Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1901-11-30

extend inland to the top Of the mountain
forming the backbone Of the island. thus
leaving the water shed in the control and
under the protection Of the company, while
two large gulches run down through the
land, to wit, Wahiawa and Lawaii and the
large Hanapepe valley TANKS the plantation
lands on the western border. careful ex-
animation of the soils comprising the area
to be in time all planted with cane shows
them very uniform in character and compo-
sition.
The soil is of a dark red on the lowlands
and red and gray on the uplands. The SOILS
are of extreme fneness and contain h1gh
percentage of food elements such as lime,
potash, phosphoric acid. etc, all OF which
ia decidedly advantageous when 1t comes
to the question of irrigation and the use OF
fertilizers.
In the settlement of affairs between the
McBryde Estate and the McBryde Sugar
Company Limited, the company was most
fortunate in securing the entire cattle
ranch by means of which absolute control
Of the water shed lying above the cane
lands was obtained. The control OF this
water shed is extremely valuable not alone
for increasing the supply Of water from the
surface mountain streams, but for Its ell
feet in inducing an increased rainfall to Nil
the subterranean streams for an artesian
flow to supply the pumping systems at a
time when the natural streams are low. Az
present three pumping stations have been
installed, all of which are In operation.
Pumping station No. Is situated In laval
gulch, where have been bored and cased
twenty -four wells. The wells have all been
tapped by a four by six tunnel 1910 feet
in length. beginning sixteen feet below sea
md civ ha1Ow end.
Here has been installed Reidler
triple expansion, 500-horsepower engine.
while steam Is developed by three sets OF
Babcock and Wilcox boilers, lifting 10000
600 gallons Oh water to height OF $50 feet
from the surface of the water in the con.
crete sump. This pump is designed with
discharge pipes for the purpose of covering
cane lands on both sides of laval gulch.
Pumping station No. 3, being located In
Hanapepe gulch. consists Of Risdon high
duty pump of 100000 gallons capacity.
lifting the water $50 feet. Steam Is gener-
ated with three Heine boilers and supplied
with the Green fuel economizers. Water
for the system is obtained from wells, sur
face tunnels and water rights from Hama.
pepe river. The main water supply
coming from the Wahiawa river at
an altitude O, 1900 feet, Is conducted through
a tunnel 1850 feet In length. having a ca
pacity of 30.O0O000 gallons In twenty-four
hours, and discharging into reservoirs four
in number already constructed. No res
ervoir has a capacity of 115.000000 gallons.
No. 3 reservoir, 78,000,0O0 gallons; No. 4.
b5, 0OO, 900 gallons; No. 5, 75,0O0.OO0 gallons;
No. 2. 115,OO0.O0O gallons (now under con.
struction). There are also two small reser.
voirs that take the night and day water
from pumping stations Nos. and 3, already
constructed, having a capacity OF 100000
gallons each. The water for the reservoirs
connects with the same bitches that the
pumps discharge into at their several lifts
or elevations. which permits OF continuous
irrigation from reservoirs or pumps. All
the reservoirs are connected with each 9th
err so that water can be drawn from any
one of the reservoirs to the main supply
ditch.
The main bitches leading down from the
reservoirs to the ditch system which Is
supplied by the pumping systems are two
feet deep and five feet wide, having a fall
Of 20 feet in a mile and half. The main
distributing bitches have a fall of Ave
feet to the mile, having a normal carrying
capacity of 25,O0O,O00 gallons In twentyfour
hours. In conveying water across gulches
inverted syphons have been laid, using 49,
inch double.riveted steel pipe. The next
water supply Is from laval and .,alaheo
streams. This water Is intercepted In its
course by concrete diverting dam now
being constructed and conveyed through q
ditch two and half miles In length having
a maximum capacity of $4,000, 900 gallons in
twenty-four hours, and conveying the water
to the West laval cane fields extending
clear across the KawaiahaKa gulch. A new
reservoir Is now being constructed in West
laval for the purpose of storing the flood
waters from the laval ditch system, which
has capacity for storing 900 gallons.
The improvements contemplated in the
still further development Of water will con.
sist Of an extension Of the reservoir system
by the construction Of one large reservoir