HAMPDEN – Pine Tree Landfill has filed an application to accept 3,500 tons of waste annually from a New Hampshire waste handling company.

United Oil Recovery of Newington, N.H., seeks to dispose of oily debris, which includes dirt and sludge contaminated with oil, as well as absorbent material used to soak up roadside oil spills, Tom Gilbert, environmental compliance manager for Pine Tree, said Thursday.

The landfill already is permitted to accept such waste but filed a new application with the state Department of Environmental Protection because United Oil Recovery wants to test the waste less frequently, Gilbert said. The company is confident that it is familiar enough with the waste to warrant fewer tests, he said.

Pine Tree’s existing permit requires the waste to be tested every 250 tons, he said.

United Oil Recovery seeks to test the waste four times per year for metals and once a year for certain organics, Mike Parker of the DEP said Thursday. Though the company also handles hazardous materials, the waste it seeks to dispose of in Maine is not hazardous, he said.

The commercial landfill accepts waste from in and out of state but is not permitted to accept hazardous waste. In 2005, Pine Tree took in 592,200 tons of waste.

The DEP will issue a decision on the application within three months, Parker said.