What was found in ZIP 18074
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 3150 µg/L 32% of the EPA limit 10000 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Fluoride | 365 µg/L 9.1% of the EPA limit 4000 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018
Highest in the ZIP: 1000 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2018 | 2/2 | SYR4 |
| Copper | 226.5 µg/L 17% of the EPA limit 1300 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019
Highest in the ZIP: 355 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 2/2 | SYR4 |
| Barium | 333.2 µg/L 17% of the EPA limit 2000 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 2/2 | SYR4 |
| TTHM | 62.6 µg/L 78% of the EPA limit 80 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Lithium | 45.4 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025
Highest in the ZIP: 45.7 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2023 | 2/2 | UCMR-5 |
| Dibromochloromethane | 24.97 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Xylenes, Total | 1.4 µg/L 0% of the EPA limit 10000 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019
Highest in the ZIP: 21.58 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 2/2 | SYR4 |
| Nitrite | 20 µg/L 2% of the EPA limit 1000 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 1/2 | SYR4 |
| Bromoform | 19.44 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 8.68521 µg/L 29% of the EPA limit 30 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018
Highest in the ZIP: 16.3557 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 15.05 µg/L 25% of the EPA limit 60 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 14.71 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Arsenic | 8.805 µg/L 88% of the EPA limit 10 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019
Highest in the ZIP: 14 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 9.19 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 1/2 | SYR4 |
| Chromium | 7.26 µg/L 7.3% of the EPA limit 100 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 2/2 | SYR4 |
| Chloroform | 7.1 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Lead | 4.83 µg/L 32% of the EPA limit 15 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 4.25 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/2 | SYR4 |
| Ethylbenzene | 3.868 µg/L 0.6% of the EPA limit 700 µg/L Highest in the ZIP: SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 1/2 | SYR4 |
| Selenium | 1.537 µg/L 3.1% of the EPA limit 50 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018
Highest in the ZIP: 2.46 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2018 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.06 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 1.75 µg/L 88% of the EPA limit 2 µg/L Highest in the ZIP: SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2018 | 1/2 | SYR4 |
| 1,1-Dichloroethylene | 1.655 µg/L 24% of the EPA limit 7 µg/L Highest in the ZIP: SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 1.2 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 1/2 | SYR4 |
| cis-1,2-Dichloroethylene | 1.01 µg/L 1.4% of the EPA limit 70 µg/L Highest in the ZIP: SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2019 | 1/2 | SYR4 |
| Cyanide | 1 µg/L 0.5% of the EPA limit 200 µg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.2400 µg/L 0.1% of the EPA limit 400 µg/L Highest in the ZIP: SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2018 | 1/2 | SYR4 |
| PFOA | 0.0118 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 2/2 | UCMR-5 |
| PFOS | 0.0058 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025
Highest in the ZIP: 0.0083 µg/L — SCHWENKSVILLE BOROUGH AUTH · 5,200 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0066 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 1/2 | UCMR-5 |
| PFBS | 0.0059 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 2/2 | UCMR-5 |
| Pfpea | 0.0057 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 1/2 | UCMR-5 |
| Pfba | 0.0054 µg/L No EPA limit set Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 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.
Water suppliers serving ZIP 18074
| Supplier | State | Population served |
|---|---|---|
| AQUA PA SUPERIOR MAIN SYSTEM | PA | 11,400 |
| SCHWENKSVILLE BOROUGH AUTH | PA | 5,200 |
Frequently asked questions about ZIP 18074 tap water
Is the tap water in ZIP 18074 safe to drink?
EPA testing detected 35 contaminants across the water suppliers serving ZIP 18074. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 18074?
2 public water suppliers report EPA drinking-water monitoring for ZIP 18074. Each is listed above with its population served.
What contaminants are in ZIP 18074's water?
EPA monitoring detected Nitrate, Fluoride, Copper, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.