We are dedicated to ensuring the safety of
our community's drinking water. Through testing,
monitoring, and reporting, we closely follow
the quality of our drinking water and report
our findings to the state regularly.

Download a PDF of recent water quality reports
below.
Water Quality Reports (Issued in May
of the following year) 2007
2006
2005
2004
2003
2002
Presentations
American
Water Works Association (AWWA) Presentation-
Presented by Doug Rovang and Donn Richardson
at the Minnesota Section AWWA Conference in
Duluth, MN September 2007
Storm Water
The city of Rochester's storm water management
program is an important part of ensuring the
safety and health of the Rochester community.
www.rochesterstormwater.com
Storm
Water FAQ's
Wellhead Protection
RPU's Wellhead Protection Report (PDF format)
-
Part I
- Part
II (released 12/06)
Water Supply
Does our municipal water supply travel underground
to Rochester from the Great Lakes? Does
it come from an underground spring linked
to the Mississippi River?

No, it comes from a source much closer to
home! As the map shows, your drinking water
comes from a relatively small underground
basin underneath and surrounding the city
of Rochester. It is replenished by rainfall
and is subject to, or affected by, contaminants
as it percolates from the surface to the
Prairie du Chien-Jordan aquifer, which is
400-600 feet below the surface.
Of the nearly 32 inches of rainfall we receive
each year, approximately six inches of rainfall
actually soaks into the ground and ultimately
reaches the aquifer below. The remainder
of the water evaporates, is taken up by
plants, or runs off the land and is carried
away by the Zumbro River. Rochester's annual
use of water is equivalent to one inch of
precipitation on the groundwater basin,
or approximately four billion gallons of
water each year. Rochester's water is a
mix of recent and ice age water. The recent
water was recharged within a twenty-mile
area around Rochester.
For more detailed information on national,
state and local water quality issues, EPA
United States Environmental Protection Agency,
Office of Water. http://www.epa.gov/ogwdw/
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