The Mankato free press. [volume] (Mankato, Blue Earth County, Minn.) 1879-1924, 1908-11-27

estlhg TO review the last paragraph In
regard to the Front street fill. We
hauled there at a cost of q cents per
yard. Pleasant street is nearer Will
lard's hill tnan Front street but the
dumping is not as convenient. However,
the former should more than offset
the latter, in which case it is quite
evident that this work could be done
for n cents per yard, or eleven cents
less than the bid. Since rejecting the
above bid, we have received an offer
of 30 cents per yard.
Sewers.
The work of cleaning sewers is pro-
crossing nicely and the cost of DOING
the work has decreased from $3.50 per
block to $3.50 per block, the latter be-
ing the average for the past two
weeks. We expect to continue this
work as long as the weather will per-
nit, and hope to have the sewers in
fair condition before winter finally sets
in
Streets.
alleys. have received small amount of
gravel and cinders. Mr.. Palmer, of
the Hubbard Milling company has
kindly offered to give the city all the
cinders coming from the mill for sim
ply removing them, and we propose
throughout the winter to store all that
are not needed, and in this way, will
have a lot of valuable material for
repairing the sidestreets and alleys by
next spring.
All cross walks ordered at your last
meeting have been put in.
We also submit elsewhere, profies
and report on the suggested curb on
Lincoln street. There are q number of
lesser items that we do not feel as
if you would care to be troubled with,
and therefore do not report in detail.
Broad Street Well.
We are sorry to say that all at
tempts to locate the well have so far
failed, and all work has temporarily
ceased until we can secure apparatus
to proceed on larger scale.
As you already know, the well has
flow of nearly six hundred gal
Ions per minute and the static pres
sure, at the surface, twelve or four
teen pounds.
The formations through which the
we'll passes are about as follows: eigh
ty-fve to ninety feet of glaciated ma
terial everything the impervious lime
stone formation of fiftyfve feet. The
lime stone formation is of one homo
geneous mass and Overlies the water
bearing sand stone, known as the Jor-
dan sandstone. This sandstone. unlike
the everything limestone, varies both in
texture and porosity. However, the
effective size of the sand grains have
been determined by various expert
ments and has been found to be about
10. g mm.) and the porosity 20 per
cent.
While the well penetrates the Jor-
dan sandstone to a depth of $50 feet,
only about $50 of this is water bear
ing, the remainder having little or no
porosity.
We think the absurlity of the pro-
position to cement this hole is now
quite apparent, even if we are fortu-
nate enough to find it.
Now consider the second proposition
of drilling another hole as nearby as
possible to the present one, with the
idea of relieving the pressure, then
filling and eoncreting around the top.
From the preceding discussion You
see at once that all the pressure it
is possible to relieve is the surface
static pressure unless we resort to
pumping and place deep well pump
on the. well, and then the minute the
pump stops the present pressure is all
restored, including the surface static
pressure: and so conditions have not
been bettered one particle.
As to the third proposition of aban-
doning the well entirely. The quantity
of water flowing under the head it
has, is sufficient to wash out or nn-
dermine the whole locality, and the
city will be obliged to pay many thou
sands of dollars in damages to sur
rounding property owners, as wea as
the enormous expense of stopping the
flow under such conditions.
1t would seem superfuous to con.
tinue this discussion longer. in order
to show that the only rational method
is to find the present well or hole
through the limestone, regardless of
the cost, for it is sure to be the cheap
est plan, when considered in the light
of the facts and conditions that exist.
n
City Recorder HOdann presented an