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• MACHADO PROPERTY Page 5 <br /> WKA No. 6078.02 <br /> November 1, 2004 <br /> begun south of Grant Line Road, onto the subject property, due to site access issues. Therefore,Mr. <br /> Hurd could not tell us the exact location of the pipeline on the subject property or if any <br /> contamination is present along the pipeline alignment where it crosses the subject property. <br /> Archived Building Records <br /> We reviewed archived permit record databases for the subject property at the San Joaquin County <br /> Department of Public Works,Building Inspection Division. This office maintains structural <br /> permit records on microfilm dating back to the 1960s. During our review of the County records, <br /> no structural permits were encountered for the subject property. This finding is consistent with <br /> our experience in that we typically do not encounter structural building department records for <br /> historic rural residential development or farm/ranch/dairy sites,because the historic development <br /> on such sites often predates the commencement of archiving by the County building department. <br /> • Agricultural Review <br /> We discussed the agricultural history of the subject property with a staff member at the San <br /> Joaquin County Agricultural Commissioners Office. The staff member informed us that the <br /> property was predominantly used for hay crops and that no Restricted Use Permits or Annual <br /> Pesticide Use Reports were on file for the subject property. We observed no obvious surficial <br /> evidence of chemical misuse during our field reconnaissance. <br /> Historic Topographic Mans Review <br /> We reviewed historic U.S. Geologic Survey(USGS)topographic maps with coverage of the subject <br /> and adjacent properties at the California State Library. Maps dated 1914 and 1978 were reviewed; <br /> the results of the maps review are each discussed below. It should be noted that the 1914 <br /> topographic map was formerly named the Bethany quad. The 1978 version of the topographic map <br /> containing the subject property (Clifton Court Forebay, California) is included as Plate 2. The <br /> property lies in the southeast portion of Section 16, Township 2 South,Range 4 East,Mount Diablo <br /> Base and Meridian. The property has a USGS-reported ground surface elevation of approximately <br /> +80 feet to +100 feet mean sea level (msl). <br /> • <br /> INA[i nra.in❑u <br />