Nothing in 310 CMR 19.000 shall be construed to limit the Department from determining on a facility or site specific basis that additional design or operation and maintenance components are required where conditions warrant such additional design or operation and maintenance measures to protect public health, safety and the environment or to mitigate potential adverse impacts. When deemed necessary by the Department, in response to conditions that have developed at a facility, the Department may require a facility to monitor air and/or surface or ground water to determine if the conditions present a threat to public health, safety or the environment.
310 CMR, § 19.203