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Solution possibly found for contaminated water wells

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Blending could be a likely solution to address water contamination at two Hagatna wells shut down last month. Guam Waterworks Authority general manager Miguel Bordallo told KUAM News that the agency is working to procure a mobile treatment system for the wells in addition to potentially blending the well water with unaffected water through the transmission system.

"We have not done that with these two wells yet, but we have the ability to do it at a later date," he said, also confirming that it would bring the levels down the advisory below.

Bordallo said GWA tested the effectiveness of blending last month, with a sample from the Agana Heights tank, confirming that blending would work for one of the impacted wells. He said after the samples were collected the contaminated wells were shut down and the Agana Heights tank was blended before being released into the distribution system.

The USEPS told KUAM News that blending sources to minimize the concentration of the contaminant PFOS is an acceptable measure if it brings the concentration below advisory levels. Nevertheless, governor's special assistant Eric Palacios said it should be a last resort only after proper treatment.

Procurement of a mobile treatment system for the Agana wells could cost upwards of $300,000.

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