; (ii) at least once by letter or email; and (iii) at least once in person or by phone call, letter, or email; (B) the public water system or local health department maintains documentation of such attempts; and (C) such owners fail to respond. (d) Public education The lead and copper rule shall require testing results— (1) to be in a standardized format; (2) to be posted on the website of the Administrator, the State exercising primary enforcement responsibility, and the public water system; and (3) to include— (A) the provisions of consumer confidence reports under section 1414(c)(4) relating to lead and copper; (B) reports under subsection (b)(2) on the results of sampling; (C) educational materials on lead service line replacement and financial assistance, including forms for applying for such financial assistance; and (D) instructions on 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 available 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) (A) give the owner of each residential and nonresidential facility at which sampling data is collected, at the written request of such owner, the option be identified only by block number and street name, unless the facility includes a child care center; and (B) keep each such request on file