AUGUSTA — A Waterville city councilor is free on bail after Augusta police arrested her on a criminal speeding charge Monday morning.

Eliza Mathias, 39, of Waterville, was charged with driving at least 30 miles per hour over the posted speed limit during a traffic stop on Bog Road just before 9 a.m., said Augusta police Lt. Christopher Read.

Read would not say what speed she was alleged to have been driving. August police Lt. Christopher Massey said she was stopped in a 35 mph zone.

Bog Road is in north Augusta, and is a north-south route that goes from Route 27 to the Sidney line. The speed limit is 35 mph in the more residential area near Old Belgrade Road before increasing to 45 mph as it approaches Sidney.

Mathias posted the $100 cash bail later Monday morning at Augusta Police Department, Read said.

Criminal speeding is a class E crime punishable by up to six months incarceration and a $1,000 fine. Mathias is scheduled to appear Jan. 11 in Augusta District Court.

Mathias, a Democrat, represents Ward 6 on the Waterville City Council. The incumbent ran unopposed in November.

Two calls to Mathias for comment were not returned Wednesday.