CalMat Co., d/b/a Vulcan Materials Company – Mountain West Division

Labor Union:International Union of Operating Engineers, Local 428

Voting Unit (Unit A):INCLUDED: All full-time and regular part-time Electrician 1s, Electrician 2s, Electrician 3s, Mobile Equipment Mechanic 1s, Mobile Equipment Mechanic 2s, Mobile Equipment Mechanic 3s, Fixed Maintenance Mechanic 1s, Fixed Maintenance Mechanic 2s, Fixed Maintenance Mechanic 3s, Equipment Operator 1s, Equipment Operator 2s, Universal Equipment Operator 3s, Aggregate Plant Operator 1s, Aggregate Plant Operator 2s, Aggregate Plant Operator 3s, HMA Plant Operator 1s, HMA Plant Operator 2s, HMA Plant Operator 3s, Utility Worker 1s, and Utility Worker 2s employed at the Employer’s Avondale Sand & Gravel Plant, Coolidge Asphalt Plant, Deer Valley Plant, Glendale Asphalt Plant, Gomez Asphalt Plant, Maricopa Plant, 19th Avenue Asphalt Plant, Peoria Plant, Queen Creek Plant, San Tan Plant, Sun City Plant, Val Vista Plant, and West 43rd Avenue Plant, locations in Maricopa County and Pinal County, Arizona. EXCLUDED: All other employees, office clerical employees, managerial employees, guards, and supervisors as defined in the Act.