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Tap water quality report

Sundance, WY

EPA monitoring detected 19 contaminants across the 2 water suppliers serving Sundance. 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.

2
water suppliers
1,399
people served
19
contaminants found
Wyoming rankings Lead in Wyoming PFAS in Wyoming

What was found in Sundance'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
Fluoride
530 µg/L 13%
of the EPA limit 4000 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
Highest in the city: 770 µg/L — VISTA WEST IMPROVEMENT & SERV DISTRICT · 120 people · 2017
2/2 SYR4
Nitrate-Nitrite
446.5 µg/L 4.5%
of the EPA limit 10000 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Copper
424.95 µg/L 33%
of the EPA limit 1300 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Barium
207 µg/L 10%
of the EPA limit 2000 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
TTHM
7.61 µg/L 9.5%
of the EPA limit 80 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Lead
7.35 µg/L 49%
of the EPA limit 15 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Arsenic
3 µg/L 30%
of the EPA limit 10 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
Highest in the city: 6.8 µg/L — VISTA WEST IMPROVEMENT & SERV DISTRICT · 120 people · 2017
2/2 SYR4
Gross Alpha, Excl. Radon And U
4.16 pCi/L 28%
of the EPA limit 15 pCi/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
Highest in the city: 4.835 pCi/L — VISTA WEST IMPROVEMENT & SERV DISTRICT · 120 people · 2019
2/2 SYR4
Chloroform
4.28 µg/L
No EPA limit set
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
2.425 µg/L 4%
of the EPA limit 60 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
Bromodichloromethane
2.38 µg/L
No EPA limit set
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Combined Uranium
1.675 µg/L 5.6%
of the EPA limit 30 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Dichloroacetic Acid
1.67 µg/L
No EPA limit set
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
Dibromochloromethane
1.2 µg/L
No EPA limit set
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
1.16 pCi/L 23%
of the EPA limit 5 pCi/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
2/2 SYR4
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
Trichloroacetic Acid
0.7980 µg/L
No EPA limit set
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
Dibromoacetic Acid
0.2700 µg/L
No EPA limit set
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2019
1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: SUNDANCE, CITY OF · 1,279 people · 2025
Highest in the city: 0.0030 mg/L — VISTA WEST IMPROVEMENT & SERV DISTRICT · 120 people · 2025
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 Sundance

SupplierPopulation served
SUNDANCE, CITY OF 1,279
VISTA WEST IMPROVEMENT & SERV DISTRICT 120

Frequently asked questions about Sundance tap water

Is Sundance tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Sundance. 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 Sundance?

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

What contaminants are in Sundance's water?

The contaminants EPA monitoring detected in Sundance include Fluoride, Nitrate-Nitrite, Copper, Barium, TTHM. 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.