From Salish Sea Wiki
City of Marysville in Snohomish County. The headwaters of the creek include a large number of agricultural ditches, part of historical wetland complexes, and drains through the Tulalip Tribes reservation, finally into to the lower reaches of the Snohomish Estuary.
- Adopt-a-Stream Foundation has been active in the watershed and in the adjacent Allen Creek Watershed
- Tulalip Tribes have been active in the watershed both developing restoration projects, business developments, and mitigation banking efforts (See:File:Tulalip Tribes et al 2009 quilceda in lieu fee program.pdf)
- The Snohomish Farm Bureau has advocated for modification of Edgecomb Creek a headwater tributary of the Quilceda (File:SFB 2019 edgecomb creek dredging.pdf)
- Quilceda creek was lumped with Allen Creek for planning in the City of Marysville Management Plan (File:City of Marysville 1999 allen quilceda management plan.pdf)
- The Allen/Quilceda Watershed Action Team is staffed by City of Marysville. https://marysvillewa.gov/318/AllenQuilceda-Watershed-Action-Team
- City of Marysville developed a concept for Edgecomb Creek described in File:Otak 2009 edgecomb creek relocation study.pdf