This report covers data collected on Douglas, Munro, Lancaster, and Paradise lakes. Trained volunteers monitor water quality at the deepest locations of each of these lakes. Efforts by these dedicated volunteers have produced results: long-term Secchi disc and chlorophyll-a data that allow Watershed Council staff to assess water quality and examine changes over time. This report contains data on pH, dissolved oxygen levels, conductivity, nutrients, total phosphorus, trophic status index, chlorophyll-a, and Secchi disk.