The contract is for on-call professional services - environmental, and the vendor is Logan Simpson Design Inc. The contract is for a term of one year, with the option to extend for up to four additional terms of one year each. The contract includes a fee schedule, which outlines the hourly rates for various personnel. The vendor is responsible for providing environmental services, including environmental impact statements, environmental assessments, and cultural resources compliance documents. The contract also includes a quality assurance program, which ensures that the vendor provides high-quality services and deliverables.