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Tap water quality report

Clarks Mhp

EPA monitoring tested this supplier for 50 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
9
detected
90
people served
13
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Private
Counties served
Winnebago

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.

13
health-based violations
334
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1998-07-01 → 1998-07-31
MCL Health-based Archived 1998-07-01 → 1998-07-31
MCL Health-based Archived 1998-06-01 → 1998-06-30
MCL Health-based Archived 1998-06-01 → 1998-06-30
MCL Health-based Archived 1993-07-01 → 1993-07-31
MCL Health-based Archived 1993-07-01 → 1993-07-31
MCL Health-based Archived 1993-07-01 → 1993-07-31
MCL Health-based Archived 1993-04-01 → 1993-04-30
MCL Health-based Archived 1993-04-01 → 1993-04-30
MCL Health-based Archived 1992-08-01 → 1992-08-31

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
Nitrate
2580 µg/L 26%
of the EPA limit 10000 µg/L
 22/22 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2025
Nitrate-Nitrite
2580 µg/L 26%
of the EPA limit 10000 µg/L
 11/11 SYR4 2012–2019
Arsenic
0.9540 µg/L 9.5%
of the EPA limit 10 µg/L
 3/3 SYR4 2012–2018
Barium
288 µg/L 14%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Combined Radium (-226 And -228)
2.97 pCi/L 59%
of the EPA limit 5 pCi/L
 3/3 SYR4 2012–2018
Fluoride
151 µg/L 3.8%
of the EPA limit 4000 µg/L
 2/3 SYR4 2012–2018
Dibromochloromethane
1.3 µg/L
No EPA limit set
 1/2 SYR4 2014–2017
TTHM
1.3 µg/L 1.6%
of the EPA limit 80 µg/L
 1/2 SYR4 2014–2017
41 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromoacetic AcidDichloroacetic AcidEthylbenzeneLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CLARK, CRAIG A.
Phone
815-885-2043

Frequently asked questions about Clarks Mhp

Is Clarks Mhp tap water safe to drink?

EPA monitoring detected 9 contaminants in Clarks Mhp'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 Clarks Mhp's water?

EPA monitoring detected Nitrate, Lead, Nitrate-Nitrite, Arsenic, Barium, and others. The full list with the level and data source for each is above.

How many people does Clarks Mhp serve?

Clarks Mhp reports serving 90 people in Illinois, per its EPA record.

Has Clarks Mhp had any water quality violations?

The EPA has 334 violations on file for Clarks Mhp, of which 13 are health-based (a contaminant limit or required treatment was breached) and 2 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.