River Onny East at Whitcot Bridge
EA name: R.ONNY EAST AT WHITCOT BRIDGE (also listed as “RIVER ONNY EAST AT WHITCOT BRIDGE”)
Environment Agency sampling point MD-19828380 · 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
- 9 Mar 2026, 10:037 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 30 Sep 2026 and had nothing newer.
- Samples banked
- 27 since 9 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 (local monitoring)
- Where
- National Grid 337700, 291600As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Onny East
- River, by the map
- River East OnnyPlaced on a river whose name partly matches its own, 36 m from the line.
- Next gauge downstream
- Onibury On the River Onny · 23 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (14 samples)
Environmental monitoring statutory (EU directives) (9 samples)
Unplanned reactive monitoring (pollution incidents) (4 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.7%
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 93.7 | 93.7% |
| 2 Feb 2026, 09:53 | 99.6 | 99.6% |
| 14 Jan 2026, 09:56 | 100.5 | 100.5% |
| 17 Dec 2025, 13:03 | 98.2 | 98.2% |
| 26 Nov 2025, 10:40 | 101.5 | 101.5% |
| 20 Oct 2025, 10:47 | 96.3 | 96.3% |
| 25 Sep 2025, 15:24 | 100.9 | 100.9% |
| 20 Aug 2025, 10:48 | 88.1 | 88.1% |
| 7 Jul 2025, 12:49 | 98 | 98% |
| 5 Jun 2025, 11:15 | 95.6 | 95.6% |
| 2 May 2025, 12:19 | 99.4 | 99.4% |
| 10 Apr 2025, 13:29 | 107.5 | 107.5% |
| 26 Mar 2025, 14:03 | 106.1 | 106.1% |
| 18 Feb 2025, 13:14 | 102.7 | 102.7% |
| 30 Jan 2025, 10:19 | 99.8 | 99.8% |
| 17 Dec 2024, 09:57 | 99.9 | 99.9% |
| 7 Nov 2024, 10:52 | 96.3 | 96.3% |
| 29 Oct 2024, 14:49 | 99 | 99% |
| 28 Aug 2024, 11:20 | 100.1 | 100.1% |
| 1 Jul 2024, 12:40 | 99.9 | 99.9% |
| 21 Jun 2024, 13:59 | 100.7 | 100.7% |
| 14 Mar 2024, 10:18 | 99.8 | 99.8% |
| 1 Feb 2024, 11:17 | 96.5 | 96.5% |
| 12 Jan 2024, 11:07 | 99 | 99% |
| 27 Dec 2023, 12:31 | 98.8 | 98.8% |
| 3 Nov 2023, 10:46 | 98.1 | 98.1% |
| 9 Oct 2023, 10:53 | 97 | 97% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.1 mg/l
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 11.1 | 11.1 mg/l |
| 2 Feb 2026, 09:53 | 12.3 | 12.3 mg/l |
| 14 Jan 2026, 09:56 | 13.6 | 13.6 mg/l |
| 17 Dec 2025, 13:03 | 11.9 | 11.9 mg/l |
| 26 Nov 2025, 10:40 | 13.4 | 13.4 mg/l |
| 20 Oct 2025, 10:47 | 10.6 | 10.6 mg/l |
| 25 Sep 2025, 15:24 | 10.9 | 10.9 mg/l |
| 20 Aug 2025, 10:48 | 8.86 | 8.86 mg/l |
| 7 Jul 2025, 12:49 | 9.9 | 9.9 mg/l |
| 5 Jun 2025, 11:15 | 10.2 | 10.2 mg/l |
| 2 May 2025, 12:19 | 10.3 | 10.3 mg/l |
| 10 Apr 2025, 13:29 | 12.2 | 12.2 mg/l |
| 26 Mar 2025, 14:03 | 12 | 12 mg/l |
| 18 Feb 2025, 13:14 | 13.4 | 13.4 mg/l |
| 30 Jan 2025, 10:19 | 13.3 | 13.3 mg/l |
| 17 Dec 2024, 09:57 | 12.1 | 12.1 mg/l |
| 7 Nov 2024, 10:52 | 10.7 | 10.7 mg/l |
| 29 Oct 2024, 14:49 | 10.7 | 10.7 mg/l |
| 28 Aug 2024, 11:20 | 10.2 | 10.2 mg/l |
| 1 Jul 2024, 12:40 | 10.5 | 10.5 mg/l |
| 21 Jun 2024, 13:59 | 10.3 | 10.3 mg/l |
| 14 Mar 2024, 10:18 | 11.5 | 11.5 mg/l |
| 1 Feb 2024, 11:17 | 12.2 | 12.2 mg/l |
| 12 Jan 2024, 11:07 | 12.7 | 12.7 mg/l |
| 27 Dec 2023, 12:31 | 11.5 | 11.5 mg/l |
| 3 Nov 2023, 10:46 | 11.2 | 11.2 mg/l |
| 9 Oct 2023, 10:53 | 10.2 | 10.2 mg/l |
Water temperature
code 0076 · °C
7.8 °C
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 7.8 | 7.8 °C |
| 2 Feb 2026, 09:53 | 6.4 | 6.4 °C |
| 14 Jan 2026, 09:56 | 2.8 | 2.8 °C |
| 17 Dec 2025, 13:03 | 6.9 | 6.9 °C |
| 26 Nov 2025, 10:40 | 3.6 | 3.6 °C |
| 20 Oct 2025, 10:47 | 11.1 | 11.1 °C |
| 25 Sep 2025, 15:24 | 11.6 | 11.6 °C |
| 20 Aug 2025, 10:48 | 15 | 15 °C |
| 7 Jul 2025, 12:49 | 14.8 | 14.8 °C |
| 5 Jun 2025, 11:15 | 12.4 | 12.4 °C |
| 2 May 2025, 12:19 | 13.6 | 13.6 °C |
| 10 Apr 2025, 13:29 | 9.8 | 9.8 °C |
| 26 Mar 2025, 14:03 | 10 | 10 °C |
| 18 Feb 2025, 13:14 | 4.1 | 4.1 °C |
| 30 Jan 2025, 10:19 | 3.3 | 3.3 °C |
| 17 Dec 2024, 09:57 | 7.1 | 7.1 °C |
| 7 Nov 2024, 10:52 | 10.4 | 10.4 °C |
| 29 Oct 2024, 14:49 | 11.7 | 11.7 °C |
| 28 Aug 2024, 11:20 | 14.3 | 14.3 °C |
| 1 Jul 2024, 12:40 | 13 | 13 °C |
| 21 Jun 2024, 13:59 | 14.1 | 14.1 °C |
| 14 Mar 2024, 10:18 | 8.9 | 8.9 °C |
| 1 Feb 2024, 11:17 | 5.4 | 5.4 °C |
| 12 Jan 2024, 11:07 | 4.7 | 4.7 °C |
| 27 Dec 2023, 12:31 | 8.6 | 8.6 °C |
| 3 Nov 2023, 10:46 | 9.3 | 9.3 °C |
| 9 Oct 2023, 10:53 | 12.9 | 12.9 °C |
pH
code 0061
8.37
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 8.37 | 8.37 |
| 2 Feb 2026, 09:53 | 8.1 | 8.1 |
| 14 Jan 2026, 09:56 | 7.44 | 7.44 |
| 17 Dec 2025, 13:03 | 7.63 | 7.63 |
| 26 Nov 2025, 10:40 | 7.7 | 7.7 |
| 20 Oct 2025, 10:47 | 7.94 | 7.94 |
| 25 Sep 2025, 15:24 | 8.23 | 8.23 |
| 20 Aug 2025, 10:48 | 7.91 | 7.91 |
| 7 Jul 2025, 12:49 | 7.99 | 7.99 |
| 5 Jun 2025, 11:15 | 7.97 | 7.97 |
| 2 May 2025, 12:19 | 8.08 | 8.08 |
| 10 Apr 2025, 13:29 | 8.27 | 8.27 |
| 26 Mar 2025, 14:03 | 8.3 | 8.3 |
| 18 Feb 2025, 13:14 | 8.26 | 8.26 |
| 30 Jan 2025, 10:19 | 7.61 | 7.61 |
| 17 Dec 2024, 09:57 | 7.54 | 7.54 |
| 7 Nov 2024, 10:52 | 7.83 | 7.83 |
| 29 Oct 2024, 14:49 | 7.95 | 7.95 |
| 28 Aug 2024, 11:20 | 7.94 | 7.94 |
| 1 Jul 2024, 12:40 | 8.17 | 8.17 |
| 21 Jun 2024, 13:59 | 8.02 | 8.02 |
| 14 Mar 2024, 10:18 | 7.82 | 7.82 |
| 1 Feb 2024, 11:17 | 7.64 | 7.64 |
| 12 Jan 2024, 11:07 | 7.65 | 7.65 |
| 27 Dec 2023, 12:31 | 7.45 | 7.45 |
| 3 Nov 2023, 10:46 | 7.49 | 7.49 |
| 9 Oct 2023, 10:53 | 7.94 | 7.94 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.078 mg/l
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 0.078 | 0.078 mg/l |
| 2 Feb 2026, 09:53 | 0.048 | 0.048 mg/l |
| 14 Jan 2026, 09:56 | 0.054 | 0.054 mg/l |
| 17 Dec 2025, 13:03 | 0.034 | 0.034 mg/l |
| 26 Nov 2025, 10:40 | 0.051 | 0.051 mg/l |
| 20 Oct 2025, 10:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Sep 2025, 15:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Aug 2025, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jul 2025, 12:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jun 2025, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 May 2025, 12:19 | 0.16 | 0.16 mg/l |
| 10 Apr 2025, 13:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2025, 14:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Feb 2025, 13:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jan 2025, 10:19 | 0.054 | 0.054 mg/l |
| 17 Dec 2024, 09:57 | 0.034 | 0.034 mg/l |
| 7 Nov 2024, 10:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Oct 2024, 14:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Aug 2024, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2024, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jun 2024, 13:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Mar 2024, 10:18 | 0.056 | 0.056 mg/l |
| 1 Feb 2024, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jan 2024, 11:07 | 0.1 | 0.1 mg/l |
| 27 Dec 2023, 12:31 | 0.14 | 0.14 mg/l |
| 3 Nov 2023, 10:46 | 0.11 | 0.11 mg/l |
| 9 Oct 2023, 10:53 | 0.031 | 0.031 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.48 mg/l
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 1.48 | 1.48 mg/l |
| 2 Feb 2026, 09:53 | 1.99 | 1.99 mg/l |
| 14 Jan 2026, 09:56 | 2.4 | 2.4 mg/l |
| 17 Dec 2025, 13:03 | 2.19 | 2.19 mg/l |
| 26 Nov 2025, 10:40 | 2.1 | 2.1 mg/l |
| 20 Oct 2025, 10:47 | 0.586 | 0.586 mg/l |
| 25 Sep 2025, 15:24 | 1.3 | 1.3 mg/l |
| 20 Aug 2025, 10:48 | 0.656 | 0.656 mg/l |
| 7 Jul 2025, 12:49 | 1.09 | 1.09 mg/l |
| 5 Jun 2025, 11:15 | 0.854 | 0.854 mg/l |
| 2 May 2025, 12:19 | 2.06 | 2.06 mg/l |
| 10 Apr 2025, 13:29 | 1.09 | 1.09 mg/l |
| 26 Mar 2025, 14:03 | 1.09 | 1.09 mg/l |
| 18 Feb 2025, 13:14 | 1.49 | 1.49 mg/l |
| 30 Jan 2025, 10:19 | 1.7 | 1.7 mg/l |
| 17 Dec 2024, 09:57 | 1.29 | 1.29 mg/l |
| 7 Nov 2024, 10:52 | 0.926 | 0.926 mg/l |
| 29 Oct 2024, 14:49 | 0.856 | 0.856 mg/l |
| 28 Aug 2024, 11:20 | 1.1 | 1.1 mg/l |
| 1 Jul 2024, 12:40 | 1.09 | 1.09 mg/l |
| 21 Jun 2024, 13:59 | 2.09 | 2.09 mg/l |
| 14 Mar 2024, 10:18 | 1.49 | 1.49 mg/l |
| 1 Feb 2024, 11:17 | 2.2 | 2.2 mg/l |
| 12 Jan 2024, 11:07 | 1.79 | 1.79 mg/l |
| 27 Dec 2023, 12:31 | 0.985 | 0.985 mg/l |
| 3 Nov 2023, 10:46 | 1.59 | 1.59 mg/l |
| 9 Oct 2023, 10:53 | 1.19 | 1.19 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.035 mg/l
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 0.035 | 0.035 mg/l |
| 2 Feb 2026, 09:53 | 0.029 | 0.029 mg/l |
| 14 Jan 2026, 09:56 | 0.15 | 0.15 mg/l |
| 17 Dec 2025, 13:03 | 0.028 | 0.028 mg/l |
| 26 Nov 2025, 10:40 | 0.027 | 0.027 mg/l |
| 20 Oct 2025, 10:47 | 0.029 | 0.029 mg/l |
| 25 Sep 2025, 15:24 | 0.039 | 0.039 mg/l |
| 20 Aug 2025, 10:48 | 0.072 | 0.072 mg/l |
| 7 Jul 2025, 12:49 | 0.11 | 0.11 mg/l |
| 5 Jun 2025, 11:15 | 0.12 | 0.12 mg/l |
| 2 May 2025, 12:19 | 0.071 | 0.071 mg/l |
| 10 Apr 2025, 13:29 | 0.037 | 0.037 mg/l |
| 26 Mar 2025, 14:03 | 0.031 | 0.031 mg/l |
| 18 Feb 2025, 13:14 | 0.073 | 0.073 mg/l |
| 30 Jan 2025, 10:19 | 0.13 | 0.13 mg/l |
| 17 Dec 2024, 09:57 | 0.047 | 0.047 mg/l |
| 7 Nov 2024, 10:52 | 0.029 | 0.029 mg/l |
| 29 Oct 2024, 14:49 | 0.031 | 0.031 mg/l |
| 28 Aug 2024, 11:20 | 0.054 | 0.054 mg/l |
| 1 Jul 2024, 12:40 | 0.052 | 0.052 mg/l |
| 21 Jun 2024, 13:59 | 0.043 | 0.043 mg/l |
| 14 Mar 2024, 10:18 | 0.043 | 0.043 mg/l |
| 1 Feb 2024, 11:17 | 0.13 | 0.13 mg/l |
| 12 Jan 2024, 11:07 | 0.62 | 0.62 mg/l |
| 27 Dec 2023, 12:31 | 0.057 | 0.057 mg/l |
| 3 Nov 2023, 10:46 | 0.13 | 0.13 mg/l |
| 9 Oct 2023, 10:53 | 0.056 | 0.056 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
106 µS/cm
Sampled 9 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 10:03 | 106 | 106 µS/cm |
| 2 Feb 2026, 09:53 | 115 | 115 µS/cm |
| 14 Jan 2026, 09:56 | 107 | 107 µS/cm |
| 17 Dec 2025, 13:03 | 103 | 103 µS/cm |
| 26 Nov 2025, 10:40 | 111 | 111 µS/cm |
| 20 Oct 2025, 10:47 | 180 | 180 µS/cm |
| 25 Sep 2025, 15:24 | 155 | 155 µS/cm |
| 20 Aug 2025, 10:48 | 311 | 311 µS/cm |
| 7 Jul 2025, 12:49 | 250 | 250 µS/cm |
| 5 Jun 2025, 11:15 | 201 | 201 µS/cm |
| 2 May 2025, 12:19 | 152 | 152 µS/cm |
| 10 Apr 2025, 13:29 | 171 | 171 µS/cm |
| 26 Mar 2025, 14:03 | 152 | 152 µS/cm |
| 18 Feb 2025, 13:14 | 139 | 139 µS/cm |
| 30 Jan 2025, 10:19 | 114 | 114 µS/cm |
| 17 Dec 2024, 09:57 | 107 | 107 µS/cm |
| 7 Nov 2024, 10:52 | 115 | 115 µS/cm |
| 29 Oct 2024, 14:49 | 115 | 115 µS/cm |
| 28 Aug 2024, 11:20 | 196 | 196 µS/cm |
| 1 Jul 2024, 12:40 | 150 | 150 µS/cm |
| 21 Jun 2024, 13:59 | 133 | 133 µS/cm |
| 14 Mar 2024, 10:18 | 106 | 106 µS/cm |
| 1 Feb 2024, 11:17 | 180 | 180 µS/cm |
| 12 Jan 2024, 11:07 | 149 | 149 µS/cm |
| 27 Dec 2023, 12:31 | 106 | 106 µS/cm |
| 3 Nov 2023, 10:46 | 126 | 126 µS/cm |
| 9 Oct 2023, 10:53 | 119 | 119 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 | 27 | Oct 2023 – Mar 2026 | 93.7% 9 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Oct 2023 – Mar 2026 | 11.1 mg/l 9 Mar 2026 |
| Temperature of Water 0076 | River water | 27 | Oct 2023 – Mar 2026 | 7.8 °C 9 Mar 2026 |
| pH 0061 | River water | 27 | Oct 2023 – Mar 2026 | 8.37 9 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – Mar 2026 | 0.078 mg/l 9 Mar 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – Mar 2026 | 1.48 mg/l 9 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Mar 2026 | 0.035 mg/l 9 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Oct 2023 – Mar 2026 | 106 µS/cm 9 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Oct 2023 – Mar 2026 | 25 mg/l 9 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Oct 2023 – Mar 2026 | 0.00121 mg/l 9 Mar 2026 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – Mar 2026 | 0.017 mg/l 9 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Mar 2026 | 1.5 mg/l 9 Mar 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.