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9-29-1997 9 19AM FROM P 4 <br /> • APPENDIX B OF THE TRI-REGIONAL RECOMMENDATIONS <br /> CHECKLIST OF REQUIRED DATA FOR CLOSURE OF UNDERGROUNDTANK SITES <br /> CLOSURE DOCUMENT APPLICATION <br /> Distance to productzou wells for munncnpal, domestic, agriculture, industry and other uses <br /> within 2000 feet of the site, <br /> 2 Site maps to scale of area impacted showing locations of former and ensting tank systems, <br /> excavation contours and sample locations,boring and moxutonng well elevation contours, <br /> gradients, and nearby surface waters, buildings, streets, and subsurface utilities; <br /> 3 Figures depicting hthology (cross section), treatment system d:,agrams, <br /> 4 Stockpiled soil remaining on-site or off-site disposal (quantity), <br /> 5 Monitoring wells remaining on-site, fate, <br /> 6 Tabulated data of all ground water elevations and depths to water, <br /> 7. Tabulated results of all sampling and analyses: <br /> Detection lmuts for confirmation sampling <br /> Lead analyses <br /> 8 Concentrataoii contours of contaminants found and those remaining m soil and ground water, <br /> both on- and off-site <br /> • Lateral extent of soil contannn tion <br /> Vertical extent of soil eontamnnatioxn <br /> Lateral extent of ground water contamination <br /> Vertical extent of ground water contamination <br /> 9 Zone of influence calculated and assumptions used for the subsurface remediation system <br /> and the zone of capture attained for the soil and groundwater remediation system; <br /> 10 Reports/information mussing from file <br /> Unauthorized Release Form (URF) <br /> QMRa(Dates) <br /> PAR <br /> FRP <br /> Other(report name) <br /> Well and boring logs <br /> 11 Best Available Technology (BAT) used or an explanation for not using BAT, <br /> 12 Reaso=why"background" wasris unattainable using BAT, <br /> 13 Mass balance calculation of the substance treated versus that remaining; <br /> 14 Assumptions, parameters, calculations and model used in risk assessments, and fate and <br /> transport modeling, <br /> 15 Rationale why conditions remaining at the site will not adversely impact water quality, <br /> health, or other beneficial uses, and <br /> 16 WET or TCLP results <br /> comments <br />