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Table B-I: Historical Groundwater Measurements and Ana vtical Results SAMPLE LOCATION top of casing elevation DATE SAMPLED DEPTH TO GROUNDWATER (Feet bgs) GROUNDWATER ELEVATION (Feet msI) 1 PH-K TPH-MO TP11-13 TP1I-G BENZENE TOLUENE ETIIVL- BENZENE XYL ENES MTBE DIPE ETRE TAME TBA 1,2-DCA EBB Naphthalene Method 8015M 8015M 80 I 5M 30I5M 802113 1102113 0021B 802 I B 8260B 8260B 0260B 8260B 82608 82608 8260/3 ,,o0li N1CL None None 56 pg/L 2 5 pg/1...' I.)) I! L 150 , L 300 1L 1,750 5/L 13 pg,t. None None None 12 pg/L 0.5 pg/L 0.05 pg L MW-4 10.02 aii Ire 8260B 12/19/03 48.38 -30.06 NA NA NA < 50 < 0.5 < 0.5 < 0.5 < 1 0.5 < 0.5 < 0.5 < 0.5 24 < 0.5 NA NA 03/24/04 47.42 -20.60 NA NA NA < SO 1.1 0 0.5 < 0.5 06/09/04 47.62 -28.00 NA NA NA < 50 1.1 < 0.5 < 0.5 08/23/04 411.90 -30.08 NA NA NA < 50 < 0.5 < 0.5 .< 0.5 12/29/04 49.26 -30.44 NA NA NA < 50 < 0.5 .0 0.5 < 0.5 03/23/05 48.15 -29.33 NA NA NA < 50 < 0.5 < 0.5 < 0.5 06/29/05 46.72 -27.90 NA NA NA < 50 < 0.5 < 0.5 0 0.5 < 1 1.3 09/21/05 47.80 -28.98 NA NA NA 0 50 < 0.5 < 0.5 < 0.5 12/20/05 48.33 -29.51 NA NA NA < 50 < 0.5 0 0.5 < 0.5 1.0 15.0 0 I 03/15/06 46.11 -27.29 NA NA NA < 50 < 0.5 .< 0.5 < 0.5 06/21/06 43.07 -24.25 NA NA NA < 50 < 0.5 < 0.5 < 0.5 < 1 15.3 0 I 0 I < 1 < 5 0 1 0 0.5 NA 09/20/06 43.10 -24.28 NA NA NA .. 56 < 0.5 0 0.5 0 0.5 12/12/06 42.87 -24.05 NA NA NA a. 78.4 < 0.5 < 0.5 < 0.5 0 I 105 < 0.5 < 0.5 < 0.5 0 5.0 0.5 NA NA 03/20/07 41.58 -22.76 NA NA NA 0 50 0 0.5 0 0.5 < 0.5 06/11/07 41.10 -22.36 NA NA NA < 50 < 0.5 0 0.5 < 05 0 I 168 < 1.0 0 1.0 < 1.0 < 10.0 0 1.0 NA NA 09/25/07 41.94 -23.12 NA NA NA .. 52.5 < 0.5 < 0.5 0 0.5 12/04/07 42.08 -23.26 NA NA NA < 50 < 0.5 < 0.5 < 0.5 03/31/08 40.27 -21.45 NA NA NA < 50 < 0.5 < 0.5 < 0.5 06/09/08 40.30 -21.48 NA NA NA 0 50 < 0.5 < 0.5 < 0.5 09/05/08 41.28 -22.46 NA NA NA < 500 < 5 < 5 < 5 < 10 151 < 5.0 < 5.0 0 5.0 < 50.0 < 5.0 0 5 NA 11/20/08 42.12 -23.30 NA NA NA < 50 0 0.5 < 0.5 < 0.5 0 I 147 0 5.0 0 5.0 < 5.0 0 50.0 < 5.0 0 5 NA 02/24/09 41.66 -22.86 NA NA NA < 50 < 0.5 < 0.5 < 0.5 05/13/09 41.22 -22.40 NA NA NA < 50 < 0.5 < 0.5 < 0.5 10/20/09 43.10 -24.28 NA NA NA < 50 < 0.5 < 0.5 0 0.5 05/14/10 41.20 -22.38 NA NA NA < 50 0 0.5 0 0.5 < 0.5 04/29/11 39.01 -20.19 NA NA NA 0 50 00.5 < 0.5 0 0.5 11/03/11 38.21 -19.39 NA NA NA < 50 <0.5 < 0.5 < 0.5 c I 48 NA NA NA NA NA NA NA 04/17/12 37.20 -18.30 NA NA NA 0 50 0 0.5 < 0.5 < 0.5 09/28/12 37.40 -18.58 NA NA NA .0 50 0 0.5 < 0.5 < 0.5 03/20/13 36.23 -17.41 NA NA NA < 50 < 0.5 0 0.5 0 0.5 12/09/13 37.48 -18.66 NA NA NA <50 < 0.5 .< 0.5 < 0.5 04/04/14 36.81 -17.99 NA NA NA 0 50 < 0.5 < 0.5 0 0.5 11/07/14 36.65 -19.03 NA NA NA < 50 < 0.5 < 0.5 < 0.5 < 1 35 NA NA NA NA NA NA NA 05/15/15 38.32 -19.50 NA NA NA < 50 0 0.5 < 0.5 < 0.5 0 I 12 NA NA NA NA NA NA NA 11/16/15 40.84 -22.02 NA NA NA < 50 < 0.5 < 0.5 < 0.5 < 1 11 NA NA NA NA 0 0.5 NA <1.0 05/31/16 39.85 -21.03 NA NA NA < 50 < 0.5 < 0.5 0 0.5 12/29/16 41.71 -22.89 <57 NA <34 29 0.10 < 0.50 < 0.50 < 1.0 3.0 NA NA NA NA < 0.17 NA <0.50 X:\Project\5000_pri\5960 SJC UST RFQ\ 5960C County of San Joaquin -SJC Public Works \596006 \Reports Mork Plan \App B Background \20161229_596005A Historic Data.xlsxTable B-1 4 of 8