| Location ID | Location Name | Type | Latitude | Longitude | MaxDepth | Last Year Collected |
| HLM001 | Holmes Harbor - Honeymoon Bay | Rotating | 48.0633356189841 | -122.531715037019 | 52 m | 2008 |
| PNN001 | Penn Cove Park Whidbey Island | Rotating | 48.2316756113714 | -122.67501510191 | 29 m | 2008 |
| PSS010 | Whidbey Basin: Possession Sound - Added post-9/11 for TFR | Rotating | 47.9650056438249 | -122.263014969568 | 82 m | 2004 |
| PSS019 | Possession Sound - Gedney Island | Core | 48.0116756421225 | -122.300014987025 | 97 m | 2018 |
| SAR003 | Saratoga Passage - East Point | Core | 48.1083356258985 | -122.490015041509 | 144 m | 2018 |
| SKG003 | Skagit Bay - Str. Point Red Buoy | Core | 48.296675635523 | -122.488315088362 | 21 m | 2018 |
| SUZ001 | Port Susan - Kayak Point | Rotating | 48.1350056406266 | -122.370015028857 | 9 m | 2006 |