Connecticut / Sewer operators /
Trumbull WPCA
Sewer utility · Connecticut
Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.
Small hollow diamonds mark places named in its overflow reports (provisional).
- Federal wastewater discharge permit (NPDES)
- not recorded
- Wastewater outlets
- None in EPA or state outlet records; 17 places named in its own overflow reports (provisional locations) · List
- Waters listed as receiving wastewater
- not recorded
- Tracked waters
- Pequonnock River, CT, Island Brook, CT
- Discharge records counted
- 29 records · latest
- Total reported volume in these records
- 912,895 gallons across the 16 records that give a volume (13 without one)
These totals reflect the records we track. Missing volumes and gaps in reporting limit comparisons between operators.
Sources: EPA ECHO and the operator and state sources linked below. Counts use the discharge records on this page. Updated 2026-11-05 06:27 UTC.
Public notices and alerts
We do not list an alert service for this operator yet. Check its website.
Its public-notice channels
- Health department page · Required by law
Health department page not read
CGS 22a-424a(c)(3): the operator notifies the chief elected official and local health official (and those downstream) within 2 hours; they inform the public within 2 more hours, by social media allowed, in each predominant language
Source: Trumbull WPCA's public notice and alert pages and the state's notification records; DirtyWaterWatch register of public-notice channels and its page monitor.
Report a missing notice or error
Wastewater outlets
Outfall: a pipe or outlet where wastewater enters a water body.
None in EPA or state outlet records; 17 places named in its own overflow reports (provisional locations).
Places named in overflow reports (provisional)
17 places · 8 not on the map (reports say the sewage reached no water)
Provisional location from overflow reports. Where the operator's own reports put an overflow: a manhole, pump station or plant. Not an outfall listed in a permit.
- Reported place · 7 overflow reports, latest Nov 4, 2026 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 2 overflow reports, latest Jun 24, 2023 · confidence medium · no water record yet
- Reported place · 2 overflow reports, latest Jul 16, 2019 · confidence high · Pequonnock River, CT
- Reported place · 2 overflow reports, latest Sep 25, 2018 · confidence high · no water record yet
- Reported place · 1 overflow report, latest Oct 9, 2025 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 1 overflow report, latest Aug 29, 2024 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 1 overflow report, latest May 13, 2024 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 1 overflow report, latest Mar 27, 2024 · confidence medium · no water record yet · not on the map: its reports say the sewage did not reach a water
- Reported place · 1 overflow report, latest Jul 15, 2023 · confidence medium · no water record yet
- Reported place · 1 overflow report, latest Nov 10, 2022 · confidence medium · no water record yet
- Reported place · 1 overflow report, latest Sep 1, 2022 · confidence medium · no water record yet
- Reported place · 1 overflow report, latest Aug 26, 2022 · confidence medium · no water record yet
Showing 12 of 17.
Source: the operator's own overflow reports to the state. DirtyWaterWatch groups reports within 50 metres into one place and finds the water below it with U.S. Geological Survey river maps (NLDI, NHDPlus). Not a permitted outfall; provisional until an official outfall record exists.
Reports and advisories
Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.
| When | Report | Status |
|---|---|---|
| Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · “less than 100 gallons” report · notice · map | ongoing | |
| to 7:30 PM | Water not mapped · Sewer Main, 6488 CT-111, Trumbull, CT · SSO · “less than 100 gals” report · notice | ended |
| to 6:00 PM | Water not mapped · Sewer Main, 6528 Main St, Trumbull, CT · SSO (earlier version) · volume in each report | ended |
| to 6:00 PM | Water not mapped · Sewer Main, 6528 Main St, Trumbull, CT · SSO (earlier version) · 45 gallons report · notice | ended |
| Water not mapped · Sewer Main, 6528 Main St, Trumbull, CT · SSO (earlier version) · “3 gallons per hour” report · notice | reported | |
| to 6:00 PM | Water not mapped · Sewer Main, 6528 Main St, Trumbull, CT · SSO · “less than 50 gallons” report · notice | ended |
| to 6:15 PM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO (earlier version) · 66 gallons in all | ended |
| to 6:15 PM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO (earlier version) · 50 gallons report · notice | ended |
| Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO (earlier version) · 1 gallon report · notice | reported | |
| to 6:15 PM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · 15 gallons report · notice | ended |
| to 10:30 AM | “No Sewage to any water body or storm rain. All sewage was contained with in the trench and was removed via a Vac Truck.” · Sewer Main, 1545 Old Town Rd, Trumbull, CT · SSO · 300 gallons report · notice | ended |
| to 9:00 AM | Water not mapped · Sewer Main, 7 Whitney Ave, Trumbull, CT · SSO · 300 gallons report · notice | ended |
| to May 14 ’24, 5:00 PM | Water not mapped · Sewer Main, 75 Merritt Blvd, Trumbull, CT · SSO · 14,400 gallons report · notice | ended |
| to 10:30 AM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · 600 gallons report · notice | ended |
| to Apr 27 ’24, 10:30 PM | Water not mapped · Manhole, 9 Valley View Rd, Trumbull, CT · SSO · 1,500 gallons report · notice | ended |
| to 6:30 PM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · 3,000 gallons report · notice | ended |
| to 10:00 AM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · 80 gallons report · notice | ended |
| to 7:00 PM | “Large inland wetland area leading to Roosevelt Forest” · Pump Station, 135 Merritt Blvd, Trumbull, CT · SSO · 2,850 gallons report · notice | ended |
| to 9:30 AM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · 50 gallons report · notice | ended |
| to 7:15 PM | Pequonnock River · Pump Station, 2595 Reservoir Ave, Trumbull, CT · SSO · 2,500 gallons report · notice · map | ended |
| to 8:30 PM | Pequonnock River · Sewer Main, 1875 Noble Ave, Bridgeport, CT · SSO · 290,000 gallons report · notice · map | ended |
| to 1:30 PM | “storm line ends up in Bridgeport lake forest” · Manhole, 1741 Old Town Rd, Bridgeport, CT · SSO · “Unknown water was going into storm line size of garden hose” report · notice | ended |
| to 9:30 PM | Island Brook · Sewer Main, 52 Koger Rd, Trumbull, CT · SSO · “It is unknown when the brackets retaining two sections of pipe failed allowing them to dislocated fr” report · notice · map | ended |
| to Jul 27 ’22, 3:30 AM | Pequonnock River · Sewer Main, 3296 E Main St, Bridgeport, CT · SSO · 498,000 gallons report · notice · map | ended |
| to May 31 ’22, 7:30 PM | Water not mapped · Sewer Main, 6466 Main St, Trumbull, CT · SSO · “best guess estimate would be under 100 gal” report · notice | ended |
| to Apr 9 ’22, 2:45 PM | Water not mapped · Sewer Main, Main St, Trumbull, CT · SSO · 9,000 gallons report · notice | ended |
| to 2:45 PM | “Storm water stream” · Pump Station, 2595 Reservoir Ave, Trumbull, CT · SSO · “Pumping lasted about 1hr and 1/2pump is rated for 88 gpm final estimate 8,000.00 gals” report · notice | ended |
Sources: CT DEEP CSO/SSO Performance Dashboard (QScend), retrieved 2026-11-05 06:07 UTC; CT DEEP Sewage Right-to-Know annual report 2024, retrieved 2026-11-05 06:07 UTC. A report's record id and times show when you hover or focus its "report" link.
Showing the latest 25 records of 33 records.See them all with filters.
All reports in Connecticut by year: 2026 (2 from Trumbull WPCA) · 2025 (6 from Trumbull WPCA) · 2024 (5 from Trumbull WPCA) · 2023 (5 from Trumbull WPCA) · 2022 (7 from Trumbull WPCA) · 2021 (2 from Trumbull WPCA) · 2020 (1 from Trumbull WPCA) · 2019 (2 from Trumbull WPCA) · 2018 (3 from Trumbull WPCA)
Other sewer operators on these waters
- Pequonnock River, CT: City of Bridgeport WPCA - West Side WPCF (Bostwick Ave) and West Side combined sewers, City of Bridgeport WPCA - East Side WPCF (Seaview Ave) and East Side combined sewers
- Island Brook, CT: City of Bridgeport WPCA - West Side WPCF (Bostwick Ave) and West Side combined sewers, City of Bridgeport WPCA - East Side WPCF (Seaview Ave) and East Side combined sewers
The last 90 days
No discharge, advisory or caution periods are shown for the waters this sewer operator's reports were placed on in this time span. Check downstream stretches and source coverage.
Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-05 06:27 UTC.
Reported discharges over time
- Discharges reported by Trumbull WPCA, last 12 months2December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
- Days with a discharge reported by Trumbull WPCA, last 12 months2December 2025 to November 2026A day counts once however many discharges were under way on it.
- Hours with a discharge or advisory status from Trumbull WPCA's reports, last 12 months70December 2025 to November 2026Red hours by the map's rules: each discharge to its reported end plus the state's post-discharge period; overlapping hours count once.
- 2026 season with a discharge or advisory status (Trumbull WPCA)1.2%May to October 2026Share of May 1 to October 31 hours with red status by the map's rules, of the hours a source covered.
Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater.
Reported discharges per month
21 reported discharges, January 2022 to November 2026.
- Combined sewer overflow
- Sanitary sewer overflow
- Treatment bypass, blended or other
Connecticut dashboard records begin December 2, 2021; annual-report rows that repeat a dashboard record are counted once. Connecticut's Sewage Right-to-Know annual reports cover January 1, 2021 to November 5, 2026.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports. Records cover January 1, 2022 to November 5, 2026.
Show table
| Month | Combined sewer overflow | Sanitary sewer overflow | Treatment bypass, blended or other | Total | Counted from | Coverage |
|---|---|---|---|---|---|---|
| January 2022 | 0 | 0 | 0 | 0 | ||
| February 2022 | 0 | 0 | 0 | 0 | ||
| March 2022 | 0 | 1 | 0 | 1 | Source records | |
| April 2022 | 0 | 1 | 0 | 1 | Source records | |
| May 2022 | 0 | 1 | 0 | 1 | Source records | |
| June 2022 | 0 | 0 | 0 | 0 | ||
| July 2022 | 0 | 1 | 0 | 1 | Source records | |
| August 2022 | 0 | 1 | 0 | 1 | Source records | |
| September 2022 | 0 | 1 | 0 | 1 | Source records | |
| October 2022 | 0 | 0 | 0 | 0 | ||
| November 2022 | 0 | 1 | 0 | 1 | Source records | |
| December 2022 | 0 | 0 | 0 | 0 | ||
| January 2023 | 0 | 0 | 0 | 0 | ||
| February 2023 | 0 | 0 | 0 | 0 | ||
| March 2023 | 0 | 0 | 0 | 0 | ||
| April 2023 | 0 | 0 | 0 | 0 | ||
| May 2023 | 0 | 0 | 0 | 0 | ||
| June 2023 | 0 | 1 | 0 | 1 | Source records | |
| July 2023 | 0 | 2 | 0 | 2 | Source records | |
| August 2023 | 0 | 0 | 0 | 0 | ||
| September 2023 | 0 | 1 | 0 | 1 | Source records | |
| October 2023 | 0 | 1 | 0 | 1 | Source records | |
| November 2023 | 0 | 0 | 0 | 0 | ||
| December 2023 | 0 | 0 | 0 | 0 | ||
| January 2024 | 0 | 0 | 0 | 0 | ||
| February 2024 | 0 | 0 | 0 | 0 | ||
| March 2024 | 0 | 1 | 0 | 1 | Source records | |
| April 2024 | 0 | 0 | 0 | 0 | ||
| May 2024 | 0 | 2 | 0 | 2 | Source records | |
| June 2024 | 0 | 0 | 0 | 0 | ||
| July 2024 | 0 | 0 | 0 | 0 | ||
| August 2024 | 0 | 1 | 0 | 1 | Source records | |
| September 2024 | 0 | 0 | 0 | 0 | ||
| October 2024 | 0 | 1 | 0 | 1 | Source records | |
| November 2024 | 0 | 0 | 0 | 0 | ||
| December 2024 | 0 | 0 | 0 | 0 | ||
| January 2025 | 0 | 0 | 0 | 0 | ||
| February 2025 | 0 | 0 | 0 | 0 | ||
| March 2025 | 0 | 0 | 0 | 0 | ||
| April 2025 | 0 | 0 | 0 | 0 | ||
| May 2025 | 0 | 1 | 0 | 1 | Source records | |
| June 2025 | 0 | 0 | 0 | 0 | ||
| July 2025 | 0 | 0 | 0 | 0 | ||
| August 2025 | 0 | 0 | 0 | 0 | ||
| September 2025 | 0 | 0 | 0 | 0 | ||
| October 2025 | 0 | 1 | 0 | 1 | Source records | |
| November 2025 | 0 | 0 | 0 | 0 | ||
| December 2025 | 0 | 0 | 0 | 0 | ||
| January 2026 | 0 | 0 | 0 | 0 | ||
| February 2026 | 0 | 0 | 0 | 0 | ||
| March 2026 | 0 | 0 | 0 | 0 | ||
| April 2026 | 0 | 0 | 0 | 0 | ||
| May 2026 | 0 | 0 | 0 | 0 | ||
| June 2026 | 0 | 0 | 0 | 0 | ||
| July 2026 | 0 | 0 | 0 | 0 | ||
| August 2026 | 0 | 0 | 0 | 0 | ||
| September 2026 | 0 | 1 | 0 | 1 | Source records | |
| October 2026 | 0 | 0 | 0 | 0 | ||
| November 2026 | 0 | 1 | 0 | 1 | Source records |
Hours with a discharge or advisory status per month
Hours when a water had a discharge or advisory status from this sewer operator's reports, under DirtyWaterWatch rules.
- Discharge or advisory reported
4 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here. Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only. Connecticut dashboard records begin December 2, 2021; annual-report rows that repeat a dashboard record are counted once. Connecticut's Sewage Right-to-Know annual reports cover January 1, 2021 to November 5, 2026. Connecticut's reporting archive runs from July 4, 2016 to December 2, 2021.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports; Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021. Records cover July 4, 2016 to November 5, 2026.
Show table
| Month | Hours with a discharge or advisory status | Hours from post-discharge periods | Hours in the month | Coverage |
|---|---|---|---|---|
| January 2022 | 0 | 0 | 744 | |
| February 2022 | 0 | 0 | 672 | |
| March 2022 | 11 | 11 | 744 | |
| April 2022 | 111 | 111 | 720 | |
| May 2022 | 684 | 684 | 744 | |
| June 2022 | 44 | 44 | 720 | |
| July 2022 | 61 | 61 | 744 | |
| August 2022 | 55 | 55 | 744 | |
| September 2022 | 49 | 49 | 720 | |
| October 2022 | 0 | 0 | 744 | |
| November 2022 | 59 | 59 | 720 | |
| December 2022 | 0 | 0 | 744 | |
| January 2023 | 0 | 0 | 744 | |
| February 2023 | 0 | 0 | 672 | |
| March 2023 | 0 | 0 | 744 | |
| April 2023 | 0 | 0 | 720 | |
| May 2023 | 0 | 0 | 744 | |
| June 2023 | 49 | 49 | 720 | |
| July 2023 | 107 | 107 | 744 | |
| August 2023 | 0 | 0 | 744 | |
| September 2023 | 50 | 50 | 720 | |
| October 2023 | 49 | 49 | 744 | |
| November 2023 | 0 | 0 | 720 | |
| December 2023 | 0 | 0 | 744 | |
| January 2024 | 0 | 0 | 744 | |
| February 2024 | 0 | 0 | 696 | |
| March 2024 | 101 | 101 | 744 | |
| April 2024 | 695 | 695 | 720 | |
| May 2024 | 121 | 121 | 744 | |
| June 2024 | 0 | 0 | 720 | |
| July 2024 | 0 | 0 | 744 | |
| August 2024 | 50 | 50 | 744 | |
| September 2024 | 0 | 0 | 720 | |
| October 2024 | 50 | 50 | 744 | |
| November 2024 | 0 | 0 | 720 | |
| December 2024 | 0 | 0 | 744 | |
| January 2025 | 0 | 0 | 744 | |
| February 2025 | 0 | 0 | 672 | |
| March 2025 | 0 | 0 | 744 | |
| April 2025 | 0 | 0 | 720 | |
| May 2025 | 56 | 56 | 744 | |
| June 2025 | 0 | 0 | 720 | |
| July 2025 | 0 | 0 | 744 | |
| August 2025 | 0 | 0 | 744 | |
| September 2025 | 0 | 0 | 720 | |
| October 2025 | 55 | 55 | 744 | |
| November 2025 | 0 | 0 | 720 | |
| December 2025 | 0 | 0 | 744 | |
| January 2026 | 0 | 0 | 744 | |
| February 2026 | 0 | 0 | 672 | |
| March 2026 | 0 | 0 | 744 | |
| April 2026 | 0 | 0 | 720 | |
| May 2026 | 0 | 0 | 744 | |
| June 2026 | 0 | 0 | 720 | |
| July 2026 | 0 | 0 | 744 | |
| August 2026 | 0 | 0 | 744 | |
| September 2026 | 54 | 54 | 720 | |
| October 2026 | 0 | 0 | 744 | |
| November 2026 | 16 | 16 | 99 |
Days with a reported discharge per month
A day counts when any counted discharge was under way on it, from its start to its reported end in Eastern Time; a report with no end counts its start day.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports. Records cover January 1, 2022 to November 5, 2026.
Show table
| Month | Days with a reported discharge | Coverage |
|---|---|---|
| January 2022 | 0 | |
| February 2022 | 0 | |
| March 2022 | 1 | |
| April 2022 | 2 | |
| May 2022 | 29 | |
| June 2022 | 0 | |
| July 2022 | 2 | |
| August 2022 | 1 | |
| September 2022 | 1 | |
| October 2022 | 0 | |
| November 2022 | 1 | |
| December 2022 | 0 | |
| January 2023 | 0 | |
| February 2023 | 0 | |
| March 2023 | 0 | |
| April 2023 | 0 | |
| May 2023 | 0 | |
| June 2023 | 1 | |
| July 2023 | 2 | |
| August 2023 | 0 | |
| September 2023 | 1 | |
| October 2023 | 1 | |
| November 2023 | 0 | |
| December 2023 | 0 | |
| January 2024 | 0 | |
| February 2024 | 0 | |
| March 2024 | 5 | |
| April 2024 | 27 | |
| May 2024 | 3 | |
| June 2024 | 0 | |
| July 2024 | 0 | |
| August 2024 | 1 | |
| September 2024 | 0 | |
| October 2024 | 1 | |
| November 2024 | 0 | |
| December 2024 | 0 | |
| January 2025 | 0 | |
| February 2025 | 0 | |
| March 2025 | 0 | |
| April 2025 | 0 | |
| May 2025 | 1 | |
| June 2025 | 0 | |
| July 2025 | 0 | |
| August 2025 | 0 | |
| September 2025 | 0 | |
| October 2025 | 1 | |
| November 2025 | 0 | |
| December 2025 | 0 | |
| January 2026 | 0 | |
| February 2026 | 0 | |
| March 2026 | 0 | |
| April 2026 | 0 | |
| May 2026 | 0 | |
| June 2026 | 0 | |
| July 2026 | 0 | |
| August 2026 | 0 | |
| September 2026 | 1 | |
| October 2026 | 0 | |
| November 2026 | 1 |
Reported discharges per year, 2016 to 2026
29 reported discharges, 2016 to 2026.
- Combined sewer overflow
- Sanitary sewer overflow
- Treatment bypass, blended or other
- Incomplete source coverage
Connecticut dashboard records begin December 2, 2021; annual-report rows that repeat a dashboard record are counted once. Connecticut's Sewage Right-to-Know annual reports cover January 1, 2021 to November 5, 2026. Connecticut's reporting archive runs from July 4, 2016 to December 2, 2021.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports; Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021. Records cover July 4, 2016 to November 5, 2026.
Show table
| Year | Combined sewer overflow | Sanitary sewer overflow | Treatment bypass, blended or other | Total | Coverage |
|---|---|---|---|---|---|
| 2016 | 0 | 0 | 0 | 0 | Incomplete source coverage |
| 2017 | 0 | 0 | 0 | 0 | |
| 2018 | 0 | 3 | 0 | 3 | |
| 2019 | 0 | 2 | 0 | 2 | |
| 2020 | 0 | 1 | 0 | 1 | |
| 2021 | 0 | 2 | 0 | 2 | Incomplete source coverage |
| 2022 | 0 | 7 | 0 | 7 | |
| 2023 | 0 | 5 | 0 | 5 | |
| 2024 | 0 | 5 | 0 | 5 | |
| 2025 | 0 | 2 | 0 | 2 | |
| 2026 | 0 | 2 | 0 | 2 |
Reported volume per year
Gallons (axis: K thousand, M million), summed from the 16 reports that gave a volume as a number (13 did not).
- Incomplete source coverage
13 of 29 discharge reports gave no volume as a number (5 gave a range); only numbers are summed. Some volumes in Connecticut's annual reports are given as text or ranges and are not summed. Connecticut's 2016 to 2021 archive gives volumes as ranges ("20,001 - 50,000 gallons"); they are not summed.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports; Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021. Records cover July 4, 2016 to November 5, 2026.
Show table
| Year | Reported volume, gallons | Reports with a volume | Reports without a volume | Coverage |
|---|---|---|---|---|
| 2016 | 0 | 0 | 0 | Incomplete source coverage |
| 2017 | 0 | 0 | 0 | |
| 2018 | 90,000 | 1 | 2 | |
| 2019 | 0 | 0 | 2 | |
| 2020 | 0 | 0 | 1 | |
| 2021 | 300 | 1 | 1 | Incomplete source coverage |
| 2022 | 797,000 | 3 | 4 | |
| 2023 | 8,480 | 5 | 0 | |
| 2024 | 17,100 | 5 | 0 | |
| 2025 | 15 | 1 | 1 | |
| 2026 | 0 | 0 | 2 |
Hours with a discharge or advisory status per year
Hours with a discharge or advisory status each year under DirtyWaterWatch rules; 2026 to date.
- Discharge or advisory reported
- Incomplete source coverage
4 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here. Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports; Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021. Records cover July 4, 2016 to November 5, 2026.
Show table
| Year | Hours with a discharge or advisory status | Share of the year | Coverage |
|---|---|---|---|
| 2016 | 0 | 0.0% | Incomplete source coverage |
| 2017 | 0 | 0.0% | |
| 2018 | 132 | 1.5% | |
| 2019 | 0 | 0.0% | |
| 2020 | 62 | 0.7% | |
| 2021 | 0 | 0.0% | Incomplete source coverage |
| 2022 | 1,072 | 12.2% | |
| 2023 | 254 | 2.9% | |
| 2024 | 1,016 | 11.6% | |
| 2025 | 110 | 1.3% | |
| 2026 | 70 | 0.9% |
Reported discharges by calendar month, all years
Every counted discharge report, by the calendar month it began.
Months are summed over every year a tracked source covers; the table gives the number of years behind each month.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports; Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021. Records cover July 4, 2016 to November 5, 2026.
Show table
| Month | Reported discharges | Years of records |
|---|---|---|
| January | 1 | 10 |
| February | 0 | 10 |
| March | 4 | 10 |
| April | 1 | 10 |
| May | 4 | 10 |
| June | 2 | 10 |
| July | 4 | 11 |
| August | 2 | 11 |
| September | 5 | 11 |
| October | 3 | 11 |
| November | 3 | 11 |
| December | 0 | 10 |
Reported discharges by wastewater outlet
Wastewater outlets with the most tracked discharge records: 10 of 19, all years. Counts depend on reporting coverage and do not measure legal compliance or harm.
Connecticut dashboard records begin December 2, 2021; annual-report rows that repeat a dashboard record are counted once. Connecticut's Sewage Right-to-Know annual reports cover January 1, 2021 to November 5, 2026. Connecticut's reporting archive runs from July 4, 2016 to December 2, 2021.
Sources: Connecticut Department of Energy and Environmental Protection sewage overflow dashboard; Connecticut Sewage Right-to-Know annual reports; Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021. Records cover July 4, 2016 to November 5, 2026.
Show table
| Wastewater outlet | Sewer operator | Reported discharges |
|---|---|---|
| Sewer Main, 6466 Main St, Trumbull, CT | TRUMBULL | 7 |
| Pump Station, 2595 Reservoir Ave, Trumbull, CT | TRUMBULL | 2 |
| Manhole, 6923 Main Street | Trumbull WPCA | 2 |
| Manhole, 119 White Plains Rd | Trumbull WPCA | 2 |
| Pump Station, 119 White Plains Rd | Trumbull WPCA | 2 |
| Sewer Main, 1545 Old Town Rd, Trumbull, CT | TRUMBULL | 1 |
| Sewer Main, 7 Whitney Ave, Trumbull, CT | TRUMBULL | 1 |
| Sewer Main, 75 Merritt Blvd, Trumbull, CT | TRUMBULL | 1 |
| Manhole, 9 Valley View Rd, Trumbull, CT | TRUMBULL | 1 |
| Pump Station, 135 Merritt Blvd, Trumbull, CT | TRUMBULL | 1 |
| Other outlets (9) | 9 |
How these charts are counted
We count each discharge once. Where a source publishes notices and confirmed reports, we use confirmed reports for an operator's month when available; otherwise we use notices. We combine revisions and exclude duplicate state reports copied by the U.S. Environmental Protection Agency (EPA). Monthly and yearly totals appear separately. Status hours follow this site's rules. Shaded gaps mean missing coverage, not zero discharges.
- Connecticut Department of Energy and Environmental Protection sewage overflow dashboard: records from December 2, 2021 to the latest update
- Connecticut Sewage Right-to-Know annual reports: records from January 1, 2021 to the latest update
- Connecticut Department of Energy and Environmental Protection reporting archive, 2016 to 2021: records from July 4, 2016 to December 2, 2021