Blue Green algae blooms and positive test results for cyanotoxins affecting Salem’s drinking water have been in the news recently. Some Sunrise customers have expressed concern about the likelihood of similar issues arising with our drinking water. There have been no Blue Green algae blooms detected in our source water, the Clackamas River. The North Clackamas County Water Commission has monitored algae blooms and tested for cyanotoxins for more than a decade and has never had a positive test result in the treated drinking water.
Blue Green algae proliferates in slow, warm water, such as lakes and ponds and is concentrated in the upper strata of the water’s surface. Water entering the Clackamas River from snowmelt and spring fed creeks is substantially too cold to support the growth of algae. Read more about how Sunrise Water Authority and other drinking water providers on the Clackamas River are working together to address this risk.