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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-6AR 10/31/06 5.0 <0.50 <0.50 <0.50 10 <100 <br /> AR/MW-6AR 01/30/07 12 <0.50 <0.50 <0.50 8.6 <50 <br /> AR/MW-6AR 2 05/02/07 38 <5.0 <5.0 <5.0 <25 <500 -- <br /> AR/MW-6AR 08/02/07 18 <2.5 <2.5 <2.5 16 <250 <50 <br /> AR/MW-6AR 10/31/07 12 <0.90 <0.90 <0.90 15 <90 <50 <br /> AR/MW-6AR 02/04/08 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-6AR 05/08/08 20 <4.0 <4.0 <4.0 <20 <400 <50 <br /> AR/MW-6AR 08/07/08 34 <4.0 <4.0 <4.0 <20 <400 <50 <br /> AR/MW-6AR 08/26/08 42 -- -- -- <400 -- -- <br /> AR/MW-6AR 11/06/08 17 <1.5 <1.5 <1.5 12 <150 <50 <br /> AR/MW-6AR 02/05/09 25 <1.5 <1.5 <1.5 15 <150 <50 <br /> AR/MW-6AR z 05/07/09 31 <2.5 <2.5 <2.5 26 <250 <50 <br /> AR/MW-6AR 08/07/09 22 <2.5 <2.5 <2.5 19 <250 <50 <br /> AR/MW-6AR 11/06/09 13 <0.50 <0.50 <0.50 7.1 <50 -- <br /> AR/MW-6AR 02/03/10 32 <4.0 <4.0 <4.0 21 <400 -- -- -- <br /> AR/MW-6B 02/14/01 <1.0 <1.0 <1.0 <1.0 <5.0 -- <br /> AR/MW-6B 05/07/01 <1.0 <1.0 <1.0 <1.0 <5.0 <br /> AR/MW-6B 08/22/01 <1.0 <1.0 <1.0 <1.0 <5.0 <br /> AR/MW-6B 10/30/01 <1.0 <1.0 <1.0 <1.0 <5.0 <br /> AR/MW-6B 02/04/02 <2.0 <5.0 <5.0 <5.0 <10 -- -- <br /> AR/MW-6B 05/02/02 0.85 <0.50 <0.50 <0.50 <5.0 <100 <50 <0.50 <0.50 <br /> AR/MW-6B 07/31/02 1.0 <0.50 <0.50 <0.50 <5.0 65 <5.0 -- -- <br /> AR/MW-6B 10/31/02 1.1 0.79 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 02/27/03 1.5 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 05/29/03 1.0 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 08/08/03 0.74 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 11/15/03 8.2 1.0 <0.50 <0.50 5.8 <50 <5.0 <br /> AR/MW-6B 02/24/04 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-6B 05/20/04 0.63 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 08/20/04 4.0 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 11/17/04 4.5 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 02/14/05 -- -- -- -- -- -- -- Well Flooded <br /> AR/MW-6B 05/18/05 0.94 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 08/30/05 2.6 <0.50 <0.50 <0.50 <5.0 <50 16 <br /> AR/MW-6B 11/29/05 2.7 0.59 <0.50 <0.50 <5.0 <50 <5.0 <br /> AR/MW-6B 02/08/06 3.0 0.62 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-6B 05/09/06 1.3 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> 1 Q10 STTC gwtables.xlsx Page 8 of 77 <br />