River & stream data quality assurance
We follow strict protocols to ensure our freshwater quality data are credible and defensible. We calibrate equipment frequently and test duplicate samples to eliminate errors.
Monitoring plan updated for 2023
Our 2023 quality-assurance monitoring plan describes our most up-to-date study methods, including data-quality objectives, quality-control systems, field and laboratory methods, and data-management procedures.
We follow strict data-gathering protocols
Field laboratory
- River and stream – monitoring plans lists all Quality Assurance Monitoring Plans (QAMPs) and addenda we have published since 2009. These plans define our long-term ambient monitoring program.
- Ambient freshwater biological and water quality monitoring standard operating procedures lists all of our published SOPs for this long-term program. These describe our basic processes for collecting and analyzing water samples and data.
Quality is assured by duplicate samples
Related links
Contact information
Markus Von Prause
Ambient Water Quality Monitoring Lead
mark.vonprause@ecy.wa.gov
206-305-8179