Exhibit No. 11 HARDING LAWSON ASSOCIATES GROUP, INC. Computation of Per Share Earnings (In thousands, except per share data) (Unaudited) Three Months Ended Six Months Ended November 30, November 30, 1996 1995 1996 1995 - -------------------------------------------------------------------------------- PRIMARY Average shares outstanding 4,980 4,845 4,933 4,803 Net effect of dilutive stock options based on the modified treasury stock method using the average market price 16 26 25 34 - -------------------------------------------------------------------------------- TOTAL 4,996 4,871 4,958 4,837 ================================================================================ Net income $ 750 $ 959 $ 976 $1,894 ================================================================================ Net income per share $ 0.15 $ 0.20 $ 0.20 $ 0.39 ================================================================================