The U.S. Environmental Protection Agency has filed a 13-count complaint against an Oklahoma company for alleged hazardous waste violations at a facility near Clive, Tooele County.

The complaint stems from an inspection in February of United States Pollution Control Inc.'s Grassy Mountain Facility and a later review of the company's files, EPA officials in Denver announced Tuesday.Two of the alleged violations deal with storage of hazardous waste in open drums and failure to properly maintain safety equipment.

The other 11 counts involve USPCI's alleged failure to supply "treatment standards" to hazardous waste treatment facilities in Kansas, Oklahoma, Texas and Arkansas where USPCI sent shipments of hazardous waste for further treatment or processing.

The company was given 30 days to file a written answer to the complaint.