Drinking Water Systems in NORTHFIELD, Illinois
1 water system are reported for this city, with a combined service population of 5,470. The systems have 1 EPA violation record in the five-year period ending June 30, 2026.
Water Systems Serving NORTHFIELD
EPA Contaminant Categories in Historical Violation Records
Lead and Copper Rule2 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.