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Qw f� <br /> GROUND ZERO ANALYSIS, INC. <br /> 1714 Main street 1 J 7 <br /> Escalon, California 95320-1927 <br /> Telephone: (209) 838-9888 <br /> Facsimile: (209) 838-9883 ENVIRONMENTAL HEALTH DIVISION <br /> 304 E. Weber Ave. Third Floor <br /> P. O. Box 388, Stockton CA 95201-0388 <br /> October 13, 1999 Approved BT r Denied ❑ <br /> ' , t Conditions <br /> Mr. Jeffrey Wong Date 11 Z3 011111 by <br /> San Joaquin County Public Health Services, <br /> Environmental Health Divisions �)T <br /> Stockton, CCAS 7 h r <br /> E. Weber Ave3rd Fl. AHO-0 rC-o -5ZHEDU Lw oPV.. <br /> Stockton, CA 952022 2. Su6mIT f-EE 4 ERMI'f P,?PLI<-A710N <br /> Subject: Harry's Auto Mart SC-FoRE COiAK&JC[13 i TF IC- Trw cD <br /> 2662 N. Wilson Way, Stockton, CA (Site Code: 1306) w or—K <br /> Workplan for Subsurface Investigation <br /> Dear Mr. Wong: <br /> We are writing on behalf of John and Maxine Ferraiolo to provide you with a workplan to <br /> investigate the extent of soil contamination and to determine if groundwater has been impacted <br /> from leaking underground storage tanks (USTs) at the subject facility. The location of the site <br /> is shown on Figure 1. A site plan is depicted on Figure 2. <br /> Background <br /> On April 12, 1989 four USTs (one 2,000 gallon, two 550 gallon and one 300 gallon) were <br /> removed from the subject site by North Cal Construction of Stockton, California. The contents <br /> of the USTs apparently had consisted of gasoline. One soil sample was collected from beneath <br /> each of the smaller USTs at depths ranging from 9 to 10 feet. Two samples were collected at <br /> depths of 11.5 feet from beneath the 2,000 gallon UST. In addition one soil sample was <br /> collected from a depth of 3 feet beneath a product line. The samples were submitted to State- <br /> Certified FGL Environmental Laboratories for analysis. Each sample was analyzed for total <br /> petroleum hydrocarbons (TPH) using modified EPA Method 8015; for benzene, toluene, <br /> ethylbenzene and xylenes (BTEX) and ethylene dibromide (EDB) by EPA Method 8020 and for <br /> total lead by EPA Method 7420. <br /> Elevated concentrations of TPH and BTEX were detected in the samples collected from beneath <br /> Tank #1, Tank #2 and the product line. No detectable concentrations of TPH or BTEX were <br /> harryslworkplan Post-It®Fax Note 7671 Date !411 pages <br /> To From <br /> Co./Dept. Co. S/ ' <br /> Phone# Phone# <br /> Fax# 3e 9 G 3 Fax# v <br />