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Algae bloom in Diamond Lake
August 10, 2001
"WATER QUALITY ALERT" from the US Forest Service - Department Of Agriculture
Diamond Lake is currently experiencing an unusually dense algae bloom, a condition common in warm weather when algae populations rapidly increase due to sunshine and abundant nutrients. Typically, one of the blue-green algae which is present in Diamond Lake is Anabaena flos-aquae. Under certain conditions, Anabaena can produce toxins that are harmful to humans and animals.
The Forest Service currently has no indications that any toxins have been produced by the Anabaena algae at Diamond Lake. Test samples have been taken and laboratory results are due in a few days. The Forest Service will continue to work with DEQ and health agencies to monitor the water quality in Diamond Lake.
This public health advisory is being released as a result of advisement from the Oregon Health Division and the Douglas County Health & Social Services Department regarding possible health risk to the public and recommended precautions until test results are received. Exposure to toxin by drinking the water or skin contact may be harmful.
- Avoid swallowing lake water containing these algae.
- Avoid skin contact with the water especially if bright green algae are present in the area.
- Pet owners should prevent animal access to the water.
Anyone who may have ingested the lake water during swimming activity and exhibiting symptoms which could include skin irritation or rash, diarrhea, nausea, cramps or general tiredness, sensations of numbness, dizziness, tingling and fainting should contact their physician.
Drinking water from wells in the area should not be affected and fish caught in the lake can be safely eaten.
For further information regarding this advisory, contact Brenda Woodard, US Forest Service at (541) 672-6601 or David Bussen, Douglas County Health & Social Services at (541) 440-3571.
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