River Glaven Wiveton Bridge
EA name: R.GLAVEN WIVETON BRIDGE
Environment Agency sampling point AN-GLV070 · 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
- 4 Aug 2026, 13:1258 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 30 since 17 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 604400, 342700As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Glaven
- River, by the map
- River GlavenPlaced on the river its name gives, 45 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- Hunworth On the River Glaven · 8.4 km along the river
- Why it was sampled
- Monitoring (national agency policy) (18 samples)
Planned investigation (local monitoring) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
85.3%
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | 85.3 | 85.3% |
| 2 Jul 2026, 12:03 | 97.8 | 97.8% |
| 12 Jun 2026, 13:30 | 95.4 | 95.4% |
| 26 May 2026, 13:42 | 105.6 | 105.6% |
| 9 Apr 2026, 12:00 | 104.2 | 104.2% |
| 5 Mar 2026, 10:55 | 95.8 | 95.8% |
| 3 Feb 2026, 12:29 | 94.2 | 94.2% |
| 8 Jan 2026, 13:25 | 97.2 | 97.2% |
| 5 Dec 2025, 10:46 | 89.7 | 89.7% |
| 4 Nov 2025, 11:12 | 86.3 | 86.3% |
| 10 Oct 2025, 12:43 | 91.2 | 91.2% |
| 25 Apr 2025, 11:08 | 90.2 | 90.2% |
| 31 Mar 2025, 11:30 | 90.7 | 90.7% |
| 20 Feb 2025, 11:28 | 95 | 95% |
| 31 Jan 2025, 11:03 | 94 | 94% |
| 3 Dec 2024, 11:58 | 91.5 | 91.5% |
| 19 Nov 2024, 11:56 | 89.5 | 89.5% |
| 15 Oct 2024, 11:47 | 90 | 90% |
| 20 Sep 2024, 10:37 | 82.4 | 82.4% |
| 19 Aug 2024, 11:40 | 89.3 | 89.3% |
| 22 Jul 2024, 11:51 | 88 | 88% |
| 19 Jun 2024, 11:50 | 96.2 | 96.2% |
| 16 May 2024, 11:08 | 85.4 | 85.4% |
| 22 Apr 2024, 11:22 | 94.3 | 94.3% |
| 22 Mar 2024, 11:33 | 89.3 | 89.3% |
| 20 Feb 2024, 12:01 | 90 | 90% |
| 17 Jan 2024, 13:02 | 87.7 | 87.7% |
| 12 Dec 2023, 09:53 | 77.1 | 77.1% |
| 24 Nov 2023, 13:25 | 82.4 | 82.4% |
| 17 Oct 2023, 11:19 | 79.7 | 79.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.04 mg/l
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | 8.04 | 8.04 mg/l |
| 2 Jul 2026, 12:03 | 9.33 | 9.33 mg/l |
| 12 Jun 2026, 13:30 | 9.57 | 9.57 mg/l |
| 26 May 2026, 13:42 | 9.67 | 9.67 mg/l |
| 9 Apr 2026, 12:00 | 10.8 | 10.8 mg/l |
| 5 Mar 2026, 10:55 | 11.1 | 11.1 mg/l |
| 3 Feb 2026, 12:29 | 11.8 | 11.8 mg/l |
| 8 Jan 2026, 13:25 | 12.6 | 12.6 mg/l |
| 5 Dec 2025, 10:46 | 11.1 | 11.1 mg/l |
| 4 Nov 2025, 11:12 | 9.32 | 9.32 mg/l |
| 10 Oct 2025, 12:43 | 9.65 | 9.65 mg/l |
| 25 Apr 2025, 11:08 | 10 | 10 mg/l |
| 31 Mar 2025, 11:30 | 10.4 | 10.4 mg/l |
| 20 Feb 2025, 11:28 | 11.2 | 11.2 mg/l |
| 31 Jan 2025, 11:03 | 11.8 | 11.8 mg/l |
| 3 Dec 2024, 11:58 | 10.9 | 10.9 mg/l |
| 19 Nov 2024, 11:56 | 10.9 | 10.9 mg/l |
| 15 Oct 2024, 11:47 | 10.2 | 10.2 mg/l |
| 20 Sep 2024, 10:37 | 8.32 | 8.32 mg/l |
| 19 Aug 2024, 11:40 | 8.96 | 8.96 mg/l |
| 22 Jul 2024, 11:51 | 8.68 | 8.68 mg/l |
| 19 Jun 2024, 11:50 | 9.65 | 9.65 mg/l |
| 16 May 2024, 11:08 | 8.96 | 8.96 mg/l |
| 22 Apr 2024, 11:22 | 10.9 | 10.9 mg/l |
| 22 Mar 2024, 11:33 | 9.99 | 9.99 mg/l |
| 20 Feb 2024, 12:01 | 10.5 | 10.5 mg/l |
| 17 Jan 2024, 13:02 | 11.2 | 11.2 mg/l |
| 12 Dec 2023, 09:53 | 9.18 | 9.18 mg/l |
| 24 Nov 2023, 13:25 | 9.79 | 9.79 mg/l |
| 17 Oct 2023, 11:19 | 8.96 | 8.96 mg/l |
Water temperature
code 0076 · °C
18.1 °C
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | 18.1 | 18.1 °C |
| 2 Jul 2026, 12:03 | 17.5 | 17.5 °C |
| 12 Jun 2026, 13:30 | 15.1 | 15.1 °C |
| 26 May 2026, 13:42 | 19.5 | 19.5 °C |
| 9 Apr 2026, 12:00 | 13.6 | 13.6 °C |
| 5 Mar 2026, 10:55 | 8.8 | 8.8 °C |
| 3 Feb 2026, 12:29 | 5.6 | 5.6 °C |
| 8 Jan 2026, 13:25 | 4.3 | 4.3 °C |
| 5 Dec 2025, 10:46 | 6.3 | 6.3 °C |
| 4 Nov 2025, 11:12 | 11.8 | 11.8 °C |
| 10 Oct 2025, 12:43 | 12.7 | 12.7 °C |
| 25 Apr 2025, 11:08 | 10.7 | 10.7 °C |
| 31 Mar 2025, 11:30 | 9.3 | 9.3 °C |
| 20 Feb 2025, 11:28 | 8 | 8 °C |
| 31 Jan 2025, 11:03 | 5.5 | 5.5 °C |
| 3 Dec 2024, 11:58 | 7.8 | 7.8 °C |
| 19 Nov 2024, 11:56 | 6.9 | 6.9 °C |
| 15 Oct 2024, 11:47 | 9.6 | 9.6 °C |
| 20 Sep 2024, 10:37 | 14.8 | 14.8 °C |
| 19 Aug 2024, 11:40 | 15.1 | 15.1 °C |
| 22 Jul 2024, 11:51 | 15.9 | 15.9 °C |
| 19 Jun 2024, 11:50 | 15.1 | 15.1 °C |
| 16 May 2024, 11:08 | 13.1 | 13.1 °C |
| 22 Apr 2024, 11:22 | 9 | 9 °C |
| 22 Mar 2024, 11:33 | 10.3 | 10.3 °C |
| 20 Feb 2024, 12:01 | 8.4 | 8.4 °C |
| 17 Jan 2024, 13:02 | 5 | 5 °C |
| 12 Dec 2023, 09:53 | 7.7 | 7.7 °C |
| 24 Nov 2023, 13:25 | 7.8 | 7.8 °C |
| 17 Oct 2023, 11:19 | 10.1 | 10.1 °C |
pH
code 0061
7.62
Sampled 4 Aug 2026, 58 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | 7.62 | 7.62 |
| 2 Jul 2026, 12:03 | 7.87 | 7.87 |
| 26 May 2026, 13:42 | 8.64 | 8.64 |
| 9 Apr 2026, 12:00 | 7.88 | 7.88 |
| 5 Mar 2026, 10:55 | 8.04 | 8.04 |
| 3 Feb 2026, 12:29 | 8.03 | 8.03 |
| 8 Jan 2026, 13:25 | 7.97 | 7.97 |
| 5 Dec 2025, 10:46 | 7.79 | 7.79 |
| 4 Nov 2025, 11:12 | 7.93 | 7.93 |
| 10 Oct 2025, 12:43 | 7.99 | 7.99 |
| 25 Apr 2025, 11:08 | 7.99 | 7.99 |
| 31 Mar 2025, 11:30 | 7.96 | 7.96 |
| 20 Feb 2025, 11:28 | 8.01 | 8.01 |
| 31 Jan 2025, 11:03 | 8.13 | 8.13 |
| 3 Dec 2024, 11:58 | 7.9 | 7.9 |
| 19 Nov 2024, 11:56 | 7.94 | 7.94 |
| 15 Oct 2024, 11:47 | 7.73 | 7.73 |
| 20 Sep 2024, 10:37 | 7.82 | 7.82 |
| 19 Aug 2024, 11:40 | 7.95 | 7.95 |
| 22 Jul 2024, 11:51 | 8.01 | 8.01 |
| 19 Jun 2024, 11:50 | 7.9 | 7.9 |
| 16 May 2024, 11:08 | 7.83 | 7.83 |
| 22 Apr 2024, 11:22 | 7.97 | 7.97 |
| 22 Mar 2024, 11:33 | 7.83 | 7.83 |
| 20 Feb 2024, 12:01 | 7.93 | 7.93 |
| 17 Jan 2024, 13:02 | 7.83 | 7.83 |
| 12 Dec 2023, 09:53 | 8.03 | 8.03 |
| 24 Nov 2023, 13:25 | 7.9 | 7.9 |
| 17 Oct 2023, 11:19 | 7.71 | 7.71 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2026, 12:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jun 2026, 13:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 May 2026, 13:42 | 0.051 | 0.051 mg/l |
| 9 Apr 2026, 12:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2026, 10:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2026, 12:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2026, 13:25 | 0.06 | 0.06 mg/l |
| 5 Dec 2025, 10:46 | 0.045 | 0.045 mg/l |
| 4 Nov 2025, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Oct 2025, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Apr 2025, 11:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Mar 2025, 11:30 | 0.056 | 0.056 mg/l |
| 20 Feb 2025, 11:28 | 0.036 | 0.036 mg/l |
| 31 Jan 2025, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2024, 11:58 | 0.041 | 0.041 mg/l |
| 19 Nov 2024, 11:56 | 0.13 | 0.13 mg/l |
| 15 Oct 2024, 11:47 | 0.038 | 0.038 mg/l |
| 20 Sep 2024, 10:37 | 0.033 | 0.033 mg/l |
| 19 Aug 2024, 11:40 | 0.036 | 0.036 mg/l |
| 22 Jul 2024, 11:51 | 0.037 | 0.037 mg/l |
| 19 Jun 2024, 11:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 May 2024, 11:08 | 0.051 | 0.051 mg/l |
| 22 Apr 2024, 11:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Mar 2024, 11:33 | 0.031 | 0.031 mg/l |
| 20 Feb 2024, 12:01 | 0.034 | 0.034 mg/l |
| 17 Jan 2024, 13:02 | 0.034 | 0.034 mg/l |
| 12 Dec 2023, 09:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Nov 2023, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Oct 2023, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.77 mg/l
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | 7.77 | 7.77 mg/l |
| 2 Jul 2026, 12:03 | 7.37 | 7.37 mg/l |
| 12 Jun 2026, 13:30 | 5.78 | 5.78 mg/l |
| 26 May 2026, 13:42 | 6.85 | 6.85 mg/l |
| 9 Apr 2026, 12:00 | 6.47 | 6.47 mg/l |
| 5 Mar 2026, 10:55 | 6.38 | 6.38 mg/l |
| 3 Feb 2026, 12:29 | 6.07 | 6.07 mg/l |
| 8 Jan 2026, 13:25 | 5.96 | 5.96 mg/l |
| 5 Dec 2025, 10:46 | 6.45 | 6.45 mg/l |
| 4 Nov 2025, 11:12 | 6.87 | 6.87 mg/l |
| 10 Oct 2025, 12:43 | 7.27 | 7.27 mg/l |
| 25 Apr 2025, 11:08 | 6.88 | 6.88 mg/l |
| 31 Mar 2025, 11:30 | 6.27 | 6.27 mg/l |
| 20 Feb 2025, 11:28 | 6.38 | 6.38 mg/l |
| 31 Jan 2025, 11:03 | 6.18 | 6.18 mg/l |
| 3 Dec 2024, 11:58 | 5.17 | 5.17 mg/l |
| 19 Nov 2024, 11:56 | 5.75 | 5.75 mg/l |
| 15 Oct 2024, 11:47 | 5.88 | 5.88 mg/l |
| 20 Sep 2024, 10:37 | 6.58 | 6.58 mg/l |
| 19 Aug 2024, 11:40 | 6.96 | 6.96 mg/l |
| 22 Jul 2024, 11:51 | 6.17 | 6.17 mg/l |
| 19 Jun 2024, 11:50 | 5.47 | 5.47 mg/l |
| 16 May 2024, 11:08 | 6.17 | 6.17 mg/l |
| 22 Apr 2024, 11:22 | 5.88 | 5.88 mg/l |
| 22 Mar 2024, 11:33 | 5.88 | 5.88 mg/l |
| 20 Feb 2024, 12:01 | 4.48 | 4.48 mg/l |
| 17 Jan 2024, 13:02 | 6.18 | 6.18 mg/l |
| 12 Dec 2023, 09:53 | 5.38 | 5.38 mg/l |
| 24 Nov 2023, 13:25 | 5.48 | 5.48 mg/l |
| 17 Oct 2023, 11:19 | 5.78 | 5.78 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.49 mg/l
Sampled 2 Jul 2026, 3 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 12:03 | 0.49 | 0.49 mg/l |
| 12 Jun 2026, 13:30 | 0.29 | 0.29 mg/l |
| 26 May 2026, 13:42 | 0.33 | 0.33 mg/l |
| 9 Apr 2026, 12:00 | 0.24 | 0.24 mg/l |
| 5 Mar 2026, 10:55 | 0.14 | 0.14 mg/l |
| 3 Feb 2026, 12:29 | 0.12 | 0.12 mg/l |
| 8 Jan 2026, 13:25 | 0.12 | 0.12 mg/l |
| 5 Dec 2025, 10:46 | 0.19 | 0.19 mg/l |
| 4 Nov 2025, 11:12 | 0.31 | 0.31 mg/l |
| 10 Oct 2025, 12:43 | 0.44 | 0.44 mg/l |
| 25 Apr 2025, 11:08 | 0.24 | 0.24 mg/l |
| 31 Mar 2025, 11:30 | 0.15 | 0.15 mg/l |
| 20 Feb 2025, 11:28 | 0.11 | 0.11 mg/l |
| 31 Jan 2025, 11:03 | 0.11 | 0.11 mg/l |
| 3 Dec 2024, 11:58 | 0.1 | 0.1 mg/l |
| 19 Nov 2024, 11:56 | 0.21 | 0.21 mg/l |
| 15 Oct 2024, 11:47 | 0.14 | 0.14 mg/l |
| 20 Sep 2024, 10:37 | 0.29 | 0.29 mg/l |
| 19 Aug 2024, 11:40 | 0.31 | 0.31 mg/l |
| 22 Jul 2024, 11:51 | 0.21 | 0.21 mg/l |
| 19 Jun 2024, 11:50 | 0.13 | 0.13 mg/l |
| 16 May 2024, 11:08 | 0.2 | 0.2 mg/l |
| 22 Apr 2024, 11:22 | 0.1 | 0.1 mg/l |
| 22 Mar 2024, 11:33 | 0.095 | 0.095 mg/l |
| 20 Feb 2024, 12:01 | 0.074 | 0.074 mg/l |
| 17 Jan 2024, 13:02 | 0.093 | 0.093 mg/l |
| 12 Dec 2023, 09:53 | 0.1 | 0.1 mg/l |
| 24 Nov 2023, 13:25 | 0.13 | 0.13 mg/l |
| 17 Oct 2023, 11:19 | 0.19 | 0.19 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
805 µS/cm
Sampled 4 Aug 2026, 58 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 13:12 | 805 | 805 µS/cm |
| 2 Jul 2026, 12:03 | 781 | 781 µS/cm |
| 12 Jun 2026, 13:30 | 830 | 830 µS/cm |
| 26 May 2026, 13:42 | 769 | 769 µS/cm |
| 9 Apr 2026, 12:00 | 771 | 771 µS/cm |
| 5 Mar 2026, 10:55 | 776 | 776 µS/cm |
| 3 Feb 2026, 12:29 | 767 | 767 µS/cm |
| 8 Jan 2026, 13:25 | 794 | 794 µS/cm |
| 5 Dec 2025, 10:46 | 796 | 796 µS/cm |
| 4 Nov 2025, 11:12 | 782 | 782 µS/cm |
| 10 Oct 2025, 12:43 | 1502 | 1502 µS/cm |
| 25 Apr 2025, 11:08 | 757 | 757 µS/cm |
| 31 Mar 2025, 11:30 | 1299 | 1299 µS/cm |
| 20 Feb 2025, 11:28 | 777 | 777 µS/cm |
| 31 Jan 2025, 11:03 | 824 | 824 µS/cm |
| 3 Dec 2024, 11:58 | 749 | 749 µS/cm |
| 19 Nov 2024, 11:56 | 932 | 932 µS/cm |
| 15 Oct 2024, 11:47 | 804 | 804 µS/cm |
| 20 Sep 2024, 10:37 | 1173 | 1173 µS/cm |
| 19 Aug 2024, 11:40 | 1157 | 1157 µS/cm |
| 22 Jul 2024, 11:51 | 772 | 772 µS/cm |
| 19 Jun 2024, 11:50 | 746 | 746 µS/cm |
| 16 May 2024, 11:08 | 765 | 765 µS/cm |
| 22 Apr 2024, 11:22 | 771 | 771 µS/cm |
| 22 Mar 2024, 11:33 | 756 | 756 µS/cm |
| 20 Feb 2024, 12:01 | 682 | 682 µS/cm |
| 17 Jan 2024, 13:02 | 831 | 831 µS/cm |
| 12 Dec 2023, 09:53 | 750 | 750 µS/cm |
| 24 Nov 2023, 13:25 | 835 | 835 µS/cm |
| 17 Oct 2023, 11:19 | 811 | 811 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 | 30 | Oct 2023 – Aug 2026 | 85.3% 4 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – Aug 2026 | 8.04 mg/l 4 Aug 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – Aug 2026 | 18.1 °C 4 Aug 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Aug 2026 | 7.62 4 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Aug 2026 | below 0.03 mg/l 4 Aug 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Aug 2026 | 7.77 mg/l 4 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – Jul 2026 | 0.49 mg/l 2 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – Aug 2026 | 805 µS/cm 4 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Aug 2026 | 230 mg/l 4 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – Aug 2026 | below 0.00042 mg/l 4 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 14 | Feb 2024 – Mar 2025 | 1.6 mg/l 31 Mar 2025 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Aug 2026 | 0.027 mg/l 4 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Aug 2026 | 7.8 mg/l 4 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.