<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THERMO TERRATECH INC.'S
QUARTERLY REPORT ON FORM 10-Q FOR THE PERIOD ENDED JULY 1, 2000
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> MAR-31-2001
<PERIOD-END> JUL-01-2000
<CASH> 4,129
<SECURITIES> 0
<RECEIVABLES> 53,510
<ALLOWANCES> 2,236
<INVENTORY> 1,175
<CURRENT-ASSETS> 121,952
<PP&E> 112,473
<DEPRECIATION> 49,855
<TOTAL-ASSETS> 274,017
<CURRENT-LIABILITIES> 76,192
<BONDS> 116,469
0
0
<COMMON> 1,968
<OTHER-SE> 48,993
<TOTAL-LIABILITY-AND-EQUITY> 274,017
<SALES> 0
<TOTAL-REVENUES> 73,099
<CGS> 0
<TOTAL-COSTS> 57,710
<OTHER-EXPENSES> (98)
<LOSS-PROVISION> 6
<INTEREST-EXPENSE> 2,031
<INCOME-PRETAX> 3,610
<INCOME-TAX> 4,285
<INCOME-CONTINUING> (1,049)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (1,049)
<EPS-BASIC> (.06)
<EPS-DILUTED> (.06)
</TABLE>