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HomeMy WebLinkAboutWQ0003271_Compliance Evaluation Inspection_20230711DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Compliance Inspection Report Permit: WQ0003271 Effective: 03/01/19 Expiration: 12/31/23 Owner : Carolina Water Service Inc of North Carolina SOC: Effective: Expiration: Facility: Hestron Park WWTF County: Carteret 216 NC 24 Region: Wilmington Morehead City NC 28557 Contact Person: Stacy A Goff Title: ORC Phone: 252-659-0515 Directions to Facility: System Classifications: WW2, Primary ORC: Stacy Allen Goff Certification: 998882 Phone: 252-808-5955 Secondary ORC(s): On -Site Representative(s): On -site representative Anthony Garland Futrell 312-965-3728 Related Permits: Inspection Date: 07/11/2023 Entry Time 09:OOAM Exit Time: 09:50AM Primary Inspector: Helen I Perez Docusigned by: Phone: 910-796-7387 �e/%t DocuSigned by: Secondary Inspector(s): ""� E7011,11E73B6F3456_ aoA, 39694BE... 1 7/17/2023 Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: High Rate Infiltration Facility Status: Compliant ❑ Not Compliant Question Areas: Treatment Flow Measurement -Effluent Treatment Flow Measurement -Influent Miscellaneous Questions Treatment Flow Measurement -Water Treatment Treatment Barscreen Use Records Treatment Filters Record Keeping Treatment Activated Sludge Treatment Influent Pump Station Treatment Clarifiers Treatment Disinfection End Use -Infiltration Treatment Flow Measurement Treatment Return pumps Standby Power (See attachment summary) Page 1 of 7 DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Permit: WQ0003271 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 07/11/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine Inspection Summary: A routine compliance inspection of the Hestron Park WWTF was conducted on July 11, 2023. The purpose of the evaluation was to verify that the facility is operating in compliance with the conditions and limitations specified in Permit WQ0003271. Operators, Anthony Futrell and Eddie Boyles, were present during the inspection. This 67,000 gpd extended aeration plant treats the wastewater from the shopping center located just west of the facility. The plant averaged 11,000 gpd in April of this year. A review of records for the permit cycle shows a total of 4 BOD and 1 Ammonia effluent limit exceedances. Monitoring Wells #1, #3, #4 and #5 have had many TDS exceedances and MW #4 has had continuous Chloride limit exceedances. It was found, in the past, that the influent tends to have high Chloride and TDS levels. Monitoring Well #4 has had continuous Nitrate limit exceedances during the permit cycle and in previous cycles. It is located approximately 40 feet from high -rate infiltration Field #1 and approximately 50 feet from the property boundary. The Wilmington Regional Office will be recommending the addition of a permit condition with a compliance schedule in the new permit to address the groundwater impacts, per 15A NCAC 02L .0106(d)(2). The facility is compliant with Non -Discharge Permit WQ0003271. Please review the comment sections of the inspection report for more details. Page 2 of 7 DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Permit: WQ0003271 Inspection Date: 07/11/2023 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Type: Compliance Evaluation Reason for Visit: Routine Type Yes No NA NE Reuse (Quality) ❑ Single Family Spray, LR ❑ Lagoon Spray, LR ❑ Activated Sludge Spray, LR ❑ Activated Sludge Spray, HR ❑ Activated Sludge Drip, LR ❑ Recycle/Reuse ❑ Single Family Drip ❑ Infiltration System Treatment Yes No NA NE Are Treatment facilities consistent with those outlined in the current permit? 0 ❑ ❑ ❑ Do all treatment units appear to be operational? (if no, note below.) 0 ❑ ❑ ❑ Comment: No comment. Treatment Influent Pump Station Yes No NA NE Is the pump station free of bypass lines or structures? 0 ❑ ❑ ❑ Is the general housekeeping acceptable? ❑ ❑ ❑ Are all pumps present? ❑ ❑ ❑ Are all pumps operable? ❑ ❑ ❑ Are floats/controls operable? ❑ ❑ ❑ Are audio and visual alarms available? 0 ❑ ❑ ❑ Are audio and visual alarms operational? ❑ ❑ ❑ # Are SCADA/Telemetry alarms required? ❑ ❑ ❑ Are SCADA/Telemetry available? ❑ ❑ ❑ Are SCADA/Telemetry operational? ❑ ❑ 0 ❑ Comment: The influent pump station is located in the shopping center located just west of the plant. It is inspected weekly and documentation of inspections and maintenance is reported on a tablet using a software program. A Fats, Oil and Grease pamphlet is mailed out to the stores annually. The pump station is connected to the Missions telemetry system and calls the operator regarding any alarms. Treatment Flow Measurement -Influent Yes No NA NE Is flowmeter calibrated annually? ❑ ❑ 0 ❑ Is flowmeter operating properly? ❑ ❑ ❑ Does flowmeter monitor continuously? ❑ ❑ ❑ Does flowmeter record flow? ❑ ❑ ❑ Does flowmeter appear to monitor accurately? ❑ ❑ ❑ Page 3 of 7 DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Permit: WQ0003271 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 07/11/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine Comment: Treatment Flow Measurement -Water Use Records Yes No NA NE Is water use metered? ❑ ❑ ❑ Are the daily average values properly calculated? ❑ ❑ 0 ❑ Comment: Treatment Flow Measurement -Effluent Yes No NA NE Is flowmeter calibrated annually? 0 ❑ ❑ ❑ Is flowmeter operating properly? ❑ ❑ ❑ Does flowmeter monitor continuously? ❑ ❑ ❑ Does flowmeter record flow? ❑ ❑ ❑ Does flowmeter appear to monitor accurately? 0 ❑ ❑ ❑ Comment: The effluent flowmeter was calibrated on 7/12/2022 by Delta Systems. Standby Power Yes No NA NE Is automatically activated standby power available? ❑ ❑ ❑ Is generator tested weekly by interrupting primary power source? ❑ ❑ ❑ Is generator operable? ❑ ❑ ❑ Does generator have adequate fuel? ❑ ❑ ❑ Comment: A portable Generac generator is on -site for standby power until the plant generator can be repaired. The portable unit was operational and transferred power during inspection. Treatment Barscreen Yes No NA NE Is it free of excessive debris? ❑ ❑ ❑ Is disposal of screenings in compliance? ❑ ❑ ❑ Are the bars spaced properly? ❑ ❑ ❑ Is the unit in good condition? ❑ ❑ ❑ Comment: No comment. Treatment Activated Sludge Yes No NA NE Is the aeration mechanism operable? ❑ ❑ ❑ Is the aeration basin thoroughly mixed? ❑ ❑ ❑ Is the aeration equipment easily accessed? ❑ ❑ ❑ Is Dissolved Oxygen adequate? ❑ ❑ ❑ Are Settleometer results acceptable? ❑ ❑ ❑ Is activated sludge an acceptable color? 0 ❑ ❑ ❑ Comment: From the barscreen, influent flows through the splitter box to dual extended aeration tanks. There is no EQ tank. Treatment Clarifiers Yes No NA NE Page 4 of 7 DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Permit: WQ0003271 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 07/11/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine Are the weirs level? 0 ❑ ❑ ❑ Are the weirs free of solids and algae? 0 ❑ ❑ ❑ Is the scum removal system operational? 0 ❑ ❑ ❑ Is the scum removal system accessible? 0 ❑ ❑ ❑ Is the sludge blanket at an acceptable level? ❑ ❑ ❑ Is the effluent from the clarifier free of excessive solids? 0 ❑ ❑ ❑ Comment: There were some floating solids in the clarifiers during the inspection. The scimmers appear to be removing the solids as designed. Treatment Return pumps Yes No NA NE Are they in place? 0 ❑ ❑ ❑ Are they operational? 0 ❑ ❑ ❑ Comment: Waste sludge is pumped to the sludge holding tank and Aragona Brothers remove the solids approximately once a month. Treatment Filters Yes No NA NE Is the filter media present? ❑ ❑ ❑ Is the filter media the correct size and type? ❑ ❑ ❑ Is the air scour operational? ❑ ❑ ❑ Is the scouring acceptable? ❑ ❑ ❑ Is the clear well free of excessive solids? 0 ❑ ❑ ❑ Is the mud well free of excessive solids and filter media? 0 ❑ ❑ ❑ Does backwashing frequency appear adequate? 0 ❑ ❑ ❑ Comment: The dual tertiary filters are manually backwashed daily. The mudwell high-level float was pulled and the visual and audio alarms were operational and the Missions system notified the operator by cell phone. Treatment Disinfection Yes No NA NE Is the system working? 0 ❑ ❑ ❑ Do the fecal coliform results indicate proper disinfection? 0 ❑ ❑ ❑ Is there adequate detention time (-30 minutes)? ❑ ❑ ❑ Is the system properly maintained? 0 ❑ ❑ ❑ If gas, does the cylinder storage appear safe? ❑ ❑ 0 ❑ Is the fan in the chlorine feed room and storage area operable? ❑ ❑ 0 ❑ Is the chlorinator accessible? ❑ ❑ 0 ❑ If tablets, are tablets present? ❑ ❑ 0 ❑ Are the tablets the proper size and type? ❑ ❑ 0 ❑ Is contact chamber free of sludge, solids, and growth? 0 ❑ ❑ ❑ If UV, are extra UV bulbs available? ❑ ❑ 0 ❑ If UV, is the UV intensity adequate? ❑ ❑ 0 ❑ Page 5 of 7 DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Permit: WQ0003271 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 07/11/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine # Is it a dual feed system? ❑ ❑ 0 ❑ Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ ❑ 0 ❑ If yes, then is there a Risk Management Plan on site? ❑ ❑ ❑ If yes, then what is the EPA twelve digit ID Number? (1 000-- ) If yes, then when was the RMP last updated? Comment: Liquid chlorine is used for disinfection. The contact chamber appeared to be in good condition. Record Keeping Yes No NA NE Is a copy of current permit available? ❑ ❑ ❑ Are monitoring reports present: NDMR? ❑ ❑ ❑ NDAR? ❑ ❑ ❑ Are flow rates less than of permitted flow? ❑ ❑ ❑ Are flow rates less than of permitted flow? ❑ ❑ ❑ Are application rates adhered to? ❑ ❑ ❑ Is GW monitoring being conducted, if required (GW-59s submitted)? ❑ ❑ ❑ Are all samples analyzed for all required parameters? ❑ ❑ ❑ Are there any 2L GW quality violations? ❑ ❑ ❑ Is GW-59A certification form completed for facility? ❑ ❑ ❑ Is effluent sampled for same parameters as GW? ❑ ❑ ❑ Do effluent concentrations exceed GW standards? ❑ ❑ ❑ Are annual soil reports available? ❑ ❑ ❑ # Are PAN records required? ❑ ❑ ❑ # Did last soil report indicate a need for lime? ❑ ❑ ❑ If so, has it been applied? ❑ ❑ ❑ Are operational logs present? ❑ ❑ ❑ Are lab sheets available for review? ❑ ❑ ❑ Do lab sheets support data reported on NDMR? ❑ ❑ ❑ Do lab sheets support data reported on GW-59s? ❑ ❑ ❑ Are Operational and Maintenance records present? ❑ ❑ ❑ Were Operational and Maintenance records complete? ❑ ❑ ❑ Has permittee been free of public complaints in last 12 months? ❑ ❑ ❑ Is a copy of the SOC readily available? ❑ ❑ ❑ No treatment units bypassed since last inspection? ❑ ❑ ❑ Page 6 of 7 DocuSign Envelope ID: BEB8C105-E16D-49E5-8446-EDF169FEF354 Permit: WQ0003271 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 07/11/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine Comment: A spreadsheet is used to log operations and maintenance is tracked by a workorder system. Field parameters are analyzed by operators, Field Lab Certification #5162. Envirochem Lab is contracted to analyze all other parameters and to collect and analyze the monitoring wells. MW #4 has had continuous Nitrate and Chloride limit exceedances during the permit cycle. MW #1, #3, #4 and #5 have had many TDS exceedances. The Hach composite sampler was located in a small structure for protection from the elements, and temperature inside the sampler was 4 degrees Celcius. End Use -Infiltration Yes No NA NE # Is the application High Rate or Low Rate? High Rate Are buffers maintained? 0 ❑ ❑ ❑ Are any supply wells within the CB? ❑ ❑ ❑ Are any supply wells within 250' of the CB? ❑ ❑ ❑ Is municipal water available in the area? 0 ❑ ❑ ❑ Are GW monitoring wells required? 0 ❑ ❑ ❑ Are GW monitoring wells located properly w/ respect to RB and CB? 0 ❑ ❑ ❑ Are GW monitoring wells properly constructed, including screened interval? ❑ ❑ ❑ Is a usable green area maintained? ❑ ❑ 0 ❑ Is the disposal site acceptable? 0 ❑ ❑ ❑ Is the distribution equipment acceptable? 0 ❑ ❑ ❑ Is the disposal site free of ponding? 0 ❑ ❑ ❑ Is the disposal site free of breakout? 0 ❑ ❑ ❑ Are the disposal sites free of solids, algae, etc.? 0 ❑ ❑ ❑ Do the records show that the fields are properly maintained? 0 ❑ ❑ ❑ Are the disposal sites free of vegetation? 0 ❑ ❑ ❑ Do any surface water features appear to be adversely impacted by GW discharge? ❑ ❑ 0 ❑ No chemicals or rototiller used to eliminate vegetation, solids, algae, etc.? 0 ❑ ❑ ❑ Comment: Both rotary fields were well maintained and operable. Nozzles were all spraying and the operator has access to spare parts. Page 7 of 7