What was found in Welsh'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 |
|---|---|---|---|
| Barium | 179.5 µg/L 9% of the EPA limit 2000 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 1000 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Copper | 769.9999999999995 µg/L 59% of the EPA limit 1300 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 110 µg/L 1.1% of the EPA limit 10000 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 1/2 | SYR4 |
| Lead | 3.25 µg/L 22% of the EPA limit 15 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 40.94999999999983 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2018 | 2/2 | SYR4 |
| TTHM | 25.045 µg/L 31% of the EPA limit 80 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 26.49 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Lithium | 12.7 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2024
Highest in the city: 25.9 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2024 | 2/2 | UCMR-5 |
| Monochloroacetic Acid | 1.05 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 21.21 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.929999999999998 µg/L 20% of the EPA limit 60 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 17.61999999999998 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 10.57 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 11.25 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Bromoform | 4.235 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 10.545 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 7.54 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 5.930499999999997 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 3.405 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 5.1 µg/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2019 | 2/2 | SYR4 |
| Chloroform | 3.7449999999999997 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 3.035 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 2.8209999999999997 pCi/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.77 pCi/L 18% of the EPA limit 15 pCi/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2016 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.9024 pCi/L 18% of the EPA limit 5 pCi/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019
Highest in the city: 2.7459999999999996 pCi/L — TOWN OF WELSH WATER SYSTEM · 4,311 people · 2018 | 2/2 | SYR4 |
| Trichloroacetic Acid | 1.5399999999999998 µg/L No EPA limit set Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.8270 µg/L 14% of the EPA limit 6 µg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L Main supplier: JEFF DAVIS CENTRAL WATERWORKS DISTRICT · 5,709 people · 2025 | 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 Welsh
| Supplier | Population served |
|---|---|
| JEFF DAVIS CENTRAL WATERWORKS DISTRICT | 5,709 |
| TOWN OF WELSH WATER SYSTEM | 4,311 |
Frequently asked questions about Welsh tap water
Is Welsh tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Welsh. 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 Welsh?
2 public water suppliers report drinking-water monitoring for Welsh, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Welsh's water?
The contaminants EPA monitoring detected in Welsh include Barium, Copper, Fluoride, Nitrate-Nitrite, Lead. 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.