Stone Brook tributary of Ouse Stone Bridge B1043 Road Bridge
EA name: STONE BK.TRIB.OUSE STONE BR.B1043 RD.BR.
Environment Agency sampling point AN-20M07 · 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
- 11 Sep 2026, 11:0720 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 18 since 3 Apr 2025 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 516624, 254603As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Dean DitchPlaced by position alone, on a line whose map name differs from its own, 2 m from the line.
- Next gauge downstream
- Eaton Socon On the River Great Ouse · 5.5 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (12 samples)
Monitoring (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
38.5%
Sampled 11 Sep 2026, 20 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 38.5 | 38.5% |
| 3 Aug 2026, 10:48 | 26.2 | 26.2% |
| 2 Jul 2026, 09:53 | 41.5 | 41.5% |
| 12 Jun 2026, 09:07 | 58.3 | 58.3% |
| 6 May 2026, 10:22 | 79.6 | 79.6% |
| 20 Apr 2026, 09:52 | 87.9 | 87.9% |
| 2 Mar 2026, 09:45 | 76.5 | 76.5% |
| 9 Feb 2026, 14:40 | 77.1 | 77.1% |
| 6 Jan 2026, 09:55 | 74.2 | 74.2% |
| 11 Dec 2025, 12:01 | 71.7 | 71.7% |
| 5 Nov 2025, 10:00 | 43.3 | 43.3% |
| 3 Oct 2025, 10:18 | 45.2 | 45.2% |
| 9 Sep 2025, 09:46 | 25.2 | 25.2% |
| 15 Aug 2025, 15:58 | 69 | 69% |
| 15 Jul 2025, 13:16 | 83.7 | 83.7% |
| 4 Jun 2025, 09:39 | 77.1 | 77.1% |
| 7 May 2025, 09:08 | 95.2 | 95.2% |
| 3 Apr 2025, 09:25 | 84.3 | 84.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
3.77 mg/l
Sampled 11 Sep 2026, 20 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 3.77 | 3.77 mg/l |
| 3 Aug 2026, 10:48 | 2.47 | 2.47 mg/l |
| 2 Jul 2026, 09:53 | 3.89 | 3.89 mg/l |
| 12 Jun 2026, 09:07 | 5.95 | 5.95 mg/l |
| 6 May 2026, 10:22 | 8.46 | 8.46 mg/l |
| 20 Apr 2026, 09:52 | 9.81 | 9.81 mg/l |
| 2 Mar 2026, 09:45 | 8.81 | 8.81 mg/l |
| 9 Feb 2026, 14:40 | 9.21 | 9.21 mg/l |
| 6 Jan 2026, 09:55 | 10.2 | 10.2 mg/l |
| 11 Dec 2025, 12:01 | 8.29 | 8.29 mg/l |
| 5 Nov 2025, 10:00 | 4.57 | 4.57 mg/l |
| 3 Oct 2025, 10:18 | 4.61 | 4.61 mg/l |
| 9 Sep 2025, 09:46 | 2.56 | 2.56 mg/l |
| 15 Aug 2025, 15:58 | 6.1 | 6.1 mg/l |
| 15 Jul 2025, 13:16 | 7.67 | 7.67 mg/l |
| 4 Jun 2025, 09:39 | 7.77 | 7.77 mg/l |
| 7 May 2025, 09:08 | 10.5 | 10.5 mg/l |
| 3 Apr 2025, 09:25 | 9.68 | 9.68 mg/l |
Water temperature
code 0076 · °C
16.3 °C
Sampled 11 Sep 2026, 20 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 16.3 | 16.3 °C |
| 3 Aug 2026, 10:48 | 18 | 18 °C |
| 2 Jul 2026, 09:53 | 18.4 | 18.4 °C |
| 12 Jun 2026, 09:07 | 14.3 | 14.3 °C |
| 6 May 2026, 10:22 | 12.5 | 12.5 °C |
| 20 Apr 2026, 09:52 | 10.4 | 10.4 °C |
| 2 Mar 2026, 09:45 | 9.1 | 9.1 °C |
| 9 Feb 2026, 14:40 | 7.6 | 7.6 °C |
| 6 Jan 2026, 09:55 | 2.2 | 2.2 °C |
| 11 Dec 2025, 12:01 | 8.9 | 8.9 °C |
| 5 Nov 2025, 10:00 | 12.8 | 12.8 °C |
| 3 Oct 2025, 10:18 | 14.4 | 14.4 °C |
| 9 Sep 2025, 09:46 | 14.5 | 14.5 °C |
| 15 Aug 2025, 15:58 | 21.3 | 21.3 °C |
| 15 Jul 2025, 13:16 | 19.5 | 19.5 °C |
| 4 Jun 2025, 09:39 | 14.9 | 14.9 °C |
| 7 May 2025, 09:08 | 10.9 | 10.9 °C |
| 3 Apr 2025, 09:25 | 9.2 | 9.2 °C |
pH
code 0061
7.3
Sampled 11 Sep 2026, 20 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 7.3 | 7.3 |
| 3 Aug 2026, 10:48 | 7.18 | 7.18 |
| 2 Jul 2026, 09:53 | 7.15 | 7.15 |
| 12 Jun 2026, 09:07 | 7.43 | 7.43 |
| 6 May 2026, 10:22 | 7.54 | 7.54 |
| 20 Apr 2026, 09:52 | 7.71 | 7.71 |
| 2 Mar 2026, 09:45 | 7.76 | 7.76 |
| 9 Feb 2026, 14:40 | 7.75 | 7.75 |
| 6 Jan 2026, 09:55 | 7.54 | 7.54 |
| 11 Dec 2025, 12:01 | 7.86 | 7.86 |
| 5 Nov 2025, 10:00 | 7.55 | 7.55 |
| 3 Oct 2025, 10:18 | 7.68 | 7.68 |
| 9 Sep 2025, 09:46 | 7.18 | 7.18 |
| 15 Aug 2025, 15:58 | 7.53 | 7.53 |
| 15 Jul 2025, 13:16 | 7.63 | 7.63 |
| 4 Jun 2025, 09:39 | 7.69 | 7.69 |
| 7 May 2025, 09:08 | 7.88 | 7.88 |
| 3 Apr 2025, 09:25 | 7.8 | 7.8 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.045 mg/l
Sampled 11 Sep 2026, 20 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 0.045 | 0.045 mg/l |
| 3 Aug 2026, 10:48 | 0.05 | 0.05 mg/l |
| 2 Jul 2026, 09:53 | 0.13 | 0.13 mg/l |
| 12 Jun 2026, 09:07 | 0.066 | 0.066 mg/l |
| 6 May 2026, 10:22 | 0.077 | 0.077 mg/l |
| 20 Apr 2026, 09:52 | 0.15 | 0.15 mg/l |
| 2 Mar 2026, 09:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 14:40 | 0.08 | 0.08 mg/l |
| 6 Jan 2026, 09:55 | 1.8 | 1.8 mg/l |
| 11 Dec 2025, 12:01 | 0.062 | 0.062 mg/l |
| 5 Nov 2025, 10:00 | 0.12 | 0.12 mg/l |
| 3 Oct 2025, 10:18 | 2.1 | 2.1 mg/l |
| 9 Sep 2025, 09:46 | 1.6 | 1.6 mg/l |
| 15 Aug 2025, 15:58 | 0.13 | 0.13 mg/l |
| 15 Jul 2025, 13:16 | 0.15 | 0.15 mg/l |
| 4 Jun 2025, 09:39 | 0.23 | 0.23 mg/l |
| 7 May 2025, 09:08 | 0.14 | 0.14 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
15.9 mg/l
Sampled 11 Sep 2026, 20 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 15.9 | 15.9 mg/l |
| 3 Aug 2026, 10:48 | 15.8 | 15.8 mg/l |
| 2 Jul 2026, 09:53 | 24.8 | 24.8 mg/l |
| 12 Jun 2026, 09:07 | 6.26 | 6.26 mg/l |
| 6 May 2026, 10:22 | 17.9 | 17.9 mg/l |
| 20 Apr 2026, 09:52 | 16.8 | 16.8 mg/l |
| 2 Mar 2026, 09:45 | 13 | 13 mg/l |
| 9 Feb 2026, 14:40 | 18 | 18 mg/l |
| 6 Jan 2026, 09:55 | 21.7 | 21.7 mg/l |
| 11 Dec 2025, 12:01 | 37.9 | 37.9 mg/l |
| 5 Nov 2025, 10:00 | 4.96 | 4.96 mg/l |
| 3 Oct 2025, 10:18 | 20.2 | 20.2 mg/l |
| 9 Sep 2025, 09:46 | 11.9 | 11.9 mg/l |
| 15 Aug 2025, 15:58 | 24.6 | 24.6 mg/l |
| 15 Jul 2025, 13:16 | 28.9 | 28.9 mg/l |
| 4 Jun 2025, 09:39 | 7.69 | 7.69 mg/l |
| 7 May 2025, 09:08 | 15.9 | 15.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.51 mg/l
Sampled 11 Sep 2026, 20 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 0.51 | 0.51 mg/l |
| 2 Jul 2026, 09:53 | 0.43 | 0.43 mg/l |
| 12 Jun 2026, 09:07 | 0.15 | 0.15 mg/l |
| 6 May 2026, 10:22 | 0.15 | 0.15 mg/l |
| 20 Apr 2026, 09:52 | 0.12 | 0.12 mg/l |
| 2 Mar 2026, 09:45 | 0.078 | 0.078 mg/l |
| 9 Feb 2026, 14:40 | 0.062 | 0.062 mg/l |
| 6 Jan 2026, 09:55 | 0.17 | 0.17 mg/l |
| 11 Dec 2025, 12:01 | 0.071 | 0.071 mg/l |
| 5 Nov 2025, 10:00 | 0.29 | 0.29 mg/l |
| 3 Oct 2025, 10:18 | 0.36 | 0.36 mg/l |
| 9 Sep 2025, 09:46 | 0.39 | 0.39 mg/l |
| 15 Aug 2025, 15:58 | 0.61 | 0.61 mg/l |
| 15 Jul 2025, 13:16 | 0.59 | 0.59 mg/l |
| 4 Jun 2025, 09:39 | 0.19 | 0.19 mg/l |
| 7 May 2025, 09:08 | 0.13 | 0.13 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
999 µS/cm
Sampled 11 Sep 2026, 20 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:07 | 999 | 999 µS/cm |
| 3 Aug 2026, 10:48 | 1198 | 1198 µS/cm |
| 2 Jul 2026, 09:53 | 1005 | 1005 µS/cm |
| 12 Jun 2026, 09:07 | 820 | 820 µS/cm |
| 6 May 2026, 10:22 | 1014 | 1014 µS/cm |
| 20 Apr 2026, 09:52 | 1029 | 1029 µS/cm |
| 2 Mar 2026, 09:45 | 800 | 800 µS/cm |
| 9 Feb 2026, 14:40 | 695 | 695 µS/cm |
| 6 Jan 2026, 09:55 | 1388 | 1388 µS/cm |
| 11 Dec 2025, 12:01 | 908 | 908 µS/cm |
| 5 Nov 2025, 10:00 | 645 | 645 µS/cm |
| 3 Oct 2025, 10:18 | 1094 | 1094 µS/cm |
| 9 Sep 2025, 09:46 | 899 | 899 µS/cm |
| 15 Aug 2025, 15:58 | 1159 | 1159 µS/cm |
| 15 Jul 2025, 13:16 | 1122 | 1122 µS/cm |
| 4 Jun 2025, 09:39 | 1005 | 1005 µS/cm |
| 7 May 2025, 09:08 | 1007 | 1007 µS/cm |
| 3 Apr 2025, 09:25 | 1001 | 1001 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 | 18 | Apr 2025 – Sep 2026 | 38.5% 11 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 18 | Apr 2025 – Sep 2026 | 3.77 mg/l 11 Sep 2026 |
| Temperature of Water 0076 | River water | 18 | Apr 2025 – Sep 2026 | 16.3 °C 11 Sep 2026 |
| pH 0061 | River water | 18 | Apr 2025 – Sep 2026 | 7.3 11 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 17 | May 2025 – Sep 2026 | 0.045 mg/l 11 Sep 2026 |
| Nitrate as N 0117 | River water | 17 | May 2025 – Sep 2026 | 15.9 mg/l 11 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 16 | May 2025 – Sep 2026 | 0.51 mg/l 11 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 18 | Apr 2025 – Sep 2026 | 999 µS/cm 11 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | May 2025 – Sep 2026 | 150 mg/l 11 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | May 2025 – Sep 2026 | 0.00027 mg/l 11 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 6 | Oct 2025 – Mar 2026 | below 1 mg/l 2 Mar 2026 |
| Nitrite as N 0118 | River water | 17 | May 2025 – Sep 2026 | 0.065 mg/l 11 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 17 | May 2025 – Sep 2026 | 16 mg/l 11 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.