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4.0 GROUNDWATER ANALYSIS <br /> 4.1 Description of the depth to groundwater, seasonal fluctuations of groundwater depth, <br /> directional flow and gradient: Description of depth to groundwater, seasonal fluctuations of <br /> groundwater, directional flow and gradient are referred to in Section 4 of the Soil Suitability <br /> Report prepared by Dillon& Murphy that is attached in the Appendix. <br /> 4.2 Description/discussion of any existing and/or potential groundwater contamination <br /> issues in the general location of the site: Description of existing or potential groundwater <br /> contamination issues in the general location of the site are referred to in Section 4.2 of the Soil <br /> Suitability Report prepared by Dillon& Murphy that is attached in the Appendix. <br /> 4.3 Description of the current use of groundwater at the site and of the future expected use <br /> of groundwater as related to the proposed development project: The depth to ground water <br /> in this area is approximately 170± feet according to the map of"Lines of Equal Depth to <br /> Groundwater" published Spring, 2024,by the San Joaquin County Flood and Water <br /> Conservation District. The gradient descends from east to west. This was verified with the <br /> California Department of Water Resource's Water Data Library. The results of the historic depth <br /> to ground water show that the relative depth has not changed drastically throughout the years. <br /> The proposed improvements will not have a negative effect on the current depth to ground water. <br /> See appendix for the site's depth groundwater tables and diagrams. <br /> 5.0 SOURCES AND CALCULATED IMPACT OF NITRATE TO <br /> GROUNDWATER <br /> 5.1 Description of all current off-site sources of nitrate to soil and groundwater in the <br /> general up gradient area and the contribution of nitrate load from these sources to the <br /> project site: Current off-site source of nitrate to soil and groundwater in the general up gradient <br /> area are increased by the contribution of nitrate loads from agricultural and residential sites with <br /> septic systems with no current impact to the site. The neighboring sites are all residential and/or <br /> agricultural with no major sources of pollution that could affect this project site. <br /> 2 <br />