River Derwent at Allestree Ford
EA name: RIVER DERWENT AT ALLESTREE FORD
Environment Agency sampling point MD-49698650 · 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
- 13 Aug 2026, 11:2849 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 41 since 25 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 435955, 340165As published, to the nearest 1 m. Open in a map
- River, by its own name
- Derwent
- River, by the map
- River DerwentPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Derby City On the River Derwent · 5.1 km along the river
- Nearest gauge upstream
- Duffield On the River Ecclesbourne · 8.6 km along the riverSmithy Houses On the Bottle Brook · 8.7 km along the riverWingfield Park On the River Amber · 21 km along the river
- Why it was sampled
- Monitoring (national agency policy) (32 samples)
Planned investigation (local monitoring) (7 samples)
Unplanned reactive monitoring (pollution incidents) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
100.9%
Sampled 13 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 100.9 | 100.9% |
| 27 Apr 2026, 12:34 | 119.4 | 119.4% |
| 5 Mar 2026, 13:52 | 100.3 | 100.3% |
| 9 Feb 2026, 09:57 | 100.7 | 100.7% |
| 9 Jan 2026, 10:19 | 99.8 | 99.8% |
| 3 Dec 2025, 07:26 | 97.3 | 97.3% |
| 13 Nov 2025, 13:38 | 96.3 | 96.3% |
| 16 Oct 2025, 09:49 | 96 | 96% |
| 5 Sep 2025, 11:33 | 98.4 | 98.4% |
| 8 Aug 2025, 12:55 | 108.8 | 108.8% |
| 30 Jul 2025, 09:52 | 95.7 | 95.7% |
| 12 Jun 2025, 11:29 | 99.1 | 99.1% |
| 14 May 2025, 10:00 | 91.7 | 91.7% |
| 11 Mar 2025, 09:18 | 97.8 | 97.8% |
| 5 Feb 2025, 10:03 | 100.1 | 100.1% |
| 22 Jan 2025, 09:20 | 101.1 | 101.1% |
| 5 Dec 2024, 11:10 | 99 | 99% |
| 21 Nov 2024, 09:18 | 95.5 | 95.5% |
| 14 Oct 2024, 08:21 | 98 | 98% |
| 23 Sep 2024, 10:38 | 91.9 | 91.9% |
| 19 Aug 2024, 11:15 | 95.8 | 95.8% |
| 17 Jul 2024, 09:18 | 96 | 96% |
| 24 Jun 2024, 09:09 | 94.9 | 94.9% |
| 22 May 2024, 08:59 | 92.1 | 92.1% |
| 15 Apr 2024, 12:07 | 98.2 | 98.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.1 mg/l
Sampled 13 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 11.1 | 11.1 mg/l |
| 27 Apr 2026, 12:34 | 12.4 | 12.4 mg/l |
| 5 Mar 2026, 13:52 | 11.4 | 11.4 mg/l |
| 9 Feb 2026, 09:57 | 12.1 | 12.1 mg/l |
| 9 Jan 2026, 10:19 | 13 | 13 mg/l |
| 3 Dec 2025, 07:26 | 11.7 | 11.7 mg/l |
| 13 Nov 2025, 13:38 | 10.4 | 10.4 mg/l |
| 16 Oct 2025, 09:49 | 10.4 | 10.4 mg/l |
| 5 Sep 2025, 11:33 | 9.88 | 9.88 mg/l |
| 8 Aug 2025, 12:55 | 10.5 | 10.5 mg/l |
| 30 Jul 2025, 09:52 | 9.22 | 9.22 mg/l |
| 12 Jun 2025, 11:29 | 9.76 | 9.76 mg/l |
| 14 May 2025, 10:00 | 9.34 | 9.34 mg/l |
| 11 Mar 2025, 09:18 | 11.6 | 11.6 mg/l |
| 5 Feb 2025, 10:03 | 12.3 | 12.3 mg/l |
| 22 Jan 2025, 09:20 | 12.5 | 12.5 mg/l |
| 5 Dec 2024, 11:10 | 11.6 | 11.6 mg/l |
| 21 Nov 2024, 09:18 | 12.6 | 12.6 mg/l |
| 14 Oct 2024, 08:21 | 11.5 | 11.5 mg/l |
| 23 Sep 2024, 10:38 | 9.41 | 9.41 mg/l |
| 19 Aug 2024, 11:15 | 9.68 | 9.68 mg/l |
| 17 Jul 2024, 09:18 | 9.85 | 9.85 mg/l |
| 24 Jun 2024, 09:09 | 9.17 | 9.17 mg/l |
| 22 May 2024, 08:59 | 9.55 | 9.55 mg/l |
| 15 Apr 2024, 12:07 | 11.2 | 11.2 mg/l |
Water temperature
code 0076 · °C
10.9 °C
Sampled 13 May 2026, 5 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 10.9 | 10.9 °C |
| 27 Apr 2026, 12:34 | 13.4 | 13.4 °C |
| 5 Mar 2026, 13:52 | 9.6 | 9.6 °C |
| 9 Feb 2026, 09:57 | 7.5 | 7.5 °C |
| 9 Jan 2026, 10:19 | 4.1 | 4.1 °C |
| 3 Dec 2025, 07:26 | 7.3 | 7.3 °C |
| 13 Nov 2025, 13:38 | 11.7 | 11.7 °C |
| 16 Oct 2025, 09:49 | 11.5 | 11.5 °C |
| 5 Sep 2025, 11:33 | 15.1 | 15.1 °C |
| 8 Aug 2025, 12:55 | 17.1 | 17.1 °C |
| 30 Jul 2025, 09:52 | 17 | 17 °C |
| 12 Jun 2025, 11:29 | 16 | 16 °C |
| 14 May 2025, 10:00 | 14.4 | 14.4 °C |
| 11 Mar 2025, 09:18 | 7.8 | 7.8 °C |
| 5 Feb 2025, 10:03 | 6.4 | 6.4 °C |
| 22 Jan 2025, 09:20 | 6.1 | 6.1 °C |
| 5 Dec 2024, 11:10 | 8.4 | 8.4 °C |
| 21 Nov 2024, 09:18 | 3.8 | 3.8 °C |
| 14 Oct 2024, 08:21 | 8.3 | 8.3 °C |
| 23 Sep 2024, 10:38 | 14.2 | 14.2 °C |
| 19 Aug 2024, 11:15 | 14.8 | 14.8 °C |
| 17 Jul 2024, 09:18 | 14.1 | 14.1 °C |
| 24 Jun 2024, 09:09 | 16.9 | 16.9 °C |
| 22 May 2024, 08:59 | 13.6 | 13.6 °C |
| 15 Apr 2024, 12:07 | 9.5 | 9.5 °C |
| 25 Mar 2024, 12:36 | 8.4 | 8.4 °C |
| 13 Feb 2024, 12:17 | 7.1 | 7.1 °C |
| 16 Jan 2024, 13:23 | 4.6 | 4.6 °C |
| 18 Dec 2023, 15:02 | 9.4 | 9.4 °C |
| 21 Nov 2023, 11:45 | 9.6 | 9.6 °C |
| 25 Oct 2023, 09:57 | 10.3 | 10.3 °C |
pH
code 0061
8.28
Sampled 13 May 2026, 5 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 8.28 | 8.28 |
| 27 Apr 2026, 12:34 | 8.53 | 8.53 |
| 5 Mar 2026, 13:52 | 8.06 | 8.06 |
| 9 Feb 2026, 09:57 | 8.01 | 8.01 |
| 9 Jan 2026, 10:19 | 8.07 | 8.07 |
| 3 Dec 2025, 07:26 | 8.13 | 8.13 |
| 13 Nov 2025, 13:38 | 8.04 | 8.04 |
| 16 Oct 2025, 09:49 | 8.17 | 8.17 |
| 5 Sep 2025, 11:33 | 8.2 | 8.2 |
| 8 Aug 2025, 12:55 | 8.45 | 8.45 |
| 30 Jul 2025, 09:52 | 8.05 | 8.05 |
| 12 Jun 2025, 11:29 | 8.18 | 8.18 |
| 14 May 2025, 10:00 | 8.14 | 8.14 |
| 11 Mar 2025, 09:18 | 8.28 | 8.28 |
| 5 Feb 2025, 10:03 | 8.25 | 8.25 |
| 22 Jan 2025, 09:20 | 8.15 | 8.15 |
| 5 Dec 2024, 11:10 | 8.23 | 8.23 |
| 21 Nov 2024, 09:18 | 8.15 | 8.15 |
| 14 Oct 2024, 08:21 | 8.22 | 8.22 |
| 23 Sep 2024, 10:38 | 7.92 | 7.92 |
| 19 Aug 2024, 11:15 | 8.26 | 8.26 |
| 17 Jul 2024, 09:18 | 8.02 | 8.02 |
| 24 Jun 2024, 09:09 | 8.12 | 8.12 |
| 22 May 2024, 08:59 | 7.93 | 7.93 |
| 15 Apr 2024, 12:07 | 8.24 | 8.24 |
| 25 Mar 2024, 12:36 | 8.1 | 8.1 |
| 13 Feb 2024, 12:17 | 8.1 | 8.1 |
| 16 Jan 2024, 13:23 | 8.2 | 8.2 |
| 18 Dec 2023, 15:02 | 8.4 | 8.4 |
| 21 Nov 2023, 11:45 | 8.1 | 8.1 |
| 25 Oct 2023, 09:57 | 8.1 | 8.1 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.083 mg/l
Sampled 13 May 2026, 5 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 0.083 | 0.083 mg/l |
| 27 Apr 2026, 12:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2026, 13:52 | 0.049 | 0.049 mg/l |
| 9 Feb 2026, 09:57 | 0.046 | 0.046 mg/l |
| 9 Jan 2026, 10:19 | 0.16 | 0.16 mg/l |
| 3 Dec 2025, 07:26 | 0.033 | 0.033 mg/l |
| 13 Nov 2025, 13:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2025, 09:49 | 0.061 | 0.061 mg/l |
| 5 Sep 2025, 11:33 | 0.097 | 0.097 mg/l |
| 30 Jul 2025, 09:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jun 2025, 11:29 | 0.06 | 0.06 mg/l |
| 14 May 2025, 10:00 | 0.086 | 0.086 mg/l |
| 11 Mar 2025, 09:18 | 0.067 | 0.067 mg/l |
| 5 Feb 2025, 10:03 | 0.088 | 0.088 mg/l |
| 22 Jan 2025, 09:20 | 0.098 | 0.098 mg/l |
| 5 Dec 2024, 11:10 | 0.12 | 0.12 mg/l |
| 21 Nov 2024, 09:18 | 0.11 | 0.11 mg/l |
| 14 Oct 2024, 08:21 | 0.041 | 0.041 mg/l |
| 23 Sep 2024, 10:38 | 0.15 | 0.15 mg/l |
| 19 Aug 2024, 11:15 | 0.053 | 0.053 mg/l |
| 17 Jul 2024, 09:18 | 0.065 | 0.065 mg/l |
| 24 Jun 2024, 09:09 | 0.068 | 0.068 mg/l |
| 22 May 2024, 08:59 | 0.17 | 0.17 mg/l |
| 15 Apr 2024, 12:07 | 0.12 | 0.12 mg/l |
| 25 Mar 2024, 12:36 | 0.074 | 0.074 mg/l |
| 13 Feb 2024, 12:17 | 0.057 | 0.057 mg/l |
| 16 Jan 2024, 13:23 | 0.11 | 0.11 mg/l |
| 18 Dec 2023, 15:02 | 0.095 | 0.095 mg/l |
| 21 Nov 2023, 11:45 | 0.044 | 0.044 mg/l |
| 25 Oct 2023, 09:57 | 0.085 | 0.085 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.27 mg/l
Sampled 13 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 3.27 | 3.27 mg/l |
| 27 Apr 2026, 12:34 | 3.18 | 3.18 mg/l |
| 5 Mar 2026, 13:52 | 3.29 | 3.29 mg/l |
| 9 Feb 2026, 09:57 | 2.79 | 2.79 mg/l |
| 9 Jan 2026, 10:19 | 3.48 | 3.48 mg/l |
| 3 Dec 2025, 07:26 | 3.09 | 3.09 mg/l |
| 13 Nov 2025, 13:38 | 3.19 | 3.19 mg/l |
| 16 Oct 2025, 09:49 | 3.18 | 3.18 mg/l |
| 5 Sep 2025, 11:33 | 3.37 | 3.37 mg/l |
| 30 Jul 2025, 09:52 | 2.39 | 2.39 mg/l |
| 12 Jun 2025, 11:29 | 3.47 | 3.47 mg/l |
| 14 May 2025, 10:00 | 3.77 | 3.77 mg/l |
| 11 Mar 2025, 09:18 | 3.48 | 3.48 mg/l |
| 5 Feb 2025, 10:03 | 3.18 | 3.18 mg/l |
| 22 Jan 2025, 09:20 | 2.88 | 2.88 mg/l |
| 5 Dec 2024, 11:10 | 2.98 | 2.98 mg/l |
| 21 Nov 2024, 09:18 | 3.47 | 3.47 mg/l |
| 14 Oct 2024, 08:21 | 2.99 | 2.99 mg/l |
| 23 Sep 2024, 10:38 | 3.46 | 3.46 mg/l |
| 19 Aug 2024, 11:15 | 3.17 | 3.17 mg/l |
| 17 Jul 2024, 09:18 | 2.48 | 2.48 mg/l |
| 24 Jun 2024, 09:09 | 3.08 | 3.08 mg/l |
| 22 May 2024, 08:59 | 3.46 | 3.46 mg/l |
| 15 Apr 2024, 12:07 | 2.88 | 2.88 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.045 mg/l
Sampled 13 May 2026, 5 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 0.045 | 0.045 mg/l |
| 27 Apr 2026, 12:34 | 0.027 | 0.027 mg/l |
| 5 Mar 2026, 13:52 | 0.045 | 0.045 mg/l |
| 9 Feb 2026, 09:57 | 0.04 | 0.04 mg/l |
| 9 Jan 2026, 10:19 | 0.094 | 0.094 mg/l |
| 3 Dec 2025, 07:26 | 0.049 | 0.049 mg/l |
| 13 Nov 2025, 13:38 | 0.093 | 0.093 mg/l |
| 16 Oct 2025, 09:49 | 0.12 | 0.12 mg/l |
| 5 Sep 2025, 11:33 | 0.25 | 0.25 mg/l |
| 30 Jul 2025, 09:52 | 0.14 | 0.14 mg/l |
| 12 Jun 2025, 11:29 | 0.15 | 0.15 mg/l |
| 14 May 2025, 10:00 | 0.16 | 0.16 mg/l |
| 11 Mar 2025, 09:18 | 0.09 | 0.09 mg/l |
| 5 Feb 2025, 10:03 | 0.063 | 0.063 mg/l |
| 22 Jan 2025, 09:20 | 0.065 | 0.065 mg/l |
| 5 Dec 2024, 11:10 | 0.1 | 0.1 mg/l |
| 21 Nov 2024, 09:18 | 0.13 | 0.13 mg/l |
| 14 Oct 2024, 08:21 | 0.07 | 0.07 mg/l |
| 23 Sep 2024, 10:38 | 0.18 | 0.18 mg/l |
| 19 Aug 2024, 11:15 | 0.12 | 0.12 mg/l |
| 17 Jul 2024, 09:18 | 0.12 | 0.12 mg/l |
| 24 Jun 2024, 09:09 | 0.11 | 0.11 mg/l |
| 22 May 2024, 08:59 | 0.089 | 0.089 mg/l |
| 15 Apr 2024, 12:07 | 0.094 | 0.094 mg/l |
| 25 Mar 2024, 12:36 | 0.05 | 0.05 mg/l |
| 13 Feb 2024, 12:17 | 0.05 | 0.05 mg/l |
| 16 Jan 2024, 13:23 | 0.062 | 0.062 mg/l |
| 18 Dec 2023, 15:02 | 0.055 | 0.055 mg/l |
| 21 Nov 2023, 11:45 | 0.039 | 0.039 mg/l |
| 25 Oct 2023, 09:57 | 0.052 | 0.052 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
594 µS/cm
Sampled 13 May 2026, 5 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 May 2026, 10:17 | 594 | 594 µS/cm |
| 27 Apr 2026, 12:34 | 662 | 662 µS/cm |
| 5 Mar 2026, 13:52 | 500 | 500 µS/cm |
| 9 Feb 2026, 09:57 | 340 | 340 µS/cm |
| 9 Jan 2026, 10:19 | 571 | 571 µS/cm |
| 3 Dec 2025, 07:26 | 395 | 395 µS/cm |
| 13 Nov 2025, 13:38 | 409 | 409 µS/cm |
| 16 Oct 2025, 09:49 | 637 | 637 µS/cm |
| 5 Sep 2025, 11:33 | 746 | 746 µS/cm |
| 8 Aug 2025, 12:55 | 573 | 573 µS/cm |
| 30 Jul 2025, 09:52 | 535 | 535 µS/cm |
| 12 Jun 2025, 11:29 | 658 | 658 µS/cm |
| 14 May 2025, 10:00 | 638 | 638 µS/cm |
| 11 Mar 2025, 09:18 | 578 | 578 µS/cm |
| 5 Feb 2025, 10:03 | 508 | 508 µS/cm |
| 22 Jan 2025, 09:20 | 466 | 466 µS/cm |
| 5 Dec 2024, 11:10 | 502 | 502 µS/cm |
| 21 Nov 2024, 09:18 | 728 | 728 µS/cm |
| 14 Oct 2024, 08:21 | 475 | 475 µS/cm |
| 23 Sep 2024, 10:38 | 522 | 522 µS/cm |
| 19 Aug 2024, 11:15 | 629 | 629 µS/cm |
| 17 Jul 2024, 09:18 | 385 | 385 µS/cm |
| 24 Jun 2024, 09:09 | 610 | 610 µS/cm |
| 22 May 2024, 08:59 | 509 | 509 µS/cm |
| 15 Apr 2024, 12:07 | 451 | 451 µS/cm |
| 25 Mar 2024, 12:36 | 421 | 421 µS/cm |
| 13 Feb 2024, 12:17 | 440 | 440 µS/cm |
| 16 Jan 2024, 13:23 | 548 | 548 µS/cm |
| 18 Dec 2023, 15:02 | 486 | 486 µS/cm |
| 21 Nov 2023, 11:45 | 336 | 336 µS/cm |
| 25 Oct 2023, 09:57 | 415 | 415 µS/cm |
Everything measured here
106 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 106 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 25 | Apr 2024 – May 2026 | 100.9% 13 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 25 | Apr 2024 – May 2026 | 11.1 mg/l 13 May 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – May 2026 | 10.9 °C 13 May 2026 |
| pH 0061 | River water | 31 | Oct 2023 – May 2026 | 8.28 13 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – May 2026 | 0.083 mg/l 13 May 2026 |
| Nitrate as N 0117 | River water | 24 | Apr 2024 – May 2026 | 3.27 mg/l 13 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – May 2026 | 0.045 mg/l 13 May 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – May 2026 | 594 µS/cm 13 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 4 | Apr 2024 – Mar 2025 | below 0.004 µg/l 11 Mar 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 4 | Apr 2024 – Mar 2025 | below 0.005 µg/l 11 Mar 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – May 2026 | 170 mg/l 13 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Apr 2024 – May 2026 | 0.00162 mg/l 13 May 2026 |
| Barium 6062 | River water | 6 | Oct 2023 – Mar 2024 | 130 µg/l 25 Mar 2024 |
| Barium, Dissolved 9446 | River water | 6 | Oct 2023 – Mar 2024 | 120 µg/l 25 Mar 2024 |
| BOD : 5 Day ATU 0085 | River water | 24 | Apr 2024 – May 2026 | 1.6 mg/l 13 May 2026 |
| Boron 6059 | River water | 6 | Oct 2023 – Mar 2024 | below 100 µg/l 25 Mar 2024 |
| Boron, Dissolved 9447 | River water | 6 | Oct 2023 – Mar 2024 | below 100 µg/l 25 Mar 2024 |
| Bromide 0171 | River water | 11 | Aug 2025 – Aug 2026 | 0.36 mg/l 13 Aug 2026 |
| Cadmium 0108 | River water | 6 | Oct 2023 – Mar 2024 | 0.49 µg/l 25 Mar 2024 |
| Cadmium, Dissolved 0106 | River water | 6 | Oct 2023 – Mar 2024 | 0.23 µg/l 25 Mar 2024 |
| Calcium 0241 | River water | 6 | Oct 2023 – Mar 2024 | 57 mg/l 25 Mar 2024 |
| Calcium, Dissolved 0239 | River water | 6 | Oct 2023 – Mar 2024 | 55 mg/l 25 Mar 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 6 | Oct 2023 – Mar 2024 | 2.9 mg/l 25 Mar 2024 |
| Chloride 0172 | River water | 6 | Oct 2023 – Mar 2024 | 26 mg/l 25 Mar 2024 |
| Chromium 3164 | River water | 6 | Oct 2023 – Mar 2024 | 0.58 µg/l 25 Mar 2024 |
| Chromium, Dissolved 3409 | River water | 6 | Oct 2023 – Mar 2024 | below 0.5 µg/l 25 Mar 2024 |
| Copper 6452 | River water | 6 | Oct 2023 – Mar 2024 | 1.9 µg/l 25 Mar 2024 |
| Copper : BLM Bioavailable 4821 | River water | 6 | Oct 2023 – Mar 2024 | 0.19 µg/l 25 Mar 2024 |
| Copper, Dissolved 6450 | River water | 6 | Oct 2023 – Mar 2024 | 1.3 µg/l 25 Mar 2024 |
| Hardness, Total as CaCO3 0158 | River water | 6 | Oct 2023 – Mar 2024 | 168 mg/l 25 Mar 2024 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Ionic Balance 7044 | River water | 6 | Oct 2023 – Mar 2024 | -0.191% 25 Mar 2024 |
| Iron 6051 | River water | 6 | Oct 2023 – Mar 2024 | 430 µg/l 25 Mar 2024 |
| Iron, Dissolved 6460 | River water | 6 | Oct 2023 – Mar 2024 | 79 µg/l 25 Mar 2024 |
| Lead 0050 | River water | 6 | Oct 2023 – Mar 2024 | 12 µg/l 25 Mar 2024 |
| Lead : BLM Bioavailable 3377 | River water | 6 | Oct 2023 – Mar 2024 | 0.59 µg/l 25 Mar 2024 |
| Lead, Dissolved 0052 | River water | 6 | Oct 2023 – Mar 2024 | 1.7 µg/l 25 Mar 2024 |
| Lithium 6064 | River water | 6 | Oct 2023 – Mar 2024 | below 100 µg/l 25 Mar 2024 |
| Lithium, Dissolved 4201 | River water | 6 | Oct 2023 – Mar 2024 | below 100 µg/l 25 Mar 2024 |
| Magnesium 0237 | River water | 6 | Oct 2023 – Mar 2024 | 7.5 mg/l 25 Mar 2024 |
| Magnesium, Dissolved 0235 | River water | 6 | Oct 2023 – Mar 2024 | 7.5 mg/l 25 Mar 2024 |
| Manganese 6050 | River water | 6 | Oct 2023 – Mar 2024 | 37 µg/l 25 Mar 2024 |
| Manganese : BLM Bioavailable 4820 | River water | 6 | Oct 2023 – Mar 2024 | 21 µg/l 25 Mar 2024 |
| Manganese, Dissolved 6458 | River water | 6 | Oct 2023 – Mar 2024 | 21 µg/l 25 Mar 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Nickel 6462 | River water | 6 | Oct 2023 – Mar 2024 | 2.8 µg/l 25 Mar 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 6 | Oct 2023 – Mar 2024 | 1.1 µg/l 25 Mar 2024 |
| Nickel, Dissolved 3410 | River water | 6 | Oct 2023 – Mar 2024 | 2.2 µg/l 25 Mar 2024 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – May 2026 | 0.033 mg/l 13 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – May 2026 | 3.3 mg/l 13 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 4 | Apr 2024 – Mar 2025 | 0.0012 µg/l 11 Mar 2025 |
| Perfluorobutanoic acid 2995 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluorodecanoic acid 8892 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 4 | Apr 2024 – Mar 2025 | below 0.005 µg/l 11 Mar 2025 |
| Perfluorododecanoic acid 8894 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoroheptanoic acid 8889 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorohexanoic acid 8888 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorononanoic acid 8891 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 4 | Apr 2024 – Mar 2025 | 0.00057 µg/l 11 Mar 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluorooctanoic acid 8890 | River water | 4 | Apr 2024 – Mar 2025 | 0.00072 µg/l 11 Mar 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 11 Mar 2025 |
| Perfluoropentanoic acid 8887 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 11 Mar 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 4 | Apr 2024 – Mar 2025 | below 0.006 µg/l 11 Mar 2025 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Jul 2024 – Mar 2025 | below 0.005 µg/l 11 Mar 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 4 | Apr 2024 – Mar 2025 | below 0.004 µg/l 11 Mar 2025 |
| Perfluoroundecanoic acid 8893 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 11 Mar 2025 |
| Potassium 0211 | River water | 6 | Oct 2023 – Mar 2024 | 2.5 mg/l 25 Mar 2024 |
| Potassium, Dissolved 0209 | River water | 6 | Oct 2023 – Mar 2024 | 2.6 mg/l 25 Mar 2024 |
| Silica, reactive as SiO2 0182 | River water | 6 | Oct 2023 – Mar 2024 | 6.6 mg/l 25 Mar 2024 |
| Sodium 0207 | River water | 6 | Oct 2023 – Mar 2024 | 20 mg/l 25 Mar 2024 |
| Sodium, Dissolved 0205 | River water | 6 | Oct 2023 – Mar 2024 | 19 mg/l 25 Mar 2024 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Oct 2023 – Mar 2024 | 8.9 mg/l 25 Mar 2024 |
| Strontium 6063 | River water | 6 | Oct 2023 – Mar 2024 | 160 µg/l 25 Mar 2024 |
| Strontium, Filtered 6693 | River water | 6 | Oct 2023 – Mar 2024 | 160 µg/l 25 Mar 2024 |
| Sulphate as SO4 0183 | River water | 6 | Oct 2023 – Mar 2024 | 33 mg/l 25 Mar 2024 |
| Sulphate, Dissolved as SO4 7859 | River water | 6 | Oct 2023 – Mar 2024 | 33 mg/l 25 Mar 2024 |
| Zinc 6455 | River water | 6 | Oct 2023 – Mar 2024 | 56 µg/l 25 Mar 2024 |
| Zinc : BLM Bioavailable 4822 | River water | 6 | Oct 2023 – Mar 2024 | 17 µg/l 25 Mar 2024 |
| Zinc, Dissolved 3408 | River water | 6 | Oct 2023 – Mar 2024 | 32 µg/l 25 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.