Is Stockett, MT Tap Water Safe? Quality & Contaminants

What was found in Stockett's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate-Nitrite	2386.5 µg/L 24% of the EPA limit 10000 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2019	2/2	SYR4
Fluoride	1160 µg/L 29% of the EPA limit 4000 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2017	2/2	SYR4
Copper	175.6 µg/L 14% of the EPA limit 1300 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018 Highest in the city: 251.5 µg/L — HILLTOP COLONY · 100 people · 2018	2/2	SYR4
Barium	100 µg/L 5% of the EPA limit 2000 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2017	2/2	SYR4
Selenium	12 µg/L 24% of the EPA limit 50 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2017	2/2	SYR4
Gross Alpha, Excl. Radon And U	10.63 pCi/L 71% of the EPA limit 15 pCi/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2017	2/2	SYR4
Lead	3.7 µg/L 25% of the EPA limit 15 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018 Highest in the city: 10.2 µg/L — HILLTOP COLONY · 100 people · 2018	2/2	SYR4
Combined Uranium	7.75 µg/L 26% of the EPA limit 30 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2017	2/2	SYR4
TTHM	7.665 µg/L 9.6% of the EPA limit 80 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Dibromochloromethane	3.455 µg/L No EPA limit set Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Combined Radium (-226 And -228)	2.72 pCi/L 54% of the EPA limit 5 pCi/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2017 Highest in the city: 3 pCi/L — HILLTOP COLONY · 100 people · 2017	2/2	SYR4
Total Haloacetic Acids (HAA5)	2.09 µg/L 3.5% of the EPA limit 60 µg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Dibromoacetic Acid	1.98 µg/L No EPA limit set Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Bromodichloromethane	1.84 µg/L No EPA limit set Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Bromoform	1.755 µg/L No EPA limit set Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Toluene	1.1 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: HILLTOP COLONY · 100 people · 2019	1/2	SYR4
Xylenes, Total	1.05 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: HILLTOP COLONY · 100 people · 2019	1/2	SYR4
Chloroform	0.8215 µg/L No EPA limit set Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2018	1/2	SYR4
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: STOCKETT WATER AND SEWER DIST · 210 people · 2025 Highest in the city: 0.0100 mg/L — HILLTOP COLONY · 100 people · 2023	2/2	LCR

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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Stockett

Supplier	Population served
STOCKETT WATER AND SEWER DIST	210
HILLTOP COLONY	100

Frequently asked questions about Stockett tap water

Is Stockett tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Stockett. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Stockett?

2 public water suppliers report drinking-water monitoring for Stockett, Montana to the EPA. Each is listed above with its population served.

What contaminants are in Stockett's water?

The contaminants EPA monitoring detected in Stockett include Nitrate-Nitrite, Fluoride, Copper, Barium, Selenium. The full list, with the level at the main supplier and the data source, is in the table above.

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.