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.
• Analyze and interpret 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

• Overview of DEQ Water Quality Monitoring Activities in Oregon PDF
• Groundwater Monitoring
• Long-term Large River Monitoring
• Regional Probabilistic Stream Assessment
• The Oregon Beach Monitoring Program
• Total Maximum Daily Load (TMDL)
• Toxics Monitoring
• Volunteer Monitoring
• Water Quality Monitoring Technical Reports
• Waste Water Monitoring
• Willamette Basin Mercury Study 
• Willamette Basin Rivers and Streams Assessment NEW