Northwest Harbor

Bay in Maryland, near Baltimore

End not confirmed

A discharge was reported, and we have not found an end time in the sources we track. This status since Nov 2, 2026, 8:12 AM EST. Why this status, and its source

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.

Square boat markers mark boat launches listed by OpenBoatLaunch.

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About this status

End not confirmed: no end time reported; shown as unconfirmed from day 7 to day 30 (site rule)

Source: Baltimore City Department of Public Works (Sewer Overflow Map) via Baltimore City DPW Sewer Overflow Map (SSO_Points2 map service), record 25940, the source gives no report time, retrieved 2026-11-03 02:30 UTC · Original notice · Updated Nov 2, 2026, 9:43 PM EST

Reports behind this status

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

Reports behind the status of Northwest Harbor, newest first
When	Report	Status
Oct 19, 9:12 AM	Baltimore City Department of Public Works · 700 S Caroline St · SSO · 2 gallons report · notice · map	to Nov 18, 8:12 AM
Oct 15, 11:22 AM	Baltimore City Department of Public Works · 700 S Caroline St · SSO · 5 gallons report · notice · map	to Nov 14, 10:22 AM
Oct 13, 9:25 AM	Baltimore City Department of Public Works · 700 S Caroline St · SSO · 2 gallons report · notice · map	to Nov 12, 8:25 AM

Sources: Baltimore City DPW Sewer Overflow Map (SSO_Points2 map service), retrieved 2026-11-03 02:30 UTC. A report's record id and times show when you hover or focus its "report" link.

The last 90 days

Last 90 days, hour by hour. Red: discharge or advisory reported. Amber: caution. Hatched amber: end not confirmed. Grey: no current status on the water outline. Purple hatching: source update overdue.

End not confirmed: Nov 2, 2026, 9:00 AM EST to the latest update
3 reports: Baltimore City Department of Public Works 3
Show records

The records are also in the report table on this page.
Caution: Oct 13, 2026, 9:00 AM EDT to Nov 2, 2026, 9:00 AM EST
3 reports: Baltimore City Department of Public Works 3
Show records

The records are also in the report table on this page.
End not confirmed: Oct 10, 2026, 10:00 PM EDT to Oct 13, 2026, 9:00 AM EDT
2 reports: Baltimore City Department of Public Works 2
Show records

The records are also in the report table on this page.
Caution: Sep 28, 2026, 12:00 PM EDT to Oct 10, 2026, 10:00 PM EDT
3 reports: Baltimore City Department of Public Works 3
Show records

The records are also in the report table on this page.
Discharge or advisory reported: Sep 27, 2026, 10:00 PM EDT to Sep 28, 2026, 12:00 PM EDT
1 report: Baltimore City Department of Public Works 1
Show records

The records are also in the report table on this page.
Caution: Sep 18, 2026, 3:00 PM EDT to Sep 27, 2026, 10:00 PM EDT
4 reports: Baltimore City Department of Public Works 3, Baltimore County DPW 1
Show records

The records are also in the report table on this page.
Discharge or advisory reported: Sep 18, 2026, 12:00 PM EDT to Sep 18, 2026, 3:00 PM EDT
2 reports: Baltimore City Department of Public Works 1, Baltimore County DPW 1
Show records

The records are also in the report table on this page.
End not confirmed: Aug 31, 2026, 3:00 PM EDT to Sep 16, 2026, 3:00 PM EDT
2 reports: Baltimore City Department of Public Works 2
Show records

The records are also in the report table on this page.
Caution: Aug 12, 2026, 3:00 PM EDT to Aug 31, 2026, 3:00 PM EDT
2 reports: Baltimore City Department of Public Works 2
Show records

The records are also in the report table on this page.
End not confirmed: Aug 10, 2026, 2:00 PM EDT to Aug 10, 2026, 11:00 PM EDT
1 report: Baltimore City Department of Public Works 1
Show records

The records are also in the report table on this page.
Caution: Aug 7, 2026, 2:00 PM EDT to Aug 10, 2026, 2:00 PM EDT
1 report: Baltimore City Department of Public Works 1
Show records

The records are also in the report table on this page.
Discharge or advisory reported: Aug 7, 2026, 9:00 AM EDT to Aug 7, 2026, 2:00 PM EDT
1 report: Baltimore City Department of Public Works 1
Show records

The records are also in the report table on this page.
End not confirmed: Aug 4, 2026, 11:00 PM EDT to Aug 7, 2026, 9:00 AM EDT
1 report: Baltimore City Department of Public Works 1
Show records

The records are also in the report table on this page.

Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-03 02:43 UTC.

Reported discharges over time

Historical charts are not available here. See the reports and sources on this page.

Reports linked to Northwest Harbor

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

Reports linked to Northwest Harbor, newest first
When	Report	Status
Oct 19, 9:12 AM	Baltimore City Department of Public Works · 700 S Caroline St · SSO · 2 gallons report · notice · map	to Nov 18, 8:12 AM
Oct 15, 11:22 AM	Baltimore City Department of Public Works · 700 S Caroline St · SSO · 5 gallons report · notice · map	to Nov 14, 10:22 AM
Oct 13, 9:25 AM	Baltimore City Department of Public Works · 700 S Caroline St · SSO · 2 gallons report · notice · map	to Nov 12, 8:25 AM
Sep 27, 10:29 PMto Sep 28, 11:24 AM	Baltimore City Department of Public Works · 507 S Exeter St · SSO · 388 gallons report · notice · map	ended
Sep 27, 10:29 PMto Sep 28, 12:24 PM	Baltimore City DPW · 507 South Exeter Street · SSO (earlier version) · 387 gallons report · notice · map	ended
Sep 26, 9:10 PM	Baltimore City Department of Public Works · 401 S Clinton St · SSO · 10 gallons report · notice · map	reported
Sep 26, 8:00 AMto 9:00 AM	Baltimore City DPW · 401 South Clinton St · SSO (earlier version) · 10 gallons report · notice · map	ended
Sep 18, 1:00 PM	Baltimore City Department of Public Works · 2112 Eastern Ave · SSO · 1 gallons report · notice · map	reported
Sep 18, 12:26 PMto 2:49 PM	Baltimore City Department of Public Works · 410 Key Hwy · SSO · 143 gallons report · notice · map	ended
Sep 18, 12:26 PMto 2:49 PM	Baltimore County DPW · 410 Key Highway · SSO · 143 gallons report · notice · map	ended
Aug 17, 2:35 PM	Baltimore City Department of Public Works · 724 S Wolfe St · SSO · 2 gallons report · notice · map	reported
Aug 12, 3:41 PM	Baltimore City Department of Public Works · 509 S Exeter St · SSO · 2 gallons report · notice · map	reported
Aug 12, 8:00 AMto 8:15 AM	Baltimore City DPW · 509 South Exeter St · SSO (earlier version) · 1 gallons report · notice · map	ended
Aug 7, 9:01 AMto 1:19 PM	Baltimore City Department of Public Works · 2100 E Chase St · SSO · 258 gallons report · notice · map	ended
Jul 11, 10:15 PM	Baltimore City Department of Public Works · 2309 Fleet St · SSO · 1 gallons report · notice · map	reported
Jun 22, 1:15 PMto 3:20 PM	Baltimore City DPW · 1513 N. Washington St · SSO · 125 gallons report · notice · map	ended
Apr 2, 4:15 PMto Apr 3, 10:55 AM	Baltimore City DPW · 506 South Central Ave · SSO · 5,595 gallons report · notice · map	ended
Mar 24, 6:06 AMto Mar 25, 12:07 PM	Baltimore City DPW · Rutland Avenue and Federal Street · SSO · 1,081 gallons report · notice · map	ended
Mar 22, 10:10 AMto 9:56 PM	Baltimore City DPW · 1312 Eastern Avenue · SSO · 7,060 gallons report · notice · map	ended
Mar 20, 2:08 PMto Mar 22, 9:41 PM	Baltimore County DPW · 506 S. Central Avenue · SSO (earlier version) · 1,666 gallons report · notice · map	ended
Mar 15, 6:58 PMto Mar 16, 11:00 AM	Baltimore City DPW · 2208 Fleet St · SSO · 1 gallons report · notice · map	ended
Mar 2, 10:50 AMto 3:00 PM	Baltimore City DPW · 509 S. Exeter Street · SSO · 2 gallons report · notice · map	ended
Feb 17, 1:32 PMto 7:27 PM	Baltimore City DPW · 933 N. Wolfe St · SSO · 295 gallons report · notice · map	ended
Feb 9, 8:26 AMto 3:30 PM	Wssc · 4517 Hopper Alley · SSO · 424 gallons report · notice · map	ended
Jan 29, 10:36 AM	Baltimore City DPW · 2443 E. Hoffman St · SSO · 25 gallons report · notice · map	reported

Sources: Baltimore City DPW Sewer Overflow Map (SSO_Points2 map service), retrieved 2026-11-03 02:30 UTC; MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), retrieved 2026-11-03 02:31 UTC. A report's record id and times show when you hover or focus its "report" link.

Download these reports as CSV

Showing the latest 25 records of 41 records.See them all with filters.

All reports in Maryland by year: 2026 (25 here) · 2025 (7 here) · 2024 (6 here) · 2023 (3 here)

Wastewater outlets on this water

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

No wastewater outlet in our records is linked to this water.

Boat launches

Boston Street Pier Park, Baltimore · Carry-in launch (canoe and kayak)
Canton Waterfront Park, Baltimore · Boat ramp

Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, Open Database License). · Northwest Harbor on OpenBoatLaunch

Nearby waters

Middle Branch Patapsco River, MD No current status shown about 3 km away
Patapsco River, MD No current status shown about 3 km away
Curtis Creek, MD No current status shown about 8 km away
Bullneck Creek, MD No current status shown about 8 km away
Bear Creek, MD No current status shown about 8 km away

Sources covering this water

Baltimore City DPW Sewer Overflow Map (SSO_Points2 map service) · Latest check succeeded · Last successful check: 2026-11-03 02:30 UTC
MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u) · Latest check succeeded · Last successful check: 2026-11-03 02:31 UTC

41 records linked to this water. Updated Nov 2, 2026, 9:43 PM EST.