At the successful completion of this lesson, the learner will be able to

1. List and identify the three groups of organisms which cause waterborne disease
2. List and describe the common methods of disinfection
3. Identify the reasons why chlorine is used as a disinfectant in the United States
4. Describe the use of indicator organisms in determining microbiological water quality
5. List common waterborne diseases
6. List and describe concerns with using chlorine as a disinfectant