EPA-regulated facilities in King County, WA
There are 12,113 EPA-regulated facilities inside King County, Washington. The most common kinds are hazardous waste (7,412), water discharge (4,957), chemical (rmp/tri) (337). 449 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 826 have a violation on record. Penalties over the last five years total $36M across 73 sites.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 7,412 |
| Treatment, storage or disposal | 7 |
| Large quantity generators | 152 |
| Small quantity generators | 981 |
| Transporters | 20 |
| Chemical (RMP/TRI) | 337 |
| Superfund | 38 |
| Air emissions | 292 |
| Major sources | 22 |
| Synthetic minor sources | 67 |
| Minor sources | 98 |
| Water discharge | 4,957 |
| Major permits | 14 |
| Minor permits | 4,030 |
| Drinking water systems | 236 |
| Greenhouse gas reporters | 12 |
| Data centers | 19 |
| Scrap yards | 3 |
| Recycling centers | 30 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
In significant noncompliance
The EPA's designation for its most serious or persistent violations, as of the latest data.
- UPS TUKWILA Significant noncompliance · $5.3M in penalties
- CLEAN HARBORS Significant noncompliance · $390k in penalties
- KING CNTY ALKI STORMWATER PLANT Significant noncompliance · $222k in penalties
- METRO WEST POINT Significant noncompliance · $175k in penalties
- KING COUNTY PUBLIC WORKS ROADS DIV Significant noncompliance · $39k in penalties
- KENWORTH TRUCK CO RENTON Significant noncompliance · $27k in penalties
- WA UW MEDICAL CTR Significant noncompliance · $15k in penalties
- EARLINGTON VILLAGE Significant noncompliance · $4k in penalties
- BOEING NORTH BOEING FIELD Significant noncompliance · $2k in penalties
- MEADOWBROOK IMPROVEMENTS Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- UPS BOEING FIELD 2 $5.3M in penalties
- UPS REDMOND $5.3M in penalties
- UPS SEATTLE HUB $5.3M in penalties
- K2 SPORTS $5.3M in penalties
- COSTCO WHOLESALE CORP ISSAQUAH $3.1M in penalties
Superfund sites
- WEYERHAEUSER SNOQUALIMIE MILL SITE
- QUEEN CITY FARMS
- EAST RENTON DRUM SITE
- MAY CREEK LANDFILL
- USDA FS MT. BAKER-SNOQUALMIE NF: RAINY MINE & MILL SITE
- GUNSHY MANOR
- US DOE BPA COVINGTON SUBSTATION
- PACIFIC CAR AND FOUNDRY CO
- QUENDALL TERMINALS
- WA ARMY NATIONAL GUARD RED
Data centers
- BOEING COMPANY BELLEVUE
- EMC CORP
- Intergate Seattle East Building 1
- Intergate Seattle East Building 4
- Intergate Seattle East Building 5
- SABEY DATACENTER
- Intergate Seattle East Building 3
- Intergate Seattle East Building 2
- Intergate Seattle West Building A
- Intergate Seattle West Building B
Towns in King County
- Seattle
- Bellevue
- Kent
- Renton
- Federal Way
- Kirkland
- Auburn
- Redmond
- Sammamish
- Shoreline
- Burien
- Bothell
- Issaquah
- Des Moines
- SeaTac
- Maple Valley
- Mercer Island
- Kenmore
- Union Hill-Novelty Hill
- Cottage Lake
Bordering counties
Reading these numbers
These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.