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Home My WebLink AboutWQ0034715 Inspection.docxDocuSign Envelope ID: 382E391A-2515-4E78-AF6A-DCA759026BOD ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director The Club at 12 Oaks 700 Ivey Arbor Way Holly Springs, NC NORTH CAROLINA Environmental Quality April 19, 2024 Subject: Compliance Evaluation Inspection Permit # WQ0034715 Facility: WSLD 12 Oaks GC VI, LLC Wake County Mr. Parish, On April 16, 2024, Jim Westcott from the Raleigh Regional Office visited your conjunctive reclaimed water utilization system to evaluate compliance with the subject permit. The assistance of John Parrish and Davis Edmonds at the time of the inspection was appreciated. The facility is permitted for the operation a 400,000 gallon per day (GPD) conjunctive reclaimed water utilization system consisting of an influent flow meter; a 3,156,000 gallon unlined reclaimed water storage pond with dual 550 gallon per minute (GPM) vertical turbine reclaimed water utilization pumps and dual 3,250 cubic feet per minute (CFM) blowers; a weather station; a reclaimed water distribution flow meter; approximately 69.8 acres of golf course reclaimed area; and all associated piping, valves, controls, and appurtenances with no discharge of wastes to surface waters. The permit, which was issued April 12, 2022, is effective through July 31, 2028. Division records indicate the required annual fee for the period ending April 30, 2025, due May 11, 2024, is currently open. Inspection criteria consisted of the following: ❑ Review of permit conditions. ❑ Evaluation of facility information and wastewater collection and lagoon system. ❑ Review of logbook, operation, and maintenance plan (O&M), calibration records and Non - Discharge Monitoring Report (NDMR). ❑ On -site inspection of lagoon wastewater system and distribution components. Findings during the inspection were as follows: The system receives reclaimed water into a storage lagoon from the Utley Creek Water Reclamation Facility in Holly springs. Reclaimed water usage is collected from the Utley Creek Water Reclamation Facility (WQ0032289 - NC0063096). The distribution system is in a pump house above the storage lagoon which is controlled by a Flowtronex control system with VFD controller which operates two 60 Hp, 550 GPM US Motors vertical turbine pumps. NORTH CAROLINA � � North Carolina Department of Environmental Quality I Division of Water Resources Raleigh Regional Office 1 3800 Barrett Drive I Raleigh, North Carolina 27609 919.791.4200 DocuSign Envelope ID: 382E391A-2515-4E78-AF6A-DCA759026BOD An inline 5 Hp pump applies system pressure when the distribution system is not operating maintaining a system pressure of 128 psi. An additional tie in with a cross connection device can supply potable water to the system if required and controlled by a microcom Pro Star 15 controller with a solar charging panel. Usage records for the 2023 season were 7,577,516 million gallons (MG). The spray system is composed of 1000 spray heads and an onsite internal audit is conducted annually to ensure proper operation to all distribution areas. All reclaimed flows are applied to the fairway and potable water is applied to the greens and areas which are protected from buffered regions and established indigenous plantings. The freeboard level in the reclaimed pond was 3'. lagoon freeboard levels are recorded weekly. Solitude lake management conducts algae surface treatment applications as needed to the reclaimed water lagoon. An O&M manual was available at the time of inspection. Proper signage on all reclaimed water piping and appurtenances were clearly identified and located throughout the facility and color coded as non -potable. Pro -Pump calibrates the in -line flow meter and was recently serviced in February of 2024. Additional maintenance was performed with the replacement of the expansion tank and oil change and service of the in line vertical turbine pumps. Annual maintenance is performed on a scheduled basis. A map of the surrounding golf course detailed all interconnected main and lateral lines with independent shutoff and transfer valves in separate zones was available at the time of inspection. The Annual Standard Soils fertility analysis is conducted by Tri-Link solutions. Independent fertilization analysis is performed twice a year in addition to the permit required soils analysis. Records were available for review at the time of inspection. Please continue to periodically inspect and evaluate the wastewater spray irrigation system components are properly maintained and operating as designed. Maintain all associated operational records onsite for a period of fives as required by the subject permit. If you have questions or comments about this inspection or the requirements to take corrective action (if applicable), then please contact Jim Westcott at james.westcott(&ncdenr.gov or 919- 791-4247. Sincerely, Do''c''u..SiwwgnelId by: Na 372DCBCB61 EE4A11 Michael Hall, Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NCDEQ Cc: Non -Discharge Laserfiche REQ5 North Carolina Department ofEnvironmental Quality I Division ofWater Resources 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 NORTH CAROLINA 919.707.9000 onparhnem of EmironmanW 9uallly DocuSign Envelope ID: 382E391A-2515-4E78-AF6A-DCA759026BOD REQ5 North Carolina Department ofEnvironmental Quality I Division ofWater Resources 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 NORTH CAROLINA 919.707.9000 onparhnem of EmironmanW 9uallly