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Tap water quality report

Big Walnut Water Company

EPA monitoring tested this supplier for 5 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

5
contaminants tested
5
detected
500
people served
4
health-based violations
Indiana rankingsLead in IndianaPFAS in Indiana
Water source
GWP
Ownership
Local government
Counties served
Putnam

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.

4
health-based violations
60
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2004-09-01 → 2004-09-30
MCL Health-based Resolved 2004-09-01 → 2004-09-30
MCL Health-based Resolved 2004-09-01 → 2004-09-30
MCL Health-based Archived 1992-03-01 → 1992-03-31
RPT Monitoring Unaddressed 2025-07-02
RPT Monitoring Unaddressed 2025-07-02
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31

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
Lead
0.0014 mg/L 9.3%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2024
TTHM
26.8 µg/L 34%
of the EPA limit 80 µg/L
 6/6 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
28.5 µg/L 48%
of the EPA limit 60 µg/L
 6/6 SYR4 2014–2019
Copper
210 µg/L 16%
of the EPA limit 1300 µg/L
 5/5 SYR4 2018
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 3/5 SYR4 2018

Utility contact

Contact
MACE, JEFF
Phone
765-721-1989
Email
jetmace@gmail.com

Frequently asked questions about Big Walnut Water Company

Is Big Walnut Water Company tap water safe to drink?

EPA monitoring detected 5 contaminants in Big Walnut 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 Big Walnut Water Company's water?

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

How many people does Big Walnut Water Company serve?

Big Walnut Water Company reports serving 500 people in Indiana, per its EPA record.

Has Big Walnut Water Company had any water quality violations?

The EPA has 60 violations on file for Big Walnut Water Company, of which 4 are health-based (a contaminant limit or required treatment was breached) and 2 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.