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.
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.
Field laboratory
Markus Von Prause Ambient Water Quality Monitoring Lead mark.vonprause@ecy.wa.gov 206-305-8179