The baseline monitoring program was started back in 2002 to collect baseline data on a number of parameters in the McKenzie River so that EWEB would have an idea of current water quality and how it may (or may not) be changing over time. Baseline monitoring is currently conducted on a quarterly basis at 16 sites throughout the watershed (see map below). Samples are analyzed for the following parameters: temperature, pH, turbidity, dissolved oxygen, conductivity, total organic carbon, total suspended solids, biochemical and chemical oxygen demand, pheophytin and chorophyll-a, nutrients, metals, and bacteria.
In 2010, EWEB completed an analysis of baseline data collected from 2000-2009. The report may be accessed here.