Reports /
Cyanobacteria advisory (harmful blue-green algae) reported, Aug 7, 2026
Advisory lifted · RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer)
Source: RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer), record 18, updated by the source Nov 2, 2026, 8:35 AM EST, retrieved 2026-11-02 15:55 UTC · Read the original notice
Current status from this report
This report does not set a map status as of Nov 2, 2026, 11:21 AM EST. Check its dates and the status rules.
A report is not a test of the water. See how we assign statuses.
Read the original notice · Report an error
1. Reported wastewater outlet
Operator named in the record: not named. Outlet: not stated. Location: 41.77436, -71.44665; 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: “Blackamore Pond”. 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.
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.
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
- Ended
- Detail provided by the source
- Times known to the minute
- Reported to the source
- not given
- Published
- not given
- Source last updated
- Last retrieved by DirtyWaterWatch
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, Aug 7, 2026, 11:19 AM EDT to Oct 27, 2026, 3:36 PM 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
- 18
- Original notice
- Read the original notice
- Earlier version
- None: this is the first record
- Later versions
- None
Record details
| Record identifier | ri-dem-cyano:18 |
|---|---|
| Source identifier | ri-dem-cyano |
| Source record number | 18 |
| Earlier version | Not provided |
| Type | Cyanobacteria advisory (harmful blue-green algae) |
| Status in the report | Advisory lifted |
| Sewer operator identifier | Not provided |
| Sewer operator | Not provided |
| Federal wastewater discharge permit (NPDES) | Not provided |
| Outlet number | Not provided |
| Outlet name | Not provided |
| Water named in the report | Blackamore Pond |
| Linked waters | Not provided |
| How this report was linked to the water | not linked to a mapped water |
| Latitude | 41.774 |
| Longitude | -71.447 |
| Location source | given in the source record |
| Location accuracy, in metres | Not provided |
| Started | Aug 7, 2026, 11:19 AM EDT (2026-08-07T11:19:33-04:00) |
| Ended | Oct 27, 2026, 3:36 PM EDT (2026-10-27T15:36:04-04:00) |
| Detail provided by the source | to the minute |
| Reported to the source | Not provided |
| Published | Not provided |
| Source last updated | Nov 2, 2026, 8:35 AM EST (2026-11-02T08:35:36-05:00) |
| Last retrieved by DirtyWaterWatch | Nov 2, 2026, 10:55 AM EST (2026-11-02T15:55:01Z) |
| Material | Not provided |
| Volume, in gallons | Not provided |
| Volume as reported | Not provided |
| How volume was determined | not stated whether estimated or measured |
| Authority | RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer) |
| Advice | Not provided |
| Advice period, in hours | Not provided |
| Basis of the advice period | Not provided |
| Original notice | https://health.ri.gov/press-releases/ridoh-and-dem-lift-advisory-blackamore-pond |
Original source data
{
"OBJECTID": 18,
"WaterbodyN": "Blackamore Pond",
"Town": "Cranston",
"SecMun": null,
"F2024_Advis": "P",
"AdvisoryPo": 1786115973000,
"AdvisoryL": 1793129764000,
"MoreInfo": "https://health.ri.gov/press-releases/ridoh-and-dem-lift-advisory-blackamore-pond",
"AdditionalInfo": null,
"Town_name": "Cranston",
"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"
} Source: RIDEM and RIDOH cyanobacteria advisories (RIDEM advisories layer), record 18, updated by the source Nov 2, 2026, 8:35 AM EST, retrieved 2026-11-02 15:55 UTC · Read the original notice
Staff names, email addresses and phone numbers are removed from source data before it is stored.