Laserfiche WebLink
California Regional Water Quality Control Board <br /> Il a <br /> Central'Va ey ion R g <br /> Robert Schudder C-ho" <br />'t' axl0tpiaemz Arnold$tbwsl7Zmener <br /> rtmy for Saeravn�mw KaLm Q�ee Governor <br /> nowntal lntmnetAddren, hair;//wwwswrcbA=Xavhwgcb5 <br /> rtecww i IoM 5mr Center Dsi�0200 t �a va,CA 95670.6114 R E C E 1 Y p <br /> 18 June 2004 JUN 21 <br />' Mr Bob Hopkins Mr Jay Allen <br /> Union Oa Company of California Stone Brothers Management Company <br /> 276 Tank Farm Road 1024 W.Robinhood Dr. <br /> P O Box 1069 Stockton, CA 95207 <br /> San Luis Obispo,CA 93406 <br />' NOTICE OF f2OL4770N, CLEANUP AND ABATEMENT ORDER(CA 0)NO, 5-00-707, FORMER <br /> UNOCAL STATION #SO99 AT 5606 PACIFIC AVENUE,AND FORMER MONTGOAIERY WARDS AUTO <br /> SERVICE AT5400PACIFICAVENUE,STOCSTON, SAN JOA 9VVV COUNTY, <br />' We reviewed the 15 June 2004 Work Plats and Schedule to Cease Plume Adovemerit and ane Plume Limits <br /> within the.B-Zone(Workplan),required by CAO No 5-00-707,subrn tted by ENSR international (ENSR)on <br /> behalf of Unocal The Workplan recommends the following actions- <br />' • Rebabilitate and restart the Soil Vapor Extraction(SVE)system by I August 2004 to " .provide "pull <br /> on groundwater and control plume spread" <br /> + Modify and restart the Air Sparging(AS) system by 1 August 2004 <br /> P • Complete an evaluation of In-Situ Chemical Oxidation CISCO)by 15 September 2004,for ozone, <br /> Fenton's reagent,hydrogen peroxide,or nutrients <br /> • If needed, install new monitoring wells MW-27, -28, -29,and-30 by 15 October 2004 <br /> The Workplan does not comply with the requiremerits of CAO No 5-00-707,Order No 15,which sinus". work <br /> to begin within 30 days of a report submittal, to define the new plume limits and cease plume movement" You <br />' are hereby directed to install the proposed inmu rnig wells by 15 July 2004 and provide a Report,which defines <br /> the extent of the new plume by I August 2004. We do not age that hydraulic control of the groundwater plume <br /> will be achieved with AS and SVE alone Therefore, the above-mentioned Report shall also include a stunmary <br /> of effwu taken to cease plume movement and the results of those efforts. <br /> Contnued failure to comply with CAO No 5-00-707 may result In Administrative Civil Laabllity(ACL) fines up <br /> to 51,000.00 per day [Water Code Section 13350 (e)(1)(B)3 retroactive to the ongmal schedule of the Order, <br /> and/or loss of Cleanup Fund eligibility. Also note that we require submittal of site-specific bench scales studies <br /> for all ISCO in}ect2aals,to provide a basis for determining what Waste Discharge Requirements may be required <br />' for that specific ISCO teebr ology. You may call me at(916)4644615 for questions or addltiarual information <br /> ;A;N:ffi!SL.BARTON,R.G <br /> Engineering Geologist <br /> cc: Mr Mark Owens,UST Cleanup Fund, SWRCB, Sacramento <br /> Mr. Mike Infurna, San Joaquin County Environmental Health Division, Stockton <br /> Ms. Jill Tracy,Esq.,UNOCAL,Brea <br /> Mr.Ben Herniingburg, ENSR International, Sacramento <br /> 250 ' sS? 9L6 California Enviroamental Protections Agency <br /> z0i�0 d <br /> n�ti- J:I^1u 5? 1�L <br /> POO?-TE-Nn_ <br />