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1 <br /> n <br /> PART II: NITRATE LOADING STUDY <br /> SJC APPLICATION NUMBER: PA-07-298 (SA) <br /> 7099 EAST PELTIER ROAD,ACAMPO, CALIFORNIA <br /> TABLE OF CONTENTS <br /> Page No. <br /> 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . . . . . . . . 1 <br /> 2.0 CHEMICAL AND PHYSICAL PROPERTIES OF SOIL . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 2.1 Chemical and Physical Soil Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 2.2 Mass Transport Soil Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> #i 3.0 GROUND WATER ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 3.1 Regional Ground Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 3.2 Potential Ground Water Contamination Issues . . . . . . . 2 <br /> 3.3 Current and Future On-Site Ground Water Uses . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> 4.0 SOURCES AND IMPACT OF NITRATE TO GROUND WATER . . . . . . . . . . . . . . . . 3 <br /> 4.1 Current Off-Site Sources of Nitrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> 4.2 Contribution of Rainfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> 4.3 Current On-Site Sources of Nitrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> 4.4 Future On-Site Sources of Nitrate 4 <br /> 4.4.1 Quantity and Quality of Domestic Wastewater From Proposed Project . . . 4 <br /> 4.4.2 Denitrification Estimate . . . . 5 <br /> 4.5 Nitrate Loading Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 4.6 Impact of Nitrate Loading to Nearby Water Sources . . . . . . . . . . . . . . . . . . . . . . . . 6 <br /> 5.0 DISCUSSION OF NITRATE LOADING RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br /> 5.1 Total Nitrate Impact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br /> F! 5.2 Methods of Mitigation . 7 <br /> 6.0 CONCLUSIONS AND RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> 6.1 Signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> 6.2 Attachments 7 <br /> i <br /> F-i <br /> 7.0 LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> 8.0 SELECTED REFERENCES . . . . . . . . . . . . . . . . . . . . I . . . . . . I . . . . . . . . . . . . . . . . . . . . . 8 <br /> APPENDIX <br /> DEEP PERCOLATION OF RAIN —PLATE NO. 9 <br /> NITRATE LOADING CALCULATION —PLATE NO. 10 <br />