<ARTICLE>           5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THERMO TERRATECH INC.'S
ANNUAL REPORT ON FORM 10-K FOR THE PERIOD ENDED APRIL 1,2000
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>        1,000

                              
<PERIOD-TYPE>                                 YEAR
<FISCAL-YEAR-END>                             APR-01-2000
<PERIOD-END>                                  APR-01-2000
<CASH>                                                  4,157
<SECURITIES>                                                0
<RECEIVABLES>                                          54,232
<ALLOWANCES>                                            2,695
<INVENTORY>                                             2,001
<CURRENT-ASSETS>                                      137,697
<PP&E>                                                136,267
<DEPRECIATION>                                         66,311
<TOTAL-ASSETS>                                        304,553
<CURRENT-LIABILITIES>                                 106,964
<BONDS>                                               116,454
<PREFERRED-MANDATORY>                                       0
<PREFERRED>                                                 0
<COMMON>                                                1,961
<OTHER-SE>                                             49,609
<TOTAL-LIABILITY-AND-EQUITY>                          304,553
<SALES>                                                     0
<TOTAL-REVENUES>                                      307,329
<CGS>                                                       0
<TOTAL-COSTS>                                         243,382
<OTHER-EXPENSES>                                       56,981
<LOSS-PROVISION>                                          715
<INTEREST-EXPENSE>                                      8,743
<INCOME-PRETAX>                                       (43,858)
<INCOME-TAX>                                            2,522
<INCOME-CONTINUING>                                   (43,326)
<DISCONTINUED>                                              0
<EXTRAORDINARY>                                           107
<CHANGES>                                                   0
<NET-INCOME>                                          (43,219)
<EPS-BASIC>                                           (2.27)
<EPS-DILUTED>                                           (2.27)