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St. John Municipal Water Utility

EPA monitoring tested this supplier for 104 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
10
detected
25,700
people served
10
health-based violations
Indiana rankingsLead in IndianaPFAS in Indiana
Water source
Ground water
Ownership
Local government
Counties served
Lake

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.

10
health-based violations
96
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 1996-10-01 → 1996-10-31
MCL Health-based Resolved 1996-10-01 → 1996-10-31
MCL Health-based Resolved 1996-10-01 → 1996-10-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31

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 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
946 µg/L 73%
of the EPA limit 1300 µg/L
worst single sample: 1000 µg/L
19/20 SYR4 2017
TTHM
22.225 µg/L 28%
of the EPA limit 80 µg/L
worst single sample: 22.3 µg/L
16/32 SYR4 2012–2019
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Lead
13.1 µg/L 87%
of the EPA limit 15 µg/L
worst single sample: 17 µg/L
11/20 SYR4 2017
Total Haloacetic Acids (HAA5)
14.03 µg/L 23%
of the EPA limit 60 µg/L
worst single sample: 16.2 µg/L
8/32 SYR4 2012–2019
Fluoride
784 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 800 µg/L
5/5 SYR4 2014–2017
Barium
23.4 µg/L 1.2%
of the EPA limit 2000 µg/L
worst single sample: 24 µg/L
4/4 SYR4 2014–2017
Lithium
83.8 µg/L
No EPA limit set
 4/4 UCMR-5 2025
Gross Alpha, Excl. Radon And U
1.892 pCi/L 13%
of the EPA limit 15 pCi/L
worst single sample: 1.94 pCi/L
2/2 SYR4 2018
Di(2-ethylhexyl) Phthalate
1.5 µg/L 25%
of the EPA limit 6 µg/L
 1/13 SYR4 2012–2018
94 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ANDERKO, TAMMY
Phone
219-365-4655
Email
[email protected]

Frequently asked questions about St. John Municipal Water Utility

Is St. John Municipal Water Utility tap water safe to drink?

EPA monitoring detected 10 contaminants in St. John Municipal Water Utility'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 St. John Municipal Water Utility's water?

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

How many people does St. John Municipal Water Utility serve?

St. John Municipal Water Utility reports serving 25,700 people in Indiana, per its EPA record.

Has St. John Municipal Water Utility had any water quality violations?

The EPA has 96 violations on file for St. John Municipal Water Utility, of which 10 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.