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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 /> OW-31D 08/09/06 <0.50 <br /> OW-31D 11/02/06 <0.50 <br /> OW-31D 01/31/07 <0.50 <br /> OW-31D 05/03/07 <0.50 -- -- -- -- -- -- <br /> OW-31D 08/01/07 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-31D 10/30/07 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-31D 02/05/08 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-31D 05/06/08 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-31D 08/05/08 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-31D 09/25/08 -- -- -- -- -- -- -- Well Destroyed <br /> OW-3DR 11/04/08 <0.50 <0.50 <0.50 <0.50 29 <50 <50 <br /> OW-3DR 02/04/09 <0.50 <0.50 <0.50 <0.50 27 <80 <50 <br /> OW-3DR 05/06/09 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-3DR 08/05/09 <0.50 <0.50 <0.50 <0.50 44 -- -- <br /> OW-3DR 11/03/09 <0.50 -- -- -- 35 <br /> OW-3DR 02/03/10 <0.50 -- <5.0 -- -- -- -- <br /> OW-4A 10/29/02 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> OW-4A 02/26/03 <0.50 -- -- -- -- -- -- <br /> OW-4A 05/29/03 <0.50 <br /> OW-4A 08/07/03 <0.50 <br /> OW-4A 11/07/03 <0.50 <br /> OW-4A 03/02/04 <0.50 <br /> OW-4A 05/20/04 <0.50 <br /> OW-4A 08/19/04 <0.50 <br /> OW-4A 11/16/04 <0.50 <br /> OW-4A 02/15/05 <0.50 <br /> OW-4A 05/19/05 <0.50 <br /> OW-4A 09/02/05 <0.50 <br /> OW-4A 12/01/05 <0.50 <br /> OW-4A 02/08/06 <0.50 <br /> OW-4A 05/11/06 <0.50 <br /> OW-4A 08/09/06 <0.50 <br /> OW-4A 11/02/06 <0.50 <br /> OW-4A 01/30/07 <0.50 <br /> OW-4A 05/04/07 <0.50 -- -- -- -- -- -- <br /> OW-4A 07/31/07 <0.50 <0.50 <0.50 <0.50 200 1,800 <50 <br /> 1 Q10 STTC gwtables.xlsx Page 43 of 77 <br />