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<br /> TABLE 1 - CHECKLIST OF REQUIRED DATA
<br /> FOR NO FURTHER ACTION REQUESTS AT UNDERGROUND TANK SITES
<br /> Site Name and Location: Former Beacon Station#695, 900 S.Cherokee Lane, Lodi, San Joaquin County
<br /> yD 1. Distance tc production wells for municipal, domestic, agriculture, industry and 1 municipal well 2,600 ft and 1 domestic
<br /> other uses wihin 2000 feet of the site; well 5,300 ft.
<br /> 2.-Site maw to scale of area impacted showing locations of former and existing tank sygtems. 16 tanks containing
<br /> excavation contours and sample locations, boring and monitoring well elevation contours. gasoline, diesel,and waste
<br /> gradients. and nearby surface waters buildings streets and subsurface utilities; oil and unknown substances
<br /> were removed in 86 8 94.
<br /> 0 3.lures depicting lithology(cross section), treatment system diagrams:
<br /> Q 4. Stockpiled soil remaining on-site or off-site disposal(quantity); 2641 yd3 disposed at Ben's Truck and Equipment, Red
<br /> Bluff
<br /> 5. Monitoring wells remaining on-site, fate; 32 monitoring wells and 5 soil vapor extraction(SVE)wells need to be
<br /> destroyed, 7 SVE destroyed.
<br /> Q6. Tabulated results of all groundwater elevations and depths to water, 51 to 68-ft bgs
<br /> FYD 7.Tabulated insults of all sampling and analyses:
<br /> aDetection limits for confirmation sampling
<br /> FN Lead analyses
<br /> YD 8. Concentration contours of contaminants found and those remaining in soil
<br /> and groundwater, and both on-site:
<br /> FYI Lateral and yy Vertical extent of soil contamination
<br /> FYI Lateral and yI Vertical extent of groundwater contamination
<br /> -1 9.Zone of influence calculated and assumptions used for subsurface Recovery Wells removed 194 gallons of
<br /> remediation system and the zone of capture attained for the soil and free product,SVE removed 19,885 gallons
<br /> groundwater -emediation system; petroleum hydrocarbons
<br /> 0 10.Reports/information 1(❑Unauthorized Release Form 0 QMRs(Dates) 6/20197
<br /> a Well and boring logs ❑N PAR y❑ FRP 4/27/95 ON Other(report name
<br /> 0 11.Best Available Technology(BA 7)used or an explanation for not using BAT; Tanks removed 86-94, removal of free
<br /> product 89-91,SVE 91 to 96
<br /> 0 12.Reasons why background was is unattainable using BAT, 22,474 gallons of petroleum hydrocarbons have been
<br /> removed.
<br /> 0 13.Mass balance calculation of substance treated versus that remaining, Remaining contamination:4,456 gallons TPH-d,
<br /> 2,000 gallons TPH-g,and 2.7 gallons benzene
<br /> 0 14.Assumptions,parameters, calculations and model used in risk RSCA Tier 1 and 2
<br /> assessments, and fate and transport modeling;
<br /> F15.Rationale why conditions remaining at site will not adversely Significant concentrations and quantity of contamination
<br /> impact water ruality, health, or other beneficial uses;and remain,but there are no nearby drinking wells SVE has
<br /> reached asymptotic levels for removal of contaminants.
<br /> Two small plumes on-site.
<br /> NA 16.WET or TC'LP results
<br /> By: Comments:Remaining Soil Contamination: 5,700 mg/kg TPH-g, 17,000 mg/kg TPH-d, 18 mg/kg benzene,
<br /> 200 mg/kg toluene, 130 mg/kg ethylbenzene, 650 mg/kg xylene.
<br /> Date, Remaining Groundwater contamination: 430 µg/I TPH-g, 7,600 µg/I TPH-d, 5.8 µg/I benzene, 8.1 µg/I
<br /> /Q toluene, 1.4 gg/I ethylbenzene, 8 µg/1 xylene., and ND for MTBE.
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