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Home My WebLink AboutWQ0031712_NOV-2022-PC-0248_20220427ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Ron Sink, General Manager Davidson Water, Inc. P.O. Box 969 Welcome, NC 27374 NORTH CAROLINA Environmental Quality April 27, 2022 SUBJECT: Notice of Violation (NOV-2022-PC-0248) Review of 2021 Residuals Annual Report Davidson Water, Distribution of Class A Residuals Permit No. WQ0031712 Davidson County Dear Mr. Sink: Division of Water Resources staff Caitlin Caudle completed a review of the 2021 Residuals Annual Report. This review reflected non-compliance with the subject permit. The following violation was noted: 1. Based on the information provided in the 2021 Annual Report, the total dry tonnage applied for the source Davidson Water WTP was over the permitted limit. The dry tonnage applied based on the annual report was 772.36 tons. The permitted amount for this facility is 566 dry tons per year. If application activities are expected to be greater than 566 dry tons per year moving forward, please submit a permit modification application to increase the permitted dry tons for this facility. Please notify the Winston Salem Regional Office prior to your next land application event that is planned to occur to allow for a routine compliance inspection. GDE NORTH CAROLINA ' D. mmm�� .ore�nt o�.i North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Winston-Salem, North Carolina 27105 336.776.9800 Refer to the enclosed inspection report for additional comments and observations. If you have any questions, please contact Caitlin Caudle at the letterhead address or phone number, or by email at caitlin.caudle@ncdenr.gov. Sincerely, DocuSiiggned by:by� %A. t . 5A,aGf 145B49E225C94EA... Lon T. Snider, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ-WSRO Enc: Inspection Report Cc: Brent Collins, EMA Resources, Inc. (electronic copy) Davidson County Environmental Health (electronic copy) Laserfiche File WQ0031712 WSRO Electronic Files D_E NORTH CAROLINA gaparMeM of Environment,/quay North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Raleigh, North Carolina 27105 336.776.9800 Compliance Inspection Report Permit: WQ0031712 Effective: 06/01/21 Expiration: 02/29/28 Owner : Davidson Water Inc SOC: Effective: Expiration: Facility: Davidson Water DCAR County: Davidson Region: Winston-Salem Contact Person: Ron Sink Directions to Facility: Title: General Manager Phone: 336-764-2534 System Classifications: Primary ORC: Certification: Phone: Secondary ORC(s): On -Site Representative(s): Related Permits: NCG590021 Davidson Water Inc - Davidson Water WTP Inspection Date: 04/22/2022 Entry Time 10:OOAM Exit Time: 12:30PM Primary Inspector: Caitlin Caudle Phone: 336-776-9699 Secondary Inspector(s): Reason for Inspection: Routine Inspection Type: Annual Report Review Permit Inspection Type: Distribution of Residual Solids (503 Exempt) Facility Status: ❑ Compliant Not Compliant Question Areas: Miscellaneous Questions Record Keeping Sampling II Pathogen and Vector Attraction (See attachment summary) Page 1 of 4 Permit: WQ0031712 Owner - Facility: Davidson Water Inc Inspection Date: 04/22/2022 Inspection Type : Annual Report Review Reason for Visit: Routine Inspection Summary: Division of Water Resources staff Caitlin Caudle completed a review of the 2021 Residuals Annual Report. This review reflected non-compliance with the subject permit. The following violation was noted: 1. Based on the information provided in the 2021 Annual Report, the total dry tonnage applied for the source Davidson Water WTP was over the permitted limit. The dry tonnage applied based on the annual report was 772.36 tons. The permitted amount for this facility is 566 dry tons per year. If application activities are expected to be greater than 566 dry tons per year moving forward, please submit a permit modification application to increase the permitted dry tons for this facility. Please notify the Winston Salem Regional Office prior to your next land application event that is planned to occur to allow for a routine compliance inspection. Other observations: • TCLP was not completed in the 2021 calendar year. TCLP is required once per permit cycle. • Residuals were applied to DV-08-07, 09, and 10 in the WQ0010583 Davie County RLAP permit. Application events occurred in May, September, and December. • Quarterly or 4x year sampling was required. Sampling was completed on 5/3 and 10/19. On 10/19 samples were collected for liquid residuals and cake residuals, and one sample was labeled as clean out. • All pH values were less than 6. • PAN for DV08-07 and 09 were reported as 198 Ib/ac. According to NCSU RYE database the PAN for these fields is 188 Ib/ac. Page 2 of 4 Permit: WQ0031712 Owner - Facility: Davidson Water Inc Inspection Date: 04/22/2022 Inspection Type : Annual Report Review Reason for Visit: Routine Type Land Application Distribution and Marketing Record Keeping Is GW monitoring being conducted, if required? Are GW samples from all MWs sampled for all required parameters? Are there any GW quality violations? Is GW-59A certification form completed for facility? Is a copy of current permit on -site? Are current metals and nutrient analysis available? Are nutrient and metal loading calculating most limiting parameters? a. TCLP analysis? b. SSFA (Standard Soil Fertility Analysis)? Are PAN balances being maintained? Are PAN balances within permit limits? Has land application equipment been calibrated? Are there pH records for alkaline stabilization? Are there pH records for the land application site? Are nutrient/crop removal practices in place? Do lab sheets support data reported on Residual Analysis Summary? Are hauling records available? Are hauling records maintained and up-to-date? # Has permittee been free of public complaints in last 12 months? Has application occurred during Seasonal Restriction window? Comment: Pathogen and Vector Attraction a. Fecal coliform SM 9221 E (Class A or B) Class A, all test must be <1000 MPN/dry gram Geometric mean of 7 samples per monitoring period for class B<2.0*10E6 CFU/dry gram Fecal coliform SM 9222 D (Class B only) Geometric mean of 7 samples per monitoring period for class B<2.0*10E6 CFU/dry gram b. pH records for alkaline stabilization (Class A) c. pH records for alkaline stabilization (Class B) Temperature corrected d. Salmonella (Class A, all test must be < 3MPN/4 gram day) Yes No NA NE El • Yes No NA NE ❑ ❑ • ❑ ❑ ❑ • ❑ • ▪ ❑ ❑ ❑ ❑ ❑ ❑ ▪ ❑ ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ Yes No NA NE ❑ ❑ • ❑ Page 3 of 4 Permit: WQ0031712 Owner - Facility: Davidson Water Inc Inspection Date: 04/22/2022 Inspection Type : Annual Report Review Reason for Visit: Routine e. Time/Temp on: Digester (MCRT) Compost Class A lime stabilization f. Volatile Solids Calculations g. Bench -top Aerobic/Anaerobic digestion results Comment: Not 503 Sampling Describe sampling: Is sampling adequate? Is sampling representative? Comment: Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ Page 4 of 4