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USGS - science for a changing world

Scientific Investigations Report 2007-5084

In cooperation with the Milwaukee Metropolitan Sewerage District

Water-Quality Characteristics for Selected Sites within the Milwaukee Metropolitan Sewerage District Planning Area, Wisconsin, February 2004–September 2005

By Judith C. Thomas, Michelle A. Lutz, Jennifer L. Bruce, David J. Graczyk, Kevin D. Richards, David P. Krabbenhoft, Stephen M. Westenbroek, Barbara C. Scudder, Daniel J. Sullivan, and Amanda H. Bell

This report is available for download as a PDF (15,526 KB).


Appendixes

Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram; PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Chloride
Total nitrogen
Subwatersheds
Site name
Site
number
Site
abbreviation
Phase I2
(mg/L)
Phase II2
(mg/L)
Percent
difference
Phase I2
(mg/L)
Phase II2
(mg/L)
Percent
difference
Fox River Watershed
Muskego Lake Jewel Creek at Muskego 05544371
JCM
--
136
--
1.27
1.26
-1
Kinnickinnic River Watershed
Kinnickinnic River Kinnickinnic River at S. 11th Street at Milwaukee 04087159
KRM
54
210
289
1.39
1.14
-18
Menomonee River Watershed
Honey Creek Honey Creek at Wauwatosa 04087119
HCW
--
260
--
.33
1.28
288
Little Menomonee River Little Menomonee River at Milwaukee 04087070
LMM
--
104
--
3.32
1.43
-57
Lower Menomonee River Menomonee River at Wauwatosa 04087120
MRW
75
175
133
1.58
1.17
-26
Upper Menomonee River Menomonee River at Menomonee Falls 04087030
MRMF
90
138
53
1.56
1.04
-33
Underwood Creek Underwood Creek at Wauwatosa 04087088
UCW
--
295
--
--
1.17
--
Willow Creek Willow Creek at Maple Road near Germantown 040870195
WCG
50
107
114
1.85
1.38
-25
Milwaukee River Watershed
Lincoln Creek Lincoln Creek at 47th Street at Milwaukee 040869415
LCM
104
246
137
1.24
.98
-21
Lower Milwaukee River1 Milwaukee River near Cedarburg1 04086600
MRC1
42
75.9
81
1.68
2.14
27
Milwaukee River at Milwaukee1 04087000
MRM1
91.9
119
1.89
13
Milwaukee River at Mouth at Milwaukee1 04087170
MRJ1
54.9
31
1.22
-27
Oak Creek Watershed
Lower Oak Creek Oak Creek at South Milwaukee 04087204
OCSM
135
208
54
1.2
1.24
3
Root River Watershed
Middle Root River Root River near Franklin 04087220
RRF
135
144
7
1.19
1.28
8
Upper Root River Root River at Grange Avenue at Greenfield 04087214
RRG
190
246
29
1.44
1.34
-7

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

2 Values given as median concentrations.


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Nitrate
Total phosphorus
Subwatersheds
Site
abbreviation
Phase I2
(mg/L)
Phase II2
(mg/L)
Percent
difference
Phase I2
(mg/L)
Phase II2
(mg/L)
Percent
difference
Fox River Watershed
Muskego Lake
JCM
0.1
0.835
735
0.075
0.062
-17
Kinnickinnic River Watershed
Kinnickinnic River
KRM
.47
.460
-2
.07
0.148
111
Menomonee River Watershed
Honey Creek
HCW
.17
.605
256
.04
.15
275
Little Menomonee River
LMM
.01
.545
5,350
.01
.152
1,420
Lower Menomonee River
MRW
.52
.560
8
.1
.113
13
Upper Menomonee River
MRMF
.64
.370
-42
.09
.1
11
Underwood Creek
UCW
RL
.410
--
--
.085
--
Willow Creek
WCG
.78
.860
10
.067
.068
1
Milwaukee River Watershed
Lincoln Creek
LCM
.45
.265
-41
.1
.163
63
Lower Milwaukee River1
MRC1
.59
 
1.40
137
.1
 
.120
20
MRM1
1.17
98
.133
33
MRJ1
.610
3
.061
-39
Oak Creek Watershed
Lower Oak Creek
OCSM
.47
.500
6
.06
.079
32
Root River Watershed
Middle Root River
RRF
.14
.545
289
.061
.092
51
Upper Root River
RRG
.47
.525
12
.1
.113
13

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

2 Values given as median concentrations.

return to top


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Chlorophyll a
Suspended sediment
Fecal coliform
Subwatersheds
Site
abbreviation
Phase I2
(mg/m3)
Phase II2
(mg/m3)
Percent
difference
Phase I2
(mg/L)
Phase II2
(mg/L)
Percent
difference
Phase I2
(CFU/100mL)
Phase II2
(CFU/100mL)
Percent
difference
Fox River Watershed
Muskego Lake
JCM
--
10.3
--
39
28
-28
RL
165
--
Kinnickinnic River Watershed
Kinnickinnic River
KRM
4.62
5.06
10
356
12
-97
930
610
-34
Menomonee River Watershed
Honey Creek
HCW
--
6.76
--
193
10
-95
16,650
1,900
-89
Little Menomonee River
LMM
--
5.96
--
178
26
-85
--
620
--
Lower Menomonee River
MRW
5.99
7.8
30
127
14
-89
2,300
575
-75
Upper Menomonee River
MRMF
5.67
8.45
49
40
10
-75
430
305
-29
Underwood Creek
UCW
--
5.34
--
234
6.5
-97
20,000
660
-97
Willow Creek
WCG
--
2.66
--
--
18
--
--
695
--
Milwaukee River Watershed
Lincoln Creek
LCM
5.07
4.66
-8
25
5.5
-78
1,500
575
-62
Lower Milwaukee River1
MRC1
11.7
 
13.4
15
28
 
11
-61
460
 
130
-72
MRM1
10.2
-13
15
-46
170
-63
MRJ1
5.77
-51
4
-86
55
-88
Oak Creek Watershed
Lower Oak Creek
OCSM
3.74
3.52
-6
58
18
-69
750
505
-33
Root River Watershed
Middle Root River
RRF
7.17
4.7
-34
62
22
-65
230
240
4
Upper Root River
RRG
1.46
1.34
-8
204
14
-93
750
610
-19

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

2 Values given as median concentrations.


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Escherichia coli
Arsenic in sediment3
(mg/kg)
Cadmium in sediment3
(mg/kg)
Subwatersheds
Site
abbreviation
Phase I2
(CFU/100mL)
Phase II2
(MPN/100mL)
Percent
difference
Phase I2
Phase II2
Phase I2
Phase II2
Fox River Watershed
Muskego Lake
JCM
RL
185
--
--
10
0.4
RL
Kinnickinnic River Watershed
Kinnickinnic River
KRM
780
995
28
6.1
8.5
4.4
0.6
Menomonee River Watershed
Honey Creek
HCW
2,400
2,000
-17
--
5.0
--
.7
Little Menomonee River
LMM
--
820
--
6
12.0
4
.9
Lower Menomonee River
MRW
915
725
-21
7
RL
3.9
1.1
Upper Menomonee River
MRMF
300
355
18
4
6.0
2
1.0
Underwood Creek
UCW
--
805
--
--
6.0
--
RL
Willow Creek
WCG
--
750
--
--
7.5
--
.9
Milwaukee River Watershed
Lincoln Creek
LCM
1,300
840
-35
4
5.0
2
.8
Lower Milwaukee River1
MRC1
220
43.5
-80
5.1
6.0
3
1.0
MRM1
215
-2
5.5
.7
MRJ1
56.5
-74
12
3.5
Oak Creek Watershed
Lower Oak Creek
OCSM
-- 565 -- -- 5.0
--
RL
Root River Watershed
Middle Root River
RRF
--
225
--
2
9
1
1.5
Upper Root River
RRG
--
770
--
--
8
--
1.4

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

2 Values given as median concentrations.

3 Phase I concentrations were originally published in micrograms per gram, which is equivalent to milligrams per kilogram.

return to top


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Chromium in sediment3
(mg/kg)
Copper in sediment3
(mg/kg)
Lead in sediment3
(mg/kg)
Mercury in sediment3
(mg/kg)
Subwatersheds
Site
abbreviation
Phase I2
Phase II2
Phase I2
Phase II2
Phase I2
Phase II2
Phase I2
Phase II2
Fox River Watershed
Muskego Lake
JCM
--
15
--
27
6.5
19
--
0.06
Kinnickinnic River Watershed
Kinnickinnic River
KRM
330
23
74.5
82
271
54
0.2
.52
Menomonee River Watershed
Honey Creek
HCW
--
29
--
57
4,100
39
--
.04
Little Menomonee River
LMM
70
19
140
38
260
38
.2
.07
Lower Menomonee River
MRW
162
8.1
140
9.0
225
44
.46
.03
Upper Menomonee River
MRMF
30
15
37
17
45
32
.12
.04
Underwood Creek
UCW
--
24
--
29
--
120
--
.03
Willow Creek
WCG
--
11
--
20
--
13
--
.06
Milwaukee River Watershed
Lincoln Creek
LCM
20
17
39
36
80
28
.07
.06
Lower Milwaukee River1
MRC1
117
 
9.3
69
 
13
150
 
13
.27
 
.08
MRM1
16
17
43
.04
MRJ1
94
73
89
.29
Oak Creek Watershed
Lower Oak Creek
OCSM
--
12
--
15
--
12
--
.02
Root River Watershed
Middle Root River
RRF
8
12
--
15
30
10
.02
.05
Upper Root River
RRG
--
13
--
24
--
25
--
.04

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

2 Values given as median concentrations.

3 Phase I concentrations were originally published in micrograms per gram, which is equivalent to milligrams per kilogram.


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Nickel in sediment3
(mg/kg)
Zinc in sediment3
(mg/kg)
Phase I PCBs in sediment
Phase II
total PCBs
in sediment2
(mg/kg)
Subwatersheds
Site
abbreviation
Phase I2
Phase II2
Phase I2
Phase II2
Total
number
of results
Number
of results
below RL
Number of results at
or above RL
Percent of results at
or above RL
Fox River Watershed
Muskego Lake
JCM
--
18
--
95
--
--
--
--
0.02
Kinnickinnic River Watershed
Kinnickinnic River
KRM
30
18
540
430
1,705
77
1,628
95
--
Menomonee River Watershed
Honey Creek
HCW
--
10
--
180
--
--
--
--
.04
Little Menomonee River
LMM
40
16
540
190
1
1
0
0
.06
Lower Menomonee River
MRW
29
6.0
503
39
179
104
75
42
.12
Upper Menomonee River
MRMF
20
10
140
78
6
4
2
33
.02
Underwood Creek
UCW
--
10
--
150
--
--
--
--
.04
Willow Creek
WCG
--
11
--
76
--
--
--
--
.03
Milwaukee River Watershed
Lincoln Creek
LCM
30
10
160
150
12
6
6
50
.03
Lower Milwaukee River1
MRC1
23
7
318
53
2,968
204
2,764
93
.28
MRM1
9
 
92
1.0
MRJ1
20
 
260
1.1
Oak Creek Watershed
Lower Oak Creek
OCSM
--
6.0
--
42
--
--
--
--
.03
Root River Watershed
Middle Root River
RRF
--
14
52
54
--
--
--
--
RL
Upper Root River
RRG
--
9
--
87
--
--
--
--
.05

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

2 Values given as median concentrations.

3 Phase I concentrations were originally published in micrograms per gram, which is equivalent to milligrams per kilogram.

return to top


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Phase I pesticides in tissues
Phase II pesticides
detected in tissues
Subwatersheds
Site
abbreviation
Total
number
of results
Number
of results
below RL
Number of results at
or above RL
Percent of results at
or above RL
Fox River Watershed
Muskego Lake
JCM
--
--
--
--
--
Kinnickinnic River Watershed
Kinnickinnic River
KRM
111
111
0
0
--
Menomonee River Watershed
Honey Creek
HCW
8
8
0
0
--
Little Menomonee River
LMM
7
7
0
0
--
Lower Menomonee River
MRW
32
32
0
0
p-p’-DDE and p-p’-DDD
Upper Menomonee River
MRMF
--
--
--
--
--
Underwood Creek
UCW
--
--
--
--
--
Willow Creek
WCG
--
--
--
--
--
Milwaukee River Watershed
Lincoln Creek
LCM
63
63
0
0
--
Lower Milwaukee River1
MRC1
296
292
4
1
--
MRM1
p-p’-DDE
MRJ1
--
Oak Creek Watershed
Lower Oak Creek
OCSM
28
28
0
0
--
Root River Watershed
Middle Root River
RRF
6
6
0
0
no pesticides detected
Upper Root River
RRG
--
--
--
--
--

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Phase I PCBs in tissues
Phase II pesticides
detected in tissues
Fish species abundance
Phase I4
Phase II4
Subwatersheds
Site
abbreviation
Total
number
of results
Number
of results
below RL
Number of results at
or above RL
Percent of results at
or above RL
1970–1979
1980–1989
1990-2002
2004
Fox River Watershed
Muskego Lake
JCM
--
--
--
--
--
37
--
--
15
Kinnickinnic River Watershed
Kinnickinnic River
KRM
1
1
0
0
--
12
6
13
1
Menomonee River Watershed
Honey Creek
HCW
--
--
--
--
--
5
14
13
6
Little Menomonee River
LMM
7
7
0
0
--
8
12
--
4
Lower Menomonee River
MRW
5
5
0
0
Aroclor 1260
13
18
26
3
Upper Menomonee River
MRMF
2
2
0
0
--
19
26
--
13
Underwood Creek
UCW
--
--
--
--
--
4
12
11
8
Willow Creek
WCG
--
--
--
--
--
12
12
--
6
Milwaukee River Watershed
Lincoln Creek
LCM
4
0
4
100
--
13
23
8
8
Lower Milwaukee River1
MRC1
15
1
14
93
--
40
 
49
 
54
 
22
MRM1
Aroclor 1248/
1254/1260
18
MRJ1
--
--
Oak Creek Watershed
Lower Oak Creek
OCSM
1
1
0
0
--
7
9
10
7
Root River Watershed
Middle Root River
RRF
1
1
0
0
no PCBs detected
24
13
5
12
Upper Root River
RRG
--
--
--
--
--
6
--
--
9

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

4 Values given as total number of fish species.


Appendix 5. Comparison of median constituent concentrations and detections between Phase I and Phase II of the MMSD Corridor Study—Continued.

[mg/L, milligram per liter; mg/m3, milligram per cubic meter; CFU/100ml, colony-forming unit per 100 milliliters; µg/g, microgram per gram;  mg/kg, milligram per kilogram;  PCB, polychlorinated biphenyl; EPT, Ephemeroptera, Plecoptera, and Trichoptera; HBI, Hilsenhoff Biotic Index;  µg/L, microgram per liter; --, no data; RL, concentrations were  below reporting limit; *, fewer than 50 individual fish were collected, so the Wisconsin  warmwater Index of Biotic Integrity should not be used (Lyons, 1992)]

Phase I
Phase II
Fish Index of Biotic Integrity
Macroinvertebrate EPT
(percent of EPT taxa)
Macroinvertebrate HBI
Subwatersheds
Site
abbreviation
Phase I5
Phase II5
Phase I6
Phase II6
Phase I7
Phase II7
Fox River Watershed
Muskego River
JCM
--
22
26
29
5.8
5.58
Kinnickinnic River Watershed
Kinnickinnic River
KRM
20
*
0
7
6.11
6.52
Menomonee River Watershed
Honey Creek
HCW
20
7
17
17
6.15
5.28
Little Menomonee River
LMM
--
*
0
23
8
5.33
Lower Menomonee River
MRW
15
12
8
31
6.21
5.86
Upper Menomonee River
MRMF
--
30
28
44
5.68
5.56
Underwood Creek
UCW
15
10
2
18
6.1
5.96
Willow Creek
WCG
--
25
12
17
4.87
5.45
Milwaukee River Watershed
Lincoln Creek
LCM
10
*
0
18
6.2
6.3
Lower Milwaukee River1
MRC1
62
 
70
19
 
51
5.72
   
5.01
MRM1
60
39
5.2
MRJ1
--
--
--
Oak Creek Watershed
Lower Oak Creek
OCSM
17
10
24
22
6.64
5.55
Root River Watershed
Middle Root River
RRF
--
14
50
28
6.29
5.92
Upper Root River
RRG
--
12
3
18
7.13
6.15

1 Three of the Phase II sites sampled were in the Lower Milwaukee River Subwatershed. Comparisons could be drawn individually between each site and the Phase I subwatershed; however, for the discussion in the text, these three sites were not considered adequately representative of that subwatershed due to their location and the size and complexity of the subwatershed. Comparisons of these sites to the subwatershed were omitted when discussing overall trends between Phase I and Phase II data in the text; however, contamination of this subwatershed with synthetic organic contaminants (especially PCBs) was well documented and was discussed in general terms using the data from the Milwaukee River at Milwaukee site.

5 Phase I values given as median IBI scores for 1990–2002. Phase II IBI scores were determined from a single community survey.

6 Phase I values given as median percentages of EPT taxa. Phase II percentages of EPT taxa were determined from a single community survey.

7 Phase I values given as median HBI values. Phase II HBI-10 values were determined from a single community survey.


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continue to Appendix 6. Hydrologic conditions during Phase II of the Milwaukee Metropolitan Sewerage District (MMSD) Corridor Study.

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