The former Naval Air Station in Tiyan and 10 military sites in Guam are covered by a Pentagon-ordered study announced in March to determine the risk of contamination with the same potentially cancer-causing chemical found in some of Guam Waterworks Authority’s drinking water wells, a federal document states.
Located in the Tiyan area near the international airport, Naval Air Station was turned over to the government of Guam after the facility closed in 1995. The Tiyan area now hosts Tiyan High School, Guahan Academy Charter School, Guam Department of Education offices, and a mix of abandoned and occupied houses.
Tiyan sits above part of the northern aquifer, which is Guam’s underground source of fresh water, according to an environmental impact study for the closure of the former Naval Air Station.
The additional sites that will be tested for potential drinking water contamination fall under the Navy’s authority, but some of them are located within Andersen Air Force Base, according to the list.