Please follow http://agriculture.vermont.gov/sites/ag/files/pdf/water_quality/Research/TD-Report/Vermont-Subsurface-Agricultural-Tile-Drain-Report-01312017.pdf.

Please follow http://agriculture.vermont.gov/sites/ag/files/pdf/water_quality/Research/TD-Report/Vermont-Subsurface-Agricultural-Tile-Drain-Report-01312017.pdf.