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lesson 1. Water and disease
lesson 2. The nature and sources of water
lesson 3. Drinking water standards
lesson 4. Chemistry and microbiology
lesson 5. Basic mathematics
lesson 6. Hydraulics
lesson 7, pt. 1. Municipal water treatment
lesson 8, pt. 2. Municipal water treatment
lesson 9, pt. 1. Individual water supplies
lesson 10, pt. 2. Individual water supplies
lesson 11. Plumbing and cross-connections.

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