What was found in Dry Prong'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 | 3760 µg/L 289% of the EPA limit, at the 95th percentile of samples — 1300 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018 | 2/2 | SYR4 |
| Nitrate-Nitrite | 1000 µg/L 10% of the EPA limit 10000 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019 | 2/2 | SYR4 |
| Fluoride | 98.65 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018
Highest in the city: 137.5 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 2/2 | SYR4 |
| Barium | 47.85 µg/L 2.4% of the EPA limit 2000 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018
Highest in the city: 57.5 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 2/2 | SYR4 |
| TTHM | 2.5955 µg/L 3.2% of the EPA limit 80 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019
Highest in the city: 25.31 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 2/2 | SYR4 |
| Lead | 12.35 µg/L 82% of the EPA limit 15 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018 | 2/2 | SYR4 |
| Dibromochloromethane | 9.798 µg/L No EPA limit set Highest in the city: VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 2.7 µg/L No EPA limit set Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019
Highest in the city: 9.02 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.175 µg/L 10% of the EPA limit 60 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019 | 2/2 | SYR4 |
| Chloroform | 0.6100 µg/L No EPA limit set Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019
Highest in the city: 5.81 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.62 µg/L No EPA limit set Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019 | 1/2 | SYR4 |
| Asbestos | 4.6 MFL 66% of the EPA limit 7 MFL Highest in the city: VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 1/2 | SYR4 |
| Bromoform | 4 µg/L No EPA limit set Highest in the city: VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 1.66 µg/L No EPA limit set Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019
Highest in the city: 2.775 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 2/2 | SYR4 |
| Selenium | 0.8600 µg/L 1.7% of the EPA limit 50 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018
Highest in the city: 2.06 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.78 µg/L 30% of the EPA limit 6 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 1.45 pCi/L No EPA limit set Highest in the city: VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 1/2 | SYR4 |
| Arsenic | 0.6400 µg/L 6.4% of the EPA limit 10 µg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2018
Highest in the city: 1.26 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.9992 pCi/L 20% of the EPA limit 5 pCi/L Highest in the city: VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 1/2 | SYR4 |
| Dibromoacetic Acid | 0.3100 µg/L No EPA limit set Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019
Highest in the city: 0.9970 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 0.4940 µg/L No EPA limit set Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2019
Highest in the city: 0.7090 µg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.5495 µg/L 0.1% of the EPA limit 400 µg/L Highest in the city: VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2018 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CENTRAL GRANT WATER SYSTEM · 2,250 people · 2023
Highest in the city: 0.0060 mg/L — VILLAGE OF DRY PRONG WATER SYSTEM · 1,155 people · 2023 | 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 Dry Prong
| Supplier | Population served |
|---|---|
| CENTRAL GRANT WATER SYSTEM | 2,250 |
| VILLAGE OF DRY PRONG WATER SYSTEM | 1,155 |
Frequently asked questions about Dry Prong tap water
Is Dry Prong tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Dry Prong. 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 Dry Prong?
2 public water suppliers report drinking-water monitoring for Dry Prong, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Dry Prong's water?
The contaminants EPA monitoring detected in Dry Prong include Copper, Nitrate-Nitrite, Fluoride, 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.