We offer engineering and environmental services for sanitary sewer projects including monitoring and modeling to support comprehensive planning. Our engineers provide a range of services from flow monitoring and modeling of sanitary sewer systems, to comprehensive planning and design of conveyance systems. Our conveyance experience includes: service area planning; system evaluation and modeling; I/I studies; and design of gravity sewers, pumping stations, force mains and related hydraulic structures.

Joining our team of engineers are planners and scientists who provide the permitting, environmental impact assessment, and mitigation expertise required for wastewater projects to meet all regulatory requirements including the Endangered Species Act.

Key Projects

• SR 900 Improvements from Newport Way NW to Interstate 90 Stormwater Conveyance Design – Washington State Department of Transportation
• Soos Creek Conveyance System Improvements Planning – King County
• Brookside Creek Stormwater Conveyance Outfall Retrofit Design – City of Shoreline
• Brightwater Wastewater Treatment Plant Siting and Conveyance Development – King County
• Eastside Interceptor Section 1 Capacity Upgrade – King County