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SMTH <br /> ENVIRONMENTAL TECHNOLpGIES CORPQRATION <br /> March 31, 1995 - t <br /> 94-367-010 <br /> Linda Turkatte <br /> San Joaquin County Public Health Services ENV4wN T" ' rAUH <br /> Environmental Health Division PERIVo f I SERVCES <br /> P Q. Box 2009 Tc <br /> I �l <br /> Stockton, CA 95201 <br /> Subject- Stockton Fire Engine Company No 2, 110 West Sonora, Stockton, California, <br /> Site Code 1253 <br /> Ms. Turkatte: <br /> Canome/Smith Environmental Technologies Corporation (SMTH), on behalf of the City of <br /> Stockton, has prepared this response to San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS/EHD) correspondence dated January 30, 1995 regarding <br /> the subject site The site location is shown on Plate 1 The referenced correspondence <br /> addressed certain perceived deficiencies in the Final Remedial Plan (FRP) submitted by <br /> RENSA Industries Inc for the subject site SMTH submits the following response, which <br /> should be considered an addendum to the FRP <br /> Soil Characterization <br /> As requested, SMTH has prepared an(addition:�geolo�giccr�ossection w ich intersects the <br /> area to the north of the former tank pit The orientation of this additional cross section (C-C') <br /> is shown on Plate 2 Geologic cross section C-C' is represented on Plate 3 <br /> Soil bonngs B-4, B-5, and B-6 were located east, south, and northwest, respectively, from the <br /> location of former underground tanks T1/T2/T3 in an attempt to determine the lateral and <br /> vertical extent of soil contamination associated with these tanks Soil samples were collected <br /> at five foot intervals and selected samples, based upon field observations and Photoiomzation <br /> Detector (PID) readings, were analyzed by a state certified laboratory Field evidence <br /> (including PID readings) detected no evidence of hydrocarbon impaction in bonngs B-4 or 13- <br /> 6 Boring B-5 had PID readings of 0 in all samples except those collected at depths of 30 and <br /> 35 feet. Accordingly, only samples collected at those depths in B-5, and samples collected at a <br /> depth of 30 feet to bonngs B-4 and B-6 were submitted for laboratory analyses Analytical <br /> results from these samples detected no petroleum hydrocarbons above method detection limits <br />• 38009-10/FRP-ADD dm <br /> 1710 Main street • Escalon,CA 95320 • (209)838-3507 • fax(209)838-3509 <br /> Engineenng Consulting Remediation Constntcaon <br />