Replication Data For: Hydraulic Fracturing Chemicals Reporting: Analysis of Available Data and Recommendations for Policymakers

The Level 0 (L0) through Level 4 (L4) data sets provided here track our process to eventually obtain a clean and standardized version of original data submitted to the FracFocus Chemical Disclosure Registry (http://fracfocus.org/data­download) by oil and gas well operators. Researchers at Harvard Law School and Harvard University, Earth & Planetary Sciences Department (Harvard) used these L0 through L4 data sets to conduct data quality and chemical disclosure analyses. The datasets provided here for public use will enable others to replicate our analysis.