Note: The U.S. Geological Survey (USGS) reports
these data, which were collected by various groups for World Water
Monitoring Day 2006 in Virginia. The Water Environment Federation (WEF),
in coordinating World Water Monitoring Day, receives the data from
those who collected it. After processing the data, WEF provides the
data to the USGS for posting on this web page. When such
water-quality data are collected, reported, and processed, errors
can be introduced such that reported values do not represent the
quality of the water at the time the water was collected. Because
the data reported for World Water Monitoring Day 2006 in Virginia
are not collected by the USGS, the data have not been verified or
evaluated by USGS quality assurance procedures. Thus, individual
users are responsible for determining if any reported values might
be incorrect.
A brief discussion provides general guidelines to
assist users who might not be fully knowledgeable of water quality
in this determination.
