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Home My WebLink AboutWQ0035049_Compliance Evaluation Inspection_20240305DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Anthony Colon PO Box 995 Burgaw, NC 28425 NORTH CAROLINA Environmental Quality March 05, 2024 SUBJECT: Compliance Inspection Report Maple Hill WWTP Non -discharge Permit No. WQ0035049 Pender County Dear Permittee: The North Carolina Division of Water Resources conducted an inspection of the Maple Hill WWTP on 2/20/2024. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in Non -discharge Permit No. WQ0035049. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". There were no significant issues or findings noted during the inspection and therefore, a response to this inspection report is not required. If you should have any questions, please do not hesitate to contact Geoff Kegley with the Water Quality Regional Operations Section in the Wilmington Regional Office at 910-796-7215 or via email at geoff.kegley@deq.nc.gov. ATTACHMENTS Cc: DWR Laserfiche files Sincerely, DocuSigned by: E �-,,j, 6, DC434... Morella SancE3ABA14AC7hez-King, Regional Supervisor Water Quality Regional Operations Section Wilmington Regional Office Division of Water Resources, NCDEQ North Carolina Department cf Environmental Quality I Division of Water Resources ,./ Wiimington Regional Office 1127 Cardinal Drive Extension I Wilmington. North Carolina 26405 910.796,7215 DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 Compliance Inspection Report Permit: WQ0035049 Effective: 04/01/21 Expiration: 08/31/26 Owner: Pender County SOC: Effective: Expiration: Facility: Maple Hill WWTP County: Pender 306 Maple Hill School Rd Region: Wilmington Maple Hill NC 28454 Contact Person: Jackie Eason Title: Phone: 910-259-3572 Directions to Facility: Head southeast on NC Hwy 50 from intersection of Hwy 50 and NC Hwy 53. Turn left onto Maple Hill School Road, facility entrance is on right after a blueberry farm and before post office/community building on the left. System Classifications: SI, WW2, Primary ORC: Christopher Kane Pickett Certification: 995432 Phone: 910-259-1570 Secondary ORC(s): On -Site Representative(s): Related Permits: Inspection Date: 02/20/2024 Entry Time 10:30AM Exit Time: 11:45AM Primary Inspector: Geoff Kegley Docusigned by: Phone: Secondary Inspector(s): � C017E2515D3B417_ Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: Wastewater Irrigation Facility Status: 0 Compliant ❑ Not Compliant Question Areas: Treatment Flow Measurement -Effluent Treatment Flow Measurement -Influent Miscellaneous Questions Treatment Flow Measurement -Water Treatment Record Keeping Use Records Treatment Activated Sludge Treatment Sludge Storage/Treatment End Use -Irrigation Treatment Clarifiers Treatment Disinfection Treatment Flow Measurement Standby Power (See attachment summary) Page 1 of 6 DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 Permit: WQ0035049 Owner - Facility: Pender County Inspection Date: 02/20/2024 Inspection Type : Compliance Evaluation Reason for Visit: Routine Inspection Summary: A routine compliance inspection of the Town of Maple Hill's wastewater treatment facility was conducted on February20, 2024. The purpose of the evaluation was to verify that the facility is operating in compliance with the conditions and limitations specified in Non -Discharge Permit W00035049. Chris Pickett, the ORC was present during the inspection. The 42,000 GPD wastewater treatment and spray irrigation facility consists of: 46,076 gallon equalization basin two 8,078 gallon aeration basins with rotating mixers two 5,013 gallon clarifiers two ultraviolet disinfection units 3,063 gallon aerobic digester 5.6 million gallon synthetically lined storage lagoon 19.01 acre spray irrigation area The treatment facility is well maintained. The average flow received from the Septic Tank Effluent Pump (STEP) collection system is approximately 9,000 gpd. Dog food continues to be used as a carbon source because of low BOD in the influent. It is recommended to evaluate alternate sources of carbon as dog food can cause problems with oil & grease and solids in the treatment process. Some commonly used sources of external carbon include methanol, glycerol, molasses sugar water and proprietary formulations like MicroCTM. The facility is deemed compliant with the Non -Discharge Permit WQ0035049. Please review the comment sections of the inspection report for additional details and items to address. Page 2 of 6 DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 Permit: WQ0035049 Owner - Facility: Pender County Inspection Date: 02/20/2024 Inspection Type : Compliance Evaluation Reason for Visit: Routine Type Yes No NA NE Reuse (Quality) ❑ Infiltration System ❑ Single Family Spray, LR ❑ Lagoon Spray, LR ❑ Activated Sludge Spray, HR ❑ Activated Sludge Drip, LR ❑ Recycle/Reuse ❑ Single Family Drip ❑ Activated Sludge Spray, LR 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: 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? ❑ ❑ ❑ Comment: Flow meter was calibrated on 4/13/23. 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? ❑ ❑ ❑ Is flowmeter operating properly? ❑ ❑ ❑ Does flowmeter monitor continuously? ❑ ❑ ❑ Does flowmeter record flow? ❑ ❑ ❑ Does flowmeter appear to monitor accurately? ❑ ❑ ❑ Comment: Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Page 3 of 6 DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 Permit: WQ0035049 Owner - Facility: Pender County Inspection Date: 02/20/2024 Inspection Type : Compliance Evaluation Reason for Visit: Routine Is generator tested weekly by interrupting primary power source? 0 ❑ ❑ ❑ Is generator operable? 0 ❑ ❑ ❑ Does generator have adequate fuel? ❑ ❑ ❑ Comment: Generator and transfer switch was tested during the inspection and was operational Treatment Activated Sludge Yes No NA NE Is the aeration mechanism operable? 0 ❑ ❑ ❑ Is the aeration basin thoroughly mixed? 0 ❑ ❑ ❑ Is the aeration equipment easily accessed? 0 ❑ ❑ ❑ Is Dissolved Oxygen adequate? ❑ ❑ ❑ Are Settleometer results acceptable? ❑ ❑ ❑ Is activated sludge an acceptable color? 0 ❑ ❑ ❑ Comment: DO probe is installed in aeration basins/RBCs. The DO probe and settleometer test are used for process control. Some algae was present. Treatment Clarifiers Yes No NA NE Are the weirs level? 0 ❑ ❑ ❑ Are the weirs free of solids and algae? ❑ ❑ ❑ Is the scum removal system operational? ❑ ❑ ❑ Is the scum removal system accessible? ❑ ❑ ❑ Is the sludge blanket at an acceptable level? ❑ ❑ ❑ Is the effluent from the clarifier free of excessive solids? 0 ❑ ❑ ❑ Comment: There was a small amount of floating solids in the clarifiers. The ORC has added screens after the clarifiers to aid in solids removal. Again, an alternate source of carbon may help with solids. Treatment Sludge Storage/Treatment Yes No NA NE Is the aeration operational? 0 ❑ ❑ ❑ Is the aeration pattern even? 0 ❑ ❑ ❑ If required, are Sanitary "Ts" present in tankage? ❑ ❑ 0 ❑ Comment: Treatment Disinfection Is the system working? Do the fecal coliform results indicate proper disinfection? Is there adequate detention time (>=30 minutes)? Is the system properly maintained? If gas, does the cylinder storage appear safe? Is the fan in the chlorine feed room and storage area operable? Is the chlorinator accessible? Yes No NA NE ■❑❑❑ ❑❑0❑ Page 4 of 6 DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 Permit: WQ0035049 Owner - Facility: Pender County Inspection Date: 02/20/2024 Inspection Type : Compliance Evaluation Reason for Visit: Routine If tablets, are tablets present? Are the tablets the proper size and type? Is contact chamber free of sludge, solids, and growth? If UV, are extra UV bulbs available? If UV, is the UV intensity adequate? # Is it a dual feed system? Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? If yes, then is there a Risk Management Plan on site? If yes, then what is the EPA twelve digit ID Number? (1000- If yes, then when was the RMP last updated? Comment: The UV lights need frequent cleaning due to solids and the lack of a filter/tertiary treatment. 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? ❑ ❑ ❑ Page 5 of 6 DocuSign Envelope ID: BCE9E278-EB87-440C-8046-93A6A82EE2E5 Permit: WQ0035049 Owner - Facility: Pender County Inspection Date: 02/20/2024 Inspection Type : Compliance Evaluation Reason for Visit: Routine No treatment units bypassed since last inspection? ❑ ❑ 0 ❑ Comment: Operational lops, monitoring reports, and lab data was all present on -site, was well organized and available for review. End Use -Irrigation Yes No NA NE Are buffers adequate? 0 ❑ ❑ ❑ Is the cover crop type specified in permit? ❑ ❑ 0 ❑ Is the crop cover acceptable? ❑ ❑ ❑ Is the site condition adequate? ❑ ❑ ❑ Is the site free of runoff / ponding? ❑ ❑ ❑ Is the acreage specified in the permit being utilized? ❑ ❑ ❑ Is the application equipment present? ❑ ❑ ❑ Is the application equipment operational? ❑ ❑ ❑ Is the disposal field free of limiting slopes? ❑ ❑ ❑ Is access restricted and/or signs posted during active site use? ❑ ❑ ❑ Are any supply wells within the CB? ❑ ❑ ❑ Are any supply wells within 250' of the CB? ❑ ❑ ❑ How close is the closest water supply well? ❑ ❑ ❑ Is municipal water available in the area? ❑ ❑ ❑ # Info only: Does the permit call for monitoring wells? ❑ ❑ ❑ Are GW monitoring wells located properly w/ respect to RB and CB? ❑ ❑ ❑ Are GW monitoring wells properly constructed, including screened interval? ❑ ❑ ❑ Are monitoring wells damaged? ❑ 0 ❑ ❑ Comment: Freeboard gauge in the storage lagoon was installed and indicated adequate freeboard. Spray irrigation fields were maintained. The existing perimeter drainage ditches are maintained as intended controlling potential groundwater mounding, however vegetation removal/maintenance will likely be needed in the future. Page 6 of 6