Laserfiche WebLink
„TATE OF CALIFORNIA—HEALTH ANJ WFIFARF AGENCY <br />GEORGE OEOKMFAAN. Governor <br />DEPARTMENT OF HEALTH SERVICES <br />TOXIC SUBSTANCES CONTROL PROGRAM <br />700 HEINZ AVE., BLDG. F STE. 200 is> <br />BERKELEY, CA 94710 <br />FACT SHEET <br />Lawrence Livermore National Laboratory <br />(LLNL), Site 300 <br />EPA ID No. CA2890090002 <br />The Environmental Protection Agency (EPA) and the Department of Health Services <br />(DHS) propose for approval the closure of two landfills (Pits 1 and 7) located at Lawrence <br />Livermore National Laboratory, Site 300, near Tracy, California. In addition, DHS <br />proposes to issue a Negative Declaration on the closure project. This means that, after <br />conducting an initial study in accordance with the California Environmental Quality Act <br />(CEQA), DHS finds that the proposed project will not have any significant effect on the <br />environment. <br />The EPA and DHS are seeking comments on the proposed approval of the closure plan and <br />issuance of Negative Declaration. Comments should be focused on the closure plan and <br />CEQA decision. The plan consists of construction of earthen covers, and of water diversion <br />and drainage systems for the permanent closure of Pits 1 and 7. Other issues concerning <br />LLNL-Site 300 operations, such as the EIR/EIS that is currently under review, their <br />research program, storage activities or groundwater monitoring being conducted under the <br />oversight of the Regional Water Quality Control Board (RWQCB), are not under <br />consideration for the purpose of this comment period and public hearing. <br />The wastes contained in the pits are a mixture of hazardous and low-level radioactive waste <br />(as differentiated from high-level radioactive waste). These wastes are called "mixed <br />wastes” under the state and federal regulations. EPA and DHS Toxic Substances Control <br />Program (TSCP) authority apply only to the hazardous waste portion of the mixed wastes. <br />The U.S. Department of Energy (DOE) has authority over the radioactive waste portion. <br />This closure plan allows the hazardous wastes to be left on site and covered in such a way <br />as to prevent any of the waste from moving. <br />Part of this closure plan includes the installation of an interceptor drain. This drain would <br />eliminate the potential for flow of ground water from beside into the Pit 7 complex <br />preventing contact of groundwater with the wastes during winter, thus, minimizing or <br />eliminating potential release of hazardous constituents to the environment. <br />December 1990 <br />