Watton Brook B1077 Road Bridge Swaffham
EA name: WATTON BK.B1077 RD.BR.SWAFFHAM
Environment Agency sampling point AN-48M14 · 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 Mar 2025, 10:2919 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
- 16 since 11 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 590428, 301100As published, to the nearest 1 m. Open in a map
- River, by its own name
- Watton Brook
- River, by the map
- Watton BrookPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Wissey Sluice On the River Wissey · 37 km along the river (the path rests on a repair to the map)
- Why it was sampled
- Planned investigation (local monitoring) (10 samples)
Monitoring (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
100.7%
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 100.7 | 100.7% |
| 4 Feb 2025, 09:27 | 96.7 | 96.7% |
| 3 Jan 2025, 12:54 | 97.8 | 97.8% |
| 3 Dec 2024, 11:28 | 91.1 | 91.1% |
| 6 Nov 2024, 12:36 | 89.8 | 89.8% |
| 18 Oct 2024, 09:55 | 92 | 92% |
| 9 Sep 2024, 12:38 | 77.5 | 77.5% |
| 5 Aug 2024, 11:42 | 101 | 101% |
| 3 Jul 2024, 09:35 | 88.6 | 88.6% |
| 14 Jun 2024, 13:37 | 104.3 | 104.3% |
| 4 Mar 2024, 13:02 | 100 | 100% |
| 7 Feb 2024, 13:23 | 96.6 | 96.6% |
| 3 Jan 2024, 11:13 | 87.1 | 87.1% |
| 4 Dec 2023, 14:42 | 90.3 | 90.3% |
| 9 Nov 2023, 09:54 | 89.4 | 89.4% |
| 11 Oct 2023, 11:11 | 81.1 | 81.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12 mg/l
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 12 | 12 mg/l |
| 4 Feb 2025, 09:27 | 12.4 | 12.4 mg/l |
| 3 Jan 2025, 12:54 | 13.1 | 13.1 mg/l |
| 3 Dec 2024, 11:28 | 10.9 | 10.9 mg/l |
| 6 Nov 2024, 12:36 | 9.9 | 9.9 mg/l |
| 18 Oct 2024, 09:55 | 10.2 | 10.2 mg/l |
| 9 Sep 2024, 12:38 | 7.71 | 7.71 mg/l |
| 5 Aug 2024, 11:42 | 9.72 | 9.72 mg/l |
| 3 Jul 2024, 09:35 | 9.17 | 9.17 mg/l |
| 14 Jun 2024, 13:37 | 10.8 | 10.8 mg/l |
| 4 Mar 2024, 13:02 | 12.2 | 12.2 mg/l |
| 7 Feb 2024, 13:23 | 11.7 | 11.7 mg/l |
| 3 Jan 2024, 11:13 | 10.2 | 10.2 mg/l |
| 4 Dec 2023, 14:42 | 11.1 | 11.1 mg/l |
| 9 Nov 2023, 09:54 | 10.4 | 10.4 mg/l |
| 11 Oct 2023, 11:11 | 8 | 8 mg/l |
Water temperature
code 0076 · °C
7.8 °C
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 7.8 | 7.8 °C |
| 4 Feb 2025, 09:27 | 4.7 | 4.7 °C |
| 3 Jan 2025, 12:54 | 3 | 3 °C |
| 3 Dec 2024, 11:28 | 7.4 | 7.4 °C |
| 6 Nov 2024, 12:36 | 10.9 | 10.9 °C |
| 18 Oct 2024, 09:55 | 10.5 | 10.5 °C |
| 9 Sep 2024, 12:38 | 15.5 | 15.5 °C |
| 5 Aug 2024, 11:42 | 17.1 | 17.1 °C |
| 3 Jul 2024, 09:35 | 13.7 | 13.7 °C |
| 14 Jun 2024, 13:37 | 13.8 | 13.8 °C |
| 4 Mar 2024, 13:02 | 6.9 | 6.9 °C |
| 7 Feb 2024, 13:23 | 7 | 7 °C |
| 3 Jan 2024, 11:13 | 8.2 | 8.2 °C |
| 4 Dec 2023, 14:42 | 6.4 | 6.4 °C |
| 9 Nov 2023, 09:54 | 8.7 | 8.7 °C |
| 11 Oct 2023, 11:11 | 15.9 | 15.9 °C |
pH
code 0061
8.23
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 8.23 | 8.23 |
| 4 Feb 2025, 09:27 | 8.31 | 8.31 |
| 3 Jan 2025, 12:54 | 8.2 | 8.2 |
| 3 Dec 2024, 11:28 | 8.04 | 8.04 |
| 6 Nov 2024, 12:36 | 8.12 | 8.12 |
| 18 Oct 2024, 09:55 | 8.09 | 8.09 |
| 9 Sep 2024, 12:38 | 7.95 | 7.95 |
| 5 Aug 2024, 11:42 | 8.21 | 8.21 |
| 3 Jul 2024, 09:35 | 8.1 | 8.1 |
| 14 Jun 2024, 13:37 | 8.22 | 8.22 |
| 4 Mar 2024, 13:02 | 7.98 | 7.98 |
| 7 Feb 2024, 13:23 | 8.14 | 8.14 |
| 3 Jan 2024, 11:13 | 7.74 | 7.74 |
| 4 Dec 2023, 14:42 | 7.86 | 7.86 |
| 9 Nov 2023, 09:54 | 7.92 | 7.92 |
| 11 Oct 2023, 11:11 | 8.03 | 8.03 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.059 mg/l
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 0.059 | 0.059 mg/l |
| 4 Feb 2025, 09:27 | 0.054 | 0.054 mg/l |
| 3 Jan 2025, 12:54 | 0.092 | 0.092 mg/l |
| 3 Dec 2024, 11:28 | 0.086 | 0.086 mg/l |
| 6 Nov 2024, 12:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2024, 09:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Sep 2024, 12:38 | 0.043 | 0.043 mg/l |
| 5 Aug 2024, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2024, 09:35 | 0.06 | 0.06 mg/l |
| 14 Jun 2024, 13:37 | 0.038 | 0.038 mg/l |
| 4 Mar 2024, 13:02 | 0.068 | 0.068 mg/l |
| 7 Feb 2024, 13:23 | 0.075 | 0.075 mg/l |
| 3 Jan 2024, 11:13 | 0.049 | 0.049 mg/l |
| 4 Dec 2023, 14:42 | 0.035 | 0.035 mg/l |
| 9 Nov 2023, 09:54 | 0.18 | 0.18 mg/l |
| 11 Oct 2023, 11:11 | 0.44 | 0.44 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.87 mg/l
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 6.87 | 6.87 mg/l |
| 4 Feb 2025, 09:27 | 7.27 | 7.27 mg/l |
| 3 Jan 2025, 12:54 | 6.47 | 6.47 mg/l |
| 3 Dec 2024, 11:28 | 8.05 | 8.05 mg/l |
| 6 Nov 2024, 12:36 | 3.08 | 3.08 mg/l |
| 18 Oct 2024, 09:55 | 4.27 | 4.27 mg/l |
| 9 Sep 2024, 12:38 | 2.38 | 2.38 mg/l |
| 5 Aug 2024, 11:42 | 2.27 | 2.27 mg/l |
| 3 Jul 2024, 09:35 | 2.63 | 2.63 mg/l |
| 14 Jun 2024, 13:37 | 3.46 | 3.46 mg/l |
| 4 Mar 2024, 13:02 | 5.68 | 5.68 mg/l |
| 7 Feb 2024, 13:23 | 6.07 | 6.07 mg/l |
| 3 Jan 2024, 11:13 | 6.18 | 6.18 mg/l |
| 4 Dec 2023, 14:42 | 7.28 | 7.28 mg/l |
| 9 Nov 2023, 09:54 | 6.77 | 6.77 mg/l |
| 11 Oct 2023, 11:11 | 2.85 | 2.85 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.069 mg/l
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 0.069 | 0.069 mg/l |
| 4 Feb 2025, 09:27 | 0.063 | 0.063 mg/l |
| 3 Jan 2025, 12:54 | 0.071 | 0.071 mg/l |
| 3 Dec 2024, 11:28 | 0.062 | 0.062 mg/l |
| 6 Nov 2024, 12:36 | 0.18 | 0.18 mg/l |
| 18 Oct 2024, 09:55 | 0.13 | 0.13 mg/l |
| 9 Sep 2024, 12:38 | 0.41 | 0.41 mg/l |
| 5 Aug 2024, 11:42 | 0.17 | 0.17 mg/l |
| 3 Jul 2024, 09:35 | 0.2 | 0.2 mg/l |
| 14 Jun 2024, 13:37 | 0.11 | 0.11 mg/l |
| 4 Mar 2024, 13:02 | 0.069 | 0.069 mg/l |
| 7 Feb 2024, 13:23 | 0.079 | 0.079 mg/l |
| 3 Jan 2024, 11:13 | 0.074 | 0.074 mg/l |
| 4 Dec 2023, 14:42 | 0.069 | 0.069 mg/l |
| 9 Nov 2023, 09:54 | 0.069 | 0.069 mg/l |
| 11 Oct 2023, 11:11 | 0.36 | 0.36 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
801 µS/cm
Sampled 7 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:29 | 801 | 801 µS/cm |
| 4 Feb 2025, 09:27 | 771 | 771 µS/cm |
| 3 Jan 2025, 12:54 | 794 | 794 µS/cm |
| 3 Dec 2024, 11:28 | 768 | 768 µS/cm |
| 6 Nov 2024, 12:36 | 856 | 856 µS/cm |
| 18 Oct 2024, 09:55 | 807 | 807 µS/cm |
| 9 Sep 2024, 12:38 | 772 | 772 µS/cm |
| 5 Aug 2024, 11:42 | 829 | 829 µS/cm |
| 3 Jul 2024, 09:35 | 727 | 727 µS/cm |
| 14 Jun 2024, 13:37 | 810 | 810 µS/cm |
| 4 Mar 2024, 13:02 | 719 | 719 µS/cm |
| 7 Feb 2024, 13:23 | 740 | 740 µS/cm |
| 3 Jan 2024, 11:13 | 583 | 583 µS/cm |
| 4 Dec 2023, 14:42 | 687 | 687 µS/cm |
| 9 Nov 2023, 09:54 | 774 | 774 µS/cm |
| 11 Oct 2023, 11:11 | 992 | 992 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 | 16 | Oct 2023 – Mar 2025 | 100.7% 7 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 16 | Oct 2023 – Mar 2025 | 12 mg/l 7 Mar 2025 |
| Temperature of Water 0076 | River water | 16 | Oct 2023 – Mar 2025 | 7.8 °C 7 Mar 2025 |
| pH 0061 | River water | 16 | Oct 2023 – Mar 2025 | 8.23 7 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 16 | Oct 2023 – Mar 2025 | 0.059 mg/l 7 Mar 2025 |
| Nitrate as N 0117 | River water | 16 | Oct 2023 – Mar 2025 | 6.87 mg/l 7 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 16 | Oct 2023 – Mar 2025 | 0.069 mg/l 7 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 16 | Oct 2023 – Mar 2025 | 801 µS/cm 7 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 16 | Oct 2023 – Mar 2025 | 310 mg/l 7 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 16 | Oct 2023 – Mar 2025 | 0.00092 mg/l 7 Mar 2025 |
| Nitrite as N 0118 | River water | 16 | Oct 2023 – Mar 2025 | 0.032 mg/l 7 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 16 | Oct 2023 – Mar 2025 | 6.9 mg/l 7 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.