River Alt at Bull Bridge Aintree
EA name: RIVER ALT AT BULL BRIDGE AINTREE
Environment Agency sampling point NW-88002855 · 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
- 14 Aug 2026, 11:0348 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 24 since 24 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 338350, 398855As published, to the nearest 1 m. Open in a map
- River, by its own name
- Alt
- River, by the map
- River AltPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- Kirkby On the River Alt · 1.0 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Environmental monitoring statutory (EU directives) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.2%
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 101.2 | 101.2% |
| 16 Jul 2026, 09:46 | 92 | 92% |
| 23 Jun 2026, 11:30 | 108.7 | 108.7% |
| 27 May 2026, 09:57 | 94.1 | 94.1% |
| 29 Apr 2026, 08:40 | 86 | 86% |
| 4 Apr 2025, 11:00 | 108.6 | 108.6% |
| 3 Mar 2025, 14:41 | 103.2 | 103.2% |
| 3 Feb 2025, 10:19 | 91.3 | 91.3% |
| 20 Jan 2025, 13:27 | 96.2 | 96.2% |
| 4 Dec 2024, 09:31 | 88.5 | 88.5% |
| 20 Nov 2024, 09:57 | 88.2 | 88.2% |
| 16 Oct 2024, 11:40 | 85.6 | 85.6% |
| 16 Sep 2024, 09:03 | 80.4 | 80.4% |
| 22 Aug 2024, 11:15 | 69.6 | 69.6% |
| 24 Jul 2024, 11:03 | 89.2 | 89.2% |
| 21 Jun 2024, 10:34 | 102.9 | 102.9% |
| 13 May 2024, 10:44 | 89.7 | 89.7% |
| 15 Apr 2024, 11:03 | 90.3 | 90.3% |
| 21 Mar 2024, 12:37 | 93.1 | 93.1% |
| 19 Feb 2024, 13:31 | 94.7 | 94.7% |
| 23 Jan 2024, 11:25 | 89 | 89% |
| 14 Dec 2023, 11:35 | 91.1 | 91.1% |
| 22 Nov 2023, 11:23 | 88.2 | 88.2% |
| 24 Oct 2023, 10:44 | 84.3 | 84.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.2 mg/l
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 9.2 | 9.2 mg/l |
| 16 Jul 2026, 09:46 | 8.5 | 8.5 mg/l |
| 23 Jun 2026, 11:30 | 9.72 | 9.72 mg/l |
| 27 May 2026, 09:57 | 8.94 | 8.94 mg/l |
| 29 Apr 2026, 08:40 | 9.29 | 9.29 mg/l |
| 4 Apr 2025, 11:00 | 11.7 | 11.7 mg/l |
| 3 Mar 2025, 14:41 | 11.4 | 11.4 mg/l |
| 3 Feb 2025, 10:19 | 11 | 11 mg/l |
| 20 Jan 2025, 13:27 | 11.4 | 11.4 mg/l |
| 4 Dec 2024, 09:31 | 10.4 | 10.4 mg/l |
| 20 Nov 2024, 09:57 | 10.4 | 10.4 mg/l |
| 16 Oct 2024, 11:40 | 8.76 | 8.76 mg/l |
| 16 Sep 2024, 09:03 | 8.3 | 8.3 mg/l |
| 22 Aug 2024, 11:15 | 6.79 | 6.79 mg/l |
| 24 Jul 2024, 11:03 | 8.56 | 8.56 mg/l |
| 21 Jun 2024, 10:34 | 10 | 10 mg/l |
| 13 May 2024, 10:44 | 8.83 | 8.83 mg/l |
| 15 Apr 2024, 11:03 | 10.1 | 10.1 mg/l |
| 21 Mar 2024, 12:37 | 10.4 | 10.4 mg/l |
| 19 Feb 2024, 13:31 | 10.7 | 10.7 mg/l |
| 23 Jan 2024, 11:25 | 10.7 | 10.7 mg/l |
| 14 Dec 2023, 11:35 | 10.6 | 10.6 mg/l |
| 22 Nov 2023, 11:23 | 9.68 | 9.68 mg/l |
| 24 Oct 2023, 10:44 | 8.96 | 8.96 mg/l |
Water temperature
code 0076 · °C
19.9 °C
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 19.9 | 19.9 °C |
| 16 Jul 2026, 09:46 | 19.1 | 19.1 °C |
| 23 Jun 2026, 11:30 | 20.7 | 20.7 °C |
| 27 May 2026, 09:57 | 17.7 | 17.7 °C |
| 29 Apr 2026, 08:40 | 11.8 | 11.8 °C |
| 4 Apr 2025, 11:00 | 12 | 12 °C |
| 3 Mar 2025, 14:41 | 10.7 | 10.7 °C |
| 3 Feb 2025, 10:19 | 7.2 | 7.2 °C |
| 20 Jan 2025, 13:27 | 7.8 | 7.8 °C |
| 4 Dec 2024, 09:31 | 8.2 | 8.2 °C |
| 20 Nov 2024, 09:57 | 8.2 | 8.2 °C |
| 16 Oct 2024, 11:40 | 14.2 | 14.2 °C |
| 16 Sep 2024, 09:03 | 13.8 | 13.8 °C |
| 22 Aug 2024, 11:15 | 16.4 | 16.4 °C |
| 24 Jul 2024, 11:03 | 17.2 | 17.2 °C |
| 21 Jun 2024, 10:34 | 16.5 | 16.5 °C |
| 13 May 2024, 10:44 | 16 | 16 °C |
| 15 Apr 2024, 11:03 | 10.1 | 10.1 °C |
| 21 Mar 2024, 12:37 | 10.4 | 10.4 °C |
| 19 Feb 2024, 13:31 | 9.9 | 9.9 °C |
| 23 Jan 2024, 11:25 | 7.4 | 7.4 °C |
| 14 Dec 2023, 11:35 | 8.6 | 8.6 °C |
| 22 Nov 2023, 11:23 | 11.1 | 11.1 °C |
| 24 Oct 2023, 10:44 | 12.5 | 12.5 °C |
pH
code 0061
7.26
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 7.26 | 7.26 |
| 16 Jul 2026, 09:46 | 7.21 | 7.21 |
| 23 Jun 2026, 11:30 | 7.35 | 7.35 |
| 27 May 2026, 09:57 | 7.31 | 7.31 |
| 29 Apr 2026, 08:40 | 7.11 | 7.11 |
| 4 Apr 2025, 11:00 | 7.64 | 7.64 |
| 3 Mar 2025, 14:41 | 7.66 | 7.66 |
| 3 Feb 2025, 10:19 | 7.51 | 7.51 |
| 20 Jan 2025, 13:27 | 7.57 | 7.57 |
| 4 Dec 2024, 09:31 | 7.56 | 7.56 |
| 20 Nov 2024, 09:57 | 7.44 | 7.44 |
| 16 Oct 2024, 11:40 | 7.34 | 7.34 |
| 16 Sep 2024, 09:03 | 7.54 | 7.54 |
| 22 Aug 2024, 11:15 | 7.39 | 7.39 |
| 24 Jul 2024, 11:03 | 7.68 | 7.68 |
| 21 Jun 2024, 10:34 | 7.9 | 7.9 |
| 13 May 2024, 10:44 | 7.5 | 7.5 |
| 15 Apr 2024, 11:03 | 7.54 | 7.54 |
| 21 Mar 2024, 12:37 | 7.54 | 7.54 |
| 19 Feb 2024, 13:31 | 7.54 | 7.54 |
| 23 Jan 2024, 11:25 | 7.54 | 7.54 |
| 14 Dec 2023, 11:35 | 7.44 | 7.44 |
| 22 Nov 2023, 11:23 | 7.43 | 7.43 |
| 24 Oct 2023, 10:44 | 7.35 | 7.35 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.1 mg/l
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 0.1 | 0.1 mg/l |
| 16 Jul 2026, 09:46 | 0.11 | 0.11 mg/l |
| 23 Jun 2026, 11:30 | 0.1 | 0.1 mg/l |
| 27 May 2026, 09:57 | 0.3 | 0.3 mg/l |
| 29 Apr 2026, 08:40 | 0.031 | 0.031 mg/l |
| 4 Apr 2025, 11:00 | 0.11 | 0.11 mg/l |
| 3 Mar 2025, 14:41 | 0.15 | 0.15 mg/l |
| 3 Feb 2025, 10:19 | 0.24 | 0.24 mg/l |
| 20 Jan 2025, 13:27 | 0.24 | 0.24 mg/l |
| 4 Dec 2024, 09:31 | 0.12 | 0.12 mg/l |
| 20 Nov 2024, 09:57 | 0.11 | 0.11 mg/l |
| 16 Oct 2024, 11:40 | 0.59 | 0.59 mg/l |
| 16 Sep 2024, 09:03 | 0.1 | 0.1 mg/l |
| 22 Aug 2024, 11:15 | 0.26 | 0.26 mg/l |
| 24 Jul 2024, 11:03 | 0.11 | 0.11 mg/l |
| 21 Jun 2024, 10:34 | 0.071 | 0.071 mg/l |
| 13 May 2024, 10:44 | 0.78 | 0.78 mg/l |
| 15 Apr 2024, 11:03 | 0.19 | 0.19 mg/l |
| 21 Mar 2024, 12:37 | 0.31 | 0.31 mg/l |
| 19 Feb 2024, 13:31 | 0.11 | 0.11 mg/l |
| 23 Jan 2024, 11:25 | 0.27 | 0.27 mg/l |
| 14 Dec 2023, 11:35 | 0.18 | 0.18 mg/l |
| 22 Nov 2023, 11:23 | 0.16 | 0.16 mg/l |
| 24 Oct 2023, 10:44 | 0.044 | 0.044 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18.9 mg/l
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 18.9 | 18.9 mg/l |
| 16 Jul 2026, 09:46 | 17.8 | 17.8 mg/l |
| 23 Jun 2026, 11:30 | 15.8 | 15.8 mg/l |
| 27 May 2026, 09:57 | 14.7 | 14.7 mg/l |
| 29 Apr 2026, 08:40 | 18.9 | 18.9 mg/l |
| 4 Apr 2025, 11:00 | 16.9 | 16.9 mg/l |
| 3 Mar 2025, 14:41 | 14 | 14 mg/l |
| 3 Feb 2025, 10:19 | 8.25 | 8.25 mg/l |
| 20 Jan 2025, 13:27 | 13 | 13 mg/l |
| 4 Dec 2024, 09:31 | 9.13 | 9.13 mg/l |
| 20 Nov 2024, 09:57 | 8.45 | 8.45 mg/l |
| 16 Oct 2024, 11:40 | 7.55 | 7.55 mg/l |
| 16 Sep 2024, 09:03 | 5.45 | 5.45 mg/l |
| 22 Aug 2024, 11:15 | 15.7 | 15.7 mg/l |
| 24 Jul 2024, 11:03 | 9.68 | 9.68 mg/l |
| 21 Jun 2024, 10:34 | 14.9 | 14.9 mg/l |
| 13 May 2024, 10:44 | 6.66 | 6.66 mg/l |
| 15 Apr 2024, 11:03 | 9.33 | 9.33 mg/l |
| 21 Mar 2024, 12:37 | 8.99 | 8.99 mg/l |
| 19 Feb 2024, 13:31 | 5.48 | 5.48 mg/l |
| 23 Jan 2024, 11:25 | 8.25 | 8.25 mg/l |
| 14 Dec 2023, 11:35 | 6.14 | 6.14 mg/l |
| 22 Nov 2023, 11:23 | 6.43 | 6.43 mg/l |
| 24 Oct 2023, 10:44 | 7.27 | 7.27 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.39 mg/l
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 0.39 | 0.39 mg/l |
| 16 Jul 2026, 09:46 | 0.32 | 0.32 mg/l |
| 23 Jun 2026, 11:30 | 0.35 | 0.35 mg/l |
| 27 May 2026, 09:57 | 0.45 | 0.45 mg/l |
| 29 Apr 2026, 08:40 | 0.47 | 0.47 mg/l |
| 4 Apr 2025, 11:00 | 0.53 | 0.53 mg/l |
| 3 Mar 2025, 14:41 | 0.47 | 0.47 mg/l |
| 3 Feb 2025, 10:19 | 0.29 | 0.29 mg/l |
| 20 Jan 2025, 13:27 | 0.38 | 0.38 mg/l |
| 4 Dec 2024, 09:31 | 0.22 | 0.22 mg/l |
| 20 Nov 2024, 09:57 | 0.21 | 0.21 mg/l |
| 16 Oct 2024, 11:40 | 0.39 | 0.39 mg/l |
| 16 Sep 2024, 09:03 | 0.28 | 0.28 mg/l |
| 22 Aug 2024, 11:15 | 0.32 | 0.32 mg/l |
| 24 Jul 2024, 11:03 | 0.33 | 0.33 mg/l |
| 21 Jun 2024, 10:34 | 0.25 | 0.25 mg/l |
| 13 May 2024, 10:44 | 0.28 | 0.28 mg/l |
| 15 Apr 2024, 11:03 | 0.23 | 0.23 mg/l |
| 21 Mar 2024, 12:37 | 0.19 | 0.19 mg/l |
| 19 Feb 2024, 13:31 | 0.088 | 0.088 mg/l |
| 23 Jan 2024, 11:25 | 0.18 | 0.18 mg/l |
| 14 Dec 2023, 11:35 | 0.062 | 0.062 mg/l |
| 22 Nov 2023, 11:23 | 0.084 | 0.084 mg/l |
| 24 Oct 2023, 10:44 | 0.29 | 0.29 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
755 µS/cm
Sampled 14 Aug 2026, 48 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Aug 2026, 11:03 | 755 | 755 µS/cm |
| 16 Jul 2026, 09:46 | 768 | 768 µS/cm |
| 23 Jun 2026, 11:30 | 724 | 724 µS/cm |
| 27 May 2026, 09:57 | 736 | 736 µS/cm |
| 29 Apr 2026, 08:40 | 779 | 779 µS/cm |
| 4 Apr 2025, 11:00 | 854 | 854 µS/cm |
| 3 Mar 2025, 14:41 | 706 | 706 µS/cm |
| 3 Feb 2025, 10:19 | 631 | 631 µS/cm |
| 20 Jan 2025, 13:27 | 672 | 672 µS/cm |
| 4 Dec 2024, 09:31 | 568 | 568 µS/cm |
| 20 Nov 2024, 09:57 | 824 | 824 µS/cm |
| 16 Oct 2024, 11:40 | 474 | 474 µS/cm |
| 16 Sep 2024, 09:03 | 455 | 455 µS/cm |
| 22 Aug 2024, 11:15 | 800 | 800 µS/cm |
| 24 Jul 2024, 11:03 | 746 | 746 µS/cm |
| 21 Jun 2024, 10:34 | 770 | 770 µS/cm |
| 13 May 2024, 10:44 | 603 | 603 µS/cm |
| 15 Apr 2024, 11:03 | 596 | 596 µS/cm |
| 21 Mar 2024, 12:37 | 631 | 631 µS/cm |
| 19 Feb 2024, 13:31 | 502 | 502 µS/cm |
| 23 Jan 2024, 11:25 | 705 | 705 µS/cm |
| 14 Dec 2023, 11:35 | 640 | 640 µS/cm |
| 22 Nov 2023, 11:23 | 573 | 573 µS/cm |
| 24 Oct 2023, 10:44 | 553 | 553 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 | 24 | Oct 2023 – Aug 2026 | 101.2% 14 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Oct 2023 – Aug 2026 | 9.2 mg/l 14 Aug 2026 |
| Temperature of Water 0076 | River water | 24 | Oct 2023 – Aug 2026 | 19.9 °C 14 Aug 2026 |
| pH 0061 | River water | 24 | Oct 2023 – Aug 2026 | 7.26 14 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Oct 2023 – Aug 2026 | 0.1 mg/l 14 Aug 2026 |
| Nitrate as N 0117 | River water | 24 | Oct 2023 – Aug 2026 | 18.9 mg/l 14 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Oct 2023 – Aug 2026 | 0.39 mg/l 14 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Oct 2023 – Aug 2026 | 755 µS/cm 14 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Oct 2023 – Aug 2026 | 47 mg/l 14 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Oct 2023 – Aug 2026 | 0.0007 mg/l 14 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – Apr 2025 | 3.3 mg/l 4 Apr 2025 |
| Nitrite as N 0118 | River water | 24 | Oct 2023 – Aug 2026 | 0.11 mg/l 14 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Oct 2023 – Aug 2026 | 19 mg/l 14 Aug 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.