DirtyWaterWatch

Connecticut / Dischargers /

Town of Stratford WPCF

BYPASS · Connecticut · Stratford

NPDES permit
CT0101036
Outfalls
none with coordinates yet
Receiving waters
Housatonic River
Tracked waters
Housatonic River, CT, Long Island Sound, CT
Events tracked
44 discharges · latest Oct 14, 2026, 5:00 PM EDT
Volume reported
120,310,370 gallons across the 32 discharges that give a volume (12 without one)

Source: discharger record from the project's research and EPA ECHO (dischargers.json); counts from the 44 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 Stratford WPCF, newest first
StartEnd Water OutfallTypeVolumeSourceLinks
Oct 14, 2026, 5:00 PM EDT not reported Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass not reported STRATFORD (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11599, the source gives no report time, retrieved 2026-11-02 11:53 UTC · notice
Sep 13, 2026, 10:30 AM EDT Sep 13, 2026, 11:30 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass “1 MGD” STRATFORD (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11446, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice
Jul 22, 2026, 5:00 PM EDT Jul 22, 2026, 8:00 PM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 3 million gal STRATFORD (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11043, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice
Mar 16, 2026, 8:00 AM EDT Mar 16, 2026, 10:30 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 1.25 million gal STRATFORD (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 10465, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Nov 6, 2024, 9:00 AM EST Nov 7, 2024, 2:00 AM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 3.3 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x21e0d071efbc, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Sep 12, 2024, 6:00 AM EDT Sep 12, 2024, 7:00 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 90 gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x74ee75cf3aad, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Aug 20, 2024, 9:00 AM EDT Aug 20, 2024, 10:00 AM EDT not placed Manhole, Huntington Rd, Stratford, CT Sanitary sewer overflow 90 gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record xa25578bf871e, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Apr 4, 2024, 12:30 AM EDT Apr 4, 2024, 7:45 PM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 4.9 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record xb754c578af8a, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Mar 23, 2024, 6:30 PM EDT Mar 24, 2024, 1:30 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 5.8 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record xe8036d0d2c19, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Mar 7, 2024, 1:30 AM EST Mar 7, 2024, 1:00 PM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 10 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x117742b97ce3, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jan 10, 2024, 2:00 AM EST Jan 10, 2024, 5:15 PM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 13 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2025) via ct-deep-annual, record x3c62bc8b9f7d, published Mar 31, 2025, 1:52 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Dec 11, 2023, 4:45 AM EST Dec 11, 2023, 10:30 AM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 6 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record x1e009824ec0e, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

May 23, 2023, 12:15 AM EDT May 23, 2023, 3:00 PM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 1.83 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record x110cd5410753, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Mar 14, 2023, 7:15 PM EDT Mar 15, 2023, 10:00 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 9 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xdb36fdaba2be, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Mar 5, 2023, 9:00 PM EST Mar 5, 2023, 9:45 PM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 297,240 gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record x74615c6258ce, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jan 26, 2023, 1:15 AM EST Jan 26, 2023, 1:00 PM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 9 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2024) via ct-deep-annual, record xa92db52e77e7, published Jan 9, 2025, 2:55 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Aug 23, 2022, 1:45 PM EDT Aug 23, 2022, 2:00 PM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 67,000 gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record x417871ef3213, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 30, 2022, 4:30 AM EDT Jul 30, 2022, 12:00 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 250,000 gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record xc7276ee41906, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Feb 7, 2022, 11:15 PM EST Feb 8, 2022, 2:15 AM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 1.13 million gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record x31debe58df1d, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jan 9, 2022, 11:00 PM EST Jan 9, 2022, 11:45 PM EST Housatonic River, CT Treatment Plant, 105 Beacon Point Rd, Stratford, CT Treatment plant bypass 425,000 gal STRATFORD (CT DEEP Sewage Right-to-Know annual report 2023) via ct-deep-annual, record xbe18abf014bc, published Jan 9, 2025, 2:54 PM EST, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Nov 18, 2021, 11:15 AM EST Nov 18, 2021, 12:00 AM EST Housatonic River, CT Treatment Plant, Birdseye street Treatment plant bypass 10,000 gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record xd759684d463e, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Nov 18, 2021, 11:15 AM EST Nov 18, 2021, 12:00 AM EST Housatonic River, CT Treatment Plant, Birdseye street Treatment plant bypass “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963107, reported Nov 18, 2021, 1:03 PM EST, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Sep 1, 2021, 11:53 PM EDT Sep 1, 2021, 11:53 PM EDT Housatonic River, CT Treatment Plant, Beacon Point Road Treatment plant bypass 7.5 million gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record xaffbfec70bf4, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Sep 1, 2021, 11:53 PM EDT not reported Housatonic River, CT Treatment Plant, Beacon Point Road Treatment plant bypass “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963872, reported Sep 2, 2021, 2:56 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 2:45 PM EDT Jul 9, 2021, 8:45 PM EDT “Bruce Brook” (not placed) Sewer Main, Stratford Ave Sanitary sewer overflow 300 gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record xecab594c3080, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 2:45 PM EDT Jul 9, 2021, 8:45 PM EDT “Bruce Brook” (not placed) Sewer Main, Stratford Ave Sanitary sewer overflow “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35964822, reported Jul 9, 2021, 5:36 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 9:55 AM EDT Jul 10, 2021, 1:00 PM EDT not placed Basement, Street addresses in comment section Sanitary sewer overflow 200 gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record xe44d667c17f4, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 9:55 AM EDT Jul 10, 2021, 1:00 AM EDT Housatonic River, CT Treatment Plant, Beacon Point Road Treatment plant bypass 20 million gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record x9e4b64b00a87, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 9:55 AM EDT Jul 10, 2021, 1:00 PM EDT Housatonic River, CT Sewer Main, Avery St Sanitary sewer overflow 300 gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record x2c6a90ebc20c, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 9:55 AM EDT Jul 10, 2021, 1:00 PM EDT not placed Basement, Street addresses in comment section Sanitary sewer overflow “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963671, reported Jul 29, 2021, 1:15 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 9:55 AM EDT Jul 10, 2021, 1:00 PM EDT Housatonic River, CT Sewer Main, Avery St Sanitary sewer overflow “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963665, reported Jul 29, 2021, 1:26 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 9, 2021, 9:55 AM EDT Jul 10, 2021, 1:00 AM EDT Housatonic River, CT Treatment Plant, Beacon Point Road Treatment plant bypass 20 million gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963270, reported Jul 9, 2021, 1:31 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 2, 2021, 12:30 AM EDT Jul 2, 2021, 1:21 AM EDT Housatonic River, CT Treatment Plant, Beacon Point Rd. Treatment plant bypass 227,500 gal Stratford (CT DEEP Sewage Right-to-Know annual report 2022) via ct-deep-annual, record x8543830963ce, published Oct 9, 2024, 12:47 PM EDT, retrieved 2026-11-02 11:53 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 2, 2021, 12:30 AM EDT Jul 2, 2021, 1:21 AM EDT Housatonic River, CT Treatment Plant, Beacon Point Rd. Treatment plant bypass 227,500 gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963375, reported Jul 2, 2021, 9:27 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 15, 2020, 11:00 AM EDT Jul 16, 2020, 12:26 PM EDT Housatonic River, CT Treatment Plant, Beacon Point Road Treatment plant bypass “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35965457, reported Jul 16, 2020, 12:38 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

May 30, 2020, 9:15 AM EDT May 30, 2020, 9:20 AM EDT not placed Treatment Plant, Birdseye st Treatment plant bypass “1,001 - 5,000 gallons” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963129, reported May 30, 2020, 11:07 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Apr 14, 2020, 12:50 PM EDT Apr 14, 2020, 2:15 PM EDT Housatonic River, CT Manhole, Main Street Sanitary sewer overflow 1,800 gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963267, reported Apr 16, 2020, 7:41 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Mar 2, 2020, 9:00 AM EST Mar 2, 2020, 11:00 AM EST Housatonic River, CT Treatment Plant, Birdseye Rd. Treatment plant bypass 830,000 gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963043, reported Mar 4, 2020, 11:42 AM EST, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Mar 2, 2020, 9:00 AM EST Mar 2, 2020, 11:00 AM EST Housatonic River, CT Treatment Plant, Beacon Point Rd Treatment plant bypass “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963042, reported Mar 2, 2020, 1:19 PM EST, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Oct 16, 2019, 11:05 PM EDT Oct 17, 2019, 1:11 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Road Treatment plant bypass 700,000 gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963086, reported Oct 18, 2019, 8:51 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Jul 23, 2019, 3:00 AM EDT Jul 23, 2019, 5:00 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd. Treatment plant bypass 833,350 gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963091, reported Jul 23, 2019, 2:14 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Oct 10, 2018, 11:18 PM EDT Oct 11, 2018, 12:01 AM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd Treatment plant bypass 735,000 gal Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963159, reported Oct 11, 2018, 2:05 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Oct 3, 2018, 5:41 AM EDT Oct 3, 2018, 6:55 AM EDT Long Island Sound, CT Treatment Plant, 105 Beacon Point Rd Treatment plant bypass “100,001 - 500,000 gallons” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963160, reported Oct 3, 2018, 10:56 AM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

Apr 16, 2018, 11:30 AM EDT Apr 16, 2018, 2:22 PM EDT Housatonic River, CT Treatment Plant, 105 Beacon Point Rd Treatment plant bypass “Undetermined” Stratford (CT DEEP reporting archive 2016-2021) via ct-deep-archive, record bypass-35963871, reported Apr 16, 2018, 2:29 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
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 months151Dec 2025 to Nov 2026; on this discharger's reports
  • 2026 season under advisory2.3%May to October; 100 h

Discharge events per month

20 events, Jan 2022 to Nov 2026. Counted from 16 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 20220011Verified or annual reports
Feb 20220011Verified or annual reports
Mar 20220000
Apr 20220000
May 20220000
Jun 20220000
Jul 20220011Verified or annual reports
Aug 20220011Verified or annual reports
Sep 20220000
Oct 20220000
Nov 20220000
Dec 20220000
Jan 20230011Verified or annual reports
Feb 20230000
Mar 20230022Verified or annual reports
Apr 20230000
May 20230011Verified or annual reports
Jun 20230000
Jul 20230000
Aug 20230000
Sep 20230000
Oct 20230000
Nov 20230000
Dec 20230011Verified or annual reports
Jan 20240011Verified or annual reports
Feb 20240000
Mar 20240022Verified or annual reports
Apr 20240011Verified or annual reports
May 20240000
Jun 20240000
Jul 20240000
Aug 20240101Verified or annual reports
Sep 20240011Verified or annual reports
Oct 20240000
Nov 20240011Verified or annual reports
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 20260011Public notices (no report yet)
Apr 20260000
May 20260000
Jun 20260000
Jul 20260011Public notices (no report yet)
Aug 20260000
Sep 20260011Public notices (no report yet)
Oct 20260011Public notices (no report yet)
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

5 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 20224949744
Feb 20225151672
Mar 202200744
Apr 202200720
May 202200744
Jun 202200720
Jul 202200744
Aug 20224848744
Sep 202200720
Oct 202200744
Nov 202200720
Dec 202200744
Jan 20236060744
Feb 202300672
Mar 2023112112744
Apr 202300720
May 20236363744
Jun 202300720
Jul 202300744
Aug 202300744
Sep 202300720
Oct 202300744
Nov 202300720
Dec 20235454744
Jan 20246363744
Feb 202400696
Mar 2024115115744
Apr 20246767720
May 202400744
Jun 202400720
Jul 202400744
Aug 20244949744
Sep 20244949720
Oct 202400744
Nov 20246565720
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 20265151744
Apr 202600720
May 202600744
Jun 202600720
Jul 20265151744
Aug 202600744
Sep 20264949720
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 20221
Feb 20222
Mar 20220
Apr 20220
May 20220
Jun 20220
Jul 20221
Aug 20221
Sep 20220
Oct 20220
Nov 20220
Dec 20220
Jan 20231
Feb 20230
Mar 20233
Apr 20230
May 20231
Jun 20230
Jul 20230
Aug 20230
Sep 20230
Oct 20230
Nov 20230
Dec 20231
Jan 20241
Feb 20240
Mar 20243
Apr 20241
May 20240
Jun 20240
Jul 20240
Aug 20241
Sep 20241
Oct 20240
Nov 20242
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 20261
Apr 20260
May 20260
Jun 20260
Jul 20261
Aug 20260
Sep 20261
Oct 20261
Nov 20260

Discharge events per year, 2016 to 2026

44 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
20170000
20180033
20190022
20200145
202106814Partly covered or sparse source
20220044
20230055
20240167
20250000
20260044

Reported volume per year

Gallons, summed from the 32 events that gave a number (12 did not).

  • Partly covered or sparse source

12 of 44 events gave no volume as a number (2 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
2017000
2018735,00012
20191,533,35020
2020831,80023
202147,965,80095Partly covered or sparse source
20221,867,00040
202326,127,24050
202437,000,18070
2025000
20264,250,00022

Hours under advisory per year

Hours under advisory each year; 2026 to date.

  • Advisory in effect
  • Partly covered or sparse source

5 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.

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Hours under advisory per year
YearHours under advisoryShare of the yearCoverage
201600.0%Partly covered or sparse source
201700.0%
20181491.7%
20191001.1%
20202212.5%
20211722.0%Partly covered or sparse source
20221481.7%
20232883.3%
20244084.6%
202500.0%
20261512.1%

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). 5 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
20182.2%984,4164,416
20192.3%1004,4164,416
20202.8%1224,4164,416
20213.9%1724,4164,416
20221.1%484,4164,416
20231.4%634,4164,416
20242.2%984,4164,416
20250.0%04,4164,416
20262.3%1004,4164,416

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
Jan310
Feb110
Mar710
Apr310
May210
Jun010
Jul1411
Aug211
Sep411
Oct411
Nov311
Dec110

Discharge events by outfall

The 10 outfalls with the most events of 15, 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
Treatment Plant, 105 Beacon Point Rd, Stratford, CTSTRATFORD19
Treatment Plant, Beacon Point RoadStratford5
Treatment Plant, 105 Beacon Point RdStratford3
Treatment Plant, Birdseye streetStratford2
Sewer Main, Stratford AveStratford2
Basement, Street addresses in comment sectionStratford2
Sewer Main, Avery StStratford2
Treatment Plant, Beacon Point Rd.Stratford2
Manhole, Huntington Rd, Stratford, CTSTRATFORD1
Treatment Plant, Birdseye stStratford1
Other outfalls (5)5
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