I forwarded your inquiry about clod boxes for characterization sampling to Dewayne Mays, Head, Soil Survey Laboratory. He can provide you clod boxes and other sampling needs if the samples are to be sent to the Soil Survey Laboratory for analysis. If so, please let him know how many of what supplies you need. If you would like to discuss your needs with him, please feel free to call him at (402) 437-5138 or
E-mail: dewayne.mays@nssc.nrcs.usda.gov