Evening star. [volume] (Washington, D.C.) 1854-1972, 1879-09-19
RGE, CUBIC FEET PER SECOND
DISCHARGE, GALLONS PER DAY.)

no.rn1 .425i5
$685. 80 -. 365i3
D0o' ..........- AS
DISCHARGE, GALLONS PER DAY)
TannluS 81, 516, $50
Pe arSy ,29O
heaiuniore ......-..-........ ...... 2O,9I1 $3.50
1t Is desirable, then, to give as free circuIa
ton and the largest reservoir capacity in the
mains consistent with economy in order to en- en-
sure even Very moderate pressure In this
locality.
Twelve MILL gallons per diem is assumed
worth the while to increase the present supply.
which may be approximately stated at "a, 900 OCo
oally; such an increase would undoubtedly
exclusively for the high gravity service would
provide an ample supply for some years to
come. 1t Is to be borne In mind, however, that
the estimates for such q main include no addl-
uonaI reservoir capacity, which will become
Necessary In order to deliver the water In con-
dltion Mt for domestic purposes. 1t also includes
no esn as OF the expense Of completing the
"A great advantage will be gained by prolong-
Ing the conduit; for this reason that It's line
Ies along the high grounds On the north OF the
CITY, ana Inc present distributing mains can be
reinforced directly from the conduit as occl.
sion may require, without entaillng any large
expenditure for connections.
Inc commissioners again transmit a report
previously made to the Senate COMMITTEES on
the subject OF the prolongation OF the conduit
ana us necessary connections, accompanied by
q Io VI luC piOpCotu TOute ana prOf1le OF the
country. After careful consideration of the
sup]ect, they see no reason to change the eSti-
mates therein submitted. AS much smaller
s s ior this work have been submitted
Dy othefS IL becomes necessary to explain the
reason for the discrepancies.
inc man point at issue is the necessity for
an adolti0nal reservoir. Such q reservoir in
wolves direct expenditure of $3.50. 900, in add.
ZION 10 large item for land condemnation for
It's site, and also 1900 feet additional length OF
conduit. e -
The reservoir is necessary for two reasons.
Inc nrst concerns the mechanical construction
| OF the conduit.
barring great accidents, which NAV be pro
Vlded against by reasonable care such a CON
struct1on Is liable from time to time to reuI1lre
repairs on account or longitudinal cracks where
carried on embankment, and minor leaks arts
lns Lom Unforeseen causes. Such repairs can
| OILY De MADE by drawing the water or for a
greater or less time, depending on the nature of
Cue injury. Inc commissioners hold IL to be
| an axiom tnat water cannot be turned Off from
severed city. They therefore say that a res
| ervoir capacity OF not less than fiVe days sun
| ply must be provided P
| The second reason concerns the condition in
which the water should be delivered
| the report OF the engineer 10 charge OF the
! aqueduct shows the condition or the water TO
] be as follows: ~
| WASHINGTON AQUEDCCT
| lELtTdct from annual report of Col Thomas T.
Ca%yJor the year ending June 80, 1919
observations OF the comparative clearness
| OF the water at Great Falls, the receiving res
ervoir and the distributing reservoir, were taken
and recorded daily. The results are shown In
| the following fable. " 49,