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2009

The 2009 algae bloom season extended from May to December. Twenty-one heath advisories were issued that were in effect for a total of 727 days (advisory-days). The number of public health advisories issued per year has increased from six in 2005 to 21 advisories in 2009. Get complete details in the 2009 Bloom Season Recap (pdf).

This map displays the location of each advisory (in sequence). See the chart 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)

 2009 Advisories

Number

Waterbody

  Region

County

Start Date

    End Date

No. of Days

1

Hill Creek Reservoir

Willamette

Lane

5/21/2009 

6/16/2009 

26 

2

Lost Creek Lake

Southwest

Jackson

6/15/2009 

6/29/2009 

14 

3

Crane Prairie Reservoir

Central 

Deschutes

6/18/2009 

7/09/2009 

21 

4

Odell   Lake

Central

Klamath

7/22/2009 

8/12/2009 

21 

5

Whetstone Pond

Southwest

Jackson

7/23/2009 

9/09/2009 

48 

6

Lemolo Lake

Southwest

Douglas

7/23/2009 

8/18/2009 

26 

7

Hill Creek Reservoir

Willamette

Lane

7/30/2009 

8/31/2009 

32 

8

Devils Lake

Northwest

Lincoln

7/31/2009 

9/08/2009 

39 

9

Crane Prairie Reservoir

Central

Deschutes

7/31/2009 

8/12/2009 

12 

10

Wickiup Reservoir

Central

Deschutes

8/12/2009 

8/31/2009 

19 

11

Dexter Reservoir

Willamette

Lane

8/13/2009 

9/28/2009 

46 

12

Dorena Reservoir

Willamette

Lane

8/13/2009 

10/23/2009 

71 

13

Paulina Lake

Central

Deschutes

8/27/2009 

9/21/2009 

25 

14

Wickiup Reservoir

Central

Deschutes

9/02/2009 

9/25/2009 

23 

15

Elk Creek @ Umpqua River

Southwest

Douglas

9/04/2009 

9/22/2009 

18 

16

Sru Lake

Southwest

Coos

9/09/2009 

11/30/2009 

82 

17

Willow Creek lake

Northeast

Morrow

9/11/2009 

10/19/2009 

38 

18

Tenmile Lake

Southwest

Coos

9/18/2009 

11/30/2009 

73 

19

Haystack Reservoir

Central

Jefferson

9/18/2009 

11/02/2009 

45 

20

Lost Creek Lake

Southwest

Jackson

9/18/2009 

10/13/2009 

25 

21

Blue Lake

Willamette

Multnomah

10/14/2009 

11/06/2009 

23 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Find historical advisory information by year in the algae archive