Which criteria help determine significant noncompliance?

Significant noncompliance is primarily determined by conditions that pose a serious risk to public health or the environment. The correct criteria involve situations such as imminent endangerment, which indicates that the discharges from a facility are posing immediate threats that could have severe consequences. Additionally, the failure to report such incidents reinforces the significance of the noncompliance, as it shows a lack of transparency and accountability, which are essential in regulatory frameworks.

Incomplete reports and polite communication, while potentially indicative of some level of noncompliance, do not reflect the severity needed to be classified as significant. Meeting quotas, though important for operational effectiveness, does not directly impact environmental safety and does not indicate immediate dangers. Routine maintenance failures may suggest areas needing improvement but are generally not classified as significant noncompliance unless they lead to serious operational failures that endanger public health or the environment.