Maryland sewage discharges, December 2023
122 records of sewage discharges and water advisories in Maryland dated in December 2023, 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.
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. Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.
| When | Report | Status |
|---|---|---|
| to 8:00 PM | City of Annapolis · Back Creek · Building 204 Victor Parkway · SSO · 5,000 gallons · notice · map | ended |
| to 8:00 PM | Anne Arundel County DPW · Back Creek · Outfall behind 55 Windwhisper Lane · SSO · 5,000 gallons · notice · map | ended |
| to Jan 1 ’24, 10:00 AM | Baltimore County DPW · “Stemmers Run” · 8761 Fontana Lane · SSO · 1,260 gallons · notice · map | ended |
| to 12:13 PM | Baltimore City DPW · “No receiving water” · 3502 Wabash Ave · SSO · 134 gallons · notice | ended |
| to Jan 23 ’24, 9:00 AM | Baltimore City DPW · “Gwynn's Falls” · 2112 Garrison Blvd · SSO · 54,800 gallons · notice | ended |
| to 2:41 PM | Anne Arundel County DPW · “None.” · 8833 Wagner Station Rd · SSO (earlier version) · 100 gallons · notice · map | ended |
| to 2:41 PM | Anne Arundel County DPW · “None.” · 8833 Wagner Station Rd · Bypass · 100 gallons · notice · map | ended |
| to 9:18 AM | Town of Rock Hall · “N/A” · 6015 North Main St · SSO · 500 gallons · notice | ended |
| to 10:00 PM | Baltimore City DPW · “[name removed] estimated the final volume to be 250 gallons.” · 3529 Gelston Dr · SSO · 1,368 gallons · notice | ended |
| to 11:05 AM | Anne Arundel County DPW · “N/A” · 5829 Ritchie Highway · SSO (earlier version) · 700 gallons · notice · map | ended |
| to 11:05 AM | Anne Arundel County DPW · “N/A” · 5829 Ritchie Highway · SSO · 700 gallons · notice · map | ended |
| to 2:30 PM | Town of Chesapeake City · “outfall 001 C&D Canal” · 90 boat yard road · Bypass · volume not reported · notice | ended |
| to 6:00 AM | City of Cambridge DPW · Little Blackwater River · 1 Oakly Street · SSO · 5,000 gallons · notice · map | ended |
| to Jan 1 ’24, 11:30 PM | Baltimore County DPW · “Sewage did drain into a storm drains that discharge into White Marsh Run several hundred feet away from the property or location of the SSO.” · Fontana Ln · SSO · volume not reported · notice | ended |
| to 12:01 AM | Baltimore City DPW · “unknown” · 2400 Keyworth Ave · SSO · 603 gallons · notice | ended |
| to 11:56 PM | Wssc · Piscataway Creek · 14313 Indian Head Highway · SSO · 505 gallons · notice · map | ended |
| to 11:40 PM | Wssc · Piscataway Creek · 14313 Indian Head Highway · SSO · 505 gallons · notice · map | ended |
| to 11:35 PM | Baltimore County DPW · “Herring Run” · 7829 AIKEN AVE & Taylor Ave · SSO · 841 gallons · notice · map | ended |
| to 10:58 PM | Baltimore County DPW · “Herring Run” · Queen Anne Drive/Hillcrest Ave · SSO · 26,534 gallons · notice · map | ended |
| to 11:10 PM | Baltimore City DPW · “Herring Run” · 3900 Belair Rd, Baltimore, 21206 · SSO · 915,135 gallons · notice | ended |
| to 9:03 PM | Town of La Plata · “unnamed Port Tabaco tributary” · 6505 Curley Hall Road · SSO · 60,000 gallons · notice | ended |
| to 10:30 PM | Allegany County DPW · “Elk Lick Run” · Mill Run Pump Station · SSO · 19,500 gallons · notice | ended |
| to 10:30 PM | Allegany County DPW · “Elk Lick Run” · Manhole 127 behind Pharmacare · SSO · 19,500 gallons · notice | ended |
| to Dec 28 ’23, 4:30 PM | Allegany County DPW · North Branch Potomac River · Cresaptown Pump Station · SSO · 75,000 gallons · notice · map | ended |
| to Dec 28 ’23, 5:00 AM | LaVale Sanitary Commission · “Braddock Run” · 1 Old Mt. Savage Road · CSO · 698,421 gallons · notice · map | ended |
| to 7:00 PM | Allegany County DPW · “Georges Creek” · Wrights Crossing Pump Station · CSO · 30,000 gallons · notice | ended |
| to 8:05 AM | Baltimore City DPW · “N/A” · 3510 Wabash Ave · SSO · 3 gallons · notice | ended |
| to Dec 28 ’23, 7:00 AM | City of Frostburg · “George's Creek” · Grant St · CSO (earlier version) · 16,000 gallons · notice · map | ended |
| to Dec 28 ’23, 7:00 AM | City of Frostburg · “George's Creek” · Grant Street · CSO · 16,000 gallons · notice · map | ended |
| to Dec 28 ’23, 4:30 PM | Allegany County DPW · “Warrior Run” · Manhole #20 on Darrows Lane · SSO · 75,000 gallons · notice | ended |
| to Dec 28 ’23, 1:10 AM | Town of Perryville · Mill Creek · 72 Ikea way · SSO · 9,500 gallons · notice · map | ended |
| to 12:01 AM | Baltimore City DPW · “Jones Falls” · 428 E Prestion St (#72) · SSO · 450,000 gallons · notice | ended |
| to 12:01 AM | Baltimore City DPW · “Jones Falls” · 1901 Falls Rd. (#67) · SSO · 797,160 gallons · notice | ended |
| to Dec 27 ’23, 1:00 AM | LaVale Sanitary Commission · “Braddock Run” · Old Mt. Savage Road · CSO · 99,499 gallons · notice | ended |
| to 12:45 PM | Baltimore City DPW · “N/A” · 3501 Asiatic Ave · SSO (earlier version) · 700 gallons · notice · map | ended |
| to 12:45 PM | Baltimore City DPW · “None.” · 3501 Asiatic Ave · SSO · 700 gallons · notice | ended |
| to 9:18 PM | Mayor and City Council of Cumberland · North Branch Potomac River · Valley Street, Mill Race, Elizabeth Street, Oldtown Road, N. Mechanic Street, Franklin Street, Avirett Street · CSO · 143,800 gallons · notice · map | ended |
| to Jan 16 ’24, 10:54 AM | City of Cambridge DPW · “none” · 308 Wood Duck Dr · SSO · 2 gallons · notice | ended |
| to Dec 27 ’23, 7:00 AM | City of Frostburg · “Sand Spring Run, George's Creek” · State St, Grant St · CSO · 18,000 gallons · notice | ended |
| to Dec 27 ’23, 7:00 AM | City of Frostburg · “Sand Spring Run & Georges Creek” · State Street and Grant St. · CSO · 1,800 gallons · notice · map | ended |
| to Dec 26 ’23, 7:00 AM | City of Frostburg · “Sand Spring Run” · State Street · CSO · 3,000 gallons · notice · map | ended |
| to 8:13 PM | Baltimore County DPW · “Patapsco River or Possibly Back River” · 543 Springlake Way · SSO · 45 gallons · notice · map | ended |
| to Dec 27 ’23, 3:00 PM | Baltimore County DPW · “N/A” · 9808 Edisto Way · SSO · 4,320 gallons · notice · map | ended |
| to 6:45 PM | Charles County DPW · “None.” · St Charles Parkway and Post Office Rd · SSO (earlier version) · 8,000 gallons · notice · map | ended |
| to 6:45 PM | Charles County DPW · “N/A” · St Charles Parkway and Post Office Rd · SSO · 8,000 gallons · notice · map | ended |
| to 11:35 AM | U.S. Department of Agriculture · Beaverdam Creek · Lift Station 1500 · SSO · 500 gallons · notice · map | ended |
| Spirit Realty LP · Monocacy River · 4300 Georgia Pacific Boulevard · SSO · volume not reported · notice · map | reported | |
| to Dec 21 ’23, 11:00 AM | Frederick County Division of Utilities · “Storm Management Pond.” · 7101 Geoffrey Way · SSO · 12,000 gallons · notice · map | ended |
| to 11:01 AM | Baltimore City DPW · “Maidens Choice Run” · Uplands Parkway · SSO · 0 gallons · notice · map | ended |
| to Dec 20 ’23, 10:40 AM | Baltimore City DPW · “Storm drain” · 1820 Spence Street · SSO · 355 gallons · notice · map | ended |
| to 3:00 PM | Somerset County Sanitary District, Inc. · Manokin River · 11440 Ocean Hwy · SSO · 3,000 gallons · notice · map | ended |
| to 9:30 PM | Baltimore County DPW · “storm drain” · 1700 E. Cold Spring · SSO · 30 gallons · notice | ended |
| to 2:40 PM | Anne Arundel County DPW · “N/A” · 5366 Browns Way · SSO (earlier version) · 1,000 gallons · notice · map | ended |
| to 2:40 PM | Anne Arundel County DPW · “N/A” · 5366 Browns Way · SSO · 1,000 gallons · notice · map | ended |
| to 8:00 PM | Somerset County Sanitary District, Inc. · Manokin River · 30353 Linden Ave · SSO · 4,000 gallons · notice · map | ended |
| to 9:50 AM | City of Salisbury · “An estimated 500 gallons was reported to have overflown into the grassy/dirt area around the “out-house”.” · 265 S Park Drive · SSO · 500 gallons · notice | ended |
| to 12:15 PM | Somerset County Sanitary District, Inc. · Manokin River · Beechwood St & Dr Hytche Blvd · SSO · 1,200 gallons · notice · map | ended |
| to 9:00 AM | City of Salisbury · Wicomico River · 1142 Marine Rd · SSO · 1,560 gallons · notice · map | ended |
| to 10:30 AM | Town of Perryville · Mill Creek · 72 Ikea Way · Bypass · 20,000 gallons · notice · map | ended |
| to Dec 22 ’23, 9:00 AM | Somerset County Sanitary District, Inc. · Manokin River · 30353 Linden Ave · Bypass · volume not reported · notice · map | ended |
| to 8:11 AM | Wssc · Piscataway Creek · 13707 Baytomac Farms Lane · SSO (earlier version) · 500 gallons · notice · map | ended |
| to 8:11 AM | Wssc · Piscataway Creek · 13707 Baytomac Farms Lane · SSO · 500 gallons · notice · map | ended |
| to 3:40 AM | Charles County DPW · “n/a” · 5080 General Smallwood Drive · SSO · 12,000 gallons · notice | ended |
| to 6:00 PM | City of Cambridge DPW · Choptank River · Water St. · SSO · 10,000 gallons · notice · map | ended |
| to 6:00 PM | City of Cambridge DPW · Honga River · S Regulator Dr · SSO · 9,000 gallons · notice · map | ended |
| to 6:00 PM | City of Cambridge DPW · “Little Maple Dam Branch” · Maple Dam Rd · SSO · 10,000 gallons · notice · map | ended |
| to 3:30 AM | Baltimore City DPW · “no” · 8201 Eastern Blvd · SSO · 1,000 gallons · notice | ended |
| to 7:00 AM | Baltimore City DPW · “N/A” · 3501 Asiatic Ave · SSO (earlier version) · 6,700 gallons · notice · map | ended |
| to 7:00 AM | Baltimore City DPW · “None.” · 3501 Asiatic Ave · SSO · 6,700 gallons · notice | ended |
| to 5:00 AM | LaVale Sanitary Commission · “Braddock Run” · Old Mt. Savage Road · CSO · 125,251 gallons · notice · map | ended |
| to 12:01 AM | Baltimore City DPW · “Jones Falls” · 1500 N Charles St · SSO · 500 gallons · notice | ended |
| to Dec 18 ’23, 9:10 AM | Frederick County Division of Utilities · “It appears the overflow was contained on site and no wastewater entered the waters of the state.” · 166 West Main Street · SSO · 10,500 gallons · notice · map | ended |
| to Dec 18 ’23, 6:56 AM | Baltimore County DPW · “Maiden's Choice Creek” · Overbrook Rd & Medwick Garth St · SSO · 342,319 gallons · notice | ended |
| to Dec 18 ’23, 5:17 AM | Baltimore County DPW · “Herring Run” · 7829 Aiken Ave & Taylor Ave · SSO · 20,282 gallons · notice | ended |
| to Dec 18 ’23, 4:57 AM | Baltimore County DPW · “Herring Run” · Queen Anne Drive & Hillcrest Avenue · SSO · 111,039 gallons · notice | ended |
| to Dec 18 ’23, 6:38 AM | Baltimore County DPW · “Maidens Choice Creek” · Alter St. & Southern Cross Drive · SSO · 35,304 gallons · notice | ended |
| to Dec 18 ’23, 7:28 AM | Baltimore County DPW · “Gwynn's Falls” · 3909 Southern Cross Drive · SSO · 107,281 gallons · notice | ended |
| to Dec 18 ’23, 7:33 AM | Baltimore County DPW · “Gwynn's Falls” · Southern Cross Drive & Parsons Ave · SSO · 83,250 gallons · notice | ended |
| to Dec 18 ’23, 1:20 AM | Mayor and City Council of Cumberland · North Branch Potomac River · Cumberland CSOs · CSO · 18,700 gallons · notice · map | ended |
| to Dec 18 ’23, 4:05 AM | Baltimore City DPW · “Maidens Choice Run” · Charing Cross Rd & Greenwich Ave · SSO · 37,950 gallons · notice · map | ended |
| to Dec 18 ’23, 12:40 PM | Baltimore City DPW · “Jones Falls” · 428 E. Preston St (DUPLICATE) · SSO (earlier version) · 2.13 million gallons · notice | ended |
| to Dec 18 ’23, 12:40 PM | Baltimore City DPW · “Jones Falls” · 428 E Preston St · SSO · 2.13 million gallons · notice · map | ended |
| to Dec 18 ’23, 10:20 AM | Baltimore City DPW · “Jones Falls” · 1901 Falls Rd · SSO (earlier version) · 6.02 million gallons · notice · map | ended |
| to Dec 18 ’23, 10:20 AM | Baltimore City DPW · “Jones Falls” · 1901 Falls Rd · SSO · 6.02 million gallons · notice | ended |
| to Dec 18 ’23, 6:10 AM | Baltimore City DPW · “Herring Run” · 3900 Belair Rd · SSO · 1.58 million gallons · notice · map | ended |
| to Dec 18 ’23, 7:00 AM | City of Frostburg · “Sand Spring Run & George's Creek” · State Street, outfall 009/P2, Grant Street · CSO · 26,000 gallons · notice | ended |
| to 5:00 PM | City of Rockville · “Watts Branch” · SSO · 75 gallons · notice | ended |
| to 5:00 PM | City of Rockville · “Watts Branch watershed” · 651 Great Falls Rd · SSO · 75 gallons · notice | ended |
| to 8:48 AM | American Water Operations & Maintenance, Inc. · “Rogue Harbor Creek” · Next to Rogue Harbor 1 · SSO · 1,740 gallons · notice | ended |
| to Jan 17 ’24 | Anne Arundel County Department of Health · “the headwaters of Cox Creek to the end of Carvel Beach Road” · Beach closure · volume not reported · notice | lifted |
| to Dec 21 ’23 | Anne Arundel County Department of Health · “the headwaters of Cox Creek to the end of Carvel Beach Road” · Beach closure (earlier version) · volume not reported report · notice | listed |
| to 8:00 PM | Harford County DPW · “n/a” · 1203 Basil Court · SSO · 800 gallons · notice · map | ended |
| to Dec 28 ’23, 2:30 PM | Baltimore City DPW · “Stony Run” · 5412 Willowmere Way · SSO · 2,319 gallons · notice · map | ended |
| to 4:34 PM | Baltimore City DPW · “Maiden Choice Run” · 278 S. Monastery Avenue · SSO · 888 gallons · notice · map | ended |
| to Jan 14 ’24, 10:15 AM | Charles County DPW · “Potomac River” · 5310 Hawthorne Rd · Bypass · volume not reported · notice · map | ended |
| to 5:30 PM | Baltimore City DPW · Back River · 8201 Eastern BLVD · Bypass · 5 million gallons · notice · map | ended |
| to Jan 16 ’24, 11:30 AM | Charles County DPW · “Potomac River” · 5310 Hawthorne Rd · Bypass · 51.64 million gallons · notice · map | ended |
| to 1:50 AM | Baltimore City DPW · “Jones Falls” · 428 E Preston St · SSO · 6,030 gallons · notice · map | ended |
| to Dec 11 ’23, 10:00 AM | City of Cambridge DPW · “Adjacent storm drain system” · Water St · SSO · 10,000 gallons · notice | ended |
| to Dec 11 ’23, 10:00 AM | City of Cambridge DPW · “Little Maple Dam Branch” · Maple Dam Rd · SSO · 10,000 gallons · notice | ended |
| to Dec 11 ’23, 1:00 AM | LaVale Sanitary Commission · “Braddock Run” · Old Mt. Savage Road · CSO · 61,576 gallons · notice · map | ended |
| to Dec 11 ’23, 7:00 AM | City of Frostburg · “Sand Spring Run and George's Creek” · State Street and Grant Street · CSO · 19,000 gallons · notice | ended |
| to Dec 9 ’23, 10:20 AM | Baltimore City DPW · “Baltimore Harbor” · 4500 W. Bay Avenue · SSO · 5,725 gallons · notice · map | ended |
| to 3:00 PM | City of Rockville · “Rock Creek” · 1601 east gude drive · SSO · 500 gallons · notice · map | ended |
| to 3:00 PM | City of Rockville · “Unnamed tributary of Rock Creek” · 1600-1635 East Gude Drive · SSO · 500 gallons · notice | ended |
| to 12:00 PM | Wssc · “Seneca Creek” · 13513 Teakwood Lane · SSO · 422 gallons · notice · map | ended |
| to 12:00 PM | City of Rockville · “Storm Drain to SWM Pond No Stream, river, etc. Private residence's sewer pit.” · 1601-1635 E. Gude Drive · SSO · 500 gallons · notice | ended |
| to 10:30 AM | Baltimore County DPW · “Back River” · 812 Orems Rd (DUPLICATE) · SSO (earlier version) · 20 gallons · notice · map | ended |
| to 10:30 AM | Baltimore County DPW · “Storm drain” · 812 Orems Rd (DUPLICATE) · SSO (earlier version) · 20 gallons · notice | ended |
| to 10:30 AM | Baltimore County DPW · Back River · 812 Orems Rd. · SSO · 20 gallons · notice · map | ended |
| to 3:39 PM | Baltimore City DPW · “Jones Falls” · 3615 W. Forrest Park Ave · SSO · 1,040 gallons · notice · map | ended |
| to 1:30 PM | Wssc · “N/A” · 7702 Marbury Rd · SSO · 0 gallons · notice | ended |
| to 9:45 AM | Gatewater Landing Apartments · “discharge did not reach waters of the state (nearby Marley Creek)” · 7357 Ridgewater Court · SSO · 20 gallons · notice · map | ended |
| to Dec 14 ’23 | Anne Arundel County Department of Health · “Marley Creek in Glen Burnie” · Beach closure · volume not reported · notice | lifted |
| to Dec 12 ’23 | Anne Arundel County Department of Health · “Marley Creek in Glen Burnie” · Beach closure (earlier version) · volume not reported report · notice | listed |
| to 4:30 PM | Washington County Department of Water Quality · “N/A” · 9557 Morning Walk Drive · SSO · 750 gallons · notice | ended |
| to 1:34 AM | Talbot County DPW · “NA. There was no release.” · 110 E Marengo St · SSO · 0 gallons · notice | ended |
| to Feb 15 ’24, 9:00 AM | Baltimore County DPW · “DUPLICATE WITH SSO #8730” · 2958 Bero Road (DUPLICATE) · SSO (earlier version) · 200 gallons · notice | ended |
| to Feb 15 ’24, 8:00 AM | Baltimore County DPW · “Near stormdrain that discharges (possibly) into Potapsco” · 2958 Bero Road · SSO · 200 gallons · notice · map | ended |
| to 12:17 PM | Baltimore City DPW · “Gwynns Falls” · 2212 Russell Street · SSO · 192 gallons · notice · map | ended |
| to Dec 2 ’23, 7:00 AM | City of Frostburg · “George's Creek” · Grant Street · CSO · 9,000 gallons · notice · map | ended |
| to 5:41 AM | Baltimore City DPW · “n/a” · 8201 Eastern BLVD · SSO · 0 gallons · notice | 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.