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Appendix H <br /> Historical Groundwater Analytical Data <br /> Stockton Terminals Technical Committee <br /> Port of Stockton <br /> Stockton,California <br /> Ethyl- Total MTBE MTBE TPH as TPH as <br /> Sample Sampling Benzene Toluene Benzene Xylenes 8020 8260 Gasoline Diesel Lead MBAs Comments <br /> Identification Date (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) <br /> AR/MW-21B 11/03/09 <0.50 <0.50 <0.50 <0.50 <0.50 <50 <50 <100 <br /> AR/MW-21 B 02/02/10 <0.50 <0.50 <0.50 <0.50 <0.50 <50 61 -- 480 <br /> AR/MW-21C 10/31/02 5.9 <0.50 <0.50 <2.0 <0.50 <50 100 3 -- <br /> AR/MW-21C 02/25/03 0.72 <0.50 <0.50 <2.0 <0.50 <50 61 3 <br /> AR/MW-21C 05/28/03 5.2 <0.50 <0.50 <2.0 <0.50 <50 150 <br /> AR/MW-21C 08/08/03 2.3 <0.50 <0.50 <2.0 <0.50 <50 190 <br /> AR/MW-21C 11/14/03 1.1 1.5 <0.50 <2.0 0.54 <50 620 <br /> AR/MW-21C 02/25/04 7.3 1.0 <0.50 <2.0 <0.50 <50 250 <br /> AR/MW-21C 05/19/04 <0.50 <0.50 <0.50 <2.0 <0.50 <50 250 <br /> AR/MW-21C 08/20/04 3.5 <0.50 <0.50 <2.0 <0.50 <50 71 <br /> AR/MW-21C 11/16/04 3.8 <0.50 <0.50 <2.0 0.79 <50 <50 <br /> AR/MW-21C 02/16/05 6.3 <0.50 <0.50 <2.0 <0.50 <50 75 <br /> AR/MW-21C 05/17/05 1.9 0.92 <0.50 <2.0 <0.50 <50 55 3 <br /> AR/MW-21C 08/30/05 <0.50 <0.50 <0.50 <2.0 <0.50 <50 5,200 <br /> AR/MW-21C 11/30/05 5.3 1.0 <0.50 <2.0 <0.50 <50 180 <br /> AR/MW-21C 02/07/06 1.5 1.1 <0.50 <2.0 <0.50 <50 70 3 <br /> AR/MW-21C 05/12/06 8.0 0.52 <0.50 <2.0 <0.50 <50 <50 <br /> AR/MW-21C 08/09/06 0.73 <0.50 <0.50 <2.0 <0.50 <50 88 <br /> AR/MW-21C 11/02/06 4.5 0.55 <0.50 2.1 1.0 <50 69 <br /> AR/MW-21C 01/29/07 <0.50 <0.50 <0.50 <0.50 <0.50 <50 <50 <br /> AR/MW-21C 05/01/07 1.3 <0.50 <0.50 <0.50 <0.50 <50 <50 <br /> AR/MW-21C 07/30/07 2.7 0.58 0.59 2.9 1.0 <50 270 <br /> AR/MW-21C 10/30/07 3.5 <0.50 <0.50 <0.50 1.0 <50 230 31 <br /> AR/MW-21C 02/05/08 0.67 <0.50 <0.50 <0.50 <0.50 <50 110 31 <br /> AR/MW-21C 05/06/08 0.92 <0.50 <0.50 <0.50 <0.50 <50 220 31 <br /> AR/MW-21C 08/05/08 <0.50 <0.50 <0.50 <0.50 <0.50 <50 62 <br /> AR/MW-21C 11/05/08 13 <0.50 <0.50 <0.50 <0.50 <50 <50 <br /> AR/MW-21C 02/03/09 7.0 <0.50 <0.50 <0.50 <0.50 <50 58 <br /> AR/MW-21C 05/04/09 15 <0.50 <0.50 <0.50 <0.50 66 67 <br /> AR/MW-21C 08/04/09 1.1 <0.50 <0.50 <0.50 <0.50 <50 130 <br /> AR/MW-21C 11/03/09 <0.50 <0.50 <0.50 <0.50 <0.50 <50 80 " 340 <br /> AR/MW-21C 02/02/10 <0.50 <0.50 <0.50 <0.50 <0.50 <50 120 8'" 720 <br /> AR/MW-22A 05/25/04 3,700 6,900 1,700 8,300 1,500 66,000 <6,000 a -- <br /> AR/MW-22A 08/23/04 1,800 3,400 1,100 5,000 2,900 41,000 <5,000 <br /> AR/MW-22A 11/19/04 390 140 200 420 1,600 7,500 <3,000 ° <br /> AR/MW-22A 02/14/05 -- -- -- -- -- -- -- Well flooded <br /> AR/MW-22A 05/19/05 1,700 4,400 1,800 6,900 4,300 55,000 <5,000 4 <br /> 1 Q10 STTC gwtables.xlsx Page 33 of 95 <br />