; (B) reports under subsection (b)(2) on the results of sampling; (C) lead service line replacement materials and financial assistance forms; and (D) how a consumer can request a water test. (e) Service line inventory A public water system shall— (1) develop, maintain, and beginning not later than 3 years after the date of enactment of the National Opportunity for Lead Exposure Accountability and Deterrence Act of 2017 make publicly accessible an inventory of the material composition of the service lines at all residential and nonresidential facilities, including— (A) online maps showing the locations of lead service lines; and (B) where information is available, a history of services performed on such lines, including partial line replacement; (2) give the owners of such residential and nonresidential facilities the option to be identified only by block number and street name; and (3) in developing such inventory, take measures to minimize any disturbance to service lines that might release contaminants. (f) Service line ownership A public water system shall collect, maintain, and beginning not later than 3 years after the date of enactment of the National Opportunity for Lead Exposure Accountability and Deterrence Act of 2017 make publicly accessible all legal documents establishing the ownership of service lines at residential and nonresidential facilities. (g) Service line replacement (1) In general Whenever a public water system replaces a lead service line, the lead and copper rule shall— (A) require the system to replace the line from the transmission line to where the line enters the facility; and (B) prohibit partial replacement. (2) Prioritization The lead and copper rule shall require any public water system engaged in replacing lead service lines to prioritize such replacement at high-risk buildings. (h) Definitions In this section: (1) The term high-risk buildings means— (A) residential and nonresidential facilities with lead service lines— (i) that have galvanized pipes; (ii) that have low water use