Stort at Sawbridgeworth
EA name: STORT AT SAWBRIDGEWORTH
Environment Agency sampling point TH-PLER0151 · 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
- 5 Aug 2026, 11:1857 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 2 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)
- Where
- National Grid 548790, 215025As published, to the nearest 1 m. Open in a map
- River, by its own name
- Stort
- River, by the map
- River StortPlaced on the river its name gives, 11 m from the line.
- Next gauge downstream
- Sawbridgeworth On the River Stort · 0.3 km along the river
- Nearest gauge upstream
- Bishops Stortford, Grange Paddocks On the River Stort · 9.0 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.7%
Sampled 5 Aug 2026, 57 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 11:18 | 101.7 | 101.7% |
| 7 Jul 2026, 10:48 | 129.3 | 129.3% |
| 4 Jun 2026, 09:32 | 94.6 | 94.6% |
| 15 May 2026, 13:47 | 105.2 | 105.2% |
| 27 Apr 2026, 11:54 | 131.6 | 131.6% |
| 4 Mar 2026, 09:41 | 94.1 | 94.1% |
| 10 Feb 2026, 11:37 | 91.4 | 91.4% |
| 12 Jan 2026, 13:35 | 92.7 | 92.7% |
| 3 Dec 2025, 12:13 | 76.3 | 76.3% |
| 6 Nov 2025, 11:44 | 62.9 | 62.9% |
| 22 Oct 2025, 11:14 | 66.6 | 66.6% |
| 26 Sep 2025, 13:52 | 80 | 80% |
| 26 Aug 2025, 08:40 | 89.5 | 89.5% |
| 3 Jul 2025, 13:35 | 102.9 | 102.9% |
| 16 Jun 2025, 12:28 | 115.5 | 115.5% |
| 22 May 2025, 11:31 | 102.2 | 102.2% |
| 4 Apr 2025, 09:45 | 104.5 | 104.5% |
| 10 Mar 2025, 12:40 | 97.5 | 97.5% |
| 10 Feb 2025, 11:09 | 92.5 | 92.5% |
| 24 Jan 2025, 10:13 | 93.8 | 93.8% |
| 9 Dec 2024, 11:47 | 95.2 | 95.2% |
| 8 Nov 2024, 10:22 | 67.3 | 67.3% |
| 3 Oct 2024, 13:50 | 87.8 | 87.8% |
| 4 Sep 2024, 13:45 | 96.8 | 96.8% |
| 2 Aug 2024, 10:24 | 111.1 | 111.1% |
| 11 Jul 2024, 11:21 | 95.3 | 95.3% |
| 5 Jun 2024, 11:49 | 103.7 | 103.7% |
| 5 Mar 2024, 10:19 | 97.2 | 97.2% |
| 7 Feb 2024, 09:10 | 79 | 79% |
| 9 Jan 2024, 14:08 | 93.5 | 93.5% |
| 7 Dec 2023, 13:41 | 89.6 | 89.6% |
| 16 Nov 2023, 09:15 | 86.5 | 86.5% |
| 2 Oct 2023, 10:57 | 77.2 | 77.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.92 mg/l
Sampled 5 Aug 2026, 57 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 11:18 | 8.92 | 8.92 mg/l |
| 7 Jul 2026, 10:48 | 11.2 | 11.2 mg/l |
| 4 Jun 2026, 09:32 | 9.14 | 9.14 mg/l |
| 15 May 2026, 13:47 | 11 | 11 mg/l |
| 27 Apr 2026, 11:54 | 13.2 | 13.2 mg/l |
| 4 Mar 2026, 09:41 | 10.8 | 10.8 mg/l |
| 10 Feb 2026, 11:37 | 10.3 | 10.3 mg/l |
| 12 Jan 2026, 13:35 | 11.1 | 11.1 mg/l |
| 3 Dec 2025, 12:13 | 9.2 | 9.2 mg/l |
| 6 Nov 2025, 11:44 | 6.67 | 6.67 mg/l |
| 22 Oct 2025, 11:14 | 7.11 | 7.11 mg/l |
| 26 Sep 2025, 13:52 | 8.35 | 8.35 mg/l |
| 26 Aug 2025, 08:40 | 8.47 | 8.47 mg/l |
| 3 Jul 2025, 13:35 | 9.13 | 9.13 mg/l |
| 16 Jun 2025, 12:28 | 10.3 | 10.3 mg/l |
| 22 May 2025, 11:31 | 10.3 | 10.3 mg/l |
| 4 Apr 2025, 09:45 | 11.2 | 11.2 mg/l |
| 10 Mar 2025, 12:40 | 11.2 | 11.2 mg/l |
| 10 Feb 2025, 11:09 | 11.6 | 11.6 mg/l |
| 24 Jan 2025, 10:13 | 11.5 | 11.5 mg/l |
| 9 Dec 2024, 11:47 | 11.4 | 11.4 mg/l |
| 8 Nov 2024, 10:22 | 7.42 | 7.42 mg/l |
| 3 Oct 2024, 13:50 | 9.15 | 9.15 mg/l |
| 4 Sep 2024, 13:45 | 9.08 | 9.08 mg/l |
| 2 Aug 2024, 10:24 | 9.94 | 9.94 mg/l |
| 11 Jul 2024, 11:21 | 9.07 | 9.07 mg/l |
| 5 Jun 2024, 11:49 | 10.1 | 10.1 mg/l |
| 5 Mar 2024, 10:19 | 11.6 | 11.6 mg/l |
| 7 Feb 2024, 09:10 | 9.12 | 9.12 mg/l |
| 9 Jan 2024, 14:08 | 12 | 12 mg/l |
| 7 Dec 2023, 13:41 | 11.1 | 11.1 mg/l |
| 16 Nov 2023, 09:15 | 10.1 | 10.1 mg/l |
| 2 Oct 2023, 10:57 | 7.44 | 7.44 mg/l |
Water temperature
code 0076 · °C
21.7 °C
Sampled 5 Aug 2026, 57 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 11:18 | 21.7 | 21.7 °C |
| 7 Jul 2026, 10:48 | 22.6 | 22.6 °C |
| 4 Jun 2026, 09:32 | 16.9 | 16.9 °C |
| 15 May 2026, 13:47 | 13.1 | 13.1 °C |
| 27 Apr 2026, 11:54 | 15.1 | 15.1 °C |
| 4 Mar 2026, 09:41 | 9.2 | 9.2 °C |
| 10 Feb 2026, 11:37 | 9.8 | 9.8 °C |
| 12 Jan 2026, 13:35 | 7.4 | 7.4 °C |
| 3 Dec 2025, 12:13 | 7.2 | 7.2 °C |
| 6 Nov 2025, 11:44 | 12.6 | 12.6 °C |
| 22 Oct 2025, 11:14 | 12.3 | 12.3 °C |
| 26 Sep 2025, 13:52 | 13.3 | 13.3 °C |
| 26 Aug 2025, 08:40 | 17.9 | 17.9 °C |
| 3 Jul 2025, 13:35 | 21.1 | 21.1 °C |
| 16 Jun 2025, 12:28 | 20.7 | 20.7 °C |
| 22 May 2025, 11:31 | 15.1 | 15.1 °C |
| 4 Apr 2025, 09:45 | 12.2 | 12.2 °C |
| 10 Mar 2025, 12:40 | 9.1 | 9.1 °C |
| 10 Feb 2025, 11:09 | 5.5 | 5.5 °C |
| 24 Jan 2025, 10:13 | 6.5 | 6.5 °C |
| 9 Dec 2024, 11:47 | 7.5 | 7.5 °C |
| 8 Nov 2024, 10:22 | 10.9 | 10.9 °C |
| 3 Oct 2024, 13:50 | 13.4 | 13.4 °C |
| 4 Sep 2024, 13:45 | 18.3 | 18.3 °C |
| 2 Aug 2024, 10:24 | 20.7 | 20.7 °C |
| 11 Jul 2024, 11:21 | 17.6 | 17.6 °C |
| 5 Jun 2024, 11:49 | 16.5 | 16.5 °C |
| 5 Mar 2024, 10:19 | 7.5 | 7.5 °C |
| 7 Feb 2024, 09:10 | 9 | 9 °C |
| 9 Jan 2024, 14:08 | 4.8 | 4.8 °C |
| 7 Dec 2023, 13:41 | 6 | 6 °C |
| 16 Nov 2023, 09:15 | 8.4 | 8.4 °C |
| 2 Oct 2023, 10:57 | 17 | 17 °C |
pH
code 0061
8.27
Sampled 5 Aug 2026, 57 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 11:18 | 8.27 | 8.27 |
| 7 Jul 2026, 10:48 | 8.49 | 8.49 |
| 4 Jun 2026, 09:32 | 8.1 | 8.1 |
| 15 May 2026, 13:47 | 8.32 | 8.32 |
| 27 Apr 2026, 11:54 | 8.3 | 8.3 |
| 4 Mar 2026, 09:41 | 7.9 | 7.9 |
| 10 Feb 2026, 11:37 | 8.08 | 8.08 |
| 12 Jan 2026, 13:35 | 8.16 | 8.16 |
| 3 Dec 2025, 12:13 | 7.71 | 7.71 |
| 6 Nov 2025, 11:44 | 7.66 | 7.66 |
| 22 Oct 2025, 11:14 | 7.69 | 7.69 |
| 26 Sep 2025, 13:52 | 7.86 | 7.86 |
| 26 Aug 2025, 08:40 | 7.96 | 7.96 |
| 3 Jul 2025, 13:35 | 8.03 | 8.03 |
| 16 Jun 2025, 12:28 | 8.22 | 8.22 |
| 22 May 2025, 11:31 | 8.08 | 8.08 |
| 4 Apr 2025, 09:45 | 8.13 | 8.13 |
| 10 Mar 2025, 12:40 | 7.99 | 7.99 |
| 10 Feb 2025, 11:09 | 7.95 | 7.95 |
| 24 Jan 2025, 10:13 | 7.99 | 7.99 |
| 9 Dec 2024, 11:47 | 8.02 | 8.02 |
| 8 Nov 2024, 10:22 | 7.72 | 7.72 |
| 3 Oct 2024, 13:50 | 7.84 | 7.84 |
| 4 Sep 2024, 13:45 | 7.97 | 7.97 |
| 2 Aug 2024, 10:24 | 8.34 | 8.34 |
| 11 Jul 2024, 11:21 | 7.92 | 7.92 |
| 5 Jun 2024, 11:49 | 7.99 | 7.99 |
| 5 Mar 2024, 10:19 | 8.08 | 8.08 |
| 7 Feb 2024, 09:10 | 8.05 | 8.05 |
| 9 Jan 2024, 14:08 | 7.98 | 7.98 |
| 7 Dec 2023, 13:41 | 7.9 | 7.9 |
| 16 Nov 2023, 09:15 | 7.86 | 7.86 |
| 2 Oct 2023, 10:57 | 7.74 | 7.74 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 7 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Jul 2026, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2026, 09:32 | 0.074 | 0.074 mg/l |
| 15 May 2026, 13:47 | 0.066 | 0.066 mg/l |
| 27 Apr 2026, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2026, 09:41 | 0.038 | 0.038 mg/l |
| 10 Feb 2026, 11:37 | 0.16 | 0.16 mg/l |
| 12 Jan 2026, 13:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2025, 12:13 | 0.037 | 0.037 mg/l |
| 6 Nov 2025, 11:44 | 0.039 | 0.039 mg/l |
| 22 Oct 2025, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Sep 2025, 13:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Aug 2025, 08:40 | 0.038 | 0.038 mg/l |
| 3 Jul 2025, 13:35 | 0.044 | 0.044 mg/l |
| 16 Jun 2025, 12:28 | 0.042 | 0.042 mg/l |
| 22 May 2025, 11:31 | 0.041 | 0.041 mg/l |
| 4 Apr 2025, 09:45 | 0.038 | 0.038 mg/l |
| 10 Mar 2025, 12:40 | 0.033 | 0.033 mg/l |
| 10 Feb 2025, 11:09 | 0.07 | 0.07 mg/l |
| 24 Jan 2025, 10:13 | 0.082 | 0.082 mg/l |
| 9 Dec 2024, 11:47 | 0.045 | 0.045 mg/l |
| 8 Nov 2024, 10:22 | 0.07 | 0.07 mg/l |
| 3 Oct 2024, 13:50 | 0.058 | 0.058 mg/l |
| 4 Sep 2024, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Aug 2024, 10:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jul 2024, 11:21 | 0.13 | 0.13 mg/l |
| 5 Jun 2024, 11:49 | 0.036 | 0.036 mg/l |
| 5 Mar 2024, 10:19 | 0.038 | 0.038 mg/l |
| 7 Feb 2024, 09:10 | 0.046 | 0.046 mg/l |
| 9 Jan 2024, 14:08 | 0.082 | 0.082 mg/l |
| 7 Dec 2023, 13:41 | 0.033 | 0.033 mg/l |
| 16 Nov 2023, 09:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Oct 2023, 10:57 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
12.9 mg/l
Sampled 7 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Jul 2026, 10:48 | 12.9 | 12.9 mg/l |
| 4 Jun 2026, 09:32 | 10.9 | 10.9 mg/l |
| 15 May 2026, 13:47 | 11.9 | 11.9 mg/l |
| 27 Apr 2026, 11:54 | 10.9 | 10.9 mg/l |
| 4 Mar 2026, 09:41 | 9.62 | 9.62 mg/l |
| 10 Feb 2026, 11:37 | 9.84 | 9.84 mg/l |
| 12 Jan 2026, 13:35 | 34 | 34 mg/l |
| 3 Dec 2025, 12:13 | 12 | 12 mg/l |
| 6 Nov 2025, 11:44 | 11 | 11 mg/l |
| 22 Oct 2025, 11:14 | 15 | 15 mg/l |
| 26 Sep 2025, 13:52 | 12 | 12 mg/l |
| 26 Aug 2025, 08:40 | 13 | 13 mg/l |
| 3 Jul 2025, 13:35 | 12.9 | 12.9 mg/l |
| 16 Jun 2025, 12:28 | 11.9 | 11.9 mg/l |
| 22 May 2025, 11:31 | 12 | 12 mg/l |
| 4 Apr 2025, 09:45 | 12.9 | 12.9 mg/l |
| 10 Mar 2025, 12:40 | 13 | 13 mg/l |
| 10 Feb 2025, 11:09 | 11 | 11 mg/l |
| 24 Jan 2025, 10:13 | 10.9 | 10.9 mg/l |
| 9 Dec 2024, 11:47 | 13 | 13 mg/l |
| 8 Nov 2024, 10:22 | 11 | 11 mg/l |
| 3 Oct 2024, 13:50 | 16 | 16 mg/l |
| 4 Sep 2024, 13:45 | 11 | 11 mg/l |
| 2 Aug 2024, 10:24 | 11 | 11 mg/l |
| 11 Jul 2024, 11:21 | 6.22 | 6.22 mg/l |
| 5 Jun 2024, 11:49 | 9.44 | 9.44 mg/l |
| 5 Mar 2024, 10:19 | 9.18 | 9.18 mg/l |
| 7 Feb 2024, 09:10 | 12 | 12 mg/l |
| 9 Jan 2024, 14:08 | 8.87 | 8.87 mg/l |
| 7 Dec 2023, 13:41 | 12 | 12 mg/l |
| 16 Nov 2023, 09:15 | 11 | 11 mg/l |
| 2 Oct 2023, 10:57 | 11 | 11 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.64 mg/l
Sampled 7 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Jul 2026, 10:48 | 0.64 | 0.64 mg/l |
| 4 Jun 2026, 09:32 | 0.55 | 0.55 mg/l |
| 15 May 2026, 13:47 | 0.53 | 0.53 mg/l |
| 27 Apr 2026, 11:54 | 0.28 | 0.28 mg/l |
| 4 Mar 2026, 09:41 | 0.16 | 0.16 mg/l |
| 10 Feb 2026, 11:37 | 0.12 | 0.12 mg/l |
| 12 Jan 2026, 13:35 | 0.053 | 0.053 mg/l |
| 3 Dec 2025, 12:13 | 0.22 | 0.22 mg/l |
| 6 Nov 2025, 11:44 | 0.26 | 0.26 mg/l |
| 22 Oct 2025, 11:14 | 0.31 | 0.31 mg/l |
| 26 Sep 2025, 13:52 | 0.29 | 0.29 mg/l |
| 26 Aug 2025, 08:40 | 0.35 | 0.35 mg/l |
| 3 Jul 2025, 13:35 | 0.47 | 0.47 mg/l |
| 16 Jun 2025, 12:28 | 0.39 | 0.39 mg/l |
| 22 May 2025, 11:31 | 0.57 | 0.57 mg/l |
| 4 Apr 2025, 09:45 | 0.073 | 0.073 mg/l |
| 10 Mar 2025, 12:40 | 0.09 | 0.09 mg/l |
| 10 Feb 2025, 11:09 | 0.11 | 0.11 mg/l |
| 24 Jan 2025, 10:13 | 0.16 | 0.16 mg/l |
| 9 Dec 2024, 11:47 | 0.15 | 0.15 mg/l |
| 8 Nov 2024, 10:22 | 0.29 | 0.29 mg/l |
| 3 Oct 2024, 13:50 | 0.18 | 0.18 mg/l |
| 4 Sep 2024, 13:45 | 0.35 | 0.35 mg/l |
| 2 Aug 2024, 10:24 | 0.31 | 0.31 mg/l |
| 11 Jul 2024, 11:21 | 0.28 | 0.28 mg/l |
| 5 Jun 2024, 11:49 | 0.27 | 0.27 mg/l |
| 5 Mar 2024, 10:19 | 0.13 | 0.13 mg/l |
| 7 Feb 2024, 09:10 | 0.25 | 0.25 mg/l |
| 9 Jan 2024, 14:08 | 0.14 | 0.14 mg/l |
| 7 Dec 2023, 13:41 | 0.18 | 0.18 mg/l |
| 16 Nov 2023, 09:15 | 0.15 | 0.15 mg/l |
| 2 Oct 2023, 10:57 | 0.29 | 0.29 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1020 µS/cm
Sampled 5 Aug 2026, 57 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 11:18 | 1020 | 1020 µS/cm |
| 7 Jul 2026, 10:48 | 974 | 974 µS/cm |
| 4 Jun 2026, 09:32 | 943 | 943 µS/cm |
| 15 May 2026, 13:47 | 922 | 922 µS/cm |
| 27 Apr 2026, 11:54 | 897 | 897 µS/cm |
| 4 Mar 2026, 09:41 | 805 | 805 µS/cm |
| 10 Feb 2026, 11:37 | 814 | 814 µS/cm |
| 12 Jan 2026, 13:35 | 811 | 811 µS/cm |
| 3 Dec 2025, 12:13 | 952 | 952 µS/cm |
| 6 Nov 2025, 11:44 | 907 | 907 µS/cm |
| 22 Oct 2025, 11:14 | 985 | 985 µS/cm |
| 26 Sep 2025, 13:52 | 965 | 965 µS/cm |
| 26 Aug 2025, 08:40 | 986 | 986 µS/cm |
| 3 Jul 2025, 13:35 | 901 | 901 µS/cm |
| 16 Jun 2025, 12:28 | 926 | 926 µS/cm |
| 22 May 2025, 11:31 | 923 | 923 µS/cm |
| 4 Apr 2025, 09:45 | 894 | 894 µS/cm |
| 10 Mar 2025, 12:40 | 895 | 895 µS/cm |
| 10 Feb 2025, 11:09 | 1010 | 1010 µS/cm |
| 24 Jan 2025, 10:13 | 902 | 902 µS/cm |
| 9 Dec 2024, 11:47 | 591 | 591 µS/cm |
| 8 Nov 2024, 10:22 | 915 | 915 µS/cm |
| 3 Oct 2024, 13:50 | 649 | 649 µS/cm |
| 4 Sep 2024, 13:45 | 914 | 914 µS/cm |
| 2 Aug 2024, 10:24 | 912 | 912 µS/cm |
| 11 Jul 2024, 11:21 | 617 | 617 µS/cm |
| 5 Jun 2024, 11:49 | 869 | 869 µS/cm |
| 5 Mar 2024, 10:19 | 795 | 795 µS/cm |
| 7 Feb 2024, 09:10 | 883 | 883 µS/cm |
| 9 Jan 2024, 14:08 | 773 | 773 µS/cm |
| 7 Dec 2023, 13:41 | 814 | 814 µS/cm |
| 16 Nov 2023, 09:15 | 720 | 720 µS/cm |
| 2 Oct 2023, 10:57 | 846 | 846 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Aug 2026 | 101.7% 5 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Aug 2026 | 8.92 mg/l 5 Aug 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Aug 2026 | 21.7 °C 5 Aug 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Aug 2026 | 8.27 5 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Jul 2026 | below 0.03 mg/l 7 Jul 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Jul 2026 | 12.9 mg/l 7 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Jul 2026 | 0.64 mg/l 7 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Aug 2026 | 1020 µS/cm 5 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Aug 2026 | 240 mg/l 5 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Jul 2026 | below 0.00136 mg/l 7 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Jun 2024 – Aug 2026 | below 3 mg/l 5 Aug 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Jul 2026 | 0.098 mg/l 7 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Aug 2026 | 17 mg/l 5 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.