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Waste Minimization

Marathon facilities develop programs for waste minimization, recycling, reuse and reclamation based on their specific needs, with business units monitoring their own waste disposal activities. Due to these practices, it has been a challenge for Marathon to develop a Company-wide approach to minimizing wastes. We plan to improve data collection and analysis to assist in waste reduction and recycling strategies.

Downstream hazardous waste disposal has declined in recent years, and we expect this trend to continue as additional recycling options become available. In 2010, refining continued a multi-year project to further manage the largest hazardous waste streams at each plant by reclamation, energy recovery or recycling. The Detroit, Michigan, refinery reclaimed 1,754 tons of hazardous waste out of 1,990 tons and the Catlettsburg, Kentucky, refinery reclaimed 5,200 tons out of a total of 6,050 tons generated.

Upstream U.S. and Downstream select and periodically re-evaluate waste management vendors to reduce liability exposure and costs, and to improve management of waste and recyclable materials. Through this program, vendors with the highest identified risk undergo an onsite audit, usually conducted by a third party. Upstream non-U.S. locations manage waste according to local regulations and/or company requirements.

Cooperative Waste Reduction Programs

In Ohio, Marathon is a charter member of the By-Product Synergy (BPS) Network of the U.S. Business on Sustainable Development, founded in 2010. In our first year of participation, a BPS member company reused 25 tons of food waste from our Findlay Office Complex cafeteria to make commercial grade garden compost.

Another BPS project uses spent water softening lime from our Canton refinery to neutralize acid mine runoff. We provide spent lime to the BPS member company free of charge. By diverting non-hazardous waste from the landfill, this project reduces Marathon's disposal costs as well as the mine's costs to purchase lime. BPS members are evaluating additional projects, including one to produce methane from biological sludge from Marathon's wastewater treatment plant operations.