Hogstow Brook - Boat Level
EA name: HOGSTOW BROOK - BOAT LEVEL (also listed as “HOGSTOW BROOK - BOAT LEVEL DRAINAGE ADIT PORTAL MINSTERLEY BROOK”)
Environment Agency sampling point MD-29614590 · 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
- 31 Jul 2026, 12:112 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 3 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 335870, 299980As published, to the nearest 10 m. Open in a map
- River, by its own name
- Hogstow Brook
- River, by the map
- Not placedNo mapped watercourse within 500 m. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.3%
Sampled 31 Jul 2026, 2 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 31 Jul 2026, 12:11 | 98.3 | 98.3% |
| 21 May 2026, 11:47 | 100.9 | 100.9% |
| 25 Mar 2026, 10:46 | 97.6 | 97.6% |
| 22 Jan 2026, 12:13 | 99.2 | 99.2% |
| 21 Nov 2025, 11:55 | 100.1 | 100.1% |
| 26 Sep 2025, 12:20 | 99.2 | 99.2% |
| 20 Mar 2025, 14:50 | 100.2 | 100.2% |
| 22 Jan 2025, 13:31 | 98.7 | 98.7% |
| 28 Nov 2024, 13:33 | 97.7 | 97.7% |
| 27 Sep 2024, 12:06 | 97 | 97% |
| 1 Aug 2024, 13:01 | 101.4 | 101.4% |
| 21 Jun 2024, 12:53 | 89 | 89% |
| 6 Jun 2024, 11:51 | 101.9 | 101.9% |
| 12 Apr 2024, 11:03 | 100.9 | 100.9% |
| 4 Apr 2024, 09:16 | 99.7 | 99.7% |
| 26 Mar 2024, 13:30 | 100.4 | 100.4% |
| 26 Mar 2024, 13:28 | 100.4 | 100.4% |
| 27 Feb 2024, 13:08 | 99.6 | 99.6% |
| 14 Feb 2024, 13:23 | 98.9 | 98.9% |
| 31 Jan 2024, 14:47 | 101.2 | 101.2% |
| 31 Jan 2024, 14:27 | 99.9 | 99.9% |
| 16 Jan 2024, 10:56 | 104 | 104% |
| 18 Dec 2023, 10:48 | 99.8 | 99.8% |
| 11 Dec 2023, 10:20 | 98.8 | 98.8% |
| 29 Nov 2023, 14:08 | 102.2 | 102.2% |
| 17 Nov 2023, 14:23 | 99.9 | 99.9% |
| 30 Oct 2023, 11:07 | 97.9 | 97.9% |
| 27 Oct 2023, 10:39 | 97.9 | 97.9% |
| 3 Oct 2023, 13:36 | 98.7 | 98.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11 mg/l
Sampled 25 Mar 2026, 6 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 10:46 | 11 | 11 mg/l |
| 22 Jan 2026, 12:13 | 11.2 | 11.2 mg/l |
| 21 Nov 2025, 11:55 | 11.4 | 11.4 mg/l |
| 26 Sep 2025, 12:20 | 10.6 | 10.6 mg/l |
| 20 Mar 2025, 14:50 | 10.6 | 10.6 mg/l |
| 22 Jan 2025, 13:31 | 11 | 11 mg/l |
| 28 Nov 2024, 13:33 | 11.3 | 11.3 mg/l |
| 27 Sep 2024, 12:06 | 10.5 | 10.5 mg/l |
| 1 Aug 2024, 13:01 | 10.6 | 10.6 mg/l |
| 21 Jun 2024, 12:53 | 9.48 | 9.48 mg/l |
| 6 Jun 2024, 11:51 | 11 | 11 mg/l |
| 12 Apr 2024, 11:03 | 11.1 | 11.1 mg/l |
| 4 Apr 2024, 09:16 | 11.3 | 11.3 mg/l |
| 26 Mar 2024, 13:30 | 11.1 | 11.1 mg/l |
| 26 Mar 2024, 13:28 | 11.1 | 11.1 mg/l |
| 27 Feb 2024, 13:08 | 11.2 | 11.2 mg/l |
| 14 Feb 2024, 13:23 | 10.9 | 10.9 mg/l |
| 31 Jan 2024, 14:47 | 11.2 | 11.2 mg/l |
| 31 Jan 2024, 14:27 | 11.1 | 11.1 mg/l |
| 16 Jan 2024, 10:56 | 13.7 | 13.7 mg/l |
| 18 Dec 2023, 10:48 | 11.1 | 11.1 mg/l |
| 11 Dec 2023, 10:20 | 11.1 | 11.1 mg/l |
| 29 Nov 2023, 14:08 | 10.88 | 10.88 mg/l |
| 17 Nov 2023, 14:23 | 10.84 | 10.84 mg/l |
| 30 Oct 2023, 11:07 | 10.21 | 10.21 mg/l |
| 27 Oct 2023, 10:39 | 10.26 | 10.26 mg/l |
Water temperature
code 0076 · °C
13 °C
Sampled 31 Jul 2026, 2 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 31 Jul 2026, 12:11 | 13 | 13 °C |
| 21 May 2026, 11:47 | 12.7 | 12.7 °C |
| 25 Mar 2026, 10:46 | 10.1 | 10.1 °C |
| 22 Jan 2026, 12:13 | 9.8 | 9.8 °C |
| 21 Nov 2025, 11:55 | 9.4 | 9.4 °C |
| 26 Sep 2025, 12:20 | 12.1 | 12.1 °C |
| 20 Mar 2025, 14:50 | 12.6 | 12.6 °C |
| 22 Jan 2025, 13:31 | 10.6 | 10.6 °C |
| 28 Nov 2024, 13:33 | 8.8 | 8.8 °C |
| 27 Sep 2024, 12:06 | 11.6 | 11.6 °C |
| 1 Aug 2024, 13:01 | 13.4 | 13.4 °C |
| 21 Jun 2024, 12:53 | 12.4 | 12.4 °C |
| 6 Jun 2024, 11:51 | 11.7 | 11.7 °C |
| 12 Apr 2024, 11:03 | 11.1 | 11.1 °C |
| 4 Apr 2024, 09:16 | 9.9 | 9.9 °C |
| 26 Mar 2024, 13:30 | 10.8 | 10.8 °C |
| 26 Mar 2024, 13:28 | 10.8 | 10.8 °C |
| 27 Feb 2024, 13:08 | 9.9 | 9.9 °C |
| 14 Feb 2024, 13:23 | 10.8 | 10.8 °C |
| 31 Jan 2024, 14:47 | 10.6 | 10.6 °C |
| 31 Jan 2024, 14:27 | 10.7 | 10.7 °C |
| 16 Jan 2024, 10:56 | 3.7 | 3.7 °C |
| 18 Dec 2023, 10:48 | 10.7 | 10.7 °C |
| 11 Dec 2023, 10:20 | 10.2 | 10.2 °C |
| 29 Nov 2023, 14:08 | 9.7 | 9.7 °C |
| 17 Nov 2023, 14:23 | 10.7 | 10.7 °C |
| 30 Oct 2023, 11:07 | 11.3 | 11.3 °C |
| 27 Oct 2023, 10:39 | 10.8 | 10.8 °C |
| 3 Oct 2023, 13:36 | 12.4 | 12.4 °C |
pH
code 0061
7.8
Sampled 31 Jul 2026, 2 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 31 Jul 2026, 12:11 | 7.8 | 7.8 |
| 21 May 2026, 11:47 | 7.8 | 7.8 |
| 25 Mar 2026, 10:46 | 7.8 | 7.8 |
| 22 Jan 2026, 12:13 | 7.4 | 7.4 |
| 21 Nov 2025, 11:55 | 7.6 | 7.6 |
| 26 Sep 2025, 12:20 | 7.9 | 7.9 |
| 20 Mar 2025, 14:50 | 7.7 | 7.7 |
| 22 Jan 2025, 13:31 | 7.9 | 7.9 |
| 28 Nov 2024, 13:33 | 7.3 | 7.3 |
| 27 Sep 2024, 12:06 | 7.56 | 7.56 |
| 1 Aug 2024, 13:01 | 8.07 | 8.07 |
| 21 Jun 2024, 12:53 | 7.28 | 7.28 |
| 6 Jun 2024, 11:51 | 8.11 | 8.11 |
| 12 Apr 2024, 11:03 | 7.21 | 7.21 |
| 4 Apr 2024, 09:16 | 7.38 | 7.38 |
| 26 Mar 2024, 13:30 | 7.72 | 7.72 |
| 26 Mar 2024, 13:28 | 7.72 | 7.72 |
| 27 Feb 2024, 13:08 | 7.41 | 7.41 |
| 14 Feb 2024, 13:23 | 7.44 | 7.44 |
| 31 Jan 2024, 14:47 | 7.86 | 7.86 |
| 31 Jan 2024, 14:27 | 7.69 | 7.69 |
| 16 Jan 2024, 10:56 | 7.93 | 7.93 |
| 18 Dec 2023, 10:48 | 7.26 | 7.26 |
| 11 Dec 2023, 10:20 | 7.28 | 7.28 |
| 29 Nov 2023, 14:08 | 7.73 | 7.73 |
| 17 Nov 2023, 14:23 | 7.43 | 7.43 |
| 30 Oct 2023, 11:07 | 7.25 | 7.25 |
| 27 Oct 2023, 10:39 | 7.06 | 7.06 |
| 3 Oct 2023, 13:36 | 7.79 | 7.79 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 25 Mar 2026, 6 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 10:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jan 2026, 12:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Nov 2025, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Sep 2025, 12:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2025, 14:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jan 2025, 13:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Nov 2024, 13:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Sep 2024, 12:06 | 0.042 | 0.042 mg/l |
| 1 Aug 2024, 13:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jun 2024, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jun 2024, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Apr 2024, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2024, 09:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2024, 13:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2024, 13:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Feb 2024, 13:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Feb 2024, 13:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Jan 2024, 14:47 | 0.05 | 0.05 mg/l |
| 31 Jan 2024, 14:27 | 0.043 | 0.043 mg/l |
| 16 Jan 2024, 10:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Dec 2023, 10:48 | 0.037 | 0.037 mg/l |
| 11 Dec 2023, 10:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Nov 2023, 14:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Nov 2023, 14:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Oct 2023, 11:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Oct 2023, 10:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2023, 13:36 | <0.03 | below 0.03 mg/l (not detected above this) |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 25 Mar 2026, 6 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 10:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 22 Jan 2026, 12:13 | 0.012 | 0.012 mg/l |
| 21 Nov 2025, 11:55 | 0.01 | 0.01 mg/l |
| 26 Sep 2025, 12:20 | 0.013 | 0.013 mg/l |
| 20 Mar 2025, 14:50 | 0.01 | 0.01 mg/l |
| 22 Jan 2025, 13:31 | <0.01 | below 0.01 mg/l (not detected above this) |
| 28 Nov 2024, 13:33 | 0.028 | 0.028 mg/l |
| 27 Sep 2024, 12:06 | 0.028 | 0.028 mg/l |
| 1 Aug 2024, 13:01 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Jun 2024, 12:53 | <0.01 | below 0.01 mg/l (not detected above this) |
| 6 Jun 2024, 11:51 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Apr 2024, 11:03 | 0.057 | 0.057 mg/l |
| 4 Apr 2024, 09:16 | 0.076 | 0.076 mg/l |
| 26 Mar 2024, 13:30 | 0.029 | 0.029 mg/l |
| 26 Mar 2024, 13:28 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Feb 2024, 13:08 | 0.089 | 0.089 mg/l |
| 14 Feb 2024, 13:23 | 0.037 | 0.037 mg/l |
| 31 Jan 2024, 14:47 | 0.012 | 0.012 mg/l |
| 31 Jan 2024, 14:27 | 0.012 | 0.012 mg/l |
| 16 Jan 2024, 10:56 | 0.06 | 0.06 mg/l |
| 18 Dec 2023, 10:48 | 0.34 | 0.34 mg/l |
| 11 Dec 2023, 10:20 | 0.15 | 0.15 mg/l |
| 29 Nov 2023, 14:08 | <0.01 | below 0.01 mg/l (not detected above this) |
| 17 Nov 2023, 14:23 | 0.022 | 0.022 mg/l |
| 30 Oct 2023, 11:07 | 0.034 | 0.034 mg/l |
| 27 Oct 2023, 10:39 | 0.093 | 0.093 mg/l |
| 3 Oct 2023, 13:36 | 0.011 | 0.011 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
334 µS/cm
Sampled 31 Jul 2026, 2 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 31 Jul 2026, 12:11 | 334 | 334 µS/cm |
| 21 May 2026, 11:47 | 326 | 326 µS/cm |
| 25 Mar 2026, 10:46 | 295 | 295 µS/cm |
| 22 Jan 2026, 12:13 | 275 | 275 µS/cm |
| 21 Nov 2025, 11:55 | 255 | 255 µS/cm |
| 26 Sep 2025, 12:20 | 335 | 335 µS/cm |
| 20 Mar 2025, 14:50 | 393 | 393 µS/cm |
| 22 Jan 2025, 13:31 | 284 | 284 µS/cm |
| 28 Nov 2024, 13:33 | 258 | 258 µS/cm |
| 27 Sep 2024, 12:06 | 280 | 280 µS/cm |
| 1 Aug 2024, 13:01 | 320 | 320 µS/cm |
| 21 Jun 2024, 12:53 | 306 | 306 µS/cm |
| 6 Jun 2024, 11:51 | 308 | 308 µS/cm |
| 12 Apr 2024, 11:03 | 265 | 265 µS/cm |
| 4 Apr 2024, 09:16 | 265 | 265 µS/cm |
| 26 Mar 2024, 13:30 | 272 | 272 µS/cm |
| 26 Mar 2024, 13:28 | 272 | 272 µS/cm |
| 27 Feb 2024, 13:08 | 248 | 248 µS/cm |
| 14 Feb 2024, 13:23 | 258 | 258 µS/cm |
| 31 Jan 2024, 14:47 | 292 | 292 µS/cm |
| 31 Jan 2024, 14:27 | 299 | 299 µS/cm |
| 16 Jan 2024, 10:56 | 322 | 322 µS/cm |
| 18 Dec 2023, 10:48 | 264 | 264 µS/cm |
| 11 Dec 2023, 10:20 | 259 | 259 µS/cm |
| 29 Nov 2023, 14:08 | 284 | 284 µS/cm |
| 17 Nov 2023, 14:23 | 264 | 264 µS/cm |
| 30 Oct 2023, 11:07 | 276 | 276 µS/cm |
| 27 Oct 2023, 10:39 | 269 | 269 µS/cm |
| 3 Oct 2023, 13:36 | 317 | 317 µS/cm |
Everything measured here
53 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 53 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 29 | Oct 2023 – Jul 2026 | 98.3% 31 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 26 | Oct 2023 – Mar 2026 | 11 mg/l 25 Mar 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – Jul 2026 | 13 °C 31 Jul 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Jul 2026 | 7.8 31 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – Mar 2026 | below 0.03 mg/l 25 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Mar 2026 | below 0.01 mg/l 25 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – Jul 2026 | 334 µS/cm 31 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Oct 2023 – Mar 2026 | 62 mg/l 25 Mar 2026 |
| Aluminium 6057 | River water | 27 | Oct 2023 – Mar 2026 | 24 µg/l 25 Mar 2026 |
| Aluminium, Dissolved 6037 | River water | 27 | Oct 2023 – Mar 2026 | below 20 µg/l 25 Mar 2026 |
| Barium 6062 | River water | 27 | Oct 2023 – Mar 2026 | 100 µg/l 25 Mar 2026 |
| Barium, Dissolved 9446 | River water | 29 | Oct 2023 – Jul 2026 | 91 µg/l 31 Jul 2026 |
| Boron 6059 | River water | 27 | Oct 2023 – Mar 2026 | below 100 µg/l 25 Mar 2026 |
| Boron, Dissolved 9447 | River water | 29 | Oct 2023 – Jul 2026 | below 100 µg/l 31 Jul 2026 |
| Cadmium 0108 | River water | 29 | Oct 2023 – Jul 2026 | 13 µg/l 31 Jul 2026 |
| Cadmium, Dissolved 0106 | River water | 29 | Oct 2023 – Jul 2026 | 12 µg/l 31 Jul 2026 |
| Calcium 0241 | River water | 27 | Oct 2023 – Mar 2026 | 36 mg/l 25 Mar 2026 |
| Calcium, Dissolved 0239 | River water | 29 | Oct 2023 – Jul 2026 | 45 mg/l 31 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 7 | Mar 2025 – Jul 2026 | 1.5 mg/l 31 Jul 2026 |
| Chloride 0172 | River water | 27 | Oct 2023 – Mar 2026 | 15 mg/l 25 Mar 2026 |
| Chromium 3164 | River water | 27 | Oct 2023 – Mar 2026 | below 0.5 µg/l 25 Mar 2026 |
| Chromium, Dissolved 3409 | River water | 27 | Oct 2023 – Mar 2026 | below 0.5 µg/l 25 Mar 2026 |
| Copper 6452 | River water | 29 | Oct 2023 – Jul 2026 | 1.1 µg/l 31 Jul 2026 |
| Copper, Dissolved 6450 | River water | 29 | Oct 2023 – Jul 2026 | below 1 µg/l 31 Jul 2026 |
| Hardness, Total as CaCO3 0158 | River water | 29 | Oct 2023 – Jul 2026 | 128 mg/l 31 Jul 2026 |
| Ionic Balance 7044 | River water | 27 | Oct 2023 – Mar 2026 | -1.27% 25 Mar 2026 |
| Iron 6051 | River water | 27 | Oct 2023 – Mar 2026 | 87 µg/l 25 Mar 2026 |
| Iron, Dissolved 6460 | River water | 29 | Oct 2023 – Jul 2026 | below 30 µg/l 31 Jul 2026 |
| Lead 0050 | River water | 29 | Oct 2023 – Jul 2026 | 47 µg/l 31 Jul 2026 |
| Lead, Dissolved 0052 | River water | 29 | Oct 2023 – Jul 2026 | 7.5 µg/l 31 Jul 2026 |
| Lithium 6064 | River water | 27 | Oct 2023 – Mar 2026 | below 100 µg/l 25 Mar 2026 |
| Lithium, Dissolved 4201 | River water | 29 | Oct 2023 – Jul 2026 | below 100 µg/l 31 Jul 2026 |
| Magnesium 0237 | River water | 27 | Oct 2023 – Mar 2026 | 3.4 mg/l 25 Mar 2026 |
| Magnesium, Dissolved 0235 | River water | 29 | Oct 2023 – Jul 2026 | 3.7 mg/l 31 Jul 2026 |
| Manganese 6050 | River water | 27 | Oct 2023 – Mar 2026 | 60 µg/l 25 Mar 2026 |
| Manganese, Dissolved 6458 | River water | 29 | Oct 2023 – Jul 2026 | 76 µg/l 31 Jul 2026 |
| Nickel 6462 | River water | 29 | Oct 2023 – Jul 2026 | 8.5 µg/l 31 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 29 | Oct 2023 – Jul 2026 | 8.5 µg/l 31 Jul 2026 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – Mar 2026 | below 0.004 mg/l 25 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Mar 2026 | 0.71 mg/l 25 Mar 2026 |
| pH : In Situ 3169 | River water | 4 | Jan 2026 – Jul 2026 | 8.28 31 Jul 2026 |
| Potassium 0211 | River water | 27 | Oct 2023 – Mar 2026 | 1.8 mg/l 25 Mar 2026 |
| Potassium, Dissolved 0209 | River water | 29 | Oct 2023 – Jul 2026 | 3.2 mg/l 31 Jul 2026 |
| Silica, reactive as SiO2 0182 | River water | 27 | Oct 2023 – Mar 2026 | 15 mg/l 25 Mar 2026 |
| Sodium 0207 | River water | 27 | Oct 2023 – Mar 2026 | 12 mg/l 25 Mar 2026 |
| Sodium, Dissolved 0205 | River water | 29 | Oct 2023 – Jul 2026 | 13 mg/l 31 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 29 | Oct 2023 – Jul 2026 | 4.9 mg/l 31 Jul 2026 |
| Strontium 6063 | River water | 27 | Oct 2023 – Mar 2026 | 95 µg/l 25 Mar 2026 |
| Strontium, Filtered 6693 | River water | 29 | Oct 2023 – Jul 2026 | 120 µg/l 31 Jul 2026 |
| Sulphate as SO4 0183 | River water | 27 | Oct 2023 – Mar 2026 | 48 mg/l 25 Mar 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 2 | May 2026 – Jul 2026 | 57 mg/l 31 Jul 2026 |
| Zinc 6455 | River water | 29 | Oct 2023 – Jul 2026 | 3100 µg/l 31 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 29 | Oct 2023 – Jul 2026 | 3000 µg/l 31 Jul 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.