Frequent Questions

How much will the Hazardous Waste Combustion Emission Standards rule cost?

For all three source categories to meet the final standards, our best estimate of total annualized costs ranges from $50 to $63 million, depending upon level of price pass-through and engineering design level. 

Cement kilns and private on-site incinerators make up about 76 percent of aggregate national costs under the final standards. For cement kilns, this is due primarily to the high costs per system. For private on-site incinerators, the high costs are primarily due to the large number of combustion systems. Total costs are less for commercial incinerators (about 10 percent of the total) because of lower costs per system relative to cement kilns and due to the limited number of commercial units relative to on-site incinerators. Lightweight aggregate kilns represent about 5 to 6 percent of the total costs, due primarily to the limited number of units. Government on-site units make up the remainder. 

The costs per ton of hazardous waste burned are projected to increase from 31 to 41 percent for cement kilns. The per ton burn cost increase for lightweight aggregate kilns averages approximately 35 percent. This increase for commercial incinerators is estimated at 20 percent of baseline burn costs.

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