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Tap water quality report

Ncmrwa Shelby to Ethridge

EPA monitoring tested this supplier for 14 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
11
detected
70
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
GWP
Ownership
Private
Counties served
Toole

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
3
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2017-11-01 → 2017-11-30
MON Monitoring Resolved 2017-11-01 → 2017-11-30
MON Monitoring Resolved 2017-11-01 → 2017-11-30

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
606.8 µg/L 47%
of the EPA limit 1300 µg/L
worst single sample: 640 µg/L
9/10 SYR4 2018
Bromodichloromethane
5.2 µg/L
No EPA limit set
 1/1 SYR4 2017
Chloroform
4.5 µg/L
No EPA limit set
 1/1 SYR4 2017
Dibromoacetic Acid
0.5600 µg/L
No EPA limit set
 1/1 SYR4 2017
Dibromochloromethane
2.7 µg/L
No EPA limit set
 1/1 SYR4 2017
Dichloroacetic Acid
3.9 µg/L
No EPA limit set
 1/1 SYR4 2017
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 1/1 LCR 2018
Lead
3 µg/L 20%
of the EPA limit 15 µg/L
 1/10 SYR4 2018
TTHM
13 µg/L 16%
of the EPA limit 80 µg/L
 1/1 SYR4 2017
Total Haloacetic Acids (HAA5)
6.6 µg/L 11%
of the EPA limit 60 µg/L
 1/1 SYR4 2017
Trichloroacetic Acid
2.1 µg/L
No EPA limit set
 1/1 SYR4 2017
3 contaminants tested, none detected
BromoformMonobromoacetic AcidMonochloroacetic Acid

Utility contact

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

Frequently asked questions about Ncmrwa Shelby to Ethridge

Is Ncmrwa Shelby to Ethridge tap water safe to drink?

EPA monitoring detected 11 contaminants in Ncmrwa Shelby to Ethridge'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 Shelby to Ethridge's water?

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

How many people does Ncmrwa Shelby to Ethridge serve?

Ncmrwa Shelby to Ethridge reports serving 70 people in Montana, per its EPA record.

Has Ncmrwa Shelby to Ethridge had any water quality violations?

The EPA has 3 violations on file for Ncmrwa Shelby to Ethridge, 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.