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Tap water quality report

Johnsons Mobile Home Park

EPA monitoring tested this supplier for 66 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

66
contaminants tested
7
detected
35
people served
4
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
Counties served
Lincoln

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.

4
health-based violations
63
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-02-01 → 2003-02-28
MCL Health-based Resolved 2003-02-01 → 2003-02-28
MCL Health-based Resolved 2003-02-01 → 2003-02-28
MCL Health-based Resolved 2003-02-01 → 2003-02-28
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2019-12-04
MR Monitoring Resolved 2019-12-04

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
Nitrate-Nitrite
1120 µg/L 11%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Copper
144.5 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 150 µg/L
12/15 SYR4 2013–2019
Lead
8.55 µg/L 57%
of the EPA limit 15 µg/L
worst single sample: 9 µg/L
4/15 SYR4 2013–2019
Combined Radium (-226 And -228)
1.79 pCi/L 36%
of the EPA limit 5 pCi/L
worst single sample: 1.8 pCi/L
2/2 SYR4 2016–2019
Combined Uranium
5 µg/L 17%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
Fluoride
210 µg/L 5.3%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
59 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, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOHNSON, CHRISTY D
Phone
406-291-5417
Email
[email protected]

Frequently asked questions about Johnsons Mobile Home Park

Is Johnsons Mobile Home Park tap water safe to drink?

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

EPA monitoring detected Nitrate-Nitrite, Lead, Copper, Lead, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Johnsons Mobile Home Park serve?

Johnsons Mobile Home Park reports serving 35 people in Montana, per its EPA record.

Has Johnsons Mobile Home Park had any water quality violations?

The EPA has 63 violations on file for Johnsons Mobile Home Park, of which 4 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.