SPAWNERS has been monitoring water quality in San Pablo Creek and its tributaries since 2009. Our Water Quality Monitoring intern Tessa visits our sites once a month to record water temperature, dissolved oxygen content, nutrients, and more. Explore the information below to lean more about what we measure, and see all our data on The Watershed Project's website: http://thewatershedproject.org/our-programs/healthy-watersheds/, Citizen Monitoring tab.