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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-6B 08/08/06 2.4 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 10/30/06 2.6 <0.50 <0.50 <0.50 <5.0 <100 <50 <br /> AR/MW-6B 01/30/07 4.4 0.65 -- -- -- -- -- <br /> AR/MW-6B 05/02/07 3.7 0.54 -- -- -- -- -- <br /> AR/MW-6B 08/01/07 4.3 0.61 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 10/30/07 3.5 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 02/04/08 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-6B 05/06/08 0.64 <0.50 <0.50 <0.50 <5.0 56 <50 <br /> AR/MW-6B 08/05/08 2.3 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 11/05/08 <0.50 <0.50 <0.50 <0.50 4,200 <250 3,000 <br /> AR/MW-6B 02/05/09 0.64 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 05/06/09 0.67 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 08/05/09 0.96 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 11/06/09 <0.50 -- -- -- <5.0 <50 <50 <br /> AR/MW-6B 02/04/10 1.1 -- -- -- <5.0 <50 <50 -- -- <br /> AR/MW-8A 02/14/01 <85 <85 <85 <85 <430 -- -- <br /> AR/MW-8A 05/07/01 <50 <50 <50 <50 <250 <br /> AR/MW-8A 08/22/01 <30 <30 <30 <30 <150 <br /> AR/MW-8A 10/30/01 <20 <20 <20 <20 <100 <br /> AR/MW-8A 02/04/02 54 <50 <50 <50 <100 -- -- <br /> AR/MW-8A 05/03/02 94 <50 <50 <50 <500 <2,000 <5,000 560 <50 <br /> AR/MW-8A 08/02/02 150 <100 <100 <100 <1,000 <10,000 <1,000 -- -- <br /> AR/MW-8A 10/31/02 860 <50 <50 <50 <500 <5,000 <500 <br /> AR/MW-8A 02/27/03 180 <100 <100 <100 <1,000 <10,000 <1,000 <br /> AR/MW-8A 05/30/03 510 <100 <100 <100 <1,000 <10,000 <1,500 <br /> AR/MW-8A 08/13/03 620 <100 <100 <100 <1,000 <10,000 <1,000 <br /> AR/MW-8A 12/01/03 1,600 <25 <25 <25 <250 <2,500 <250 <br /> AR/MW-8A 03/03/04 460 <50 <50 <50 <250 <5,000 <500 <br /> AR/MW-8A 05/17/04 -- -- -- -- -- -- -- SPH Sheen observed <br /> AR/MW-8A 08/18/04 1,200 <20 <20 <20 <200 <2,000 <200 <br /> AR/MW-8A 11/18/04 1,600 <25 <25 <25 180 <2,500 <250 <br /> AR/MW-8A 02/14/05 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-8A 05/20/05 860 <40 <40 <40 <200 <4,000 <400 <br /> AR/MW-8A 09/02/05 1,200 <25 <25 <25 190 <2,500 <250 <br /> AR/MW-8A 11/29/05 5,900 <20 <20 <20 300 <2,000 <200 <br /> AR/MW-8A 02/06/06 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-8A 05/09/06 1,900 <40 <40 <40 210 <4,000 <400 <br /> 1 Q10 STTC gwtables.xlsx Page 9 of 77 <br />