Just below the H. Neely Henry Dam on the Coosa River, Mr. Woods catches catfish to fry and eat. Like many lakes and rivers in Alabama, this spot has a fish consumption advisory, indicating that the fish may contain dangerous levels of mercury and other contaminants. The Alabama Department of Public Health suggests limiting or avoiding consumption of some fish species in certain locations--information found on the agency’s website--but there is no legal requirement to post signs for fishermen. Where does that leave Mr. Woods and others who depend on fishing for sustenance?