DirtyWaterWatch

Connecticut / Dischargers /

Town of Westport WPCF and pump stations

SSO · Connecticut · Westport

NPDES permit
CT0100684
Outfalls
none with coordinates yet
Receiving waters
Saugatuck River; Muddy Brook
Tracked waters
Saugatuck River, CT, Long Island Sound, CT
Events tracked
30 discharges · latest Sep 13, 2026, 5:00 PM EDT
Volume reported
227,385 gallons across the 17 discharges that give a volume (13 without one)

Source: discharger record from the project's research and EPA ECHO (dischargers.json); counts from the 30 event records below, as of 2026-11-02 11:56 UTC.

How it tells the public

CT DEEP Performance Dashboard (QScend QAlert reports shown in Zoho Analytics open views: https://deepct.qscend.mygovcenter.com/cms/cms?id=1); X/Twitter @CTSewageSpills (manual DEEP posts). Statutory local notice: operator must notify the chief elected official and local health official within 2 h; they must inform the public within 2 h of receipt (CGS 22a-424a(c)(3)) - channel varies by town.

Source: the project's research on each operator's notification channel (research/<state>/dischargers.json), checked by fetching the operator's pages.

Outfalls

Source: water outlines from OpenBoatLaunch and OpenStreetMap contributors (ODbL); outfalls from EPA ECHO and the state outfall layers; modeled reaches computed by DirtyWaterWatch from USGS NLDI, NHDPlus and the nearest USGS gauge (Jobson 1996); basemap OpenFreeMap and OpenMapTiles.

Event history

Events reported for Town of Westport WPCF and pump stations, newest first
StartEnd Water OutfallTypeVolumeSourceLinks
Sep 13, 2026, 5:00 PM EDT Sep 13, 2026, 9:00 PM EDT “Sasco Creek” (not placed) Manhole, 402 Greens Farms Rd, Westport, CT Sanitary sewer overflow 18,000 gal WESTPORT (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11461, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice Event: Sanitary sewer overflow, WESTPORT, Sep 13, 2026, 5:00 PM EDT
Sep 13, 2026, 3:00 PM EDT Sep 14, 2026, 12:00 AM EDT “Muddy Brook” (not placed) Manhole, 24 Center St, Westport, CT Sanitary sewer overflow 50,000 gal WESTPORT (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11454, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice Event: Sanitary sewer overflow, WESTPORT, Sep 13, 2026, 3:00 PM EDT
Jul 31, 2026, 11:45 AM EDT Jul 31, 2026, 8:15 PM EDT not placed Sewer Main, 116 Hillspoint Rd, Westport, CT Sanitary sewer overflow 50 gal WESTPORT (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11126, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice Event: Sanitary sewer overflow, WESTPORT, Jul 31, 2026, 11:45 AM EDT
May 26, 2026, 8:15 PM EDT May 26, 2026, 11:00 PM EDT not placed Manhole, 25 Crescent Rd, Westport, CT Sanitary sewer overflow 100 gal WESTPORT (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 10698, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice Event: Sanitary sewer overflow, WESTPORT, May 26, 2026, 8:15 PM EDT
Mar 11, 2024, 2:45 PM EDT Mar 11, 2024, 6:00 PM EDT “Stony Brook/ Nash's Pond” (not placed) Manhole, 4 Blind Brook Rd S, Westport, CT Sanitary sewer overflow 3,000 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x3f3c6ea5419a, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Mar 7, 2024, 8:30 AM EST Mar 7, 2024, 4:00 PM EST “Muddy Brook” (not placed) Sewer Main, 9 Hillandale Rd, Westport, CT Sanitary sewer overflow 150,000 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x6b2f2460ac35, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jan 4, 2024, 2:45 PM EST Jan 4, 2024, 6:00 PM EST “Mill Pond” (not placed) Sewer Main, 176 Hillspoint Rd, Westport, CT Sanitary sewer overflow 150 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x9dd288257ab8, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Nov 13, 2023, 11:45 AM EST Nov 13, 2023, 12:30 PM EST not placed Manhole, 402 Greens Farms Rd, Westport, CT Sanitary sewer overflow 150 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xbef441c581a6, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Nov 13, 2023, 12:00 AM EST Nov 13, 2023, 3:30 PM EST not placed Sewer Main, 1460 Post Rd E, Westport, CT Sanitary sewer overflow 35 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xe67d1371ebd9, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Oct 17, 2023, 3:00 PM EDT Oct 17, 2023, 6:00 PM EDT “Stoney Brook” (not placed) Sewer Main, 240 Riverside Ave, Westport, CT Sanitary sewer overflow 2,000 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xec112eb38464, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Sep 15, 2023, 4:30 AM EDT Sep 15, 2023, 6:00 PM EDT Saugatuck River, CT Pump Station, 605 Riverside Ave, Westport, CT Sanitary sewer overflow 500 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record x8ed12ff437de, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Aug 21, 2023, 6:30 AM EDT Aug 21, 2023, 4:30 PM EDT not placed Sewer Main, 1690 Post Rd E, Westport, CT Sanitary sewer overflow 200 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xfd80333356d5, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Aug 21, 2023, 6:30 AM EDT Aug 21, 2023, 4:30 PM EDT not placed Sewer Main, 1680 Post Rd E, Westport, CT Sanitary sewer overflow 200 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record x9ee75106c465, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
May 22, 2023, 2:30 PM EDT May 22, 2023, 5:45 PM EDT not placed Lateral - Public, 7 Lamplight Ln, Westport, CT Sanitary sewer overflow 500 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xe2024f4e5e40, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Aug 15, 2022, 10:15 AM EDT Aug 15, 2022, 8:00 PM EDT not placed Sewer Main, 1790 Post Rd E, Westport, CT Sanitary sewer overflow 500 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record x3949bca1446f, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jul 19, 2022, 12:45 AM EDT Jul 19, 2022, 4:30 PM EDT not placed Sewer Main, 1790 Post Rd E, Westport, CT Sanitary sewer overflow 1,000 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record x6f05bae170c7, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
May 19, 2022, 4:30 PM EDT May 20, 2022, 5:30 AM EDT not placed Sewer Main, 1780 Post Rd E, Westport, CT Sanitary sewer overflow 1,000 gal WESTPORT (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record x02bb3a16c315, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jul 9, 2021, 2:30 PM EDT Jul 9, 2021, 5:00 PM EDT not placed Manhole, 25 Crescent Road, Cross Street is Crescent Park Road Sanitary sewer overflow “< 5,000” Westport (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record xd20bd2be520f, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice record below
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jul 9, 2021, 2:30 PM EDT Jul 9, 2021, 5:00 PM EDT not placed Manhole, 25 Crescent Road, Cross Street is Crescent Park Road Sanitary sewer overflow “< 5,000” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963664, reported Jul 9, 2021, 4:24 PM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Aug 14, 2019, 10:00 AM EDT Aug 14, 2019, 12:00 PM EDT Saugatuck River, CT Manhole, 177 riverside ave westport ct. Sanitary sewer overflow “1,001 - 5,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965064, reported Aug 14, 2019, 10:31 AM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Aug 3, 2019, 2:00 PM EDT Aug 3, 2019, 8:30 PM EDT Saugatuck River, CT Pump Station, 595 riverside ave. westport ct. 06880 Sanitary sewer overflow “20,001 - 50,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965067, reported Aug 3, 2019, 3:46 PM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Aug 3, 2019, 2:00 PM EDT Aug 3, 2019, 8:30 PM EDT Saugatuck River, CT Pump Station, 595 riverside ave. westport ct. 06880 Sanitary sewer overflow “20,001 - 50,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965066, reported Aug 3, 2019, 3:46 PM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Nov 1, 2018, 11:15 PM EDT Nov 2, 2018, 7:45 AM EDT not placed Sewer Main, 1780 post road east westport ct 06880 Sanitary sewer overflow “501 - 1,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965118, reported Nov 2, 2018, 12:45 AM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Oct 25, 2018, 1:15 PM EDT Oct 25, 2018, 8:00 PM EDT not placed Sewer Main, 1780 post road east wesport ct 06880 Sanitary sewer overflow “501 - 1,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965148, reported Oct 25, 2018, 2:34 PM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Sep 29, 2018, 9:37 AM EDT Sep 29, 2018, 6:00 PM EDT not placed Sewer Main, pumkin hill road Sanitary sewer overflow “501 - 1,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965065, reported Sep 29, 2018, 10:59 AM EDT, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jan 6, 2018, 3:09 AM EST Jan 6, 2018, 4:30 AM EST Saugatuck River, CT Pump Station, 8 wilton road westport ct 06880 Sanitary sewer overflow “1,001 - 5,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965681, reported Mar 1, 2018, 10:47 AM EST, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jan 6, 2018, 3:09 AM EST Jan 6, 2018, 4:30 AM EST Saugatuck River, CT Pump Station, 8 wilton road westport ct 06880 Sanitary sewer overflow “1,001 - 5,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965680, reported Jan 6, 2018, 4:24 AM EST, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Dec 10, 2017, 4:38 PM EST not reported not placed Pump Station, Colony Rd. Sanitary sewer overflow “1,001 - 5,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965567, reported Mar 1, 2018, 10:47 AM EST, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Dec 10, 2017, 4:38 PM EST Dec 10, 2017, 7:00 PM EST Long Island Sound, CT Pump Station, Colony Rd. Sanitary sewer overflow “1,001 - 5,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965566, reported Dec 10, 2017, 5:46 PM EST, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list
Jan 1, 2017, 3:05 PM EST Jan 1, 2017, 6:00 PM EST not placed Pump Station, Colony Rd. Sanitary sewer overflow “501 - 1,000 gallons” Westport (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35964170, reported Jan 3, 2017, 10:36 AM EST, retrieved 2026-11-02 11:54 UTC · notice record below · Map
Full record (older than 180 days, so no page of its own)

This record in the archive list

History

  • Discharge events, last 12 months4Dec 2025 to Nov 2026
  • Days with a discharge, last 12 months4Dec 2025 to Nov 2026
  • Hours under advisory, last 12 months164Dec 2025 to Nov 2026; on this discharger's reports
  • 2026 season under advisory3.7%May to October; 164 h

Discharge events per month

17 events, Jan 2022 to Nov 2026. Counted from 13 verified or annual reports, 4 public notices.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Bypass, blended or other

CT DEEP dashboard records begin 2021-12-02; where CT DEEP's annual report covers a discharger's month, the annual report is counted instead. CT DEEP annual reports (Sewage Right-to-Know) cover 2021-01-01 to 2026-11-02.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports. Covered 2022-01-01 to 2026-11-02.

Show table
Discharge events per month
MonthCombined sewer overflowSanitary sewer overflowBypass, blended or otherTotalCounted fromCoverage
Jan 20220000
Feb 20220000
Mar 20220000
Apr 20220000
May 20220101Verified or annual reports
Jun 20220000
Jul 20220101Verified or annual reports
Aug 20220101Verified or annual reports
Sep 20220000
Oct 20220000
Nov 20220000
Dec 20220000
Jan 20230000
Feb 20230000
Mar 20230000
Apr 20230000
May 20230101Verified or annual reports
Jun 20230000
Jul 20230000
Aug 20230202Verified or annual reports
Sep 20230101Verified or annual reports
Oct 20230101Verified or annual reports
Nov 20230202Verified or annual reports
Dec 20230000
Jan 20240101Verified or annual reports
Feb 20240000
Mar 20240202Verified or annual reports
Apr 20240000
May 20240000
Jun 20240000
Jul 20240000
Aug 20240000
Sep 20240000
Oct 20240000
Nov 20240000
Dec 20240000
Jan 20250000
Feb 20250000
Mar 20250000
Apr 20250000
May 20250000
Jun 20250000
Jul 20250000
Aug 20250000
Sep 20250000
Oct 20250000
Nov 20250000
Dec 20250000
Jan 20260000
Feb 20260000
Mar 20260000
Apr 20260000
May 20260101Public notices (no report yet)
Jun 20260000
Jul 20260101Public notices (no report yet)
Aug 20260000
Sep 20260202Public notices (no report yet)
Oct 20260000
Nov 20260000

Hours under advisory per month

Hours this discharger's reports put a water under an advisory, by the map's red rules.

  • Advisory in effect

1 discharge events have no reported end and no ongoing status; under the status rules they set caution, not an advisory, and add no hours here. Official beach and cyanobacteria advisories are counted on water pages only. CT DEEP dashboard records begin 2021-12-02; where CT DEEP's annual report covers a discharger's month, the annual report is counted instead. CT DEEP annual reports (Sewage Right-to-Know) cover 2021-01-01 to 2026-11-02. CT DEEP's reporting archive runs 2016-07-04 to 2021-12-02.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Hours under advisory per month
MonthHours under advisoryFrom discharge windowsHours in monthCoverage
Jan 202200744
Feb 202200672
Mar 202200744
Apr 202200720
May 20226161744
Jun 202200720
Jul 20226464744
Aug 20225858744
Sep 202200720
Oct 202200744
Nov 202200720
Dec 202200744
Jan 202300744
Feb 202300672
Mar 202300744
Apr 202300720
May 20235151744
Jun 202300720
Jul 202300744
Aug 20235858744
Sep 20236262720
Oct 20235151744
Nov 20236464720
Dec 202300744
Jan 20245151744
Feb 202400696
Mar 2024107107744
Apr 202400720
May 202400744
Jun 202400720
Jul 202400744
Aug 202400744
Sep 202400720
Oct 202400744
Nov 202400720
Dec 202400744
Jan 202500744
Feb 202500672
Mar 202500744
Apr 202500720
May 202500744
Jun 202500720
Jul 202500744
Aug 202500744
Sep 202500720
Oct 202500744
Nov 202500720
Dec 202500744
Jan 202600744
Feb 202600672
Mar 202600744
Apr 202600720
May 20265151744
Jun 202600720
Jul 20261212744
Aug 20264444744
Sep 20265757720
Oct 202600744
Nov 20260032

Days with a discharge per month

A day counts when any counted discharge was under way on it (start to reported end, local time); an event with no end counts its start day.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports. Covered 2022-01-01 to 2026-11-02.

Show table
Days with a discharge per month
MonthDays with a dischargeCoverage
Jan 20220
Feb 20220
Mar 20220
Apr 20220
May 20222
Jun 20220
Jul 20221
Aug 20221
Sep 20220
Oct 20220
Nov 20220
Dec 20220
Jan 20230
Feb 20230
Mar 20230
Apr 20230
May 20231
Jun 20230
Jul 20230
Aug 20231
Sep 20231
Oct 20231
Nov 20231
Dec 20230
Jan 20241
Feb 20240
Mar 20242
Apr 20240
May 20240
Jun 20240
Jul 20240
Aug 20240
Sep 20240
Oct 20240
Nov 20240
Dec 20240
Jan 20250
Feb 20250
Mar 20250
Apr 20250
May 20250
Jun 20250
Jul 20250
Aug 20250
Sep 20250
Oct 20250
Nov 20250
Dec 20250
Jan 20260
Feb 20260
Mar 20260
Apr 20260
May 20261
Jun 20260
Jul 20261
Aug 20260
Sep 20262
Oct 20260
Nov 20260

Discharge events per year, 2016 to 2026

30 events, 2016 to 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Bypass, blended or other
  • Partly covered or sparse source

CT DEEP dashboard records begin 2021-12-02; where CT DEEP's annual report covers a discharger's month, the annual report is counted instead. CT DEEP annual reports (Sewage Right-to-Know) cover 2021-01-01 to 2026-11-02. CT DEEP's reporting archive runs 2016-07-04 to 2021-12-02.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Discharge events per year, 2016 to 2026
YearCombined sewer overflowSanitary sewer overflowBypass, blended or otherTotalCoverage
20160000Partly covered or sparse source
20170303
20180505
20190303
20200000
20210202Partly covered or sparse source
20220303
20230707
20240303
20250000
20260404

Reported volume per year

Gallons, summed from the 17 events that gave a number (13 did not).

  • Partly covered or sparse source

13 of 30 events gave no volume as a number (11 gave a range); only numbers are summed. CT DEEP's 2016-2021 archive gives volumes as ranges ("20,001 - 50,000 gallons"); they are not summed.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Reported volume per year
YearGallonsEvents with a numberEvents withoutCoverage
2016000Partly covered or sparse source
2017003
2018005
2019003
2020000
2021002Partly covered or sparse source
20222,50030
20233,58570
2024153,15030
2025000
202668,15040

Hours under advisory per year

Hours under advisory each year; 2026 to date.

  • Advisory in effect
  • Partly covered or sparse source

1 discharge events have no reported end and no ongoing status; under the status rules they set caution, not an advisory, and add no hours here. Official beach and cyanobacteria advisories are counted on water pages only.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Hours under advisory per year
YearHours under advisoryShare of the yearCoverage
201600.0%Partly covered or sparse source
20171011.2%
20182172.5%
20191051.2%
202000.0%
2021510.6%Partly covered or sparse source
20221832.1%
20232853.3%
20241581.8%
202500.0%
20261642.2%

Share of the May to October season under advisory

Share of the hours from May 1 to October 31 with an advisory in effect.

  • Advisory in effect
  • Season partly covered

Seasons only partly covered by a source: 2016 (share is of the covered hours). 1 discharge events have no reported end and no ongoing status; under the status rules they set caution, not an advisory, and add no hours here. Official beach and cyanobacteria advisories are counted on water pages only.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Share of the May to October season under advisory
SeasonShare under advisoryHours under advisoryHours coveredSeason hoursPartly covered
20160.0%02,8764,416yes
20170.0%04,4164,416
20182.5%1114,4164,416
20192.4%1054,4164,416
20200.0%04,4164,416
20211.1%514,4164,416
20224.1%1834,4164,416
20235.0%2224,4164,416
20240.0%04,4164,416
20250.0%04,4164,416
20263.7%1644,4164,416

Discharge events by calendar month, all years

Every counted discharge event, by the calendar month it began.

Months are summed over every year a source covers; the table gives the number of years behind each month.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Discharge events by calendar month, all years
MonthEventsYears of records
Jan410
Feb010
Mar210
Apr010
May310
Jun010
Jul411
Aug611
Sep411
Oct211
Nov311
Dec210

Discharge events by outfall

The 10 outfalls with the most events of 23, all years.

CT DEEP dashboard records begin 2021-12-02; where CT DEEP's annual report covers a discharger's month, the annual report is counted instead. CT DEEP annual reports (Sewage Right-to-Know) cover 2021-01-01 to 2026-11-02. CT DEEP's reporting archive runs 2016-07-04 to 2021-12-02.

Sources: CT DEEP CSO/SSO dashboard; CT DEEP Sewage Right-to-Know annual reports; CT DEEP reporting archive 2016-2021. Covered 2016-07-04 to 2026-11-02.

Show table
Discharge events by outfall
OutfallDischargerEvents
Pump Station, Colony Rd.Westport3
Manhole, 402 Greens Farms Rd, Westport, CTWESTPORT2
Sewer Main, 1790 Post Rd E, Westport, CTWESTPORT2
Manhole, 25 Crescent Road, Cross Street is Crescent Park RoadWestport2
Pump Station, 595 riverside ave. westport ct. 06880Westport2
Pump Station, 8 wilton road westport ct 06880Westport2
Manhole, 4 Blind Brook Rd S, Westport, CTWESTPORT1
Sewer Main, 9 Hillandale Rd, Westport, CTWESTPORT1
Sewer Main, 176 Hillspoint Rd, Westport, CTWESTPORT1
Sewer Main, 1460 Post Rd E, Westport, CTWESTPORT1
Other outfalls (13)13
How these charts are counted

Discharge events are counted once: where a source publishes both public notices and verified reports (MassDEP, Vermont DEC), a discharger's month with any verified report counts its verified reports only, and other months count notices. Revisions are folded into the record they revise, and EPA copies of a state report are not counted twice. Monthly and yearly totals (Maine DEP, EPA discharge monitoring reports, Portsmouth) are shown on their own and never added to the event counts. Hours under advisory follow the map's red rules. A muted band marks periods no source covers: a gap there is missing data, not a quiet month.

  • CT DEEP CSO/SSO dashboard: 2021-12-02 to now
  • CT DEEP Sewage Right-to-Know annual reports: 2021-01-01 to now
  • CT DEEP reporting archive 2016-2021: 2016-07-04 to 2021-12-02