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| . SATURDAY, JANUARY 22, 1973 — 40 PAGES HOME EDITION FINAL :
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' Firstot Twe ” has deteriorated tn the past I$ material where the natural years aga the fiure hag Production and pood woter 000, SPCcEs
: Above the last gravel pit 3¢4r to a brown mublied — cover has been removed, dropped drastically and — cirentation,” he id meee. Pines
$ locatid on the ‘banks of the creck Mr, Langer says the pravel similar drops have occurred Se. Langer has been aereees eves stetirean
} Coquitlam Raver, the water Is The dramatic change in the companies should divert these with Pink anit Coho salnion working an the problems In ——— cue
} stil clear. . Quality awl even colur of the — streuns around or over Ue and steelhead. (sce graph} the Coquitlam River for the =~-=- Cono
‘ fess than a mule down —  Rulet can be seen toda pils by imrans of trouphs, Mr. tangeeexptained to The «Past three years for the egg
} below the gravel pits — the Fetleral fixberles service flumes, culverts or clean Columbian hnw this silt affect — fisheries Strvire,
b] water is brown and opaque, tintorist Otte Langer sald &ravel Sreambeds so that the aie fish so alversely: In April, 1952, a report from
4 : much of the protlens stems Water wall remain clear, . - - the fisheries seevice was
{ The river is ted by ; ; When silt enters the tiver It sutsutted ¢; request lo the ‘
Coquitlam Lake and partially (Fei sit which is washed into abunitance it enffocates fish ptannin,, ¢ carn ne
crntrotied by a RC. Hydro he fiver thresich eveavated BY IUD STERVES ens which are laid in the RANK S-parkment In Pork ogg
; dam at ite mouth From this « faved pits wtoch score the Columbtan Stalf tteporter grivel ~ as well as Uie insect Cognit.
{ fine av snten, the river — hills of the vali v. Sry which Ihe young fish feed on, Thw report, sinned by R. A.
' Uetore eeavation, these ent. i's a. great ‘The insects live around the  Crouter, manarer of the
: sean do cot carry an ap advantaye fer the companies — gravel and feed on the algae Southern operations branch of
; Freciable amount of silt into pecinuse they Ret a free which grow on the rocks, Silt We service, cites facts and 1900
‘ Cequitam and Flow into the UC Ah nee tat palnin for washing service for their scours the alae off these figures on pelluticn of the
} Fraver Hier just east of vranaeen : the natural pravel,"" he suid. Tocks, cuts off the light Ulver by kravel operations: .
H Fraser Mills dinALE patterns, “They've just destroyed — necessary for its growth and Dec. 17, 197, a sircam
bas inunediately shove Jack C :
' ¥rom oa fresh, clear Run off and seepage water that arca of the Coquitiam = smothers It from needed unediately aleve jack Cewe \--->y eee ee
fecreational stream teeming — then calicets ant the natural River." oxygen. Lid.'s gravel eprratinn con Y Ts were
AHH Steelhead Wout snd a flow af Uiese streams picks up From an average of 4000 Gacd clean gravel is ltalned 414 pasts per million (95°40 t9earas tag rsa MEO MAES 1859-70
“Variety of salmon, the clver the distubed sill and fine spawning Chun aalmion 18 needed for good fish See RIVER, Poge? Graph shows dramatic dectine jn awring salmon and steethead mn the Coquitlam Rs
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3° to] ; @ or az) Aare f
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Piyvear Cemree] VIET VIS may §GIRUICIE7 Cre als
aus iw . GCS eu-£ a! © Wau aw) uy Ub ar eer y wud Nees ek
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(Continued from Pape $) area or provide a stable staff, and press around At Its intersection with the — the-pit and the sill-sediment areas shouht Le stubllired “Stream diversion and tution” he stated
(ppm of suspended channel for the stream segments of the operation river it: fnemed a chudy, — Into the river, when the operation is Uireiy Proper settling: ponds are of Tate last yar, crmen
. seorronts : susp Dut, stream diversion fg Friday afternoon, opaque, brown strip several:

When the same atream
entered the pit, sediment
levels increased tu 32.459 pan
and ues complete silt load
entered the Coguitlai Hiver,

During one day of relrave
ot that rate such loads mould
contribute over 2.7 milliteg
pounds of sediment to the
Cher.

Dec. 17,1971, mearurcinents
in a stream which was in
fercepted dy the pit ef Aflard
Conuacters were 20 ppm
ateve the pit are 4.050 ppm cn
eMernog We river,

The report notes thal no
effort was made by the
operators of the pil to divert

© ly 8 parbal selution lo the
preblem. Some companies
waz Lhe geavel before it ig
turketed, and this
water ends upon the river
alse,
Settling po
mended, al
Powdts aul Gaal these have to be
Mantened date, and if the
Specter. are nit Crepared to
Go this, the pou
Mr, Croutee’s report notes,
“Setdtns ports are one of the
Test practical and
economical means of desilting

Jorgensen, ag
vepresentative of Jack Cowe
Lu Ied ao tour of Coquitam

Qow around the

pal councul L

Mr, Jorgensen reaffirmed
the statement af Mr. Chouter’s
thal the settling pond must be
thaintained alent daily,

Ue pranted anti peml which
had tled up sith settled sit
until it was ureless and now
has lo te esther dicpenced with
o¢ cleaned our completely,

Tn abont four of five munths,
Mr. Jurpencen sald the pend
— rourhly one-quarter of an
aere = had necumulated 25
fect of sitt,

Friday, a stream of water
was falling down & gulley
carved in the mountain,
throurh the disused pond ful}
of fine, muddy sll, under
Pipeline Road and ints the
Coquitlam River,

fect wile before finally
merylng with the clearer
blue-green water and turning
it brown also, .

According to the Usherles
service report:

Settling ponds should
consist of two deep basins so
that at high flows both basins
could be ured to provide
ailequate retention of sill,

At normal fers one basta
woultl be used while the olber
was dewatered for removal of
accumulated sediments,

The Now of water out of tha
pond must pass over a
atabilized channel (pipe,
flume etc.) near the top of the
pond t% prevent wash-out of

LY
:

This overburden, (silt
sedinwnt) — aiste material
from mining the gravel —
fst be stered sway from
posible contact with sunning
water er the entire excercise Is
useless,

Y overburden and pond
sediments are to be dumped
as fill along any waterway,
speeial precantions must be
fakea to prevent Wer from
wasting: inte the stream,

This can be prevented hy
Construction of a dyke and if
hecessary, riprap or pithions
fo protect the fil} from being
eroded into the river.

Away feo waterways,
dump areas should be
stabilized by contouring of
Nanting, and ail i

Yearly aumicipst permits
which expite March 1 exch
year, inst be cbtained hy
companies mining pravel in
the municipality.

Moweser, cestrir tone on the
Tenesal of these permits do
fel at present control the
Ricthod by bich the com.
pantes mine, or the
destruction they could caure,

Zone conteals Ure sire af
Rravel operations and the area
Urey can be carrie out in, and
the municipality hes controt
of the access read lo these
operations.

Coquitlain Mayor Jin Tons
aald the municipality Is
louking for ways of preventing
this present discharge ef

sit into the river.

Paramount concern,

“The sulicitor is teokins af
the bylaws now to try and find
ways of linproving the present

feMoraners teers repert
On De matter, antswe title
be tabled toc craueil at
Monday night's ineetung.