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HomeMy WebLinkAboutWQ0000986_Inspection_20210218DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Compliance Inspection Report Permit: WO0000986 Effective: 01/12/18 Expiration: 12/31/22 Owner: Enviracon Utilities Inc SOC: Effective: Expiration: Facility: Island Beach WWTP County: Carteret 2300 W Fort Macon Rd Region: Wilmington Atlantic Beach NC 28512 Contact Person: John H Chapman Title: Vice President Phone: 252-883-9223 Directions to Facility: Located on the north side of NC Hwy. 58, approximately 2.1 miles west of the point where the bridge joins the highway in Atlantic Beach System Classifications: WW3., Primary ORC: Stanley Earl Buck Certification: 993396 Phone: 252-503-5307 Secondary ORC(s): On -Site Representative(s): Related Permits: Inspection Date: 02/10/2021 Entry Time 10:OOAM Exit Time: 11:45AM igned by: Primary Inspector: Bryan Lievre Phone: 910-796-7215 Secondary Inspector(s): E;, O ocuS 4249ABED37443E... DocuSigned by: Megan D Faulkner L. IuQa� Reason for Inspection: Routine 1sss9AD1DE364F3... Inspection Type: Compliance Evaluation Permit Inspection Type: High Rate Infiltration Facility Status: 0 Compliant ❑ Not Compliant Question Areas: Treatment Flow Measurement -Effluent Treatment Flow Measurement -Water Use Records Treatment Filters Treatment Sludge Storage/Treatment End Use -Infiltration Wells (See attachment summary) Treatment Flow Measurement -Influent Miscellaneous Questions Treatment Treatment Barscreen Record Keeping Treatment Clarifiers Treatment Flow Measurement Coastal Requirements Treatment Activated Sludge Treatment Disinfection Standby Power Page 1 of 7 DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Permit: WQ0000986 Owner - Facility: Enviracon Utilities Inc Inspection Date: 02/10/2021 Inspection Type : Compliance Evaluation Reason for Visit: Routine Inspection Summary: An inspection of the Island Beach Wastewater Treatment Plant, Permit Number W00000986, was performed on February 10, 2021 in order to verify compliance with the existing permit. Present during the meeting were Stanley (Lee) Buck, (system ORC), as well as Megan Faulkner and myself (Bryan Lievre) with NCDEQ, DWR. The collection system is equipped with three duplex pump stations under Permit Number WQCSD0634. The 101,460 gpd WWTF System components (with flow in sequence below) include: - Manually cleaned bar screen with 1" spacing's - 50,000-gallon aerated flow equalization tank with: o A 150 cfm blower o Two 175 gpm transfer pumps - Two 50,000-gallon aeration tanks with two 360 cfm blowers - Two clarifiers at 8,873 gallons and 9,078 gallons, each - Activated sludge system (flow from two clarifiers above) with: o Two 12,500 anoxic basins with: Two 5 Hp mixers (permitted but not installed) Six dissolved oxygen monitoring systems o Two 4,974-gallon aerated sludge holding tanks with two 360 cfm blowers (also used by 50,000 gal aeration tank) o A 20,000-gallon sludge holding tank (converted from former flow equalization tank) - A dual chamber 250,000 gpd Fluidyne FPP tertiary cloth media filter (3.6 gpm/filter chamber) with: o An air compressor o An air dryer o A 1,500-gallon backwash tank with two 90 gpm alternating return pumps - A flow splitter box - Three in -line tablet chlorinators (installed in parallel) with dial -a -flow inlets - A 3,500-gallon chlorine contact chamber - A 4,000-gallon duplex dosing tank with: o Baffle wall, weir and flow transducer o Two 170 gpm dosing pumps - A standby diesel powered generator - A 0.10 acre high -rate infiltration system (Field 1) with: o Four quadrants o 1,388 nozzles at 0.5 gpm each - A 0.16 acre high -rate infiltration system (Field 2) with: o Four quadrants o 1,512 nozzles at 0.5 gpm each System seems to be well operated and maintained, although some corrosion was noted on access grates and some tanks. Repairs for the tanks have reportedly been scheduled, but will require constant maintenance and repairs should be made for any existing grates which require attention. Mr. Buck was extremely knowledgeable of plant operations and was very helpful during the inspection. The facility is compliant with Permit W00000986. Please review the comment sections of the inspection report for more details. Page 2 of 7 DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Permit: WQ0000986 Owner - Facility: Enviracon Utilities Inc Inspection Date: 02/10/2021 Inspection Type : Compliance Evaluation Reason for Visit: Routine Type Yes No NA NE Single Family Spray, LR ❑ Lagoon Spray, LR ❑ Reuse (Quality) ❑ Activated Sludge Drip, LR ❑ Activated Sludge Spray, HR ❑ Activated Sludge Spray, LR ❑ Single Family Drip ❑ Recycle/Reuse ❑ 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: The two 5-Hp mixers approved were never installed in the anoxic basins, the drum filters have been removed, the 10,500 gal field dosing tank taken out of service, the proposed 3,000 gal chlorine chlorination tank never installed (as existinq CI tank is ok), and 247,000 ft^2 of preen area for infiltration was never utilized. This infiltration area alonq with monitoring well MW-4 werE proposed at 2410 W Fort Macon Rd and this property is currently occupied by a Dollar General Store. Treatment Flow Measurement -Influent 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 Treatment Flow Measurement -Water Use Records Yes No NA NE Is water use metered? ❑ 1:10 ❑ Are the daily average values properly calculated? 1111011 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? ❑ ❑ ❑ Page 3 of 7 DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Permit: WQ0000986 Owner - Facility: Enviracon Utilities Inc Inspection Date: 02/10/2021 Inspection Type : Compliance Evaluation Reason for Visit: Routine Does flowmeter appear to monitor accurately? 0 ❑ ❑ ❑ Comment: The effluent flowmeter was last calibrated 5/1/2020 by Delta Systems Environmental. 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? Ell ❑ ❑ Comment: The diesel powered generator reportedly has sufficient fuel to operate under a heavy load for at least 2 days. 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: Bar screen was relatively free of debris and a bucket for removed debris was present next to structure. 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: The aeration line and coarse bubbler system has been recently replaced and an even distributior was observed during the inspection. DO was at 2.35 mg/L during the inspection. Treatment Clarifiers Yes No NA NE Are the weirs level? ❑ ❑ ❑ 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? ❑ ❑ ❑ Comment: Treatment Filters Yes No NA NE Is the filter media present? ❑ ❑ ❑ Is the filter media the correct size and type? ❑ ❑ ❑ Page 4 of 7 DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Permit: WQ0000986 Owner - Facility: Enviracon Utilities Inc Inspection Date: 02/10/2021 Inspection Type : Compliance Evaluation Reason for Visit: Routine Is the air scour operational? 0 ❑ ❑ ❑ Is the scouring acceptable? 0 ❑ ❑ ❑ 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 chamber cloth media filters are scoured (first with water and then with air) and both were operational during the inspection. Spare filter media is maintained on -site within a building which houses the air comperssor (for scouring the filters) and the flow recorder. Treatment Sludge Storage/Treatment Yes No NA NE Is the aeration operational? ❑ ❑ ❑ Is the aeration pattern even? ❑ ❑ ❑ If required, are Sanitary "Ts" present in tankage? 0 ❑ ❑ ❑ Comment: Sludge is typically removed by Barnes Environmental prior to summer months and then once or twice more throuahout the vear. as needed. Treatment Disinfection Yes No NA NE 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? ❑ ❑ ❑ 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: Flow aoes throuah one of three in -line tablet chlorinators (installed in Daralleh and then into a chlorine contact chamber which recieves -13% liquid chlorine. Record Keeping Yes No NA NE Is a copy of current permit available? ❑ ❑ ❑ Are monitoring reports present: NDMR? ❑ ❑ ❑ Page 5 of 7 DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Permit: WQ0000986 Owner - Facility: Enviracon Utilities Inc Inspection Date: 02/10/2021 Inspection Type : Compliance Evaluation Reason for Visit: Routine NDAR? 0 ❑ ❑ ❑ Are flow rates less than of permitted flow? 0 ❑ ❑ ❑ Are flow rates less than of permitted flow? 0 ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Is GW-59A certification form completed for facility? ❑ ❑ 0 ❑ Is effluent sampled for same parameters as GW? 0 ❑ ❑ ❑ Do effluent concentrations exceed GW standards? 0 ❑ ❑ ❑ Are annual soil reports available? ❑ ❑ ❑ # Are PAN records required? ❑ ❑ ❑ # Did last soil report indicate a need for lime? ❑ ❑ ❑ If so, has it been applied? ❑ ❑ 0 ❑ Are operational logs present? 0 ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Were Operational and Maintenance records complete? 0 ❑ ❑ ❑ Has permittee been free of public complaints in last 12 months? 0 ❑ ❑ ❑ Is a copy of the SOC readily available? ❑ ❑ 0 ❑ No treatment units bypassed since last inspection? ❑ ❑ ❑ Comment: Treatment system currently operating at abut 15,000 gpd and about 75,000 qpd during summer months with peaks on July 4th weekends. MW-1 and MW-2 slightly exceeded TSS limit of 500 mg/L for Q2 2020 & Q2 2019 (all results between 500-600 mg/L), however no actions taken as this may be considered typical for groundwater on barrier islands. NOVs issued for slight exceedances (12.12 and 14.75 mg/L versus permit limit of 10 mg/L) of monthly averages for tota Nitrogen for 1/2020 and 2/2020, respectively. End Use -Infiltration # Is the application High Rate or Low Rate? Are buffers maintained? Are any supply wells within the CB? Are any supply wells within 250' of the CB? Is municipal water available in the area? Are GW monitoring wells required? Are GW monitoring wells located properly w/ respect to RB and CB? Are GW monitoring wells properly constructed, including screened interval? Yes No NA NE High Rate ■❑❑❑ ❑■❑❑ ❑❑❑■ ■❑❑❑ ■❑❑❑ ❑❑❑■ ❑❑❑■ Page 6 of 7 DocuSign Envelope ID: A7C8D78A-289A-4076-870B-91 FA24052DC7 Permit: WQ0000986 Owner - Facility: Enviracon Utilities Inc Inspection Date: 02/10/2021 Inspection Type : Compliance Evaluation Reason for Visit: Routine 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? ❑ ❑ ❑ Is the disposal site free of breakout? ❑ ❑ ❑ Are the disposal sites free of solids, algae, etc.? ❑ ❑ ❑ 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? ❑ ❑ ❑ No chemicals or rototiller used to eliminate vegetation, solids, algae, etc.? ❑ ❑ 0 ❑ Comment: Debris from an overnight storm had been recently removed from the northern disposal field. Although each field is broken down into four quadrants, flow alternates between each field and each quadrant at each field is typically kept open for even distribution. Monitoring wells MW-1 and MW-2 were located and inspected during the recent visit. Each well was equipped with a 6" diameter outer PVC casing with cap. Wells are typically sampled by lab personnel. Coastal Requirements Yes No NA NE Are essential treatment units provided in duplicate? ❑ ❑ ❑ Is an adequately sized aerated equalization basin present? ❑ ❑ ❑ If so, is it operable? ❑ ❑ ❑ If present, are diffusers cleaned regularly? ❑ ❑ ❑ Is the equalization capacity adequate? ❑ ❑ ❑ Comment: Page 7 of 7