What was found in Havre'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 | 4560 µg/L 351% of the EPA limit, in the worst sample — 1300 µg/L | 7/8 | SYR4 |
| Nitrate-Nitrite | 2790 µg/L 28% of the EPA limit 10000 µg/L | 4/8 | SYR4 |
| Fluoride | 2400 µg/L 60% of the EPA limit 4000 µg/L | 2/8 | SYR4 |
| Barium | 220 µg/L 11% of the EPA limit 2000 µg/L | 1/8 | SYR4 |
| Nitrate | 170 µg/L 1.7% of the EPA limit 10000 µg/L | 1/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 127 µg/L 212% of the EPA limit, in the worst sample — 60 µg/L | 7/8 | SYR4 |
| TTHM | 118 µg/L 148% of the EPA limit, in the worst sample — 80 µg/L | 8/8 | SYR4 |
| Chloroform | 104 µg/L No EPA limit set | 8/8 | SYR4 |
| Trichloroacetic Acid | 83 µg/L No EPA limit set | 7/8 | SYR4 |
| Dichloroacetic Acid | 42 µg/L No EPA limit set | 7/8 | SYR4 |
| Lead | 24 µg/L 160% of the EPA limit, in the worst sample — 15 µg/L | 7/8 | SYR4 |
| Bromodichloromethane | 23 µg/L No EPA limit set | 8/8 | SYR4 |
| Dibromochloromethane | 18 µg/L No EPA limit set | 8/8 | SYR4 |
| Lithium | 17 µg/L No EPA limit set | 1/8 | UCMR-5 |
| Selenium | 16 µg/L 32% of the EPA limit 50 µg/L | 2/8 | SYR4 |
| Monochloroacetic Acid | 11 µg/L No EPA limit set | 6/8 | SYR4 |
| Dibromoacetic Acid | 6 µg/L No EPA limit set | 7/8 | SYR4 |
| Bromoform | 5.1 µg/L No EPA limit set | 6/8 | SYR4 |
| Chromium | 5 µg/L 5% of the EPA limit 100 µg/L | 1/8 | SYR4 |
| Arsenic | 3 µg/L 30% of the EPA limit 10 µg/L | 1/8 | SYR4 |
| Combined Radium (-226 And -228) | 2.2 pCi/L 44% of the EPA limit 5 pCi/L | 1/8 | SYR4 |
| Combined Uranium | 2 µg/L 6.7% of the EPA limit 30 µg/L | 2/8 | SYR4 |
| Monobromoacetic Acid | 2 µg/L No EPA limit set | 6/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.5 pCi/L 10% of the EPA limit 15 pCi/L | 1/8 | SYR4 |
| Dichloromethane | 0.7300 µg/L 15% of the EPA limit 5 µg/L | 1/8 | SYR4 |
| Lead | 0.0110 mg/L 73% of the EPA limit 0.0150 mg/L | 7/8 | LCR |
Water suppliers serving Havre
| Supplier | Population served |
|---|---|
| HAVRE CITY OF | 9,921 |
| HILL COUNTY WATER DISTRICTS | 1,720 |
| NCMRWA TIBER SERVICE AREA | 200 |
| EAST END COLONY INC | 100 |
| NCMRWA NORTH HAVRE CWD LEG | 90 |
| NORTH HAVRE COUNTY WATER DIST | 90 |
| HILLDALE COLONY | 79 |
| HARTLAND COLONY | 73 |
Frequently asked questions about Havre tap water
Is Havre tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Havre. 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 Havre?
8 public water suppliers report drinking-water monitoring for Havre, Montana to the EPA. Each is listed above with its population served.
What contaminants are in Havre's water?
The contaminants EPA monitoring detected in Havre include Copper, Nitrate-Nitrite, Fluoride, Barium, Nitrate. 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.