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SGWASA approves exfiltration study

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BUTNER — In a series of motions, the South Granville Water and Sewer Authority approved an exfiltration study at its Tuesday meeting.

The three-part motion included approval of a $76,500 budget amendment. $35,000 was approved for Frazier Engineering to perform flow monitoring and $33,000 was approved for Financial Consultants Inc. to perform the study. The remaining $8,500 was approved toward the proposed I-85 Sanitary Sewer Project Prioritization and Scheduling analysis and report.

“This is a study that determines how much wastewater may leak out of the pipes and is done before any wastewater system improvements.” SGWASA Executive Director Scott Schroyer told the board.

Schroyer added that quantifying the exhilaration values for the wastewater system would be a way for SGWASA to quantify nutrient reduction credits through upgrading the system.

Board member Jimmy Gooch questioned Schroyer over the need for the study, inquiring as to whether he was recommended by the NC Department of Environmental Quality.

“DEQ considers fixing leaks in the wastewater pipes remedying any illicit discharge,” Schroyer said. “Once we do that, we can qualify for credits generated that keeps nutrients out of Falls Lake tributaries. So yes, I think it’s a good program.”

Board attorney Jim Wrenn further elaborated that by not quantifying exfiltration values, SGWASA would lose credits on system improvements that are to be done anyway.

With the board approving the measure, Frazier Engineering would immediately begin the flow monitoring process. The study is expected to come before the board by spring 2020.

In other board matters, a second extension request for final water and sewer was granted to Crosswinds Developments Inc. for Applewood Townhomes West, located on Joe Peed Road in Creedmoor. The new deadline has been extended to Dec. 1, 2020.

The next meeting of the South Granville Water and Sewer Authority is scheduled for Nov. 12 at 6 p.m. in the Council Room of Butner Town Hall, 415 Central Ave.