U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKEDESMET
JOHNSON COUNTY
WYOMING
EPA REGION VIII
WORKING PAPER No,
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-------
REPORT
ON
LAKE DE SMET
JOHNSON COUNTY
WYOMING
EPA REGION VIII
WORKING PAPER No, 884
WITH THE COOPERATION OF THE
WYOMING DEPARTMENT OF ENVIRONMENTAL QUALITY
AND THE
WYOMING NATIONAL GUARD
JULY, 1977
-------
Foreword ii
List of Wyoming Lakes and Reservoirs iv
Lake and Drainage Area Map v
Sections
I. Introduction 1
II o Conclusions 1
IIL Lake and Drainage Basir, Characteristics 3
IVo Water Quality Summary 4
Vo Nutrient Loadings 8
VI o Literature Reviewed 11
VII. Appendices 12
-------
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.
-------
111
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
freshwater 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.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Wyoming Department of Environ-
mental Quality for professional involvement, to the Wyoming National
Guard for conducting the tributary sampling phase of the Survey,
and to those Wyoming wastewater treatment plant operators who
voluntarily provided effluent samples.
The staff of the Water Quality Division 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.
Brigadier General James L. Spence, The Adjutant General of
Wyoming, and Project Officer Colonel Donald L. Boyer, who directed
the volunteer efforts of the Wyoming National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
-------
NAME
Big Sandy
Boulder
Boysen
De Smet
Flaming Gorge
t
Fremont
61endo
Keyhole
Ocean
Seminoe
Soda
Viva Naughton
Woodruff Narrows
Yellowtail
IV
NATIONAL EUTRO.PHICATION SURVEY
STUDY RESERVOIRS
State of Wyoming
COUNTY
Sublette, Sweetwater .
Sublette
Fremont
Johnson , .
Sweetwater, WY; Daggett, UT
Sublette
Converse, Platte
Crook
, Fremont
;Carbon •
Sublette , - '
!
Lincoln
Uinta
Bighorn, WY; Bighorn,
Carbon, MT
-------
106°40'
0
1
1
0
LAKE DE SMET
<8> Tributary Sampling Site
X Lake Sampling Site;
2 4 6 8 Km.
1 1 1 1
1 2 3 4 5 Mi.
Scale
Map Location
4430-
44°25-
-------
LAKE De SMET
STORE! NO. 5604
I. INTRODUCTION
When completed, the dam construction underway during the Survey sam-
pling year will raise the level of Lake De Smet about 12 meters and will
more than double the storage capacity (Mueller, 1974). Also, because of
the construction, no water was diverted to the lake from Piney Creek and
Little Piney Creek during the year (Kavolock, 1976). Consequently, the
data presented in this report essentially are of little management signifi-
cance since it is unlikely the data will be representative of conditions
in the enlarged lake with normal stream diversions.
II. CONCLUSIONS
A. Trophic Condition:
The Survey data indicate Lake De Smet was mesoeutrophic during
the sampling year. It ranked sixth in overall trophic quality when
the 14 Wyoming lakes and reservoirs sampled in 1975 were compared
using a combination of six parameters*. Six of the water bodies
had less median total phosphorus, five had less median orthophos-
phorus, none had less but four had the same median inorganic nitro-
gen, 11 had less mean chlorophyll a_, and five had greater mean Secchi
disc transparency. No significant depression of dissolved oxygen
with depth occurred at any of the sampling times.
Survey limnologists observed an algal bloom in progress through-
out the lake in October.
See Appendix A.
-------
2
B. Rate-Limiting Nutrient:
Because of nutrient changes in the samples during shipment
from the field to the laboratory, the algal assay results are
not considered representative of conditions in the lake at the
times the samples were taken. The lake data indicate nitrogen
limitation at all sampling times.
C. Nutrient Controllability:
1. Point sources—No known municipal or industrial waste-
water treatment plants impacted Lake De Smet during the sampling
year. Septic tanks serving lakeshore dwellings were estimated
to have contributed 0.7% of the total load, but a shoreline sur-
vey would be necessary to determine the significance of those
sources.
The estimated phosphorus loading of 0.07 g/m2 during the sam-
pling year is a little less than that proposed by Vollenweider
(Vollenweider and Dillon, 1974) as an oligotrophic loading. How-
ever, the loading probably is considerably greater when water is
diverted to the lake from Piney and Little Piney creeks.
2. Non-point sources—It is estimated that non-point sources,
including precipitation, contributed 99.3% of the total phosphorus
load to the lake during the sampling year.
-------
3
HI. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
4-4-
A. Morphometry :
1. Surface area: 10.74 kilometers2.
2. Mean depth: 12.8 meters.
3. Maximum depth: >16.5 meters.
4. Volume: 137.937 x Id5 m3.
5. Mean hydraulic retention time: Unknown.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area Ckm2)* Qn3/sec)*
None (no diversions during
sampling year)
Minor tributaries &
immediate drainage - 15.2 0.167
Totals 15.2 0.167
2. Outlet -
Piney Creek 25.9** 0.323**
C. Precipitation***:
1. Year of sampling: 45.2 centimeters.
2. Mean annual: 42.3 centimeters.
t Table of metric conversions—Appendix B.
tt During sampling year (Mueller, op. cit.).
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake; lake level lowered during sampling year.
*** See Working Paper No. 175.
-------
4
IV. WATER QUALITY SUMMARY
Lake De Smet 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 two 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 ^analysis. The maximum depths sampled
were 12.5 meters at station 1 and 16.5 meters at station 2.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
-------
PARAMETER
TEMP
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02+N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 5/22/75)
2 SITES
RANGE MEAN MEDIAN
6.1 - 7.8 7.0 6.9
9.2 - 10.0 9.5 9.5
530. - 560. 542. 540.
8.5 - 8.6 8.6 8.6
169. - 172. 170. 170.
0.022 - 0.040 0.032 0.030
0.004 - 0.015 0.010 0.012
0.020 - 0.020 0.020 0.020
0.020 - 0.030 0.025 0.025
0.500 - 0.700 0.590 0.600
0.040 - 0.050 0.045 0.045
0.520 - 0.720 0.610 0.620
4.7 - 4.8 4.7 4.7
3.4 - 3.5 3.4 3.4
CHEMICAL CHARACTERISTICS FOR LAKE DE SMET
STORET CODE 5604
2ND SAMPLING ( 8/29/75)
2 SITES
RANGE
19.0
5.6
712.
8.4
162.
0.027
0.005
0.020
0.020
0.400
0.040
0.420
9.4
1.2
- 20.3
8.2
- 732.
8.6
- 170.
- 0.040
- 0.021
- 0.020
- 0.060
- 0.500
- 0.080
- 0.520
- 10.7
1.5
MEAN
19.6
7.3
720.
8.5
166.
0.033
0.010
0.020
0.027
0.412
0.047
0.432
10.0
1.4
MEDIAN
19.5
7.6
718.
8.6
165.
0.032
0.009
0.020
0.020
0.400
0.040
0.420
10.0
1.4
3RD SAMPLING (10/15/75)
2 SITES
MANGE MEAN MEDIAN
12.1 - 12.6 12.4 12.4
7.8 - 10.0 8.7 8.6
612. - 637. 629. 631.
6*6 ** o • 6 S • o 8*0
160. - 176. 165. 163.
0.026 - 0.074 0.044 0.037
0.003 - 0.006 0.004 0.004
0.020 - 0.020 0.020 0.020
0.020 * 0.060 0.031 0.030
0.400 - 0.600 0.544 0.600
0.040 - 0.080 0.051 0.050
0.420 - 0.620 0.564 0.620
16.0 - 21.4 18.7 18.7
1.8 - 2.4 2.1 2.1
-------
6
B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
05/22/75
08/29/75
10/15/75
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Centric diatoms
Fragllaria sp.
Diatoma sp.
Stephanodiscus sp_.
Flagellates
Other genera
Total
Melosira sp.
Flagellates
Aphanizomenon sp.
Anabaena sp.
Microcystis sp_.
Other genera
Total
Aphanizomenon sp.
Chroomonas (?) sp.
Cryptomonas sp_.
Anabaena sp.
Sphaerocystis sp.
Algal Units
per ml
5,052
1,160
414
373
124
165
7,288
1,749
875
807
673
673
807
5,584
2,338
984
287
123
41
2. Chlorophyll a_ -
Sampling
Date '
05/22/75
08/29/75
10/15/75
Total
Station
Number
2
1
2
1
2
3,773
Chlorophyll a
(yg/1)
4.8
4.7
9.4
10.7
21.4
16.0
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C. Limiting Nutrient Study;
Dye to significant changes In nutrients from the time of
sample collection to the beginning of the assays, the algal
assay results are not considered representative of conditions in
the lake at the times the samples were taken (05/22/75 and 10/15/75).
The lake data indicate that Lake De Smet was nitrogen limited
all three sampling times. This mean Inorganic nitrogen to ortho-
phosphorys ratios were 5 to 1 in May, 5 to 1 in August, and 13
to 1 In October; and nitrogen limitation would be expected.
-------
8
1 V. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Wyoming National
Guard collected monthly near-surface grab samples when possible from
each of the tributary sites indicated on the map (page v). Sampling
was begun in October, 1974, and was completed in September, 1975.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Wyoming District Office of the U.S. Geological Survey for the
outlet and the minor tributaries and immediate drainage. No diversions
to the lake from Piney and Little Piney creeks were made during the
sampling year.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("ZZ" of U.S.G.S.) were estimated using the mean concentrations
in Shell Creek at station C-l and the mean annual ZZ flow.
No known wastewater treatment plants impacted Lake De Smet during
the sampling year.
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
-------
9
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
None
b. Minor tributaries & immediate
drainage (non-point load) - 580 74.8
c. Known municipal STP's - None
d. Septic tanks* - 5 0.7
e. Known industrial - None
f. Direct precipitation** - 190 24.5
Total 775 100.0
2. Outputs -
Lake outlet - Piney Creek 1,030
3. Net annual P loss - 255 kg.
* Estimate based on 20 lakeshore dwellings; see Working Paper No. 175.
** See Working Paper No. 175.
-------
10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source y_r total
a. Tributaries (non-point load) -
None
b. Minor tributaries & immediate
drainage (non-point load) - 6,480 35.4
c. Known municipal STP's - None
d. Septic tanks* - 215 1.2
e. Known industrial - None
f. Direct precipitation** - 11,595 63.4
Total 18,290 100.0
2. Outputs -
Lake outlet - Piney Creek 11,835
3. Net annual N accumulation - 6,455 kg.
D. Mean Nutrient Concentrations in Ungaged Streams:
Mean Total P Mean Total N
Tributary Cone, (mg/1) Cone, (mg/1)
Little Piney Creek diversion 0.025 0.680
Shell Creek 0.110 1.230
* Estimate based on 20 lakeshore dwellings; see Working Paper No. 175.
** See Working Paper No. 175.
-------
11
E. 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 jneso-
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 0.07 loss* 1.7 0.6
Vollenweider phosphorus loadings
(g/m2/yr) based on surface area and outflow
of Lake De Smet during the sampling year:
"Dangerous" (eutrophic loading) 0.20
"Permissible" (oligotrophic loading) 0.10
* The loss of phosphorus probably was the result of the lowering of the
level of the lake during the sampling year.
-------
12
VI. LITERATURE REVIEWED
Kavolock, Paul, 1976. Personal communication (diversions from
Little Piney and P1ney Creeks). WY State Hydrologlst, Sheridan.
Mueller, John W., 1974. Lake De Smet enlargement and Healy Reser-
voir site, Johnson County. Adm. Rept., Proj. 3074-09-6701,
WY Game & Fish Dept., Cheyenne.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophlcatlon research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
-------
VI. APPENDICES
13
APPENDIX A
LAKE RANKINGS
-------
LA«E DAT* TO ME USEO IN RANKINGS
LA
-------
OF LAKES <»ITH HIGHER VALUES (NUMBER OF LAKMS »ITM HIGHER VALUES)
CODE LAKE NAME
5601 BIG SANOY RESERVOIR
5603 80ULDEP LAKE
5603 rtOYSEN RESERVOIK
5604 LAKE OE SMET
5605 FLAMING GORGE RESERVOIR
5606 FREMONT LAKE
5607 GLENDO RESERVOIR
5608 KEY HOLE WESERVOIR
5609 OCEAN LAKE
5610 SEMINOLE RESERVOIR
5611 SOOA LAKE
5612 VIVA NAUGHTON RESERVOIR
5613 MOODPUFF NARROWS RESERVO
561* YELLOWTAIL RESERVOIR
•'EDI ^N
TOT4L ^
0 (
92 (
46 <
54 (
85 (
100 (
31 (
69 <
38 (
62 (
?3 <
15 <
8 (
77 (
0)
12)
b)
7)
11)
13)
4)
9)
5)
8)
3)
2)
1)
10)
•IE 01 AN
Ii<0*G N
54 (
92 <
23 <
73 1
0 <
73 (
8 1
6? (
92 (
31 (
92 1
39 1
46 1
15 I
7)
ID
3)
! 9)
0)
! 9)
I 1)
; 8>
[ ll)
! 4)
: ID
! 5)
1 6)
I 2)
500-
MEAN StC
0 (
42 (
23 <
62 (
77 (
100 (
31 (
38 (
8 <
46 (
69 (
54 (
15 <
85 (
0)
12)
3)
6)
10)
13)
4)
5)
1)
6)
9)
7)
2)
11)
MEAN
CriLOriA
77 (
100 (
46 (
15 (
54 (
8b (
23 (
31 (
38 (
92 (
62 «
0 (
8 (
69 (
10)
13)
b)
2)
7)
11)
3)
4)
5)
12)
8)
0)
1)
9)
15-
MIN 00
77 (
92 (
8 (
69 (
46 (
100 (
38 <
15 <
85 <
54 (
0 <
27 (
27 (
62 (
10)
12)
1)
9)
6)
13)
5)
2)
11)
7)
0)
3)
3)
8)
MEDIAN
DISi OKlHO P
d 1
92 (
42 (
62 1
85 (
100 1
42 1
69 1
77 1
54 1
31 1
0 1
15 1
23 i
; i)
12)
; 5)
I 8)
11)
; 13)
i 5)
I 9)
I 10)
I 7)
[ 4)
I 0)
I 2)
I 3)
INOE*
NO
216
560
IdS
335
347
558
173
284
338
339
277
1J4
119
331
-------
LAKES RANKED 8Y INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 5602 BOULUErt LAKt 560
2 5606 FREMONT LAKE 558
3 5605 FLAMING GORGE RESERVOIR 347
* 5610 SEMINOLE RESERVOIR 339
5 5609 OCEAN LAKE 338
6 5604 LAKE OE SMET 335
7 5614 YELLOWTAIL RESERVOIR 331
8 5608 KEY HOLE RESERVOIR ?84
9 5611 SODA LAKE 277
10 5601 BIG SANDY RESERVOIR 216
11 5603 BOYSEN RESERVOIR 188
12 5607 GLENOO RESERVOIR 173
13 5612 VIVA NAUGHTON RESERVOIR 134
14 5613 WOODRUFF NArtROwS RESERVO 119
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles .
Meters x 3.281 * feet
-4
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 a Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLO* INFORMATION FOR WYOMING
03/05/76
LAKE CODE 5604
LAKE OESMET
TOTAL DRAINAGE AREA OF LAKE (SO KM)
25.9
SlJfi-CHAlNAGE
TRIBUTARY AREA(SO KM)
5604A1
5604ZZ
25.9
25.9
JAN
0.0
0.057
FEB
o.o
0.085
MAR
0.0
0.085
APR
0.0
0.113
MAY
0.0
0.425
NORMALIZED FLO*S(CMS)
JUN JUL AUG
0.0
0.7Q8
1.133
1.699
0.085
SEP
0.7Q8
0.085
OCT
0.283
0.085
NOV
0.0
0.085
DEC
0.0
0.057
MEAN
0.323
0.167
SUMMARY
TOTAL DRAINAGE AREA OF LAKE
SUM OF SUB-DRAINAGE AREAS
25.9
25.9
TOTAL FLO« IN
TOTAL FLOW OUT
2.01
3.82
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY
5604A1
5604ZZ
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
0.028
0.0
0.028
0.142
0.425
0.425
0.425
0.425
0.425
0.283
2.124
1.416
0.085
0.085
0.057
0.057
0.085
0.085
0.113
0.425
0.708
0.142
0.085
0.085
5
4
23
23
13
18
28
FLOW DAY
0.028
0.028
0.425
0.425
0.425
0.283 27
0.566
FLOW DAY
FLOW
0.425
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
4L DATE
DATE TIME DEPTH
FROM OF
TO DAY FEET
75/05/22 11
11
11
11
11
75/08/29 16
16
16
16
75/10/15 13
13
13
13
15 0000
15 0005
15 0015
15 0025
15 0041
0000
0005
0015
30 0031
45 0000
45 0005
45 0015
45 0038
30
30
30
00010
WATER
TEMP
CENT
7.7
6.9
6.9
6.8
6.5
?0.1
19.6
19.5
19.0
12.5
12.4
12.4
12o3
44 27 40.0 106 44 17,0 3
LAKE DE SMET
56019 WYOMING
090291
11EPALES
2111202
0045 FEET OEPTH CLASS
00300
00
MG/L
9.4
9.6
9.6
9.4
9.6
8.2
8.0
7.4
5.8
10.0
9.2
8.6
8.6
00077
TR6NSP
SECCHI
INCHES
132
48
72
00094
CNDUCTVY
FIELD
MICROMHO
560
542
539
539
537
732
718
716
712
629
624
612
633
00400
PH
SU
8.60
8.60
8.60
8.60
8.60
8.65
8.65
8.65
8.40
8.65
8.65
8.60
8.65
00410
T ALK
CAC03
MG/L
169
169
171
170
169
167
166
167
170
161
164
162
163
00610
NH3-N
TOTAL
MG/L
0.020
0.020K
0.030
0.030
0.030
0.020K
0.020K
0.020
0.060
0.020K
0.020
0.020
0.030
00
00625
TOT KJEL
N
MG/L
0.600
0.500
0.600
0.600
0.600
0.400
0.400
0.400
0.400
0.600
0.600
0.600
0.600
00630
N02t>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
Q.020K
00671
PHOS-OIS
ORTHO
MG/L P
0.005
0.004
0.009
0.006
0.013
0.005
0.005
0.006
0.021
0.004
0.004
0.003
0.003
DATE
FROM
TO
75/05/22
75/08/29
75/10/15
TIME DEPTH
OF
DAY FEET
11 15 0000
11 15 0005
11 15 0015
11 15 0025
11 15 0041
16 30 0000
16 30 0005
16 30 0015
16 30 0031
13 45 0000
13 45 0005
13 45 0015
13 45 0038
00665
PKOS-TOT
MG/L P
0.026
0.031
0.030
0.038
0.037
0.031
0.033
0.027
0.038
0.074
0.039
0.033
0.026
32217 00031
CHLRPHYL INCDT LT
A REMNING
UG/L PERCENT
4.8
9.4
21.4
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET KETRIEVAL UATE 76/08/05
44 26 54.0 106 45 18.0 3
LAKE OE SMET
56019 WYOMING
090291
11EPALES
2111202
0057 FEET DEPTH CLASS
DATE
FROM
TO
75/05/22
75/08/29
75/10/15
DATE
FROM
TO
75/05/22
75/08/29
75/10/15
TIME DEPTH
OF
OAY FEET
11 40 0000
11 40 0005
11 40 0020
11 40 0041
11 40 0054
14 15 0000
14 15 0005
14 15 0015
14 15 0033
15 15 0000
IS 15 0005
15 15 0015
15 15 0035
15 15 0053
TIME DEPTH
OF
OAY FEET
11 40 0000
11 40 0005
11 40 0020
11 40 0041
11 40 0054
14 15 0000
14 15 0005
14 15 0015
14 15 0033
15 15 0000
15 15 0005
15 15 0015
15 15 0035
15 15 0053
00010
WATER
TEMP
CENT
7.7
7.8
7.3
6.1
6.1
20.2
20.3
19.5
19.0
12.6
12.5
12.3
12.2
12.1
00665
PHOS-TOT
MG/L P
0.022
0.029
0.030
0.037
0.040
0.031
0.035
0.040
0.030
0.035
0.037
0.049
0.032
0.070
00300
DO
MG/L
9.8
10.0
9.4
9.2
9.4
7.8
8.0
7.4
5.6
8.6
9.0
8.2
8.2
7.8
32217
CHLRPHYL
A
UG/L
4.7
10.7
16.0
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
138 557
543
540
530
531
60 724
725
718
713
96 631
637
632
628
631
00031
INCDT LT
REMNING
PERCENT
00400
PH
SU
8.60
8.60
8.60
8.55
8.55
8.55
8.60
8.50
8.40
8.60
8.65
8.60
8.60
8.60
00410
T ALK
CAC03
MG/L
171
170
170
172
170
164
162
164
164
175
176
164
160
162
00610
NH3-N
TOTAL
MG/L
0.020
0.020
0.020
0.030
0.030
0.020K
0.020K
0.020K
0.040
0.030
0.030
0.030
0.040
0.060
00
00625
TOT KJEL
N
MG/L
0.600
0.500
0.600
0.600
0.700
0.400
0.500
0.400
0.400
0.400
0.600
0.500
0.400
0.600
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
0.020
0.020K
0.020K
00671
PHOS-OIS
ORTHO
MG/L P
0.013
0.012
0.015
0.013
0.015
0.010
0.009
0.011
0.016
0.006
0.006
0.004
0.004
0.004
K VALUE KNOrfN TO BE
LESS THAN INDICATED
-------
APPENDIX E
TRIBUTARY DATA
-------
"itifiEVAL UAit tb/Od/0'o
DATE TIME DEPTH
FROM OF
TO DAY FEET
74/10/05 15 10
74/12/04 15 00
75/02/23 12 45
75/03/23 12 55
75/04/13 09 00
75/05/16 08 30
75/05/27 10 15
75/09/28 16 00
00630
N02&N03
N-TOTAL
MG/L
0.016
0.136
0.151
0.220
0.680
0.025
0.005
00625
TOT KJEL
N
MG/L
2.100
1.300
1.500
0.550
0.700
0.250
0.450
0.600
00610
NH3-N
TOTAL
MG/L
0.035
0.165
0.144
0.015
0.060
0.065
G.015
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.010
0.015
0.024
0.015
0.015
0.075
0.015
0.005
11EPALES
0000 FEET
00665
PHOS-TOT
MG/L P
0.055
0.120
0.300
0.080
0.050
0.080
0.070
0.050
44 31 00.0 106 46 50.0 4
PINEY CREEK
56 7.5 BANNER
0/LAKE DE SMET 090291
BrtOG ON LOTY PAVED RO 16 MI Nri BUFFALO
2111204
DEPTH CLASS 00
-------
STORE! RETRIEVAL DATE 76/08/05
00630
DATE TIME DEPTH N026.N03
FROM OF N-TOTAU
TO DAY FEET MG/L
75/05/lrf 09 45
75/09/28 15 00
0.055
0.005
00625
TOT KJEL
N
MG/L
0.950
0.350
00610
NH3-N
TOTAL
MG/L
0.095
0.015
00671
PHOS-DIS
OPTHO
MG/L P
0.010
*4 31 40.0 106 48 15oO 4
LITTLE PINEY CREEK
56 7.5 BANNER
T/LAKE DE SMET 090291
&NK 50 FT N OF RO .7 MI SW OF KEARNY
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00665
PMOS-TOT
MG/L P
0.020
0.030
-------
STORE! RETRIEVAL DATE 7b/08/Gb
74/10/05
75/01/02
75/02/33
75/03/23
75/04/13
75/05/18
75/05/27
75/09/28
3604C1
44 30 20.0 106 46 30.0 4
SHELL CREEK
56 7.5 8ANNEW
T/LAKE OE SMET
300 FT FROM GRAVEL
HEPALES
090291
17.3 Ml N* dUFFALO
2111204
0000 FEET DEPTH CLASS 00
DATE
FROM OF
TO OAY
TIME DEPTH
FEET
16 00
14 30
14 00
12 35
12 40
08 30
09 15
10 30
14 30
00630
N02&N03
N-TOTAL
MG/L
0.008
0.104
0.224
0.220
0.055
0.140
C.OOb
C.010
0.005
00625
TOT KJEL
N
MG/L
1.400
0.500
0.500
2.900
0.850
1.350
0.400
2.000
0.400
OC610
NH3-N
TOTAL
MG/L
0.035
0.030
0.056
0.072
0.040
0.090
0.025
0.035
0.012
00671
PHOS-OIS
ORTHO
MG/L P
0.025
0.010
0.025
0.072
0.045
0.045
0.035
0.025
0.020
00665
PHOS-TOT
MG/L P
0.080
0.020
0.050
0.440
0.100
0.090
0.070
0.080
0.060
------- |