The Guam Environmental Protection Agency issued a violation notice to Andersen Air Force Base Northwest Field Facility after finding non-approved chemicals used for treating water.
According to the notice, Guam EPA charged with the responsibility of implementing the Guam Pesticides Act, found there was a possible misuse of a product to disinfect water for distribution.
On Dec. 28, 2018, a routine sanitary survey inspection was conducted on a water storage tank on Northwest Field and Guam EPA staff discovered a different form of chlorination from what was approved by Guam EPA was installed, the notice stated.
A review by Guam EPA's Pesticides Enforcement Program found the product is a pesticide and is used only for swimming pools, per the product labeling. Guam EPA imposed a $750 administrative penalty.
Andersen in a release said it used Pool Time chlorination tabs to sanitize a half-million-gallon drinking water tank that serviced the facilities on Northwest Field; however, Guam EPA classifies the tablets as a pesticide and when this became known, the use of the tablets was immediately ceased.