X0303 4/A 2010-10-22 2010-10-26 0001057058 WASTE CONNECTIONS, INC. WCN 0001230346 EDDIE DAVID 2295 IRON POINT ROAD SUITE 200 FOLSOM CA 95630 0 1 0 0 VP and Corporate Controller Common Stock 2010-10-22 4 M 0 13631 22.01 A 50132 D Common Stock 2010-10-22 4 S 0 13631 40.6292 D 36511 D Common Stock 2010-10-22 4 M 0 17256 23.17 A 53767 D Common Stock 2010-10-22 4 S 0 17256 40.6292 D 36511 D Common Stock 2010-10-22 4 M 0 3870 22.01 A 40381 D Common Stock 2010-10-22 4 S 0 3870 40.6292 D 36511 D Common Stock 2010-10-22 4 M 0 11244 23.17 A 47755 D Common Stock 2010-10-22 4 S 0 11244 40.6292 D 36511 D Employee Stock Option (Right to Buy) 22.01 2010-10-22 4 M 0 13631 0 D 2005-10-27 2015-02-23 Common Stock 13631 0 D Employee Stock Option (Right to Buy) 23.17 2010-10-22 4 M 0 17256 0 D 2007-02-14 2016-02-14 Common Stock 17256 0 D Employee Stock Option (Right to Buy) 22.01 2010-10-22 4 M 0 3870 0 D 2005-10-27 2015-02-23 Common Stock 3870 0 D Employee Stock Option 23.17 2010-10-22 4 M 0 11244 0 D 2007-02-14 2016-02-14 Common Stock 11244 0 D The zero in Table II, Column 8 is a placeholder only that is required by the EDGAR software and should be disregarded. This option was previously reported as an option for 9087 shares of common stock at an exercise price of $33.01 per share, but was adjusted to reflect WCI's 3-for-2 stock splits in the form of a 50% stock dividend effective March 13, 2007. Accordingly, on March 13, 2007, the date the stock dividend was paid, the option became exercisable for 13,631 shares at an exercise price of $22.01 per share. Option for 17,256 shares, 1/4 exercisable 2/14/07, 2/14/08, 2/14/09 and 2/14/10. This option was previously reported as an option for 35,913 shares of common stock at an exercise price of $33.01 per share, but was adjusted to reflect WCI's 3-for-2 stock splits in the form of a 50% stock dividend effective March 13, 2007. Accordingly, on March 13, 2007, the date the stock dividend was paid, the option became exercisable for 53,870 shares at an exercise price of $22.01 per share. Option for 11,244 shares, 1/4 exercisable 7/14/07, 2/14/08, 2/14/09 and 2/14/10. Acqusition and sale of these nonqualified options were mistakenly omitted from the original form 4 filings for Non-Deriative Securities, but were correctly reported on the Deriative Securities table. David Eddie 2011-01-19