This includes a discussion of the November 2019 proposed rule that ultimately established the Lead and Copper Rule revisions in 2021. See 84 Fed. Reg. 6184 (Nov. 13, 2019).The Petition arguments challenging the Lead and Copper Rule include:EPA defied the SDWA mandate to set a health-based, enforceable limit on lead in tap water (i.e., a maximum contaminant level) unless it is unfeasible to ascertain levels of lead in waterA feasible, health-protective, health-based limit was arbitrarily rejectedEPA was mandated to complete replacement of all lead service linesEPA reduced by one-half the rate at which water systems with high lead levels must replace their lead service lines without analyzing whether it was feasible to maintain the current rateEPA refused to lower the level of lead contamination which triggers public water system protective measures despite evidence that it was feasible to do soA copy of the Petition can be downloaded here.