Carbon Sewer is a locally owned and operated full-service provider for underground septic tank systems and portable toilet servicing. Septic services range from installation and design to maintenance, pumping, repair, and system removal. The customer base includes residential homeowners, local businesses, construction sites, and area special events. Sewer operates within the area and includes the communities of Red Lodge, Luther, Roscoe, Belfry, Bridger, Fromberg, Roberts, and Boyd, Montana .