River Seaton at Seaton Beach
EA name: RIVER SEATON AT SEATON BEACH
Environment Agency sampling point SW-81310201 · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 12 May 2026, 12:475 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 29 since 8 Jan 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 230329, 54506As published, to the nearest 1 m. Open in a map
- River, by its own name
- Seaton
- River, by the map
- River SeatonPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- TREBROWNBRIDGE 5.9 km along the riverTrebrownbridge On the River Seaton · 5.9 km along the river
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
94.1%
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 94.1 | 94.1% |
| 23 Apr 2026, 11:19 | 98.5 | 98.5% |
| 16 Mar 2026, 12:38 | 100.3 | 100.3% |
| 10 Feb 2026, 10:58 | 94.7 | 94.7% |
| 12 Jan 2026, 13:38 | 97.4 | 97.4% |
| 15 Dec 2025, 10:29 | 89.9 | 89.9% |
| 10 Nov 2025, 10:10 | 95.6 | 95.6% |
| 2 Oct 2025, 14:46 | 93.5 | 93.5% |
| 3 Sep 2025, 11:42 | 92.5 | 92.5% |
| 5 Aug 2025, 09:55 | 89.7 | 89.7% |
| 25 Jul 2025, 11:00 | 91.8 | 91.8% |
| 17 Jun 2025, 09:16 | 94 | 94% |
| 29 May 2025, 14:05 | 94.5 | 94.5% |
| 11 Apr 2025, 11:44 | 101.4 | 101.4% |
| 28 Mar 2025, 12:35 | 107.8 | 107.8% |
| 25 Feb 2025, 11:39 | 95.6 | 95.6% |
| 23 Jan 2025, 12:48 | 97.4 | 97.4% |
| 10 Dec 2024, 09:30 | 99 | 99% |
| 26 Nov 2024, 12:26 | 96.2 | 96.2% |
| 24 Oct 2024, 13:26 | 89.7 | 89.7% |
| 20 Sep 2024, 12:20 | 91.3 | 91.3% |
| 18 Jul 2024, 10:56 | 94.8 | 94.8% |
| 17 Jun 2024, 11:59 | 96.9 | 96.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.3 mg/l
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 10.3 | 10.3 mg/l |
| 23 Apr 2026, 11:19 | 10.8 | 10.8 mg/l |
| 16 Mar 2026, 12:38 | 11.2 | 11.2 mg/l |
| 10 Feb 2026, 10:58 | 10.5 | 10.5 mg/l |
| 12 Jan 2026, 13:38 | 10.7 | 10.7 mg/l |
| 15 Dec 2025, 10:29 | 9.87 | 9.87 mg/l |
| 10 Nov 2025, 10:10 | 10.3 | 10.3 mg/l |
| 2 Oct 2025, 14:46 | 9.87 | 9.87 mg/l |
| 3 Sep 2025, 11:42 | 9.05 | 9.05 mg/l |
| 5 Aug 2025, 09:55 | 9.1 | 9.1 mg/l |
| 25 Jul 2025, 11:00 | 9.27 | 9.27 mg/l |
| 17 Jun 2025, 09:16 | 9.79 | 9.79 mg/l |
| 29 May 2025, 14:05 | 9.48 | 9.48 mg/l |
| 11 Apr 2025, 11:44 | 11.6 | 11.6 mg/l |
| 28 Mar 2025, 12:35 | 11.9 | 11.9 mg/l |
| 25 Feb 2025, 11:39 | 10.8 | 10.8 mg/l |
| 23 Jan 2025, 12:48 | 11.3 | 11.3 mg/l |
| 10 Dec 2024, 09:30 | 11.4 | 11.4 mg/l |
| 26 Nov 2024, 12:26 | 10.9 | 10.9 mg/l |
| 24 Oct 2024, 13:26 | 9.45 | 9.45 mg/l |
| 20 Sep 2024, 12:20 | 9.24 | 9.24 mg/l |
| 18 Jul 2024, 10:56 | 9.64 | 9.64 mg/l |
| 17 Jun 2024, 11:59 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
11.2 °C
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 11.2 | 11.2 °C |
| 23 Apr 2026, 11:19 | 11.3 | 11.3 °C |
| 16 Mar 2026, 12:38 | 10.3 | 10.3 °C |
| 10 Feb 2026, 10:58 | 10.6 | 10.6 °C |
| 12 Jan 2026, 13:38 | 10.9 | 10.9 °C |
| 15 Dec 2025, 10:29 | 11.1 | 11.1 °C |
| 10 Nov 2025, 10:10 | 12.1 | 12.1 °C |
| 2 Oct 2025, 14:46 | 12.8 | 12.8 °C |
| 3 Sep 2025, 11:42 | 16.3 | 16.3 °C |
| 5 Aug 2025, 09:55 | 14.6 | 14.6 °C |
| 25 Jul 2025, 11:00 | 14.8 | 14.8 °C |
| 17 Jun 2025, 09:16 | 13.4 | 13.4 °C |
| 29 May 2025, 14:05 | 15.1 | 15.1 °C |
| 11 Apr 2025, 11:44 | 9.4 | 9.4 °C |
| 28 Mar 2025, 12:35 | 10.8 | 10.8 °C |
| 25 Feb 2025, 11:39 | 9.8 | 9.8 °C |
| 23 Jan 2025, 12:48 | 8.6 | 8.6 °C |
| 10 Dec 2024, 09:30 | 9 | 9 °C |
| 26 Nov 2024, 12:26 | 9.9 | 9.9 °C |
| 24 Oct 2024, 13:26 | 12.9 | 12.9 °C |
| 20 Sep 2024, 12:20 | 14.7 | 14.7 °C |
| 18 Jul 2024, 10:56 | 14.5 | 14.5 °C |
| 17 Jun 2024, 11:59 | 12.4 | 12.4 °C |
pH
code 0061
7.7
Sampled 12 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 7.7 | 7.7 |
| 23 Apr 2026, 11:19 | 7.74 | 7.74 |
| 16 Mar 2026, 12:38 | 7.65 | 7.65 |
| 10 Feb 2026, 10:58 | 7.41 | 7.41 |
| 12 Jan 2026, 13:38 | 7.66 | 7.66 |
| 15 Dec 2025, 10:29 | 7.26 | 7.26 |
| 10 Nov 2025, 10:10 | 7.57 | 7.57 |
| 2 Oct 2025, 14:46 | 7.6 | 7.6 |
| 3 Sep 2025, 11:42 | 7.52 | 7.52 |
| 5 Aug 2025, 09:55 | 7.52 | 7.52 |
| 25 Jul 2025, 11:00 | 7.74 | 7.74 |
| 17 Jun 2025, 09:16 | 7.56 | 7.56 |
| 29 May 2025, 14:05 | 7.66 | 7.66 |
| 11 Apr 2025, 11:44 | 7.81 | 7.81 |
| 28 Mar 2025, 12:35 | 7.93 | 7.93 |
| 25 Feb 2025, 11:39 | 7.57 | 7.57 |
| 23 Jan 2025, 12:48 | 7.79 | 7.79 |
| 10 Dec 2024, 09:30 | 7.44 | 7.44 |
| 26 Nov 2024, 12:26 | 7.5 | 7.5 |
| 24 Oct 2024, 13:26 | 7.48 | 7.48 |
| 20 Sep 2024, 12:20 | 7.96 | 7.96 |
| 18 Jul 2024, 10:56 | 7.25 | 7.25 |
| 17 Jun 2024, 11:59 | 7.7 | 7.7 |
| 18 Mar 2024, 11:52 | 7.57 | 7.57 |
| 6 Mar 2024, 11:45 | 7.59 | 7.59 |
| 12 Feb 2024, 10:43 | 7.48 | 7.48 |
| 5 Feb 2024, 12:00 | 7.58 | 7.58 |
| 19 Jan 2024, 11:31 | 7.53 | 7.53 |
| 8 Jan 2024, 11:33 | 7.43 | 7.43 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.031 mg/l
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 0.031 | 0.031 mg/l |
| 23 Apr 2026, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Mar 2026, 12:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2026, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jan 2026, 13:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Dec 2025, 10:29 | 0.038 | 0.038 mg/l |
| 10 Nov 2025, 10:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Oct 2025, 14:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2025, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Aug 2025, 09:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jul 2025, 11:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2025, 09:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2025, 14:05 | 0.051 | 0.051 mg/l |
| 11 Apr 2025, 11:44 | 0.031 | 0.031 mg/l |
| 28 Mar 2025, 12:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2025, 11:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jan 2025, 12:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Dec 2024, 09:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Nov 2024, 12:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Oct 2024, 13:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Sep 2024, 12:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2024, 10:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 11:59 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.9 mg/l
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 3.9 | 3.9 mg/l |
| 23 Apr 2026, 11:19 | 3.79 | 3.79 mg/l |
| 16 Mar 2026, 12:38 | 3.7 | 3.7 mg/l |
| 10 Feb 2026, 10:58 | 3.7 | 3.7 mg/l |
| 12 Jan 2026, 13:38 | 3.9 | 3.9 mg/l |
| 15 Dec 2025, 10:29 | 2.7 | 2.7 mg/l |
| 10 Nov 2025, 10:10 | 3.8 | 3.8 mg/l |
| 2 Oct 2025, 14:46 | 3.8 | 3.8 mg/l |
| 3 Sep 2025, 11:42 | 2.4 | 2.4 mg/l |
| 5 Aug 2025, 09:55 | 3.6 | 3.6 mg/l |
| 25 Jul 2025, 11:00 | 3.8 | 3.8 mg/l |
| 17 Jun 2025, 09:16 | 3.59 | 3.59 mg/l |
| 29 May 2025, 14:05 | 3.68 | 3.68 mg/l |
| 11 Apr 2025, 11:44 | 4.09 | 4.09 mg/l |
| 28 Mar 2025, 12:35 | 4.1 | 4.1 mg/l |
| 25 Feb 2025, 11:39 | 3.7 | 3.7 mg/l |
| 23 Jan 2025, 12:48 | 3.8 | 3.8 mg/l |
| 10 Dec 2024, 09:30 | 3.9 | 3.9 mg/l |
| 26 Nov 2024, 12:26 | 3.8 | 3.8 mg/l |
| 24 Oct 2024, 13:26 | 3.8 | 3.8 mg/l |
| 20 Sep 2024, 12:20 | 3.8 | 3.8 mg/l |
| 18 Jul 2024, 10:56 | 3.6 | 3.6 mg/l |
| 17 Jun 2024, 11:59 | 3.8 | 3.8 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 0.11 | 0.11 mg/l |
| 23 Apr 2026, 11:19 | 0.051 | 0.051 mg/l |
| 16 Mar 2026, 12:38 | 0.033 | 0.033 mg/l |
| 10 Feb 2026, 10:58 | 0.023 | 0.023 mg/l |
| 12 Jan 2026, 13:38 | 0.032 | 0.032 mg/l |
| 15 Dec 2025, 10:29 | 0.06 | 0.06 mg/l |
| 10 Nov 2025, 10:10 | 0.046 | 0.046 mg/l |
| 2 Oct 2025, 14:46 | 0.073 | 0.073 mg/l |
| 3 Sep 2025, 11:42 | 0.12 | 0.12 mg/l |
| 5 Aug 2025, 09:55 | 0.13 | 0.13 mg/l |
| 25 Jul 2025, 11:00 | 0.12 | 0.12 mg/l |
| 17 Jun 2025, 09:16 | 0.11 | 0.11 mg/l |
| 29 May 2025, 14:05 | 0.12 | 0.12 mg/l |
| 11 Apr 2025, 11:44 | 0.098 | 0.098 mg/l |
| 28 Mar 2025, 12:35 | 0.051 | 0.051 mg/l |
| 25 Feb 2025, 11:39 | 0.025 | 0.025 mg/l |
| 23 Jan 2025, 12:48 | 0.033 | 0.033 mg/l |
| 10 Dec 2024, 09:30 | 0.023 | 0.023 mg/l |
| 26 Nov 2024, 12:26 | 0.025 | 0.025 mg/l |
| 24 Oct 2024, 13:26 | 0.032 | 0.032 mg/l |
| 20 Sep 2024, 12:20 | 0.11 | 0.11 mg/l |
| 18 Jul 2024, 10:56 | 0.065 | 0.065 mg/l |
| 17 Jun 2024, 11:59 | 0.067 | 0.067 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
258 µS/cm
Sampled 12 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:47 | 258 | 258 µS/cm |
| 23 Apr 2026, 11:19 | 255 | 255 µS/cm |
| 16 Mar 2026, 12:38 | 230 | 230 µS/cm |
| 10 Feb 2026, 10:58 | 216 | 216 µS/cm |
| 12 Jan 2026, 13:38 | 234 | 234 µS/cm |
| 15 Dec 2025, 10:29 | 181 | 181 µS/cm |
| 10 Nov 2025, 10:10 | 235 | 235 µS/cm |
| 2 Oct 2025, 14:46 | 268 | 268 µS/cm |
| 3 Sep 2025, 11:42 | 224 | 224 µS/cm |
| 5 Aug 2025, 09:55 | 265 | 265 µS/cm |
| 25 Jul 2025, 11:00 | 270 | 270 µS/cm |
| 17 Jun 2025, 09:16 | 267 | 267 µS/cm |
| 29 May 2025, 14:05 | 262 | 262 µS/cm |
| 11 Apr 2025, 11:44 | 263 | 263 µS/cm |
| 28 Mar 2025, 12:35 | 260 | 260 µS/cm |
| 25 Feb 2025, 11:39 | 227 | 227 µS/cm |
| 23 Jan 2025, 12:48 | 241 | 241 µS/cm |
| 10 Dec 2024, 09:30 | 236 | 236 µS/cm |
| 26 Nov 2024, 12:26 | 223 | 223 µS/cm |
| 24 Oct 2024, 13:26 | 236 | 236 µS/cm |
| 20 Sep 2024, 12:20 | 318 | 318 µS/cm |
| 18 Jul 2024, 10:56 | 257 | 257 µS/cm |
| 17 Jun 2024, 11:59 | 248 | 248 µS/cm |
Everything measured here
23 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 23 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Jun 2024 – May 2026 | 94.1% 12 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jun 2024 – May 2026 | 10.3 mg/l 12 May 2026 |
| Temperature of Water 0076 | River water | 23 | Jun 2024 – May 2026 | 11.2 °C 12 May 2026 |
| pH 0061 | River water | 29 | Jan 2024 – May 2026 | 7.7 12 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jun 2024 – May 2026 | 0.031 mg/l 12 May 2026 |
| Nitrate as N 0117 | River water | 23 | Jun 2024 – May 2026 | 3.9 mg/l 12 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jun 2024 – May 2026 | 0.11 mg/l 12 May 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jun 2024 – May 2026 | 258 µS/cm 12 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Jun 2024 – May 2026 | 66 mg/l 12 May 2026 |
| Aluminium, Dissolved 6037 | River water | 6 | Jan 2024 – Mar 2024 | 18 µg/l 18 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jun 2024 – May 2026 | 0.00031 mg/l 12 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 1.1 mg/l 12 May 2026 |
| Cadmium, Dissolved 0106 | River water | 6 | Jan 2024 – Mar 2024 | 0.032 µg/l 18 Mar 2024 |
| Calcium, Dissolved 0239 | River water | 6 | Jan 2024 – Mar 2024 | 21 mg/l 18 Mar 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 6 | Jan 2024 – Mar 2024 | 1.1 mg/l 18 Mar 2024 |
| Chromium, Dissolved 3409 | River water | 6 | Jan 2024 – Mar 2024 | below 0.5 µg/l 18 Mar 2024 |
| Copper, Dissolved 6450 | River water | 6 | Jan 2024 – Mar 2024 | 6.5 µg/l 18 Mar 2024 |
| Lead, Dissolved 0052 | River water | 6 | Jan 2024 – Mar 2024 | 0.22 µg/l 18 Mar 2024 |
| Magnesium, Dissolved 0235 | River water | 6 | Jan 2024 – Mar 2024 | 4.8 mg/l 18 Mar 2024 |
| Nickel, Dissolved 3410 | River water | 6 | Jan 2024 – Mar 2024 | below 0.5 µg/l 18 Mar 2024 |
| Nitrite as N 0118 | River water | 23 | Jun 2024 – May 2026 | below 0.004 mg/l 12 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jun 2024 – May 2026 | 3.9 mg/l 12 May 2026 |
| Zinc, Dissolved 3408 | River water | 6 | Jan 2024 – Mar 2024 | 6.2 µg/l 18 Mar 2024 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.