River Wensum Whitefriars Bridge
EA name: R.WENSUM WHITEFRIARS BRIDGE
Environment Agency sampling point AN-WEN275 · 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
- 27 Jul 2026, 14:442 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 22 since 4 Jun 2024 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 623425, 309175As published, to the nearest 1 m. Open in a map
- River, by its own name
- Wensum
- River, by the map
- River WensumPlaced on the river its name gives, 2 m from the line. A tidal reach: water runs both ways, so no gauge order is claimed.
- Next gauge downstream
- Not known
- Why it was sampled
- Planned investigation (local monitoring) (22 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
108.4%
Sampled 27 Jul 2026, 2 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Jul 2026, 14:44 | 108.4 | 108.4% |
| 30 Jun 2026, 10:12 | 82.6 | 82.6% |
| 12 Jun 2026, 11:31 | 98.3 | 98.3% |
| 21 Apr 2026, 16:00 | 97.9 | 97.9% |
| 7 Apr 2026, 14:30 | 98.7 | 98.7% |
| 6 Mar 2026, 12:44 | 96.9 | 96.9% |
| 2 Feb 2026, 15:34 | 91.1 | 91.1% |
| 5 Jan 2026, 12:47 | 96.5 | 96.5% |
| 5 Dec 2025, 11:58 | 97.1 | 97.1% |
| 10 Nov 2025, 09:53 | 89 | 89% |
| 2 Oct 2025, 09:43 | 89.8 | 89.8% |
| 3 Apr 2025, 10:23 | 90.7 | 90.7% |
| 3 Mar 2025, 13:39 | 98.3 | 98.3% |
| 7 Feb 2025, 13:10 | 97.8 | 97.8% |
| 7 Jan 2025, 14:06 | 99.3 | 99.3% |
| 2 Dec 2024, 10:55 | 92.8 | 92.8% |
| 12 Nov 2024, 11:51 | 93.3 | 93.3% |
| 3 Oct 2024, 13:33 | 90 | 90% |
| 2 Sep 2024, 09:47 | 89.9 | 89.9% |
| 5 Aug 2024, 10:28 | 88.5 | 88.5% |
| 3 Jul 2024, 14:34 | 95.8 | 95.8% |
| 4 Jun 2024, 12:19 | 92.7 | 92.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.87 mg/l
Sampled 27 Jul 2026, 2 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Jul 2026, 14:44 | 9.87 | 9.87 mg/l |
| 30 Jun 2026, 10:12 | 7.22 | 7.22 mg/l |
| 12 Jun 2026, 11:31 | 9.76 | 9.76 mg/l |
| 21 Apr 2026, 16:00 | 10.3 | 10.3 mg/l |
| 7 Apr 2026, 14:30 | 10.7 | 10.7 mg/l |
| 6 Mar 2026, 12:44 | 11.2 | 11.2 mg/l |
| 2 Feb 2026, 15:34 | 11.1 | 11.1 mg/l |
| 5 Jan 2026, 12:47 | 13.5 | 13.5 mg/l |
| 5 Dec 2025, 11:58 | 12 | 12 mg/l |
| 10 Nov 2025, 09:53 | 9.73 | 9.73 mg/l |
| 2 Oct 2025, 09:43 | 9.52 | 9.52 mg/l |
| 3 Apr 2025, 10:23 | 10 | 10 mg/l |
| 3 Mar 2025, 13:39 | 12.2 | 12.2 mg/l |
| 7 Feb 2025, 13:10 | 12.5 | 12.5 mg/l |
| 7 Jan 2025, 14:06 | 12.5 | 12.5 mg/l |
| 2 Dec 2024, 10:55 | 10.9 | 10.9 mg/l |
| 12 Nov 2024, 11:51 | 10.5 | 10.5 mg/l |
| 3 Oct 2024, 13:33 | 9.52 | 9.52 mg/l |
| 2 Sep 2024, 09:47 | 8.59 | 8.59 mg/l |
| 5 Aug 2024, 10:28 | 8.29 | 8.29 mg/l |
| 3 Jul 2024, 14:34 | 9.35 | 9.35 mg/l |
| 4 Jun 2024, 12:19 | 9.09 | 9.09 mg/l |
Water temperature
code 0076 · °C
19.8 °C
Sampled 27 Jul 2026, 2 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Jul 2026, 14:44 | 19.8 | 19.8 °C |
| 30 Jun 2026, 10:12 | 21.9 | 21.9 °C |
| 12 Jun 2026, 11:31 | 15.6 | 15.6 °C |
| 21 Apr 2026, 16:00 | 12.9 | 12.9 °C |
| 7 Apr 2026, 14:30 | 11.7 | 11.7 °C |
| 6 Mar 2026, 12:44 | 8.8 | 8.8 °C |
| 2 Feb 2026, 15:34 | 6.8 | 6.8 °C |
| 5 Jan 2026, 12:47 | 1.4 | 1.4 °C |
| 5 Dec 2025, 11:58 | 6.3 | 6.3 °C |
| 10 Nov 2025, 09:53 | 11.3 | 11.3 °C |
| 2 Oct 2025, 09:43 | 12.6 | 12.6 °C |
| 3 Apr 2025, 10:23 | 10.9 | 10.9 °C |
| 3 Mar 2025, 13:39 | 6.1 | 6.1 °C |
| 7 Feb 2025, 13:10 | 4.8 | 4.8 °C |
| 7 Jan 2025, 14:06 | 5.6 | 5.6 °C |
| 2 Dec 2024, 10:55 | 8.3 | 8.3 °C |
| 12 Nov 2024, 11:51 | 10.1 | 10.1 °C |
| 3 Oct 2024, 13:33 | 12.7 | 12.7 °C |
| 2 Sep 2024, 09:47 | 17.4 | 17.4 °C |
| 5 Aug 2024, 10:28 | 18.4 | 18.4 °C |
| 3 Jul 2024, 14:34 | 16.4 | 16.4 °C |
| 4 Jun 2024, 12:19 | 16.2 | 16.2 °C |
pH
code 0061
8.05
Sampled 27 Jul 2026, 2 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Jul 2026, 14:44 | 8.05 | 8.05 |
| 30 Jun 2026, 10:12 | 7.79 | 7.79 |
| 12 Jun 2026, 11:31 | 8.1 | 8.1 |
| 21 Apr 2026, 16:00 | 8.13 | 8.13 |
| 7 Apr 2026, 14:30 | 8.09 | 8.09 |
| 6 Mar 2026, 12:44 | 8.03 | 8.03 |
| 2 Feb 2026, 15:34 | 8.17 | 8.17 |
| 5 Jan 2026, 12:47 | 8.19 | 8.19 |
| 5 Dec 2025, 11:58 | 7.9 | 7.9 |
| 10 Nov 2025, 09:53 | 7.87 | 7.87 |
| 2 Oct 2025, 09:43 | 7.88 | 7.88 |
| 3 Apr 2025, 10:23 | 8.33 | 8.33 |
| 3 Mar 2025, 13:39 | 8.16 | 8.16 |
| 7 Feb 2025, 13:10 | 8.2 | 8.2 |
| 7 Jan 2025, 14:06 | 8.13 | 8.13 |
| 2 Dec 2024, 10:55 | 7.94 | 7.94 |
| 12 Nov 2024, 11:51 | 8.15 | 8.15 |
| 3 Oct 2024, 13:33 | 7.89 | 7.89 |
| 2 Sep 2024, 09:47 | 7.99 | 7.99 |
| 5 Aug 2024, 10:28 | 7.91 | 7.91 |
| 3 Jul 2024, 14:34 | 8.1 | 8.1 |
| 4 Jun 2024, 12:19 | 7.98 | 7.98 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 6 Mar 2026, 7 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 12:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 15:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jan 2026, 12:47 | 0.062 | 0.062 mg/l |
| 5 Dec 2025, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Nov 2025, 09:53 | 0.032 | 0.032 mg/l |
| 2 Oct 2025, 09:43 | 0.063 | 0.063 mg/l |
| 3 Mar 2025, 13:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Feb 2025, 13:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2025, 14:06 | 0.039 | 0.039 mg/l |
| 2 Dec 2024, 10:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Nov 2024, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2024, 13:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2024, 09:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Aug 2024, 10:28 | 0.039 | 0.039 mg/l |
| 3 Jul 2024, 14:34 | 0.048 | 0.048 mg/l |
| 4 Jun 2024, 12:19 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.49 mg/l
Sampled 6 Mar 2026, 7 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 12:44 | 6.49 | 6.49 mg/l |
| 2 Feb 2026, 15:34 | 7.18 | 7.18 mg/l |
| 5 Jan 2026, 12:47 | 7.57 | 7.57 mg/l |
| 5 Dec 2025, 11:58 | 6.87 | 6.87 mg/l |
| 10 Nov 2025, 09:53 | 5.38 | 5.38 mg/l |
| 2 Oct 2025, 09:43 | 6.18 | 6.18 mg/l |
| 3 Mar 2025, 13:39 | 6.69 | 6.69 mg/l |
| 7 Feb 2025, 13:10 | 7.68 | 7.68 mg/l |
| 7 Jan 2025, 14:06 | 6.67 | 6.67 mg/l |
| 12 Nov 2024, 11:51 | 6.39 | 6.39 mg/l |
| 3 Oct 2024, 13:33 | 5.19 | 5.19 mg/l |
| 2 Sep 2024, 09:47 | 5.49 | 5.49 mg/l |
| 5 Aug 2024, 10:28 | 5.48 | 5.48 mg/l |
| 3 Jul 2024, 14:34 | 5.48 | 5.48 mg/l |
| 4 Jun 2024, 12:19 | 3.78 | 3.78 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.058 mg/l
Sampled 6 Mar 2026, 7 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 12:44 | 0.058 | 0.058 mg/l |
| 2 Feb 2026, 15:34 | 0.066 | 0.066 mg/l |
| 5 Jan 2026, 12:47 | 0.071 | 0.071 mg/l |
| 5 Dec 2025, 11:58 | 0.087 | 0.087 mg/l |
| 10 Nov 2025, 09:53 | 0.067 | 0.067 mg/l |
| 2 Oct 2025, 09:43 | 0.087 | 0.087 mg/l |
| 3 Mar 2025, 13:39 | 0.04 | 0.04 mg/l |
| 7 Feb 2025, 13:10 | 0.055 | 0.055 mg/l |
| 7 Jan 2025, 14:06 | 0.064 | 0.064 mg/l |
| 2 Dec 2024, 10:55 | 0.058 | 0.058 mg/l |
| 12 Nov 2024, 11:51 | 0.064 | 0.064 mg/l |
| 3 Oct 2024, 13:33 | 0.088 | 0.088 mg/l |
| 2 Sep 2024, 09:47 | 0.06 | 0.06 mg/l |
| 5 Aug 2024, 10:28 | 0.066 | 0.066 mg/l |
| 3 Jul 2024, 14:34 | 0.06 | 0.06 mg/l |
| 4 Jun 2024, 12:19 | 0.042 | 0.042 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
780 µS/cm
Sampled 27 Jul 2026, 2 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Jul 2026, 14:44 | 780 | 780 µS/cm |
| 30 Jun 2026, 10:12 | 763 | 763 µS/cm |
| 12 Jun 2026, 11:31 | 722 | 722 µS/cm |
| 21 Apr 2026, 16:00 | 758 | 758 µS/cm |
| 7 Apr 2026, 14:30 | 763 | 763 µS/cm |
| 6 Mar 2026, 12:44 | 743 | 743 µS/cm |
| 2 Feb 2026, 15:34 | 829 | 829 µS/cm |
| 5 Jan 2026, 12:47 | 815 | 815 µS/cm |
| 5 Dec 2025, 11:58 | 776 | 776 µS/cm |
| 10 Nov 2025, 09:53 | 797 | 797 µS/cm |
| 2 Oct 2025, 09:43 | 801 | 801 µS/cm |
| 3 Apr 2025, 10:23 | 764 | 764 µS/cm |
| 3 Mar 2025, 13:39 | 713 | 713 µS/cm |
| 7 Feb 2025, 13:10 | 759 | 759 µS/cm |
| 7 Jan 2025, 14:06 | 749 | 749 µS/cm |
| 2 Dec 2024, 10:55 | 719 | 719 µS/cm |
| 12 Nov 2024, 11:51 | 816 | 816 µS/cm |
| 3 Oct 2024, 13:33 | 700 | 700 µS/cm |
| 2 Sep 2024, 09:47 | 762 | 762 µS/cm |
| 5 Aug 2024, 10:28 | 755 | 755 µS/cm |
| 3 Jul 2024, 14:34 | 740 | 740 µS/cm |
| 4 Jun 2024, 12:19 | 683 | 683 µS/cm |
Everything measured here
21 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 21 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 22 | Jun 2024 – Jul 2026 | 108.4% 27 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 22 | Jun 2024 – Jul 2026 | 9.87 mg/l 27 Jul 2026 |
| Temperature of Water 0076 | River water | 22 | Jun 2024 – Jul 2026 | 19.8 °C 27 Jul 2026 |
| pH 0061 | River water | 22 | Jun 2024 – Jul 2026 | 8.05 27 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 16 | Jun 2024 – Mar 2026 | below 0.03 mg/l 6 Mar 2026 |
| Nitrate as N 0117 | River water | 15 | Jun 2024 – Mar 2026 | 6.49 mg/l 6 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 16 | Jun 2024 – Mar 2026 | 0.058 mg/l 6 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 22 | Jun 2024 – Jul 2026 | 780 µS/cm 27 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 16 | Jun 2024 – Mar 2026 | 250 mg/l 6 Mar 2026 |
| Alkalinity, Dissolved as CaCO3 7867 | River water | 4 | Apr 2026 – Jul 2026 | 250 mg/l 27 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 16 | Jun 2024 – Mar 2026 | below 0.0005 mg/l 6 Mar 2026 |
| Ammoniacal Nitrogen, Filtered as N 9993 | River water | 4 | Apr 2026 – Jul 2026 | 0.033 mg/l 27 Jul 2026 |
| Chloride, GF/C Filtered 7190 | River water | 4 | Apr 2026 – Jul 2026 | 59 mg/l 27 Jul 2026 |
| Nitrite as N 0118 | River water | 16 | Jun 2024 – Mar 2026 | 0.012 mg/l 6 Mar 2026 |
| Nitrite, Filtered as N 6485 | River water | 4 | Apr 2026 – Jul 2026 | 0.044 mg/l 27 Jul 2026 |
| Nitrogen, Total as N 9686 | River water | 4 | Apr 2026 – Jul 2026 | 4.5 mg/l 27 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 15 | Jun 2024 – Mar 2026 | 6.5 mg/l 6 Mar 2026 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | River water | 4 | Apr 2026 – Jul 2026 | 4.1 mg/l 27 Jul 2026 |
| Orthophosphate, Filtered as P 9856 | River water | 4 | Apr 2026 – Jul 2026 | 0.048 mg/l 27 Jul 2026 |
| Phosphorus, Total as P 0348 | River water | 4 | Apr 2026 – Jul 2026 | 0.063 mg/l 27 Jul 2026 |
| Silicate, Filtered as SiO2 9857 | River water | 4 | Apr 2026 – Jul 2026 | 5.3 mg/l 27 Jul 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.