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Tap water quality report

Buffalo, WY

EPA monitoring detected 21 contaminants across the 3 water suppliers serving Buffalo. 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.

3
water suppliers
4,598
people served
21
contaminants found
Wyoming rankings Lead in Wyoming PFAS in Wyoming

What was found in Buffalo'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
500 µg/L 13%
of the EPA limit 4000 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2017
2/3 SYR4
Barium
270 µg/L 14%
of the EPA limit 2000 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2017
1/3 SYR4
Nitrate-Nitrite
200 µg/L 2%
of the EPA limit 10000 µg/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2019
2/3 SYR4
Copper
90 µg/L 6.9%
of the EPA limit 1300 µg/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2018
Highest in the city: 167.5 µg/L — BIGHORN MOUNTAIN CAMPGROUND · 29 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
62.2 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2019
1/3 SYR4
TTHM
53.15 µg/L 66%
of the EPA limit 80 µg/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2019
1/3 SYR4
Chloroform
49.7 µg/L
No EPA limit set
Main supplier: BUFFALO, CITY OF · 4,419 people · 2016
1/3 SYR4
Trichloroacetic Acid
39.85 µg/L
No EPA limit set
Main supplier: BUFFALO, CITY OF · 4,419 people · 2016
1/3 SYR4
Dichloroacetic Acid
22 µg/L
No EPA limit set
Main supplier: BUFFALO, CITY OF · 4,419 people · 2016
1/3 SYR4
Lead
15.5 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2018
3/3 SYR4
Arsenic
8 µg/L 80%
of the EPA limit 10 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2017
1/3 SYR4
Cyanide
6 µg/L 3%
of the EPA limit 200 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2017
1/3 SYR4
Chromium
6 µg/L 6%
of the EPA limit 100 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2017
1/3 SYR4
Monochloroacetic Acid
4.8 µg/L
No EPA limit set
Main supplier: BUFFALO, CITY OF · 4,419 people · 2016
1/3 SYR4
Gross Alpha, Excl. Radon And U
4.465 pCi/L 30%
of the EPA limit 15 pCi/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2019
2/3 SYR4
Selenium
3 µg/L 6%
of the EPA limit 50 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2017
1/3 SYR4
Bromodichloromethane
2.3 µg/L
No EPA limit set
Main supplier: BUFFALO, CITY OF · 4,419 people · 2016
1/3 SYR4
Combined Uranium
1.1 µg/L 3.7%
of the EPA limit 30 µg/L
Highest in the city: BALD MOUNTAIN TRAILER COURT · 150 people · 2019
1/3 SYR4
Combined Radium (-226 And -228)
1 pCi/L 20%
of the EPA limit 5 pCi/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2014
3/3 SYR4
Dibromoacetic Acid
0.2800 µg/L
No EPA limit set
Main supplier: BUFFALO, CITY OF · 4,419 people · 2016
1/3 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: BUFFALO, CITY OF · 4,419 people · 2024
3/3 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 Buffalo

SupplierPopulation served
BUFFALO, CITY OF 4,419
BALD MOUNTAIN TRAILER COURT 150
BIGHORN MOUNTAIN CAMPGROUND 29

Frequently asked questions about Buffalo tap water

Is Buffalo tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Buffalo. 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 Buffalo?

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

What contaminants are in Buffalo's water?

The contaminants EPA monitoring detected in Buffalo include Fluoride, Barium, Nitrate-Nitrite, Copper, Total Haloacetic Acids (HAA5). 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.