LA CROSSE, Wis. (WXOW) - A woman who authorities call a supplier of methamphetamine is arrested Monday night in La Crosse.

The La Crosse County Sheriff's Office said that their officers, along with members of the West Central Metropolitan Enforcement Group (MEG), Prairie du Chien and La Crosse Police, and Grant County Sheriff's Office worked together to arrest Sandy Xiong, 30, of La Crosse shortly after 6 p.m. in the parking lot of a southside business.

The sheriff's office said the investigation began in Prairie du Chien where police were looking into a drug dealer there. Police learned Monday that the dealer was coming to La Crosse to buy a large amount of meth from a supplier.

From past investigations, authorities said Xiong was recognized as the supplier.

The arrest happened after officers who were watching her saw her leave her home, go to a parking lot, and sell the meth to the Prairie du Chien dealer.

When arrested, she had 116.5 grams of meth in her possession. That led investigators to get a search warrant for her home. They found another 212 grams of meth in the residence. The 328.5 grams of meth had a value of between $7,500-9,100 according to authorities.

Xiong was arrested on charges of possession with intent to deliver methamphetamine greater than 50 grams and also a probation hold.

Zachary Pupp, 38, was arrested at the home on similar drug related charges.

Both are held in the La Crosse County Jail without bond awaiting their initial court appearances.