Is Cherry Creek Estates Llc Tap Water Safe? Quality Report

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
Other	Monitoring	Unaddressed	2025-10-01
MR	Monitoring	Resolved	2025-10-01 → 2025-12-31
MR	Monitoring	Resolved	2025-10-01 → 2025-12-31
MR	Monitoring	Resolved	2025-10-01 → 2025-12-31
MR	Monitoring	Resolved	2025-10-01 → 2025-12-31
MR	Monitoring	Resolved	2025-10-01 → 2025-12-31
MR	Monitoring	Resolved	2025-10-01 → 2025-12-31
MR	Monitoring	Resolved	2025-01-01 → 2025-03-31
MR	Monitoring	Resolved	2025-01-01 → 2025-03-31
MR	Monitoring	Resolved	2025-01-01 → 2025-03-31

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 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	9.955 µg/L No EPA limit set worst single sample: 13 µg/L	24/24	SYR4	2012–2019
Chloroform	52 µg/L No EPA limit set	24/24	SYR4	2012–2019
Dichloroacetic Acid	25.25 µg/L No EPA limit set worst single sample: 33 µg/L	24/24	SYR4	2012–2019
TTHM	59.85 µg/L 75% of the EPA limit 80 µg/L worst single sample: 65 µg/L	24/24	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	59.55 µg/L 99% of the EPA limit 60 µg/L worst single sample: 69 µg/L	24/24	SYR4	2012–2019
Trichloroacetic Acid	32.85 µg/L No EPA limit set worst single sample: 35 µg/L	24/24	SYR4	2012–2019
Dibromochloromethane	2.7 µg/L No EPA limit set	19/24	SYR4	2012–2019
Dibromoacetic Acid	0.6495 µg/L No EPA limit set worst single sample: 0.7600 µg/L	14/24	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	14/14	LCR	2026
Monochloroacetic Acid	4.915 µg/L No EPA limit set worst single sample: 5.3 µg/L	12/24	SYR4	2012–2019
Copper	111.3 µg/L 8.6% of the EPA limit 1300 µg/L worst single sample: 123 µg/L	10/10	SYR4	2014–2017
Monobromoacetic Acid	0.8135 µg/L No EPA limit set worst single sample: 0.8300 µg/L	4/24	SYR4	2012–2019
Lead	3 µg/L 20% of the EPA limit 15 µg/L	1/10	SYR4	2014–2017

1 contaminants tested, none detected

Bromoform

Utility contact

Contact: RUDOLPH, AMANDA
Phone: 406-254-2555

Frequently asked questions about Cherry Creek Estates Llc

Is Cherry Creek Estates Llc tap water safe to drink?

EPA monitoring detected 13 contaminants in Cherry Creek Estates Llc'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 Cherry Creek Estates Llc's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Cherry Creek Estates Llc serve?

Cherry Creek Estates Llc reports serving 600 people in Montana, per its EPA record.

Has Cherry Creek Estates Llc had any water quality violations?

The EPA has 68 violations on file for Cherry Creek Estates Llc, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.