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CHECKLIST OF REQUIRED..,ATA <br /> FOR NO FURTHER ACTION REQUESTS AT UNDERGROUND TANK SITES <br /> Site Name and Location: PIE Nationwide, 2007 Wilson Way, Stockton, San Joaquin County <br /> -1 1.Distance to production wells for municipal, domestic, agriculture, industry and municipal well 800 ft east of the site, <br /> other uses within 2000 feet of the site; agriculture irrigation well 1,200 ft north of <br /> the site. <br /> 2. Site maps to scale of area impacted shoaling locations of former and existin fank stems. 15,000-gallon diesel tank <br /> excavation contours and sample location boring and monitoring Drell elevationontours- removed 8/91 <br /> gradients._and nearby surface waters. buildings, streets and subsurface utilities; <br /> 3.Figures depicting lithology(cross section), treatment system diagrams; Addendum to the Site Assessment 10/28/97 <br /> FT] 4. Stockpiled soil remaining on-site disposal(quantity); Returned to lined excavation amount unknown <br /> Q5.Monitoring wells remaining on-site, fate; 4 <br /> P-1 25 ft bgs, P-2 50 ft bgs, P-3 and P-4 65 ft bgs <br /> Q6. Tabulated results of all groundwater elevations and depths to water, GW occurs 50 to 60 ft bgs and flows in a north to <br /> northeast direction. Encountered in P-4 at 64 ft bgs <br /> 7.Tabulated results of all sampling and analyses: grab GW samples were collected from P-3 and P-4 only <br /> aDetection limits for confirmation sampling <br /> nN Lead analyses <br /> Na 8. Concentration contours of contaminants found and those remaining in soil Sources of contamination have not been <br /> and groundwater, and both on-site and off-site: determined. Soil contaminated to 50+ft <br /> N Lateral and N Vertical extent of soil contamination bgs. Lateral and vertical extent of ground <br /> Lateral and water contamination has not been <br /> N N Vertical extent of groundwater contamination determined. <br /> FNAJ 9.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 /> 10.Reports/information FlUnauthorized Release Form 9/13/91 EN QMRs(Dates) <br /> n Welland boring logs a PAR 61979197 and 10/97 R FRP tither(report name) <br /> 11_BestAvailable Technology(BAS used or an explanation for not using BAT; Removed tank and excavated soil <br /> 12.Reasons why background waslis unattainable using BA T- 70 and 510µg/1 TPH-d, nondetect for BTEX and grab <br /> hydropunch samples only <br /> 0 13.Mass balance calculation of substance treated versus that remaining; Soil only and extent of contamination assumed <br /> 3,166 gallons TPH-d <br /> FN 1 14.Assumptions,parameters, calculations and model used in risk <br /> assessments, and fate and transport modeling; <br /> 15.Rationale why conditions remaining at site will not adversely <br /> impact water quality, health, or other beneficial uses;and <br /> F 16.WET or TCLP results <br /> By: Comments: The vertical and lateral extent of soil and ground water contamination needs to be <br /> determined at this site. Permanent wells need to be installed and sampled quarterly. Need <br /> Date information concerning the pumping rate for the nearby wells and the extent of their impact on the <br /> direction of ground water flow. Need the direction and gradient of ground water flow. <br />