JACKSON, Wis (WSAU)  It was two months ago on Monday when a gasoline pipeline burst near Jackson in Washington County. And the number of residential wells contaminated by the spill continues to grow. The total is now 26, after tests from a new well confirmed the presence of benzene for the first time.

Almost 55,000 gallons of gas spilled during the pipeline incident.

The West Shore Pipeline Company has installed filtering systems to remove gas contaminants from the affected wells. The firm said on Monday that its most recent tests still turned up benzene in 13 of the wells, or half of the total affected. Dozens of residents are still under a D-N-R advisory not to drink the water – even after the filters were installed.

The status of the clean-up will be discussed Thursday night at a public information meeting at Kettle Moraine High School.