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Tap water quality report

Mill Creek Pwd

EPA monitoring tested this supplier for 110 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
19
detected
5,755
people served
0
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Local government
Counties served
Adams

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.

0
health-based violations
8
violations on file
2
still open
ViolationTypeStatusPeriod
MR Monitoring Unaddressed 2025-07-01
MR Monitoring Unaddressed 2025-07-01
MR Monitoring Resolved 2012-01-01 → 2012-03-31
MR Monitoring Resolved 2012-01-01 → 2012-03-31
MR Monitoring Archived 1995-08-01 → 1995-08-31
MR Monitoring Archived 1995-08-01 → 1995-08-31
MR Monitoring Archived 1995-08-01 → 1995-08-31
MR Monitoring Archived 1977-06-30 → 1981-06-29

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
9100 µg/L 91%
of the EPA limit 10000 µg/L
worst single sample: 9900 µg/L
134/138 SYR4 2012–2019
Copper
2016 µg/L 155%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
worst single sample: 3800 µg/L
125/132 SYR4 2012–2019
Lead
8.215 µg/L 55%
of the EPA limit 15 µg/L
worst single sample: 14.8 µg/L
60/132 SYR4 2012–2019
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
 26/26 LCR 2026
Nitrate-Nitrite
8315 µg/L 83%
of the EPA limit 10000 µg/L
worst single sample: 8570 µg/L
16/16 SYR4 2012–2018
Bromodichloromethane
1.86 µg/L
No EPA limit set
worst single sample: 1.92 µg/L
7/7 SYR4 2014–2019
Bromoform
4.215 µg/L
No EPA limit set
worst single sample: 4.32 µg/L
7/7 SYR4 2014–2019
Dibromoacetic Acid
2.286 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
7/7 SYR4 2014–2019
Dibromochloromethane
3.882 µg/L
No EPA limit set
worst single sample: 3.9 µg/L
7/7 SYR4 2014–2019
TTHM
10.161 µg/L 13%
of the EPA limit 80 µg/L
worst single sample: 10.23 µg/L
7/7 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
2.286 µg/L 3.8%
of the EPA limit 60 µg/L
worst single sample: 2.4 µg/L
7/7 SYR4 2014–2019
Barium
127 µg/L 6.4%
of the EPA limit 2000 µg/L
worst single sample: 130 µg/L
3/3 SYR4 2012–2018
Chloroform
0.6676 µg/L
No EPA limit set
worst single sample: 0.6760 µg/L
3/7 SYR4 2014–2019
Fluoride
1175 µg/L 29%
of the EPA limit 4000 µg/L
worst single sample: 1190 µg/L
3/3 SYR4 2012–2018
Selenium
5.325 µg/L 11%
of the EPA limit 50 µg/L
worst single sample: 5.5 µg/L
2/3 SYR4 2012–2018
Lithium
20 µg/L
No EPA limit set
 2/2 UCMR-5 2023
Arsenic
1.3 µg/L 13%
of the EPA limit 10 µg/L
 1/3 SYR4 2012–2018
Chromium
5.1 µg/L 5.1%
of the EPA limit 100 µg/L
 1/3 SYR4 2012–2018
Combined Radium (-226 And -228)
0.3080 pCi/L 6.2%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromateChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloriteDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WELLMAN, TYLER
Phone
217-224-9343
Email
[email protected]

Frequently asked questions about Mill Creek Pwd

Is Mill Creek Pwd tap water safe to drink?

EPA monitoring detected 19 contaminants in Mill Creek Pwd'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 Mill Creek Pwd's water?

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

How many people does Mill Creek Pwd serve?

Mill Creek Pwd reports serving 5,755 people in Illinois, per its EPA record.

Has Mill Creek Pwd had any water quality violations?

The EPA has 8 violations on file for Mill Creek Pwd, of which 0 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.