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Tap water quality report

Shelbyville

EPA monitoring tested this supplier for 110 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
17
detected
5,600
people served
0
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Local government
Counties served
Shelby

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
7
violations on file
1
still open
ViolationTypeStatusPeriod
RPT Monitoring Resolved 2025-07-02
RPT Monitoring Resolved 2025-07-02
RPT Monitoring Resolved 2025-07-02
Other Monitoring Unaddressed 2025-07-01
MR Monitoring Archived 1998-12-01 → 1998-12-31
MR Monitoring Archived 1998-12-01 → 1998-12-31
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
Copper
800 µg/L 62%
of the EPA limit 1300 µg/L
worst single sample: 1800 µg/L
41/41 SYR4 2014–2017
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2025
Nitrate
4500 µg/L 45%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Lead
6.545 µg/L 44%
of the EPA limit 15 µg/L
worst single sample: 6.6 µg/L
12/41 SYR4 2014–2017
Bromodichloromethane
12.25 µg/L
No EPA limit set
worst single sample: 12.6 µg/L
8/8 SYR4 2013–2019
Bromoform
2.07825 µg/L
No EPA limit set
worst single sample: 2.08 µg/L
8/8 SYR4 2013–2019
Chloroform
11.26 µg/L
No EPA limit set
worst single sample: 11.4 µg/L
8/8 SYR4 2013–2019
Dibromoacetic Acid
3.7755 µg/L
No EPA limit set
worst single sample: 4.01 µg/L
8/8 SYR4 2013–2019
Dibromochloromethane
9.69905 µg/L
No EPA limit set
worst single sample: 9.88 µg/L
8/8 SYR4 2013–2019
TTHM
34.95 µg/L 44%
of the EPA limit 80 µg/L
worst single sample: 36 µg/L
8/8 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
12.607 µg/L 21%
of the EPA limit 60 µg/L
worst single sample: 14 µg/L
8/8 SYR4 2013–2019
Dichloroacetic Acid
6.7045 µg/L
No EPA limit set
worst single sample: 7 µg/L
4/8 SYR4 2013–2019
Trichloroacetic Acid
2.7355 µg/L
No EPA limit set
worst single sample: 2.83 µg/L
4/8 SYR4 2013–2019
Barium
67.6 µg/L 3.4%
of the EPA limit 2000 µg/L
worst single sample: 69 µg/L
3/3 SYR4 2014–2017
Nitrate-Nitrite
4060 µg/L 41%
of the EPA limit 10000 µg/L
worst single sample: 4100 µg/L
3/3 SYR4 2012–2018
Fluoride
958.3 µg/L 24%
of the EPA limit 4000 µg/L
worst single sample: 967 µg/L
2/3 SYR4 2014–2017
Combined Radium (-226 And -228)
0.2520 pCi/L 5%
of the EPA limit 5 pCi/L
 1/2 SYR4 2012–2017
93 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromateChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloriteChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HAMMOND, DEBBIE
Phone
217-774-5131

Frequently asked questions about Shelbyville

Is Shelbyville tap water safe to drink?

EPA monitoring detected 17 contaminants in Shelbyville'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 Shelbyville's water?

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

How many people does Shelbyville serve?

Shelbyville reports serving 5,600 people in Illinois, per its EPA record.

Has Shelbyville had any water quality violations?

The EPA has 7 violations on file for Shelbyville, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.