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APPENDIX B OF THE TRI-REGIONAL RECO:'VfMENDATIONS <br /> CHECKLIST OF REQUIRED DATA FOR CLOSURE OF UNDERGROUND TANK SITES <br /> CLOSURE DOCUMENT APPLICATION SITE: <br /> 1. Distance to production wells for municipal domestic, agriculture, industry and other uses within <br /> r 2000 feet ofthe site; <br /> L 2 \ <br /> Site maps, to scale, of area impacted showing locations of former and existing tank systems, <br /> excavation contours and sample locations, boring and monitoring well elevation contours, <br /> gradients, and nearby surface waters, buildings, streets, and subsurface utilities; <br /> 3. Figures depicting lithology.(cross section), treatment system diagrams; <br /> 4. Stockpiled soil remaining on-site or off-site disposal (quantity); <br /> �+ 5. Monitoring wells remaining on-site, fate; <br /> r6. Tabulated data of all ground water elevations and depths to water; <br /> 4.. Y <br /> 7. Tabulated results of all sampling and analyses: <br /> Detection limits for confirmation sampling <br /> f Lead analyses <br /> 8. f. Concentration contours of contaminants found and those remaining in soil and ground water, both <br /> Lon- and off-site:X Lateral extent of soil <br /> contamination <br /> L Vertical extent of soil contamination <br /> X Lateral extent of ground water contamination <br /> Vertical extent of ground water contamination <br /> 9. �`�+r Zone of influence calculated and assumptions used for the subsurface remediation system and the <br /> zone of capture attained for the soil and ground water remediation system; <br /> 10. ReporWinformation <br /> Unauthorized Release Form (URF) <br /> QMRs ;(Dates) <br /> PAR <br /> FRP <br /> Other (report name) <br /> CWell and boring logs <br /> 11. Best Available Technology (BAT) used or an explanation for not using BAT; <br /> 12.- - Reasons why "background" was/is unattainable using BAT; <br /> i <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 transport <br /> modeling; <br />{ 15. Rationale why conditions remaining at the site will not adversely impact water quality, health, or <br /> other beneficial uses; and <br /> r� 16. f.}1': WET or TCLP results <br /> Comments: <br /> By: <br /> Dace: <br />