Stormwater Management
Stormwater Infiltration Solutions
Stormwater Management Quality & Flow Control Design
Stormwater Management Pollution Prevention Plans
Utility Designs
Sanitary Sewer, Potable Water and electrical Ductwork
Drainage & Hydraulic Reports
Specifications Review & Estimates
Grading & Stormwater Permit Acquisition Assistance

Bill is an expert with recent stormwater code revisions including the 2005 Stormwater Management Manual for Western Washington, City of Seattle 2009 Stormwater Code, and many local municipality requirements under the National Pollution Discharge Elimination System (NPDES) permit.

He has designed successful stormwater infiltration systems capable of infiltrating 100% of a 100-year year storm event, with no off-site runoff for both commercial and residential projects. He has designed 20-inch transmission water mains as well as 12” distribution water mains and sanitary sewers up to 54-inch diameter.

He is a recognized leader in environmental community for his work on construction of osprey nesting platforms in Port Gardner Bay, Everett and for his work in forest preservation.

Click HERE to download the Fundamental Cannons and Guidelines of Engineering.


William (Bill) Lider has performed engineering design and construction work in the Puget Sound area for over 31-years. He became a professional civil engineer in 1984 and a Certified Erosion and Sediment Control Lead (CESCL) in 1998. For the last 20-years he has specialized in stormwater design including water quality and flow control for large municipal projects. He is certified by WSDOT to prepare Hydraulic Reports and has prepared TIR’s for King County and Drainage Reports for Snohomish County.