Garren Brook, Trebandy
EA name: GARREN BROOK, TREBANDY (also listed as “RSN1822 GARREN BROOK, TREBANDY”)
Environment Agency sampling point MD-RSN1822 · 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
- 24 Aug 2026, 13:4538 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 4 Oct 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 354180, 220115As published, to the nearest 1 m. Open in a map
- River, by its own name
- Garren Brook
- River, by the map
- Garren BrookPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Marstow Mill On the Garren Brook · 4.9 km along the river
- Why it was sampled
- Monitoring (national agency policy) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.5%
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 96.5 | 96.5% |
| 30 Jul 2026, 10:38 | 92.1 | 92.1% |
| 24 Jun 2026, 11:16 | 92.3 | 92.3% |
| 27 May 2026, 10:51 | 96.5 | 96.5% |
| 1 Apr 2026, 12:25 | 101.7 | 101.7% |
| 6 Mar 2026, 12:23 | 97.8 | 97.8% |
| 4 Feb 2026, 11:31 | 99.2 | 99.2% |
| 6 Jan 2026, 12:12 | 103.2 | 103.2% |
| 11 Dec 2025, 11:02 | 99.9 | 99.9% |
| 25 Nov 2025, 10:43 | 96.8 | 96.8% |
| 13 Oct 2025, 09:44 | 89 | 89% |
| 4 Sep 2025, 10:15 | 88.7 | 88.7% |
| 21 Aug 2025, 12:00 | 93.3 | 93.3% |
| 31 Jul 2025, 10:13 | 86.5 | 86.5% |
| 4 Jun 2025, 11:05 | 97.2 | 97.2% |
| 6 May 2025, 14:03 | 103.2 | 103.2% |
| 24 Apr 2025, 12:55 | 105.7 | 105.7% |
| 19 Mar 2025, 10:42 | 99.4 | 99.4% |
| 24 Feb 2025, 11:47 | 97.2 | 97.2% |
| 3 Dec 2024, 12:32 | 101.6 | 101.6% |
| 13 Nov 2024, 09:34 | 92.1 | 92.1% |
| 8 Oct 2024, 12:32 | 98.2 | 98.2% |
| 6 Sep 2024, 14:17 | 97 | 97% |
| 5 Jul 2024, 10:43 | 89.5 | 89.5% |
| 5 Jun 2024, 13:49 | 100 | 100% |
| 15 May 2024, 12:43 | 99.4 | 99.4% |
| 12 Apr 2024, 14:00 | 106.1 | 106.1% |
| 6 Mar 2024, 11:16 | 99.8 | 99.8% |
| 12 Feb 2024, 12:20 | 99.6 | 99.6% |
| 29 Jan 2024, 13:36 | 95.9 | 95.9% |
| 7 Dec 2023, 11:16 | 100.8 | 100.8% |
| 7 Nov 2023, 09:25 | 97.6 | 97.6% |
| 4 Oct 2023, 10:39 | 88.4 | 88.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.72 mg/l
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 9.72 | 9.72 mg/l |
| 30 Jul 2026, 10:38 | 8.66 | 8.66 mg/l |
| 24 Jun 2026, 11:16 | 8.57 | 8.57 mg/l |
| 27 May 2026, 10:51 | 9.36 | 9.36 mg/l |
| 1 Apr 2026, 12:25 | 11.2 | 11.2 mg/l |
| 6 Mar 2026, 12:23 | 11 | 11 mg/l |
| 4 Feb 2026, 11:31 | 12 | 12 mg/l |
| 6 Jan 2026, 12:12 | 13.5 | 13.5 mg/l |
| 11 Dec 2025, 11:02 | 11.5 | 11.5 mg/l |
| 25 Nov 2025, 10:43 | 11.5 | 11.5 mg/l |
| 13 Oct 2025, 09:44 | 9.61 | 9.61 mg/l |
| 4 Sep 2025, 10:15 | 8.88 | 8.88 mg/l |
| 21 Aug 2025, 12:00 | 9.42 | 9.42 mg/l |
| 31 Jul 2025, 10:13 | 8.35 | 8.35 mg/l |
| 4 Jun 2025, 11:05 | 10.1 | 10.1 mg/l |
| 6 May 2025, 14:03 | 11.3 | 11.3 mg/l |
| 24 Apr 2025, 12:55 | 11.4 | 11.4 mg/l |
| 19 Mar 2025, 10:42 | 12.2 | 12.2 mg/l |
| 24 Feb 2025, 11:47 | 11.2 | 11.2 mg/l |
| 3 Dec 2024, 12:32 | 11.7 | 11.7 mg/l |
| 13 Nov 2024, 09:34 | 10.5 | 10.5 mg/l |
| 8 Oct 2024, 12:32 | 10.4 | 10.4 mg/l |
| 6 Sep 2024, 14:17 | 9.73 | 9.73 mg/l |
| 5 Jul 2024, 10:43 | 9.28 | 9.28 mg/l |
| 5 Jun 2024, 13:49 | 10.7 | 10.7 mg/l |
| 15 May 2024, 12:43 | 10.2 | 10.2 mg/l |
| 12 Apr 2024, 14:00 | 11.2 | 11.2 mg/l |
| 6 Mar 2024, 11:16 | 12.1 | 12.1 mg/l |
| 12 Feb 2024, 12:20 | 11.9 | 11.9 mg/l |
| 29 Jan 2024, 13:36 | 10.7 | 10.7 mg/l |
| 7 Dec 2023, 11:16 | 12 | 12 mg/l |
| 7 Nov 2023, 09:25 | 11.5 | 11.5 mg/l |
| 4 Oct 2023, 10:39 | 9.17 | 9.17 mg/l |
Water temperature
code 0076 · °C
14.9 °C
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 14.9 | 14.9 °C |
| 30 Jul 2026, 10:38 | 18.2 | 18.2 °C |
| 24 Jun 2026, 11:16 | 18.8 | 18.8 °C |
| 27 May 2026, 10:51 | 16.7 | 16.7 °C |
| 1 Apr 2026, 12:25 | 11 | 11 °C |
| 6 Mar 2026, 12:23 | 9.9 | 9.9 °C |
| 4 Feb 2026, 11:31 | 7 | 7 °C |
| 6 Jan 2026, 12:12 | 4 | 4 °C |
| 11 Dec 2025, 11:02 | 9.1 | 9.1 °C |
| 25 Nov 2025, 10:43 | 7.8 | 7.8 °C |
| 13 Oct 2025, 09:44 | 11.8 | 11.8 °C |
| 4 Sep 2025, 10:15 | 15.2 | 15.2 °C |
| 21 Aug 2025, 12:00 | 14.8 | 14.8 °C |
| 31 Jul 2025, 10:13 | 16.9 | 16.9 °C |
| 4 Jun 2025, 11:05 | 13.6 | 13.6 °C |
| 6 May 2025, 14:03 | 11.3 | 11.3 °C |
| 24 Apr 2025, 12:55 | 11.9 | 11.9 °C |
| 19 Mar 2025, 10:42 | 6.5 | 6.5 °C |
| 24 Feb 2025, 11:47 | 8.9 | 8.9 °C |
| 3 Dec 2024, 12:32 | 9 | 9 °C |
| 13 Nov 2024, 09:34 | 9.4 | 9.4 °C |
| 8 Oct 2024, 12:32 | 12.5 | 12.5 °C |
| 6 Sep 2024, 14:17 | 15.1 | 15.1 °C |
| 5 Jul 2024, 10:43 | 13.6 | 13.6 °C |
| 5 Jun 2024, 13:49 | 12.3 | 12.3 °C |
| 15 May 2024, 12:43 | 14 | 14 °C |
| 12 Apr 2024, 14:00 | 13 | 13 °C |
| 6 Mar 2024, 11:16 | 7 | 7 °C |
| 12 Feb 2024, 12:20 | 7.7 | 7.7 °C |
| 29 Jan 2024, 13:36 | 10.5 | 10.5 °C |
| 7 Dec 2023, 11:16 | 7.7 | 7.7 °C |
| 7 Nov 2023, 09:25 | 8.3 | 8.3 °C |
| 4 Oct 2023, 10:39 | 13.6 | 13.6 °C |
pH
code 0061
8.06
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 8.06 | 8.06 |
| 30 Jul 2026, 10:38 | 8.03 | 8.03 |
| 24 Jun 2026, 11:16 | 8.12 | 8.12 |
| 27 May 2026, 10:51 | 8.15 | 8.15 |
| 1 Apr 2026, 12:25 | 8.25 | 8.25 |
| 6 Mar 2026, 12:23 | 8.19 | 8.19 |
| 4 Feb 2026, 11:31 | 8.05 | 8.05 |
| 6 Jan 2026, 12:12 | 8.23 | 8.23 |
| 11 Dec 2025, 11:02 | 8.12 | 8.12 |
| 25 Nov 2025, 10:43 | 8.06 | 8.06 |
| 13 Oct 2025, 09:44 | 7.73 | 7.73 |
| 4 Sep 2025, 10:15 | 8.09 | 8.09 |
| 21 Aug 2025, 12:00 | 8.24 | 8.24 |
| 31 Jul 2025, 10:13 | 8.03 | 8.03 |
| 4 Jun 2025, 11:05 | 8.1 | 8.1 |
| 6 May 2025, 14:03 | 8.22 | 8.22 |
| 24 Apr 2025, 12:55 | 8.28 | 8.28 |
| 19 Mar 2025, 10:42 | 8.14 | 8.14 |
| 24 Feb 2025, 11:47 | 8.04 | 8.04 |
| 3 Dec 2024, 12:32 | 8.06 | 8.06 |
| 13 Nov 2024, 09:34 | 7.96 | 7.96 |
| 8 Oct 2024, 12:32 | 8 | 8 |
| 6 Sep 2024, 14:17 | 8.05 | 8.05 |
| 5 Jul 2024, 10:43 | 8.22 | 8.22 |
| 5 Jun 2024, 13:49 | 8.27 | 8.27 |
| 15 May 2024, 12:43 | 8.07 | 8.07 |
| 12 Apr 2024, 14:00 | 7.96 | 7.96 |
| 6 Mar 2024, 11:16 | 8 | 8 |
| 12 Feb 2024, 12:20 | 8.09 | 8.09 |
| 29 Jan 2024, 13:36 | 8.23 | 8.23 |
| 7 Dec 2023, 11:16 | 7.93 | 7.93 |
| 7 Nov 2023, 09:25 | 8.22 | 8.22 |
| 4 Oct 2023, 10:39 | 8.06 | 8.06 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2026, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jun 2026, 11:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 May 2026, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Apr 2026, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2026, 12:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 11:31 | 0.047 | 0.047 mg/l |
| 6 Jan 2026, 12:12 | 0.19 | 0.19 mg/l |
| 11 Dec 2025, 11:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Nov 2025, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Oct 2025, 09:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2025, 12:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Jul 2025, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2025, 11:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 14:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Apr 2025, 12:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2025, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Feb 2025, 11:47 | 0.16 | 0.16 mg/l |
| 3 Dec 2024, 12:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Nov 2024, 09:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2024, 12:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Sep 2024, 14:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jul 2024, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jun 2024, 13:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 May 2024, 12:43 | 0.089 | 0.089 mg/l |
| 12 Apr 2024, 14:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2024, 11:16 | 0.033 | 0.033 mg/l |
| 12 Feb 2024, 12:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jan 2024, 13:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Dec 2023, 11:16 | 0.031 | 0.031 mg/l |
| 7 Nov 2023, 09:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Oct 2023, 10:39 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
8.59 mg/l
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 8.59 | 8.59 mg/l |
| 30 Jul 2026, 10:38 | 8.78 | 8.78 mg/l |
| 24 Jun 2026, 11:16 | 8.78 | 8.78 mg/l |
| 27 May 2026, 10:51 | 9.57 | 9.57 mg/l |
| 1 Apr 2026, 12:25 | 9.88 | 9.88 mg/l |
| 6 Mar 2026, 12:23 | 9.19 | 9.19 mg/l |
| 4 Feb 2026, 11:31 | 7.98 | 7.98 mg/l |
| 6 Jan 2026, 12:12 | 9.98 | 9.98 mg/l |
| 11 Dec 2025, 11:02 | 8.58 | 8.58 mg/l |
| 25 Nov 2025, 10:43 | 8.79 | 8.79 mg/l |
| 13 Oct 2025, 09:44 | 7.39 | 7.39 mg/l |
| 4 Sep 2025, 10:15 | 7.89 | 7.89 mg/l |
| 21 Aug 2025, 12:00 | 8.29 | 8.29 mg/l |
| 31 Jul 2025, 10:13 | 7.98 | 7.98 mg/l |
| 4 Jun 2025, 11:05 | 9.28 | 9.28 mg/l |
| 6 May 2025, 14:03 | 9.28 | 9.28 mg/l |
| 24 Apr 2025, 12:55 | 9.07 | 9.07 mg/l |
| 19 Mar 2025, 10:42 | 9.99 | 9.99 mg/l |
| 24 Feb 2025, 11:47 | 4.27 | 4.27 mg/l |
| 3 Dec 2024, 12:32 | 8.18 | 8.18 mg/l |
| 13 Nov 2024, 09:34 | 9.98 | 9.98 mg/l |
| 8 Oct 2024, 12:32 | 7.48 | 7.48 mg/l |
| 6 Sep 2024, 14:17 | 9.09 | 9.09 mg/l |
| 5 Jul 2024, 10:43 | 9.69 | 9.69 mg/l |
| 5 Jun 2024, 13:49 | 9.78 | 9.78 mg/l |
| 15 May 2024, 12:43 | 8.63 | 8.63 mg/l |
| 12 Apr 2024, 14:00 | 8.68 | 8.68 mg/l |
| 6 Mar 2024, 11:16 | 9.28 | 9.28 mg/l |
| 12 Feb 2024, 12:20 | 9.58 | 9.58 mg/l |
| 29 Jan 2024, 13:36 | 9.98 | 9.98 mg/l |
| 7 Dec 2023, 11:16 | 9.88 | 9.88 mg/l |
| 7 Nov 2023, 09:25 | 9.08 | 9.08 mg/l |
| 4 Oct 2023, 10:39 | 8.48 | 8.48 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.055 mg/l
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 0.055 | 0.055 mg/l |
| 30 Jul 2026, 10:38 | 0.07 | 0.07 mg/l |
| 24 Jun 2026, 11:16 | 0.087 | 0.087 mg/l |
| 27 May 2026, 10:51 | 0.39 | 0.39 mg/l |
| 1 Apr 2026, 12:25 | 0.12 | 0.12 mg/l |
| 6 Mar 2026, 12:23 | 0.051 | 0.051 mg/l |
| 4 Feb 2026, 11:31 | 0.11 | 0.11 mg/l |
| 6 Jan 2026, 12:12 | 0.072 | 0.072 mg/l |
| 11 Dec 2025, 11:02 | 0.11 | 0.11 mg/l |
| 25 Nov 2025, 10:43 | 0.066 | 0.066 mg/l |
| 13 Oct 2025, 09:44 | 0.047 | 0.047 mg/l |
| 4 Sep 2025, 10:15 | 0.056 | 0.056 mg/l |
| 21 Aug 2025, 12:00 | 0.061 | 0.061 mg/l |
| 31 Jul 2025, 10:13 | 0.088 | 0.088 mg/l |
| 4 Jun 2025, 11:05 | 0.048 | 0.048 mg/l |
| 6 May 2025, 14:03 | 0.029 | 0.029 mg/l |
| 24 Apr 2025, 12:55 | 0.018 | 0.018 mg/l |
| 19 Mar 2025, 10:42 | 0.2 | 0.2 mg/l |
| 24 Feb 2025, 11:47 | 0.19 | 0.19 mg/l |
| 3 Dec 2024, 12:32 | 0.08 | 0.08 mg/l |
| 13 Nov 2024, 09:34 | 0.035 | 0.035 mg/l |
| 8 Oct 2024, 12:32 | 0.16 | 0.16 mg/l |
| 6 Sep 2024, 14:17 | 0.067 | 0.067 mg/l |
| 5 Jul 2024, 10:43 | 0.047 | 0.047 mg/l |
| 5 Jun 2024, 13:49 | 0.05 | 0.05 mg/l |
| 15 May 2024, 12:43 | 0.16 | 0.16 mg/l |
| 12 Apr 2024, 14:00 | 0.03 | 0.03 mg/l |
| 6 Mar 2024, 11:16 | 0.049 | 0.049 mg/l |
| 12 Feb 2024, 12:20 | 0.071 | 0.071 mg/l |
| 29 Jan 2024, 13:36 | 0.055 | 0.055 mg/l |
| 7 Dec 2023, 11:16 | 0.081 | 0.081 mg/l |
| 7 Nov 2023, 09:25 | 0.075 | 0.075 mg/l |
| 4 Oct 2023, 10:39 | 0.1 | 0.1 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
652 µS/cm
Sampled 24 Aug 2026, 38 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:45 | 652 | 652 µS/cm |
| 30 Jul 2026, 10:38 | 648 | 648 µS/cm |
| 24 Jun 2026, 11:16 | 638 | 638 µS/cm |
| 27 May 2026, 10:51 | 640 | 640 µS/cm |
| 1 Apr 2026, 12:25 | 597 | 597 µS/cm |
| 6 Mar 2026, 12:23 | 573 | 573 µS/cm |
| 4 Feb 2026, 11:31 | 490 | 490 µS/cm |
| 6 Jan 2026, 12:12 | 621 | 621 µS/cm |
| 11 Dec 2025, 11:02 | 482 | 482 µS/cm |
| 25 Nov 2025, 10:43 | 603 | 603 µS/cm |
| 13 Oct 2025, 09:44 | 656 | 656 µS/cm |
| 4 Sep 2025, 10:15 | 643 | 643 µS/cm |
| 21 Aug 2025, 12:00 | 646 | 646 µS/cm |
| 31 Jul 2025, 10:13 | 642 | 642 µS/cm |
| 4 Jun 2025, 11:05 | 641 | 641 µS/cm |
| 6 May 2025, 14:03 | 633 | 633 µS/cm |
| 24 Apr 2025, 12:55 | 616 | 616 µS/cm |
| 19 Mar 2025, 10:42 | 620 | 620 µS/cm |
| 24 Feb 2025, 11:47 | 324 | 324 µS/cm |
| 3 Dec 2024, 12:32 | 530 | 530 µS/cm |
| 13 Nov 2024, 09:34 | 649 | 649 µS/cm |
| 8 Oct 2024, 12:32 | 526 | 526 µS/cm |
| 6 Sep 2024, 14:17 | 619 | 619 µS/cm |
| 5 Jul 2024, 10:43 | 637 | 637 µS/cm |
| 5 Jun 2024, 13:49 | 627 | 627 µS/cm |
| 15 May 2024, 12:43 | 570 | 570 µS/cm |
| 12 Apr 2024, 14:00 | 573 | 573 µS/cm |
| 6 Mar 2024, 11:16 | 567 | 567 µS/cm |
| 12 Feb 2024, 12:20 | 550 | 550 µS/cm |
| 29 Jan 2024, 13:36 | 601 | 601 µS/cm |
| 7 Dec 2023, 11:16 | 567 | 567 µS/cm |
| 7 Nov 2023, 09:25 | 607 | 607 µS/cm |
| 4 Oct 2023, 10:39 | 649 | 649 µS/cm |
Everything measured here
19 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 19 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Aug 2026 | 96.5% 24 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Aug 2026 | 9.72 mg/l 24 Aug 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Aug 2026 | 14.9 °C 24 Aug 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Aug 2026 | 8.06 24 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Aug 2026 | below 0.03 mg/l 24 Aug 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Aug 2026 | 8.59 mg/l 24 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Aug 2026 | 0.055 mg/l 24 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Aug 2026 | 652 µS/cm 24 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Aug 2026 | 270 mg/l 24 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Aug 2026 | below 0.00078 mg/l 24 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 33 | Oct 2023 – Aug 2026 | 2 mg/l 24 Aug 2026 |
| Chloride 0172 | River water | 33 | Oct 2023 – Aug 2026 | 24 mg/l 24 Aug 2026 |
| Flow Type 2896 | River water | 21 | Jul 2024 – Aug 2026 | Moderate Flow 24 Aug 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Aug 2026 | 0.01 mg/l 24 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 33 | Oct 2023 – Aug 2026 | 9 mg/l 24 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Aug 2026 | 8.6 mg/l 24 Aug 2026 |
| Phosphorus, Total as P 0348 | River water | 33 | Oct 2023 – Aug 2026 | 0.064 mg/l 24 Aug 2026 |
| Silica, reactive as SiO2 0182 | River water | 33 | Oct 2023 – Aug 2026 | 6.6 mg/l 24 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 9 | Dec 2025 – Aug 2026 | below 3 mg/l 24 Aug 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.