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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).


Results from Manually and Automatically Collected Samples

Data for more than 220 properties and constituents were collected during Phase II of the MMSD Corridor Study (appendix 3) (Waschbusch and others, 2005, 2006).

Results from field measurements (pH, specific conductance, dissolved oxygen, and temperature), major inorganics, and alkalinity gave a general description of area water quality, but did not indicate any unusual water-quality patterns that required further discussion or interpretation; a summary of results for these properties and constituents is given in table 10. Constituents of interest are detailed in the following discussions.


Table 10. Median results for field measurements, major inorganics, and alkalinity that did not indicate any unusual water-quality patterns. Results are summarized for 15 stream sites and 6 harbor Phase II sites in the Milwaukee Metropolitan Sewerage District planning area, Wis.

[mg/L, milligram per liter; µg/L, microgram per liter; µS/cm, microsiemen per centimeter]

Property or constituent name
Unit
Stream
median value
Harbor
median value
Alkalinity, water, filtered, fixed endpoint (pH 4.5) titration, laboratory
mg/L as calcium carbonate
176
114
Alkalinity, water, filtered, incremental titration, field
mg/L as calcium carbonate
169
110
Calcium, water, filtered
mg/L
61.6
36.1
Dissolved oxygen, water, unfiltered
mg/L
9.9
10.7
Fluoride, water, filtered
mg/L
0.20
0.20
Iron, water, filtered
µg/L
34.5
6
Magnesium, water, filtered
mg/L
28.2
12.5
Manganese, water, filtered
µg/L
20
0.8
pH, water, unfiltered, field
standard units
7.9
8.0
pH, water, unfiltered, laboratory
standard units
7.9
8.0
Potassium, water, filtered
mg/L
3.35
1.78
Silica, water, filtered
mg/L
6.10
1.28
Sodium, water, filtered
mg/L
75.8
11.4
Specific conductance, water, unfiltered, laboratory
µS/cm
875
308
Specific conductance, water, unfiltered, field
µS/cm
952
310
Sulfate, water, filtered
mg/L
42.8
24.1



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