A North Dakota woman accused of operating a rolling meth lab entered not guilty pleas to six criminal charges Tuesday morning in district court.

Megan Marie Schwabel pleaded not guilty to felony charges of unlawful clandestine laboratory operations and manufacturing methamphetamine, as well as misdemeanor charges of meth possession, driving without registration and insurance, and having an open alcohol container in a moving motor vehicle.

She could face over 41 years in prison if convicted on all counts.

The charges stem from an April 16 incident during which a Casper police officer stopped a black Dodge Intrepid for speeding on CY Avenue and allegedly discovered materials and equipment used to make methamphetamine.

Agents of the Wyoming Division of Criminal Investigation were called to the scene and assisted members of the Regional Emergency Response Team in collecting and testing samples of the chemicals found inside the vehicle.

Also taken into custody was Jason Hays, who had been in the vehicle with Schwabel.

Schwabel remained in custody on $80,000 cash or surety bond at the time of Tuesday's court hearing.

Her case is set for the Aug. 20 trial stack, though District Judge Thomas Sullins told the parties that the trial may be continued to a September trial stack.