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Community Member <br />December 16, 1991 <br />Page 2 <br />month. The discharge water is tested regularly to determine that it has been <br />properly treated. <br />The treated water from the system is presently being discharged into Corral <br />Hollow Creek bed at a rate of about 30 gallons per minute. The creek bed is <br />usually dry, so the treated water soaks into the ground about 150 feet downstream <br />from the point of discharge. No significant surface water flow in the area has <br />occurred as a result of the treatment discharge. <br />In response to the ongoing drought, Site 300 will provide some of the treated <br />water from the eastern GSA system to the nearby California Department of <br />Forestry Station. The station will use a drip irrigation system to water its <br />landscaping. <br />Cleanup Ovmrsightt <br />All cleanup activities at Site 300 are overseen by the U.S. Environmental <br />Protection Agency and State agencies. The operation of the ground water <br />treatment system in the eastern GSA is conducted under two permits: one issued <br />by the San Joaquin County Air Pollution Control District (for the air released from <br />the treatment unit) and another issued by the U.S. Environmental Protection <br />Agency (a National Pollution Discharge Elimination System permit for the <br />discharge of treated water). <br />For More ation <br />If you have any questions about the technical aspects of the eastern GSA <br />cleanup or other cleanup activities at Site 300, please call Albert Lamarre, the <br />Site 300 Environmental Restoration Project Leader, at (510) 422-0757. For general <br />information about Site 300, or about LLNL community relations activities, please <br />call Bert Heffner, Manager of Area Relations, at (510) 294-5806. <br />Sincerely, <br />i <br />A loo, <br />Milt Grissom <br />Site 300 Resident Manager <br />Lawrence Livermore National Laboratory <br />MG.DR:jz <br />cc: <br />M. Brown, DOE <br />J. Tulk <br />