U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
ANGOSTURA RESERVOIR
FALL RIVER COUNTY
SOUTH DAKOTA
EPA REGION VI11
WORKING PAPER No, 600
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
^TG.P.O. 699-440
-------
REPORT
ON
ANGOSTURA RESERVOIR
FALL RIVER COUNTY
90U1H DAKOTA
EPA REGION VI11
WORKING PAPER No, 600
WITH THE COOPERATION OF THE
SOUTH DAKOTA DEPARTMENT OF ENVIRONMENTAL PROTECTION
AND THE
SOUTH &KDTA NATIONAL GUARD
JANUARY, 1977
-------
1
CONTENTS
Page
Foreward
List of South Dakota Study Lakes iv
Lake and Drainage Area Map v, vi
Sections
.. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Sumary 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 [ 3O3(e)], water
quality criteria/standards review [ 3O3(c)], clean lakes [ 3l4(a,b)],
and water quality monitoring [ lO6 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
111
Beyond the single lake analysis, broader based corre1ations
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 South Dakota Departments of
Environmental Protection and Game, Fish and Parks for professional
involvement, to the South Dakota National Guard for conducting the
tributary sampling phase of the Survey, and to those wastewater
treatment plant operators who voluntarily provided effluent samples.
Allyn Lockner, Secretary, and Blame Barker and Duane Murphy,
Department of Environmental Quality; Douglas Hansen, Department
of Game, Fish and Parks; and James Hayden, Director, State Lakes
Preservation Comittee 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 Duane L. Corning, the Adjutant General of South
Dakota, and Project Officer Colonel Robert 0. Chalberg, who directed
the volunteer efforts of the South Dakota National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
-------
lv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF SOUTH DAKOTA
LAKE NAME COUNTY
Albert Kiri sbury
Alvin Lincoln
Angostura Fall River
Brant Lake
Byron Beadle
Clear Marshall
Clear Minnehaha
Cochrane Deuel
Cottonwood Spink
Deerfield Pennington
Enemy Swim Day
Herman Lake
John Hamlin
Kampeska Codington
Madison Lake
Mitchell Davidson
Norden Hamlin
East Oakwood Brookings
West Oakwood Brookings
Pactola Pennington
Pickerel Day
Poinsett Brookings, Lake
Red Iron South Marshall
Richmond Brown
Roy Marshall
Sand Brown
Sheridan Pennington
Stockdale Custer
East Vermilijon McCook
Wall Minriehaha
Waubay Day
-------
L k.
Map Location
ANGOSTURA
RESERVOIR
® Tributary Sampling
X Lake
Sampling
5
-------
t4dp Locatj 0
ANGOSTURA RESERVOIR
®Tributary Sampling Site
) Drainage Area Boundary
Sewage Treatment Faciflty
y 3p Km.
5.
-------
ANGOSTURA RESERVOIR
STORET NO. 4603
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Angostura Reservoir is mesotrophic.
It ranked seventh in overall trophic quality when the 31 South
Dakota lakes sampled in 1974 were compared using a combination of
six water quality parameters*. One lake had less median total
phosphorus, none had less median dissolved orthophosphorus, 21
had less and one had the same median inorganic nitrogen, two had
less mean chlorophyll a, and four had greater mean Secchi disc
transparency. Depression of dissolved oxygen with depth occurred
at stations 1, 2, and 3 in July.
Survey limnologists did not observe any nuisance conditions
during their sampling visits.
B. Rate-Limiting Nutrient:
The algal assay results indicate that Angostura Reservoir was
phosphorus limited at the time the sample was collected (04/24174).
The reservoir data indicate phosphorus limitation at all sampling
stations and times with the exception of station 3 in September.
C. Nutrient Controllability:
1. Point sources--During the sampling year, point sources con-
tributed an estimated 13% of the total phosphorus load to Angostura
*See Appendix A.
-------
2
Reservoir. The wastewater treatment plant at Edgemont contributed
12.9%, and septic tanks serving lakeshore dwellings contributed
0.1%. However, the facility at Edgemont discharges intermittently
throughout the year, and additional study and a shoreline
survey would be needed to determine the actual phosphorus con-
tributions of these sources.
The phosphorus loading of 0.53 g/n1 2 /year is slightly more than
that proposed by Volleriweider (Vollenweider and Dillon, 1974) as a
eutrophic loading (see page 12). Because the reservoir is phosphorus
limited during most of the year, phosphorus inputs should be mini-
mized to the greatest practicable extent to maintain the present
quality of this water body.
2. Non-point sources--Non-point sources contributed 87% of the
total phosphorus load during the sampling year. The Cheyenne River
contributed 81.3%, and Horsehead Creek contributed 2.0%. The ungaged
minor tributaries and immediate drainage were estimated to have con-
tributed 0.4% of the total.
-------
3
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometrytt:
1. Surface area: 19.55 kilometers 2
2. Mean depth: 9.1 meters.
3. Maximum depth: 18.3 meters.
4. Volume: 177.905 x 106 m 3 .
5. Mean hydraulic retention time: 1.5 years.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km 2 )* ( m 3 /sec)*
Cheyenne River 22,558.9 3.840
Horsehead Creek 611.2 0.095
Minor tributaries &
immediate drainage - 379.3 0.021
Totals 23,549.4 3.956
2. Outlets -
Irrigation diversion - 1.758**
Cheyenne River 23,569.O * 2.120
Total 23,569.0 3.878
C. Precipitation****:
1. Year of sampling: 35.2 centimeters.
2. Mean annual: 40.7 centimeters.
- I - Table of metric conversions--Appendix B.
ft Murphey, 1974.
* For limits of accuracy, see Working Paper No. 175, “...Survey Methods,
1973-1976”.
** Anonymous, 1976.
Includes area of lake.
**** See Working Paper No. 175.
-------
4
III. LAKE WATER QUALITY SUMMARY
Angostura Reservoir was sampled three times during the open-
water season of 1974 by means of a pontoon-equipped Huey helicopter.
Each time, samples for physical and chemical parameters were collected
from one or more depths at four stations on the reservoir (see map,
pagev). buring each visit, a single’ depth-integrated (4.6 m or near
bottom to. surface)’ sample was composited from the stations for phyto-
plankton identification and enumeration; and during the first visit,
a single 18.9-liter depth-integrated sample wascomposited 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 18.3 meters at station 1, 15.2 meters at station 2, 8.8
meters at station 3, and 1.5 meters at station 4.
The sampling results are presented in full in Appendix 0 and are
suniiiarized in the following table.
-------
1ST SAMOLI , ( 4/24/74)
. SITES
A. SUMN4APY OF - ‘rSICAL Ar’jD Cr- EMICAL CI-1APACtE jSrICS FO ANGOSTURA RESER OI
SIOPET CODE 4b03
2ND SAMPLING C 7/15/74)
4 SITES
2.0
1 9k34.
3RD SAMPLING C 9/11/74)
4 SITES
- 25.3
— 17.0
- 2530.
— 8.2
MEAN
22.3
6.5
2335.
8.0
MEDIAN
24.3
6.8
2430.
8,0
0.022
0.003
0.090
0.040
0.? Ou
0.140
0.3?u
— 0.041
— 0.00A
— 0.150
— 0.090
— 0.600
— 0.240
0.720
PARAMETER
RANGE - MEAN MEDIAN
RANGE
4NGE
MEAN
MEDIAN
TEMP (C)
.7.1
— 10,9 9.6 9.6
17.9
— 18.6
18.4
18.4
DISS OXY (MG/L)
9.4
— lO .t 9.Q 9.
5.0
— 7.9
6.9
7.2
CNDCTVY (MCROMO)
134’..
— 1579. 1435. 1416.
1M69.
— 1941.
1918.
1925.
Pri (STAND UNITS)
D*****
********4 ************
7.8
— 8.1
8.u
5.1
FOT ALi< (MG/L)
131.
— 140. 134. 133.
140.
— 151.
144.
142.
135.
— 141.
137.
137.
TOT P (MC’/L)
0.028
0.012
— 0.051
0.020
0.016
0.008
— 0.041
0.015
0.012
ORTHCI P (MG/L)
0.004
0.003
— 0.015
0.008
0.007
0.003
— 0.009
0.005
0.004
N02.N03 (MG/L)
0.110
0.090
— 0.230
0.139
0.110
0.050
— 0.090
0.067
0.0-10
AMMONIA (MG/L)
0.050
0.030
— 0.130
0.069
0.060
0.040
— 0.100
0.061
0.050
‘(JEL N (MG/L)
0.300
0.300
— 0.900
0.367
0.300
0.200
— 1.100
0.580
0.700
INO G N (MG/L)
0.160
0.140
— 0.360
0.208
0.180
0.100
— 0.180
0.128
0.120
TOTAL N (MG/LI
0.430
0.390
— 1.060
0.506
0.470
0.260
— 1.150
0.647
0.750
CHL.RPYL A (Uc,/L)
1.3
1.7
- 14.9
5.6
2.ej
1.4
— 5.b
2.9
2.4
SECCMI (METERSI
0.9
0.029
0.004
0.113
0.052
0.341
0.165
0.41,0
2.6 1.8
4.6 2.6 2.4
U,
-------
6
B. Biological characteristics:
1. Phytoplankton
Sampling Dominant Alga] Units
Date Genera p ml
04/24/74 1. Chroomonas Sp . 1,167
2. Synedra sp . 367
3. Ankistrodesmus Sp . 133
4. Asterionella Sp . 67
5. Cryptomonas SP . 66
Other genera _____
Total 1,801
07/15/74 1. Chroomonas Sp . 493
2. Carteria S . 308
3. Gyrosigma Sp . 92
4. Nitzschia sp . 92
5. Merismopedia sp . 92
Other genera 156
Total 1,233
09/11/74 1. Cryptomonas sp . 276
2. Chroomonas sp . 246
3. Dinobryon p . 61
4. Phacus Sp . 31
5. Glenodinium p . 31
Other genera 30
Total 675
2. Chlorophyll a —
Samp1ing Station Chlorophyll a
Date Number ( ig/1 )
04/24/74 1 1.4
2 1.3
3 2.3
4 5.5
07/15/74 1 3.0
2 1.7
3 2.7
4 14.9
09/11/74 1 2.0
2 1.4
3 5.6
4 2.8
-------
7
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N
___________ Conc. (mgflj Conc. (mg/i ) _____________
0.007 0.153
0.057 0.153
0.057 1.153
0.007 1.153
2. Discussion —
The control yield of the assay alga, Selenastrurn capri-
cornutum , indicates that the potential primary productivity
of Angostura Reservoir was low at the timethe sample was
taken (04/24/74). Also, the increase in yield with the
addition of phosphorus alone indicates that the reservoir
was limited by phosphorus at that time. Note that the
addition of nitrogen alone resulted in a yield which was
no greater than that of the control.
The reservoir data indicate phosphorus limitation as well.
The mean inorganic nitrogen/orthophosphorus ratios were 20/1
or greater at all sampling stations and times with the excep-
tion of station 3 in September (N/P = 12/1).
Spike (mg/l )
Control
0.050 P
0.050 p + 1.0 N
1.0 N
Maximum yield
( mg/l-dry wt. )
0.1
6.3
12.7
0.1
-------
8
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the South Dakota
National Guard collected monthly near-surface grab samples from each
of the tributary sites indicated on the map (page vi), except for the
high runoff months of March and May when two samples were collected.
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 South Dakota District Office of the U.S. Geological Survey for the
tributary sites nearest the reservoir.
In this report, nutrient loads for sampled tributaries were cal-
culated using mean annual concentrations and mean annual flows. Nutrient
loads shown are those measured minus point-source loads, if any.
Nutrient loads for the irrigation diversion and unsampled “minor
tributaries and immediate drainage” (“U” of U.S.G.S.) were estimated
using the mean concentrations in the Cheyenne River at station A-l (for
the diversion) and in Horsehead Creek at station B-i (for ZZ) and multi-
plying by the annual irrigation diversion and mean annual ZZ flows,
respectively.
The operator of the Edgemont wastewater treatment plant provided
monthly effluent samples; however, corresponding flow data were not
available. Therefore, nutrient loads were estimated at 1.134 kg P and
3.401 kg N/capita/year, and flows were estimated at 0.3785 m 3 /capita/day.
-------
9
A. Waste Sources:
1. Known municipal*
Pop. Mean Flow Receiving
Name Served Treatment ( m 3 /d) Water
Edgemont 1,174 stab. pond 444.4 Cheyenne River
2. Known industrial - None
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kgP/ %of
Source yr total
a. Tributaries (non-point load) -
Cheyenne River 8,360 81.3
Horsehead Creek 200 2.0
b. Minor tributaries & imediate
drainage (non-point load) - 45 0.4
c. Known municipal SIP’s -
Edgemont 1,330 12.9
d. Septic tanks - 5 0.1
e. Known industrial - None - -
f. Direct precipitation*** - 340 3.3
Total 10,280 100.0
Lake outlet - Irrigation diversion 500
Cheyenne River 600
Total i,iio
3. Net annual P accumulation - 9,180 kg.
* Treatment plant questionnaire.
** Estimate based on 22 lakeshore dwellings; see Working Paper No. 175.
See Working Paper No. 175.
-------
10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kgN/ %of
Source , yr total
a. Tributaries (non-point load) -
Cheyenne River 150,770 83.6
Horsehead Creek 3,450 1.9
b. Minor tributaries & iimiediate
drainage (non-point load) - 765 0.4
c. Known municipal SIP’s -
Edgemont 3,995 2.2
d. Septic tanks* - 235 0.2
e. Known industrial - None -
f. Direct precipitation - 21,105 11.7
Total 180,320 100.0
2. Outputs -
Lake outlet - Irrigation diversion 82,165
Cheyenne River 99,080
Total 181,245
3. Net annual N loss - 925 kg.
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km 2 /yr kg N/km 2 /yr
Cheyenne River <1 7
Horsehead Creek <1 6
* Estimate based on 22 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 oligotrophjc
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between “dangerous”
and “permissible”.
Note that Vollenwejder’s model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/n1 2 /yr 0.53 0.47 9.2 lOss*
Vollenweider phosphorus loadings
(g/m 2 /yr) based on mean depth and mean
hydraulic retention time of Angostura Reservoir:
“Dangerous” (eutrophic loading) 0.50
“Permissible” (oligotrophic loading) 0.25
* There was an apparent loss of nitrogen during the sampling year. This may
have been due to nitrogen fixation in the lake, solubilization of pre-
viously sedimented nitrogen, recharge with nitrogen-rich ground water,
unknown and unsampled point sources discharging directly to the lake, or
underestimation of nitrogen loads. Whatever the cause, a similar nitro-
gen loss has occurred at Shagawa Lake, Minnesota, which has been inten-
sively studied by EPA’s former National Eutrophication and Lake Restora-
tion Branch (Maleug et a]., 1975).
-------
12
V. LITERATURE REVIEWED
Anonynious, 1976. Water resources data for South Dakota, water year
1975. Water Data Rept. SD—75-1, U.S.G.S., Huron.
Malueg, Kenneth W., D. Phillips Larsen, Donald W. Schults, and Howard
1. Mercier; 1975. A six-year water, phosphorus, and nitrogen
budget for Shagawa Lake, Minnesota. Jour. Env. Qua]., vol. 4,
no. 2, pp. 236-242.
Murphey, Duane G., 1974. Personal conullunication (reservoir mor-
phonietry). SD Dept. of Env. Prot., Pierre.
Vollenwejder, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research. Nati.
Res. Council of Canada Pub]. No. 13690, Canada Centre for Inland
Waters, Burlington, Ontario.
-------
13
Vi. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE MEDIAN MEDIAN 500— MEAN 15— MEDIAN
CODE LAKE ‘NAME TOTAL P INORG N MEAN SEC CHLORA MIN DO DISS ORTr O I-
‘.601 LAKE ALBERT 0.321 0.170 4.. .111 106.289 9.200 0.019
4b0 ALVIN LAKE 0.067 0.973 442.833 4.700 9.400 0.017
4603 ANGOSTIJRA RESERVOIR 0.019 0.160 423.333 3.717 13.000 0.005
4604 BRANT LAKE 0.194 0.130 432.833 34.150 11.800 0.113
4605 LAKE. BYRON 0.443 0.370 488.333 149.350 9.003 0.146
4606 CLEAR LAKE 0.027 0.075 430.167 11.983 8.800 0.009
4607 CLEAR LAKE 1.400 0.270 495.333 691.000 7.000 0.468
4608 COCHRANE LAKE 0.037 0.150 446.000 15.683 15.000 0.008
4609 COTrONw000 LAKE 0.685 0.265 490.333 112.017 8.600. 0.417
4610 DEERFIELD RESE VO1R 0.033 0.080 303.333 3.650 15.000 0.022
4611 ENEMY WIH LAKE 0.037 0.085 442.600 14.200 8.200 0.013
4612 LAKE HERMAN 0.340 - 0.155 485.000 58.733 8.600 0.174
4613 Si JOHN LAKE 0.348 0.080 489.400 120.880 9.800 0.025
4614 LAKE KAMPESKA 0.220 0.105 468.889 20.567 8.200 0.128
4615 MADISON LAKE 0.250 0.090 445.555 22.578 14.000 0.107
4616 LAKE MITCHELL 0.099 0.085 465.833 14.883 13.800 0.015
4617 LAKE NORDEN 0.256 0.165 488.667 46.800 10.000 0.050
4618 OAXWOO() LAKE EAST 0.146 0.175 487.000 113.600 10.000 0.009
4619 OAK OOD LAKE WEST 0.181 0.135 485.833 159.667 9.600 0.021
4620 PACIOLA RESERVOIR 0.011 0.070 248.444 1.478 11.000 0.006
4621 PICKEREL LAKE 0.049 0.095 439.833 15.833 9.600 0.009
4622 LAKE POINSETT 0.115 0.315 468.444 40.211 10.000 0.023
4623 LAKE RED IRON SOUTH 0.042 0.110 430.333 6.883 7.600 0.010
4624 RICHMOND LAKE 0.187 0.150 410.000 18.467 10.000 0.144
4625 ROY LAKE 0.034 0.070 431.000 13.333 11.000 0.010
4626 SAND LAKE 0.489 0.110 471.800 65.790 12.800 0.288
4627 SHERIDAN LAKE 0.053 0.105 394.000 15.433 15.000 0.016
4628 STOCKAQE LAKE 0.233 0.150 432.000 25.400 15.000 0.109
-------
LAK DATA TO BE USED IN RANKINGS
LAKE
•
MEDIAN
MEDIAN
500—
CODE
LAKE
NAME
TOTAL P
INORG N
MEAN SEC
: EAN
CHLORA
15—
MIN DO
MEDIAN
DISS ORTHO P
4629
LAKE
VERMILLION
0.211
0.100
472.833
br. 800
9.200
0.092
4630
WALL
LAKE
0.194
0.160
441.667
55.267
7.400
0.076
4631
WAUBAY
LAKE NORTH
0.098
-------
KC NT OF LAPc 5 WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
500— MEAN
MEAN SEC CMLORA
15—
MIN DO DISS OF THO P
LAKE
CODE
.
LAKE NAME
MEDIAN
TOTAL P
MEDIAN
INORG N
MEDIAN
iNDEX
NO
4601
LAKE ALBERT
20 ( 6)
20 (
6)
10 (
)
23
( 7)
68 (
20)
60
C 18)
201
4602
ALVIN LAKE
67 C 20)
0 C
0)
57 (
17)
90
C 27)
63 C
19)
63
C 19)
340
603
ANGOSTURA RESERVOIR
97 C 29)
30 C
9)
87 (
26)
93
( 28)
20 C
6)
100
C 30)
427
4604
BRANT LAKE
40 C 12)
53 C
16)
70 C
21)
47
C 14)
27 C
8)
23
C 7)
260
4605
LAKE BYRON
10 C 3)
3 C
1)
17 C
5)
7
( 2)
73 C
22)
13
C 4)
123
4606
CLEAR LAKE
93 C 28)
93 C
28)
83 (
25)
83
C 25)
77 C
23)
90
( 27)
519
4607
‘608
4609
CLEAR LAKE
COCiIRAP,iE LAKE
COTTONwOOD LAKE
0 C 0)
83 C 25)
3 .( 1)
10 C
40 C
13 C
3)
11)
4)
0 0)
50 ( 15)
3 C 1)
0
67
20
C 0)
( 20)
C 6)
100 C
5 C
82 C
30)
0)
24)
0
93
3
( 0)
( 28)
1 1)
110
338
124
4610
DEERFIELD RESERVOIR
90 C 27)
88 C
26)
97 C
29)
97
C 29)
5 1
0)
53
1 16)
430
4611
ENEMY SWIM LAKE
80 ( 24)
82 C
24)
60 C
18)
77 4 23)
88 4
26)
73
4 22)
460
4612
LAKE HERMAN
17 ( 5)
33 (
10)
27 C
8)
33 C 10)
82 (
24)
10
C 3)
202
4613
ST JOHN LAKE
13 C 4)
88 C
26)
7 C
2)
13 4 4)
53 C
16)
43
4 13)
217
.4614
LAKE KAMPESKA
33 ( 10)
65 1
19)
40 1
12)
57 1 17)
88 4
26)
20
1 6)
303
4615
MADISON LAKE
27 4 8)
77 C
23)
53 C
16)
53 C 16)
13 1
4)
30
( 9)
2S3
4616
LAKE MITCHELL
60 4 18)
82 C
24)
47 C
14)
73 C 22)
17 4
5)
- 70
(21)
349
4617
LAKE NOROEN
23 ( 7)
23 C
7)
13 C
4)
40 C 12)
45 1
12)
40
1 12)
184
4618
4619
OAKW000 LAKE EAST
OAKW000 LAKE WEST
53 4 16)
50 C 15)
17 C
50 4
5)
15)
20 4
23 4
6)
7)
17 ( 5)
3 C 1)
45 C
58 4
12)
17)
85
57
C 2)
C 17)
237
241
4620
4621
PACTOLA RESERVOIR
PICKEREL LAKE
100 C 30)
73 C 22)
98 C
73 C
29)
22)
100 4
67 C
30)
20)
100 C 30)
63 C 19)
35 C
58 (
10)
17)
97
85
C 29)
4 25)
530
419
4622
4623
LAKE POINSETT
LAKE RED IRON SOUTH
57 ( 17)
77 C 23)
7 4
58 (
2)
17)
43 4
80 C
13)
24)
- 43 C
87 C
13)
26)
45 C
93(
12)
28)
47
78
4 14)
C 23)
242
473
4624
RICHMOND LAKE
47 C 14)
40 (
11)
90 C
27)
60 C
18) 45 C
12)
17
C 5) .
299
4625
ROY LAKE
•
87 ( 26)
98 C
29)
77 C
23)
80 (
24)
35 (
10)
78
C 23)
455
4626
4627
SAND LAKE
SHERIDAN LAKE
7 ( 2)
70 4 21)
58 4
65 C
17)
19)
33 C
93 (
10)
26)
30 (
70 C
9)
21)
23 C
5 1
7)
7
2)
158
.4628 STOCKADE LAKE
30 9) 40 ( 11) 73 C 22) 50 C 15
5 C 0) . 27 C R) 225
-------
PERCENT OF
LAP(ES. WITH
HIGHER VALUES (NUM8ER. OF
LANES WITH HIGHER VALUES)
LAKE
CODE
LAKE
NAME
MEDIAN
TOTAL P
MEDIAN
INORG
N
500—
MEAN
SEC
MEAN
CHLORA
15—
MIN
DO
MEDIAN
DISS ORTHO
P
INDEX
NO
4629
LAKE
VERMILLION
37 ( 11)
70 (
21)
30
( 9)
27 ( 8)
68 (
20)
33 C 10)
265
4630
WALL
LAKE
43 ( 13)
27 (
8)
63
C 19)
37 C 11)
97 C
29)
37 C 11)
304
4631
WAUBAY LAKE NORTH
63 ( 19)
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 4620 PACTOLA RESERVOIR 530 -
2’ 4606 CLEAR LAKE 519
3 4623 LAKE RED IRON SOUTH 473
4 4611 ENEMY 5W 114 LAKE 460
5 4625 ROY LAKE 455
6 4610 DEERFIELD RESERVOIR 430
7 46( 3 ANGOSTURA RgSERVOIR 427
8 4621 PICKEREL LAKE 419
9 4627 SHERIDAN LAKE 370
10, 4616 - LAKE MITCHELL 349
11 4602 ALVIN LAKE 340
12 4608 COCHRANE LAKE 338
13 4630 WALL LAKE 304
1 4614 LAKE KAMPESKA O3
15 4624 RICHMOND LAKE 299
16 4629 LAKE VERMILLION 265
Il 4604 BRAPJT LAKE 260
JR 4615 MADISON LAKE 253
19 4622 LAKE POINSEIT - 242
20 4619 OAKw000 LAKE WEST 241
21 4631 WAIJBAY LAKE NORtH 237
22 6618 OAK OOD LAKE EAST 237
23 4628 STOCKADE LAKE 225
24 4613 -ST JOHN LAKE 217
25 4612 LAKE HERMAN 202
26 4601 LAKE ALBERT 201
27 4617 LAKE NORDEN 184
28 4626 SAND LAKE 158
-------
LAP(ES RANKCD BY INDEX NOS.
R ç LA cE CODE LAKE NAME INDEX NO
29 4609 COTTONWOOD LAKE 124
30 4605 LAKE BYRQN 123
31 4607 CLEAR LAKE 110
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 miles
Meters x 3.281 feet
Cubic nieters x 8.107 x 1O 4 = 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 lbs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR SOUTrI DAKOTA
06/04/76
NOTE AVERAGE YEARLY
MEAN MONTHLY FLOWS
TRIBUTARY MONTil YEAR
4603A1 10 7’.
11 74
12 74
1 75
2 75
3 75
4 75
5 75
6 75
7 75
8 75
9 75
4 603A2 10 74
11 74
12 74
1 75
2 75
3 75
4 75
5 75
6 75
7 75
8 75
9 75
TOTAL DRAINAGE AREA OF LAKE =
SUM OF Sub—DRAINAGE AREAS =
DIVERSION= 55,446,246 m 3
AND DAILY FLOWS(CMS
MEAN FLOW DAY
0.057 12
0.057 10
0.028 16
0.028 13
0.028 10
0.057 11
0.028 28
0.028 8
0.028 12
0.028 21
0 • 028
0.028 8
0.708 12
0.991 10
0.991 16
0.708 13
1.557 10
3.115 11
8.495 25
2.265 8
.663 12
0.566 21
0.566
0.425 8
23569.0
23569.0
47.43
25.49
LAKE CODE
4603 A’ GOSTURA RES.
TOTAL
DRAINAGE AREA
OF LAKE(S0 KMJ
23 ô9.O
TRIbuTARY
Sub—DRAINAGE
AREA(S0 rcM)
JAN FF 3
MAP
AP-
MAY
NO ALIZEr FLOWS(CMS)
JUN JUL AUG
SEP
OCT
NOV
DEC
MEAN
4603A1
4603A2
4ä03rLj
46031Z
23569.0
22558.9
611.2
398.9
0.59 0.91
0.65 1.59
0.0 0.0
0.0 0.0
1.05
5.21
0.057
0.057
0.’ 9
3.28
0.227
0.0?8
4.16
6.82
0.142
0.025
10.17 5.75 0.40
14.22 7.14 3.17
0.227 0.283 0.142
0.057 0.057 0.028
0.34
1.56
0.057
0.0
0.31
0.85
0.0
0.0
0.37
0.82
0.0
0.0
0.45
0.74
0.0
0.0
2.12
3.84
0.095
0.021
TOTAL FLOW IN
TOTAL FLOW OUT =
FLOW
SUMMARY
DAY FLOW DAY
25 0.028
22 0.028
25 3.115
22 1.416
FLOW
0.057
0.057
0.028
0 .028
0.028
0.028
0.028
0.028
0.028
0 .028
0.028
1.048
1.50 1
1.416
1.133
1.133
3.143
1.8 12
1.416
1.133
0.396
0.340
-------
TRISuTAI y FLOw INFORMATION FOR SOUTH DAIcOTA 06/04/76
LAKE CODE 4603 ANGOSTuRA ES.
‘E.\N MONTHLY FLOWS AND LJAIL 1 FLO S(CMS)
TRI8UTA Y NONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
4603b1 10 74 0.0 1? 0.0
11 7 ’. 0.0 10 0.0
12 74 0.0 16 0.0
1 75 0.0 13 0.0
2 75 0.0 10 0.0
3 75 0.0 11 0.0 0.0
4 75 0.006 28 0.014
5 75 0.003 8 0.006
6 75 0.0 12 0.0
7 75 0.0 21 0.0
8 75 0.0
9 75 0.0 8 0.0
460311 10 74 0.0
11 7’. (1.0
12 74 0.0
1 75 0.0
2 75 0.0
3 75 0.0
4 75 0.003
5 75 0.001
6 7S 0.0
7 75 0.0
8 75 0.0
9 75 0.0
-------
APPENDIX D
PIIYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 76/05/03
460301
43 20 3’ 0 103 26 17.0 3
ANGOSTURA RESE VOJN
46fl +7 SOUfl-i DAKOTA
0 0 491
1 1EPALES 2111202
0065 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00413 00610 00625 00630 00b71
DATE TIME DEPTH WATER 00 TRANSP CNDUCTVY PH I ALI< NH3-N TOT KJEL N02&N03 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTIIO
TO DAY FEET CENT MG/i. INCHES MZCROMHO SO MG/L MG/L MG/L MG/L MG/L P
74/04/24 13 55 0000 9.6 180 1425 131 0.040 0.600 0.120 0.003
13 55 0005 9.6 10.0 1424 131 0.040 0.400 0.110 0.005
13 55 0015 9.4 10.0 1418 132 0.050 0.200 0.120 0.004
13 55 0030 8.1 10.0 1374 131 0.040 0.300 0.120 0.004
13 55 0060 7.1 9.6 1344 133 0.060 0.300 0.130 0.004
74/07/15 13 55 0000 25.0 17,0 120 2476 8.10 140 0.050 0.400 0.090 0.013
13 55 0005 25.0 7.8 2477 8.20 140 0.050 0.300 0.110 0.006
13 55 0025 22.4 6.2 2298 8.10 142 0.060 0.300 0.140 0.0 11
13 55 0035 16.6 3,8 2032 7.80 150 0.030 0.300 0.170 0.004
13 55 0054 15.8 2.0 1984 7.70 151 0.130 0.400 0.230 0.009
74/09/11 U 25 0000 18.6 7.4 108 1937 8.09 136 0.050 0.400 u.060 0.006
11 25 0005 18.6 7.9 1937 8.09 136 0.060 0.300 0.060 0.008
11 25 0015 18.6 7.0 1937 8.09 136 0.040 0.200 0.060 0.003
11 25 0025 18.2 5.8 1925 7.93 137 0.060 0.200 0.070 0.003
11 25 00)5 18.0 5.6 1919 7.87 141 0.090 0.200 0.090 0.003
11 25 0049 17.9 5.0 1917 7.83 138 0,090 0.300 0.080 0.004
00665 32217 00031
DATE TIME DEPTH PHOS—TOT CHLRPHYL INCOT LI
FROM OF A REMNING
TO DAY FEET MG/L P UG/L PERCENT
74/04/24 13 55 0000 0.028 1.4
13 55 0005 0.038
13 55 0015 0.022
13 55 0030 0.025
13 55 0060 0.029
74/07/15 13 55 0000 0.016 3.0
13 55 0005 0.013
13 55 0025 0.012
13 55 0035 0.013
13 55 0054 0.033
74/09/11 11 25 0000 0.012 2.0
11 25 0005 0.008
11 25 0015 0.008
11 25 0025 0.008
11 25 0035 0.009
11 25 0049 3.012
-------
STOREr RETRIEVAL DATE 76/05/03
74/04/24 14 35 0000
14 35 0005
14 35 0025
14 35 0049
74/07/15 13 25 0000
13 25 0005
13 25 0020
13 25 0030
23 25 0050
74/O /1t 10 50 0000
10 50 0005
10 co 0015
10 50 0025
10 50 0040
00665 32217
PHOS—TOT CHLRPHYL
A
MG/L P UG/L
0.0 22
0.0 30
0.0 25
0.0 23
0.013
0.0 17
0.012
0.0 13
0.0 14
0.0 10
0.011
v.019
0.017
0.016
00031
INCDT LT
REMNING
PERCENT
460302
43 1 3 35. 103 25 39.0
ANGOSTURA RESERVOIR
46047 SOUTh DAKOTA
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
3
00300 00077
DO TRANSP
SECCH I
MG/L INCHES
00094
CNDUCTVY
FIELD
MICROMMO
09 041
2111202
DEPTH CLASS 00
11E ALES
0053 FEET
00400 00410
PH TALK
CACO3
SU MG/L
00020
wATER
TEMP
CENT
10.2
10.0
8.7
8.0
24.6
24 • 6
24.3
19.1
16.1
18.4
18.4
18.4
18.4
74/04/24 14 35 0000
14 35 0005
14 35 0025
14 35 0049
74/07/15 13 25 0000
23 25 0005
13 25 0020
13 25 0030
13 25 0050
74/09/11 10 50 0000
10 50 0005
10 50 0015
10 50 0025
10 50 0040
10.0
9.8
9.8
7.0
7.2
6.8
4.4
3.2
7.2
7.0
7.2
7.0
120 1456
1449
1392
1367
120 2462
2456
2430
2138
2000
48 1923
1927
1927
1927
1923
00610
NH 3-N
TOTAL
MG/ L
0.050
0.050
0.0 50
0.0 50
0.050
0.050
0.0 50
0.080
0.0 80
0.0 50
0.070
0.0 50
0.050
0.100
133
134
134
135
142
141
142
145
149
137
140
137
138
135
00625
TOT KJEL
N
MG/ L
0.400
0.300
0.40 0
0.400
0.300
0.300
0.30 0
0.300
0.300
0.800
0.700
0.60 0
0.700
0.800
DATE
FROM
TO
8.10
8.20
8.20
7.90
7.70
8.03
8.13
8.09
8.09
8.07
00630
NO2 NO3
N—TOTAL
MG/L
0.120
0.110
0.120
0.110
0.100
0.100
0.110
0.190
0.230
0.0 70
0.0 80
0.0 70
0.0 70
0.070
FIME DEPTH
OF
DAY FEET
00671
PrIOS—DIS
OR T MO
MG/L P
0.003
0.005
0.008
0.004
0.007
0.007
0.006
0.007
0 .009
0.003
0 .004
0.005
0 .006
0.004
1.0
1.3
1.7
1.4
-------
STORET RETRIEVAL DATE 76/05/03
460303
43 17 27 103 23 27.0 3
ANGOSTURA RESERVOIR
‘.60’.7 SOUTH DAKOTA
090491
1 1EPALES 2111202
0033 FEET DEPTH CLASS 00
00010 00300 0 077 000 4 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 1 ALK NH3—N TOT KJEL N02&N03 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTPIO
TO DAY FEET CENT MG/L INCMES MICROMHO SU MG/L MG/L MG/L MG/L MG/L P
74/04/24 15 00 0000 10.9 72 1414 133 0.050 0.300 0.100 0.005
15 00 0005 10.5 9.6 1414 132 0.050 0.300 0.100 0.004
15 00 0015 9.7 9.8 1394 132 0.050 0.300 0.100 0.003
15 00 0029 8.6 9.4 1385 134 0.090 0.300 0.150 0.003
74/07/15 13 05 0000 24.7 7.0 68 2494 8.00. 143 0.070 0.400 0.110 0.009
13 05 0005 24. 7.0 2491 8.10 143 0.060 0.300 0.100 0.009
13 05 0015 23.7 6.4 2421 8.00 142 0.060 0.300 0.090 0.007
13 05 0021 21.8 3.8 2330 7.90 146 0.130 0.400 0.160 0.015
74/09/11 10 00 0000 18.5 7,4 24 1869 7.89 137 0.070 1.100 0.050 0.009
10 00 0005 18.4 7.6 1879 8.05 137 0.050 0.800 0.050 0.009
10 00 0015 18.5 6.2 1875 7.97 136 0.050 0.700 0.050 0.008
00665 32217 00031
DATE TIME DEPTH PHOS—TOT CHLRPHYL INCOT LT
FROM OF A REMNING
TO DAY FEET MG/L P UG/L .°ERCENT
74/04/24 15 00 0000 0.030 2.3
15 00 0005 0.026 -
15 00 0015 0.025
15 00 0029 0.029
74/07/15 13 05 0000 0.026 2.7
13 05 0005 0.017
13 05 0015 0.024
13 05 0021 0.024
74/09/11 10 00 0000 0.041 5.6
10 00 0005 0.029
10 00 0015 0.018
-------
STORET ETRtEvAL DATE 76/05/03
460304
43 17 18. 103 21 42.0 3
ANGOSTURA RESERVOIR
46047 SOUTI-I DAPSOTA
090491
1LEPALES 2111202
0008 FEET DEPT 1 CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTr-I WATER DO TRANSP CNDUCTVY P H 1 ALK NrP3—N TOT KJEL t402&N03 Pi -sOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N ‘4-TOTAL ORT IO
TO DAY FEET CENT MG/L INC hES MICROMMO SU MG/ I MG/L MG/L MG/I MG/L P
74/04/24 15 30 0000 10.9 36 1562 139 0.060 0.400 0.100 0.004
15 30 0002 10.9 9.8 1562
15 30 0005 10.8 9.8 1579 140 0.050 0.300 0.090 0.004
74/07/15 12 40 0000 25.3 7.2 14 2530 8.00 142 0.080 0.900 0.160 0.003
74/09/11 10 35 0000 18. 7.8 10 1941 8.13 139 0.040 0.900 0.070 Q .QO4
00665 32217 00031
DATE TIME DEPTH PHOS—TOT CHLRPHYL INCOT LI
FROM OF A REMNING
TO DAY FEET MG/I P UG/L PERCENT
74/04/24 15 30 0000 0.035 5.5
15 30 0005 0.041
74/07/15 1 40 0000 0.051 14.9
12 40 0003 1.0
74/09/11 10 35 0000 0.013 2.8
-------
APPENDiX E
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 76/05/04
4603*1
43 21 20.C 103 25 25.0 4
CHEYENNE RIVER
46 7.5 ANGOSTURA I S
0/ANGOSTtJR’ RESE IOIR 090491
BNK SAM 1.3 H DWNSTRM FRM ANGOSTURA DAM
1 IEPMLES 2111204
0000 FEET OEPTri CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL N113—N PHOS—DIS PHOS—TOT
FROM OF ,i-TOTAL N TOTAL ORTHO
TO DAY FEET MG/L MG/L MG/I MG/L P MG/L P
74/10/11 09 30 1.760 1.200 0.030 0.005K 0.005K
74/11/10 09 10 1.760 0.300 0.025 0.005 0.005
74/11/16 11 00 1.840 0.600 0.030 0.005K 0.010K
75/03/25 09 00 1.005 0.750 0.035 0.005K 0.010K
75/04/28 10 10 0.360 0.700 0.030 0.010 0.010
75/05/08 10 10 0.300 0.550 0.035 0.005 0.010K
75/05/22 10 00 0.220 1.130 0.060 0.005 0.015
75/06/U 13 15 0.065 0.650 0.040 0.005K 0.010K
75/01/21 14 20 0.015 0.400 0.035 0.005 0.010K
75/09108 17 00 0.720 0.500 0.040 0.005K 0.010
K VALUE KNOwN TO BE
LESS THMN INDICATED
-------
STORET RETRIEVAL DATE 76/05/04
460 3A2
43 18 19.t 103 33 43.0 4
CHEYENNE RIVER
‘.6 7.5 CASCADE SPRS
T/ANGOSTURA RESERVOIR 090491
BROG ON $WY 87 2 MI S OF CASCADE SPRINGS
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPT 1 N02 .NO3 TOT KJEL MH3-N P1-105—015 PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTI-sO
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L P
74/10/12 10 20 0.280 0.500 0.010 0.0051< 0.005
74/11/10 10 15 0.296 0.500 0.140 0.005 0.045
74/12/06 09 45 0.384 0.500 0.090 0.005K 0.010K
75/01/13 14 25 0.232 2.800 0.024 0.016 0.200
75/02/10 13 45 0.216 0.800 0.024 0.0081< 0.0101<
75/03/11 13 50 0.338 1.500 0.112 0.016 0.060
75/03/25 10 15 0.276 2.000 0.120 0.018
75/04/25 11 30 0.260 1.550 0.140 0.025 0.340
75/05/08 13 45 0.170 0.800 0.030 0.015 0.100
75/05/22 08 30 0.220 1.000 0.045 0.005K 0.060
75/06/12 10 00 0.140 0.900 0.025 0.0051< 0.090
75/07/21 13 20 0.050 0.250 0.030 0.005K 0.010
75/09/08 14 20 0.150 0.500 0.075 0.0051< 0.035
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/05/04
460 3t 1
43 16 15.” 103 20 ‘.5.0 4
hORSEHEAD CREEK
46 7.5 401 SPRGS SE
T/ANGOSTUR RESERVOIR 090491
bRDG ON Hw ’ 79 NEAR HORSEHEAD CEMETARY
I1EPALES 2111204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET NG/L MG/L HG/L HG/L P HG/L P
75/04/28 10 30 0.005 1.400 0.055 0.020 0.060
75/05/08 10 30 0.010 1.050 0.040 0.010 0.050
75/05/22 09 20 0.040 0.950 0.055 0.007 0.090
-------
ST RET RETRIEVAL DATE 76/05/04
4603AA PD46 O3AA P001 174
43 18 20.0 103 48 45.0 4
EDGEMONT
46 FALL RIVER Co.
T/ANGOST(JRA RES 090491
CHEYENNE RiVER
11EPALES 2141204
0000 FEET DEPTH CLASS 00
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT FLOW CONDUIT
FROM OF N—TOTAL N TOTAL ORTHO RATE FLOW—MGD
TO DAY FEET HG/L MG/I MG/L MG/L P MG/I P INST MGD MONTHLY
75/01/07 10 30 0.160 11.000 0.370 1.800 2.700
75/02/07 15 00 0.080 2.400 2.500
75/03/07 10 30 0.080 11.000 0.400 2.700 2.900
75/04/07 14 00 1.120 10.500 0.270 0.400 4.100
75/05/07 14 00 0.150 14.500 0.180 2.300 3.900
75/06/06 13 30 0.050 6.000 0.110 2.400 6.700
75/07/02 14 00 0.050 7.900 0.025K 2.750 4.000
75/08/07 0.050 10.000 0.050K 1.600 2.SOu
75/09/08 14 45 0.025 12.000 0.039 2.300 3.500
75/10/02 15 00 0.075 21.000 0.660 3.700 5.900
75/11/07 15 30 0.115 5.000 4.000 2.500 3.200
75/12/03 0.175 19.000 0.395 3.600 6.300
76/01/07 15 00 0.025 18.000 2.700 2.100 4.600
K VALUE KNOWN TO BE
LESS THAN INDICATEO
------- |