Drinking Water Systems in THOMPSON, Iowa

3 water systems are reported for this city, with a combined service population of 1,003. The systems have 1 EPA violation record in the five-year period ending June 30, 2026.

Water Systems Serving THOMPSON

CRYSTAL LAKE WATER SUPPLY

255 served1 historical record
A

THOMPSON WATER WORKS

499 served13 historical records
A

LELAND WATER SUPPLY

249 served3 historical records1 recent
B

EPA Contaminant Categories in Historical Violation Records

Coliform (TCR)2 records
Arsenic2 records
Cadmium1 record
Lead and Copper Rule1 record
Nitrate1 record
Thallium1 record
Vinyl chloride1 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.