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A CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION CLEANUP AND ABATEMENT ORDER NO. FOR UNIVERSITY OF CALIFORNIA LAWRENCE LIVEP,MORE NATIONAL LABORATORY I E 300 AND THE UNITED STATES DEPARTMENT OF P RGY SAN JOAQUIN COUNTY The California Regional Water Quality Control Board, ntral Valley e on (hereafter Board) finds that: 1. The University of California prepares and t s high explosives (HE) at _ United States Department of Energy' s Lawrence Li- e more National Laboratory (LLNL) Site 300 which comprises approximately 300 r s in T?S, R4E, MDB& I. 2. University of California, LLNL, and U S. DcNar L -rt of Energy are hereaft[`r jointly referred to as Discharger. 3. Site 300 surface waters are ephemeral ibutary to Corral Hallow Creek, whose beneficial uses include agricul a supply; recreation; aesthetic enjoyment; and preservation and enhancement o h, wildlife, and other aquatic resources. The beneficial uses of Site 300 d water include domestic, industrial , and agricultural supply. 4. Past activities at Siteve uted the ground water beneath major areas of the site with numerc; onsti s, lading volatile organic compounds (VOCs) , HE compounds, and i ium. 5. Since at least 1982, the Dis . 3 ger h, 'ntensively investigated polluted Site 3O0 areas including the Environr� A�l e area; the General Services Area (GSA); the HE Process Area; the Ian dfii3,s i 61 Pit 8, and Pit 9; the Pit ; Complex; and others. Aoug he Discharge h s thoroughly investigated several polluted areas, they a in ' i Nted no reme i 1 actions to clean up Site 300 polluted ground wat 6. The D i sc' a ger repor s ss to the Board toward site cleanup in quarterly reports ;additionr, n specifies remedial investigations (RI ) , tea3i i +: ttady (f ; , ani re^,gid action ..RA) i asks. A time schedule included with the w. �l et:s ,.ask completion deadlines. 7. In D 0 iber 198 ust 1988, and January 1989, the Discharger provided work ns an time sch ups to the Board. For various reasons, including the d covert' "C-' escaNn -rof f-sl te, the D scharger did not comply with the +irst wo time scn The Discharger s:. t,:i ttcd a revised work Plan and t i me schedule in january 1989 'hich substantial y inicre;a,sed the time intervals alloteJ to almost all RI , FS, RA tasks � 3 9. This �r r ineo't-,�.g/ate3 most of the deadlines !fisted In he Discharger'-, January 1989 wok -k j'Jan/bi t acc--rates tr e dat-- for the initia.' 1cr, of tine refiled lal act loi'1 of the or �s 1 /trick i-or; t'ns;cne in the GSA.