SALT LAKE CITY — A bill that would authorize a study by state hazardous waste regulators passed a committee Tuesday and would entail changing the structure of how disposal fees for the waste are charged.

HB348, sponsored by Rep. Ronda Menlove, R-Garland, would not take effect until June 30, 2014, and give the state Division of Solid and Hazardous Waste time to come up with a standardized fee schedule for disposal.

Currently two companies affected by the proposed changes — EnergySolutions and Clean Harbors — pay a per-tonnage rate for disposal of hazardous waste.

Amanda Smith, executive director of the state Department of Environmental Quality, said the flat rate will help bring some dependability to the revenues generated by disposal fees, which ebb and change due to economic conditions.

A flat rate, rather than per-ton assessments, would also be more equitable to the two companies involved.

"It takes some volatility out of the budget," Menlove told members of the Senate Natural Resources committee. "And it gives predictability for industry."

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