California Wastewater Treatment Operator Practice Exam

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Study for the California Wastewater Treatment Operator Exam. Use flashcards and multiple-choice questions with detailed explanations to boost your readiness. Prepare with confidence and aim for success!

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What are the main sources of domestic sewage in the collection system?

  1. household and commercial establishments

  2. industrial plants

  3. agricultural runoff

  4. stormwater drains

The correct answer is: household and commercial establishments

Possible explanation Domestic sewage in the collection system primarily comes from household and commercial establishments, as these are the main sources of human waste and used water. While industrial plants may also contribute to domestic sewage, they typically have their own separate waste management systems. Agricultural runoff and stormwater drains may contain contaminated water, but they are not considered primary sources of domestic sewage in the collection system.

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