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Extended Site Characterization Report, 7500 West Eleventh Street, Tracy, CA. Page 49 potable water-supply wells that supply residential, industrial and commercial properties near the site, one irrigation well, two closed potable water-supply wells and a total of 29 _ groundwater-quality monitoring wells, including the 15 monitoring wells that have been installed asp art of the characterization program at the 7500 West Eleventh Street property. Locations of each of those wells are shown on Figure 2 and information regarding their depths and well construction details, where available, are summarized in Table 5. (Note: Table 5 includes information on an additional well that was installed at 7601 West Eleventh Street in August 2002 to supply potable water to that site, which is currently being developed for commercial purposes.) 8.3 Compilation of Well Data In a letter dated October 26, 2001, the SJCEHD requested an additional search for residential, industrial and commercial wells, including a compilation of all available data regarding well construction details and other information about each of the wells =_ identified in the area. However, when that scope of work was included in the Navarra's application for funding under the California Underground Storage Tank Cleanup Fund (USTCF) the State Water Resources Control Board (SWRQB) refused to fund that open- ,_J ended search for well information. Instead, they stated that they were prepared to fund only a focused search for, and preparation of a compilation of available data regarding, the construction details and use those wells in which the groundwater may be at least at If `} some risk of being affected by the release of hydrocarbon fuels at 7500 West Eleventh Street. SJC agrees with this rational approach and has limited its search for well construction details and other related information to the six potable water-supply wells located either within, or in the close vicinity of, the area where groundwater is affected by components of hydrocarbon fuel. To obtain available data on the depth and construction of the wells in the class described above, SJC applied to both the California State Department of Water Resources (DVWR) and the SJCEHD to make a search of those agencies' files. Both agencies were subsequently visited in person by SJC staff, Inquiries were also made of owners and tenants of the properties where those wells were located. Unfortunately, essentially no information of technical value is available for many the wells in question. Where well logs, well construction details or any other records were found, copies are provided in Appendix D and the substance of what is known is presented below. (Note: In each case where well logs were found, the permission of the well owners was obtained for inclusion of the logs in this report, which will be available for public review.) 8.3.1 Potable Water-supMlyWell at 7500 West Eleventh Street This well, located inside the Casa Mendoza restaurant, supplies potable water to the restaurant. An annual permit fee is paid to the SJCEHD for oversight of the well, water from which is periodically tested according to requirements of that agency. However, after repeated inquiry at the SJCEHD, SJC has been unable to obtain any records of those tests. Permit compliance is the responsibility of the restaurant operators. The Navarras do t. not have a copy of the well log, if such exists. None was found at either the SJCEHD or sic