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Water-Sediment Splitter for Runoff Samples Containing Coarse-Grained Sediment¹

ABSTRACT

A water-sediment sample splitter was designed and constructed for dividing samples up to 20 liters into three equal and representative smaller samples for chemical and physical analyses. This funnel-shaped device with a mechanical agitator divides samples containing particles up to 2 mm without first separating the sediment from the water. Evaluation showed that the splitter divided samples containing coarse sediments into three parts with a distribution of 33% ± 2% in each. The device has application in assuring representative samples of runoff from watershed or similar runoff studies.

¹ Contribution from Soil, Water, and Air Sciences, Southern Region, ARS, USDA, in cooperation with the Univ. of Georgia Agr. Exp. Sta. Supported in part by Interagency Support Agreement no. 13020 HHD between the Environmental Protection Agency, Office of Research and Monitoring, and the USDA, ARS.

² Soil Scientists, USDA, Watkinsville, Georgia 30677.

Received for publication April 13, 1973. Accepted for publication August 28, 1973.