Drinking Water Systems in Littlerock, Washington
1 water system are reported for this city, with a combined service population of 639. The systems have 1 EPA violation record in the five-year period ending June 30, 2026.
Water Systems Serving Littlerock
EPA Contaminant Categories in Historical Violation Records
Diquat3 records
Coliform (TCR)3 records
Revised Total Coliform Rule1 record
Selenium1 record
Gross Alpha1 record
Thallium1 record
Nitrate1 record
Fluoride1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.