10 free REM practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
REM Practice Test 1Tutor mode
Question 1 of 10
Resource Conservation and Recovery Act (RCRA)
A gray-iron foundry generates a sludge from the wet scrubber on its cupola. The sludge is not a listed waste but fails the TCLP for lead. A secondary smelter offers to take the sludge and reclaim its lead. Under the federal definition of solid waste, how is the sludge classified when it is sent for reclamation?