5.3. ERMUSR 09-11-2007/j
Elk River
Municipal Utilities
13069 Orono Parkway • P.O. Box 430
Elk River, MN 55330-0430
September 4, 2007
To: Elk River Municipal Utilities Commission
Jerry Takle
Jerry Gumphrey
Jim Tralle
From: Bryan Adams
Subject: Elk River Geology
Phone: 763.441.2020
Fax: 763.441.8099
On August 16, 2007 Dave Berg and I attended a DNR sponsored meeting concerning water
quality and quantity issues in the northwest suburbs. The main purpose of meeting was to
promote the shared use (and construction cost) of a proposed surface water treatment plant in
Ramsey, Mn. DNR wants the City of Ramsey to use a Mississippi River source treatment plant
in lieu of Mt. Simon Hinkley aquifer wells. The DNR is allowing Elk River to utilize the Mt.
Simon Hinkley aquifer because of our pro-active conservation record and being outside the
seven county metro area.
During this meeting, they discussed the aquifers in our area. Attached are the following maps of
our area.
1) Map #I is an aerial map of the northwest suburbs.
2) Map #2 is the same area as in the above map with the glacial drift removed to the first
layer of bedrock exposed. Note the valleys in the bedrock where the gravel mines are
located in Maple Grove and Elk River. Also note the original Mississippi River bed
was much farther south.
3) Map #3 reflects the extent of the Mt. Simon aquifer in our area along with the other
aquifers in the metro area. The reason the DNR wants us to construct a Mt. Simon
observation well is because we are on the outer edge, and if the level drops, we will
be one of the first to see the change and most impacted.
4) Map #4 is a section showing the different rock formation in the metro area.
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