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TABLE 2
<br /> GROUNDWATER ANALYTICAL DATA
<br /> Knowles-Roek
<br /> Stockton,California
<br /> Page 15 of 15
<br /> (in pints per billion)
<br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE
<br /> "v w-4 5/23/2002 1,600 23 82 82 10 120
<br /> Cont'd 8/26/2002 Not Sampled
<br /> 11/14/2002 2,500 41 11 34 74 <2 0
<br /> 2/19/2003 Not Sampled
<br /> 5/29/2003 1,900 25 80 1 26 65 <2.0
<br /> 8/27/2003 Not Sampled
<br /> 11/20/2003 1,90047 15 38 94 <2 0
<br /> 2/25/2004 Not Sampled
<br /> 5/21/2004 830 20 66 1 21 40 <2 0
<br /> 8/25/2004 Not Sampled
<br /> l 1/18/2004 710 17 71 14 30 <1 0
<br /> 2/24/05- Not Sampled
<br /> 3/7/2006
<br /> VW-5 2/2/2000 2,200 25 13 28 12 <5 0
<br /> 2/2/2000 800 12 24 26 17 <5 0
<br /> 5/11/2000 920 18 35 47 78 <5 0
<br /> 8/16/2000 1,100 86 29 76 32 <5 0
<br /> 11/20/2000 400 13 is 68 77 <5 0
<br /> 3/8/2001 660 39 10 5 1 17 <2 0
<br /> 5/24/2001 940 82 23 10 33 <2 0
<br /> 8/30/2001 Not Sampled
<br /> 12/7/2001 500 41 10 1 36 43 <2 0
<br /> 2/20/2002 Not Sampled
<br /> 5/23/2002 2,400 <0 5 13 1 21 380 <2 Q
<br /> 8126/02- Not Sampled
<br /> 3/7/2006
<br /> VW-6 11/18/1997 -- -- -- -- -- <135
<br /> 2/25/1998 141000,000 6,600 43,000 100,000 720,000 <30
<br /> 2/3/2000 28,000 420 840 410 2,600 <50
<br /> 5/11/2000 11,000 410 920 250 1,400 <100
<br /> 8/17/2000 35,000 640 1,200 700 4,100 <100
<br /> 11/21/2000 43,000 580 1 1,700 710 3,900 <40
<br /> 3/8/2001 63,000 1,500 8,900 1,200 7,200 <100
<br /> 5/25/2001 68,000 1,200 9,000 1,500 9,000 <100
<br /> 8/30/2001 Not Sampled
<br /> 12/7/2001 50,000 400960 730 3,800 <50
<br /> 2/20/2002 Not Sampled
<br /> 5/23/2002 13,000 10 51 43 1,500 <40
<br /> 8/27/2002 40,000 590 810 1,100 5,300 <20
<br /> 11/14/2002 54,000 680 1,200 1,400 7,400 <100
<br /> 2/19/2003 Not Sampled
<br /> 5/29/2003 41,000 510 780 1 1,200 4,900 <100
<br /> 8/27/2003 Not Sampled
<br /> 11/20/2003 180,000 24,000 34,000 1 3,400 22,000 <40
<br /> 2/25/2004 Not Sampled
<br /> 5/21/2004 29,000 880 1 920 t 2,000 7,300 <100
<br /> 8/25/2004 Not Sampled
<br /> 11/18/2004 34,000 980 1,500 1 730 2,200 <10
<br /> 2/24105- Not Sampled
<br /> 3/7/2006
<br /> NOTES
<br /> TPHy Total petroleum hydrocarbons as gasoline
<br /> MTBF Methyl tert butyl ether
<br /> < = Less than indicated detection limit
<br /> Not Analyzed
<br /> • Gasoline is primarily composed of benzene
<br /> *• Gasohne is primarily composed or methyl test butyl ether
<br />
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