What was found in Oil City'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 | 780 µg/L 60% of the EPA limit 1300 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 248.11 µg/L 414% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| TTHM | 205.15 µg/L 256% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Chloroform | 160.1 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 118.3 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 111.9 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Fluoride | 86.25 µg/L 2.2% of the EPA limit 4000 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 75 µg/L 0.8% of the EPA limit 10000 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Barium | 55.6 µg/L 2.8% of the EPA limit 2000 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Lead | 47.65 µg/L 318% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 44 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Dalapon | 35.405 µg/L 18% of the EPA limit 200 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 18.2 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 17.48 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Cyanide | 8.8 µg/L 4.4% of the EPA limit 200 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 8.52 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4.74 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 2.5485 pCi/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.24 µg/L No EPA limit set Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9480 µg/L 16% of the EPA limit 6 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.4912 pCi/L 9.8% of the EPA limit 5 pCi/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Pentachlorophenol | 0.1290 µg/L 13% of the EPA limit 1 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| 2,4-D | 0.0850 µg/L 0.1% of the EPA limit 70 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Hexachlorocyclopentadiene | 0.0619 µg/L 0.1% of the EPA limit 50 µg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF OIL CITY WATER SYSTEM · 2,148 people · 2025 | 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 Oil City
| Supplier | Population served |
|---|---|
| TOWN OF OIL CITY WATER SYSTEM | 2,148 |
Frequently asked questions about Oil City tap water
Is Oil City tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Oil City. 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 Oil City?
1 public water supplier report drinking-water monitoring for Oil City, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Oil City's water?
The contaminants EPA monitoring detected in Oil City include Copper, Total Haloacetic Acids (HAA5), TTHM, Chloroform, Dichloroacetic Acid. 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.