What is considered the most forceful compliance procedure for a POTW?

Revoking permission to discharge is considered the most forceful compliance procedure for a Publicly Owned Treatment Works (POTW). This action directly impacts the ability of an entity to legally discharge wastewater into the treatment facility, which could have significant operational and financial consequences for that entity. Such a measure demonstrates a strict enforcement of regulations and signifies that a serious violation has occurred. By removing the capability to discharge, it emphasizes the regulatory authority's commitment to maintaining water quality standards and protecting public health.

Other compliance procedures, while important, do not carry the same weight or immediate impact. Issuing fines can serve as a deterrent but may not be enough to ensure compliance or significantly impact behavior. Providing additional training can help improve practices but relies on the willingness of the entity to implement changes. Conducting surprise inspections can be effective in monitoring compliance, but they do not have the immediate consequence of revoking discharge permission, which represents a decisive action taken in response to serious or repeated violations.