Home hazard report for 18951 — Quakertown, PA
ZIP 18951 is served by Richland Twp Water Authority: no health-based violations since 2016, latest lead result 1 ppb, PFAS 8.3 ppt. Bucks County is in EPA radon zone 1.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jun 2025). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 7 PFAS compounds detected.
Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code.
Active weather alerts
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Where ZIP 18951 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Richland Twp Water Authority
Health-based violations
No health-based violations reported since 2016.
Full record for Richland Twp Water Authority →
Other systems overlapping this ZIP: Milford Twp Water Authority.
Lead
90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.
PFAS (“forever chemicals”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFBS | 9.7 ppt | 6 of 6 | — |
| PFOS | 8.3 ppt | 6 of 6 | 4 ppt MCL |
| PFOA | 7.1 ppt | 6 of 6 | 4 ppt MCL |
| PFBA | 6.1 ppt | 3 of 6 | — |
| PFNA | 5.1 ppt | 2 of 6 | — |
| PFPeA | 4.6 ppt | 5 of 6 | — |
| PFHxA | 4 ppt | 3 of 6 | — |
| HFPO-DA (GenX) | not detected | 0 of 6 | — |
| PFHpA | not detected | 0 of 6 | — |
| PFDA | not detected | 0 of 6 | — |
| PFHxS | not detected | 0 of 6 | — |
EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.
Radon in Bucks County
EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →
Natural hazard risk
FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Very Low, with relatively low social vulnerability and relatively high community resilience.
FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.
Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Watson Johnson Landfill Richland Township, Pennsylvania · EPA ID PAD980706824 | Active (final NPL) | <1 mi |
| Voortman Farm Upper Saucon Township, Pennsylvania · EPA ID PAD980692719 | Cleaned up & deleted | 8.0 mi |
| Rodale Manufacturing Co., Inc. Emmaus Borough, Pennsylvania · EPA ID PAD981033285 | Active (final NPL) | 9.1 mi |
| Hellertown Manufacturing Co. Hellertown, Pennsylvania · EPA ID PAD002390748 | Active (final NPL) | 9.4 mi |
| Dublin TCE Site Dublin Borough, Pennsylvania · EPA ID PAD981740004 | Active (final NPL) | 9.7 mi |
| Revere Chemical Co. Nockamixon Township, Pennsylvania · EPA ID PAD051395499 | Active (final NPL) | 9.9 mi |
EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions about 18951
Who supplies drinking water to ZIP 18951?
Richland Twp Water Authority (EPA ID PA1090131), a groundwater (wells) system serving about 6,800 people.
Is there lead in Quakertown, PA tap water?
The utility’s latest 90th-percentile lead result (Jun 2025) was 1 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.
Does Quakertown, PA water have PFAS?
Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 7 PFAS compounds detected.
Has the water system in 18951 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 18951?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Very Low; the highest-rated hazards are ice storm (relatively moderate), winter weather (relatively moderate), cold wave (relatively low).
Are there Superfund sites near 18951?
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Watson Johnson Landfill (0.8 mi, Active (final NPL)); Voortman Farm (8.0 mi, Cleaned up & deleted); Rodale Manufacturing Co., Inc. (9.1 mi, Active (final NPL)).
Is radon a problem in Bucks County?
Bucks County is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.