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 540 service locations across all 50 states, nine Canadian provinces, Puerto Rico and Mexico. Those service locations include service centers, satellite locations, branches, active hazardous waste management properties and oil processing facilities. Some of our properties offer multiple capabilities. The following sets forth certain information as of December 31, 2021 regarding our properties.
Service Centers, Satellite Locations and Branches
We have approximately 406 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 and our containerized waste and parts cleaning services for our Environmental Services business as well as oil collection and product sales locations for our Safety-Kleen Sustainability Solutions 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 2021 of 85.0%. 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
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and utilization for each incinerator for the year ended December 31, 2021:
# of Incinerators Practical Capacity (Tons) Utilization Rate
Year Ended
December 31, 2021
Arkansas 3 145,072 94.5%
Nebraska 1 58,808 79.1%
Utah 1 66,815 78.0%
Texas 3 165,500 82.7%
Ontario, Canada 1 125,526 83.4%
9 561,721 85.0%
Our incinerators offer a wide range of technological capabilities to customers through this network. In the United States, we provide incineration through one fluidized bed thermal oxidation unit and three solids and liquids-capable incinerator facilities and we operate one active hazardous waste liquid injection incinerator in Canada.
Commercial and Non-Commercial Landfills. In the United States and Canada, we operate seven commercial landfills with approximately 23.6 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. We are in the process of closing two commercial landfills, Altair and Westmorland. These landfills are excluded from the landfill counts above. See "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 ten facilities, of which eight are owned and two are leased, that offer a range of wastewater treatment technologies and services. One of these locations was acquired as part of the HydroChemPSC acquisition. 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 26 TSDFs, of which 24 are owned and two 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 75 oil terminals, of which 46 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 226.0 million gallons of used oil processed annually, we were able to return 196.1 million gallons of new re-refined oil, lubricants and byproducts back into the marketplace in 2021.
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.
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