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Home My WebLink AboutWQ0007569_Compliance Evaluation Inspection_20220120DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C t�. STATE q, ROY COOPER�� > Governor O ELIZABETH S. BISER Secretary S. DANIEL SMITH NORTH CAROLINA Director Environmental Quality January 25, 2022 Tony Konsul Carolina Water Service Inc of North Carolina 4944 Parkway Plz Blvd Charlotte, NC 28217 SUBJECT: Compliance Inspection Report Brandywine Bay WWTP Non -discharge Permit No. WQ0007569 Carteret County Dear Permittee: The North Carolina Division of Water Resources conducted an inspection of the Brandywine Bay WWTP on 1/20/2022. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in Non -discharge Permit No. WQ0007569. 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 Bryan Lievre with the Water Quality Regional Operations Section in the Wilmington Regional Office at 910-796-7215 or via email at bryan.lievre@ncdenr.gov. ATTACHMENT Cc: Laserfiche Sincerely, EHDocuSigned by - , ullk S�c� K.Z4•& E3ABA14AC7DC434... Morella Sanchez -King, Regional Supervisor Water Quality Regional Operations Section Wilmington Regional Office Division of Water Resources, NCDEQ D_E Q�� North Carolina Department of Environmental Quality I Division of Water Resources Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405 910.796,7215 DocuSign Envelope ID: 57CFF64B-FO5B-40E7-A4E1-72C056F4442C Compliance Inspection Report Permit: WQ0007569 Effective: 03/17/21 Expiration: 09/30/25 Owner : Carolina Water Service Inc of North Carolina SOC: Effective: Expiration: Facility: Brandywine Bay WWTP County: Carteret 200 Horton Dr Region: Wilmington Morehead City NC 28557 Contact Person: Tony Konsul Title: Regional Manager Phone: 704-319-0523 Directions to Facility: System Classifications: WW2, SI, Primary ORC: Stacy Allen Goff Secondary ORC(s): On -Site Representative(s): Related Permits: Inspection Date: 01/20/2022 Primary Inspector: Bryan Lievre Secondary Inspector(s): ;T,jwgy 10:OOAM L� 2Ltccn. .4ir�vtr. 74249ABED37443E_ Certification: 1000417 Phone:252-808-5955 Exit Time: 01:OOPM Phone: 910-796-7215 Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: Reclaimed Water 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 Sludge Storage/Treatment Treatment Influent Pump Station Treatment Clarifiers Treatment Disinfection Treatment Flow Measurement Standby Power Wells Coastal Requirements (See attachment summary) Page 1 of 7 DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C Permit: WQ0007569 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 01/20/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine Inspection Summary: An inspection of the Brandywine Bay Wastewater Treatment Facility (WWTF), Permit Number W00007569, was performed on January 20, 2022 to verify compliance with the existing permit. Present during the inspection were Messrs. Anthony Futrell and Stacy Goff (both with Carolina Water Service), and Chris Smith, Dorothy Robson, Molly Nicholson and Cassidy Kurtz with DEQ (all with Raleigh Regional Office) and Bryan Lievre with DEQ (Wilmington Regional Office). The existing permit which was issued 3/17/21 and expires 9/30/2025 provides for the operation of a WWTF for the Brandywine Bay Subdivision. The wastewater system currently is comprised of dual train 100,000 GPD and 50,000 GPD extended aeration treatment systems, dual 200,000 GPD fixed -plate tertiary cloth filters, two (inactive) UV disinfection units, an active sodium hypochlorite disinfection system, a 1.25 MG unlined 5-day holding pond, a 7.5 MG storage holding pond and 84.6 acres of spray irrigation fields over an 18-hole golf course within the subdivision. The permitted flow for the system is 150,000 GPD and the system has operated at an average yearly rate of approximately 101,600 gpd for 2020 and 94,434 gpd for 2021 (January through October). The system is being replaced due to the deteriorating condition of most of the metal structures and upgrades are being performed to provide for anticipated growth in the area and the possible shut down of another WWTF in the area (e.g. Hestron Park WWTF, W00003271). The current permit also provides for the existing extended aeration WWTF to be replaced with a 300,000 gpd wastewater system to include upgrades to the existing influent pump station, dual sequencing batch reactors (SBRs), to abandon the golf course irrigation system and convert the 5-Day and 30-Day ponds into infiltration basins with a surrounding groundwater lowering system and to include the installation of three additional monitoring wells (e.g. MW-11, MW-12 and MW-13). According to system staff, activities to alter the wastewater system will commence within 30 to 45 days of the date of the recent inspection and are expected to be completed in about one year from date of commencement of activities. Site activities are anticipated to commence with the installation of a new road into the wastewater system to the northeast which will provide a more direct route onto Horton Drive and NC Hwy 70. System staff were reminded of several conditions of the new permit, which required advanced notice to the Wilmington Regional Office of: 1. A closure plan for the 1.25 million gallon and 7.5 MG ponds (Refer to Item 1.1.); 2. Advanced notice of at least two days in advance of initial operation of the constructed facilities so that the Division can conduct a startup inspection (Refer to Item 1.3.); and, 3. A map and proposed well detail for proposed wells MW-11, MW-12 and MW-13 (Refer to Item 1.4.). Records were reviewed and well organized. Staff were very knowledgeable of system operations and their assistance during the inspection was greatly appreciated. Please review the comment sections of the inspection report for more details. Page 2 of 7 DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C Permit: WQ0007569 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 01/20/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine Type Yes No NA NE Infiltration System ❑ Lagoon Spray, LR ❑ Single Family Spray, LR ❑ Activated Sludge Spray, LR ❑ Activated Sludge Spray, HR ❑ Recycle/Reuse ❑ Activated Sludge Drip, LR ❑ Single Family Drip ❑ Reuse (Quality) 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 UV disinifection systems are no longer in -use and the system infects liquid sodium hypochlorite for disinfection. Otherwise flow is divided between all four treatment trains and all units appeared to be operating properly. A new splitter box was installed above the 100,000 qpd aeration units. Treatment Influent Pump Station Yes No NA NE Is the pump station free of bypass lines or structures? ❑ ❑ ❑ Is the general housekeeping acceptable? ❑ ❑ ❑ Are all pumps present? ❑ ❑ ❑ Are all pumps operable? ❑ ❑ ❑ Are floats/controls operable? ❑ ❑ ❑ Are audio and visual alarms available? ❑ ❑ ❑ Are audio and visual alarms operational? ❑ ❑ ❑ # Are SCADA/Telemetry alarms required? ❑ ❑ ❑ Are SCADA/Telemetry available? ❑ ❑ ❑ Are SCADA/Telemetry operational? 0 ❑ ❑ ❑ Comment: Lift Station 1 (near the neadworks of the WWTF) as well as Lift Station 7 (located at WWTF entrance on Sleepy Ct) were inspected during recent activities. High level floats were elevated causing visual and audible alarms to sound and an emergency signal activated telemetry for Treatment Flow Measurement -Influent Yes No NA NE Is flowmeter calibrated annually? ❑ ❑ 0 ❑ Is flowmeter operating properly? ❑ ❑ 0 ❑ Does flowmeter monitor continuously? ❑ ❑ 0 ❑ Page 3 of 7 DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C Permit: WQ0007569 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 01/20/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine Does flowmeter record flow? ❑ ❑ 0 ❑ Does flowmeter appear to monitor accurately? ❑ ❑ 0 ❑ Comment: The system does not meter flow into the WWTF. Treatment Flow Measurement -Water Use Records Yes No NA NE Is water use metered? ❑ ❑ ❑ Are the daily average values properly calculated? ❑ ❑ ❑ Comment: The system has its own water supply system which is metered. However, some of this flow also goes to another WWTF for treatment (e.g. Hestron Park WWTF. WQ0003271, also owned by CWS). 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? ■❑❑❑ Comment: Althouqh the flow meter had been calibrated 7/28/21, it was determined to have been not operating properly before Thanksgiving 2021. CWS staff informed WiRO of the problem and an agreement was made to estimate flow based on prior measurements and complete repairs/replacement asap. Repairs were determined to have been possible and were completed in 1/2022 with the unit calibrated thereafter by Delta Systems Environmental. Staff are planning to install a flow sensor to attach to the turbidity meter as a backup flow meter. Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Is generator tested weekly by interrupting primary power source? Is generator operable? Does generator have adequate fuel? ■❑❑❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: A permanent diesel -powered generator is located at the WWTP to power the system. The unit is equipped with a 500 gallon double -walled tank and is serviced yearly or as needed. The unit started and seemed to operate properly during the inspection. Treatment Barscreen Yes No NA NE Is it free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screenings in compliance? Are the bars spaced properly? Is the unit in good condition? ❑❑❑■ Comment: A small bar screen is present prior to entry into the EQ basin. The unit is hand -raked on a daily basis and removed material is placed in a dumpster for disposal. Treatment Activated Sludge Yes No NA NE Is the aeration mechanism operable? 0 ❑ ❑ ❑ Page 4 of 7 DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C Permit: WQ0007569 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 01/20/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine 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: The facility is equipped with 100,000 and 50,000 gpd dual train package units. Sludge is wasted as needed, depending upon settleometer results, which is checked at least three times per week. Aeration pumps operate continuously which also helps to maintain constant temperature in the units. 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? 0 ❑ ❑ ❑ Comment: Flow did not appear to flow evenly over the weirs in the clarifiers, mostly due to corrosion of the weir plates. However, the effluent appeared to be relatively clear and free of solids. 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? ❑ ❑ ❑ Is the mud well free of excessive solids and filter media? ❑ ❑ ❑ Does backwashing frequency appear adequate? 0 ❑ ❑ ❑ Comment: The system is equipped with two Fluidyne plate cloth filter assemblies, set up in parallel. Each assembly has three filters which are constructed with heavy gauge wire plates surrounded by cloth fabric. The units are backwashed every four hours or if water levels increase to a predetermined level. Backwash water is sent to a manhole located prior to Lift Station 1. 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: Solids are recovered by Aragona on a weekly basis, or as needed. Treatment Disinfection Yes No NA NE Is the system working? 0 ❑ ❑ ❑ Do the fecal coliform results indicate proper disinfection? 0 ❑ ❑ ❑ Page 5 of 7 DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C Permit: WQ0007569 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 01/20/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine 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: The two Trojan UV units which were installed in series are present, but not used (i.e. bypassed). Liquid sodium hypochlorite is used as the sole disinfection method and it is infected into the first chamber of the chlorine contact tank. The system has a backup infection pump at the water supply well -house. 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? ❑ ❑ 0❑ Are operational logs present? ❑ ❑ ❑ Page 6 of 7 DocuSign Envelope ID: 57CFF64B-F05B-40E7-A4E1-72C056F4442C Permit: WQ0007569 Owner - Facility: Carolina Water Service Inc of North Carolina Inspection Date: 01/20/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine Are lab sheets available for review? 0 ❑ ❑ ❑ Do lab sheets support data reported on NDMR? 0 ❑ ❑ ❑ Do lab sheets support data reported on GW-59s? 0 ❑ ❑ ❑ 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? ❑ ❑ ❑ Is a copy of the SOC readily available? ❑ ❑ 0 ❑ No treatment units bypassed since last inspection? 0 ❑ ❑ ❑ Comment: Monthly reports and lab data sheets for effluent and groundwater sampling is maintained within an organized binder. Several months of data was inspected including 5/2021 and 9/2020. Inspection results and maintenance activities are recorded on tablets using Lucite software program. Effluent sampling results indicate that discharge has exceeded 2L Standards of 1,000 mg/L TDS for Class GA and GSA groundwaters in 3/2020 and 7/2020 as well as 250 mg/L chloride in 3/2019, 11/2019, 7/2020 & 7/2021. Monitoring well sampling results have been exceeding the limit of 500 mg/L TDS in wells MW-4, MW-5 and MW-8 7/2021, 3/2021 (not MW-4), 11/2020, 7/2020, 3/2020. Monitoring well MW-4 has intermittently exceeded the limit of 1.5 mg/L total available nitrogen 3/2021, 7/2020 (also MW-8) and 3/2020 (also MW-8). MW-4 also exceeded the limit of 250 mg/L chloride 3/2020 during the period from the last inspection (2/14/2020) to the currently available information. Coastal Requirements Yes No NA NE Are essential treatment units provided in duplicate? 0 ❑ ❑ ❑ Is an adequately sized aerated equalization basin present? ❑ ❑ ❑ If so, is it operable? ❑ ❑ ❑ If present, are diffusers cleaned regularly? ❑ ❑ ❑ Is the equalization capacity adequate? 0 ❑ ❑ ❑ Comment: Page 7 of 7