Embed Size (px)
Citation preview
Red Lake River Farm to Stream Tile Drainage
Study- Red Lake Watershed District –
Project Background
Theories
Water Quality Comparisons
Thief River Watershed
Marshall/Beltrami Co. Project AreaMarshall/Beltrami Co. Project Area
Marshall County Sites
Red Lake Co. Project AreaRed Lake Co. Project Area Wild Rice
Paddy Monitoring
Wild Rice Paddy Monitoring
Clearwater River Watershed
Red Lake County Sites
Clearwater County (Wild Rice) Sites
Tile Water Quality Findings Conventional Agriculture
Tile Outlet Comparisons
Tile Outlet Comparisons
Marshall Co. Gravity Tile
Red Lake Co. Gravity Tile
Marshall Co. Pumped Tile
Natural Background
Surface Drainage Water Quality
Surface Versus TileConventional Ag
AVERAGES Surface Tile
Total Phosphorus (mg/L) 0.87 .02
Total Suspended Solids (mg/L) 124.92 1.96
Nitrates (mg/L) 2.57 21.31
Total Nitrogen (mg/L) 5.61 22.36
Turbidity (NTU) 149.58 .71
Drainage vs. Natural Background Levels- Comparable or Better -
Drainage vs. Natural Background Levels- Cause for Concern -
Wild Rice Paddy Water Quality Results
Wild Rice Paddy Water Quality Results
Wild Rice Paddy Water Quality Results
VS.VS.
Sfc.Sfc. ML TileML Tile
Wild Rice Main Line TileWin–Win Solution
Wild Rice Paddy Sfc. Drainage Impact on the Clearwater River
Wild Rice Paddy Sfc. Drainage Impact on the Clearwater River
Wild Rice Paddy Results – Impact on Clearwater River
Wild Rice Paddy Results – Impact on Clearwater River
FLOW
Flow Comparison Theories Being Tested
How is flow measured?
Peak Flows
More InformationMore Questions
Future Plans
