pelican lake enhancement project report on bearing by the manitoba

PELICAN LAKE ENHANCEMENT PROJECT
REPORT ON BEARING BY
THE MANITOBA CLEAN ENVIRONMENT COMMISSION
MARCH, 1990
JUNE 1990
TABLE OF CONTENTS
BACKGROUND
1
TEE PROPOSAL
Prank Penner
5
INPUT FROM PELICAN LAKE USERS
Jessie Low
Greg Sholdra
Dale Berry
Rod Stephenson
Michael Taylor
John McLelland
Doreen Moggey
Edward Crawford
David Stewart
Jack Yellowlees
Bill Cole
Roy Woolsey
Helen Riesberry
Gordon Henderson
Ron Chalmers
Ron McCullough
19
20
20
20
20
21
21
22
22
23
24
24
24
24
25
25
INPUT FROM DOWNSTREAM INTERESTS
Liz Dickson
Moir Thompson
Ward Snyder
Roy McLaren
Jake Harms
Bob Avery
Keith Southam
Dora Southam
Jim Bell
Bob Crayston
Norbert Van Deynze
Alex McWilliams
25
25
26
26
26
26
27
27
27
31
31
31
r
JURISDICTIONAL/ENVIRONMENTAL CONCERNS
Joe Dolecki
Gerald McKinnev
Eric Geddes
Duncdn SLewart
Gordon Goldsborough
32
32
32
33
33
LOCAL GOVERNMENT INPUT
Shane Box
Howard Nixon
Wayne Nichol
John Stillwell
34
34
34
34
PROVINCIAL GOVERNMENT INPUT
Fisheries Branch
William Howard
35
Environment Department
Al Beck
CORRESPONDENCE FOLLOWING TUE HEARING
42
47
DISCUSSION
52
CONCLUSIONS
RECOMMENDATIONS
APPENDIX I
38
—
List of Exhibits and Presentations
58
61
I
C-
PELICAN LAKE ENHANCEMENT PROJECT
BACKGROUND
A proposal was filed on August 15,
1989 under the Manitoba
Environment Act by the Water Resources Branch of the Manitoba Department of
Natural Resources for the construction of water control works which would
allow regulation of Pelican Lake water levels.
Severe fluctuations in water
levels caused by year to year variations in the regional climate adversely
affect recreational use of the lake at very low levels and cause property
damage at very high levels.
On the premise that sufficient water can be
borrowed from the Pembina River,
the proposed works have been designed to
reduce the magnitude of both high and low water levels historically
experienced in Pelican Lake,
and to maintain water levels as close as possible
to a target level based on long term mean lake water levels.
Pelican Lake is a shallow, elongated basin located in the Pembina
Valley
(see Figure 1A).
Manitoba,
Cutting deep into the prairie of southwestern
the Pembina Valley was formed by eastward flowing glacial meltwaters
at the end of the last ice age and the resulting trench dwarfs the present day
streams which now flow through it.
The Souris River now flows down part of
this ancient channel but exits the valley some twenty kilometres
Pelican Lake draining northward into the Assiniboine River.
three small lakes above it (Bone,
upstream” of
Pelican Lake and
Overend and Grassy lakes) are dependent on
runoff from a local drainage basin of approximately 690 Km
2 for all
inflows.
Below Pelican Lake,
the Pembina River enters the valley and is
joined by the outlet from Pelican Lake before flowing into Lorne Lake.
1B)
The Pembina River continues down the valley,
(Figure
broadening at points to form
Louise, Rock and Swan Lakes where sediments deposited by inflowing tributaries
have formed natural dams.
southern Manitoba,
The Pembina River continues down the valley, across
and into the United States near Windygates.
From there the
EEZ
—
RGE. 17W.
RGE. 16W.
PSE. 15W.
RGE. 14W.
RGE. 13W
PSE. 12W.
HGE. 16 W
a
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RGE. 15 W
I
gure
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Manitoba
Natural Resources
Water Resources
lB.
LOCATION PLAN OF PELICAN LAKE
ENHANCEMENT PROJECT
U.T.M. CO-OR. ZONE 14
A PPJ! DV!
SCAI-C
At IHOWN
jDATE
I
89 07 20
5455200 N TO 5457800 N
465700E
T0468100E
Intl No.
ISHCIT
14—9—1047
I
I
(4)
Background (cant.
of the ancient valley,
river flows beyond the end
the Red River.
valley and finally joins
across the flat Red River
ly shallow, with a mean depth of 3.96
Pelican Lake itself is relative
ation of 411.48
5.33 metres (at a surface elev
metres and a maximum depth of
, oriented on a NW/SE axis, and
The lake is about 20 Km long
metres a.s.l.)
d on the
Recreational activities centere
.
2
has a surface area of 26.3 Km
Otherwise, land use in
. boating and angling.
lake include cottaging, swimming
hay, pasture,
lands adjacent to the valley with
the area is agricultural on
Activities along
r parts of the valley bottom.
and some cereal crops in drie
Pelican Lake are similar.
the valley downstream of
both
level of Pelican Lake and improve
Control works to regulate the
were
ditions historically experienced
the high and low water level con
damaged by severe
first World War but these were
constructed shortly after the
, and are now
have since further deteriorated
flooding shortly thereafter,
largely inoperative.
rtment
istered with the Environment Depa
Numberous responses were reg
s Branch was
submitted by the Water Resource
after a summary of the proposal
Glen
Accordingly, the Honourable J.
Act.
advertised under the Environment
mber 13, 1989,
ronment, in a letter dated Dece
Cummings, Minister of the Envi
lic hearing on the
ronment Commission hold a pub
requested that the Clean Envi
mmendations.
ide him with a report and reco
Licence application and prov
Thursday, March 8, 1990 at 10:30
A public hearing was convened on
that evening
Ninette, Manitoba and reconvened
ann. at the Centennial Hall in
the
Commissioners in attendance at
don, Manitoba.
at the Royal Oak Inn, Bran
Mr. Ed Gramiak; Ms. Joan
Mr. Stan tagleton, Chairperson;
hearing were:
Vestby; and Dr. Barrie Webster.
(5)
TEE PROPOSAL
Mr.
Frank Penner,
Water Resources Branch,
P.
Eng.
,
Head of the Special Services Section.
Manitoba Department of Natural Resources provided a
description of the proposal.
He said that both high water
levels and low
water levels have been problems at Pelican Lake over the years.
The Water
Resources Branch has accumulated a thick file of complaints about both high
and low water levels.
The proposed regulation would compress the range of
water level fluctuation from 2 metres to about 1.3 metres.
High water levels
would be reduced through the operation of an improved outlet channel from
Pelican Lake utilizing a gated control structure.
Anticipated low water
levels would be raised by diverting a portion of the available spring flows
from the Penibina River
into Pelican Lake.
The mean target level for the lake
would remain similar to the long term mean lake level.
The proposed project is essentially a refurbishment and
improvement
of the badly deteriorated system of previously constructed control works,
In
1919 a control dam on the Pembina River and diversion channel into the lake
were constructed in response to a drought period that began in 1912.
after construction,
shortly
the dam was damaged by floodwaters in the Pembina River
and was subsequently abandoned.
The diversion channel has also deteriorated
through siltation and lack of maintenance over the years.
The Pelican Lake Level Advisory Committee completed a study of lake
regulation schemes in 1972 and in their report recommended that lake levels be
regulated to the extent possible in the range of 411.78 to 411.94 metres above
sea level
(a.s.l.) during the recreation season utilizing the existing Pembina
River diversion and constructing a new stop—log control structure on the
natural outlet of the lake.
recommendations.
No action was taken on the Advisory Committee’s
(6)
Proposal
(cont.)
F.
In
1980 the Watet
Resources
Btan ii conducted a
eview of the
1972
report and proposed that lake levels would best be controlled by providing
both inlet and outlet works to moderate both high and low levels.
A 1981
addendum to the 1980 review proposed the combining of the inlet and outlet
works near the lake to minimize disruption of existing recreational
development adjacent to the natural outlet and to reduce maintenance and
construction costs of the proposed regulatory works.
The Pelican Lake Enhancement Project now proposed (see Figures
lB
and 2) would provide the capability to regulate levels on Pelican Lake to a
target level in the range of 411.48 to 411.94 metres.
Mr. Penner said that
upgrading and reconstruction of inlet and outlet components would be required,
and that the works would be operated to meet several needs.
The primary
effects from the project will be on Pelican Lake with lesser effects on Lorne
and Louise lakes, and with some minor effects on Rock Lake.
The proposed inlet works include the construction of a fixed crest
weir in the Pembina River to raise river water levels during periods of low
flow and allow water to flow down the existing diversion channel to Pelican
Lake.
/s of base flow
3
A 500 mm diameter pipe in the weir will allow 0.4 m
to continue down the Pembina River at all times when this flow in the river
exists.
The weir is to be a 1.8 metre high dam across the river with steel
sheet piling and rock infill on either side.
Mr.
Penner said that this type
of structure has been used extensively in Manitoba with great success.
not subject to blocking by debris,
It is
is not highly sensitive to soil conditions
and does not require a firm foundation.
The weir is designed to be able to
/s, with provision for a
3
divert Pembina River flow up to a maximum of 9.0 m
minimum 0.4 m
/s base flow.
3
There will be no perceptible drop in water
surface across the weir at high flows which would cause the weir to
drown
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32
‘/
.1
(8)
Proposal
(cont.)
II
out’.
Mr.
ture would not he
PenneL was coniNdent that the pronosed struc
damaged by very high floodwaters.
gates to regulate diverted
A culvert control structure with slide
ure 2) to replace a similar existing
inflows will be constructed at A (Fig
at B (Figure 2) to replace an
A culvert crossing will be installed
structure.
Reconstruction of the existing diversion
.
existing bridge over the diversion
of dykes to increase channel capacity to
channel will include the construction
s.
0.3 in below the top of the lowest dyke
9 m
/s when the water surface is
3
Pembina River, 0.4
Provided there is available flow in the
With the water level at
in the welt.
will pass downstream through the pipe
4 rn), and with the slide gates, installed
the crest of the weir (elevation 413.
/s would flow into Pelican Lake.
3
, 5.5 m
in the diversion channel, wide open
At
rsion.
/s will not be available for dive
3
There will be years when 5.5 m
/s.
3
rt all of the flow above 0.4 m
those times it will be possible to dive
/s, as this flow
3
s are less than 0.3 m
Water will not be diverted if flow
base of the weir.
would pass through the pipe in the
/s, a
3
greater than 5.9 m
When Pembina River flow at the weir is
flow over the weir and the flow would
portion of the water would start to
Mr. Penner pointed out
Pembina River.
divide between the diversion and the
nstream impacts, that water will
that it is significant, in terms of dow
/s
3
As much as 9.0 m
and low flows.
continue to pass the weir at both high
/s or
3
Pembina River is at 20.4 m
can be diverted if the flow in the
If high inflows
down the river.
The undiverted flow would continue
greater.
desirable, inflow can be reduced by
to Pelican Lake are not considered
A (Figure 2).
partially closing the slide gates at
of the existing Pelican Lake
Outlet works include the relocation
nel with the diversion inlet for a short
outlet by combining the outlet chan
age way along the north road of
distance and constructing a new drain
Mr. Penner stated
stream channel.
SW 5—4—15 W to join up with the natural
(9)
Proposal
(cont.)
that advantages ot relocating
the outlet were that it would
minimize
disruption to existing develop
ments, reduce the number of
bridges and
culverts, and reduce channel mai
ntenance requirements.
Five acres (2 ha) of
land will have to be purchased
for the combined channel.
The existinq Pelican
Lake outlet has not been in a natu
ral condition for many years
and presently
consists basically of two
culverts placed high enough
to maintain lake water
levels.
A separated inlet and outlet, suc
h as now exists, provides litt
le
circulation of lake water,
so that benefits from circulation
will not be lost
through the construction of
a combined channel.
Slide gates will be installed
in a culvert control structure
at C
(Figure 2) to regulate outflow
from Pelican Lake where the out
let channel
exits from the combined channe
l.
The rate of outflow will depend
on the water
level in Pelican Lake.
When the gates are open outflow
could range from 5.5
at a water level of 411.63 m. to
11.0 m
/s at 412.60 in.
3
Some
localized flooding could occ
ur when the outflow is 11.0 m
/s, although flows
3
could be reduced by partially
closing the gates to preven
t such flooding.
It is proposed to re—align the
stream channel at U (Fiqure
2) above
the crossing of Provincial
Road 253.
This portion of channel will
be
straightened to minimize disrupt
ion of existing developmen
ts and to reduce
land requirements.
Between PR 253 and Lorne Lake
, the outflow will follow the
existing channel at E (Figure
2), which will be ‘cleaned out
’ to facilitate
flow.
Existing culverts at the PR
253 crossing at F (Figure 2)
will be
replaced.
Mr. Penner also said that an
option that is being conside
red is the
construction of diversion cha
nnels at G (Figure 2) and dykes
to separate the
outlet channel from the Pembina
River above Lorne Lake.
This would be done
because the Pembina River carries
considerable sediment which
is deposited in
the river at a location just
before the river joins the out
let channel.
Sediment deposits block the cha
nnels.
Flow from Pelican Lake spills out
10
Proposal
(cont.
The
g the junction.
t vaLley bottom when reachin
across the relatively fla
outlet channel
ld be constructed to ensure the
wou
s
dyke
and
ls
nne
cha
al
option
harge directly to
w Pelican Lake releases to disc
remains clear and would allo
Lake would then be essentially
Flows released from Pelican
Lame Lake.
remain unblocked.
nnel from Pelican Lake would
cha
the
and
free
nt
ime
sed
scenario
posal utilizing the ooerating
Mr. Penner evaluated the pro
The period
er flows.
data and actual recorded wat
calculated from the design
h information
e these are the years for whic
chosen was from 1962 to 1988, sinc
ld
were calculated as they wou
Water levels for Pelican Lake
is available.
The operating regime, used in
in place.
have been if the project had been
trols would have been
was that the structure con
this modelling exercise,
ld be
Every morning water levels wou
October.
operated daily from April to
water, up to
the target level, available
w
belo
was
Lake
ican
Pel
If
checked.
et
If Pelican Lake was above targ
3
d into the lake.
5.5 in /s, would be diverte
applied
This set of rules was rigorously
/s would be released.
3
level, 5.5 m
d was prepared
Graphs of the results obtaine
s.
in completing the calculation
rded average
regulated model and actual reco
the
een
betw
ce
eren
diff
the
showing
were
Mr. Penner said that there
s 3A, 35, 3C).
monthly levels (see Figure
es.
than the listed monthly averag
daily peaks slightly higher
ion are predicted to be
the water levels with regulat
Pelican Lake
target, with the exception that
within 0.3 in of the 411.78 in
d drought conditions
target as a result of extende
this
w
belo
p
dro
l
wil
ls
leve
hout the project).
less than that occurring wit
(although the drop would be
In general
over a dry
ls stabilize at 408 in a.s.1.
Lorne and Louise lake leve
augmented by
the levels of the lakes are
Mr. Penner suspected that
year.
s may result in sub—soil
lower elevation of these lake
‘The
.
ngs
spri
from
er
wat
Lake could be used to
Water released from Pelican
seepage from Pelican Lake.
desirable.
e and Louise lakes, if
maintain water levels in Lorn
411.6
411.8
412.0
IA’
I—
410.6
410.8
411.0
411.2
= 411.4
z
0
z
-J
IA’
-3
laY
0
z
t
12
I
C,,
412.2
412.4
412. 6
412.8
I 962
Fiure 3A.
I 963
1965
1966
a.-
1967
Ar
1968
ir
1969
I 970
.:r r’ L..
1
Actual recorded levels of Pelican Lake C
) near Nnette and
calculated level if regulation as proposed had been in place (
1964
—
tZ
1971
Er’
0.3 in
411.78
0.3
411.9
472.0
us
-C
a
0
t
I
a
-J
-j
• (is
410.6
410.8
477.0
477.2
411.4
us 411.6
-C
0
a
t
us
us
‘I,
4)2.2
412.4
412.6
412-8
1972
1974
1976
1977
1978
1979
-
—
jb....
r
-L
—-
I 980
near Ninette ahd
Figure 38. Actual recorded levels of Pelican LakeposC ed had) been in place (
calculated level if regulation as pro
973
7975
-
—.
7967
.
m
411.78
m
j
‘C
La
‘C
z
C
0
r
-J
U
La
-J
z
0
z
C
La
La
410.6
410.9
411.0
417.2
471.4
417 .6
41 I.e
472.0
472.2
472.4
472.6
472.9
7982
7984
7985
7986
..Wa
1987
h4b*S
7988
wo...r
IC’
t
4
Figure 3C. Actual recorded levels of
Pelican Lake ( —) near Ninette and
calculated level if regulation as proposed
had been in place (
1983
.
—
.
C 14
Proposal (cont.)
the target level throughout the
Rock Lake has maintained or exceeded
a stop—log dam below
The Water Resources Branch maintains
period of record.
developed that
(instream from this dam a sandbar has
the outlet of Rock rake.
target established by Water Resources.
sometimes raises lake levels above the
been above the target level, although
Even in dry years Rock Lake levels have
.
Mr. Penner said that Rock Lake is
overflow may not have occurred in 1988
a
larger drainage area which results in
smaller than Pelican Lake but has a
ld reduce
Any reduction in flow to Rock Lake wou
different set of dynamics.
not the level of the lake itself.
the flow downstream of the lake but
inflow into Rock Lake comes from
Approximately 25% of the measured
The balance of the flow is derived from
.
the Pembina River above Lorne Lake
des an important drainage segment from
the Badger Creek watershed which inclu
Mr. Penner’s
h Dakota.
Badger Creek has its headwater in Nort
the Long River.
ld be
the total inflow into Rock Lake wou
conclusion was that only 15 to 20% of
ent Project.
affected by the Pelican Lake Enhancem
Pelican Lake could augment
During low flow periods, releases from
A reduction in
wildlife or agriculture.
Pembina River flows when desired for
, released over a three month period,
water level of 0.1 in in Pelican Lake
In the fall, the
/s.
3
t channel of 0.3 m
would provide a flow down the outle
/s; therefore,
3
the outlet can be 0.1 m
average flow of the Pembina River at
The flow below
fits would be significant.
the potential flow enhancement bene
/s in September.
3
Rock Lake averages only about 0.3 1n
As a
be provided by the project.
Downstream flood control could also
during April. following the spring
rule, maximum flows usually occur
rted into Pelican Lake
/s of floodwaters could be dive
3
Up to 9 rn
snowmelt.
Diverted water could be temporarily
nstream.
to minimize peak flood levels dow
waters
to three weeks and released after flood
stored in Pelican lake for two
recede.
1
15
Proposal
(cant.)
Water quality in Pelican Lake var
ies somewhat during the year.
Limited water quality data supp
orts the suggestion that the
hardness decreases
as the lake level increases.
Another constituent, phosphor
us, which
contributes to algae growth, also
varies throughout the year with
the highest
levels occurring during the summer.
The limited data base shows that
higher
phosphorus levels seem to occur
when water levels are high.
Mr. Penner stated
that, although the data availab
le are limited, both hardness
and phosphorus
levels in the Pembina River are
slightly higher than in Pelican
Lake.
Chlorophyll A, a narameter used
to estimate algae levels, is
highest
in September.
This parameter is weakly related
to water levels, with
chlorophyll A tending to be lower
when water levels are highes
t.
Bacteria do
not appear to be a problem in Pel
ican Lake, and Mr. Penner said
that the
project would not affect this para
meter.
In general,
Pembina River water quality wil
l not be adversely
impacted by any releases from Pel
ican Lake following constructio
n of the
proposed project.
Water released from Pelican Lake will,
be of equal quality to that
in
Lorne and Louise lakes.
Mr. Penner said that some algae
from Pelican Lake
might conceivably be carried downstre
am.
Algae that reaches these lakes
could
decompose and possibly deplete wint
er oxygen supplies.
Mr. Penner said that
because these lakes winter—kill
in any case, this would not crea
te a problem.
The impact on the fishery in Pelican
Lake resulting from the project
was expected by Mr. Penner to be smal
l and positive.
Any reductions in summer
algae production that may result
from higher water levels would
mean a modest
improvement in the winter oxygen supp
ly.
The small increase in lake volu
me
will increase the oxygen storage cap
acity slightly.
These two factors should
reduce the winter fish kill.
Further benefits could be obta
ined in times of
zero flow in the Pembina River if
water is released from Pelican
Lake to allow
16
Proposal
(cont.)
ise lakes to Pock Lake.
return from Lotne and Lou
spawning Northern pike to
in marshes at the north
ld be that spawning habitat
t
wou
efi
ben
st
ate
gre
The
water levels, would he
sently dry because of low
end of Pelican Lake, pre
re—flooded.
established
a Wildlife Management Area
Upstream of Ninette there is
should
Wildlife habitat in this area
.
ces
our
Res
l
ura
Nat
of
ent
by the Departm
ican Lake.
ance of water levels in Pel
be improved by the mainten
e to the
ey identified one site clos
An archeological field surv
posed works.
not be disturbed by the pro
project, but this site would
ed in greater
ered species were scrutiniz
Effects on rare or endang
No
vegetation.
populations of wildlife and
detail than effects on general
It was
species.
on endangered animal or bird
effects are anticipated
effects on rate plant
e that there could be some
considered to be possibl
low water levels,
lakes area as a result of
ise
Lou
and
ne
Lor
the
species in
ur in that area and the
t low water levels already occ
but Mr. Penner said tha
nstream levels.
project should improve dow
ources Branch was
Penner said that the Water Res
Act to
the Manitoba Environment
seeking a licence under
In conclusion, Mr.
1.
2.
3.
itled
ally as shown on the plan ent
Construct works substanti
g Project
Project, Site Plan Showin
“Pelican Lake Enhancement
27;
OSOA. Revision Date 90—02—
Components” File No. l4—9—1
l in the
ican Lake to a target leve
To regulate the level of Pel
range 411.48 to 411.94 metres;
a River into
s water from the Pembin
m
/
To divert up to 9 3
when the Pembina
No diversion is to be made
3
Pelican Lake.
0.3 in 5;
than
s
les
is
Lake
ne
Lot
ve
River flow at PR 253 abo
17
Proposal (cont.)
4.
To release up to 11 3
m
/
s water from Pelican Lake to Lorne
Lake.
No release is to be made when the flow
in the Pembina
River at PP 253 above Lame Lake exce
eds 20 m
/s.
3
Pelican
Lake releases would be controlled so
that the release flow plus
the flow in the Pembina River at PR 253
above Lorne Lake does
not exceed 20
S.
To divert water into the lake,
release water from the lake and
to regulate the level of the lake within
the specified limits
having regard to the resources of Pelican
Lake, Lorne Lake,
Louise Lake, and Rock Lake and of the
areas surrounding the
lakes which are affected by the lakes
.
In order to advise the
Water Resources Branch on the optimum oper
ation of the project,
a standing Pelican Lake Advisory Committe
e with representation
of municipal officials, local landowners,
cottage owners and
fish and wildlife specialists, is prop
osed to be established.
The Advisory Committee would meet at
least annually.
Mr.
Penner said that details concerning the
establishment of an
Advisory Committee and its terms of refer
ence have not been determined.
The
Commission’s advice was being sought on
this matter.
There already is an
informal Advisory Committee operating to advi
se on the present proposal but a
new committee providing advice on the proje
ct operation should be more
formally structured.
Membership on the present Committee inclu
des municipal
officials, cottage owners, and farmers.
The proposed control structures could be
operated to achieve a
variety of desired effects, so it is impo
rtant to have local input to the
Committee, repres
ny a variety of local interests.
Flow forecasting
information would
important in guiding decisions.
Mr. Penner suggested
that membership on the Committee could be
for a set term by appointment of the
Minister.
Potential appointees might be nominate
d or suggested to the
18
1
Proposal
(cont.)
Costs of the CoinTuittee might be funded by
Minister by various organizations.
involve a lot of
The Committee’s operation likely would not
the government.
Ii
to meet once or twice a year.
expense as the Committee might only need
In response to a request,
Mr. Penner outlined the specific changes to
1989 edition of the report to the February
the proposal made from the December
l had been raised to
The proposed level of the diversion channe
1990 edition.
Partly to accommodate the raised channel,
reduce the excavation requirment.
the weir was widened.
level.
The new design
m water
The new weir configuration reduces the upstrea
flow culvert
also includes a 500 mm diameter low
through the Pembina River weir.
Culverts in the diversion channel were
There
/s could be conveyed.
3
flow of 9 rn
enlarged to ensure that a maximum
erts, and the width of the channels
have been some minor changes to other culv
Most of the changes
about one metre.
in some sections has been adjusted by
that they do not significantly
are design refinements, and Mr. Penner said
proposed water control works.
change the capability or function of the
oration losses from
When questioned about possible increases in evap
Mr. Penner said that evaporation from
Pelican Lake, due to increased storage,
the project, since the surface
Pelican Lake would be constant with or without
area would not change materially.
the subject of a number of
Downstream impacts from the project were
Lake would be very
Mr. Penner stated that the effects at Rock
questions.
impacts at Rock Lake, it
Using 1977 streamf low data to model potential
small.
would be about 2.5 cm (one inch)
was determined that the peak lake level
would be reduced by about 1% in
lower, and that peak outflow from Rock Lake
The Pembina River
ler.
Below Pock Lake the effects are even smal
that year.
e area in the reach of the river
above PR 253 is only 12% of the total drainag
ately
The international boundary is approxim
to a point below Crystal Creek.
Mr. Penner said that the
an Lake.
160 river kilometres downstream of Pelic
small drainage area in the upstream
proposal would affect only a relatively
r
1
19
Proposal (cont.)
end of the river basin and tha
t at the United States bou
ndary the effects are
very small.
Usually there are two spr
ing flood peaks at the
border, the first
from local cunoff and the sec
ond peak caused by runoff
from the upstream
lakes.
It is the second peak tha
t would be marginally aff
ected.
Mr. Penner
said that his department
was going to undertake som
e additional analysis of
the effects of the proposed
project to the river flow
downstream to the
border.
In his view, since the eff
ects are very small, they
are difficult to
define.
Mr. Penner said that,
in his opinion, the effect
s to farmers
downstream of the project
would be beneficial.
The proposed Advisory
Committee would be respon
sible for determining flow
release patterns to and
from Pelican Lake.
Basically, in wet years
water could be stored in
Pelican
Lake and in dry years
river flow could be augmen
ted by water released from
the
lake.
Overall, downstream farm
ers would get essentially
the same amount of
water flow but it would be
possible to enhance flow
at times when this would
provide mote benefit.
Total construction cos
t for the project is bud
geted at $600,000.
Half of this amount will
be contributed by the fed
eral government under the
?gri—Food agreement.
Mr. Penner did not have
figures available for ann
ual
maintenance and operating
costs, but said that these
costs would be the
responsibility of the
provincial government.
INPUT FROM PELICAN LAKE
USERS
Ms. Jessie Lowe, a res
ident of Ninette did not
expect that regulated
levels would improve water
quality, but she was ver
y concerned about lake
levels.
It was her opinion that lake
levels were directly relate
d to aquifer
levels and she said tha
t many wells in Ninette wer
e drying up.
Ms. Lowe said
that seniors had their
lifes savings invested in
retirement homes, but
without water the homes
would have no value.
1
20
Pelican Lake Users
(cont.)
conditions
r. said that water
ge
tta
co
ke
La
an
a Pelic
Mr. Greg Shoidra,
to improve them.
supported efforts
he
and
d,
te
ra
ve deterio
in the lake ha
Beach Camp, said
of the Manhattan
tor
rec
Di
ve
uti
ec
Mr. Dale Berry, Ex
l
of the Pentecosta
District Executive
the
th
wi
ng
alo
n
The camp has
t.
that his organizatio
enhancement projec
sed
po
pro
the
ort
pp
nada su
h
Assemblies of Ca
of the largest churc
50 years and is one
for
ke
La
an
lic
Pe
d
been located on
s and families, an
for all age group
ed
vid
pro
are
s
ram
Prog
.
d that
camps in Manitoba
Concern was expresse
urch groups.
ch
r
he
ot
to
ted
.
facilities are ren
continues to dry up
iled if the lake
rta
cu
be
uld
wo
caitp
lp immensely
attendance at the
bina River would he
Pem
the
m
fro
d
rte
at water dive
Mr. Berry said th
disaster.
autiful lake from
to protect the be
icipality, said that
of Strathcona Mun
t
en
sid
re
a
,
on
Mr. Rod Stephens
ities centered
Recreation activ
ent project.
em
nc
ha
en
the
of
he was in favour
The number of
for the region.
se
ba
ic
om
on
ec
vide an
He said
around the lake pro
since the 1970’s.
ed
in
cl
de
s
ha
coming to Ninette
?unerican tourists
owners pay close to
the lake and the
d
un
aro
d
ate
loc
cottages
ipalities.
there are 976
surrounding munic
es to the three
tax
l
ipa
nic
mu
ners.
$0.75 million in
is for cottage ow
ctors in the area
ra
nt
co
l
ca
lo
by
done
Most of the work
n,
resident of Brando
Lake cottager and
an
lic
Pe
a
r,
ylo
Dr. Michael Ta
lican Lake Yacht
on behalf of the Pe
t
ec
oj
pr
t
en
em
of the enhanc
ts have
spoke in favour
functions and even
sential for club
es
are
ls
ve
le
Adequate water
launching and
Club.
ing difficulties in
lud
inc
ls,
ve
le
by low water
been handicapped
city of the lake to
e the overall capa
uc
red
ls
ve
le
Low
in tourism
recovering boats.
ylor said the decline
Ta
.
Dr
y.
str
du
tourist in
contribute to the
levels, should be
with lowered lake
al
nt
de
ci
in
co
s,
year
a natural
over the past few
a have not been in
are
g
din
un
rro
su
The lake and
he
cause for alarm.
l development, and
nt of agricultura
ve
ad
the
ce
sin
years,
ges.
condition for 100
ir these past dama
are made to repa
rts
fo
ef
e
tim
is
concluded that it
r
r
21
Pelican Lake Users
Mr.
(cant.
John McLelland spoke on behalf of the Board of the Ninette and
District Centennial Hall Inc.
Enhancement Project.
which is in full support of the Pelican Lake
It is their opinion that significant and positive
effects could be realized by the project.
All areas of southwestern Manitoba
need to improve water conservation practices as soon as possible.
An Advisory
Committee with representation from the area could advise on optimum
use of the
project and ensure ongoing protection of the environment.
It is important
that the water table be maintained,
uses.
as well as water for farm and recreational
McLelland also said that it was his personal opinion that the lake
Mr.
was a beautiful asset to the area, but that if it is not maintained
and
improved,
residents could end up losing this benefit and having to move away.
Dr.
Doreen Moggev,
Development Corporation Inc.
President of the Ninette
.
—
Pelican Lake
said that this organization supports the project
and believes that it will enhance the environment.
Recent drought years
highlight the need to conserve water in natural reservoirs.
Past drainage of
pot holes and land clearing have reduced the ability of the land to retain
winter snow and hence run—off,
and we are now suffering the consequences.
Development Corporation estimates at least 50% of Ninette residences,
which has its own well,
each of
are having trouble with very low water or dry wells.
If the water table continues to drop,
a water
The
Ninette will have to consider installing
reservoir and distribution system.
Higher water levels in Pelican
Lake could reduce groundwater problems.
Pelican Lake is surrounded by fragile shale banks,
water levels remain very high during the summer months,
occurs,
causing tree loss and cottage damage.
essential.
environment.
and at times when
serious bank erosion
A method of water control
is
Both very high and very low water levels are damaging to the
The control of water levels in an intermediate range would
enhance everyone’s environment.
The storing of spring run—off to help prevent
downstream flooding would also be a worthwhile benefit,
Development Corporation.
in the opinion of the
22
Pelican Lake Users (cont.)
n
Id
to be lowest in the south
Dr. Moggey noted that oxygen levels tend
re the ice is
Since the Pembina River begins to run befo
end of Pelican Lake.
t
oxygenated river water into the rake migh
off the lake, the ability to divert
reduce fish kills.
judicious operation of control
The Corporation believes that, through
A
d achieve optimal benefits.
structures, the Advisory Committee coul
Water
downstream residents of water.
management plan should not deprive
fish fry in Lorne and Louise lakes an
releases later in the spring could give
Since Pelican Lake is a natural reservoir,
opportunity to reach Rock Lake.
l
require the flooding of any additiona
its use for water storage will not
d with water conservation projects.
land, a major drawback often associate
boost
ity of life in the valley, and the
Water management will enhance the qual
much needed economic diversification.
to the tourism industry will provide
ct on behalf of the
Edward Crawford spoke in favour of the proje
ully protected,
Water is a resource that must be caref
Ninette Community Club.
Club that the enhancement project is
and it is the opinion of the Community
s are
Mr. Crawford observed that algae level
one step in achieving that goal.
m, and this flow action will help
reduced when lake water flows down a strea
Mr.
maintain downstream water quality.
university
a retired medical doctor and former
He
.
the Ninette area for much of his life
professor, has been a resident of
project for four main reasons.
said that he was opposed to the
Dr. David Stewart,
1)
r diversion did not
Stewart said that the 1919 Pembina Rive
ined throughout
Low water levels began in 1912 and rema
work.
At that time Dr. Stewart recalled grass
the early 1920’s.
sed lake bottom 100 metres
growing around the periphery on expo
The lake level rose
or more from the present shoreline.
This same flood
.
dramatically after spring floods in 1927
Dr.
2
1 23
Pelican Lake Users Icont.)
washed out the control structures, and so the diverte
d Pembina
River inflows did not contribute much to this
increase in water
level.
2)
Data for lake levels and Pembina River flows collect
ed from
1962—1988 show that when the flow in the river
is great enough
to affect the lake level appreciably the lake is already
high,
and when the lake is low,
3)
river flows are also low.
The bottom of the valley consists of alluvial soils,
which Dr.
Stewart said are unstable and not suitable for founda
tions or
for use as construction materials.
Structures built on these
soils will not withstand major floods and channels
will be
prone to constant slumping.
4)
The environmental assessment is,
inadequate.
in Dr. Stewart’s opinion,
Questions and concerns about impacts to downs
tream
water quality and quantity, waterfowl and fisheries
need to be
further studied.
In conclusion,
Dr. Stewart said that in his experience, Pelican
Lake
undergoes natural long term cycles of high and low
water level phases.
In his
view and experience, a repetition of the diversion exoerim
ent will be a waste
of money.
The lake level will come up with or without the diversi
on when
conditions are right.
In the meantime any constructed works will be unstab
le,
prone to flood damage and will require considerable
maintenance.
The
diversion may have serious consequences downstream
through reductions in water
quantity and quality.
Dr. Stewart said the project should be abandoned.
fir. Jack Yellowlees, a cottage oi.mer, said the propos
ed enhancement
project is essentially the same scheme requested by cottage
owners twenty
years ago.
Extreme fluctuations in water levels are undesirable,
and the
project would reduce the range of levels.
He supports the project.
24
Pelican Lake Users
Mr.
Association.
(cant.
Wildlife
Bill Cole spoke on behalf of the Tiger Hills
surrounding areas,
Comprised of members from Ninette, Dunrea and
ct.
the Association supports the enhancement proje
Roy Woolsey,
and Area Lions Club.
the Ninette
spoke in favour of the project on behalf of
the
There has been too much human intervention around
lake to now let nature take its course.
Low water levels and excessive algae
other surrounding communities.
in Pelican Lake are affecting Ninette and
and will likely seek out
White Pelicans are otherwise not common in the area,
In the fall of 1989, many
ined.
other habitat if water levels are not mainta
one of the few
water bodies in the region were dry and Pelican Lake was
Without intervention this
owl.
staging areas available for migrating waterf
other wildlife could be lost.
valuable habitat for waterfowl, fish and
Pelican
a cottager, spoke about the beauty of
rations of her family and many
Lake and what the lake has meant to three gene
Canada, Ms. Riesberry is
Although she has travelled to many parts of
friends.
Present low water levels concern
always glad to come home to Pelican Lake.
If
Lake is now an endangered space.
her, and Ms. Riesberry said that Pelican
be no habitat for any species,
endangered spaces are not protected there will
She said there is a need to identify common
including endangered species.
r stewardship of the valley
goals and work towards compromises to achieve bette
life and people who depend on it.
and Pelican Lake to protect it for the wild
Ms.
Helen Riesberry,
Mr. Gordon Henderson,
a cottager,
said that since the mid—l970’s he
Lake and has observed the water
has watched water levels drop in Pelican
It was his
in algae and weeds.
quality deteriorate badly due to increases
this valuable resource of
opinion that we should cherish and nurture
ity in the
Cottagers provide important economic activ
southwestern Manitoba.
new construction and many cottages
area, although at present there is not much
He pointed out that it will be the
are for sale because of water problems.
(
25
Pelican Lake Users
(coot.
excess
Mr.
Flows that are diverted trom the
Pembina Rivet to enhance the
lake.
Henderson recommended that the pro
ject be approved as proposed
.
Mr.
Ron Chalmers,
Chairman of the Pleasant Vall
ey Cottage Owner’s
Association, said that this org
anization supports the project
.
Raising and
stabilizing the water levels would
restore the shoreline, faci
litate aquatic
recreation, enhance fish and wil
dlife habitat and would provide
water
conservation benefits downstream.
In the Association’s opinion,
the cost of
the project is minimal in comparison
to the potential revenue gene
rated
through tourism and recreation if
the lake is restored.
If unsuitable
environmental conditions persist
a loss in economic activity wil
l result.
Mr. Ron Mccullough, a cottager,
said that because the project
will
benefit all users of the lake with
out detrimentally affectin
g downstream
users, he was in favour of the
project.
INPUT FROM DOW!STREAM INTERESTS
Ms.
Liz Dickson said that her fath
er owns farmland where some of
the
project works will be constructed
.
She supported the concept of
maintaining
an acceptable water level in Pelic
an Lake, but said that landown
er’s rights
should be respected.
Her brother, Mr. Moir Thompson.
said that he was
concerned that the raised water
levels could make some of thei
r land too wet
for cultivation or too soft to carr
y farm equipment.
The weir on the Pembina
River will hold water on their
fields, making seeding either
late or not
possible at all in very wet years.
Because of the fine texture of vall
ey
soils, he was concerned about chan
nel erosion.
Mr. Thompson noted that algae
and fish—kill problems are not con
trolled by water levels and have
occurred in
years when water was high or low.
He said they were opposed to havi
ng the
outlet relocated on their father’s
land.
I
26
Downstream Interests (cont. )
of the
our of the project on behalf
Mr. Ward Snyder spoke in fav
interests from areas
which represents a variety of
Tn—Lake Development Group,
ing
This organization has been work
and Swan lakes.
surrounding Pelican, Rock
on the Pembina River and
control structures installed
er
wat
have
to
1976
e
sinc
ined
spring runoff should be reta
It is their contention that
the lakes.
The enhancement project at
at a later date.
throughout the valley for release
rdue step in that direction.
Pelican Lake is a long ove
ent Group said that
also from the Tn—Lake Developm
er have been higher
flood peaks on the Pembina Riv
ured
meas
0’s,
194
the
e
sinc
ds to land clearing
He attributed the higher floo
than they previously were.
to maintain river
the need to retain floodwaters
and drainage, and emphasized
flow across the
Americans want the water to
flows throughout the year.
bina
Water management along the Pem
flood.
border, but not as a spring
Committee could
and the Pelican Lake Advisory
watershed must be improved,
Mr. Roy McLaren,
assist in this regard.
that
Lake Improvement Association said
Mr. Jake Harms from the Rock
Our past record of ditching and
resource.
water is a precious natural
a mistake, and we have
er as quickly as possible was
draining to get rid of wat
ificant flows
Harms said that whenever sign
Mr.
k.
bac
er
wat
g
din
hol
rt
to sta
a large quantity of
dwaters of the Pembina River
enter Rock Lake from the hea
a
Rock Lake does not need the extr
Badger Creek.
from
in
ing
flow
also
is
er
wat
release
water back in Pelican Lake and
It would be better to hold
flooding.
ugh the
Since spring run—off moves thro
and fall.
it slowly in the summer
and Louise lakes
Mr. Harms did not think Lorne
rivet system in a week or two.
Project.
by the Pelican Lake Enhancement
would be greatly affected
Lake,
Sundowner Campground at Rock
Bob Avery, owner/operator of
be
He was satisfied there would
ncement Project.
spoke in favour of the Enha
that with the
levels at Rock Lake, and said
no negative impacts on lake
that the project
Pelican Lake it is imperative
deteriorating condition of
Mr.
proceed.
r
(
27
Downstream Interests
(cont.)
Keith Southam, a landowner from Pilot Mound, expressed concern
about downstream releases from Pelican Lake and said that
late season floodin
Mr.
g
can damage crops and hayland.
He was concerned about the quality of water
“flushed” from Pelican Lake.
The soil of the Pembina Valley is prone to
severe erosion by water, and in the 47 years that Mr. Southarn
has worked with
this land he has seen the fragile soils damaged when not protect
ed by firmly
established hayland or pastures.
These haylands are very productive and are
the basis for a major beef industry in the Pembina Valley.
Mr. Southam said
care and caution should be used to avoid making any costly mistakes.
Mrs. Dora Southam, also from Pilot Mound, quoted the 1972 report
prepared by the Pelican Lake Advisory Committee, saying that raising water
levels in Pelican Lake will not change water quality either favourably or
adversely.
She noted that Rock Lake already has occasional problems with
algae, and was concerned that algae flushed downstream from Pelican
Lake would
aggravate these problems.
Mr. Jim Bell made a presentation to the Commission on behalf of
the
Pembina Valley Protection Association.
Comprising 130 landowners along the
length of the valley in Canada, the Association seeks to maintain the
existing
land use in the valley and retain the natural features of the valley.
Mr.
Bell said that his group did not receive a copy of the February
1990 proposal
in time to review it prior to the hearing, and so his comments were based on
the December 1989 version.
After researching the environmental and economic
impacts. the Association came to the conclusion that the project would have
disastrous results on downstream fish, wildlife, agriculture and
the
environment in general.
Historic climatic data
project is located is prone to dt
ates that the prairie region in which the
)flditiOns in 50% of the years on record.
Heavy flows in the small creeks and rivers occur for only four or five
days in
spring.
Typical shallow prairie lakes like Pelican Lake are subject to algal
28
Downstream Interests (cont.)
[“or the period of recoid Pemhina River flows have
growth during mid—summer.
Mr. Bell said that
requirements.
been barely sufficient to supply downstream
g severe damage to the downstream
this project has the potentidi of causin
community of their livelihood.
ecosystem and depriving the agricultural
period
an Lake levels for the
An analysis of Pembina River flows and Pelic
available) was conducted by the
1962—1988 (years for which flow data is
in place and operating.
Association, assuming the project had been
Association:
following conclusions were reached by the
1.
2.
The
in years when the
The largest flows in the Peinbina River occur
above the optimum;
level of Pelican Lake is already near or
level to which the
The maximum rise in the Pelican Lake water
these years was about
Pembina River could contribute in any of
s in which the lake
1 metre (1969 and 1972) but these were year
was already high;
3.
been no direct flow
In 8 of these 27 years there would have
and Louise to revive
from the Pembina River into Lakes Lorne
the marshes and allow fish spawning.
In other years there
t flow but usually
would have been a reduced amount of direc
some outflow from Pelican Lake as well;
4.
na River diversion
During these 27 years the proposed Pembi
Pelican Lake water
would only have made any real improvement in
levels in 1982,
1983,
1986 and 1987.
This raises the question
justified:
of whether the expense of the project is
S.
attained levels up to
In flood years Pembina River flows have
/s (1979) and
3
/s Cl969), 45.3 m
3
38.5 m
/s (1975), 44.7 m
3
52.1 m
/s (1974).
3
These figures give rise to considerable
Li
C
29
Downstream Interests (cone.
doubt whether the proposed dykes and control structures could
withstand such floods;
6.
The proposed Pelican Lake Enhancement Project will not be
cost—effective and will not fulfill the predictions for
benefit
to Pelican Lake.
It will have serious consequences for the
small lakes and the river downstream, and on fish stocks in
Rock Lake.
The Pembina Valley Protection Association is opposed to the Pelican
Lake Enhancement Project for a number of reasons.
Mr. Bell said that the
operating plan does not completely address the riparian rights
of downstream
owners to receive water of undiminished quantity and quality.
Lorne and Louise lakes were said by Mr. Bell to be reasonably
clean
with cattails and bulirushes consuming nutrients from the water.
These three
to four feet deep lakes are important nesting and fall staging areas
for
migrating waterfowl, including species rare to the area such as
Western
Wood ducks,
Goldeneyes and Canvasbacks.
livestock and irrigating a market garden.
the lakes.
Grebe,
Farmers use the lakes for watering
Beaver, muskrat and mink live in
A reduced water supply would destroy this ecosystem.
Large numbers of spawning Northern pike from Rock Lake are reporte
d
to move up the river into Lorne and Louise lakes.
Mr. Bell said that the
results of his organization’s evaluation indicated that under low
water
conditions, which would be created by the project, spawning fish
would be
trapped and die in most years.
Mr.
Bell stated that local residents had reported that during
periods
in the 1930’s, 1960’s, and 1980’s, water flows out of the east end
of Rock
Lake ranged from zero to an insignificant flow.
This contradicts the
statement by Water Resources that water diverted to Pelican Lake
will not
30
Downstream Interests (cant. )
reaches its target level every year
affect Rock Lake levels because Rock Lake
Mr. Bell said Rock Lake is dependent on all
and then spills water downstream.
could
Diverting water to raise Pelican Lake levels
sources of upstream water.
cause a drop in Rock Lake levels.
that would be
Concern was expressed about the quality of water
and
Mr. Bell said that the Ninette sewage lagoon
released from Pelican Lake.
systems are located in the
a large number of cottages with improper sewage
He
ation of water quality.
Pelican drainage basin, contributing to the degrad
downstream.
was concerned that the project would flush excess algae
the
are raised in or along
Between $3 to 4 million worth of feeder calves
The valley supplies good yields of grain and
Peinbina valley each year.
forage in dry years.
flow in the Pembina
the water table.
heavy water
It is very important that there be a fairly
to recharge
River in the spring to rejuvenate wild hay and
Heavy flows in the summer and early fall,
that would flood
Farmers have adapted their operations in the valley
Agriculture in the
the river.
to correspond to the natural water regime in
There are third generation families still
valley has been very successful.
fields, are not desired.
operating the same farms and ranches.
the Agri—Food
With regards to federal funding for the project from
to determine the location
Agreement, Mr. Bell said that his group was unable
that would benefit from the project and
of the 400 acres of irrigable alfalfa
As
requesting this irrigation.
could find no farmers in the immediate area
ral government and the river is an
the project is partially funded by the fede
of his Association that a
international waterway, it is the understanding
Mr. Bell said that they
federal environmental impact study is required.
ces to be inadequate in
consider the study conducted by Water Resour
of this project.
sufficiently addressing the downstream effects
H
1
31
Downstream Interests Cco
ntj
Upst ream activity exp
ected
in the next few years to
develop small
water retention structures for
the purpose of soil and wat
er conservation will
lessen heavy downstream spri
ng flows at the weir.
Mr. Bell said that the
Turtle Mountain Conservation
District has already constru
cted several small
dams on the Pembina River hea
dwaters.
Funds allocated for the
Enhancement
Project would provide more ben
efits to upstream users if
more small water
retaininq structures were con
structed in the headwaters
of the river system.
In answer to a question, Mr.
Bell said that his group’
s main concern
is that sufficient flows are
released in the spring to
allow fish spawning
movements and to provide for
agricultural needs.
Mr. Bob Crayston, a landown
er from Rock Lake, said tha
t wells in the
area are going dry and the soi
l is dry deep down.
In the 1930’s water levels
in Rock Lake were very low.
Presently a sandbar is hol
ding back run—off and
keeping lake levels up.
Mr. Crayston said that we nee
d to conserve water, and
the Pelican Lake project is
a good place to start.
Mr. Norbert Van Deynze spoke
in favour of the project on
behalf of
the Lame Game and Fish Associa
tion.
Boat launching ramps and cam
pground
sites built by the Association
on Swan Lake are presently
high and dry because
of low water levels on that
lake.
Water in Pelican, Rock and
Swan lakes
should be retained and con
trolled.
Mr. Alex Mcwilliams grew up
in the Rock Lake area.
He spoke in
favour of the Enhancement Pro
ject.
Southwestern Manitoba is ser
iously short
of water, he said, and the onl
y water to be seen is whe
re dams have retained
runoff.
Mr. Mcwilliams has been inv
olved with the Tn-Lakes
Improvement
Association, and he said the
ir aim has been to improv
e the water quality in
Pelican Lake first because
that is where the need is
the greatest and where
the most people will benefi
t.
It was his observation tha
t water quality is
better when levels are higher
.
Mr. Mcwilliams pointed out
that with Pelican
(
32
(cant.)
Downstream Interests
would nearly
ee feet of water
thr
tra
ex
an
is,
allo9 as it
Lake being as sh
water under the ice.
double the amount of
IEOThENTAL CONCERNS
JURISDICTIONAL/ENV
iversity, said
ssor from Brandon Un
ofe
Pr
cs
mi
ono
Ec
an
Dr. Joe Dolecki,
1989 edition of the
of the December 12,
y
cop
a
ed
eiv
rec
that he had only
er
the lack of a broad
and he objected to
nt,
ife
ess
ass
l
nta
me
opinion
environ
It was Dr. Dolecki’s
.
on
iti
ed
0
199
e February 28,
tion
distribution of th
He found the descrip
very skeletal.
s
wa
nt
me
ess
ass
l
that the environmenta
A benefit/cost
be inadequate.
to
cts
pa
im
m
ea
str
plan and down
of the operating
on was not provided
but enough informati
,
id
sa
he
,
ted
uc
cond
the
analysis should be
Federal funding and
such an analysis.
ke
rta
de
un
to
nt
with the assessme
l involvement in the
ver require federa
Ri
na
bm
Pem
the
of
e
be
international natur
eral review should
He said that the fed
ss.
ce
pro
iew
rev
environmental
and that it would be
construction starts
e
for
be
d
ue
iss
ce
completed and a licen
oject without
ba licence this pr
ito
an
M
t
of
en
rnm
e the gove
innapropriate to hav
w Office asking for
Assessment and Revie
l
nta
me
on
vir
En
es
contacting the Federal
Federal guidelin
enjoined.
be
ld
ou
sh
ss
ce
hìow the pro
their advice as to
.
instead of avoided
should be followed
the December 12,
citizen commented on
e
at
iv
pr
a
,
ey
inn
Dr. Gerald cI<
was
that this document
It was his opinion
t.
en
sm
ses
As
l
lly
1989 Environmenta
t should conduct a fu
federal governmen
the
at
th
d
nde
me
He recom
inadequate.
na River
of the entire PeTnbi
dy
stu
le
ib
ed
cr
scientifically
comprehensive and
til all federal and
ould be shelved un
sh
t
ec
oj
pr
the
d
Dr. MeKinney sai
basin.
fied.
ligations are satis
international ob
are
soils in the area
t Mound said that the
lo
Pi
m
fro
s
dde
Ge
Mr. Eric
ding
that federal fun
It was his opinion
n.
io
at
ig
irr
for
thdrawn.
inappropriate
nefits should be wi
ntial irrigation be
te
po
of
sis
ba
allocated on the
33 3
Jurisdictional/Environme
ntal Concerns (cont.
3
Mr.
Duncan Stewart,
representing The Sierra
Club of Western Canada
,
said they were opposed
to diverting the Pembina
River.
He believed that any
benefit arising from the
project will be more tha
n counter—balanced by
the
harm it will cause.
Also, his environment
al organization is opp
osed to river
diversions in general.
He stated his organization
’s view that historica
lly,
diversions have never
done what their propon
ents promised and ine
vitably harm
the countryside through
which the river runs.
Mr. Stewart stated tha
t there are no guaran
tees this diversion
project will help anyone
.
The Sierra Club believes
that it would be wiser to
adapt ourselves to the ebb
s and flows of natura
l systems.
An intervention to
solve one problem in a nat
ural system results in
further problems.
Mr.
Stewart said that the
hearing was evidence tha
t society is learning,
but
Sierra Club members loo
k forward to the day whe
n every development,
large or
small, undergoes a ful
l scale independent env
ironmental assessment.
Dr. Gordon Goldsboroug
h, a Biology Professor
from Brandon Universit
y,
stated that although the
concept of water quality
may have varying
interpretations, the de
finition most widely rec
ognized by the public
is the
amount of algae in water
.
After reviewing the En
vironmental Assessment
and
examining unpublished wa
ter chemistry data provid
ed by the Department of
Environment, Dr. Go
ldsborouqh determined the
re is not sufficient evi
dence to
conclude that the amount
of algae in Pelican Lak
e will change because of the
addition of Pembina Riv
er water.
‘Dissolved inorganic pho
sphorus’ levels, con
sidered by Dr.
Goldsborough to be the par
ameter most closely relate
d to algae production,
were not evaluated in
the Environmental Asses
sment and data for thi
s parameter
does not exist.
Unpublished deoartmenta
l data for ‘total reactiv
e phosphorus’
was considered in the
assessment, but this par
ameter includes forms
of
phoshorus not available
to algae or other plants
so that the use of thi
s data
is misleading.
There is insufficient
water chemistry data ava
ilable for
1
34
Jurisdictional/Enviro
nt.)
nmental Concerns (co
sonal
termine annual and sea
er to accurately de
Riv
na
nbi
Pei
the
Pelican Lake and
eight years.
ring the past six to
du
ly
lar
cu
rti
pa
ality,
trends in water qu
nd no significant
Or. Goldsborouqh fou
le,
ab
ail
av
ta
da
d
Based on the limite
ke and the Penthina
ter from Pelican La
wa
in
els
lev
t
en
nutri
difference between
levels of dissolved
ar indication that
cle
no
is
re
the
d
River, and he sai
ter from the
rease or decrease if wa
inc
ll
wi
e
lak
the
s in
inorganic phosphoru
river is added.
unds to support the
are insufficient gro
re
the
t
tha
ded
clu
He con
an
algae levels in Pelic
measured in terms of
ty,
ali
qu
ter
wa
t
argument tha
dertaken.
if the project is un
ve
pro
im
ll
wi
ke,
La
INPUT
LOCAL GOVERNMENT
unincorporated
n Committee for the
representing the Tow
Low water levels in
t.
pport for the projec
su
d
sse
pre
ex
,
tte
village of Nine
the community.
of great concern to
are
le
tab
ter
wa
al
the lake and the loc
Mr. Shane Box,
R.M.
a Councillor from the
Mr. Howard Nixon,
released slowly.
ld be retained and
flood waters shou
sal.
supports the propo
Mr. Wayne
Council considered
in full support of
that
of Riverside said
His municipality
ain, said that his
R.M. of Turtle Mount
Nichol, Reeve of the
and they were
worthwhile project,
y
ver
a
be
to
sal
the propo
plementation.
its approval and im
said that the
R.M. of Whitewater
the
of
eve
Re
l,
el
w
Mr. John Still
project
rn Manitoba, and the
idents of southweste
res
l
al
fit
ne
be
project would
pported.
was therefore su
35
PROVINCIAL GOVERNMENT INPU
T
Fisheries Branch
Mr. William Howard, Sou
thwestern Regional Fis
heries Manager, of the
Department of Natural Re
sources, said that with
some qualifications Fisher
ies
Branch favours the enhanc
ement oroject.
Describing the existing fish
ery, Mr. Howard said
that Pelican Lake is
a shallow, nutrient rich rec
reation area that suffer
s periodic fishkills in
winter and summer, but
it persists as a significa
nt walleye, perch and
pike
fishery for the region.
Angling success is variab
le and dependent on the siz
e
of the fish population,
which is a function of the
extent of the most rec
ent
winter fish kill.
Walleye fry are restocked
after a major winterkill, and
occasionally adult pike
and perch are stocked fol
lowing an exceptionally
severe winterkill.
Although an intensive cre
el census has never bee
n conducted at
Pelican Lake, average ang
ler use is estimated to
be 20,000 angler days per
year.
Based on a creel census
conducted at a similar
lake (Oak Lake) the
average value of the Pel
ican Lake fishery was est
imated to be $320,000/yea
r.
It was estimated by Mr.
Howard that angler use,
and thus the value of
the
fishery, would increase app
roximately 26% as a result
of the project,
primarily because of imp
roved access and improved
spawning.
Higher water
levels will improve boat laun
ching conditions, and should
lead to increased
recreational use and angler
days.
Reflooding of preferred
spawning areas
should improve conditions for
natural reproduction.
At present, pike numbers
are down because in recent
years there has been no
spawning in the marshy
areas at the north end of the
lake.
Only slight winterkill red
uction was expected by Mr.
Howard.
Although larger water volum
es will offer the potent
ial for larger dissolved
C
36
Prov. Gov’t.
Input
—
)
Fisheries Branch (cont.
gen storage.
ican Lake exceeds oxy
Pel
in
on
ati
pir
res
ernal
n
oxygen storage, int
synthetic activity tha
ated to under—ice photo
rel
y
sel
clo
re
mo
Winterkill is
jor factors that
w covet are the ma
sno
and
y
rit
cla
Ice
els.
it is to water lev
oxygen under ice by
and the production of
ity
tiv
ac
c
eti
nth
sy
interrupt photo
h, mostly
of winterkilled fis
1985, over 80 tonnes
of
g
rin
sp
the
In
algae.
have had some
Mr. Howard said they
an Lake.
lic
Pe
m
fro
d
ove
rem
walleye, were
eful that
hniques, and lie was hop
tec
ion
rat
ae
p
h pum
initial success wit
ough this approach.
e could be lowered thr
lak
the
in
ses
los
winterkill
by Mr.
were not expected
s in water quality
ent
vem
pro
im
nt
ica
signif
bably not to the
uted initially but pro
dil
be
ll
wi
els
lev
t
Nutrien
Howard.
He stated that
icantly reduced.
nif
sig
are
wth
gro
d
wee
point where algae and
is not possible, but
ality in Pelican Lake
qu
ter
wa
ne
sti
pri
the restoration of
improvement.
etic and biological
sth
ae
an
be
uld
wo
ae levels
any reduction in alg
e through the
posed 500 nun diameter pip
The provision of the pro
er flow will
e of the Pembina Riv
som
t
tha
ure
ens
ll
wi
ween
Pembina River weir
ing fish to the area bet
will help attract spawn
is
Th
m.
rea
nst
dow
continue
ws, Lorne and
with the assured flo
and
e,
sit
t
jec
pro
Badger Creek and the
es consistently
Lorne and Louise lak
affected.
be
not
uld
sho
es
Louise lak
fish population.
k a permanent game
lac
ore
ref
the
and
experience winterkill
by spawning pike
and Rock lakes used
n
ica
Pel
en
we
bet
es
zon
Water levels in the
Lake.
h emigrate to Rock
uld help juvenile fis
sho
w
flo
the
and
will be elevated
s
onstruction of portion
Mr. Howard about rec
by
sed
res
exp
was
rn
Conce
and Lorne
drop between Pelican
tre
me
r
fou
a
is
There
nnel.
of the outlet cha
The straightened
sion is significant.
ero
for
l
tia
ten
po
lakes, so that the
increased
habitat and result in
ing
wn
spa
le
uab
val
ough
channels will cut thr
areas
He requested that the
imentation.
sed
and
n
sio
ero
stream velocities,
the site
He offered to visit
be re—examined.
on
ati
liz
ne
an
ch
designated for
ize impacts to fishery
ble options to minim
ssi
po
iew
rev
to
ted
with the proponent
request and indica
this was a reasonable
t
tha
eed
agr
ner
Mr. Pen
habitat.
1
37
Prov.
Gov’t.
Input
—
Fisheries Branch (cont.)
that Water Resources would
re—examine the outlet channe
l and consider
points raised.
the
A stoplog structure rather than
a weir would have provided som
e
fisheries advantages because stop
logs can be removed in low flow
conditions to
allow fish passage during spaw
ning migrations.
Excessive velocities in the
proposed 500 nun pipe would not
allow fish passage.
However, Mr. Howard said
that spawning habitat is spa
rse upstream of the proposed wei
r, and fish have
only been reported occasionally
in the upper reaches.
Reduced flows past the
weir would probably reduce the
attraction for fish to migrate
upstream and the
extra cost associated with the con
struction and operation of a stop
log device
may be difficult to justify.
Protection of spawning habitat
through reduced
channelization of the outlet wou
ld be ample mitigation for loss
es caused by
the weir.
Reduced flows to downstream
reaches of the Pembina River were
anticipated by Mr. Howard until
desired Pelican Lake levels are
attained.
He
did not expect this to be a majo
r problem, but said that dur
ing this period
there may be fewer fish attracte
d upstream from downstream sou
rces.
Swan
Lake, which suffers partial to
complete winterkill almost
every year, relies
on upstream movement of fish to mai
ntain stocks.
In answer to questions foll
owing this presentation, Mr.
Howard said
that there has never been much
study of the fishery between Pel
ican Lake and
Rock Lake.
Rock Lake supports a good pik
e fishery, and the area between
the
lakes seems to be an important spaw
ning and nursery habitat.
Spawning success
is variable from year to year
and is dependent on water flow
s.
Low flows
later in the spring may trap the
fry.
Although additional flow wou
ld benefit
the fishery, significant imp
acts will be avoided because
the project will
allow some flow through the 500
mm pipe in the weir.
Mr. Howard also said
that there are carp in Rock
Lake, but these have not yet mad
e their way up to
Pelican Lake.
38
Prov. Gov’t.
Input
—
Fisheries Branch (cont.
osed would improve
Howard said that the project as prop
and adjust to
Over time the area would restabilize
the fishery in the area.
Overall, Mr.
the modified water
reqime.
Environment Department
icer from the Environment Department
Mr. Al Beck, an Environment Off
The Environment Act
of the proposal.
described the departmental review
ved on
supporting documentation were recei
Proposal Form and eight pages of
lic registries, circulated
Copies were then placed in the pub
August 15, 1989.
Terms
rs.
advertised in appropriate newspape
for interdepartmental review and
ronmental
ronment Department for an Envi
of Reference developed by the Envi
A report
.
the proponent on September 12, 1989
Impact Assessment were given to
nt’, prepared
ent Project Environmental Assessme
entitled “Pelican Lake Enhancem
In response to comments
d on December 12, 1989.
by the proponent, was release
up of
nical advisory committee made
received from the public and a tech
was revised
nt departments, this assessment
representatives from key governme
28, 1990.
d by the proponent on February
and the new version was release
ral public and non—government
Comments received from the gene
cited benefits
support of the project which
organizations included letters in
present a
er requesting an opportunity to
expected from the project, a lett
t flooding
, letters expressing concern abou
brief in opposition to the project
ual
series of letters from one individ
of private agricultural lands and a
for the
Letters expressing support
ject.
expressing concerns about the pro
le and
l Municipalities of Stratheona, Argy
project were received from the Rura
of Pilot Mound and Ninette.
Roblin and from the Villages
There
rtments submitted comments.
Various provincial government depa
The Historic Resources
number of departments.
were no concerns expressed by a
on channel
ical site near the present diversi
Branch identified one archaeolog
39
Prov. Gov’t.
Input
—
Environment Department
(cont.)
and requested that thi
s site be avoided.
The Resource Allocation
Working
Group of the Department
of Natural Resources rev
iewed the potential im
pacts on
wildlife, waterfowl, fis
heries, forestry, etc.
and concluded that ove
rall
there would be no advers
e impacts from the projec
t.
The Fisheries Branch
requested that a minimum flow
of 0.15 m
/s (5 c.f.s) be maint
3
ained between
the outlet of Pelican Lak
e and Badger Creek.
After receiving the submi
ssions from Natural Re
sources, Mr. Beck
requested a further evalua
tion with regards to rar
e and endangered spe
cies.
Dr. Karen Johnson (Cu
rator of Botany, Manitoba
Museum of Man and Natur
e), was
contracted by the propon
ent to examine the potent
ial impacts upon rar
e and
endangered species.
She reported few concer
ns about rare plant spe
cies
surrounding Pelican Lak
e.
However, because of ina
dequate information,
and the
potential for water levels
in wetlands downstream of
the project to decrease,
she recommended a tho
rough survey of rare ola
nt species in potent
ially
affected areas.
The Wildlife Branch anticip
ated no effects upon
endangered animal
species.
Areas considered by Mr.
Beck as likely to be aff
ected by the project
were Pelican Lake itself and
the downstream reaches
of the Pembina River
including the associated
lakes and wetlands.
He said that environm
ental
aspects which should be
given consideration, if
the Commission recomm
ends that
a licence be issued, includ
e;
—
—
the impacts of potential
flooding along the Pel
ican Lake
shoreline;
the impacts upon fish, fis
heries habitat, and we
tlands of the
diminished flow of water
through the downstream
reaches of the
Pembina River and associ
ated lakes and wetlands;
and,
(
40
Prov. Gov’t.
Input
—
(cont.)
Environment Department
3—l5W.
e reported at NW32—
the archaeological sit
eral
k made a number of gen
l presentation, Mr. Bec
Following his forma
n different things
ty is a term that can mea
ali
qu
ter
wa
t
tha
He said
comments.
The
use of the water.
endent on the intended
dep
is
and
ple
peo
to different
available only
the Pembina River is
and
e
Lak
n
ica
Pel
for
a
phosphorus level dat
total phosphorus is
a small proportion of
ly
On
s.
oru
sph
pho
for total
While diversion
nts.
able for uptake by pla
ail
av
s
thu
and
ter
dissolved in wa
uts of phosphorus
may mean greater inp
e
Lak
n
ica
Pel
o
int
ter
of pembina River wa
ine the impact on
insufficient to determ
is
a
dat
le
ab
ail
av
to the lake, the
the
displeasing and when
oms are aesthetically
blo
ae
Alg
.
on
cti
du
algae pro
unpleasant odors and
which can result in
urs
occ
n
itio
pos
om
bloom collapes, dec
Algae
or the death of fish.
, leading to stress
gen
oxy
the
of
on
pti
the consum
input from
Obviously, nutrient
loading.
t
en
tri
nu
of
m
pto
production is a sym
se algae blooms
s is sufficient to cau
ent
im
sed
e
lak
the
the drainage basin and
from time to time.
a marsh adjacent to
t lagoon is located in
en
atm
tre
age
sew
tte
The Nine
and
uces both bacteria
The lagoon itself red
ke.
La
n
ica
Pel
of
the north end
tation in the marsh
The surrounding vege
.
ter
wa
ste
wa
n’s
tow
nutrients in the
sing
so that effluent pas
uction of nutrients,
red
the
in
e
tiv
ec
is also eff
A number of cities
be further purified.
be
to
ed
um
ass
is
through the marsh
il marshes to
process and use catta
n
tio
ica
rif
pu
al
tur
s na
take advantage of thi
.
treat their sewage
systems.
ing different lake
difficulty of compar
the
out
d
nte
poi
Mr. Beck
ndent assessment.
and requires an indepe
Each lake is unique
ally
too shallow to therm
that Pelican Lake is
ed
lain
exp
k
Bec
Mr.
tion keeps nutrients
w, mixing by wind ac
llo
sha
is
e
lak
the
Because
stratify.
s (i.e.
The physical condition
ae.
alg
of
wth
gro
the
le for
continuously availab
L
C
flov.
41
Gov’t.
Input
—
Environment Department (cone.)
depth) on Pelican Lake also effectiv
ely prevent the establishment
and growth
of weeds because light does not pen
etrate to the lake bottom.
Lorne and Louise lakes are differen
t than other lakes in the syste
m.
Because they are shallower, ligh
t penetrates to the bottom so that
rooted
weeds can grow.
These two lakes already have an
abundant supply of nutrients,
but the weeds restrict the growth
of algae and thus weeds rather than
algae
flourish.
Because the algae cannot compete
with the weeds they are not
present to the same degree in Lorn
e and Louise lakes as in Pelican
Lake.
Any
increase in nutrient inputs that
night occur as a result of the Pelic
an Lake
Enhancement Project will not change
this situation.
The difference between
the biological regime of Pelican Lake
and Lorne and Louise lakes (alga
e vs
weeds) will not be altered by the
project.
In response to a question, Mr. Beck
said that only a very small
percentage of lake nutrients are pre
sent in the biomass (weeds and alga
e).
Although actively growing cattails
contain a tremendous quantity of
nutrients,
the amount is insignificant compare
d to the total nutrients presen
t in Pelican
Lake.
Removing cattails from Pelican
Lake would not have a measurable
impact
on the total nutrient supply.
Similarly any algae carried dow
nstream from
Pelican Lake would not introduce
a significant nutrient load to Lorn
e and
Louise lakes.
Algae will depress the oxygen supp
ly on decomposition.
Mr.
Beck pointed out that algae blooms
could originate anywhere in the
system if
conditions are right.
This would also include species
of blue—green algae
that are capable of releasing tox
ins harmful to man and animals.
Mr. Beck explained and qualified use
of the term flushing as
applied to the proposal.
Flushing” implies that water
in the entire lake
will be drained and replaced with
cleaner water.
He said this is not going to
happen.
Some water will be released from Pelic
an Lake, but the entire lake
will not be flushed*.
42
Prov.
Govt.
Input
—
Environment Department (cant. I
resulting from
er quality in Pelican Lake
Most of the changes to wat
le
Mr. Beck said there will be litt
etectable.
the project will probably be und
oxygen levels, arid
e, some benefits for dissolved
chanqe in the amount of alga
hardness.
improvements in terms of
BEARING
CORRESPONDENCE FOLLOWING THE
the hearing in Erandon,
Prior to the termination of
the Commission
tten submission in
request) to make a further wri
invited Mr. Jim Bell (at his
ortunity to
Protection Association an opp
order to allow the Pembina Valley
After
al report.
ised February 28, 1990 propos
study and respond to the rev
Mr. Bell provided
with his board of directors,
ort
rep
ised
rev
the
ing
uss
disc
Changes to the weir and
ion on March 19, 1990.
this submission to the Commiss
ssment report
February 1990 environmental asse
inlet channel proposed in the
e that the weir will
tection Association to conclud
led the Pembina Valley Pro
er will be
h the result that even less wat
overflow on fewer occasions, wit
design.
the conditions of the original
provided downstream than under
on the Pembina River is that of
The natural water flow condition
fields. recharge the
h rejuvenate marshes and hay
heavy flows in the spring whic
Heavy flows also erode and breach
and lakes.
water table, and fill sloughs
The February 1990
m.
spawning fish to move upstrea
beaver dams and thus allow
t these natural
nion of the Association, preven
proposal would, in the opi
not occur on the
Although optimum conditions do
phenomena from occurring.
should not be
ral frequency of such events
Pembina River every year, the natu
the proposal is implemented.
reduced as would happen if
0.4
heavier flows than the minimum
The Association contended that
base, are needed
d through the pipe at the weir
ase
rele
be
to
ed
pos
pro
s
/
3
m
/s it would take at
3
At 0.4 m
from Rock Lake.
to facilitate spawning of fish
e water starts
Louise lakes to the point wher
least 50 days to fill Lorne and
/s is always
3
Assuming that 11 m
lakes.
to overflow downstream of these
( 43
Correspondence
(cont.
diverted into Pelican
Lake before water sta
rts flowing over the
weir, the
Association calculated
that over the 27 yea
r period of streamflo
w records
there would have been flo
w over the weir in
only 12 of those ye
ars, and in
only 4 years would there
be conditions favourab
le for spawning.
If the project proceeds
as proposed, the As
sociation intends to
take
legal action to obtai
n at least 50% of the
flow to provide for
downstream
agricultural requirem
ents.
The submission stated
that outflow from Roc
k Lake has been com
pletely
blocked with a pressu
re ridge for the past
four years.
The Pembina Valley Pr
otection Association
recommended that the
project be abandoned
because, in their opini
on, it would be ext
remely
detrimental to agricult
ure and the environm
ent.
Mr. Frank Penner was
asked by the Clean En
vironment Commission
to
respond to the concerns
raised in the March
19, 1990 submission
from the
Pembina Valley Protecti
on Association.
In his response dated
April 10, 1990,
Mr. Penner noted that Pe
lican and Rock Lake
levels and outflows
are already
controlled and that a
state of nature does
not exist in the pro
ject area.
Changes from the De
cember 1989 to the Feb
ruary 1990 report do
not
significantly affect
the performance capabil
ity of the project,
other than the
addition of the pipe
in the weir to maintain
a base flow.
The elevation and
dimensions of the weir
and some culverts were
altered generally
to reduce the
volume of excavation and
land required and to
reduce the drop in wa
ter
surfaces across the str
ucture.
It is not correct to
say that the inlet has
been enlarged to accom
modate 11 1n
/s as is said in the Ma
3
rch 19, 1990
Pembina Valley Protecti
on Association submissi
on.
The channel capacity
has
always been 11 m
/s.
3
I
C
44
‘1,
)
nt.
Correspondence (co
on Pelican
project’s effects
analysis of the
the
at
th
id
sa
Mr. Penner
equate
a reasonable and ad
sources Branch is
Re
r
ate
W
the
nt
Lake levels by
aring was deficie
Mr. Bell at the he
by
d
te
en
es
pr
is
The analys
estimate.
rd from one year
ed and carried forwa
lat
mu
cu
ac
t
no
fects were
at the
because project ef
lated lake level
should use the regu
n
io
at
ul
lc
ca
r
A prope
not the
to the next.
rrent year
ng level for the cu
rti
sta
the
as
ious year
sion that
end of the prev
Mr. Bell’s conclu
previous year.
the
of
end
the
recorded ].evel at
the 28 years is in
ke levels in 4 of
La
an
lic
Pe
ve
pro
only im
ted that
the project would
Mr. Penner also no
is.
ys
al
an
ty
ul
fa
is based on a
error because it
ir which will
the pipe in the we
t
un
co
ac
to
in
e
not tak
this analysis did
—
flow.
maintain a base
of the
that an evaluation
. Penner stated
Mr
,
ion
iss
bm
su
In his
in
not have occurred
m Rock Lake may
fro
ow
tfl
ou
at
th
indicated
en
available data
there must have be
to conclude that
him
led
e
nc
ide
ev
The
th the
1977 and 1988.
er disagreed wi
ars, and Mr. Penn
ye
er
oth
st
mo
ck Lake in
cked for the past
outflow from Ro
been completely blo
s
ha
ke
La
ck
Ro
tflow from
ke
statement that ou
ow from Rock La
there were no outfl
if
at
th
ted
no
Mr. Penner
four years.
ct below Rock Lake
would have no effe
t
ec
oj
pr
the
n
nditions the
ow
under present co
of the river bel
s for the reach
ern
nc
co
no
be
ld
e shou
and therefore ther
Rock Lake.
magnitude of
uld depend on the
wo
g
in
od
flo
g
rin
sp
flows
Any reduction in
Pembina River
year to the next.
one
m
fro
ry
va
d would
Only the
spring runoff an
above Badger Creek.
the project only
by
ed
ct
fe
af
cted
are significantly
lley would be affe
stretch of the va
re
et
m
lo
ki
10
is
to th
haylands limited
ring flooding.
by reductions in sp
some flexibility to
ect would provide
oj
pr
the
of
n
io
The operat
g the duration
nditions by extendin
co
e
nc
ha
en
to
and possibly
mitigate effects
controlled to
Releases would be
kes.
la
e
uis
Lo
and
Lorne
of flows through
1.
C
prevent flooding.
well be positive.
45
Correspondence (cont.
The regional impact on fish, wate
rfowl, and wildlife may
Half of the $600,000 cost of the
project is expected to come
from the
federal government.
Mr. Penner noted that Water Reso
urces is aware of the
federal approvals required and they
have been working for some time
with
federal agencies to obtain these appr
ovals.
All appropriate federal
approvals, including 1
assessment will be acquired befo
re the Province proceeds
with the project.
In a letter dated April 30,
Penner’s response.
1990,
Mr. Jim Bell commented on Mr.
The validity of the analysis of
project effects cond
ucted
by Water Resources Branch is
dependent on how the computer is
programmed, and
Mr. Bell suggested that the data
be submitted to an independent math
ematician
for analysis and comment.
Projections about how long it wou
ld take for
Pelican Lake to fill, starting at
its present low level, under sce
narios of
continued dry years, years of norm
al flow and years of heavy flow
would be
useful in understanding the potenti
al impacts to Lorne and Louise
lakes.
Apart from the Pembina River system,
Lorne and Louise lakes receive
natural input only from one smal
l ravine system.
Residents know of no
reliable springs along these lake
s.
Old—timers remember that in the
1920’s
and 1930’s both lakes had very low
water levels.
Mr. Bell emphasized that
spring flooding is advantageous to
these lakes but that inputs in
late summer
or autumn are deleterious.
Flows released only through the
500 mm pipe in the
weir will not provide sufficient flow
to maintain levels in Lorne and
Louise
lakes.
Mr. Bell asked what steps would
be taken to prevent this pipe from
being plugged with debris.
Referring to Mr. penner’s statement
that only the 10 Km stretch of
valley between Pelican Lake and Rock
Lake will be affected by the pro
ject, Mr.
Bell noted that the area contains two
lakes and valuable farm land.
The
residents consider this area impo
rtant.
C 46
Correspondence (cont.)
outlet channel
location of the proposed new
The reasoning behind the
Mr. Bell wondered why
.
SW 5—4—15 W was questioned
of
ry
nda
bou
th
nor
along the
land side of the boundary.
ted entirely on the farm
the channel would be loca
een the productive
should be shared equally betw
land
of
loss
the
ted
He sugges
s and golf course
the boundary and the cottage
farmland on one side of
side.
development on the other
dated May 8,
these comments in a letter
Frank Penner responded to
cked periodically
through the weir will be che
The 500 mm diameter pipe
1990.
staff, with funds
d by Water Resources Branch
and cleaned out as require
project will be
Sediments removed from the
ance.
provided from general mainten
ject.
land purchased for the pro
deposited on government
Mr.
a River has been
1988 the flow in the Pembin
to
1962
iod
per
the
r
Ove
the period March to
average of 180 days during
an
for
s
0.4
/
3
1n
than
s
les
valley would be
Only a small portion of the
October or 74% of the time.
ey will
Below Badger Creek the vall
flooding.
subject to reduced spring
Badger Creek).
the tributary streams (i.e.;
to
due
rs
yea
t
pas
in
function as
Pelican
ur in the spring.
from Pelican Lake will occ
The majority of releases
Pembina River above
no worse quality than the
of
er
wat
ges
har
disc
ch
Lake, whi
a River system and the
discharged into the Pembin
Lorne Lake, has naturally
If
to Lorne Lake.
sent pattern of discharge
pre
the
es
difi
mo
ply
sim
project
ned to be beneficial could
downstream flooding determi
desirable, the level of
t.
be provided by the projec
that the
Mr. Penner said
the location of channels,
In terms of determining
ilitate the outlet
n of land required to fac
most economical acquisitio
channel was chosen.
(
47
DISCUSSION
All ot those who made pre
sentations at the hearing
agreed that
Pelican Lake is a beautiful
lake.
Regionally it is a hig
hly valued location
for recreation, cottag
ing, fishing, and tourism
.
There are few lakes of
comparable size and quality
in south—western Manitoba
and many of the
presentations made in sup
port of the proposal add
ressed the need to pre
serve
and maintain the natural bea
uty of Pelican Lake.
Fluctuating flows and water
levels are significant
characteristics of
the waterbodies affected by
the Pelican Lake Enhanceme
nt Project, especially
Pelican Lake.
It is generally the snow
melt in the spring that
results in the
recharge of these lakes.
The spring recharge flood
abates rapidly, summer
flows generally are low
, and fall and winter rech
arge flows are minimal.
Below Rock Lake, the flow
of the Pembina River has
become zero, on occassion
,
Runoff from rainfall qui
ckly enters streams in the
basin and some flooding
along the Pembina River
can occur in the summer
or fall after heavy rain
storms.
Fluctuations in streamflow
over decades reflect lon
g term variations
in annual precipitation amo
unts in this prairie river
basin.
Between 1962 and
1988 the average maximum
recorded flow rate on the
Penibina River at PR 253
above Lorne Lake has bee
n 15.0 rn
/s, but the maximum flow
3
recorded at that
site ranges from 52.1
/s in 1974 to 1.6 m
3
rn
/s in 1988.
3
From year to year
there is extreme variabilit
y in flows in the Pem
bina River.
It was reported
by local observers at the
hearing that water lev
els in Pembina Valley lake
s
were low in the 1920’s and
1930’s.
During the early 1970’s wat
er levels were
high on Pelican Lake.
Fluctuations in the amount
of annual precipitation
received from year to yea
r follow long term climatic
conditions.
The Pembina Valley lakes
are affected by these sea
sonal and long term
fluctuations in incoming
streamflow, but levels are
also a function of variou
s
dams or other regulating
structures.
Sediments deposited by
tributary streams
(
48
Discussion (cant.)
formed natura’
laTHS
generated currents
Wave action and wind
ated the lakes.
that otLginally cre
nce on these dams.
have a continued influe
but
nce on water levels
a significant influe
Beaver dams can have
Factors influencing
to population levels.
ng
rdi
co
ac
s
rie
va
beaver activity
pping effort.
many and include tra
beaver numbers are
maintain a dam on
cted and continue to
tru
ns
co
e
hav
s
rce
Water Resou
There has been a
get level.
at an established tar
els
lev
te
ula
reg
flock Lake to
e
lican Lake where extrem
control levels on Pe
to
pts
em
att
of
y
histor
nal users.
frustrated recreatio
fluctuations have
angered species.
luding any rare or end
inc
,
ies
ec
sp
nt
pla
Native
Pembina River
the valley, or in the
of
es
lak
and
ms
growing in the strea
se
ws, are adapted to the
ted by changing flo
ec
aff
are
y
the
ere
floodplain wh
els to
fluctuating water lev
e instances require
sam
in
and
,
ns
tio
varia
n for
ed by autumn drawdow
ring flooding follow
sp
d
nee
ies
ec
sp
Many
survive.
ons of drought
longer term fluctuati
the
d
nee
ies
ec
sp
Other
optimal growth.
For example, bullrush
their life cycle.
te
ple
com
to
ars
ye
and high water
nding
plants grow best in sta
mudflats but adult
d
ose
exp
on
t
rou
seeds sp
in turn provides
ctuating water levels
flu
on
ent
end
dep
Vegetation
water,
of their lives on
living for all or part
l
fow
ter
wa
and
ls
t
habitat for the anima
found in the area tha
nt and animal species
pla
All
es.
lak
the streams and
on and
g degrees dependent
project are to varyin
the
by
ted
ec
aff
would be
ng water levels.
adapted to fluctuati
re is no
species such that the
y from species to
var
s
on
iti
nd
co
Optimal
these species
nditions under which
co
ter
Wa
st.
be
that is
In this
particular regime
from year to year.
ble both annually and
ria
va
n
bee
e
hav
The
have evolved
ations.
have always been fluctu
re
the
t
tha
e
not
rtant to
,
regard, it is impo
ing the higher flows
spring runoff provid
a
n
bee
ays
alw
general pattern has
ter years could
A series of low wa
ar.
ye
the
of
t
res
the
with lower flows for
H
49
Discussion
(cont.)
cause a shift in plant species
distribution and could be
disruptive to human
uses, but as long as a low water
period is eventually followe
d by higher water
levels, the ecosystem will rem
ain healthy.
Substantial changes to long
tern
mean lake levels or streamflow,
or changing seasonal runoff
patterns could
cause permanent changes to the
downstream ecosystem.
Fluctuations in water levels
on Pelican Lake are greater
than on the
inunediate downstream lakes bec
ause the watershed providing
runoff into Pelican
Lake is limited.
In general a larger watershed
tends to average out runoff
characteristics so that fluctuat
ions are less extreme.
On Pelican Lake the
extreme fluctuations in water
levels interfere with recreati
onal uses, and the
intent of the Water Resources
proposal is to reduce extreme
s but not eliminate
fluctuations.
Low water conditions, presen
tly occurring on Pelican Lake
,
reduce the recreational value
of the lake.
This does not, however, mean
that
the ecosystem is unhealthy.
Habitat for some species
might be reduced by the
present low water levels, but
other species could benefit.
For example,
shorebirds can be seen feeding
on exposed lake bottom around
the shoreline.
The optimization of the benefit
s of the Pelican Lake Enha
ncement
Project requires the reducti
on of extreme water levels
on Pelican Lake, while
providing adequate downstream
flows.
Higher flows in the spring
followed by
drawdown to mimic the natural dow
nstream regime is needed if
the existing
ecosystem is to be protected.
Unfortunately, some natural
and human uses
occurring downstream have uni
que optimal water regimes that
often vary.
Determining what should be opt
imized involves, to a cert
ain extent, placing
values on competing downstream
uses in order to establish
an ideal or ‘target
regime.
Theoretically an optimum dow
nstream regime is an importa
nt objective,
but actual streamf low and lake
level conditions will a) dict
ate what flows are
possible, and b) provide further
refinement towards establishin
g an ideal
regime because it will give an ind
ication of what would have
happened if the
project had not been in plac
e.
Flow forecasting will pro
vide important
information in this regard.
( 50
Discussion (cont.
e been considerable
so years, there hav
or
d
dre
hun
one
st
Over the pa
tersheds through human
and Pelican Lake wa
er
Riv
a
bin
Pem
changes to the
s are no longer in
aring that these syslem
he
the
at
ed
not
acttvit-y, and it was
ion and subsequent
include the 1919 divers
s
on
ati
ter
Al
.
on
iti
a natural cond
provide some Pembina
e which continued to
em
sch
ion
ers
div
t
modifications to the
The Pelican Lake outle
til the early 1970s.
un
ke
La
an
lic
Pe
o
River water int
l has been upgraded
and the outlet channe
es
tim
of
ber
num
has been modified a
some places.
and straightened in
clearing and drainage
s, including land
ce
cti
pra
l
ura
ult
ric
Ag
off characteristics of
water quality and run
the
d
ere
alt
ely
projects, have lik
faster runoff.
her sediment load and
hig
to
g
din
lea
,
basin
haps
tributaries to the
ation District, and per
e Mountain Conserv
rtl
Tu
the
in
ts
Local water projec
ipally to retain
n constructed princ
bee
e
hav
ich
wh
,
sin
the ba
ing in
in other parts of
ty and reduced flood
ent in water quali
vin
pro
im
e
som
in
water, will result
tributaries.
antified influence
Lake has had an unqu
an
lic
Pe
und
aro
Human activity
a corresponding
g to the lake, with
din
loa
t
en
tri
nu
on sediment and
pollution
The sources of this
ty.
ali
qu
ter
wa
in
ation
unquantified deterior
Construction
lative.
the effects are cumu
and
es
urc
so
t
oin
are mainly non—p
ber of farming
and drainage, and a num
ng
ari
cle
d
lan
,
ilding
activities, road bu
Disposal of human and
sed sedimentation.
rea
inc
to
te
ibu
ntr
practices all co
trient
lds can increase nu
lizer runoff from fie
rti
fe
and
s
ste
wa
livestock
loading.
were mentioned at the
sources of pollution
t
oin
—p
non
se
the
Although
Project and
an Lake Enhancement
lic
Pe
the
by
ted
ec
not be aff
hearing, they will
nent.
pared by the propo
of the assessment pre
pe
sco
the
ond
bey
were
e undetermined
llution would provid
po
of
es
urc
so
se
ucing the
Eliminating or red
ned in the
the principles outli
ality,
qu
ter
wa
ke
La
an
lic
improvements in Pe
51
Discussion
(cont.
Manitoba government’s Soil and Wate
r Strategy, recently developed
in response
to commitments to sustainable developm
ent, are relevant to this problem.
Action, in accordance with these orin
ciples, to the Pelican Lake
situation
could in the long term lead to impr
ovements in water quality.
Improvements in
water management and resulting wate
r quality might also result from
all
appropriate Manitoba rural munici
palities joining together to form
a Pembina
Valley Watershed Conservation Dis
trict.
There were concerns raised at the
hearing that federal funding of
this project through the Canada—
Manitoba Agri—Food Agreement is
inapprooriate.
It was argued that the project would
provide benefits to
tourism and recreation but not to
agriculture.
Mr. Penner stated that
benefits to agriculture would inclu
de flood protection and enhanced
flows
during low flow periods.
He also said that the project wou
ld create a greater
potential for irrigation, although
this possibility was limited.
Another concern expressed at the hear
ing was that federal funding of
the project, the potential for the
project to impact fisheries, and
the fact
that the Pembina River is an interna
tional waterway require environm
ental
review and licensing of the project
at the federal government leve
l.
In this
regard, Mr. Penner has stated that
all federal aporovals will be obta
ined
before construction of the project
begins.
The Clean Environment Commission’s
consideration of this matter is
mandated under the Manitoba Environm
ent Act.
While the Commission recognizes
the importance and necessity of com
pliance with federal requirements,
questions of federal involvement
are beyond the jurisdiction of the
Commission.
52
CONCLUSIONS
sented, the Clean
proposal and evidence pre
the
ng
eri
sid
con
After
Water
should be issued to the
concludes that a licence
sion
mis
Com
ent
onm
Envir
al Resources to construct
oba Department of Natur
nit
Ma
the
of
nch
Bra
Resources
limits
subject to the terms,
e Enhancement Project,
Lak
n
ica
Pel
the
e
rat
and ope
ended in this report.
and conditions recomm
to the people of the
ely valuable resource
rem
ext
an
is
e
Lak
n
ica
Pel
elling of
believes that the lev
sion
mis
Com
The
d.
ate
loc
region in which it is
n experienced over the
low water that have bee
and
h
hig
the
of
es
the extrem
icant benefits
t, will provide signif
jec
pro
the
of
n
tio
nta
years, by the impleme
Ninette residents,
of interests, including
ber
num
a
and
rs
use
e
to the lak
tourist trade
rural municipalities, the
ng
ndi
rou
sur
the
recreational users,
interests.
and other commercial
For this
al impacts.
of adverse environment
There is also some risk
ts will change
e environmental impac
ers
adv
se
cau
to
ial
proposal, the potent
n Lake and the Pembina
water conditions in Pelica
to
se
pon
res
in
r
yea
every
over operation of
t of ongoing decisions
jec
sub
the
be
st
mu
River and therefore
the control structures.
Project are most
Pelican Lake Enhancement
Mverse impacts from the
tential
The extent of these po
illed.
ref
ng
bei
is
e
Lak
likely when Pelican
when
are during the period
low Pembina River flows
how
on
s
end
dep
ts
impac
level the potential
n Lake reaches target
ica
Pel
e
Onc
ce.
pla
refilling takes
of downstream
At all times the extent
l be less.
wil
ts
pac
im
m
rea
nst
for dow
Operation of
ed.
l structures are operat
tro
con
the
how
on
impacts will depend
benefits such as flood
also provide downstream
ld
cou
es
tur
uc
str
l
the contro
ancement.
control and flow enh
ter Resources Branch
effects conducted by Wa
The analysis of project
e
ersion will provid
trol structure and div
con
the
of
ion
rat
ope
predicted that
( 53
Conclusions (cant.
improved regulation of Pel
ican Lake water levels.
Downstream impacts were
predicted to extend onl
y as far downstream as Rock
Lake, and to be greatest
between Pelican Lake and Bad
ger Creek.
Mr. Penner said that belo
w Rock Lake
changes to Pembina River
flows would be barely det
ectable excluding low flow
periods when Pelican Lake wat
er is released to augmen
t Pembina River flows.
At the hearing Mr. Penner
said that a more detailed
hydrologic
analysis was being conduc
ted by the Water Resources
Branch to more precisely
predict downstream impacts
on the total reach of the
Pembina River between
Pelican Lake and the United
States border.
Mr. Penner said that this new
study will be completed
soon and indicated that the
results of the study
confirm the predictions of the
first model and analysis
that downstream
impacts will be minima
l.
The Commission recommends
that when this hydrologic
report is
completed, the Environmen
t Department should review
its findings and compar
e
them to those of the ori
ginal study. to determine
if there is any significa
nt
deviation which should be
reflected in the terms of
the Environmental licence
issued for the project.
The downstream ecosystem has
adjusted to low water lev
els and flow
fluctuations in the past wit
hout a spring flood taki
ng place every year.
This
type of ecosystem is res
ilient because it is sub
ject to periodic fluctuati
ons
and such fluctuations are
required to maintain ecosys
tem relationships.
Whether extreme short
term conditions result from
human regulation or from
climatic conditions does not
matter to the ecosystem
as long as the natural
regime is maintained ove
r the long term.
This does not mean, how
ever, that
low (or high) water conditions
caused by human activity
are necessarily
acceptable if they cause
a considerable disruption
of existing resources.
Part of the licence reques
t submitted by the Water
Resources Branch
was that a Pelican Lake Adv
isory Committee be establ
ished to advise on optimum
1
54
Conclusions (cont.)
Commission
The Clean Environment
.
16)
e
(se
t
p.
jec
operation of the pro
ate success of the
portant to the ultim
im
ly
me
tre
ex
is
it
re
believes that
established to ensu
Advisory Committee be
an
t
tha
n
tio
era
proposed project op
l benefits are
ized and that potentia
nim
mi
are
ts
pac
im
rse
that any adve
sts by providing
rious affected intere
va
the
to
d
ate
oc
all
y
optimized and fairl
ntrol structures.
on operation of the co
nch
Bra
the
to
ns
recommendatio
ficials
lude municipal of
Committee should inc
the
on
ion
tat
sen
Repre
gyle and Roblin,
de, Turtle Mountain, Ar
rsi
ve
Ri
a,
on
hc
rat
St
from the R.t4.s of
cottage owners.
including farmers and
s
ner
dow
lan
m
rea
local and downst
sheries Branch and
tatives from the Fi
en
res
rep
s
rce
sou
Re
al
ent
Department of Natur
tative of the Departm
Group and a represen
ng
rki
Wo
on
ati
loc
be
the Resource Al
The Committee should
to the Committee.
ed
int
po
ap
be
uld
of environment sho
.
ter Resources Branch
entative from the Wa
chaired by a repres
r
pointed for five yea
Committee should be ap
the
on
s
ive
tat
sen
Repre
al Resources
The Minister of Natur
rces.
sou
Re
al
tur
Na
of
r
ste
terms by the Mini
nsultation with
visory Committee in co
Ad
the
to
e
nc
ere
of ref
should issue terms
The Advisory
ure, and Tourism.
ult
ric
Ag
,
ent
onm
vir
the Ministers of En
ised
flow control is exerc
the summer before any
ing
dur
et
me
uld
Committee sho
e, which are
Costs of the Committe
up.
ak—
bre
g
rin
sp
e
for
be
r
and in late winte
Resources Branch.
be borne by the Water
uld
sho
al,
nim
mi
be
expected to
lican
water levels on Pe
Branch should monitor
s
rce
sou
Re
ter
Wa
The
and impacts of the
assess the performance
to
ke
La
k
Roc
to
m
Lake and downstrea
ter Resources
conducted by the Wa
be
o
als
uld
sho
Flow forecasting
project.
Branch should
visory Committee the
Ad
the
of
ng
eti
me
h
Before eac
Branch.
nditions in
project, present co
the
of
nce
ma
for
per
the past
prepare a report on
provided to
The report should be
ing.
ast
ec
for
w
flo
and
s
affected waterbodie
lly available.
ers and made publica
all Committee memb
—3
1
55
Conclusions (cont.
The impact of low flows on fish was
a concern expressed at the
hearing.
Northern pike from Rock Lake
migrate upstream to spawn in
the
spring, and have been known to mov
e beyond Lorne Lake during
these spawning
movements.
successful spawning requires
sufficient spring flow so that
fish
can swim upstream and sufficient
summer flow so that newly hatc
hed fry can
migrate down to Rock Lake before
winter.
Mr. Jim Bell said that spri
ng flows
must be great enough to puncture
beaver dams, otherwise these
obstacles will
block upstream fish migrations
.
Lorne and Louise lakes are not the
only spawning habitat availab
le to
Rock Lake pike, although it is
not known what percentage of
Rock Lake pike
spawn in these lakes.
Mr. Howard said that there have
been few studies
conducted of the Rock Lake fish
ery.
Lorne and Louise lake spawning
runs are
not successful every year.
The Commission believes that
sufficient flows for
spawning are desirable, as freq
uently as possible, to ben
efit the Rock Lake
fishery.
There was considerable discussion
at the hearing about the potenti
al
for this project to improve Pel
ican Lake water quality by
reducing algae.
Based on the available informa
tion, the Clean Environment
Commission concludes
that there is no persuasive evid
ence that the project will cau
se significant
changes in algae levels or water
quality in Pelican Lake.
It was reported
that past problems with algae have
occurred regardless of the
elevation of
lake water levels.
Available water chemistry data
suggests that nutrient
levels in Pembina River water are
similar to Pelican Lake wat
er, so it is not
expected that diversion of water wil
l change algae levels in
Pelican Lake.
A number of downstream users were
concerned that water releases
from
Pelican Lake could carry alga
e into downstream lakes, and
at levels that would
cause problems.
This is unlikely to be a problem.
The greatest flows from
Pelican Lake would be in the
spring when floodwaters would
be released.
(
56
Conclusions (cont.
Pelican Lake are
levels (ChLorophyll—A) in
ae
alg
n
whe
son
sea
Spring is the
are
ly fall when algae levels
ing the summer and ear
Dur
.
est
low
be
to
n
know
but the flows wLll not be
Pelican Lake may occur
from
es
eas
rel
er
wat
highest,
as great.
ht be swept
in Pelican Lake, that mig
Algae species floating
a stream environment as
ld likely not survive in
wou
es,
eas
rel
h
wit
downstream
th in a lake but are
selves at an optimal dep
such species maintain them
ing themselves against a
have difficulty maintain
and
bile
mo
not
ise
otherw
may be broken
algae species from the lake
Colonial and single cell
current.
be absorbed and
Dead algae remains should
currents.
am
stre
e
viv
sur
not
up and
There should be no
nnel.
nts along the outlet cha
filtered by the marsh pla
e as
ae carried into Lorne Lak
amount or species of alg
the
in
nge
cha
ble
measura
t was operated.
when the diversion projec
compared to earlier years
ies Biologist with
l Howard, Regional Fisher
At the hearing, Mr. Bil
visit the site with Mr.
ources, requested that he
Res
al
tur
Na
of
ent
the Departm
that
Mr. Howard’s concern is
let channel.
out
the
for
ns
pla
Penner to review
mission
The Clean Environment Com
intained.
ma
be
itat
hab
ng
wni
fish spa
the
ensure optimum design of
sultation is important to
believes that this con
outlet channel.
ject structures would be
at the hearing that pro
Concern was expressed
Mr. Penner
Pembina River.
floods experienced on the
damaged by the maximum
maximum recorded
designed to withstand the
e
wer
res
ctu
stru
the
t
said tha
successfully in many
the weir has been used
The design selected for
floods.
ure has no operating
The proposed weir struct
locations in Manitoba.
iods;
debris during overflow per
minating blockage by
eli
y
reb
the
s,
ism
han
mec
l have to be routinely
t, located in the base, wil
ver
cul
mm
500
the
however,
mission is satisfied
The Clean Environment Com
blockage.
t
ven
pre
to
ned
ntai
mai
od would not damage
t the maximum recorded flo
tha
nce
ura
ass
’s
ner
with Mr. Pen
‘
57
Conclusions (cant.
the project and that the proposed structures are appropriate for the intended
purpose.
If dykes and channels to separate Pembina River flows from Pelican
Lake outflows,
identified as a possible option on the site plan submitted with
the proposal, are to be constructed,
then the construction should be
considered as an alteration to the proposal under Section 14 of the
Environment ActS
The impact of the dyke and channel on fish spawning habitat
and marsh vegetation should be reviewed at that time.
There was much interest and many concerns registered by a variety of
individuals and organizations with an interest in the water quality of Pelican
Lake and the Pembina River system.
The Commission recommends that the rural
municipalities adjoining Pelican and Rock lakes should consider joining the
Pembina Valley Water Conservation District to facilitate the examination and
adoption of measures which would improve water quality of the lakes, the
incoming drainage water, and the entire river basin.
(
58
RECOMMENDATIONS
The Clean Environment Commission recommends that a licence under the
ct works
Environment Act be issued to the Water Resources Branch to constru
Pe1icjn Lake Enhancement Project,
substantially as shown on the plan entitled
s
Site Plan Showing Project Components File No.
l4—9—1OSOA, Revision Date
excluding the dykes and channels identified as possible options.
90-Q2—27,
ing terms,
The Clean Environment Commission also recommends the follow
limits
and conditions.
I.
The level of Pelican Lake shall be regulated by the Applicant
to a target level
2.
in the range 411.48 to 411.94 m a.s.l.
/s water from the Pembina River may be diverted by
3
Up to 9 rn
the applicant into Pelican Lake.
No diversion is to be made
when the Pembina River flow at PR 253 above Lorne Lake is less
s.
3
than 0.4 in /
3.
/s water may be released by the Applicant from
3
Up to 11 m
Pelican Lake to Lorne Lake.
No release is to be made when the
flow in the Pembina River at PR 253 above Lorne Lake exceeds 20
s.
m
/
3
Pelican Lake releases shall be controlled so that the
release flow plus the flow in the Pembina River at PR 253 above
/s.
3
Lorne Lake does not exceed 20 m
4.
The project shall be operated by the Applicant within the
specified limits having regard to the resources of Pelican
Lake, Lorne Lake,
Louise Lake,
Rock Lake,
the Pembina River and
of the areas surrounding the lakes which are affected by the
river and lakes.
Lt
1
59
Recommendations
5.
Icont.
A Pelican Lake Advisory Committee shall be appointed by the
Minister of Natural Resources in the manner described in this
report to advLse Ltie Applicant on optimum operation of the
project (See pages 53 and 54).
6.
The Applicant shall ensure that a report on past performance of
the project, present conditions and flow forcasting is prepared
and made available to Advisory Committee members and interested
members of the public before each meeting of the Committee.
7.
The project shall be operated by the Applicant to ensure that:
a)
channel capacities downstream of Pelican Lake shall not
be exceeded such that overbank flooding occurs as a
result of releases from Pelican Lake, except in the
spring when such flooding would normally occur and the
project shall be operated when possible to prevent
flooding along the Pembina River during seasons other
than the spring; and,
b)
periodic spring season flooding downstream of Pelican
Lake occurs to the extent and as frequently as deemed
optimal by the Advisory Committee to protect the
downstream ecosystem.
8.
The outlet channel shall be designed by the Applicant in
consultation with designated reoresentatives from Fisheries
Branch and the Environment Department and constructed to ensure
that fish habitat and natural water purification conditions are
provided.
[
1
60
Recommendations
9.
(cant.
The
Applicant shall ensure that all materials excavated from
the
site during construction,
time,
or
removed by dredging at a later
are disposed at a site acceptable to the Environment
Department.
10.
The Awplicant shall undertake a survey of rare and endangered
plant species along
the Pembina River and the outlet channel
between Pelican Lake and Badger Creek and shall undertake any
measures deemed necessary by the Environment Department to
protect rare and endangered species.
11.
The Applicant shall provide fair compensation to any farmers
whose agricultural activities between Pelican Lake and Badger
Creek are adversely affected by the Pelican Lake Enhancement
Project.
61
LIST
OF
EXHIBITS
Ninette Centennial Hall
10:30 ann., Thursday, March 8,
1990
1.
Hon. J. Glen Cummings, Letter, Requesting the Clean Environment
Commission to hold a public hearing with regard to the Pelican
Lake Enhancement Project.
2.
Jim Bell, brief, with regard to the Water Resources Branch, ETA.
3.
Jessie Lowe,
4.
Prank Penner, Water Resources Branch, Proposal.
5.
Howard Nixon,
Presentation.
Councillor, R.M.
6.
Greg Sholdra,
resident from Winnipeg,
7.
Dale Berry, Manhattan Beach,
8.
Rod Stephenson,
brief.
9.
Dr.
brief.
of Riverside,
Camp,
Verbal
Verbal Presentation.
brief.
resident from the Municipality of Strathcona,
Michael Taylor,
Pelican Lake Yacht Club,
brief.
brief.
10.
Mrs.
ii.
Moir Thomson,
12.
Shane Box,
13.
Wayne Nichol,
14.
John McLelland, Board of the Ninette and District Centennial
Hall Inc., brief.
15.
Dr. Doreen Moggey.
16.
Edward Crawford, Ninette Community Club,
brief.
17.
Ward Snyder,
Tn—Lake Development Group,
brief.
18.
Roy McLaren,
Tn—Lake Development Group,
brief.
Liz Dickson, Killarney resident,
Killarney resident,
brief.
resident of Ninette, brief.
Reeve, R.M.
of Turtle Mountain, brief.
Pelican Lake Development Corp.,
brief.
62
1
Rock Lake Improvement Association,
brief.
19.
Jake Harms,
20.
Dr. David Stewart,
teacher, brief.
21.
Bob Avery,
22.
Jack Yellowlees,
23.
Mr.
24.
Jim Bell,
25.
John Stillwell, Reeve of the R.M.
26.
Bob Crayston,
27.
Norbert Van Deynze,
28.
Joe Dionne,
29.
Roy Woolsey, Ninette and Area Lions Club,
30.
william 14. Howard, Fisheries Biologist,
Dept. of Natural Resources, brief.
31.
Al Beck,
32.
Marcel Timmerman, Trehemne wildlife Association, brief.
33.
R.
34.
Vic Neustaedter.
retired medical doctor,
resident from the R.M.
and university
of Argyle, brief.
Verbal Presentation.
& Mrs. Keith southarn,
resident,
brief.
Pembina Valley Protection Association,
of Whitewater, brief.
resident of Rock Lake, Verbal Presentation.
Lame Game and Fish Association,
Tiger Hills Game and Fish,
Manitoba Environment,
Lundqren,
brief.
brief.
brief.
brief.
Water Resources Branch,
brief.
resident of Rock Lake,
brief.
Christian Enrichment Family Camp,
brief.
63
LIST
OP
EXHIBITS
Royal Oak Inn, Brandon, Manitoba
8:30 p.m.
4 Thursday, March 8, 1990
1.
Helen Riesberry,
brief,
2.
Dr.
Joe Dolecki,
University of Brandon,
3.
Dr.
Gerry McKinney,
4.
Gordon Henderson,
5.
Eric Geddes,
6.
Ron Chalmers, Pleasant Valley Cottage Owner
’s Association,
brief.
7.
Duncan Stewart, The Sierra Club of Western
Canada, brief.
8.
Dr. Gordon Goldsborough,
Brandon, brief.
9.
Ron Mccullough,
brief.
brief.
brief.
resident from Pilot Mound,
brief.
scientist at the University of
cottage owner,
brief
10.
Rod Stephenson,
resident from the Municipality of Strathcon
a,
verbal presentation.
11.
Alex Mcwilliams,
brief & petition.