River Ouse Houghton Mill
EA name: R.OUSE HOUGHTON MILL
Environment Agency sampling point AN-26M23 · 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
- 15 Sep 2026, 10:4616 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 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 Planned investigation (national agency policy)
- Where
- National Grid 528150, 271970As published, to the nearest 10 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedNearest line is 43 m away and its name does not agree. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Planned investigation (local monitoring) (18 samples)
Environmental monitoring statutory (EU directives) (7 samples)
Planned investigation (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
54.4%
Sampled 15 Sep 2026, 16 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 54.4 | 54.4% |
| 11 Aug 2026, 13:42 | 100.3 | 100.3% |
| 8 Jul 2026, 09:42 | 97.5 | 97.5% |
| 1 Jun 2026, 12:23 | 83.1 | 83.1% |
| 14 May 2026, 15:09 | 103.1 | 103.1% |
| 29 Apr 2026, 12:15 | 97 | 97% |
| 5 Mar 2026, 15:14 | 95.6 | 95.6% |
| 5 Feb 2026, 10:04 | 94.4 | 94.4% |
| 12 Jan 2026, 12:18 | 99 | 99% |
| 4 Dec 2025, 09:32 | 90.9 | 90.9% |
| 5 Nov 2025, 10:16 | 78.5 | 78.5% |
| 10 Oct 2025, 11:05 | 69.5 | 69.5% |
| 7 Apr 2025, 14:54 | 116.1 | 116.1% |
| 11 Mar 2025, 13:55 | 98.3 | 98.3% |
| 10 Feb 2025, 13:23 | 98.8 | 98.8% |
| 16 Jan 2025, 11:48 | 97.9 | 97.9% |
| 9 Dec 2024, 14:53 | 89.9 | 89.9% |
| 11 Nov 2024, 11:13 | 82 | 82% |
| 3 Oct 2024, 10:00 | 59.7 | 59.7% |
| 11 Sep 2024, 10:39 | 80.1 | 80.1% |
| 12 Aug 2024, 09:22 | 82.7 | 82.7% |
| 9 Jul 2024, 13:07 | 87.8 | 87.8% |
| 7 Jun 2024, 10:27 | 94.3 | 94.3% |
| 6 Mar 2024, 10:27 | 97.9 | 97.9% |
| 7 Feb 2024, 11:56 | 95.6 | 95.6% |
| 9 Jan 2024, 09:48 | 84.9 | 84.9% |
| 4 Dec 2023, 14:18 | 95.5 | 95.5% |
| 7 Nov 2023, 12:38 | 93.3 | 93.3% |
| 4 Oct 2023, 12:45 | 75.8 | 75.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.04 mg/l
Sampled 15 Sep 2026, 16 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 5.04 | 5.04 mg/l |
| 11 Aug 2026, 13:42 | 8.7 | 8.7 mg/l |
| 8 Jul 2026, 09:42 | 8.24 | 8.24 mg/l |
| 1 Jun 2026, 12:23 | 7.39 | 7.39 mg/l |
| 14 May 2026, 15:09 | 10.4 | 10.4 mg/l |
| 29 Apr 2026, 12:15 | 9.69 | 9.69 mg/l |
| 5 Mar 2026, 15:14 | 10.7 | 10.7 mg/l |
| 5 Feb 2026, 10:04 | 11.6 | 11.6 mg/l |
| 12 Jan 2026, 12:18 | 12.7 | 12.7 mg/l |
| 4 Dec 2025, 09:32 | 11 | 11 mg/l |
| 5 Nov 2025, 10:16 | 8.48 | 8.48 mg/l |
| 10 Oct 2025, 11:05 | 7.18 | 7.18 mg/l |
| 7 Apr 2025, 14:54 | 12 | 12 mg/l |
| 11 Mar 2025, 13:55 | 11.4 | 11.4 mg/l |
| 10 Feb 2025, 13:23 | 12.5 | 12.5 mg/l |
| 16 Jan 2025, 11:48 | 12.5 | 12.5 mg/l |
| 9 Dec 2024, 14:53 | 10.7 | 10.7 mg/l |
| 11 Nov 2024, 11:13 | 9.13 | 9.13 mg/l |
| 3 Oct 2024, 10:00 | 6.4 | 6.4 mg/l |
| 11 Sep 2024, 10:39 | 7.94 | 7.94 mg/l |
| 12 Aug 2024, 09:22 | 7.38 | 7.38 mg/l |
| 9 Jul 2024, 13:07 | 8.34 | 8.34 mg/l |
| 7 Jun 2024, 10:27 | 9.11 | 9.11 mg/l |
| 6 Mar 2024, 10:27 | 11.7 | 11.7 mg/l |
| 7 Feb 2024, 11:56 | 11.1 | 11.1 mg/l |
| 9 Jan 2024, 09:48 | 11.3 | 11.3 mg/l |
| 4 Dec 2023, 14:18 | 12.1 | 12.1 mg/l |
| 7 Nov 2023, 12:38 | 10.7 | 10.7 mg/l |
| 4 Oct 2023, 12:45 | 7.43 | 7.43 mg/l |
Water temperature
code 0076 · °C
18.9 °C
Sampled 15 Sep 2026, 16 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 18.9 | 18.9 °C |
| 11 Aug 2026, 13:42 | 22.3 | 22.3 °C |
| 8 Jul 2026, 09:42 | 23.7 | 23.7 °C |
| 1 Jun 2026, 12:23 | 21 | 21 °C |
| 14 May 2026, 15:09 | 15 | 15 °C |
| 29 Apr 2026, 12:15 | 15.3 | 15.3 °C |
| 5 Mar 2026, 15:14 | 10.4 | 10.4 °C |
| 5 Feb 2026, 10:04 | 6.5 | 6.5 °C |
| 12 Jan 2026, 12:18 | 4.7 | 4.7 °C |
| 4 Dec 2025, 09:32 | 6.9 | 6.9 °C |
| 5 Nov 2025, 10:16 | 11.8 | 11.8 °C |
| 10 Oct 2025, 11:05 | 13.8 | 13.8 °C |
| 7 Apr 2025, 14:54 | 13.6 | 13.6 °C |
| 11 Mar 2025, 13:55 | 8.8 | 8.8 °C |
| 10 Feb 2025, 13:23 | 5.2 | 5.2 °C |
| 16 Jan 2025, 11:48 | 4.9 | 4.9 °C |
| 9 Dec 2024, 14:53 | 7.6 | 7.6 °C |
| 11 Nov 2024, 11:13 | 10.5 | 10.5 °C |
| 3 Oct 2024, 10:00 | 12.1 | 12.1 °C |
| 11 Sep 2024, 10:39 | 15.7 | 15.7 °C |
| 12 Aug 2024, 09:22 | 20.8 | 20.8 °C |
| 9 Jul 2024, 13:07 | 17.7 | 17.7 °C |
| 7 Jun 2024, 10:27 | 16.9 | 16.9 °C |
| 6 Mar 2024, 10:27 | 7.4 | 7.4 °C |
| 7 Feb 2024, 11:56 | 8.6 | 8.6 °C |
| 9 Jan 2024, 09:48 | 3.5 | 3.5 °C |
| 4 Dec 2023, 14:18 | 5.3 | 5.3 °C |
| 7 Nov 2023, 12:38 | 9.4 | 9.4 °C |
| 4 Oct 2023, 12:45 | 16.2 | 16.2 °C |
pH
code 0061
7.46
Sampled 15 Sep 2026, 16 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 7.46 | 7.46 |
| 11 Aug 2026, 13:42 | 7.83 | 7.83 |
| 8 Jul 2026, 09:42 | 7.9 | 7.9 |
| 1 Jun 2026, 12:23 | 7.73 | 7.73 |
| 14 May 2026, 15:09 | 7.94 | 7.94 |
| 29 Apr 2026, 12:15 | 7.9 | 7.9 |
| 5 Mar 2026, 15:14 | 8.03 | 8.03 |
| 5 Feb 2026, 10:04 | 8.1 | 8.1 |
| 12 Jan 2026, 12:18 | 7.98 | 7.98 |
| 4 Dec 2025, 09:32 | 7.98 | 7.98 |
| 5 Nov 2025, 10:16 | 7.77 | 7.77 |
| 10 Oct 2025, 11:05 | 7.64 | 7.64 |
| 7 Apr 2025, 14:54 | 8.17 | 8.17 |
| 11 Mar 2025, 13:55 | 8.25 | 8.25 |
| 10 Feb 2025, 13:23 | 8.14 | 8.14 |
| 16 Jan 2025, 11:48 | 8.12 | 8.12 |
| 9 Dec 2024, 14:53 | 7.99 | 7.99 |
| 11 Nov 2024, 11:13 | 7.9 | 7.9 |
| 3 Oct 2024, 10:00 | 7.57 | 7.57 |
| 11 Sep 2024, 10:39 | 7.91 | 7.91 |
| 12 Aug 2024, 09:22 | 7.84 | 7.84 |
| 9 Jul 2024, 13:07 | 7.84 | 7.84 |
| 7 Jun 2024, 10:27 | 7.92 | 7.92 |
| 6 Mar 2024, 10:27 | 8.04 | 8.04 |
| 7 Feb 2024, 11:56 | 8.15 | 8.15 |
| 9 Jan 2024, 09:48 | 7.97 | 7.97 |
| 4 Dec 2023, 14:18 | 8 | 8 |
| 7 Nov 2023, 12:38 | 7.95 | 7.95 |
| 4 Oct 2023, 12:45 | 7.74 | 7.74 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.08 mg/l
Sampled 15 Sep 2026, 16 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 0.08 | 0.08 mg/l |
| 11 Aug 2026, 13:42 | 0.054 | 0.054 mg/l |
| 8 Jul 2026, 09:42 | 0.05 | 0.05 mg/l |
| 1 Jun 2026, 12:23 | 0.091 | 0.091 mg/l |
| 14 May 2026, 15:09 | 0.09 | 0.09 mg/l |
| 29 Apr 2026, 12:15 | 0.1 | 0.1 mg/l |
| 5 Mar 2026, 15:14 | 0.16 | 0.16 mg/l |
| 5 Feb 2026, 10:04 | 0.092 | 0.092 mg/l |
| 12 Jan 2026, 12:18 | 0.18 | 0.18 mg/l |
| 4 Dec 2025, 09:32 | 0.16 | 0.16 mg/l |
| 5 Nov 2025, 10:16 | 0.078 | 0.078 mg/l |
| 10 Oct 2025, 11:05 | 0.09 | 0.09 mg/l |
| 11 Mar 2025, 13:55 | 0.13 | 0.13 mg/l |
| 10 Feb 2025, 13:23 | 0.15 | 0.15 mg/l |
| 16 Jan 2025, 11:48 | 0.16 | 0.16 mg/l |
| 9 Dec 2024, 14:53 | 0.087 | 0.087 mg/l |
| 11 Nov 2024, 11:13 | 0.093 | 0.093 mg/l |
| 3 Oct 2024, 10:00 | 0.042 | 0.042 mg/l |
| 11 Sep 2024, 10:39 | 0.094 | 0.094 mg/l |
| 12 Aug 2024, 09:22 | 0.043 | 0.043 mg/l |
| 9 Jul 2024, 13:07 | 0.42 | 0.42 mg/l |
| 7 Jun 2024, 10:27 | 0.062 | 0.062 mg/l |
| 6 Mar 2024, 10:27 | 0.12 | 0.12 mg/l |
| 7 Feb 2024, 11:56 | 0.2 | 0.2 mg/l |
| 9 Jan 2024, 09:48 | 0.11 | 0.11 mg/l |
| 4 Dec 2023, 14:18 | 0.15 | 0.15 mg/l |
| 7 Nov 2023, 12:38 | 0.064 | 0.064 mg/l |
| 4 Oct 2023, 12:45 | 0.05 | 0.05 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.64 mg/l
Sampled 15 Sep 2026, 16 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 7.64 | 7.64 mg/l |
| 11 Aug 2026, 13:42 | 8.15 | 8.15 mg/l |
| 8 Jul 2026, 09:42 | 6.15 | 6.15 mg/l |
| 1 Jun 2026, 12:23 | 7.78 | 7.78 mg/l |
| 14 May 2026, 15:09 | 9.39 | 9.39 mg/l |
| 29 Apr 2026, 12:15 | 9.31 | 9.31 mg/l |
| 5 Mar 2026, 15:14 | 8.03 | 8.03 mg/l |
| 5 Feb 2026, 10:04 | 11 | 11 mg/l |
| 12 Jan 2026, 12:18 | 10.9 | 10.9 mg/l |
| 4 Dec 2025, 09:32 | 13.9 | 13.9 mg/l |
| 5 Nov 2025, 10:16 | 9.9 | 9.9 mg/l |
| 10 Oct 2025, 11:05 | 10.9 | 10.9 mg/l |
| 11 Mar 2025, 13:55 | 8.55 | 8.55 mg/l |
| 10 Feb 2025, 13:23 | 9.12 | 9.12 mg/l |
| 16 Jan 2025, 11:48 | 8.02 | 8.02 mg/l |
| 9 Dec 2024, 14:53 | 7.76 | 7.76 mg/l |
| 11 Nov 2024, 11:13 | 8.72 | 8.72 mg/l |
| 3 Oct 2024, 10:00 | 6.44 | 6.44 mg/l |
| 11 Sep 2024, 10:39 | 9.93 | 9.93 mg/l |
| 12 Aug 2024, 09:22 | 7.76 | 7.76 mg/l |
| 9 Jul 2024, 13:07 | 6.03 | 6.03 mg/l |
| 7 Jun 2024, 10:27 | 7.58 | 7.58 mg/l |
| 6 Mar 2024, 10:27 | 6.53 | 6.53 mg/l |
| 7 Feb 2024, 11:56 | 9.13 | 9.13 mg/l |
| 9 Jan 2024, 09:48 | 5.84 | 5.84 mg/l |
| 4 Dec 2023, 14:18 | 10.9 | 10.9 mg/l |
| 7 Nov 2023, 12:38 | 8.96 | 8.96 mg/l |
| 4 Oct 2023, 12:45 | 6.75 | 6.75 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.28 mg/l
Sampled 15 Sep 2026, 16 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 0.28 | 0.28 mg/l |
| 8 Jul 2026, 09:42 | 0.22 | 0.22 mg/l |
| 1 Jun 2026, 12:23 | 0.18 | 0.18 mg/l |
| 14 May 2026, 15:09 | 0.15 | 0.15 mg/l |
| 29 Apr 2026, 12:15 | 0.1 | 0.1 mg/l |
| 5 Mar 2026, 15:14 | 0.095 | 0.095 mg/l |
| 5 Feb 2026, 10:04 | 0.096 | 0.096 mg/l |
| 12 Jan 2026, 12:18 | 0.13 | 0.13 mg/l |
| 4 Dec 2025, 09:32 | 0.21 | 0.21 mg/l |
| 5 Nov 2025, 10:16 | 0.32 | 0.32 mg/l |
| 10 Oct 2025, 11:05 | 0.28 | 0.28 mg/l |
| 11 Mar 2025, 13:55 | 0.087 | 0.087 mg/l |
| 10 Feb 2025, 13:23 | 0.11 | 0.11 mg/l |
| 16 Jan 2025, 11:48 | 0.14 | 0.14 mg/l |
| 9 Dec 2024, 14:53 | 0.1 | 0.1 mg/l |
| 11 Nov 2024, 11:13 | 0.15 | 0.15 mg/l |
| 3 Oct 2024, 10:00 | 0.16 | 0.16 mg/l |
| 11 Sep 2024, 10:39 | 0.25 | 0.25 mg/l |
| 12 Aug 2024, 09:22 | 0.22 | 0.22 mg/l |
| 9 Jul 2024, 13:07 | 0.24 | 0.24 mg/l |
| 7 Jun 2024, 10:27 | 0.15 | 0.15 mg/l |
| 6 Mar 2024, 10:27 | 0.097 | 0.097 mg/l |
| 7 Feb 2024, 11:56 | 0.15 | 0.15 mg/l |
| 9 Jan 2024, 09:48 | 0.12 | 0.12 mg/l |
| 4 Dec 2023, 14:18 | 0.15 | 0.15 mg/l |
| 7 Nov 2023, 12:38 | 0.16 | 0.16 mg/l |
| 4 Oct 2023, 12:45 | 0.31 | 0.31 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
968 µS/cm
Sampled 15 Sep 2026, 16 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Sep 2026, 10:46 | 968 | 968 µS/cm |
| 11 Aug 2026, 13:42 | 1037 | 1037 µS/cm |
| 8 Jul 2026, 09:42 | 915 | 915 µS/cm |
| 1 Jun 2026, 12:23 | 918 | 918 µS/cm |
| 14 May 2026, 15:09 | 910 | 910 µS/cm |
| 29 Apr 2026, 12:15 | 888 | 888 µS/cm |
| 5 Mar 2026, 15:14 | 753 | 753 µS/cm |
| 5 Feb 2026, 10:04 | 719 | 719 µS/cm |
| 12 Jan 2026, 12:18 | 804 | 804 µS/cm |
| 4 Dec 2025, 09:32 | 836 | 836 µS/cm |
| 5 Nov 2025, 10:16 | 976 | 976 µS/cm |
| 10 Oct 2025, 11:05 | 968 | 968 µS/cm |
| 7 Apr 2025, 14:54 | 865 | 865 µS/cm |
| 11 Mar 2025, 13:55 | 847 | 847 µS/cm |
| 10 Feb 2025, 13:23 | 832 | 832 µS/cm |
| 16 Jan 2025, 11:48 | 766 | 766 µS/cm |
| 9 Dec 2024, 14:53 | 583 | 583 µS/cm |
| 11 Nov 2024, 11:13 | 866 | 866 µS/cm |
| 3 Oct 2024, 10:00 | 513 | 513 µS/cm |
| 11 Sep 2024, 10:39 | 924 | 924 µS/cm |
| 12 Aug 2024, 09:22 | 902 | 902 µS/cm |
| 9 Jul 2024, 13:07 | 782 | 782 µS/cm |
| 7 Jun 2024, 10:27 | 841 | 841 µS/cm |
| 6 Mar 2024, 10:27 | 735 | 735 µS/cm |
| 7 Feb 2024, 11:56 | 845 | 845 µS/cm |
| 9 Jan 2024, 09:48 | 571 | 571 µS/cm |
| 4 Dec 2023, 14:18 | 870 | 870 µS/cm |
| 7 Nov 2023, 12:38 | 675 | 675 µS/cm |
| 4 Oct 2023, 12:45 | 798 | 798 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
2300 per 100 ml
Sampled 1 May 2024, 2.4 years ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 May 2024, 10:49 | 2300 | 2300 per 100 ml |
| 10 Apr 2024, 08:18 | 1200 | 1200 per 100 ml |
Everything measured here
17 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 17 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 29 | Oct 2023 – Sep 2026 | 54.4% 15 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – Sep 2026 | 5.04 mg/l 15 Sep 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – Sep 2026 | 18.9 °C 15 Sep 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Sep 2026 | 7.46 15 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Oct 2023 – Sep 2026 | 0.08 mg/l 15 Sep 2026 |
| Nitrate as N 0117 | River water | 28 | Oct 2023 – Sep 2026 | 7.64 mg/l 15 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Sep 2026 | 0.28 mg/l 15 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – Sep 2026 | 968 µS/cm 15 Sep 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 2 | Apr 2024 – May 2024 | 2300 per 100 ml 1 May 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – Sep 2026 | 170 mg/l 15 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Oct 2023 – Sep 2026 | 0.00082 mg/l 15 Sep 2026 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 2 | Apr 2024 – May 2024 | 450 colony forming units / 100ml 1 May 2024 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 2 | Apr 2024 – May 2024 | 450 colony forming units / 100ml 1 May 2024 |
| MST Filtration 4926 | River water | 2 | Apr 2024 – May 2024 | DNA Stored 1 May 2024 |
| Nitrite as N 0118 | River water | 28 | Oct 2023 – Sep 2026 | 0.057 mg/l 15 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Oct 2023 – Sep 2026 | 7.7 mg/l 15 Sep 2026 |
| Volume of Sample Filtered 4865 | River water | 2 | Apr 2024 – May 2024 | 490 millilitre 1 May 2024 |
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.