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Tap water quality report

Star Mobile Home Park

EPA monitoring tested this supplier for 67 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

67
contaminants tested
7
detected
190
people served
9
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Gallatin

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.

9
health-based violations
68
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2002-03-01 → 2002-03-31
MCL Health-based Resolved 2002-03-01 → 2002-03-31
MCL Health-based Resolved 2002-03-01 → 2002-03-31
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 1996-07-01 → 1996-07-31
Other Monitoring Resolved 2017-07-01

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
247 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 514 µg/L
36/47 SYR4 2012–2018
Nitrate-Nitrite
3610 µg/L 36%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Lead
0.0026 mg/L 17%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Lead
6.2 µg/L 41%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
13/47 SYR4 2012–2018
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/3 SYR4 2013–2019
Barium
140 µg/L 7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Combined Uranium
1 µg/L 3.3%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
60 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneFluorideGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MILLER, BRENT B
Phone
406-586-0588

Frequently asked questions about Star Mobile Home Park

Is Star Mobile Home Park tap water safe to drink?

EPA monitoring detected 7 contaminants in Star 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 Star Mobile Home Park's water?

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

How many people does Star Mobile Home Park serve?

Star Mobile Home Park reports serving 190 people in Montana, per its EPA record.

Has Star Mobile Home Park had any water quality violations?

The EPA has 68 violations on file for Star Mobile Home Park, of which 9 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.