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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-8C 11/17/04 <1.5 <1.5 <1.5 <1.5 11 <150 <15 <br /> AR/MW-8C 02/14/05 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-8C 05/19/05 <2.5 <2.5 <2.5 <2.5 <15 <250 <25 <br /> AR/MW-8C 08/31/05 <2.5 <2.5 <2.5 <2.5 <15 <250 <25 <br /> AR/MW-8C 11/29/05 <7.0 <2.5 <2.5 <2.5 <40 <250 <25 <br /> AR/MW-8C 02/09/06 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-8C 05/09/06 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-8C 08/08/06 <0.50 <0.50 <0.50 <0.50 <5.0 <50 -- <br /> AR/MW-8C 10/31/06 0.66 <0.50 <0.50 <0.50 <5.0 <100 <br /> AR/MW-8C 01/29/07 5.2 -- -- -- -- -- <br /> AR/MW-8C 05/03/07 4.6 -- -- -- -- -- -- <br /> AR/MW-8C 07/31/07 7.5 <0.50 <0.50 <0.50 13 <50 <50 <br /> AR/MW-8C 10/31/07 3.7 <0.50 <0.50 <0.50 10 <50 <50 <br /> AR/MW-8C 02/04/08 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-8C 05/07/08 1.9 <0.50 <0.50 <0.50 7.1 <50 <50 <br /> AR/MW-8C 08/06/08 <2.5 <0.50 <0.50 <0.50 11 -- -- <br /> AR/MW-8C 11/07/08 <2.5 <2.5 <2.5 <2.5 30 -- -- <br /> AR/MW-8C 02/05/09 <4.0 <4.0 <4.0 <4.0 <20 <400 <50 <br /> AR/MW-8C z 05/07/09 <4.0 <4.0 <4.0 <4.0 <20 <400 <50 <br /> AR/MW-8C 08/06/09 <2.5 <2.5 <2.5 <2.5 <15 <250 <50 <br /> AR/MW-8C 11/06/09 <2.5 <2.5 <2.5 <2.5 <15 <250 -- <br /> AR/MW-8C 02/03/10 <0.50 <0.50 <0.50 <0.50 14 <200 -- <br /> AR/MW-9A 02/14/01 62 <10 <10 <10 <50 -- <br /> AR/MW-9A 05/09/01 63 <5.0 <5.0 <5.0 <25 <br /> AR/MW-9A 08/22/01 61 <20 <20 <20 <100 <br /> AR/MW-9A 10/30/01 61 <10 <10 <10 <50 <br /> AR/MW-9A 02/05/02 440 <500 <500 <500 <1,000 <br /> AR/MW-9A 05/01/02 -- -- -- -- -- SPH Sheen observed <br /> AR/MW-9A 07/29/02 -- -- -- -- -- -- -- SPH Sheen observed <br /> AR/MW-9A 10/31/02 330 <20 <20 <20 <200 <2,000 <200 <br /> AR/MW-9A 02/27/03 680 <10 <10 <10 <100 <1,000 <100 <br /> AR/MW-9A 05/30/03 1,100 <10 <10 <10 <100 <1,000 <200 <br /> AR/MW-9A 08/13/03 930 <10 <10 <10 <100 <1,000 <100 <br /> AR/MW-9A 12/01/03 1,200 <0.50 <0.50 <10 64 <50 <10 <br /> AR/MW-9A 02/24/04 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-9A 05/25/04 540 <10 <10 <10 100 <1,000 <100 <br /> AR/MW-9A 08/23/04 700 <5.0 <5.0 5.5 90 <500 <50 <br /> 1 Q10 STTC gwtables.xlsx Page 12 of 77 <br />