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California Regional Water Quality ,C0130A d = <br /> Central Valley Region <br /> 1. <br /> Robert Schneider,Chair A 8� 3 Y <br /> Winston H. for a Gra Davis <br /> Secretary ji,r Fresno Branch Office Governor <br /> Environmental Internet Address: http://www.swrcb.ca.gov/-rwgcb5 <br /> Protection 1685 E Street,Fresno,California 93706-2020 <br /> Phone(559)445-5116•FAX(559)445-5910 <br /> 20 October 2003 <br /> Mr. M. Scott Mansholt <br /> ChevronTexaco <br /> Chevron Environmental Management Company <br /> P.O. Box 6012 <br /> San Ramon, CA 94583 <br /> REVIEW OF WORK PLAN - ARCOS PROPERTY/FORMER VERNALIS PUMP STATION, <br /> VERNALIS, SAN JOAQUIN AND STANISLAUS COUNTIES <br /> We have reviewed the referenced property Work Plan, dated 15 October 2003, for the ChevronTexaco Old <br /> Valley Pipeline (OVP) project at the Arcos Property located near Vernalis. The Arcos property occupies <br /> the southern portion of the former Vernalis Pump Station. The northern portion, formerly called the <br /> Roberts property, has been sold and will be referred to as the Bellini property. <br /> You have proposed the following tasks for the Arcos investigation: <br /> • Conduct a detailed historical site evaluation to identify areas of potential environmental concern based <br /> on the operational facilities associated with the former OVP pump station. According to the Work <br /> Plan, a portion of the research and/or preliminary historical investigation was recently completed or is <br /> being conducted at this time. <br /> • Conduct a preliminary soil and groundwater investigation by advancing 12 exploratory borings located <br /> near areas of potential concern identified during the historical evaluation described above. <br /> Approximately 24 representative soil samples and six groundwater samples will be submitted for <br /> analysis. <br /> • We previously granted an extension for ChevronTexaco to submit the final investigative report for <br /> both the Bellini and Arcos properties by mid-January 2004. <br /> California Environmental Protection Agency <br /> Cc1 Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you <br /> can reduce demand and cut your energy costs,see our Web-site at http://www.swrcb.ca.gov/rwgcb5 <br />