The primary culprit in local sorting disruptions remains thin-film plastic. Bags, bubble wrap, and plastic film frequently tangle in mechanical sorters, necessitating manual intervention that halts the entire facility. Beyond the mechanical strain, hazardous materials like paint, chemicals, and electronics pose direct safety threats, requiring separate disposal channels rather than the standard curbside bin.

Glass also remains a major point of friction. Because it shatters during collection, it contaminates paper and cardboard loads, often rendering them unusable. Dori John emphasizes that residents should redirect these items to designated drop-off stations. Similarly, multi-layered packaging—such as plastic-coated cardboard—is frequently misidentified by residents as recyclable, yet these complex materials cannot be processed by standard equipment and typically end up in landfills.

While minor food residue in containers is generally acceptable, significant contamination degrades the quality of the entire batch. By adhering to these sorting standards, Roseburg households help maintain a cleaner material stream, which is essential for the economic viability of local recycling efforts. Proper sorting ensures that recovered resources remain clean enough for industrial reuse, ultimately reducing the region's reliance on virgin raw materials.