, 1891-10-21
OUR SEWERAGE.
THE ENGINEER's REPORT TO THE
COUNCIL TODAY.
More Details in Connection with
tine Reservoir and Finish
Tanks--A Thorough
SyS tenn :

J.. 5. Camp today submitted to the mem
bers Of the city council, his reportupon the
c1ty's sewerage system, with which they
are all enthusiastic.
In preparing the plans Mr.. Camp states
that he has been governed by the most
modern experience, that will remove from
the city all organic decomposition and
waste All pipes will be provided with
means for inspection,
IN formulating Olynpia's system, two
difficulties are presented. First, the north
ern part of the city, the natural outlet for
sewerage, is tide-locled the floor Of the
principal block being on an average Of not.
more than two feet above highest tide.
Second, the city is bisected by the tltn-
mel through Seventh street from Jefferson
to the west of Main street. To overcome
this difficulty, Mr. Camp recommends the
construction Of the reservoir, as stated in
| yesterdays TRIBUNE. This reservoir, will
be located just east of the long wharf, suf-
| ficiently distant from the meander line, to
receive the benefit Of the tide. The sewer
age of the city will be deposited iii this by
means of a 20 inch main from the foot Of
| Washington street.
The reservoir will be about 100 feet
square in the interior and will be sur
rounded by walls eight feet thick, inn
bedded with puddle clay and supported by
4 a double wall OF piling. Into this reservoir
the sewerage constantly flows.
1t is emptied at each receding tide anto-
matically by means of a brass bell about
four feet in diameter in connection with
which are air ryalves, by which it is regu-
lated. The bell works on pulleys and
4 wheels. The weight of the water carrys the
hall tT fI1oh hot J.
1 which 1t opens the outlet, permitting the
4 sewerage 70 flow out with the tide as the
tide reeedes, the gate gradually closes and
no more sewerage can escape from the res
ervoir until the tide again comes in and re-
cedes.
4 All the sewers in the south section Of the
! city connects with main sewer on Eighth
street, which in turn empties into
a Hush tank at Eighth and
! Jefferson. This tank is flushed by au an
tomato syphonage periodically into a 16-
inch main that passes down Jefferson to
Second street with fall of one foot in 5C0
and emptying into the eighteen-inch main
at Second street. The eighteen=inch main
4 continues down Second to Washington
receiving the laterals between Jefferson
and Washington. North Of Seventh the
4 e1ghteen-lnch main enlpties into the
I twenty y-ineh main at Washington street
| which continues out to the reservoir.
4 Ine large HuSh tank at Eighth and JET
ferson is connected with one of the CITY
water mains, flushing 1900 gallons of sew
erage from an elevator twenty feet above
the reservoir with a velocity that will re-
move any doubt Of an insufficieney of fall
in the main sewers from Seventh street
! north. AT the head Of each small sewer,
or at the point from which it starts is also
located smaller flush tank which Will
hold from 200 to 406 gallons of water. All
these tanks are conneesed with the city
water works and are automatically flushed
l every tWenty-four hours
Inspection pipes are located at distances
| Of 900 feet, and are connected with a main
| hole brought to the surface on slant,
making it an easy matter to remove ali
distinctions that may accumulate. The
system Mr.. Camp submits, has been form.
ulated after every detail of elevation and
topography has been minutely considered
and there is no portion of the city that can
not be made to connect, thus leaving the
4 city in a position to build much or little at
| the. present time, and to extend the system
as future needs require. The main sewers
1 Will be fully adequate, not only for city
OF 10000, but perhaps for one of 10000
The report is accompanied by designs
showing the profile of every street, and es-
Inmates of every distinct section and fea,
ture in connection with the system The
report will probably be acted upon at the
! council meeting tomorrow night.