DirtyWaterWatch Public waters. Public record.

New York / Waters /

Niagara River

River in New York, past Ferry Village, Grand Island, Kenmore, Lewiston, North Tonawanda, Stella Niagara and Youngstown

Current status

No current status shown

No current status is assigned to this water outline. Check the water page for reports and any estimated downstream stretches. Why this status, and its source

This badge describes the water outline. Check the downstream stretches on the map and below for discharge statuses.

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.

Square boat markers mark boat launches listed by OpenBoatLaunch.

Get alerts from Buffalo Sewer Authority (BSA) Bird Island WWTP · Bookmark this water page and check it before each trip · Report a missing notice or error

About this status

Why this status: No current status: no report we track sets a status on this water outline now.

How long each status lasts, and why

Sources checked: NY DEC Sewage Pollution Right to Know (last successful check 2026-11-02 21:20 UTC); State Park beaches (last successful check 2026-11-02 21:20 UTC). Status by DirtyWaterWatch, updated 2026-11-02 21:26 UTC.

No status does not mean the water is safe. Follow posted signs and local health advice.

Updated .

Estimated downstream stretches on Niagara River

No downstream stretch has a current status here as of Nov 2, 2026, 4:26 PM EST. Check the reports below.

The last 90 days

Last 90 days, hour by hour. Red: discharge or advisory reported. Amber: caution. Hatched amber: end not confirmed. Grey: no current status on the water outline. Purple hatching: source update overdue.
  • End not confirmed: to
    1 report: Buffalo Sewer Authority 1
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    2 reports: Buffalo Sewer Authority 1, Niagara Falls Water Board 1
    Show records

    The records are also in the report table on this page.

  • End not confirmed: to
    2 reports: Buffalo Sewer Authority 2
    Show records

    The records are also in the report table on this page.

  • Caution: to
    2 reports: Buffalo Sewer Authority 2
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    1 report: Buffalo Sewer Authority 1
    Show records

    The records are also in the report table on this page.

  • Caution: to
    4 reports: Buffalo Sewer Authority 3, Niagara Falls Water Board 1
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    11 reports: Buffalo Sewer Authority 6, Niagara Falls Water Board 5
    Show records

    The records are also in the report table on this page.

Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-02 21:26 UTC.

Reported discharges over time

  • Discharges affecting the Niagara River in New York, last 12 months9898 affecting this stretch: 98 reported in New York, none arriving from upstreamDecember 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once. Arriving discharges are estimated from modeled downstream reaches.
  • Days with a discharge affecting the Niagara River in New York, last 12 months115Reported on the Niagara River in New York: 115 · Arriving from outfalls upstream in New York, estimated: 0December 2025 to November 2026A day counts once however many discharges were under way on it. Verified reports where available, else notices; revisions and duplicates counted once.
  • Hours with a discharge or advisory status on the Niagara River in New York, last 12 months3,291Reported on the Niagara River in New York: 3,291 · Arriving from outfalls upstream in New York, estimated: 0December 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 on the Niagara River in New York41%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.
  • Records behind the last-90-days strip for the Niagara River in New York14Reported on the Niagara River in New York: 14 · Arriving from outfalls upstream in New York, estimated: 0last 90 daysEvery distinct record the strip lists for its red, yellow and unresolved hours, notices and unresolved reports included; counted as the strip counts them.

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater. Outfall: a pipe or outlet where wastewater enters a water body.

Reported discharges per month

105 reported discharges, January 2022 to November 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Treatment bypass, blended or other

Source: ny-dec-sprtk. Records cover January 1, 2022 to November 2, 2026.

Show table

Hours with a discharge or advisory status per month

Hours when this water had a discharge or advisory status under DirtyWaterWatch rules.

  • Discharge or advisory reported

3 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.

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table

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.

Source: ny-dec-sprtk. Records cover January 1, 2022 to November 2, 2026.

Show table

Reported discharges per year, 2021 to 2026

106 reported discharges, 2021 to 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Treatment bypass, blended or other
  • Incomplete source coverage
Limited records

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table

Reported volume per year

Gallons (axis: K thousand, M million), summed from the 87 reports that gave a volume as a number (19 did not).

  • Incomplete source coverage
Limited records

19 of 106 discharge reports gave no volume as a number (1 gave a range); only numbers are summed.

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table

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
Limited records

3 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.

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table

Share of the May to October season with a discharge or advisory status

Share of the hours from May 1 to October 31 with a discharge or advisory status under DirtyWaterWatch rules.

  • Discharge or advisory reported
  • Season with incomplete source coverage

Seasons with incomplete source coverage: 2021. The share is of the hours a source covered. 3 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.

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table

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.

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table

Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 10 of 14, all years. Counts depend on reporting coverage and do not measure legal compliance or harm.

Source: ny-dec-sprtk. Records cover August 11, 2021 to November 2, 2026.

Show table
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.

  • ny-dec-sprtk: records from August 11, 2021 to the latest update

Reports linked to Niagara River

Reports linked to Niagara River, newest first
StartEnd Sewer operator OutletTypeVolumeSourceLinks
Aug 31, 2026, 10:50 AM EDT ongoing (as reported) Buffalo Sewer Authority -Bird Island Outfall at base of Black Rock Harbor Road Combined sewer overflow (CSO) “1229 Gallons per Minute Estimated” Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2713733746958973, reported Aug 31, 2026, 12:58 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Buffalo Sewer Authority -Bird Island, Aug 31, 2026, 10:50 AM EDT · Map
Aug 31, 2026, 9:45 AM EDT Aug 31, 2026, 1:45 PM EDT Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO) 659,645 gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2709060822664450, reported Aug 31, 2026, 1:44 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 31, 2026, 9:45 AM EDT · Map
Aug 31, 2026, 9:45 AM EDT ongoing (as reported) Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO)Earlier version 2 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2712771674357293, reported Aug 31, 2026, 9:58 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 31, 2026, 9:45 AM EDT · Map
Aug 27, 2026, 12:46 PM EDT Aug 27, 2026, 12:49 PM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Sanitary sewer overflow (SSO) “less than .1 mgd Gallons Estimated” Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2709404419944422, reported Aug 27, 2026, 2:40 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Sanitary sewer overflow (SSO), Buffalo Sewer Authority -Bird Island, Aug 27, 2026, 12:46 PM EDT · Map
Aug 23, 2026, 5:51 AM EDT Aug 23, 2026, 6:17 AM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Treatment bypass “10000 Gallons per Minute Estimated” Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2695626164916007, reported Aug 25, 2026, 2:26 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Treatment bypass, Buffalo Sewer Authority -Bird Island, Aug 23, 2026, 5:51 AM EDT · Map
Aug 23, 2026, 5:51 AM EDT Aug 23, 2026, 6:17 AM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Treatment bypassEarlier version 1 gallon Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2693770739076576, reported Aug 25, 2026, 2:09 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Treatment bypass, Buffalo Sewer Authority -Bird Island, Aug 23, 2026, 5:51 AM EDT · Map
Aug 23, 2026, 4:40 AM EDT Aug 23, 2026, 4:54 AM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Treatment bypass “10000 Gallons per Minute Estimated” Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2695626164916016, reported Aug 25, 2026, 2:27 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Treatment bypass, Buffalo Sewer Authority -Bird Island, Aug 23, 2026, 4:40 AM EDT · Map
Aug 23, 2026, 4:40 AM EDT Aug 23, 2026, 4:54 AM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Treatment bypassEarlier version 1 gallon Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2700196010158448, reported Aug 25, 2026, 2:06 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Treatment bypass, Buffalo Sewer Authority -Bird Island, Aug 23, 2026, 4:40 AM EDT · Map
Aug 22, 2026, 6:15 PM EDT Aug 24, 2026, 2:30 AM EDT Niagara Falls (C) WWTP Pump station Combined sewer overflow (CSO) 26.64 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2691743514494732, reported Aug 24, 2026, 7:34 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 22, 2026, 6:15 PM EDT · Map
Aug 22, 2026, 6:15 PM EDT ongoing (as reported) Niagara Falls (C) WWTP Pump station Combined sewer overflow (CSO)Earlier version 13.98 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2700196010101523, reported Aug 23, 2026, 5:57 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 22, 2026, 6:15 PM EDT · Map
Aug 22, 2026, 6:15 PM EDT ongoing (as reported) Niagara Falls (C) WWTP Pump station Combined sewer overflow (CSO)Earlier version 5 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2691743514447514, reported Aug 22, 2026, 6:28 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 22, 2026, 6:15 PM EDT · Map
Aug 19, 2026, 6:15 AM EDT Aug 19, 2026, 8:00 PM EDT Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO) 13.21 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2684390530500582, reported Aug 19, 2026, 9:39 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 19, 2026, 6:15 AM EDT · Map
Aug 19, 2026, 6:15 AM EDT ongoing (as reported) Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO)Earlier version 5 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2684459249993966, reported Aug 19, 2026, 5:33 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 19, 2026, 6:15 AM EDT · Map
Aug 8, 2026, 8:54 AM EDT ongoing (as reported) Buffalo Sewer Authority -Bird Island Outfall at base of Black Rock Harbor Road Combined sewer overflow (CSO) 37.71 million gallons Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2666523466495169, reported Aug 8, 2026, 10:15 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Buffalo Sewer Authority -Bird Island, Aug 8, 2026, 8:54 AM EDT · Map
Aug 8, 2026, 8:46 AM EDT Aug 8, 2026, 8:50 AM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Treatment bypass “10000 Gallons per Minute Estimated” Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2693770739076885, reported Aug 25, 2026, 2:22 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Treatment bypass, Buffalo Sewer Authority -Bird Island, Aug 8, 2026, 8:46 AM EDT · Map
Aug 7, 2026, 10:00 AM EDT Aug 7, 2026, 2:00 PM EDT Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO) 357,568 gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2666214228832549, reported Aug 7, 2026, 3:31 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 7, 2026, 10:00 AM EDT · Map
Aug 7, 2026, 10:00 AM EDT ongoing (as reported) Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO)Earlier version 5 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2666523466463709, reported Aug 7, 2026, 10:45 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 7, 2026, 10:00 AM EDT · Map
Aug 6, 2026, 1:33 PM EDT Aug 25, 2026, 1:38 PM EDT Buffalo Sewer Authority -Bird Island Permitted outfall Treatment bypass 10,000 gallons Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2700196010158769, reported Aug 25, 2026, 2:16 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Treatment bypass, Buffalo Sewer Authority -Bird Island, Aug 6, 2026, 1:33 PM EDT · Map
Aug 5, 2026, 7:30 PM EDT Aug 6, 2026, 12:00 PM EDT Niagara Falls (C) WWTP Intersection of Depot and Whirlpool Combined sewer overflow (CSO) “600 Gallons per Minute Estimated” Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2666523466435936, reported Aug 6, 2026, 1:46 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 5, 2026, 7:30 PM EDT · Map
Aug 3, 2026, 5:00 PM EDT Aug 3, 2026, 7:00 PM EDT Niagara Falls (C) WWTP CorneerS86th and W Rivershore Combined sewer overflow (CSO) “600 Gallons per Minute Estimated” Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2657143257963210, reported Aug 4, 2026, 11:45 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 3, 2026, 5:00 PM EDT · Map
Aug 2, 2026, 11:00 AM EDT ongoing (as reported) Buffalo Sewer Authority -Bird Island Outfall at base of Black Rock Harbor Road Combined sewer overflow (CSO) 1,694 gallons Buffalo Sewer Authority -Bird Island (NY DEC Sewage Pollution Right to Know), record 2656181185235117, reported Aug 2, 2026, 8:44 PM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Buffalo Sewer Authority -Bird Island, Aug 2, 2026, 11:00 AM EDT · Map
Aug 2, 2026, 7:45 AM EDT Aug 5, 2026, 8:00 AM EDT Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO) 124.13 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2652607772523376, reported Aug 5, 2026, 9:01 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 2, 2026, 7:45 AM EDT · Map
Aug 2, 2026, 7:45 AM EDT ongoing (as reported) Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO)Earlier version 122.68 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2662194139380740, reported Aug 4, 2026, 11:54 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 2, 2026, 7:45 AM EDT · Map
Aug 2, 2026, 7:45 AM EDT ongoing (as reported) Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO)Earlier version 110 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2657658653993336, reported Aug 3, 2026, 7:25 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 2, 2026, 7:45 AM EDT · Map
Aug 2, 2026, 7:45 AM EDT ongoing (as reported) Niagara Falls (C) WWTP 006 GPS CSO 006 Combined sewer overflow (CSO)Earlier version 5 million gallons Niagara Falls (C) WWTP (NY DEC Sewage Pollution Right to Know), record 2655390911234661, reported Aug 2, 2026, 8:04 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice Read report: Combined sewer overflow (CSO), Niagara Falls (C) WWTP, Aug 2, 2026, 7:45 AM EDT · Map

Showing the latest 25 records of 215 records. See them all with filters.

All reports in New York by year: 2026 (187 here) · 2025 (12 here) · 2024 (3 here) · 2022 (1 here) · 2021 (3 here) · 2020 (2 here) · 2019 (3 here) · 2018 (3 here) · 2016 (1 here)

Beaches named in these records: Beaver Island SP.

Wastewater outlets on this water

Outfall: a pipe or outlet where wastewater enters a water body.

No wastewater outlet in our records is linked to this water.

Sewer operators listed for this water: Buffalo Sewer Authority (BSA) Bird Island WWTP, Niagara Falls Water Board, Town of Grand Island SD #2 WWTP.

Boat launches

Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, Open Database License). · Niagara River on OpenBoatLaunch

Nearby waters

Sources covering this water

215 records linked to this water. Updated .