Lake Minnetonka Water Quality Grades

The following is a list of MCWD lakes. The lakes that have been or are currently being monitored have recieved a lake water quality grade. The lake water quality grades have been posted for the past ten years.

For more information on the lake water quality grades go to Understanding Lake Water Quality Grades.

Lake Name

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

Black Lake

      

C+

  

C+

C+

B+

B-

B

B-

Browns Bay

                      

Carman Bay

      

B+

  

B+

B

A-

A

A

B+

Carsons Bay

      

A

A-

B+

B+

A

A

A

A-

Cooks Bay

B+

C+

B

B-

B-

B

C+

B

B

B

B-

Crystal Bay

B+

C+

A-

B+

B

B-

B-

B+

B

A

B-

East Upper Lake

      

B+

A-

            

Forest Lake

D+

D+

D

C

C-

D

D+

D+

D

C

C-

Gideon Bay

      

A

            

A-

Grays Bay

      

A

A

B+

B

A

B+

A-

A

Halsted Bay

C-

C-

D+

C-

C-

D+

D

D+

D

D

D

Harrisons Bay

C-

C

D+

C

C-

D

D+

C-

C-

C

D+

Jennings Bay

D+

C-

D+

C-

D

D

F

D

C-

D

D

Lafayette Bay

        

B+

B+

B-

A

A

A

A-

Lower Lake North

        

B+

B+

B+

A

A

A

A

Lower Lake South/ Gale Island

A

A

A

A

A-

B+

B+

A

A

A

A-

Maxwell Bay

C+

C+

C+

B

C+

C+

C

B

C+

B-

B-

North Arm

C+

B-

B-

B

B-

B-

C+

B

B-

B-

B-

Peavey Pond

C+

C+

C

C

C

D

C-

C+

C

C

C

Phelps Bay

          

B+

B

A-

A-

A

B+

Priests Bay

      

C-

B-

C+

C+

C+

C+

C+

C

St. Albans Bay

B+

A-

A

A

A

B+

B

A

A

A

A-

Smithtown Bay

      

B+

A-

B

B

A

B+

A

B+

Spring Park Bay

A-

B+

A

A-

B+

B

B

A-

A-

A

A-

Stubbs Bay

C

C-

C-

C

C-

D+

C-

C

C

C

C

Tanager Lake

D+

C-

D

D-

  

D

D-

D

D

D+

D

Wayzata Bay

A

A-

A

A

A-

B+

B

A

A

A

A

West Arm

D+

C-

D+

C

C

D+

D

D+

C-

C

C-

West Upper Lake/ Crane Island

B+

B+

B+

B

A-

B

B-

B+

B+

A

B

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