Exhibit 11 THERMO REMEDIATION INC. Computation of Earnings per Share Year Ended ----------------------------- March 30, 1996 April 1, 1995 -------------- ------------- Computation of Primary Earnings per Share: Net Income (a) $ 5,444,000 $ 3,643,000 ----------- ----------- Shares: Weighted average shares outstanding 12,393,712 10,007,294 Add: Shares issuable in connection with acquisition of Thermo Fluids - 107,774 Shares issuable from assumed exercise of options (as determined by the application of the treasury stock method) - 118,719 ----------- ----------- Weighted average shares outstanding, as adjusted (b) 12,393,712 10,233,787 ----------- ----------- Primary Earnings per Share (a) / (b) $ .44 $ .36 =========== =========== PAGE Exhibit 11 THERMO REMEDIATION INC. Computation of Earnings per Share (continued) Year Ended ----------------------------- March 30, 1996 April 1, 1995 -------------- ------------- Computation of Fully Diluted Earnings per Share: Income: Net income $ 5,444,000 $ 3,643,000 Add: Convertible debt interest, net of tax 62,000 - ----------- ----------- Income applicable to common stock assuming full dilution (c) $ 5,506,000 $ 3,643,000 ----------- ----------- Shares: Weighted average shares outstanding 12,393,712 10,007,294 Add: Shares issuable from assumed conversion of subordinated convertible obligations 269,583 - Shares issuable in connection with acquisition of Thermo Fluids - 107,774 Shares issuable from assumed exercise of options (as determined by the application of the treasury stock method) 492,437 118,719 ----------- ----------- Weighted average shares outstanding, as adjusted (d) 13,155,732 10,233,787 ----------- ----------- Fully Diluted Earnings per Share (c) / (d) $ .42 $ .36 =========== ===========