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Page Two <br />15 June 2015 <br />2 September 2015 <br />M15018MT <br />M15018MTr <br />therefore were not critical. Our analysis was based on soil sample characteristics from the <br />laboratory direct shear strength tests and these are: <br />- 123 pounds per cubic foot moist unit weight, above the phreatic surface <br />- 130 pounds per cubic foot moist unit weight, below the phreatic surface <br />- cohesion of 180 pounds per square foot and <br />- an internal angle of friction of 16 degrees. <br />Our analyses indicate a theoretical factor of safety for stability of 2.4 for the pond embankment <br />slope and 1.7 for rapid draw down condition. <br />If you have any questions regarding this letter please contact us. <br />Respectfully Submitted <br />Lambert ass <br />Dennis Lam ert, PE <br />flauTbert artb (�.ssvriates <br />CONSULTING GEOTECHNICAL ENGINEERS <br />AND MATERIAL TESTING <br />Appendix 2.05.3(4)-10 Page 3 September 2015 (TR -10) <br />