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• Page 5 September 16,2002 • Findings PHYSICAL AND CHEMICAL PARAMETERS of SAMPLED GROUNDWATER Attached sampling data sheets by Del Tech reflect in field measurements from MW Nos 1 through 6 Laboratory Analysis Reports from Sequoia Analytical are summarized Results of ground water sampling of a grab sample from BH No 3 collected June 6, 2002 are also included Reference ATTACHMENT 3, ANALYTICAL LABORATORY FINDINGS Chromatograms of the diesel like material found in the ground water during this and previous quarterly testing are similar Copies of results are extracted from previously forwarded laboratory findings and are attached for comparison Reference ATTACHMENT 4, EXTRACTS FROM ANALYTICAL LABORATORY ' FINDINGS- DECEMBER 20, 2002, MARCH 30, 2001, JANUARY 9, 2002 & April 11,2002 ' PHYSICAL PARAMETERS Initially, ground water gradient and bearing utilizing several nearby irrigation wells was approximated Review of a 1990 well survey includes much of the area within a ' 2,000 FT radius of the WOS site I am not aware of results from petroleum hydrocarbon sampling of the Victor monitoring well MW 3A or MW1A to date In April 2002, utilizing the measured depth to shallow water (Zone "A") and position of existing Monitoring Wells associated with the ongoing Victor Fine Foods Property project (Victor) a more accurate representation of gradient and bearing parameters was developed, please reference the attached Victor Fine Foods ' Monitoring Well Field Parameter Information for the March 1, 2002 samplings, extracted from CVRWQCB records and location data furnished by the report's author Note that the WOS site is within the area represented by these wells I ' believe they are representative of the immediate area's groundwater surface gradient of 0 002 FT/FT declining at a bearing of N 2 deg E Reference ATTACHMENT 5, GROUNDWATER GRADIENT and BEARING CALCULATION ' Within the immediate site area round water surface gradient information has , g been supplemented with depth to water findings taken from the newly installed monitoring wells with information also included in ATTACHMENT 5 This would support a surface gradient bearing of about N 3 deg W Both findings would be ' expected to vary dependent upon season TOC reference for depth to water and assumed elevations below ground surface ' (bgs ) were adjusted to a common datum used by the Victor Fine Foods study The datum was assumed valid and applied to the study by Barber for direct correlation between studied elevations 1 2 California Regional Water Quality Control Board Order No 5-01-057