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/3.3 Description of all current on-site potential and/or known above and below ground sources of contamination identified at the project site: Presently, there are no underground storage tanks on the property and visual inspection did not produce any evidence of buried containers, as well as no odors that would be associated with buried chemical tanks. There are no above ground storage tanks on site as well. There are no above ground fuel tanks on the site. There is a drainage ditch along the perimeter of the property near the adjacent streets. /3.4 Description of all past off-site potential and/or known above and below ground sources of contamination identified in the area of the project site: Past off-site potential for contamination is the adjacent trucking facility. Other sources of potential contamination is the surrounding vineyards and the chemicals used in their farming operation. There is no knowledge of below ground sources of contamination in the area of the project site that has or may impact the project site. 13.5 Description of all past off-site potential and/or known above and below ground sources of contamination identified in the area of the project site: Present off-site potential for contamination is the adjacent trucking facility. Other sources of potential contamination are the surrounding vineyards and the chemicals used in their farming operation. There is no knowledge of below ground sources of contamination in the area of the project site that has or may impact the project site. 4.0 EVALUATION OF PAST AND CURRENT SOURCES OF CONTAMINATION IDENTIFIED AT OR NEAR THE SITE AND RECOMMENDATIONS FOR FURTHER ACTION: 4.1 Evaluation of each potential and/or known source of contamination identified for any real and/or potential threat to human health and the environment: The depth to ground water in this area is approximately 110 feet. Due to this depth, any pesticides, insecticides, and fertilizers used on the property in the past or present would have a minimal impact to the ground water. the use of approved best management practices for the containment of soil or any contaminates by straw waddles around the construction site and other practices to reduce the introduction of any dirt or contaminates into the storm runoff system will be required at the time of any future construction per County Building Department. The adjacent truck facility is also a potential for contamination due to the materials used to maintain these vehicles. This particular facility does not carry hazardous materials eliminating potential high risk contamination. 5.0 CONCLUSIONS AND RECOMMENDATIONS SECTION: 5.1 Discussion of the above evaluation: The aforementioned trucking facility creates the greatest potential for contamination. However, with safe material management practices in use, the potential for contamination should be at a minimum. 5.2 The Report is inclusive: All information in this report does not reference any other documents that are not contained in this report. 5.3 Report was signed, dated, and stamped: See below. 2 CA031 11\Surface and Subsurface Report 0504