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Sanitary sewer overflow (SSO) reported — Humboldt CSD, Oct 28, 2026

Ended (as reported) · California State Water Resources Control Board (CIWQS Sanitary Sewer System Database)

Source: California State Water Resources Control Board (CIWQS Sanitary Sewer System Database) via State Water Board CIWQS Sanitary Sewer System spill data: Cat1-2-3-Spills.txt (nightly flat file), record 908797, reported Oct 28, 2026, 3:58 PM PDT, retrieved 2026-11-05 15:08 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: Humboldt CSD (federal wastewater discharge permit, NPDES, 1SSO11419). Outlet: “Buhne and Crab - King Salmon, CA”. Location: 40.73938, -124.21932; 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: “Humboldt Bay/ Pacific ocean”. DirtyWaterWatch links this report to Humboldt Bay, CA, Pacific Ocean, CA. Match basis: the water named in the report.

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

Oct 28, 2026, 1:45 PM PDT

Ended

Oct 28, 2026, 2:15 PM PDT

Detail provided by the source

Times known to the minute

Reported to the source

Oct 28, 2026, 3:58 PM PDT

Published

not given

Source last updated

Nov 3, 2026, 12:00 AM PST

Last retrieved by DirtyWaterWatch

2026-11-05 15:08 UTC

What and how much

Type

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Status in the record

Ended (as reported)

Material

“untreated sewage”

Volume

45 gallons (estimated)

Volume as reported

“45 gallons spilled (estimated total leaving the sewer system); 25 gallons reached surface water; 20 gallons recovered”

Advice from California State Water Resources Control Board (CIWQS Sanitary Sewer System Database)

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 Humboldt Bay: Discharge reported ongoing, Oct 28, 2026, 1:45 PM PDT to Oct 28, 2026, 2:15 PM PDT
• Caution Humboldt Bay: Within the caution period after the reported end, Oct 28, 2026, 2:15 PM PDT to Oct 31, 2026, 2:15 PM PDT
• Discharge or advisory reported Pacific Ocean: Discharge reported ongoing, Oct 28, 2026, 1:45 PM PDT to Oct 28, 2026, 2:15 PM PDT
• Caution Pacific Ocean: Within the caution period after the reported end, Oct 28, 2026, 2:15 PM PDT to Oct 31, 2026, 2:15 PM PDT

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-06 09:03 UTC.

Source and versions

Source

State Water Board CIWQS Sanitary Sewer System spill data: Cat1-2-3-Spills.txt (nightly flat file)

Source record number

908797

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "region": "1",
  "wdid": "1SSO11419",
  "enrollee_status": "Active",
  "system_name": "Humboldt CSD CS",
  "agency_name": "Humboldt CSD",
  "spill_event_id": "908797",
  "version": "1.1",
  "spill_status": "Certified",
  "draft_submitted_on": null,
  "first_certified_on": "03-NOV-26",
  "final_certified_on": "03-NOV-26",
  "spill_type": "Category 1 Spill",
  "location_name": "Buhne and Crab - King Salmon, CA",
  "enrollee_notified_at": "10/28/2026 13:45",
  "crew_arrival_at": "10/28/2026 13:00",
  "start_at": "10/28/2026 13:45",
  "caloes_notified_at": "10/28/2026 15:58",
  "caloes_control_number": "26-5594",
  "technical_report_on": null,
  "lat": "40.73938",
  "lon": "-124.219318",
  "appearance_points": "Manhole",
  "volume_total_gal": "45",
  "reached_drainage_system": "N",
  "volume_recovered_from_drainage_gal": null,
  "volume_left_in_drainage_gal": null,
  "volume_to_surface_water_gal": "25",
  "volume_recovered_gal": "20",
  "destinations": "Surface Water",
  "destination_points_given": "Y",
  "end_at": "10/28/2026 14:15",
  "causes": "Debris-General; Flow Exceeded Capacity (Separate Collection System Only)",
  "failure_location": "Manhole; Pump Station - Mechanical",
  "storm_event": "N",
  "response_completed_at": "10/28/2026 16:05",
  "receiving_water": "Humboldt Bay/ Pacific ocean",
  "receiving_water_type": "Ocean",
  "public_access_impact": "Restricted Public Access",
  "closing_entity": "Department of Public Health",
  "days_closed_or_restricted": "0",
  "within_1000_ft_of_intake": "N",
  "samples_collected": "N",
  "spill_category": "1",
  "reached_water": true,
  "destination_points": [
    {
      "lat": 40.739,
      "lon": -124.219
    }
  ]
}