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Table B-I: Historical Grounthrater Measurements and Ana ytical Results <br />DEPTH TO <br />GROUNDWXFER <br />(Feet hgs) <br />GROUNDWATER <br />ELEVATION <br />(Feet ms1) <br />SAMPLE <br />LOCATION <br />DATE <br />SAMPLED <br />ETHYL- <br />BENZENE 1 Ell-k 1T11-N1() T81 1-D TPH-G BENZENE TOLUENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DCA E DB No p Iii Ira Ic ii <br />Method 8015M 8015M 8015M 002113 0021B 9021B 80218 8260B 02608 0260B 0260B 80I5M 826013 8260B 826013 <br />top of casing <br />elevation 56 pg/1...2 5 PO! 12 pp/Li 150 pg L NICL None None 1.0 mg/L 300 pg L 1,750 RAL 13 pg/L None None None 0.5 pg.,L 0.05 pg.L <br /><5 <5 <5 < 50 <5 <br />< 0.5 < 0.5 < 0.5 <5 0.5 <br />< 0.5 < 0.5 < 0.5 <5 < 0.5 <br />05 MW-6 12/19/03 48.17 -29.45 NA NA NA 7,800 2,100 50 50 820 NA N4 <br />NA 9,300 1400 < 20 20 540 < 0.5 18.72 03/24/04 46.77 -20.05 NA NA NA NA <br />5,600 < 20 < 20 81 06/09/04 46.90 -20.10 NA NA NA 630 < 0.5 NA NA <br /><5 <5 <5 <5 08/23/04 4811 -29.39 NA NA NA 3,400 180 10 10 29 05 50 NA NA <br />12/29/04 NA NA 3,800 40 10 10 < 20 < 0.5 0.5 48.65 -29.93 NA < 0.5 .0 0.5 <5 0.5 NA NA <br />03/23/05 47.50 -28.78 NA NA NA 1,400 16 0.5 1.1 6 < 0.5 < 0.5 < 0.5 < 0.5 <5 < 0.5 NA NA <br />< 06/29/05 NA NA 760 18.1 0 0.5 1.2 3.7 < 0.5 < 0 1 46.00 -27.28 NA 05 NA NA NA <br />.0 0.5 09/21/05 46.97 -28.25 NA NA NA 602 10.8 0.5 3.3 < 0.5 <I < <I <5 NA NA NA <br />NA <br />NA <br />NA <br />NA <br />0.7 4.7 < < 12/20/05 47.62 -28.90 NA NA NA 440 18.7 < 0.5 0.5 I 37 1 < 0.5 <br />03/15/06 386 10.6 < 0.5 < 0.5 4.4 .0 0.5 < <5 < 45.45 -26.73 NA NA NA < < 0.6 <br />Olt 0.7 <1 < <I < 06/21/06 42.42 -23.70 NA NA NA 233 12.6 < 0.5 <5 < < 0.5 <br />< I < 09/20/06 42.43 -23.71 NA NA NA 269 < 0.5 < 0.5 0.9 < 0.5 1 27 < 0.5 <br />< I 12/12/06 NA NA NA 229 0.8 0.8 0.8 < 0.5 < <5 < 42.27 -23.55 < NA NA <br /><I < 03/20/07 41.10 -22.38 NA NA NA 177 < 0.5 0.6 0.5 <1 < 0.5 <5 < < 0.5 NA <br />06/11/07 40.66 NA NA 147 5.2 < 0.5 < 0.5 21.94 NA <1 < 0.5 <I 31 NA NA <br />09/25/07 NA NA 148 < 0.5 0.5 .0 0.5 <5 < 41.32 -22.60 NA < 0.5 < < I < 0.5 NA <br />12/04/07 41.50 -22.78 NA NA NA .• 128 0.5 < 0.5 .0 0.5 < < 0.5 < I < 5 I < 0.5 NA <br />< < 03/31/00 39.75 NA NA NA 106 3.8 < 0.5 < 0.5 < 0.5 -21.03 <5 < 0.5 NA <br />NA 88.6 < 06/09/00 39.72 -21.00 NA NA 3.2 < 0.5 < 0.5 I < 0.5 < I <5 < 0.5 NA <br />1 < < 09/05/08 40.58 -21.86 NA NA NA 169 < 0.5 < 0.5 < 0.5 < 0.5 <5 < I < 0.5 NA <br />NA 1.9 1 < I < < 11/2004 41.46 -22.74 NA NA 71.5 0.5 0.5 0.5 <5 < 0.5 NA <br />65.8 < 0.5 < < < I 02/24/09 41.03 22.31 NA NA NA 0.5 0.5 < 0 0.5 <5 < 0.5 NA <br />05/13/09 40.65 -21.93 NOT SAMPLED - WELL SAMPLED ANNUALLY <br />NOT SAMPLED - WELL SAMPLED ANNUALLY 10/20/09 42.35 -23.63 <br />< 0.5 < 05/14/10 40.61 -21.89 NA NA NA < 50 < 0.5 < 0.5 < 0.5 NA NA NA NA NA NA NA <br />04/29/11 < 50 0.5 < 0.5 0.5 38.45 -19.73 NA NA NA < 0.5 < NA NA NA NA NA NA NA <br /><1 06/17/11 37.89 -19.17 NA NA < 50 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA NA NA NA <br />11/03/11 NOT SAMPLED- WELL SAMPLED ANNUALLY 37.65 -18.93 NA <br />NA NA NA < 50 < 0.5 0 0.5 < 0.5 < I < 0.5 04/17/12 36.72 -18.00 NA NA NA NA NA NA NA <br />NOT SAMPLED- WELL SAMPLED ANNUALLY 09/28/12 36.88 -18.16 <br />I N.4 I NA I NA .1 < 50 I < 0.5 1 < 0.5 < 0.5 I < I 1 < 0.5 03/20/13 35.80 NA NA -17.08 NA NA NA NA NA <br />NOT SAMPLED- WELL SAMPLED ANNUALLY 12/09/13 36.99 -18.27 NA <br />1 AA .I NA I NA 1 < 50 I < 0.5 I < 0.5 loss I < 1 I < 0.5 04/04/14 36.33 -17.61 NA NA NA NA NA NA NA <br />NOT SAMPLED - WELL SAMPLED ANNUALLY 11/07/14 3811 -19.39 NA <br />05/15/15 37.68 -18.96 I ." I NA 1 NA 1 < 50 1 < 0.5 I < 0.5 1 < 0.5 1 < 1 I < 0.5 NA NA NA NA NA NA NA <br />11/16/15 40.22 -21.50 NOT SAMPLED - WELL SAMPLED ANNUALLY NA <br />05/31/16 39.23 -20.51 I \ l I NA I NA 10 50 1 < 0.5 1 < 0.5 I < 0.5 1 ' 1 I < 0.5 0) NA NA NA NA NA <1.0 <br />12 29 16 41(6 -22.34 NOT SAMPLED - WELL SAMPLED AANUALLY <br />X: \ Project \5000_pri \5960 SJC UST RFQ \ 5960C County of San Joaquin - SJC Public Works15960C6Reports \ Work Plan \App B Background \20161229_596005A Historic Data.xlsxTable B-1 0 of 8