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

Laboratory and Environmental Assessment

Water Quality Monitoring

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

In support of the Oregon Department of Environmental Quality mission statement of restoring and protecting Oregon's water, air and land, the Water Quality Monitoring program is currently involved in the following activities:

  • Collecting representative, valid environmental data through physical, chemical, and biological sampling and assessment.

  • Managing environmental data to ensure availability of accurate and complete data from agency programs and the general public.

  • Analyzing and interpreting water quality related data to produce reports which identify water quality conditions, identify threats to water quality, evaluate trends, and model proposed actions.

Water Quality Monitoring Programs

Technical Reports

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.

DEQ Web site privacy notice