To which department did you report the dumping of muck privately to Miluo Chuanshan?

You can report to the environmental monitoring brigade of the local environmental protection bureau or call the local mayor's hotline.

According to the relevant regulations, if municipal solid waste is dumped, scattered or piled up at will, the competent department of construction (environmental sanitation) of the people's government of the municipality directly under the central government, city or county shall order it to stop the illegal act and make corrections within a time limit.