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TABLE 1 Page 2 of 2 <br /> GROUNDWATER MONITORING SCHEDULE <br /> SHELL STOCKTON TERMINAL <br /> 3515 NAVY DRIVE,STOCKTON,CALIFORNIA <br /> Monitoring Depth to TPHd TPHg BTEX Fuel Oxygenates(EPA 8260B) Lead <br /> Well Groundwater (EPA 8015M) (EPA 8015M) (EPA 8260B) Methanol Ethanol TBA MTBE DLPE ETBE TAME (EPA 7421) <br /> MW-19 Quarterly Required Required Required <br /> MW-30 Quarterly Required Required Required <br /> MW-31 Quarterly Required Required Required <br /> MW-32 Quarterly Required Required Required Y <br /> MDLs 50µg/l 50µg/l 0.5µg/l 100µg/l 50µg/l 5µg/I 0.5µg/l 0.5µg/l 0.5µg/l 0.5µg/l 10µg/I <br /> NOTES: <br /> MDLs=Maximum detection limits for each compound,reported in micrograms per liter(µg/1) <br /> TPHd=Total petroleum hydrocarbons as diesel <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> MTBE=Methyl tertiary-butyl ether <br /> TBA=Tertiary-butyl alcohol <br /> DIPE=Di-isopropyl ether <br /> ETBE=Ethyl tertiary-butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> Sampling discontinued at selected wells based on the criteria outlined in the Monitoring and Reporting Program and corresponding groundwater monitoring data <br /> Table template from RETECH 2/14/2006 <br /> Fuel oxygenates including MTBE,methanol,ethanol,TBA,TAME,DIPE,ETRE shall be analyzed in all monitoring wells during two monitoring events in the first and third quarters.If results <br /> are nondetectable for fuel oxygenates during both sampling events,no further monitoring for the corresponding oxygenates is required for that well.If a fuel oxygenate is detected,sampling <br /> shall continue for that well under its existing monitoring frequency. <br /> Lead was required in first quarter 2009 but not required in subsequent quarters per Regional Water Quality Control Board March 27,2009 approval letter. <br /> can <br /> 241m osi <br />