Chew Brook above confluence with Tame
EA name: CHEW BROOK ABOVE CONFLUENCE WITH TAME (also listed as “CHEW BROOK ABOVE CONFLUENCE WITH RIVER TAME”)
Environment Agency sampling point NW-88001948 · 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
- 4 Aug 2026, 15:1858 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 5 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 399574, 404191As published, to the nearest 1 m. Open in a map
- River, by its own name
- Chew Brook
- River, by the map
- Chew BrookPlaced on the river its name gives, 14 m from the line.
- Next gauge downstream
- Waggon Road On the River Tame · 4.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.4%
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 98.4 | 98.4% |
| 1 Jul 2026, 11:35 | 99.4 | 99.4% |
| 4 Jun 2026, 13:18 | 99.6 | 99.6% |
| 8 May 2026, 11:47 | 104.4 | 104.4% |
| 24 Apr 2026, 10:43 | 106.7 | 106.7% |
| 24 Mar 2026, 12:36 | 102.2 | 102.2% |
| 9 Feb 2026, 12:47 | 103 | 103% |
| 22 Jan 2026, 13:41 | 100.3 | 100.3% |
| 1 Dec 2025, 12:12 | 100.4 | 100.4% |
| 10 Nov 2025, 11:17 | 96.4 | 96.4% |
| 6 Oct 2025, 10:39 | 98.8 | 98.8% |
| 18 Sep 2025, 12:13 | 99.7 | 99.7% |
| 26 Aug 2025, 10:07 | 98.4 | 98.4% |
| 2 Apr 2025, 11:55 | 105.7 | 105.7% |
| 19 Mar 2025, 13:01 | 108.5 | 108.5% |
| 21 Feb 2025, 12:17 | 103 | 103% |
| 30 Jan 2025, 07:35 | 103.2 | 103.2% |
| 9 Dec 2024, 13:00 | 99.5 | 99.5% |
| 14 Nov 2024, 13:36 | 98.2 | 98.2% |
| 7 Oct 2024, 11:47 | 99.4 | 99.4% |
| 4 Sep 2024, 09:10 | 97.6 | 97.6% |
| 2 Aug 2024, 09:31 | 98.9 | 98.9% |
| 5 Jul 2024, 10:10 | 100.3 | 100.3% |
| 4 Jun 2024, 11:52 | 100.6 | 100.6% |
| 8 Mar 2024, 12:58 | 102.9 | 102.9% |
| 9 Feb 2024, 10:15 | 100 | 100% |
| 26 Jan 2024, 09:34 | 99.3 | 99.3% |
| 5 Dec 2023, 11:14 | 100.6 | 100.6% |
| 7 Nov 2023, 10:05 | 101 | 101% |
| 5 Oct 2023, 14:35 | 99.9 | 99.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.83 mg/l
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 9.83 | 9.83 mg/l |
| 1 Jul 2026, 11:35 | 10.5 | 10.5 mg/l |
| 4 Jun 2026, 13:18 | 10.5 | 10.5 mg/l |
| 8 May 2026, 11:47 | 11.6 | 11.6 mg/l |
| 24 Apr 2026, 10:43 | 12.3 | 12.3 mg/l |
| 24 Mar 2026, 12:36 | 11.9 | 11.9 mg/l |
| 9 Feb 2026, 12:47 | 12.8 | 12.8 mg/l |
| 22 Jan 2026, 13:41 | 12.6 | 12.6 mg/l |
| 1 Dec 2025, 12:12 | 12 | 12 mg/l |
| 10 Nov 2025, 11:17 | 10.8 | 10.8 mg/l |
| 6 Oct 2025, 10:39 | 10.7 | 10.7 mg/l |
| 18 Sep 2025, 12:13 | 10.5 | 10.5 mg/l |
| 26 Aug 2025, 10:07 | 9.79 | 9.79 mg/l |
| 2 Apr 2025, 11:55 | 12.4 | 12.4 mg/l |
| 19 Mar 2025, 13:01 | 13 | 13 mg/l |
| 21 Feb 2025, 12:17 | 12.4 | 12.4 mg/l |
| 30 Jan 2025, 07:35 | 13.1 | 13.1 mg/l |
| 9 Dec 2024, 13:00 | 12 | 12 mg/l |
| 14 Nov 2024, 13:36 | 11.1 | 11.1 mg/l |
| 7 Oct 2024, 11:47 | 10.8 | 10.8 mg/l |
| 4 Sep 2024, 09:10 | 10.1 | 10.1 mg/l |
| 2 Aug 2024, 09:31 | 10.6 | 10.6 mg/l |
| 5 Jul 2024, 10:10 | 10.9 | 10.9 mg/l |
| 4 Jun 2024, 11:52 | 11.1 | 11.1 mg/l |
| 8 Mar 2024, 12:58 | 12.6 | 12.6 mg/l |
| 9 Feb 2024, 10:15 | 12.6 | 12.6 mg/l |
| 26 Jan 2024, 09:34 | 12.6 | 12.6 mg/l |
| 5 Dec 2023, 11:14 | 12.5 | 12.5 mg/l |
| 7 Nov 2023, 10:05 | 11.5 | 11.5 mg/l |
| 5 Oct 2023, 14:35 | 10.4 | 10.4 mg/l |
Water temperature
code 0076 · °C
15.3 °C
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 15.3 | 15.3 °C |
| 1 Jul 2026, 11:35 | 12.7 | 12.7 °C |
| 4 Jun 2026, 13:18 | 12.9 | 12.9 °C |
| 8 May 2026, 11:47 | 10.6 | 10.6 °C |
| 24 Apr 2026, 10:43 | 9.1 | 9.1 °C |
| 24 Mar 2026, 12:36 | 8.5 | 8.5 °C |
| 9 Feb 2026, 12:47 | 5.9 | 5.9 °C |
| 22 Jan 2026, 13:41 | 5.6 | 5.6 °C |
| 1 Dec 2025, 12:12 | 7.4 | 7.4 °C |
| 10 Nov 2025, 11:17 | 10.3 | 10.3 °C |
| 6 Oct 2025, 10:39 | 11.6 | 11.6 °C |
| 18 Sep 2025, 12:13 | 13.1 | 13.1 °C |
| 26 Aug 2025, 10:07 | 15.5 | 15.5 °C |
| 2 Apr 2025, 11:55 | 8.3 | 8.3 °C |
| 19 Mar 2025, 13:01 | 7.4 | 7.4 °C |
| 21 Feb 2025, 12:17 | 7.3 | 7.3 °C |
| 30 Jan 2025, 07:35 | 5.1 | 5.1 °C |
| 9 Dec 2024, 13:00 | 7.2 | 7.2 °C |
| 14 Nov 2024, 13:36 | 9.9 | 9.9 °C |
| 7 Oct 2024, 11:47 | 11.7 | 11.7 °C |
| 4 Sep 2024, 09:10 | 13.6 | 13.6 °C |
| 2 Aug 2024, 09:31 | 12 | 12 °C |
| 5 Jul 2024, 10:10 | 11.4 | 11.4 °C |
| 4 Jun 2024, 11:52 | 10.8 | 10.8 °C |
| 8 Mar 2024, 12:58 | 6.5 | 6.5 °C |
| 9 Feb 2024, 10:15 | 5.6 | 5.6 °C |
| 26 Jan 2024, 09:34 | 5.2 | 5.2 °C |
| 5 Dec 2023, 11:14 | 6.1 | 6.1 °C |
| 7 Nov 2023, 10:05 | 9.4 | 9.4 °C |
| 5 Oct 2023, 14:35 | 13.4 | 13.4 °C |
pH
code 0061
7.61
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 7.61 | 7.61 |
| 1 Jul 2026, 11:35 | 7.17 | 7.17 |
| 4 Jun 2026, 13:18 | 7.44 | 7.44 |
| 8 May 2026, 11:47 | 8.08 | 8.08 |
| 24 Apr 2026, 10:43 | 7.59 | 7.59 |
| 24 Mar 2026, 12:36 | 7.6 | 7.6 |
| 9 Feb 2026, 12:47 | 7.49 | 7.49 |
| 22 Jan 2026, 13:41 | 7.33 | 7.33 |
| 1 Dec 2025, 12:12 | 6.96 | 6.96 |
| 10 Nov 2025, 11:17 | 7.34 | 7.34 |
| 6 Oct 2025, 10:39 | 7.46 | 7.46 |
| 18 Sep 2025, 12:13 | 7.51 | 7.51 |
| 26 Aug 2025, 10:07 | 7.82 | 7.82 |
| 2 Apr 2025, 11:55 | 7.72 | 7.72 |
| 19 Mar 2025, 13:01 | 7.61 | 7.61 |
| 21 Feb 2025, 12:17 | 7.89 | 7.89 |
| 30 Jan 2025, 07:35 | 7.97 | 7.97 |
| 9 Dec 2024, 13:00 | 7.5 | 7.5 |
| 14 Nov 2024, 13:36 | 7.89 | 7.89 |
| 7 Oct 2024, 11:47 | 7.45 | 7.45 |
| 4 Sep 2024, 09:10 | 7.78 | 7.78 |
| 2 Aug 2024, 09:31 | 7.7 | 7.7 |
| 5 Jul 2024, 10:10 | 7.8 | 7.8 |
| 4 Jun 2024, 11:52 | 7.39 | 7.39 |
| 8 Mar 2024, 12:58 | 7.59 | 7.59 |
| 9 Feb 2024, 10:15 | 7.28 | 7.28 |
| 26 Jan 2024, 09:34 | 7.49 | 7.49 |
| 5 Dec 2023, 11:14 | 6.53 | 6.53 |
| 7 Nov 2023, 10:05 | 6.8 | 6.8 |
| 5 Oct 2023, 14:35 | 7.14 | 7.14 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.093 mg/l
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 0.093 | 0.093 mg/l |
| 1 Jul 2026, 11:35 | 0.01 | 0.01 mg/l |
| 4 Jun 2026, 13:18 | 0.017 | 0.017 mg/l |
| 8 May 2026, 11:47 | 0.0046 | 0.0046 mg/l |
| 24 Apr 2026, 10:43 | 0.0028 | 0.0028 mg/l |
| 24 Mar 2026, 12:36 | 0.0041 | 0.0041 mg/l |
| 9 Feb 2026, 12:47 | 0.0058 | 0.0058 mg/l |
| 22 Jan 2026, 13:41 | 0.011 | 0.011 mg/l |
| 1 Dec 2025, 12:12 | 0.023 | 0.023 mg/l |
| 10 Nov 2025, 11:17 | 0.012 | 0.012 mg/l |
| 6 Oct 2025, 10:39 | 0.0091 | 0.0091 mg/l |
| 18 Sep 2025, 12:13 | 0.0022 | 0.0022 mg/l |
| 26 Aug 2025, 10:07 | <0.002 | below 0.002 mg/l (not detected above this) |
| 2 Apr 2025, 11:55 | 0.0055 | 0.0055 mg/l |
| 19 Mar 2025, 13:01 | 0.0077 | 0.0077 mg/l |
| 21 Feb 2025, 12:17 | 0.012 | 0.012 mg/l |
| 30 Jan 2025, 07:35 | 0.016 | 0.016 mg/l |
| 9 Dec 2024, 13:00 | 0.0043 | 0.0043 mg/l |
| 14 Nov 2024, 13:36 | 0.0086 | 0.0086 mg/l |
| 7 Oct 2024, 11:47 | 0.014 | 0.014 mg/l |
| 4 Sep 2024, 09:10 | 0.021 | 0.021 mg/l |
| 2 Aug 2024, 09:31 | 0.017 | 0.017 mg/l |
| 5 Jul 2024, 10:10 | 0.018 | 0.018 mg/l |
| 4 Jun 2024, 11:52 | 0.0051 | 0.0051 mg/l |
| 8 Mar 2024, 12:58 | 0.018 | 0.018 mg/l |
| 9 Feb 2024, 10:15 | 0.019 | 0.019 mg/l |
| 26 Jan 2024, 09:34 | 0.017 | 0.017 mg/l |
| 5 Dec 2023, 11:14 | 0.016 | 0.016 mg/l |
| 7 Nov 2023, 10:05 | 0.017 | 0.017 mg/l |
| 5 Oct 2023, 14:35 | 0.01 | 0.01 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.385 mg/l
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 0.385 | 0.385 mg/l |
| 1 Jul 2026, 11:35 | 0.359 | 0.359 mg/l |
| 4 Jun 2026, 13:18 | 0.299 | 0.299 mg/l |
| 8 May 2026, 11:47 | 0.439 | 0.439 mg/l |
| 24 Apr 2026, 10:43 | 0.419 | 0.419 mg/l |
| 24 Mar 2026, 12:36 | 0.849 | 0.849 mg/l |
| 9 Feb 2026, 12:47 | 0.559 | 0.559 mg/l |
| 22 Jan 2026, 13:41 | 0.409 | 0.409 mg/l |
| 1 Dec 2025, 12:12 | 0.341 | 0.341 mg/l |
| 10 Nov 2025, 11:17 | 0.417 | 0.417 mg/l |
| 6 Oct 2025, 10:39 | 0.648 | 0.648 mg/l |
| 18 Sep 2025, 12:13 | 0.538 | 0.538 mg/l |
| 26 Aug 2025, 10:07 | 0.439 | 0.439 mg/l |
| 2 Apr 2025, 11:55 | 0.449 | 0.449 mg/l |
| 19 Mar 2025, 13:01 | 0.487 | 0.487 mg/l |
| 21 Feb 2025, 12:17 | 0.558 | 0.558 mg/l |
| 30 Jan 2025, 07:35 | 0.558 | 0.558 mg/l |
| 9 Dec 2024, 13:00 | 0.529 | 0.529 mg/l |
| 14 Nov 2024, 13:36 | 0.339 | 0.339 mg/l |
| 7 Oct 2024, 11:47 | 0.498 | 0.498 mg/l |
| 4 Sep 2024, 09:10 | 0.377 | 0.377 mg/l |
| 2 Aug 2024, 09:31 | 0.399 | 0.399 mg/l |
| 5 Jul 2024, 10:10 | 0.179 | 0.179 mg/l |
| 4 Jun 2024, 11:52 | 0.439 | 0.439 mg/l |
| 8 Mar 2024, 12:58 | 0.607 | 0.607 mg/l |
| 9 Feb 2024, 10:15 | 0.877 | 0.877 mg/l |
| 26 Jan 2024, 09:34 | 0.329 | 0.329 mg/l |
| 5 Dec 2023, 11:14 | 0.139 | 0.139 mg/l |
| 7 Nov 2023, 10:05 | 0.139 | 0.139 mg/l |
| 5 Oct 2023, 14:35 | 0.209 | 0.209 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.026 mg/l
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 0.026 | 0.026 mg/l |
| 1 Jul 2026, 11:35 | 0.0094 | 0.0094 mg/l |
| 4 Jun 2026, 13:18 | 0.0098 | 0.0098 mg/l |
| 8 May 2026, 11:47 | 0.0061 | 0.0061 mg/l |
| 24 Apr 2026, 10:43 | 0.0068 | 0.0068 mg/l |
| 24 Mar 2026, 12:36 | 0.0095 | 0.0095 mg/l |
| 9 Feb 2026, 12:47 | 0.0091 | 0.0091 mg/l |
| 22 Jan 2026, 13:41 | 0.0071 | 0.0071 mg/l |
| 1 Dec 2025, 12:12 | 0.011 | 0.011 mg/l |
| 10 Nov 2025, 11:17 | 0.0097 | 0.0097 mg/l |
| 6 Oct 2025, 10:39 | 0.013 | 0.013 mg/l |
| 18 Sep 2025, 12:13 | 0.0057 | 0.0057 mg/l |
| 26 Aug 2025, 10:07 | 0.012 | 0.012 mg/l |
| 2 Apr 2025, 11:55 | 0.0043 | 0.0043 mg/l |
| 19 Mar 2025, 13:01 | 0.006 | 0.006 mg/l |
| 21 Feb 2025, 12:17 | 0.011 | 0.011 mg/l |
| 30 Jan 2025, 07:35 | 0.0088 | 0.0088 mg/l |
| 9 Dec 2024, 13:00 | 0.0094 | 0.0094 mg/l |
| 14 Nov 2024, 13:36 | 0.013 | 0.013 mg/l |
| 7 Oct 2024, 11:47 | 0.012 | 0.012 mg/l |
| 4 Sep 2024, 09:10 | 0.015 | 0.015 mg/l |
| 2 Aug 2024, 09:31 | 0.013 | 0.013 mg/l |
| 5 Jul 2024, 10:10 | 0.013 | 0.013 mg/l |
| 4 Jun 2024, 11:52 | 0.0065 | 0.0065 mg/l |
| 8 Mar 2024, 12:58 | 0.007 | 0.007 mg/l |
| 9 Feb 2024, 10:15 | 0.012 | 0.012 mg/l |
| 26 Jan 2024, 09:34 | 0.0064 | 0.0064 mg/l |
| 5 Dec 2023, 11:14 | 0.008 | 0.008 mg/l |
| 7 Nov 2023, 10:05 | 0.0098 | 0.0098 mg/l |
| 5 Oct 2023, 14:35 | 0.008 | 0.008 mg/l |
Turbidity
code 6396 · NTU
1.6 NTU
Sampled 24 Mar 2026, 6 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Mar 2026, 12:36 | 1.6 | 1.6 NTU |
| 9 Feb 2026, 12:47 | 1.6 | 1.6 NTU |
| 22 Jan 2026, 13:41 | 2.5 | 2.5 NTU |
| 1 Dec 2025, 12:12 | 2 | 2 NTU |
| 10 Nov 2025, 11:17 | 5.2 | 5.2 NTU |
| 6 Oct 2025, 10:39 | 3.9 | 3.9 NTU |
| 18 Sep 2025, 12:13 | 4.6 | 4.6 NTU |
| 26 Aug 2025, 10:07 | 6.3 | 6.3 NTU |
| 2 Apr 2025, 11:55 | 1.3 | 1.3 NTU |
| 19 Mar 2025, 13:01 | 1.9 | 1.9 NTU |
| 21 Feb 2025, 12:17 | 2 | 2 NTU |
| 30 Jan 2025, 07:35 | 2.6 | 2.6 NTU |
| 9 Dec 2024, 13:00 | 2.8 | 2.8 NTU |
| 14 Nov 2024, 13:36 | 2.3 | 2.3 NTU |
| 7 Oct 2024, 11:47 | 3 | 3 NTU |
| 4 Sep 2024, 09:10 | 2.7 | 2.7 NTU |
| 2 Aug 2024, 09:31 | 1.7 | 1.7 NTU |
| 5 Jul 2024, 10:10 | 1.7 | 1.7 NTU |
| 4 Jun 2024, 11:52 | 2.4 | 2.4 NTU |
| 8 May 2024, 10:37 | 1.9 | 1.9 NTU |
| 8 Mar 2024, 12:58 | 3.5 | 3.5 NTU |
| 9 Feb 2024, 10:15 | 7.5 | 7.5 NTU |
| 26 Jan 2024, 09:34 | 3.2 | 3.2 NTU |
| 5 Dec 2023, 11:14 | 2.8 | 2.8 NTU |
| 7 Nov 2023, 10:05 | 3.5 | 3.5 NTU |
| 5 Oct 2023, 14:35 | 2 | 2 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
79 µS/cm
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 15:18 | 79 | 79 µS/cm |
| 1 Jul 2026, 11:35 | 80 | 80 µS/cm |
| 4 Jun 2026, 13:18 | 87 | 87 µS/cm |
| 8 May 2026, 11:47 | 85 | 85 µS/cm |
| 24 Apr 2026, 10:43 | 90 | 90 µS/cm |
| 24 Mar 2026, 12:36 | 98 | 98 µS/cm |
| 9 Feb 2026, 12:47 | 79 | 79 µS/cm |
| 22 Jan 2026, 13:41 | 69 | 69 µS/cm |
| 1 Dec 2025, 12:12 | 54 | 54 µS/cm |
| 10 Nov 2025, 11:17 | 71 | 71 µS/cm |
| 6 Oct 2025, 10:39 | 99 | 99 µS/cm |
| 18 Sep 2025, 12:13 | 104 | 104 µS/cm |
| 26 Aug 2025, 10:07 | 90 | 90 µS/cm |
| 2 Apr 2025, 11:55 | 89 | 89 µS/cm |
| 19 Mar 2025, 13:01 | 94 | 94 µS/cm |
| 21 Feb 2025, 12:17 | 95 | 95 µS/cm |
| 30 Jan 2025, 07:35 | 79 | 79 µS/cm |
| 9 Dec 2024, 13:00 | 70 | 70 µS/cm |
| 14 Nov 2024, 13:36 | 88 | 88 µS/cm |
| 7 Oct 2024, 11:47 | 85 | 85 µS/cm |
| 4 Sep 2024, 09:10 | 84 | 84 µS/cm |
| 2 Aug 2024, 09:31 | 84 | 84 µS/cm |
| 5 Jul 2024, 10:10 | 324 | 324 µS/cm |
| 4 Jun 2024, 11:52 | 80 | 80 µS/cm |
| 8 Mar 2024, 12:58 | 81 | 81 µS/cm |
| 9 Feb 2024, 10:15 | 122 | 122 µS/cm |
| 26 Jan 2024, 09:34 | 59 | 59 µS/cm |
| 5 Dec 2023, 11:14 | 44 | 44 µS/cm |
| 7 Nov 2023, 10:05 | 45 | 45 µS/cm |
| 5 Oct 2023, 14:35 | 71 | 71 µS/cm |
Everything measured here
77 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 77 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 30 | Oct 2023 – Aug 2026 | 98.4% 4 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – Aug 2026 | 9.83 mg/l 4 Aug 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – Aug 2026 | 15.3 °C 4 Aug 2026 |
| pH 0061 | River water | 30 | Oct 2023 – Aug 2026 | 7.61 4 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Aug 2026 | 0.093 mg/l 4 Aug 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Aug 2026 | 0.385 mg/l 4 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Aug 2026 | 0.026 mg/l 4 Aug 2026 |
| Turbidity 6396 | River water | 26 | Oct 2023 – Mar 2026 | 1.6 NTU 24 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – Aug 2026 | 79 µS/cm 4 Aug 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 22 Jan 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Jul 2025 – Jan 2026 | below 0.004 µg/l 22 Jan 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 22 Jan 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Jan 2026 – Jan 2026 | below 0.01 µg/l 22 Jan 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 22 Jan 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Jan 2026 – Jan 2026 | below 0.01 µg/l 22 Jan 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Jan 2026 – Jan 2026 | below 0.01 µg/l 22 Jan 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Aug 2026 | 24 mg/l 4 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Oct 2023 – Aug 2026 | 0.00103 mg/l 4 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 23 | Oct 2023 – Mar 2026 | 2.4 µg/l 24 Mar 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Jul 2025 – Jan 2026 | below 0.002 µg/l 22 Jan 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Jul 2025 – Jan 2026 | below 0.002 µg/l 22 Jan 2026 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Aug 2026 | 0.0052 mg/l 4 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Aug 2026 | 0.39 mg/l 4 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Perfluorobutanoic acid 2995 | River water | 2 | Jul 2025 – Jan 2026 | 0.0013 µg/l 22 Jan 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Perfluorodecanoic acid 8892 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Jul 2025 – Jan 2026 | below 0.005 µg/l 22 Jan 2026 |
| Perfluorododecanoic acid 8894 | River water | 2 | Jul 2025 – Jan 2026 | below 0.002 µg/l 22 Jan 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 15 Jul 2025 |
| Perfluorohexanoic acid 8888 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorononanoic acid 8891 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 15 Jul 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Jul 2025 – Jan 2026 | below 0.002 µg/l 22 Jan 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Jul 2025 – Jan 2026 | 0.0005 µg/l 22 Jan 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Perfluorooctanoic acid 8890 | River water | 2 | Jul 2025 – Jan 2026 | 0.001 µg/l 22 Jan 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Jul 2025 – Jan 2026 | below 0.0005 µg/l 22 Jan 2026 |
| Perfluoropentanoic acid 8887 | River water | 2 | Jul 2025 – Jan 2026 | 0.0011 µg/l 22 Jan 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Jul 2025 – Jan 2026 | below 0.006 µg/l 22 Jan 2026 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Jul 2025 – Jan 2026 | below 0.002 µg/l 22 Jan 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Jul 2025 – Jan 2026 | below 0.004 µg/l 22 Jan 2026 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Jul 2025 – Jan 2026 | below 0.001 µg/l 22 Jan 2026 |
| Solids, Suspended at 105 C 0135 | River water | 26 | Oct 2023 – Mar 2026 | 4 mg/l 24 Mar 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.