Tees at Dent Bank
EA name: TEES AT DENT BANK
Environment Agency sampling point NE-45100079 · 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
- 29 May 2026, 12:294 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 31 since 16 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 393385, 525985As published, to the nearest 1 m. Open in a map
- River, by its own name
- Tees
- River, by the map
- River TeesPlaced on the river its name gives, 20 m from the line.
- Next gauge downstream
- Middleton On the River Tees · 2.1 km along the river
- Nearest gauge upstream
- Harwood On the Harwood Beck · 12 km along the riverMoorhouse On the Trout Beck · 26 km along the river
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
103%
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | 103 | 103% |
| 28 May 2026, 12:26 | 103.9 | 103.9% |
| 21 Apr 2026, 12:49 | 102 | 102% |
| 8 Apr 2026, 13:03 | 105.6 | 105.6% |
| 24 Mar 2026, 11:17 | 103.1 | 103.1% |
| 9 Mar 2026, 14:19 | 103.3 | 103.3% |
| 25 Feb 2026, 09:46 | 99.1 | 99.1% |
| 11 Feb 2026, 12:29 | 99.6 | 99.6% |
| 29 Jan 2026, 12:12 | 99.4 | 99.4% |
| 2 Jan 2026, 11:49 | 98.7 | 98.7% |
| 18 Dec 2025, 10:31 | 100.3 | 100.3% |
| 10 Dec 2025, 11:56 | 102.3 | 102.3% |
| 18 Nov 2025, 12:06 | 101.3 | 101.3% |
| 18 Mar 2025, 08:50 | 101.1 | 101.1% |
| 21 Feb 2025, 09:31 | 101.6 | 101.6% |
| 21 Jan 2025, 09:47 | 99.9 | 99.9% |
| 12 Dec 2024, 11:57 | 95.4 | 95.4% |
| 20 Nov 2024, 12:22 | 97.2 | 97.2% |
| 18 Oct 2024, 11:24 | 100.4 | 100.4% |
| 27 Sep 2024, 11:15 | 101.3 | 101.3% |
| 28 Aug 2024, 11:10 | 99.9 | 99.9% |
| 18 Jul 2024, 11:27 | 97.6 | 97.6% |
| 28 Jun 2024, 12:27 | 99.6 | 99.6% |
| 13 May 2024, 11:30 | 102.6 | 102.6% |
| 16 Apr 2024, 12:08 | 99.9 | 99.9% |
| 20 Mar 2024, 10:04 | 99.6 | 99.6% |
| 23 Feb 2024, 12:41 | 99.7 | 99.7% |
| 15 Jan 2024, 13:20 | 100.4 | 100.4% |
| 14 Dec 2023, 13:32 | 99.7 | 99.7% |
| 20 Nov 2023, 12:18 | 101.7 | 101.7% |
| 16 Oct 2023, 13:07 | 100.8 | 100.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.2 mg/l
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | 10.2 | 10.2 mg/l |
| 28 May 2026, 12:26 | 10.5 | 10.5 mg/l |
| 21 Apr 2026, 12:49 | 11.6 | 11.6 mg/l |
| 8 Apr 2026, 13:03 | 11.8 | 11.8 mg/l |
| 24 Mar 2026, 11:17 | 12.3 | 12.3 mg/l |
| 9 Mar 2026, 14:19 | 12.2 | 12.2 mg/l |
| 25 Feb 2026, 09:46 | 12.4 | 12.4 mg/l |
| 11 Feb 2026, 12:29 | 12.9 | 12.9 mg/l |
| 29 Jan 2026, 12:12 | 12.8 | 12.8 mg/l |
| 2 Jan 2026, 11:49 | 13.9 | 13.9 mg/l |
| 18 Dec 2025, 10:31 | 12.4 | 12.4 mg/l |
| 10 Dec 2025, 11:56 | 12.3 | 12.3 mg/l |
| 18 Nov 2025, 12:06 | 13.1 | 13.1 mg/l |
| 18 Mar 2025, 08:50 | 13.1 | 13.1 mg/l |
| 21 Feb 2025, 09:31 | 12.6 | 12.6 mg/l |
| 21 Jan 2025, 09:47 | 12.9 | 12.9 mg/l |
| 12 Dec 2024, 11:57 | 11.7 | 11.7 mg/l |
| 20 Nov 2024, 12:22 | 12.7 | 12.7 mg/l |
| 18 Oct 2024, 11:24 | 11.3 | 11.3 mg/l |
| 27 Sep 2024, 11:15 | 11.6 | 11.6 mg/l |
| 28 Aug 2024, 11:10 | 10.5 | 10.5 mg/l |
| 18 Jul 2024, 11:27 | 9.92 | 9.92 mg/l |
| 28 Jun 2024, 12:27 | 10.5 | 10.5 mg/l |
| 13 May 2024, 11:30 | 10.8 | 10.8 mg/l |
| 16 Apr 2024, 12:08 | 12.2 | 12.2 mg/l |
| 20 Mar 2024, 10:04 | 12 | 12 mg/l |
| 23 Feb 2024, 12:41 | 12.7 | 12.7 mg/l |
| 15 Jan 2024, 13:20 | 13.9 | 13.9 mg/l |
| 14 Dec 2023, 13:32 | 12.7 | 12.7 mg/l |
| 20 Nov 2023, 12:18 | 12 | 12 mg/l |
| 16 Oct 2023, 13:07 | 11.9 | 11.9 mg/l |
Water temperature
code 0076 · °C
15.9 °C
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | 15.9 | 15.9 °C |
| 28 May 2026, 12:26 | 14.9 | 14.9 °C |
| 21 Apr 2026, 12:49 | 9.5 | 9.5 °C |
| 8 Apr 2026, 13:03 | 10.5 | 10.5 °C |
| 24 Mar 2026, 11:17 | 7.8 | 7.8 °C |
| 9 Mar 2026, 14:19 | 8.2 | 8.2 °C |
| 25 Feb 2026, 09:46 | 5.7 | 5.7 °C |
| 11 Feb 2026, 12:29 | 4.5 | 4.5 °C |
| 29 Jan 2026, 12:12 | 4.5 | 4.5 °C |
| 2 Jan 2026, 11:49 | 1.3 | 1.3 °C |
| 18 Dec 2025, 10:31 | 6.1 | 6.1 °C |
| 10 Dec 2025, 11:56 | 7.2 | 7.2 °C |
| 18 Nov 2025, 12:06 | 4.4 | 4.4 °C |
| 18 Mar 2025, 08:50 | 4.4 | 4.4 °C |
| 21 Feb 2025, 09:31 | 6 | 6 °C |
| 21 Jan 2025, 09:47 | 4.6 | 4.6 °C |
| 12 Dec 2024, 11:57 | 6.7 | 6.7 °C |
| 20 Nov 2024, 12:22 | 4.1 | 4.1 °C |
| 18 Oct 2024, 11:24 | 10.2 | 10.2 °C |
| 27 Sep 2024, 11:15 | 9.3 | 9.3 °C |
| 28 Aug 2024, 11:10 | 12.9 | 12.9 °C |
| 18 Jul 2024, 11:27 | 14.5 | 14.5 °C |
| 28 Jun 2024, 12:27 | 12.9 | 12.9 °C |
| 13 May 2024, 11:30 | 12.8 | 12.8 °C |
| 16 Apr 2024, 12:08 | 6.8 | 6.8 °C |
| 20 Mar 2024, 10:04 | 7.3 | 7.3 °C |
| 23 Feb 2024, 12:41 | 5.1 | 5.1 °C |
| 15 Jan 2024, 13:20 | 2 | 2 °C |
| 14 Dec 2023, 13:32 | 5.2 | 5.2 °C |
| 20 Nov 2023, 12:18 | 8.2 | 8.2 °C |
| 16 Oct 2023, 13:07 | 8.1 | 8.1 °C |
pH
code 0061
8
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | 8 | 8 |
| 28 May 2026, 12:26 | 8.1 | 8.1 |
| 21 Apr 2026, 12:49 | 7.68 | 7.68 |
| 8 Apr 2026, 13:03 | 7.81 | 7.81 |
| 24 Mar 2026, 11:17 | 7.96 | 7.96 |
| 9 Mar 2026, 14:19 | 7.84 | 7.84 |
| 25 Feb 2026, 09:46 | 7.55 | 7.55 |
| 11 Feb 2026, 12:29 | 7.72 | 7.72 |
| 29 Jan 2026, 12:12 | 7.56 | 7.56 |
| 2 Jan 2026, 11:49 | 7.62 | 7.62 |
| 18 Dec 2025, 10:31 | 7.47 | 7.47 |
| 10 Dec 2025, 11:56 | 7.58 | 7.58 |
| 18 Nov 2025, 12:06 | 7.55 | 7.55 |
| 18 Mar 2025, 08:50 | 7.74 | 7.74 |
| 21 Feb 2025, 09:31 | 7.54 | 7.54 |
| 21 Jan 2025, 09:47 | 7.58 | 7.58 |
| 12 Dec 2024, 11:57 | 7.53 | 7.53 |
| 20 Nov 2024, 12:22 | 7.63 | 7.63 |
| 18 Oct 2024, 11:24 | 7.54 | 7.54 |
| 27 Sep 2024, 11:15 | 7.72 | 7.72 |
| 28 Aug 2024, 11:10 | 7.6 | 7.6 |
| 18 Jul 2024, 11:27 | 7.73 | 7.73 |
| 28 Jun 2024, 12:27 | 7.86 | 7.86 |
| 13 May 2024, 11:30 | 7.22 | 7.22 |
| 16 Apr 2024, 12:08 | 7.53 | 7.53 |
| 20 Mar 2024, 10:04 | 7.56 | 7.56 |
| 23 Feb 2024, 12:41 | 7.52 | 7.52 |
| 15 Jan 2024, 13:20 | 7.94 | 7.94 |
| 14 Dec 2023, 13:32 | 7.49 | 7.49 |
| 20 Nov 2023, 12:18 | 7.46 | 7.46 |
| 16 Oct 2023, 13:07 | 7.82 | 7.82 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 May 2026, 12:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Apr 2026, 12:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Apr 2026, 13:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2026, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Mar 2026, 14:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2026, 09:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2026, 12:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jan 2026, 12:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2026, 11:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Dec 2025, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Dec 2025, 11:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2025, 12:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2025, 08:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Feb 2025, 09:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jan 2025, 09:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Dec 2024, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2024, 12:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2024, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Sep 2024, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Aug 2024, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2024, 11:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jun 2024, 12:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2024, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2024, 12:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2024, 10:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Feb 2024, 12:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jan 2024, 13:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Dec 2023, 13:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2023, 12:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 13:07 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.206 mg/l
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | 0.206 | 0.206 mg/l |
| 28 May 2026, 12:26 | 0.306 | 0.306 mg/l |
| 21 Apr 2026, 12:49 | 0.376 | 0.376 mg/l |
| 8 Apr 2026, 13:03 | 0.316 | 0.316 mg/l |
| 24 Mar 2026, 11:17 | 0.236 | 0.236 mg/l |
| 9 Mar 2026, 14:19 | 0.236 | 0.236 mg/l |
| 25 Feb 2026, 09:46 | 0.536 | 0.536 mg/l |
| 11 Feb 2026, 12:29 | 0.366 | 0.366 mg/l |
| 29 Jan 2026, 12:12 | 0.916 | 0.916 mg/l |
| 2 Jan 2026, 11:49 | 0.476 | 0.476 mg/l |
| 18 Dec 2025, 10:31 | 0.376 | 0.376 mg/l |
| 10 Dec 2025, 11:56 | 0.396 | 0.396 mg/l |
| 18 Nov 2025, 12:06 | 0.316 | 0.316 mg/l |
| 18 Mar 2025, 08:50 | <0.196 | below 0.196 mg/l (not detected above this) |
| 21 Feb 2025, 09:31 | 0.296 | 0.296 mg/l |
| 21 Jan 2025, 09:47 | 0.346 | 0.346 mg/l |
| 12 Dec 2024, 11:57 | 0.396 | 0.396 mg/l |
| 20 Nov 2024, 12:22 | <0.196 | below 0.196 mg/l (not detected above this) |
| 18 Oct 2024, 11:24 | 0.226 | 0.226 mg/l |
| 27 Sep 2024, 11:15 | <0.196 | below 0.196 mg/l (not detected above this) |
| 28 Aug 2024, 11:10 | <0.196 | below 0.196 mg/l (not detected above this) |
| 18 Jul 2024, 11:27 | <0.196 | below 0.196 mg/l (not detected above this) |
| 28 Jun 2024, 12:27 | 0.346 | 0.346 mg/l |
| 13 May 2024, 11:30 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Apr 2024, 12:08 | 0.226 | 0.226 mg/l |
| 20 Mar 2024, 10:04 | 0.526 | 0.526 mg/l |
| 23 Feb 2024, 12:41 | <0.196 | below 0.196 mg/l (not detected above this) |
| 15 Jan 2024, 13:20 | 0.686 | 0.686 mg/l |
| 14 Dec 2023, 13:32 | 0.506 | 0.506 mg/l |
| 20 Nov 2023, 12:18 | 0.256 | 0.256 mg/l |
| 16 Oct 2023, 13:07 | 0.386 | 0.386 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 29 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | <0.01 | below 0.01 mg/l (not detected above this) |
| 28 May 2026, 12:26 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Apr 2026, 12:49 | <0.01 | below 0.01 mg/l (not detected above this) |
| 8 Apr 2026, 13:03 | <0.01 | below 0.01 mg/l (not detected above this) |
| 24 Mar 2026, 11:17 | <0.01 | below 0.01 mg/l (not detected above this) |
| 9 Mar 2026, 14:19 | <0.01 | below 0.01 mg/l (not detected above this) |
| 25 Feb 2026, 09:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Feb 2026, 12:29 | <0.01 | below 0.01 mg/l (not detected above this) |
| 29 Jan 2026, 12:12 | <0.01 | below 0.01 mg/l (not detected above this) |
| 2 Jan 2026, 11:49 | 0.011 | 0.011 mg/l |
| 18 Dec 2025, 10:31 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Dec 2025, 11:56 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Nov 2025, 12:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Mar 2025, 08:50 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Feb 2025, 09:31 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Jan 2025, 09:47 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Dec 2024, 11:57 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Nov 2024, 12:22 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Oct 2024, 11:24 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Sep 2024, 11:15 | <0.01 | below 0.01 mg/l (not detected above this) |
| 28 Aug 2024, 11:10 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Jul 2024, 11:27 | <0.01 | below 0.01 mg/l (not detected above this) |
| 28 Jun 2024, 12:27 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 May 2024, 11:30 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Apr 2024, 12:08 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Mar 2024, 10:04 | <0.01 | below 0.01 mg/l (not detected above this) |
| 23 Feb 2024, 12:41 | <0.01 | below 0.01 mg/l (not detected above this) |
| 15 Jan 2024, 13:20 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Dec 2023, 13:32 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Nov 2023, 12:18 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Oct 2023, 13:07 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
132 µS/cm
Sampled 29 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 12:29 | 132 | 132 µS/cm |
| 28 May 2026, 12:26 | 113 | 113 µS/cm |
| 21 Apr 2026, 12:49 | 200 | 200 µS/cm |
| 8 Apr 2026, 13:03 | 110 | 110 µS/cm |
| 24 Mar 2026, 11:17 | 97 | 97 µS/cm |
| 9 Mar 2026, 14:19 | 95 | 95 µS/cm |
| 25 Feb 2026, 09:46 | 111 | 111 µS/cm |
| 11 Feb 2026, 12:29 | 74 | 74 µS/cm |
| 29 Jan 2026, 12:12 | 169 | 169 µS/cm |
| 2 Jan 2026, 11:49 | 125 | 125 µS/cm |
| 18 Dec 2025, 10:31 | 89 | 89 µS/cm |
| 10 Dec 2025, 11:56 | 94 | 94 µS/cm |
| 18 Nov 2025, 12:06 | 108 | 108 µS/cm |
| 18 Mar 2025, 08:50 | 205 | 205 µS/cm |
| 21 Feb 2025, 09:31 | 119 | 119 µS/cm |
| 21 Jan 2025, 09:47 | 181 | 181 µS/cm |
| 12 Dec 2024, 11:57 | 248 | 248 µS/cm |
| 20 Nov 2024, 12:22 | 240 | 240 µS/cm |
| 18 Oct 2024, 11:24 | 103 | 103 µS/cm |
| 27 Sep 2024, 11:15 | 81 | 81 µS/cm |
| 28 Aug 2024, 11:10 | 73 | 73 µS/cm |
| 18 Jul 2024, 11:27 | 170 | 170 µS/cm |
| 28 Jun 2024, 12:27 | 244 | 244 µS/cm |
| 13 May 2024, 11:30 | 69 | 69 µS/cm |
| 16 Apr 2024, 12:08 | 83 | 83 µS/cm |
| 20 Mar 2024, 10:04 | 168 | 168 µS/cm |
| 23 Feb 2024, 12:41 | 107 | 107 µS/cm |
| 15 Jan 2024, 13:20 | 182 | 182 µS/cm |
| 14 Dec 2023, 13:32 | 122 | 122 µS/cm |
| 20 Nov 2023, 12:18 | 75 | 75 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – May 2026 | 103% 29 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – May 2026 | 10.2 mg/l 29 May 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – May 2026 | 15.9 °C 29 May 2026 |
| pH 0061 | River water | 31 | Oct 2023 – May 2026 | 8 29 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – May 2026 | below 0.03 mg/l 29 May 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – May 2026 | 0.206 mg/l 29 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – May 2026 | below 0.01 mg/l 29 May 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Nov 2023 – May 2026 | 132 µS/cm 29 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – May 2026 | 42 mg/l 29 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – May 2026 | below 0.00084 mg/l 29 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Feb 2024 – May 2026 | below 1 mg/l 29 May 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – May 2026 | below 0.004 mg/l 29 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – May 2026 | 0.21 mg/l 29 May 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.