Specifications include, but are not limited to: The Contractor shall provide pre-treatment within one hour of regional / local news weather reports of a possibility of two inches (2”) or more of snow. Pre-treatment shall consist of spreading sodium chloride or approved chemical substitute on paved surfaces and walkways leading to the main entrance of the building. This includes the driveway from Blue Hills Drive, the parking lot, and sidewalk leading to the main entrance. The Contractor shall begin snow removal after 2” of snow accumulation, plowing the snow into a pile at a specified, predetermined location. Snow shall be cleared, and sodium chloride or approved chemical substitute spread on the paved surfaces and walkways leading to the main entrance of the building. This includes the driveway from Blue Hills Drive, the parking lot, and sidewalk leading to the main entrance.