What environmental databases are included?

This page aggregates data from eight EPA databases: Safe Drinking Water (SDWIS), Superfund/NPL sites, Toxic Release Inventory (TRI), Air Quality Index (AQI), Leaking Underground Storage Tanks (LUST), NPDES water discharge permits, RCRA hazardous waste, and Brownfields.

What does the Air Quality Index (AQI) mean?

AQI is measured on a scale from 0 to 500. Values under 50 are 'Good,' 51-100 is 'Moderate,' and above 100 is 'Unhealthy for Sensitive Groups.' AQI is measured at the county level since air quality monitoring stations are sparse. Your town shares its county's AQI reading.

What is a Superfund site?

A Superfund site is a location contaminated by hazardous waste that has been placed on the EPA's National Priorities List (NPL) for long-term cleanup. These sites pose serious risks to human health and the environment. Cleanup can take decades and cost hundreds of millions of dollars.

SeaTac, WA Water Quality, EPA Sites & Air Quality Data

Environmental Reporti

Air Qualityi

43Good

Air Quality — King County (2025)i

AQS

The Air Quality Index measures how clean or polluted the air is on a given day. AQI is reported at the county level. A score of 0–50 is considered good; 51–100 is moderate; above 100 may be unhealthy for sensitive groups.

Good

Median AQI

050100150200300

max 90

PM2.5 Daysi

138

Ozone Daysi

EV Charging & Alternative Fuel Stationsi

AFDC

Publicly listed alternative fuel and EV charging stations within the municipality. Data from the U.S. Department of Energy. "Open" stations are currently available for use; "Planned" stations are approved but not yet operational.

Total Stationsi

EV Stationsi

Level 2 Portsi

DC Fast Portsi

Blink NetworkChargePoint Network

Abbey Ridge Apartments3035 S 204th St.Electric2 L2Blink Network

CI&S COUNTRY INN #13100 S 192nd StElectric2 L2ChargePoint Network

CI&S COUNTRY INN #23100 S 192nd StElectric2 L2ChargePoint Network

CITY OF SEATAC CITY HALL 14800 S 188th StElectric2 L2ChargePoint Network

CITY OF SEATAC CITY HALL 24800 S 188th StElectric2 L2ChargePoint Network

CITY OF SEATAC CITY HALL 34800 S 188th StElectric2 L2ChargePoint Network

CITY OF SEATAC CITY HALL 44800 S 188th STElectric2 L2ChargePoint Network

CITY OF SEATAC CITY HALL 64800 S 188th StElectric2 L2ChargePoint Network

DC CORRIDOR WALLYPARKDC218613 International BlvdElectric1 DCChargePoint Network

PUBLIC CHARGING ANGLE LAKE #12702 S 200th StElectric1 L2ChargePoint Network

PUBLIC CHARGING ANGLE LAKE #22702 S 200th StElectric1 L2ChargePoint Network

PUBLIC CHARGING ANGLE LAKE #32702 S 200th StElectric1 L2ChargePoint Network

PUBLIC CHARGING ANGLE LAKE #42702 S 200th StElectric1 L2ChargePoint Network

Sea Tac Office Center18000 International BoulevardElectric4 L2Blink Network