The offender was convicted at trial of operating a motor vehicle with a blood alcohol level over 80mgs.
She had a prior conviction for impaired driving in 2010, and the Crown filed a Notice of Increased Penalty.
The court accepted a joint submission for a 30-day sentence, allowing it to be served intermittently to preserve the offender's employment.
The court also imposed a two-year driving prohibition and two years of probation with counselling conditions.