Halewood Brook upstream of Woolton waste water treatment works
EA name: HALEWOOD BROOK U/S WOOLTON WWTW
Environment Agency sampling point NW-88020453 · 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
- 1 May 2026, 10:035 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
- 24 since 25 Jun 2024 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 343599, 387457As published, to the nearest 1 m. Open in a map
- River, by its own name
- Halewood 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) (12 samples)
Environmental monitoring statutory (EU directives) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
53.4%
Sampled 1 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 53.4 | 53.4% |
| 22 Apr 2026, 10:53 | 41.6 | 41.6% |
| 11 Mar 2026, 10:39 | 71.3 | 71.3% |
| 13 Feb 2026, 11:34 | 84.3 | 84.3% |
| 8 Dec 2025, 11:33 | 70.5 | 70.5% |
| 10 Nov 2025, 11:09 | 77.3 | 77.3% |
| 14 Oct 2025, 12:09 | 36.2 | 36.2% |
| 8 Sep 2025, 09:56 | 39.5 | 39.5% |
| 14 Aug 2025, 11:54 | 22.8 | 22.8% |
| 8 Jul 2025, 10:53 | 27 | 27% |
| 9 Jun 2025, 09:57 | 48.2 | 48.2% |
| 9 May 2025, 10:00 | 45.2 | 45.2% |
| 1 Apr 2025, 09:58 | 51.4 | 51.4% |
| 7 Mar 2025, 10:16 | 49.9 | 49.9% |
| 18 Feb 2025, 09:47 | 70.2 | 70.2% |
| 28 Jan 2025, 12:43 | 79.7 | 79.7% |
| 2 Dec 2024, 12:11 | 81.8 | 81.8% |
| 18 Nov 2024, 10:49 | 74.2 | 74.2% |
| 14 Oct 2024, 11:57 | 43.2 | 43.2% |
| 16 Sep 2024, 11:58 | 48.5 | 48.5% |
| 22 Aug 2024, 09:51 | 45.7 | 45.7% |
| 23 Jul 2024, 12:31 | 57.3 | 57.3% |
| 25 Jun 2024, 12:54 | 63.9 | 63.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.97 mg/l
Sampled 1 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 5.97 | 5.97 mg/l |
| 22 Apr 2026, 10:53 | 4.72 | 4.72 mg/l |
| 11 Mar 2026, 10:39 | 8.24 | 8.24 mg/l |
| 13 Feb 2026, 11:34 | 10.2 | 10.2 mg/l |
| 8 Dec 2025, 11:33 | 7.85 | 7.85 mg/l |
| 10 Nov 2025, 11:09 | 8.18 | 8.18 mg/l |
| 14 Oct 2025, 12:09 | 3.87 | 3.87 mg/l |
| 8 Sep 2025, 09:56 | 4.11 | 4.11 mg/l |
| 14 Aug 2025, 11:54 | 2.21 | 2.21 mg/l |
| 8 Jul 2025, 10:53 | 2.77 | 2.77 mg/l |
| 9 Jun 2025, 09:57 | 5.11 | 5.11 mg/l |
| 9 May 2025, 10:00 | 5.2 | 5.2 mg/l |
| 1 Apr 2025, 09:58 | 6.11 | 6.11 mg/l |
| 7 Mar 2025, 10:16 | 5.72 | 5.72 mg/l |
| 18 Feb 2025, 09:47 | 8.84 | 8.84 mg/l |
| 28 Jan 2025, 12:43 | 9.29 | 9.29 mg/l |
| 2 Dec 2024, 12:11 | 9.11 | 9.11 mg/l |
| 18 Nov 2024, 10:49 | 8.18 | 8.18 mg/l |
| 14 Oct 2024, 11:57 | 4.7 | 4.7 mg/l |
| 16 Sep 2024, 11:58 | 5.01 | 5.01 mg/l |
| 22 Aug 2024, 09:51 | 4.74 | 4.74 mg/l |
| 23 Jul 2024, 12:31 | 5.78 | 5.78 mg/l |
| 25 Jun 2024, 12:54 | 6.07 | 6.07 mg/l |
Water temperature
code 0076 · °C
10.3 °C
Sampled 1 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 10.3 | 10.3 °C |
| 22 Apr 2026, 10:53 | 9.7 | 9.7 °C |
| 17 Apr 2026, 15:57 | 11.1 | 11.1 °C |
| 11 Mar 2026, 10:39 | 8.9 | 8.9 °C |
| 13 Feb 2026, 11:34 | 7.1 | 7.1 °C |
| 8 Dec 2025, 11:33 | 10.5 | 10.5 °C |
| 10 Nov 2025, 11:09 | 12.7 | 12.7 °C |
| 14 Oct 2025, 12:09 | 12.2 | 12.2 °C |
| 8 Sep 2025, 09:56 | 13.4 | 13.4 °C |
| 14 Aug 2025, 11:54 | 16.7 | 16.7 °C |
| 8 Jul 2025, 10:53 | 14.1 | 14.1 °C |
| 9 Jun 2025, 09:57 | 12.6 | 12.6 °C |
| 9 May 2025, 10:00 | 9.1 | 9.1 °C |
| 1 Apr 2025, 09:58 | 7.8 | 7.8 °C |
| 7 Mar 2025, 10:16 | 9.3 | 9.3 °C |
| 18 Feb 2025, 09:47 | 5.5 | 5.5 °C |
| 28 Jan 2025, 12:43 | 8.6 | 8.6 °C |
| 2 Dec 2024, 12:11 | 10.5 | 10.5 °C |
| 18 Nov 2024, 10:49 | 10.9 | 10.9 °C |
| 14 Oct 2024, 11:57 | 11.5 | 11.5 °C |
| 16 Sep 2024, 11:58 | 13.8 | 13.8 °C |
| 22 Aug 2024, 09:51 | 13.6 | 13.6 °C |
| 23 Jul 2024, 12:31 | 14.9 | 14.9 °C |
| 25 Jun 2024, 12:54 | 17.7 | 17.7 °C |
pH
code 0061
7.61
Sampled 1 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 7.61 | 7.61 |
| 22 Apr 2026, 10:53 | 7.24 | 7.24 |
| 17 Apr 2026, 15:57 | 7.63 | 7.63 |
| 11 Mar 2026, 10:39 | 7.74 | 7.74 |
| 13 Feb 2026, 11:34 | 7.38 | 7.38 |
| 8 Dec 2025, 11:33 | 7.64 | 7.64 |
| 10 Nov 2025, 11:09 | 7.82 | 7.82 |
| 14 Oct 2025, 12:09 | 7.12 | 7.12 |
| 8 Sep 2025, 09:56 | 7.7 | 7.7 |
| 14 Aug 2025, 11:54 | 7.42 | 7.42 |
| 8 Jul 2025, 10:53 | 7.51 | 7.51 |
| 9 Jun 2025, 09:57 | 7.7 | 7.7 |
| 9 May 2025, 10:00 | 7.51 | 7.51 |
| 1 Apr 2025, 09:58 | 7.62 | 7.62 |
| 7 Mar 2025, 10:16 | 7.48 | 7.48 |
| 18 Feb 2025, 09:47 | 7.71 | 7.71 |
| 28 Jan 2025, 12:43 | 7.51 | 7.51 |
| 2 Dec 2024, 12:11 | 7.49 | 7.49 |
| 18 Nov 2024, 10:49 | 7.53 | 7.53 |
| 14 Oct 2024, 11:57 | 7.25 | 7.25 |
| 16 Sep 2024, 11:58 | 7.33 | 7.33 |
| 22 Aug 2024, 09:51 | 7.45 | 7.45 |
| 23 Jul 2024, 12:31 | 7.7 | 7.7 |
| 25 Jun 2024, 12:54 | 7.78 | 7.78 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
2.8 mg/l
Sampled 1 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 2.8 | 2.8 mg/l |
| 22 Apr 2026, 10:53 | 5.8 | 5.8 mg/l |
| 17 Apr 2026, 15:57 | 2.7 | 2.7 mg/l |
| 11 Mar 2026, 10:39 | 1.3 | 1.3 mg/l |
| 13 Feb 2026, 11:34 | 0.24 | 0.24 mg/l |
| 8 Dec 2025, 11:33 | 0.46 | 0.46 mg/l |
| 10 Nov 2025, 11:09 | 0.19 | 0.19 mg/l |
| 14 Oct 2025, 12:09 | 2.5 | 2.5 mg/l |
| 8 Sep 2025, 09:56 | 1.3 | 1.3 mg/l |
| 14 Aug 2025, 11:54 | 4.7 | 4.7 mg/l |
| 8 Jul 2025, 10:53 | 2.4 | 2.4 mg/l |
| 9 Jun 2025, 09:57 | 1.2 | 1.2 mg/l |
| 9 May 2025, 10:00 | 4.9 | 4.9 mg/l |
| 7 Mar 2025, 10:16 | 2.9 | 2.9 mg/l |
| 18 Feb 2025, 09:47 | 1.3 | 1.3 mg/l |
| 28 Jan 2025, 12:43 | 0.3 | 0.3 mg/l |
| 2 Dec 2024, 12:11 | 0.22 | 0.22 mg/l |
| 18 Nov 2024, 10:49 | 0.26 | 0.26 mg/l |
| 14 Oct 2024, 11:57 | 4.1 | 4.1 mg/l |
| 16 Sep 2024, 11:58 | 2 | 2 mg/l |
| 22 Aug 2024, 09:51 | 2.7 | 2.7 mg/l |
| 23 Jul 2024, 12:31 | 1.5 | 1.5 mg/l |
| 25 Jun 2024, 12:54 | 0.62 | 0.62 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.893 mg/l
Sampled 1 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 0.893 | 0.893 mg/l |
| 22 Apr 2026, 10:53 | 0.687 | 0.687 mg/l |
| 17 Apr 2026, 15:57 | 1.27 | 1.27 mg/l |
| 11 Mar 2026, 10:39 | 2.03 | 2.03 mg/l |
| 13 Feb 2026, 11:34 | 5.12 | 5.12 mg/l |
| 8 Dec 2025, 11:33 | 2.97 | 2.97 mg/l |
| 10 Nov 2025, 11:09 | 2.64 | 2.64 mg/l |
| 14 Oct 2025, 12:09 | 1.2 | 1.2 mg/l |
| 8 Sep 2025, 09:56 | 0.8 | 0.8 mg/l |
| 14 Aug 2025, 11:54 | 0.856 | 0.856 mg/l |
| 8 Jul 2025, 10:53 | 0.27 | 0.27 mg/l |
| 9 Jun 2025, 09:57 | 0.96 | 0.96 mg/l |
| 9 May 2025, 10:00 | 1.03 | 1.03 mg/l |
| 7 Mar 2025, 10:16 | 1.32 | 1.32 mg/l |
| 18 Feb 2025, 09:47 | 1.42 | 1.42 mg/l |
| 28 Jan 2025, 12:43 | 3 | 3 mg/l |
| 18 Nov 2024, 10:49 | 3.05 | 3.05 mg/l |
| 14 Oct 2024, 11:57 | 1.2 | 1.2 mg/l |
| 16 Sep 2024, 11:58 | 1.5 | 1.5 mg/l |
| 22 Aug 2024, 09:51 | 1.22 | 1.22 mg/l |
| 23 Jul 2024, 12:31 | 1.86 | 1.86 mg/l |
| 25 Jun 2024, 12:54 | 2.56 | 2.56 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.62 mg/l
Sampled 1 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 0.62 | 0.62 mg/l |
| 22 Apr 2026, 10:53 | 0.68 | 0.68 mg/l |
| 17 Apr 2026, 15:57 | 0.49 | 0.49 mg/l |
| 11 Mar 2026, 10:39 | 0.36 | 0.36 mg/l |
| 13 Feb 2026, 11:34 | 0.14 | 0.14 mg/l |
| 8 Dec 2025, 11:33 | 0.14 | 0.14 mg/l |
| 10 Nov 2025, 11:09 | 0.14 | 0.14 mg/l |
| 14 Oct 2025, 12:09 | 0.43 | 0.43 mg/l |
| 8 Sep 2025, 09:56 | 0.26 | 0.26 mg/l |
| 14 Aug 2025, 11:54 | 1.1 | 1.1 mg/l |
| 8 Jul 2025, 10:53 | 0.73 | 0.73 mg/l |
| 9 Jun 2025, 09:57 | 0.44 | 0.44 mg/l |
| 9 May 2025, 10:00 | 0.85 | 0.85 mg/l |
| 7 Mar 2025, 10:16 | 0.36 | 0.36 mg/l |
| 18 Feb 2025, 09:47 | 0.3 | 0.3 mg/l |
| 28 Jan 2025, 12:43 | 0.18 | 0.18 mg/l |
| 2 Dec 2024, 12:11 | 0.13 | 0.13 mg/l |
| 18 Nov 2024, 10:49 | 0.13 | 0.13 mg/l |
| 14 Oct 2024, 11:57 | 0.63 | 0.63 mg/l |
| 16 Sep 2024, 11:58 | 0.31 | 0.31 mg/l |
| 22 Aug 2024, 09:51 | 0.7 | 0.7 mg/l |
| 23 Jul 2024, 12:31 | 0.38 | 0.38 mg/l |
| 25 Jun 2024, 12:54 | 0.5 | 0.5 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
758 µS/cm
Sampled 1 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2026, 10:03 | 758 | 758 µS/cm |
| 22 Apr 2026, 10:53 | 775 | 775 µS/cm |
| 11 Mar 2026, 10:39 | 695 | 695 µS/cm |
| 13 Feb 2026, 11:34 | 476 | 476 µS/cm |
| 8 Dec 2025, 11:33 | 636 | 636 µS/cm |
| 10 Nov 2025, 11:09 | 636 | 636 µS/cm |
| 14 Oct 2025, 12:09 | 828 | 828 µS/cm |
| 8 Sep 2025, 09:56 | 595 | 595 µS/cm |
| 14 Aug 2025, 11:54 | 693 | 693 µS/cm |
| 8 Jul 2025, 10:53 | 600 | 600 µS/cm |
| 9 Jun 2025, 09:57 | 860 | 860 µS/cm |
| 9 May 2025, 10:00 | 822 | 822 µS/cm |
| 1 Apr 2025, 09:58 | 795 | 795 µS/cm |
| 7 Mar 2025, 10:16 | 1920 | 1920 µS/cm |
| 18 Feb 2025, 09:47 | 770 | 770 µS/cm |
| 28 Jan 2025, 12:43 | 626 | 626 µS/cm |
| 2 Dec 2024, 12:11 | 403 | 403 µS/cm |
| 18 Nov 2024, 10:49 | 534 | 534 µS/cm |
| 14 Oct 2024, 11:57 | 749 | 749 µS/cm |
| 16 Sep 2024, 11:58 | 884 | 884 µS/cm |
| 22 Aug 2024, 09:51 | 767 | 767 µS/cm |
| 23 Jul 2024, 12:31 | 712 | 712 µS/cm |
| 25 Jun 2024, 12:54 | 720 | 720 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Jun 2024 – May 2026 | 53.4% 1 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jun 2024 – May 2026 | 5.97 mg/l 1 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 10.3 °C 1 May 2026 |
| pH 0061 | River water | 24 | Jun 2024 – May 2026 | 7.61 1 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jun 2024 – May 2026 | 2.8 mg/l 1 May 2026 |
| Nitrate as N 0117 | River water | 22 | Jun 2024 – May 2026 | 0.893 mg/l 1 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jun 2024 – May 2026 | 0.62 mg/l 1 May 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jun 2024 – May 2026 | 758 µS/cm 1 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Jun 2024 – May 2026 | 260 mg/l 1 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jun 2024 – May 2026 | 0.0215 mg/l 1 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | below 6 mg/l 1 May 2026 |
| Chloride 0172 | River water | 11 | May 2025 – Apr 2026 | 52 mg/l 22 Apr 2026 |
| Nitrite as N 0118 | River water | 22 | Jun 2024 – May 2026 | 0.067 mg/l 1 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jun 2024 – May 2026 | 0.96 mg/l 1 May 2026 |
| Solids, Suspended at 105 C 0135 | River water | 11 | May 2025 – Apr 2026 | 11 mg/l 22 Apr 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.