What was found in Mermentau'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 |
|---|---|---|---|
| Copper | 980 µg/L 75% of the EPA limit 1300 µg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2018 | 1/1 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2018 | 1/1 | SYR4 |
| Monochloroacetic Acid | 97 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| TTHM | 77.13 µg/L 96% of the EPA limit 80 µg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 51.985 µg/L 87% of the EPA limit 60 µg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 44 µg/L 0.4% of the EPA limit 10000 µg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 28.945 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 23.9 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Chloroform | 16.01 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Bromoform | 11.48 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Lead | 11.3 µg/L 75% of the EPA limit 15 µg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.37 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 7.17 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 7 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.746 µg/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 1.62 pCi/L No EPA limit set Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2018 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.09 pCi/L 22% of the EPA limit 5 pCi/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: VILLAGE OF MERMENTAU WATER SYSTEM · 780 people · 2023 | 1/1 | LCR |
Water suppliers serving Mermentau
| Supplier | Population served |
|---|---|
| VILLAGE OF MERMENTAU WATER SYSTEM | 780 |
Frequently asked questions about Mermentau tap water
Is Mermentau tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Mermentau. 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 Mermentau?
1 public water supplier report drinking-water monitoring for Mermentau, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Mermentau's water?
The contaminants EPA monitoring detected in Mermentau include Copper, Fluoride, Monochloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5). 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.