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Tap water quality report

Star Valley Ranch, WY

EPA monitoring detected 8 contaminants across the 1 water supplier serving Star Valley Ranch. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
2,030
people served
8
contaminants found
Wyoming rankings Lead in Wyoming PFAS in Wyoming

What was found in Star Valley Ranch'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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
626 µg/L 6.3%
of the EPA limit 10000 µg/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2019
1/1 SYR4
Nitrate
500 µg/L 5%
of the EPA limit 10000 µg/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2012
1/1 SYR4
Copper
133.5 µg/L 10%
of the EPA limit 1300 µg/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2017
1/1 SYR4
Gross Alpha, Excl. Radon And U
5.3 pCi/L 35%
of the EPA limit 15 pCi/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2014
1/1 SYR4
Lead
4.35 µg/L 29%
of the EPA limit 15 µg/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2017
1/1 SYR4
Di(2-ethylhexyl) Phthalate
3.3 µg/L 55%
of the EPA limit 6 µg/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.655 pCi/L 33%
of the EPA limit 5 pCi/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2014
1/1 SYR4
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2025
1/1 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 Star Valley Ranch

SupplierPopulation served
STAR VALLEY RANCH, TOWN OF 2,030

Frequently asked questions about Star Valley Ranch tap water

Is Star Valley Ranch tap water safe to drink?

EPA testing detected 8 contaminants in the water serving Star Valley Ranch. 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 Star Valley Ranch?

1 public water supplier report drinking-water monitoring for Star Valley Ranch, Wyoming to the EPA. Each is listed above with its population served.

What contaminants are in Star Valley Ranch's water?

The contaminants EPA monitoring detected in Star Valley Ranch include Nitrate-Nitrite, Nitrate, Copper, Gross Alpha, Excl. Radon And U, Lead. 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.