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Tap water quality report

Patterson (Inc As Wilmington)

EPA monitoring tested this supplier for 14 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
10
detected
320
people served
2
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
GWP
Ownership
Local government
Counties served
Greene

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.

2
health-based violations
32
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1996-08-01
TT Health-based Resolved 1996-01-26
Other Monitoring Resolved 2022-10-15
Other Monitoring Resolved 2022-10-15
Other Monitoring Resolved 2022-10-15
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01
Other Monitoring Resolved 2008-07-01

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2025
Copper
870.9 µg/L 67%
of the EPA limit 1300 µg/L
worst single sample: 957 µg/L
15/15 SYR4 2012–2018
Dibromoacetic Acid
2.09 µg/L
No EPA limit set
worst single sample: 2.1 µg/L
3/3 SYR4 2012–2017
Dichloroacetic Acid
2.09 µg/L
No EPA limit set
worst single sample: 2.1 µg/L
3/3 SYR4 2012–2017
Total Haloacetic Acids (HAA5)
4.18 µg/L 7%
of the EPA limit 60 µg/L
worst single sample: 4.2 µg/L
3/3 SYR4 2012–2017
Bromodichloromethane
6.1805 µg/L
No EPA limit set
worst single sample: 6.25 µg/L
2/2 SYR4 2014–2017
Chloroform
3.8485 µg/L
No EPA limit set
worst single sample: 3.99 µg/L
2/2 SYR4 2014–2017
Dibromochloromethane
7.4755 µg/L
No EPA limit set
worst single sample: 7.56 µg/L
2/2 SYR4 2014–2017
TTHM
17.5925 µg/L 22%
of the EPA limit 80 µg/L
worst single sample: 17.8 µg/L
2/2 SYR4 2014–2017
Bromoform
1.76 µg/L
No EPA limit set
 1/2 SYR4 2014–2017
4 contaminants tested, none detected
LeadMonobromoacetic AcidMonochloroacetic AcidTrichloroacetic Acid

Utility contact

Contact
FORD, CHRIS
Phone
217-320-8694
Email
fordman6795@yahoo.com

Frequently asked questions about Patterson (Inc As Wilmington)

Is Patterson (Inc As Wilmington) tap water safe to drink?

EPA monitoring detected 10 contaminants in Patterson (Inc As Wilmington)'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 Patterson (Inc As Wilmington)'s water?

EPA monitoring detected Lead, Copper, Dibromoacetic Acid, Dichloroacetic Acid, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Patterson (Inc As Wilmington) serve?

Patterson (Inc As Wilmington) reports serving 320 people in Illinois, per its EPA record.

Has Patterson (Inc As Wilmington) had any water quality violations?

The EPA has 32 violations on file for Patterson (Inc As Wilmington), of which 2 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.