SITE INFORMATION AND CORRESPONDENCE

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CALIFORNIA REGIOATER QU UA D CONTROL BOAR CaVEPA _— gg CENTRAL VALLEY R WON 8 3443 Routier Road, Suite A Sacramento, CA 95827-3098 Phone(916)255-3000 FAX 916 255-3015 Pete Wilson Governor ( ) �7 �In � � Fii 138 17 July 1997 Mr. Daniel Munzer Ms. Mirian Barbonio Munco, Inc. Chevron Chemical Company Munzer Family Trust 6001 Bollinger Canyon Road 401 E. Ocean Blvd., Suite 501 San Ramon, CA 94583 Long Beach, CA 90802 Ms. Karen Baril Mr. George Koppel Cargill, Inc. Koppel Stockton Terminals, Inc. P.O. Box 5624 (MS-24) 4135 Annapolis Road Minneapolis, MN 55440-5624 Lakewood, CA 90712 REQUEST FOR REPORT AND WORKPLAN, DRAFT MONITORING AND REPORTING PROGRAM, KOPPEL STOCKTONTERMTVVAL, SAN JOAQUINCOUNTY Thank you for meeting last week to discuss the progress of the soil and groundwater investigation at the Koppel Stockton Terminal, 2025 West Hazelton Street in Stockton. The purpose of the meeting was to list the investigative and remedial actions which need to be taken at the site and to decide on a timeline for their implementation. Accordingly, the group decided that the first task will be the submittal of a report documenting the in-situ denitrification bench tests conducted by Chevron. I look forward to receiving the report by the agreed-upon date of 1 August 1997. The second task is to produce a workplan to define the lateral and vertical extent of groundwater contamination. In order to delineate the plume in all four directions, both on-site and off-site groundwater samples must be collected. The workplan is due by 15 September 1997. The existing monitoring wells, and the monitoring wells installed at a later date, need to be sampled on a quarterly basis. To that end, I have prepared the enclosed draft monitoring and reporting program (MRP). While this MRP is will become a Board Order when finalized, its issuance is not intended as a