River Severn Worcester Bridge
EA name: R SEVERN WORCESTER BRIDGE (also listed as “RIVER SEVERN - WORCESTER BRIDGE”)
Environment Agency sampling point MD-00030850 · 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
- 27 May 2026, 11:084 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 28 since 9 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 384650, 254750As 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, 26 m from the line.
- Next gauge downstream
- Diglis On the River Severn · 1.4 km along the river
- Nearest gauge upstream
- Worcester (Barbourne) On the River Severn · 2.2 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (14 samples)
Monitoring (national agency policy) (14 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
81.4%
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 81.4 | 81.4% |
| 13 Apr 2026, 12:54 | 99.6 | 99.6% |
| 6 Mar 2026, 13:22 | 97 | 97% |
| 10 Feb 2026, 11:40 | 92.3 | 92.3% |
| 21 Jan 2026, 10:59 | 98.6 | 98.6% |
| 15 Dec 2025, 10:26 | 94.4 | 94.4% |
| 22 Oct 2025, 13:10 | 92.6 | 92.6% |
| 15 Sep 2025, 11:51 | 93.9 | 93.9% |
| 15 Aug 2025, 09:22 | 85.6 | 85.6% |
| 16 Jul 2025, 09:36 | 79.9 | 79.9% |
| 18 Jun 2025, 10:29 | 88.1 | 88.1% |
| 28 May 2025, 12:30 | 88.3 | 88.3% |
| 7 Apr 2025, 12:18 | 107.4 | 107.4% |
| 11 Mar 2025, 14:07 | 96.7 | 96.7% |
| 20 Feb 2025, 09:59 | 100.1 | 100.1% |
| 31 Jan 2025, 09:46 | 102.2 | 102.2% |
| 9 Dec 2024, 14:03 | 95.6 | 95.6% |
| 18 Nov 2024, 11:11 | 95.8 | 95.8% |
| 16 Oct 2024, 13:15 | 98.2 | 98.2% |
| 16 Sep 2024, 10:17 | 96.5 | 96.5% |
| 17 Jun 2024, 11:57 | 102.8 | 102.8% |
| 7 Mar 2024, 10:06 | 97.8 | 97.8% |
| 7 Feb 2024, 09:10 | 91.6 | 91.6% |
| 25 Jan 2024, 15:29 | 96.4 | 96.4% |
| 19 Dec 2023, 13:10 | 97.3 | 97.3% |
| 10 Nov 2023, 13:50 | 98.6 | 98.6% |
| 9 Oct 2023, 09:30 | 94.6 | 94.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.24 mg/l
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 7.24 | 7.24 mg/l |
| 13 Apr 2026, 12:54 | 10.9 | 10.9 mg/l |
| 6 Mar 2026, 13:22 | 11.2 | 11.2 mg/l |
| 10 Feb 2026, 11:40 | 11 | 11 mg/l |
| 21 Jan 2026, 10:59 | 12 | 12 mg/l |
| 15 Dec 2025, 10:26 | 11.1 | 11.1 mg/l |
| 22 Oct 2025, 13:10 | 9.69 | 9.69 mg/l |
| 15 Sep 2025, 11:51 | 9.53 | 9.53 mg/l |
| 15 Aug 2025, 09:22 | 7.7 | 7.7 mg/l |
| 16 Jul 2025, 09:36 | 7.19 | 7.19 mg/l |
| 18 Jun 2025, 10:29 | 8.2 | 8.2 mg/l |
| 28 May 2025, 12:30 | 8.55 | 8.55 mg/l |
| 7 Apr 2025, 12:18 | 11.3 | 11.3 mg/l |
| 11 Mar 2025, 14:07 | 11.1 | 11.1 mg/l |
| 20 Feb 2025, 09:59 | 12.2 | 12.2 mg/l |
| 31 Jan 2025, 09:46 | 12.8 | 12.8 mg/l |
| 9 Dec 2024, 14:03 | 11.6 | 11.6 mg/l |
| 18 Nov 2024, 11:11 | 11.1 | 11.1 mg/l |
| 16 Oct 2024, 13:15 | 10.6 | 10.6 mg/l |
| 16 Sep 2024, 10:17 | 9.96 | 9.96 mg/l |
| 17 Jun 2024, 11:57 | 10.1 | 10.1 mg/l |
| 7 Mar 2024, 10:06 | 11.9 | 11.9 mg/l |
| 7 Feb 2024, 09:10 | 10.7 | 10.7 mg/l |
| 25 Jan 2024, 15:29 | 11.6 | 11.6 mg/l |
| 19 Dec 2023, 13:10 | 11.3 | 11.3 mg/l |
| 10 Nov 2023, 13:50 | 11.3 | 11.3 mg/l |
| 9 Oct 2023, 09:30 | 9.6 | 9.6 mg/l |
Water temperature
code 0076 · °C
21 °C
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 21 | 21 °C |
| 13 Apr 2026, 12:54 | 11.2 | 11.2 °C |
| 6 Mar 2026, 13:22 | 8.9 | 8.9 °C |
| 10 Feb 2026, 11:40 | 7.6 | 7.6 °C |
| 21 Jan 2026, 10:59 | 6.7 | 6.7 °C |
| 15 Dec 2025, 10:26 | 8.3 | 8.3 °C |
| 22 Oct 2025, 13:10 | 13.2 | 13.2 °C |
| 15 Sep 2025, 11:51 | 14.6 | 14.6 °C |
| 15 Aug 2025, 09:22 | 20.4 | 20.4 °C |
| 16 Jul 2025, 09:36 | 20.4 | 20.4 °C |
| 18 Jun 2025, 10:29 | 18.7 | 18.7 °C |
| 28 May 2025, 12:30 | 16.8 | 16.8 °C |
| 7 Apr 2025, 12:18 | 12.9 | 12.9 °C |
| 11 Mar 2025, 14:07 | 9.2 | 9.2 °C |
| 20 Feb 2025, 09:59 | 6.8 | 6.8 °C |
| 31 Jan 2025, 09:46 | 5.7 | 5.7 °C |
| 9 Dec 2024, 14:03 | 6.8 | 6.8 °C |
| 18 Nov 2024, 11:11 | 9 | 9 °C |
| 16 Oct 2024, 13:15 | 11.8 | 11.8 °C |
| 16 Sep 2024, 10:17 | 13.8 | 13.8 °C |
| 17 Jun 2024, 11:57 | 16.2 | 16.2 °C |
| 7 Mar 2024, 10:06 | 6.8 | 6.8 °C |
| 7 Feb 2024, 09:10 | 8.4 | 8.4 °C |
| 25 Jan 2024, 15:29 | 7.4 | 7.4 °C |
| 19 Dec 2023, 13:10 | 8.8 | 8.8 °C |
| 10 Nov 2023, 13:50 | 9.2 | 9.2 °C |
| 9 Oct 2023, 09:30 | 14.6 | 14.6 °C |
pH
code 0061
7.7
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 7.7 | 7.7 |
| 13 Apr 2026, 12:54 | 8.25 | 8.25 |
| 6 Mar 2026, 13:22 | 7.97 | 7.97 |
| 10 Feb 2026, 11:40 | 7.73 | 7.73 |
| 21 Jan 2026, 10:59 | 7.86 | 7.86 |
| 15 Dec 2025, 10:26 | 7.83 | 7.83 |
| 22 Oct 2025, 13:10 | 7.85 | 7.85 |
| 15 Sep 2025, 11:51 | 7.89 | 7.89 |
| 15 Aug 2025, 09:22 | 7.82 | 7.82 |
| 16 Jul 2025, 09:36 | 7.77 | 7.77 |
| 18 Jun 2025, 10:29 | 7.5 | 7.5 |
| 28 May 2025, 12:30 | 7.94 | 7.94 |
| 7 Apr 2025, 12:18 | 8.53 | 8.53 |
| 11 Mar 2025, 14:07 | 8.11 | 8.11 |
| 20 Feb 2025, 09:59 | 8.07 | 8.07 |
| 31 Jan 2025, 09:46 | 8 | 8 |
| 9 Dec 2024, 14:03 | 7.99 | 7.99 |
| 18 Nov 2024, 11:11 | 8.21 | 8.21 |
| 16 Oct 2024, 13:15 | 8.01 | 8.01 |
| 16 Sep 2024, 10:17 | 7.99 | 7.99 |
| 17 Jun 2024, 11:57 | 8.34 | 8.34 |
| 7 Mar 2024, 10:06 | 8.01 | 8.01 |
| 7 Feb 2024, 09:10 | 7.8 | 7.8 |
| 25 Jan 2024, 15:29 | 7.55 | 7.55 |
| 19 Dec 2023, 13:10 | 7.74 | 7.74 |
| 10 Nov 2023, 13:50 | 8.2 | 8.2 |
| 9 Oct 2023, 09:30 | 7.55 | 7.55 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.079 mg/l
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 0.079 | 0.079 mg/l |
| 13 Apr 2026, 12:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2026, 13:22 | 0.035 | 0.035 mg/l |
| 10 Feb 2026, 11:40 | 0.057 | 0.057 mg/l |
| 21 Jan 2026, 10:59 | 0.079 | 0.079 mg/l |
| 15 Dec 2025, 10:26 | 0.044 | 0.044 mg/l |
| 22 Oct 2025, 13:10 | 0.05 | 0.05 mg/l |
| 15 Sep 2025, 11:51 | 0.077 | 0.077 mg/l |
| 15 Aug 2025, 09:22 | 0.049 | 0.049 mg/l |
| 16 Jul 2025, 09:36 | 0.075 | 0.075 mg/l |
| 18 Jun 2025, 10:29 | 0.097 | 0.097 mg/l |
| 28 May 2025, 12:30 | 0.089 | 0.089 mg/l |
| 7 Apr 2025, 12:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Mar 2025, 14:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2025, 09:59 | 0.068 | 0.068 mg/l |
| 31 Jan 2025, 09:46 | 0.059 | 0.059 mg/l |
| 9 Dec 2024, 14:03 | 0.074 | 0.074 mg/l |
| 18 Nov 2024, 11:11 | 0.044 | 0.044 mg/l |
| 16 Oct 2024, 13:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2024, 10:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2024, 10:06 | 0.061 | 0.061 mg/l |
| 7 Feb 2024, 09:10 | 0.13 | 0.13 mg/l |
| 25 Jan 2024, 15:29 | 0.2 | 0.2 mg/l |
| 19 Dec 2023, 13:10 | 0.052 | 0.052 mg/l |
| 10 Nov 2023, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Oct 2023, 09:30 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.67 mg/l
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 5.67 | 5.67 mg/l |
| 13 Apr 2026, 12:54 | 6.29 | 6.29 mg/l |
| 6 Mar 2026, 13:22 | 4.68 | 4.68 mg/l |
| 10 Feb 2026, 11:40 | 3.87 | 3.87 mg/l |
| 21 Jan 2026, 10:59 | 4.86 | 4.86 mg/l |
| 15 Dec 2025, 10:26 | 3.78 | 3.78 mg/l |
| 22 Oct 2025, 13:10 | 4.88 | 4.88 mg/l |
| 15 Sep 2025, 11:51 | 4.79 | 4.79 mg/l |
| 15 Aug 2025, 09:22 | 6.19 | 6.19 mg/l |
| 16 Jul 2025, 09:36 | 6.38 | 6.38 mg/l |
| 18 Jun 2025, 10:29 | 2.88 | 2.88 mg/l |
| 28 May 2025, 12:30 | 7.45 | 7.45 mg/l |
| 7 Apr 2025, 12:18 | 7.68 | 7.68 mg/l |
| 11 Mar 2025, 14:07 | 5.78 | 5.78 mg/l |
| 20 Feb 2025, 09:59 | 6.45 | 6.45 mg/l |
| 31 Jan 2025, 09:46 | 3.37 | 3.37 mg/l |
| 9 Dec 2024, 14:03 | 2.77 | 2.77 mg/l |
| 18 Nov 2024, 11:11 | 7.07 | 7.07 mg/l |
| 16 Oct 2024, 13:15 | 4.59 | 4.59 mg/l |
| 16 Sep 2024, 10:17 | 4.39 | 4.39 mg/l |
| 17 Jun 2024, 11:57 | 6.48 | 6.48 mg/l |
| 7 Mar 2024, 10:06 | 4.87 | 4.87 mg/l |
| 7 Feb 2024, 09:10 | 4.27 | 4.27 mg/l |
| 25 Jan 2024, 15:29 | 3.16 | 3.16 mg/l |
| 19 Dec 2023, 13:10 | 4.46 | 4.46 mg/l |
| 10 Nov 2023, 13:50 | 3.38 | 3.38 mg/l |
| 9 Oct 2023, 09:30 | 2.3 | 2.3 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 27 May 2026, 4 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 0.11 | 0.11 mg/l |
| 13 Apr 2026, 12:54 | 0.085 | 0.085 mg/l |
| 6 Mar 2026, 13:22 | 0.075 | 0.075 mg/l |
| 10 Feb 2026, 11:40 | 0.081 | 0.081 mg/l |
| 21 Jan 2026, 10:59 | 0.09 | 0.09 mg/l |
| 15 Dec 2025, 10:26 | 0.063 | 0.063 mg/l |
| 22 Oct 2025, 13:10 | 0.13 | 0.13 mg/l |
| 15 Sep 2025, 11:51 | 0.14 | 0.14 mg/l |
| 15 Aug 2025, 09:22 | 0.14 | 0.14 mg/l |
| 16 Jul 2025, 09:36 | 0.23 | 0.23 mg/l |
| 18 Jun 2025, 10:29 | 0.11 | 0.11 mg/l |
| 28 May 2025, 12:30 | 0.15 | 0.15 mg/l |
| 7 Apr 2025, 12:18 | 0.062 | 0.062 mg/l |
| 11 Mar 2025, 14:07 | 0.078 | 0.078 mg/l |
| 20 Feb 2025, 09:59 | 0.091 | 0.091 mg/l |
| 31 Jan 2025, 09:46 | 0.072 | 0.072 mg/l |
| 9 Dec 2024, 14:03 | 0.14 | 0.14 mg/l |
| 18 Nov 2024, 11:11 | 0.14 | 0.14 mg/l |
| 16 Oct 2024, 13:15 | 0.11 | 0.11 mg/l |
| 16 Sep 2024, 10:17 | 0.14 | 0.14 mg/l |
| 17 Jun 2024, 11:57 | 0.16 | 0.16 mg/l |
| 7 Mar 2024, 10:06 | 0.1 | 0.1 mg/l |
| 7 Feb 2024, 09:10 | 0.099 | 0.099 mg/l |
| 19 Dec 2023, 13:10 | 0.098 | 0.098 mg/l |
| 10 Nov 2023, 13:50 | 0.072 | 0.072 mg/l |
| 9 Oct 2023, 09:30 | 0.087 | 0.087 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
625 µS/cm
Sampled 27 May 2026, 4 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:08 | 625 | 625 µS/cm |
| 13 Apr 2026, 12:54 | 593 | 593 µS/cm |
| 6 Mar 2026, 13:22 | 426 | 426 µS/cm |
| 10 Feb 2026, 11:40 | 280 | 280 µS/cm |
| 21 Jan 2026, 10:59 | 400 | 400 µS/cm |
| 15 Dec 2025, 10:26 | 277 | 277 µS/cm |
| 22 Oct 2025, 13:10 | 482 | 482 µS/cm |
| 15 Sep 2025, 11:51 | 578 | 578 µS/cm |
| 15 Aug 2025, 09:22 | 655 | 655 µS/cm |
| 16 Jul 2025, 09:36 | 686 | 686 µS/cm |
| 18 Jun 2025, 10:29 | 303 | 303 µS/cm |
| 28 May 2025, 12:30 | 889 | 889 µS/cm |
| 7 Apr 2025, 12:18 | 740 | 740 µS/cm |
| 11 Mar 2025, 14:07 | 551 | 551 µS/cm |
| 20 Feb 2025, 09:59 | 623 | 623 µS/cm |
| 31 Jan 2025, 09:46 | 334 | 334 µS/cm |
| 9 Dec 2024, 14:03 | 258 | 258 µS/cm |
| 18 Nov 2024, 11:11 | 647 | 647 µS/cm |
| 16 Oct 2024, 13:15 | 499 | 499 µS/cm |
| 16 Sep 2024, 10:17 | 473 | 473 µS/cm |
| 17 Jun 2024, 11:57 | 619 | 619 µS/cm |
| 7 Mar 2024, 10:06 | 469 | 469 µS/cm |
| 7 Feb 2024, 09:10 | 400 | 400 µS/cm |
| 25 Jan 2024, 15:29 | 267 | 267 µS/cm |
| 19 Dec 2023, 13:10 | 386 | 386 µS/cm |
| 10 Nov 2023, 13:50 | 291 | 291 µS/cm |
| 9 Oct 2023, 09:30 | 242 | 242 µS/cm |
Everything measured here
60 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 60 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 27 | Oct 2023 – May 2026 | 81.4% 27 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Oct 2023 – May 2026 | 7.24 mg/l 27 May 2026 |
| Temperature of Water 0076 | River water | 27 | Oct 2023 – May 2026 | 21 °C 27 May 2026 |
| pH 0061 | River water | 27 | Oct 2023 – May 2026 | 7.7 27 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – May 2026 | 0.079 mg/l 27 May 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – May 2026 | 5.67 mg/l 27 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 26 | Oct 2023 – May 2026 | 0.11 mg/l 27 May 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Oct 2023 – May 2026 | 625 µS/cm 27 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Apr 2024 – Mar 2025 | below 0.004 µg/l 11 Mar 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Apr 2024 – Mar 2025 | below 0.005 µg/l 11 Mar 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Oct 2023 – May 2026 | 130 mg/l 27 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Oct 2023 – May 2026 | 0.00164 mg/l 27 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 20 | Jun 2024 – May 2026 | below 1 mg/l 27 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – May 2026 | 0.03 mg/l 27 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – May 2026 | 5.7 mg/l 27 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Apr 2024 – Mar 2025 | 0.0014 µg/l 11 Mar 2025 |
| Perfluorobutanoic acid 2995 | River water | 2 | Apr 2024 – Mar 2025 | 0.0017 µg/l 11 Mar 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluorodecanoic acid 8892 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Apr 2024 – Mar 2025 | below 0.005 µg/l 11 Mar 2025 |
| Perfluorododecanoic acid 8894 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorohexanoic acid 8888 | River water | 2 | Apr 2024 – Mar 2025 | 0.001 µg/l 11 Mar 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorononanoic acid 8891 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorooctanoic acid 8890 | River water | 2 | Apr 2024 – Mar 2025 | 0.00084 µg/l 11 Mar 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoropentanoic acid 8887 | River water | 2 | Apr 2024 – Mar 2025 | 0.0012 µg/l 11 Mar 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Apr 2024 – Mar 2025 | below 0.006 µg/l 11 Mar 2025 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Apr 2024 – Mar 2025 | below 0.005 µg/l 11 Mar 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Apr 2024 – Mar 2025 | below 0.004 µg/l 11 Mar 2025 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
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.