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Public Notification—Generaader No. R5-2003-0044 <br /> Mountain House Creek Restoration Project, Mountain House,California July 6,2004 <br /> Constituent Daily Unit 30 Day Median Daily Maximum <br /> TPHd gg/L <50 100 <br /> TPH motor oil µg/L <50 50 <br /> TPH gasoline gg/L <50 50 <br /> Benzene gg/L <0.5 0.5 <br /> Toluene gg/L <0.5 5.0 <br /> Ethylbenzene gg/L <0.5 5.0 <br /> Total xylenes gg/L <0.5 5.0 <br /> Naphthalene gg/L <5.0 21 <br /> Carcinogenic PAHs gg/L <0.5 <0.5 <br /> MTBE& other ether gg/L <0.5 5 <br /> oxygenates <br /> Tertiary butyl alcohol gg/L <5,0 12 <br /> Methanol 1.1g/L <50 ** <br /> Ethanol gg/L <5.0 <br /> 1,2-dichloroethane gg/L <0.5 <0.5 <br /> 1,2-dibromoethane gg/L <0.5 <0.5 <br /> Lead gg/L 2 2 <br /> *** Due to current technological and economic dynamics for these constituents, site-specific approval <br /> will be issued for these constituents. Limitations to be determined by Regional Board staff upon <br /> review of each submitted Report of Waste Discharge. Appropriate limitations will be set in the <br /> Executive Officer's"Notice of Applicability" letter. <br /> Other limitations required by the Order include: <br /> • The discharge shal I not have a pH of less than 6.5 nor greater than 8.5. <br /> • The discharge shall remain within the designated disposal area at all times. <br /> During dewatering activities, groundwater extracted will be piped to the treatment system <br /> described above. The Order requires the influent and effluent treated water be sampled as part of <br /> the compliance requirement set forth in the Order. Prior to discharging treated groundwater to <br /> Field G, SAIC will circulate extracted groundwater through the treatment system and back to the <br /> holding tanks. SAIC will sample the influent and effluent groundwater and submit for analyses <br />