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New Hampshire sewage discharges in 2010

28 records of sewage discharges and water advisories in New Hampshire dated in 2010, newest first. 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)28

By source: City of Portsmouth DPW (CSO page, monthly summary table)28

2010 in other states: Rhode Island.

Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-02 21:26 UTC.

Records in New Hampshire, 2010, newest first
StartTypeWaterSewer operatorOutletVolumeStatus and endSource and record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 8,500 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:2010-11:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 74,200 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:2010-11:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 451,100 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:2010-10:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 528,300 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:2010-10:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 3.1 million 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:2010-08:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 1.03 million 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:2010-08:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 919,300 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:2010-08:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 1.41 million 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:2010-07:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 210,900 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:2010-07:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 586,900 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:2010-07:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 1 million 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:2010-06:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 189,800 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:2010-06:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 63,600 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:2010-06:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 1.58 million 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:2010-05:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 64,800 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:2010-05:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 240,400 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:2010-05:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 2.83 million 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:2010-04:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 9,500 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:2010-04:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 15,200 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:2010-04:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 49.3 million 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:2010-03:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 13.86 million 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:2010-03:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 15.63 million 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:2010-03:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 8.8 million 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:2010-02:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 1.1 million 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:2010-02:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 3.33 million 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:2010-02:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10A Parrot Avenue 1.4 million 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:2010-01:10A, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Portsmouth Harbor City of Portsmouth DPW Wastewater Division 10B Parrot Avenue 214,400 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:2010-01:10B, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record
Combined sewer overflow (CSO) Piscataqua River City of Portsmouth DPW Wastewater Division 013 Deer Street 549,000 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:2010-01:013, the source gives no report time, retrieved 2026-11-02 21:19 UTC · Original notice ·
Full record