Owston Brook upstream of Gaddesby Brook
EA name: OWSTON BROOK U/S GADDESBY BROOK (also listed as “OWSTON BROOK UPSTREAM OF GADDESBY BROOK”)
Environment Agency sampling point MD-47679040 · 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
- 24 Jun 2026, 09:473 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 22 since 22 Jul 2024 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 473650, 309400As published, to the nearest 10 m. Open in a map
- River, by its own name
- Owston Brook
- River, by the map
- Not placedTwo watercourses within reach (0 m and 19 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
88.1%
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 88.1 | 88.1% |
| 18 May 2026, 11:26 | 111.6 | 111.6% |
| 7 May 2026, 10:47 | 104.5 | 104.5% |
| 14 Apr 2026, 08:48 | 101.9 | 101.9% |
| 19 Mar 2026, 10:36 | 106.4 | 106.4% |
| 11 Mar 2026, 10:11 | 101.6 | 101.6% |
| 16 Feb 2026, 10:31 | 96.7 | 96.7% |
| 13 Feb 2026, 09:47 | 98.5 | 98.5% |
| 19 Jan 2026, 13:41 | 98.4 | 98.4% |
| 16 Dec 2025, 15:39 | 94.9 | 94.9% |
| 9 Dec 2025, 10:19 | 97.1 | 97.1% |
| 19 Nov 2025, 12:53 | 96.5 | 96.5% |
| 13 Nov 2025, 10:28 | 93.6 | 93.6% |
| 10 Mar 2025, 11:30 | 108.6 | 108.6% |
| 10 Feb 2025, 12:41 | 102.1 | 102.1% |
| 23 Jan 2025, 12:23 | 104.3 | 104.3% |
| 13 Dec 2024, 11:57 | 99 | 99% |
| 19 Nov 2024, 10:27 | 96 | 96% |
| 22 Oct 2024, 11:19 | 97.3 | 97.3% |
| 23 Sep 2024, 12:35 | 95.4 | 95.4% |
| 21 Aug 2024, 10:55 | 89.8 | 89.8% |
| 22 Jul 2024, 11:16 | 90.4 | 90.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.07 mg/l
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 8.07 | 8.07 mg/l |
| 18 May 2026, 11:26 | 12.4 | 12.4 mg/l |
| 7 May 2026, 10:47 | 11.9 | 11.9 mg/l |
| 14 Apr 2026, 08:48 | 12.5 | 12.5 mg/l |
| 19 Mar 2026, 10:36 | 12.7 | 12.7 mg/l |
| 11 Mar 2026, 10:11 | 11.9 | 11.9 mg/l |
| 16 Feb 2026, 10:31 | 12.1 | 12.1 mg/l |
| 13 Feb 2026, 09:47 | 12.3 | 12.3 mg/l |
| 19 Jan 2026, 13:41 | 12 | 12 mg/l |
| 16 Dec 2025, 15:39 | 11.1 | 11.1 mg/l |
| 9 Dec 2025, 10:19 | 11 | 11 mg/l |
| 19 Nov 2025, 12:53 | 11.9 | 11.9 mg/l |
| 13 Nov 2025, 10:28 | 10.1 | 10.1 mg/l |
| 10 Mar 2025, 11:30 | 13.2 | 13.2 mg/l |
| 10 Feb 2025, 12:41 | 13.1 | 13.1 mg/l |
| 23 Jan 2025, 12:23 | 13.4 | 13.4 mg/l |
| 13 Dec 2024, 11:57 | 11.8 | 11.8 mg/l |
| 19 Nov 2024, 10:27 | 12 | 12 mg/l |
| 22 Oct 2024, 11:19 | 10.7 | 10.7 mg/l |
| 23 Sep 2024, 12:35 | 9.66 | 9.66 mg/l |
| 21 Aug 2024, 10:55 | 9.25 | 9.25 mg/l |
| 22 Jul 2024, 11:16 | 8.9 | 8.9 mg/l |
Water temperature
code 0076 · °C
19.5 °C
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 19.5 | 19.5 °C |
| 18 May 2026, 11:26 | 10.6 | 10.6 °C |
| 7 May 2026, 10:47 | 9.5 | 9.5 °C |
| 14 Apr 2026, 08:48 | 6.6 | 6.6 °C |
| 19 Mar 2026, 10:36 | 7.7 | 7.7 °C |
| 11 Mar 2026, 10:11 | 8.5 | 8.5 °C |
| 16 Feb 2026, 10:31 | 5.8 | 5.8 °C |
| 13 Feb 2026, 09:47 | 5.8 | 5.8 °C |
| 19 Jan 2026, 13:41 | 6.9 | 6.9 °C |
| 16 Dec 2025, 15:39 | 8.5 | 8.5 °C |
| 9 Dec 2025, 10:19 | 9.8 | 9.8 °C |
| 19 Nov 2025, 12:53 | 6.4 | 6.4 °C |
| 13 Nov 2025, 10:28 | 11.8 | 11.8 °C |
| 10 Mar 2025, 11:30 | 6.8 | 6.8 °C |
| 10 Feb 2025, 12:41 | 4.7 | 4.7 °C |
| 23 Jan 2025, 12:23 | 4.6 | 4.6 °C |
| 13 Dec 2024, 11:57 | 7.6 | 7.6 °C |
| 19 Nov 2024, 10:27 | 5.7 | 5.7 °C |
| 22 Oct 2024, 11:19 | 11 | 11 °C |
| 23 Sep 2024, 12:35 | 14.7 | 14.7 °C |
| 21 Aug 2024, 10:55 | 13.9 | 13.9 °C |
| 22 Jul 2024, 11:16 | 16 | 16 °C |
pH
code 0061
8.07
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 8.07 | 8.07 |
| 18 May 2026, 11:26 | 9.14 | 9.14 |
| 7 May 2026, 10:47 | 8.34 | 8.34 |
| 14 Apr 2026, 08:48 | 8.36 | 8.36 |
| 19 Mar 2026, 10:36 | 8.43 | 8.43 |
| 11 Mar 2026, 10:11 | 8.3 | 8.3 |
| 16 Feb 2026, 10:31 | 8.03 | 8.03 |
| 13 Feb 2026, 09:47 | 8.14 | 8.14 |
| 19 Jan 2026, 13:41 | 8.08 | 8.08 |
| 16 Dec 2025, 15:39 | 7.65 | 7.65 |
| 9 Dec 2025, 10:19 | 7.96 | 7.96 |
| 19 Nov 2025, 12:53 | 8.13 | 8.13 |
| 13 Nov 2025, 10:28 | 8.03 | 8.03 |
| 10 Mar 2025, 11:30 | 8.53 | 8.53 |
| 10 Feb 2025, 12:41 | 8.29 | 8.29 |
| 23 Jan 2025, 12:23 | 8.37 | 8.37 |
| 13 Dec 2024, 11:57 | 8.29 | 8.29 |
| 19 Nov 2024, 10:27 | 7.97 | 7.97 |
| 22 Oct 2024, 11:19 | 8.13 | 8.13 |
| 23 Sep 2024, 12:35 | 7.72 | 7.72 |
| 21 Aug 2024, 10:55 | 8.18 | 8.18 |
| 22 Jul 2024, 11:16 | 8.22 | 8.22 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.062 mg/l
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 0.062 | 0.062 mg/l |
| 18 May 2026, 11:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 May 2026, 10:47 | 0.039 | 0.039 mg/l |
| 14 Apr 2026, 08:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2026, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Mar 2026, 10:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Feb 2026, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Feb 2026, 09:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jan 2026, 13:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Dec 2025, 15:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Dec 2025, 10:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Nov 2025, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Nov 2025, 10:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2025, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2025, 12:41 | 0.073 | 0.073 mg/l |
| 23 Jan 2025, 12:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Dec 2024, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Nov 2024, 10:27 | 0.093 | 0.093 mg/l |
| 22 Oct 2024, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Sep 2024, 12:35 | 0.04 | 0.04 mg/l |
| 21 Aug 2024, 10:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jul 2024, 11:16 | 0.055 | 0.055 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.976 mg/l
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 0.976 | 0.976 mg/l |
| 18 May 2026, 11:26 | 2.29 | 2.29 mg/l |
| 7 May 2026, 10:47 | 3.19 | 3.19 mg/l |
| 14 Apr 2026, 08:48 | 3.69 | 3.69 mg/l |
| 19 Mar 2026, 10:36 | 4.1 | 4.1 mg/l |
| 11 Mar 2026, 10:11 | 4.59 | 4.59 mg/l |
| 16 Feb 2026, 10:31 | 3.8 | 3.8 mg/l |
| 13 Feb 2026, 09:47 | 3.4 | 3.4 mg/l |
| 19 Jan 2026, 13:41 | 4.7 | 4.7 mg/l |
| 16 Dec 2025, 15:39 | 4.59 | 4.59 mg/l |
| 9 Dec 2025, 10:19 | 6.29 | 6.29 mg/l |
| 19 Nov 2025, 12:53 | 5.39 | 5.39 mg/l |
| 13 Nov 2025, 10:28 | 5.68 | 5.68 mg/l |
| 10 Mar 2025, 11:30 | 4.39 | 4.39 mg/l |
| 10 Feb 2025, 12:41 | 4.09 | 4.09 mg/l |
| 23 Jan 2025, 12:23 | 4.69 | 4.69 mg/l |
| 13 Dec 2024, 11:57 | 4.29 | 4.29 mg/l |
| 19 Nov 2024, 10:27 | 6.08 | 6.08 mg/l |
| 22 Oct 2024, 11:19 | 3.19 | 3.19 mg/l |
| 23 Sep 2024, 12:35 | 15 | 15 mg/l |
| 21 Aug 2024, 10:55 | 0.646 | 0.646 mg/l |
| 22 Jul 2024, 11:16 | 2.09 | 2.09 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.04 mg/l
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 0.04 | 0.04 mg/l |
| 18 May 2026, 11:26 | 0.014 | 0.014 mg/l |
| 7 May 2026, 10:47 | 0.01 | 0.01 mg/l |
| 14 Apr 2026, 08:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Mar 2026, 10:36 | 0.01 | 0.01 mg/l |
| 11 Mar 2026, 10:11 | 0.039 | 0.039 mg/l |
| 16 Feb 2026, 10:31 | 0.043 | 0.043 mg/l |
| 13 Feb 2026, 09:47 | 0.053 | 0.053 mg/l |
| 19 Jan 2026, 13:41 | 0.041 | 0.041 mg/l |
| 16 Dec 2025, 15:39 | 0.1 | 0.1 mg/l |
| 9 Dec 2025, 10:19 | 0.11 | 0.11 mg/l |
| 19 Nov 2025, 12:53 | 0.024 | 0.024 mg/l |
| 13 Nov 2025, 10:28 | 0.032 | 0.032 mg/l |
| 10 Mar 2025, 11:30 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Feb 2025, 12:41 | 0.041 | 0.041 mg/l |
| 23 Jan 2025, 12:23 | 0.034 | 0.034 mg/l |
| 13 Dec 2024, 11:57 | 0.034 | 0.034 mg/l |
| 19 Nov 2024, 10:27 | 0.14 | 0.14 mg/l |
| 22 Oct 2024, 11:19 | 0.04 | 0.04 mg/l |
| 23 Sep 2024, 12:35 | 0.036 | 0.036 mg/l |
| 21 Aug 2024, 10:55 | 0.045 | 0.045 mg/l |
| 22 Jul 2024, 11:16 | 0.075 | 0.075 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
744 µS/cm
Sampled 24 Jun 2026, 3 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 09:47 | 744 | 744 µS/cm |
| 18 May 2026, 11:26 | 615 | 615 µS/cm |
| 7 May 2026, 10:47 | 680 | 680 µS/cm |
| 14 Apr 2026, 08:48 | 642 | 642 µS/cm |
| 19 Mar 2026, 10:36 | 573 | 573 µS/cm |
| 11 Mar 2026, 10:11 | 566 | 566 µS/cm |
| 16 Feb 2026, 10:31 | 416 | 416 µS/cm |
| 13 Feb 2026, 09:47 | 421 | 421 µS/cm |
| 19 Jan 2026, 13:41 | 462 | 462 µS/cm |
| 16 Dec 2025, 15:39 | 308 | 308 µS/cm |
| 9 Dec 2025, 10:19 | 402 | 402 µS/cm |
| 19 Nov 2025, 12:53 | 542 | 542 µS/cm |
| 13 Nov 2025, 10:28 | 543 | 543 µS/cm |
| 10 Mar 2025, 11:30 | 656 | 656 µS/cm |
| 10 Feb 2025, 12:41 | 597 | 597 µS/cm |
| 23 Jan 2025, 12:23 | 651 | 651 µS/cm |
| 13 Dec 2024, 11:57 | 564 | 564 µS/cm |
| 19 Nov 2024, 10:27 | 422 | 422 µS/cm |
| 22 Oct 2024, 11:19 | 547 | 547 µS/cm |
| 23 Sep 2024, 12:35 | 467 | 467 µS/cm |
| 21 Aug 2024, 10:55 | 692 | 692 µS/cm |
| 22 Jul 2024, 11:16 | 658 | 658 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 | 22 | Jul 2024 – Jun 2026 | 88.1% 24 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 22 | Jul 2024 – Jun 2026 | 8.07 mg/l 24 Jun 2026 |
| Temperature of Water 0076 | River water | 22 | Jul 2024 – Jun 2026 | 19.5 °C 24 Jun 2026 |
| pH 0061 | River water | 22 | Jul 2024 – Jun 2026 | 8.07 24 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Jul 2024 – Jun 2026 | 0.062 mg/l 24 Jun 2026 |
| Nitrate as N 0117 | River water | 22 | Jul 2024 – Jun 2026 | 0.976 mg/l 24 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Jul 2024 – Jun 2026 | 0.04 mg/l 24 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 22 | Jul 2024 – Jun 2026 | 744 µS/cm 24 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Jul 2024 – Jun 2026 | 280 mg/l 24 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Jul 2024 – Jun 2026 | 0.00225 mg/l 24 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jul 2024 – Jun 2026 | 1 mg/l 24 Jun 2026 |
| Nitrite as N 0118 | River water | 22 | Jul 2024 – Jun 2026 | 0.014 mg/l 24 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Jul 2024 – Jun 2026 | 0.99 mg/l 24 Jun 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.