Fish Sampling During Ecological Survey
National Water Quality Program
The National Water Quality Program provides an understanding of water-quality conditions; whether conditions are getting better or worse over time; and how natural features and human activities affect those conditions.
Featured: Water-Quality at Pipestone National Monument
A new study takes an in-depth look at over 250 water-quality parameters and contaminants in quarry water, creek water, and waterfall mist.
Featured: Mapping Benthic Algae in River Channels
A new paper evaluates the feasibility of mapping benthic algae via remote sensing by using aerial photographs and satellite images to classify four levels of algal density along the Buffalo National River in Arkansas.