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Home My WebLink AboutNC0088927_Compliance Evaluation Inspection_20180529Water Resources Environmental Quality May 29, 2018 Mr. Shannon Becker Aqua North Carolina, Inc. 202 MacKenan Court Cary, NC 27511 SUBJECT: Compliance Evaluation Inspection Meadow Ridge Subdivision Water Treatment Plant NPDES Permit No. NCO088927 Guilford County Dear Mr. Becker: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director \Neter Messed n PeTiOVACI On May 23, 2018, Jenny Graznak of this office met with Pete Dealing to perform a Compliance Evaluation Inspection of the filter backwash wastewater discharge from the Meadow Ridge water treatment system. The inspection findings are detailed below and an inspection checklist is attached. 1. Permit The current permit became effective March 1, 2017 and will expire on February 28, 2022. A copy of the permit was available for review during the inspection. The new permit includes monitoring requirements for Fluoride and Zinc. However, since the facility does not add either of these chemicals during their treatment process, the monitoring is not required. 2. Self -Monitoring Program The Discharge Monitoring Reports (DMRs) were reviewed for the period February 2017 through February 2018. No monitoring violations were found during that time. Flow, pH, and Total Residual Chlorine are performed by the operator under the Aqua North Carolina field parameter certification. The rest of the parameters (Total Suspended Solids, Turbidity, Total Iron, and Total Manganese) are analyzed by Water Tech Labs, Inc. Mr. Dealing delivers the samples to the laboratory. All sampling appears to have been performed per the frequencies specified in the permit. 3. Facility Site Review The components of the filter backwash system consist of four green sandfilters and liquid dechlorination. Calcium thiosulfate solution is added for dechlorination prior to discharge. The permit requires an estimate of effluent flow twice per month. The system has a totalizing flow meter for the backwash. The operator divides the total gallons on the meter by number of days to get a daily flow. 4. Operations and Maintenance The system is designed to backwash every four days or when 45,000 gallons of well water has been treated, whichever comes first. The facility appears to be competently operated and maintained. No problems or concerns were noted. < othing Comparesn-..,._ State of North Carolina I Environmental Quality 450 W. Hanes Mill Road, Suite 300, Winston-Salem, North Carolina 27105 Phone: 336-776-98001 FAX: 336-776-9797 5. Records/Reports A review of the facility files found that the operator records are maintained according to the permit requirements. A comparison of September 2017 DMR with the corresponding operator records and laboratory results revealed that the parameters had been correctly transcribed. 6. Effluent/Receiving Waters The system discharges into the headwaters of a tributary of Kings Creek, classified B waters in the Roanoke River Basin. A trickle was observed coming out of the effluent pipe at the time of the inspection, and it appeared to be clear and free of solids. The system was found to be compliant with the NPDES permit. Your efforts to comply with the permit are appreciated. Should you have any questions concerning this letter, please contact Jenny Graznak or me at (336) 776-9800. Sincerely, Sherri V. Knight, P.E. Regional Supervisor Water Quality Regional Operations Section Division of Water Resources cc: Pete Dealing (PRDealing agaquaamerica.com) Central Files a�ni`t WSRO Attachment: Inspection Checklist 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 2 15 I 3 I NCO088927 111 121 18/05/23 117 181,.1 19 I c I 201 211111 1 1 1 1 1 111 1 1 1 1 1 1 1 1 1.I I I I I I I I I I I I I I II I I I I I 166 I Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA -Reserved 67 70 [, 71 I I 72 � �, � 731 I 174 751 III I 1 I 180 IJ LJ I I Section B: FacilityData 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) 09:OOAM 1 B/05/23 17/03/01 Meadow Ridge Subdivision - Well System 7626 Anthony Rd Exit Time/Date Permit Expiration Date Kernersville NC 27284 10:OOAM 18/05/23 22/02/28 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Peter Ray Dealing/ORC/336-362-2008/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Shannon V Becker,202 Mackenan Ct Cary NC 27511/President/919-653-5570/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit E Flow Measurement Operations & Maintenance Records/Reports Self-Monitoring Program 0 Facility Site Review Effluent/Receiving Waters 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 , � Jennifer F Graznak`"4 'j WSRO WQ//336-771-5000! 5/29 '1� t Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date -�. r- slz�1► EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type (Cont.) 31 NCO088927 I� 121 18/05/23 117 18 ICI Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) 1. Permit The current permit became effective March 1, 2017 and will expire on February 28, 2022. A copy of the permit was available for review during the inspection. The new permit includes monitoring requirements for Fluoride and Zinc. However, since the facility does not add either of these chemicals during their treatment process, the monitoring is not required. 2. Self -Monitoring Program The Discharge Monitoring Reports (DMRs) were reviewed for the period February 2017 through February 2018. No monitoring violations were found during that time. Flow, pH, and Total Residual Chlorine are performed by the operator under the Aqua North Carolina field parameter certification. The rest of the parameters (Total Suspended Solids, Turbidity, Total Iron, and Total Manganese) are analyzed by Water Tech Labs, Inc. Mr. Dealing delivers the samples to the laboratory. All sampling appears to have been performed per the frequencies specified in the permit. 3. Facility Site Review The components of the filter backwash system consist of four green sandfilters and liquid dechlorination. Calcium thiosulfate solution is added for dechlorination prior to discharge. The permit requires an estimate of effluent flow twice per month. The system has a totalizing flow meter for the backwash. The operator divides the total gallons on the meter by number of days to get a daily flow. 4. Operations and Maintenance The system is designed to backwash every four days or when 45,000 gallons of well water has been treated, whichever comes first. The facility appears to be competently operated and maintained. No problems or concerns were noted. 5. Records/Reports A review of the facility files found that the operator records are maintained according to the permit requirements. A comparison of September 2017 DMR with the corresponding operator records and laboratory results revealed that the parameters had been correctly transcribed. 6. Effluent/Receiving Waters The system discharges into the headwaters of a tributary of Kings Creek, classified B waters in the Roanoke River Basin. A trickle was observed coming out of the effluent pipe at the time of the inspection, and it appeared to be clear and free of solids. Page# } Permit: NCO088927 Owner - Facility: Meadow Ridge Subdivision - Well System Inspection Date: 05/23/2018 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? E ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ 0 ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The system is designed to backwash every four days or when 45,000 -gallons of well water has been treated, whichever comes first. The facility appears to be competently operated and maintained. No problems or concerns were noted. Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ Flow Measurement - Effluent ❑ application? number of days to get a daily flow. ❑ ❑ ❑ Is the facility as described in the permit? N ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ 0 ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: The current permit became effective March 1. 2017 and will expire on February 28. 2022. A copy of the permit was available for review during the inspection. totalizing flow meter for the backwash. The operator divides the total Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? number of days to get a daily flow. ❑ ❑ ❑ Is flow meter calibrated annually? ❑ ❑ E ❑ Is the flow meter operational? ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑ Comment: The permit requires an estimate of effluent flow twice per month. The system has a totalizing flow meter for the backwash. The operator divides the total gallons on the meter by number of days to get a daily flow. De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ E ❑ Is storage appropriate for cylinders? ❑ ❑ N ❑ # Is de -chlorination substance stored away from chlorine containers? ❑ ❑ 0 ❑ Are the tablets the proper size and type? ❑ ❑ 0 ❑ Comment: Two pumps feed the calcium thiosulfate into the discharge line. The pumps are automatically activated when the system backwashes. Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Number of tubes in use? Page# 3 Permit: NCO088927 Owner - Facility: Meadow Ridge Subdivision - Well System Inspection Date: 05/23/2018 Inspection Type: Compliance Evaluation De -chlorination Yes No NA NE Comment: Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? N ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ E ❑ Comment: The effluent is discharged via a 2 -inch pipe at the end of a path approximately 100 yards ❑ ❑ from the well house. The discharge was observed to be clear. Effluent samples are Is the chain -of -custody complete? E ❑ collected from the spigot in the well house. ❑ Dates, times and location of sampling permit requirements. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? N ❑ ❑ ❑ Is all required information readily available, complete and current? N ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? E ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? E ❑ ❑ ❑ Dates, times and location of sampling permit requirements. Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Transported CDCs Are DMRs complete: do they include all permit parameters? ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ E ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ E ❑ on each shift? Is the ORC visitation log available and current? 0 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? E ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ N ❑ Comment: A review of the facility files found that the operator records are maintained according to the permit requirements. Page# 4