What was found in Port Allen'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 | 294 µg/L 7.4% of the EPA limit 4000 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 296 µg/L — WBR DISTRICT 4 -SECTION ROAD WINTERVILLE · 5,571 people · 2019 | 4/5 | SYR4 |
| Copper | 100 µg/L 7.7% of the EPA limit 1300 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 200 µg/L — WBR DISTRICT 4 -SECTION ROAD WINTERVILLE · 5,571 people · 2019 | 5/5 | SYR4 |
| TTHM | 42.28 µg/L 53% of the EPA limit 80 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 5/5 | SYR4 |
| Bromoform | 20.68 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 4/5 | SYR4 |
| Lithium | 9.9 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2025
Highest in the city: 17.8 µg/L — WBR PUBLIC UTILITIES · 4,329 people · 2023 | 4/5 | UCMR-5 |
| Lead | 3 µg/L 20% of the EPA limit 15 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 16.9 µg/L — WBR DISTRICT 4 -SECTION ROAD WINTERVILLE · 5,571 people · 2019 | 5/5 | SYR4 |
| Barium | 14.665 µg/L 0.7% of the EPA limit 2000 µg/L Highest in the city: WBR DISTRICT 4 -SECTION ROAD WINTERVILLE · 5,571 people · 2019 | 1/5 | SYR4 |
| Dibromochloromethane | 14.62 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.06 µg/L 18% of the EPA limit 60 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 5/5 | SYR4 |
| Chloroform | 5.46 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 9.44 µg/L — WBR DISTRICT 4 - ARBROTH · 555 people · 2019 | 5/5 | SYR4 |
| Bromodichloromethane | 7.12 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 5/5 | SYR4 |
| Monochloroacetic Acid | 6.81 µg/L No EPA limit set Highest in the city: CITY OF PORT ALLEN WATER SYSTEM · 6,759 people · 2019 | 2/5 | SYR4 |
| Dibromoacetic Acid | 6.36 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 5/5 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.5000 µg/L 8.3% of the EPA limit 6 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 4.66 µg/L — CITY OF PORT ALLEN WATER SYSTEM · 6,759 people · 2017 | 4/5 | SYR4 |
| Dichloroacetic Acid | 3.765 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 4.215 µg/L — WBR DISTRICT 4 - ARBROTH · 555 people · 2019 | 5/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.31 pCi/L 15% of the EPA limit 15 pCi/L Highest in the city: WBR PUBLIC UTILITIES · 4,329 people · 2016 | 1/5 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 2.24 µg/L — WBR PUBLIC UTILITIES · 4,329 people · 2019 | 3/5 | SYR4 |
| Trichloroacetic Acid | 1.6 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019
Highest in the city: 1.735 µg/L — CITY OF PORT ALLEN WATER SYSTEM · 6,759 people · 2019 | 5/5 | SYR4 |
| Gross Beta Particle Activity | 1.674 pCi/L No EPA limit set Highest in the city: WBR PUBLIC UTILITIES · 4,329 people · 2019 | 1/5 | SYR4 |
| Combined Radium (-226 And -228) | 1.49085 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: CITY OF PORT ALLEN WATER SYSTEM · 6,759 people · 2017 | 3/5 | SYR4 |
| Monobromoacetic Acid | 1.0965 µg/L No EPA limit set Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 1/5 | SYR4 |
| Hexachlorobenzene | 0.1260 µg/L 13% of the EPA limit 1 µg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2019 | 2/5 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: WEST BATON ROUGE WATER WORKS DISTRICT 2 · 13,437 people · 2023 | 5/5 | 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 Port Allen
| Supplier | Population served |
|---|---|
| WEST BATON ROUGE WATER WORKS DISTRICT 2 | 13,437 |
| CITY OF PORT ALLEN WATER SYSTEM | 6,759 |
| WBR DISTRICT 4 -SECTION ROAD WINTERVILLE | 5,571 |
| WBR PUBLIC UTILITIES | 4,329 |
| WBR DISTRICT 4 - ARBROTH | 555 |
Frequently asked questions about Port Allen tap water
Is Port Allen tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Port Allen. 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 Port Allen?
5 public water suppliers report drinking-water monitoring for Port Allen, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Port Allen's water?
The contaminants EPA monitoring detected in Port Allen include Fluoride, Copper, TTHM, Bromoform, Lithium. 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.