Drinking Water Systems in OTTAWA, Illinois
7 water systems are reported for this city, with a combined service population of 19,288. The systems have 131 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving OTTAWA
OTTAWA
18,097 served76 historical records10 recent
D
LA SALLE COUNTY NURSING HOME
100 served18 historical records4 recent
C
LAND AND WTR ASSN
83 served41 historical records19 recent
F
FIELDS HILL IMPROVEMENT ASSOCIATION
312 served102 historical records88 recent
D
OAKLANE SBDV
63 served10 historical records2 recent
B
NAPLATE
465 served58 historical records2 recent
B
RETZ ADDN IMPROVEMENT ASSOCIATION
168 served18 historical records6 recent
D
EPA Contaminant Categories in Historical Violation Records
Radium-22681 records
Public Notice51 records
Revised Total Coliform Rule31 records
Chlorine26 records
Lead and Copper Rule19 records
Coliform (TCR)19 records
Consumer Confidence Rule11 records
Gross Alpha8 records
Total Trihalomethanes (TTHMs)6 records
Haloacetic Acids (HAA5)6 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.