31.   The origins and workings of this microbe are not well understood, but many scientists believe its lethal proliferation is directly related to uncontrolled animal wastes.

32.   The rainwater picks up contaminants, everything from oily residue on city streets to lawn fertilizer to animal waste, on its way to the ocean.

33.   The report said that animal waste from factory farms is an emerging national problem and that federal regulations fail to adequately protect water quality from animal waste.

34.   The parasite is commonly found in lakes and rivers, especially if the water has been contaminated with sewage or animal wastes.

35.   The push for research money comes as pressure mounts in Washington to set federal pollution standards for animal waste.

36.   The student eventually developed a fuel cell that runs on animal waste.

37.   Their size prevents the concentration of animal wastes, inevitable in factory farming, that turns valuable manure into a pollutant.

38.   They are Iowa farms, which send fertilizer and animal wastes into the groundwater and into the river.

39.   They were allowed to dig huge pits for animal waste, without regard to the water table or the health and sensibilities of neighbors.

40.   Waco has regularly found a parasite from animal waste in samples from the lake, the report says.