The Coconino sun., 1923-02-02
WATER FAMINE DANGER
CAN ONLY BE AVERTED
BY ACTING PROMPTLY
Continued from Page One.)

turing and the railroad, IL may De
concluded that the total water to be !
available for actual sales should be
about 100000 gallons now and
310,000,000 gallons ten years hence.
If the present percentage of water
unaccounted for between the reser-
voirs and the consumers meters were
applied this would mean a delivery
from the reservoirs of 350,00O,000
gallons now and 475,000,000 gallons
ten years hence"
Only 65 Per Cent Sold
The reader will note that the en-
gineers say 225,000,000 gallons year,
should be available right now for act
ual sales. Records show that between
April, 1920, and July, 1922, more than
two years, the sales were only % per
cent of the water delivered from the
reservoirs to the city. This because
the meters register slightly less than
the actual amount of water consum-
ed: the balance being used In the
tourist camp grounds, fires, street
washing, drinking fountains, sewer
flushing, etc.
at must be realized" the engineers
continue, "that the flow of the
springs is at maximum during per-
iod of about three months each year,
and storage is necessary to provide
an accumulation of water to tide over
the period of minimum flow. 1t must
also be recognized that at intervals
dry years occur when storage is Vii
tally important in order to supply the
demand. 1t is certain that develop
mont of the interior valley will in
crease the supply greatly over that
now obtained, but it is uncertain just
what supply will be made availables
1t is important that the pipe line be-
sufficiently large to take advantage
of the maximum flow in order to re-
plenish the storage in the reservoirs
"Knowing the quantity of the avail
able supply and the rate of consump-
tion it is possible to compute the ca
nacitv necessary for the new reser-
yoir. We believe that minimum OF
so 100000 gallons additional storage
should be provided and more might be
desirable.
"The town now owns 40 acres OF
land in the northwest corner of which
the present 50,000,000 gallon reser-
voir is located We made tests ex-
cavations near this tract and In the
southeast corner of the tract itself
and the test holes indicate that the.
material in this latter location is
most suitable and would be excellent
| for construction Of the fill =
l~This southeast corner is large
enough to accommodate another err
| cdlar reservoir holding up to IS, ,O00,-
600 gallons If a 100,O00,000 gallon
/ reservoir were desired another 20-acre.
\ tract should be purchased east of the
] present one and the reservoir would
more naturally be rectangular >an
1 form.
1 IDThe outlet and drain lines from
I the present reservoir will require to
/ be relocated to pass around the new
reservoir. RI z
- Present Reservoir Best Type
eve have based our figures for a
T new reservoir upon one similar IN
/ type to the presenti1one, which we
1 believe to be ass good as can be
4 built The floor and. sides consist of
/ a double layer ofsconcrete blocks; the
/ lower LAYER is everywhere four inches
4 thick, reinforced, and constructed in
blocks, Is feet square with expansion
4 Joint material between them. Above
/ the lower layer is membrane wa
/ terproofing mopped in with asphalt.
| Above the waterproofing is blanket
layer of concrete varying in thick
ness from two to three inches, con-
4 structed in blocks similar to the low
1 er layer but with joints above the
center lines of the lower blocks. This
! is an expensive type. A cheaper type
could be constructed, but its safety
and tightness would be less.
Other Suggested Projects
Several different projects have
been suggested by different people
and have been investigated by US as
possible sources Of increased supply
/ These possible sources are as follows
41--Switzer Canyon impounding
| reservoir.
"2-Fort Valley impounding reser-
voir.
TS-Fort Valley well supply.
Y4-Crater Lake with gathering.
system of bitches and pipelines.
tt5-A further development of the
present spring supply. (Fhe one rec
omlnended.)
Switzer Canyon Reservoir
ssThe damsite which has been pro-
posed is located on the section line
between sections 10 and Is and direct
" between the centers of these sec
tions. The site is about one mile
north and one-half mile east of the
center of the town. The dam would
extend nearly east and west with an
extreme length of 1900 feet and an
extreme height Of 35 feet. This site
/ is the best which could be selected in
I this canyon in order to secure max
mum storage, but is far from being
! ideal. The lake formed by dam 35
/ feet high would cover 81 acres and
would have an average depth of IA
feet when full, and the total storage
would amount to Approximately 165,-
1 O00,OO gallons. The high water line.
would be at an elevation Of 6995 and
the lowest point of the reservoir at
6965. The elevation of the intersec~
ton of Leroux street and Columbus
is 6966 and of Leroux street and Rail-
road avenue is 6905.
"The water to be stored in this
reservoir would naturally be gathered
from territory about three miles
long by three-quarters of mile wide,