Confluence Environmental Company

Confluence Environmental Company delivers a variety of environmental, infrastructure, and development projects

We offer services in environmental science, project management, and regulatory strategy and compliance. Our team includes fish and wetland scientists, coastal and restoration engineers, cultural resources specialists, built and natural environment planners, and regulatory experts. We ensure that each project is staffed with an outstanding team that can successfully deliver strategic solutions. Read more about our services here.


January – Confluence has been certified as a Small Business Enterprise (SBE) by the Washington State Office of Minority and Women’s Business Enterprises. With this certification, we can now help agencies and prime consultants meet their DBE goals. For more information, see the “Search Certified Firm Directory” button on the OMWBE website.

Traci Sanderson is now a certified Professional Wetland Scientist. The certification, awarded by the Society of Wetland Scientists, identifies individuals qualified to assess and manage wetlands based on both educational and experience requirements. Congratulations, Traci!


December – In this season of giving, and out of gratitude toward our clients and colleagues, Confluence contributed to 14 nonprofit organizations that enhance our community. The following organizations were selected by our employees: Alternative Humane Society of Whatcom County, Everett Imagine Children’s Museum, Futurewise, KUOW, Long Live the Kings, Mary’s Place, Nooksack Salmon Enhancement Association, Northwest Center, Olympic Forest Coalition, Salish Sea Expeditions, PCC Farmland Trust, Seattle Aquarium, The Nature Conservancy, and Woodland Park Zoo. Best wishes to you and yours for a healthy and happy holiday season!

December – Confluence recently welcomed aboard Chris Soncarty as Senior Biologist/Regulatory Specialist. Chris has worked since 1995 as a fish biologist and regulatory specialist, conducting and managing a variety of infrastructure and restoration projects in freshwater, marine, and estuarine environments. He has extensive knowledge of NEPA, SEPA, and ESA, and has prepared environmental documentation for federally funded projects at the local, state and federal levels. With a scientific background in fisheries biology and habitat, his work focuses on ecological assessment and habitat restoration. He applies his expertise to aquatic restoration projects as well as infrastructure projects. He has completed permitting projects for various clients, including city and county governments, state and federal agencies, conservation districts, and private clients. Chris joins Dr. Kathy Ketteridge, PE, in our Bellingham office, and works throughout Washington. What is he doing when not on the job? “Snowboarding, fly fishing, mountain biking, and family time!” Read more about Chris here.

We are happy to announce several promotions among our staff:

  • Hans Hurn has been promoted to Project Biologist II. Hans joined Confluence in October 2015 as Project Biologist. Since then, Hans has demonstrated excellence in all facets of his work. Confluence recognizes Hans for the leadership he takes in fieldwork assignments, his dedication to client service, and his increasing project management skills. Great job, Hans!
  • Alyson Rae has been promoted to Project Biologist I. Alyson joined Confluence as an intern in fall 2015 and came onboard full time as Staff Biologist in April of 2016. Alyson has excelled in her fieldwork for wetland, water quality monitoring, and shoreline assessment projects. She is continually expanding her capabilities and always jumps in with a smile on her face! Way to go, Alyson!
  • Kathy Sitchin has been promoted to Marketing Manager. Kathy is integral to Confluence’s business development endeavors, managing all proposal delivery as well as marketing pursuits. She also manages our Website and social media presence and serves as Confluence’s lead technical editor. We couldn’t do it without you, Kathy!
  • Congratulations to all!