X0303 4/A 2009-02-01 2009-02-03 0 0000888504 LAYNE CHRISTENSEN CO LAYN 0001017043 OBUS NELSON 1 0 0 0 Common Stock 2009-02-01 4 A 0 1057 0 A 3504 D Stock Option (Right to Buy) 15.78 2009-02-01 4 A 0 654 0 A 2009-02-01 2019-02-01 Common Stock 654 654 D On the Reporting Person's original Form 4 filed on February 3, 2009, the equity awarded to the Reporting Person was incorrectly reported as 1,410 shares of restricted stock rather than 1,057 shares of restricted stock and 654 options. 2,814 of the shares reported are held directly by the Reporting Person and 690 shares are held indirectly by the Reporting Person. Wynnefield Capital Management, LLC, a New York limited liability company ("WCM") is the sole general partner of Wynnefield Partners Small Cap Value, L.P., a Delaware limited partnership (the "Partnership"). The Reporting Person is a co-managing member of WCM, and by virture of his positions with WCM and the Partnership, the Reporting Person has the shared power to vote and dispose of the reported securities owned by the Partnership. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. /s/ Jerry W. Fanska, Attorney-in-Fact for Nelson Obus 2009-02-17