River Derwent St Marys Bridge Derby
EA name: RIVER DERWENT ST MARYS BRIDGE DERBY (also listed as “RIVER DERWENT AT ST MARYS BRIDGE DERBY”)
Environment Agency sampling point MD-49697380 · 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
- 10 Sep 2026, 11:0521 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 38 since 17 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 435368, 336769As 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, 11 m from the line.
- Next gauge downstream
- Church Wilne On the River Derwent · 18 km along the riverBeside Derby City: too close to say above or below.
- Nearest gauge upstream
- Duffield On the River Ecclesbourne · 14 km along the riverSmithy Houses On the Bottle Brook · 14 km along the riverWingfield Park On the River Amber · 26 km along the river
- Why it was sampled
- Monitoring (national agency policy) (38 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.9%
Sampled 10 Sep 2026, 21 days ago · 38 results banked
Every result (38)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 11:05 | 95.9 | 95.9% |
| 11 Aug 2026, 12:03 | 102.1 | 102.1% |
| 23 Jun 2026, 11:25 | 97 | 97% |
| 19 May 2026, 11:29 | 96.3 | 96.3% |
| 13 May 2026, 09:51 | 97.5 | 97.5% |
| 17 Apr 2026, 08:59 | 97 | 97% |
| 26 Mar 2026, 10:31 | 100.1 | 100.1% |
| 2 Mar 2026, 10:46 | 99.9 | 99.9% |
| 16 Feb 2026, 11:47 | 100.5 | 100.5% |
| 12 Feb 2026, 12:09 | 97.7 | 97.7% |
| 20 Jan 2026, 12:03 | 99.8 | 99.8% |
| 9 Jan 2026, 10:39 | 100.2 | 100.2% |
| 16 Dec 2025, 11:13 | 100.4 | 100.4% |
| 4 Dec 2025, 10:02 | 100.2 | 100.2% |
| 25 Nov 2025, 10:23 | 99 | 99% |
| 11 Nov 2025, 12:49 | 94.9 | 94.9% |
| 15 Oct 2025, 11:23 | 95.7 | 95.7% |
| 27 Aug 2025, 09:37 | 96.4 | 96.4% |
| 10 Apr 2025, 07:54 | 100.4 | 100.4% |
| 14 Mar 2025, 10:45 | 98.6 | 98.6% |
| 5 Feb 2025, 10:22 | 100.8 | 100.8% |
| 22 Jan 2025, 08:59 | 101.7 | 101.7% |
| 5 Dec 2024, 10:45 | 100.1 | 100.1% |
| 20 Nov 2024, 11:17 | 93.4 | 93.4% |
| 21 Oct 2024, 11:46 | 98.1 | 98.1% |
| 18 Sep 2024, 10:53 | 97.2 | 97.2% |
| 21 Aug 2024, 13:12 | 98.9 | 98.9% |
| 17 Jul 2024, 09:41 | 97.2 | 97.2% |
| 24 Jun 2024, 08:48 | 94.4 | 94.4% |
| 22 May 2024, 14:05 | 95.1 | 95.1% |
| 15 Apr 2024, 12:43 | 99.5 | 99.5% |
| 4 Apr 2024, 11:59 | 99.2 | 99.2% |
| 20 Mar 2024, 13:36 | 100.2 | 100.2% |
| 2 Feb 2024, 13:13 | 101.5 | 101.5% |
| 15 Jan 2024, 13:39 | 98.8 | 98.8% |
| 6 Dec 2023, 12:14 | 99.4 | 99.4% |
| 21 Nov 2023, 12:05 | 100.9 | 100.9% |
| 17 Oct 2023, 10:39 | 100.3 | 100.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.94 mg/l
Sampled 23 Jun 2026, 3 months ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Jun 2026, 11:25 | 8.94 | 8.94 mg/l |
| 19 May 2026, 11:29 | 10.4 | 10.4 mg/l |
| 13 May 2026, 09:51 | 10.8 | 10.8 mg/l |
| 17 Apr 2026, 08:59 | 10.7 | 10.7 mg/l |
| 26 Mar 2026, 10:31 | 12 | 12 mg/l |
| 2 Mar 2026, 10:46 | 11.6 | 11.6 mg/l |
| 16 Feb 2026, 11:47 | 12.4 | 12.4 mg/l |
| 12 Feb 2026, 12:09 | 11.6 | 11.6 mg/l |
| 20 Jan 2026, 12:03 | 11.9 | 11.9 mg/l |
| 9 Jan 2026, 10:39 | 13.1 | 13.1 mg/l |
| 16 Dec 2025, 11:13 | 11.8 | 11.8 mg/l |
| 4 Dec 2025, 10:02 | 12 | 12 mg/l |
| 25 Nov 2025, 10:23 | 12 | 12 mg/l |
| 11 Nov 2025, 12:49 | 10.5 | 10.5 mg/l |
| 15 Oct 2025, 11:23 | 10.4 | 10.4 mg/l |
| 27 Aug 2025, 09:37 | 9.29 | 9.29 mg/l |
| 10 Apr 2025, 07:54 | 11.4 | 11.4 mg/l |
| 14 Mar 2025, 10:45 | 12.1 | 12.1 mg/l |
| 5 Feb 2025, 10:22 | 12.4 | 12.4 mg/l |
| 22 Jan 2025, 08:59 | 12.7 | 12.7 mg/l |
| 5 Dec 2024, 10:45 | 11.7 | 11.7 mg/l |
| 20 Nov 2024, 11:17 | 11.8 | 11.8 mg/l |
| 21 Oct 2024, 11:46 | 10.8 | 10.8 mg/l |
| 18 Sep 2024, 10:53 | 10.1 | 10.1 mg/l |
| 21 Aug 2024, 13:12 | 9.88 | 9.88 mg/l |
| 17 Jul 2024, 09:41 | 9.84 | 9.84 mg/l |
| 24 Jun 2024, 08:48 | 9.1 | 9.1 mg/l |
| 22 May 2024, 14:05 | 9.78 | 9.78 mg/l |
| 15 Apr 2024, 12:43 | 11.3 | 11.3 mg/l |
| 4 Apr 2024, 11:59 | 11.2 | 11.2 mg/l |
| 20 Mar 2024, 13:36 | 11.1 | 11.1 mg/l |
| 2 Feb 2024, 13:13 | 12.1 | 12.1 mg/l |
| 15 Jan 2024, 13:39 | 12.5 | 12.5 mg/l |
| 6 Dec 2023, 12:14 | 12.6 | 12.6 mg/l |
| 21 Nov 2023, 12:05 | 11.5 | 11.5 mg/l |
| 17 Oct 2023, 10:39 | 11.5 | 11.5 mg/l |
Water temperature
code 0076 · °C
15.3 °C
Sampled 10 Sep 2026, 21 days ago · 38 results banked
Every result (38)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 11:05 | 15.3 | 15.3 °C |
| 11 Aug 2026, 12:03 | 18 | 18 °C |
| 23 Jun 2026, 11:25 | 19.2 | 19.2 °C |
| 19 May 2026, 11:29 | 11.9 | 11.9 °C |
| 13 May 2026, 09:51 | 10.9 | 10.9 °C |
| 17 Apr 2026, 08:59 | 11 | 11 °C |
| 26 Mar 2026, 10:31 | 7.5 | 7.5 °C |
| 2 Mar 2026, 10:46 | 8.7 | 8.7 °C |
| 16 Feb 2026, 11:47 | 6.3 | 6.3 °C |
| 12 Feb 2026, 12:09 | 7.8 | 7.8 °C |
| 20 Jan 2026, 12:03 | 7.7 | 7.7 °C |
| 9 Jan 2026, 10:39 | 4 | 4 °C |
| 16 Dec 2025, 11:13 | 8.4 | 8.4 °C |
| 4 Dec 2025, 10:02 | 7.5 | 7.5 °C |
| 25 Nov 2025, 10:23 | 7 | 7 °C |
| 11 Nov 2025, 12:49 | 10.6 | 10.6 °C |
| 15 Oct 2025, 11:23 | 11.5 | 11.5 °C |
| 27 Aug 2025, 09:37 | 17 | 17 °C |
| 10 Apr 2025, 07:54 | 9.8 | 9.8 °C |
| 14 Mar 2025, 10:45 | 6.6 | 6.6 °C |
| 5 Feb 2025, 10:22 | 6.3 | 6.3 °C |
| 22 Jan 2025, 08:59 | 5.8 | 5.8 °C |
| 5 Dec 2024, 10:45 | 8.5 | 8.5 °C |
| 20 Nov 2024, 11:17 | 5.3 | 5.3 °C |
| 21 Oct 2024, 11:46 | 11.1 | 11.1 °C |
| 18 Sep 2024, 10:53 | 13.3 | 13.3 °C |
| 21 Aug 2024, 13:12 | 15.3 | 15.3 °C |
| 17 Jul 2024, 09:41 | 14.7 | 14.7 °C |
| 24 Jun 2024, 08:48 | 17 | 17 °C |
| 22 May 2024, 14:05 | 14 | 14 °C |
| 15 Apr 2024, 12:43 | 9.6 | 9.6 °C |
| 4 Apr 2024, 11:59 | 9.9 | 9.9 °C |
| 20 Mar 2024, 13:36 | 10.9 | 10.9 °C |
| 2 Feb 2024, 13:13 | 7.6 | 7.6 °C |
| 15 Jan 2024, 13:39 | 5.3 | 5.3 °C |
| 6 Dec 2023, 12:14 | 5.3 | 5.3 °C |
| 21 Nov 2023, 12:05 | 9.6 | 9.6 °C |
| 17 Oct 2023, 10:39 | 9.2 | 9.2 °C |
pH
code 0061
8.2
Sampled 10 Sep 2026, 21 days ago · 38 results banked
Every result (38)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 11:05 | 8.2 | 8.2 |
| 11 Aug 2026, 12:03 | 8.3 | 8.3 |
| 23 Jun 2026, 11:25 | 8.21 | 8.21 |
| 19 May 2026, 11:29 | 8.18 | 8.18 |
| 13 May 2026, 09:51 | 8.27 | 8.27 |
| 17 Apr 2026, 08:59 | 8.16 | 8.16 |
| 26 Mar 2026, 10:31 | 8.23 | 8.23 |
| 2 Mar 2026, 10:46 | 8.15 | 8.15 |
| 16 Feb 2026, 11:47 | 8.13 | 8.13 |
| 12 Feb 2026, 12:09 | 8.17 | 8.17 |
| 20 Jan 2026, 12:03 | 8.09 | 8.09 |
| 9 Jan 2026, 10:39 | 8.14 | 8.14 |
| 16 Dec 2025, 11:13 | 8.08 | 8.08 |
| 4 Dec 2025, 10:02 | 8.23 | 8.23 |
| 25 Nov 2025, 10:23 | 8.07 | 8.07 |
| 11 Nov 2025, 12:49 | 8.05 | 8.05 |
| 15 Oct 2025, 11:23 | 8.11 | 8.11 |
| 27 Aug 2025, 09:37 | 8.2 | 8.2 |
| 10 Apr 2025, 07:54 | 8.57 | 8.57 |
| 14 Mar 2025, 10:45 | 8.27 | 8.27 |
| 5 Feb 2025, 10:22 | 8.27 | 8.27 |
| 22 Jan 2025, 08:59 | 8.2 | 8.2 |
| 5 Dec 2024, 10:45 | 8.02 | 8.02 |
| 20 Nov 2024, 11:17 | 8.11 | 8.11 |
| 21 Oct 2024, 11:46 | 8.08 | 8.08 |
| 18 Sep 2024, 10:53 | 8.18 | 8.18 |
| 21 Aug 2024, 13:12 | 8.16 | 8.16 |
| 17 Jul 2024, 09:41 | 8.02 | 8.02 |
| 24 Jun 2024, 08:48 | 8.13 | 8.13 |
| 22 May 2024, 14:05 | 7.9 | 7.9 |
| 15 Apr 2024, 12:43 | 8.27 | 8.27 |
| 4 Apr 2024, 11:59 | 8.2 | 8.2 |
| 20 Mar 2024, 13:36 | 8.16 | 8.16 |
| 2 Feb 2024, 13:13 | 8.17 | 8.17 |
| 15 Jan 2024, 13:39 | 8.19 | 8.19 |
| 6 Dec 2023, 12:14 | 7.89 | 7.89 |
| 21 Nov 2023, 12:05 | 8.11 | 8.11 |
| 17 Oct 2023, 10:39 | 8.16 | 8.16 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.078 mg/l
Sampled 23 Jun 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Jun 2026, 11:25 | 0.078 | 0.078 mg/l |
| 19 May 2026, 11:29 | 0.16 | 0.16 mg/l |
| 13 May 2026, 09:51 | 0.052 | 0.052 mg/l |
| 17 Apr 2026, 08:59 | 0.045 | 0.045 mg/l |
| 26 Mar 2026, 10:31 | 0.043 | 0.043 mg/l |
| 2 Mar 2026, 10:46 | 0.044 | 0.044 mg/l |
| 16 Feb 2026, 11:47 | 0.05 | 0.05 mg/l |
| 12 Feb 2026, 12:09 | 0.042 | 0.042 mg/l |
| 20 Jan 2026, 12:03 | 0.074 | 0.074 mg/l |
| 9 Jan 2026, 10:39 | 0.16 | 0.16 mg/l |
| 16 Dec 2025, 11:13 | 0.071 | 0.071 mg/l |
| 4 Dec 2025, 10:02 | 0.031 | 0.031 mg/l |
| 25 Nov 2025, 10:23 | 0.045 | 0.045 mg/l |
| 11 Nov 2025, 12:49 | 0.095 | 0.095 mg/l |
| 14 Mar 2025, 10:45 | 0.078 | 0.078 mg/l |
| 5 Feb 2025, 10:22 | 0.073 | 0.073 mg/l |
| 22 Jan 2025, 08:59 | 0.081 | 0.081 mg/l |
| 5 Dec 2024, 10:45 | 0.097 | 0.097 mg/l |
| 20 Nov 2024, 11:17 | 0.12 | 0.12 mg/l |
| 21 Oct 2024, 11:46 | 0.049 | 0.049 mg/l |
| 18 Sep 2024, 10:53 | 0.048 | 0.048 mg/l |
| 21 Aug 2024, 13:12 | 0.059 | 0.059 mg/l |
| 17 Jul 2024, 09:41 | 0.096 | 0.096 mg/l |
| 24 Jun 2024, 08:48 | 0.056 | 0.056 mg/l |
| 22 May 2024, 14:05 | 0.24 | 0.24 mg/l |
| 15 Apr 2024, 12:43 | 0.064 | 0.064 mg/l |
| 20 Mar 2024, 13:36 | 0.08 | 0.08 mg/l |
| 15 Jan 2024, 13:39 | 0.086 | 0.086 mg/l |
| 6 Dec 2023, 12:14 | 0.066 | 0.066 mg/l |
| 21 Nov 2023, 12:05 | 0.034 | 0.034 mg/l |
| 17 Oct 2023, 10:39 | 0.056 | 0.056 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.97 mg/l
Sampled 23 Jun 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Jun 2026, 11:25 | 2.97 | 2.97 mg/l |
| 19 May 2026, 11:29 | 3.16 | 3.16 mg/l |
| 13 May 2026, 09:51 | 3.27 | 3.27 mg/l |
| 17 Apr 2026, 08:59 | 3.18 | 3.18 mg/l |
| 26 Mar 2026, 10:31 | 2.59 | 2.59 mg/l |
| 2 Mar 2026, 10:46 | 3.19 | 3.19 mg/l |
| 16 Feb 2026, 11:47 | 3.09 | 3.09 mg/l |
| 12 Feb 2026, 12:09 | 2.69 | 2.69 mg/l |
| 20 Jan 2026, 12:03 | 3.18 | 3.18 mg/l |
| 9 Jan 2026, 10:39 | 3.47 | 3.47 mg/l |
| 16 Dec 2025, 11:13 | 2.49 | 2.49 mg/l |
| 4 Dec 2025, 10:02 | 3.19 | 3.19 mg/l |
| 25 Nov 2025, 10:23 | 3.09 | 3.09 mg/l |
| 11 Nov 2025, 12:49 | 3.88 | 3.88 mg/l |
| 14 Mar 2025, 10:45 | 3.48 | 3.48 mg/l |
| 5 Feb 2025, 10:22 | 3.28 | 3.28 mg/l |
| 22 Jan 2025, 08:59 | 2.89 | 2.89 mg/l |
| 5 Dec 2024, 10:45 | 2.88 | 2.88 mg/l |
| 20 Nov 2024, 11:17 | 3.46 | 3.46 mg/l |
| 21 Oct 2024, 11:46 | 2.58 | 2.58 mg/l |
| 18 Sep 2024, 10:53 | 3.47 | 3.47 mg/l |
| 21 Aug 2024, 13:12 | 3.47 | 3.47 mg/l |
| 17 Jul 2024, 09:41 | 2.77 | 2.77 mg/l |
| 24 Jun 2024, 08:48 | 3.08 | 3.08 mg/l |
| 22 May 2024, 14:05 | 3.36 | 3.36 mg/l |
| 15 Apr 2024, 12:43 | 2.89 | 2.89 mg/l |
| 20 Mar 2024, 13:36 | 2.98 | 2.98 mg/l |
| 15 Jan 2024, 13:39 | 3.58 | 3.58 mg/l |
| 6 Dec 2023, 12:14 | 2.99 | 2.99 mg/l |
| 21 Nov 2023, 12:05 | 2.19 | 2.19 mg/l |
| 17 Oct 2023, 10:39 | 2.98 | 2.98 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.091 mg/l
Sampled 23 Jun 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Jun 2026, 11:25 | 0.091 | 0.091 mg/l |
| 19 May 2026, 11:29 | 0.063 | 0.063 mg/l |
| 13 May 2026, 09:51 | 0.04 | 0.04 mg/l |
| 17 Apr 2026, 08:59 | 0.055 | 0.055 mg/l |
| 26 Mar 2026, 10:31 | 0.039 | 0.039 mg/l |
| 2 Mar 2026, 10:46 | 0.044 | 0.044 mg/l |
| 16 Feb 2026, 11:47 | 0.046 | 0.046 mg/l |
| 12 Feb 2026, 12:09 | 0.044 | 0.044 mg/l |
| 20 Jan 2026, 12:03 | 0.063 | 0.063 mg/l |
| 9 Jan 2026, 10:39 | 0.07 | 0.07 mg/l |
| 16 Dec 2025, 11:13 | 0.066 | 0.066 mg/l |
| 4 Dec 2025, 10:02 | 0.042 | 0.042 mg/l |
| 25 Nov 2025, 10:23 | 0.049 | 0.049 mg/l |
| 11 Nov 2025, 12:49 | 0.14 | 0.14 mg/l |
| 14 Mar 2025, 10:45 | 0.1 | 0.1 mg/l |
| 5 Feb 2025, 10:22 | 0.06 | 0.06 mg/l |
| 22 Jan 2025, 08:59 | 0.063 | 0.063 mg/l |
| 5 Dec 2024, 10:45 | 0.097 | 0.097 mg/l |
| 20 Nov 2024, 11:17 | 0.65 | 0.65 mg/l |
| 21 Oct 2024, 11:46 | 0.074 | 0.074 mg/l |
| 18 Sep 2024, 10:53 | 0.16 | 0.16 mg/l |
| 21 Aug 2024, 13:12 | 0.12 | 0.12 mg/l |
| 17 Jul 2024, 09:41 | 0.12 | 0.12 mg/l |
| 24 Jun 2024, 08:48 | 0.11 | 0.11 mg/l |
| 22 May 2024, 14:05 | 0.11 | 0.11 mg/l |
| 15 Apr 2024, 12:43 | 0.056 | 0.056 mg/l |
| 20 Mar 2024, 13:36 | 0.061 | 0.061 mg/l |
| 15 Jan 2024, 13:39 | 0.055 | 0.055 mg/l |
| 6 Dec 2023, 12:14 | 0.057 | 0.057 mg/l |
| 21 Nov 2023, 12:05 | 0.039 | 0.039 mg/l |
| 17 Oct 2023, 10:39 | 0.094 | 0.094 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
609 µS/cm
Sampled 10 Sep 2026, 21 days ago · 38 results banked
Every result (38)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 11:05 | 609 | 609 µS/cm |
| 11 Aug 2026, 12:03 | 603 | 603 µS/cm |
| 23 Jun 2026, 11:25 | 620 | 620 µS/cm |
| 19 May 2026, 11:29 | 579 | 579 µS/cm |
| 13 May 2026, 09:51 | 605 | 605 µS/cm |
| 17 Apr 2026, 08:59 | 640 | 640 µS/cm |
| 26 Mar 2026, 10:31 | 435 | 435 µS/cm |
| 2 Mar 2026, 10:46 | 433 | 433 µS/cm |
| 16 Feb 2026, 11:47 | 409 | 409 µS/cm |
| 12 Feb 2026, 12:09 | 349 | 349 µS/cm |
| 20 Jan 2026, 12:03 | 447 | 447 µS/cm |
| 9 Jan 2026, 10:39 | 622 | 622 µS/cm |
| 16 Dec 2025, 11:13 | 326 | 326 µS/cm |
| 4 Dec 2025, 10:02 | 434 | 434 µS/cm |
| 25 Nov 2025, 10:23 | 430 | 430 µS/cm |
| 11 Nov 2025, 12:49 | 533 | 533 µS/cm |
| 15 Oct 2025, 11:23 | 630 | 630 µS/cm |
| 27 Aug 2025, 09:37 | 601 | 601 µS/cm |
| 10 Apr 2025, 07:54 | 666 | 666 µS/cm |
| 14 Mar 2025, 10:45 | 599 | 599 µS/cm |
| 5 Feb 2025, 10:22 | 504 | 504 µS/cm |
| 22 Jan 2025, 08:59 | 476 | 476 µS/cm |
| 5 Dec 2024, 10:45 | 474 | 474 µS/cm |
| 20 Nov 2024, 11:17 | 683 | 683 µS/cm |
| 21 Oct 2024, 11:46 | 447 | 447 µS/cm |
| 18 Sep 2024, 10:53 | 655 | 655 µS/cm |
| 21 Aug 2024, 13:12 | 627 | 627 µS/cm |
| 17 Jul 2024, 09:41 | 396 | 396 µS/cm |
| 24 Jun 2024, 08:48 | 599 | 599 µS/cm |
| 22 May 2024, 14:05 | 429 | 429 µS/cm |
| 15 Apr 2024, 12:43 | 451 | 451 µS/cm |
| 4 Apr 2024, 11:59 | 442 | 442 µS/cm |
| 20 Mar 2024, 13:36 | 451 | 451 µS/cm |
| 2 Feb 2024, 13:13 | 505 | 505 µS/cm |
| 15 Jan 2024, 13:39 | 538 | 538 µS/cm |
| 6 Dec 2023, 12:14 | 369 | 369 µS/cm |
| 21 Nov 2023, 12:05 | 327 | 327 µS/cm |
| 17 Oct 2023, 10:39 | 501 | 501 µS/cm |
Everything measured here
85 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 85 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 38 | Oct 2023 – Sep 2026 | 95.9% 10 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 36 | Oct 2023 – Jun 2026 | 8.94 mg/l 23 Jun 2026 |
| Temperature of Water 0076 | River water | 38 | Oct 2023 – Sep 2026 | 15.3 °C 10 Sep 2026 |
| pH 0061 | River water | 38 | Oct 2023 – Sep 2026 | 8.2 10 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Jun 2026 | 0.078 mg/l 23 Jun 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – Jun 2026 | 2.97 mg/l 23 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – Jun 2026 | 0.091 mg/l 23 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 38 | Oct 2023 – Sep 2026 | 609 µS/cm 10 Sep 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 4 | Apr 2024 – Mar 2025 | below 0.004 µg/l 14 Mar 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 4 | Apr 2024 – Mar 2025 | below 0.005 µg/l 14 Mar 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Jun 2026 | 170 mg/l 23 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Jun 2026 | 0.00278 mg/l 23 Jun 2026 |
| Barium, Dissolved 9446 | River water | 2 | Aug 2026 – Sep 2026 | 120 µg/l 10 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 27 | Mar 2024 – Jun 2026 | below 1 mg/l 23 Jun 2026 |
| Boron, Dissolved 9447 | River water | 2 | Aug 2026 – Sep 2026 | below 100 µg/l 10 Sep 2026 |
| Cadmium 0108 | River water | 2 | Aug 2026 – Sep 2026 | 0.35 µg/l 10 Sep 2026 |
| Cadmium, Dissolved 0106 | River water | 2 | Aug 2026 – Sep 2026 | 0.12 µg/l 10 Sep 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Aug 2026 – Sep 2026 | 62 mg/l 10 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Aug 2026 – Sep 2026 | 2.8 mg/l 10 Sep 2026 |
| Copper 6452 | River water | 2 | Aug 2026 – Sep 2026 | 2 µg/l 10 Sep 2026 |
| Copper, Dissolved 6450 | River water | 2 | Aug 2026 – Sep 2026 | 2.2 µg/l 10 Sep 2026 |
| Hardness, Total as CaCO3 0158 | River water | 2 | Aug 2026 – Sep 2026 | 208 mg/l 10 Sep 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| Iron, Dissolved 6460 | River water | 2 | Aug 2026 – Sep 2026 | 73 µg/l 10 Sep 2026 |
| Lead 0050 | River water | 2 | Aug 2026 – Sep 2026 | 11 µg/l 10 Sep 2026 |
| Lead, Dissolved 0052 | River water | 2 | Aug 2026 – Sep 2026 | 2.2 µg/l 10 Sep 2026 |
| Lithium, Dissolved 4201 | River water | 2 | Aug 2026 – Sep 2026 | below 100 µg/l 10 Sep 2026 |
| Magnesium, Dissolved 0235 | River water | 2 | Aug 2026 – Sep 2026 | 13 mg/l 10 Sep 2026 |
| Manganese, Dissolved 6458 | River water | 2 | Aug 2026 – Sep 2026 | 50 µg/l 10 Sep 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| Nickel 6462 | River water | 2 | Aug 2026 – Sep 2026 | 2.2 µg/l 10 Sep 2026 |
| Nickel, Dissolved 3410 | River water | 2 | Aug 2026 – Sep 2026 | 1.9 µg/l 10 Sep 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Jun 2026 | 0.028 mg/l 23 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – Jun 2026 | 3 mg/l 23 Jun 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 4 | Apr 2024 – Mar 2025 | 0.0012 µg/l 14 Mar 2025 |
| Perfluorobutanoic acid 2995 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| Perfluorodecanoic acid 8892 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 4 | Apr 2024 – Mar 2025 | below 0.005 µg/l 14 Mar 2025 |
| Perfluorododecanoic acid 8894 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoroheptanoic acid 8889 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorohexanoic acid 8888 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorononanoic acid 8891 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 4 | Apr 2024 – Mar 2025 | 0.0006 µg/l 14 Mar 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluorooctanoic acid 8890 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 4 | Apr 2024 – Mar 2025 | below 0.0005 µg/l 14 Mar 2025 |
| Perfluoropentanoic acid 8887 | River water | 4 | Apr 2024 – Mar 2025 | below 0.001 µg/l 14 Mar 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 4 | Apr 2024 – Mar 2025 | below 0.006 µg/l 14 Mar 2025 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Jul 2024 – Mar 2025 | below 0.005 µg/l 14 Mar 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 4 | Apr 2024 – Mar 2025 | below 0.004 µg/l 14 Mar 2025 |
| Perfluoroundecanoic acid 8893 | River water | 4 | Apr 2024 – Mar 2025 | below 0.002 µg/l 14 Mar 2025 |
| pH : In Situ 3169 | River water | 2 | Aug 2026 – Sep 2026 | 7.94 10 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 2 | Aug 2026 – Sep 2026 | 3.8 mg/l 10 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 2 | Aug 2026 – Sep 2026 | 43 mg/l 10 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 2 | Aug 2026 – Sep 2026 | 7.8 mg/l 10 Sep 2026 |
| Strontium, Filtered 6693 | River water | 2 | Aug 2026 – Sep 2026 | 320 µg/l 10 Sep 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 2 | Aug 2026 – Sep 2026 | 72 mg/l 10 Sep 2026 |
| Zinc 6455 | River water | 2 | Aug 2026 – Sep 2026 | 43 µg/l 10 Sep 2026 |
| Zinc, Dissolved 3408 | River water | 2 | Aug 2026 – Sep 2026 | 25 µg/l 10 Sep 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.