MMSD Sewer History


The Water Quality Portal (WQP)

is a cooperative service sponsored by the United States Geological Survey (USGS), the Environmental Protection Agency (EPA), and the National Water Quality Monitoring Council (NWQMC). The Portal contains data from numerous other organizations throughout the nation.

To obtain MMSD surface water quality monitoring data follow the directions below.

  1. Follow the link to the Water Quality Portal:
  2. Under Site Parameters, type “MMSD” in the Organization ID box and select “WI_MMSD - Milwaukee Metropolitan Sewerage District” from the search results.
  3. To see all sampling data click on “Sample results (biological metadata)” near the bottom of the page.
  4. Choose the desired file format.
  5. Click the “Download” button.

The Water Quality Portal can be searched using any combination of these options: Location, Site Parameters, and/or Sampling Parameters. To see the locations of sites before downloading the data, use the "Show sites on map" button. Information about the sites can be obtained by left-clicking on the site marker on the map. The site information feature on the map does not work in Internet Explorer, but will work in all other browsers.

Additional information on downloading data can be found on the Water Quality Data Portal User Guide: The MMSD Records Department can assist in additional requests regarding sampling data.

Disclaimer: MMSD strives to ensure that all technical data and other information made available to the public are accurate, complete, and in conformance with the Wisconsin Public Records Law. We cannot guarantee the accuracy or completeness of the information provided from this database search and information obtained should be used with caution. Persons using information for purpose for which accuracy and completeness are required are advised that the data contained herein may be subject to change.