What was found in Laramie's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 3230 µg/L 248% of the EPA limit, in the worst sample — 1300 µg/L | 8/8 | SYR4 |
| Nitrate-Nitrite | 3120 µg/L 31% of the EPA limit 10000 µg/L | 3/8 | SYR4 |
| Nitrate | 2400 µg/L 24% of the EPA limit 10000 µg/L | 1/8 | SYR4 |
| Fluoride | 1200 µg/L 30% of the EPA limit 4000 µg/L | 3/8 | SYR4 |
| Barium | 600 µg/L 30% of the EPA limit 2000 µg/L | 2/8 | SYR4 |
| TTHM | 64 µg/L 80% of the EPA limit 80 µg/L | 6/8 | SYR4 |
| Chloroform | 54 µg/L No EPA limit set | 6/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 52.8 µg/L 88% of the EPA limit 60 µg/L | 6/8 | SYR4 |
| Chromium | 50 µg/L 50% of the EPA limit 100 µg/L | 1/8 | SYR4 |
| Dichloroacetic Acid | 24 µg/L No EPA limit set | 6/8 | SYR4 |
| Trichloroacetic Acid | 24 µg/L No EPA limit set | 6/8 | SYR4 |
| Lead | 21 µg/L 140% of the EPA limit, in the worst sample — 15 µg/L | 7/8 | SYR4 |
| Bromodichloromethane | 11 µg/L No EPA limit set | 6/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 10.5 pCi/L 70% of the EPA limit 15 pCi/L | 3/8 | SYR4 |
| Dibromochloromethane | 7.2 µg/L No EPA limit set | 6/8 | SYR4 |
| Arsenic | 6 µg/L 60% of the EPA limit 10 µg/L | 3/8 | SYR4 |
| Bromate | 5.4 µg/L 54% of the EPA limit 10 µg/L | 1/8 | SYR4 |
| Combined Radium (-226 And -228) | 4.2 pCi/L 84% of the EPA limit 5 pCi/L | 3/8 | SYR4 |
| Combined Uranium | 2.4 µg/L 8% of the EPA limit 30 µg/L | 3/8 | SYR4 |
| Bromoform | 2.2 µg/L No EPA limit set | 3/8 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L | 3/8 | SYR4 |
| Monochloroacetic Acid | 1.9 µg/L No EPA limit set | 6/8 | SYR4 |
| Dibromoacetic Acid | 1.8 µg/L No EPA limit set | 5/8 | SYR4 |
| Monobromoacetic Acid | 0.9700 µg/L No EPA limit set | 2/8 | SYR4 |
| Thallium, Total | 0.8000 µg/L 40% of the EPA limit 2 µg/L | 1/8 | SYR4 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L | 8/8 | LCR |
Water suppliers serving Laramie
| Supplier | Population served |
|---|---|
| LARAMIE, CITY OF | 32,395 |
| SOUTH LARAMIE W&S DISTRICT | 490 |
| SUNNY MEADOWS VILLAGE | 485 |
| CV LARAMIE MHP, LLC | 375 |
| BREAZEALE'S MOBILE HOME PARK | 345 |
| NINE-MILE WATER & SEWER DISTRICT | 200 |
| SEVEN MILE WATER & SEWER DISTRICT | 130 |
| ANTELOPE RIDGE HOA | 70 |
Frequently asked questions about Laramie tap water
Is Laramie tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Laramie. 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 Laramie?
8 public water suppliers report drinking-water monitoring for Laramie, Wyoming to the EPA. Each is listed above with its population served.
What contaminants are in Laramie's water?
The contaminants EPA monitoring detected in Laramie include Copper, Nitrate-Nitrite, Nitrate, Fluoride, Barium. The full list, with the highest level found 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.