Tap WaterIndex

← Indiana

Tap water quality report

Gibson Water Authority

EPA monitoring tested this supplier for 35 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

35
contaminants tested
7
detected
4,835
people served
5
health-based violations
Indiana rankingsLead in IndianaPFAS in Indiana
Water source
SWP
Ownership
Local government
Counties served
Gibson

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.

5
health-based violations
42
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-03-01 → 2012-03-31
MCL Health-based Resolved 2012-03-01 → 2012-03-31
MCL Health-based Resolved 2012-03-01 → 2012-03-31
MCL Health-based Resolved 2012-03-01 → 2012-03-31
MCL Health-based Resolved 2012-03-01 → 2012-03-31
MR Monitoring Resolved 2022-10-01
MR Monitoring Resolved 2022-10-01
MR Monitoring Resolved 2022-10-01
MR Monitoring Resolved 2013-10-01 → 2013-12-31
MR Monitoring Resolved 2013-10-01 → 2013-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFOA 0.0049 µg/L 1/4 2025
Pfpea 0.0041 µg/L 1/4 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 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
TTHM
65.05 µg/L 81%
of the EPA limit 80 µg/L
worst single sample: 69.5 µg/L
34/34 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
45.35 µg/L 76%
of the EPA limit 60 µg/L
worst single sample: 46 µg/L
34/34 SYR4 2012–2019
Copper
70.8 µg/L 5.4%
of the EPA limit 1300 µg/L
worst single sample: 86 µg/L
23/40 SYR4 2016–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Lead
20.28 µg/L 135%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 37 µg/L
12/40 SYR4 2016–2019
28 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
JENKINS, ROY (STEVE)
Phone
812-768-6899
Email
[email protected]

Frequently asked questions about Gibson Water Authority

Is Gibson Water Authority tap water safe to drink?

EPA monitoring detected 7 contaminants in Gibson Water Authority'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 Gibson Water Authority's water?

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

How many people does Gibson Water Authority serve?

Gibson Water Authority reports serving 4,835 people in Indiana, per its EPA record.

Has Gibson Water Authority had any water quality violations?

The EPA has 42 violations on file for Gibson Water Authority, of which 5 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.