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Table A-Historical Laboratory Analytical Data (continued) <br /> • <br /> GASOLINE OXYGENATES/ADDITIVES <br /> B T E X TPI/-G TPH-D MTBE Other Gasoline Oxygenates/Additives <br /> Detection Limits: 0.3 0.3 0.3 0.6 0.05 0.05 1.0 0.5-40 <br /> µg/l µg/l µg/l µg/1 mg/l mg/l µg/1 n/l <br /> Analytical Method: 8260B 826013 8260B 8260B 5030/ 3510/ 826013 8260B <br /> 8015M 8015M <br /> Sample I.D./Date <br /> MW4-4/20/95 0.41 ND ND ND ND ND NA NA <br /> MW4-7/24/95 ND ND ND ND ND ND NA NA <br /> MW4-12/8/95 0.49 ND ND ND ND ND NA NA <br /> MW4-3/13/96 26 1.2 1.6 ND 0.091 ND NA NA <br /> MW4-6/28/96 ND ND ND ND ND ND ND NA <br /> MW4-4/5/97 ND ND ND ND ND ND ND NA <br /> MW4-6111/97 ND ND ND ND ND ND ND NA <br /> MW4-11/5/97 ND ND ND ND ND ND ND NA <br /> MW44/7/98 ND ND ND ND ND ND ND NA <br /> MW4-9/30/98 ND ND ND ND ND ND ND NA <br /> MW4-6/30/99 ND ND ND ND ND ND 3.7 NA <br /> MW4-9/10199 8.1 30 4.0 31 0.1 ND 4.7 NA <br /> MW4-12/10/99 8.6 20 8.5 37 0.2 ND 6.6 NA <br /> MW4-3/27/00 1.0 6.3 1.6 13 0.15 ND 3.7 NA <br /> MW4-6/23/00 ND ND ND ND ND ND ND NA <br /> MW4-9/8/00 120 10 76 180 1.3 ND 3.2 NA <br /> MW4-12/29/00 2.4 ND 5.8 2.8 0.15 ND 9.8 1,2-DCA 14 <br /> MW4-3/5/01 5.6 ND 43 5.0 0.11 ND 9.2 1,2-DCA 12 <br /> MW4-6/4/01 240 8.6 120 150 1.2 ND 5.0 ND <br /> MW4-9/10101 84 9.4 110 130 0.91 ND 2.4 ND <br /> MW4-12/17/01 270 ND 115 42 5.5 ND ND 1,2-DCA 12 <br /> MW4-2127102 <0.5 <0.5 <0.5 <1.0 0.67 ND 15 1,2-DCA 15♦ <br /> Page 3 of 7 <br />