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Forward, Inc. <br />Post Office Box 6336 <br />Stockton, CA 95204 <br />Attention: Karrie Cummings <br />Subject: FIELD DENSITY TESTS <br />ASH PIT LEVEE <br />FORWARD, INC. LANDFILL <br />STOCKTON, CALIFORNIA <br />Gentlemen: <br />At your request, a representative of our firm observed earthwork <br />operations and performed tests at the subject project from July 30 <br />to August 3, 1990, on a full-time basis. Thirty tests were taken <br />by the nuclear probe test method at random locations on levee <br />embankment fill. The results of the attached field tests were <br />given to Mr. Larry Aksland on the testing dates. <br />The laboratory curves used to evaluate the relative degree of <br />compaction are as follows: <br />ASTM D-1557, METHOD "All <br />Material Description Maximum optimum Curve <br />and Source Dry Density Moisture Content Number <br />Tan silty clay, native 111.8 pcf 16.5% 33 * <br />Tan silty clay, native 113.5 pcf 16.4% 39 * <br />* Previously reported <br />If you have any questions, please contact us. <br />Respectfully submitted, <br />Patrick C. Dell, C.E. <br />WM: lr <br />Attachments <br />• <br />