This is a consolidated appeal arising from the Flint, Michigan water contamination crisis. Between 1967 and 2014, Flint sourced its water from Lake Huron via the Detroit Water and Sewerage Department. In 2013, Flint decided to join a new water supplier (KWA) that was under construction. When the current supplier terminated the contract, Flint needed an interim water source. In April 2014, Flint's emergency manager switched the water source to the Flint River without implementing required anti-corrosive treatment measures, despite a 2011 report warning that such treatment was necessary. Following the switch, residents immediately complained about the water quality. Testing revealed coliform, E. coli bacteria, high lead levels, and other contaminants. The water was linked to Legionnaire's disease. General Motors stopped using the water due to corrosion. Despite warnings from the EPA and others, officials continued to bill residents for contaminated water and overruled the City Council's attempt to reconnect to the former supplier. In October 2015, an emergency was declared and Flint reconnected to the previous supplier, but damage to pipes continued to affect water quality. The Michigan Civil Rights Commission later found that the response to the crisis was "the result of systemic racism." Plaintiffs, Flint residents and businesses, brought class action lawsuits alleging violations of their constitutional rights under 42 U.S.C. § 1983, including violations of the Contract Clause, Due Process Clause, and Equal Protection Clause, as well as claims under § 1985 and various state law claims. Defendants included state officials (Governor Snyder, state departments), emergency managers, local officials, and the City of Flint.