Hennepin County will implement prioritized projects from the Rush Creek Subwatershed Assessment, including closing about 200 open tile intakes on the farms of 11 landowners, establishing 6 grassed waterways, two exclusion fence systems, and two contour farming conversions. These projects will significantly reduce bacteria loads upstream of Elm Creek Park Reserve where the creek serves as a learning laboratory for more the 2,500 students each year. In addion, these projects will reduce sediment by 616 tons per year and phosphorus by 478 pounds per year.
Seven lakes and four streams in the Elm Creek watershed are impaired by excess nutrients, bacteria, low oxygen, and unhealthy biotic communities. Modeling completed for the Watershed Restoration and Protection Strategy identified areas that contribute high loads of sediment and nutrients to the streams and lakes in the watershed, however, the scale of that modeling was not sufficient to pinpoint to the field level where BMPs would be most effective. The Rush Creek Headwaters Subwatershed Assessment will evaluate four high pollutant loading catchments.
The activity is for sediment sample preparation for cores collected at AGP/Northland Slip (AGP) and Azcon/DSPA Slip (Azcon) located in the St. Louis River (SLR) Area of Concern (AOC) in Duluth, Minnesota.
In accordance with a request from the Minnesota Pollution Control Agency (MPCA), Bay West, LLC (Bay West) will perform remedial investigation activities for Munger Landing, a sediment contamination site, located in the St. Louis River (SLR) Area of Concern (AOC) in Duluth.This activity will compile new 2018 data with existing data and generate updated figures and tables to support the remedy decision for the site.
This activity is for benthic bioaccumulation testing, benthic tissue analysis, and physical/chemical sediment analysis as part of the bioaccumulation study at the Mud Lake West site located in the St. Louis River (SLR) Area of Concern (AOC) near the Duluth area and one reference site at the request of the Minnesota Pollution Control Agency (MPCA).
The purpose of this work order is to collect sediment samples which will then be analyzed for contaminants of concern, and the sediments will also be used as part of a bioaccumulation study.
Bay West will complete a supplemental sediment loading study for the Ponds Behind Erie Pier located in the St. Louis River (SLR) Area of Concern (AOC) in Duluth, Minnesota.
The activity is for bench scale sediment sampling to be collected at the AGP/Northland Slip (AGP) and Azcon/DSPA Slip (Azcon) located in the St. Louis River (SLR) Area of Concern (AOC) in Duluth, Minnesota.
