At a grade 4 wastewater treatment facility, what are the required grades for the chief operator and the assistant chief?

In a grade 4 wastewater treatment facility, the certification requirements for operators are designed to ensure that individuals overseeing the facility possess the necessary knowledge and experience to maintain complex treatment systems effectively. The chief operator must hold a Grade 4 certification, which reflects the high level of operational knowledge needed to manage advanced treatment processes, troubleshoot issues, and ensure compliance with regulatory standards.

The assistant chief, on the other hand, is required to have at least a Grade 3 certification. This requirement ensures that the assistant is well-versed in operational protocols and can effectively support the chief operator while also being capable of taking charge when needed.

This hierarchical grading system is crucial for promoting safe, efficient, and compliant wastewater treatment operations, especially in a facility handling more advanced processes associated with grade 4 treatment systems. The other options do not reflect the established requirements for chief and assistant chief operators in such a facility, as they either feature lower certifications or do not align with the regulatory standards set forth for management of grade 4 operations.