SITE INFORMATION AND CORRESPONDENCE

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TABLE 1 -CHECKLIST OF REQUIRED DATA FOR NO FURTHER ACTION REQUESTS AT UNDERGROUND TANK SITES Site Name and Location: Delta Packing Company,5950 E Kettleman Lane,Lodl,San Joaquin Co. Y 1.Distance to production wells for municipal, domestic, agriculture,industry On-site domestic%peration well for and other uses within 2000 feet of the site; drinking and fruit processing. Located approx 21 feet away from 500-8 UST, Q2. Site maps, to scale, of area impacted showing locations of former and existing tank systems, SJCEHD casefile contains excavation contours and sample locations, boring and monitoring well elevation contours, this Infonnation. gradients, and nearby surface waters, buildings,streets, and subsurface utilities; Q 3.Figures depicting lithology(cross section), treatment system diagrams; Boring logs Included for two 45-degree slant direct push boreholes. Q 4. Stockpiled soil remaining on-site or off-site disposal(quantity); No soil removal took place at the site. 5. Monitoring wells remaining on-site, fate, No monitoring wells were ever installed on-site.SJCEHD believes there is no potential to impact groundwater. 0 6. Tabulated results of all groundwater elevations and depths to water, No monitoring wells on-site. 7.Tabulated results of all sampling and analyses: SJCEHD provided ail soil sample results that were reviewed. nY Detection limits for confirmation sampling Y]Lead analyses 8. Concentration contours of contaminants found and those remaining in soil Soil contamination Is defined in the vertical and groundwater, and both on-site and off-site: and lateral directions by soil borings and Y❑Lateral and �Y Vertical extent of soil contamination excavation sampling.No mass calculation for soil contamination to be left in place, HLateral and � Vertical extent of groundwater contamination was completed. FMI 9. Zone of influence calculated and assumptions used for subsurface remediation system and the zone of capture attained for the soil and groundwater remediation system; 0 10.Reports/information FYI Unauthorized Release Form 0 QMRs(Dates) most recent 6/16198 mon event 0 Well and boring logs a PAR FRP R Other(report name) 0 11.Best Available Technology(BAT)used or an explanation for not using BAT; No remedial activities took place at the site. CD12.Reasons why background wads unattainable using BA T, D13.Mass balance calculation of substance treated versus that remaining, No Mass balance calculation was performed on soil left in place 14.Assumptions,parameters, calculations and model used in risk assessments, and fate and transport modeling; Q15.Rationale why conditions remaining at site will not adversely SJCEHD believes that the contaminant concentration in impact water quality, health, or other beneficial uses,and soil do not pose a threat to water quality. 16.WET or TCLP results BY Comments: Concentrations of TPHg in soil appear to be localized in the vicinity of the former 500-gallon UST excavation. Contamination does not appear to pose a significant threat to water quality and San Joaquin County Date Environmental Health Division has indicated that this is a soil only case. No groundwater was encountered during field activities. Confirmation soil borings show contamination only in the former tank excavation. No oxygenates.