Tap WaterIndex

← Illinois

Tap water quality report

Bethalto

EPA monitoring tested this supplier for 107 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

107
contaminants tested
23
detected
15,210
people served
0
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Local government
Counties served
Madison

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
17
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31
MR Monitoring Resolved 2021-08-01 → 2022-07-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0045 µg/L 2/2 2025
PFHXS 0.0036 µg/L 1/2 2025

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
990 µg/L 76%
of the EPA limit 1300 µg/L
 60/60 SYR4 2014–2017
Bromodichloromethane
9.364 µg/L
No EPA limit set
 29/29 SYR4 2012–2019
Chloroform
16 µg/L
No EPA limit set
 29/29 SYR4 2012–2019
TTHM
36.14 µg/L 45%
of the EPA limit 80 µg/L
 29/29 SYR4 2012–2019
Bromoform
9.444 µg/L
No EPA limit set
 28/29 SYR4 2012–2019
Dibromochloromethane
14.92 µg/L
No EPA limit set
 28/29 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
40.6 µg/L 68%
of the EPA limit 60 µg/L
 27/29 SYR4 2012–2019
Dibromoacetic Acid
5.8 µg/L
No EPA limit set
 26/29 SYR4 2012–2019
Lead
7.5 µg/L 50%
of the EPA limit 15 µg/L
 26/60 SYR4 2014–2017
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 22/22 LCR 2023
Nitrate
1700 µg/L 17%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Barium
38 µg/L 1.9%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Fluoride
1070 µg/L 27%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
Arsenic
1.4 µg/L 14%
of the EPA limit 10 µg/L
 2/3 SYR4 2012–2018
Combined Radium (-226 And -228)
1.01 pCi/L 20%
of the EPA limit 5 pCi/L
 2/3 SYR4 2013–2019
Dichloroacetic Acid
22.8 µg/L
No EPA limit set
 2/29 SYR4 2012–2019
Monobromoacetic Acid
5.6 µg/L
No EPA limit set
 2/29 SYR4 2012–2019
Trichloroethylene
0.6400 µg/L 13%
of the EPA limit 5 µg/L
 2/11 SYR4 2012–2018
Monochloroacetic Acid
2.62 µg/L
No EPA limit set
 1/29 SYR4 2012–2019
Selenium
3.3 µg/L 6.6%
of the EPA limit 50 µg/L
 1/3 SYR4 2012–2018
Trichloroacetic Acid
9.55 µg/L
No EPA limit set
 1/29 SYR4 2012–2019
84 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CHEATHAM, ROD A.
Phone
618-377-8126
Email
RCHEATHAM@BETHALTO.COM

Frequently asked questions about Bethalto

Is Bethalto tap water safe to drink?

EPA monitoring detected 23 contaminants in Bethalto'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 Bethalto's water?

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

How many people does Bethalto serve?

Bethalto reports serving 15,210 people in Illinois, per its EPA record.

Has Bethalto had any water quality violations?

The EPA has 17 violations on file for Bethalto, 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.