What was found in Duncansville'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 | 2200 µg/L 22% of the EPA limit 10000 µg/L Highest in the city: DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2018 | 2/3 | SYR4 |
| Copper | 59.6 µg/L 4.6% of the EPA limit 1300 µg/L Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019
Highest in the city: 1011.1 µg/L — DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2019 | 3/3 | SYR4 |
| TTHM | 35.975 µg/L 45% of the EPA limit 80 µg/L Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019
Highest in the city: 98.1 µg/L — BEL AIR PARK APTS · 44 people · 2019 | 3/3 | SYR4 |
| Chloroform | 27.335 µg/L No EPA limit set Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019
Highest in the city: 94.98 µg/L — BEL AIR PARK APTS · 44 people · 2019 | 3/3 | SYR4 |
| Barium | 61.96 µg/L 3.1% of the EPA limit 2000 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2018 | 2/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.2105 µg/L 19% of the EPA limit 60 µg/L Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019
Highest in the city: 20.62 µg/L — BEL AIR PARK APTS · 44 people · 2019 | 3/3 | SYR4 |
| Lead | 20.25 µg/L 135% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019 | 3/3 | SYR4 |
| Toluene | 12.3 µg/L 1.2% of the EPA limit 1000 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Xylenes, Total | 9.24 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Dichloroacetic Acid | 8.89 µg/L No EPA limit set Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 6.9035 µg/L No EPA limit set Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 5.42 µg/L No EPA limit set Highest in the city: DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 1.7605 µg/L No EPA limit set Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019
Highest in the city: 3.996 µg/L — DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2019 | 3/3 | SYR4 |
| Tetrachloroethylene | 2.78 µg/L 56% of the EPA limit 5 µg/L Highest in the city: DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2019 | 1/3 | SYR4 |
| Trichloroacetic Acid | 2.5045 µg/L No EPA limit set Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 2019
Highest in the city: 2.53 µg/L — BEL AIR PARK APTS · 44 people · 2019 | 2/3 | SYR4 |
| Bromoform | 2.281 µg/L No EPA limit set Highest in the city: DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 2.14 µg/L No EPA limit set Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Picloram | 1.65 µg/L 0.3% of the EPA limit 500 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Selenium | 1.43 µg/L 2.9% of the EPA limit 50 µg/L Highest in the city: DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2018 | 1/3 | SYR4 |
| Ethylbenzene | 1.15 µg/L 0.2% of the EPA limit 700 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Dinoseb | 0.7000 µg/L 10% of the EPA limit 7 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Dalapon | 0.4900 µg/L 0.2% of the EPA limit 200 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| 2,4-D | 0.4600 µg/L 0.7% of the EPA limit 70 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Arsenic | 0.3040 µg/L 3% of the EPA limit 10 µg/L Highest in the city: DUNCANSVILLE MUNI WATER AUTH · 2,350 people · 2018 | 1/3 | SYR4 |
| Pentachlorophenol | 0.0760 µg/L 7.6% of the EPA limit 1 µg/L Highest in the city: BEL AIR PARK APTS · 44 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: BLAIR TWP WATER & SEWER AUTH · 2,550 people · 1996
Highest in the city: 0.0047 mg/L — BEL AIR PARK APTS · 44 people · 1996 | 3/3 | 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 Duncansville
| Supplier | Population served |
|---|---|
| BLAIR TWP WATER & SEWER AUTH | 2,550 |
| DUNCANSVILLE MUNI WATER AUTH | 2,350 |
| BEL AIR PARK APTS | 44 |
Frequently asked questions about Duncansville tap water
Is Duncansville tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Duncansville. 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 Duncansville?
3 public water suppliers report drinking-water monitoring for Duncansville, Pennsylvania to the EPA. Each is listed above with its population served.
What contaminants are in Duncansville's water?
The contaminants EPA monitoring detected in Duncansville include Nitrate, Copper, TTHM, Chloroform, Barium. 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.