River Rother Selham Bridge
EA name: R ROTHER SELHAM BRIDGE (also listed as “RIVER ROTHER SELHAM BRIDGE”)
Environment Agency sampling point SO-F0002895 · 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
- 1 Sep 2026, 10:3630 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 since 1 Nov 2023 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 493500, 121260As published, to the nearest 10 m. Open in a map
- River, by its own name
- Rother
- River, by the map
- River RotherPlaced on the river its name gives, 8 m from the line.
- Next gauge downstream
- Hardham On the River Rother · 15 km along the riverBeside Lodsbridge: too close to say above or below.
- Nearest gauge upstream
- Iping Mill On the River Rother · 16 km along the river
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.4%
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 93.4 | 93.4% |
| 10 Aug 2026, 12:09 | 95.6 | 95.6% |
| 14 Jul 2026, 14:19 | 95.3 | 95.3% |
| 1 Jun 2026, 14:56 | 95.9 | 95.9% |
| 28 May 2026, 10:19 | 95.2 | 95.2% |
| 29 Apr 2026, 13:21 | 102 | 102% |
| 25 Mar 2026, 14:20 | 98.8 | 98.8% |
| 3 Feb 2026, 11:52 | 93.2 | 93.2% |
| 13 Jan 2026, 15:12 | 97.5 | 97.5% |
| 17 Dec 2025, 10:49 | 98 | 98% |
| 20 Nov 2025, 09:39 | 100 | 100% |
| 31 Oct 2025, 10:04 | 94.8 | 94.8% |
| 28 Oct 2025, 14:12 | 95.6 | 95.6% |
| 28 Aug 2025, 10:26 | 95.8 | 95.8% |
| 24 Jul 2025, 09:22 | 92.8 | 92.8% |
| 16 Jun 2025, 13:02 | 98.9 | 98.9% |
| 21 May 2025, 11:17 | 96.7 | 96.7% |
| 8 Apr 2025, 09:03 | 99 | 99% |
| 11 Mar 2025, 11:53 | 100 | 100% |
| 6 Feb 2025, 09:18 | 99.3 | 99.3% |
| 22 Jan 2025, 13:21 | 99.6 | 99.6% |
| 6 Dec 2024, 10:11 | 91.2 | 91.2% |
| 7 Nov 2024, 14:50 | 96.1 | 96.1% |
| 15 Oct 2024, 10:57 | 93.1 | 93.1% |
| 9 Sep 2024, 10:42 | 95.6 | 95.6% |
| 1 Aug 2024, 12:00 | 100.7 | 100.7% |
| 5 Jul 2024, 10:17 | 96.8 | 96.8% |
| 3 Jun 2024, 10:50 | 100.7 | 100.7% |
| 5 Mar 2024, 09:44 | 96.9 | 96.9% |
| 4 Jan 2024, 10:07 | 91.7 | 91.7% |
| 1 Nov 2023, 11:49 | 95.1 | 95.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.25 mg/l
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 9.25 | 9.25 mg/l |
| 10 Aug 2026, 12:09 | 9.35 | 9.35 mg/l |
| 14 Jul 2026, 14:19 | 8.78 | 8.78 mg/l |
| 1 Jun 2026, 14:56 | 9.38 | 9.38 mg/l |
| 28 May 2026, 10:19 | 9.1 | 9.1 mg/l |
| 29 Apr 2026, 13:21 | 10.8 | 10.8 mg/l |
| 25 Mar 2026, 14:20 | 11.2 | 11.2 mg/l |
| 3 Feb 2026, 11:52 | 11.1 | 11.1 mg/l |
| 13 Jan 2026, 15:12 | 11.4 | 11.4 mg/l |
| 17 Dec 2025, 10:49 | 11.6 | 11.6 mg/l |
| 20 Nov 2025, 09:39 | 13 | 13 mg/l |
| 31 Oct 2025, 10:04 | 10.3 | 10.3 mg/l |
| 28 Oct 2025, 14:12 | 10.4 | 10.4 mg/l |
| 28 Aug 2025, 10:26 | 9.68 | 9.68 mg/l |
| 24 Jul 2025, 09:22 | 9.12 | 9.12 mg/l |
| 16 Jun 2025, 13:02 | 9.69 | 9.69 mg/l |
| 21 May 2025, 11:17 | 10 | 10 mg/l |
| 8 Apr 2025, 09:03 | 11.6 | 11.6 mg/l |
| 11 Mar 2025, 11:53 | 11.3 | 11.3 mg/l |
| 6 Feb 2025, 09:18 | 12.3 | 12.3 mg/l |
| 22 Jan 2025, 13:21 | 12.1 | 12.1 mg/l |
| 6 Dec 2024, 10:11 | 10.5 | 10.5 mg/l |
| 7 Nov 2024, 14:50 | 10.6 | 10.6 mg/l |
| 15 Oct 2024, 10:57 | 10.1 | 10.1 mg/l |
| 9 Sep 2024, 10:42 | 9.74 | 9.74 mg/l |
| 1 Aug 2024, 12:00 | 9.57 | 9.57 mg/l |
| 5 Jul 2024, 10:17 | 9.8 | 9.8 mg/l |
| 3 Jun 2024, 10:50 | 10.2 | 10.2 mg/l |
| 5 Mar 2024, 09:44 | 11.6 | 11.6 mg/l |
| 4 Jan 2024, 10:07 | 10.8 | 10.8 mg/l |
| 1 Nov 2023, 11:49 | 10.2 | 10.2 mg/l |
Water temperature
code 0076 · °C
15.7 °C
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 15.7 | 15.7 °C |
| 10 Aug 2026, 12:09 | 16.3 | 16.3 °C |
| 14 Jul 2026, 14:19 | 19.2 | 19.2 °C |
| 1 Jun 2026, 14:56 | 16.3 | 16.3 °C |
| 28 May 2026, 10:19 | 17.4 | 17.4 °C |
| 29 Apr 2026, 13:21 | 12.6 | 12.6 °C |
| 25 Mar 2026, 14:20 | 9.8 | 9.8 °C |
| 3 Feb 2026, 11:52 | 7.8 | 7.8 °C |
| 13 Jan 2026, 15:12 | 8.5 | 8.5 °C |
| 17 Dec 2025, 10:49 | 7.9 | 7.9 °C |
| 20 Nov 2025, 09:39 | 4.3 | 4.3 °C |
| 31 Oct 2025, 10:04 | 11.5 | 11.5 °C |
| 28 Oct 2025, 14:12 | 11.4 | 11.4 °C |
| 28 Aug 2025, 10:26 | 14.8 | 14.8 °C |
| 24 Jul 2025, 09:22 | 16.1 | 16.1 °C |
| 16 Jun 2025, 13:02 | 16.2 | 16.2 °C |
| 21 May 2025, 11:17 | 13.6 | 13.6 °C |
| 8 Apr 2025, 09:03 | 8.3 | 8.3 °C |
| 11 Mar 2025, 11:53 | 9.9 | 9.9 °C |
| 6 Feb 2025, 09:18 | 6 | 6 °C |
| 22 Jan 2025, 13:21 | 6.8 | 6.8 °C |
| 6 Dec 2024, 10:11 | 9 | 9 °C |
| 7 Nov 2024, 14:50 | 11 | 11 °C |
| 15 Oct 2024, 10:57 | 11.6 | 11.6 °C |
| 9 Sep 2024, 10:42 | 14.4 | 14.4 °C |
| 1 Aug 2024, 12:00 | 17.7 | 17.7 °C |
| 5 Jul 2024, 10:17 | 14.7 | 14.7 °C |
| 3 Jun 2024, 10:50 | 14.6 | 14.6 °C |
| 5 Mar 2024, 09:44 | 7.6 | 7.6 °C |
| 4 Jan 2024, 10:07 | 8.3 | 8.3 °C |
| 1 Nov 2023, 11:49 | 12 | 12 °C |
pH
code 0061
7.97
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 7.97 | 7.97 |
| 10 Aug 2026, 12:09 | 7.78 | 7.78 |
| 14 Jul 2026, 14:19 | 7.66 | 7.66 |
| 1 Jun 2026, 14:56 | 8.09 | 8.09 |
| 28 May 2026, 10:19 | 7.81 | 7.81 |
| 29 Apr 2026, 13:21 | 7.94 | 7.94 |
| 25 Mar 2026, 14:20 | 8.02 | 8.02 |
| 3 Feb 2026, 11:52 | 7.66 | 7.66 |
| 13 Jan 2026, 15:12 | 7.68 | 7.68 |
| 17 Dec 2025, 10:49 | 7.78 | 7.78 |
| 20 Nov 2025, 09:39 | 7.78 | 7.78 |
| 31 Oct 2025, 10:04 | 7.61 | 7.61 |
| 28 Oct 2025, 14:12 | 7.46 | 7.46 |
| 28 Aug 2025, 10:26 | 7.69 | 7.69 |
| 24 Jul 2025, 09:22 | 8.01 | 8.01 |
| 16 Jun 2025, 13:02 | 7.7 | 7.7 |
| 21 May 2025, 11:17 | 7.81 | 7.81 |
| 8 Apr 2025, 09:03 | 8.05 | 8.05 |
| 11 Mar 2025, 11:53 | 7.99 | 7.99 |
| 6 Feb 2025, 09:18 | 7.94 | 7.94 |
| 22 Jan 2025, 13:21 | 7.88 | 7.88 |
| 6 Dec 2024, 10:11 | 7.85 | 7.85 |
| 7 Nov 2024, 14:50 | 7.79 | 7.79 |
| 15 Oct 2024, 10:57 | 7.51 | 7.51 |
| 9 Sep 2024, 10:42 | 7.66 | 7.66 |
| 1 Aug 2024, 12:00 | 8.19 | 8.19 |
| 5 Jul 2024, 10:17 | 8.73 | 8.73 |
| 3 Jun 2024, 10:50 | 8.38 | 8.38 |
| 5 Mar 2024, 09:44 | 7.83 | 7.83 |
| 4 Jan 2024, 10:07 | 7.74 | 7.74 |
| 1 Nov 2023, 11:49 | 7.92 | 7.92 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 1 Sep 2026, 30 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Aug 2026, 12:09 | 0.044 | 0.044 mg/l |
| 14 Jul 2026, 14:19 | 0.05 | 0.05 mg/l |
| 1 Jun 2026, 14:56 | 0.054 | 0.054 mg/l |
| 28 May 2026, 10:19 | 0.051 | 0.051 mg/l |
| 29 Apr 2026, 13:21 | 0.11 | 0.11 mg/l |
| 25 Mar 2026, 14:20 | 0.069 | 0.069 mg/l |
| 3 Feb 2026, 11:52 | 0.065 | 0.065 mg/l |
| 13 Jan 2026, 15:12 | 0.16 | 0.16 mg/l |
| 17 Dec 2025, 10:49 | 0.17 | 0.17 mg/l |
| 20 Nov 2025, 09:39 | 0.11 | 0.11 mg/l |
| 31 Oct 2025, 10:04 | 0.069 | 0.069 mg/l |
| 28 Oct 2025, 14:12 | 0.13 | 0.13 mg/l |
| 28 Aug 2025, 10:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jul 2025, 09:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jun 2025, 13:02 | 0.056 | 0.056 mg/l |
| 21 May 2025, 11:17 | 0.049 | 0.049 mg/l |
| 8 Apr 2025, 09:03 | 0.05 | 0.05 mg/l |
| 11 Mar 2025, 11:53 | 0.1 | 0.1 mg/l |
| 6 Feb 2025, 09:18 | 0.079 | 0.079 mg/l |
| 22 Jan 2025, 13:21 | 0.11 | 0.11 mg/l |
| 7 Nov 2024, 14:50 | 0.036 | 0.036 mg/l |
| 15 Oct 2024, 10:57 | 0.074 | 0.074 mg/l |
| 9 Sep 2024, 10:42 | 0.042 | 0.042 mg/l |
| 1 Aug 2024, 12:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jul 2024, 10:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2024, 10:50 | 0.046 | 0.046 mg/l |
| 5 Mar 2024, 09:44 | 0.066 | 0.066 mg/l |
| 4 Jan 2024, 10:07 | 0.048 | 0.048 mg/l |
| 1 Nov 2023, 11:49 | 0.068 | 0.068 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.28 mg/l
Sampled 1 Sep 2026, 30 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 4.28 | 4.28 mg/l |
| 10 Aug 2026, 12:09 | 4.46 | 4.46 mg/l |
| 14 Jul 2026, 14:19 | 4.76 | 4.76 mg/l |
| 1 Jun 2026, 14:56 | 4.86 | 4.86 mg/l |
| 28 May 2026, 10:19 | 4.46 | 4.46 mg/l |
| 29 Apr 2026, 13:21 | 4.26 | 4.26 mg/l |
| 25 Mar 2026, 14:20 | 4.08 | 4.08 mg/l |
| 3 Feb 2026, 11:52 | 2.69 | 2.69 mg/l |
| 13 Jan 2026, 15:12 | 2.49 | 2.49 mg/l |
| 17 Dec 2025, 10:49 | 3.97 | 3.97 mg/l |
| 20 Nov 2025, 09:39 | 4.07 | 4.07 mg/l |
| 31 Oct 2025, 10:04 | 4.26 | 4.26 mg/l |
| 28 Oct 2025, 14:12 | 4.55 | 4.55 mg/l |
| 28 Aug 2025, 10:26 | 4.78 | 4.78 mg/l |
| 24 Jul 2025, 09:22 | 4.58 | 4.58 mg/l |
| 16 Jun 2025, 13:02 | 4.77 | 4.77 mg/l |
| 21 May 2025, 11:17 | 4.77 | 4.77 mg/l |
| 8 Apr 2025, 09:03 | 4.58 | 4.58 mg/l |
| 11 Mar 2025, 11:53 | 4.28 | 4.28 mg/l |
| 6 Feb 2025, 09:18 | 4.28 | 4.28 mg/l |
| 22 Jan 2025, 13:21 | 4.57 | 4.57 mg/l |
| 7 Nov 2024, 14:50 | 4.48 | 4.48 mg/l |
| 15 Oct 2024, 10:57 | 2.37 | 2.37 mg/l |
| 9 Sep 2024, 10:42 | 5.08 | 5.08 mg/l |
| 1 Aug 2024, 12:00 | 4.99 | 4.99 mg/l |
| 5 Jul 2024, 10:17 | 4.88 | 4.88 mg/l |
| 3 Jun 2024, 10:50 | 4.48 | 4.48 mg/l |
| 5 Mar 2024, 09:44 | 2.98 | 2.98 mg/l |
| 4 Jan 2024, 10:07 | 2.78 | 2.78 mg/l |
| 1 Nov 2023, 11:49 | 2.69 | 2.69 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.057 mg/l
Sampled 1 Sep 2026, 30 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 0.057 | 0.057 mg/l |
| 10 Aug 2026, 12:09 | 0.046 | 0.046 mg/l |
| 14 Jul 2026, 14:19 | 0.073 | 0.073 mg/l |
| 1 Jun 2026, 14:56 | 0.07 | 0.07 mg/l |
| 28 May 2026, 10:19 | 0.072 | 0.072 mg/l |
| 29 Apr 2026, 13:21 | 0.064 | 0.064 mg/l |
| 25 Mar 2026, 14:20 | 0.061 | 0.061 mg/l |
| 3 Feb 2026, 11:52 | 0.11 | 0.11 mg/l |
| 13 Jan 2026, 15:12 | 0.11 | 0.11 mg/l |
| 17 Dec 2025, 10:49 | 0.067 | 0.067 mg/l |
| 20 Nov 2025, 09:39 | 0.071 | 0.071 mg/l |
| 31 Oct 2025, 10:04 | 0.064 | 0.064 mg/l |
| 28 Oct 2025, 14:12 | 0.075 | 0.075 mg/l |
| 28 Aug 2025, 10:26 | 0.057 | 0.057 mg/l |
| 24 Jul 2025, 09:22 | 0.075 | 0.075 mg/l |
| 16 Jun 2025, 13:02 | 0.086 | 0.086 mg/l |
| 21 May 2025, 11:17 | 0.078 | 0.078 mg/l |
| 8 Apr 2025, 09:03 | 0.034 | 0.034 mg/l |
| 11 Mar 2025, 11:53 | 0.048 | 0.048 mg/l |
| 6 Feb 2025, 09:18 | 0.058 | 0.058 mg/l |
| 22 Jan 2025, 13:21 | 0.056 | 0.056 mg/l |
| 7 Nov 2024, 14:50 | 0.068 | 0.068 mg/l |
| 15 Oct 2024, 10:57 | 0.15 | 0.15 mg/l |
| 9 Sep 2024, 10:42 | 0.11 | 0.11 mg/l |
| 1 Aug 2024, 12:00 | 0.072 | 0.072 mg/l |
| 5 Jul 2024, 10:17 | 0.062 | 0.062 mg/l |
| 3 Jun 2024, 10:50 | 0.062 | 0.062 mg/l |
| 5 Mar 2024, 09:44 | 0.068 | 0.068 mg/l |
| 4 Jan 2024, 10:07 | 0.13 | 0.13 mg/l |
| 1 Nov 2023, 11:49 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
463 µS/cm
Sampled 1 Sep 2026, 30 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 10:36 | 463 | 463 µS/cm |
| 10 Aug 2026, 12:09 | 381 | 381 µS/cm |
| 14 Jul 2026, 14:19 | 393 | 393 µS/cm |
| 1 Jun 2026, 14:56 | 403 | 403 µS/cm |
| 29 Apr 2026, 13:21 | 412 | 412 µS/cm |
| 25 Mar 2026, 14:20 | 437 | 437 µS/cm |
| 3 Feb 2026, 11:52 | 334 | 334 µS/cm |
| 13 Jan 2026, 15:12 | 315 | 315 µS/cm |
| 17 Dec 2025, 10:49 | 434 | 434 µS/cm |
| 20 Nov 2025, 09:39 | 425 | 425 µS/cm |
| 31 Oct 2025, 10:04 | 375 | 375 µS/cm |
| 28 Oct 2025, 14:12 | 372 | 372 µS/cm |
| 28 Aug 2025, 10:26 | 363 | 363 µS/cm |
| 24 Jul 2025, 09:22 | 473 | 473 µS/cm |
| 16 Jun 2025, 13:02 | 390 | 390 µS/cm |
| 21 May 2025, 11:17 | 415 | 415 µS/cm |
| 8 Apr 2025, 09:03 | 426 | 426 µS/cm |
| 11 Mar 2025, 11:53 | 431 | 431 µS/cm |
| 6 Feb 2025, 09:18 | 429 | 429 µS/cm |
| 22 Jan 2025, 13:21 | 439 | 439 µS/cm |
| 6 Dec 2024, 10:11 | 248 | 248 µS/cm |
| 7 Nov 2024, 14:50 | 416 | 416 µS/cm |
| 15 Oct 2024, 10:57 | 273 | 273 µS/cm |
| 9 Sep 2024, 10:42 | 348 | 348 µS/cm |
| 1 Aug 2024, 12:00 | 526 | 526 µS/cm |
| 5 Jul 2024, 10:17 | 399 | 399 µS/cm |
| 3 Jun 2024, 10:50 | 422 | 422 µS/cm |
| 5 Mar 2024, 09:44 | 363 | 363 µS/cm |
| 4 Jan 2024, 10:07 | 338 | 338 µS/cm |
| 1 Nov 2023, 11:49 | 337 | 337 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Nov 2023 – Sep 2026 | 93.4% 1 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Nov 2023 – Sep 2026 | 9.25 mg/l 1 Sep 2026 |
| Temperature of Water 0076 | River water | 31 | Nov 2023 – Sep 2026 | 15.7 °C 1 Sep 2026 |
| pH 0061 | River water | 31 | Nov 2023 – Sep 2026 | 7.97 1 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Nov 2023 – Sep 2026 | below 0.03 mg/l 1 Sep 2026 |
| Nitrate as N 0117 | River water | 30 | Nov 2023 – Sep 2026 | 4.28 mg/l 1 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Nov 2023 – Sep 2026 | 0.057 mg/l 1 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Nov 2023 – Sep 2026 | 463 µS/cm 1 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Nov 2023 – Sep 2026 | 91 mg/l 1 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Nov 2023 – Sep 2026 | below 0.00078 mg/l 1 Sep 2026 |
| Nitrite as N 0118 | River water | 30 | Nov 2023 – Sep 2026 | 0.024 mg/l 1 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Nov 2023 – Sep 2026 | 4.3 mg/l 1 Sep 2026 |
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.