Is Thayne, WY Tap Water Safe? Quality & Contaminants

What was found in Thayne'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	626 µg/L 6.3% of the EPA limit 10000 µg/L Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2019 Highest in the city: 1691 µg/L — THAYNE, TOWN OF · 366 people · 2019	3/5	SYR4
Nitrate	500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: STAR VALLEY RANCH, TOWN OF · 2,030 people · 2012 Highest in the city: 1600 µg/L — THAYNE, TOWN OF · 366 people · 2012	2/5	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 Highest in the city: 222 µg/L — THAYNE, TOWN OF · 366 people · 2017	3/5	SYR4
Fluoride	100 µg/L 2.5% of the EPA limit 4000 µg/L Highest in the city: THAYNE, TOWN OF · 366 people · 2019	1/5	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 Highest in the city: 15.1 µg/L — LEISURE VALLEY INC/ STAR VALLEY RV PARK · 1,910 people · 2018	3/5	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 Highest in the city: 6.13 pCi/L — THAYNE, TOWN OF · 366 people · 2018	3/5	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	1/5	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 Highest in the city: 1.96 pCi/L — THAYNE, TOWN OF · 366 people · 2018	3/5	SYR4
Combined Uranium	0.7900 µg/L 2.6% of the EPA limit 30 µg/L Highest in the city: THAYNE, TOWN OF · 366 people · 2018	2/5	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	5/5	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 Thayne

Supplier	Population served
STAR VALLEY RANCH, TOWN OF	2,030
LEISURE VALLEY INC/ STAR VALLEY RV PARK	1,910
THAYNE, TOWN OF	366
CEDAR SPRINGS MEADOWS	19
NORTH FORTY SUBDIVISION	15

Frequently asked questions about Thayne tap water

Is Thayne tap water safe to drink?

EPA testing detected 10 contaminants in the water serving Thayne. 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 Thayne?

5 public water suppliers report drinking-water monitoring for Thayne, Wyoming to the EPA. Each is listed above with its population served.

What contaminants are in Thayne's water?

The contaminants EPA monitoring detected in Thayne include Nitrate-Nitrite, Nitrate, Copper, Fluoride, 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.