One of the common tasks assigned to any environmental engineer is the application of statistical methods to their science. The engineer should be aware of the procedures that concern the natural environment with and without human interaction. Statistics helps engineers, in their study of the present state of an environment, to produce documentation using the present state to address unknown changes in the future. Meanwhile, statistics assists them to regularly monitor the environment in the hope of detecting those changes earlier. In addition, statistics come to use when a targeted study is needed to depict the likely effect of changes, either planned or not. This book provides a clear means to get familiar with statistics, statistical methods, and the application of statistics to the environmental sciences so that engineers have command of a necessary tool for good decision-making.