SITE INFORMATION AND CORRESPONDENCE

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Diamond Lumber-Lodi,CA Page 2 The first sentence of the fifth paragraph states a PHS/EHD staff member noted during the monitoring well sampling on November 25, 1991,the blue ice in the cooler was not frozen,.and not capable of maintaining the samples in cool ,condition. 'It should be noted that Margaret Lagorio (PHS/EHD) was on-site during monitoring well sampling, and mentioned to the SRK field hydrogeologist that the water samples was not sufficiently cool. SRK complied with her request and additional frozen blue ice was placed in the cooler prior to shipment to the laboratory: The Chain-of-Custody states the water samples were received in good condition and cool (40C). The second sentence of the fifth paragraph states informnation regarding transport of the water samples'tfrom California to Washington is not'documented on the Chain-of-Custody. The Chain- of-Custody includes the sample location in the Project Name, 'Diamond Lumber-Lodi', and in . the Sample Identification, "SRK-MWl-LODP'. The top of,,the-Chain-of-Custody form clearly states the name and address of North Creek Analytical in Bothell, Washington. Please note that the copy of .the Chain-of-Custody was relinquished on November 26, 1991, by SRK. Unfortunately the copy of the Chain-of-Custody that was included in the report was photocopied from a very light carbon copy that did not reproduce the signature, date, and'time the samples were relinquished. Please find a copy of the Chain=of-Custody that adequately notes that information. If you Have any questions or require additional information, p lease contact myself at (206) 8817 2233 or,Dave Schwieger at (303) 985-1333. With regards, 1 STEFFEN ROBERTSON AND KIRSTEN (U.S):INC. Rob Gwilym, C.P.G. Principal, Senior Environmental Geoscientist cc: Ann Arney; Diamond RG/sal Steffen Robertson and Kirsten 23504.24\GO LU 11 a.04L