Devils Lake Advisory for toxic cyanobacteria lifted (9/6/24)
Oregon Health Authority (OHA) has lifted the cyanotoxin advisory for Devils Lake for humans. Water monitoring confirmed that the level of cyanotoxins in Devils Lake are below the recreational guideline values for people. However, levels detected are still above the OHA’s educational guide values for dogs, and owners should keep their pets away from these areas.
More info issued by OHA: https://content.govdelivery.com/accounts/ORHA/bulletins/3b38f01
Cyanobacteria are natural bacteria that live in water. They are not really algae! Blooms can be bright green or blue-green and often look like scum or paint on the water.
Devils Lake Water Improvement District
Devils Lake in Lincoln City, Oregon is a naturally shallow, coastal lake. It is uniquely placed in the world sitting on the Pacific coast edge of the North American Continent, intersecting the 45th parallel, the mark half way between the equator and the North Pole. Devils Lake is managed by the Devils Lake Water Improvement District.
Devils Lake Submerged Aquatic Vegetation Update
As many lake residents may recall, grass carp were once used to control the overgrowth of submerged aquatic vegetation (SAV) in Devils Lake. However, most if not all of the sterile planted grass carp have died since the latest planting in 1993. Current State regulations prevent the re-introduction of these fish as a biological control in Devils Lake. Recent monitoring suggests some SAV regrowth has begun, primarily in shallower areas where sunlight reaches the bottom of the lake. DLWID is currently working on an SAV plan which will outline options to manage submerged aquatic plants in the greater lake area. In addition, DLWID will be posting an updated Aquatic Plant Survey later this fall which will re-evaluate SAV volume and locations. Currently, property owners may maintain shoreline and areas around their in-water structures (docks, lifts, and boathouses).
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