Maryland sewage discharges, June 2025
79 records of sewage discharges and water advisories in Maryland dated in June 2025, newest first. Each record keeps the source's own times and wording.
Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-03 02:43 UTC.
Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Treatment bypass: wastewater skips one or more treatment steps.
| When | Report | Status |
|---|---|---|
| to 5:01 PM | Mayor and City Council of Cumberland · North Branch Potomac River · Walnut Place, Avirett Street, North Mechanic Street, Franklin Street, Valley Street, Bedford Street, Mill Race · CSO · 104,500 gallons · notice · map | ended |
| to 3:05 PM | Wssc · “Broad Creek” · 8205 Waterside Court · SSO · 95 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 7030 Surrey Drive · SSO · 2 gallons · notice · map | ended |
| to Jul 1 ’25, 7:00 AM | City of Frostburg · “George's Creek” · Outfall 009P.2 and Grant Street · CSO · 11,000 gallons · notice | ended |
| to 4:30 PM | Town of Rock Hall · “none” · Haven Rd & Henry Ave · SSO · 200 gallons · notice | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 3026 W Lanvale St · SSO · 4 gallons · notice · map | ended |
| to 2:20 PM | City of Annapolis · Weems Creek · 160 Porter Drive · SSO · 2,000 gallons · notice · map | ended |
| to 3:45 PM | Wssc · “Patuxent River” · 2511 Lindenwood Dr · SSO · 92 gallons · notice · map | ended |
| to Jul 1 ’25, 2:16 PM | Baltimore City DPW · “Biddison Run” · 3716 Gibbons Ave · SSO · 29,155 gallons · notice · map | ended |
| to 8:40 PM | Mayor and City Council of Cumberland · North Branch Potomac River · 5 CSO locations · CSO · 62,900 gallons · notice · map | ended |
| to 3:00 PM | Anne Arundel County DPW · “None.” · 1 Harry S Truman Parkway · SSO · 175 gallons · notice · map | ended |
| to 1:15 PM | Howard County DPW · “Nearby tributary of the Little Patuxent River.” · rear 8937 Tamar Drive · SSO · 300 gallons · notice · map | ended |
| to 12:00 PM | City of Annapolis · “none” · In the woods behind Allen Apt near Center St. · SSO · 10,000 gallons · notice | ended |
| to 9:00 PM | Baltimore County DPW · “Gwynns Falls” · 44 Kinglsey Road · SSO · 550 gallons · notice · map | ended |
| to 8:50 AM | Baltimore City DPW · “Spillway” · 8201 Eastern Avenue · SSO · 1,000 gallons · notice | ended |
| to 2:30 PM | St. Mary's County Metropolitan Commission · “Ditch line” · 22230 Meadow Lane · SSO · 3,889 gallons · notice · map | ended |
| to Jun 27 ’25 | Anne Arundel County Department of Health · Weems Creek · Beach advisory · volume not reported · notice · map | lifted |
| to Jun 30 ’25 | Anne Arundel County Department of Health · Weems Creek · Beach advisory (earlier version) · volume not reported report · notice · map | listed |
| to Jun 23 ’25, 4:00 AM | City of Crisfield · Tangier Sound · 219 S Somerset Ave · SSO · 4,000 gallons · notice · map | ended |
| to 5:45 PM | Anne Arundel County DPW · West River · 1203 Steamboat Road · SSO · 250 gallons · notice · map | ended |
| to 5:15 PM | Wssc · “Northeast Branch” · 9005 Lanham-Severn Rd · SSO · 299 gallons · notice · map | ended |
| to 9:30 AM | Anne Arundel County DPW · Weems Creek · Cedar Park & Ford Circle · SSO · 1,500 gallons · notice · map | ended |
| to 7:45 AM | City of Annapolis · Ford Circle · SSO · volume not reported · notice | ended |
| to 10:30 AM | Anne Arundel County DPW · Weems Creek · Cedar Park · SSO · 1,500 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 5512 Park Heights Ave · SSO · 1 gallons · notice · map | ended |
| to 10:30 PM | Wssc · “Beaverdam Branch” · 4210 73rd Ave. · SSO · 198 gallons · notice · map | ended |
| to 9:41 PM | Baltimore City DPW · “SSO was isolated and did not enter into stormwater management or regulated resources.” · 2436 Harriet Ave. · SSO · 972 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 306 W Coldspring Lane · SSO · 1 gallons · notice · map | ended |
| to 8:30 AM | Baltimore City DPW · “N/A” · 3600 Harford Rd · SSO · 5 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · Northwest Harbor · 509 S Exeter St · SSO · 1 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 2728 Reistertown Rd · SSO · 2 gallons · notice · map | ended |
| to Jun 22 ’25, 11:05 PM | Wssc · Potomac River · 12200 River Rd · SSO · volume not reported · notice · map | ended |
| to 10:27 PM | Baltimore City DPW · “Biddison Run” · 4310 Lasalle Ave · SSO · 7,920 gallons · notice · map | ended |
| to 8:15 AM | Harford County DPW · “Storm drain and ground” · 1475 Harford Square Drive · SSO · 800 gallons · notice | ended |
| to Jun 18 ’25, 3:16 PM | Mayor and City Council of Cumberland · “Wills Creek” · Valley Street, Bedford Street, N. Mechanic Street, Franklin Street · CSO · 112,200 gallons · notice | ended |
| to 3:00 PM | U.S. Navy · Patuxent River · 47042 Pate Rd · SSO · 100 gallons · notice · map | ended |
| to 5:02 AM | Mayor and City Council of Cumberland · North Branch Potomac River · 6 CSO locations · CSO · 97,900 gallons · notice · map | ended |
| to Jun 16 ’25, 3:12 AM | Mayor and City Council of Cumberland · North Branch Potomac River · 8 CSO locations · CSO · 614,500 gallons · notice · map | ended |
| to 6:30 PM | Howard County DPW · Patuxent River · 8409 Sweet Cherry Lane · SSO · 3,500 gallons · notice · map | ended |
| to Jun 16 ’25, 7:00 AM | City of Frostburg · “Sand Spring Run, George's Creek” · State St, Grant St · CSO · 20,000 gallons · notice | ended |
| to Jun 15 ’25, 7:00 AM | City of Frostburg · “George's Creek” · Grant St · CSO · 8,000 gallons · notice · map | ended |
| to 6:25 PM | Wssc · “Cabin John” · 6004 Osceola Rd · SSO · 0 gallons · notice · map | ended |
| to Jun 14 ’25, 7:00 AM | City of Frostburg · “George's Creek” · Grant St. · CSO · 12,000 gallons · notice · map | ended |
| to 4:00 PM | Baltimore County DPW · “Went into storm drain. Closest waterway is Unnamed Tributary to Jones Falls (Use I).” · 6213 N Charles St · SSO · 100 gallons · notice · map | ended |
| to 3:55 PM | Baltimore City DPW · Patapsco River · 3501 Asiatic Ave. · Bypass · 4 million gallons · notice · map | ended |
| to 12:00 PM | Wssc · “Seneca Creek” · 20129 Darlington Dr · SSO · 145 gallons · notice · map | ended |
| to 11:30 PM | Wssc · “Northeast Branch” · 6330 Auburn Ave · SSO · 1,022 gallons · notice · map | ended |
| to 7:49 AM | Wssc · Piscataway Creek · 11 Farmington Road · SSO · 250 gallons · notice · map | ended |
| to Jun 12 ’25, 2:00 PM | Baltimore City DPW · “Gwynns Falls” · Edmonson Ave & North Hilton Parkway · SSO · 261,100 gallons · notice · map | ended |
| to 8:30 AM | Ellicott Meadows Community Association Inc. · “Groundwater WWTP discharges to drainfields.” · 11804 Willow Branch Rd · SSO · 400 gallons · notice · map | ended |
| to Jun 9 ’25, 12:30 PM | LaVale Sanitary Commission · “Braddock Run” · 12610 Labers Lane · CSO · 1 million gallons · notice | ended |
| to 10:15 AM | Anne Arundel County DPW · “None.” · 3429 Glebe Road · SSO · 50 gallons · notice · map | ended |
| to Jun 9 ’25, 2:00 PM | LaVale Sanitary Commission · “Braddock Run” · 1 Old Mt. Savage Road · CSO · 99,859 gallons · notice | ended |
| to Jun 10 ’25, 6:29 PM | Mayor and City Council of Cumberland · North Branch Potomac River · Mill Race, Elizabeth Street, Oldtown Road, Bedford Street, N. Mechanic Street, Franklin Street, Valley Street, Avirett Street, Walnut Place · CSO · 4.74 million gallons · notice · map | ended |
| to Jun 9 ’25, 7:00 AM | City of Frostburg · “Sand Spring Run and George's Creek” · Three CSO locations · CSO · 85,000 gallons · notice | ended |
| to Jun 9 ’25, 7:00 AM | City of Frostburg · “Sand Spring Run & Georges Creek” · State Street, outfall 009/P.1, Grant Street · CSO · 85,000 gallons · notice | ended |
| to 6:50 AM | Mayor and City Council of Cumberland · “Wills Creek” · Valley St · CSO · 7,800 gallons · notice · map | ended |
| to 8:54 PM | Baltimore City DPW · “N/A” · 6228 Eastern Ave · SSO · 92 gallons · notice · map | ended |
| to 7:15 PM | Wssc · “Sligo Creek” · 8712 Piney Branch Rd · SSO · 1,380 gallons · notice · map | ended |
| to 7:01 PM | Mayor and City Council of Cumberland · North Branch Potomac River · 9 CSO locations · CSO · 3.24 million gallons · notice · map | ended |
| to 8:05 AM | Baltimore City DPW · “N/A” · 6608 Danville Ave · SSO · 0 gallons · notice · map | ended |
| to Jun 7 ’25, 7:00 AM | City of Frostburg · “Sand Spring Run & Georges Creek” · State Street, outfall 009/P.2, Grant Street · CSO · 40,000 gallons · notice | ended |
| to Jun 6 ’25, 7:00 AM | Kent County DPW · “None.” · North Main St and Anderson Ave · SSO · 2,000 gallons · notice | ended |
| to Jun 6 ’25, 7:00 AM | Town of Rock Hall · “none” · Haven Rd and Henry Ave · SSO · 2,000 gallons · notice | ended |
| to 4:15 PM | Baltimore City DPW · “N/A” · 1801 N. Payson St · SSO · 3 gallons · notice · map | ended |
| to 12:18 PM | Baltimore City DPW · “N/A” · 419 N Athol Ave · SSO · 216 gallons · notice · map | ended |
| to 2:18 PM | Baltimore City DPW · “Chinquapin Run” · 5010 Loch Raven Blvd · SSO · 188 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · Northwest Harbor · 702 S Broadway · SSO · 1 gallons · notice · map | ended |
| to 1:50 AM | Wssc · “Cabin John” · 801 Ellsworth Drive · SSO · 7 gallons · notice · map | ended |
| to 7:21 PM | Howard County DPW · Patapsco River · 2701 Brinkleigh Drive · SSO · 55 gallons · notice · map | ended |
| to Jun 4 ’25, 4:00 PM | Baltimore City DPW · “Gwynns Falls” · 2700 Wegworth Lane · SSO · 682 gallons · notice · map | ended |
| to 2:01 PM | Baltimore County DPW · “N/A” · 2706 Sarah Lane · SSO · 3 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 2611 Fairmount Ave · SSO · 0 gallons · notice · map | ended |
| to 8:09 AM | Baltimore City DPW · “N/A” · 1716 Sulgrave Ave · SSO · 1 gallons · notice · map | ended |
| to 7:30 AM | Beaver Run MHP LLC · “WWTP Outfall 001 flows to groundwater. No surface waters of the state were affected by this overflow.” · 3658 Karen Circle · SSO · 20 gallons · notice · map | ended |
| to 1:30 PM | St. Mary's County Metropolitan Commission · Herring Creek · 19065 Piney Point Road · SSO · 6,630 gallons · notice · map | ended |
| to 6:00 PM | U.S. Army · “N/A (Lower Monocacy River)” · Building 1067 at Fort Detrick · SSO · 3 gallons · notice · map | ended |
| to Jun 2 ’25, 6:00 AM | Trans-Tech, Inc. · “Tuscarora Creek” · 5520 Adamstown Road · SSO · 7,000 gallons · notice · map | ended |
| to 8:05 AM | Baltimore City DPW · “N/A” · 6001 Pimlico Rd · SSO · 1 gallons · notice · map | ended |
Sources: MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), retrieved 2026-11-03 02:31 UTC; Anne Arundel County Department of Health Recreational Water Closings and Advisories, retrieved 2026-11-03 02:27 UTC. A report's record id and times show when you hover or focus its "report" link.