Tap water in Troy, IL — ZIP 62234
6 public water systems serving about 82,996 people. PFAS "forever chemicals" have been detected here.
C
Fair
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 62234
Collinsville
PWSID IL1194280 · serves 30,616 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 22 ppt — above federal limit
Troy
PWSID IL1191000 · serves 16,962 ·
groundwater
0 health-based / 1 total violations (5 yrs)
· PFAS up to 3.9 ppt
Caseyville
PWSID IL1630250 · serves 13,798 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 12.2 ppt
Maryville
PWSID IL1190750 · serves 10,150 ·
groundwater
0 health-based / 1 total violations (5 yrs)
Clark County Cons Pwsd 1
PWSID MO2024138 · serves 8,000 ·
groundwater
0 health-based / 2 total violations (5 yrs)
Tritownship Water District
PWSID IL1190080 · serves 3,470 ·
surface water
0 health-based / 3 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology