U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
FORD LAKE
MICHIGAN
EPA REGION V
WORKING PAPER No, 193
PACIFIC NORTHWEST ENVIRONMENTAL RESEARCH LABORATORY
An Associate Laboratory of the
NATIONAL ENVIRONMENTAL RESEARCH CENTER - CORVALLIS, OREGON
and
NATIONAL ENVIRONMENTAL RESEARCH CENTER - LAS VEGAS, NEVADA
•aaPO 697.032
-------
REPORT
ON
FORD LAME
WASKTENAW COUMY
MICHIGAN
EPA REGION V
WORKING PAPER No, 193
WITH THE COOPERATION OF THE
MICHIGAN DEPARTMENT OF NATURAL RESOURCES
AND THE
MICHIGAN NATIONAL GUARD
FEBRUARY,, 1975
-------
CONTENTS
Page
Foreword i i
List of Michigan Study Lakes iv
Lake and Drainage Area Maps v, iv
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
-------
n
LOR.IW.iKi
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)j,
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
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.
-------
IV
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
Ka lamazoo
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
-------
YPSILANTI
51,
FORD and BELLEVILLE LAKES
(g) Tributary Sampling Site £§Indirect Drainage Area
X Lake Sampling Site Y/A Urban Area
^ Sewage Treatment Facility
2 3 Mi.
j i
Scale
Map Location
83°30'
42°12-
83°26'
-------
POflMGE,
LAKE
OAKLAND CO.
4^20-
FORD and BELLEVILLE LAKES
Indirect Drainage Area
Urban Area
Tributary Sampling Site
x Lake Sampling Site
f Sewage Treatment Facility
33° 50'
-------
FORD LAKE
STORE! NO. 2629
I. CONCLUSIONS
A. Trophic Condition:
Survey data and the records of others (Ketelle and Uttormark,
1971) indicate that Ford Lake is eutrophic. Near depletion of
dissolved oxygen occurred at the 25-foot depth at station 2 in
June, and Survey limnologists noted a widespread blue-green algal
bloom during the September sampling.
Of the 35 Michigan lakes sampled in November when essentially
all were well-mixed, 22 had less mean total phosphorus, 24 had
less mean dissolved phosphorus, and 30 had less mean inorganic
nitrogen; of all 41 Michigan lakes sampled, 25 had less mean
chlorophyll a_, and 26 had greater Secchi disc transparency*.
B. Rate-Limiting Nutrient:
A significant loss of phosphorus occurred in the algal assay
sample between the time of collection and the beginning of the
assay, and the results are not representative of conditions in
the lake at the time the sample was taken. However, the lake
data show phosphorus to be limiting in September and November
and nitrogen to be limiting in June.
* See Appendix A.
-------
C. Nutrient Controllability:
1. Point sources—During the sampling year, Ford Lake
received a total phosphorus load at a rate about eight times
the rate proposed by Vollenweider (in press) as "dangerous";
i.e., a eutrophic rate (see page 13). Now, Ford Lake has a
rather short hydraulic retention time of 15 days, and Vollen-
weider's model may not be applicable. Nonetheless, the exist-
ing trophic condition of the lake is evidence of excessive
nutrient loads.
It is calculated that the municipal waste treatment plants
included in this study contributed about 92% of the total phos-
phorus load. The Ann Arbor plant, with phosphorus removal,
contributed about 42% of the total load, and the remaining
three plants (Ypsilanti, Scio-Webster, and Dexter) contributed
a little over 50%. Removal of 85% of the phosphorus at the
•three municipal point sources now without phosphorus control
2
would reduce the loading rate to 9.26 g/m /yr or less than five
times the eutrophic rate.
Considering the questionable applicability of Vollenweider's
model, it is likely that the degree of phosphorus removal noted
above would improve the trophic condition of Ford Lake and, in
particular, would reduce the incidence and severity of nuisance
algal blooms. Also, downstream Belleville Lake* would benefit
* Working Paper No. 184.
-------
from phosphorus control since only 19% of the phosphorus load
to Ford Lake is retained in the lake; i.e., about 81% of the
point-source load to Ford Lake impacts Belleville Lake as well.
2. Non-point sources—It is estimated that non-point
sources, including precipitation; contributed 7.5% of the total
phosphorus load during the sampling year.
The phosphorus export of the Huron River was quite low as
compared to other Michigan streams sampled during the Survey
year (see page 13).
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry :
1. Surface area: 1,050 acres.
2. Mean depth: 14.3 feet.
3. Maximum depth: 39 feet.
4. Volume: 15,015 acre-feet.
5. Mean hydraulic retention time: 15 days.
B. Tributary and Outlet:
(See Appendix B for flow data)
1. Tributaries -
Name Drainage area* Mean flow*
2
Huron River 809.0 mi 494.9 cfs
Minor tributaries & 2
immediate drainage - 3.4 mi 2.8 cfs
Totals 812.4 mi2 497.7 cfs
2. Outlet -
Huron River 814.0 mi2** 497.7 cfs
C. Precipitation***:
1. Year of sampling: 40.6 inches.
2. Mean annual: 39.9 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".
-------
III. LAKE WATER QUALITY SUMMARY
Ford 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 two
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 two stations for phytoplank-
ton 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 ^analyses. The maximum depths
sampled were 15 feet at station 1, and 25 feet at station 2.
The results obtained are presented in full in Appendix C, and the
data for the fall sampling period, when the lake was essentially 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.
-------
A. Physical and chemical characteristics:
FALL VALUES
Parameter
Temperature (Cent.)
Dissolved oxygen (mg/1)
Conductivity (ymhos)
pH (units)
Alkalinity (mg/1)
Total P (mg/1)
Dissolved P (mg/1)
N02 + N(h (mg/1)
Ammonia Img/1)
(11/13/72)
Minimum Mean
7.5
8.6
510
8.1
193
0.077
0.050
0.570
0.710
Median
Maximum
7.5
9.4
524
8.1
196
0.105
0.058
0.702
0.834
7.6
9.0
520
8.1
195
0.110
0.060
0.570
0.860
7.7
11.0
550
8.2
202
0.118
0.062
1.220
0.900
ALL VALUES
Secchi disc (inches)
21
44
44
64
-------
B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
06/16/72
09/19/72
11/13/72
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Oocystis
Schroederia
Dinobryon
Cocconeis
Cryptomonas
Other genera
Total
Anabaena
Flagellates
Lyngbya
Stephanodiscus
Cryptomonas
Other genera
Total
Cyclotella
Stephanodiscus
Melosira
Navicula
Raphidiopsis
Other genera
Number
per ml
1,501
1,302
741
434
416
1.013
5,407
2,
1,
1,
Total
981
660
132
566
415
2.680
9,434
275
166
137
137
137
804
1,656
-------
8
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)
06/16/72 01 16.2
02 26.5
09/19/72 01 6.4
02 5.0
11/13/72 01 2.6
02 31.7
C. Limiting Nutrient Study:
A 31% loss of phosphorus occurred in the algal assay sample
between the time of collection and the beginning of the assay,
and the results are not indicative of conditions in the lake at
the time of sampling.
The lake data indicate phosphorus limitation in September
(N/P ratio was 15/1) and November (N/P = 26/1) but nitrogen
limitation in June (N/P =9/1).
-------
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
tributary sites indicated on the map (page vi), except for the high
runoff months of March, April, and December, when two samples were
collected from station A-l; two samples were collected from station
A-2 during April and December. Sampling 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 Michigan District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey
computer program for calculating stream loadings*. The nutrient
loads given for the Huron River are those measured at station A-2
minus the upstream point sources.
Nutrient loadings for unsampled "minor tributaries and immediate
drainage" ("ZZ" of U.S.G.S.) were estimated by using the means of the
nutrient concentrations in Mill Creek at station D-l and multiplying
by the mean ZZ flow.
* See Working Paper No. 1.
-------
10
The operators of the Ann Arbor, Dexter, Scio-Webster, and Ypsilanti
wastewater treatment plants provided effluent samples and corresponding
flow data.
A. Waste Sources:
1. Known Municipal* -
Name
Ann Arbor
Dexter
Scio-Webster
Ypsilanti
2. Industrial - Unknown
Pop.
Served
100,000
1,700
500
21 ,000
Mean Receiving
Treatment Flow (mgd) Water
act. sludge
+ P-removal
prim.
clarifier
trickling
filter
act. sludge
16.477
0.235
0.088
7.120
Huron River
Mill Creek
Huron River
Ford Lake
* Sprow, 1974.
-------
11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
Ibs P/ % of
Source yr total
a. Tributaries (non-point load) -
Huron River 10,940 7.2
b. Minor tributaries & immediate
drainage (non-point load) - 390 0.3
c. Known municipal STP's -
Ann Arbor 63,790 42.1
Dexter 7,090 4.7
Scio-Webster 1,160 0.8
Ypsilanti 67,930 44.8
d. Septic tanks - Unknown
e. Industrial - Unknown
f. Direct precipitation* - 160 0.1
Total 151,460 100.0
2. Outputs -
Lake outlet - Huron River 122,780
3. Net annual P accumulation - 28,680 pounds
* See Working Paper No. 1.
-------
12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
Ibs N/ % of
Source yr total
a. Tributaries (non-point load) -
Huron River 1,475,530 59.9
b. Minor tributaries & immediate
drainage (non-point load) - 16,360 0.7
c. Known municipal STP's -
Ann Arbor 780,380 31.7
Dexter 26,710 1.1
Scio-Webster 3,260 0.1
Ypsilanti 151,490 6.1
d. Septic tanks - Unknown
e. Industrial - Unknown
f. Direct precipitation* - 10.120 0.4
Total 2,463,850 100.0
2. Outputs -
Lake outlet - Huron River 2,167,580
3. Net annual N accumulation - 296,270 pounds
* See Working Paper No. 1.
-------
13
D. Mean Annual Non-point Nutrient Export by Subdrainage Area:
2 2
Tributary Ibs P/mi /yr Ibs N/mi /yr
Huron River 14 1,824
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/nr/yr
Total
144.2
16.17
Accumulated
27.3
3.06
Total
2,346.5
263.0
Accumulated
282.2
31.6
Vollenweider loading rates for phosphorus
(g/m^/yr) based on mean depth and mean
hydraulic retention time of Ford Lake:
"Dangerous" (eutrophic rate) 1.96
"Permissible" (oligotrophic rate) 0.98
-------
14
V. LITERATURE REVIEWED
Fetterolf, Carlos, 1972. Personal communication (lake morphometry).
MI Dept. of Nat. Resources, Lansing.
Ketelle, Martha J., and Paul D. Uttormark, 1971. Problem lakes of
the United States. EPA Water Poll. Contr. Res. Ser., Proj.
#16010 EHR.
Sprow, David L., 1974. Personal communication (wastewater treatment
plants). MI Dept. Publ. Health, Lansing.
Vollenweider, Richard A. (in press). Input-output models. Schweiz.
Z. Hydro!.
-------
15
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
26AO HOLLOWAY RESERVOIR
26Ai CARO RESERVOIR
26A2 BOAHDMAN HrDRO PONO
2603 ALLEGAN LAKE
2606 BARTON LAKE
2609 BELLEVILLE LAKE
2610 BETS1E LAKE
2613 BRIGHTON LAKE
26»7 LAKE CHARLEVOIX
2618 LAKE CHEMUNG
2621 CONSTANTINE RESERVOIR
2629 FORD LAKE
2631 FREMONT LAKE
2640 JORDAN LAKE
26*3 KENT LAKE
2648 LAKE HACATAWA
26
-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE LAKE NAME
Z693 ST LOUIS RESERVOIR
2694 CRYSTAL LAKE
2695 HIGGINS LAKE
2696 HOUGHTON LAKE
269? THOMPSON LAKE
2698 PERE MARQUETTE LAKE
2699 STRAWBERRY LAKE
MEAN
TOTAL P
0.134
0.009
0.007
0.018
0.043
0.032
0.069
-FALL VALUtb-
MEAN
DISS P
0.093
0.006
0.005
0.008
0.029
0.024
0.050
MEAN
INURCi 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
CHLOWA
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
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES KITH HIGHER VALUES)
LAKE
CODE LAKE NAME
26AO HOLLOWAY RESERVOIR
26Ai CARD RESERVOIR
26AZ BOAKOMAN HYDRO POND
2603 ALLEGAN LAKE
2606 BARTON LAKE
2609 BtLLEVILLE LAKE
2610 BETSIE LAKE
2613 BRIGHTON LAKE
2617 LAKE CHAKLEVOIX
2618 LAKE CHEMUNG
2621 CONSTANTINE RESERVOIR
2629 FORD LAKE
2631 FREMONT LAKE
26<>0 JORDAN LAKE
2643 KENT LAKE
2648 LAKE HACATAWA
2649 MANISTEE LAKE
2659 MUSKEGON LAKE
2665 PENTWATER LAKE
2671 RANDALL LAKE
2672 ROGERS POND
2673 ROSS RESERVOIR
2674 SANFORD LAKE
2683 THORNAPPLE LAKE
2685 UNION LAKE
2688 WHITE LAKE
2691 MONA LAKE
2692 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)
( 34)
( 7)
( 8)
( 9>
( 271
( 11)
I 32)
( 17)
( 25)
( 12)
( 0)
( 4)
( 20)
( 3)
( 28)
I 13)
< 24)
( 2)
( 26)
( 21)
( 30)
( 19)
( 14)
( 23)
( 1)
< 5)
43
54
97
31
20
37
77
23
91
71
83
29
0
11
69
14
74
10
63
6
66
57
80
46
26
60
3
9
I IS)
( 19)
I 34)
( 11)
( 7)
( 13)
( 27)
< 8)
( 32)
( 25)
1 29)
( 10)
( D)
( 4)
I 24)
( 5)
( 26)
( 14)
( 22)
( 2)
( 23)
( 20)
1 28)
( 16)
I 9)
I 21)
I 1)
( 3)
MEAN
INOHG N
17
0
69
31
14
20
80
34
83
94
40
11
23
6
63
3
77
54
51
43
86
57
74
9
26
66
37
46
( 6)
( 0)
( 24)
( 11)
I 5)
( 7)
( 28)
( 12)
( 29)
( 33)
( 14)
( 4)
( 8)
( 2)
( 22)
( 1)
( 27)
( 19)
( 18)
( 15)
( 30)
( 20)
( 26)
( 3)
I 9)
( 23)
( 13)
( 16)
500-
MEAN SEC
57
3
91
6
29
11
17
34
94
86
29
29
54
69
40
0
46
60
66
23
63
9
20
51
37
80
43
77
1 20)
< 1)
(32)
( 2)
( 9)
( 4)
( 6)
( 12)
( 33)
( 30)
( 9)
I 9)
( 19)
( 24)
( 14)
( 0)
( 16)
( 21)
I 23)
1 8)
( 22)
1 3)
( 7)
I 18)
I 13)
( 28)
( 15)
( 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
I 21)
( 17)
( 33)
I 10)
( 5)
( 4)
I 30)
( 0)
( 31)
I 16)
( 1)
( 13)
( 3)
( 9)
( 2)
( 8)
( 28)
( 24)
( 11)
( 7)
( 27)
( 22)
( 15)
( 14)
( 12)
I 26)
I 6)
( 23)
15-
MIN 00
63
54
97
40
3
79
94
90
60
11
90
23
11
0
36
43
46
11
11
86
51
79
71
49
79
31
20
27
( 22)
( 19)
( 34)
( 14)
( 1)
( "26)
( 33)
( 31)
( 21)
( 2)
( 31)
( 8)
( 2)
( 0)
( 12)
( 15)
( 16)
( 21
( 2)
( 30)
( 18)
( 26)
( 25)
( 17)
I 26)
( 11)
I 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
325
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
MEAN MEAN
TOTAL f> OISS 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
89
97
91
60
71
49
( 10)
( 31)
( 34)
( 32)
( 21)
( 25)
( 17)
500-
MtArt SEC
14
89
97
71
83
49
74
( b)
( 31)
( 34)
( 25)
( 29)
( 17)
( 26)
MEAN
CHLORA
83
91
97
71
51
54
57
( 29)
( 32)
( 34)
( 25)
( 18)
( 19)
( 20)
15-
MIN 00
69
36
57
79
11
66
27
( 24)
( 12)
( 20)
( 26)
( 2)
( 23)
( 9)
INDEX
NO
2
-------
APPENDIX B
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW INFORMATION FOR MICHIGAN
a/3/75
LAKE CODE 2629
FORD LAKE
TOTAL DRAINAGE AREA OF LAKE(SO MI) 814.00
SUB-DRAINAGE
TRIBUTARY AREA(SO MI)
2639A1
2629A2
2629ZZ
814.00
809.00
5.00
JAN
537.00
477.99
2.80
FEB
629.00
606.02
3.50
MAR
APR
MAY
NORMALIZED FLONS(CFS)
JUN JUL AUG
963.
996.
5.
.00
.90
.70
977.
1022.
5.
.00
.13
.90
678
707
4
.00
.38
.10
386
441
2
.00
.71
.50
252.00
244.26
1.40
185.00
177.11
1.00
SEP
205.00
216.59
1.20
OCT
285.00
267.81
1.50
NOV
406.00
365.96
2.10
DEC
MEAN
482.00 497.74
427.85 494.90
2.50 2.84
SUMMARY
TOTAL DRAINAGE AREA OF LAKE = 814.00
SUM OF SUB-DRAINAGE AREAS = 814.00
MEAN MONTHLY FLOWS AND DAILY FLOWS(CFS)
TOTAL FLOW IN
TOTAL FLOW OUT
5985.89
5985.00
TRIBUTARY MONTH YEAH
2629A1
2629A2
2629ZZ
MEAN FLOW DAY
FLOW DAY
FLOW DAY
FLOW
10
11
12
1
2
3
4
5
6
7
a
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
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
f -J
f J
73
73
73
73
73
73
73
324.00
689.00
734.00
1120.00
648.00
1540.00
1160.00
867.00
808.00
602.00
508.00
238.00
322.00
685.00
729.00
1110.00
644.00
1540.00
1150.00
861.00
803.00
599.00
505.00
237.00
2.00
4.20
4.50
6.80
4.00
9.40
7.10
5.30
4.90
3.70
3.10
1.50
28
24
16
13
10
11
15
31
26
24
28
27
28
2
13
10
11
15
31
26
24
28
27
600.00
703.00
724.00
785.00
793.00
1490.00 25
883.00 30
1260.00
515.00
363.00
282.00
166.00
596.00
629.00 16
781.00
789.00
1480.00
877.00 25
1250. 00
512.00
361.00
280.00
165.00
2030.00
528.00
719.00
1220.00
-------
APPENDIX C
PHYSICAL and CHEMICAL DATA
-------
STORET RETRIEVAL DATE 75/02/04
262901
42 13 30.0 083 3b 30.0
FORD LAKE
26 MICHIGAN
U0010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FEET CENT
72/06/16 IB 05 0000 22.4
18 05 0015 21.0
72/09/19 09 30 0000
09 30 0004 21.3
72/11/13 12 25 0000 7.5
00300 0U077 00094
oo TKANSP CNOucrvY
SECCHl FIELD
MG/L INCHES MICROMHO
10.6
6.0
6.0
11.0
54
21
38
530
535
540
540
550
11EPALES
4
00400
PH
SU
fa. 29
7.91
7.45
7.55
8.20
00410
T ALK
CAC03
MG/L
190
191
162
160
202
2111202
0020
00630
N026.N03
N-TOTAL
MG/L
0.450
0.420
0.710
0.740
1.220
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.440
0.630
0.900
0.800
0.710
00665
PHOS-TOT
MG/L P
0.113
0.142
0.158
0.161
0.077
00666
PHOS-OIS
MG/L P
0.087
0.108
0.107
0.106
0.050
32217
DATE 1IME DEPTH CHLKPHYL
FROM OF A
TO DAY FEET UG/L
72/06/16 18 05 0000 16.2J
72/09/19 09 30 0000 6.4J
72/11/13 12 25 0000 2.6J
J VALUE KNOWN TO BE IN ERROR
-------
STOKE.T RETRIEVAL DATE 75/02/04
262902
42 12 30.0 083 34 30.0
FO*U LAKE
26 MICHIGAN
DATE TIME DEPTH
F«OM OF
TO DAY FEET
72/06/16 18 20 0000
18 20 0015
18 20 OU25
72/09/19 10 00 0000
10 00 0004
10 00 001S
10 00 0025
72/11/13 12 00 0000
12 00 0004
12 00 0015
12 00 0020
00010
rtATEK
TEMP
CENT
22.8
22.7
20.2
22.0
21.9
21.3
7.7
7.7
7.6
00300
DO
MG/L
9.0
9.0
1.0
8.9
H.4
4.2
9.2
8.8
8.6
00077 00094
TRANSP CNOUCTVr
SECCHI FltLO
INCHES MICROMHO
64
bo
36
580
520
515
560
560
555
565
510
520
520
520
11EPALES
4
00400
PH
SU
8.32
8.23
7.58
8.18
8.20
8.18
7.68
8.10
8.10
8.10
8.10
00410
T ALK
CAC03
MG/L
183
182
197
144
143
l<+4
148
194
193
195
195
2111202
0028
00630
N02&N03
N-TOTAL
MG/L
0.280
0.280
0.320
0.370
0.370
0.380
0.340
0.580
0.570
0.570
0.570
FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.300
0.340
0.940
0.230
0.230
0.240
0.720
0.840
0.860
0.900
0.860
00665
PHOS-TOT
MG/L P
0.099
0.094
0.172
0.071
0.072
0.063
0.112
0.110
0.115
0.107
0.116
00666
PHOS-DIS
MG/L P
0.070
0.065
0.136
0.047
0.046
0.040
0.069
0.061
0.060
0.062
0.059
3??17
DATE TIME DEPTH CHLWPriYL
FROM OF A
TO DAY FEET UG/L
72/06/16 18 20 0000 26.5J
72/09/19 10 00 0000 5.0J
72/11/13 12 00 0000 31.7J
J VALUE KNOWN TO BE IN EURO*
-------
APPENDIX D
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORE! RETRIEVAL DATE 75/02/04
2o29A2 LS2629A2
42 It 00.0 063 3b 00.0
HURON RIVER
26 7.5 YPSILANTI E
1/FORU LAKE (RESERVOIR)
SPRING AVE bRDG SE OF' YPSiLANTI
HEPALES 2111204
t 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
73/01/13
73/02/10
73/03/11
73/04/15
73/04/25
73/04/3U
73/05/31
73/Ob/2b
73/07/24
73/08/28
73/09/27
OC630 00625
TIME DEPTH NO:?A,MU3 TOT KJtL
OF N- TOTAL N
DAY FEET
14
14
13
09
12
15
11
11
11
18
18
09
05
40
15
30
15
43
?8
00
30
49
47
32
MG/L
0
0
J
0
0
u
0
0
0
0
0
0
.650
.810
.820
.900
.380
.810
.3tO
.520
.520
.750
.590
.570
MG/L
1.
2.
1.
3.
1.
0.
2.
1.
1.
1.
1.
1.
500
f>00
365
500
100
920
300
BOO
050
380
380
000
00610 00671 00665
IMM3-IM PHOS-OIS PHOb-TOT
TOTAL ORTHO
MG/L
G.
ii •
U.
u •
0.
u .
0 .
0.
a.
0.
0.
u .
680
336
31b
252
240
140
425
178
147
058
100
2aO
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
.025
.027
.025
.031
.015
.013
.Git
.037
.095
.078
.046
.039
MG/L P
0.070
0.060
0.060
0.110
0.045
0.055
0.105
0.067
0.140
0.110
0.090
0.075
-------
STOREY RETRIEVAL 04ft 75/02/04
2rt29A3 LS2629A3
42 15 30.0 083 3fa 30.0
HURON RIVER
26 7.5 ANN ARbOR t
1YFORU LAKE (RESERVOIR)
SUPERIOR KO bRDG iM YPSILANTI UELO STP
11EPALLS 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/11/24
73/02/10
73/03/11
73/04/15
73/04/25
73/04/30
73/05/31
73/06/26
73/OB/28
TIME DEPTH
OF
DAY FEET
13 35
10 15
13 43
OS 30
13 00
15 27
11 14
10 45
11 07
1ft 30
00630
NO?«,N03
N- TOTAL
MG/L
0.3^0
0.940
0.770
U.930
0.360
0.810
0.273
0.<»VO
0.357
'J.357
00625
TOT KJEL
N
MG/L
1.450
1. lOu
i.260
3.300
1.150
l.vjOO
1.38o
3.300
1.320
l.c
-------
STORET RETRIEVAL DATE 75/02/J*
2o29A4 LS2629A4
42 16 30.0 083 40 30.0
HUKOiM RIVER
26 7.b ANN ARBOK E
T/FORD LAKE (RESERVOIR)
01XEBORO bKOG E US 23 ABOV YPSILANTI STP
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/12/16
73/01/13
73/02/10
73/03/11
73/04/15
73/04/25
73/04/30
73/05/31
73/06/26
73/07/24
73/00/28
73/09/27
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
13
14
13
13
09
12
15
11
10
10
18
18
09
25
32
00
32
30
45
20
20
35
52
25
18
15
MG/L
0
1
0
u
o
0
0
J
0
0
0
0
0
.260
.120
.660
.660
.850
.330
.780
.230
.340
.138
.084
.013
.096
MG/L
1.
1.
?.
0.
2.
0.
0.
1.
1.
u.
0.
1.
1.
750
<*00
9<+0
840
700
750
970
000
150
860
84u
470
000
00610 00671 00665
NH3-N PnOS-UIS PHOS-iOT
TOTAL ORMO
M'j/L
0.
0.
0 .
0.
0 .
0.
0.
0.
i).
0 .
0.
0 .
0.
168
150
270
048
700
027
023
o25
126
048
Oil
046
089
HG/L P
0
0
0
0
0
0
0
0
0
0
u
0
0
.020
.024
.021
.013
.015
.006
.011
.005K
.021
.027
.017
.005K
.016
Mb/L P
0.069
0.058
0.050
0.080
0.080
0.025
0.035
0.040
0.050
0.055
0.050
0.060
0.060
K VALUE KNO/VN TO 8E
LE5S THAN INDICATED
-------
STOrtET KETKIEVAL DATE 75/OP/u4
2b29A5 LS2629A5
42 Itt OO'.O 083 45 00.0
HUnON HIvEK
26 (.6 ANN ArtbOK £
T/FOkO LAKE (rtESEKvOIK)
WHITMOrtE LAKE KD dKDG EUGE OF ANN ARbOk
11EPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/12/lb
73/01/13
73/02/10
73/03/11
73/0<*/15
73/0<»/25
73/u<+/30
73/05/31
73/06/26
73/07/24
73/09/28
l/jfc30 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
12
15
12
12
08
12
14
10
10
10
17
17
23
19
25
55
45
10
52
30
08
19
55
38
MG/L
u
I
\j
0
0
•J
0
0
0
J
0
0
.320
.100
.630
.660
.840
.357
,60u
.2^+0
.3JO
. ItO
.2tO
.01 OK
MG/L
1.
2.
0.
0.
3.
0.
1.
0.
1.
0.
1.
1.
UJO
900
950
660
100
H20
05U
760
210
790
200
^UU
U0610 00671 0066b
NH3-N PiiOS-DIS PHOb-TOV
TOTAL ORTHO
MG/L
u .
j •
0.
'j .
i) .
U .
0 .
u •
0.
0.
0.
c.
150
215
490
08o
390
022
026
015
090
05b
026
031
MG/L
a.
a.
0.
0.
0.
0.
0 .
0.
0.
0.
0.
0.
p
U25
019
018
Oil
016
006
009
005K
Olo
020
090
005K
MG/L P
0.056
0.0^2
0.035
0.035
0.040
0.025
0.030
u.035
Oa040
0.055
0.145
0.045
K VALUE KNOWN TO dE
LESS THAN INDICATED
-------
STORET RETRIEVAL OATF. 7b/d2/04
2629A6 LS2629A&
42 20 00.0 083 4b 30.0
HjrtUlM KIVEK
26 7.5 ANN ARdOR wl
f/FOKO LAKE (RESERVOIR)
brG IM OF DELHI BELOw SCIO-WtBSTEK STP
HEPALES 2111204
t 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/11/24
73/01/13
73/02/10
73/03/11
73/04/15
73/OW25
73/04/30
73/05/31
73/07/24
73/08/23
73/0^/27
00630 00625
TIME DEPTH N02oN03 TOT KJEL
OF N- TOTAL N
DAY FEET
09
08
13
15
10
12
1<*
08
0«
17
16
09
CO
50
40
00
45
35
00
41
55
11
56
54
Mo/L
0
0
0
0
J
0
d
0
•J
0
3
0
.234
.H75
.630
.610
.7VO
.350
.870
.252
.420
.085
.110
.150
MG/L
0.
3.
3.
0.
1.
0.
1.
0.
1.
1.
0.
1.
T50
400
000
750
500
750
380
680
600
000
655
()0(J
OU610 OU671 00665
NH3-N PHOS-UlS PHOS-TOT
TOTAL ORTHO
MG/L
iJ".
0.
0.
J.
0 .
0 .
0 .
0.
J.
J.
c.
0.
198
29o
220
073
07<+
060
052
019
320
007
021
058
MG/L
0.
0.
0.
y .
0.
0.
0.
0.
0.
0.
0.
u .
P
048
036
019
014
015
008
Oil
007
023
015
013
023
MG/L P
O.OS8
0.063
U . 0<+0
0.040
0.050
0.035
0.035
0.035
0.060
0.05o
0.055
0.050
-------
STOKET RETRIEVAL DATE 75/02/04
2629A7 LS2629A7
42 19 00.0 ob3 50 30.0
HiJKOiM KWErt
£10 7.5 ANN AKriOK W
T/FOKD LAr\£ (KE5EKVOIH)
ohiUb rtSW DELHI A«OV SCIO-WEbSTER STP
IIEPALES 21H204
«* 0000 FEET DEPTH
DATE
FP.OM
TO
72/10/28
72/11/24
73/01/13
73/02/10
73/03/11
73/0<+/15
73/04/25
73/04/30
73/C5/31
73/06/26
73/07/24
73/08/28
73/09/27
TIME DEPTH ;MO?\N03 TOT KJEL
OF N-TGTAL N
DAY FEET
09
08
13
14
10
13
14
08
09
09
17
17
07
00
55
?0
45
15
00
OH
49
05
09
16
02
47
MG/L
(j
(.
0
a
o
;)
0
0
O
0
0
0
d
.?AJ
.8^5
.600
.590
.750
.357
.850
.240
.410
.160
.154
.126
.160
OiJ'blO U'^o71 OOt)t5D
NH3-N PhOS-DIS PHOS-TOT
TOT
-------
STORE! RETRIEVAL DATE 75/02/U4
2629A8 LS2629A8
42 23 00.U 083 54 30.0
hUROiM RIVER
26 7.5 PINCKNEY
T/FORL) LAKE (RESERVOIR)
N TtKKlTORAL RD 6RDG NEAR HUDSON MILLS
11EPALES 211120^
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/11/24
72/12/16
73/01/13
73/02/10
73/03/11
73/04/15
73/04/25
73/04/30
73/05/31
73/06/26
73/07/24
73/08/28
73/09/27
00630 00625
TI^E DEPTH N02MM03 TOT KJEL
OF N-TOTAL N
DAY FEET
10
09
14
13
14
11
13
14
10
09
09
17
17
07
15
20
24
10
30
00
15
31
07
50
52
36
22
30
MG/L
U
0
0
J
0
0
0
0
J
0
j
0
0
0
.045
. 16d
.210
.460
.420
.378
.231
.380
,03<+
.105
.030
.126
.Glo
.030
MG/L
1.
1.
1.
1.
0.
1.
1.
?..
0.
1.
0.
0.
0.
0.
H5u
^00
000
es90
750
b«G
150
<+CO
94U
boo
8?0
v2G
61C
840
00610 00671 00665
NN3-N PHOS-OIS PHOS-IOT
TOTAL ORTHO
M'3/L
u.
j.
0.
0 .
0.
0.
0.
0 .
o .
0.
a.
u.
0 .
0.
300
220
140
18o
039
092
u27
054
Oil
066
033
020
046
028
MG/L
0.
0.
0.
0.
0.
0.
0 .
J.
0.
0.
0.
0.
0.
0 .
p
068
040
023
015
006
007
005
005K
005K
OOri
007
019
005K
010
MG/L P
u.l 20
0.061
0.044
0.030
0.030
U.o3b
u.030
0.03o
0.040
0.02u
0.025
0.055
0.020
0.030
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/02/J4
2fc>2981 LS2629B1
*2 Ib 00.0 083 40 30.0
bjvlFT LiRAlN
26 7.3 ANN ARBOR E
T/FORO LAr\E (RtSERVOiR)
AING N£ HURON RIVER DRIVE rtUS 23
HuPALES 2111204
•+ 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/11/24
72/12/16
73/01/13
73/02/10
73/03/11
73/04/25
73/04/30
73/05/31
7 J/07/2t
73/08/28
73/09/27
CO 630
TIrtE DEPTH N024.N03 1
OF N- TOTAL
DAY FEET
13
12
14
12
13
09
15
10
1 3
!>}
09
10
00
41
50
?7
15
14
<+9
16
12
10
i-IG/L
0
1
3
1
1
v)
u
ij
0
0
0
v
.^20
.520
.600
.2bO
.5«0
.480
.500
.3 7v
.2^'j
• O'tti
. 2'3U
.126
00625
POT rCJEL
N
MG/L
1
p
2
3
0
4
1
u
p
1
p
C
.900
.400
,?5C
.900
.H<+0
.600
. 150
. 9HO
. ?oc
. 0 0 v
.300
.44U
00610 00671 006b5
!JHj-N KHOS-OIS PHOb-TOT
TOTAL oRTHO
M.G./L
0
J
0
I*
J
0
0
0
u
u
0
0
.150
.070
.205
.280
.027
.357
.u27
.022
.I6ri
. 1 1^
.094
.073
MG/L P
3
0
0
u
0
0
u
u
0
0
C
u
.017
.OOB
.015
.006
.007
.036
.009
• 005K,
.u32
.009
.017
.01H
MG/L P
0.120
0.032
0.055
0.040
0.035
0.055
0.035
0.090
U.025
0.045
u.035
K VALUE KNOWN TO BE
LESS THAN
-------
STORET RETRIEVAL DATE 75/02/04
2e>29Cl LS2629C1
42 IB 30.0 083 4B 30.0
HONEY CREEK
dd 7.5 ANN ARdOR wf
IYFORO LAKE (RESERVOIR)
MILLEK RO XING 2 MI Nirt ANN ARBOR
HEPALES 2111204
<* 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/11/2*
72/12/16
73/01/13
73/02/10
73/04/15
73/04/30
73/05/31
73/06/26
73/07/24
73/08/28
73/09/27
00630 006?5
TIME DEPTH N02NN03 TOT KJtL
OF N-TOTAL N
DAY FEET
08
08
12
13
15
12
06
08
08
17
16
08
30
40
20
50
30
15
37
50
45
02
47
00
MG/L
0
y
1
I
1
•J
J
0
.)
0
y
j
.600
.3SU
.820
.360
.220
.840
.780
,46'J
.630
.35?
,ht>J
.960
MG/L
0 .
<+.
1.
2.
0 .
0.
0.
1.
0.
0.
1.
0.
350
700
2Uu
S20
780
870
840
150
630
89J
100
32J
00610 00671 00665
NM3-N PriOS-OIS PHOi-TOT
TOTAL UKTHO
MG/L
0.
u .
•J.
0 .
0.
u .
j .
0 .
u .
0.
0.
0.
120
198
ObU
16«
048
044
023
043
u29
044
040
027
MG/L
0.
0 .
0.
0 .
0 .
0 .
J.
0.
0.
0.
0.
0.
H
007
00 /
(jQf
OObK
OOSK
OOb
005K
015
008
023
005K
u08
MG/L P
0.025
0 . 02 1
0.028
0.015
0.020
0.020
O.u2o
0.040
0.035
0.045
0.030
0.025
K VALUE KNOWN TO BE
LESS THAN IiMOICATEO
-------
UATE 7b/02/04
2^2901 LS2b29Dl
42 £0 00.0 OBJ 53 00.0
MILL CrtEE*
db 7.5 DtATEK
T/KJKL) LAKE (rtESEWvOIrt)
iSLANO LK bKDG NW DEXTER ABOVE STH
11EPALE5 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/2R
72/1 l/2<»
72/12/lb
73/01/13
73/02/10
73/03/11
73/04/15
73/04/25
73/04/30
73/05/31
73/06/26
73/07/24
73/08/28
73/09/27
TIME DEPT-
OF
JAl
10
09
12
13
14
11
13
14
09
Ow
09
17
17
07
r FEET
00
05
30
00
15
30
30
14
50
37
42
27
10
27
00630 0062:>
1 N02C.NOJ TOf KJEL
A- TOTAL N
MG/L
0
3
3
1
1
1
I
2
\j
j
0
y
0
0
.W50
.3cC
. l4u
.9<+y
.7^0
.960
.020
• 0 0 0
• ri r 0
.880
.530
.73o
.540
.720
MG/L
1.
3.
2? •
i.
0 .
2.
(i .
1.
0.
3.
1.
1.
0.
0.
200
OOu
10J
900
905
•tOU
9oO
200
*4J
100
050
4t?0
640
= 80
uObLO
TOTAL
M(i/L
u
u
i>
0
li
J
,)
0
0
tf
.0
0
0
i;
.189
.325
.169
.3oO
.154
.120
.048
.0'+2
.u49
. 12b
.063
.040
.044
.u75
00 b 1 \
^05-1)15 >
OR TriO
MG/L P
0
0
0
0
0
0
0
0
u
0
0
0
0
0
.046
.035
.029
.027
.026
.03b
.02r>
.016
.0 16
.031
.025
.016
.024
.026
OC6t>S
'HOS-TOT
MG/L P
0. 105
0.082
0.0/2
0.070
0.065
0.085
0.070
0 .05u
0 .060
0.082
0.095
0.025
0.0/5
O.ObO
-------
STORE! RETRIEVAL DATE 75/02/04
262VE1 LS262SIE1
42 17 30.0 083 44 00.0
UNNAMED STREAM
26 7.5 AiMN ARdOR £
r/FORO LAKE (RESERVOIR)
dRUADvtAY ST BRUG N RIVERVIE* PARK
HEPALES 2111204
4 0000 FEET DEPTH
DATE
FROM
TO
72/10/28
72/11/24
73/03/11
73/0^/25
73/04/30
73/05/31
73/06/26
73/07/24
73/08/28
73/09/27
00630 00b25
THE DEPTH N02M\I03 TOT KJtL
OF K'-TOTAL M
DAr FEET
12
09
08
15
10
10
10
18
17
08
15
50
55
00
36
15
30
04
46
30
MG/L
0
1
0
0
{.,
0
o
0
0
0
.270
.020
.600
.750
.240
• 3?0
.168
.530
.01 7
.130
MG/L
1.
2.
3.
1.
0 •
1.
0 .
0.
1.
0 .
100
uOO
200
100
8*0
i'OO
78o
92o
200
680
00610 00671 00665
IMH3-N PrtOS-Dlb PhOS-fOT
TOTAL ORTrlO
MG/L
,j
0
U
0
0
•J
0
0
(J
J
.120
. 1 09
.535
.024
.032
.094
.U4H
.035
.04^
.075
MG/L
0.
0.
0.
0.
0 .
0.
0.
0.
0 .
0 .
p
022
036
022
007
005K
020
025
025
012
013
MG/L P
0.058
0.0h3
U. 120
0.030
0.0*5
0.045
0 .o60
0.060
0.080
o .0*5
K VALUE KNOwiN TO b£
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/02/04
262950 P0262950 P100000
42 17 30.0 083 44 30.0
ANN ARBOR
26 7.5 ANN ARBOR E.
T/FOKu-BELLEVILLE LAKES
HURON RIVER
11EPALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/01/30
CP(T)-
73/01/31
73/02/08
CPU1-
73/02/08
73/03/28
CP(T)-
73/03/29
73/04/19
CP(T>-
73/04/19
73/05/26
CP(T>-
73/05/26
73/06/29
CP(T)-
73/06/29
73/07/31
CP(T)-
73/07/31
73/08/29
CP(T)-
73/08/29
73/10/11
CP(T)-
73/10/11
73/11/02
CP(T>-
73/11/02
73/11/27
CP(T)-
73/11/27
74/01/08
CP(T>-
00630
TIME DEPTH N02S.N03
OF N-TOTAL
DAY FEET MG/L
00
24
00
24
00
24
UO
24
00
24
UO
24
00
24
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
5
4
1
0
8
3
6
.700
.800
.300
.685
.200
.200
.400
5.300
24
00
24
00
24
00
24
00
00
00
00
00
00
00
00
00
2
1
2
7
.730
.540
.000
.900
00625
TOT KJEL
N
MG/L
13
11
13
18
4
9
4
6
16
19
20
7
.000
.500
.800
.750
.300
.200
.200
.800
.000
.000
.000
.100
00610 00671 00665 50051
NH3-N PHOS-OIS PHOS-TOT FLOW CONDUIT
TUTAL ORTHO RATE FLOW-MOD
MG/L MG/L P MG/L P INST MGD MONTHLY
3.700 0.330
1.380
1.860 0.220
a.000
1.470 16.300 17.000
4.620 0.170 0.875 16.100 16.300
4.600 0.175 0.760 18.000 18.900
7.650 0.240 0.970 16.400 16.800
1.370 0.230 0.270 15.900 16.500
0.320 1.300 17.000 16.500
0.140 0.530 1.050 13.400 15.800
15.700 15.500
8.700 0.240 0.870 15.300 15.200
0.245 1.700 15.000 15.000
3.780 0.530 4.200 17.100 16.400
2.760 0.410 0.990 15.500 16.800
-------
STORET RETRIEVAL DATE 75/02/04
00630
DATE TIME DEPTH NOHt,N03
FROM OF N-TOTAL
TO DAY FEET MG/L
74/01/29 3.900
262950 P0262950 P100000
42 17 30.0 083 44 30.0
AiMN ARBOR
26 7.5 ANN ARdOR E.
T/FORD-bELLEVILLt LAKtS
HJROixi RIVER
HEPALES 2141204
4 0000 FEET DEPTH
00625
TO 1 KJEL
N
MG/L
12.000
00610
NH3-N
TOTAL
MG/L
0.170
00671
PHOS-DIS
ORTHO
MG/L P
0.200
00665
PHOS-TOT
MG/L P
0.720
50051
FLO*
RATE
INST MGD
19. tOO
50053
CONDUIT
FLOW-MOD
MONTHLY
17.500
-------
STORE! RETRIEVAL DATE 75/02/04
262951 PR262951 P001700
42 20 30.0 083 53 30.0
UEXTER
26 7.5 DEXTER
T/FORO-BELLEVILLE LAKES
HURON RIVER
11EPALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/01/30
73/02/22
73/03/30
73/04/30
73/05/31
CP(T)-
73/05/31
73/06/29
73/07/31
73/OB/30
73/09/27
73/10/31
73/11/29
0063U
TIME OEPTri N02fc,N03
OF N- TOTAL
DAY FEET
15
11
15
15
08
16
1?
15
15
14
13
15
00
00
00
00
00
00
DO
00
30
30
00
00
MG/L
*
\j
2
1
0
0
0
0
0
0
0
.2oO
.900
.100
.3B7
.405
.670
. 1 30
.4bO
.300
.300
00625
TOT KJEL
N
MG/L
45.000
39.000
28.000
•+6. 000
36.000
24.000
22.000
22.000
3n.OOO
52.000
37.000
00610 00b71
NH3-N PhOb-DIS
TOTAL ORTriO
MG/L
25.
13.
9.
25.
15.
4.
9.
b.
10.
30.
13.
ooo
200
500
900
700
200
HOO
400
000
COO
000
MG/L P
4.600
3.600
2.600
3.750
4.830
2.900
5.200
3.860
2.52o
5.900
3.150
00665
PHOS-TOF
50051 50053
FLO* CONUUIT
RATE FLOU/-MGU
MG/L P INST MGD MONTHLY
13.000
tt.OOO
8.000
ll.OOU
11.000
8.700
7.<+00
b.920
8.800
16.500
9.000
0.140
0.150
O.loO
0.175
o. 1BO
0.200
0.200
0.160
0.200
0.170
0.200
0.140
0.160
0.200
0.800
0.180
0.200
0.190
0.165
0.200
0.170
0.175
-------
KET-dEVAL UATE 75/02/04
262952 TF262952 P000500
<+2 IS* 30.0 Od3 50 30.0
bCIU-dEelbTER
26 7.5 ANN ARdOR W.
1/FOKD-clELLEVlLLE LAKES
I-IUKON KIVEX
11EPALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/01/1^
CP(T>-
73/01/lt>
73/02/20
CP ( T> -
73/02/2U
73/03/26
CP(T)-
73/o3/2b
73/04/27
CP( M-
73/04/27
73/05/26
CP(T>-
73/ub/2o
73/07/30
CP(T>-
73/u7/30
73/08/28
CP(T)-
73/08/26
73/11/12
CP(D-
73/11/12
73/12/26
CPIT1-
73/12/26
74/01/29
CP( H-
74/0 1/29
7«/02/ 1 9
CPU1-
74/u2/19
74/U3/ !•*
CP (T) -
00b3u
TIME OEPTri 'MU2&N03
OK
UAY
08
16
09
16
08
16
08
16
08
16
Od
16
08
16
08
lo
08
ib
Od
16
U8
ItD
08
FEET
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
N-TOTAL
MI3/L
1.000
0.910
1 . IbO
1.100
2.600
3.000
3. luO
1 . 8 'J u
1 . ioO
1.040
0.7r>0
1 . fauG
00625
TUT KJEL
N
M6/L
13.600
16.800
9.10U
11.500
14.700
10.500
12.200
16.^00
1 3 . 5 U 0
10.000
12.000
7 . o 0 0
Ojblu 00671 00665 50051 S0053
NM3-N PhOS-tJiS PriOb-TOT KLOrt CONUUIT
TuTAL OKfHd KATE FLOW-MG0
M(j/L MG/L P MG/L P INST MGL) MONTHLY
1.95U
.600
b./OO
1.90C .3.^00 H.600
0.140 2.16u 3.600
1.980 3.480 4.800
,.05u 1.750 3.200
0.071 0.088
0.071 0.070
0.470 2.«00 4.350 0.120
0.094
0.270 3.000 4.700 0.078 0.090
1.680 4.400 5.750 0.070 0.085
2.600 5.225 0.084 0.076
1.410 4.OnO 5.100 0.065 0.071
4.300 2.200 7.200 0.047 0.053
0.086 0.079
0.084 0.076
0.093 0.085
O.lt6 0.125
16 Oo
-------
STORET RETRIEVAL UATt 7S/02/U4
262952 TF262952
<*a Is* 30.0 083 SO 30.0
bClU-wt«STtni
26 7.5 ANN ARBOR W.
T/FUKU-dELLEVlLLc LAKES
P000500
lliLPALtb
0000 FEET DEPTH
DATE
FROM
TO
74/u^»/04
CP(T)-
74/0^/0'+
TIME DtHfri
OF
DAY FEET
Od 00
Ib 00
00630
N026.N03
N-TOTAL
MG/L
1.2-+0
0062S
TOT KJEL
N
MG/L
^•.600
UubJO
Nnj-N
TOTAL
i-IG/L
0.100
00671
PriOS-OIS
ORTHO
MG/L P
1.300
OObbD
PHOS-TOT
MG/L P
2.<+Oo
bOOSl
FLOrt
KATE
INSF MC30
o.iby
50053
CONDUIT
FLOW-MGU
MONTHLY
u. 150
-------
STO.-fET
OA1E 75/C2/J4
UAft
FROM
TO
73/01/ 11
CP(T)-
73/01/12
73/02/06
CP(T)-
73/02/07
73/03/Od
CP(T)-
73/03/Od
73/J4/12
CP(T)-
73/04/12
73/05/09
CP(T)-
73/05/10
73/06/12
CP(T>-
73/06/12
73/07/10
CtMTl-
73/07/U
73/Ott/U
CP(T)-
73/0^/11
7J/UV/12
CP(T)-
7J/09/13
7J/ lu/Od
CP(T)-
73/ lu/09
73/11/06
CP(T)-
7J/1 1/07
73/12/05
CP(T>-
73/12/06
TIME DEPTH
OF
JAY FEET
00 00
24 00
24 00
24 00
12 00
12 00
12 00
24 00
,12 00
12 00
12 00
24 00
24 00
24 00
2<+ 00
24 00
2t 00
24 00
24 00
2<» 00
24 00
24 00
24 00
24 00
00630
U02NN03
,^-TOTAL
MG/L
0.120
0.040
u .055
0.17U
J.045
0. 1^0
O.Ovu
0.23U
0.01 J
0.120
U . 1 JO
U.29U
00625
TUT KJEL
N
Mb/L
1.1SO
6.600
6 . J u 'J
7.200
3.dOO
6.300
6.SOO
y.^oi)
9. sou
13. 0 JO
10.000
3.30C
262953 AS262953 P021000
42 14 00.0 Oe)3 36 00.0
YPSlLAiNU
<;6 Y.b YPSILANTI £.
T/FOKU-BELLLVILLt. LAKES
FUKO LAKE
11EPALES 2141204
4 0000 FEET DEPTH
•Ju610 00671 Ou665 50051 50053
NH3-N PrlOS-OIS PHOS-TOT KLOw CONDUIT
TOTAL UKTMO HATE FLOW-MGO
MO/L MG/L P Mt>/L P 1NST MbD MONTHLY
0.3bO
?.200
O.BtO
0. 1 i\i
<».300
3.100 1.400
1.600 U.720
1.600
1.000 3.600
7.660 7.430
b.100 6.600
0.720 3.400 J.60U 7.300
3.750 7.220
J.190 l.SOO 1.600 7.050
2.bOU 1.200 2.600 7.6BO
J.100 2.000 2.300 7.050
7.050
7.000
7.090
7.000
1.680 2.100 7.620 6.940
7.blO
6.800
1.560 2.700 7.550 6.690
7.620 7.520
5.5UJ 6.400 6./00 7.450
6.970
------- |