There are both state and federal formats of this review and each address different topics. The state form, which is also used by Cities and Counties, goes into the depth of technical investigation required to thoroughly cover the topics identified in the EAW. The federal form has its own list of prescribed subjects to be investigated. EISs are required much less often than an EA or EAW. This review can take 12 to 18 months to complete.

Recent EIS experience by Bolton & Menk, Inc., includes:

• Mining Projects
  • EIS for Hayes Mine, Ottawa, MN by the Unimin Corporation
  • EIS for Vetter Mine, Kasota, MN by the Unimin Corporation
• Transportation Project
• EIS for TH 14, New Ulm to North Mankato Consultant Team