U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE mCBRIDE
JOHNSON COUNTY
IOWA
EPA REGION VII
WORKING PAPER No, 500
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440
-------
REPORT
ON
LAKE mCBRIDE
JOHNSON CQUNIY
IOWA
ERft REGION VII
WORKING PAPER No, 500
WITH THE COOPERATION OF THE
IOWA DEPARTMENT OF ENVIRONMENTAL QUALITY
AND THE
IOWA NATIONAL GUARD
AUGUST, 1976
-------
CONTENTS
Page
Foreword ii
List of Iowa Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 9
V. Literature Reviewed 14
VI. Appendices 15
-------
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to 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 non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §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 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.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Iowa Department of Environ-
mental Quality for professional involvement, to the Iowa National
Guard for conducting the tributary sampling phase of the Survey,
and to those wastewater treatment plant operators who voluntarily
provided effluent samples and flow data.
The staff of the Water Quality Division of the Department of
Environmental Quality 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 Joseph G. May, the Adjutant General of Iowa,
and Project Officer Colonel Cleadeth P. Woods, who directed the
volunteer efforts of the Iowa National Guardsmen, are also grate-
fully acknowledged for their assistance to the Survey.
-------
IV
LAKE NAME
Ahquabi
Big Creek Reservoir
Black Hawk
Clear
Darl ing
Lost Island
MacBride
Prairie Rose
Rathbun Reservoir
Red Rock Reservoir
Rock Creek
Silver
Spirit
Viking
West Okoboji
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF IOWA
COUNTY
Warren
Polk
Sac
Cerro Gordo
Washington
Clay, Palo Alto
Johnson
Shelby
Appanoose, Wayne
Marion
Jasper
Worth
Dickinson
Montgomery
Dickinson
-------
91'34'
91' 30'
91'26
LAKE MACBRIDE
<8> Tributary Sampling Site
X Lake Sampling Site
^f Sewage Treatment Facility
J^3 Drainage Area Boundary
1 ? ? f ?Km.
3Mi.
Scale
41'50—
Iowa
Map Location
4148—
-------
LAKE MACBRIDE
STORE! NO. 1907
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake MacBride is eutrophic. It
ranked tenth in overall trophic quality when the 15 Iowa lakes
and reservoirs sampled in 1974 were compared using a combination
of six lake parameters*. Five of the water bodies had less median
total phosphorus, four had less and two had the same median ortho-
phosphorus, 13 had less median inorganic nitrogen, seven had less
mean chlorophyll a_, and four had greater mean Secchi disc trans-
parency. Marked depression of dissolved oxygen with depth occurred
at sampling station 1 in July and September and at station 2 in
July.
Survey limnologists noted areas of high turbidity in the
south arm of the lake and observed beds of macrophytes in the
vicinity of station 1. An algal bloom was in progress through-
out the lake in September.
B. Rate-Limiting Nutrient:
Due to significant changes in nutrient levels in the samples,
the algal assay results are not representative of conditions in
the lake at the times the samples were collected (04/18/74 and
09/24/74).
The lake data indicate phosphorus limitation in April and
September.
* See Appendix A.
-------
2
C. Nutrient Controllability:
1. Point sources—The only known point source of phos-
phorus to Lake MacBride is the Solon wastewater treatment plant
which contributed nearly 42% of the total load reaching the
reservoir during the sampling year. Most of the sewage from
the MacBride State Park facilities is transported out of the
drainage basin for treatment and disposal with the remainder
being treated in septic tanks situated well away from the lake*.
During the sampling year, the lake received a total
phosphorus loading over one and a half times that proposed
by Vollenweider (Vollenweider and Dillon, 1974) as a eutrophic
loading (see page 13). It is calculated that 90% phosphorus
removal at the Solon wastewater treatment plant would reduce
the total phosphorus loading to 0.42 g/m2/year. This loading
would still exceed Vollenweider's eutrophic loading, and it is
questionable whether the reduction would result in a significant
improvement in the trophic condition of the lake.
2. Non-point sources--It is estimated that non-point sources
contributed about 52% of the total phosphorus load to Lake
MacBride during the sampling year. Mill Creek, the major
tributary, contributed about 16% of the total phosphorus load.
Reportedly, many ducks utilize Lake MacBride during spring and
fall migrations (Anonymous, 1974). However, waterfowl counts are
* Kenyon, 1976.
-------
3
not made routinely at the lake (Harrison, 1976), and the sig-
nificance of the nutrient contributions of migrating ducks can-
not be assessed.
-------
4
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphemetry :
1. Surface area: 3.84 kilometers2.
2. Mean depth: 7.3 meters.
3. Maximum depth: 14.2 meters.
4. Volume: 28.032 x 106 m3.
5. Mean hydraulic retention time: 2.2 years.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/s_ec)*
Mill Creek (B-l) 21.5 0.13
Minor tributaries &
immediate drainage - 44.6 0.28
Totals 66.1 0.41
2. Outlet -
MacBride Dam spillway 69.9** 0.41
C. Precipitation***:
1. Year of sampling: 74.5 centimeters.
2. Mean annual: 85.3 centimeters.
t Table of metric conversions—Appendix B.
tt Harrison, 1975.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
-------
5
III. LAKE WATER QUALITY SUMMARY
Lake MacBride was sampled three times during the open-water season
of 1974 by means of a pontoon-equipped Huey helicopter. Each time,
samples for physical and chemical parameters were collected from a
number of depths at three stations on the lake (see map, page v).
During each visit, a single depth-integrated (4.6 m or near bottom
to surface) sample was composited from the stations for phytoplankton
identification and enumeration; and during the first and last visits,
18.9-liter depth-integrated samples were composited for algal assays.
Also each time, a depth-integrated sample was collected from each
of the stations for chlorophyll ^analysis. The maximum depths sam-
pled were 12.5 meters at station 1, 4.0 meters at station 2, and 3.4
meters at station 3.
The sampling results are presented in full in Appendix D and are
summarized in the following table (the July nutrient samples were
not preserved properly and were not analyzed).
-------
PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY (MCROMOI
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02*N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 4/18/74)
3 SITES
RANGE
7.8
8.0
233.
7.7
122.
0.029
0.006
1.510
0.060
0.900
2.030
2.580
7.1
0.6
- 12.0
- 10.6
- 293.
8.5
- 148.
- 0.106
- 0.036
- 3.500
- 0.520
- 1.100
- 3.930
- 4.600
- 14.7
1.7
MEAN
10.2
9.3
258.
8.1
130.
0.061
0.012
2.235
0.293
1.000
2.528
3.235
10.7
1.0
MEDIAN
10.2
9.6
252.
8.1
125.
0.058
0.009
2.100
0.290
1.000
2.390
3.095
10.4
0.8
CHEMICAL CHARACTERISTICS FOR LAKE MACBRIDE
STORET COOE 1907
2ND SAMPLING ( 7/ 3/74)
3 SITES
RANGE MEAN MEDIAN
11.6 - 25.5 21.5 23.5
0.6 - 8.2 5.3 7.2
173. - 365. 298. 315.
7.3 - 8.9 8.0 8.1
»«««»« _»««**««**»*»««*>•*«»««
«*«*** .»*>•*••»«««««*««»<•*««
«*>«•« .«*»»*««*<>»*«***««««*«»
«<«*»« _o««»»«»*«e»«*««»«*««o«
4.7 - 11.2 8.9 10.9
0.9 - 1.8 1.3 1.2
3RD SAMPLING ( 9/24/74)
3 SITES
RANGE
12.0
0.0
113.
6.8
114.
0.021
0.006
0.040
0.030
0.700
0.470
1.120
13.7
0.5
- 17.7
- 11.6
- 259.
8.6
- 173.
- 0.347
- 0.016
- 0.850
- 4.160
- 4.600
- 4.200
- 4.640
- 46.4
1.3
MEAN
16.3
6.4
233.
7.8
133.
0.090
0.011
0.555
0.711
1.475
1.266
2.030
31.5
0.8
MEDIAN
16.8
7.6
245.
8.0
127.
0.063
0.010
0.625
0.160
1.100
0.955
1.850
34.5
0.7
-------
B. Biological characteristics:
1. Phytoplankton -
Sampli ng
Date
04/18/74
07/03/74
09/24/74
2. Chlorophyll a_ -
Sampling
Date
04/18/74
07/03/74
09/24/74
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Centric diatoms
Flagellates
Cryptomonas sj).
Aphanizomenon sp.
Stephanodiscus sj>,
Other genera
Total
Melosira sp.
Oocystis sp.
Flagellates
Cryptomonas sp.
Lepocinclis sjj.
Other genera
Total
Melosira sp.
Flagellates
Pennate diatoms
Cryptomonas sp.
Synedra sp.
Other genera
Total
Station
Number
1
2
3
1
2
3
1
2
3
Algal Units
per ml
8,889
3,081
652
593
474
118
13,807
4,275
792
317
198
119
315
6,016
5,076
1,232
859
672
635
1,268
9,742
Chlorophyll a
(yg/D
7.1
14.7
10.4
11.2
4.7
10.9
13,
34.
46.4
-------
8
C. Limiting Nutrient Study:
Significant changes in nutrient levels occurred in the assay
samples prior to the beginning of the assays, and the results
are not indicative of conditions in the lake at the times the
samples were taken (04/18/74 and 09/24/74).
The lake data indicate phosphorus limitation in April and
September (the mean inorganic nitrogen/orthophosphorus ratios
were 211/1 and 115/1, respectively).
-------
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the Iowa National
Guard collected monthly near-surface grab samples from each of the
tributary sites indicated on the map (page v), except for the high
runoff months of April, May, and June when two samples were collected.
Sampling was begun in August, 1974, and was completed in July, 1975.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the Iowa District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for the lake outlet were calculated
using mean concentrations and the mean flow at station A-l. Nutrient
loads for Mill Creek were calculated using the mean concentrations at
sampling station B-2 and the mean flow at station B-l (nutrient concen-
trations at station B-l were not used because of incomplete mixing of
the Solon wastewater treatment plant effluent in the creek at the sam-
pling point; however, B-l data are included in Appendix E). Nutrient
loads shown for Mill Creek do not include loads contributed by the
wastewater treatment plant.
Nutrient loads for unsampled "minor tributaries and immediate drain-
age" ("II" of U.S.G.S.) were estimated using the nutrient loads in Mill
Creek, in kg/km2/year, and multiplying by the II area in km2.
-------
10
The operator of the Solon wastewater treatment plant provided
monthly effluent samples but could not provide corresponding flow
data, and nutrient loads were estimated at 1.134 kg P and 3.401 kg
N/capita/year. Results of analyses of the Solon samples are included
in Appendix E.
A. Waste Sources:
1. Known municipal* -
Pop. Mean Flow Receiving
Name Served Treatment (m3/d) Water
Solon 950 trickling 359.6** Mill Creek
filter
2. Known industrial - None
* Treatment plant questionnaire.
** Estimated at 0.3785 m3/capita/day.
-------
11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Mill Creek 465 18.0
b. Minor tributaries & immediate
drainage (non-point load) - 980 37.9
c. Known municipal STP's -
Solon 1,075 41.6
d. Septic tanks - None
e. Known industrial - None
f. Direct precipitation* - 65 2.5
Total 2,585 100.0
2. Outputs -
Lake outlet - MacBride Dam 725
spillway
3. Net annual P accumulation - 1,860 kg.
* See Working Paper No. 175.
-------
12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yjr total
a. Tributaries (non-point load) -
Mill Creek 18,705 28.8
b. Minor tributaries & immediate
drainage (non-point load) - 38,800 59.8
c. Known municipal STP's -
Solon 3,230 5.0
d. Septic tanks - None
e. Known industrial - None
f. Direct precipitation* - 4,145 6.4
Total 64,880 100.0
2. Outputs -
Lake outlet - MacBride Dam 28,590
spillway
3. Net annual N accumulation - 36,290 kg.
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Mill Creek 22 870
* See Working Paper No. 175.
-------
13
E. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated" Total Accumulated
grams/m2/yr 0.67 0.48 16.9 9.5
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Lake MacBride:
"Dangerous" (eutrophic loading) 0.36
"Permissible" (oligotrophic loading) 0.18
-------
14
LITERATURE REVIEWED
Anonymous, 1974. Lake MacBride State Park brochure. IA Cons.
Comm., Des Moines.
Harrison, Harry M., 1975. Personal communication (lake morphemetry).
IA Cons. Comm., Des Moines.
, 1976. Personal communication (numbers of waterfowl
at Lake MacBride). IA Cons. Comm., Des Moines.
Kenyon, Lawrence (Park Ranger), 1976. Personal communication (State
Park sewage disposal system). MacBride State Park, Solon.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Pub!. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
-------
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN RANMNGS
LAKE
CODE LAKE NAME
1901 LAKE ACQUABI
1903 8IG CREEK RESERVOIR
1903 BLACK HAWK LAKE
1904 CLEAR LAKE
1905 LAKE DARLING
1906 LOST ISLAND LAKE
1907 LAKE MACBRIDE
1908 PRAIRIE ROSE LAKE
1909 RATHBUN RESERVOIR
1910 RED ROCK LAKE
1911 ROCK CREEK LAKE
1912 SILVER LAKE
1913 SPIRIT LAKE
1914 VIKING LAKE
1915 WEST LAKE OKOBOJI
MEDIAN
TOTAL P
0.06?
0.046
0.185
0.059
0.077
0.146
0.061
0.056
0.071
0.180
0.065
0.193
0.041
0.075
0.046
MEDIAN
INO«G N
0.335
6.465
0.130
0.070
1.475
0.065
2.035
0.210
1.170
1.880
1.400
0.565
0.090
0.130
0.060
500-
MEAN SEC
469.333
438.500
488.167
465.125
482.500
421.167
458.444
463.667
475.889
473.400
480.500
482.667
422.667
459.000
380.444
MEAN
CHLOrtA
8.600
16.867
49.740
17.400
13.817
36.100
17.067
17.350
12.039
14.730
18.367
95.300
12.622
26.033
7.722
15-
MIN 00
8.200
14.800
15.000
8.600
9.200
8.400
15.000
8.600
14.000
14.000
8.400
10.000
9.000
14.200
15.000
MEDIAN
OISS OKTHO P
0.009
0.011
0.020
0.010
'0.012
0.021
0.010
0.010
o.ooa
0.104
0.007
0.034
0.007
0.017
0.017
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
1901 LAKE ACOUA6I
1902 BIG CREEK RESERVOIR
1903 BLACK HAWK LAKE
1904 CLEAR LAKE
1905 LAKE OASLING
1906 LOST ISLAND LAKE
1907 LAKE MACBRIDE
1908 PRAIRIE ROSE LAKE
1909 RATHBUN RESERVOIR
1910 RED ROCK LAKE
1911 ROCK CREEK LAKE
1912 SILVER LAKE
1913 SPIRIT LAKE
191
10)
8)
12)
0)
10)
5)
5)
12)
7)
9)
4)
0)
MEDIAN
DISS ORTHO P
79 (
50 (
21 (
64 (
43 (
14 (
64 (
64 (
86 (
0 (
96 (
7 (
96 (
32 (
32 (
11)
7)
3)
8)
6)
2)
8)
8)
12)
0)
13)
1)
13)
4)
4)
INDEX
NO
422
296
110
382
235
324
263
375
319
167
314
107
504
250
428
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
1 1913 SPIRIT LAKE 504
2 1915 WEST LAKE OKOBOJI 428
3 1901 LAKE ACOUA8I 432
4 1904 CLEAR LAKE 382
5 1908 PRAIRIE ROSE LAKE 375
6 1906 LOST ISLAND LAKE 324
7 1909 RATHBUN RESERVOIR 319
8 1911 ROCK CREEK LAKE 314
9 1902 BIG CREEK RESERVOIR 296
10 1907 LAKE MACBRJDE 263
11 1914 VIKING LAKE 250
12 1905 LAKE DARLING 235
13 1910 RED ROCK LAKE 167
14 1903 BLACK HAWK LAKE 110
15 1912 SILVER LAKE 107
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
-4
Cubic meters x 8.107 x 10 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR IOWA
12/23/75
LAKE CODE 1907
MACBRIDE
SUB-DRAINAGE
TRIBUTARY AREAIS8 KM)
1907A1
1907B1
190722
69.9
21.5
48.4
OF LAKE (SO KM) 69.
JAN
0.31
0.09
0.21
FE8
0.73
0.23
0.51
MAR
0.89
0.27
0.62
.9
APR
0.
0.
0.
57
17
39
MAY
0.63
0.19
0.44
NORMALI2ED FLOWS (CMS)
JUN JUL AUG
0.59
0.18
0.41
0.36
0.11
0.25
0.18
0.06
0.13
SEP
0.17
0.05
0.12
OCT NOV
0.13 0.23
0.04 0.07
0.09 0.16
DEC MEAN
0.13 0.41
0.04 0.13
0.09 0.28
SUMMARY
OTAL
IUM OF
DRAINAGE AREA OF LAKE =
SUB-DRAINAGE AREAS =
69.9
70.0
TOTAL FLOW
TOTAL FLOW
IN =
OUT *
4.92
4.92
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
1907A1
190781
19072Z
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
74
74
74
74
74
75
75
75
75
75
75
75
74
74
74
74
74
75
75
75
75
75
75
75
74
74
74
74
74
75
75
75
75
75
75
75
0.13
0.14
0.09
0.12
0.57
0.45
0.27
0.68
0.65
0.27
0.15
0.03
0.04
0.05
0.03
0.04
0.20
0.14
0.08
0.21
0.20
0.08
0.05
0.01
0.10
0.11
0.07
0.10
0.42
0.31
0.18
0.45
0.45
0.19
0.11
0.02
18
8
20
19
19
18
9
15
7
5
3
6
18
8
20
19
19
18
9
15
7
5
3
6
FLOW DAY
0.10
0.15
0.08
0.14
1.08
0.28
0.17
1.84
0.82
0.31
0.20
0.06
0.03
0.05
0.03
0.05
0.37
0.09
0.05
0.57
0.25
0.09
0.07
0.02
21
19
19
21
19
19
FLOW DAY
FLOW
0.45
0.23
0.15
0.14
0.07
0.05
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORE! RETRIEVAL DATE 75/13/33
190701
41 47 35.0 091 34 23.0
LAKE MACBR10E
19103 IOWA
HEP ALES
3
3111202
0045 FEET
DEPTH
DATE
FROM
TO
74/04/18
74/07/03
74/09/24
TIME
OF
DAY
10 10
10 10
10 10
10 10
10 40
10 40
10 40
10 40
10 40
11 00
11 00
11 00
11 00
11 00
11 00
DEPTH
FEET
0000
0005
0015
0040
0000
0005
0015
0025
0040
0000
0005
0015
0025
0030
0041
00010
WATER
TEMP
CENT
9.4
9.4
8.8
7.8
23.5
23.1
19.0
14.7
11.6
17.7
17.6
17.6
17.0
13.9
12.0
00300 00077
DO TRANSP C
SECCHI FIELD
M6/L INCHES M
10.0
9.6
8.8
7.8
5.8
2.2
0.6
0.8
6.2
6.0
6.0
0.6
0.0
0.0
66
72
52
194
:TVY
i
IMHO
239
240
237
233
304
299
273
233
173
243
113
235
245
223
223
00400
PH
SU
8.35
8.10
8.00
7.90
8.30
8.10
7.50
7.60
7.30
7.51
7.57
7.37
6.95
6.83
6.77
00410
T ALK
CAC03
MG/L
125
124
125
127
117
114
116
132
144
173
00610
NH3-N
TOTAL
MG/L
0.270
0.320
0.360
0.520
0.260
0.250
0.360
0.910
2.320
4.160
00625
TOT KJEL
N
MG/L
1.000
1.000
0.900
1.100
1.100
0.800
0.800
1.500
2.600
4.600
00630
N02&N03
N-TOTAL
MG/L
1.830
1.760
1.680
1.510
0.840
0.850
0.820
0.520
0.060
0.040
00671
PHOS-OIS
ORTHO
MG/L P
0.008
6.007
0.006
0.007
0.009
0.010
0.009
0.012
0.016
0.016
00665
DATE TIME DEPTH PHOS-TOT
FROM OF
TO DAY FEET MG/L P
74/04/18 10 10 0000 0.042
10 10 0005 0.036
10 10 0015 0.030
10 10 0040 0.029
74/07/03 10 40 0000
10 40 0012
74/09/24 11 00 0000 0.021
11 00 0001
11 00 0005 0.034
11 00 0009
11 00 0015 0.027
11 00 0025 0.054
11 00 0030 0.071
11 00 0041 0.347
32217 00031
CHLRPHYL INCDT LT
A REMNING
UG/L PERCENT
7.1
11.2
13.7
1.0
50.0
1.0
-------
STORET RETRIEVAL DATE 75/13/23
190702
41 47 36.0 091 32 41.0
LAKE MACBRIOE
19103 IOWA
DATE
FROM
TO
74/04/18
74/07/03
74/09/24
TIME DEPTH
OF
DAY FEET
10 35
10 35
10 35
11 00
11 00
11 00
11 40
11 40
11 40
0000
0005
0013
0000
0005
0010
0000
0005
0011
WATER
TEMP
CENT
12oO
11 o5
9ol
25oO
24.3
19.3
16.6
16.5
16.4
00300 00077
DO TRANSP O
SECCHI FIELD
MG/L INCHES M]
8.6
708
702
Io6
9.6
9*0
9.0
24
36
28
11EPALES
3
2111202
0017 FEET
DEPTH
i94
:TVV
i
IMHO
293
292
287
365
365
315
259
259
259
0040®
PH
SU
8.50
8.20
7.70
8.20
7.90
7.30
8.39
8.37
8.39
00410
T ALK
CAC03
MG/L
140
ua
148
145
147
143
06610
NH3"N
TOTAL
MG/L
Oo©60
OolSO
Oo430
0.070
0.050
0.050
00625
TOT KJEL
N
MG/L
1.100
®s>9©0
UIOO
0.900
0.800
0.700
00630
N02&N03
N-TOTAL
MG/L
2o700
2o360
3.500
0.420
0.420
0.420
906H
PKOS"=D JS
ORTMO
MG/L P
OoO©9
0.010
0.036
Oo006
0.009
0.010
00665
DATE TIME DEPTH PHOS-TOT
FROM OF
TO DAY FEET MG/L P
74/04/18 10 35 0000 0.095
10 35 0005 0.095
10 35 0013 0.106
74/07/03 11 00 0000
11 00 0007
74/09/24 11 40 0000 0.062
11 40 0005 0.055
11 40 0011 0.065
32217 00031
CHLRPHYL INCDT LT
A REMNING
UG/L PERCENT
14.7
4.7
34.5
1.0
-------
STORE! RETRIEVAL DATE 75/12/23
190703
41 48 25.0 091 32 40.0
LAKE MACBRIOE
19103 IOWA
DATE
FROM
TO
74/04/18
74/07/03
74/09/24
TIME DEPTH
OF
DAY FEET
11 00 0000
11 00 0005
11 00 0011
11 20 0000
11 20 0005
11 20 0011
14 00 0000
14 00 0005
14 00 0008
00010
WATER
TEMP
CENT
11.6
11.5
11.0
25.5
25.3
25.0
16.8
16.8
16.8
00300
DO
MG/L
8.2
9.8
8.2
7.8
8.2
11.6
9.6
9.6
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES HICROMHO
30
48
18
253
255
250
319
320
317
249
245
247
11EPALCS
3
00400
PH
su
8.20
8.10
8.10
8.90
8.70
8.50
8.63
8.53
8.61
00410
T ALK
CAC03
MG/L
122
122
123
122
119
120
2111202
0015
00610
NH3-N
TOTAL
MG/L
0.240
0.280
0.300
0.030
0.040
0.030
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.900
1.000
1.000
1.100
1.100
1.700
00630
N02&N03
N-TOTAL
MG/L
2.310
2.220
1.980
0.730
0.770
0.770
00671
PHOS-OIS
ORTHO
MG/L P
0.015
0.014
0.013
0.010
0.011
0.012
00665 32217 00031
DATE TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
FROM OF A REMNING
TO DAY FEET MG/L P UG/L PERCENT
74/04/18 11 00 0000 0.062 10.4
11 00 0005 0.061
11 00 0011 0.056
74/07/03 11 20 0000 10.9
74/09/24 14 00 0000 0.092 46.4
14 00 0001 50.0
14 00 0004 1.0
14 00 0005 0.116
14 00 0008 0.136
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 76/01/27
1907A1
41 47 35.0 091 34 30.0
LK MACBRIDE DAM OUTLET
19183 7.5 ELY
0/LAKE MACBRIDE
SPILLWAY OF LAKE MACBRIDE DAM
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
74/08/18
74/09/08
74/10/20
7^/11/19
74/12/19
75/01/18
75/02/09
75/03/15
75/04/07
75/04/21
75/05/05
75/05/19
75/06/03
75/06/19
75/07/06
TIME DEPTH
OF
DAY FEET
15 37
11 05
11 30
15 15
14 20
09 40
10 08
12 45
16 00
10 00
14 10
19 55
21 00
20 20
17 30
00630
N02&N03
N-TOTAL
MG/L
1.680
1.040
0.600
0.610
0.660
0.850
0.900
1.100
1.350
1.450
0.330
1.400
1.250
0.930
0.340
00625
TOT KJEL
N
MG/L
0.800
0.800
1.300
0.900
1.500
1.200
1.200
0.900
1.625
2.700
2.000
1.150
0.900
0.700
1.000
00610
NH3-N
TOTAL
MG/L
0.050
0.050
0.420
0.430
0.395
0.296
0.320
0.240
0.380
0.400
0.025
0.085
0.045
0.045
0.145
00671
PHOS-DIS
ORTHO
MG/L P
0.017
0.010
0.005
0.010
0.005K
0.005
0.016
0.005K
0.080
0.040
0.015
0.010
0.015
0.005
0.020
00665
PHOS-TOT
MG/L P
0.035
0.025
0.020
0.030
0.020
0.030
0.016
0.020
0.140
0.170
0.060
0.130
0.050
0.040
0.050
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 76/01/27
1907B1
41 4B 40.0 091 30 15.0
MILL CREEK
19 7.5 ELY
T/LAKE MACBRIDE
ST HNY 382 BROG BELOW SOLON STP
11EPALES 2111204
4 0000 FEET DEPTH
DATE TIME DEPTH
FROM OF
TO DAY FEET
74/08/18 14 55
74/09/08 10 40
74/10/20 11 06
74/11/19 15 01
74/12/19 14 00
75/01/18 09 55
75/03/15 12 19
75/04/07 15 45
75/04/21 09 35
75/05/05 13 45
75/05/19 19 32
75/06/03 20 35
75/06/19 20 05
75/07/06 17 05
00630
N02&N03
N-TOTAL
MG/L
5.200
3.360
3.300
4.000
5.290
3.450
6.900
6.000
5.400
4.200
3.800
3.600
1.600
00625
TOT KJEL
N
MG/L
1.100
2.300
5.300
2.500
1.360
1.300
9.000
1.350
2.700
2.600
3.150
0.800
2.400
2.350
00610
NH3-N
TOTAL
MG/L
0.250
0.975
1.720
0.825
0.097
0.480
1.570
0.300
0.620
0.640
1.150
0.725
0.925
0.950
00671
PHOS-OIS
ORTHO
MG/L P
0.290
0.560
0.975
0.530
0.230
0.975
0.190
0.250
0.360
1.000
0.615
0.840
0.830
00665
PHOS-TOT
MG/L P
0.525
0.710
2.300
0.725
0.205
0.340
2.800
0.360
0.300
0.560
1.150
0.820
1.050
1.080
-------
STORET RETRIEVAL DATE 76/01/37
1907B2
41 48 40.0 091 30 05.0
MILL CREEK
19 7.5 ELY
T/LAKE MAC8RIOE
LGHT DTY RO BRDG ABOVE SOLON STP
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
74/08/18
74/09/08
74/10/20
74/11/19
74/12/19
75/01/18
75/03/15
75/04/07
75/04/21
75/05/05
75/05/19
75/06/03
75/06/19
75/07/06
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
15
10
10
14
13
10
12
15
09
13
19
20
19
16
15
30
55
50
55
05
07
35
25
30
25
30
55
55
MG/L MG/L
5.
2.
2.
4.
5.
0.
3.
7.
6.
0.
4.
4.
3.
1.
300 0.700
640 0.500
640 0.800
000 0.600
240 ]
1.200
025 0.600
670 ]
1.000
200 1.450
300
270
600
000 (
500
100
.100
.150
.600
.650
.000
.050
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.060
0.025
0.035
0.060
0.124
0.088
0.190
0.195
0.110
0.035
0.080
0.040
0.110
0.045
MG/L P
0
.090
0.045
0
0
0.
0.
0.
0
0
0
0
0
0
.035
.080
.040
.040
.050
.060
.040
.050
.060
.105
.070
MG/L P
0.160
0.045
0.050
0.090
0.190
0.080
0.115
0.160
0.060
0.050
0.090
0.287
0.100
0.110
-------
STORET RETRIEVAL DATE 76/01/27
DATE
FROM
TO
74/09/27
cpm-
74/09/27
74/10/25
CP(T>-
74/10/25
74/12/27
CP(T>-
74/12/27
75/01/31
CP(T>-
75/01/31
75/02/28
CP(T>-
75/02/28
75/03/31
CP(T>-
75/03/31
75/04/28
CP(T)-
75/04/28
75/05/30
CP < T ) -
75/05/30
75/06/27
75/07/25
CPU)-
75/07/25
75/09/26
CPU)-
75/09/26
75/10/30
CP(T>-
75/10/30
00630
TIME DEPTH N02&N03
OF N-TOTAL
DAY FEET MG/L
08 00
10.100
16 00
06
18
08
16
08
16
08
16
08
16
08
16
08
16
08
16
08
16
08
16
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
8.
6.
2.
2.
2.
2.
2.
9.
9.
7.
6.
000
000
880
240
320
200
500
200
000
650
300
00625
TOT KJEL
N
MG/L
17.000
16.
16.
23.
23.
12.
13.
11.
15.
15.
17.
20.
000
000
000
000
000
500
000
000
000
000
000
00610 00671 00665
NH3-N PHOS-OIS PHOS-TOT
TOTAL ORTHO
MG/L MG/L P MG/L P
4.950 4.600 5.100
2.
3.
7.
7.
0.
1.
0.
0.
1.
3.
3.
500
000
750
000
320
550
380
990
350
500
400
6
4
5
3
2
3
3
4
8
7
8
.600
.300
.300
.900
.560
.900
.150
.600
.700
.200
.600
9.400
4.400
8.800
5.400
3.100
4.400
3.400
5.775
9.100
9.000
10.500
1907AA TF1907AA P0009SO
41 34 30.0 093 33 20.0
SOLON
19183 7.5 SOLON IA
T/LAKE MCBRIOE
MILL CREEK
11EPALES 2141204
4 0000 FEET DEPTH
50051 50053
FLOW CONDUIT
RATE FLOW-MGO
0.126
0.128
0.082
------- |