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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> s: :s <br /> Karen Furst, M.D., M.P.H., Health Officer .• p <br /> 304 East Weber Avenue, Third Floor - Stockton, CA 95202 <br /> 209/468-3420 <br /> July 22, 1998 <br /> Arco Products Company <br /> EH & S <br /> Attn: William M. Zapka <br /> P.O. Box 6038 <br /> Artesia, Ca 90702-6038 <br /> RE: Existing Single wall tank upgrade requirements for tanks in San Joaquin County <br /> In order to meet the 1998 upgrade requirements the following general items, additional to <br /> any other State required upgrade requirements found in Article 6 title 23, must be <br /> provided in order to obtain approval from the EHD to keep the existing single wall tank <br /> system. <br /> A special inspector will be required to provide a determination on any single wall tank, <br /> for cathodic protection and for the structural soundness of the tanks. The EHD <br /> representative must be onsite and observe all inspections of the tank system made by a <br /> special inspector. Specific requirements of the inspection will be outlined by the EHD <br /> depending on the type and age of the tank to be upgraded. (CCR title 23 section 2660 <br /> (K)) <br /> Tanks that are single wall fiberglass, steel, or steel clad must have a site assessment prior <br /> to approval of the plan for upgrading. (CCR title 23 section 2660 (1)) Assessments are <br /> made after application to the EHD Site Mitigation Unit. You may contact Margaret <br /> Lagorio, Supervising RENS at 209-468-3449 for further information on applications for <br /> site assessments. <br /> If the site is found to be contaminated, no further action will be permitted until a cleanup <br /> plan is approved. If tanks are approved to be left in place on a contaminated site by the <br /> EHD, a monitoring system must be installed which meets the requirements of the Health <br /> and Safety code section 25296 (c). Any continuation of contamination or increase noted <br /> in a monitoring well system will result in the requirement that tanks be replaced with <br /> double contained tank systems. <br /> A Division of San Joaquin County Health Care Services <br />