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TAUE 1 - CHECKLIST OF REQUIRED4ATA FOR NO FURTHER ACTION REQUESTS AT UNDERGROUND TANK SITES �. SiteName and Location: William Burkhardt Property,5154 Hogan Lane, Lodi,San Joaquin County 1. Distance to production wells/or municipal, domestic, agriculture, industry Well survey completed by AGE. Approx. and other uses within 2000 feet of the site; 31 domestic and irrigation wells are located within a 2,000 ft. radius. YD 2. Site maps, to scale, of area impacted showing locations of former and existing tank systems, Soil impact is shown on excavation contours and sample locations, boring and monitoring well elevation contours, scaled map in location of gradients, and nearby surface waters, buildings, streets, and subsurface utilities; former gasoline UST. FY 3. Figures depicting lithology(cross section), treatment system diagrams; Cross section of soil boring results was provided. 4. Stockpiled soil remaining on-site or off-site disposal(quantity); Approximately 22 cu. yds. of soil remains on-site in soil stockpile. Analysis revealed low conc. of petroleum. Y� 5. Monitoring wells remaining on-site, /ate; No monitoring wells were installed on-site. The on-site domestic well was sampled and was non-detect for all constituents. NA 6. Tabulated results of al/groundwater elevations and depths to_waterm,._.__.._,. - ..'_. - - —� ED7.Tabulated results of all sampling and analyses: Soil and GW results are presented. The domestic groundwater sample ❑y Detection limits for confirmation sampling was non-detect for VOCs. Residual soil contamination remains in the vicintiy of the UST excavation. FY]Lead analyses 6. Concentration contours of contaminants found and those remaining in soil Sof/contamination is well defined by UST groundwater, and botfnpn-site and off-site: excavation samples and 5 soil brobe Lateral and L I Vertical extent of soil contamination borings. Approximately 11.4 gallons of r Lateral and Vertical extent of groundwater contamination gasoline is believed to be left in 19.5 cu.yds. of soil. No evidence of GW impact. NA 9.Zone o/influence calculated and assumptions used for subsurface NIA remediation system and the zone of capture attained for the soil and groundwater remediation system; Y� 10.Reports/information �y Unauthorized Release Form ❑N QMRs(Dates) EY Well and boring logs Y❑ PAR HN FRP Fy Other(report name)Site Assessment Report(Closure) r FTI 11.Best Available Technology(BAT)used or an explanation fornot using BAT; Limited overexcavation of visibly contaminated soil. NA 12.Reasons why background was/is unattainable using BAT, N/A FNA -.. --M13.Mass balancecalculation of substance treated versus that remaining; Approx. 11.4 gallons of gasoline remain in 19.5 cu,yds. of soil below the former UST. NA 14.Assumptions, parameters, calculations and model used in risk NIA assessments, and fate and transport modeling; ' TI 15.Rationale why conditions remaining at site will not adversely No groundwater impact to nearby domestic well. impact water quality, health, or other beneficial uses;and Concentrations in soil do not pose a threat to water quality. 0 16.WET orTCLP results By-, Comments: Soil contamination remains below the former gasoline UST. An estimated 11.4 gallons of gasoline remain in approx. 19.5 cubic yards of soil below the former tank location. groundwater is located at 60 feet bgs. The Date: on-site domestic well was analyzed for VOCs and reported ND/or all analytes. The remaining contamination does not appear to pose a threat to water quality. Closure concurrence appears warranted. }