Home hazard report for 98666 — Vancouver, WA
ZIP 98666 is served by City of Vancouver: no health-based violations since 2016, latest lead result 2.2 ppb, PFAS 18.6 ppt. Clark is in EPA radon zone 1.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jan 2021). 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.
The nearest active Superfund site is 3.3 miles away.
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Where ZIP 98666 is
blue: utility service area · scroll or pinch to zoomDrinking water: City of Vancouver
Health-based violations
No health-based violations reported since 2016.
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 |
|---|---|---|---|
| PFOS | 18.6 ppt | 16 of 20 | 4 ppt MCL |
| PFOA | 11.5 ppt | 10 of 20 | 4 ppt MCL |
| PFBS | 7.6 ppt | 14 of 20 | — |
| PFPeA | 7.4 ppt | 8 of 20 | — |
| PFHxA | 7.3 ppt | 8 of 20 | — |
| PFHxS | 6.6 ppt | 16 of 20 | — |
| PFHpA | 3 ppt | 1 of 20 | — |
| PFNA | not detected | 0 of 20 | — |
| PFBA | not detected | 0 of 20 | — |
| PFDA | not detected | 0 of 20 | — |
| HFPO-DA (GenX) | not detected | 0 of 20 | — |
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 Clark
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 →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Vancouver Water Station #1 Contamination Vancouver, Washington · EPA ID WAD988519708 | Cleaned up & deleted | <1 mi |
| Frontier Hard Chrome, Inc. Vancouver, Washington · EPA ID WAD053614988 | Cleaned up & deleted | 1.5 mi |
| Bonneville Power Administration Ross Complex (USDOE) Vancouver, Washington · EPA ID WA1891406349 | Cleaned up & deleted | 1.6 mi |
| Vancouver Water Station #4 Contamination Vancouver, Washington · EPA ID WAD988475158 | Cleaned up & deleted | 2.3 mi |
| Harbor Oil Portland, Oregon · EPA ID ORD071803985 | Cleaned up & deleted | 2.7 mi |
| Boomsnub/Airco Vancouver, Washington · EPA ID WAD009624453 | Active (final NPL) | 3.3 mi |
| ALCOA (Vancouver Smelter) Vancouver, Washington · EPA ID WAD009045279 | Cleaned up & deleted | 3.5 mi |
| Allied Plating, Inc. Portland, Oregon · EPA ID ORD009051442 | Cleaned up & deleted | 3.8 mi |
| McCormick & Baxter Creosoting Co. (Portland Plant) Portland, Oregon · EPA ID ORD009020603 | Active (final NPL) | 5.6 mi |
| Gould, Inc. Portland, Oregon · EPA ID ORD095003687 | Cleaned up & deleted | 6.4 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 98666
Who supplies drinking water to ZIP 98666?
City of Vancouver (EPA ID WA5391200), a groundwater (wells) system serving about 373,047 people.
Is there lead in Vancouver, WA tap water?
The utility’s latest 90th-percentile lead result (Jan 2021) was 2.2 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 Vancouver, WA 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 98666 had violations?
No health-based violations reported since 2016.
Are there Superfund sites near 98666?
The nearest active Superfund site is 3.3 miles away. Sites within 10 miles: Vancouver Water Station #1 Contamination (0.8 mi, Cleaned up & deleted); Frontier Hard Chrome, Inc. (1.5 mi, Cleaned up & deleted); Bonneville Power Administration Ross Complex (USDOE) (1.6 mi, Cleaned up & deleted).
Is radon a problem in Clark?
Clark is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.