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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> JOGi KHANNA M.D.,M.P.H. <br /> Health Officer <br /> P.O. Box 2009 (1601 East Hazelton Avenue) • Stockton, California 95201 <br /> (209) 468-3400 <br /> C -7t <br /> ANN ARNEY JAN2 2 1993 <br /> 650 MANAGEMENT CORPORATION <br /> 2121 SAN JACINTO TOWER STE 1060 <br /> DALLAS TX 75201 <br /> RE: Diamond Lumber SITE CODE: 2292 <br /> 224 N. Main <br /> Lodi, CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) <br /> has reviewed the letter dated October 23, 1992 and the Quarterly Groundwater <br /> Monitoring" report dated October 1992 prepared by Steffen, Robertson and Kirsten for <br /> the above referenced site. <br /> PHS/EHD concurs that containerized soil from the monitoring well installation can be <br /> spread over non-asphalt areas of the site. <br /> Since the purged water from the monitoring wells evidences lead content above Federal <br /> and State Maximum Contaminant levels for drinking water PHS/EHD does not concur <br /> with its disposal over site soils. You may contact the City of Lodi Public Works <br /> Department for permission to dispose of the contaminated water to the public sewer. <br /> If disposal to the public sewer is not approved the purged water must be removed from <br /> the site by an authorized company under manifest and copies of receipts should be <br /> provided to PHS/EHD. <br /> Lead was again detected in water samples from monitoring wells one and three. <br /> Quarterly monitoring and sampling should continue at the site. <br /> Gradient determination is important in determining if monitoring wells are correctly <br /> placed at a site. The groundwater gradients are slight in San Joaquin County and are <br /> influenced by operation of nearby wells. PHS/EHD has not,received the survey of wells <br /> located within 2000 feet of the site to date. Please submit this information in the next <br /> quarterly report. <br /> A Dtvisinn of san Joaquin Counry Health Pare Services <br />