River Wensum Taverham Bridge
EA name: R.WENSUM TAVERHAM BRIDGE
Environment Agency sampling point AN-WEN235 · 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 Aug 2026, 08:0535 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 24 since 16 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- Pond / lake / reservoir water Planned investigation (local monitoring)
- Where
- National Grid 616000, 313650As published, to the nearest 10 m. Open in a map
- River, by its own name
- Wensum
- River, by the map
- River WensumPlaced on the river its name gives, 41 m from the line.
- Next gauge downstream
- COSTESSEY MILL SLUICE 3.9 km along the riverCOSTESSEY MILL SLUICE 3.9 km along the riverCostessey Mill On the River Wensum · 3.9 km along the river
- Nearest gauge upstream
- Swanton Morley On the River Wensum · 26 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Planned investigation (local monitoring) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
89.7%
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Also measured in percentage on another sample material (2GZZ): 5 results, kept apart (see the table).
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 89.7 | 89.7% |
| 3 Mar 2025, 09:15 | 96.2 | 96.2% |
| 7 Feb 2025, 09:07 | 96.9 | 96.9% |
| 24 Jan 2025, 12:03 | 97.3 | 97.3% |
| 4 Dec 2024, 08:43 | 100.5 | 100.5% |
| 19 Nov 2024, 09:21 | 98.9 | 98.9% |
| 15 Oct 2024, 08:50 | 90.3 | 90.3% |
| 24 Sep 2024, 09:04 | 81.4 | 81.4% |
| 21 Aug 2024, 08:41 | 83.5 | 83.5% |
| 22 Jul 2024, 08:34 | 77.3 | 77.3% |
| 18 Jun 2024, 09:18 | 91.1 | 91.1% |
| 13 May 2024, 08:36 | 91.4 | 91.4% |
| 15 Apr 2024, 09:04 | 91.2 | 91.2% |
| 19 Mar 2024, 14:09 | 97.2 | 97.2% |
| 22 Feb 2024, 11:37 | 92.8 | 92.8% |
| 15 Jan 2024, 08:55 | 92.6 | 92.6% |
| 4 Dec 2023, 09:02 | 94.5 | 94.5% |
| 21 Nov 2023, 08:59 | 82.6 | 82.6% |
| 16 Oct 2023, 10:03 | 85.5 | 85.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.4 mg/l
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Also measured in milligram per litre on another sample material (2GZZ): 5 results, kept apart (see the table).
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 10.4 | 10.4 mg/l |
| 3 Mar 2025, 09:15 | 12.6 | 12.6 mg/l |
| 7 Feb 2025, 09:07 | 12.6 | 12.6 mg/l |
| 24 Jan 2025, 12:03 | 12 | 12 mg/l |
| 4 Dec 2024, 08:43 | 12.6 | 12.6 mg/l |
| 19 Nov 2024, 09:21 | 12.2 | 12.2 mg/l |
| 15 Oct 2024, 08:50 | 10.7 | 10.7 mg/l |
| 24 Sep 2024, 09:04 | 8.1 | 8.1 mg/l |
| 21 Aug 2024, 08:41 | 8.1 | 8.1 mg/l |
| 22 Jul 2024, 08:34 | 7.07 | 7.07 mg/l |
| 18 Jun 2024, 09:18 | 9.03 | 9.03 mg/l |
| 13 May 2024, 08:36 | 8.85 | 8.85 mg/l |
| 15 Apr 2024, 09:04 | 9.72 | 9.72 mg/l |
| 19 Mar 2024, 14:09 | 10.6 | 10.6 mg/l |
| 22 Feb 2024, 11:37 | 10.8 | 10.8 mg/l |
| 15 Jan 2024, 08:55 | 12.6 | 12.6 mg/l |
| 4 Dec 2023, 09:02 | 12.3 | 12.3 mg/l |
| 21 Nov 2023, 08:59 | 9.4 | 9.4 mg/l |
| 16 Oct 2023, 10:03 | 9.94 | 9.94 mg/l |
Water temperature
code 0076 · °C
9 °C
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Also measured in celsius on another sample material (2GZZ): 5 results, kept apart (see the table).
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 9 | 9 °C |
| 3 Mar 2025, 09:15 | 3.9 | 3.9 °C |
| 7 Feb 2025, 09:07 | 4.2 | 4.2 °C |
| 24 Jan 2025, 12:03 | 6.2 | 6.2 °C |
| 4 Dec 2024, 08:43 | 5.6 | 5.6 °C |
| 19 Nov 2024, 09:21 | 6.2 | 6.2 °C |
| 15 Oct 2024, 08:50 | 8.1 | 8.1 °C |
| 24 Sep 2024, 09:04 | 15.5 | 15.5 °C |
| 21 Aug 2024, 08:41 | 16.7 | 16.7 °C |
| 22 Jul 2024, 08:34 | 19.6 | 19.6 °C |
| 18 Jun 2024, 09:18 | 15.7 | 15.7 °C |
| 13 May 2024, 08:36 | 16.8 | 16.8 °C |
| 15 Apr 2024, 09:04 | 12.4 | 12.4 °C |
| 19 Mar 2024, 14:09 | 11.4 | 11.4 °C |
| 22 Feb 2024, 11:37 | 8.5 | 8.5 °C |
| 15 Jan 2024, 08:55 | 2.6 | 2.6 °C |
| 4 Dec 2023, 09:02 | 4.2 | 4.2 °C |
| 21 Nov 2023, 08:59 | 9.6 | 9.6 °C |
| 16 Oct 2023, 10:03 | 8.7 | 8.7 °C |
pH
code 0061
8.25
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Also measured in ph units on another sample material (2GZZ): 5 results, kept apart (see the table).
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 8.25 | 8.25 |
| 3 Mar 2025, 09:15 | 8.38 | 8.38 |
| 7 Feb 2025, 09:07 | 8.25 | 8.25 |
| 24 Jan 2025, 12:03 | 8.3 | 8.3 |
| 4 Dec 2024, 08:43 | 8.15 | 8.15 |
| 19 Nov 2024, 09:21 | 8.09 | 8.09 |
| 15 Oct 2024, 08:50 | 8.12 | 8.12 |
| 24 Sep 2024, 09:04 | 8.09 | 8.09 |
| 21 Aug 2024, 08:41 | 8.08 | 8.08 |
| 22 Jul 2024, 08:34 | 7.97 | 7.97 |
| 18 Jun 2024, 09:18 | 8.07 | 8.07 |
| 13 May 2024, 08:36 | 8.16 | 8.16 |
| 15 Apr 2024, 09:04 | 8.09 | 8.09 |
| 19 Mar 2024, 14:09 | 8.19 | 8.19 |
| 22 Feb 2024, 11:37 | 8.09 | 8.09 |
| 15 Jan 2024, 08:55 | 8.23 | 8.23 |
| 4 Dec 2023, 09:02 | 8.07 | 8.07 |
| 21 Nov 2023, 08:59 | 7.94 | 7.94 |
| 16 Oct 2023, 10:03 | 7.89 | 7.89 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 09:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Feb 2025, 09:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jan 2025, 12:03 | 0.036 | 0.036 mg/l |
| 4 Dec 2024, 08:43 | 0.036 | 0.036 mg/l |
| 19 Nov 2024, 09:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Oct 2024, 08:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Sep 2024, 09:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2024, 08:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jul 2024, 08:34 | 0.031 | 0.031 mg/l |
| 18 Jun 2024, 09:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2024, 08:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2024, 09:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2024, 14:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Feb 2024, 11:37 | 0.052 | 0.052 mg/l |
| 15 Jan 2024, 08:55 | 0.035 | 0.035 mg/l |
| 4 Dec 2023, 09:02 | 0.043 | 0.043 mg/l |
| 21 Nov 2023, 08:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 10:03 | 0.034 | 0.034 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.49 mg/l
Sampled 2 Apr 2025, 18 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 6.49 | 6.49 mg/l |
| 3 Mar 2025, 09:15 | 6.98 | 6.98 mg/l |
| 7 Feb 2025, 09:07 | 7.48 | 7.48 mg/l |
| 24 Jan 2025, 12:03 | 6.97 | 6.97 mg/l |
| 19 Nov 2024, 09:21 | 6.58 | 6.58 mg/l |
| 15 Oct 2024, 08:50 | 5.99 | 5.99 mg/l |
| 24 Sep 2024, 09:04 | 6.19 | 6.19 mg/l |
| 21 Aug 2024, 08:41 | 5.39 | 5.39 mg/l |
| 22 Jul 2024, 08:34 | 2.88 | 2.88 mg/l |
| 18 Jun 2024, 09:18 | 4.58 | 4.58 mg/l |
| 13 May 2024, 08:36 | 5.48 | 5.48 mg/l |
| 15 Apr 2024, 09:04 | 6.08 | 6.08 mg/l |
| 19 Mar 2024, 14:09 | 6.28 | 6.28 mg/l |
| 22 Feb 2024, 11:37 | 4.19 | 4.19 mg/l |
| 15 Jan 2024, 08:55 | 6.17 | 6.17 mg/l |
| 4 Dec 2023, 09:02 | 5.67 | 5.67 mg/l |
| 21 Nov 2023, 08:59 | 5.87 | 5.87 mg/l |
| 16 Oct 2023, 10:03 | 4.58 | 4.58 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.023 mg/l
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 0.023 | 0.023 mg/l |
| 3 Mar 2025, 09:15 | 0.035 | 0.035 mg/l |
| 7 Feb 2025, 09:07 | 0.045 | 0.045 mg/l |
| 24 Jan 2025, 12:03 | 0.055 | 0.055 mg/l |
| 4 Dec 2024, 08:43 | 0.052 | 0.052 mg/l |
| 19 Nov 2024, 09:21 | 0.056 | 0.056 mg/l |
| 15 Oct 2024, 08:50 | 0.052 | 0.052 mg/l |
| 24 Sep 2024, 09:04 | 0.056 | 0.056 mg/l |
| 21 Aug 2024, 08:41 | 0.053 | 0.053 mg/l |
| 22 Jul 2024, 08:34 | 0.046 | 0.046 mg/l |
| 18 Jun 2024, 09:18 | 0.044 | 0.044 mg/l |
| 13 May 2024, 08:36 | 0.037 | 0.037 mg/l |
| 15 Apr 2024, 09:04 | 0.036 | 0.036 mg/l |
| 19 Mar 2024, 14:09 | 0.037 | 0.037 mg/l |
| 22 Feb 2024, 11:37 | 0.04 | 0.04 mg/l |
| 15 Jan 2024, 08:55 | 0.056 | 0.056 mg/l |
| 4 Dec 2023, 09:02 | 0.056 | 0.056 mg/l |
| 21 Nov 2023, 08:59 | 0.059 | 0.059 mg/l |
| 16 Oct 2023, 10:03 | 0.099 | 0.099 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
732 µS/cm
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Also measured in microsiemens per centimetre on another sample material (2GZZ): 5 results, kept apart (see the table).
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 08:54 | 732 | 732 µS/cm |
| 3 Mar 2025, 09:15 | 687 | 687 µS/cm |
| 7 Feb 2025, 09:07 | 755 | 755 µS/cm |
| 24 Jan 2025, 12:03 | 779 | 779 µS/cm |
| 4 Dec 2024, 08:43 | 728 | 728 µS/cm |
| 19 Nov 2024, 09:21 | 755 | 755 µS/cm |
| 15 Oct 2024, 08:50 | 725 | 725 µS/cm |
| 24 Sep 2024, 09:04 | 736 | 736 µS/cm |
| 21 Aug 2024, 08:41 | 746 | 746 µS/cm |
| 22 Jul 2024, 08:34 | 689 | 689 µS/cm |
| 18 Jun 2024, 09:18 | 733 | 733 µS/cm |
| 13 May 2024, 08:36 | 738 | 738 µS/cm |
| 15 Apr 2024, 09:04 | 722 | 722 µS/cm |
| 19 Mar 2024, 14:09 | 717 | 717 µS/cm |
| 22 Feb 2024, 11:37 | 574 | 574 µS/cm |
| 15 Jan 2024, 08:55 | 703 | 703 µS/cm |
| 4 Dec 2023, 09:02 | 756 | 756 µS/cm |
| 21 Nov 2023, 08:59 | 683 | 683 µS/cm |
| 16 Oct 2023, 10:03 | 679 | 679 µS/cm |
Everything measured here
22 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 27 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 19 | Oct 2023 – Apr 2025 | 89.7% 2 Apr 2025 |
| Oxygen, Dissolved, % Saturation 9901 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 97.4% 27 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Oct 2023 – Apr 2025 | 10.4 mg/l 2 Apr 2025 |
| Oxygen, Dissolved as O2 9924 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 9.31 mg/l 27 Aug 2026 |
| Temperature of Water 0076 | River water | 19 | Oct 2023 – Apr 2025 | 9 °C 2 Apr 2025 |
| Temperature of Water 0076 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 17.4 °C 27 Aug 2026 |
| pH 0061 | River water | 19 | Oct 2023 – Apr 2025 | 8.25 2 Apr 2025 |
| pH 0061 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 8.1 27 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Oct 2023 – Apr 2025 | below 0.03 mg/l 2 Apr 2025 |
| Nitrate as N 0117 | River water | 18 | Oct 2023 – Apr 2025 | 6.49 mg/l 2 Apr 2025 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Oct 2023 – Apr 2025 | 0.023 mg/l 2 Apr 2025 |
| Conductivity at 25 C 0077 | River water | 19 | Oct 2023 – Apr 2025 | 732 µS/cm 2 Apr 2025 |
| Conductivity at 25 C 0077 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 865 µS/cm 27 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Oct 2023 – Apr 2025 | 260 mg/l 2 Apr 2025 |
| Ammonia un-ionised as N 0119 | River water | 19 | Oct 2023 – Apr 2025 | below 0.00051 mg/l 2 Apr 2025 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – Apr 2025 | 1.3 mg/l 2 Apr 2025 |
| Nitrite as N 0118 | River water | 19 | Oct 2023 – Apr 2025 | 0.013 mg/l 2 Apr 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 18 | Oct 2023 – Apr 2025 | 6.5 mg/l 2 Apr 2025 |
| Alkalinity, Dissolved as CaCO3 7867 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 250 mg/l 27 Aug 2026 |
| Ammoniacal Nitrogen, Filtered as N 9993 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | below 0.03 mg/l 27 Aug 2026 |
| Chloride, GF/C Filtered 7190 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 58 mg/l 27 Aug 2026 |
| Nitrite, Filtered as N 6485 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 0.011 mg/l 27 Aug 2026 |
| Nitrogen, Total as N 9686 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 5.6 mg/l 27 Aug 2026 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 5.3 mg/l 27 Aug 2026 |
| Orthophosphate, Filtered as P 9856 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 0.047 mg/l 27 Aug 2026 |
| Phosphorus, Total as P 0348 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 0.056 mg/l 27 Aug 2026 |
| Silicate, Filtered as SiO2 9857 | Pond / lake / reservoir water | 5 | Apr 2026 – Aug 2026 | 8.6 mg/l 27 Aug 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.