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Looking to find out more about how legacy chemicals like PFAS affect our water source? Learn more here.
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Have more questions regarding the safety of your drinking water provided by GWA? Ask us.
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Visit Guam EPA and find out more about their interim guidance on the island's dieldrin challenges and what it means for all of our water safety use.
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Useful links
MULTIPLE TEST RESULTS CONFIRM Y-15 TREATMENT SYSTEM EFFECTIVE, GWA REQUESTS GEPA RESCIND DO NOT DRINK ADVISORY
Today, the Guam Waterworks Authority (GWA) submitted a formal response to the Guam Environmental Protection Agency (EPA), requesting to rescind the “Do Not Drink Without Treatment” advisory for the Santa Rosa/Yigo area. GWA’s letter follows four weeks of comprehensive monitoring, treatment, and testing that confirms GWA’s drinking water from well Y-15 has no detection of dieldrin. Laboratory analysis performed with raw and finished water samples collected on Oct. 11, Oct. 16
GWA News
Nov 72 min read
Dieldrin IAL Update Release No. 4: FOR THE THIRD WEEK IN A ROW, TEST RESULTS SHOW NO DETECTION OF DIELDRIN AT WELL Y-15, TREATMENT SOLUTION SUCCESSFUL
No dieldrin has been detected at well Y-15 in Yigo after treatment, according to confirmed laboratory analysis after three rounds of testing. The results of “non-detect” continues to affirm the Guam Waterworks Authority’s (GWA) interim treatment system at well Y-15 has successfully removed dieldrin levels. This system, completed on Oct. 10, uses granular activated carbon (GAC) filtration, an EPA-approved and proven technology used to remove contaminants like dieldrin and PFA
GWA News
Nov 42 min read
Dieldrin IAL Update Release No. 3: TEST RESULTS SHOW NO DETECTION OF DIELDRIN AT WELL Y-15, TREATMENT SOLUTION SUCCESSFUL
No dieldrin has been detected at well Y-15 in Yigo, according to confirmed laboratory analysis after two rounds of testing. The results of “non-detect” affirms the Guam Waterworks Authority’s (GWA) interim treatment system at well Y-15 has successfully removed dieldrin levels. This system, completed on Oct. 10, uses granular activated carbon (GAC) filtration, an EPA-approved and proven technology used to remove contaminants like dieldrin and PFAS from drinking water. Dieldr
GWA News
Oct 293 min read
Dieldrin IAL Update Release No. 2: INTERIM TREATMENT SOLUTION FOR WELL Y-15 COMPLETE AND ONLINE
(Mangilao, GU) — On Oct. 12, the Guam Waterworks Authority (GWA) completed the successful installation of its interim treatment system...
GWA News
Oct 133 min read
Point of Entry (POE) / Point-of-Use (POU) Filtration System Program Frequently Asked Questions (FAQs)
Application forms available online. Review the FAQ's provided below to help you select the correct application form to submit to GWA....
GWA Customer Service
Oct 104 min read
Courtesy emergency bottled water supply to affected Santa Rosa GWA customers.
GWA in coordination with the Yigo Mayor's office will be providing limited supplies of bottled water to affected customers in the Santa Rosa zones.
GWA News
Oct 21 min read
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