ENVE-205 Environmental Engineering Hydrology


CHAPTER IX: Groundwater Hydrology

In this chapter, groundwater related concepts such as porosity and permeability will be examined. Measurement of permeability using Constant Head and Falling Head permeameters will be discussed. Aquifers and springs will be introduced. Movement of groundwater will be examined. Flow in confined and unconfined aquifers will be discussed. Well systems and their yields from confined and unconfined aquifers will be presented.

Study Plan:

        Learning the occurrence of groundwater from precipitation. Learning the concepts of porosity and permeability. Deriving the permeability formulas for constant head and falling head permeameters. (Section 9.1, 9.1.1, 9.1.2).

        Learning about the aquifers and springs. (Section 9.2).

        Deriving the flow rate formulations for groundwater movement in terms of aquifer parameters of width, depth, permeability, and energy gradient slope. Defining the term of transmissivity in aquifers. (Sections 9.3). Example problem 9.1.

        Construction of energy balance using Bernoulli equation for confined and unconfined aquifers (Section 9.4, 9.5). Example problem 9.2.

        Learning about the well systems. Deriving formulations for the yields of wells in confined and unconfined aquifers (Sections 9.7, 9.7.1, 9.7.2). Example problems 9.3 and 9.4.

        Homework problems 1, 2, 3, 4, 5, 7, 8, 9, 12.