Portsmouth Harbor
Bay in Maine · near Kittery
Status now
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: Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), 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
Every event on Portsmouth Harbor
| Start | End | Discharger | Outfall | Type | Volume | Source | Links |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026, 12:00 PM EDT | Aug 4, 2026, 12:00 PM EDT | not stated | not stated | Rainfall advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 108:rain_advisory:2026-08-03T12:00, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | Event: Rainfall advisory, , Aug 3, 2026, 12:00 PM EDT · Map |
| Aug 3, 2026, 12:00 PM EDT | Aug 4, 2026, 12:00 PM EDT | not stated | not stated | Rainfall advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 107:rain_advisory:2026-08-03T12:00, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | Event: Rainfall advisory, , Aug 3, 2026, 12:00 PM EDT · Map |
| Aug 3, 2026, 12:00 PM EDT | Aug 4, 2026, 12:00 PM EDT | not stated | not stated | Rainfall advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 106:rain_advisory:2026-08-03T12:00, the source gives no report time, retrieved 2026-11-02 11:55 UTC · notice | Event: Rainfall advisory, , Aug 3, 2026, 12:00 PM EDT · Map |
| Aug 21, 2024, 3:20 PM EDT | Aug 28, 2024, 4:30 PM EDT | not stated | not stated | Beach advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 108:beach_advisory:2024-08-21T15:20, 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) | |||||||
| Aug 9, 2024, 9:08 AM EDT | Aug 11, 2024, 11:59 PM EDT | not stated | not stated | Rainfall advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 108:rain_advisory:2024-08-09T09:08, 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) | |||||||
| Aug 9, 2024, 9:07 AM EDT | Aug 11, 2024, 11:59 PM EDT | not stated | not stated | Rainfall advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 107:rain_advisory:2024-08-09T09:07, 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) | |||||||
| Aug 9, 2024, 9:07 AM EDT | Aug 11, 2024, 11:59 PM EDT | not stated | not stated | Rainfall advisory | not reported | Maine Healthy Beaches (Maine DEP); posted by Kittery via Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson), record 106:rain_advisory:2024-08-09T09:07, 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) | |||||||
Outfalls on this water
No outfall in the registry is matched to this water.
Launches
Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, ODbL). · Portsmouth Harbor on OpenBoatLaunch
Sources covering this water
- Maine Healthy Beaches live GeoJSON, sampling sites (mapdata_site.geojson) · updating · last answered Nov 2, 2026, 6:55 AM EST
7 events placed on this water in this build.