Maryland / Sewer operators /

Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants)

Sewer utility · Maryland · Dundalk, Essex, Towson, Catonsville, Pikesville, Middle River

Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.

No outlet locations are in our records for this operator. Square boat markers mark boat launches listed by OpenBoatLaunch.

Federal wastewater discharge permit (NPDES)

not recorded

Wastewater outlets

None with locations in our records

Waters listed as receiving wastewater

Gwynns Falls; Herring Run; Bullneck Creek; Back River; Jones Creek; Maiden Choice Creek; West Branch Herbert Run

Tracked waters

Back River, MD, Bullneck Creek, MD, Bear Creek, MD, Jones Creek, MD, Middle River, MD, Patapsco River, MD, Northwest Harbor, MD, Gwynns Falls, MD, Mardella Branch, MD, Deep Creek, MD, Hawk Cove, MD, Gunpowder Falls, MD, Dogwood Run, MD, Western Run, MD, Herring Run, MD, West Branch Herbert Run, MD, Redhouse Creek, MD, Dead Run, MD, Hopkins Creek, MD, Scotts Level Branch, MD, Bens Run, MD, Bill Branch, MD, Ruxton Run, MD, Stemmers Run, MD, Jones Falls, MD, Horsehead Branch, MD, Liberty Reservoir, MD, Loch Raven Reservoir, MD, Minebank Run, MD, Whitemarsh Run, MD, Moores Run, MD, Long Quarter Branch, MD, Dark Head Creek, MD, Chesapeake Bay, MD, Honeygo Run, MD, Towson Run, MD, Goodwin Run, MD, Saltpeter Creek, MD

Discharge records counted

330 records · latest Oct 29, 2026, 12:30 PM EDT

Total reported volume in these records

7,374,067 gallons across the 319 records that give a volume (11 without one)

These totals reflect the records we track. Missing volumes and gaps in reporting limit comparisons between operators.

Sources: EPA ECHO and the operator and state sources linked below. Counts use the discharge records on this page. Updated 2026-11-03 08:50 UTC.

Public notices and alerts

Pages where Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants) or the state publishes its notices (check them for an alert sign-up):

• www.baltimorecountymd.gov/departments/health/environmental/watersampling/alerts

Source: Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants)'s public notice and alert pages and the state's notification records.

Report a missing notice or error

Wastewater outlets

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

Reports and advisories

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

Sources: MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), retrieved 2026-11-03 08:17 UTC. A report's record id and times show when you hover or focus its "report" link.

Download these reports as CSV

All reports in Maryland by year: 2026 (68 from Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants)) · 2025 (89 from Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants)) · 2024 (108 from Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants)) · 2023 (91 from Baltimore County Department of Public Works and Transportation (sewer collection; flows to City plants))

Other sewer operators on these waters

• Back River, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Bear Creek, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Patapsco River, MD: Anne Arundel County Department of Public Works (Bureau of Utility Operations), Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs), Gatewater Landing Apartments (private system, Glen Burnie), Howard County Department of Public Works (Little Patuxent WRP and collection system), Carroll County Bureau of Utilities
• Northwest Harbor, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs), WSSC Water (Washington Suburban Sanitary Commission)
• Gwynns Falls, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Western Run, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Herring Run, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Dead Run, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Hopkins Creek, MD: Anne Arundel County Department of Public Works (Bureau of Utility Operations)
• Jones Falls, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Whitemarsh Run, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Moores Run, MD: Baltimore City Department of Public Works (separate sanitary system; Back River and Patapsco WWTPs)
• Chesapeake Bay, MD: Anne Arundel County Department of Public Works (Bureau of Utility Operations), Kent County DPW, U.S. Navy installations (Annapolis, Indian Head, Patuxent River), Town of Rock Hall

The last 90 days

Reported discharges over time