Included in this on-line water quality primer is information about
the principle types of water quality problems impacting our
and streams, as well as in-depth descriptions of the water
quality parameters used by Water on the Web. Use the navigation
bar located on the top left side of each page, or use the links
provided at the bottom of each page to move forward or backward
in the primer.
What is the number one impairment to US streams and rivers?
(for the answer, roll your cursor over the image,
for more information,