What was found in Longville'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 |
|---|---|---|---|
| Nitrate-Nitrite | 1000 µg/L 10% of the EPA limit 10000 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Fluoride | 845 µg/L 21% of the EPA limit 4000 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Copper | 470 µg/L 36% of the EPA limit 1300 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Barium | 39.15 µg/L 2% of the EPA limit 2000 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| TTHM | 30.9825 µg/L 39% of the EPA limit 80 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Chromium | 20 µg/L 20% of the EPA limit 100 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Chloroform | 14.25 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 13.7 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2024 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 12.225 µg/L 20% of the EPA limit 60 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 9.805 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 8.796 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Selenium | 8.638 µg/L 17% of the EPA limit 50 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.336 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 7.136 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Lead | 6 µg/L 40% of the EPA limit 15 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 4.68 µg/L 78% of the EPA limit 6 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Arsenic | 4.475 µg/L 45% of the EPA limit 10 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.362 pCi/L 29% of the EPA limit 15 pCi/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2016 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.1 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.3 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 2.194 pCi/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Monochloroacetic Acid | 1.51 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.1454 pCi/L 23% of the EPA limit 5 pCi/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Diquat | 0.8600 µg/L 4.3% of the EPA limit 20 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Monobromoacetic Acid | 0.4325 µg/L No EPA limit set Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2019 | 1/1 | SYR4 |
| Benzo(A)Pyrene | 0.0230 µg/L 12% of the EPA limit 0.2000 µg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: BEAUREGARD WATER WORKS DIST #3 · 24,000 people · 2023 | 1/1 | 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 Longville
| Supplier | Population served |
|---|---|
| BEAUREGARD WATER WORKS DIST #3 | 24,000 |
Frequently asked questions about Longville tap water
Is Longville tap water safe to drink?
EPA testing detected 27 contaminants in the water serving Longville. 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 Longville?
1 public water supplier report drinking-water monitoring for Longville, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Longville's water?
The contaminants EPA monitoring detected in Longville include Nitrate-Nitrite, Fluoride, Copper, Barium, TTHM. 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.