Is Duck Creek Mobile Home Park Tap Water Safe? Quality Report

Water source: Ground water
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

1,068

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2024-10-01 → 2024-12-31
MCL	Health-based	Archived	2024-10-01 → 2024-12-31
MCL	Health-based	Archived	2024-10-01 → 2024-12-31
MCL	Health-based	Archived	2024-10-01 → 2024-12-31
MCL	Health-based	Archived	2024-10-01 → 2024-12-31

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 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
Nitrate-Nitrite	8900 µg/L 89% of the EPA limit 10000 µg/L worst single sample: 9700 µg/L	126/126	SYR4	2012–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	24/24	LCR	2027
Copper	499.35 µg/L 38% of the EPA limit 1300 µg/L worst single sample: 609 µg/L	18/18	SYR4	2012–2019
TTHM	80.8 µg/L 101% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 156 µg/L	17/17	SYR4	2012–2019
Dibromochloromethane	10.73 µg/L No EPA limit set worst single sample: 15 µg/L	15/17	SYR4	2012–2019
Bromodichloromethane	20.05 µg/L No EPA limit set worst single sample: 22 µg/L	14/17	SYR4	2012–2019
Chloroform	65.3 µg/L No EPA limit set worst single sample: 117 µg/L	12/17	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	33 µg/L 55% of the EPA limit 60 µg/L worst single sample: 35 µg/L	11/11	SYR4	2012–2019
Arsenic	8 µg/L 80% of the EPA limit 10 µg/L	10/10	SYR4	2013–2019
Dibromoacetic Acid	4.88 µg/L No EPA limit set worst single sample: 5.6 µg/L	10/11	SYR4	2012–2019
Lead	8.1 µg/L 54% of the EPA limit 15 µg/L worst single sample: 9 µg/L	10/18	SYR4	2012–2019
Dichloroacetic Acid	16.6 µg/L No EPA limit set worst single sample: 17 µg/L	9/11	SYR4	2012–2019
Trichloroacetic Acid	10.6 µg/L No EPA limit set worst single sample: 11 µg/L	9/11	SYR4	2012–2019
Bromoform	2.42 µg/L No EPA limit set worst single sample: 2.6 µg/L	7/17	SYR4	2012–2019
Fluoride	1000 µg/L 25% of the EPA limit 4000 µg/L	6/6	SYR4	2013–2019
Selenium	2 µg/L 4% of the EPA limit 50 µg/L	5/6	SYR4	2013–2019
Barium	60 µg/L 3% of the EPA limit 2000 µg/L	4/6	SYR4	2013–2019
Monochloroacetic Acid	3.198 µg/L No EPA limit set worst single sample: 3.6 µg/L	4/11	SYR4	2012–2019
Combined Uranium	7.95 µg/L 27% of the EPA limit 30 µg/L worst single sample: 8 µg/L	2/2	SYR4	2012
Gross Alpha, Excl. Radon And U	0.3950 pCi/L 2.6% of the EPA limit 15 pCi/L worst single sample: 0.4000 pCi/L	2/2	SYR4	2012
Monobromoacetic Acid	0.7125 µg/L No EPA limit set worst single sample: 0.7200 µg/L	2/11	SYR4	2012–2019
Chromium	11 µg/L 11% of the EPA limit 100 µg/L	1/6	SYR4	2013–2019
Dichloromethane	0.5300 µg/L 11% of the EPA limit 5 µg/L	1/6	SYR4	2013–2019

49 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BENTSON, MARK
Phone: 406-325-6227

Frequently asked questions about Duck Creek Mobile Home Park

Is Duck Creek Mobile Home Park tap water safe to drink?

EPA monitoring detected 23 contaminants in Duck Creek Mobile Home Park'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 Duck Creek Mobile Home Park's water?

EPA monitoring detected Nitrate-Nitrite, Lead, Copper, TTHM, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Duck Creek Mobile Home Park serve?

Duck Creek Mobile Home Park reports serving 70 people in Montana, per its EPA record.

Has Duck Creek Mobile Home Park had any water quality violations?

The EPA has 1068 violations on file for Duck Creek Mobile Home Park, of which 22 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.