An Act amending the act of July 7, 1980 (P.L.380, No.97), known as the Solid Waste Management Act, in general provisions, further providing for definitions; in residual waste, further providing for disposal, processing and storage of residual waste and providing for exempt special wastes; and making an editorial change.

HB 665 amends Pennsylvania's Solid Waste Management Act to strengthen testing requirements for residual waste facilities. It requires facilities handling residual waste to test incoming waste and outgoing drainage water (leachate) for specific contaminants: water quality chemicals (chloride, bromide, sulfate, nitrate), hazardous characteristics (toxicity, corrosivity, ignitability), and naturally occurring radionuclides (uranium, radium, radon). Facilities must compare these test results quarterly and report them to the state environmental department and local municipalities. This directly affects waste processing and landfill operators managing residual waste, ensuring more comprehensive monitoring of potential environmental impacts.