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Consent Decree

In 2007, the State of Missouri and the United States Environmental Protection Agency (EPA) filed a lawsuit against MSD regarding overflows. The Missouri Coalition for the Environment later joined the lawsuit as an intervener. Throughout MSD’s service area, there are hundreds of points where a combination of stormwater and wastewater discharges into local waterways from the sewer system during moderate to heavy rainstorms. These sewer overflow points act as relief valves when too much stormwater enters the sewer system, and without them, our community could experience thousands of basement backups and/or extensive street flooding.

Though most overflows predate MSD's creation in 1954, they are still our responsibility, and efforts to address the problem must continue. From 1992 to 2012, MSD spent approximately $2.7 billion to remove more than 350 overflows. To address the remaining overflows, of which there are fewer than 400, we must increase our collection and treatment capabilities – an expensive, complicated, and decades-long task.

In August 2011, the Department of Justice filed a settlement, or consent decree, requiring MSD to spend a minimum $4.7 billion over the next 23 years to address the issue of overflows and other sewer system improvements.

The consent decree agreement between MSD, the EPA, and the Missouri Coalition for the Environment has been accepted by the United States District Court. The consent decree has been entered and went into effect on April 27, 2012.

 

View the Consent Decree

 

Consent Decree Modifications

1. Revision of CSO Control Measure Design Criteria - Appendix D (Lemay CSO Outfall 063)

a. Letter to EPA with Proposed Revision (3/26/13)

b. Agreed Non-Material Consent Decree Modification (7/5/13)

2. Amendment to Consent Decree - Appendix D, Appendix E (Bissell Point Outfalls 051 and 052, Maline Creek CSO Controls, Post-Construction Monitoring Program)

a. Amendment to Consent Decree (10/10/13)

3. Alternative Supplemental Environmental Project (SEP)

a. Letter to EPA with Proposed Alternative SEP (9/15/14)

b. Approval of Alternative SEP (11/26/14)

4. Revisions of CSO Control Measure Design Criteria - Appendix D, Appendix E (Lemay CSO Outfall 063 and River Des Peres Storage Tunnels)

a. Letter to EPA with Proposed Revisions (Non-Material Modification A and Non-Material Modification B) (2/4/15)

b. Second Agreed Non-Material Consent Decree Modification for Lemay CSO Outfall 063 and RDP Storage Tunnels (Non-Material Modification A) (4/7/15)

c. Letter from EPA clarifying Design Criteria for CSO Control Measures for RDP Storage Tunnels (Non-Material Modification B) (3/9/15)

 

Consent Decree Related Links

Project Clear

Building Backup Cleanup Guide

FOG Educational Information

 

Reports

2017

Semi Annual Report, January 1 to June 30, 2017

2016

Annual Report, January 1 to December 31, 2016
Semi Annual Report, July 1 to December 31, 2016
Semi Annual Report, January 1 to June 30, 2016

2015

Annual Report, January 1 to December 31, 2015
Semi Annual Report, July 1 to December 31, 2015
Semi Annual Report, January 1 to June 30, 2015

2014

Annual Report, January 1 to December 31, 2014
Semi Annual Report, July 1 to December 31, 2014
Semi Annual Report, January 1 to June 30, 2014

2013

Annual Report, January 1 to December 31, 2013
Semi Annual Report, July 1 to December 31, 2013
Semi Annual Report, January 1 to June 30, 2013

2012

Annual Report, January 1 to December 31, 2012
Semi Annual Report, July 1 to December 31, 2012
Semi Annual Report, April 27 to June 30, 2012