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Home My WebLink AboutNCG020596_2021 DMR_20211130CDM Smith 5400 Glenwood Avenue, Suite 400 Raleigh, North Carolina 27612 tel: 919-787-5620 fax: 919-781-5730 November 30, 2021 North Carolina Department of Environmental Quality Division of Energy, Mineral, and Land Resources Washington Regional Office 943 Washington Square Mall Washington, North Carolina 27889 Subject: Quarterly Stormwater and Wastewater Discharge Monitoring Report Monitoring Period: July 1— September 30, 2021 Dare County C&D Landfill Borrow Pit Certificate of Coverage Number— NCG020596 To the NPDES Industrial Program: CDM Smith Inc., on behalf of Dare County (County), is submitting one copy of the Stormwater and Wastewater Discharge Monitoring Report for the period of July 1— September 30, 2021. A copy of the discharge monitoring report has been uploaded to the eDMR system. Samples were collected from Outfall 1 which serves as the outfall for both stormwater and wastewater on September 29, 2021. Samples were analyzed for pH, total suspended solids, settleable solids, and turbidity. pH was detected below the standard at 5.8, but was also detected below the benchmark value upstream of the stormwater and wastewater discharge points (Outfall 4; pH of 5.6). The pH in Outfall 1 is not considered an exceedance due to the upstream conditions. If you have any questions or require further explanation, do not hesitate to call me at (919) 325-3532. Sincerely, Aaron M. Weispfenning, P.E. CDM Smith Inc. cc: Shanna Fulmer, Dare County WATER + ENVIRONMENT +TRANSPORTATION + ENERGY + FACILITIES 40 NCDEQ Division of Energy, Mineral and Land Resources Stormwater Discharge Monitoring Report (DMR) Form for NCG020000 Active and Inactive Mining Sites Click here for instructions Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report (DMR) Upload form within 30 days of receiving sampling results. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office. Certificate of Coverage No. NCG02 0596 Person Collecting Samples: Jonathan Deweese Facility Name: Dare Cc - C&D Landfill Borrow Pit Laboratory Name: Environmental Chemists, Inc. Facility County: Dare Laboratory Cert. No.: 628 Discharge during this period:✓ Yes ❑ No (if no, skip to signature and date) Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances? ❑ Yes ❑✓ No If so, which Tier (I, II, or III)? A copy of this DMR has been uploaded electronically via https://edocs.deg.nc.gov/Forms/SW-DMR ❑✓ Yes ❑ No Date Uploaded: 11-30-21 Analytical Monitoring Requirements for Outfalls with Industrial Activities — Benchmarks in (Red) Parameter Parameter Outfall 1 Outfall Outfall Outfall Outfall Code N/A Receiving Stream Class HQw N/A Date Sample Collected MM/DD/YYYY 09/29/2021 46529 24-Hour Rainfall in inches 0.3 C0530 TSS in mg/L (100 or 50*) 6.5 00070 Turbidity of discharge** 9.4 - Turbidity downstream of discharge** NA - Turbidity upstream of discharge** NA Additional parameters for outfalls in drainage areas that use >55 gallons per month of new hydraulic oil on average Estimated New Motor/Hydraulic Oil NCOIL Usage in gal/month NA 00552 Non -Polar Oil & Grease in mg/L (15) NA Additional parameters for Clay Mines Aluminum, total in mg/L (0.75 FW, 01105 0.24 SW) NA Zinc, total (as Zn) in mg/L (0.126 FW, 01092 0.095 SW) NA 00951 Fluoride, total in mg/L (6.0) NA 00900 Hardness, total NA pH, in standard units (6.0-9.0 FW, 00400 6.8-8.5 SW) NA Antimony, total in mg/L (0.34 FW, 01097 N/A SW) NA Arsenic, total in mg/L (0.15 FW, 0.069 01002 SW) NA Chromium III in mg/L (0.905 FW, N/A C0034 SW) NA Additional parameters for Feldspar Ore Mines Aluminum, total in mg/L (0.75 FW, 01105 0.24 SW) NA Zinc, total (as Zn) in mg/L (0.126 FW, 01092 0.095 SW) NA 00951 Fluoride, total in mg/L (6.0) NA Additional parameters for Lithium Ore Mines 01105 Aluminum, total in mg/L (0.75 FW, 0.24 SW) NA 00951 Fluoride, total in mg/L (6.0) NA Additional parameters for Phosphate Mines 00951 IFluoride, total in mg/L (6.0) NA 39344 1 Alpha, Gross Particle Activity NA Additional parameters for Industrial Sand Mines 00951 Fluoride, total in mg/L (6.0) NA 1CO0334 Chromium III in mg/L (0.905 FW, N/A SW) NA 39344 Alpha, Gross Particle Activity NA _ • Outfalls to Outstanding Resource Waters (ORW), High Quality Waters (HQW), Trout Waters (Tr) and Primary Nursery Areas (PNA) have a benchmark TSS limit of 50 mg/L. All other water classifications have a benchmark of 100 mg/L •' See F-5 of the NCG020000 General Permit for turbidity requirements. FW (Freshwater) SW (Saltwater) Notes (optional): Reporting Period of July 1 - September 30 "I certify by my signature below, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the st of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false informatigs,including the possibiliV of fine5, and imprisonment for knowing violations." Signature df-Wrmittee or shanna@darenc.gov Email Address { -,,-G. ividual Date 252-475-5844 Phone Number NCDEQ Division of Energy, Mineral and Land Resources Wastewater Discharge Monitoring Report (DMR) Form for NCG020000 Active and Inactive Mining Sites Click here for instructions Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report (DMR) Upload form within 30 days of receiving sampling results. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office. Certificate of Coverage No. NCG02 0596 Person Collecting Samples: Jonathan Deweese Facility Name: Dare Cc - C&D Landfill Borrow Pit Laboratory Name: Environmental Chemists, Inc. Facility County: Dare Laboratory Cert. No.: 628 Discharge during this period: El Yes D No (if no, skip to signature and date) Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances? El Yes 0 No If so, which Tier (I, II, or III)? A copy of this DMR has been uploaded electronically via https://edocs.deg.nc.gov/Forms/SW-DMR 0 Yes No Date Uploaded: 11-30-21 Analytical Monitoring Requirements for Outfalls with Industrial Activities— Monthly Average Effluent Limits in (Blue), Daily Maximum Effluent Limits in (Red) Parameter Parameter Outfall 1 Outfall Outfall Outfall Outfall Code N/A Receiving Stream Class HQw N/A Date Sample Collected MM/DD/YYYY 09/29/2021 00400 pH (6.0-9.0 FW, 6.8-8.5 SW) 5.8 TSS in mg/L (25, 20, or 10 a) (45, 30, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily C0530 15 a) NA 6.5 00070 Turbidity of discharge b 9.4 - Turbidity downstream of discharge b NA - Turbidity upstream of discharge b NA 00545 Settleable Solids in mg/L (0.1), (0.2)` Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily NA <0.1 31616 Fecal Coliform d NA 61211 Enterococcuse NA - Daily Flow Rate in cfs (50% of 7Q10) 2.8 Additional parameters for Clay Mines Aluminum, total in mg/L (0.30 FW, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01105 0.24 SW) (0.75 FW, 0.24 SW) NA NA Zinc, total (as Zn) in mg/L (0.126 FW, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01092 0.095 SW) (0.126 FW, 0.095 SW) NA NA Fluoride, total in mg/L (6.0) (6.0) Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 00951 NA NA 00900 Hardness, total NA Antimony, total in mg/L (0.34 FW, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01097 n/a SW) (0.34 FW, n/a SW) NA NA Arsenic, total in mg/L (0.15 FW, 0.065 Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01002 SW) (0.15 FW, 0.069 SW) NA NA Chromium III in mg/L (0.117 FW, n/a Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily C0034 SW) (0.905 FW, n/a SW) NA NA Additional parameters for Feldspar Ore Mines Aluminum, total in mg/L (0.30 FW, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01105 0.24 SW) (0.75 FW, 0.24 SW) NA NA Zinc, total (as Zn) in mg/L (0.126 FW, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01092 0.095 SW) (0.126 FW, 0.095 SW) NA NA Fluoride, total in mg/L (6.0) (6.0) Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 00951 NA NA Additional parameters for Lithium Ore Mines Aluminum, total in mg/L (0.30 FW, Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 01105 0.24 SW) (0.75 FW, 0.24 SW) NA NA Fluoride, total in mg/L (6.0) (6.0) Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 00951 NA NA Additional parameters for Phosphate Mines Fluoride, total in mg/L (6.0) (6.0) Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 00951 NA NA Alpha, Gross Particle Activity Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 39344 NA NA Additional parameters for Industrial Sand Mines Fluoride, total in mg/L (6.0) (6.0) Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 00951 NA NA Chromium III in mg/L (0.117 FW, n/a Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily C00334 SW) (0.905 FW, n/a SW) NA NA Alpha, Gross Particle Activity Avg Daily Avg Daily Avg Daily Avg Daily Avg Daily 39344 NA NA a) Outfalls to Outstanding Resource Waters (ORW) and High Quality Waters (HQW) have a Monthly Average Effluent Limit for TSS of 20 mg/L and a Daily Maximum Effluent Limit of 30 mg/L. Outfalls to Trout Waters (Tr) and Primary Nursery Areas (PNA) have a Monthly Average Effluent Limit for TSS of 30 mg/L and a Daily Maximum Effluent Limit of 15 mg/L. Industrial Sand and Phosphate mines discharging to all other water classification have a Monthly Average Effluent Limit for TSS of 25 mg/L and a Daily Maximum Effluent Limit of 45 mg/L. b) See H-5 of the NCG020000 General Permit for turbidity requirements. c) Only outfalls to HQW, ORW, SA, SB, PNA, or Tr waters are required to monitor for Settleable Solids. d) Only outfalls to SA waters are required to monitor for Fecal Coliform e) Only outfalls to SA, SB, and SC waters are required to monitor for Enterococcus FW (Freshwater) SW (Saltwater) Notes (optional): Reporling PwW of July 1 - September 30 "I certify by my signature below, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of Zon, son or persons who manage the system, or those persons directly responsible for gathering the information, the information submittedhe best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false infor including the possipqty of finfs and imprisonment for knowing violations." Signaturd) �Kmittee or DelegakedNAhthorized Individual shanna@darenc.gov Email Address Date 252-475-5844 Phone Number Environmental Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environmentalchemists.com Dare Co. Public Works Date of Report: Oct 06, 2021 Post Office Box 1000 Manteo Report #: Manteo NC 27954 Report #: 2021-17165 Attention: Customer ID: 11120018 Project ID: Lab ID Sample ID: M-3327 Collect Date/Time Matrix Sampled by 21-43166 Site: Dirt Pit 9/29/2021 11:55 AM Water Client Test Method Results Date Analyzed Residue Suspended (TSS) SM 2540 D-2015 6.5 mg/L 09/30/2021 Residue Settleable (SS) SM 2540 F-2015 <0.1 ml/L 09/29/2021 pH SM 4500 H B-2011 5.8 units 09/29/2021 Result estimated. Analyzed out of 15 minutes hold time. Lab ID Sample ID: Collect Date/Time Matrix Sampled by 21-43167 Site: Dirt Pit 9/29/2021 11:55 AM Water Client Test Method Results Date Analyzed Turbidity SM 2130 B-2011 9.4 NTU 09/30/2021 Lab ID Sample ID: M-3328 Collect Date/Time Matrix Sampled by 21-43168 Site: Landill 9/29/2021 11:30 AM Water Client Test Method Results Date Analyzed Fecal Coliform Idexx Colilert-1 8 >2420 MPN/100ml 09/29/2021 Residue Suspended (TSS) SM 2540 D-2015 13.7 mg/L 09/30/2021 pH SM 4500 H B-2011 6.7 units 09/29/2021 Result estimated. Analyzed out of 15 minutes hold time. Lab ID Sample ID: Collect Date/Time Matrix Sampled by 21-43169 Site: Landill 9/29/2021 11:30 AM Water Client Test Method Results Date Analyzed COD SM 5220 D-2011 90.0 mg/L 10/01/2021 Lab ID Sample ID: M-3329 Collect Date/Time Matrix Sampled by 21-43170 Site: Outfall 2 9/29/2021 11:42 AM Water Client Test Method Results Date Analyzed Fecal Coliform IdexxColilert-18 138 MPN/100ml 09/29/2021 Residue Suspended (TSS) SM 2540 D-2015 6.2 mg/L 09/30/2021 pH SM 4500 H B-2011 5.3 units 09/29/2021 Result estimated. Analyzed out of 15 minutes hold time. Report #::2021-17165 Page 1 of 2 F"0'0' -- 41 (Sg- ANALYTICAL & CONSULTING CHEMISTS Dare Co. Public Works Post Office Box 1000 Manteo Attention: Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentalchemists.com Date of Report: Oct 06, 2021 Manteo Report #: NC 27954 Report #: 2021-17165 Customer ID: 11120018 Project ID: Lab ID Sample ID: Collect Date/Time Matrix Sampled by 21-43171 Site: Outfall 2 9/29/2021 11:42 AM Water Client Test Method Results Date Analyzed COD SM 5220 D-2011 156 mg/L 10/01/2021 Comment: f Reviewed by: W�A20L Report #::2021-17165 Page 2 of 2 r - 7 Environmental Chemists, Inc. '77 envirochem6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab + 910.392.4424 Fax sM 710 Bowsertown Road, Manteo, NC 27954 + 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environmentalchemists.com Dare Co. Public Works Date of Report: Oct 06, 2021 Post Office Box 1000 Manteo Report #: 21 M-2025 Manteo NC 27954 Report #: 2021-17164 Attention: Customer ID: 11120018 Project ID: C&D Landfill Lab ID Sample ID: Collect Date/Time Matrix Sampled by 21-43164 Site: Outfall4 9/29/2021 11:51 AM Water Client Test Method Results Date Analyzed COD SM 5220 D-2011 143 mg/L 10/01/2021 Lab ID Sample ID: M-3330 Collect Date/Time Matrix Sampled by 21-43165 Site: Outfall4 9/29/2021 11:51 AM Water Client Test Method Results Date Analyzed Fecal Coliform Idemc Colilert-18 11 MPN/100ml 09/29/2021 Residue Suspended (TSS) SM 2540 D-2015 6.1 mg/L 09/30/2021 pH SM 4500 H B-2011 5.6 units 09/29/2021 Result estimated. Analyzed out of 15 minutes hold time. Comment: Reviewed by:&aA)b Report #::2021-17164 Page 1 of 1