North Carolina / Reports /

Cyanobacteria advisory (harmful blue-green algae) reported, Aug 22, 2026

Not stated by the source · NC DEQ Division of Water Resources (fish kill and algal bloom reports)

Source: NC DEQ Division of Water Resources (fish kill and algal bloom reports) via NC DEQ DWR Fish Kill and Algal Bloom Incidents (North_Carolina_Fish_Kills_and_Algal_Blooms_Public_Reports), record AB-202608291916, the source gives no report time, retrieved 2026-11-05 01:08 UTC · Read the original notice

Read the original notice · Report an error

1. Where the advisory applies

Issued by: NC DEQ Division of Water Resources (fish kill and algal bloom reports). Location: 35.93300, -78.96300; location source: given in the source record, accurate to about 150 metres.

2. Waters named in the notice

The notice names: “Lake Matthews”. Not linked to a mapped water.

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

Aug 22, 2026, 7:12 PM EDT

Ended

not reported

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-05 01:08 UTC

What was reported

Type

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

Status in the record

Not stated by the source

Advice from NC DEQ Division of Water Resources (fish kill and algal bloom reports)

“NCDEQ advises the public to avoid contact with discolored water that could indicate the presence of an algal bloom.”

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

• Caution a water not yet on the map: Advisory with no reported status, issued recently, Aug 22, 2026, 7:12 PM EDT to Aug 29, 2026, 7:12 PM EDT

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-05 01:25 UTC.

Source and versions

Source

NC DEQ DWR Fish Kill and Algal Bloom Incidents (North_Carolina_Fish_Kills_and_Algal_Blooms_Public_Reports)

Source record number

AB-202608291916

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "objectid": 200,
  "globalid": "b23af6b7-23a9-41e1-8cf1-319199676256",
  "incident_id": "AB-202608291916",
  "report_type": "Algal Bloom",
  "fish_kill_number": null,
  "observation_date": 1787440320000,
  "area_impacted": 10,
  "area_units": "Acres",
  "regional_office": "RRO",
  "county": "Durham",
  "waterbody": "Lake Matthews",
  "investigation_status": "Completed",
  "final_investigation_comments": "Thank you for submitting the report. From the photo, it appears to be aquatic plants or filamentous algae, neither is toxic. Since the pond seems to be relatively restricted with private access, due to resource limitation, DWR didn't performed site investigation. To learn more about filamentous green algae: https://www.deq.nc.gov/water-quality/environmental-sciences/fishkill/algae/filamentous-greens/download.\nNCDEQ advises the public to avoid contact with discolored water that could indicate the presence of an algal bloom.  The N.C. Department of Health and Human Services Division of Public Health (DPH) routinely encourages the public to avoid contact with waters with large accumulations of algae and to prevent children and pets from swimming or ingesting water in an algal bloom. Remember: When in doubt, stay out.   ",
  "lab_id": null
}