Specifications include, but are not limited to: search and locate existing utility lines utilizing ground penetrating radar and/or electromagnetic pipe and cable locator. The Contractor shall identify and mark utilities according to the American Public Works Association standards for temporary marking of underground utilities. The Contractor shall mark findings with paint marks and/or flag markers at points of significant corresponding (color-code), i.e., communication, fiber optics, electric, telephone, gas/fuel, water and sewer utilities of all in-slab and underground utilities and related branch circuits as follows: • All water supply lines • All gas and fuel lines • All hydronic supply lines and return lines • All steam supply lines and return lines • All electrical conduit lines • All sanitary and storm sewer drain lines • All data/communication lines • All other various underground utilities and lines as detected