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Geofngicaf?ecfwz-s Znc. <br /> C&B Equipment Page 4 <br /> Site Closure Check List <br /> { Project No.336.2 <br /> August 31, 1998 <br /> ' • A thick fine-grained clay and silt unit starts at a depth of approximately 30 feet and <br /> P PP Y <br /> extending to a depth of greater then 40 feet. In the field, Mr. Ron Rowe agreed that <br /> this unit was sufficient to form a reasonable contaminant migration barrier to prevent <br /> free movement of gasoline into deeper strata. <br /> • Groundwater gradient is consistent towards the N-NW. And the down gradient wells <br /> have not increased in contaminant concentrations, in fact the inverse is true. <br /> • No MTBE or other oxygenated fuel compounds are present on this site. <br /> t 16. WET or TCLP Tests Results <br /> Not applicable. <br /> This addendum was prepared by: <br /> GeologicafTechnics Inc. <br /> -1 <br /> -1 <br /> Michael J. Niemi <br /> Geologist <br /> `I Q�OFESslo <br /> c0 <br /> R.I.icABWVOw P r� <br /> UJ <br /> NO. <br /> Raynold I. Kablanow II,Ph.D. <br /> .1 California Registered Geologist 45234 <br /> �> Certified Hydrogeologist 4442 9r�OF CAvJ��- <br /> __a <br /> :i <br /> ' i <br /> i <br /> :j <br />