X0201 4 2004-03-02 0001057058 WASTE CONNECTIONS INC/DE WCN 0001064310 DUPREAU EUGENE V 35 IRON POINT CIRCLE SUITE 200 FOLSOM CA 95630 1 0 0 0 Common Stock 2004-03-02 4 M 0 11667 25.0625 A 54282 D Common Stock 2004-03-02 4 S 0 11667 37.9067 D 42615 D Common Stock 2004-03-02 4 M 0 11403 27.80 A 54018 D Common Stock 2004-03-02 4 S 0 11403 37.9067 D 42615 D Common Stock 2004-03-02 4 M 0 13334 32.62 A 55949 D Common Stock 2004-03-02 4 S 0 13334 37.9067 D 42615 D Common Stock 2004-03-02 4 S 0 15000 37.9067 D 27615 D Employee Stock Option (Right to Buy) 25.0625 2004-03-02 4 M 0 11667 0 D 2002-01-29 2011-01-29 Common Stock 11667 0 D Employee Stock Option (Right to Buy) 27.80 2004-03-02 4 M 0 11403 0 D 2003-07-18 2012-07-18 Common Stock 11403 0 D Employee Stock Option (Right to Buy) 32.62 2004-03-02 4 M 0 13334 0 D 2004-02-20 2013-02-20 Common Stock 13334 0 D Date exercisable for Option of 35,000 shares, 1/3 exercisable 1/29/02, 1/29/03 & 1/29/04 The zero in Table II, Column 8 is a placeholder only that is required by the Edgar software and should be disregarded. Date exercisable for Option of 34,209 shares, 1/3 exercisable 7/18/03, 7/18/04 & 7/18/05 Date exercisable for Option of 36,935 shares, 1/3 exercisable 2/20/04, 2/20/05 & 2/20/06 Eugene Dupreau 2004-03-04