Exhibit No. 11 HARDING LAWSON ASSOCIATES GROUP, INC. COMPUTATION OF PER SHARE EARNINGS (In thousands, except per share data) Years Ended May 31, 1997 1996 1995 - ------------------------------------------------------------------------------------------------------------- Average shares outstanding 4,926 4,824 4,684 Net effect of dilutive stock options based on the treasury stock method in fiscal 1997 and the modified treasury stock method in fiscal years 1996 and 1995 27 27 122 - --------------------------------------------------------------------------------------------------------------- TOTAL 4,953 4,851 4,806 =============================================================================================================== Net income $2,404 $ 953 $2,972 =============================================================================================================== Net income per common share $ 0.49 $ 0.20 $ 0.62 ===============================================================================================================