2.61. The following MPN test results were obtained for three water samples. Determine the MPN/100 mL using (a) the Poisson distribu- tion [Eq. (2.90)], (b) the MPN tables given in Appendix G, and (c) the Thomas equation [Eq. (2.91)]. NUMBER OF POSITIVE TUBES SAMPLE SIZE, mL Sample A Sample B. Sample C 5n 0.1 0.01 1 4. 0.001 1 2. 0.0001 0. 1.

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hy…