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2 <br /> Page 2 <br /> R, Consulting, Inc. November 18, 2008 <br /> Environmental- Engineering- Geology Project Number 2008021 <br /> SOIL SUITABILITY STUDY <br /> TABLE OF CONTENTS <br /> 1. INTRODUCTION AND PROPOSED DEVELOPMENT..................................................................................3 <br /> Descriptionof Site....................................................................................................................................................4 <br /> Description of the Proposed Development...............................................................................................................4 <br /> ParcelLocation Map.................................................................................................................................................4 <br /> SiteMap....................................................................................................................................................................4 <br /> 2. PRESENT AND PAST USES OF THE SITE.....................................................................................................5 <br /> PresentUses of the Site............................................................................................................................................5 <br /> PastUses of the Site.................................................................................................................................................5 <br /> 3. EXISTING AND PROPOSED SEPTIC TANK USAGE....................................................................................5 <br /> Description of the Existing On-Site Septic Tank Usage...........................................................................................5 <br /> SiteSeptic Permit History........................................................................................................................................5 <br /> Discussion of On-Site Septic Tank Repair History..................................................................................................6 <br /> Description Of Existing Septic Tank Usage In The Area.........................................................................................6 <br /> General Area Septic System Permit History.............................................................................................................6 <br /> General Area Septic Tank Repair History................................................................................................................7 <br /> Description Of Proposed Or Expected Maximum Septic Tank Usage On Site........................................................7 <br /> 4. Groundwater Information....................................................................................................................................7 <br /> Description Of The Depth And Gradient Of Groundwater In The Area..................................................................7 <br /> Ground Water Contamination Issues in the Area.....................................................................................................7 <br /> WaterSample Location............................................................................................................................................8 <br /> WaterSample Constituents.......................................................................................................................................8 <br /> WaterSampling Handling........................................................................................................................................8 <br /> Chain-of-Custody.....................................................................................................................................................8 <br /> 5. Soil Profile Information.......................................................................................................................................8 <br /> SiteMap....................................................................................................................................................................9 <br /> Description of Borehole Dimensions........................................................................................................................9 <br /> Descriptionof Soil Lithology...................................................................................................................................9 <br /> Discussionof Soil Lithology....................................................................................................................................9 <br /> 6. Percolation Test Information.............................................................................................................................10 <br /> SiteMap Showing Test Locations..........................................................................................................................10 <br /> Numberof Percolation Tests..................................................................................................................................10 <br /> Borehole Preparation and Presoak..........................................................................................................................10 <br /> Condition of the test holes after pre-soak...............................................................................................................10 <br /> PercolationTest Methods.......................................................................................................................................I 1 <br /> Percolation Test Form ..................................... <br /> Discussion of the Peculation Test Results..............................................................................................................11 <br /> Discussion of the Septic System Size.....................................................................................................................12 <br /> 7. CONCLUSION..................................................................................................................................................12 <br /> 8. LIMITATIONS..................................................................................................................................................12 <br /> UserReliance..........................................................................................................................................................13 <br /> 9. PROFESSIONAL SIGNATURE.......................................................................................................................13 <br /> PLATES -Maps <br /> APPENDIX -Percolation Test Forms—Lab Results—Septic Permits <br /> 1R SQUARED CONSULTING,INC. ENVIRONMENTAL ENGINEERING GEOLOGY <br /> 6532 MCNEIL COURT,VALLEY SPRINGS,CA 95252 PHONE(209)772-3841 FAX(209)7404303 <br />