Lambourn at A4, Newbury
EA name: LAMBOURN AT A4, NEWBURY
Environment Agency sampling point TH-PKER0058 · 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
- 22 Jul 2026, 11:492 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 12 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 448692, 167433As published, to the nearest 1 m. Open in a map
- River, by its own name
- Lambourn
- River, by the map
- River LambournPlaced on the river its name gives, 16 m from the line.
- Next gauge downstream
- Reading Calcot Bridge On the River Kennet · 25 km along the river (the path rests on a repair to the map)
- Nearest gauge upstream
- Shaw On the River Lambourn · 1.8 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (32 samples)
Planned investigation (national agency policy) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.7%
Sampled 22 Jul 2026, 2 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 102.7 | 102.7% |
| 16 Jun 2026, 12:19 | 111.4 | 111.4% |
| 26 May 2026, 12:48 | 112 | 112% |
| 22 Apr 2026, 12:04 | 110 | 110% |
| 16 Mar 2026, 13:19 | 104.6 | 104.6% |
| 20 Feb 2026, 10:05 | 89.4 | 89.4% |
| 28 Jan 2026, 13:21 | 94.5 | 94.5% |
| 8 Dec 2025, 10:49 | 97.6 | 97.6% |
| 24 Nov 2025, 11:22 | 99.2 | 99.2% |
| 22 Oct 2025, 11:58 | 94.6 | 94.6% |
| 26 Sep 2025, 11:09 | 98.2 | 98.2% |
| 21 Aug 2025, 09:29 | 97 | 97% |
| 15 Jul 2025, 13:47 | 106.1 | 106.1% |
| 23 Jun 2025, 10:37 | 100.9 | 100.9% |
| 22 May 2025, 09:10 | 97.3 | 97.3% |
| 3 Apr 2025, 12:39 | 112.6 | 112.6% |
| 19 Mar 2025, 12:02 | 106.4 | 106.4% |
| 19 Feb 2025, 11:14 | 99.8 | 99.8% |
| 23 Jan 2025, 11:55 | 98.4 | 98.4% |
| 13 Dec 2024, 10:16 | 96.3 | 96.3% |
| 25 Nov 2024, 11:43 | 91.3 | 91.3% |
| 17 Oct 2024, 13:11 | 99 | 99% |
| 20 Sep 2024, 10:19 | 91.8 | 91.8% |
| 22 Aug 2024, 08:47 | 71.1 | 71.1% |
| 17 Jul 2024, 12:15 | 102.6 | 102.6% |
| 27 Jun 2024, 11:50 | 97.9 | 97.9% |
| 8 May 2024, 13:25 | 111.1 | 111.1% |
| 3 Apr 2024, 11:15 | 99.8 | 99.8% |
| 4 Mar 2024, 11:12 | 100.8 | 100.8% |
| 6 Feb 2024, 11:33 | 99.9 | 99.9% |
| 2 Jan 2024, 11:21 | 95.5 | 95.5% |
| 5 Dec 2023, 13:35 | 93.8 | 93.8% |
| 6 Nov 2023, 11:10 | 94.8 | 94.8% |
| 12 Oct 2023, 09:50 | 89.7 | 89.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.2 mg/l
Sampled 22 Jul 2026, 2 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 10.2 | 10.2 mg/l |
| 16 Jun 2026, 12:19 | 11.2 | 11.2 mg/l |
| 26 May 2026, 12:48 | 10.8 | 10.8 mg/l |
| 22 Apr 2026, 12:04 | 12.3 | 12.3 mg/l |
| 16 Mar 2026, 13:19 | 11.8 | 11.8 mg/l |
| 20 Feb 2026, 10:05 | 10.5 | 10.5 mg/l |
| 28 Jan 2026, 13:21 | 11.2 | 11.2 mg/l |
| 8 Dec 2025, 10:49 | 11 | 11 mg/l |
| 24 Nov 2025, 11:22 | 11.8 | 11.8 mg/l |
| 22 Oct 2025, 11:58 | 10.4 | 10.4 mg/l |
| 26 Sep 2025, 11:09 | 11 | 11 mg/l |
| 21 Aug 2025, 09:29 | 10.2 | 10.2 mg/l |
| 15 Jul 2025, 13:47 | 10.6 | 10.6 mg/l |
| 23 Jun 2025, 10:37 | 10.3 | 10.3 mg/l |
| 22 May 2025, 09:10 | 10.7 | 10.7 mg/l |
| 3 Apr 2025, 12:39 | 12.5 | 12.5 mg/l |
| 19 Mar 2025, 12:02 | 12.4 | 12.4 mg/l |
| 19 Feb 2025, 11:14 | 12.2 | 12.2 mg/l |
| 23 Jan 2025, 11:55 | 11.8 | 11.8 mg/l |
| 13 Dec 2024, 10:16 | 11.2 | 11.2 mg/l |
| 25 Nov 2024, 11:43 | 10.3 | 10.3 mg/l |
| 17 Oct 2024, 13:11 | 10.5 | 10.5 mg/l |
| 20 Sep 2024, 10:19 | 9.5 | 9.5 mg/l |
| 22 Aug 2024, 08:47 | 7.32 | 7.32 mg/l |
| 17 Jul 2024, 12:15 | 10.5 | 10.5 mg/l |
| 27 Jun 2024, 11:50 | 9.95 | 9.95 mg/l |
| 8 May 2024, 13:25 | 11.5 | 11.5 mg/l |
| 3 Apr 2024, 11:15 | 11 | 11 mg/l |
| 4 Mar 2024, 11:12 | 12 | 12 mg/l |
| 6 Feb 2024, 11:33 | 11.1 | 11.1 mg/l |
| 2 Jan 2024, 11:21 | 10.7 | 10.7 mg/l |
| 5 Dec 2023, 13:35 | 10.9 | 10.9 mg/l |
| 6 Nov 2023, 11:10 | 10.8 | 10.8 mg/l |
| 12 Oct 2023, 09:50 | 9.45 | 9.45 mg/l |
Water temperature
code 0076 · °C
15.8 °C
Sampled 22 Jul 2026, 2 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 15.8 | 15.8 °C |
| 16 Jun 2026, 12:19 | 15.2 | 15.2 °C |
| 26 May 2026, 12:48 | 16.9 | 16.9 °C |
| 22 Apr 2026, 12:04 | 10.2 | 10.2 °C |
| 16 Mar 2026, 13:19 | 9.9 | 9.9 °C |
| 20 Feb 2026, 10:05 | 8.3 | 8.3 °C |
| 28 Jan 2026, 13:21 | 8 | 8 °C |
| 8 Dec 2025, 10:49 | 10.1 | 10.1 °C |
| 24 Nov 2025, 11:22 | 7.7 | 7.7 °C |
| 22 Oct 2025, 11:58 | 11 | 11 °C |
| 26 Sep 2025, 11:09 | 10.1 | 10.1 °C |
| 21 Aug 2025, 09:29 | 13.1 | 13.1 °C |
| 15 Jul 2025, 13:47 | 15.4 | 15.4 °C |
| 23 Jun 2025, 10:37 | 14.5 | 14.5 °C |
| 22 May 2025, 09:10 | 11.1 | 11.1 °C |
| 3 Apr 2025, 12:39 | 10.7 | 10.7 °C |
| 19 Mar 2025, 12:02 | 8.7 | 8.7 °C |
| 19 Feb 2025, 11:14 | 6.8 | 6.8 °C |
| 23 Jan 2025, 11:55 | 7.5 | 7.5 °C |
| 13 Dec 2024, 10:16 | 8.8 | 8.8 °C |
| 25 Nov 2024, 11:43 | 10.1 | 10.1 °C |
| 17 Oct 2024, 13:11 | 12.4 | 12.4 °C |
| 20 Sep 2024, 10:19 | 13.7 | 13.7 °C |
| 22 Aug 2024, 08:47 | 13.9 | 13.9 °C |
| 17 Jul 2024, 12:15 | 14 | 14 °C |
| 27 Jun 2024, 11:50 | 14.5 | 14.5 °C |
| 8 May 2024, 13:25 | 13.6 | 13.6 °C |
| 3 Apr 2024, 11:15 | 10.9 | 10.9 °C |
| 4 Mar 2024, 11:12 | 7.6 | 7.6 °C |
| 6 Feb 2024, 11:33 | 10.5 | 10.5 °C |
| 2 Jan 2024, 11:21 | 10.2 | 10.2 °C |
| 5 Dec 2023, 13:35 | 8.9 | 8.9 °C |
| 6 Nov 2023, 11:10 | 9.7 | 9.7 °C |
| 12 Oct 2023, 09:50 | 12.9 | 12.9 °C |
pH
code 0061
7.96
Sampled 22 Jul 2026, 2 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 7.96 | 7.96 |
| 16 Jun 2026, 12:19 | 8.13 | 8.13 |
| 26 May 2026, 12:48 | 8.16 | 8.16 |
| 22 Apr 2026, 12:04 | 8.1 | 8.1 |
| 16 Mar 2026, 13:19 | 8.1 | 8.1 |
| 20 Feb 2026, 10:05 | 8.1 | 8.1 |
| 28 Jan 2026, 13:21 | 8.1 | 8.1 |
| 8 Dec 2025, 10:49 | 8.2 | 8.2 |
| 24 Nov 2025, 11:22 | 8.1 | 8.1 |
| 22 Oct 2025, 11:58 | 8.1 | 8.1 |
| 26 Sep 2025, 11:09 | 8.1 | 8.1 |
| 21 Aug 2025, 09:29 | 8.2 | 8.2 |
| 15 Jul 2025, 13:47 | 8.2 | 8.2 |
| 23 Jun 2025, 10:37 | 8.2 | 8.2 |
| 22 May 2025, 09:10 | 8.14 | 8.14 |
| 3 Apr 2025, 12:39 | 8.06 | 8.06 |
| 19 Mar 2025, 12:02 | 8.2 | 8.2 |
| 19 Feb 2025, 11:14 | 8.1 | 8.1 |
| 23 Jan 2025, 11:55 | 8.1 | 8.1 |
| 13 Dec 2024, 10:16 | 8.1 | 8.1 |
| 25 Nov 2024, 11:43 | 8 | 8 |
| 17 Oct 2024, 13:11 | 8.4 | 8.4 |
| 20 Sep 2024, 10:19 | 8.2 | 8.2 |
| 22 Aug 2024, 08:47 | 7.7 | 7.7 |
| 17 Jul 2024, 12:15 | 8.1 | 8.1 |
| 27 Jun 2024, 11:50 | 8.1 | 8.1 |
| 8 May 2024, 13:25 | 8.13 | 8.13 |
| 3 Apr 2024, 11:15 | 8.13 | 8.13 |
| 4 Mar 2024, 11:12 | 8.1 | 8.1 |
| 6 Feb 2024, 11:33 | 8.1 | 8.1 |
| 2 Jan 2024, 11:21 | 7.97 | 7.97 |
| 5 Dec 2023, 13:35 | 7.99 | 7.99 |
| 6 Nov 2023, 11:10 | 7.94 | 7.94 |
| 12 Oct 2023, 09:50 | 7.94 | 7.94 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 22 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jun 2026, 12:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 May 2026, 12:48 | 0.07 | 0.07 mg/l |
| 22 Apr 2026, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Mar 2026, 13:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2026, 10:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2026, 13:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Dec 2025, 10:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Nov 2025, 11:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Oct 2025, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Sep 2025, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2025, 09:29 | 0.036 | 0.036 mg/l |
| 15 Jul 2025, 13:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jun 2025, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 May 2025, 09:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2025, 12:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2025, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jan 2025, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Dec 2024, 10:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Nov 2024, 11:43 | 0.036 | 0.036 mg/l |
| 17 Oct 2024, 13:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Sep 2024, 10:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2024, 08:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 12:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jun 2024, 11:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2024, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2024, 11:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2024, 11:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Dec 2023, 13:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2023, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Oct 2023, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.68 mg/l
Sampled 22 Jul 2026, 2 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 7.68 | 7.68 mg/l |
| 16 Jun 2026, 12:19 | 7.98 | 7.98 mg/l |
| 26 May 2026, 12:48 | 8.38 | 8.38 mg/l |
| 22 Apr 2026, 12:04 | 8.79 | 8.79 mg/l |
| 16 Mar 2026, 13:19 | 8.89 | 8.89 mg/l |
| 20 Feb 2026, 10:05 | 8.79 | 8.79 mg/l |
| 28 Jan 2026, 13:21 | 8.29 | 8.29 mg/l |
| 8 Dec 2025, 10:49 | 7.89 | 7.89 mg/l |
| 24 Nov 2025, 11:22 | 7.79 | 7.79 mg/l |
| 22 Oct 2025, 11:58 | 7.59 | 7.59 mg/l |
| 26 Sep 2025, 11:09 | 7.99 | 7.99 mg/l |
| 21 Aug 2025, 09:29 | 7.79 | 7.79 mg/l |
| 15 Jul 2025, 13:47 | 8.09 | 8.09 mg/l |
| 23 Jun 2025, 10:37 | 8.39 | 8.39 mg/l |
| 22 May 2025, 09:10 | 8.99 | 8.99 mg/l |
| 19 Mar 2025, 12:02 | 8.79 | 8.79 mg/l |
| 19 Feb 2025, 11:14 | 8.59 | 8.59 mg/l |
| 23 Jan 2025, 11:55 | 8.99 | 8.99 mg/l |
| 13 Dec 2024, 10:16 | 8.79 | 8.79 mg/l |
| 25 Nov 2024, 11:43 | 6.28 | 6.28 mg/l |
| 17 Oct 2024, 13:11 | 7.79 | 7.79 mg/l |
| 20 Sep 2024, 10:19 | 7.69 | 7.69 mg/l |
| 22 Aug 2024, 08:47 | 4.99 | 4.99 mg/l |
| 17 Jul 2024, 12:15 | 8.08 | 8.08 mg/l |
| 27 Jun 2024, 11:50 | 8.28 | 8.28 mg/l |
| 4 Mar 2024, 11:12 | 8.49 | 8.49 mg/l |
| 2 Jan 2024, 11:21 | 7.78 | 7.78 mg/l |
| 5 Dec 2023, 13:35 | 8.19 | 8.19 mg/l |
| 6 Nov 2023, 11:10 | 7.19 | 7.19 mg/l |
| 12 Oct 2023, 09:50 | 7.19 | 7.19 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.038 mg/l
Sampled 22 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 0.038 | 0.038 mg/l |
| 16 Jun 2026, 12:19 | 0.025 | 0.025 mg/l |
| 26 May 2026, 12:48 | 0.032 | 0.032 mg/l |
| 22 Apr 2026, 12:04 | 0.037 | 0.037 mg/l |
| 16 Mar 2026, 13:19 | 0.062 | 0.062 mg/l |
| 20 Feb 2026, 10:05 | 0.057 | 0.057 mg/l |
| 28 Jan 2026, 13:21 | 0.053 | 0.053 mg/l |
| 8 Dec 2025, 10:49 | 0.038 | 0.038 mg/l |
| 24 Nov 2025, 11:22 | 0.034 | 0.034 mg/l |
| 22 Oct 2025, 11:58 | 0.035 | 0.035 mg/l |
| 26 Sep 2025, 11:09 | 0.034 | 0.034 mg/l |
| 21 Aug 2025, 09:29 | 0.021 | 0.021 mg/l |
| 15 Jul 2025, 13:47 | 0.034 | 0.034 mg/l |
| 23 Jun 2025, 10:37 | 0.034 | 0.034 mg/l |
| 22 May 2025, 09:10 | 0.044 | 0.044 mg/l |
| 19 Mar 2025, 12:02 | 0.047 | 0.047 mg/l |
| 19 Feb 2025, 11:14 | 0.045 | 0.045 mg/l |
| 23 Jan 2025, 11:55 | 0.054 | 0.054 mg/l |
| 13 Dec 2024, 10:16 | 0.048 | 0.048 mg/l |
| 25 Nov 2024, 11:43 | 0.092 | 0.092 mg/l |
| 17 Oct 2024, 13:11 | 0.036 | 0.036 mg/l |
| 20 Sep 2024, 10:19 | 0.07 | 0.07 mg/l |
| 22 Aug 2024, 08:47 | 0.034 | 0.034 mg/l |
| 17 Jul 2024, 12:15 | 0.036 | 0.036 mg/l |
| 27 Jun 2024, 11:50 | 0.035 | 0.035 mg/l |
| 4 Mar 2024, 11:12 | 0.065 | 0.065 mg/l |
| 6 Feb 2024, 11:33 | 0.065 | 0.065 mg/l |
| 2 Jan 2024, 11:21 | 0.072 | 0.072 mg/l |
| 5 Dec 2023, 13:35 | 0.061 | 0.061 mg/l |
| 6 Nov 2023, 11:10 | 0.036 | 0.036 mg/l |
| 12 Oct 2023, 09:50 | 0.031 | 0.031 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
579 µS/cm
Sampled 22 Jul 2026, 2 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jul 2026, 11:49 | 579 | 579 µS/cm |
| 16 Jun 2026, 12:19 | 591 | 591 µS/cm |
| 26 May 2026, 12:48 | 595 | 595 µS/cm |
| 22 Apr 2026, 12:04 | 597 | 597 µS/cm |
| 16 Mar 2026, 13:19 | 607 | 607 µS/cm |
| 20 Feb 2026, 10:05 | 600 | 600 µS/cm |
| 28 Jan 2026, 13:21 | 592 | 592 µS/cm |
| 8 Dec 2025, 10:49 | 608 | 608 µS/cm |
| 24 Nov 2025, 11:22 | 606 | 606 µS/cm |
| 22 Oct 2025, 11:58 | 594 | 594 µS/cm |
| 26 Sep 2025, 11:09 | 598 | 598 µS/cm |
| 21 Aug 2025, 09:29 | 584 | 584 µS/cm |
| 15 Jul 2025, 13:47 | 585 | 585 µS/cm |
| 23 Jun 2025, 10:37 | 592 | 592 µS/cm |
| 22 May 2025, 09:10 | 600 | 600 µS/cm |
| 3 Apr 2025, 12:39 | 600 | 600 µS/cm |
| 19 Mar 2025, 12:02 | 596 | 596 µS/cm |
| 19 Feb 2025, 11:14 | 604 | 604 µS/cm |
| 23 Jan 2025, 11:55 | 598 | 598 µS/cm |
| 13 Dec 2024, 10:16 | 603 | 603 µS/cm |
| 25 Nov 2024, 11:43 | 528 | 528 µS/cm |
| 17 Oct 2024, 13:11 | 599 | 599 µS/cm |
| 20 Sep 2024, 10:19 | 611 | 611 µS/cm |
| 22 Aug 2024, 08:47 | 682 | 682 µS/cm |
| 17 Jul 2024, 12:15 | 600 | 600 µS/cm |
| 27 Jun 2024, 11:50 | 594 | 594 µS/cm |
| 8 May 2024, 13:25 | 595 | 595 µS/cm |
| 3 Apr 2024, 11:15 | 595 | 595 µS/cm |
| 4 Mar 2024, 11:12 | 610 | 610 µS/cm |
| 6 Feb 2024, 11:33 | 612 | 612 µS/cm |
| 2 Jan 2024, 11:21 | 559 | 559 µS/cm |
| 5 Dec 2023, 13:35 | 610 | 610 µS/cm |
| 6 Nov 2023, 11:10 | 610 | 610 µS/cm |
| 12 Oct 2023, 09:50 | 593 | 593 µS/cm |
Everything measured here
110 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 110 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Jul 2026 | 102.7% 22 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Jul 2026 | 10.2 mg/l 22 Jul 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Jul 2026 | 15.8 °C 22 Jul 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Jul 2026 | 7.96 22 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Jul 2026 | below 0.03 mg/l 22 Jul 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Jul 2026 | 7.68 mg/l 22 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – Jul 2026 | 0.038 mg/l 22 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Jul 2026 | 579 µS/cm 22 Jul 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Nov 2023 – Feb 2025 | below 0.002 µg/l 19 Feb 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Nov 2023 – Feb 2025 | below 0.004 µg/l 19 Feb 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 3 | Nov 2023 – Feb 2025 | below 0.005 µg/l 19 Feb 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Nov 2023 – Feb 2025 | 0.014 µg/l 19 Feb 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Jul 2026 | 240 mg/l 22 Jul 2026 |
| Aluminium 6057 | River water | 26 | Apr 2024 – Jul 2026 | 37 µg/l 22 Jul 2026 |
| Aluminium, Dissolved 6037 | River water | 24 | Jun 2024 – Jul 2026 | below 20 µg/l 22 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Jul 2026 | below 0.00076 mg/l 22 Jul 2026 |
| Barium 6062 | River water | 26 | Apr 2024 – Jul 2026 | 21 µg/l 22 Jul 2026 |
| Barium, Dissolved 9446 | River water | 24 | Jun 2024 – Jul 2026 | 20 µg/l 22 Jul 2026 |
| Bicarbonate as HCO3 9584 | River water | 24 | Jun 2024 – Jul 2026 | 293 mg/l 22 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 28 | Oct 2023 – May 2026 | 3.4 mg/l 26 May 2026 |
| Boron 6059 | River water | 26 | Apr 2024 – Jul 2026 | below 100 µg/l 22 Jul 2026 |
| Boron, Dissolved 9447 | River water | 24 | Jun 2024 – Jul 2026 | below 100 µg/l 22 Jul 2026 |
| Cadmium 0108 | River water | 26 | Apr 2024 – Jul 2026 | below 0.1 µg/l 22 Jul 2026 |
| Cadmium, Dissolved 0106 | River water | 24 | Jun 2024 – Jul 2026 | below 0.01 µg/l 22 Jul 2026 |
| Calcium 0241 | River water | 26 | Apr 2024 – Jul 2026 | 110 mg/l 22 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 24 | Jun 2024 – Jul 2026 | 110 mg/l 22 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 24 | Jun 2024 – Jul 2026 | 1.4 mg/l 22 Jul 2026 |
| Chloride 0172 | River water | 24 | Jun 2024 – Jul 2026 | 20 mg/l 22 Jul 2026 |
| Chromium 3164 | River water | 26 | Apr 2024 – Jul 2026 | below 0.5 µg/l 22 Jul 2026 |
| Chromium, Dissolved 3409 | River water | 24 | Jun 2024 – Jul 2026 | below 0.5 µg/l 22 Jul 2026 |
| Copper 6452 | River water | 26 | Apr 2024 – Jul 2026 | below 1 µg/l 22 Jul 2026 |
| Copper : BLM Bioavailable 4821 | River water | 24 | Jun 2024 – Jul 2026 | 0.13 µg/l 22 Jul 2026 |
| Copper, Dissolved 6450 | River water | 24 | Jun 2024 – Jul 2026 | 0.44 µg/l 22 Jul 2026 |
| Fluoride 0177 | River water | 24 | Jun 2024 – Jul 2026 | 0.11 mg/l 22 Jul 2026 |
| Hardness, Total as CaCO3 0158 | River water | 24 | Jun 2024 – Jul 2026 | 282 mg/l 22 Jul 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| Ionic Balance 7044 | River water | 24 | Jun 2024 – Jul 2026 | -1.35% 22 Jul 2026 |
| Ionic Balance: Dissolved 3386 | River water | 24 | Jun 2024 – Jul 2026 | -1.24% 22 Jul 2026 |
| Iron 6051 | River water | 26 | Apr 2024 – Jul 2026 | 100 µg/l 22 Jul 2026 |
| Iron, Dissolved 6460 | River water | 24 | Jun 2024 – Jul 2026 | 37 µg/l 22 Jul 2026 |
| Lead 0050 | River water | 26 | Apr 2024 – Jul 2026 | below 2 µg/l 22 Jul 2026 |
| Lead : BLM Bioavailable 3377 | River water | 24 | Jun 2024 – Jul 2026 | 0.04 µg/l 22 Jul 2026 |
| Lead, Dissolved 0052 | River water | 24 | Jun 2024 – Jul 2026 | below 0.1 µg/l 22 Jul 2026 |
| Lithium 6064 | River water | 26 | Apr 2024 – Jul 2026 | below 100 µg/l 22 Jul 2026 |
| Lithium, Dissolved 4201 | River water | 24 | Jun 2024 – Jul 2026 | below 100 µg/l 22 Jul 2026 |
| Magnesium 0237 | River water | 26 | Apr 2024 – Jul 2026 | 1.8 mg/l 22 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 24 | Jun 2024 – Jul 2026 | 1.8 mg/l 22 Jul 2026 |
| Manganese 6050 | River water | 26 | Apr 2024 – Jul 2026 | below 10 µg/l 22 Jul 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 24 | Jun 2024 – Jul 2026 | 2.6 µg/l 22 Jul 2026 |
| Manganese, Dissolved 6458 | River water | 24 | Jun 2024 – Jul 2026 | below 10 µg/l 22 Jul 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Nov 2023 – Feb 2025 | below 0.002 µg/l 19 Feb 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Nov 2023 – Feb 2025 | below 0.002 µg/l 19 Feb 2025 |
| Nickel 6462 | River water | 26 | Apr 2024 – Jul 2026 | below 1 µg/l 22 Jul 2026 |
| Nickel : BLM Bioavailable 3878 | River water | 24 | Jun 2024 – Jul 2026 | 0.32 µg/l 22 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 24 | Jun 2024 – Jul 2026 | 0.53 µg/l 22 Jul 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Jul 2026 | 0.019 mg/l 22 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Jul 2026 | 7.7 mg/l 22 Jul 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Mar 2024 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| Perfluorobutanoic acid 2995 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Nov 2023 – Feb 2025 | below 0.002 µg/l 19 Feb 2025 |
| Perfluorodecanoic acid 8892 | River water | 14 | Nov 2023 – Mar 2025 | below 0.002 µg/l 19 Mar 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Nov 2023 – Feb 2025 | below 0.005 µg/l 19 Feb 2025 |
| Perfluorododecanoic acid 8894 | River water | 14 | Nov 2023 – Mar 2025 | below 0.002 µg/l 19 Mar 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluoroheptanoic acid 8889 | River water | 14 | Nov 2023 – Mar 2025 | below 0.001 µg/l 19 Mar 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 3 | Nov 2023 – Feb 2025 | 0.0013 µg/l 19 Feb 2025 |
| Perfluorohexanoic acid 8888 | River water | 14 | Nov 2023 – Mar 2025 | below 0.0005 µg/l 19 Mar 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorononanoic acid 8891 | River water | 14 | Nov 2023 – Mar 2025 | below 0.001 µg/l 19 Mar 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Nov 2023 – Feb 2025 | below 0.002 µg/l 19 Feb 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Nov 2023 – Feb 2025 | below 0.001 µg/l 19 Feb 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluorooctanoic acid 8890 | River water | 14 | Nov 2023 – Mar 2025 | below 0.0005 µg/l 19 Mar 2025 |
| Perfluorooctylsulphonate anion 9276 | River water | 11 | Apr 2024 – Mar 2025 | 0.00092 µg/l 19 Mar 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Nov 2023 – Feb 2025 | below 0.0005 µg/l 19 Feb 2025 |
| Perfluoropentanoic acid 8887 | River water | 14 | Nov 2023 – Mar 2025 | below 0.001 µg/l 19 Mar 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 3 | Nov 2023 – Feb 2025 | below 0.006 µg/l 19 Feb 2025 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Nov 2023 – Feb 2025 | below 0.005 µg/l 19 Feb 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Nov 2023 – Feb 2025 | below 0.004 µg/l 19 Feb 2025 |
| Perfluoroundecanoic acid 8893 | River water | 14 | Nov 2023 – Mar 2025 | below 0.002 µg/l 19 Mar 2025 |
| Potassium 0211 | River water | 26 | Apr 2024 – Jul 2026 | 1.6 mg/l 22 Jul 2026 |
| Potassium, Dissolved 0209 | River water | 24 | Jun 2024 – Jul 2026 | 1.8 mg/l 22 Jul 2026 |
| Silica, reactive as SiO2 0182 | River water | 24 | Jun 2024 – Jul 2026 | 15 mg/l 22 Jul 2026 |
| Sodium 0207 | River water | 26 | Apr 2024 – Jul 2026 | 9.7 mg/l 22 Jul 2026 |
| Sodium, Dissolved 0205 | River water | 24 | Jun 2024 – Jul 2026 | 9.9 mg/l 22 Jul 2026 |
| Strontium 6063 | River water | 26 | Apr 2024 – Jul 2026 | 280 µg/l 22 Jul 2026 |
| Strontium, Filtered 6693 | River water | 24 | Jun 2024 – Jul 2026 | 280 µg/l 22 Jul 2026 |
| Sulphate as SO4 0183 | River water | 26 | Apr 2024 – Jul 2026 | 17 mg/l 22 Jul 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 24 | Jun 2024 – Jul 2026 | 17 mg/l 22 Jul 2026 |
| Zinc 6455 | River water | 26 | Apr 2024 – Jul 2026 | 6.7 µg/l 22 Jul 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 24 | Jun 2024 – Jul 2026 | 4.4 µg/l 22 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 24 | Jun 2024 – Jul 2026 | 7 µg/l 22 Jul 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.