Learning gathers knowledge; wisdom applies it.

Sean Hanrahan is an environmental engineer and project manager for multi-disciplinary engineering design and permitting projects and ongoing environmental compliance at industrial and government facilities. Sean’s expertise includes stormwater management and treatment, spill control and containment, wastewater treatment processes, erosion and sediment control, air pollution control, and environmental/construction permitting.

Environmental Compliance, Permitting, Stormwater Management, Wastewater Treatment

Registered Professional Engineer: Oregon, Washington
Certified Erosion and Sediment Control Lead: Washington

Applying broad knowledge of environmental issues to engineering projects and facility operations.