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t_ _ TABLE 4
<br /> ANALYTI'CAL RESULTS OF HISTORICAL GROUND WATER SAMPLES
<br /> TPH and BTEX
<br /> - West Clay Property
<br /> - - - 639.West Clay Street, Stockton, California
<br /> - Well ID Depth to TPH as TPH as MTBE Benzene Toluene Ethyl X lens -
<br /> Date y
<br /> _ Screen interval ound water Gasoline Diesel benzene
<br /> MW-1- 04/04/94 3630 - 18,000 3,OOOK =NA 2,500 150 630 1,200
<br /> - _ -(40-60)_ - 12/16/94- _ 3767 - --NS NS NS - NS NS NS NS ;
<br /> 03/31/95 3089 NS NS - NS- - ,NS NS NS NS r
<br /> _ 10/31/95 2924 -400 NA - NA r 460 <0 5 15 13
<br /> 05/06/96 2482 NS NS NS NS NS , NS NS
<br /> 05/27/97 -2185 500 130 <5 80 51 19 44
<br /> _ 11/17/97 2355 820 200 <5 - 160 60 47 35
<br /> - - - -r 02/26/98 1874 550' 93 <5 150 11 35 47 J
<br /> - _ -
<br /> --08/31/98 1776-- _ 24,000 2,100 <200 5,200 230 -1,400 1,200 -
<br /> _ 02/09/99 -1118 1,400 71 <8 28- 3.8 64 23
<br /> ` = 05/28/99 - z 1730 - 3,900 650 <10 1,100 56 290 260 -
<br /> - 10/28/99 = 1926 1,900 470 <50 480 93 130 42 ;
<br /> 01125100- ; '-,19 06}5 3,100 320 <5 860 15 220 45
<br /> s - 07/13/00 ---17-55 - 3,100 340 _ <10 650 14 210 87 F,
<br /> - _
<br /> 12/18/00- 18 93µ' -1,8001_ 280 = <10 310 - - 16 - _-,120 87 3
<br /> 03/13/01 18 04= - = 820 - 90 <15 140 18 _ 39 29 -
<br /> - - 05/30/01 _ 1846 ' 6,700 700 <30 1,600 43 -530 190 ;
<br /> 08/28/01 19 79 9,900 1,300 <300 2,300 69 820 240
<br /> _ 11/28/01 = 20 43 _ 11,000 2,400 <230 2,300 62 940 260
<br /> ' 02/27/02 _ 1876 990 170 <10 160 53 60 12
<br /> T 05/28/02 G 1905- 5,400 580 <50 , 1,000 4 _ 23 350 140
<br /> =09103102 2043 --- 7,400 1,300 <300 1,500 29 - 95 230 -
<br /> - - J 12/26/02 - - 2056 470 - 310 NA <0 5 _ <0 5 ; <0 5 069
<br /> ` 03/14/03 1996 _8,600 - 860 NA 1,300 60 700 310
<br /> 06/19/03 1980 5,500 <50 _ NA 2,400 340 2,200 - 1,400
<br /> 09/12103 ,-`20 83 22,000 <50 NA 5,300 - 400 '- `2,800 = 5,140 '
<br /> - 11/13/03 2104 -6,200-�= - <50 - 1,800 110 - 790 - 522
<br /> r _ NA _
<br /> Advanced GeoEnvironmental,Inc -y
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