ORTOGRAPHOBIA WATER
the
Alan Tomczak
Park - ArtesEan
Well
Another hidden free flowing artesian well in
the City of Ashland found along Chequamegon Bay,
Lake Superior. The Copper Falls Aquifer provides the water source
for these artesian wells.
Porous stone is sandwiched between a top and bottom layer of
an impermeable substance like clay or rock. The artesian water
pressure is kept high due to porous stone being crushed
between impermeable rocks along with the water’s
density, and elevation of recharge zone (gravity). When you get to
a point below the entryway of the flow, there is enough
pres
sure (artesian pressure) to bring the water
up. The water in the aquifer is
also under enough pressure that, when the aquifer is tapped by
a well such as this, the water rises up the well bore to a
level that is above the top of the aquifer called the
potentiometric surface.
The temperature of the
water from artesian wells is generally constant because of its
depth. Depending on the well depth the water temperature can be a
few degrees above the annual mean temperature. The water
temperature decreases about 1 °F for each 65 feet of depth to the
well. The mean annual temperature for the Ashland, WI region is 41
°F.
** Artesian Well and Confined Aquifer
Animation**
TO LOG THIS
CACHE:
1) Determine the output of the well in gallons
per minute (gpm) and/or measure the temperature of the water
(°F).
2) How did this Earthcache get its
name?
E-mail
me the answer(s)
HERE.
Links: