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Table 3877-3 Premium Topsoil Borrow <br />Requirement Minimum Maximum <br />Material Passing 2.0 mm (#10) Sieve 95% <br />Clay 10% 25% <br />Silt 25% 60% <br />Sand & Gravel 25% 60% <br />Organic Matter 5% 15% <br />pH 6.0 7.1 <br />Soluble Salts 0.15 siemens/m <br />1.5 mmho/cm <br />