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Review government records associated with SeaTac, Washington.
Toxin Scout is in beta. Please verify important findings with the linked sources.
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Preparing SeaTac environmental records...
Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for SeaTac, WA from EPA SDWIS.
Seattle Public Utilities
Active health-based drinking-water issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 1,161,961 people
Renton City of
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 108,091 people
Auburn City of
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 107,655 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Mar 2023 to May 2025.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not SeaTac drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Miller Creek-Frontal East Passage
Reported: Nov 2026
Health-relevant causes: Dioxins, Mercury, Metals (other Than Mercury), Pathogens, Pesticides, Polychlorinated Biphenyls (pcbs), Toxic Organics
Affected uses: Ecological, Fishconsumption, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
King County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designates an area as nonattainment when air quality does not meet federal health-based standards (NAAQS) for a specific pollutant.
Maintenance areas
Previously nonattainment; currently meeting the standard and monitored under an EPA maintenance plan.
Seattle-Tacoma Area
CO · Carbon Monoxide (1971 Standard)
Classification: Moderate > 12.7ppm
Original designation: Nov 1990
Current design value: 0.9 ppm (2023-2025)
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Bremerton-Spruce Ave
Annual mean: 4.4 Micrograms/cubic meter (LC)
Observation year: 2025
Issaquah - Lake Sammamish (Wiithin Lake Sammamish State Park)
Annual mean: 0.036 Parts per million
Observation year: 2025
Kent-S 236Th St
Annual mean: 5.1 Micrograms/cubic meter (LC)
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Exotic Metals Forming Co
Reported: 2024
Fatigue Technology Fti
Reported: 2024
EPA records for current, proposed and formerly listed Superfund sites on the National Priorities List (NPL).
Open data source: Search EPA ECHOEPA FRS Registry ID 110060639288
Reported: Dec 2015
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO2 sites with active cleanup or investigation status
14043 24th Ave S, Sea Tac
Reported: Feb 2026
Near S 200th Street And 13th Avenue S, Sea Tac
Reported: Feb 2026
State environmental agencies maintain cleanup site databases that include state Superfund, voluntary cleanup, and brownfield remediation programs. These programs track additional sites beyond those on the federal NPL.
1 site with active cleanup or investigation
20008 International Blvd, Seatac
1.5 miles away · King County
Reported: Nov 2026
Data from EPA ECHO
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
Release reports
Reported: Dec 2021
Reported: Dec 2021
Data from EPA UST Finder
Reviewed: reporting year 2024
Formerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSSites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
Recently updated active/intermittent sites (1)
Data from MSHA
King County, WA
EPA Radon Zone Map (June 2024 release)
King County is EPA Radon Zone 3 (low potential). EPA defines Zone 3 counties as having predicted average indoor screening levels below 2 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
No FEMA flood-zone records shown for this report.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
King County, WashingtonPop. 2,266,789
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 5,119 | 6,333 | 7,972 |
| Poor or Fair Health | 11.5% | 13.8% | 14.2% |
| Poor Physical Health Days | 3.0 | 3.5 | 3.3 |
| Poor Mental Health Days | 4.9 | 5.2 | 4.8 |
| Adult Smoking | 9.0% | 10.8% | 15.0% |
| Adult Obesity | 23.3% | 28.7% | 34.0% |
| Air Pollution - Particulate Matter | 8.3 | 7.1 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 7.1% | 7.9% | 9.6% |
| Life Expectancy | 81.6 | 79.4 | 77.6 |
EPA testing found PFAS in water samples from the City of Renton. Results dated Mar 23, 2023 include PFBS at 0.003 micrograms per liter.
EPA testing found PFAS in water samples from the City of Auburn. Results dated Nov 6, 2024 to May 19, 2025 include PFBS at 0.0039 to 0.0041 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 2 violations for Seattle Public Utilities.
The EPA drinking water records available here list no violations for the City of Renton.
EPA drinking water records on this page list 2 violations for the City of Auburn.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for SeaTac.
The monitoring station at Bremerton-Spruce Ave recorded an annual average of 4.4 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The monitoring station at Issaquah-Lake Sammamish (Wiithin Lake Sammamish State Park) recorded an annual average of 0.036 Parts per million for ozone in 2025.
The monitoring station at Kent-S 236th St recorded an annual average of 5.1 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
Download 2025 EPA annual monitor dataCurrent air quality on AirNow
The radon data for SeaTac covers King County. EPA places this area in Zone 3, with a predicted average indoor radon screening level below 2 picocuries per liter.
This city report shows 1 Superfund site: Kent Highlands Landfill.
This city report shows 2 brownfield sites: 14043 24th Ave S; S 200th Street and 13th Avenue S.
The county data for SeaTac reports a life expectancy of 81.6 years in King County, Washington.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for SeaTac reports 5,119 years of life lost to deaths before age 75 per 100,000 residents in King County, Washington. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for SeaTac lists fine-particle pollution (PM2.5) at 8.3 micrograms per cubic meter in King County, Washington.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.