U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
BANKS LAKE
GRANT AND DOUGLAS COUNTIES
WASHINGTON
EPA REGION X
WORKING PAPER No, 865
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-------
REPORT
ON
BANKS LAKE
GRANT AND DOUGLAS COUNTIES
WASHINGTON
EPA REGION X
WORKING PAPER No, 865
WITH THE COOPERATION OF THE
WASHINGTON DEPARTMENT OF ECOLOGY
AND THE
WASHINGTON NATIONAL GUARD
JULY, 1977
-------
REPORT ON BANKS LAKE
GRANT AND DOUGLAS COUNTIES, 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. 865
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
July 1977
-------
CONTENTS
Page
Foreword i i
List of Washington Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Introduction 1
II. Conclusions 1
III. Lake Characteristics 3
IV. Lake Water Quality Summary 4
V. Mean Nutrient Concentrations in Ungaged Streams 10
VI. Literature Reviewed 11
VII. Appendices 12
-------
ii
FOREWORD
The National Eutrophlcatlon Survey was Initiated 1n 1972 1n
response to an Administration commitment to Investigate the nation-
wide threat of accelerated eutrophlcatlon to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concen-
trations, and impact on selected freshwater lakes as a basis for
formulating comprehensive and coordinated national, regional, and
state management practices relating to point source discharge
reduction and nonpoint source pollution abatement in lake water-
sheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's 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 eutrophlcation 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
L§303(c)], clean lakes [§314(a,b)], and water quality monitoring
[§106 and §305(b)] activities mandated by the Federal Water
Pollution Control Act Amendments of 1972.
-------
m
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condition
are being made to advance the rationale and data base for refine-
ment of nutrient water quality criteria for the Nation's freshwater
lakes. Likewise, multivariate evaluations for the relationships
between land use, nutrient export, and trophic condition, by lake
class or use, are being developed to assist in the formulation of
planning guidelines and policies by the U.S. Environmental Protection
Agency and to augment plans implementation by the states.
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
-------
Wash.
Map Location
BANKS LAKE
Tributary Sampling Site
X Lake Sampling Site
-------
REPORT ON BANKS LAKE, WASHINGTON
STORET NO. 5302
I. INTRODUCTION
Banks Lake was included in the National Eutrophication Survey
as a water body of interest to the Washington Department of Ecology.
A number of streams to Banks Lake were sampled; however, normalized
flow data for these tributaries were not available so annual nutrient
loadings to the lake could not be calculated. The tributary sam-
pling data are included in Appendix D for the record, and are sum-
marized in Section V of the report.
Banks Lake was created in 1951 and is primarily fed by water
pumped from Franklin D. Roosevelt Reservoir through Feeder Canal
(D-l) during the drier months of the year. The lake receives
heavy recreational and irrigation use (Dion, et al., 1976).
II. CONCLUSIONS
A. Trophic Condition:*
Survey data indicate that Banks Lake is mesotrophic.
Chlorophyll a_ values ranged from a low of 2.0 yg/1 to a high
of 27.2 yg/1, with a mean of 7.4 yg/1. Potentials for primary
productivity as measured by algal assay control yields were
moderate to low. Of the 13 Washington lakes sampled in 1975,
5 had greater median total phosphorus values (0.021 mg/1),
*See Appendix E.
-------
12 had higher inorganic nitrogen levels (0.040 mg/1) and 8
had higher median dissolved orthophosphorus levels (0.007 mg/1)
than Banks Lake.
Survey limnologists did not report any problem algal
blooms during their visits to the lake.
C. Rate-Limiting Nutrient:
Algal assay results indicate that Banks Lake was limited
by available phosphorus levels on the sample collection dates
(04/03/75, 09/10/75). Lake data suggest primary limitation
by nitrogen.
-------
III. LAKE CHARACTERISTICS
A. Lake Morphometry:*
2
1. Surface area: 100.77 km .
2. Mean depth: 12.4 meters.
3. Maximum depth: 25.9 meters.
4. Volume: 1251.006 x 106 m3.
5. Mean hydraulic retention time: 175 days.
B. Precipitation:
1. Year of sampling: 32.6 cm.
2. Mean annual: 32.2 cm.
*E.E. Wolcott, 1965. Hydraulic retention time calculated by dividing
the lake volume by provided mean flow of the outlet.
-------
IV. LAKE WATER QUALITY SUMMARY
Banks Lake 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
collected from five 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 and last visits, 18.9-liter
depth-integrated samples were composited for algal assays.
Maximum depths sampled were 11.3 meters at Station 01, 24.1
meters at Station 02, 18.9 meters at Station 03, 11.6 meters
at Station 04, and 20.1 meters at Station 05. For a more de-
tailed 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.
-------
STO"ET CODE 5102
?/7b
MAX
AND CHEMICAL CHARACTERISTICS
( 7/2?/75 )
MAX
( 9/10/75 )
MAX
PARAMETER
TE'>Pe:"ATU°E OF.G CEi*
O.-l .s M DEPTH
"AX DEPTH**
DISSOLVED OXYGEN («G
O.-l.S M DEPTH
«A< DEPTH**
CONDUCTIVITY (UMHQSI
O.-l.S M DEPTH
"AX DEPTH**
PH (STANDARD UNITS!
n.-i.s * DEPTH
MAX DE°TH**
TOTAL ALKALINITY c^
O.-l.S M DEPTH
MAX DEPTH**
TOTAL P
O.-l.S M DEPTH
MAX OFPTH**
N.
T)
8
4
/L!
10
5
10
5
10
S
/L)
10
S
10
5
^ AN
3.7-
1.7-
11.2-
l?.o-
83.-
83.-
7.9-
8.0-
53.-
51 .-
0.017-0
0.016-0
J ,,t^K
S. 3 "5 .^v
6.0 1.9
i3.(i i ? . i
1?.4 1?.2
90. AS.
89. «4.
H.3 8.1
8.3 8 . 1
60. Sf..
56. 51.
• 03 •* O.OP^
.035 O.T1
.) i f. ;, r
("ETExS)
0.0- 1.5
ft.*- 23.2
o.O- l.S
6.4- ?3.i>
) . 0 - 1.5
6.4- 23.2
0.0- 1.5
6.4- 23.2
n.o- 1.5
6.4- 23.2
0.0- l.S
6.4- V3.2
...
10
5
10
S
10
5
10
5
10
5
10
S
*ANGE
15.8- 21.4
12.9- 17.4
fi.4- 9.2
4.2- 9.2
109.- 133.
109.- 125.
8.2- 8.9
7.5- 8.3
S7.- 68.
57.- 65.
0.011-0.018
0. 019-0. ?46
MEDIAN
19.3
14.1
8.9
7.4
127.
113.
8.4
7.9
62.
60.
0.016
0.051
RANGE
(METERS)
0.0-
7.9-
0.0-
7.9-
0.0-
7.9-
0.0-
7.9-
0.0-
7.9-
0.0-
7.9-
1.5
20.1
1.5
20.1
1.5
20. 1
1.5
20.1
1.5
20.1
1.5
20.1
N*
10
5
10
s
10
s
10
5
10
5
10
5
S«e*
RANGE
19.0- 20.8
17.3- 10.4
6.4- 11.0
4.4- 8.4
122.- 136.
lie.- 126.
7.8- 8.6
7.4- 7.9
59.- 70.
61.- 70.
0.014-0.027
0.016-0.234
s S
MEDIAN
19.9
18.7
8.5
6.4
125.
123.
8.0
7.9
63.
63.
0.021
0.032
DEPTH
RANGE
(METERS)
0.0-
7.3-
0.0-
7.3-
0.0-
7.3-
0.0-
7.3-
0.0-
7.3-
0.0-
7.3-
1 .5
24.1
1.5
?4.1
1.5
24.1
1.5
24.1
1.5
24.1
1.5
24.1
DISSOLVED OPTHO P (MG/L)
o.-i.s M DEPTH
MAX DEPTH**
NO?»ND3 (MG/L)
O.-l.S M OEPTH
MAX DEPTH**
AMMONIA (MG/D
O.-l.S M DEPTH
MAX DEPTH**
KJELOAHL M (MG/L)
O.-l.S M OEPTH
MAX DEPTH**
10
5
10
S
10
5
10
b
0.004-0
0.005-0
n.020-0
o.o?o-o
0.020-0
0.020-0
o.?on-o
o.?oo-o
.014 0.016
.012 O.nnb
.030 0 . 0 ? 0
.020 0.0?0
.030 0.0?0
.030 O.n?0
.400 0.100
.300 0.20D
0.0- 1.5
6.4- ?3.2
0.0- l.S
6.4- 23.2
0.0- 1.5
6.4- 23.2
0.0- 1.5
6.4- 21.2
10
5
10
5
10
S
10
5
0.004-0.017
0.011-0.023
0.020-0.020
0.020-0.020
0.020-0.040
0.020-0.040
0.200-0.200
0.200-0.400
0.009
0.015
0.0?0
0.020
0.030
0.030
0.200
0.200
0.0-
7.9-
0.0-
7.9-
0.0-
7.9-
0.0-
7,w-
1.5
20.1
l.S
20.1
1.5
20.1
1.5
20.1
10
5
10
5
10
S
10
s
0.003-0.017
0.005-0.028
0.020-0.020
0.020-0.050
0.020-0.030
0.020-0.020
0.200-0.200
0.200-0.200
O.GOS
0.015
0.020
0.020
0.020
0.020
0.200
0.200
0.0-
7.3-
0.0-
7.3-
0.0-
7.3-
0.0-
7.3-
1.5
24.1
1.5
24.1
1.5
24.1
l.S
24.1
SECCHI DISC
1.4- 4.0
.1- 4.0
3.0
2.4- S.3 5.2
* M = NiO. OF SfPLPS
»« MO^.IMUM DE^T1-1 SAMPLED AT EACH
**« <; = N.O. OF STTES SAMPLED u* THIS DATE
-------
B. Biological Characteristics:
1. Phytoplankton -
Sampling
Date
04/03/75
07/22/75
09/10/75
Dominant
Genera
1. Asterionella
2. label 1 aria
3. Lyngbya
4. Dinobryon
5. Chroomonas
Other genera
Total
1. Melosira
2. Asterionella
3. Anabaena
4. Ankistrodesmus
5. Chroomonas
Other genera
Total
1. Asterionella
2. Tabellaria
3. Fragilaria
4. Chroomonas
5-. Aphanizomenon
Other genera
Total
Algal
Units
per ml
3,034
358
167
119
96
168
3,942
690
248
221
55
55
111
1,380
624
451
416
243
173
348
2,255
-------
2. Chlorophyll £ -
Sampling Station Chlorophyll
Date Number (yg/1)
04/03/75 01 4.8
02 27.2
03 12.6
04 12.8
05 12.9
07/22/75 01 2.2
02 3.0
03 2.0
04 5.5
05 2.2
09/10/75 01 2.3
02 2.9
03 2.8
04 11.6
05 5.8
-------
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked
Spike (mg/1)
Or'tho P
Cone, (mg/1)
Inorganic N
Cone, (mg/1)
a. 04/03/75
Control
0.05 P
0.05 P + 1.0 N
1.00 N
Control
0.05 P
0.05 P + 1.0 N
1.00 N
b. 09/10/75
Control
0.05 P
0.05 P + 1.0 N
1.00 N
Control
0.05 P
0.05 P + 1.0 N
1.00 N
Stations 01, 02
<0.008
<0.058
<0.058
<0.008
Stations 03-05
0.003
0.053
0.053
0.003
Stations 01,02
0.010
0.060
0.060
0.010
Stations 03-05
0.010
0.060
0.060
0.010
0.024
0.024
1.024
1.024
0.022
0.022
1.022
1.022
0.030
0.030
1.030
1.030
0.020
0.020
1.020
1.020
Maximum Yield
(mg/1-dry wt.)
0.2
0.9
15.0
0.2
0.2
1.2
23.7
0.3
0.4
1.8
11.8
0.3
0.7
3.4
20.3
0.6
-------
2. Discussion -
The control yields of the assay alga, SeTenastrum capri-
comutum. indicate that the potential for primary productivity
of Banks Lake was low during the spring sampling (04/03/75) and
moderate during the fall sampling (09/10/75). In all assays, a
significant increase in yield over that of the control occurred
when phosphorus was added alone, indicating phosphorus limi-
tation. Spikes with nitrogen and phosphorus simultaneously
•
resulted in maximum yield. Additions of nitrogen alone did not
stimulate growth significantly beyond the control yields.
The mean inorganic nitrogen to orthophosphorus ratios (N/P)
in the lake samples were approximately 6/1, 4/1, and 5/1 in the
spring, summer, and fall, respectively, suggesting nitrogen
limitation (an N/P ratio of 14/1 or greater generally reflects
phosphorus limitation).
-------
10
V. MEAN NUTRIENT CONCENTRATIONS IN UNGAGED STREAMS
Mean Total P Mean Total
Tributary (mg/1) (mg/1)
B-l Paynes Gulch 0.259 5.734
C-l Northrup Creek 0.196 2.219
D-l Feeder Canal 0.039 0.465
E-l Rusho Creek 1.120 8.019
F-l Unnamed Stream* 0.460 7.937
*This stream was sampled as a special interest tributary and lies
outside the watershed of Banks Lake.
-------
11
VI. LITERATURE REVIEWED
Dion, N.P., G.C. Bortleson, J.B. McConnell and L.M. Nelson. 1976.
Reconnaissance Data on Lakes in Washington. Volume 6. Washington
Department of Ecology, Water Supply Bulletin 43, Volume 6.
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.
Wolcott, E.E. 1965. Lakes of Washington, Volume II. Washington
Division of Water Resources, Water Supply Bulletin, 14 and 15.
-------
12
VII. APPENDICES
APPENDIX A
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6211 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 10 = acre/feet
Square kilometers x 0.3861 =• square miles
Cubic motors/see 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 B
TRIBUTARY FLOW DATA
-------
IS|FO°MATION Fpo WASHINGTON
1 1/1*1/76
E CODE 53"?
BANKS LAKE
v-)EA fir L * * F (
a.n
JAS
o.o
o.n
0.0
0.0
7P7.H
MA3
17.585
0.0
APP
MAV
NOPMALI7EO FLO*?(CMS)
JUM JOL AUG
H9.481 1ST. 100 179.557 199.209 1H4.909 112.
0.0 0.0 0.0 0.0 0.0 0.0
OCT
46.949
0.0
MOV
DEC
0.0
0.0
0.0
0 .(i
0.0
TOTAL DRAINAGE APF6 OF LAi<.E =
OF SUB-DWAlNfinF. AREAS =
7R7.P
0.0
MEAN MONTHLY FLO»5 AND DAILY FLO*S(CMS>
530^01
MONTH
YF.AS
MFAN FLOW OAY
FLO* DAY
TOTAL FLOW IN
TOTAL FLOW OUT
0.0
987.6?
FLOW DAY
FLOW
9
10
11
12
1
2
3
4
5
6
7
*
9
11
11
12
1
2
3
4
5
ft
7
8
9
10
11
12
1
?
3
4
S
ft
7
P
74
74
74
74
75
75
7S
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
7^
75
75
75
75
75
75
124.736 21
52.499
0.0
0.0 7
0.0 1*
0.0 6
7.033 -»
70.226 6
156.026 20
198.784
211.527 ?
163.671 14
0.008 ?1
0.010
o.oio •>
0.011 7
0.017
0.425
0.850
0.453 6
0.113 ?0
0.042
0.017 2
0.011 I*
50.857 21
92.596
89.170 2
0.932 7
-1.127 I";
-0.739 6
3.908 3
0.0 6
137.6,20 20
233.«97
277.788 P
173.016 14
85.517
0.0
0.0 19
0.0 16
0.0
42.192 27
174.432
222.854
191 . 705
0.008
o.om
o.oin
0.70B 27
0.076 22
0.0 18
0.011 19
92.200
91.747
-69.744
0.0 19
0.0 16
-50.829
0.0 ?7
140.16H
261,93)
18 P. 661
0.0
0.0
93.729
0.181
0.074
0.016
0.010
0.0
0.0
0.0
-------
FLOW TNFO^WATTOM
WASHINGTON
LAKF. CODE 531?
MONTH
LAKE
_r*<; AK,O 04 IL* FLOwS(CMS>
VFSP MEttN FLO* OAv
Q
in
11
i y
1
?
3
4
«;
fi
7
8
7<*
74
74
74
7S
75
7S
7S
7S
7S
7S
7S
0.
1.
0.
0.
0.
n.
n.
0.
0.
o.
n.
n.
0
c
0
0
0
0
0
n
0
0
0
0
FLO*
FLO*
FLOW
-------
APPENDIX C
PHYSICAL AND CHEMICAL DATA
-------
i. DATE
L FU TRONIC AT IOW
EF-'A-LAS (/EGAS
~K*'\\/\f>
530201
47 37 33.0 119 17 50.0 3
BANKS LAKE
53025 .AS
130S91
oo?5 FEFT
CLASS oo
04TF T|vE
F&0-' Or
TO DA/ FEET
7^/04/03 14 05 noon
14 fl^ 0005
14 05 0021
75/07/22 12 40 0000
12 40 0005
12 40 0015
1? 40 0037
75/09/10 11 50 0000
11 50 000^
11 50 0024
0001 0
Tf MR
CENT
00300
00
3. a
3.8
3.S
18.6
17.o
17.1
15.9
19.1
19.0
18.7
12.2
11.2
1 ?.4
«.4
^ * H
9.0
a.n
6.4
fl.4
8.4
00077
INCHES
1?0
156
00094
CMOUCTVY
FIELO
84
f-5
34
133
123
119
1 15
123
122
121
00400
PH
7.90
7.90
a.00
fl.30
«.4()
«.40
fl.OO
7.75
7.80
7.90
00410
T ALK
CAC03
MG/L
59
55
53
5H
6?
61
61
.62
63
64
0610
3-N
TAL
G/L
0.020K
0.020
0.020K
0.030
0.030
0.0?0
0.020
0.030
0.020K
0.020K
0062^)
TOT
-------
STOPET »
NATL E
EP4-LAS VEGAS
L DATF
^30202
47 53 32.0 119 1=1 47.0 3
ftAtoKS LAKE
53025 WASHINGTON
130531
OATF
F-O-..
TO
75/114/03
75/07/22
75/09/10
OATF
FPOM
TO
75/04/03
7=1/07/22
75/09/10
TIM
OF
DAY
14
14
14
14
14
12
12
12
12
12
12
11
1 1
11
11
11
11
E OEPT-
FFtT
35 0000
35 0005
35 0020
35 0050
35 007ft
10 0000
10 000^
10 001^
10 0032
10 004=;
10 0066
25 0000
25 0005
25 0015
25 00?o
25 0050
25 0079
TIME DEPTH
OF
DAY
14
14
14
14
14
12
12
12
12
12
2
1
1
1
1
1
1 1
FEET
35 0000
35 0005
35 0020
35 0050
35 0076
10 0000
10 000^
10 001^
in 0032
10 0045
10 0066
25 0000
P5 0005
25 001^
25 0020
25 0050
25 0079
00010
M ATFP
Tf HP
CENT
4.0
4.0
4.0
4.0
4.0
19.5
19.0
17.9
14.5
14.0
13.7
19.1
19.1
18.9
18.9
18.8
17.7
00665
PHOS-TOT
•10 /L P
0.017
0.031
0.01"
0.017
0.024
0.016
0.017
0.013
0.024
0.028
0.24ft
0.0?^
0.027
0.018
0.018
0.020
0.234
00300
DO
00077 00094
TRANSP CNQUCTVY
11F.PALES 2111202
"0"! FEET DEPTH CLASS 00
00400 00410 00610 0062S 006^0
ON T AL* NH3-N TOT KJFL N02?.M03
<=KCOI FIELD
MG/L
13.
12.
12.
12.
12.
8.
9.
8.
7.
7.
7.
8.
8.
S.
8.
H.
ft.
32217
TN-CHFS M]
0 114
t
?
4
2
8 120
0
6
6
2
4
2 210
2
2
4
4
4
00131
OPOMHO
83
83
85
p<*
84
1?7
125
135
115
109
113
122
122
123
122
122
123
Sll
8.00
P. 00
8.10
8 . 00
8.00
8.50
0.50
8.40
7.80
7.40
8.35
7.90
7.90
7.90
7.90
7.60
7.90
CAC03
MG/L
53
53
54
51
51
57
59
56
57
57
57
62
60
60
61
62
63
TOTAL
MG/L
0.020K
0.020
0.020
0.020K
0.020K
0.030
0.040
0.030
0.04Q
0.030
0.030
0.0?OK
0.020K
0.020K
0.0'OK
0.020K
.0.020
00^71
PHOS-OIS
Pj M-TOT^L O°THO
Mr,/L
n.200
0.200*
0.200*
0.200K
0.200K
0.200
O.?00*
0.200
0.200
0.300
0.400
0.200K
0.200
0.200*
0.200K
0.200K
0.200
MG/L
0.030K
0.020K
0.020K-
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
"R/L °
0.005
0.006
0.005
0.014J
0.012J
0.00^
0.014
0.011
0.007
0.010
O.C'15
0 . •) 0 9
0.0! .'1
o . c :• ft
O.C'ift
0 . C ', -^
0 . ', L -j
CHL^PHYL IMCOT LT
A
UG/L
27.
T.
7 '.
D C" M fit I N P
P F R C ^" '"vj T
2
0
9
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
STO°ET
NAT!_ F
EPA-LAS VEGAS
0»TF
=•30203
47 51 40.0 119 10 08.0 3
BANKS LAKE
53025
00011
DATE TI'.'E OEPTri WATEo
F=>0'-' Of TF'^P
TO DAY PE6T CKNT
7S/04/03 11 20 0000 3.7
11 20 00n= 3.^
1 1 21 OOIS 3.7
11 20 0030 3.7
11 20 0060 3.7
75/07/2? 11 40 0000 20.3
11 40 on OS 19.7
11 40 0015 19. 5
11 40 0036 15.3
11 40 0062 12.9
0000 19. q
10 50 000^ 19.9
10 50 0015 19.3
10 50 00?6 19.1
10 50 0045 18.5
10 50 0061 17.3
75/09/10 10 50
11EPALES
211 1202
006* FEET QPPTH CLASS
00300
00
>*G/|.
12.2
12.2
12.0
12.3
12.2
8.3
8.8
«.«
8.6
4.2
8.2
11.0
H.4
H.2
7.4
4.4
00077 00094
TFANSP CNOUCTVY
^ECCHI FIELD
INCHES MIC»OMHO
1^2 83
P3
83
84
83
144 127
127
125
110
111
210 125
125
122
121
120
118
00400
PH
SI.'
8.10
8.10
8.10
8.10
8.10
8.60
0.30
8.35
7.80
7.50
8.00
8.00
7.90
7.90
7.70
7.40
00410
T ALK
CACO?
MG/L
5S
56
57
59
58
68
68
54
53
58
59
61
61
60
61
62
00610
MH3-N
TOTAL
MG/L
0.020K
0.020K
0.020K
O.O'O
0.020K
0.030
0.030
0.030
0.040
0.040
0.020K
0.020K
0.020K
O.OPOK
0.0?OK
0.0?OK
nn
00625
TOT KJEL
N
MG/L
0.300
0.200K'
0.200K
0.200
O.?00
0.200X
0.200<
0.200K
0.200
0.400
0.200*
0.?OOK
0.200K
0.200K
0.200K
0.200K
00630
N02S.N03
N-TOTaL
Mfi/L
0.020K-
0.020K
0.020K
0.0?OK
0.020K
0.020K
0.020K
0.020
0.020
o.n'OK
0.020K
0.020K
0.020K
0.020K
0.020K
0.05"
00671
PHOS-DIS
O«TWO
MG/L P
0.014J
O.Ol^J
0.004
0.009
0.00*
0.004
0.00*
o.oioj
0.007
0.0?3
0.003
0.004
0.005
0.006
o.ou
0.02P
DATE
FRO"
TO
75/04/03
7S/07/2?
75/09/10
00665 32217 00031
TIME OEPTH PHO^-TOT CHLRPHYL IMCDT LT
OF A. BFMNING
DAY FFET
1
1
1
1
1
1
I 20
20
I 2"
20
20
1 40
1 40
I 40
I 40
1 un
0 50
0 50
0 50
10 50
10 50
1 0 50
ooon
000^
001=.
0031
00hr»
0000
0005
001^
0036
006?
0000
ooos
001^.
0026
004^
0061
MG/L P
0
0
0
0
0
0
0
n
0
0
0
0
0
0
0
0
.019
.017
.017
.021
.021
.Oil
.013
.01 1
.021
.nsi
.015
.014
.015
.021
.021
.038
UG/L PFKCt'NT
12.6
2.0
1
2.*
K VALUE KNOWN TO BE LESS
THAN INDICATED
J VALUE KNOWN TO BE ESTIMATED
-------
5TOP.ET yE
k!ATL FijT^OPnl
EPft-LAS VEG4S
DATf. 7ft/ 11/16
OfiTF
FJQ"
TO
75/04/03
75/07/22
75/09/10
00010
TI»E DEPTH *AT£S
OF TF^P
otY FFET
10
1"
l 0
10
10
11
1 1
11
11
10
10
10
10
45
45
45
45
45
10
in
10
10
25
25
25
25
ooon
OOQS
0015
002=-
003°
nnon
ooos
0021
002ft
0000
OOOS
0015
0031
CFNT
5.1
5.3
5.1
5.1
5.0
21.4
2n.i
19.Q
17.4
20.8
20.0
19. ft
18.7
00300
00
12.1
12.0
9.0
ft.4
9.ft
10.4
10.0
6.2
0007?
=ECCHT
INCHES
00094
CNOUCTVY
FIELD
96
530204
47 51 33.0 11^ Of, 35.0 3
RANKS LAKE
5.3025 WASHINGTON
130591
11EPALES
FEET
1202
00400 00410
PH T aLK
CAC03
CLASS
00610 00*25 00ft->0
NH3-N TOT KJfL NO?K.N03
TOTftL M N-TOTiL
Mfi/L M^/|.
00ft71
OS-n
O^TnO
90
89
90
90
89
129
129
125
125
136
127
124
123
R.30
R.30
8.25
«.25
8.25
R.95
8.96
8.30
7.80
8.40
8.60
8.50
7.90
53
59
57
59
5ft
64
65
66
65
70
69
71
61
0.020K
0.020
0.020
0.020
O.O'O
0.020
0.030
0.0?0
0.020
0.020K
0.020K
0.020K
0.020K
0.400
0.300
0.300
0.300
0.300
0.200
0.200
n.200
0.200*
o.?oo<
0.200K
0.200
0.200
0.020*
0.020
0.0>0
0.020K
0.020*
0.n?OK
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.004
0.014J
0.005
0.004
0.007
0.010.J
0.012 J
0.010J
0.011J
0.004
0.003
0.003
0.005
n»TF TIME DE^T'-1 P^O^-
Fonw OF
TO
75/04/03
75/07/22
7^/09/10
DAY FEET i*"i/L
1
1
1
1
1
1
1
I
1
0
0
0
n
0
1
1
1
1
11
1
1
1
0
0
n
45
45
45
45
45
1 1
10
10
10
25
25
25
2=1
ooon
0005
on is
0025
003s*
0000
000=;
0020
002*
on oo
000=;
001S
0031
0
0
n
0
0
0
0
0
0
n
n
n
n
•
•
•
•
•
*
•
•
•
•
•
•
*
TOT
P
035
039
030
028
0^5
017
018
02?
043
021
021
023
03?
32217 00031
CHLRPHYL TMCDT I.T
UG/L PFWCENT
12.8
5.5
11.6
K VALUE KNOWN TO BE LESS
THAN INDICATED
J VALUE KNOWN TO BE ESTIMATED
-------
=ETQIEVAL OATF 76/11/16
WATL EUTPOPNICAT 10'j
EPA-LAS VEGAS
S30?OS
47 56 26.0 119 03 32.0 3
LAKE
006^. FEET OE^TH CLASS On
Of TF
par,.-
Tf!
75/04/03
75/07/??
75/09/10
TIv.
OF
DAY
10
in
10
10
10
10
10
10
10
10
10
10
10
10
in
10
E
on
on
00
00
00
45
45
45
45
45
00
00
00
00
00
00
DFPT-
FEET
noon
000^
00?n
003 T
0061
nonn
000^
nnis
0035
0061
onon
0005
001s
0024
0045
0066
0001 n
.,-ATEP
JC'tp
C F. 'J T
17.?
15.R
15.3
14.9
14.1
2n.4
?0.3
2". 2
20.2
20.1
1".4
On665
DATE TI"E DEPT-» PHO^-TOT
FPO-'.
TO
75/04/03
75/07/22
75/09/1 0
OF
DAY
10
10
10
10
in
10
in
0
0
0
0
0
0
0
10
1 0
00
on
on
00
on
45
45
4s;
45
45
no
no
on
on
no
0"
FEET
OOOn
000^
0020
0030
0060
onon
ooo1^
nni5
003^
0061
ooon
onnc
oni-
002*
()••)<**
OQ6»-
MG/L P
0
n
n
n
0
n
n
C
0
0
n
0
0
0
0
0
.033
.020
.020
.02'
.ni6
.013
.017
.026
.016
.019
.ni7
.021
.021
.Olu
,0?0
.03?
00300
00
"G/L
I'..
12.
12.
12.
12.
9.
9.
9.
g.
9.
8.
8.
8.
8.
8.
6.
3?217
n
o
1
0
i
2
2
4
4
2
6
6
2
6
2
4
CHLRPHYL
A
UG/L
12.
2.
T.
9
2
8
00077
T»- AUjSP
SECCrlT
TNC"t5
1"8
156
204
00031
1MCDT LT
P^MNING
PERCENT
FIELD
•-»4
TVY
N'HO
P7
87
85
87
85
115
109
109
109
109
126
125
1?4
133
127
126
00400
PH
SM
P. 30
P.2f)
P. 20
8.15
B.15
8.30
8.20
8.15
P. 10
7.90
8.10
8.05
8.00
7.90
7.80
7.60
00410
T ALK
CAC03
MG/L
60
57
55
53
51
57
61
S8
59
60
. 65
66
66
65
67
70
00611
NH3-N
TOTAL
MG/L
O.O'O
0.030
0.020
0.030
0.030
0.020K
0.030
0.030
0.030
0.040
0.020K
0.0'OK
0.020K
0.020K
0.020K
0.020
00625
TOT KJFL
N
MG/L
O.ano
0.300
0.300
0.300
0.300
0.?OOK
0.200K
0.200K
0.200*
0.200K
0.?OOK
0.200K
0.?OOK
n.2ooK
0.200H-
0.200*
nn6^n
N.0'*-N03
N-T("iT«t.
*G/L
0.030
n.n20K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
n.n2fiK
0.020K
0.020K
0.020K
0.020K
0.020K
n0671
PrtOS-OIS
O^T-0
Mft/L °
0.005
0.006
0.002
0.003
0.005
0.011J
0.017J
0.01 1J
0.013.1
0.014J
n.006
o.no7
0.013
0.010
0.010
0.017
J VALUE KNOWN TO BE ESTIMATED
K VALUE KNOWN TO BE LESS
THAN INSICATED
-------
APPENDIX D
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STO-ET 9ETRIE.V4L OATF 7^/11/I
NATL EUTPOPHICflTIO
F.0A- LA<; VEGAS
5302A1
47 37 04.0 11<* IS 00. 0 4
MAIN CANAL
S'l 7.5 COULEE CIT>
0/HANKS LAKE
SMPL FROU DRY FALLS DAM
11EPALES ^lll?"
OOOP FEET DEPTH CLASS 00
"I NW CITV
TO
74/09/21
75/04/06
75/04/27 16
7S/05/20 ?3
TIVF OEPT^
OF
HAV FEET
15 0^
1 A 45
16 ?5
?3 0°
?0 00
?1 ?5
00630
NiV.NCH
M-TOT A|.
M d/L
0.01 4
n . 0 0 5
0 . 0 1 0
0.015
0.005
0. 005
006P5
TOT KJEL
N
MG/L
o.ino
0.100
0.150
0.250
0.050K
o. ino
00610
MH3-M
TOTAL
MG/L
n.007
0.030
0.065
0.035
0.015
0.015
00671
OHOS-DIS [
ORTHO
MR/L p
0.005K
0.010
0.055
0.020
0.010
0.005
00665
'HOS-TOT
M(?/|_ '->
0.017
0.010
0.059
0.040
0.022
0.030
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
PETBIEVAI. OATE
N«TL FUTROPHICATIO*.- SURVEY
VEGA?
530281
47 45 1?.0 119 13 10.0 4
PAYNES GULCH
S3 7.S ST"BOT PK S*
T/R6NKS LAKE 1305Q1
fl»OG ON HwY 155 11 MI NE OP COULEE CITV
ooon FFF.T
CLASS no
DATF
FROM
TO
74/04/21
74/12/07
75/01/19
75/02/06
75/02/16
75/03/03
75/03/19
75/04/06
75/04/27
75/05/20
75/07/02
TI^E DEPT-
0*-"
nav FFET
14
13
13
15
15
17
16
20
17
22
19
45
43
20
25
4P
35
00
00
00
45
15
00630 00625
J NO?«,'MO? TOT KJEL
N-TOTAl N
MG/L
P.760
5.200
5.600
6.900
5.500
. 1 .6*0
6.000
4.600
4.600
4.600
MG/L
0
i
0
0
0
2
2
0
0
0
0
.450
.000
.600
.700
.900
.900
.600
.'-J50
.POO
.800
.300
00610 00671 00665
MH3-M PHOS-niS PHOS-TOT
TOTAL O^THO
MR/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
030
005K
104
112
104
144
010
040
060
065
055
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
p
020
010
104
152
12R
264
130
100
060
045
MG/
0
0
0
0
0
0
0
0
0
0
0
L °
.025
.150
.104
.152
. 140
.910
.940
. 160
.121
.090
.060
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
RETRIEVAL
OATF 76/11/16
S'JPVt'v
EPA- LAS VEGAS
S30PC1
»7 S? 25.0 119 03 40.0 4
f-JORTHRijP CPEEK
S3 7.5 STMHOT RK SE
T/BANKS LAKE
SPDG ON DRT RD 7 MI S OF ELECTRIC CITr
0000 rFET OFfTH CLASS 00
00630 OQ625
OaTF TIME OEPT" NO'i^N03 TOT KJEL
FaQw OF M-TOTiL N
TO
74/09/21
74/12/07
75/03/19
75/04/06
75/04/27
75/05/20
75/07/02
75/08/14
DA'
18
13
17
20
?0
?2
19
?0
' FEF.T
IS
05
10
45
45
30
00
oo
MR/L MG/L
0
0
3
3
0
1
0
0
.334
.fioo
.850
.670
.7«0
.150
.650
.390
0.
0.
1.
1.
0.
0.
0.
0.
?on
750
450
450
750
400
500
575
00610 00671 00665
NJH3-N PHOS-DIS PHOS-TOT
TOTSL QOTMO
MG/L M3/L B WG/L P
0
0
0
0
0
0
0
0
.015
.035
.l°5
.047
.040
.035
.055
.045
0
0
0
0
0
0
0
.110
.330
.210
.060
.095
.125
.120
0.110
0.095
0.520
0.3«0
0.060
0.1?0
0.14Q
0.140
-------
L 0»TE
NATL FUTrtOPHICATIO>\i
FPA- LAS
7K/11/16
530801
47 19 35.0 119 56 40.n 4
FEEDE« CANAL
=>•* 7.5 ELECTRIC CTY
T/8AMKS LAKE
SEC »D .? MI sw OF JCT WITH
11EPALES 211131
noon FEET DFOTM CLASS oo
DATE
FDOM
TO
74/09/21
74/12/07
75/05/20
75/07/02
75/08/14
TIME nFPT
OF
DAY
13
) 1
22
19
?0
FEKT
51
?n
00
45
30
00630 006?5
w NO?\N03 TOT KJEL
N-Tn
M«
0
0
0
n
0
TAl.
XL
.OM
.050
.0^0
.005
.015
N
MG
0
i
0
0
0
XL
. 1 0 0 K
.101
.350
.200
.050
00610
N!-"3-N
TOTAL
MG/L
0.01S
0.010
0.020
0.030
0.025
01671 00665
PHOS-OIS PHOS-TOT
MG/L
0.
0.
0.
0.
0.
0
p
005
DOS
025
010
015
MG/L
0.
0.
0.
0.
0.
D
005
060
070
020
040
K VALUE KNOWN TO BE LESS
THAN INDICATED
-------
NATL FJT»OPHICATION
Fpft- LAS VEGfl'i
D4TF TIME
FROM Of
TO OAV
7c/n-»/m 17 Qi
75/03/19 16 55
75/04/06 19 30
75/14/27 16 00
00*30
MO'^.NO"'
N-TOTAL
FEET
006?5
TOT KJEL
N
3.300
10.500
4.500
5.000
2.700
1.650
00610
MH3-N
TOTAL
MG/L
0.200
0.060
0.1«5
0.030
00671
PriOS-OIS
MG/L P
0.?7?
0.300
0.035
530?E1
47 48 05.0 ll<* 06 20.0 4
RAS"0 CREEK
53 7,3 STMHOT PK SF
T/BANKS LAKE
4T CO 49NE XING « MI N OF
11EPALES ?l
nono FEET DEPTH CLASS on
00665
DHOS-TOT
1.800
0.710
0.070
-------
f"«TL El
EPA- LAS VFG4S
04TF 7?./ll/16
'''.RVF.Y
53021F
47 30 3^.0
OS 0?.0 4
S3 7.
T/ftANKS LAKE
flT RO S ME XING .5 MI S OF JCT * HwY
oono FEET
CLASS no
DATE
TO
TI«-'E
FEET
IS 31
1^ OS
75/f>4/27 15 3S
00630
MO's,N03
M-T^T4L
'•1P/L.
7. inn
l i .son
0.960
006?S
TOT KJEL
M
MG/L
1 . * 0 0
1 .=>00
0.750
00610
VH3-M
TOTflL
MG/L
0.270
0.0Q5
0.035
00671
PHOS-DIS
OPTHO
MG/L P
0.320
0.240
0.090
0066S
PHOS-TOT
MG/L P
0.720
O.S60
0.100
-------
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 GREEN LAKE
5306 KEECHELUS LAKE
5307 MAYFIELD LAKE
5309 MEDICAL LAKE
5309 MOSES LAKE
5310 07ETTE LAKE
5311 SAMMAMISH LAKE
5312 WHATCOM LAKE
5313 LOWER GRANITE RESERVOIR
MEDIAN
TOTAL P
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
027
021
005
014
027
007
014
275
115
010
015
009
033
MEDIAN
INORG N
0
0
0
0
0
0
0
0
0
0
0
0
0
.105
.040
.070
,060
,050
,040
.100
.225
.150
.110
.210
.320
.150
500-
MEAN
343.
364.
111.
303.
415.
280.
402.
401.
463.
403.
374.
288.
435.
SEC
000
533
900
667
000
250
000
714
600
333
000
000
500
MEAN
CHLORA
4
7
0
14
2
1
4
16
29
1
7
3
4
.822
.373
.905
.537
.983
.400
.250
.425
.060
.225
.290
.422
.875
15-
MIN DO
15.
10.
6.
14.
10.
9.
10.
15.
14.
000
800
400
200
600
200
600
000
600
7.200
14.
10.
7.
600
HOO
200
MEDI/
DISS
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
ORTt
007
007
003
010
009
002
007
166
038
009
006
009
022
-------
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
5304 DIAMOND LAKE
5305 GREFN LAKE
530ft KEECHELHS LAKE
5307 MAYFIELD LAKE
5309 MEDICAL LAKE
5309 MOSES LAKE
5310 OZETTE LAKE
5311 SAMMAMISH LAKE
5312 WHATCOM LAKE
5313 LOWER GRANITF RESERVOIR
MEDIAN
TOTAL P
29 1
42 I
100 1
6? i
29
92
62
0
8
75
50
83
17
[ 3)
*
[ 5)
! 12)
I 7)
( 3)
( 11)
( 7)
( 0)
( 1)
( 9)
< 6)
( 10)
( 2)
MEDIAN
INORG N
. 50 (
100 <
67 I
75 (
83 (
92 (
58 (
8 (
29 (
42 (
• 17 <
0 (
29 (
6)
12)
8)
9)
10)
11)
7)
1)
3)
5)
2)
0)
3)
500-
MEAN SEC
67 (
58 (
100 (
75 (
17 I
92 1
33 1
42 1
0 1
25 (
50 i
83 i
8 i
8)
: 7>
: 12)
: 9)
; 2)
t ii>
[ 4)
I 5)
! 0)
t 3)
! 6)
( 10)
( 1)
MEAN
CHLORA
50 (
25 1
100 (
17 1
75 1
83 1
58 1
8 1
0 i
92 i
33 i
67
42
: 6)
: 3)
: 12)
! 2)
; 9)
! 10)
: 7)
t i)
[ 0)
: ID
( 4)
( 8)
( 5)
15-
MIN DO
4 (
46 1
100 (
33 1
6? I
75 I
62 1
4 I
21 i
87 I
21 '
46
87
: t f»
: 5)
: 12>
: 4)
t 7)
t 9)
! 7)
[ 0)
I 2)
( 10)
( 2)
( 5)
( 10)
MEDIAN
DISS ORTMO
58 (
71 1
92 (
?5 (
46 1
100 1
71 1
0 1
8 I
33 i
83
46
17
: 7>
: *>
: in
! 3)
: 5>
: i?)
: P)
[ 0)
i i)
[ 4)
( 1")
( 5)
( 2)
------- |