U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
WHITEFISH LAKE
FLATHEAD COUNTY
MONTANA
ERA REGION VIII
WORKING PAPER No, 804
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-------
REPORT
ON
WHITEFISH LAKE
FLATHEAD COUNTY
fWTANA
EPA REGION VI11
.*
WORKING PAPER No, 804
WITH THE COOPERATION OF THE
MONTANA DEPARTMENT OF HEALTH & ENVIRONMENTAL SCIENCES
AND THE
MONTANA NATIONAL GUARD
MAY, 1977
-------
CONTENTS
Page
Foreword ii
List of Montana Lakes and Reservoirs iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 4
IV. Nutrient Loadings . 8
V. Literature Reviewed 12
VI. Appendices 13
-------
11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the '
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
iii
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGEMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U.S. Environmental Protection Agency)
express sincere appreciation to the Montana Department of Health
and Environmental Sciences for professional involvement, to the
Montana National Guard for conducting the tributary sampling
phase of the Survey, and to those Montana wastewater treatment
plant operators who voluntarily provided effluent samples.
The staff of the Water Quality Bureau provided invaluable
lake documentation and counsel during the Survey, reviewed the
preliminary reports, and provided critiques most useful in the
preparation of this Working Paper series.
Major General John J. Womack, the Adjutant General of Montana,
and Project Officer Major William Yeager, who directed the volun-
teer efforts of the Montana National Guardsmen, are also gratefully
acknowledged for their assistance to the Survey.
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LAKE NAME
Canyon Ferry
Clark Canyon
Flathead
Georgetown
Hebgen
Koocanusa
Mary Ronan
McDonald
Nelson
Seeley
Swan
Tally
Tiber
Tongue River
Whitefish
Yellowtail
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES AND RESERVOIRS
STATE OF MONTANA
COUNTY
Broadwater, Lewis and Clark
Beaverhead
Flathead, Lake
Deer Lodge, Granite
Gallatin
Lincoln, MT; British Columbia, Can.
Lake .
Flathead
Phillips
Missoula
Lake
Flathead
Liberty, Toole
Big Horn
Flathead
Carbon, Bighorn, MT; Bighorn, WY
-------
WHITEFISH LAKE
Tributary Sampling Site
X Lake Sampling Site
f^-f Drainage Area Boundary
Upper
White fish
Lake
Map Location
-------
WHITEFISH LAKE
STORE! NO. 3016
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Whitefish Lake is oligotrophic.
It ranked first in overall trophic quality when the 15 Montana
lakes and reservoirs sampled in 1975 were compared using a com-
bination of six parameters*. One of the water bodies had less
and one had the same median total phosphorus, one had less
median dissolved orthophosphorus, none of the others had less
but four had the same median inorganic nitrogen, two had less
mean chlorophyll a_, and three had greater mean Secchi disc
transparency. No depression of dissolved oxygen occurred at
depths as great as 51.8 meters.
Survey limnologists observed a few emergent aquatic plants
near the Swift Creek inlet and the outlet in June.
B. Rate-Limiting Nutrient:
Due to significant nutrient changes in the samples, the
algal assay results are not considered representative of con-
ditions in the lake at the times of sampling.
The lake data indicate nitrogen limitation in June and
phosphorus limitation in July and September.
C. Nutrient Controllability:
1. Point sources—No known wastewater treatment plants im-
pacted Whitefish Lake during the sampling year. Lakeshore septic
tanks were estimated to have contributed 0.9% of the total phos-
phorus load, but a shoreline survey would.have to be done to
* See Appendix A.
-------
2
determine the significance of those sources.
The present phosphorus loading of 0.43 g/m 2/yr is less
than that proposed by Vollenweider (Vollenweider & Dillon,
1974) as a eutrophic loading (see page 11). It is likely
that any significant increase in the phosphorus loading
would result in a noticeable degradation of water quality,
and every effort should be made to limit phosphorus inputs
to the lake.
2. Non-point sources—It is estimated that non-point
sources contributed nearly all of the total phosphorus load
to the lake during the sampling year. Swift Creek contributed
70.6%, the minor tributaries and immediate drainage contributed
an estimated 18.1%, and Lazy Creek contributed about 6% of
the total load.
The phosphorus export rate of unimpacted Swift Creek was
a relatively high 21 kg/km 2/yr compared to the mean export
rate of 37 Montana tributaries gaged and sampled during the
Survey (8 kg/km2/yr). The cause of the higher rate is not
known; however, unimpacted McDonald Creek* also had a rather
high export rate (26 kg/km 2/yr), and the entire drainage of
that stream is within Glacier National Park.
* See Working Paper No. 797.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
tt
A. Morphometry :
1. Surface area: 13.56 kilometers2.
2. Mean depth: 32.9 meters.
3. Maximum depth: 62.5 meters.
4. Volume: 446.124 x 106 m3.
5. Mean hydraulic retention time: 2.5 years.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Lazy Creek 43.5 0.79
Swift Creek 198.1 3.48
Minor tributaries &
immediate drainage - 70.6 1.30
Totals 312.2 5.57
2. Outlet -
Whitefish River 325.8** 5.57**
C. Precipitation***:
1. Year of sampling: 73.6 centimeters.
2. Mean annual: 75.3 centimeters.
t Table of metric conversions—Appendix B.
tt Horpestad, 1975.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976.
** Includes area of lake; outflow adjusted to equal sum of inflows.
*** See Working Paper No. 175.
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III. WATER QUALITY SUMMARY
Whitefish Lake was sampled three times during the open-water
season of 1975 by means of a pontoon-equipped Huey helicopter.
Each time, samples for physical and chemical parameters were
collected from a number of depths at three stations on the lake
(see map, page v). During each visit, a single depth-integrated
(4.6 m to surface) sample was composited from the stations for
phytoplankton identification and enumeration; and during the first
and last visits, a single 18.9-liter depth-integrated sample was
composited for algal assays. Also each time, a depth-integrated
sample was collected from each of the stations for chlorophyll a^
analysis. The maximum depths sampled were 39.6 meters at station
1, 50.6 meters at station 2, and 51.8 meters at station 3.
The sampling results are presented in full in Appendix D and
are summarized in the following table.
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TEMP (C)
DISS OXY (MG/L)
CNOCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (Mf,/L)
TOT P (MG/L)
ORTHO P (MG/D
N02»N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHl (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 6/
3 SITES
RANGE MEAN
3.1 - 10.7 6.6
9.2 - 10.8 10.3
97. - 118. 106.
7.7 - 8.3 8.0
83. - 103. 92.
0.007 - 0.061 0.018
0.010 - 0.016 0.012
0.020 - 0.020 0.020
0.020 - 0.030 0.022
0.200 - 0.500 0.265
0.040 - 0.05C 0.042
0.220 - 0.520 0.285
1.1 - 1.9 l.ft
1.5 - 4.1 2.9
CHEMICAL CHARACTERISTICS FO* WHlTEFISM LAKE
STOPET COOE 3016
2/75)
MEOI AN
6.3
10.2
105.
8.0
89.
0.010
0.011
0.020
0.020
0.200
0.040
0.220
1.9
3.2
2ND SAMPLING (
R
2.0
8.0
91.
7.6
82.
0.004
0.002
0.020
0.020
0.200
0.040
0.220
0.9
7.3
3
ANGt
- 19.0
9.8
- 146.
8.4
88.
- 0.129
- 0.006
- 0.040
- 0.030
- 0.200
- 0.070
- 0.240
1.1
7.3
SITES
MEAN
10.1
9.1
116.
3.1
85.
0.019
0.003
0.022
0.021
0.200
0.043
0.222
1.0
7.3
7/28/75)
MEDIAN
8.1
9.2
104.
7.9
86.
0.006
0.003
0.020
0.020
0.200
0.040
0.220
0.9
7.3
3RO SAMPLING ( 9/ 5/75)
3 SITES
KANGE MEAN MEDIAN
4.9 - 17.4 12.0 14.o
8.4 - 10.6 9.3 9.1
103. - 137. 120. 126.
7.6 - 8.3 8.1 8.2
81. - 91. 86. 86.
0.006 - 0.039 0.010 0.007
0.002 - 0.006 0.002 0.002
0.020 - 0.040 0.021 0.020
0.020 - 0.020 0.020 0.020
0.200 - 0.300 0.206 0.200
0.040 - 0.060 0.041 0.040
0.220 - 0.320 0.227 v.220
1.0 - 2.4 1.6 1.4
6.1 - 7.0 6.t 6.1
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B. Biological characteristics:
1. Phytoplankton -
Sampli ng
Date
06/02/75
07/28/75
09/05/75
2. Chlorophyll
Sampli ng
Date
06/02/75
07/28/75
09/05/75
Dominant
Genera
1. Fragilaria sp.
2. Synedra sp.
3. Stephanodiscus sp.
4. Asterionella s£.
5. Chroomonas sp.
Other genera
Total
1. Fragilaria sp.
2. Dinobryon sp.
3. Asterionella sp.
4. Cryptomonas S£.
5. Scenedesmus sp.
Other genera
Total
1. Dinobryon sp.
2. Sphaerocystis sp.
3. Schroederia sp.
Total
Station
Number
1
2
3
1
2
3
1
2
3-
Algal Units
per ml
259
216
86
86
86
2
735
524
489
105
70
70
174
1,432
314
140
35
489
Chlorophyll a
(yg/D
1.1
1.9
1.9
0.9
0.9
1.1
1.4
1.0
2.4
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7
C. Limiting Nutrient Study:
Significant changes in nutrient levels in the samples
occurred prior to the beginning of the algal assays, and the
results are not considered representative of conditions in the
lake at the times the samples were collected (06/02/75 and
09/05/75).
The lake data indicate nitrogen limitation in June (the
mean inorganic nitrogen/orthophosphorus ratio was 4/1) but phos-
phorus limitation in July and September (the mean N/P ratios
were 14/1 and 21/1, respectively).
-------
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Montana National
Guard collected monthly near-surface grab samples from each of the
tributary sites indicated on the map (page v), except for the high
runoff months of May and June when two samples were collected. Sampling
was begun in October, 1974, and was completed in July, 1975.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Montana District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were deter-
mined by using a modification of a U.S. Geological Survey computer pro-
gram for calculating stream loadings*. Nutrient loads for unsampled
"minor tributaries and immediate drainage" ("ZZ" of U.S.G.S.) were esti-
mated using the means of the nutrient loads, in kg/km2/year, at stations
C-l and D-l and multiplying the means by the ZZ area in km2.
No known wastewater treatment plants impacted Whitefish Lake during
the sampling year.
* See Working Paper No. 175.
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9
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Lazy Creek 375 6.4
Swift Creek 4,130 70.6
b. Minor tributaries & immediate
drainage (non-point load) - 1,060 18.1
c. Known municipal STP's - None
d. Septic tanks* - 55 0.9
e. Known industrial - None
f. Direct precipitation** - 235 4.0
Total 5,855 100.0
2. Outputs -
Lake outlet - Whitefish River 2,580
3. Net annual P accumulation - 3,275 kg.
* Estimate based on 198 lakeshore dwellings and one park; see Working Paper
No. 175.
** See Working Paper No. 175.
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10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/
Source yr
a. Tributaries (non-point load) -
Lazy Creek 16,485
Swift Creek 95,660
b. Minor tributaries & immediate
drainage (non-point load) - 30,430
c. Known municipal STP's - None
d. Septic tanks* - 2,145
e. Known industrial - None
f. Direct precipitation** - 14,640
Total 159,360
2. Outputs -
Lake outlet - Whitefish River 87,710
3. Net annual N accumulation - 71,650 kg.
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr
Lazy Creek
Swift Creek
9
21
E. Mean Nutrient Concentrations in Ungaged Streams:
Tributary
Beaver Creek
Hell Roaring Creek
Mean Total P
Cone, (mg/1)
0.012
0.014
% of
total
10.3
60.1
19.1
1.3
9.2
100.0
kg N/km2/yr
379
483
Mean Total N
Cone, (mg/1)
0.643
0.558
* Estimate based on 198 lakeshore dwellings and one park; see Working
Paper No. 175.
** See Working Paper No. 175.
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11
F. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/m2/yr 0.43 0.24 11.8 5.3
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Whitefish Lake:
"Dangerous" (eutrophic loading) 0.70
"Permissible" (oligotrophic loading) 0.35
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12
V. LITERATURE REVIEWED
Horpestad, Abe, 1975. Personal communication (lake morphometry).
WT Dept. of Health & Env. Sci., Helena.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Pub!. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
-------
13
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE OATft TO BE USEO I'i
LAKE
CODE LAKE NAME
3001 CANYON FERR*
3002 CLARK CANfON
3003 FLATHEAD LA*E
300<» GEORGETOWN RESERVOIR
3005 HEUGEM RESERVOIR
3006 KOOCANUSA RESERVOIR
3007 MARr RON AN LA>sE
3008 MC DONALD LAKE
3009 NELSON RESERVOIR
3010 SEELEr LAKE
3011 StfAN LAKE
3012 TALLY LAKE
3013 TIBER RESERVOIR
3014 TONGUE RIVER RESERVOIR
3016 WHITEFISH LAKE (LOWER)
MEDIAN
TOTAL P
0.047
0.04-*
0.008
0.02?
0.022
0.045
0.020
0.006
0.029
0.015
0.010
0.011
0.018
0.051
0.003
••It 01 AN
iNOrf'o N
0. 170
0.160
0.050
0.040
0.040
0.100
0.040
0.1 BO
0.075
0.040
0.050
0.050
O.ldO
0.050
O.OtO
500-
MEA.V SEC
442.600
398.750
267.633
367.333
367.700
337.643
371.091
190.667
456.750
362.857
282.750
339.167
448.555
474.111
290.000
MEAN
Cr->LOKA
5.816
2.375
1.273
6.983
4.063
2.669
4.673
0.467
7.233
2.171
3.?«9
2.083
2.806
16.678
1.400
15-
MIN uO
1-*.400
12.000
9.000
10.200
13.800
10.400
14.200
6.400
11.400
13.200
9.600
9.200
9.600
13.600
7.000
ME 01 AN
01 3S 0* 1 -1C r-
0.02^
0. .'27
0.00**
0.011
0.020
0.04^
0.006
0.002
0.007
0.010
0.004
0.004
0.004
0.006
0.003
-------
^E^CENT OF i.IKES w!
L*l <
79 (
79 (
29 (
96 (
4 (
36 (
96 (
46 (
61 (
4 (
46 <
79 (
N
2)
3)
6)
10)
10)
4)
13)
0)
5)
13)
6)
8)
0)
6)
10)
50C-
MEAN SE
21 '
29 '
93 (
50 (
43 (
71 (
36 (
100 (
7 (
57 (
86 (
64 (
14 (
0 (
79 <
M£AN- 13-
C C-tLO^A MIU DO
3)
H)
13)
7)
6)
10)
5)
14)
1)
8)
12)
9)
2)
0)
11)
21 (
6" (
93 (
1- (
36 (
57 <
29 (
ICO (
7 (
71 (
43 (
79 (
5C (
0 <
86 (
3)
•~i)
1J)
2)
i)
8)
<•)
14)
1)
10)
6)
11)
7)
0)
12)
0 I
36 (
66 <
57 (
14 (
5C (
7 (
100 (
43 (
29 (
68 (
79 (
68 (
21 (
93 ('
0)
5)
12)
d)
2)
7)
D
14)
6)
4)
9)
11)
9)
3)
13)
ME oi
DI5.S OK
; i
14 (
75 t
29 !
21 <
0 (
57 (
100 <
50 (
36 (
75 (
75 (
75 <
43 (
93 (
AN
TnO -
1)
2)
V)
<«>
3)
0)
8)
1«>
7)
5)
9)
9)
9)
6)
13)
I'NOc*
NO
77
171
*-> !
^f)?
23^
22h
27i
504
172
353
397
429
266
110
519
-------
LAKES RANKED 8Y INDEX. NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 3016 WHITEFISH LAKE
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 10 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
^
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR MONTANA
09/09/76
LAKE CODE 3016
WHITEFISH LAKE
TOTAL DRAINAGE AREA OF LAKE (SO KM)
SUB-DRAINAGE
TRIBUTARY AREA(SQ KM)
JAN
FEB
325.8
MAR
NORMALIZED FLOWS(CMS)
APR MAY JUN JUL AUG
SEP
OCT
NOV
OEC
MEAN
3016A1
3016C1
3016D1
3016ZZ
325.8
43.5
198.1
84.2
1.98
0.23
0.42
0.17
1.84
0*17
0.42
0.14
2.83
0.14
0.57
0.23
7.08
0.28
2.69
0.85
16.42
2.27
11.33
3.96
18.41
3.40
16.99
6.51
7.08
1.13
4.25
1.70
2.69
0.57
1.42
0.71
2.27
0.42
1.27
0.57
1.98
0.34
0.85
0.28
2.12
0.28
0.35
0.25
2.12
0.28
0.71
0.23
5.58
0.79
3.48
1.30
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 325.8
SUM OF SUB-DRAINAGE AREAS = 325.8
TOTAL FLOW IN =
TOTAL FLOW OUT =
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAH MEAN FLOW DAY
3016A1
FLOW DAY
FLOW DAY
FLOW
3016C1
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
74
74
74
75
75
75
75
75
75
75
75
75
74
74
74
75
75
75
75
75
75
75
75
75
2.124
1.982
1.869
1.586
1.501
1.784
2.265
11.327
20.1C5
9.684
4.248
3.256
0.425
0.311
0.283
0.227
0.170
0.142
0.198
2.322
4.248
1.841
0.850
0.736
6
3
8
5
10
9
6
3
1
14
6
3
d
5
10
6
3
1
14
2.265
1.841
1.841
1.841
2.492
2.124
1.671
4.559 17
15.404 8
9.769
0.425
0.368
0.283
0.227
0.0
0.142
0.566 17
3.398 8
1.699
15.518
21.521
2.832
4.248
66.38
66.83
-------
TRI8UTAKY FLO* INFORMATION FOR MONTANA
09/09/76
LAKE CODE 3016 WNlTEFISH LA^E
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
3016D1
10
11
12
1
2
3
ft
5
6
7
8
9
74
74
74
75
75
75
75
75
75
75
75
75
FLOW DAY
FLOW DAY
FLOW
0.991
0.878
0.623
0.425
0.396
0.453
1.161
10.874
20.445
6.230
2.010
1.642
6
3
8
5
10
9
6
2
1
14
1.161
0.793
0.680
0.510
0.311
0.510
0.396
2. 436 17
20.558 8
6.060
20.558
27.326
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 76/08/05
DATE
FROM
TO
75/06/02
75/07/28
75/09/05
C0010
TIME DEPTH WATER
OF TEMP
DAY FEET
10
10
10
10
10
10
10
15
15
15
15
15
15
17
17
17
17
17
17
00
00
00
00
00
on
00
50
50
50
50
50
50
?5
25
25
25
25
25
0000
0005
0015
0025
0050
0100
0130
0000
0005
0020
0035
0085
0126
0000
0005
0034
0060
0090
0116
CENT
10
7
6
6
4
3
3
19
18
18
8
3
2
16
16
15
8
5
5
.2
.6
.7
.3
.7
,^>
.4
.0
.7
.3
.2
.0
.3
.5
.5
.4
.2
.8
.4
301601
4d 23 40.0 114 2* 45.0 3
wrilTEFISH LAKE (LOwEH)
30039 MONTANA
130291
IIE^ALES 2111202
013** FEET DEPTH CLASS
00300
00
MG/L
1C. 2
10.6
10.6
10.6
10.4
10.2
10.2
8.8
8.4
8.6
9.8
9.4
9.2
8.6
9.4
9.0
10.0
9.4
8.8
00077
TRANSP
SECCHI
INCHES
60
288
276
:• 1* '•
' •'.,,* '
00094
CNOUCTVY
FIELD
MICROMHO
113
106
105
102
99
97
96
141
133
141
103
101
104
133
*• . 133
<£-* 129
105
103
103
00400
PH
SO
7.90
7.85
7.80
7.30
7.85
7.70
6.30
8.40
8.40
8.40
7.90
7.80
7.80
8.25
8.30
8.30
8.00
7.80
7.70
00410
T ALK
CAC03
MG/L
87
86
83
85
87
87
87
88
87
88
88
87
88
83
84
86
31
8b
86
00610
NH3-N
TOTAL
MG/L
0.020
0.020
0.020
0.020
0.030
0.020
0.020K
0.020
9.020
0.020
0.020
0.020
0.020
0.020K
0.020K
0.020K
0.020K
0.020K
C.020K
00
00625
TOT KJEL
N
MG/L
0.200
0.200
0.200K
0.200
0.200
0.200
0.200
0.200K
0.200K
0.200K
0.200K
0.200
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
00671
PHOS-DIS
OHTriO
MG/L P
0.011
0.011K
0.012K
0.012K
0.012K
0.012K
0.012K
0.003
0.003
0.002
0.004
0.005
O.OC4
0.002K
0.002K
0.002K
0.002K
0.002K
0.002K
K VALUE KNOWN TO 8E
LESS THAN INDICATED
-------
STOSET RETRIEVAL DATE 76/08/05
301001
4d 23 40.0 114 24 <45.0 3
wHITEFISrt LAKE
30039 MONTANA
130291
11EPALES
013*. FEET
DEPTH
2111202
CLASS 00
DATE
FROM
TO
75/06/0?
75/07/38
75/09/05
00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCOT LT
OF A REMMNG
DAY FEET
10
10
10
10
10
10
10
15
15
15
15
15
15
17
17
17
17
17
17
CO
00
00
00
00
00
00
50
50
50
50
50
50
?5
25
?5
25
25
25
0000
0005
0015
0025
0050
0100
0130
0000
0005
0020
0035
0085
0126
0000
0005
0034
0060
0090
0116
M<3/L P
0.011
0.009
0.010
0.008
0.009
0.010
0.009
0.006
0.006
0.004
0.066
0.034
0.129
0.007
0.007
0.007
0.009
0.008
0.015
JG/L PERCENT
1.1
0.9
1.4
-------
STORET RETRIEVAL DATE 76/08/05
301602
48 27 00.0 114 22 32.0 3
arflTEFISH LAKE
30029 MONTANA
130291
11EP4LES 2111202
0165 FEET DEPTH CLASS 00
DATE
FRJM
TO
75/06/02
75/07/28
75/09/05
00010
TIME DEPTH HATER
OF . TEMP
DAY FEET
10
10
10
10
10
10
10
15
15
15
15
15
15
17
17
17
17
17
17
17
SO
50
50
50
50
50
50
15
15
15
15
15
15
55
55
55
55
55
55
55
0000
0005
0015
0025
0050
0100
0161
0000
0005
0035
0060
0110
0161
0000
0005
0020
0034
0075
0125
0166
CENT
10
9
8
6
5
3
3
19
18
8
3
2
2
17
17
16
13
6
5
4
.1
.8
.2
.3
.0
.6
.1
.0
.7
.1
.6
.4
.0
.4
.4
.5
.8
.7
.1
.9
00300
DO
MG/L
10.2
10.0
10.8
10.6
10.2
10.2
10.0
8.8
8.0
9.6
9.6
9.8
9.2
8.8
8.8
9.6
1C. 6
9.6
9.6
8.4
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMriO
126 117
116
110
105
100
99
97
138
146
112
101
99
104
240 137
135
133
123
105
103
103
00400
PH
SU
8.20
8.20
8.20
8.20
8.00
7.90
8.20
8.40
8.40
8.00
7.85
7.80
7.60
8.20
8.30
8.35
0. 25
7.95
7.80
7.60
00410
T ALK
CAC03
MG/L
87
89
88
88
90
100
100
83
83
83
85
87
88
87
89
89
88
91
91
82
00610
NH3-N
TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020
0.030
0.020
0.020
0.020
0.020
0.020
0.020
0.030
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
00625
TOT KJEL
N
MG/L
0.300
0.300
0.200
0.200
0.300
0.200
0.200
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020
0.02UK
0.020K
0.020K
0.02UK
0.020K
0.020K
0.030
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.040
00671
PHOS-DIS
ORThO
MG/L P
0.011K
0.011K
0.010K
0.010K
0.014J
0.016
0.011
0.003
0.002
0.003
0.003
0.003
0.006
0.002K
0.002
0.002K
0.002K
0.002K
0.002K
0.006
K* VALUE KNOWN TO BE LtSS
THAN INDICATED
J« VALUP KNOWN TO 3E I") FRRO-i
-------
STORE! RETRIEVAL DATE 76X08/05
301603
<+3 27 00.0 m 22 32.0 3
HrllTEFISH LAKE (LOwER)
30029 MONTANA
130291
11EPALES
0165 FEET
2111202
DEPTH CLASS 00
DATE
FROM
T'J
75/06/02
75/07/28
75/09/05
00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCOT LT
OF A REMNING
DAY FEET
10
10
10
10
10
10
10
15
15
15
15
15
15
17
17
17
17
17
17
17
50
50
50
50
50
50
50
15
15
15
15
15
15
55
55
55
55
55
55
55
0000
0005
0015
0025
0050
0100
0161
0000
0005
0035
0060
0110
0161
0000
0005
0020
0034
0075
0125
0166
MG/L
0.
0.
0.
0.
0.
0.
0.
c.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
p
008
007
009
009
061
027
012
007
004
006
006
008
0^3
007
008
006
007
007
006
039
JG/L PERCENT
1.9
0.9
1.0
-------
STORET RETRIEVAL DATE 76/08/05
DATE
FROM
TO
75/06/0?
75/07/28
75/09/05
TIMF
OF
OAY
1
1
1
1
1
1
14
14
14
14
14
14
14
18
18
18
18
18
?0
?0
20
20
20
?0
50
50
50
50
50
50
50
30
30
30
30
30
DEPTH
FEET
0000
0005
0015
0030
0050
0072
0000
0005
0015
0040
0080
0130
0170
0000
0005
0025
0038
0074
00010
WATER
TEMP
CENT
10.7
9.7
9.0
6.1
*».<*
4f I
18.1
17.9
17,3
7.1
3,0
2.3
2.2
17,0
16.9
16.1
10.7
6.3
00300
DO
MG/L
9.2
10.2
10.2
10.^
10.4
10.4
8.2
9.0
9.6
9.8
9.4
9.2
9.0
9.0
9.2
10.6
9.0
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES
162
286
240
118
117
114
105
100
99
139
139
133
98
96
94
91
135
135
129
113
301603
48 25 26.0 114 21 31.0 3
xrilTEFISH LAKE
30023 MONTANA
130291
11EPALES
0076
00400
PM
SU
8.20
8.20
8.15
8.00
7.95
7.95
8.40
8.40
8.40
7.90
7.85
7.75
7.80
8.20
8.30
8.30
8.10
7.90
2111202
FEET DEPTH CLASS
00410
T ALK
CAC03
MG/L
97
100
102
99
103
103
83
82
83
84
85
86
86
83
91
84
85
86
OOtUO
NH3-N
TOTAL
MG/L
0.030
0.020
0.020
0.030
0.020
0.020K
0.020
0.020
0.020
0.020
0.020K
0.030
0.020
0.020K
0.020K
0.020K
0.020K
0.020K
00
00625
TOT KJEL
N
MG/L
0.300
0.200K
0.400
0.400
0.400
0.500
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.20QK
0.200
0.200K
0.200
0.200K
0.300
00630
N02&N03
N-TOTAL
MG/L
0.020*
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.040
0.030
0.020K
0.020K
0.020K
0.020*.
0.020K
00671
PHOS-DIS
O«THO
MG/L P
0.011
0.010
0.013
0.015
0.011
0.012
0.002K
0.002
0.002
0.002
0.002
0:003
0.004
0.002K
0.002K
0.002K
0.002K
0.003
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/08/05
301603
48 25 26.0 11* 21 31.0 3
•iMITEFISH LAKE
30029 MONTANA
1302V1
11EPALES 2111202
0076 FEET OtPTn CLASS 00
DATE
FROM
TO
OF
DAY FEET
75/06/02
75/07/2H
75/09/05
11
11
11
11
11
11
14
14
14
14
14
14
14
18
18
18
18
18
?0
?0
20
20
?0
?0
50
50
50
50
50
50
50
30
30
30
30
30
0000
0005
0015
0030
0050
0072
0000
0005
0015
0040
0080
0130
0170
0000
0005
0025
0038
0074
0.011
0.011
0.037
0.029
0.038
0.045
0.005
0.005
0.012
0.006
C.005
C.007
0.006
0.007
0.006
o.OOb
0.007
0.017
00665
DS-TOT
5/L r>
0.011
0.011
0.037
0.029
0.038
0.045
0.005
0.005
0.012
0.006
C.005
C.007
0.006
0.007
0.006
o.OOb
0.007
0.017
32217 00031
CHLRPHYL INCDT LT
A REMNING
JG/L PERCENT
1.9
1.1
?.4
-------
. APPENDIX E
TRIBUTARY DATA
-------
STORET RETRIEVAL DATE 76/08/05
DATE TIME DEPTH M026.N03
FROM OF
TO DAY FEET
74/10/06
74/11/0!
74/12/08
75/01/05
75/02/10
75/03/09
75/04/06
75/05/03
75/05/17
75/06/01
75/06/08
75/07/14
09 30
09 00
11 25
09 45
11 00
12 20
09 00
13 30
13 15
17 00
09 00
09 ^5
301SA1
48 24 40.0 114 20 30.0 4
fcrllTEFISH RIVER
30 7.5 WrilTEFISM
0/»HlTEFISH LAKE 130291
H4Y 93 BRQG IN TOWN OF WHITEFISH
11EPALES 2111204
0000 FEET DEPTH CLASS 00
0630
'S.N03
OTAL
G/L
0.00<»
0.008
0. 008
0.008
0.008
0.11?
0.005
0.005
0.060
0.010
0.005
C.005
00625
TOT KJEL
N
MG/L
0.600
1.300
O.«00
0.300
1.200
0.300
0.450
0.700
0.175
0.750
0.100
0.600
00610
NH3-N
TOTAL
MG/L
0.015
0.030
0.020
0.005K
0.008
O.Clis
0.125
0.030
0.015
0.010
0.005
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.015
0.005K
0.005K
0.005K
0.008K
0.032
0.005K
0.005K
0.005K
0.005K
0.005K
C.005K
00665
PHOS-TOT
MG/L t>
0.015
0.010K
0.010K
0.010K
0.020
0.032
0.010K
0.010
0.040
0.010K
0.010K
0.010K
K VALUE KNOWN TO BE
LESS THAN INOICATEO
-------
STORE! RETRIEVAL DATE 76/08/05
DATE TIME DEPTH N02S.N03
FROM OF
TO DAY FEET
74/10/06 10 30
75/05/02 15 40
75/05/17 15 00
75/06/01 1* 30
75/06/08 10 45
75/07/14 12 00
301t>wl
4d 26 20.0 114 23 20.0 4 .
BEAVER CREEK
30 7.5 3EAVES LAKE
r/*hITEFISri LAKE 130291
uRT NRTHKN RR 6SDG 1.1 MI E OF BEAVER LK
11EP4LES 2111204
0000 FEET DEPTH CLASS 00
0630
S.N03
OTAL
iG/L
0.016
0.015
0.010
0.005
0.005
0.005
00625
TOT KJEL
N
MG/L
0.500
1.250
0.150
1.200
0.500
0.200
03610
NH3-N
TOTAL
MG/L
0.020
0.030
0.0?5
0.020
0.045
O.C2S
00671
PHOS-OIS
OPTHO
MG/L P
0.005K
O.OOSK
O.OOSK
0.005
0.005
G.005K
00665
PHOS-TOT
MG/L P
C.010
0.010K
0.010K
0.010
0.020
0.01 OK
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATt 76/08/05
DATE TIME DEPTH
FROM OF
TO DAY FEET
74/10/06
74/11/03
74/12/08
75/01/05
75/03/09
75/04/06
75/05/03
75/05/17
75/06/01
75/06/08
75/07/14
11
09
11
10
13
04
14
14
16
10
10
15
30
40
30
00
30
10
30
00
00
30
3016C1
48 28 25.0 114 26 15.Q 4
LAZY CREEK
30 7.5 StAVferf LAKE
T/wHITEFISh LAKE 130291
JNPVu SO BROG ,3 MI * OF INEZ POUT
11EPALES 2111204
0000 FEET DEPTH CLASS 00
0630
'&NOJ
OTAL
IG/L
0.016
0.016
0.032
0.064
0.104
0.020
0.015
0.345
0.005
0.005
0.005
00625
TOT KJEL
N
MG/L
0.600
0.400
0.500
0.300
1.400
0.900
0.800
0.050K
1.050
0.300
0.950
00610
NH3-N
TOTAL
MO/L
0.040
0.010
0.010
0.005K
0.016
C.103
0.140
0.015
0.015
0.010
0.025
00671
PrtOS-OIS
ORTHO
MG/L P
0.005K
0.010
0.005
0.005
0.032
0.005K
0.005
0.005K
0.005
0.005K
0.010
00665
PHOS-TOT
MG/L P
0.010
0.010
0.010
0.020
0.032
0.020
0.025
0.010K
C.010K
0.020
0.020
K VALUE KNOHN TO BE
LESS THAN INDICATED
-------
t
STORET RETRIEVAL OATE 76/08/05
(
t
(
( DATE
FROM
TO
<
74/10/06
74/11/03
< 74/12/08
75/01/05
75/02/10
( 75/03/09
75/04/06
75/05/0?
( 75/05/17
75/06/01
75/06/08
, 75/07/14
i
TIMF. DEPTH
OF
DAY FEET
11 15
09 45
11 50
10 45
11 00
13 05
09 30
14 30
13 30
16 15
11 00
11 00
1 K VALUE KNOWN TO
LESS
(
00630
N02&N03
N-TOTAL
MG/L
0.016
0.016
0.016
0.048
0.072
0.272
0.025
0.045
0.075
0.085
0.070
0.005
BE
00625
TOT KJEL
N
MG/L
2.500
0.800
0.100K
0.100K
1.100
0.900
0.600
0.600
0.300
0.850
1.100
0.130
00610
NH3-N
TOTAL
MG/L
0.120
0.030
C.015
0.005K
0.025
0.024
0.025
0.025
0.005
0.015
0.045
0.015
00671
PnOS-OIS
ORTHO
MG/L P
C.005K
0.005
0.005K
0.005K
0.008K
0.019
0.010
0.005
0.005
0.005
0.005
0.005K
301
48 2
SWIF
30
T/WH
1 1\JO \J
•JINK V
11EP
000
00665
PHOS-TOT
MG/L P
0.005K
0.010K
0.010K
0.010K
0.030
0.030
0.010
0.040
0.040
0.060
0.070
0.010K
THAN INDICATED
48 29 00.0 114 25 50.0 4
HEEK
7.5 BEAVE* LAKE
T/WHITEFISH LAKE 130291
UNPVO RO bROG .9 MI Srf OF SMITH LAKE
5 2111204
EET DEPTH CLASS 00
-------
STORET RETRIEVAL DATE 76/08/05
DATE TIME DEPTH N02&N03
FROM OF
TO OAY FEET
74/10/06
74/11/03
74/12/08
75/01/05
75/02/10
75/03/09
75/04/06
75/05/04
75/05/17
75/06/01
75/06/08
75/07/14
11 30
09 45
12 15
11 30
11 00
11 15
10 00
14 50
14 00
16 30
11 30
11 30
3016E1
48 2e 35.0 11* 23 25.0 4
HELL ROARING CREEK
30 7.5 BEAVER LAKE
T/WHITEFISH LAKE 130291
H4Y <+87 BRDG .2 MI NE OF HELL ROARING PT
11EPALES 2111204
0000 FEET DEPTH CLASS 00
0630
IS.N03
OTAL
G/L
0.008
0.016
0.008
0.02*
C.070
0.176
0.015
0.020
0.010
0.020
0.025
0.010
00625
TOT KJEL
N
MG/L
0.400
1.300
0.100K
0.100K
0.800
0.300
0.450
0.550
0.092
1.050
0.950
0.200
00610
NH3-N
TOTAL
MG/L
0.015
0.040
0.025
0.016
0.032
0.008
0.130
0.020
0.085
0.015
0.025
0.005
00671
PH05-DIS
ORTHO
MG/L P
0.005K
0.005
0.005K
0.005K
0.015
0.040
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.005K
0.010K
0.010K
0.010K
0.030
0.040
0.010K
0.010K
0.010K
0.010K
0.015
0.010K
K VALUE KNOWN TO BE
LESS THAN INDICATED
------- |