Hi-Crush Partners LP announced the appointment of Jeffery A. Johnson as Director of Environmental Compliance, with the responsibility for maintaining and administering the regulatory compliance programs for all Hi-Crush facilities. Prior to joining Hi-Crush, Mr. Johnson held positions of increasing responsibility within the Wisconsin Department of Natural Resources. He most recently served as an Environmental Engineering Supervisor at the Department from 2008 to 2014, and as the Acting Deputy Director of the Bureau of Air Management from 2011 to 2012.