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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 /> ARCO
<br /> AR/MW-1A 02/14/01 37,000 <500 <500 <500 <2,500
<br /> AR/MW-1A 05/09/01 13,000 <170 <170 <170 <850
<br /> AR/MW-1A 08/22/01 40,000 <1,000 <1,000 <1,000 <5,000
<br /> AR/MW-1A 10/31/01 35,000 <500 <500 <500 <2,500
<br /> AR/MW-1A 02/05/02 29,000 <5,000 <5,000 <5,000 <10,000 -- -- -- --
<br /> AR/MW-1A 05/03/02 14,000 <50 <50 110 1,900 <500 <5,000 190 <50
<br /> AR/MW-1A 08/02/02 39,000 <100 <100 280 2,800 <16,000 <1,000
<br /> AR/MW-1A 10/31/02 33,000 <100 <100 220 1,800 <10,000 <1,000
<br /> AR/MW-1A 02/27/03 3,100 <25 <25 <25 330 <2,500 <250
<br /> AR/MW-1A 06/11/03 3,500 <5.0 <5.0 34 280 <500 <50
<br /> AR/MW-1A 08/14/03 11,000 <25 <25 110 460 J <2,500 <250
<br /> AR/MW-1A 11/13/03 18,000 <50 <50 160 580 J <5,000 <500
<br /> AR/MW-1A 03/01/04 3,800 <10 <10 31 220 <1,000 <100
<br /> AR/MW-1A 05/19/04 3,000 <10 <10 20 240 <1,000 <100
<br /> AR/MW-1A 08/18/04 26,000 <40 <40 280 1,200 J <4,000 <400
<br /> AR/MW-1A 11/18/04 16,000 <25 <25 210 4,300 <4,000 <400
<br /> AR/MW-1A 02/17/05 6,600 <20 <20 59 900 <2,000 <200
<br /> AR/MW-1A 05/19/05 3,500 <9.0 <9.0 44 550 <900 <90
<br /> AR/MW-1A z 09/01/05 10,000 <9.0 <9.0 130 7,500 <2,000 <90
<br /> AR/MW-1A 12/22/05 4,600 <9.0 <9.0 64 9,800 <2,000 <90
<br /> AR/MW-1A 02/09/06 2,000 <5.0 <5.0 27 4,400 <500 <50
<br /> AR/MW-1A 05/09/06 910 <4.0 <4.0 12 2,200 <400 <50
<br /> AR/MW-1A 08/08/06 740 <5.0 <5.0 10 6,100 <500 <50
<br /> AR/MW-1A 11/01/06 540 <5.0 <5.0 8.1 4,100 <3,000 --
<br /> AR/MW-1A 01/31/07 950 <4.0 <4.0 15 2,700 <3,000
<br /> AR/MW-1A 05/03/07 1,700 <5.0 <5.0 34 2,400 <500 --
<br /> AR/MW-1A 07/31/07 520 <2.5 <2.5 10 1,400 <400 <50
<br /> AR/MW-1A 10/31/07 160 <0.50 <0.50 2 240 <200 <50
<br /> AR/MW-1A 02/05/08 890 <2.5 <2.5 20 1,000 <1,500 <50
<br /> AR/MW-1A 05/08/08 1,200 <5.0 <5.0 26 2,300 <600 <50
<br /> AR/MW-1A 06/25/08 1,100 -- -- -- 2,200 -- --
<br /> AR/MW-1A 07/28/08 940 -- -- -- 2,000 -- --
<br /> AR/MW-1A 08/07/08 530 <2.5 <2.5 11 1,500 <250 <50
<br /> AR/MW-1A 08/26/08 360 -- -- -- <1,000 -- --
<br /> AR/MW-1A 11/06/08 72 <0.50 <0.50 1.3 1,800 <50 2,300
<br /> AR/MW-1A 02/04/09 180 <0.90 <0.90 3.6 540 <90 <50
<br /> AR/MW-1A 05/07/09 570 <0.90 <0.90 16 1,100 <500 <50
<br /> 1Q10 STTC gwtables.xlsx Page 1 of 77
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