What was found in Glendive'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 | 400 µg/L 10% of the EPA limit 4000 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 4420 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 8/9 | SYR4 |
| Nitrate-Nitrite | 400 µg/L 4% of the EPA limit 10000 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 3821 µg/L — I 94 MOBILE HOME PARK · 90 people · 2019 | 8/9 | SYR4 |
| Copper | 70.4 µg/L 5.4% of the EPA limit 1300 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 703.25 µg/L — HIGHLAND PARK UTILITIES ASSN · 500 people · 2017 | 8/9 | SYR4 |
| TTHM | 72.4 µg/L 91% of the EPA limit 80 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 101.4 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Chloroform | 52.4 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 55.67 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Total Haloacetic Acids (HAA5) | 42.05 µg/L 70% of the EPA limit 60 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 49.6 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Barium | 44.26 µg/L 2.2% of the EPA limit 2000 µg/L Highest in the city: CASITAS DEL MESA MHP · 180 people · 2019 | 1/9 | SYR4 |
| Lithium | 38 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2025 | 1/9 | UCMR-5 |
| Bromodichloromethane | 15 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 31.4 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Dichloroacetic Acid | 24.1 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 28.04 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Gross Alpha, Excl. Radon And U | 21 pCi/L 140% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Highest in the city: WHISPERING TREES MOBILE PARK · 100 people · 2019 | 6/9 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 21 µg/L — I 94 MOBILE HOME PARK · 90 people · 2019 | 2/9 | SYR4 |
| Trichloroacetic Acid | 20 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019 | 5/9 | SYR4 |
| Lead | 10 µg/L 67% of the EPA limit 15 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 18.7 µg/L — RAINBOW ESTATES · 30 people · 2018 | 8/9 | SYR4 |
| Dibromochloromethane | 4.7 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 16.015 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Combined Uranium | 11.6 µg/L 39% of the EPA limit 30 µg/L Highest in the city: I 94 MOBILE HOME PARK · 90 people · 2016 | 4/9 | SYR4 |
| Chromium | 7 µg/L 7% of the EPA limit 100 µg/L Highest in the city: RAINBOW ESTATES · 30 people · 2019 | 2/9 | SYR4 |
| Dibromoacetic Acid | 1.1 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 5.52 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 5/9 | SYR4 |
| Monochloroacetic Acid | 5.3 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019 | 2/9 | SYR4 |
| Bromoform | 0.6200 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 4.14 µg/L — HIGHLAND PARK UTILITIES ASSN · 500 people · 2019 | 4/9 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2019
Highest in the city: 2.85 µg/L — WHISPERING TREES MOBILE PARK · 100 people · 2019 | 4/9 | SYR4 |
| Combined Radium (-226 And -228) | 2.1 pCi/L 42% of the EPA limit 5 pCi/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2016 | 4/9 | SYR4 |
| Oxamyl | 1.7 µg/L 0.9% of the EPA limit 200 µg/L Highest in the city: WHISPERING TREES MOBILE PARK · 100 people · 2019 | 1/9 | SYR4 |
| Monobromoacetic Acid | 0.9955 µg/L No EPA limit set Main supplier: GLENDIVE CITY OF · 4,873 people · 2019 | 5/9 | SYR4 |
| Cadmium | 0.7800 µg/L 16% of the EPA limit 5 µg/L Highest in the city: CASITAS DEL MESA MHP · 180 people · 2019 | 1/9 | SYR4 |
| Asbestos | 0.1700 MFL 2.4% of the EPA limit 7 MFL Highest in the city: HIGHLAND PARK UTILITIES ASSN · 500 people · 2013 | 1/9 | SYR4 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: GLENDIVE CITY OF · 4,873 people · 2025 | 9/9 | 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 Glendive
| Supplier | Population served |
|---|---|
| GLENDIVE CITY OF | 4,873 |
| FOREST PARK WATER RSID 24 | 1,200 |
| HIGHLAND PARK UTILITIES ASSN | 500 |
| CASITAS DEL RIO | 216 |
| CASITAS DEL MESA MHP | 180 |
| WHISPERING TREES MOBILE PARK | 100 |
| I 94 MOBILE HOME PARK | 90 |
| PINNACLE ESTATES OF GLENDIVE | 50 |
| RAINBOW ESTATES | 30 |
Frequently asked questions about Glendive tap water
Is Glendive tap water safe to drink?
EPA testing detected 27 contaminants in the water serving Glendive. 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 Glendive?
9 public water suppliers report drinking-water monitoring for Glendive, Montana to the EPA. Each is listed above with its population served.
What contaminants are in Glendive's water?
The contaminants EPA monitoring detected in Glendive include Fluoride, Nitrate-Nitrite, Copper, TTHM, Chloroform. 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.