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Cyanobacteria advisory (harmful blue-green algae) reported, Jul 28, 2026

Advisory lifted · RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer)

Source: RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer), record 53, updated by the source Nov 2, 2026, 8:35 AM EST, retrieved 2026-11-02 15:55 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: not named. Outlet: not stated. Location: 41.87314, -71.46667; location source: given in the source record.

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

2. Waters named in the notice

The notice names: “Wenscott Reservoir”. Not linked to a mapped water.

3. Estimated downstream stretch

We estimate routes only on rivers before they become tidal. We do not estimate routes through tidal water or lakes.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started

Jul 28, 2026, 12:48 PM EDT

Ended

Aug 20, 2026, 8:56 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

Nov 2, 2026, 8:35 AM EST

Last retrieved by DirtyWaterWatch

2026-11-02 15:55 UTC

What and how much

Type

Cyanobacteria (harmful blue-green algae) can make water unfit for contact; the issuing authority decides when its advisory ends.

Status in the record

Advisory lifted

Material

not stated

Volume

volume not reported (not stated whether estimated or measured)

Volume as reported

none

Advice from RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer)

This report includes no advice. Check current local health notices.

Advice period

This report does not state a period. See the rule DirtyWaterWatch applies and its source.

Basis

not stated

Status history from this report

• Discharge or advisory reported a water not yet on the map: Official advisory in effect, Jul 28, 2026, 12:48 PM EDT to Aug 20, 2026, 8:56 AM EDT

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-02 16:21 UTC.

Source and versions

Source

RIDEM advisories layer

Source record number

53

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "OBJECTID": 53,
  "WaterbodyN": "Wenscott Reservoir",
  "Town": "21",
  "SecMun": "26",
  "F2024_Advis": "P",
  "AdvisoryPo": 1785257286000,
  "AdvisoryL": 1787230579000,
  "MoreInfo": "https://dem.ri.gov/press-releases/ridoh-and-dem-lift-advisory-wenscott-reservoir",
  "AdditionalInfo": null,
  "Town_name": "North Providence",
  "SecMun_name": "Smithfield",
  "layer_url": "https://services1.arcgis.com/HAt3zp2GOzn12Lxk/arcgis/rest/services/Cyanobacteria_Advisories_WFL1/FeatureServer/0",
  "water_placement": null,
  "time_note": "layer timestamps as entered by RIDEM; may differ from the press release time"
}