What was found in Trappe'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 | 5155 µg/L 52% of the EPA limit 10000 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Copper | 1119 µg/L 86% of the EPA limit 1300 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Barium | 502.9 µg/L 25% of the EPA limit 2000 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2018 | 1/1 | SYR4 |
| Fluoride | 117 µg/L 2.9% of the EPA limit 4000 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2018 | 1/1 | SYR4 |
| Lithium | 37 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| TTHM | 18.44 µg/L 23% of the EPA limit 80 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Lead | 17.95 µg/L 120% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 7.1445 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Arsenic | 6 µg/L 60% of the EPA limit 10 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 5.961 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 4.1869 µg/L 14% of the EPA limit 30 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2017 | 1/1 | SYR4 |
| Bromoform | 3.867 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.2305 µg/L 5.4% of the EPA limit 60 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Chloroform | 2.846 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.426 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 1.83 µg/L 0% of the EPA limit 10000 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| cis-1,2-Dichloroethylene | 1.734 µg/L 2.5% of the EPA limit 70 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 0.8812 µg/L 18% of the EPA limit 5 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.6000 µg/L 10% of the EPA limit 6 µg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2018 | 1/1 | SYR4 |
| PFOA | 0.2350 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0153 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| PFOS | 0.0150 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| Pfhxa | 0.0109 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| Pfpea | 0.0084 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| Pfba | 0.0066 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| Pfhpa | 0.0062 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| PFHXS | 0.0042 µg/L No EPA limit set Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: COLLEGEVILLE TRAPPE JOINT PWD · 8,470 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 Trappe
| Supplier | Population served |
|---|---|
| COLLEGEVILLE TRAPPE JOINT PWD | 8,470 |
Frequently asked questions about Trappe tap water
Is Trappe tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Trappe. 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 Trappe?
1 public water supplier report drinking-water monitoring for Trappe, Pennsylvania to the EPA. Each is listed above with its population served.
What contaminants are in Trappe's water?
The contaminants EPA monitoring detected in Trappe include Nitrate, Copper, Barium, Fluoride, Lithium. 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.