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Appendix I <br /> Historical Groundwater Oxygenate and Fuel Additive Analytical Data <br /> Stockton Terminals Technical Committee <br /> Port of Stockton <br /> Stockton, California <br /> Sample Sample MTBE DIPE ETBE TAME TBA Methanol Ethanol 1,2-DCA EDB <br /> Identification Date (pg/L) (pg/L) (Ng/L) (pg/L) (Ng/L) (Ng/L) (Ng/L) (pg/L) (pg/L) Comments <br /> AR/MW-11C 02/16/05 4.4 <1.0 <1.0 <1.0 28 <100 <10 <br /> AR/MW-11C 05/18/05 <0.50 <0.50 <0.50 <0.50 <5.0 <50 5.0 <br /> AR/MW-11C 09/01/05 3.9 <0.50 <0.50 <0.50 45 <50 <5.0 <br /> AR/MW-11 C 12/22/05 -- -- -- -- -- -- -- Unable to access <br /> AR/MW-11C 02/07/06 21 <4.0 <4.0 <4.0 1,200 <400 <100 <br /> AR/MW-11C 05/12/06 1.5 <0.50 <0.50 <0.50 350 <50 <50 <br /> AR/MW-11C 08/08/06 2.9 <0.50 <0.50 <0.50 200 <50 <50 <br /> AR/MW-11C 11/01/06 10 <0.50 <0.50 <0.50 30 <100 <50 <br /> AR/MW-11C 01/31/07 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-11C 05/02/07 0.69 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-11C 07/31/07 0.77 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-11C 10/31/07 3.9 <0.50 <0.50 <0.50 7.9 <50 <50 <br /> AR/MW-11C 02/06/08 81 <0.50 <0.50 <0.50 310 <50 <50 <br /> AR/MW-11C 05/08/08 81 <0.50 <0.50 <0.50 280 <900 <50 <br /> AR/MW-11C 08/07/08 100 <9.0 <9.0 <9.0 250 <900 <90 <br /> AR/MW-11C 11/07/08 58 <1.5 <1.5 <1.5 120 <150 <50 <br /> AR/MW-11C 02/04/09 36 <1.5 <1.5 <1.5 84 <150 <50 <br /> AR/MW-11C 05/07/09 2.2 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-11C 08/05/09 2.8 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-11C 11/04/09 2.5 <0.50 <0.50 <0.50 <5.0 <50 -- <br /> AR/MW-11C 02/05/10 25 <0.50 <0.50 <0.50 48 <50 -- -- -- <br /> AR/MW-12A 02/14/01 <25 <25 <25 <25 <125 -- <br /> AR/MW-12A 08/22/01 20 <10 <10 <10 <50 <br /> AR/MW-12A 02/06/02 27 <5.0 <5.0 <5.0 <10 <br /> AR/MW-12A 05/01/02 -- -- -- -- -- SA(1,3) <br /> AR/MW-12A 07/29/02 Not sampled due to SPH <br /> AR/MW-12A 10/28/02 SA(1,3) <br /> AR/MW-12A 02/24/03 SPH Sheen observed <br /> AR/MW-12A 05/27/03 SPH Sheen observed <br /> AR/MW-12A 08/04/03 Not sampled due to SPH <br /> AR/MW-12A 11/18/03 38 <2.0 <2.0 <2.0 33 <200 <50 <br /> AR/MW-12A 03/01/04 49 <3.0 <3.0 <3.0 60 <500 <50 <br /> AR/MW-12A 05/25/04 180 <2.5 <2.5 3.1 68 <250 <25 <br /> AR/MW-12A 08/18/04 320 <1.5 <1.5 5.9 65 <200 <20 <br /> AR/MW-12A 11/19/04 92 <1.5 <1.5 1.8 62 <150 23 <br /> AR/MW-12A 02/17/05 96 <2.5 <2.5 <2.5 82 <250 <25 <br /> AR/MW-12A 05/20/05 52 <4.0 <4.0 <4.0 71 <400 <40 <br /> 1 Q10 STTC gwtables.xlsx Page 18 of 77 <br />