Connecticut police resumed their search for missing mom Jennifer Dulos, scouring a reservoir hours after her estranged husband pleaded not guilty to new charges in the case.

On Thursday, cops used cadaver dogs to search the area around the reservoirs in West Hartford, near the Farmington mansion where Fotis Dulos lives, according to WTNH News 8.

They searched the 3,000-acre area in June and July but didn’t find anything.

Fotis’ property at Jefferson Crossing is about a half-mile away from Hartford Reservoir No. 3.

The Greek real-estate developer was in court on Thursday afternoon to plead not guilty to a new charge of tampering with evidence after investigators said Jennifer’s DNA was found inside a pickup truck they believe he used to transport her body.

Fotis’ girlfriend, Michelle Troconis, was also charged with a new count of evidence tampering. The two were initially charged in June with tampering with evidence and hindering prosecution in connection with Jennifer’s May 24 disappearance.

The mom of five was locked in a contentious divorce battle with Fotis when she vanished.