Waldron Ghyll Cowden Hall Bridge
EA name: WALDRON GHYLL COWDEN HALL BR (also listed as “RIVER CUCKMERE TRIBUTARIES WALDRON GHYLL COWDEN HALL BRIDGE”)
Environment Agency sampling point SO-F0002108 · 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
- 7 Sep 2026, 12:3224 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 since 8 Nov 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 559500, 116100As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedGrid reference only to 100 m and no line carries the name it gives, so position alone cannot choose. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (25 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
70.8%
Sampled 7 Sep 2026, 24 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 70.8 | 70.8% |
| 24 Aug 2026, 10:04 | 71.2 | 71.2% |
| 1 Jul 2026, 10:14 | 63.7 | 63.7% |
| 5 Jun 2026, 09:08 | 72.5 | 72.5% |
| 5 May 2026, 10:19 | 68.5 | 68.5% |
| 22 Apr 2026, 08:44 | 79.9 | 79.9% |
| 11 Mar 2026, 11:04 | 94.2 | 94.2% |
| 4 Feb 2026, 11:29 | 96.5 | 96.5% |
| 6 Jan 2026, 13:55 | 92 | 92% |
| 2 Dec 2025, 12:11 | 94.5 | 94.5% |
| 3 Nov 2025, 11:17 | 92.5 | 92.5% |
| 14 Oct 2025, 13:18 | 71.5 | 71.5% |
| 9 Sep 2025, 12:03 | 71.8 | 71.8% |
| 7 Aug 2025, 14:08 | 80.7 | 80.7% |
| 16 Jul 2025, 13:30 | 68.7 | 68.7% |
| 2 Jun 2025, 12:28 | 79.5 | 79.5% |
| 6 May 2025, 10:46 | 80.5 | 80.5% |
| 2 Apr 2025, 10:01 | 87.4 | 87.4% |
| 5 Mar 2025, 12:47 | 95.6 | 95.6% |
| 4 Feb 2025, 10:27 | 95.3 | 95.3% |
| 7 Jan 2025, 10:04 | 96.1 | 96.1% |
| 6 Dec 2024, 14:20 | 94.9 | 94.9% |
| 19 Nov 2024, 10:22 | 93.3 | 93.3% |
| 30 Oct 2024, 09:13 | 90.9 | 90.9% |
| 3 Sep 2024, 12:49 | 72.7 | 72.7% |
| 5 Aug 2024, 09:15 | 70.4 | 70.4% |
| 8 Jul 2024, 12:59 | 83.6 | 83.6% |
| 5 Jun 2024, 15:43 | 86.3 | 86.3% |
| 1 Mar 2024, 13:53 | 96.9 | 96.9% |
| 2 Jan 2024, 12:45 | 98.1 | 98.1% |
| 8 Nov 2023, 13:25 | 89 | 89% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.73 mg/l
Sampled 7 Sep 2026, 24 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 6.73 | 6.73 mg/l |
| 24 Aug 2026, 10:04 | 6.99 | 6.99 mg/l |
| 1 Jul 2026, 10:14 | 6.1 | 6.1 mg/l |
| 5 Jun 2026, 09:08 | 7.39 | 7.39 mg/l |
| 5 May 2026, 10:19 | 7.09 | 7.09 mg/l |
| 22 Apr 2026, 08:44 | 9.11 | 9.11 mg/l |
| 11 Mar 2026, 11:04 | 10.4 | 10.4 mg/l |
| 4 Feb 2026, 11:29 | 11.3 | 11.3 mg/l |
| 6 Jan 2026, 13:55 | 12.4 | 12.4 mg/l |
| 2 Dec 2025, 12:11 | 10.8 | 10.8 mg/l |
| 3 Nov 2025, 11:17 | 9.97 | 9.97 mg/l |
| 14 Oct 2025, 13:18 | 7.35 | 7.35 mg/l |
| 9 Sep 2025, 12:03 | 7.17 | 7.17 mg/l |
| 7 Aug 2025, 14:08 | 7.88 | 7.88 mg/l |
| 16 Jul 2025, 13:30 | 6.55 | 6.55 mg/l |
| 2 Jun 2025, 12:28 | 7.98 | 7.98 mg/l |
| 6 May 2025, 10:46 | 8.98 | 8.98 mg/l |
| 2 Apr 2025, 10:01 | 10.1 | 10.1 mg/l |
| 5 Mar 2025, 12:47 | 11.4 | 11.4 mg/l |
| 4 Feb 2025, 10:27 | 11.5 | 11.5 mg/l |
| 7 Jan 2025, 10:04 | 12.2 | 12.2 mg/l |
| 6 Dec 2024, 14:20 | 10.8 | 10.8 mg/l |
| 19 Nov 2024, 10:22 | 10.6 | 10.6 mg/l |
| 30 Oct 2024, 09:13 | 9.51 | 9.51 mg/l |
| 3 Sep 2024, 12:49 | 6.91 | 6.91 mg/l |
| 5 Aug 2024, 09:15 | 6.87 | 6.87 mg/l |
| 8 Jul 2024, 12:59 | 8.54 | 8.54 mg/l |
| 5 Jun 2024, 15:43 | 8.66 | 8.66 mg/l |
| 1 Mar 2024, 13:53 | 11.6 | 11.6 mg/l |
| 2 Jan 2024, 12:45 | 10.7 | 10.7 mg/l |
| 8 Nov 2023, 13:25 | 9.68 | 9.68 mg/l |
Water temperature
code 0076 · °C
17.7 °C
Sampled 7 Sep 2026, 24 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 17.7 | 17.7 °C |
| 24 Aug 2026, 10:04 | 16.1 | 16.1 °C |
| 1 Jul 2026, 10:14 | 17.3 | 17.3 °C |
| 5 Jun 2026, 09:08 | 14.4 | 14.4 °C |
| 5 May 2026, 10:19 | 13.7 | 13.7 °C |
| 22 Apr 2026, 08:44 | 9.5 | 9.5 °C |
| 11 Mar 2026, 11:04 | 10.9 | 10.9 °C |
| 4 Feb 2026, 11:29 | 8.3 | 8.3 °C |
| 6 Jan 2026, 13:55 | 3 | 3 °C |
| 2 Dec 2025, 12:11 | 9.5 | 9.5 °C |
| 3 Nov 2025, 11:17 | 11.9 | 11.9 °C |
| 14 Oct 2025, 13:18 | 14 | 14 °C |
| 9 Sep 2025, 12:03 | 15.3 | 15.3 °C |
| 7 Aug 2025, 14:08 | 16.4 | 16.4 °C |
| 16 Jul 2025, 13:30 | 17.5 | 17.5 °C |
| 2 Jun 2025, 12:28 | 15.1 | 15.1 °C |
| 6 May 2025, 10:46 | 10.4 | 10.4 °C |
| 2 Apr 2025, 10:01 | 9.1 | 9.1 °C |
| 5 Mar 2025, 12:47 | 7.6 | 7.6 °C |
| 4 Feb 2025, 10:27 | 7.1 | 7.1 °C |
| 7 Jan 2025, 10:04 | 5.3 | 5.3 °C |
| 6 Dec 2024, 14:20 | 9.5 | 9.5 °C |
| 19 Nov 2024, 10:22 | 9.8 | 9.8 °C |
| 30 Oct 2024, 09:13 | 13.2 | 13.2 °C |
| 3 Sep 2024, 12:49 | 17.7 | 17.7 °C |
| 5 Aug 2024, 09:15 | 16.4 | 16.4 °C |
| 8 Jul 2024, 12:59 | 14.3 | 14.3 °C |
| 5 Jun 2024, 15:43 | 15.1 | 15.1 °C |
| 1 Mar 2024, 13:53 | 7.4 | 7.4 °C |
| 2 Jan 2024, 12:45 | 11.3 | 11.3 °C |
| 8 Nov 2023, 13:25 | 11.5 | 11.5 °C |
pH
code 0061
6.75
Sampled 7 Sep 2026, 24 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 6.75 | 6.75 |
| 24 Aug 2026, 10:04 | 7.32 | 7.32 |
| 1 Jul 2026, 10:14 | 6.96 | 6.96 |
| 5 Jun 2026, 09:08 | 6.99 | 6.99 |
| 5 May 2026, 10:19 | 6.73 | 6.73 |
| 22 Apr 2026, 08:44 | 7.09 | 7.09 |
| 11 Mar 2026, 11:04 | 7.35 | 7.35 |
| 4 Feb 2026, 11:29 | 7.42 | 7.42 |
| 6 Jan 2026, 13:55 | 7.02 | 7.02 |
| 2 Dec 2025, 12:11 | 7.28 | 7.28 |
| 3 Nov 2025, 11:17 | 7.22 | 7.22 |
| 14 Oct 2025, 13:18 | 6.93 | 6.93 |
| 9 Sep 2025, 12:03 | 7.07 | 7.07 |
| 7 Aug 2025, 14:08 | 7.18 | 7.18 |
| 16 Jul 2025, 13:30 | 6.78 | 6.78 |
| 2 Jun 2025, 12:28 | 6.95 | 6.95 |
| 6 May 2025, 10:46 | 7.11 | 7.11 |
| 2 Apr 2025, 10:01 | 6.96 | 6.96 |
| 5 Mar 2025, 12:47 | 7.17 | 7.17 |
| 4 Feb 2025, 10:27 | 7.3 | 7.3 |
| 7 Jan 2025, 10:04 | 7.26 | 7.26 |
| 6 Dec 2024, 14:20 | 7.18 | 7.18 |
| 19 Nov 2024, 10:22 | 7.41 | 7.41 |
| 30 Oct 2024, 09:13 | 7.33 | 7.33 |
| 3 Sep 2024, 12:49 | 7.05 | 7.05 |
| 5 Aug 2024, 09:15 | 7 | 7 |
| 8 Jul 2024, 12:59 | 7.15 | 7.15 |
| 5 Jun 2024, 15:43 | 7.11 | 7.11 |
| 1 Mar 2024, 13:53 | 7.3 | 7.3 |
| 2 Jan 2024, 12:45 | 7.47 | 7.47 |
| 8 Nov 2023, 13:25 | 7.07 | 7.07 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.072 mg/l
Sampled 7 Sep 2026, 24 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 0.072 | 0.072 mg/l |
| 24 Aug 2026, 10:04 | 0.053 | 0.053 mg/l |
| 1 Jul 2026, 10:14 | 0.13 | 0.13 mg/l |
| 5 Jun 2026, 09:08 | 0.1 | 0.1 mg/l |
| 5 May 2026, 10:19 | 0.43 | 0.43 mg/l |
| 22 Apr 2026, 08:44 | 0.24 | 0.24 mg/l |
| 11 Mar 2026, 11:04 | 0.16 | 0.16 mg/l |
| 4 Feb 2026, 11:29 | 0.23 | 0.23 mg/l |
| 6 Jan 2026, 13:55 | 0.59 | 0.59 mg/l |
| 2 Dec 2025, 12:11 | 0.19 | 0.19 mg/l |
| 3 Nov 2025, 11:17 | 0.053 | 0.053 mg/l |
| 14 Oct 2025, 13:18 | 0.08 | 0.08 mg/l |
| 9 Sep 2025, 12:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 14:08 | 0.062 | 0.062 mg/l |
| 16 Jul 2025, 13:30 | 0.38 | 0.38 mg/l |
| 2 Jun 2025, 12:28 | 0.087 | 0.087 mg/l |
| 6 May 2025, 10:46 | 0.13 | 0.13 mg/l |
| 2 Apr 2025, 10:01 | 0.12 | 0.12 mg/l |
| 5 Mar 2025, 12:47 | 0.082 | 0.082 mg/l |
| 4 Feb 2025, 10:27 | 0.16 | 0.16 mg/l |
| 7 Jan 2025, 10:04 | 0.11 | 0.11 mg/l |
| 19 Nov 2024, 10:22 | 0.27 | 0.27 mg/l |
| 30 Oct 2024, 09:13 | 0.071 | 0.071 mg/l |
| 3 Sep 2024, 12:49 | 0.055 | 0.055 mg/l |
| 5 Aug 2024, 09:15 | 0.072 | 0.072 mg/l |
| 8 Jul 2024, 12:59 | 0.072 | 0.072 mg/l |
| 5 Jun 2024, 15:43 | 0.059 | 0.059 mg/l |
| 1 Mar 2024, 13:53 | 0.47 | 0.47 mg/l |
| 2 Jan 2024, 12:45 | 0.35 | 0.35 mg/l |
| 8 Nov 2023, 13:25 | 1.6 | 1.6 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18.9 mg/l
Sampled 7 Sep 2026, 24 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 18.9 | 18.9 mg/l |
| 24 Aug 2026, 10:04 | 21 | 21 mg/l |
| 1 Jul 2026, 10:14 | 21.9 | 21.9 mg/l |
| 5 Jun 2026, 09:08 | 13.9 | 13.9 mg/l |
| 5 May 2026, 10:19 | 18.7 | 18.7 mg/l |
| 22 Apr 2026, 08:44 | 18.9 | 18.9 mg/l |
| 11 Mar 2026, 11:04 | 6.03 | 6.03 mg/l |
| 4 Feb 2026, 11:29 | 2.79 | 2.79 mg/l |
| 6 Jan 2026, 13:55 | 14.9 | 14.9 mg/l |
| 2 Dec 2025, 12:11 | 3.17 | 3.17 mg/l |
| 3 Nov 2025, 11:17 | 5.57 | 5.57 mg/l |
| 14 Oct 2025, 13:18 | 16.9 | 16.9 mg/l |
| 9 Sep 2025, 12:03 | 0.256 | 0.256 mg/l |
| 7 Aug 2025, 14:08 | 14.9 | 14.9 mg/l |
| 16 Jul 2025, 13:30 | 21.8 | 21.8 mg/l |
| 2 Jun 2025, 12:28 | 13.9 | 13.9 mg/l |
| 6 May 2025, 10:46 | 14.9 | 14.9 mg/l |
| 2 Apr 2025, 10:01 | 13 | 13 mg/l |
| 5 Mar 2025, 12:47 | 11 | 11 mg/l |
| 4 Feb 2025, 10:27 | 6.52 | 6.52 mg/l |
| 7 Jan 2025, 10:04 | 4.16 | 4.16 mg/l |
| 19 Nov 2024, 10:22 | 5.99 | 5.99 mg/l |
| 30 Oct 2024, 09:13 | 8.35 | 8.35 mg/l |
| 3 Sep 2024, 12:49 | 11 | 11 mg/l |
| 5 Aug 2024, 09:15 | 18 | 18 mg/l |
| 8 Jul 2024, 12:59 | 9.36 | 9.36 mg/l |
| 5 Jun 2024, 15:43 | 18 | 18 mg/l |
| 1 Mar 2024, 13:53 | 1.48 | 1.48 mg/l |
| 2 Jan 2024, 12:45 | 1.09 | 1.09 mg/l |
| 8 Nov 2023, 13:25 | 2.15 | 2.15 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.6 mg/l
Sampled 7 Sep 2026, 24 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 0.6 | 0.6 mg/l |
| 24 Aug 2026, 10:04 | 0.6 | 0.6 mg/l |
| 1 Jul 2026, 10:14 | 0.39 | 0.39 mg/l |
| 5 Jun 2026, 09:08 | 0.4 | 0.4 mg/l |
| 5 May 2026, 10:19 | 0.38 | 0.38 mg/l |
| 22 Apr 2026, 08:44 | 0.34 | 0.34 mg/l |
| 11 Mar 2026, 11:04 | 0.21 | 0.21 mg/l |
| 4 Feb 2026, 11:29 | 0.16 | 0.16 mg/l |
| 6 Jan 2026, 13:55 | 0.31 | 0.31 mg/l |
| 2 Dec 2025, 12:11 | 0.21 | 0.21 mg/l |
| 3 Nov 2025, 11:17 | 0.31 | 0.31 mg/l |
| 14 Oct 2025, 13:18 | 0.58 | 0.58 mg/l |
| 9 Sep 2025, 12:03 | 0.019 | 0.019 mg/l |
| 7 Aug 2025, 14:08 | 0.63 | 0.63 mg/l |
| 16 Jul 2025, 13:30 | 0.77 | 0.77 mg/l |
| 2 Jun 2025, 12:28 | 0.61 | 0.61 mg/l |
| 6 May 2025, 10:46 | 0.83 | 0.83 mg/l |
| 2 Apr 2025, 10:01 | 0.25 | 0.25 mg/l |
| 5 Mar 2025, 12:47 | 0.46 | 0.46 mg/l |
| 4 Feb 2025, 10:27 | 0.36 | 0.36 mg/l |
| 7 Jan 2025, 10:04 | 0.17 | 0.17 mg/l |
| 19 Nov 2024, 10:22 | 0.32 | 0.32 mg/l |
| 30 Oct 2024, 09:13 | 0.26 | 0.26 mg/l |
| 3 Sep 2024, 12:49 | 0.37 | 0.37 mg/l |
| 5 Aug 2024, 09:15 | 0.44 | 0.44 mg/l |
| 8 Jul 2024, 12:59 | 0.36 | 0.36 mg/l |
| 5 Jun 2024, 15:43 | 1 | 1 mg/l |
| 1 Mar 2024, 13:53 | 0.097 | 0.097 mg/l |
| 2 Jan 2024, 12:45 | 0.12 | 0.12 mg/l |
| 8 Nov 2023, 13:25 | 0.29 | 0.29 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
673 µS/cm
Sampled 7 Sep 2026, 24 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:32 | 673 | 673 µS/cm |
| 24 Aug 2026, 10:04 | 866 | 866 µS/cm |
| 1 Jul 2026, 10:14 | 703 | 703 µS/cm |
| 5 Jun 2026, 09:08 | 430 | 430 µS/cm |
| 5 May 2026, 10:19 | 587 | 587 µS/cm |
| 22 Apr 2026, 08:44 | 586 | 586 µS/cm |
| 11 Mar 2026, 11:04 | 374 | 374 µS/cm |
| 4 Feb 2026, 11:29 | 263 | 263 µS/cm |
| 6 Jan 2026, 13:55 | 557 | 557 µS/cm |
| 2 Dec 2025, 12:11 | 273 | 273 µS/cm |
| 3 Nov 2025, 11:17 | 352 | 352 µS/cm |
| 14 Oct 2025, 13:18 | 633 | 633 µS/cm |
| 9 Sep 2025, 12:03 | 605 | 605 µS/cm |
| 7 Aug 2025, 14:08 | 550 | 550 µS/cm |
| 16 Jul 2025, 13:30 | 657 | 657 µS/cm |
| 2 Jun 2025, 12:28 | 530 | 530 µS/cm |
| 6 May 2025, 10:46 | 537 | 537 µS/cm |
| 2 Apr 2025, 10:01 | 477 | 477 µS/cm |
| 5 Mar 2025, 12:47 | 432 | 432 µS/cm |
| 4 Feb 2025, 10:27 | 387 | 387 µS/cm |
| 7 Jan 2025, 10:04 | 341 | 341 µS/cm |
| 6 Dec 2024, 14:20 | 277 | 277 µS/cm |
| 19 Nov 2024, 10:22 | 342 | 342 µS/cm |
| 30 Oct 2024, 09:13 | 395 | 395 µS/cm |
| 3 Sep 2024, 12:49 | 536 | 536 µS/cm |
| 5 Aug 2024, 09:15 | 590 | 590 µS/cm |
| 8 Jul 2024, 12:59 | 413 | 413 µS/cm |
| 5 Jun 2024, 15:43 | 573 | 573 µS/cm |
| 1 Mar 2024, 13:53 | 217 | 217 µS/cm |
| 2 Jan 2024, 12:45 | 203 | 203 µS/cm |
| 8 Nov 2023, 13:25 | 269 | 269 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 | 70.8% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Nov 2023 – Sep 2026 | 6.73 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 31 | Nov 2023 – Sep 2026 | 17.7 °C 7 Sep 2026 |
| pH 0061 | River water | 31 | Nov 2023 – Sep 2026 | 6.75 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Nov 2023 – Sep 2026 | 0.072 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 30 | Nov 2023 – Sep 2026 | 18.9 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Nov 2023 – Sep 2026 | 0.6 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Nov 2023 – Sep 2026 | 673 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Nov 2023 – Sep 2026 | 49 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Nov 2023 – Sep 2026 | 0.00013 mg/l 7 Sep 2026 |
| Nitrite as N 0118 | River water | 30 | Nov 2023 – Sep 2026 | 0.13 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Nov 2023 – Sep 2026 | 19 mg/l 7 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.