In order to serve the West Texas region for the next 100 years, the City of Lubbock is planning to construct a new landfill in Abernathy, Texas. A falling-head hydraulic conductivity test has been conducted on a specimen of clay that is considered to be used as a liner for the landfill. The clay specimen was 4 inches in diameter and 1- inch tall. The standpipe had an inside diameter of 0.25 in. The water in the bath surrounding the specimen was 5 inches above the laboratory counter top and the water level in the standpipe fell from a height of 20 inches to 10 inches above the counter top in 38 hours and 12 minutes. Compute the hydraulic conductivity in ft/s. [5 points]