Which list includes wastes from nonspecific sources?

• A. K
• B. F
• C. P
• D. U

Answer: (B)

Wastes from nonspecific sources are grouped on the F-list. This category collects wastes that come from common industrial processes used across many different facilities, such as spent solvents and other similar streams that aren’t tied to one specific industry. Because the F-list targets these generic, widely generated wastes, it’s the best match for materials that could originate from a variety of sources rather than a single process. In contrast, the K-list covers wastes from particular industries or processes, and the P and U lists cover discarded commercial chemical products that are acutely toxic, which don’t describe broad, nonspecific origins.