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KLEINFELDER <br /> 5.2. VADOSE ZONE SOIL ANALYSES <br /> The soil samples will be collected from the 6-inch bgs interval, 3-foot bgs interval and the 6-foot <br /> bgs interval. The three soil samples from each boring location(total of nine)will be submitted for <br /> the following analyses and methods: <br /> • Nitrates as Nitrogen by EPA Method 300.0 <br /> • Total Kjeldahl Nitrogen(TKN)by EPA Method 300.0 <br /> • Ammonia as N by EPA Method 350.3 <br /> • Chloride by EPA Method 300.0 <br /> • Total Volatile Solids by EPA Method 160.4 <br /> • Calcium by EPA Method 200.7 <br /> • Magnesium by EPA Method 200.7 <br /> • Sodium by EPA Method 200.7 <br /> • Sulfate by EPA Method 300.0 <br /> • Total Alkalinity(Series)by SM 403 <br /> • Cation Exchange Capacity(CEC)by EPA Method 9080 <br /> • Sodium Adsorption Ratio (SAR) <br /> • Specific Conductivity by EPA Method 120.1 <br /> • pH by EPA Method 150.1 <br /> In the event that the above analytical methods are not used, a comparable method shall be <br /> employed. <br /> 50890.E01/ST05 R35 8/IDZ:ly <br /> ©2005,Kleinfelder,Inc. Page 8 of 12 <br /> April 29,2005 <br />