A Renton woman accused of killing a mother and daughter when her vehicle struck a stalled car on Interstate 5 inFederal Way on Dec. 17, pleaded not guilty on Monday.

Rocelle Lynne Harris, 29, was charged with two counts of vehicular homicide on Dec. 21.

She was driving to work under the influence on Dec. 17 just before her Ford Mustang struck a stalled Honda Civic at 1:38 a.m., north of South 304th Street, according to court documents.

The driver of the Honda, 31-year-old Everlean I. McMillan from Tacoma and 51-year-old Samantha M. Agee fromPuyallup, the passenger, were both pronounced dead at the scene.

Harris told police that prior to the crash she was driving northbound in the middle lane when she made a lane change to the right and struck the vehicle. She said she had consumed two drinks earlier that night around 8 p.m.

She was transported to St. Francis Hospital, where a state trooper detected an odor of alcohol coming fromHarris’s breath at approximately 2:19 a.m. A preliminary breath test taken at 2:50 a.m. showed Harris had a blood alcohol content of .092 — over the .08 legal limit.

She is being held in jail in lieu of $100,000 bail.