Petroleum Refining Listing Determination Proposed Rule Response to Comment Document, Part 2

PETROLEUM REFINING LISTING DETERMINATIONPROPOSED RULE RESPONSE TO COMMENT DOCUMENTPart II401 M Street, SWWashington, DC 20460Office of Solid WasteU.S. Environmental Protection AgencyJune 1998TABLE OF CONTENTSIII. ................................. III-1TRIMETHYLBENZENE ....................................... III-1B. PAH POTENCY ESTIMATION III-1C. .................................. III-4D. ......................................... III-4E. III-6........................................... III-8G. ................................ III-13H. USE OF THE TCLP III-15I. ................... III-29J. ........................................ III-39......................... III-42............ III-49M. INDIRECT EXPOSURE MODELING ........................... III-51N. ...................................... III-60O.......................................................... III-61P. ............................ III-63Q. DISTANCE TO NEAREST WELL/PLUME CENTERLINE ........... III-63R. ....................... III-66S. ... III-67THE PROBLEM WITH MCLs AS HEALTH-BASED EXIT LEVELSADDITIVE RISKS ACROSS PATHWAYSSURFACE IMPOUNDMENT LINERNON-INGESTION RISKS FROM GROUNDWATER CONTAMINATIONINFILTRATION RATESLANDFILL/SURFACE IMPOUNDMENT ACTIVE LIFE L.POTENTIAL FOR FREE-PHASE FLOW K.WASTE UNIT AREAVOLUME INPUTS AND WASTE FRACTIONSRUNON/RUNOFF CONTROLSSOIL TRANSPORT F.UNCERTAINTY ANALYSESBIODEGRADATIONPLAUSIBLE MANAGEMENTA.HEALTH AND RISK ASSESSMENTSIII. HEALTH AND ...