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: Hotchkiss Mortuary, 5 W. Highland,Tracy, San Joaquin NA 1. Distance to production wells for municipal, domestic, agriculture, industry and other uses within 2000 feet of the site; 550-gallon gasoline tank NA 2. Site maps, to scale, of area impacted showing locations of former and existing tank systems, removed 6/90 excavation contours and sample locations, boring and monitoring well elevation contours, gradients, and nearby surface waters, buildings, streets, and subsurface utilities, NA 3. Figures depicting lithology(cross section), treatment system diagrams, FTI 4. Stockpiled soil remaining on-site oroff-sitedisposal(quantity); Unknown quantity disposed at unknown location NA 5. Monitoring wells remaining on-site, fate; NA 6. Tabulated results of all groundwater elevations and depths to water, 7-ft bgs in San Joaquin Co. 7.Tabulated results of all sampling and analyses: all soil and groundwater samples were ND for TPH-g, TPH-d,and BTEX. Groundwater samples were ND for MTBE. Y❑Detection limits for confirmation sampling Y]Lead analyses Y� 8. Concentration of contaminants found and those remaining in soil and Contaminated soil limited to the extent of groundwater, on-site: the excavation. Groundwater samples Y Lateral and Y Vertical extent of soil contamination were ND. ❑ Soil boring at 9 and 12-ft bgs was ND for Lateral and Y Vertical extent of groundwater contamination petroleum contaminants U NA 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; FY-1 10.Reports/information YY Unauthorized Release Form 7/30/91 [ QMRs(Dates) 0 Welland boring logs E PAR FNI FRP 0 Other(report name) FY 11.Best Available Technology(BAT)used or an explanation for not using BAT, Removed tank in 1990. 12.Reasons why background wads unattainable using BAT, No contamination found from soil boring at 9 and 12-ft bgs. NA 13.Mass balance calculation of substance treated versus that remaining; HI14.Assumptions,parameters, calculations and model used in risk assessments, and fate and transport modeling; Q15.Rationale why conditions remaining at site will not adversely See comment 12 above. impact water quality, health, or other beneficial uses;and NA 16.INET or TCLP results By: Comments: Originally contamination was detected beneath tank in 1990. However, soil samples, collected from a boring at 9 and 12-ft bgs were ND for petroleum contaminants. The groundwater sample collected Da : at 12-ft bgs, was ND for petroleum contaminants, also.