Willoughby High Drain Hogsthorpe
EA name: WILLOUGHBY HIGH DRN.HOGSTHORPE
Environment Agency sampling point AN-WHDR1 · 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
- 7 Sep 2026, 11:5524 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 28 since 11 Jun 2024 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 554187, 371394As published, to the nearest 1 m. Open in a map
- River, by its own name
- Willoughby High
- River, by the map
- Willoughby High DrainPlaced on a river whose name partly matches its own, 1 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Environmental monitoring statutory (EU directives) (28 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
75.3%
Sampled 7 Sep 2026, 24 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 75.3 | 75.3% |
| 7 Aug 2026, 12:19 | 105.7 | 105.7% |
| 3 Jul 2026, 11:10 | 80.1 | 80.1% |
| 9 Jun 2026, 10:14 | 110.3 | 110.3% |
| 15 May 2026, 07:43 | 110.4 | 110.4% |
| 27 Apr 2026, 10:15 | 125.7 | 125.7% |
| 13 Mar 2026, 08:45 | 91.8 | 91.8% |
| 9 Feb 2026, 10:34 | 81.6 | 81.6% |
| 14 Jan 2026, 09:41 | 77.4 | 77.4% |
| 5 Dec 2025, 09:32 | 86.9 | 86.9% |
| 7 Nov 2025, 08:14 | 84.7 | 84.7% |
| 17 Oct 2025, 10:28 | 65.8 | 65.8% |
| 1 Sep 2025, 12:57 | 70.1 | 70.1% |
| 6 Aug 2025, 09:21 | 61.4 | 61.4% |
| 24 Jul 2025, 08:07 | 54.3 | 54.3% |
| 3 Jun 2025, 08:22 | 103.2 | 103.2% |
| 15 May 2025, 08:42 | 95.2 | 95.2% |
| 2 Apr 2025, 11:48 | 114.6 | 114.6% |
| 7 Mar 2025, 08:21 | 96.3 | 96.3% |
| 14 Feb 2025, 10:01 | 91.3 | 91.3% |
| 7 Jan 2025, 09:24 | 83.6 | 83.6% |
| 9 Dec 2024, 11:21 | 86.1 | 86.1% |
| 8 Nov 2024, 08:51 | 87.2 | 87.2% |
| 2 Oct 2024, 09:15 | 69.6 | 69.6% |
| 11 Sep 2024, 12:04 | 90.3 | 90.3% |
| 15 Aug 2024, 11:42 | 75.1 | 75.1% |
| 3 Jul 2024, 11:07 | 88.7 | 88.7% |
| 11 Jun 2024, 12:45 | 73.7 | 73.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.3 mg/l
Sampled 7 Sep 2026, 24 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 7.3 | 7.3 mg/l |
| 7 Aug 2026, 12:19 | 9.98 | 9.98 mg/l |
| 3 Jul 2026, 11:10 | 7.41 | 7.41 mg/l |
| 9 Jun 2026, 10:14 | 10.9 | 10.9 mg/l |
| 15 May 2026, 07:43 | 12.1 | 12.1 mg/l |
| 27 Apr 2026, 10:15 | 12.9 | 12.9 mg/l |
| 13 Mar 2026, 08:45 | 10.8 | 10.8 mg/l |
| 9 Feb 2026, 10:34 | 9.79 | 9.79 mg/l |
| 14 Jan 2026, 09:41 | 10 | 10 mg/l |
| 5 Dec 2025, 09:32 | 10.9 | 10.9 mg/l |
| 7 Nov 2025, 08:14 | 9.17 | 9.17 mg/l |
| 17 Oct 2025, 10:28 | 7.08 | 7.08 mg/l |
| 1 Sep 2025, 12:57 | 6.83 | 6.83 mg/l |
| 6 Aug 2025, 09:21 | 6.07 | 6.07 mg/l |
| 24 Jul 2025, 08:07 | 5.05 | 5.05 mg/l |
| 3 Jun 2025, 08:22 | 10.3 | 10.3 mg/l |
| 15 May 2025, 08:42 | 9.66 | 9.66 mg/l |
| 2 Apr 2025, 11:48 | 12.9 | 12.9 mg/l |
| 7 Mar 2025, 08:21 | 11.4 | 11.4 mg/l |
| 14 Feb 2025, 10:01 | 11.7 | 11.7 mg/l |
| 7 Jan 2025, 09:24 | 10.9 | 10.9 mg/l |
| 9 Dec 2024, 11:21 | 10.3 | 10.3 mg/l |
| 8 Nov 2024, 08:51 | 9.71 | 9.71 mg/l |
| 2 Oct 2024, 09:15 | 7.27 | 7.27 mg/l |
| 11 Sep 2024, 12:04 | 9.43 | 9.43 mg/l |
| 15 Aug 2024, 11:42 | 6.91 | 6.91 mg/l |
| 3 Jul 2024, 11:07 | 8.75 | 8.75 mg/l |
| 11 Jun 2024, 12:45 | 7.76 | 7.76 mg/l |
Water temperature
code 0076 · °C
16.7 °C
Sampled 7 Sep 2026, 24 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 16.7 | 16.7 °C |
| 7 Aug 2026, 12:19 | 18 | 18 °C |
| 3 Jul 2026, 11:10 | 19 | 19 °C |
| 9 Jun 2026, 10:14 | 15.7 | 15.7 °C |
| 15 May 2026, 07:43 | 11.1 | 11.1 °C |
| 27 Apr 2026, 10:15 | 14.1 | 14.1 °C |
| 13 Mar 2026, 08:45 | 8.2 | 8.2 °C |
| 9 Feb 2026, 10:34 | 7.4 | 7.4 °C |
| 14 Jan 2026, 09:41 | 4.5 | 4.5 °C |
| 5 Dec 2025, 09:32 | 5.7 | 5.7 °C |
| 7 Nov 2025, 08:14 | 11.7 | 11.7 °C |
| 17 Oct 2025, 10:28 | 12 | 12 °C |
| 1 Sep 2025, 12:57 | 16.5 | 16.5 °C |
| 6 Aug 2025, 09:21 | 15.8 | 15.8 °C |
| 24 Jul 2025, 08:07 | 18.7 | 18.7 °C |
| 3 Jun 2025, 08:22 | 15.5 | 15.5 °C |
| 15 May 2025, 08:42 | 14.6 | 14.6 °C |
| 2 Apr 2025, 11:48 | 10.1 | 10.1 °C |
| 7 Mar 2025, 08:21 | 7.9 | 7.9 °C |
| 14 Feb 2025, 10:01 | 4.7 | 4.7 °C |
| 7 Jan 2025, 09:24 | 4.1 | 4.1 °C |
| 9 Dec 2024, 11:21 | 7.6 | 7.6 °C |
| 8 Nov 2024, 08:51 | 10.5 | 10.5 °C |
| 2 Oct 2024, 09:15 | 13.3 | 13.3 °C |
| 11 Sep 2024, 12:04 | 13.3 | 13.3 °C |
| 15 Aug 2024, 11:42 | 19.3 | 19.3 °C |
| 3 Jul 2024, 11:07 | 15.9 | 15.9 °C |
| 11 Jun 2024, 12:45 | 12.9 | 12.9 °C |
pH
code 0061
7.58
Sampled 7 Sep 2026, 24 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 7.58 | 7.58 |
| 7 Aug 2026, 12:19 | 8.03 | 8.03 |
| 3 Jul 2026, 11:10 | 7.74 | 7.74 |
| 9 Jun 2026, 10:14 | 7.98 | 7.98 |
| 15 May 2026, 07:43 | 7.99 | 7.99 |
| 27 Apr 2026, 10:15 | 8.23 | 8.23 |
| 13 Mar 2026, 08:45 | 8.51 | 8.51 |
| 9 Feb 2026, 10:34 | 7.55 | 7.55 |
| 14 Jan 2026, 09:41 | 7.68 | 7.68 |
| 5 Dec 2025, 09:32 | 7.92 | 7.92 |
| 7 Nov 2025, 08:14 | 8.06 | 8.06 |
| 17 Oct 2025, 10:28 | 7.79 | 7.79 |
| 1 Sep 2025, 12:57 | 7.36 | 7.36 |
| 6 Aug 2025, 09:21 | 7.5 | 7.5 |
| 24 Jul 2025, 08:07 | 7.44 | 7.44 |
| 3 Jun 2025, 08:22 | 8.07 | 8.07 |
| 15 May 2025, 08:42 | 7.86 | 7.86 |
| 2 Apr 2025, 11:48 | 8.39 | 8.39 |
| 7 Mar 2025, 08:21 | 8.11 | 8.11 |
| 14 Feb 2025, 10:01 | 8.34 | 8.34 |
| 7 Jan 2025, 09:24 | 7.68 | 7.68 |
| 9 Dec 2024, 11:21 | 7.7 | 7.7 |
| 8 Nov 2024, 08:51 | 8.03 | 8.03 |
| 2 Oct 2024, 09:15 | 7.58 | 7.58 |
| 11 Sep 2024, 12:04 | 8.27 | 8.27 |
| 15 Aug 2024, 11:42 | 7.79 | 7.79 |
| 3 Jul 2024, 11:07 | 7.72 | 7.72 |
| 11 Jun 2024, 12:45 | 7.64 | 7.64 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 7 Sep 2026, 24 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2026, 12:19 | 0.074 | 0.074 mg/l |
| 3 Jul 2026, 11:10 | 0.032 | 0.032 mg/l |
| 9 Jun 2026, 10:14 | 0.041 | 0.041 mg/l |
| 15 May 2026, 07:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Apr 2026, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2026, 08:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 10:34 | 0.077 | 0.077 mg/l |
| 14 Jan 2026, 09:41 | 0.087 | 0.087 mg/l |
| 5 Dec 2025, 09:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 08:14 | 0.086 | 0.086 mg/l |
| 17 Oct 2025, 10:28 | 0.11 | 0.11 mg/l |
| 1 Sep 2025, 12:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Aug 2025, 09:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jul 2025, 08:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2025, 08:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 May 2025, 08:42 | 0.059 | 0.059 mg/l |
| 7 Mar 2025, 08:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Feb 2025, 10:01 | 0.11 | 0.11 mg/l |
| 7 Jan 2025, 09:24 | 0.068 | 0.068 mg/l |
| 9 Dec 2024, 11:21 | 0.07 | 0.07 mg/l |
| 8 Nov 2024, 08:51 | 0.033 | 0.033 mg/l |
| 2 Oct 2024, 09:15 | 0.089 | 0.089 mg/l |
| 11 Sep 2024, 12:04 | 0.094 | 0.094 mg/l |
| 15 Aug 2024, 11:42 | 0.039 | 0.039 mg/l |
| 3 Jul 2024, 11:07 | 0.045 | 0.045 mg/l |
| 11 Jun 2024, 12:45 | 0.074 | 0.074 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.98 mg/l
Sampled 7 Sep 2026, 24 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 0.98 | 0.98 mg/l |
| 7 Aug 2026, 12:19 | 0.992 | 0.992 mg/l |
| 3 Jul 2026, 11:10 | 0.339 | 0.339 mg/l |
| 9 Jun 2026, 10:14 | 1.77 | 1.77 mg/l |
| 15 May 2026, 07:43 | 4.47 | 4.47 mg/l |
| 27 Apr 2026, 10:15 | 5.97 | 5.97 mg/l |
| 13 Mar 2026, 08:45 | 9.99 | 9.99 mg/l |
| 9 Feb 2026, 10:34 | 8.28 | 8.28 mg/l |
| 14 Jan 2026, 09:41 | 9.58 | 9.58 mg/l |
| 5 Dec 2025, 09:32 | 15 | 15 mg/l |
| 7 Nov 2025, 08:14 | 1.68 | 1.68 mg/l |
| 17 Oct 2025, 10:28 | 1.49 | 1.49 mg/l |
| 1 Sep 2025, 12:57 | 1.19 | 1.19 mg/l |
| 6 Aug 2025, 09:21 | 0.984 | 0.984 mg/l |
| 24 Jul 2025, 08:07 | 1.05 | 1.05 mg/l |
| 3 Jun 2025, 08:22 | 1.77 | 1.77 mg/l |
| 15 May 2025, 08:42 | 2.75 | 2.75 mg/l |
| 7 Mar 2025, 08:21 | 6.18 | 6.18 mg/l |
| 14 Feb 2025, 10:01 | 6.78 | 6.78 mg/l |
| 7 Jan 2025, 09:24 | 5.39 | 5.39 mg/l |
| 9 Dec 2024, 11:21 | 6.58 | 6.58 mg/l |
| 8 Nov 2024, 08:51 | 6.48 | 6.48 mg/l |
| 2 Oct 2024, 09:15 | 12 | 12 mg/l |
| 11 Sep 2024, 12:04 | 3.17 | 3.17 mg/l |
| 15 Aug 2024, 11:42 | 2.85 | 2.85 mg/l |
| 3 Jul 2024, 11:07 | 3.07 | 3.07 mg/l |
| 11 Jun 2024, 12:45 | 7.07 | 7.07 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.024 mg/l
Sampled 7 Sep 2026, 24 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 0.024 | 0.024 mg/l |
| 7 Aug 2026, 12:19 | 0.036 | 0.036 mg/l |
| 3 Jul 2026, 11:10 | 0.037 | 0.037 mg/l |
| 9 Jun 2026, 10:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 15 May 2026, 07:43 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Apr 2026, 10:15 | 0.012 | 0.012 mg/l |
| 13 Mar 2026, 08:45 | 0.011 | 0.011 mg/l |
| 9 Feb 2026, 10:34 | 0.039 | 0.039 mg/l |
| 14 Jan 2026, 09:41 | 0.039 | 0.039 mg/l |
| 5 Dec 2025, 09:32 | 0.033 | 0.033 mg/l |
| 7 Nov 2025, 08:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 17 Oct 2025, 10:28 | 0.013 | 0.013 mg/l |
| 1 Sep 2025, 12:57 | 0.03 | 0.03 mg/l |
| 6 Aug 2025, 09:21 | 0.022 | 0.022 mg/l |
| 24 Jul 2025, 08:07 | 0.026 | 0.026 mg/l |
| 3 Jun 2025, 08:22 | <0.01 | below 0.01 mg/l (not detected above this) |
| 15 May 2025, 08:42 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Mar 2025, 08:21 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Feb 2025, 10:01 | 0.032 | 0.032 mg/l |
| 7 Jan 2025, 09:24 | 0.17 | 0.17 mg/l |
| 8 Nov 2024, 08:51 | <0.01 | below 0.01 mg/l (not detected above this) |
| 2 Oct 2024, 09:15 | 0.15 | 0.15 mg/l |
| 11 Sep 2024, 12:04 | 0.03 | 0.03 mg/l |
| 15 Aug 2024, 11:42 | 0.032 | 0.032 mg/l |
| 3 Jul 2024, 11:07 | 0.011 | 0.011 mg/l |
| 11 Jun 2024, 12:45 | 0.055 | 0.055 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
652 µS/cm
Sampled 7 Sep 2026, 24 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:55 | 652 | 652 µS/cm |
| 7 Aug 2026, 12:19 | 597 | 597 µS/cm |
| 3 Jul 2026, 11:10 | 615 | 615 µS/cm |
| 9 Jun 2026, 10:14 | 603 | 603 µS/cm |
| 15 May 2026, 07:43 | 625 | 625 µS/cm |
| 27 Apr 2026, 10:15 | 650 | 650 µS/cm |
| 13 Mar 2026, 08:45 | 755 | 755 µS/cm |
| 9 Feb 2026, 10:34 | 1065 | 1065 µS/cm |
| 14 Jan 2026, 09:41 | 1137 | 1137 µS/cm |
| 5 Dec 2025, 09:32 | 740 | 740 µS/cm |
| 7 Nov 2025, 08:14 | 709 | 709 µS/cm |
| 17 Oct 2025, 10:28 | 689 | 689 µS/cm |
| 1 Sep 2025, 12:57 | 570 | 570 µS/cm |
| 6 Aug 2025, 09:21 | 584 | 584 µS/cm |
| 24 Jul 2025, 08:07 | 600 | 600 µS/cm |
| 3 Jun 2025, 08:22 | 551 | 551 µS/cm |
| 15 May 2025, 08:42 | 660 | 660 µS/cm |
| 2 Apr 2025, 11:48 | 704 | 704 µS/cm |
| 7 Mar 2025, 08:21 | 808 | 808 µS/cm |
| 14 Feb 2025, 10:01 | 923 | 923 µS/cm |
| 7 Jan 2025, 09:24 | 434 | 434 µS/cm |
| 9 Dec 2024, 11:21 | 674 | 674 µS/cm |
| 8 Nov 2024, 08:51 | 769 | 769 µS/cm |
| 2 Oct 2024, 09:15 | 526 | 526 µS/cm |
| 11 Sep 2024, 12:04 | 907 | 907 µS/cm |
| 15 Aug 2024, 11:42 | 698 | 698 µS/cm |
| 3 Jul 2024, 11:07 | 709 | 709 µS/cm |
| 11 Jun 2024, 12:45 | 528 | 528 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 28 | Jun 2024 – Sep 2026 | 75.3% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Jun 2024 – Sep 2026 | 7.3 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 28 | Jun 2024 – Sep 2026 | 16.7 °C 7 Sep 2026 |
| pH 0061 | River water | 28 | Jun 2024 – Sep 2026 | 7.58 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jun 2024 – Sep 2026 | below 0.03 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 27 | Jun 2024 – Sep 2026 | 0.98 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 26 | Jun 2024 – Sep 2026 | 0.024 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Jun 2024 – Sep 2026 | 652 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Sep 2026 | 230 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jun 2024 – Sep 2026 | below 0.00035 mg/l 7 Sep 2026 |
| Nitrite as N 0118 | River water | 27 | Jun 2024 – Sep 2026 | 0.01 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jun 2024 – Sep 2026 | 0.99 mg/l 7 Sep 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.