Land within 100 feet of a perennial stream or an intermittent stream may not be disturbed by surface mining activities unless the Bureau specifically authorizes surface mining activities closer to or through such a stream. The Bureau may authorize the surface mining activities closer to or through a stream upon finding that: The activities will not cause or contribute to the violation of applicable State or federal water quality standards; The activities will not adversely affect the water quantity and quality or other environmental resources of the stream; and If there will be a temporary or permanent stream-channel diversion, the stream-channel diversion will comply with COMAR 26.20.21.04.