U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
U\KEPURDY
JEFERSON AiO SHELBY COUNTIES
ALABAMA
EPA REGION IV
WORKING PAPER Mo, 234
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440
-------
REPORT
ON
LAKEPURDY
JEFFERSON AM SHELBY COUNTIES
ALABAMA
EPA REGION IV
WORKING PAPER No, 234
WITH THE COOPERATION OF THE
ALABAMA WATER IMPROVEMENT COMMISSION
AND THE
ALABAMA NATIONAL GUARD
JULY 1976
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CONTENTS
Page
Foreword i i
List of Study Lakes - Alabama 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 11
V. Literature Reviewed 15
VI. Appendices 16
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ii
FOREWORD
The National Eutrophication Survey was Initiated 1n 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
E Tanning [§303(e)], water qualltv criteria/standards review
§303(c)], clean lakes [§314(a,b)], and water quality monitoring
[§106 and §305(b)] activities mandated by the Federal Water
Pollution Control Act Amendments of 1972.
-------
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, 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.
ACKNOWLEDGEMENTS
The staff of the National Eutrophication Survey (Office of
Research and Development, U.S. Environmental Protection Agency)
expresses sincere appreciation to the Alabama Water Improvement
Commission for professional involvement and to the Alabama National
Guard for conducting the tributary sampling phase of the Survey.
E. John Williford, Chief, Surveillance and Monitoring Section;
and John C. Chitwood, Biologist, Surveillance and Monitoring Section;
and Sam L. Coleman, Water Quality Planning Section; and M. H. Floyd,
Engineer, Surveillance and Monitoring Section; and Truman Green,
Engineer, Municipal Waste Control Section; and Tim McCartha, Biologist,
Surveillance and Monitoring Section; and James E. Mclndoe, Engineer,
Water Quality Planning Section; and Richard T. Maddox, Engineer,
Industrial Waste Control Section; and James T. White, Engineer,
Municipal Waste Control Section provided invaluable lake docu-
mentation and counsel during the course of the Survey.
Major General Charles A. Rollo, Adjutant General of Alabama,
and Project Officer Lt. Col. Wash B. Ray, who directed the volun-
teer efforts of the Alabama National Guardsmen, are also gratefully
acknowledged for their assistance to the Survey.
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IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF ALABAMA
LAKE NAME
Bankhead
Gantt
Guntersville
Holt Lock and Dam
Lay
Martin
Mitchell
Pickwick
Purdy
Weiss
Wilson
COUNTY
Waiker
Covington
Marshall, Johnson
Tuscaloosa
Chi 1 ton, Coosa
Elmore, Tallapoosa
Coosa, Chi 1 ton
Colbert, Lauderdale
(Tishomingo in MS
and Hardin in TN)
Jefferson, Shelby
Cherokee
Lauderdale, Colbert,
Lawrence
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86'40'
Ala.
JiT~
Map Location
33*35'—
LAKE PURDY
Tributary Sampling Site
X Lake Sampling Site
/" Direct Drainage Area Boundary
5 Sewage Treatment Facility
o i 2 3 4 5 Km.
o 2 3 Mi.
Scale
33*30'
33° 25'—
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LAKE PURDY, ALABAMA
STORE! NO. 0115
I. CONCLUSIONS
A. Trophic Condition:*
Lake Purdy is considered eutrophic, i.e., nutrient
rich and highly productive, based upon field observations
and analysis of Survey data. Whether such nutrient enrich-
ment is to be considered beneficial or deleterious is
determined by its actual or potential impact upon designated
beneficial water uses of each lake.
Algal blooms were present during spring, summer, and
fall samplings. The relatively high water transparency
found in the spring deteriorated rapidly to a low of about
100 cm in the summer. Nutrient levels and the potential
for primary productivity as measured by the algal assay
control yields are relatively high. Dissolved oxygen
concentrations were depressed with depth in the summer
and hydrogen sulfide production was detected.
B. Rate-Limiting Nutrient:
The algal assay results indicate the rate-limiting
nutrient in Lake Purdy was phosphorus. The ratio of
inorganic nitrogen to orthophosphorus (N/P) during lake
*See Appendix E.
-------
sampling in August indicates primary limitation by phosphorus.
However, low N/P ratios in March and November indicate nitrogen
limitation at those times.
C. Nutrient Controllability:
1. Point sources -
Point sources were estimated to contribute 54.8% of
the total phosphorus load to Lake Purdy during the sampling
year. The city of Leeds contributed this entire point
source load.
The present calculated loading of 3.37 g P/m2/yr is
about four times that proposed by Vollenweider (1975) as
eutrophic for a lake with such volume and retention time.
Although total elimination of point source contributions
from the city of Leeds would not reduce loading to an
oligotrophic level, it is likely that a high degree of
phosphorus removal would reduce the incidence of algal
blooms in the reservoir.
2. Nonpoint sources -
The mean annual phosphorus load from nonpoint sources
was about 45.2% of the total reaching Lake Purdy. Mea-
sured tributaries accounted for about 37,4% of the total,
and ungaged tributaries were estimated to account for 7.3%.
In general, few lakes are nitrogen limited as a re-
sult 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 control technology and subsequent establish-
ment 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 Alabama Water Improvement Commission; maximum depth was
estimated on the basis of National Eutrophication Survey
(NES) sampling data; tributary data were provided by the
Alabama District Office of the U.S. Geological Survey (USGS)
(outlet drainage area includes the lake surface area). Mean
hydraulic retention time was obtained by dividing the lake
volume by mean flow of the outlet. Precipitation values were
estimated by methods as outlined in NES Working Paper No. 175.
A table of metric/English conversions is included as Appendix A.
A. Lake Morphometry:
1. Surface area: 4.30 km2.
2. Mean depth: 5.1 m.
3. Maximum depth: 15.2 m.
4. Volume: 21.930 x 10^ m3.
5. Mean hydraulic retention time: 110 days.
B. Tributary and Outlet (see Appendix B for flow data):
1. Tributaries -
Drainage Mean flow
Name area(km2) (m^/sec)
A(2) Little Cahaba River 60.3 1.33
B(l) Cox Creek 8.3 0.18
C(l) Unnamed Creek 4.4 0.09
Minor tributaries and
immediate drainage - 29.2 0.73
Totals 102.2 2.33
2. Outlet - A(l) 106.4 2.33
Little Cahaba River
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C. Precipitation:
1. Year of sampling: 61.3 cm.
2. Mean annual: 53.2 cm.
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III. LAKE WATER QUALITY SUMMARY
Lake Purdy 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 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
enumeration. During the first visit, a single 18.9-liter
depth-integrated sample was composited for algal assays.
Maximum depths sampled were 4.0 m at Station 1, 13.7 m at
Station 2, and 3.7 m at Station 3. 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.
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LAKE PURDY
STORET CODE 0115
PARAMETER
( 3/19/73 )
MAX
S»«o = 3 DEPTH
RANGE
RANGE MEDIAN (METEKS)
PHYSICAL AND CHEMICAL CHARACTERISTICS
( 8/30/73 )
S»»« = 3
MAX
DtPTH
RANGE
N* RANGE MEDIAN (METERS)
N*
( ii/ a/73 >
MAX
S«»o - 3 DEPTH
RANGE
RANGE MEDIAN (METERS)
0.-1.5 M DEPTH
MAX DEPTH""
DISSOLVED OXYGEN
0.-1.5 M DEPTH
MAX DEPTH**
4
3
(MG/L)
1
3
CONDUCTIVITY (UMHOS)
0.-1.5 M OEPTH 4
MAX DEPTH*" 3
PH (STANDARD UNITS)
0.-1.5 M DEPTH 4
MAX DEPTH** 3
TOTAL ALKALINITY
0.-1.5 M DEPTH
MAX DEPTH**
TOTAL P (MG/L)
0.-1.5 M DEPTH
MAX DEPTH**
DISSOLVED ORTHO P
0.-1.5 M DEPTH
MAX DEPTH**
N02»N03 (MG/L)
0.-1.5 M DEPTH
MAX DEPTH**
AMMONIA (MG/L)
0.-1.5 M OEPTH
MAX DEPTH**
KJELOAHL N (MG/L)
0.-1.5 M DEPTH
MAX DEPTH**
(MG/L)
4
3
4
3
(MG/L)
4
3
4
3
4
3
4
3
17.5- 18.4
10. 0- 17.6
8.8- 8.8
4.4- 8.8
205.- 235.
195.- 240.
8.3- 8.8
7.7- 8.3
94.- 101.
89.- 108.
0.036-0.101
0.040-0.102
0.012-0.060
0.013-0.060
0.030-0.220
0.050-0.150
0.050-0.110
0.040-0.080
0.400-1.000
0.200-0.400
18.1
15.9
8.8
8.6
220.
330.
8.5
8.3
100.
99.
0.072
0.046
0.036'
0.026
0.080
0.140
0.055
0.070
0.600
0.300
0.0-
3.4-
1.5-
3.4-
0.0-
3.4-
0.0-
3.4-
0.0-
3.4-
0.0-
3.4-
0.0-
3.4-
0.0-
3.4-
0.0-
3.4-
0.0-
3.4-
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
1.5
13.7
5
3
3
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
28.6- 30.4
17.7- 28.4
3.1- 7.8
0.4- 1.2
156.- 166.
186.- 223.
8.2- 9.0
7.4- 8.2
58.- 71.
72.- 130.
0.028-0.059
0.034-0.141
0.009-0.022
0.013-0.032
0.070-0.190
0.050-0.110
0.130-0.240
0.200-1.460
O.dOO-1.900
0.900-2.100
29.2
27.1
6.6
1.2
162.
215.
8.6
7.8
65.
80.
0.033
0.060
0.014
0.014
0.140
0.110
0.200
0.330
1.500
0.900
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
0.0- 1.5
1.8- 12.2
5
3
3
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
15.5- 18.6
15.5- 17.7
8.2- 9.6
7.4- 9.6
176.- 180.
176.- 180.
7.1- 8.7
7.1- 8.2
39.- 108.
39.- 108.
0.035-0.082
0.035-0.059
0.006-0.016
0.006-0.016
0.030-0.060
0.040-0.060
0.030-0.070
0.040-0.070
0.500-1.000
0.500-0.600
17.8
17.7
a. a
8.8
178.
180.
8.4
8.2
93.
99.
0.057
0.056
0.012
0.013
0.030
0.050
0.040
0.070
0.700
0.600
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-
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
1.5
8.5
SECCHI DISC (METERS)
0.9- 3.0
2.7
0.9- 1.1
1.0
1.5- 1.5
1.5
» N = NO. OF SAMPLES
»* MAXIMUM DEPTH SAMPLED AT EACH SITE
«»» S = NO. OF SITES SAMPLED ON THIS DATE
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B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
03/19/73
08/30/73
11/02/73
Algal
Dominant Units
Genera per ml
1. Anabaena 542
2. Flagellates 362
3. Melosira 90
4. Dinobryon 78
5. Lyngbya 36
6. Nitzschia 36
Other genera 152
Total 1,296
1. Merismopedia
2. Oscillatoria
3. Melosira
4. Flagellates
5. Anabaena
Other genera
Total
1. Melosira 1,890
2. Coelosphaerium 724
3. Anabaena 671
4. Flagellates 618
5. Cryptomonas 194
Other genera 990
Total 5,087
2. Chlorophyll a^ -
Sampling
Date
03/19/73
08/30/73
11/02/73
Station
Number
1
2
3
1
2
3
1
2
Chlorophyll a_
(yg/liter)
5.1
5.2
2.8
15.5
11.9
14.3
25.5
23.4
10.7
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C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Spike (mg/1)
Control
0.010 P
0.020 P
0.050 P
0.025 P + 0.5
0.050 P + 1.0
1.00 N
Filtered and
Spike(mg/l )
Control
0.010 P
0.020 P
0.050 P
0.025 P + 0.5
0.050 P + 1.0
1.00 N
Discussion -
Ortho P
Cone. (mg/1)
0.016
0.026
0.036
0.066
N 0.041
N 0.066
0.016
nutrient spiked
Ortho P
Cone. (mg/1 )
0.017
0.027
0.037
0.067
N 0.042
N 0.067
0.017
The results of the algal
Inorganic N
Cone. (mg/1)
0.167
0.167
0.167
0.167
0.667
1.167
1.167
-
Inorganic N
Cone. (mg/1)
0.150
0.150
0.150
0.150
0.650
1.150
1.150
assay with
capricornutum indicate that the potential
Maximum Yield
(mg/l-dry wt.)
2.6
4.4
5.2
5.0
13.9
25.4
2.3
Maximum Yield
(mg/l-dry wt. )
2.4
3.7
4.2
4.6
16.1
28.4
2.8
Selenastrum
primary
productivity of Lake Purdy was relatively high at the
time the sample was collected. Also, the increased
yields with increased levels of orthophosphate (to
about 36 yg/liter) indicate the lake is phosphorus
limited. No growth response accompanied spikes of
nitrogen alone.
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10
The N/P ratio in the field samples was 25/1 in August,
suggesting primary limitation by phosphorus. However, the
N/P ratios for March and November were 5/1 and 7/1, respectively,
indicating nitrogen limitation at those times (a mean N/P ratio
of 14/1 or greater generally reflects phosphorus limitation).
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11
IV. NUTRIENT LOADINGS
(See Appendix D for data)
For the determination of nutrient loadings, the Alabama
National Guard collected monthly near-surface grab samples
from each of the tributary sites indicated on the map (page v),
except for the high runoff months of January and February when
two samples were collected. Sampling was begun in March 1973
and was completed in February 1974.
Through an interagency agreement, stream flow estimates for
the year of sampling and a "normalized" or average year were
provided by the Alabama District Office of the USGS for the
tributary 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 tributaries are those measured minus known
point source loads, if any.
Nutrient loadings for unsampled "minor tributaries and
immediate drainage" ("II" of USGS) were estimated by using the
r>
mean annual nutrient loads, in kg/km /yr for Cox Creek and
Unnamed Creek at stations B(l) and C(l), and multiplying the
means by the II drainage area in km2.
Nutrient loads for the city of Leeds wastewater treatment
plant were estimated at 1.134 kg P and 3.401 kg N/Capita/yr.
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12
Waste Sources:
1. Known municipal -
Name
Leeds
Population Mean Flow Receiving
Served * Treatment * (m3/d x IP3) Water
7000
Trickling
Filter
2.650**
2. Known industrial - None
Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Source kg P/yr
a. Tributaries (nonpoint load) -
A(2) Little Cahaba River 4,970
B(l) Cox Creek 285
C(l) Unnamed Creek 165
b. Minor tributaries and immediate
drainage (nonpoint load) -
c. Known municipal STP's -
Leeds
2.
3.
d. Septic tanks*** -
e. Known industrial - None
f. Direct precipitation**** -
Totals
1,050
7,940
5
75
14,490
Outputs - A(l) Little Cahaba River 5,825
Net annual P accumulation - 8,665
Little Cahaba
River
% of
total
34.3
2.0
1.1
7.3
54.8
0.5
100.0
*U.S. EPA, 1971.
**Estimated at 0.3785 m3/capita/day.
***Estimate based on 25 lakeshore residences.
****Estimated (See NES Working Paper No. 175).
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13
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
% of
Source kg N/yr total
a. Tributaries (nonpoint load) -
A(2) Little Cahaba River 26,520 32.7
B(1) Cox Creek 6,745 8.3
C(l) Unnamed Creek 1,700 2.1
b. Minor tributaries and immediate
drainage (nonpoint load) - 17,520 21.6
c. Known municipal STP's -
Leeds 23,805 29.3
d. Septic tanks* - 265 0.3
e. Known industrial - None
f. Direct precipitation** - 4,640 5.7
Totals 81,195 . 100.0
2. Outputs - A(l) Little Cahaba River 69,375
3. Net annual N accumulation - 11,820
D. Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
7 2
Tributary kg P/km /yr kg N/km /yr
A(2) Little Cahaba River 82 440
B(l) Cox Creek 34 813
C(l) Unnamed Creek 38 386
*Estimate based on 25 lakeshore residences.
**Estimated (see NES Working Paper No. 175).
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14
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/m2/yr)
Estimated loading for Lake Purdy 3.37
Vollenweider's eutrophic loading 0.80
Vollenweider's oligotrophic loading 0.39
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15
V. LITERATURE REVIEWED
U.S. EPA, 1971. "Inventory of Wastewater Treatment Facilities"
Volume 4. Office of Media Programs, Office of Water Programs,
Washington, D.C.
U.S. Environmental Protection Agency. 1975. National Eutro-
phication Survey Methods 1973-1976. NES 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 Final
Reference to the Phosphorus Loading Concept in Limnology.
Schweiz. A. Hydrol. 37: 53-84.
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VI. APPENDICES
APPENDIX A
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
-4
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
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APPENDIX B
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR ALABAMA
07/23/76
LAKE CODE 0115
LAKE PURDY
TOTAL
TRIBUTARY
0115A1
0115A2
OllSril
011SC1
0115ZZ
DRAINAGE AREA OF LAKE (SO KM) 106,
SUB-DRAINAGE
AREA ISO KM)
106. 4
60.3
8.3
4.4
33. 4
,4
NORMALIZED FLOWS (CMS)
JAN
2.55
2.07
0.283
0.150
1.13
FEB
2.97
2.07
0.283
0.1SO
1.13
MAR
3.96
2.27
0.311
0.164
1.25
APR
2.80
1.59
0.218
0.116
0.88
MAY
2.61
1.47
0.204
0.108
0.82
JUN
1.70
0.96
0.133
0.071
0.54
. JUL
1.90
1.08
0.147
0.079
0.59
AUG
1.87
1.05
0.144
0.076
0.59
SEP
1.98
0.65
0.088
0.045
0.34
OCT
1.98
0.51
0.068
0.037
0.28
NOV
1.70
0.42
0.0
0.0
0.24
DEC
1.98
1.81
0.249
0.133
0.99
MEAN
2.33
1.33
0.177
0.094
0.73
SUMMARY
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE AREAS =
106.4
106.4
TOTAL FLOW IN
TOTAL FLOW OUT
27.99
28.01
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS>
TRIBUTARY MONTH YEAR MEAN FLOW DAY
0115A1
FLOW DAY
FLOW DAY
FLOW
0115A2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
74
74
5.663
5.097
3.398
1.586
2.039
1.982
2.039
2.322
1.529
1.138
6.898
5.542
3.398
2.605
1.869
0.878
1.161
0.793
0.453
0.595
0.991
2.461
3.738
3.087
4
2
4
18
13
16
11
5
2
7
12
9
4
2
4
IB
13
16
11
5
2
7
12
9
5.097
8.495
2.209
1.331
1.359
1.727
2.747
1.756
1.555
0.855
12.675 25
4.950 23
2.633
3.200
1.246
0.538
0.566
0.765
0.368
0.425
0.003
0.957
6.853 25
2.158 23
3.639
10.534
1.846
4.672
-------
TRIBUTARY FLOW INFORMATION FOR ALABAMA
07/32/76
LAKE CODE 0115
LAKE PUROr
MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY MONTH YEAR MEAN FLOW DAY
011SB1
0115C1
0115Z2
3
4
5
6
7
fl
q
10
1 1
12
1
2
3
4
5
6
7
a
9
10
11
i?
i
?
3
4
5
6
7
8
q
10
11
i?
l
?
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
74
74
0.453
0.368
0.258
0.1?2
0.159
0.108
0.0
0.08?
0.136
0.337
0.515
0.428
0.246
0.190
0.136
0.065
0.08?
0.057
0.0
0.04?
0.074
0.178
0.275
0.227
1.877
1.447
1.042
0.487
0.634
0.433
0.252
0.328
0.549
1.371
2.076
1.722
4
2
4
18
13
16
5
5
2
7
12
9
4
2
4
18
13
16
5
5
2
7
12
9
4
2
4
18
13
16
11
5
2
7
12
9
FLOW DAY
FLOW DAY
FLOW
0.368
0.453
0.173
0.074
0.076
0.105
0.0
0.0
0.0
0.130
0.940
0.297
0.193
0.232
0.091
0.040
0.040
0.057
0.0
0.0
0.0
0.071
0.501
0.159
1.453
1.764
0.691
0.294
0.311
0.419
0.167
0.244
0.002
0.530
3.794
1.195
11
25
23
11
25
23
25
23
0.0
0.255
0.643
0.0
0.136
0.343
1.022
2.594
-------
APPENDIX C
PHYSICAL AND CHEMICAL DATA
-------
STORET RETRIEVAL DATE 76/07/22
011501
33 28 42.0 086 36 13.0 3
LAKE PURDY
01073 ALABAMA
033692
DATE
FROM
TO
73/03/19
73/08/30
73/11/02
DATE
FROM
TO
73/03/19
73/OB/30
73/11/02
TIME DEPTH
OF
DAY FEET
13 40 0000
13 40 OOOS
13 40 0011
09 20 0000
09 20 0005
09 20 0013
09 20 0000
09 20 0005
TIME DEPTH
OF
DAY FEET
13 40 0000
13 40 0005
13 40 0011
09 20 0000
09 20 0005
09 20 0013
09 20 0000
09 20 0005
00010
WATER
TEMP
CENT
18.1
18.2
17.6
29.2
28.6
27.1
17.8
17.7
00665
PHOS-TOT
MG/L P
0.096
0.101
0.102
0.049
0.059
0.060
0.082
0.056
00300
00
MG/L
8.8
8.6
6.6
1.2
9.6
32217
CHLRPHYL
A
UG/L
5.1
15.5
25.5
00077 00094
TRANSP CNOUCTVY
SECCHI FIELD
INCHES MICROMHO
36 235
230
230
35 156
160
215
60 176
176
11EPALES 2111202
0015 FEET DEPTH CLASS 00
00400 00410 00610 00625
PH
SU
8.30
8.40
8.30
8.60
8.20
7.80
8.70
7.10
T ALK
CAC03
MG/L
99
100
99
63
66
80
94
39
NH3-N
TOTAL
MG/L
0.110
0.060
0.070
0.240
0.230
0.330
0.040
0.070
TOT
N
KJEL
MG/L
0
0
0
1
1
0
1
0
.800
.400
.400
.900
.300
.900
.000
.500
00630
N02&N03
N-TOTAL
MG/L
0.220
0.120
0.140
0.190
0.140
0.110
0.030
0.060
00671
PHOS-OIS
ORTHO
MG/L P
0.060
0.059
0.060
0.014
0.012
0.014
0.016
0.016
-------
STORE! RETRIEVAL DATE 76/07/22
011502
33 27 32.0 086 39 57.0 3
LAKE PUROY
01117 ALABAMA
033692
11EPALES 2111202
0049 FEET DEPTH CLASS 00
00010
DATE
FROM
TO
73/03/19
73/08/30
73/11/02
TIME DEPTH
OF
DAY
14
14
14
14
14
14
14
09
09
09
09
09
09
09
09
09
09
09
09
FEET
10
10
10
10
10
10
10
45
45
45
45
45
45
30
30
30
30
30
30
0000
0006
0012
0018
0025
0035
0045
0000
0005
0015
0025
0035
0040
0000
0005
0010
0015
0020
0028
WATER
TEMP
CENT
18
17
16
11
10
10
10
30
29
26
24
20
17
18
18
18
18
18
17
.4
.2
.4
.2
.5
.2
.0
.4
.2
.6
.6
.5
.7
.5
.6
.5
.5
.5
.7
00300
DO
MG/L
10.4
9.5
8.7
7.4
4.6
4.4
3.1
0.0
0.0
0.0
0.4
8.2
8.0
7.8
7.6
7.4
00077
TRANSP
SECCHI
INCHES
120
38
60
00094
CNOUCTVY
FIELD
MICROMHO
210
205
210
230
230
240
240
163
166
248
263
252
223
179
178
178
178
178
180
00400
PH
SU
8.80
8.80
8.70
8.20
8.00
7.80
7.70
9.00
8.30
7.70
7.50
7.40
7.40
8.40
8.40
8.40
8.30
8.30
8.20
00410
T ALK
CAC03
MG/L
101
101
102
107
107
108
108
65
71
103
114
128
130
93
92
94
95
96
99
00610
NH3-N
TOTAL
MG/L
0.050
0.040
0.040
0.050
0.060
0.070
0.080
0.200
0.130
0.310
0.560
1.610
1.460
0.030
0.030
0.030
0.040
0.040
0.070
00625
TOT KJEL
N
MG/L
1.000
0.200
0.200
0.200
0.200K
0.200
0.300
1.600
0.800
0.800
0.900
2.400
2.100
0.800
0.700
0.700
0.800
0.600
0.600
00630
N02&N03
N-TOTAL
MG/L
0.030
0.030
0.030
0.080
0.110
0.150
0.150
0.180
0.070
0.130
0.090
0.070
0.050
0.030
0.030
0.030
0.030
0.030
0.040
00671
PHOS-DIS
ORTHO
MG/L P
0.012
0.013
0.014
0.014
0.016
0.025
0.026
0.009
0.022
0.026
0.051
0.069
0.032
0.009
0.012
0.009
0.007
0.011
0.013
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/C7/22
DATE
FROiM
TO
73/03/19
73/OB/30
73/U/O?
00665 32217
TIME DEPTH PHOS-TOT CHLRPHYL
OF A
DAY FEET
14
1<»
la
14
14
14
14
09
09
09
09
09
09
09
09
09
09
09
09
10
10
10
10
10
10
10
45
45
45
45
45
45
30
30
30
30
30
30
0000
0006
0012
0018
0025
0035
0045
0000
0005
0015
0025
0035
0040
0000
0005
0010
0015
0020
0028
MG/L P
0.049
0.047
0.032
0.029
0.035
0.050
0.046
0.032
0.02b
0.052
0.110
0.279
0.141
0.060
0.057
0.059
U.048
0.049
0.059
UG/L
5.2
11.9
23.4
011502
33 27 32.0 086 39 57.0 3
LAKE PUROY
01117 ALABAMA
033692
11EPALES 2111202
0049 FEET DEPTH CLASS 00
-------
STORE! RETRIEVAL DATE 76/07/22
011503
33 27 25.0 086 39 24.0
LAKE PURDY
01117 ALABAMA
033692
DATE
FROM
TO
73/03/19
73/08/30
73/11/02
DATE
FROM
TO
73/03/19
73/08/30
73/11/02
TIME DEPTH
OF
DAY
15
15
15
10
10
10
FEET
15 0000
15 0006
15 0012
15 0000
15 0006
10 0000
TIME DEPTH
OF
DAY
15
15
15
10
10
10
FEET
15 0000
15 0006
15 0012
15 0000
15 0006
10 0000
00010
WATER
TEMP
CENT
17.5
17.2
15.9
30.4
28.4
15.5
00665
PHOS-TOT
MG/L P
0.036
0.040
0.040
0.033
0.034
0.035
00300
DO
MG/L
7.
8.
7.
1.
8.
32217
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
9
8
8
2
8
108 205
215
195
44 162
186
58 180
11EPALES 2111202
0017 FEET DEPTH CLASS 00
00400 00410 00610 00625 00630 00671
PH T ALK NH3-N TOT KJEL N02&N03 PHOS-OIS
CAC03 TOTAL N N-TOTAL ORTHO
SU
8.60
7.50
8.30
8.90
8.20
• 8.20
MG/L MG/L
94 0.050
95 0.030
89 0.040
58 0.200
72 0.200
108 0.040
MG/L
0.400
0.200K
0.200
1.500
0.900
0.600
MG/L
0.040
0.040
0.050
0.140
0.110
0.050
MG/L P
0.014
0.014
0.013
0.014
0.013
0.006
CHLRPHYL
A
UG/L
2.
14.
1C.
8
3
7
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
APPENDIX D
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 76/07/22
0115A1 LS0115A1
33 ?7 30.0 086 40 30.0 4
LITTLE CAMAdA RIVER
01 7.5 CAHABA HTS
0/LAKE PURDY 03J692
XING RD LEADIN TO 0AM .25 MI BELO DAM
11EPALE5 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/03/04
73/04/02
73/05/0^
73/06/1H
73/07/13
73/08/16
73/09/05
73/10/05
73/11/02
73/12/07
7^/01/12
74/01/25
74/02/09
74/02/23
00630 00625
TIME DEPTH N026.N03 TOT KJEL
OF N-TOTAL N
DAY FEET
06
14
17
09
12
17
09
13
14
14
10
14
11
11
?0
40
30
50
55
45
45
00
30
45
15
55
14
30
MG/L
0
0
0
0
0
0
0
0
0
0
0
u
0
0
.100
.078
.147
.176
.189
.160
.086
.095
.070
.192
.232
.216
.152
.084
MG/L
0.
1.
0.
2.
0.
0.
1.
1.
0.
0.
0.
0.
0.
0.
780
400
640
940
580
630
050
200
750
400
400
300
200
300
00610 OC671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
023
080
120
320
250
460
810
520
210
040
048
044
020
015
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
.022
.028
.044
.072
.078
.068
.099
.060
.016
.040
.036
.025
.020
MG/L P
0.050
0.050
0.060
0.100
0.115
0.155
0.145
0.150
0.060
0.016
0.070
0.065
0.045
0.045
-------
STORE! RETRIEVAL DATE 76/07/22
011bA2 LS011542
33 30 00.0 086 37 00.0 4
LITTLE CAHA8A RIVE*
01 7.5 VANDIVER
I/LAKE PUKUY 033692
AlNli OF RD HEADING NW OFF CO H*V 27
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/03/04
73/04/02
73/05/04
73/06/18
73/07/13
73/08/16
73/09/05
73/10/OS
73/11/02
73/12/07
74/01/12
74/01/25
74/02/09
74/02/23
00630 00625
TIME DEPTH N02^N03 TOT KJEL
OF N- TOTAL N
DAY FEET
09
15
18
11
13
18
09
13
15
14
09
14
10
10
00
28
00
30
20
10
00
30
00
20
45
30
?0
SO
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.300
.336
.470
.550
.630
.740
.670
.480
.500
.540
.320
.480
.440
.368
MG/L
1.
1.
0.
1.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
760
320
940
260
92C
580
580
460
350
800
300
400
200
300
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
P.
0.
0.
0.
0.
160
071
132
130
220
176
231
140
078
200
036
062
065
060
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
140
048
210
190
300
450
470
300
352
062
118
0.080
0.
065
MG/L P
0.250
0.075
0.270
0.260
0.390
0.590
0.525
0.350
0.660
0.410
0.115
0.190
0.130
0.120
-------
STORET RETRIEVAL DATE 76/07/22
Ollbrtl LS0115B1
33 27 00.0 086 39 00.0 4
cox CKEEK
01 7.5 CAHAdA HTS
T/LAKE PUROY 033692
BANK FROM Hi) ESE OFF rlirfY 27.3 COX CK BKD
11EPALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/03/04
73/04/02
73/05/0<»
73/06/18
73/5)7/13
73/08/16
73/09/Ob
73/10/05
73/12/07
7^/01/12
74/01/25
74/02/03
74/02/23
00630 00625
TIMF DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
08
15
17
11
12
18
09
13
14
09
14
10
11
45
05
50
SO
25
10
?5
15
30
50
40
44
05
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
.030
.060
.050
.044
.089
.011
.011
.010K
.060
.136
.040
.044
.060
MG/L
1.
4.
1.
1.
0.
3.
0.
0.
0.
0.
0.
0.
0.
000
600
050
800
630
700
500
780
200
100
100
100K
100K
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
048
110
028
027
054
300
038
040
020
032
016
005
015
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
016
005K
008
036
016
039
015
016
012
016
008
005
010
MG/L P
0.025
0.020
0.020
0.095
0.065
0.215
0.060
0.090
0.020
0.016
0.030
0.005
0.015
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOREF RETRIEVAL DATE 76/07/22
OllbCl LS0115C1
33 ?6 30.0 096 40 00.0 4
UNNAMED CREEK
01 7.b CAHAbA HTS
T/LAKE PURDlT • 033642
XING RO TO QAM SITE HEADINGNW OFF HrtY 27
HE^ALES 2111204
0000 FEET DEPTH CLASS 00
DATE
FROM
TO
73/03/04
73/04/02
73/05/04
73/08/16
74/01/12
74/01/25
74/02/09
74/02/23
TIME DEPTH
OF
DAY FEET
08 35
14 30
17 40
18 00
10 00
14 45
10 58
11 15
00630
N02&.N03
N-TOTAL
M6/L
C.010K
0.010K
0.063
0.115
0.032
0.032
v.003
0.012
00625
TOT KJEL
N
MG/L
0.500
0.810
2.100
0.650
0.200
0.1COK
0.100K
0.100K
00610
NH3-N
TOTAL
MG/L
0.024
0.032
0.078
0.315
0.020
0.024
0.010
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.008
0.005K
0.018
0.035
0.008
O.OOSK
0.005
0.005
00665
PHOS-TOT
MG/L P
0.010
O.OOSK
0.135
0.270
0.010
0.015
0.005
0.005
K VALUE KNOdN TO BE
LESS THAN INDICATED
-------
APPENDIX E
PARAMETRIC RANKINGS OF LAKES
SAMPLED BY NES IN 1974
STATE OF ALABAMA
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
0101 8ANKHEAD LAKE
0103 GANTT 3ESERVOI*
0104 GUNTERSVILLE RESERVOIR
0105 HOLT LOCK AND DAM
0106 LAY LAKE
0107 MARTIN LAKE
0104 MITCHELL LAKE
0109 PICKWICK LAKE
0112 WEISS RESERVOIR
0114 WILSON LAKE
0115 LAKE
MEDIAN
TOTAL P
0.029
0.029
0.044
0.018
0.076
0.017
0.053
0.056
0.092
0.053
0.049
MEDIAN
INORG N
0.770
0.300
0.480
0.835
0.390
0.170
0.290
0.535
0.260
0.460
0.170
500-
MEAN SEC
452.667
465.778
461.111
449.417
470.778
435.250
466.000
455.000
478.389
447.714
437.889
MEAN
CrlLORA
4.017
2.144
8.567
2.183
7.056
6.407
6.211
2.450
11.261
7.400
12.711
15-
MIN DO
14.900
14.000
12.200
13.600
13.000
15.000
12.400
11.900
14.900
10.200
15.000
MEDIAN
DISS ORTrlO
0.007
0.008
0.014
0.006
0.032
0.004
0.022
0.035
0.034
0.022
0.014
-------
PERCENT OF LAKES WITH HIGHER VALUES
9)
<«)
5)
6)
d)
1)
3)
0)
15-
MIN i
25 (
40 (
80 (
50 (
60 (
5 (
70 (
90 (
25 (
100 (
5 (
JO
2)
4)
8)
5)
6)
0)
7)
9)
2)
10)
0)
MEDIAN
DISS OKTrtO P
80 (
70 (
55 (
90 (
20 (
100 (
35 (
0 (
10 (
35 (
55 (
8)
7)
5)
9)
2)
10)
3)
0)
1)
3)
5)
INDEX
NO
32U
375
2d5
390
190
450
295
260
125
315
295
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 0107 MARTIN LAKE 450
2 0105 HOLT LOCK AND DAM 390
3 0103 GANTT RESERVOIR 375
4 0101 BANKHEAD LAKE 320
5 Oil'* WILSON LAKE 315
6 0115 LAKE PURDY 295
7 0108 MITCHELL LAKE 295
8 010<» GUNTERSVILLE RESERVOIR 285
9 0109 PICKWICK LAKE 260
10 0106 LAY LAKE 190
11 0112 WEISS RESERVOIR 125
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