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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-9A 11/18/04 620 <2.5 <2.5 5.9 82 <250 <25 <br /> AR/MW-9A 02/17/05 530 <5.0 <5.0 5.1 86 <500 <50 <br /> AR/MW-9A 05/16/05 -- -- -- -- -- -- -- SPH Sheen observed <br /> AR/MW-9A 09/02/05 230 <10 <10 <10 150 <1,000 <100 <br /> AR/MW-9A 11/30/05 400 <0.50 <0.50 4.0 87 <200 <5.0 <br /> AR/MW-9A 02/08/06 220 <9.0 <9.0 <9.0 130 <900 <90 <br /> AR/MW-9A 05/08/06 180 <9.0 <9.0 <9.0 210 <900 <90 <br /> AR/MW-9A 08/08/06 180 <8.0 <8.0 <8.0 190 <800 <80 <br /> AR/MW-9A 10/31/06 270 <9.0 <9.0 <9.0 190 <900 <90 <br /> AR/MW-9A 01/31/07 320 <9.0 <9.0 <9.0 200 <1,500 <90 <br /> AR/MW-9A 05/04/07 320 <4.0 <4.0 <4.0 200 <400 <50 <br /> AR/MW-9A 08/02/07 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> AR/MW-9A 10/29/07 -- -- -- -- -- -- -- Not sampled due to SPH <br /> AR/MW-9A 02/06/08 160 <20 <20 <20 160 <2,000 <200 <br /> AR/MW-9A 05/08/08 180 <4.0 <4.0 <4.0 200 <400 <50 <br /> AR/MW-9A 05/08/08 180 <4.0 <4.0 <4.0 200 <400 <50 <br /> AR/MW-9A 08/07/08 160 <2.5 <2.5 <2.5 130 <250 <50 <br /> AR/MW-9A 08/26/08 190 -- -- -- <500 -- -- <br /> AR/MW-9A 11/06/08 120 <2.5 <2.5 <2.5 120 <1,500 <50 <br /> AR/MW-9A 02/05/09 170 <2.5 <2.5 <2.5 120 <250 <50 <br /> AR/MW-9A 05/07/09 120 <0.50 <0.50 1.1 90 <200 <50 <br /> AR/MW-9A 08/07/09 180 <2.5 <2.5 <2.5 250 <250 <50 <br /> AR/MW-9A 11/05/09 170 <2.5 <2.5 <2.5 320 <250 -- <br /> AR/MW-9A 02/05/10 <0.50 <0.50 <0.50 <0.50 <5.0 <50 -- -- -- <br /> AR/MW-9B 02/14/01 <1.0 <1.0 <1.0 <1.0 10 -- <br /> AR/MW-9B 05/09/01 <1.0 <1.0 <1.0 <1.0 <5.0 <br /> AR/MW-9B 08/22/01 <1.0 <1.0 <1.0 <1.0 9.6 <br /> AR/MW-9B 10/31/01 <1.0 <1.0 <1.0 <1.0 <5.0 -- -- -- -- <br /> AR/MW-9B 05/03/02 <0.50 0.58 <0.50 <0.50 11 140 <50 2.4 <0.50 <br /> AR/MW-9B 08/02/02 <0.50 0.75 <0.50 <0.50 11 <50 <10 <br /> AR/MW-9B 10/31/02 <0.50 0.70 <0.50 <0.50 10 <50 <5.0 <br /> AR/MW-9B 02/26/03 <0.50 0.67 <0.50 <0.50 9.1 <50 <5.0 <br /> AR/MW-9B 05/30/03 <0.50 0.87 <0.50 <0.50 8.4 <50 <5.0 <br /> AR/MW-9B 08/08/03 <0.50 0.69 <0.50 <0.50 8.3 <50 <5.0 <br /> AR/MW-9B 11/15/03 <0.50 0.60 <0.50 <0.50 8.1 <50 <5.0 <br /> AR/MW-9B 02/25/04 <0.50 0.92 <0.50 <0.50 9.8 <50 <5.0 <br /> AR/MW-9B 05/20/04 <0.50 0.78 <0.50 <0.50 9.8 <50 <5.0 <br /> 1 Q10 STTC gwtables.xlsx Page 13 of 77 <br />