GenX Information

Posted on: July 19, 2017

CFPUA Issues Update on GenX Testing Results

 To maintain our commitment to the public on the important matter of GenX in our water system, CFPUA offers the following update:   

  • On June 21, Chemours stated that they would voluntarily stop discharging the manufacturing effluent that contains GenX into the Cape Fear River.
  • On June 26, Eurofins—an independent laboratory contracted to conduct tests on CFPUA water samples—began testing samples from the Sweeney water plant. The testing has remained in effect, and is in addition to independent testing efforts that have been underway at the direction of NC DEQ and other regional utilities.
  • On June 27, NC DEQ verified that Chemours had stopped discharging GenX wastewater.
  • On July 11, CFPUA reported the first water sample results from Eurofins independent testing. They are as follows:

June 26: 156 ppt

June 28: 120 ppt

July 30: 90 ppt

July 3: 55 ppt

July 5: 87 ppt

  • On July 12, NC DEQ confirmed additional sources of GenX were still being discharged into the Cape Fear River after June 27 from the Chemours industrial complex.
  • On July 13, NC DEQ confirmed that the discharging of GenX from the Chemours complex had ended.
  • On July 14, NC DHHS released a health goal advising that GenX concentrations in drinking water at or below 140 parts per trillion (ppt) is a level based on conservative metrics that represent the concentration of GenX at which no adverse health effects would be anticipated over an entire lifetime of exposure to the most vulnerable members of the population.
  • On July 14, NC DEQ released results from samples collected from the Sweeney plant on June 22, June 29, and July 6. The data reveals concentrations of GenX trending downward, with July 6’s results at 87 ppt.
  • On July 19, CFPUA received tests for samples taken last week. The water samples results are as follows:

July 7: 132 ppt

July 10: 145 ppt

July 12: 122 ppt

  • On July 19, as standard practice, CFPUA shared updated test data with the proper officials with the City of Wilmington, New Hanover County, NC DEQ, and NC DHHS of the independent study results.

In keeping with NC DHHS’ advisory – which is the only measure CFPUA is able to operate under at this time—we are reporting that the July 10th sample is above the acceptable ppt level.

It is important to make clear, however, the July 10th sample was taken during a time period, as indicated above, when it is now known that GenX was being discharged by Chemours into the Cape Fear River.

We remain committed to being open and transparent to the public on this important matter. For that reason, we are reporting this finding.  

Within two days, GenX concentrations were back below the recommended 140 ppt. As an added measure of caution, CFPUA has ordered that independent testing by Eurofins be increased from three random samples per week to daily sample testing. We will share more results with the public on future sample tests as soon as they are available.

CFPUA remains committed to providing the highest quality drinking water for our customers. We will continue to prioritize communication and transparency as we seek additional information.

In the meantime, for members of our community who prefer to receive water from an alternate source, CFPUA started offering free water from a ground source on Saturday. This water is treated at CFPUA’s nanofiltration plant. On July 13, CFPUA sampled water at this Richardson Nanofiltration Plant—which serves the free water station at Ogden Park—for GenX. GenX was not detected. This water is supplied by aquifers that have not been affected by Chemours’ discharge of GenX. 

Residential CFPUA customers may fill their clean personal containers at New Hanover County’s Ogden Park near the tennis courts at 615 Ogden Park Drive. This is available daily from 8 am to 8 pm.


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