Pacific Northwest Projects:

Assessments and Analyses

Watershed Assessments and Analyses Conducted in the Pacific Northwest

E&S Environmental conducts watershed assessments and analyses following both state and federal guidelines. E&S has produced numerous watershed assessments for watershed councils following Oregon Watershed Enhancement Board (OWEB) methods, as well as watershed analyses that conform to federal watershed analysis guidelines. In addition, we have completed many assessments of watershed conditions, including water quality, wetlands, and historical watershed conditions.

We completed a prototype watershed analysis of the Trask watershed for the Oregon Department of Forestry and U.S. Bureau of Land Management, following both OWEB and federal protocols.

Click here to see a map of some watershed assessments completed by E&S Environmental Chemistry.


Highlighted below are some of our watershed assessments we have completed in Oregon:

  • Trask watershed
  • North Santiam watershed
  • South Santiam watershed
  • Miami watershed
  • Wilson watershed
  • Necanicum watershed
  • Skipanon watershed
  • Youngs Bay watershed
  • Nicolai-Wickiup watershed
  • Umpqua watersheds (four assessments)
  • Gordon Creek watershed
  • Upper Sprague watershed

Below are listed some clients for whom E&S Environmental Chemistry has conducted watershed studies:

  • Bureau of Land Management
  • Clark County, WA
  • Clatsop County Watershed Councils
  • Mary's River Watershed Council
  • Necanicum Watershed Council
  • North Santiam Watershed Council
  • South Santiam Watershed Council
  • Oregon Department of Environmental Quality
  • Oregon Department of Forestry
  • Oregon Division of State Lands
  • Portland General Electric
  • Tillamook Bay National Estuary Project
  • Tillamook Estuaries Partnership
  • U.S. Environmental Protection Agency