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HomeMy WebLinkAboutNCG140375_COMPLETE FILE - HISTORICAL_20090702STORMWATER DIVISION CODING SHEET NCG PERMITS PERMIT NO. /VC,,& Ic-Jv.3-75 DOC TYPE 6a HISTORICAL FILE ❑ MONITORING REPORTS DOC DATE ❑ � uO D % O � YYYYMMDD Mr. Richard R. Allen, Sr. Concrete Service Company NCG 140375 January 25, 2008 Engineer's Certification (COC No. NCG140375) 1:, A na legeman , 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, concrete service co Plant N. .Deancheater Road for the Project Name Location 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 Concrete Service Company Ready Mix site. I 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. 31804 _ Stormwater Permitting Unit NC Division of Water Quality 1617 Mail Service Center Raleigh, NC 9.7699-1617 i ts` . , W-0 o i! rEE53 =r . Act0W A rFgpG I}Michael F. Easley, Governor 7 f William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources Q Coleen H. Sullins, Director Division of Water Quality January 25, 2008 Mr, Richard R. Allen, Sr. Concrete Service Company PO Drawer 1867 Fayetteville, NC 28302 Subject: General Permit No. NCG140000 Concrete Service Company COC No. NCG140375 Cumberland County Dear Mr. Allen: In accordance with your application for a discharge permit received on January 11, 2 00 8, 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 dated May 9, 1994 (or as subsequently amended). Please take notice that this certificate of coverage is ndi 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 treatment facilities has been issued concurrently with this COC. The Fayetteville Regional Office, telephone number (910) 433-3300, 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 permitted 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. NP Carolina �tura!!� North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 276994617 Phone (919) 733-5083 Customer Service Internet: www.ripwaterquality,ora Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-9612 1-877-623-6748 An Equal Opportunity,'AHlrmative Action Employer— 50% Retycled110% Post Consumer Paper Mr. Richard R. Allen, Sr. Concrete Service Company NCG140375 January 25, 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 Robert Patterson at telephone number (919) 733-5083 ext. 360. Sincerely, j2 for Coleen H. Sullins cc: Fayetteville Regional Office Central Files Stormwater Permitting Unit Files enclosure Mr. Richard R. Allen, Sr. Concrete Service Company NCO140375 January 25, 2008 Engineer's Certification (COC No. NCG140375) I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, for the Project Name Location 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 Concrete Service Company Ready Mix site. I 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 Registration No. Date Mail this Certification to; Stormwater Permitting Unit NC Division of Water Quality .1617 Mail Service Center Raleigh, NC 9.7699-1617 STATE OF NORTH CAROLINA DEPARTMENT, OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY GENERAL PERMIT NO. NCG140000 CERTIFICATE OF COVERAGE No. NCG140375 STORMWATER AND PROCESS WATER 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, Richard R. Allen, Sr. / Concrete Service Company is hereby authorized to discharge stormwater from a facility located at Concrete Service Company W. Manchester Road Fayetteville Cumberland County to receiving waters designated as Tank Creek, a Glass C water in the Cape Fear 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 January 25, 2008. This Certificate of Coverage shall remain in effect for the duration of the General Permit. Signed this 25`h day of January, 2008. for Coleen H. Sullins., Director Division of Water Quality By the Authority of the Environmental Management Commission TV OU 72 ;A Vt" 6 BM Ak �i Concrete Service Company Par 7­7 oil NCG140375 N E S Map Scale 1:24,00 .11%F V NN I MIN-1 Richard R. Allen., Sr. Concrete Service Company Latitude: 351 11' 24" N Longitude: 780 591 4211 w Receiving Stream: Tank Creek Stream Class: C Sub -basin: 03-06-14 (Cape Fear River Basin) Facility Location Re: NCG140375 - Concrete Service Company Subject: Re: NCG140375 - Concrete Service Company From: Mike Lawyer <Mike.Lawyer@ncmail.net> Date: Wed, 23 Jan 2008 16:54:46 -0500 To: Robert Patterson <Robert.Patterson@ncmail.net> No concerns with issuing them permit coverage, but since its related to the Fayblock site we'll (regional office) have to keep a close eye on them. Mi ke Robert Patterson wrote: Mi ke, I'm helping Ken get this one issued. He already met with the engineer and reviewed the application package; looks good. Do you have any concerns with it? It discharges to Tank Creek (class C) in northwestern Cumberland County. Thanks. Michael Lawyer Environmental Specialist NCDENR-Division of Water Quality Surface Water Protection Section Fayetteville Regional Office Direct: (910)433-3329 Main: (910)433-3300 Fax: (910)486-0707 1 of 1 1/24/2008 7:13 AM MID -ATLANTIC ASS 0CIATE S,INC. Engineering & Environmental Solutions 409 Rogers View Cowl /Raleigh /North Camlina /27b10 800-486-7568 /919-250.9918 /919-250-9950 Fewshnile rntrx: rnaunn 1 ine. r:am January 11, 2008 Mr. Ken Pickle North Carolina Department of Environment and Natural Resources Division of Water Quality Stormwater and General Permits Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Subject: RESPONSE TO RETURN OF NCG140000 NOI #1166 AND RE -SUBMITTAL OF NOTICE OF INTENT CONCRETE SERVICE COMPANY, INC. WEST MANCHESTER ROAD SPRING LAKE, NORTH CAROLINA MID -ATLANTIC PROJECT NO.000R1944.00 Dear Mr. Pickle: RECEIVT='.r. 1 JAN I Y ?L?rr3 BY: 1t9 This letter serves as a response to your December 7, 2007 letter and as a cover letter for the re - submittal of the Notice of Intent for the above site to be covered under general stormwater permit NCG140000. Please note that the submittal has been revised to address the comments outlined in your December 7, 2007 letter. For ease of review, we have addressed each comment below in the order in which they were presented. 1. Site Plan a. The property lines/project boundaries have been added to the drawing. b. The drainage areas have been delineated on the drawing. c. The locations of outfalls have been noted on the drawing. d. The limits of the aggregate storage areas have been noted on the drawing. Drainage from all aggregate storage areas is designed to flow into the pond. e. There are no industrial activities associated with Drainage Area 2 as this area only includes the site offices. The only outfall associated with Drainage Area 1 is the discharge from the pond. f. All conveyance features are shown on the drawing. 2. Design Notes and Design Details a. The soils report has been removed from the re -submittal. Although we expect the basin to provide some infiltration of water, we have demonstrated compliance with permit limits through other means. The calculations presented in Attachment A demonstrate discharge compliance with total suspended solids (TSS) limits and a Fortrans pH adjustment unit (Model 5000-S or 5000-SK) will be used to adjust the pH in the pond. b. The pH test result has been removed from the re -submittal. c. The large basin noted in your letter is actually two basins. The first basin is a temporary sediment basin to be removed after construction. After construction the site will use one large pond to settle solids. The attached drawing depicts the configuration after construction with the temporary sediment basin removed. Response to Return of NCG140000 NOI #1166 January 11, 2008 Concrete Service Company, Inc. Page 2 West Manchester Road Spring Lake, North Carolina There will be no need to empty the basin as discharges will be within permit limits. d. The locations of the drum wash out area, truck wash area, aggregate piles, and plant wash down area have been noted on the drawing. Wastewater generated in these areas flows into the pond. e. The correct configuration of the reclaimer system has been noted on the drawing and details included in Attachment B. f. If some groundwater leaches into the basin(s) it should not be a problem since our compliance calculations (Attachment A) are based on a worst case scenario of the basin being at capacity when the 25 year/24 hour storm occurs. g. The fogging water used to irrigate the aggregate stockpile will be well water. We appreciate the opportunity to submit this additional information. If you have any questions or need additional information, please do not hesitate to call us at 250-9918_ Sincerely, MID -ATLANTIC ASSOCIATES, INC. 009�� Darin M. McClure, PE Principal Engineer Attachment: Notice of Intent Attachment A — Calculations Attachment B — Scrommel Reclaimer System Drawing CC" Mr. Lanny Clark; Concrete Service Company, Inc. Mrs. Adriana Hegeman, Crawford Design Company 1944.00/12-28-07/Response to Additional Info Request/DMM/aso MID -ATLANTIC ASSOCIATES INC. Engineering & Environmenial Solulions NOTICE OF INTENT MID -ATLANTIC ASSOCIATES, INC. Engineering & Environmental Sviutinnr -01 F-BWA Division of Water Quality / Surface Water Protection rw rir.r�r � NCDENRNational Pollutant Discharge Elimination System M— G�ocrw mrw of [nvinpHnFM u.o Ru�n4. ReyqrtCC3 NCG140000 NOTICE OF INTENT Date Received Year Month D., Check N National Pollutant Discharge Elimination System application for coverage under General Permit NCG140000: STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as: SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete For new plant sites that will discharge or recycle process wastewater (even if commingled with stormwater): This NOI is also an APPLICATION FOR Authorization to Construct (ATC) wastewater treatment facilities. ATC requests must be submitted at least 90 days prior to construction'. For existing plant sites discharging or recycling process wastewater (even if commingled with stormwater): This NOI is also an APPLICATION FOR Authorization to continue to operate wastewater treatment facilities in place. Construction, modification, or Installation of any new treatment components at an existing site requires an ATC. Treatment facilities used to treat or recce process wastewater (including stormwater BMP structures treating process wastewater flows commingled with stormwater) require an ATC prior to construction per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the same time as the Certificate of Coverage (COC) for the NCG14 permit. Design of treatment facilities must comply with requirements of 15A NCAC 2H .0138 & .0139. Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant sites requires submission of three (3) sets of plans and specifications signed and sealed by a Professional Engineer. (P.E.) or qualified statf2 along with this application. A copy of the design calculations should be included. Please see questions 14 & 15. For questions, please contact the DWO Regional Office for your area. (Seepage 5) (Please print or type) 1) Mailing address of owner/operator (address to which all permit correspondence will be mailed): Name Richard R. Allen Sr. Street Address P.O. Drawer 1867 City Fayetteville T _ State NC ZIP Code 28302 Telephone No. 910 323-8509 Fax: (910) 323-9319 2) Location of facility producing discharge: Facility Name Concrete Service Company Facility Contact Lanny H. Clark''= Street Address W. Manchester Road City Spring bake State NC ZIP Code 28390 County Cumberland Telephone No. ( 910) 483-0396 Fax; (910) 486-6724 Page 1 of 5 As per 15A NCAC 2H .0106 'Unless treatment facilities are designed, constructed, and rnal to the company who are qualified to perform such work for their respective companies in accord a I I C (7), plans and specifications must be signed and sealed by a P.E. SWU-229-091007 JA N 1 1 2008 Last revised 09/10/07 BY: U014ui fF f 016h11 Travel N on NC Hwy 87 (N. Bragg Blvd.) from downtown Spring 3) Physical location information: Lake toward Sanford, NC. Make left turn onto W. Manchester Rd. Subject propexty is approx. 0.52 miles on left hand side. Please provide a narrative description of how to get to the facility (use street names, state road numbers, and distance and direction from a roadway intersection). {A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application.) 4) Latitude 35011 ' 24. 36" Longitude 78059' 41 .64" (deg, min, sec) 5). This NPDES Permit Application applies to which of the following: N New or Proposed Facility ❑ Existing 6) Standard Industrial Classification: Date operation is to begin 02/28/08 Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial activity at this facility SIC Code: 3 2 7 3' 7) Provide a briet description of the types of industrial activities and products produced at this facility: (include a site diagram showing the process areas present at this facility.) Eq4dy Mix concrete plant.,Industrial activities include concrete reclaimation, truck wash, stockpile irrigation and plant wash down. _._...... _ 8) Discharge points 1 Receiving waters: How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the property? One What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater and/or wastewater discharges end up in? Little River If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm sewer system (e.g. City of Raleigh municipal storm sewer). No Receiving water classification (if known): Note: Discharge of process wastewater to receiving waters classified as WS-II to WS-V or SA must be approved by the N.C.,Dept. of Environmental Health. If DEH does not approve, coverage under NCG140000 cannot be granted. No new discharges of process wastewater are permitted in receiving waters classified as WS-I or freshwater ORW. 9) Does this facility have any other NPDES permits? ® No ❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility: 10) Does this'facility have any Non -Discharge permits (ex: recycle permits)? R] No ❑ Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility: 11) Does this facility employ any best management practices for stormwater control? 0 No ® Yes If yes, please briefly describe: _ General good housekeeping and a concrete_reclaimation system. stormwater ioond and 1oH adjustment unit designed to treat stormwater. Page 2 of 5 SWU-229-091007 Last revised 09107I2007 ' NCG140000 N.O.I. 12) Does this facility have a Storrnwater Pollution Prevention Plan? ❑ No KI Yes If yes, when was it implemented? After construction is complete. �T 13) Are vehicle maintenance activities occurring or planned at this facility? ® No ❑ Yes Wastewater Treatment Design Information 14) Are discharges occurring or planned from any of the following process wastewater generating activities? Vehicle and equipment cleaning in Yes ❑ No Wetting of raw material stockpiles ® Yes ❑ No Mixing drum cleaning i1 Yes ❑ No If yes to any of the above, please describe the type of process used to treat and/or recycle the process wastewater. Use of a reclaimation system, stormwater detention pond and pH adjustment unit, -1+ For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface 1� area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH - 6-9 SU, Total Suspended Solids (TSS) - 30 mg/I, and Settleable Solids (SS) - 5 ml/I.) [Use separate sheet(s)). If all these discharges are recycled, please refer to Question 15. For plants that recycle and/or discharge process wastewater. When applying -for this permit, you are also applying for an authorization to construct (new treatment facilities) or authorization to continue to operate (existing treatment facilities) as part of the NOI. For new sites, you must submit three (3) sets of design plans and specifications with this application and provide supporting calculations that predict compliance of final discharge with permit limits. For existim sites, applicants should submit three (3) sets of plans and specs for facilities as -built and provide as many design details as possible, or submit a detailed diagram of treatment systems In place that includes information such as tank volumes, dimensions, retention time, piping, settling basin details, etc. Please note: If new treatment systems are planned for an existing site, an ATC will be required prior to construction of those facilities. Plans/specs/calculations prepared by a P.F. and the request for an ATC may be submitted with this NOI, or separately at a later date. DWQ may request the status of your plans for requesting an ATC upon issuance of the COC. 15) Does the facility use or plan to use a recycle system? ® No ❑ Yes If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr) year, 24-hr rainfall event For a recycle system (regardless of when it overflows), please provide plans, calculations, and design specifics (e.g., throughput assumptions/water valance, design volume, retention time, surface area, amount of freeboard in design storm event, etc.). [Use separate sheet(s)]. For a sufficient application, the information must demonstrate compliance of final discharge with permit 4 effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/I, and Settleable Solids (SS) — 5 ml/1), or must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr rainfall event plus one loot of freeboard under design operating conditions. Page 3 of 5 5WU-229-095007 Last revised 09/07/2007 NCG140000 N.O.I. 16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain? ® No ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.) 17) Hazardous Waste: a) is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility? ® No ❑ Yes b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of hazardous waste? ® No ❑ Yes c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of hazardous waste? ® No ❑ Yes d) If you answered yes to questions b. or c., please provide the following information: Type(s) of waste: NA How is material stored: Where is material stored: How many disposal shipments per year: Name of transport 1 disposal vendor: Vendor address: 18) Certification: North Carolina General Statute 143-215.6 B(i) provides that: Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the [Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed ten thousand dollars ($10,000). I hereby request coverage under the referenced General Permit. I understand that coverage under this permit will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an individual permit. I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such information is true, complete, and accurate. Printed Name of Title: t eat; (Signature of R 1icant) (Date Signed) Notice of Intent must be accompanied by a check or money order for $100.00 made payable to: NCDENR Page 4 of 5 SWU-229-091007 Last revised 09/07/2007 NCG140000 N.O.E. Final Checklist This application will be returned as incomplete unless all of the following items have been included: ❑ Check for $100 made payable to NCDENR. ❑ This completed application and all supporting documentation (including design details and calculations for treatment systems). ❑ If an Erosion & Sedimentation Control (E&SC) Plan is required from Division of Land Resources (DLR) 1�= or local designee: documentation verifying applicant has developed and submitted that Plan to the governing agency (required per 15A NCAC 02H .0138). ❑ For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7). VV❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including recycle systems) -as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions, retention time, piping, settling basin details, etc. ❑ A site map showing, at a minimum, (existing or proposed): (a) outline of drainage areas, (b) stormwater/wastewater treatment structures, (c) location of stormwater/wastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures, (e) areas where materials are stored, (f) impervious areas, and (g) site property lines. ❑ A county map or USGS quad sheet with location of facility clearly marked. Mail the entire package to: Stormwater Permitting Unit Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Note The submission of this document does not guarantee the issuance of an NPDES permit. For questions, please contact the DWQ Regional Office for your area. DWO Regional Office Contact Information: Asheville Office ...... (828) 296-4500 Fayetteville Office ... (910) 433-3300 Mooresville Office ... (704) 663-1699 Raleigh Office ........ (919) 791-4200 Washington Office ...(252) 946-6481 Wilmington Office ... (910) 796-7215 Winston-Salem ...... (336) 771-5000 Central Office ..:......(919) 733-5083 Page 5 of 5 SWU-229-091007 Last revised 09/07/2007 A REFERENCES: 1.OVERHILLS, NC AND MANCHESTER, NC DIGITAL RASTER GRAPHIC FILES, SCALE: 1:24,000 US GEOLOGICAL SURVEY. SCANNED FROM 1:24,000-SCALE USGS TOPOGRAPHIC MAPS (OVERHILLS, NC, 1957 PHOTOREVISED 1971, AND MANCHESTER, NC, 1997). Feet 2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION O 2,000 4,000 ATLAS, BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON. D.C. ,DUO DRAWN fy� DATE: TOPOGRAPHIC SITE MAP BY: 7T"'11 JANUARY 2008 DRAFT CHECK: JOB NO: 00OR1944.00 D-ATLANTIC CONCRETE SERVICE COMPANY WEST MANCHESTER ROAD ENG. Gi5 NO: Engineering & 8nvironmentnl Goll:tiona SPRING LAKE, NORTH CAROLINA CHECK: 01G-R1944.40-1 APPROVAL: DWG NO: 1 r CSC_ Spring Lake Plant Calculations - Job No. 000R1941.00 Process Wastewater Generated vs. Water Used at tho Site fThrougheutAfflalar Balance Average work day = 10 hours Wash water produced = 2 gallCY (Truck and plant washdown) Capacity of plant = 3D0 CYlday Wash water per day - 600 gallons Plant Washdown - 10 minuteslday at 1 gallon = 0.133681 d 30 GPM - 300 gallons per day Wash water per day = 80 cf Truck wash - 30 loads per day wilh 20 second wash per load at 30 GPM = 300 gallons per day Watedcu. Yd. Total wash water = 800 GPD1300 CYO = 2 gallCY of concrete = 25 gallons Water Use/Day = 7,500 gallons Water needs exceed amount of wastewater produced each day. Pond Characteristics Length from entry to wier (Ft.) 190 Surface Area of Basin 1 when full (Sq, FL) 19497 Analysis below assumes pond is full when the 25-year storm occurs, The 25-year storm will produce a peak runoff rate into the system. By calculating settling limes based on the peak runoff rate, we are assuming a worst case scenario. Note: Table references below are taken from Erosion and Sediment Control Planning and Design Manual by the NC Sedimentation Control Commission, the NC Department of Environment and Natural Resources, and the NC Agricultural Exlension Service. Determination of Peak Runoff Rate Using tha Rational method 4=CiA Given: Drainage area (acres) 2.15 Maximum slope length (Ft.) 340 Vertical Drop (FL) 2 Average Slope (% foot per foot) 0.59% Location (Table 8,03c) Fayetteville, NC Find: Peak runoff rate from 25-year frequency storm Solution: (1) Drainage area: 2.15 (2) Determine runoff coefficient. C. 0.95 Plant site consists of concrete surfaces Note: Tc calculated from "Time of concentration of small drainage basins graph' attached. C value for Concrete surfaces (fable 8.03b) Tc A 2 minutes Refer to Table 8.03c Intesity, Duration Frequency - Fayettevile, NC {since Tc<5, use intesily value for 5 min. ARq 25 year storm with a 5 minute duration is 8.94 incheslhour - This number (8.94 Incheslhour) is a conservative number and will be used for intensity factor, I. Calculate Peak Runoff for Site Calculate the peak runoff al the drainage area that occurs during a particular design storm even[. Op = CiA Op = peak rate of runoff in cubic feet per second (efs) C = coeficient of runoff I = Intensity of rainfall in inches per hour A = drainage area in acres Coefficient of runoff; C Rainfall intensity; i = Drainage Area Peak Runoff, RP a Runoff Volume Calculate Discharne Characteristics from Pond Weir Length = Calculate depth of Flow Over the Discharae Weir H = JQr(3.1'L)("0,6667 H = depth at Bow over weir in feet 0 = Bow in cis L - length of weir During rain event Qp = Hp = 0.95 8.94 inches/hour 25 year storm 2.15 acres 15.25 cis 5321.00 cf (Sae Hydrograph) 39806.40 gallons 150867.23 liters ®g Fran6s formula 18.26 ds 0.815 ft Calculate Critical Velocity of Particles in Basin 1 During Peak Flow Worse case scenario for particles discharging off site occurs during peak flow conditions. Vc = OplA Ve - Critical velocity in f /sec Qp = Peak Flow A = Average surface area of basin Critical velocity (Vc) = 0.00093655 fUsec Retention lime of particle (Rp) during peak flow - Average Basin Length at Surface I Vc = I OUNc Retention Time (Rp) = 202872 seconds Critical settling velocity (Vc') for particle to settle to weir (rain) - HplRp Critical settling velocity (Vc') = 4.0192E-06 fVsec 'From EBSC manual (Fayetteville) Determine which solids wig dischame over well Our analysis will focus on cement particles due to their small size. Cement particles are the least likely to settle and therefore the most likely to discharge from the site - Calculate particie settling velocity (Vp) and compare it to Vc'. If Vc' a Vp, then those solids will discharge over the weir Formula for Calculating Particle Settling Velocity (Vp): Partide Settling Velocity (fUsec), Vp = g(pl-p2)d'2118u Stokes Law g = gravity = 32.2 Nsec'2 d = diameter of cement particle (it) 1 micron = 3,28084E-06 it p1 = density of cement - 94 Wall p2 = density of water = 62.4 Itdcf u = viscosity of water = 0,0005981 Ibih-sec Source, NISTIR 6931 "Analysis of the ASTM Round•Robin Test on Particle Size Distnbluion of Portland Cement, Phase 0 _. _..... „ _... _ Settling Critical Diameter size distribution %C dlameter (it) Velocity; Vp settling Discharge over (microns) Velocity;Ve Welr(Y!N) - - - (fusee) (nlsec) 1 4.7 4.7 3.28084E-06 1.0173E-06 4.0192E-06 Y 1.5 2.6 T3 4.92126E"06 2.269E"06 4,0192E-06 Y 2 4.8 12.1 6.56168E-06 4.0694E-06 4.0192E-06 N 3 5,6 17.7 9.84252E-06 9.1561E-06 4,0192E-06 N 4 4,6 22.3 1,31234E-05 1.6277E-05 4,0192E-06 N 6 7,6 29.9 1.96850E-05 3.6624E-05 4.0192E-06 N 8 6 35.9 2.62467E-05 6.511E-05 4.0192E-06 N 12 10.5 46.4 3.93701E-05 0.0001465 4.0192E-06 N 16 8.2 54.6 5.24934E-05 0.00026044 4.0192E-06 N 24 13.8 68.4 7.87402E-05 0.00058599 4.0192E-06 N 32 10.3 78.7 1.04967E-04 0.00104176 4.0192E-06 N 48 12.4 91.1 1.57480E-04 0.00234395 4.0192E-06 N 84 5.2 96-3 2.09974E-04 0,00416703 4.0192E-136 N 96 2.8 99.1 3.14961E-04 0,00937582 4,0192E-06 N 128 0.4 99.5 4.19948E-04 0,01666812 4,0192E-06 N �128 0.5 100 - 4,0192E-06 N Based on these calculations, particles 1.5 microns and smaller will discharge over the weir. Calculate Total Suspended Solids Concentration Assume oarticles 1.5 microns and smaller will discharge Diameter Volume of weighted subtotal of % Total size distribution %c Particle Weighted (microns) (microns) Volume Volume Volume 1 4.7 4.7 0.523 0.0248 0,0246 0.0001% 1.5 2.6 7.3 1,766 0.0459 0,0705 0.0002% 2 4.8 12.1 4,187 0,2010 0,2715 0.001% 3 5.6 17.7 14,130 0.7913 1.0628 0.003% 4 4.6 22.3 33,493 1.5407 2,6035 0.006% 6 7,6 29.9 113.040 6.5910 1t,1945 0.028% 8 6 35.9 267.947 16.0768 27,2713 0.068% 12 10.5 46.4 904.320 94.9536 122.2249 0.304% 16 8.2 54.6 2143.573 175.7730 297.9979 0.741% 24 13,8 6B.4 7234.560 998.3693 1296.3672 3.224% 32 10,3 78.7 17148.587 1766.3044 3062.6716 7.616% 48 12.4 91.1 57876.480 7176.6835 10239.3551 25.481% 64 5.2 96.3 137108.693 7133.8121 17373.1672 43.201% 96 2.8 99.1 463011.840 12984.3315 30337.4987 75,438% 128 0.4 99.5 1097509.547 4390,0382 34727.5369 86,355% 128 0.5 100 1097509.547 5487.6477 40215.0846 100.000% 40215.0846 Particles 1.5 microns and smaller make up 7.3% of the total particles but 0,0002 % of the total volume. Since the density of all the particles Is assumed the same, then particles 1.5 microns and smaller also represent approximately 0.0002% of the mass. Estimated amount of cement from redaimer I lb/day See reclaimer calculations Estimated amount of cement washed from under plant 40 thlday Estimated amount of cement washed off each truck 1 I lb1CY Estimated amount of cement washed off each truck 300 Utley Mass of cement discharged 10 pond 341 lb/day Mass of cement to discharge - Mass of cement discharged to pond each day x % of mass = 0,0006 pounds = 271.23 mg Total Suspended Solids of Discharge (TSS) = Mass of cement (mg) ! Volume of Storm Runoff (Liters) TSS - 271.2349248 ! 150667.23 Anticipated TSS (mglL) = 0.0018 mg1L Maximum TS$ (mgll.) - 30 mg1L Calculate settleable solids discharge Methodology for sellable soiitls measures the volume of settleable solids in an Imhoff cone after 60 minutes. An fmhofl cone is approximately 14-inches tall. Results are reported in ml/L. The following table cafcutates the time for particles to settle 1 ", 6" and 14", Settling Valo[1ty " 1SettlingTlme 6" Settling 14" Settling Diameter (microns) (lusec) Time (minutes) Time (minutes) (minutes} 1 1,01734E-06 1365.21 8191.28 19113,00 1.5 2.28902E-06 606.76 3640.57 8494.67 2 4.06937E-06 341.30 2047.82 4778.25 3 9.15607E-06 151.69 910.14 2123.67 4 1.62775E-05 65.33 511.96 1194.56 6 3 66243E-05 37.92 227.54 530.92 From calculations above, particles 1.5 microns and smaller will lake longer than 60,minutes to settle only 6", Anticipated Settleable Solids - 0 mVL Maximum allowable Settleable Solids = 5 mVL pH Analysis A Fodrans pH control system (or equivalent) will be installed at the discharge point of pond CSC - Sprinn Lake Plant Reclalmor Calculations - Job No. 1944.00 Process Wastewater Entering Reclainer System Trucks wastied out per day 8 Gallonsitruck washout = 200 gallons CemenUCY of mix = 500 pounds CY of washout per truck = 1 CYlday Wash water per day = 1600 gallons Water discharged into reclaimer per day 1 gatlon = 0.133681 cf Wash water per day = 214 cf Cement per day = 4000 pounds Cement discharged into reclaimer per day Calculate average now of water entering system. This assume that conerele is continuing to be reclaimed during the 25-yearl24-hour storm, Average flow through velocity = 30.00 g p m Hose now velocity, = 3.74 cfs Surface Area of Reclaimer Pit Area for Settlement Calculations (Worst Case Scenario) Basin 1 ft Length of weir x width of basin 1 12' x 12') Basin 2 ft 26' x 12' Basin 3 EEM it 26' x 12' Basin 4 ft 3T x 12' Basin 5 49' x 12' Calculate Discharge Characteristics from Basin 1 Weir Length t2 ft Calculate depth of Flow Over the Discharpe Weir H=101(3.1'L)]^&6667 Francis formula H - depth of flow over weir in feet O=flow incfs L - length of weir Op . 3.74 cfs Hp = 0.216 f: Calculate Critical Veloclly of Parkin in Basin 1_During Peak Flow Worse rase scenario for panicles discharging off site occurs during peak flow conditions. Vc - OplA Vc = Critical velocity in ftlsec Op - Peak Flow A - Average surface area of basin Critical velocity (Vc) = 0.02597394 fUsec Retention time of particle (Rp) during peak now = Average Basin Length at Surface! Vc= 12'Nc Retention Time (Rp) = 462 seconds Critical selfling velocity (Vc') for particle to settle to weir (rain) = Hp/Rp Critical settling velocity (Vc') = 0.00046802 Wsec Determine which solids will discharge over weir Our analysis will focus on cement panicles due to their small size, Cement particles are the least likely to settle and therefore the most likely to discharge from the site. Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc' n Vp, then those solids will discharge over the weir. Formula for Calculating Particle Settling Velocity (Vp): Particle Settling Velocity (tUsac), Vp - g(p1-p2)d'2118u Stokes Law g - gravity 32.2 fUsec'2 d - diameter of cement particle (ft) 1 micron - 3.28084E-06 fl pt - density of cement = 94 Iblcf p2 - density of water = 62.4 IblCI u = viscosity of water = 0,0005981 Iblff-sec Source: NISTIR 6931 "Analysis_ of the ASTM Round -Robin Test on Particle Size Dist6btuion of Ponland Cement: Phase II SeMing Critical�-' Diameter size dlstrlbutlon %< diameter (h) Velocity; Vp Settling Discharge over (microns) (111secj Yalocity;Vc' Weir(YIN) 1 4.7 4.7 3.28084E-06 1.0173E-05 4.6802E-04 Y 1.5 2.6 7.3 4.92126E-06 2.289E-06 4.6802E-04 Y 2 4.8 12.1 6.56168E-06 4.0694E-06 4.6802E-04 Y 3 5.6 17.7 9.84252E-06 9.1561E-06 4.6802E-04 Y 4 4.6 22.3 1.31234E-05 1.6277E-05 4.6802E-04 Y 6 7.6 29.9 1.96850E-05 3.6624E-05 4.6802E-04 Y 8 6 35.9 . 2.62467E-05 6.511E-05 4.6802E-04 Y 12 10,5 46A 3.93701E-05 0.DO01465 4.6802E-04 Y 16 8.2 54,6 5.24934E-05 0.00026044 4.6802E-04 Y 24 13.8 60.4 7.87402E-05 0,00058599 4.6802E-04 N 32 10.3 78.7 1.04987E-04 0 00104t76 4.6802E-04 N 48 12A 91.1 1.57480E-04 0,00234395 4.6802E-04 N 64 5,2 96.3 2.09974E-04 OA0416703 4.6802E-04 N 96 2.8 99.1 3.14961E-04 0.00937582 4.6802E-04 N 128 0.4 99.5 4.19948E-04 0.01666812 4.6802E-04 N >128 0.5 100 - 4.6802E-04 N Based on these calculations, particles 16 microns or leas will discharge over the weir. Calculate Discharge Characteristics from Basin 2 Weir Length = 12 fl Calculate depth of Flow Over „the Discharge Weir H = (0!(3.1-L)1-0,6667 Francis formula H - depth of flow over weir in feet Q = flow in cis L - length of weir Qp = 3.74 cis Hp- 0.216 ft Calculate Critical Velocity of Particles Flowina Throuah Basins 1 3 2 Worse case scenario for particles discharging off site occurs during peak flow conditions. Vc = QpIA Vc = Critical velocity in fVsec Op = Peak Flow A = Average surface area of basin Critical velocity (Ve) - 0.0082023 fVsec Retention time of particle (Rp) during peak flow = Average Basin Length at Surface; Vc = 38'Arc Retention Time (Rp) - 4633 seconds Critical settling velocity (Vc') for particle to settle to weir (rain) - HP/Rp Critical settling velocity (Vc') = 4.6672E-05 fusec Determine which solids will discharge over welr Our analysis will focus on cement particles due to their small size. Cement particles are the least likely to settle and therefore the most likely to discharge from the site, Calculate particle settling velocity (Vp) and compare it to Vc'. It Vc' a Vp, then those solids will discharge over the weir. Formula for Calculating Particle Settling Velocity (Vp): Particle Settling Velocity (fllsec), Vp = g(pl•p2)d*2/lau Stokes Law g = gravity - 32.2 fusec"2 it - diameter of cement padicte (ft) 1 micron = 3.28084E-06 it pl - density of cement 94 Ibcf p2 = density of water = 62.4 Ibld u - viscosity of water a 0.OD05981 Uft-sec Source: -NISTIR 6931 "Analysis of the ASTk1 Round -Rohm Test on Particle Size Distribtumn of Portland Cement: Phase II Settling Critical Diameter size distributionX� diameter (it) Velocity"Vp settling Discharge over (microns) Iftleec) velocity; Weir(YIN) 1t1sefuse) cl 1 4.7 4.7 3.26084E-06 1,0173E-06 4.6672E-05 Y 1.5 2.6 7.3 4.92126E-06 2.289E-06 4.6672E-05 Y 2 4,8 12.1 6.56168E-08 4.0694E-06 4.6672E-05 Y 3 5,6 17.7 9.84252E-06 9.1561E-06 4.6672E-05 Y 4 4,6 22.3 1.31234E-05 1.6277E-05 4.6672E-05 Y 6 76 29.9 1.96850E-05 3.6624E-05 4.6672E-05 Y B 6 35.9 2.62467E-05 6.511E-05 4,6672E-05 N 12 10.5 46.4 3.93701E-05 O.OD01465 4.6672E-05 N 16 8.2 54.6 5,24934E-05 0.00026044 4.6672E-05 N 24 13,8 68A 7.87402E-05 0,00058599 4.6672E-05 N 32 10,3 78.7 1.04987E-04 0,00104176 4.6672E-05 N 48 12.4 91.1 1,57480E-04 0,00234395 4.6672E-05 N 64 5.2 96.3 2.09974E-04 0,ON16703 4.6672E-05 N 96 2.0 99.1 3.14961E-04 0,00937582 4.6672E-05 N 128 0.4 99,5 4.19948E-04 0.01666812 4.6672E-05 N >126 0.5 100 - 4.6672E-05 N Based on these calculations, particles 6 microns or lass. will discharge over the weir of Basin 2. Calculate Discharge Characteristics from Basin 3 Weir Length = i2 ft Calculate depth of Flow Over the Discharge Wei H = [01(3.1-L)I"0,6667 Francis formula H = depth of flaw over weir in feet Q = flow 0 cfs L - length of weir flp = 3.74 cis Hp = 0.216 h Calculate Critical ValocIN of Particles Flowina Throuah Basin& 1. 2 @ 3 Worse case scenario for particles discharging off site occurs during peak flow conditions. VC = QplA VC = Critical velocity in ftlsec Op = Peak Flow A - Average surface area of basin Critical velocity (Vc) = O.OD487011 fVsec Retention time of particle (Rp) during peak flow -Average Basin Length at Surface / Vc = 64Wc Retention Time (Rp) = 13141 seconds Critical settling velocity (VC) for particle to settle to weir (rain) = HplRp Critical settling velocity (VC) = 1.6454E-05 Wsoe Datermine which solids wilt dischams over welt Our analysis will focus on cement particles due to their small size. Cement particles are the least likely to settle and therefore the most fikey to discharge from the site. Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc' > Vp, then those solids wilt discharge over the weir. Formula for Calculating Particie Settling Velocity (Vp); Particle Settling Velocity (ftfsec), Vp = g(p1-p2)d'211Bu Stokes Low g = gravity = 32.2 fllsec'2 d = diameter of cement particle (A) 1 micron = 3.28084E-06 ry pt = density of cement z 94 lWcf p2 = density of water = 62.4 Iblef u = viscosity of water = 0.0005981 Ibtft-sec Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Panicle Size Dislnbluion of Portland Camenl Phase II Setuing Critical Diameter size distribution %< diameter(R) Velocity; p Settling Discharge over (microns) Velocity; Ve Welr (YIN) Meo fusee 1 4,7 4.7 3,28064E-06 1.0173E-06 1.6454E-05 Y 1.5 2.6 7.3 4.92126E-06 2.289E-08 1.6454E-05 Y 2 4.8 12.1 6.56188E-06 4.0694E-06 1.6454E-05 Y 3 5.6 17.7 9.84252E-06 9.1561E-06 1.6454E-05 Y 4 4,6 22.3 1,31234E-05 1.6277E-05 1.6454E-05 Y 6 7,6 29.9 1.96850E-05 3.6624E-05 1.6454E-05 N 8 6 35A 2.82467E-05 6.511E-05 1.6454E-05 N 12 10.5 46A 3.93701E-05 0.0001465 1.6454E-05 N 16 8.2 54.6 5.24934E-05 0.00026044 1.6454E-05 N 24 13.8 68,4 7.87402E-05 0.00058599 1.6454E-05 N 32 10.3 78.7 1.04987E-04 ❑.00104176 1.6454E-05 N 48 12.4 91.1 1.57480E-04 0.00234395 1,6454E-05 N 64 5.2 96.3 2.09974E-04 0.00416703 1.6454E-05 N 96 2.8 99.1 3.14961E-04 0.00937582 1,6454E-05 N 128 0.4 99.5 4.19948E-04 0.01668812 1,6454E-05 N >128 0.5 t00 1,6454E-05 N Based on these calculations, particles 4 microns or less will discharge over the weir of Basin 3. Calculate Critical Velocity of Particles Flowing Thrvuah Basins 1, 2, S S 4 Worse case scenario for particles discharging off site occurs during peak flow conditions. Vc = Op7A ' Op 8 Hp are the same as with basins 1 through 3 Vc - Critical velocity in fVsec Op - Peak Flow A = Average surface area of basin Critical velocity (Vc) - 3.09E-03 fVsec Retention time of particle (Rp) during peak Bow = Average Basin Length at Surface I Vc = 101'Nc Retention Time (Rp) = 32728 seconds Critical settling velocity (Vc') for particle to settle to weir (rain) = HpfRp Critical settling velocity (Vc') = 6.6066E-08 ft/sec Determine which solids will dlachame over weir Our analysis will focus on cement particles due to their small size. Cement particles are the toast likely to settle and therefore the most likely to discharge from the site. Calculate particle settling velocity (Vp) and compare it to Vc*, If W ] Vp, then those solids will discharge over the weir. Formula for Calculating Particle Settling Velocity (Vp): Particle Settling Velocity (Rlsec), Vp = g(p1-p2)d"2I18u Stokes Law g = gravity = 32.2 fVsec'2 d = diameter of cement particle (R) 1 micron 3.28064E-08 f1 pl c density of cement = 94 Iblef p2 n density of water n 62.4 Iblef u - viscosity of water = 0.0005981 Ib/H-sec Source: NISTIR 6931 "Analysis o1 the ASTM Round -Robin Test on Partida Size Distribtuion of Portland Cement Phase II Settling Critical Diameterr size distribution %� diameter (R) Ve; Vp Settling Discharge over (microns) (lusee) (Rlse Velocity; Vc' Welr (YIN) (Vsec) 1 4.7 4.7 3.28084E-06 1.0173E-06 6,6066E-06 .,.. Y 1.5 2.6 7.3 4.92126E-08 2.289E-06 6.6066E-06 Y 2 4.8 12.1 6.56108E-06 4.0694E-06 8.6066E-06 Y 3 5.6 17.7 9.64252E-06 9.1561E-06 6.6088E-06 N 4 4.6 22.3 1.31234E-05 1.6277E-05 6.6066E-06 N 6 7.6 29.9 1.96650E-05 3.6624E-05 6.6066E-06 N 8 6 35.9 2.62467E-05 6.511E-05 6.6086E-06 N 12 10.5 46.4 3.93701E-05 0.0001465 6.6066E-06 N 16 8.2 54.8 5.24934E-05 0.00026044 6.6066E-06 N 24 13.8 68.4 7.87402E-05 0.00058599 6.6088E-06 N 32 10.3 78,7 1.04987E-04 O,00104176 6.6066E-06 N 48 12.4 91.1 1.574BOE-04 0.00234395 6.6066E-08 N 64 5.2 96.3 2.09974E-04 0.00416703 6.6066E.06 N 96 2.8 991 3.14961E-04 0.00937582 6 6066E-06 N 128 0.4 99,5 4.19948E-04 0,01666812 6,6066E-06 N >128 0.5 100 - 6,6066E-06 N Based on theme calculations, particles 2 microns or less will discharge over the waif of Basin 4. Calculate Critical VulocljiLof Particles Flowing Through Basins 1 2 14 3 5 Worse case scenario for particles discharging off sile'occurs during peak flow conditions. Vc - Op/A Op 8 Hp are the same as with basins 1 through 4 Vc - Critical velocity in fVsec . ' Op - Peak Flow A - Average surface area of basin Crllical velocity (Vc) = 2.08E-03 111sec Retention time of particle (Rp) during peak now - Average Basin Length at Surface 1 Vc = 150'Nc Retention Time (Rp) = 72188 seconds Critical settling velocity (Vc') for particle to settle to weir (rain) = Hp/Rp Critical settling velocity (Vc') = 2,9953E-06 ltlsee Determine which solids will discharge over weir Our analysis will focus on cement particles due to Iheir small size. Cement particles are the leasl likely to settle and therefore the most likely to discharge from the site. 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 (fusee), Vp = 9(p1-p2)d'2118u Stokes Law g = gravity = 32.2 fVsec'2 d a diameter of cement particle (t) 1 micron = 3.28084E-06 fl p1 = density of cement = 94 Iblcf p2 - density of water = 62.4 Ih1cf u = viscosity of water = 0.00059B1 Ihlt-sec Source: NISTIR 6931 "Analysis of the ASTM Paund.Robin Test on Particle Size Distribtuien of Portland Cement' Phase II Settling Critical Diameter size distribution diameter (ft) Val -my; Vp Settling Discharge over (microns) � ) Velocity; VC Walr(Y1N) (117sec) 1 4.7 4.7 3.28064E-06 1.0173E-06 2.9953E-06 Y 1.5 2.6 7.3 4.92126E-06 2.289E-06 2.9953E-06 Y 2 4.8 12.1 6.56188E-06 4.0694E-OB 2.9953E-06 N 3 5.6 17.7 9.84252E-06 9.1581E-06 2.9953E-06 N 4 4.6 22.3 1.31234E-o5 1.6277E-05 2.9953E-06 N 6 7.6 29,9 i.96B50E-05 3.6624E-05 2.9953E-06 N a 6 35,9 2.62467E-05 8.511E-05 2.9953E-06 N 12 10.5 46.4 3.93701E-05 0.0001465 2.9053E-06 N 16 8.2 54.6 5.24934E-05 0.00026044 2.9953E-06 N 24 13.8 68.4 7.87402E-05 0.00056599 2,9953E-06 N 32 10.3 78.7 1.04987E-04 0.00104176 2,9953E-06 N 48 12.4 91.1 1.57480E-04 0.00234395 2,9953E.06 N 64 5.2 98,3 2.09974E-04 a00416703 2.9053E-06 N 96 2.8 99,1 3.14961E-04 0,00937582 2.9953E-06 N 128 0.4 99.5 4,19946E-04 0.01666812, 2.9953E-06 N >128 0.5 too - 2.9953E.06 N Based on these calculations, particles 1.5 microns or less will discharge from Basin S. Calculate Total Suopgrided Solids Concentration Assume particles 1.5 microns and smaller will discharge: _ Diameter Volume of Weighted Subtotal of % Total slza distribution (microns) %e Particle Volume Weighted Volume (microns) Volume 1 4.7 4.7 0.523 00246 0.0248 0.0001% 1.5 2.6 7.3 1,766 0,0459 0,0705 0,0002% 2 4.8 12.1 4.187 0.2010 0.2715 0.001 % 3 5.6 17.7 14.130 0.7913 1.0628 0.003% 4 4.6 22.3 33.493 1.54D7 2.6035 0.006% 6 7.6 29.9 113.040 8.5910 11.1945 0.028% B 6 35.9 267.947 16,0768 27,2713 0.068% 12 10.5 46.4 904.320 94,9536 122,2249 0.304% 16 8.2 54,6 2143,573 175,7730 297.9979 0.741% 24 13.6 68A 7234.560 998.3693 1296.3672 3.224% 32 10, 3 78.7 17148.587 1766, 3044 3082, 6716 7.616% 48 12.4 911 57876.480 7176,6835 10239.3551 25.461% 64 5,2 96.3 437188.693 7133,8121 17373,1672 43.201% 96 2.8 99.1 463011.840 12964.3315 30337.4987 75.438% 128 0.4 99.5 1097509.547 4390,0382 34727.5369 86,355% 128 0.5 100 1097509.547 5487.5477 402150846 100,000% 40215,0846 Particles 1.5 microns and smaller make up 7.3% of the total particles but 0.9002 % of the total volume. Since the density of all the particles is assumed the same, then particles 1.5 microns and smaller also represent approximately 0.0002% of the mass. Mass of cement washed into reclaimer 4000 lb/day Mass of cement to discharge = Mass of cement washed off trucks each day x % of mass = 0.00701 poundslday 0 6 H (fi) rnn Note: Use nomograph Tc for natural basins with well-defined channels, for overland flow on bare earth, and for mowed -grass roadside channels. For overland flow, grassed surfaces, multiply Tc by 2. For overland flow, concrete or asphalt surfaces, multiply Tc by 0.4. For concrete channels, multiply Tc by 0.2. Figure 8.03a Time of concentration of small drainage basins. T / -nin) 200 100 50 10 5 1 L r 5 8,03.4 Hydrograph Plot Hydraflow Hydrographs by Intelisolve Thursday, Jan 10 2008. 4:11 PM Hyd. No. 1 CSC Spring Lake Plant Hydrograph type = Rational Peak discharge = 17.74 cfs Storm frequency = 25 yrs Time interval = 1 min Drainage area = ' 2.150 ac Runoff coeff. = 0.95 Intensity = 8.684 inlhr Tc by User = 5.00 min OF Curve = Fayetteville, NC.IDF Asc/Rec limb fact = 111 Q (cfs) 18.00 15.00 12.00 9.00 6.00 3.00 0.00 0 -- Hyd No. 1 CSC Spring Lake Plant Hyd, No. 1 -- 25 Yr 5 Hydrograph Volume = 5,321 cult Q (cfs) 18.00 15.00 12.00 . Ea 3.00 ATTACHMENT B SCROMMEL RECLAIMER UNIT MID -ATLANTIC ASS 0CIATE S, INC. Engineering & Environmental Solurions ,o November 1 2006 SCROMMEL 2418 SPECIFICATIONS Discharge Pan: Two truck, Right, Left or Rear discharge Discharge pan capacity: 1.2 Cubic Yard Washout Stinger: Dual truck Primary Screw: 24 inch diameter x 24 feet long Secondary Screw: 18 inch diameter x 18 feet long Electrical Box: 480 volt 3-phase with motor protection, weatherproof, ( 208 volt 3 phase and 240 volt 3 phase are optional ) with Auto Start/Stop loop detector. Electric motors: Primary screw 10 HP, Secondary screw 5 HP Gearboxes: Primary screw, size 5, Secondary screw, size 4 Pump: 300+ gallons per minute Screen: Harp screen with 3/16" slots Support Legs: Optional Complete Pit Drawings: Size and concept drawings for clarification pits, drying bunkers, truck ramps, etc. Field Service and Support: Factory man will be on -site for initial start-up and to train your drivers on the operation of the SCROMMEL. Time of Delivery: Normal lead times run 8 -10 weeks. As with any product, these may vary according to demand. Firm delivery dates will be given upon receipt of down payment. Shipping: All reclaimers are shipped F. O. B. Salina, Kansas, and is the responsibility of the customer. SCROMMEL works with transportation companies and can assist in this. Payment: A 20% deposit is required prior to order acceptance. Balance is due prior to shipping. Validity of price quote: Written quotes are good for 30 days. Producers using granite or similar stone, are required to purchase abrasion resistant flighting Specifications are subject to change without notice Note: Labor and materials for pit construction, plumbing, on -site electrical and assembly are the responsibility of the purchaser. F E D c B A SCR❑MMEL RESOURCE MANAGEMENT, INC. PI�'4: I—aaD-595�-5293 DRAWN SY MICK WODKE SCALE SKLE7 ❑Vervlpx 1777 .RrgLD PVC.. K0. SOX i976, su]NA, KS 6701-91+3 rn]t 1-7B5-925-74D4 sntrsNnN BRAD BY{�UISi onTL � 7irLE ]0-04-2D07 ' 2418 STRUCTURAL DETAILS MUST BE DETERMINED BY LICENSED ENGINEER IN ACCORDA14CE WITH LOCAL CODES I C EO�'CCOWE RCTL SCRV]CC-FnTETTEV]L Lr, NC • EL 0 EL 0 EL 0 79• 70• PER[?ufETER WALL EL-1 A 79' 7 B' 66' B I r 79' 7 B' 66• EL 0 rNNER'A D 79' 78' - 17' 12, EL 0 y E 79' 713, PER 4E EL 0 F EL + I' W ALL EL+I' l2' WALL EL+I' I2' WALL EL +I WALL EL +I' WALL EL+1• "�'� •'^ m 1-70fe23-74Y4 HRAO w007 wr "u n LICCl CNGWIN N .CcmG.NfC VVH CS.r� aovc—.,. � a 1 Acre = 43,560 Sq Feet, 7,106143,560 = .1631 of an acre used for the reclaimer system 1 inch of rain, on 1 acre, assuming no absorption = 27,154 gallons .1631 x 27,154 = 4,428.81 gallons per inch of rain falling on reclaimer sy stern 24 hour/ 25 year rain event falls between 6" & 7" in your area, I used the high end 7" 7" x 4,428.81 = 31,001.67 gallons falling on reclaimer system in a 7" rain event. 7.48 gallons in a cubic foot, 31,001.671 7.48 = 4,144.60 cubic feet of storage required The 26" of freeboard in the pit system provides 8,549 cubic feet of storage. The upper 12" of the freeboard in the pit system will hold 4,383 cubic feet. 8,549 - 4383 = 4,166 cubic feet of storage below the 12" freeboard to hold 4,144.60 cubic feet of rain from a 7" rain event. Once again, thank you for your patience, we appreciate your business. Sincerely, Brad Byquist SCROMMEL Reclaimers Attachments: ❑ Text version of this message. (1KB) IJ PROFILE510-04-07 Model (1).pdf (280KB) OverviewR10-04-07 Model (1).pdf (317KB) Previous Next httn://mnil.favblock.com/cgi-bin/inbox.exe?id=OI 7d738b8f8a848ca7488fd89d4ebb5OOfI ... I 0/26/2007 MID -ATLANTIC ASS 0CIATE S,INC. Engineering & Environmental Solutions 409 Rogers View Court !Raleigh /North Camlina /27610 800-486-75M / 919-250- 9918 / 919-250-9950 Facsimile 11'WIV. 1ta10111ine. com January 11, 2008 Mr. Ken Pickle North Carolina Department of Environment and Natural Resources Division of Water Quality Stormwater and General Permits Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Subject: RESPONSE TO RETURN OF NCG140000 NOI #1166 AND RE -SUBMITTAL OF NOTICE OF INTENT CONCRETE SERVICE COMPANY, INC. WEST MANCHESTER ROAD SPRING LAKE, NORTH CAROLINA MID -ATLANTIC PROJECT NO.000R1944.00 Dear Mr. Pickle: RECEIVED JAN I r 2008 BY: P.&LY This letter serves as a response to your December 7, 2007 letter and as a cover letter for the re - submittal of the Notice of Intent for the above site to be covered under general stormwater permit NCG140000. Please note that the submittal has been revised to address the comments outlined in your December 7, 2007 letter. For ease of review, we have addressed each comment below in the order in which they were presented. 1. Site Plan a. The property linestproject boundaries have been added to the drawing. b. The drainage areas have been delineated on the drawing. c. The locations of outfalls have been noted on the drawing. d. The limits of the aggregate storage areas have been noted on the drawing. Drainage from all aggregate storage areas is designed to flow into the pond. e. There are no industrial activities associated with Drainage Area 2 as this area only includes the site offices. The only outfall associated with Drainage Area 1 is the discharge from the pond. f. All conveyance features are shown on the drawing. 2. Design Notes and Design Details a. The soils report has been removed from the re -submittal. Although we expect the basin to provide some infiltration of water, we have demonstrated compliance with permit limits through other means. The calculations presented in Attachment A demonstrate discharge compliance with total suspended solids (TSS) limits and a Fortrans pH adjustment unit (Model 5000-S or .5000-SK) will be used to adjust the pH in the pond. b. The pH test result has been removed from the re -submittal. c. The large basin noted in your letter is actually two basins. The first basin is a temporary sediment basin to be removed after construction. After construction the site will use one large pond to settle solids. The attached drawing depicts the configuration after construction with the temporary sediment basin removed. Response to Return of NCG 140000 NO/ # 1166 Concrete Service Company, Inc. West Manchester Road Spring Lake, North Carolina January 11, 2008 Page 2 There will be no need to empty the basin as discharges will be within permit limits. d. The locations of the drum wash out area, truck wash area, aggregate piles, and plant wash down area have been noted on the drawing. Wastewater generated in these areas flows into the pond. e. The correct configuration of the reclaimer system has been noted on the drawing and details included in Attachment B. f. If some groundwater leaches into the basin(s) it should not be a problem since our compliance calculations (Attachment A) are based on a worst case scenario of the basin being at capacity when the 25 year124 hour storm occurs. g. The fogging water used to irrigate the aggregate stockpile will be well water. We appreciate the opportunity to submit this additional information. If you have any questions or need additional information, please do not hesitate to call us at 250-9918. Sincerely, MID- TLANT C ASSOCIATES, INC. 6fig��' Darin M. McClure, PE Principal Engineer Attachment: Notice of Intent Attachment A — Calculations Attachment B — Scrommel Reclaimer System Drawing cc: Mr. Lanny Clark, Concrete Service Company, Inc. Mrs. Adriana Hegeman, Crawford Design Company 1944.00/12-28-07/Response to Additional Info RequesbDMM/aso MID -ATLANTIC ASSOCIATES INC. Engineering & Environmental solulions NOTICE OF INTENT w ej�j 4 �� Division of Water Quality / Surface Water Protection NCDENRNational Pollutant Discharge Elimination System NCG 140000 NOTICE OF INTENT National Pollutant Discharge Elimination System application for coverage under General Permit NCG140000: STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as: SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete For new plant sites that will discharge or recycle process wastewater (even if commingled with stormwater): This NO[ is also an APPLICATION FOR Authorization to Construct (ATC) wastewater treatment facilities. ATC requests must be submitted at least 90 days prior to construction'. For existing plant sites discharging or recycling process wastewater (even M commingled with stormwater): This NOI Is also an APPLICATION FOR Authorization to continue to operate wastewater treatment facilities in place. Construction, modification, or installation of any new treatment components' at an existing site requires an ATC. Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures treating process wastewater flows commingled with stormwater) require an ATC prior to construction per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the same time as the Certificate of Coverage (COC) for the NCG14 permit. Design of treatment facilities must comply with requirements of 15A NCAC 2H .0138 & .0139. Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant sites requires submission of three (3) sets of plans and specifications signed and sealed by a Professional Engineer. (P.E.) or qualified staff2 along with this application. A copy of the design calculations should be included. Please see questions 14 & 15. 1 �r For questions, please contact the DWO Regional Office for your area. (See page 5) (Please print or type) 1) Mailing address of owner/operator (address to which all_permit correspondence will be mailed): Name Richard R. Allen Sr. Street Address P.O. Drawer 1867 _ City Fayetteville State NC ZIP Code 28302 Telephone No. 910 323-8509 Fax: (910) 323-9319 2) Location of facility producing discharge: Facility Name Concrete Service Company _ Facility Contact Lanny H. Clark,: Street Address w. Manchester Road City spring Lake State NC ZIP Code 28390 County Cumberland Telephone No. (910) 483-0396 Fax: (910) 486-6724 Page 1 of 5 rAs per 15A NCAC 2H .0106 7Unless treatment facilities are designed, constructed, and put n r 'oF .,.ejnVyE B Ir al to the company who are qualified to perform such work for their respective companies in accordant a with General Statutes, 69C-25 ( ), plans and specifications must be signed and sealed by a P.E. JH I h N 1 1 1 2008 SWU-229-091007 Last revised 09/10/07 BY:P�_ NCG140000 N.O.I. Travel N on NC Hwy 87 (N. Bragg Blvd.) from downtown Spring 3) Physical location information: Lake toward Sanford, NC. Make left turn onto W. Manchester Rd. Subject propetty is approx. 0.52 miles on left hand side. Please provide a narrative description of how to get to the facility (use street names, state road numbers, and distance and direction from a roadway intersection). (A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application.) 4) Latitude 35011 ' 24. 36" Longitude 78059' 41 .64" (deg, min, sec) 5) This NPDES Permit Application applies to which of the following: ® New or Proposed Facility ❑ Existing 6) Standard Industrial Classification: Date operation is to begin 02/28/08 Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial activity at this facility SIC Code: 3 2 7 3' 7) Provide a brief description of the types of industrial activities and products produced at this facility: (Include a site diagram showing the process areas present at this facility.) Read Mix concrete plant, industrial activities include concrete reclaination, truck wash, stockpile irrigation and plant -wash down. 8) Discharge points / Receiving waters: How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the property? One What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater and/or wastewater discharges end up in? Little River If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm sewer system (e.g. City of Raleigh municipal storm sewer). No Receiving water classification (if known): Note: Discharge of process wastewater to receiving waters classified as WS-11 to WS-V or SA must be approved by the N.C. Dept. of Environmental Health. If DEH does not approve, coverage under NCG140000 cannot be granted. No new discharges of process wastewater are permitted in receiving waters classified as WS-I or freshwater ORW. 9) Does this facility have any other NPDES permits? ® No ❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility: 10) Does this facility have any Non -Discharge permits (ex: recycle permits)? R] No ❑ Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility: 11) Does this facility employ any best management practices for stormwater control? 0 No ® Yes It yes, please briefly describe: General good housekeeping and a concrete reclaimation system, stormwater ►pond and vH adjustment unit desictned to treat stormwater. Page 2 of 5 SWU-229.091007 Last revised 09/07/2007 NCG140000 N.O.I. 12) Does this facility have a Stormwater Pollution Prevention Plan? ❑ No KI Yes If yes, when was it implemented? After construction is complete. 13) Are vehicle maintenance activities occurring or planned at this facility? ® No ❑ Yes Wastewater Treatment Design Information 14) Are discharges occurring or planned from any of the following process wastewater generating activities? Vehicle and equipment cleaning n Yes ❑ No Wetting of raw material stockpiles IRK] Yes ❑ No Mixing drum cleaning ® Yes ❑ No If yes to any of the above, please describe the type of process used to treat and/or recycle the process wastewater. Use of a reclaimation system, stormwater detention pond and pH adjustment IVAIV_-�l For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/I, and Settleable Solids (SS) — 5 mill.) [Use separate sheet(s)]. It all these discharges are recycled, please refer to Question 15. For plants that recycle and/or discharge erocess wastewater. When applying for this permit, you are also applying for an authorization to construct (new treatment facilities) or authorization to continue to operate (existing treatment facilities) as part of the NOI. For new sites, you must submit three (3) sets of design plans and specifications with this application and provide supporting calculations that predict compliance of final discharge with permit limits. For existing sites, applicants should submit three (3) sets of plans and specs for facilities as -built and provide as many design details as possible, or submit a detailed diagram of treatment systems in place that Includes information such as tank volumes, dimensions, retention time, piping, settling basin details, etc. Please note: if new treatment systems are planned for an existing site, an A TC will be required prior to construction of those facilities. Plans/specs/calculations prepared, by a P.E. and the request for an ATC may be submitted with this NOI, or separately at a later date. DWO may request the status of your plans for requesting an ATC upon issuance of the COC. 15) Does the facility use or plan to use a recycle system? ® No ❑ Yes If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr) year, 24-hr rainfall event For a recycle system (regardless of when it overflows), please provide plans, calculations, and design specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of freeboard in design storm event, etc.). [Use separate sheet(s)]. For a sufficient application, the information must demonstrate compliance of final discharge with permit i � effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS) — 5 ml/1), or' must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr rainfall event plus one foot of freeboard under design operating conditions. Page 3 of 5 5WU-229-091007 last revised 09/07/2007 NCG140000 N.O.I. 16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain? ® No ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.) 17) Hazardous Waste: a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility? ® No ❑ Yes b) Is this facility a Small Quantity Generator (less than 1000 kg, of hazardous waste generated per month) -of hazardous waste? ® No ❑ Yes c) Is this facility a Large Quantity Generator (1000 kg. or.more of hazardous waste generated per month) of hazardous waste? ® No ❑ Yes d) If you answered yes to questions b. or c., please provide the following information: Type(s) of waste: NA How is material stored: Where is material stored: How many disposal shipments per year: Name of transport 1 disposal vendor: Vendor address: 18) Certification: North Carolina General Statute 143-215.6 B(i) provides that: Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsities, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the [Environmental Management) Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed ten thousand dollars ($10,000). I hereby request coverage under the referenced General Permit. I understand that coverage under this permit will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an individual permit. I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such information is true, complete, and accurate. Printed NameAf�f Person Signing: Ztl�� r " - Title: 4*,It)4v1rA�A.,ol1a� - - - (Signature of (Date Signed) Notice of Intent must be accompanied by a check or money order for $100.00 made payable to: NCDENR Page 4 of 5 SWU-229-091007 Last revised 09YO712007 -. 4 NCG140000 N.O.I. Final Checklist This application will be returned as incomplete unless all of the following items have been included: ❑ Check for $100 made payable to NCDENR. ❑ This completed application and all supporting documentation (including design details and calculations for treatment systems). VK3,_ElIf an Erosion & Sedimentation Control (E&SC) Plan is required from Division of Land Resources (DLR) or local designee: documentation verifying applicant has developed and submitted that Plan to the governing agency (required per 15A NCAC 02H .0138). ❑ For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and i specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7). ❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including 1 recycle systems) as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a detailed diagram of treatment systems in place that includes information such as lank volumes, dimensions, retention time, piping, settling basin details, etc. ❑ A site map showing, at a minimum, (existing or proposed): (a) outline of drainage areas, (b) stormwaterlwastewater treatment structures, (c) location of stormwaterlwastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures, (e) areas where materials are stored, (1) impervious areas, and (g) site property lines. ❑ A county map or USGS quad sheet with location of facility clearly marked. Mail the entire package to: Stormwater Permitting Unit Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Note The submission of this document does not guarantee the issuance of an NPDES permit. For questions, please contact the DWQ Regional Office for your area. DWO Regional Office Contact Information: Asheville Office ...... (828) 296-4500 Fayetteville Office ... (910) 433-3300 Mooresville Office ... (704) 663-1699 Raleigh Office ........ (919) 791-4200 Washington Office ...(252) 946-6481 Wilmington Office ... (910) 796-7215 Winston-Salem ...... (336) 771-5000 Central Office .........(919) 733-5083 Page 5 of 5 SWU-229-091007 Last revised 09/07/2007 a REFERENCES: 1. OVERHILLS, NC AND MANCHESTER, NC DIGITAL RASTER GRAPHIC FILES, SCALE: 1:24,000 US GEOLOGICAL SURVEY. SCANNED FROM 1:24,000-SCALE USGS TOPOGRAPHIC MAPS (OVERHILLS, NC, 1957 PHOTOREVISEO 1971, AND MANCHESTER, NC, 1997). Feet 2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION a �,d�� 2,(}(}� 4,afl� ATLAS, BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, D.C. DRAWN Cq$ DATE: TOPOGRAPHIC SITE MAP BY: C�Ti JANUARY 2008 DRAFT CHECK: JOB NO: 00OR1944.00 "D-ATLANTIC CONCRETE SERVICE COMPANY S S_O_C I A T E S. INC.WEST — MANCHESTER ROAD ENG. GIS NO: Engineering & Environmental solutions SPRING LAKE, NORTH CAROLINA CHECK: 01G-R1944,00-1 APPROVAL.: IDWG NO: ATTACHMENT A CALCULATIONS MID -ATLANTIC ASSOCIATES, INC engineering & Envirnnn2enfal Solutions P 4e CSC - Spring take Plant Calculations - Job No. OOOR1944.00 Process Wastewater Generated vs. Water Used at the Site fThroughputfWater Balance) Average work day to hours Wash water produced = 2 gaVCY (Truck and plant washdown) Capacity of plant 300 CYlday Wash water per day = 600 gallons Plant Washdown - 10 minutes/day at 1 gallon a 0,133681 cl 30 GPM = 300 gallons per day Wash water per day = 80 cf Truck wash - 30 loads per day with 20 second wash per load at 30 GPM - 300 gallons per day Water/cu. Yd. Total wash water = 600 GPD1300 CYD = 2 gaVCY Of Concrete = 25 gallons Water Use/Day = 7.500 gallons Water needs exceed amount of wastewater produced each day. Pond Characteristics Length from entry to wier (Ft.) 190 Surface Area of Basin 1 when full (Sq. FL) 19497 Analysis below assumes pond is full when the 25-year storm occurs. The 25-year storm veil produce a peak runoff rate into the system. By calculating settling times based on the peak runoff rate, we are assuming a worst case scenario. Note: Table references below are taken from Erosion and Sediment Control Planning and Design Manual by the NC Sedimentation Control Commission, the NC Department of Environment and Natural Resources, and the NCI; Agricultural Extension Service. Determination of Peak Runoff Rate Using the Rational method Q=CIA Given: Drainage area (acres) 2,15 Maximum slope length (Ft.) 340 Vertical Drop (Ft.) 2 Average Slope (% foot per foot) 0.59% Location (Table 8,03c) Fayetteville, NC Find: Peak runoff rate from 25-year frequency storm Solution: (1) Drainage area: 2.15 (2) Determine runoff coefficient. C. 0.951 Plant site consists of concrete surfaces Note: Tc calculated from "Time of concentration of small drainage basins graph" attached, C value for concrete surfaces (Table 8,03b) Te = 2 minutes Refer to Table 8.03c Inlesity Duration Frequency - Fayettevilte, NC (since Tc<5, use intesity value for 5 min. ARI) 25 year storm with a 5 minute duration is 8.94 incheslhour - This number (8.94 inchesthour) is a conservative number and will be used for intensity factor, L Calculata Peek Runoff for Site Calculate the peak runoff al the drainage area that occurs during a particular design Storm event. Qp a CiA Op - peak rate of runofl in cubit feet per second (cfs) C = coeffcienl of runoff I - intensity of rainfan in inches per hour A = drainage area in acres Coefficient of runoff; C = Rainfall intensity; i Drainage Area = Peak Runoff; Op = Runoff Volume Calculate Discharge Characteristics from Pond Weir Length = Calculate depth of Flow Over the Discharge Wei H = [0)(3.1-L)1"0.6867 H = depth of flow over weir in feet Q = Flow in cfs L - length of weir During rain event Qp = Hp= 0.95 8.94 incheslhour 25 year slorm 2,15 acres 18.26 cts 6J21.00 of (See Hydrograph) 39800.40 gallons 150667.23 liters Off Francis formula 18,26 cfs 0.815 ft 'From EBSC manual (Fayetteville) Calculate Critical Velocity of Particles In Basin i During Peak Flow Worse case scenario For particles discharging off site occurs during peak flow conditions. Vc - QplA Vc - Critical velocity in fllsec Op - Peak Flow A = Average surface area of basin Critical velocity NO = 0.00093655 ft/sec Retention time of particle (Rp) during peak flow = Average Basin Length at Surface ! Vc - 190'Nc Retention Time (Rp) = 202872 seconds Critical sealing velocity (Ve') for particle to settle to weir (rain) - Hp/Rp Critical sallling velocity (Vc') - 4.0192E-08 ft/sec Determine which solids will discharge oygr weir Our analysis unit focus on cement panicles due to their small size. Cement particles are the least likely to settle and therefore the most likely to discharge from the Bile. Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc' ? Vp, then the$* solids will discharge over the weir. Formula for Calculating Particle Settling Velocity (Vp): Particle Settling Velocity (ftlsec), Vp = g(pl-p2)d'2118u Stokes Law g - gravity = 32.2 f /sec'2 d - diameter of cement particle (a) 1 micron = 3.28084E-OB ft pl -density of cement 94 ford p2 = density of water = 62,4 Iblcf u - viscosity of water 0.0005981 Iblfl-sec Source: NISTIR 6931 'Analysis of the ASTM Round -Rabin Test on Panicle Size Disiribtulon of Portland Cement: Phase II Settling critical Diameter size distribution %e diameter (ft) Velocity; Vp Settling Discharge over (microns) Velocity;VO Weir (YIN) -- - - - -- -- (Neat) Inset) 1 4.7 4.7 3.28084E-06 1,0173E-06 4.0192E-06 Y 1.5 2.8 7.3 4.92126E-06 2.289E-06 4.0192E-06 Y 2 4.8 12.1 6.56168E-06 4,0694E-06 4.0192E-OB N 3 5.6 17.7 9,84252E-06 9.1581E-06 4.0192E-06 N 4 4.6 22.3 1.31234E-05 1.6277E-05 4.0192E-06 N 6 7,8 29.9 1.96850E-05 3.6624E-05 4.0192E-06 N 8 6 35.9 2.62467E-05 6.511E-05 4.0192E-06 N 12 10.5 46,4 3.93701E-05 00001465 4.0192E-06 N 16 8.2 54,6 5.24934E-05 0.00026044 4.0192E-06 N 24 13 8 68.4 7.87402E-05 0.00058599 4.0192E-06 N 32 10.3 78.7 1.04987E-04 0.00104176 4.0192E•06 N 48 12.4 91.1 1.57480E•04 0,00234395 4.0192E-D6 N 64 5.2 96.3 2.09974E-04 0,00416703 4-0192E-06 N 96 2.8 99.1 3.14961E-04 0,00937582 4.0192E-06 N 128 0.4 99.5 4.1994BE-04 0,01666012 4.0192E-08 N >128 0.5 100 - 4.0192E-06 N Based on these calculations, particles 1.5 microns and smaller will discharge over the weir. Calculate Total Suspended Solids Concentration Assume particles 1.5 microns and smaller will discharge Volume of Subtotal of alze distribution %4 Particle weighted Weighted %Diameter Total (microns) (microns) Volume Volume Volume V 1 4.7 4.7 0.523 0.0246 0.0246 _ 0,0001% 1.5 2.6 7.3 1.766 0,0459 0,0705 0.0002% 2 4.8 12.1 4.187 0.2010 0.2716 0.001 % 3 5.6 17.7 14.130 0.7913 1.0626 6.003% 4 4.6 22.3 33.493 1.5407 2.6035 0 006% 6 7.6 29.9 113.040 8.5910 11.1945 0.028% 8 6 35.9 267.947 16.0788 27.2713 0.068% 12 10.5 46,4 904.320 94,9538 122.2249 0.3D4% 16 8.2 54,6 2143,573 175,7730 297,9979 0.741% 24 13.8 88A 7234.560 998,3893 1296,3672 3.224% 32 10.3 78.7 17148.587 1766.3044 3062,8716 7,616% 48 12.4 91.1 57876,460 7178,6835 10239.3551 25.461% 64 5.2 98,3 137188.693 7133.8121 17373.1672 43.201% 96 2.8 99A 40011,840 12964.3315 30337.4987 75.438% 128 OA 99,5 1097509.547 4390.0382 34727.5369 86.355% 128 0,5 100 10975D9,547 5487,5477 40215.0846 100,000% 40215.0846 Particles 1.5 microns and smaller make up 7.3% of the total particles but 0.0002 % of the total volume. Since the density of all the particles Is assumed the same, then particlea 1.5 microns and smaller also represent approximately 0.0002%of the mess. Estimated amount of cement from reclaimer I tblday See reclaimer calculations Estimated amount of cement washed from under plans 40 Iblday Estimated amount of cement washed off each truck 1 I IbICY Estimated amount of cement washed off each truck 300 lb/day Mass of cement discharged to pond 341 Idlday Mass of cement to discharge = Mass of cement discharged to pond each day x % of mass = 0.0006 pounds = 271.23 mg Total Suspended Solids of Discharge (TSS) - Mass of cement (mg) l Volume of Storm Runoff (Liters) TSS = 271,2349248 1 150667.23 Anticipated TSS (mg/Q = 0.0018 mg1L Maximum TSS (mglL) - 30 mg1L Calculate settleable solids discha►ao Methodology for Seltabie 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 mVL. The following table calculates the time for particles to settle 1", 6" and 14". ... Settling Velocity 1" Settling a" Settling 14" Setting Diameter (microns) (Ns.) Time Time (minutes) Time (minutes) _ {minutes) - _ 1 1,01734E-06 1365,21 8191.28 19113.00 1.5 2.28902E-06 606.76 3640.57 8494.67 2 4.06937E-OB 341,30 2047.112 4778.25 3 9.15607E-06 151,69 910,14 2123.67 4 1.62775E-05 85,33 511,96 1194.56 6 3.66243E-05 37.92 227.54 530.92 From calculations above, particles 1,5 microns and smaller will lake longer than 60•minules to settle only 6. Anticipated Settleablo Solids - 0 M111- Maximum allowable Settleable Solids = 5 mill. pN Analysis A Fortrans pH control system (or equtvalenl) will be installed at the discharge point of pond CSC -Spring Lake Plant Reelaimer Caleulations -Job No. 19M.00 Process Wastewater Entering Reclainer System Trucks washed out per day = 6 Gallonshruck washout 200 gallons Cement/CY of mix = 50D pounds CY of washout per truck = 1 CYlday Wash water per day = 1600 gallons Water discharged into reclaimer per day t gallon - 0.133681 cf Wash water per day - 214 cf Cement per day = 40M pounds Cement discharged into reclaimer per day Calculate average flow of water entering system, This assume that concrete is continuing to be reclaimed during the 25-year124-hour storm. Average Bow through velocity = 30.tx} gpm Hose now velocity. = 3.74 cis Surface Area of Reclalmer Pit Area for Settlement Calculations (Worst Case Scenariol Basin 1 h Length of weir x width of basin (12' x 12') Basin 1 ft 26' x 12' Basin 3 M58B ft 26' x 12' Basin 4 ft 37' x 12' Basin 5 ft 49' x 12' Calculate, Discharge Characteristics from Basin 1 Weir Length = 12 tt Calculate depth of Flow Over the Dlscharae Walr H = 1043,1'L)]"0.6667 Francis formula H = depth of now over weir in feet Q = flow in cfs L - length of weir Qp = 3.74 cis Hp = 0.216 ft Calculate Critical Velocity of Particles In Basin_? During Peak _F_low Worse case scenario for particles discharging off site occurs during peak Bow conditions. Vc - Qp/A Vc - Critical velocity in ft/sec Op - Peak Flow A - Average surface area of basin Critical velocity (Vc) = 0,02597394 Mac Retention time of particle (Rp) during peak Bow = Average Basin Length at Surface ! Vc = 12'Nc Retention Time (Rp) - 462 seconds Critical settling velocity (Vc') for particle to settle to weir (rain) - Hp,/Rp Critical settling velocity (Vc') = 0.00040802 fUsec Determine which solids will dlscharoe over weir Our analysis will focus on cement particles due to their small size. Cement partiCies are the least likely 10 settle and therefore the most likely to discharge from the site. Calculate particle settling velocity (Vp) and compare it to Vc'. !f Vc' > Vp, then those solids will discharge over the weir. Formula for Calculating Particle Settling VeEocity (Vp): Particle Settling Velocity (fUsec), Vp = g(p1-p2)d*211 Bu Stokes Law g - gravity = 32.2 ftlsec'2 d - diameter of cement particle (h) 1 micron = 3.28084E-06 If p1 = density of cement = 94 Ibfcf p2 = density of water = 62.4 Ib1d u = viscosity of water = 0.0005981 Ib/fl-sec t Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Panicle Size Dlsiffhtuion of Portland Cement: Phase II ---- -------- - Settling Critical Diameter size disMbutlon Xe diameter O 11 Veloclty; Vp Settling Discharge over {microns) (ftlaac) Velocity; VC Weir (YIN) 1 4.7 4.7 3.28084E-06 1.0173E-06 4,6B02E-04 Y 1.5 2.6 7.3 4.92128E-06 2,289E-06 4.6802E-04 Y 2 4.8 12.1 6.56168E-06 4.0694E-06 4.6802E-04 Y 3 5.6 17.7 9.84252E-OB 9.1561E-06 4.6802E-04 Y 4 4.6 22.3 1.31234E-05 1.6277E-05 4.6802E-04 Y 6 7.6 29.9 1,96850E-05 3.6624E-05 4,8802E-04 Y . 8 6 35.9. 2.62467E-05 6.511E-05 4.6802E-04 Y 12 10.5 46,4 3.93701E-05 0,0001465 4.6802E-04 Y 16 8.2 54.6 5,24934E-05 0.00026044 4.6802E-04 Y 24 13,8 68,4 7.87402E-05 0,00058599 4.8802E-04 N 32 10,3 78.7 1.04987E-04 0,00104176 4.6802E-04 N 48 12.4 91.1 1.57480E-04 0,D0234395 4.6802E-04 N 64 5.2 96.3 2.09974E-04 0,00416703 4,6602E-04 N 96 2.8 99.1 3.14961E-04 0,00937582 4.6802E-04 N 128 0.4 99.5 4.19948E-04 0,01666812 4.6802E-04 N >128 0.5 100 - 4.6802E-04 N Based on these calculations, particles t8 microns or less will discharge over the weir. Calculate Discharge Characteristics from Basin 2 Weir Length a 12 ti Calculate death of Flaw Over the Discharge Weir H = (Q!(3.1'L)]^0,6667 Francis formula H = depth of flow over weir in feel Q =flow in cis L - length of weir Qp = 3.74 cis Hp = 0.218 ft Calculate Critical Volocl of Particles Flowing Through Basins t R 2 Worse case scenario for particles discharging off site occurs during peak flow conditions. Vc = Qp1A Vc = Critical velocity in fVsec Op - Peak Flow A - Average surface area of basin Critical velocity (Vc) - 0,0082023 ftlsec Retention lime of particle (Rp) during peak flow - Average Basin Length at Surface 1 Vc = 38'Nc Retention Time (Rp) = 4633 seconds Critical settling velocity (VC) for particle to settle to weir (rain) = Hp/Rp Critical settling velocity (VC) = 4.6872E-05 fVsec Dotarmine which solids will discharge over weir Our analysis will focus on Cement panicles due 10 their small size. Cement particles are the least likely to settle and therefore the most likely to discharge from the site. 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): Panicie Settling Velocity (ftlsec), Vp - g(p1-p2)d'211Bu Stokes Law 9 = gravity a 32.2 ttlsec'2 d = diameter of cement particle (fl) 1 micron - 3.28084E-06 ft p1 - density of cement 94 ItVcf p2 - density of water 62.4 Ihlcf u = viscosity of water a 0.0005981 Iblff-soc Source: NISTIR 6931 "Analysis of the ASTM Round -Rabin Test on Particle Size Disiribtuion of Portland Cement: Phase 11 .Settling Critical Diameter size dlatributlon Xc diameter (h) Velocity; vp ' Settling Discharge over Imlcrons} (rt/sec) velocity; Vc, Weir (YIN) (fVsec) 1 4.7 4.7 3.28084E-06 1.0173E-06 4.6672E-05 Y 1.5 2.6 7.3 4.92126E-06 2.2139E-013 4.6672E-05 Y 2 4.8 12,1 6.5616BE-06 4.0694E-06 4.6672E-05 Y 3 5,6 17.7 9.84252E-06 9.1581E-06 4.6672E-05 Y 4 4.6 22.3 1.31234E-05 1.6277E-05 4.6672E-05 Y 6 T6 29.9 1.96850E-05 3.6624E-05 4,6672E-05 Y B 6 35.9 2.62467E-05 6.511E-05 4.6672E-05 N 12 10.5 48.4 3.93701E,05 00001465 4.6672E-05 N 16 8,2 54.6 5,24934E-05 0.00026N4 4.6872E-05 N 24 13,0 68,4 7.87402E-05 0 00058599 4.6672E-05 N 32 10.3 78.7 1.04987E-04 0.00104176 4.6672E-05 N 48 12.4 91.1 1.57480E-04 0.00234395 4.6612E-05 N 64 5,2 96.3 2.09974E-04 0.00416703 4.6672E-05 N 96 2.8 99.1 3.14961E-04 000937582 4.6872E-05 N 128 0.4 99.5 4.19948E-04 0.01B66812 4.6672E-05 N >128 0.5 100 - 4.6672E-05 N Based on these calculations, particles 6 microns or less will discharge over the weir of Basin 2, Calculate Discharge Characteristics from Basin 3 Weir Length = 12 ft Calculate depth of Flow Over the Discherao We[r H = (QI(3A'L))A0.6667 Francis formula H - depth of flow over weir in feet O = flow in cis I. - length of weir Qp o 3.74 cis Hp- 0.216 M Calculate Critical Veloclty of Particles Flowlna Through Basins 1, 2 R 3 Worse case scenario for particles discharging off site occurs during peak flow conditions. Vc = Qp1A Vc = Critical velocity in fVsec Op - Peak Flow A = Average surface area of basin Critical velocity (Vc) = 0,00487011 fVsec Retention lime of particle (Rp) during peak now -Average Basin Length al Surface 1 Vc = 64'Ne Retention Time (Rp) = 13141 seconds Critical setlGng velocity (Vc') for particle to settle to weir (rain) - HpIRp Critical settling velocity (Vc') - 1.8454E-05 fVsec Dolormi a which solids will dlscha a over weir Our analysis will focus on cement particles due to their &malt size. Cement particles are the least likely to settle and therefore the most likely to discharge from the silo. Calculate particle settling velocity (Vp) and compare it 10 Vc'. If Vc' > Vp, then those solids will discharge over the weir. Formula for Calculating Partide Settling Velocity (Vp): Partide Settling Voloaty lit/sec), Vp . g(pt-p2)d'2118u Stokes Law 9 = gravity = 32.2 tVsec'2 d - diameter of cement particle (h) 1 micron = 3.28084E-06 it p1 = density of cement = 94 Ib/cl p2 = density of water 62.4 Iblcl u = viscosity of wafer = 0.0005981 Iblfl-sec Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test an Particle Size Distribtuion of Portland Cement Phase II SuIttling Critical Diameter size distribution %< diameter iR) Velocity; Vp settling Discharge over {microns) Velocity; Vc* Weir (YIN) P-11 tNa_ecl 1 4.7 4.7 3.28084E-06 1,0173E-06 1.6454E-05 _ Y 1.5 2.6 7.3 4.92126E-06 2.289E-06 1.6454E-05 Y 2 4.8 12.1 6.56166E-06 4.0694E-06 1.6454E-05 Y 3 5.6 17.7 9.84252E-06 9.1561E-06 1.6454E-05 Y 4 4.6 22.3 1.31234E-05 1.6277E-05 1.6454E-05 Y 6 7.6 29,9 1.96850E-05 3,6624E-05 1.6454E-05 N 8 6 35.9 2.62467E-05 6.511E-05 t.6454E-05 N 12 10.5 46.4 3.93701E-05 0,0001465 1.6454E-05 N 16 8.2 54,6 5.24934E-05 0,00026044 1.6454E-05 N 24 13.8 68,4 7.87402E-05 0,00058599 1,6454E-05 N 32 10.3 78.7 1,04987E-04 0,00104176 1.6454E-05 N 48 12.4 91.1 1,57480E-04 0.00234395 1.6454E-05 N 64 5.2 96.3 2.09974E-04 0.00416703 1.6454E-05 N 96 2.8 99.1 3.14961E-04 0.00937582 1.6454E-05 N 128 0.4 99.5 4.19946E-04 0.01666812 1.6454E-05 N -128 0.5 100 -- 1.6454E-05 N Based on these calculations, particles 4 microns or less will discharge over the weir of Basin 3. Calculate Critical Velocity of Particles Flowina Throuuh Basins 1. 2. 3 6 4 Worse case scenario for particles discharging off site occurs during peak now conditions. Vc = OpIA Op 8 Hp are the same as with basins t through 3 VC = Critical velocity in fVsec Op = Peak Flow A = Average surface area of basin Critical velocity (Vc) - 3.09E-03 Nsec Retention lime of partide (Rp) during peak flow = Average Basin length at Surface I Vc - 101'Nc Retention Time (Rp) = 32728 seconds Critical settling velocity (Vc') for particle to seille to weir (rain) = Hp/Rp Critical settling velocity (Vc') = 6.6066E-D6 fUsec Determine which solids will diachertle over weir Our analysis will focus on Cement particles due to their small size. Cement particles are the least likely to settle and therefore the most likely to discharge from the site. 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 = g(p1-p2)d'2l18u Stokes Law 9' gravity = 32.2 (Usec'2 d = diameter of cement particle (II) 1 micron = 3,28084E-06 fl pl = density of cement = 94 Iblcf p2 = density of water = 62.4 Ib/cf u - viscosity of water = 0.0005981 Ibltt-sec Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Panicle Size Distnbtuion of Portland Cement: Phase il _ Settling Crmcal Diameter size distribution %C diameter (R) Velocity; Vp $tinting Discharge over (microns) (fuses) velocity; We Weir (YIN) Nsec 1 43 4.7 3,28084E-06 1.0173E-06 6.6066E-06 Y 1.5 2.6 7.3 4.92126E-06 2.269E-06 6.6066E-06 Y 2 4.8 12.1 6.5616BE-08 4.0694E-06 6.6086E-06 Y 3 5,6 17.7 9.84252E-06 9.1561E-06 6.6066E-06 N 4 4.6 22,3 1.31234E-05 1.6277E-05 6.6066E-06 N 6 7.6 29.9 1.98850E-05 3.6624E-05 6.6086E-06 N B 6 35.9 2.62467E-05 6.511E-05 6.6066E-06 N 12 10.5 46.4 3.93701E-05 0.0001465 6.6066E-06 N 16 8.2 54,6 5.24934E-05 0.00026044 6,6086E-06 N 24 13.8 68.4 7.87402E-05 0.00058599 6.6068E-06 N 32 10,3 78.7 1,04987E-04 0.00104176 6.6066E-06 48 12.4 91.1 1.57480E-04 0.00234395 6,8066E-06 64 5.2 96.3 2.09974E-04 0.00416703 6.6066E-06 96 2.8 99.1 3.14961E-04 0.00937582 6.6066E-06 128 0.4 99.5 4.19948E-04 0,01666812 6.6066E-06 >128 0.5 100 - 6.6066E-06 Based on these calculations, particles 2 microns or less will discharge over the weir of Basin 4. Calculate Critical Velocity of Particles Flowing Throuoh Basins 1.2. 3.4 ✓R 5 Worse case scenario for partides discharging off sile'occurs during peak flow conditions Vc - OP1A Op 8 Hp are the some as with basins 1 through 4 Vc - Critical velocity in it/sec 0p = Peak Flow A = Average surface area of basin Critical Velocity (Vc) = 2.08E-03 fusee Retention time of particle (Rp) during peak flow G Average Basin Length at Surface I VC - 150'Nc Retention Time (Rp) = 72188 seconds Critical settling velocity (Vc') for -particle to settle to weir (rain) - HplRp Critical settling velocity (Vc*) - 2.9953E-06 f /soc Determine which solids will discharge over will Our analysis will focus on cement particles due to their small size. Cement particles are the least likely to settle and therefore the most likely to discharge from the silo - 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 (Nsec), Vp = 9(pl-p2)d'2I18u Stokes Law g - gravity 32.2 fUsec'2 d - diameter of cement panicle (h) 1 micron 3.28084E-06 8 pl - density of cement a 94 Ibld p2 = density of water 62.4 Iblcf u - viscosity of water a 0.0005981 Iblh-sec Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Particle Size Distribluion o1 . --- Ponfand Cement. Phase II Settling Critical Diameter size distribution %c diameter (It) Velocity: VP Bathing Discharge over (microns) (IVsec) Velocity;Ve Weir (YIN) (fVsec) 1 4.7 4,7 3.28084E- _. t76 1.0173E-OB 2.9853�-08 Y 1.5 2.6 7.3 4,92126E-06 2.289E-06 2.9953E-06 Y 2 4,8 12.1 6,56168E-06 4.0894E-08 2.9953E-06 N 3 5.6 17.7 9.84252E-06 9.1561E-06 2.9953E-06 N 4 4.6 22.3 1.31234E-05 1.6277E-05 2.9953E-06 N 6 7.6 29.9 1.96850E-05 3.6624E-05 2.9953E-06 N 8 6 35.9 2.62487E-05 6.511E-05 2.9953E-06 N 12 10.5 46.4 3.93701E-05 0,0001465 2.9953E.06 N 16 8.2 54.6 5.24934E-05 0.00026044 2.9953E-06 N 24 13.8 68.4 7.87402E-05 0.00058599 2.9953E-06 N 32 10.3 78.7 1.04987E-04 0.00104176 2.9953E-06 N 48 12.4 91.1 1.57480E-04 0,00234395 2.9953E-06 N 64 5.2 96.3 2.09974E-D4 0,00416703 2.9953E-06 N 96 2.8 99.1 3.14961E-D4 0,00937582 2.9953E-06 N 128 0.4 99,5 4.19948E-04 0.01866812 2.9953E-06 N >128 0.5 100 2.9953E-06 N Based on these calculations, particles 1.5 microns or less will discharge from Basin 5. ' Calculate TotalSuspendedSolids Concentration Assume particles 1.5 microns and smaller will discharge: Diameter Volume of Weighted Subtoul of size distribution {microns) %c Particle Volume Weighted%Total Volume (microns)Volume Volume 1 4.7 4.7 0.523 0,0246 0.0246 0.0001 % 1.5 2.6 7.3 1.766 0,0459 0.0705 0.0002% 2 4.8 12A 4.187 0.2010 0.2715 0.001% 3 5.6 17.7 1'4.130 0.7913 1.0828 0,003% 4 4.6 22.3 33.493 1.5407 2.6035 0,006% 6 7.6 29.9 113 040 8.5910 11.1945 0,028% 8 6 35.9 267.047 M0768 27,2713 0.068% 12 10.5 46.4 904.320 94.9536 122.2249 0,304% 16 8.2 54.6 2143.573 175.7730 297.9979 0,741% 24 13.0 68.4 7234.560 998.3693 1296.3672 3,224% 32 10.3 78.7 17148.567 1768 3044 3062.8716 7,616% 48 12.4 91.1 57876.480 7176,6835 10239.3551 25,461% 64 5, 2 96.3 137188.693 7133, 8121 17373.1672 43, 201 % 96 2.8 99.1 463011.840 12964.3315 30337.4987 75 438% 128 0.4 99.5 1097509,547 4390,0382 34727,5369 86,355% 128 0.5 100 1097509.547 5487.5477 40215,0846 100.000% 40215.0846 Particles 1.5 microns and smaller make up 7.3% of the total particles but 0.0002 %of the total volume. Since the density of all the particles is assumed the same, then particles 1.5 microns and smaller also represent approximately 0.0002% of the mass. Mass of cement washed into reclaimer 4000 Ihlday Mass of cement to discharge = Mass of cement washed off trucks each day x % of mass = 0,00701 pounds/day El iv 0 m 0 ns c 'o Q m 0 E m 0 E O L CT Y H (ft) enn Nole, Use nomograph Tc for natural basins with well-defined channels, for overland flow on bare earth, and for mowed -grass roadside channels. For overland flow, grassed surfaces, multiply Tc by 2. For overland flow, concrete or asphalt surfaces, multiply Tc by 0.4. For concrete channels, multiply Tc by 0.2. Figure 8.03a lime of concentration of small drainage basins. Y-'grin) 200 100 s0 10 5 1 C. sC.q� - 02- 8.03.4 Hydrograph Plot Hydratlow Hydrographs by lntelisolve Hyd. No. 1 CSC Spring Lake Plant Hydrograph type = Rational Storm frequency = 25 yrs Drainage area = 2.150 ac Intensity = 8.684 in/hr OF Curve = Fayetteville, NCADF Q (cfs) 18.00 15.00 12.00 •M . M 3.00 0.00 -k 0 Hyd No. 1 CSC Spring Lake Plant Hyd. No. 1 -- 25 Yr 5 Thursday, Jan 10 2008, 4:11 PM Peak discharge = 17.74 cfs Time interval = 1 min Runoff coeff. = 0.95 Tc by User = 5.00 min Asc/Rec limb fact = 1/1 Hydrograph Volume = 5,321 cuft Q (Gfs) 18.00 15.00 12.00 M � 3.00 — 1 0.00 10 Time (min) A I I AGNMENT B SCROMMEL RECLAIMER UNIT MID -ATLANTIC ASSOC I ATES,1 NC. Engineering & Envirunmenlal Suluiinns ix4, rY November 1, 2006 SftRU2MM EJ Mf 8 SPECIFICATIONS Discharge Pan: Two truck, Right, Left or Rear discharge Discharge pan capacity: 1.2 Cubic Yard Washout Stinger: Dual truck Primary Screw: 24 inch diameter x 24 feet long Secondary Screw: 18 inch diameter x 18 feet long Electrical Box: 480 volt 3-phase with motor protection, weatherproof, -( 208 volt 3 phase and 240 volt 3 phase are optional ) with Auto Start/Stop loop detector. Electric motors: Primary screw 10 HP, Secondary screw 5 HP Gearboxes: Primary screw, size 5, Secondary screw, size 4 Pump: 300+ gallons per minute Screen: Harp screen with 3116" slots Support Legs: Optional Complete Pit Drawings: Size and concept drawings for clarification pits, drying bunkers, truck ramps, etc. Field Service and Support: Factory man will be on -site for initial start-up and to train your drivers on the operation of the SCROMMEL. Time of Delivery: Normal lead times run 8 -10 weeks. As with any product, these may vary according to demand. Firm delivery dates will be given upon receipt of down payment. Shipping: All reclaimers are shipped F. O. B. Salina, Kansas, and is the responsibility of the customer. SCROMMEL works with transportation companies and can assist in this. Payment: A 20% deposit is required prior to order acceptance. Balance is due prior to shipping. Validity of price quote: Written quotes are good for 30 days. Producers using granite or similar stone, are required to purchase abrasion resistant flighting Specifications are subject to change without notice Note: Labor and materials for pit construction, plumbing, on -site electrical and assembly are the responsibility of the purchaser. F E D C B A SCR❑MMEE RESOURCE MANAGEMENT, INC. PIOi DRAVR it ]-900-595-5293 MICK W❑DKE SCALE 1-1Dyer Vlew e77s ArtraD Av[. , ra. smx ruse, E i". Ks cs4a]-eus r�Ul 9ALESMNr 1-765-825-7404 BRAD RYQUIST DATL 10-04-2007 TITLE 2418 ' STRUCTURAL DETAILS MUST BE DETERMINED BY LICENSED ENGINEER IN ACCORDANCE VITM LOCAL CODES Cow AwT COf(CR[T[ S[BV]Cr.-rATE 7TEV]L LE, hC 79' 7 B' PERR.FT-ER WALL EL -I' EL 0 A 79' 79, 66' EL D INNER WALL EL 0 B EL 0 EL 0 C 79' 7 B' - 66' — Lol 79 7R' EL 0 1 E - 79' . r 78, . I-L U F EL + I' WALL EL 4 1' k2 WALL EL{k ER 12' WALL EL +1' WALL EL +l WALL EL + k' SERQKMEL RESDUREE MANAGEMENT, INC. -ppp-y95- 43 MIEK WODK = r or rrt nu .na ..c.•a �. na +,..a v.w-wu r�E�e>y-fms BRAD BYOUISi iO-04-2007 m.� ningfww xewl.s P.m �[ ptramn�ci O. uu.rsca o+pncry a .cr.�e.acc vlra �pcti m¢s mane +wao-...rnswc.c I Acre = 43,560 Sq Feet, 7,106 / 43,560 = .1631 of an acre used for the reclaimer system 1 inch of rain, on 1 acre, assuming no absorption = 27,154 gallons .1631 x 27,154 = 4,428.81 gallons per inch of rain falling on reclaimer sy stem 24 hour/ 25 year rain event falls between 6" Cox 7" in your area, I used the high end 7" 7" x 4,428.81 = 31,001.67 gallons falling on reclaimer system in a 7" rain event. 7.48 gallons in a cubic foot, 31,001.67 / 7.48 = 4,144.60 cubic feet of storage required The 26" of freeboard in the pit system provides 8,649 cubic feet of storage. The upper 12" of the freeboard in the pit system will hold 4,383 cubic feet. 8,549 - 4383 = 4,166 cubic feet of storage below the 12" freeboard to hold 4,144.60 cubic feet of rain from a 7" rain event. Once again, thank you for your patience, we appreciate your business. Sincerely, Brad Byquist SCROMMEL Reclaimers Attachments. fl Text version of this message. (1KB) U PROFILESIO-04-07 Model (1)_pdf (280KB) OverviewRl0-04-07 Model (1).pdf (317KB) Previous Next htln://mail.favhlnck.com/cLyi-bin/inbox.exe?id=0] 7d738b8f8a848ca7488fd89d4ebb500fl... ] 0/26/2007 �pF �ArF9 p Michael F. Easley, Governor yy William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Y Coleen H. Sullins, Director Division of Water Quality December 7, 2007 Mr. Richard R. Allen Sr. PO Drawer 1867 Fayetteville, North Carolina 28302 Subject: Return of NCG140000 NOI, #1166 Concrete Service Company — Spring Lake Cumberland County Dear Mr. Allen: On December 5, 2007, the Division of Water Quality, Stormwater Permitting Unit received your Notice of Intent (NOI) to be covered under North Carolina's General Permit NCG140000, submitted for your proposed location on West Manchester Road in Spring Lake. Your submittal contained a check for $100, and three copies of: a transmittal letter from Crawford Design Company, the NOI application form, a site location map, a site layout drawing, Crawford's design notes and calculations, and DLR's approval letter for your erosion and sedimentation control plan. The submittal is significantly deficient, and we are returning it'unprocessed. Please ask your engineer to make an appointment with me for a face-to-face explanation of the minimum submittal requirements. The submittal is deficient in the following particulars. 1. Site Plan. Please consider that as reviewers, we can't determine from the site plan whether the measures you are proposing are sufficient, or not, because the drawing does not present a complete picture of the site with respect to our typical items of interest in a review. Instructions on the required content of the site plan are presented on page 5 of 5 of the NOI that you submitted. a. We cannot tell from the graphic presentation where the property lines are. b. The drainage areas are not delineated on the site plan. c. The location of stormwater and wastewater outfalls are not labeled as such. d. The limits of the aggregate storage areas are Indistinct, and consequently it is not clear to us that all drainage from the aggregate storage areas will enter the proposed large basin. e. It is not clear that all site stormwater discharge points are identified on the drawing. f. Also note at the same location in the NOI is the requirement that the site plan must show runoff conveyance features (like ditches, swales, runoff control berms, and pipes). We are not confident that the site plan shows the full extent of the features on the site that may affect runoff flow direction. 2. Design Notes and design details a. The design notes include a soils investigation report, but in the absence of a design narrative, it is not clear to us what the purpose of the soils work Is. The submittal presents the report, but then does not appear to present any design conclusion from the work. Further, if the work is presented in support of a design concept that includes infiltration, please note that a single sample is not sufficient to characterize the infiltration value over the entire base of the proposed holding pond. Further, it appears that the soil sample was retrieved from an elevation significantly above �no Caro ina turaly North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7058 Customer Service lntemCt: www.ncwaterqunlity.org Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-9612 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer — 50% Recycled/] 0% Post Consumer Paper Mr. Richard Allen Sr. Page 2 of 2 December 7, 2007 proposed base of the basin, calling Into question the applicability of the single permeability measurement. b. The design notes include a pH test result, but In the absence of a design narrative, it is not clear to us what the purpose of the pH testing is. The submittal presents the pH testing, but then does not appear to present any design conclusion from the work. Further, it is not clear what fluid the pH measurement pertains to. c. The design notes conclude that the large basin accommodates the 25-year rainfall volume, but the weir elevation on the site plan is 1.25' lower than the required elevation. The design conclusion is not supported by the design calculations. Further, please note that some means to empty the basin must be included in the design concept. d. Typically we see four wastewater sources at a ready -mix site: drum wash out, truck wash off, aggregate pile drainage, and wash down from the truck loading area. The design notes address three of these typical sources, but the notes do not address wash down from the truck loading area. We must understand how you will deal with wash down flows from under the loading silo. e. Please note that six different configurations of the recycle system chambers are presented in the design notes and the site plan. It is not clear to us which is included in the design. Please limit your re -submittal to the configuration that you actually wish us to permit. f. We note that the soils consultant reports a groundwater elevation of 6.5' below ground surface. From the site plan we see one spot elevation of 171.06'. Subtracting the measured depth to groundwater, we get a groundwater elevation potentially as high as 164.56' on the day it was measured. Given that North Carolina is experiencing the most severe drought in recorded history, with accompanying groundwater table depression, it is not clear to us how the design of the basin bottom at 164.50' acknowledges the likely Increase in groundwater elevation, and the accompanying reduction In available basin volume under more normal conditions. Please incorporate this consideration in your re -submittal. g. Please clarify for us the source of the fogging water that will be used to irrigate the aggregate piles. Please contact me with any questions or comments. Sincerely, Ken Pickle, P.E. DWQ Stormwater Permitting Unit (919)733-5083x584 ken.pickleCaDncmail.net Enclosures: Returned application package cc letter only: Adrlanna Hegeman, Crawford Design Co, 914 Hay St., Fayetteville, NC 28305 DWQ Fayetteville Regional Office SPU County Files - Cumberland County NC®ENR North Carolina Department of Environment and Division of Lard Resources James D. Simons, PG, PE Land Quality Section Director and State Geologist August 15, 2007 LETTER OF APPROVAL Natural Resources EXPRESS REVIEW OPTION D. R. Allen & Sons, Inc. Attn: Richard R. Allen Sr., President P.O. Drawer 1867 Fayetteville, NC 28302- RE: Project Name: New Concrete Plant Acres Approved: 3.4 Project ID: Cumbe-2008-018 County: Cumberland Manchester Manchester Road River Basin: Cape Fear Stream Classification: Other Submitted By: Crawford Design Company Date Received by LQS: 8/15/2007 Plan Type. Express Dear Mr. Allen: Michael F. Easley, Governor William G. Rass Jr., Secretary This office has reviewed the subject erosion and sedimentation control plan. We find the plan to be acceptable and hereby issue this Letter of Approval. The enclosed Certificate of Approval must be posted at the job site. This plan approval shall expire three (3) years following the date of approval, if no Iand-disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129. Title 15A NCAC 4B .0118(a) requires that a copy of the approved erosion control plan be on file at the job site. Also, this letter gives the notice required by G.S. I I3A-61.1(a) of our right of periodic inspection to insure compliance with the approved plan. North Carolina's Sedimentation Pollution Control Act is performance -oriented, requiring protection of existing natural resources and adjoining properties. If, following the commencement of this project, the erosion and sedimentation control plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statute 113A-51 through 66), this office may require revisions to the plan and implementation of the revisions to insure compliance with the Act. Fayetteville Regional Office 225 Green Street— Suite 714, Fayetteville, North Carolina 28301 - Phone. 910-433-3300 I FAX: 910-486-0707 f r Letter of Approval D. R. Allen & Sons, Inc. August 15, 2007 Page 2 of 3) The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project prior to the commencement of this land disturbing activity. This could include agencies such as the Division of Water Quality's stormwater regulations, their enforcement requirements within Section 401 of the Clean Water Act, the Environmental Protection Agency and/or the U.S. Army Corps of Engineers' jurisdiction of Section 404 of the Clean Water Act, the Division of Solid Waste Management's landfill regulations, local County or Municipalities' ordinances, or others that may be required. This approval cannot supersede any other permit or approval; however, in the case of a Cease and Desist Order from the Corps of Engineers, that Order would only apply to wetland areas. All upland areas would still have to be in compliance with the N.C. Sedimentation Pollution Control Act. If any area on site falls within the jurisdiction of Section 401 or 404 of the Clean Water Act, the developer is responsible for compliance with the requirements of the Division of Water Quality, the Corps of Engineers and the Environmental Protection Agency (EPA) respectively. Any erosion control measures that fall within jurisdictional wetland areas must be approved by the aforementioned agencies prior to installation. The Land Quality Section must be notified of a relocation of the measures in question to the transition point between the wetlands and the uplands to assure that the migration of sediment will not occur. If that relocation presents a problem or contradicts any requirements of either DWQ, the Corps, or the EPA, it is the responsibility of the developer to inform the Land Quality Section regional office so that an adequate contingency plan can be made to assure sufficient erosion control remains on site. Failure to do so will be considered a violation of this approval. Acceptance and approval of this plan is conditioned upon your compliance with Federal and State water quality laws, regulations, and rules. In addition, local city or county ordinances or rules may also apply to this land -disturbing activity, This approval does not supersede any other permit or approval. Please be aware that your project will be covered by the enclosed NPDES General Stormwater Permit NCGO1000 (Construction Activities). You should first become familiar with all of the requirements for compliance with the enclosed general permit. Please note that this approval is based in part on the accuracy of the information provided in the Financial Responsibility Form, which you provided. You are requested to file an amended form if there is any change in the information included on the form._ In addition, it would be helpful if you notify this office of the proposed starting date for this project. Please notify us if you plan to have a preconstruction conference, z v5;�. Letter of Approval D. R. Allen & Sons, Inc. August 15, 2007 Page 3 of 3 Your cooperation is appreciated., Sincerely, Sally McKinney, El Land Quality Section Enclosures: Certificate of Approval NT PDES Permit cc: Crawford Design Company Thomas Spinks, Building Inspector Belinda Henson, Division of Water Quality Land Quality Section - Fayetteville Regional Office File Energy, Mineral & Land Resources ENVIRONMENTAL WAUTY August 1, 2017 Concrete Service Company Inc Attn: Richard Allen PO Drawer 1867 Fayetteville, NC 28302 ROY COOPER Governor MICHAEL S. REGAN Secretary Subject: NPDES Stormwater Permit Coverage Renewal COC #NCG140375 Dear Permittee: TRACY DAVIS Director For coverage under Stormwater General Permit NCG140000, the Division of Energy, Mineral, and Land Resources (DEMLR) is forwarding herewith the reissued Certificate of Coverage (COC). This permit is reissued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between the state of North Carolina and the U.S. Environmental Protection Agency, dated October 15, 2007 (or as subsequently amended.) A new Certificate of Coverage (COC) is included with this letter. You must print a copy of the new NCG140000 General Permit from our website here: _.. _.... _ 'v' . e its es . In addition to the full permit, the 2017 print package on the website includes revised Discharge Monitoring Report (DMR) forms, Annual Discharge Monitoring Report forms, and Qualitative Monitoring Report Forms. The General Permit authorizes discharges of stormwater and wastewater (if applicable), and it specifies your obligations with respect to discharge controls, management, monitoring, and record keeping. Please review the new permit to familiarize yourself with all changes in the reissued permit. Significant changes to the General Permit are outlined in the Technical Bulletin, which is also available on the website above. Your facility has six months from receipt of the permit to update your Stormwater Pollution Prevention Plan (SPPP) to reflect any new permit requirements. '/'Nothing Compares.-,- SState of North Carolina I Environmental Quality I Energy. Mineral and Land Resources 512 N. Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612 919 707 9200 How does the new General Permit affect Tier Status? The first sample period of your permit begins August 1, 2017, Tier 3 actions in Part IV of your permit are triggered by benchmark exceedances on four occasions beginning on the effective date of this permit and do not count prior exceedances. Likewise, Tier 2 actions are triggered by two consecutive benchmark exceedances beginning on the effective date of this permit and do not count prior exceedances. However, if your facility is already in Tier 2 (monitoring stormwater discharges monthly) or Tier 3, you must continue monthly monitoring until relieved through conditions of the permit or by DEMLR staff approval. When does electronic DMR reporting start? We are setting.up our database with final permit parameters and the outfalls that permittees submitted on-line. All NCG14 Permittees will receive notification when our eDMR system is ready for these permittees to register and begin reporting monitoring data electronically. If you have any questions about the status, please contact Bethany Georgoulias at (919) 807-6372 or Robert Patterson at (919) 807-6369. If you did not submit outfall information already, we have included a form for you to return to us. (Note: NO FORM IS ATTACHED if we already have your outfall information.) Your coverage under the General Permit is transferable only through the specific action of DEMLR. This permit does not affect the legal requirements to obtain other permits which may be required by the N.C. Department of Environmental Quality (DEQ), nor does it relieve the permittee from responsibility for compliance with any other applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or decree. If you have any questions regarding this permit package please contact the DEMLR Stormwater Permitting Program at (919) 707-9220. cc: Stormwater Program files Sincerely, ray vl &4 for Tracy E. Davis, P.E., C.P.M. �Nothing Compares.,,_ — State of North Carohna I Environmental Quality I Energy, Mineral and Land Resources 512 N. Salisbury Street 1 1612 Mail Service Center I Raleigh, North Caroltna 27699-1612 919 707 9200 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES STORMWATER AND WASTEWATER DISCHARGES 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, Concrete Service Company Inc is hereby authorized to operate approved wastewater treatment system(s) and discharge stormwater and/or wastewater, as approved in the original permit/application or subsequent permit modification, from a facility located at: Concrete Service Company Plant #3 365 W Manchester Rd Spring Lake Cumberland County to receiving waters designated as Tank Creek (McDuffie Cr.) (McFayden Pond), class C waters in the Cape Fear River Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, IV, and V of General Permit No. NCG140000 as attached. This Certificate of Coverage (COC) shall become effective August 1, 2017. This Certificate of Coverage shall remain in effect for the duration of the General Permit. Signed this day August 1, 2017. Twoo 1&dwe for Tracy E. Davis, P.E.; CPM Director, Division of Energy, Mineral, and Land Resources By the Authority of the Environmental Management Commission PAT MCCRORY Y; Governor DONALD R. VAN DER VAART Environmental Secretary Quality March 30, 2016 Concrete Service Company, Inc. - - - Attn: Richard Allen i PO Drawer 1867 l Fayetteville, NC 28302 ! APB 4 2016 � Subject: Multimedia Compliance Inspection Concrete Service Company Plant #3 Cumberland County Dear Mr. Allen: Department of Environmental Quality staff from the Fayetteville Regional Office conducted a multimedia compliance inspection of Concrete Service Company Plant #3 on February 12, 2016 for permitted activities administered by the following Divisions: Division of Air Division of Energy, Quality (DAQ) Mineral, and Land Resources (DEMLR) The results of each applicable inspection area and any associated response actions or necessary corrective measures are detailed .in the Division specific' areas of the attached report(s). Should violations be noted in the attached report(s), you may receive separate enforcement related correspondence in addition to the report(s). If you have any questions regarding this multimedia inspection or the results of each program inspection, please contact the Fayetteville Regional Office at (910) 433-3300 and ask to speak with the appropriate Division staff. Thank you for your cooperation. encl: Air Quality Inspection Report Stormwater Inspection Report cc: (w/attachments) Trent Allen, FRO DAQ FRO Files DEMLR FRO Files State of North Carolina I Department of Environmental Quality Fayetteville Regional Office 1 225 Green Street, Suite 714 1 Fayetteville, NC 28301 910-433-3300 Compliance Inspection Report Permit: NCG140375 Effective: 07/01/11 Expiration: 06/30/16 Owner. Concrete Service Company Inc SOC: Effective: Expiration: Facility: Concrete Service Company Plant #3 County: Cumberland 365 W Manchester Rd Region: Fayetteville Spring Lake NC 28390 Contact Person: Lanny H Clark Title: Directions to Facility: 2820 feet west from intersection of Highway 87 and Route No. 1451 toward Easterling drive System Classifications: Primary ORC: Certification: Secondary ORC(s): On -Site Rep rosentative(s): On -site representative Winnie Jenkins Related Permits: Inspection Date: 02/12/2016 ntr� Time: 90 :30AM Primary Inspector: Mike Lawyer/1x Secondary Inspector(s): Exit Time: 11:OOAM Phone: 910-483-0396 Phone: 910-323-9198 ext 313 Phone- 910-433-330Q.51 2� Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: Ready Mix Concrete StormwaterNVastewater Discharge COC Facility Status: Compliant ❑ Not Compliant Question Areas: Storm Water (See attachment summary) Page: 1 permit: NCG140375 Owner - Facility: Concrete Service Company Inc Inspection Date: 0711212016 Inspection Type : Compliance Evaluation Reason for Visit: Routine Inspection Summary: Inspection conducted along with staff with the Division of Air Quality, Division of Water Resources and Division of Waste Management as part of a Multimedia Inspection to determine compliance with both the NCG140000 General Stormwater Permit and Air Quality Permit 098331G01. A review of the facility's Stormwater Pollution Prevention Plan revealed it contained all permit -required components including an annual review and update. Semi-annual Qualitative and Analytical monitoring records were complete and indicated no discharge since the previous inspection in 2014. After the records review, observations were made of site conditions. Required secondary containment is provided for the admixture tanks. Facility has a designated washout pit with concrete baffles for receipt of process wastewater associated with vehicle/equipment cleaning, wafting of raw material stockpiles and/or mixing drum cleanout. In reviewing the site plan in the file for the facility, it was observed that the washout pit at the facility has a different orientation than the plan. A revised site plan should be provided for the file. At the time of inspection, process wastewater from the washout pit was flowing along the western side of the site and entering the facility's stormwater basin located at the back (northern end) of the plant site. Per Part IV, Section D of the NCG140000 permit, "Authorized process wastewater commingled with stormwater shall be considered process wastewater." Therefore, based on the conditions observed at the time of inspection, any discharges from the basin would need to be monitored per the Analytical Monitoring Requirements for Process Wastewater. This includes quarterly monitoring with applicable effluent limitations along with completion and submittal of the appropriate monitoring report forms. It was also observed that there was an accumulation of residual concrete within a portion of the stormwater basin. Be advised that the NCG140000 permit requires the proper operation and maintenance of all facilities and systems of treatment and control. Page: 2 r Permit: NCG140375 Owner • Facility: Concrete Service Company Inc Inspection Date: 0211212016 Inspection Type : Compliance Evaluation Reason for visit: Routine Stormwater Pollution Prevention Plan You No NA NE Does the site have a Stormwater Pollution Prevention Plan? ❑ ❑ ❑ # Does the Plan include a General location (USGS) map? ■ ❑ ❑ ❑ # Does the Plan include a "Narrative Description of Practices"? E ❑ ❑ ❑ # Does the Plan include a detailed site map including outfall locations and drainage areas? 0 ❑ ❑ ❑ # Does the Plan include a list of significant spills occurring during the past 3 years? ❑ ❑ ❑ # Has the facility evaluated feasible alternatives to current practices? ❑ ❑ ❑ # Does the facility provide all necessary secondary containment? 0 ❑ ❑ ❑ # Does the Plan include a BMP summary? E ❑ ❑ ❑ # Does the Plan include•a Spill Prevention and Response Plan (SPRP)? 0 ❑ ❑ ❑ # Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ❑ ❑ ❑ # Does the facility provide and document Employee Training? ❑ ❑ ❑ # Does the Plan include a list of Responsible Party(s)? ❑ ❑ ❑ # Is the Plan reviewed and updated annually? ❑ ❑ ❑ # Does the Plan include a Stormwater Facility Inspection Program? ❑ ❑ ❑ Has the Stormwater Pollution Prevention Plan been implemented? 0 ❑ ❑ ❑ Comment: Qualitative Monitoring Yes No NA NE Has the facility conducted its Qualitative Monitoring semi-annually? E ❑ 110 Comment: Analytical Monitoring Yes No NA NE Has the facility conducted its Analytical monitoring? 0 ❑ ❑ ❑ # Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ 0 ❑ Comment: Monitorino records from previous insDection in 2014 to present indicate no discharge. See Inspection Summary regarding monitoring frequency and completion of appropriate monitoring_ forms. Permit and Outfalls Yap No NA NE # Is a copy of the Permit and the Certificate of Coverage available at the site? ❑ ❑ ❑ # Were all outfalls observed during the inspection? ❑ ❑ ❑ # If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ 0 ❑ # Has the facility evaluated all illicit (non stormwater) discharges? ■ ❑ ❑ ❑ Comment: Page: 3 ':i' . , ,' NORTH CAROLINA DIVISION OF AIR QUALITY Inspection Report Date: 02/23/2016 Facility Data Concrete Services Company, Inc. Plant #3 365 Manchester Road Spring Lake, NC 28390 Lat: 35d 11.4102m Long: 78d 59.6812m SIC: 3273 / Ready -Mixed Concrete NAICS: 32732 / Ready -Mix Concrete Manufacturing Facility Contact Winnie Jenkins HR/Safety Director (910) 237-1791 Comments: Contact Data Authorized Contact Richard Allen, Jr. President (910)323-9198 Inspector's Signature: Date of Signature: Fayetteville Regional Office Concrete Services Company, Inc. Plant #3 NC Facility ID 2600227 County/FIPS: Cumberland/051 Permit Data Permit 09833 / G01 Issued 4/27/2012 Expires 3/31/2017 Classification Small Permit Status Active Current Permit Application(s) None Technical Contact I SIP Winnie Jenkins HR/Safety Director (910)237-1791 Program Applicability Compliance Data Inspection Date 02/12/2016 Inspector's Name Heather Carter Operating Status Operating Compliance Code Compliance - inspection Action Code FCE On -Site Inspection Result Compliance j Total Actual emissions in TONSIYEAR: V TSP S02 NOX VOC CO PM10 *HAP 2011 1.37 --- --- --- --- 0.6250 0.3770 HAP Emitted Five Year Violation History: None Performed Stack Tests since last FCE: None 1) Facility Location & Directions: Concrete Services Company, Inc: Plant #3 is located at 365 West Manchester Rd. From FRO, take Bragg Blvd. (Highway 87 North) approx. 10 miles to Spring Lake, NC. Stay on Highway 87 North for about 3 miles and turn left onto West Manchester Rd. The•facility is approx. 1 mile on the left. 2) Safety Considerations: All standard FRO safety gear is required. Watch for moving mixer trucks and sand and aggregate trucks. Watch for sand and small rocks falling off of elevated conveyor belts. 3) Facility and Process Description: Concrete Services Company, Inc. Plant #3 is a truck mix concrete batch plant. The facility consists of a concrete batch plant and a massive aggregate handling and storage system. This concrete batch plant consist of a cement silo, a flyash silo, three aggregate storage bins, an aggregate mixing conveyor, a weight hopper, and a truck load -out operation. The weigh hopper, the cement silo, the fly ash silo and the truck load out are all controlled by a single, central bag house. The aggregate storage and handling system is three storage silos, a loading pit and two massive conveyors, one to move aggregate from the incoming pit into one of three silos and a second conveyor to transport the aggregate to the concrete batch plant. This facility is very high tech and can be operated by one person, unless the aggregate silos are empty. 4) Ectuipment List: Permitted One Concrete batch plant with fabric filter air pollution control system(s) installed on all sources: 1. One (1) cement mixing weigh hopper and loading operation; 2. Silos for cement and fly ash storage; Insignificant: lES-1 Sand & Aggregate Handling 5) Ins ection Summa On 12 February 2016, I, Heather Carter, DAQ FRO, arrived at the facility to perform a multimedia inspection training with Mitchell Revels, Mike Lawyer Trent Allen, Tony Honeycutt, Andrew Hammonds, Mark Brantley, and Melissa Joyner, all of the FRO DEQ. We met with Winnie Jenkins, HR/Safety Director, who had agreed to host us for the training inspection. Ms. Jenkins reviewed the FACFINDER and identified no changes other than updating her invoice contact phone number. She provided a copy of the air permit, I/M records, and monthly production records. She stated there had been no changes since the last inspection and none were expected in the near future. She stated there have been no complaints from area residents. The plant was not operating due to the inclement weather, but she arranged for a cement truck to unload into their silo so that we could observe it during the training inspection. Throughputs: Operating hours Monday through Saturday; 12 hrs/day. Employees 8 total; 5 per 12 hr shift (when business demands it) Production, cu yds 2015: 32,823; 2014: 32,578; 2013: 54,738; 2012: 81,198; 2011: 67,912; 2010: 70,818 We went outside to observe the truck unloading cement. He was unloading at 10-13 psig. We then positioned ourselves to observe bag house exhaust. 1 observed 0% opacity at the exhaust, and there was no evidence of particulate build up on the equipment or ductwork. However, the truck top gasket/seat was letting small amounts of particulate out into the atmosphere. The operator stated that this was not normal, as did Ms. Jenkins, and that apparently the gasket/seal needed to be replaced. He further stated that this is why you have an operator standby with the truck to observe anything like this that might occur. There were no concrete trucks being loading this day due to inclement weather. The entire grounds are concreted, which helps prevents fugitive dust emissions, and appeared clean -and well maintained. c '•3 6) Permit Stipulations: _ A.2. 2D .0202, Permit Renewal and Emission Inventory Requirement — Facility shall submit permit renewal application and El at least 90 days prior to permit expiration. APPEARED IN COMPLIANCE — Facility submitted renewal app and CY 2011 EI on 3/26/12, :y well before the due date of 6/2/12. The next permit renewal application and EI (for CY 2015) is due January 2017. A.3. 2D .0515 Particulate Control Requirement — Particulate matter emissions shall not exceed allowable emission rates; calculated hourly emission limit based on potential. APPEARED IN COMPLIANCE — Compliance was determined during the most recent permit review based on operating the source as described in the permit conditions. No changes have been made to operations since that determination. AA. 2D .0521, Control of Visual Emissions — Visible emissions from the facility, manufactured after 1 July 1971 shall not exceed 20% opacity. APPEARED IN COMPLIANCE — While the cement silo was being loaded 1 observed 0% opacity from the central dust collector exhaust. There were no trucks being loaded with concrete during the inspection. I observed a clean well maintained plant, with no particulate buildup on equipment, ductwork, or surrounding areas. A.S. 2D_.0535, Notification Requirement — The facility is required to notify DAQ if excess emissions occur for more than a 4-hour period caused by a breakdown or other abnormal condition. r APPEARED IN COMPLIANCE -- Ms. Jenkins stated that they did not have any periods of excess emissions during the past year. A. 6.21) .0540 Fugitive Dust Control Requirement - The, Permittee shall not cause or allow fugitive dust emissions to cause or contribute to substantive complaints or excess visible emissions beyond the property boundary. APPEARED IN COMPLIANCE- No fugitive dust was observed at the facility boundaries. The facility property is fully paved. Ms. Jenkins stated that the facility has not received any complaints. A.7. 2D .0611 Fabric Filter Requirement — The Permittee shall record bag -filter inspections and maintenance in a logbook and conduct at least one internal inspection of the bag -filter each year. APPEARED IN COMPLIANCE —11M log indicated last annual inspection was on 21 January 2016. The log also indicates weekly general maintenance checks as well as monthly checks. Bags were replaced on 21 September 2015. -` A.B. 2D .1104, Toxic Air Pollutants Requirements —The maximum concrete production is a dependent on the distance from weigh hopper to the closest property line. Requirements: the closest point of a property boundary to the weigh hopper must be marked; the Permittee shall record concrete production each month and annually; an annual report of monthly and annual concrete production and distance to closest property line shall be submitted by 1 March for the previous year. APPEARED IN COMPLIANCE — The most recent annual report was received on time. The ` closest property line is a designated red -colored stake at Manchester Road with a distance previously measured to the weigh hopper reported as 130 ft; maximum annual production limit is 150,000 cu yds and 2015 production was 32,823 cu. yds. NOTE: During the inspection, Ms. Jenkins stated that the closest property line is located in woods to, the left of the facility (if you are facing the facility), and it measures 202 ft to the weigh. hopper. Next inspector should verify which property line is closer and:its distance. A.9. 20 .0310,,General Permit - Facility must: 1) only operate permitted emission sources; 2) be located in approved county; 3 not exceed max hour] throughput of 138; d3/hour; 4) not process more PP tY' } Y Pip . Y. concrete during any calendar year greater than the max production,rate list in permit table. APPEARED IN COMPLIANCE.— Facility operates only the permitted emission sources in Cumberland Co with a minimum distance to the property line measured as 130 ft. Current production rate is 65-70 cu yds/hr.. Ms. Jenkins asked the operator who stated that max production rate is approx. 152 cu yds, and sprinesummerlfall .normal is 100 cu yds/hr. ' A.10 20..0711 Toxic Air Pollution Emissions — The Permittee shall limit toxic air pollutant (TAPs) :r emissions to less than the TPERs.` APPEARED IN COMPLUNCE — The facility annual production rate is far less than. it maximum s.; annual production rate limit thus emissions will be less than the TPERs. s 7) Non- compliance History_Since 2010: None . ;'•5 `,, 8) 112R Status: The facility does not use or store applicable chemical compounds in quantities requiring a written risk •,ah management plan. 9) Compliance Statement: On 12 February 2016, Concrete Services Company, Inc.- Plant #3 appeared to be operating in compliance with their current air permit. Pink Sheet Items: None rcif M North Carolina Department of Environment and Natural Resources Pat McCrory Governor September 2, 2014 Fay Block Materials Incorporated Attn: Winnie Jenkins, MESH 130 Builders Boulevard Fayetteville, NC 28301 John E. Skvarla, III Secretary Subject: :COMPLIANCE EVALUATION INSPECTION Fay Block Materials Incoporated Concrete Service Company Plant, Certificate of Coverage-NCG140375 NPDES Stormwater General Permit- NCG140000 Cumberland County Dear Ms. Jenkins: On August 28, 2014, a site inspection was conducted for the Concrete Service Company Plant facility located at Manchester Road, Cumberland, North Carolina. A copy of the Compliance Inspection Report is enclosed for your review. You were also present during the inspection and your time and assistance is greatly appreciated. Permit coverage authorizes the discharge of stormwater from the facility to receiving waters designated as an unnamed Tributary to Tank Creek, Class C Waters in the Cape Fear River Basin. The site visit and file review revealed that the subject facility is covered by NPDES Stormwater General Perm it-NCG1 40000, Certificate of Coverage-NCG140375. As a result of the inspection, the facility was found to be in compliance with the conditions of the NCG140000 permit. Please refer to the enclosed Compliance Inspection Report for additional comments and observations made during the inspection. Please be advised that violations of the NPDES Stormwater General Permit are subject to a civic penalty assessment of up to $25,000 per day for each violation. If you or your staff has any questions, comments, or needs assistance with understanding any aspect of your permit, please contact me at (910) 433-3300 or by e-mail at diane.adams@ncdenr.gov. Sincerely, C. Diane Adams Sr. Environmental Specialist Enclosure cc: FRO - Land Quality Section, Stormwater Files-NCG140375 Division of Energy, Mineral, and Land Resources Land Quality Section Fayetteville Regional Office, 225 Green Street -- Suite 714, Fayetteville, Forth Carolina 28301 Phone: 910-433-33001 FAX: 910-486-07071 Internet: http://Mrtal.ncdenr,.org/webllrl An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled 110% Post Consumer Paper Permit: NCO140375 SOC: County: Cumberland Region: Fayetteville Comipfflance Inspection Re ort Effective: 07/01/11 Expiration: 06/30/16 ' Owner : Concrete Service Company Inc Effective: Expiration: Facility: Concrete Service Company Plant 365 W Manchester Rd Contact Person: Lanny H Clark Title: Directions to Facility: 2820 feet west from intersection of Highway 87 and Route No. 1451 toward Easterling drive System Classifications: Primary ORC: Certification: Secondary ORC(s): On -Site Reprasentative(s): Related Permits: Spring Lake NC 28390 Phone: 910-483-0396 Phone: Inspection flats: 08/28/2014 Entry Time: 01:OOPM Exit Time: 02:OOPM Primary Inspector: Carolyn D Adams Phone: Secondary Inspector(s): Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: Ready Mix Concrete StormwaterlWastewater Discharge COC Facility Status: Compliant Not Compliant Question Areas: 0 Storm Water (See attachment summary) Page: 1 Penult: NCO140375 Owner - Facility: Concrete Service Company Inc Inspection Data: OB12812014 inspection Type. Compliance Evaluation Reason for Visit Routine Inspection Summary: Page: 2 Pormit: NGG140375 Owner - Facility: Concrete Service Company Inc Inspection Date: 08/28/2014 Inspection Type: Compliance Evaluation Reason for Visit: Routine Stormwater Pollution prevention Plan Does the site have a Stormwater Pollution Prevention Plan? ❑ ❑ ❑ # Does the Plan Include a General Location (USGS) map? ❑ ❑ ❑ Al Does the Plan include a 'Narrative Description of Practices'? ❑ ❑ ❑ # Does the Plan Include a detailed site map including outfall locations and drainage areas? ❑ ❑ ❑ # Does the Plan Include a list of significant spills occurring during the past 3 years? 0 ❑ ❑ ❑ # Has the facility evaluated feasible alternatives to current practices? 0 ❑ ❑ ❑ # Does the facility provide all necessary secondary containment? M ❑ ❑ ❑ Al Does the Plan include a BMP summary? 0 ❑ ❑ ❑ # Does the Plan include a Spill Prevention and Response Plan (SPRP)? 0 ❑ ❑ ❑ # Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? 0 ❑ ❑ ❑ # Does the facility provide and document Employee Training? ❑ ❑ # Does the Plan Include a list of Responsible Party(s)? �, ❑ ❑ ❑ # Is the Plan reviewed and updated annually? M ❑ ❑ ❑ # Does the Plan include a Stormwater Facility Inspection Program? ❑ ❑ ❑ Has the Stormwater Pollution Prevention Plan been implemented? ❑ ❑ ❑ Comment: Oualltatlye Monitorin 'Yes No NA NE Has the facility conducted its Qualitative Monitoring semi-annually? M ❑ ❑ ❑ Comment: Analytical Monitorina Yea No NA NE Has the facility conducted its Analytical monitoring? ❑ ❑ ❑ # Has the facility conducted Its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ ❑ Comment: Permit and Outfalls Yes No NA NE # is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ ❑ ❑ # Were all outfalls observed during the inspection? ❑ ❑ ❑ . # If the facility has representative outfall status, is it property documented by the Division? ❑ ❑ ❑ # Has the facility evaluated all Illicit (non sormwater) discharges? ■ ❑ ❑ ❑ Comment: Page: 3 fi NCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor Richard Allen Concrete Service Company Inc ' PO Drawer 1867 Fayetteville, NC 28302 Dear Permittee: Division of Water Quality Caleen H. Sullins Director August 1, 2011 Dee Freeman Secretary Subject: NPDES Stormwater Permit Coverage Renewal Concrete Service Company Plant COC Number NCG140375 Cumberland County In response to your renewal application for continued coverage under stormwater General Permit NCG140000 the Division of Water Quality (DWQ) is forwarding herewith the reissued General Permit. This permit is reissued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between the state of North Carolina and the U.S. Environmental Protection Agency, dated October 15, 2007 (or as subsequently amended). The following information is included with your permit package: • A new Certificate of Coverage • A copy of General Permit NCG140000 • A copy of the Technical Bulletin for the General Permit • Two copies of the Discharge Monitoring Report (DMR) Form for Stormwater • Two copies of the DMR Form for Wastewater • Two copies of the Qualitative Monitoring Report Form The General Permit authorizes discharges of stormwater and/or wastewater, and -it specifies your obligations with respect to discharge controls, management, monitoring, and record keeping. Please review the new permit to familiarize yourself with all the changes in the reissued permit. If your Certificate of Coverage (COC) restricts authorization to discharge stormwater only (or other limited terms), you must contact the Stormwater Permitting Unit if you would like to request a modification to your COC. The first sample period of your permit begins July 1, 2011. However, because of the delayed mail -out of permit packages, your facility is expected to attempt to sample during the first sampling period, and must comply with sampling requirements beginning during the second sampling period. Your facility must sample a representative storm event between January 1 and July 30, 2012 (for stormwatersampling), and/or sample wastewater between October 1, 2011 and December 31, 2011 (or, if applicable, report "No Flow", as outlined in Part V, Section E). Additionally, your facility has 6 months from the time of receipt of the permit to update SPPP to current standards. The more significant changes in the General Permit since your last Certificate of Coverage include the following (please note the names and numbers of sections have been changed from.the previous permit revision): Part II: • Authorization to Construct (ATC) language was added to the permit and adapted to fit NCG140000. Part Ill: • The Stormwater Pollution Prevention Plan (SPPP) section has been updated to the most current language of our permits. Some additional conditions specific to this industry have been added to the SPPP language. Part IV: • Sections A & B: Revised provisions require stormwater discharges be sampled twice per year (instead of annually), and sampling results shall be compared to new benchmark values. (The previous cut-off concentrations have been removed). • Sections A & B: Revised provisions require the permittee to execute Tier One, Two & Three response actions: Tier One requirements for a first benchmark exceedence, and/or Tier Two response for a second consecutive benchmark exceedence, if applicable. Tier Two requires that the permittee institute monthly monitoring (reported to the appropriate Regional Offices) instead of twice -per -year monitoring. Monthly monitoring shall be done until three consecutive monitoring events show no benchmark exceedences. • Sections A & B: This permit now contains a provision that four exceedences of any benchmark will trigger increased DWQ involvement in the permittee's stormwater management and control actions (Tier Three). DWQ may direct the permittee to apply for an individual permit, institute specific monitoring, or may direct the implementation or installation of specific stormwater control measures. • Sections A & B: Failure to perform analytical stormwater monitoring requires that the permittee begin a monthly sampling scheme for both industrial stormwater discharges and/or stormwater discharges from VMA areas (where applicable). After 6 months of monthly sampling, the permittee may return to semi- annual sampling, unless otherwise specified by DWQ. • Sections A & B: A lower TSS benchmark of 50 mg/l for HQW, ORW, PNA and Tr Waters was added to this permit for these more sensitive waters. • Section B: The monitoring parameter Oil & Grease has been replaced by the parameter Total Petroleum Hydrocarbons. • Sections A, B & C: Inability to sample due to adverse weather must be reported in the SPPP. • Sections A, B & C: The terminology "Representative Storm Event" has been replaced by "Measurable Storm Event" in response to comments from industry groups. A measurable storm event is a storm event that results in an actual discharge from the permitted site outfall. The previous measurable storm event must have been at least 72 hours prior, unless the permittee is able to document that a shorter interval is representative for local storm events during the sampling period, and obtains written approval from the local DWQ Regional Office. • Section C: Qualitative monitoring must now be conducted semi-annually and is tied to the same measurable storm event as the analytical monitoring. • Section C: If the permittee fails to respond effectively to problems identified by qualitative monitoring, the permittee may be required by DWQ to perform corrective action. • Section D: This section has now been consolidated to one section with one set of combined tables for all types of authorized wastewater discharges. • Section D: The wastewater analytical monitoring schedule has been set to quarterly. • Section D: TSS limits have been revised for PNA, Trout and HQW waters per rule requirements in 15A NCAC 0213 .0224. • Section D: 7010-based flow limits have been set for PNA waters per regulations in 15A NCAC 02B. • Section D: TPH monitoring requirements have been added to wastewater monitoring when stormwater runoff from VMA areas commingles with wastewater. • Section D: This wording in the permit has been removed: "For facilities which route stormwater and all process wastewater to a recycle system, no analytical monitoring of process wastewater discharges is required if that recycle system discharges as a result of a 10-year 24-hour (or larger) precipitation event." Part V: • Section A: For existing facilities previously permitted and applying for renewal under this General Permit: New elements of the Stormwater Pollution Prevention Plan for this permit renewal shall be developed and implemented within 6 months of the effective date of the initial Certificate of Coverage issued pursuant to this General Permit and updated thereafter on an annual basis. Your coverage under the General Permit is transferable only through the specific action of DWQ. This permit does not affect the legal requirements to obtain other permits which may be required by DENR, nor does it relieve the permittee from responsibility for compliance with any other applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or decree. If you have any questions regarding this permit package please contact these members of the Stormwater Permitting Unit: Jennifer Jones (919) 807-6379, Ken Pickle (919) 807-6376, or Bethany Georgoulias (919) 807-6372. Sincerely, for Coleen H. Sullins cc: DWQ Central Files Stormwater Permitting Unit Files Fayetteville Regional Office STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER DUALITY GENERAL PERMIT NO. NCG140000 CERTIFICATE OF COVERAGE No. NCG140375 4f61;UVA►►►IT11119:4.Z1i 901:ft9.I�I�1��Y►�►L>`��A►,►11���. 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, Concrete Service Company Inc is hereby authorized to discharge stormwater and/or wastewater from a facility located at and/or operate an approved wastewater treatment system located at: Concrete Service Company Plant 365 W Manchester Rd Spring Lake Cumberland County to receiving waters designated as Tank Creek (McDuffie Cr.) (McFayden Pond), a class C waterbody in the Cape Fear 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 August 1, 2011. This Certificate of Coverage shall remain in effect for the duration of the General Permit. Signed this 1 st day of August, 2011. for Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission 4,4 A AAA NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary March 10, 2011 Winnie Jenkins, MESH Fay Block Materials Incorporated 130 Builders Boulevard Fayetteville, NC 28302 SUBJECT: Compliance Evaluation Inspection Concrete Service Company, Inc. NPDES Stormwater General Permit NCG].40000, COC No. NCG140375 Cumberland County Dear Ms. Jenkins: Enclosed please find a copy of the Compliance Evaluation inspection report for the inspection conducted January 25, 2011 for the subject facility. Your time and willingness to conduct a thorough tour of the subject facility is greatly appreciated. The inspection and file review revealed that the NPDES Stormwater General Permit and associated Certificate of Coverage (COC) authorize discharges of wastewater and Stormwater to an Unnamed Tributary to Tank Creek, Class "C" Waters in the Cape Fear River Basin. The following observations were noted during the inspection. -The site was found to be very neat and well maintained, -All records were present and very neat and organized, -No spills were recorded for site, -SPPP plan was developed by outside consultant, -All Stormwater on the site is directed to a stormwater basin at the rear of the property. Ms. Jenkins stated that there has never been a discharge from the site to surface waters. Observations made at the time of the inspection revealed no indication that there had ever been a discharge from the site. 225 Green 5t., Suite 714, Fayetteville, NC 28301-5043 Phone: 910-433-33001 FAX: 910-486-0707 Internet: www.npwatorguality.org One NoithCaroliila naturally An Equa! Opportunity I Omialive Action Employer- 50% Recycled 1 f 0% Post Consumer Paper Ms. Jenkins March 10, 2011 Page 2 of 2 f you have questions or comments pertaining to this report please do not hesitate to contact me at (910) 433-3300. Sincerely, Paul E. Rawls Environmental Program Consultant PER/per Enclosure: Tnspoetion Report cc: FRO Files, Mike Lawyer DWQ WBS Compliance & Permits Unit, Niki Maher DWQ Central Files P Permit: NCG140375 SOC: County: Cumberland Region: Fayetteville Compliance Inspection Report Effective: 08/01/09 Expiration: 06/30/11 Effective: Expiration: Owner: Concrete Service Company Inc Facility: Concrete Service Company Plant W Manchester Rd Spring Lake NC 228390 ALRe Contact Person: mark Title: Phone: 94&4&3-6396- Directions to Facility: 2820 feet west from intersection of Highway 87 and Route No. 1451 toward Easterling drive System Classifications: Primary ORC: Certification: Secondary ORC(s): On -Site Representative(s): Related Permits: Phone: Inspection Date: 01/25/2011 Entry Time: 08:00 AM Exit Time: 03:00 PM Primary Inspector: Paul E lkawl Phone: r Secondary Inspectors): lv,� 9r0.433.33Q 4�1GtO«'. Mike Lawyer Phone: 910-433-3300 Ext.172� Reason for Inspection: Routine Inspection Type: Compliance Evaluation 33Z_5� Permit Inspection Type: COG y Mix Concrete Stormwater/Wa stewa ter Discharge Facility Status: ■ Compliant ❑ Not Compliant Question Areas: ■ Storm Water (See attachment summary) Page: 1 V Permit: NCG140375 Owner - Facility: Concrete Service Company Inc Inspection Date: 01/2512011 Inspection Type: Compliance Evaluation Reason for Visit: Routine Inspection Summary: The inspection and file review revealed that the NPDES Stormwater General Permit and associated Certificate of Coverage (COC) authorize discharges of wastewater and stormwater to an Unnamed Tributary to Tank Creek, Class "C Waters in the Cape Fear River Basin. The following observations were noted during the inspection: -The site was found to be very neat and well maintained, -All records were present and very neat and organized, -No spills were recorded for site, -SPPP plan was developed by outside consultant, -All stormwater on the site is directed to a stormwater basin at the rear of the property, Ms. Jenkins stated that there has never been a discharge from the site to surface waters. Observations made at the time of the inspection revealed no indication that there had ever been a discharge from the site. Page: 2 ;4 Permit: NCG140375 Owner - Facility: Concrete Service Company Inc Inspection Date: 01l2512011 Inspection Type: Compliance Evaluation Reason for Visit: Routine Stormwater Pollution Prevention Plan Yes No NA NE Does the site have a Stormwater Pollution Prevention Plan? ■ n n n # Does the Plan include a General Location (USGS) map? ■ n n n # Does the Plan include a "Narrative Description of Practices"? ■ n Cl ❑ # Does the Plan include a detailed site map including outfall locations and drainage areas? ■ n ❑ ❑ # Does the Plan include a list of significant spills occurring during the past 3 years? n n ■ n # Has the facility evaluated feasible alternatives to current practices? ■ n n n # Does the facility provide all necessary secondary containment? ■ n ❑ ❑ # Does the Plan include a BMP summary? ■ n n n # Does the Plan include a Spill Prevention and Response Plan (SPRP)? ■ n n Cl # Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ■ ❑ ❑ ❑ # Does the facility provide and document Employee Training? ■ n n n # Does the Plan include a list of Responsible Party(s)? ■ n n 0 # Is the Plan reviewed and updated annually? ■ n n n # Does the Plan include a Stormwater Facility Inspection Program? ■ n n ❑ Has the Stormwater Pollution Prevention Plan been implemented? ■ n n n Comment: Records were neat and well maintained. Qualitative Monitoring Yes No NA NE Has the facility conducted its Qualitative Monitoring semi-annually? ■ ❑ ❑ ❑ Comment: Analytical Monitoring Yes No NA NE Has the facility conducted its Analytical monitoring? ❑ n ■ # Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? n ❑ ■ n Comment: -Ail Stormwater on the site is directed to a stormwater basin at the rear of the property. Ms. Jenkins stated that there has never been a discharge from the site to surface waters. Observations made at the time of the inspection revealed no indication that there had ever been a discharge from the site, Page: 3 Permit: NCG140375 Owner • Facility: Concrete Service Company Inc Inspection Date: 01/25/2011 Inspection Type: Compliance Evaluation Reason for Visit: Routine Permit and Outfalls Yes No NA NE # Is a copy of the Perrnit and the Certificate of Coverage available at the site? ■ n ❑ n # Were all outfalls observed during the inspection? ■pnn # If the facility has representative outfall status, is it properly documented by the Division? ❑ ■ ❑ # Has the facility evaluated all illicit (non stormwater) discharges? Comment: ■nnn Page: 4 ��A NCDEEIR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Governor Mr. Lanny Clark, General Manager Concrete Service Company, Inc. 130 Builders Boulevard Fayetteville, North Carolina 28301 Dear Mr. Clark: Coleen H. Sullins Director January 13, 2010 Dee Freeman Secretary ®EN lid—FR® JAN 19 2010 DV1!0 Subject: Concrete Service Company, Inc. Real and Personal Property Fayetteville, North Carolina Cumberland County As per your request, the staff of the Division of Water Quality has completed the review of the Tax Certification Request for real and personal property received December 2, 2009. Based on our review of the materials submitted, none of the facilities operate under a Division of Water Quality wastewater permit. Therefore, the facilities do not meet the requirements of G.S. 105- 275(8)3. If you have questions please contact me at mark.hubbard@ncdenr.gov or (919) 715-6224. Sincerely, MarkZlHkard,sistant Chief Construction Grants & Loans Section Attachments cc: Aaron Donaldson, Cumberland County Tax Collector, PO Box 449, Fayetteville, NC 28302 Belinda Henson, Fayetteville Regional Office Pam Whitley WQ Central Files — Permit SW6071202 - 16M Mail Service Center, Raleigh, North Carolina 27699-1633 One Location: 2728 Capital Blvd. Raleigh, North Carolina 27604 NorthCarolina Phone: 919.733.69001 FAX: 919.715.62291 Customer Service: 1.877.623-6748 Internet: www.ncwaterquality,org ;Vatyrally An Equal Opportunity 1 Affirmative Action Employer hl~,'i t=3aW.QXJ.s& TCN: This a fiht�d ><sr )be used only for waste treatment systems and ealuin> t.>IflideFtt a authority of the NC Division of Water Oualitv (DWO) Rev. 06/0112007 DIRECTIONS: Complete and mail signed copies of the application form and all supporting information to both: 1) the County Tax Administrator for the County in which the facility is located (one copy) AND 2) to the NC Division of Watetl Quality, Construction Grants and Loans Section, 1633 Mail Service Center, Raleigh, NC 27699-1633 (two copies). Type or print in blue or black ink. A separate application package is required for each facility where property proposed for tax certification is located. THIS APPLICATION WILL NOT BE PROCESSED WITHOUT COMPLETE AND ACCURATEINFORMATION. If you have any questions regarding this application, please call the local tax office or the NC Division of Water Quality at 919[733-6900 or their web site at www.nccgl.net for more specific contact information. Please Note: a) Tax Certifications will only be processed for facilities under the authority of the DWQ and only if the DWQ has found that the described property: 1. Has been or will be,constructed or installed; 2. Complies with or that plans therefore which have been submitted to the DWQ indicate that it will comply with the requirements of the Environmental Management Commission; 3. Is being effectively operated or will, when completed, be required to operate in accordance with the terns and conditions of the permit, certificate of approval, or other document of approval issued by the DWQ: and 4. Has or, when completed, will have as its PRIMARY rather than incidental purpose the reduction of water pollution. 6). Is being used exclusively (100%) for wash treatment b) If approved, the Tax Certification issued will incorporate all requested assets at the facility that meet the criteria for Tax Certification by DWQ. Therefore this application must include any new assets for which Tax Certification is beinq requested, as well as anv assets previously receivinq Tax Certification from DWO for which Tax Certification is still needed. AApplicant(Applicant is the owner of, and taxpayer for, the property described in this appflcation for tax certification. Name of Applicant: Name of Facility: Manchester Road Properties, LLC Concrete Service Company, Inc. Address of Applicant, if different from facility where property located: Physical Address of Facility where property located (no P.O. Box): P.O. Drawer 1867 Fayetteville, NC 28302 365 W. Manchester Rd, Spring Lake, NC 28390 (address) (city) (zip) (street address) (city) (zip) Business Relationship of Applicant to facility where property Iocated:Lessor County where property located: Cumberland Name of Contact Person at Facility where property located: LannyClark Does the Applicant hold any NC Division of Water Quality Permits? N Yes I ❑ No I Title: General Manager Phone Number: 910-48M396 If yes, please fist NCG140000, COCNCG 140375 issued 1/25/2008 Permit Nos : If approved, will this be the first Tax Certification issued for this Facility? If no, attach any previously issued tax ® Yes 1 ❑ No certifications B. Complete this Section only if the Operator/User of the facil' and a ui ment is different from the Owner of the facil' v-;m Cep—E Warne of Concrete Service Company, Inc. Operator/User: q 2W Operator/User 130 Builders Blvd. Fayetteville, NC 28301 Address: (address) (city) {zip) Operator/User Contact Lanny Clark, General Manager Name: Relabonship between 0 eratorlUser of facility and equipment and applicant Lessee `ATTACH A PROCESS SCHEMATIC TO YOUR APPLICATION The number of each item for which Tax Certification is being requested must be shown on the schematic*' } Application Continues on Next Page -� DIVISION OF .WATER QUALITY TAX CERTIFICATION & EXEMPTION APPLICATION Waste Treatment Systems & Equipment: Waste treatment systems & equipment must be used exclusively for the abatement of water pollution PAGE2 Rev05M 2007 Was o"M fiSW in I AsM Ntmbw, I I % D the fOf is this asset the Permit (YesINO) Vahide kknffr�on PoMAM ` Yaar of Original Flistorir a! replacm. a prior ♦ � FMI�� a an asp! is 98*d in dw UINO pwmq, tlw dsaafpdon muq p kbwA ml u H�d on 0" tuned pwrrit. M 0* CU44 it not spOCOcNDy ROOW In the UM pave I UW appdoWd must atdA dolled bdwmadw m W why dw assm atmuW gwtCy f« Tu CMt[hatiom When -rWybp sys ft— « parwd, oE7art fs not cweDy6rD dw cast of no agrdtmwd or"year at aV7dLWM Q Facilities: To qualify for tax certification, the building or section of building being applied for. must be used exclusively for water pollution prevention. A sketch of the building, square footage along with details as to how the for is used for water pollution prevention, is required. n ; Land: To qualify fort tax cer itication, the land must be used exclusively for water pollution prevention. A schematic diagram of the facility detailing the land being applied for is required. The amount of land (acreage) is required aAd how this land is being used to prevent water polution. For wastewater treatment and prigation system list separately the acreage used for actual treatment from the acreage required by the faciliiy s water quality permit for buffers and setbacks. SIGNATURE: C I hereby certify that the"above equipment, facilities and/or land are used for the purpose stated, and that the information presented in this application is accurate. Furthermore, I certify that any portable or mobile equipment listed is application "ll b used exclusively in the state of North Carolina Applicant Signature: ��yjy .�i'i uy / Lf' Title: 19'7 r Date: 1/—Z5—O9 NOTICE. The penalty for tales �rnent, representation or certification � f �*d nmrne also)Of: 4- SC P IGP_ �o�%�� � �G • herein includes imprisonment and I or the assessment of civil penalties. (Name of Appkant auusitess gratify) To-wo ATTACHMENT DWQ, --1 Description of Waste Treatment Systems or Equipment: ❑ Recycle screw and screens including pumps, electrical wiring, land concrete foundations, concrete pavement, concrete storage area, concrete settling basins, overflow pond with spillways, meters, valves, piping, engineering, installation and freight for reclaiming waste concrete and water. Pump, piping, electrical, real estate, engineering and installation for reclaiming cement slurry. ___ How is the equipment used for pollution abatement? ❑ Equipment is used to recycle and reclaim all waste water and waste concrete from ready concrete batch plant operations as well as storm water from plant site. DENFft n' FRO J" 19 2010 _ - :. a=•^;7 �,..;,."h:X=_A—t ot. 3W_ M—T a — .. s�.:+a. -: z- -�---- r• - - - . -.. - - t:. a -- _ _ W k�4 jr . . . . . . . . . . m i a ""' I " A toil m Qu' " - L,;-Vi I- V I '� e- I 4V il fi-9 lkj� k r. 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''t i ' f ''X' cj:{{� �� �t2q ��E �'� 3 ^ �{ � � a 9� • � u°f r : ,. �: •^ ' ':. � f i ; / M. r ^ Y, rrr"'�+'iq 'Ly�� �'f 4 1" 4i , �yy�� � �i t+� �.• _ � '�-'� i°{! �„'.� v' y 'S�`R�-� f., • Y,t,.,�-,•cTy� 4 [ '#�s'.- *Eyryy�k [ h r ; 1• �c`res"srsr.'7r a �♦.4 y f 4 t +�fi � 3 Y:4n " � �'�"E.� J1 � y'F' �rfR x� �' '�' ,�,a�� T?k��' sr ... ,� n Vd 95' _ y rt �}� � � %il i�'f�'i �{R+ i� 5+l •i�! /[� �� 1�� � i � / ,rnr�,, -•, �7w F. .i FH E T' t.'8!�'S•i;, k E� R�.r, i __ ff V, , .° it !�''4Vt%' 'Vera 1 - ++i }t• L�i ti Al IN y R r3: ��;�YM�i{1; d Ny ,t .. r� 1Z �Ar�R pG wa-11 M�ti �� Y Mr. Richard R. Allen, Sr. Concrete Service Company PO Drawer 1867 Fayetteville; NC 28302 Dear Mr. Allen: Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Colcen H. Sullins, Director Division of Water Quality January 25, 2008 DENR-FRO JAN 1 a 2008 DWQ Subject: General Permit No. NCG140000 Concrete Service Company COC No. NCG140375 Cumberland County In accordance with your application for a discharge permit received on January 11, 2 00 8, 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 dated May 9, 1994 (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 treatment facilities has been issued concurrently with this COC. The Fayetteville Regional Office, telephone number (910) 433-3300, 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 permitted 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. re'Carolina oNaturally North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-5083 Customer Service. Internet: www.ncwatcrq1!alitv.ore Location; 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-9612 I-877-623-6748 An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper Mr. Richard R. Allen, Sr. Concrete Service Company NCG 140375 January 25, 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 Robert Patterson at telephone number (919) 733-5083 ext. 360. Sincerely, for Coleen H. Sullins cc: Fayetteville Regional Office Central Files Stormwater Permitting Unit Files enclosure Mr: Ftichard R. Allen, Sr. Concrete Service Company NCG 140375 January 25, 2008 Engineer's Certification (COC. No. NCG140375) 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, for the Project Name Location Permtttee 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 Concrete Service Company Ready Mix site, I 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 Registration No. Date Mail this Certification to: 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 GENERAL PERMIT NO. NCG.140000 CERTIFICATE OF COVERAGE No. NCG140375 STORMWATER AND PROCESS WATER 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, Richard R. Allen, Sr. / Concrete Service Company is hereby authorized to discharge stormwater from a facility located at Concrete Service Company. W. Manchester Road Fayetteville Cumberland County to receiving waters designated as Tank Creek, a class C water in the Cape fear 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 January 25, 2008. This Certificate of Coverage shall remain in effect for the duration of the General Permit. Signed this 25`h day of January, 2008. for Coleen H. Sullins., Director Division of Water Quality By the Authority of the Environmental Management Commission UA IV4. A CA Ilk am V4 A{! 6 V Laro Concrete Service Company re IN Party . JA 7 nto HOZ VA NCG140375 N W *-E S I Map Scale 1:24,000 i I Richard R. Allen, Sr. Concrete Service Company Latitude: 351 11'24" N Longitude: 780 59'4211 w Receiving Stream: Tank Creek Stream Class: C Sub -basin: 03-06-14 (Cape Fear River Basin) Facility Location ALITO.VYWA Division of Water Quality / Surface Water Protection NCDENRNational -Pollutant Discharge Elimination System Er.�wa...errt .uo >ra„�w ar�cro N C G 140000 NOTICE OF INTENT FOR AGENCY USE ONLY Date Received Ye Month Da b Certificate of Covers e Check N ItAmount Permit Assigned to L National Pollutant Discharge Elimination System application for coverage under General Permit NCG 140000: STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as: SIC (Standard Industrial Classification) Code - 3273 Heady Mixed Concrete For new plant sites that will discharge or recycle process wastewater (even if commingled with stormwater): This NOI is also an APPLICATION FOR Authorization 10 Construct (ATC) wastewater treatment facilities. ATC requests must be submitted at least 90 days prior to construction'. For existing plant sites discharging or recycling process wastewater (even if commingled with stormwater): This N01 Is also an APPLICATION FOR Authorization to continue to operate wastewater treatment facilities in place. Construction, modification, or installation of any new treatment components at an existing site requires an ATC. Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures treating process wastewater flaws commingled with stormwater) require an ATC prior to construction per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the same time as the Certificate of Coverage (COC) for the NCG14 permit. Design of treatment facilities must comply with requirements of 15A NCAC 2H .0138 & .0139. Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant sites requires submission of three (3) sets of plans and specifications signed and sealed by a Professional Engineer.(P.E.) or qualified staff2 along with this application. A copy of the design calculations should be included. Please see questions 14 8 15. 'Ka I For questions, please contact the DWO Regional Office for your area. (See page 5) (Please print or type) ✓ 1) Mailing address of owner/operator (address to which all permit correspondence will be mailed): Name ►.tichard R. Allen Sr. Street Address P.O. Drawer 1867 City Fayetteville _ State NC ZIP Code 28302 Telephone No. (910) 323-8509 Fax: (910) 323-9379 ✓ 2) Location of facility producing discharge: Facility Name Concrete Service Company Facility Contact Laren H. Clark Street Address w. Manchester Road City Spring Lake State NC ZIP Code 28390 County Cumberland Telephone No. (910) 483-0396 Fax: (910) 486-6724 Page 1 of 5 'As per 15A NCAC 2Ff .0106 2Wless treatment facilities are designed, constructed, and I ernal to the company who are qualified to perform such work for their respective companies in accord a kFf der) to t .2 (7), plans and specifications must be signed and sealed by a P.E. JAN 1 1 2008 SWU-229-091007 Last revised 09110/07 is NCG140000 N.O.I. Travel N on NC Hwy 87 (N. Bragg Blvd,) from downtown Spring 3) Physical location information: Lake toward Sanford, NC. Make left turn onto W. Manchester Rd. Subject property is approx. 0.52 miles on left hand side. Please provide a narrative description of how to get to the facility (use street names, state road numbers, and distance and direction from a roadway intersection). (A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application.) ✓ 4) Latitude 35011 ' 24. 36" Longitude 78° 59' 41 .64" (deg, min, sec) 5) This NPDES Permit Application applies to which of the following: ® New or Proposed facility ❑ Existing 01 6) Standard Industrial Classification: Date operation is to begin 02/28/013 Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial activity at this facility SIC Code: 3 2 7 3 ✓ 7) Provide a brief description of the types of industrial activities and products produced at this facility: (Include a site diagram showing the process areas present at this facility.) Ready Mix concrete plant. Industrial activities include concrete reclaimation, truck wash, stockpile irrigation and plant wash down. 8) Discharge points / Receiving waters: Now many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the property? One What is the dame of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater and/or wastewater discharges end up in? ]little River If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm sewer system (e.g. City of Raleigh municipal storm sewer). No Receiving water classification (if known): Note: Discharge of process wastewater to receiving waters classified as WS-li to WS-V or SA must be approved by the N.C. Dept. of Environmental Health. If DEH does not approve, coverage under NCG140000 cannot be granted. No new discharges of process wastewater are permitted in receiving waters classified as WS-I or freshwater ORW. ✓ 9) Does this facility have any other NPDES permits? ® No ❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility: r 10) Does this facility have any Non -Discharge permits (ex: recycle permits)? I3 No O Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility: ✓ 11) Does this facility employ any best management practices for stormwater control? No ® Yes If yes, please briefly describe: General good housekeeping and a concrete reclaimation system, stormwaterpond and 2H adjustment unit designed to treat stormwater. Page 2 of 5 SW U-229.091007 last revised 09/07/2007 NCG140000 N.O.I. V 12) Does this facility have a Stormwater Pollution Prevention Plan? ❑ No U Yes If yes, when was it implemented? After construction is complete. - 13) Are vehicle maintenance activities occurring or planned at this facility? ® No ❑ Yes Wastewater Treatment Design Information 14) Are discharges occurring or planned from any of the following process wastewater generating activities? Vehicle and equipment cleaning E) Yes ❑ No Wetting of raw material stockpiles ® Yes ❑ No Mixing drum cleaning IRK) Yes ❑ No If yes to any of the above, please describe the type of process used to treat and/or recycle the process wastewater. Use of a reclaimation system, stormwater detention pond and pH adjustment VsFor a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface l_� area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH - 6-9 SU, Total Suspended Solids (TSS) - 30 mg/I, and Settleable Solids (SS) -- 5 mill.) [Use separate sheet(s)]. If all these discharges are recycled, please refer to Question 15. For lants that recycle and/or discharge process wastewater: When applying for this permit, you are also applying for an authorization to construct (new treatment facilities) or authorization to continue to operate (existing treatment facilities) as part of the NOI. For new sitesyou must submit three (3) sets ,of design plans and specifications with this application and provide supporting calculations that predict compliance of final discharge with permit limits. For.existing sites applicants should submit three (3) sets of plans and specs for facilities as -built and provide as many design details as possible, or submit a detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions, retention time, piping, settling basin details, etc. Please note: If new treatment systems are planned for an existing site, an ATC will be required prior to construction of those facilities. Plans/specs/calculations prepared by a P.E. and the request for an ATC may be submitted with this NOI, or separately at a later date. DWO may request the status of your plans for requesting an ATC upon Issuance of the COC. ✓ 15) Does the facility use or plan to use a recycle system? ® No ❑ Yes If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr) year, 24-hr rainfall event For a recycle system (regardless of when it overflows), please provide plans, calculations, and design specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of freeboard in design storm event, etc.). [Use separate sheet(s)]. ' For a sufficient application, the information must.demonstrate compliance of final discharge with permit effluent limits (pH - 6-9 SU, Total Suspended Solids (TSS) - 30 mg/l, and Settleable Solids (SS) - 5 ml/1), or must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr rainfall event plus one foot of freeboard under design operating conditions. Page 3 of 5 SWU-229-091007 Last revised 09/07/2007 NCG140000 N.O.I. 16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain? ® No ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.) f 17) Hazardous Waste: a) Is this facility a Hazardous Waste 'treatment, Storage, or Disposal Facility? ® No ❑ Yes b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of hazardous waste? ® No ❑ Yes c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of hazardous waste? ® No ❑ Yes d) If you answered yes to questions b. or c., please provide the following information: Type(s) of waste: NA How is material stored: Where is material stored: How many disposal shipments per year: Name of transport / disposal vendor: _ Vendor address: ,, 18) Certification: North Carolina General Statute 143-215.6 B(i) provides that: Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the [Environmental Managementl Commission implementing this Article shall be guilty 01 a Ctass 2 misdemeanor which may include a fine not to exceed ten thousand dollars ($10,000). l hereby request coverage under the referenced General Permit. I understand that coverage under this permit will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an individual permit. I certify that I am familiar with.the information contained in this application and that to the best of my knowledge and belief such information is true, complete, and accurate. Printed Na ryp of Title: C-4 r finA �Gfir (Date Signed) Notice of Intent must be accompanied by a check or money order for $100.00 made payable to: NCDENR Page 4 of 5 SWU-229-091007 Last revised 09/07/2007 NCG140000 N:O.I. Final Checklist This application will be returned as incomplete unless all of the following items have been included: ❑ Check for $100 made.payable to NCDENR. ❑ This completed application and all supporting documentation (including design details and calculations for treatment systems). ❑ If an Erosion & Sedimentation Control (E&SC) Plan is required from Division of Land Resources (DLR) t or local designee: documentation verifying applicant has developed and submitted that Plan to the governing agency (required per 15A NCAC 02H .0138). ❑ For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7). =� ❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including �1 recycle systems) as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions, retention time, piping, settling basin details, etc. ❑ A site map showing, at a minimum, (existing or proposed): (a) outline of drainage areas, (b) storm water/wastewater treatment structures, (c) location of stormwaterlwastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures, (e) areas where materials are stored, (f) impervious areas, and (g) site property lines. ❑ A county map or USGS quad sheet with location of facility clearly marked. Mail the entire package to: Stormwater Permitting Unit Division of Water Duality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Note The submission of this document does not guarantee the issuance of an NPDES permit. For questions, please contact the DWO Regional Office for your area. DWO Re tonal Office Contact Information: Asheville Office ...... (828) 296-4500 Fayetteville Office ... (910) 433-3300 Mooresville Office ... (704) 663-1699 Raleigh Office ........ (919) 791-4200 Washington Office ...(252) 946-6481 Wilmington Office... (910) 796-7215 Winston-Salem ...... (336) 771-5000 Central Office .........(919) 733-5083 Page 5 of 5 SW U-229.091007 Last reviser! 09/07/2007 4� REFERENCES: SCALE: i ;24,000 1, OVERHILLS, NC AND MANCHESTER, NC DIGITAL RASTER GRAPHIC FILES, US GEOLOGICAL SURVEY. SCANNED FROM 1:24,000-SCALE USGS TOPOGRAPHIC MAPS (OVERHILLS, NC, 1957 PHOTOREVISED 1971, AND MANCHESTER, NC, 1997), Feet 2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION Q ,00� 2,000 4,0�17 ATLAS, BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, O.C. DRAWN DATE: TOPOGRAPHIC SITE MAP BY:'�' JANUARY 2008 iD-ATLANTIC CONCRETE SERVICE COMPANY °RAFr JOB NO: ASSOCIATES. INC.WEST MANCHESTER ROAD CHECK: 000R1944.00 - ENG. GIS NO: Engineering & Emr'onmentnl Solutions SPRING LAKE, NORTH CAROLINA CHECK: 010-R1944.00-1 APPROVAL: DWG NO: 1 Mr. Richard R. Allen Sr. PO Drawer 1867 Fayetteville, North Carolina 28302 Dear Mr. Allen: Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen N. Sullins, Director Water Quality December 7, zoo7 DENR061�%of DEC f ) 2007 DWQ Subject: Return of NCG140000 NOI, #1166 Concrete Service Company - Spring Lake Cumberland County On December 5, 2007, the Division of Water Quality, Stormwater Permitting Unit received your Notice of Intent (NOI) to be covered under North Carolina's General Permit NCG140000, submitted for your proposed location on West Manchester Road in Spring Lake. Your submittal contained a check for $100, and three copies of: a transmittal letter from Crawford Design Company, the NOI application form, a site location map, a site layout drawing, Crawford's design notes and calculations, and DLR's approval letter for your erosion and sedimentation control plan. The submittal is significantly deficient, and we are returning it unprocessed. Please ask your engineer to make an appointment with me for a face-to-face explanation of the minimum submittal requirements. The submittal is deficient in the following particulars. 1. Site Plan. Please consider that as reviewers, we can't determine from the site plan whether the measures you are proposing are sufficient, or not, because the drawing does not present a complete picture of the site with respect to our typical Items of interest in a review, Instructions on the required content of the site plan are presented on page 5 of 5 of the NOI that you submitted. a. We cannot tell from the graphic presentation where the property lines are. b. The drainage areas are not delineated on the site plan. c. The location of stormwater and wastewater outfalls are not labeled as such. d. The limits of the aggregate storage areas are indistinct, and consequently; it is not clear to us that all drainage from the aggregate storage areas will enter the proposed large basin. e. It is not clear that all site stormwater discharge points are identified on the drawing. f. Also note at the same location in the NOI is the requirement that the site plan must show runoff conveyance features (like ditches, swales, runoff control berms, and pipes). We' are not confident that the site plan shows the full extent of the features on the site that may affect runoff flow direction. 2. Design Notes and design details a. The design notes Include a soils investigation report, but in the absence of a design narrative, it is not clear to us what the purpose of..the soils work is. The submittal presents the report, but then does not appear to present any design conclusion from the work. Further, if the work is presented in support of a design concept that Includes infiltration, please note that a single sample is not sufficient to characterize the infiltration value over the entire base of the proposed holding pond. Further, it appears that the soil sample was retrieved from an elevation significantly above the t�J110 Carolina �tura!(r� North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (9I9) 733-7059 Customer Service Internet: www.ncwaterqunlity.ora Location: 512 N. Salisbury St. Raleigh, NC 27604 fax (919) 733-9612 1-877-623-6748 An Equal OpportunitylAfnnative Action Employer— 50% Recycled/10% Post Consumer Paper Mr. Richard Allen Sr. Page 2 of 2 December 7, 2007 proposed base of the basin, calling into question the applicability of the single permeabllltymeasurement. D. The design notes include a pH test result, but in the absence of a design narrative, it Is not clear•to us what the purpose of the pH testing is. The submittal presents the pH testing, but then does not appear to present any design conclusion from the work. Further, it is not clear what Fluid the pH measurement pertains to. c. The design notes conclude that the large basin accommodates the 25-year rainfall volume, but the weir elevation on the site plan is 1.25' lower than the required elevation. The design conclusion is not supported by the design calculations. Further, please note that some means to empty the basin must be included In the design concept. d. Typically we see four wastewater sources at a ready -mix site: drum wash out, truck ,.wash off, aggregate pile drainage, and wash down from the truck loading area. The design notes address three of these typical sources, but the notes do not address wash down from the truck loading area. We must understand how you will deal with wash down flows from under the loading silo. e. Please note that six different configurations of the recycle system chambers are presented in the design notes and the site plan. It Is not clear to us which Is included in the design. Please limit your re -submittal. to the configuration that you actually wish us to permit. f. We note that the soils consultant reports a groundwater elevation of 6.5' below ground surface. From the site plan we see one spot elevation of 171.06'. Subtracting the measured depth to groundwater, we get a groundwater elevation potentially as high as 164.56' on the day It was measured. Given that North Carolina z'r Is experiencing the most severe drought in recorded history, with accompanying -- -groundwater table depression! it is not clear to -us how the -design of the basin -- - ; bottom at 164.50' acknowledges the likely increase in groundwater elevation, and the accompanying reduction in available basin volume under more normal conditions. ' Please incorporate this consideration in your re -submittal g. Please clarify for us the source of the fogging water that will be used to irrigate the aggregate piles. Please contact me with any questions or comments. Sincerely, Ken Pickle, P.E. DWQ Stormwater Permitting Unit (919) 733-5083x584 ken,pickle@ncma11.net Enclosures: Returned application package cc letter only: Adrianna Hegeman, Crawford Design Co, 914 Hay St., Fayetteville, NC 28305 bWQ Fayetteville Regional Office SPU County Files - Cumberland County