Drinking Water Systems in O FALLON, Missouri

12 water systems are reported for this city, with a combined service population of 142,677. The systems have 45 EPA violation records in the five-year period ending June 30, 2026.

Water Systems Serving O FALLON

OFALLON PWS

32,515 served3 historical records1 recent
B

ST CHARLES PWSD 2 FORISTELL

550 served6 historical records1 recent
B

ST CHARLES CO PWSD 2 - SUMAC RIDGE

103 served0 historical records
A

ECM WATER & SEWER AUTHORITY - FLINT HILL

469 served5 historical records
A

ST CHARLES COUNTY PWSD 2 NORTH OAK DR

660 served0 historical records
A

ST CHARLES CO PWSD #2 WRIGHT CITY

3,550 served17 historical records3 recent
C

ST CHARLES COUNTY PWSD 2

100,587 served1 historical record
A

ST CHARLES CO PWSD 2 AUGUSTA

881 served1 historical record
A

ST CHARLES COUNTY PWSD 2 DUTZOW

400 served2 historical records
A

ST CHARLES COUNTY PWSD 2 WARREN

1,192 served3 historical records
A

ST PAUL PWS

1,700 served1 historical record
A

FENNEC FOX WAY LLC

70 served54 historical records40 recent
C

EPA Contaminant Categories in Historical Violation Records

Coliform (TCR)29 records
Revised Total Coliform Rule6 records
Consumer Confidence Rule5 records
Lead and Copper Rule3 records
Public Notice2 records
Groundwater Rule1 record
Gross Alpha1 record
Total Coliform1 record
Haloacetic Acids (HAA5)1 record
Total Trihalomethanes (TTHMs)1 record

Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.