Online Appendix Section OA – Descriptive or anecdotal evidence and background information

Passed during the Bush-Cheney Administration, the loophole exempts the oil and gas industry from the requirements of the Safe Drinking Water Act. [...] The lawsuit calls the board’s reasons for denying the rulemaking petition “factually erroneous, unsupported, and irrational.” The board will discuss the MEIC filing and the request for rulemaking contained the filling at its Feb. [...] The families that weren't part of the lawsuit accepted Cabot's money, but only one of the 11 families in the lawsuit agreed to accept the offer of a water system. [...] (1) for the following truncation choices: (i) we truncate the sample at the 95th percentile per ion at the HUC4 level; (ii) we truncate the sample at the 99th percentile per ion; (iii) we truncate the sample at the 95th percentile per ion. [...] We propose the following variables: the monthly fracking-related google searches at Online Appendix – 31 the state-level, the monthly number of newspaper articles pointing to HF as a source of water pollution by county, the monthly cumulative number of HF wells in a state, and the number of water readings in a state-year-month.