The Watershed Health Monitoring (WHM) program visits probabilistic (randomly-selected) sites and other hand-selected sites across Washington. We sample about 50 random sites within each of 7 Status and Trends Regions (STRs) during each round of sampling. Data in this file represent information collected during Round 1 probabulity sampling in the Upper Columbia STR (summer 2012) along with some other events from the region. Reported here are just a select few of the metrics. The full suite of habitat data is available from our web site: http://tinyurl.com/WatershedHealth. Macroinvertebrate community scores reported here are from this source: http://pugetsoundstreambenthos.org.
The primary goal of this study is to evaluate changes in several common water quality indicators in relation to implementation of pollution control measures and land use changes in the watershed. The resulting monitoring data will also be used to determine compliance with water quality standards and identify sources of nutrient and pathogen sources over the study period.