We monitor and collect samples from several locations throughout the McKenzie Watershed to provide early warning of when cyanobacterial harmful algal blooms are producing cyanotoxins. This monitoring allows us to share potential recreational exposure to these cyanotoxins in our reservoirs and river. Learn more about EWEB's cyanotoxin monitoring program

Health Advisory Levels for Recreational Water Activities

  • Cylindrospermopsin: 15ppb
  • Microcystin: 8ppb
  • Anatoxin-a: 15 ppb

The analytical results shared on this map represent conditions at specific locations on the day and time of sampling. These results do not represent the entire waterbody and should be used for general purposes only.