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Soil Suitability and Nitrate Loading Study <br />POST MAN PROPERTY <br />14250 South Jack Tone Road, Manteca, California <br />TABLE OF CONTENTS <br />SECTION PAGE <br />8.0. GROUNDWATER ANALYSIS............................................................................10 <br />8.1. DESCRIPTION OF LOCAL GROUNDWATER ................................................ 10 <br />8.2. EXISTING OR POTENTIAL GROUNDWATER CONTAMINATION ................ 10 <br />8.3. CURRENT AND FUTURE USE OF GROUNDWATER AT THE SITE.............10 <br />9.0. IMPACT OF NITRATE TO GROUNDWATER....................................................11 <br />9.1. CURRENT OFF-SITE SOURCES OF NITRATE ............................................. 11 <br />9.2. IMPACT OF RAINFALL CONTRIBUTION TO NITRATE LOAD ......................11 <br />9.3. CURRENT ON-SITE SOURCES OF NITRATE ............................................... 11 <br />9.4. FUTURE ON-SITE SOURCES OF NITRATE .................................................. 12 <br />9.5. DENITRIFICATIONS CAUSED BY SOILS.......................................................12 <br />9.6. MASS BALANCE OF NITROGEN LOADING .................................................. 13 <br />9.7. IMPACT OF NITROGEN LOADING FROM SITE PROJECT TO <br />DOWNGRADIENT WATER SOURCES..................................................................... 15 <br />10.0. TOTAL NITRATE IMPACT FROM PROPOSED PROJECT...............................15 <br />11.0. MITIGATION METHODS PROPOSED...............................................................15 <br />12.0. CONCLUSIONS AND RECOMMENDATIONS...................................................16 <br />13.0. LIMITATIONS.....................................................................................................16 <br />FIGURES <br />Figure 1 — Location Map <br />Figure 2 — Site Plan <br />APPENDICES <br />Appendix A — Parcel Vicinity Map/Air Photo and Information <br />Appendix B — Onsite Well Permit <br />Appendix C — McCampbell Analytical, Inc. Lab Report <br />Appendix D — Percolation Test Sheetl Onsite Wastewater Treatment System Permit - <br />Percolation Test <br />Appendix E — CIMIS Rain Evapotranspiration Report 2014-2021 <br />