Publications

Date Title
January 26, 2026 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2025 4TH QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
October 28, 2025 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2025 3RD QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
July 28, 2025 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2025 2nd QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
April 28, 2025 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2025 1st QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
January 27, 2025 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2024 4th QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
October 24, 2024 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2024 3RD QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
July 24, 2024 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2024 2nd QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
April 25, 2024 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2024 1st QUARTER COMBINED SEWER OVERFLOW FACILITIES QUARTERLY REPORT
January 29, 2024 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2023 4th Quarter Combined Sewer Overflow Facilities Quarterly Report
October 24, 2023 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2023 3rd Quarter Combined Sewer Overflow Facilities Quarterly Report
July 27, 2023 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2023 2nd Quarter Combined Sewer Overflow Facilities Quarterly Report
April 28, 2023 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2023 1st Quarter Combined Sewer Overflow Facilities Quarterly Report
January 26, 2023 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2022 4th Quarter Combined Sewer Overflow Facilities Quarterly Report
October 28, 2022 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2022 3rd Quarter Combined Sewer Overflow Facilities Quarterly Report
July 26, 2022 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2022 2nd Quarter Combined Sewer Overflow Facilities Quarterly Report
April 29, 2022 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2022 1st Quarter Combined Sewer Overflow Facilities Quarterly Report
January 27, 2022 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2021 4th Quarter Combined Sewer Overflow Facilities Quarterly Report
October 27, 2021 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2021 3rd Quarter Combined Sewer Overflow Facilities Quarterly Report
July 27, 2021 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2021 2nd Quarter Combined Sewer Overflow Facilities Quarterly Report
May 03, 2021 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2021 1st Quarter Combined Sewer Overflow Facilities Quarterly Report
February 04, 2021 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2020 4th Quarter Combined Sewer Overflow Facilities Quarterly Report
October 29, 2020 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2020 3rd Quarter Combined Sewer Overflow Facilities Quarterly Report
July 30, 2020 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2020 2nd Quarter Combined Sewer Overflow Facilities Quarterly Report
April 30, 2020 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2020 1st Quarter Combined Sewer Overflow Facilities Quarterly Report
February 04, 2020 Operational and Environmental Information;
CSO Division Quarterly Operation Reports

2019 4th Quarter Combined Sewer Overflow Facilities Quarterly Report

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

View of Mary at bottom of shaft inside tunnel shown from above
DC Water Launches Tunnel Boring Machine Mary, Marking Important Step for Potomac River Tunnel Project

First turn of cutterhead signals the start of excavation for the Potomac River Tunnel Project

In a defining moment for one of the District’s largest infrastructure investments, DC Water has marked its next major milestone in the Potomac River Tunnel Project. The first tunnel boring machine, Mary, has launched her northbound journey breaking through the soil to signal the start of excavation.

With the first turn of Mary’s drill-like cutterhead underground, the machine pushed forward to begin tunneling, representing the transition from years of planning and preparation to active tunnel construction on the $819 million project.

Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
Upcoming Meeting
Date
April 15, 2026
Wednesday, 9:30 AM

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.