Replacement Projects for the Aerators

After several years of problematic operation, the CRWD Board of Managers decided to discontinue the aeration portion of the Clearwater River Chain of Lakes (1980) Restoration Project on Lakes Louisa, Marie, and Augusta. As part of amending the project, the board had to put into place replacement projects that provided the same benefit as the aerators provided, measured in estimated pounds of phosphorous removed from Clearwater Lake per year. The three aerators were estimated to remove around 1,087 pounds of phosphorous from Clearwater Lake per year.


The projects that are listed as replacements for the aerators are listed below. Together they are estimated to remove 1,088 pounds of phosphorous from Clearwater Lake annually.

Clearwater River State Highway 55 Fish Trap

The fish trap on the Clearwater River along State Highway 55 cost $30,000 and is estimated to remove 200 pounds of phosphorous per year from Clearwater Lake. The fish trap allows for the control of rough fish in the upper chain of lakes by trapping rough fish from harvesting and mitigating their annual spawning.

Nistler-Geislinger Basin

The Nistler-Geislinger Basin was constructed south of the southern inlet to Clear Lake along 355th Street (Meeker County) to provide a place for sediment to settle out before entering Clear Lake. The basin cost $28,000 to complete and is estimated to remove 27 pounds of phosphorous per year from Clearwater Lake.

Clear Lake North V-Notch Weir

While not the primary purpose of the project, the $52,000 V-Notch Weir at the north end of Clear Lake does provide an estimated 236 pounds of phosphorous removed from Clearwater Lake per year. Check out the Clear Lake North V-Notch Weir for more information.

Buffer Incentive for 1997

Calculating out the total buffer incentives for 1997 shows that the buffers for that year cost $30,000 and had an estimated phosphorous reduction impact of 200 pounds per year from Clearwater Lake. Check out our incentives page to learn more about our buffer incentive programs.

2001 Poole Feedlot Controls

The feedlot controls installed on the Poole property, which cost the District $28,000, resulted in an estimated phosphorous reduction from Clearwater Lake of 40 pounds per year.

Clearwater Harbor, Hidden River, Rest-A-While Sanitary Sewer System

These sanitary sewer systems were not built as a replacement project for the aerators, but they do provide a benefit of 85 pounds per year of estimated phosphorous reduction from Clearwater Lake. Check out the Communal Sanitary Sewer Systems page to learn more.

Segner Pond

Segner Pond was constructed as part of the Cedar, Albion, Swartout, Henshaw Project #06-1. Still, the pond provides a benefit of 300 pounds of phosphorous removed per year from Clearwater Lake.