U.S. ENVIRONMENTAL PROTECTION AGENCY
            NATIONAL EUTROPHICATION SURVEY
                     WORKING PAPER SERIES
        PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
                     An Associate Laboratory of the
          NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
                              and
    NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
	597.032

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                                       REPORT
                                         ON
                                  LIBERTY RESERVOIR
                            CARRLL AND BALTIM3RE COUNTIES
                                      MARYLAND
                                   EPA REGION III
                                WORKING PAPER No, 357
           WITH THE COOPERATION OF THE
    MARYLAND DEPARTMENT OF NATURAL RESOURCES,
MARYLAND DEPARTMENT OF HEALTH AND MENTAL HYGIENE,
                     AND THE
             MARYLAND NATIONAL GUARD
                   JUNE, 1975

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REPORT ON LIBERTY RESERVOIR
CARROLL AND BALTIMORE COUNTIES, MARYLAND, EPA REGION III
by
National Eutrophication Survey
Water and Land Monitoring Branch
Monitoring Appi ications Laboratory
National Environmental Research Center
Las Vegas, Nevada
and
Eutrophication Survey Branch
Pacific Northwest Environmental Research Laboratory
National Environmental Research Center
Corvallis, Oregon
Working Paper No. 357
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
June 1975

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1
CONTENTS
Page
Foreword
List of Maryland Study Lakes iv
Lake and Drainage Area Map V
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 10
V. Literature Reviewed 15
VI. Appendices 16

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11
FOREWORD
The National Eutrophication Survey was initiated in 1972
in response to an Administration commitment to investigate the
nationwide 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,
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 nonpoint 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
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

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111
planning [ 303(e)], water quality criteria/standards review
[ 303(c)], clean lakes [ 3l4(a,b)], and water quality monitoring
[ l06 and §305(b)] activities mandated by the Federal Water
Pollution Control Act Amendments of 1972.
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
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 EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENTS
The staff of the National Eutrophication Survey (Office of Research
and Development, U.S. Environmental Protection Agency) expresses sincere
appreciation to the Maryland Department of Natural Resources and the
Maryland Department of Health and Mental Hygiene for professional involve-
ment and to the Maryland National Guard for conducting the tributary
sampling phase of the Survey.
Paul W. Slunt, Chief, Water Quality Services, James T. Allison,
Natural Resources Manager, Water Quality Services, of the Maryland
Department of Natural Resources, and Earl S. Quance, Chief, Division
of Water and Sewerage, Maryland Department of Health and Mental Hygiene
provided invaluable lake documentation and counsel during the course of
the Survey.
Major General Edwin Warfield III, the Adjutant General of Maryland,
and Project Officer Colonel Bernard Feingold, who directed the volunteer
efforts of the Maryland National Guardsmen, are also gratefully acknowl-
edged for their assistance to the Survey.

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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MARYLAND
LAKE NAME COUNTY
Deep Creek Lake Garrett
Liberty Reservoir Carroll, Baltimore
Loch Raven Reservoir Baltimore
Johnson Pond Wicomico

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Map Location
LIBERTY RESERVOIR
®Tributary Sampling Site
x Lake Sampling Site
, Sewage Treatment Facility
Kin.

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LIBERTY RESERVOIR
STORET NO. 2403
I. CONCLUSIONS
A. Trophic Condition:
Based upon field observations and survey data, Liberty
Reservoir is considered early mesotrophic. Survey limnolo-
gists reported that the water was clear, appearing light green
in color, with no visible aquatic plants and an algal bloom
occurring only in the spring.
Chlorophyll a levels ranged from a low of 3.0 micrograms
per liter in the spring to a high of 14.4 micrograms per liter
in the fall with a mean of 6.3 micrograms per liter.
The lake was characterized by high concentrations of
total phosphorus.
B. Rate-Limiting Nutrient:
Algal assay results indicate that Liberty Reservoir was
limited by available phosphorus levels. Spikes with phosphorus,
or nitrogen and phosphorus simultaneously result in increases in
assay yield. Additions of nitrogen alone did not stimulate
a growth response. The ratio of available nitrogen to phos-
phorus in sampled waters substantiates phosphorus limitation.

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2
C. Nutrient Controllabiliy:
1. Point sources -
The nutrient loading rate of 0.37 g/m 2 /yr to Liberty
Reservoir is one-third of the “perniissible” level proposed
by Vollenweider (in press). Point sources contribute 4.0%
of the total phosphorus loading. Total elimination of
known point sources could result in maintaining the present
high quality of the water.
2. Nonpoint sources -
The total phosphorus load from nonpoint sources
accounted for 96.0% of the loading reaching Liberty
Reservoir; major tributaries contributed 73.0%, while
minor tributaries and immediate drainage contributed
18.4%. According to the State of Maryland Sanitary Survey,
1970, agricultural pollution was most prevalent. Also
observed contributing to the loading of the reservoir
were surface oil storage, surface scavenger dumping,
incorrectly located storm drains, and numerous types
of dumps.

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3
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
Lake and drainage basin characteristics are itemized below.
Lake surface area and volume were obtained from “Reservoirs in
the United States.” Mean depth was determined by dividing the
volume by the lake surface area. Tributary data were provided
by the Maryland District Office of the US. Geological Survey
(USGS) (outlet drainage area includes the lake surface area).
The outlet data for normalized flow and daily and monthly flows
for time of sampling were dividied into spillage and diversion
segments. The spillage and diversions were combined into total
outflow. Mean hydraulic retention time was obtained by dividing
the lake volume by the mean flow of the outlet.
Precipitation values are estimated by methods as outlined
in National Eutrophication Survey (NES) Working Paper No. 175.
A table of metric/English conversions is included as Appendix D.
A. Lake Morphometry:
1. Surface area: 12.59 km 2 .
2. Mean depth: 12.7 meters.
3. Maximum depth: unknown.
4. Volume: 15.926 x 106 m 3 .
5. Mean hydraulic retention time: 40 days.

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4
B. Tributary and Outlet:
(See Appendix A for flow data)
1. TributarIes -
Drainage Mean flow
Name area(km I ( m 3 /sec )
A(1) N. Branch Patapsco River 146.6 1.7
B(1) Little Morgan Run 22.5 0.3
C(l) Morgan Run 75.4 0.8
D(l) Middle Run 21.9 0.3
E(l) Beaver Run 37.6 0.4
Minor tributaries &
immediate drainage - 108.1 1.4
Totals 412.1 4.9
2. Outlet -
A(1) N. Branch Patapsco River 424.8 4.6
C. Precipitation:
1. Year of sampling: 114.2 centimeters.
2. Mean annual: 106.3 centimeters.

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5
III. LAKE WATER QUALITY SUMMARY
Liberty 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 four stations on the lake and from a number of 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, 18.9-liter depth-integrated samples were coniposited for algal
assays. Maximum depths sampled were 41.1 meters at station 1,
7.6 meters at station 2, 16.2 meters at station 3, and 7.6 meters
at station 4. For a more detailed explanation of National Eutrophi-
cation Survey methods, see NES Working Paper No. 175.
The results obtained are presented in full in Appendix B and
are summarized in III A for waters at the surface and at the maxi-
mum depth for each site. Resuits 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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A.
SUMMARY
OF
PHYSICAL AND
CHEMICAL CHARACTERISTICS
FOR
LIBERTY RESERVOIR
STORET CODE 2403
1ST
SAMPLING ( 4/11/73)
2ND SAMPLING
( 7/20/73) 3RD SAMPLING (10/ 1/73)
4 SITES 4 SITES 4 SITES
PARAMETER
RANGE
MEAN
MEDIAN
RANGE
MEAN
MEDIAN
RANGE
MEAN
MEDIAN
TEMP (C)
7.0
— 10.8
9.5
9.8
5.8
— 27.9
16.8
15.8
6.0
— 21.8
15.9
19.4
DISS OXY (MG/L)
8.2
— 11.6
10.6
10.4
0.2
— 13.0
5.7
6.9
0.1
— 9.4
4.6
5.3
CNDCTVY (MCROMO)
98.
— 135.
118.
115.
68.
— 143.
96.
93.
74.
— 139.
103.
103.
PH (STAND UNITS)
6.3
— 7.0
6.7
6.6
6.6
— 9.1
7.5
7.1
6.3
— 8.1
6.8
6.7
TOT ALK (MG/I)
17.
— 29.
25.
26.
19.
— 42.
26.
27.
21.
— 60.
33.
30.
TOT P (MG/I)
0.012
— 0.077
0.032
0.026
0.009
— 0.047
0.017
0.013
0.009
— 0.129
0.031
0.020
ORTHO P (MG/L)
0.004
— 0.023
0.009
0.007
0.004
— 0.009
0.006
0.006
0.004
— 0.011
0.006
0.005
N02.N03 (MG/U
1.500
— 2.400
1.974
1.900
0.870
— 2.300
1.768
1.750
0.340
— 1.900
1.375
1.465
AMMONIA (MG/I)
0.030
— 0.150
0.080
0.070
0.040
— 0.810
0.128
0.070
0.030
— 1.240
0.256
0.085
KJEL N (MG/L)
0.300
— 0.900
0.470
0.500
0.200
— 1.000
0.555
0.600
0.200
— 2.200
0.759
0.700
INORG N (MG/I)
1.540
— 2.550
2.054
1.960
1.610
— 2.400
1.896
1.805
1.190
— 1.960
1.631
1.590
TOTAL N (MG/I)
1.800
— 3.300
2.443
2.200
1.800
— 3.000
2.323
2.300
1.670
— 2.540
2.134
2.090
CHLRPYL A (UG/L)
2.8
— 5.8
4.3
4.3
5.1
— 10.4
7.7
7.7
3.7
— 14.4
6.9
4.8
SECCHI (METERS)
0.5
— 1.4
0.8
0.7
3.0
— 5.5
3.8
3.4
1.7
— 4.6
2.9
2.6

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7
Algal
Dominant Units
Genera per ml
1. Flagellates 765
2. Melosira 325
3. Cryptononas 314
4 Asterionella 42
5• Navicula 31
Other genera 51
Total 1,528
Fracilaria 1,6 3
2. Melosira 810
3 Synedra 476
4. Cryptomonas 1 13
5 Stephanodiscus 119
Other genera 240
Total 3,431
1. Blue-green filament 1,421
2. Fragilaria 863
3. Cyclotella 360
4 Melosira 3 2
5 Cryptomonas 198
Other genera 684
Total 3,844
B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
04/11/73
07/20/ 73
10/01/73

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2. Chlorophyfl -
Sampling Station Chlorophyll a
Date Number ( micrograms/Titer )
04/11/73 1 5.7
2 3.0
3 5.8
4 2.8
07/20/73 1 9.1
2 5.1
3 6.3
4 10.4
10/01/73 1 3.7
2 4.2
3 5.4
4 14.4

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C. Limiting Nutrient Study:
1. Autociaved, filtered, and nutrient spiked —
Ortho P Inorganic N
____________ Conc. (mg/i) Conc. (mg/i )
0.025 0.306
0.075 0.306
0.075 1.306
0.025 1.306
Spike (ma/i )
Control
0.05 p
0.05 p + 1.0 N
1.00 N
Maximum yield
( mg/i-dry wt. )
2.2
23.8
24.9
1.5
2. Discussion —
The results of the algal assay with Selenastrum capri-
cornutum indicate that the potential for primary production
in Liberty Reservoir was high at the time of sampling. In-
creased growth of the test alga in response to an addition
of orthophosphorus indicates that the lake was phosphorus
limited when sampled. Spikes with nitrogen and phosphorus
simultaneously resulted in maximum yield. The addition
of nitrogen alone did not stimulate growth beyond the
control yield.
The total available nitrogen to dissolved phosphorus
ratio of 244:1 further indicates phosphorus limitation.

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10
IV. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the Maryland
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 month of February when two samples were col-
lected. Sampling was begun in May 1973, and was completed in
May 1974.
Through an interagency agreement, stream flow estimates for
the year of sampling and a “normalized” or average year were pro-
vided by the Maryland 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 the USGS computer program
for calculating stream loadings. Nutrient loads indicated for
tributaries are those measured minus known point source loads,
if any.
Nutrient loading for unsampled “minor tributaries and
immediate drainage” (“ZZ” of USGS) were estimated by using
the mean of the nutrient loads, in kg/km 2 /year, at stations
B(l) and C(l) and multiplying the means by the ZZ area in km 2 .
The operator of the Finksburg A.T. & T., Montrose Girls
School, and Black and Decker-#2 wastewater treatment plants pro-
vided monthly effluent samples and corresponding flow data.

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A. Waste Sources:
1. Known municipal -
Population Me n Flow Receiving
Name Served * Treatment ( m /d x io ) Water
Finksburg 7 Extended O.OO R r ing Run Stream,
A.T. & T. Aeration N. Branch Patapsco
River
Montrose 300 Trickling 0.076 Unnamed stream,
Girls School filter u. Branch Patapsco
River
2. Known industrial -
Meqn Flow Receiving
Name Product Treatment ( m fd x iO ) Water
Black and Effluents Activated 1.737 Deep Run Creek,
Decker-#2 from sludge N. Branch Patapsco
washing River
operations
*provjded by the State of Marylanc .
**Estimated at 0.38 m 3 /capita/day.

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B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
% of
Source kg P/yr total
a. Tributaries (nonpoint load) —
A(2) N. Branch Patapsco River 2,210 47.1
B(l) Little Morgan Run 225 4.8
C(l) Morgan Run 460 9.8
D(1) Middle Run 185 3.9
E(l) Beaver Run 345 7.4
b. Minor tributaries & immediate
drainage (nonpoint load) - 864 18.4
c. Known municipal STP’s -
Finksburg A.T. & T. <1 <0.1
Montrose Girls School 145 3.1
d. Septic tanks* 5 0.1
e. Known industrial -
Black and Decker -1/2 35 0.8
f. Direct precipitation** - 220 4.7
Total 4,695 100.0
2. Outputs - A(1) N. Branch Patapsco R. 2,215
3. Net annual P accumulation - 2,480 kg.
*Estimate based upon 27 lakeside dwelling.
**Estimated (see NES Working Paper No. 175).

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C. Annual Total Nitrogen Loading - Average Year:
1 . Inputs —
% of
Source kg N/yr total
a. Tributaries (nonpoint load) -
A(2) N. Branch Patapsco River 149,545 35.2
8(1) Little Morgan Run 20,660 4 Q
C(1) Morgan Run 6d,410 15.1
D(l) Middle Run 23,765 5.6
E(l) Beaver Run 39,360 9.3
b. Minor tributaries & immediate
drainage (nonpoint load) - 95,975 22.6
c. Known municipal SIP’s —
Finksburg A.I. & 1. 25 <0.1
Montrose Girls School 345 0.1
d. Septic tanks * — 10 <0.1
e. Known industrial —
Black and Decker -#2 17,695
f. Direct precipitation** - 13,590 3.1
Total 425,380 100.0
2. Outputs - A(1) N. Branch Patapsco R. 232,840
3. Net annual N accumulatior - 192,540 kq,
*Estimated based upon 27 lakeside dwellinas.
**Estimated (see NES Working Paper No. 175).

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D. Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
Tributary kg P/km 2 /yr kg N/km 2 /yr
A(2) N. Branch Patapsco River 16 1,020
B(1) Little Morgan Run 10 918
C(l) Morgan Run 6 854
0(1) Middle Run 8 1,085
E(l) Beaver Run 9 1,047
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenwelder (in press).
Essentially, his “dangerous” rate is the rate at which the
receivingwaters would become eutrophic or remain eutrophic; his
“permissible” rate is that which would result in the receiving
water remaining oligotrophic or becoming oligotrophic if mor-
phometry permitted. A mesotrophic rate would be considered one
between “dangerous” and “permissible”.
Total Yearly
Phosphorus Loading Rate
(grams/m 2 /yea r)
Estimated loading rate for Liberty Reservoir 0.37
Vollenweider’s “dangerous” or eutrophic rate 2.03
Vollenweider’s “permissible” or oligotrophic rate 1.01

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15
V. LITERATURE REVIEWED
Maryland Department of Health. 1970. “Liberty Reservoir
Watershed Sanitary Survey.”
U.S. Environmental Protection Agency. 1975. “National
Eutrophication Survey Methods 1973-1976.” Working
Paper No. 175. NERC, Las Vegas, NV and PNERL,
Corvallis, OR.
U.S. Geological Survey. 1966. “Reservoirs of the United
States.” USGS Paper No. 1838.
Vollenweider, Richard A. (in press). “Input-Output Models.”
Schweiz Z. Hydrol.

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VI. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA

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TRIBUTARY FLOW INFORMATION FOR IIARYLAND 9/16/75
LAKE CODE 2403 LIBERTY RESERVOIR
TOTAL DRAINAGE AREA OF LAKE SQ KM) 424.8
SUB—DRAINAGE NORMALIZED FLOWS(CMS)
TRIBUTARY AREA(SQ KM) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN
2403A1 424.8 0.37 1.27 2.01 1.81 1.08 0.57 1.05 0.57 0.31 0.22 0.37 0.45 0.84
2403A2 146.6 1.93 2.35 2.69 2.29 2.04 1.59 1.36 1.25 0.91 0.91 1.30 1.53 1.67
24 03B1 22.5 0.28 0.34 0.40 0.34 0.31 0.25 0.22 0.20 0.16 0.15 0.21 0.24 0.26
2403C1 75.4 0.96 1.25 1.44 1.22 1.02 0.76 0.62 0.57 0.37 0.37 0.59 0.71 0.82
240301 21.9 0.31 0.40 0.42 0.37 0.34 0.26 0.22 0.21 0.15 0.15 0.22 0.25 0.27
2403E1 37.6 0.51 0.65 0.76 0.62 0.54 0.40 0.34 0.31 0.20 0.20 0.31 0.37 0.43
2403F1 424.8 3.43 3.14 3.23 3.40 3.68 4.25 4.22 4.08 3.99 3.68 3.77 3.62 3.71
2403ZZ 121.0 1.56 1.93 2.21 1.87 1.67 1.30 1.13 1.02 0.74 0.74 1.08 1.25 1.37
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 424.8 TOTAL FLOW IN = 58.11
SUM OF SUB—DRAINAGE AREAS 424.8 TOTAL FLOW OUT = 54.56
NOTE ° ° SEE WRITE—UP ON LIBERTY RESERVOIR
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
2403A 1 5 73 4.62 12 1.42
6 73 2.27 9 2.07
7 73 0.31 14 0.03
8 73 0.03 11 0.03
9 73 0.0 8 0.0
10 73 0.0 6 0.0
11 73 0.0 11 0.0 15 0.0
1 74 0.0 12 0.0
2 74 0.0 9 0.0 23 0.0
3 74 0.0 9 0.0
4 74 0.0 13 0.0
2403A2 5 73 3.71 12 2.55
6 73 2.83 9 3.09
7 73 1.56 14 1.36
8 73 1.36 11 1.16
9 73 1.33 8 0.82
10 73 1.02 6 0.96
11 73 0.82 11 0.68
1 74 2.69 12 3.88
2 74 1.61 9 1.61 23 1.61
3 74 1.93 9 1.39
4 74 3.34 13 5.92

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TRIBUTARY FLOW INFORMATION FOR MARYLAND 9/16/75
LAKE CODE 2403 LIBERTY RESERVOIR
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
2403B1 5 73 0.51 12 0.37
6 73 0.40 9 0.42
7 73 0.25 14 0.22
8 73 0.22 11 0.19
9 73 0.22 8 0.14
10 73 0.17 6 0.16
11 73 0.14 11 0.12
1 74 0.40 12 0.54
2 74 0.25 9 0.25 23 0.25
3 74 0.28 9 0.22
4 74 0.45 13 0.74
2403C1 5 73 2.21 12 1.39
6 73 1.59 9 1.70
7 73 0.74 14 0.62
8 73 0.62 11 0.51
9 73 0.62 8 0.34
10 73 0.45 6 0.40
11 73 0.34 11 0.27
1 74 1.47 12 2.35
2 74 0.79 9 0.79 23 0.79
3 74 0.96 9 0.65
4 74 1.98 13 .3.96
240301 5 73 0.59 12 0.42
6 73 0.45 9 0,51
7 73 0.25 14 0.22
8 73 0.22 11 0.19
9 73 0.22 8 0.14
10 73 0.17 6 0.16
11 73 0.14 11 0.11
1 74 0.42 12 0.62
2 74 0.26 9 0.26 23 0.26
3 74 0.31 9 0.23
4 74 0.54 13 0.93
2403E1 5 73 1.13 12 0.74
6 73 0.82 9 0.91
7 73 0.40 14 0.34
8 73 0.34 11 0.27
9 73 0.31 8 0.18
10 73 0.24 6 0.22
11 73 0.18 11 0.14
1 74 0.76 12 1.22
2 74 0.40 9 0.40 23 0.40
3 74 0.51 9 0.34
4 74 1.02 13 1.98

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TRIBUTARY FLOW INFORMATION FOR MARYLAND 9/16/75
LA cE CODE 2403 LIBERTY RESERvoIR
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRI 3UTARY MONTH YEAR MEAN FLOW DAY FLOW DAY FLOW DAY FLOW
2403F1 5 73 6.00 12 6.77
6 73 5.75 9 6.74
7 73 5.32 14 5.55
8 73 5.38 11 5.66
9 73 7.28 8 7.22
10 73 6.88 6 6.97
11 73 6.09 11 4.36 15 5.41
1 74 6.03 12 5.86
2 74 5.97 9 5.95 23 5.86
3 74 5.97 9 5.75
4 74 6.31 13 5.95
240JLZ 5 73 3.06 12 2.10
6 73 2.32 9 2.55
7 73 1.27 14 1.13
8 73 1.13 11 0.96
9 73 1.10 8 0.68
10 73 0.85 6 0.79
11 73 0.68 11 0.57
1 74 2.21 12 3.20
2 74 1.33 9 1.33 23 1.33
3 74 1.59 9 1.13
4 74 2.69 13 4.81

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APPENDIX B
PHYSICAL and CHEMICAL DATA

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STOi ET RETRIEVAL DATE 15/09/16
240301
39 22 50.0 076 53 36.0
LIBERTY RESERVOIR
24013 MARYLAND
I1EPALES 2111202
3 0124 FEET DEPTH
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 7 ALK 1*43—N TOT KJEI N026N03 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO] TOTAL N N—TOTAL ORTHO
TO DAY FEET CENT MG/L INCHES MICROMBO SU HG/I MG/I MG/I MG/I MG/I P
73/04/11 10 50 0000 9.2 54 115 6.80 25 0.060 0.500 1.700 0.007
10 50 0006 9.2 11.6 113 6.90 24 0.030 0.300 1.700 0.005
10 50 0015 9.2 11.4 112 6.60 23 0.030 0.300 1.600 0.006
10 50 0025 9.1 11.6 112 6.80 24 0.030 0.300 1.700 0.005
10 50 0040 8.9 11.5 112 6.80 25 0.030 0.300 1.600 0.005
10 50 0065 7.5 11.2 113 6.90 26 0.040 0.300 1.500 0.005
10 50 0080 7.2 11.1 115 6.90 26 0.050 0.300 1.500 0.005
10 50 0100 7.1 11.3 115 6.60 26 0.050 0.300 1.500 0.004
10 50 0120 7.0 11.0 115 7.00 26 0.060 0.500 1.500 0.011
73/07/20 16 00 0000 26.7 8.2 216 101 22 0.110 0.600 1.500 0.008
16 00 0010 26.6 104
16 00 0015 25.6 9.6 103 22 0.070 0.200 1.600 0.005
16 00 0020 20.2 13.0 93 8.80 19 0.070 0.200 1.700 0.006
16 00 0025 15.8 83
16 00 0030 13.1 79
16 00 0040 9.3 72
16 00 0050 7.7 7.4 70 20 0.040 0.200 1.800 0.006
16 00 0060 7.1 69
16 00 0070 6.8 69
16 00 0080 6.4 7.8 68 20 0.040 0.200K 1.700 0.004
16 00 0090 6.1 68
16 00 0100 6.0 68
16 00 0110 5.9 5.5 68 6.70 23 0.050 0.200K 1.700 0.006
16 00 0120 5.8 1.6 69
16 00 0130 5.8 1.0K 71
16 00 0135 5.8 0.2 86 6.80 42 0.810 1.000 0.870 0.007
73/10/01 14 05 0000 21.8 8.0 180 102 7.50 36 0.070 0.500 1.470 0.007
14 05 0020 21.7 8.0 104 6.80 26 0.050 0.200K 1.470 0.006
14 05 0030 17.0 2.0 94 6.50 25 0.060 0.200K 1.900 0.005
14 05 0040 11.5 1.8 82 6.40 22 0.030 0.200K 1.740 0.005
1’. 05 0050 8.7 4.0 76 6.40 21 0.030 0.200 1.810 0.00S
14 05 0060 7.4 5.2 74 6.40 23 0.050 0.200 1.880 0.005
14 05 0080 6.6 5.6 74 6.30 24 0.030 0.300 1.830 0.005
14 05 0100 6.1 1.2 74 6.30 27 0.090 0.300 1.530 0.006
14 05 0128 6.0 0.2 94 6.40 50 1.130 1.300 0.410 0.006
. A ’iI K’.QjP 10
L T -lLN 1r)IC-TEU

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STORET RETRIEVAL DATE 75/09/16
240301
39 22 50.0 076 53 36.0
LIaERTY RESERVOIR
24013 MARYLAND
2111202
0124 FEET
00665
DEPTH PHOS—TOT
FEET P4G/L P
73/04/11 10 50 0000
10 50 0006
10 50 0015
10 50 0025
10 50 0040
10 50 0065
10 50 0080
10 50 0100
10 50 0120
73/07/20 16 00 0000
16 00 0015
16 00 0020
16 00 0050
16 00 0080
16 00 0110
16 00 0135
73/10/01 14 05 0000
14 05 0020
14 05 0030
14 05 0040
14 05 0050
14 05 0060
14 05 0080
1’. 05 0100
14 05 0128
0.0 16
0.0 16
0.0 17
0.0 16
0.016
0.0 12
0.0 14
0.013
0.015
0.0 13
0.010
0.0 12
0.009
0.009
0.009
0.0 18
0.0 11
0.011
0.0 10
0.009
0.010
0.009
0.009
0.011
0.021
32217
CHLRPHYL
A
UG/L
DATE
FROM
TO
T I ME
OF
DAY
1 1EPALES
3
DEPTH
5.7
9.1
3.7

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STORET RETRIEVAL DATE 75/09/16
240302
39 26 12.0 076 56 08.0
LIBERTY RESERVOIR
24013 MARYLAND
11EPALES 2111202
3 0028 FEET DEPTH
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH 1 ALK N113—N TOT KJEL N02&N03 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTHO
TO DAY FEET CENT MG/L INCHES MICROMMO SU MG/L MG/L MG/L MG/I MG/I P
73/04/11 11 35 0000 9.9 18 100 6.90 17 0.070 0.400 1.900 0.006
11 35 0006 9.9 10.4 98 6.70 21 0.060 0.300 1.900 0.006
11 35 0015 9.8 10.4 98 6.60 20 0.060 0.300 1.900 0.006
11 35 0024 9.2 10.4 100 6.40 20 0.070 0.400 1.800 0.006
73/07/21 11 40 0000 27.2 144 101 7.80 22 0.060 0.800 1.700 0.009
11 40 0005 27.1 8.8 100 7.60 21 0.040 0.600 1.700 0.006
11 40 0015 25.4 6.6 91 7.10 19 0.060 0.500 1.700 0.005
11 40 0025 15.8 0.2 81 6.60 27 0.160 0.600 1.500 0.005
73/10/01 15 00 0000 21.6 8.2 84 99 6.70 26 0.050 0.700 1.450 0.006
15 00 0015 21.5 8.4 98 6.70 26 0.060 0.500 1.460 0.005
15 00 0023 21.0 8.0 97 6.70 26 0.060 0.600 1.480 0.005

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STORET RETRIEVAL DAlE 75/09/16
240302
39 26 12.0 076 56 08.0
LIBERTY RESERVOIR
24013 MARYLAND
1 IEPALES
3
2111202
0028 FEET DEPTH
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
73/04/11 11 35 0000
11 35 0006
11 35 0015
11 35 0024
73/07/21 11 40 0000
11 40 0005
11 40 0015
11 40 0025
73/10/01 15 00 0000
15 00 0015
15 00 0023
0.0 26
0.027
0.025
0.033
0.011
0.0 12
0.019
0.0 34
0.012
0.0 15
0.051
00665
32217
PHOS-TOT
CHLRPHYL
A
MG/L P
UG/L
3.0
5.1
4.2

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STORET RETRIEVAL DATE 7S/09/16
240303
39 27 00.0 076 52 38.0
LIBERTY RESERVOIR
24013 MARYLAND
1 IEPALES
3
2111202
0054 FEET
DEPT H
00010
00300
00077
00094
00400
00410
00610
00625
00630
00671
DATE
TIME DEPTH
WATER
DO
TRANSP
CNDUCTVY
PH
1 ALK
NH3—N
TOT KJEI.
NOZ NO3
PHOS—DIS
FROM
OF
TEMP
SECCHI
FIELD
CACO3
TOTAL
N
N—TOTAL
ORTHO
TO
DAY
FEET
CENT
MG/L
INCHES
MICROMHO
SU
MG/L
MG/L
MG/L
M6/L
MG/L P
73/04/11
12
00 0000
10.8
36
115
7.00
27
0.100
0.600
2.400
0.008
12
00 0006
10.8
10.4
135
6.40
26
0.100
0.600
2.400
0.008
12
00 0015
10.7
9.3
130
6.40
25
0.100
0.500
2.400
0.012
12
00 0025
10.7
10.3
130
6.50
26
0.100
0.600
2.400
0.008
12
00 0035
10.7
11.3
132
6.50
26
0.090
0.500
2.400
0.008
12
00 0050
8.0
8.2
128
6.50
26
0.140
0.500
2.200
0.011
73/07/20
17
15 0000
27.9
8.5
120
125
8.40
28
0.070
0.800
1.900
0.005
17
15 0005
27.4
125
8.40
17
15 0010
26.8
9.3
126
8.40
27
0.050
0.400
1.900
0.006
17
15 0015
25.2
6.9
134
6.80
32
0.130
0.600
2.100
0.008
17
15 0020
21.4
126
6.80
17
15 0025
15.6
1.0
100
6.70
28
0.070
0.400
2.300
0.004
17
15 0030
13.4
92
6.80
17
15 0040
9.5
85
7.10
17
15 0050
8.0
0.7
93
7.10
35
0.310
0.900
1.800
0.008
73/10/01
15
25 0000
21.8
8.4
120
115
7.70
30
0.100
0.700
1.360
0.005
15
25 0015
21.3
7.0
118
7.20
30
0.140
0.700
1.230
0.004
15
25 0025
20.2
3.2
126
6.90
34
0.380
1.000
1.220
0.004
15
25 0030
18.7
1.2
126
6.80
39
0.470
1.200
1.170
0.004
15
25 0035
14.3
0.1
105
6.50
35
0.240
0.900
1.630
0.005
15
25 0045
10.2
0.2
112
6.50
51
0.820
1.500
0.850
0.006
15
25 0053
9.2
0.4
114
6.70
60
1.240
2.200
0.340
0.005

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STORET f ETRIEVAL DATE 75/09/16
240 303
39 27 00.0 076 52 38.0
LIBERTY RESERVOIR
24013 MARYLAND
11EPALES 2111202
3 0054 FEET DEPTH
00665 32217
DATE TIME DEPTH PHOS—TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/04/11 12 00 0000 0.040 5.8
12 00 0006 0.028
12 00 0015 0.035
12 00 0025 0.038
12 00 0035 0.040
12 00 0050 0.015
73/07/20 17 15 0000 0.011 6.3
17 15 0010 0.013
17 15 0015 0.020
17 15 0025 0.014
17 15 0050 0.021
73/10/01 15 25 0000 0.019 5.4
15 25 0015 0.023
15 25 0025 0.027
15 25 0030 0.031
15 25 0035 0.022
IS 25 0045 0.055
15 25 0053 0.094

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STORET RETRIEVAL DATE 75/09/16
240304
39 28 01.0 076 53 15.0
LIBERTY RESERVOIR
24013 MARYLAND
1 IEPALES 2111202
3 0029 FEET DEPTH
00010 00300 00077 00094 00400 00410 00610 00625 00630 00671
DATE TIME DEPTH WATER DO TRANSP CNDUCTVY PH T ALK NH3—N TOT KJEL N02&N03 PHOS—DIS
FROM OF TEMP SECCHI FIELD CACO3 TOTAL N N—TOTAL ORTHO
TO DAY FEET CENT MG/L INCHES MICRONHO SU MG/L MG/L MG/L MG/L MG/L P
73/04/11 12 30 0000 10.8 20 130 6.30 28 0.150 0.900 2.400 0.021
12 30 0006 10.8 10.0 130 6.40 29 0.140 0.700 2.300 0.018
12 30 0015 10.6 9.8 130 6.80 29 0.150 0.700 2.300 0.017
12 30 0025 10.7 9.8 132 6.40 28 0.140 0.700 2.400 0.023
73/07/21 12 15 0000 27.6 120 131 9.10 29 0.040 0.800 1.800 0.005
12 iS 0005 27.1 10.2 131 8.90 27 0.040 0.600 1.800 0.007
12 15 0015 24.9 7.0 138 7.30 31 0.140 0.700 2.100 0.006
12 15 0023 18.8 1.2 143 6.90 34 0.200 0.800 2.200 0.009
73/10/01 17 05 0000 21.5 9.4 66 114 8.10 33 0.080 1.300 1.110 0.011
17 05 0015 21.0 6.1 118 7.20 37 0.180 1.200 1.220 0.007
17 05 0025 20.2 5.4 139 6.90 39 0.280 0.800 1.680 0.010

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STORET RETRIEVAL DATE 75/09/16
240304
39 28 01.0 076 53 15.0
LiBERTY RESERVOIR
24013 MARYLAND
1 1EPALES
3
2111202
0029 FEET
DEPTH
73/04/11 12 30 0000
12 30 0006
12 30 0015
12 30 0025
73/07/21 12 15 0000
12 15 0005
12 15 0015
12 15 0023
73/10/01 17 05 0000
17 05 0015
17 05 0025
0.077
0.070
0.076
0.068
0.016
0.020
0.030
0.047
0.0 35
0.058
0.129
DATE
FROM
TO
TIME
OF
DAY
00665 32217
DEPTH PHOS—TOT CHLRPHYL
A
FEET MG/L P UG/L
2.8
10.4
14.4

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APPENDIX C
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA

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STORET RETRIEVAL DATE 75/09/16
2403A1
39 21 55.0 076 53 10.0
N dRANCH PATAPSCO RIVER
24023 7.5 SYIcESVILLE
0/LIBERTY RESERVOIR
DG ON SEC RD 1.5 MI NE OF MARRIOTSVILE
11E ALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2 NO3 TOT KJEL Nt-13—N PHOS-DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET P4G/L MG/L MG/L MG/L P MG/L P
73/05/12 14 40 1.820 0.790 0.046 0.006 0.020
73/06/09 12 30 1.700 0.350 0.030 0.005K 0.015
73/07/14 0.780 0.250 0.035 0.005K 0.010
73/08/11 11 50 0.018 0.300 0.018 0.013 0.020
7j/09/08 11 50 0.036 0.410 0.024 0.005K 0.035
73/10/06 12 00 0.039 0.110 0.021 0.005K 0.035
73/11/11 LI 10 0.056 0.250 0.02u 0.012 0.035
74/01/12 10 40 0.104 0.600 0.036 0.008 0.015
74/02/09 12 54 0.910 0.100K 0.005K 0.010 0.010
74/0 /23 11 05 2.900 0.800 0.010 0.010 0.015
74/03/09 11 10 0.060 0.200 0.005K 0.005K 0.040
74/04/13 11 15 0.052 0.200 0.020 0.00 5K 0.020
74/05/11 11 15 0.044 0.200 0.015 0.005K 0.015
K VALUE KNOwN 10 bE
LESS THAN INOICMTEO

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STORET RETRIEVAL DArE 75/09/16
240342
39 31 10.0 0Th 52 40.0
N 8 ANC 1 PATAPSCO RIVEW
24 7.5 ESTM1NSTER
I/LIbERTY RESERVOIR
BROG ON SEC RD NEAW LAWNOALE
1 1EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L P
73/05/12 12 00 2.800 0.100K 0.021 0.007 0.020
73/06/09 11 00 2.800 0.100K 0.017 0.013 0.045
73/07/14 09 15 2.800 0.440 0.017 0.005K 0.015
73/08/11 09 50 2.500 0.380 0.016 0.016 0.025
73/09/08 10 10 2.400 0.340 0.016 0.011 0.035
73/10/06 09 40 2.200 0.100K 0.018 0.019 0.035
73/11/11 10 05 2.700 0.300 0.020 0.036 0.045
74/01/12 09 20 2.500 0.700 0.116 0.056 0.120
74/0 /09 10 7 3.900 0.100K 0.015 0.060 0.075
74/02/23 10 00 0.088 0.300 0.020 0.005K 0.030
74/03/09 10 00 2.900 0.300 0.010 0.010 0.040
74/04/13 09 55 2.800 0.300 0.020 0.025 0.045
74/05/11 10 00 2.500 0.600 0.4 . 165 0.005 0.015
K VI LUE KNOWN TO BE
LESS THAN 1’ DICATED

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STORET RETRIEVAL DATE 75/09/16
2403t31
39 25 40.0 076 57 40.0
LITTLE MORGAN RUN
24 7.5 FINKSBURG
T/LIbERTY RESERVOIR
Br DG ON SEC RD .75 MI N OF JOHNSVILLE
I1EPALES 2111204
4 0000 FEET DEPTI-4
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL Nr13—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L .‘
73/05/12 14 05 2.200 0.350 0.030 0.005K 0.015
73/06/09 12 05 2.2u 0 0.100K 0.012 0.010 0.040
73/07/14 10 45 2.200 0.130 0.017 (a.005K 0.015
73/08/11 11 00 2.000 0.690 0.(a23 0.017 0.035
73/09/08 11 20 1.700 0.620 0.029 0.006 0.030
73/10/06 11 15 1.940 0.580 0.042 0.008 0.020
73/11/11 10 50 2.100 0.2 0i) 0.025 0.021 0.060
74/01/1 10 15 2.200 0.400 0.024 0.012 0.025
74/02/0’ 12 24 2.920 0.100K 0.005K 0.015 0.015
74/02/23 10 50 2.500 0.100K 0.010 0.005K 0.015
74/03/09 10 50 2.400 0.200 0.005 0.005 0.032
74/05/11 11 00 2.180 0.600 0.055 0.005 0.010
K VALUE KNOWN TO dE
LESS THAN INDICATED

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STORET RETRIEVAL DATE 75/09/16
2403C1
39 27 07.0 076 57 20.0
MORGAN RUN
24 7.5 F1NKSBU G
1/LIbERTY RESERVO1i
RDG ON SEC RD 1.5 M L SW OF GAMBER
1 1EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH NO2 .NO3 TOT KJEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N—TOTAL N TOTAL O THO
TO DAY FEET MG/L MG/L M(,/L HG/L P MG/L P
73/05/12 13 55 2.200 0.480 0.031 0.005K 0.015
73/06/09 11 50 2.200 0.460 0.017 0.005K 0.020
73/07/14 10 35 2.300 0.280 0.011 0.005K 0.010
73/08/li 10 50 2.200 0.100K 0.009 0.010 0.020
73/09/08 11 00 1.790 0.100K 0.009 0.005K 0.010
73/10/06 10 45 1.900 0.100K 0.023 0.006 0.010
73/11/11 10 45 2.200 0.100K 0.020 0.007 0.025
74/01/12 10 12 1.900 0.300 0.036 0.012 0.030
74/02/09 12 02 2.800 0. 100K 0.005 0.010 0.010
74/02/23 10 40 2.300 0.800 0.040 0.005K 0.010
74/03/09 1 ) 45 2.200 0.300 0.005 0.005K 0.035
74/05/11 10 50 2.100 0.350 0.025 0.005K 0.005K
K VALUE KNOWN TO B
LESS THAN INOICMIEU

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STORET RETNIEVAL DATE 75/09/lb
240301
39 27 44.0 076 54 30.0
MIDDLE NUN
24 7.5 FINKSBUNG
T/LIBENTY RESEN OIR
äNOG ON SEC R i) l.S M l E OF GAM8E.
I1EPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TIME DEPTH N02&N03 TOT KJEL Nr$3—N PHOSDIS PHOS-TOT
FROM OF N—TOTAL N TOTAL ORTHO
TO DAY FLCr M(,/L MG/L MG/L MG/I P MG/L P
73/05/12 13 30 2.300 0.480 0.026 0.00 5K 0.020
73/06/09 11 35 2.300 0.210 0.012 0.005K 0.020
73/07/14 10 15 2.600 0.180 0.022 0.005K 0.015
73/08/11 10 15 2.200 0.310 0.021 0.015 0.040
73/09/OR 10 40 2.600 0.300 0.017 0.005K 0.015
73/10/06 10 20 2.400 0.110 0.028 0.008 0.010
73/11/11 10 30 2.600 o,ioo,c 0.018 0.007 0.020
74/01/12 09 50 2.100 0.300 0.028 0.008 0.025
74/02/0 11 45 2.940 0.500 0.015 0.015 0.015
74/02/23 10 25 2.400 0.200 0.010 0.005K 0.015
74/03/09 10 25 2.520 0.300 0.015 0.005K 0.040
74/04/13 10 55 1.800 0.800 0.035 0.010
74/05/11 10 35 2.200 1.200 0.065 0.005K 0.00 5K
K VL LUE Ic OWN TO dE
LESS THAFa INDICATEO

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STORET RETRIEVAL DATE 7i/09/16
2403E1
3 29 14.0 076 54 05.0
BEAVER RUN
24 7.5 FINKS8URG
1/LIBERTY RESERVOIR
RDG ON RI 91 .5 M l SW OF FINKSBURG
1IEPALES 2111204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665
DATE TI’IE DEPTH NO2 NO3 TOT P(JEL NH3—N PHOS—DIS PHOS—TOT
FROM OF N-TOTAL N TOTAL ORTHO
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L P
73/05/12 13 15 2.700 0.110 0.022 0.005K 0.015
73/06/09 11 iS 2.600 0.210 0.012 0.008 0.030
73/07/lie 10 00 2.800 0.100K 0.016 0.005K 0.010
73/08/11 10 00 2.280 0.230 0.016 0.012 0.025
73/09/08 10 30 2.300 0.220 0.032 0.005K 0.020
73/10/06 10 00 2.100 0.150 0.085 0.00 5K 0.015
74/01/12 09 35 2.300 0.700 0.140 0.028 0.075
74/02/09 11 14 3.400 0.100K 0.005 0.010 0.010
74/02/23 10 15 2.800 0.300 0.020 0.005 0.027
74/03/09 10 15 2.800 0.600 0.025 0.005 0.045
74/0’./13 10 10 2.500 0.300 0.020 0.005 0.005
74/05/11 10 10 2.300 1.000 0.030 0.00 5K 0.010
K VALUE PSNO N TO 8L
LESS ThAN P4DICATEU

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STORET RETRIEVAL DATE 75/09/Lb
240 iF 1
39 22 38.0 076 53 28.0
N BRANCH PATAPSCO RIVER
24 7.5 FINKSBU’ G
0/LIBERTY RESERVOIR
AT LIBERTY i)AM
1 IEPALES
4
00630
00625
00610
00671
00665
DATE
TIME
DEPTH
N02 NO3
TOT KJEL
NH3—N
HOS—OIS
PHOS—TOT
FROM
(ii
N—TOTAL
N
TOTAL
ORTrIO
TO
QAY
FEET
MG/L
MG/L
MG/L
MG/L P
MG/L P
2111204
0000 FEET DEPTH
73/11/15
09
00
1.500
0.150
0.021
0.005K
0.020
73/11/29
09
30
1.420
0.200
0.016
0.005K
0.040
74/01/15
11
00
1.430
0.100
0.016
0.005K
0.010
74/01/31
09
15
1.260
0.200
0.048
0.008
0.008
74/02/14
14
00
1.440
0.100K
0.010
0.010
0.010
74/02/28
15
00
1.500
0.300
0.005
0.005K
0.025
74/03/15
11
30
1.520
0.300
0.015
0.005K
0.010
74/03/29
08
30
1.520
0.200
0.015
0.005K
0.010
74/04/15
16
00
1.520
0.500
0.015
0.005K
0.005
74/04/30
09
30
1.400
0.200
0.025
0.005K
0.015
K V LUL cNOwN TO bE
LESS TH. N INDICATEL)

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STORET RETRIEVAL DATE 7S/09/16
2403XA EA24 O3XA P000007
39 31 25.0 076 54 10.0
FINKSBURG A.T, AND T.
24023 CARROLL COUNTY
T/LIBERTY RESERVOIR
ROARING RUN STREAM/N. ,3RANCH PATAPSCA RV
1IEPALES 2141204
4 0000 FEET DEPTH
00630
00625
00610
00671
00665
50051
50053
DATE
TIME
DEPTH
N02&N03
TOT KJEL
NH3—N
PHOS—OIS
PHOS—TOT
fLOW
CONDUIT
FROM
OF
N-TOTAL
N
TOTAL
ORTHO
RATE
FLOW—MGD
TO
DAY
FEET
M /L
MG/L
MG/L
MG/L P
MG/L P
INST MGD
MONTHLY
73/07/12
15
10
33.000
0.130
0.100
0.660
73/0 /31
10
30
0.790
0.110
0.260
0.0004
0.0004
73/09/28
16
00
30.000
1.800
0.043
0.220
0.260
0.0004
0.0004
73/10/31
15
30
56.000
0.062
0.390
0.280
0.0004
0.0004
73/11/30
13
00
68.000
0.100K
0.022
0.300
0.310
0.0004
0.0004
74/01/03
11
00
21.000
0.500K
0.040K
0.420
0.450
0.0004
0.0004
74/01/31
14
00
30.000
0.100
0.040
0.370
0.410
0.000’.
0.0004
74/02/28
15
00
49.000
1.000K
0.0 50K
0.260
0.400
0.0004
0.0004
74/04/01
13
00
37.800
1.600
0.050K
0.182
0.410
0.0004
0.0004
74/04/30
11
00
64.000
1.0 0K
0.120
0.070
0.115
0.0003
0.0003
74/06/01
10
00
69.000
1.000K
0.050K
0.107
0.180
0.0004
0.0004
74/07/31
10
00
36.000
1.000K
0.160
0.020
0.058
0.0004
0.0004
K VALUE KNOWN TO 13E
LtSS T,iAN INDICMIED

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STORET RETRIEVAL DATE 75/09/16
240321 TF240321 P000300
39 31 27.0 076 51 22.0
NONTROSE GIRLS SCHOOL (RESISERTO
24013 CARROLL COUNTY
7/LIBERTY RESERVOIR
UNNAMED STREAM/N. BRANCH PATAPSCA RIVER
1 1EPALES 2141204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT FLOW CONDUIT
FROM OF N-TOTAL N TOTAL ORTHO RATE FLOW—MGO
TO DAY FEET HG/L MG/L MG/I MG/I P MG/L P INST HGD MONTHLY
73/06/11 07 00
CP(T)— 0.720 20.000 11.000 6.720 9.000
73/06/11 16 00
73/07/12 07 00
CP(T)— 0.440 16.800 8.500 8.700 9.400 0.018
73/07/12 15 00
73/09/12 07 30
CP(T)— 0.730 23.100 6.600 10.900 13.500 0.015 0.015
73/09/12 15 30
73/10/15 08 00
CP(T)— 0.960 23.000 12.000 10.100 13.250 0.015 0.016
73/10/15 15 00
73/11/12 07 30
CP(T)— 0.440 24.000 11.600 9.300 11.500 0.015 0.014
73/11/12 15 30
73/12/27 07 30
CPU)— 7.500 3.000 2.500 3.600 0.011 0.012
73/12/27 16 00
74/01/30 08 00 -
CP(T)— 1.460 13.000 7.500 7.200 8.500 0.006 0.007
74/01/30 16 00
74/02/26 08 00
CPU)— 1.000 17.000 8.500 7.600 9.000 0.007 0.006
74/02/26 16 00
76/03/29 07 30
CP(T)— 0.280 16.000 9.750 7.750 9.700 0.011 0.009
74/03/29 15 30
74/04/30 07 00
CP(T)— 2.520 23.000 11.000 7.000 9.700 0.018 0.001
74/04/30 15 00
74/05/31 07 00
CP(T)— 2.000 23.000 10.500 7.050 9.300 0.035 0.015
74/05/31 15 00
74/06/28 07 00
CP(T)— 0.720 20.000 10.500 5.100 7.200 0.025 0.016
74/06/28 15 00

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STORET RETRIEVAL DATE 75/09/16
240330
39 35 18.0 076 50 S2.0
8LACK AND DECKER 1
24 CARROLL COUNTY
1/LIbERTY RESERVOIR
UNNAMED STR/DEEP RUN CRK/N BRNCH PATAPSA
11EPALES 214120’.
4 0000 FEET DEPTH
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT FLOW CONDUIT
FROM OF N—TOTAL N TOTAL ORTHO RATE FLOW—MGD
TO DAY FEET MG/L MG/L MG/L MG/L P MG/L P INST MGD MONTHLY
73/06/14 09 00
CP(T)— 18.800 3.100 0.210 0.250 3.150
73/06/14 17 00
73/07/11 09 00 12.000 0.540 0.080 3.100 5.200
73/08/10 09 30 17.600 6.300 0.300 4.100 6.900 1.030 1.030
73/09/13 08 30 18.700 3.400 0.189 4.400 6.300 1.030 1.030
73/10/18 10 55 22.400 3.300 0.190 5.100 6.000 1.030 1.030
73/12/11 08 30 25.000 4.400 0.585 5.250 6.700 1.030 1.030
74/01/11 10 00 8.400 1.200 0.390 1.760 2.100 1.500 1.500
74/03/01 08 30 28.600 3.400 0.180 5.100 6.700 1.100 1.100
74/04/12 10 00 16.000 1.00 0t< 0.095 4.900 S. 50 1.100 1.100
7. 107/lU 10 00 11.900 6.700 0.860 6.900 10.500 1.100 1.100
74/08/13 08 45 17.600 6.000 0.720 13.500 16.000 1.100 1.100
74/09/10 09 00 13.000 0.610 6.000 14.000 1.100 1.100
74/10/08 10 00 15.000 4.000 0.057 7.000 8.100 1.100 1.100
K VALUE r%NOWN TU d .
LtSS THAN INOICATED

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STORET RETRIEVAL DATE 75/09/16
240331 AS240331 P001000*
39 35 13.0 076 51 15.0
bLACK AND DECKER #2
24 CARROLL COUNTY
T/L1BERTY RESERVOIR
DEEP RUN CREEK/N. 8 ANCH PATAPSCA RIVER
I1EPALES 2141204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—DIS PHOS—TOT FLOW CONDUIT
FROM OF N—TOTAL N TOTAL ORTHO RATE FLOW—MGD
TO DAY FEET MG/L MG/L MG/L MG/L P HG/L P INST MGD MONTHLY
73/06/14 00 00
CP(T)— 15.000 1.100 0.140 0.500 2.600 0.090
73/06/14 24 00
73/07/11 08 30 8.400 1.900 0.090 2.500 3.100
74/08/10 09 00 6.000 3.900 1.260 2.730 3.075 0.350 0.140
73/09/13 08 15 16.100 2.900 0.198 4.040 4.900 1.000
73/10/18 10 50 16.600 3.800 0.180 5.300 6.400 1.050 1.0 0
73/12/11 08 45 23.000 3.800 0.580 5.500 6.600 1.500 1.500
74/01/11 09 30 24.000 3.600 0.340 4.000 4.600 0.553 0.490
74/03/01 08 00 26.000 3.400 0.280 4.800 6.200 0.553 0.400
74/04/12 10 15 1.000 1.000K 0.530 4.300 4.900 0.576 0.576
74/07/10 09 45 9.875 4.300 0.960 4.500 5.900 0.553 0.490
74/08/13 08 30 15.200 5.800 0.610 9.700 10.000 0.553 0.490
74/09/10 09 15 11.300 3.900 0.190 7.600 7.600 0.576 0.576
74/10/08 10 15 7.800 4.300 0.050K 6.400 7.600 0.553 0.490
K Vi LUt KNOWN TO 3E
LESS THAN INflICATEU

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APPENDIX 0
CONVERSION FACTORS

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CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 1O = 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 = lbs/square mile

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APPENDIX E
PARAMETRIC RANKINGS OF LAKES
SAMPLED BY NES IN 1973
STATE OF MARYLAND

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LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAHE INDEX NO
1 2402 DEEP CREEK LAKE 550
2 2403 LIBERTY RESERVOIR 268
3 2408 LOCH RAVEN RESERVOIR 215
4 2409 JOHNSON POND 167

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LAKE DATA TO BE USED IN RANKINGS
LAKE MEDIAN MEDIAN 500— MEAN 15— MEDIAN
CODE LAKE NAME TOTAL P INORG N MEAN SEC CHLORA MI I I DO DISS ORTHO P
2402 DEEP CREEK LAKE 0.011 0.450 382.167 6.150 14.800 0.005
2403 LIBERTY RESERVOIR p.018 1.760 401.833 6.325 14.900 0.006
2408 LOCH RAVEN RESERVOIR 0.023 1.440 429,555 7.133 14.800 0.007
2409 JOHNSON POND 0.098 0.950 458.250 26.225 7.200 0.040

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PERCENT OF LAKES LTH }-UGhER VALUES (NUMBER OF LAKES WITH HiGHER VALUES)
LAKE MEDIAN MEDIAN 500— MEAN is— MEDIAN INDEX
CODE LAKE NAME TOTAL P INORG N MEAN SEC CHLORA MIN DO DISS ORTHO P NO
2402 DEEP C EE < LAKE 100 ( 3) 100 ( 3) 100 ( 3) 100 ( 3) 50 ( 1) 100 ( 3) 550
2403 LIBERTY RESERvOIR ô7 ( 2) 0 ( 0) 67 ( 2) 67 ( 2) 0 ( 0) 67 C 2) 268
240B LOCrI RAVEN RESEr VOIR 33 ( 1) 33 C 1) 33 C 1) 33 ( 1) 50 C 1) 33 ( 1) 215
2409 JOhNSON POND 0 ( 0) 67 C 2) 0 ( 0) 0 C 0) 100 C 3) 0 ( 0) 167

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