Is Pache Water Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Native American

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	Archived	2002-04-01 → 2002-04-30
MCL	Health-based	Archived	2002-03-01 → 2002-03-31
MCL	Health-based	Archived	2002-02-01 → 2002-02-28
MCL	Health-based	Archived	2002-01-01 → 2002-01-31
MCL	Health-based	Archived	2000-12-01 → 2000-12-31
MCL	Health-based	Archived	1999-09-01 → 1999-09-30
MCL	Health-based	Archived	1994-02-01 → 1994-02-28
MCL	Health-based	Archived	1994-01-01 → 1994-01-31
MCL	Health-based	Archived	1993-07-01 → 1993-07-31
MCL	Health-based	Archived	1993-07-01 → 1993-07-31

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	1064 µg/L 11% of the EPA limit 10000 µg/L worst single sample: 1080 µg/L	9/9	SYR4	2012–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	7/7	LCR	2023
Nitrate	880 µg/L 8.8% of the EPA limit 10000 µg/L	6/6	SYR4	2017–2018
Copper	78 µg/L 6% of the EPA limit 1300 µg/L worst single sample: 80 µg/L	5/6	SYR4	2017
Lead	1.95 µg/L 13% of the EPA limit 15 µg/L worst single sample: 2 µg/L	2/6	SYR4	2017
Barium	90 µg/L 4.5% of the EPA limit 2000 µg/L	1/1	SYR4	2018
Fluoride	30 µg/L 0.8% of the EPA limit 4000 µg/L	1/1	SYR4	2018

68 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: PHILLIPS, REBECCA
Phone: 406-675-4491
Email: [email protected]

Frequently asked questions about Pache Water

Is Pache Water tap water safe to drink?

EPA monitoring detected 7 contaminants in Pache Water'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 Pache Water's water?

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

How many people does Pache Water serve?

Pache Water reports serving 276 people in Montana, per its EPA record.

Has Pache Water had any water quality violations?

The EPA has 13 violations on file for Pache Water, of which 10 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.