The herald-advance. (Milbank, S.D.) 1890-1922, 1904-01-08
T WORKS
N SEWERAGE
SYNOPSIS Of the Report or Ctvit
Engineer Wolf, Of 81. Paul, ON
the Proposed system for mil.
bank---RcpOrt Submitted To
city council Monday Night.

III
The report Of L. P. Wolff, of st. Paul,
the civil engineer employed to make the
preliminary survey, maps and estimates
for a w~aterworks system and tor a
system, has been received by
the CITY council and was considered at
the regular meeting held on Monday,
the fourth inst.
The council decided to publish a
summary OF such report for the purpose
of giving the citizens OF Milbank all
possible information upon the subject.
It ia the desire OF the council to give the
city a waterworks and a sewerage
system, if the people want it, and feel
that it can be afforded at this time.
The engineer treats tine subject as
follows:
He takes the census Of 1900 as a basis,
which approximately shows a popula-
ton OF 1900. and in his estimate would
provide a system adequate for a popula-
ton OF 1000. He. states that the con-
sumption Of water per capita varies IN
different portion Of the country, and
attaches a table showing the consump-
ton in 81 American cities. In a climate
like that OF South Dakota the consump-
ton would naturally be large, and
would probably increase from year to
year. The average daily consumption
for Milbank has been estimated at lUO
gallons per capita, making a total daily
consumption of 100000 gallons for a
population of 1000, which would vary
largely from this amount, reaching a
maximum during the dry summer
months. The consumption OF water
will vary during the different hours OF
the day, usually reaching a maximum
during the forenoon. The amount OF
water used for fire purposes will not
materially affect the daily average
consumption for the year. Efficient
fire protection will demand not less than
three fire streams each of about 200
per minute for q evere fire,
" hich would make a maximum rate for
all purposes of 100000 gallons, which
be the capacity OF the plant.
wATER SUPPLY.
There are two general sources of
supply which have been consid-
First, deep wells, and second
shallow wells. The deep we'll system is
not recommended, and in the opinion
of the engineer shallow wells can be
sunk in the gravel beds along the creek,
which give promise OF a permanent and
ample supply of water. Two locations
have beer considered. one at the north
end of Main street, near the creamery,
and one Immediately east OF the railway
reservoir on the south side Of the Whet-
stone, and it is recommended that test
borings be made to determine the fact
as to whether a sufficient supply can be
secured from those sources. 1t will be
we'll 10 locate the we'll as far up the
creek as possible on account of the
danger of pollution of surface water
and 1t is also recommended that in the
event that If water cannot be found IL
the two locations mentioned, that a tes
be made on the north side of the Whet
stone.
The well should have a diameter o
about 20 inches and should be e~xcavatet
to a depth of about ten inches below tn
water level. The we'll can be construct
ed with walls of brick and masonry o
plank. A well constructed with Il
| wooden curb it is estimated would cos
$500, and with masonry $500.
MODE OF sUPPLY.
There are two general modes OF suppl,
discussed, n direct pressure and tn
other elevated storage. The direc
pressure system is considered too expen
sive in construction and also in tn
operation thereof, and the elevate'
storage is recommended. A thir'
system known as the air system is ais
discussed in the report, and that system
is considered sufficient for a small town
but is entirely inadequate for a city tn
size of Milbank.
The greatest capacity that could b
developed by a system Of this kline
would be27, 900 gallons, and it is show
by the tables attached to the repor
that with a capacity as small as tina
it would be necessary to operate tn
pumps practically all of the time, an
then, too, the capacity would be en-
tirely inadequate in case of seriou
fires. This system is also considere'
more Or less in an experimental stage
and as compared with the others is
sort of a toy system. With elevated
storage. the system can be used b,
pumping the reservoir full twice a day
and during a portion of the time onl.
once a day, and the pumps can b
worked at their proper and economical
rate of speed.
WATER TOWER
For the elevated storage system
would be necessary to have a waite
tower of wood or steel, supported o.
a steel tower of four posts about 8
feet in height, the tank having
capacity of not less than $4,000 gal
Ions. A wooden tank would have
diameter of rs feet and slaves % fee
in length. A steel tank would have
diameter of 20 feet with vertical side
about % feet and q curved bottom. !
this tank was three-fourths full at q
outbreak of q fire it would furnish
three streams using 200 gallons pc
minute for one hour and forty minutes
and If half full two streams for tn
same length of time or three stream
for one hour and seven minutes, thi
will give ample time to start tn,
pumps. A steel tower with . woodel
tank would cost $1,000, and with
steel tank 8 $500. The all steel struc
ture is recommended, and would las
for q very long time, while woode1
tanks have to be renewed at interval
OF from % to Is years.