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i s> <br /> Pombo Ranch Property <br /> Third Quarter Groundwater Sampling Report July 2005 <br /> Page: 3 <br /> , <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> Shallow ground water flow was to the northeast and southwest with very flat gradients. <br /> Low concentrations of gasoline petroleum hydrocarbons and volatile aromatic <br /> hydrocarbons were detected by the analytical laboratory in water samples collected from <br /> the monitoring well MW5 located down gradient from the former underground storage <br /> tanks. Low concentrations of fuel oxygenates were detected in the water sample collected <br /> from the monitoring well MW413 located at and immediate down gradient from the <br /> former underground storage tanks. The contamination is defined laterally and vertically. <br /> The dissolved oxygen low in the vicinity and down gradient of the release indicates that <br /> the biological breakdown of the groundwater contamination is occurring. Quarterly <br /> monitoring will continue to confirm the breakdown of the remaining contaminants. <br /> The above represents our best professional opinion as to environmental conditions at this <br /> site. These opinions were derived using data at hand, and standards of care common to <br /> the environmental consulting community in Northern California. There is the possibility <br /> that even with proper application of the above methodologies, there may exist on the <br /> subject property conditions that could not be identified within the scope of this sampling <br /> work or which were not reasonably identifiable from the available information. The <br /> methodologies included in this report are not intended to produce all inclusive or <br /> comprehensive results, but rather to provide the client with information regarding <br /> apparent suspicions of existing and potential adverse environmental conditions relating to <br /> the subject property. Additional work at this site may generate data that could lead to a <br /> change of opinion regarding conditions or appropriate remedial procedures or both. <br /> Prepared by: rFc��D ��0 <br /> �y r <br /> W f{Dvt�ll r��J,�l G� <br /> Robert Fourt, CHG "'�w <br /> Certified Hydrogeologist #180 'c'�:�-;;;,1�L` <br /> �IyY 1 RON:Gl�'hTgl . <br /> 4micel J. Klo z, A, REHS <br /> California Registered Environmental Assessor#02157 <br /> X60.02157 <br /> California Registered Environmental Health Specialist 44783 Expires: <br /> t� <br /> 9T6Ofi CA1,1¢0 <br /> �y <br />