What is required before constructing a subsurface sewage disposal system in Tennessee?

Before constructing a subsurface sewage disposal system in Tennessee, obtaining a valid construction permit issued by the Commissioner is a critical requirement. This permit ensures that all standards and regulations established for safe and effective sewage disposal are met, ultimately protecting public health and the environment.

The permit process involves detailed plans review and often includes site evaluations to assess soil suitability and other environmental factors. It's a fundamental component of maintaining regulatory oversight to ensure that installations are done correctly and safely.

In comparison, while a verbal agreement with the local health department may suggest informal communication regarding the project, it does not hold the same legal weight or thoroughness as a formal permit. Similarly, while a survey by a local engineer may provide valuable information regarding land assessment, it is not a prerequisite for construction, nor does it guarantee compliance with state regulations. Lastly, applying for a state-level grant is unrelated to the construction permitting process and doesn't directly impact the ability to construct a sewage disposal system. Therefore, the requirement for a valid construction permit ensures adherence to the necessary regulatory framework, making it the correct choice.