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<br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH Concentration(pg/L)
<br /> Well Elevation to Water Elevation Thickness Ethyl- �
<br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> P2 09/20/01 679
<br /> P2 12/04/01 677
<br /> P2 03/05/02 677
<br /> P2 06/11/02 677
<br /> P2 09/10/02 677
<br /> P2 12/18/02 677
<br /> P2 03/24/03 677
<br /> P2 06/11/03 677
<br /> P2 09/17/03 677
<br /> P2 12/08/03 677
<br /> P2 03/02/04 6 77
<br /> I --
<br /> P2 06/28/04 677
<br /> P2 09/27/04 677
<br /> P2 12/01/04 677 - - -- - _ _ _ _
<br /> RW 1 05/22/90 9 05 3074 -2169 000 2,000 7,500 2,000 9,800 58,000 --
<br /> RW 1 09/25/90 905 3237 -2332 000 7,100 16,000 2,000 9,200 72,000 --
<br /> RW 1 12/19/90 905 3229 -2324 000 9,000 20,000 2,300 11,000 73,000 --
<br /> RWI 01/30/91 905 3267 -2362 000 4,400 13,000 1,700 8,400 57,000 --
<br /> RW I 05/02191 905 32 63 -2358 000 5,700 17,000 2,700 12,000 67,000 --
<br /> RWI 07116-17/91 905 3359 -2454 000 5,100 17,000 1,700 8,100 61,000 --
<br /> RW I 10/15/91 905 3402 -2497 000 7,000 21,000 2,600 12,000 93,000 --
<br /> RWl 01/28/92 905 3236 -2331 000 5,500 18,000 2,500 10,000 66,000 --
<br /> RW 1 04/30/92 905 -- -- -- -- -- __ __ __
<br /> RW 1 08/13/92 905 3393 -2488 000 4,700 19,000 2,500 12,000 92,000 --
<br /> RWl 10/08/92 9 05 3448 -2543 000 2,200 8,400 1,500 6,600 52,000 --
<br /> RW1 02/23/93 9 05 3169 -2264 000 1,800 4,100 1,000 3,900 26,000 --
<br /> RWI 05/18/93 9 05 2974 -2069 000 1,900 7,800 1,300 5,000 36,000 --
<br /> RW I 08/22/93 905 3003 -2098 000 1,800 7,600 1,500 5,800 39,000 --
<br /> RW1 12/30/93 9 05 2938 -2033 000 1,600 2,400 1,300 3,700 20,000 --
<br /> RWI 02/17/94 9 05 28 97 -1992 000 1,000 4,000 1,100 3,600 26,000 --
<br /> RWI 05/10/94 905 2853 -1948 000 1,200 5,300 1,400 5,000 34,000 --
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