Earth Materials Laboratory Report No. EM-170 covers the laboratory tests made on one type of soil from Logan, Utah, for the purpose of using the soil in soil-cement canal lining experiments. The intention was that two types of soil would be used for experimental linings at Logan, Utah; a fine sandy soil, poorly graded with little or no silt (Classification Symbol SP) and a fine sandy soil with excess silt (Classification Symbol SF-silty). These field test sections which will provide durability and permeability information gathered under natural conditions were carried out as part of a joint lower-cost canal lining experiment by the Utah Agricultural Experiment Station, the Soil Conservation Service, and the Bureau of Reclamation. When Report EM-170 was written (April 19, 1948) only materials of the "SF-silty" type were available for testing. This material was identified as Laboratory Sample No. 11H-24. A second shipment of samples on June 11, 1948, included a material of the SP type (Laboratory Sample No. 11H-X65) and laboratory tests were begun on this material.
United States Department of the Interior, Bureau of Reclamation, "Stabilization Studies on Soil-Cement Mixtures for Experimental Lining--Logan Experimental Section--Logan, Utah" (1949). Elusive Documents. Paper 101.