There are 275 RV dump sites located throughout Montana. Some of the sites are free to use, and others are free if products are purchased, you stay at the site, etc. It is advisable to contact the facility ahead of time to be aware of their current use policy.
Montana law regulates the storage and disposal of waste materials from recreational vehicles.
The law reads: "Liquid wastes from sinks, showers, toilets or baths are not allowed to accumulate on the ground surface. Such waste must be discharged into the sewage system serving the trailer court or campground or into an alternate system approved by the department and local health authority. "
Waste water (kitchen waste water) must be held in a watertight and sanitary container. The waste water can be dumped only in a designated waste water sump, a flush toilet or a trailer holding tank dump station. Pit toilets and sealed vault toilets are not approved dump sites.
Kitchen waste water must not be drained onto ground or into an open container.
This law is being enforced and penalties are being levied.
