Elmore County Republican. [volume] (Mountain Home, Idaho) 1910-1915, 1911-08-19
REPORT SUBMITTED BY ENGINEER BLAKE
ON MOUNTAIN HOME WATER SUP
PLY AND SOURCE

OF the underground flow about % fee
! distant from the rs IT. well and a
| bout the same distance from the firsl
II25 1T. well. This was used to de.
termine the effect upon the under.
! ground supply of drafting from 1t In
che pumping test and without such
data the pumping test would have
/ lacked one OF its most important fac
ltors. The two castings pumped from
were s inches in diameter and a 4
4 inch working barrel was used con,
nscted through a pump head to the
cross beam Of the keystone driller.
A test was started ON the rs It.
well but was discontinued after a.
bout u hours OF pumping due to the
continual failure of the supply This
Indicated to my mind the absence oil
any dependable flow just above the
lava rock.
4S hour continuous test was then
started on the rs fl. we'll during
which the 4 inch working barrel was
in constant operation with the ex-
ception of short periods, aggregat-
Ing 81 minutes, when stops were
made for repairs. The detail results
OF this test are shown in the ac-
companying tabulated data. It was
started at 10 a. m. on June rs and
closed at 10 am. on June 27.
Throughout the first 40 hours OF
this test, with the pump operating at
It's normal speed of 40 strokes per
minute most of the time, water was
discharged from the we'll at the rate
of about $4,000 gallons per "a hours.
During the first 40 hours, the rate
was raised to 69,600 gallons psr "a
hours during four short intervals and
once to 79,200 gallons per "a hours.
The temperature throughout the en-
tire test did not vary from 50 de-
grees Fahrenheit. Up to the last
hour of the AS hour period, the water
in the tell tale we'll, from the same
strata about % feet away, did not
ian enough to be measured by
steel tape.
During the last hours Of the test.
the speed OF the pump was gradually
increased to determine its maximum
capacity and to draft from the well
at the highest rate possible. From a
normal speed of 40 strokes per min
ute 1t was increased until during
the last Is minutes of the 40 hour
period, 1t was operated at 83 strokes
per minute, or over twice its normal
speed. When 1t reached 70 strokes
per minute and was drafting from the
well at the rate of 125, 900 gallons per
"A hours, the water i'm the tell tale
Well began to fall slowly and at S3
strokes per minute, it had fallen a.
bout inches which was insignificant.
Within 5 minutes after the pump was
stopped and the test was over, the |
water in the tell tale well recovered
this 8 inches and stood again where
It had been when the test was start |
ed.
Taking everything into considera-
Lion, consider this the best and |
most satisfactory driven well pump
ing test | have ever conducted. Itl
has been my privilege In the past to |
install number OF shallow well |
public water supplies and in the |
pumping tests on these wells it was !
not unusual for the wat,r to fall |
from 6 IT. to 8 1T. In the tell tale |
wells, the recovery being coed In |
case after stopping the pump. These
.ests were seldom, If ever conducted |
N dry years or in the dry period of
my year, generally being tested In
he spring or early summer; but the
'eslllts were sufficient to Indicate
clearly the judgment to be formed on
he dependence of the supply
Two samples of water from the well
ested were carefully taken after
until the water was clear.
These samples were sealed and deliy-
red to the State Chemist in Boise.
The result of this analysis showed
IN exceptionally pure water, suitable
or all domestic uses. A copy of
lis report on this analysis Is append
ID hereto.
do not, therefore, hesitate to ad-
1ise your Board that, In my best
Judgment and belief, the source of
water supplied to the wells at the
lortherly end of Alturas Street will
,roye to be adequate in quantity and
absolutely satisfactory In quality for
III the uses required In the Village
If Mountain Home for several years
o come. The underground body of
water will vary in volume from seas
IN to season and from year to year,
Us 1t always does but feel confident