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APPENIW3 OF THE TRI-REGIONAL RECOtN ID,.JATIONS <br /> CHECKLIST OF REQUIRED DATA FOR CLOSURE OF UNDERGROUNDT_UNK SITES <br /> CLOSURE DOCUMENT APPLICATION <br /> 1._ZDistance to production wells for municipal, 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 existing tank systems, <br /> excavation contours and sample locations, boring and monitoring well elevation contours, <br /> Y/ gradients, and nearby surface waters,buildings, streets, and subsurface utilities; <br /> 3. Figures depicting lithology(cross section), treatment system diagrams; <br /> 4. N Stockpiled soil remaining on-site or off-site disposal(quantity); <br /> 5. 1VIonitoring wells remaining on-site, fate; <br /> 6. Tabulated data of all ground water elevations and depths to water,- <br /> 7. <br /> ater;7. ✓ Tabulated results of all sampling and analyses: <br /> Detection limits for confirmation sampling <br /> Lead analyses <br /> 8. Concentration contours of contaminants found and those remaining in soil and ground water, <br /> both on-and off-site: <br /> Lateral extent of soil contamination <br /> Vertical extent of soil contamination <br /> Lateral extent of ground water contamination <br /> Vertical extent of ground water contamination <br /> 9 AJ q Zone of influence calculated and assumptions used for the subsurface remediation system <br /> and the gone of capture attained for the soil and groundwater remediation system; <br /> 10tL_Reports/informatwn missing from file <br /> Unauthorised Release Form(URF) <br /> Qhs(Dates) <br /> PAR <br /> FRP <br /> Other(report name) <br /> Welt and boring logs <br /> 11. Best Available Technology(BAT)used or an explanation for not using BAT; <br /> 12.]E�Reasons why"background"was/is unattainable using BAT; <br /> 13. V Mass balance calculation of the substance treated versus that remaining <br /> 14.T Assumptions,parameters,calculations and model used in risk assessments, and fate and <br /> transport modeling; <br /> 15.N P_ Rationale why conditions remaining at the site will not adversely impact water quality, <br /> health,or other beneficial uses;and <br /> 16.�P" WET or TCLP results <br /> Comments- <br />