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2: Summary of Groundwater Analytical Data - Zone n.
<br />George's Service
<br />1680 Durham Ferry Road
<br />Tracy. California
<br />Wells Date See
<br />N otes
<br />Benzene Toluene Ethyl Total TPH MTBE DIPE ETBE TAME TBA 1,2-DCA EDB
<br />Benzene Xylenes Gasoline
<br />ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L
<br />MW-2 05/04/95 40 57 11 55 530
<br />excavation
<br />09/13/96 FP --
<br />01/17/97 FP -- --
<br />05/05/97 287 548 178 798 6,810 ND<5
<br />09/19/97 743 1,380 455 2,800 18,600 ND<20 ND<20 N0<20 ND<20 ND<1000
<br />02/24/98 FP 384 507 112 574 4,100 ND<2
<br />05/29/98 2,800 5,220 2,200 14,600 334,000 ND<200
<br />11/13/98 450 730 360 2,000 6,400 ND<5 ND<5 ND<5 ND<5 ND<50
<br />04/28/99 2,600 2,400 970 4,300 40,000 ND<5
<br />09/01/99 10,000 12,000 11,000 44,000 890,000 ND<10,000
<br />12/22/99 1,400 3,500 1,100 4,800 44,000 N/A
<br />03/31/00 5,350 11,900 2,710 12,800 89,600 391
<br />06/20/00 3,640 8,280 2,160 9,600 84,800 ND<200
<br />09/20/00 1,650 3,600 1,350 4,990 4,350 247
<br />12/27/00 2,600 7,000 2,020 9,080 88,800 372
<br />03/06/01 2,630 6,350 1,950 9,380 85,100 ND<100
<br />06/20/01 5,260 44,500 42,600 204,000 2,280,000 - -
<br />09/07/01 2,940 10,200 5,980 28,300 450,000 ND<1000
<br />12/03/01 3,930 10,200 3,800 18,700 260,000 ND<1000
<br />02/22/02 2,060 6,010 2,320 11,300 86,600 ND<200
<br />06/05/02 1,140 3,210 1,180 5,610 37,000 193
<br />09/11/02 1,570 4,730 1,650 8,400 54,900 ND<200 --
<br />12/26/02 1,130 3,750 1,210 6,070 45,600 N/A -
<br />03/21/03 1,950 4,390 1,610 7,140 48,500 ND<20
<br />06/06/03 1,230 3,790 1,410 6,400 60,800 ND<20
<br />09/05/03 566 1,480 834 3,290 22,100 116 --
<br />01/03/04 796 2,230 929 4,190 29,100 ND<5 --
<br />04/27/04 463 1,330 671 260 20,400 ND<5 -
<br />07/23/04 927 2,120 648 3,570 32,000 1.9 -- --
<br />11/03/04 484 1,360 777 3,330 32,700 88.8 -- --
<br />01/21/05 920 3,000 1,700 7,600 37,000 ND<50 -- ND<50
<br />04/11/05 1,100 2,400 1,400 5,800 38,000 ND<50 -- 140 --
<br />07/20/05 1,190 1,740 1,270 5,130 32,100 ND<50 -- -
<br />10/30/05 935 1,680 1,610 6,740 51,100 NO.50 ND<50 ND<50 ND<50 N0<500 179 ND<50
<br />01/22/06 3,660 12,500 4,550 20,060 95,400 ND<50 ND<50 ND<50 ND<50 N0<500 218 ND<50
<br />04/28/06 1,110 3,500 2,200 9,240 43,300 ND<50 ND<50 ND<50 ND<50 ND<500 174 ND<50
<br />08/02/06 1,410 3,750 2,120 10,290 49,300 ND<50 ND<50 ND<50 ND<50 N0<500 147 ND<50
<br />10/13/06 664 1,630 1,170 5,150 29,000 ND<50 ND<50 ND<50 ND<50 ND<500 75.0 ND<50
<br />02/07/07 370 770 660 2,900 29,000 20 ND<5 ND.e5 ND<5 ND<50 54 ND<5
<br />04/13/07 750 1,400 1,200 4,100 38,000 31 ND<5 ND<5 ND<5 ND<50 56 ND<5
<br />07/16/07 390 910 1,200 4,600 42,000 18 ND<10 ND<10 ND<10 ND<100 32 ND<10
<br />10/10/07 330 900 820 3,200 24,000 12 ND<10 ND<10 ND<10 ND<100 NO<10 ND<10
<br />01/29/08 470 970 960 3,700 28,000 12 ND<10 ND<10 ND<10 ND<100 22 ND<10
<br />04/21/08 380 620 760 2,700 18,000 18 ND<10 ND<10 ND<10 ND<100 30 ND<10
<br />07/09/08 360 850 1,100 4,200 23,000 18 ND<10 ND<10 ND<10 ND<100 36 ND<10
<br />10/23/08 290 490 1,100 4,000 21,000 ND<10 ND<10 ND<10 ND<10 ND<100 26 ND<10
<br />01/23/09 340 ND<1 730 2,600 19,000 18 ND<10 NO<10 ND<10 ND<100 28 ND<10
<br />06/30/09 600 1,100 1,700 5,800 47,000 24 ND<12 ND<12 ND<12 N0<120 31 N0<12
<br />11/06/09 1,200 3,200 5,500 22,000 210,000 ND<50 ND<50 ND<50 ND<50 N0<500 ND<50 ND<50
<br />04/26/10 200 290 74 2,300 18,000 24 ND<5 ND<5 ND<5 ND<50 47 ND<5
<br />10/22/10 230 290 760 2,000 23,000 24 5.7 N0<5 ND<5 ND<50 39 ND<5
<br />04/26/11 400 460 1,100 2,700 25,000 41 ND<10 ND<10 ND<10 ND<100 60 ND<10
<br />04/16/12 Not Samp ed
<br />10/18/12 300 140 390 1,200 11,000 34 - - 58
<br />01/22/13 250 89 800 2,800 26,000 23 - - 48 --
<br />04/25/13 120 32 210 850 10,000 24 61
<br />08/05/13 76 19 100 630 9,300 11 - 28
<br />10/23/13 210 48 410 1,200 11,000 14 - 22
<br />06/30/14 100 28 210 610 8,400 ND<0.5 - 11
<br />09/10/14 79 31 190 480 4,600 5.1 -- 11
<br />11/20/14 Not Samp ed
<br />01/05/15 43 45 350 1,300 18,000 2.3 -- -- 3.7
<br />04/08/15 8.7 11 170 350 7,200 3.4 - ND<0.5
<br />07/29/15 ND<5 7.4 100 1,400 38,000 6.3 - -- ND<5
<br />10/05/15 ND<0.5 2.8 32 130 3,800 1.4 ND<0.5
<br />01/08/16 2.2 ND<0.5 19 100 7,500 5.4 -- ND<0.5
<br />04/19/16 0.68 ND<0.5 4.5 10 1,900 3.4 3.8
<br />08/01/16 Not Sampled - Well was Dry
<br />11/07/16 No Sampled-Well was Dry
<br />Ground Zero Analysis, Inc. 2 of 9
<br />
<br />8/16/2017
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