U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
FIUSKEGON LAKE
MUSKEGON COUNTY
MICHIGAN
EPA REGION V
WORKING PAPER No, 203
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
>? GPO 697-O32
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REPORT
ON
MUSKEGON LAKE
MUSKEGON COUNTY
MICHIGAN
EPA REGION V
WORKING PAPER No, 203
WITH THE COOPERATION OF THE
MICHIGAN DEPARTMENT OF NATURAL RESOURCES
AND THE
MICHIGAN NATIONAL GUARD
FEBRUARY, 1975
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CONTENTS
Page
Foreword ii
List of Michigan 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
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to fresh water lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(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.
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iii
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Michigan Department of
Natural Resources for professional involvement and to the
Michigan National Guard for conducting the tributary sampling
phase of the Survey.
A. Gene Gazlay, former Director, and David H. Jenkins, Acting
Director, Michigan Department of Natural Resources; and Carlos
Fetterolf, Chief Environmental Scientist, and Dennis Tierney,
Aquatic Biologist, Bureau of Water Management, Department of Natural
Resources, provided invaluable lake documentation and counsel during
the course of the Survey. John Vogt, Chief of the Bureau of Environ-
mental Health, Michigan Department of Public Health, and his staff
were most helpful in identfying point sources and soliciting municipal
participation in the Survey.
Major General Clarence A. Schnipke (Retired), then the Adjutant
General of Michigan, and Project Officer Colonel Albert W. Lesky,
who directed the volunteer efforts of the Michigan National Guardsmen,
are also gratefully acknowledged for their assistance to the Survey.
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NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MICHIGAN
LAKE NAME
Allegan Res.
Barton
Belleville
Betsie
Brighton
Caro Res.
Charlevoix
Chemung
Constantine Res,
Crystal
Deer
Ford
Fremont
Higgins
Holloway Res.
Houghton
Jordon
Kent
Long
Macatawa
Manistee
Mona
Muskegon
Pentwater
Pere Marquette
Portage
Randall
Rogers Pond
Ross
St. Louis Res.
Sanford
Strawberry
Thompson
Thornapple
Union
White
COUNTY
Allegan
Kalamazoo
Wayne
Benzie
Livingston
Tuscola
Charlevoix
Livingston
St. Joseph
Montcalm
Marquette
Washtenaw
Newago
Roscommon
Genesee, Lapeer
Roscommon
Ionia, Barry
Oakland
St. Joseph
Ottawa
Manistee
Muskegon
Muskegon
Oceana
Mason
Houghton
Branch
Mecosta
Gladwin
Gratiot
Midland
Livingston
Livingston
Barry
Branch
Muskegon
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86°15'
MUSKEGON LAKE
® Tributary Sampling Site
X Lake Sampling Site
• Sewage Treatment Facility
^/" Direct Drainage Area Boundary
rf$ Indirect Drainage Area Boundary
86°00'
MUSKEGON CO. KENT CO.
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MUSKEGON LAKE
STORE! NO. 2659
I. CONCLUSIONS
A. Trophic Condition:
Survey data show that Muskegon Lake is eutrophic. Of the
35iMichigan lakes sampled in November when essentially all
were well-mixed, 21' had less mean total phosphorus, 19 had
less mean dissolved phosphorus, and 14 had less mean inorganic
nitrogen; of the 41 Michigan lakes sampled, ten had less mean
chlorophyll a^, but 16 had greater Secchi disc transparency*.
Ketelle and Uttormark (1971) report that excessive weed growths
and algal blooms are problems at this lake.
B. Rate-Limting Nutrient:
The results of the algal assay show that Muskegon Lake was
nitrogen limited at the time the sample was collected (09/19/72).
The lake data indicate nitrogen limitation at the other sampling
times as well (N/P ratios were 11/1 or less, and nitrogen limita-
tion would be expected).
C. Nutrient Controllability:
1. Point sources—During the sampling year, Muskegon Lake
received a total phosphorus load at a rate more than three times
the rate proposed by Vollenweider as "dangerous"; i.e., a eutro-
phic rate (see page 13). However, the hydraulic retention time
* See Appendix A.
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of Muskegon Lake is a relatively short 23 days, and Vollen-
weider's model may not be applicable.
Sewage effluents from the cities of Muskegon and Roosevelt
Park as well as industrial wastes (not measured or estimated
in this study) were diverted to a cropland spray-irrigation
management system that became operational in May, 1973 (Bastian,
1974).
The phosphorus loads from the municipal point sources noted
above amounted to about 7% of the total load during the«samp-
ling year. After diversion, it is calculated that the loading
2
rate was reduced to 4.4 g/m /yr or about twice the eutrophic
rate. However, since the applicability of Vollenweider's model
is questionable, and since unmeasured industrial nutrient loads
were also diverted, it is believed the trophic condition of
Muskegon Lake will improve significantly once a new phosphorus
equilibrium is attained.
2. Non-point sources—During the sampling year, it is
estimated that non-point sources, including precipitation,
contributed about 65% of the total phosphorus load to Muskegon
Lake.
Except for the Muskegon River and Green Creek, the phosphorus
exports of the Muskegon Lake tributaries were unusually high,
especially the smaller Four Mile, Ryerson, and Ruddiman creeks
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drainages (see page 13). It is probable that the high exports
of the latter streams are due to urban drainage.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry :
1. Surface area: 4,150 acres.
2. Mean depth: 23.5 feet.
3. Maximum depth: 69 feet.
4. Volume: 97,525 acre-feet.
5. Mean hydraulic retention time: 23 days.
B. Tributary and Outlet:
(See Appendix B for flow data)
1. Tributaries -
Name Drainage area* Mean flow*
?
Muskegon River 2,567.0 mi^ 2,078.7 cfs
Green Creek 11.7 miŁ 11.8 cfs
Bear Lake outlet 28.6 mi^ 29.5 cfs
Four Mile Creek 3.4 mi~ 3.1 cfs
Ryerson Creek 7.6 mi« 7.1 cfs
Ruddiman Creek 3.4 mi 3.1 cfs
Minor tributaries & 2
immediate drainage - 5.8 mi 9.7 cfs
Totals 2,627.5 mi2 2,143.0 cfs
2. Outlet -
Muskegon River 2,634.0 mi2** 2,143.0 cfs
C. Precipitation***:
1. Year of sampling: 31.8 inches.
2. Mean annual: 30.2 inches.
t Fetterolf, 1973.
* Drainage areas are accurate within ±5%; mean daily flows for 74% of the
sampling sites are accurate within ±25% and the remaining sites up to
±40%; and mean monthly flows, normalized mean monthly flows, and mean
annual flows are slightly more accurate than mean daily flows.
** Includes area of lake.
*** See Working Paper No. 1, "Survey Methods, 1972".
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III. LAKE WATER QUALITY SUMMARY
Muskegon Lake was sampled three times during the open-water season
of 1972 by means of a pontoon-equipped Huey helicopter. Each time,
samples for physical and chemical parameters were collected from
three stations on the lake and from a number of depths at each station
(see map, page v). During each visit, a single depth-integrated (15
feet to surface) sample was composited from the three stations for
phytoplankton identification and enumeration; and during, the second
visit, a single five-gallon depth-integrated sample was composited for
algal assays. Also each time, a depth-integrated sample was collected
from each of the stations for chlorophyll a_ analyses. The maximum
depths sampled were 44 feet at station 1, 31 feet at station 2, and 59
feet at station 3.
The results obtained are presented in full in Appendix C, and the data
for the fall sampling period, when the lake essentially was well-mixed, are
summarized below. Note, however, the Secchi disc summary is based on all
values.
For differences in the various parameters at the other sampling times,
refer to Appendix C.
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A. Physical and chemical characteristics:
FALL VALUES
Parameter
Temperature (Cent.)
Dissolved oxygen (mg/1)
Conductivity (umhos)
pH (units)
Alkalinity (mg/1)
Total P (mg/1)
Dissolved P (mg/1)
N02 + NOT (mg/1)
Ammonia (mg/1)
Secchi disc (inches)
(11/14/72)
Minimum
7.1
9.4
330
7.7
142
0.046
0.035
0.150
0.210
60
Mean
7.4
9.7
365
7.7
148
0.087
0.043
0.186
0.283
ALL VALUES
64
Median
7.5
9.6
370
7.7
147
0.059
0.039
0.160
0.220
62
Maximum
7.5
10.1
380
7.8
164
0.530
0.059
0.600
1.210
72
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B. Biological characteristics:
1. Phytoplankton* -
Sampling Dominant Number
Date Genera per ml
09/19/72 1. Melosira 1,525
2. Anabaena 506
3. Flagellates 145
4. Stephanodiscus 145
5. Marssionella 126
Other genera 597
Total 3,044
11/14/72 1. Lyngbya 2,132
2. Oscillatoria 675
3. Dinobryon 229
4. Microcystis 193
5. Anabaena 157
Other genera 613
Total 3,999
2. Chlorophyll a^ -
(Because of instrumentation problems during the 1972 sampling,
the following values may be in error by plus or minus 20 percent.)
Sampling Station Chlorophyll a^
Date Number (yg/1)
06/13/72 01 13.0
02 17.9
03 28.1
09/19/72 01 8.8
02 3.7
03 10.0
11/14/72 01 2.5
02 0.5
03 1.1
The June sample was lost in shipment.
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0.055
0.065
0.075
0.105
0.105
0.105
0.105
0.238
0.238
0.238
0.238
5.238
10.238
10.238
7.3
7.4
7.4
7.2
35.8
37.9
14.0
8
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
Ortho P Inorganic N Maximum yield
Spike (mg/1) Cone, (mg/1) Cone, (mg/1) (mg/l-dry wt.)
Control
0.010 P
0.020 P
0.050 P
0.050 P + 5.0 N
0.050 P + 10.0 N
10.0 N
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum, indicates that the potential primary productivity
of Muskegon Lake was high at the time the assay sample was
collected. Also, the lack of significant increase in yields
with increasing increments of orthophosphorus, until nitro-
gen was also added, indicates that the lake was limited
by nitrogen at sampling time (09/19/72). Note that the
addition of only nitrogen resulted in a yield much greater
than the control yield.
The lake data further substantiate nitrogen limitation.
On all occasions, the nitrogen to phosphorus ratios were
less than 11 to 1.
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IV. NUTRIENT LOADINGS
(See Appendix D for data)
For the determination of nutrient loadings, the Michigan National
Guard collected monthly near-surface grab samples from each of the tribu-
tary sites indicated on the map (page v), except for the high runoff
months of April, June, and July when two samples were collected. Samp-
ling was begun in October, 1972, and was completed in September, 1973.
Through an interagency agreement, stream flow estimates for the year
of sampling and a "normalized" or average year were provided by the Michi-
gan District Office of the U.S. Geological Survey for the tributary sites
nearest the lake.
In this report, nutrient loadings for sampled tributaries were deter-
mined by using a modification of a U.S. Geological Survey computer program
for calculating stream loadings*. Nutrient loadings for unsampled "minor
tributaries and immediate drainage" ("ZZ" of U.S.G.S.) were estimated by
2
using the means of the nutrient loads, in Ibs/mi /year, at stations B-l,
2
C-l, D-l, E-l, and F-l and multiplying the means by the ZZ area in mi .
Nutrient loads for the cities of Muskegon and Roosevelt Park were
estimated at 2.5 Ibs P and 7.5 Ibs N/capita/year. The diversion of the
municipal and industrial wastes of Muskegon and Roosevelt Park was
instituted in May, 1973, when a cropland spray-irrigation wastewater
management system began pumping wastewater to aeration and storage
lagoons (Bastian, 1974). The estimated nutrient loads from the above
* See Working Paper No. 1.
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10
communities were adjusted for this diversion and represent the loads
for eight months of the sampling year.
A. Waste Sources:
1. Known municipal -
Pop. Mean Receiving
Name Served Treatment Flow (mgd) Water
Muskegon 51,081 (land disp.) 8.700 Muskegon Lake
Roosevelt Park 2,578 (land disp.) 0.600 Muskegon Lake
2. Industrial - Unknown
* Bastian, 1973.
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11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Ibs P/ % of
Source y_r total
a. Tributaries (non-point load) -
Muskegon River 152,680 60.1
Green Creek 640 0.3
Bear Lake outlet 3,370 1.3
Four Mile Creek 1,680 0.7
Ryerson Creek 2,410 0.9
Ruddiman Creek 1,350 0.5
b. Minor tributaries & immediate
drainage (non-point load) - 1,590 0.6
c. Known municipal STP's -
Muskegon 85,140 33.5
Roosevelt Park 4,300 1.7
d. Septic tanks* - . 100 <0.1
e. Known industrial - Unknown
f. Direct precipitation** - 650 0.3
Total 253,910. 100.0
2. Outputs -
Lake outlet - Muskegon River 250,690
3. Net annual P accumulation - 3,220 pounds
* Estimate based on 151 shoreline dwellings and one State park; see
Working Paper No. 1.
** See Working Paper No. 1.
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12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
Ibs N/ % of
Source yr total
a. Tributaries (non-point load) -
Muskegon River 3,613,530 88.0
Green Creek 24,630 0.6
Bear Lake outlet 73,530 1.8
Four Mile Creek 9,100 0.2
Ryerson Creek 37,410 0.9
Ruddiman Creek 15,420 0.4
b. Minor tributaries & immediate
drainage (non-point load) - 19,500 0.5
c. Known municipal STP's -
Muskegon 255,400 6.2
Roosevelt Park 12,890 0.3
d. Septic tanks* - 3,630 0.1
e. Known industrial - Unknown
f. Direct precipitation** - 39,980 1.0
Total 4,105,020 100.0
2. Outputs -
Lake outlet - Muskegon River 3,942,810
3. Net annual accumulation - 162,210 pounds
* Estimate based on 151 shoreline dwellings and one State park; see
Working Paper No. 1.
** See Working Paper No. 1.
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13
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
2 7
Tributary - Ibs P/mi /yr IDS N/mi /yr
Muskegon River 59 1,408
Green Creek 55 2,105
Bear Lake outlet 118 2,571
Four Mile Creek 494 2,676
Ryerson Creek 317 4,922
Ruddiman Creek 397 4,535
E. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (in press).
Essentially, his "dangerous" rate is the rate at which the
receiving waters would become eutrophic or remain eutrophic;
his "permissible" rate is that which would result in the
receiving water remaining oligotrophic or becoming oligo-
trophic if morphometry permitted. A mesotrophic rate would
be considered one between "dangerous" and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with very short hydraulic retention times.
Total Phosphorus Total Nitrogen
Units
Ibs/acre/yr
grams/m2/yr
Total
61.2
6.86
Accumulated
0.8
0.09
Total
989.2
110.9
Accumulated
39.1
4.4
Vollenweider loading rates for phosphorus
(g/mVyr) based on mean depth and mean
hydraulic retention time of Muskegon Lake:
"Dangerous" (eutrophic rate) 2.00
"Permissible" (oligotrophic rate) 1.00
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14
V. LITERATURE REVIEWED
Bastian, Robert K., 1973. Project status and research at Muskegon,
Michigan. Symp. on Land Treatment of Secondary Effluent,
Boulder, CO, November 8-9.
_, 1974. Personal communication (Muskegon County
wastewater treatment-irrigation system). U.S. EPA Proj.
Support Off., Res. & Monitoring, Muskegon.
Fetterolf, Carlos, 1973. Personal communication (lake morphometry).
MI Dept. Nat. Resources, Lansing.
Vollenweider, Richard A. (in press). Input-output models. Schweiz.
Z. Hydrol.
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15
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
26AO HOLLOWAY RESERVOIR
26Ai CARD RESERVOIR
26A2 BOAKOMAN HYDRO POND
2603 ALLEOAN LAKE
2606 BARTON LAKE
2609 BELLEVILLE LAKE
2610 BETSIE LAKE
2613 BKIGHTON LAKE
2617 LAKE CHARLEVOIX
2618 LAKE CHEMUNG
2621 CONSTANTINE RESERVOIR
2629 FORD LAKE
2631 FREMONT LAKE
2640 JORDAN LAKE
26*3 KENT LAKE
2648 LAKE MACATAWA
26*9 MANISTEE LAKE
26S9 MUSKEGON LAKE
2665 PENTWATER LAKE
2671 RANDALL LAKE
2672 ROGERS PONO
' 2673 ROSS RESEHVOIK
2674 SANFORD LAKE
2683 THORNAPPLE LAKE
2685 UNION LAKE
26B8 WHITE LAKE
2691 MONA LAKE
2692 LONG LAKE
MEAN
TOTAL P
0.062
0.117
0.006
0.123
0.121
0.118
0.025
0.109
0.007
0.044
0.027
0.105
0.372
0.180
0.040
0.197
0.018
0.087
0.027
0.246
0.026
0.034
0.016
0.042
0.083
0.027
0.307
0.163
-TALL VAl_Ut3-
MEAN
DISS P
0.043
0.022
0.005
0.057
0.086
0.048
0.008
0.073
0.006
0.014
0.008
0.058
0.342
0.144
0.015
0.1 20
0.010
0.043
0.017
0.183
0.015
0.021
0.008
0.032
0.064
0.019
U.241
0.148
MEAN
INORG N
1.461
3.835
0.358
1.168
1.489
1.420
0.273
1.015
0.230
0.132
0.910
1.536
1.406
1.998
0.417
2.358
0.304
0.469
0.496
0.818
0.183
0.460
0.307
1.737
1.252
0.367
0.963
0.749
500-
MEAN SEC
439.375
473.000
363.500
470.222
456.167
465.250
461.667
456.000
351.250
404.333
456.167
456.167
441.667
427.667
455.000
477.600
451.333
436.444
430.667
457.333
435.500
465.333
458.750
442.833
455.500
417.778
451.667
418.400
MEAN
CHLORA
10.67B
11.967
1.267
20.311
27.800
28.262
4.567
44.233
3.008
13.483
39.317
14.733
28.500
20.517
33.944
25.600
6.317
9. ill
16.083
27.217
8.133
10.383
13.791
14.650
15.667
9.211
27.783
10.067
15-
MIN DO
9.200
9.500
6.600
12.600
14.850
P. 200
7.400
7.500
9.240
14.800
7.500
14.000
14.800
14.900
13.000
12.200
11.380
14.800
14.800
8.020
9.600
8.200
8.300
10.800
8.200
13.400
14.100
13.600
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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
2693 ST LOUIS RESERVOIR
2694 CRYSTAL LAKE
2695 MIGGINS LAKE
2696 HOUGHTON LAKE
2697 THOMPSON LAKE
2698 PERE MAROUETTE LAKE
2699 STRAWBERRY LAKE
MEAN
TOTAL P
0.134
0.009
0.007
0.018
0.043
0.032
0.069
rAUU VALUE. 3
MEAN
DISS P
0.093
0.006
0.005
0.008
0.029
0.024
0.050
MEAN
INORG N
1.227
0.164
0.058
0.136
0.436
0.346
0.567
500-
MEAN SEC
462.667
380.000
268.500
420.833
407.889
448.667
419.800
MEAN • .
CHLORA
5.583
2.986
1.043
9.217
11.967
11.833
11.117
15-
MIN DO'
8.420
13.000
9.400
8.200
14.800
8.600
13.600
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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKt
CODE
26AO
26A2
2603
2606
2609
2610
2613
2617
2618
2621
2629
2631
26<>0
2643
2648
26*9
2659
2665
2671
2672
2673
2674
2683
2685
2688
2691
2692
LAKE NAME
HOLLOWAY RESERVOIR
c»ho RESERVOIR
BOAKDMAN HYDRO POND
ALLEGAN LAKE
BARTON LAKE
BELLEVILLE LAKE
BETSIE LAKE
BRIGHTON LAKE
LAKE CHARLEVOIX
LAKE CHEMUNG
CONSTANTINE RESERVOIR
FORD LAKE
FREMONT LAKE
JORDAN LAKE
KENT LAKE
LAKE MACATAWA
HAN1STEE LAKE
MUSKEGON LAKE
PENTWATER LAKE
RANDALL LAKE
ROGERS POND
ROSS RESERVOIR
SANFORD LAKE
THORNAPPLE LAKE
UNION LAKE
WHITE LAKE
MONA LAKE
LONG LAKE
MEAN MEAN
TOTAL P UISS P
46
29
97
20
23
26
77
31
91
49
71
34
0
11
57
9
80
37
69
6
74
60
86
54
40
66
3
14
( 16)
( 10)
I 34)
( 7)
( 8)
( 9)
( 27)
( 11)
I 32)
( 17)
( 25)
( 12)
( 0)
( 4)
( 20)
< 3)
( 28)
( 13)
( 24)
( 2)
( 26)
( 21)
< 30)
( 19)
( 14)
( 23)
( 1)
I 5)
43 (
54 (
97 <
31 (
20 (
37 (
77 (
23 (
91 (
71 <
83 I
29 (
0 (
11 (
69 (
14 (
74 (
40 (
63 (
6 <
66 (
57 (
80 (
46 (
26 (
60 I
3 (
9 (
15)
19)
34)
11)
7)
131
27)
81
32)
25)
29)
10)
0)
4)
24)
5)
26)
14)
22)
2)
23)
20)
28)
16)
9)
21)
1)
3)
MEAN
INORG N
17 (
0 (
69 I
31 (
14 (
20 1
60 (
34 (
83 (.
94 (
40 (
11 (
23 (
6 (
63 <
3 (
77 (
54 (
51 I
43 1
86 (
57 (
74 (
9 (
26 (
66 I
37 (
46 (
6)
0)
24)
11)
5)
7)
28)
12)
29)
33)
14)
4)
8)
2)
22)
11
27)
19)
18)
15) .
30)
20)
26)
3)
9)
23)
13)
16)
500-
MEAN SEC
57
3
91
6
29
11
17
34
94
86
29
29
54
6.9
40
0
46
60
66
23
63
9
20
51
37
80
43
77
( 20)
( 1)
( 32)
I 2)
( 9)
( 4)
( 6)
< 12)
( 33)
( 30)
( 9)
I 9)
( 19)
( 24)
( 14)
( 0)
( 16)
( 21)
( 23)
( 8)
( 22)
I 3)
( 7)
( 18)
( 13)
( 28)
( IS)
( 27)
MEAN
CHLOHA
60
49
94
29
14
11
86
0
89
46
3
37
9
26
6
23
80
69
31
20
77
63
43
40
34
74
17
66
( 21)
( 17)
( 33)
( 10)
( 5)
( 4)
( 30)
( 0)
I 31)
( 16)
I D
( 13)
( 3)
( 9)
( 2)
( 8)
( 28)
( 24)
I 11)
( 7)
( 27)
( 22)
( 15)
( 14)
( 12)
( 26)
( 6)
( 23)
15-
MIN
63 (
54 I
97 I
40 (
3 (
79 (
94 (
90 (
60 (
11 <
90 I
23 (
11 (
0 (
36 (
43 (
46 (
11 (
11 (
86 (
51 <
79 (
71 (
49 (
79 (
31 (
20 I
27 (
DO
22)
19)
34)
14)
1)
•56)
33)
31)
21)
2)
31)
8)
2)
0)
12)
15)
16)
2)
2)
30)
18)
26)
25)
17)
26)
11)
7)
9)
INDEX
NO
286
189
545
157
103
184
431
212
508
357
316
163
97
123
271
92
403
271
291
184
417
32S
374
249
242
377
123
239
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE LAKE NAME
2693 ST LOUIS RESERVOIR
2694 CRYSTAL LAKE
2695 HIGGINS LAKE
2696 HOUGHTON LAKE
2697 THOMPSON LAKE
2698 PERE MARQUETTE LAKE
2699 STRAWBERRY LAKE
——FALL VALUED-
MEAN MEAN
TOTAL P DISS P
17 (
89. (.
94 (
83 (
51 (
63 (
43 (
6)
31)
33)
29)
18)
22)
15)
17
89
94
86
49
51
34
( 6)
( 31)
( 33)
( 30)
< 17)
( 18)
( .12)
MEAN
INORG N
29 1
89 i
97 i
91 i
60 (
71
49 i
! 10)
( 31)
( 34)
t 32)
! 21)
( 25)
t 17)
500-
MEAN SEC
14
89
97
71
83
49
74
( 5)
( 31)
( 34)
( 25)
( 29)
( 17)
( 26)
MEAN 15-
CHLORA MIN DO
83
91
97
71
51
54
57
( 29)
( 32)
( 34)
( 25)
( 18)
( 19)
( 20)
69
36
57
79
11
66
27
( 24)
( 12)
( 20)
( 26)
( 2)
( 23)
( 9)
INDEX
NO
229
483
536
481
305
354
284
-------
APPENDIX B
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR MICHIGAN
a/3/75
LAKE CODE 2659
MUSKtGON LAKK
TOTAL DRAINAGE AREA OF LAKEISQ MI) 2634.00
SUB-DRAINAGE
TRIBUTARY AREAISO MI)
JAN
FEB
MAR
ARR
MAY
NORMALIZED l-LOrfS(CFS)
JUN JUL AUG
SEH
OCT
NOV
UEC
MEAN
2659A1
2659A2
2659A3
2659B1
2659C1
2659D1
2659E1
2659F1
2659ZZ
2634.00
1283.00
1284.00
11.70
28.60
3.44
7.59
3.37
12.00
2019.40 2182.30 3244.40 3740.10 2715.90 2091.40 1515.80 1284.00 1354.90 1608.70 1984.40 1998.40 2143.05
878.00 948.00 1416.00 1620.00 1192.00 917.00 666. uO 564.00 595.00 702.00 864.00 866.00 935.36
1074.00 1159.00 1730.00 19tt?.00 1456.00 1121.00
12.60
34.20
3.10
6.90
3.00
9.00
13.80
39.20
3.5.0
7.60
3.40
10.00
18.40
46.70
4.VO
10.70
4.80
15.00
20.00
48.00
5.70
12.60
5.00
17.00
12.80
29.70
3.60
8.20
3.60
12.00
9.40
24.00
2.70
6.20
2.70
10.00
813.00
6.bO
16.10
1.80
4.30
1.90
7.00
690.00
5.80
12.20
1.60
4.00
1.80
6.00
728.00
6.80
12.50
1.60
4.20
1.80
6.00
858.00 1057.00 1058.00 1
9.20
23.50
2.30
5.40
2.40
7.00
12.20
31.00
3.10
7.00
3.10
9.00
14.20
37.70
3.60
8.00
3.60
9.00
L143.26
11.85
29.50
3.12
7.08
3.14
9.74
SUMMARY
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE ARtAS =
MEAN MONTHLY FLOWS AND DAILY FLOwS(CFS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY FLC
2659A1
2634.00
2&33.70
TOTAL FLOW IN
TOTAL FLOW OUT
FLOW DAY
FLOW
2659A2
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
72
72
72
73
73
73
73
73
73
73
73
73
72
72
72
73
73
73
73
73
73
73
73
73
1750.00
2240.00
2030.00
3910.00
2910.00
4990.00
3410.00
24bO. JO
2490.00
1650.00
1480.00
1280.00
917.00
1192.00
1070.00
2080.00
1560.00
2680. uO
1820.00
1290.00
1330.1)0
886.00
792.00
688.00
29
3
7
4
4
6
15
3
10
27
29
29
3
7
4
4
6
15
3
10
27
29
1820.
2350.
2200.
3740.
336u.
3970.
3060.
3340.
1520.
1250.
1300.
941.
12oO.
117u.
2000.
1730.
2130.
1640.
1770.
808.
b71.
732.
00
00
00
00
00
00 27
00
00 23
00 11
00
00
00
00
CO
00
00
CO 27
00
00 23
00 11
00
00
2blO.OO
1490.00
1500.00
1400.00
792.00
803.00
28
1450.00
28
776.00
25739.41
25739.68
-------
TRIBUTARY FLOw INFORMATION FOR MICHIGAN
2/3/75
LAKE CODE 2659
MUSKEGON LAKE
MEAN MONTHLY FLO*S ANu IJAILY FLOWS(CFS)
TRIBUTARY
2659A3
2659B1
2659C1
265901
10NTH
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
8
9
10
11
12
1
2
3
4
5
6
7
8
9
YEAR
72
72
72
73
73
73
73
73
73
73
73
73
72
72
72
73
73
73
73
73
73
73
n
73
72
72
72
73
73
73
73
73
73
73
73
73
72
72
72
73
73
73
73
73
7J
73
73
n
MEAN FLOW
751.00
976.00
879.00
1700.00
1280.00
2190.00
1480.00
1050.00
1090.00
724.00
648.00
562.00
1.60
1.80
1.60
4.30
2.60
4.50
4.uO
4.30
2.30
1.10
1.10
1.00
40.00
34.00
40.00
51.00
27.00
46. 00
44.00
55.00
27.00
17.00
12.00
9.40
l.<»0
1.50
1.30
3.80
2.20
4.00
3.60
3.80
1.30
U.dG
0.90
o.ro
DAY
29
3
7
4
4
6
15
3
10
27
29
29
3
7
4
4
(3
15
3
10
27
2*
29
3
7
4
4
6
15
3
10
27
29
29
3
7
4
H
6
15
3
10
2/
29
•FLOW DAY
770.00
1030. O'J
95b.OO
1630.00
1420.00
17tO.OO 27
1340.00
1450.00 23
662.00 11
549.00
590.00
2.40
1.50
2.90
3.90
7.80
3.70 27
3.00
3.90 23
1.10 11
1.10
1. 10
51.00
23.00
30.00
42.00
107.00
3b.CO 27
33.00
53.00 23
18.00 11
10.00
11.00
1.90
1.20
2.40
3.^0
/.30
3.2u 27
2.60
1.60 23
0.60 11
0.9u
0. JO
FLOW
1140.00
64b.OO
657.00
2.90
1.60
1.00
27.00
16.00
14.00
2.40
0.90
0.60
FLOW
634.00
28
1.10
28
13.00
28
O.UO
-------
FLOW INFOKMAT ION
MICHIGAN
2/3/75
LAKE CODE 2659
MObKEGON LAKE
MEAN MONTHLY FLOW'S ANO DAILY FLOWS (CFS)
TKIBUTAKY
2t>59El
2659F1
2659ZZ
MONTH
YEAH
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
8
9
72
72
72
73
73
73
73
73
73
73
73
73
72-
72
72
73
73
73
73
73
73
73
73
73
72
72
72
73
73
73
73
73
73
73
73
73
FLO*
13.00
13.00
14.00
19.00
12.00
20.00
18.00
19.00
11.00
6.50
5.40
4.60
18.00
18.00
19.00
27.00
16. CO
28.00
25.00
27.00
15.00
8.80
7.40
6.30
10.00
10. UO
10.00
20.00
10.00
20.00
20.00
10.00
lo.oo
1 0 . 0 0
10. oO
10.00
DAY
29
3
7
<*
4
6
15
3
10
27
29
29
3
7
t
4
6
15
3
10
27
29
FLOW
17.00
9.90
13.00
Id. 00
3b.OO
17.00
14.00
Id. 00
6.60
4.90
5.00
24.00
13.00
18.00
2*. 00
49.00
23.00
19.00
24.00
9.00
6. BO
6.90
DAY
27
23
11
27
23
11
FLOW OAY
FLOW
13.00
7.00
5.70
lb.00
9.80
7.80
28
5.50
28
7.60
-------
APPENDIX C
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 7b/G2/0*
2t>5voi
43 1* 00.0 086 19 00.0
MUSKEGON LAKE
26 MICHIGAN
DATE
FROM
TO
72/06/13
72/09/19
72/11/14
0001C
TIME DEPTH kv^TER
OF TEMP
DAY FEET
01 35
01 35
01 35
11 50
11 50
11 50
11 SO
1
1
1
1
50
50
50
25
25
25
25
?5
25
0000
0015
0030
OOGO
0004
0015
0022
0030
0037
0044
0000
ooo*
0015
0022
u030
004*
CENT
18.
17.
15.
20.
?0.
20.
20.
20.
17.
7.
7.
7.
7.
7.
2
5
5
*
4
3
0
0
7
5
5
5
b
5
003uO
UO
MG/L
7.
7.
6.
9.
8.
8.
8.
3.
4.
9.
9.
9.
9.
9.
8
1
6
0
8
b
2
8
0
4
5
6
b
6
11EPALES
OC077
FK^NSP
SECCHl
INCHES
62
6u
12
0009*
CNDUCrVY
FIELD
MiCriOMHO
360
360
360
328
3*0
340
330
340
330
330
380
37o
370
380
3oo
370
b
00400
PH
su
8. 30
8.20
8.15
8.48
8.50
8.45
8.*5
8.35
7.80
7.85
7.60
7.80
7.80
7.70
7.70
7.70
00410
T ALK
CAC03
MG/L
127
126
124
130
131
129
129
129
125
127
144
142
1*7
1*4
1*4
14*
2111202
0030
00630
NU26.N03
N-TOTAL
Ml3/L
0.040
0.040
0.070
0.020
0.030
0.030
0.030
0.030
0.030
0.030
0.150
0.150
0.150
0.150
0.160
0.160
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.060
0.090
0.130
0.050
0.060
0.050
0.060
0.060
0.360
0.360
0.220
0.220
0.220
0.210
0.220
0.220
00665
PHDS-TOT
MG/L P
0.056
0.053
0.056
0.046
0.058
0.068
0.066
0.068
0.142
0.100
0.530
0.048
0.046
0.053
0.058
0.059
00666
PHOS-DIS
MG/L P
0.044
0.044
0.045
0.037
0.040
0.047
0.051
0.049
0.080
0.063
0.036
0.037
0.037
0.036
0.039
0.037
J2217
DATE TIME DEPTH CHLKPHYL
F«UM OF A
TO DAY FEET UG/L
72/06/13 01 35 0000 13.OJ
72/09/19 11 50 OOOo 8.BJ
72/11/1"* 11 25 0000 2.bj
J V4LUE KNOWN TO BE IN ERROR
-------
STORET RETRIEVAL DATE 75/03/04
265902
43 14 00.0 086 15 00.0
MJSKEGON LAKE
26 MICHIGAN
DATE
FKOM
TO
72/06/13
72/09/19
72/11/14
00010
TIME DEPTH WATER
OF TtMP
DAY FEET
02
02
02
09
09
09
09
09
09
12
12
12
12
12
20
20
20
25
25
25
25
25
25
25
25
25
25
25
0000
0015
0025
0000
0004
0015
0020
0025
0031
0000
0004
0015
0021
0028
CENT
21.
18.
15.
20.
20.
19.
19.
19.
7.
7.
7.
7.
2
5
6
0
0
9
5
1
4
3
2
1
00300
DO
MG/L
6.
7.
3.
6.
5.
h.
4.
4.
9.
9.
9.
10.
J
4
6
4
9
0
2
3
9
6
9
1
HtPALES
00300
DO
MG/L
6. J
7.4
3.6
6.4
5.9
6.0
4.2
4.3
9.9
9.6
9.9
10.1
U0077 uOd94
TrtANSP CNDUCTVY
StCCHl FIELD
INCHES MICROMhO
60 340
350
350
60 34b
340
340
345
330
333
66 380
380
380
380
380
b
00400
Prl
SO
8.10
8.10
7.65
8.0U
8.00
8.00
8.00
7.80
7.80
7.8u
7.80
7.80
7.8o
7.80
00410
T ALK
CAC03
MG/L
129
127
128
132
132
131
131
134
133
164
149
150
153
151
2111202
0030
00630
N02&N03
N-TOTAL
MG/L
0.110
0.100
0.110
0.070
0.080
0.060
0.070
0.040
0.040
0.600
0.170
0.170
0.170
0.190
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.160
0.150
0.380
0.180
0.180
0.170
0.180
0.270
0.280
1.210
0.230
0.230
0.240
0.240
00665
PHOS-TOr
MG/L P
0.079
0.080
0.089
0.079
0.090
0.087
0.104
0.096
0.071
0.065
0.065
0.070
0.071
0.077
00666
PHOS-DIS
MG/L P
0.066
0.066
0.083
0.067
0.068
0.065
0.063
0.058
0.055
0.049
0.051
0.055
0.057
0.059
DATE
FROM OF
TO DAY
32217
DEPTH CHLRPHYL
A
FEET UG/L
72/06/13 02 20 0000 17. 9J
72/09/19 09 25 0000 3.7J
72/11/14 12 2S 0000 O.bJ
J VALUF KNOWN TO BE IN ERROR
-------
STOrtET RETRIEVAL DATE 75/02/04
265903
43 I'* 00.0 U86 16 00.0
MUSKtbUN LAKE
to MICHIGAN
DATE
FROM
TO
72/06/13
72/09/19
72/11/14
00010
TIME DEPTH WATER
OF TEMP
DAY FEET
15
15
15
10
10
10
10
10
10
10
10
10
11
11
11
11
11
11
00
00
00
05
05
05
05
05
05
05
05
05
S5
55
55
55
55
55
0000
0015
0030
0000
0004
0015
0021
0028
0035
0042
0050
0059
0000
0004
0015
0025
0040
0054
CENT
19
18
16
20
2u
20
19
19
17
14
!<*
7
7
7
7
7
.6
.1
.1
.2
.0
.0
.9
.4
.0
.9
.2
.5
.5
.b
.5
.4
003CO
00
MG/L
9
7
6
7
7
b
1
1
0
0
9
g
9
9
9
.0
.0
.0
.4
.2
.9
.8
.0
.2
.^
.6
.6
.6
.5
. t>
OOC77 00094
TKMNSP CNOUCTVY
SECCHI FIELD
INCHES HICrtOMriO
66
60
66
355
360
300
340
335
340
340
340
320
325
3u8
300
3bO
360
340
330
330
33o
11EPALES
3
00400
PH
SU
6.30
8.20
7.95
8.25
b.2b
8.15
8.15
8.10
7.63
7.60
7.45
7.50
7.70
7.70
7. 7u
7.70
7.70
7.70
00410
r ALK
CAC03
MG/L
128
127
125
128
128
127
126
127
125
124
123
123
149
150
152
145
145
147
2111202
0050
00630
N02&N03
N-TOfAL
MG/L
0.140
0.090
0.060
0.030
0.020
0.030
0.030
0.030
0.040
0.020
0.030
0.030
0.150
0.150
0.160
u.160
0.160
0.170
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.140
0.130
0.150
0.060
0.050
0.060
0.070
0.090
0.490
0.810
0.890
0.900
0.220
0.220
0.230
0.220
0.220
0.240
00665
PHOS-TOT
MG/L P
0.064
0.059
0.052
0.051
0.060
0.062
0.065
0.057
0.089
0.131
0.156
0.149
0.063
0.058
0.066
0.048
0.048
0.047
00666
PHOS-DIS
MG/L P
0.054
0.050
0.027
0.040
0.040
0.042
0.044
0.042
0.073
0.110
0.111
0.111
0.044
0.043
0.043
0.035
0.036
0.036
DATL TIME DEPTH
FROM OF
TO DAY FEET
72/06/13 15 00 0000
72/U9/19 10 05 0000
72/1 1/14 i 1 35 0000
32217
A
UG/L
28. U
10. OJ
1. U
J VALUE KNOrtM TO BE IN FRROR
-------
APPENDIX D
TRIBUTARY DATA
-------
STORET RETRIEVAL DATE 7S/02/JH
2659A1 Lb2659Al
43 IH 00.0 086 20 00.0
MJSKE60N KlvEK
26 ib LAKE HARBOR
O/^UbKtijOiM LAKE
bAMPLE OUTLET CHANNEL BEACHbT
HEPALtS 2111204
4 0000 FEET
IN MUSKEbN
DEPTH
DATE
FKOM
TO
72/10/29
72/12/03
73/01/07
73/02/04
73/03/04
73/04/06
73/04/27
73/05/15
73/06/03
73/06/23
73/07/10
73/07/28
73/09/29
00 630
TIME DEPTH M02&.NOJ I
OF N-TOTAL
DAY FEET
11
10
10
09
10
16
10
09
11
16
10
08
15
09
40
40
50
35
00
25
50
00
00
10
50
30
00
30
MG/L
I!
0
u
0
0
C
0
0
c
C
u
0
0
0
.156
.197
.300
.370
.350
.260
.Ot>2
.0<+8
.Olo*
.011
.022
.Oau
.072
.056
00625
OT KJEL
N
MG/L
0
0
0
i)
0
0
0
0
1
0
1
0
0
u
.6uO
.630
.690
.580
. 70u
.t)30
.760
.660
.000
.960
.680
.760
.630
.^60
C0610 00671 0066b
NH3-N PHOS-DIS PHOb-TOT
TOTAL ORCHO
Mb/L
0 .
0.
0 .
0.
0.
0.
0.
0.
0.
c.
0.
0.
0.
0.
147
132
120
051
105
050
026
Oil
037
008
038
018
054
056
MG/L
0.
0.
u •
0.
0.
0.
0.
0.
0.
u .
0.
0 •
0.
0.
p
034
042
04U
029
u33
023
017
006
014
Oil
007
012
020
010
MG/L P
0.075
0.072
0.0 72
0.060
0.0 70
O.Obo
0.057
0.060
0.060
0.050
0.055
0.037
0.045
0.050
K VALUE.KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/02/04
2669A2 L62659A2
43 Ib 00.0 086 I'd 30.0
MUb>KLGON HiVEP.
26 15 FwIN LAKE
I/MUbKEGON LAKE
MIDDLE CHANNEL N EDGE OF MOSKEGON
HEPALES 211120'*
4 0000 FEET DEPTH
DATE
FHOM
TO
72/10/24
72/12/03
73/01/07
73/02/04
73/03/04
73/04/06
73/04/27
73/05/15
73/06/03
73/06/23
73/07/10
73/07/28
73/07/30
73/09/29
00630 00625
TIME DEPTH N02kN03 TOT KJEL
OF N-TOTAL N
DAY FEET
10
10
13
09
09
14
09
09
09
15
11
09
14
11
15
05
35
00
15
00
50
40
30
15
30
25
50
30
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.169
.210
.51J
.430
.430
.13d
.066
.110
.lt>0
.176
.130
.098
.063
.082
MG/L
0
0
0
0
0
0
0
0
1
0
0
0
0
0
.575
.440
.630
.460
.630
.460
.540
.560
.100
.560
.660
.480
.700
.400
OOolO 00071 00665
NH3-N PHOS-fHS PHOS-TOT
TOTAL UkTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
050
031
038
040
066
024
008
008
037
015
040
026
017
026
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
p
012
014
016
018
020
008
008
005K
014
014
005K
022
015
026
MG/L P
0.047
0.028
0.028
0.035
0.05b
0.020
0.030
0.035
0.035
0.040
0.037
0.045
0.035
0.050
K VALUE KNOWN TO t3E
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/02/04
2659A3 LS2659A3
43 16 30.0 086 12 30.0
r-lUSKEGON K1VER
26 15 TWli'4 LAKE
i/'4USKEGON LAKE
NORTH CHANNEL 1.5 MI E
lltPALES
NORTH MUSKEGON
2111204
0000 FEET DEPTH
DATE
FROM
TO
72/10/24
72/12/03
73/01/07
73/02/04
73/03/04
73/04/06
73/04/27
73/05/15
73/06/03
73/06/23
73/07/10
73/07/28
73/07/30
73/09/29
00630 00625
TIME DEPTH N026.N03 TOT KJEL
OF N-TOTAL (M
DAY FEET
10
10
13
08
09
14
10
09
09
15
11
09
14
12
55
09
50
45
?0
07
05
50
40
25
4U
15
30
25
MG/L
0
0
u
0
0
(J
0
0
u
0
0
-------
STORET RETRIEVAL DATE 75/02/04
2659B1 LS265961
43 15 00.0 086 19 00.0
GREEN CREEK
26 15 LAKE HAKBOR
T/MUSKEGON LAKE
aRDG 1.5 MI W N MU5KEGON STP UISC TO LK
llEPttLES 2111204
<+ 0000 FEET DEPTH
DATE
FROM
TO
72/10/29
72/12/03
73/02/0*
73/03/04
73/04/06
73/0*/27
73/05/15
73/06/03
73/06/23
73/07/10
73/07/28
73/07/30
73/09/29
00630 00625
TIME DEPTH IM02NN03 TOT KJEL
OF N-TOTAL N
DAY FEET
11
10
09
09
15
10
09
10
15
11
08
08
09
25
35
30
50
20
45
15
50
50
00
45
45
45
MG/L
0
0
0
0
c
0
0
J
0
0
0
0
0
.156
.300
.300
.340
.220
.120
.1*0
.086
.022
.029
.010K
.013
.072
MG/L
1.
2.
0.
0.
1.
0.
0.
0.
2.
0.
0.
0.
0.
050
730
360
585
651
610
8*0
740
800
530
520
5*0
500
00610 00671 00665
NH3-N PHOS-DIS PriOS-TOT
TOTAL URTHO
MG/L
0.
G.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
115
144
052
064
060
029
069
084
060
032
027
022
105
MG/L
0.
0.
0.
G.
U.
0.
0.
0.
0.
0.
0.
0.
0.
p
006
008
006
007
006
Oil
007
025
022
008
016
017
013
Mb/L P
0.022
0.018
0.015
0.025
0.015
0.055
0.025
0.055
0.080
0.030
0.030
0.030
Ot035
K VALUE KNOrfN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL OATE
2659C1 L;>2659Ci
43 1<+ 30.0 086 18 00.0
REAR LAKE OOTLET
26 ib LAKE HARBOR
T/MUSKEGON LAKE
bT HWY 213 BROG SW NORTH MUSKEGON
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/29
72/12/03
73/02/04
73/03/0*
73/04/06
73/0<*/27
73/05/15
73/06/03
73/06/23
73/07/10
73/07/28
73/07/30
73/09/29
uOt>3u 00625
TIMF DEPTH N026.N03 TOT KJtL
OF' .J-TOTAL N
DAY FEET
11
10
09
09
Ib
10
09
10
15
11
09
08
09
15
28
15
45
CO
25
25
uo
45
10
00
00
55
MG/L
0
(j
0
0
0
u
0
0
0
0
0
0
0
.10H
.273
.n3o
.450
.270
.017
.010K
.012
.011
.01-b
.294
.010K '
.013
MG/L
1
10
0
0
0
0
0
1
7>
1
1
1
0
.350
.000
.630
.660
.630
. 7<*U
.60u
.70U
.400
.320
.500
.32U
.780
00610 00671 0066s
IMM3-N PriOS-UlS PHOS-TOT
TOTAL OHTnO
MG/L
U.
0.
0.
'J .
0.
0.
U.
0 .
0.
0.
a.
0 .
0.
080
410
13u
147
0<+2
009
005l\
037
035
023
035
105
032
MG/L
0 .
0.
0.
0.
0.
0.
0 .
0.
j.
U.
0 •
0 .
U •
p
006
014
010
006
010
006
006
007
010
006
023
026
010
MG/L P
0.048
0.050
0.030
0.030
0.040
0.045
0.050
0.040
0.0/0
0.090
0.107
0.095
0.065
K VALUE KNOWN TO BE
LLSS THAN INDICATED
-------
STORET RETRIEVAL DATE 7S/02/04
LS26S9D1
*3 Ib 00.0 086 13 30.0
t-0'JKMlLE CREEK-
26 IS MUSKEGON
T/MUSKEGON LAKt
CITY BRDG W US31 HRDG N EDGE MOSKEGON
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/29
72/12/03
73/01/07
73/02/0^
73/03/04
73/04/06
73/04/27
73/05/15
73/06/03
73/06/23
73/07/11
73/07/29
73/U8/27
73/09/29
00630 00625
.TIME DEPTH N02<>N03 TOT KJEL
OF N-TOTAL N
DAY FEET
10
09
13
09
09
14
09
10
10
15
08
09
06
11
40
58
28
00
05
41
50
05
30
00
30
45
55
45
MG/L
1
0
1
1
1
1
0
u
(j
0
0
0
0
0
.070
.300
.780
.6<+u
.420
.220
.850
.730
.115
.072
.014
.013
.010*
.580
MG/L
0.
1.
1.
1.
0.
0.
0.
0.
1.
0.
0.
1.
0.
0 .
700
470
600
000
660
5
-------
STORET RETRIEVAL DATE 75/02/04
2b59tl
43 14 30.0 Obo 14 jO.O
WT'tRSON CKLtK
26 15 MUSKEGOrt
T/MUSKtbOlM LAKfc.
AT US 16 6RUG IN MUbKEGON
11EPALES
2111204
0000 FEET
DEPTH
DATE TIME DEPFr
FROM OF
TO DAY FEET
72/10/29
72/12/03
73/01/07
73/02/04
73/03/04
73/04/Ob
73/04/27
73/05/15
73/06/03
73/06/23
73/07/11
73/07/29
73/08/27
73/09/29
10 30
11 05
11 32
10 15
10 30
15 40
11 25
12 00
13 15
16 45
08 45
10 00
07 05
12 00
00630
N02NN03
i\i-TuTAL
HG/L
l.tUO
0.420
2.100
1.620
1.520
1.520
i.3t>J
1.440
0.8*0
1.220
0.730
1.200
1.2oO
1.460
00'62S
TOT KJEL
N
MG/L
1.760
2.6uO
l.?00
1.380
1.200
1.760
0.8HO
1.100
0.9»0
1.8UO
0.960
0.9UO
0.880
0.940
00610
NH3-N
TOTAL
MG/L
0.4^0
0.540
J.530
0.0 S4
0.320
J.315
0.231
0.290
J.20U
0.378
0 .270
0.265
0 . 345
. 1 b4
0.100
0.147
0.087
0.105
0.068
00bt>5
HriOb-lOT
MG/L P
0.1 ft>
0.140
0.100
0.110
0.110
0.110
0.130
0.160
0.270
U.200
u.260
U. 18s
o. 1 70
0.175
-------
STORET RETRIEVAL DATE 75/02/U4
2659F1 LS2659F1
43 13 00.0 086 17 00.0
KOODIMAN CKEEK
26 15 LAKE HARBOR
T/MUSKEGON LAKE
LAKESriORE ORIVE BRDG M EOGEMUSKEGON
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/29
72/12/03
73/01/07
73/02/On
73/03/0*
73/04/06
73/04/27
73/05/15
73/06/03
73/06/23
73/07/10
73/07/29
73/09/29
00630 006?5
TIME DEPTH f\i02\N03 TOT KJEL
OF N- TOTAL N
DAY- FEET MG/L MG/L
10
09
1**
08
08
13
14
11
11
14
16
09
12
00
40
40
00
45
00
05
30
30
35
40
25
30
u
0
1
1
1
0
0
1
0
(J
0
u
0
.420 0.
.260 1.
•4nO 1.
•6?0 2.
.680 2.
.890 ]
.780 ]
.020 ]
.720 ]
.550 ]
.240 ]
1.
I.
1.
I.
1.
1.
.410 1.
.590 0.
900
3?0
260
940
200
uOO
050
000
890
470
700
000
840
00610 00671 00665
NH.3-N PMOS-DIS KHOb-TOT
TOTAL ORTrlO
MG/L MG/L P MG/L P
0 .
•j •
0.
0.
0.
.).
0.
0.
0.
0.
0.
0.
0.
370
290
410
460
430
210
115
160
016
190
O&l
100
060
0.
0.
0.
0.
0.
0.
0.
0 .
0.
0*
0.
0.
0.
105
115
126
150
230
048
021
014
019
081
029
04B
032
0.160
0.180
0*250
0.270
0.360
0.130
0.140
0.080
0.150
0.225
0.140
0.145
0.135
------- |