The morning news. [volume] (Savannah, Ga.) 1887-1900, 1895-07-15

Harmon street to Bolton street at which
present Bolton street sewer. At this point
both sewers unite into one Of nine feet
diameter, which still continues under Tar-
mon street 70 Wheaton street which It
crosses and runs down Third street past
the Savannah Cotton Mills, and joins the
line OF the present Bilbo canal al Perry
lane From this point it follows the line
OF the Bilbo canal to the river
At Wheaton street the sewer changes
form and becomes two, the smaller one
for the regular sewage of theleHy and ca
pable of serving population of 100, 900 peo-
pie, the larger one being for storm water
to come into use when the smaller one is
sureharged, and is estimated and con-
sTucted 10 carry on the heaviest rainfalls
of the district.
The storm water sewer for a considera-
bic distance follows the bed of the Bilbo
canal, and the smaller sewer runs along
side TO the Savannah river, into which it
empties five feet below low water
one reason for constructing the smaller
sewer Tor sewage proper is to allow Ii to
flow off more rapidly and continuously.
and at high water to have a smaller
quantity banked up than would otherwise
be were 1t flowing through large sewer
The bed of the Bilbo canal from Bolton
street to Perry lane would he filled in af-
ter a A-inch pipe had been laid for the
service of those placed Immediately con-
tiguous TO the depression through which
the canal in part runs.
The line for the outlet has been care
ully selected, and gives a line where the
the way; where the excavation Will not
be severe, the deepest cut being eighteen
feet at Duffy street and fifteen feet at
wheaton street; and where advantage can
be taken of all available grade.
The grade of the sewer is uniform all
the way, being one foot in one thousand
feet, and can be carried out on this grade
to any part of the southern section of the
city, or as far south as TatemsvilIe. and
still have depth Of ten feet to the grade
It will be seen that this outlet is availa-
Die to every portion of the city that can
Dy any means drain to the eastern side.
or course that portion on the western
slope will still be compelled to find its
outlet direct to the river on that side
Assuming then, that the location of
tne outlet sewer is satisfactory, from a
typographical point of view, let us con-
slider the advantages of an outlet into the
Savannah river.
discharge into the river at the mouth of
the Bilbo canal, and the outlet would be
nve feet below low water, so that beyond
a cork or correspondipgly light substance
there would be no indication of its pres
enee to any casual observer.
Savannah river has always been the re-
ceptacle Of Savannahs sewage, and re-
ceived 1t in the most crude manner and
most objeetionable form, yet, until re-
ter supply from the same 'S river W a
and within a few hundred feet
Of one of the main outlets. Still we never
water
from the river was contaminated with
sewage. For the past twenty-five Yea RS
Bilbo canal has discharged at one point
the accumulated sewage of a growing civ
becoming within itself each year an in,
creased nuisance, but once il reached the
river it ceased to be cause of complaint
Let us look for moment at the compo-
sition and dtlution of the sewage of Sa-
vannah as it reaches the outlet
The mean daily discharge Of sewage
from the present Bolton street
according
full observations taken by Mr. J.
deBruyn Hops. assistant city engineer,
ON on o Aug Eat, 1?th and 18th lSs4 amounts to
twenty-four hours. Assuming the popula
ton which daily makes use of this sewer
to be $4,000, this would give a daily pro-
portion of i29 gallons to each Individual
According to standard English au-
Sthorities, a population of 10000 will pro-
duce in a day "a, 434 pounds of urine and
Ioeces winch IN a population of $4,000 is
equal to S.793 gallons. This would make
the dlution at the outlet 40 gallons of
water to one gallon Of crude or original
waste matter.
According to the government dSoD re-
ports of Capt Q. NJ. Carter, the average
amount of fresh water which passes down
the river in front of the Savannah. Flori
da and Western wharves is Is 40 cnbtc
feet per second or 1855, SO 900 cubic feet
In twenty -four hours, which is equivalent
70 q now Of 10 2S6 SIS, 40 gallons of fresh
This would represent the dilutent capac-
ity of the river, as 1t is water which is
being daily renewed, coming fresh from
the headwaters of the river, and not de-
pendent upon tides or winds as the streams
are into which the other proposed outlets
would empty.
This quantity of fresh water is equal tn
supplying 2'64O gallons to dilute each gallon
of the already diluted sewage.
or, to state it in another way, the one
gallon of original matter of urine ard
foeees, by the time It Is well into the sa-
vannah river viii have been taken up and
absorbed by 1,16A2l5 gallons Of fresh
water SSA
me most deadly, poison would lose all
erect with such dilUtion, whilst the most
powerful aromatic would be left without
the semblance of a bouquet
To still further show the cornnletaros.
with which the Savannah river can taxa
care of the sewage of the city I vvoiii5
refer to the careful and compiete ansi1s
ses made Iyi by Mr. d. f; Finney and Mr.
gust OF 1894. The results of these anaiS,-
ses show that the sewage as ii leaves
the outlet IS so freely diluted as 10 co1s
tam very small percentage of deleterious
eomponents in given quantity. -