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Tap water quality report

Clay County Water Inc

EPA monitoring tested this supplier for 14 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
13
detected
2,015
people served
20
health-based violations
Water source
SWP
Ownership
Local government
Counties served
Clay

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

20
health-based violations
22
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2004-02-01 → 2004-02-29
TT Health-based Resolved 2004-02-01 → 2004-02-29
TT Health-based Resolved 2004-02-01 → 2004-02-29
TT Health-based Resolved 2004-02-01 → 2004-02-29
TT Health-based Resolved 2004-02-01 → 2004-02-29
TT Health-based Resolved 2004-01-01 → 2004-01-31
TT Health-based Resolved 2004-01-01 → 2004-01-31
TT Health-based Resolved 2004-01-01 → 2004-01-31
TT Health-based Resolved 2004-01-01 → 2004-01-31
TT Health-based Resolved 2004-01-01 → 2004-01-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
860 µg/L 66%
of the EPA limit 1300 µg/L
50/50 SYR4 2012–2017
Bromodichloromethane
11.2 µg/L
No EPA limit set
33/33 SYR4 2012–2019
Chloroform
69.5 µg/L
No EPA limit set
33/33 SYR4 2012–2019
TTHM
81.6 µg/L 102%
of the EPA limit, in the worst sample — 80 µg/L
33/33 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
86 µg/L 143%
of the EPA limit, in the worst sample — 60 µg/L
33/33 SYR4 2012–2019
Trichloroacetic Acid
44 µg/L
No EPA limit set
33/33 SYR4 2012–2019
Dichloroacetic Acid
42 µg/L
No EPA limit set
32/33 SYR4 2012–2019
Dibromochloromethane
4.715 µg/L
No EPA limit set
31/33 SYR4 2012–2019
Lead
2.5 µg/L 17%
of the EPA limit 15 µg/L
15/50 SYR4 2012–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
12/12 LCR 2023
Monobromoacetic Acid
21.1 µg/L
No EPA limit set
8/33 SYR4 2012–2019
Monochloroacetic Acid
19.2 µg/L
No EPA limit set
4/33 SYR4 2012–2019
Dibromoacetic Acid
2.05 µg/L
No EPA limit set
3/33 SYR4 2012–2019
1 contaminants tested, none detected
Bromoform

Utility contact

Contact
MCKNIGHT, ADAM
Phone
618-662-6666
Email
adamm@ceci.coop

Frequently asked questions about Clay County Water Inc

Is Clay County Water Inc tap water safe to drink?

EPA monitoring detected 13 contaminants in Clay County Water Inc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Clay County Water Inc's water?

EPA monitoring detected Copper, Bromodichloromethane, Chloroform, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Clay County Water Inc serve?

Clay County Water Inc reports serving 2,015 people in Illinois, per its EPA record.

Has Clay County Water Inc had any water quality violations?

The EPA has 22 violations on file for Clay County Water Inc, of which 20 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.