New Hampshire / Waters /
Portsmouth Harbor
Bay in New Hampshire · near New Castle
Status now
No current report
At least one source we follow covers this water, and nothing it reports applies right now.
Why this colour: No current report: nothing a covering source reports colours this water now. How long a water stays coloured, and why
Source: ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), last answered 2026-11-02 11:54 UTC; ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), last answered 2026-11-02 11:54 UTC; nh-permittees, last answered 2026-11-02 11:55 UTC. Status computed by DirtyWaterWatch as of 2026-11-02 11:56 UTC.
It is not a finding about the water. Discharges go unreported, reports arrive late, and storm runoff carries bacteria too. Follow posted signs and local health advice.
As of Nov 2, 2026, 6:56 AM EST.
Map
Source: water outlines from OpenBoatLaunch and OpenStreetMap contributors (ODbL); outfalls from EPA ECHO and the state outfall layers; modeled reaches computed by DirtyWaterWatch from USGS NLDI, NHDPlus and the nearest USGS gauge (Jobson 1996); basemap OpenFreeMap and OpenMapTiles.
Outfalls are small brown dots.
The last 90 days
No red or yellow period in this span.
Source: hourly statuses computed by DirtyWaterWatch (pipeline build/status.py) from the events linked above and the rules on the methods page; history as of 2026-11-02 11:56 UTC.
Discharges over the years
- Discharge events, last 12 months0Dec 2025 to Nov 2026; partly covered or sparse source
Discharge events per month
0 events, Jan 2022 to Nov 2026.
- Combined sewer overflow
- Sanitary sewer overflow
- Bypass, blended or other
- No source
- Partly covered or sparse source
No source covers 2022-01 to 2022-04. Some dischargers here report only monthly or yearly totals; those are shown under reported totals, not counted here.
Source: EPA ECHO sewer overflow events. Covered 2022-05-03 to 2026-11-02.
Show table
| Month | Combined sewer overflow | Sanitary sewer overflow | Bypass, blended or other | Total | Counted from | Coverage |
|---|---|---|---|---|---|---|
| Jan 2022 | 0 | 0 | 0 | 0 | No source | |
| Feb 2022 | 0 | 0 | 0 | 0 | No source | |
| Mar 2022 | 0 | 0 | 0 | 0 | No source | |
| Apr 2022 | 0 | 0 | 0 | 0 | No source | |
| May 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jun 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Aug 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Sep 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Oct 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Nov 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Dec 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jan 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Feb 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Mar 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Apr 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| May 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jun 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Aug 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Sep 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Oct 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Nov 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Dec 2023 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jan 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Feb 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Mar 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Apr 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| May 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jun 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Aug 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Sep 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Oct 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Nov 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Dec 2024 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jan 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Feb 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Mar 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Apr 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| May 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jun 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Aug 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Sep 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Oct 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Nov 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Dec 2025 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jan 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Feb 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Mar 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Apr 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| May 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jun 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Aug 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Sep 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Oct 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Nov 2026 | 0 | 0 | 0 | 0 | Partly covered or sparse source |
Reported monthly totals: NH permittee notices (Nashua, Manchester, Portsmouth, Exeter)
Portsmouth publishes monthly CSO volumes per outfall, not events. Source: NH permittee notices (Nashua, Manchester, Portsmouth, Exeter). Covered 2010-01-01 to 2025-05-01.
Reported volume
Gallons per year (monthly figures summed by year).
Show table
| Year | Reported volume |
|---|---|
| 2010 | 86,554,300 gal |
| 2011 | 11,925,400 gal |
| 2012 | 9,324,200 gal |
| 2013 | 3,871,000 gal |
| 2014 | 13,223,400 gal |
| 2015 | 3,266,100 gal |
| 2016 | 3,061,200 gal |
| 2017 | 1,229,800 gal |
| 2018 | 6,190,300 gal |
| 2019 | 2,549,000 gal |
| 2020 | 597,000 gal |
| 2021 | 779,000 gal |
| 2022 | 636,000 gal |
| 2023 | 13,043,000 gal |
| 2024 | 10,248,000 gal |
| 2025 | 55,000 gal |
How these charts are counted
Discharge events are counted once: where a source publishes both public notices and verified reports (MassDEP, Vermont DEC), a discharger's month with any verified report counts its verified reports only, and other months count notices. Revisions are folded into the record they revise, and EPA copies of a state report are not counted twice. Monthly and yearly totals (Maine DEP, EPA discharge monitoring reports, Portsmouth) are shown on their own and never added to the event counts. Hours under advisory follow the map's red rules. A muted band marks periods no source covers: a gap there is missing data, not a quiet month.
- EPA ECHO sewer overflow events: 2022-05-03 to now (sparse)
Every event on Portsmouth Harbor
| Start | End | Discharger | Outfall | Type | Volume | Source | Links |
|---|---|---|---|---|---|---|---|
| May 2025 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 55,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2025-05:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2024 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 149,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2024-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2024 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 1.13 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2024-04:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| March 2024 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 866,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2024-03:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2024 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 4.44 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2024-01:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2024 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 3.67 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2024-01:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 2.4 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 21,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-09:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 2.45 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 37,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-08:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 826,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 3,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-07:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 14,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 2.19 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-05:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 634,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-04:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| March 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 71,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-03:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 4.17 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-01:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2023 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 216,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2023-01:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| November 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 1,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-11:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 210,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 13,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-10:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 75,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 2,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-09:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 144,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 30,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 32,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 27,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-05:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2022 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 102,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2022-04:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| November 2021 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 36,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2021-11:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2021 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 573,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2021-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2021 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 15,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2021-10:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2021 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 30,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2021-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2021 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 4,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2021-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2021 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 121,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2021-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| December 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 3,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-12:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| November 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 40,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-11:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 9,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 5,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 2,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 40,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 3,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-07:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 372,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 117,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-06:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2020 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 6,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2020-01:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| December 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 433,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-12:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| December 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 385,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-12:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 1,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 38,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 14,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 198,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 10,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-06:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| February 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 1.01 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-02:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| February 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 46,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-02:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2019 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 416,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2019-01:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| November 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 125,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-11:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 2.59 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 390,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-09:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 78,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 469,900 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 929,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-07:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 1.6 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-04:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2018 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 9,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2018-04:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 241,100 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 700 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 161,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 401,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-05:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 8,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-05:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 401,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-04:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 15,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-04:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| February 2017 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 2,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2017-02:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| November 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 150,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-11:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 679,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 9,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-10:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 521,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 21,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-07:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 40,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| February 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 775,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-02:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| February 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 12,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-02:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 844,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-01:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| January 2016 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 10,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2016-01:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| December 2015 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 13,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2015-12:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2015 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 6,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2015-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2015 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 804,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2015-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2015 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 165,000 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2015-09:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2015 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 1.97 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2015-04:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| April 2015 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 307,800 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2015-04:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| December 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 7.71 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-12:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| December 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 390,800 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-12:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| October 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 933,900 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-10:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 231,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 161,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 261,300 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| March 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 3.42 million gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-03:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| March 2014 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 116,700 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2014-03:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2013 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 376,900 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2013-09:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| September 2013 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 2,100 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2013-09:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| August 2013 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 217,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2013-08:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| July 2013 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 92,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2013-07:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2013 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10A Parrot Avenue | Combined sewer overflow | 767,300 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2013-06:10A, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| June 2013 | ended, time not reported | City of Portsmouth DPW Wastewater Division | 10B Parrot Avenue | Combined sewer overflow | 6,200 gal | City of Portsmouth DPW (CSO page, monthly summary table) via nh-permittees, record portsmouth:2013-06:10B, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
Showing the newest 100 events of 149 events. See them all with filters.
Outfalls on this water
No outfall in the registry is matched to this water.
Dischargers: City of Portsmouth DPW Wastewater Division (Peirce Island WWTF and 3 CSOs).
Launches
Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, ODbL). · Portsmouth Harbor on OpenBoatLaunch
Sources covering this water
- ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall) · updating · last answered Nov 2, 2026, 6:54 AM EST
- ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions) · updating · last answered Nov 2, 2026, 6:54 AM EST
- nh-permittees · updating · last answered Nov 2, 2026, 6:55 AM EST
149 events placed on this water in this build.