Drinking water Technology, Eawag, developed a method by which hazard maps could be produced for geogenic toxic substances in groundwater. This provides an efficient way of determining which wells should be tested. Parameters for drinking water quality typically fall within three categories: Physical and chemical parameters include heavy metals, trace organic compounds, total suspended solids (TSS), and turbidity. Microbiological parameters include Coliform bacteria, "E. coli", and specific pathogenic species of bacteria (such as cholera-causing "Vibrio cholerae"), viruses, and protozoan parasites. Chemical parameters tend to pose more of a chronic health risk through buildup of heavy metals although some components like nitrates/nitrites and
Catastrophic crop insurance Catastrophic crop insurance Catastrophic crop insurance (CAT) is a component of the U.S. federal crop insurance program, originally authorized by the Federal Crop Insurance Reform Act of 1994 (P.L. 103- 354). CAT coverage compensates farmers for crop yield losses exceeding 50% of their average historical yield at a payment rate of 55% of the projected season average market price. CAT coverage requires that a farmer realize a yield loss of more than 50% and only makes payments on losses exceeding the 50% threshold. Producers pay no premium for CAT coverage, but except for cases of financial hardship must pay an