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Posted on: February 26, 2018

Monthly Black and Veatch Report & Most Recent GenX Results

Black and Veatch Submits Monthly Update on Sweeney Pilot Test

Black and Veatch, the engineering firm contracted to assist CFPUA with its ongoing pilot test at Sweeney Water Treatment Plant, has submitted its monthly update on our progress.

The study has now entered the second phase of testing for both Granular Activated Carbon and Ion Exchange technologies. The goal of this final phase is to investigate the effectiveness of different filter media and longer contact times in removing per-fluorinated compounds and other emerging contaminants. The data from the second phase will be compared with data from the first phase—comparisons that will help staff understand how new technologies may improve water quality.

The report also illustrates the difficulty in testing treatment methods for new and unregulated compounds. Several compounds, including Nafion byproducts, do not have known authentic testing standards—leading to inconsistent results between analytical labs. Staff is working to review those differences and to clarify results.

CFPUA is one of the first utilities in the country to pursue treatment to remove compounds like GenX. The Sweeney pilot test continues to provide valuable information for our partners and us across the region. As we receive new updates, we will continue to share them with the public and with our neighbors in Brunswick and Pender Counties.

Most Recent GenX Results From the Sweeney Water Treatment Plant

Below are the most recent results for from our on-going GenX testing at the Sweeney Water Treatment Plant. Levels of GenX continue to remain below the DHHS health goal of 140 parts per trillion (ppt).


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