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Cyanobacteria advisory (harmful blue-green algae) reported, Jun 29, 2026

Advisory active · Rhode Island Department of Health (RIDOH) Beach Monitoring Program

Source: Rhode Island Department of Health (RIDOH) Beach Monitoring Program, record slack-town-beach:smithfield-johnston:2026-06-29, the source gives no report time, 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: 41.86566, -71.55237; 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: “Slack Town Beach (Smithfield/Johnston)”. 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.

Open on the main map

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
not reported
Detail provided by the source
Times known to the day only
Reported to the source
not given
Published
not given
Source last updated
not given
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 active
Material
not stated
Volume
volume not reported (not stated whether estimated or measured)
Volume as reported
none

Advice from Rhode Island Department of Health (RIDOH) Beach Monitoring Program

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

Source and versions

Source
Rhode Island Department of Health (RIDOH) Beach Monitoring Program
Source record number
slack-town-beach:smithfield-johnston:2026-06-29
Original notice
Read the original notice
Earlier version
None: this is the first record
Later versions
None

Record details

Record details
Record identifierri-ridoh-beaches:slack-town-beach:smithfield-johnston:2026-06-29
Source identifierri-ridoh-beaches
Source record numberslack-town-beach:smithfield-johnston:2026-06-29
Earlier versionNot provided
TypeCyanobacteria advisory (harmful blue-green algae)
Status in the reportAdvisory active
Sewer operator identifierNot provided
Sewer operatorNot provided
Federal wastewater discharge permit (NPDES)Not provided
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportSlack Town Beach (Smithfield/Johnston)
Linked watersNot provided
How this report was linked to the waternot linked to a mapped water
Latitude41.866
Longitude-71.552
Location sourcegiven in the source record
Location accuracy, in metresNot provided
StartedJun 29, 2026 (2026-06-29T00:00:00-04:00)
EndedNot provided
Detail provided by the sourceto the day only
Reported to the sourceNot provided
PublishedNot provided
Source last updatedNot provided
Last retrieved by DirtyWaterWatchNov 2, 2026, 10:55 AM EST (2026-11-02T15:55:55Z)
MaterialNot provided
Volume, in gallonsNot provided
Volume as reportedNot provided
How volume was determinednot stated whether estimated or measured
AuthorityRhode Island Department of Health (RIDOH) Beach Monitoring Program
AdviceNot provided
Advice period, in hoursNot provided
Basis of the advice periodNot provided
Original noticehttps://health.ri.gov/beaches

Original source data

{
  "sheet": "current",
  "sheet_row": 21,
  "sheet_url": "https://docs.google.com/spreadsheets/d/1KXdH37xHUPrjJSEkryquPQ2GaP-R_9Gl5NkZrUnAjjU/gviz/tq?tqx=out:csv&gid=828265472",
  "Beach": "Slack Town Beach (Cyanobacteria Advisory)",
  "City/Town": "Smithfield/Johnston",
  "Closed On": "6/29/2026",
  "Re-Opened": "",
  "Number of Days Closed": "",
  "FW or SW": "FW",
  "note": "still open in the sheet 126 days after closing; RIDOH may not have recorded the re-opening",
  "coord_join": {
    "layer": "https://services1.arcgis.com/dkWT1XL4nglP5MLP/arcgis/rest/services/RIDOHGIS_Beaches_View/FeatureServer/0",
    "how": "fuzzy name 0.80 (same town)",
    "matched": [
      {
        "name": "Slack's Pond Beach",
        "beach_id": "RI850271",
        "town": "SMITHFIELD"
      }
    ]
  },
  "water_placement": {
    "nearest_waters_m": [],
    "ambiguous": false
  }
}

Source: Rhode Island Department of Health (RIDOH) Beach Monitoring Program, record slack-town-beach:smithfield-johnston:2026-06-29, the source gives no report time, 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.