October 22, 2007--Study: Wastewater discharge changes male fish to female (Fort Morgan Times)

The South Platte River is 90 percent wastewater below the city of Denver 90 percent of the year, according to Colorado University Integrative Physiology Professor David Norris. “All rivers in the Western United States are wastewater dominated,” he said at Morgan Community College Thursday. “At least 50 percent of the time, at least 50 percent or more of the water flowing in those rivers is wastewater effluent. Most of our western rivers would not flow at all if we did not dump wastewater into them.” And although wastewater treatment plants don’t dump toxic water back into rivers and streams, the effluent contains chemicals that may have temporary or permanent effects on living organisms, including humans.


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