U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
i
ON
LAKE BRQHNWOCD
BROWN COUNTY
TEXAS
EPA REGION VI
WORKING PAPER No, 635
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
-------
REPORT
ON
LAKE BUCHANAN
BURNET AND LLANO COUNTIES
TEXAS
EPA REGION VI
WDRKING PAPER No, 636
WITH THE COOPERATION OF THE
TEXAS WATER QUALITY BOARD
AND THE
TEXAS NATIONAL GUARD
FEBRUARY, 1977
-------
CONTENTS
Page
Foreward ii
List of Texas Study Reservoirs iv
Lake and Drainage Area Map vi
Sections
I. Conclusions 1
T[. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 4
IV. Nutrient Loadings 10
V. Literature Reviewed 14
VI. Appendices 15
-------
11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the .
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)j, water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGEMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Texas Water Quality Board
for professional involvement, to the Texas National Guard for
conducting the tributary sampling phase of the Survey, and to
those Texas wastewater treatment plant operators who voluntarily
provided effluent samples.
Hugh C. Yantis, Jr., Executive Director of the Texas Water
Quality Board, and John B. Latchford, Jr., Director, and the staff
of the Field Operations Division provided invaluable lake documen-
tation and counsel during the Survey, reviewed the preliminary
reports, and provided critiques most useful in the preparation of
this Working Paper series.
Major General Thomas Bishop, the Adjutant General of Texas,
and Project Officer Colonel William L. Seals, who directed the
volunteer efforts of the Texas National Guardsmen, are also grate-
fully acknowledged for their assistance to the Survey.
-------
iv
NATIONAL EUTROPHICATION SURVEY
STUDY RESERVOIRS
State of Texas
NAME
Amistad
Bastrop
Bel ton
Braum'g
Brownwood
Buchanan
Caddo
t
Calaveras
Canyon
Colorado City
Corpus Christi
Diversion
Eagle Mountain
Fort Phantom Hill
Houston
Kemp
Lake 0'The Pines
Lavon
Lewisvilie (Garza-Little Elm)
Livingston
COUNTY
Val Verde
Bastrop
Bell, Coryell
Bexar
Brown
Burnet, Llano
Harrison, Marion, TX;
Caddo Parish, LA
Bexar
Comal
Mitchell
Jim Wells, Live Oak, San
Patricio
Archer, Baylor
Tarrant, Wise
Jones
Harris
Baylor
Camp, Marion, Morris,
Upshur
Coll in
Denton
Polk, San Jacinto, Trinity,
Walker
-------
Lyndon B. Johnson
Medina
Meredith
0. C. Fisher (San Angelo)
Palestine
Possum Kingdom
Sam Rayburn
Somervilie
E. V. Spence
Stamford
Still house Hollow
Tawakoni
Texoma
Travis
Trinidad
Twin Buttes
White River
Whitney
Wright Patman (Texarkana)
Burnet, Llano
Bandera, Medina
Hutchinson, Moore,
Potter
Tom Green
Anderson, Cherokee,
Henderson, Smith
Palo Pinto, Stephens,
Young
Angelina, Jasper
Nacogdoches, Sabine, San
Augustine,
Burleson, Lee, Washington
Coke
Haskell
Bell
Hunt, Rains, Van Zandt
Cooke, Grayson TX; Bryan,
Johnston, Love, Marshall, OK
Burnet, Travis
Henderson
Tom Green
Crosby
Bosque, Hill
Bowie, Cass
-------
Map Location
k ' I i 1 ,
tributary Sampling Site
X Lake Sampling Site
-------
LAKE BUCHANAN
STORE! NO. 4806
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake Bucha an is eutrophic; i.e.,
well supplied with nutrients and quite productive. Whether
nutrient enrichment is beneficial or deleterious depends on the
actual or potential effect on the uses of the lake. In this
regard, no nuisance conditions are known to personnel of the Texas;
Water Quality Board and there is little or no impairment of the
designated beneficial uses of this lake.
Lake Buchanan ranked twenty-fifth in overall trophic quality
when the 39 Texas reservoirs sampled in 1974 were compared using a
combination of six parameters*. Nineteen of the water bodies had
less and one had the same median total phoshorus, 22 had less and
two had the same median dissolved phosphorus, 29 had less and two
had the same median inorganic nitrogen, 14 had less mean chloro-
phyll a^, and ten had greater mean Secchi disc transparency.
Hypolimnetic dissolved oxygen was depleted at station 1 in May
and August and at station 2 in August; marked depression of
dissolved oxygen occurred at station 3 in May and August.
Survey limnologists noted macrophytes in the shoreline shallows
near stations 1, 2, and 3.
See Appendix A.
-------
B. Rate-Limiting Nutrient:
The algal assay results indicate Lake Buchanan was phos-
phorus-limited at the times the assay samples were collected
(03/14/74 and 11/04/74).
The lake data indicate phosphorus limitation at all
sampling stations and times.
C. Nutrient Controllability:
1. Point sources—It is estimated that point sources,
including septic tanks, contributed less than 1% of the total
phosphorus load to the lake.
During the sampling year, Lake Buchanan received a total
phosphorus loading almost twice that proposed by Vollenweider
(Vollenweider and Dillon, 1974) as a eutrophic loading (see
page 13). However, even if Vollenweider's eutrophic level
is applicable to Texas reservoirs, it does not seem likely
that elimination of the point-source phosphorus would result
in significant improvement in the trophic condition of the
lake.
2. Non-point sources—It is calculated that non-point
sources contributed essentially all of the phosphorus input
to the lake during the sampling year with the Colorado River
providing about 95% of the total load.
The phosphorus export rates of the tributaries of Lake
Buchanan were quite low during the sampling year (see page
12) and compare well with the exports of the tributaries of
downstream Lake Lyndon B. Johnson* (range of <1 to 2 kg/km2/yr),
Working Paper No. 645.
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphometry :
1. Surface area: 93.32 kilometers2.
2. Mean depth: 13.1 meters.
3. Maximum depth: 40.2 meters.
4. Volume: 1,222.492 x 106 m3.
5. Mean hydraulic retention time: 1.7 years (based on outflow).
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Colorado River 79,603.6 22.890
Calvert Creek 7.3 0.015
Fall Creek 132.1 0.289
Cherokee Creek 461.0 1.060
N. Fork Morgan Creek 46.6 0.099
Minor tributaries &
immediate drainage - 593.5 2.660
Totals 80,844.1 27.013
2. Outlet -
Colorado River 80,937.4** 23.070**
C. Precipitation***:
1. Year of sampling: 98.2 centimeters.
2. Mean annual: 75.7 centimeters.
t Table of metric conversions—Appendix B.
tt Latchford, 1974.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake; lesser outflow due to evaporation (Yost, 1976).
*** See Working Paper No. 175.
-------
III. LAKE WATER QUALITY SUMMARY
Lake Buchanan was sampled four times during the open-water season
of 1974 by means of a pontoon-equipped Huey helicopter. Each time,
samples for physical and chemical parameters were collected from
four stations on the lake and from two or more depths at each station
(see map, page vi). During each visit, a single depth-integrated
(4.6 m or near bottom to surface) sample was composited from the
stations for phytoplankton identification and enumeration; and during
the first and last visits, a single 18.9-liter depth-integrated sample
was composited for algal assays. Also each time, a depth-integrated
sample was collected from each of the stations for chlorophyll a^
analysis. The maximum depths sampled were 30.8 meters at station 1,
19.5 meters at station 2, 15.8 meters at station 3, and 3.7 meters
at station 4.
The sampling results are presented in full in Appendix D and
are summarized in the following table (the August nutrient samples
were not preserved properly and were not analyzed).
-------
A. SUMMARY OF PHYSICAL AND CHEMICAL CHARACTERISTICS FOR LAKE BUCHANAN
STORET CODE 4806
PARAMETER
TEMP
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/D
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
1ST SAMPLING ( 3/14/74)
4 SITES
RANGE
11.3 - 19.8
5.6 - 10.2
521. - 872.
8.0 - 8.5
140. - 203.
0.013 - 0.046
0.003 - 0.022
0.160 - 0.240
0.020 - 0.160
0.300 - 0.800
0.180 - 0.370
0.460 - 0.990
6.2 - 8.4
0.4 - 2.1
2ND SAMPLING ( 5/21/74)
4 SITES
3RD SAMPLING ( 8/16/74)
4 SITES
MEAN
16.3
8.7
631.
8.3
151.
0.020
0.009
0.193
0.046
0.444
0.239
0.638
6.9
1.4
'MEDIAN
16.7
9.0
591.
8.4
145.
o.oia
0.009
0.185
0.030
0.400
0.215
0.605
6.5
1.5
RANGE
14.6
0.0
597.
7.5
140.
0.015
0.008
0.060
0.040
0.200
0.100
0.280
7.0
0.3
- 26.8
8.0
- 810.
8.6
- 151.
- 0.181
- 0.032
- 0.360
- 0.230
- 1.100
- 0.510
- 1.400
- 10.3
2.9
MEAN
23.3
4.3
720.
8.2
145.
0.052
0.013
0.178
0.073
0.482
0.251
0.660
9.2
1.6
MEDIAN
24.2
5.3
712.
8.3
146.
0.040
0.011
0.160
0.050
0.400
0.215
0.550
9.8
1.6
RANGE MEAN MEDIAN
16.5 - 29.7 25.6 26.8
0.0 - 7.8 4.4 4.6
625. - 896. 751. 769.
7.5 - 8.7 8.2 8.3
...0.0 -..000...00.00..00..000
00.0.0 _0.....0...0..0..0.....
0.0000 -.00000.000.000000.00.0
...000 -0000.0.0000000000000.0
.00000 -0.00.0000.0.0000.0000.
0«00«* -««0««00. 000. .0.000. ...
«.000. -00.00000000..000,>0.000
.0.000 .000000.00.0.....* .0000
4.5 - 24.9 11.0 7.4
0.4 - 4.3 2.6 2.9
-------
A. SUMMARY OF PHYSICAL AND CHEMICAL CHARACTER1CTICS FOR LAKE BUCHANAN
STORE! CODE 4306
4TH SAMPLING
OISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/D
ORTHO P (MG/D
N02+N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UR/L)
SECCHI (METERS)
RANGE
19.5 - 20.7
6.2 - 8.0
523. - 595.
7.7 - 8.1
109. - 129.
0.031 - 0.172
0.011 - 0.059
0.210 - 0.490
0.020 - 0.100
0.200 - 1.000
0.230 - 0.590
0.410 - 1.480
2.3 - 16.5
0.2 - 1.5
SITES
. MEAN
20. H
7.C
554.
8.0
125.
0.077
0.022
0.293
0.047
0.348
0.345
0.646
7.2
0.8
MEDIAN
20.5
7.0
551.
8.0
127.
0.050
0.016
0.240
0.040
0.300
0.280
0.530
5.0
0.7
-------
B. Biological characteristics:
1. Phytoplankton* -
Sampling
Date
03/14/74
05/21/74
11/04/74
Dominant
Genera
1. Chroomonas sp_.
2. Scenedesmus sp...
3. Nitzscnia sp.
4. Centric diatoms
5. Cryptomonas sp.
Other genera
Total
1. Tetraedron sp_.
2. Scenedesmus sp.
° Chroomonas sp.
Cryptomo'na's sp.
Nitzschia sp.
Other genera
Total
1. Flagellates
2. Stephanodiscus sp.
Ankistrodesmus sp.
Cryptomonas sp.
Scenedesmus sp.
Other genera
Total
Algal Units
per ml
1,482
1,284
889
840
543
1,928
6,966
2,050
990
186
124
124
124
493
2,041
The August phytoplankton sample was lost in shipment
-------
8
2. Chlorophyll
Sampling
Date
03/14/74
05/21/74
08/16/74
11/04/74
Station
Number
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
a. March sample -
Spike (mg/1)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
Ortho P
Cone, (mg/1)
<0.005
<0.055
<0.055
<0.005
b. November sample -
Spike (mg/1)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
Ortho P
Cone, (mg/1)
0.010
0.060
0.060
0.010
Inorganic N
Cone, (mg/1)
0.280
0.280
1.280
1.280
Inorganic N
Cone, (mg/1)
0.366
0.366
1.366
1.366
Chlorophyll a
(yg/D
6.4
6.2
6.6
8.4
9.9
10.3
7.0
9.8
4.5
6.0
8.8
24.9
2.3
6.4
16.5
3.7
Maximum yield
(mg/1-dry wt.)
0.1
6.2
15.5
0.1
Maximum yield
(mg/1-dry wt.)
2.7
8.0
17.6
2.7
-------
2. Discussion -
The control yields of the assay alga, Selenastrum capri-
cornutum, indicate that the potential primary productivity
of Lake Buchanan was low in March but moderately high in
November. The results also indicate that Lake Buchanan was
phosphorus limited both times. Note that the addition of
orthophosphorus alone or in combination with nitrogen resulted
1n significantly increased yields, but the addition of
nitrogen alone did not.
The lake data also indicate phosphorus limitation at
all sampling times; i.e., the mean inorganic nitrogen/ortho-
phosphorus ratios were 16/1 or greater at all sampling stations
and times.
-------
10
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Texas National
Guard collected monthly near-surface grab samples from each of the
tributary sites indicated on the map (page vi), except for the high
runoff months of April and May when two samples were collected.
Sampling was begun in September, 1974, and was completed in August,
1975,
Through an interagency agreement, stream flow estimates for,the
year of sampling and a "normalized" or average year were provided by
the Texas District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads shown are
those measured minus point-source loads, if any.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("II" of U.S.G.S.) were estimated using the means of the
nutrient loads, in kg/km2/year, at stations A-2, B-l, C-l, D-l, and
E-l and multiplying the means by the II area in km2.
The operator of the Silver Creek Lodge wastewater treatment plant
did not participate, and nutrient loads were estimated at 1.134 P
and 3.401 kg N/capita/year.
* See Working Paper No. 175.
-------
11
Pop.
Served
30
Treatment
aer. pkg.
plant
Mean Flow
(mVd)
15.1
Receiving
Water
Lake Buchanan
% of
total
87,320
5
120
1,565
35
95.1
<0.1
0.1
1.7
<0.1
A. Waste Sources*:
1. Known municipal -
Name
Silver Creek
Lodge
2. Known industrial - None
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/
Source yr
a. Tributaries (non-point load) -
Colorado River
Calvert Creek
Fall Creek
Cherokee Creek
N. Fork Morgan Creek
b. Minor tributaries & immediate
drainage (non-point load) - 830
c. Known municipal STP's -
Silver Creek Lodge 35
d. Septic tanks** - 325
e. Known industrial - None
f. Direct precipitation***-- 1,635
Total 91,870
2. Outputs -
Lake outlet - Colorado River 15,995
3. Net annual P accumulation - 75,875 kg.
* Andrews, 1976; Wyatt, 1976.
** Estimate based on 1,143 lakeshore dwellings; see Working Paper No. 175.
*** See Working Paper No. 175.
0.9
0.4
1.8
100.0
-------
12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Colorado River 1,431,660 89.7
Calvert Creek 95 <0.1
Fall Creek 4,705 0.3
Cherokee Creek 23,930 1.5
N. Fork Morgan Creek 2,405 0.1
b. Minor tributaries & immediate
drainage (non-point load) - 20,300 1.3
c. Known municipal STP's -
Silver Creek Lodge 100 <0.1
d. Septic tanks* - 12,180 0.8
e. Known industrial - None
f. Direct precipitation** - 100,750 6.3
Total 1,596,125 100.0
2. Outputs -
Lake outlet - Colorado River 660,840
3. Net annual N accumulation - 935,285 kg.
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Colorado River 1 18
Calvert Creek <1 13
Fall Creek <1 36
Cherokee Creek 3 52
N. Fork Morgan Creek <1 52
* Estimate based on 1,143 lakeshore dwellings; see Working Paper No. 175.
** See Working Paper No. 175.
-------
13
E. Mean Nutrient Concentrations in Ungaged Stream:
Mean Total P Mean Total N
Tributary Cone, (mg/1) Cone, (mg/1)
S. Fork Morgan Creek 0.011 1.107
F. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated' Total Accumulated
grams/m2/yr 0.98 0.81 17.1 10.0
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake Buchanan:
"Dangerous" (eutrophic loading) 0.54
"Permissible" (oligotrophic loading) 0.27
-------
14
V. LITERATURE REVIEWED
Andrews, Leslie (owner), 1976. Personal communication (location of
Silver Creek Lodge and type of wastewater treatment). Silver
Creek Lodge, Burnet, TX.
Latchford, John B., Jr., 1974. Personal communication (lake mor-
phometry). TX Water Qua!. Bd., Austin.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Pub!. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
Wyatt, Linda B., 1976. Personal communication (nutrient point sources
impacting Lake Buchanan). TX Water Qual. Bd., Austin.
Yost, I. D., 1976. Personal communication (total inflows and outflows
of Lake Buchanan). U.S. Geol. Surv., Austin.
-------
VI. APPENDICES
15
APPENDIX A
LAKE RANKINGS
-------
LAKt DA. A TO BE USED IN
LAKE
CODE LAKE NAME
4601 AMISTAD LAKE
4802 BASTROP LAKE
4803 8ELTON RESERVOIR
4804 BHAUNIG LAKE
4805 BROWNWOOD LAKE
4806 LAKE BUCHANAN
4807 CAOOO LAKE
4808 CALAVERAS LAKE
4809 CANYON RESERVOIR
4810 LAKE COLORADO CITY
4811 CORPUS CRISTI LAKE
4812 DIVERSION LAKE
4813 EAGLE MOUNTAIN LAKE
4814 FT PHANTOM HILL LAKE
4815 GARZA LITTLE ELM RESERVO
4816 KEMP LAKE,
4817 HOUSTON LAKE
4818 LAKE OF THE PINES
4819 LAVON RESERVOIR
4830 LIVINGSTON LAKE
4821 LYNDON B JOHNSON LAKE
4822 MEDINA LAKE
4823 LAKE MEREDITH
4824 PALESTINE LAKE
4825 POSSUM KINGDOM RESERVOIR
4826 SAN ANGELO RESERVOIR
4827 SAM RAYBURN RESERVOIR
4828 E V SPENCE RESERVOIR
MEDIAN
TOTAL P
0.013
0.02?
0.016
0.134
0.027
0.036
0.055
0.038
0.010
0.042
0.113
0.025
0.024
0.060
0.045
0.023
0.097
0.031
0.063
0.196
0.042
0.010
0.021
0.031
0.023
0.098
0.029
0.036
MEDIAN
INO.^O N
0.500
0.090
0.185
0.150
0.100
0.250
0.070
0.060
0.450
0.090
0.130
0.080
0.070
0.105
0.380
0.110
0.260
0.090
0.180
0.555
0.420
0.600
0.070
0.180
0.070
0.140
0.150
0.080 .
500-
MEAN SEC
371.474
419.917
378.312
461.625
470.375
437.625
463.333
461.667
384.812
473.625
475.187
470.111
469.625
474.909
475.782
455.000
486.187
440.000
485.333
465.469
456.500
403.562
439.312
442.625
419.045
481.000
439.458
462.583
MEAN
CHLORA
2.^42
12.392
8.025
22.762
4.887
8.606
14.808
22.500
2.500
12.675
19.756
15.867
5.662
6.317
14.156
10.217
16.650
12.919
5.400
16.112
8.100
12.944
3.037
10.619
9.495
24.675
6.267
11.775
15-
MIN oo
14.900
15.000
15.000
14.800
14.400
15.000
11.400
13.000
14.800
10.200
14.000
9.000
11.000
9.800
14.600
10.400
12.400
15.000
8.800
15.000
14.900
15.000
14.^00
14.800
15.000
10.200
15.000
15.000
MEDIAN
DISS OUTHO P
0.009
0.007
0.007
0.062
0.007
0.012
O.OlJ
0.007
0.006
0.012
0.050
0.009
0.008
0.022
0.018
' 0.007
0.036
0.011
0.018
0.126
0.013
0.004
0.009
0.010
0.009
0.011
0.009
0.008
-------
LAKE DATA TO BE USED IN BANKINGS
LAKE
CODE LAKE NAME
4829 SOMERVILLE LAK.E
4830 STAMFORD LAKE
4831 STILLHOUSE HOLLOW RESEHV
4832 TAWAKONI LAKE
4833 TEXARKANA LAKE
4834 TEXOHA LAKE
4835 TRAVIS LAKE
4836 TRINIDAD
4837 TWIN BUTTES RESERVOIR
4838 WHITE RIVER RESERVOIR
4839 WHITNEY LAKE
MEDIAN
TOTAL P
0.053
0.073
O.Olb
0.046
O.lOb
0.042
0.018
0.389
0.029
0.020
0.028
MEDIAN
1MORG N
0.115
O.C60
0.160
0. 100
0.120
0.160
0.250
0.110
0.250
0.110
0.120
500-
MEAN SEC
473. b33
482.714
406.250
466.417
47U.500
451.321
389.913
479.500
454.917
434. 500
430.500
MtAN
CHLORA
24.--»l
18.457
3.917
18.246
19.119
12.493
5.595
24.300
8.708
4.333
6.912
Ib-
MIN 00
13.000
10.600
15.000
13.200
12.400
15.000
15.000
10.000
14.800
15.000
15.000
MEDIAN
OISS CMTriO P
0.01 3
0.012
0.010
0.013
0.030
0.018
0.007
0.240
0.009
0.009
0.008
-------
PERCENT OF
LAKE
CODE LAKE NAME
*HH
tft VALUES (NUMBER OF LAKLII WITH- H
<»801 AMISTAt) LAKE
4B02 HASTSOO LAKE
4803 8ELTON RESERVOIR
4804 BRAUNIG LAKE
4805 BROWNWOOD LAKE
4806 LAKE BUCHANAN
4807 CADOO LAKE
4808 CALAVERAS LAKE
4809 CANYON RESERVOIR
4810 LAKE COLORADO CITY
4811 CORPUS CRISTI LAKE
4812 DIVERSION LAKE
4813 EAGLE MOUNTAIN LAKE
4814 FT PHANTOM HILL LAKE
4815 GARZA LITTLE ELM RESERVO
4816 KEMP LAKE
4817 HOUSTON LAKE
4818 LAKE OF THE PINES
4819 LAVON RESERVOIR
4830 LIVINGSTON LAKE
4821 LYNDON B JOHNSON LAKE
4822 MEDINA LAKE
4823 LAKE MEREDITH
4824 PALESTINE LAKE
4825 POSSUM KINGDOM RESERVOIR
<»826 SAN ANOELO RESERVOIR
4827 SAM RAYBURN RESERVOIR
4828 E V SPENCE RESERVOIR
MEDIAN
TOTAL P
95
79
92
5
66
47
26
45
99
39
8
68
71
24
34
76
16
54
21
3
39
99
82
54
74
13
59
50
( 36)
( 30)
( 35)
( 2)
( 25)
( 18)
( 10)
( 17)
( 37)
( 14)
( 3)
( 26)
( 27)
( 9)
( 13)
( 29)
( 6)
( 20)
( 8)
( 1)
( 14)
( 37)
( 3D
( 20)
( 28)
( 5)
( 22)
( 19)
MEDIAI
INO^G
5
76
26
42
70
21
91
100
8
76
47
83
91
66
13
61
16
76
29
3
11
0
91
32
91
45
39
83
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
<
(
<
(
(
(
(
(
(
(
(
5 ( 2) 100 ( 38)
76 ( 28) 82 ( 31)
26 ( 10) 97 ( 37)
42 ( 16) 50 ( 19)
70 ( 26) 29 ( 11)
21 (7) 74 ( 28)
91 ( 33) 42 ( 16)
100 < 38) 47 ( 18)
8(3) 95 ( 36)
76 ( 28) 26 ( 10)
47 ( 18) 18 ( 7)
83 ( 31) 32 ( 12)
91 ( 33) 34 ( 13)
66 ( 25) 21 < 8)
13 (5) 16 ( 6)
61 ( 22) 55 < 21)
16 ( 6) 0 ( 0)
76 < 28) 66 ( 25)
29 ( 11) 3 < 1)
3(1) 39 ( 15)
11 (4) 53 ( 20)
0 ( 0) 89 < 34)
91 ( 33) 71 ( 27)
32 ( 12) 63 ( 24)
91 ( 33) 84 ( 32)
45 (17) 8 ( 3)
39 ( 15) 68 ( 26)
83 ( 31) 45 ( 17)
MLAN
SEC CrtLOHA
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
<
<
(
<
(
(
<
(
(
(
(
(
(
38)
31)
37)
19)
11)
28)
16)
18)
36)
10)
7)
12)
13)
8)
6)
21)
0)
25)
1)
15)
20)
34)
27)
24)
32)
3)
26)
17)
lOo
47
68
8
87
63
32
11
97
42
13
29
79
74
34
55
24
39
84
26
66
37
95
53
53
0
76
50
( 38)
( 18)
( 26)
( 3)
( 33)
( 24)
( 12)
( 4)
( 37)
( 16)
( 5)
( 11)
( 30)
( 28)
( 13)
( 21)
< 9)
( 15)
( 32)
( 10)
( 25)
( 14)
( 36)
( 20)
( 22)
( 0)
( 29)
( 19)
16-
MIN UO
39
17
17
49
. 58
17
76
67
49
88
61
97
79
95
55
84
72
17
100
17
39
17
39
49
17
88
17
17
( 14)
( 0)
( 0)
( 17)
( 22)
( 0)
( 29)
( 25)
( 17)
( 33)
( 23)
< 37)
( 30)
( 36)
( 21)
( 32)
( 27)
( 0)
( 38)
( 0)
( 14)
( 0>
( 14)
( 17)
( 0)
( 33)
( 0)
( 0)
MEDIAN
DISS U*THG P
63
92
84
i 5
84
39
30
92
97
39
8
63
76
16
21
92
11
46
21
3
30
100
63
51
63
46
63
76
( 21)
( 34)
( 31)
( 2)
( 31)
( !«,)
( 10)
( 34)
( 37)
( 14)
( 3)
( 21)
( 28)
( 6)
( 7)
( 34)
( 4)
( 17)
( 7)
( 1)
( 10)
( 38)
< 21)
( 19)
( 21)
< 17)
( 21)
( 28)
INDEX
NO
402
393
384
159
39*
261
297
362
445
310
155
372
430
296
173
423
139
298
258
91
238
342
441
302
387
200
322
321
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER or LAKES *ITH HIGHER VALUES)
LAKE
CODE. LAKE NAME
4829 SOMERVILLE LAKE
4830 STAMFORD LAKE
4831 STILLHOUSE HOLLOW REStrtV
4832 TAWAKONI LAKE
4833 TEXARKANA LAKE
4834 TEXOMA LAKE
4635 TRAVIS LAKE
4836 THINIOAD
4837 TWIN BUTTES RESERVOIR
4838 WHITE RIVER RESERVOIR
4839 WHITNEY LAKE
MEDIAN
TOTAL P
29 (
18 (
88 (
32 <
11 (
39 (
88 <
0 (
59 (
84 (
63 <
11)
71
33)
12)
4)
14)
33)
0)
22)
32)
24)
MEDIAN
INORG N
55
97
37
70
51
34
21
61
21
61
51
( 21)
( 37)
( 14)
( 26)
( 19)
< 13)
( 7)
( 22)
( 7)
( 22)
( 19)
500-
MEAN SEC
24
5
87
37
13
61
92
11
58
76
79
( 9)
( 2)
( 33)
( 14)
< 5)
( 23)
( 35)
( 4)
( 22)
( 29)
( 30)
MEAN
CHLORA
3
18
92
21
16
45
82
5
61
89
71
( 1)
( 7)
( 35)
( 8)
( 6)
( 17)
( 3D
( 2)
( 23)
( 34)
( 27)
15-
MIN oo
67
82
17
63
72
17
17
92
49
17
17
( 25)
( 3D
( 0)
( 24)
( 27)
( 0)
( 0)
( 35)
< 17)
( 0)
( 0)
MEDIAN
DISS O^THO f
30 (
39 (
51 (
30 I
13 (
21 (
84 (
0 (
63 (
63 (
76 (
10)
14)
19)
10)
5)
7)
31)
0)
21)
21)
28)
INDEX
NO
20e
259
372
253
176
217
J84
169
311
390
357
-------
I_A*E;> RANKED er
RANK LAKE CODE LAKE NAME INDEX NO
i 4809 CANVON RESERVOIR 445
2 4823 LAKE MEREDITH 441
3 4813 EAGLE MOUNTAIN LAKE 430
4 4816 KEMP LAKE 423
5 4801 AMISTAO LAKE 402
6 4805 3RO*NWOOD LAKE 394
7 4802 BASTRUP LAKE 393
8 4838 WHITE RIVER RESERVOIR 390
9 4825 POSSUM KINGDOM RESERVOIR 387
10 4835 TRAVIS LAKE 384
11 4803 BELTON RESERVOIR 384
12 4831 STILLHOUSE HOLLOW RESERV 372
13 4812 DIVERSION LAKE 372
14 4808 CALAVERAS LAKE 362
15 4839 WHITNEY LAKE 357
16 4822 MEDINA LAKE 342
17 4827 SAM RAYBURN RESERVOIR 322
18 4828 E V SPENCE RESERVOIR 321
19 4837 TWIN 8UTTES RESERVOIR 311
20 4810 LAKE COLORADO CITY 310
21 4824 PALESTINE LAKE 302
22 4818 LAKE OF THE PINES 298
23 4807 CADOO LAKE 297
24 4814 FT PHANTOM HILL LAKE 296
25 480b ' LAKE BUCHANAN 261
26 4830 STAMFORD LAKE 259
27 4819 LAVON. RESERVOIR 258
38 4832 TAWAKOM LAKE 253
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
29 4821 LYNDON B JOHNSON LAKE 238
30 4834 TEXOMA LAKE 217
31 4B29 SOMERVILLE LAKE 208
32 4826 SAN ANGELO HESERVOIR 200
33 4833 TEXARKANA LAKE 176
34 4815 GARZA LITTLE ELM RESERVO 173
35 4836 TRINIDAD 169
36 4804 BRAUNIG LAKE 159
37 4811 CORPUS CRISTI LAKE 155
38 4817 HOUSTON LAKE 139
39 4820 LIVINGSTON LAKE 91
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 10"4 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
*
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TAtf,' f-'LOn Ir.'FOHMAT ION KJK ff.'XAb
CODE 4806 3'JCnANAN
TOTAL DRAINAGE AREA OK LAt<,E
-------
TRIBUTARY FLOw INFORMATION FOH
03/16/76
LAKE CODE 48Pb
BUCHANAN
MEAN MONTHLY FLOWS AND OAILf FLOWS(CMb)
TRIBUTARY MONTH YEAR
480661
460bCl
480601
4806EI
9
10
11
12
1
2
3
it
5
6
7
8
9
10
11
\2
\
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
a
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
7b
75
75
75
75
7b
75
MEAN FLOW DAY
0.028
0.057
0.057
0.057
0.057
0.142
0.057
0.142
0.170
0.085
0.057
0.028
0.283
0.708
0.566
0.566
0.708
0.566
0.142
0.425
0.708
0.425
0.368
0.283
0.283
0.566
0.283
0.566
0.708
0.850
0.283
0.850
0.481
0.283
0.227
0.198
0.142
0.263
0.142
0.283
0.283
0.233
0.085
0.142
0.283
0.142
0.113
0.085
7
7
7
7
7
7
7
7
5
7
7
2
7
7
7
7
7
7
7
7
5
7
7
7
7
7
7
7
7
7
7
7
5
7
10
7
7
7
7
7
7
7
7
7
5
7
7
2
FLOW DAY
FLOW GAY
FLU*
0.014
0.028
0.057
0.028
0.057
0.283
0.085
0.057
0.057
0.085
0.057
0.028
0.170
0.340
0.595
0.340
0.566
1.133
0.283
0.283
0.708
0.425
0.425
0.283
0.142
0.283
0.425
0.283
0.566
1.699
0.566
0.566
0.708
0.283
0.283
0.198
0.057
0.113
0.198
0.113
0. 142
0,566
0.142
0.057
0.2SJ
0.142
0.142
0.085
21
19
21
19
21
19
21
19
0.057
0.142
0.227
0.566
0.425
0.425
0.0*37
0.198
-------
FLO*' INFORMATION FOR )'E>.AS 03/16/>'o
LAKE CODE 4806 b'JCriANAN
MEAN MONTHLY FLOrtS ANU uAILY FLOWS(CMS)
TRIBUTARY MONTH YEAH MEAN FLO* DAY FLOW DAY FLOW OAY FLOW
480fcZ2
9
10
11
12
1
2
3
4
5
6
7
8
74
74
74
74
75
75
75
75
75
75
75
75
1.982
1.133
1.416
0.566
0.708
0.283
0.283
0.510
0.991
0.340
0.227
0.113
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
5TORET
ll
480601
30 »5 05.0 096 25
LAKE dUCHANAN
48053 TEXAS
11.0
DATE
FROM
TO
74/03/14
74/05/21
74/08/16
74/11/04
TIME
OF
DAY
10
10
10
10
10
10
09
09
09
09
09
09
09
09
09
09
09
09
09
09
12
12
12
12
12
12
12
05
05
05
05
05
05
30
30
30
30
30
30
30
35
35
35
35
35
35
35
35
35
35
35
35
35
35
DEPTH
FEET
0000
0005
0015
0035
0060
0095
0000
0005
0024
0045
0060
0075
0098
0000
0015
0037
0045
0065
0080
0096
0000
0005
0020
0040
0060
0080
0101
00010
WATER
TEMP
CENT
16.3
16.7
16.7
15.0
12.0
11.3
24.2
24.1
23.8
22.4
18.5
16.3
14.6
27.4
26.8
26.6
26.3
19.6
17.6
16.5
20.5
20.6
20.6
20.6
20.6
20.5
20.4
11EPALES
00300
00
MG/L
10.2
9.6
9.6
9.0
7.6
8.0
6.8
4.4
1.6
0.5
0.0
7.0
7.2
6.2
3.6
0.0
0.0
0.0
7.0
7.0
6.9
7.0
6.6
6.8
7.0
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICWOMHO
81 590
591
591
559
526
521
115 711
712
707
669
638
607
597
148 779
769
762
755
654
628
625
60 553
551
553
553
553
551
551
3
00400
PH
SU
8.50
• 8.50
8.50
8.40
8.20
8.00
8.60
8.55
8.25
7.85
7.65
7.50
7.50
8.60
8.50
8.50
8.00
7.60
7.80
7.50
8.07
8.05
8.03
8.03
8.03
8.02
8.01
00410
T ALK
CAC03
MG/L
140
140
141
142
141
142
14<»
142
144
146
146
146
151
123
127
127
128
128
126
126
2111202
0100
00610
NH3-N
TOTAL
MG/L
0.030
0.020
0.020
0.030
0.070
0.160
0.040
0.040
0.050
0.040
0.050
0.150
0.130
0.030
0.020
0.020K
'0.020
0.020K
0.020K
0.020K
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.400
0.300
0.300
0.400
0.300
0.500
0.900
0.300
0.300
0.300
0.600
0.500
0.400
0.400
0.200K
0.200
0.300
0.200K
0.200K
0.200K
00630
N02&N03
N-TOTAL
MG/L
0.180
0.160
0.160
0.200
0.220
0.210
0.060
0.070
0.120
0.260
0.330
0.360
0.330
0.210
0.210
0.210
0.210
0.210
0.210
0.210
00671
PHOS-olS
URTHO
MG/L P
0.012
0.012
0.011
0.005
0.005
0.009
0.015
0.013
0.010
0.011
0.010
0.014
0.013
0.016
0.011
0.018
0.011
0.012
0.012
0.013
K VALUE KNOWN TO BE.
LESS THAN INDICATED
-------
STORET RETRIEVAL L>AT.£ 76/02/.1J
480bOi
30 <»5 05.0 098 25 11.0
LAKE ri'jCMANAN
48053 TEXAS
DATE
FROM
TO
74/0 J/ 14
74/05/21
74/08/16
74/11/04
TIME DEPTH
or
UAr FEET
10 05 0000
10 05 0005
10 05 0015
10 05 0035
10 05 0060
10 05 0095
09 30 0000
09 30 0005
09 30 0024
09 30 0045
09 30 0060
09 30 0075
09 30 0098
09 35 0000
09 35 0020
09 35 0033
12 35 0000
12 35 0001
12 35 0005
12 35 0009
12 35 0020
12 35 0040
12 35 0060
12 35 0080
12 35 0101
00665
PHOS-TOT
MG/L P
0.016
0.018
0.019
0.013
0.014
0.023
0.030
0.019
0.019
0.044
0.149
0.066
U.044
0.053
0.036
0.031
0.032
0.032
0.033
0.036
32217 00031
CHLRPHYL INCDT LT
A REMNING
DG/L PERCENT
6.4
9.9
4.5
5.0
1.0
2.3
50.0
1.0
ilEPALcS
3
2111302
0100 FEET
DEPTH
-------
KLTRItVAL OA7E 76/02/1 i
480b02
30 48 19-0 098 24 30.0
LAKE BUCrlANAN
48053 TtAAS
00010
DATE
FROM
TO
74/03/14
74/05/21
74/08/15
74/1 I/O*
TIME
OF
DAY
10
10
10
10
10
10
10
10
10
10
10
15
15
15
15
15
15
12
12
12
12
12
12
55
55
55
55
55
05
05
05
05
05
05
00
00
00
00
00
00
05
05
05
05
05
05
DEPTH
FEET
0000
0005
0015
0035
0060
0000
0005
0017
0030
0035
0040
0000
0015
0030
0040
0052
0064
0000
0005
0015
0025
0045
0061
*ATER
TEMP
CENT
17
16
16
13
13
25
25
24
24
22
21
28
28
27
26
24
19
20
20
20
20
20
20
.0
.9
.4
.9
.3
.3
.1
.8
.3
.5
.2
.6
.0
.5
.6
.7
.5
.7
.7
.7
.7
.7
.7
11EPALES
00300
DO
MG/L
9.6
9.8
9.0
7.4
7.8
7.2
5.6
6.0
5.0
7.4
7.2
7.0
4.4
2.6
0.0
8.0
7.0
7.0
7.0
6.8
6.8
00077 00094
TRANSP CMOUCTVY
SECCHI FIELD
INCHES MICROMHO
68 604
602
592
555
554
«5 732
730
722
710
690
676
170 801
783
782
767
744
673
42 551
551
551
551
551
553
3
00400
PH
su
a. so
8.50
8.50
8.25
e.io
8.60
8.60
8.50
8.40
8.40
8.20
8.70
8.70
8.60
8.20
7.80
7.70
8.11
8.11
8.11
8.11
8.09
8.05
00410
T ALK
CACU3
MG/L
145
145
145
145
146
143
144
146
145
146
140
128
129
127
128
126
122
211
0065
00610
NH3-N
TOTAL
MG/L
0.020
0.020
0.020
0.040
0.080
0.040
0.040
0.040
0.040
0.060
0.050
0.040
0.030
0.040
0.030
O.OSO
0.050
1202
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.500
0.400
0.400
0.400
0.500
0.400
0.300
0.200
0.300
0.300
0.300
0.400
0.200
0.200K
0.300
0.200K
0.200K
00630
N02&M03
N-TOTAL
MG/L
0.180
0.170
0.180
0.210
0.230
0.070
0.060
o.oeu
0.070
0.130
0.190
0.240
0.230
0.230
0.230
0.240
0.260
00671
phos-ois
ORTnO
MG/L P
0.004
0.003
0.003
0.012
0.009
0.010
0.010
0.009
0.009
0.009
0.008
0.013
0.017
0.014
0.012
0.015
0.015
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
480602
30 48 19,0 056 24 30.0
LAKE BUCHANAN
43053 TEXAS
DATE
FROM
TO
74/03/14
74/05/21
74/08/15
74/11/04
00665 32217 00031
TIME DEPTH PHQS-TOT CHLRPHYL INCDT LT
or A REMNING
DAY FEET
10
10
10
10
10
10
10
10
10
10
10
15
15
15
12
12
12
12
12
12
12
55
55
55
55
S5
05
05
05
05
05
05
00
00
00
05
05
05
05
05
05
05
0000
0005
0015
0035
0060
0000
0005
0017
0030
0035
0040
0000
0030
0043
0000
0005
0006
0015
0025
0045
0061
MG/L P UG/L PERCENT
0
0
0
0
0
0
0
0
u
0
0
0
0
0
0
0
0
.014 6.2
.013
.014
.015
.041
.021 10.3
.019
.016
.016
.015
.016
6.0
.093 6.4
.041
.047
.050
.049
.049
5.0
1.0
1.0
HEPALtS
3
21112U2
0065 FEET
DEPTH
-------
STORET HL'TRiEVftL OATE. 76/02/11
480603
30 50 57.0 098 25 12.0
LAKE d'JCnANftN
48053
00010
DATE
FROM
TO
74/03/14
74/05/21
74/08/15
74/11/0*
TIME
OF
DAY
13 40
13 40
13 40
13 40
13 40
10 30
10 30
10 30
10 30
10 30
10 30
14 20
14 20
14 20
14 20
11 40
11 40
11 40
11 40
11 40
DEPTH
FEET
0000
0005
0015
0030
0042
0000
0005
0015
0030
0040
0046
0000
0015
0030
0045
0000
0005
0020
0035
0052
MATER
TEMP
CENT
18.2
18.2
18.2
14.8
14.1
26.1
26.0
26.0
25.7
21.6
19.3
29.3
28.8
27.5
26.7
20.5
20.5
20.5
20.5
20.4
llEPALllS
00300
DO
MG/L
9.4
9.4
8.0
5.6
6.6
6.8
0.8
0.8
0.2
7.8
6.8
3.8
1.8
7.4
6.8
7.2
7.0
6.2
00077
TRANSP
SECCHI
INCHES
50
40
78
12
00094
CNDUCTVY
FIELD
MICROMHO
642
643
642
585
580
788
786
781
776
708
669
816
821
796
789
539
539
539
539
523
3
00400
PH
su
8.50
8.50
8.50
8.20
8.10
8.60
8.55
8.50
7.80
7.75
7.70
8.70
8.60
8.25
7.95
8.03
8.05
8.03
8.01
7.71
00410
T ALK
CAC03
MG/L
153
151
150
148
147
141
141
141
146
148
148
129
128
128
126
120
2111202
0047
00610
NH3-N
TOTAL
MG/L
O.C20
0.020
0.020
0.070
0.090
0.050
0.060
0.050
0.060
0.060
0.070
0.080
0.070
0.070
0.080
0.100
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.400
0.500
0.400
0.400
0.400
0.700
0.400
0.400
0.300
0.400
0.400
0.500
0.500
0.500
0.500
0.400
00630
N02&N03
N-TOTAL
MG/L
0.180
0.170
0.180
0.220
0.240
0.080
0.080
0.060
0.240
0.270
0.260
0.360
0.360
0.360
0.360
0.490
00671
PHOS-DIS
ORTHO
MG/L P
0.005
0.010
0.006
0.008
0.016
0.013
0.010
0.011
0.012
0.013
0.016
0.024
0.035
0.036
0.021
0.022
-------
STORE! KETrtlEVAL OAT£ 76/02/11
48060J
30 50 57.0 098 25
LAKE 6UC-U.-4AN
48053 TEXAS
12.0
DATE
FROM
TO
74/03/14
74/05/21
74/08/15
74/11/04
00665 32217 00031
TIME DEPTrl r^MOS-TOT CHLRPMYL INCOT LT
OF A rtEMNING
DAY FEET
13
13
13
13
13
10
10
10
10
10
10
14
14
14
1
1
1
1
1
1
40
40
40
40
40
30
30
30
30
30
30
20
20
20
40
40
40
40
40
40
0000
0005
0015
0030
0042
0000
0005
0015
0030
0040
0046
0000
0002
0009
0000
0002
0005
0020
0035
0052
MG/L P UG/L PERCENT
0
U
0
0
0
0
0
0
0.
0
0
0.
0
0
0
0
.023 6.6
.022
.018
.020
.019
,049 7.0
,033
,037
,046
,044
,045
8.8
.095 16.5
.085
,090
.098
,172
5.0
1.0
1.0
HEPALES
3
2111202
0047 FEET
DEPTH
-------
bTOKET RETRIEVAL JATE 7&/02/11
44060*
30 53 59.0 098 36 57.0
LAKE SUC'-lANAN
48053 TtXAo
DATE
FROM
TO
74/03/14
74/05/21
74/08/15
74/11/04
DATE
FROM
TO
74/03/14
74/05/21
74/08/15
74/11/04
TIME DEPTH
UF
DAY FEET
14 05 0000
14 05 0002
14 05 0008
11 00 0000
11 00 0005
11 00 0011
14 05 0000
14 05 0008
11 05 0000
11 05 0005
11 05 0012
TIME DEPTH
OF
DAY FEET
14 05 0000
14 05 0008
11 00 0000
11 00 0005
11 00 0011
14 05 0000
11 05 0000
11 05 0001
11 05 0005
11 05 0012
00010
WATER
TtMP
CENT
19. 8
19.8
19.8
26.8
26.6
26.5
29.7
28.1
19.6
19.5
19.5
00665
PHOS-TOT
MG/L P
0.018
0.046
0.123
0.106
0.181
0.166
0.167
0.169
00300 00077
DO TRANSP
SECCHI
MG/L INCHES
15
8.4
8.0
12
5.6
4.2
6.4 14
4.6
7.2 8
6.8
6.8
32217 00031
CHLRPHYL INCOT LT
A REMNING
UG/L PERCENT
8.4
9.8
24.9
3.7
1.0
00094
CNOUCTVY
FIELD
MICROMHO
872
872
872
810
808
804
896
626
59b
595
593
ilEPALc.5 2111
3 0012
00400 00410 00610
PH T ALK NH3-N
CAC03 TOTAL
SU MG/L MG/L
8.30 203 0.030
8.20 202 0.060
8.40 148 0.110
8.25 149 0.140
8.30 150 0.230
8.60
8.10
7.75 125 0.070
7.77 109 0.060
7.77 125 0.060
202
FEET DEPTH
00625 00630 00671
TOT KJEL N02&N03 PHOS-DIS
N N-TOTAL ORTHO
MG/L MG/L MG/L P
0.800 0.190 0.014
0.700 0.200 0.022
1.100 0.300 0.032
0.800 0.250 0.020
1.000 0.250 0.025
1.000 0.480 0.038
0.300 0.480 0.059
0.400 0.470 0.043
-------
APPENDIX E
TRIBUTARY DATA
-------
STOHET RETRIEVAL DATE 7(3/03/10
DATE TIME DEPTH N02t.N03
FROM OF
TO DAY FEET
74/09/07
74/10/07
74/11/07
74/12/07
75/01/07
75/02/07
75/03/07
75/04/07
75/04/21
75/05/05
75/05/19
75/06/07
75/07/07
75/08/07
12 20
11 15
11 15
11 25
11 20
11 10
lu 55
11 00
11 15
11 51
09 55
11 30
12 25
12 10
4S06A1
30 45 05.0 098 25 00.0 4
COLORADO «IVEfi
4S'_<*9 7.5 LK BuCnA^AN
,0/l.AKE dUCMANAN
TXNdlNE EAnfiUST FROM POWE-?riOUSE
11EHALLS 2111-2!>4
OCOO FEET DEPTH CLASS 00
0630
t,N03
OTAL
G/L
0.012
0.192
0.216
0.368
0.526
0.4SO
0.510
0.590
0.550
0.620
0.630
0.620
0.390
0.120
00625
TOT KJEL
N
MG/L
0.900
0.600
0.300
o.eoo
0.500
0.300
0.500
0.750
1.100
0.500
0.400
0.400
0.350
o.soo
00610
NH3-N
TOTAL
MG/L
0.015
0.135
0.020
0.064
o.oeo
C.C32
0.050
0.055
0.045
0.025
0.015
0.015
0.020
0.030
00671
PrlOS-JIS
OPTrlO
MG/L P
0.010
0.035
0.010
0.030
U.010
0.006
0.010
0.010
0.005
0.005
0.005K
0.020
0.005K
0.060
00665
PHOS-TOT
MG/L P
O.C55
0.060
0.020
0.030
0.030
O.Olim
0.030
0.010
0.030
0.010*
0.020
0.020
0.020
0.100
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
RETRIEVAL OATE 7o/03/10
DATE TIME DEPTH N02sN03
F30M OF
TO DAf FEET
74/0^/07
74/10/07
74/11/07
74/12/07
75/01/07
75/03/07
75/03/07
75/04/07
75/04/21
75/05/05
75/C5/J9
75/06/07
75/07/07
75/08/07
15 30
14 40
14 45
15 05
14 30
13 SO
14 <*0
14 00
14 45
15 19
12 50
15 20
15 45
16 05
31 06 OO.'"1 096 31 00.0 4
COLOKuL/0 -
-------
STO>*£T RETRIEVAL DATE 76/0 J/1C
DATE TIME DEPTH N02&N03
FROM OF
TO DAY FEET
74/09/07
74/10/07
74/1 1/07
74/12/07
75/01/07
75/02/07
75/03/07
75/04/07
75/04/21
75/05/05
75/05/19
75/06/07
75/07/07
75/08/07
13
12
12
12
12
11
12
11
11
12
10
12
13
12
30
30
00
10
00
50
00
35
50
31
40
05
35
48
30 52 50. ••> 09d 3d 30.0 4
CriLi/E^T CREEK
48 7.5 TOn-
0.1 MI M JF FM 2241 ? 2NDAHY *D JCT
HEPALtS 2111204
oooo TEET DEPTH CLASS oo
0630
&N03
OTAL
;l3/L
0.008
0.016
0.024
0.024
0.032
0.110
0.025
0.045
0.010
0.005
0.005
0.005
0.055
0.035
00625
TOT KJEL
IM
MG/L
0.200
0.200
0.300
0.100K
0.300
0.100K
0.200
0.200
0.250
0.050
0.150
0.300
0.050
0.350
00610
NH3-N
TOTAL
MG/L
0.005K
0.015
0.015
0.006K
0.008
0.008
0.015
0.025
0.010
0.010
0.005K
0.015
0.005
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.010
0.005K
0.015
0.006
0.0o5
O.OOR^
0.005K
0.005
0.005K
0.010
0.005
0.005K
0.005K
0.030
OC665
PHOS-TOT
MG/L P
0.010
0.010K
0.015
0.010K
0.010K
0.010
0.010K
0.020
0.010
0.020
0.010K
0.030
0.060
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOKE. T «ClKlE'.'AL OATt. 76/0 J/iO
4506C1
30 55 OS.1"1 0=58 26 25.0 4
FALL CVELK
48 '.5 row
T/LAKE 3UOANAN
UNIMPr^OVLj ^0 XING a.5 MI N OF
11E°ALES 2111204
0000 FEET OEPTrt CLASS 00
TO*
DATE TIME DEPTH N02&N03
FROM 0^
TO DAY FEET
74/09/07
74/10/07
74/11/07
74/12/07
75/01/07
75/02/07
75/03/07
75/04/07
75/04/21
75/05/05
75/05/19
75/06/07
75/07/07
75/08/07
13 55
12 55
12 25
12 20
12 30
12 15
12 30
12 05
12 35
13 12
11 05
12 33
14 05
13 25
0630
AN03
OTAL
G/L
0.390
C.416
0.064
0.360
0.384
0.224
0.230
0.337
0.360
0.360
0.250
0.230
0.230
0.260
00625
TOT KJEL
N
MG/L
0.200
0.100*
0.300
0.300
0.200
0.100K
0.212
0.500
0.150
0.200
0.100
0.250
0.100
0.200
00610
Ni3-N
TOTAL
MG/L
0.010
0.015
0.020
0.016
0.016
o.ooex
0.010
0.035
0.010
0.020
0.005*
0.010
0.005K
0.010
00671
PHOS-DIS
O*THO
MG/L P
C.01U
0.005K
0.010
0.005
0.005K
0.006K
0.005K
0.005
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.010
0.010K
0.010
0.010K
0.010K
0.010
0.010K
0.050
0.020
0.010
0.010K
0.010*
0.010K
0.01S
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORtT
0«?E 7o/03/10
DATE TIME DEPTH N02J.N03
FrtOM OF
TO DAY FEET
74/09/07
74/10/07
74/11/07
74/12/07
75/01/07
75/02/07
75/03/07
75/04/07
75/04/21
75/05/05
75/05/19
75/06/07
75/07/07
75/08/07
15
14
14
14
14
13
14
13
14
15
12
15
15
15
?0
25
30
30
10
30
25
50
40
02
40
10
35
30
4M06U1
31 06 00.0 098 30 20.0 4
CHEROKEE oftEEK
n8 SAN SABA CO
T/LAKt BUCHANAN
SEC HO BROG AT bEND
11EPALES
8 M W OF SEC RD
21112C<»
0000 FEET DEPTH CLASS 00
0630
J.N03
OTAL
iG/L
0.013
0.032
0.032
0.0}6
0.080
0.704
0.160
0.045
0.020
0.560
0.030
0.020
0.025
0.010
00625
TOT KJEL
N
MG/L
0.400
0.300
0.400
0.200
0.300
0.400
0.250
0.450
0.300
2.400
0.700
1.050
0.450
0.550
00610
NH3-N
TOTAL
MC-./L
0.010
0.040
0.020
0.016
0.008K
0.016
0.010
0.055
0.035
0.120
0.005
0.017
0.005K
0.010
00671
PriOS-OIS
ORTHO
MG/L P
0.005
0.005K
0.010
0.005K
0.005K
0.043
0.005K
0.005
0.005K
0.100
0.005K
O.OiO
0.005K
0.025
00665
PHOS-TOT
MG/L P
0.035
0.020
0.020
0.010K
0.010K
0.06G
0.020
0.010^
0.040
0.400
0.080
0.040
0.050
0.070
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
DATE 76/03/10
DATE TIME DEPTH N02&N03
F«OM or
TO DAr FEET
74/09/07
74/10/07
74/11/07
74/12/07
75/01/07
75/02/07
75/03/07
75/04/07
75/04/21
75/05/05
75/05/19
75/06/07
75/07/07
75/08/07
11
10
10
10
10
10
10
11
10
10
09
10
11
10
25
30
25
30
25
10
00
10
10
40
05
05
35
36
4H06E1
30 51 10." 098 20 30.U 4
N FOR* MO"!uAN CrttEfv
48 7.5 COUNCIL CKN
T/LAKE dUC-iANAN
AT OI«T *J i.O MI N OK FM 2341 JCT
HEPALLS 2111204
0000 FEET DEPTH CLASS 00
0630
S.N03
OTAL
IG/L
0.264
0.272
0.432
0.690
0.690
0.490
0.525
0.550
0.260
0.330
0.145
0.180
0.190
0.125
00625
TOT KJEL
N
HG/l
0.500
0.200
0.300
0.200
0.500
0.150
0.300
0.400
0.600
0.350
0.550
0.500
0.450
0.300
00610
NH3-N
TOTAL
Mo/L
0.005K
0.025
0.020
9.016
0.024
0.008*
0.010
0.030
0.030
0.045
0.025
0.030
0.025
0.015
00671
PHOS-OIS
ORTriO
MG/L P
0.005K
0.005K
0.010
0.005
0.005K
0.008K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005
0.005K
0.005K
00665
PHOS-TOT
MG/L P
0.005
0.010K
0.010
0.010K
0.010K
O.OlUK
0.010
0.010K
0.020
0.010*
0.010K
0.010K
0.010
0.010K
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
[T^ILVAt. uAFE 7-vO j/ 1 J
4-06F1
30 50 35. '"i 09>< IS
------- |