Rea Brook at Malehust
EA name: REA BROOK AT MALEHUST
Environment Agency sampling point MD-29272820 · 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
- 21 Sep 2026, 14:2617 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 14 since 14 Jun 2024 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives) · results completed 23 Sep 2026
- Where
- National Grid 338300, 306400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Rea Brook
- River, by the map
- Rea BrookPlaced on the river its name gives, 27 m from the line.
- Next gauge downstream
- Farley Bridge On the Rea Brook · 1.9 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (14 samples)
Results here were completed a median of 2 days after the sample was taken (2 to 6 days, 4 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
83.9%
Sampled 21 Sep 2026, 17 days ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 83.9 | 83.9% |
| 27 Aug 2026, 12:42 | 62.1 | 62.1% |
| 30 Jul 2026, 11:27 | 65.8 | 65.8% |
| 28 May 2026, 12:25 | 75.5 | 75.5% |
| 12 Mar 2025, 09:06 | 93.9 | 93.9% |
| 25 Feb 2025, 09:41 | 94 | 94% |
| 2 Jan 2025, 12:03 | 93.4 | 93.4% |
| 6 Dec 2024, 11:10 | 83.4 | 83.4% |
| 5 Nov 2024, 13:36 | 83.4 | 83.4% |
| 3 Oct 2024, 12:23 | 82 | 82% |
| 3 Sep 2024, 14:27 | 66 | 66% |
| 2 Aug 2024, 08:28 | 78.1 | 78.1% |
| 5 Jul 2024, 11:09 | 86 | 86% |
| 14 Jun 2024, 10:57 | 85.6 | 85.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.31 mg/l
Sampled 21 Sep 2026, 17 days ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 8.31 | 8.31 mg/l |
| 27 Aug 2026, 12:42 | 5.99 | 5.99 mg/l |
| 30 Jul 2026, 11:27 | 6.23 | 6.23 mg/l |
| 28 May 2026, 12:25 | 6.97 | 6.97 mg/l |
| 12 Mar 2025, 09:06 | 11.9 | 11.9 mg/l |
| 25 Feb 2025, 09:41 | 11.6 | 11.6 mg/l |
| 2 Jan 2025, 12:03 | 11.7 | 11.7 mg/l |
| 6 Dec 2024, 11:10 | 10.1 | 10.1 mg/l |
| 5 Nov 2024, 13:36 | 9.22 | 9.22 mg/l |
| 3 Oct 2024, 12:23 | 9.19 | 9.19 mg/l |
| 3 Sep 2024, 14:27 | 6.48 | 6.48 mg/l |
| 2 Aug 2024, 08:28 | 7.56 | 7.56 mg/l |
| 5 Jul 2024, 11:09 | 8.82 | 8.82 mg/l |
| 14 Jun 2024, 10:57 | 9.12 | 9.12 mg/l |
Water temperature
code 0076 · °C
15.7 °C
Sampled 21 Sep 2026, 17 days ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 15.7 | 15.7 °C |
| 27 Aug 2026, 12:42 | 17 | 17 °C |
| 30 Jul 2026, 11:27 | 17.9 | 17.9 °C |
| 28 May 2026, 12:25 | 19.1 | 19.1 °C |
| 12 Mar 2025, 09:06 | 5.3 | 5.3 °C |
| 25 Feb 2025, 09:41 | 6.2 | 6.2 °C |
| 2 Jan 2025, 12:03 | 5.8 | 5.8 °C |
| 6 Dec 2024, 11:10 | 7.1 | 7.1 °C |
| 5 Nov 2024, 13:36 | 10.8 | 10.8 °C |
| 3 Oct 2024, 12:23 | 10.2 | 10.2 °C |
| 3 Sep 2024, 14:27 | 16.1 | 16.1 °C |
| 2 Aug 2024, 08:28 | 16.8 | 16.8 °C |
| 5 Jul 2024, 11:09 | 14.1 | 14.1 °C |
| 14 Jun 2024, 10:57 | 12.4 | 12.4 °C |
pH
code 0061
7.85
Sampled 21 Sep 2026, 17 days ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 7.85 | 7.85 |
| 27 Aug 2026, 12:42 | 7.65 | 7.65 |
| 30 Jul 2026, 11:27 | 7.65 | 7.65 |
| 28 May 2026, 12:25 | 7.67 | 7.67 |
| 12 Mar 2025, 09:06 | 7.8 | 7.8 |
| 25 Feb 2025, 09:41 | 7.65 | 7.65 |
| 2 Jan 2025, 12:03 | 7.52 | 7.52 |
| 6 Dec 2024, 11:10 | 7.26 | 7.26 |
| 5 Nov 2024, 13:36 | 7.68 | 7.68 |
| 3 Oct 2024, 12:23 | 7.39 | 7.39 |
| 3 Sep 2024, 14:27 | 7.5 | 7.5 |
| 2 Aug 2024, 08:28 | 8.01 | 8.01 |
| 5 Jul 2024, 11:09 | 8.01 | 8.01 |
| 14 Jun 2024, 10:57 | 7.86 | 7.86 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 21 Sep 2026, 17 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Aug 2026, 12:42 | 0.033 | 0.033 mg/l |
| 30 Jul 2026, 11:27 | 0.036 | 0.036 mg/l |
| 28 May 2026, 12:25 | 0.076 | 0.076 mg/l |
| 12 Mar 2025, 09:06 | 0.12 | 0.12 mg/l |
| 25 Feb 2025, 09:41 | 0.13 | 0.13 mg/l |
| 2 Jan 2025, 12:03 | 0.12 | 0.12 mg/l |
| 5 Nov 2024, 13:36 | 0.17 | 0.17 mg/l |
| 3 Oct 2024, 12:23 | 0.12 | 0.12 mg/l |
| 3 Sep 2024, 14:27 | 0.29 | 0.29 mg/l |
| 2 Aug 2024, 08:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jul 2024, 11:09 | 0.043 | 0.043 mg/l |
| 14 Jun 2024, 10:57 | 0.075 | 0.075 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.49 mg/l
Sampled 21 Sep 2026, 17 days ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 1.49 | 1.49 mg/l |
| 27 Aug 2026, 12:42 | 1.69 | 1.69 mg/l |
| 30 Jul 2026, 11:27 | 1.79 | 1.79 mg/l |
| 28 May 2026, 12:25 | 2.32 | 2.32 mg/l |
| 12 Mar 2025, 09:06 | 3.27 | 3.27 mg/l |
| 25 Feb 2025, 09:41 | 3.57 | 3.57 mg/l |
| 2 Jan 2025, 12:03 | 4.18 | 4.18 mg/l |
| 6 Dec 2024, 11:10 | 4.18 | 4.18 mg/l |
| 5 Nov 2024, 13:36 | 2.64 | 2.64 mg/l |
| 3 Oct 2024, 12:23 | 3.35 | 3.35 mg/l |
| 3 Sep 2024, 14:27 | 4.81 | 4.81 mg/l |
| 2 Aug 2024, 08:28 | 2.28 | 2.28 mg/l |
| 5 Jul 2024, 11:09 | 2.67 | 2.67 mg/l |
| 14 Jun 2024, 10:57 | 2.75 | 2.75 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.13 mg/l
Sampled 21 Sep 2026, 17 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 0.13 | 0.13 mg/l |
| 27 Aug 2026, 12:42 | 0.12 | 0.12 mg/l |
| 30 Jul 2026, 11:27 | 0.12 | 0.12 mg/l |
| 28 May 2026, 12:25 | 0.19 | 0.19 mg/l |
| 12 Mar 2025, 09:06 | 0.081 | 0.081 mg/l |
| 25 Feb 2025, 09:41 | 0.21 | 0.21 mg/l |
| 2 Jan 2025, 12:03 | 0.11 | 0.11 mg/l |
| 5 Nov 2024, 13:36 | 0.29 | 0.29 mg/l |
| 3 Oct 2024, 12:23 | 0.25 | 0.25 mg/l |
| 3 Sep 2024, 14:27 | 0.5 | 0.5 mg/l |
| 2 Aug 2024, 08:28 | 0.44 | 0.44 mg/l |
| 5 Jul 2024, 11:09 | 0.38 | 0.38 mg/l |
| 14 Jun 2024, 10:57 | 0.36 | 0.36 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
741 µS/cm
Sampled 21 Sep 2026, 17 days ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 14:26 | 741 | 741 µS/cm |
| 27 Aug 2026, 12:42 | 799 | 799 µS/cm |
| 30 Jul 2026, 11:27 | 721 | 721 µS/cm |
| 28 May 2026, 12:25 | 557 | 557 µS/cm |
| 12 Mar 2025, 09:06 | 498 | 498 µS/cm |
| 25 Feb 2025, 09:41 | 368 | 368 µS/cm |
| 2 Jan 2025, 12:03 | 355 | 355 µS/cm |
| 6 Dec 2024, 11:10 | 326 | 326 µS/cm |
| 5 Nov 2024, 13:36 | 495 | 495 µS/cm |
| 3 Oct 2024, 12:23 | 434 | 434 µS/cm |
| 3 Sep 2024, 14:27 | 495 | 495 µS/cm |
| 2 Aug 2024, 08:28 | 590 | 590 µS/cm |
| 5 Jul 2024, 11:09 | 597 | 597 µS/cm |
| 14 Jun 2024, 10:57 | 580 | 580 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 14 | Jun 2024 – Sep 2026 | 83.9% 21 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 14 | Jun 2024 – Sep 2026 | 8.31 mg/l 21 Sep 2026 |
| Temperature of Water 0076 | River water | 14 | Jun 2024 – Sep 2026 | 15.7 °C 21 Sep 2026 |
| pH 0061 | River water | 14 | Jun 2024 – Sep 2026 | 7.85 21 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 13 | Jun 2024 – Sep 2026 | below 0.03 mg/l 21 Sep 2026 |
| Nitrate as N 0117 | River water | 14 | Jun 2024 – Sep 2026 | 1.49 mg/l 21 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 13 | Jun 2024 – Sep 2026 | 0.13 mg/l 21 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 14 | Jun 2024 – Sep 2026 | 741 µS/cm 21 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 14 | Jun 2024 – Sep 2026 | 190 mg/l 21 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 13 | Jun 2024 – Sep 2026 | below 0.00059 mg/l 21 Sep 2026 |
| Nitrite as N 0118 | River water | 14 | Jun 2024 – Sep 2026 | 0.0051 mg/l 21 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 14 | Jun 2024 – Sep 2026 | 1.5 mg/l 21 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.