THE CORPORATION OF THE CITY GF PORT COQUITLAR

2272 McALLISTER AVENUE a , .

PORT COQUITLAM, B.C. 2 : . TeLerHont, 941.8411

OUR Fils
April 13th, 1973
REPORT

Alderman E,W, Mabbett, Chairman, Public Works Comittee
Alderman L.W, Trabouley, Deputy Chairman, Public Worke Comnittea,

V.G. Borch, P. Eng.

Re: Dayton & Knight Led.
Waterworks Survey.

Reference ig made to the Dayton & Knight Ltd. Watervorke Survey
C»ced November 2let, 1972, and to the Council Committee Meeting held Monday,
January 15th, 1973 at which time Ne. Dayton and Mr. Berzina explained their
Waterworks Survey.

The Council has recently approved revised Water Rates and
Connection charges so that it is now possible to anticipate sufficient
funds being available to commence a major upgrading of the eysten necescary
to provide for expected population increases,

The Greater Vancouver Water District efter receiving and con-
sidering the Waterworks Survey advieed the undersigned to inveatigate more
thoroughly the desirability of a Welcher Avenue connection inetead of the
recommended (by Dayton & Knight) Essondale connection, Thie inveatigation
has been completed by the undersigned and has also been discussed at aone
length with Dayton & Knight Ltd. It is tecom.ended that a connection
approximately in the Welcher Avenue area be instalMed rather than the
Essondale connection for the following major reasons:

1, Adequate water supply will be available more quickly to the
South side low zone in general and to the downtown area in particular, It
. will also cost considerably less than the Easondale connection scheme and
this lesser coat should be within projected revenues,

2. The Dayton & Knight recommended schene places considerable
reliance on the existing Shaughnessy connection to the South gide, The
continued reliability of this connection particularly at the R.R. underpass
is possibly open to question. It is recommended that the Welcher Avenue
connection be designed to not depend on the continued existence of the
Shaugt y oe ‘ton .

(2 ; April 13th, 1973

It ig recommended that Dayton & Knight Ltd. be engaged to design

i: and prepare working drawings and specifications for a supply line fron the
*48 inch diemeter G.V.W.D. line in the vicinity of the westward extension of

Welcher Avenue to the north end of Mary Hill. It is further recommended
that this supply line be split into two projects, one fren the G.V.W.D. line
te the downtown area and one from the downtown area to tha north end of Mary
Hill. Ie is anticipated that the first project could be constructed during
the winter of 1973-74 and the second Project could be installed during the
winter of 1974~75, -

It is not anticipated that low water pressure problens any wores
than those encountered last sumer on Mary Hill will be faced this sutzer
unless the summer ie extremely hot and drys This of course ta because of
the fact that virtually no development has taken place on the south aide
during the past year. At auch tice as the firet project (supply Line to
downtown) ia completed it will ba possible to consider increasing the cap-
acity of the existing booster pump station on the north end of Eastern Drives
it is anticipated that by increasing this pump station capacity, adequate

water pressure will be available to tho existing residents on Mary Hill for

‘ several years,

It is recommended that, aside from the exception outlined beleu,
the freeze on water connections te new residential developmente on the south
aide be terminated since the two supply line projects should provide an
adqquate water supply to proposed new developments. Even after the tvo
supply line projects axe completed, however, an adequate water supply vill
not be available to any new development south of the B.C. Hydro &/W nor
to the 8 acres between the B.C, Hydro R/W and Eastern Drive,

Finally it ie recommended that the Dayton & Knight Waterworks
Survey be sede public, .

_ *“ Reapectfully subzitted,

.. WG. Borch, P. Engey °
City Eagitieer,