U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE LYNDON B, JOHNSON
BURNET AND LLANO COUNTIES
TEXAS
EPA REGION VI
WORKING PAPER No, 645
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440
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REPORT
ON
LAKE LYNDON B, JOHNSON
BURNET AND LLANO COUNTIES
TEXAS
EPA REGION VI
WORKING PAPER No, 645
WlTK THE COOPERATION OF THE
TEXAS WATER QUALITY BOARD
AND THE
TEXAS NATIONAL GUARD
APRIL, 1977
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CONTENTS
Page
Foreward ii
List of Texas Study Reservoirs iv
Lake and Drainage Area Map vi
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings n
V. Literature Reviewed 17
VI. Appendices 18
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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)j,
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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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.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY RESERVOIRS
State of Texas
NAME
Amistad
Bastrop
Bel ton
Braunig
Brownwood
Buchanan
Caddo
Calaveras
Canyon
Colorado City
Corpus Christi
Diversion
Eagle Mountain
Fort Phantom Hill
Houston
Kemp
Lake O'The Pines
Lavon
LewisviTie (Garza-Little Elm)
Livingston
COUNTY
Va.l 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
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Lyndon B. Johnson
Medina
Meredith
0. C. Fisher (San Angelo)
Palestine
Possum Kingdom
Sam Rayburn
Somervil le
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
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LAKE LYNDON B.
JOHNSON
® Tributary Sa-oling Site
X Lake Sampling SUe
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LAKE LYNDON B. JOHNSON
STORE! NO. 4821
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake Lyndon B. Johnson is
eutrophic; i.e., well supplied with nutrients and quite pro-
ductive. Whether nutrient enrichment is beneficial or dele-
terious 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 water body.
Lake Lyndon B. Johnson ranked twenty-ninth in overall
trophic quality when the 39 Texas reservoirs sampled in 1974
were compared using a combination of six parameters*. Twenty-
two of the reservoirs had less and two had the same median
total phosphorus, 25 had less and three had the same median
dissolved phosphorus, 34 had less median inorganic nitrogen,
13 had less mean chlorophyll a_, and 18 had greater mean Secchi
disc transparency. Marked depression of hypolimnetic dissolved
oxygen occurred at stations 1 and 2 in May and August.
Survey limnologists noted a few patches of emergent macro-
phytes.
* See Appendix A.
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B. Rate-Limiting Nutrient:
The algal assay results indicate that primary productivity
in Lake Lyndon B. Johnson was phosphorus limited at the times
the samples were collected (03/13/74 and 11/04/74). The lake
data indicate phosphorus limitation at all sampling times.
C. Nutrient Controllability:
1. Point sources—The phosphorus contributions of domestic
point sources amounted to an estimated 47% of the total load
reaching Lake Lyndon B. Johnson during the sampling year. The
Sunrise Beach and Lake L.B.J. municipal utility districts col-
lectively contributed.an estimated 38.8% of the total load
directly to the lake, and the Llano wastewater treatment plant
contributed an estimated 7.3%.
The present phosphorus loading of 1.39 g/m2/yr exceeds that
proposed by Vollenweider (Vollenweider and Dillon, 1974) as a
eutrophic loading (see page 16). It is calculated that 80%
removal of phosphorus at the three point sources would reduce
the loading to 0.87 g/m2/yr; i.e., a mesotrophic loading. If
Vollenweider's mesotrophic level is applicable to Texas reser-
voirs, the reduced loading should result in improvement in the
trophic condition of Lake Lyndon B. Johnson.
2. Non-point sources—The phosphorus contributions of non-
point sources accounted for an estimated 53% of the total phos-
phorus load during the sampling year. The Colorado River con-
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tributed 41.6%, the Llano River contributed 4.7%, and the
remaining four gaged tributaries collectively contributed
4.5% of the total load.
The nutrient export rates of the gaged tributaries were
very low during the sampling year (see page 15) and averaged
less than 1 kg P and about 26 kg N/km2.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Morphometry :
1. Surface area: 25.80 kilometers2.
2. Mean depth: 6.7 meters.
3. Maximum depth: >24.4 meters.
4. Volume: 172.860 x 106 m3.
5. Mean hydraulic retention time: 56 days (based on outflow).
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Slickrock Creek 23.3 0.05
Walnut Creek 63.5 0.13
Sandy Creek 846.9 1.67
Honey Creek 100.0 0.21
Llano River 11,473.7 9.66
Colorado River 81,092.8 22.17
Minor tributaries &
immediate drainage - 365.1 3.54
Totals 93,965.3 37.43
2. Outlet -
Colorado River 93,991.1** 35.82
C. Precipitation***:
1. Year of sampling: 89.4 centimeters.
2. Mean annual: 69.5 centimeters.
t Table of metric conversions—Appendix B.
tt Butler, 1974.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
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III. WATER QUALITY SUMMARY
Lake Lyndon B. Johnson was sampled four times during 1974 by means
of a pontoon-equipped Huey helicopter. Each time, samples for physical
and chemical parameters were collected from three stations on the lake
and from a number of depths at each station (see map, page vi). During
each visit, a single depth-integrated (4.6 m to surface) sample was
composited from the stations for phytoplankton identification and enumera-
tion; and during the March and November visits, single 18.9-liter depth-
integrated samples were 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 24.4 meters at
station 1, 14.3 meters at station 2, and 7.0 meters at station 3.
The sampling results are presented in full in Appendix D and are
summarized in the following table (nutrient samples collected in August
were not preserved properly and were not analyzed).
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PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/D
SECCHI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 3/13/74)
3 SITES
RANGE
12.3 - 20.3
5.0 - 9.2
326. - 466.
CHEMICAL CHARACTERISTICS FOR LYNDON B JOHNSON LAKE
STORET CODE 4821
MEAN MEDIAN
17,3 18.0
8.1
416.
8.3
0.530 - 1.130
5.2 - 6.9
0.9 - 1.2
8.5
409.
7.8 - 8.5
156. - 168. 160. 159.
0.016 - 0.060 0.025 0.022
0,004 - 0.019 0.007 0.006
0.230 - 0.650 0.470 0.520
0.020 - 0.100 0.037 0.030
0.300 - 0.700 0.413 0.400
0.250 - 0.700 O.S07 0.540
0.893 0.940
6.2 6.4
1.0 0.9
2ND SAMPLING ( 5/21/74)
3 SITES
RANGE MEAN MEDIAN
15.1 - 29.3 24.1 26.0
0.1 r 8.0 2.2 1.0
275. - 460. 402. 430.
7.6 - 8.8 8.1 7.9
98. - 161. 126. 130.
0.035 - 0.133 0.060 0.046
0.006 - 0.028 0.015 0.012
0.160 - 0.560 0.366 0.370
0.078 0.060
0.524 0.500
0.444 0.490
0.040 - 0.190
0.300 - 0.900
0.200 - 0.630
0.550 - 1.150
5.2 - 32.9
0.7 - 0.9
0.889 0.900
17.0 12.9
0.8 0.9
3RO SAMPLING ( 8/16/74)
3 SITES
RANGE
16.8 - 29.6
0.1 - 7. a
37<». - 548.
7.7 - 8.6
«»«•»»« - « l» CO OO (HHHHHHHtOOO O « «ttO
«»««»* - tnnnntotnnnxnt o otnnnnnj o o
MEAN
26.4
4.1
488.
8.1
MEDIAN
27.6
4.2
532.
8.0
ooooaa -oaaoaaaoaoooaaooaoaooo
aaoaaa -
aooaaa .
oaoaoa -
3.7 -
0.3 -
7.0
2.8
5.7
1.9
6.5
2.5
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PARAMETER
TEMP
DISS OXY (MG/L)
CNDCTVY (MCWOMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLHPYL A (UG/L>
SECCHI (METEWS)
A. SUMMApy OK PHYSICAL AND CHEMICAL CHARACTERISTICS FOK LfNDON a JOHNSON LAKE
STOrtET CUOE 4821
4TH SAMPLING ( 1 I/ <»/7<»)
3 SITES
t^ANGE
20.4 - ao.9
6.6 - 8.2
500. - 558.
7.7 - 8.0
89. - 139.
0.038 - 0.111
0.013 - 0.026
0.080 - 0.290
0.020 - 0.240
0.200 - 0.800
0.260 - 0.390
0.4*0 - 0.960
2.5 - 5.1
0.6 - 0.9
MEAN
20.7
7.6
525.
7.9
127.
0.048
0.019
0.253
0.047
0.427
0.300
0.68C
3.5
0.7
MEDIAN
20.7
7.8
519.
a.c
126.
0.044
0.019
0.260
0.030
0.400
0.300
0.670
2.9
0.6
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B. Biological characteristics:
1. Phytoplankton * -
Sampling
Date
03/13-14/74
05/21/74
1.1/04/74
Dominant
Genera
Algal Units
per ml
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2..
3.
4.
5.
Scenedesmus sp.
Dactylococcopsis sp.
Centric diatoms
Synedra sp.
Cryptomonas sp.
Other genera
Total
Flagellates
Crueigenfa sp.
Centric diatoms
Nitzschia sp.
Scenedesmus sp.
Other genera
Total
Cryptomonas sp.
Melosira sp.
Stephanodiscus sp.
Pennate diatoms
Scenedesmus sp.
Other genera
Total
1,239
1,304
783
783
522
456
2.413
6,261
188
125
125
125
31
2
596
The August phytoplankton sample was lost in shipment.
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2. Chlorophyll a -
Sampling
Date
03/13-14/74
05/21/74
08/16/74
11/04/74
Station
Number
1
2
3
1
2
3
1
2
3
1
2
3
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)
0.560
0.560
1.560
1.560
Inorganic N
Cone, (mg/1)
0.271
0.271
1.271
1.271
Chlorophyll a_
(yg/1)
6.9
5.2
6.4
5.2
32.9
12.9
3.7
7.0
6.5
5.1
2.5
2.9
Maximum yield
(mg/1-dry wt.)
0.1
9.0
15.0
0.1
Maximum yield
(mg/1-dry wt.)
1.1
7.9
21.4
0.4
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10
2. Discussion -
The control yields of the assay alga, Selenastrum capri-
cornutum, indicate that the potential primary productivity
of Lake Lyndon B. Johnson was low in March (03/13/74) but
moderate in November (11/04/74). Increased yields with the
addition of orthophosphorus indicate phosphorus limitation.
Note that the additions of only nitrogen resulted in yields
not significantly different from those of the controls.
The lake data also indicate phosphorus limitation; i.e.,
the mean inorganic nitrogen/orthophosphorus ratios were 16/1
or greater at all sampling times.
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11
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
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 B-l, C-l, D-l, and E-l and
multiplying the means by the II area in km2.
The City of Llano and the municipal utility districts of Sunrise
Beach and Lake L.B.J. did not participate; nutrient loads from these
sources were estimated at 1.134 kg P and 3.401 kg N/capita/year, and
Llano flows were estimated at 0.3785 m3/capita/day.
* See Working Paper No. 175.
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12
A. Waste Sources:
1. Known municipal -
Name
Lake L.B.J.
M.U.D.*
Sunrise Beach
M.U.D.*
Llano**
2. Known industrial - None
Pop.
Served
10,000
2,300
2,200
Treatment
?
?
stab, pond
Mean Flow
(m3/d)
5,678.1
1,324.9
823.7
Receiving
Water
Lake L.B.J.
Lake L.B.J.
Llano River
'* Wyatt, 1976.
** Anonymous, 1971.
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13
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Slickrock Creek 15 <0.1
Walnut Creek 55 0.2
Sandy Creek 1,460 4.1
Honey Creek 70 0.2
Llano River 1,695 4.7
Colorado River 14,965 41.6
b. Minor tributaries & immediate
drainage (non-point load) - 365 1.0
c. Known municipal STP's -
Lake L.B.J. M.U.D. 11,340 31.5
Sunrise Beach M.U.D. 2,610 7.3
Llano 2,495 6.9
d. Septic tanks* - 465 1.3
e. Known industrial - None
f. Direct precipitation** - 450 1.2
Total 35,985 100.0
2. Outputs -
Lake outlet - Colorado River 34,975
3. Net annual P accumulation - 1,010 kg.
* Estimate based on 1,579 lakeshore dwellings and 16 parks; see Working
Paper No. 175.
** See Working Paper No. 175.
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14
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Slickrock Creek 800 0.1
Walnut Creek 2,240 0.2
Sandy Creek 19,830 2.0
Honey Creek 3,230 0.3
Llano Creek 235,370 23.6
Colorado River 630,955 63.2
b. Minor tributaries & immediate
drainage (non-point load) - 11,320 1.2
c. Known municipal STP's -
Lake L.B.J. M.U.D. 34,010 3.4
Sunrise Beach M.U.D. 7,820 0.8
Llano 7,480 0.7
d. Septic tanks* - 17,390 1.7
e. Known industrial - None
f. Direct precipitation** - 27,855 2.8
Total 998,300 100.0
2. Outputs -
Lake outlet - Colorado River 1,092,665
3. Net annual N loss - 94,365 kg.
* Estimate based on 1,579 lakeshore dwellings and 16 parks; see Working
Paper No. 175.
** See Working Paper No. 175.
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15
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Slickrock Creek <1 34
Walnut Creek <1 35
Sandy Creek 2 23
Honey Creek <1 32
Llano River <1 21
Colorado River <1 8
E. Mean Nutrient Concentrations in Ungaged Stream:
Mean Total P Mean Total N
Tributary Cone, (mg/1) Cone, (mg/1)
Peters Creek 0.012 0.513
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16
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
wa.ter bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/m2/yr 1.39 0.04 38.7 "loss"*
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake Lyndon' B. Johnson:
"Dangerous" (eutrophic loading) 1.28
"Permissible" (oligotrophic loading) 0.64
* There was an apparent loss of nitrogen during the sampling year. This may
have been due to nitrogen fixation in the lake, solubilization of previously
sedimented nitrogen, recharge with nitrogen-rich ground water, unknown and
unsampled point sources.discharging directly to the lake, or underestimation
of the minor tributary and immediate drainage load. Whatever the cause,
a similar nitrogen loss, has occurred at Shagawa Lake, Minnesota, which has
been intensively studie'd. by EPA's former National Eutrophication and Lake
Restoration Branch (Malueg et al., 1975).
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17
V. LITERATURE REVIEWED
Anonymous, 1971. Inventory of municipal waste facilities. EPA
Publ. OWP-1, vol. 6, Wash. DC.
Butler, D. Wade, 1974. Fisheries management recommendations.
Fed. Aid Proj. F-2-R-22, TX Parks & Wild!. Dept., Austin.
Latchford, John B. Jr., 1974. Personal communication (lake mor-
phometry). TX Water Qual. Bd., Austin.
Malueg, Kenneth W., D. Phillips Larsen, Donald W. Schults, and
Howard T. Mercier; 1975. A six-year water, phosphorus, and
nitrogen budget for Shagawa Lake, Minnesota. Jour. Environ.
Qual., vol. 4, no. 2, pp. 236-242.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
Wyatt, Linda B, 1976. Personal communication (sewage treatment
facilities). TX Water Qual. Bd., Austin.
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18
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
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DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
4801 AMISTAD L-AKE
4802 BASTROP LAKE
4803 8ELTON RESERVOIR
4804 BRAUNIG LAKE
4805 BROwNWOOD LAKE
4806 LAKE BUCHANAN
4807 CAOOQ LAKE
4808 CALAVERAS LAKE
«»809 CANYON RESERVOIR
4810 LAKE COLORADO CITY
4811 CORPUS CRIST1 LAKE
4812 DIVERSION LAKE
4813 EAGLE MOUNTAIN LAKE
4ai4 FT PHANTOM HILL LAKE
4815 GARZA LITTLE ELM RESEHVO
4816 KEMP LAKE
4817 HOUSTON LAKE
4818 LAKE OF THE PINES
4819 LAVON RESERVOIR
4820 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
0.096
0.02s>
0.036
MEDIAN
INO^G N
0.500
0.090
0. 165
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
CHLOKA
2.042
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 00
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.HOO
14.600
10.400
12.400
15.000
8.800
15.000
14.900
15.000
14.900
14.800
15.000
10.200
15.000
15.000
MEDIAN
DISS ORTHO P
0.009
0.007
0.007
0.062
0.007
0.012
O.OU
0.007
0.006
0.012
0.050
0.009
0.008
0.022
0.018
0.007
0.036
0.011
0.018
0.128
0.013
0.004
0.009
0.010
0.009
0.011
0.009
0.008
-------
LAKE DATA TO BE USED IN
LAKE
CODE LAKE NAME
4829 SOMEflVILLE LAKE
4830 STAMFORD LAKE
4831 STILLHOUSE HOLLO* RESEKV
4832 TAWAKOM LAKE
4833 TEXARKANA LAKE
4834 TEXOMA 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
0.106
0.042
0.018
0.389
0.029
0.020
0.028
MEDIAN
INO^O N
0.115
0.160
0.160
0.100
0.120
0.160
0.250
0.110
0.250
0.110
0.120
500-
MEAN SEC
473.833
482.7U
406.250
466.417
47U.500
451.321
389.913
479.500
454.917
434.500
430.500
MEAN
CHLORA
24.491
18.457
3.917
18.246
19.119
12.493
5.595
24.300
8.708
4.333
6.912
lb-
MIN 00
13.000
10.600
15.000
13.200
12.400
15.000
IS. 000
10.000
14.800
15.000
15.000
MEDIAN
OISS (JrfTriO
0.013
0.012
0.010
0.013
0.030
0.018
0.007
0.240
0.009
0.009
0.006
-------
L4<.ES RANKED BY INDE.'. NOS.
RANK LAKE CODE LAKE NAME
i 4?o,9
2 4ts23
3 4813
4 4816
5 4801
6 4805
7 480?
8 4838
9 4825
10 4835
11 4803
12 4831
13 4812
14 4806
15 4839
16 4822
17 4827
18 4828
19 4837
20 4810
21 4824
22 4818
23 4807
24 4814
25 4806
26 4830
27 4819
28 4832
RESERVOIR
LAKE MEREDITH
EAGLE MOUNTAIN LAKE
KEMP LAKE
AMI5TAO LAKE
SROaNWOOD LAKE
BASTRuP LAKE
»HIT£ RIVER RESERVOIR
POSSUM KINGDOM RESERVOIR
TRAVIS LAKE
BELTON RESERVOIR
STILLHOUSE HOLLOW RESERV
DIVERSION LAKE
CALAVERAS LAKE
WHITNEY LAKE
MEDINA LAKE
SAM RAYBURN RESERVOIR
E V SPENCE RESERVOIR
TWIN BUTTES RESERVOIR
LAKE COLORADO CITY
PALESTINE LAKE
LAKE OF THE PINES
CADOO LAKE
FT PHANTOM HlLL LAKE
LAKE BUCHANAN
STAMFORD LAKE
LAVON RESERVOIR
TAWAKONI LAKE
INDEX NO
445
441
430
423
402
394
393
390
387
384
384
372
372
362
357
342
322
321
311
310
302
298
297
296
261
259
258
253
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INQEX NO
29 4821 LYNDON B JOHNSON LAKE 238
30 4834 TEXOMA LAKE 217
31 4829 SOMERVILLE LAKE 208
32 4826 SAN ANGELO RESERVOIR 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 CRIST! LAKE 155
38 4817 HOUSTON LAKE 139
39 4820 LIVINGSTON LAKE 91
-------
PERCENT OF LAKES «ITH n
LAKE
CODE LAKE NAME
VALUES SNUMBER OF LAKES *iT> HI one* VALUES*
••801 AMISTAO LAKE
4802 BASTROD LAKE
4803 BELTON RESERVOIR
4804 8RAUNIG LAKE
4805 BROWNWOOO LAKE
4806 LAKE BUCHANAN
4807 CADOO LAKE
*808 CALAVERAS LAKE
4809 CANYON RESERVOIR
4810 LAKE COLORADO CITY
4811 CORPUS CRIST! LAKE
4813 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
4831 LYNDON B JOHNSON LAKE
4832 MEDINA LAKE
4823 LAKE MEREDITH
4834 PALESTINE LAKE
4825 POSSUM KINGDOM RESERVOIR
<«826 SAN ANOELO RESERVOIR
4827 SAM RAYBURN RESERVOIR
482B E V SPENCE RESERVOIR
MEDI AN
TOTAL P
95
79
92
5
66
47
26
45
99
39
6
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)
MEDIAN
INORG N
5
76
26
42
70
21
91
100
e
76
47
83
91
66
13
61
16
76
29
3
11
0
91
32
91
45
39
83
( 2)
( 28)
( 10*
( 16)
( 261
( 7*
( 33)
( 38)
( 3)
( 28)
( 18)
( 31)
( 33*
( 251
( 5)
( 22)
( 6)
( 28)
( ID
( 1)
( 4)
( 0)
< 33)
( 121
( 33)
( 17)
( 15)
(31)
500-
MEAN SEC
100
82
97
50
29
74
42
47
95
26
18
32
34
21
16
55
0
66
3
39
53
89
71
63
84
8
68
45
( 36)
( 3D
( 37)
( 19)
( ID
( 28)
( 16)
( 18)
( 36)
( 10)
( 7)
( 12)
( 13)
< a*
( 6)
( 21)
( 0)
( 25)
( 1)
( 15)
( 20)
( 34)
( 27)
( 24*
< 32*
( 3)
( 26)
( 17)
MEAN
ClLGriA
100
47
68
8
87
63
32
11
97
42
13
29
79
74
34
55
24
39
84
26
66
37
95
53
ba
0
76
50
( 3d)
( 18)
( 26)
( 3)
( 33)
( 2<**
( 12)
( 4)
( 37)
( 16)
( 5)
( ID
( 30)
( 28*
( 13)
( 21)
( 9)
( 15*
( 32)
( 10)
( 25*
( 14)
( 36)
( 20)
( 22)
( 0)
( 29)
( 19)
1s-
MIN DO
39
17
17
49
58
17
76
67
49
38
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
OISS OHTHU P
63 (
92 (
84 (
5 (
84 (
39 (
30 (
92 (
97 (
39 (
8 (
63 (
76 (
16 (
21 (
92 (
11 (
46 (
31 (
3 (
30 (
100 (
63 (
51 (
63 (
46 (
63 (
7¥> (
21)
34*
3D
2)
3D
14)
10)
34)
37)
14)
3)
21)
28)
6)
7)
34)
4)
17)
7)
1)
10)
38)
21)
19)
21)
17*
21)
28*
INDEX
NO
40<:
3-<3
Jd4
159
394
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 OF LAKES *ITH HIGHER VALUES)
LAKE
CODE LAKE NAME
4829 SOMERVILLt. LANE.
4830 STAMFORD LAKE
4831 STILLHOUSE HOLLOW RESt*V
4632 TAWAKONI LAKE
4833 TF.AAHNANA LAKt.
4834 TEXOMA LAKE
4B35 TRAVIS LAKE
4836 TRINIDAD
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
( ID
( 7)
( 33)
( 12)
( 4)
( 14)
( 33)
( 0)
( 22)
( 32)
( 24)
MLDI
iNO*;
55
97
37
70
51
34
21
61
21
61
51
AN
>G N
( 21)
•: 37)
( 14)
( 26)
( 19)
( 13)
( 7)
( 22)
( 7)
< 22)
( 19)
500-
MEAN SEC
24
5
e7
37
13
61
92
11
58
76
79
( V)
( 2)
( 33)
( 14)
( 5)
( 23)
( 35)
( 4)
< 22)
( 29)
( 30)
MEAN
CHLORA
3
13
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
( 251
( 31)
( 0)
( 24)
( 27)
( 0)
( 0)
( 35)
< 17)
( 0)
( 0)
'•1EOI AN
DIS5 J->THO H
30
39
51
30
1 3
21
84
0
63
63
76
( 10)
( 14)
( 19)
I 10)
( 5)
( 7)
( 31)
( 0)
( 21)
( 21)
( 28)
INOEX
NO
20s
259
372
253
176
217
J84
169
311
390
357
-------
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
-------
LAKE CODE 48?1
TRIBUTARY- FLOW INFORMATION FOR TEXAS
LfNOUN b. JOHNSON LAKE
02/11/76
TOTAL DRAINAGE AREA OF LAKE(SQ KM) 93991.1
SUB-DRAINAGE
TKIBUTAWY
JAN
FES
MAR
APR
MAY
NORMALIZED FLOWS(CMS)
JUN JUL AUG
SEP
OCT
NOV
L>tC
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 93991.1
SUM OF SUB-DRAINAGE AREAS = 175032.1
TOTAL FLOW IN = 712.00
TOTAL FLOW OUT = 427.07
MEAN MONTHLY FLOWS ANO OAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
4821A1
FLOW DAY
FLOW UAY
FLOW
4821A2
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
7b
75
75
75
75
75
75
92.03
76.46
130.26
30.30
<*6.72
98.54
33.13
108.17
144.70
72.49
63.43
31.43
28.60
46.72
62.01
16.99
31.71
54.09
22.34
59.47
59.75
37.66
56.9.?
15.15
8
6
8
9
8
8
8
3
10
14
7
9
7
7
7
7
7
7
7
7
5
7
7
7
0.0
0.0
243.52
0.0
33.13
120.63
52.67
144.70 19
197.37 28
60.88
52.95
0.0
0.0
0.0
0.0
79,29
41.63
70.79
33.41
34.26 21
47.01 19
69.66
69.66
0.0
0.0
151.50
0.0
71.36
MEAN
<«821A1
4821A2
4821A3
4H21B1
4821C1
482101
4821E1
<»821F1
48212Z
93991.1
31041.1
81092.8
23.3
63.5
846.9
100.0
11473.7
391.1
3<».SS
21.24
21. 2".
O.Ot
0.1U
2.52
0.19
8.10
2.97
21.24
8.78
8.78
0.03
0.09
1.13
0.15
8.83
3.23
33.98
23.50
23.50
0.02
0.07
2.44
0.13
7.56
2.78
24.92
15.57
15.57
0.08
0.24
1.90
0.42
10.93
3.99
87.22
60.60
60.60
0.15
0.40
4.53
0.62
15.74
5.78
33.41
28.88
28.88
0.05
0.15
1.44
0.23
14.55
5.32
2«.07
21.80
21.80
0.02
0.07
0.42
0.11
5.49
2.01
28.88
16.99
16.99
0.01
0.03
0.42
0.05
7.50
2.75
39.36
18.97
18.97
0.06
0.16
0.54
0.26
12.20
4.47
56.07
22.94
22.94
0.05
0.14
2.52
0.22
13.59
4.98
29.73
16.41
18.41
0.02
0.06
1.10
0.09
5.83
2.12
14.44
6.60
6.80
0.01
0.04
0.91
0.07
5.69
2.10
35.32
22.17
22.17
0.05
0.13
1.67
0.21
9.66
3.54
-------
LAKE CODE 4421
TRIBUTARY FLOW INFORMATION FOR TEAAS
LYNDUN U. JOHNSON LAKE
02/11/76
MEAN MONTHLY FLO»S AND DAILY FLOWS
TRIBUTARY MONTH YEAH MEAN FLOW DAY
4821 A3
4821C1
4S21D1
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
»
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
S
6
7
8
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
75
75
75
75
75
75
75
28.60
46.72
62.01
16.99
31.71
54.09
22.34
59.47
59.75
37.66
56.92
15.15
0.08
0.17
0.24
0.04
0.08
0.51
0.05
0.03
0.40
0.13
0.04
0.01
0.13
0.25
0.34
0.04
0.13
0.74
0.13
0.08
1.08
0.37
0.11
O.C1
2.01
3.91
5.52
1.39
2.01
11.84
1.76
1.13
14.44
4.73
1.44
0.16
7
7
7
7
7
7
5
7
7
7
8
6
8
7
a
8
8
3
10
14
7
7
8
6
8
7
8
8
8
3
10
14
7
7
8
6
8
7
8
a
8
3
10
14
7
9
FLOW DAY
0.0
79.29
41.63
70.79
33.41
34.26
47.01
69.66
69.66
0.0
0.06
0.01
0.71
0.04
0.08
0.40
0.05
0.02
0.96
0.11
0.03
0.01
0.09
0.02
3.93
0.05
0.12
0.59
0.15
0.06
2.66
0.31
0.09
0.03
1.44
0.45
23.50
1.19
1.81
9.46
1.98
0.76
35.40
4.u2
1.16
0.45
21
19
19
28
19
28
19
28
FLOW DAY
0.0
71.36
0.03
0.11
0.07
0.31
0.91
4.13
FLOW
-------
LA
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STOP.ET RETRIEVAL DATE 76/02/11
4*2101
30 33 19.0 098 20 26.0
LY.NUON B JOHNSON LAKE
48053 TEXAS
DATE
FROM
TO
74/03/13
74/05/21
74/08/16
74/11/04
TIME
OF
DAY
16
16
16
16
16
16
15
15
15
15
15
15
15
15
11
11
11
11
11
11
16
16
16
16
16
16
10
10
10
10
10
10
30
30
30
30
30
30
30
30
30
30
30
30
30
30
00
00
00
00
00
00
DEPTH
FEET
0000
0005
0015
0035
0060
0078
0000
0005
0015
0030
0040
0050
0060
0076
0000
0020
0037
0046
0060
0080
0000
0005
0020
OCJ5
0055
0076
00010
WATER
TEMM
CENT
18.0
17. to
17.2
15.1
12.4
12.3
?7.5
26.2
24.9
23.9
21.4
20.2
18.3
15.1
28.3
27.6
27.0
26.3
19.0
16.8
20.9
20.9
20.9
20.9
20.9
20.4
11EPALES
00300
DO
MG/L
9.2
9.0
6.0
e.o
5.0
8.0
1.2
1.6
1.0
0.2
0.5
7.2
6.6
3.2
0.1
0.2
0.2
7.6
7.4
7.2
7.2
7.4
6.6
00077 00094
TRANSP CNDuCTVY
SECCHI FIELD
INCHES MlCrtOMHO
36 409
404
398
379
359
361
35 439
420
411
389
330
316
433
423
110 545
535
532
508
374
457
24 501
501
501
501
500
545
3
00400
HH
su
8.50
8.40
8.30
8.20
R.10
7.85
8.70
8.65
7.95
7.80
7.73
7.70
7.65
7.70
8.50
8.30
8.00
7.70
7.90
7.30
7.97
7.96
7.95
7.93
7.90
7.70
00410
T ALK
CAC03
MG/L
159
157
157
156
156
158
131
131
127
115
107
107
150
161
139
136
136
136
119
89
211
0083
00610
NH3-N
TOTAL
MG/L
0.020
0.030
0.030
0.040
0.040
0.050
0.050
0.040
0.050
0.040
0.070
0.040
0.060
0.190
0.030
0.030
0.030
0.030
0.110
0.240
1202
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.400
0.400
0.400
0.300
0.400
0.400
0.900
0.500
0.400
0.300
0.500
0.400
0.400
0.500
0.400
0.400
0.400
0.300
0.600
0.800
00630
N02VN03
N-TOTAL
MG/L
0.520
0.550
0.560
0.600
0.630
0.650
0.250
0.240
0.370
0.450
0.520
0.500
0.560
0.320
0.290
0.290
0.290
0.290
0.280
0.080
00671
PrtOS-DIS
ORTrtO
MG/L P
0.005
0.005
0.007
0.006
0.012
0.019
0.011
0.020
0.019
0.025
0.021
0.021
0.014
0.012
0.019
0.022
0.020
0.019
0.013
0.020
-------
STORET RETRIEVAL DATE ?fi/C?/il
482101
30 33 19.0 098 20 28.0
LVNOON 8 JOHNSON LAKE
48053 TEXAS
11EPALES
3
2111202
0083 FEET
DEPTn
DATE
FROM
TO
74/03/13
7<*/05/21
7«./08/16
74/11/04
00665 32217 00031
TIME DEPTH PHOS-TOT CHLHPHfL INCOT LT
OF A REMNING
UAY FEET
Ib
Ib
16
16
16
16
15
15
15
15
15
15
15
15
11
16
16
16
16
16
16
16
10
10
10
10
10
10
30
30
30
30
30
30
30
30
30
00
00
00
00
00
00
00
0000
0005
0015
0035
0060
0078
0000
0005
0015
0030
0040
0050
0060
0076
0000
0000
0003
0005
0020
0035
0055
0076
MG/L >> UG/L PERCENT
0
0
0
U
0
C
0
0
0
0
0
0
0
0
0
c
0
0
0
0
.020 6.9
.Old
.028
.020
.023
.060
.0<*7 5.2
.046
.040
.039
.064
.053
.045
.035
3.7
.042 5.1
1.0
.038
.046
.042
.111
.052
-------
STORET RETRIEVAL DATE 76/02/11
462102
30 3* 12.0 096 24 34.0
LYNDON 8 jOriNSON LAKE
48299 TEXAS
DATE
FROM
TO
74/03/13
7^/05/21
74/08/16
74/11/04
TIME
OF
DAY
16
16
16
16
16
16
16
16
16
16
11
11
11
11
15
15
15
15
15
S5
?5
55
55
55
00
00
00
00
00
00
00
00
00
25
25
25
25
25
DEPTH
FEET
0000
0035
0015
0030
0043
0000
0005
0015
0035
0046
0000
0023
0033
0045
0000
0005
0015
0025
0047
00010
WATER
TEMP
CENT
19.9
19.8
19.2
16.1
13.6
28.9
26.6
26.0
20.7
19.6
28.9
28.3
27.4
26.6
20.7
20.7
20.7
20.7
20.7
00300
DO
MG/L
9.0
8.6
8.4
7.6
0.1
0.1
0.1
0.2
7.8
6.8
1.8
1.4
7.8
7. -8
7.8
7.8
7.8
00077
TWANSP
SECCHI
INCHES
36
28
100
24
00094
CNDUCTVY
FIELD
MICROMHO
454
458
446
396
326
460
448
443
275
282
548
548
543
534
520
519
519
518
525
1 1E^
3
00400
PH
su
8.50
8.45
8.40
8.10
8.00
8.80
8.60
8.15
7.90
7.90
8.60
8.40
7.90
7.70
7.97
7.98
7.97
7.97
7.96
00410
T ALK
CAC03
MG/L
159
160
159
156
157
132
130
130
98
100
125
124
125
136
134
211
0048
00610
NH3-N
TOTAL
M(j/L
0.030
0.020
0.030
0.040
0.060
0.040
0.040
0.060
0.120
0.130
0.030
0.020
0.020
0.030
0.040
1202
FEET OEP
00625
TOT KJEL
N
MG/L
0.700
0.500
0.400
0.400
0.500
0.700
0.400
0.300
0.500
0.600
0.700
0.400
0.500
0.300
0.400
TM
00630
\02iN03
(•--TOTAL
MG/L
0.430
0.440
0.440
0.570
0.590
0.160
0.180
0.250
0.480
0.500
0.260
0.260
0.260
0.270
0.270
OOt.71
PHOS-DIS
OKTHO
MG/L P
0.006
0.005
0.008
0.007
0.009
O.OOb
0.007
0.010
0.028
0.028
0.015
0.014
0.021
0.018
0.026
-------
STOREY RETRIEVAL DATE 76/02/11
482102
30 34 12.C 098 24 34.0
LYNDO.N d JOHNSON LAKE
43299 TEAAS
11EPALES
3
DATE
FROM
TO
74/03/13
74/05/21
74/08/16
74/11/04
TIME DEPTH
OF
OAY FEET
16 55 0000
16 55 0005
16 55 001S
16 55 0030
16 55 0043
16 00 0000
16 CO 0005
16 00 0015
16 00 0035
16 00 0046
11 00 0000
11 00 0014
11 00 0023
15 25 0000
15 ?5 0004
15 25 0005
15 25 0015
15 25 0025
15 ?5 0047
00665
PHOS-TOT
MG/L P
U.013
O.C22
0.024
0.024
0.033
0.042
0.042
0.040
0.133
0.126
0.049
0.043
0.045
0.039
0.048
32217 00031
CHLSPHYL INCOT LT
A PENNING
OG/L PERCENT
b.2
32.9
7.0
5.0
1.0
2.5
1.0
2111202
0048 FEET
OEPTH
-------
5TORET RETRIEVAL OAT£ 76/02/11
482103
30 39 17.0 098 25 43.0
LfNDON 8 JOHNSON LAKE
48053 TEXAS
DATE
FROM
TO
74/03/14
74/05/21
74/08/16
74/11/04
TIME
OF
DAY
09 35
09 35
09 35
09 35
16 20
16 20
16 20
16 20
10 30
10 30
10 30
14 SO
14 50
14 50
14 50
DEPTH
FEET
0000
0005
0015
0021
0000
OOOb
0015
0022
0000
0015
0023
0000
0005
0015
0022
00010
i«ATEK
TEMP
CENT
20.3
20.3
20.1
18.3
29.3
28.1
26.6
26.5
29.6
29.3
28.2
20.5
20.5
20.5
20.5
11EPALES
00300
DO
MG/L
9.0
9.0
6.6
7.6
4.0
4.4
6.6
6.6
4.2
8.2
6.6
8.2
8.2
00077
TRiNSP
SECCHI
INCHES
46
34
13
36
C0094
CNOUCTVY
FIELD
M1CKGMHO
466
466
466
455
442
430
442
451
377
416
427
558
558
558
557
3
00400
PH
su
8.50
8.50
8.45
7.90
8.80
8.55
7.90
8.00
8.40
8.40
8.00
7.96
7.95
7.93
7.92
00410
T ALK
CAC03
MG/L
167
167
168
165
127
127
133
133
125
127
126
126
2111202
0026
00610
NH3-N
TOTAL
MG/L
0.020
0.020K
0.020
0.100
0.060
0.060
0.140
0.140
0.030
0.020
0.020K
0.020K
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.400
0.300
0.300
0.400
0.700
0.700
0.600
0.500
0.300
0.200
0.400
0.300
00630
N02*.N03
N-TOTAL
MG/L
0.230
0.230
0.240
0.370
0.370
0.370
0.350
0.350
0.240
0.240
0.240
0.240
00671
PHOS-DIS
ORTHO
MG/L P
0.006
0.004
0.004
0.006
0.007
0.007
0.010
0.011
0.019
0.015
0.022
0.020
K VALUE KNOWN TO d£
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/02/11
462103
30 39 17.0 098 25 43.0
LYNDON B JOHNSON LAKE
48053 TEAAS
DATE
FROM
TO
74/03/14
74/05/21
74/08/16
74/11/04
0066b 32217 00031
TIME DEPTH PHOS-TOT CnLPPHYL INCDT LT
OF A REMNlNo
OAY FEET
09 35 0000
09 35 0005
09 35 0015
09 35 0021
16 ?0 0000
16 ?0 0005
16 20 0015
16 20 0022
10 30 0000
14 50 0000
14 50 0004
14 SO 0005
14 50 0015
14 50 0022
HG/L P UG/L PERCENT
0.016 6.4
0.018
O.Ola
0.031
0.0<«6 12.9
0.046
U.089
0.086
6.5
0.0<«4 2.9
1.0
0.039
0.046
0.043
11EPALE.S
3
2111202
0026 FEET
DEPTH
-------
APPENDIX E
TRIBUTARY DATA
-------
STORE! RETRIEVAL DATE 76/03/10
DATE TIME DEPTH '\i02&N03
FROM OF
TO OAr FEET
7^/10/06
74/11/Od
75/01/08
75/02/OS
75/04/03
75/05/10
75/05/26
75/06/14
11
13
12
13
13
It
14
12
00
30
55
05
00
00
10
35
4821A1
30 33 22.0 096 20 15.0 4
COLORADO SUE*
4d455 7.5 MARBLE FALLS
0/LYVJON D JOHNSON LAKE
TURBINE EAriAUST ALVIN «IRTZ POwE»nOUSE
11EPALF.5 2111204
0000 FEET OtPTn CLASS 00
0630
'&N03
UTAL
iO/L
0.200
0.264
0.352
0.336
&.350
0.430
0.375
0.360
00625
TOT KJEL
N
MG/L
0.475
0.800
0.550
0.700
0.562
0.450
0.450
1.200
00610
NH3-N
TOTAL
MG/L
0.035
0.020
0.032
0.080
0.100
0.030
0.050
0.020
00671
PriOS-OIS
OPTHO
MG/L P
0.025
0.015
0.005K
0.016
0.005
0.005
0.025
0.005
00665
PHOS-TOT
MG/L P
0.025
0.035
0.030
0.030
0.020
0.010K
0.050
0.030
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOHET RETRIEVAL DATE 7i/0j/10
4821A2
30 43 52.0 098 23 07.0 4
COLORADO RIVER
48 7.5 KINGSLAND
T/LYNOGN a JOrlNSON LAKE
TURBINE EAI-AU5T KOr INKS 0AM
11EPALES 2111204
0000 FEET DEPTH CLASS 00
OATE
FriOM
TO
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
OC63i. 00625
TIME DEPTH NC2---.C: TOT KJEL
OF r.-TjTtt N
OAY FEET
12
10
11
11
10
10
10
10
10
11
09
11
12
11
05
55
00
10
05
55
40
««5
50
28
40
15
10
35
MG/L
0
0
0
c
0
•J
0
0
0
0
0
0
0
0
.200
.0-»t
.216
.336
.02
,4nb
.450
.550
.'•40
.540
.620
.560
.420
.035
MG/L
0.
0.
0.
0.
0.
0.
0.
1.
0.
0.
0.
0.
0.
0.
600
600
500
650
900
300
400
500
950
450
375
350
700
400
00610 00671 00665
NH3-s PHOS-GIS PHOS-TOT
TOTAL GRTriO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
c.
0.
0.
0.
060
052
055
104
072
032
055
025
032
027
010
020
050
040
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
.035
.030
.015
.010
.006
.005
.005K
.005*
.010
.005K
.005K
.005K
.015
MG/L P
0.065
0.030
0.020
0.030
0.030
0.020
0.020
0.020
0.010
0.010K
0.010K
C.030
O.C30
K VALUE KNOWN TO 6E
LESS THAN INDICATED
-------
sio^er RETRIEVAL GATE 7b/o3/io
DATE TIME DEPTH i-,02
FROM OF
TO DAY FEET
74/11/07
74/12/07
75/01/07
75/02/07
75/OJ/07
75/04/07
75/04/21
75/OS/05
75/05/19
75/06/07
75/07/07
75/08/07
09 ?5
09 ?0
09 25
09 00
08 50
09 00
09 10
09 35
08 10
09 05
10 35
09 26
4d21A3
30 42 15.0 098 24 45.0 4
COLORADO RIVER
48 V.b KINGSL.ANO
T/L8J LAK-
END DIRT rfO l.b Ml S OF JCT * FM 2342
11EPALES 2111204
0000 FEET DE°Th CLASS 00
0630
I6M03
GTAL
IG/L
0.200
0.352
0.416
0.448
O.^SO
0.520
0.510
0.560
0.610
0.530
0.280
0.005
00625
TOT KJEL
N
MG/L
0.500
0.600
0.300
0.300
0.350
0.975
0.387
0.450
0.350
0.350
0.650
0.350
00610
NH3-N
TOTAL
MG/L
0.020
0.032K
0.032
0.024
0.030
0.030
0.015
0.025
0.010
C.030
0.015
C.020
00671
PHOS-DIS
OKTHO
MG/L P
0.015
0.016K
0.005
o.ooa
0.005K
0.005K
0.005K
0.005
0.005K
0.005
0.005K
0.005
00665
PHOS-TOT
MG/L P
0.020
0.016K
0.030
0.020
0.020
0.030
C.02b
0.010K
0.010K
C.020
0.030
0.030
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOhiET PETP.IEYAL DATE 76/03/10
DATE
TIME DEPTH
OF
TO DAY FEET
74/09/08
74/10/06
74/11/08
74/12/07
75/01/08
75/02/08
75/03/08
75/04/03
75/04/19
75/05/10
75/Ob/28
75/06/14
75/07/07
75/06/07
14 15
14 30
11 26
10 25
11 10
11 10
09 30
11 15
10 00
10 35
10 55
09 55
10 00
10 40
30 30 2a.O 098 22 02.0 4
SLicKrcoCK CREEK
n8 7.5 MARBLE FALLS
T/LYNOON d JOHNSON LAKE
2NO*T KD 21<«7 BRDG 3 MI NE JCT w
11EPALES 211120*
0000 FE£T DECTH CLASS 00
71
0630
fciMOJ
OTAL
IG/L
0.024
0.064
0.200
C.040
C.064
C.lfaO
3.020
0.025
0.035
0.105
0.035
0.025
0.040
0.020
00625
TOT KJEL
N
MG/L
0.300
0.300
0.300
0.200
0.100
0.200
0.250
1.650
0.250
2.400
0.400
0.850
0.300
0.250
00610
Nh3-N
TOTAL
MG/L
0.025
0.040
0.025
0.016
1.120
0.024
0.015
0.050
0.025
0.040
0.015
0.015
0.017
0.005
00671
PnOS-OIS
(WHO
MG/L P
0.005
0.005K
0.010
0.008K
0.005K
O.OOOK
0.005K
0.005K
0.005
0.005
0.005K
0.005K
0.010
00665
PHOS-TOT
MG/L P
0.015
0.010K
0.010
0.010K
0.010
0.010K
0.010K
0.010K
0.010K
0.010
0.010
0.010
0.020
K VALUE KNOrfN TO BE
LESS THAN INDICATED
-------
STOHEf RETRIEVAL DATE 76/03/10
DATE
FROM
TO
74/09/08
74/10/06
74/11/08
74/12/07
75/01/08
75/02/OS
75/03/08
75/04/OJ
75/04/19
75/05/10
75/05/28
75/06/14
75/07/07
75/08/07
TIME 1
OF
DAY 1
14 00
14 05
11 40
10 40
11 20
11 30
09 45
11 30
10 15
11 10
11 10
10 20
10 10
10 ^0
FEET
4821C1
30 32 15.0 098 26 40.0 4
MLNUT Crc£E*
48 " 7 .-5 GUNMAN MTN
T/LYNOON 3 JOHNSON LAKE
HWY 71 6*06 0.2 MI NN JCT * HrfY 962
llEPALtS 2111204
0000 FEtT OtPTH CLASS 00
0630
'iN03
OTAL
IG/L
0.026
0.024
0.046
0.056
0.064
0.128
0.110
0.120
3.100
0.160
0.030
0.065
0.090
0.055
00625
TOT KJEL
N
MG/L
0.300
0.100
0.300
0.200
0.100
0.300
0.350
0.950
0.600
2.000
1.300
0.250
0.250
0.200
00610
NH3-N
TOTAL
MG/L
0.025
0.025
0.025
0.016
0.024
o.ooa
0.065
0.040
0.020
0.125
0.025
C.005
0.030
0.005
00671
PHOS-OIS
OPTHO
MG/L P
0.005K
0.005K
0.025
0.008K
0.005K
C.008K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005K
0.0.05K
00665
PHOS-TOT
MG/L P
0.015
0.010K
0.030
0.010K
0.010K
0.010K
0.010K
0.010K
0.01 OK
0.010K
0.010K
0.020
0.020
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOKET KETHIEVAL DATE 76/03/10
DATE TIME DEPTH N02&N03
F»OM OF
TO DAY FEET
74/09/08
74/10/06
74/1 1/08
74/12/07
75/01/08
75/02/08
75/03/08
75/04/03
75/04/19
75/05/10
75/05/28
75/06/14
75/07/07
75/08/09
13
13
11
11
11
11
10
11
10
11
11
10
10
11
45
40
55
1?
35
40
10
40
25
20
20
30
23
05
482101
30 33 30.0 098 28 22.0 4
iANOY C2EE^
43 7.5 DUNMAN MTiN
T/LYNOON D JOnNSUN LAKE
H*Y 71 BRUG 2.5 MI N* JCT W H«iY 962
llEPALtS 2111204
0000 FELT DEPTH CLASS 00
0630
I&N03
OTAL
iG/L
0.0^0
0.024
0.136
C.064
0.136
0.2^8
0.065
0.03S
0.030
0.180
0.210
0.200
0.345
0.050
00625
TOT KJEL
N
MG/L
0.200
0.200
0.400
0.300
0.200
0.200
0.150
0.150
0.050
1.200
0.250
o.eoo
0.100
0.175
00610
NH3-N
TOTAL
MG/L
0.015
0.010
C.020
0.016
0.016
0.040
0.010
0.020
0.005*
0.110
0.015
0.010
0.005
0.005K
00671
PriCS-i)IS
ORFHO
MG/L P
0.025
C.020
0.045
C.016
0.010
0.032
0.020
0.015
0.010
0.025
0.025
0.025
0.015
00665
PHOS-TOT
MG/L P
0.030
0.020
0.090
0.020
0.020
0.032
0.020
0.020
0.010
0.020
0.030
0.030
0.030
K VALUE KNOrfN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/03/10
4821£1
30 39 20.0 098 30 45.0 4
HONEY CREEK
"3 7.5 Ca° MTN
T/LYNOON b JOHNSON LAKE '
UNIMP 30 XING 1.5 MI S OF GAINESVILLE
11EPALE5 21112i>4
COOO FEET DEPTH CLASS 00
DATE
FROM
TO
74/09/08
74/10/06
74/11/08
74/12/07
75/01/08
75/03/08
75/03/08
75/04/03
7S/04/19
75/05/10
75/05/28
75/06/14
75/07/07
75/08/09
00630 00625
TIME DEPTH N02^N03 TOT KJEL
OF N-TOTAL M
DAY FEET
12
13
12
11
12
12
10
12
11
11
11
11
10
11
00
00
31
45
05
10
40
15
03
50
55
00
47
30
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
032
032
080
112
144
200
125
105
055
190
015
055
070
025
MG/L
0.
0.
0.
0.
G.
0.
0.
2.
0.
1.
0.
1.
0.
0.
200
100
300
200
100
100K
125
100
200
600
800
600
100
200
00610 00671 00665
NH3-N PHOS-OIS PHOS-TOT
TOTAL OWTHO
MG/L
3.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
007
010
025
056
C16
008K
030
070
025
065
040
020
010
005K
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
005K
005K
020
008K
005K
008K
005K
005K
005K
005K
005K
005K
005K
MG/L P
0.005
0.010K
0.020
0.010K
0.010K
0.010K
0.010K
0.010K
0.010K
0.01UK
0.010K
0.020
0.010K
K VALUE KNOtaN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/03/10
4621F1
30 40 52.0 09d 29 00.0 4
LiAMO «IVE^
<-8 7.5 MNGSLANu
T/tr'N'OON 6 JOHNSON LAKE
2-NORY RO dSDG 1.5 Ml tf JCT * RD 1431
11EPALE5 2111204
0000 FEET DEPTH CLASS 00
DATE TIME DEPTH N02&
FROM OF
TO DAY FF.ET
74/09/08
74/10/06
74/11/08
74/12/07
75/01/08
75/02/06
75/03/08
75/04/03
75/04/19
75/05/10
75/05/28
75/06/14
75/07/07
75/08/09
13
12
13
12
12
12
11
12
11
12
12
11
11
11
1C
40
00
25
25
30
20
35
20
35
15
25
00
55
0630
:vN03
OTAL
IG/L
1.26J
1.160
0.29b
0.750
0.710
0.46<»
0.280
0.190
0.345
0.350
0.310
0.640
0.140
0.005
00625
TOT KJEL
N
MG/L
0.500
1.600
0.400
0.300
0.400
0.4QO
0.150
0.350
0.350
2.600
1.600
2.000
0.500
0.200
00610
NH3-N
.TOTAL
HG/L
0.010
0.010
0.035
0.048
0.024
0.016
0.025
0.025
0.015
0.060
o.oeo
0.030
0.010
0.005K
00671
PH05-OIS
OPTHO
MG/L P
0.005K
0.005K
0.035
0.008K
0.005K
o.ooa
O.OObK
0.005K
0.005K
0.015
0.020
0.010
0.005K
O.OOSK
00665
PHOS-TOT
MG/L P
0.020
0.030
0.120
0.010K
0.010K
0.010
0.010K
0.010K
0.010
0.0 60
o.oso
0.030
0.010
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL OAT£ 76/03/10
DATE TIME DEPTH N02«.N03
FROM OF
TO DAY FEET
74/09/07
74/10/06
74/11/07
74/13/07
75/01/07
75/03/07
75/03/07
75/04/07
75/04/21
75/05/05
75/05/19
75/06/07
75/07/07
75/08/09
09 30
09 35
09 35
09 35
09 40
09 10
09 05
09 10
09 20
09 48
08 ?0
09 15
10 50
09 46
4821H1
30 43 08.0 098 22 55.0 4
PETEKS CStEK
48 7.5 KINGSLANU
T/LYNOON 6 JOHNSON LAKE
2NDRY RD 2342 BROG 0.1 MI 5 JCT HOOVER
11EPALES 211120H
oooo FEET OEPTH CLASS oo
0630
'J.N03
OTAL
IG/L
0.168
0.280
0.088
0.224
0.248
0.164
0.130
0.220
0.220
0.175
0.130
0.150
C.270
0.190
00625
TOT KJEL
N
MG/L
0.200
0.200
0.400
0.200
0.100
0.100K
0.200
0.550
0.100
0.450
0.750
0.350
0.650
0.250
00610
NH3-N
TOTAL
MG/L
0.015
0.010
0.020
0.040
0.032
0.008K
0.015
0.015
0.015
0.015
0.113
0.040
0.035
0.005K
00671
PHOS-DIS
ORTHO
MG/L P
0.005
O.OOS
0.010
0.008K
0.005K
0.008K
0.005K
0.005K
O.OOSK
0.005
0.005K
0.005K
G.005K
0.005K
00665
PhOS-TOT
MG/L P
0.005K
0.010K
0.010
0.010K
0.010K
0.010K
O.OlOtv
0.030
0.010K
0.010K
0.010K
O.UlOK
0.020
0.010K
K VALUE KNOWN TO BE
LESS THAN INDICATED
------- |