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California Regiotal Water Quality Coirol Board <br /> Central Valley Region <br /> Steven T.Butler,Chair <br /> '� <br /> Winston H.Hickox Gray Davis <br /> Secretaryfor Sacramento Main Office Governor <br /> Environmental Internet Address: http://w .sw eb.ca.gov/—mgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 15 August 2000 C? .0/ <br /> d < < say 00 <br /> Mr. Jeff Goold <br /> Equiva Services LLC <br /> 10602 NE 38"i Place <br /> Kirkland, WA 98083 <br /> WORK PLAN APPROVAL, EQUILON BULK FUEL FACILITY, STOCKTON, SAN JOAQUIN <br /> COUNTY <br /> I have reviewed Toxichem Management Systems, hic.'s 14 July 2000 Site Investigation Work Plan for <br /> the Equilon Bulk Fuel Facility at 3515 Navy Drive in Stockton. The work plan proposes to drill two <br /> borings east of monitoring wells (MWs) 11 and 17 next to the eastern perimeter fence of the facility. <br /> Specifically, the work plan recommends to do the following: (1) Install the two borings described above, <br /> (2) Collect soil samples for logging and possible chemical analysis every five feet or less, (3) Submit <br /> two soil samples per boring for laboratory analysis, (4) Install a 4-inch groundwater MW in each boring, <br /> and(5) Develop and survey the MWs and incorporate them into the monitoring program. <br /> My comments on the work plan are presented below. <br /> 1. The work plan should specify that the soil samples are going to be analyzed for total petroleum <br /> hydrocarbons as diesel and gasoline; benzene, toluene, ethylbenzene and xylenes; and oxygenates <br /> including methyl tertiary butyl ether. <br /> 2. If the MWs are completed within a month of the regular quarterly sampling event,then Equilon may <br /> sample the newly-installed MWs during the quarterly sampling event. If not, Equilon should sample <br /> the MWs within a week of completion. <br /> The work plan is hereby approved provided the above comments are incorporated. By 29 August 2000, <br /> please submit a schedule to: (1)Implement the work plan and (2) Submit the investigation report. The <br /> investigation report should be prepared in general accordance with Attachment 1,Items To Be Included <br /> In A Site Assessment Report. <br /> California Environmental Protection Agency <br /> pia Recycled Paper <br />