Drinking Water Systems in Four Lakes, Washington
1 water system are reported for this city, with a combined service population of 433. The systems have 1 EPA violation record in the five-year period ending June 30, 2026.
Water Systems Serving Four Lakes
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)6 records
Nitrate3 records
Thallium1 record
Chromium1 record
Gross Alpha1 record
Arsenic1 record
Cadmium1 record
Barium1 record
Fluoride1 record
Selenium1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.