DEQ data are available for download from the WQP:

• Water quality data collected statewide by DEQ’s Surface Water Bureau.
• Data records dating back to 1992.
• Multiple data types including physiochemistry, benthic macroinvertebrates, fish, hydrology, bacteria, and habitat.
• Long-term monitoring projects including the Bear River, Portneuf River, Snake River, Clearwater River, Cascade Lake, and Payette Lake.
• Data from the Beneficial Use Reconnaissance Program.*
• Special projects such as quagga mussel invasive species response monitoring, E. coli monitoring of the South Fork Palouse River, and lake monitoring to assess reference conditions.
• DEQ may have data that are not currently available through the WQP. To access these records, please submit a public records request.

*Certain biological parameters, including but not limited to macroinvertebrate assemblage, fish species data, and some lab results, will be publicly available approximately one year post data collection due to QA/QC processes.