This Invitation for Bids (IFB) is issued to procure the goods or services, as specified in this Section 2, from a contract between the successful bidder(s) and the Maryland Department of the Environment (MDE), Land and Material Administration. MDE is requesting Price Bids from qualified contractors to provide equipment, equipment operators, materials and manpower for maintaining water treatment systems, maintaining pipes and ditch systems, modification and removal of water treatment system, earth moving, grading, hauling, digging, and revegetation that will be needed on mining impacted land in the coal mining region in Western Maryland. The actual work duties performed will be outlined by the AMLD as the need for services arises and will be based on the project assigned. The contractor must provide listed equipment which shall include an experienced operator to perform work related to both mine reclamation and acid mine drainage treatment. The primary work will be excavation, grading, and hauling but other related duties may include welding, tree cutting, snow removal, metal cutting, plumbing, and revegetation of disturbed areas.