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Tap water quality report

Basin, WY

EPA monitoring detected 17 contaminants across the 2 water suppliers serving Basin. 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
2,150
people served
17
contaminants found
Wyoming rankings Lead in Wyoming PFAS in Wyoming

What was found in Basin'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
520 µg/L 5.2%
of the EPA limit 10000 µg/L
Highest in the city: SOUTH BIG HORN COUNTY JPB · 900 people · 2019
1/2 SYR4
Fluoride
290 µg/L 7.2%
of the EPA limit 4000 µg/L
Highest in the city: SOUTH BIG HORN COUNTY JPB · 900 people · 2019
1/2 SYR4
Copper
153.15 µg/L 12%
of the EPA limit 1300 µg/L
Main supplier: BASIN, TOWN OF · 1,250 people · 2018
2/2 SYR4
Barium
100 µg/L 5%
of the EPA limit 2000 µg/L
Highest in the city: SOUTH BIG HORN COUNTY JPB · 900 people · 2019
1/2 SYR4
Lead
14.6 µg/L 97%
of the EPA limit 15 µg/L
Main supplier: BASIN, TOWN OF · 1,250 people · 2018
2/2 SYR4
TTHM
8.77 µg/L 11%
of the EPA limit 80 µg/L
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
Highest in the city: 14.27 µg/L — SOUTH BIG HORN COUNTY JPB · 900 people · 2019
2/2 SYR4
Chloroform
3.52 µg/L
No EPA limit set
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
Highest in the city: 9.78 µg/L — SOUTH BIG HORN COUNTY JPB · 900 people · 2019
2/2 SYR4
Selenium
4.9 µg/L 9.8%
of the EPA limit 50 µg/L
Highest in the city: SOUTH BIG HORN COUNTY JPB · 900 people · 2019
1/2 SYR4
Bromodichloromethane
2.44 µg/L
No EPA limit set
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
Highest in the city: 3.67 µg/L — SOUTH BIG HORN COUNTY JPB · 900 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
1.37 µg/L 2.3%
of the EPA limit 60 µg/L
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
Highest in the city: 2.297 µg/L — SOUTH BIG HORN COUNTY JPB · 900 people · 2019
2/2 SYR4
Dichloroacetic Acid
0.9255 µg/L
No EPA limit set
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
Highest in the city: 2.1 µg/L — SOUTH BIG HORN COUNTY JPB · 900 people · 2019
2/2 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
Highest in the city: SOUTH BIG HORN COUNTY JPB · 900 people · 2019
1/2 SYR4
Dibromochloromethane
1.87 µg/L
No EPA limit set
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
2/2 SYR4
Bromoform
1.28 µg/L
No EPA limit set
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
2/2 SYR4
Thallium, Total
0.5000 µg/L 25%
of the EPA limit 2 µg/L
Highest in the city: SOUTH BIG HORN COUNTY JPB · 900 people · 2019
1/2 SYR4
Dibromoacetic Acid
0.4790 µg/L
No EPA limit set
Main supplier: BASIN, TOWN OF · 1,250 people · 2019
2/2 SYR4
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: BASIN, TOWN OF · 1,250 people · 2024
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 Basin

SupplierPopulation served
BASIN, TOWN OF 1,250
SOUTH BIG HORN COUNTY JPB 900

Frequently asked questions about Basin tap water

Is Basin tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Basin. 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 Basin?

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

What contaminants are in Basin's water?

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