Deregulated US government oversight on interstate waters leaves murky implications for states

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The familiar murkiness of waters in the Gulf of Mexico can be off-putting for beachgoers visiting Galveston Island. Runoff from the Mississippi River makes its way to local beaches and causes downstream water to turn opaque and brown. Mud is one factor, and river runoff is another. However, concern tends to ratchet up a notch when pollution enters the river runoff discussion on a national scale, specifically when smaller, navigable intrastate bodies of water push pollution into larger interstate waters often involved in commerce (i.e. the Mississippi River, Great Lakes, Ohio River).

A recently published research analysis in the journal Science, co-authored by Victor Flatt, Dwight Olds Chair in Law at the University of Houston Law Center, demonstrates how the supposed benefits of retracting federal oversight on these transboundary waters and defaulting that responsibility to individual states failed to account for economic and  that said otherwise and violated the bounds of justifiable law.

In the article, “A  rule that turns a blind eye to transboundary pollution,” Flatt contributed as the sole legal researcher, explaining how the 2020 Navigable Waters Protection Rule, which retracted federal oversight of interstate waters, did so with the overt assumption that state governments would fill in the oversight gap. Not only did the evidence point toward an alternate outcome but the rule’s federalism rationale was incorrect, according to the researchers.

“New administrations get to implement new policies, but those policies have to be consistent with statutes, the Constitution and be logical,” Flatt said. “The legal phrase is: ‘they cannot be arbitrary and capricious.’ An administration can only do what is allowed by the law and must be rational and logical. This fails that. This is a policy disagreement, but it is a policy disagreement that is out of the bounds of what is allowed by law.”

The cleanliness of larger transboundary rivers falls under the responsibility of the federal government and under the 2015 Clean Water Rule (CWR) enacted during former President Barack Obama’s administration. This included small wetlands and streams that could push pollution runoff to these larger rivers that bisect several states. In 2020, under the Navigable Waters Protection Rule (NWPR), the federal regulation of some of those smaller, linked bodies of water was withdrawn, leaving individual states with the responsibility to fill in the gaps. However, many states did not assert control over these waters as assumed by former President Donald Trump’s administration, leaving room for pollution to make its way to interstate waters.

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