Stormwater Services

Skillings’ experience spans decades. Our engineers have been directly involved in the science of stormwater and the Best Management Practices that have changed as the understanding of stormwater has evolved. Our senior professional engineers have worked directly with local agencies, and the Washington State Department of Ecology in development of management practices to meet the hydraulic and environmental demands created by stormwater runoff. Services that Skillings provides include:


– Hydrologic/ Hydraulic Modeling
– Comprehensive Stormwater Planning
– Hydrologic and Hydraulic Modeling
– Erosion and Sedimentation Control Plans
– Stormwater Retention / Detention Design
– Stormwater Treatment Best Management Practices (BMPs)
– Stormwater Pump Stations

– Stormwater Marine Outfalls Modeling and Design
– Storm Water Pollution Prevention Plans (SWPPP)
– Certified Erosion and Sedimentation Control Lead (CESCL)
– Certified WSDOT Highway Runoff Manual Training
– Stormwater Sampling
Flood Plain Mapping and Assessments
Flood Plain Storage Design / Mitigation Banking
– Environmental Permitting