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SER110ESBL��. HEALTHpOUfN <br /> SAN JOAQUIN COUNTY In:n. :A <br /> JOGI KH ANNA 11.D,M.P.I4. <br /> Heilth Officer c •.. :P <br /> P.O.Box 2009 • (1601 East Hazelton Avenue) <br /> • Stockton,California 95201 <br /> (209) 468-3400 <br /> V <br /> JUAN QUIJANO <br /> TRI VALLEY GROWERS ASSOCIATION <br /> ENVIRONMENTAL SERVICES FE81 11992 <br /> P O BOX 1211 <br /> MODESTO CA 95353 <br /> RE: Tri Valley Plant T IN REPLY REFER TO SITE CODE: 1920 <br /> 26200 North Galt Road <br /> Thornton CA 95686 <br /> The meeting of February 4, 1992 which was attended by you and <br /> Chris Savage of Tri Valley Growers, Russell Juncal and Bill <br /> Channell of RESNA, Elizabeth Thayer of the Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) Mary Meays and <br /> Diane Hinson of the Environmental Health Division (PHS/EHD) was <br /> helpful. The following is an attempt to summarize the meeting. <br /> After a brief discussion of past activities a number of issues of <br /> concern were raised. <br /> RESNA assumed the position that since total lead concentrations <br /> were relatively uniform throughout the site, these concentrations <br /> may represent natural occurrences in the soil. Therefore, <br /> further analysis as outlined in the California Code of <br /> Regulations Title 22, Article 3 , Section 66261,24 would not be <br /> prudent. PHS/EHD has further evaluated the occurrences of native <br /> lead concentrations within San Joaquin County and given the <br /> relatively constant lead concentrations found throughout the Tri <br /> Valley site, additional soil borings for the purpose of lead <br /> analysis will not be required. <br /> A second issue somewhat related to the first was the confirmation <br /> sampling of the stockpile prior to backfilling the tank pit. The <br /> January 29, 1989 field compositing of eight samples to one sample <br /> (8: 1) was used to verify that the stockpiled soil was no longer <br /> contaminated. While it is recognized that this degree of field <br /> compositing is presently unacceptable, it was commonly practiced <br /> during the period of occurrence. <br /> Thirdly, as Beth Thayer, CVRWQCB, stated during the meeting any <br /> residual petroleum contaminants remaining within the soil will be <br /> addressed prior to the consideration of site closure. <br /> A Division of San Joaquin County Health(are Services 0 <br />