Lake Alert: Blue-green algae closes Lake Arnold


UPDATE: February 15, 2019 – Lake Alert for Lake Arnold has been lifted. Please resume all normal lake activities.

UPDATE: February 8, 2019 – Lake Alert Remains in Effect for Lake Arnold 

The City of Orlando has closed Lake Arnold until further notice.

A test was conducted on February 1 which revealed high levels of microsystins as a result of an algae bloom on the lake. The levels of those toxins in the water have been deemed unsafe by the City, which has advised residents to cease all water-contact activities.

Blue-green algae are always present in the water but when combined with warm water and excessive nutrients (served up by septic tanks, yard and pet waste, and fertilizers) can cause algae blooms.

Blooms of this type of algae can produce toxins that can pose a health concern.

The lake will be monitored until further notice.

Lake Arnold has had two previous blooms that we’ve reported on; in June 2018 and March 2017.

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