U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
•&GPO 697.032
-------
REPORT
ON
ENID LAKE
YALOBUSHA COMY
MISSISSIPPI
EPA REGION IV
WORKING PAPER No, 360
WITH THE COOPERATION OF THE
MISSISSIPPI AIR AND WATER POLLUTION
CONTROL COWISSION
AND THE
MISSISSIPPI NATIONAL GUARD
JUNE, 1975
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CONTENTS
Page
Foreword ii
List of Mississippi Study Lekes iv
Lake and Drainage Area Map . v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 9
V. Literature Reviewed 14
VI. Appendices 15
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n
FOREWORD
The National Eutrophication Survey v.'as initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat, of accelerated eutrophication to fresh water lakes and
reservoirs.
OBJECTIVES.
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC. APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§3-;)3(e)], water
quality criteria/standards review [53Q3(c)L clean lakes [f<314(a,b)],
and water quality monitoring [5106 and S305(b)'J activities mandated
by the f-'ederal 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.
ACKNOWLEDGMENT
The staff of the- National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Mississippi Air and Water
Pollution Control Commission for professional involvement and
to the Mississippi National Guard for conducting the tributary
sampling phase of the Survey.
Glen Wood, Jr., Director, and John Smith, Deputy Director
of the Air and Water Pollution Control Commission; and John
Harper, Don Scott, John Sigrnan, and Dwight Wylie of the Water
Division provided invaluable lake documentation and counsel during
the Survey, reviewed the preliminary reports, and provided cri-
tiques most useful in the preparation of this Working Paper series,
Major General E. A. Beby Turnage, the Adjutant General of
'Mississippi, and Project Officer Major Thomas D. Nichols, who
directed the volunteer efforts of the Mississippi National
Guardsmen, are also gratefully acknowledged for their assistance
to the Survey.
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iv
LAKE NAME
Arkabutla
Enid
Grenada
Pickwick
Ross Barnett
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MISSISSIPPI
COUNTY
DeSoto, Tate
Yalobusha
Calhoun, Grenada,
Yalobusha
Tishominga
Jackson, Madison,
Rankin
Sardis
Lafayette, Panola
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ENID LAKE
® Tributary Sampling Site
X Lake Sampling Site
^ Sewage Treatment Facility
^D Drainage Area Boundary
HI Land Subject To Inundation
srvs—
89-55'
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ENID LAKE
STORE! NO. 2802
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Enid Lake is eutrophic. It ranked
fourth in overall trophic quality when the five Mississippi lakes
sampled in 1973 were compared using a combination of six param-
eters*. Three of the lakes had less median total phosphorus, one
had less and one had the same median dissolved phosphorus, two had
less median inorganic nitrogen, three had less mean chlorophyll a^
and two had greater mean Secchi disc transparency. Depression of
dissolved oxygen with depth occurred at all three sampling stations
in June and at stations 2 and 3 in August.
Survey limnologists reported a muddy, brown-green appearance
in June of the sampling year.
B. Rate-Limiting Nutrient:
The algal assay results indicate that Enid Lake was phosphorus
limited at the time the sample was collected (06/12/73). The lake
data indicate phosphorus limitation at the other sampling times as
well.
C. Nutrient Controllability:
1. Point sources—The estimated phosphorus contribution of the
known point sources amounted to only 4.6% of the total reaching
* See Appendix A.
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2
Enid Lake during the sampling year. The point sources included
the communities of Water Valley (1.8%), Oxford South Plant-East
and West Lagoons (2.7%), and Oxford Little Lagoon (0.1%). However,
the phosphorus export rates of two of the tributaries were quite
high, and it is possible that additional point sources in the
Water Valley and Oxford areas contributed to the loadings (see
below).
The present phosphorus loading of 3.98 g/m2/year is over five
times that proposed by Vollenweider (Vollenweider and Dillon, 1974)
as a eutrophic loading (see page 13). However, Enid Lake is phos-
phorus limited, and all phosphorus inputs to the lake should be
minimized to the greatest practicable extent to slow the aging of
this water body.
2. Non-point sources—It is calculated that over 95% of the
total phosphorus input to Enid Lake was contributed by non-point
sources during the sampling year. After point-source loads were
subtracted, the Otoucalofa Creek Canal contributed 52.2%, and the
Yocona River Canal contributed 38.3% of the total phosphorus load.
Other contributing gaged tributaries were Bynum Creek (1.7%) and
Long Branch (1.5%). Ungaged tributaries were estimated to have
contributed 1.2% of the overall phosphorus load.
The phosphorus export rate of the Otoucalofa Creek Canal was
a very high 360 kg/km2 during the sampling year (see page 12).
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3
This high rate may be the result of underestimation of the Water
Valley load since more than 25% of the waste load to the plant was
contributed by the poultry-processing industry (Murphy, 1973).
Also, sampling site C-l may have been too close to the Water Valley
treatment plant discharge (ca. 0.8 km) to permit adequate mixing
of the effluent in the stream at the sampling point which could
result in unusually high phosphorus concentrations in the samples
(note that the mean phosphorus concentration in this stream was
from about four to over eight times higher than the mean concen-
trations in the other sampled tributaries).
The phosphorus export rate of the Yocona River Canal also was
somewhat high (89 kg/km2/yr). This may have resulted from under-
estimation of the phosphorus contributions of the Oxford waste-
water treatment ponds or, possibly, unsampled point sources (e.g.,
Toccopola and Taylor).
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphemetry :
1. Surface area: 52.49 kilometers2..
2. Mean depth: 15.5 meters.
3. Maximum depth: 22.5 meters.
4. Volume: 813.595 x 10s m3.
5. Mean hydraulic retention time: 1.12 years (based on outflow),
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Yocona River Canal 898.7 13.7
Long Branch 71.7 1.0
Otoucalofa Creek Canal 303.0 4.9
Bynum Creek 71.5 1.1
Minor tributaries &
immediate drainage - 53.0 1.3
Totals 1,397.9 22.0
2. Outlet -
Yocona River Canal 1,450.4** 23.0
C. Precipitation***:
1. Year of sampling: 205.0 centimeters.
2. Mean annual: 135.7 centimeters.
t Table of metric conversions—Appendix B.
tt Smith, 1973.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
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5
III. LAKE WATER QUALITY SUMMARY
Enid Lake was sampled three times during the open-water season
of 1973 by means of a pontoon-equipped Huey helicopter. Each time,
samples for physical and chemical parameters were collected from
three stations on the lake and from a number of depths at each
station (see map, page v). 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, a single 18.9-liter depth-integrated sample was composited
for algal assays. Also each time, a depth-integrated sample was collected
from each of the stations for chlorophyll a^ analysis. The maximum
depths sampled were 6.4 meters at station 1, 12.8 meters at station
2, and 14.0 meters at station 3.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
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PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02»N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 6/12/73)
3 SITES
CHEMICAL CHARACTERISTICS FOR ENID LAKE
STORET CODE 2802
2ND SAMPLING ( 8/27/73)
3 SITES
3RD SAMPLING (ll/ 1/73)
3 SITES
RANGE
17.5
1.0
37.
5.7
13.
0.060
0.005
0.090
0.080
0.300
0.170
0.420
2.2
0.7
- 30.5
7.8
48.
7.8
18.
- 0.149
- 0.078
- 0.310
- 0.230
- 1.200
- 0.440
- 1.300
4.2
0.8
MEAN
24.6
4.5
40.
6.7
15.
0.074
0.013
0.174
0.131
0.479
0.306
0.653
3.4
0.7
MEDIAN
24.1
4.2
39.
6.4
15.
0.066
0.008
0.160
0.130
0.300
0.305
0.555
3.8
0.8
RANGE
19.6
0.1
53.
6.1
14.
0.015
0.004
0.040
0.040
0.600
0.080
0.640
5.9
1.2
- 30.4
8.8
99.
6.9
31.
- 0.117
- 0.022
- 0.110
- 0.790
- 1.500
- 0.900
- 1.610
6.8
1.4
MEAN
27.4
5.0
67.
6.5
19.
0.041
0.008
0.066
0.217
0.918
0.284
0.985
6.3
1.3
MEDIAN
28.9
7.0
58.
6.6
17.
0.025
0.005
0.060
0.060
0.800
0.120
0.840
6.1
1.4
RANGE
15.5
7.2
43.
7.6
12.
0.050
0.010
0.110
0.080
0.300
0.200
0.430
5.8
0.5
- 18.1
9.2
46.
7.7
16.
- 0.118
- 0.017
- 0.170
- 0.100
- 0.700
- 0.270
- 0.810
- 17.3
0.8
MEAN
17.2
8.1
45.
7.6
15.
0.073
0.013
0.140
0.092
0.470
0.232
0.610
10.1
0.6
MEDIAN
17.6
8.2
45.
7.6
15.
0.055
0.014
0.130
0.090
0.450
0.220
0.600
7.1
0.5
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
06/12/73
08/27/73
11/01/73
2. Chlorophyll a_ -
Sampling
Date
06/12/73
OB/27/73
11/01/73
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Melosira sp.
Aphanizomenon sp.
Cyclotella s£.
Flagellates
Coelastrum sp.
Other genera
Total
Lyngbya sp.
Aphanizomenon sp.
Cryptomonas sp.
Melosira sp.
Synedra sp.
Other genera
Total
Melosira sp.
Pennate diatoms
Cy do tell a sp.
Dactylococcopsis sp.
Aphanizomenon sp.
Other genera
Total
Algal Units
per ml
194
65
39
39
26
102
465
Stati on
Number
01
02
03
01
02
03
01
02
03
2,308
1,459
307
179
102
51
103
2,201
Chlorophyll
(yg/D
2.2
3.8
4.2
5.9
6.1
6.8
17.3
7.1
5.8
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8
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N Maximum yield
Spike (mg/1) Cone, (mg/1) Cone, (mg/1) (mg/1-dry wt.)
Control 0.010 0.724 0.1
0.050 P 0.060 0.724 2.1
0.050 P + 1.0 N 0.060 1.724 15.4
1.0 N 0.010 1.724 0.1
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum, indicates that the potential primary productivity
of Enid Lake was low at the time the sample was collected
(06/12/73). The results also indicate the lake was phosphorus
limited at that time. Note that the addition of orthophosphorus
alone produced a significant increase in yield over that of
the control, whereas addition of nitrogen alone produced no
such increase.
The lake data also indicate limitation by phosphorus.
The mean inorganic nitrogen/orthophosphorus ratios were 18/1
or greater at all sampling stations and times, and phosphorus
limitation would be expected.
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IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Mississippi National
Guard collected monthly a near-surface grab sample from each of the
tributary sites indicated on the map (page v) in August, September,
November, and January (floods prevented sampling during much of the
Survey year). Sampling was begun in August, 1973, and was completed
in January, 1974.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Mississippi District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads shown are
those measured minus point-source loads, if any.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("II" of U.S.G.S.) were estimated using the means of the
nutrient loads, in kg/km2/year, at stations B-l and D-l and multiplying
the means by the II area in km2.
The operators of the three Oxford wastewater treatment plants pro-
vided monthly effluent samples but only limited flow data, and the
operator of the Water Valley wastewater treatment plant provided monthly
* See Working Paper No. 175.
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10
samples but no flow data. Therefore, nutrient loads from these sources
were estimated at 1.134 kg P and 3.401 kg N/capita/year.
A. Waste Sources:
,t
1. Known municipal -
Name
Pop.
Served
Treatment
Oxford -
South Plant
Little Lagoon
Water Valley**
200 lagoon
3,300 lagoon
Mean Flow
(m'/d)
1,892.5*
75.7*
1,608.6
Receiving
Water
Burney Branch
Goose Creek
Town Creek
2. Known industrial - None with separate treatment facilities.
t Murphy, 1973.
* Estimated at 0.3785 m3/capita/day.
** Over 25% of total waste load from industry (poultry processing);
Murphy, op. cit.
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11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Yocona River Canal 79,935 38.3
Long Branch 3,075 1.5
Otoucalofa Creek Canal 109,090 52.2
Bynum Creek 3,635 1.7
b. Minor tributaries & imediate
drainage (non-point load) - 2,490 1.2
c. Known municipal STP's -
Oxford -
South Plant 5,670 2.7
Little Lagoon 225 0.1
Water Valley 3,740 1.8
d. Septic tanks* - 15 <0.1
e. Known industrial - None
f. Direct precipitation** - 920 0.4
Total 208,795 100.0
2. Outputs -
Lake outlet - Yocona R. Canal 45,100
3. Net annual P accumulation - 163,695 kg.
* Estimate based on 22 lakeside dwellings and 11 parks; see Working Paper
No. 175.
** See Working Paper No. 175.
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12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Yocona River Canal 475,760 37.8
Long Branch 55,795 4.4
Otoucalofa Creek Canal 557,220 44.3
Bynum Creek 45,400 3.6
b. Minor tributaries & immediate
drainage (non-point load) - 37,445 3.0
c. Known municipal STP's -
Oxford -
South Plant 17,005 1.4
Little Lagoon 680 <0.1
Water Valley 11,225 0.9
d. Septic tank* - 625 <0.1
e. Known industrial - None
f. Direct precipitation** - 56.670 4.5
Total 1,257,825 100.0
2. Outputs -
Lake outlet - Yocona R. Canal 589,125
3. Net annual N accumulation - 668,700 kg.
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Yocona River Canal 89 529
Long Branch 43 778
Otoucalofa Creek Canal 360 1,839
Bynum Creek 51 635
* Estimate based on 22 lakeside dwellings and 11 parks; see Working Paper
No. 175.
** See Working Paper No. 175.
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13
E. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/mVyr 3.98 3.12 24.0 12.7
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Enid Lake:
"Dangerous" (eutrophic loading) 0.72
"Permissible" (oligotrophic loading) 0.36
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14
LITERATURE REVIEWED
Murphy, W. Carroll, 1973. Treatment plant questionnaires. MS
Air & Water Poll. Contr. Comm., Jackson.
Smith, John, 1973. Personal communication (lake morphometry). MS
Air & Water Poll. Contr. Comm., Jackson.
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.
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15
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LA!lD i-A:<£ 251
5 2301 ARKABUTLA LAKE . 50
-------
LA.-.L" DATA TO liE USe.0 IN BANKINGS
LAKc
CODE LAKE '•:;>••••£
2 5 C i A* i< A a u T L A L A K £
2302 ENID LAKE
2804 ROSS BASMZTT ,:^:s£r-\
0
0
y
0
0
OlAI-i
CRO N
.440
.240
,140
.190
.305
" r. /i
~' V ~J
Mc.
4b5.
465.
462.
447.
476.
SEC
ill
000
917
750
773
C
6
6
CJ
6
6
M?lA"i
"(LOi-JA
5f A
V \_'
o573
.902
.425
-022
V
15
14
14
14
14
\t-
IN C'J
.000
.900
,600
.&QO
.900
DI5S
C
0
^
J
0
0
;.;-•; . T
0:-rr
.023
.009
.003
.009
.010
-------
PERCENT OF LAKES WITH HIGHER VALUES
4)
"3 ^
1)
500-
MEAN 2EC
0 (
5C (
75 i.
100 (
25 (
0)
2)
3)
^}
1)
rfEAM
CnLORA
50 (
25 (
0 (
75 (
100 <
2)
1)
C>
3;
4)
15-
MIN 00
0 {
33 (
100 (
75 (
38 (
0)
1)
A!
3)
1)
MEDIi
DISS CRT
0 C
63 (
100 (
63 (
25 (
• \
HO
0)
2)
4)
2)
1)
-------
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 = 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 FOR MISSISSIPPI
02/18/76
LAKE CODE 2802
ENID LAKE
TOTAL DRAINAGE AREA OF LAKE(SO KM) 1450.4
SUB-DRAINAGE
TRIBUTARY AREA(SO KM)
JAN
FEB
MAR
APR
MAY
NORMALIZED FLOWS(CMS)
JUN JUL AUG
SEP
OCT
NOV
DEC
MEAN
2802A1
2802A2
280281
280 2C1
2802D1
2802ZZ
1450.4
898.7
71.7
303.0
71.5
82.9
36.87
22.09
1.84
7.48
1.73
2.04
35.71
28.60
2.41
9.74
2.27
2.66
39.33
30.02
2.52
10.19
2.66
2.80
28.18
25.77
2.15
8.72
2.04
2.38
18.86
12.01
0.93
4.28
0.93
1.13
16.91
6.65
0.34
2.58
0.48
0.62
17.53
4.96
0.20
2.10
0.37
0.48
16.65
2.89
0.05
1.47
0.20
0.28
16.28
5.44
0.24
2.24
0.40
0.51
14.47
2.63
0.04
1.36
0.18
0.25
13.71
9.46
0.76
3.74
0.76
0.91
22.77
14.58
1.13
5.04
1.16
1.36
23.05
13.66
1.04
4.88
1.09
1.28
TOTAL DRAINAGE AREA OF LAKE « 1450.4
SUM OF SUB-DRAINAGE AREAS «= 1427.9
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY
2802A1
2802A2
2802B1
2802C1
2802D1
2802ZZ
MONTH YEAR
MEAN FLOW DAY
8
9
11
1
8
9
11
1
8
9
11
1
8
9
11
1
8
9
11
1
8
9
11
1
73
73
73
74
73
73
73
74
73
73
73
74
73
73
73
74
73
73
73
74
73
73
73
74
70.37
53.69
26.08
55.08
3.54
2.27
32.56
76.46
0.09
0.03
2.61
6.14
1.64
1.22
11.04
26.19
0.22
0.15
2.52
6.09
0.34
0.23
3.00
7.05
22
9
10
20
22
9
10
20
22
9
10
20
23
9
10
20
22
9
10
20
22
9
10
20
FLOW DAY
69.38
65.13
15.57
82.12
1.95
3.45
11.89
27.18
0.02
0.08
0.91
2.21
1.10
1.61
4.11
9.34
0.13
0.24
0.88
2.18
0.20
0.34
1.08
2.52
SUMMARY
TOTAL FLOW IN
TOTAL FLOW OUT
FLOW DAY
FLOW
265.24
277.25
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORE? RETRIEVAL DATE 76/02/18
280301
34 08 52.0 089 47 22.0 3
ENIO LAKE
28161 MISSISSIPPI
DATE
FROM
TO
73/06/12
73/08/27
73/11/01
DATE
FROM
TO
73/06/12
73/08/27
73/11/01
TIME DEPTH
OF
DAY FEET
15 00 0000
15 00 0006
15 00 0015
15 00 0021
19 00 0000
19 00 0005
19 00 0015
15 50 0000
IS 50 0001
15 50 0004
TIME DEPTH
OF
DAY FEET
15 00 0000
15 00 0006
IS 00 0015
15 00 0021
19 00 0000
19 00 0005
19 00 0015
15 50 0000
15 50 0001
15 50 0004
00010
WATER
TEMP
CENT
28.3
27.8
24.0
21.8
30.0
29.2
27.4
15.5
15.5
15.5
00665
PHOS-TOT
MG/L P
0.149
0.065
0.066
0.077
0.033
0.019
0.047
0.113
0.118
0.116
00300
DO
MG/L
6.9
4.0
1.0
8.8
7.0
7.0
9.2
9.2
32217
CHLRPHYL
A
UG/L
2.2
5.9
17.3
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
28 39
38
42
48
48 59
56
59
16 43
43
43
11EPALES 2111202
0025 FEET DEPTH CLASS 00
00400 00410 00610 00625
PH
SU
6.90J
6.80J
6.00J
5.70J
6.80
6.90
6.50
7.60
7.60
7.60
T ALK
CAC03
MG/L
15
13
13
16
15
15
20
13
13
12
NH3-N
TOTAL
MG/L
0.130
0.100
0.160
0.230
0.070
0.040
0.150
0.090
0.090
0.100
TOT KJEL
N
MG/L
0.800
0.300
0.300
0.400
0.900
0.600
0.600
0.700
0.600
0.600
00630
N02&N03
N-TOTAL
MG/L
0
0
0
0
0
0
0
0
0
0
.100
.120
.160
.160
.060
.040
.090
.110
.120
.120
00671
PHOS-DIS
ORTHO
MG/L P
0.078
0.007
0.005
0.006
0.005
0.005
0.009
0.017
0.012
0.014
-
J VaLUF KNOWN TO BE IN FRPOR
-------
STORET RETRIEVAL DATE 76/02/ie
380202
34 09 00.0 089 50 55.0 3
ENID LAKE
28161 MISSISSIPPI
11EPALES 2111202
0045 FEET DEPTH CLASS 00
DATE
FROM
TO
73/06/12
73/08/27
73/11/01
DATE
FROM
TO
73/06/12
73/08/27
73/11/01
TIME DEPTH
OF
DAY FEET
15 40 0000
15 40 0006
15 40 0015
15 40 0030
15 40 0041
19 15 0000
19 15 0015
19 15 0030
19 15 0042
15 40 0000
15 40 0005
15 40 0013
TIME DEPTH
OF
DAY FEET
15 40 0000
15 40 0006
15 40 0015
15 40 0030
15 40 0041
19 15 0000
19 15 0015
19 15 0030
19 15 0042
15 40 0000
15 40 0005
15 40 0013
00010
WATER
TEMP
CENT
30.3
27.0
23.8
20.3
19.1
29.8
28.9
23.8
19.6
17.6
17.6
17.6
00665
PHOS-TOT
MG/L P
0.066
0.060
0.064
0.071
0.076
0.015
0.025
0.078
0.117
0.052
0.052
0.062
00300
00
MG/L
7.3
4.7
3.0
2.7
7.2
4.4
0.1
0.2
8.2
8.2
32217
CHLRPHYL
A
UG/L
3.8
6.1
7.1
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
30 37
38
39
41
44
55 58
53
99
90
32 45
45
44
00400
PH
SU
7.70J
7.30J
6.30J
6.20J
6.10J
6.60
6.20
6.10
6.30
7.60
7.60
7.60
00410
T ALK
CAC03
MG/L
17
15
14
14
14
16
14
24
31
16
14
14
00610
NH3-N
TOTAL
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
.140
.100
.120
.140
.100
.040
.060
.550
.790
.080
.090
.090
00625
TOT KJEL
N
MG/L
1.100
0.400
0.300
0.300
0.300
0.800
0.600
1*400
1.500
0.500
0.400
0.300
00630
N021N03
N- TOTAL
MG/L
0.100
0.120
0.170
0.280
0.280
0.040
0.040
0.100
0.110
0.130
0.130
0.130
00671
PHOS-OIS
ORTHO
MG/L P
0.008
0.010
0.008
0.010
0.012
0.004
0.005
0.015
0.022
0.010
0.015
0.015
J VALUE KNOWN TO Ht IN
-------
STORE! RETRIEVAL DATE 76/02/18
280203
34 08 58.0 089 54 08.0
ENID LAKE
28161 MISSISSIPPI
DATE
FROM
TO
73/06/12
73/08/27
73/11/01
DATE
FROM
TO
73/06/12
73/08/27
73/11/01
TIME DEPTH
OF
DAY FEET
16 15 0000
16 15 0006
16 15 0015
16 IS 0030
16 15 0046
19 40 0000
19 40 0010
19 40 0020
19 40 0030
15 18 0000
15 18 0005
15 18 0015
15 18 0023
TIME DEPTH
OF
DAY FEET
16 15 0000
16 15 0006
16 15 0015
16 15 0030
16 15 0046
19 40 0000
19 40 0010
19 40 0020
19 40 0030
15 18 0000
15 18 0005
15 18 0015
15 18 0023
00010
WATER
TEMP
CENT
30.5
29.5
24.3
20. 5
17.5
30.4
30.4
28.6
23.2
18.1
18.1
18.1
18.0
00665
PHOS-TOT
MG/L P
0.065
0.061
0.066
0.069
0.080
0.024
0.022
0.024
0.049
0.056
0.054
O.OSO
0.053
00300
DO
MG/L
7.8
5.4
4.2
2.6
7.8
7.6
4.4
0.4
7.4
7.4
7.2
32217
CHLRPHYL
A
UG/L
4.2
6.8
5.8
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
30 37
38
39
40
43
56 58
56
53
95
18 46
46
46
45
11EPALES 2111202
0050 FEET DEPTH CLASS 00
00400 00410 00610 00625
PH
SU
7
7
6
6
6
6
6
6
6
7
7
7
7
.80J
.80J
.50J
.30J
.20J
.70
.80
.60
.20
.70
.60
.60
.60
T ALK
CAC03
MG/L
18
17
16
15
17
17
18
17
27
16
15
16
16
NH3-N
TOTAL
MG/L
0.150
0.080
0.150
0.110
0.130
0.050
0.060
0.060
0.520
0.100
0.100
0.090
0.090
TOT KJEL
N
MG/L
1.200
0.400
0.300
0.300
0.300
0.900
0.700
0.700
1.400
0.500
0.400
0.300
0.400
00630
N02&N03
N-TOTAL
MG/L
0.100
0.090
0.200
0.250
0.310
0.050
0.060
0.050
0.090
0.160
0.170
0.170
0.160
00671
PHOS-OIS
ORTHO
MG/L P
0.006
0.005
0.006
0.009
0.010
0.005
0.006
0.004
0.007
0.014
0.013
0.014
0.011
J V-'LUT KNOWN TO 3F I
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 76/02/23
00630
DATE TIME DEPTH N02&N03
FROM OF N-TOTAL
TO DAY FEET MG/L
73/08/22 14 10
73/09/09 13 40
73/11/10 15 43
74/01/20 14 00
0.016
0.370
0.220
0.200
00625
TOT KJEL
N
MG/L
1.050
0.400
0.850
0.400
00610
NH3-N
TOTAL
MG/L
0.320
0.126
0.132
0.105
2802A1
34 08 50.0 089 55 15.0 4
YOCONA CANAL
28033 15 OAKLAND
0/ENID LAKE
HtfY 51 BRDG BELO ENID DAM
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00671 00665
PHOS-OIS PHOS-TOT
ORTHO
MG/L P MG/L P
0.010
0.010
0.018
0.055
0.045
0.035
0.115
-------
STORE! RETRIEVAL DATE 76/02/33
00630
DATE TIME DEPTH N02&N03
FROM OF N-TOTAL
TO DAY FEET MG/L
73/08/23 12 20
73/09/09 13 00
73/11/10 14 55
74/01/20 13 00
0.120
0.390
0.120
0.132
00625
TOT KJEL
N
MG/L
0.700
0.690
1.900
0.300
00610
NH3-N
TOTAL
MG/L
0.025
0.079
0.380
0.075
00671
PHOS-DIS
ORTHO
MG/L P
0.018
0.050
0.040
0.025
2802A2
34 12 15.0 089 40 45.0 4
YOCONA RIVER CANAL
28 15 WATER VALLY
I/ENID LAKE
HWY 315 BRDG 4 Ml NW OF WATER VALLY
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00665
PHOS-TOT
MG/L P
0.175
0.190
0.315
0.090
-------
STORE! RETRIEVAL DATE 76/02/23
380281
34 05 57.0 089 48 05.0 4
LONG BRANCH
28 15 OAKLAND
T/ENIO LAKE
OAKLAND RD BROG 1.5 HI S Of FORDS WELL
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/08/22
73/09/09
73/11/10
74/01/20
TIME DEPTH
OF
DAY FEET
15 38
14 10
16 00
14 45
00630
N02&N03
N-TOTAL
MG/L
0.030
0.082
0.060
0.112
00625
TOT KJEL
N
MG/L
1.230
1.400
2.600
0.400
00610
NH3-N
TOTAL
MG/L
0.295
0.042
0.330
0.030
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.012
0.021
0.020
00665
PHOS-TOT
MG/L P
0.030
0.050
0.123
0.140
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/02/23
00630
DATE TIME DEPTH N02&N03
FROM OF N-TOTAL
TO DAY FEET MG/L
73/08/23 10 00
73/09/09 14 40
73/11/10 14 25
74/01/20 15 30
0.176
0.320
0.280
0.152
00625
TOT KJEL
N
MG/L
4.600
3.400
4.400
1.000
00610
NH3-N
TOTAL
MG/L
0.660
1.370
1.000
0.125
2802C1
34 08 35.0 089 39 00.0 4
OTOUCALOFA CREEK CANAL
28 15 MATER VALLY
T/ENID LAKE
BANK .5 MI SW OF WATER VALLEY BELO STP
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00671 00665
PHOS-DIS PHOS-TOT
ORTHO
MG/L P MG/L P
0.294
0.320
0.425
0.055
0.850
0.720
1.050
0.250
-------
STORE! RETRIEVAL DATE 76/02/23
00630
DATE TIME DEPTH N02&N03
FROM OF N-TOTAL
TO DAY FEET MG/L
73/08/22 18 00
73/09/09 13 10
73/11/10 15 08
74/01/20 13 15
0.039
0.044
0.072
0.112
00625
TOT KJEL
N
MG/L
1.050
0.425
2.600
0.600
00610
NH3-N
TOTAL
MG/L
0.399
0.034
0.320
0.060
0.017
0.023
0.034
0.020
280201
34 13 30.0 089 44 25.0 4
BYNUM CREEK
28 15 MATER VALLY
T/ENID LAKE
ST HMY 315 BRDG 1 MI N OF BYNUM SCHOOL
11EPALES 2111204
0000 FEET DEPTH CLASS 00
00671
PHOS-DIS
ORTHO
MG/L P MG/L
00665
PHOS-TOT
0.115
0.070
0.125
0.095
-------
STORE! RETRIEVAL DATE 76/02/18
2802CA P02802CA
34 08 30.0 089 39 00.0 4
WATER VALLEY
28033 TALOBUSHA CO MAP
T/ENID CREEK
OTOUCALOFA CR CANAL
11EPALES 2141204
0000 FEET DEPTH CLASS 00
P003300*
DATE
FROM
TO
73/05/15
73/06/15
73/07/20
73/08/15
73/09/17
73/10/15
73/11/15
73/12/24
74/01/14
74/02/21
74/03/19
74/04/16
74/05/28
TIME DEPTH
OF
DAY FEET
13 20
14 15
10 00
10 00
10 00
09 00
08 30
08 30
08 30
22 00
14 00
13 15
08 25
00630
N02&N03
N-TOTAL
MG/L
0.035
0.165
0.070
0.189
0.067
0.056
0.040
0.330
0.160
0.120
0.320
0.080
0.280
00625
TOT KJEL
N
MG/L
36.000
37.800
36.900
15.000
28.000
31.000
31.000
31.000
17.000
26.000
37.000
23.000
31.000
00610
NH3-N
TOTAL
MG/L
17.600
10.200
3.300
1.200
4.700
4.600
3.990
8.100
4.300
8.600
17.300
18.000
9.000
00671
PHOS-DIS
ORTHO
MG/L P
4.200
0.450
1.340
0.580
2.300
2.800
2.310
3.300
2.200
3.300
4.700
5.000
2.800
00665
PHOS-TOT
MG/L P
6.800
6.500
6.700
6.300
6.700
6.300
5.900
5.700
4.200
6.000
7.300
6.300
4.800
50051 50053
FLOW CONDUIT
RATE FLOW-MGD
INST MGD MONTHLY
-------
STORE! RETRIEVAL DATE 76/02/18
280221 P0280221
34 20 30.0 089 31 00.0 4
OXFORD
28161 7.5 OXFORD
T/ENID LAKE
BURNEY BRANCH
11EPALES 2141204
0000 FEET DEPTH CLASS 00
P005000
DATE
FROM
TO
73/05/10
73/06/11
73/07/10
73/08/13
73/09/12
73/10/12
73/11/12
73/12/06
74/01/17
74/02/08
74/03/08
74/04/17
74/05/08
TIME DEPTH
OF
DAY FEET
08 00
08 30
08 00
08 00
08 30
09 30
09 15
09 15
13 15
08 15
09 15
09 15
08 45
00630
N02&N03
N-TOTAL
MG/L
0.130
0.017
0.030
0.070
0.048
0.030
0.180
0.400
0.160
0.200
0.040
0.120
0.160
00625
TOT KJEL
N
MG/L
11.500
6.100
5.600
2.100
7.300
10.000
12.500
9.000
9.600
11.000
11.000
26.000
9.000
00610
NH3-N
TOTAL
MG/L
1.900
0.056
0.069
0.210
1.340
3.000
3.700
3.150
0.088
4.900
5.000
4.600
2.200
00671
PHOS-DIS
ORTHO
MG/L P
4.600
4.850
5.300
3.400
6.400
6.600
6.300
5.300
4.300
4.300
4.800
6.300
4.800
00665
PHOS-TOT
MG/L P
5.600
5.550
5.800
6.900
7.200
7.600
7.600
6.100
5.400
5.500
6.000
9.500
6.000
50051
FLOW
RATE
INST MOD
0.250
0.250
0.250
50053
CONDUIT
FLOW-MGD
MONTHLY
0.250
-------
STORE! RETRIEVAL DATE 76/02/18
280232 P0280222
34 20 30.0 089 31 00.0 4
OXFORD
28 7.5 OXFORD
T/ENID LAKE
BURNEY BRANCH
11EPALES 2141204
0000 FEET DEPTH CLASS 00
P005000
DATE
FROM
TO
73/05/10
73/06/11
73/07/10
73/08/13
73/09/12
73/10/12
73/11/12
73/12/06
74/01/17
7^/02/08
74/03/08
74/04/17
74/05/08
TIME DEPTH
OF
DAY FEET
08 15
08 15
08 15
08 15
08 15
09 15
10 00
10 00
13 30
08 00
09 00
09 30
00630
N02&N03
N-TOTAL
MG/L
0.085
0.020
0.020
0.040
0.048
0.150
1.260
0.310
0.240
0.080
0.120
0.040
0.080
00625
TOT KJEL
N
MG/L
10.000
8.600
8.300
9.000
10.000
4.700
8.100
3.800
5.500
11.000
13.000
19.000
11.000
00610
NH3-N
TOTAL
MG/L
2.400
0.510
0.890
0.810
1.240
1.760
0.380
0.077
3.440
5.300
3.700
7.100
2.400
00671
PHOS-DIS
ORTHO
MG/L P
4.900
6.300
6.900
4.100
7.780
6.612
6.600
4.400
3.300
4.000
5.100
5.400
5.400
00665
PHOS-TOT
MG/L P
5.500
7.200
7.800
8.500
8.800
13.000
7.300
5.100
3.700
5.300
7.000
7.800
7.200
50051
FLOW
RATE
INST MGD
0.250
0.250
0.250
50053
CONDUIT
FLOW-MGD
MONTHLY
0.250
-------
STORE! RETRIEVAL DATE 76/02/18
280223 P0280223
34 20 30.0 089 31 00.0 4
OXFORD
28 7.5 OXFORD
T/ENID LAKE
BURNEY BRANCH
11EPALES 2141204
0000 FEET DEPTH CLASS 00
P000200
DATE
FROM
TO
73/05/10
73/06/11
73/07/10
73/08/13
73/09/12
73/10/12
73/11/12
73/12/06
74/01/17
74/02/08
74/03/08
74/04/17
74/05/08
TIME DEPTH
OF
DAY FEET
08 20
08 00
08 30
08 30
08 00
09 00
09 30
09 00
13 45
08 45
09 30
09 00
08 30
00630
N02&N03
N-TOTAL
MG/L
0.210
0.010K
0.020
0.020
0.031
0.020
0.110
0.170
0.080
0.160
0.280
0.080
0.040
00625
TOT KJEL
N
MG/L
12.600
11.700
12.600
12.600
17.600
22.000
15.500
11.500
32.000
12.000
10.000
33.000
19.000
00610
NH3-N
TOTAL
MG/L
1.800
0.920
0.700
1.300
2.360
4.900
3.900
3.780
10.600
3.800
2.750
7.100
3.600
00671
PHOS-DIS
ORTHO
MG/L P
4.500
6.900
6.000
5.300
9.620
1.760
9.800
5.400
<+.700
5.880
5.700
7.450
6.700
00665
PHOS-TOT
MG/L P
6.100
8.600
7.900
8.900
11.500
11.300
7.000
10.000
7.500
7.350
20.000
9.800
50051
FLOW
RATE
INST MGD
0.150
0.150
0.150
50053
CONDUIT
FLOW-MGO
MONTHLY
0.150
------- |