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Clean Water Act regulation estimates from Greenhill et al. (2024)

Jan 17 2024 · 1 min read
Clean Water Act estimated regulation Greenhill et al. (2024)
Estimated probability of Clean Water Act regulation
Estimated regulation change

This map shows the estimated probability of Clean Water Act regulation for 400,000 randomly selected points. The map shows these estimated probabilities separately for two different Clean Water Act rules — the Supreme Court's 2006 Rapanos ruling and the Trump Administration's 2020 Navigable Waters Protection Rule (NWPR). Estimates are obtained from a deep learning model with 79% accuracy; Greenhill et al. (2024) provides details. The 400,000 points are a random subset of the 4 million points that Greenhill et al. (2024) analyze; the subset is used to decrease map memory requirements. This map shows model predictions and is not intended to substitute for jurisdictional determinations from the Army Corps of Engineers.