Drinking Water Systems in MANGILAO, Guam
3 water systems are reported for this city, with a combined service population of 166,406. The systems have 0 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving MANGILAO
GWA NORTHERN WATER SYSTEM
139,207 served1 historical record
A
GWA CENTRAL WATER SYSTEM
21,398 served10 historical records
A
GWA SOUTHERN WATER SYSTEM
5,801 served1 historical record
A
EPA Contaminant Categories in Historical Violation Records
Public Notice8 records
Lead and Copper Rule1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.