The Mankato free press. [volume] (Mankato, Blue Earth County, Minn.) 1879-1924, 1911-01-27
ONE MILLION GALLONS PER
DAY IN SUMMER TIME.
Report Submitted to Mayor and Com
missioners BY w. G. kirchof-
fer, Consulting Engineer Who
Looked Over Wells and Water
Situation in City a Few Days
Ago; the Recommendations.
From FRIDAYS Daily.

Ago; the Recommendations.
From Fridays Daily.
Scatter the wells and construct a
reservoir; also deepen the apera-
lures from which comes Adams ale
Gods own pure beverage-sO long
as the supply continues to increase,
are the vital points to be found in
the report which w. G.. Kirchoffer,
the consulting engineer who visit
ed this city Il few days ago, sub
mits to the mayor and commission
ers. The report reads as follows:
Madison January IS, 1911.-To
the Mayor and City Commissioners,
Mankato, Mimi. Gentlemen: AT
the request of your city engineer,
Mr.. John Wilson, | visited your city
for the purpose of looking over your
present water supply with a view of
making recommendations for in
creasing the same.
From information obtained from
Mr.. Wilson and from personal OBJ
servations, | find that your present
wells. These wells flow directly
into the suction of the pump when
it is running, otherwise discharging
directly into the river. Mr.. Wilson
gave me a complete history of the
repairs and alterations made on
these different wells, which of
course is familiar to you and it will
not be necessary for me to repeat
it here. While there | found the
work of deepening one of the wells
having reached depth of about
Jas feet. This well, according to
our best information, was flowing at
the rate of about $50 gallons per
minute. | looked up the records of
the city wells, some private wells
and the deep well on Bunker Hill.
One Million Gallons Consumed.
| found that the present consump
ton of water is about one million
gallons per day in summer and
about three-fOurths that amount in
winter. The consumption in sum
mer is just about equal, or some
what exceeds, the capacity of your
wells under the present suction lift
! | found there were a number OF
private wells in the vicinity of the
pumping station which, without any
doubt, have great effect upon the
capacity of the city wells, a,lu
which have been one of three caus
es by which the flow of water has
| been reduced. The other causes
are: The casing of these wells has
been eaten out by the chemicals il
the water, thereby allowing a por
| ton of the flow to escape through
the upper layers of the formations
which do not produce water; ther
it is also very probable that the
compounds of iron that are carried
in the water have filled up the
pores of the rock and have thereby
reduced the flow. This would ap
pear to be the case, Judging from
the samples of deposits which have
been taken from the bottom of the
wells.
Wells Are Too Close.
| took particular note of the fac
that all of your city wells are com
| paratively close together, which i.
not a good arrangement for wells
discharging large quantities Of wa
ter like yours should do if in proper
condition.
In view of the above facts, IL.
recommendations are as follows:
| would advise you TO proceed
with the deepening Of the well q
the station until depth of 1,500 t.
1000 feet has been reached. | eS
innate that the flow will increase i
the well is put down to this dept
and that the material will be gOOt
water-bearing sand This opinion il