For more information on the lake water quality grades, visit Understanding Lake Water Quality Grades. For more detailed data, visit our Annual Monitoring Reports page.
While these grades give a general sense of the health of a lake, they are far from the whole story. District researchers are developing a new, holistic way to understand the overall health of the watershed. The E-Grade program will use a wide array of criteria to evaluate not only lakes, but other natural resources throughout the watershed.
Read the 2016 Annual Research and Monitoring Report.
| Lake |
2017 |
Historic Average |
| Christmas |
A |
A |
Dutch Lake Subwatershed
| Lake | 2017 | Historic Average |
| Dutch | n/a
| C |
Gleason Lake Subwatershed
| Lake |
2017 |
Historic Average |
| Gleason |
D
|
C |
| Kreatz (East)
(Volunteer) |
-
|
n/a
|
| Mooney (Volunteer) | -
| n/a
|
| Snyder (West)
(Volunteer) |
-
|
n/a
|
Lake Minnetonka Subwatershed
| Lake/Bay |
2017 |
Historic Average |
| Minnetonka:
Black |
-
|
C |
| Minnetonka:
Carman |
A
|
A |
| Minnetonka:
Carsons |
-
|
A |
| Minnetonka:
Cooks |
-
|
B |
| Minnetonka:
Crystal |
A |
A
|
| Minnetonka:
Forest |
C |
C
|
| Minnetonka:
Grays |
A |
A |
| Minnetonka:
Halsted |
C |
D |
| Minnetonka:
Harrisons* |
-
|
C |
| Minnetonka:
Jennings |
C
|
D |
| Minnetonka:
Lafayette |
-
|
A |
| Minnetonka:
Lower Lake North* |
A |
A |
| Minnetonka:
Lower Lake South |
A |
A |
| Minnetonka:
Maxwell |
-
|
B |
| Minnetonka:
North Arm |
-
|
B |
| Minnetonka:
Peavey |
-
|
C |
| Minnetonka:
Phelps |
-
|
B |
| Minnetonka:
Priests |
-
|
C |
| Minnetonka:
Smithtown |
-
|
A |
| Minnetonka:
Spring Park* |
A
|
A |
| Minnetonka:
St. Albans |
-
|
A |
| Minnetonka:
Stubbs |
C |
C |
| Minnetonka:
Wayzata |
-
|
A |
| Minnetonka:
West Arm |
-
|
C |
| Minnetonka:
West Upper |
-
|
B
|
| William
(Volunteer) |
-
|
n/a
|
Lake Virginia Subwatershed
| Lake |
2017 |
Historic Average |
| Minnewashta |
-
|
B |
| Minnewashta -
South Bay (CAMP) |
B |
B
|
| St. Joe (CAMP) |
B |
A |
| Virginia |
C |
C |
Langdon Lake Subwatershed
| Lake |
2017 |
Historic Average |
| Langdon |
-
|
D |
Long Lake Creek Subwatershed
| Lake |
2017 |
Historic Average |
| Dickeys
(Volunteer) |
-
|
B |
| Holy Name
(Volunteer) |
n/a |
n/a
|
| Long |
C
|
C |
| Minnetonka:
Tanager |
C
|
D |
| Wolsfeld
(Volunteer) |
-
|
n/a
|
Minnehaha Creek Subwatershed
| Lake/Pond |
2017 |
Historic Average |
| Brownie (MPRB) | -
| C |
| Bde Maka Ska (formally Lake Calhoun) (MPRB) |
A |
A |
| Cedar (MPRB) |
C
|
B |
| Cobblecrest
(CAMP) |
n/a |
F |
| Hannan (Volunteer) | n/a | n/a
|
| Harriet (MPRB) |
A |
A |
| Hiawatha
(MPRB) |
C
|
C |
| Isles (MPRB) |
C
|
C |
| Meadowbrook |
n/a |
n/a
|
| Mother |
n/a |
n/a
|
| Nokomis (MPRB) |
C |
C |
| Powderhorn
(MPRB) |
F
|
D |
| South Oak
(CAMP) |
C |
D |
| Twin (CAMP) |
D |
D |
| Victoria
(Volunteer) |
n/a
|
n/a
|
Painter Creek Subwatershed
| Lake |
2017 |
Historic Average |
| Thies
(Volunteer) |
-
|
C |
Schutz Lake Subwatershed
| Lake |
2017 |
Historic Average |
| Schutz |
-
|
C |
Six Mile Creek Subwatershed
| Lake/Pond |
2017 |
Historic Average |
| Church |
-
|
C |
| East
Auburn |
-
|
C |
| West Auburn
(TRPD/Volunteer) |
B
|
B |
| Kelsers
(MCWD/Volunteer) |
-
|
C |
| Lundsten -
North |
-
|
n/a
|
| Lundsten -
South |
-
|
F |
| Marsh |
-
|
n/a
|
| Parley |
C
|
D |
| Piersons |
-
|
B |
| Steiger (TRPD) |
B |
B |
| Zumbra
(Zumbra-Sunny) (TRPD) |
A |
A |
| Turbid |
-
|
C |
| Wassermann |
C |
C |
| Wassermann -
West Bay |
-
|
C |
KEY 1
- = Waterbody was not monitored in 2017
n/a = There was insufficient data
*= Bays not monitored due to water quality similar to adjacent bay (see Key 2)
Blank = Insufficient number of years of data to calculate average
KEY 2: Lake Minnetonka Bays with Statistically Similar Water Quality
Lower Lake North – Lower Lake South
Carman Bay – Spring Park Bay
ETC:
Lakes not monitored by MCWD are monitored by:
MPRB = Minneapolis Park and Recreation Board
CAMP = Metropolitan Council Environmental Services' Citizen Assisted Monitoring Program
TRPD = Three Rivers Park District
NOTE: Lake grades are no longer being calculated for wetlands or water bodies with wetland characteristics (e.g., Bass Lake, Diamond Lake, and Mud Lake).
