EPA data as of Oct 2026 · page updated 2026-10-30

Home hazard report for 98303 — Anderson Island, WA

ZIP 98303 is served by Lake Josephine Riviera: no health-based violations since 2016, latest lead result 2.6 ppb, PFAS not tested. Pierce County is in EPA radon zone 3.

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Where ZIP 98303 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: Lake Josephine Riviera

EPA IDWA5343980
People served1,380
Sourcegroundwater (wells)
Connections904

Health-based violations

No health-based violations reported since 2016.

Full record for Lake Josephine Riviera →

Lead

Jan 20222.6 ppb
Jan 20191.2 ppb
Jan 20161 ppb
Jan 20131 ppb
Jan 20111 ppb
Jan 20053 ppb
Aug 20042 ppb
Feb 20044 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 Pierce County

EPA radon zone 3 — low potential. Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.

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 High, with relatively high social vulnerability and relatively moderate community resilience.

EarthquakeVery High
Coastal floodingRelatively High
Heat waveRelatively Moderate
Riverine floodingRelatively Moderate
Winter weatherRelatively Moderate
Ice stormRelatively Low
LandslideRelatively Low
LightningRelatively Low
Strong windRelatively Low
TsunamiRelatively Low
WildfireRelatively Low
HailVery Low
TornadoVery Low
Volcanic activityVery 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
Fort Lewis (Landfill No. 5)
Tacoma, Washington · EPA ID WA9214053465
Cleaned up & deleted3.2 mi
Fort Lewis Logistics Center
Tillicum, Washington · EPA ID WA7210090067
Active (final NPL)7.3 mi
American Lake Gardens/McChord AFB
Tacoma, Washington · EPA ID WAD980833065
Active (final NPL)7.5 mi
Lakewood
Lakewood, Washington · EPA ID WAD050075662
Active (final NPL)7.9 mi
McChord Air Force Base (Wash Rack/Treatment Area)
Tacoma, Washington · EPA ID WA8570024200
Cleaned up & deleted9.1 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 Anderson Island? See the 2026 conforming, FHA and jumbo loan limits for Pierce 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 98303

Who supplies drinking water to ZIP 98303?

Lake Josephine Riviera (EPA ID WA5343980), a groundwater (wells) system serving about 1,380 people.

Is there lead in Anderson Island, WA tap water?

The utility’s latest 90th-percentile lead result (Jan 2022) was 2.6 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 Anderson Island, WA 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 98303 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 98303?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively High; the highest-rated hazards are earthquake (very high), coastal flooding (relatively high), heat wave (relatively moderate).

Are there Superfund sites near 98303?

The nearest active Superfund site is 7.3 miles away. Sites within 10 miles: Fort Lewis (Landfill No. 5) (3.2 mi, Cleaned up & deleted); Fort Lewis Logistics Center (7.3 mi, Active (final NPL)); American Lake Gardens/McChord AFB (7.5 mi, Active (final NPL)).

Is radon a problem in Pierce County?

Pierce County is in EPA radon zone 3 (low potential). Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.