Which of the following is NOT a method for remedying environmental violations?

The option regarding issuing formal apologies is not typically recognized as a method for remedying environmental violations. While issuing an apology may demonstrate a level of accountability or acknowledgment of a mistake, it does not directly address the environmental harm caused or the legal requirements that must be met to rectify the violation.

In contrast, the other options directly relate to methods that can address and potentially rectify environmental violations. Complying with the law ensures that organizations are following regulatory guidelines to prevent future violations. Imposing cash penalties serves as a deterrent and also holds violators accountable for their actions, often contributing to funds that can support environmental restoration efforts. Carrying out a supplemental project involves taking additional steps to enhance or restore the environment beyond what is required by law, which can lead to tangible benefits in mitigating the impact of the violation.