River Severn (Lower) Haw Bridge
EA name: R SEVERN (LOWER) HAW BRIDGE (also listed as “RIVER SEVERN (LOWER) HAW BRIDGE”)
Environment Agency sampling point MD-00025085 · 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
- 18 Sep 2026, 09:5613 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 32 since 10 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 22 Sep 2026
- Where
- National Grid 384550, 227850As published, to the nearest 10 m. Open in a map
- River, by its own name
- Severn
- River, by the map
- Afon HafrenPlaced on the river its name gives, 29 m from the line.
- Next gauge downstream
- Ashleworth On the River Severn · 5.4 km along the riverBeside Haw Bridge: too close to say above or below.
- Nearest gauge upstream
- Deerhurst On the River Severn · 3.5 km along the riverDeerhurst Flood Plain Level On the River Severn · 3.5 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (27 samples)
Monitoring (national agency policy) (5 samples)
Results here were completed a median of 9 days after the sample was taken (4 to 74 days, 13 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.5%
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 93.5 | 93.5% |
| 18 Aug 2026, 10:00 | 86.9 | 86.9% |
| 7 Jul 2026, 13:20 | 90.6 | 90.6% |
| 10 Jun 2026, 12:38 | 90.3 | 90.3% |
| 7 May 2026, 11:32 | 89.1 | 89.1% |
| 14 Apr 2026, 13:23 | 99.4 | 99.4% |
| 17 Mar 2026, 10:00 | 96.1 | 96.1% |
| 27 Feb 2026, 11:41 | 97.9 | 97.9% |
| 7 Jan 2026, 12:10 | 100.3 | 100.3% |
| 16 Dec 2025, 14:21 | 95.3 | 95.3% |
| 11 Nov 2025, 14:49 | 96.2 | 96.2% |
| 10 Oct 2025, 13:33 | 93.4 | 93.4% |
| 9 Sep 2025, 11:24 | 89.5 | 89.5% |
| 28 Jul 2025, 09:15 | 81.5 | 81.5% |
| 27 Jun 2025, 14:20 | 84.9 | 84.9% |
| 1 May 2025, 09:36 | 98.4 | 98.4% |
| 3 Apr 2025, 09:31 | 109.2 | 109.2% |
| 4 Mar 2025, 14:13 | 103.9 | 103.9% |
| 12 Feb 2025, 13:52 | 100.9 | 100.9% |
| 27 Jan 2025, 09:35 | 98.2 | 98.2% |
| 4 Dec 2024, 14:05 | 91.2 | 91.2% |
| 14 Oct 2024, 13:08 | 91.9 | 91.9% |
| 16 Sep 2024, 10:22 | 93 | 93% |
| 21 Aug 2024, 14:04 | 86.2 | 86.2% |
| 19 Jun 2024, 14:16 | 96.4 | 96.4% |
| 13 Mar 2024, 10:38 | 94.8 | 94.8% |
| 4 Mar 2024, 09:56 | 94.3 | 94.3% |
| 8 Feb 2024, 09:03 | 96 | 96% |
| 23 Jan 2024, 09:17 | 93.9 | 93.9% |
| 13 Dec 2023, 12:26 | 87.6 | 87.6% |
| 10 Oct 2023, 10:43 | 95.2 | 95.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.38 mg/l
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 9.38 | 9.38 mg/l |
| 18 Aug 2026, 10:00 | 7.64 | 7.64 mg/l |
| 7 Jul 2026, 13:20 | 7.75 | 7.75 mg/l |
| 10 Jun 2026, 12:38 | 8.72 | 8.72 mg/l |
| 7 May 2026, 11:32 | 9.1 | 9.1 mg/l |
| 14 Apr 2026, 13:23 | 10.8 | 10.8 mg/l |
| 17 Mar 2026, 10:00 | 11.1 | 11.1 mg/l |
| 27 Feb 2026, 11:41 | 11.1 | 11.1 mg/l |
| 7 Jan 2026, 12:10 | 13.4 | 13.4 mg/l |
| 16 Dec 2025, 14:21 | 11.1 | 11.1 mg/l |
| 11 Nov 2025, 14:49 | 10.4 | 10.4 mg/l |
| 10 Oct 2025, 13:33 | 9.73 | 9.73 mg/l |
| 9 Sep 2025, 11:24 | 8.61 | 8.61 mg/l |
| 28 Jul 2025, 09:15 | 7.48 | 7.48 mg/l |
| 27 Jun 2025, 14:20 | 7.49 | 7.49 mg/l |
| 1 May 2025, 09:36 | 9.71 | 9.71 mg/l |
| 3 Apr 2025, 09:31 | 12.1 | 12.1 mg/l |
| 4 Mar 2025, 14:13 | 12.5 | 12.5 mg/l |
| 12 Feb 2025, 13:52 | 12.4 | 12.4 mg/l |
| 27 Jan 2025, 09:35 | 12.5 | 12.5 mg/l |
| 4 Dec 2024, 14:05 | 10.6 | 10.6 mg/l |
| 14 Oct 2024, 13:08 | 10.2 | 10.2 mg/l |
| 16 Sep 2024, 10:22 | 9.62 | 9.62 mg/l |
| 21 Aug 2024, 14:04 | 8.14 | 8.14 mg/l |
| 19 Jun 2024, 14:16 | 9.33 | 9.33 mg/l |
| 13 Mar 2024, 10:38 | 10.9 | 10.9 mg/l |
| 4 Mar 2024, 09:56 | 11.5 | 11.5 mg/l |
| 8 Feb 2024, 09:03 | 11.2 | 11.2 mg/l |
| 23 Jan 2024, 09:17 | 11.6 | 11.6 mg/l |
| 13 Dec 2023, 12:26 | 10.4 | 10.4 mg/l |
| 10 Oct 2023, 10:43 | 9.62 | 9.62 mg/l |
Water temperature
code 0076 · °C
15.1 °C
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 15.1 | 15.1 °C |
| 18 Aug 2026, 10:00 | 21.6 | 21.6 °C |
| 7 Jul 2026, 13:20 | 23 | 23 °C |
| 10 Jun 2026, 12:38 | 16.9 | 16.9 °C |
| 7 May 2026, 11:32 | 14.3 | 14.3 °C |
| 14 Apr 2026, 13:23 | 11.5 | 11.5 °C |
| 17 Mar 2026, 10:00 | 8.9 | 8.9 °C |
| 27 Feb 2026, 11:41 | 9.7 | 9.7 °C |
| 7 Jan 2026, 12:10 | 3.1 | 3.1 °C |
| 16 Dec 2025, 14:21 | 8.8 | 8.8 °C |
| 11 Nov 2025, 14:49 | 11.6 | 11.6 °C |
| 10 Oct 2025, 13:33 | 13.4 | 13.4 °C |
| 9 Sep 2025, 11:24 | 17.1 | 17.1 °C |
| 28 Jul 2025, 09:15 | 19.4 | 19.4 °C |
| 27 Jun 2025, 14:20 | 21.4 | 21.4 °C |
| 1 May 2025, 09:36 | 15.9 | 15.9 °C |
| 3 Apr 2025, 09:31 | 10.7 | 10.7 °C |
| 4 Mar 2025, 14:13 | 7.3 | 7.3 °C |
| 12 Feb 2025, 13:52 | 6.3 | 6.3 °C |
| 27 Jan 2025, 09:35 | 5 | 5 °C |
| 4 Dec 2024, 14:05 | 8.7 | 8.7 °C |
| 14 Oct 2024, 13:08 | 10.6 | 10.6 °C |
| 16 Sep 2024, 10:22 | 13.7 | 13.7 °C |
| 21 Aug 2024, 14:04 | 18 | 18 °C |
| 19 Jun 2024, 14:16 | 16.8 | 16.8 °C |
| 13 Mar 2024, 10:38 | 9.1 | 9.1 °C |
| 4 Mar 2024, 09:56 | 6.7 | 6.7 °C |
| 8 Feb 2024, 09:03 | 8.5 | 8.5 °C |
| 23 Jan 2024, 09:17 | 6.1 | 6.1 °C |
| 13 Dec 2023, 12:26 | 7.8 | 7.8 °C |
| 10 Oct 2023, 10:43 | 14.8 | 14.8 °C |
pH
code 0061
7.48
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 7.48 | 7.48 |
| 18 Aug 2026, 10:00 | 7.72 | 7.72 |
| 7 Jul 2026, 13:20 | 8.01 | 8.01 |
| 10 Jun 2026, 12:38 | 7.93 | 7.93 |
| 7 May 2026, 11:32 | 7.94 | 7.94 |
| 14 Apr 2026, 13:23 | 8.2 | 8.2 |
| 17 Mar 2026, 10:00 | 7.94 | 7.94 |
| 27 Feb 2026, 11:41 | 8.04 | 8.04 |
| 7 Jan 2026, 12:10 | 7.83 | 7.83 |
| 16 Dec 2025, 14:21 | 7.95 | 7.95 |
| 11 Nov 2025, 14:49 | 7.83 | 7.83 |
| 10 Oct 2025, 13:33 | 8.03 | 8.03 |
| 9 Sep 2025, 11:24 | 7.9 | 7.9 |
| 28 Jul 2025, 09:15 | 7.62 | 7.62 |
| 27 Jun 2025, 14:20 | 7.83 | 7.83 |
| 1 May 2025, 09:36 | 8.08 | 8.08 |
| 3 Apr 2025, 09:31 | 8.13 | 8.13 |
| 4 Mar 2025, 14:13 | 8.1 | 8.1 |
| 12 Feb 2025, 13:52 | 8.05 | 8.05 |
| 27 Jan 2025, 09:35 | 7.75 | 7.75 |
| 4 Dec 2024, 14:05 | 7.84 | 7.84 |
| 14 Oct 2024, 13:08 | 7.84 | 7.84 |
| 16 Sep 2024, 10:22 | 7.86 | 7.86 |
| 21 Aug 2024, 14:04 | 7.85 | 7.85 |
| 19 Jun 2024, 14:16 | 8.15 | 8.15 |
| 13 Mar 2024, 10:38 | 7.88 | 7.88 |
| 4 Mar 2024, 09:56 | 7.6 | 7.6 |
| 8 Feb 2024, 09:03 | 7.52 | 7.52 |
| 23 Jan 2024, 09:17 | 7.83 | 7.83 |
| 13 Dec 2023, 12:26 | 7.74 | 7.74 |
| 10 Oct 2023, 10:43 | 7.52 | 7.52 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.035 mg/l
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 0.035 | 0.035 mg/l |
| 18 Aug 2026, 10:00 | 0.069 | 0.069 mg/l |
| 7 Jul 2026, 13:20 | 0.056 | 0.056 mg/l |
| 10 Jun 2026, 12:38 | 0.074 | 0.074 mg/l |
| 7 May 2026, 11:32 | 0.081 | 0.081 mg/l |
| 14 Apr 2026, 13:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Mar 2026, 10:00 | 0.043 | 0.043 mg/l |
| 27 Feb 2026, 11:41 | 0.063 | 0.063 mg/l |
| 7 Jan 2026, 12:10 | 0.066 | 0.066 mg/l |
| 16 Dec 2025, 14:21 | 0.071 | 0.071 mg/l |
| 11 Nov 2025, 14:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Oct 2025, 13:33 | 0.034 | 0.034 mg/l |
| 9 Sep 2025, 11:24 | 0.11 | 0.11 mg/l |
| 14 Aug 2025, 13:05 | 0.057 | 0.057 mg/l |
| 28 Jul 2025, 09:15 | 0.064 | 0.064 mg/l |
| 27 Jun 2025, 14:20 | 0.076 | 0.076 mg/l |
| 1 May 2025, 09:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2025, 14:13 | 0.059 | 0.059 mg/l |
| 12 Feb 2025, 13:52 | 0.076 | 0.076 mg/l |
| 27 Jan 2025, 09:35 | 0.15 | 0.15 mg/l |
| 4 Dec 2024, 14:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Oct 2024, 13:08 | 0.046 | 0.046 mg/l |
| 16 Sep 2024, 10:22 | 0.047 | 0.047 mg/l |
| 21 Aug 2024, 14:04 | 0.065 | 0.065 mg/l |
| 19 Jun 2024, 14:16 | 0.057 | 0.057 mg/l |
| 13 Mar 2024, 10:38 | 0.16 | 0.16 mg/l |
| 4 Mar 2024, 09:56 | 0.12 | 0.12 mg/l |
| 8 Feb 2024, 09:03 | 0.098 | 0.098 mg/l |
| 23 Jan 2024, 09:17 | 0.2 | 0.2 mg/l |
| 13 Dec 2023, 12:26 | 0.082 | 0.082 mg/l |
| 10 Oct 2023, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.88 mg/l
Sampled 18 Sep 2026, 13 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 7.88 | 7.88 mg/l |
| 18 Aug 2026, 10:00 | 7.58 | 7.58 mg/l |
| 7 Jul 2026, 13:20 | 7.08 | 7.08 mg/l |
| 10 Jun 2026, 12:38 | 6.76 | 6.76 mg/l |
| 7 May 2026, 11:32 | 6.86 | 6.86 mg/l |
| 14 Apr 2026, 13:23 | 6.28 | 6.28 mg/l |
| 17 Mar 2026, 10:00 | 3.87 | 3.87 mg/l |
| 27 Feb 2026, 11:41 | 4.17 | 4.17 mg/l |
| 7 Jan 2026, 12:10 | 6.46 | 6.46 mg/l |
| 16 Dec 2025, 14:21 | 5.27 | 5.27 mg/l |
| 11 Nov 2025, 14:49 | 4.28 | 4.28 mg/l |
| 10 Oct 2025, 13:33 | 3.69 | 3.69 mg/l |
| 9 Sep 2025, 11:24 | 7.96 | 7.96 mg/l |
| 14 Aug 2025, 13:05 | 7.18 | 7.18 mg/l |
| 28 Jul 2025, 09:15 | 7.38 | 7.38 mg/l |
| 27 Jun 2025, 14:20 | 6.97 | 6.97 mg/l |
| 1 May 2025, 09:36 | 6.57 | 6.57 mg/l |
| 4 Mar 2025, 14:13 | 5.17 | 5.17 mg/l |
| 12 Feb 2025, 13:52 | 6.26 | 6.26 mg/l |
| 27 Jan 2025, 09:35 | 4.85 | 4.85 mg/l |
| 14 Oct 2024, 13:08 | 4.58 | 4.58 mg/l |
| 16 Sep 2024, 10:22 | 5.38 | 5.38 mg/l |
| 21 Aug 2024, 14:04 | 6.98 | 6.98 mg/l |
| 19 Jun 2024, 14:16 | 5.88 | 5.88 mg/l |
| 13 Mar 2024, 10:38 | 5.33 | 5.33 mg/l |
| 4 Mar 2024, 09:56 | 4.06 | 4.06 mg/l |
| 8 Feb 2024, 09:03 | 4.86 | 4.86 mg/l |
| 23 Jan 2024, 09:17 | 6.63 | 6.63 mg/l |
| 13 Dec 2023, 12:26 | 4.06 | 4.06 mg/l |
| 10 Oct 2023, 10:43 | 3.39 | 3.39 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.17 mg/l
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 0.17 | 0.17 mg/l |
| 18 Aug 2026, 10:00 | 0.2 | 0.2 mg/l |
| 7 Jul 2026, 13:20 | 0.17 | 0.17 mg/l |
| 10 Jun 2026, 12:38 | 0.17 | 0.17 mg/l |
| 7 May 2026, 11:32 | 0.091 | 0.091 mg/l |
| 14 Apr 2026, 13:23 | 0.084 | 0.084 mg/l |
| 17 Mar 2026, 10:00 | 0.095 | 0.095 mg/l |
| 27 Feb 2026, 11:41 | 0.089 | 0.089 mg/l |
| 7 Jan 2026, 12:10 | 0.66 | 0.66 mg/l |
| 16 Dec 2025, 14:21 | 0.087 | 0.087 mg/l |
| 11 Nov 2025, 14:49 | 0.12 | 0.12 mg/l |
| 10 Oct 2025, 13:33 | 0.13 | 0.13 mg/l |
| 9 Sep 2025, 11:24 | 0.25 | 0.25 mg/l |
| 14 Aug 2025, 13:05 | 0.28 | 0.28 mg/l |
| 28 Jul 2025, 09:15 | 0.28 | 0.28 mg/l |
| 27 Jun 2025, 14:20 | 0.26 | 0.26 mg/l |
| 1 May 2025, 09:36 | 0.11 | 0.11 mg/l |
| 4 Mar 2025, 14:13 | 0.093 | 0.093 mg/l |
| 12 Feb 2025, 13:52 | 0.11 | 0.11 mg/l |
| 27 Jan 2025, 09:35 | 0.14 | 0.14 mg/l |
| 4 Dec 2024, 14:05 | 0.097 | 0.097 mg/l |
| 14 Oct 2024, 13:08 | 0.14 | 0.14 mg/l |
| 16 Sep 2024, 10:22 | 0.2 | 0.2 mg/l |
| 21 Aug 2024, 14:04 | 0.28 | 0.28 mg/l |
| 19 Jun 2024, 14:16 | 0.18 | 0.18 mg/l |
| 13 Mar 2024, 10:38 | 0.13 | 0.13 mg/l |
| 4 Mar 2024, 09:56 | 0.11 | 0.11 mg/l |
| 8 Feb 2024, 09:03 | 0.14 | 0.14 mg/l |
| 23 Jan 2024, 09:17 | 0.15 | 0.15 mg/l |
| 13 Dec 2023, 12:26 | 0.1 | 0.1 mg/l |
| 10 Oct 2023, 10:43 | 0.14 | 0.14 mg/l |
Turbidity
code 6396 · NTU
47 NTU
Sampled 13 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:38 | 47 | 47 NTU |
| 4 Mar 2024, 09:56 | 62 | 62 NTU |
| 8 Feb 2024, 09:03 | 120 | 120 NTU |
| 23 Jan 2024, 09:17 | 110 | 110 NTU |
| 13 Dec 2023, 12:26 | 43 | 43 NTU |
| 10 Oct 2023, 10:43 | 8.2 | 8.2 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
701 µS/cm
Sampled 18 Sep 2026, 13 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 09:56 | 701 | 701 µS/cm |
| 18 Aug 2026, 10:00 | 840 | 840 µS/cm |
| 7 Jul 2026, 13:20 | 825 | 825 µS/cm |
| 10 Jun 2026, 12:38 | 710 | 710 µS/cm |
| 7 May 2026, 11:32 | 760 | 760 µS/cm |
| 14 Apr 2026, 13:23 | 648 | 648 µS/cm |
| 17 Mar 2026, 10:00 | 406 | 406 µS/cm |
| 27 Feb 2026, 11:41 | 425 | 425 µS/cm |
| 7 Jan 2026, 12:10 | 600 | 600 µS/cm |
| 16 Dec 2025, 14:21 | 395 | 395 µS/cm |
| 11 Nov 2025, 14:49 | 407 | 407 µS/cm |
| 10 Oct 2025, 13:33 | 387 | 387 µS/cm |
| 9 Sep 2025, 11:24 | 755 | 755 µS/cm |
| 28 Jul 2025, 09:15 | 759 | 759 µS/cm |
| 27 Jun 2025, 14:20 | 753 | 753 µS/cm |
| 1 May 2025, 09:36 | 734 | 734 µS/cm |
| 3 Apr 2025, 09:31 | 766 | 766 µS/cm |
| 4 Mar 2025, 14:13 | 538 | 538 µS/cm |
| 12 Feb 2025, 13:52 | 628 | 628 µS/cm |
| 27 Jan 2025, 09:35 | 498 | 498 µS/cm |
| 4 Dec 2024, 14:05 | 407 | 407 µS/cm |
| 14 Oct 2024, 13:08 | 485 | 485 µS/cm |
| 16 Sep 2024, 10:22 | 543 | 543 µS/cm |
| 21 Aug 2024, 14:04 | 761 | 761 µS/cm |
| 19 Jun 2024, 14:16 | 631 | 631 µS/cm |
| 13 Mar 2024, 10:38 | 551 | 551 µS/cm |
| 4 Mar 2024, 09:56 | 447 | 447 µS/cm |
| 8 Feb 2024, 09:03 | 466 | 466 µS/cm |
| 23 Jan 2024, 09:17 | 622 | 622 µS/cm |
| 13 Dec 2023, 12:26 | 351 | 351 µS/cm |
| 10 Oct 2023, 10:43 | 346 | 346 µS/cm |
Everything measured here
79 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 79 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – Sep 2026 | 93.5% 18 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – Sep 2026 | 9.38 mg/l 18 Sep 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – Sep 2026 | 15.1 °C 18 Sep 2026 |
| pH 0061 | River water | 31 | Oct 2023 – Sep 2026 | 7.48 18 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Sep 2026 | 0.035 mg/l 18 Sep 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Sep 2026 | 7.88 mg/l 18 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – Sep 2026 | 0.17 mg/l 18 Sep 2026 |
| Turbidity 6396 | River water | 6 | Oct 2023 – Mar 2024 | 47 NTU 13 Mar 2024 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – Sep 2026 | 701 µS/cm 18 Sep 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 2 | Apr 2026 – Jul 2026 | below 0.002 µg/l 7 Jul 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Apr 2026 – Jul 2026 | below 0.004 µg/l 7 Jul 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 2 | Apr 2026 – Jul 2026 | below 0.004 µg/l 7 Jul 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 2 | Apr 2026 – Jul 2026 | 0.003 µg/l 7 Jul 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 2 | Apr 2026 – Jul 2026 | below 0.01 µg/l 7 Jul 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 2 | Apr 2026 – Jul 2026 | below 0.004 µg/l 7 Jul 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 2 | Apr 2026 – Jul 2026 | below 0.01 µg/l 7 Jul 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 2 | Apr 2026 – Jul 2026 | below 0.004 µg/l 7 Jul 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 2 | Apr 2026 – Jul 2026 | below 0.01 µg/l 7 Jul 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Sep 2026 | 140 mg/l 18 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Oct 2023 – Sep 2026 | 0.00028 mg/l 18 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 1.5 mg/l 7 May 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 6 | Oct 2023 – Mar 2024 | 4.8 µg/l 13 Mar 2024 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Apr 2026 – Jul 2026 | below 0.002 µg/l 7 Jul 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Apr 2026 – Jul 2026 | below 0.002 µg/l 7 Jul 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Sep 2026 | 0.018 mg/l 18 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Sep 2026 | 7.9 mg/l 18 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Apr 2026 – Jul 2026 | 0.0026 µg/l 7 Jul 2026 |
| Perfluorobutanoic acid 2995 | River water | 2 | Apr 2026 – Jul 2026 | 0.0025 µg/l 7 Jul 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| Perfluorodecanoic acid 8892 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Apr 2026 – Jul 2026 | below 0.005 µg/l 7 Jul 2026 |
| Perfluorododecanoic acid 8894 | River water | 2 | Apr 2026 – Jul 2026 | below 0.002 µg/l 7 Jul 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Apr 2026 – Jul 2026 | 0.0013 µg/l 7 Jul 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Apr 2026 – Jul 2026 | 0.0012 µg/l 7 Jul 2026 |
| Perfluorohexanoic acid 8888 | River water | 2 | Apr 2026 – Jul 2026 | 0.003 µg/l 7 Jul 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluorononanoic acid 8891 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Apr 2026 – Jul 2026 | below 0.002 µg/l 7 Jul 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Jul 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Apr 2026 – Jul 2026 | 0.00097 µg/l 7 Jul 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Apr 2026 – Jul 2026 | 0.0013 µg/l 7 Jul 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 2 | Apr 2026 – Jul 2026 | 0.0023 µg/l 7 Jul 2026 |
| Perfluorooctanoic acid 8890 | River water | 2 | Apr 2026 – Jul 2026 | 0.0016 µg/l 7 Jul 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Apr 2026 – Jul 2026 | below 0.0005 µg/l 7 Jul 2026 |
| Perfluoropentanoic acid 8887 | River water | 2 | Apr 2026 – Jul 2026 | 0.0041 µg/l 7 Jul 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Apr 2026 – Jul 2026 | below 0.006 µg/l 7 Jul 2026 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Apr 2026 – Jul 2026 | below 0.002 µg/l 7 Jul 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Apr 2026 – Jul 2026 | below 0.004 µg/l 7 Jul 2026 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Apr 2026 – Jul 2026 | below 0.001 µg/l 7 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Oct 2023 – Mar 2024 | 64 mg/l 13 Mar 2024 |
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.