LAS VEGAS (AP) — The district attorney in Las Vegas says environmental activist Erin Brockovich will face a misdemeanor charge of operating a boat while intoxicated following her arrest at Lake Mead.

An aide to Clark County District Attorney Steve Wolfson said Tuesday that Brockovich has an Oct. 7 court date in Henderson Justice Court.

Brockovich lives in Agoura Hills, Calif. She was arrested Friday at a marina on the Colorado River reservoir and posted $1,000 bail at the Clark County jail.

A Brockovich spokesman didn't immediately comment Tuesday.

Brockovich issued a statement Sunday calling the incident "clearly a big mistake."

The namesake of a 2000 movie starring Julia Roberts could face six months in jail, a $1,000 fine, community service and court-ordered alcohol counseling if she's convicted of driving under the influence.