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enviros® <br /> June 10, 1997 <br /> Mr. Michael Infurna <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P.O. Box 388 JJJ'i���(fg\yL:r jl <br /> Stockton, California 95201 J`►�J� <br /> JUN 13 1997 <br /> RE: Shell Service Station ENVIRO <br /> 3011 W. Benjamin Holt Drive PERMIT NTAL ES�H <br /> Stockton, California <br /> WIC 204-7524-4305 <br /> Dear Mr. Infurna: <br /> Per my telephone call, attached is a corrected"Well Concentrations" table for the April 15, <br /> 1997 quarterly report submitted for this site. Data for Well MW-2 were erroneously <br /> reported on this table as 7.6 parts per billion (ppb). As the lab data contained in this report <br /> show, the value for Well MW-2 is in fact 7.6 parts per million (ppm). The table has been <br /> corrected to show this value, converted to 7600 ppb. <br /> Also enclosed are data from tank testing performed after installation of the new <br /> underground storage tank system. These data show that the tanks passed all testing. No <br /> evidence of a release from these tanks has been identified through inventory records or tank <br /> and line monitoring equipment. <br /> If you have any questions, please contact me at(707) 935-4852. <br /> Sincerely, <br /> Enviros, Inc. <br /> //�111411c, <br /> Diane M. Lundqu' t, P.E. <br /> Senior Engineer <br /> C46725 <br /> cc: Mr. Alex Perez, Shell Oil Products Company <br /> Ms. Elizabeth Thayer, Central Valley Regional Water Quality Control Board <br /> Ene/roa, Inc. 270 Perkins Street Sonoma, California Tel 707/935-4850 <br /> P.O. Box 259 95476-0259 Fax 707/935-6649 <br />