What was found in Jennings'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 | 300 µg/L 23% of the EPA limit 1300 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018
Highest in the city: 1160 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Fluoride | 250 µg/L 6.3% of the EPA limit 4000 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018
Highest in the city: 306 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Barium | 249 µg/L 12% of the EPA limit 2000 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018 | 2/2 | SYR4 |
| Nitrate-Nitrite | 200 µg/L 2% of the EPA limit 10000 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 1/2 | SYR4 |
| TTHM | 45.7 µg/L 57% of the EPA limit 80 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 2/2 | SYR4 |
| Lithium | 23.9 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2024 | 2/2 | UCMR-5 |
| Dibromochloromethane | 17.9 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.66 µg/L 19% of the EPA limit 60 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019
Highest in the city: 16.32 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 3.08 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019
Highest in the city: 12.66 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Bromoform | 12.64 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 10.37 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.76 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019
Highest in the city: 10.3 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 1.645 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019
Highest in the city: 9 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4.4 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019
Highest in the city: 5.666 µg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| Chloroform | 5.17 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 2/2 | SYR4 |
| Lead | 5.05 µg/L 34% of the EPA limit 15 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018 | 2/2 | SYR4 |
| Dichloroacetic Acid | 4.09 µg/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 2.893 pCi/L No EPA limit set Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.278 µg/L 21% of the EPA limit 6 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.02885 pCi/L 21% of the EPA limit 5 pCi/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018
Highest in the city: 1.18 pCi/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 2/2 | SYR4 |
| P-Dichlorobenzene | 0.3460 µg/L 0.5% of the EPA limit 75 µg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2018 | 1/2 | SYR4 |
| Hexachlorobenzene | 0.1970 µg/L 20% of the EPA limit 1 µg/L Highest in the city: JEFF DAVIS WATER DISTRICT 4 · 4,194 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: CITY OF JENNINGS WATER SYSTEM · 9,837 people · 2023
Highest in the city: 0.0014 mg/L — JEFF DAVIS WATER DISTRICT 4 · 4,194 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 Jennings
| Supplier | Population served |
|---|---|
| CITY OF JENNINGS WATER SYSTEM | 9,837 |
| JEFF DAVIS WATER DISTRICT 4 | 4,194 |
Frequently asked questions about Jennings tap water
Is Jennings tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Jennings. 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 Jennings?
2 public water suppliers report drinking-water monitoring for Jennings, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Jennings's water?
The contaminants EPA monitoring detected in Jennings include Copper, Fluoride, Barium, Nitrate-Nitrite, 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.