U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKEWHATCQM
WHATCOM COUNT/
WASHINGTON
EPA REGION X
WORKING PAPER No, 875
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-------
REPORT
ON
LAKEWHATCOM
WHATCOM COUNTY
WASHINGTON
EPA REGION X
WORKING PAPER No, 875
WITH THE COOPERATION OF THE
WASHINGTON DEPARTMENT OF ECOLOGY
AND THE
WASHINGTON NATIONAL GUARD
JULY, 1977
-------
REPORT ON LAKE WHATCOM
WHATCOM COUNTY, WASHINGTON
EPA REGION X
by
National Eutrophication Survey
Water and Land Quality Branch
Monitoring Operations Division
Environmental Monitoring & Support Laboratory
Las Vegas, Nevada
and
Special Studies Branch
Corvallis Environmental Research Laboratory
Corvallis, Oregon
Working Paper No. 875
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
July 1977
-------
CONTENTS
Page
Foreword ii
List of Washington Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 6
IV. Nutrient Loadings 12
V. Literature Reviewed 16
VI. Appendices 17
-------
ii
FOREWORD
The National EutropMcatlon Survey was Initiated 1n 1972 1n
response to an Administration commitment to Investigate the nation-
wide threat of accelerated eutrophlcation to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, 1n conjunction with state
environmental agencies, information on nutrient sources, concen-
trations, and impact on selected freshwater lakes as a basis for
formulating comprehensive and coordinated national, regional, and
state management practices relating to point source discharge
reduction and nonpoint source pollution abatement 1n lake water-
sheds .
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophlcatlon 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 eutrophlcatlon control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and
watershed data collected from the study lake and its drainage
basin is documented. The report is formatted to provide state
environmental agencies with specific Information for basin
planning [§303(e)], water quality criteria/standards review
[§303(c)L clean lakes C§314(a,b)], and water quality monitoring
[§106 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 condition
are being made to advance the rationale and data base for refine-
ment of nutrient water quality criteria for the Nation's freshwater
lakes. Likewise, multivariate evaluations for the relationships
between land use, nutrient export, and trophic condition, by lake
class or use, are being developed to assist in the formulation of
planning guidelines and policies by the U.S. Environmental Protection
Agency and to augment plans implementation by the states.
ACKNOWLEDGMENTS
The staff of the National Eutrophication Survey (Office of
Research and Development, U.S. Environmental Protection Agency)
expresses sincere appreciation to the Washington Department of
Ecology for professional involvement, to the Washington National
Guard for conducting the tributary sampling phase of the Survey,
and to those Washington wastewater treatment plant operators who
provided effluent samples and flow data.
Ms. Barbara Blau, Lake Restoration Program, and the staff
of the Washington Department of Ecology, Lake Restoration Program,
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 Howard S. McGee, Adjutant General of Washington,
and Project Officer Colonel Clinton C. Johnson, who directed the
volunteer efforts of the Washington National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
-------
IV
LAKE NAME
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF WASHINGTON
American Lake
Banks Lake
Chelan Lake
Diamond Lake
Green Lake
Keechelus Lake
Mayfield Lake
Medical Lake
Moses Lake
Ozette Lake
Sammamish Lake
Lake Whatcom
Lower Granite Reservoir
COUNTY
Pierce
Grant, Douglas
Chelan
Pend Oreille
King
Kittitas
Lewis
Spokane
Grant
Clallam
King
Whatcom
Garfield, Whatcom
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Bellingham
LAKE
WHATCOM
LAKE WHATCOM
Drainage Area Boundary
5 Km.
I I I I
I I
Scale
3 Mi.
Wash.
Map Location
122° 10'
I
48°45-
48° 40'
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REPORT ON LAKE WHATCOM, WASHINGTON
STORET NO. 5312
I. CONCLUSIONS
A. Trophic Condition:*
Based upon Survey data Lake Whatcom is considered early
mesotrophic. Chlorophyll a^ values in the lake ranged from
2.5 yg/1 to 5.0 yg/1, with a mean of 3.4 yg/1. Secchi disc
visibility remained high in the lake throughout the sampling
year, and potential for primary production as measured by algal
assay control yields was moderately low. Of the 13 Washington
lakes sampled in 1975, 10 had greater median total phosphorus
levels, none had greater median inorganic nitrogen values and
5 had greater median orthophosphorus levels than Lake Whatcom.
Survey limnologists did not observe any problem algal
blooms or macrophyte growths in the lake during the sampling
year. However, other studies (Ketelle and Uttormark, 1971;
Kraft and Mason, 1970) indicate there is a tendency towards
eutrophication in the western end of the lake as a result of
septic tank seepage from lakeshore residences.
*See Appendix E.
-------
B. Rate-Limiting Nutrient:
The algal assay results indicate that Lake Whatcom was primarily
limited by phosphorus during both spring and fall sampling rounds.
The lake data suggest phosphorus limitation on all three sampling
occasions.
C. Nutrient Controllability:
1. Point sources -
There were no known municipal or industrial point sources
contributing to Lake Whatcom during the sampling year. There
are two known fish hatcheries located on the lake (Lake Whatcom
Fish Hatchery, and a state trout hatchery on Brannian Creek);
however, annual nutrient contributions from these sources are
not known.
The present calculated annual phosphorus loading of
2
0.13 g P/m /yr is less than Vollenweider's (1975) proposed
oligotrophic level for a lake with such volume and hydraulic
retention time. Additional study is needed to determine the
actual number and significance of septic tanks contributing
to the lake nutrient budget, however, since it appears there
are localized water quality problems in Lake Whatcom due to
septic tank discharges. Ketelle and Uttormark (1971) report
that there has been some sewering of lakeshore residences
in an effort to control localized enrichment problems, but
-------
it is not known at this time to what extent the sewering has
been accomplished.
2. Nonpoint sources -
Nonpoint sources provided the entire phosphorus load
to Lake Whatcom during the sampling year. 01 sen Creek con-
tributed 6.6% of the total phosphorus load, Beaver Creek
contributed 14.3%, and ungaged drainage areas were estimated
to have contributed 62.5% of the total.
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
Lake and drainage basin characteristics are itemized below.
Lake morphometry data were provided by E.E. Wolcott (1965). Tribu-
tary flow data were provided by the U.S. Geological Survey (USGS).
Outlet drainage area includes the lake surface area. Mean hydraulic
retention time was obtained by dividing the lake volume by mean
flow of the outlet. Precipitation values are estimated by methods
as outlined in National Eutrophication Survey (NES) Working Paper
No. 175. A table of metric/English conversions is included as
Appendix A.
A. Lake Morphometry:
2
1. Surface area: 20.25 km .
2. Mean depth: 1.8 meters.
3. Maximum depth: 97.8 meters.
4- Volume: 37.005 x 106 m3.
5. Mean hydraulic retention time: 95 days.
-------
B. Tributary and Outlet:
(See Appendix B for flow data)
1. Tributaries -
Drainage Mean Flow
Name . area (km2) (m3/sec)
B-l Olsen Creek 9.8 0.30
C-l Beaver Creek 20.0 0.58
Minor tributaries and
immediate drainage 95.2 3.89
Totals 125.0 4.77
2- Outlet - A-l Whatcom Creek 145.3 4.50
C. Precipitation:
1. Year of sampling: 108.6 cm.
2. Mean annual: 84.7 cm.
-------
III. LAKE WATER QUALITY SUMMARY
Lake Whatcom was sampled three times during the open-water
season of 1975 by means of a pontoon-equipped Huey helicopter.
Each time, samples for physical and chemical parameters were col-
lected from four stations on the lake (Station 03 was only sampled
once and Station 04 was sampled twice) 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 composited
for algal assays. Maximum depths sampled were 67.0 meters at
Station 01, 62.8 meters at Station 02, 17.1 meters at Station 03,
and 18.3 meters at Station 04. For a more detailed explanation of
NES methods, see NES Working Paper No. 175.
The results obtained are presented in full in Appendix C and
are summarized in III-A for waters at the surface and at the maximum
depth for each site. Results of the phytoplankton counts and
chlorophyll a_ determinations are included in III-B. Results of the
limiting nutrient study are presented in III-C.
-------
nHATCOM
STO^ET CODE 531?
PARAMETER
N«
3/31/75 )
>» = 1
HEOIAN
MAX
DEPTH
PHYSICAL AND CHEMICAL CHARACTERISTICS
( 7/18/75 )
MAX
S«*» = 3 OEPTH
RANGE
i) N« »ANGE MEDIAN (METERS)
( 10/29/75 )
MAX
S»«» = 3 DEPTH
RANGE
RANGE MEDIAN (METERS)
(DEG CENT)
O.-l.S M DEPTH
MAX DEPTH**
DISSOLVED OXYGEN
O.-l.S M DEPTH
"AX DEPTH**
6
3
(MG/L)
6
3
6.3- 7.0
6.2- 6.7
11.6- 12.2
11. e- 12.0
6.3
6.5
12.0
11. «
0.0-
17.1-
0.0-
17.1-
1.5
59.4
1.5
59.4
6
3
6
3
16.2- 18.7
5.2- 9.2
9.2- 9.8
4.2- 10.4
17.7
5.3
9.4
9.8
0.0-
18.3-
0.0-
18.3-
1.5
67.1
1.5
67.1
6
3
6
3
13.0- 13.8
9.3- 13.0
9.8- 10.8
9.0- 10.0
13.6
9.3
10.0
9.2
0.0- 1.5
18.3- 53.3
0.0- 1.5
18.3- 53.3
CONDUCTIVITY (UMHOS)
0.-1.5 M DEPTH
MAX DEPTH**
6
3
53.- 55.
53.- 55.
54.
54.
0.0-
17.1-
1.5
59.4
6
3
23.- 58.
36.- 41.
51.
39.
0.0-
18.3-
1.5
67.1
6
3
27.- 28.
23.- 28.
28.
23.
0.0- 1.5
18.3- 53.3
PH (STANDARD UNITS)
0.-1.5 M DEPTH
MAX DEPTH**
TOTAL ALKALINITY
O.-l.S M DEPTH
MAX DEPTH**
TOTAL P (MG/L)
O.-l.S M OEPTH
M4X DEPTH**
DISSOLVED ORTHO P
0.-1.5 M DEPTH
MAX DEPTH**
N02»N03 (MG/L)
O.-l.S M OEPTH
MAX DEPTH**
6
3
(MG/L)
6
3
6
3
(MG/L)
6
3
6
3
7.1- 7.2
7.0- 7.1
10.- 17.
10.- 17.
0.008-0.015
n. ooe-o. 013
0.003-0.015
0.009-0.013
0.290-0.310
0.300-0.310
7.1
7.0
15.
13.
0.010
0.011
O.Onb
0.012
0.300
0.310
o.o-
17.1-
0.0-
17.1-
0.0-
17.1-
0.0-
17.1-
0.0-
17.1-
1.5
59.4
1.5
59.4
1.5
S9.4
1.5
59.4
1.5
59.4
6
3
6
3
6
3
6
3
6
3
7.8- 8.0
.6.9- 7.2
16.- 20.
16.- 20.
0.008-0.014
0.007-0.011
0.010-0.030
0.009-0.017
0.120-0.180
0.200-0.330
8.0
7.2
19.
19.
0.010
0.008
0.013
0.012
0.165
0.330
0.0-
18.3-
0.0-
18.3-
0.0-
18.3-
0.0-
18.3-
0.0-
18.3-
1.5
67.1
1.5
67.1
1.5
67.1
1.5
67.1
1.5
67.1
6
3
6
3
6
3
6
3
6
3
7.1- 7.3
7.0- 7.3
15.- 19.
16.- 18.
0.008-0.016
0.008-0.016
0.002-0.004
0.004-0.008
0.050-0.150
0.050-0.320
7.2
7.0
17.
16.
0.009
0.009
0.002
0.005
0.140
0.300
0.0- 1.5
18.3- 53.3
0.0- 1.5
18.3- 53.3
0.0- 1.5
18.3- 53.3
0.0- 1.5
18.3- 53.3
0.0- 1.5
18.3- 53.3
AMMONIA (MG/L)
O.-l.S M DEPTH
MAX DEPTH**
.KJELOAHL N (MG/L)
0.-1.5 i" DEPTH
MAX DEPTH**
SECCHI DISC
6 0.020-0.040
3 0.020-0.030
6 0.?00-0.400
? O.?nn-0.300
7.3- 7.9
0.030 0.0- 1.5
0.0?0 17.1- 59.4
0.300 0.0- 1.5
O.inO 17.1- 59.4
7.6
6 0.020-0.050 0.025 0.0- 1.5 6 0.020-0.020 0.020 0.0- 1.5
3 0.020-0.080 0.020 18.3- 67.1 3 0.020-0.020 0.020 18.3- 53.3
6 0.200-0.700 0.450 0.0- 1.5 6 0.200-0.200 0.200 0.0- 1.5
3 0.200-0.300 0.200 18.3- 67.1 3 0.200-0.200 0.200 18.3- 53.3
2.7- 4.3
3.0
4.0- 6.1 5.5
« N = MO. Or SAMDLES
«» MAXIMUM DEPTH bAMPLED AT EACH SITE
««« s = NO. OF SITES SAMPLED ON THIS DATE
-------
B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
03/31/75
07/18/75
10/29/75
Dominant
Genera
1. Melosira
2. Asterionella
3. Chroomonas
4. Stephanodiscus
5. label!aria
Other genera
Total
1. Tabellaria
2. Synedra
3. Cyclotella
4. Mallomonas
Other genera
Total
1. Asterionella
2. Fragilaria
3. Spondylosium
4. Chroomonas
5. Aphanocapsa
Other genera
Total
Algal
Units
per ml
735
331
257
184
110
1,617
733
193
38
38
1,002
184
184
184
147
73
109
881
-------
2. Chlorophyll a_ -
Sampling Station Chlorophyll a_
Date Number (yg/1)
03/31/75 01 3.6
02 3.6
03 5.0
04
07/18/75 01 2.8
02 2.9
03
04 2.6
10/29/75 01 2.5
02 3.4
03
04 4.4
-------
10
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked
a. 03/31/75
Spike (mg/1)
Control
0.05 P
0.05 P + 1.0 r
1.00 N
b. 10/29/75
Ortho P
Cone, (mg/1)
0.008
0.058
0.058
0.008
Spike (mg/1)
Control
0.05 P
0.05 P + 1.0 N
1.00 N
Ortho P
Cone, (mg/1)
0.005
0.055
0.055
0.005
Inorganic N
Cone, (mg/1)
0.294
0.294
1.294
1.294
Inorganic N
Cone, (mg/1)
0.180
0.180
1.180
1.180
Maximum Yield
(mg/1-dry wt.)
0.4
9.6
26.5
0.3
Maximum Yield
(mg/1-dry wt.)
0.3
6.7
29.9
0.4
-------
11
2. Discussion -
The control yields of the assay alga, Selenastrum capri-
cornutum, indicate that potential for primary productivity as
measured by algal assay control yield was moderate during both
spring and fall sampling of Lake Whatcom. In both assays, there
was a significant increase in yield over that of the control when
phosphorus was added, indicating primary limitation by phosphorus.
In both assays, the addition of nitrogen alone did not result in
an increase in yield over that of the control, and the simultaneous
addition of both nutrients resulted in maximum increase in yield.
The mean inorganic nitrogen to orthophosphorus ratios (N/P)
in the lake data were approximately 36/1, 19/1 and 58/1 during
spring, summer and fall visits to the lake, indicating phosphorus
limitation (a mean N/P ratio of 14/1 or greater generally reflects
phosphorus limitation).
-------
12
IV. NUTRIENT LOADINGS
(See Appendix D for data)
For the determination of nutrient loadings, the Washington
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 March when two samples were collected.
Sampling was begun in September 1974, and was completed in August
1975.
Through an interagency agreement, stream flow estimates for
the year of sampling and a "normalized" or average year were pro-
vided by the Washington District Office of the USGS for the tribu-
tary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a USGS computer program for
calculating stream loadings. Nutrient loads indicated for tribu-
taries are those measured minus known point source loads, if any.
Nutrient loadings for unsampled "minor tributaries and
immediate drainage" ("II" of USGS) were estimated by using the mean
2
annual nutrient loads, in kg/km /year, in Olsen Creek at Station
2
B-l and multiplying the means by the II area in km .
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13
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
% of
Source kg P/yr total
a. Tributaries (nonpoint load) -
B-l Olsen Creek 170 6.6
C-l Beaver Creek 370 14.3
b. Minor tributaries and immediate
drainage (nonpoint load) - 1,620 62.5
c. Known municipal STP's - None
d. Septic tanks* - 75 2.9
e. Known industrial - None
f. Direct precipitation** - 355 13.7
Totals 2,590 100.0
2. Output - A-l Whatcom Creek 1,480
3. Net annual P accumulation - 1,110
*Estimate based on 258 lakeshore residences and 1 park.
**Estimated (See NES Working Paper No. 175).
-------
14
Annual Total Nitrogen Loading - Average Year:
1. Inputs -
% of
Source kg N/yr total
a. Tributaries (nonpoint load) -
B-l Olsen Creek 10,895 6.5
C-l Beaver Creek 25,410 15.2
b. Minor tributaries and immediate
drainage (nonpoint load) - 106,435 63.5
c. Known municipal STP's - None
d. Septic tanks* - 2,785 1.7
e. Known industrial - None
f. Direct precipitation** - 21.860 13.1
Totals 167,385 100.0
2. Output - A-l Whatcom Creek 89,620
3. Net annual N accumulation - 77,765
*Estimate based on 258 lakeshore residences and 1 park.
**Estimated (See NES Working Paper No. 175).
-------
15
D. Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
2 2
Tributary kg P/km /yr kg N/km /yr
Olsen Creek 17 1118
Beaver Creek 18 1270
E. Yearly Loadings:
In the following table, the existing phosphorus annual loading
is compared to the relationship proposed by Vollenweider (1975).
Essentially, his "eutrophic" loading is that at which the receiving
waters would become eutrophic or remain eutrophic; his "oligotrophic"
loading is that which would result in the receiving water remaining
oligotrophic or becoming oligotrophic if morphometry permitted. A
"mesotrophic" loading would be considered one between "eutrophic"
and "oligotrophic".
Note that Vollenweider's model may not apply to lakes with
short hydraulic retention times or in which light penetration is
severely restricted by high concentrations of suspended solids in
the surface waters.
Total Yearly
Phosphorus Loading
(g/m2/yr)
Estimated loading for Lake Whatcom 0.13
Vollenweider's "eutrophic" loading 0.52
Vollenweider's "oligotrophic" loading 0.26
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16
LITERATURE REVIEWED
Ketelle, Martha J. and Paul D. Uttormark. 1971. Problem Lakes In
the United States. U.S. Environmental Protection Agency Project
#16010EHR, University of Wisconsin, Madison, Wisconsin.
Kraft, G.E. and D.T. Mason. 1970. Factors Affecting the Movement
of Water and Organisms Within a Regulated Multipurpose Lake.
U.S. Department of Interior, Office of Water Resources Research,
#W70-09090
U.S. Environmental Protection Agency. 1975. National Eutrophica-
tion Survey Methods 1973-1976. Working Paper No. 175. National
Environmental Research Center, Las Vegas, Nevada, and Pacific
Northwest Environmental Research Laboratory, Corvallis, Oregon.
Vollenweider, R.A. 1975. Input-Output Models With Special
Reference to the Phosphorus Loading Concept in Limnology.
Schweiz. Z. Hydrol. 37:53-84.
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17
VI. APPENDICES
APPENDIX A
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.201 = feet
Cubic meters x 8.107 x 10" = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 - pounds
KiVograms/s.quarc kilometer x 5.711 - Ibs/square mile
-------
APPENDIX B
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION F0» WASHINGTON
11/16/76
L*"E CCOt ^3'.?
OF
.
4
^
(..
7
%
9
1 t
I \
12
1
?
3
4
5
6
7
q
7*
74.
7.
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
FLOW DAY
FLOW DAY
FLOto
0.010
0.274
0.015
1.303
7.306
4.739
1.960
0.035
0.042
0.030
0.535
0.036
0.037
0.048
0.255
0.453
0.708
0.566
0.453
0.368
0.232
0.082
0.048
0.057
21
19
20
a,
16
3
20
28
2?
5
21
19
?n
a
16
3
2n
28
??
5
0.006
0.03R
0.017
0.014
6.343
6.173
0.024
0.024
0.024
0.021
0.034
0.045
0.453
0.190
0.311
0.680
0.340
0.167
0.068
0.048
16
0.057
16
0.373
-------
TRIBUTARY FLOW INFORMATION FOP WASHINGTON
11/16/76
LAKF CODE 5313 WHATCO* LAKE
MEAN MONTHLY FLO*S AND DAILY FLO«S(CMS)
TRIBUTARY
531?C1
531277
MONTH
YEAH
9
in
11
12
1
?
3
4
5
6
7
8
q
10
11
12
1
2
3
4
5
6
7
a
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
MEAN FLO* DAY
0.031
0.045
0.425
0.991
1.416
1.133
0.906
0.708
0.425
0.093
0.042
0.054
0.850
0.283
1.699
4.531
8.212
5.947
3.964
4.248
5.097
3.398
3.823
3.681
21
IP
20
P
\f>
1
20
2«
2?
=i
FLO* DAY
0.028
0.042
0.850
0.368
0.963
FLOW DAY
FLO«
1.388
0.311
0.215
0.071
0.042
16
0.906
-------
APPENDIX C
PHYSICAL AND CHEMICAL DATA
-------
STOHET
•"ATL
EPA-LAS VEGAS
DfiTF. 7<,/ll/16
531201
48 41 21.0 12? 18 03.0 3
WHATCOH LAKE
53073 WASHINGTON
1311Q1
OATF
TO
75/03/31
75/07/18
75/10/29
TIME C
OF
0001
)EPT^ WATEa
TFMP
DAr FEET
10
10
10
10
10
10
09
09
09
09
09
(19
09
09
08
08
Oft
08
08
Oft
08
00
0"
00
00
00
00
3^
•55
35
3*
35
35
35
35
50
50
CO
50
50
50
50
000"
000^
ooz*
0050
007"
008*
onoo
0005
002S
004S
0070
0120
0170
0220
0000
0005
002^
0060
009=.
013^
017^
CENT
6
6
6
6
6
«,
16
16
16
10
6
5
5
5
13
13
13
13
9
9
9
0
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
9
•
•
•
•
•
3
5
4
4
5
5
2
4
0
1
5
S
4
2
6
6
6
6
6
4
3
00300
00
MG/L
12.
i ?.
12.
11.
11.
11.
9.
9.
10.
10.
10.
10.
10.
10.
9.
9.
9.
10.
9.
9.
9.
2
0
0
8
8
8
2
8
0
8
6
(S
4
4
8
8
8
2
6
4
0
00300 00077 00094
00 THANSP CNDUCTVY
cEcci-ii FIELD
*6/L INCHES "IC&OMHO
12.2 288
l?.o
12.0
11.8
11.8
11. e
9.2 120
9.8
10.0
10.8
10.6
10. ft
10.4
10.4
9.8 240
9.8
9.8
10.2
9.6
9.4
9.0
53
53
^3
54
54
54
23
SO
41
36
29
31
37
36
28
27
27
27
22
21
23
11EPALES 2111202
009? FEET DEPTH CLASS oo
00400 00410 00610 00«>25 00630 ao~71
PH T ALK NH3-N TOT KJF.L N02&N03 DHOS-OtS
CAC03 TOTAL N N-TOTflL 0»TnO
SH
7.10
7.10
7.10
7.10
7.10
7.05
7.95
7.95
7.85
7.50
7^40
7.30
7.30
7.20
7.20
7.25
7.25
7i20
7.10
7.00
7.00
MG/L
14
IS
15
15
16
17
19
16
1*
16
1«
16
15
16
17
18
17
15
14
14
16
MG/L
0.030
0.030
0.020
0.0?0
0.030
0.0?0
0.030
0.0?0
0.030
0.030
0.020K
0.020
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
MG/L
0.400
0.300
o.?oo
0.200K
0.200K
0.200K
0.700
0.200
0.200K
0.200K
0.200K
0.200X
0.200K
O.^OO^
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
0.200K
MG/L
O.?90
0.310
0.300
0.310
0.310
0.310
0.160
0.170
0.170
O.?40
0.330
0.330
0.320
0.330
0.150
OilSO
o.i=;o
0.150
0.310
0.320
Oi300
Mr,/L f
0.005
0.014K
0.004
0.005
0.003
0.109K
0.010J
0.013K
0.010K
O.OIOK
0.010K
0.009K
0.009K
0.009K
0.00?
0.00'K
0.002K
0.002K
o.OO?
0.002
0.00«
K VALU6 KNOWN TO BE LESS
THAN INDICATED
J VALUE KNOWN TO BE ESTIMATED
-------
STOHET PETRIEV4L D&TE
NATL EUT*OP*ICATIO S
EPA-L'S VEGAS
531201
48 41 21.0 12? 18 03.0 3
*HATCOM LAKE
=13073 WASHINGTON
11F.PALES
0092 FEET
2111202
DEPTH CLASS 00
DATE
TO
75/03/31
75/07/18
75/10/29
00665 32217 00031
TIME DEPTH PHOS-TOT CHLPPHYL INCDT I.T
OF A P^MNING
DAY FEET
10
10
10
10
10
10
09
09
09
09
09
09
09
09
08
08
08
08
08
08
08
00
00
00
00
00
00
35
35
35
35
35
35
35
35
50
50
50
50
50
50
SO
000"
000 =
0025
0050
0070
00*6
0000
000=.
0025
0045
0070
0120
0170
0220
0000
000=,
002C
006"
009S
013S
0175
MG/L ° IIG/L PFRCENT
0,
0 ,
0,
0,
0,
0.
0,
0.
0.
.0.
0.
0,
0.
0.
0.
0,
0.
0,
0,
0,
0.
.014 3.6
.010
.008
.011
.007
.000
.011 2.8
.008
,009
.008
.006
.006
.006
,007
.009 ?.5
.008
.008
.009
,007
.007
.009
-------
RETRIEVAL
(1 55 0?0ft
19 25 0000
19 25 0005
19 25 00?5
)9 25 0060
19 25 0095
19 25 0135
19 25 0175
00010
VATE9
TFMP
CENT
6.
6.
6.
6.
6.
6.
17.
17.
17.
IS.
6.
5.
5.
5.
13.
13.
13.
13.
13.
9.
T* •
3
6
3
3
3
?
7
8
4
0
&
ft
4
3
8
8
8
9
8
4
3
00300
00
MG/L
11.8
11. ft
11.6
11. H
11.8
11. «
9.4
0.4
8.8
10. 0
10.0
10.2
9.8
10. 0
10.8
9.8
10.2
9.8
9.2
00300
00
MG/L
11.8
11. ft
11.6
11. H
11.8
11. «
9.4
0.4
8.8
10. 0
10.0
10.2
9.8
10. 0
10.8
9.8
10.2
9.8
9.2
00077 00094
TkANSP CNDUCTVY
«;ECCHI FIELD
INCHES MICPOMHO
300 54
53
54
53
54
55
108 58
51
45
39
34
36
33
39
216 28
28
28
26
24
19
23
00400
PH
su
7.20
7.10
7.10
7.05
7.15
7.10
7.85
R.OO
7.95
7.65
7.30
7.30
7.20
7.20
7.15
7.20
7.30
7.30
7.30
7.10
7.00
00410
T ALK
CAC03
MG/L
1ft
17
18
18
17
13
20
19
18
17
21
19
If*
19
15
15
15
14
17
17
16
00610
NH3-N
TOTAL
MG/L
0.020
0.030
0.020
0.020
0.020K
0.030
0.04Q
0.070
0.030
0.030
0.020
0.020K
0.020K
0.020
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
00625
TOT KJEL
M
MG/L
0.200
0.200
0.200
0.300
0.300
0.300
0.700
0.300
0.300
0.300
0.300
0.200
0.200
O.?00
0.200*
O.POOK
0.200K
0.200K
0.200K
0.200K
0.200K
00630
N02S.N03
N-TOTAL
MG/L
0.310
0.310
0.310
0.310
n . 3 1 o
0.310
0.180
0.170
0.170
0.190
0.300
0.330
0.330
0.330
0.140
0.140
0.130
0.130
0.140
0.31P
0.320
00671
PHOS-DIS
OPTHO
Mrc /L_ P
0.006J
0.006J
0.003
0.002
0.011K
0.013J
0.030K
0.016K
0.013K
0.017*
0.013K
O.OIOK
0.012K
0.012K
0.002K
0.002
0.002K
0.002K
0.002K
0.004
0.004
K VALUE KNOWN TO BE LESS
THAN INDICATED
J VALUE KNOWN TO BE ESTIMATED
-------
PET=UEV«L DATE
>YAT|.
EPA-LAS VEGAS
531202
48 44 18.0 132 20 33.0 3
WHATCOM LAKE
53073 WASHINGTON
11EPALES
0204 FEET
DEPTH
2111202
CLASS On
DATE
FSO'f
TO
75/03/31
75/07/l«
75/10/29
0066* 32217 00031
TIME OEPT« PHOS-TOT CHLPPHYL INCDT LT
OF A =>F*NTi\JG
04Y FFET
11
11
11
11
1
1
1
1
1
1
11
11
11
11
09
09
09
09
09
09
09
20
20
20
20
20
20
55~
55
55
55
55
55
55
55
25
25
25
25
25
25
25
onoo
000*
0055
0100
015"
019=.
0000
000=;
0030
0045
0080
0130
017"
020f.
0000
0005
002*
OOM
0095
0135
0175
MG/L P UG/L PFrtCENT
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
n
0
0
0
0
.00* 3. ft
.010
.011
.010
.009
.013
.012 2.9
.014
.009
.012
.007
.007
.007
.008
.009 3.4
.008
.008
.009
.010
.007
.008
-------
NATL
DflTE
FRO"
TO
OATF
It)1*- r,i.'Pv/F.Y
TI
-------
ST1PET PETRIEv/AL OATF 76/11/1'.
MAIL FUT»OPnIC4TIOf'
EPA-LAS
531204
43 45 38.0 12? 24 30.0
*'H4TCOM LAKE
53073
OATE
FPOU
TO
75/07/13
75/11/04
TIME
OF
r>Av
11 25
11 25
11 25
11 25
11 25
10 05
10 05
10 05
10 05
10 05
OEPT"
FEET
000"
oon^
002^
0040
0060
0001
ooo^
00?n
0047
0060
oooio
WATER
TFMP
CFNT
13.6
13.7
14.7
10.4
9.?
13.0
13.0
13.0
13.0
13.0
11FP«LE«; ?1112f>2
"064 FEET PFPTH CLASS
00300
00
"G/L
9.2
9.4
3.0
7.4
4.2
10. 0
10.0
10. 0
10.2
10.0
00077 00094
T»ANSP CNDUCTVY
«;ECCHI FIELD
INCHES MICMOMHO
16« RO
56
46
44
41
1^6 2H
28
2ft
2«
23
00400
PH
SU
P.. 00
8.00
7.50
6.90
6.90
7.10
7.20
7.20
7.30
7.25
00410
T ALK
CAC03
MG/L
Ifl
IP
17
1«
20
. 19
17
20
19
13
00610
NH3-N
TOTAL
MG/L
0.050
0.020
0.040
0.050
0.030
0.0?0
0.020K
0.020K
0.020K
0.020K
00
006?5
TOT KJEL
M
MG/L
0.600
0.300
0.200
0.200
0.^00
O.?00«
0.200K
0.200K
0.200f
0.200K
00630
N02«.Nf>3
I^-TOTAL
MG/L
0.160
0.120
0.120
0.160
o.?oo
0.030
0.050
0.050
0.050
0.050
00671
PHOS-OIS
ORT^O
MR/L P
0.013K
0.010K
0.011K
0.016K
0.017K
0.004
0.002
0.003
0.005
0.005
OATE
TO
OF
DAY FFF.T
75/07/l« 11 2=i 0000
U ?5 000^
11 ?«5 no?^
It 25 0040
11 25 0061
75/11/04 10 05 000"
10 05 OOOR
10 05 0020
10 05 0047
10 05 006"
0665
S-TOT
/L P
0.009
0.008
0.009
0.009
o.nii
0.016
0.013
0.015
0.015
0.016
32217
CHLP.PHYL
A
UG/L
2.6
4.4
00031
INCDT LT
OFK'NING
PERCENT
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
APPENDIX D
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
ST09ET PF.TPIFVAL D«TE•76/11/16
N*TL EUTROPHlC
EPA- |_AS VEGAS
DATE
TO
74/00/21
74/10/19
74/1 l/2n
74/12/0«
75/01/16
75/03/03
75/03/16
75/04/20
75/n5/2fl
75/06/22
75/06/05
TIME !
DAY
n9
10
13
11
14
13
15
10
14
14
13
1
30
on
on
on
00
on
15
15
00
3"
15
5312A1
48 45 00.0 132 25 45.0 4
WHATCO* C^EEK
53 7.5 BELLINGHA* N
0/LAKE WHATCO" m
SMPL OFF DI^T HO .7 MI E OF
11EPALES ?11120<
nooo FEET DEPTH CLASS on
ST
10630
'S.N03
TlTAL
IG/L
0.064
0.07?
0.0fl«
0.096
0.980
0.264
0.200
0.1 35
0.140
0.135
0.065
00625
TOT KJEL
N
KG/L
O.?00
8.700
0.300
0.400
0.100K
0.100
0.100
0.200
0.250
0.250
0.400
00610
NHI-N
TOTAL
MG/L
0.0^0
0.135
0.040
0.030
0.016
0.008K
0.0"8K
0.035
0.045
0.025
0.037
00671
PHOS-DIS
O^THO
MG/L P
0.015
n.005K
0.016
0.010
0.008
O.OOflK
o.ooe
0.010
0.010
0.010
0.005K
00665
PHOS-TOT
MR/L P
0.020
0.025
0.020
0.010K
0.010K
0.010
0.020
0.040
0.010
0.030
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
E 76/11/16
NftTL
FPA-
L.AC
531281
48 45 05.0 182 21 07.0 4
OLSEN CWEEK
^ 7.=; LAHSKNCE
T/LAKE WHftTCO"
H SHO«£ *0 PWOG .3 MI
OF AGATE
oooo FEET DEPTH CLASS
DATE
FRO1""
TO
74/OQ/21
74/10/19
74/11/21
74/12/06
75/01/16
75/03/03
7^/r,3/16
75/04/20
75/05/28
75/06/22
75/08/05
00630 006?b
TI«E OEPT" NO?*.N03 TOT KjEL
OF , N-TOTAL M
DAV FEET MR/L MG/L
11
11
15
09
13
13
13
09
14
13
14
On
00
00
45
30
30
25
00
30
30
30
0
0
1
1
0
0
1
0
0
0
0
.216
.160
.100
.060
.176
.830
.250
.430
.630
.360
.175
0.150
0.100
0.550
0.300
0.300
0.100
0.100
0.300
0.100
0.125
0.150
00610 00671 00665
MH3-N PHOS-DIS PHOS-TQT
TOT4L 03THQ
MG/L MG/L P MG/L »
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
017
025
0?8
020
OOP
O^flK
OOHK
0?5
015
010
060
0
0
0
0
0
0
0
0
0
0
.005
.008K
.005K
.008K
.008K
.008*
.005
.005K
.010
.005
n
0
0
0
0
0
0
0
0
0
0
.010
.005
.060
.010K
.010K
.010
.010
.030
.020
.026
,0?0
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
STOPET PFT3IEVAL OATF ?«./ll/16
NATL E
FPA- l_
DATE
foo1^
TO
74/09/21
74/10/19
74/11/20
74/12/08
75/01/16
75/03/01
75/03/16
75/04/20
75/05/28
75/06/22
75/08/05
Tiv
OF
OA>
10
10
14
10
14
11
13
09
15
14
13
• c ;
1
no
3"
00
30
30
00
25
45
50
20
30
FF.ET
531?C1
4THO
MG/L P
0.010
0.005K
0.016
0.005K
0.008K
0.008K
0.008K
0.005
0.005
0.005
0.005
00665
PHOS-TOT
MG/L P
0.020
0.010
0.050
0.010K
0.010K
0.010K
0.010
0.020
0.040
0.020
0.040
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
APPENDIX E
PARAMETRIC RANKINGS OF LAKES
SAMPLED BY NES IN 1975
STATE OF WASHINGTON
Mean or median values for six of the key parameters evaluated
in establishing the trophic conditions of Washington lakes sampled
are presented to allow direct comparison of the ranking, by parameter,
of each lake relative to the others. Median total phosphorus, median
inorganic nitrogen and median dissolved orthophosphorus levels are
expressed in mg/1. Chlorophyll a_ values are expressed in yg/1.
To maintain consistent rank order with the preceding parameters,
the mean Secchi disc depth, in inches, is subtracted from 500.
Similarly, minimum dissolved oxygen values are subtracted from 15
to create table entries.
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
5301 AMERICAN LAKE
5302 BANKS LAKE
5303 CHELAN LAKE
5304 DIAMOND LAKE
5305 GPEEN LAKE
5306 KEECHELUS LAKE
5307 MAYFIELD LAKE
5308 MEDICAL LAKE
5309 MOSES LAKF
5310 07ETTE LAKE
5311 SAMMAMISH LAKE
5312 WHATCOM LAKE
5313 LOWER GRANITE RESERVOIR
MEDIAN
TOTAL P
0.027
0.021
0.005
0.014
0.027
0.007
0.014
0.275
0.115
0.010
0.015
0;009
0-.033
MEDIAN
INORG N
0.105
0.040
0.070
0.060
0.050
0.040
0.100
0.225
0.150
0,110
0.210
0.320
0.150
500-
MEAN SEC
343.000
364.533
111.900
303.667
415.000
280.250
402.000
401.714
463.600
403.333
374.000
2R8.000
435.500
MEAN
CHLORA
4.822
7.373
0.905
14.537
2.983
1.400
4.250
16.425
29.060
1.225
7.290
3.422
4.875
15-
MIN DO
15.000
10.800
6.400
14.200
10.600
9.200
10.600
15.000
14.600
7.200
14.600
10.ROO
7.200
MEDI
DI«?S 0»T
0.007
0.007
0.003
0.010
0.009
0.00?
0.007
0.166
0.038
' 0.009
0.00*
0.009
0.0??
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
5301 AMERICAN LAKE
5302 BANKS LAKE
5303 CHELAN LAKE
530* DIAMOND LAKE
5305 GREEN LAKE
5306 KEECHELUS LAKE
5307 MAYFIELD LAKE
5308 MEDICAL LAKE
5309 MOSES LAKE
5310 OZETTE LAKE
5311 SAMMAMISH LAKE
5312 WHATCOM LAKE
5313 LOWER GRANITF RESERVOIR
MEDIAN
TOTAL P
29 (
42 (
100 (
6? (
29 |
92 1
62 1
0 1
8 1
75 I
50 i
83 i
17 i
3)
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