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CALIFORNIA GEOPHYSICAL GROUP, INC . <br /> 12709 Poway Road , Suite 202 , Poway, CA 92064 Tel : (619) 486 - 1323 <br /> October- 23 , 1990 �� - <br /> Environmental Health Divnu � <br /> San Joaquin Ccwnty <br /> 1601 E . Hazelton Ave . N <br /> Stockton Ca . 95205 �1T/ /ry .? <br /> Attn : Mr . Steve Schneider <br /> Re : Quarter Report EXXON Station , i 1 ,; , Charter. Way , Stockton , <br /> Ca . <br /> On October 1 , 1990 , Twining Laboratories attemped to sample the <br /> monitoring wells at. this site . Attached is a copy of their <br /> findings . <br /> As can be seen thi wells were dry clue to the summer dra7,vdown in <br /> this arra caul.- ed by pumping . Although the wells were drilled and <br /> cased 104 feet below the water table in January , this distance <br /> was not enough to compensate for the drawdown . <br /> We have obtained a few water table reports of the Stockton area <br /> and find drawdowns of over 15 feet to be common . However , in all <br /> cases the water- table reeovets to near its previous pos :iti. ot , We, <br /> therefore , feel the water will be measurable at the new <br /> quarterly sampling in January 1. 99J. . <br /> , r �, lit� C �a �sSen <br /> Calif . Reg . Environmental Assessor- !# 1979 <br /> CC Mr . Roger Liston <br />