X0202 4 2006-02-27 0 0000895565 SYNAGRO TECHNOLOGIES INC SYGR 0001309092 Donnini David C/O GTCR 6100 SEARS TOWER CHICAGO IL 60606 1 0 1 0 Common Stock 2006-02-27 4 P 0 263525 4.67 A 12570123 I See Footnote Common Stock 2006-02-27 4 P 0 2413 4.67 A 115081 I See Footnote Common Stock 2006-02-27 4 P 0 18868 4.67 A 899984 I See Footnote By GTCR Fund VII, L.P. ("GTCR Fund VII"). By GTCR Co-Invest L.P. ("GTCR Co-Invest"). By GTCR Capital Partners, L.P. ("GTCR Capital"). GTCR Fund VII, GTCR Co-Invest and GTCR Capital are direct beneficial owners of the shares of the Issuer's Common Stock. GTCR Golder Rauner, L.L.C. ("GTCR"), is the general partner of GTCR Partners VII, L.P., which is the general partner of GTCR Fund VII. GTCR is also the general partner of GTCR Co-Invest. In addition, GTCR is the general partner of GTCR Mezzanine Partners, L.P., which is the general partner of GTCR Capital. The Reporting Person is a principal of GTCR and may be deemed to have an indirect pecuniary interest in the Issuer's Common Stock owned by GTCR Fund VII, GTCR Co-Invest and GTCR Capital to the extent of the Reporting Person's direct and indirect proportionate general partnership interests in GTCR Fund VII, GTCR Co-Invest and GTCR Capital. The Reporting Person disclaims beneficial ownership of shares held by GTCR Fund VII, GTCR Co-Invest and GTCR Capital. /S/ David A. Donnini 2006-04-06