U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE NORMAN
CATAWBA, IRADELL LINCOLN,
AND FECKLENBURG COOTIES
NORTH CAROLINA
EPA REGION IV
WORKING PAPER No, 387
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
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REPORT
ON
LAhE NORMAN
CATAWBA, IMDELL, LINCOLN,
AND r€CKLENBURG COUNTIES
NORTH CAROLINA
EPA REGION IV
WORKING PAPER No, 387
WITH THE COOPERATION OF THE
NORTH CAROLINA DEPARTMENT OF NATURAL AND ECONOMIC RESOURCES
AND THE
NORTH CAROLINA NATIONAL GUARD
JUNE, 1975
791
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CONTENTS
Page
Foreword i i
List of North Carolina Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Sumary 5
IV. Nutrient Loadings 11
V. Literature Reviewed 16
VI. Appendices 17
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to 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 [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and 5305{b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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111
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 North Carolina Department
of Natural and Economic Resources for professional involvement
and to the North Carolina National Guard for conducting the
tributary sampling phase of the Survey.
Lewis R. Martin, Director of the Division of Environmental
Management; Darwin L. Coburn, Chief of the Water Quality Section;
and Julian R. Taylor, Supervisor of the Monitoring Program Unit;
provided invaluable lake documentation and counsel during the
Survey, reviewed the preliminary reports, and provided critiques
most useful in the preparation of this working Paper series.
Major General William M. Buck, formerly Adjutant General of
North Carolina, and Project Officer Colonel Arthur J. Bouchard,
who directed the volunteer efforts of the North Carolina National
Guardsmen, are also gratefully acknowledged for their assistance
to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF NORTH CAROLINA
LAKE NAME
Badin
Blewett Falls
Chatuge
Fontana
Hickory
High Rock
Hiwassee
James
John H. Kerr (Nut Bush Creek)
Junaluska
Lookout Shoals
Mountain Island
Norman
Rhodhiss
Santeetlah
Tillery
Waccamaw
Waterville
Wylie
COUNTY
Montgomery, Stanly
Anson, Richmond
Clay, NC; Towns, GA
Graham, Swain
Alexander, Caldwell,
Catawba
Davidson, Rowan
Cherokee
Burke, McDowell
Granville, Vance, Warren,
NC; Halifax, Mecklenburg,
VA
Haywood
Alexander, Catawba, Iredell
Gaston, Mecklenburg
Catawba, Iredell, Lincoln,
Mecklenburg
Burke, Caldwell
Graham
Montgomery, Stanly
Columbus
Haywood
Gaston, Mecklenburg, NC;
York, SC
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3S-45'
Map Location
LAKE NORMAN
® Tributary Sampling Site
X Lake Sampling Site
^ Sewage Treatment Facility
f ? t 1,° 1-5
Huntersville
Mi .
Scale
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LAKE NORMAN
STORE! NO. 3713
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake Norman 1s slightly eutrophic.
It ranked sixth in overall trophic quality when the 16 North
Carolina lakes sampled in 1973 were compared using a combination
of six parameters*. Five of the lakes had less and one had the
same median total phosphorus, one had less and one had the same
median dissolved phosphorus, seven had less median inorganic
nitrogen, nine had less mean chlorophyll a_, and four had greater
Secchi disc transparency.
Survey limnologists noted the absence of emergent vegetation;
however, there was marked depression of hypolimnetic dissolved
oxygen at all sampling stations in July and at four of the five
sampling sites in September.
B. Rate-Limiting Nutrient:
The algal assay results indicate that Lake Norman was limited
by phosphorus at the time the sample was collected. The lake
data substantiate phosphorus limitation; I.e., the inorganic
nitrogen to orthophosphorus ratios were 19 to 1 or greater at
all stations and sampling times.
* See Appendix A.
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C. Nutrient Controllability:
1. Point sources—The phosphorus contribution of known
point sources amounted to 9.1% of the total input to Norman
Lake during the sampling year. The wastewater facilities at
Conover and Cornelius accounted for 3.0% and 2.8% of this
total, respectively. The wastewater facilities at Troutman,
Catawba, and Claremont collectively contributed 3.3% of the
total phosphorus load. Septic tanks serving lakeside dwellings,
campsites, and parks were estimated to have contributed 0.2%
of the total.
The present loading rate of 0.73 g/m2/yr is slightly
less than the rate proposed by Vollenweider (Vollenweider and
Dillon, 1974) as a eutrophic rate (see page 15). A 50% reduc-
tion of the phosphorus contributed by the listed point sources
would lower the loading rate to 0.70 g/m2/yr and should halt
any deterioration that may presently be occurring in the lake.
A 100% reduction of phosphorus at the known point sources would
reduce the loading rate to 0.66 g/m2/yr and would ensure high
water quality in Lake Norman as well as benefit downstream
Mountain Island Lake*.
2. Non-point sources—During the sampling year, the
phosphorus contribution of non-point sources accounted for
* Working Paper No. 386.
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90.7% of the total load. The Catawba River contributed 80.3%,
Lyle Creek contributed 1.7%, and the remaining four tributaries
collectively contributed 2.5% of the total. The ungaged tribu-
taries were estimated to have contributed 3.7%.
The phosphorus export rates of Hicks Creek and Unnamed
Creek F-l appear to be significantly higher than the rates of
the other Lake Norman tributaries (see page 15). The higher
rate of Hicks Creek may have resulted from underestimation of
the phosphorus contributed by the Troutman wastewater treatment
plant, and the higher rate of Unnamed Creek F-l may be due to
urban drainage from Mooresville (1970 population = 8,808).
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphometry :
1. Surface area: 131.57 kilometers2.
2. Mean depth: 10.2 meters.
3. Maximum depth: 33.5 meters.
4. Volume: 1,348 x 106 m3.
5. Mean hydraulic retention time: 239 days (based on outlet flow)
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Nanre area (km2)* (m3/sec)*
Catawba River 3,980.8 63.2
Ball Creek 42.0 0.7
Lyle Creek 183.9 2.6
Buffalo Shoals Creek 54.4 0.7
Hicks Creek 12.9 0.2
Unnamed Creek F-l 12.7 0.2
Minor tributaries &
immediate drainage - 217.8 4.8
Totals 4,504.5 72.4
2. Outlet -
Catawba River 4,636.1** 65.2
C. Precipitation***:
1. Year of sampling: 148.9 centimeters,
2. Mean annual: 119.9 centimeters.
t Table of metric conversions—Appendix B.
tt Park, 1974.
* 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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III. LAKE WATER QUALITY SUMMARY
Lake Norman 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
five 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 to surface) sample was composited from the five stations for
phytoplankton identification and enumeration; and during the first
visit, two 18.9-liter depth-integrated samples were composited for
algal assays. Also each time, a depth-integrated sample was collected
from each of the stations for chlorophyll a_ analysis. The maximum
depths sampled were 33.5 meters at station 1, 25.3 meters at station 2,
21.6 meters at station 3, 14.6 meters at station 4, and 10.4 meters
at station 5.
The lake sampling results are presented in full in Appendix D and
are summarized in the following table.
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OF PHYSICAL Ai'ia CfitMlCAL CrtArtACTtklSTICb HUM LAUt NUHMAN
STOrtU COUt 3713
1ST SAMPLING < 3/29/^3)
1 SITtb
H»*A*tTtK
TtMP (C)
U1SS uXY
P.JEL N (HG/L)
iNOrfl, N IMG/D
TOTAL r\| (Mb/L)
CHLPf'YL A (Ui'i/L)
btCCrtl (MLTtkli)
rtANbt
tl.ti - 14. =i
7.5 - 10.4
bl. - 73.
6.6 - 7.2
10. - 11.
u,P16 - U.079
I'.OOJ - U.Olt
J.^Ot ~ 0.360
O.C4J - O.I SO
9.?0- - 0.7T.I
0.30U - J.4'30
C.^7U - ..99U
4.4 - 9.1
\l , -4 - J , ^
MtAN
12.2
V.i
5b.
7.1
lu.
J.C-1
j.uOH
0.291
0.017
U.26S
0.36^
U.b5b
b.rt
O.i
MtUlAN
12.4
9.4
bb.
7.1
10.
0.039
0.007
t.2dO
0.070
0.200
b.3/u
O.brt
7.0
0.5
2^u SAMPLING ( 7/il/?3)
D SITtb
KANGt
13.1
1.2
3^.
6.2
14.
a. 009
0.002
O.ObO
O.ObO
0.200
0.130
0.3bO
2.4
1.3
- 31.1
- 9.2
61.
a. 9
e-b.
- 0.04b
- o.ooa
- 0.4BO
- 0.240
- 1.900
- o.sso
- 2.330
4.4
2. f
MtAN
22. B
4.0
46.
6.9
20.
0.017
0.003
0.244
0.099
0.500
0.343
0.744
3.6
2.0
MtUlAN
23.0
2.6
46.
6.4
21.
0.013
0.003
0.210
0.090
0.300
0.360
0.630
3.9
1.0
3Ku SAMPLING < 9/is/?3)
kflNGt
14.1
0.2
SI.
6.1
11.
0.004
0.003
0.020
0.020
0.200
0.060
0.2BO
2.U
0.9
- 30.2
H.O
68.
7.2
22,
- 0.032
- 0.010
- 0.220
- 0.200
- 1.000
- 0.370
- 1.040
- 13. b
l.B
MLAN
24.9
4.1
57.
6.4
16.
0.011
0.006
0.1U2
O.Odl
0.4B3
0.1B3
O.SSb
7.0
1.6
ME01AN
2h.l
5.0
58.
6. J
16.
0.010
O.OOb
O.lls
0.060
0.400
O.|7b>
0.530
•5.b
1.7
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
03/29/73
07/11/73
09/19/73
Dominant
Genera
1. Melosira
2. Flagellates
3. Navicula
4. Scenedesmus
5- Treubaria
Other genera
Total
1. Flagellates
2. Melosira
3. Cyclotella
4. Perfdinium
5. Pennate diatoms
Other genera
Total
1. Dactyloccops1s
2. Flagellates
3. Synedra
4. Peridinium
5. Cyclotella
Other genera
Algal units
per ml
2,370
1,268
412
191
118
118
443
2,550
854
438
188
188
66
433
Total
2,167
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2. Chlorophyll a_ -
Sampling
Date
03/29/73
07/11/73
09/19/73
Station
Number
01
02
03
04
05
01
02
03
04
05
01
02
03
04
05
Chlorophyll a_
(yg/1)
9.1
8.4
7.8
4.4
4.5
4.4
3.9
4.2
2.4
3.1
7.8
5.6
5.2
2.8
13.5
C. Limiting Nutrient Study:
1. Stations 1,2, and 3 -
a. Autoclaved, filtered, and nutrient spiked
Spike (mg/1)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
Ortho P
Cone. (mg/ll
0.008
0.058
0.058
0.008
Inorganic N
0.296
0.296
1.296
1.296
Maximum yield
(mg/1-dry wt.)
0.1
6.7
23.2
0.1
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b. Filtered and nutrient spiked -
Spike (mg/1)
Ortho P
Cone, (mg/1)
Inorganic N
Cone, (mg/1)
Maximum yield
(mg/1-dry wt.)
Control
0.050 P
0.050 P + 1.0
1.0 N
2. Stations 4 and
a. Autoclaved,
Spike (mg/1)
Control
0.050 P
0.050 P + 1.0
1.0 N
0.010
0.060
N 0.060
0.010
5 -
filtered, and
Ortho P
Cone, (mg/1)
0.016
0.066
N 0.066
0.016
0.366
0.366
1.366
1.366
nutrient spiked -
Inorganic N
Cone, (mg/1)
0.352
0.352
1.352
1.352
0.4
7.4
18.3
0.4
Maximum yield
(mg/1 -dry wt.)
2.3
7.3
27.3
2.0
b. Filtered and nutrient spiked -
Spike frng/1)
Control
0.050 P
0.050 P + 1.0
1.0 N
3. Discussion -
The control
Ortho P
Cone, (mg/1)
0.015
0.065
N 0.065
0.015
yields of the
Inorganic N
Cone, (mg/1)
0.365
0.365
1.365
1.365
Maximum yield
(mg/1 -dry wt. }
2.3
8.0
23.9
2.1
assay alga, Selenastrum capri-
cornutum, indicate that the potential primary productivity
of Lake Norman was moderate at stations 1, 2, and 3 and
moderately high at stations 4 and 5 at the time the samples
were collected. Also, a significant Increase in yield 1n
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10
all assays when orthophosphorus was added indicates that
the lake was limited by phosphorus at that time. Note
that in all assays the addition of only nitrogen resulted
in a yield no greater than the control yield.
The differences shown by the control yields at stations
1, 2, and 3 (central and south end of lake) and at stations
4 and 5 (north end of lake) indicate the differences in
availability of nutrients for primary production. Note
that orthophosphorus concentrations were 1% to 2 times
greater at stations 4 and 5 than at stations 1, 2, and 3.
The lake data substantiate phosphorus limitation; i.e.,
the mean inorganic nitrogen to orthophosphorus ratios were
19 to 1 or greater at all stations and sampling times, and
phosphorus limitation would be expected.
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n
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the North Carolina
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 col-
lected. 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 North Carolina District Office of the U.S. Geological Survey for
the tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were deter-
mined 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 multiply-
ing the means by the ZZ area in km2.
The operators of the Conover, Troutman, and Cornelius wastewater
treatment plants provided monthly effluent samples and corresponding
flow data. However, the operators of the Claremont and Catawba
* See Working Paper No. 175.
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12
wastewater treatment plants did not participate in the sampling
program, and nutrient loads were estimated at 1.134 P and 3.401
N/capita/year.
A. Waste Sources:
1. Known municipal -
Name
Conover*
Troutman*
Cornelius*
Catawba**
Claremont -
N. Plant**
S. Plant**
Pop.
Served
2,606
800
1,295
1,100
} 788
Treatment
act. sludge
act. sludge
trickling
f i 1 ter
primary
clarifier
extended aer.
Mean Flow
(m'/d)
1,158.2
246.0
719.2
416.4***
298.3***
298.3***
Receiving
Water
Lyle Creek
Big Branch
Unnamed Creek/
Lake Norman
Lyle Creek
Lyle Creek
Coulter Branch/
Lyle Creek
2. Known industrial - None
* Treatment plant questionnaires.
** Anonymous, 1971.
*** Estimated at 0.3785 m3/capita/day.
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13
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Catawba River 77,020 80.3
Ball Creek 785 0.8
Lyle Creek 1,670 1.7
Buffalo Shoals Creek 745 0.8
Hicks Creek 410 0.4
Unnamed Creek F-l 500 0.5
b. Minor tributaries & immediate
drainage (non-point load) - 3,595 3.7
c. Known municipal STP's -
Conover 2,890 3.0
Troutman 1,030 1.1
Cornelius 2,710 2.8
Catawba 1,245 1.3
Claremont-N. Plant 445 0.5
Claremont-S. Plant 445 0.5
d. Septic tanks* - 200 0.2
e. Known industrial - None
f. Direct precipitation** - 2.300 2.4
Total 95,990 100.0
2. Outputs -
Lake outlet - Catawba River 30,965
3. Net annual P accumulation - 65,025 kg.
* Estimate based on 600 lakeside dwellings, 15 campsites, and 1 park; see
Working Paper No. 175.
** See Working Paper No. 175.
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14
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Catawba River 1,377,940 77.3
Ball Creek 30,300 1.7
Lyle Creek 64,215 3.6
Buffalo Shoals Creek 16,630 0.9
Hicks Creek 3,355 0.2
Unnamed Creek F-l 5,080 0.3
b. Minor tributaries & immediate
drainage (non-point load) - 111,840 6.3
c. Known municipal STP's -
Conover 5,845 0.3
Troutman 1,880 0.1
Cornelius 9,615 0.5
Catawba 3,740 0.2
Claremont-N. Plant 1,340 0.1
Claremont-S. Plant 1,340 0.1
d. Septic tanks* - 7,495 0.4
e. Known industrial - None
f. Direct precipitation** - 142,045 8.0
Total 1,782,660 100.0
2. Outputs -
Lake outlet - Catawba River 1,617,200
3. Net annual N accumulation - 165,460 kg.
* Estimate based on 600 lakeside dwellings, 15 campsites, and 1 park; see
Working Paper No. 175.
** See Working Paper No. 175.
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15
D. Mean Annual Non-point Nutrient Export by Subdralnage Area:
Tributary kg P/km2/yr kg N/km2/yr
Catawba R1ver 19 346
Ball Creek 19 721
Lyle Creek ' 9 349
Buffalo Shoals Creek 14 306
Hicks Creek 32 260
Unnamed Creek F-l 39 400
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenwelder (Vollen-
weider and Dillon, 1974). Essentially, his "dangerous" rate
is the rate at which the receiving water would become eutrophic
or remain eutrophic; his "permissible" rate 1s that which would
result in the receiving water remaining ollgotrophlc or becoming
oligotrophic if morphometry permitted. A mesotrophic rate 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/m2/yr 0.73 0.49 13.5 1.3
Vollenweider loading rates for phosphorus
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake Norman:
"Dangerous" (eutrophic rate) 0.76
"Permissible" (oligotrophic rate) 0.38
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16
V. LITERATURE REVIEWED
Anonymous, 1971. Inventory of municipal waste facilities. EPA
Publ. OWP-1, vol. 4. Washington, DC.
Park, David, 1974. Personal communication (lake morphometry).
NC Dept. of Nat. & Econ. Resources, Raleigh.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Nat!. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
Weiss, Charles M., 1972. A proposal to the Water Resources Research
Institute of the University of North Carolina. The trophic state
of North Carolina lakes, covering the period from July 1, 1972,
to June 30, 1973. U. of North Carolina, Chapel Hill.
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17
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
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LA.<£S RANKED 3Y IKD£X NG5*
RANK LAKE CODE LAKE NAME
1 3719
2 3716
3 3711
4 3707
5 370^
6 3713
7 3708
3 37iO
9 3715
10 370b
11 3717
12 3709
13 3702
14 3718
15 37C1
16 3706
LAKE wACCAHAw
SANTEELAH LAKE
MOUNTAIN ISLAND LAKE
HIl.'ASSEE LAKE
FONTANA LAKE
LAKE NORMAN
LAKE JAI'lES
LOOKOUT SHOALS
RHODHISS LAKE
LAKE HICKORY
LAKE TILLERY
LAKE JUNALUSKA
3LEWETT FALLS LAKE
WATERVILLE RESERVOIR
BAOIN LAKE
HIGH ROCK LAKE
INDEX NO
534
446
419
414
392
346
334
327
296
283
246
220
200
140
124
76
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LAKE.DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
3701 6ADIN LAKE
3702 BLEWETT FALLS LAKE
370* FONTANA LAKE
3705 LAKE HICKORY
3706 HIGH ROCK LAKE
3707 HIWASSEE LAKE
3708 LAKE JAMES
3709 LAKE JUNALUSKA
3710 LOOKOUT SHOALS
3711 MOUNTAIN ISLAND LAKE
3713 LAKE NORMAN
3715 RHOQHISS LAKE
3716 SANTEELAH LAKE
3717 LAKE TILLERY
3718 WATERVILLE RESERVOIR
3719 LAKE WACCAMAW
MEDIAN
TOTAL P
0.042
0.090
0.011
0.047
0.090
0.015
0.020
0.031
0.026
0*018
0.019
0*061
0.011
0,040
0.103
o.oia
MEDIAN
IN03G N
0.680
0.655
0.550
0.320
0.580
0.240
0.160
0.560
0.370
0.270
0.330
0.305
0.160
0.470
0.860
0.120
500-
MEAN SEC
466.750
476.889
392.650
461.000
477.454
.420.555
428.866
462.000
459.167
462.000
446.667
462.111
366.400
466.600
468.333
455.667
MEAN
CHLORA
7.190
4.167
3.438
7.275
14.283
5.678
7.660
7.233
4.200
5.580
5.807
3.578
5.360
6.827
3.817
3.583
15-
MIN DO
14.900
10.800
14.900
13.400
14.800
14.200
14.800
14.200
13.800
12.800
14.800
13.600
14.800
13.600
14.400
9.800
MEDL
DISS OUT!
0.012
0.034
0.007
0.008
0.017
0.007
0.006
0.009
0.008
0.005
0.005
0.019
0.006
0.008
0.041
0.004
-------
or LAKES WITH HIGHER VALUES (NUMBED or LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
3701 BAOT-J LAKE
3702 BLE..-JETT FALLS LAKE
3704 FONTANA LAKE
3705 LAKE K'iCKORV
3706 HIGH KOCK LAKE
3707 HIWASSEE LAKE
3708 LAKE JAME5
37C9 LAKE JUNALUSKA
3710 LOOKOUT ShOALS
3711 MOUNTAIN ISLAND LAKE
3713 LAKE NORMAN
3715 RHGOriISS LAKE
3716 SANTEELAH LAKE
3717 LAKE TILLESY
3718 WATcav/ILLE RESERVOIR
3719 LAKE WACCAMAW
MEDIAN
TOTAL P
33
7
100
27
13
87
60
47
53
73
67
20
93
40
0
80
( 5)
( 1)
< 15)
( 4)
( 2)
( 13)
( 9)
< 7)
( a)
( 11)
( 10)
t 3)
( 14)
( 6)
( 0)
( 12)
MEDIAN
iNOkG N
7
13
33
60
20
<30
67
27
47
73
53
67
93
40
0
100
( 1)
( 2)
( 5)
I 9)
< 3)
I 12)
( 13)
{ 4)
( 7)
( 11)
( 8)
t 10)
( 14)
( 6)
< 0)
( 15)
500-
MEAN
HEAN SEC
27 <
7 (
93 <
53 (
0 (
07 {
60 (
43 (
60 (
43 <
73 t
33 <
100 (
13 (
20 (
67 (
4)
1)
14)
3)
0>
13)
12)
6)
9)
6)
11)
5)
15)
2)
3)
10)
CriLORA
27
73
100
13
0
47
7
20
67
53
40
93
60
33
80
67
( 4)
( 11)
t 15)
< 2)
( 0)
( 7)
1 1)
( 3)
( 10)
< 8)
( 6)
t 14)
( 9)
( 5)
< 12)
< 13)
•5-
MEDIAN
MIN 00
3 <
93 <
3 (
80 (
23 I
SO (
23 (
50 (
60 (
87 (
23 (
70 (
23 (
70 (
40 (
130 (
.0)
14)
0)
12)
2>
7)
2)
7)
9)
13)
2)
10)
2)
1C)
61
15)
OISS OriTMO P
27 (
7 (
63 (
5C (
20 (
63 (
77 1
33 1
40 (
90 (
90 I
13 i
77 '
50 '
0
100
4)
1)
9)
7)
3)
9)
: ID
: 5)
; 6>
; 13)
I 13)
( 2)
t 11)
I 7)
( 0)
( 15)
INDEX
NO
12-+
200
392
263
76
414
334
220
327
419
346
296
446
246
140
534
-------
APPENDIX B
CONVERSIONS 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
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR NORTH CAROLINA
10/21/75
LAKE CODE 3713
LAKE NORMAN
TOTAL DRAINAGE AREA OF LAKE(SO MI) 1790.00
SUB-DRAINAGE
TRIBUTARY AREAtsa MI>
JAN
FEB
MAR
APR
HAY
NORMALIZED FLOWS(CFS)
JUN JUL AUG
SEP
OCT
NOV
DEC
MEAN
3713A1
3713A2
371381
3713C1
371301
3713E1
3713F1
3713ZZ
1790.00
1537.00
16.20
71.00
21.00
5.00
4.90
135.00
2910.00
2460.00
26.00
115.00
24.00
6.20
7.60
194.00
2100.00
2600.00
37.00
146.00
34.00
8.20
8.10
2S6.00
1920.00
2850.00
38.00
148.00
36.00
8.50
8.30
270.00
1860.00
2210.00
35.00
120.00
40.00
8.20
6.70
246.00
2170.00
2140.00
25.00
84.00
24.00
5.20
4.60
158.00
2470.00
2060.00
22.00
75.00
21.00
4.60
4.20
146.00
2140.00
1810.00
17.00
66.00
17.00
3.90
3.60
119.00
2110.00
2000.00
20.00
57.00
15.00
3.50
3.10
115.00
2460.00
1810.00
20.00
70.00
16.00
3. HO
3.80
120.00
2500.00
2250,00
21.00
70.00
17.00
4.00
3.80
131.00
2780.00 2200.00
2120.00
19.00
74.00
16.00
4.00
4.10
121.00
2490.00
24.00
95.00
22.00
6.10
6.70
177.00
2302.33
2232.33
25.42
92.99
23.42
5.50
5.37
170.53
SUMMARY
TOTAL DRAINAGE AREA OF LAKE
SUM OF SUB-DRAINAGE AREAS
MEAN MONTHLY FLOWS AND DAILY FLOWS(CFS)
1790.00
1790.10
TOTAL FLOW IN
TOTAL FLOW OUT
TRIBUTARY MONTH YEAR
3713A1
MEAN FLOW DAY
FLOW DAY
FLOW UAY
FLOW
3713A2
3
4
5
6
7
e
9
10
11
12
1
2
3
4
5
6
7
B
9
10
11
12
I
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
6300.00
6390.00
5270.00
4270.00
3630.00
3690.00
3340.00
1720.00
2190.00
2560.00
3520.00
3980.00
6040.00
5480.00
5250.00
3700.00
2650.00
3300.00
2270.00
2000.00
1560.00
3260.00
4300.00
3600.00
25
15
19
23
24
18
15
21
17
15
6
3
25
IS
19
23
24
IS
15
21
17
15
6
3
4280.00
1160.00
128.00
128.00
1320.00
128.00
575.00
126.00
1150.00
6340.00
1670.00 19
2410.00 16
5050.00
2440.00
500.00
2230.00
2300.00
3080.00
3260.00
175.00
1350.00
6450.00
1870.00 19
2650.00 16
1090.00
5080.00
1200.00
4570.00
30691.76
27620.00
-------
TRIBUTARY FLOW INFORMATION FOR NORTH CAROLINA
U/21/TS
LAKE CODE 3713
LAKE NORMAN
MEAN MONTHLY fLOUS AND DAILY FLOMSICFS)
TRIBUTARY MONTH TEAR
3713BI
3713C1
371301
3713EI
3 73
4 73
5 73
6 73
T 73
8 73
9 73
10 73
11 73
12 73
1 74
2 7*
3 73
4 73
5 73
6 73
7 73
8 73
9 73
10 73
11 73
12 73
1 T4
* 74
3 73
4 73
5 73
6 73
7 73
S 73
9 73
10 73
11 73
12 73
I 74
2 74
3 73
4 73
5 73
6 73
7 73
8 73
9 73
10 73
11 73
12 73
1 74
2 74
MEAN FLOW DAY
76.00
62.00
56.00
35.00
24.00
21.00
15.00
17.00
14.00
42.00
50.00
40.00
230.00
260.00
165.00
115.00
70.00
75.00
50.00
55.00
45.00
ISO. 00
iso. oo
125.00
68.00
78.00
54.00
34.00
23.00
20.00
15.00
16.00
16.00
45.00
40.00
37.00
16.00
19.00
14.00
8.50
S.60
S.SO
4.00
4.20
3.90
10.00
12.00
10.00
25
IS
19
23
24
IB
15
21
17
16
6
3
25
IS
19
23
24
18
15
21
17
1*
6
3
25
IS
19
23
24
18
IS
21
17
16
6
3
25
IS
19
23
24
18
15
21
17
16
6
3
FLOW DAY
5*. »0
43.00
34.00
36.00
24.00
22.00
21.00
12.00
12.00
22.00
37.00 19
45.00 16
170.00
135.00
115.00
115.00
75.00
154.00
65.00
4S.OO
45.00
73.00
125.00 19
135.00 16
49.00
40.00
34.00
M.OO
22.00
•0.00
19.00
13.00
13.00
21.00
37.00 19
40.00 16
13.00
11.00
•.00
9.80
5.40
7.50
5.40
3.BO
3.70
5.70
10.00 19
15.00 16
FLOW DAY
FLO*
21.00
35.00
70.00
100.00
21.00
30.00
5.50
9.00
-------
TRIBUTARY FLOW INFORMATION FOR NOKTH CAROLINA
10/21/75
LAKE CODE 3713
LAKE NORMAN
MEAN MONTHLY FLOWS AND DAILY FLOWS(CFS)
TRI6UTAWY
3713F1
3713ZZ
MONTH
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
7^
MEAN FLOW DAY
19.00
17.00
14.00
8.30
5.50
5.40
3.90
4. 10
3.80
9.90
12.00
10.00
430.00
470.00
300.00
200.00
100.CO
90.00
95.00
95.00
80.00
270.00
350.00
280.00
25
15
19
23
24
18
15
21
17
16
6
3
FLOW DAY
13.00
10.00
7.80
8.00
S.30
5.30
5.20
3.70
3.50
5.60
9.60 19
14.00 16
FLOW UAY
FLOW
5.30
8.80
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORtT RETRIEVAL UAft /5/1U/20
371301
35 26 20.0 080 57 00.0
LAKE NORMAN
37119 NORTH CAROLINA
oooio
0ATE TIME DEPTH WATER
FROM OF TtMP
TO DAY FEET
73/03/2S* 10
10
10
10
10
to
10
10
10
73/07/11 13
13
13
13
13
1J
13
13
13
13
13
13
13
13
73/J9/19 09
09
09
09
09
09
10
10
10
10
10
10
10
10
10
40
40
40
40
40
40
40
40
40
40
40
40
tO
40
20
20
20
?0
?0
?0
0000
0006
0015
0025
0040
0060
0075
0090
0107
0000
0005
0012
0015
0021
0030
U040
0050
0060
0070
0080
0090
G100
0110
ooou
0015
0035
OUbO
0080
0100
CENT
12.
12.
12.
12.
11.
10.
9.
9.
9.
29.
29.
29.
28.
26.
22.
20.
IB.
16.
14.
14.
13.
13.
13.
2b.
26.
?b.
2o.
Ib.
14.
5
b
5
t
M
U
y
6
b
b
7
b
9
3
i
7
3
1
7
1
9
4
1
4
4
3
tl
«
1
00300
DO
MG/L
10
10
10
U
10
9
9
9
9
B
8
8
5
2
1
1
2
2
3
-j.
?
1
7
7
7
0
y
0
•
*
•
*
»
•
•
*
*
*
•
•
*
•
•
•
*
*
•
^
.
*
•
*
•
•
m
•
4
<4
a
0
0
4
U
0
2
a
5
7
b
3
7
7
5
7
5
4
4
b
2
2
0
2
it
4
11EHALES
00300
DO
MG/L
10.4
10. <*
10. a
u.o
10.0
9.4
9.U
9.0
9.2
B.fi
8.5
8.7
5. to
2.3
1.7
1.7
2.5
2.7
3.5
H.4
?.4
l.b
7.2
7.2
7.0
0.2
0.4
0.4
00077 00094
TRANSP CNOUCTVY
SECCHI FIELSJ
IIMCHtS M1CSOMHO
32 55
55
SO
55
58
5ft
60
60
60
106 61
57
56
50
48
41
41
41
40
40
39
40
40
42
72 51
54
53
52
3
00400
HH
SU
7.20
7.20
7.20
7.00
7.10
7. JO
7.00
7.10
7.10
8.60
7.70
6.30
6.30
6.30
6.30
6.70
6.80
6.50
6.20
6.10
6.20
00410
T ALK
CAC03
MG/L
10K
10K
10K
10
11
10
10
11
10
22
19
19
21
22
24
17
16
16
19
ai
22
2111202
0111
00610
NH3-N
TOTAL
MG/L
0.050
0.040
0.050
0.040
0.050
0.040
0.050
0.050
0.050
0.090
0.070
0.090
0.080
0.080
0.110
0.040
0.020
0.040
0.100
o.iao
0.180
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.200
0.200
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.600
0.300
0.300
0.200K
1.900
0.300
1.000
0.400
0.400
0.300
0.600
0.600
00630
NU2&N03
N-TOTAL
MG/L
0.280
0.270
0.280
0.270
0.280
0.280
0.310
0.320
0.320
0.080
0.060
0.170
0.360
0.430
0.480
0.040
0.040
0.040
0.140
0.120
0.190
00671
PnOS-OIS
OHTHO
MG/L P
0.003
0.004
0.004
0.003
0.003
0.005
0.006
0.004
0.005
o.ooe
0.003
0.002
0.003
0.002
0.002
0.007
0.006
0.005
0.003
0.004
0.004
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOKbT RETRIEVAL DATE 75/10/20
DATE
FROM
TO
73/03/29
73/07/11
73/09/19
0066S 32217
TIME DEPTH PMOS-TOT CHLRPHYL
OF A
DAY FEET
10
10
10
10
10
10
10
10
10
13
13
13
13
13
13
J9
U9
U9
09
09
09
10
10
10
10
10
10
10
10
10
40
40
40
40
40
40
20
20
20
20
20
20
0000
0006
0015
0025
0040
0060
0075
0090
0107
0000
0012
0021
0050
0090
0110
0000
0015
0035
0060
0080
0100
MG/L P
0.030
0.031
0.037
0.019
0.019
0.016
0.020
0.026
0.027
C.013
U.010
O.OOS)
0.009
0.012
0.019
u.012
G.011
0.010
0.006
0.028
0.005
UG/L
9.1
4.4
7.8
3M301
35 26 20.0 080 57 00.0
LAKE NORMAN
37119 NORTH CAROLINA
11EPALES
3
2111202
0111 FEET
DEPTH
-------
STOREF RETRIEVAL CATE 75/10/20
371302
35 29 45.0 QUO 56 45.0
LAKE NORMAN
37119 NORTH CAROLINA
DATE
FROM
TO
73/OJ/29
73/07/11
73/09/19
TIME
OF
OAY
11
11
11
11
11
11
11
14
14
14
14
14
14
14
14
14
14
14
10
10
10
10
30
30
30
30
30
30
30
35
35
35
35
35
35
35
35
35
15
35
15
15
15
15
DEPTH
FEET
0000
0006
0015
0025
0045
0065
0083
0000
0005
0012
0015
0020
0030
0040
0050
0060
0070
0075
0000
0015
0030
0051
00010
WATER
TEMP
CENT
12.5
12.5
12.4
12.2
11.1
10.4
9.9
30.1
29.9
29.0
28.2
26.0
23.0
21.1
19.4
16.0
14.6
14.3
26.1
26.1
26.1
23.7
11EPALES
00300
DO
MG/L
10.0
9.8
7.8
9.6
9.6
9.0
9.1
8.6
8.0
7.6
3.9
2.1
1.5
1.4
1.8
1.4
1.2
7.2
6.4
5.0
0.4
00077 00094
TRANSP CNDUCTVY
SECCHl FIELD
INCHES MICROMHO
20 60
60
73
52
58
55
60
96 60
58
55
53
49
42
42
42
41
42
42
72 53
56
51
5fl
3
00400
PH
SU
7.10
7.10
6.90
6. SO
6.60
7.20
7.20
8. 30
7.30
6.40
6.30
6.20
6.50
6.40
6.40
6.2U
00410
T ALK
CAC03
MCi/L
10K
10K
10K
10K
11
10K
10K
22
22
23
24
24
20
12
11
15
211
0087
00610
NH3-N
TOTAL
MG/L
o.oao
0.050
0.060
0.060
0.060
0.050
0.060
0.080
0.080
0.100
0.070
0.110
0.050
0.040
0.040
0.140
1202
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.400
0.300
0.200
0.200K
0.200K
0.200K
0.200K
0.500
0.300
0.300
0.200K
0.200
0.600
0.400
0.400
0.600
00630
N02&N03
N-TOTAL
MG/L
0.340
0.280
0.280
0.280
0.300
0.300
0.330
0.080
0.100
0.200
0.340
0.430
0.070
0.060
0.060
0.020K
00671
PHOS-OIS
ORTHO
MG/L P
0.005
0.005
0.004
0.005
0.007
0.004
0.004
0.003
0.002
0.002
0.002
0.002
0.009
0.006
0.005
0.005
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL OATE 75/10/20
00665 32817
DATE TIME DEPTH PHOS-TOT CrlLHPHYL
FHOM OF A
TO DAY FEET MG/L P UG/L
73/03/29 11 30 0000 0.034
11 30 0006 0.036
11 30 0015 0.035
11 30 0025 0.027
11 30 0045 0.020
11 30 0065 0.021
11 30 0063 0.026
73/07/H 14 35 0000 0.012
14 35 0012 0.009
14 35 0020 0.009
14 35 0050 0.011
14 35 0075 0.017
73/09/19 10 15 0000 0.008
10 15 0015 0.006
10 15 OUJO 0.006
10 15 0051 0.006
H.4
3.9
5.6
371302
35 29 45.0 080 56 45.0
LAKE NORMAN
37119 NOWTH CAROLINA
HEPALES
3
2111202
0087 F£ET
DEPTH
-------
STORET RETRIEVAL DATE 75/10/20
371303
35 31 30.0 080 57 30.0
LAKE NORMAN
37119 NORTH CAROLINA
DATE TIME DEPTH
FHOM OF
TO DAY FEET
73/03/29 14
14
14
14
14
14
14
73/07/11 15
15
15
15
15
15
15
15
15
15
15
15
15
IS
15
73/09/19 10
10
10
10
10
10 0000
10 0006
10 001S
10 0025
10 0040
10 0055
10 0071
?0 0000
20 0005
20 0010
20 0015
20 0020
20 0025
20 0030
20 0035
20 0040
20 0045
20 0050
20 0055
20 0060
20 0065
20 0067
50 0000
50 0010
50 0025
50 0040
50 0057
00010
WATER
TEMP
CENT
13.3
13.2
13.2
12.1
11.6
10.4
10.1
30.2
29.fa
29.3
27.8
25.9
24.5
22.9
22.2
20.9
19.5
18.5
16.9
16.2
14.9
14.7
26.7
26.7
26.4
25.9
20.7
00300 00077 00094
DO THANSP CNDUCTVY
SECCHI FIELD
MG/L INCHES M1CROMHO
9.9
9.8
9.2
9.0
9.0
8.6
9.2
7.5
6.6
4.5
2.8
2.6
1.9
1.4
1.4
1.4
1.5
i.a
1.9
1.9
1.8
5.6
5.4
5.0
2.4
0.2
20 50
50
50
50
52
52
52
72 60
56
55
54
50
46
45
43
43
42
43
44
42
43
43
65 58
61
58
58
60
11EPALES
3
00400 00410
PH T ALK
CAC03
SU MG/L
7.20
7.20
7.20
7.20
7.10
7.10
7.10
B.10
6.30
6.30
6.30
6.30
6.50
6.50
6.30
6.20
6.20
10K
10K
10K
10K
10K
10K
10K
21
23
23
24
25
13
13
13
14
IS
2111202
0075 FEET DEPTH
00610 00625 00630 00671
NH3-N TOT KJEL N02&N03 PHOS-D1S
TOTAL
MG/L
0.090
0.060
0.070
0.090
0.080
0.070
0.070
0.090
0.100
0.070
0.070
0.090
0.060
0.060
0.050
0.060
0.200
N N-TOTAL
MG/L MG/L
0.700
0.300
0.300
0.300
0.200
0.200
0.300
0.600
0.300
0.300
0.200
1.800
0.600
0.400
0.300
0.300
0.400
0.290
0.280
0.280
0.260
0.300
0.340
0.380
0.130
0.200
0.340
0.350
0.410
0.120
0.120
0.120
0.110
0.020K
ORTMO
MG/L P
0.008
0.006
0.008
0.011
0.008
0.007
0.008
0.004
0.002
0.002
0.002
0*002
0.008
0.004
0.004
0.006
0.005
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 76/10/20
00665
DATE TIME UE^TH PHOS-TOT
FROM OF
TO DAY FEET MG/L P
73/03/29 It 10 0000 0.048
14 10 0006 0.039
14 10 0015 0.046
It 10 0025 0.044
14 10 0040 0.041
It 10 0055 0.036
14 10 0071 0.069
73/07/11 15 20 0000 0.013
15 20 0015 0.012
15 20 0030 0.013
15 20 0050 O.OO1*
15 20 0065 0.020
73/09/19 10 50 0000 0.010
10 SO 0010 0.006
10 50 0025 0.005
10 SO 0040 0.006
10 SO 0057 0.004
32217
CHLRPHYL
A
UG/L
7.8
4.2
5.2
3M303
35 31 30.0 060 57 30.0
LAKE NORMAN
37119 NORTH CAROLINA
HEPALES
3
2111202
0075 FEET
DEPTH
-------
STORE! RETRIEVAL DATE 75/10/80
371304
35 35 10.0 080 56 20.0
LAKE. NORMAN
37119 NORTH CAROLINA
DATE
FROM
TO
73/03/29
73/07/11
73/09/19
00010
TIME DEPTH WATER
OF TEMP
DAY FEET
15
15
15
15
15
15
16
16
16
16
16
11
11
11
11
11
00
00
00
00
00
00
40
40
40
40
40
35
35
35
35
35
0000
0006
0015
0022
003S
0048
0000
0005
0015
0030
0045
0000
0005
0010
0025
0042
CENT
19
15
12
12
12
11
31
29
27
24
19
30
28
26
26
25
.5
.6
.8
.4
.0
.1
.1
.6
.7
.0
.7
.2
.1
.8
.2
.5
11EPALES
00300
00
MG/L
9.5
9.6
9.5
9.2
8.8
3.6
3.0
2.6
2.4
3.0
3.4
3.2
1.0
0.3
00077
TRANSP
SECCM1
INCHES
IB
50
65
00094
CNDUCTV1T
FIELD
MICWOMHO
55
55
55
55
55
55
59
60
55
55
55
68
62
60
59
61
3
00400
PH
SU
7.1U
7.10
7.10
7.10
7.10
7.10
6.90
6.50
6.40
6.30
6.30
6.30
6.30
6.30
6.20
6.30
00410
T ALK
CAC03
MG/L
10K
10K
10K
10K
10K
10K
16
18
18
17
17
17
17
17
17
18
2111202
0052
00610
NH3-N
TOTAL
MG/L
0.120
0.090
0.100
0.110
0.120
0.120
0.110
0.110
0.130
0.130
0.060
0.140
0.080
0.060
0.050
0.100
FEET DEPTH
00625 00630
TOT KJEL N02&N03
N N-TOTAL
MG/L MG/L
0.300 0.280
0.200K 0.270
0.400 0.200
0.300 0.280
0.300 0.280
0.300 0.300
0.600 o.iao
0.500 0.280
0.200K 0.290
0.200K 0.230
0.200K 0.350
0.600 0.130
0.400 0.170
0.300 0.180
0.400 0.220
0.400 0.140
00671
PHOS-OIS
ORTHO
MG/L P
0.010
0.010
0.012
0.014
0.014
0.013
0.004
0.004
0.003
0.003
0.003
0.006
0.005
0.006
0*009
0.006
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/10/20
DATE
FROM
TO
OF
DAY FEET
73/03/29
73/!07/ll
73/09/19
15
15
15
15
15
15
16
16
16
16
16
11
11
11
11
11
00
00
00
00
00
00
40
40
40
40
40
35
35
35
35
35
0000
0006
0015
0022
0035
0048
0000
0005
0015
0030
0045
0000
0005
0010
0025
0042
0.049
0.045
0.043
0.0*5
0.045
0.047
0.017
0.017
0.018
0.022
0.030
0.012
0.010
0.006
0.011
0.011
371304
35 35 10.0 060 56 20.0
LAKE NOMMAN
371 IS) NORTH CAROLINA
11EPALES
3
2111202
0052 FEET
DEPTH
-------
STORET RETRIEVAL DATE 75/10/20
371305
35 41 30.0 080 56 00.0
LAKE NORMAN
37119 NORTH CAROLINA
DATE
FROM
TO
73/03/29
73/07/11
73/09/19
00010
TIME DEPTH WATER
OF TEMP
DAY FEET
15
15
IS
15
15
16
16
16
16
13
13
13
13
40
40
40
40
40
10
10
10
10
55
55
55
55
0000
0006
0015
0024
0034
0000
0005
0015
0030
0000
0010
0020
0032
CENT
13
12
12
12
12
30
28
25
23
25
25
2b
25
.3
.9
.8
.7
.7
.3
.S)
.6
.9
.9
.9
.5
.2
00300 00077 00094
DO THANSP CNDUCTVY
SECCHI FIELD
MG/L INCHES MICrtOMHO
9.1
8.8
8.8
8.5
8.8
5.4
2.6
8.0
7.0
6.2
5.2
15
60
37
50K
50K
SDK
50K
50K
55
50K
55
59
56
56
56
58
11EPALES
3
00400
PM
SU
7.20
7.20
7.20
7.10
7.10
8.90
7.90
6.60
6.50
7.20
6.80
6.60
6.30
00410
T ALK
CAC03
MG/L
10K
10K
10K
10K
10K
14
15
IS
18
16
15
16
15
2111202
0038
00610
NH3-N
TOTAL
MG/L
0.100
0.120
0.120
0.130
0.130
0.090
0.080
0.140
0.240
0.050
0.040
0.050
0.110
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.300
0.200
0.400
0.300
0.200
0.900
0.600
0.500
0.500
0.900
0.400
0.200
0.500
00630
N02&.N03
N-TOTAL
MG/L
0.280
0.2BO
0.260
0.280
0.280
0.080
0.120
0.210
0.210
0.070
0.070
0.080
0.130
00671
PHOS-DIS
ORTHO
MG/L P
0.010
0.014
0.014
0.012
0.012
0.004
0.003
0.007
0.004
0.010
0.007
0.007
0.007
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 7S/10/20
<»0665 32217
DATE TIME DEPTH PhOS-TOT CHLRPHYL
FROM OF A
TO UAY FEET MG/L P UG/L
73/03/29 15 40 0000 0.073 4.5
IS 40 0006 J.070
15 40 0015 0.074
Ib 40 0024 0.079
15 40 0034 0.076
73/07/11 16 10 0000 a.021 3.1
16 10 000$ 0.027
16 10 0015 0.024
16 10 0030 0.045
73/09/lQ 13 55 0000 0.017 13,5
13 55 0010 O.Olb
13 55 0020 3.018
13 55 0032 C.032
371305
35 41 30.0 030 58 00.0
LAKE NORMAN
37119 NOHTH CAKOLINA
11EPALES
3
2111202
0038 FEET
DEPTH
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORLT WET^IEVAL DATE 7^/10/20
3/UA1 L53713A1
35 45 30.0 OtJl 05 2b.O
CATAHtSA UltftR
37119 V.5 S LAK NORMAN
0/LAKE NOHMAN
HWr 73 HRDG .5 MI L)STh(EAM FKUM CO*AN DAM
11EPALES 2111204
4 0000 FEET DEPTH
DATt
TO
73/03/25
73/04/15
73/05/19
73/06/23
73/o 7/24
73/08/18
73/10/21
7J/11/17
73/12/15
7W01/06
74/01/19
74/02/03
74/02/16
00b3t> 00625
TIME DEPTH IMU2SN03 TOT KJEL
OF AI-TOTAL N
DAY FEET
11
07
10
11
15
09
12
10
15
IS
is
16
14
50
30
OS
00
45
30
30
30
30
00
00
30
SO
MG/L
3
0
0
u
0
0
0
0
0
I,
a
a
i.
.290
.240
.189
.176
.Od6
.056
.061
.ObO
. Ib6
,2b*
.276
.224
.22*
M(3/L
0
0
0
1
1
0
0
0
0
0
0
0
0
.200
.440
.^20
.680
.260
.480
.BOO
.700
.100
. lOiJ
.900
.200
.400
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.
034
040
028
060
ObO
017
065
C56
04*
024
074
025
015
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
.020
.007
.006
.005K
.005K
.006
.011
.006
.005K
.006
.005K
.OOSK
.005K
MG/L P
0.02b
0.025
0.020
0.020
0.010
0.006
O.OOB
0.015
0.015
0.015
0.010
0.010
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
bTOKtr RETRIEVAL DATE 75/10/20
3713A2 Lb3713A2
35 HJ 00.0 081 04 00.0
CATAHBA HIVER
37 MAP CATAMBA CO
I/LAKE NORMAN
US 64-70 riKOG NE CORNER OF CATAMBA
UEPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/03/25
73/04/15
73/05/19
73/06/23
73/07/24
73/08/18
73/10/21
73/11/17
73/12/15
74/01/06
74/01/19
74/02/03
74/02/16
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
UAY FEET
10
09
12
11
13
10
12
09
14
10
1^
14
15
45
40
00
10
45
05
00
30
30
00
00
30
00
MG/L
0
0
0
0
0
c
0
0
u
0
0
0
0
.231
.240
.168
.154
. 17b
.147
.126
.140
.160
.264
.320
,232
.224
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
1.
0.
0.
0.
280
320
270
360
820
500
SOU
144
100
500
600
200
600
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.082
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
046
058
082
126
132
046
144
052
136
240
045
055
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
025
014
012
005K
Oil
007
Oil
012
008
024
020
015
015
MG/L P
0.055
O.OSO
0.045
0.020
0.022
0.010
0.012
0.035
0.055
0.075
0.040
0.040
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
bTORET KETRIEVAL UAFt 7b/lu/2i>
371301 Lb371301
35 41 30.0 081 00 00.0
BALL CHEEK
37 HAP CATAKBA CO
T/LAKc. NORMAN
CATAWdA RU 1819
11EPALES
4
1.7 Nitf LONG ISLAND
2111204
0000 FEET DEPTH
DATE
FHOM
TO
73/03/25
73/04/15
73/05/19
73/06/23
73/07/24
73/08/18
73/10/21
73/11/17
7j/12/lh
74/01/06
74/01/1^
74/02/03
74/02/16
00630 00625
TIME DEPTH IX02&NU3 TOT KJEL
OF N- TOTAL N
DAY FEET
10
09
11
09
14
09
10
10
U9
12
Ib
13
13
00
15
00
30
30
00
30
30
IS
00
00
00
<*5
MG/L
C
C
u
0
0
0
o
0
L!
J
0
0
0
.240
.210
.IbO
,3Sb
.220
.170
.loU
.06^4
.200
.t20
.300
.27u
.2aO
MG/L
0.
0.
0.
1.
1.
7.
0.
0.
0.
1.
0 .
0.
0.
110
230
110
540
200
350
250
950
&00
COG
100*
300
200
00610 00671 00665
NH3-N PnOS-OlS PHOS-rOT
TOTAL OHTHO
MG/L
0.
0.
0.
0.
0.
i.
J.
0.
0.
0.
0.
0.
ij.
040
0**<+
027
UB1
260
260
023
340
060
068
OtO
075
015
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
o.
tj.
p
017
008
009
009
OOSK
009
015
005K
ooe
012
out*
010
005
MG/L P
0.03S
0.025
0.020
0.030
0.035
0.030
0.030
0.030
0.045
0.020
0.050
0.060
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOHET RETRIEVAL DATE 75/10/20
3713C1 LS3713C1
35 43 00.0 081 04 30.0
LfLE
37 MAP CATAMBA CO
T/LAKE NORMAN
UNAMEO RL> BRDG N SIDE TO*N CATAWBA
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/03/25
73/04/15
73/05/lSi
73/06/23
73/07/24
73/08/18
73/10/21
73/11/17
73/12/16
74/01/06
74/U1/19
74/02/03
74/02/16
00630 00625
TIME DEPTH N02fcN03 TOT KJEL
OF N-TOTAL N
UAY FEET
10
09
11
09
14
09
11
09
15
12
14
14
14
30
20
30
56
00
50
45
40
00
30
30
00
30
MG/L
0.
0.
0.
0.
0.
0.
U.
0.
0.
0.
0.
0.
0.
410
340
330
410
440
3BO
320
200
140
504
450
360
410
MG/L
0.
0.
0.
0.
1.
1.
0.
0.
0.
1.
440
210
160
380
300
000
400
400
200
too
0.400
0.
0.
300
200
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
052
034
042
042
072
320
030
252
048
060
0.068
0.
0.
030
025
MG/L
0.
0.
0.
0.
0.
0.
0*
0.
0.
P
023
023
024
024
032
024
044
032
005K
0.020
0.
0.
0.
028
025
015
MG/L P
0.050
0.050
0.070
0.065
0.090
0.055
0.075
0.025
0.060
0.065
0.125
0.050
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOKET KETRIEVAL LMTt 75/10/20
3713D1 LS3713D1
35 43 30.0 Gttl 01 30.0
BUFFALO bHOALS CKEtK
37 MAP IREOELL CO
T/LAKE NOKMAN
HD 1333 8RUG .6 Ml t OF US HWY 64-70
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FKOM
TO
73/03/25
73/04/15
7J/05/19
73/06/33
73/07/24
73/03/18
73/lO/2i
73/11/17
73/12/16
74/ul/Ob
74/01/19
7^/02/03
74/02/lh
U063U 00625
TIME DEPTH NU2NNU3 TOT KJEL
OF N-TUTAL N
bAY FEET
11
09
12
12
13
10
13
10
u9
13
13
Ib
14
00
50
30
IS
30
30
15
10
SO
?0
10
00
no
MO/L
0
c
\J
0
a
i)
u
G
C
\>
ii
0
0
,?70
.220
.18V
.260
.430
.273
.220
. ll)4
.224
.390
.336
.300
.2riH
MG/L
0.
J.
0.
0.
2.
0.
0.
0.
0.
0.
1.
0.
0.
110
?bO
100K
200
040
5^0
rt?5
124
600
100K
100
300
300
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.
u.
025
029
012
044
060
273
026
124
036
020
108
042
035
MG/L
0.
0.
0.
0.
u.
0.
o.
0.
0*
0.
0.
0.
0.
p
oil
005K
008
009
046
005K
014
008
008
008
008
010
010
MG/L P
0.020
0.020
0.010
0.02U
0.145
0.015
0.008
0.02b
0.03(1
0.020
0.050
0.060
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/10/20
37UE1 LS3713E1
35 41 00.0 080 55 30.0
HICKS CKELK
37 MAP IrtEDELL CO
T/LAKE NOKMAN
Kl> 1322 BHDG 1.6 MI S
11EPALE5
4
OF TKOUTMAN
2111204
0000 FEET DEPTH
DATE
FROM
TO
73/03/25
73/04/15
73/05/19
73/06/23
73/07/2**
73/08/18
73/10/21
73/11/17
73/12/16
74/01/06
74/01/19
74/02/03
74/02/16
00630 00625
TIME DEPTH N02&.N03 TOT KJEL
OF N-TOTAL N
DAY FEET
09
09
08
09
15
10
10
14
13
14
14
15
13
45
00
40
15
00
50
30
00
45
00
00
30
45
MG/L
0
0
0
0
0
0
0
0
0
u
0
0
0
.315
.300
.410
.370
.380
.380
.490
.430
.410
.450
.520
.340
.352
MG/L
0.200
0.420
0.180
0.730
1.600
0.350
0.550
0.750
0.200
0.750
0.200
0.300
2.100
00610 00671 00665
NH3-N PhOS-OIS PHOS-TOT
TOTAL ORTriO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
110
160
075
050
069
POO
030
100
0.036
0.
0.
0.
0.
104
132
120
230
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
064
088
115
126
054
180
500
300
148
084
120
100
020
MG/L P
0
0
0
0
0
0
0
.120
.140
.165
.170
.185
.240
.720
0.360
0
0
0
0
0
.240
.200
.195
.195
.840
-------
KtlKIEVAL UAFL 75/10/20
3713F1 LS3H3F1
35 37 00.0 080 50 30.0
UNNAMLU C*ttK
37 MAP 1KEOE.LL CO
T/LAKE NUKMAN
US rlWY 21 ttKDO 1 MI
HEPALtS
4
S OF MOORESVILLE
2111204
0000 KEET DEPTH
DATt
FKOM
TO
73/04/15
73/05/ 19
73/06/23
73/0//2-+
73/uH/18
73/10/21
73/11/U
73/ Id/ 16
74/01/06
74/0 i/ 1^
74/U2/0 3
74/J2/16
TIME DEPTH U02t>N03 TOT KJEL
OF A;- TOTAL N
DAf FtET
OH
U4
10
IS
lo
11
11
14
14
!<*
16
1<+
no
1?
15
30
00
JO
40
30
30
45
00
15
MO/L
t
0
u
o
•J
0
0
u
0
0
0
u
.350
. Iu5
.033
.05?
.315
.260
.0-^i?
. 290
.523
.528
• 3faH
,<+io
MG/L
0
0
?
0
1
0
u
0
0
0
u
1
.320
.^00
.600
.800
.050
.700
.300
.50C
.300
.?00
.700
,?00
00610 00671 00665
NM3-N PhOS-DlS PHOS-TOT
TOTAL ORTHO
^G/L
0.
0.
0.
0.
0.
0.
0.
c.
0.
0.
0 .
0.
027
015
058
014
OS*0
o3y
036
OB4
060
060
390
too
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
p
013
012
013
016
126
029
016
016
016
020
025
025
MG/L P
0.050
0.05C
0.075
0.040
0.142
0.085
0.045
0.045
0.060
U.123
0.375
-------
STOHET RETRIEVAL DATE 75/11/17
3713CA AS3713CA P002606
35 <»3 00.0 081 13 30.0
CONOVER NC
37 CATAMBA CO HWY M
T/LAKE NOrtMAN
LYLE CHEEK
11EPALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/11/30
73/12/27
74/01/29
74/02/27
74/03/30
74/04/29
74/05/30
74/06/28
74/07/29
74/08/2$
74/10/28
00630 00625
TIME DEPTH N02^N03 TOT KJEL
OF N-TOTAL N
DAY FEET
10
22
10
11
21
09
10
23
10
10
09
00
00
30
00
00
15
00
00
45
30
30
MG/L
26
12
8
14
8
b
1
0
0
0
9
.000
.000
.200
.300
.100
.280
.760
.056
.270
.120
.200
MG/L
6.900
1.200
1.100
2.300
1.700
5.500
2.500
15.000
13.000
10.000
3.400
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.680
0.054
0.140
0.110
0.085
0.440
0.050K
3.100
2.500
0.110
MG/L P
10.200
3.570
2.880
5.400
2.900
6.400
4.800
4.800
2*600
0.110
6.750
50051 50053
FLOW CONDUIT
RATE FLOW-MGD
MG/L P INST
11.500
4.300
4.600
5.800
3.900
7.600
5.400
6.600
4.100
13.000
7.200
0
0
0
0
0
0
0
0
0
0
0
MGD MONTHLY
.200
.200
.100
.090
.090
.140
.180
.310
.350
.200
.310
0.200
0.180
0.473
0.080
0.080
0.090
0.270
0.250
0.190
0.758
0.790
K VALUE KNOWN TO riE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 75/ll/i7
3713GA AS3713GA P000800
35 41 30.0 OBO 53 30.0
TrfOUTMAN NC
37 IKEDELL CO HWY M
T/LAKE NORMAN
bIG bRANCH
11EPALES 2141204
4 0000 FEET OEPTH
DATE
FROM
TO
73/05/22
73/06/22
73/07/25
73/11/27
74/03/OS
74/0^/04
74/06/24
74/09/16
74/09/23
TIME DEPTH
OF
DAY
16
13
IS
16
10
12
13
00630
N02&N03
N-TOTAL
FEET
30
00
00
00
00
00
00
MG/L
0.
0.
t.
9.
1.
2.
5.
1.
4.
280
200
900
750
000
500
<*16
000
500
00625
TOT KJEL
N
MG/L
3^.000
17.600
5.900
8.600
24.000
18.000
16.000
20.000
17.500
00610
NH3-N
TOTAL
MG/L
15.400
3.500
1.900
0.048
ri.650
5.300
3.950
5.900
7.750
00671
PHOS-OIS
ORTHO
MG/L P
10.400
13.600
4.500
12.600
9.600
5.300
7.500
9.300
9.200
00665
PHOS-TOT
50051
FLOW
RATE
MG/L P
U.900
15.700
6.600
15.000
13.500
8.200
9.900
10.500
12.000
INST
0
0
0
0
0
0
0
0
0
MGO
.050
.050
.060
.060
.060
.060
.066
.060
.050
b0053
CONDUIT
FLOW-MGD
MONTHLY
0.050
0.050
0,050
0.060
0.065
0.040
0.060
0.060
0.150
-------
STORE! RETRIEVAL DATE 75/11/17
3713XA TF3713XA P001295
35 28 30.0 080 49 08.0
CORNELIUS
37 Z50 CHARLOTTE
T/LAKE NORMAN
UNNAMED CREEK
HEPALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/06/19
73/07/27
73/08/17
73/09/19
73/10/18
73/11/19
73/12/19
74/01/17
74/02/19
74/03/19
74/04/19
74/05/17
00630
TIME DEPTH N02&N03
OF N-TOTAL
DAY FEET
11
09
10
14
10
09
10
10
11
10
10
11
00
30
20
45
00
40
40
40
40
00
30
00
MG/L
0.070
0.100
0.040
3.200
0.031
0.0*0
0.270
0.080
0.520
0.080
0.080
0.200
00625
TOT KJEL
N
MG/L
47.900
37.000
44.000
33.700
37.000
38.000
42.000
37.500
21.000
29.000
31.000
37.000
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
28.000
9.900
7.600
20.200
21.000
22.000
16.000
15.200
8.400
16.500
23.000
17.300
MG/L P
10.500
0.810
4.300
9.100
7.700
H.500
7.200
6.200
3.500
8.400
7.900
8.800
50051 50053
FLOW CONDUIT
RATE FLOW-MOD
MG/L P INST
14.700
6.120
5.500
12.500
9.600
10.500
11.000
9.500
5.600
11.500
14.000
13.500
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
MGD MONTHLY
206
206
206
206
206
206
206
206
206
206
206
206
0.190
0.189
0.190
0.190
0.189
0.190
0.190
0.190
0.190
0.190
0.190
0.190
------- |