U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
DEGRAY RESERVOIR
CLARK AND HOT SPRING COUNTIES
ARKANSAS
EPA REGION VI
WORKING PAPER No, 485
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
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REPORT
ON
DEGRAY RESERVOIR
CLARK AND HOT SPRING COUNTIES
ARKANSAS
EPA REGION VI
WORKING PAPER No, 485
WITH THE COOPERATION OF THE
ARKANSAS DEPARTMENT OF POLLUTION
CONTROL AND ECOLOGY
AND THE
ARKANSAS NATIONAL GUARD
JANUARY, 1977
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REPORT ON DEGRAY RESERVOIR
CLARK AND HOT SPRING COUNTIES, ARKANSAS
EPA REGION VI
by
National Eutrophication Survey
Water and Land Monitoring Branch
Monitoring Applications Laboratory
Environmental Monitoring & Support Laboratory
Las Vegas, Nevada
and
Eutrophication Survey Branch
Corvallis Environmental Research Laboratory
Corvallis, Oregon
Working Paper No. 485
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
January 1977
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I
CONTENTS
Paq
Foreword ii
List of Arkansas Study Lakes IV
Lake and Drainage Area Map V
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics
III. Lake Water Quality Summary 6
IV. Nutrient Loadings 12
V. Literature RevIewed 18
VI. Appendices 19
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ii
FOREWORD
The National Eutrophication Survey was initiated in 1972 tn
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, concen-
trations, 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 nonpoint source pollution abatement In lake water-
sheds.
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
watershed 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
plannin9 [ 3O3(e)], water quality criteria/standards review
L 3O3(c)], clean lakes [ 3l4(a,b)], and water quality monitoring
[ fl06 and §305(b)] actIvities mandated by the Federal Water
Pollution Control Act Amendments of 1972.
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ill
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condition
are being made to advance the rationale and data base for refine-
ment of nutrient water quality criteria for the Nation’s freshwater
lakes. Likewise, multivariate evaluations for the relationships
between land use, nutrient export, and trophic condition, by lake
class or use, are being developed to assist In the formulation
of planning guidelines and policies by the U.S. Environmental Protection
Agency and to augment plans Implementation by the states.
ACKNOWLEDGMENTS
The staff of the National Eutrophication Survey (Office of
Research and Development, U.S. Environmental Protection Agency)
expresses sincere appreciation to the Arkansas Department of Pollution
Control and Ecology for professional involvement, to the Arkansas
National Guard for conducting the tributary sampling phase of the
urvey, and to those Arkansas wastewater treatment plant operators
who provided effluent samples and flow data.
The staff of the Water Division of the Arkansas Department
of Pollution Control and Ecology provided Invaluable lake documentation
and counsel during the Survey, reviewed the preliminary reports
and provided critiques most useful in the preparation of this Working
Paper series.
Major General Thomas C. Armstrong, the Adjutant General of
Arkansas, and Project Officer Colonel Lavaun M. James, who directed
the volunteer efforts of the Arkansas National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF ARKANSAS
LAKE NAME COUNTY
Beaver Benton, Carroll, Washington
Blackfish Crittenden, St. Francis
Blue Mountain Logan, Yell
Bull Shoals Baxter, Boone, Marion
(Taney, Ozark in MO)
Catherine Garland, Hot Spring
Chicot Chicot
DeGray Clark, Hot Spring
Erling Lafayette
Grand Chicot
Greer’s Ferry Van Buren, Cleburne
Hamilton Garland
Millwood Hempstead, Howard,
Little River, Sevier
Nimrod Perry, Yell
Norfork Baxter, Fulton (Ozark in MO)
Ouachjta Garland, Montgomery
Table Rock Boone, Carroll (Barry,
Taney in MO)
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Fkars
Map Location
DE GRAY RESERVOIR
® Tributary Sampling Site
x Lake Sampling Site
Sewage Tre tn.’ nt Facility
Drainage Area Boundary
2OKso.
0 5 10 Mi.
Scale
93• 45
9315
93.
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REPORT ON DEGRAY RESERVOIR, ARKANSAS
STORET NO. 0507
I. CONCLUSIONS
A. Trophic Condition:
Based upon field observations and Survey data DeGray
Reservoir is considered mesotrophic. Chlorophyll a values
ranged from a low of 1.4 pg/i in the spring to a high of
29.0 pg/i in the summer with a mean of 10.1 pg/i. The
mean Secchi disc reading for the lake was 205 cm (81 inches).
Of the 16 Arkansas lakes sampled in 1974, 11 had greater
median total phosphorus and median inorganic nitrogen values,
and 13 had greater median dissolved orthophosphorus levels
than DeGray Reservoir.
Survey limnologists did not observe any nuisance
conditions during their visits to the lake.
B. Rate-Limiting Nutrient:
Algal assay results indicate that DeGray Reservoir
is limited by available phosphorus. Spikes with phosphorus
alone or nitrogen and phosphorus simultaneously resulted in
increased assay yields. The addition of nitrogen alone did
not produce a growth response. The ratios of total inorganic
nitrogen to orthophosphorus (NIP) in the lake data suggest
nitrogen limitation in the spring and phosphorus limitation
in the summer and fall.
*See Appendix E
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2
C. Nutrient Controllability:
1. Point sources -
The mean annual phosphorus load from point sources was
estimated to be 10.6% of the total load reaching DeGray Reser-
voir. The city of Glenwood contributed this entire point source
load.
The present phosphorus loading of 0.22 g P/m 2 /yr is less
than that proposed by Vollenweider (1975) as an oligotrophic
rate (see Section IV-F). However, summer chlorophyll a values
in the lake (18.9 - 29.0 pg/i) indicate a much higher biological
response to existing nutrient levels than would ordinarily be
expected. In light of this demonstrated increase in summer
lake productivity, it would be desirable to reduce phosphorus
contributions from the city of Glenwood to the greatest prac-
ticable extent in order to protect the existing high water
quality of DeGray Reservoir.
Loading calculations based upon ayailable nutrient con-
centrations yield an apparent net export of nitrogen from the
impoundment, indicating that sampling was not adequate to de-
pict actual loading and/or export rates of that nutrient.
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3
2. Nonpoint sources -
Nonpoint sources contributed 88.3% of the phosphorus load
reaching DeGray Reservoir. Measured tributaries accounted for
64.8% of the total phosphorus load and the ungaged tributaries
were estimated to contribute 15.1%.
The nonpoint phosphorus exports (Section IV-D) of the
Caddo River, Whitener Creek, and Big Hill Creek are quite com-
parable to the exports of the unimpacted tributaries of nearby
Ouachita, Hamilton, and Catherine Lakes (mean of 10 kg P/km 2 /yr,
range of 6 to 19 kg P/km 2 /yr).
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4
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
Lake and drainage basin characteristics are itemized below.
Lake morphometry was provided by the Arkansas Department of Pol-
lution Control and Ecology. Tributary flow data were provided by
the Arkansas District Office of the U.S. Geological Survey (USGS).
Outlet drainage area includes the lake surface area. Mean hydrau-
lic retention time was obtained by dividing the lake volume by the
mean flow of the outlet. Precipitation values are estimated by
methods as outlined in National Eutrophication Survey (NES) Working
Paper No. 175. A table of metric/English conversions is included
as Appendix A.
A. Lake Morphometry:
1. Surface area: 54.23 km 2 .
2. Mean depth: 14.9 meters.
3. Maximum depth: 60.3 meters.
4. Volume: 807.566 x 106 m 3 .
5. Mean hydraulic retention time: 477 days.
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5
B. Tributary and Outlet:
(See Appendix B for flow data)
1. Tributaries —
Drainag Mean flow
Name area(km ) ( m 3 /sec )
A-2 Caddo River 784.8 13.88
D-1 Whitener Creek 19.7 0.26
F-l Big Hill Creek 18.1 0.27
Minor tributaries and
immediate drainage - 296.5 5.33
Totals 1,119.1 19.74
2. Outlet - A-l Caddo River 1,173.3 19.58
C. Precipitation:
1. Year of sampling: 169.5 cm.
2. Mean annual: 133.5 cm.
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6
III. LAKE WATER QUALITY SUMMARY
DeGray Reservoir was sampled three times during the open-
water season of 1974 by means of a pontoon-equipped Huey heli-
copter. Each time, samples for physical and chemical parameters
were collected from six stations on the lake (Station 06 was not
sampled the second round) and from a number of depths at each
station (see map, page v). During each visit, depth-integrated
samples were collected from each station for chlorophyll aanaly-
sis and phytoplankton identification and enumeration. During the
first and last visits, 18.9-liter depth-integrated samples were
composited for algal assays. Maximum depths sampled were 50.6 meters
at Station 01, 38.1 meters at Station 02, 9.8 meters at Station 03,
14.6 meters at Station 04, 12.2 meters at Station 05, and 9.1 meters
at Station 06. For a more detailed explanation of NES methods, see
NES Working Paper No. 175.
The results obtained are presented in full in Appendix C and
are summarized in 111-A for waters at the surface and at the maximum
depth for each site. Results of the phytoplankton counts and chloro-
phyll a determinations are included in I l l-B. Results of the limiting
nutrient study are presented in Ill-C.
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OE AY kESE VOIR
STORET CODE 0507 PriYSICAL AND CHEMICAL CHARACTERISTICS
5, 5/7k ) I 3/25/14
MAX MAX
= S OEi TH S** 6 DEPTH
RAN6E I ANGE
PA?A ’ETER N* RANGE MEDIAN (METE’ S) P * HANGE MEDIAN (METERS)
* N = NO. (if SAMPLES
** MAXIMUM DEPTH SAMi LED AT EACH SI’I
S = NO. OF SITES SAMPLED ON T -4IS DATE
10/16/74
s... =
MAX
DEPTH
RANGE
RANGE MEDIAN (METERS)
TEMPERATUHE (DE(, CENT)
17.5— 21.3
20.0
0.0— 1.5
M DEPTH 16
MAX DEPTH** 5
24.1— 26.4
7.7— 18.2
26.0
12.7
0.0— 1.5 12
9.8— 50.0 6
12.1— 13.3
7.8— 12.7
12.6
10.5
0.0—
9.1— 47.2
6
8.0— 19.3
14.8
7.6— 50.6
DISSOLVED OAYGEN (MG/L)
1.5
12
6.2— 8.4
7.8
0.0— 1.5
o .—1.5 DEPTH 7
MAX OEPTH** 5
7.8— 8.2
0.2- 3.6
8.0
1.2
1.5— 1.5 6
9.8— bO.O 6
9.0— 10.0
4.6— 9.4
9.5
7.4
9.1— 47.2
6
0.0— 6.0
0.4
7.6— 50.6
CONDUCTIVITY (UMMOS)
0.—1.5 N OEJ. TH 16
56.— 99.
95.
0.0— 1.5 12
31.— 47.
33.
0.0— 1.5
47.2
12
6
27.— 63.
35.— 109.
38.
52.
0.0— 1.5
7.6— 50.6
MAX DEPTM** 5
42. 109.
85.
9.8— 50.0 6
28.— 47.
32.
PH (STA ’JD4RO UNITS)
6.2— 7.1
6.6
0.0— 1.5
o.—1.S ii DE 1H 16
7.4— 8.8
7.6
0.0— 1.5 12
6.9— 7.3
7.0
0.0—
47.2
6
6.1— 6.8
6.4
7.6— 50.6
MAX DEPTH** 5
6.2— 6.5
6.3
9.8— 50.0 6
6.2— 7.1
6.6
TOTAL ALKALINITY (MG/U
-
19.— 37.
23.
0.0— 1.5
O .—1.S N DEPTH 10
1g.— 27.
25.
0.0— 1.5 12
18.— 27.
21.
0.0— 1.5
12
20.— 46.
31.
1.6— 50.6
MAX DEPTII** S
21.— 37.
26.
9.8— 50.0 5
16.— 26.
18.
9.1—
TOTAL P (MG/L)
0.022
0.0— 1.5
O.—1.5 N DEPIPI 10
0.013—0.028
0.018
0.0— 1.5 12
0.012—0.02.
0.015
0.0— 1.5
12
6
0.019—0.247
0.077
7.6— 50.6
MAX DEI. TM** 5
0.013—0.047
0,020
9.8— 50,0 5
0.016—0.117
0.021
9.1—
DISSOLVED ORTHO P (MG/I)
0.003—0.005
0.003
0.0— 1.5
0.—1. N DE,STH 10
MAX DEPTH** S
0.002—0.012
0.0020.009
0.002
0.003
0.0— 1.5 12
9.8— 50.0 5
0.012—0.015
0.014—0.018
0.014
0.016
0.0—
9.1— 47.2
6
0.003—0.031
0.005
7.6— 50.6
N02 .N03 (MG/L)
1.5
12
0.020—0.030
0.020
0.0— 1.5
O,—l. N OEPTrI 10
0.020—0.120
0.060
0.0— 1.5 12
0.050—0.140
0.095
0.0—
47.2
6
0.020—0.030
0.020
7.6— 50.6
MAX UEPTII** 5
0.060—0.300
0.280
9.8— 50.0 5
0.040—0.260
0.150
AMMONIA (MG/I)
0.020—0.050
0.030
0.0— 1.5
0.—1.5 M UEPTH 10
0.030—0.060
0,040
0.0— 1.5 12
0.020—0.060
0.030
0.0—
6
0.030—2.160
0.525
7.6— 50.6
MAX DEPTM** 5
0.050—0.520
0.090
9,8— 50.0 5
0.040—0.070
0.040
9.1—
KJELOAHL N (MG/L)
1.5
1?
0.200—0.600
0.400
0.0— 1.5
0,—1,5 N DEPTH 10
MAX OEPTH** 5
0.200—0.600
0.200—0.700
0.300
0.200
0.0— 1.5 12
9.8— 50.0 5
0.200—0.400
0.200—0.500
0.300
0.200
0.0—
9.1— 47.2
6
0.200—2.400
0.950
7.6— 50.6
SECCHI DISC (METERS)
3.7
1.2— 3.1
2.3
8
1.6— 2.3
2.1
6
0.4—
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8
B. Biological Characteristics:
1. Phytoplankton -
Al gal
Sampling Dominant Units
Date Genera per ml
03/25/74 1. Ankistrodesmus 287
2. Dynobryon 223
3. Me1os ra 191
4. Asterionella 159
5. Tabellaria 159
Other genera 606
Total 1,625
06/03,05/74 1. Tabellaria 6,083
2. Melosira 1,182
3. Chroomonas 634
4. Aphanizomenon 317
5. Oscillatoria 317
Other genera 663
Total 9,196
10/16/74 1. Nitzschia 238
2. Ankistrodesmus 214
3. Chroomonas 214
4. Mougeotia 167
5. Raphidiopsis 143
Other genera 1 ,002
Total 1 ,978
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9
2. Chlorophyll a -
Sampling Station Chlorophyll a
Date Number ( pg/i )
03/25/74 01 2.6
02 2.5
03 3.1
04 2.5
05 3.0
06 1.4
06/03/74 01 23.3
02 29.0
03 18.9
04 25.3
05 22.1
06 - -- -
10/16/74 01 4.4
02 3.5
03 3.8
04 5.9
05 9.7
06 11.1
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10
C. Limiting Nutrient Study:
1. Autociaved, filtered, and nutrient spiked
a. 03/25/74 - Stations 01—04
Spi ke(mg/l )
Ortho P
Conc. (mg/i )
Inorganic N
Conc. (mg/i )
Maximum Yield
( mg/i-dry wt. )
Spike(mg/1 )
Ortho P
Conc. (mg/i )
Inorganic N
Conc. (mg/i )
Maximum Yield
( mg/i-dry wt. )
Spike(mg/l )
Ortho P
Conc. (mg/i )
Inorganic P
Conc. (mg/1j
Maximum Yield
( mg/i-dry wt. )
Spike(mg/1 )
Ortho P
Conc. (mg/i )
Inorganic N
Conc. (mg/i )
Maximum Yield
( mg/i-dry wt. )
Control
0.010
0.161
0.1
0.05
p
0.060
0.161
3.8
0.05
P +
1.0 N
0.060
1.161
22.8
1.00
N
0.010
1.161
0.1
b.
03/25/74
- Stations 05-06
Control
0.005
0.088
0.1
0.05
P
0.055
0.088
3.1
0.05
P +
1.0 N
0.055
1.088
24.8
1.00
N
0.005
1.088
0.1
c.
10/16/74 -
Stations 01-03
Control
0.007
0.155
0.3
0.05
p
0.057
0.155
1.1
0.05
P + 1.0 N
0.057
1.i55
3.8
1.00
N
0.007
1.155
0.3
d.
10/16/74
- Stations 04-06
Control
0.010
0.113
0.4
0.05
P
0.060
0.113
2.4
0.05
p + 1.0
N
0.060
1.113
10.6
1.00
N
0.010
1.113
0.4
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11
2. Discussion —
The control yield of the assay alga, Selenastrum capri—
cornutum , indicates that the potential for primary produc-
tion was low on DeGray Reservoir during the spring and fall
sampling periods. The lake was phosphorus limited at those
times as indicated by the increased yield of the test alga
in response to an addition of orthophosphorus. Spikes with
phosphorus and nitrogen simultaneously resulted in maximum
yields. Spikes with nitrogen alone did not produce a re-
sponse beyond the control yield.
The mean total available inorganic nitrogen to ortho-
phosphorus ratio in the spring lake data was 11/1, suggesting
primary limitation by nitrogen. The ratios for the summer
and fall data were 49/1 and 38/1, respectively, suggesting
phosphorus limitation at those times (an N/P ratio of 14/1
or greater generally reflects phosphorus limitation).
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12
IV. NUTRIENT LOADINGS
(See Appendix D for data)
For the determination of nutrient loadings, the Arkansas
National Guard collected monthly near-surface grab samples from
each of the tributary sites indicated on the map (page v), ex-
cept for the high runoff months of March and April when two sam-
ples were collected. Sampling was begun in June 1974, and was
completed in May 1975.
Through an interagency agreement, stream flow estimates for
the year of sampling and a “normalized” or average year were pro-
vided by the Arkansas District Office of the USGS for the tribu-
tary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a USGS computer program for
calculating stream loadings. Nutrient loads indicated for tribu-
taries are those measured minus known point source loads, if any.
Nutrient loadings for unsampled “minor tributaries and imme-
diate drainage” (“ZZ” of USGS) were estimated by using the mean
annual nutrient loads, in kg/km 2 /yr, in Whitener Creek and Big
Hill Creek at Stations D-l and F-l, and multiplying the means by
the ZZ area in km 2 .
Nutrient loads for the city of Glenwood wastewater treatment
plant were estimated at 1.134 kg P and 3.401 kg N/Capita/yr.
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13
A. Waste Sources:
1. Known municipal -
Population Mean Flow Receiving
Name Served* Treatment* ( m 3 /d x 103) Water
Glenwood 1,212 Stabilization 0.459** Caddo River
pond
2. Known Industrial - None
EPA, 1971.
**Estimated at 0.3785 m 3 /capita/day.
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14
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Source kg P/yr total
a. Tributaries (nonpoint load) —
A-2 Caddo River 7,395 62.9
D-1 Whitener Creek 100 0.9
F-i Big Hill Creek 120 1.0
b. Minor tributaries and immediate
drainage (nonpoint load) - 1,780 15.1
c. Known municipal SIP’s -
Glenwôod 1,375 11.7
d. Septic tanks* - 30 0.3
e. Known industrial - None
f. Direct precipitation** - 950 8.1
Total 11,750 100.0
2. Output - A-i Caddo River 10,270
3. Net annual P accumulation - 1 ,480
*Estimate based on 24 lakeside residences, 12 camps, and 1 park.
**Estimated (see NES Working Paper No. 175).
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15
C. Annual Total Nitrogen Loading - Average Year:
1.
Inputs -
Source
a.
Tributaries (nonpoint load) -
A-2 Caddo River
D-l Whitener Creek
F-i Big Hill Creek
b. Minor tributaries and immediate
drainage (nonpoint load) — 25,795
c. Known municipal SIP’s -
% of
kg N/yr total
100,545
1 ,330
1 ,920
52.0
0.7
1 .0
13.3
2.1
0.6
30.3
100.0
Glenwood
d. Septic tanks* -
e. Known industrial - None
f. Direct precipitation** -
Total
2. Output - A-i Caddo River
3. Net annual N export*** -
4,120
1 ,135
58,545
193,390
268,460
75,070
*Estjmate based on 24 lakeside residences, 12 camps, and 1 park.
**Estjmated (see NES Working Paper No. 175).
***Export probably due to unknown sources and/or sampling error.
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16
D.
E.
Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
Tributary kg P/km 2 /yr kg N/km 2 /yr
Caddo River 9 128
Whitener Creek 5 68
Big Hill Creek 7 106
Mean Nutrient Concentrations in Ungaged Streams:
Mean Total P Mean Total N
Tributary (mg/l) (mg/i)
B-i Long Creek 0.022 0.238
C-i Brushy Creek 0.020 0.414
E—1 Philippi Creek 0.015 0.364
G-1 Point Cedar Creek 0.022 0.245
Nutrient concentrations for the above tributaries are consistent
with those found for the gaged tributaries entering DeGray Reservoir.
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17
F. Yearly Loadings:
In the following table, the existing phosphorus annual
loading is compared to the relationship proposed by Vollenweider
(1975). Essentially, his eutrophic loading is that at which
the receiving waters would become eutrophic or remain eutrophic;
his oligotrophic loading is that which would result in the
receiving water remaining oligotrophic or becoming oligotrophic
if morphometry permitted. A mesotrophic loading would be
considered one between eutrophic and oligotrophic.
Note that Vollenweider’s model may not apply to lakes with
short hydraulic retention times or in which light penetration is
severely restricted by high concentrations of suspended solids
in the surface waters.
Total Yearly
Phosphorus Loading
(g/m 2 /yr)
Estimated loading for DeGray Reservoir 0.22
Vollenweider’s eutrophic loading 0.64
Vollenweider’s oligotrophic loading 0.32
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18
V. LITERATURE REVIEWED
U.S. Environmental Protection Agency 1971, A 1968 Inventory of Muni-
cipal Waste Facilities . EPA Publication No. OWP-1, Vol. 6. U.s.
Government Printing Office, Washington, D.C.
U.S. Environmental Protection Agency.
Survey Methods 1973-1976. Working
mental Research Center, Las Vegas,
Environmental Research Laboratory,
1975. National Eutrophication
Paper No. 175. National Environ-
Nevada, and Pacific Northwest
Corvallis, Oregon.
Vollenweider, R. A. 1975. Input-Output Models With SpecIal Reference
to the Phosphorus Loading Concept in Limnology. Schweiz. Z. Hydrol.
37:53-84.
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19
VI. APPENDICES
APPENDIX A
CONVERSION FACTORS
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CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 feet
Cubic meters x 8.107 x lO = acre/feet
Square kilometers x 0.3861 square miles
Cubic meters/sec x 35.315 cubic feet/sec
Centimeters x 0.3937 = inches
Ki1ogran ; x 2.205 = pounds
Kilograms/squdre kilometer x 5.711 = lbs/square mile
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APPENDIX B
TRIBUTARY FLOW DATA
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TqJ8UTARY rLO I1 FOHMATI0N FU A ANSAS 021tj2/77
LANE CODE 0507 DEG AY RESE OIR
TOTAL OPAINAGE AkEA OF LA’cE(SU
-------
TRI 1T R’v FLOt INFORMATION FUR ARr ANSAS 02/02/77
LA E CODE U 07 DEGR Y RESERVOIR
FIEAN MONTi-4LV FLO S AND uAILY FLJWS(CMS)
TPIBUTA Y MONTh YEAR MEAN FLOW DAY FLOW DAY FLOW AY FL )W
0u7D1 6 74 1.962 22 0.01’.
7 74 0.062 20 0.014
8 74 0.167 17 0.014
9 74 0.45b 21 0.113
10 74 0.263 19 0.023
ii 74 1.331 23 0.283
12 74 0.527 21 0.283
1 75 0,422 18 0.34I.
2 75 0.985 22 0.227
3 75 1.121 8 0.113 22 0.566
4 75 0.396 7 0.680 19 0.227
5 • 75 0.866 }7 0.170
0507F1 6 74 1.807 22 0.212
7 74 0.057 20 0.034
8 74 0.153 17 0.028
9 74 0.419 21 0.142-
10 74 0.244 19 0.071
11 74 1.218 23 3.227
12 74 0,484 21 0.227
1 75 0.388 18 0.227
2 75 0.906 22 0.198
3 75 1.034 8 0.142 22 0.311
4 75 0.368 7 0.623 19 0.198
5 75 0.799 17 0.170
0507ZZ 6 74 35.113 22 5.947
7 74 1.119 20 0.566
8 74 2.973 17 2.775
9 74 8.127 21 1.048
10 74 4.701 19 1.161
11 74 23.560 23 5.7 .d
12 74 9.401 21 3.823
1 75 7.504 18 4.248
2 75 17.528 22 12.035
3 75 19.992 8 5.663 22 10.760
4 75 7.136 7 12.459 19 4.248
5 75 15.433 17 3.823
-------
APPENDIX C
PHYSICAL AND CHEMICAL DATA
-------
STORET ETRIEVAL DATE 77/02/02
050701
34 12 46.0 093 06 38.0 3
DEGRAY RES. OIR
05019 ARKANSAS
101791
/TYPA/AMBNT/LAKE 1 1EPs ES 04001002
0200 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 1 ALK NH3—N TOT KJEL NO2bNO3 PrIOS—i)IS
FROM OF TEMP SECCIII FIELD CACO3 TOTAL N N—TOTAL ORTpIO
TO UAY FEET CENT MG/L INCHES MICROMHO So MG/L M(,/L MG/L MG/I MG/L P
72/05/05 13 70 0000 24.8 64 88 7.50
13 70 0005 24.1 8.0 87 7.40
13 70 0015 24.5 7.6 81 6.75
13 70 0035 15.4 5.6 72 6.40
13 70 0055 9.4 5.2 64 6.4u
13 70 0100 8.0 3.8 64 6.30
13 70 0164 7.7 3.6 70 6.20
74/03/25 13 40 0000 12.5 14 33 7.00 19 0.030 0.400 0.140 0.014
13 40 0005 12.1 9.8 31 7.00 18 0.020 0.300 0.140 0.012
- 13 40 0045 9.0 8.6 27 6.60 15 0.030 0.200 0.190 0.0 12
13 40 0070 8.5 8.0 27 6.50 14 0.040 0.200 0.210 0.007
13 40 0155 8.0 6.0 28 6.30 16 0.040 0.500 0.260 0.018
74/06/05 13 10 0000 24.8 64 88 7.50 24 0.060 0.600 0.060 0.012
13 10 0005 24.1 8.0 87 7.40 23 0.040 0.200 0.050 0.009
13 10 0015 24.5 7.6 81 6.75 29 0.050 0.2001< 0.060 0.009
13 10 0035 15.4 5.6 72 6.40 24 0.040 0.2001< 0.240 0.003
13 10 0055 9.4 5.2 64 6.40 25 0.050 0.200K 0.270 0.007
13 10 0100 8.0 3.8 64 6.30 26 0.040 0.2001< 0.310 0.002
13 10 0164 7.7 3.6 70 6.20 27 0.090 0.200K 0.300 0.002
74/10/16 16 00 0000 20.6 8.0 122 27 6.61 22 0.040 0.600 0.020K 0.003
16 00 0005 20.6 8.0 27 6.49 20 0.0201< 0.400 0.020K 0.003
16 00 0020 20.0 8.2 25 6.31 19 0.0201< 0.400 0.0201< 0.004
16 00 0040 15.9 0.6 9 5.59 24 0.020 0.400 0.0201< 0.00’.
16 03 0050 11.5 0.6 8 5.76 22 0.020K 0.300 0.220 0.002
16 00 0070 8.8 2.0 11 5.87 22 0.020K 0.200K 0.270 0.003
16 00 0100 8.0 1.4 69 5.91 22 0.0201< 0.200 0.300 0.002
16 00 0120 7.8 0.6 10 5.97 23 0.030 0.2001< 0.300 0.002
16 00 0140 7.9 0.4 27 6.33 30 0.240 0.400 0.150 0.002
16 00 0166 8.0 0.4 43 6.57 46 0.700 1.000 0.020 0.003
K VALUE ,ct iOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 77/02/02
050701
3412 46.0 093 06 38.0 3
OEG AY RE5 .r VOjR
05019 ARKANSAS
101791
ITYPA/AMSNT/LAicE 1 IEPALES 04001002
0200 FEET DEPTH CLASS 00
00665 32217 00031
DATE TIME DEPTH PHOS—TOT CHLRPI-4YL INCOT LI
FROM OF A HENNING
TO DAY FEET MG/L P UG/L PERCENT
72/05/05 13 70 0000 23.3
74/03/25 13 40 0000 0.014 2.6
13 40 0005 0.012
13 40 0045 0.011
13 40 0070 0.010
13 40 0155 0.117
74/06/05 13 10 0000 0.019 23.3
13 10 0005 C.016
13 10 0015 0.015
13 10 0035 0.012
13 10 0055 0.009
13 10 0100 0.009
13 10 0164 0.020
74/10/16 16 00 0000 0.021 4,4
16 00 0005 0.017
16 00 0012 1.0
16 00 0020 0.012
16 00 0040 0.019
16 00 0050 0.010
16 0o 0070 0.009
16 00 0100 0.010
16 00 0120 0.011
16 00 0140 0.013
16 00 0166 0.061
-------
STO ET F ETRIEvAL DATE 77/02/02
050702
34 14 37.0 093 10 59.0 3
DEGRAY RESLrCVOIR
05019 APIcANSAS
101791
/TYPA/AMBNT/LAKE 1 IEPALES 04001002
0119 FEET DEPTH CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 1 ALK NH3—N TOT KJEL N02&N03 PHOS—OIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N ‘i—TOTAL ORTHO
TO DAY FEET CENT M6/L INCHES MICROMHO SU MG/L MG/L P4G/L M&/L MG/L P
74/03/25 14 10 0000 13.1 121 31 7.00 20 0.030 0.400 0.120 0.014
14 10 0005 12.6 10.0 31 7.00 25 0.020 0.300 0.120 0.014
14 10 0050 9.9 6.4 29 6.60 25 0.030 0.200 0.180 0.014
14 10 0110 7.8 4.6 29 6.20 23 0.040 0.200 0.250 0.016
74/06/03 15 37 0000- 26.3 84 56 8.80 22 0.040 0.500 0.020 0.003
15 37 0005 26.2 7.8 56 8.30 18 0.030 0.400 0.030 0.003
15 37 0020 23.1 3.4 55 6. 0 22 0.040 0.400 0.050 0.002K
15 37 0035 15.7 4.2 44 6.60 19 0.020 0.200 0.210 0.002K
15 37 0050 11.3 2.8 43 6.50 19 0.020 0.300 0.250 0.002
15370075 8.5 2.2 38 6.50 19 0.040 0.300 0.290 0.003
15 37 0125 7.7 1.4 42 6.40 21 0.050 0.400 0.280 0.002
74/10/17 14 35 0000 19.7 7.4 96 33 6.38 23 0.020K 0.300 0.0201< 0.003
14 35 0005 19.7 7.4 35 6.33 22 0.020 0.200K 0.020K 0.004
14 35 0020 19.6 7.0 29 6.15 22 0.020 0.200K 0.0201< 0.004
14 35 0035 19.1 6.4 25 5.77 21 0.030 0.2001< 0.0201< 0.003
14 35 0040 15.9 0.2 33 5.91 26 0.090 0.2001< 0.0201< 0.008
14 35 0050 11.6 0.4 27 5.97 2’ 0.100 0.2001< 0.0201< 0.008
14 35 0060 9.8 0.4 27 6.09 26 0.200 0.2001< 0.0201< 0.023
14 35 0070 9.0 0.2 31 6.21 26 0.260 0.400 0.0201< 0.041
14 35 0096 8.4 0.2 37 6.31 30 0.350 0.600 0.020 1< 0.031
K VALUE KNOWN TO E
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 77/02/02
050702
34 14 37.0 093 10 59.0 3
DEGRAY RESrj VO1R
05019 ARKANSAS
101791
/1YPA/AM NT/LAKE I1EPALES - 04001002
0119 FEET DEPTIl CLASS 00
00665 32217 00031
DATE TIME DEPTH. PHOS—TOT CHLRPPIYL INCDT LT
FROM OF A REMNING
TO DAY FEET MG/L P LJG/L PERCENT
74/03/25 14 10 0000 0.016 2.5
14 10 0005 0.014
14 10 0050 0.015
14 10 0110 0.016
74/06/03 15 37 0000 0.024 29.0
15 37 0005 0.022
15 37 0020 0.022
15 37 0035 0.016
15 37 0050 0.015
15 37 0075 0.017
15 37 0125 0.047
74/10/17 14 35 0000 0.018 3.5
14 35 0005 0.019
14 35 0013 1.0
14 35 0020 0.018
14 35 0035 0.023
14 35 0040 0.022
14 35 0050 0.020
14 35 0060 0.038
14 35 0070 0.054
14 35 0096 0.093
-------
STORET €TRIEVAL DATE 77/02/02
050703
34 14 15.0 093 14 56.0 3
DEGRAY RE5c VU1
05019 ARKANSAS -
/TYPA/AMBNT/LAKE
1 1EPALES
0034 FEET
04001002
DEPT11 CLASS 00
74/03/25 14 30 0000
14 30 0005
74/06/05 14 55 0000
14 55 0005
14 55 0015
14 55 0025
14 55 0032
74/10/17 14 10 0000
14 10 0005
14 10 0013
14 10 0020
14 10 0030
00665 32217
DEPTH P1105—TOT CIILRPHYL
A
MG/L P UG/L.
0.0 15
0.0 14
0.023
0 • 028
0.016
0.0 17
0.0 16
0.0 24
0.026
0.020
0.0 19
00031
INCDT LT
REMN ING
PERCENT
1.0
00010
00300
00077
00094
00400
00’.10
00610
00625
DATE
TIME
DEPT-I
WATER
DO
TRANSP
CNDUCTYY
PH
T ALK
NHJ—N
TOT KJEL
N02&N03
PHOS—UIS
FROM
OF
TEMP
SECCHI
FIELD
CACQ3
TOTAL
N
N—TOTAL
ORTHO
TO
DAY
FEET
CENT
MG/L
INCIsES
MICRONS-SO
SU
MG/L
MG/L
MG/L
MG/L
MG/L P
74/03/25
14 30 0000
13.3
84
31
6.90
23
0.030
0.400
0.110
0.014
14 30 0005
12.9
9.2
31
6.90
21
0.040
0.300
0.110
0.014
14 30 0030
12.7
9.4
31
6.80
74/06/05
14 55 0000
26.4
80
95
7.60
25
0.050
0.200
0.120
0.002
14 cs 0005
26.2
8.0
94
7.55
24
0.040
0.200
0.070
0.002
14 55 0015
24.6
4.2
88
6.50
25
0.110
0.200
U.120
0.005
14 55 002S
21.2
1.0
86
6.50
24
0.070
0.200”
0.160
0.002 1 <
14 55 0032
18.2
1.0
86
6.35
26
0.090
0.2001<
0.180
0.003
74/10/17
14 10 0000
19.6
6.6
84
33
6.19
21
0.030
0.500
0.0201<
0.004
14 10 0003
19.6
6,2
33
6.19
14 10 0005
19
0.0201<
0.300
0.0201<
0.003
14 10 0020
19.4
6.0
33
6.09
20
0.020
0.200K
0.020K
0.003
14 10 0030
19.3
6.0
35
6.09
20
0.030
0.200
0.0201<
0.003
DATE —TIHE
FROM OF
TO DAY FEET
3.1
18.9
3.8
K VALUE.KNOWN TO BE
LESS THAN INDICATED
-------
STORET RE:TRIEVAL DATE 77/02/02
050704
34 15 34.0 093 13 07.0 3
DEGRAY RES vOIR
05019 ARKANSAS
101791
/TYPA/A’4BNT/LAKE
I IEP ALES
0052 FEET
04001002
DEPTh CLASS 00
00010
00300
00077
00094
00400
00410
00610
00625
00630
00671
WATER
DO
TRANSP
CNOUCTVY
PH
1
ALK
NH3—N
TOT
IcJEL
NO2 NO3
Ph )S—0IS
TEMP
SECCHI
FIELD
CACO3
TOTAL
N
N—TOTAL
ORTHO
CENT
MG/L
INCHES
MICROMHO
SU
MG/L
MG/L
MG/L
MG/L
MG/L P
DATE
TIME DEPTH
FROM
OF
TO
DAY
FEET
72/05/05
15
25 0000
26.0
90
98
7.60
15
25 0005
25.9
8.2
95
7.70
15
25 0015
25.4
7.4
91
7.30
15
25 0030
17.6
1.4
82
6.35
15
25 0048
12.7
1.2
85
6.3t)
72/06/05
15
25 0000
26.0
90
98
7.63
15
25 0005
25.9
8.2
95
7.70
15
25 0015
25.4
7.4
91
7.30
15
25 0030
17.6
1.4
82
6.35
15
25 0048
12.7
1.2
85
6.30
74/03/25
14
40 0000
12.8
144
34
7.25
22
.0.030
0.300
0.080
0.014
14
40 0005
12.6
10.0
33
7.25
19
0.040
0.300
0.080
0.015
14
40 0045
10.2
8.0
32
6.65
18
0.040
0.200
0.150
0.015
74/06/OS
15
25 0000
26.0
90
98
7.60
25
0.040
0.400
0.060
0.002K
15
25 0005
25.9
8.2
95
7.70
25
0.040
0.200
0.040
0.002K
15
25 0015
25.4
7.4
•
91
7.30
28
0.040
0.200
0.070
0.003
15
25 0030
17.6
1.4
82
6.35
24
0.050
0.200i<
0.200
0.004
15
25 0048
12.7
1.2
85
6.30
26
0.070
0.200K
0.280
0.005
74/10/17
15
25 0000
20.0
7.8
96
41
6.59
26
0.030
0.400
0.020K
0.005
15
25 0005
20.0
7.6
41
6.58
23
0.020K
0.300
0.020K
0.004
15
25 0015
19.7
7.2
39
6.45
25
0.040
0.200
0.020K
0.008
15
25 0025
19.6
6.6
39
6.37
25
0.030
0.200K
0.020K
0.005
15
2S 0035
18.9
2.8
49
6.12
28
0.460
0.500
0.020
0.011
15
25 0046
13.7
0.0
61
6.35
31
0.730
1.900
0.020K
0.009
K VALUE KNOW”l TO E
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 77/02/02
050704
34 15 34.0 093 13 07.0 3
DEG AY RESt vOIR
05019 A IcANSAS
101791
/TYPA/AMBNT/LAI E 1IEPALES 04001002
0052 FEET DEPTH CLASS 00
00665 32217 00031
DATE TIME DEPTH PHOS-TOT CIILRPHYL INCOT LT
FROM OF A REMNING
TO DAY FEET MG/L P UG/L PERCENT
72/05/05 15 25 0000 25.3
72/06/05 15 25 0000 25.3
74/03/25 14 40 0000 0.014 2.5
14 40 0005 0.015
14 40 0045 0.021
74/06/05 15 25 0000 0.013 25.3
15 25 0005 0.017
15 25 0015 0.014
15 25 0030 0.022
15 25 0048 0.013
74/10/17 15 25 0000 0.023 5.9
15 25 0001 50.0
15 25 0005 0.022
15 25 0011 1.0
15 25 0015 0.022
15 25 0025 0.023
15 25 0035 0.039
15 25 0046 0.247
-------
STORET RETRIEVAL DATE 77 02/02
050705
34 17 11.0 093 15 21.0 3
DEGRAY RESC VOIR
05059 ANKANSAS
101791
/TYPA/AMBNT/LAKE 1 1EPALES 04001002
0040 FEET DEPTh CLASS 00
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 1 ALK NH3—N TOT KJEL NO2 NO3 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTHO
TO DAY FEET CENT MG/I INCHES MICROMPIO SU MG/I MG/I MG/L MG/L MG/I P
74/03/25 15 00 0000 12.6 66 35 7.05 18 0.030 0.300 0.070 0.014
15 00 0005 12.’. 9.2 36 7.00 18 0.030 0.200 0.060 0.013
15 00 0035 10.8 6.8 36 6.55 16 0.060 0.200 0.120 0.014
74/06/05 16 00 0000 26.2 68 99 7.90 27 0.050 0.400 0.100 0.004
16 00 0005 26.0 98 8.30 25 0.040 0.200 0.060 0.002K
16 00 0012 25.7 7.4 96 7.60 26 0.060 0.200 0.070 0.004
16 00 0020 22.2 90. 6.60 25 0.540 0.700 0.060 0.009
16 00 0040 14.4 0.2 109 6.50 37 0.520 0.700 0.060 0.009
74/ 10/17 15 50 0000 21.3 8.0 66 51 6.79 29 0.030 0.500 0.020K 0.004
15 50 0005 20.9 7.8 51 6.81 26 0.050 0.200 0.020K 0.003
15 50 0020 19.7 6.4 49 6.49 24 0.050 0.200K 0.020K 0.003
15 50 0030 19.S 4.0 49 6.47 23 0.780 1.200 0.020K 0.004
15 50 0039 15.8 0.4 109 6.45 31 2.160 2.400 0.030 0.006
K VRLUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE: 77/02/02
050705
34 17 11.0 093 15 21.0 3
DEGRAY RESERVOIR
05059 ARIcANSAS
101791
/TYPA/AMBNT/LAI(E 1 1E’ ALES 04001002
0040 FEET DEPTH CLASS 00
00665 32217 00031
DATE TIME DEPTH P iOS—TOT CHLRPHYL INCDT LT
FROM OF A REMNING
TO DAY FEET MG/I P UGh PERCENT
74/03/25 15 00 OOoO 0.019 3.0
15 00 0005 0.020
15 00 0035 0.017
74/06/05 16 00 0000 0.016 22.1
16 00 0005 0.016
16 00 0012 0.017
16 00 0020 0.038
16 00 0040 0.039
74/10/17 15 50 0000 0.028 9.7
15 50 0005 0.029
15 50 0020 0.020
iS 50 0030 0.028
15 50 0039 0.045
-------
STOAET E 1Ev L )ATE 77/Cc’/
706
is L. •rJ 093 21 22.0 3
L E( .AY Sc. OLP
O501 A Ar, 5AS
]•D1791
/ rYPA/AMBNT/LAKE
1lE AL .S
003 lEEr
04001002
0 T’i CLASS 00
74/03/25 15 15 O0 0
15 15 0005
15 15 0030
74/10/17 16 15 0000
16 iS 0005
16 15 0006
16 15 0015
16 15 0025
r - LUE K”OW 10 BE
LESS Ti-IAN INDICATEL)
0.0 24
0.022
0.026
o • 025
0.022
0.0 22
o.243
00031
INCDT LT
REMNING
PERCENT
9.0
8.8
8.4
7.8
7.2
6.0
00010
00300
0 077
00094
00400
00410
00610
00625
Pr 0S—0IS
DATE
TIME
0EPT
WATER
DO
T’ t NS
Cr..OUCTVY
P b
I ALiS
N l-13—N
Tot cJEL
NiO2 \ 03
OMTiO
FROM
ov
TEMP
SECCrII
hELL)
CAC OJ
TOTAL
N
N—TOTAL
P
TO
DAY
FEET
CENT
MG/L
INCHES
MICi 0MI-$0
SU
MG/L
MG/L
MG/L
MG/L
MG/L
74/03/25
15 15 0000
12.6
4
47
7.25
27
0.050
0.200
0.060
0.015
15 15 0005
12.’.
47
7.15
27
0.060
0.200
0.050
15 15 0030
12.3
47
7.15
26
0.070
0.200
0.040
0.004
74/10/17
16 15 0000
21.2
4.
63
7.15
37
0.050
0.500
0.030
0.00.3
16 15 0005
17.5
63
6. 1
35
0.030
0.400
0.020K
16 15 0015
16 15 0025
19.3
19.0
61
67
6.83
6.81
3t
36
0.020
0.060
0.400
0.900
0.020K
0.020K
0.004
DATE
F RON
TO
00665 32217
TIME OEPTN PHOSTOT CI-iLRPHYL
OF A
DAY FEET MG/L P UG/L
1.4
11.1
1.0
-------
APPENDIX D
TRIBUTARY DATA
-------
5 T C F ET i V L r) T5/ 11/ ó
!‘ItTL EJI P-4TC T Su-’V Y
‘A— L S
j5 )7A I
i4 12 33.0 093 06 30.0
Ai))) !vE
C3 IIWY
J/•, .Y RES
SE U ‘ 3 .8 P4! DWNSTPM FFM
2 ! 112 04
0000 FEET
NGRLY DAM
OEP H
I 3M
Ti
TI l prrl
JF
DAY F T
Yi63
Pi-’CS-’IS
PHCS—TQT
‘ 2!.’ J3
KJ .L
:_r:’ AL
P
74/06/22
14
10
0.005
0.010
74/07/20
10
25
0.3 1.0
0.200
0.010
0.005K
0.335
74/08/17
10
25
0.004
0.200
3.005K
0.320
74/09 21
10
20
0.044
0.200
0.005K
0.05cK
74/10/19
09
10
O. Olt-
0.100
0.015
0. 0 05K
0.010K
74/12/21
O
31
0.048
0.300
0.052
0.056
0.005
0.025
75/01/18
10
15
0.072
0.200
0.010
0.313
75/02/22
09
59
3.184
0.200
0.008K
0.310K
75/03/08
10
16
0.168
0.200
0.005K
0.010
75/03/22
10
00
0.175
0.300
0.018
0.025
0.110
0.020
75/04/07
10
03
0.080
0 .8flQ
0.005
0.310K
75/04/19
75/05/11
10
10
tO
06
0.145
0.085
0.300
1.600
0.030
0.035
0.005K
0.320
K VALUE IWOWN TO BE LESS THAN
INUXCATEO
-------
ET JE . L rIAr 7 /jjf J
‘i TI. EdT 4! T!r U VCY )5O7 2
EPA— LAS vE’As 34 iT 05.3 093 24 57.0
CADJ)
05 7.5 L 1 Y
T/)EG Y S
c; — w ’ 84 3.25 MT PF AM! V
L1EP LES 2111204
4 CCT DSDT}1
00630 00625 00610 DCbT1 00665
Tr I H C2G.’.i03 TT KJEL M-$3— P 1 S—D1 S Pr4OS—TOT
V)M fl • _TrTAL N T ’ T L
TO OAY ET 4G/L MG/L MG/I MG/L P MG/I P
74/06/22 11 50 0.020 0.100K 0.015 0.005 0.020
14/07/20 09 20 0.008 0.300 0.02 0.010 0.325
74/09/17 09 20 0.004 0.100K 0.005 0.029 0.350
74/09/21 09 15 0.060 0.250 0.025 0.010 0.020
74/10/19 0 35 ‘).O OR 0.200 0.020 0.010 0.320
74/12/21 09 42 0.096 0.100K 0.015 0.010 0.010
75/01/18 09 05 0.072 0.100K 0.032 0.015 0.017
75/02/22 09 0 ) 0.032 0.100K 0.008 0.310K
75/03/08 09 22 0.008 0.200 0.015 0.008K 0.010K
75/03/22 08 50 3.070 0.150 0.009 0.006 0.020
75/04/07 08 56 0.005 0.050K 0.015 0.005K 0.320
7 /04/l9 09 13 0.005 0.300 0.015 0.005 0.010
75/05/17 09 12 0.065 0.600 0.010 0.009 0.040
K VALUE KWOWN TO BE LESS THAN
INDICATL)
-------
ST’ ET ‘T FV L ‘TA T E i /L1/?&
1A1L JTC)2r1!ATtY S- VEY
EPL— L S V. E,”
31
.34 12 4( .0 93 12 15.0
LON, EK
7. PE ..Y
T/c Y s
D ;K’rL1r’1 D Pf JID T RfM D JCT
1LE ’4LES 2111204
4 0.J03 FFET flEPH
00b30
00625
-
94T
Tj 4
JH
Nr2& 3
TOT KJ I
NH3—N
PHS—OIS
PilOS—TJT
OH
OF
J— AL
N
TOTAL
JPTHJ
TQ
O Y
FEE T
/L
MG lL
MG/ I
MG/L P
MG/I P
74/06/22
13
30
3.004
0.100
0.02(.
74109121
10
)5
3.072
0.2C0
0.050
0.0 13
O.J30
74/10/19
08
55
0.008
0.100
0.015
0.005k
0.020
74 12I21
10
18
0.003
0.100K
0.015
0.005
0.010K
?5/O1I1
.)
0
-0.008
0.100K
0.C16
0.305
75/02/22
0
4
0.008
0.100K
0.016
0.016
75/03/08
10
03
0.)’J6
0.10 0K
0.018
0.005K
0.315
75/03/22
O9
50
0.009
0.100
0.030
,
0.005
0.310
75/04/07
09
25
0.005
0.100
0.020
0.005
75/04/19
10.
0
0.005
0.500
0.025
3.005K
15135/li
09
45
0.015
0.450
0.100
0.025
K VALUE KNOWN TO BE LESS THAN
INDICATED
-------
T:); T ; TAi V t i /11/28
Ti JT 20d!r ‘T’’ SU VEY
0A— LAS v ;’. -
D5 17J:
3 33 55.0 0c3 58 27.0
IT5’1 C2 ’(
1.5 P,1INT C AF
T /DEG AY o -
3NK 15) FT S SE ) ‘. !W OF SPPG VLY
I1 ’ L S 2111204
00(’0 EFT r’5P”
DATE
TIME r, TH MC2&M03
T3T
KJEL
I H3—N
T3T I
PdZS—OTS
:3 H
0M
O
D Y
MG/I
MG/L
MG/I
P4G/L P
006ó5
PHOS—TOT
MG/I P
74/06/22
09
40
O.10)K
‘.01fl
0.010
0.010
74/”7/20
08
r
). OOA
).ICOK
0. 1310
0.005
0.305
74/38/17
0
45
0, ICO
0.010
0.00 5K
0.010
74/09/21
08
00
1.008
0.100K
0.010
0.005K
J.U10K
74/10/19
07
20
0.100K
0.010
0.005
0.010
74/12/21
09
tO
0.150
0.008
0.005
0.010
75/01/15
08
30
o. oit
.
0. IC O
0.008K
0.005K
0.010K
75/02/22
18
35
0.016
0.300
0.016
0.008K
0.030
75/03/08
08
55
0.050K
0.005K
0.005K
0.010
75/03/22
08
15
0.400
0.005
0.005K
0.020
75/04/07
08
1
0.010
0.200
0.O IC
0.005K
0.010K
75104/19
75105/17
08
08
35
35
0.320
0.250
0.015
0.006
0.020
I( VALUE KNOWN TO BE LESS THAN
INDICATE ’)
-------
STO ET PET I VAt 75/11/28
4ATL EUT r 1 AYI i u vrv 35)7 ’t
E 4— LAS VEGAS 3 L3 30.0 0 3 19 41.3
3SiS’IY EE
15 A! TO1NE
T/i)E 1AY ES
‘IWY 9 0.75 ‘41 ‘ SKYLT.NF DR jr
11EP L S 21Ll2 )4
0000 FEE’ DEPTH
O0630 00625 00610 00671 006ca5
DATE lIME DE TN N02&N03 KJEL NH3-N PHOS O!S PHOS—TOT
F 0M 0 N—TOTAL N TOTAL OQTHO
TO DAY F T MS/I MG/I MG/I MG/I P MG/I P
74 1 .36/22 13 5 1.128 1.100 0.040
4109/2l 9 45 O. 08R 0.2C0 0.010 0.005 0.025
74110/19 08 37 0 ” 16 3.100 0. 005 C .005K 0.320
74/12 2l 10 01 0.056 0.100 0.010 0.005 0.020
75’/01/ 8 09 35 0.091 0.1OOK 0.005 0.009 0. )20
75 32/ ’22 09 30 0.356 0.100K 0.016 0.016 0.31k
75/03 0B 09 50 0.024 0.200 0.024 0.008K 0.020-
75/03/22 09 30 Q fl 9 0 2 5 O 0.010 0.005 0.320
75/04/07 O9 8 ô.185 OoO5OK 0.025 0.010 0.010
75/04/19 09 40 0.030 0.500 O.’035 0.005 0.020
15/05117 09 6 O.12C 0.350 0.020 0.010 3.030
1 VALUE KNOWN ‘TO BE LESS THAN
INDICATED
-------
5T T5/LLI 3
- Jo :y
A— :
.j )7 e.
3 . 19 25.0 093 17 2 .)
pdiLI r r Es(
. 15 7.5 P !\ CED -
• S
2 iD PY 5 !5 ‘ .9 Mt -1WY 84 JCT
2 1’J2”4
00U0 r T
)63(
625
3 10
; )671
00665
T1’!
nCP H
.2CN J3
T.’ icJ L
r 13—
P-iOS— [ ’!S
PtIGS—l’jT
3
‘ — AL
‘
T2ILI
-
r v
FEE’
4’;/L
MGFL
MG/I
MG/L P
MG/I P
741)6/22
10
‘5
0.156
0.100
0.015
0.005
0.315
74107/20
3
55
0.03
1.100
0.315
0.010
0.010
74/08/17
09
GD
0.04(
0.00K
0.010
0.005K
0.305K
74/09/21
08
50
0.036
0.500
0.020
0.005
0.flO
Th/10/19
)7
3
0.003
0.100K
.01C
0. OC5
75 101119
08
4
J. 64
0.!fl”K
v.008K
0.005
0. 2C
75/02/22
O
45
0.048
0. IC O
0.008
0.008
o.o lo’c
75/03 08
09
02
0.016
T .7flO
0.012
0.016
0.u 16
751)3/22
08
25
‘.046
0.250
0.005K
0.005K
0.310
•75/0 /07
75F34/19
0
08
27
45
‘.03’
0.100
0.225
0.005K
0.010
0.005K
0. )05K
0.020
0,315
75F35117
08
45
3.070
0.100
0.010
0.010
0.320
— K VALUE IOAOWN TO BE LESS THAN
Ii DICATED
-------
— - ‘ .1 1’
- - — ..FJ,LI
Q L ;:
35) fl
.)4 — _3_._J r’C.3
t b 4jl r:tt<
“ 7 7 ’;
T/oE; Y
‘‘ r D. ‘- r
21fl2)4
flCçfl cE1
V
-i :-
o M y F
D9 3 ’)
D 3S_TJT
JL
‘H3—c
Pft:S— 31S
4—T’ L
74/fl6/22
09
15
) fl5?
0.005
0.01 0
74/fl7/20
08
13
3.038
0. 10 0 K
0.025
74/38/Li
03
10
0.07 2
0.100
‘j )07
3.315
74/)9/Zt
.)8
25
).064
C.20fl
2. 110
0.020
0.U2t)
7 4/10/ 19
07
1’
O.)I ’
0. 100K
0.010
t l,QIL
74/L2/21
8
5.
:i.10 0
. )1
J.005K
0.320
75/)i/11
8
5
3.1 3t
2.1 0 0k
.02 ’
0.010K
751 )2/22
08
‘5
0.080
0.100K
0.04C
0.008K
75/13/)d
08
43
0.350
0.100
fl.Olo
0.005K
0.310
75/03/22
08
10
0.093
0.050K
0.OCSK
0.005K
0.’iZO
75/04/07
OC
37
3. 550
0.005K
3.305
75/34/19
38
3”
. }Ô5
.ZSC
‘.025
0.010
0.020
75/35/17
08
24
0.095
C.4fl0
0.015
K VALUE KNOWN TO BE LESS THAN
INDICATED
-------
V ‘L I /iiI2 i
: v ; :
•)5 )131
3 l 25.0 • 3 i : s .3
PüL r :- ‘- ZK
35 7•5 r
T/ i ; Y
2’.D\Y ? G ‘.3 ‘ ¶ • WY 84 JC’
2Ili2’ 4
-r 0)03 J.PH
)363
‘3625
t 671
336o5
) -
1 V Tri NC2 J3
JEL
\
Pr LS—CIS
?HCS—TJT
j—’ AL
TTLL
‘10/L
‘QTH
r
- T
M /L
MG/L
‘ 10/1 P
lO/L P
74/36122
l
15
0.024
0.100K
0.020
0.005K
0.020
7./09/21
09
00
0.032
0.300
0.020
0.005K
‘).02(’
74/ 10fl9
‘7
45
0.0 ’S
0.101K
0.020
‘ . 105
74/12/21
09
5
0.016
0.2C0
0.015
0.005
0.020
75/01/ I s
05
50
0.2(
0. .16
.ii’J5
3. -J4( )
75/02/2?
08
sc
3.024
). ?3
0.316
). 16
).JLc
75/03/0
09
IC
0.012
0.300
0.016
0.00 K
0.)2U
75/03/22
08
30
0.022
•).100
0.005K
0.005K
0.3 2 L
75/)4/07
08
34
0. IIY’
0.005K
0.0 05K
0.020
75 10s,’19
09
50
0.010
0.1 0
0.010
0.005
0.020
75/05/17
‘ 9
).055
0.3 0
0.010
0.005
0.020
K VALUE icN0W ’1 TO BE LESS THA I
IL IDICATED
-------
APPENDIX E
PARAMETRIC RANKINGS OF LAKES
SAMPLED BY LIES IN 1974
STATE OF ARKANSAS
-------
1’,ATA TI E uSED IN PAIN 3
MFr 11A, .J ‘ET i N lc M flTA 1
C0LTh L F jA’E T0T L 1NO’ t C-LU- lIN Du i1S 0 Ti.s
G O1 EA E- L cE •;.0d I j .3 fl 3.’?l 1’. ’ 0h’ 0.00 ’
flSU BLAC I ’ L ’r. 4 .j 5 1 .77 ’ 1d. )0fl
0S03 BLUE .A0jiJTAIN LAKE 0. 16u . 4.000 14.h OO 0.010
0504 1L’LL S—OALS LAKE O.fl1 0.3 i0 343•9 15. O Ofl 0.004
0505 LAKE CAT.’EPI’iE 0.’ 2 0.1 fl ‘51.6f 7 14.042 11.800 0.006
0 0 LAFcE CptICOr 0.162 0.450 4b.000 13.?2e 14.800 0.089
ij5ol DEG AY ESE VOIR 0.130 419.050 12.300 15.000 0.004
o oq LAKE EQLINr, 0.’ b4 0.120 454.667 13.3 9 14.600 0.020
Q5Q J (jPAND LAKE 0.101 0.090 479.b67 h2, 3b7 8.400 0.021
0510 LAIcE iAM1LT0r’I 0.024 0.130 428.111 10.889 14.400 0.006
0511 MILLW000 L ic 0.040 0.120 466.77w 14.967 9.800 0.008
0512 NINROL) LAKE 0.039 0.160 469.000 15.833 8.800 0.006
0513 NOPFOLK LAKE 0.01” 0.320 35t.321 3 .44j 15.000 0.005
0514 LAKE OIJACHTTA 0.015 0.155 38 .144 4 344 15.000 0.006
0515 TA8LE ROCK LAKE 0.022 Q•350 410.778 9.103 15.000 0.007
0516 GWEER’S LAKE 0.012 0.140 370.875 3.762 15.000 0.004
-------
PET CENT OF LAKEc wJTIi H1r,I1E VALUES CNI’MR OF LAKES WITh 1r, EQ VALUES)
MFOIAr ‘ IE•D1AN 500— MEAN 1— MEOIA 1
TOTAL P INOP( j Mf j SEL Cr1LO A MIN DO DISS OPT O P
LAI(E
CODE
LAKE NAME
0501
ciEAVE? L E
3 C )
27 C 4)
7 C 10)
87 C 13)
40 C )
63 C
)
0502
LAC
------- |