What was found in Marion'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 | 500 µg/L 38% of the EPA limit 1300 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 800 µg/L — VILLAGE OF MARION WATER SYSTEM · 1,533 people · 2019 | 3/3 | SYR4 |
| Fluoride | 500 µg/L 13% of the EPA limit 4000 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2018
Highest in the city: 615 µg/L — LITROE WATER SYSTEM · 369 people · 2018 | 3/3 | SYR4 |
| TTHM | 340.09 µg/L 425% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 359.45 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Bromoform | 235.45 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 280.95 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 93.345 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 93.82 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 5.61 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 75.35 µg/L — VILLAGE OF MARION WATER SYSTEM · 1,533 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 59.655 µg/L 99% of the EPA limit 60 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 71.6 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 47.45 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 67 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 44 µg/L 0.4% of the EPA limit 10000 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 53 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Barium | 22.25 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2018
Highest in the city: 23.85 µg/L — LITROE WATER SYSTEM · 369 people · 2018 | 3/3 | SYR4 |
| Bromodichloromethane | 22.56 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 10.835 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019 | 3/3 | SYR4 |
| Selenium | 10 µg/L 20% of the EPA limit 50 µg/L Highest in the city: VILLAGE OF MARION WATER SYSTEM · 1,533 people · 2018 | 1/3 | SYR4 |
| Chloroform | 8.14 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 6.44 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 4.7 µg/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 5.585 µg/L — LITROE WATER SYSTEM · 369 people · 2019 | 3/3 | SYR4 |
| Lead | 2.9 µg/L 19% of the EPA limit 15 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2019
Highest in the city: 4 µg/L — VILLAGE OF MARION WATER SYSTEM · 1,533 people · 2019 | 3/3 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2018
Highest in the city: 2 µg/L — LITROE WATER SYSTEM · 369 people · 2018 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 1.42 pCi/L No EPA limit set Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2018
Highest in the city: 1.82 pCi/L — LITROE WATER SYSTEM · 369 people · 2018 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.4837 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2018 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7935 µg/L 13% of the EPA limit 6 µg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2018
Highest in the city: 0.8270 µg/L — VILLAGE OF MARION WATER SYSTEM · 1,533 people · 2018 | 3/3 | SYR4 |
| Endrin | 0.0210 µg/L 1.1% of the EPA limit 2 µg/L Highest in the city: LITROE WATER SYSTEM · 369 people · 2018 | 1/3 | SYR4 |
| Lead | 0.0024 mg/L 16% of the EPA limit 0.0150 mg/L Main supplier: LINVILLE-HAILE WATER SYSTEM · 1,635 people · 2025 | 3/3 | 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 Marion
| Supplier | Population served |
|---|---|
| LINVILLE-HAILE WATER SYSTEM | 1,635 |
| VILLAGE OF MARION WATER SYSTEM | 1,533 |
| LITROE WATER SYSTEM | 369 |
Frequently asked questions about Marion tap water
Is Marion tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Marion. 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 Marion?
3 public water suppliers report drinking-water monitoring for Marion, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Marion's water?
The contaminants EPA monitoring detected in Marion include Copper, Fluoride, TTHM, Bromoform, Dibromochloromethane. 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.