What was found in ZIP 70757
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 350 µg/L 8.8% of the EPA limit 4000 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2018
Highest in the ZIP: 685 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2017 | 2/2 | SYR4 |
| Nitrate-Nitrite | 41 µg/L 0.4% of the EPA limit 10000 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 200 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Copper | 4.2185 µg/L 0.3% of the EPA limit 1300 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2018
Highest in the ZIP: 100 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| TTHM | 45.925 µg/L 57% of the EPA limit 80 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 73.945 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Chloroform | 36.96 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 68.8 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24.76 µg/L 41% of the EPA limit 60 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 48.68 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 17.22 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 28.52 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 6.115 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 20.32 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Barium | 11 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2018 | 1/2 | SYR4 |
| Lithium | 10.9 µg/L No EPA limit set Highest in the ZIP: NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2025 | 1/2 | UCMR-5 |
| Bromodichloromethane | 8.3 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 7.01 µg/L 117% of the EPA limit, at the 95th percentile of samples — 6 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2018 | 2/2 | SYR4 |
| Dalapon | 5.291 µg/L 2.6% of the EPA limit 200 µg/L Highest in the ZIP: NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2017 | 1/2 | SYR4 |
| Lead | 4.65 µg/L 31% of the EPA limit 15 µg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2018 | 2/2 | SYR4 |
| Monochloroacetic Acid | 0.9890 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019
Highest in the ZIP: 2.8 µg/L — NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 2.255 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.29 µg/L No EPA limit set Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.7160 pCi/L 14% of the EPA limit 5 pCi/L Highest in the ZIP: NORTH IBERVILLE WATER SYSTEM · 1,524 people · 2017 | 1/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF MARINGOUIN · 3,300 people · 2023 | 2/2 | 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.
Water suppliers serving ZIP 70757
| Supplier | State | Population served |
|---|---|---|
| TOWN OF MARINGOUIN | LA | 3,300 |
| NORTH IBERVILLE WATER SYSTEM | LA | 1,524 |
Frequently asked questions about ZIP 70757 tap water
Is the tap water in ZIP 70757 safe to drink?
EPA testing detected 19 contaminants across the water suppliers serving ZIP 70757. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 70757?
2 public water suppliers report EPA drinking-water monitoring for ZIP 70757. Each is listed above with its population served.
What contaminants are in ZIP 70757's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Copper, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.