California water agencies oppose Trump-proofing bill

By Nicole Norman | 03/18/2025 11:47 AM EDT

The debate over SB 601 is reminiscent of a 2019 bill meant to protect state regulations from Trump administration rollbacks.

Water behind Schafer Dam forming Lake Success on the Tule River in the Central Valley ahead of a winter storm in Tulare County in Porterville, California on February 12, 2025. (Photo by Patrick T. Fallon / AFP) (Photo by PATRICK T. FALLON/AFP via Getty Images)

The Association of California Water Agencies, the leading trade group representing California's public water agencies, adopted an "oppose" position on Sen. Ben Allen's SB 601. AFP via Getty Images

SACRAMENTO, California — The leading trade group representing California’s public water agencies came out Monday against a bill meant to protect the state from Trump administration rollbacks.

What happened: The Association of California Water Agencies adopted an “oppose” position to Sen. Ben Allen’s SB 601, which would clarify state law to reclassify all waters that were previously defined as “waters of the state” prior to the Supreme Court’s 2023 Sackett v. EPA decision.

ACWA senior policy advocate Soren Nelson said in an email the group has “serious concerns with SB 601, as it would needlessly complicate the state’s regulatory framework for protecting water quality, lead to frivolous litigation, and almost certainly translate into higher water bills for Californians.”

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Why it matters: ACWA’s opposition is a signal that the bill faces an uphill battle.

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