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201 Mann Rd

Plentywood, MT 59254

406.765.7117 | 406.765.2609 fax

Business Hours: Tues- Fri 11:00 am to 4:00 pm, Sat: 8:00 am to 4:00 pm, CLOSED Sun, Mon, and Holidays

The Landfill is subject to close due to certain weather conditions (e.g. rain, snow).

Sheridan County Solid Waste District

100 W Laurel Ave

Plentywood, MT 59254

Sheridan County Landfill

Century Paving has begun work on the road to the Landfill. The paving is expected to last for the next month. Landfill hours remain the same, but delays may occur. Please plan accordingly.



Landfill Fees (Prices subject to change by the Solid Waste Board):


Delinquent Accounts Policy

Residential households and commercial businesses are assessed landfill fees for Group II wastes based on the number of units.

  • Household: 2 UNITS = $115.00

  • Commercial Businesses: 1 UNIT = $57.50 (# of units varies based on the amount of waste produced and the type of business)


Demolition Waste (Group IV Waste): $20.00/yd.


Mattresses: $20.00/ea.


Tires - Passenger: $5.00/tire, Truck: $15.00/tire, Tractor: $70.00/tire, Heavy Equipment: $200.00/tire


Contaminated Soils $30.00/ton + Sampling Expenses


Asphalt and Concrete $10.00/ton or $20.00/cu. yd.


Agricultural Grain and Debris $50.00/ton


There is currently no charge for the following waste: Metal Waste, Compost, Untreated Wood, Brush, Trees and Limbs.

NOTE: These wastes need to be separated and placed in appropriate areas of the landfill. Landfill personnel will direct you to the appropriate areas. For ease of unloading, please have these wastes separated in your load before arrival at the landfill.

All fees are subject to change by the Solid Waste Board.

All accounts are subject to a $50 late fee.


Class II Landfills Acceptable Waste


The Sheridan County Landfill is licensed as a Class II facility and landfarm. The facility can accept Group II, Group III and Group IV waste and contaminated soils.


Group II Waste: Group II wastes include decomposable wastes and mixed solid wastes containing decomposable material, but excludes regulated hazardous wastes.


Examples (but are not limited to the following):

(A) Municipal and household solid wastes such as garbage and putrescible (spoilable) organic materials, paper, cardboard, cloth, glass, metal, plastics, street sweepings, yard and garden wastes, digested sewage treatment sludges, water treatment sludges, ashes, dead animals, offal, discarded appliances, and hospital and medical facility wastes provided that infectious wastes have been rendered non-infectious to prevent the danger of disease.

(B) Commercial and industrial solid wastes such as packaging materials or solid industrial process wastes that are chemically or biologically decomposable, contaminated soils, crop residues, manure, chemical fertilizers and emptied pesticide containers than have been triple rinsed or processed by methods approved by the Department of Environmental Quality.


Group III Waste: Group III wastes include wood waste and non-water soluble solids. These wastes are characterized by their general inert (not chemically reactive) nature and low potential for adverse environmental impacts.


Examples (but are not limited to the following):

(A) Inert (not chemically reactive) solid waste such as unpainted brick, dirt, rock and concrete.

(B) Clean, untreated, unglued wood materials, brush, unpainted or untreated lumber and vehicle tires.

(C) Industrial mineral wastes which are essentially inert (not chemically reactive) and non-water soluble and do not contain hazardous waste constituents.


Group IV Waste: Group IV wastes include construction and demolition wastes and asphalt. No regulated hazardous wastes are allowed in this classification.


Contaminated Soils: “Contaminated soil” means soil, rock, dirt or earth that has been made impure by contact, commingling or consolidation with organic compounds such as petroleum hydrocarbons. This does not include soils contaminated solely by inorganic metals that meet the definition of hazardous waste.


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