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CARDOZA LANE EXPLANATION <br /> TR- p Groundwater grab sample <br /> { _ <br /> <50 0 <br /> 541 SITE 7 <br /> too <br /> � Former residential building <br /> � Former Tire Shop <br /> ? rpm Former fuel LUSTs <br /> i <br /> ' <br /> Commercial ? Residential <br /> Buildings Former waste oil LUST <br /> I o Uridavel d <br /> Commercial TR-4 <br /> Buildings 1,400 ® Former oil water separators,sumps <br /> ' TR-5or hoists <br /> € ❑ 2,300 Res€dential w <br /> © z Former fuel pump island <br /> w TR-7 Basin 1 w <br /> ' 0 1 TR-22 � 7,000 ¢ Chevron fuel pipeline <br /> r 19000 <br /> W 1-.. , <br /> } Isoconcentration contour(ug/Q. dashed <br /> (280) where uncertain <br /> Tracy Express Wash&Lube <br /> ' (Former car wash) TR-27 in <br /> €� TR-25 610 TR 10 R-17 E -- General groundwater flow direction for years <br /> ( 390,000 /r 1,500 3.100 1988 (KE, 1988)and 2003(Secor,2003) <br /> TR-23 �rhJ <br /> V 4 I µ <br /> € E 4400 <br /> TR-24 j„ _��— R 26 77,900 � Tony's Aute Supply (385) <br /> mm43oY 24D00 ' <br /> California <br /> k wn 1 HighwayNotes <br /> Jack€n ® imperial Lea ng LTI3 {Fnrrner -14 tttfg ,� 1Store Patrol <br /> the Box Car 3,200 k former Shell) �P <br /> Wash) �c§� Q n All locations are approximate <br /> TR-1 (5010 Groundwater grab samples collected between 23-25 <br /> c' (Former� - — 6t70 Sh eV' � - September 2003 and the data is considered qualitative <br /> `��b�, •.° Staf€on) ,��� ? All concentrations are in micrograms per liter(ug/L) <br /> TR-17 b TR-18 o/ OTR-20 o TR-21 H = Heavier hydrocarbons contributed to the quantitation <br /> General groundwater flow d€rechons 10,000 32 000 TR-19 ¢50 53Y <br /> (FORMER VIMMY'S TIRE S P 620 L= Lighter hydrocarbons contributed to the quantitation <br /> Chevron P€pef€n WEST GRANT LINE ROAD Y= Sample exhibits chromatographic pattern which <br /> does not resemble standard <br /> i W <br /> {504) w ! (4T4) <br /> ' {574} i Grant Line � ! I rent American Smog Test Cente <br /> Unocal 76 Station ( �, Market u I ® (Former Wheel Country) <br /> (Former Scathes Station) -o � z, � , �� <br /> (2375)' 1 > C/)Unocal 76 Station � w Resident <br /> Former Mob€l Stat€on ' ❑ Monet <br /> { ) Used Cars <br /> , <br /> CL <br /> a <br /> 541 WEST GRANT LINE ROAD <br /> Tracy, California <br /> TPH-JET FUEL IN <br /> 0 120 Feet I{ <br /> SHALLOW GROUNDWATER <br /> `i 1 I Date 12/05/03 Project No 3577 01 Figure 8 <br /> o Approximate scale <br /> r <br /> TreadweIEMb <br /> 1 � <br /> M <br />