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Tap water quality report

Ncmrwa Tiber Service Area

EPA monitoring tested this supplier for 11 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

11
contaminants tested
10
detected
200
people served
74
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
SWP
Ownership
Local government
Counties served
Liberty

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.

74
health-based violations
86
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-01-01 → 2024-03-31
MCL Health-based Resolved 2024-01-01 → 2024-03-31
MCL Health-based Resolved 2024-01-01 → 2024-03-31
MCL Health-based Resolved 2024-01-01 → 2024-03-31
MCL Health-based Resolved 2024-01-01 → 2024-03-31
MCL Health-based Resolved 2024-01-01 → 2024-03-31
MCL Health-based Resolved 2023-10-01 → 2023-12-31

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
Bromodichloromethane
15 µg/L
No EPA limit set
 17/17 SYR4 2016–2019
Chloroform
104 µg/L
No EPA limit set
 17/17 SYR4 2016–2019
Dibromochloromethane
2.9 µg/L
No EPA limit set
 17/17 SYR4 2016–2019
Dichloroacetic Acid
42 µg/L
No EPA limit set
 17/17 SYR4 2016–2019
TTHM
118 µg/L 148%
of the EPA limit, in the worst sample — 80 µg/L
 17/17 SYR4 2016–2019
Total Haloacetic Acids (HAA5)
127 µg/L 212%
of the EPA limit, in the worst sample — 60 µg/L
 17/17 SYR4 2016–2019
Trichloroacetic Acid
83 µg/L
No EPA limit set
 17/17 SYR4 2016–2019
Monochloroacetic Acid
11 µg/L
No EPA limit set
 11/17 SYR4 2016–2019
Dibromoacetic Acid
0.5700 µg/L
No EPA limit set
 6/17 SYR4 2016–2019
Monobromoacetic Acid
0.9200 µg/L
No EPA limit set
 1/17 SYR4 2016–2019
1 contaminants tested, none detected
Bromoform

Utility contact

Contact
MINNETI, ERIC
Phone
406-594-7115
Email
eric@ncmrwa.com

Frequently asked questions about Ncmrwa Tiber Service Area

Is Ncmrwa Tiber Service Area tap water safe to drink?

EPA monitoring detected 10 contaminants in Ncmrwa Tiber Service Area'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 Ncmrwa Tiber Service Area's water?

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

How many people does Ncmrwa Tiber Service Area serve?

Ncmrwa Tiber Service Area reports serving 200 people in Montana, per its EPA record.

Has Ncmrwa Tiber Service Area had any water quality violations?

The EPA has 86 violations on file for Ncmrwa Tiber Service Area, of which 74 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.