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Tri Regional Recommendation Page 24 of 24 <br /> Appendix A <br /> TABLE "I - CHECKLIST OF REQUIRED DATA <br /> FOR NO FURTHER ACTION REQUESTS AT UNDERGROUND TANK SITES <br />' Site Name and Location ARCO#2093 3425 Tracy Blvd Tracy,California <br />' 0 1 Distance to production wells for municipal, domestic, agriculture, industry and <br /> other uses within 2000 feet of the site, Table 4 and Figure 1 <br /> 0 2 Site maps, to scale, of area impacted showing locations of any 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, Firgures 1 and 2, <br /> Attachments B through F <br />' 0 3 Figures depicting lithology (cross section), treatment system diagrams, Attachment A <br /> Q 4 Stockpiled soil remaining on-site or off-site disposal (quantity), Attachments F and K <br /> 5 Monitoring wells remaining on-site, fate, Figure 2 -Wells will be destroyed upon NFAR approval <br /> 0 6 Tabulated results of all groundwater elevations and depths to water, Tables 1 and 3 <br />' Y 7 Tabulated results of all sampling and analyses Tables 1 and 2, Attachments B through F <br /> Y Detection limits for confirmation sampling <br />' Y Lead analyses <br /> Q 8 Concentration contours of contaminants found and those remaining in soil <br /> and groundwater, and both on-site and off-site Attachment K <br /> 10 Lateral and Vertical extent of soil contamination <br /> BLateral <br /> Y and Y Vertical extent of groundwater contamination <br /> 1 0 9 Zone of influence calculated and assumptions used for subsurface Not Available(NA) <br /> remediation system and the zone of capture attained for the soil and <br /> groundwater remediation system, <br /> Y 10 Reports 1 information N Unauthorized Release Form NA <br /> Y Well and boring logs Attch A Y QMRs (All) Tables 1 through 3 <br />' N <br /> PAR/FRP NA Y Other Attachments B through J <br /> 011 Best Available Technology (BAT) used or an explanation for not using BAT, <br />' 12 Reasons why background was/is unattainable using BAT, Attachements { and J <br /> Text Page 5, Attachments H, J, and K <br /> 013 Mass balance calculation of substance treated versus that remaining, <br />' Attachment K <br /> 014 Assumptions, parameters, calculations and model used in risk <br /> assessments, and fate and transport modeling, NA <br /> rY 15 Rationale why conditions remaining at site will not adversely <br /> impact water quality, health, or other beneficial uses, and Text Page 7 <br />' Q 16 WET or TCLP results NA <br />' <br /> IBy Mic <br /> Dhael Hall Comments <br /> Date 2123/05 <br /> 1 <br />