What was found in Marmarth'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 | 330 µg/L 8.3% of the EPA limit 4000 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2016 | 1/1 | SYR4 |
| Nitrate-Nitrite | 220 µg/L 2.2% of the EPA limit 10000 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2019 | 1/1 | SYR4 |
| Copper | 133.2 µg/L 10% of the EPA limit 1300 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2019 | 1/1 | SYR4 |
| TTHM | 35.866 µg/L 45% of the EPA limit 80 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Chloroform | 19.51 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Barium | 13.8 µg/L 0.7% of the EPA limit 2000 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2016 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.46 µg/L 19% of the EPA limit 60 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Bromodichloromethane | 10.004 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Dibromochloromethane | 5.751 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Dichloroacetic Acid | 5.15 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Trichloroacetic Acid | 4.055 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.3225 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.27 pCi/L 15% of the EPA limit 15 pCi/L Main supplier: MARMARTH CITY OF · 136 people · 2019 | 1/1 | SYR4 |
| Lead | 1.373 µg/L 9.2% of the EPA limit 15 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2019 | 1/1 | SYR4 |
| Dalapon | 1.06 µg/L 0.5% of the EPA limit 200 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Bromoform | 0.6850 µg/L No EPA limit set Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Combined Uranium | 0.2387 µg/L 0.8% of the EPA limit 30 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2019 | 1/1 | SYR4 |
| Pentachlorophenol | 0.0300 µg/L 3% of the EPA limit 1 µg/L Main supplier: MARMARTH CITY OF · 136 people · 2017 | 1/1 | SYR4 |
| Lead | 0.0065 mg/L 43% of the EPA limit 0.0150 mg/L Main supplier: MARMARTH CITY OF · 136 people · 2025 | 1/1 | LCR |
Water suppliers serving Marmarth
| Supplier | Population served |
|---|---|
| MARMARTH CITY OF | 136 |
Frequently asked questions about Marmarth tap water
Is Marmarth tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Marmarth. 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 Marmarth?
1 public water supplier report drinking-water monitoring for Marmarth, North Dakota to the EPA. Each is listed above with its population served.
What contaminants are in Marmarth's water?
The contaminants EPA monitoring detected in Marmarth 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.