Island County contains 238 EPA-regulated facilities, 23 of which are currently flagged for significant noncompliance. The county also hosts 1 Superfund sites and 1 TRI chemical reporters. EPA has assessed $10.8k in lifetime penalties and TRI reporters disclosed roughly 3.0k lb of on-site releases. That facility count is well above the Washington state average of 152 per county.
| Site | City | Status |
|---|---|---|
| Naval Air Station Whidbey Island Ault Field | Whidbey Island | Construction complete |
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Us Navy Whidbey Ou3 | Oak Harbor | 3.0k | Sig. violation |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Nichols Brothers Boat Builders | Freeland | $10.8k | 2025-11-06 |
| Hillside | Oak Harbor | $0 | 2024-03-07 |
| Central Whidbey S And G | Coupeville | $0 | 2023-09-20 |
| South Whidbey Aquatic Recreation Center | Langley | $0 | |
| Danielson Farms | Camano Island | $0 | 2024-10-25 |
| Wa Dot Whidbey Island | Whidbey Island | $0 | |
| Eds Construction | Coupeville | $0 | |
| Concrete Norwest Taylor Rd | Oak Harbor | $0 | 2022-06-14 |
| Camano Vista Water District Facility | Camano Island | $0 | |
| Oak Harbor Clean Water Facility | Oak Harbor | $0 | 2024-03-06 |
| Marin Woods | Oak Harbor | $0 | 2023-11-09 |
| Christians Arco Towing And Recycling | Oak Harbor | $0 | 2018-12-12 |
| Fire Station 82 Swantown Fire Station | Oak Harbor | $0 | |
| Us Navy Whidbey Ou3 | Oak Harbor | $0 | 2025-08-15 |
| Island Cnty Pw Lagoon Point Pit | Whidbey Island | $0 | |
| Maple Hill Park Water System | Oak Harbor | $0 | |
| Langley Improvement Project Lip | Langley | $0 | |
| Landshapers Llc | Freeland | $0 | 2023-09-19 |
| Island Cnty Pw Henni Pit | Whidbey Island | $0 | |
| Shaan Ridge | Oak Harbor | $0 | 2024-07-15 |
| Hillside Development Center | Oak Harbor | $0 | |
| Lakeside Industries Oak Harbor 053 | Oak Harbor | $0 | |
| Bayview Vista | Oak Harbor | $0 |