CFPUA uses new testing method; GenX levels fall - WECT, weather & sports Wilmington, NC

CFPUA uses new testing method; GenX levels fall

Pictured is an accelerated column test machine. (Source: CFPUA) Pictured is an accelerated column test machine. (Source: CFPUA)
(Source: CFPUA) (Source: CFPUA)
(Source: CFPUA) (Source: CFPUA)

The Cape Fear Public Utility Authority is utilizing another test method to get water data more quickly and measure how effective granular activated carbon filter technology can be.

According to its Monday afternoon update, the CFPUA has begun using an accelerated column test (ACT) in addition to ongoing pilot tests at Sweeney Water Treatment Plant.

ACT measures the potential of new technologies to treat for compounds such as GenX, an unregulated chemical discharged into the Cape Fear River by the Chemours Company.

Operated by Calgon Carbon Corporation in Pittsburgh, ACT allows CFPUA to test treatment technologies in shorter periods of time, thereby increasing the potential of receiving actionable data in less time.

The test runs water through a type of granular activated carbon to measure its ability to absorb perfluorinated compounds. When the carbon becomes full and loses its ability to attract these compounds, GenX will break through and be present in test samples. The breakthrough timeline will allow CFPUA to measure how effective this technology may be at Sweeney Water Treatment Plant. 

The latest results from GenX testing were also released Monday. On Sept. 18, GenX levels in finished or treated water were 25 parts per trillion, the lowest number since testing began in June and well below the NC Department of Health and Human Services health goal of 140 ppt. 

Raw water samples have not been taken since Aug. 19.

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