Company: CLH
Filing Date: 2025-02-19
Form Type: 10-K
Source: 0000822818-25-000007
Chunk: 19

Company: CLEAN HARBORS INC
Filing Date: 2025-02-19
Form: 10-K
Item: Item 1
Chunk 19
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 potential to be recycled, re-refined and reused. Our plants have re-refined more than 4.7 billion gallons of used oil, avoiding improper disposal of these gallons and allowing such oils to have a new life as high-quality recycled lubricants. Our Sustainability award-winning KLEEN+ family of re-refined base oil products is designed to help companies manage their oil needs in a more sustainable way with less reliance on virgin crude oil production. With consumers and investors focus on environmental and socially responsible practices, including less reliance on foreign oil products, we expect that the use of KLEEN+ re-refined oil products will contribute to our customers’ ESG efforts.

We continuously strive to improve efficiency and sustainability within our operations through continuous improvements and strategic initiatives. Our assets present significant opportunities to implement environmentally sustainable business practices. Our Asset Refurbishment Program is a comprehensive effort to rebuild key vehicles to “like new” quality while reusing or recycling as much of the original materials as possible. Annually, we aim to replace over 200 older specialized vehicles, such as vacuum trucks, industrial air movers and waste oil trucks, with state-of-the-art refurbished or internally manufactured assets using repurposed parts whenever possible. Employing our field repair and refurbishment program for our parts washers enabled us to repair over 7,000 parts washers in the field in 2024, saving transportation to our refurbishment facility. Parts washers requiring more extensive repairs were returned to our facility, where we reconditioned the majority of 

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these machines and salvaged the components from any machines that were beyond reconditioning. These operations at our facility refurbished over 9,000 machines in 2024 and avoided disposal of approximately 430 tons of metals and plastics.

Environmental Commitment

One of the Company’s sustainability goals is to contribute to a cleaner environment by maximizing resource conservation across our organization. We continue to evaluate and incorporate solar energy as a viable option for our facilities where possible and have built solar arrays at select sites for their ongoing energy needs. We also continuously seek to better understand the contribution of renewable energies to our collective energy consumption. We estimate that about 20% of our North American electricity consumption is generated by renewable energy sources, including hydroelectric, biomass, wind, solar and geothermal energy. We also work to conserve, recycle and reuse the water necessary for our operations, while providing a range of liquid waste and wastewater treatment alternatives that meet the requirements of projects we manage. Water efficiency, recirculation and reuse are critical to