Welcome to CSI's Water Quality Database

All the data in this free, public archive are derived from stream and lake samples collected by groups of local volunteers who partner with the Community Science Institute (CSI) and our nationally certified lab to monitor community water resources. Our local monitoring partnerships produce scientifically reliable, long-term data sets that fill very large voids left by state surveillance of streams and lakes under the Clean Water Act. Our goal is to create a shared understanding of water quality that contributes to the development of effective and sustainable strategies for managing water resources.

Stream and Lake Monitoring
2002 - Ongoing
Sunday June 27, 2021
Synoptic event conducted on monitoring set Milliken Creek
Wednesday June 02, 2021
Synoptic event conducted on monitoring set Yawger Creek
Wednesday June 02, 2021
Synoptic event conducted on monitoring set Great Gully Creek
Wednesday June 02, 2021
Synoptic event conducted on monitoring set Direct Streams
Private Groundwater Well Baselines
2009 - 2014
Wednesday November 13, 2013
Testing event conducted on grid square 58732
Wednesday November 13, 2013
Testing event conducted on grid square 59144
Wednesday November 13, 2013
Testing event conducted on grid square 57097
Wednesday November 13, 2013
Testing event conducted on grid square 56691