Tap WaterIndex

← Montana

Tap water quality report

Fisher Water Service

EPA monitoring tested this supplier for 14 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
10
detected
750
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
SWP
Ownership
Private
Counties served
Yellowstone

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
73
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2024-12-30
MR Monitoring Resolved 2024-12-30
MR Monitoring Resolved 2021-12-30
MR Monitoring Resolved 2021-12-30
Other Monitoring Resolved 2021-07-01
Other Monitoring Resolved 2021-07-01
Other Monitoring Resolved 2020-07-01
Other Monitoring Resolved 2020-07-01
Other Monitoring Resolved 2019-07-01
Other Monitoring Resolved 2019-07-01

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
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Copper
3.3 µg/L 0.3%
of the EPA limit 1300 µg/L
 5/15 SYR4 2012–2018
Bromodichloromethane
8.7 µg/L
No EPA limit set
 4/4 SYR4 2012–2013
Chloroform
38.4 µg/L
No EPA limit set
 4/4 SYR4 2012–2013
Dichloroacetic Acid
11.3 µg/L
No EPA limit set
 4/4 SYR4 2012–2013
TTHM
49.2 µg/L 62%
of the EPA limit 80 µg/L
 4/4 SYR4 2012–2013
Total Haloacetic Acids (HAA5)
29 µg/L 48%
of the EPA limit 60 µg/L
 4/4 SYR4 2012–2013
Trichloroacetic Acid
12.7 µg/L
No EPA limit set
 4/4 SYR4 2012–2013
Dibromochloromethane
2.1 µg/L
No EPA limit set
 3/4 SYR4 2012–2013
Monochloroacetic Acid
1.6 µg/L
No EPA limit set
 2/4 SYR4 2012–2013
4 contaminants tested, none detected
BromoformDibromoacetic AcidLeadMonobromoacetic Acid

Utility contact

Contact
LORENZ, CHAD A
Phone
406-252-8860

Frequently asked questions about Fisher Water Service

Is Fisher Water Service tap water safe to drink?

EPA monitoring detected 10 contaminants in Fisher Water Service'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 Fisher Water Service's water?

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

How many people does Fisher Water Service serve?

Fisher Water Service reports serving 750 people in Montana, per its EPA record.

Has Fisher Water Service had any water quality violations?

The EPA has 73 violations on file for Fisher Water Service, 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.