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2005 (and prior)

These charts display the date an advisory was issued (start date) or lifted (end date),

2005 Algae Bloom Advisories   

Number

Waterbody

County

Start Date

End Date

No. of Days

1

Hills Creek Reservoir

Lane

06/24/2005

07/21/2005

27

2

Crane Prairie Reservoir

Deschutes

06/24/2005

07/22/2005

28

3

Lookout Reservoir

Lane

07/13/2005

08/22/2005

40

4

Odell Lake

Klamath

07/18/2005

08/04/2005

17

5

Hills Creek Reservoir

Lane

08/19/2005

09/26/2005

38

6

Lookout Reservoir

Lane

09/14/2005

09/26/2005

12

 

2004 Algae Bloom Advisories  

Number

Waterbody

County

Start Date

End Date

No. of Days

1

Ten Mile Lake

Coos 

March 2004

unknown

unknown

2

Suttle Lake

Jefferson

June 2004

07/16/2004

unknown

3

Lava Lake

Deschutes

June 2004

07/16/2004

unknown

4

Odell Lake

Klamath

07/29/2004

08/16/2004

18

5

Crane Prairie Reservoir

Deschutes

July 2004

Sept. 2004

unknown

6

Lake Selmac

Josephine

08/19/2004

12/21/2004

124

7

Paulina Lake

Deschutes

09/03/2004

09/17/2004

14

 

Wickiup Reservoir

Deschutes

09/10/2004

09/24/2004

14

 

Find historical advisory information by year in the algae archive.
 
Other notices of Algal Blooms with no Public Health Action  

 

Waterbody

County and Note

Date

Blue Lake

Multnomah

Bloom documented: no advisory.

September 2003

Cougar Reservoir

Lane

USFS Notification : No advisory provided.

September 2002

Crane Prairie Res

Deschutes

  USFS Report : High levels of Anabaena flos-aquae: Found by Deschutes National Forest.

July 2004

Diamond Lake

Douglas

Elevated levels of Anabaena flos-aquae detected. No Health Advisory issued.

July 2004

Diamond Lake

 

Douglas

USFS Report : Diamond Lake Open to Boating and Fishing but Closed to Water-skiing, Swimming and Wading.

July 2003

Diamond Lake

 

Douglas

USFS Report : Water Quality Concerns Prohibit Water Contact at Diamond Lake.

June 2003

Diamond Lake

 

Douglas

USFS Report : Water Quality Concerns Prohibit Water Contact at Diamond Lake.

July 2002

Diamond Lake

 

Douglas

USFS Report : Algae bloom in Diamond Lake.

August 2001

Eel Lake

Coos

One report of high Microcystis cell count.: No advisory issued, late report.

September 2002

Fish Lake

Jackson

One report of excessive Anabaena: No advisory issued, single sample, late report.

September 2002

Hills Creek Reservoir

USFS Report : Larison Cove closed for water contact activities. A general advisory for Upper Packard Arm remains in effect.

August 15, 2002

Hills Creek Reservoir

USFS Report : Toxic algal blooms found in packard creek arm of hills creek reservoir.

June 6, 2002

Lake Oswego

Clackamas County

Significant algal blooms documented in 1998 and 2001. No advisories issued

1998 and 2001

Mercer Lake

Lane

Potential recreational hazard at Mercer Lake.

October 2002

Paulina Lake

Deschutes

High counts of Microcystis and Anabaena: No advisory, late report.

July 2003