Protecting Oregon's Environment
Oregon State Seal
Oregon Department of Environmental Quality

Laboratory and Environmental Assessment

Watershed Assessment

Air Quality Index 
Air Quality Monitoring
LASAR Database
Guidance and Quality Assurance
Technical Reports
Volunteer Monitoring
Water Quality Index
Water Quality Monitoring

Water Quality Monitoring Reports, Assessment Tools and Sampling Methods 


Statewide Reports

Water Quality Status and Trends

Toxics Monitoring

Biological Monitoring

Water Quality Assessment

Regional Special Studies (arranged by publication date)

Total Maximum Daily Load

Beach Monitoring

Volunteer Monitoring

Groundwater Quality Reports

Assessment Tools for Analyzing Data

Biological Monitoring

Oregon Water Quality Index

Sampling and Analysis Methods



[print version]

For more information about DEQ's Laboratory and Environmental Assessment Program please email LEAP.

Oregon Department of Environmental Quality
Headquarters: 700 NE Multnomah Street, Suite 600, Portland, OR 97232
Phone: 503-229-5696 or toll free in Oregon 1-800-452-4011
Oregon Telecommunications Relay Service: 1-800-735-2900  FAX: 503-229-6124

The Oregon Department of Environmental Quality is a regulatory agency authorized to protect Oregon's environment by
the State of Oregon and the Environmental Protection Agency.

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