U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE LEWISVILLE (GARZA-LITTLE ELM)
DENTON COUNTY
TEXAS
EPA REGION VI
' WORKING PAPER No, 650
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
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REPORT
ON
LAKE LEWISVILLE (GARZA-LITTLE ELJD
DENTON COUNTY
TEXAS
EPA REGION VI
WORKING PAPER No, 650
WITH THE COOPERATION OF THE
TEXAS WATER QUALITY BOARD
AND THE
TEXAS NATIONAL GUARD
MARCH, 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 12
V. Literature Reviewed 18
VI. Appendices 19
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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
Themathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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m
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
Lewisville (Garza-Little Elm)
Livingston
COUNTY
Val Verde
Bastrop
Bell, Coryell '
Bexar
Brown
Burnet, Llano
Harrison, Marion, TX;
Caddo Parish, LA
Bexar
Coma!
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
Somerville
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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Map Location
LAKE LEWISVILLE
^Tributary Sampling Site
X Lake Sampling Site
• Sewage Treatment Facility
12 drainage Area Boundary
L3nd Subject to Inurica'.ion
) i 10 15 »
I 1 .—I 1 J
Scale
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LAKE LEWISVILLE
STORE! NO. 4815
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake Lewisville 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 water body.
Lake Lewisville ranked 34th in overall trophic quality when
the 39 Texas reservoirs sampled in 1974 were compared using a
combination of six parameters*. Twenty-five of the reservoirs
had less median total phosphorus, 29 had less and two had the
same median dissolved phosphorus, 33 had less median inorganic
nitrogen, 25 had less mean chlorophyll a_, and 32 had greater
mean Secchi disc transparency. Marked depression of dissolved
oxygen with depth occurred at station 1 in August (0.4 mg/1 at
13.7 meters).
Survey limnologists did not observe any phytoplankton blooms
or widespread macrophytes.
Excess available phosphorus levels in the Elm Fork embayment
suggest potential problems (Anonymous, 1974[?]).
* See Appendix A.
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B. Rate-Limiting Nutrient:
The algal assay results indicate that primary productivity
was limited by phosphorus at the time of sampling (03/11/74).
The lake data indicate phosphorus was limiting in March and
May, and nitrogen was limiting in October. However, the mean
Secchi disc transparency of less than one meter indicates primary
productivity may be light-limited at times.
C. Nutrient Controllability:
1. Point sources—During the sampling year, a little over
29% of the total phosphorus load is estimated to have been con-
tributed by point sources. The City of Denton wastewater treat-
ment plant was the largest source with 24.2% of the total.
The present loading of 1.25 g/m2/yr is almost 2.5 times that
proposed by Vollenweider (Vollenweider and Dillon, 1974) as a
eutrophic loading (see page 17). Although elimination of all
point-source phosphorus loads would only reduce the loading to
0.88 g/m2/yr, if Vollenweider's eutrophic level is applicable to
Texas reservoirs, phosphorus control could reduce the potential
for the occurrence of nuisance conditions since it appears that
suspended materials (as measured by the Secchi disc) might also
be limiting primary productivity.
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2. Non-point sources—The gaged tributaries were estimated
to have contributed about 55% of the total phosphorus load
reaching Lake Lewisville. The Elm Fork Trinity River contributed
29.7%; the Isle Du Bois Creek, 13.6%; and the other two tribu-
taries collectively contributed 12.0%.
The phosphorus export rates (page 16) ranged from 7 to 45 kg
P/km2/yr with the Elm Fork Trinity River and Little Elm Creek
having the highest values (35 and 45 kg P/km2/yr, respectively).
Both tributaries may have been influenced by point sources with-
in and outside the 40-kilometer limit of the Survey*.
* See Working Paper No. 175, "...Survey Methods, 1973-1976".
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4
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1
A. Morphometry :
1. Surface area: 93.93 kilometers2.
2. Mean depth: 6.0 meters.
3. Maximum depth: 20.4 meters.
4. Volume: 564.464 x 106 m3.
5. Mean hydraulic retention time: 0.85 years (based on 1972-1976
mean outflow).
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Name
Elm Fork Trinity River
Clear Creek
Isle Du Bois Creek
! . Little Elm Creek
Minor tributaries &
immediate drainage -
Totals
Drainage
area (km2)*
986.8
764.0
688.9
195.5
1,570.0
4,205.2
Mean flow
(m3/sec)*
4.080
2.100
3.520
1.177
6.630
17.507
2. Outlets -
Diversion by City of Denton**
Elm Fork Trinity River
Totals
C. Precipitation****:
1. Year of sampling: 110.2 centimeters.
2. Mean annual: 84.6 centimeters.
4,299.4
4,299.4***
0.200
17.307
17.507***
t Table of metric conversions—Appendix B.
tt At conservation pool level; Barrows, 1977.
* For limits of accuracy, see Working Paper No. 175.
** Jones, 1976 (see page 12).
*** Includes area of lake; outflow adjusted to equal sum of inflows.
**** See Working Paper No. 175.
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III. WATER QUALITY SUMMARY
Lake Lewisvilie was sampled four times in 1974 by means of a pontoon-
equipped Huey helicopter. Samples for physical and chemical parameters
were collected from two or more depths at six stations on the lake (five
in March; 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
visit, two 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 16.2 meters at station 1, 9.1 meters at station 2, 10.1 meters at
station 3, 8.8 meters at station 4, 7.6 meters at station 5, and 2.1 meters
at station 6.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
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A. SUMMARY OF PHYSICAL AND CHEMICAL CHARACTERS!ICS FOR GARZA LITTLE ELM RESERVO
STORET CODE 4815
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)
INORfi N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
1ST SAMPLING ( 3/11/74)
5 SITES
RANGE MEAN MEDIAN
14.2 - 18.6 16.4 16.5
7.4 - 10.8 9.0 9.0
259. - 322. 283. 285.
7.9 - 8.2 8.1 8.1
107. - 131. 113. 113.
0.020 - 0.096 0.0*4 0.042
0.007 - 0.051 0.020 0.019
0.150 - 0.360 0.304 0.330
0.050 - 0.140 0.072 0.070
0.200 - 0.500 0.300 0.300
0.210 - 0.490 0.376 0.400
0.360 - 0.85C 0.604 0.630
1.2 - 4.0 2.5 2.4
0.5 - 0.6 0.6 0.6
2ND SAMPLING ( 5/17/74)
6 SITES
RANGE
20.1 - 27.0
5.6 -
7.6
335. - 470.
7.6 - 8.4
107. - 118.
0.026 - 0.304
0.004 - 0.081
MEAN MEDIAN
25.0 25.5
7.0
384.
8.2
113.
0.050
6.9
394.
8.2
113.
0.084
0.023 0.018
0.300 - 0.860 0.537 0.490
0.020 - 0.070 0.044 0.040
0.470 0.400
0.580 0.530
0.300 - 1.100
0.350 - 0.910
0.720 - T.^40
19.3 - 32.9
0.3 - 0.9
1.006 0.940
25.5 25.0
0.6 0.5
3RD SAMPLING ( 8/12/74)
6 SITES .
KANGE MEAN MEDIAN
25.0 - 27.4 26.3 26.2
0.4 - 8.0 6.2 6.7
339. - 375. 357. 355.
7.7 - 8.7 8.4 8.4
116. - 134. 120. 120.
0.021 - 0.126 0.049 0.036
0.004 - 0.027 0.009 0.008
0.020 - 0.060 0.03ri 0.035
0.040 - 0.330 0.073 0.055
0.200 - 0.800 0.417 0.300
0.060 - 0.360 0.112 0.100
0.220 - 0.860 0.455 0.350
4.4 - 25.8 14.3 13.7
0.3- 1.8 0.9 0.9
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A. SUMMARY OF PHYSICAL AND CHEMICAL CHARACTERISTICS FOR GARZA LITTLE ELM RESERVO
STOKET CODE
4TH SAMPLING (10/31/74)
PARAMETER
TEMP
OISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02»N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
6 SITES
RANGE MEAN
18.0
6.2
127.
7.5
60.
0.022
O.OOB
0.150
0.030
0.200
0.190
0.360
5.3
0.1
- 19.7
8.2
- 317.
7.9
- 114.
- 1.250
- 0.080
- 0.620
- 0.170
- 2.400
- 0.780
- 3.020
- 23.7
0.8
19.3
7.5
263.
7.9
96.
0.251
0.041
0.266
0.076
0.684
0.342
0.950
12.3
0.4
MEDIAN
19.4
7.4
307.
7.9
107.
0.091
0.039
0.240
0.050
0.500
0.300
0.660
12.0
0.3
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8
B. Biological characteristics:
1. Phytoplankton -
Sampli ng
Date
03/11/74
05/17-20/74
08/12/74
10/31/74
Dominant
Genera
1. Chroomonas sp.
2. Stephanodiscus sp.
3. Cryptomonas sp.
Total
1. Chroomonas sp.
2. Cryptomonas sp.
3. Ceratiurn sp.
4. Euglena sp.
5. Merismopedia sp.
Other genera
Total
1. Raphidiopsis sp.
2. Synedra sp.
3. Centric diatoms
4. Lyngbya sp.
5. Oscillatoria sp.
Other genera
Total
1. Cryptomonas sp.
2. Scenedesmus sp.
3. Chrysophytan cells
Total
Algal Units
per ml
87
65
43
195
308
154
51
51
51
206
821
1,627
757
568
530
530
605
4,617
30
30
30
90
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2. Chlorophyll a^ -
C.
Sampli ng
Date
03/11/74
05/17-20/74
Station
Number
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
a. Stations 1, 2, and 3 -
08/12/74
10/31/74
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
Inorganic N
Cone, (mg/1)
0.345
0.345
1.345
1.345
Chlorophyll a_
(yg/D
1.2
2.1
4.0
3.0
2.4
19.4
29.
31.
32.9
20.7
19.3
4.4
12.0
12.0
15.4
16.4
25.8
5.3
12.5
8.1
11.5
12.5
23.7
Maximum yield
(mg/1-dry wt.)
0.2
7.6
17.4
0.1
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<0.005
<0.055
<0.055
<0.005
0.405
0.405
1.405
1.405
0.1
8.0
17.8
0.1
10
b. Stations 4 and 5 -
Ortho P Inorganic N Maximum yield
Spike (mg/1) Cone, (mg/1) Cone, (mg/1) (mg/l-dry wt.)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
2. Discussion -
The control yields of the assay alga, Selenastrum capri-
cornutum, indicate that the potential primary productivity
of Lake Lewisville was low at the time the assay samples
were collected (03/11/74). In both assays, the increased
yields resulting from increased concentrations of orthophos-
phorus indicate that the lake was limited by phosphorus at
that time. Note that the addition of only nitrogen did not
result in increased yields.
The lake data indicate phosphorus limitation in March and
May (the mean inorganic nitrogen/orthophosphorus ratios were
14/1 or greater at all stations, with the exception of station
6 in May). The August and November lake data indicate a com-
bination of limiting nutrients. Following is a tabulation of
the mean inorganic nitrogen/orthophosphorus ratios for each of
the sampling stations and times with indicated limiting nutrient
in parentheses:
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11
Station 03/11/74 05/17/74 08/12/74 10/31/74
1
2
3
4
5
6
18/1 (P)
26/1 (P)
23/1 (P)
14/1 (P)
24/1 (P)
27/1 (P)
83/1 (P)
49/1 (P)
18/1 (P)
47/1 (P)
10/1 (N)
23/1 (P)
9/1 (N)
73/1 (P)
11/1 (N)
90/1 (P)
33/1 (P)
9/1 (N)
14/1 (P)
11/1 (N)
8/1 (N)
6/1 (N)
5/1 (N)
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12
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
calculated using mean concentrations and mean flows. 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 mean concen-
trations in Clear Creek at station C-l and the mean II flow.
The City of Denton reported a mean diversion of 0.20 m3/sec from
Lake Lewisville during the year (Jones, 1976). Nutrient loads in the
diverted water were estimated using the mean lake nutrient concentrations
at station three and the mean diversion flow.
The operators of the Celina, Frisco, Gunter, and Krum wastewater
treatment plants provided monthly effluent samples and corresponding
flow data. The communities of Denton, Lake Dallas, Lakewood Village,
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13
and Prosper did not participate, and nutrient loads were estimated at
1.134 kg P and 3.401 kg N/capita/year.
A. Waste Sources:
1. Known municipal -
Name
Celina*
Denton**
Fri sco
Cottonwood*
Stewart*
Gunter*
Krum*
Lake Dallas
M.U.D.**
Lakewood Village
Util. Co.**
Prosper***
Pop.
Served
1,272
25,000
2,200
800
640
700
1,350
80
200
Treatment
stab, pond
act. sludge
act. sludge
stab, pond
stab, pond
stab, pond
cont. aer.
ext. aer.
stab, pond
Mean Flow
(ms/d)
455.4
14,195.3
1,002.0
568.1
147.1
98.8
757.1
45.4
37.8
Receiving
Water
Little Elm Creek
Pecan Creek
Cottonwood Creek
Steward Creek
Little Elm Creek
Hickory Creek
Lake Lewisville
Lake Lewisville
Ditch to Doe
Branch
2. Known industrial - None
* Treatment plant questionnaires.
** Wyatt, 1976.
*** Anonymous, 1974(7).
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14
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yj; total
a. Tributaries (non-point load) -
Elm Fork Trinity River 34,740 29.7
Clear Creek 5,300 4.5
Isle Du Bois Creek 15,875 13.6
Little Elm Creek 8,755 7.5
b. Minor tributaries & immediate
drainage (non-point load) - 16,725 14.3
c. Known municipal STP's -
•Celina 1,215 1.0
Denton 28,350 24.2
Frisco
Cottonwood 1,595 1.4
Stewart 645 0.6
Gunter 275 0.2
Krum 135 0.1
Lake Dallas M.U.D. 1,530 1.3
Lakewood Village Util. Co. 90 <0.1
Prosper 225 0.2
d. Septic tanks - Unknown ?
e. Known industrial - None
f. Direct precipitation* - 1,650 1.4
Total 117,105 100.0
2. Outputs -
Lake outlets - City of Denton
diversion 1,505
Elm Fork Trinity
River 35.475
Total 36,980
3. Net annual P accumulation - 80,125 kg.
* See Working Paper No. 175.
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15
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source vr total
a. Tributaries (non-point load) -
Elm Fork Trinity River 286,410 27.4
Clear Creek 62,320 6.0
Isle Du Bois Creek 153,855 14.7
Little Elm Creek 70,425 6.7
b. Minor tributaries & immediate
drainage (non-point load) - 196,750 18.8
c. Known municipal STP's -
Celina 2,770 0.3
Denton 85,025 8.1
Frisco
Cottonwood 4,185 0.4
Stewart 76,860 7.3
Gunter 595 0.1
Krum 285 <0.1
Lake Dallas M.U.D. 4,590 0.4
Lakewood Village Util. Co. 270 <0.1
Prosper 680 0.1
d. Septic tanks - Unknown ?
e. Known industrial - None
f. Direct precipitation* - 101,710 9.7
Total 1,046,730 100.0
2. Outputs -
Lake outlets - City of Denton
diversion 6,530
Elm Fork Trinity
River 522,870
Total 529,400
3. Net annual N accumulation - 517,330 kg.
* See Working Paper No. 175.
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16
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Elm Fork Trinity River 35 290
Clear Creek 7 82
Isle Du Bois Creek 23 223
Little Elm Creek 45 360
E. Mean Nutrient Concentrations in Ungaged Streams:
Mean Total P Mean Total N
Tributary Cone, (mg/1) Cone, (mg/1)
Buck Creek (K-l) 0.239 1.952
Buck Creek (L-l) 0.207 1.735
Hickory Creek 0.145 1.689
Hog Creek 0.108 1.584
Range Creek (G-l) 0.208 1.640
Range Creek (0-1) 0.209 1.704
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17
F. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vcrllenweider (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/mVyr 1.25 0.85 11.1 5.5
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake Lewisville:
"Dangerous" (eutrophic loading) 0.52
"Permissible" (oligotrophic loading) 0.26
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18
V. LITERATURE REVIEWED
Anonymous, 1974(7). Intensive surface water monitoring survey for
segment 0823 (Lake Lewisville). Rept. No. IMS 5, TX Water Qua!.
Bd., Austin.
Barrows, David, 1977. Personal communication (morphometry and
hydraulic retention time). Canyon Proj. Off., Fort Worth Distr.,
Corps of Engrs., New Braunfels, TX.
Hendricks, Albert C., and J. K. G. Silvey, 1973. Nutrient ratio
variation in reservoir sediments. Jour. Water Poll. Contr. Fed.,
vol. 45, no. 3, pp. 490-497.
Jones, Earl, 1976. Personal communication (municipal withdrawal from
Lake Lewisville). Denton.
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 (sewage treatment plant
information). TX Water Qua!. Bd., Austin.
-------
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE
CODE
4601
4802
4803
4804
480S
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
LAKE NAME
AHISTAD LAKE
BASTROP LAKE
BEL TON RESERVOIR
BRAUNIG LAKE
BROWNMOOD LAKE
LAKE BUCHANAN
CADOO LAKE
CALAVERAS LAKE
CANYON RESERVOIR
LAKE COLORADO CITY
CORPUS CRIST I LAKE
DIVERSION LAKE
EAGLE MOUNTAIN LAKE
FT PHANTOM HILL LAKE
GARZA LITTLE ELM RESERVO
KEMP LAKE
HOUSTON LAKE
LAKE OF THE PINES
LAVON RESERVOIR
LIVINGSTON LAKE
LYNDON B JOHNSON LAKE
MEDINA LAKE
LAKE MEREDITH
PALESTINE LAKE
POSSUM KINGDOM RESERVOIR
SAN ANGELO RESERVOIR
SAM RAYBURN RESERVOIR
E V SPENCE RESERVOIR
MEDIAN
TOTAL P
0
0
0
0
0
0
0
0
;013
.0??
.016
.134
.027
.036
.055
.038
0.010
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.002
.113
.025
.024
.060
.045
.023
.097
.031
.063
.196
.042
.010
.021
.031
.023
• 098
.029
.036
MEDIAN
INOWG N
o.soo
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
0.160
0.555
0.420
0.600
0.070
o.iao
0.070
0.140
0.150
0.080
500-
MEAN SEC
371.
419.
378.
461.
470.
437.
463.
461.
384.
473.
475.
470.
469.
474.
475.
455.
486.
440.
485.
465.
456.
403.
439.
442.
419.
481.
439.
462.
474
917
312
625
375
625
333
667
812
625
187
111
625
909
782
000
187
000
333
469
500
562
312
625
045
000
458
583
MEAN
CHLOKA
2
12
8
22
4
8
14
22
2
12
19
15
5
6
14
10
16
12
5
1*
8
12
3
10
9
24
6
11
.0'-2
.392
.025
.762
.887
.606
.808
.500
.500
.675
.756
.867
.662
.317
.156
.217
.650
.919
.400
.112
.100
.944
.037
.619
.495
.675
.267
.775
15-
MIN 00
14
15
15
14
14
15
11
13
14
10
14
9
11
9
14
10
12
15
8
15
14
15
14
14
15
10
15
15
.900
.000
.000
.800
.400
.000
.400
.000
.600
.200
.000
.000
.000
.BOO
.600
.400
.400
.000
.800
.000
.900
.000
.400
.600
.000
.200
.000
.000
MEDIAN
DISS OUTHO P
0.009
0.007
0.007
0.062 .
0.007
0.012
0.013
0.007
0.006
0.012
0.050
0.009
0.008
0.022
0.018
0.007
0.036
0.011
o.oia
0.128
0.013
0.004
0.009
0.010
0.009
0.011
0.009
0.008
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
•«829 SOMERVILLE LAKE
4830 STAMFORD LAKE
4831 STILLHOUSE HOLLOW RESEKV
4832 TAWAKONI 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
O.lOb
0.042
0.018
0.389
0.029
0.020
0.028
MEDIAN
1NOHG N
0.11S
0.060
0.160
0.100
0.120
0.160
0.250
0.110
0.250
0.110
0.120
500-
MEAN SEC
473.833
482.714
406.250
466.417
47B.500
451.321
389.913
479.500
454.917
434.500
430.500
MLAN
CHLORA
24.491
18.457
3.917
18.246
19.119
12.493
5.595
24.300
8.708
4.333
6.912
Ib-
MIN DO
13.000
10.600
15.000
13.200
12.400
15.000
15.000
10.000
14.800
15.000
15.000
MEDIAN
DISS OhUrlO P
0.013
0.012
0.010
0.013
0.030
0.018
0.007
0.240
0.009
0.009
0.008
-------
PERCENT OK LAKES WITH HIGHER VALUES
LAKE
CODE LAKE NAME
4801 AMISTAO LAKE
4802 8ASTROP LAKE
4803 8ELTON RESERVOIR
4804 8RAUNIG LAKE
4805 BROrtNWOOO LAKE
4806 LAKE BUCHANAN
4807 CADDO 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
4820 LIVINGSTON LAKE
4821 LYNDON B JOHNSON LAKE
4822 MEDINA LAKE
4823 LAKE MEREDITH
4824 PALESTINE LAKE
4825 POSSUM KINGDOM RESERVOIR
4826 SAN ANOELO RESERVOIR
4827 SAM.RAYBURN RESERVOIR
4828 E V SPENCE RESERVOIR
u,~ LM.<.i:> •*».« ...jo
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)
( 31)
( 20)
( 28)
( 5)
( 22)
( 19)
MEDIAN
INORG N
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
( 2)
( 28)
( 10)
( 16)
< 26)
( 7)
( 33)
( 38)
( 3)
( 28)
( 18)
( 31)
( 33)-
( 25)
( 5)
( 22)
( 6)
( 28)
( 11)
( 1)
( 4)
( 0)
( 33)
< 12)
( 33)
( 17)
( 15)
( 3D .
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
( 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)
MEAN
CHLOHA
100
47
68
8
87
.63
32
11
97
42
13
29
79
74
34
55
2*
39
84
26
66
37
95
53
58
0
76
50
! 38)
( 18)
( 26)
( 3)
( 33)
( 24)
( 12)
( 4)
( 37)
( lt>)
< 5)
( ID
( 30)
( 28)
< 13)
( 21)
( 9)
( 15)
< 32)
( 10)
( 25)
( 14)
( 36)
( 20)
( 22)
( 0)
( 29)
( IV)
15-
MIN 00
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
68
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 OHTHO P
63
92
84
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)
( 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
402
393
384
159
394
261
297
362
445
310
155
372
430
296
173
423
139
298
258
91
238
342
441
302
367
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 RESErtV
4832 TAWAKONI LAKE
4833 TEXARKANA LAKE
4834 TEXOMA LAKE
4635 TRAVIS LAKE
4836 TRINIDAD
4837 TWIN HUTTES RESERVOIR
4838 WHITE RIVER RESERVOIR
4839 WHITNEY LAKE
MEDIAN
TOTAL P
29 (
18 (
88 <
32 <
11 <
39 (
88 (
0 (
59 (
84 <
63 (
11)
7)
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)
( 351
( 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 DO
67
82
17
63
72
17
17
92
49
17
17
( 25)
< 31)
( 0)
( 24)
( 27)
( 0)
( 0)
( 35)
( 17)
( 0)
( 0)
MEDIAN
DISS OrtTHO P
30 (
39 (
51 (
30 (
13 (
21 (
84 (
0 (
63 (
63 (
76 (
10)
14)
19)
10)
5)
7)
31)
0)
21)
21)
28)
INUEX
NO
208
259
372
253
176
217
384
169
311
390
357
-------
RANK LAKE CODE LAKE NAME
1 4809 CANYON RESERVOIR
2 4823 LAKE MEREDITH
3 4813 EAGLE MOUNTAIN LAKE
4 4816 KEMP LAKE
5 4801 AMISTAO LAKE
6 4805 BROnNWOOD LAKE
7 4802 BASTRuP LAKE
8 4838 WHITE RIVER RESERVOIR
9 4825 POSSUM KINGOOM RESERVOIR
10 4835 TRAVIS LAKE
11 4803 BELTON RESERVOIR
12 4831 STILLHOUSE HOLLOW RESERV
13 4812 DIVERSION LAKE
14 4808 CALAVERAS LAKE
15 4839 WHITNEY LAKE
16 4822 MEDINA LAKE
17 4827 SAM RAYBURN RESERVOIR
18 4828 £ V SPENCE RESERVOIR
19 4837 TWIN BUTTES RESERVOIR
20 4810 LAKE COLORADO CITY
21 4824 PALESTINE LAKE
22 4818 LAKE OF THE PINES
23 4807 CADOO LAKE
24 4814 FT PHANTOM HILL LAKE
25 4806 LAKE BUCHANAN
26 4830 STAMFORD LAKE
27 4819 LIWON RESERVOIR
28 4832 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 INDEX NO
29 4821 LYNDON B JOHNSON LAKE 238
30 4834 TEXOMA LAKE 217
31 4829 SOMERVILLE LAKE 208
32 4826 SAN ANGELO KESERVOIR 200
33 4833 TEXAWKANA 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
-------
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
-------
TRIBUTARY FLOW INFORMATION TOR TEAAS
LAKE CODE 4815 LEwISVILLE RESERVOIR
TOTAL DRAINAGE AREA OF'LAKE(SO KM)
03/10/76
SUB-DRAINAGE
TRIBUTARY AREA(SQ KM)
NORMALIZED FLOWS(CMS)
4815A1
4815A2
4B15C1
481501
4615F1
4815Z2
4299.4
986.8
764.0
688.9
195.5
1662.8
JAN
14.33
2.35
1.16
1.87
0.4B1
3.65
FEE)
10.93
3.82
1.84
2.75
C.963
5.69
MAR
21.83
3.91
2.10
3.85
1.161
6.80
APR
16.54
7.56
4.30
8.07
3.058
13.85
MAY
37.41
10.48
5.01
7.45
3.455
15.49
JUN
36.87
3.77
2.63
3.57
0.850
6.85
JUL
14.07
1.56
0.54
1.02
0.130
2.10
AUG SEP
8.86 10.99
1.61 4.67
0.28 2.66
0.28 5.44
0.088 1.4<»4
1.33 ,8.92
UCT
10.68
2.75
1.19
1.78
0.595
3.82
NOV
14.30
3.65
2.12
3.57
0.934
6.46
DEC
17.44
2.94
1.39
2.75
0.991
4.a7
MEAN
17.89 i
4.08
2. 10
3.52
1.177
b.63
SUMMARY
TOTAL
SUM OF
DRAINAGE
AREA OF
LAKE =
SUB-DRAINAGE AREAS =
4299.4
4298.1
TOTAL FLOW IN =
TOTAL FLOW OUT =
210.
214.
67
25
MEAN MONTHLY FLOWS AND UAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
4815A1
FLOW DAY
FLOW DAY
FLOW
4815A2
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
1?
1
2
3
tt
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
8.297
10.166
112.418
118.648
12.403
84.101
39.077
43.325
26.250
85.234
7.419
6.230
10.081
34.547
30.497
1.869
4.531
16.990
14.300
9.061
7.306
9.175
0.821
1.501
8
6
10
15
12
6
16
13
18
14
26
17
8
e
10
15
12
8
16
13
18
14
26
17
5.692
10.307
106.188
124.028
7.985
53.519
36.812
8.778 27
43.608 31
102.507
3.483
4.701
0.187
0.850
139.036
2.039
1.614
6.654
64.562
4.47<* 30
1.246 31
3.285
0.566
2.039
10.279
39.077
1.614
10.760
-------
TRIBUTARY FLOW INFORMATION TOR TEXAS
03/10/76
LAKE CODE 4815
LEwISVILLE RESERVOIR
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR
MEAN FLOW OAY
FLOW DAY
FLOW OAY
FLOW
4815C1
481501
4815F1
4815Z2
9
10
11
12
1
2
3
4
5
b
7
a
9
10
11
12
1
2
3
4
5
b
7
a
9
10
11
12
i
2
3
it
5
6
7
a
9
10
11
12
1
2
3
i>
S
6
7
8
74
74
74
74
75
75
75
75
75
75
75
75
74
74
7<»
74
75
75
75
75
75
75
75
75
74
74
7<»
74
75
75
75
75
75
75
75
75
74
7*»
74
74
75
75
75
75
75
75
75
75
3.483
12.544
22.087
1.699
2.379
11.129
8.240
5.918
8.353
7.108
1.161
0.263
5.154
20.190
15.461
0.538
1.954
13.762
9.769
6.428
9.826
5.663
0.173
0.028
2.747
4.870
9.373
0.906
0.736
3.200
0.991
2.237
2.265
5.720
0.003
0.0
15.093
44.004
54.170
3.993
5.805
28.317
18.548
15.631
23.645
23.276
5.465
0.793
6
6
10
15
12
8
16
13
Ib
14
26
17
8
6
10
15
12
8
16
13
IB
14
2b
17
8
6
10
15
12
a
16
13
18
U
2fa
17
0.082
0.425
69.376
1.869
1.416
6.711
28.260
4.927 27
1.784 31
9.146
2.492
0.130
0.034
0.059
54.368
0.510
0.821
4.049
35.113
2.237 27
0.878 31
1.246
0.991
0.028
0.003
0.275
41.909
0.481
0.311
2.209
3.398
1.869 27
0.623 31
9.401
0.0
0.0
1.982
20.190
0.510
26.335
0.074
8.0^2
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STOREf RETRIEVAL DATE 76/OS/ll
461501
33 04 18.0 096 57 54.0
GAUZA LITTLE ELM RESERVOIR
48121 TEXAS
DATE
FROM
TO
74/03/11
74/05/17
74/08/12
74/10/31
00010
TIME DEPTH WATER
OF TEMP
DAY FEET
11
11
11
11
11
16
16
16
16
16
11
11
11
11
09
09
09
09
09
09
40
40
40
40
40
05
05
05
05
05
35
35
35
35
?5
25
?5
25
25
25
(TOGO
0005
0015
0025
0041
0000
0005
0015
0030
0040
0000
0020
0040
0045
0000
0005
0015
0025
0040
0053
CENT
15.2
14.9
14.7
14.5
14.2
23.9
23.4
22.8
21.9
20.1
26.2
26. 1
26.1
25.0
19.4
19.4
19.4
19.4
19.4
19.4
11EPALES
00300
00
MG/L
9.2
9.8
9.4
9.6
7.0
6.6
7.0
5.6
5.8
5.0
5.0
0.4
7.8
7.8
7.2
7.6
7.8
8.2
00077
TRANSP
SECCHI
INCHES
24
36
72
30
00094
CNDUCTVY
FIELD
MICROMHO
263
263
261
259
260
371
366
362
351
335
354
353
354
375
315
315
31S
315
313
313
3
00400
PH
SU
8.20
8.15
8.15
8.05
8.0b
8.30
8.25
3.20
8.00
7.90
8.16
8.11
8.08
7.66
7.91
7.91
7.91
7.89
7.89
7.89
00410
T ALK
CAC03
MG/L
107
107
107
107
107
114
114
113
114
114
118
119
120
134
108
107
107
104
107
108
2111202
0046
00610
NH3-N
TOTAL
MG/L
0.060
0.070
0.060
0.070
O.C70
0.070
0.050
0.040
0.040
0.040
0.080
0.070
0.080
0.330
0.040
0.030
0.030
0.030
0.030
0.040
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.300
0.300
0.300
0.300
0.200
0.500
0.400
0.300
0.300
0.300
0.500
0.200
0.200K
0.400
0.400
0.200
0.300
0.300
0.300
0.300
00630
N026.N03
N-TOTAL
MG/L
0.340
0.340
0.350
0.350
0.360
0.450
0.440
0.440
0.470
0.490
0.060
0.060
0.060
0.030
0.150
0.160
0.160
0.160
0.170
0.180
00671
PHOS-DIS
ORTHO
MG/L P
0.019
0.019
0.028
0.025
0.024
0.018
0.017
0.015
0.023
0.020
0.005
0.005
0.009
0.014
0.026
0.023
0.024
0.023
0.025
0.015
K VALUE KNOfcN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/02/11
481501
33 04 18.0 096 57 54.0
GAHZA LITTLE ELM RESERVOIR
TEXAS
11EPALES
3
2111202
0046 FEET
DEPTH
DATE
FROM
TO
74/03/11
74/05/17
74/08/12
74/10/31
00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET
11
11
11
11
H
16
16
16
16
16
11
11
11
11
09
09
09
09
09
09
40
40
40
40
40
05
05
05
05
05
35
35
35
35
25
?5
25
25
?5
?5
0000
0005
0015
0025
0041
0000
0005
0015
0030
00<«0
UOOO
0020
0040
0045
0000
0005
0015
0025
0040
0053
Mij/L P
0
0
0
0
0
0
0
0
0
0
0
•o
0
0
0
0
0
0
0
0
.034
.030
.041
.042
.041
.04.8
.041
.043
.043
.050
.026
.02H
.027
.126
.040
.036
.035
.036
.037
.03t>
UR/L PERCENT
1.2
19.4
4.4
5.3
-------
STORET RETRIEVAL DATE 76/Oc/li
481b02
33 04 57.0 096 56 23.0
GARZA LITTLE ELM RESERVOIR
48121 TEXAS
DATE
FROM
TO
74/03/11
74/05/20
74/08/12
74/10/31
TIME DEPTH
OF
DAY FEET
10
10
10
10
12
12
12
12
11
11
11
09
09
09
09
55
S5
55
55
05
05
05
05
10
10
10
55
55
55
55
0000
0005
0015
0025
0000
0005
0015
0025
0000
0015
0026
0000
0005
0015
0030
00010
WATER
TEMP
CENT
17.6
17.6
17.2
14.9
25.5
25.5
25.4
24.7
26.4
26.1
26.0
19.6
19.6
19.5
19.5
00665
DATE
FROM
TO
74/03/11
74/05/20
74/08/12
74/10/31
TIME DEPTH
OF
DAY
10
10
10
12
12
12
12
11
11
11
09
09
09
09
FEET
55
55
55
05
05
05
05
10
10
10
55
55
55
55
0000
0015
0025
0000
0005
0015
0025
0000
0015
0026
0000
0005
0015
0030
PHOS-TOT
MG/L P
0
. 0
0
0
0
0
0
0
t/
0
0
0
0
0
.020
.027
.04?
.030
.026
.033
.036
.031
.021
.OJ7
.048
.043
.051
.045
00300
DO
MG/L
9.
9.
10.
7.
7.
7.
7.
6.
6.
7,
8.
7,
8.
32217
00077 00094
TRftNSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
24
0
0
a
36
2
4
6
0 36
6
2
4 24
2
4
0
00031
285
286
282
266
376
375
379
375
358
359
359
317
317
317
317
CHLRPHYL INCDT LT
A
UG/L
2.
29.
12.
12.
HEMNING
PERCENT
i
3
1.0
0
s
l.u
11EPALES
3
00400
PH
SU
00410
T ALK
CAC03
MG/L
2111202
0030 FEET DEPTH
00610
NH3-N
TOTAL
MG/L
00625
TOT KJEL
N
MG/L
00630
N02&N03
N-TOTAL
MO/L
00671
PHOS-UIS
ORTrtO
MG/L P
24
36
36
24
285
286
282
266
376
375
379
375
358
359
359
317
317
317
317
8.20
8.20
8.20
8.10
8.40
8.40
8.40
8.30
8.49
8.45
d.40
7.93
7.91
7.88
7.87
111
111
108
114
113
113
113
118
120
120
110
112
113
114
0.050
0.050
0.070
0.030
0.020
0.030
0.040
0.060
0.040
0.050
0.050
0.040
0.040
0.040
0.300
0 . 300
0.300
0.700
0.500
0.400
0.400
0.700
0.400
0.200K
0.500
0.400
0.300
0.300
0.260
0.270
0.340
0.390
0.400
0.410
0.420
0.050
0.020K
0.020K
0.160
0.160
0.160
0.160
0.007
0.013
0.024
0.004
0.004
0.005
0.008
0.011
0.008
0.008
0.015
0.015
0.014
0.014
K VALUE KNOWN TO rfE
LtSS THAN INOICATEU
-------
STORE! RETRIEVAL DATE 76/02/11
481503
33 06 06.0 097 01 35.0
GARZA LITTLE ELM RESERVOIR
TJXAS
DATE
FROM
TO
74/03/11
74/05/20
74/08/12
74/10/31
DATE
FROM
TO
74/03/11
74/05/20
74/08/12
74/10/31
TIME DEPTH
OF
DAY FEET
12 10 0000
12 10 0005
12 10 0015
12 10 0032
10 00 0000
10 00 0005
10 00 0015
10 00 0033
12 05 0000
12 05 0013
12 05 0020
10 20 0000
10 20 0005
10 20 0015
10 20 0028
TIME DEPTH
OF
DAY FEET
12 10 0000
12 10 0005
12 10 0015
12 10 0032
10 00 0000
10 00 0005
10 00 0015
10 00 0033
12 05 0000
12 05 0013
12 05 0020
10 20 0000
10 20 0005
10 20 0015
10 20 0028
00010
WATER
TEMP
CENT
18.8
18.4
15.6
14.5
23.4
26.4
26.3
22.8
26.9
26.7
26.2
18. b
18.8
18.6
18.0
00665
PHOS-TOT
MG/L P
0.027
0.030
0.031
0.043
0.042
0.0<*0
0.041
0.087
0.032
3.030
O.OtS
0.303
0.762
0.818
1.250
00300 00077
DO TRANSP
MG/L
8
9
9
6
6
7
7
6
5
7
7
7
6
3221
SECCHI
INCHES
24
.6
.2
.0
30
.8
.8
.2
.8 41
.0
.2
.2 3
.2
.2
.4
7 00031
00094
CNDUCTVY
FIELD
M1CROMHO
305
297
266
261
384
384
384
363
355
354
354
185
187
167
127
11EPALES
3
00400 00410
PH T ALK
SU
8.20
8.20
8.15
8.00
8.20
8.30
8.25
7.65
8.54
8.46
8.13
7.87
7.87
7.87
7.93
CAC03
MG/L
120
118
109
110
114
114
114
117
120
118
121
85
83
74
66
2111202
0037 FEET DEPTH
00610 00625 00630
NH3-N TOT KJEL N026.N03
TOTAL
MG/L
0.060
0.060
0.060
0.080
0.070
0.050
0.070
0.040
0.040
0.050
0.080
0.140
0.160
0.170
0.160
N
MG/L
0.300
0.200
0.200
0.200
1.100
0.500
0.400
0.400
0.600
0.300
0.300
1.100
1.000
2.200
2.400
N-TOTAL
MG/L
0.150
0.160
0.290
0.330
0.310
0.300
0.320
0,490
0.020K
0.020K
0.020
0.380
0.430
0.490
0.620
00671
PHOS-DIS
ORTHO
MG/L P
0.007
0.008
0.017
0.019
0.008
0.007
0.007
0.012
0.004
0.004
0.011
0.054
0.050
0.061
0.071
CHLRPHYL INCOT LT
A
UG/L
4
31
12
a
REMNING
PERCENT
.0
.7
.0
.1
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
MORET RETRIEVAL DATE 7o/02/ll
48lb04
33 07 13.0 096 59 22.0
GARZA LITTLE ELM RESERVOIR
48121 TEXAS
11EPALES
DATE
FROM
TO
74/03/11
74/05/20
74/08/12
74/10/31
DATE
FROM
TO
74/03/11
74/05/20
74/06/12
74/10/31
TIME DEPTH
OF
DAY FEET
12 40 0000
12 40 0005
12 40 0015
12 40 0020
10 -»5 0000
10 35 0005
10 35 0015
10 35 0020
14 45 0000
14 45 0011
14 45 0022
10 40 0000
10 40 0005
10 40 0015
10 40 0029
TIME OEpTH
OF
DAY FEET
12 40 0000
12 40 0005
12 40 0015
12 40 0020
10 35 0000
10 35 0005
10 35 001S
10 35 0020
14 45 0000
14 45 0011
14 45 0022
10 40 0000
10 40 0005
10 40 0015
10 40 0029
00010
WATER
TEMP
CENT
16.5
16.5
16.0
15.8
26.0
25.9
25.8
25.1
27.0
2b.4
26.1
19.5
19.5
19.7
19.7
00665
PHOS-T01
MG/L P
0.096
0.048
0.049
0.052
0.09'.
O.OHd
0.069
0.071
0.035
0.035
S.047
0.092
0.107
0.076
0.091
00300
DO
MG/L
9.2
8.6
8. 6
6.8
7.2
7.2
8.0
7.2
6.8
8.2
8.2
8.2
8.2
32217
CHLRPHYL
A
UG/L
3.0
32.9
15.4
11.5
00077
TRANSP
SECCHI
INCHES
18
12
36
24
00031
INCOT LT
REMNING
PERCENT
1.0
00094
CNDUCTVY
FIELD
M1CROMHO
295
294
285
280
400
398
394
394
3b8
354
359
305
305
313
309
3
00400
PH
SU
8.10
8.15
8.10
8.10
8.20
8.20
8.20
8.30
8.59
8.43
8.39
7.91
7.91
7.93
7.93
211
1202
0025 FEET DEPTH
00410
T ALK
CAC03
MG/L
131
114
114
114
113
113
112
112
120
119
122
110
109
109
108
00610
NH3-N
TOTAL
MG/L
0.140
0.070
0.070
0.070
0.040
0.030
0.040
0.040
0.050
0.040
0.040
0.060
0.050
0.040
0.040
00625
TOT KJEL
N
MG/L
0.500
0.300
0.300
C.300
0.500
0.400
0.400
0.400
0.800
0.300
0.200
o.eoo
0.500
0.400
0.300
00630
N02&N03
N-TOTAL
MG/L
0.3SO
0.330
0.330
0.340
0.580
0.570
0.540
0.540
0.030
0.040
0.060
0.240
0.360
0.230
0.270
00671
PHOS-DIS
ORTHO
MG/L P
0.051
0.023
0.023
0.023
0.040
0.037
0.030
0.030
0.006
0.008
0.010
0.031
0.057
0.043
0.039
-------
STOfcET SETRItVAL 0*A.TE 76/02/1i
481505
33 09 27.0 097 57 16.0
GARZA LITTLE ELM RESERVOIR
48121 ,£XAS
11EPALES
3
DATE
FROM
TO
74/03/11
74/05/20
74/08/12
7<*/10/31
DATE
FROM
TO
74/03/11
74/05/20
74/u8/12
74/10/31
TIME
OF
DAY
13 00
13 00
13 00
13 00
11 30
11 30
11 30
11 30
15 05
15 05
15 05
11 00
11 00
11 00
11 00
DEPTH
FEET
0000
0005
0015
0025
0000
0005
0015
0024
0000
0010
0015
0000
0005
0015
0022
TIME DEPTH
OF
DAY FEET
13 00
13 00
13 00
13 00
1 30
1 30
1 30
1 30
1 30
15 05
15 05
15 05
11 00
11 00
11 00
11 00
11 00
0000
0005
0015
0025
0000
0003
0005
0015
0024
0000
0010
0015
0000
0001
0005
0015
0022
00010
WATER
TEMP
CENT
18.4
18.4
17.6
16.7
27.0
26.7
?6.4
26.3
27.4
26.7
25.4
19.6
19.6
19.3
19.1
00665
PHOS-TOT
MG/L P
0.050
0.051
C.050
0.071
0.073
0.091
0.119
0.304
0.046
0.045
0.074
0.197
0.401
G.<.58
0.<*b2
00300 00077
DO
MG/L
e
8
7
7
6
6
7
6
5
7
6
6
6
3221
TRANSP
SECCHI
INCHES
20
.4
.2
.4
12
.2
.8
.4
.4 24
.8
.6
.4 3
.6
.2
.6
7 00031
00094
CNDUCTVY
FIELD
MICROMHO
322
322
299
295
470
469
455
400
351
348
339
243
243
193
193
00400
PH
SU
8.
8.
8.
7.
8.
8.
8.
8.
8.
a.
8.
7.
7.
7.
7.
15
10
10
90
30
25
20
10
74
45
12
77
73
61
53
00410
T ALK
CAC03
MG/L
118
116
114
115
109
109
107
107
120
116
119
93
78
73
60
2111202
0030 FEET DE
00610
NH3-N
TOTAL
Mli/L
0.070
0.080
0.060
0.120
0.050
0.040
0.040
0.050
0.050
0.040
0.100
0.080
0.090
0.100
0.120
00625
TOT KJEL
N
MG/L
0.400
0.300
0.300
0.400
0.600
0.400
0.400
0.500
0.700
0.300
0.300
0.600
0.700
0.800
1.100
CHLRPHYL INCOT LT
A
UG/L
2
20
16
12
REMNING
PERCENT
.4
.7
1.0
.4
.5
1.0
00630 00671
N02&N03 PHOS-D1S
N-TOTAL ORTHO
MG/L MG/L P
0.290
0.290
0.300
0.320
0.840
0.810
0.800
0.860
0.020
0.020K
0.040
0.190
0.360
0.360
0.320
0.016
0.014
0.01S
0.020
0.022
0.018
0.016
0.016
0.006
0.004
0.006
0.0*5
o.oeo
0.07o
0.066
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE; RETRIEVAL DATF 75/02/11
461506
33 09 52.0 097 37 00.0
GAhl/fA LITTLE ELM RESEKVOIR
48121 TEXAS
11E?ALES
DATE
FROM
TO
74/05/20
74/08/12
74/10/31
DATE
FROM
TO
74/05/20
74/06/12
74/10/31
TIME DEPTH
OF
DAY FEET
11 15 0000
11 15 0005
15 30 0000
15 30 0007
11 30 0000
11 30 0007
TIME DEPTH
OF
DAY FEET
11 15 0000
11 15 0001
11 15 0005
15 30 0000
15 30 0007
11 30 0000
11 30 0007
00010
WATER
TEMP
CENT
26.7
26.6
27.2
26.3
18.5
18.5
00665
PHOS-TOT
MG/L P
0.233
0.226
0.108
0.082
0.378
0.450
00300
DO
MG/L
6.6
7.4
7.2
7.4
7.0
32217
CHLRPHYL
A
UG/L
19.3
25.8
23.7
00077
TRANSP
SECCHI
INCHES
12
13
3
00031
INCDT LT
REMNING
PERCENT
1.0
00094
CNDUCTVY
FIELD
MICROMHO
433
435
373
367
199
199
3
00400
PH
SO
8.10
8.10
8.63
8.49
7.75
7.81
00410
T ALK
CAC03
MG/L
118
118
121
120
82
75
211
0010
00610
NH3-N
TOTAL
MG/L
0.050
0.040
0.060
O.ObO
0.120
0.140
1202
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.600
0.400
0.800
0.300
0.900
0.800
00630
N02&N03
N-TOTAL
MG/L
0.740
0.730
0.060
0.060
0.260
0.270
00671
PHOS-DIS
ORTHO
MG/L P
0.081
0.078
0.027
0.021
0.076
0.073
-------
APPENDIX E
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 76/03/io
4815A1
33 04 02.0 097 57 50.0 4
ELM FORK TRINITY RIVER
48253 7.5 LEWISVILLE E
0/{jAKZA-LITTLE ELM RES
BANK SAMP btLOW LEWISVILLE DAM
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
74/09/08
74/10/06
74/11/10
74/12/15
75/01/12
75/02/08
75/C3/16
75/04/13
75/04/27
75/05/18
75/05/31
75/06/14
75/07/26
75/08/17
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
11
10
09
09
09
09
07
08
08
08
07
14
09
08
50
30
10
30
00
30
30
40
00
00
30
15
40
10
MG/L
0
0
0
0
C
0
0
0
0
0
0
0
0
0
.160
.160
.272
.320
.352
.384
.590
.590
.620
.590
.550
.500
.120
.100
MG/L
0.
1.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
400
100
500
500
700
300
600
700
750
450
900
500
400
30C
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
020
030
025
024
072
008
035
040
060
020
030
015
025
010
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
,005K
.015
.040
.060
.064
.056
.055
.045
.045
.035
.025
.020
.010
.OOSK
MG/L P
0.020
0.04Q
0.080
0.09Q
0.12G
0.070
0.090
0.070
0.070
0.06C
0.090
0.050
0.020
0.040
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/03/10
DATE TIME DEPTH N02fcN03
FROM . OF
TO DAY FEET
74/09/08
74/10/06
74/11/10
74/12/15
75/01/12
75/02/08
75/03/16
75/04/13
75/05/16
75/05/31
75/06/14
75/07/26
75/08/17
09 25
15 00
14 05
13 30
13 30
08 40
09 55
13 40
12 30
14
11
30
40
14 11
12 30
4815A2
33 23 15.0 097 05 00.0 4
ELM FORK TRINITY RIVER
48 ucNTON CO ,4AP
T/GAKZA-LITTLE ELM RES
SEC KL> 445 tJROG 6 MI £NE OF SANGER
11EPALES 2111204
0000 FEET DEPTH CLASS 00
0630
'{.NO 3
OTAL
IG/L
0.680
0.480
0.368
1.520
1.28C
0.940
0.65U
0.830
1.200
U.50G
0.810.
1.950
0.700
00625
TOT KJEL
N
MG/L
2.700
0.800
2.000
1.300
0.900
0.700
3.500
0.550
U.800
O.R50
0.800
1.030
1.100
00610
NH3-N
TOTAL
MG/L
0.580
D.04S
0.050
0.060
0.048
0.104
0.095
0.030
0.030
0.045
0.025
0.055
0.050
00671
PHOS-DIS
ORTHO
MG/L P
0.195
0.155
0.110
0.200
0.088
0.155
0.055
0.110
0.095
'1.135
0.330
0.390
00665
PHOS-TOT
MG/L P
0.315
0.210
0.500
0.140
0.260
0.130
0.110
0.200
U.200
0.210
0.400
• 0.560
-------
STORE! RETRIEVAL DATE 76/03/10
DATE TIME DEPTH N02&N03
FROM OF
TO DAY FEET
74/09/08
74/10/06
74/11/10
74/12/15
75/01/12
75/03/06
75/03/16
75/04/13
75/04/27
75/05/18
75/05/31
75/06/14
75/07/26
75/08/17
11 35
09 30
08 30
08 50
08 00
07 55
09 10
08 00
15 30
07 00
15 45
13 40
08 50
07 20
4815«1
33 09 03.0 097 08 30.0 4
HICKOKY CREEK
48 7.5 DENTON WEST
T/GARZA-LITTLE ELM RES
SEC RD 1830 BrtDG 4.5 MI S OF DENTON
11EPALES 2111204
0000 FEET DEPTH CLASS 00
0630
&N03
OTAL
G/L
0.052
0.464
0.500
1.010
0.680
1.010
0.85C
0.910
0.500
1.650
0.5SO
0.540
0.29C
0.035
00625
TOT KJEL
N
MG/L
.000
.400
.900
.200
.600
0.700
1.300
1.150
0.450
1.150
0.850
0.550
0.900
0.450
00610
NH3-N
TOTAL
MG/L
0.065
0.670
0.045
0.120
0.232
0.048
0.050
0.035
0.025
0.025
0.035
0.015
0.035
0.010
00671
PHOS-DIS
ORTHO
MG/L P
0.005
0.390
0.015
0.200
0.040
0.035
0.025
0.005
0.035
0.045
0.035
0.040
0.01C
00665
PHOS-TOT
MG/L P
0.040
0.420
0.440
0.050
0.240
0.080
0.060
0.030
U. 140
0.1 3C
0.070
0.130
0.060
-------
STORET RETRIEVAL DATE 76/oi/io
DATE TIME DEPTH N02&N03
FROM or
TO DAY FEET
74/09/06
74/10/06
74/1 1/10
74/12/15
75/01/12
75/02/08
75/03/lb
75/04/13
75/04/27
75/05/18
75/05/31
75/06/14
75/07/26
75/08/17
09
15
14
13
14
15
09
13
15
12
15
10
15
13
00
15
30
50
45
00
30
55
00
55
00
00
20
10
4H15C1
33 20 13.0 097 10 45.0 4
CLEAR CHEEK
48 UcNTOiN CO MAP
T/GAR/A-LITTLE ELM RES
SEC RO 6ROG 1.5 Ml S OF SANGEH
11EPALES 2111204
OOOU FEET DtPTri CLASS 00
0630
&N03
OTAL
IG/L
0.108
0.032
0.184
0.22ft
0.176
0.480
0.440
0.230
0.095
0.360
0.195
0.155
0.200
0. 120
0062S
TOT KJEL
N
MG/L
0.850
0.300
1.700
1.100
0.500
0.600
0.420
0.600
0.400
0.200
0.650
0.700
1.7SO
0.400
00610
NH3-N
TOTAL
MG/L
O.ObO
0.020
.1.155
0.040
0.024
0.032
O.OttS
0.02C
0.070
0.005K
0.015
0.015
0.055
0.02U
00671
PhOS-OIS
ORTHO
MG/L P
0.010
0.020
0.045
0.008K
0.040
0.024
0.035
0.010
0.005K
0.010
0.020
0.020
0.015
0.005K
00665
PhOS-TGT
MG/L P
0.067
0.020
0.055
0.010
0.044
0.070
0. 100
0.050
0.030
0.040
0.100
0.100
0.380
O.ObO
K VALUt KNOWN TO BE
LESS THAN INDICATED
-------
STOMEF RETRIEVAL OAFE 76/03/10
DATE TIME DEPTH N02S.N03
FROM 0^
TO DAY FEET
74/09/08
7<*/10/06
74/11/10
74/12/lb
75/01/12
75/02/Ob
75/03/16
75/04/13
75/04/27
75/05/18
75/C5/31
75/06/1"
75/07/2b
75/08/17
09 40
14 30
13 <*5
13 10
12 SO
1<» 20
to no
13 10
13 30
12 00
14 00
il 50
13 50
11 10
33 24 23.0 097 00 45.0 4
ISLL DU -OIS CREEK
48 OENFON CO MAP
T/GAKZA-LITTLE ELM KES
SEC KO 372 B.RDG 3 MI W OF PILOT POINT
HEPALES 2111204
0000 FEET DEPTH CLASS 00
0630
S.N03
OTAL
'G/L
O.lSb
0.072
0.096
0.144
0.072
3.272
0.260
0.430
0.035
0.560
0.120
0. 165
0.570
O.bOO
00625
TOT KJEL
N
MG/L
1.100
0.900
1.500
1.400
0.400
0.800
2.100
0.400
0.300
1.G50
1.C50
0.800
3.450
0.70C
00610
NH3-N
TOTAL
MG/L
0.195
0.035
0.150
0.040
0.016
0.072
0.100
0.010
0.025
0.045
0.050
0.065
0.095
0.010
00671
PHOS-DIS
OHTHO
MG/L P
0.045
0.075
0.055
0.024
0.032
0.075
0.020
0.010
0.045
6.04C
0.030
0.04C
0.010
00665
PhOS-TOT
Mii/L P
0.150
0.130
0.440
0.130
0.070
0.120
0.090
0.020
0.170
0.200
0.100
0.115
0.070
-------
STORET RETRIEVAL DATE 76/03/10
4815F1
33 17 12.0 096 53 30.0 4
LITTLE El M CWEEK
48 OENTON CO MAP
T/GArt 1385 B*DG fa MI SE OF PILOT POINT
11EPALES 2111204
0000 FEET DEPTri CLASS 00
DATE
FROM
TO
74/09/08
74/10/06
74/11/10
74/12/15
75/01/12
75/02/08
75/03/16
75/04/13
75/04/27
75/05/1H
75/05/31
75/06/14
75/07/26
75/1/8/17
00630 00625
TIME DEPTH N02*»'NG3 TOT KJfcL
OF N-TOTAL N
DAY FEET
10
11
13
10
09
10
09
09
08
18
08
14
11
08
15
25
05
20
40
30
10
10
45
40
30
SO
05
-••o
MG/L
0
0
0
0
0
1
0
0
0
1
1
0
0
.660
.016
.288
.576
.36«
.200
.870
.830
.010
.880
.150
.450
.400
MG/L
1
0
1
1
1
1
2
1
1
1
1
0
0
0
.800
.900
.200
.400
.300
.600
.000
.450
.200
.800
.150
.700
.650
.750
00610 00671 00665
NHJ-N PHOS-DIS PHOS-TOT
TOTAL 0«THO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
047
007
08b
064
032
256
035
050
025
030
035
010
020
010
MG/L
0.
0.
0.
0.
0.
' J •
0.
0.
0.
0.
c.
0.
0.
p
015
070
125
200
200
192
090
015
070
060
lib
005
010
MG/L P
0.175
0.180
0.420
0.340
0.270
0.350
0.500
0.390
0.160
0.330
0.32C
0.290
0.060
0.080
-------
STORET RETRIEVAL DATE 76/03/10
4815G1
33 30 50.0 096 52 00.0 4
RANGE CRFEK
48 15 WHITESBURO
T/GARZA-LHTLE ELM WES
SEC *D BROG 5.5 MI SE OF COLLINSVILLE
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
r^uM
TO
74/12/15
75/02/0*
75/04/13
75/0'»/27
75/05/18
75/05/31
75/0&/14
75/07/26
TIME DEPTH
OF
DAr FEET
12 05
13 45
11 00
11 00
10 05
12 00
13 20
12 48
00630
N02e»N03
N-TOTAL
MG/L
U. 18<4
C.240
C.260
0.015
0.960
0.170
0.115
0.650
00625
TOT KJF.L
N
MG/L
1.500
0.800
O.R50
1.900
1.380
0.975
1.3SO
1.750
00610
NH3-N
TOTAL
MG/L
0.256
0.064
0.055
0.590
0.095
0.060
0.047
0.040
00671
PrtOS-DIS
ORTHO
MG/L P
0.120
0.072
0.025
0.020
0.060
0.060
0.040
0.1 30
00665
PHOS-TOT
MG/L P
0.240
0.140
0.120
0.120
0.205
0.190
0. 130
0.520
-------
STOSET SE1KIEVAL OATt 76/03/10
DATE TIME DEPTH N02&N03
FROM OF
TO DA* FEET
74/12/15 12 13
75/02/08 13 37
75/04/13 11 15
75/04/27 11 30
75/05/18 10 20
75/05/31 12 45
75/06/1^ 13 40
4815H1
33 31 55.0 096 52 20.0 4
H0(3 Cr?EEK
48 15 WHlTESbOrtO
T/GArcZA-LlTTLE ELM RtS
StC KD BPJO 4 MI SE OF COLLINSVILLE
11EHALES 2111204
0000 FEET OEHTH CLASS 00
0630
oN03
OTAL
iG/L
0.800
0.7SC
0.1B5
U.010
1.300
C . 1 1 5
0.125
00625
TOT KjEL
N
MG/L
1.700
0.900
0.900
0.700
1.300
1.200
1.100
00610
NH3-N
TOTAL
MG/L
0.040
0.06C
0.070
0.065
O.OUO
0.055
0.060
00671
r^nOS-DIS
ORTHO
MG/L P
0.035
0.024
0.010
0.010
0.020
0.025
C.015
00665
PHOS-10T
MG/L P
0.120
0.090
0.060
0.060
0.140
0.180
0.105
-------
STOWET KETRIEVAL DATE 75/03/10
4315J1
33 32 05.0 096 48 30.0 4
RANGE CREEK
4.6 }~' WhlTESBORO
T/GAR2A-LITTLE ELM RtS
SEC RO 902 oRUG 2.8 MI
11EPALES
OOOC FEET DEPTH
SE OF ETHEL
2111204
CLASS 00
DATE
FROM
TO
74/11/10
74/12/15
75/02/Orf
75/03/16
75/04/13
75/04/27
75/05/18
75/05/31
75/06/14
75/07/26
TIME DEPTH
OF
UAY FEET
12 15
11 35
12 00
1U 40
10 30
10 30
09 45
11 15
13 00
12 20
00630
N02*>N03
N-TOTAL
MG/L
0.248
0.064
0.720
1.000
0.070
0.095
1.250
0.195
0.085
0.315
00625
TOT KJEL
N
MG/L
0.900
1.400
0.600
3.400
0.500
1.000
1.300
0.750
0.650 '
2.500
00610
NH3-N
TOTAL
MG/L
0.035
0.192
0.040
0.065
0.035
0.070
0.057
0.035
0.025
0.035
00671
PHOS-OIS
ORTHO
MG/L P
0.180
0.115
0.056
0.085
0.025
0.010
0.056
0.060
0.045
0.155
00665
PHOS-TOT
MG/L P
0.365
0.200
0.090
0.070
0.110
0.260
0.140
0.090
0.560
-------
STOhtT RETRIEVAL DATE 76/03/10
4815M
33 26 30.0 096 52 16.0 4
BUCK CrtEFK
48 GRAYSON CO MAP
T/GAR*A-LITTL£ ELM KES
SEC *0 BUDG 3.5 Ml SE OF TIOGft
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
74/11/10
74/12/15
75/01/12
75/02/08
75/03/16
75/04/13
75/«/4/27
75/05/1H
75/05/31
75/06/14
TIME DEPTH
OF
OAY FEET
11 40
11 05
10 35
11 ?0
09 55
09 45
09 30
09 10
09 45
12 40
00630 00625
NG2&N03 TOT KJEL
N-TUTAL N
MG/L MG/L
0.240
0.168
0.232
0.690
1.450 *
0.375
0.550
0.170
0.035
0.110
.500
.400
.000
.700
t.OOC
.C50
.150
.350
.200
.100
00610
NHj-N
TOTAL
MG/L
0.025
0.304
0,040
C.152
0,135
0,075
0.060
0.030
0.075
0.065
00671
PrlOS-OIS
ORTHO
MG/L P
0.240
0.185
0.032
0.128
0.135
0.045
0.020
0.105
0.125
0.075
00665
PHOS-TOT
MG/L P
0.420
0.350
0.120
0.230
0.235
0.120
0.2JO
0.230
0.170
-------
STURET RETRIEVAL DATE 76/03/10
DATE TIME DEPTH N02t>N03
FROM OF
TO DAY FEET
74/09/oa
74/10/06
74/11/10
74/12/15
75/01/13
75/02/08
75/03/lh
75/04/13
75/0-4/27
75/05/ia
75/05/31
75/06/14
75/07/26
75/08/17
13 10
12 50
09 10
11 20
11 00
11 40
10 15
10 00
10 00
09 30
10 30
12 50
12 00
09 30
4815L1
33 27 30.0 096 48 45.0 4
BUCK CKEE*
48 GRAfSON CO MAP
T/GASZA-LITTLE ELM RES
SEC RD 121 BROG 3.b MI W OF GUNTER
11EPALES 2111204
0000 FEET DEPTH CLASS 00
0630
4.N03
OTAL
G/L
0.076
0.600
0.144
0.144
0.272
0.640
1.800
0.375
0.500
0.120
0.06s
0.055
0.050
0.025
00625
TOT KJEL
N
MG/L
1.800
1.200
0.800
1.60C
1.200
1.000
3.530
1.100
.050
.550
.050
.400
.350
0.80C
00610
NH3-N
TOTAL
MG/L
0.160
0.03U
0.020
0.128
0.040
0.096
0.135
0.050
0.035
0.060
0.060
0.050
0.110
0.045
00671
PHOS-DIS
URTHO
MG/L P
0.045
0.120
0.175
0.220
0.072
0.160
0.095
0.065
0.010
0.125
0. IbC
0.110
0.025
0.020
00665
PHOS-TOT
MG/L P
0.195
0.140
0.300
0.340
0.170
0.230
0.220
0.090
0.260
0.270
0.230
0.120
0.120
-------
STORE! RETRIEVAL DATE 76/03/10
OATE TIME DEPTH N02t>N03
FROM OF
TO DAY FEET
74/10/12
7^/11/05
74/12/05
75/01/05
75/02/0^
75/03/0*
75/04/02
75/06/10
75/07/02
75/08/06
75/09/03
10
10
08
09
10
15
11
10
10
10
00
00
30
00
00
00
00
00
00
00
4815BA P04815BA
33 0<« 30.0 097 11 30.0 4
P000700
48253 7.5 SANGER TA
T/GARZA-LITTLE ELM RES.
HICKOKY CREEK
11EPALES 214120<»
0000 FEEF DEPTH CLASS 00
0630
J.N03
OTAL
IG/L
0.040
0.560
1.520
1.280
1.120
0.800
0.720
0.100
0.02S
0.250
O.C75
00625
TOT KJEL
N
MG/L
2.625
8.700
8.300
13.000
7.900
2.200
5.800
10.000
8.900
01610
NH3-N
TOTAL
MG/L
0.110
0.067
0.088
0.140
0.290
0.170
0.250
0.04
-------
STORET RETRIEVAL OATE 76/03/10
4815FA PD4B15FA
33 21 00.0 096 46 00.0 4
GUNTEr* DT>POSAL
48 7.5 GUNTEK TX
T/GAK^A LITTLE ELM RES.
LITTLE ELM CREEK
11EPALES
0000 FEET DEPTH CLASS 00
P000640
DATE TIME DEPTH
FROM OF •
TO OAt FEET
75/03/06
75/05/01
75/05/08
75/06/19 08 00
75/07/08 11 00
75/07/14
75/07/29 13 00
75/09/10
00630
N026.N03
•xl^TCTAL
MG/L
0.160
0.150
0.050
0.050
0.025
0.100
0.025
00625
TOT KJEL
N
MG/L
18.000
).?00
13.000
10.000
8.250
15.000
11.500
00610
NH3-N
TOTAL
MG/L
1.360
0.100
0.090
0.050K
0.025K
0.990
0.390
00671
PHOS-DIS
ORTHO
MG/L P
4.950
1.600
2.800
1.850
1.570
f.600
3.400
00665
PHOS-TOT
MG/L P
5.900
8.500
3.700
2.800
2.200
8.400
4.200
50051
FLOV,
RATE
INST MOD
0.040
0.040
0.037
0.040
0.038
0.040
0.040
0.040
50053
CONDUIT
FLOW-MOD
MONTHLY
0.040
0.040
0.037
0.035
0.042
0.040
0.038
0.040
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! KETKIF.VAL DATE 76/03/10
4815XA PD4fc!l5XA
33 19 00.0 096 47 30.0 4
CELINA
48 7.5 CELINA
T/GAR2A-LITTLE ELM »ES
UNNAMED TRIBUTARY
11EPALLS 2141204
0000 FEET UEPTH CLASS 00
P001272
DATE
FROM
TO
7<+/10/24
74/11/11
74/12/04
75/03/31
75/04/25
75/05/12
75/05/29
75/06/20
75/07/09
75/10/31
TIME 1
OF
DAY 1
16 00
09 30
15 30
14 00
10 00
11 00
13 00
14 00
14 00
14 00
FEET
00630
N02kN03
N-TOTAL
MG/L
1.2BO
0.480
0.160
0.160
0.300
0.100
0.250
0.100
0.100
2.400
00625
TOT KJEL
N
MG/L
11.000
8.600
14.000
19.000
10.000
12.500
3.800
11.500
16.500
19.500
00610
NH3-N
TOTAL
MG/L
0.110
0.050
3.700
2.400
0.220
0.120
0.050K
0.050K
0.530
0.400
00671
PHOS-OIS
ORTHO
MG/L P
3.200
2.800
3.900
2.560
3. BOO
3.700
1.400
2.100
4.200
8.600
00665
PHOS-TOT
MG/L P
4.400
3.400
b.100
3.700
4.900
4.500
11.500
2.900
5.300
10.100
5UUbl
FLOW
RATt
1NST MbU
0.100
0.180
0. 150
0.080
0.137
0.1)0
0.088
0.112
0.127
0.950
50053
CONDUIT
FLOrt-MGU
MONTHLY
0.150
0.165
0.12S
0.10*
0. 107
0.124
0.095
0. 10<»
0.120
0. 104
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL OA1E 76/03/10
DATE TIME DEPTH N02&NG3
FROM OF
TO DAY FEET
74/09/30
74/10/29
74/11/18
74/12/17
75/01/21
75/02/18
75/03/10
75/04/17
75/05/19
75/06/18
75/07/15
75/08/18
75/09/15
10
12
11
10
10
10
10
10
13
10
10
10
14
00
30
30
30
20
30
15
30
40
30
30
40
45
4815YA AS4815YA
33 09 00.0 096 50 00.0 4
COTTONWOCO
48085 7.5 FRISCO
T/GARZA-LITTLE ELM RES
COTTONWOOO CREEK
11EPALES 2141204
0000 FEET DEPTH CLASS 00
P002200
0630
;«»N03
OTAL
IG/L
1.320
5.760
0.080
0.400
o.oao
0.560
0.460
0.700
0.100
0.200
0.025
0.100
n.07b
00625
TOT KJEL
N
MG/L
l.OOOK
10.000
9.500
10.000
16.000
3.500
3.000
1.890
10.000
2.700
21.000
30.000
32.000
00610
NH3-N
TOTAL
MG/L
0.031
0.360
0.100
0.720
0.080K
o.oeoK
0.080K
0.061
0.310
0.050K
9.500
10.500
16.500
00671
PHOS-DIS
OP-THO
Md/L P
1.720
4.200
2.200
1.200
0.200
1,040
5.250
0.460
12.000
11.500
13.000
0066S
PMOS-TOT
MG/L P
1.850
6.200
2.500
2.100
2.600
0.375
0.560
1.175
5.900
0.600
12.000
13.500
15.000
50051
FLOW
SATE
INST MGD
0.150
0.215
0.318
0.310
0.210
0.290
0.250
0.290
0.225
0.275
0.175
0.220
0.190
50053
CONDUIT
FLOW-MGO
MONTHLY
0.200
0.164
0.483
0.314
0.298
0.384
0.216
0.327
0.226
0.282
0.196
0.170
0.181
K VMLUE KNOtfN TO BE
LESS THAN INDICATED
-------
STORtT RETRIEVAL DATE 76/03/1U
PD4815ZA
33 00 00.0 096 50 00.0 4
STEWART C.
------- |