Is Black Eagle Cascade County Water Sewer Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Cascade

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2019-01-01 → 2019-03-31
MCL	Health-based	Resolved	2019-01-01 → 2019-03-31
MCL	Health-based	Resolved	2019-01-01 → 2019-03-31
MCL	Health-based	Resolved	2018-10-01 → 2018-12-31
MCL	Health-based	Resolved	2018-10-01 → 2018-12-31
MCL	Health-based	Resolved	2018-10-01 → 2018-12-31
MCL	Health-based	Resolved	2018-07-01 → 2018-09-30
MCL	Health-based	Resolved	2018-07-01 → 2018-09-30
MCL	Health-based	Resolved	2018-07-01 → 2018-09-30
MCL	Health-based	Resolved	2018-07-01 → 2018-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	14.5 µg/L No EPA limit set worst single sample: 15 µg/L	31/31	SYR4	2012–2019
Chloroform	54.5 µg/L No EPA limit set worst single sample: 86 µg/L	31/31	SYR4	2012–2019
Dibromochloromethane	3.05 µg/L No EPA limit set worst single sample: 3.5 µg/L	31/31	SYR4	2012–2019
TTHM	69.5 µg/L 87% of the EPA limit 80 µg/L worst single sample: 98 µg/L	31/31	SYR4	2012–2019
Copper	268 µg/L 21% of the EPA limit 1300 µg/L worst single sample: 319 µg/L	29/30	SYR4	2013–2019
Dichloroacetic Acid	28.5 µg/L No EPA limit set worst single sample: 38 µg/L	28/28	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	70.55 µg/L 118% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 84 µg/L	28/28	SYR4	2012–2019
Trichloroacetic Acid	43.9 µg/L No EPA limit set worst single sample: 51 µg/L	27/27	SYR4	2012–2019
Dibromoacetic Acid	0.5410 µg/L No EPA limit set worst single sample: 0.6400 µg/L	19/28	SYR4	2012–2019
Monochloroacetic Acid	1.86 µg/L No EPA limit set worst single sample: 2 µg/L	15/28	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	12/12	LCR	2025
Monobromoacetic Acid	1.325 µg/L No EPA limit set worst single sample: 1.4 µg/L	6/28	SYR4	2012–2019
Lead	13.4 µg/L 89% of the EPA limit 15 µg/L worst single sample: 14 µg/L	3/30	SYR4	2013–2019

1 contaminants tested, none detected

Bromoform

Utility contact

Contact: PECK, SARAH
Phone: 406-761-4408
Email: [email protected]

Frequently asked questions about Black Eagle Cascade County Water Sewer

Is Black Eagle Cascade County Water Sewer tap water safe to drink?

EPA monitoring detected 13 contaminants in Black Eagle Cascade County Water Sewer'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 Black Eagle Cascade County Water Sewer's water?

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

How many people does Black Eagle Cascade County Water Sewer serve?

Black Eagle Cascade County Water Sewer reports serving 1,233 people in Montana, per its EPA record.

Has Black Eagle Cascade County Water Sewer had any water quality violations?

The EPA has 31 violations on file for Black Eagle Cascade County Water Sewer, of which 17 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.