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TABLE 1 - CHECKLIST OF REQUIRED DATA <br /> FOR NO FURTHER ACTION REQUESTS AT UNDERGROUND TANK SITES <br /> Site Name and Location: Steve's Rentals, 275 East Grantline Road,Tracy, San Joaquin County <br /> FN—] 1. Distance to production wells for municipal, domestic, agriculture, industry and <br /> other uses within 2000 feet of the site; <br /> El2. Site maps. to area impacted showing locations of former and existing tank systems, 1 550-gal waste oil tank <br /> excavation contours and sami2le locations, n i well elevatian _� -removed 1989 <br /> oredieat.2, ^^d nearby orface waters. buildings streets and subsurface utilities: <br /> 0 3. Figures depicting lithology(cross section), treatment system diagrams; Well and boring logs <br /> 0 4. Stockpiled soil off-site disposal(quantity); Excavation at waste oil tank 220 cu yds disposed at GSX <br /> Excavation of trenches 41 cu yds disposed at Forward <br /> 0 5. Monitoring wells remaining on-site, fate; 3 on-site <br /> El6. Tabulated results of all groundwater elevations and depths to water, 6.66 to 8.30 ft bgs Wells screened from 10-20 ft bgs <br /> FYD 7.Tabulated results of all sampling and analyses: <br /> FYIDetection limits for confirmation sampling <br /> Y]Lead analyses <br /> 8. Concentration contours of contaminants found and those remaining in soil off-sife contamination not investigated <br /> and groundwater, and both on-site and off-site: Soil contamination 5100 mg/kg TPH-g, 93 <br /> N Lateral and N Vertical extent of soil contamination mg/kg TPH-g 8 to 9 ft bgs <br /> original MWA 1,500µg11 TPH-g 8.9µg11 TX <br /> N]Lateral and N Vertical extent of groundwater contamination 620 µg11 TPH-g and 48 µg11 TEX 1995 <br /> FN �99....-���,,,,Zone of influence calculated and assumptions used for subsurface <br /> remediation system and the zone of capture attained for the soil and <br /> groundwater remediation system; <br /> 010.Reports/information Unauthorized Release Form 4/6/90 Z QMRs(Dates) 7/93 7/95 11/96 <br /> 0 Welland boring logs PAR ID FRP HN Other(report name) <br /> 'I r l 11.Best Available Technology(BA 7) used or an explanation for not using BAT, Contaminated soil was excavated to g w <br /> Contamination remains at 8 to 9 ft bgs <br /> 0 12.Reasons why background wads unattainable using BAT, Wells screened so cannot determine extent of g w <br /> contamination.Occasional detection in MW-2 <br /> Yl 13.Mass balance calculation of substance treated versus that remaining; Significant amounts of TPH-g and TPH-d <br /> remain <br /> 14.Assumptions,parameters, calculations and model used in risk <br /> assessments, and fate and transport modeling; <br /> ED15_Rationale why conditions remaining at site will not adversely Low to ND concentrations of contamination detected in <br /> impact water quality, health, or other beneficial uses;and gw at MW-2. Contamination in capillary fringeisaturated <br /> zone may be higher for TPH-g and TPH-d. <br /> NA 16.WET or TCLP results <br /> By Comments: Estimated remining mass of contamination: 103 lbs TPH-d,237 lbs TPH-g, 0.15 lbs benzene,0.41 <br /> lbs toluene,0.42 lbs ethylbenzene, 0.73 lbs xylene,609 lbs TPH-o&g. <br /> Date 7 <br />