Item 2. Properties
ITEM 2. PROPERTIES
Our principal executive offices are in Norwell, Massachusetts. We own our primary executive office building in Massachusetts which occupies 104,000 square feet. We also currently lease 52,400 square feet of additional office space in Norwell, Massachusetts under arrangements which may not expire until 2042. We have regional administrative offices in Texas and South Carolina, as well as Alberta, Canada and Hyderabad, India. Our properties are sufficient and suitable for our current needs.
We have a network of more than 485 service locations across 49 states, eight Canadian provinces, Puerto Rico and Mexico. Those service locations include service centers, satellite locations, branches, active hazardous waste management properties, lodging facilities and oil processing facilities. Some of our properties offer multiple capabilities. The following sets forth certain information as of December 31, 2020 regarding our properties.
Service Centers, Satellite Locations and Branches
We have approximately 353 service centers, satellite locations and branches throughout the United States and Canada which serve as principal sales and service centers from which we provide our environmental and industrial services for the Environmental Services business and our parts cleaning, containerized waste and oil collection services for our Safety-Kleen business.
Active Hazardous Waste Management Properties
Incinerator Facilities. We own and operate five incinerator facilities that have a total of nine incinerators with 561,721 tons of total practical capacity and an overall average utilization rate for 2020 of 84.1%. Our practical capacity is not based on a theoretical 24-hour, seven-day operation, but rather is determined as the production level at which our incinerators can operate with an acceptable degree of efficiency, taking into consideration factors such as longer term customer demand, permanent staffing levels, operating shifts, holidays, scheduled maintenance and mix of product. Capacity utilization is calculated by dividing actual production tons by practical capacity at each incinerator. The following table summarizes the practical capacity and utilization for each incinerator for the year ended December 31, 2020:
# of Incinerators Practical Capacity (Tons) Utilization Rate
Year Ended
December 31, 2020
Arkansas 3 145,072 90.9 %
Nebraska 1 58,808 82.9 %
Utah 1 66,815 81.7 %
Texas 3 165,500 79.5 %
Ontario, Canada 1 125,526 84.2 %
9 561,721 84.1 %
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Our incinerators offer a wide range of technological capabilities to customers through this network. We provide incineration in the United States through one fluidized bed thermal oxidation unit and three solids and liquids-capable incinerator facilities and we operate in Canada one active hazardous waste liquid injection incinerator.
Commercial and Non-Commercial Landfills. In the United States and Canada, we now operate seven commercial landfills with approximately 24.5 million cubic yards of remaining highly probable airspace. Six of our commercial landfills are designed and permitted for the disposal of hazardous waste and one landfill is operated for nonhazardous industrial waste disposal and, to a lesser extent, municipal solid waste. In addition to our commercial landfills, we also own and operate two non-commercial landfills that only accept waste from our on-site incinerators. During 2020, we took actions to begin the closure of our Altair and Westmorland commercial landfills. Altair, a nonhazardous landfill, reached permitted capacity during the year. The Company decided to close the Westmorland landfill, a hazardous landfill, due to the cost of obtaining and maintaining permits and operating the landfill. These landfills are excluded from the landfill counts above. See "Landfill Final Closure and Post-Closure Liabilities" within "Critical Accounting Policies and Estimates" included in Item 7 of this report and "Landfill Accounting" within Note 2, "Significant Accounting Policies," to our consolidated financial statements included in Item 8 of this report for additional information on our commercial and non-commercial landfills.
Wastewater Treatment Facilities. We operate a total of nine facilities, of which eight are owned and one is leased, that offer a range of wastewater treatment technologies and services. Wastewater treatment consists primarily of three types of services: hazardous wastewater treatment, sludge de-watering or drying and non-hazardous wastewater treatment.
Treatment, Storage and Disposal Facilities. We operate 27 TSDFs, of which 24 are owned and three are leased, in the United States and Canada. Our TSDFs facilitate the movement of materials among our network of service centers and treatment and disposal facilities. Transportation may be accomplished by truck, rail, barge or a combination of modes, with our own assets or in conjunction with third-party transporters. Specially designed containment systems, vehicles and other equipment permitted for waste transport, together with drivers trained in transportation and waste handling procedures, provide for the movement of customer waste streams.
Other Hazardous Waste Management Properties. We own two facilities specializing in solvent recovery management. We also own one autoclave facility specifically designed to treat medical waste.
Oil Processing, Blending and Packaging Facilities
Oil Terminals. We operate a total of 69 oil terminals, of which 40 are owned and 29 are leased, which collect or process used oil prior to delivery to our re-refineries or distribution as recycled fuel oil.
Oil Recycling and Re-refining Facilities. We own seven oil re-refineries, six in the United States and one in Canada. With nearly 200.0 million gallons of used oil processed annually, we were able to return 166 million gallons of new re-refined oil, lubricants and byproducts back into the marketplace in 2020.
Oil Packaging and Blending Facilities. We operate a total of five oil packaging and blending facilities, of which three are owned and two are leased, which are used for blending and packaging oil from our branches.
ITEM 3. LEGAL PROCEEDINGS
See Note 17, "Commitments and Contingencies," to our consolidated financial statements included in Item 8 of this report for a description of legal proceedings.
ITEM 4. MINE SAFETY DISCLOSURES
Not applicable.
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PART II