From which type of facility would you expect to find pollutants like fats, oils, and grease, but not volatile organics?

The presence of fats, oils, and grease (FOG) is commonly associated with facilities that process or deal with organic materials, particularly food products. All three choices—food industry, meat packing plants, and dairies—handle products that are high in fat content, leading to significant amounts of FOG being generated as waste.

In the food industry, particularly where cooking and food preparation occur, the runoff often contains oils and greases from fried foods, baking processes, and food processing operations. Similarly, meat packing plants generate FOG as a result of animal processing, due to the high fat content in various meats. Dairies also produce FOG, as milk and dairy products inherently contain fats.

While all these facilities may lack significant amounts of volatile organics, which are typically found in chemical manufacturing or dry cleaning operations, they all consistently contribute FOG to wastewater, making them likely candidates for the pollutants specified in the question. Therefore, the selection of "All of the above" accurately reflects that all mentioned facilities can generate pollutants that include fats, oils, and grease but generally not volatile organics.