- Hypoxic areas in Gulf of Mexico and Great Lakes linked to nutrient transport from agricultural drainage
- Lack of current conservation practices and programs to adequately reduce transport
- Acceptable quality water supplies for downstream reuse including ecosystem function and sustainability, drinking water supplies, and recreation
- Design and test the efficacy of a flow through filter system using an array of natural and synthetic by-product materials to reduce nutrient and pesticide transport from a mixed-used watershed.
- Assess the ability of some commercially available systems to filter soluble pollutants from drainage waters originating from a managed turf site
- Laboratory testing with flow rates equivalent to those measured in field studies and field testing on drainage pipe outlets from managed turf sites
- Reduction in nitrate nitrogen concentration was 4.7%, dissolved reactive phosphorus, 51.6%, chlorothalonil, 58.2%, and metalaxyl, 28.8%
- System has been installed on tile drainage outlet at a private golf course in MN
- Design, develop, and field test effectiveness of delivery systems and identified by-product materials
- Field testing at a near 6 square mile mixed use watershed located within UBWC.
- Field site has been instrumented with access pipe and sampling equipment
- Materials have been identified and an experimental design developed
DRAINAGE FILTRATION: DEVELOPMENT AND ASSESSMENT (PDF)