OPERATING ENGINEERS–LOCAL 793, MAY 1, 2013 OPERATING ENGINEERS–LOCAL 793, MAY 1, 2013 March 9, 2013 Katrina D OPERATING ENGINEERS–LOCAL 793, MAY 1, 2013 OPERATING ENGINEERS–LOCAL 793, MAY 1, 2013 OPERATING ENGINEERS–LOCAL 793, MAY 1, 2013 Operating Engineers L793 Wage Schedules for Board Areas 8 and 18. Download Effective May 1st 2013. March 9, 2013 Categories:Implementation Rates