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The third informational source is the Geotracker Site List from the State Water Resources Control Board for underground (USTs) and leaking underground fuel tanks (LUFTs). No USTs or LUFTs were noted on the Geotracker Site List. The fourth informational source is the 2003 Groundwater Lines of Equal Depth and Elevation Maps found in Appendix D illustrating the depth and directional flow of the underlying groundwater. The depth is approximately 20 ft MSL. Groundwater flow direction appears to be slightly in a northwesterly, then northerly direction. § 3.2 Description of all past on-site potential and/or known above and below ground sources of contamination identified at the project site would include nitrate, PCBs from electrical transformers, and agrichemical residues. As referenced, there was no analytical testing of any portion of the property. There is an extremely slight potential of DDT residual insecticide from farming operations that may have taken place on the property decades ago, although this is somewhat improbable due to the sandy soil, and inconsequential. Residual pesticide is inconsequential in my professional opinion because the vast majority of the property will remain in agricultural production. § 3.3 Description of all current on-site potential and/or known above ground and below ground sources of contamination identified at the project site include: No sources of current observable above-ground contamination. Subsurface contamination may be possible from the referenced sources, in addition to the on-site septic tank/leachfields, although this may be considered slight. Three, newer electrical transformers are on the property, as illustrated in the attached photographs. These transformers probably do not contain polychloride biphenyls (PCBs). If there was a leak or explosion, it would be the responsibility of the transformer owner to mitigate contamination. § 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 that has or may impact the project site includes: Information conveyed by the March 8, 2007 Envisions Program Documents illustrating no listings on or in proximity to the subject property. The two closest Leaking Underground Fuel Tanks (LUFTs) are approximately 2.5 miles to the south, which can both be considered upgradient to the subject property. These tanks and any leaking contents could not affect the property due to the distances involved. Agricultural spray drift (non-target) from the nearest agricultural production land affecting the property could be a possibility, since agricultural production occurs all around the subject property. The region has been, and continues to be intensely farmed, so nitrate contamination to the underlying groundwater from nitrogen fertilization is always a possibility. The agrichemical DBCP has been also detected in this locale. Page-4- Chesney Consulting