Over the last few years, the Cottage Grove area has developed a growing knowledge of and association with blue-green algae due to blooms of the potentially toxic microorganisms in Dorena Reservoir and the health advisories that follow.
The scenario was no different this year, when warm late-summer temperatures combined with stagnant water in the reservoir to produce high levels of algae on the lake’s shoreline, prompting the Army Corps of Engineers to send water samples to the Oregon Health Authority for testing. In turn, the OHA issued an advisory warning people and pets to avoid contact with lake water or spray and to take care when consuming fish caught at Dorena. The advisories have an understandably detrimental effect on recreation in the reservoir and are typically lifted when cooler temperatures prevail. For the complete article see the 11-06-2013 issue.
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