Deputies are investigating after a meth lab was discovered in a house in northeast Bexar County on Thursday night. Sheriff Javier Salazar says the house on Lake Grove is a commercial lab for converting liquid meth to solid form. He says the house was equipped with big burners, propane tanks, a large amount of acetone, and five-gallon buckets full of liquid meth. Investigators are trying to find out if the landlord knew what was going on there. Deputies seized about 30 kilos of meth worth up to three-million-dollars.