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San Joaquin County <br /> °"'" .� Environmental Health Department DIRECTOR <br /> ).• _.-,�-�' •O Donna Heran,REHS <br /> r: 1868 East Hazelton Avenue <br /> Stockton, California 95205-6232 PROGRAM COORDINATORS <br /> Robert REHS <br /> Jeff Carruesoo,REHS,RDI <br /> C ' P Website: www.sjgov.org/ehd Kaley Foley,RENS <br /> Phone: (209)468-3420 Linda Turkatte,REHS <br /> Fax: (209)464-0138 <br /> April 28, 2014 <br /> Gary Stallworth <br /> 602 California Street <br /> Stockton, CA 95202 <br /> Subject: Stallworth Auto Sales <br /> 602 California Street <br /> Stockton, CA 95202 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed <br /> Additional Site Assessment Work Plan, dated 07 March 2014, prepared and submitted by <br /> your consulting firm, Advanced GeoEnvironmenal, Inc. (AGE), on your behalf for the <br /> above-referenced site. In Additional Site Assessment Work Plan, AGE proposed <br /> advancement of three soil probe borings to collect groundwater samples to assess the <br /> down-gradient lateral extent of dissolved hydrocarbons in groundwater. The proposed <br /> soil borings will be located at 548 E. Park Street and 520 E. Park Street, approximately <br /> 115-150 feet northeast from monitoring wells MW-10 and MW-11. <br /> According to a recent email dated 04 April 2014, AGE proposed the following: <br /> AGE will collect soil samples from each proposed soil boring at depths between <br /> 50 feet and 70 feet below surface grade (bsg) to confirm that groundwater <br /> samples are collected from a coarse-grained lithologic unit and not a fine-grained <br /> unit. Soil samples will be collected using a 1.45-inch diameter Geoprobe soil <br /> sampling assembly loaded with a two-foot long acetate sleeve. Soil sample <br /> duplicates will be extruded into plastic bags and field-screened for the presence <br /> of organic vapor using an organic vapor meter (OVM), equipped with a photo- <br /> ionization detector (PID) and the soil was visually classified in accordance with <br /> the Unified Soil Classification System (USCS). <br /> In the event that proposed soil boring locations are not accessible, AGE recommended <br /> alternate soil borings in the City of Stockton sidewalk along Park and North America <br /> Street. The proposed alternate locations are too far for meaningful groundwater samples, <br /> therefore are not approved at this time; please discuss the issue with the EHD if the <br /> borings must be relocated. With these conditions, the EHD approves the work plan as <br /> submitted. Please submit a completed Master File Record form, a Well and Boring <br /> Permit Application form, and a permit/inspection fee of $3,125.0W <br />