Guam Waterworks Authority has completed the installation of an interim treatment system at a Yigo water well contaminated with the pesticide dieldrin.
In an announcement Monday afternoon, the agency said after four consecutive weeks of satisfactory laboratory results, GWA will confer with Guam EPA to lift the “do not drink without treatment” advisory.
GWA General Manager Miguel C. Bordallo said the interim treatment system will remove contaminants like dieldrin and PFAS from the water while the agency works on the long-term solution for the Y-15 well.
The interim treatment system uses granular activated carbon filtration, an EPA-approved and proven technology.
The weekly analysis will be expedited and performed by an EPA-certified laboratory in the United States, according to GWA.