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How deep must the seasonal high ground water elevation be below the proposed absorption field for a sewage management system to be permitted?

  1. 1 foot minimum

  2. 2 feet minimum

  3. 3 feet minimum

  4. 4 feet minimum

The correct answer is: 2 feet minimum

For a sewage management system to be permitted, it is essential that the seasonal high ground water elevation is maintained at least 2 feet below the proposed absorption field. This requirement is crucial because it ensures that the effluent from the septic system can infiltrate into the soil adequately without being hindered by high groundwater levels, which could cause saturation and lead to system failure or surface discharge of untreated sewage. The 2-foot minimum separation distance provides a safeguard, allowing for effective treatment of sewage within the soil before it reaches the groundwater. This distance also helps prevent potential contamination of the groundwater supply, maintaining public health and environmental safety. When understanding this concept, it's also important to recognize that if the distance were shorter—such as 1 foot—it could lead to insufficient treatment and higher risks of effluent saturation. Therefore, the 2-foot requirement is a regulatory standard that promotes effective septic system performance and environmental protection.