ABSTRACT
When an environmental scientist, biologist, or other technical specialist is planning a study that involves sampling, it is important, before initiating the study, to determine the objectives of sampling. One important consideration is to determine whether sampling will be accomplished at a single point or at isolated points. Additionally, frequency of sampling must be determined. That is, will sampling be accomplished at hourly, daily, weekly, monthly, or even longer intervals? Whatever sampling frequency is chosen, the entire process will probably continue over a protracted period.
