Exhibit 11 THERMO REMEDIATION INC. Computation of Earnings per Share Three Months Ended Six Months Ended ----------------------- ---------------------- Sept. 28, Sept. 30, Sept. 28, Sept. 30, 1996 1995 1996 1995 ---------------------------------------------------------------------------- Computation of Fully Diluted Earnings per Share: Net Income $ 974,000 $ 1,330,000 $ 2,002,000 $ 2,510,000 Add: Convertible debenture interest, net of tax 15,000 15,000 31,000 31,000 ----------- ----------- ----------- ----------- Income applicable to common stock assuming full dilution (a) $ 989,000 $ 1,345,000 $ 2,033,000 $ 2,541,000 ----------- ----------- ----------- ----------- Shares: Weighted average shares outstanding 12,893,588 12,314,224 12,863,281 12,229,815 Add: Shares issuable from assumed exercise of options and warrants (as determined by the application of the treasury stock method) 334,769 202,986 377,876 207,312 Shares issuable from assumed conversion of subordinated convertible obligations 269,583 269,583 269,583 269,583 ----------- ----------- ----------- ---------- Weighted average shares outstanding, as adjusted (b) 13,497,940 12,786,793 13,510,740 12,706,710 ----------- ----------- ----------- ----------- Fully Diluted Earnings per Share (a) / (b) $ .07 $ .11 $ .15 $ .20 =========== =========== =========== ===========