Toppesfield Brook A604 Road Bridge
EA name: TOPPESFIELD BK.A604 RD.BR.
Environment Agency sampling point AN-CL0814 · 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
- 17 Sep 2026, 14:0814 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 36 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 Environmental monitoring statutory (EU directives) · results completed 19 Sep 2026
- Where
- National Grid 576229, 237722As published, to the nearest 1 m. Open in a map
- River, by its own name
- Toppesfield Brook
- River, by the map
- Toppesfield BrookPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- Poole Street On the River Colne · 2.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (30 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Results here were completed a median of 10 days after the sample was taken (2 to 42 days, 13 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
52.4%
Sampled 17 Sep 2026, 14 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | 52.4 | 52.4% |
| 14 Aug 2026, 13:38 | 32.1 | 32.1% |
| 9 Jul 2026, 11:44 | 27.1 | 27.1% |
| 5 Jun 2026, 11:20 | 40.5 | 40.5% |
| 5 May 2026, 12:45 | 72.5 | 72.5% |
| 15 Apr 2026, 10:20 | 79.6 | 79.6% |
| 9 Mar 2026, 14:29 | 98.3 | 98.3% |
| 2 Feb 2026, 10:59 | 87.5 | 87.5% |
| 5 Jan 2026, 11:22 | 84.5 | 84.5% |
| 4 Dec 2025, 14:08 | 84.7 | 84.7% |
| 7 Nov 2025, 10:33 | 20.8 | 20.8% |
| 8 Oct 2025, 10:36 | 23 | 23% |
| 2 Sep 2025, 10:45 | 16.2 | 16.2% |
| 14 Aug 2025, 11:18 | 32.4 | 32.4% |
| 23 Jul 2025, 10:08 | 17.5 | 17.5% |
| 26 Jun 2025, 14:07 | 29.3 | 29.3% |
| 29 May 2025, 11:42 | 48 | 48% |
| 1 Apr 2025, 09:34 | 86.8 | 86.8% |
| 7 Mar 2025, 09:08 | 95.4 | 95.4% |
| 10 Feb 2025, 08:50 | 97.8 | 97.8% |
| 16 Jan 2025, 10:26 | 90.4 | 90.4% |
| 6 Dec 2024, 09:29 | 85.8 | 85.8% |
| 4 Nov 2024, 10:01 | 63.7 | 63.7% |
| 7 Oct 2024, 09:06 | 84.7 | 84.7% |
| 2 Sep 2024, 10:26 | 29.7 | 29.7% |
| 5 Aug 2024, 08:00 | 46.4 | 46.4% |
| 9 Jul 2024, 13:51 | 88.4 | 88.4% |
| 11 Jun 2024, 13:40 | 85.2 | 85.2% |
| 2 May 2024, 12:33 | 104.6 | 104.6% |
| 4 Apr 2024, 10:54 | 94.4 | 94.4% |
| 7 Mar 2024, 10:27 | 95.7 | 95.7% |
| 1 Feb 2024, 13:17 | 93.3 | 93.3% |
| 4 Jan 2024, 14:24 | 92.3 | 92.3% |
| 4 Dec 2023, 11:21 | 91.2 | 91.2% |
| 7 Nov 2023, 10:31 | 88.8 | 88.8% |
| 4 Oct 2023, 10:00 | 65.7 | 65.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.27 mg/l
Sampled 17 Sep 2026, 14 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | 5.27 | 5.27 mg/l |
| 14 Aug 2026, 13:38 | 3.06 | 3.06 mg/l |
| 9 Jul 2026, 11:44 | 2.44 | 2.44 mg/l |
| 5 Jun 2026, 11:20 | 4.15 | 4.15 mg/l |
| 5 May 2026, 12:45 | 7.71 | 7.71 mg/l |
| 15 Apr 2026, 10:20 | 8.76 | 8.76 mg/l |
| 9 Mar 2026, 14:29 | 11.4 | 11.4 mg/l |
| 2 Feb 2026, 10:59 | 10.6 | 10.6 mg/l |
| 5 Jan 2026, 11:22 | 11.8 | 11.8 mg/l |
| 4 Dec 2025, 14:08 | 10.2 | 10.2 mg/l |
| 7 Nov 2025, 10:33 | 2.22 | 2.22 mg/l |
| 8 Oct 2025, 10:36 | 2.45 | 2.45 mg/l |
| 2 Sep 2025, 10:45 | 1.63 | 1.63 mg/l |
| 14 Aug 2025, 11:18 | 3.02 | 3.02 mg/l |
| 23 Jul 2025, 10:08 | 1.71 | 1.71 mg/l |
| 26 Jun 2025, 14:07 | 2.73 | 2.73 mg/l |
| 29 May 2025, 11:42 | 4.86 | 4.86 mg/l |
| 1 Apr 2025, 09:34 | 10.2 | 10.2 mg/l |
| 7 Mar 2025, 09:08 | 11.6 | 11.6 mg/l |
| 10 Feb 2025, 08:50 | 12.5 | 12.5 mg/l |
| 16 Jan 2025, 10:26 | 11.1 | 11.1 mg/l |
| 6 Dec 2024, 09:29 | 10.4 | 10.4 mg/l |
| 4 Nov 2024, 10:01 | 6.93 | 6.93 mg/l |
| 7 Oct 2024, 09:06 | 9.04 | 9.04 mg/l |
| 2 Sep 2024, 10:26 | 2.85 | 2.85 mg/l |
| 5 Aug 2024, 08:00 | 4.67 | 4.67 mg/l |
| 9 Jul 2024, 13:51 | 8.72 | 8.72 mg/l |
| 11 Jun 2024, 13:40 | 9.1 | 9.1 mg/l |
| 2 May 2024, 12:33 | 11 | 11 mg/l |
| 4 Apr 2024, 10:54 | 10.5 | 10.5 mg/l |
| 7 Mar 2024, 10:27 | 11.5 | 11.5 mg/l |
| 1 Feb 2024, 13:17 | 11.3 | 11.3 mg/l |
| 4 Jan 2024, 14:24 | 10.9 | 10.9 mg/l |
| 4 Dec 2023, 11:21 | 11.5 | 11.5 mg/l |
| 7 Nov 2023, 10:31 | 10.2 | 10.2 mg/l |
| 4 Oct 2023, 10:00 | 6.88 | 6.88 mg/l |
Water temperature
code 0076 · °C
15 °C
Sampled 17 Sep 2026, 14 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | 15 | 15 °C |
| 14 Aug 2026, 13:38 | 17.5 | 17.5 °C |
| 9 Jul 2026, 11:44 | 20.4 | 20.4 °C |
| 5 Jun 2026, 11:20 | 14.1 | 14.1 °C |
| 5 May 2026, 12:45 | 12.5 | 12.5 °C |
| 15 Apr 2026, 10:20 | 11 | 11 °C |
| 9 Mar 2026, 14:29 | 8.8 | 8.8 °C |
| 2 Feb 2026, 10:59 | 6.9 | 6.9 °C |
| 5 Jan 2026, 11:22 | 1.5 | 1.5 °C |
| 4 Dec 2025, 14:08 | 7.4 | 7.4 °C |
| 7 Nov 2025, 10:33 | 12.2 | 12.2 °C |
| 8 Oct 2025, 10:36 | 12.3 | 12.3 °C |
| 2 Sep 2025, 10:45 | 15 | 15 °C |
| 14 Aug 2025, 11:18 | 18.6 | 18.6 °C |
| 23 Jul 2025, 10:08 | 16.4 | 16.4 °C |
| 26 Jun 2025, 14:07 | 18.7 | 18.7 °C |
| 29 May 2025, 11:42 | 14.7 | 14.7 °C |
| 1 Apr 2025, 09:34 | 8.2 | 8.2 °C |
| 7 Mar 2025, 09:08 | 6.8 | 6.8 °C |
| 10 Feb 2025, 08:50 | 4.8 | 4.8 °C |
| 16 Jan 2025, 10:26 | 6.6 | 6.6 °C |
| 6 Dec 2024, 09:29 | 7.1 | 7.1 °C |
| 4 Nov 2024, 10:01 | 11.5 | 11.5 °C |
| 7 Oct 2024, 09:06 | 12.3 | 12.3 °C |
| 2 Sep 2024, 10:26 | 17.1 | 17.1 °C |
| 5 Aug 2024, 08:00 | 14.9 | 14.9 °C |
| 9 Jul 2024, 13:51 | 15.9 | 15.9 °C |
| 11 Jun 2024, 13:40 | 12.3 | 12.3 °C |
| 2 May 2024, 12:33 | 12.9 | 12.9 °C |
| 4 Apr 2024, 10:54 | 10.4 | 10.4 °C |
| 7 Mar 2024, 10:27 | 7.5 | 7.5 °C |
| 1 Feb 2024, 13:17 | 6.9 | 6.9 °C |
| 4 Jan 2024, 14:24 | 7.9 | 7.9 °C |
| 4 Dec 2023, 11:21 | 5.6 | 5.6 °C |
| 7 Nov 2023, 10:31 | 9.2 | 9.2 °C |
| 4 Oct 2023, 10:00 | 13.2 | 13.2 °C |
pH
code 0061
7.8
Sampled 17 Sep 2026, 14 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | 7.8 | 7.8 |
| 14 Aug 2026, 13:38 | 7.9 | 7.9 |
| 9 Jul 2026, 11:44 | 7.6 | 7.6 |
| 5 Jun 2026, 11:20 | 7.5 | 7.5 |
| 5 May 2026, 12:45 | 7.69 | 7.69 |
| 15 Apr 2026, 10:20 | 7.72 | 7.72 |
| 7 Mar 2024, 10:27 | 8.19 | 8.19 |
| 1 Feb 2024, 13:17 | 8.09 | 8.09 |
| 4 Jan 2024, 14:24 | 8.11 | 8.11 |
| 4 Dec 2023, 11:21 | 8.02 | 8.02 |
| 7 Nov 2023, 10:31 | 7.92 | 7.92 |
| 4 Oct 2023, 10:00 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 17 Sep 2026, 14 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Aug 2026, 13:38 | 0.047 | 0.047 mg/l |
| 9 Jul 2026, 11:44 | 0.092 | 0.092 mg/l |
| 5 Jun 2026, 11:20 | 0.17 | 0.17 mg/l |
| 5 May 2026, 12:45 | 0.06 | 0.06 mg/l |
| 15 Apr 2026, 10:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Mar 2026, 14:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 10:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jan 2026, 11:22 | 0.063 | 0.063 mg/l |
| 4 Dec 2025, 14:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2025, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2025, 10:45 | 0.04 | 0.04 mg/l |
| 14 Aug 2025, 11:18 | 0.084 | 0.084 mg/l |
| 23 Jul 2025, 10:08 | 0.16 | 0.16 mg/l |
| 26 Jun 2025, 14:07 | 0.11 | 0.11 mg/l |
| 29 May 2025, 11:42 | 0.16 | 0.16 mg/l |
| 1 Apr 2025, 09:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2025, 09:08 | 0.036 | 0.036 mg/l |
| 10 Feb 2025, 08:50 | 0.032 | 0.032 mg/l |
| 16 Jan 2025, 10:26 | 0.05 | 0.05 mg/l |
| 4 Nov 2024, 10:01 | 0.04 | 0.04 mg/l |
| 7 Oct 2024, 09:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2024, 10:26 | 0.048 | 0.048 mg/l |
| 5 Aug 2024, 08:00 | 0.072 | 0.072 mg/l |
| 9 Jul 2024, 13:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jun 2024, 13:40 | 0.036 | 0.036 mg/l |
| 2 May 2024, 12:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2024, 10:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2024, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jan 2024, 14:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2023, 11:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2023, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Oct 2023, 10:00 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 17 Sep 2026, 14 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | <0.196 | below 0.196 mg/l (not detected above this) |
| 14 Aug 2026, 13:38 | <0.196 | below 0.196 mg/l (not detected above this) |
| 9 Jul 2026, 11:44 | 0.221 | 0.221 mg/l |
| 5 Jun 2026, 11:20 | 2.86 | 2.86 mg/l |
| 5 May 2026, 12:45 | 1.48 | 1.48 mg/l |
| 15 Apr 2026, 10:20 | 4.28 | 4.28 mg/l |
| 9 Mar 2026, 14:29 | 8.47 | 8.47 mg/l |
| 2 Feb 2026, 10:59 | 17 | 17 mg/l |
| 5 Jan 2026, 11:22 | 12.9 | 12.9 mg/l |
| 4 Dec 2025, 14:08 | 21.9 | 21.9 mg/l |
| 7 Nov 2025, 10:33 | <0.196 | below 0.196 mg/l (not detected above this) |
| 8 Oct 2025, 10:36 | <0.196 | below 0.196 mg/l (not detected above this) |
| 2 Sep 2025, 10:45 | <0.196 | below 0.196 mg/l (not detected above this) |
| 14 Aug 2025, 11:18 | <0.196 | below 0.196 mg/l (not detected above this) |
| 23 Jul 2025, 10:08 | 0.194 | 0.194 mg/l |
| 26 Jun 2025, 14:07 | 0.193 | 0.193 mg/l |
| 29 May 2025, 11:42 | 0.81 | 0.81 mg/l |
| 1 Apr 2025, 09:34 | 4.87 | 4.87 mg/l |
| 7 Mar 2025, 09:08 | 9.26 | 9.26 mg/l |
| 10 Feb 2025, 08:50 | 12 | 12 mg/l |
| 16 Jan 2025, 10:26 | 8.87 | 8.87 mg/l |
| 4 Nov 2024, 10:01 | 2.46 | 2.46 mg/l |
| 7 Oct 2024, 09:06 | 5.65 | 5.65 mg/l |
| 2 Sep 2024, 10:26 | 0.272 | 0.272 mg/l |
| 5 Aug 2024, 08:00 | 0.439 | 0.439 mg/l |
| 9 Jul 2024, 13:51 | 2.39 | 2.39 mg/l |
| 11 Jun 2024, 13:40 | 3.57 | 3.57 mg/l |
| 2 May 2024, 12:33 | 7.77 | 7.77 mg/l |
| 4 Apr 2024, 10:54 | 4.18 | 4.18 mg/l |
| 7 Mar 2024, 10:27 | 6.48 | 6.48 mg/l |
| 1 Feb 2024, 13:17 | 7.27 | 7.27 mg/l |
| 4 Jan 2024, 14:24 | 9.38 | 9.38 mg/l |
| 4 Dec 2023, 11:21 | 12 | 12 mg/l |
| 7 Nov 2023, 10:31 | 12 | 12 mg/l |
| 4 Oct 2023, 10:00 | 0.216 | 0.216 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.086 mg/l
Sampled 17 Sep 2026, 14 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | 0.086 | 0.086 mg/l |
| 14 Aug 2026, 13:38 | 0.11 | 0.11 mg/l |
| 9 Jul 2026, 11:44 | 0.095 | 0.095 mg/l |
| 5 Jun 2026, 11:20 | 0.33 | 0.33 mg/l |
| 5 May 2026, 12:45 | 0.077 | 0.077 mg/l |
| 15 Apr 2026, 10:20 | 0.099 | 0.099 mg/l |
| 9 Mar 2026, 14:29 | 0.088 | 0.088 mg/l |
| 2 Feb 2026, 10:59 | 0.059 | 0.059 mg/l |
| 5 Jan 2026, 11:22 | 0.13 | 0.13 mg/l |
| 4 Dec 2025, 14:08 | 0.099 | 0.099 mg/l |
| 7 Nov 2025, 10:33 | 0.17 | 0.17 mg/l |
| 8 Oct 2025, 10:36 | 0.073 | 0.073 mg/l |
| 2 Sep 2025, 10:45 | 0.086 | 0.086 mg/l |
| 14 Aug 2025, 11:18 | 0.15 | 0.15 mg/l |
| 23 Jul 2025, 10:08 | 0.14 | 0.14 mg/l |
| 26 Jun 2025, 14:07 | 0.11 | 0.11 mg/l |
| 29 May 2025, 11:42 | 0.26 | 0.26 mg/l |
| 1 Apr 2025, 09:34 | 0.083 | 0.083 mg/l |
| 7 Mar 2025, 09:08 | 0.045 | 0.045 mg/l |
| 10 Feb 2025, 08:50 | 0.082 | 0.082 mg/l |
| 16 Jan 2025, 10:26 | 0.087 | 0.087 mg/l |
| 4 Nov 2024, 10:01 | 0.1 | 0.1 mg/l |
| 7 Oct 2024, 09:06 | 0.086 | 0.086 mg/l |
| 2 Sep 2024, 10:26 | 0.039 | 0.039 mg/l |
| 5 Aug 2024, 08:00 | 0.078 | 0.078 mg/l |
| 9 Jul 2024, 13:51 | 0.14 | 0.14 mg/l |
| 11 Jun 2024, 13:40 | 0.14 | 0.14 mg/l |
| 2 May 2024, 12:33 | 0.06 | 0.06 mg/l |
| 4 Apr 2024, 10:54 | 0.064 | 0.064 mg/l |
| 7 Mar 2024, 10:27 | 0.054 | 0.054 mg/l |
| 1 Feb 2024, 13:17 | 0.086 | 0.086 mg/l |
| 4 Jan 2024, 14:24 | 0.06 | 0.06 mg/l |
| 4 Dec 2023, 11:21 | 0.07 | 0.07 mg/l |
| 7 Nov 2023, 10:31 | 0.055 | 0.055 mg/l |
| 4 Oct 2023, 10:00 | 0.29 | 0.29 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
967 µS/cm
Sampled 17 Sep 2026, 14 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 14:08 | 967 | 967 µS/cm |
| 14 Aug 2026, 13:38 | 1042 | 1042 µS/cm |
| 9 Jul 2026, 11:44 | 932 | 932 µS/cm |
| 5 Jun 2026, 11:20 | 993 | 993 µS/cm |
| 5 May 2026, 12:45 | 884 | 884 µS/cm |
| 15 Apr 2026, 10:20 | 853 | 853 µS/cm |
| 9 Mar 2026, 14:29 | 728 | 728 µS/cm |
| 2 Feb 2026, 10:59 | 640 | 640 µS/cm |
| 5 Jan 2026, 11:22 | 899 | 899 µS/cm |
| 4 Dec 2025, 14:08 | 799 | 799 µS/cm |
| 7 Nov 2025, 10:33 | 1027 | 1027 µS/cm |
| 8 Oct 2025, 10:36 | 932 | 932 µS/cm |
| 2 Sep 2025, 10:45 | 939 | 939 µS/cm |
| 14 Aug 2025, 11:18 | 992 | 992 µS/cm |
| 23 Jul 2025, 10:08 | 1016 | 1016 µS/cm |
| 26 Jun 2025, 14:07 | 1053 | 1053 µS/cm |
| 29 May 2025, 11:42 | 935 | 935 µS/cm |
| 1 Apr 2025, 09:34 | 792 | 792 µS/cm |
| 7 Mar 2025, 09:08 | 776 | 776 µS/cm |
| 10 Feb 2025, 08:50 | 671 | 671 µS/cm |
| 16 Jan 2025, 10:26 | 768 | 768 µS/cm |
| 6 Dec 2024, 09:29 | 628 | 628 µS/cm |
| 4 Nov 2024, 10:01 | 803 | 803 µS/cm |
| 7 Oct 2024, 09:06 | 716 | 716 µS/cm |
| 2 Sep 2024, 10:26 | 1047 | 1047 µS/cm |
| 5 Aug 2024, 08:00 | 1001 | 1001 µS/cm |
| 9 Jul 2024, 13:51 | 677 | 677 µS/cm |
| 11 Jun 2024, 13:40 | 802 | 802 µS/cm |
| 2 May 2024, 12:33 | 731 | 731 µS/cm |
| 4 Apr 2024, 10:54 | 738 | 738 µS/cm |
| 7 Mar 2024, 10:27 | 698 | 698 µS/cm |
| 1 Feb 2024, 13:17 | 770 | 770 µS/cm |
| 4 Jan 2024, 14:24 | 640 | 640 µS/cm |
| 4 Dec 2023, 11:21 | 685 | 685 µS/cm |
| 7 Nov 2023, 10:31 | 694 | 694 µS/cm |
| 4 Oct 2023, 10:00 | 714 | 714 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
1500 per 100 ml
Sampled 4 Dec 2023, 2.8 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Dec 2023, 11:21 | 1500 | 1500 per 100 ml |
| 7 Nov 2023, 10:31 | 450 | 450 per 100 ml |
| 4 Oct 2023, 10:00 | 2600 | 2600 per 100 ml |
Everything measured here
21 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 21 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 36 | Oct 2023 – Sep 2026 | 52.4% 17 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 36 | Oct 2023 – Sep 2026 | 5.27 mg/l 17 Sep 2026 |
| Temperature of Water 0076 | River water | 36 | Oct 2023 – Sep 2026 | 15 °C 17 Sep 2026 |
| pH 0061 | River water | 12 | Oct 2023 – Sep 2026 | 7.8 17 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 34 | Oct 2023 – Sep 2026 | below 0.03 mg/l 17 Sep 2026 |
| Nitrate as N 0117 | River water | 35 | Oct 2023 – Sep 2026 | below 0.196 mg/l 17 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 35 | Oct 2023 – Sep 2026 | 0.086 mg/l 17 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 36 | Oct 2023 – Sep 2026 | 967 µS/cm 17 Sep 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 3 | Oct 2023 – Dec 2023 | 1500 per 100 ml 4 Dec 2023 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Oct 2023 – Sep 2026 | 340 mg/l 17 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 11 | Oct 2023 – Sep 2026 | below 0.0005 mg/l 17 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Apr 2024 – Mar 2026 | 1.4 mg/l 9 Mar 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 24 | Apr 2024 – Mar 2026 | 14 mg/l 9 Mar 2026 |
| Chloride 0172 | River water | 23 | Apr 2024 – Mar 2026 | 31 mg/l 9 Mar 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 22 | Apr 2024 – Mar 2026 | 1.5 µg/l 9 Mar 2026 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 3 | Oct 2023 – Dec 2023 | 2800 colony forming units / 100ml 4 Dec 2023 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 3 | Oct 2023 – Dec 2023 | 2800 colony forming units / 100ml 4 Dec 2023 |
| Nitrite as N 0118 | River water | 35 | Oct 2023 – Sep 2026 | below 0.004 mg/l 17 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 35 | Oct 2023 – Sep 2026 | below 0.2 mg/l 17 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 23 | Apr 2024 – Mar 2026 | 6.1 mg/l 9 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 24 | Apr 2024 – Mar 2026 | 4.1 mg/l 9 Mar 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.