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March 25, 2005 <br /> NOA Project Number: E05003A <br /> 3.0 PAST AND CURRENT SOURCES OF CONTAMINATION <br /> 3.1 Research Methods <br /> NOA employs a standard practice for review of database information. On a street map showing the <br /> location of the subject property, a circle is drawn one-quarter mile out from the property boundaries, <br /> and street maps or web-based mapping services are then used to determine address ranges for all streets <br /> within the quarter mile. All agency databases searchable by address are then searched for these address <br /> ranges. <br /> 3.1,1 Regional Water Quality Control Board <br /> Our office reviewed the Leaking Underground Storage Tanks(LUST)list Qanuary 2005),the WlaterPurueyors <br /> Quarterly Report on MTBE Qanuary 2005), and the Spills, Leaks, Investigations, and Cleanups (SLIC) list <br /> Qanuary 2005) on file with the Central Valley Regional Water Quality Control Board(CVRWQCB)4 in <br /> an attempt to determine if there are any files present at that agency which note the unauthorized release <br /> of a toxic or hazardous agent into the environment on the subject property or within a one-quarter mile <br /> radius of the subject property. The subject property was not listed on any of these databases,and no <br /> addresses within one-quarter mile of the subject property were found on the databases. <br /> 3.12 San Joaquin County Environmental Health Department <br /> According to Ms. Diane Martinez of the San Joaquin County Environmental Health Department <br /> (EHD),no files were available for the subject property address of 15445 East Wildwood Road'. <br /> The Underground Storage Tank Site Mitigation List,dated June 24,2004,and the LOP/Non-LOP Sites list, <br /> dated July 20,2004,were reviewed at the EHD on March 2, 2005. No listed sites were found within <br /> one-quarter mile of the subject property. <br /> The UST Program Facility Inventory by Facility Name,dated April 11,2001,was also searched at the EHD <br /> on January 24,2005 for the name of Wildwood Ranch. No records were found for the subject property. /3 <br /> 4California Regional Water Quality Control Board,Sacramento,www.swrcb.ca.gov. <br /> 'Personal Communication,February 4,2005. <br /> 5 <br />