New Hampshire / Reports /
New Hampshire sewage discharges in 2025
64 records of sewage discharges and water advisories in New Hampshire dated in 2025, newest first, 1 earlier version or duplicate included and marked. Each record keeps the source's own times and wording; a record from the last six months, or one still in effect, also has a page of its own.
By type: Combined sewer overflow (CSO)51 · Sanitary sewer overflow (SSO)9 · Treatment plant bypass4
By source: City of Nashua Wastewater Department (History of CSO Occurrences PDF)50 · EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators)8 · Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page)5 · City of Portsmouth DPW (CSO page, monthly summary table)1
2025 in other states: Connecticut, Maine, Massachusetts, New Jersey, New York, Pennsylvania, Rhode Island, Vermont.
Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-02 21:26 UTC.
| Start | Type | Water | Sewer operator | Outlet | Volume | Status and end | Source and record |
|---|---|---|---|---|---|---|---|
| Sanitary sewer overflow (SSO) | “South Mill Pond via the MS4 System” | City of Portsmouth DPW Wastewater Division (Peirce Island WWTF and 3 CSOs) | not provided | 10 gallons | Ended (as reported); Dec 30, 2025, 7:50 PM EST | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NH0100234:1:1, reported Dec 31, 2025, 12:00 AM EST, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | Lamprey River | NEWMARKET SANITARY SEWER SYSTEM | not provided | 450 gallons | Ended (as reported); Dec 29, 2025, 11:00 PM EST | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NHG580013:5:1, reported Jan 3, 2026, 12:00 AM EST, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | Nashua River | City of Nashua Division of Public Works, Wastewater Department (Nashua WWTF, Sawmill Rd, and 9 CSOs) | not provided | 22,000 gallons | Ended (as reported); Dec 28, 2025, 6:00 PM EST | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NH0100170:7:1, reported Dec 30, 2025, 12:00 AM EST, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | Lamprey River | NEWMARKET SANITARY SEWER SYSTEM | not provided | 150 gallons | Ended (as reported); Dec 20, 2025, 2:15 PM EST | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NHG580013:4:1, reported Dec 24, 2025, 12:00 AM EST, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 1,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-11-10:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Treatment plant bypass | Squamscott River | Town of Exeter WWTP | 001 WWTP outfall 001 | 2,292 gallons | Ended (as reported); Oct 31, 2025, 2:41 AM EDT | Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:bypass:2025-10-31:1, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 003 Farmington Rd. | 1,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-10-20:003, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 005 East Hollis St. | 31,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-10-20:005, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 47,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-10-20:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 221,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-10-20:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Treatment plant bypass | Squamscott River | Town of Exeter WWTP | 001 WWTP outfall 001 | 3,750 gallons | Ended (as reported); Oct 8, 2025, 11:30 AM EDT | Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:bypass:2025-10-08:1, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Treatment plant bypass | Squamscott River | Town of Exeter WWTP | 001 WWTP outfall 001 | 2,709 gallons | Ended (as reported); Oct 5, 2025, 7:20 AM EDT | Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:bypass:2025-10-05:1, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO)Duplicate | “Little River” | Town of Exeter DPW (Exeter WWTP, 13 Newfields Rd, and CSO 003) | not provided | 8,460 gallons | Ended (as reported); Oct 3, 2025, 10:30 AM EDT | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NH0100871:4:1, reported Oct 3, 2025, 12:00 AM EDT, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | “Little River” | Town of Exeter DPW | Elm Street to Gilman Street. Inadvertant private sewer connection to storm drain was discovered. Use was discontinued im | “unknown” | Ended (as reported); end time not reported | Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:sso:2025-09-30:1, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 17,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-09-06:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 009 Lock St. | 2,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-09-06:009, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | “Cold Brook” | City of Nashua Division of Public Works, Wastewater Department (Nashua WWTF, Sawmill Rd, and 9 CSOs) | not provided | 5.17 million gallons | Ended (as reported); Sep 2, 2025, 10:46 PM EDT | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NH0100170:1:1, reported Sep 30, 2025, 12:00 AM EDT, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 003 Farmington Rd. | 59,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:003, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 608,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 005 East Hollis St. | 1.37 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:005, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 006 Nashua River | 1.72 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:006, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 007 Tampa St. | 920,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:007, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 009 Lock St. | 10,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:009, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 7.39 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-08-13:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 1,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-07-31:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 139,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-07-20:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 005 East Hollis St. | 38,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-07-20:005, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 16,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-07-20:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 009 Lock St. | 5,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-07-20:009, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 396,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-07-20:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | Mascoma Lake | City of Lebanon WWTF (CSOs eliminated) | not provided | 500 gallons | Ended (as reported); Jul 13, 2025, 12:20 AM EDT | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NH0100366:7:1, reported Jul 13, 2025, 12:00 AM EDT, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Sanitary sewer overflow (SSO) | Lamprey River | NEWMARKET SANITARY SEWER SYSTEM | not provided | 50 gallons | Ended (as reported); Jun 23, 2025, 3:31 PM EDT | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset, record NHG580013:3:1, reported Jun 27, 2025, 12:00 AM EDT, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 003 Farmington Rd. | 4,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-06-06:003, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 19,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-10:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 8,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-09:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 48,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-08:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 7,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-05:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 1.43 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-04:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 005 East Hollis St. | 165,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-04:005, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 006 Nashua River | 323,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-04:006, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 10,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-04:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 8.08 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-04:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 395,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-03:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 005 East Hollis St. | 81,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-03:005, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 006 Nashua River | 144,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-03:006, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 19,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-03:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 1.17 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-05-03:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Portsmouth Harbor | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | 55,000 gallons | Ended (as reported); end time not reported | City of Portsmouth DPW (CSO page, monthly summary table) via History of CSO Occurrences PDF, record portsmouth:2025-05:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 1.03 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-17:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 005 East Hollis St. | 58,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-17:005, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 006 Nashua River | 4,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-17:006, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 22,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-17:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 2.53 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-17:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Treatment plant bypass | Squamscott River | Town of Exeter WWTP | 001 WWTP outfall 001 | 40,278 gallons | Ended (as reported); end time not reported | Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:bypass:2025-03-07:1, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 324,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-06:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 2,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-06:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 305,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-06:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 4,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-05:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 19,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-03-05:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 203,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-02-05:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 89,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-02-04:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 004 Burke St. | 2.4 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-01-01:004, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Nashua River | City of Nashua Wastewater Department | 008 Broad St. | 6,000 gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-01-01:008, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record | |
| Combined sewer overflow (CSO) | Merrimack River | City of Nashua Wastewater Department | 014 Bridge St. | 1.07 million gallons | Ended (as reported); end time not reported | City of Nashua Wastewater Department (History of CSO Occurrences PDF), record nashua:2025-01-01:014, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Original notice · Full record |