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r � r rr rrrr �r r r r r r rr rr <br /> EI <br /> SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA <br /> SHOP 10 MAINTENANCE STATION <br /> STOCKTON,CALIFORNIA <br /> roc Depth To Ground- TPH-G TPH-D Benzene Toluene Ethyl- Total MTBE <br /> Well[A ©ate Elevation Ground- Water ( ) { } W/O (PO) Benzene Xylcnea � } <br /> Water Elevation W) W) <br /> VM-2 __ 8125!98 4985 - 8 600__ <5000 5,600 _ 550_ 750 570 <06(<1 0) <br /> __VM-2 _ 1212/98_ __ _ 4933 - _ 4200 730_ 5_10 280 150 150 6(<! 0) <br /> VM-2 _ 3130199_ 2174 4604_ -2430 _44 700 4 100 7 500 2700 J 120 2 940 <0 6 <br /> MW-25_ 10/23/96 21 95 5990 -3795 60 <50 50 ___50 _ _ I 0 _6 1 <0 5 <br /> _MW 25 _5/22/_97 _�21 95 5484 -32 89 <500 <500 <0 3 _ <0 3 <0 6 T <0 6 <0 6 _ <br /> _MW_-25 __9125/97 2195 _ 5728 -35 33 <500 <500 <0 3 <03- _ _ <0 6 _ _<0 6 <0 6 <br /> MW-25 __12/19/97_ 21 95 5642 -3447 <50 T <505_00 <0 5 _ _<0 <0 5 _ <1 _ _<5 <br /> —MW-25-_ _3116/98_ 21 95 52_84 -3089 <50 <50 <0 5 <0 5 <0 5 <I <5 <br /> MW-25-_ 6115/98 _ 2195 _ 49 19 -2724 <500__ <5000__ T<0_3_ <0 3 - <0 6 - - <0 6- - <5 <br /> _MW 25 8125198_ 2195 _ _ 4978 -2783 <500 <5000 <0 3 -- --<0 3 <0 6 _<0 6 _ <0 6(<1 0) <br /> MW-25 _ 12/2/_98_ 2195 __4926 _ 2731 <500 _ <400 ___18 20 -2 - -_ 11 0 <1 0(<I 0) <br /> MW-25 411199_ _ 2192 4589 -2397 _ <100 <100- <0I <02 <01 <01 <06 <br /> _MW 26 10/24/96 2121 5958 _ -3837 100 - - <50 <0 5 -_ <0 5 <0 5 ___ <0_5 - --_ 5 l _ <br /> M W 26 _ 5/22/97 2121 ___5457 -33 36 <500 _ <500--- —1-- <0 3 <0 6 <0 6 <0 6 <br /> _ <br /> MW-26� 9/25/97 2121 _ 56 81-- -3560 <500 <500 _ <03 --- <0 3 -- - <0 6 - - - <0 6 v <0 6 <br /> M W-26__12129/97 21 21 5616__ 34 95 <50 <5000 <0 5 -- <0 5-- - -<0 5� -- 1 2 - <5- <br /> M_W-26 3/16/98 2121 5261 _- -3140 <50 _ 92_ <0 5 _ <0 5--- -_ <0 5 -- !-2 -- <5 <br /> MW-26 __6115/98 2121 _ 4883 -2762 <50_0� <5000 <0 3 v<0 3 <0 6 <0 6 T - - <S <br /> �MW-26 813198 Well Abandoned -- - - -- -- - _ - - �- <br /> Notes <br /> TOC=Top or casing elevation MSL= Mean Sea Level <br /> TPHG=Total Petroleum Hydrocarbons as Gasoline by EPA Method 8015M <br /> TPHD=Total Petroleum Hydrocarbons as Diesel by EPA Method 8015M <br /> BTEX=Benzene Toluene Ethylbenzene and Total Xylenes by EPA Method 8020 <br /> MTBE=Methyl Tertiary Butyl Ether by FPA Method 8020 <br /> <=Less than method detection limit <br /> --- =Not me-isured sampled tested or present <br /> All Mundwater level measurements are presented in feet <br /> mgA=milligrams per liter <br /> pgn=micrograms per liter <br /> (<5)-MTBE concentration as calculated by EPA Method 8260 <br /> NR denotes Not Reported <br /> A'T after the laboratory result indicates that the compound was detected above the method detection limit but below the laboratory reporting limit <br /> All data prior to 111199 was provided by the previous consultant(PSI) <br /> i�iz z,n eio,i. Page 7 of 7 <br />