Tributary of Onny off Roadbridge N of Eaton
EA name: TRIB OF ONNY OFF ROADBRIDGE N OF EATON (also listed as “TRIB OF RIVER ONNY OFF ROADBRIDGE NORTH OF EATON”)
Environment Agency sampling point MD-19785120 · 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
- 12 Mar 2025, 09:5719 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
- 10 since 14 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 337947, 289764As published, to the nearest 1 m. Open in a map
- River, by its own name
- Onny Off Roadbridge North Eaton
- River, by the map
- Criftin BrookOn a small stream traced into the river its name gives, 4 m from the line.
- Next gauge downstream
- Onibury On the River Onny · 19 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (10 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.6%
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 98.6 | 98.6% |
| 25 Feb 2025, 11:13 | 100.2 | 100.2% |
| 3 Jan 2025, 10:57 | 100.2 | 100.2% |
| 17 Dec 2024, 10:06 | 99.4 | 99.4% |
| 13 Nov 2024, 14:01 | 97.9 | 97.9% |
| 28 Oct 2024, 11:24 | 100.3 | 100.3% |
| 3 Sep 2024, 13:26 | 93.7 | 93.7% |
| 8 Aug 2024, 10:25 | 90.3 | 90.3% |
| 3 Jul 2024, 11:11 | 97 | 97% |
| 14 Jun 2024, 11:32 | 99.9 | 99.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.5 mg/l
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 12.5 | 12.5 mg/l |
| 25 Feb 2025, 11:13 | 12.5 | 12.5 mg/l |
| 3 Jan 2025, 10:57 | 13.5 | 13.5 mg/l |
| 17 Dec 2024, 10:06 | 12 | 12 mg/l |
| 13 Nov 2024, 14:01 | 11.6 | 11.6 mg/l |
| 28 Oct 2024, 11:24 | 10.8 | 10.8 mg/l |
| 3 Sep 2024, 13:26 | 9.49 | 9.49 mg/l |
| 8 Aug 2024, 10:25 | 9.18 | 9.18 mg/l |
| 3 Jul 2024, 11:11 | 10.3 | 10.3 mg/l |
| 14 Jun 2024, 11:32 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
5.1 °C
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 5.1 | 5.1 °C |
| 25 Feb 2025, 11:13 | 5.9 | 5.9 °C |
| 3 Jan 2025, 10:57 | 2.8 | 2.8 °C |
| 17 Dec 2024, 10:06 | 7.2 | 7.2 °C |
| 13 Nov 2024, 14:01 | 7.8 | 7.8 °C |
| 28 Oct 2024, 11:24 | 11.8 | 11.8 °C |
| 3 Sep 2024, 13:26 | 14.7 | 14.7 °C |
| 8 Aug 2024, 10:25 | 14.5 | 14.5 °C |
| 3 Jul 2024, 11:11 | 12.6 | 12.6 °C |
| 14 Jun 2024, 11:32 | 11.9 | 11.9 °C |
pH
code 0061
8.22
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 8.22 | 8.22 |
| 25 Feb 2025, 11:13 | 7.78 | 7.78 |
| 3 Jan 2025, 10:57 | 7.77 | 7.77 |
| 17 Dec 2024, 10:06 | 7.42 | 7.42 |
| 13 Nov 2024, 14:01 | 7.97 | 7.97 |
| 28 Oct 2024, 11:24 | 7.97 | 7.97 |
| 3 Sep 2024, 13:26 | 7.67 | 7.67 |
| 8 Aug 2024, 10:25 | 7.77 | 7.77 |
| 3 Jul 2024, 11:11 | 8.5 | 8.5 |
| 14 Jun 2024, 11:32 | 7.89 | 7.89 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2025, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jan 2025, 10:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Dec 2024, 10:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Nov 2024, 14:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Oct 2024, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2024, 13:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Aug 2024, 10:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2024, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jun 2024, 11:32 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.1 mg/l
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 2.1 | 2.1 mg/l |
| 25 Feb 2025, 11:13 | 2.3 | 2.3 mg/l |
| 3 Jan 2025, 10:57 | 2.2 | 2.2 mg/l |
| 17 Dec 2024, 10:06 | 2 | 2 mg/l |
| 13 Nov 2024, 14:01 | 1.4 | 1.4 mg/l |
| 28 Oct 2024, 11:24 | 1.5 | 1.5 mg/l |
| 3 Sep 2024, 13:26 | 1.2 | 1.2 mg/l |
| 8 Aug 2024, 10:25 | 1.5 | 1.5 mg/l |
| 3 Jul 2024, 11:11 | 1.69 | 1.69 mg/l |
| 14 Jun 2024, 11:32 | 1.39 | 1.39 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.024 mg/l
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 0.024 | 0.024 mg/l |
| 25 Feb 2025, 11:13 | 0.11 | 0.11 mg/l |
| 3 Jan 2025, 10:57 | 0.068 | 0.068 mg/l |
| 17 Dec 2024, 10:06 | 0.031 | 0.031 mg/l |
| 13 Nov 2024, 14:01 | 0.029 | 0.029 mg/l |
| 28 Oct 2024, 11:24 | 0.018 | 0.018 mg/l |
| 3 Sep 2024, 13:26 | 0.072 | 0.072 mg/l |
| 8 Aug 2024, 10:25 | 0.048 | 0.048 mg/l |
| 3 Jul 2024, 11:11 | 0.046 | 0.046 mg/l |
| 14 Jun 2024, 11:32 | 0.027 | 0.027 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
202 µS/cm
Sampled 12 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2025, 09:57 | 202 | 202 µS/cm |
| 25 Feb 2025, 11:13 | 164 | 164 µS/cm |
| 3 Jan 2025, 10:57 | 179 | 179 µS/cm |
| 17 Dec 2024, 10:06 | 154 | 154 µS/cm |
| 13 Nov 2024, 14:01 | 208 | 208 µS/cm |
| 28 Oct 2024, 11:24 | 171 | 171 µS/cm |
| 3 Sep 2024, 13:26 | 361 | 361 µS/cm |
| 8 Aug 2024, 10:25 | 307 | 307 µS/cm |
| 3 Jul 2024, 11:11 | 256 | 256 µS/cm |
| 14 Jun 2024, 11:32 | 218 | 218 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 | 10 | Jun 2024 – Mar 2025 | 98.6% 12 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 10 | Jun 2024 – Mar 2025 | 12.5 mg/l 12 Mar 2025 |
| Temperature of Water 0076 | River water | 10 | Jun 2024 – Mar 2025 | 5.1 °C 12 Mar 2025 |
| pH 0061 | River water | 10 | Jun 2024 – Mar 2025 | 8.22 12 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 10 | Jun 2024 – Mar 2025 | below 0.03 mg/l 12 Mar 2025 |
| Nitrate as N 0117 | River water | 10 | Jun 2024 – Mar 2025 | 2.1 mg/l 12 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 10 | Jun 2024 – Mar 2025 | 0.024 mg/l 12 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 10 | Jun 2024 – Mar 2025 | 202 µS/cm 12 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 10 | Jun 2024 – Mar 2025 | 40 mg/l 12 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 10 | Jun 2024 – Mar 2025 | below 0.00038 mg/l 12 Mar 2025 |
| Nitrite as N 0118 | River water | 10 | Jun 2024 – Mar 2025 | below 0.004 mg/l 12 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 10 | Jun 2024 – Mar 2025 | 2.1 mg/l 12 Mar 2025 |
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.