Purpose of chapter. Definitions. Design locate request and response. Cooperation with UPC; permanent markers for water and sewer facilities; accurate placement; point of contact list. Prerequisites to blasting or excavating; marking of sites. Determining presence of underground facilities and sewer laterals. Treatment of underground facilities by blasters and excavators; emergency notifications. Degree of accuracy required in underground facility location information; liability due to inaccurate, lack of, or delayed communication of location information.