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TABLE 2 Historical Groundwater Monitoring & Analytical Data Former Chevron Service Station No. 94054 2103 Country Club Boulevard, Stockton, California Well No. Date Notes TOC (ft-MSL) Depth to Water 01) SPH (ft) OWE (ft-MSL) TPH- DRO TPH- GRO (pg/L) e (pgIL) T (pg/L) E (pg/L) X ( pg/L) MTBE (pg/L) TBA (pg/L) TAME (pgiL) 1,2- DCA (pg/L) , SOB (pg/L) D.O. (mg/L) Comments MW-9 09/26/16 INA 3 62 -• -- Unable to locate paved over MW-9 03/27/17 3.62 5.68 1.00 -2.06 <50 <05 <05 <55 <0.5 7 <2 <2 22 MW-9 09/25/17 3.62 10.55 0.00 -6.93 -- -- - -- 1.1 MW-9 09/26/17 3.62 -- -- <60 <0.5 <0.5 <0.5 <0.5 <2 <2 <2 -- Resampled due to broken samples MW-98 11/10/06 3.45 10.40 0.00 -6.95 - -- - - -- - Well development performed MW-9B 11/13/06 3.45 1028 0.00 -6.83 1,600 530 8 2 7 <2 - - 1.3 MW-9B 02/12/07 3.45 8.56 0.00 -5.11 2,500 1,000 12 1 10 <0.5 1.20 MW-9B 05/14/07 3.45 8.69 0.00 -5.24 6,300 3,100 29 <3 30 <3 - 1.1 MW-9B 08/13/07 3.45 11.85 0.00 -8.40 1.400 470 4 <0.54 <05 - - 1.2 MW-9B 11/12/07 3.45 11.16 0.00 -7.71 940 300 3 0.6 2 <0.5 1 MW-9B 02/11/08 3.45 7.00 0.00 -3.55 - 3,200 1,000 8 <1 7 - <2 1.5 MW-9B 05/12/08 3.45 8.53 0.00 -5.08 1,600 510 5 0.6 6 <0.5 - 1.7 MW-913 08/11/08 3.45 10.83 0.00 -7.38 1,100 320 3 0.5 4 <2 -- - 2.1 MW-9B 11/10/08 3.45 12.68 0.00 -9.23 1,100 370 <5 <5 <5 <5 <5 <5 - 1.7 MW-9B 02/09/09 3.45 9.73 0.00 -6.28 4,100 1.300 14 2 9 <1 - <1 <1 - 1.7 MW-9B 05/11/09 345 8.93 0.00 -5.48 4,200 1,700 11 <3 6 <3 <3 <3 - 1.7 MW-9B 11/23/09 3.45 11.38 0.00 -7.93 4,300 1,500 11 1 7 <1 <1 <1 - 1.0 MW-913 05/17/10 3.45 7.60 0.00 -4.15 340 7 <0.5 <0.5 1 <0.5 - <0.5 <0.5 - 1.3 MW-9B 11/03/10 3.43 10.91 0.00 -7.48 1,800 760 5 1 4 <1 - - - 1.2 MW-98 01/05/11 3.43 7.80 0.00 -4.37 350 29 <0.5 <0.5 1 <0.5 - - - 1.6 MW-9B 08/05/11 3.43 9.19 0.00 -5.76 - 1,700 560 4 0.6 4 <0.5 - - 1.2 MW-9B 02/03/12 3.43 9.33 0.00 -5.90 - 100 <0.5 <0.5 <0.5 <0.5 <0.5 - 1.2 MW-913 08/09/12 343 10.65 0.00 -7.22 3,100 680 5 <5 <5 <5 2.1 MW-9B 03/14/13 343 8.05 0.00 -4.62 3,000 960 9 <3 9 <3 - - 2.0 MW-9B 09/25/13 3.43 11.13 0.00 -7.70 5,500 1,500 15 2 14 <1 - - 1.6 MW-9B 03/18114 3.43 8.96 aoo -5.53 1,200 410 5 1 5 <0.5 - - 1.5 MW-98 09/29/14 3.43 12.43 0.00 -9.00 - 4,600 1,700 17 <3 14 <3 - -- 1.9 MW-9B 03/25/15 3.43 9.23 0.00 -5.80 <50 <0.5 <0.5 <0.5 <0.5 <0.5 -- -- - 1.4 MW-98 09/28/15 343 13.09 0.00 -9.66 110 <0.5 <0.5 <0.5 1 <2 <2 <2 1.7 MW-9B 03/28/16 3.43 8.41 0.00 -4.98 210 5 <0.5 <0.5 2 <2 <2 <2 1.4 MW-9I3 09/26/16 3.43 12.59 0.00 -9.16 520 180 2 <0.5 2 <2 - <2 <2 - 1.2 MW-9B 03/27/17 3.43 5.29 a 00 -1.86 <50 0.9 <0.5 <0.5 <0.5 <2 <2 <2 - 1.8 MW-9B 09/25/17 3.43 10.58 0.00 -7.16 410 110 1 <0.5 2 <2 - <2 <2 - 1.6 MW-9C 11/10/06 3.52 13.61 0.00 -10.09 - -- - -- - -- Well development performed MW-9C 11/13/06 3.52 12.12 0.00 -8.60 1,100 370 18 2 6 <2 - - - 1.7 MW-9C 02/12/07 3.52 10.73 0.00 -7.21 1,400 430 20 1 7 <05 -- 0.9 MW-9C 05/14/07 3.52 11.20 0 00 -7.68 790 420 19 1 7 <2 - 0.9 MW-9C 08/13/07 3.52 13.06 0.00 -9.54 250 69 3 <0.5 0.8 <0.5 1.3 MW-9C 11/12/07 3.52 12.51 0.00 -8.99 120 <0.5 <0.5 <0.5 <0.5 <0.5 2.0 MW-9C 02/11/08 3.52 10.00 0.00 -6.48 - 170 47 2 <0.5 0.5 <2 - 1.8 MW-9C 05/12/08 3.52 11.16 0.00 -7.64 - 980 310 14 0.8 4 <0.5 - -- 1.4 MW-9C 08/11/08 3.52 12.95 0.00 -9.43 - 140 45 2 <0.5 <0.5 <2 - -- -- 1.8 MW-9C 11/10/08 3.52 11.13 0.00 -7.61 140 41 1 <0.5 <0.5 <0.5 - <0.5 <0.5 2.1 MW-9C 02/09/09 3.52 11.72 0.00 -8.20 - 220 82 3 <0.5 <0.5 <0.5 - <0.5 <0.5 - 2.0 MW-9C 05/11/09 3.52 11.53 0.00 -8.01 160 45 1 <0.5 <0.5 <0.5 - <0.5 <0.5 2.2 MW-9C 11/23/09 3.52 12.75 0.00 -9.23 - 150 22 0.8 <0.5 <0.5 <0.5 - <0.5 <0.5 1.1 MW-9C 05/17/10 352 10.38 0.00 -6.86 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - <05 <0.5 1.7 MW-9C 11/03/10 3.51 12.25 0.00 -8.74 77 26 0.9 <0.5 <0.5 <0.5 -- -- - 2.1 MW-9C 01/05/11 3.51 7.68 0.00 -4.17 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - 1.3 MW-9C 08/02/11 351 11.04 0.00 -7.53 710 180 5 <0.5 1 <0.5 1.0 MW-9C 02/03/12 351 10.41 0.00 -6.90 <50 <0.5 <0.5 <0.5 <0.5 <0 5 - 1.1 _ 94054 GW Tables xis Page 20 of 29 Stan tec