Which term best describes an operational violation due to completely intentional actions taken by the operator?

The term that best describes an operational violation resulting from completely intentional actions taken by the operator is "willful." This term indicates a deliberate disregard for regulations, standards, or procedures that govern wastewater treatment operations. When operators engage in willful violations, they consciously choose to act in a manner that is contrary to established laws or operational guidelines. This behavior can stem from various motivations, such as achieving a specific outcome or saving time or resources, but it ultimately reflects an intentional choice rather than a mistake or oversight.

In contrast, other terms do not capture this deliberate intent as effectively. "Accidental" refers to unintentional actions that lead to violations, while "negligent" implies a lack of proper care or attention, causing harm or violation, although not necessarily deliberate. "Knowing" suggests awareness of the violation but does not emphasize the intentional nature of the actions as clearly as "willful."