ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: probably a private well

No community water system’s service area covers the center of ZIP 17555, and no system lists it. In rural areas that usually means private wells. The EPA does not regulate private wells: owners should test once a year for coliform bacteria and nitrate, and every few years for arsenic, lead, uranium and other local concerns. Your county health department can recommend a certified lab.

Radon in Lancaster 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 Relatively Moderate, with relatively moderate social vulnerability and relatively moderate community resilience.

Riverine floodingRelatively High

Winter weatherRelatively High

Cold waveRelatively Moderate

DroughtRelatively Moderate

HailRelatively Moderate

Heat waveRelatively Moderate

HurricaneRelatively Moderate

LightningRelatively Moderate

Strong windRelatively Moderate

EarthquakeRelatively Low

Ice stormRelatively Low

LandslideRelatively Low

TornadoRelatively Low

WildfireVery Low

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
Walsh Landfill Honeybrook Township, Pennsylvania · EPA ID PAD980829527	Active (final NPL)	2.3 mi
William Dick Lagoons West Caln Township, Pennsylvania · EPA ID PAD980537773	Active (final NPL)	6.4 mi
Blosenski Landfill West Caln Township, Pennsylvania · EPA ID PAD980539985	Active (final NPL)	7.5 mi
Old Wilmington Road Ground Water Contamination Sadsburyville, Pennsylvania · EPA ID PAD981938939	Active (final NPL)	9.2 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.

Buying a home in Narvon? See the 2026 conforming, FHA and jumbo loan limits for Lancaster County →

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 17555

Does ZIP 17555 have public water?

No community water system service area covers the center of ZIP 17555, and none lists it. Homes here most likely use private wells, which no agency tests — owners should test yearly for bacteria and nitrate, and every few years for arsenic, lead and other local concerns.

What natural hazards affect ZIP 17555?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Moderate; the highest-rated hazards are riverine flooding (relatively high), winter weather (relatively high), cold wave (relatively moderate).

Are there Superfund sites near 17555?

Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Walsh Landfill (2.3 mi, Active (final NPL)); William Dick Lagoons (6.4 mi, Active (final NPL)); Blosenski Landfill (7.5 mi, Active (final NPL)).

Is radon a problem in Lancaster County?

Lancaster County is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.