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Sanitary sewer overflow (SSO) reported — WSSC, Sep 18, 2026

Ended (as reported) · WSSC

Source: WSSC via MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), record mdc021199-20260918T1145-2421-westiminster-dr, updated by the source Nov 2, 2026, 10:55 AM EST, retrieved 2026-11-03 02:31 UTC · Read the original notice

Read the original notice · Report an error

1. Reported wastewater outlet

Operator named in the record: WSSC. Outlet: “2421 Westiminster Drive”. Location: not given in the report or in the outlet records.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names: “Northwest Branch”. 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.

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

Sep 18, 2026, 11:45 AM EDT

Ended

Sep 18, 2026, 11:46 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

Nov 2, 2026, 10:55 AM EST

Last retrieved by DirtyWaterWatch

2026-11-03 02:31 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

not stated

Volume

5 gallons (not stated whether estimated or measured)

Volume as reported

“5 gallons”

Advice from WSSC

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

MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u)

Source record number

mdc021199-20260918T1145-2421-westiminster-dr

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "row": {
    "overflow_type": "SSO",
    "facility_collection_system": "Blue Plains WWTP Collection System - WSSC (Mo. Co.)",
    "npdes_no": "MDC021199",
    "start_date": "09/18/2026",
    "start_time": "11:45:00",
    "duration_day": "0",
    "duration_hour": "0",
    "duration_minute": "1",
    "overflow_address": "2421 Westiminster Drive",
    "zip": "20832",
    "owner_name": "WSSC",
    "discharge_volume": "5",
    "overflow_cause": "Grease and wipes.",
    "receiving_water": "Northwest Branch",
    "county": "Montgomery",
    "penalty_id": "",
    "overflow_latitude": "",
    "overflow_longitude": "",
    "id": "77"
  },
  "_ended_at_basis": "start + duration_day/hour/minute",
  "_coords": "no coordinates",
  "_water": {
    "why_none": "no Maryland water record matched the name"
  },
  "_discharger_basis": "permit/system id MDC021199",
  "_first_seen_at": "2026-11-03T02:28:49Z"
}