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TABLE 4 <br /> GROUNDWATER SAMPLE ANALYSES <br /> U-HAUL #709-50, STOCKTON, CA <br /> In µg/1 <br /> ' Sample Date TPH-g Benzene Toluene Ethylbenzene Total <br /> Xylenes <br /> MW-1 Aug-91 1,900 400 25 ND 200 <br /> ' Jan-92 7,600 3,900 1,700 89 440 <br /> Sep-92 8800* 600 430 200 500 <br /> Dec-92 18,000 5,500 1,700 ND (<O 3) 3,500 <br /> ' Mar-93 8,800 3,200 840 ND (<30) <br /> May-93 170,000 32,000 28,000 2,300 11,000 <br /> Sep-94 21,000 5,400 2,600 300 1,100 <br /> ' Dec-94 5,300 64 42 ND (<6.0) 60 <br /> Feb-95 2,100 47 66 ND (<2 0) 28 <br /> May-95 1,100 85 12 ND (<O 60) 5 1 <br /> ' Aug-95 8,600 1,800 31 200 110 <br /> Oct-95 270 18 55 13 95 <br /> Feb-961 60 2 0 091 ND (<O 30) 15 <br /> ' MW-2 Sep-91 600 185 10 0 3 12 <br /> Jan-92 130 28 15 ND 077 <br /> Sep-92 ND (<O 500)* ND (<O 30) ND (<O 30) ND (<O 30) ND (<O 60) <br /> Dec-92 ND (<O 500)* ND (<O 30) ND (<O 30) ND (<O 30) ND (<O 60) <br /> Mar-93 ND (<O 500)* 0 3 ND (<O 30) ND (<O 30) ND (<0 60) <br /> ' May-93 170 40 ND (<1) ND (<1) ND (<1) <br /> Sep-94 2,300 890 180 ND (<6 0) 140 <br /> Dec-94 1,100 54 77 ND (<6 0) 12 <br /> ' Feb-95 480 92 1 1 ND (<O 30) 1 1 <br /> May-95 55 16 038 ND (<O 30) ND (<O 60) <br /> Aug-95 1,800 820 80 42 54 <br />' Oct-95 130 28 14 5 1 23 <br /> Feb-96 ND (<50) 10 0 9 048 2 6 <br /> MW-3 Aug-91 500 50 18 ND 85 <br />' Jan-92 630 36 49 22 230 <br /> Sep-92 2200* 0 6 8.8 0 4 16 <br /> Dec-92 ND (<O 500)* ND (<O 30) ND (<O 30) ND (<O 30) ND (<O 60) <br />' Mar-93 ND (<O 500)* ND (<O 30) ND (<O 30) ND (<O 30) ND (<O 60) <br /> May-93 650 36 3.0 ND (<1) 52 <br /> Sep-94 88 8.9 8 7 3 5 24 <br /> Dec-94 500 97 67 47 35 <br /> Feb-95 630 97 100 11 52 <br /> May-95 88 40 4 0 1 1 45 <br /> Aug-95 ND (<5 0) 1 1 048 ND (<O 30) 15 <br /> Oct-95 54 081 ND (<O 30) 056 2 1 <br /> Feb-96 ND (<50) 28 1 3 9 1 0 86 45 <br /> 1 <br />