Texas Commission on Environmental Quality (TCEQ). Class C Water License Exam

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Prepare for the Texas Commission on Environmental Quality (TCEQ) Class C Water License Exam. Utilize flashcards, multiple choice questions, and in-depth explanations. Equip yourself with the skills to succeed!

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What must all public water supply wells include according to state requirements?

A raised concrete sealing block
A filtration system
A chlorine injection system
A UV disinfection unit

The correct answer is: A raised concrete sealing block

The inclusion of a raised concrete sealing block at public water supply wells is a critical requirement based on state regulations aimed at protecting groundwater resources. This feature plays an essential role in preventing surface contaminants from entering the well. By elevating the wellhead and providing a concrete seal, it creates a physical barrier that minimizes the risk of pollution from surrounding areas, ensuring that the water extracted remains clean and safe for public consumption. While filtration systems, chlorine injection systems, and UV disinfection units are important components in treating and ensuring the safety of drinking water, the foundational aspect of well design and construction focuses on preventing contaminants from getting into the well from the very beginning. Thus, the raised concrete sealing block is a vital element mandated for safeguarding public water supply wells against environmental risks.