Monitoring of Inorganic Comtaminants Associated with Irrigation Drainage inStillwater National Wildflife Refuge and Carson Lake, West-Central Nevada, 1994-96

摘要

In 1994, the U.S. Geological Survey and the U.S. Fish and Wildlife Serviceinitiated a 3-year drain-water-and wetland-monitoring program in Lahontan Valley, Nevada, as part of the National Irrigation Water Quality Program of the U.S. Department of the Interior. The purpose of the monitoring was to (1) develop a long-term hydrologic and biologic data base, (2) provide a baseline to evaluate the effects of Federal activities on water quality, wetland quality, and biota in the area, and (3) identify progress toward remediation of contaminant concerns in Lahontan Valley wetlands. Specific data collected included drain-water quantity and quality; trace-element concentrations in water sediment, and biological samples from wetlands; aquatic-invertebrate and fish diversity and relative abundance in wetlands; fish condition; bird use of wetlands; acreage of major wetland habitat types; and toxicity of water to test organisms.