ST. PAUL, Minn. (AP) — Gov. Mark Dayton has vetoed a bill that would nullify a water quality standard that’s meant to protect wild rice.

The legislation passed by the Republican Legislature would have nixed a largely unenforced 1973 law limiting sulfate discharges into water where wild rice grows to 10 milligrams per liter. Supporters argued that standard is outdated and would cost mining companies hundreds of millions of dollar. Opponents argued those standards protect a food that’s integral to Ojibwe culture.

READ MORE: Ordway In St. Paul: 'An Officer And Gentleman'

Dayton had previously indicated he’d veto the bill if it wasn’t changed. He followed through on that promise Wednesday.

READ MORE: Minnesota Ranks Among Top 10 Most Active States, But It's Not All Good News

The Democratic governor says the bill was an “extreme overreach” that would guarantee ongoing lawsuits. He says lawmakers have enough time to reach a workable compromise before the Legislature adjourns May 21.

MORE NEWS: Driver Shot While On I-394 In St. Louis Park, Investigation Underway

(© Copyright 2018 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)