U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
RIVANNA RESERVOIR
ALBERMARLE COUiifY
VIRGINIA
EPA REGION III
WORKING PAPER No, 466
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-O32
-------
REPORT
ON
RIVANM RESERVOIR
ALBERMARLE C01MY
VIRGINIA
EPA REGION III
WORKING PAPER No, 466
WITH THE COOPERATION OF THE
VIRGINIA STATE WATER CONTROL BOARD
AND THE
VIRGINIA NATIONAL GUARD
JUNE, 1975
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CONTENTS
Page
Foreword i i
List of Virginia 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 5
IV. Nutrient Loadings 10
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(cj], 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.
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m
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Virginia State Water Con-
trol Board for professional involvement and to the Virginia
National Guard for conducting the tributary sampling phase of
the Survey.
Eugene T. Jensen, Executive Secretary of the State Water
Control Board; Michael A. Bellanca, Director; Jean W. Gregory,
Pollution Control Specialist; and Robert W. Pitchford, Pollution
Control Technician; Bureau of Surveillance and Field Studies;
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 J. McCaddin, the Adjutant General of
Virginia, and Project Officer Lt. Colonel James D. Manley, who
directed the volunteer efforts of the Virginia National Guardsmen,
also are gratefully acknowledged for their assistance to the
Survey.
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iv
LAKE NAME
Bluestone
Chesdin
Chickahominy
Claytor
J. H. Kerr
0. W. Flannagan
Occoquan
Rivanna
Smith Mountain
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF VIRGINIA
COUNTY
Giles, VA; Mercer,
Monroe, Summers, WV
Amelia, Chesterfield,
Dinwiddie
Charles City, New Kent
Pulaski
Charlotte, Hallifax,
Micklenburg, VA;
Granville, Vance,
Warren, NC
Dickenson
Fairfax, Prince William
Albemarle
Bedford, Franklin,
Pittsylvania
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78° 45'
78° 30'
38° 15
iarlysville
SOUTH FORK RIVANNA
RIVER RESERVOIR
<8> Tributary Sampling Site
X Lake Sampling Site
Sewage Treatment Facility
t^_9 Drainage Area Boundary
. . . . ? VKm.
Scale
5 Mi.
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RIVANNA RESERVOIR
STORE! NO. 5113
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Rivanna Reservoir is eutrophic.
It ranked seventh in overall trophic quality when the eight
Virginia lakes sampled in 1973 were compared using a combina-
tion of six parameters*. Six lakes had less median total phos-
phorus, median dissolved phosphorus, and median inorganic
nitrogen; two had less mean chlorophyll aj and six had greater
mean Secchi disc transparency. Depression of dissolved oxygen
with depth occurred at sampling station 1 in July and September
and at station 2 in July.
Survey limnologists noted an algal bloom at stations 2 and
3 in September.
B. Rate-Limiting Nutrient:
The algal assay results indicate the reservoir was phos-
phorus limited at the time the sample was taken (04/09/73).
The reservoir data indicate phosphorus limitation at stations
1 and 2 and nitrogen limitation at station 3 at all sampling
times.
C. Nutrient Controllability:
1. Point sources—During the sampling year, point sources
contributed 9.0% of the total phosphorus load to the reservoir.
Morton's Frozen Foods in Crozet accounted for 8.0%, and the
* See Appendix A.
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2
Farmington Country Club accounted for 1.0% of the total.
Other point sources are known, but it is not likely they were
significant contributors to the total reservoir load during
the sampling year (see page 11).
The present loading of 11.83 g/m2/year is almost 12 times
that proposed by Vollenweider (Vollenweider and Dillon, 1974)
as a eutrophic loading (see page 15). Although Vollenweider's
model may not be applicable to water bodies with short hydraulic
rentention times, the present trophic condition of the reser-
voir is evidence of excessive nutrient loads.
Because the reservoir is phosphorus limited much of the
time, all phosphorus inputs should be minimized to the greatest
practicable extent. Phosphorus removal at the listed point
sources should at least help slow the present rate of eutrophi-
cation of the reservoir. Further water quality improvement would
be expected if a significant portion of the phosphorus export of
Mechums River is controllable (see discussion below).
2. Non-point sources—The gaged tributaries were estimated
to have contributed 91.0% of the total reaching the reservoir.
Mechums River contributed nearly 71% of the total and had the
highest export rate (see page 14). The 59 kg P/km2/yr measured
is more than twice the next highest rate (Fishing Creek, 29 kg
P/km2/yr) and may be indicative of unknown and unsampled point
sources, particular land-use practices within the drainage, or
underestimation of the listed point source loads. Additional
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3
study is needed to determine the controllability of nutrient
sources in the Mechums River Drainage.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
J.J.
A. Lake Morphornetry :
1. Surface area: 1.82 kilometers2.
2. Mean depth: 6.1 meters.
3. Maximum depth: >11.6 meters.
4. Volume: 11.102 x 106 m3.
5. Mean hydraulic retention time: 16 days.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Ivy Creek 56.7 0.7
Mechums River 256.7 3.0
Moormans River 193.0 2.2
Buck Mountain Creek 95.8 1.1
Fishing Creek 11.7 0.1
Naked Creek 8.2 0.1
Minor tributaries &
immediate drainage - 49.5 0.6
Totals 671.6 7.8
2. Outlet -
South Fork, Rivanna River 673.4** 7.8
C. Precipitation***:
1. Year of sampling: 115.2 centimeters.
2. Mean annual: 112.1 centimeters.
t Table of metric conversions—Appendix B.
tt Bellanca, 1975.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
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5
III. LAKE WATER QUALITY SUMMARY
Rivanna Reservoir was sampled three times during the open-water
season of 1973 by means of a pontoon-equipped Huey helicopter. Each
time, samples for physical and chemical parameters were collected
from three stations on the lake and from a number of depths at each
station (see map, page v). During each visit, a single depth-integrated
(4.6 m or near bottom to surface) sample was composited from the stations
for phytoplankton identification and enumeration; and during the first
visit, a single 18.9-liter depth-integrated sample was composited
for algal assays. Also each time, a depth-integrated sample was collected
from each of the stations for chlorophyll £ analysis. The maximum
depths sampled were 11.6 meters at station 1, 8.8 meters at station
2, and 2.4 meters at station 3.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
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A. SUMMARY OF PHYSICAL AND CHEMICAL CHARACTERISTICS FOR RIVANNA (SOUTH FORK) RES
STORET CODE 5113
PARAMETER
TEMP (C>
OISS OXY (MG/L)
CNOCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
1ST SAMPLING ( 4/ 9/73)
3 SITES
2ND SAMPLING ( 7/19/73)
3 SITES
3RD SAMPLING ( 9/29/73)
3 SITES
RANGE
11.0
9.7
50.
6.8
10.
0.066
0.022
0.370
0.030
0.200
0.400
0.610
2.7
0.4
- 12.4
- 11.0
50.
8.0
17.
- 0.216
- 0.039
- 0.670
- 0.100
- 0.700
- 0.770
- 1.150
7.7
0.6
MEAN
11.7
10.1
50.
7.6
13.
0.119
0.028
0.481
0.072
0.375
0.553
0.856
5.1
0.5
MEDIAN
11.6
10.0
50.
7.7
12.
0.092
0.027
0.420
0.070
0.400
0.485
0.845
5.0
0.4
RANGE
23.5
3.2
53.
7.4
18.
0.023
0.004
0.160
0.130
0.200
0.290
0.600
3.1
0.8
- 26.4
8.0
60.
8.1
23.
- 0.123
- 0.066
- 0.420
- 0.350
- 0.700
- 0.720
- 1.070
- 12.1
1.8
MEAN
25.3
6.0
56.
7.5
21.
0.060
0.020
0.292
0.207
0.550
0.499
0.842
6.4
1.4
MEDIAN
25.8
6.8
55.
7.4
21.
0.037
0.008
0.275
0.205
0.600
0.520
0.865
3.9
1.5
KANGE
20.9
2.0
57.
6.6
18.
0.040
0.009
0.130
0.090
0.200
0.230
0.430
1.8
1.0
- 23.5
8.0
- 250.
7.6
22.
- 0.165
- 0.099
- 0.400
- 0.370
- 1.200
- 0.580
- 1.360
- 15.9
1.4
MEAN
22.7
5.6
153.
6.9
20.
0.076
0.021
0.191
0.185
0.520
0.376
0.711
8.5
1.2
MEDIAN
23.0
5.9
147.
6.8
20.
0.060
0.010
0.180
0.19b
0.500
0.395
0.660
7.8
1.3
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B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
04/09/73
07/19/73
09/29/73
2. Chlorophyll a^ -
Sampling
Date
04/09/73
07/19/73
09/29/73
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Fragilaria sp.
Dinobryon sp.
Melosira sp.
Cryptomonas s£.
Navicula sp.
Other genera
Total
Melosira sp.
Flagellates
Sphaerellopsis sp.
Navicula sp.
Ankistrodesmus sp.
Other genera
Total
Anabaena sp.
Melosira sp.
Cyclotella sp.
Flagellates
Microcystis sp.
Other genera
Algal Units
per ml
1,355
376
256
241
196
814
3,238
191
134
96
96
38
76
631
Total
Station
Number
01
02
03
01
02
03
01
02
03
1,635
Chlorophyll
(iig/1)
7.7
2.7
5.0
3.9
3.1
12.1
7.8
15.9
1.8
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8
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N Maximum yield
Spike (mg/1) Cone, (mg/1) Cone, (mg/1) (mg/l-dry wt.)
Control 0.035 0.490 8.9
0.050 P 0.085 0.490 11.7
0.050 P + 1.0 N 0.085 1.490 23.1
1.0 N 0.035 1.490 8.5
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum, indicates that the potential primary productivity
of Rivanna Reservoir was quite high at the time the sample
was collected (04/09/73). Also, a significant increase in
yield when orthophosphorus alone was added indicates that
the lake was phosphorus limited at that time. Note that
the addition of nitrogen alone produced a yield no greater
than that of the control.
The reservoir data indicate a combination of limiting
nutrients; although it will be noted that station 3, nearest
the nutrient point sources impacting the Mechum River,
tended toward nitrogen limitation while stations 1 and 2,
further away, tended towards phosphorus limitation.
Following is a tabulation of the mean inorganic nitro-
gen/orthophosphorus ratios for each of the stations and
sampling times with the indicated limiting nutrient in
parentheses.
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Station
04/09/73
1
2
3
18/1
25/1
13/1
[P)
[P)
[N?)
07/19/73
09/29/73
71/1
67/1
9/1
;p)
42/1 (P)
26/1 (P)
6/1 (N)
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10
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Virginia 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 May and June when two samples were collected.
Sampling was begun in July, 1973, and was completed in June, 1974.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Virginia District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads shown are
those measured minus point-source loads, if any.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("II" of U.S.G.S.) were estimated using the means of the
nutrient loads, in kg/km2/year, at station D-l, E-l, and G-l and
multiplying the means by the II area in km2.
Nutrient loads from the town of Crozet, Morton's Frozen Foods, and
Murray Manufacturing were calculated using nutrient concentrations
and corresponding flow data provided by the Virginia Water Control
Board (Godfrey, 1976). Nutrient loads for Miller School, Brownsville,
and Acme Visible Records, all of which discharge intermittently, are
* See Working Paper No. 175.
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11
not included in the following tables because it is not likely these
sources contributed significant amounts during the sampling year.
The operator of the Farmington Country Club wastewater treatment
plant provided too few monthly effluent samples and corresponding flow
data to permit calculation of nutrient loads, so the loads were esti-
mated at 1.134 kg P and 3.401 kg N/capita/year.
A. Waste Sources:
1. Known municipal -
Name
Farmington ,.
Country Club
Brownsville
Crozet
Miller School
Pop.
Served
250
?
Treatment
ext. aer.
ext. aer.
Mean Flow
(mVd)
94.6*
151.0**
( interim' t-
Receiving
Water
Ivy Creek
Slabtown Branch/
Lickinghole Creek
tent discharge)
40
100-200
none
none
15.1*
75.7*
(intermit-
Powel 1 ' s Creek/
Lickinghole Creek
Miller Branch/
Mediums River
tent discharge)
2. Known industrial -
Type
Name Waste Treatment
Mortons Frozen food pro- none
Foods, Crozet cessing
Murray Mfg., - none
Earlysville
Acme Visible - none
Records, Crozet
Mean Flow
(mVd)
1,099.2
1.3
28.4
(intermit-
tent discharge)
Receiving
Water
Trib. of
Lickinghole Creek
Trib. of S. Fk.
Rivanna River
Trib. of
Lickinghole Creek
t Godfrey, 1976.
tt Gregory, 1973.
* Estimated at 0.3785 m3/capita/day.
** Design flow.
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12
B. Armual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yjr total
a. Tributaries (non-point load) -
Ivy Creek 1,070 5.0
Mediums River 15,255 70.9
Moormans River 1,505 7.0
Buck Mountain Creek 790 3.6
Fishing Creek 335 1.6
Naked Creek 105 0.5
b. Minor tributaries & immediate
drainage (non-point load) - 480 2.2
c. Known municipal STP's -
Farmington Country Club 220 1.0
Brownsville ?
Crozet 10 <0.1
Miller School ?
d. Sep'tic tanks - Unknown ?
e. Known industrial -
Morton's Frozen Foods 1,720 8.0
Murray Mfg. 5 <0.1
Acme Visible Records ?
f. Direct precipitation* - 30_ 0.2
Total 21,525 100.0
2. Outputs -
Lake outlet - S. Fk., Rivanna R. 13,945
3. Net annual P accumulation - 7,580 kg.
* See Working Paper No. 175.
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13
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Ivy Creek 29,640 11.3
Mediums River 117,435 44.8
Moormans River 54,630 20.8
Buck Mountain Creek 28,345 10.8
Fishing Creek 4,785 1.8
Naked Creek 2,970 1.1
b. Minor tributaries & immediate
drainage (non-point load) - 15,530 5.9
c. Known municipal STP's -
Farmington Country Club 130 0.1
Brownsville ?
Crozet 165 0.1
Miller School ?
d. Septic tanks - Unknown ?
e. Known industrial -
Morton's Frozen Foods 6,525 2.5
Murray Mfg. 10 <0.1
Acme Visible Records ?
f. Direct precipitation* - 1,965 0.8
Total 262,130 100.0
2. Outputs -
Lake outlet - S. Fk., Rivanna R. 276,455
3. Net annual N loss - 14,325 kg.
* See Working Paper No. 175.
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14
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Ivy Creek 19 523
Mediums River 59 457
Moormans River 8 283
Buck Mountain Creek 8 296
Fishing Creek 29 409
Naked Creek 13 362
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15
E. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated Total Accumulated
grams/mVyr 11.83 4.16 144.0 loss*
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Rivanna Reservoir:
"Dangerous" (eutrophic loading) 2.20
"Permissible" (oligotrophic loading) 1.10
* There was an apparent loss of nitrogen during the sampling year. This
may have been due to nitrogen fixation in the lake, solubilization of
previously sedimented nitrogen, recharge with nitrogen-rich ground
water, or unknown and unsampled point sources discharging directly to
the lake. Whatever the cause, a similar nitrogen loss has occurred at
Shagawa Lake, Minnesota, which has been intensively studied by EPA's
former National Eutrophication and Lake Restoration Branch (Malueg et
al., 1975).
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16
V. LITERATURE REVIEWED
Bellanca, M. A., 1975. Personal communication (lake morphometry).
VA Water Contr. Bd., Richmond.
Godfrey, John, 1976. Personal communication (industrial nutrient
loads). VA Water Contr. Bd., Richmond.
Gregory, Jean, 1973. Treatment plant questionnaire (Farmington
Country Club STP). VA Water Contr. Bd., Richmond.
Malueg, Kenneth W., D. Phillips Larsen, Donald W. Schults, and
Howard T. Mercier; 1975. A six-year water, phosphorus, and
nitrogen budget for Shagawa Lake, Minnestoa. Jour. Environ.
Qual., vol. 4, no. 2, pp. 236-242.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
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VI. APPENDICES
17
APPENDIX A
LAKE RANKINGS
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LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 5105 JOHN W. FLANNAGAN DAM 507
2 5103 CLAYTOR LAKE 378
3 5110 SMITH MOUNTAIN LAKE 358
4 5112 CHICKAHOMINY LAKE 315
5 5111 LAKE CHESDIN 285
6 5106 JOHN H. KERR RESERVOIR 271
7 5113 RIVANNA (SOUTH FORK) RES 213
8 5108 OCCOQUAN RESERVOIR 72
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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
5103 CLAYTOR LAKE
5105 JOHN W. FLANNAGAN DAM
5106 JOHN H. KERR RESERVOIR
5108 OCCOQUAN RESERVOIR
5110 SMITH MOUNTAIN LAKE
5111 LAKE CHESDIN
5112 CHICKAHOMINY LAKE
5113 RIVANNA (SOUTH FORK) RES
MEDIAN
TOTAL P
0.031
0.011
0.04^
0.098
0.016
0.044
0.066
0.079
MEDIAN
INORG N
0.450
0.320
0.290
0.525
0.410
0.240
0.125
0.475
500- .
MEAN SEC
439.500
415.700
458.937
459.750
419.667
465.778
455.333
460.222
MEAN
CHLO«A
5.642
5.955
3.833
12.417
11.593
12.556
13.600
6.667
15-
MIN DO
14.900
14.800
15.000
15.000
15.000
14.800
9.400
13.000
MED I,
DISS ORTI
0.008
0.004
0.009
0.037
0.005
0.008
0.017
0.022
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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
510*3 CLAYTOR LAKE
5105 JOHN W. FLANNAGAN 0AM
5106 JOHN H. KERR RESERVOIR
5103 OCCOQUAM RESERVOIR
5110 SMITH MOUNTAIN LAKE
5111 LAKE CHESOIN
5112 CHICKAHOMINY LAKE
5113 RIVANNA (SOUTH FORK) RES
MEDIAN
TOTAL P
71 (
100 (
43 (
0 (
86 (
57 (
29 (
14 (
5)
7)
3)
0)
6)
4)
2)
1)
MEDIAN
INORG
29 (
57 (
71 (
0 (
43 (
86 (
100 (
14 (
N
2)
4)
5>
0)
3)
6)
7)
1)
500-
MEAN SEC
71 (
100 (
43 (
29 (
86 (
0 (
57 (
14 (
5)
7)
3)
2)
6)
0)
4)
1)
MEAN
CriLORA
100 (
86 (
57 (
29 (
43 (
14 (
0 (
71 (
7)
6)
4)
2)
3)
1)
0)
5)
15-
MIN DO
43 (
64 (
14 (
14 (
14 (
64 (
100 (
86 (
3)
4)
0)
0)
0)
4)
7)
6)
MEDIAN
DISS ORTHO P
64 (
100 (
. 43 (
0 (
86 (
64 (
29 (
14 (
4)
7)
3)
0)
6)
4)
2)
1)
INDEX
NO
378
507
271
72
• 358
235
315
213
-------
APPENDIX B
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
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
LAKE CODE 5113
TRIBUTARY FLOW INFORMATION FOR VIRGINIA
S F RIVANNA RIVER RESERVOIR
02/05/76
673.4
MAR
APR
MAY
TOTAL DRAINAGE AREA OF LAKE(SO KM)
SUB-DRAINAGE
TRIBUTARY AREA(SO KM) JAN FEB
511JA1
5113B1
51UCI
5U3D1
5113E1
5113F1
5113GI
5113ZZ
TOTAL DRAINAGE AREA OF LAKE = 673.4
SUM OF SUB-DRAINAGE AREAS = 673.6
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
NORMALIZED FLOWS(CMS)
JUN JUL AUG
SEP
OCT
NOV
SUMMARY
TOTAL FLOW IN
TOTAL FLOW OUT
93.04
93.73
TRIBUTARY MONTH YEAR
S113A1
MEAN FLOW DAY
FLOW DAY
FLOW DAY
FLOW
5113B1
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
73
73
73
73
73
73
74
74
74
74
74
74
73
73
73
73
73
73
74
74
74
74
74
74
4.70
5.86
2.83
7.70
6.14
21.66
15.29
7.93
8.72
9.91
8.21
7.31
0.67
0.84
0.41
1.08
0.87
2.75
.98
.19
.13
.27
.05
0.96
15
12
9
7
11
8
13
10
10
19
5
2
15
12
9
7
11
8
13
10
10
19
5
2
4.90
2.83
2.55
4.81
5.61
8.50
13.73
7.93
5.52
7.22
5.24
15.86
0.74
0.40
0.40
0.57
0.79
0.91
1.76
1.19
0.71
0.93
0.68
2.04
24
17
24
17
5.38
7.79
0.71
1.02
DEC
MEAN
673.4
56.7
356.7
193.0
95.8
11.7
8.2
50.5
8.78
0.71
3.40
2.55
1.22
0.14
0.08
0.62
10.48
0.96
4.25
3.11
1.87
0.20
0.14
0.85
15.01
1.30
S.66
4.25
2.21
0.28
0.20
1.16
12.74
1.10
4.81
3.68
1.84
0.23
0.17
0.96
9.34
0.71
3.68
2.66
1.25
0.14
0.08
0.62
6.23
0.45
2.41
1.76
0.79
0.08
0.06
0.40
3.68
0.25
1.44
1.05
0.45
0.03
0.03
0.23
5.95
0.71
2.27
1.64
0.76
0.08
0.06
0.37
3.68
0.23
1.42
0.99
0.42
0.03
0.03
0.20
4.25
0.28
1.70
1.19
0.54
0.06
0.03
0.25
5.95
0.48
2.27
1.70
0.82
0.08
0.06
0.42
7.65
0.59
2.83
2.21
1.05
0.11
0.08
0.54
7.60
0.65
3.00
2.23
1.10
0.12
0.08
0.55
-------
LAKE CODE 5113
TRIBUTARY FLOW INFORMATION FOR VIRGINIA
S F RIVANNA RIVER RESERVOIR
02/05/76
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY. MONTH YEAR MEAN FLOW DAY
5113C1
511301
5113E1
5113F1
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
it
5
6
7
8
9
10
11
12
1
2
3
4
5
6
73
73
73
73
73
73
74
74
74
74
74
74
73
73
73
73
73
73
74
74
74
74
74
74
73
73
73
73
73
73
74
74
74
74
74
74
73
73
73
73
73
73
74
74
74
74
74
74
1.85
2.32
1.12
2.94
2.35
8.27
5.95
3.06
3.34
3.74
3.11
2.78
0.66
0.82
0.40
1.05
0.85
2.97
2.15
.10
.22
.39
.13
.02
0.52
0.65
0.31
0.84
0.67
2.38
1.70
0.91
0.96
1.08
0.88
0.79
0.09
0.11
0.06
0.14
0.12
0.42
0.30
0.15
0.17
0.19
0.15
0.14
15
12
9
7
11
8
13
10
10
19
5
2
15
12
9
7
11
8
13
10
10
19
S
2
15
12
9
7
11
8
13
10
10
19
5
Z.
15
12
9
7
11
8
13
10
10
19
5
2
FLOW DAY
1.50
1.13
0.99
1.73
2.18
3.11
5.24
3.00
2.04
2.72
1.98
5.95
0.76
0.40
0.31
0.74
0.76
1.13
1.90
1.08
0.76
1.02
0.74
2.24
0.54
0.31
0.28
0.54
0.62
0.91
1.50
0.88
0.59
0.79
0.57
1.73
0.11
0.06
0.06
0.08
0.11
0.16
0.26
0.15
0.10
0.14
0.10
0.30
24
17
24
17
24
17
24
17
FLOW DAY
2.04
2.97
0.76
1.08
0.59
0.85
FLOW
0.10
0.15
-------
LAKE CODE 5113
TRIBUTARY FLOW INFORMATION FOR VIRGINIA
S F RIVANNA RIVER RESERVOIR
02/05/76
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
S113G1
7
8
9
10
11
12
1
2
3
4
5
6
73
73
73
73
73
73
74
74
74
74
74
74
0.07
0.08
0.04
0.10
0.08
0.30
0.22
0 . 1 1
0.12
0.14
0.11
0.10
IS
12
9
7
11
8
13
10
10
19
5
2
FLOW DAY
0.06
0.03
0.03
0.06
0.08
0.12
0.19
0.11
0.07
0.10
0.07 24
fl.22 17
FLOW DAY
FLOW
0.07
0.11
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 76/02/05
511301
33 05 42.0 078 28 08.0
RIVANNA (SOUTH FORK) RESERVOIR
51003 VIRGINIA
DATE
FROM
TO
73/04/09
73/07/19
73/09/29
TIME
OF
DAY
12 00
12 00
12 00
12 00
12 00
10 35
10 25
10 25
10 25
10 10
10 10
10 10
10 10
10 10
DEPTH
FEET
0000
0006
0016
0025
0038
0000
0005
0015
0035
0000
0005
0015
0025
0035
00010
MATER
TEMP
CENT
12.4
12.3
12.0
11. B
11.6
26.2
25.9
25.7
24.3
23.2
23.0
23.0
22.8
22.1
11EPALES
00300
DO
MG/L
10.
10.
10.
9.
6.
4.
3.
5.
6.
4.
Z.
3
2
0
9
8
4
2
2
0
2
0
00077
T«ANSP
SECCHI
INCHES
15
60
50
00094
CNOUCTVY
FIELD
MICROMHO
50K
50K
50K
50K
50K
59
57
57
60
57
58
60
60
63
3
00400
PH
SU
7
7
6
7
7
7
7
7
7
6
6
6
6
6
.80
.90
.80
.40
.80
.40
.40
.40
.50
.80
.80
.70
.60
.60
00410
T ALK
CAC03
MG/L
17
16
17
17
17
18
19
22
23
20
19
21
20
22
2111202
0042
00610
NH3-N
TOTAL
MG/L
0.060
0.060
0.060
0.060
0.080
0.260
0.230
0.260
0.350
0.210
0.220
0.220
0.260
0.370
FEET
DEPTH
00625
TOT
N
KJEL
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.400
.200K
.200K
.200
.200
.600
.600
.600
.700
.400
.500
.500
.500
.500
00630
N02&.N03
N-TOTAL
MG/L
0.420
0.420
0.410
0.410
0.410
0.320
0.280
0.270
0.370
0.180
0.180
0.190
0.180
0.210
00671
PHOS-DIS
ORTHO
MG/L P
0.026
0.036
0.023
0.026
0.023
0.008
0.004
0.008
0.013
0.010
0.010
0.009
0.011
0.013
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/04/09 12 00 0000
12 00 0006
12 00 0016
12 00 0025
12 00 0038
73/07/19 10
10
10
73/09/29
?5 0000
25 0005
25 0015
10 25 0035
10 10 0000
10 10 0005
10 10 0015
10 10 0025
10 10 0035
0.087
0.080
0.078
0.080
0.098
0.037
0.029
0.038
0.077
0.042
0.049
0.052
0.069
0.085
7.7
3.9
7.8
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/02/05
511303
38 06 18.0 078 29 18.0
RIVANNA (SOUTH FORK) RESERVOIR
51003 VIRGINIA
DATE
FROM
TO
73/04/09
73/07/19,
73/09/29
DATE
FROM
TO
73/04/09
73/07/19
73/09/29
TIME DEPTH
OF
DAY FEET
12 30 0000
12 30 0006
12 30 0015
12 30 0022
12 30 0029
11 10 0000
11 10 0005
11 10 0015
10 25 0000
10 25 0005
10 25 0012
TIME DEPTH
OF
DAY FEET
12 30 0000
12 30 0006
12 30 0015
12 30 0022
12 30 0029
11 10 0000
11 10 0005
11 10 0015
10 25 0000
10 25 0005
10 25 0012
00010
MATER
TEMP
CENT
11.8
11.6
11.5
11.5
11.5
26.4
26.2
26.0
23.5
23.3
23.2
00665
PHOS-TOT
MG/L P
0.097
0.177
0.197
0.216
0.172
0.023
0.028
0.031
0.040
0.046
0.071
00300
DO
MG/L
9.9
9.7
10.0
9.9
7.4
4.0
5.8
6.0
32217
CHLRPHYL
A
UG/L
2.7
3.1
15.9
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES M1CROMHO
15 50K
50K
50K
50K
50K
72 54
54
55
54 250
250
230
11EPALES
3
00400 00410
PH
SU
7.80
7.40
7.80
7.40
7.70
7.40
7.40
7.40
7.00
6.90
6.80
T ALK
CAC03
MG/L
12
10
10
10K
10K
21
21
21
18
20
20
2111202
0033 FEET DEPTH
00610 00625 00630
NH3-N
TOTAL
MG/L
0.080
0.100
0.100
0.100
0.100
0.160
0.200
0.210
0.090
0.100
0.180
TOT KJEL
N
MG/L
0.700
0.500
0.500
0.400
0.400
0.600
0.700
0.400
0.600
0.500
0.300
N02&N03
N-TOTAL
MG/L
0
0
0
0
0
0
0
0
0
0
0
.450
.620
.610
.610
.670
.210
.260
.230
.140
.140
.130
00671
PHOS-OIS
ORTHO
MG/L P
0.022
0.028
0.030
0.030
0.030
0.005
0.007
0.007
0.010
0.010
0.010
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/02/05
511303
38 07 29.0 078 30 47.0
RIVANNA (SOUTH FORK) RESERVOIR
51003 VIRGINIA
DATE
FROM
TO
73/04/09
73/07/19
73/09/29
DATE
FROM
TO
73/04/09
73/07/19
73/09/39
TIME DEPTH
OF
DAY FEET
13 00 0000
13 00 0007
11 35 0000
11 35 0004
11 35 0008
10 40 0000
10 40 0005
TIME DEPTH
OF
DAY FEET
13 00 0000
13 00 0007
11 35 0000
11 35 0004
11 35 0008
10 40 0000
10 40 0005
00010
WATER
TEMP
CENT
11.0
11.0
25.0
23.9
23.5
22.0
20.9
00665
PHOS-TOT
MG/L P
0.066
0.083
0.123
0.108
0.111
0.165
0.146
00300
DO
MG/L
11.0
8.0
8.0
8.0
7.6
32217
CHLRPHYL
A
UG/L
5.0
12.1
1.8
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
24 50K
50K
30 53
53
54
38 250
250
11EPALES 2111202
3 0012 FEET DEPTH
00400 00410 00610 00625 00630
PH
T ALK NH3-N
CAC03 TOTAL
su
8.00
7.70
8.10
7.50
7.60
7.60
6.90
MG/L MG/L
11 0
11 0
21 0
21 0
22 0
20 0
20 0
.040
.030
.130
.140
.130
.100
.100
TOT KJEL
N
MG/L
0.500
0.300
0.700
0.200K
0.400
1.200
0.200*
N02&N03
N-TOTAL
MG/L
0.370
0.370
0.160
0.400
0.420
0.160
0.400
00671
PHOS-DIS
ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
P
039
022
026
066
061
030
099
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
bTOHET *ET*1F\/AL OATh
5113A1
38 Ob 02.0 076 27 <*3.0
:a FOKtS r?IVANNA hUVEK
51u39 7.b t CHAKLOTTES
U/S FORK HIV ANN KIvEK KE
US 29 aKUu 3 MI NE Oh CHAKLOTTESVILLE
HEP ALES 2111204
t OUOO FEET DEPTH
•JAFE
FKO>vi
TU
73/u7/15
73/Orf/ 12
73/U9/09
7_>/ lo/O 7
73/1 1/11
7j/12/0«
74/u 1/13
74/02/10
74/03/lu
7<+/04/ 19
74/05/05
74/ u 5/ 2^*
7^*/ v o/ 0 2
7^»/0 6/ 1 7
FIi^E Dfc.PFn
OF
DAY FEET
11 17
10 oo
11 55
15 00
09 45
11 15
10 46
14 30
14 45
1 7 4b
15 35
17 35
16 45
18 57
•'iu^'\tG3
''J-TUT Al_
Mb/L
•J.230
u .24o
w . 19rt
0.270
0.500
•J . 3 1 2
0.552
0.410
U.3bO
u . 08«
O.O^o
J.252
C . 16d
0 . 0 8 •+
00625
TOT KJtL
N
0.530
0.300
0. 740
1.230
1.300
0.^00
0.2oC
1.100
0.700
0.200
0.600
2.600
1.200
0 .300
00610
UH3-N
FufflL
0.210
0.120
0.290
0.180
0.130
C.064
0.032
J.C25
0.025
0.015
u.07u
^.19^
0.125
•j.075
00671
MG/L P
0.010
0.012
0.009
0.019
0.021
0.020
0.020
0.010
0.015
0.010
0.010
0.005
0.005K
0.005K
00663
h>HOS-TOT
MG/L P
0.0 75
0.055
U.065
0.095
0.090
0.067
0.030
0.043
0.060
O.U40
0.055
0.030
0.03o
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 75/03/26
3d 04 30.0 078 31 57.0
IVY CREEK
51 7.5 W CHARLOTTES
T/S FORK RIVANN RIVER RE
RT 654 BRDG 1.5 NW OF HESSIAN HILLS
HEPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/07/15
73/08/12
73/0^/09
73/10/07
73/11/11
73/12/08
74/01/13
74/02/10
74/03/10
74/0^/19
7W05/05
74/05/24
74/06/02
74/06/17
00630 00625
TIME DEPTH NG2
-------
STOP.ET RETRIEVAL DATE 75/03/26
5113C1
38 07 lb.0 076 33 00.0
MECnUMS P-IVEK
51 7.5 FnEE UNION
1/S FOKK
KlVt* rtE
*T 601 BKJG 2 MI SSE OK F*EE UNION
lltPALES 2111204
4 0000 FEET DEPTH
OATt:
FKOM
TO
73/07/15
73/08/12
73/09/04
73/10/07
73/11/11
73/12/08
74/01/13
7<+/02/lU
74/03/10
74/04/19
74/05/05
74/OS/24
7<+/*jo/G2
74/06/17
00630 U062S
TIMF DE^TH NO^S.Ni03 TOl KJEL
OF IN- TOTAL N
DAY FEET
09
08
13
13
OB
Ol>
09
12
13
16
1^
16
15
17
SI
27
15
25
?7
50
19
SO
30
16
15
35
1^
45
M'j
0
0
>j
0
0
0
0
\.>
0
0
0
0
j
u
/L
.430
.610
.380
,57'J
.550
.470
.63U
.672
.520
.330
.276
.360
.<+6li
,3d<4
MG/L
0.
0.
0.
0.
0.
0.
0.
1.
1.
0.
0.
2.
1.
0.
320
630
370
7bU
650
400
100
500
7JO
2uo
300
BOO
400
200
00610 00671 00665
NH3-N Phos-ois PHOS-TOT
TOTAL OkTriO
M'j/L
0.
0.
0.
0 .
0 .
u .
0.
u .
0.
0 .
0 •
.-I
vj .
u .
0 .
030
037
U26
040
07B
026
020
020
035
010
020
105
390
010
MG/L
0.
0.
0.
0 *
0 .
0.
0 •
0.
0.
G .
0.
0.
0.
0.
p
130
231
230
166
154
092
066
075
195
145
138
101
100
085
MG/L P
u. 160
U.290
0.250
0.230
0.195
0.160
0.100
0.1 3u
0.250
0.145
0.178
0.140
0.145
0.145
-------
STORET RETRIEVAL OATt 75/03/26
511301
38 08 28.0 078 33 25.0
MOORMANS RlVErt
51 7.5 FREE UNION
I/S FORK RIVANN HIVE* RE
RT 601 BRiJG 1.25 MJ SbE OF FREE UNION
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/07/15
73/08/12
73/09/09
73/10/07
73/11/11
73/12/08
74/01/13
74/02/10
7^/03/10
74/04/14
74/05/05
74/05/24
74/Ot>/02
74/00/17
00630 00625
TIM£ OEPTri M02NN03 TOT KJEL
OF iM-TOTAL N
UAY FttT
10
08
13
13
08
11
09
10
13
16
14
16
15
17
09
37
35
35
35
00
26
00
40
30
25
45
?6
54
MG/L
u
0
0
0
0
•J
0
u
u
0
u
0
0
0
.126
.C76
.120
.1*7
.154
.132
.260
.200
.060
.048
.040
.060
.1^2
.084
MG/L
0.
0.
0.
1.
U.
u.
0.
0.
0.
0.
i.
u.
0.
0.
350
400
350
650
850
300
400
600
700
200
300
800
700
100K
00610 00671 00665
NH3-N PHOS-DIS PHOb-TOT
TOTAL ORTHO
MG/L
0.
0.
0 .
0.
0.
c.
0.
0.
0.
0.
0.
0.
0.
j.
015
022
168
061
079
020
016
015
020
010
120
05o
060
010
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.011
.015
.030
.014
.011
.008
.020
.005K
.005
.010
.010
.012
.010
.010
MG/L P
0.040
0.045
0.060
0.025
0.011
0.035
0.020
0.005
0.010
0.010
0.010
0.020
0.015
0.015
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
KET^IEVAL OATc 75/03/26
33 u9 15.0 078 3d 30.0
bUCK MOUNTAIN CP.LLK
51 7.5 FKEE UNION
r/s FORK KIVANN RIVEN RE
RT 6b5 ttRUG 1.5 MI £ OF FREE UNIOM
11EPALES £111204
4 0000 FEET DEPTH
Dfi Tt
FKOM
TO
73/u7/l^
73/Od/12
73/09/OV
73/10/07
73/11/11
73/12/Or!
7^/0 1/13
7^/03/10
T^/ (,it/ ly
7<*/ j5/0b
7<*/05/2<*
7<4/ub/02
7*+/ u b/ 1 7
TI"r OtPTH uOiJM^OJ TOT
0^ u- TOTAL N
UfiY FEET
10
Oa
13
13
ua
10
09
13
Ib
I1*
Ib
15
18
?.?
^d
50
<«5
<+5
37
40
50
38
35
55
40
OS
MG/L
0.270
>.• . 2 1 J
J.I 54
C.ibJ
0 .2d j
>j.3bd
'j . 4 D J
t . 1 b^*
•...132
j . 1 2 J
j.116
u . 2aa
o . Ib^i
KJtL
MG/L
0
0
0
u
u
0
0
c
0
0
1
1
u
,5bO
. 1 0 0 K
.460
.HOU
.750
.400
.200
,£*00
.100
.bOO
. * 0 J
.100
.300
00610 00671 OObbb
IMH.-J-N PnOS-UlS PHOb-TOT
TOTAL OKTHO
Mb
u
0
i1
u
u
1)
0
0
u
0
•J
0
0
/L
•
*
•
•
•
•
•
•
•
•
•
•
•
Olfc1
Ulb
023
044
042
024
012
olb
o25
035
09o
330
o2u
Mb/L
0.
0 .
-------
STORET RETRIEVAL UATE 7:>/03/26
5113F1
38 07 46.0 078 30 58.0
FISHING CHEEK
51 7.5 FREE UNION
T/S FORK RIVANN RIVER RE
RT 660 BROG 3.5 MI SW OF EARLYVILLE
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
73/07/15
73/08/12
73/09/09
73/10/07
73/11/11
73/12/08
7^/01/13
74/02/10
74/03/10
7<*/04/19
7^/05/Ob
74/05/24
74/06/02
7<*/06/17
00630 '00625
TIME Ot-PTri NU2iN03 TOT KJtL
OF iN-i'OTAL N
UAY FEET
10
09
14
14
U8
10
09
13
14
16
14
17
15
18
37
05
06
00
59
46
55
30
05
57
'50
05
56
?1
MG/L
0
J
0
0
0
-------
STORET KETKIEVAL uATrl 7b/o3/26
5113G1
3B Ob 46.0 07d 29 £?9.0
NAKED CKtEK
bl 7.5 E CHARLOTTES
T/S FORK KIVANN K1VLK rtE
bAi\K AT END OF P.LI 2 Ml Sw OF KlVANN
11EPALES 2111204
4 0000 FEET DEPTH
DATE
Fr(OM
TO
73/0 f/15
73/08/12
73/09/04
73/10/07
73/11/11
73/ 1<^/08
74/01/13
74/02/10
74/03/10
74/0 <»/ 14
7^/05/05
7<+/Ob/24
7^/ob/O^
7<*/ub/ 17
(.•0630 006?b
TIME DEPT'i U02MM03 TOT KJEL
OF M-IUlAL N
JAf Ft£l MCi/L
11
09
14
!<*
09
i\
10
13
14
17
15
17
16
18
00
30
30
30
?5
02
?5
SO
27
18
05
20
10
->!
0
0
u
u
•j
i;
U
0
0
0
J
o
w
0
. ibri
. IdO
.130
. Ibo
.250
. Ibd
.320
.2bO
.loo
.o2rt
.0^4
.Ib2
. 144
.052
MG/L
0.
0.
0.
2.
1.
0.
0.
1.
1.
0.
0.
2.
0 .
0.
520
580
345
500
000
200
^50
oOO
400
600
boo
30 J
8UO
boO
OOblO 00671 00665
NH3-N PHOS-OIS PHOS-TOT
TOTAL OPTHO
Mb/L
0.
0.
o .
0.
J .
•J .
0.
o •
0.
0 .
u .
u .
0 •
0 .
069
058
037
730
072
028
040
030
03o
042
05u
135
o7o
015
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.007
.026
.011
.013
.015
.OObK
.016
.025
.005K
.005
.010
.011
.010
.005
MG/L P
0.040
0.050
0.035
0.035
0.065
0.060
0.050
0.050
0.040
0.035
0.025
0.055
0.011
0.006
K VALUE KNO\«N TO BE
LESS THAN INDICATED
-------
SlUdA AbilUriA P00025G
Jd 03 b3.0 078 3d 02.0
KA*MliM(jTON COUiMlKY CLUB CHAKLOTT
blo39 7.b CHALOTTSVILL
T/S FK K1VANNA RIVtK
I^Y CKEEK
lltiHALES
4 0000 FEET OEPTH
DATE
FKU'-''
T.J
74/ob/lu
CH(T)-
74/JD/10
74/Ob/OH
CH(T)-
74/UM/08
74/u^/?7
CrMT)-
74/U V/27
?4/ Ul/2"*
74/11/2-,
0 < r > -
TI-
UP
•JAf
10
1^
10
14
10
14
14
;iLi-.J\hO.l fUT (\.JiiL
••j- FUl t.L !\J
"i'o/L ••i&XL
.:.c4- 3.rtuC
j.b.-j f^.100
':'.7:iJ 3.-JU
1 . ft J V; 6 . 3 J 'J
. . 0 r1- v 11. .... ij o
u ;bl 0 Ou6?l OOfciba
N.-l j-iM HnOS-Olb HhUS-
TOT*-L 0^'THO
i^O/L i-lb/L H MG/L
j.?3u It). 700 is*.
.>.i/:vji\ 9.000 10.
•; . 0 7 0 1 2 . j 0 0 12.
.•.27-j 12.0uo 12.
3. DUO 12.0 00 13.
TUT
*
000
000
5uO
UOO
000
50051
HLO*
^A
1NST
0
0
0
0
0
M13D
.yl.i
.018
.007
.013
.008
50053
CONDUIT
FLO«-MGo
MONTHLY
0.013
0.016
0.007
0.017
O.OOb
74/1l/2b IS GO
K VALUE KNOWN TO BE
LESS THAN INDICATED
------- |