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Sanitary sewer overflow (SSO) reported — Los Angeles Cnty DPW, Oct 17, 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 908764, reported Oct 29, 2026, 12:00 AM 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: Los Angeles Cnty DPW (federal wastewater discharge permit, NPDES, 4SSO11365). Outlet: “1861-0140 ([house number removed] S. Eastern Ave, Los Angeles, CA) Unincorporated County Area”. Location: 34.01865, -118.17398; 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: “Los Angeles River”. DirtyWaterWatch links this report to Los Angeles River, CA. Match basis: the water named in the report.

3. Estimated downstream stretch

No downstream estimate is available for this report.

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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 17, 2026, 12:08 PM PDT

Ended

Oct 17, 2026, 3:15 PM PDT

Detail provided by the source

Times known to the minute

Reported to the source

Oct 29, 2026, 12:00 AM PDT

Published

not given

Source last updated

Oct 30, 2026, 12:00 AM PDT

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

200 gallons (estimated)

Volume as reported

“200 gallons spilled (estimated total leaving the sewer system); 50 gallons reached surface water; 150 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 Los Angeles River: Discharge reported ongoing, Oct 17, 2026, 12:08 PM PDT to Oct 17, 2026, 3:15 PM PDT
• Caution Los Angeles River: Within the caution period after the reported end, Oct 17, 2026, 3:15 PM PDT to Oct 20, 2026, 3:15 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

908764

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "region": "4",
  "wdid": "4SSO11365",
  "enrollee_status": "Active",
  "system_name": "Unincorporated County Area CSMD South/County Sanitation District CS",
  "agency_name": "Los Angeles Cnty DPW",
  "spill_event_id": "908764",
  "version": "1.4",
  "spill_status": "Certified",
  "draft_submitted_on": "29-OCT-26",
  "first_certified_on": "30-OCT-26",
  "final_certified_on": "30-OCT-26",
  "spill_type": "Category 1 Spill",
  "location_name": "1861-0140 ([house number removed] S. Eastern Ave, Los Angeles, CA) Unincorporated County Area",
  "enrollee_notified_at": "10/17/2026 12:32",
  "crew_arrival_at": "10/17/2026 15:00",
  "start_at": "10/17/2026 12:08",
  "caloes_notified_at": null,
  "caloes_control_number": null,
  "technical_report_on": null,
  "lat": "34.01865",
  "lon": "-118.17398",
  "appearance_points": "Manhole",
  "volume_total_gal": "200",
  "reached_drainage_system": "Y",
  "volume_recovered_from_drainage_gal": "150",
  "volume_left_in_drainage_gal": "50",
  "volume_to_surface_water_gal": "50",
  "volume_recovered_gal": "150",
  "destinations": "Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)",
  "destination_points_given": "Y",
  "end_at": "10/17/2026 15:15",
  "causes": "Fats, Oil and Grease (FOG)",
  "failure_location": "Gravity Mainline",
  "storm_event": "N",
  "response_completed_at": "10/17/2026 16:45",
  "receiving_water": "Los Angeles River",
  "receiving_water_type": "River",
  "public_access_impact": "Other (specify below)",
  "closing_entity": "N/A",
  "days_closed_or_restricted": "0",
  "within_1000_ft_of_intake": "N",
  "samples_collected": "N",
  "spill_category": "1",
  "reached_water": true,
  "destination_points": [
    {
      "lat": 34.019,
      "lon": -118.174
    },
    {
      "lat": 34.017,
      "lon": -118.174
    }
  ]
}