A former municipal clerk from Northampton County is heading to state prison.

Lisa Marie Guth, of 85 Saylors Lane in Easton, was sentenced Friday to 15-30 months.

She pleaded guilty to a theft charge in October.

Police say they questioned the 48-year-old woman after discovering a number of discrepancies on several residential sewer bills.

A total of $153,193.22 was taken, according to Northampton County Assistant District Attorney Jim Augustine.

He explained the charges originally were filed based on $2,600 initially found missing. A Wilson Borough audit later revealed the additional money taken.

As part of her sentence, Lisa Guth must pay restitution of $166,083.22. That's a combination of the money she's charged with stealing in addtion to auditor and investigation fees.

Police say Guth admitted to taking the money between July 2011 and June 2013 and used it to pay her mortgage and to buy groceries.

She has been on leave from her position since June of 2013.

Judge Leonard Zito approved her for a treatment program that could reduce her sentence to 11 and 1/4 months if successfully completed.