REPORT OF INVESTIGATION
LAKE TANEYCOMO DISSOLVED OXYGEN STUDY
by
U. S. ENVIRONMENTAL PROTECTION AGENCY
Region VII
Surveillance and Analysis Division
January 14, 1977
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TABLE OF CONTENTS
Page
i
i i i
TABLE OF CONTENTS
LIST OF FIGURES
LIST OF TABLES iv
I. INTRODUCTION 1
II. GENERAL BACKGROUND AND TECHNICAL INFORMATION 2
A. TABLE ROCK DAM AND RESERVOIR 2
B. LAKE TANEYCOMO AND OZARK BEACH DAM 2
C. DESCRIPTION OF PROBLEM 3
III. SCOPE OF INVESTIGATION 8
A. MONITORING SITES 8
B. STUDY PERIODS 10
C. PARAMETERS 10
D. PROCEDURE 12
1. AUGUST STUDY PERIOD 12
2. SEPTEMBER STUDY PERIOD 14
3. OCTOBER 14-16 STUDY PERIOD 16
4. OCTOBER 23-24 STUDY PERIOD 17
5. JANUARY 7-8 STUDY PERIOD 17
IV. PRESENTATION AND DISCUSSION OF DATA 18
A. AUGUST AND SEPTEMBER STUDY PERIOD 18
B. OCTOBER 14-16 STUDY PERIOD 33
C. OCTOBER 23-24 STUDY PERIOD 40
D. JANUARY 7-8 STUDY PERIOD 43
E. STUDY LIMITATIONS 47
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Table of Contents (continued)
V. SUMMARY
VI. CONCLUSIONS
BIBLIOGRAPHY
APPENDICES
A. LAKE TANEYCOMO NUTRIENT, pH, DO, AND FLOW RATES
AUGUST AND SEPTEMBER, 1976
B. TABLE ROCK RESERVOIR NUTRIENT, pH, TEMPERATURE,
AND DO DATA - SEPTEMBER, 1976
C. LAKE TANEYCOMO BIOLOGICAL DATA - OCTOBER, 1976
D. LAKE TANEYCOMO BIOLOGICAL DATA - JANUARY, 1977
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LIST OF FIGURES
Figures Page
1. Table Rock Dam Cross Section 5
2. Location Map of Dissolved Oxygen Monitoring Sites 9
on Lake Taneycomo
3. Lake Taneycomo Dissolved Oxyqen Data - August Study 21
Peri od
4. Lake Taneycomo Dissolved Oxygen Data - September Study 22
Period
5. August Dissolved Oxygen Levels as a Function of Lake 25
Mileage, Time, and Power Release Rates
6. September Dissolved Oxygen Levels as a Function of Lake 26
Mileaqe, Time, and Power Release Rates
7. Range of Dissolved Oxygen Saturation Levels - August 29
24-Hour Run
8. Range of Dissolved Oxygen Saturation Levels - September 30
24-Hour Run
9. Dissolved Oxygen Levels in Upper Reaches of Lake 34
Taneycomo - October 14-16 Study Period
10. Fifteen-Inch Rainbow Trout Found October 23, 1976, in 41
Waters Closed to Fishing
11. Twenty-two-inch Rainbow Trout Found October 24, 1976, 42
at Station T-l
12. Dissolved Oxygen Levels in Upper Reaches of Lake 44
Taneycomo - October 23, 1976
13. Dissolved Oxygen Levels in Lake Taneycomo - January 7-8 45
Study Period
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iv
LIST OF TABLES
Tables Page
I. Summary of Lake Taneycomo Data 19
II. Dissolved Oxygen Measurements Less Than 4, 5, and 23
6 mg/1
III. Mean Maximum Vertical and Lateral Dissolved Oxygen 27
Variations
IV. Table Rock Grab Sample Data 32
V. Results of Light-Dark Periphyton and Phytoplankton 39
Experiment
A-l. Nutrient and pH Levels, Lake Taneycomo 56
A-2. August 18, 1976 Dissolved Oxygen Data - Morning Run 64
A-3. August 18, 1976 Dissolved Oxygen Data - Evening Run 70
A-4. August 18-19, 1976 Dissolved Oxygen Data - 24-Hour Run 76
A-5. September 8, 1976 Dissolved Oxygen Data - Morning Run 88
A-6. September 8, 1976 Dissolved Oxygen Data - Evening Run 92
A-7. September 8-9, 1976 Dissolved Oxygen Data - 24-Hour Run 96
A-8. Table Rock Dam Power Generation Release - 114
August 16-20, 1976
A-9. Table Rock Dam Power Generation Release - 115
SeDtember 6-10, 1976
B-l. Table Rock Reservoir pH and Nutrient Data - 117
September 7, 1976
B-2. Table Rock Reservoir Dissolved Oxygen Concentrations 119
September 8, 1976
B-3. Table Rock Reservoir Temperature - September 8, 1976 123
B-4. Table Rock Reservoir Dissolved Oxygen Percent 127
Saturation - September 8, 1976
C-l. Periphyton Taxa Identified from Lake Taneycomo - 132
October 16, 1976
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1
I. INTRODUCTION
For a number of years the Missouri Department of Conservation (MDC)
has been concerned about the reported fall decline in the trout catch
rate in Lake Taneycomo. The MDC has reasoned that this seasonal decline
in the catch rate was because of low dissolved oxygen (DO) levels in
the power releases from Table Rock Dam which is operated by the U.S.
Army Corps of Engineers (Little Rock District). The Corps and MDC
have well documented the fall low DO levels in the withdrawl zone behind
Table Rock Dam and at selected stations in the upstream reaches of Lake
Taneycomo.
Although the reason for the low DO levels in Lake Taneycomo was gener-
ally understood and accepted by all concerned parties, there was very
little data from Lake Taneycomo to document the scope of the problem.
For this reason, the Surveillance and Analysis Division (SVAN) of the
Environmental Protection Agency (EPA) Region VII was directed to develop
a field investigation study which would adequately document the extent
of the fall low DO problem in Lake Taneycomo. A proposal was developed;
and after receiving input from other interested agencies, SVAN carried
out the field work. This report presents the results of that investigation.
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2
II. GENERAL BACKGROUND AND TECHNICAL INFORMATION
A. 'TABLE ROCK DAM AND RESERVOIR
Table Rock Dam is located on the White River about 6 miles [10 kilo-
meters (8 river miles)] southwest of Branson, Missouri. The power-
house is equipped with four 50-megawatt (MW) units which discharge
13,400 cubic feet per second (cfs) [379 cubic meters per second (cu
m/sec)] at rated capacity. At power peaking operation, the generators
can be operated at 15 percent overload (230 MW) with a discharge of
15,400 cfs (436 cu m/sec). Intake centerlines for the penstocks are
at elevation 775.4 feet (ft) [236.3 meters (m)] which is 80 ft (24 m)
above the bottom and 140 ft (43 m) below the top of the power pool.
Table Rock Reservoir extends westerly along the White River to Beaver
Dam. Principal streams below Beaver Dam tributary to the reservoir are
the James River in Missouri and the Kings River and Indian and Long
Creeks in Arkansas. Depth of the reservoir at the dam [top of conser-
vation or power pool, elevation 915 ft (279 m)] is 220 ft (67 m). Total
6
storage in the lake below the power pool is 2.702 x 10 acre ft (2.553 x
109 cu m).
B. LAKE TANEYC0M0 AND OZARK BEACH DAM
Lake Taneycomo is located immediately downstream from Table Rock Dam
and is formed by Ozark Beach Dam which was constructed in 1913. Ozark
Beach Dam is a non-Federal power project and has four generators with
a total capacity of 16 megawatts. Total storage for the lake is 28,000
acre ft (35 million cu m). Theoretically, when the Table Rock turbines
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3
are generating at full capacity, all of the water in Lake Taneycomo
could be displaced in 24 hours. Depth of the lake at the dam is approx-
imately 50 ft (15 m). The distance between the Ozark Beach Dam and
Table Rock Dam is approximately 22.7 river miles (36.5 km).
C. DESCRIPTION OF PROBLEM
The MDC has measured low DO levels in Lake Taneycomo and in Table Rock
Reservoir since the complete filling in 1960 and 1961. After the ini-
tial filling, the MDC reported that the DO had improved in the reservoir.
They reported that the DO in Lake Taneycomo at Branson City Water Supply
intake, which is about 8 miles (3 km) downstream from Table Rock Dam,
rarely dropped below 7.0 mg/1 during the period from 1962 to 1967. Also
during this period, MDC reported DO concentrations between 3-5 mg/1 in
the turbine intake zones in the months of September and October. In
1974, the measured DO in the turbine intake zones for the same two months
approached 1 mg/1 or less. In 1975, the DO level in the intake zone
dropped to 1 mg/1 in November. The files indicate the first meetings
held to discuss the low DO problem in Lake Taneycomo began in the fall
of 1970. The Corps recognized the problem and, at first, tried to cur-
tail power generation and make spillway releases of higher DO concentrations
in order to meet the 6.0 mg/1 water quality standard. They found that
in early fall when the surface releases were high in temperature and DO,
the water would not mix with the colder power releases and the downstream
channel became stratified. One portion of the lake had adequate DO but
unsuitable temperatures for the trout, while the other portion had accep-
table temperature values, but low DO. Later in the fall, surface releases
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4
were more favorable because of the lower lake temperature. However,
to maintain the 6.0 mg/1 standard by spilling, the cost of reducing
generation would be quite substantial. (Note: When employing sur-
face releases, the total discharge into Lake Taneycomo should never
exceed the maximum capacity of 15,400 cfs (436 cu m/sec), otherwise,
downstream erosion would be very detrimental.
Following those controlled release methods for maintaining DO levels,
the Corps initiated a study in the fall of 1971 to evaluate two meth-
ods of aeration in an attempt to alleviate the low DO problem at Table
Rock-Lake Taneycomo. One method involved the operation of an air-
diffusing apparatus in the reservoir immediately above Table Rock Dam.
The other method evaluated was the injection of compressed air directly
into the penstocks. The injection points were the penstock fill line,
penstock drain line, and the draft tube dewatering line (See Figure 1).
Also included with these tests was an evaluation of the effectiveness
of the turbine air vents in aerating the power releases. A combination
of air injection and vent-open tests were also conducted.
The diffusion test indicated that Table Rock Reservoir could not be
destratified and that the downstream Taneycomo DO concentration was
only increased by approximately 1 mg/1.
The results of the fill line injection, drain line injection, and the
draft tube injection were more successful in adding DO to the power
releases than the lake diffuser system. The Corps found that with drain
line injection, the entire range of generation could be aerated to a DO
of at least 5.5 mg/1 (an increase of over 3 mg/1) with a maximum air
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5
Vent
Top of
Power Pool
El 915
Fill Line
Injection
140
Turbine
Vent
Intake;
CenterTine ฆ"
iO ''
\Dra1n Line Injectioi
\ Operating
Gallery
Draft Tube
Injection
Injection
Gallery
SECTION THROUGH POWERHOUSE
20 ' 0 20 M> 6 0 80
Scale of Feet
Figure 1. - Table Rock Dam Cross Section
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6
input of 5500 cubic feet per minute (cfm) [156 cubic meters per min-
ute (cu m/min)] per turbine unit. With draft tube injection, a sub-
stantial increase in air input would be required to reach the same DO
level attained by drain line injection.
The tests that considered the effectiveness of the turbine vents were
successful, but with limitations. With the vents open, less injected
air was needed to reach a target DO as compared to when the turbine
vents were closed. Without any air injection and by blocking the tur-
bine vents open, a maximum DO increase of 2.0 mg/1 was measured at a
generation capacity of 20 MW with decreasing efficiency at lower and
higher rates of generation. The effectiveness of the open turbine vents
completely disappeared at a 50 MW capacity (full load) at an air input
of 5000 cfm (142 cu m/min).
The test results indicated the turbine efficiency to be unaffected at
a power load of 50 MW and a decrease of not more than 0.5 percent at
power loads between 35 and 50 MW. At 20 MW, with 1800 cfm (51 cu m/min)
efficiency decreased approximately 2 percent. When blocking the turbine
vents open, the tests indicated no significant difference in efficiency.
In the fall of 1973, the Corps of Engineers decided to inject pure liq-
uid oxygen into the penstocks hoping to raise the DO to meet the 6.0 mg/1
standard. This action appeared to solve the problem, although the oxygen
system was about 50 percent efficient when operating at half capacity.
The cost of liquid oxygen was about $45./ton in 1973. To maintain 6.0
mg/1 in the discharge when operating at full capacity required 7.5 tons
(6.7 metric tons) of liquid oxygen per hour (approximately $350./hour).
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In 1974 the price of liquid oxygen more than doubled to $100./ton,
and there appeared to be a supply shortage. The Corps could only
obtain 40 tons (36 metric tons) per week, which was not enough to
maintain the DO at the 6.0 mg/1 level during critical situations.
At the request of the MDC, fall power releases have been reduced
but the DO remains below the standard.
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8
III. SCOPE OF INVESTIGATION
A. MONITORING SITES
Following a reconnaisance by SVAN staff members in the summer of 1976,
nine sites were selected for DO monitoring and "sampling. These sites
are shown in Figure 2 which is a reduced, simplified tracing of USGS
topographical maps covering the area. A description of these sites
follows along with the station number designation and the distance
measured downstream from Table Rock Dam. These mileages differ some-
what from those nominal distances indicated in the study plan (1).
These changes were necessary to aid in locating stations at night.
Stations were established, for the most part, adjacent to lighted boat
docks.
Station
Number
TR-1
T-l
Distance
Miles
0.09
1-2
T-3
T-4
T-5
T-6
T-7
T-8
1.0
3.1
5.6
10.2
13.0
19.2
22.7
Description
Table Rock Reservoir at buoy safety line.
Lake Taneycomo 500 ft (150 m) downstream from
Table Rock Dam. This station coincided with the
permanent DO monitoring point established by the
Corps.
Lake Taneycomo at public boat launch area.
Lake Taneycomo in front of Fall Creek Trout Dock.
Lake Taneycomo at School of the Ozarks water intake.
Lake Taneycomo at Boy Scout Camp recreational area.
Lake Taneycomo at mile marker.10.
Lake Taneycomo at "Musgrove" boat dock approximately
0.5 miles (0.8 km) upstream from mile marker 5.
Lake Taneycomo at buoy safety line behind Ozark
Beach Dam.
Multiply by 1.609 to get distance in kilometers.
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0 - MONITORING SITES
SCAIC
1 I - MILES DOWNSTREAM , ^ 0
1 1 FROM TABLE ROCK DAM I i I
Figure 2.- LOCATION MAP OF DISSOLVED OXYGEN MONITORING SITES ON LAKE TANEYCOMO
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B. STUDY PERIODS
The field investigative work covered by this report was conducted
during the following periods.
Additional work of a biological nature is scheduled for January 22-23,
1977. This future work will be written as a supplement to this report
and added at a later date.
The August and September study periods accounted for the major portion
of the effort at Lake Taneycomo. These two study periods included the
collection of nutrient samples and intensive DO monitoring. The October
14-16 period was of limited extent and was conducted in the upper reaches
of Lake Taneycomo primarily for the purpose of confirming the DO data
resulting from the two previous periods. The October 23-24 period was
conducted on a weekend without power generation. The January 7-8 period
was used to get DO data following the fall turnover in Table Rock Lake
and to verify previous data.
C. PARAMETERS
The water chemistry and physical parameters of interest during the
investigation were as follows:
August 16-19, 1976
September 6-7, 1976
October 14-16, 1976
October 23-24, 1976
January 7-8r 1977
Parameter
Abbreviation
Total Phosphorous
Nitrite-Nitrate Nitrogen as Nitrogen
Total Kjeldahl Nitrogen
Ammonia Nitrogen as Nitrogen
PH
Dissolved Oxygen
Water Temperature
Flow Rate
Lake Profile
Total P
N02-N03-N
TKN
NH,-N
PH
DO
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Nutrient samples were collected with messenger activated mechanical
*
samplers. These samples were preserved in the field and delivered
to the EPA Regional Laboratory** for analysis following completion
of the field work. These analyses were performed as specified by the
EPA Methods Manual (2). The pH measurements were performed in the field
using a portable pH meter+ on those samples collected for nutrient anal-
ysis. Dissolved oxygen measurements were made in the field with two
Yellow Springs Instrument Company (YSI)++ Model 57 oxygen meters fitted
with YSI Pressure Compensating Probes (No. 5419) with 50 and 100-ft
leads and YSI submersible stirrers (No. 5791). For the January 7-8
study period, YSI Probe (No. 5739) and submersible stirrer (No. 5795)
were used. Temperature measurements were made with two YSI Tele-
Thermometers (Model 46TUC and 44H). Power generation release flow rates
were provided by the Corps of Engineers.
Depth profiles of Lake Taneycomo were made with a Raytheon Model DE719B
Survey Fathometer.+++
* Foerst Mechanical Specialties Company, 2407 North St. Louis Avenue,
Chicago, Illinois.
25 Funston Road, Kansas City, Kansas 66115.
t
Porta-Matic Model 175, Instrumentation Laboratory Inc., 113 Hartwell
Avenue, Lexington, Massachusetts 02173.
tt
Yellow Springs, Ohio 45387.
ttt
Raytheon Marine Company, 676 Island Pond Road, Manchester, New
Hampshire 03103.
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D. PROCEDURE
1. August Study Period
The August field work consisted of essentially three separate
endeavors. The initial work consisted of getting depth profiles at
each sampling station and of making a profile of the length of Lake
Taneycomo at the visual center of the stream. The second endeavor
consisted of collecting samples for nutrient and pH analysis at each
of the Taneycomo stations. The third and main effort was devoted to
the collection of DO and temperature data.
In running the depth profile on Taneycomo, the portable fathometer was
mounted in the boat and the transmitting element mounted on the side of
the boat with the head approximately 1 ft (0.3 m) below the water sur-
face. The instrument was calibrated according to the manufacturer's
instructions, and the profile started. The profiles were made by star-
ting at T-3, making a cross section, and then proceeding down the visual
center of the lake to the next station. The boat speed was kept at about
4 miles per hour (6 km per hour). Profiles were not made at T-l and T-2
because of the wide depth fluctuations introduced by varying power
generation releases.
Samples for nutrient analysis were collected at quarter points [in the
middle of the lake and at points which were, respectively, halfway between
the lake centerline and (facing downstream) the left and right banks], At
/
each of the quarter points, samples were collected just below the surface,
at middepth, and near the bottom. In total, nine samples were collected at
each station. Following collection of all the lake nutrient samples, the
pH of each sample was determined and the samples then preserved with 5 ml
of sulfuric acid.
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Collection of DO and temperature data involved three separate oper-
ations. The first two efforts were structured in an attempt to
determine, respectively, morning and evening DO levels at all the
Taneycomo stations. The third phase involved a 24-hour run at all
the stations to document diurnal variation.
To obtain morning DO data, two three-man crews were fielded in separate
boats and were on the water at sunrise. One crew monitored the DO
levels at stations T-l through T-4, while the other team monitored
the DO levels at stations T-5 through T-8. Evening DO levels were
determined in a similar manner by using the same crews at the same
stations at sunset of the same day. The DO meters were air-calibrated
according to the manufacturer's instructions immediately prior to each
run.
Similar to the collection procedure for the nutrient samples, DO and
temperature measurements were made at quarter points at each station
at 2-ft (0.6-m) depth intervals. At the upstream stations, these inter-
vals were reduced at times in response to variations in lake depth
resulting from changes in generation rates. For both the morning and
evening runs, only one set of DO measurements was made at each station.
Following completion of the evening run at approximately 2000 hours,
a 24-hour measurement period was begun using one crew to make as many
runs throughout the lake and stopping at all the stations as frequently
as time and night visibility conditions would permit. This crew was
replaced by an alternate crew on the morning of the following day.
During this 24-hour period, measurements were also taken at quarter
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14
points. The depth interval during the 24-hour run was increased from
2 ft (0.6 m) to 4 ft (1.2 m) following an examination of the data col-
lected during the morning and evening runs. The calibration of the
DO meters was checked periodically and any necessary adjustments made
several times throughout this 24-hour period.
The date, time span, and DO measurement frequency of the morning,
evening, and 24-hour runs were as follows:
Date Time Span No. of
Run August 1976 Military Runs
Morning DO run 18 0613-1213 1
Evening DO run 18 1817-2018 1
24-hour DO run 18-19 2230-1629 3
The field crew was only able to complete one set of measurements during
the hours of darkness of the 24-hour run because of fog and reduced
visibility. Additionally, no measurements were made at station T-l
at night. No work was done in Table Rock Reservoir during the August
study period.
2. September Study Period
The nature of the field work during the September study period
was similar to the August period with the exception that the depth
profiling was not repeated and the number of DO measurements was reduced.
Additionally, samples for pH and nutrient analysis and DO measurements
were taken in Table Rock Reservoir at the buoy safety line behind the
dam.
The DO data collected during the August period indicated no significant
difference between the quarter points and very little difference with
depth except at the downstream stations which exhibited some DO and
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15
temperature stratification. Consequently, during the September period,
the DO measurements were restricted to the lake center line. Measure-
ment depth intervals were maintained at 4 ft (1.2 m). The nutrient
sampling was repeated at the quarter points. During the 24-hour run,
monitoring at station T-l was eliminated because of the shallow water
and the time needed to reach this station during periods of no power
generation. Deletion of this station enabled the boat crews to make
more frequent measurements at the other stations.
Nutrient sampling in Table Rock Reservoir proceeded from the north to
the south bank along the buoy safety line. Samples, except near the
banks, were collected at a depth of 75 ft (23 m). Lateral distance
between the sampling points was 50 ft (15 m); this interval was chosen
to coincide with the buoy positions. Collection of DO and temperature
data in the reservoir also proceeded from the north to the south bank.
Measurements were taken at every other buoy [100 ft (30 m)]. Measure-
ments were generally taken down to a depth of about 26 ft (8 m) which
marked the depth of the thermocline. Some stations were measured at
depths of 100 ft (30 m) for verification of the location of the thermo-
cline. This depth reflected the maximum length of the DO probe lead
which was available at the time.
The dates and time spans of the significant phases of the September
field work were as follows:
Date Time Span No. of
Work Element September 1976 Military Runs
Lake Taneycomo
Morning DO run 7 0620-0739 1
Evening DO run 8 1730-1820 1
24-hour DO run 8-9 2000-1725 6
Table Rock Reservoir
DO run 8 0940-1300 1
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16
Two of the six runs during the 24-hour period on Lake Taneycomo were
made during the hours of darkness.
3. October 14-16 Study Period
The October 14-16 study period was of limited scope and was con-
ducted primarily, to determine if the theories resulting from an analysis
of the previous DO data had any validity. During these two days, DO
measurements were made in the upper reaches of Lake Taneycomo from sta-
tion T-l down to as far as station T-5. Most of the work was confined to
the lake between T-l and T-3. This reach of the lake was floated with
a DO and temperature probe suspended over the side of the boat. The
meters were monitored continuously looking for points of inflection.
Measurements were made in the mornings and evenings under both generating
and non-generating conditions.
In addition to the DO monitoring, some samples were collected for bio-
logical analysis. Grab samples were collected for periphytic and phyto-
plankton analysis at station T-3 and at a point in a riffle area about
300 ft (90 m) downstream from the Shepherd of the Hills Fish Hatchery
lower outfall. This outfall is located approximately 0.4 miles (0.6
km) downstream from Table Rock Dam. The macroinvertebrate community
was also sampled in this riffle area with a square foot Surber sampler.*
No other stations were sampled for benthic macroinvertebrates because of
the irregular rock bottom of the upper reaches of the lake.
*
Wildlife Supply Company, 301 Cass Street, Saginaw, Michigan 48802.
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4. October 23-24 Study Period
The October 23-24 period was intentionally conducted on a week-
end during a period of non-generation. Work was confined to additional
day-time DO measurements in the upper reaches of Lake Taneycomo and
observation and documentation of dead trout.
5. January 7-8 Study Period
The January 7-8 study period was undertaken primarily to get
additional DO data following the fall "turnover" in Table Rock Reser-
voir and to verify the significance of certain hydraulic characteristics
of the upper reaches of Taneycomo. During this period, samples for nutri-
ent and pH analysis were collected at T-l. Additionally, the three
hatchery discharges and Lake Taneycomo were gauged in order to estimate
the amount of leakage from Table Rock Dam during periods of non-generation.
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IV. PRESENTATION AND DISCUSSION OF DATA
A. AUGUST AND SEPTEMBER STUDY PERIOD
Table I summarizes the center line Lake Taneycomo DO and nutrient data
resulting from the August and September study periods. The raw data
from which this summary table was made may be found in Appendix A, in
Tables A-l through A-7. Data on water release rates during the two
weeks of study may be found in Tables A-8 and A-9. The raw data
resulting from the September work on Table Rock Reservoir (station
TR-1) may be found in Appendix B, Tables B-l through B-4.
The weather conditions during the August and September periods are
summarized as follows:
August Weather Description
Morning Run (August 18) Fog
Daylight Hours (August 18) Clear and warm
Evening Run (August 18) Clear
24-hour Run (August 18-19) Scattered fog
September
1800 to 0600 hours, clear and
warm on August 19.
Morning Run (September 8) Fog
Daylight Hours (September 8) Sunny, scattered clouds
Evening Run (September 8) Scattered clouds
24-hour Run (September 8-9) Scattered fog
1800 to 0600 hours, overcast on
September 9 till 1200 hours.
Sunny with scattered clouds after
1200 hours.
An examination of Table I would indicate that the only significant con-
centration of nutrients was the N02-N03-N level at station T-2 in August.
The mean concentration (nine samples) was 3.3 mg/1. This concentration
was greater by a factor of approximately 10 than the mean concentrations
found at stations T-l and T-3 which were, respectively, upstream and
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19
TARIF 1
SUWttRY OF IAKF TAfiEYCOMO DATA
Lake Taneycomo Stations
T-l 1
T-2 1
T-3
T-4
T-5
T"6
T-7 |
T-8
Study Period
and
Distance Downstream From Table Rock Oan, Miles
Parameter
0.09
1.0
3.1
5.6
10.2
13.0
19.2
22.7
August
Average Depth*, ft
ph"
7.4
tt
7.4
e.6
7.3
13.4
7.3
13.5
7.4
30.8
7.3
15.7
7.6
?8
7.5
Nutrients
NOa-NOj-N, mg/1
TKN, rag/1
NHj-N, mg/1
Total P, mg/1
0.38
<0.2
<0.08
<0.1
3.3
<0.2
<0.07
<0.1
0.32
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20
downstream from T-2. This increase was not found in September. In
response to a telephone query, hatchery personnel checked their record
of cleaning operations. They indicated they had not cleaned the hat-
chery raceways on the day the samples were collected. Since all nine
samples exhibited a similar increase at T-2, it was unlikely the increase
resulted from sample contamination or laboratory error. Consequently,
the source of the N02-N03-N increase is inexplicable.
The DO data from Table I is presented graphically in Figures 3 and 4
which show, respectively, the August and September profiles. In study-
ing these profiles, it should be kept in mind that the mean 24-hour
profiles do not include the DO data collected during the morning and
evening runs. The plotted levels for the saturation concentration are
based upon the mean water temperature at each station which included
depth as well as time variations. Contrary to anticipated results, it
can be seen that during August (Figure 3), the morning DO levels in the
upper reaches of Lake Taneycomo were greater than the evening concentra-
tions. Figure 3 shows that the minimum DO concentration of 1.5 mg/1
occurred during the morning run in September. This concentration was
recorded before generation began.
It should also be pointed out that the DO data collected during the
24-hour run in September represented a period of no generation. The
other mean values and plotted data include data recorded both during
periods of generation and non-generation.
Table II shows the total number of DO measurements which were made at
the station centers during August and September. The table also indicates
-------
.1
.0
9
8
7
6
5
k
3
2
1
0
21
D Mean 24-Hour Saturation Concentration
j Max.
A Mean 24-Hour Concentration (3 runs)
I Mln.
o Mean Morning Concentration
Mean Evening Concentration
8 10 12 U 16 18 20 22 2>ป
Lake Mileage
ฆ ฆ J
<~ 5 6
Taneycomo Station Numbers
igure 3.- Lake Taneycomo Dissolved Oxygen Data - August Study
Period.
-------
12
11
10
9
8
7
6
5
U
3
2
1
0
22
~ Mean 24-Hour Saturation Concentration
* Max.
a Mean 24-Hour Concentration (6 runs)
X Min.
o Mean Morning Concentration
Mean Evening Concentration
8 10 12 m
Lake Mileage
16
18 20 22 2>t
5 6
Taneycomo Station Numbers
:igure 4.- Lake Taneycomo Dissolved Oxygen Data - September
Study Period.
-------
23
TABLE II
DISSOLVED OXYGEN MEASUREMENTS LESS THAN 4, 5, AND 6 mg/1
Period
And
Station
Total Number
of DO
Measurements
less than
4 ma/1
less than
5 mq/1
less than
6 mq/1
NO.
%
NO.
%
NO.
%
August
T-l
11
0
00
6
55
8
73
1-2
16
0
00
3
19
12
75
T-3
15
0
00
2
13
2
13
T-4
23
0
00
8
35
8
35
T-5
37
0
00
2
05
25
68
T-6
64
0
00
13
20
39
61
T-7
43
0
00
0
00
30
70
T-8
68
0
00
2
03
36
53
September
T-l
8
3
38
8
100
8
100
T-2
23
1
04
9
39
11
48
T-3
29
0
00
10
34
22
76
T-4
33
0
00
7
21
24
73
T-5
46
0
00
0
00
1
2
T-6
*tw
65
0
00
0
00
17
26
T-7
46
0
00
0
00
1
2
T-8
76
0
00
0
00
10
13
-------
24
the number of measurements which were less than 4, 5, and 6 mg/1.
It is apparent that the DO concentration was less than 6 mg/1 through-
out the length of Lake Taneycomo and that the upper reaches of the
lake were below 5 mg/1. With the exception of stations T-l and T-2,
no DO concentrations below 4 mg/1 were recorded.
Figures 5 and 6 are three-dimensional plots which graphically show
the mean DO levels at all the center monitoring points of the Lake
Taneycomo stations. These DO concentrations are plotted as a func-
tion of lake mileage and time of day. The cross hatching on the DO
planes of each station are the result of projecting over the times
and magnitudes of power generation releases at Table Rock Dam. As
can be seen, these generation periods are plotted on the extreme left
vertical axis of the figures. Most of the cross hatching on the August
T-l DO plane (Figure 5) had to be deleted to improve the readability
of the graph. These graphs do not indicate any apparent DO fluctuation
as a function of generation rates or times.
Table III summarizes the magnitude of the vertical and lateral DO vari-
ations found in the August and September data. The mean vertical strati-
fication values were calculated by taking the average of the center line
maximum minus minimum DO concentration (aDO) measured at any one time
at the station. The lateral means were calculated by taking the average
of the maximum difference in DO concentration found between the surface
quarter points during the August study period. The surface measurements
were used because they generally reflected the maximum lateral varia-
tion. The values shown in Table III include the results of the morning,
evening, and the 24-hour runs. In studying the vertical ADO values,
-------
CO
2
AUGUST 19
DISTANCE DOWNSTREAM FROM TABLE ROCK DAM IN MILES
0 1 2 3 4 5 S 7 ซ 9 10 11 12 13 14 15 16 17 1ป 19 20 21 22 23
_S 1 ' S ' ' 1 ' ' ' h ฆ ฆ 1 ฆ ' 1 ' ฆ S ' ' r-1
T-1 T-2 T-3 T-4 5 T 6 T 7 T-8
MONITORING STATION NUMBER
FIGURE 5 - AUGUST DISSOLVED OXYGEN LEVELS AS A FUNCTION OF LAKE MILEAGE, TIME, AND POWER RELEASE RATES.
ro
tn
-------
DIRECTION OF FLOW
CO
o
u.
o
M
O
CD
QC
UJ
CO
1200
SEPT. 9
1400
1200
SEPT. 8
2400
1200
SEPT. 7
SEPT. 7
DISTANCE DOWNSTREAM FROM TABLE ROCK 0AM IN MILES
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 IB 17 18 19 20 21 22 23
T1 T-2 T-3 T 4 T 5 T 6 T-7 T 8
MONITORING STATION NUMBER
FIGURE 6- SEPTEMBER DISSOLVED OXYGEN LEVELS AS A FUNCTION OF LAKE MILEAGE, TIME, AND POWER RELEASE RATES
ro
cr>
-------
27
TABLE III
MEAN MAXIMUM VERTICAL AND LATERAL
DISSOLVED OXYGEN VARIATIONS
Station
Vertical Stratification
A DO, mq/1
Horizontal Stratification
A DO, mg/1
August
August
September
T-l
0.1
0.1
0.6
T-2
0.2
0.3
0.7
T-3
0.1
0.2
0.6
T-4
0.1
0.5
0.1
T-5
0.3
0.6
0.1
T-6
0.2
1.0
0.2
T-7
1.6
1.5
1.4
T-8
5.4
4.5
0.5
-------
28
it should be pointed out that the maximum and minimum values at the
upstream stations were not necessarily at the surface and bottom,
respectively. At T-7 and T-8 the DO concentrations did decrease con-
sistently from top to bottom.
Table III shows Lake Taneycomo was vertically well mixed through most
of its length and that stratification was not significant until one
reached T-7 and T-8. The August maximum vertical ADO at T-7 and
T-8 were 2.2 and 6.0 mg/1, respectively. In September these maximums
were 2.0 and 6.0 mg/1, respectively. Lateral variations indicated by
the August quarter point sampling were^reasonably consistent throughout
the lake.
Figures 7 and 8 show the range of center line DO saturation levels
calculated from the data collected during the 24-hour runs in August
and September. It can be seen that stratification became increasingly
significant as one proceeded downstream.
Looking at the 24-hour plots in Figures 3 and 4, it can be seen that
a DO peak concentration occurred at T-3 and T-2 in August and September,
respectively. Several theories were developed to account for these
peaks and the lower downstream concentrations. As was previously noted,
the 24-hour September data was recorded during a period of non-genera-
tion. Since the peak was further upstream in September when the lake
water velocity was minimal, it was reasoned that the lower DO levels
were the result of an unaccounted for source of organic material which
was introduced into the lake at some point upstream from station T-2.
It was initially thought that this source was the fish hatchery outfalls.
-------
8 10 12 l"t 16
Lake Mileage
i-JU
1 2
h 5 6
Taneycomo Station Numbers
Figure 7.- Range of Dissolved Oxygen Saturation Levels -
1 August 24-Hour Run.
-------
130
120
110
ง 100
u
3
+J
fO
V)
c.
0)
u
u
>ป
o 50
"O
U0
fฆ
O
\A
l/ป
30
20
10
0 1
rt-
X
8 10 12 1U
Lake Mileage
1 ft
16
18 20
1
-L
22 2ปt
t
Taneycomo Station Numbers
Figure 8.- Range of Dissolved Oxygen Saturation Levels
September 24-Hour Run.
-------
31
However a check of the SVAN files and some simple calculations indicated
that the amount of organic material in the hatchery discharge was not
sufficient to account for the decrease in DO.
Figure 3 indicated a DO decrease of greater than 1 mg/1. Using this
concentration and the volume of water released during the 24-hour run
[2000 million gallons (7.6 million cubic meters)] produced a calculated
oxygen deficit of 8.4 tons (7.7 metric tons) or a B0D5 population equi-
valent* of 99,000. A SVAN report (3) on the hatchery, which did not
include B0D5 data, indicated a maximum chemical oxygen demand (COD) of
770 lb (350 kg) per day during clean-up of tanks and raceways. It was
therefore concluded that the hatchery was not responsible for the
reduced DO levels downstream from the peak.
After discarding the theory of the hatchery discharge, it was reasoned
that because of the magnitude of the calculated DO deficit, the decrease
was linked to some chemical reaction in the water released from Table
Rock Reservoir. Consequently, on October 6, a grab sample was collected
from the withdrawl zone in the reservoir and returned to the EPA labo-
ratory for analysis. Special precautions were taken to avoid aeration
of this sample during collection and transport to the laboratory. Table
IV presents the results of the analysis of the sample. It can be seen
that there was no inhibition of the atmospheric reaeration of the sam-
ple, that bacteriological and BOD^ analysis were insignificant, and
that iron and hydrogen sulfide were below detection limits. Because
of these results, it was concluded that the decreased DO concentration
was not due to a chemical reaction.
~
Based on 0.1716 (77 grams) per capita per day.
-------
32
TABLE IV
TABLE ROCK GRAB SAMPLE DATA
Point of Collection: Tap on line serving hatchery
Lab No.: 960063
Date: October 6, 1976
Time: 0800 hours
Parameters
Temperature: 12ฐC
Dissolved Oxygen:
Initial: 0.5 mg/1
Atmospheric Re-aeration (minimal agitation)
after 7 hours: 1.5 mg/1
after 28 hours: 4.0 mg/1
after 51 hours: 6.0 mg/1
Bacteriological Analysis:
Fecal Coliform: 0/100 ml
Total Plate Count:
500/100 ml after 24 hours
1200/100 ml after 144 hours
Biochemical Oxygen Demand:
Time Seeded Unseeded
1 day 0.2 mg/1 0.2 mg/1
5 day 0.5 mg/1 0.5 mg/1
Total Iron: <50 yg/1
Hydrogen Sulfide: None detected on site after sample acidification.
None detected with lead-acetate paper.
-------
33
B. OCTOBER 14-16 STUDY PERIOD
Following rejection of the chemical reaction theory, it was suspec-
ted that the DO deficit was caused by some benthic demand. It was
this theory which resulted in the October 14-16 field effort. It was
reasoned that if the lower DO levels were caused by benthic demand,
the location of the demand could be determined by floating the upper
reaches of Lake Taneycomo while making continuous DO measurements and
looking for significant differences in surface and bottom concentrations
or sudden deflections of the meter.
Figure 9 presents the results of the October 14-16 period which was
undertaken to verify the benthic demand theory. The DO concentrations
plotted in Figure 9 have not been tabulated in this report because of
the lack of lake mileage reference points and the impossibility of
precisely locating many of the points of measurement. The points are
believed to be correct within ฑ500 ft (150 m). Figure 9 shows that
the DO levels were highly variable and were a function of time of day
and dam operating mode. It can be seen that maximum DO concentrations
occurred in the afternoon of October 14 during non-generation and that
the minimum levels occurred on the morning of October 16 during a period
of non-generation. Since the dam operating mode was the same on both
occasions, it was apparent that diurnal photosynthetic variation was
responsible for the fluctuations at T-l. The variation at T-2 can be
explained by the combination of two factors of diurnal photosynthetic
activity and atmospheric reaeration between T-l and T-2.
Weather conditions during the DO runs are summarized as follows:
-------
1
0
9
8
7
6
5
it
3
2
1
0
34
J
1
\
\
a\
\
ฃ
I
r-
a /
ฆ*" V
0 October 14, 1440 to 1630 Hours
A October 15, 1530 to 1645 Hours
o October 16, 0840 to 1015 Hours
October 15, 0820 to 1130 Hours
No Generation
Generation
No Generation
Generation
2 ซ~ 6 8 10 12 1U 16 18 20 22 2>t
Lake Mileage
i\% s 1 1 r-
Taneycomo Station Numbers
9.- Dissolved Oxygen Levels in Upper Reaches of
Lake Taneycomo - October 14-16 Study Period.
-------
35
Period
Weather Description
Afternoon, October 14
Morning, October 15
Afternoon, October 15
Morning, October 16
Sunny and cool
Overcast
Overcast
Sunny and cool
The hydraulic characteristics of the upper reaches of Taneycomo vary
a great deal with power generation rates. Even during periods of
non-generation there is still some flow in the upper reaches due to
the three aerated hatchery discharges and the flow from the small
turbine which supplies the internal power requirements of the dam.
Total flow during non-generation has been estimated to be approximately
100 cfs (2.8 cu m/sec). About 20 cfs (0.57 cu m/sec) goes through the
powerhouse generator and another 20 cfs (0.57 cu m/sec) goes to the
fish hatchery. The Corps estimated that approximately 60 cfs (1.7
cu m/sec) leaked through the turbines. During periods of non-commer-
cial generation, the upper reaches of Taneycomo (between T-l and T-2)
resemble a typical rocky Ozark stream with alternate stretches of
riffles and deep pools. The riffle areas are broad and 2 to 4 inches
(in.) [5 to 10 centimeters (cm)] deep in some areas. These shallow
riffles, as indicated by Figure 9, are extremely effective in reaerating
the small flows during periods of non-generation. During periods of
commercial generation, the hydraulic characteristics of the channel are
changed considerably. The depth of water is increased approximately
4 or 5 ft (1.2 or 1.5 m) and turbulence is reduced. Because of the nar-
row well-incised channel, water surface area is not greatly increased,
and atmospheric reaeration is diminished.
As was pointed out previously in the description of the monitoring
sites, station T-l coincided with the permanent DO monitoring point
-------
36
established by the Corps of Engineers. This point, although conven-
ient and adjacent to Corps property, must be considered to be the one
least representative of average DO levels in Lake Taneycomo.
Based upon the October 14-16 data, it was concluded that the DO peaks
and downstream decline shown in Figures 3, 4, and 9 were not caused by
a benthic demand, but instead, resulted from the various operating modes
of the dam. The high DO concentrations shown in Figure 9 coincided
with the riffle areas whereas the low DO concentrations downstream
from T-2 were recorded in the deeper pools. It was therefore concluded
that lower DO concentrations resulted from low-flow, high-DO water
being diluted by low-DO water left in the large-volume, deep-water
areas from the previous generation period.
It would appear that during periods of non-commercial generation, the
riffle areas are increasing the DO by about 4 mg/1 before the low-flow
water becomes diluted in the deep pool areas. From a DO loading stand-
point, there may be some greater flow rate which would optimize the
reaeration effect of the riffle areas and increase downstream DO concen-
trations..
In addition to the DO data presented in Figure 9, some samples were
collected for biological analysis during the October 14-16 period.
Grab samples were collected for peri phytic and phytoplankton analysis
at station T-3 and at a point in a riffle area about 300 ft (90 m)
downstream from the lower hatchery outfall. The macroinvertebrate
community was also sampled in this riffle area with a square foot
Surber sampler. The data resulting from this sampling may be found
-------
37
in Appendix C. The periphyton community at T-3 was dominated by pen-
nate diatoms of the genus Navicula (Table C-l). Diatoms accounted for
53 percent of the periphyton population. Filamentous blue-green and
green algaes accounted for 33 percent and 13 percent, respectively.
The phytoplankton community at 1-2 was dominated by equal numbers of
the filamentous blue-green algae Anabaena and the green flagellate
Chlamydomonas (Table C-2). Filamentous blue-green algae represented
39 percent, green flagellates represented 35 percent, and diatoms
represented 26 percent of the phytoplankton community.
The periphyton community downstream of the hatchery effluent was domi-
nated by pennate diatoms of the genus Navicula (Table C-3). Diatoms
accounted for 66 percent of the periphytic community. Second and third
ranked members of the periphytic community were filamentous blue-greens
(23 percent) and green flagellates (9 percent).
Analysis of the periphytic community at both T-3 and downstream from
the hatchery effluent identified groups of diatoms, filamentous blue-
green algae, filamentous green algaes, and green flagellate algaes that
were characteristic of organically enriched environments. Since there
was no significant source of allochthonous organic material in this
reach, this community structure was a response to other favorable envi-
ronmental factors of which readily available nutrients was one.
Analysis of the square foot sample demonstrated a macroinvertebrate
community dominated by Gammarus faciatus (53 percent). The midges
Cricotopus (31 percent) and Orthocladius (10 percent) were the second
and third ranking members, of the community (Appendix C). Over all, the
-------
38
community demonstrated a depressed diversity. The Shannon-Weaver
diversity index (d) was 1.66 with an equitability factor (e) of
0.67. Under natural river conditions these parameters would indi-
cate some weakening of the community structure due to organic
enrichment. Considering the absence of organic enrichment and the
absence of comparative data for high stress lotic communities at
the base of impoundments, it would be inadvisable to base any major
hypothesis on the d and e factors. These factors are presented solely
for the purpose of providing an historical data base for future compar-
isons.
An attempt was made on October 16 to assess the impact of benthic photo-
synthetic activity. The experiment involved measuring the oxygen pro-
duction of periphytic material and plain lake water (with its complement
of phytoplankton) in sunlight and measuring the oxygen consumption of
identical samples kept in the dark. All samples were kept submerged in
Lake Taneycomo. The samples in the dark were kept in a sunken ice chest.
The experiment was interupted after one and half hours, and the DO levels
were determined. The results are presented in Table V. The increase in
DO in the plain "dark" bottle severely weakens any hypothesis that may
be formed from the experiment. A later attempt to repeat the experiment
was unsuccessful because of overcast weather. The large increase in DO
in the "light" periphyton bottle and the small decrease in DO in the
"dark" periphyton bottle suggested that the heavy periphytic growths of
the upper reach of Lake Taneycomo were a major source of DO during day-
light and a moderate source of oxygen demand during darkness.
-------
TABLE V
RESULTS OF LIGHT-DARK PERIPHYTON
AND PHYTOPLANKTON EXPERIMENT
Periphyton mg/1
Phytoplankton mg/1
Time
Light
Dark
Light
Dark
1000 hrs
5.4
5.7
4.7
4.8
1125 hrs
11.00
4.3
6.3
7J
-------
40
Additional credence to this supposition is found in the increased
DO levels observed during periods of non-generation in quiet water
out of the main current. The lingering waters were approximately
1 mg/1 greater in DO than "main current" waters because of the longer
contact time over substrates that were covered with thick periphytic
growths.
C. OCTOBER 23-24 STUDY PERIOD
On October 23 and 24, observations were made for the purpose of assess-
ing fish mortality in the reach from 200 ft (60 m) below Table Rock
Dam downstream to T-2.
On the morning of October 23, a dead 15-in. (38-cm) rainbow trout was
found in the rocks approximately 300 ft (90 m) downstream of the power
station (Figure 10). The fish was examined, and no external trauma was
found. The fish had been dead at least 12 hours, and decomposition
made further examination useless. This fish was found upstream from
T-l, an area closed to fishing. Because of its size, it was unlikely
that.it/could have been a creel cull.* When the fish was found, the
DO level in that area was 1.4 mg/1.
On the morning of October 24, a 22-in. (56-cm) rainbow trout (Figure 11)
was found near station T-l. Examination of the fish showed no external
trauma and no damage to the inside of the mouth, esophagus, or gills.
The fish had been dead for approximately six hours. Again, because of
the location (at the boundary line of open and closed water), the lack
of external trauma, and the size, it was unlikely that this fish was a
creel cull. The DO at the discovery point was 1.4 mg/1.
*
Fish released in anticipation of catching a larger fish or to allow
continued fishing by avoiding filling of one's limit.
-------
Figure 10. - Fifteen Inch Rainbov/ Trout Found October 23, 1976 in Waters Closed
to Fishing.
-------
Figure 11. - Tv/enty-Two Inch Rainbow Trout Found October 24, 1976 at
Station T-l.
-------
43
Figure 12 is a plot of the discrete oxygen measurements made on October
23 during overcast weather. It can be seen that the horizontal scale
of this figure has been expanded and that all measurements were made
between stations T-l and T-2. Again, ft can be seen that during a period
of non-generation there was a rapid increase in DO levels between T-l and
T-2 as a result of the reaeration introduced by the riffle areas.
D. JANUARY 7-8 STUDY PERIOD
On January 7-8, DO runs were made in Lake Taneycomo to get data follow-
ing the fall "turnover" in Table Rock Reservoir and to verify the effect
of the upstream riffle areas. The DO runs included one run on January 7
at all the Taneycomo stations and one run during non-generation in the
upper reaches on January 8. Additionally, one DO measurement was taken
at the hatchery influent line at a point in the pipe which precluded
any atmospheric reaeration. Quarter point samples were collected at
T-l at the surface, middepth, and bottom for pH and nutrient analysis.
Also, in order to get a more accurate estimate of Table Rock Dam turbine
leakage, Lake Taneycomo and the hatchery discharges were gauged on Janu-
ary 8 during a period of non-generation.
The January 7 DO data and the power generation release rates are tabu-
lated in Appendix D. The January 8 DO data was not tabulated because of
the lack of bank reference points for many of the stations. Because of
difficulties with laboratory analytical equipment, the nutrient data will
be added to this report as a supplement at a later date.
Figure 13 graphically shows the results of the January 7 and 8 DO runs.
It can be seen that DO levels in the lake were near saturation and that,
-------
October 23, 0815 to 0930 Hours - No Generation
Lake Mileage
Taneycomo Station Numbers
Figure 12#- Dissolved Oxygen Levels in Upper Reaches of Lake
Taneycomo - October 23. 1976.
-------
11
1 0
9
8
7
I
.6
ป
5
3
2
1
0
45
Saturation Concentration
ฉ January 7, 0920 to 1215 hours
flean Flow Rate 0600 to 2200 hours
8120 cfs
O January 8, 0900 to 1150 hours
No Generation
ป > i I i > i i t i i >
2 4 6 5 10 12 1416 18 2 0 22 2k
Lake Mlleaqe
ฆ i i i ii i i
2 3 4 5 6 7 8
Taneycomo Station Numbers
Figure 13. - Dissolved Oxygen Levels in Lake Taneycomo -
January 7-8 Study Period.
-------
46
during generation, DO concentrations were relatively constant throughout
the length of Lake Taneycomo. An examination of Table D-l would also
indicate that there was no significant depth stratification of DO or
temperature in Taneycomo even at the downstream stations. At T-8, the
surface DO was 10.0 mg/1 while the bottom DO [38 ft (12 m)] was 9.5 mg/1.
The January 8 DO run indicated that the DO peak resulting from the riffle
areas was still present. The weather was clear and cold on the morning
of January 7 and overcast and cold on January 8.
The DO of the hatchery intake was measured at 1630 hours on January 7
and was found to be 11.8 mg/1. Why this value was greater than the DO
concentrations found in Lake Taneycomo is not known.
The pH measurements of the nine samples collected at T-l on January 7
are shown below. The average pH (based on mean hydrogen ion concentra-
tion) of these nine measurements was 8.0.
Horizontal Location
Vertical Location Left Bank Midstream Right Bank
Surface 8.1 8.3 7.9
Middepth 8.0 8.3 7.7
Bottom 8.0 8.2 7.8
The results of the gauging of the three hatchery discharges and Lake
Taneycomo immediately downstream from the three discharges were as
follows:
Location Flow Rate*
Upstream Discharge 2.4 cfs
Middle Discharge 6.4 cfs
Lower Discharge 3.9 cfs
Total Hatchery Discharge 12.7 cfs
~
Multiply by 0.0283 to obtain cu m/sec,
-------
47
Location
*
Flow Rate
Lake Taneycomo Downstream
from Hatchery Discharge
127.3 cfs
Calculated Flow Rate
from Table Rock Dam
114.6 cfs
Estimated In-house Generation
20.0 cfs
Calculated Turbine Leakage
94.6 cfs
The gauging sites of the discharges and Lake Taneycomo were less than
satisfactory and the resulting flow rates are estimated to be correct
within ฑ20 percent. Additionally, the gauged flow rate in Lake
Taneycomo should be considered a minimum value since the bottom is
composed of course gravel and a significant amount of subsurface flow
cannot be ruled out. It must, therefore, be concluded that the dam tur-
bine leakage is greater than the 60 cfs (1.7 cu m/sec) estimated by the
Corps.
E. STUDY LIMITATIONS
The data collected to date has satisfied the primary objective of the
study which was to determine the extent of the low DO problem in Lake
Taneycomo. However, there are several factors imposed by the limited
scope of the study which one should consider.
The low DO problem, depending upon yearly climatic fluctuations, appar-
ently extends from the late summer to late fall and is a function of
the controlled release rates from Table Rock Dam. During this fall
period, the Corps tries to limit generation rates and, if necessary,
make surface releases to maintain 4 mg/1. It is extremely improbable
with only two 24-hour study periods that a "worst case" condition under
this controlled operating mode was documented.
Multiply by 0.0283 to obtain cu m/sec.
-------
48
Additionally it would have been highly desireable to approximate an
absolute "worst case" condition by documenting DO levels at maximum
generation rates which were sustained over a two or three-day period.
It is possible that maximum generation could be needed at some time in
the future because of a breakdown in a base load generating facility.
Obviously, this situation could not be simulated without interfering
with normal power production needs and running the high risk of a major
fish kill.
Another factor one must consider when studying the data in this report,
was the number of variables involved. There was no attempt made to
create a controlled situation during any of the study periods. Conse-
quently, the data reflected specific periods and magnitudes of generation
and non-generation as well as diurnal and seasonal variations. It was
not possible to separate out the significance of these separate variables.
Again, it would have been desireable to monitor DO concentrations over
extended periods of both non-generation and generation at some constant
rate. This situation was also not possible without interfering with
normal power production needs.
Finally, the data indicated large daily fluctuations in DO levels. To
provide enough data for modelling and to establish cause and effect rela-
tionships would require practically continuous 24-hour monitoring of
the Taneycomo stations for extended periods. This monitoring could not
be feasible accomplished by the manpower intensive methods used in
August and September. If it becomes necessary to determine cause and
effect relationships and prior to creating a controlled operating
-------
49
condition, it will be necessary to make a substantial investment
in monitoring and recording equipment. It would also be necessary
to make a major manpower commitment.
-------
50
V. SUMMARY
The data presented in this report has shown that during the August
and September study periods, the DO concentration in Lake Taneycomo
was essentially less than the 6.0 mg/1 water quality standard through-
out the length of the lake. This fact becomes particularly apparent
if one does not recognize the stratification in the downstream reaches
of Lake Taneycomo by ignoring mean values and, instead, considers dis-
crete measurements which a strict interpretation of the water quality
standard would require. The data further indicated that major portions
of the lake had DO concentrations of less than 5 mg/1. During the
periods of study, the DO concentration in Lake Taneycomo was consis-
tently equal to or greater than 4 mg/1 with the exception of that area
upstream from T-2.
The August and September data indicated Lake Taneycomo to be vertically
well-mixed throughout most of its length. There was no evidence of
stratification except at stations T-7 and T-8 which are within 4 miles
(6.4 km) of the downstream Ozark Beach Dam. The January DO data indi-
cated no significant stratification at any of the Taneycomo stations.
The August quarter point DO monitoring further indicated that the lake
was reasonably well-mixed laterally.
The investigation revealed wide fluctuations in the DO concentration
at station T-l. The lowest DO values (1.4 to 1.5 mg/1) always occurred
at T-l in the morning hours before commercial generation began. The
lowest DO value recorded at T-l during commercial generation was 4.0 mg/1.
The highest value recorded during generation was 7.5 mg/1. During day-
light hours and periods of non-generation DO concentrations of up to
-------
51
5.5 mg/1 were recorded at T-l. It was concluded that the DO fluctua-
tions at T-l were due to the combination of respiration and photosyn-
thetic reoxygenation. Because of the large daily fluctuations at T-l
which included diurnal variations not directly related to generation
rates, it was concluded that the permanent monitoring station established
by the Corps at this point was not producing data which was representa-
tive of average DO concentrations in Lake Taneycomo. However, it did
clearly produce data which was reflective of minimum concentrations.
The DO fluctuation during non-generation at T-2 resulted from the com-
bination of the diurnal photosynthetic cycle and the atmospheric
reaerating effect of the shallow riffle areas located upstream from
T-2. The data showed that, during periods of non-commercial power pro-
duction, the riffle areas were increasing low-flow DO concentrations by
about 4 mg/1.
The riffle areas were found to be responsible for the DO peaks and appar-
ent reduced downstream concentrations found during periods of non-genera-
tion. It was concluded that the decreases in oxygen concentration were
not due to organics, chemical reaction, or benthic demand, but instead,
resulted from low-flow, high-DO water being diluted in the downstream
large-volume pools by water remaining from a previous commercial genera-
tion period.
In considering the effect of the riffle areas from a DO loading standpoint,
it was surmised that downstream DO concentrations might be maximized at
some flow rate greater than that presently contributed by hatchery opera-
tions, powerhouse internal power generation, and turbine leakage.
-------
52
The results of the stream gauging indicated that the amount of turbine
leakage from Table Rock Dam may be more than the Corps estimated.
-------
53
VI. CONCLUSIONS
Within the range of environmental conditions and the scope of this
investigation, the following conclusions are made:
1. The fall DO concentration levels throughout the length of Lake
Taneycomo were less than the water quality standard of 6.0 mg/1, and
major portions of the lake had DO concentrations of less than 5 mg/1.
2. The DO concentration throughout Lake Taneycomo was equal to or
greater than 4 mg/1 with the exception of the first mile downstream
from Table Rock Dam.
3. The lowest DO concentrations occurred at station T-l during periods
of non-generation. No DO concentration of less than 4 mg/1 was recorded
at T-l during periods of commercial generation.
4. The wide fluctuation in DO concentrations in the upper reaches of
Lake Taneycomo were due to a combination of the benthic diurnal photo-
synthetic cycle, atmospheric reaeration and power generating mode.
5. The reduced DO concentrations found downstream from the peak values
recorded in the riffle areas resulted from the dilution of low-flow,
high-DO water produced during periods of non-generation.
6. The permanent monitoring station established by the Corps of Engi-
neers produced data which was reflective of minimum DO concentrations
in Lake Taneycomo.
-------
54
BIBLIOGRAPHY
1. "Lake Taneycomo Study," EPA, SVAN memorandum, July 30, 1976.
2. "Methods for Chemical Analysis of Water and Wastes," EPA, Office
of Technology Transfer, Washington, D.C., 1974.
3. "Report of Inspection, Branson, Missouri, Shepherd of the Hills
State Fish Hatchery, EPA, SVAN, March 10, 1976.
-------
APPENDIX A
LAKE TANEYCOMO
NUTRIENT, pH, DO, AND
FLOW RATES
AUGUST AND SEPTEMBER, 1976
-------
TABLE A-l
NUTRIENT AND pH LEVELS AT STATION T-l
Time
Military
Vertical
Location
Left Bank
Mid Stream
Right Bank*
Date
1976
PH
N02N03"
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
PH
N02N03+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
pH
N02N03+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
Surface,
7.3
0.36
<0.2
<0.04
<0.1
7.4
0.35
<0.2
0.08
<0.1
7.3
0.36
<0.2
0.14
.<0.1
Mid Depth
7.4
0.35
<0.2
<0.04
<0.1
7.3
0.43
<0.2
0.11
<0.1
7.4
0.35
<0.2
0.09
<0.1
Aug 18
1200
Bottom
7.4
0.53
<0.2
0.04
<0.1
7.4
0.36
<0.2
0.13
<0.1
7.5
0.34
<0.2
0.08
<0.1
Mean
7.4
0.41
<0.2
<0.04
<0.1
7.4
0.38
<0.2
0.11
<0.1
7.4
0.36
<0.2
0.10
<0.1
Surface
7.3
0.31
0.3
0.15
0.1
7.0
0.32
<0.2
0.05
0.2
7.2
0.32
0.2
0.05
0.1
Sept 7
1330
Mid Depth
Bottom
7.1
7.2
0.30
0.32
<0.2
<0.2
0.21
<0.04
0.1 .
0.1
7.1
7.3
0.31
0.31
<0.2
<0.2
0.09
0.10
0.1
0.1
7.1
7.0
0.31
0.30
<0.2
<0.2
0.08
<0.04
0.1
<0.1
**
Mean
7.2
0.31
<0.23
<0.13
0.1
7.1
0.31
<0.2
0.08
0.1
7.1
0.31
<0.2
<0.06
<0.1
Facing downstream.
*~
Mean pH levels are based upon average hydrogen ion concentrations.
+ Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVELS AT STATION T-2
time
Military
Vertical
Location
k
Left Bank
Mid Stream
Right Bank*
Date
1976
PH
N02N03+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
pH
N02N03+
mg/1
TKN
mg/1
MH3-N
mg/1
Total P
mg/1
PH
N02N03+
mg/1
TKN
mg/1
NH3-N
mg/1
Total P
mg/1
Surface
7.4
3.8
<0.2
0.12
<0.1
7.5
3.0
<0.2
0.08
<0.1
7.4
3.1
0.2
0.07
<0.1
Aug 18
1215
Mid Depth
7.5
5.3
<0.2
<0.04
<0.1
7.5
2.9
<0.2
<0.04
<0.1
7.4
2.9
0.2
<0.04
<0.1
Bottom
7.4
2.9
<0.2
0.04
<0.1
7.4
2.8
<0.2
0.04
<0.1
7.4
3.0
<0.2
0.16
<0.1
**
Mean
7.4
4.0
<0.2
<0.07
<0.1
7.5
2.9
<0.2
<0.05
<0.1
7.4
3.0
<0.2
<0.09
<0.1
Surface
7.4
<0.2
0.05
<0.1
7.3
0.28
<0.2
0.13
<0.1
7.4
0.27
<0.2
0.13
<0.1
Sept 7
1400
Mid Depth
7.2
0.32
<0.2
0.12
<0.1 .
7.5
0.28
<0.2
0.11
<0.1
7.2
0.27
<0.2
0.11
0.2
Bottom
7.6
0.28
<0.2
0.11
<0.1
7.5
0.28
0.2
0.07
<0.1
7.6
0.28
<0.2
0.12
<0.1
Mean
7.4
0.30
<0.2
0.09
<0.1
7.4
0.28
<0.2
0.10
<0.1
7.4
0.27
<0.2
0.12
<0.1
~
Facing downstream.
** tn
Mean pH levels are based upon average hydrogen ion concentrations. ^
+ Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVELS AT STATION T-3
Time
Military
Vertical
Location
*
Left Bank
Mid Stream
Right Bank*
Date
1976
pH
NO2NO31
rag/1
TKN
mg/1
NH3-N
mg/1
Total P
mg/1
PH
N02N03+
mg/1
TKN
mg/1
NH3-N
mg/1
Total P
mg/1
PH
N02N03+
rag/1
TKN
mg/1
NH3-N
mg/1
Total P
mg/1
Surface
7.1
0.36
0.2
0.13
0.1
7.4
0.33
<0.2
<0.04
0.3
7.3
0,34
<0.2
0.12
0.2
Aug 17
1120
Mid Depth
Bottom
7.3
7.2
0.33
0.32
<0.2
0.2
0.07
0.21
0.1
0.3
7.3
7.3
0.32
0.30
<0.2
<0.2
0.08
0.06
0.2
0.2
7.4
7.3
0.30
0.30
<0.2
< 0.2
<0.04
<0.04
0.3
0.3
Mean
7.2
0.34
<0.2
0.14
0.2
7.3
0.32
<0.2
<0.06
0.2
7.3
0.31
< 0.2
<0.04
0.3
Surface
7.5
0.31
<0.2
0.09
<0.1
7.5
0.31
<0.2
0.09
<0.1
7.7
0.31
<0.2
0.05
<0.1
Sept 7
1430
Mid Depth
Bottom
7.3
7.3
0.30
0.31
<0.2
<0.2
0.09
0.11
<0.1 .
<0.1
8.0
7.4
0.30
0.31
<0.2
0.3
0.07
<0.04
<0.1
<0.1
7.5
7.3
0.30
0.31
0.2
0.2
<0.04
<0.04
<0.1
<0.1
E
**
Mean
7.4
0.31
<0.2
0.10
<0tl
7.6
0.31
< 0.2
<0.07
<0.1
7.5
0.31
<0.2
<0.04
1
<0.1 |
*
Facing downstream.
Mean pH levels are based upon average hydrogen ion concentrations.
+ Nitrite dIus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVELS AT STATION T-4
Time
Military
Vertical
Location
~
Left Bank
Mid Stream
Right Bank*
Date
1976
pH
N02N031
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
pH
N02N03+
mg/1
TKN
mg/1
NHa-N
mg/1
Total P
mg/1
pH
N02N03+
mg/1
TKN
mg/1
NH3-N
mg/1
Total P
mg/1
Surface
7.5
0.29
0.1
<0.04
0.35
7.2
0.30
<0.2
<0.04
0.22
7.3
0.32
<0.2
<0.04
0.24
Aug 17
1205
Mid Depth
Bottom
7.8
7.4
0.31
0.33
0.2
<0.2
<0.04
<0.04
0.50
0.21
7.3
7.2
0.33
0.31
<0.2
<0.2
0.06
<0.04
0.14
0.18
7.3
7.4
0.31
0.31
<0.2
<0.2
<0.04
<0.04
0.17
0.27
Mean
7.5
0.31
<0.2
<0.04
0.35
7.2
0.31
<0.2
<0.05
0.18
7.3
0.31
<0.2
<0.04
0.23
Surface
7.4
0.31
<0.2
<0.04
<0.1
7.4
0.32
<0.2
<0.04
<0.1
7.4
0.31
<0.2
<0.04
<0.1
Sept 7
1450
Mid Depth
Bottom
7.2
7.7
0.30
0.32
<0.2
0.2
<0.04
<0.04
<0.1
<0.1
7.5
7.5
0.32
0.31
<0.2
<0.2
<0.04
<0.04
<0.1
<0.1
7.5
7.0
0.33
0.32
<0.2
<0.2
<0.04
<0.04
<0.1
<0.1
**
Mean
7.4
0.31
<0.2
<0.04
<0.1
7.5
0.32
<0.2
<0.04
<0.1
7.2
0.32
<0.2
<0.04
<0.1
~
Facing downstream.
** en
Mean pH levels are based upon average hydrogen ion concentrations.
+ Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVELS AT STATION T-5
Vertical
Location
Left Bank
Mid Stream
Right
ank*
Date
1976
Time
Military
pH
N02N03-f
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
PH
N0,N03+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
PH
N02N03+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
Surface
7.5
0.26
<0.2
0.08
0.28
7.5
0.30
<0.2
0.10
0.13
7.5
0.27
<0.2
<0.03
0.23
Mid Depth
7.5
0.27
<0.2
<0.04
0.16
7.4
0.28
<0.2
<0.04
0.15
7.4
0.27
<0.2
0.18
0.19
Aug 17
1230
Bottom
7.3
0.28
<0.2
<0.04
0.10
7.3
0.29
<0.2
0.05
0.10
7.5
0.28
<0.2
<0.04
0.12
. **
Mean
7.4
0.27
<0.2
<0.05
0.18
7.4
0.29
<0.2
<0.06
0.13
7.5
0.27
<0.2
<0.08
0.18
Surface
7.3
0.31
<0.2
<0.04
<0.1
7.4
0.31
<0.2
0.06
<0.1
7.5
0.28
<0.2
0.11
<0.1
Mid Depth
7.4
0.30
<0.2
<0.04
<0.1
7.5
0.28
<0.2
0.05
<0.1
7.2
0.31
<0.2
<0.04
<0.1
Sept 7
1500
Bottom
8.0
0.31
<0.2
0.09
<0.1
7.5
0.30
<0.2
0.05
<0.1
7.3
0.25
<0.2
0.07
0.1
**
Mean
7.5
0.31
<0.2
<0.06
<0.1
7.5
0.30
<0.2
0.05
<0.1
7.3
0.28
<0.2
<0.07
<0.1
Facing downstream.
**
Mean pH levels are based upon average hydrogen ion concentrations. ฐ
+ Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVELS AT STATION T-6
Time
Military
Vertical
Location
~
Left Bank
Mid Stream
Right Bank*
Date
1976
PH
N02N031
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
PH
NOoNO,1"
mg/1
TKN
mg/1
NH3-N
mg/1
Total P
mg/1
PH
N02N03+
mg/1
TKN
mg/1
mh3-n
mg/1
Total P
mg/1
Surface
7.3
0.27
<0.2
<0.04
<0.11
7.3
0.27
<0.2
<0.04
<0.1
7.2
0.33
<0.2
0.11
<0.1
Aug 17
1330
Mid Depth
Bottom
7.4
7.3
0.29
0.30
<0.2
<0.2
<0.04
<0.04
<0.10
<0.10
7.3
7.3
0.28
0.30
<0.2
<0.2
<0.04
<0.04
<0.1
0.16
7.3
7.2
0.30
0.27
<0.2
<0.2
<0.04
0.12
<0.1
<0.1
**
Mean
7.4
0.29
<0.2
<0.04
<0.10
7.3
0.28
<0.2
<0.04
<0.12
7.2
0.30
<0.2
<0.09
<0.1
Surface
7.3
0.29
<0.2
<0.04
0.3
7.3
0.31
<0.2
<0.04
0.27
7.3
0.30
<0.2
0.06
<0.1
Sept 7
1510
Mid Depth
Bottom
7.7
7.8
0.31
<0.2
<0.2
<0.04
<0.04
<0.1
<0.1
7.6
7.7
0.29
0.31
<0.2
<0.2
0.05
0.07
0.12
<0.1
7.7
7.6
ฆ0.31
0.29
<0.2
<0.2
0.07
0.14
<0.1
<0.1
**
Mean
7.5
0.30
<0.2
<0.04
<0.2
7.5
0.30
<0.2
<0.05
<0.16
7.5
0.30
<0.2
0.09
<0.1
*
Facing downstream.
Mean pH levels are based upon average hydrogen ion concentrations,
t Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVLES AT STATION T-7
Time
Military
Vertical
Location
k
Left Bank
Mid Stream
Right Bank*
Date
1976
pH
N02N03-t
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
PH
no2no3+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
PH
no2no3+
mg/1
TKN
mg/1
nh3-n
mg/1
Total P
mg/1
Surface
8.3
<0.2
<0.04
<0.1
8.2
<0.1
<0.2
<0.04
<0.1
8.1
<0.1
0.13
0.15
Mid Depth
7.8
0.11
<0.2
<0.04
<0.1
7.5
0.26
<0.2
<0.04
<0.1
7.5
0.22
<0.04
<0.1
Aug 17
1400
Bottom
7.3
0.28
<0.2
0.10
<0.1
7.2
0.29
<0.2
<0.04
<0.1
7.4
0.34
<0.04
<0.1
. **
Mean
7.6
0.20
<0.2
<0.06
<0.1
7.5
<0.22
<0.2
<0.04
<0.1
7.7
<0^22
<0.07
<0.12
Surface
.8.3
0.06
0.3
0.07
0.31
0.11
0.3
0.10
<0.1
7.9
0.12
0.2
<0.04
<0.1
Mid Depth
7.8
0.19
0.2
0.06
<0.1
7.4
0.29
0.2
<0.04
<0.1
7.4
0.27
0.1
<0.04
<0.1
Bottom
7.7
0.27
0.2
0.08
<0.1
7.5
0.28
0.3
0.07
<0.1
7.4
0.30
0.2
<0.04
<0.1
**
Mean
7.9
0.17
0.2
0.07
<0.17
7.4
0.23
0.3
<0.07
<0.1
7.5
0.23
0.17
<0.04
<0.1
~
Facing downstream.
Mean pH levels are based upon average hydrogen ion concentrations,
t Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-l, CONTINUED
NUTRIENT AND pH LEVELS AT STATION T-8
Vertical
Location
Left Bank
Mid Stream
Right Bank*
Date
1976
Time
Military
PH
N02N031
mg/l
TKN
mg/l
nh3-n
mg/l
Total P
mg/l
PH
NO,NO3+
ml/13
TKN
mg/l
nh3-n
mg/l
Total P
mg/l
PH
N02N03+
mg/l
TKN
mg/l
nh3-n
mg/l
Total P
mg/l
Surface
8.3
0.19
<0.2
<0.04
<0.1
8.4
<0.1
<0.2
0.14
<0.1
8.5
<0.1
<0.2
<0.04
<0.1
Mid Depth
8.0
0.21
<0.2
0.10
<0.1
7.4
0.18
<0.2
0.29
0.13
7.3
0.26
<0.2
<0.04
<0.1
Aug 17
1415
Bottom
7.5
0.31
<0.2
0.22
<0.1
7.2
0.26
<0.2
0.06
<0.1
7.3
0.26
<0.2
<0.04
<0.1
~*
Mean
7.8
0.24
<0.2
<0.12
<0.1
7.4
<0.18
<0.2
0.16
<0.08
7.5
<0.21
<0.2
<0.04
<0.1
Surface
8.4
<0.02
0.3
<0.04
<0.1
8.4
<0.02
<0.2
<0.04
<0.1
8.6
<0.02
0.2
<0.04
<0.1
Mid Depth
8.0
<0.02
0.2
<0.04
<0.1 .
7.4
0.22
<0.2
<0.04
<0.1
7.2
0.27
<0.2
0.06
0.1
Sept 7
1550
Bottom
7.2
0.15
0.2
<0.04
<0.1
7.5
0.25
<0.2
<0.04
<0.1
7.6
0.28
<0.2
<0.04
<0.1
~*
Mean
7.6
<0.06
0.2
<0.04
<0.1
7.6
<0.16
<0.2
<0.04
<0.1
7.5
<0.19
<0.2
<0.05
<0.1
Facing downstream.
Mean pH levels are based upon average hydrogen ion concentrations.
+ Nitrite plus Nitrate Nitrogen as Nitrogen.
-------
TABLE A-2
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - MORNING RUN"
Date
Power
Left Ban
M
i d Stream
Riqht Bank
Station
Aug.
Time
Generation
Dissolved
Depth
Dissolved
Dissolved
1976
cfs *
Depth
Temp
Oxyoen
Temp
Oxvcien
Depth
Temp
Oxvc
en
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
0715
2980
1
13.6
7.0
67
1
13.6
6.6
63
1
13.6
6.6
63
to
2
13.6
7.5
72
2
13.6
6.6
63
2
13.6
6.6
63
0725
4
13.6
7.2
69
4
13.6
6.5
63
4
13.6
6.6
63
6
13.6
6.8.
65
T-l
8
13.6
6.8
65
9
13.5
6.9
66
Mean
13.6
7.2
69
13.6
6.6
63
--
13.6
6.7
64
1
13.1
7.7
67
1
13.2
7.1
67
1
13.2
6.3
59
0730
2980
2
13.1
6.9
65
2
13.2
7.0
66
2
13.2
6.3
59
T-2
to
4
13.1
6.8
64
4
13.2
7.0
66
- -
- -
0735
6
13.1
6.7
63
Mean
13.1
6.9
65
--
13.2
7.0
66
13.2
6.3
59
* Multiply by 0.0283 to obtain cu m/sec
Ol
P*
** Multiply by 0.305 to obtain meters
-------
TABLE A-2, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Date
Power
Left Ban
M
id Stream
Riqht Bank
Station
Aug.
Time
Generation
Uissol vecj
Dissolved
Dissol ved
1976
cfs *
Depth
Temp
Oxygen
Depth
Temp
Oxvaen
Depth
Temp
Ox VP
en
mil
Ft**
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
0745
2980
2
13.6
6.2
60
1
13.6
6.6
63
2
13.6
7.9
76
to
4
13.6
6.2
60
2
13.6
6.5
63
4
13.6
7.4
74
T-3
0755
6
13.6
6.2
60
4
13.6
6.4
62
6
13.6
7.4
72
7
13.6
6.1
59
5
13.6
6.4
62
7
13.6
6.9
66
Mean
13.6
6.2
60
13.6
6.5
62
13.6
6.9
72
0
15
6.5
64
0
14.5
6.6
65
0
14.5
6.6
65
2
14.5
6.5
64
2
14.5
6.6
65
2
14.5
6.6
65
4
14.5
6.4
63
4
14
6.6
63
4
14.5
6.6
65
6
14.5
6.5
64
6
14
6.6
63
1202
5600
8
14.5
6.5
64
8
14
6.6
63
_ -
_ _
_ _
T-4
to
10
14.5
6.5
64
10
14
6.6
63
_
1213
12
14.5
6.5
64
12
14.5
6.7
66
_ _
_ _
14
14.5
6.6
65
--
Mean
14.6
6.5
64
14.2
6.6
64
14.5
6.6
65
* Multiply by 0.0283 to obtain cu m/sec
CT>
cn
** Multiply by 0.305 to obtain meters
-------
TABLE A-2, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Date
Power
Left Bank
M
id Stream
Right Bank
Station
Aug.
Time
Generation
Dissolved
Depth
Dissolved
Dissolved
1976
cfs *
Depth
Temp
Ox.yaen
Temp
Oxvcien
Depth
Temp
Oxvci
en
mil
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
5oSat
Ft **
ฐC
mq/1
%Sat
0
14.0
5.9
57
0
14.0
6.0
58
0
14
5.9
57
2
14.0
5.7
55
2
14.0
5.7
55
2
14
5.8
56
4
14.0
5.6
54
4
13.5
5.6
54
4
13.5
5.6
54
6
13.5
5.5
53
6
13.5
5.5
53
6
13.5
5.6
54
0613
None
8
13.5
5.3
51
8
13.5
5.5
53
8
13.5
5.6
54
T-5
to
10
13.5
5.3
51
10
13.5
5.5
53
10
13.5
5.5
53
0630
12
13.5
5.3
51
12
13.5
5.4
52
12
13.5
5.5 -
53
14
13.5
5.3
51
14
13.5
5.4
52
14
13.5
5.4
52
16
13.5
5.3
51
16
13.5
5.4
52
16
13.5
5.4
52
18
13.5
5.2
50
18
13.5
5.4
52
- -
20
13.5
5.2
50
20
13.5
5.3
51
Mean
13.6
5.4
52
13.6
6.0
53
13.6
5.6
54
* Multiply by 0.0283 to obtain cu m/sec
CT>
** Multiply by 0.305 to obtain meters
-------
TABLE A-2, CONTINUED
AUGUST 18, 1076 DISSOLVED OXYCEN DATA - MORNING RUN
Station
Date
Aug.
1976
Time
mil
Power
Generation
cfs
Left Ban
M
id Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxygen
Depth
Ft
Temp
ฐC
Dissolved
Oxvnen
Depth
Ft
Temp
ฐC
Disso
Oxvc
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
0
14
6.0
58
0
14
6.0
58
0
14
6.4
62
2
14
5.9
57
2
14
5.9
57
2
14
6.2
60
4
14
5.9
57
4
14
5.9
57
4
14
6.1
59
6
14
5.9
57
6
14
5.9
57
6
14
6.0
58
8
14
5.9
57
8
14
5.9
57
8
14
6.0
58
10
14
5.9
57
10
14
5.9
57
10
14
6.0
58
12
14
5.9
57
12
14
5.9
57
12
14
6.0
58
14
14
5.9
57
14
14
5.9
57
14
14
6.0
58
16
14
5.9
57
16
14
5.9
57
16
14
6.0
58
18
14
5.9
57
18
14
5.9
57
18
14
6.0
58
20
14
5.9
57
20
14
5.9
57
20
14
6.0
58
22
14
5.9
57
22
14
5.9
57
22
14
5.9
57
24
14
5.9
57
24
14
5.9
57
24
14
5.9
57
26
14
5.9
57
26
14
5.9
57
26
14
5.9
57
28
14
5.9
57
28
14
5.9
57
28
14
5.9
57
30
14
5.9
57
30
14
6.0
58
30
14
5.9
57
32
14
5.9
57
32
14
6.0
58
32
14
5.9
57
34
14
5.9
57
34
14
6.0
58
34
14
5.9
57
36
14
5.9
57
36
14
6.0
58
36
14
5.9
57
38
14
5.9
57
38
14
6.0
58
38
14
5.9
57
40
14
5.9
57
40
14
6.0
58
40
14
5.8
56
42
14
5.9
57
42
14
6.0
58
42
14
5.8
56
44
14
5.9
57
44
14
6.0
58
44
14
5.8
56
14
5.9
57
14
5.9
57
14
6.0
58
T-6
0655
to
0725
None
Mean
* Multiply by 0.0283 to obtain cu m/sec
o>
** Multiply by 0.305 to obtain meters
-------
TABLE A-2, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Station
Date
Aug.
1976
Time
mil
Power
Generation
cfs *
Left Ban
<
M
id Stream
Riqht Bank
Depth
Ft **
Temp
ฐC
Diss
Ow
>ol ved
'qen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft**
Temp
ฐC
Disso
Oxvo
1 ved
en
mq/1
XSat
mq/1
%Sat
mq/1
%Sat
T-7
0818
to
0831
2900
0
2
4
6
8
10
12
14
16
1R
20
22
24
26
28
30
32
34
36
19
18
18
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
7.2
6.7
6.5
6.4
6.4
6.4
6.2
6.3
6.2
6.1
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
77
71
68
66
66
66
64
65
64
63
62
62
62
62
62
62
62
62
62
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
19
17.5
17.5
17.5
17.5
17
17
17
17
17
17
16.5
16.5
16.5
16.5
16.5
16.5
16.5
7.5
6.6
6.5
6.6
fi.6
6.5
6.3
6.3
6.3
5.9
5.6
5.5
5.3a
5.3
5.3
5.3
5.3
5.6
80
69
68
69
69
68
65
65
65
61
58
57
55
54
55
55
55
57
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
19
18
18
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
7.2
6.7
6.5
6.4
6.4
6.4
6.2
6.3
6.2
6.1
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
f.n
6.0
6.0
6.0
77
71
68
66
66
66
64
65
64
63
62
62
62
62
62
62
62
62
62
62
62
62
Mean
17
6.2
64
--
17
6.0
63
--
17 6.3
66
* Multiply by 0.0283 to obtain cu m/sec
CT>
00
** Multiply by 0.305 to obtain meters
-------
TABLE A-2, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Date
Power
Left Ban
Mi d Stream
Right Bank
Station
Aug.
Time
Generation
Dissolve4
Dissolved
Dissolved
1976
cfs *
Depth
Temp
c
a)
D
ฃ
ฉ
Depth
Temp
Oxvaen
Depth
Temp
Oxvc
en
mil
Ft **
ฐC
ma/1
%Sat
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
0
24
10.6
125
0
24
10.8
127
0
23,5
10,6
125
2
24
10.6
125
2
24
10.8
127
2
23.5
10,6
125
4
21
9.8
108
4
21
9.5
106
4
22
9.8
111
6
21
8.7
96
6
20.5
8.3
90
6
20.5
8.8
98
8
19.5
7.9
86
8
20
7.7
84
8
19.5
7.6
83
--
--
10
19
7.2
77
10
19
6.8
72
12
18.5
6.5
69
12
18
6.1
62
X
14
18
6.2
65
14
18
6.0
64
w "ฆ
16
18
6.1
64
16
18
6.0
63
0959
--
--
--
18
18
6.0
63
18
18
6.0
63
T-8
to
2900
20
17.5
5.7
60
20
18
6.0
63
1034
--
22
17
5.5
57
22
18
6.0
63
^ tm
24
17
5.5
57
24
18
5.9
62
26
17
5.4
56
26
17.5
5.4
57
28
17
5.3
55
28
17
5.4
56
30
17
5.4
56
30
17
5.4
56
32
17
5.35
55
~
34
17
5.4
56
36
17
5.3
55
38
17
5.2
54
.
40
17
5.1
53
""
42
17
4.8
49
ฆ
--
--
--
44
17
A.6
47
Mean
?1
9.5
108
20
6.9
76
18
6.4
69
* Multiply by 0.0283 to obtain cu m/sec
-------
TABLE A-3
AUGUST 18. 197.6 DISSOLVED OXYGEN DATA - EVENING RUN
Date
Power
Left Bank
M
id Stream
Riqht Bank
Station
Aug.
Time
Generation
Dissolved
Depth
Temp
Dissolved
Dissolved
1976
cfs *
Depth
Temp
Oxyaen
Oxvoen
Depth
Temp
Pxvo
en
mil
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mn/1
%Sat
Ft **
ฐC
mq/1
%Sat
0
13.6
6.3
61
0
13.6
5.5
53
2
13.8
,5.5
53
1835
2
13.6
5.6.
54
1
13.6
5.5
53
4
13.8
5.5
53
T-l
to
7270
--
--
--
--
--
6
13.8
5.5
53
1845
10
13.8
5.5
53
Mean
13.6
6.0
58
13.6
5.5
53
13,8
5.5
53
0
13.7
6.1
59
0
13.6
5.7
55
0
13.6
5.8
56
2
13.7
5.9
57
2
13.6
5.7
55
2
13.6
5.8
56
1855
4
13.7
5.8
56
4
13.6
5.7
55
4
13.6
5.8
56
6
13.7
5.7
55
6
13.6
5.6
54
6
13.6
5.8
56
T-2
to
7270
--
--
--
--
8
13.6
5.8
56
1905
10
13.6
5.4
52
Mean
13.7
5.9
57
--
13.6
5.7
55
13.6
5.7
52
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-3, CONTINUED
AUGUST 18, H7f. DISSOLVED OXYGEN DATA - EVENING RUN
Date
Power
Left Bank
Mid' Stream
Right Bank
Station
Aug.
Time
Generation
Dissolved
Depth
Temp
Dissolved
Dissol ved
1976
mil
cfs*
Depth
Temp
Oxyqen
Oxvaen
Depth
Temp
Oxva
en
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
ma/1
%Sat
Ft**
ฐC
mq/1
fcSat
0
13.8
6.5
63
0
13.8
6.1
59
0
13.8
6.4
62
1920
2
13.8
6.0
58
4
13.8
6.0
58
4
13.8
6.2
60
T-3
to
7270
4
13.8
6.0
58
8
13.7
6.0
58
6
13.8
6.0
58
1930
6
13.8
6.0
58
--
--
8
13.8
6.0
58
_ _
_ _
10
13.8
6.0
58
--
--
Mean
13.8
6.1
59
13.8
6.0
58
13.8
6.2
60
0
13.8
6.0
58
0
13.8
6.1
59
0
13.8
6.1
59
T-4
1950
7270
4
13.8
6.0
58
4
13.8
6.1
59
4
13.9
6.1
59
8
13.8
6.0
58
8
13.8
6.1
59
8
13.9
6.2
60
10
13.8
6.0
58
12
13.8
6.0
58
12
13.9
6.2
60
Mean
--
13.8
6.0
58
13.8
6.1
59
13.9
6.2
60
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-3, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Date
Power
Left Bank
Mid Stream
Riqht Bank
Station
Aug
Ti ire
Generation
Dissol ved
Depth
Temp
Dissolved
Dissnlved
1976
cfs *
Depth
Temp
Ox.yqen
Oxvaen
Depth
Temp
Oxvc
en
mil
Ft **
ฐC
mg/1
%Sat
-Ft **
ฐC
mq/1
%Sat
Ft**
ฐC
mq/1
%Sat
0
16
6.6
66
0
16
6.6
66.
0
16
7.0
70
2
16
6.5
65
2
16
6.5
65
2
16
7.0
70
4
16
6.5
65
4
16
6.5
65
4
16
6.9
69
2000
6
16
6.5
65
6
16
6.5
65
6
16
6.9
69
T-5
to
7270
8
16
6.5
65
8
16
6.5
65
8
16
6.9
69
2018
10
16
6.5
65
10
16
6.5
65
10
16
6.8
69
12
16
6.5
65
12
16
6.5
65
12
16
6.8
69
14
16
6.5
65
14
16
6.5
65
14
16
6.9
69
16
15.5
6.4
61
16
16
6.5
65
16
16
6.9
69
18
15.5
6.4
64
18
16
6.5
65
--
--
--
20
16
6.5
65
--
--
Mean
15.9
6.5
65
16
6.5
65
16
6.9
69
* Multiply by 0.0283 to obtain cu m/sec
ro
** Multiply by 0.305 to obtain meters
-------
TABLE A-3, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Date
Power
Left Bank
Mi d Stream
Riqht Bank
Station
Auq.
Time
Generation
Dissolved
Depth
Temp
Dissolved
Dissolved
1976
cfs *
Depth
Temp
Ox.yqen
Oxvaen
Depth
Temp
Oxvq
en
mi 1
Ft**
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
0
15.5
5.0
50
0
15.5
5.2
52
0
15.5
5.3
53
2
15.5
4.9
49
2
15.5
5.0
50
2
15.5
5.1
51
4
15.5
4.8
48
4
15.5
5.0
50
4
15.5
5.0
50
6
15.5
4.8
48
6
15.5
4.9
49
6
15.5
5.0
50
8
15.5
4.8
48
8
15.5
4.9
49
8
15.5
5.0
50
10
15.5
4.8
48
10
15.5
4.9
49
10
15.5
5.0
50
12
15.5
4.8
48
12
15.5
4.9
49
12
15.5
5.0
50
1932
14
15.5
4.8
48
14
15.5
4.9
49
14
15.5
5.0
50
T-6
to
7270
16
15.5
4.8
48
16
15.5
4.9
49
16
15.5
5.0
50
1952
18
15.5
4.8
48
18
15.5
4.9
49
18
15.5
5.n
50
20
15.5
4.9
49
20
15.5
4.9
49
20
15.5
5.0
50
22
15.5
4.9
49
22
15.5
4.9
49
22
15.5
4.9
49
24
15.5
4.9
49
24
15
4.9
49
2A
15.5
4.9
49
26
15.5
4.9
49
26
15
A.8
48
26
15.5
A.9
$9
28
15.5
4.9
49
28
15
4.8
48
--
--
30
15.5
4.9
49
30
15
4.8
48
--
--
Mean
15.5
4.8
49
15.5
4.9
49
15.5
5.0
50
* Multiply by 0.0283 to obtain cu m/sec
CJ
** Multiply by 0.305 to obtain meters
-------
TABLE A-3, CONTINUED
AUGUST 18, 1976 DISSOLVEO OXYGEN DATA - EVENING HUN
Date
Power
Left Bank
Mid Stre
ปam
Riqht Bank
Station
Aug.
Time
Generation
Dissolved
Depth
Temp
Dissolved
Dissolved
1976
cfs *
Depth
Temp
Oxynen
Oxvcten
Depth
Temp
Oxvf]
en
mil
Ft **
ฐC
ma/1
*Sat
Ft **
ฐC
mn/1
%Sat
Ft**
ฐC
mg/1
%Sat
0
23
7.6
R7
0
22
6.9
78
0
21.5
7.0
80
2
18
6.2
65
2
20
6.6
72
2
20
6.6
72
4
17
5.7
59
4
17
5.7
59
4
18
6.0
63
6
17
5.5
57
6
17
5.5
57
6
17
5.7
59
1900
R
17
5.5
57
8
17
5.5
57
8
17
5.6
58
10
17
5.4
56
10
17
5.4
56
10
17
5.5
57
1-7
to
7270
12
17
5.4
56
12
17
5.4
56
12
17
5.5
57
1918
14
17
5.4
56
14
16.5
5.3
55
14
17
5.5
57
16
17
5.5
55
16
16.5
5.3
55
16
17
5.5
57
--
18
16.5
5.3
55
18
17
5.4
56
20
17
5.4
56
T
22
17
5.4
56
am ซ
24
17
5.4
56
mm m
26
17
5.4
56
Mean
18
5.7
61
--
17.5
5.6
60
17.5
5.7
60
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-3, CONTINUED
AUGUST 18, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Date
Power
Left Ban
M
id "Stream
Riqht Bank
Station
Aug
Time
Generation
Dissolved
Depth
Temp
Dissolved
Dissol ved
1976
cfs *
Depth
Temp
Oxyaen '
Oxvoen
Depth
Temp
Oxvo
en
mil
Ft **
ฐC
ma/1
%Sat
Ft **
ฐC
mn/1
%Sat
Ft **
ฐC
mq/1
%Sat
0
ฆ
12.4
153
0
26
11.2
137
0
26
10.6
129
2
25
11.2
133
2
25
11.2
133
2
25
10.0
120
4
24
12.0
141
4
24
10.9
128
4
24
10.8
127
6
21
9.2
102
6
21
8.6
96
6
22
10.0
114
R
20
8.1
88
8
20
7.2
78
8
21
9.n
100
10
20
7.9
86
10
20
6.8
74
10
20
7.T
79
12
19
6.5
69
12
19
6.0
64
14
19
6.3
67
14
19
5.8
6?
- -
16
19
6.1
65
16
19
5.8
62
1817
18
19
6.0
64
18
19
5.8
61
T-8
to
7270
20
19
6.0
64
20
19
5V7
61
1850
22
19
5.8
62
22
19
5.7
61
24
19
5.8
62
24
18.5
5.5
59
26
18.5
5.6
60
26
18.5
5.5
59
28
18.5
5.5
59
2R
18.5
5.4
57
30
18
5.4
56
30
18
5.3
56
-
32
18
5.3
56
32
18
5.2
55
- -
34
18
5.2
55
34
18
5.2
55
- -
36
18
5.2
55
36
1R
5:2
55
38
18
5.2
55
38
18
5.2
54
40
18
5.2
55
40
18
5.1
54
42
18
5.2
55
42
18
5?0
53
--
- -
--
44
18
5.2
55
44
18
5 0
53
Mean
--
23
10
120
19
6.1
72
20
6.5
70
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-4
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Station
Date
Auq.
1976
Time
mil.
Power
Generation
cfs
Left Bank
Mid Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Uissolved
Ox.yqen
Depth
Ft**
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Oxva
1 ved
en
mq/1
%Sat
mq/1
%Sat
mg/1
%Sat
T-l
19
1134
to
1140
3300
0
4
8
15
15
15
4.3
4.2
4.2
42
42
42
0
4
6
15
15
15
4.9
4.8
4.9
48
47
48
0
4
6
15
15
15
5.0
5.0
5.0
49
49
49
Sub Mean
15
4.2
42
15
4.9
48
15
5
49
1619
to
1629
7500
0
2
4
6
14
14
14
14
4.2
4.0
4.0
3.9
40
38
38
38
0
4
6
14
14
14
4.4
4.3
4.3
42
41
41
0
4
8
10
14
14
14
14
4.6
4.5
4.5
4.5
44
43
43
43
Sub Mean
14
4.0
38
14
4.3
41
14
4.5
43
Mean
-
14
4.1
40
_ _
14
4.6
44
_ _
14
4.8
46
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Date
Power
Left Ban
M
id Stream
Right Bank
Station
Auq.
Time
Generation
Dissolved
Dissolved
Dissolved
1976
mil.
cfs*
Depth
Temp
Oxyaen
Depth
Temp
Oxvaen
Depth
Temp
Oxvc
en
Ft
ฐC
mq/1
%Sat
Ft**
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
0415
None
0
13.8
7.5
72
0
15.6
6.8
65
0
13.4
6.5.
61
to
3
13.8
7.1
68
2
13.6
6.5
63
2
13.4
6.5
61
0425
Sub Mean
13.&
7.3
70
--
13.6
6.6
64
13.4
6.5
61
19
1110
3100
0
15
5.6
55
0
15
5.8
57
0
15
6.2
61
T-2
to
2
15
5.6
55
2
15
5.8
57
2
15
6.1
60
1118
4
15
5.7
56
4
15
5.8
57
_ _
_
6
15
5.7
56
6
15
5.7
56
_
Sub Mean
--
15
5.6
56
15
5.8
57
15
6.1
60
1603
7500
0
14
4.4
42
0
14
4.5
43
0
14
4.6
44
to
4
14
4.2
40
4
14
4.4
42
2
14
4.6
44
1614
6
14
4,2
40
6
14
4.3
41
4
14
4.6
44
Sub Mean
14
4.3
41
14
4.4
42
--
14
4.6
44
Mean
14
5.5
54
14
5.5
53
14
5.6
53
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Station
Date
Aug
1976
Time
mil.
Power
Generation
cfs*
Left Ban
M
id Stream
Riqht Bank
Depth
Ft **
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft**
Temp
ฐC
Disso
Oxvo
1 ved
en
ma/1
*Sat
mn/1
%Sat
mg/1
%Sat
T-3
19
0305
to
0315
none
0
2
3
14
14
14
4.7
4.7
4.6
45
45
44
0
2
14
14
4.7
4.7
45
45
0
2
4
6
14
14
14
14
4.9
4.7
' 4.7
4.7
47
45
45
45
Sub Mean
14
4.7
45
14
4.7
45
14
4.8
45
1049
to
1056
3050
0
4
8
15
15
15
6.9
6.9
6.9
68
68
68
0
4
8
15
15
15
6.5
6.4
6.4
64
63
63
0
4
8
15
15
15
6.4
6.3
6.3
63
62
62
Sub Mean
15
6.9
68
15
6.4
63
15
6.3
62
1546
to
1554
7000
0
4
8
10
15
15
15
15
6.7
6.6
6.7
6.7
66
65
66
66
0
4
8
15
15
15
6.5
6.3
6.3
64
62
62
0
4
6
14.5
15
15
6.4
6.4
6.4
63
63
63
Sub Mean
15
6.7
66
15
6.4
63
15
6.4
63
Mean
15
6.2
60
15
6.0
58
15
5.7
56
* Multiply by 0.0283 to obtain cu m/sec
^s|
CD
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Date
Power
Left Ban
<
M
id Stream
Riqht Bank
Station
Aug
Time
Generation
Dlssol vecj
Depth
Temp
Dissolved
Dissolved
1976
mil.
- *
cfs
Depth
Temp
Oxyqen
Oxvaen
Depth
Temp
Oxvo
en
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
Ft**
ฐC
mq/1
%Sat
0??n
0
14
4.4
42
0
14
4.5
43
0
14
4.5
43
vL O \J
4
14
4.4
42
4
14
4.4
42
4
14
4.4
42
UU
8
14
4.3
41
8
14
4.4
42
8
14
4.4
42
UtHU
9
14
4.3
41
10
14
4.3
41
12
14
4.4
42
Sub Mean
14
4.3
42
14
4.4
42
14
4.4
42
0
14
4.9
47
0
14
4.9
47
0
14
4.8
46
4
14
4.8
46
4
14
4.8
46
4
14
4.8
46
T A
1 0
1036
8
14
4.8
46
8
14
4.8
46
8
14
4.8
46
1
to
3050
12
14
4.9
47
12
14
4.8
46
1042
--
--
--
--
--
16
14
4.8
46
Sub Mean
14
4.8
46
14
4.8
46
14
4.8
46
0
15
7.4
75
0
15
7.5
74
0
15.5
7.2
72
1524
4
15
7.4
73
4
15
7.4
73
4
15.5
7.2
72
to
5600
8
15
7.5
74
8
15
7.5
74
8
15.5
7.4
74
1538
12
15
7.5
74
12
15
7.5
74
12
15.5
7.5
75
--
16
15.5
7.6
76
Sub Mean
15
7.4
74
15
7.5
74
15.5
7.4
74
Mean
16
6.2
53
14
5.6
54
--
15
5.6
55
* Multiply by 0.0283 to obtain cu m/sec
vo
** Multiply by 0.305 to obtain meters
-------
TABLE A-4-, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Date
Power
Left Ban
N
i d Stream
Riqht Bank
Station
Aug
Time
Generation
bissol ved
Dissolved
Dissolved
1976
mil.
cfs *
Depth
Temp
Oxyqen
Depth
Temp
Oxvoen
Depth
Temp
Pxvc
en
Ft **
ฐC
mq/1
%Sat
Ft **
ฐC
mq/1
%Sat
Ft**
ฐC
mq/1
%Sat
0
14.5
5.5
54
0
15
5.4
53
0
14
5.5
53
M
4
14.5
5.4
53
4
15
5.3
52
4
15
5.4
53
8
14.5
5.3
52
8
14.5
5.2
51
8
15
5.3
53
nunc
12
14.5
5.3
52
12
14.5
5.2
51
12
15
5.3
53
16
14.5
5.2
51
16
14.5
5.2
51
--
20
14.5
5.3
52
--
--
--
19
Sub Mean
14.5
5.3
52
14.7
5.3
52
15
5.4
53
T-5
0
15.5
5.7
57
0
15.5
5.7
57
0
15.5
5.7
57
1010
4
15.0
5.5
54
4
15.0
5.5
54
4
15.0
5.5
54
to
3050
8
15.0
5.5
54
8
15.0
5.5
54
8
15.0
5.5
54
1019
12
15.0
5.3
52
12
15.0
5.4
53
12
15.0
5.4
53
16
15.0
5.2
51
16
15.0
5.4
53
_ซ
20
15.0
5.2
51
--
Sub Mean
15.0
5.4
53
15.1
5.5
54
15.1
5.5
54
* Multiply by 0.0283 to obtain cu m/sec
00
o
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Station
Date
Aug
1976
Time
mil.
Power
Generation
cfs*
Left Ban
ฃ
Mid Stream
Riqht Bank
Depth
Ft **
Temp
ฐC
Uissol vecj
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft**
Temp
ฐC
Disso
Oxvc
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-5
(contd)
19
1458
to
1507
3750
0
4
8
12
16
20
15.5
15.0
15.0
15.0
15.0
15.0
5.3
5.0
4.9
4.9
5.0
5.0
53
49
48
48
49
49
0
4
8
12
16
15.5
15.5
15.0
15.0
15.0
15.0
5.3
5.1
4.9
4.9
5.0
53
51
48
48
49
0
4
8
12
16
16
15
15
15
15
5.4
5.1
4.9
4.9
4.9
54
50
48
48
48
Sub Mean
15.0
5.0
49
.15.0
5.0
50
15
5.0
50
Mean
15.0
5.2
51
15.0
5.3
52
15
5.3
52
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Date
Power
Left Bank
M
id Stream
Riqht Bank
Station
Aug
Time
Generation
Dissolved
Depth
Dissolved
Dissolved
1976
mil.
cfs
Depth
Temp
Oxyqen
Temp
Oxvaen
Depth
Temp
Oxva
en
Ft **
ฐC
ma/1
%Sat
Ft
ฐC
ma/1
%Sat
Ft **
ฐC
mq/1
%Sat
0
15.5
6.6
66
0
15.5
6.7
67
0
16
6.6
66
4
15.5
6.5
65
4
15.5
6.6
66
4
16
6.6
66
8
15.5
6.5
65
8
15.5
6.6
66
8
16
6.6
66
0050
12
15.5
6.4
64
12
15.5
6.6
66
12
16
6.5
65
to
none
16
15.5
6.5
65
16
15.5
6.6
66
16
16
6.6
66
0100
20
15.5
6.5
65
20
15.5
6.6
66
--
--
24
15.5
6.5
65
24
15.5
6.6
66
--
--
27
15.5
6.7
67
28
15.5
6.6
66
--
_ -
--
30
15.5
6.7
67
--
19
Sub Mean
15.5
6.5
65
15.5
6.6
66
16
6.6
66
T-6
0
16
6.6
66
0
16
6.6
66
0
16
6.6
66
4
16
6.5
65
4
16
6.5
65
4
15.5
6.5
65
0944
8
16
6.5
65
8
15.5
6.5
65
8
15.5
6,5
65
to
3000
12
16
6.6
66
12
15.5
6.5
65
12
15.5
6.5
65
0958
16
16
6.6
66
16
15.5
6.6
66
16
15.5
6.6
66
20
15.5
6.6
66
20
15.5
6.6
66
20
15.5
6.6
66
24
15.5
6.6
66
24
15.5
6.6
66
--
--
26
15.5
6.6
66
28
15.5
6.6
66
Sub Mean
16
6.6
66
15.5
6.6
66
--
15.5
6.6
66
* Multiply by 0.0283 to obtain cu m/sec
r\>
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Station
Date
Aug
1976
Time
mil.
Power
Generation
cfs *
Left Bank
Mi d Stream
Riqht Bank
Depth
Ft**
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft**
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft **
Temp
ฐC
Disso
Oxvc
1 ved
en
ma/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-6
(contd)
19
1437
to
1451
3700
0
4
8
12
16
20
24
28
17
16
16
16
15.5
15.5
15.5
15.5
6.4
6.0
6.0
6.0
6.0
6.0
6.0
6.0
66
60
60
60
60
60
60
60
0
4
8
12
16
20
24
28
17.5
16.5
15.5
15.5
15.5
15.5
15.5
15.5
6.4
6.1
5.9
5.9
6.0
6.0
6.0
6.0
67
63
59
59
60
60
60
60
0
4
8
12
18
16
15.5
15.5
15.5
15.5
15.5
15.5
6.6
6.6
6.1
5.9
5.9
5.9
5.9
5.9
66
69
61
59
59
59
59
59
Sub Mean
16. ,
6.0
61
16
6.0
61
16
6.1
59
Mean
16
6.4
64
16
6.4
64
16
6.5
64
* Multiply by 0.0283 to obtain cu m/sec
00
CO
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 UOUR RUN
Date
Power
Left Ban
<
Mid Stream
Riqht Bank
Station
Aug
1976
Time
mil.
Generation
cfs *
Depth
Ft**
Temp
ฐC
Dissolved
Oxyqen
Depth
Temp
Dissolved
Oxvaen
Depth
Temp
Disso
Pxva
1 ved
en
ma/1
%Sat
Ft**
ฐC
ma/1
%Sat
Ft**
ฐC
ma/1
%Sat
18
2345
to
2400
3050
0
4
8
19
16.5
16
11.2
10.8
9.5
119
111
95
0
4
8
12
16
19
16.5
11
16
11
7.6
5.7
5.7
5.6
5.6
81
59
59
56
56
0
4
8
12
16
20
19.5
17
16.5
16
16
16
6.6
6.0
5.7
5.6
5.6
5.6
72
62
59
56
56
56
Sub Mean
17
10.5
108
6.0
62
17
5.8
60
T-7
0844
to
0856
3700
0
4
8
12
17
16.5
16
16
6.7
5.8
5.7
5.8
69
60
57
58
0
4
8
12
16
17
16.5
16
16
16
6.6
5.9
5.8
5.7
5.6
68
61
58
57
56
0
4
8
12
16
20
17
17
16
16
16
16
5.6
6.7
6.2
5.8
5.7
5.7
69
64
58
57
57
59
19
Sub Mean
16
6.0
61
16
6.0
60
16
5.9
60
1335
to
1345
1700
0
4
8
12
20.5
17
16
16
6.5
5.7
5.3
5.2
ซป
72
59
53
52
0
4
8
12
16
20
17.5
16
16
16
6.3
5.9
5.4
5.3
5.2
68
62
54
53
52
0
4
8
12
16
20
19
17
16.5
16
16
16
6.2
5.7
5.5
5.5
5.3
5.2
66
59
57
55
53
52
Sub Mean
17
5.6
59
17
5.6
58
17
5.6
57
Mean
17
7.1
73
17
5.9
60
17
5.8
59
* Multiply by 0.0283 to obtain cu m/sec
-p*
** Multiply by 0.305 to obtain meters
-------
TABLE A-4-, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Station
Date
Aug
1976
Time
mil.
Power
Generation
cfs *
Left Bank
Mid Stream
Riqht Bank
Depth
Ft**
Temp
ฐC
Disso 1 ved
Oxyqen
Depth
Ft**
Temp
ฐC
Dissolved
Oxvcien
Depth
Ft
Temp
ฐC
Disso
Oxvo
1 ved
en
ma/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-8
18
2230
to
2245
4500
0
4
8
12
26
23.5
21
19
10.8
11.2
8.4
6.3
132
132
93
67
0
4
8
12
16
20
24
28
32
36
40
44
48
25
25
20
19
18.5
18.5
18.5
18
18
18
18
18
18
10.4
10.4
7.6
6.2
5.8
5.6
5.6
5.4
4.2
5.2
5.1
5.0
4.8
124
124
83
66
62
60
60
57
44
55
54
53
51
Sub Mean
22
9.1
110
19
6.2
69
* Multiply by 0.0283 to obtain cu m/sec
CO
en
** Multiply by 0.305 to obtain meters
-------
TARLE A-4., CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Date
Power
Left Bank
Mid Stream
Right Bank
Station
Aug
Time
Generation
Dissolved
Depth
Temp
Dissolved
Dissol ved
1976
mil.
cfs *
Depth
Temp
Oxyaen
Oxvaen
Depth
Temp
Oxva
en
Ft**
ฐC
mq/1
%Sat
Ft**
ฐC
ma/1
%Sat
Ft**
ฐC
mq/1
XSat
0
22
10.6
120
0
23
10.4
120
0
23
10.4
119
4
21
9.4
104
4
22
9.8
111
4
21
10.0
111
8
19
6.4
68
8
19
6.6
70
8
19
6.7
71
--
--
12
18
5.9
62
12
18
6.0
63
0806
16
18
5.4
57
16
18
5.4
57
T-8
19
to
none
20
17.5
5.3
56
20
17.5
5.4
57
(contd)
0831
24
17.5
5.3
56
24
17.5
5.3
58
--
28
17.5
5.3
56
28
17.5
5.5
58
32
17.5
5.5
58
36
17
5.6
58
40
17
5.4
56
Sub Mean
Z1
8.8
9/
--
19
6.7
74
18
5.4
75
* Multiply by 0.0283 to obtain cu m/sec
00
CTป
** Multiply by 0.305 to obtain meters
-------
TABLE A-4, CONTINUED
AUGUST 18-19, 1976 DISSOLVED OXYGEN DATA - 24 HOUR RUN
Date
Power
Left Bank
Mid Stream
Riqht Bank
Station
Aug
Time
Generation
Dissolved
Depth
Dissolved
Dissolved
1976
mil.
cfs *
Depth
Temp
Oxyqen
Temp
Oxvaen
Depth
Temp
Oxvc
en
Ft**
ฐC
mg/1
%Sat
Ft **
ฐC
mo/1
%Sat
Ft **
ฐC
mq/1
%Sat
0
26.5
9.9
122
0
25.5
9.9
121
0
26
9.9
121
4
22.5
9.6
110
4
21
8.8
98
4
24
9.5
112
8
19
6.7
71
8
19
6.6
70
8
19
7.2
77
1304
12
18.5
6.2
66
12
18.5
6.2
66
T-8
19
to
3800
16
18
5.9
62
16
18.5
5.8
62
(contd)
1322
20
18
5.7
60
20
18
5.8
61
24
18
5.4
57
24
17.5
5.6
59
28
17
5.3
55
28
17.5
5.6
59
32
17.5
5.5
58
36
17
5.5
58
40
17
5.4
56
Sub Mean
23
CO
101
19
6.7
74
19
6.5
72
Mean
22
8.9
103
19
6.5
72
18
6.0
74
* Multiply by 0.0283 to obtain cu m/sec
00
** Multiply by 0.305 to obtain meters
-------
TABLE A-5
SEPTEMBER 8, 1976 ^DISSOLVED OXYGEN: DATA - MORNING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
Mid Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Oxvci
1 ved
en
mq/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-l
08
0748
to
0749
None
0
2
4
13.4
13.4
13.4
1.5
1.5
1.5
14
14
14
Mean
13.4
1.5
14
1-2
08
0712
to
0713
None
0
2
3
13.7
13.7
13.6
4.2
4.2
3.8
40
40
37
Mean
13.7
A.l
39
* Multiply by 0.0283 to obtain cu m/sec
CO
CO
** Multiply by 0.305 to obtain meters
-------
TABLE A-5, CONTINUED
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
Mid Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
ft **
Temp
ฐC
Dissolved
Oxvnen
Depth
Ft
Temp
ฐC
D1ssn
Oxva
1 ved
en
mg/1
%Sat
mp/1
*Sat
mg/1
%Sat
T-3
08
0654
to
0655
None
0
2
4
6
8
13.8
13.8
13.9
13.9
13.7
4.0
4.0
4.0
4.0
4.0
38
38
38
38
38
Mean
13.9
4.0
38
T-4
08
0637
to
0640
None
0
2
4
6
8
10
11
13.8
13.8
13.8
13.9
13.9
13.9
13.9
4.4
4.4
4.4
4.4
4.4
4.4
4.4
&Z
42
42
42
42
42
42
Mean
13.9
a.4
42
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-5, CONTINUED
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
M
id Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyiqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Disso
Oxvn
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-5
08
0618
to
0*20
None
0
4
8
12
16
20
160
16.0
15.5
15.5
15.5
15.5
6.8
6.8
6.7
6.7
6.5
6.5
68
68
67
67
65
65
Mean
15.6
6.6
66
T-6
08
0629
to
0634
None
0
4
8
12
16
20
24
. 28
16
16
16
16
16
16
16
16
6.7
6.7
6.6
6.5
6.5
6.5
6.4
6.4
67
67
66
65
65
65
64
64
Mean
16
6.5
65
* Multiply by 0.0283 to obtain cu m/sec
ID
o
** Multiply by 0.305 to obtain meters
-------
TABLE A-5, CONTINUED
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - MORNING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
id Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissc
Oxvc
1 ved
en
mq/1
95Sat
mn/1
%Sat
mg/1
%Sat
T-7
OB
0647
to
0650
None
0
4
8
12
16
20
1R.5
18
17.5
17
17
17
7.8
7.8
7.2
7.0
7.0
6.8
82
82
75
72
72
Mean
17.5
7.3
76
T-8
08
0703
to
0708
None
0
4
8
12
16
20
24
28.
32
22
22
20
18.5
18
17.5
17.5
17.0
17.0
10.6
10.6
9.1
8.0
7.4
7.2
6.8
6.7
6.6
120
120
99
R5
7R
76
72
69
68
Mean
19
8.1
87
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-6
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
id Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissr
Oxvr
1 ved
en
mq/1
%Sat
mo/1
%Sat
mq/1
%Sat
T-l
OB
1723
to
1725
6050
0
2
4
6
8
14
14
14
14
14
4.0
4.0
4.0
4.2
4.2
38
38
38
40
40
Mean
14
4.1
39
T-2
08
1731
to
1732
6050
0
2
4
6
8
14
14
14
14
14
4.2
4.2
4.2
4.3
4.3
40
40
40
41
41
Mean
14
4.2
40
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters ^
-------
TABLE A-6, CONTINUED
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
id Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
ft **
Temp
ฐC
Dissolved
Oxvnen
Depth
Ft
Temp
ฐC
Disso
Pxvo
1 ved
en
mq/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-3
08
1742
to
1743
6050
0
2
4
6
8
14.2
14.2
14.2
14.2
14.2
4.8
4.8
4.8
4.8
4.8
46
46
46
46
46
Mean
14.2
4.8
46
T-4
08
1754
to
1755
6050
0
4
8
11
14.5
14.5
14.5
14.5
5.2
5.2
5.3
5.3
51
51
52
52
Mean
14.5
5.2
52
* Multiply by 0.0283 to obtain cu m/sec
55
** Multiply by 0.305 to obtain meters
-------
TABLE A-6, CONTINUED
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
i d Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Diss
Oxn
>ol ved
faen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Dissn
Oxvcj
1 ved
en
ma/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-5
08
1857
to
1859
6100
0
4
8
12
16
20
16.0
16.0
16.0
16.0
16.0
15.5
7.0
6.9
6.8
6.7
6.6
6.6
70
69
6R
67
66
66
Mean
15.9
6.7
68
T-6
08
1848
to
1850
6100
0
4
8
12
16
20
24
28
17
17
16.5
16.5
16.5
16.5
16.5
16.5
7.4
7.3
7.1
7.1
7.0
6.9
6.9
6.8
76
75
73
73
72
71
71
68
Mean
16.5
7.0
72
* Multiply by 0.0283 to obtain cu m/sec
Vฃ>
** Multiply by 0.305 to obtain meters
-------
TABLE A-6, CONTINUED
SEPTEMBER 8, 1976 DISSOLVED OXYGEN DATA - EVENING RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
M
i d Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Ulssolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvnen
Depth
Ft
Temp
ฐC
Dissn
Oxva
1 ved
en
ma/1
%Sat
rrni/l
%Sat
mq/1
%Sat
T-7
08
" 1834
to
1836
6050
0
4
8
12
16
20
22
20
18.5
18
17.5
17
8.2
7.8
7.4
7.1
7.0
7.0
93
85
79
75
74
72
Mean
19
7.4
79
T-8
08
1819
to
1823
6050
0
4
8
12
16
20
24
28
32
24
23
20
19
18
18
17.5
17.5
17.5
11.4
11.2
9.2
8.4
7.7
7.4
7.2
7.0
6.9
132
129
100
89
81
78
76
74
73
Mean
19
8.4
92
* Multiply by 0.0283 to obtain cu m/sec
<ฃ>
cn
** Multiply by 0.305 to obtain meters
-------
TABLE A-7
SEPTEMBER 8-9, 1976 Dissolved OXYGEN DATA - 24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
Mid Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Ox.yaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Dissn
Oxvfi
1 ved
en
ma/1
%Sat
mq/1
SSat
mq/1
3ปSat
T-l
NO D
ATA
T-2
08
1945
to
1946
None
0
2
3
15
15
15
7.0
6.fi
6.7
69
67
66
Sub Mean
15
6.ft
67
09
0018
to
0020
None
0
2
14
14
7.2
6.R
69
65
Sub Mean
14
7.0
0736
None
0
2
14
14
5.0
4.9
48
47
Sub Mean
14
S.U
48
1017
to
1018
None
0
2
4
14
14
14
6.2
6.1
5.9
60
59
57
Sub Mean
14
6.1
59
* Multiply by 0.0283 to obtain cu m/sec
~ lO
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
Mi d Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Pxvn
1 ved
en
mq/1
%Sat
mn/1
%Sat
mg/1
%Sat
T-2
(contd)
09
1316
None
0
4
15
15
7.8
8.3
76
81
Sub Mean
15
8.0
78
1357
to
1359
None
0
2
4
16
16
lfi
8.8
8.8
8.8
88
88
88
Sub Mean
16
8.8
88
Mean
15
7.0
68
* Multiply by 0.0283 to obtain cu m/sec
lO
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA - 24-HOUR RUN
Station
Date
Seot.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
id Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyaen '
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Oxvr
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-3
OR
1955
to
1956
None
0
2
4
6
15
15
15
15
6.8
6.7
6.7
6.7
67
66
66
65
Sub Mean
15
6.7
66
09
0102
to
0103
None
0
2
4
15
15
15
5.4
5.3
5.2
53
52
51
Sub Mean
15
5.3
52
0804
None
0
4
8
15
15
15
5.0
5.0
5.2
&s
49
51
Sub Mean
15
5.1
50
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters 00
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
SeDt.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
i d Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxvqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvnen
Depth
Ft
Temp
ฐC
Dissn
Oxvc
1 ved
en
mq/1
%Sat
mq/1
5lปSat
mg/1
%Sat
T-3
(contd)
09
1045
None
0
4
a
15
15
15
5.7
5.4
5.2
59
53
51
Sub Mean
--
15
5.4
b4
1343
None
0
4
8
Ifi
16
16
5.8
5.7
5.6
58
57
56
Sub Mean
--
16
5.7
57
1625
None
0
4
8
18
1ft
18
7.2
7.1
6.9
76
75
73
Sub Mean
18
7.1
75
Mean
15
6.7
66
* Multiply by 0.0283 to obtain cu m/sec
vo
** Multiply by 0.305 to obtain meters ^
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
Mid Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvnen
Depth
Ft
Temp
ฐC
Disso
Oxvcj
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-a
08
2004
to
2006
6100
0
4
ft
12
15.5
15.5
15.0
15.0
7.0
7.0
6.7
6.6
70
70
66
65
Sub Mean
15.2
6.8
68
09
0134
to
0135
None
0
4
8
15.0
15.0
15.0
5.8
5.7
5.5
57
56
54
Sub Mean
15
5.6
56
0B12
to
0814
None
0
4
8 .
12
16
15
15
15
15
15
6.4
6.2
6.0
5.8
5.6
63
61 .
59
57
55
Sub Mean >
15
6.0
59
* Multiply by 0.0283 to obtain cu m/sec
O
** Multiply by 0.305 to obtain meters ฐ
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA - 24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs*
Left Ban
c
Mid Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissr
Oxvc
>1 ved
en
mq/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-4
(contd)
09
1053
to
1054
None
0
4
8
12
16
15
15
15
15
15
5.9
5.7
5.5
5.3
5.1
58
56
54
52
50
Sub Mean
IS
5.5
S4
1351
to
1353
None
0
4
8
12
16
16
16
16
16
16
6.2
6.0
5.8
5.6
5.5
62
60
58
56
55
Sub Mean
16
5.R
5ft
1633
to
1634
None
0
4
8
12
16
17.5
17.5
17.5
17.0
17.0
6.7
6.5
6.2
6.0
5.R
71
68
65
62
60
Sub Mean
17
6.2
65
Mean
16
6.0
60
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA - 24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
id Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Dissr
Oxvr
1 ved
en
mq/1
ซSat
mn/1
%Sat
mq/1
%Sat
T-5
08
2021
to~
2023
6100
0
4
8
12
16
16
16
16
16
16
7.8
7.8
7.6
7.5
7.4
78
78
76
75
74
Sub Mean
16
7.6
76
09
0209
to
0212
None
0
4
8
12
16
16
16
16
16
16
6.5
6.4
6.3
6.3
6.3
65
64
63
63
63
Sub Mean
16
6.3
63
0832
to
0834
None
0
4
8
12
16
20
16
16
16
16
16
16
7.5
7.3
7.2
7.0
6.8
6.6
75
73
72
70
68
66
Sub Mean
16
7.0
70
* Multiply by 0.0283 to obtain cu m/sec
o
** Multiply by 0.305 to obtain meters ^
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA - 24- HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
id Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissr
Oxvr
lived
en
ma/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-5
(contd)
09
1105
to
1107
None
0
4
8
12
16
20
16
16
16
16
16
16
6.9
6.8
6.6
6.5
6.4
6.1
69
68
66
65
64
61
Sub Mean
16
6.5
65
1404
to
1406
None
0
4
8
12
16
20
17.0
17.0
17.0
17.0
16.5
16.5
7.3
7.1
7.0
6.9
6.6
6.4
75
73
72
71
68
66
Sub Mean
16.8
6.8
71
1645
to
1646
None
Sub Mean
0
4
8
12
16
20
17
17
17
17
17
17
7.4
7.2
7.1
6.9
6.8
6.5
7.1
76
74
73
7>
70
67
ft '
Mean
--
fi fi.fl
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters 00
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
id Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Dissr
Oxvr
>1 ved
en
ma/1
SปSat
mq/1
%Sat
mq/1
%Sat
T-6
08
2036
to
2039
6100
0
4
8
12
16
20
24
28
29
16
16
16
16
16
16
16
16
16
7.6
7.5
7.3
7.2
7.0
6.9
6.8
6.7
6.6
76
75
73
72
70
69
68
67
66
!
Sub Mean
16
7.0
70
09
0227
to
0230
None
0
4
8
12
16
20
24
28
16
16
16
16
16
16
16
16
6.1
5.9
5.8
5.8
5.7
5.6
5.6
5.5
61
59
58
58
57
56
56
55
Sub Mean
16
5.7
57
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters ^
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
i d Stream.
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissc
Oxvcj
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-6
(contd)
09
0841
to
0844
None
0
4
8
12
16
20
24
28
16
16
16
16
16
16
16
16
7.1
6.8
6.6
6.5
6.3
6.1
6.0
5.9
71
69
66
65
63
61
60
59
I
Sub Mean
16
6.4
64
1114
to
1116
None
0
4
8
12
16
20
24
28
16
16
16
16
16
16
16
16
6.9
6.7
6.5
6.3
6.1
5.9
5.6
5.4
69
67
65
63
61
59
56
54
Sub Mean
16
6.2
62
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters w
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs*
Left Ban
i d -Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Dissr
Oxvc
>1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
S5Sat
Tr6
(contd)
09
1413
to
1416
None
0
4
8
12
16
20
24
28
17
17
17
17
16.5
16.5
16.5
16.0
7.0
6.7
6.5
6.3
6.0
5.9
5.7
5.5
72
69
68
65
62
61
59
55
Sub Mean
16.5
6.2
64
1654
to
1656
None
0
4
8
12.
16
20
24
28
18
18
17.5
17.5
17.0
17.0
17.0
17.0
7.1
6.9
6.7
6.5
6.2
5.9
5.8
5.6
75
73
71
68
64
61
60
58
Sub Mean
17.5
6.3
66
Mean
16
6.3
64
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA - 24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Bank
M1d Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyaen '
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Oxvci
1 ved
en
mq/1
%Sat
mo/1
%Sat
mq/1
%Sat
T-7
08
2058
to
2100
6100
0
4
8
12
16
21
18
17.5
17
17
8.4
7.5
7.3
7.1
7.0
93
79
77
73
72
Sub Mean
18
7.5
78
09
0303
to
0307
None
0
4
8
12
14
20.5
18.0
17.5
17.0
17.0
7.7
6.5
6.3
6.2
5.8
86
68
66
64
60
Sub Mean
18
6.5
69
0856
to
0859
None
0
4
8
12
16
20
20
20
17.3
17
17
17
8.5
8.2
7.1
6.9
6.8
6.5
92
89
75
71
70
67
Sub Mean
18
7.3
77
* Multiply by 0.0283 to obtain cu m/sec _
O
** Multiply by 0.305 to obtain meters ^
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
1 d Stream
Riqht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxygen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissr
Oxvc
1 ved
en
mq/1
%Sat
mq/1
SSat
mq/1
%Sat
T-7
(contd)
09
1130
to
1132
None
0
4
8
12
16
20
19
19
18
17.5
17
17
7.8
7.6
7.0
6.7
6.3
6.0
83
81
74
70
65
62
Sub Mean
18
6.9
72
1429
to
1430
None
0
4
8
12
16
20
18.5
18.5
18.5
18
18
17.5
7.4
7.2
7.1
6.8
6.6
6.3
79
77
76
72
69
66
i
Sub Mean
18
6.9
73
1709
to
1710
None
Sub Mean
0
4
8
12
16
20
19
19
19
18.5
18
18
7.6
7.5
7.3
6.9
6.7
6.3
81
80
78
73
71
71
Mean
5;8
75
74
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters 00
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
<
N
i d Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Ox^aen 1
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Oxvc
1 ved
en
mq/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-8
08
2118
to
2130
6100
0
4
8
12
16
20
24
28
32
36
40
42
23.5
22.0
"18.5
18.0
18.0
17.5
17.5
17.5
17.5
17.5
17.5
17.5
11.6
11.7
8.7
8.0
"7.3
7.0
6.5
6.3
5.9
5.8
5.7
5.6
136
134
93
84
77
74
68
66
62
61
60
59
Sub Mean
18.5
7.5
81 .
* Multiply by 0.0283 to obtain cu m/sec
o
** Multiply by 0.305 to obtain meters ฐ
-------
TABLE A-7, CONTINUED-
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
*
i d Stream
Right Bank
Depth
Ft
Temp
ฐC
Uissolved
Oxyaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Dissc
nxvci
1 ved
en
mq/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-8
(contd)
09
0347
to
0355
None
0
4
8
12
16
20
24
28
32
35
23.0
22.5
19.5
18.0
18.0
18.0
18.0
17.5
17.5
17.5
9.8
9.8
7.4
6.5
6.2
6.1
6.0
5.9
5.9
5.5
113
113
80
68
65
64
63
62
60
58
Sub Mean
19
6.9
75
Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
i d Stream
Right Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen '
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Disso
Oxvci
1 ved
en
mq/1
*Sat
mn/1
%Sat
mq/1
%Sat
T-8
(contd)
09
0910
to
0914
None
0
4
8
12
16
20
24
28
32
22
22
20
18
18
17.5
17.5
17.0
17.0
10.2
10.2
9.0
7.6
6.9
6.7
6.5
6.4
6.2
116
116
98
80
73
71
68
66
64
Sub Mean
19
7.7
84
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept.
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
id .Stream-
Riqht Bank
Depth
Ft
Temp
ฐC
dissolved
Oxvaen '
Depth
Ft **
Temp
ฐC
Dissolved
Oxvoen
Depth
Ft
Temp
ฐC
Dissc
Oxvc
1 ved
en
mq/1
%Sat
mq/1
%Sat
mq/1
%Sat
T-8
(contd)
09
1143
to
1146.
None
0
4
8
12
16
20
24
28
32
23
23
23
20
19
18
18
18
18
10
10
9.8
7.8
7.0
6.5
6.2
6.0
5.8
115
115
113
85
74
68
65
63
61
Sub Mean
20
7.7
84
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-7, CONTINUED
SEPTEMBER 8-9, 1976 DISSOLVED OXYGEN DATA -24-HOUR RUN
Station
Date
Sept
1976
Time
mil
Power
Generation
cfs *
Left Ban
M
id Stream
R1qht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyaen
Depth
Ft **
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft
Temp
ฐC
Disso
Pxvc
1 ved
en
ma/1
%Sat
mn/1
%Sat
mq/1
%Sat
T-8
(contd)
09
1441
to
1444
None
0
4
8
12
16
20
24
28
32
23
23
21
19
18.5
18.5
18.0
18.0
18.0
10.2'
10.3
8.8
7.6
6.9
6.7
6.4
6.2
6.0
117
117
97
81
73
71
67
65
62
Sub Mean
19.5
7.7
85
1722
to
1725
None
0
4
8
12
16
20
24
28
32
22.5
-22.5
22.0
20.0
18.5
18.5
18.0
18.0
18.0
10.2
10.2
9.5
7.7
6.7
6.3
6.0
5.6
5.3
117
117
108
84
71
67
63
59
56
Sub Mean
20
7.5
82
Mean
19
7.5
81
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE A-8
TABLE ROCK DAM POWER GENERATION RELEASE, cfs*
AUGUST 16-20, 1976
Time
Date,
August
16
17
18
19
20
0100
va w
..
..
0200
--
--
--
0300
--
0400
--
--
--
0500
--
--
0600
--
0700
--
--
0800
--
--
2981
--
0900
2908
1763
1000
--
4439
2908
3085
1100
7160
3053
3019
1200
7160
5598
3746
1300
7232
5961
3820
3515
1400
7160
7343
3673
3735
1500
7232
7197
3746
3588
1600
2349
7232
7415
7546
7593
1700
5360
7160
7270
7346
7323
1800
7489
7160
7270
7346
7177
1900
7342
7232
7270
6464
7103
2000
7709
7160
7270
1469
1538
2100
7269
7232
7415
--
--
2200
4478
7160
7052
2300
5298
3053
--
2400
/
2864
3053
*
Multiply by 0.02832 to obtain cu m/sec. Data supplied
by Corps of Engineers.
No generation.
-------
TABLE A-9
TABLE ROCK DAM POWER GENERATION RELEASE, cfs*
SEPTEMBER 6-10, 1976
Date, September
Time
6
7
8
9
10
0100
0200
--
--
--
0300
--
--
--
--
0400
--
--
0500
--
--
--
--
0600
-
--
--
--
0700
--
--
--
--
--
0800
--
--
--
--
--
0900
--
--
I
1000
...
--
--
--
--
1100
--
1527
3025
--
--
1200
228
6108
3025
--
1300
3041
6108
6050
--
--
1400
3041
6108
6050
ซ
1500
6082
6108
6050
--
--
1600
6082
6032
6050
--
1700
6082
6108
6050
--
--
1800
6082
6108
6050
--
1900
3041
6108
6126
--
2000
6108
--
--
--
2100
--
6108
--
--
--
2200
--
6108
--
2300
--
--
--
2400
--
m *
* Multiply by 0.02832 to obtain cu m/sec. Data supplied
by Corps of Engineers.
No generation.
-------
APPENDIX B
TABLE ROCK RESERVOIR
NUTRIENT, pH, TEMPERATURE,
DO DATA
SEPTEMBER, 1976
-------
117
TABLE B-l
TABLE ROCK RESERVOIR
pH AND NUTRIENT DATA
SEPTEMBER 7, 1976
Distance
Depth
no2no3-n
TKN
NH3-PI
Total
From North
PH
P
Bank Ft *
Ft*
mg/1
mg/1
mg/1
mg/1
50
8
8.3
.02
0.2
0.04
0.10
100
8
8.1
.02
0.2
0.04
0.10
150
10
8.4
.02
0.2
0.04
0.10
200
11
8.3
.02
0.2
0.04
0.10
250
13
8.1
.02
0.2
0.04
0.10
300
19
7.9
.02
0.2
0.04
0.11
350
22
8.0
.02
0.2
0.04
0.10
400
25
8.3
.02
0.2
0.04
- 0.10
450
21
8.4
.02
0.2
0.04
0.10
500
20
8.4
.02
0.2
0.04
0.10
550
21
8.3
.02
0.2
0.04
0.10
600
24
8.2
.02
0.2
0.04
0.10
650
26
8.1
.02
0.2
0.04
0.10
700
31
7.6
.02
0.2
0.04
0.10
750
37
7.5
.02
0.2
0.04
0.10
800
41
7.5
.02
0.2
0.04
0.10
850
42
7.4
.02
0.2
0.04
0.10
900
46
7.5
.02
0.2
0.04
0.10
1000
45
7.5
.02
0.2
0.04
0.14
1050
75
7.2
.14
0.2
0.04
0.10
1100
75
7.5
.14
0.2
0.04
0.10
1150
75
7.4
.16
0.2
0.11
0.10
1200
75
- 7.4
.19
0.2
0.04
0.10
1250
75
7.6
.16
0.2
0.04
0.10
1300
75
7.4
.15
0.2
0.04
0.10
1350
75
7.5
.15
0.2
0.04
0.10
1400
75
7.5
.17
0.2
0.04
0.10
1450
75
7.5
.15
0.2
0.04
0.10
1500
75
7.5
.18
0.2
0.04
0.10
1550
75
7.4
.17
0.2
0.04
0.30
1600
75
7.4
.19
0.2
0.04
0.10
1650
75
7.4
.17
0.2
0.04
0.10
1700
75
7.4
.17
0.2
0.04
0.10
1750
75
7.3
.18
0.2
0.04
0.10
* Multiply by 0.305 to obtain meters
-------
TABLE B-l, CONTINUED
TABLE ROCK RESERVOIR
pH AND NUTRIENT DATA
SEPTEMBER 7, 1976
Distance
Depth
N02N03-N
TKN
NH3-N
Total
From North
pH
P
Bank Ft *
Ft*
mg/1
mg/1
mg/1
mg/1
1800
75
7.5
.16
0.3
0.04
0.10
1850
75
7.4
.17
" 0.4
0.04
0.10
1900
75
7.5
.16
0.3
0.04
0.70
1950
75
7.5
.18
0.4
0.04
0.10
2000
75
7.4
.18
0.4
0.04
0.10
2050
75
7.4
.17
0.2
0.04
0.10
2100
75
7.4
.15
0.2
0.04
0.10
2150
75
7.4
.15
0.2
0.04
0.10
2200
75
7.4
.16
0.2
0.04
0.20
2250
75
7.6
.15
0.2
0.04
0.10
2300
75
7.7
.14
0.2
0.04
0.10
2350
75
7.4
.13
0.2
0.04
0.10
2400
75
7.4
.14
0.2
0.04
0.20
2450
75
7.5
.15
0.2
0.04
0.10
2500
75
7.4
.16
0.2
0.04
0.20
2550
75
7.5
.16
0.2
0.04
0.20
2600
75
8.3
.02
0.2
0.04
0.20
2650
75
7.4
.14
0.2
0.04
0.10
2700
75
8.2
.02
0.2
0.04
0.10
2750
75
7.3
.11
0.2
0.04
0.10
2800
75
7.4
.15
0.2
0.04
0.10
2850
75
7.4
.11
0.2
0.04
0.20
2900
75
7.3
.14
0.2
0.04
0.10
2950
75
7.5
.09
0.2
0.04
0.10
3000
75
7.3
.12
0.2
0.04
0.10
3050
31
7.6
.02
0.2
0.04
0.30
3100
15
8.4
.02
0.2
0.04
0.10
3150
9
7.9
.02
0.2
0.04
0.10
3200
4
8.2
.02
0.2
0.04
0.10
No. of Sample
_ _
63 .
63
63
63
63
Mean
7.6 **
0.10
0.2
0.04
0.10
s
0.07
0.05
0.009
0.09
Min
--
7.2
0.02
0.2
0.04
0.1
Max
--
8.4
0.18
0.4
0.11
0.7
* Multiply by 0.305 to obtain meters
** Based upon average hydrogen ion concentration
-------
119
TABLE B-2
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN CONCENTRATIONS, mg/1
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
50
150
250
350
450 "
550
650
750'
Approximate Time of Measurement,
Hour
0940
0945
0955
1000
1015
1020
1030
1040
0
7.2
7.2
7.3
7.3
7.8
7.3
7.3
7.3
4
7.1
7.2
7.3
7.3
7.6
7.3
-
7.3
8
7.2
7.2
7.3
7.3
7.4
7.3
7.3
12
7.2
7.2
7.3
7.3
7.4
7.3
_ _
7.3
16
6.8
7.1
7.3
7.3
7.4
7.3
_ _
7.3
20
7.0
7.3
7.3
7.2
7.3
_ _
7.3
24
6.9
7.1
7.2
7.2
7.2
7.2
28
6.9
4.4
1.7
1.6
1.2
--
3.0
32
0.2
0.2
0.3
36
0.2
0.2
0.2
- -
40
0.2
0.2
0.1
44
0.2
0.1
48
_
52
--
0.1
56
60
64
0,1
0.1
68
--
72
--
76
0.1
80
84
88
92
96
100
Mean**
7.1
7,1
7.3
7.3
7.4
7.3
7.3
7.3
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
120
TABLE B-2, CONTINUED
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN CONCENTRATIONS, mg/1
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
850
950
1050
1150
1250
1350
1450
1550
Approximate Time of Measurement,
Hour
1050
1055
1105
1110
1115
1120
1130
1135
0
7.0
7.0
7.0
7.0
7.0
7.0
6.9
6.9
4
7.0
7.0
7.0
7.0
7.0
6.9
6.9
8
--
7.1
7.1
7.2
7.0
7.0
12
7.3
7.1
7.2
7.2
7.1
16
--
7.3
7.1
7.2
7.3
7.1
20
7.0
7.2
7.2
7.2
7.0
24
--
1.2
7.1
7.0
7.0
6.9
28
0,5
2.2
0.2
1.8
1.2
2.2
0.5
2.2
32
0.1
0.6
0.2
0.5
0.2
0.5
0.2
0.4
36
0.1
0.2
0.2
0.2
0.2
0.2
0.2-
0.2
40
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
44
--
0.2
--
0.2
0.2
0.2
0.2
0.2
48
0.2
0.1
0.2
0.2'
0.2
0.2
52
0.1
0.2
56
--
0.2
0.2
60
--
64
0.1
--
--
68
0.2
--
72
--
76
0.1
80
--
84
--
--
88
0.1
0.2_
92
96
100
0.1
0.3
Mean**
7.0
7.1
7.1
7.1
7.1
7.1
7.1
7.0
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
121
TABLE B-2, CONTINUED
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN CONCENTRATIONS, mg/1
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
1650
1750
1850
1950
2050
2150
2250
2350
Approximate Time of Measurement,
Hour
1145
1145
1150
1.155
1205
1210
1215
1220
0
6.9
6.8
6.9
b.8
6.8
6.8
6.8
6.8
4
6.9
6.9
6.9
6.9
6.9
6.9
6,9
8
7.0
6.9
7.1
7.0
_
6.9
7.0
7.0
12
7.1
7.
7.1
7.1
_
7.0
7.2
7.0
16
7.1
7
7.1
7.1
ซ.
7.0
7.2
7.1
20
7.1
7.1
7.1
7.0
7.0
7.2
7.1
24
6.9
7.1
6.9
7.0
7.0
7.1
7.0
7.1
28
1.2
2.2
.3
1.7
.6
3; 3
6.3
6.8
32
0.2
.3
.2
.3
.2
.3
.2
.6
36
0.2
.2
.2
.2
.2
.2
.2
.2
40
0.2
.2
.2
.2
.2
.2
.2
.2
44
0.2
.2
.2
.2
.2
.2
.2
.2
48
0.2
.2
.2
.2
.2
.2
.2
.2
52
56
60
.2
64
68
72
76
80
84
88
92
96
100
Mean**
7.0
6.9
7.0
7.0
6.9
7.0
7.0
7.0
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
122
TABLE B-2, CONTINUED
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN CONCENTRATIONS, mg/1
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
2450
2550
2650
2750
2850
2950
3050
3150
Approximate Time of Measurement,
Hour
1220
1225
1230
1235
1240
1250
1255
0
6.8
6.8
6.8
6.8
6.8
--
6.8
6.8
4
6.9
6.8
6.8
6.9
6.8
--
6.8
6.9.
8
7.0
7.0
7.0
7.0
7.0
^
6.9
7.0
12
7.1
7.1
7.1
7.0
7.1
--
7.0
16
7.1
7.1
7.2
7.1
7.2
7.1
20
7.1
7.1
7.2
7.1
7.2
--
7.1
24
6.9
7.1
7.1
7.1
7.0
--
7.1
28
2.2
5.5
2.8
4.5
2.5
2.6
32
0.2
.3
.2
.4
.2
.4
36
.2
.2
.2
.2
.2
"
.4
40
.2
.2
.2
.2
.2
--
.2
44
.2
.2
.2
.2
.2
48
.2
.2
.2
.2
.2
52
.2
56
.2
- -
60
.2
--
64
--
68
72
76
_
80
.1
84
88
92
96'
100
Mean**
7.0
6.8
7.0
7.0
7.0
6.9
7.0
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-- Data Missing
-------
123
TABLE B-3
TABLE ROCK RESERVOIR
TEMPERATURE, ฐC
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
50
150
250
350
450
550
650
750
Approximate Time of Measurement,
Hour
0940
0945
0955
1000
1015
1020
1030
1040
0
26.4
26.2
26.2
26.1
26
26
26
26
4
26.6
26.2
26.2
26.1
26
26
--
26
8
26.6
26.2
26.0
26.1
26
26
--
26
12
25.5
26.2
26.0
26.1
26
26
--
26
16
25.5
26.2
26.0
26
26
26
--
26
20
26.0
26.0
26
26
26
--
26
24
26.0
25.9
25.8
25.2
25.5
--
25.5
28
26.0
24.8
24.1
24
24
24.5
32
22
22
22
--
36
21
20.5
20.5
- _
40
20
20.5
20
--
--
44
19.5
--
19
48
52
56
--
60
64
--
68
72
76
--
80
84
88
92
96
100
Mean**
26.1
26.1
26.0
26.0
25.9
25.9
26
25.9
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
124
TABLE B-3, CONTINUED
TABLE ROCK RESERVOIR
TEMPERATURE, ฐC
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
850
950
1050
1150
1250
1350
1450
1550
Approximate Time of Measurement,
Hour
1050
1055
1105
1110
1115
1120
1130
1135
0
26
26
26
26
26
26
26.5
26
4
--
26
26
26
26
26
26
26
8
26
26
26
26
26
26
26
12
26
26
26
26
26
26
26
16
--
26
26
26
26
26
26
26
20
25.5
25.5
25.5
26
26
26
25.5
24
25.5
25.5
25.5
25.5
25.5
25.5
25.5
28
23.5
24.5
24
24
24
24
23.5
24
32
22
22
22
22
22
22
22
22
36
21
21
21
21
20.5
21
21
20.5
40
20
20
20
20
20
20
20
20
44
19
19.5
19
19.5
19.5*
19.5
19.5
48
--
19
18.5
18.5
18.5
19
19
52
--
--
56
--
--
60
--
--
64
--
"
68
--
72
--
--
--
76
--
80
--
84
- -
88
- ~
--
92
- _
"
96
-
--
100
16
Mean**
- 26
26
26
26
26
26
26
26
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
125
TABLE B-3, "CONTINUED
TABLE ROCK RESERVOIR
TEMPERATURE, ฐC
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
1650
1750
1850
1950
2050
2150
2250
2350
Approximate Time of Measurement,
Hour
1145
1145
1150
1155
1205
1210
1215
1220
0
26.5
26.5
26
26.5
26.5
26.5
26.5
26.5
4
26
26.5
26
26
--
26
26
26
8
26
26
26
26
--
26
26
26
12
26
26
26
26
26
26
26
16
26
26
26
26
26
26
26
20
26
26
26
25.5
26
26
26
24
25.5
25.5
25.5
25.5
25.5
25.5
25.5
26
28
24
24.5
23.5
24.5
23.5
25.5
25
25.5
32
22
22
22
22
22
22
22
22
36
20.5
21
21
22
21
21
21
21
40
20
20
20
20
20
20
20
20
44
19.5
19
19.5
19.5
19.5
19.5-
19.5
19.5
48
19
19
19
19
19
19 1
19
19
52
56
60
64
68
72
76
80
84
88
92
96
100
Mean**
26.
26
26
26
26
26
26
26
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
126
TABLE B-3, CONTINUED
TABLE ROCK RESERVOIR
TEMPERATURE, ฐC
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
2450
2550
2650
2750
2850
2950
3050
3150
Approximate Time of Measurement,
Hour
1220
1225
1230
1235
1240
1250
1255
0
26.5
26.5
26.5
26.5
26.5
--
26.5
26.5
4
26
26.5
26
26
26
26
26
8
26
26
26
26
26
26
26
12
26
26
26
26
26
--
26
16
26
26
26
26
26
26
20
26
26
26
26
25.5
= -
26
24
25.5
25.5
25.5
26
25.5
--
26
28
24
25
24.5
25
24.5
--
24.5
32
22.5
22
22
22.5
22
--
22.5
36
21
20.5
20.5
21
20.5
--
21
40
20
20
20
20
20
--
20.5
44
19.5
19.5
19.5
19.5
19.5
-- .*
48
19
19
19
19
19
--
52
18
--
56
60
18
64
68
72
--
76
80
16.5
--
84
88
- -
92
96
--
100
16
Mean**
26
26
26
26
26
26
26
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-- Data Missing
-------
127
TABLE B-4
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN PERCENT SATURATION
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
50
150
250
350
450
550
650
750
Approximate Time of Measurement,
Hour
0940
0945
0955
1000
1015
1020
1030
1040
0
88
88
89
89
95
89
89
89
4
88
88
89
89
93
89
89
8
. 89
88
89
89
90
89
89
12
88
88
89
89
90
89
89
16
83
87
89
89
90
89
89
20
85
89
89
88
89
--
89
24
84
87
88
86
88
--
88
28
84
512
20
19
14
36
32
2
2
3
_ _
36
2
2
2
40
2
2
1
__
44
1
_ _
- _
48
_ _
52
- _
_ _
56
--
60
--
64
--
68
72
76
--
80
84
88
92
96
100
Mean**
00
86.
89
89
90
89
89
89
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
128
TABLE B-4, CONTINUED
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN PERCENT SATURATION
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
850
950
1050
1150
1250
1350
1450
1550
Approximate Time of Measurement,
Hour
1050
1055
1105
1110
1115
1120
1130
1135
0
85
85
85
85
85
85
85
84
4
85
85
85
85
85
84
84
8
87
87
87
88
87
85
85
12
--
87
89
87
88
87
88
87
16
87
89
87
88
87
89
87
20
87
89
88
88
87
88
85
24
87
85
87
85
87
85
84
28
6
26
14
21
14
26
6
26
32
1
7
2
6
2
6
2
5
36
1
2
2
2
2
2
2
2
40
1
2
2
2
2
2
2
2
44
1
2
--
2
2
2
2
2
48
2
1
2
2
2
2
52
56
--
60
--
--
64
--
--
- -
68
72
- -
76
--
-
80
84
88
92
96
100
3
Mean**
85
86
87
86
87
86
86
85
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
-------
129
TABLE B-4, CONTINUED
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN PERCENT SATURATION
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
1650
1750
1850
1950
2050
2150
2250
2350
Approximate Time of Measurement,
Hour
1145
1145
1150
1155
1205
1210
1215
1220
0
85
84
84
84
84
84
84
84
4
84
85
84
84
--
84
84
84
8
85
84
87
85
--
84
85
85
12
87
85
87
87
--
85
88
85
16
87
85
87
87
85
88
87
20
87
87
87
85
85
88
87
24
84
87
84
85
85
87
85
87
28
14
26
4
2
7
40
75
83
32
2
3
2
3
2
3
2
7
36
2
2
2
2
2
2
2
2
40
2
2
2
2
2
2
2
2
44
2
2
2
2
2
2
2
2
48
2
2
2
2
2
2'
2
2
52
56
60
64
68
72
76
80
84
88
92
96
100
Mean**
86
85
86
85
85
85
85
85
* Multiply by 0.305 to obtain meters-
** Mean down to beginning of thermocline
-------
130
TABLE B-4, CONTINUED
TABLE ROCK RESERVOIR
DISSOLVED OXYGEN PERCENT SATURATION
SEPTEMBER 8, 1976
Depth
Ft *
Distance From North Bank, Ft*
2450
2550
2650
2750
2850
2950
3050
3150
Approximate Time of Measurement,
Hour
1220
1225
1230
1235
1240
1250
1255
0
84
84
84
84
84
_ -
"84
84
4
84
84
83
84
83
83
84
8
85
85
85
85
85
84
85
12
87
87
87
85
87
- _
85
--
16
87
87
88
87
88
87
20
87
87
88
87
88 .
--
87
24
84
87
87
87
85
87
28
26
65
33
54
30
--
31
32
2
3
2
5
2
--
5
36
2
2
2
2
2
--
2
40
2
2
2
2
2
--
2
44
2
2
2
2
2
--
48
2
2
2
2
2
52
2
56
A
60
2
--
64
-
68
72
76
80
84
88
92
""
96
100
~
Mean**
85
83.
86
86
86
85
84
* Multiply by 0.305 to obtain meters
** Mean down to beginning of thermocline
~ .Data Missing
-------
131
APPENDIX C
LAKE TANEYCOMO
BIOLOGICAL DATA
OCTOBER,-1976
-------
TABLE C-l
PERIPHYTON TAXA IDENTIFIED FROM LAKE TANEYCOMO
OCTOBER 16, 1976
Location and Percentage of Sample
Taxa 300' downstream
Hatcher Effluent Trout Creek
Anabaena X X
Lyngbya X
Oscillatoria X X
Phormidium X
Percentage Filamentous Blue Greens 33% 23%
Actinastrum X
Ankistrodesmus X
Chi orel la X
Golenkinia X
Staurastrum X
Percentage Coccoid Green <1% 2%
Cladophora X
Draparnaldia X
Stigeoclonium X X
Percentage Filamentous Greens 13% <1%
Chlaniydomonas X X
Euglena X
Percentage Green Flagellates 1% 9%
Cyclotella X
Melosira X X
Percentage Centric Diatoms 1% 2%
-------
133
TABLE C-l, CONTINUED
Achnanthes
X
X
Cocconeis
X
Cymbella
X
X
Diatoma
X
Gomphonema
X
X
Navicula
X
X
Nitzschia
X
X
Synedra
X
Percentage Pennate Diatoms
52%
64%
Total number of Taxa
15
19
-------
134
TABLE C-2
PHYTOPLANKTON IDENTIFIED FROM LAKE TANEYCOMO
300 FEET DOWNSTREAM FROM HATCHERY EFFLUENT
OCTOBER 16, 1976
Anabaena
"847
Phormidium
77
Total & Percentage Filamentous Blue Greens
924
39%
Chlamydomonas
847
Total & Percentage Green Flagellates
847
35%
Cyclotella
154
Melosira
154
Total & Percentage Centric Diatoms
308
13%
Diatoma
77
Gomphonema
154
Navicula
77
Total & Percentage Pennate Diatoms
308
13%
Total number of Organisms
2,387
* i
100%
Total number of Taxa
8
-------
135
TABLE C-3
MACROINVETERBRATES IDENTIFIED FROM LAKE TANEYCOMO
300 FEET DOWNSTREAM FROM HATCHERY EFFLUENT
OCTOBER 16, 1976
Number Percentage
Cricotopus sp. 235 31 %
Orthocladius sp. 75 10$
Total & Percentage Diptera 310 41%
Gammarus sp 396 53%
Total & Percentage Crustacea 396_ 53%
Aelosoma sp 12
Total & Percentage Oligochaeta 12_ _2_
Hydra sp 14 2
Total & Percentage Coelenterata 1_4 _2
Turbellaria 15 2
Total & Percentage Turbellaria 15_ _2
Total number of Organisms 747 100%
Total number of Taxa 6
Shannon-Weaver Diversity Indices 1.66
Equitability Factor 0.67
-------
136
APPENDIX D
LAKE TANEYCOMO
DO AND FLOW RATE DATA
JANUARY, 1977
-------
TABLE D-l
January 7, 1977 Dissolved Oxygen Data
Station
Date
Jan 7
1977
T ime
mi 1
Power
Generation
cfs*
Left Bank
Mid-Stream
Riqht Bank
Depth
Ft.
Temp
ฐC
Dissolved
Oxygen
Depth
Ft**
Temp
ฐC
Disso
Oxyq
1 ved
en
Depth
Ft
Temp
nC
Dissolved
Oxygen
mq/1
%Sat
mg/q
% Sat
mg/i
% Sat
T-l
0923
to
0928
14,220
0
5
10
8
8
8
9.6
9.6
9.6
81
81
81
Mean
8
9.6
81
T-2
0934
to
0940
14,220
0
5
10
13
8
8
8
8
9.7
9.6
9.7
9.7
82
81
82
82
Mean
8
9.7
82 '
T-3
0949
to
0954
14,220
0
5
10
12
8
8
8
8
9.8
9.8
9.8
9.8
82
82
82
82
Me an
8
9.8
82
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
CO
-------
TABLE D-l, CONTINUED
January 7, 1977 Dissolved Oxygen Data
Station
Data
Jan 7
1977
Time
mi 1
Power
Generation
cfs*
.eft Bank
Mid Stream
Riaht Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxvaen
Depth
Ft**
Temp
ฐC
Uisso Ived
Oxygen
Depth
Ft
Temp
OC
Dissolved
Oxvaen
mg/l
% Sat
mq/1
% Sat
mg/l
% Sat
T-4
1005
to
1007
13,680
0
5
10
15
17
8
8
8
8
8
CO 00 00 00 CO
0"ป crป crป
82
82
82
82
82
Mean
--
8
9.8
82
T-5
1026
to
1028
13,680
0
5
10
15
19
9
8
8
8
8
10.1
10.0
10.0
10.0
10.0
85
84
84
84
84
Mean
8
10.0
84
* Multiply by 0.0283 to obtain cu m/sec
k* Multiply by 0.305 to obtain meters ^
00
-------
TABLE D-l, CONTINUED
January 7, 1977 Dissolved Oxygen Date
Station
Date
Jan 7
1977
Time
mi 1
Power
Generation
cfs*
Left Bank
Mid Str
Bam
Rinht. Bank
Depth
Ft
Temp
ฐC
Dissolved
Oxyqen
Depth
Ft**
Temp
ฐC
Disso
Oxvq
lved
en
Depth
Ft
Temp
OC
Disso
Oxvg
1 ved
en
mq/1
% Sat
mq/1
% Sat
mq/1
% Sat
T-6
1039
to
1041
13,680
0
5
10
15
20
25
30
35
cocooo cooooocooo
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
cocooooocoooooco
Mean
--
8
10.0
84
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE D-l, CONTINUED
January 7, 1977 Dissolved Oxygen Data
Station
Date
Jan 7
1977
Time
mi 1
Power
Generation
cfs*
Depth
Ft
Temp
oc
Disso
Ox vg
lved
pn
Depth
Ft**
Tgmp
Disso
Oxvc
lved
en
Depth
Ft
Temp
OC
Disso
Oxya
lved
en
mq/1
% Sat
mq/1
% Sat
mq/1
% Sat
T-7
1150
to
1152
11,090
0
5
10
15
20
8.5
8.5
8.5
8.5
8.5
9.8
9.6
9.6
9.7
9.8
83
82
82
83
83
Mean
8.5
9.7
83
T-8
1212
to
1215
8,570
0
5
10
15
20
25
30
35
38
8
8
8
8
7.5
7.5
7.5
7.5
7.5
10.0
9.9
9.9
9.8
9.8
9.8
9.8
9.8
9.5
84
83
83
82
83
83
83
83
81
Mean
--
7.7
9.8
83
* Multiply by 0.0283 to obtain cu m/sec
** Multiply by 0.305 to obtain meters
-------
TABLE D-2
TABLE ROCK DAM POWER GENERATION RELEASE
January 7, 1977
Time
Flow Rate, cfs*
0600
3270
0700
6800
0800
13740
0900
14220
1000
13680
1100
11090
1200
8570
1300
6806
1400
6800
1500
6060
1600
5440
1700
5580
1800
7490
1900
9530
2000
9460
2100
6060
2200
3400
2300
0
2400
0
* Data supplied by Corps of Engineers, Multiply by 0.0283 to
obtain cu m/sec.
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Supplement to "Report of Investigation-Lake Taney-
subjecT: Como Dissolved Oxygen Study", US EPA, Region VII, date: February 16, 1977
Surveillance and Analysis Division, January 14, 1977
from: Robert L. Markey
Director, Surveillance and^rtalysis Division, Region VII
TO: Mr. Arlein T. Wicks
Director, Office of Intermedia Programs, Region VII
This memorandum reports the results of field investigation activ-
ities conducted at Lake Taneycomo which were not available in
time for inclusion in the subject report. This information in-
cludes the analytical data resulting from samples collected for
pH and nutrient analysis at station T-l on January 7, 1977. Also
included is a description and resulting data of field work con-
ducted during January 15, 1977.
This information tends to confirm our previous findings and does
not significantly impact the subject report. We shall leave it
up to you to make distribution of this report to other involved
agencies.
January 7, 1977
The pH and nutrient data resulting from the January 7, 1977 sampling
effort may be found in Table 1.
January 15. 1977
On January 15, 1977, a follow-up to the October 23, 1976, Lake
Taneycomo investigation was completed by Mr. Thomas Lorenz, Mr.
Charles Hensley and Mr. Roy Crossland. Dissolved Oxygen (DO)
levels were measured in the upstream 2 miles (3 kilometers) of
the lake and found to be greater than 10 mg/1 (in excess of 80
percent saturation). The data resulting from this DO monitoring
is presented graphically in Figure 1.
Only two dead trout were observed between the powerhouse and the
state maintained launching ramp. Both were in the 9 to 10 inch
(23-to 25-centimeter) range. No conclusions were drawn from this
data because of the scarcity of fisherman in the upstream area.
EPA Form 1320-6 (Rev. 6-72)
-------
-2-
The light-dark bottle test was repeated to get data on oxygen
production and consumption by the periphytic and planktonic
communities.
The results indicated that, under the prevailing conditions,
the periphytic community was a very active oxygen producer in
the light and a very active oxygen consumer in the dark. In
the light, the periphytic material super saturated the water
around it. In the dark, the periphytic material stripped out
8.6 mg/1 DO in four hours. The containers with plain lake water
in them did not change either in the light or dark. These results
indicated that the differences in the DO levels of the bottles
containing periphytic material were due entirely to the peri-
phytic material. The results are presented below:
Time Periphyton DO mg/1 Phytoplankton DO mg/1
Light Dark Light Dark
1200 hours 16.4 15.8 10.2 10.1
1617 hours 17.0 7.2 10.2 10.1
In addition to the preceeding data, two saturometer readings
were taken in the upstream reaches of Lake Taneycomo. One reading
was taken in the powerhouse stilling basin of Table Rock Dam
and the other reading was taken about 600 yards (550 meters)
downstream from the powerhouse. The resulting data are presented
below:
% Saturation % Saturation % Saturation
Total Gases Nitrogen Argon Oxygen
In powerhouse
Stilling Basin 97.5% 101% 81.2%
600 yds. down-
stream of power-
house 98.6% 101% 85.3%
These saturation data did not indicate any apparent cause for
concern with fish gas bubble disease.
-------
10
3"
1--
Lake Mileaqe
Taneycomo Station Numbers
Fiqure 1- Dissolved Oxyaen Levels in Upper Reaches of Lake
Taneycomo January 15, 1977
-------
TABLE I
NUTRIENT AND pH LEVELS AT STATION T-l
JANUARY 7, 1977
Left Bank*
Mid
-Stream
Rig
ht Bank
k
Time
mi 1
Verti cal
location
PH
N02
no3 +
mq/1
TKN
mq/1
NH3-N
mq/1
Total
P
mq/1
pH
N02-
NO3+
mq/1
TKN
mq/1
nh3-
N
ma/1
Total
P
mq/1
pH
NO?-
N0.+
mq/1
TKN
mq/1
nh3-
N
mq/1
Total
P
mq/1
1455
to
1510
Surface
Mid-Depth
8.1
8.0
0.12
0.12
0.4
0.2
0.05
0.06
<0.2
<0.2
8.3
8.3
"0.12
0.12
0.2
1.0
0.09
<0.02
<0.2
<0.2
7.9
7.7
0.13
0.12
1.0
0.8
0.03
0.04
<0.2
<0.2
Bottom
8.0
0.12
0.5
0.5
<0.2
8.2
0.12
0.9
<0.02
<0.2
7.8
0.12
0.4
0.02
<0.2
Mean **
8.0
0.12
0.3
0.5
<0.2
8.3
0. 12
0.7
<0.04
<0.2
7.8
0.12
0.7
0.03
<0.2
ing Downstream
,n pH levels are based upon averaged hydrogen ion concentrations
ite plus Nitrate Nitrogen as Nitrogen
------- |