Tracking and Monitoring
- Perennial Streams Assessment (PSA) Survey
The PSA (formally the California Monitoring and Assessment Program for Perennial Streams) is an ongoing, long-term statewide survey of the ecological condition of wadeable perennial streams and rivers throughout California. The PSA is funded by SWAMP and other partners, including the U.S. EPA and the Water Boards’ Nonpoint Source program. The PSA collects samples for biological indicators (benthic macroinvertebrates, algae) and chemical constituents (nutrients, major ions, etc.), and conducts habitat assessments (both for in-stream and riparian corridor conditions). In addition, PSA’s design is stratified by land use categories (agriculture, forested, urban, and other) to potentially associate biological conditions to land use stressors (pollutants). This association serves as a surrogate for nonpoint source loading (the amount of pollutant), and identifies key stressor associated with the key land use categories. The PSA has produced numerous reports and assessment tools.
- 8-Year PSA Report: Ecological Condition Assessments of California's Perennial Wadeable Streams (2000 through 2007): Novel use of probability surveys to assess the condition of streams draining agricultural, urban, and forested landscapes.
- Memoranda summarizing major findings from the SWAMP Perennial Streams Assessment:
- An Index of Biotic Integrity for Perennial Streams in California’s Central Valley
- Ecological Condition Assessments of California’s Perennial Streams. Technical Report
- Development of a Benthic Index of Biotic Integrity for Wadeable Streams in Northern Coastal California and its Application to Regional 305b Assessment
- Probabilistic Assessment of the Biotic Condition of Perennial Streams and Rivers in California. Technical Report
Fact Sheets, Posters, and Newsletters
- California Water Quality Monitoring Collaboration Network Webinars