EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 17320 — Fairfield, PA

ZIP 17320 is served by Carroll Valley Water System: no health-based violations since 2016, latest lead result 4 ppb, PFAS not tested. Adams County is in EPA radon zone 1.

Active weather alerts

live from the National Weather Service

Checking the National Weather Service…

Where ZIP 17320 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
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: Carroll Valley Water System

EPA IDPA7010033
People served267
Sourcegroundwater (wells)
Connections108

Health-based violations

No health-based violations reported since 2016.

Full record for Carroll Valley Water System →

Lead

Jan 19984 ppb
Jan 19943.6 ppb
Jul 19936.8 ppb

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”)

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

Radon in Adams 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
Strong windRelatively High
Winter weatherRelatively High
DroughtRelatively Moderate
Heat waveRelatively Moderate
HurricaneRelatively Moderate
LightningRelatively Moderate
Cold waveRelatively Low
EarthquakeRelatively Low
HailRelatively 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

SiteStatusDistance
Westinghouse Elevator Co. Plant
Cumberland Township, Pennsylvania · EPA ID PAD043882281
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.

Buying a home in Fairfield? See the 2026 conforming, FHA and jumbo loan limits for Adams 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 17320

Who supplies drinking water to ZIP 17320?

Carroll Valley Water System (EPA ID PA7010033), a groundwater (wells) system serving about 267 people.

Is there lead in Fairfield, PA tap water?

The utility’s latest 90th-percentile lead result (Jan 1998) was 4 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 Fairfield, PA water have PFAS?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).

Has the water system in 17320 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 17320?

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

Are there Superfund sites near 17320?

The nearest active Superfund site is 9.9 miles away. Sites within 10 miles: Westinghouse Elevator Co. Plant (9.9 mi, Active (final NPL)).

Is radon a problem in Adams County?

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