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TABLE OF CONTENTS <br /> SOILSUITABILITY STUDY.............................................................................................1 <br /> Introduction.................................................................................................................1 <br /> ProposedDevelopment..............................................................................................1 <br /> SiteDescription...........................................................................................................1 <br /> Existing and Proposed Septic Tank Usage..............................................................2 <br /> ExistingSeptic System...................................................................................2 <br /> ProposedSeptic System................................................................................2 <br /> On-Site Septic Permit History.........................................................................2 <br /> Existing Septic Tank Usage in the Vicinity.....................................................2 <br /> Septic Permit History in the Vicinity................................................................2 <br /> Ground Water Information .........................................................................................3 <br /> Depthand Gradient........................................................................................3 <br /> Potential Ground Water Contamination Issues..............................................3 <br /> On-Site Wells..................................................................................................3 <br /> WaterSample.................................................................................................3 <br /> Soil Profile and Geologic Information.......................................................................4 <br /> SoilBorings....................................................................................................4 <br /> Discussion of Soil Lithology............................................................................4 <br /> PercolationTest..........................................................................................................5 <br /> Preparation and Presaturation of Percolation Test Holes..............................5 <br /> Percolation Test Procedure............................................................................5 <br /> Percolation Test Results ................................................................................5 <br /> Discussion of Percolation Test Results..........................................................6 <br /> Discussion of Septic System Sizing...............................................................6 <br /> NITRATE LOADING STUDY...........................................................................................7 <br /> Mass Transport Soil Properties.................................................................................8 <br /> Sourcesof Nitrate.......................................................................................................8 <br /> Percolating Recharge Waters....................................................................................8 <br /> Recharge Scenario 1 — CIMIS Ripon Station.................................................9 <br /> Recharge Scenario 2— CIMIS and WRCC Tracy Pumping Plant Stations....9 <br /> Qualityof Rainwater...................................................................................................9 <br /> Quantity and Quality of Domestic Wastewater......................................................10 <br /> Denitrification Reductions.......................................................................................10 <br /> NitrateLoading Estimate..........................................................................................10 <br /> Discussion of Nitrate Loading Results...................................................................11 <br /> TotalNitrate Impact...................................................................................... 11 <br /> CONCLUSIONS AND RECOMMENDATIONS..............................................................12 <br /> LIMITATIONS.................................................................................................................13 <br /> SELECTED REFERENCES...........................................................................................14 <br /> LOGE 20-44 <br />