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Home My WebLink AboutNC0062219_Compliance Evaluation Inspection_20230301ROY COOPER Govemor ELIZABETH S. BISER secretary RICHARD E. ROGERS, JR. Dtrectnr NORTH CAROLINA Ent+tnonmental Quality March 1, 2023 Don Denton, President Carolina Water Service Inc. of North Carolina 4944 Parkway Plaza Blvd. Ste. 375 Charlotte, NC 28217 Subject: Compliance Evaluation Inspection Kings Grant S/D WWTP NPDES Permit No. NCO062219 Wake County Dear Mr. Denton: On February 23, 2023, Mitch Hayes of the Raleigh Regional Office conducted the subject inspection with the assistance of Brandon Baldwin, Operator in Responsible Charge. Below is a list of findings developed from the inspection and review of the permit. 1. The current permit was reissued and became effective April 1, 2018 and will expire March 31, 2023. A permit renewal application is currently under review. Please continue to operate under the last issued permit until a new permit is issued. 2. The 0.07 MGD facility consists of the following units: Influent pump station; manual bar screen; diffused aeration basin (72,000 gallons); clarifier (11,000 gallons); sludge holding tank (6,000 gallons); UV disinfection; cascade aeration; effluent flow measurement; portable generator for back up power. All units were accounted for and in operation. Mixed liquor in the aeration basin appeared chocolate brown in color. All blowers were operational. There were no dead spots. Foam covered approximately 20% of the surface. Effluent flowing off the secondary weirs appeared clear. UV banks were operational. There was no discharge at the time of inspection. Water in the creek appeared clear with no detrimental effects from previous discharges. The digester will be pumped out next week. Carolina Water Service Labs, certification number 5161, is field certified for pH and DO. Eurof ns, formally ENCO labs, analyzes all other parameters. All pH buffers were within expiration date. Field calibration sheets for DO and pH are kept up to date. 4. An Authorization to Construct was issued February 22, 2023 for the installation of a new precast concrete valve vault for the existing pump station; replacement of existing influent pumps with two — 125GPM influent pumps; replacement of manual bar screen with one 0.175 MGD manual bar screen; replacement of existing closed pipe UV system with two in series open channel UV banks with eight lamps per bank; replacement of existing D North Carolina Department of Environmental Quality I Division of Water Resources Raleigh Regional Ogee 1 3800 Barrett Drive I Raleigh, North Carolina 27609 �� 919 791.4200 effluent flow meter and installation of one new effluent flow measurement flume; demolition of a steel chlorination tank. 5. Discharge Monitoring Reports (DMRs) were reviewed for compliance and monitoring requirements for the period December 2018 through January 2023. The following were noted: daily maximum permit limit violation for fecal coliform on 07.14.2020. 6. Commercial lab results, chain of custody records, and bench sheets were compared with data submitted on the DMR for January 2023. No discrepancies were noted. 1 would like to thank Brandon Baldwin for his time and assistance with this inspection. if you have any questions about the inspection or this letter, please contact Mitch Hayes at 919.791.4261 or at mitch.hayes@,,ncdenr.gov . Sincerely, Vanessa E. Manuel, Assistant Regional Supervisor Raleigh Regional Office Division of Water Resources NC - DEQ North Carolina Department of Environmental Quality I Division of Water Resources 4�XD,512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699.1611 ,,,4�V419.7t17.9t100 United Stales 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 yrlmo/day Inspection Type Inspector Fac Type 1 Iti I 2 IS I 3 I NCO062219 � 11 121 23/02/23 I17 18 Ll 191 S I 201 I 21111111 I111111111111111111 I 11111 11111111111 r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 67 70LJ 71 liI 72 LNJ 73J 74 7 1 1 1 1 1 11 80 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 hermit Number) 10:30AM 23102/23 18/04/01 Kings Grant Subdivision WWTP 4817 Mial Plantation Rd Exit Time/Date permit Expiration Date Raleigh NC 27610 11:30AM 23/02/23 23/03/31 Name(s) of Onsite Representadve(s)trtles(syPhons and Fax Number(s) Other Facility Data 1/1 Brandon Dale Baldwinl/919-266-9881 / Brandon Dale Baldwin/ORC/919-437-77151 Name, Address of Responsible Official/Ti le/Phone and Fax Number James T Highley,PO Box 240908 Charlotte NC 282240908/1704-525-7990/7045258174 Contacted No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Records/Reports Self -Monitoring Progran Facility Site Review 0 Effluent/Receiving Wate Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Names) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Mitchell S Hayes DWRIRRO WQ/919-791-4200/ V4_,J�ag �7 W,2 -7 Signature of Management Q A Reviewer Agency/Office/Phone Fax Numbers Date Land EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES Wmolday Inspection Type (Cont.) NCO062219 111 1 23/02/23 17 18 I C I Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The current permit was reissued and became effective April 1, 2018 and will expire March 31, 2023. A permit renewal application is currently under review. Please continue to operate under the last issued permit until a new permit is issued. The 0.07 MGD facility consists of the following units: Influent pump station; manual bar screen; diffused aeration basin (72,000 gallons); clarifier (11,000 gallons); sludge holding tank (6,000 gallons); UV disinfection; cascade aeration; effluent flow measurement; portable generator for back up power. All units were accounted for and in operation. Mixed liquor in the aeration basin appeared chocolate brown in color. All blowers were operational. There were no dead spots. Foam covered approximately 20% of the surface. Effluent flowing off the secondary weirs appeared clear. UV banks were operational. There was no discharge at the time of inspection. Water in the creek appeared clear with no detrimental effects from previous discharges. The digester will be pumped out next week. Carolina Water Service Labs, certification number 5161, is field certified for pH and DO. Eurofins, formally ENCO labs, analyzes all other parameters. All pH buffers were within expiration date. Field calibration sheets for DO and pH are kept up to date. An Authorization to Construct was issued February 22, 2023 for the installation of a new precast concrete valve vault for the existing pump station; replacement of existing influent pumps with two — 125GPM influent pumps; replacement of manual bar screen with one 0.175 MGD manual bar screen; replacement of existing closed pipe UV system with two in series open channel UV banks with eight lamps per bank; replacement of existing effluent flow meter and installation of one new effluent flow measurement flume; demolition of a steel chlorination tank. Discharge Monitoring Reports (DMRs) were reviewed for compliance and monitoring requirements for the period December 2018 through January 2023. The following were noted: daily maximum permit limit violation for fecal coliform on 07.14.2020. Commercial lab results, chain of custody records, and bench sheets were compared with data submitted on the DMR for January 2023. No discrepancies were noted. Page# 2 Permit: NCO062219 Owner - Facflity: Inspection Date: 02/2312023 Inspection Type: Kings Grant Subdivision WWTP Compliance Evaluation Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new so ❑ ❑ application? Is the facility as described in the permit? M ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ❑ M ❑ Is access to the plant site restricted to the general public? EEI ❑ ❑ Is the inspector granted access to all areas for inspection? ❑ ❑ ❑ Comment: Permit expires March 31 2023. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? M ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ Dates, times and location of sampling Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Transported COCs Are DMRs complete: do they include all permit parameters? ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ 0 ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified ❑ ❑ 0 ❑ operator on each shift? Is the ORC visitation log available and current? M ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility ❑ ❑ ❑ classification? Is a copy of the current NPDES permit available on site? ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ Comment: Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? M ❑ ❑ ❑ Page# 3 Permit: NC0062219 Inspection Date: 02/2312023 Effluent Pipe Owner - Facility: K ngs Grant Subdivision WWTP Inspection Type: Compliance Evaluation Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? Comment: There was no discharae at the time of insi,ection. Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Comment: Yes No NA NE ❑ ❑ ❑ ❑ Yes No NA NE Page# 4