Naval Air Station, Whidbey Island (Seaplane Base)
This site has been deleted from the EPA Superfund National Priorities List — EPA's classification means construction-complete cleanup objectives were achieved, though monitoring may continue. Most-cited contaminant of concern: Arsenic.
1 Mi Ne Of E Pioneer Way & Torpedo Intsc, Oak Harbor, Washington · ZIP 98278 · EPA ID WA6170090058
Listing-date and cleanup-phase enrichment from EPA's per-site SEMS profile is queued for a follow-up ingest pass. Until then, this section will populate from EPA's published timeline data.
Notable Signals
No notable signals at this Superfund site for the current ingest. Cleanup-phase and SEMS-action flags are deferred to a follow-up engineering pass.
What's In This Site
Each row pairs a contaminant with the medium it was found in (the exposure pathway). Hover any named contaminant for an agency-cited health-risk summary. Cited count = number of SEMS decision records (RODs and related) that name the pair.
Groundwater Systems Serving Communities Within 3 Miles
The 24 systems below draw on groundwater (or mixed sources) and serve communities whose centroid sits within 3 miles of this site. Distance is to the served-city centroid — SDWIS does not expose individual wellhead locations, so this is a proximity screen, not a wellhead-impact assessment.
| Water system | Serves | Distance | Population served | Source | Status |
|---|---|---|---|---|---|
| Bayview Estates Water Company Private | Oak Harbor | 0.8 mi | 227 | In compliance | |
| Bon Air Community Club Inc. Private | Oak Harbor | 0.8 mi | 160 | In compliance | |
| Bonnie View Water Private | Oak Harbor | 0.8 mi | 50 | UNRESOLVED | |
| Forest Hills Park Community Private | Oak Harbor | 0.8 mi | 54 | In compliance | |
| Campo Hacienda Private | Oak Harbor | 0.8 mi | 123 | UNRESOLVED | |
| Lyon Rd Community Association Private | Oak Harbor | 0.8 mi | 50 | UNRESOLVED | |
| San Juan Estates Water Association Private | Oak Harbor | 0.8 mi | 36 | In compliance | |
| Dugualla Community Inc Private | Oak Harbor | 0.8 mi | 459 | UNRESOLVED | |
| Little Valley Apts. Private | Oak Harbor | 0.8 mi | 30 | In compliance | |
| Evergreen Valley View Water System Private | Oak Harbor | 0.8 mi | 40 | In compliance | |
| Faranda Water Associaton Private | Oak Harbor | 0.8 mi | 28 | UNRESOLVED | |
| Frostad Farms Water Assn Private | Oak Harbor | 0.8 mi | 25 | In compliance | |
| Bayview Meadows Water System Private | Oak Harbor | 0.8 mi | 34 | UNRESOLVED | |
| Highland Trace Water Co Inc Private | Oak Harbor | 0.8 mi | 62 | In compliance | |
| Suburban Hills Community Assoc Private | Oak Harbor | 0.8 mi | 46 | In compliance | |
| Pattons Retreat Water Assn Private | Oak Harbor | 0.8 mi | 90 | UNRESOLVED | |
| Penn Cove Water And Sewer District Municipal | Oak Harbor | 0.8 mi | 460 | UNRESOLVED | |
| Rolling Hills-Glencairn Private | Oak Harbor | 0.8 mi | 872 | UNRESOLVED | |
| Scenic Heights W A Inc Private | Oak Harbor | 0.8 mi | 78 | UNRESOLVED | |
| Sunrise Hills Community W S Private | Oak Harbor | 0.8 mi | 186 | In compliance | |
| Waterloo Acres Community Water Sys Private | Oak Harbor | 0.8 mi | 125 | UNRESOLVED | |
| Westview Community Association Private | Oak Harbor | 0.8 mi | 43 | UNRESOLVED | |
| Timaru Community Water Association Private | Oak Harbor | 0.8 mi | 27 | UNRESOLVED | |
| Koontz Ranch Water System Private | Oak Harbor | 0.8 mi | 30 | UNRESOLVED |
Methodology: served-city centroid (TIGER 2020) is used as the PWS coordinate. Source-water classification from SDWIS primary_source_code; only groundwater and mixed-source systems are queried. Click any system above for its full SDWIS profile.
Who Lives Near This Site
Within 1 mile of this site (2 Census block groups, population-weighted demographics): a population of 3,597. Why we surface this →
Low-income
People of color
Under age 5
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 1-mile buffer around this site (from USEPA-clone/EJAM-open blockgroupstats). NPL site proximity contributes to the national EJ pattern; indicator-level percentile and disparity scores are surfaced on the county page and the state page.
Source. EPA Superfund Enterprise Management System (SEMS) · retrieved 2026-05-07. SEMS is a federal public-domain dataset under 17 USC §105.
What this is not. We report EPA's published Superfund record — site listing, status, and contaminants of concern as named in EPA's decision documents. We do not perform site visits, independent air or water sampling, or current-state health-risk assessment. NPL listing reflects EPA's Hazard Ranking Score at a point in time; it does not by itself describe present-day exposure.