What was found in Port Barre'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 | 415 µg/L 32% of the EPA limit 1300 µg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 600 µg/L — ST LANDRY WWD 3 PORT BARRE AREA C · 351 people · 2019 | 5/5 | SYR4 |
| Fluoride | 256 µg/L 6.4% of the EPA limit 4000 µg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2017 | 1/5 | SYR4 |
| TTHM | 20.035 µg/L 25% of the EPA limit 80 µg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 120.525 µg/L — ST LANDRY WWD 3 PORT BARRE AREA B · 516 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.27 µg/L 19% of the EPA limit 60 µg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 55.41 µg/L — ST LANDRY WWD 3 PORT BARRE AREA C · 351 people · 2019 | 5/5 | SYR4 |
| Chloroform | 9.12 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 51.355 µg/L — ST LANDRY WWD 3 PORT BARRE AREA C · 351 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 4.875 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 48.675 µg/L — ST LANDRY WWD 3 PORT BARRE AREA B · 516 people · 2019 | 5/5 | SYR4 |
| Dichloroacetic Acid | 4.88 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 32.57 µg/L — ST LANDRY WWD 3 PORT BARRE AREA C · 351 people · 2019 | 5/5 | SYR4 |
| Bromodichloromethane | 6.505 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 32.56 µg/L — ST LANDRY WWD 3 PORT BARRE AREA B · 516 people · 2019 | 5/5 | SYR4 |
| Monochloroacetic Acid | 21.33 µg/L No EPA limit set Highest in the city: ST LANDRY WWD 3 PORT BARRE AREA D · 1,860 people · 2019 | 4/5 | SYR4 |
| Bromoform | 19.59 µg/L No EPA limit set Highest in the city: ST LANDRY WWD 3 PORT BARRE AREA B · 516 people · 2019 | 3/5 | SYR4 |
| Lithium | 15.7 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2025 | 1/5 | UCMR-5 |
| Trichloroacetic Acid | 5.55 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 14.14 µg/L — ST LANDRY WWD 3 PORT BARRE AREA B · 516 people · 2019 | 5/5 | SYR4 |
| Dibromoacetic Acid | 2.21 µg/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019
Highest in the city: 13.84 µg/L — ST LANDRY WWD 3 PORT BARRE AREA B · 516 people · 2019 | 5/5 | SYR4 |
| Lead | 6.1 µg/L 41% of the EPA limit 15 µg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2019 | 5/5 | SYR4 |
| Gross Beta Particle Activity | 3.946 pCi/L No EPA limit set Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2017 | 1/5 | SYR4 |
| Combined Radium (-226 And -228) | 2.256 pCi/L 45% of the EPA limit 5 pCi/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2017 | 1/5 | SYR4 |
| Monobromoacetic Acid | 0.5820 µg/L No EPA limit set Highest in the city: ST LANDRY WWD 3 PORT BARRE AREA D · 1,860 people · 2019 | 2/5 | SYR4 |
| P-Dichlorobenzene | 0.2600 µg/L 0.3% of the EPA limit 75 µg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2017 | 1/5 | SYR4 |
| Lead | 0.00075 mg/L 5% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF PORT BARRE WATER SYSTEM · 3,828 people · 2025 | 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 Barre
| Supplier | Population served |
|---|---|
| TOWN OF PORT BARRE WATER SYSTEM | 3,828 |
| ST LANDRY WWD 3 PORT BARRE AREA D | 1,860 |
| ST LANDRY WWD 3 PORT BARRE AREA B | 516 |
| ST LANDRY WWD 3 PORT BARRE AREA C | 351 |
| ST LANDRY WWD 3 PORT BARRE AREA A | 270 |
Frequently asked questions about Port Barre tap water
Is Port Barre tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Port Barre. 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 Barre?
5 public water suppliers report drinking-water monitoring for Port Barre, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Port Barre's water?
The contaminants EPA monitoring detected in Port Barre include Copper, Fluoride, TTHM, Total Haloacetic Acids (HAA5), Chloroform. 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.