The samples were collected on Oct. 11 and Oct. 16, and the analyses were conducted by Eurofins Eaton Analytical, an EPA-certified laboratory in California.
A third sample was collected on Oct. 23 which is currently out for testing.
GWA's Y-15 water well in Yigo was outfitted with an interim water treatment system on Oct. 12. Photo by Skyler Obispo
“After two more consecutive weeks of satisfactory laboratory results, GWA will confer with [the Guam Environmental Protection Agency] to lift the ‘Do Not Drink without Treatment’ advisory issued to affected GWA customers in the Yigo/Santa Rosa area,” GWA said.
Until then, the utility will continue to operate the GAC treatment system at Y-15 and until the permanent treatment system is completed.
According to Oct. 21 dieldrin sampling results from 124 GWA wells, 83 locations showed a running annual average of 0.00 to 0.10 parts per billion (ppb), while 32 locations had no traces of dieldrin. Two locations — D-17 in Mangilao and Y-15 in Yigo — tested at 0.2 to 0.5 ppb and 0.5 ppb or higher, respectively.
D-17 according to GWA has been offline since July 31 with treatment under construction.
On Oct. 10, GWA launched its point-of-use and point-of-entry treatment system programs which supplied NSF 53 or NSF 401 certified treatment systems to affected customers or provided reimbursements to customers who had purchased their own systems.
“While the interim GAC system provides strong treatment performance at the facility level, the POE program offers an additional safeguard and peace of mind for customers until GWA’s permanent GAC treatment system is fully operational,” the utility said. mbj
Regional leaders, government officials, and industry executives gathered at the Guam International Airport Authority on Wednesday, July 22 for the inaugural session of the Guam-CNMI Visa Waiver Working Group, driving a unified regional effort to expand the Guam-CNMI Visa Waiver Program to include the Philippines.
The commercial adult-use cannabis industry on Guam has officially launched following the issuance of the island's first recreational cannabis cultivation license to local grower Stephen Roberto, operator for Deep Green Guam of Guam Real Deal, LLC.
The Guam Economic Development Authority awarded $316,857.94 in grant funding to 17 local community organizations and public agencies during a check presentation ceremony at Adelup on Wednesday, July 15.
