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Tap water quality report

Gateway Regional Water Company

EPA monitoring tested this supplier for 74 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

74
contaminants tested
18
detected
1
people served
0
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Surface water
Ownership
Local government
Counties served
Clinton

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
4
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31

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
1500 µg/L 15%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Bromodichloromethane
11 µg/L
No EPA limit set
 13/13 SYR4 2012–2019
Chloroform
61.3 µg/L
No EPA limit set
 13/13 SYR4 2012–2019
Dichloroacetic Acid
26.4 µg/L
No EPA limit set
 13/13 SYR4 2012–2019
TTHM
73.1 µg/L 91%
of the EPA limit 80 µg/L
 13/13 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
56 µg/L 93%
of the EPA limit 60 µg/L
 13/13 SYR4 2012–2019
Trichloroacetic Acid
18.5 µg/L
No EPA limit set
 13/13 SYR4 2012–2019
Dibromochloromethane
2.6 µg/L
No EPA limit set
 12/13 SYR4 2012–2019
Simazine
3.1 µg/L 78%
of the EPA limit 4 µg/L
 11/33 SYR4 2012–2019
Atrazine
2 µg/L 67%
of the EPA limit 3 µg/L
 8/33 SYR4 2012–2019
Barium
64 µg/L 3.2%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2019
Fluoride
1110 µg/L 28%
of the EPA limit 4000 µg/L
 8/8 SYR4 2012–2019
Arsenic
1.5 µg/L 15%
of the EPA limit 10 µg/L
 7/8 SYR4 2012–2019
Monobromoacetic Acid
17.2 µg/L
No EPA limit set
 3/13 SYR4 2012–2019
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
 1/13 SYR4 2012–2019
Monochloroacetic Acid
2.76 µg/L
No EPA limit set
 1/13 SYR4 2012–2019
Nitrate-Nitrite
240 µg/L 2.4%
of the EPA limit 10000 µg/L
 1/1 SYR4 2014
Selenium
2.3 µg/L 4.6%
of the EPA limit 50 µg/L
 1/8 SYR4 2012–2019
56 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
NIX, TERRY
Phone
618-775-1004
Email
TNIXGATEWAY@YAHOO.COM

Frequently asked questions about Gateway Regional Water Company

Is Gateway Regional Water Company tap water safe to drink?

EPA monitoring detected 18 contaminants in Gateway Regional Water Company'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 Gateway Regional Water Company's water?

EPA monitoring detected Nitrate, Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Gateway Regional Water Company serve?

Gateway Regional Water Company reports serving 1 people in Illinois, per its EPA record.

Has Gateway Regional Water Company had any water quality violations?

The EPA has 4 violations on file for Gateway Regional Water Company, of which 0 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.