Specifications include, but are not limited to: On a per acre basis for mechanical and chemical site preparation and chemical crop tree release. The sites to be treated are located within the following DNR Forestry Areas: Aitkin, Deer River, Littlefork, Tower, Hibbing, Cloquet, and Two Harbors;The Minnesota DNR requires active steps to prevent or limit the introduction, establishment, and spread of invasive species during contracted work. The Contractor shall prevent invasive species from entering into or spreading within a project site by cleaning equipment prior to arriving at the project site. If the equipment, vehicles, gear, or clothing arrives at the project site with soil, aggregate material, mulch, vegetation (including seeds) or animals, it shall be cleaned by Contractor furnished tool or equipment (brush/broom, compressed air or pressure washer) at the staging area. The Contractor shall dispose of material cleaned from equipment and clothing at a location determined by the DNR Contract Administrator. If the material cannot be disposed of onsite, secure material prior to transport (sealed container, covered truck, or wrap with tarp) and legally dispose of offsite. The Contractor shall ensure that all equipment and clothing used for work in infested waters has been adequately decontaminated for invasive species (ex. zebra mussels) prior to being used in non-infested waters. All equipment and clothing including but not limited to waders, tracked vehicles, barges, boats, turbidity curtain, sheet pile, and pumps that comes in contact with any infested waters must be thoroughly decontaminated.