Westech’s expertise in stormwater projects ranges from master planning for entire community systems to stormwater quality treatment for individual projects. Westech offers engineers with specific expertise with local regulatory requirements for most communities in Oregon and Southwest Washington.  These engineers also are well informed on state and federal stormwater regulatory agency requirements such as Oregon DEQ, Oregon Division of State Lands, US Army Corps of Engineers, and US National Marine Fisheries Service.  Over the years we have successfully assisted numerous clients with the process of navigating the complex stormwater regulatory environment that currently exists.  We strive to select the most economical stormwater flow control and treatment facilities while satisfying all applicable regulatory requirements.

Specific services we provide include the following:

  • Stormwater System Master Planning
  • Stormwater Permitting
  • Stormwater Conveyance System Design
  • Stormwater Modeling
  • Stormwater Detention
  • Stormwater Quality Treatment Facilities
  • Green Infrastructure Design
  • Infiltration System Design


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