|
• TAR •
<br /> GROUNDWATER DATA
<br /> THRIFTY OIL STATION#172, STOCKTON, CA
<br /> DATE ANALYTICAL PARAMETERS DEPTH TO DEPTH TO PRODUCT CASING GROUNDWATER
<br /> SAMPLED TPI/ BENZENE TOLUENE EthylRenzene XYLENE MTBE GROUNDWATER PRODUCT THICKNESS ELEVATION ELEVATION
<br /> (13g/L) (ugly) (ug![-) (u0-1 (ugly.) (13910 (Beet) (feet) {feet) (feet) (feet)
<br /> 02/23/00 5,000 1 440 1,240 <12 1,420 *1,28011 110 3869 NP i 000 13 18 -25 51
<br /> 05/10/00 2,140 19 <0 25 <0 25 19 1,350 3065 NP 000 13 18 -1747
<br /> 08/18/00 <50 <5 <5 <5 <5 1 460 3483 NP 000 13 18 -2165
<br /> 11/09/00 <50 <0 18 <0 14 <0 18 <0 26 772 3562 NP 000 13 18 -2244
<br /> 02/15/01 <50 <0 3 <0 2 <0 2 <0 4 976 3182 NP 000 13 18 -1864
<br /> 05/17/01 SAMPLE BROKEN 3869 NP 000 13 18 -25 51
<br /> 05/24/01 239,000 55,800 73,600 10 000 58,600 2,900 - - - 13 18 -
<br /> 08/16/01 151,000 6,880 8,930 927 4 910 367 4023 NP 000 13 18 -2705
<br /> 11/08/01 9,100 341 44 J <2 0 <4 0 5,570 4059 NP 000 13 18 -2741
<br /> 02/21/02 141,000 17,500 26,100 2,850 15,300 932 3751 NP 000 13 18 -2433
<br /> 05/22/02 127,000 18,300 25,100 1,530 11,500 786 3185 NP 000 13 18 -1867
<br /> 08/14/02 49,900 12,100 10,500 <17 8,800 783 3256 NP 000 13 18 -1938
<br /> 11/20/02 5,170 190 18 179 421 32 3409 NP 000 13 18 -2091
<br /> 02/12/03 <15 <0 22 <0 32 <0 31 <0 4 31 3256 NP 000 13 18 -1938
<br /> 05/21/03 61,700 9,820 9,000 1 158 J 4 690 4,500 3947 NP 000 13 18 -2629
<br /> 08/20/03 144,000 2,600 2,910 <15 5 4 360 39,500 3852 NP 000 13 18 -2534
<br /> 11/26/03 38,600 5,670 8,150 397 3,180 127 3926 NP 000 13 I8 -2608
<br /> 02/05/04 61 000 3,550 7 000 5,380 31,400 156 3793 NP 000 13 18 -2475
<br /> 0905/04 62,800 1,630 7 860 592 6,380 25,100 3672 NP 000 13 18 -2354
<br /> 08/11/04 193,000 24,200 30 400 1 1,480 12,200 941 4006 NP 000 13 18 -2688
<br /> 09/30/04 229,000 31,000 33,900 3,400 18 200 736 4090 NP 000 13 18 -2772
<br /> 11/10/04 221,000 26,500 28,800 2,070 13,000 776 4009 NP 000 13 18 -2691
<br /> 02/22/05 23 700 814 727 577 2,180 5 110 3640 NP 000 13 18 -2322
<br /> 05/11/05 124,000 33,100 25,600 1,900 13,000 865 3510 NP 000 1318 -2192
<br /> 08/24/05 37,800 13,100 9,990 571 3,230 779 3641 NP 1 000 1 13 18 -2323
<br /> NOTE ND=Nondetectable
<br /> -"=Not analyzed/Not available Benzene,toluene,ethlybenzene,and xylene analyzed by EPA method 8020
<br /> NP=No free hydrocarbon product Total petroleum hydrocarbons(TPH)analyzed by EPA method 8015 modified for gasoline
<br /> MTBE by 8020 or 8020/8260 Methyl-tert Butyl Ether(MTBE)analyzed by EPA method 8020 or 8260
<br /> On 8/18100 and beginning 2115/01 BTEX and MTBE analyzed by EPA Method 8260B
<br /> 172TABI XLS Page 12 of 12 9/14/2005
<br />
|