Ray (Oxon) at B4027, Islip
EA name: RAY ( OXON ) AT B4027, ISLIP
Environment Agency sampling point TH-PCHR0040 · 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
- 4 Sep 2026, 09:4127 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 38 since 20 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 452776, 213932As published, to the nearest 1 m. Open in a map
- River, by its own name
- Ray
- River, by the map
- River RayPlaced on the river its name gives, 13 m from the line.
- Next gauge downstream
- Islip On the River Ray · 0.5 km along the river
- Nearest gauge upstream
- Wendlebury On the Wendlebury Brook · 10 km along the riverLower Arncott On the River Ray · 11 km along the riverLangford Village On the Langford Brook · 14 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (35 samples)
Monitoring (national agency policy) (3 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
39.5%
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 39.5 | 39.5% |
| 14 Aug 2026, 10:06 | 13.8 | 13.8% |
| 22 Jul 2026, 11:52 | 51.1 | 51.1% |
| 26 Jun 2026, 09:27 | 65.4 | 65.4% |
| 8 May 2026, 12:29 | 14.3 | 14.3% |
| 10 Apr 2026, 10:28 | 89.8 | 89.8% |
| 6 Mar 2026, 10:43 | 72.8 | 72.8% |
| 2 Feb 2026, 11:20 | 73.2 | 73.2% |
| 2 Jan 2026, 10:57 | 83.5 | 83.5% |
| 2 Dec 2025, 13:44 | 76.8 | 76.8% |
| 6 Nov 2025, 10:05 | 33.6 | 33.6% |
| 3 Oct 2025, 10:58 | 53.5 | 53.5% |
| 8 Sep 2025, 12:39 | 63.3 | 63.3% |
| 22 Aug 2025, 11:29 | 60.8 | 60.8% |
| 29 Jul 2025, 12:22 | 71.8 | 71.8% |
| 4 Jun 2025, 09:16 | 66.5 | 66.5% |
| 7 May 2025, 12:02 | 99.7 | 99.7% |
| 11 Apr 2025, 11:35 | 112.3 | 112.3% |
| 13 Mar 2025, 09:20 | 87.4 | 87.4% |
| 10 Feb 2025, 13:19 | 90.9 | 90.9% |
| 27 Jan 2025, 11:23 | 86.3 | 86.3% |
| 2 Dec 2024, 11:58 | 83.1 | 83.1% |
| 18 Nov 2024, 12:38 | 83.7 | 83.7% |
| 16 Oct 2024, 12:42 | 57.6 | 57.6% |
| 19 Sep 2024, 09:00 | 77.4 | 77.4% |
| 2 Sep 2024, 12:34 | 61 | 61% |
| 29 Jul 2024, 09:42 | 77.9 | 77.9% |
| 24 Jun 2024, 09:32 | 72.9 | 72.9% |
| 24 May 2024, 08:52 | 63.6 | 63.6% |
| 15 Apr 2024, 09:07 | 87 | 87% |
| 21 Mar 2024, 11:48 | 78.8 | 78.8% |
| 22 Feb 2024, 09:15 | 78.3 | 78.3% |
| 16 Jan 2024, 09:44 | 80.6 | 80.6% |
| 7 Dec 2023, 09:28 | 94.8 | 94.8% |
| 23 Nov 2023, 11:01 | 61.6 | 61.6% |
| 9 Nov 2023, 08:31 | 59.5 | 59.5% |
| 20 Oct 2023, 11:33 | 59.7 | 59.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
3.77 mg/l
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 3.77 | 3.77 mg/l |
| 14 Aug 2026, 10:06 | 1.29 | 1.29 mg/l |
| 22 Jul 2026, 11:52 | 4.78 | 4.78 mg/l |
| 26 Jun 2026, 09:27 | 5.53 | 5.53 mg/l |
| 8 May 2026, 12:29 | 1.46 | 1.46 mg/l |
| 10 Apr 2026, 10:28 | 9.77 | 9.77 mg/l |
| 6 Mar 2026, 10:43 | 8.36 | 8.36 mg/l |
| 2 Feb 2026, 11:20 | 8.87 | 8.87 mg/l |
| 2 Jan 2026, 10:57 | 10.9 | 10.9 mg/l |
| 2 Dec 2025, 13:44 | 8.91 | 8.91 mg/l |
| 6 Nov 2025, 10:05 | 3.56 | 3.56 mg/l |
| 3 Oct 2025, 10:58 | 5.59 | 5.59 mg/l |
| 8 Sep 2025, 12:39 | 6.14 | 6.14 mg/l |
| 22 Aug 2025, 11:29 | 6.1 | 6.1 mg/l |
| 29 Jul 2025, 12:22 | 6.88 | 6.88 mg/l |
| 4 Jun 2025, 09:16 | 6.67 | 6.67 mg/l |
| 7 May 2025, 12:02 | 10.4 | 10.4 mg/l |
| 11 Apr 2025, 11:35 | 12.2 | 12.2 mg/l |
| 13 Mar 2025, 09:20 | 10.9 | 10.9 mg/l |
| 10 Feb 2025, 13:19 | 11.6 | 11.6 mg/l |
| 27 Jan 2025, 11:23 | 10.9 | 10.9 mg/l |
| 2 Dec 2024, 11:58 | 9.54 | 9.54 mg/l |
| 18 Nov 2024, 12:38 | 9.71 | 9.71 mg/l |
| 16 Oct 2024, 12:42 | 6.04 | 6.04 mg/l |
| 19 Sep 2024, 09:00 | 7.87 | 7.87 mg/l |
| 2 Sep 2024, 12:34 | 5.74 | 5.74 mg/l |
| 29 Jul 2024, 09:42 | 7.42 | 7.42 mg/l |
| 24 Jun 2024, 09:32 | 6.86 | 6.86 mg/l |
| 24 May 2024, 08:52 | 6.61 | 6.61 mg/l |
| 15 Apr 2024, 09:07 | 9.73 | 9.73 mg/l |
| 21 Mar 2024, 11:48 | 8.51 | 8.51 mg/l |
| 22 Feb 2024, 09:15 | 9.04 | 9.04 mg/l |
| 16 Jan 2024, 09:44 | 11.1 | 11.1 mg/l |
| 7 Dec 2023, 09:28 | 11.8 | 11.8 mg/l |
| 23 Nov 2023, 11:01 | 7.02 | 7.02 mg/l |
| 9 Nov 2023, 08:31 | 6.98 | 6.98 mg/l |
| 20 Oct 2023, 11:33 | 6.21 | 6.21 mg/l |
Water temperature
code 0076 · °C
17.5 °C
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 17.5 | 17.5 °C |
| 14 Aug 2026, 10:06 | 18.6 | 18.6 °C |
| 22 Jul 2026, 11:52 | 18.5 | 18.5 °C |
| 26 Jun 2026, 09:27 | 23.6 | 23.6 °C |
| 8 May 2026, 12:29 | 14.3 | 14.3 °C |
| 10 Apr 2026, 10:28 | 11.5 | 11.5 °C |
| 6 Mar 2026, 10:43 | 9.2 | 9.2 °C |
| 2 Feb 2026, 11:20 | 7 | 7 °C |
| 2 Jan 2026, 10:57 | 4.1 | 4.1 °C |
| 2 Dec 2025, 13:44 | 8.8 | 8.8 °C |
| 6 Nov 2025, 10:05 | 12.7 | 12.7 °C |
| 3 Oct 2025, 10:58 | 13.3 | 13.3 °C |
| 8 Sep 2025, 12:39 | 16.7 | 16.7 °C |
| 22 Aug 2025, 11:29 | 15.1 | 15.1 °C |
| 29 Jul 2025, 12:22 | 17.3 | 17.3 °C |
| 4 Jun 2025, 09:16 | 15.1 | 15.1 °C |
| 7 May 2025, 12:02 | 13.2 | 13.2 °C |
| 11 Apr 2025, 11:35 | 11.6 | 11.6 °C |
| 13 Mar 2025, 09:20 | 5.9 | 5.9 °C |
| 10 Feb 2025, 13:19 | 5 | 5 °C |
| 27 Jan 2025, 11:23 | 5.3 | 5.3 °C |
| 2 Dec 2024, 11:58 | 9.2 | 9.2 °C |
| 18 Nov 2024, 12:38 | 8.8 | 8.8 °C |
| 16 Oct 2024, 12:42 | 13.1 | 13.1 °C |
| 19 Sep 2024, 09:00 | 14.5 | 14.5 °C |
| 2 Sep 2024, 12:34 | 18.2 | 18.2 °C |
| 29 Jul 2024, 09:42 | 17.6 | 17.6 °C |
| 24 Jun 2024, 09:32 | 18.2 | 18.2 °C |
| 24 May 2024, 08:52 | 13.5 | 13.5 °C |
| 15 Apr 2024, 09:07 | 10.3 | 10.3 °C |
| 21 Mar 2024, 11:48 | 11.8 | 11.8 °C |
| 22 Feb 2024, 09:15 | 9 | 9 °C |
| 16 Jan 2024, 09:44 | 2.2 | 2.2 °C |
| 7 Dec 2023, 09:28 | 5.8 | 5.8 °C |
| 23 Nov 2023, 11:01 | 9.5 | 9.5 °C |
| 9 Nov 2023, 08:31 | 8.3 | 8.3 °C |
| 20 Oct 2023, 11:33 | 13.5 | 13.5 °C |
pH
code 0061
7.16
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 7.16 | 7.16 |
| 14 Aug 2026, 10:06 | 7.12 | 7.12 |
| 22 Jul 2026, 11:52 | 7.35 | 7.35 |
| 26 Jun 2026, 09:27 | 7.51 | 7.51 |
| 8 May 2026, 12:29 | 7.86 | 7.86 |
| 10 Apr 2026, 10:28 | 7.96 | 7.96 |
| 6 Mar 2026, 10:43 | 8.08 | 8.08 |
| 2 Feb 2026, 11:20 | 7.68 | 7.68 |
| 2 Jan 2026, 10:57 | 7.88 | 7.88 |
| 2 Dec 2025, 13:44 | 7.76 | 7.76 |
| 6 Nov 2025, 10:05 | 7.46 | 7.46 |
| 3 Oct 2025, 10:58 | 7.38 | 7.38 |
| 8 Sep 2025, 12:39 | 7.44 | 7.44 |
| 22 Aug 2025, 11:29 | 7.37 | 7.37 |
| 29 Jul 2025, 12:22 | 7.4 | 7.4 |
| 4 Jun 2025, 09:16 | 7.75 | 7.75 |
| 7 May 2025, 12:02 | 8.12 | 8.12 |
| 11 Apr 2025, 11:35 | 8.17 | 8.17 |
| 13 Mar 2025, 09:20 | 7.94 | 7.94 |
| 10 Feb 2025, 13:19 | 7.81 | 7.81 |
| 27 Jan 2025, 11:23 | 7.74 | 7.74 |
| 2 Dec 2024, 11:58 | 7.87 | 7.87 |
| 18 Nov 2024, 12:38 | 7.9 | 7.9 |
| 16 Oct 2024, 12:42 | 7.53 | 7.53 |
| 19 Sep 2024, 09:00 | 7.63 | 7.63 |
| 2 Sep 2024, 12:34 | 7.51 | 7.51 |
| 29 Jul 2024, 09:42 | 7.67 | 7.67 |
| 24 Jun 2024, 09:32 | 7.76 | 7.76 |
| 24 May 2024, 08:52 | 7.59 | 7.59 |
| 15 Apr 2024, 09:07 | 8.09 | 8.09 |
| 21 Mar 2024, 11:48 | 7.86 | 7.86 |
| 22 Feb 2024, 09:15 | 8.71 | 8.71 |
| 16 Jan 2024, 09:44 | 7.72 | 7.72 |
| 7 Dec 2023, 09:28 | 7.75 | 7.75 |
| 23 Nov 2023, 11:01 | 7.66 | 7.66 |
| 9 Nov 2023, 08:31 | 7.54 | 7.54 |
| 20 Oct 2023, 11:33 | 7.51 | 7.51 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.044 mg/l
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 0.044 | 0.044 mg/l |
| 14 Aug 2026, 10:06 | 0.11 | 0.11 mg/l |
| 22 Jul 2026, 11:52 | 0.037 | 0.037 mg/l |
| 26 Jun 2026, 09:27 | 0.051 | 0.051 mg/l |
| 8 May 2026, 12:29 | 0.042 | 0.042 mg/l |
| 10 Apr 2026, 10:28 | 0.046 | 0.046 mg/l |
| 6 Mar 2026, 10:43 | 0.034 | 0.034 mg/l |
| 2 Feb 2026, 11:20 | 0.07 | 0.07 mg/l |
| 2 Jan 2026, 10:57 | 0.05 | 0.05 mg/l |
| 2 Dec 2025, 13:44 | 0.06 | 0.06 mg/l |
| 6 Nov 2025, 10:05 | 0.045 | 0.045 mg/l |
| 3 Oct 2025, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Sep 2025, 12:39 | 0.034 | 0.034 mg/l |
| 22 Aug 2025, 11:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jul 2025, 12:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2025, 09:16 | 0.079 | 0.079 mg/l |
| 7 May 2025, 12:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Apr 2025, 11:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2025, 09:20 | 0.066 | 0.066 mg/l |
| 10 Feb 2025, 13:19 | 0.086 | 0.086 mg/l |
| 27 Jan 2025, 11:23 | 0.087 | 0.087 mg/l |
| 2 Dec 2024, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2024, 12:38 | 0.088 | 0.088 mg/l |
| 16 Oct 2024, 12:42 | 0.032 | 0.032 mg/l |
| 19 Sep 2024, 09:00 | 0.032 | 0.032 mg/l |
| 2 Sep 2024, 12:34 | 0.05 | 0.05 mg/l |
| 29 Jul 2024, 09:42 | 0.046 | 0.046 mg/l |
| 24 Jun 2024, 09:32 | 0.064 | 0.064 mg/l |
| 24 May 2024, 08:52 | 0.21 | 0.21 mg/l |
| 15 Apr 2024, 09:07 | 0.061 | 0.061 mg/l |
| 21 Mar 2024, 11:48 | 0.058 | 0.058 mg/l |
| 22 Feb 2024, 09:15 | 0.057 | 0.057 mg/l |
| 16 Jan 2024, 09:44 | 0.091 | 0.091 mg/l |
| 7 Dec 2023, 09:28 | 0.073 | 0.073 mg/l |
| 23 Nov 2023, 11:01 | 0.038 | 0.038 mg/l |
| 9 Nov 2023, 08:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Oct 2023, 11:33 | 0.034 | 0.034 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
8.2 mg/l
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 8.2 | 8.2 mg/l |
| 14 Aug 2026, 10:06 | 13.9 | 13.9 mg/l |
| 22 Jul 2026, 11:52 | 12.9 | 12.9 mg/l |
| 26 Jun 2026, 09:27 | 9.93 | 9.93 mg/l |
| 8 May 2026, 12:29 | 11 | 11 mg/l |
| 10 Apr 2026, 10:28 | 11 | 11 mg/l |
| 6 Mar 2026, 10:43 | 5.18 | 5.18 mg/l |
| 2 Feb 2026, 11:20 | 4.95 | 4.95 mg/l |
| 2 Jan 2026, 10:57 | 9.47 | 9.47 mg/l |
| 2 Dec 2025, 13:44 | 11 | 11 mg/l |
| 6 Nov 2025, 10:05 | 8.35 | 8.35 mg/l |
| 3 Oct 2025, 10:58 | 15 | 15 mg/l |
| 8 Sep 2025, 12:39 | 6.88 | 6.88 mg/l |
| 22 Aug 2025, 11:29 | 16 | 16 mg/l |
| 29 Jul 2025, 12:22 | 12 | 12 mg/l |
| 4 Jun 2025, 09:16 | 12.9 | 12.9 mg/l |
| 7 May 2025, 12:02 | 9.97 | 9.97 mg/l |
| 11 Apr 2025, 11:35 | 14 | 14 mg/l |
| 13 Mar 2025, 09:20 | 8.57 | 8.57 mg/l |
| 10 Feb 2025, 13:19 | 4.64 | 4.64 mg/l |
| 27 Jan 2025, 11:23 | 3.96 | 3.96 mg/l |
| 2 Dec 2024, 11:58 | 6.07 | 6.07 mg/l |
| 18 Nov 2024, 12:38 | 8.25 | 8.25 mg/l |
| 16 Oct 2024, 12:42 | 2.88 | 2.88 mg/l |
| 19 Sep 2024, 09:00 | 14 | 14 mg/l |
| 2 Sep 2024, 12:34 | 11 | 11 mg/l |
| 29 Jul 2024, 09:42 | 9.87 | 9.87 mg/l |
| 24 Jun 2024, 09:32 | 9.95 | 9.95 mg/l |
| 24 May 2024, 08:52 | 6.59 | 6.59 mg/l |
| 15 Apr 2024, 09:07 | 7.46 | 7.46 mg/l |
| 21 Mar 2024, 11:48 | 5.28 | 5.28 mg/l |
| 22 Feb 2024, 09:15 | 2.37 | 2.37 mg/l |
| 16 Jan 2024, 09:44 | 4.57 | 4.57 mg/l |
| 7 Dec 2023, 09:28 | 5.88 | 5.88 mg/l |
| 23 Nov 2023, 11:01 | 5.36 | 5.36 mg/l |
| 9 Nov 2023, 08:31 | 4.67 | 4.67 mg/l |
| 20 Oct 2023, 11:33 | 7.07 | 7.07 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
1 mg/l
Sampled 4 Sep 2026, 27 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 1 | 1 mg/l |
| 22 Jul 2026, 11:52 | 0.96 | 0.96 mg/l |
| 26 Jun 2026, 09:27 | 0.71 | 0.71 mg/l |
| 8 May 2026, 12:29 | 0.56 | 0.56 mg/l |
| 10 Apr 2026, 10:28 | 0.32 | 0.32 mg/l |
| 6 Mar 2026, 10:43 | 0.16 | 0.16 mg/l |
| 2 Feb 2026, 11:20 | 0.094 | 0.094 mg/l |
| 2 Jan 2026, 10:57 | 0.21 | 0.21 mg/l |
| 2 Dec 2025, 13:44 | 0.2 | 0.2 mg/l |
| 6 Nov 2025, 10:05 | 0.69 | 0.69 mg/l |
| 3 Oct 2025, 10:58 | 0.8 | 0.8 mg/l |
| 8 Sep 2025, 12:39 | 0.73 | 0.73 mg/l |
| 22 Aug 2025, 11:29 | 1.2 | 1.2 mg/l |
| 29 Jul 2025, 12:22 | 0.88 | 0.88 mg/l |
| 4 Jun 2025, 09:16 | 0.66 | 0.66 mg/l |
| 7 May 2025, 12:02 | 0.41 | 0.41 mg/l |
| 11 Apr 2025, 11:35 | 0.4 | 0.4 mg/l |
| 13 Mar 2025, 09:20 | 0.22 | 0.22 mg/l |
| 10 Feb 2025, 13:19 | 0.15 | 0.15 mg/l |
| 27 Jan 2025, 11:23 | 0.14 | 0.14 mg/l |
| 2 Dec 2024, 11:58 | 0.11 | 0.11 mg/l |
| 18 Nov 2024, 12:38 | 0.25 | 0.25 mg/l |
| 16 Oct 2024, 12:42 | 0.086 | 0.086 mg/l |
| 19 Sep 2024, 09:00 | 0.61 | 0.61 mg/l |
| 2 Sep 2024, 12:34 | 0.54 | 0.54 mg/l |
| 29 Jul 2024, 09:42 | 0.75 | 0.75 mg/l |
| 24 Jun 2024, 09:32 | 0.45 | 0.45 mg/l |
| 24 May 2024, 08:52 | 0.19 | 0.19 mg/l |
| 15 Apr 2024, 09:07 | 0.23 | 0.23 mg/l |
| 21 Mar 2024, 11:48 | 0.17 | 0.17 mg/l |
| 22 Feb 2024, 09:15 | 0.057 | 0.057 mg/l |
| 16 Jan 2024, 09:44 | 0.085 | 0.085 mg/l |
| 7 Dec 2023, 09:28 | 0.14 | 0.14 mg/l |
| 23 Nov 2023, 11:01 | 0.16 | 0.16 mg/l |
| 9 Nov 2023, 08:31 | 0.1 | 0.1 mg/l |
| 20 Oct 2023, 11:33 | 0.22 | 0.22 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
805 µS/cm
Sampled 4 Sep 2026, 27 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 09:41 | 805 | 805 µS/cm |
| 14 Aug 2026, 10:06 | 1035 | 1035 µS/cm |
| 22 Jul 2026, 11:52 | 997 | 997 µS/cm |
| 26 Jun 2026, 09:27 | 896 | 896 µS/cm |
| 8 May 2026, 12:29 | 851 | 851 µS/cm |
| 10 Apr 2026, 10:28 | 805 | 805 µS/cm |
| 6 Mar 2026, 10:43 | 633 | 633 µS/cm |
| 2 Feb 2026, 11:20 | 587 | 587 µS/cm |
| 2 Jan 2026, 10:57 | 739 | 739 µS/cm |
| 2 Dec 2025, 13:44 | 728 | 728 µS/cm |
| 6 Nov 2025, 10:05 | 882 | 882 µS/cm |
| 3 Oct 2025, 10:58 | 967 | 967 µS/cm |
| 8 Sep 2025, 12:39 | 744 | 744 µS/cm |
| 22 Aug 2025, 11:29 | 1044 | 1044 µS/cm |
| 29 Jul 2025, 12:22 | 878 | 878 µS/cm |
| 4 Jun 2025, 09:16 | 911 | 911 µS/cm |
| 7 May 2025, 12:02 | 881 | 881 µS/cm |
| 11 Apr 2025, 11:35 | 850 | 850 µS/cm |
| 13 Mar 2025, 09:20 | 802 | 802 µS/cm |
| 10 Feb 2025, 13:19 | 687 | 687 µS/cm |
| 27 Jan 2025, 11:23 | 537 | 537 µS/cm |
| 2 Dec 2024, 11:58 | 647 | 647 µS/cm |
| 18 Nov 2024, 12:38 | 802 | 802 µS/cm |
| 16 Oct 2024, 12:42 | 593 | 593 µS/cm |
| 19 Sep 2024, 09:00 | 932 | 932 µS/cm |
| 2 Sep 2024, 12:34 | 883 | 883 µS/cm |
| 29 Jul 2024, 09:42 | 779 | 779 µS/cm |
| 24 Jun 2024, 09:32 | 866 | 866 µS/cm |
| 24 May 2024, 08:52 | 591 | 591 µS/cm |
| 15 Apr 2024, 09:07 | 764 | 764 µS/cm |
| 21 Mar 2024, 11:48 | 706 | 706 µS/cm |
| 22 Feb 2024, 09:15 | 472 | 472 µS/cm |
| 16 Jan 2024, 09:44 | 602 | 602 µS/cm |
| 7 Dec 2023, 09:28 | 644 | 644 µS/cm |
| 23 Nov 2023, 11:01 | 704 | 704 µS/cm |
| 9 Nov 2023, 08:31 | 618 | 618 µS/cm |
| 20 Oct 2023, 11:33 | 594 | 594 µS/cm |
Everything measured here
76 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 76 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 37 | Oct 2023 – Sep 2026 | 39.5% 4 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 37 | Oct 2023 – Sep 2026 | 3.77 mg/l 4 Sep 2026 |
| Temperature of Water 0076 | River water | 37 | Oct 2023 – Sep 2026 | 17.5 °C 4 Sep 2026 |
| pH 0061 | River water | 37 | Oct 2023 – Sep 2026 | 7.16 4 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 37 | Oct 2023 – Sep 2026 | 0.044 mg/l 4 Sep 2026 |
| Nitrate as N 0117 | River water | 37 | Oct 2023 – Sep 2026 | 8.2 mg/l 4 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 36 | Oct 2023 – Sep 2026 | 1 mg/l 4 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 37 | Oct 2023 – Sep 2026 | 805 µS/cm 4 Sep 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 6 Mar 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 5 | Apr 2024 – Mar 2026 | below 0.004 µg/l 6 Mar 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 6 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Mar 2026 – Mar 2026 | 0.0029 µg/l 6 Mar 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 5 | Apr 2024 – Mar 2026 | 0.0017 µg/l 6 Mar 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 6 Mar 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 6 Mar 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 6 Mar 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 6 Mar 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 6 Mar 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 37 | Oct 2023 – Sep 2026 | 170 mg/l 4 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 37 | Oct 2023 – Sep 2026 | 0.00021 mg/l 4 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 30 | Oct 2023 – Mar 2026 | 1.5 mg/l 6 Mar 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 5 | Apr 2024 – Mar 2026 | below 0.002 µg/l 6 Mar 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 5 | Apr 2024 – Mar 2026 | below 0.002 µg/l 6 Mar 2026 |
| Nitrite as N 0118 | River water | 37 | Oct 2023 – Sep 2026 | 0.1 mg/l 4 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 37 | Oct 2023 – Sep 2026 | 8.3 mg/l 4 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 5 | Apr 2024 – Mar 2026 | 0.0035 µg/l 6 Mar 2026 |
| Perfluorobutanoic acid 2995 | River water | 5 | Apr 2024 – Mar 2026 | 0.0047 µg/l 6 Mar 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 5 | Apr 2024 – Mar 2026 | 0.0013 µg/l 6 Mar 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| Perfluorodecanoic acid 8892 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 5 | Apr 2024 – Mar 2026 | below 0.005 µg/l 6 Mar 2026 |
| Perfluorododecanoic acid 8894 | River water | 5 | Apr 2024 – Mar 2026 | below 0.002 µg/l 6 Mar 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 5 | Apr 2024 – Mar 2026 | 0.00054 µg/l 6 Mar 2026 |
| Perfluoroheptanoic acid 8889 | River water | 5 | Apr 2024 – Mar 2026 | 0.0026 µg/l 6 Mar 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 5 | Apr 2024 – Mar 2026 | 0.0061 µg/l 6 Mar 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 5 | Apr 2024 – Mar 2026 | 0.0028 µg/l 6 Mar 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 5 | Apr 2024 – Mar 2026 | 0.015 µg/l 6 Mar 2026 |
| Perfluorohexanoic acid 8888 | River water | 5 | Apr 2024 – Mar 2026 | 0.0059 µg/l 6 Mar 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 5 | Apr 2024 – Mar 2026 | below 0.0005 µg/l 6 Mar 2026 |
| Perfluorononanoic acid 8891 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 5 | Apr 2024 – Mar 2026 | below 0.002 µg/l 6 Mar 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 5 | Apr 2024 – Mar 2026 | 0.012 µg/l 6 Mar 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 5 | Apr 2024 – Mar 2026 | 0.027 µg/l 6 Mar 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Mar 2026 – Mar 2026 | 0.038 µg/l 6 Mar 2026 |
| Perfluorooctanoic acid 8890 | River water | 5 | Apr 2024 – Mar 2026 | 0.0049 µg/l 6 Mar 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 5 | Apr 2024 – Mar 2026 | 0.00094 µg/l 6 Mar 2026 |
| Perfluoropentanoic acid 8887 | River water | 5 | Apr 2024 – Mar 2026 | 0.0076 µg/l 6 Mar 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 5 | Apr 2024 – Mar 2026 | below 0.006 µg/l 6 Mar 2026 |
| Perfluorotridecanoic acid 2955 | River water | 5 | Apr 2024 – Mar 2026 | below 0.002 µg/l 6 Mar 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 5 | Apr 2024 – Mar 2026 | below 0.004 µg/l 6 Mar 2026 |
| Perfluoroundecanoic acid 8893 | River water | 5 | Apr 2024 – Mar 2026 | below 0.001 µg/l 6 Mar 2026 |
| Phosphorus, Total as P 0348 | River water | 9 | Apr 2025 – Mar 2026 | 0.19 mg/l 6 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.