Hart at Hartford Bridge
EA name: HART AT HARTFORD BRIDGE
Environment Agency sampling point TH-PLDR0019 · 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, 09:5430 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 477480, 157840As published, to the nearest 10 m. Open in a map
- River, by its own name
- Hart
- River, by the map
- River HartPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- Bramshill On the River Hart · 3.4 km along the river
- Nearest gauge upstream
- Kings Road Bridge On the Fleet Brook · 7.7 km along the riverCrookham Village On the River Hart · 8.4 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
59.2%
Sampled 1 Sep 2026, 30 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 59.2 | 59.2% |
| 14 Jul 2026, 14:44 | 58.4 | 58.4% |
| 12 Jun 2026, 11:38 | 64.1 | 64.1% |
| 21 May 2026, 10:24 | 68.8 | 68.8% |
| 9 Apr 2026, 09:21 | 76.8 | 76.8% |
| 17 Mar 2026, 09:36 | 83.3 | 83.3% |
| 4 Feb 2026, 10:21 | 85 | 85% |
| 8 Jan 2026, 10:48 | 82.3 | 82.3% |
| 10 Dec 2025, 12:17 | 83.7 | 83.7% |
| 14 Nov 2025, 10:55 | 63.4 | 63.4% |
| 20 Oct 2025, 08:49 | 57.7 | 57.7% |
| 25 Sep 2025, 11:04 | 74.4 | 74.4% |
| 1 Aug 2025, 09:48 | 58.8 | 58.8% |
| 17 Jul 2025, 09:13 | 66.4 | 66.4% |
| 25 Jun 2025, 08:46 | 68.7 | 68.7% |
| 13 May 2025, 09:20 | 60.3 | 60.3% |
| 24 Apr 2025, 13:09 | 89.3 | 89.3% |
| 7 Mar 2025, 10:39 | 82 | 82% |
| 12 Feb 2025, 10:30 | 87.7 | 87.7% |
| 23 Jan 2025, 13:05 | 91.7 | 91.7% |
| 6 Dec 2024, 10:44 | 83.5 | 83.5% |
| 12 Nov 2024, 10:56 | 77 | 77% |
| 9 Oct 2024, 10:14 | 67.1 | 67.1% |
| 11 Sep 2024, 10:18 | 71.4 | 71.4% |
| 1 Aug 2024, 10:44 | 69.6 | 69.6% |
| 9 Jul 2024, 09:09 | 72.4 | 72.4% |
| 21 Jun 2024, 13:00 | 92.5 | 92.5% |
| 5 Mar 2024, 10:42 | 86 | 86% |
| 1 Feb 2024, 11:24 | 86.9 | 86.9% |
| 3 Jan 2024, 09:05 | 80.7 | 80.7% |
| 5 Dec 2023, 09:51 | 79.7 | 79.7% |
| 13 Nov 2023, 11:09 | 61.3 | 61.3% |
| 2 Oct 2023, 13:07 | 63.9 | 63.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.79 mg/l
Sampled 1 Sep 2026, 30 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 5.79 | 5.79 mg/l |
| 14 Jul 2026, 14:44 | 5.31 | 5.31 mg/l |
| 12 Jun 2026, 11:38 | 6.46 | 6.46 mg/l |
| 21 May 2026, 10:24 | 7.04 | 7.04 mg/l |
| 9 Apr 2026, 09:21 | 8.16 | 8.16 mg/l |
| 17 Mar 2026, 09:36 | 9.45 | 9.45 mg/l |
| 4 Feb 2026, 10:21 | 10.4 | 10.4 mg/l |
| 8 Jan 2026, 10:48 | 10.5 | 10.5 mg/l |
| 10 Dec 2025, 12:17 | 9.32 | 9.32 mg/l |
| 14 Nov 2025, 10:55 | 6.58 | 6.58 mg/l |
| 20 Oct 2025, 08:49 | 6.04 | 6.04 mg/l |
| 25 Sep 2025, 11:04 | 7.98 | 7.98 mg/l |
| 1 Aug 2025, 09:48 | 5.66 | 5.66 mg/l |
| 17 Jul 2025, 09:13 | 6.22 | 6.22 mg/l |
| 25 Jun 2025, 08:46 | 6.54 | 6.54 mg/l |
| 13 May 2025, 09:20 | 6.2 | 6.2 mg/l |
| 24 Apr 2025, 13:09 | 9.62 | 9.62 mg/l |
| 7 Mar 2025, 10:39 | 9.39 | 9.39 mg/l |
| 12 Feb 2025, 10:30 | 10.8 | 10.8 mg/l |
| 23 Jan 2025, 13:05 | 11.3 | 11.3 mg/l |
| 6 Dec 2024, 10:44 | 9.8 | 9.8 mg/l |
| 12 Nov 2024, 10:56 | 8.76 | 8.76 mg/l |
| 9 Oct 2024, 10:14 | 6.97 | 6.97 mg/l |
| 11 Sep 2024, 10:18 | 7.49 | 7.49 mg/l |
| 1 Aug 2024, 10:44 | 6.49 | 6.49 mg/l |
| 9 Jul 2024, 09:09 | 7.17 | 7.17 mg/l |
| 21 Jun 2024, 13:00 | 9.22 | 9.22 mg/l |
| 5 Mar 2024, 10:42 | 10.1 | 10.1 mg/l |
| 1 Feb 2024, 11:24 | 10.2 | 10.2 mg/l |
| 3 Jan 2024, 09:05 | 9.4 | 9.4 mg/l |
| 5 Dec 2023, 09:51 | 9.61 | 9.61 mg/l |
| 13 Nov 2023, 11:09 | 6.79 | 6.79 mg/l |
| 2 Oct 2023, 13:07 | 6.22 | 6.22 mg/l |
Water temperature
code 0076 · °C
16.3 °C
Sampled 1 Sep 2026, 30 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 16.3 | 16.3 °C |
| 14 Jul 2026, 14:44 | 19.9 | 19.9 °C |
| 12 Jun 2026, 11:38 | 14.9 | 14.9 °C |
| 21 May 2026, 10:24 | 14.2 | 14.2 °C |
| 9 Apr 2026, 09:21 | 12.5 | 12.5 °C |
| 17 Mar 2026, 09:36 | 9.7 | 9.7 °C |
| 4 Feb 2026, 10:21 | 6.8 | 6.8 °C |
| 8 Jan 2026, 10:48 | 5 | 5 °C |
| 10 Dec 2025, 12:17 | 10.5 | 10.5 °C |
| 14 Nov 2025, 10:55 | 13.6 | 13.6 °C |
| 20 Oct 2025, 08:49 | 13.2 | 13.2 °C |
| 25 Sep 2025, 11:04 | 12.1 | 12.1 °C |
| 1 Aug 2025, 09:48 | 17.1 | 17.1 °C |
| 17 Jul 2025, 09:13 | 18.4 | 18.4 °C |
| 25 Jun 2025, 08:46 | 17.6 | 17.6 °C |
| 13 May 2025, 09:20 | 14 | 14 °C |
| 24 Apr 2025, 13:09 | 11.9 | 11.9 °C |
| 7 Mar 2025, 10:39 | 9.3 | 9.3 °C |
| 12 Feb 2025, 10:30 | 6.2 | 6.2 °C |
| 23 Jan 2025, 13:05 | 6.4 | 6.4 °C |
| 6 Dec 2024, 10:44 | 8.3 | 8.3 °C |
| 12 Nov 2024, 10:56 | 9.6 | 9.6 °C |
| 9 Oct 2024, 10:14 | 13.5 | 13.5 °C |
| 11 Sep 2024, 10:18 | 13.1 | 13.1 °C |
| 1 Aug 2024, 10:44 | 18.6 | 18.6 °C |
| 9 Jul 2024, 09:09 | 15.7 | 15.7 °C |
| 21 Jun 2024, 13:00 | 15.4 | 15.4 °C |
| 5 Mar 2024, 10:42 | 8.1 | 8.1 °C |
| 1 Feb 2024, 11:24 | 8.4 | 8.4 °C |
| 3 Jan 2024, 09:05 | 8.6 | 8.6 °C |
| 5 Dec 2023, 09:51 | 7.2 | 7.2 °C |
| 13 Nov 2023, 11:09 | 10.7 | 10.7 °C |
| 2 Oct 2023, 13:07 | 16.5 | 16.5 °C |
pH
code 0061
7.14
Sampled 1 Sep 2026, 30 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 7.14 | 7.14 |
| 14 Jul 2026, 14:44 | 7.45 | 7.45 |
| 12 Jun 2026, 11:38 | 7.19 | 7.19 |
| 21 May 2026, 10:24 | 7.27 | 7.27 |
| 9 Apr 2026, 09:21 | 7.43 | 7.43 |
| 17 Mar 2026, 09:36 | 7.59 | 7.59 |
| 4 Feb 2026, 10:21 | 7.3 | 7.3 |
| 8 Jan 2026, 10:48 | 7.35 | 7.35 |
| 10 Dec 2025, 12:17 | 7.36 | 7.36 |
| 14 Nov 2025, 10:55 | 7.1 | 7.1 |
| 20 Oct 2025, 08:49 | 7.42 | 7.42 |
| 25 Sep 2025, 11:04 | 7.2 | 7.2 |
| 1 Aug 2025, 09:48 | 7.27 | 7.27 |
| 17 Jul 2025, 09:13 | 7.08 | 7.08 |
| 25 Jun 2025, 08:46 | 7.23 | 7.23 |
| 13 May 2025, 09:20 | 7.54 | 7.54 |
| 24 Apr 2025, 13:09 | 7.58 | 7.58 |
| 7 Mar 2025, 10:39 | 7.68 | 7.68 |
| 12 Feb 2025, 10:30 | 7.54 | 7.54 |
| 23 Jan 2025, 13:05 | 7.63 | 7.63 |
| 6 Dec 2024, 10:44 | 7.6 | 7.6 |
| 12 Nov 2024, 10:56 | 7.48 | 7.48 |
| 9 Oct 2024, 10:14 | 7.14 | 7.14 |
| 11 Sep 2024, 10:18 | 7.41 | 7.41 |
| 1 Aug 2024, 10:44 | 7.42 | 7.42 |
| 9 Jul 2024, 09:09 | 7.47 | 7.47 |
| 21 Jun 2024, 13:00 | 7.64 | 7.64 |
| 5 Mar 2024, 10:42 | 7.6 | 7.6 |
| 1 Feb 2024, 11:24 | 7.73 | 7.73 |
| 3 Jan 2024, 09:05 | 7.48 | 7.48 |
| 5 Dec 2023, 09:51 | 7.34 | 7.34 |
| 13 Nov 2023, 11:09 | 7.14 | 7.14 |
| 2 Oct 2023, 13:07 | 7.04 | 7.04 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.058 mg/l
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 0.058 | 0.058 mg/l |
| 14 Jul 2026, 14:44 | 0.052 | 0.052 mg/l |
| 12 Jun 2026, 11:38 | 0.18 | 0.18 mg/l |
| 21 May 2026, 10:24 | 0.1 | 0.1 mg/l |
| 9 Apr 2026, 09:21 | 0.2 | 0.2 mg/l |
| 17 Mar 2026, 09:36 | 0.16 | 0.16 mg/l |
| 4 Feb 2026, 10:21 | 0.22 | 0.22 mg/l |
| 8 Jan 2026, 10:48 | 0.5 | 0.5 mg/l |
| 10 Dec 2025, 12:17 | 0.046 | 0.046 mg/l |
| 14 Nov 2025, 10:55 | 0.074 | 0.074 mg/l |
| 20 Oct 2025, 08:49 | 1.4 | 1.4 mg/l |
| 25 Sep 2025, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2025, 09:48 | 0.081 | 0.081 mg/l |
| 17 Jul 2025, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jun 2025, 08:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2025, 09:20 | 0.41 | 0.41 mg/l |
| 24 Apr 2025, 13:09 | 0.12 | 0.12 mg/l |
| 7 Mar 2025, 10:39 | 0.35 | 0.35 mg/l |
| 12 Feb 2025, 10:30 | 0.27 | 0.27 mg/l |
| 23 Jan 2025, 13:05 | 0.12 | 0.12 mg/l |
| 12 Nov 2024, 10:56 | 0.13 | 0.13 mg/l |
| 9 Oct 2024, 10:14 | 0.19 | 0.19 mg/l |
| 11 Sep 2024, 10:18 | 0.055 | 0.055 mg/l |
| 1 Aug 2024, 10:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jul 2024, 09:09 | 0.048 | 0.048 mg/l |
| 21 Jun 2024, 13:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2024, 10:42 | 0.15 | 0.15 mg/l |
| 3 Jan 2024, 09:05 | 0.081 | 0.081 mg/l |
| 5 Dec 2023, 09:51 | 0.14 | 0.14 mg/l |
| 13 Nov 2023, 11:09 | 1.6 | 1.6 mg/l |
| 2 Oct 2023, 13:07 | 0.038 | 0.038 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18.9 mg/l
Sampled 1 Sep 2026, 30 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 18.9 | 18.9 mg/l |
| 14 Jul 2026, 14:44 | 21.9 | 21.9 mg/l |
| 12 Jun 2026, 11:38 | 12.7 | 12.7 mg/l |
| 21 May 2026, 10:24 | 14.8 | 14.8 mg/l |
| 9 Apr 2026, 09:21 | 9.54 | 9.54 mg/l |
| 17 Mar 2026, 09:36 | 5.92 | 5.92 mg/l |
| 4 Feb 2026, 10:21 | 2.28 | 2.28 mg/l |
| 8 Jan 2026, 10:48 | 4.67 | 4.67 mg/l |
| 10 Dec 2025, 12:17 | 4.07 | 4.07 mg/l |
| 14 Nov 2025, 10:55 | 6.81 | 6.81 mg/l |
| 20 Oct 2025, 08:49 | 7.52 | 7.52 mg/l |
| 25 Sep 2025, 11:04 | 19 | 19 mg/l |
| 1 Aug 2025, 09:48 | 7.79 | 7.79 mg/l |
| 17 Jul 2025, 09:13 | 15.9 | 15.9 mg/l |
| 25 Jun 2025, 08:46 | 17 | 17 mg/l |
| 13 May 2025, 09:20 | 7.86 | 7.86 mg/l |
| 24 Apr 2025, 13:09 | 4.8 | 4.8 mg/l |
| 7 Mar 2025, 10:39 | 5.4 | 5.4 mg/l |
| 12 Feb 2025, 10:30 | 5.14 | 5.14 mg/l |
| 23 Jan 2025, 13:05 | 6.79 | 6.79 mg/l |
| 12 Nov 2024, 10:56 | 6.77 | 6.77 mg/l |
| 9 Oct 2024, 10:14 | 1.84 | 1.84 mg/l |
| 11 Sep 2024, 10:18 | 5.81 | 5.81 mg/l |
| 1 Aug 2024, 10:44 | 9.77 | 9.77 mg/l |
| 9 Jul 2024, 09:09 | 9.04 | 9.04 mg/l |
| 21 Jun 2024, 13:00 | 13 | 13 mg/l |
| 5 Mar 2024, 10:42 | 4.86 | 4.86 mg/l |
| 1 Feb 2024, 11:24 | 6.25 | 6.25 mg/l |
| 3 Jan 2024, 09:05 | 2.37 | 2.37 mg/l |
| 5 Dec 2023, 09:51 | 3.15 | 3.15 mg/l |
| 13 Nov 2023, 11:09 | 3.22 | 3.22 mg/l |
| 2 Oct 2023, 13:07 | 12.9 | 12.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.1 mg/l
Sampled 1 Sep 2026, 30 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 0.1 | 0.1 mg/l |
| 14 Jul 2026, 14:44 | 0.12 | 0.12 mg/l |
| 12 Jun 2026, 11:38 | 0.064 | 0.064 mg/l |
| 21 May 2026, 10:24 | 0.066 | 0.066 mg/l |
| 9 Apr 2026, 09:21 | 0.044 | 0.044 mg/l |
| 17 Mar 2026, 09:36 | 0.05 | 0.05 mg/l |
| 4 Feb 2026, 10:21 | 0.14 | 0.14 mg/l |
| 8 Jan 2026, 10:48 | 0.048 | 0.048 mg/l |
| 10 Dec 2025, 12:17 | 0.083 | 0.083 mg/l |
| 14 Nov 2025, 10:55 | 0.063 | 0.063 mg/l |
| 20 Oct 2025, 08:49 | 0.22 | 0.22 mg/l |
| 25 Sep 2025, 11:04 | 0.048 | 0.048 mg/l |
| 1 Aug 2025, 09:48 | 0.11 | 0.11 mg/l |
| 17 Jul 2025, 09:13 | 0.086 | 0.086 mg/l |
| 25 Jun 2025, 08:46 | 0.086 | 0.086 mg/l |
| 13 May 2025, 09:20 | 0.14 | 0.14 mg/l |
| 24 Apr 2025, 13:09 | 0.074 | 0.074 mg/l |
| 7 Mar 2025, 10:39 | 0.037 | 0.037 mg/l |
| 12 Feb 2025, 10:30 | 0.059 | 0.059 mg/l |
| 23 Jan 2025, 13:05 | 0.05 | 0.05 mg/l |
| 12 Nov 2024, 10:56 | 0.058 | 0.058 mg/l |
| 9 Oct 2024, 10:14 | 0.13 | 0.13 mg/l |
| 11 Sep 2024, 10:18 | 0.13 | 0.13 mg/l |
| 1 Aug 2024, 10:44 | 0.11 | 0.11 mg/l |
| 9 Jul 2024, 09:09 | 0.085 | 0.085 mg/l |
| 21 Jun 2024, 13:00 | 0.051 | 0.051 mg/l |
| 5 Mar 2024, 10:42 | 0.07 | 0.07 mg/l |
| 1 Feb 2024, 11:24 | 0.041 | 0.041 mg/l |
| 3 Jan 2024, 09:05 | 0.05 | 0.05 mg/l |
| 5 Dec 2023, 09:51 | 0.083 | 0.083 mg/l |
| 13 Nov 2023, 11:09 | 0.06 | 0.06 mg/l |
| 2 Oct 2023, 13:07 | 0.064 | 0.064 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
935 µS/cm
Sampled 1 Sep 2026, 30 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:54 | 935 | 935 µS/cm |
| 14 Jul 2026, 14:44 | 971 | 971 µS/cm |
| 12 Jun 2026, 11:38 | 641 | 641 µS/cm |
| 21 May 2026, 10:24 | 715 | 715 µS/cm |
| 9 Apr 2026, 09:21 | 630 | 630 µS/cm |
| 17 Mar 2026, 09:36 | 530 | 530 µS/cm |
| 4 Feb 2026, 10:21 | 320 | 320 µS/cm |
| 8 Jan 2026, 10:48 | 623 | 623 µS/cm |
| 10 Dec 2025, 12:17 | 499 | 499 µS/cm |
| 14 Nov 2025, 10:55 | 556 | 556 µS/cm |
| 20 Oct 2025, 08:49 | 674 | 674 µS/cm |
| 25 Sep 2025, 11:04 | 841 | 841 µS/cm |
| 1 Aug 2025, 09:48 | 513 | 513 µS/cm |
| 17 Jul 2025, 09:13 | 870 | 870 µS/cm |
| 25 Jun 2025, 08:46 | 836 | 836 µS/cm |
| 13 May 2025, 09:20 | 688 | 688 µS/cm |
| 24 Apr 2025, 13:09 | 549 | 549 µS/cm |
| 7 Mar 2025, 10:39 | 572 | 572 µS/cm |
| 12 Feb 2025, 10:30 | 538 | 538 µS/cm |
| 23 Jan 2025, 13:05 | 570 | 570 µS/cm |
| 6 Dec 2024, 10:44 | 411 | 411 µS/cm |
| 12 Nov 2024, 10:56 | 602 | 602 µS/cm |
| 9 Oct 2024, 10:14 | 332 | 332 µS/cm |
| 11 Sep 2024, 10:18 | 576 | 576 µS/cm |
| 1 Aug 2024, 10:44 | 757 | 757 µS/cm |
| 9 Jul 2024, 09:09 | 604 | 604 µS/cm |
| 21 Jun 2024, 13:00 | 705 | 705 µS/cm |
| 5 Mar 2024, 10:42 | 503 | 503 µS/cm |
| 1 Feb 2024, 11:24 | 576 | 576 µS/cm |
| 3 Jan 2024, 09:05 | 367 | 367 µS/cm |
| 5 Dec 2023, 09:51 | 475 | 475 µS/cm |
| 13 Nov 2023, 11:09 | 455 | 455 µS/cm |
| 2 Oct 2023, 13:07 | 705 | 705 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 – Sep 2026 | 59.2% 1 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Sep 2026 | 5.79 mg/l 1 Sep 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Sep 2026 | 16.3 °C 1 Sep 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Sep 2026 | 7.14 1 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Sep 2026 | 0.058 mg/l 1 Sep 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Sep 2026 | 18.9 mg/l 1 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Sep 2026 | 0.1 mg/l 1 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Sep 2026 | 935 µS/cm 1 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Sep 2026 | 83 mg/l 1 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Sep 2026 | 0.00024 mg/l 1 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 28 | Oct 2023 – Mar 2026 | 1.8 mg/l 17 Mar 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Sep 2026 | 0.1 mg/l 1 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Sep 2026 | 19 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.