River Tone at Knapp Bridge
EA name: RIVER TONE AT KNAPP BRIDGE (also listed as “R TONE KNAPP BRIDGE”)
Environment Agency sampling point SW-E1008100 · 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
- 12 Aug 2026, 11:2850 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 since 11 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)
- Where
- National Grid 330125, 126061As published, to the nearest 1 m. Open in a map
- River, by its own name
- Tone
- River, by the map
- River TonePlaced on the river its name gives, 32 m from the line.
- Next gauge downstream
- Currymoor Pumping Station On the River Tone · 5.8 km along the river
- Nearest gauge upstream
- Bathpool Outfall On the River Tone · 6.6 km along the river
- Why it was sampled
- Monitoring (UK govt policy - not GQA or RE) (24 samples)
Environmental monitoring statutory (EU directives) (7 samples)
Monitoring (national agency policy) (4 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
80.3%
Sampled 12 Aug 2026, 50 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 80.3 | 80.3% |
| 3 Jul 2026, 08:34 | 85.2 | 85.2% |
| 17 Jun 2026, 10:38 | 84.5 | 84.5% |
| 21 May 2026, 12:42 | 103.8 | 103.8% |
| 13 May 2026, 14:25 | 111.3 | 111.3% |
| 13 Apr 2026, 11:30 | 106.6 | 106.6% |
| 7 Apr 2026, 10:02 | 107.6 | 107.6% |
| 26 Mar 2026, 09:08 | 97.5 | 97.5% |
| 26 Mar 2026, 09:07 | 97.5 | 97.5% |
| 12 Jan 2026, 09:03 | 97.6 | 97.6% |
| 1 Dec 2025, 13:08 | 99.4 | 99.4% |
| 25 Nov 2025, 09:51 | 95.3 | 95.3% |
| 6 Nov 2025, 08:42 | 82.3 | 82.3% |
| 13 Oct 2025, 09:31 | 73.4 | 73.4% |
| 29 Sep 2025, 14:49 | 87.1 | 87.1% |
| 1 Aug 2025, 10:39 | 76.8 | 76.8% |
| 11 Jul 2025, 13:05 | 108.6 | 108.6% |
| 20 Jun 2025, 09:37 | 85.3 | 85.3% |
| 3 Apr 2025, 10:53 | 113.3 | 113.3% |
| 20 Mar 2025, 10:12 | 98.2 | 98.2% |
| 5 Mar 2025, 13:28 | 99.6 | 99.6% |
| 17 Feb 2025, 10:11 | 96.2 | 96.2% |
| 11 Feb 2025, 10:14 | 95.3 | 95.3% |
| 13 Dec 2024, 09:11 | 95.7 | 95.7% |
| 21 Nov 2024, 10:18 | 95.8 | 95.8% |
| 22 Oct 2024, 11:51 | 89.9 | 89.9% |
| 19 Aug 2024, 11:36 | 80.2 | 80.2% |
| 15 Jul 2024, 09:31 | 83.8 | 83.8% |
| 21 Jun 2024, 12:54 | 119 | 119% |
| 14 Mar 2024, 14:01 | 97.1 | 97.1% |
| 29 Jan 2024, 09:21 | 98.7 | 98.7% |
| 24 Oct 2023, 13:46 | 92.6 | 92.6% |
| 11 Oct 2023, 10:02 | 86.9 | 86.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.03 mg/l
Sampled 12 Aug 2026, 50 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 7.03 | 7.03 mg/l |
| 3 Jul 2026, 08:34 | 7.83 | 7.83 mg/l |
| 17 Jun 2026, 10:38 | 7.88 | 7.88 mg/l |
| 21 May 2026, 12:42 | 10.3 | 10.3 mg/l |
| 13 May 2026, 14:25 | 11.5 | 11.5 mg/l |
| 13 Apr 2026, 11:30 | 11.7 | 11.7 mg/l |
| 7 Apr 2026, 10:02 | 12 | 12 mg/l |
| 26 Mar 2026, 09:08 | 11.3 | 11.3 mg/l |
| 26 Mar 2026, 09:07 | 11.3 | 11.3 mg/l |
| 12 Jan 2026, 09:03 | 11.6 | 11.6 mg/l |
| 1 Dec 2025, 13:08 | 11.1 | 11.1 mg/l |
| 25 Nov 2025, 09:51 | 11.4 | 11.4 mg/l |
| 6 Nov 2025, 08:42 | 8.57 | 8.57 mg/l |
| 13 Oct 2025, 09:31 | 7.66 | 7.66 mg/l |
| 29 Sep 2025, 14:49 | 8.78 | 8.78 mg/l |
| 1 Aug 2025, 10:39 | 7.04 | 7.04 mg/l |
| 11 Jul 2025, 13:05 | 9.17 | 9.17 mg/l |
| 20 Jun 2025, 09:37 | 7.66 | 7.66 mg/l |
| 3 Apr 2025, 10:53 | 12.4 | 12.4 mg/l |
| 20 Mar 2025, 10:12 | 11.4 | 11.4 mg/l |
| 5 Mar 2025, 13:28 | 11.7 | 11.7 mg/l |
| 17 Feb 2025, 10:11 | 12 | 12 mg/l |
| 11 Feb 2025, 10:14 | 11.8 | 11.8 mg/l |
| 13 Dec 2024, 09:11 | 11.3 | 11.3 mg/l |
| 21 Nov 2024, 10:18 | 11.9 | 11.9 mg/l |
| 22 Oct 2024, 11:51 | 9.51 | 9.51 mg/l |
| 19 Aug 2024, 11:36 | 7.62 | 7.62 mg/l |
| 15 Jul 2024, 09:31 | 8.37 | 8.37 mg/l |
| 21 Jun 2024, 12:54 | 11.2 | 11.2 mg/l |
| 14 Mar 2024, 14:01 | 10.6 | 10.6 mg/l |
| 29 Jan 2024, 09:21 | 11.3 | 11.3 mg/l |
| 24 Oct 2023, 13:46 | 9.78 | 9.78 mg/l |
| 11 Oct 2023, 10:02 | 8.74 | 8.74 mg/l |
Water temperature
code 0076 · °C
21.8 °C
Sampled 12 Aug 2026, 50 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 21.8 | 21.8 °C |
| 3 Jul 2026, 08:34 | 19.3 | 19.3 °C |
| 17 Jun 2026, 10:38 | 18.6 | 18.6 °C |
| 21 May 2026, 12:42 | 15.5 | 15.5 °C |
| 13 May 2026, 14:25 | 13.8 | 13.8 °C |
| 13 Apr 2026, 11:30 | 11.2 | 11.2 °C |
| 7 Apr 2026, 10:02 | 10.5 | 10.5 °C |
| 26 Mar 2026, 09:08 | 8.7 | 8.7 °C |
| 26 Mar 2026, 09:07 | 8.7 | 8.7 °C |
| 12 Jan 2026, 09:03 | 7.9 | 7.9 °C |
| 1 Dec 2025, 13:08 | 10.5 | 10.5 °C |
| 25 Nov 2025, 09:51 | 7.7 | 7.7 °C |
| 6 Nov 2025, 08:42 | 13.4 | 13.4 °C |
| 13 Oct 2025, 09:31 | 13.3 | 13.3 °C |
| 29 Sep 2025, 14:49 | 14.9 | 14.9 °C |
| 1 Aug 2025, 10:39 | 19.5 | 19.5 °C |
| 11 Jul 2025, 13:05 | 23.7 | 23.7 °C |
| 20 Jun 2025, 09:37 | 20.5 | 20.5 °C |
| 3 Apr 2025, 10:53 | 11.4 | 11.4 °C |
| 20 Mar 2025, 10:12 | 8.8 | 8.8 °C |
| 5 Mar 2025, 13:28 | 8.1 | 8.1 °C |
| 17 Feb 2025, 10:11 | 5.9 | 5.9 °C |
| 11 Feb 2025, 10:14 | 6 | 6 °C |
| 13 Dec 2024, 09:11 | 8 | 8 °C |
| 21 Nov 2024, 10:18 | 6.1 | 6.1 °C |
| 22 Oct 2024, 11:51 | 12.7 | 12.7 °C |
| 19 Aug 2024, 11:36 | 17.7 | 17.7 °C |
| 15 Jul 2024, 09:31 | 15.3 | 15.3 °C |
| 21 Jun 2024, 12:54 | 18 | 18 °C |
| 14 Mar 2024, 14:01 | 11.4 | 11.4 °C |
| 29 Jan 2024, 09:21 | 9.5 | 9.5 °C |
| 24 Oct 2023, 13:46 | 12.8 | 12.8 °C |
| 11 Oct 2023, 10:02 | 15 | 15 °C |
pH
code 0061
7.57
Sampled 12 Aug 2026, 50 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 7.57 | 7.57 |
| 3 Jul 2026, 08:34 | 7.82 | 7.82 |
| 17 Jun 2026, 10:38 | 7.7 | 7.7 |
| 21 May 2026, 12:42 | 8.12 | 8.12 |
| 13 May 2026, 14:25 | 8.34 | 8.34 |
| 13 Apr 2026, 11:30 | 8.43 | 8.43 |
| 7 Apr 2026, 10:02 | 8.35 | 8.35 |
| 26 Mar 2026, 09:08 | 8.14 | 8.14 |
| 26 Mar 2026, 09:07 | 8.14 | 8.14 |
| 12 Jan 2026, 09:03 | 8.02 | 8.02 |
| 1 Dec 2025, 13:08 | 7.91 | 7.91 |
| 25 Nov 2025, 09:51 | 7.94 | 7.94 |
| 6 Nov 2025, 08:42 | 7.73 | 7.73 |
| 13 Oct 2025, 09:31 | 7.6 | 7.6 |
| 29 Sep 2025, 14:49 | 7.86 | 7.86 |
| 1 Aug 2025, 10:39 | 7.75 | 7.75 |
| 11 Jul 2025, 13:05 | 7.9 | 7.9 |
| 20 Jun 2025, 09:37 | 7.8 | 7.8 |
| 3 Apr 2025, 10:53 | 8.53 | 8.53 |
| 20 Mar 2025, 10:12 | 8.2 | 8.2 |
| 5 Mar 2025, 13:28 | 8.05 | 8.05 |
| 17 Feb 2025, 10:11 | 7.89 | 7.89 |
| 11 Feb 2025, 10:14 | 7.8 | 7.8 |
| 13 Dec 2024, 09:11 | 8.11 | 8.11 |
| 21 Nov 2024, 10:18 | 8.03 | 8.03 |
| 22 Oct 2024, 11:51 | 7.84 | 7.84 |
| 19 Aug 2024, 11:36 | 7.76 | 7.76 |
| 15 Jul 2024, 09:31 | 8.11 | 8.11 |
| 21 Jun 2024, 12:54 | 8.35 | 8.35 |
| 14 Mar 2024, 14:01 | 7.95 | 7.95 |
| 29 Jan 2024, 09:21 | 8.09 | 8.09 |
| 24 Oct 2023, 13:46 | 7.79 | 7.79 |
| 11 Oct 2023, 10:02 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.045 mg/l
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 0.045 | 0.045 mg/l |
| 3 Jul 2026, 08:34 | 0.031 | 0.031 mg/l |
| 17 Jun 2026, 10:38 | 0.084 | 0.084 mg/l |
| 21 May 2026, 12:42 | 0.063 | 0.063 mg/l |
| 13 May 2026, 14:25 | 0.055 | 0.055 mg/l |
| 13 Apr 2026, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Apr 2026, 10:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2026, 09:08 | 0.059 | 0.059 mg/l |
| 26 Mar 2026, 09:07 | 0.058 | 0.058 mg/l |
| 12 Jan 2026, 09:03 | 0.078 | 0.078 mg/l |
| 1 Dec 2025, 13:08 | 0.035 | 0.035 mg/l |
| 25 Nov 2025, 09:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2025, 08:42 | 0.033 | 0.033 mg/l |
| 13 Oct 2025, 09:31 | 0.059 | 0.059 mg/l |
| 29 Sep 2025, 14:49 | 0.035 | 0.035 mg/l |
| 1 Aug 2025, 10:39 | 0.041 | 0.041 mg/l |
| 11 Jul 2025, 13:05 | 0.032 | 0.032 mg/l |
| 20 Jun 2025, 09:37 | 0.064 | 0.064 mg/l |
| 20 Mar 2025, 10:12 | 0.054 | 0.054 mg/l |
| 5 Mar 2025, 13:28 | 0.12 | 0.12 mg/l |
| 17 Feb 2025, 10:11 | 0.095 | 0.095 mg/l |
| 11 Feb 2025, 10:14 | 0.1 | 0.1 mg/l |
| 13 Dec 2024, 09:11 | 0.047 | 0.047 mg/l |
| 21 Nov 2024, 10:18 | 0.044 | 0.044 mg/l |
| 22 Oct 2024, 11:51 | 0.054 | 0.054 mg/l |
| 19 Aug 2024, 11:36 | 0.037 | 0.037 mg/l |
| 15 Jul 2024, 09:31 | 0.052 | 0.052 mg/l |
| 21 Jun 2024, 12:54 | 0.036 | 0.036 mg/l |
| 14 Mar 2024, 14:01 | 0.073 | 0.073 mg/l |
| 29 Jan 2024, 09:21 | 0.082 | 0.082 mg/l |
| 24 Oct 2023, 13:46 | 0.12 | 0.12 mg/l |
| 11 Oct 2023, 10:02 | 0.033 | 0.033 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
8.63 mg/l
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 8.63 | 8.63 mg/l |
| 3 Jul 2026, 08:34 | 7.84 | 7.84 mg/l |
| 17 Jun 2026, 10:38 | 7.05 | 7.05 mg/l |
| 21 May 2026, 12:42 | 7.05 | 7.05 mg/l |
| 13 May 2026, 14:25 | 7.36 | 7.36 mg/l |
| 13 Apr 2026, 11:30 | 6.47 | 6.47 mg/l |
| 7 Apr 2026, 10:02 | 6.18 | 6.18 mg/l |
| 26 Mar 2026, 09:08 | 5.86 | 5.86 mg/l |
| 26 Mar 2026, 09:07 | 5.86 | 5.86 mg/l |
| 12 Jan 2026, 09:03 | 5.67 | 5.67 mg/l |
| 1 Dec 2025, 13:08 | 5.68 | 5.68 mg/l |
| 25 Nov 2025, 09:51 | 2.1 | 2.1 mg/l |
| 6 Nov 2025, 08:42 | 5.38 | 5.38 mg/l |
| 13 Oct 2025, 09:31 | 8.28 | 8.28 mg/l |
| 29 Sep 2025, 14:49 | 8.88 | 8.88 mg/l |
| 1 Aug 2025, 10:39 | 6.93 | 6.93 mg/l |
| 11 Jul 2025, 13:05 | 8.64 | 8.64 mg/l |
| 20 Jun 2025, 09:37 | 6.46 | 6.46 mg/l |
| 20 Mar 2025, 10:12 | 6.67 | 6.67 mg/l |
| 5 Mar 2025, 13:28 | 5.67 | 5.67 mg/l |
| 17 Feb 2025, 10:11 | 5.27 | 5.27 mg/l |
| 11 Feb 2025, 10:14 | 4.57 | 4.57 mg/l |
| 13 Dec 2024, 09:11 | 5.28 | 5.28 mg/l |
| 21 Nov 2024, 10:18 | 5.08 | 5.08 mg/l |
| 22 Oct 2024, 11:51 | 5.07 | 5.07 mg/l |
| 19 Aug 2024, 11:36 | 11 | 11 mg/l |
| 15 Jul 2024, 09:31 | 8.67 | 8.67 mg/l |
| 21 Jun 2024, 12:54 | 8.27 | 8.27 mg/l |
| 14 Mar 2024, 14:01 | 5.37 | 5.37 mg/l |
| 29 Jan 2024, 09:21 | 5.57 | 5.57 mg/l |
| 24 Oct 2023, 13:46 | 4.56 | 4.56 mg/l |
| 11 Oct 2023, 10:02 | 8.27 | 8.27 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.17 mg/l
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 0.17 | 0.17 mg/l |
| 3 Jul 2026, 08:34 | 0.14 | 0.14 mg/l |
| 17 Jun 2026, 10:38 | 0.18 | 0.18 mg/l |
| 21 May 2026, 12:42 | 0.1 | 0.1 mg/l |
| 13 May 2026, 14:25 | 0.11 | 0.11 mg/l |
| 13 Apr 2026, 11:30 | 0.07 | 0.07 mg/l |
| 7 Apr 2026, 10:02 | 0.064 | 0.064 mg/l |
| 26 Mar 2026, 09:08 | 0.094 | 0.094 mg/l |
| 26 Mar 2026, 09:07 | 0.07 | 0.07 mg/l |
| 12 Jan 2026, 09:03 | 0.09 | 0.09 mg/l |
| 1 Dec 2025, 13:08 | 0.097 | 0.097 mg/l |
| 25 Nov 2025, 09:51 | 0.11 | 0.11 mg/l |
| 6 Nov 2025, 08:42 | 0.12 | 0.12 mg/l |
| 13 Oct 2025, 09:31 | 0.13 | 0.13 mg/l |
| 29 Sep 2025, 14:49 | 0.12 | 0.12 mg/l |
| 1 Aug 2025, 10:39 | 0.15 | 0.15 mg/l |
| 11 Jul 2025, 13:05 | 0.14 | 0.14 mg/l |
| 20 Jun 2025, 09:37 | 0.14 | 0.14 mg/l |
| 20 Mar 2025, 10:12 | 0.064 | 0.064 mg/l |
| 5 Mar 2025, 13:28 | 0.071 | 0.071 mg/l |
| 17 Feb 2025, 10:11 | 0.084 | 0.084 mg/l |
| 11 Feb 2025, 10:14 | 0.12 | 0.12 mg/l |
| 13 Dec 2024, 09:11 | 0.075 | 0.075 mg/l |
| 21 Nov 2024, 10:18 | 0.13 | 0.13 mg/l |
| 22 Oct 2024, 11:51 | 0.12 | 0.12 mg/l |
| 19 Aug 2024, 11:36 | 0.22 | 0.22 mg/l |
| 15 Jul 2024, 09:31 | 0.21 | 0.21 mg/l |
| 21 Jun 2024, 12:54 | 0.16 | 0.16 mg/l |
| 14 Mar 2024, 14:01 | 0.099 | 0.099 mg/l |
| 29 Jan 2024, 09:21 | 0.099 | 0.099 mg/l |
| 24 Oct 2023, 13:46 | 0.16 | 0.16 mg/l |
| 11 Oct 2023, 10:02 | 0.18 | 0.18 mg/l |
Turbidity
code 6396 · NTU
1.4 NTU
Sampled 12 Aug 2026, 50 days ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 1.4 | 1.4 NTU |
| 3 Jul 2026, 08:34 | <1 | below 1 NTU (not detected above this) |
| 17 Jun 2026, 10:38 | <1 | below 1 NTU (not detected above this) |
| 13 May 2026, 14:25 | 2 | 2 NTU |
| 7 Apr 2026, 10:02 | 2.6 | 2.6 NTU |
| 26 Mar 2026, 09:07 | 5.2 | 5.2 NTU |
| 12 Jan 2026, 09:03 | 10 | 10 NTU |
| 1 Dec 2025, 13:08 | 9.9 | 9.9 NTU |
| 6 Nov 2025, 08:42 | 2 | 2 NTU |
| 13 Oct 2025, 09:31 | 1.1 | 1.1 NTU |
| 5 Mar 2025, 13:28 | 4.5 | 4.5 NTU |
| 14 Mar 2024, 14:01 | 12 | 12 NTU |
| 29 Jan 2024, 09:21 | 9.5 | 9.5 NTU |
| 24 Oct 2023, 13:46 | 180 | 180 NTU |
| 11 Oct 2023, 10:02 | 2.9 | 2.9 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
679 µS/cm
Sampled 12 Aug 2026, 50 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:28 | 679 | 679 µS/cm |
| 3 Jul 2026, 08:34 | 676 | 676 µS/cm |
| 17 Jun 2026, 10:38 | 662 | 662 µS/cm |
| 21 May 2026, 12:42 | 603 | 603 µS/cm |
| 13 May 2026, 14:25 | 610 | 610 µS/cm |
| 13 Apr 2026, 11:30 | 574 | 574 µS/cm |
| 7 Apr 2026, 10:02 | 576 | 576 µS/cm |
| 26 Mar 2026, 09:08 | 551 | 551 µS/cm |
| 26 Mar 2026, 09:07 | 551 | 551 µS/cm |
| 12 Jan 2026, 09:03 | 531 | 531 µS/cm |
| 1 Dec 2025, 13:08 | 496 | 496 µS/cm |
| 25 Nov 2025, 09:51 | 457 | 457 µS/cm |
| 6 Nov 2025, 08:42 | 544 | 544 µS/cm |
| 13 Oct 2025, 09:31 | 682 | 682 µS/cm |
| 29 Sep 2025, 14:49 | 682 | 682 µS/cm |
| 1 Aug 2025, 10:39 | 638 | 638 µS/cm |
| 11 Jul 2025, 13:05 | 665 | 665 µS/cm |
| 20 Jun 2025, 09:37 | 664 | 664 µS/cm |
| 3 Apr 2025, 10:53 | 601 | 601 µS/cm |
| 20 Mar 2025, 10:12 | 581 | 581 µS/cm |
| 5 Mar 2025, 13:28 | 518 | 518 µS/cm |
| 17 Feb 2025, 10:11 | 517 | 517 µS/cm |
| 11 Feb 2025, 10:14 | 474 | 474 µS/cm |
| 13 Dec 2024, 09:11 | 454 | 454 µS/cm |
| 21 Nov 2024, 10:18 | 480 | 480 µS/cm |
| 22 Oct 2024, 11:51 | 442 | 442 µS/cm |
| 19 Aug 2024, 11:36 | 671 | 671 µS/cm |
| 15 Jul 2024, 09:31 | 727 | 727 µS/cm |
| 21 Jun 2024, 12:54 | 614 | 614 µS/cm |
| 14 Mar 2024, 14:01 | 480 | 480 µS/cm |
| 29 Jan 2024, 09:21 | 514 | 514 µS/cm |
| 24 Oct 2023, 13:46 | 386 | 386 µS/cm |
| 11 Oct 2023, 10:02 | 599 | 599 µS/cm |
Everything measured here
100 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 100 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Aug 2026 | 80.3% 12 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Aug 2026 | 7.03 mg/l 12 Aug 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Aug 2026 | 21.8 °C 12 Aug 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Aug 2026 | 7.57 12 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Aug 2026 | 0.045 mg/l 12 Aug 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Aug 2026 | 8.63 mg/l 12 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Aug 2026 | 0.17 mg/l 12 Aug 2026 |
| Turbidity 6396 | River water | 15 | Oct 2023 – Aug 2026 | 1.4 NTU 12 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Aug 2026 | 679 µS/cm 12 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Oct 2024 – Oct 2024 | below 0.004 µg/l 22 Oct 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Oct 2024 – Oct 2024 | below 0.005 µg/l 22 Oct 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Aug 2026 | 180 mg/l 12 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Aug 2026 | 0.00074 mg/l 12 Aug 2026 |
| Arsenic, Dissolved 6045 | River water | 20 | Oct 2023 – Aug 2026 | 4.5 µg/l 12 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.6 mg/l 21 May 2026 |
| Boron, Dissolved 9447 | River water | 20 | Oct 2023 – Aug 2026 | below 100 µg/l 12 Aug 2026 |
| Cadmium 0108 | River water | 30 | Oct 2023 – Aug 2026 | below 0.01 µg/l 12 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 20 | Oct 2023 – Aug 2026 | below 0.01 µg/l 12 Aug 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Oct 2023 – Jan 2024 | 72 mg/l 29 Jan 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 13 | Oct 2023 – Aug 2026 | 4.1 mg/l 12 Aug 2026 |
| Chloride 0172 | River water | 15 | Oct 2023 – Aug 2026 | 38 mg/l 12 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 13 | Oct 2023 – Aug 2026 | 2.3 µg/l 12 Aug 2026 |
| Chromium, Dissolved 3409 | River water | 20 | Oct 2023 – Aug 2026 | below 0.5 µg/l 12 Aug 2026 |
| Copper 6452 | River water | 30 | Oct 2023 – Aug 2026 | 1.2 µg/l 12 Aug 2026 |
| Copper, Dissolved 6450 | River water | 20 | Oct 2023 – Aug 2026 | 1.1 µg/l 12 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 3 | Jun 2026 – Aug 2026 | 1 text result 12 Aug 2026 |
| HCH -gamma :- {Lindane} 0499 | River water | 29 | Oct 2023 – Aug 2026 | below 0.003 µg/l 12 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| Iron, Dissolved 6460 | River water | 20 | Oct 2023 – Aug 2026 | 40 µg/l 12 Aug 2026 |
| Lead 0050 | River water | 30 | Oct 2023 – Aug 2026 | 0.13 µg/l 12 Aug 2026 |
| Lead, Dissolved 0052 | River water | 20 | Oct 2023 – Aug 2026 | below 0.1 µg/l 12 Aug 2026 |
| Magnesium, Dissolved 0235 | River water | 2 | Oct 2023 – Jan 2024 | 12 mg/l 29 Jan 2024 |
| Manganese, Dissolved 6458 | River water | 20 | Oct 2023 – Aug 2026 | 33 µg/l 12 Aug 2026 |
| Mercury 0105 | River water | 30 | Oct 2023 – Aug 2026 | below 0.01 µg/l 12 Aug 2026 |
| Mercury, Dissolved 0103 | River water | 20 | Oct 2023 – Aug 2026 | below 0.01 µg/l 12 Aug 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| Nickel 6462 | River water | 27 | Mar 2024 – Aug 2026 | 1.1 µg/l 12 Aug 2026 |
| Nickel, Dissolved 3410 | River water | 20 | Oct 2023 – Aug 2026 | 1.3 µg/l 12 Aug 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Aug 2026 | 0.069 mg/l 12 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 23 | Oct 2023 – Aug 2026 | 9.7 mg/l 12 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Aug 2026 | 8.7 mg/l 12 Aug 2026 |
| PCB - 028 9768 | River water | 29 | Oct 2023 – Aug 2026 | below 0.001 µg/l 12 Aug 2026 |
| PCB - 052 9769 | River water | 28 | Oct 2023 – Aug 2026 | below 0.001 µg/l 12 Aug 2026 |
| PCB - 101 9770 | River water | 29 | Oct 2023 – Aug 2026 | below 0.001 µg/l 12 Aug 2026 |
| PCB - 118 9771 | River water | 29 | Oct 2023 – Aug 2026 | below 0.001 µg/l 12 Aug 2026 |
| PCB - 138 9772 | River water | 29 | Oct 2023 – Aug 2026 | below 0.001 µg/l 12 Aug 2026 |
| PCB - 153 9773 | River water | 29 | Oct 2023 – Aug 2026 | below 0.001 µg/l 12 Aug 2026 |
| PCB - 180 9774 | River water | 29 | Oct 2023 – Aug 2026 | below 0.002 µg/l 12 Aug 2026 |
| PCB : Total 0753 | River water | 28 | Oct 2023 – Aug 2026 | below 0.008 µg/l 12 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Oct 2024 – Oct 2024 | 0.0012 µg/l 22 Oct 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Oct 2024 – Oct 2024 | below 0.005 µg/l 22 Oct 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Oct 2024 – Oct 2024 | 0.00064 µg/l 22 Oct 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Oct 2024 – Oct 2024 | 0.00062 µg/l 22 Oct 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Oct 2024 – Oct 2024 | 0.00051 µg/l 22 Oct 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Oct 2024 – Oct 2024 | below 0.0005 µg/l 22 Oct 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Oct 2024 – Oct 2024 | below 0.001 µg/l 22 Oct 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Oct 2024 – Oct 2024 | below 0.006 µg/l 22 Oct 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Oct 2024 – Oct 2024 | below 0.005 µg/l 22 Oct 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Oct 2024 – Oct 2024 | below 0.004 µg/l 22 Oct 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Oct 2024 – Oct 2024 | below 0.002 µg/l 22 Oct 2024 |
| Phosphorus, Total as P 0348 | River water | 24 | Oct 2023 – Aug 2026 | 0.2 mg/l 12 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 20 | Oct 2023 – Aug 2026 | 9.3 mg/l 12 Aug 2026 |
| Silica, reactive as SiO2 0182 | River water | 15 | Oct 2023 – Aug 2026 | 5 mg/l 12 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 20 | Oct 2023 – Aug 2026 | 29 mg/l 12 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 25 | Oct 2023 – Aug 2026 | 3 mg/l 12 Aug 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 20 | Oct 2023 – Aug 2026 | 85 mg/l 12 Aug 2026 |
| Zinc 6455 | River water | 30 | Oct 2023 – Aug 2026 | 4.7 µg/l 12 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 20 | Oct 2023 – Aug 2026 | 4.4 µg/l 12 Aug 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.