5.6.1 Local Government Units Subwatershed Phosphorus Load Reductions

Part of the phosphorus load reduction plans for various lakes is a required reduction of phosphorus load contributed by existing land uses in the subwatershed.  Where a TMDL study has not identified a specific watershed load reduction, this requirement is a 15 percent reduction in loading from existing residential land use; 25 percent from existing agricultural land use; and 10 percent from other developed land use. This reduction can be accomplished through application of BMPs such as additional street sweeping, local water quality ponds, rain gardens and infiltration swales, and agricultural BMPs that reduce erosion or treat runoff or drain tile discharge; prevention of future load increases through the conservation of lands previously identified for development; or achieving load removals in excess of  the minimum required.    The LGUs identified below must identify in their local water management plans specific steps to accomplish these minimum reductions.  The LGUs must also annually report to the District their progress toward accomplishing this requirement.

Table 13.  Allocation of Six Mile Marsh subwatershed LGU phosphorus load reductions (lbs/yr).

Lakeshed

Laketown Township 

Victoria 

Minnetrista

St. Bonifacius

Watertown Township 

Total

Pierson

19

-

-

-

-

19

Wasserman*

60

198

-

-

-

258

Steiger

-

 28

-

-

-

28

Zumbra

-

 8

-

-

-

8

Stone

2

-

-

-

-

2

Auburn East

13

 21

-

-

-

34

Auburn West

3

-

-

-

-

3

Lunsten

23

-

-

-

-

23

Parley

99

-

-

-

-

99

Six Mile Marsh

 

 

20

11

 

31

Mud

2

 

25

12

 

39

TOTAL

221

255

45

23

0

544

*Load reductions as shown in the draft TMDL for the lake.