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M04030GE <br />2/9/04 <br />Page Two <br />characteristics of the sand and gravel material. The results <br />of the percolation tests are presented on Figure 5. The <br />percolation tests indicate a percolation rate ranging from about <br />two (2) min/in to less than one (1) min/in. The percolation test <br />results indicate little to no resistance to water flow through <br />the sand and gravel material. <br />The laboratory study included performing sieve analysis tests <br />of samples of sand and gravel material obtained from the test <br />holes. The sieve analysis test results are presented on Figures <br />6 and 7. The sieve analysis test results indicate a fine grained <br />material content, smaller than a number 200 mesh sieve, of about <br />3.6 to 6.5 percent. The sieve analysis test results indicated <br />that the sand and gravel material is relatively clean and will <br />likely have a fast permeability rate. <br />If you have any further questions concerning the geotechnical <br />engineering aspects of your project or if we may be of further <br />assistance please contact us. <br />Respectfully submitted, <br />LAMBERT AND ASSOCIATES <br />/i//i <br />n W <br />ston, P.E. <br />Iv''~IJ/nr <br />Reviewed by: _._._...---~ <br />Dennis D. Lambert, P.E. <br />Lambert anD ~~~ociate~ <br />CONSULTING GEOTEOHNICAL ENGINEERS ANO <br />