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Home My WebLink AboutNCG510399_Compliance Evaluation inspection Report_20230331ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Linda Blalock NCDEQ — DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 NORTH CAROLINA Environmental Quality March 30, 2023 SUBJECT: Compliance Evaluation Inspection NC General Wastewater Permit NCG510000 for Discharge of Wastewater from a Groundwater Remediation System Certificate of Coverage: NCG510399 for the Isaac's Tire and Service Center, Zionville, Watauga County, North Carolina Dear Ms. Blalock: Mr. Jim Gonsiewski of the North Carolina Division of Water Resources (DWR), Winston-Salem Regional Office (WSRO), visited the abovementioned facility on February 28, 2023 and met with Mr. Trevin Clough, Senior Environmental Technician of WithersRavenel to perform a compliance evaluation inspection on the facility's groundwater remediation system. Details of that inspection are included below. The remediation system currently at the site has been operating since 2016 based on directives by the NCDEQ Underground Storage Tank (UST) section. It is located in the Creekside Mobile Home Community. Currently sixteen (16) wells are located on and off site. The monitoring wells are sampled annually. The effluent is sampled quarterly if flow is coming into the system. A trench system was installed near the base of the hill at US Highway 421 to intersect the groundwater moving downgradient from Isaac's Tire and Service Center located east of the site across US Highway 421. The water collects in the trench and is gravity fed to the remediation trailer for treatment. The remediation system consists of an oil -water separator, an air stripper, a 25-micron bag filtration system, a carbon filtration system, and an underground batch tank. The remediation system appeared to be well maintained. The effluent sample collection point is located in the remediation trailer near the point where it exits the trailer to the holding tank located adjacent east of the system. The outfall for the 2-inch PVC effluent pipe that transports treated water from the remediation system by gravity is located west of the site. This outfall empties into an unnamed tributary to Sharp Creek. The system effluent was last sampled on November 16, 2022. Effluent laboratory analytical results were reviewed from October 28, 2020 to November 16, 2022. It was noted during the inspection that lead was not reported in the results from the sample collected North Carolina Department of Environmental Quality I Division of Water Resources E Q Winston-Salem Regional Office 1 450 W. Hanes Mill Rd, Suite 300 1 Winston-Salem, North Carolina 27105 NORT CalIWNA — 336.776.9800 0epsr-ofEmtronmmIII au.� on September 1, 2021. Additionally, the detection limits for lead exceeded the NPDES Daily Effluent Maximum of 3 ug/L in the samples collected on October 28, 2020, February 23, 2022, September 7, 2022, and November 16, 2022. The detection limit for toluene exceeded the NPDES Daily Effluent Maximum of 0.36 ug/L in all samples collected. Please ensure that all required constituents are analyzed and reported and that laboratory detection limits do not exceed the NPDES Daily Effluent Maximums, per the permit requirements. Thank you for your cooperation in this matter. If you have any questions or concerns, please contact Jim Gonsiewski by phone at 336-776-9704, or by email at jim.gonsiewskigricdenngov. Sincerely, E DocuSlpned by: 0� T. SMit, t45849E225c94EA... Lon T. Snider Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ - WSRO Attachments: 1. NCG510000 General Wastewater Permit 2. NCG510000 Technical Bulletin 3. EPA Water Compliance Inspection Report cc: Flora D'Souza— WithersRavenel (Electronic Copy) North Carolina Department of Environmental Quality I Division of Water Resources D E Q Winston-Salem Regional Office 1 450 W. Hanes Mill Rd, Suite 300 1 Winston-Salem, North Carolina 27105 WG 1 CAW)•'r`'A 336.776.9800 oon.ronam or rnvrmxmmimi Uu.nry United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 15 I 3 I NCG510399 I11 12 23/02/27 117 181 � I 191 S 1 201 I 21111I I I I I I I II I1 11 l l l l l l l l l l l l l l I I I I I II I I I I I f6 Inspection Work Days Facility Self -Monitoring Evaluation Rating 61 QA------- ----Reserved-------- 67 7071 L_] 72 1 N 1 731 1 174 79 I I I I I I I80 LJ LJ I I Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 10:50AM 23/02/27 21/03/03 Isaac's Tire & Service Center site Exit Time/Date Permit Expiration Date 9638 US Hwy 421 11:58AM 23/02/27 25/09/30 Zionville NC 28698 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Linda Blalock,1646 Mail Serivice Ctr Raleigh NC 276991646//919-707-8165/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit N Operations & Maintenar E Records/Reports Facility Site Review Effluent/Receiving Wate Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Jim J Gonsiewski Docusigned by: DWR/Division of Water Quality/336-776-9704/ 3/30/2023 �.,, Qovls-�uXiCt 97B66F179D45F... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date DocuSigned by: 3/30/2023 - T. `'5mJcr FL \— 145B49E225C94EA... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type (Cont.) 1 31 NCG510399 I11 12 23/02/27 117 18 ICI Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Mr. Jim Gonsiewski of the North Carolina Division of Water Resources (DWR), Winston-Salem Regional Office (WSRO), visited the facility on February 28, 2023 and met with Mr. Trevin Clough, Senior Environmental Technician of WithersRavenel to perform a compliance evaluation inspection on the facility's groundwater remediation system. Arrived on site at 10:50 AM. The remediation system currently at the site has been operating since 2016 based on directives by the NCDEQ Underground Storage Tank (UST) section. It is located in the Creekside Mobile Home Community. Currently sixteen (16) wells are located on and off site. The monitoring wells are sampled annually. The effluent is sampled quarterly if flow is coming into the system. A trench system was installed near the base of the hill at US Highway 421 to intersect the groundwater moving downgradient from Isaac's Tire and Service Center located east of the site across US Highway 421. The water collects in the trench and is gravity fed to the remediation trailer for treatment. The remediation system consists of an oil -water separator, an air stripper, a 25-micron bag filtration system, a carbon filtration system, and an underground batch tank. The remediation system appeared to be well maintained. The effluent sample collection point is located in the remediation trailer near the point where it exits the trailer to the holding tank located adjacent east of the system. The outfall for the 2-inch PVC effluent pipe that transports treated water from the remediation system by gravity is located west of the site. This outfall empties into an unnamed tributary to Sharp Creek. The system effluent was last sampled on November 16, 2022. Effluent laboratory analytical results were reviewed from October 28, 2020 to November 16, 2022. It was noted during the inspection that lead was not reported in the results from the sample collected on September 1, 2021. Additionally, the detection limits for lead exceeded the NPDES Daily Effluent Maximum of 3 ug/L in the samples collected on October 28, 2020, February 23, 2022, September 7, 2022, and November 16, 2022. The detection limit for toluene exceeded the NPDES Daily Effluent Maximum of 0.36 ug/L in all samples collected. Please ensure that all required constituents are analyzed and reported and that laboratory detection limits do not exceed the NPDES Daily Effluent Maximums, per the permit requirements. Left the site at 11:58 AM Page# Permit: NCG510399 Inspection Date: 02/27/2023 Owner - Facility: Isaac's Tire & Service Center site Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ M ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Permit (If the present permit expires in 6 months or less). Has the permittee submitted a new application? Is the facility as described in the permit? # Are there any special conditions for the permit? Is access to the plant site restricted to the general public? Is the inspector granted access to all areas for inspection? Comment: See comments Yes No NA NE ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 3