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This pilot leverages National Water Quality Assessment (NAWQA) stream health data collected in Oregon’s Willamette River Valley and Washington’s Puget Sound to estimate the economic value of water quality in this region of the Pacific Northwest. The USGS NAWQA Program is currently conducting a regional assessment of water-quality, habitat stressors, and biological communities (including salmon) in the Willamette River Valley and Puget Sound, with the overall goal of evaluating the relative importance of factors affecting stream health throughout the region. Sampling will take place across more than eighty stream sites in the region to analyze gradients of human disturbance, characterize chemical stressors,...
Categories: Project; Tags: Front Page, Pilot Study
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The Delaware River pilot study will integrate biophysical information on freshwater mussels into a stated preference nonmarket valuation household survey to estimate the ecosystem service benefits of clean water supply to downstream users. The Delaware River basin is home to a healthy and substantial freshwater mussel population which has been characterized on a nearly continuous basis for the entire river. It is also unique in that a decision support system (known as the REFDSS) has been developed for the basin as part of the Department of the Interior’s WaterSMART initiative and the USGS’s National Water Census to facilitate management of key ecological resources in the river. Because of the well-established...
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Floodplains provide numerous benefits to people by reducing downstream flooding and trapping sediments and nutrients. Floodplain services can be especially important for downstream estuaries such as the Chesapeake Bay. Issue: Floodplains provide numerous benefits to people by reducing downstream flooding and trapping sediments and nutrients. Information on the capacity of floodplains to retain sediment and nutrients is important to understanding the value that floodplain areas provide by reducing the transport of pollutants to downstream rivers and estuaries such as the Chesapeake Bay. Floodplains can improve downstream water quality by intercepting upland sources of sediment and by trapping sediment during...