0000823768-07-000187 4/A 1 20070715 20070723 20070723 WASTE MANAGEMENT INC 0000823768 4953 731309529 DE 1231 1001 FANNIN STREET STE 4000 HOUSTON TX 77002 7135126200 1001 FANNIN STREET SUITE 4000 HOUSTON TX 77002 USA WASTE SERVICES INC 19920703 MORGAN THOMAS I 0001198020 4/A 34 001-12154 07992912 406-471-7816 30541 CARNEY CREEK ROAD BIGFORK MT 59911 4/A 1 doc4a.xml PRIMARY DOCUMENT