The Ellensburg dawn. [volume] (Ellensburg, Wash.) 1898-1914, 1911-07-06
APERT ENGINEERS
REPORT ON WATER
r,,ensburg, Wash, July 3, 1911
N the Honorable


10 the Honorable
Samuel Kreidel, Chairman, and G..
G Stewart and George Michels.
Members Special Water Commit
Tee of the City Council. Ellens-
burg, Washington.
Gentlemen
have the honor to submit the
allowing report upon the proposed
Municipal Water Supply, as planned
w Mr.. G. n. Miller, your City En-
Gneer.
The project cOntemplates a COM
bination direct pressure and pravity
supply from one or more wells to
Ne located near the southeast cor
nor of section 10, township is north,
nnee II east, Kittitas county, a dis
lance of 1-2 miles northwesterly
from the city limits. The wells are
10 be sunk into the underground
vater-table of the valley, and to be
equipped each with an s inch. dou-
Bic STAGE centrifugal pump. having
4 rated capacity Of two million gal
Ions per day against a head of $50
feet. Each pump is to be direct con-
nected to a variable speed. alternat-
hg current, 60 cycle, phase, in
duction motor, electricity to be fur
nished by the present municipal
lighting and power plant. The force
main Is to be 16 inch wood pipe
about 1-2 miles long, serving en-
route combined equalizing and SER
Nee reservoir with capacity of
about one million gallons. The res
svoir Is to be located upon a hill
Ode contiguous to the direct route of
he main, at an elevation of $50 feet
above the pumps and l 1-2 miles dis
tant therefrom, which places 1t 225
tees above Pearl and Fourth streets.
This gives static pressure of 81
d., and an ordinary fire pressure
of from 10 to 80 lbs. at the hydrant.
The force main will thus deliver wa
tes to the distributing system either
under direct pressure from the
pumps or by gravity system from
the reservoir, or both. The distrib-
utng system is to be a gridiron lay
out Of 4, 6, 10 and IL inch wood
pipe, equipped with the necessary
utes hydrants and interconnec-
ions to insure active circulation and
proper capacity for fire draft. For
general outlines refer to the city en-
cneer's maps or plans.
have gone over the salient en-
uneering details and find them in
Keeping with good engineering prac-
~, while the estimate Of cost. vi:
N0O,OO0.O0, is fully sufficient to
meet all construction expenses. The
opacity of the 16 inch main is large
aough to supply a population three
unes greater than the present pop
lktion.
find further. according to the
Fonle submitted to me, that the
"pply system is so laid that II at
" time In the future the city de-
@0 to convert this system into a
@alsht gravity supply from Lake
We Elum, 1t can do so, by extending
We main from the wells up to the
.'eessary gravity intake. without
's''ner cost than that involved in
w extension beyond the wells. In
~ respect also the plans are intel
~satly matured and designed with
H0per forethought.
nave given the subject of the
'vuHCE OF SUPPLY special and
.ae'ent Investigation to warrant
We Conclusions herein.
a. previously stated the wells are
we sunk into the underground
*r liable which characterizes the
"''as valley for a distance of at
~ miles above Ellensburg and
wv i've miles below. This water
''ns stratum is a veritable under
s00nd stream varying in width
va perhaps 1-2 to miles. In
'me and extent it substantially
''oes with the floor of the low
Ss't OF the river valley. and the
=" which flows on top of this sat-
' sheet rudely marks the long
as' axis. or central course, from
~"est to southeast, the stratum
A. marked slope and velocity to
"Otheast. the gradient or fall
probably as great as 10 feet
nile. The normal top of this
'les from to 20 feet below
'ace of the ground. while
tts tests with an inch CEN
pump lowered the top about
49," stable level. AS is usual
such cases the channel Of
u. sF has through centuries of
In, ~. 'ome tightly puddled with
-