Drinking Water Systems in COLUMBIA, Maryland
2 water systems are reported for this city, with a combined service population of 286,458. The systems have 0 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving COLUMBIA
HOWARD COUNTY D.P.W. DISTRIBUTION
286,158 served2 historical records
A
CEDAR MOBILE HOME PARK
300 served1 historical record
A
EPA Contaminant Categories in Historical Violation 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.