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n n <br /> TABLE OF CONTENTS <br /> SOILSUITABILITY STUDY............................................................................................1 <br /> Introduction ................................................................................................................1 <br /> Proposed Development.............................................................................................'I <br /> SiteDescription..........................................................................................................'I <br /> PastUses of the Site..................................................................................................2 <br /> Existing and Proposed Septic Tank Usage..............................................................2 <br /> ExistingSeptic System ..................................................................................2 <br /> Proposed Septic 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...............................................................3 <br /> Expected On-Site Maximum Septic Tank Usage...........................................3 <br /> GroundWater Information.........................................................................................3 <br /> Depthand Gradient........................................................................................3 <br /> Potential Ground Water Contamination Issues..............................................3 <br /> On-Site Wells.............................................................................. ......3 <br />+' Water Sample................................................................................................4 <br /> Soil Profile and Geologic Information......................................................................4 <br /> SoilBorings.....................------...............................................................................5 <br /> Discussion of Soil Lithology...........................................................................5 <br /> PercolationTest.........................................................................................................6 <br /> Preparation and Presaturation of Percolation Test Holes..............................6 <br /> Percolation Test Procedure............................................................................6 <br /> Percolation Test Results................................................................. .......6 <br /> Discussion of Percolation Test Results..........................................................7 <br /> Discussion of Septic System Sizing...............................................................7 <br /> NITRATE LOADING STUDY...........................................................................................8 <br /> Mass Transport Soil Properties ................................................................................8 <br /> Sourcesof Nitrate......................................................................................................9 <br /> Contributionof Rainfall .............................................................................................9 <br /> Quantity and Quality of Domestic Wastewater......................................................10 <br /> Denitrification Reductions.......................................................................................11 <br /> Nitrate Loading Estimate.........................................................................................12 <br /> Discussion of Nitrate Loading Results...................................................................13 <br /> Total NitrateImpact.._-.................................................................................13 <br /> CONCLUSIONS AND RECOMMENDATIONS .............................................................14 <br /> LIMITATIONS................................................................................................................15 <br />$ SELECTED REFERENCES ..........................................................................................16 <br /> LOG E0915 <br />