U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
BUNDICK LAKE
BEAUREGARD PARISH
LOUISIANA
EPA REGION VI
WORKING PAPER No, 533
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
699-440
-------
REPORT
ON
BUNDICK LAKE
BEAUREGARD PARISH
LOUISIANA
EPA REGION VI
WORKING PAPER No, 533
WITH THE COOPERATION OF THE
LOUISIANA WILD LIFE AND FISHERIES COMMISSION
AND THE
LOUISIANA NATIONAL GUARD
MARCH, 1977
-------
REPORT ON BUNDICK LAKE
BEAUREGARD PARISH, LOUISIANA
EPA REGION VI
by
National Eutrophication Survey
Water and Land Quality Branch
Monitoring Operations Division
Environmental Monitoring & Support Laboratory
Las Vegas, Nevada
and
Special Studies Branch
Corvallis Environmental Research Laboratory
Corvallis, Oregon
Working Paper No. 533
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
March 1977
-------
CONTENTS
Page
Foreword i i
List of Louisiana Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 6
IV. Nutrient Loadings 12
V. Literature Reviewed 18
VI. Appendices 19
-------
ii
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, 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
planning [§303(e)], water quality criteria/standards review
[§303(c)L 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.
-------
m
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, nultivariate 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 Louisiana Wild Life and
Fisheries Commission, Division of Water Pollution Control for
professional involvement, to the Louisiana National Guard for
conducting the tributary sampling phase of the Survey, and to
those Louisiana wastewater treatment plant operators who pro-
vided effluent samples and flow data.
Robert A. Lafleur, Chief; J. Dale Givens, Assistant Chief;
Lewis R. Still, Biologist; Louis Johnson, Biologist; Lee Cau-
barreaux, Biologist; Darrell Reed, Engineer; Dempsey Alford,
Biologist; and Elwood Goodwin, Water Quality Control Technician,
all of the Louisiana Wild Life and Fisheries Commission, Division
of Water Pollution Control reviewed the preliminary reports and
provided critiques most useful in the preparation of this
Working Paper Series.
Major General Q'Neil Daigle, Jr., the Adjutant General of
Louisiana, and Project Officer Colonel Lawrence P. Dupre, who
directed the volunteer efforts of the Louisiana National Guards-
men, are also gratefully acknowledged for their assistance to
the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF LOUISIANA
LAKE NAME
Anacoco Lake
Lake Bistineau
Black Bayou
Black Lake
Bruin Lake
Bundick Lake
Caddo Lake
Cocodrie Lake
Cocodrie Lake (Lower)
Concordia Lake
Cotile Lake
Cross Lake
D'Arbonne Lake
False River Lake
Indian Creek Reservoir
Saline Lake
Turkey Creek Lake
Lake Vernon
Lake Verret
PARISH
Vernon
Bienville, Webster
Caddo
Natchitoches and Red River
Tensas
Beauregard
Caddo (Menon and Harrison
in Texas)
Concordia
Rapides
Concordia
Rapides
Caddo
Union
Pointe Coupee
Rapides
LaSalle
Franklin
Vernon
Assumption
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BUNDICK LAKE
Tributary Sampling Site
X Lake Sampling Site
Sewage Treatment Facility
Drainage Area Boundary
?Mi.
Map Location
-------
REPORT ON BUNDICK LAKE, LOUISIANA
STORE! NO. 2205
I. CONCLUSIONS
A. Trophic Condition:*
Survey data indicate that Bundick Lake is eutrophic,
i.e., nutrient rich and highly productive. Whether such
nutrient enrichment is to be considered beneficial or
deleterious is determined by its actual or potential im-
pact upon designated beneficial water uses of each lake.
Of the 19 Louisiana lakes sampled in 1974, only 2
had higher median total phosphorus, 6 had higher median
inorganic nitrogen, and none had higher median orthopho-
phorus levels than Bundick Lake. Low Secchi disc visi-
bility and high potential for primary productivity as
measured by algal assay control yields were noted. Chloro-
phyll a^values ranged from 6.1 yg/1 in the fall to 38.5 yg/1
in the summer, with a mean of 20.5 yg/1.
Field limnologists reported patches of floating macro-
phytes and some mats of phytoplankton along the shoreline
areas of the lake during summer and autumn sampling.
*See Appendix E.
-------
B. Rate-Limiting Nutrient:
Algal assay results indicate that Bundick Lake was limited by
available nitrogen. Spikes with nitrogen alone, or nitrogen and
phosphorus simultaneously resulted in increases in assay yield.
Addition of phosphorus alone did not stimulate a growth response.
The ratio of available nitrogen to orthophosphorus (N/P) in sam-
pled waters substantiate nitrogen limitation.
C. Nutrient Controllability:
1. Point sources -
Point sources contributed 27.0% of the total phosphorus
loading reaching Bundick Lake. South Fort Polk contributed
16.8% and the city of De Ridder contributed 10.2%. The
present loading of 7.50 g/m^/yr is six times that proposed
by Vollenweider (1975) as "eutrophic" for a lake of such
volume and retention time. However, Vollenweider's model
may not apply to water bodies with short hydraulic retention
times and the hydraulic retention time of Bundick Lake is only
15 days.
2. Nonpoint sources -
The mean annual phosphorus load from measured tributaries
amounted to 61.5% of the load to Bundick Lake. Bundick Creek
contributed 46.1% while ungaged tributaries contributed 11.3%
of the load. However, loading calculations for Bundick Lake
-------
yield a net export of nitrogen indicating sampling was not
adequate to accurately depict actual nitrogen loading and
export rates.
In general, few lakes are nitrogen limited as a result
of low nitrogen. Rather, excessive phosphorus levels shift
limitations to nitrogen or other factors. Regardless of the
primary nutrient limitation suggested by either algal assay
or nutrient ratios, the most feasible approach to nutrient
control, if desirable, is through available phosphorus con-
trol technology and subsequent establishment of phosphorus
limitation within the water body.
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
Lake and drainage basin characteristics are itemized below.
Lake surface area and mean depth were provided by the State of
Louisiana. Maximum depth was obtained from maps provided by the
Louisiana Stream Control Commission. Tributary flow data were
provided by the Louisiana District Office of the U.S. Geological
Survey (USGS). Mean hydraulic retention time was obtained by
dividing the lake volume by the mean flow of the outlet. Precipi-
tation 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:
2
1. Surface area: 7.07 km .
2. Mean depth: 1.6 meters.
3. Maximum depth: 7.6 meters.
4. Volume: 11.348 x 106 m3.
5. Mean hydraulic retention time: 15 days.
-------
B. Tributary and Outlet:
(See Appendix B for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km?) (m3/sec)
A-2 Bundick Creek 310.8 4.15
B-l Palmetto Creek 45.6 0.61
C-l Deer Creek 44.5 0.59
D-l Dry Creek 11.3 0.15
Minor tributaries and
immediate drainage - 127.6 1.80
Totals 539.8 7.30
2. Outlet - A-l Bundick Creek 546.5 8.98
C. Precipitation:
1. Year of sampling: 180.0 cm.
2. Mean annual: 150.0 cm.
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III. LAKE WATER QUALITY SUMMARY
Bundick Lake was sampled three times during the open-water
season of 1974 by means of a pontoon-equipped Huey helicopter.
Each time, samples for physical and chemical parameters were
collected from two stations on the lake and from one or more
depths at each station (see map, page v). During each visit,
depth-integrated samples were collected from each station for
chlorophyll a_ analysis and phytoplankton identification and enu-
meration. During the first and last, 18.9-liter depth-integrated
samples were composited for algal assays. Maximum depths sam-
pled were 1.5 meters at Station 01 and 0.6 meters at Station 02.
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 III-A for waters at the surface and at the
maximum depth for each site. Results of the phytoplankton counts
and chlorophyll a^ determinations are included in III-B. Results
of the limiting nutrient study are presented in III-C.
-------
3TO-ET CODE 2''
PHYSICAL A\!D CnEMCAL CH
( 5/30/74 )
( 11/12/74
p A * A y. E T t K IM *
TtMPtPATUnt «DER CfJT)
O.-l. ^ M DEPTi- 3
MAX DEPTH** 2
DISSOLVED 0>.Y(iEN (MG/L)
o.-i. s M fiE^T* a
MAX DEPTH** 2
CONDUCTIVITY (UMHOs)
O.-l. 5 M DEPTH 3
MAX DEPTH** t
PH (STANDAPU UNITS)
O.-l. 5 M OEPTr. 3
MAX DEPTH-** 2
TOTAL ALKALINITY IM^/LI
O.-l. 5 M uEPT-i 3
MAX DEPTH** 2
TOTAL P (MG/L)
O.-l .5 M DEPTH 3
MAX DEPTH** 2
DISSOLVED 'Jr-ThO P (MG/L)
O.-l. 5 M OEPTH 3
MAX DEPTH** 2
N02»N03 (MG/L)
O.-l. 5 M Ot->TH j
MrtX 0£FTH<»* 2
AMMONIA
O.-K1? M OEHTH 3
MAX DEPTH** 2
KJELDAHL M (MG/L)
n.-l.SMUtf-TH 3
MAX uEPTrt** 2
MAN«
21.6- 24.2
21 .H- 24.2
7.0- 8.0
7.0- 8.0
50.- 125.
tin.- 125.
6.4- 6.5
6.4- 6.5
10.- 1C.
10.- 10.
0. 094-0. 18b
0. 102-0. 1«5
0.035-0.071
0.036-0.071
0.120-0.250
0.120-n.?50
O.OSO-0.100
0.050-0. 100
0.700-n.HOO
0.700-0. HOO
= ?
^itO IAN
21 .a
23. U
7.5
7.b
50.
«JH.
6.5
6.5
10.
10.
0.102
0.143
0.036
0.053
0.12J
O.IBb
0.060
0.075
0.700
0.75U
Max
DtP fn
(METE
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
o.o-
0.0-
0.0-
0.0-
0.0-
0.0-
ftS)
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
O.r,
0.6
0.6
0.6
0.6
0.6
O.h
0.6
0.6
N*
4
2
2
2
4
2
4
2
4
2
u
*
4
2
4
2
4
2
4
2
HANGE
27.b-
27.5-
t.4-
4.4-
59.-
SS.-
6.6-
6.6-
20.-
21.-
0.116-0
0.122-0
0.045-0
0.047-0
0.020-0
0.020-0
0.030-0
0.030-0
0.600-0
U.600-0
28.7
26.7
5.6
5.6
75.
75.
7.0
6.6
25.
24.
.212
.212
. US>4
.094
.060
.060
.070
.040
.«00
.600
= 2
Mtoi AN
27.3
20. 1
3.0
5.0
67.
67.
6.8
6.7
23.
23.
0.15V
0.167
0.064
0.070
0.041
0.040
0.040
0.03b
0.600
0.600
(METERS) N»
0.0-
O.b-
0.6-
0.6-
0.0-
0.6-
0.0-
0.6-
0.0-
0.6-
0.0-
O.M-
0.0-
0.6-
0.0-
0.6-
0.0-
0.6-
0.0-
0.6-
0.6
0.6
0.6
0 ,t>
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
3
•*
3
2
3
2
3
2
3
?
3
2
3
2
3
2
3
?
.s
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PANGE
1^.7-
lb.7-
6,4-
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50.-
50.-
5.8-
b.e-
10.-
10.-
0. l^V-0
0.2bb-0
0.075-0
O.OB5-0
0.060-0
0 . 0 M 0 - 0
0.040-0
0.060-0
0.700-0
0.700-0
17.2
17.1
8.2
8.2
59.
5v.
6.2
6.2
11.
11.
.350
.350
.194
.194
.310
.310
.120
.120
.HOO
.HOO
= 2
17.1
lr.,4
8.0
7.3
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55.
6.2
6.0
10.
11.
0.255
0.302
0.065
0.134
O.OftO
0.19b
0.060
0.090
0.800
0.750
MAX
DEPTH
(METERS)
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
0.0-
l.b
1.5
l.b
l.b
1 «3
1.5
Kb
Kb
Kb
l.b
l.b
KS
l.b
1.5
Kb
l.b
1.5
Kb
l.b
1.5
SECCnl DISC («ETE-
-------
B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
03/20/74
05/30/74
11/12/74
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Melosira
Cr.yptomonas
Trachelomonas
Aphanocapsa
Crucigenia
Other genera
Total
Melosira
Kirchneriella
Chlamydomonas
Cryptomonas
Microcystis
Other genera
Total
Dactyl ococcopsis
Melosira
Cyclotella
Scenedesmus
Kirchneriella
Other genera
Algal
Units
per ml
8,775
1,051
526
283
283
1,982
12,900
3,719
1,438
967
694
545
4,810
12,173
533
374
373
373
320
959
Total
2,932
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2. Chlorophyll a^ -
Sampling
Date
03/20/74
05/30/74
11/12/74
Station
Number
01
02
01
02
01
02
Chlorophyll a
(vig/1)
14.1
21.1
26.9
38.5
6.1
16.1
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10
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
a. 03/20/74
Spike(mg/l)
Control
0.05 P
0.05 P + 1.0 N
1.00 N
b. 11/12/74
Spike(mg/1)
Control
0.05 P
0.05 P + 1.0 N
1.00 N
Ortho P
Cone. (mg/1)
0.085
0.135
0.135
0.085
Inorganic N
Cone. (mg/1 )
0.335
0.335
1.335
1.335
Maximum yield
(mg/1 -dry wt. )
7.3
7.7
23.0
17.5
Ortho P
Cone (mg/1)
0.141
0.191
0.191
0.141
Inorganic N
Cone.(mg/1)
0.191
0.191
1.191
1.191
Maximum yield
(mg/1-dry wt.)
8.0
7.4
28.3
28.3
2. Discussion -
The control yields of the assay alga, Selenastrum capricor-
nutum, indicate that the potential for primary productivity in
Bundick Lake was high during the spring and fall samplings. The
substantial increases in yield in each assay with the addition of
nitrogen, and the lack of response to the addition of phosphorus
indicate nitrogen limitation. In the spring assay, the simultaneous
addition of nitrogen and phosphorus spikes resulted in maximum yield.
The N/P ratio in the field was 5/1 in the spring, 1/1 in the
summer, and 2/1 in the fall, suggesting that the lake was nitrogen
limited at those times (an N/P ratio of 14/1 or greater generally
reflects phosphorus limitation).
-------
n
It should be noted that significant chemical changes
took place in Louisiana lake samples between the time of
sample collection and assay analysis. The assay data
should be considered in this context and until such differ-
ences are resolved, used with caution for any predictions
of actual lake conditions. Such chemical changes are likely
to alter the assay control yield as well as modifying the
N/P ratio.
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12
IV. NUTRIENT LOADINGS
(See Appendix D for data)
For the determination of nutrient loadings, the Louisiana
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 February, March, and April
when two samples 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 Louisiana District Office of the USGS for the tribu-
tary sites nearest the lake.
In this report, nutrient loads for sampled tributaries, except
Dry Creek, Station D-l, were determined by using a modification of
the USGS computer program for calculating stream loadings. Nutrient
loads indicated for tributaries are those measured minus known point
source loads, if any.
Nutrient loadings for Dry Creek, Station D-l, and unsampled
"minor tributaries and immediate drainage" ("ZZ" of USGS) were
P
estimated by using the mean annual nutrient loads, in kg/km /yr, in
Deer Creek at Station C-l, and multiplying the means by the appro-
priate area in km^.
The operators of the North and South Fort Polk and De Ridder
wastewater treatment plants provided monthly effluent samples and
corresponding flow data.
-------
13
A. Waste Sources:
1. Known municipal -
Name
South Fort Polk
De Ridder
Population Mean Flow Receiving
Served* Treatment* (m^/d x IP3) Water*
10,110
8,800
2. Known industrial - None
Trickling
filter
Trickling
filter
5.284 Bundick Creek
3.785 Hickory Creek/
Flat Creek
*Sewage treatment plant questionnaires.
-------
14
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
% of
Source kg P/yr total
a. Tributaries (nonpoint load) -
A-2 Bundick Creek 24,440 46.1
B-l Palmetto Creek 5,570 10.5
C-l Deer Creek 2,085 3.9
D-l Dry Creek 530 1.0
b. Minor tributaries and immediate
drainage (nonpoint load) - 5,995 11.3
c. Known municipal STP's -
South Fort Polk 3,920 16.8
De Ridder 5,355 10.2.
d. Septic tanks* - <5 <0.1
e. Known industrial - None
f. Direct precipitation** - 125 0.2
Totals 53,020 100.0
2. Output - A-l Bundick Creek 31,130
3. Net annual P accummulation - 21,890
*Estimate based on two lakeside dwellings.
**Estimated (see NES Working Paper No. 175).
-------
15
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
% of
Source kg N/yr total
a. Tributaries (nonpoint load) -
A-2 Bundick Creek 121,865 48.4
B-l Palmetto Creek 24,495 9.7
C-l Deer Creek 14,480 5.7
D-l Dry Creek 3,670 1.5
b. Minor tributaries and immediate
drainage (nonpoint load) - 41,470 16.5
c. Known municipal STP's -
South Fort Polk 23,595 9.4
De Ridder 14,725 5.8
d. Septic tanks* - 20 <0.1
e. Known industrial - None
f. Direct precipitation** - 7,635 3.0
Totals 251,955 100.0
2. Output - A-l Bundick Creek 264,075
3. Net annual N export*** - 12,120
*Estimate based on two lakeside dwellings.
**Estimated (see NES Working Paper No. 175).
***Export probably due to unknown sources and/or sampling error.
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16
D. Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
Tributary kg P/km^/yr kg N/km2/yr
Bundick Creek 79 392
Palmetto Creek* 122 537
Deer Creek 47 325
Dry Creek 47 325
*Background levels for this tributary probably inflated by unknown
point sources upstream.
-------
17
E. 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
(q/m2/yr)
Estimated loading for Bundick Lake 7.50
Vollenweider's "eutrophic" loading 1.22
Vollenweider's "oligotrophic" loading 0.61
-------
V. LITERATURE REVIEWED
U.S. Environmental Protection Agency. 1975. National
Eutrophication Survey Methods 1973-1976. Working Paper
No. 175. National Environmental Research Center, Las
Vegas, Nevada, and Pacific Northwest Environmental Research
Laboratory, 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.
-------
19
VI. APPENDICES
APPENDIX A
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 B
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLO* INFORMATION FOR LOUISIANA
04/H/77
LAKE CODE 2205
BUNDICKS LAKE
TOTAL DRAINAGE AKEA OF LAKE
TRIBUTARY
2205A1
MONTH YEAR
MEAN FLOW DAY
FLOW DAY
2205A2
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
74
74
74
74
74
74
74
75
75
75
75
75
74
74
74
7<«
74
74
74
75
75
75
75
75
2.265
2.010
2.067
3.370
1.501
8.014
17.840
12.403
7.249
10.364
9.401
28.175
1.291
1.138
1.175
1.917
0.850
4.559
10.137
7.051
4.134
5.890
5.352
16.027
9
7
10
8
10
12
7
13
8
8
7
2
9
7
10
8
10
12
7
13
8
8
7
2
1.784
1.501
1.3C3
5.324
1.048
16.990
43.042
27.184
5.522
4.276
2.747
122.046
1.019
0.850
0.736
2.775
0.595
9.628
25.060
15.433
3.143
2.435
1.557
69.376
23
24
21
23
24
21
SUMMARY
TOTAL FLOW IN = 88.21
TOTAL FLOW OUT = 108.14
FLOW DAY
FLOW
6.626
5.578
6.031
3.766
3.171
3.426
MEAN
22U5A1
2205A2
2205bl
2205C1
220501
2205ZZ
546.5
310.8
45.6
44.5
11.3
134.7
12. 5*
6.57
0.96
0.93
0.15
2.86
14.81
7.45
1.10
i.oa
0.15
3.23
11.30
5.64
0.82
0.79
0.15
2.44
11.92
5.21
0.76
0.74
0.15
2.27
12.63
2.61
0.37
0.37
0.15
1.13
7.67
2.35
0.34
0.34
0.15
1.02
5.10
1.70
0.25
0.24
0.15
0.74
5.<+9
1.61
0.24
0.23
0.15
0.71
4.25
2.69
0.40
0.40
0.15
1.16
3.00
1.59
0.23 .
0.23
0.15
0.68
7.04
4.b2
0.68
O.bb
0.15
2.01
11.38
d.10
1.19
1.16
0.15
3.51
8.98
4.15
0.61
0.59
0.15
1.80
-------
TRIBUTARY PLOW INFORMATION FUR LOUISIANA
G^/ll/77
LA«;E CODE 2?05
oijNDICKS LAKE
MEAN MONTHLY FLOWS ANC JAIL* FLOWS(CMS)
TRIBUTARY MONTH . YE.AK MEAN FLOW DAY
2205C1
3205D1
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
74
7<»
74
74
74
74
74
75
75
75
75
75
74
74
74
74
74
74
74
75
75
75
75
75
74
74
74
74
74
74
74
75
75
75
75
75
FLOW DAY
FLOW DAY
FLOW
0.190
0.167
0.173
0.283
0.125
0.680
1.501
1.048
0.595
0.850
0.793
2.350
0.184
0.164
0.167
0.275
0.122
0.651
1.444
1.019
0.595
0.850
0.765
2.294
0.042
0.040
0.040
0.065
0.028
0.153
0.340
0.227
0.142
0.198
0.170
0.538
9
7
10
8
10
12
7
13
8
8
7
2
9
7
10
8
10
12
7
13
8
8
7
2
9
7
10
8
10
12
7
13
8
8
7
2
0.150
0.125
0.108
0.311
0.088
1.416
3.710
3.265
0.453
0.368
0.227
10.166
0.147
0.122
0.105
0.311
0.085
1.388
3.568
2.209
0.453
0.340
0.227
9.939
0.034
0.028
0.025
0.099
0.020
0.311
0.821
0.510
0.113
0.0«5
0.054
2.322
23
24
21
23
24
21
23
24
21
0.538
0.453
0.510
0.538
0.453
0.481
0.113
0.113
0.116
-------
APPENDIX C
PHYSICAL AND CHEMICAL DATA
-------
STORE! «ET*IEVAL OATt 76/12/11
NATL F.JTK'QPi-iICATIO'J
EPA-LAS VEGAS
220501
30 43 36.0
22
:? C-> 43.0
LOUISIANA
HEP.Si.ciS
3
0005 FEtT
DATE
FVOM
TO
74/03/20
74/05/30
74/11/12
00010
TI-'E OEi-'T-' wATt'K
OF TEMP
DAY FEET
13 45
13 45
11 00
11 00
P9 30
09 30
0000
0002
0000
000?
0000
0005
CtNT
21.8
21.8
27.5
27.5
17.2
17.1
00300 00077 OOOV4
00 TrcA JS" C.NiOUCTVY
StCChI FIELD
MG/L
7
4
a
8
I
.0
.4
.0
.2
NCHh'S MI
30
36
27
CuOivhO
50
50
59
5V
50
50
004 Ou 00»lu
"H T aLK
CACOJ
• SU
6.50
6.50
6. BO
6.60'
6.22
6.17
MG/L
lUK
IQ«,
20
21
10K
11
00610 UO^-'b On^'^0
NM3-N TOT i-.JfcL NO?f»NOJ '
TOTAL N N-TOTAL
MG/L
0.060
0.050
0.070
0.030
0.040
0.060
MG/L
0.700
0.70U
O.HOO
O.fiOO
o.aoo
0.700
MG/L
0.1PO
0.120
0.060
0.020
0.080
0.080
00671
••HOS-OIS
O^THO
Mfi/L M
0.035
0.036
0.045
0.047
0.07S
0.085
00665 32217 00031
DATE TIME DEPTH PMOS-TUT CHLUPHYL INCDT LT
FROM OF A RFMNINS
TO HAY FEET MG/L P UG/L PERCENT
74/03/20 13 45 0000 O.OV9 14.1
13 45 000? 0.102
74/05/30 11 00 0000 0.116 26.9
11 00 0002 0.122
11 00 0004 1.0
74/11/12 09 30 0000 0.129 6.1
09 30 0005 0.255
K VALUE KNOWN TO BE LESS THAN
INDICATED
-------
STORET RETRIEVAL. UATE 75/12/11
NATL EUTSOPnICATION
FPA-LAS VEGAS
220=02
30 45 ai.O 093 07 00.0
22
LOUISIANA
llti-ALES
3
UATE
FROM
TO
74/03/20
74/05/30
74/11/12
DATE
FROM
TO
74/03/20
74/05/30
74/11/12
TIvE OEVT"
OF
DAY FEET
14 00 0000
11 15 0000
11 lb 000?
09 15 0000
TIME DEPTH
OF
DAY FEET
14 00 0000
11 15 0000
11 15 0002
09 15 0000
oooio
4A1EP
TEMi-'
CENT
24.2
28.2
2H.7
15.7
0066b
PHOS-TOT
MG/L P
0.185
0.197
0.212
0.350
00300
DO
MG/L
9.0
5.6
6.4
32217
CHLRPHYL
A
UG/L
21.1
38.5
16.1
000/7
TKAMi.P
SECCnl
INCHES
28
36
25
00031
INCDT LT
REMNING
PEKCENT
o 0 0 V «•
CNDUCTVY
FIELD
125
75
75
00400
Pn
St,'
6.45
7.00
6. HO
5.85
1005 FEcT
00410
T ALK
CAC03
MG/L
10K
25
24
10*
00610
NH3-N
TOTAL
MB/L
0.100
0.040
0.040
0.120
TOT -,JtL
M
MG/L
O.bOO
0.600
O.oOO
O.iOO
110610
NO?f,N03
N-TOTAL
O.?50
n.030
O.OftO
0.310
PHOS-DIS
"G/L P
0.071
O.OH1
0.094
0.194
K VALUE KNOWN TO BE LESS THAN
INDICATED
-------
APPENDIX D
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STORE! RETRIEVAL DATF 77/Ot/ll
/TYPA/AMBNT/STPF-A--*
22C5A1
30 44 00.0 093 04 <*5.0 4
riJNOICK C-(EE*
2? 7.5 D*Y C^EE*
0/HUMOICK LAKE 102091
oNK OFF END OF 2NO*Y RO BELOW DAM
HE^ALES 04001004
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
74/06/09
74/07/07
74/08/10
74/09/08
74/10/10
74/1 1/12
74/12/07
75/01/13
75/02/08
75/02/23
75/03/08
75/03/24
75/04/07
75/04/21
75/05/02
00630 00625
TIME DEPTH NO?\N03 TOT KJEL
OF N-TOTAL N
DAY FEET
12
12
18
20
13
13
09
18
12
11
12
16
13
09
12
15
00
00
30
15
IS
40
35
55
30
00
45
00
45
on
MG/L
0
u
0
0
0
£
0
0
0
0
c
C
c
0
0
.016
.056
.012
.024
.024
.056
.104
.112
.192
.160
.098
.144
.085
.145
.oao
MG/L
i
0
i
0
i
c
0
0
0
0
0
0
0
0
1
.100
.700
.000
.700
.300
.600
.700
.800
.400
.800
.700
.800
.750
.900
.000
0)610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTrtO
MG/L
0.
0.
0.
0.
c.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
020
035
020
040
C65
OSO
045
104
040
048
030
048
025
045
070
MG/L
0.
0.
0.
0.
0.
c .
0.
0.
0.
0.
0.
0.
0.
0.
c .
p
045
015
010
035
020
045
065
096
080
072
066
064
055
070
055
MG/L P
0.135
0.100
0.090
0.080
0.090
0.100
0.120
0.130
0.110
0.120
0.140
0.120
0.110
0.120
0.110
-------
STOSET RETRIEVAL DATF. 77/r;4/li
22GSA2
30 49 05.0 093 13 45.0 4
BUNDICX C^EtK
22 15 SUGARTOaN
T/bUNOICK LAKE 1020*1
LA HWY 2b br(DG 1 M SE US HwY 171/190 JCT
11EPALES 04001004
0000 FEtT DEPTH CLASS 00
DATE
FROM
TO
74/06/09
74/07/07
74/08/10
74/09/08
74/10/10
74/1 1/12
74/12/07
75/01/13
75/02/08
75/02/23
75/03/08
75/03/24
75/04/07
75/04/21
75/05/02
00630 00625
TIME DEPTH N02sN03 TOT KJEL
OF N-TOTAL M
DAY FEtT
13
10
17
19
12
17
10
17
12
10
10
17
11
10
10
45
30
10
45
15
?0
45
30
15
40
40
30
45
40
45
MG/L
0
0
0
0
0
c
0
0
0
rt
*
c
,1
0
0
0
.420
.510
.460
.092
.768
.176
.168
.088
.320
.448
.328
.432
.590
.460
.160
MG/L
0
1
1
0
0
0
1
0
0
0
0
0
0
0
1
.700
.700
.000
.900
.eoo
.800
.200
.600
.650
.600
.600
.600
.400
.700
.250
00610 00671 OC665
NH3-N PHOS-DIS PHOS-TOT
TOTAL OfiTHO
MG/L
0
1
0
!)
0
0
0
0
0
n
0
0
0
0
0
.200
.100
.055
.063
.375
.050
.050
.160
.064
.080
.048
.104
.040
.100
.125
MG/L
0.
1.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
c.
0.
p
447
162
420
110
730
170
115
120
120
240
168
192
260
230
040
MG/L r>
0.525
l.bOO
0.490
0.175
0.850
0.240
0.210
0.140
0.150
0.310
0.240
0.260
0.320
0.480
0.080
-------
STORET RETRIEVAL OAT£ 77/0^/11
2205dl
30 46 20.0 093 14 30.0 4
PALMETTO OEEK
22 Ib SUGAftTOrtN
T/tiUNDIOK LAKE 102091
US HWY' 190/171 B«UG 1.6 MI N LA HWY 394
IIEPALES 0*001004
0000 FEET DEPTH CLASS 00
DATE
FROM OF
TO DAY
TIME DEPTH
FEET
74/06/09
74/07/07
74/08/10
74/09/08
74/10/10
74/1 1/12
74/12/07
75/01/13
75/02/08
75/02/23
75/03/08
75/03/24
75/04/07
75/04/21
75/05/02
14 45
10 15
00
09
in
on
15
00
30
30
17 45
11 30
11 00
10 30
00630
N02tiN03
N-TOTAL
MG/L
0.384
0.320
0.024
0.208
0.112
0. Ibd
0.232
0.184
0.296
C.184
0.368
0.432
0.525
0.530
0.330
00625
TOT KJEL
N
MG/L
0.500
0.8CO
1.100
0.900
0.^00
1.000
1.100
1.000
0.800
0.900
1.000
1.400
0.600
0.850
1.550
00610
NM3-M
TOTAL
MG/L
0.09Q
0.052
0.315
0.065
0.020
o.cro
0.060
0.096
0.240
0.096
0.212
0.112
0.055
0.070
0.210
00671
PrtOS-DIS
ORTHO
MG/L P
0.346
0.255
0.200
0.150
0.110
0.140
0.120
0.208
0.160
0.200
0.232
0.163
0.345
0.140
00665
PHOS-TOT
MG/L P
0.390
0.405
0.306
0.200
C.220
U.240
0.270
0.180
0.270
0.280
0.320
0.360
0.280
0.460
0.210
-------
STO«ET RETRIEVAL DATE 77/04/11
/TYPA/AMBNT/STPEAM
DATE TIME DEPTH NOr7
FROM OF
TO DAY FEET
74/06/03
74/07/07
74/08/10
74/09/08
74/10/10
74/11/12
74/12/07
75/01/13
75/02/08
75/02/23
75/03/08
75/03/24
75/04/07
75/04/21
75/05/02
13 00
10 SO
17 ?0
17 55
12 40
17 35
10 20
17 40
12 25
10 55
11 30
17 15
12 10
10 ?0
11 15
0630
e>N03
OTAL
'G/L
C.066
C.160
0.06H
0.048
0.040
0.048
0.14J,
0.104
0.088
0.048
0.044
0.144
0.075
0.110
0.195
00625
TOT KJEL
N
MG/L
0.700
0.800
0.700
0.400
0.650
1.800
0.500
0.300
C.400
0.500
1. 100
0.350
0.250
1.000
00610
NH3-N
TOTAL
MC,/L
O.C30
0.065
0.027
0.030
0.070
O.C40
C.I 40
0.048
0.024
0.016
0.033
0.072
0.030
0.030
0.105
00671
PnOS-OIS
GPTHO
MG/L P
0.0/5
0.125
0.075
0.075
0.065
0.080
0.125
0.048
0.056
0.072
0.056
0.096
C.065
0.080
C.080
11EPALES
0000 FEET
00665
PHOS-TOT
MG/L P
0.095
0.180
0.115
0.090
0.075
0.135
0.180
0.080
0.070
0.100
0.100
0.150
0.080
0.110
0.130
2205C1
30 47 15.0 093 10 20.0 4
OEE>? CREEK
22 15 SUGARTOrfN
T/b'JNOICK LAKE 102091
2NDRY RD dRDG 1.3 MI S* LA HWY 26 JCT
04001004
DEPT-i CLASS 00
-------
bTOHET WETSIFVAL OATr 77/04/1i
P205D1
3C 46 45.0 C93 06 45.0 4
?2 Ib S
T/aONOICK LAKE 102091
2NORY ^0 1147 1.6 MI S LA -H*Y 26 JCT
lltr'ALES 04001004
0000 FEET jEPTn CLAbS 00
DATE
FROM
TO
74/0 to/ 09
74/07/07
74/08/10
74/C9/08
74/10/10
74/1 1/12
74/12/07
75/01/13
75/02/08
75/02/23
75/03/08
75/03/24
75/04/07
75/04/21
75/05/0?
TIMF OEPT-
0»-'
JAY FEET
11
11
17
20
\2
17
10
18
12
11
11
17
12
10
11
00
10
35
10
SO
55
10
00
35
10
45
00
30
00
35
J0630 00625
- N02-SN03 TOT KJEL
N-TOTAL N
MG/L
0
0
rs
0
Q
0
0
0
0
0
c
o
0
0
o
.C2<*
.770
.116
.024
.0-JO
.040
.104
.032
.016
.016
.010
.064
.060
.115
.oeo
MG/L
2.
1.
U.
C.
1 .
r»
o!
0.
0.
0.
0.
0.
1.
0.
0.
300
300
700
900
^r-o
900
«oo
400
900
600
700
600
150
H50
750
OC610 00671 00665
N-ij-N PHOS-OIS K'HOS-TOT
TOTAL OPT HO
MO/L
0
0
0
0
0
t.
•0
0
0
0
0
0
0
0
0
.870
.095
.120
.045
.400
.035
.015
.016
.032
.024
.028
.080
.?7Q
.150
.070
KG/L
0.
0.
0.
0.
0.
V .
0 .
0.
0.
0.
0.
0.
0.
0.
0.
p
016
065
020
030
030
OriO
135
016
024
016
015
024
025
030
020
MG/L P
0.105
0.160
0.055
C.055
0 . 1 7i>
U. 18C
0.210
O.U40
0.050
0.060
0.065
0.070
0.060
0.070
0.040
-------
STORET RETRIEVAL DATE 77/04/11
DATE
FROM
TO
75/03/17
CP(T)-
75/03/17
75/04/16
CPITI-
75/04/16
75/05/22
75/06/26
CP(T)-
75/06/26
75/07/23
CP(T)-
75/07/23
75/08/25
CP(T>-
75/08/25
00630
TIME DEPTH N02NN03
OF N-TOTAL
DA* FEET MG/L
08
14
08
14
08
08
14
08
16
08
15
30
30
30
30
30
30
30
30
30
30
30
1.
1.
1.
2.
0.
0.
840
600
150
000
900
725
00625
TOT KJEL
N
MG/L
12
8
13
7
10
13
.000
.700
.000
.500
.500
.500
0*5610
NH3-N
TOTAL
MG/L
4
2
3
3
2
1
.620
.200
.450
.700
.400
.700
2205AA TF2205AA P010110
31 01 45.0 093 If 15.0 4
F05T POLK (S)
22 7.5 FORT POLK
T/8UNDIC* LAKE 1201v2
6UNOICK CREEK
11EPALES 0000100-*
COOO FEET DL^TH CLAS5 00
00671 00665
PHOS-DIS PHOS-TOT
ORTHO
MG/L P MG/L P
3.680
5.600
4.300
4.800 5.700
3.100 3.700
2.700
4.100
3.600
5.100
50051 50053
FLOW CONDUIT
KATE FLOw-MGO
INST MOD MONTHLY
2.100
1.630
1.860
2.400
2.380
2.360
1.350
1.340
1.350
1.900
2.200
2.350
-------
STORET RETRIEVAL DATE 77/04/11
/AM6NT/STREAM
2205X6 TF2205XA PQ08POO
30 51 30.0 093 16 00.0 4
OE RIDDER
22 is OE RIDDER
T/cJUNDICK LAKE 1020V2
HICKORY BRA^CM-FLAT CREEK
11EPALES 00001004
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
74/07/17
CP(T)-
74/07/17
74/08/26
CP(T)-
74/08/26
74/09/25
CP-
74/10/25
74/11/27
74/12/31
CP(T>-
74/12/31
75/02/12
CPtT)-
75/02/12
75/04/02
CP(T)-
75/04/02
75/06/11
CP(T>-
75/06/11
75/07/03
CP(T)-
75/07/03
75/08/13
00630
TIME DEPTH N026.N03
OF N-.TOTAL
GAY FEET MG/L
11
16
08
16
11
16
11
16
14
11
16
10
14
11
16
11
16
11
16
30
00
00
on
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
7.
0.
1.
5.
2.
3.
3.
0.
4.
5.
2.
360
120
800
760
480
040
120
160
600
-.00
500
00625
TOT KJEL
N
MG/L
7.300
9.600
6.700
12.000
8.100
5.300
7.300
10.000
2.950
5.100
6.500
00610 00671 00665 50051 50053
NHS-N PHOS-DIS PHOS-TOT FLOW CONDUIT
TOTAL OPTHO RATE FLOw-MGD
MG/L MG/L P MG/L P INST MGO MONTHLY
2.
0.
3.
5.
3.
?.
2.
0.
1.
1.
2.
300
220
250
300
750
500
960
300
100
350
800
2.880
3.850
5.000
2.700
1.600
2.700
1.400
2.400
3.500
4.400
4.700
4.300
5.750
3.600
2.000
3.450
5.700
1.900
2.800
4.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
-------
STORE! RETRIEVAL DATE 77/04/H
DATE
FROM
TO
75/03/17
CP(T)-
75/03/17
75/04/16
CP(T>-
75/04/16
75/05^2
CP(T>-
75/05/22
75/06/26
CPU>-
75/06/26
75/07/23
CP(T>-
75/07/23
75/08/25
CP(T)-
75/08/25
00630
TIME DEPTH N02&N03
OF N-TOTAL
DAY FEET MG/L
09
15
09
15
09
15
09
15
08
16
08
15
CO
00
00
no
00
00
30
30
30
30
30
30
2
2
4
1
3
1
.960
.200
.300
.900
.800
.000
00625
TOT KJEU
N
MG/L
14
24
19
25
18
24
.000
.250
.500
.500
.500
.000
2205YA TF2205YA P00752U
31 06 15.0 093 08 15.0 4
FOPT POLK (,N)
22 7.5 FO*T POLK
T/8U\OICK LAKE 120192
»HISKEY CHITTO CREtK
11EPALES 0000100-+
OOCO FEET DEPTH CLASS 00
OC610 00671 00665 50051 50053
NH3-N PHOS-OIS PhOS-TOT FLO* CONDUIT
TOTAL ORTHO RATE FLOrt-MGD
MG/L MG/L P MG/L P INST MGD MONTHLY
11.200 7.800 8.200 0.302
0.604
R.300 6.300
7.300
0.167 0.581
6.100
6.500 7.200 0.600 0.494
9.500 7.300
8.200
0.910 0.60<«
4.300
5.100 6.100
1.730
12.000 6.400 7.200 0.805
1.600
0.766
-------
APPENDIX E
PARAMETRIC RANKINGS OF LAKES
SAMPLED BY NES IN 1974
STATE OF LOUISIANA
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
?201 ANACOCO LAKE
220? BRUIN LAKE
2203 LAKE BISTINEAU
220* BLACK BAYOU
2205 BUNDICK LAKE
2207 COCOORIE LAKE
2208 COTILE LAKE
2209 CONCOROIA LAKE
2210 CROSS LAKE
2211 D'ARBONNE LAKE
2212 FALSE RIVER LAKE
2213 INDIAN CREEK
22H SALINE LAKE
2215 TURKEY CREEK LAKE
2216 LAKE VERRET
2217 LAKE VERNON
2219 BLACK LAKE
2220 COCODRIE
4807 CAODO LAKE
MEDIAN
TOTAL P
0.031
0.057
0.061
0.046
0.157
0.090
0.037
0.076
0.057
0.038
0.082
0.031
0.111
0.176
0.163
0.016
0.077
0.106
0.049
MEDIAN
INORG N
0.080
0.250
0.100
0.090
0.135
0.400
0.100
0.080
0.080
0.100
0.130
0.150
0.350
0.170
0.100
0.120
0.150
0.050
0.070
500-
MEAN SEC
455.833
450.333
458.000
453.417
469.667
479.000
442.333
468,333
475.250
458.250
442.500
458.333
493.000
477.833
481.428
436.667
454.000
478.333
463.562
MEAN
CHLORA
8.700
16.350
12.933
17.818
20.467
35.300
12.650
32.950
38.385
6.800
24.550
21.467
15.333
21.967
62.028
4.900
1?.733
33.433
20.125
15-
MIN oo
10.4-00
15.000
13.200
12.200
10.600
7.700
14.000
14.800
11.400
13.200
14.900
14.800
9.600
14.600
12.000
1.4.400
11.600
11.800
10.000
MEDIAN
DISS ORTHO P
0.007
0.012
o.oie
0.009
0.073
0 .026
0.011
0.009
0.010
0.011
0.023
0.010
0.025
0.033
0.056
0.007
0.015
0.014
0.008
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
?201 ANACOCO LAKE
2203 BRUIN LAKE
2203 LAKE RISTINEAU
2204 BLACK BAYOU
2205 BllNOICK LAKE
2207 COCODRIE LAKE
2208 COTILE LAKE
2209 CONCORDIA LAKE
2210 CROSS LAKE
2211 D'ARBONNE LAKE
2212 FALSE RIVER LAKE
2213 INDIAN CREEK
2214 SALINE LAKE
2215 TURKEY CREEK LAKE
2216 LAKE VERRET
2217 LAKE VERNON
2219 BLACK LAKE
2220 COCODRIE
4807 CADDO LAKE
MEDIAN
TOTAL P
92 (
61 (
50 (
72 (
11 (
28 (
83 (
44 (
56 (
78 (
33 (
92 (
17 (
0 t
6 (
100 (
39 (
22 (
67 (
16)
11)
9)
13)
2)
5)
15)
8)
10)
14)
6)
16)
3)
0)
1)
18)
7)
4)
12)
MEDIAN
INORG N
83
11
58
72
33
0
58
83
83
56
39
28
6
17
58
44
22
100
94
( 14)
( 2)
( 9)
( 13)
( 6)
( 0)
( 9)
( 14)
( 14)
( 9)
( 7)
( 5)
( 1)
( 3)
( 9)
( 8)
( 4)
( 18)
( 17)
500-
MEAN SEC
67
83
61
78
33
11
94
39
28
56
89
50
0
22
6
100
72
17
44
( 1?)
( 15)
( 11)
( 14)
( 6)
( 2)
( 17)
< 7)
( 5)
( 10)
( 16)
( 9)
( 0)
( 4)
( 1)
( 18)
< 13)
( 3)
( 8)
MEAN
CMLOKA
89
61
72
56
44 1
11 i
83 <
22 i
6 i
94 l
28 1
39 1
67 1
33 1
0 (
100 (
78 (
17 (
50 1
( 16)
( 11)
( 13)
( 10)
I 8)
I 2)
1 15)
( 4)
I 1)
I 17)
I 5)
[ ,7)
1 12)
! 6)
: o)
18)
14)
: 3)
: 9)
15-
MIN 00
83
0
*2
5.0
78 i
100 •
33
14
72
42 i
6 i
14 i
94 1
22 1
56 1
28 (
67 (
61 (
89 (
( 15)
( 0)
( 7)
( 9)
[ 14)
I 18)
I 6)
( 2)
( 13)
t 7)
( 1)
! ?>••
[ 17)
I 4)
: 10)
: 5)
: 12)
: ii>
: 16>
MEDIAN
DISS OP1HO P
94
50
33
81
0 <
17 i
61 i
81 '
69 i
56 1
28 1
69 1
22 1
11 1
6 I
100 (
39 (
44 (
89 (
( 17)
( 9)
( 6)
t 14)
( 0)
I 3)
1 11)
( 14)
I 12)
I 10)
I 5)
1 12)
! 4)
( 2)
1)
18)
7)
8)
16)
------- |