Sacramento daily record-union. [volume] (Sacramento [Calif.]) 1875-1891, 1881-12-08

flood tides covered cur low tule ground prior to
the building of the levees. Our land on Brannan
island prior to receiving river deposits was the
best In the world.
Recross examinations Ito Mr.. Catlinl-rhe waters
from San joaquin seldom, if ever run on Brannan
Island.
w. H. Hall. rec led-I have made an estimate of
the amount OF material remaining in the Gold Run
mine. to be washed 1t would equal in extent n
tract two and half miles long 200 Yards wide and
30 yards deep, covering superficial area Of about
500 acres and equaling 26,000, eco cubic wards NV
average depth in the estimate is less by from five to
fifteen yards than the average depth of the nit in
the Indiana Hill mine. Theeuantity OF material de
posted annually In the American river from mines
along its tributaries, as they were mined in 1872
EQUALS 1904 0G0 cubic yards The amount of sedi
ment carried by the water in suspension is 45o0 600
cubic yards. l have exhibit OF the sediment
taken by ftering the waters of dfe ent streams of
this State. have not apportioned this s 60, GOO
cubic Yards of material deposited in the
american, between its different branches
think the 100000 cubi; yards of material
held in the wa5er by suspension is carried
IN that condition to the Sacramento river. took
water samples generally from the mouth OF the
American river, at the Twelith-street bridge
There we're some samples taken at Folsom. , he
samples taken at Folsom procured by an assist
ant engineer under my direction. / arrived at my
estimate OF the amount of material deposited into
the river by obtaining the amount OF water used,
and information from mining SuperIntendents and
secretaries of mines County Assessors, and experts
generally. obtained information from E. Uren, OF
DUTCH FLAT,
And the Superintendent OF the Dardaneles mine.
The latter not only gave me information regarding
his own mine, but that of others. In most cases
size of sluices size OF nozze hight OF bank etc, in
many cases obtained in detail The amount
Of material carried in suspension, foot from the
bottom, is from II to p times as much as that at
the surface. By knowing the amount of water used
on each fork, and the character of the mines in
which it is used, we could ascertain about the
amount Of material deposited in its channel.
averaged that miners inch of water would wash
every "a hours a cubic Yards of earth Material
held in suspension near the bottom OF the stream
contained silicious particles. The water near the
top carried lighter material. The samples of water
were generally taken duringi hgh-water stages. |
recognize some material in those samples of water
that recognizable in the banks of the Gold Run
mine have also seen similar material in mines at
Iowa Hill and near
PLACERvILLE
The material this glass tube is very similar to the
material found in the samples OF water taken at the
mouth Of the American river The tube referred to
is the one containing the sample of water taken
from the Gold Bun mine by Mr.. Aardt.l The state
ments | received from the miners as to the number
of inches used in the mines l have on file in my
office. Some examinations have been made Of TIE
American river by an assistant engi eer, Mr. BCsky
who is now in Oregon have visited the mines at
Placervile and the divides between the forks OF
the American river. l found the most extensive
mining was being done on the North Fork. found
no mine equal in extent to the Indiana Hill mine.
found mining going pretty generally through
out the American basin. The Gold Run and Iowa
Hill mines were not i'll operation when | visited
them. judged OF the extent OF the mining at the
Gold Run mine from the magnitude OF their pit the
size of their pipe and the general surroundings
had a survey of the pit of the Indiana Hill mine
made by Mr.. Bosky. There was made az that time
estimate OF the quantity of material that had
been washed out OF that pit That survey showed
the size Of the deep excavation OF the Indiana Hill
mine TO be 3 047, COO cubic Yards That survey was
made in the fall Of 1879 Is,w no deep gravel mine
which had as large pit as the Indiana Hill mine.
ross-eXamnation (by W. C. Becherl-In the
neighborhood of Placerville the Ell Dorado Deep
Gravel Mining and Water Company has mine that
has been worked very extensively. The pit at Gold
Run is well defined. l visited the gravel mines
near Placerville some three years ago have also
been at the Dardanelles mine. The area worked off
in this mine is equal TO- if not larger, than the pit
in the Indiana Hill mlle The banks of the gravel
mines near Placeryille in some places are 200 feet
high. | visited
COON HOLLOW,
But did not stop there. have returns from the
different water companies throughout the basin of
the American river. The mining localities have
an idea of, but have no idea of the number OF the
mines. gave Colonel Mendelrs assistant access to
the water reports in my office | have made my
in Ell Dorado county from the water agents reports
and from other information as to how the water was
used. l should judge that the pits of hydraulic
mines near Iowa Hill cover of about $50
acres. visited
MICHIGAN BLUFFS,
And think visited the mine of Breeze and Whee er
bave general recollection that the ground worked
over was from onehalf to two-thirds as much as
that at Iowa Hill. visited the Forest Hill divide
Just before the rains began in 1879. That same fall
my assistant visited the mines in this portion OF the
American basin. The Superintendent informed me
that $50 sol t24-hours) miners inches Of water had
been used in making the excavation Of the deep pit
in the Indiana Hill mine. Here witness described
the character OF the material in the banks of the
pit. There were also three pits measured at Dutch
Flat, from the owners OF which ! afterwards OBJ
tanned their water statements The Southern Cross
pit showed an excavation of 59S,S50 cubic yards
washed with 300, 1 IA inches OF water which shows
duty of 2.0o2 cubic yards. TIE pit of
THE POLAR STAR MINE
Shows an excavation OF 1870 cubic yards washed
with 412070 inches OF water which shows a
duty OF 1.49 cubic yards. The pit OF the
Franklin mine shows an excavation OF 32G,I ,I47
cub yards mined with 91,4o9 inches Of water
which shows duty OF 81 cubic yards All three of
those mines are the other side OF the divide
from Gold Run, and deposit into streams tributary
to Bear river. The duty of the water is greater ia
some portions OF the Gold Run mine than Others
The Cedar mine eXcavated 2,057, 400 cubic YARDS
using 274, ,562 (tweuty-four hours miners inches,
which would give duty of rs cubic yards The
Cedar is an adjoining mine to the Indiana HILL ON
the Cold Run ridge. 1 was one day and half at
Gold Run. remained in the neighborhood OF Dutch
Flat ten twelve days. The results of all the COM
pete analysis ofmy work were printed in my report
Samples OF water taken from the river perhaps
fifty different times. These SAMPLES were either
taken directly to the Office, or to station we had
on the river. These with several hundred other
samples were sent the laboratory at Berkeley to
be filtered Witness here at great length explained
TO the Court in detail just how the samples were
handled, compared, and the results therefrom.l OF
The 3,500o0o yards of material which stated was
carried in SUSPENSION 900 0eo Of it comes from the
natural wash of the hiilsides agricultural lands and
Did mining dumps | never have had an experience
n mining, a mining engineer. The only por-
ton OF the mining basin examined very closely is
that along the river between Sacramento City and
Gold Run.
The. Court adjourned at p N. TO meet this
morning at 9:3o A. II.