Maryland / Reports /

Combined sewer overflow (CSO) reported — Mayor and City Council of Cumberland, May 20, 2026

Ended (as reported) · Mayor and City Council of Cumberland

Source: Mayor and City Council of Cumberland via MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), record md0021598-20260520T1213-walnut-pl-mill-race-oldtown-rd-bedford-st-valley-st-avirett-st, updated by the source Nov 2, 2026, 10:55 AM EST, retrieved 2026-11-03 02:31 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: Mayor and City Council of Cumberland (federal wastewater discharge permit, NPDES, MD0021598). Outlet: “Walnut Place, Mill Race, Oldtown Road, Bedford Street, Valley Street, Avirett Street”. 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: “Potomac River & Wills Creek”. DirtyWaterWatch links this report to North Branch Potomac River, MD. 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

May 20, 2026, 12:13 PM EDT

Ended

May 20, 2026, 3:29 PM 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

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.

Status in the record

Ended (as reported)

Material

not stated

Volume

138,700 gallons (not stated whether estimated or measured)

Volume as reported

“138700 gallons”

Advice from Mayor and City Council of Cumberland

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

md0021598-20260520T1213-walnut-pl-mill-race-oldtown-rd-bedford-st-valley-st-avirett-st

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "row": {
    "overflow_type": "CSO",
    "facility_collection_system": "John J. DiFonzo (Cumberland) WRF & Collection System",
    "npdes_no": "MD0021598",
    "start_date": "05/20/2026",
    "start_time": "12:13:00",
    "duration_day": "0",
    "duration_hour": "3",
    "duration_minute": "16",
    "overflow_address": "Walnut Place, Mill Race, Oldtown Road, Bedford Street, Valley Street, Avirett Street",
    "zip": "21502",
    "owner_name": "Mayor and City Council of Cumberland",
    "discharge_volume": "138700",
    "overflow_cause": "Rain",
    "receiving_water": "Potomac River & Wills Creek",
    "county": "Allegany",
    "penalty_id": "",
    "overflow_latitude": "",
    "overflow_longitude": "",
    "id": "389"
  },
  "_ended_at_basis": "start + duration_day/hour/minute",
  "_coords": "no coordinates",
  "_water": {
    "name_notes": [
      "'Potomac River' in Allegany/Garrett County read as the North Branch Potomac River (potomac-river-md begins at the confluence below Cumberland)"
    ],
    "via": "receiving water name within Maryland and county Allegany"
  },
  "_discharger_basis": "permit/system id MD0021598",
  "_first_seen_at": "2026-11-03T02:28:49Z"
}