You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more. EPA response to RFC: CHEMDAT8, RCRA, SCDM, SCDM Win, SIMS, STF, SPHEM, CHEM9, HHRAP, HHRAPCF, TreatDB, KowWin, PhysProp, Chemfate, Water9, and PBT Profiler Databases (PDF)(7 pp, 164 K) EPA response to the Request for Correction (RFC)