Rhode Island / Events /

Cyanobacteria advisory, Sep 14, 2026

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

Source: RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer) via ri-dem-cyano, record 61, updated by the source Oct 29, 2026, 3:49 PM EDT, retrieved 2026-11-02 11:55 UTC · notice

1. The reported outfall

Outfall reported by an operator the record does not name. Location: 41.59141, -71.27771, given in the source record.

2. Waters named in the notice

The notice names: “Lower Melville Pond”. We place it on Narragansett Bay, RI. Matched by the record's coordinates to the nearest tracked water.

point 376 m from the water

3. Modeled downstream reach

Not modeled: the reach model runs on rivers above the head of tide only.

Open on the main map

When: three different times

The time of the event, the time the source reported, published or updated it, and the time we fetched it are kept apart. Times are shown in New England time; the record keeps the original offsets.

Started

Sep 14, 2026, 9:36 AM EDT

Ended

Oct 2, 2026, 12:12 PM EDT

Precision

Known to the minute

Reported to the source

not given

Published

not given

Source last updated

Oct 29, 2026, 3:49 PM EDT

We fetched it

2026-11-02 11:55 UTC

What and how much

Type

Cyanobacteria advisory

Status in the record

Advisory lifted

Material

not stated

Volume

not reported (not stated whether estimated or measured)

Volume in the source's words

none

Advice

The record carries no advice text from RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer).

Advice window

not stated in the record; the state's window on the methods page applies

Basis

not stated

Source and revisions

Source

ri-dem-cyano

Record id at the source

61

Original notice

https://health.ri.gov/press-releases/ridoh-and-dem-lift-advisory-lo…

Revision of

none (first record)

Revised by

no later revision

{
  "OBJECTID": 61,
  "WaterbodyN": "Lower Melville Pond",
  "Town": "24",
  "SecMun": null,
  "F2024_Advis": "P",
  "AdvisoryPo": 1789392982000,
  "AdvisoryL": 1790957528000,
  "MoreInfo": "https://health.ri.gov/press-releases/ridoh-and-dem-lift-advisory-lower-melville-pond",
  "AdditionalInfo": null,
  "Town_name": "Portsmouth",
  "SecMun_name": null,
  "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"
}