EXHIBIT 12.1 SYNAGRO TECHNOLOGIES, INC. STATEMENT SETTING FORTH DETAIL FOR COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) <Table> <Caption> THREE MONTHS YEAR ENDED DECEMBER 31, ENDED ------------------------------------------------------------- MARCH 31, 1997 1998 1999 2000 2001 2002 ------- ------- ------- ------- ------- ------------ EARNINGS Income before provision for income taxes from continuing operations.............. $ 1,116 $ (537) $ 1,148 $ 6,551 $20,237 $2,308 Fixed charges ............................. 1,182 1,908 3,687 20,182 28,551 5,893 Amortization of capitalized interest ...... -- -- -- -- -- -- ------- ------- ------- ------- ------- ------ 2,298 1,371 4,835 26,733 48,788 8,201 ------- ------- ------- ------- ------- ------ FIXED CHARGES (a) Interest expense and amortized loan costs ................. 1,007 1,558 3,236 18,908 26,969 5,493 (b) Estimate of interest within rental expense (33%) ................. 175 350 451 1,274 1,582 400 ------- ------- ------- ------- ------- ------ 1,182 1,908 3,687 20,182 28,551 5,893 EARNING (DEFICIENCY) TO FIXED CHARGES ........ (537) RATIO OF EARNINGS TO FIXED CHARGES ........... 1.94 0.72 1.31 1.32 1.71 1.39 </Table>