X0303 4 2011-06-14 0 0000911177 CASELLA WASTE SYSTEMS INC CWST 0001055352 CASELLA JOHN W C/O CASELLA WASTE SYSTEMS 25 GREENS HILL LANE RUTLAND VT 05701 1 1 0 0 Chief Executive Officer Restricted Stock Unit 2011-06-14 4 A 0 22993 0 A Class A Common Stock 22993 22993 D Represents the award of Restricted Stock Unites ("RSUs") under the Casella Waste Systems, Inc. ("Casella") 2006 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal annual installments beginning on June 14, 2012. These RSUs will be reported upon vesting pursuant to Section 16(a) of the Securities Exchange Act of 1934 and applicable regulations thereunder. /s/ Shelley S. Rogers, Attorney in Fact for John W. Casella 2011-06-14