o Envi é
He Canada Canada
Enaronnental Protection ce
Protection YErvronnement
1090 Kest Pender,
ard Floor,

Vancouver 1, 8.C. duly 14, 1972.

Hr. &. Palmer,

Simon Fraser Health Unit,
2266 Wilson,

Port Coquitlam, B.C.

Dear Mr. Palmer:

Please forgive the delay in sending you the results of the analyses
perfomed on the fish and water samples which you supplied us from a
tributary to the Pitt River.

The following are the results of the water sample analyses:

, RESULTS

<.01 mg/?

Also attached ts a copy of the biological examination report.
Based on the results of the water sample analyses and the biological
examination, no definite cause of death can be established. ATi one
can surmise is that the creek experienced a sudden shock leading of
@ toxic substance.

Concerning this matter, this Department is keeping a close
surveillance over the creek in order to detect any changes in its
water quality. Any future findings will be forwarded to you. In the
interim, if you have any questions regarding the above results please

do not hesitate to contact me at 666-3858.
Yours very truly,

Soy le

D. “»yatte,
Bioloyist.

MEMORANDUM NOTE SE SERVICE

GCOVIRANGMT OF CANADA GOUVERNRIAENT DY CANADA

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J i May 27,2972_

Rxasination of trout fousd deed in a omsll tributary of the Pitt River

_ On che 15/5/72 twelve fish vere delivered to the biology lab. st
Cypress Creek by Raulf Paluer of Public Health. ‘The fish had been found
Gaad spproximtely tvo veeke prior to delivery and froren. They were
found in a ssall strena which fless under Argue street near the jyaction of the
PLee and Fraser rivers. ‘Tne fich vere identified and examined dy the .
undersigned and technician Don DeMill. .

Gheexvations - Moat of the fish were identified a3 eutthroat trout,
Salvo clark! clarki vith two or three rainbow trout, Saleo patrdnert
aad one unidentiized fry. The fish hed been dead approxirately ons
day before baing frozen. The fish vere examined for physical Janage
ead a1} were found to hava a hole in the body vall below the right
pectoral fin. The gills appeared normal. Stomach contents fron
two of the estthroat trout contained Lsopode (Onisceidea), wyrispods,
wmall gastropods, a2 oligochaste, and esverel diptera larvae.

Comments - The dasaga to the body wall was probably due to bursting after death ov <. wou.
a8 @ result of seid aod enryne action from the pyloric cacese which *
die rear the scasttive area of body wall below the pectoral fins.
The etrece in whieh the fish were found flows through 6 cenent works

and therefore cay bava baea edustic. The fish were re-frozen for
forcre observation,

AL Rel,

nines np ms AMP PW Be ecmes