Sankey Brook at Alder Lane Bridge Burtonwood
EA name: SANKEY BROOK AT ALDER LANE BRIDGE BURTON (also listed as “SANKEY BROOK AT ALDER LANE BRIDGE BURTONWOOD”)
Environment Agency sampling point NW-88002698 · 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
- 17 Mar 2025, 12:1619 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 8 Oct 2026 and had nothing newer.
- Samples banked
- 18 since 18 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 358576, 392900As published, to the nearest 1 m. Open in a map
- River, by its own name
- Sankey Brook
- River, by the map
- Sankey BrookPlaced on the river its name gives, 21 m from the line.
- Next gauge downstream
- Causey Bridge On the Sankey Brook · 0.7 km along the river
- Nearest gauge upstream
- Lincoln Drive On the Millingford Brook · 9.9 km along the riverEllamsbridge Road, St Helens On the Sutton Mill Brook · 11 km along the river
- Why it was sampled
- Monitoring (national agency policy) (18 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.5%
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 93.5 | 93.5% |
| 18 Feb 2025, 10:27 | 93.7 | 93.7% |
| 21 Jan 2025, 13:29 | 90.8 | 90.8% |
| 6 Dec 2024, 13:22 | 93.4 | 93.4% |
| 20 Nov 2024, 13:15 | 91.3 | 91.3% |
| 21 Oct 2024, 14:40 | 92.1 | 92.1% |
| 23 Sep 2024, 10:07 | 82.3 | 82.3% |
| 22 Aug 2024, 11:14 | 83.5 | 83.5% |
| 22 Jul 2024, 10:35 | 79.4 | 79.4% |
| 17 Jun 2024, 11:38 | 88.1 | 88.1% |
| 13 May 2024, 11:57 | 79.8 | 79.8% |
| 16 Apr 2024, 12:21 | 92 | 92% |
| 21 Mar 2024, 09:24 | 92 | 92% |
| 21 Feb 2024, 10:49 | 90.9 | 90.9% |
| 15 Jan 2024, 09:52 | 88 | 88% |
| 4 Dec 2023, 13:44 | 92.3 | 92.3% |
| 20 Nov 2023, 13:24 | 87 | 87% |
| 18 Oct 2023, 13:18 | 91.7 | 91.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.9 mg/l
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 10.9 | 10.9 mg/l |
| 18 Feb 2025, 10:27 | 11.8 | 11.8 mg/l |
| 21 Jan 2025, 13:29 | 11 | 11 mg/l |
| 6 Dec 2024, 13:22 | 10.9 | 10.9 mg/l |
| 20 Nov 2024, 13:15 | 11 | 11 mg/l |
| 21 Oct 2024, 14:40 | 9.79 | 9.79 mg/l |
| 23 Sep 2024, 10:07 | 8.3 | 8.3 mg/l |
| 22 Aug 2024, 11:14 | 8.22 | 8.22 mg/l |
| 22 Jul 2024, 10:35 | 7.7 | 7.7 mg/l |
| 17 Jun 2024, 11:38 | 8.86 | 8.86 mg/l |
| 13 May 2024, 11:57 | 7.91 | 7.91 mg/l |
| 16 Apr 2024, 12:21 | 10.3 | 10.3 mg/l |
| 21 Mar 2024, 09:24 | 10.5 | 10.5 mg/l |
| 21 Feb 2024, 10:49 | 10.5 | 10.5 mg/l |
| 15 Jan 2024, 09:52 | 11 | 11 mg/l |
| 4 Dec 2023, 13:44 | 11.1 | 11.1 mg/l |
| 20 Nov 2023, 13:24 | 9.66 | 9.66 mg/l |
| 18 Oct 2023, 13:18 | 9.73 | 9.73 mg/l |
Water temperature
code 0076 · °C
8.4 °C
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 8.4 | 8.4 °C |
| 18 Feb 2025, 10:27 | 5.6 | 5.6 °C |
| 21 Jan 2025, 13:29 | 7 | 7 °C |
| 6 Dec 2024, 13:22 | 8.4 | 8.4 °C |
| 20 Nov 2024, 13:15 | 7.1 | 7.1 °C |
| 21 Oct 2024, 14:40 | 12.5 | 12.5 °C |
| 23 Sep 2024, 10:07 | 14.9 | 14.9 °C |
| 22 Aug 2024, 11:14 | 16 | 16 °C |
| 22 Jul 2024, 10:35 | 16.7 | 16.7 °C |
| 17 Jun 2024, 11:38 | 15 | 15 °C |
| 13 May 2024, 11:57 | 15.7 | 15.7 °C |
| 16 Apr 2024, 12:21 | 10.2 | 10.2 °C |
| 21 Mar 2024, 09:24 | 9.6 | 9.6 °C |
| 21 Feb 2024, 10:49 | 9 | 9 °C |
| 15 Jan 2024, 09:52 | 5.7 | 5.7 °C |
| 4 Dec 2023, 13:44 | 7.5 | 7.5 °C |
| 20 Nov 2023, 13:24 | 10.6 | 10.6 °C |
| 18 Oct 2023, 13:18 | 12.6 | 12.6 °C |
pH
code 0061
7.69
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 7.69 | 7.69 |
| 18 Feb 2025, 10:27 | 7.82 | 7.82 |
| 21 Jan 2025, 13:29 | 7.72 | 7.72 |
| 6 Dec 2024, 13:22 | 7.55 | 7.55 |
| 20 Nov 2024, 13:15 | 7.81 | 7.81 |
| 21 Oct 2024, 14:40 | 7.64 | 7.64 |
| 23 Sep 2024, 10:07 | 7.63 | 7.63 |
| 22 Aug 2024, 11:14 | 7.56 | 7.56 |
| 22 Jul 2024, 10:35 | 7.89 | 7.89 |
| 17 Jun 2024, 11:38 | 7.83 | 7.83 |
| 13 May 2024, 11:57 | 7.58 | 7.58 |
| 16 Apr 2024, 12:21 | 7.79 | 7.79 |
| 21 Mar 2024, 09:24 | 7.63 | 7.63 |
| 21 Feb 2024, 10:49 | 7.56 | 7.56 |
| 15 Jan 2024, 09:52 | 7.86 | 7.86 |
| 4 Dec 2023, 13:44 | 7.65 | 7.65 |
| 20 Nov 2023, 13:24 | 7.48 | 7.48 |
| 18 Oct 2023, 13:18 | 7.77 | 7.77 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.15 mg/l
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 0.15 | 0.15 mg/l |
| 18 Feb 2025, 10:27 | 0.2 | 0.2 mg/l |
| 21 Jan 2025, 13:29 | 0.3 | 0.3 mg/l |
| 6 Dec 2024, 13:22 | 0.12 | 0.12 mg/l |
| 20 Nov 2024, 13:15 | 0.095 | 0.095 mg/l |
| 21 Oct 2024, 14:40 | 0.083 | 0.083 mg/l |
| 23 Sep 2024, 10:07 | 0.072 | 0.072 mg/l |
| 22 Aug 2024, 11:14 | 0.053 | 0.053 mg/l |
| 22 Jul 2024, 10:35 | 0.067 | 0.067 mg/l |
| 17 Jun 2024, 11:38 | 0.071 | 0.071 mg/l |
| 13 May 2024, 11:57 | 0.65 | 0.65 mg/l |
| 16 Apr 2024, 12:21 | 0.14 | 0.14 mg/l |
| 21 Mar 2024, 09:24 | 0.1 | 0.1 mg/l |
| 21 Feb 2024, 10:49 | 0.19 | 0.19 mg/l |
| 15 Jan 2024, 09:52 | 0.25 | 0.25 mg/l |
| 4 Dec 2023, 13:44 | 0.2 | 0.2 mg/l |
| 20 Nov 2023, 13:24 | 0.09 | 0.09 mg/l |
| 18 Oct 2023, 13:18 | 0.075 | 0.075 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
11.9 mg/l
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 11.9 | 11.9 mg/l |
| 18 Feb 2025, 10:27 | 11 | 11 mg/l |
| 21 Jan 2025, 13:29 | 5.98 | 5.98 mg/l |
| 6 Dec 2024, 13:22 | 4.57 | 4.57 mg/l |
| 20 Nov 2024, 13:15 | 5.85 | 5.85 mg/l |
| 21 Oct 2024, 14:40 | 6.16 | 6.16 mg/l |
| 23 Sep 2024, 10:07 | 6.26 | 6.26 mg/l |
| 22 Aug 2024, 11:14 | 12.9 | 12.9 mg/l |
| 22 Jul 2024, 10:35 | 8.12 | 8.12 mg/l |
| 17 Jun 2024, 11:38 | 9.23 | 9.23 mg/l |
| 13 May 2024, 11:57 | 8.43 | 8.43 mg/l |
| 16 Apr 2024, 12:21 | 4.75 | 4.75 mg/l |
| 21 Mar 2024, 09:24 | 4.46 | 4.46 mg/l |
| 21 Feb 2024, 10:49 | 4.07 | 4.07 mg/l |
| 15 Jan 2024, 09:52 | 6.44 | 6.44 mg/l |
| 4 Dec 2023, 13:44 | 5.83 | 5.83 mg/l |
| 20 Nov 2023, 13:24 | 3.78 | 3.78 mg/l |
| 18 Oct 2023, 13:18 | 6.15 | 6.15 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
1.4 mg/l
Sampled 17 Mar 2025, 19 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 1.4 | 1.4 mg/l |
| 18 Feb 2025, 10:27 | 1.1 | 1.1 mg/l |
| 21 Jan 2025, 13:29 | 0.45 | 0.45 mg/l |
| 20 Nov 2024, 13:15 | 0.18 | 0.18 mg/l |
| 21 Oct 2024, 14:40 | 0.097 | 0.097 mg/l |
| 23 Sep 2024, 10:07 | 0.84 | 0.84 mg/l |
| 22 Aug 2024, 11:14 | 1.8 | 1.8 mg/l |
| 22 Jul 2024, 10:35 | 0.87 | 0.87 mg/l |
| 17 Jun 2024, 11:38 | 0.96 | 0.96 mg/l |
| 13 May 2024, 11:57 | 1.2 | 1.2 mg/l |
| 16 Apr 2024, 12:21 | 0.34 | 0.34 mg/l |
| 21 Mar 2024, 09:24 | 0.33 | 0.33 mg/l |
| 21 Feb 2024, 10:49 | 0.29 | 0.29 mg/l |
| 15 Jan 2024, 09:52 | 0.59 | 0.59 mg/l |
| 4 Dec 2023, 13:44 | 0.55 | 0.55 mg/l |
| 20 Nov 2023, 13:24 | 0.18 | 0.18 mg/l |
| 18 Oct 2023, 13:18 | 0.42 | 0.42 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
869 µS/cm
Sampled 17 Mar 2025, 19 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:16 | 869 | 869 µS/cm |
| 18 Feb 2025, 10:27 | 846 | 846 µS/cm |
| 21 Jan 2025, 13:29 | 964 | 964 µS/cm |
| 6 Dec 2024, 13:22 | 429 | 429 µS/cm |
| 20 Nov 2024, 13:15 | 609 | 609 µS/cm |
| 21 Oct 2024, 14:40 | 599 | 599 µS/cm |
| 23 Sep 2024, 10:07 | 563 | 563 µS/cm |
| 22 Aug 2024, 11:14 | 851 | 851 µS/cm |
| 22 Jul 2024, 10:35 | 678 | 678 µS/cm |
| 17 Jun 2024, 11:38 | 763 | 763 µS/cm |
| 13 May 2024, 11:57 | 806 | 806 µS/cm |
| 16 Apr 2024, 12:21 | 643 | 643 µS/cm |
| 21 Mar 2024, 09:24 | 571 | 571 µS/cm |
| 21 Feb 2024, 10:49 | 534 | 534 µS/cm |
| 15 Jan 2024, 09:52 | 854 | 854 µS/cm |
| 4 Dec 2023, 13:44 | 1012 | 1012 µS/cm |
| 20 Nov 2023, 13:24 | 503 | 503 µS/cm |
| 18 Oct 2023, 13:18 | 685 | 685 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 | 18 | Oct 2023 – Mar 2025 | 93.5% 17 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 18 | Oct 2023 – Mar 2025 | 10.9 mg/l 17 Mar 2025 |
| Temperature of Water 0076 | River water | 18 | Oct 2023 – Mar 2025 | 8.4 °C 17 Mar 2025 |
| pH 0061 | River water | 18 | Oct 2023 – Mar 2025 | 7.69 17 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 18 | Oct 2023 – Mar 2025 | 0.15 mg/l 17 Mar 2025 |
| Nitrate as N 0117 | River water | 18 | Oct 2023 – Mar 2025 | 11.9 mg/l 17 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 17 | Oct 2023 – Mar 2025 | 1.4 mg/l 17 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 18 | Oct 2023 – Mar 2025 | 869 µS/cm 17 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 18 | Oct 2023 – Mar 2025 | 170 mg/l 17 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 18 | Oct 2023 – Mar 2025 | 0.0012 mg/l 17 Mar 2025 |
| BOD : 5 Day ATU 0085 | River water | 14 | Feb 2024 – Mar 2025 | below 2 mg/l 17 Mar 2025 |
| Nitrite as N 0118 | River water | 18 | Oct 2023 – Mar 2025 | 0.12 mg/l 17 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 18 | Oct 2023 – Mar 2025 | 12 mg/l 17 Mar 2025 |
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.