What was found in ZIP 19464
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 | 5042.5 µg/L 50% of the EPA limit 10000 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 3/3 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L Highest in the ZIP: POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2019 | 2/3 | SYR4 |
| Barium | 475 µg/L 24% of the EPA limit 2000 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 2/3 | SYR4 |
| Copper | 350.75 µg/L 27% of the EPA limit 1300 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 3/3 | SYR4 |
| TTHM | 91.38 µg/L 114% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 93.52 µg/L — POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2019 | 3/3 | SYR4 |
| Chloroform | 60.84 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 48.035 µg/L 80% of the EPA limit 60 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 53.71 µg/L — POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2019 | 3/3 | SYR4 |
| Lithium | 45.2 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024
Highest in the ZIP: 45.4 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 3/3 | UCMR-5 |
| Trichloroacetic Acid | 33.085 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 16.325 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 31.8 µg/L — POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 24.9 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 25.5 µg/L — POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 13.75 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 24.97 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 3/3 | SYR4 |
| Lead | 24.3 µg/L 162% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 3/3 | SYR4 |
| Xylenes, Total | 21.9 µg/L 0.2% of the EPA limit 10000 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 2/3 | SYR4 |
| Nitrite | 20 µg/L 2% of the EPA limit 1000 µg/L Highest in the ZIP: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 1/3 | SYR4 |
| Bromoform | 3.205 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 19.44 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 1.93 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 9.19 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 3/3 | SYR4 |
| Arsenic | 3 µg/L 30% of the EPA limit 10 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019
Highest in the ZIP: 8.805 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 3.58271 µg/L 12% of the EPA limit 30 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2018
Highest in the ZIP: 8.68521 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 2/3 | SYR4 |
| Chromium | 7.26 µg/L 7.3% of the EPA limit 100 µg/L Highest in the ZIP: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 1/3 | SYR4 |
| Monochloroacetic Acid | 6.4 µg/L No EPA limit set Highest in the ZIP: POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2019 | 1/3 | SYR4 |
| Ethylbenzene | 3.3 µg/L 0.5% of the EPA limit 700 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.42 µg/L 40% of the EPA limit 6 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 2.06 µg/L No EPA limit set Highest in the ZIP: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2019 | 2/3 | SYR4 |
| Selenium | 1.537 µg/L 3.1% of the EPA limit 50 µg/L Highest in the ZIP: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 1/3 | SYR4 |
| Cyanide | 1 µg/L 0.5% of the EPA limit 200 µg/L Highest in the ZIP: AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2018 | 1/3 | SYR4 |
| Antimony, Total | 0.5950 µg/L 9.9% of the EPA limit 6 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 1/3 | SYR4 |
| Tetrachloroethylene | 0.5950 µg/L 12% of the EPA limit 5 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 1/3 | SYR4 |
| Dichloromethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 1/3 | SYR4 |
| Atrazine | 0.2000 µg/L 6.7% of the EPA limit 3 µg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0054 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024
Highest in the ZIP: 0.0126 µg/L — POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2025 | 3/3 | UCMR-5 |
| PFOA | 0.0091 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024
Highest in the ZIP: 0.0118 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 2/3 | UCMR-5 |
| PFOS | 0.0107 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024 | 2/3 | UCMR-5 |
| Pfpea | 0.0062 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024
Highest in the ZIP: 0.0074 µg/L — POTTSTOWN BOROUGH WATER AUTH · 36,000 people · 2025 | 3/3 | UCMR-5 |
| PFBS | 0.0070 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024 | 3/3 | UCMR-5 |
| Pfhxa | 0.0057 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024
Highest in the ZIP: 0.0066 µg/L — AQUA PA SUPERIOR MAIN SYSTEM · 11,400 people · 2025 | 3/3 | UCMR-5 |
| PFHXS | 0.0050 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024 | 1/3 | UCMR-5 |
| Pfhpa | 0.0034 µg/L No EPA limit set Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: PA AMERICAN ROYERSFORD · 49,508 people · 2025 | 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.
Water suppliers serving ZIP 19464
| Supplier | State | Population served |
|---|---|---|
| PA AMERICAN ROYERSFORD | PA | 49,508 |
| POTTSTOWN BOROUGH WATER AUTH | PA | 36,000 |
| AQUA PA SUPERIOR MAIN SYSTEM | PA | 11,400 |
Frequently asked questions about ZIP 19464 tap water
Is the tap water in ZIP 19464 safe to drink?
EPA testing detected 39 contaminants across the water suppliers serving ZIP 19464. 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 19464?
3 public water suppliers report EPA drinking-water monitoring for ZIP 19464. Each is listed above with its population served.
What contaminants are in ZIP 19464's water?
EPA monitoring detected Nitrate, Fluoride, Barium, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.