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New York / Waters /

Red House Lake

Lake in New York, near Salamanca

Current status

Discharge or advisory reportedSource update overdue

A discharge is reported as ongoing, a post-discharge period applies, or an official advisory is listed. Open the report for its source, dates and advice. This status since . Why this status, and its source

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.

Bookmark this water page and check it before each trip · Report a missing notice or error

About this status

Why this status: Discharge or advisory reported: official advisory.

Why we use this rule: An official advisory is listed. We show it while the authority keeps it in place; an old or missing update does not mean the advisory was lifted.

Source: https://on.ny.gov/nyhabs. How long each status lasts, and why

Source: NYS DEC Harmful Algal Blooms Program (NYHABS), record d5d98c73-d08a-40bf-8236-383d0f6ce355, updated by the source Oct 30, 2026, 8:00 AM EDT, retrieved 2026-11-02 20:38 UTC · Read the original notice

Source update overdue since Nov 2, 2026, 3:38 PM EST: we have not received the expected update from NYHABS. Recent reports may be missing.

Updated .

Reports behind this status

Advice in the reports

NYS DEC Harmful Algal Blooms Program (NYHABS) · Oct 27, 2026 · Current status: sets this water's status now

“Learn how to Know it, Avoid it, Report it at https://www.dec.ny.gov/chemical/77118.html?”

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.
  • Discharge or advisory reported: to the latest update
    1 report: NYS DEC Harmful Algal Blooms Program (NYHABS) 1
    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.

A source update was overdue from Nov 2, 2026, 3:00 PM EST to the latest update.

Reported discharges over time

  • Hours with a discharge or advisory status on the Red House Lake in New York, last 12 months158Reported on the Red House Lake in New York: 0 · Arriving from outfalls upstream, 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 Red House Lake in New York39%May to October 2026; incomplete source coverageShare 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 Red House Lake in New York1Reported on the Red House Lake in New York: 1 · Arriving from outfalls upstream, 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.

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
  • No tracked source for this period
  • Incomplete source coverage
No tracked source

No tracked source covers October 2025 to September 2026.

Sources: ny-dec-habs; ny-parks-beaches. Records cover May 19, 2015 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

Sources: ny-dec-habs; ny-parks-beaches. Records cover May 19, 2015 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: 2015, 2025, 2026. The share is of the hours a source covered.

Sources: ny-dec-habs; ny-parks-beaches. Records cover May 19, 2015 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-habs: records from October 19, 2026 to the latest update
  • ny-parks-beaches: records from May 19, 2015 to September 2, 2025

Reports linked to Red House Lake

Reports linked to Red House Lake, newest first
StartEnd Sewer operator OutletTypeVolumeSourceLinks
Oct 27, 2026, 4:15 AM EDT still listed as in effect not stated Not provided Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS DEC Harmful Algal Blooms Program (NYHABS), record d5d98c73-d08a-40bf-8236-383d0f6ce355, updated by the source Oct 30, 2026, 8:00 AM EDT, retrieved 2026-11-02 20:38 UTC · Read the original notice
Aug 30, 2025 Sep 2, 2025 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2025-08-30, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 11, 2025 Aug 27, 2025 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2025-08-11, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 31, 2025 Aug 1, 2025 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2025-07-31, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 30, 2024 Sep 3, 2024 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2024-08-30, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 18, 2024 Aug 23, 2024 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2024-08-18, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 12, 2024 Aug 16, 2024 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2024-08-12, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 29, 2024 Aug 8, 2024 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2024-07-29, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jun 29, 2024 Jul 2, 2024 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2024-06-29, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 25, 2023 Aug 28, 2023 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2023-08-25, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 16, 2023 Aug 17, 2023 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2023-08-16, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 3, 2023 Aug 11, 2023 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2023-08-03, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 3, 2023 Jul 5, 2023 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2023-07-03, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Sep 3, 2022 Sep 12, 2022 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2022-09-03, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 27, 2022 Aug 30, 2022 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2022-08-27, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 14, 2022 Aug 23, 2022 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2022-08-14, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 25, 2022 Aug 1, 2022 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2022-07-25, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 18, 2021 Aug 26, 2021 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-08-18, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 4, 2021 Aug 10, 2021 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-08-04, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 1, 2021 Aug 2, 2021 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-08-01, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 29, 2021 Jul 31, 2021 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-07-29, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 26, 2021 Jul 28, 2021 not stated Allegany SP (Red House) Cyanobacteria advisory (harmful blue-green algae) volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-07-26, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 17, 2021 Jul 19, 2021 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-07-17, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Jul 13, 2021 Jul 15, 2021 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2021-07-13, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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Aug 17, 2020 Aug 19, 2020 not stated Allegany SP (Red House) Beach closure volume not reported NYS Office of Parks, Recreation and Historic Preservation (State Park beaches), record allegany-sp-red-house:red-house-lake:2020-08-17, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Read the original notice
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See it in the archive for its year

Showing the latest 25 records of 47 records. See them all with filters.

All reports in New York by year: 2026 (1 here) · 2025 (3 here) · 2024 (5 here) · 2023 (4 here) · 2022 (4 here) · 2021 (7 here) · 2020 (6 here) · 2019 (3 here) · 2018 (2 here) · 2017 (4 here) · 2016 (3 here) · 2015 (5 here)

Beaches named in these records: Allegany SP (Red House).

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.

Boat launches

Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, Open Database License). · Red House Lake on OpenBoatLaunch

Nearby waters

Sources covering this water

47 records linked to this water. Updated .