wastewater + stormwater Consent Decree Home About Us Our Organization Consent Decree Our Organization Find answers fast. Select a subject from the menu below: Select a subject Pay My Bill Report an Issue Payment Options Billing Questions Careers Want to do business with us? What is MSD Project Clear? What does MSD do? Contact Us Customer Service: 1 (314) 768-6260 Billing: 1 (866) 281-5737 Helpful Resources MSD FAQs Event Calendar What’s New with MSD MSD Boundary Map Our Map for the Future 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. Without them, our community could experience thousands of basement backups and extensive street flooding. Though most overflows predate MSD’s creation in 1954, they are still our responsibility, and our efforts to address the problem continue. From 1992 to 2012, MSD spent approximately $2.7 billion to remove more than 350 overflows. Fewer than 400 overflows remain. To address these, we are increasing 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 was accepted by the United States District Court and 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) 5. Approval CMOM Plan Modification – Line Cleaning Performance Standards and Acoustic Testing a. Approval Modification of Capacity, Management, Operations and Maintenance (CMOM) Program Plan (12/02/2016) 6. Approval CMOM Plan Modification – Pump Station and Force Main Inspection and Testing Modification a. Approval CMOM Plan Modification – Pump Station and Force Main Inspection and Testing Modification (12/10/2020) Consent Decree Amendment In June, 2018, an amendment to the original consent decree extended the program by five years and an additional $20 million. Learn more about the additional improvements MSD has in store thanks to the backing of the amendment. Second Material Amendment to Consent Decree (06/22/2018) READ MORE Consent Decree Reports VIEW REPORTS Consent Decree Related Links BUILDING BACKUP CLEANUP GUIDE FOG EDUCATIONAL INFORMATION Mission To protect the public’s health, safety, and water environment by responsibly providing wastewater and stormwater management. Vision Quality service always. Popular Links Calendar News & Alerts Diversity Careers Contact Us Payment Options Public Documents Search Follow Us 2350 Market Street St. Louis, MO 63103-2555 Customer Service: 1 (314) 768-6260 Billing: 1 (866) 281-5737 © 2021 Metropolitan St. Louis Sewer District. All rights reserved. Privacy Policy Site Map Terms of Use