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w PUBLIC HEALTH SERVICES <br /> � PA <br /> SAN JOAQUIN COUNTY a s <br /> I ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M . D. , M. P.H. , Health Officer • u. . P. . <br /> r {G%FUP�\ <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> JUL 0 5 2009 <br /> CRAIG OGATA <br /> DIRECTOR OF FACILITIES MANAGEMENT <br /> 212 N SAN JOAQUIN STREET SUITE A <br /> STOCKTON CA 95202 <br /> RE: San Joaquin County Owned Sites Contaminated from Leaking Underground Storage <br /> Tanks <br /> J On July 3, 2001 , a meeting was held in the office of San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS/EHD) to discuss the investigations and remedial actions at <br /> San Joaquin County owned sites that are contaminated from unauthorized releases from <br /> underground storage tanks. Lori Duncan , Dot Lofstrom , Sam Savig and I represented PHS/EHD . <br /> Kerry Wasson and Bob McMillen represented the County as the responsible party for the <br /> contaminated sites. The following is a summary of the site discussions and PHS/EHD directives <br /> for the sites. It was discussed that the Airport facility at 5000 S . Airport Way, Stockton , has not <br /> been assigned to your department for representation . PHS/EHD will direct the responsible <br /> parties for the Airport facility to submit a work plan to investigate the contamination at that site . <br /> It was discussed that a limited amount of money has been allocated by the County for the <br /> investigation and remediation of these sites. It was also discussed that the State of California has <br /> recognized that Methyl Tertiary Butyl Ether (MTBE) is a risk to the environment and that priority <br /> for further work at sites would be based on site specific risk factors. <br /> 1810 E. HAZELTON, STOCKTON <br /> Soil and groundwater contamination of MTBE as well as petroleum hydrocarbon contaminants <br /> has been confirmed at this site. Currently, this site is of highest priority. The vertical and lateral <br /> extent of the contamination in the soil and groundwater must be defined . A survey to locate all <br /> wells within 2000 radial feet of this site was conducted . The Department of Water Resources was <br /> contacted but well logs indicating the location and construction of the two wells identified were not <br /> provided . California Water Service was also contacted but information on their seven wells that <br /> were identified was not provided . There was no discussion about any commercial or industrial <br /> sites (including Diamond Walnut) that may have wells nor was their discussion about the City of <br /> Stockton wells located at 1050 Diamond . The well survey information was faxed to PHS/EHD <br /> and the map is not clear. The above information can be compiled and submitted to PHS/EHD by <br /> Facilities Management staff. A work plan to continue the site investigation has been approved by <br /> PHS/EHD . Other consultants will review the proposal and costs prior to this scope of work being <br /> performed or scheduled . <br /> 145 S . SUTTER, STOCKTON (HUMAN SERVICES) <br /> Quarterly sampling and monitoring of the groundwater at this site must continue. Analysis for <br /> oxygenates has been performed on the groundwater samples collected from the monitoring wells <br /> at this site and were not detected so this analysis can be discontinued . The vertical and lateral <br /> extent of contamination at this site has not been defined . This definition will be required later. <br /> Groundwater has risen since the initial investigation at this site was performed . The benzene <br /> identified in the vadose zone (soil above groundwater) previously is now in the saturated zone. <br /> The potential for benzene in the building air should be evaluated . This evaluation should be <br /> submitted by September 1 , 2001 , <br /> A Division of San Joaquin County Health Care Semis <br />