River Severn at Apley Forge
EA name: R.SEVERN AT APLEY FORGE (also listed as “RIVER SEVERN AT APLEY FORGE”)
Environment Agency sampling point MD-00044720 · 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
- 7 May 2026, 11:445 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
- 30 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 Monitoring (national agency policy)
- Where
- National Grid 370674, 298325As published, to the nearest 1 m. Open in a map
- River, by its own name
- Severn
- River, by the map
- Afon HafrenPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Bridgnorth On the River Severn · 6.5 km along the river
- Nearest gauge upstream
- Buildwas On the River Severn · 11 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (15 samples)
Monitoring (national agency policy) (14 samples)
Unplanned reactive monitoring (pollution incidents) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.6%
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 101.6 | 101.6% |
| 5 Mar 2026, 15:23 | 90.1 | 90.1% |
| 11 Feb 2026, 10:14 | 94.8 | 94.8% |
| 29 Jan 2026, 11:39 | 93.9 | 93.9% |
| 18 Dec 2025, 11:58 | 94.8 | 94.8% |
| 6 Nov 2025, 12:32 | 93.2 | 93.2% |
| 16 Oct 2025, 11:09 | 98.5 | 98.5% |
| 5 Sep 2025, 11:37 | 95.5 | 95.5% |
| 21 Aug 2025, 13:27 | 101.9 | 101.9% |
| 14 Jul 2025, 10:12 | 92.7 | 92.7% |
| 13 Jun 2025, 10:04 | 95.4 | 95.4% |
| 28 May 2025, 15:07 | 100.5 | 100.5% |
| 23 Apr 2025, 11:35 | 100.5 | 100.5% |
| 18 Mar 2025, 11:20 | 101.4 | 101.4% |
| 14 Feb 2025, 10:29 | 97.6 | 97.6% |
| 30 Jan 2025, 10:23 | 96.2 | 96.2% |
| 4 Dec 2024, 11:30 | 93.1 | 93.1% |
| 20 Nov 2024, 13:08 | 87.1 | 87.1% |
| 16 Oct 2024, 10:03 | 98.4 | 98.4% |
| 24 Sep 2024, 13:08 | 91.6 | 91.6% |
| 22 Aug 2024, 11:56 | 97 | 97% |
| 19 Jul 2024, 13:08 | 95.1 | 95.1% |
| 20 Jun 2024, 11:40 | 95.4 | 95.4% |
| 4 Mar 2024, 11:45 | 97.2 | 97.2% |
| 2 Feb 2024, 12:06 | 99.3 | 99.3% |
| 11 Jan 2024, 13:11 | 92.8 | 92.8% |
| 7 Dec 2023, 12:54 | 96.2 | 96.2% |
| 3 Nov 2023, 10:43 | 89.4 | 89.4% |
| 10 Oct 2023, 13:57 | 94 | 94% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.8 mg/l
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 10.8 | 10.8 mg/l |
| 5 Mar 2026, 15:23 | 10.2 | 10.2 mg/l |
| 11 Feb 2026, 10:14 | 11 | 11 mg/l |
| 29 Jan 2026, 11:39 | 11.8 | 11.8 mg/l |
| 18 Dec 2025, 11:58 | 11.2 | 11.2 mg/l |
| 6 Nov 2025, 12:32 | 9.86 | 9.86 mg/l |
| 16 Oct 2025, 11:09 | 10.5 | 10.5 mg/l |
| 5 Sep 2025, 11:37 | 9.4 | 9.4 mg/l |
| 21 Aug 2025, 13:27 | 9.74 | 9.74 mg/l |
| 14 Jul 2025, 10:12 | 8.06 | 8.06 mg/l |
| 13 Jun 2025, 10:04 | 9.14 | 9.14 mg/l |
| 28 May 2025, 15:07 | 9.75 | 9.75 mg/l |
| 23 Apr 2025, 11:35 | 10.7 | 10.7 mg/l |
| 18 Mar 2025, 11:20 | 12.3 | 12.3 mg/l |
| 14 Feb 2025, 10:29 | 12.7 | 12.7 mg/l |
| 30 Jan 2025, 10:23 | 12.1 | 12.1 mg/l |
| 4 Dec 2024, 11:30 | 11.1 | 11.1 mg/l |
| 20 Nov 2024, 13:08 | 10.7 | 10.7 mg/l |
| 16 Oct 2024, 10:03 | 10.8 | 10.8 mg/l |
| 24 Sep 2024, 13:08 | 9.33 | 9.33 mg/l |
| 22 Aug 2024, 11:56 | 9.35 | 9.35 mg/l |
| 19 Jul 2024, 13:08 | 8.69 | 8.69 mg/l |
| 20 Jun 2024, 11:40 | 9.37 | 9.37 mg/l |
| 4 Mar 2024, 11:45 | 12.1 | 12.1 mg/l |
| 2 Feb 2024, 12:06 | 12.1 | 12.1 mg/l |
| 11 Jan 2024, 13:11 | 12 | 12 mg/l |
| 7 Dec 2023, 12:54 | 12.1 | 12.1 mg/l |
| 3 Nov 2023, 10:43 | 9.93 | 9.93 mg/l |
| 10 Oct 2023, 13:57 | 9.29 | 9.29 mg/l |
Water temperature
code 0076 · °C
12.6 °C
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 12.6 | 12.6 °C |
| 5 Mar 2026, 15:23 | 9.6 | 9.6 °C |
| 11 Feb 2026, 10:14 | 8.6 | 8.6 °C |
| 29 Jan 2026, 11:39 | 5.6 | 5.6 °C |
| 18 Dec 2025, 11:58 | 8 | 8 °C |
| 6 Nov 2025, 12:32 | 12.7 | 12.7 °C |
| 16 Oct 2025, 11:09 | 12.2 | 12.2 °C |
| 5 Sep 2025, 11:37 | 16 | 16 °C |
| 21 Aug 2025, 13:27 | 17.4 | 17.4 °C |
| 14 Jul 2025, 10:12 | 22.2 | 22.2 °C |
| 13 Jun 2025, 10:04 | 17.3 | 17.3 °C |
| 28 May 2025, 15:07 | 16.7 | 16.7 °C |
| 23 Apr 2025, 11:35 | 12.4 | 12.4 °C |
| 18 Mar 2025, 11:20 | 7 | 7 °C |
| 14 Feb 2025, 10:29 | 4.3 | 4.3 °C |
| 30 Jan 2025, 10:23 | 5.4 | 5.4 °C |
| 4 Dec 2024, 11:30 | 7.7 | 7.7 °C |
| 20 Nov 2024, 13:08 | 6.3 | 6.3 °C |
| 16 Oct 2024, 10:03 | 11 | 11 °C |
| 24 Sep 2024, 13:08 | 14.4 | 14.4 °C |
| 22 Aug 2024, 11:56 | 17 | 17 °C |
| 19 Jul 2024, 13:08 | 19.6 | 19.6 °C |
| 20 Jun 2024, 11:40 | 16.1 | 16.1 °C |
| 4 Mar 2024, 11:45 | 5.8 | 5.8 °C |
| 2 Feb 2024, 12:06 | 6.9 | 6.9 °C |
| 11 Jan 2024, 13:11 | 4.4 | 4.4 °C |
| 7 Dec 2023, 12:54 | 5.4 | 5.4 °C |
| 3 Nov 2023, 10:43 | 10.6 | 10.6 °C |
| 10 Oct 2023, 13:57 | 15.8 | 15.8 °C |
pH
code 0061
8.2
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 8.2 | 8.2 |
| 5 Mar 2026, 15:23 | 8.24 | 8.24 |
| 11 Feb 2026, 10:14 | 7.74 | 7.74 |
| 29 Jan 2026, 11:39 | 7.52 | 7.52 |
| 18 Dec 2025, 11:58 | 7.59 | 7.59 |
| 6 Nov 2025, 12:32 | 7.45 | 7.45 |
| 16 Oct 2025, 11:09 | 7.85 | 7.85 |
| 5 Sep 2025, 11:37 | 8.07 | 8.07 |
| 21 Aug 2025, 13:27 | 8.11 | 8.11 |
| 14 Jul 2025, 10:12 | 7.74 | 7.74 |
| 13 Jun 2025, 10:04 | 8 | 8 |
| 28 May 2025, 15:07 | 8.06 | 8.06 |
| 23 Apr 2025, 11:35 | 8.2 | 8.2 |
| 18 Mar 2025, 11:20 | 8.12 | 8.12 |
| 14 Feb 2025, 10:29 | 7.89 | 7.89 |
| 30 Jan 2025, 10:23 | 7.76 | 7.76 |
| 4 Dec 2024, 11:30 | 7.85 | 7.85 |
| 20 Nov 2024, 13:08 | 7.76 | 7.76 |
| 16 Oct 2024, 10:03 | 7.8 | 7.8 |
| 24 Sep 2024, 13:08 | 7.91 | 7.91 |
| 22 Aug 2024, 11:56 | 8.07 | 8.07 |
| 19 Jul 2024, 13:08 | 7.89 | 7.89 |
| 20 Jun 2024, 11:40 | 7.94 | 7.94 |
| 4 Mar 2024, 11:45 | 7.77 | 7.77 |
| 2 Feb 2024, 12:06 | 7.74 | 7.74 |
| 11 Jan 2024, 13:11 | 7.79 | 7.79 |
| 7 Dec 2023, 12:54 | 7.86 | 7.86 |
| 3 Nov 2023, 10:43 | 7.58 | 7.58 |
| 10 Oct 2023, 13:57 | 7.8 | 7.8 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2026, 15:23 | 0.06 | 0.06 mg/l |
| 11 Feb 2026, 10:14 | 0.063 | 0.063 mg/l |
| 29 Jan 2026, 11:39 | 0.065 | 0.065 mg/l |
| 18 Dec 2025, 11:58 | 0.071 | 0.071 mg/l |
| 6 Nov 2025, 12:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2025, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Sep 2025, 11:37 | 0.033 | 0.033 mg/l |
| 21 Aug 2025, 13:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jul 2025, 10:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Jun 2025, 10:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 May 2025, 15:07 | 0.047 | 0.047 mg/l |
| 23 Apr 2025, 11:35 | 0.13 | 0.13 mg/l |
| 18 Mar 2025, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Feb 2025, 10:29 | 0.045 | 0.045 mg/l |
| 30 Jan 2025, 10:23 | 0.087 | 0.087 mg/l |
| 4 Dec 2024, 11:30 | 0.032 | 0.032 mg/l |
| 20 Nov 2024, 13:08 | 0.071 | 0.071 mg/l |
| 16 Oct 2024, 10:03 | 0.034 | 0.034 mg/l |
| 24 Sep 2024, 13:08 | 0.064 | 0.064 mg/l |
| 22 Aug 2024, 11:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jul 2024, 13:08 | 0.039 | 0.039 mg/l |
| 20 Jun 2024, 11:40 | 0.034 | 0.034 mg/l |
| 4 Mar 2024, 11:45 | 0.089 | 0.089 mg/l |
| 2 Feb 2024, 12:06 | 0.073 | 0.073 mg/l |
| 11 Jan 2024, 13:11 | 0.14 | 0.14 mg/l |
| 7 Dec 2023, 12:54 | 0.085 | 0.085 mg/l |
| 3 Nov 2023, 10:43 | 0.054 | 0.054 mg/l |
| 10 Oct 2023, 13:57 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.98 mg/l
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 4.98 | 4.98 mg/l |
| 5 Mar 2026, 15:23 | 3.88 | 3.88 mg/l |
| 11 Feb 2026, 10:14 | 3.48 | 3.48 mg/l |
| 29 Jan 2026, 11:39 | 3.38 | 3.38 mg/l |
| 18 Dec 2025, 11:58 | 4.58 | 4.58 mg/l |
| 6 Nov 2025, 12:32 | 1.89 | 1.89 mg/l |
| 16 Oct 2025, 11:09 | 3 | 3 mg/l |
| 5 Sep 2025, 11:37 | 4.19 | 4.19 mg/l |
| 21 Aug 2025, 13:27 | 4.19 | 4.19 mg/l |
| 14 Jul 2025, 10:12 | 3.69 | 3.69 mg/l |
| 13 Jun 2025, 10:04 | 3.79 | 3.79 mg/l |
| 28 May 2025, 15:07 | 5.68 | 5.68 mg/l |
| 23 Apr 2025, 11:35 | 5.76 | 5.76 mg/l |
| 18 Mar 2025, 11:20 | 5.69 | 5.69 mg/l |
| 14 Feb 2025, 10:29 | 4.87 | 4.87 mg/l |
| 30 Jan 2025, 10:23 | 2.87 | 2.87 mg/l |
| 4 Dec 2024, 11:30 | 2.88 | 2.88 mg/l |
| 20 Nov 2024, 13:08 | 4.37 | 4.37 mg/l |
| 16 Oct 2024, 10:03 | 3.38 | 3.38 mg/l |
| 24 Sep 2024, 13:08 | 4.47 | 4.47 mg/l |
| 22 Aug 2024, 11:56 | 4.79 | 4.79 mg/l |
| 19 Jul 2024, 13:08 | 3.88 | 3.88 mg/l |
| 20 Jun 2024, 11:40 | 4.28 | 4.28 mg/l |
| 4 Mar 2024, 11:45 | 3.67 | 3.67 mg/l |
| 2 Feb 2024, 12:06 | 3.78 | 3.78 mg/l |
| 11 Jan 2024, 13:11 | 3.67 | 3.67 mg/l |
| 7 Dec 2023, 12:54 | 4.57 | 4.57 mg/l |
| 3 Nov 2023, 10:43 | 3.77 | 3.77 mg/l |
| 10 Oct 2023, 13:57 | 2 | 2 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.042 mg/l
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 0.042 | 0.042 mg/l |
| 5 Mar 2026, 15:23 | 0.066 | 0.066 mg/l |
| 11 Feb 2026, 10:14 | 0.06 | 0.06 mg/l |
| 29 Jan 2026, 11:39 | 0.07 | 0.07 mg/l |
| 18 Dec 2025, 11:58 | 0.17 | 0.17 mg/l |
| 6 Nov 2025, 12:32 | 0.059 | 0.059 mg/l |
| 16 Oct 2025, 11:09 | 0.097 | 0.097 mg/l |
| 5 Sep 2025, 11:37 | 0.14 | 0.14 mg/l |
| 21 Aug 2025, 13:27 | 0.15 | 0.15 mg/l |
| 14 Jul 2025, 10:12 | 0.11 | 0.11 mg/l |
| 13 Jun 2025, 10:04 | 0.1 | 0.1 mg/l |
| 28 May 2025, 15:07 | 0.16 | 0.16 mg/l |
| 23 Apr 2025, 11:35 | 0.087 | 0.087 mg/l |
| 18 Mar 2025, 11:20 | 0.11 | 0.11 mg/l |
| 14 Feb 2025, 10:29 | 0.22 | 0.22 mg/l |
| 30 Jan 2025, 10:23 | 0.18 | 0.18 mg/l |
| 4 Dec 2024, 11:30 | 0.066 | 0.066 mg/l |
| 20 Nov 2024, 13:08 | 0.13 | 0.13 mg/l |
| 16 Oct 2024, 10:03 | 0.079 | 0.079 mg/l |
| 24 Sep 2024, 13:08 | 0.17 | 0.17 mg/l |
| 22 Aug 2024, 11:56 | 0.22 | 0.22 mg/l |
| 19 Jul 2024, 13:08 | 0.17 | 0.17 mg/l |
| 20 Jun 2024, 11:40 | 0.13 | 0.13 mg/l |
| 4 Mar 2024, 11:45 | 0.094 | 0.094 mg/l |
| 2 Feb 2024, 12:06 | 0.085 | 0.085 mg/l |
| 11 Jan 2024, 13:11 | 0.22 | 0.22 mg/l |
| 7 Dec 2023, 12:54 | 0.12 | 0.12 mg/l |
| 3 Nov 2023, 10:43 | 0.09 | 0.09 mg/l |
| 10 Oct 2023, 13:57 | 0.091 | 0.091 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
514 µS/cm
Sampled 7 May 2026, 5 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 11:44 | 514 | 514 µS/cm |
| 5 Mar 2026, 15:23 | 327 | 327 µS/cm |
| 11 Feb 2026, 10:14 | 247 | 247 µS/cm |
| 29 Jan 2026, 11:39 | 231 | 231 µS/cm |
| 18 Dec 2025, 11:58 | 287 | 287 µS/cm |
| 6 Nov 2025, 12:32 | 149 | 149 µS/cm |
| 16 Oct 2025, 11:09 | 3174 | 3174 µS/cm |
| 5 Sep 2025, 11:37 | 450 | 450 µS/cm |
| 21 Aug 2025, 13:27 | 393 | 393 µS/cm |
| 14 Jul 2025, 10:12 | 439 | 439 µS/cm |
| 13 Jun 2025, 10:04 | 423 | 423 µS/cm |
| 28 May 2025, 15:07 | 572 | 572 µS/cm |
| 23 Apr 2025, 11:35 | 543 | 543 µS/cm |
| 18 Mar 2025, 11:20 | 479 | 479 µS/cm |
| 14 Feb 2025, 10:29 | 438 | 438 µS/cm |
| 30 Jan 2025, 10:23 | 245 | 245 µS/cm |
| 4 Dec 2024, 11:30 | 259 | 259 µS/cm |
| 20 Nov 2024, 13:08 | 390 | 390 µS/cm |
| 16 Oct 2024, 10:03 | 347 | 347 µS/cm |
| 24 Sep 2024, 13:08 | 353 | 353 µS/cm |
| 22 Aug 2024, 11:56 | 487 | 487 µS/cm |
| 19 Jul 2024, 13:08 | 379 | 379 µS/cm |
| 20 Jun 2024, 11:40 | 406 | 406 µS/cm |
| 4 Mar 2024, 11:45 | 333 | 333 µS/cm |
| 2 Feb 2024, 12:06 | 321 | 321 µS/cm |
| 11 Jan 2024, 13:11 | 309 | 309 µS/cm |
| 7 Dec 2023, 12:54 | 311 | 311 µS/cm |
| 3 Nov 2023, 10:43 | 268 | 268 µS/cm |
| 10 Oct 2023, 13:57 | 219 | 219 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 | 29 | Oct 2023 – May 2026 | 101.6% 7 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – May 2026 | 10.8 mg/l 7 May 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – May 2026 | 12.6 °C 7 May 2026 |
| pH 0061 | River water | 29 | Oct 2023 – May 2026 | 8.2 7 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Oct 2023 – May 2026 | below 0.03 mg/l 7 May 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – May 2026 | 4.98 mg/l 7 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – May 2026 | 0.042 mg/l 7 May 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – May 2026 | 514 µS/cm 7 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Apr 2024 – Aug 2024 | below 0.004 µg/l 22 Aug 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 3 | Apr 2024 – Aug 2024 | below 0.005 µg/l 22 Aug 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 29 | Oct 2023 – May 2026 | 130 mg/l 7 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – May 2026 | below 0.00066 mg/l 7 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.6 mg/l 7 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| Nitrite as N 0118 | River water | 29 | Oct 2023 – May 2026 | 0.017 mg/l 7 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – May 2026 | 5 mg/l 7 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 3 | Apr 2024 – Aug 2024 | 0.0014 µg/l 22 Aug 2024 |
| Perfluorobutanoic acid 2995 | River water | 2 | Apr 2024 – Aug 2024 | 0.0021 µg/l 22 Aug 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| Perfluorodecanoic acid 8892 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Apr 2024 – Aug 2024 | below 0.005 µg/l 22 Aug 2024 |
| Perfluorododecanoic acid 8894 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluoroheptanoic acid 8889 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorohexanoic acid 8888 | River water | 3 | Apr 2024 – Aug 2024 | 0.0014 µg/l 22 Aug 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorononanoic acid 8891 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Apr 2024 – Aug 2024 | below 0.001 µg/l 22 Aug 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluorooctanoic acid 8890 | River water | 2 | Apr 2024 – Aug 2024 | 0.00067 µg/l 22 Aug 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Apr 2024 – Aug 2024 | below 0.0005 µg/l 22 Aug 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | Apr 2024 – Aug 2024 | 0.0012 µg/l 22 Aug 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 3 | Apr 2024 – Aug 2024 | below 0.006 µg/l 22 Aug 2024 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Apr 2024 – Aug 2024 | below 0.005 µg/l 22 Aug 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Apr 2024 – Aug 2024 | below 0.004 µg/l 22 Aug 2024 |
| Perfluoroundecanoic acid 8893 | River water | 3 | Apr 2024 – Aug 2024 | below 0.002 µg/l 22 Aug 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.