Volney tmdl photos / report: http://www.pca.state.mn.us/index.php/view-document.html?gid=10445
Volney tmdl: http://www.pca.state.mn.us/index.php/view-document.html?gid=21457
Lva tmdl approval letter: http://www.pca.state.mn.us/index.php/view-document.html?gid=21623
Volney mpca report: http://cf.pca.state.mn.us/water/watershedweb/wdip/waterunit.cfm?wid=40-0033-00
Ag tiling information: http://en.wikipedia.org/wiki/Tile_drainage
Article af buffers: http://www.startribune.com/dayton-s-interest-in-waterways-has-conservationists-attention/304827301/