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Geotechnical I V _ t\ .av r-1 <br /> "x NOV <br /> '✓„' _ _ E-4 TA <br /> 1:7'JI ,� 1 <br /> November 4, 1991 f� ✓ ,/ Er,LTH <br /> San Joaquin County <br /> Public Health Services <br /> Environmental Health Division <br /> Attention: Ron Valinoti, Director <br /> P.O. Box 2009 <br /> Stockton, California 95201 <br /> RE: Stockton Metropolitan Airport Underground Tank Removals <br /> Mr. Valinoti: <br /> Our firm has performed environmental assessment of more than 1000 acres of property within <br /> one mile of the Airport in the past three years. The majority of these lands are immediately <br /> westerly and northerly of Airport property. During these assessments, repeated <br /> ti► communications with Environmental Health staff and review of both County and Central <br /> Valley Regional Water Quality Control Board (CVRWQCB) files indicate that more than 15 <br /> underground fuel tanks have been removed from Airport property with soil contamination <br /> confirmed at several removal locations. While Environmental Health and CVRWQCB staff <br /> indicate that groundwater assessment work is warranted, none has been conducted. <br /> Our clients and their lending institutions routinely ask for follow-up on this issue. All we have <br /> been able to determine is that the groundwater assessment is warranted though no priority <br /> has been assigned. The lack of definition of the underground tank conditions as they relate <br /> to groundwater is a source of confusion to lenders. Some assessment work giving definition <br /> to the groundwater quality at the Airport would be very helpful. <br /> If you have any questions, please contact us. <br /> Very truly yours, <br /> RANEY GEOTECHNICAL <br /> .2?�'L <br /> e Gereghty py <br /> Registered Civil Engineer No. 47308 <br /> Registered Environmental Assessor No. 1621 <br /> MG:II <br /> 3176 INDUSTRIAL BLVD. • WEST SACRAMENTO,CA 95691 • TELEPHONE 916/371-0434 • FAX 916/371-1809 <br />