What was found in Plain Dealing'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 | 2485 µg/L 62% of the EPA limit 4000 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Copper | 905 µg/L 70% of the EPA limit 1300 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| TTHM | 371.68 µg/L 465% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Bromoform | 322 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Barium | 110 µg/L 5.5% of the EPA limit 2000 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019
Highest in the city: 150 µg/L — ST MARYS WATER SYSTEM · 294 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 117.15 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 89.8 µg/L 150% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 67.25 µg/L 0.7% of the EPA limit 10000 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 64.25 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 55.35 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Nitrate | 47 µg/L 0.5% of the EPA limit 10000 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2017 | 1/2 | SYR4 |
| Lead | 26.7 µg/L 178% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 14.48 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019
Highest in the city: 24.205 µg/L — ST MARYS WATER SYSTEM · 294 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 5.12 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019
Highest in the city: 10.4 µg/L — ST MARYS WATER SYSTEM · 294 people · 2019 | 2/2 | SYR4 |
| Chloroform | 5.35 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019
Highest in the city: 9.935 µg/L — ST MARYS WATER SYSTEM · 294 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 8.28 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 5.41 µg/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.11 µg/L 19% of the EPA limit 6 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019
Highest in the city: 4.497 µg/L — ST MARYS WATER SYSTEM · 294 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 3.9 pCi/L No EPA limit set Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Cyanide | 3.1 µg/L 1.6% of the EPA limit 200 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 1/2 | SYR4 |
| Arsenic | 2.8 µg/L 28% of the EPA limit 10 µg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 2.036 pCi/L 41% of the EPA limit 5 pCi/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF PLAIN DEALING WATER SYSTEM · 2,346 people · 2023
Highest in the city: 0.0030 mg/L — ST MARYS WATER SYSTEM · 294 people · 2024 | 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.
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 Plain Dealing
| Supplier | Population served |
|---|---|
| TOWN OF PLAIN DEALING WATER SYSTEM | 2,346 |
| ST MARYS WATER SYSTEM | 294 |
Frequently asked questions about Plain Dealing tap water
Is Plain Dealing tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Plain Dealing. 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 Plain Dealing?
2 public water suppliers report drinking-water monitoring for Plain Dealing, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Plain Dealing's water?
The contaminants EPA monitoring detected in Plain Dealing include Fluoride, Copper, TTHM, Bromoform, Barium. 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.