Aire at Allerton Bywater
EA name: AIRE AT ALLERTON BYWATER
Environment Agency sampling point NE-49400406 · 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
- 22 Jun 2026, 14:313 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 38 since 4 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 441783, 427356As published, to the nearest 1 m. Open in a map
- River, by its own name
- Aire
- River, by the map
- River AirePlaced on the river its name gives, 19 m from the line.
- Next gauge downstream
- Allerton Ings On the Aire Washlands · 0.1 km along the riverBeside Mickletown Ings: too close to say above or below.
- Nearest gauge upstream
- Oulton Lemonroyd On the River Aire · 4.5 km along the riverFarrer Lane On the Oulton Beck · 6.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Environmental monitoring statutory (EU directives) (16 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.5%
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 101.5 | 101.5% |
| 9 Jun 2026, 15:15 | 90.4 | 90.4% |
| 21 May 2026, 14:51 | 105.4 | 105.4% |
| 11 May 2026, 15:53 | 95.7 | 95.7% |
| 16 Apr 2026, 14:43 | 92.7 | 92.7% |
| 1 Apr 2026, 12:30 | 95.7 | 95.7% |
| 16 Mar 2026, 14:52 | 99.2 | 99.2% |
| 4 Mar 2026, 11:37 | 94.4 | 94.4% |
| 19 Feb 2026, 12:51 | 97.6 | 97.6% |
| 3 Feb 2026, 12:36 | 96.5 | 96.5% |
| 26 Jan 2026, 11:52 | 98.2 | 98.2% |
| 16 Jan 2026, 12:17 | 96.8 | 96.8% |
| 4 Mar 2025, 12:53 | 95.9 | 95.9% |
| 11 Feb 2025, 13:49 | 96.3 | 96.3% |
| 23 Jan 2025, 11:56 | 96.4 | 96.4% |
| 10 Dec 2024, 12:17 | 110.6 | 110.6% |
| 26 Nov 2024, 10:40 | 109.9 | 109.9% |
| 15 Oct 2024, 14:04 | 86.9 | 86.9% |
| 19 Sep 2024, 12:14 | 82.8 | 82.8% |
| 22 Aug 2024, 11:23 | 82.1 | 82.1% |
| 15 Jul 2024, 12:37 | 79.6 | 79.6% |
| 10 Jun 2024, 11:08 | 84.3 | 84.3% |
| 5 Mar 2024, 12:01 | 95.5 | 95.5% |
| 8 Feb 2024, 12:32 | 97.7 | 97.7% |
| 8 Jan 2024, 10:43 | 95.8 | 95.8% |
| 11 Dec 2023, 10:52 | 98.9 | 98.9% |
| 24 Nov 2023, 12:06 | 96 | 96% |
| 4 Oct 2023, 13:59 | 100.4 | 100.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.01 mg/l
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 9.01 | 9.01 mg/l |
| 9 Jun 2026, 15:15 | 8.84 | 8.84 mg/l |
| 21 May 2026, 14:51 | 10.5 | 10.5 mg/l |
| 11 May 2026, 15:53 | 9.84 | 9.84 mg/l |
| 16 Apr 2026, 14:43 | 9.97 | 9.97 mg/l |
| 1 Apr 2026, 12:30 | 10.7 | 10.7 mg/l |
| 16 Mar 2026, 14:52 | 11.6 | 11.6 mg/l |
| 4 Mar 2026, 11:37 | 10.7 | 10.7 mg/l |
| 19 Feb 2026, 12:51 | 12.1 | 12.1 mg/l |
| 3 Feb 2026, 12:36 | 11.7 | 11.7 mg/l |
| 26 Jan 2026, 11:52 | 11.9 | 11.9 mg/l |
| 16 Jan 2026, 12:17 | 12 | 12 mg/l |
| 4 Mar 2025, 12:53 | 11.2 | 11.2 mg/l |
| 11 Feb 2025, 13:49 | 11.8 | 11.8 mg/l |
| 23 Jan 2025, 11:56 | 11.7 | 11.7 mg/l |
| 10 Dec 2024, 12:17 | 13.3 | 13.3 mg/l |
| 26 Nov 2024, 10:40 | 13.2 | 13.2 mg/l |
| 15 Oct 2024, 14:04 | 9.47 | 9.47 mg/l |
| 19 Sep 2024, 12:14 | 8.26 | 8.26 mg/l |
| 22 Aug 2024, 11:23 | 7.9 | 7.9 mg/l |
| 15 Jul 2024, 12:37 | 7.67 | 7.67 mg/l |
| 10 Jun 2024, 11:08 | 8.65 | 8.65 mg/l |
| 5 Mar 2024, 12:01 | 11.4 | 11.4 mg/l |
| 8 Feb 2024, 12:32 | 12.1 | 12.1 mg/l |
| 8 Jan 2024, 10:43 | 11.9 | 11.9 mg/l |
| 11 Dec 2023, 10:52 | 11.8 | 11.8 mg/l |
| 24 Nov 2023, 12:06 | 10.8 | 10.8 mg/l |
| 4 Oct 2023, 13:59 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
21.1 °C
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 21.1 | 21.1 °C |
| 9 Jun 2026, 15:15 | 16.3 | 16.3 °C |
| 21 May 2026, 14:51 | 15.3 | 15.3 °C |
| 11 May 2026, 15:53 | 14 | 14 °C |
| 16 Apr 2026, 14:43 | 12 | 12 °C |
| 1 Apr 2026, 12:30 | 10.4 | 10.4 °C |
| 16 Mar 2026, 14:52 | 8.3 | 8.3 °C |
| 4 Mar 2026, 11:37 | 9.7 | 9.7 °C |
| 19 Feb 2026, 12:51 | 6.2 | 6.2 °C |
| 3 Feb 2026, 12:36 | 7.1 | 7.1 °C |
| 26 Jan 2026, 11:52 | 7.1 | 7.1 °C |
| 16 Jan 2026, 12:17 | 6.2 | 6.2 °C |
| 4 Mar 2025, 12:53 | 8.6 | 8.6 °C |
| 11 Feb 2025, 13:49 | 6.7 | 6.7 °C |
| 23 Jan 2025, 11:56 | 7.1 | 7.1 °C |
| 10 Dec 2024, 12:17 | 7.4 | 7.4 °C |
| 26 Nov 2024, 10:40 | 7.5 | 7.5 °C |
| 15 Oct 2024, 14:04 | 11.4 | 11.4 °C |
| 19 Sep 2024, 12:14 | 15.4 | 15.4 °C |
| 22 Aug 2024, 11:23 | 17.1 | 17.1 °C |
| 15 Jul 2024, 12:37 | 17 | 17 °C |
| 10 Jun 2024, 11:08 | 14.1 | 14.1 °C |
| 5 Mar 2024, 12:01 | 7.7 | 7.7 °C |
| 8 Feb 2024, 12:32 | 6.1 | 6.1 °C |
| 8 Jan 2024, 10:43 | 6.1 | 6.1 °C |
| 11 Dec 2023, 10:52 | 7.7 | 7.7 °C |
| 24 Nov 2023, 12:06 | 9.9 | 9.9 °C |
| 4 Oct 2023, 13:59 | 14.3 | 14.3 °C |
pH
code 0061
7.91
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 7.91 | 7.91 |
| 9 Jun 2026, 15:15 | 7.57 | 7.57 |
| 21 May 2026, 14:51 | 7.76 | 7.76 |
| 11 May 2026, 15:53 | 7.61 | 7.61 |
| 16 Apr 2026, 14:43 | 7.61 | 7.61 |
| 1 Apr 2026, 12:30 | 7.64 | 7.64 |
| 16 Mar 2026, 14:52 | 7.86 | 7.86 |
| 4 Mar 2026, 11:37 | 7.66 | 7.66 |
| 19 Feb 2026, 12:51 | 7.68 | 7.68 |
| 3 Feb 2026, 12:36 | 7.72 | 7.72 |
| 26 Jan 2026, 11:52 | 7.73 | 7.73 |
| 16 Jan 2026, 12:17 | 7.74 | 7.74 |
| 4 Mar 2025, 12:53 | 7.6 | 7.6 |
| 11 Feb 2025, 13:49 | 7.63 | 7.63 |
| 23 Jan 2025, 11:56 | 7.78 | 7.78 |
| 10 Dec 2024, 12:17 | 7.77 | 7.77 |
| 26 Nov 2024, 10:40 | 7.71 | 7.71 |
| 15 Oct 2024, 14:04 | 7.56 | 7.56 |
| 19 Sep 2024, 12:14 | 7.53 | 7.53 |
| 22 Aug 2024, 11:23 | 7.54 | 7.54 |
| 15 Jul 2024, 12:37 | 7.43 | 7.43 |
| 10 Jun 2024, 11:08 | 7.49 | 7.49 |
| 5 Mar 2024, 12:01 | 7.7 | 7.7 |
| 8 Feb 2024, 12:32 | 7.93 | 7.93 |
| 8 Jan 2024, 10:43 | 7.72 | 7.72 |
| 11 Dec 2023, 10:52 | 7.65 | 7.65 |
| 24 Nov 2023, 12:06 | 7.79 | 7.79 |
| 4 Oct 2023, 13:59 | 7.65 | 7.65 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.073 mg/l
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 0.073 | 0.073 mg/l |
| 9 Jun 2026, 15:15 | 0.16 | 0.16 mg/l |
| 21 May 2026, 14:51 | 0.11 | 0.11 mg/l |
| 11 May 2026, 15:53 | 0.12 | 0.12 mg/l |
| 16 Apr 2026, 14:43 | 0.26 | 0.26 mg/l |
| 1 Apr 2026, 12:30 | 0.11 | 0.11 mg/l |
| 16 Mar 2026, 14:52 | 0.12 | 0.12 mg/l |
| 4 Mar 2026, 11:37 | 0.22 | 0.22 mg/l |
| 19 Feb 2026, 12:51 | 0.26 | 0.26 mg/l |
| 3 Feb 2026, 12:36 | 0.21 | 0.21 mg/l |
| 26 Jan 2026, 11:52 | 0.19 | 0.19 mg/l |
| 16 Jan 2026, 12:17 | 0.26 | 0.26 mg/l |
| 4 Mar 2025, 12:53 | 0.21 | 0.21 mg/l |
| 11 Feb 2025, 13:49 | 0.34 | 0.34 mg/l |
| 23 Jan 2025, 11:56 | 0.38 | 0.38 mg/l |
| 10 Dec 2024, 12:17 | 0.18 | 0.18 mg/l |
| 26 Nov 2024, 10:40 | 0.17 | 0.17 mg/l |
| 15 Oct 2024, 14:04 | 0.21 | 0.21 mg/l |
| 19 Sep 2024, 12:14 | 0.13 | 0.13 mg/l |
| 22 Aug 2024, 11:23 | 0.14 | 0.14 mg/l |
| 15 Jul 2024, 12:37 | 0.22 | 0.22 mg/l |
| 10 Jun 2024, 11:08 | 0.18 | 0.18 mg/l |
| 5 Mar 2024, 12:01 | 0.16 | 0.16 mg/l |
| 8 Feb 2024, 12:32 | 0.16 | 0.16 mg/l |
| 8 Jan 2024, 10:43 | 0.21 | 0.21 mg/l |
| 11 Dec 2023, 10:52 | 0.18 | 0.18 mg/l |
| 24 Nov 2023, 12:06 | 0.11 | 0.11 mg/l |
| 4 Oct 2023, 13:59 | 0.086 | 0.086 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.94 mg/l
Sampled 22 Jun 2026, 3 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 7.94 | 7.94 mg/l |
| 9 Jun 2026, 15:15 | 5.73 | 5.73 mg/l |
| 21 May 2026, 14:51 | 7.1 | 7.1 mg/l |
| 11 May 2026, 15:53 | 8.53 | 8.53 mg/l |
| 16 Apr 2026, 14:43 | 6.71 | 6.71 mg/l |
| 1 Apr 2026, 12:30 | 4.17 | 4.17 mg/l |
| 16 Mar 2026, 14:52 | 3.86 | 3.86 mg/l |
| 4 Mar 2026, 11:37 | 6.02 | 6.02 mg/l |
| 19 Feb 2026, 12:51 | 4.96 | 4.96 mg/l |
| 3 Feb 2026, 12:36 | 4.55 | 4.55 mg/l |
| 26 Jan 2026, 11:52 | 4.16 | 4.16 mg/l |
| 16 Jan 2026, 12:17 | 5.73 | 5.73 mg/l |
| 4 Mar 2025, 12:53 | 6.63 | 6.63 mg/l |
| 11 Feb 2025, 13:49 | 7.21 | 7.21 mg/l |
| 23 Jan 2025, 11:56 | 5.64 | 5.64 mg/l |
| 10 Dec 2024, 12:17 | 4.17 | 4.17 mg/l |
| 26 Nov 2024, 10:40 | 2.98 | 2.98 mg/l |
| 15 Oct 2024, 14:04 | 6.53 | 6.53 mg/l |
| 19 Sep 2024, 12:14 | 8.05 | 8.05 mg/l |
| 22 Aug 2024, 11:23 | 8.64 | 8.64 mg/l |
| 15 Jul 2024, 12:37 | 8.21 | 8.21 mg/l |
| 10 Jun 2024, 11:08 | 8.61 | 8.61 mg/l |
| 5 Mar 2024, 12:01 | 3.95 | 3.95 mg/l |
| 8 Jan 2024, 10:43 | 4.45 | 4.45 mg/l |
| 11 Dec 2023, 10:52 | 2.17 | 2.17 mg/l |
| 24 Nov 2023, 12:06 | 3.96 | 3.96 mg/l |
| 4 Oct 2023, 13:59 | 3.76 | 3.76 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.12 mg/l
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 0.12 | 0.12 mg/l |
| 9 Jun 2026, 15:15 | 0.14 | 0.14 mg/l |
| 21 May 2026, 14:51 | 0.14 | 0.14 mg/l |
| 11 May 2026, 15:53 | 0.13 | 0.13 mg/l |
| 16 Apr 2026, 14:43 | 0.1 | 0.1 mg/l |
| 1 Apr 2026, 12:30 | 0.07 | 0.07 mg/l |
| 16 Mar 2026, 14:52 | 0.074 | 0.074 mg/l |
| 4 Mar 2026, 11:37 | 0.064 | 0.064 mg/l |
| 19 Feb 2026, 12:51 | 0.05 | 0.05 mg/l |
| 3 Feb 2026, 12:36 | 0.064 | 0.064 mg/l |
| 26 Jan 2026, 11:52 | 0.069 | 0.069 mg/l |
| 16 Jan 2026, 12:17 | 0.078 | 0.078 mg/l |
| 4 Mar 2025, 12:53 | 0.15 | 0.15 mg/l |
| 11 Feb 2025, 13:49 | 0.13 | 0.13 mg/l |
| 23 Jan 2025, 11:56 | 0.096 | 0.096 mg/l |
| 10 Dec 2024, 12:17 | 0.075 | 0.075 mg/l |
| 26 Nov 2024, 10:40 | 0.14 | 0.14 mg/l |
| 15 Oct 2024, 14:04 | 0.19 | 0.19 mg/l |
| 19 Sep 2024, 12:14 | 0.63 | 0.63 mg/l |
| 22 Aug 2024, 11:23 | 0.67 | 0.67 mg/l |
| 15 Jul 2024, 12:37 | 0.59 | 0.59 mg/l |
| 10 Jun 2024, 11:08 | 0.68 | 0.68 mg/l |
| 5 Mar 2024, 12:01 | 0.23 | 0.23 mg/l |
| 8 Feb 2024, 12:32 | 0.25 | 0.25 mg/l |
| 8 Jan 2024, 10:43 | 0.14 | 0.14 mg/l |
| 11 Dec 2023, 10:52 | 0.085 | 0.085 mg/l |
| 24 Nov 2023, 12:06 | 0.14 | 0.14 mg/l |
| 4 Oct 2023, 13:59 | 0.26 | 0.26 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
782 µS/cm
Sampled 22 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 14:31 | 782 | 782 µS/cm |
| 9 Jun 2026, 15:15 | 642 | 642 µS/cm |
| 21 May 2026, 14:51 | 580 | 580 µS/cm |
| 11 May 2026, 15:53 | 723 | 723 µS/cm |
| 16 Apr 2026, 14:43 | 685 | 685 µS/cm |
| 1 Apr 2026, 12:30 | 472 | 472 µS/cm |
| 16 Mar 2026, 14:52 | 524 | 524 µS/cm |
| 4 Mar 2026, 11:37 | 651 | 651 µS/cm |
| 19 Feb 2026, 12:51 | 591 | 591 µS/cm |
| 3 Feb 2026, 12:36 | 558 | 558 µS/cm |
| 26 Jan 2026, 11:52 | 494 | 494 µS/cm |
| 16 Jan 2026, 12:17 | 634 | 634 µS/cm |
| 4 Mar 2025, 12:53 | 642 | 642 µS/cm |
| 11 Feb 2025, 13:49 | 728 | 728 µS/cm |
| 23 Jan 2025, 11:56 | 686 | 686 µS/cm |
| 10 Dec 2024, 12:17 | 468 | 468 µS/cm |
| 26 Nov 2024, 10:40 | 384 | 384 µS/cm |
| 15 Oct 2024, 14:04 | 554 | 554 µS/cm |
| 19 Sep 2024, 12:14 | 709 | 709 µS/cm |
| 22 Aug 2024, 11:23 | 865 | 865 µS/cm |
| 15 Jul 2024, 12:37 | 729 | 729 µS/cm |
| 10 Jun 2024, 11:08 | 716 | 716 µS/cm |
| 5 Mar 2024, 12:01 | 539 | 539 µS/cm |
| 8 Feb 2024, 12:32 | 537 | 537 µS/cm |
| 8 Jan 2024, 10:43 | 530 | 530 µS/cm |
| 11 Dec 2023, 10:52 | 296 | 296 µS/cm |
| 24 Nov 2023, 12:06 | 479 | 479 µS/cm |
| 4 Oct 2023, 13:59 | 426 | 426 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 | 28 | Oct 2023 – Jun 2026 | 101.5% 22 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Oct 2023 – Jun 2026 | 9.01 mg/l 22 Jun 2026 |
| Temperature of Water 0076 | River water | 28 | Oct 2023 – Jun 2026 | 21.1 °C 22 Jun 2026 |
| pH 0061 | River water | 28 | Oct 2023 – Jun 2026 | 7.91 22 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Oct 2023 – Jun 2026 | 0.073 mg/l 22 Jun 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – Jun 2026 | 7.94 mg/l 22 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Oct 2023 – Jun 2026 | 0.12 mg/l 22 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Oct 2023 – Jun 2026 | 782 µS/cm 22 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – Jun 2026 | 120 mg/l 22 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Oct 2023 – Jun 2026 | 0.00244 mg/l 22 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 24 | Jul 2024 – Jun 2026 | below 6 mg/l 9 Jun 2026 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – Jun 2026 | 0.057 mg/l 22 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Jun 2026 | 8 mg/l 22 Jun 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.