Is Rawlins, WY Tap Water Safe? Quality & Contaminants

What was found in Rawlins'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
Fluoride	500 µg/L 13% of the EPA limit 4000 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Nitrate-Nitrite	186 µg/L 1.9% of the EPA limit 10000 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Copper	166.9 µg/L 13% of the EPA limit 1300 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2017	1/1	SYR4
Nitrate	160 µg/L 1.6% of the EPA limit 10000 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2012	1/1	SYR4
Barium	28 µg/L 1.4% of the EPA limit 2000 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
TTHM	23.1 µg/L 29% of the EPA limit 80 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Combined Uranium	11 µg/L 37% of the EPA limit 30 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Gross Alpha, Excl. Radon And U	9.9 pCi/L 66% of the EPA limit 15 pCi/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Selenium	9.75 µg/L 20% of the EPA limit 50 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Chloroform	9.67 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Total Haloacetic Acids (HAA5)	8.511 µg/L 14% of the EPA limit 60 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Arsenic	6.75 µg/L 68% of the EPA limit 10 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Bromodichloromethane	6.16 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Dibromochloromethane	4.72 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Dichloroacetic Acid	4.65 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Trichloroacetic Acid	3.39 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Lead	2.9 µg/L 19% of the EPA limit 15 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2017	1/1	SYR4
Chromium	2 µg/L 2% of the EPA limit 100 µg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Dibromoacetic Acid	1.45 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Bromoform	0.8690 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Monochloroacetic Acid	0.7800 µg/L No EPA limit set Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Combined Radium (-226 And -228)	0.6000 pCi/L 12% of the EPA limit 5 pCi/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2019	1/1	SYR4
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: RAWLINS WATER SUPPLY, CITY OF · 9,006 people · 2023	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 Rawlins

Supplier	Population served
RAWLINS WATER SUPPLY, CITY OF	9,006

Frequently asked questions about Rawlins tap water

Is Rawlins tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Rawlins. 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 Rawlins?

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

What contaminants are in Rawlins's water?

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