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The 2014 bloom season extended from June 2014 into February 2015. Ten advisories were issued that were in effect for a total of 456 days (advisory-days). Get complete details in the 2014 Bloom Season Recap.pdf2014 Bloom Season Recap.

This map displays the location of each advisory (in sequence). See the table below for detailed information, including links to the original advisories. Links are displayed by the date an advisory was issued (start date) or lifted (end date).

Douglas County: South Umpqua River and Lawson Bar

A permanent health advisory is in place for the pools of water that form in the bedrock along the rivers edge. These pools are known to develop cyanobacterial (blue-green algae) blooms that can be harmful to pets and people if accidental ingestion occurs.Signs have been posted at several access areas along the river Permanent Umpqua River Sign.jpgPermanent Umpqua River Sign (.jpg)

2014_Advisories with Lost Creek Lake lifted.gif

2014 Advisory Listing  (Click on issued or lifted date to view news release)
# Waterbody Region County Dominant species / toxin Cell count/
(start date)
(end date)
Duration (days)
1 Lost Creek Lake  Southwest  Jackson  Anabaena flos-aquae  3,222,251 cells/mL 6/3/2014 6/26/2014 22
2 Odell Lake Central Klamath Microcystin 675 parts per billion (ppb) 7/21/2014 8/8/2014 18
3 Devils Lake Northwest Lincoln Microcystin >25 ppb 8/1/2014 11/25/2014 116
4 Walterville Pond  Willamette
Lane Microcystis 53,000 cells/mL 8/5/2014 10/2/2014 58
5 Tenmile Lakes Southwest Coos Microcystin 107 ppb 9/15/2014 11/25/2014
6 Willamette River Willamette Multnomah Microcystis 2.25 million cells/mL 9/16-19/2014
10/2/2014 16
7 Wickiup Reservoir Central Deschutes Microcystin 20.6 ppb 9/19/2014 11/10/2014​ 52
8 Cullaby Lake Northwest Clatsop Cylindrospermopsin &
12 ppb &
16 ppb
9/22/2014 10/3/2014 11
​9 ​Willow Creek Reservoir ​Northeast ​Morrow ​Microcystis ​1,777,664 cells/mL 10/10/2014​ 11/18/2014 ​39
​10 ​Lost Creek Lake
​Southwest ​Jackson Anabaena flos-aquae 197,629 cells/mL
12/4/2014 2/26/2015​ 84​