Meridian Environmental Provides Environmental Science and Regulatory Compliance Services

DJ Warren & Associates are now part of the Meridian Team.

Meridian Environmental, Inc. is a small employee-owned consulting firm located in Seattle, Washington with satellite offices in Oregon, providing expertise in aquatic, wetland and terrestrial ecology, regulatory compliance and permitting. Our key staff have worked together for over 20 years, helping clients find cost-effective solutions to complex environmental challenges.

We combine the experience of highly qualified resource specialists, each skilled in their own field and knowledgeable of the ecological relationships that exist between them. With this approach, Meridian has developed a long track record of successfully completing large projects with a small team, resulting in efficiency and cost savings to our clients.

Meridian is certified as a Federal small business according to the U.S. Small Business Administration. We are also certified as a Small Contractor or Supplier in King County. With these certifications, Meridian can contribute to meeting small business participation goals for clients who may require it.

Recent Awards

Meridian led the hydraulic and biological evaluation of the Soda Springs fish passage facilities (upstream fish ladder and downstream fish screens) at PacifiCorp's North Umpqua Project. This work was honored as the 2017 Distinguished Project by the Fisheries Engineering and Science Committee of the ASCE and AFS for fish passage improvements that modified hydraulics based on fish behavior trials.

Meridian participated in the Mukilteo Multimodal Transportation Project, providing both a SCUBA-based crab survey and water quality training. The Washington State Department of Transportation recognized the Mukilteo Ferry Terminal Project for a 2016 Environmental Excellence Award. The award was given for improving marine habitat using innovative methods during the Tank Farm Pier demolition and dredging.

As a component of relicensing of the Jackson Hydroelectric Project, Meridian analyzed the components of reintroducing anadromous salmonids to six miles of additional habitat in the Sultan River Basin. This project was honored with the National Hydropower Association's 2017 Outstanding Stewards of America's Waters award. Within weeks of the project's completion, coho salmon were detected in the newly available habitat for the first time in nearly 100 years.