/cf p2=density of water = 62.4 Ib/cf u=viscosity of water = 0.0005981 lb/ft-sec Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Particle Size Distribution of Portland Cement; Phase II Particle Discharge Diameter size distribution %< diameter (ft) Settling Velocity Critical Settling Over Weir (microns) Vp (ft/sec) Velocity; Vc (ft/sec) (Y/N) 1 4.7 4.7 3.28084E-06 1.01734E-06 2.00601E-06 Y 1.5 2.6 7.3 4.92126E-06 2.28902E-06 2.00601E-06 N 2 4.8 12.1 6.56168E-06 4.06937E-06 2.00601E-06 N 3 5.6 17.7 9.84252E-06 9.15607E-06 2.00601E-06 N 4 4.6 22.3 1.31234E-05 1.62776E-05 2.00601E-06 N 6 7.6 29.9 0.000019685 3.66241E-05 2.00601E-06 N 8 6 35.9 2.62467E-05 6.51098E-05 2.00601E-06 N 12 10.5 46.4 3.93701E-05 0.000146497 2.00601E-06 N 16 8.2 54.6 5.24934E-05 0.000260439 2.00601E-06 N 24 13.8 68.4 7.87402E-05 0.000585989 2.00601E-06 N 32 10.3 78.7 0.000104987 0.00104176 2.00601E-06 N 48 12.4 91.1 0.00015748 0.002343945 2.00601 E-06 N 64 5.2 96.3 0.000209974 0.00416704 2.00601E-06 N 96 2.8 99.1 0.000314961 0.00937584 2.00601E-06 N 128 0.4 99.5 0.000419948 0.016668161 2.00601E-06 N >128 0.5 100 - 2.00601E-06 N Based on these calculations, particles less than 1.5 microns will discharge over the weir. Estimated amount of cement washed off each truck 0.5 Ib/CY Mass of cement washed off trucks 100 lb/day Mass of cement from drum washout 500 lb/day (See assumptions next page) There will be 6-7 trucks used per day. Delvo will be used in drums between loads and also overnite most of the time. Assume worst case half of trucks used (4) will wash drums out each day. Assume 0.25 CY of concrete will be washed out during drum washout. (500lbs of cement per CY or concrete) Mass of cement to discharge=Mass of cement washed off trucks each day x % of mass= 43.8 Ibs/day 19885200 mg/day Total Suspended Solids of Discharge (TSS)=Mass of cement (mg)/Volume of Basin below full pool (99.5') (liters) TSS= 19885200 / 759458liters Volume below weir (99.5') 26820 cu. ft. Anticipated Max.TSS (mg/I) 26.183 mg/I Max. TSS (mg/1) 30 mg/I Note: Volume of concrete basin not considered in these calculations and predicted TSS will be under 30mg/I with approximately 12.8% of the basin volume or 3420 cu.ft. taken up by settled solids. Basin would need to be cleaned out when bottom elevation reads-95.8'. CALCULATE SETTLEABLE SOLIDS DISCHARGE Methodology for settleable solids measures the volume of settleable solids in an Imhoff cone after 60 minutes. An Imhoff cone is approximately 14-inches tall. Results are reported in ml/L. The following table calculates the time for particles to settle 1", 6", and 14". Diameter Settling Velocity 1" Settling 6" Settling 14" Settling (microns) (ft/sec) Time (min) Time (min) Time (min) 1 1.01734E-06 1365.21 8191.28 19113 1.5 2.28902E-06 606.76 3640.57 8494.67 2 4.06937E-06 341.3 2047.82 4778.25 3 9.15607E-06 151.69 910.14 2123.67 4 1.62776E-05 85.33 511.96 1194.56 6 3.66241E-05 37.92 227.54 530.92 From calculations above, particles 2 microns and smaller will take longer than 60 minutes to settle only 6". Anticipated Settleable Solids= 0 ml/I Max. Allowable Settleable Solids 5 ml/L BASIN VOLUMES INCREMENTAL TOTAL STORAGE STORAGE STAGE (FT) ELEVATION (CU FT) (CU FT) 0 95 0 0 1 96.0 4,088 4,088 2 97.0 5,072 9,160 3 98.0 6,152 15,312 3.5 99.0 7,315 22,627 4 99.5 4,193 26,820 5 100.0 4,484 31,304 COMMENTS 6 101.0 9,908 41,212 NOTE:The recycle basin is designed to provide adequate settling to meet effluent concentrations for the 25yr intensity with pH adjustment and not designed to hold the 25yr 24hr storm event. Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil M 2008 by Autodesk, Inc. v6.052 Tuesday, Oct 14, 2008 Hyd. No. 1 Goldsboro Recycle Basin Hydrograph type = Rational Peak discharge = 19.44 cfs Storm frequency = 25 yrs Time to -peak = 6 min Time interval = 1 min Hyd. volume = 6,997 cuft Drainage area = 2.960 ac Runoff coeff. = 0.76 Intensity = 8.640 in/hr Tc by User = 6.00 min OF Curve = Goldsboro NC NOAA ATLAS 14.IDF Asc/Rec limb fact = 1/1 Q (cfs) 21.00 18.00 15.00 12.00 o M 3.00 0.00 _r 0 1 2 3 — Hyd No. 1 Goldsboro Recycle Basin Hyd. No. 1 — 25 Year 4 5 Q (cfs) 21.00 18.00 15.00 12.00 ME M 3.00 0.00 6 7 8 9 10 11 12 Time (min) R. S. (Butch) Lawter, Jr. S. T. Wooten Corporation 3801 Black Creek Road Wilson, North Carolina 27893 Dear Mr. Lawter: May 8, 2008 Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality MAY 13 2003 [avieC14rl�® Subject: NPDES Stormwater General Permit Additional Information Request NCG140380 NOI Application — Goldsboro Concrete Plant #20 Wayne County On April 16, 2008, The Division of Water Quality's Stormwater Permitting Unit received your application and request for coverage under NCG140000 and an authorization to construct (ATC) wastewater treatment facilities. After review of the submitted materials, the Division is requesting additional information to complete processing this permit application: Recycle System • The wastewater inputs (1,350 cu. ft) are based on the amount of water used to wash trucks per each cubic yard of concrete produced. Does this quantity include only mixing drum washout, or also vehicle and equipment cleaning (e.g., from proposed wash down area)? • The wastewater inputs do not include any amount draining from aggregate stockpile wet -down. If a negligible amount is assumed to drain from here on a daily basis, please clarify this assumption in the calculations. Otherwise, please provide an estimated contribution. • How/where will the water from the recycle system be routed back into the production process? Please explain the configuration and show related piping, pumps, etc. on the plans. • Where (which chamber) in the recycle system will the automated pH system be installed and pH be adjusted? Please include this detail on the plans. Runoff Volume Calculations and Recycling Chamber Capacity Please address or correct discrepancies of numbers in the calculations. For example, the cover letter notes an operating volume of 6,549 cu. ft; however, calculations for the Recycle Wash - Water Basin indicate a volume at the weir of 6,498 cu. ft. Also, the Hydrograph Report notes a rainfall intensity for the 25-year storm as 8.605 in/hr, but the peak runoff volume calculations cite 9.05 in/hr (which is consistent with NOAA data for the Goldsboro area). In addition, calculations show peak runoff volume (Qp) as 17.94 cfs (correct if 8.605 in/hr used), but a Qp corresponding to 9.05 in/hr intensity would be 18.87 cfs. rfc�°pp`hCarolma Natura//il North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX (919) 733-2496 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer— 50% Recycled/l 0% Post Consumer Paper R.S. (Butch) Lawter, Jr. S.T. Wooten Corporation Additional Information Request May 8, 2008 The runoff coefficient appears too low for this type of land use and amount of proposed imperviousness. Much of the 4.17 acres here will be paved, graveled, or covered in stockpile materials, all of which should be considered impervious area. Also, if a composite runoff coefficient was used, there is no information about how C = 0.5 was derived. (Note that when using the rational method to estimate runoff volume, runoff coefficients should not be composited; runoff volumes should be calculated separately and added.) Please outline assumptions about the coefficient used, references used to obtain that coefficient, and/or modify calculations of runoff volume. • The hydrograph estimates a runoff volume of 6,459 cu. ft. This value appears to be a significant underestimate the amount of runoff expected in a 25-year, 24-hour event in this area (approximately 7.24 inches, according to NOAA data). A rough estimate that assumes 80 percent of the rainfall falling on 4.17 acres in a 25-year event enters the recycle system (80 is just as an example — a higher percentage may be more appropriate, depending on amount of imperviousness) yields over 87,600 cu. ft of runoff. This value is based on a more simplified calculation of [(percent imperviousness) x (depth of rainfall) x (drainage area)]. While this approach may over -predict runoff, we would not expect the result to be orders of magnitude greater than a hydrograph analysis. Modifying the rational runoff coefficient to better reflect the imperviousness at the plant site may bring the hydrograph volume estimate up to a more realistic value. However; if the hydrograph result is largely discrepant with the amount of runoff estimated by the more simplified calculation of runoff based on depth, drainage area, and imperviousness, you should present an explanation about the assumptions and equations in the hydrograph calculations. If the estimated peak flow and runoff volume need to be recalculated as our initial review suggests, the recycle basins may need to be resized, and/or the design storm basis changed. In addition, settling calculations will need to be modified with a corrected peak flow value to ensure discharges will meet effluent limits. Please submit modified calculations, plans, and/or other information necessary to resolve discrepancies with the potential runoff volume. Please submit the additional information by June 11, 2008 so we can continue processing your request. If you need more time to submit this information, please let us know. If you have any questions or would like to discuss this matter further, please contact me at (919) 733-5083, extension 529. Sincerely, Bethany A. Georgoulias Environmental Engineer cc: Washington Regional Office Stormwater Permitting Unit Files Robert S. Bartlett, P.E./ Bartlett Engineering & Surveying, PC/ 1906 Nash Street North/ Wilson, North Carolina 27893-1726 9ooz/}%/,L -w v1d5 SITE DATA I I i I I i I I I I ( IN FEET ) 1 inch = 100 ft. SPRING BRANCH CANAL LOT AREA: 19.8 ACRES± SPECIAL/CONDITIONAL 6.6 ACRES± USE PERMIT AREA: DISTURBED AREA: 8.4± ACRES PIN: 2680868084 2680873645 NOTE: THIS PLAN SHEET IS INTENDED TO SHOW LOCATION OF RECYCLED WATER BASIN AND GRADING IN THE VICINITY OF THE BASIN AND SWALE ONLY. BARTLEiT DATE: PROJECT: : ST CLIENT CODE: STW 335 APRIL 2008 CADFILE: 07335SP1 SE ENGINEERING & SURVEYING, PC OVERALL SITE S.T. WOOTEN CONCRETE PLANT #20 SCALE: DIRAWNB BY: CEP 20106 \ 1 = 100' SURVEY BY: TB, JS 1906 NASH STREET NORTH TELE: (252) 399-0704 IGINEI- WILSON, N.C. 27893-1726 FAX: (252) 399-0804 —US HIGHWAY 70 WEST GOLDSBORO, NC — REVISIONS: 17- AIL ELEV. 04/02/08 S. BaR EMAIL: infoObartletteng.com DENR 05/28/08 DENR 09/30/08 FORK TOWNSHIP NORTH CAROLINA PIN # 2680868084 r�' LOCATION MAP SCALE 1"=1000" WAYNE COUNTY ZONE: SHEET RB1 -\_�MUU\_vIVVrMVJw I J\JIW \U/JJJ\OWg \U/J03RLUZ.0Wg 11/II/LVU6 N:0/:u0 AM Lw BYPASS OIAIAI r /nivrMclnkl r T0911�PI /AR / I � 0J.• i \`101.0 I I \I DRAINAGE AREA TO It RECYCLE BASIN _ X -4.17 ACRES X � I X X X -- _ X I I I I I I� I L RIPRAP LINING ON SLOPE BYPASS SWALE/DIVERSION GRAPHIC SCALE DITCH CALCULATIONS 30 0 15 30 60 120 1-6-YEAR-DESIGN STORM N .. 0.015 LOCATION REQUIRED DITCH,BOTfOM FLOW SIDE FLOW WETTED HYDRAULIC MANN.: ACTUAL TOP SHEAR PERM. TEMP ( IN FEET FLOW. SLOPE WIDTH DEPTH SLOPE AREA PERIMETER RADIUS VEL :.CAPACITY WIDTH STRESS LINER LINER 1 inch = 30 ft. Q s d y M A P R V Q W (Ibs/sq.ft REQUIRED REQUIRED' SWALETO RECYCLE BASIN 6.39 0005i 1''. 0.68 3'. 2.07'. 530'. 039, 3.71: 7.67'' 5.08!. 0,21 NO YES BYPASS SWALE 10.62 0004 1 0.83 3 290 625 046 376, 1090' 598 0.21 NO YES '.. BYPASS SWALE ON SLOPE' 10.62 023 1 0.32 3''. 063 302 021 1669': 1047. 292 4.59 YES YES USE MIN. 19'C50 RIPRAP LINING ON STEEP CHANNEL SLOPE BARTLETT RECYCLED ENGINEERING & SURVEYING, PC WATER BASIN U1� 1906 NASH STREET NORTH TELE: (252) 399-0704 ��' ^IN6`�� WILSON, N.C. 27893-1726 FAX: (252) 399-0804 LOCATION S. BP_,�" ~,= EMAIL: info®bartletteng.com BYPASS SWALE/DIVERSION (2.95 ACRES) FLOATING PUMP (TYP.) \ I COMPOSITE "C" VALUE DETERMINATION O=CIA PROPOSED' CONDITIONS "C" VALUE TOTAL ACRES 2.94 IMPERVIOUS AREAS 1.29 0.95 STOCKPILE AREAS 0.8 0.90 MANAGED PERVIOUS 0.85 6.35 COMPOSITE "C" VALUE 0.76 "C" VALUES OBTAINED FROM "DESIGN HYDROLOGY AND SEDIMENTOLOGY FOR SMALL CATCHMENTSw`BY HAAN, BARFIELD, AND HAYES SITE DATA: I LOT AREA: 19.8 ACRES± SPECIAL/CONDITIONAL 6.6 ACRES± USE PERMIT AREA: DISTURBED AREA: 8.4± ACRES PIN: 2680868084 - 2680873645 0 GS• y NOTE: THIS PLAN SHEET IS INTENDED TO >0 SHOW LOCATION RECYCLED WATER ��� _ \� BASIN AND GRADING IN THE VICINITY OF oa THE BASIN AND SCALE ONLY. DRAINAGE AREA FLOW ARROW LOCATION MAP SCALE 1"=1000' PROPOSED CONCRETE PROPOSED 8" CABC, 4" ASPHALT STANDARD EROSION CONTROL NOTES: THE CONTRACTOR IS RESPONSIBLE FOR COMPLYING WITH THE NPDES PHASE II REQUIREMENTS. REQUIREMENTS INCLUDE, BUT NOT LIMITED TO THE FOLLOWING: 1. IMPLEMENT THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN AND KEEP A COPY OF THE PLAN ON SITE. DEVIATION FROM THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN WILL BE CONSIDERED A VIOLATION OF THE FEDERAL NPDES GENERAL PERMIT. 2. PREVENT SPILLING OF FUELS, LUBRICANTS, COOLANTS, HYDRAULIC FLUIDS, AND ANY OTHER PETROLEUM PRODUCTS ONTO THE GROUND OR INTO SURFACE WATERS. - DISPOSE OF SPENT FLUIDS APPROPRIATELY. 3. USE HERBICIDES, PESTICIDES, AND FER71UZER IN A MANNER CONSISTENT WITH THE FEDERAL INSECTICIDE, FUNGICIDE AND RODENTICIDE ACT AND IN ACCORDANCE WITH LABEL RESTRICTIONS. 4. CONTROL MANAGEMENT AND DISPOSAL OF UTTER AND SANITARY WASTE FROM THE SITE SO THAT NO ADVERSE IMPACT TO WATER QUALITY OCCURS. 5. INSPECT ALL EROSION AND SEDIMENTATION CONTROL FACILITIES EVERY SEVEN CALENDAR DAYS (TWICE IN SEVEN CALENDAR DAYS FOR STORMWATER DISCHARGE TO STREAMS ON THE LATEST EPA -APPROVED 303(d) UST) AND WITHIN A 24-HOUR PERIOD OF ANY STORM EVENT OF MORE THAN 0.5 INCHES OF RAIN IN A 24-HOUR PERIOD. MAINTAIN A RAIN GAUGE ON SITE AND KEEP RECORD OF THE RAINFALL AMOUNTS AND DATES. 6. OBSERVE STORMWATER RUNOFF DISCHARGES AND LOOK FOR CLARITY, FLOATING SOLIDS, SUSPENDED SOLIDS, OIL SHEEN AND OTHER OBVIOUS INDICATORS OF POLLUTION AND EVALUATE THE EFFECTIVENESS OF THE EROSION AND SEDIMENTATION CONTROL MEASURES. IF SEDIMENTATION IS LEAVING THE DISTURBED AREA, TAKE IMMEDIATE ACTION TO CONTROL THE DISCHARGE. \ 7. KEEP A RECORD OF THE INSPECTIONS. RECORD ANY VISIBLE SEDIMENTATION FOUND OUTSIDE THE DISTURBED LIMIT AND RECORD MEASURES TAKEN TO CLEAN UP THE \ SEDIMENT. MAKE THESE RECORDS AVAILABLE TO THE DIVISION OF WATER QUALITY \ OR ITS AUTHORIZED AGENT UPON REQUEST. \ 8. MAINTAIN EROSION AND SEDIMENT CONTROL MEASURES TO KEEP THE OPERATING EFFICIENCY AT OPTIMUM AND MAINTAINED AT MINIMUM 50% CAPACITY. \ 9. EARTH BERMS ON SEDIMENT TRAP AND DIVERSIONS TO BE STABILIZED WHEN \ INSTALLED. \ \ 10. GROUND COVER ON ALL SLOPES TO BE ESTABLISHED WITHIN 15 WORKING DAYS \ OR 30 CALENDAR DAYS, WHICHEVER IS SHORTER. \ 11. GENERAL CONTRACTOR WILL KEEP THE STREET AT THE CONSTRUCTION ENTRANCE / CLEAN. / GENERAL NOTES: / SILT FENCE TO BE INSTALLED AS SHOWN ON PLANS OR AS / DEEMED NECESSARY BY VISUAL OBSERVATION. LOCATION, QUANTITY AND PLACEMENT OF DRAINAGE PIPES AND EROSION CONTROL DEVICES MAY VARY TO BETTER CONFORM TO FIELD CONDITIONS. STORM DRAINS TO BE INSTALLED AS SOON AS POSSIBLE WITH PROPER INLET PROTECTION. CONTRACTOR RESPONSIBLE FOR COMPLYING WITH ALL REQUIREMENTS/ CONDITIONS OF ALL ENCROACHMENTS & PERMITS INCLUDING PROVIDING BGNDS/INSURANCE IF REQUIRED. CONTRACTOR IS RESPONSIBLE FOR COORDINATING REQUIRED INSPECTIONS. CALL ONE CALL CENTER AT 1-800-632-4949 FOR LOCATIONS OF EXISTING UTILITIES 48 HOURS MINIMUM PRIOR TO EXCAVATION. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL WORK ZONE TRAFFIC CONTROL IN OR ADJACENT TO NCDOT OR CITY RIGHT-OF-WAY. ALL METHODS SHALL CONFORM TO THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD) AND NCDOT STANDARDS. EXCAVATION AND GRADING PLAN NOTES: CONTRACTOR SHALL NOTIFY AND COOPERATE WITH ALL UTILITY COMPANIES OR FIRMS HAVING FACILITIES ON OR ADJACENT TO THE SITE BEFORE DISTURBING, ALTERING, REMOVING, RELOCATING, ADJUSTING OR CONNECTING TO SAID FACILITIES. CONTRACTOR SHALL RAISE OR LOWER TOPS OF EXISTING MANHOLES AS REQUIRED TO MATCH FINISHED GRADES. UNUSABLE EXCAVATED MATERIALS AND ALL WASTE RESULTING FROM CLEARING AND GRUBBING SHALL BE DISPOSED OF OFF -SITE BY CONTRACTOR, AT AN APPROVED PERMITTED LOCATION. BEFORE ANY MACHINE WORK IS DONE, CONTRACTOR SHALL STAKE OUT AND MARK ITEMS ESTABLISHED BY THE SITE PLAN. CONTROL POINTS SHALL BE PRESERVED AT ALL TIMES DURING THE COURSE OF TH PROJECT. LACK OF THE PROPER WORKING POINTS AND GRADE STAKES MAY REQUIRE CESSATION OF 01 UNTIL SUCH POINTS AND GRADES HAVE BEEN REPLACED TO THE OWNERS SATISFACTION. STRUCTURAL FILL: ALL NEWLY PLACED STRUCTURAL FILL OR BACK FILL SHOULD BE COMPACTED TO NOT LESS THAN 95% OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY EXCEPT IN THE FINAL FOOT BENEATH PAVEMENT STRUCTURES WHERE THE REQUIREMENT SHOULD BE INCREASED TO 98% OF THE PROCTOR MAXIMUM DRY DENSITY. IT IS NOT ANTICIPATED THAT EITHER DIFFICULT EXCAVATION OR GROUND WATER WILL BE ENCOUNTERED FOR CUT DEPTHS UP TO 15 FEET ON THIS SITE. ALTHOUGH THE SOIL APPEARS TO BE WELL SUITED FOR REUSE AS STRUCTURAL FILL, IT SHOULD BE RECOGNIZED THAT CLAY SOILS ARE SENSITIVE TO MOISTURE; AND THEREFORE, IT IS RECOMMENDED THAT EARTHWORK BE PERFORMED DURING THE DRIER MONTHS OF THE YEAR. THE CONTRACTOR SHOULD BE PREPARED TO MOISTURE CONDITION THE SOILS AS NECESSARY IN ORDER TO IMPROVE THE EFFICIENCY OF THE COMPACTING OPERATIONS AND EFFORTS. OFFSTTE BORROW / TRENCH BORROW: OFFSITE BORROW MATERIAL PLACED ON SITE SHOULD BE LOW PLASTICITY (PI LESS THAN 25 AND LL LESS THAN 50) AND SHALL BE FREE OF ORGANIC MATERIAL OR DEBRIS PLACE FILL IN 8 TO 10" LOOSE UFTS AND COMPACT TO 95% OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY, ASTM D698. THE MOISTURE CONTENT OF THE SOIL SHOULD BE MAINTAINED WITHIN ± 3 PERCENTAGE POINTS OF THE OPTIMUM MOISTURE CONTENT DETERMINED BY THE SAME TEST. OFF -SITE BORROW MATERIAL TO BE OBTAINED FROM A PERMITTED SOURCE. EXISTING CONDITIONS: THE CONTRACTOR SHALL BE RESPONSIBLE FOR REVIEWING ALL EXISTING JOB CONDITIONS. ANY ADVERSE CONDITIONS AFFECTING WORK SHOWN ON THESE DRAWINGS SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER FOR POSSIBLE CLARIFICATION OR RECONCILLATION. CONSTRUCTION SAFETY: THESE DRAWINGS DO NOT CONTAIN THE REQUIREMENTS FOR JOB SAFETY. ALL PROVISIONS FOR SAFETY SHALL BE SOLE RESPONSIBILITY OF THE CONTRACTOR. "REFER TO ARCHITECTURAL PLANS FOR EXACT BUILDING DIMENSIONS AND FINAL PLUMBING SIZES AND LOCATIONS. DATE: PROJECT: 07-335 APRIL 2008 CLIENT CODE: STW S.T. WOOTEN CONCRETE PLANT #20 DRAWNCADFIL 073355P1 FIELD BOOK: SCALE: DRAWN BY: CEP SURVEY BY: - US HIGHWAY 70 WEST GOLDSBORO, NC - REVISIONSIGETA130ELEV. 04/02/08T8, JB DENR 05/28/08 DENR 09/30/08 FORK TOWNSHIP NORTH CAROLINA PIN # 2680868084 WAYNE COUNTY ZONE: SHEET R81A P:\-CADD\-LANDPROJECTS\STW\07335\dwg\07335REC2.dwg 11/11/2008 9:57:05 AM EST �Ii. �I i I �' � � �' 111 1 t��iiY1i h u 1✓ 'I('"� 'f(r�� Ti �(� �b1pr 7 TOP / `NALL EV. = 102'-0" FINISH GRADE 101'-0" MAX. CONT. WATER —STOP _11TOP / SLAB ELEV. 0 GRAPHIC SCALE 5 10 m ( IN FEET ) 1 inch = 10 ft. 0.5, 34._0„ #5 @ 1'-0" O.C., EACH WAY DOWEL AT EACH VERT. — MATCH SIZE AND SEE SCHED, FOR LAP • AT TOP / HOOK AT BOTT. #4 @ 1'-0" O.C., EACH [—WAY, TOP & BOTT. (TYP.) 5 1F 15'-0" 2.0' RECYCLE BASIN GRADE 00.0') RECYCLED WATERLINES FOR EQUIPMENT WASHDOWN VIA YARD HYDRANTS (TYP.) v TOP / WALL ELEV. = 102'—O' FINISH GRADE-� #5 @ 1'-0" O.C., 101'-0" MAX. EACH WAY CONT. WATER —STOP 0 DOWEL AT EACH VERT. — MATCH SIZE AND SEE SCHED. FOR LAP AT TOP / HOOK AT BOTT. #4 @ 1'-0" O.C., EACH WAY, TOP & BOTT. PH MONITORING AND CONTROL SYSTEM ROOM FINISH GRADE 101'-0" MAX. CONT. WATER —STOP TOP / SLAB _ Y ELEV.= VARIES o . General Notes: I. Design Criteria: 1. Building Code .................................................... 2002 NO State Building Code 2. Design Loads: a) Slab Loads..................................................................................................................... H2O II, Foundations: 1. Foundation design is based on a presumptive allowable soil bearing pressure of 2000 psf. 2. Slab shall bear on 4" of compacted, porous fill. Provide vapor barrier between porous fill and earth, III. Structural Concrete: 1. Concrete shall have a minimum 28—day compressive strength of 3000 psi, unless noted otherwise. 2. Concrete shall be normal —weight and shall have a maximum unit weight of 145 pcf, unless noted otherwise. 3. Reinforcing steel shall conform to ASTM A615, Gr60, including ties and stirrups. 4. Minimum concrete cover shall be as follows, unless noted otherwise: a) Unformed surfaces in contact with the ground ................................. 3" b) Formed surfaces exposed to earth or weather .............. I................... 2" c) Formed surfaces not exposed to earth or weather ........................... 1 1/2" 5. Plumbing, mechanical, and electrical (PME) drawings shall be referred to for drains, sleeves, outlet boxes, conduit, anchors, etc. The various trades are responsible for placing their respective items. IV. Miscellaneous: 1. No opening shall be made in any structural member without written approval of the Structural —Engineer —of —Record. 2. No change in size or dimension of structural members sholl be made without written approval of the Structural —Engineer —of —Record. 3. The contractor is responsible for limiting the amount of construction loads applied to the structural framing. Construction loads shall not exceed the design capacity of the framing at the time the loads are applied. 4. Do not scale these drawings; use dimensions. IN E TOP ELEV. = 102'-0" #5 @ l'—C" O.C., EACH WAY DOWEL AT EA: H VERT. — MATCH SIZE AND SEE SCHED. FOR AP AT TOP / HCOK AT BOTT. #4 @ 1'-0" O.C., EACH WAY, TOP & BOTT. 1 SEC'—'01�—O" 2 SECTION 3 SECTION 3/4" BARTLETT ENGINEERING & SURVEYING, PC 1906 NASH STREET NORTH TELE: (252) 399-0704 WILSON, N.C. 27893-1726 FAX: (252) 399-0804 V,Py i S B n I EMAIL: info®bartletteng.com P:\-CADD\-LANDPROJECTS\STW\07335\dwg\07335REC2.dwg 11/11/2008 9:57:05 AM EST RECYCLE BASIN DATE: PROJECT: 07-335 APRIL 2008 CLIENT CODE: STW CADFI LE: 073355P 1 S.T. WOOTEN CONCRETE PLANT 020 1" = 10' FIELD BOOK DRAWN BY: CEP SCALE: SURVEY BY: TB, JB - US HIGHWAY 70 WEST - REVISIONS: CETAIL ELEV. 04/02/08 7_NR 09/30/08 LAP SPLICE AND 90° HOOK SCHEDULE BAR SIZE LAP (in,) 90' HOOK ('n') TOP BARS* OTHER BARS #3 22 17 6 #4 29 22 8 #5 36 28 10 * "Top Bars" refers to horizontal reinforcing placed with more than 12 in. fresh concrete cast below the reinforcing. REINFORCING BAR LAP & HOOK SCHEDULE 4 SECTION 3/4" = 1'-0" FORK TOWNSHIP NORTH CAROLINA PIN # 2680868084 WAYNE COUNTY ZONE: SHEET RB2