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LUHDORFF & SCALMANINI 1'8 ebz <br /> Consulting Engineers <br /> jor,,Q I t-() PIL 30 Walnut Street <br /> Eugene E.Luhdorff,Jr.,Elf. DISTRICT Woodland CA 95595 iE <br /> Joseph C.Scalmanini,'PE,4 <br /> October 15 , 1982 <br /> t-F <br /> i <br /> San Joaquin County t <br /> Environmental' Health Services <br /> P.O. Box 2009 <br /> Stockton, California 95201 <br /> ATTN: MR. CARL BORGMAN <br /> RE : SJC PERMIT NO . 16335 <br /> WELL N0 . EW-la <br /> <� OCCIDENTAL CHEMICAL CO. <br /> LATHROP , CALIFORNIA ` <br /> Dear ,.Mr:,Borgman: <br /> The surface casing for the subject well was installed <br /> by Eaton Drilling Company of Woodland, California on Monday, �. <br /> September 27 , 1982 . The methodology and materials utilized <br /> met all applicable standards and specifications . <br /> The construction consisted of a 30-inch nominal diameter <br /> borehole to a. depth of 50 feet , with 52 feet of 20-inch <br /> Q O.D. x a-inch wall surface casing set in place . Leutralizers <br /> Areuse o t'he casing to ensure- its placement�in- the bore- <br /> hole . A cement grout mix was then introduced by means of <br /> a 2" I .D. "tremmie" pipe and concrete pump , and the grout <br /> was installed in one continuous pour until returns were <br /> witnessed at the surface . A total of 7 yards of cement <br /> grout were installed. <br /> Should you have any questions , please call . <br /> Very truly y,burs , <br /> Joseph C. Scalmanini <br /> JCS : 1jh <br /> 0 <br /> Ground Water Hydroiogy,Development and Management <br />