Gaywood River Sugar Fen Bridge Leziate
EA name: GAYWOOD R.SUGAR FEN BR.LEZIATE
Environment Agency sampling point AN-61M02 · 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
- 17 Sep 2026, 13:0414 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 25 since 2 Apr 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) · results completed 25 Sep 2026
- Where
- National Grid 569500, 320500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Gaywood
- River, by the map
- Gaywood RiverPlaced on the river its name gives, 10 m from the line.
- Next gauge downstream
- King's Lynn On the River Great Ouse · 10 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (25 samples)
Results here were completed a median of 10 days after the sample was taken (8 to 33 days, 12 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
64.7%
Sampled 17 Sep 2026, 14 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 64.7 | 64.7% |
| 3 Aug 2026, 10:11 | 46.3 | 46.3% |
| 6 Jul 2026, 11:36 | 55 | 55% |
| 5 Jun 2026, 09:18 | 61.7 | 61.7% |
| 11 May 2026, 08:19 | 75.3 | 75.3% |
| 1 Apr 2026, 08:49 | 74.9 | 74.9% |
| 13 Mar 2026, 07:57 | 90.7 | 90.7% |
| 4 Feb 2026, 10:45 | 83.6 | 83.6% |
| 2 Jan 2026, 08:51 | 82.1 | 82.1% |
| 4 Dec 2025, 09:19 | 79.1 | 79.1% |
| 4 Nov 2025, 09:26 | 54.6 | 54.6% |
| 1 Oct 2025, 08:14 | 59.6 | 59.6% |
| 2 Apr 2025, 10:58 | 106.2 | 106.2% |
| 5 Mar 2025, 08:38 | 92.1 | 92.1% |
| 5 Feb 2025, 09:46 | 92.8 | 92.8% |
| 2 Jan 2025, 10:51 | 88 | 88% |
| 3 Dec 2024, 09:07 | 85.1 | 85.1% |
| 11 Nov 2024, 10:28 | 86.8 | 86.8% |
| 3 Oct 2024, 12:09 | 85.8 | 85.8% |
| 2 Sep 2024, 13:17 | 84.5 | 84.5% |
| 5 Aug 2024, 08:46 | 82.6 | 82.6% |
| 2 Jul 2024, 08:40 | 89.6 | 89.6% |
| 10 Jun 2024, 09:38 | 92.1 | 92.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.71 mg/l
Sampled 17 Sep 2026, 14 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 6.71 | 6.71 mg/l |
| 3 Aug 2026, 10:11 | 4.51 | 4.51 mg/l |
| 6 Jul 2026, 11:36 | 5.24 | 5.24 mg/l |
| 5 Jun 2026, 09:18 | 6.44 | 6.44 mg/l |
| 11 May 2026, 08:19 | 8.95 | 8.95 mg/l |
| 1 Apr 2026, 08:49 | 8.52 | 8.52 mg/l |
| 13 Mar 2026, 07:57 | 10.6 | 10.6 mg/l |
| 4 Feb 2026, 10:45 | 9.79 | 9.79 mg/l |
| 2 Jan 2026, 08:51 | 10.6 | 10.6 mg/l |
| 4 Dec 2025, 09:19 | 9.35 | 9.35 mg/l |
| 4 Nov 2025, 09:26 | 5.95 | 5.95 mg/l |
| 1 Oct 2025, 08:14 | 6.62 | 6.62 mg/l |
| 2 Apr 2025, 10:58 | 11.8 | 11.8 mg/l |
| 5 Mar 2025, 08:38 | 11.4 | 11.4 mg/l |
| 5 Feb 2025, 09:46 | 11.4 | 11.4 mg/l |
| 2 Jan 2025, 10:51 | 10.5 | 10.5 mg/l |
| 3 Dec 2024, 09:07 | 9.96 | 9.96 mg/l |
| 11 Nov 2024, 10:28 | 9.76 | 9.76 mg/l |
| 3 Oct 2024, 12:09 | 9.33 | 9.33 mg/l |
| 2 Sep 2024, 13:17 | 8.35 | 8.35 mg/l |
| 5 Aug 2024, 08:46 | 8.55 | 8.55 mg/l |
| 2 Jul 2024, 08:40 | 9.57 | 9.57 mg/l |
| 10 Jun 2024, 09:38 | 10.1 | 10.1 mg/l |
Water temperature
code 0076 · °C
13.6 °C
Sampled 17 Sep 2026, 14 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 13.6 | 13.6 °C |
| 3 Aug 2026, 10:11 | 16.5 | 16.5 °C |
| 6 Jul 2026, 11:36 | 17.6 | 17.6 °C |
| 5 Jun 2026, 09:18 | 13.3 | 13.3 °C |
| 11 May 2026, 08:19 | 7.8 | 7.8 °C |
| 1 Apr 2026, 08:49 | 9.6 | 9.6 °C |
| 13 Mar 2026, 07:57 | 8.3 | 8.3 °C |
| 4 Feb 2026, 10:45 | 8.4 | 8.4 °C |
| 2 Jan 2026, 08:51 | 4.6 | 4.6 °C |
| 4 Dec 2025, 09:19 | 8 | 8 °C |
| 4 Nov 2025, 09:26 | 11.4 | 11.4 °C |
| 1 Oct 2025, 08:14 | 10.6 | 10.6 °C |
| 2 Apr 2025, 10:58 | 10.5 | 10.5 °C |
| 5 Mar 2025, 08:38 | 6 | 6 °C |
| 5 Feb 2025, 09:46 | 6.6 | 6.6 °C |
| 2 Jan 2025, 10:51 | 7.6 | 7.6 °C |
| 3 Dec 2024, 09:07 | 8.4 | 8.4 °C |
| 11 Nov 2024, 10:28 | 10.1 | 10.1 °C |
| 3 Oct 2024, 12:09 | 11.5 | 11.5 °C |
| 2 Sep 2024, 13:17 | 15.8 | 15.8 °C |
| 5 Aug 2024, 08:46 | 13.7 | 13.7 °C |
| 2 Jul 2024, 08:40 | 12.3 | 12.3 °C |
| 10 Jun 2024, 09:38 | 11.1 | 11.1 °C |
pH
code 0061
7.15
Sampled 17 Sep 2026, 14 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 7.15 | 7.15 |
| 3 Aug 2026, 10:11 | 7.25 | 7.25 |
| 6 Jul 2026, 11:36 | 7.51 | 7.51 |
| 5 Jun 2026, 09:18 | 7.61 | 7.61 |
| 11 May 2026, 08:19 | 7.87 | 7.87 |
| 1 Apr 2026, 08:49 | 7.42 | 7.42 |
| 13 Mar 2026, 07:57 | 7.81 | 7.81 |
| 4 Feb 2026, 10:45 | 7.65 | 7.65 |
| 2 Jan 2026, 08:51 | 7.8 | 7.8 |
| 4 Dec 2025, 09:19 | 7.6 | 7.6 |
| 4 Nov 2025, 09:26 | 7.05 | 7.05 |
| 1 Oct 2025, 08:14 | 7.18 | 7.18 |
| 2 Apr 2025, 10:58 | 8.14 | 8.14 |
| 5 Mar 2025, 08:38 | 7.89 | 7.89 |
| 5 Feb 2025, 09:46 | 8.12 | 8.12 |
| 2 Jan 2025, 10:51 | 7.67 | 7.67 |
| 3 Dec 2024, 09:07 | 7.73 | 7.73 |
| 11 Nov 2024, 10:28 | 7.84 | 7.84 |
| 3 Oct 2024, 12:09 | 7.79 | 7.79 |
| 2 Sep 2024, 13:17 | 7.69 | 7.69 |
| 5 Aug 2024, 08:46 | 7.92 | 7.92 |
| 2 Jul 2024, 08:40 | 8.18 | 8.18 |
| 10 Jun 2024, 09:38 | 7.77 | 7.77 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.28 mg/l
Sampled 17 Sep 2026, 14 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 0.28 | 0.28 mg/l |
| 3 Aug 2026, 10:11 | 0.034 | 0.034 mg/l |
| 6 Jul 2026, 11:36 | 0.04 | 0.04 mg/l |
| 5 Jun 2026, 09:18 | 0.074 | 0.074 mg/l |
| 11 May 2026, 08:19 | 0.11 | 0.11 mg/l |
| 1 Apr 2026, 08:49 | 0.19 | 0.19 mg/l |
| 13 Mar 2026, 07:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 10:45 | 0.12 | 0.12 mg/l |
| 2 Jan 2026, 08:51 | 0.14 | 0.14 mg/l |
| 4 Dec 2025, 09:19 | 0.048 | 0.048 mg/l |
| 4 Nov 2025, 09:26 | 0.55 | 0.55 mg/l |
| 1 Oct 2025, 08:14 | 0.4 | 0.4 mg/l |
| 5 Mar 2025, 08:38 | 0.069 | 0.069 mg/l |
| 5 Feb 2025, 09:46 | 0.043 | 0.043 mg/l |
| 2 Jan 2025, 10:51 | 0.11 | 0.11 mg/l |
| 3 Dec 2024, 09:07 | 0.073 | 0.073 mg/l |
| 11 Nov 2024, 10:28 | 0.062 | 0.062 mg/l |
| 3 Oct 2024, 12:09 | 0.039 | 0.039 mg/l |
| 2 Sep 2024, 13:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Aug 2024, 08:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2024, 08:40 | 0.041 | 0.041 mg/l |
| 10 Jun 2024, 09:38 | 0.041 | 0.041 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.69 mg/l
Sampled 17 Sep 2026, 14 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 3.69 | 3.69 mg/l |
| 3 Aug 2026, 10:11 | 9.86 | 9.86 mg/l |
| 6 Jul 2026, 11:36 | 13.8 | 13.8 mg/l |
| 5 Jun 2026, 09:18 | 12.9 | 12.9 mg/l |
| 11 May 2026, 08:19 | 13.9 | 13.9 mg/l |
| 1 Apr 2026, 08:49 | 8.15 | 8.15 mg/l |
| 13 Mar 2026, 07:57 | 11.9 | 11.9 mg/l |
| 4 Feb 2026, 10:45 | 11 | 11 mg/l |
| 2 Jan 2026, 08:51 | 12.8 | 12.8 mg/l |
| 4 Dec 2025, 09:19 | 11.9 | 11.9 mg/l |
| 4 Nov 2025, 09:26 | 0.436 | 0.436 mg/l |
| 1 Oct 2025, 08:14 | 4.59 | 4.59 mg/l |
| 5 Mar 2025, 08:38 | 12 | 12 mg/l |
| 5 Feb 2025, 09:46 | 13 | 13 mg/l |
| 2 Jan 2025, 10:51 | 12 | 12 mg/l |
| 3 Dec 2024, 09:07 | 11 | 11 mg/l |
| 11 Nov 2024, 10:28 | 12.9 | 12.9 mg/l |
| 3 Oct 2024, 12:09 | 12 | 12 mg/l |
| 2 Sep 2024, 13:17 | 14 | 14 mg/l |
| 5 Aug 2024, 08:46 | 14 | 14 mg/l |
| 2 Jul 2024, 08:40 | 13 | 13 mg/l |
| 10 Jun 2024, 09:38 | 13 | 13 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.041 mg/l
Sampled 17 Sep 2026, 14 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 0.041 | 0.041 mg/l |
| 3 Aug 2026, 10:11 | 0.36 | 0.36 mg/l |
| 6 Jul 2026, 11:36 | 0.48 | 0.48 mg/l |
| 5 Jun 2026, 09:18 | 0.3 | 0.3 mg/l |
| 11 May 2026, 08:19 | 0.21 | 0.21 mg/l |
| 1 Apr 2026, 08:49 | 0.071 | 0.071 mg/l |
| 13 Mar 2026, 07:57 | 0.14 | 0.14 mg/l |
| 4 Feb 2026, 10:45 | 0.12 | 0.12 mg/l |
| 2 Jan 2026, 08:51 | 0.16 | 0.16 mg/l |
| 4 Dec 2025, 09:19 | 0.19 | 0.19 mg/l |
| 4 Nov 2025, 09:26 | 0.015 | 0.015 mg/l |
| 1 Oct 2025, 08:14 | 0.047 | 0.047 mg/l |
| 5 Mar 2025, 08:38 | 0.12 | 0.12 mg/l |
| 5 Feb 2025, 09:46 | 0.14 | 0.14 mg/l |
| 2 Jan 2025, 10:51 | 0.17 | 0.17 mg/l |
| 11 Nov 2024, 10:28 | 0.15 | 0.15 mg/l |
| 3 Oct 2024, 12:09 | 0.19 | 0.19 mg/l |
| 2 Sep 2024, 13:17 | 0.21 | 0.21 mg/l |
| 5 Aug 2024, 08:46 | 0.19 | 0.19 mg/l |
| 2 Jul 2024, 08:40 | 0.18 | 0.18 mg/l |
| 10 Jun 2024, 09:38 | 0.21 | 0.21 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
647 µS/cm
Sampled 17 Sep 2026, 14 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 13:04 | 647 | 647 µS/cm |
| 3 Aug 2026, 10:11 | 699 | 699 µS/cm |
| 6 Jul 2026, 11:36 | 732 | 732 µS/cm |
| 5 Jun 2026, 09:18 | 743 | 743 µS/cm |
| 11 May 2026, 08:19 | 714 | 714 µS/cm |
| 1 Apr 2026, 08:49 | 688 | 688 µS/cm |
| 13 Mar 2026, 07:57 | 690 | 690 µS/cm |
| 4 Feb 2026, 10:45 | 724 | 724 µS/cm |
| 2 Jan 2026, 08:51 | 722 | 722 µS/cm |
| 4 Dec 2025, 09:19 | 743 | 743 µS/cm |
| 4 Nov 2025, 09:26 | 739 | 739 µS/cm |
| 1 Oct 2025, 08:14 | 664 | 664 µS/cm |
| 2 Apr 2025, 10:58 | 718 | 718 µS/cm |
| 5 Mar 2025, 08:38 | 716 | 716 µS/cm |
| 5 Feb 2025, 09:46 | 705 | 705 µS/cm |
| 2 Jan 2025, 10:51 | 733 | 733 µS/cm |
| 3 Dec 2024, 09:07 | 721 | 721 µS/cm |
| 11 Nov 2024, 10:28 | 716 | 716 µS/cm |
| 3 Oct 2024, 12:09 | 731 | 731 µS/cm |
| 2 Sep 2024, 13:17 | 722 | 722 µS/cm |
| 5 Aug 2024, 08:46 | 721 | 721 µS/cm |
| 2 Jul 2024, 08:40 | 743 | 743 µS/cm |
| 10 Jun 2024, 09:38 | 696 | 696 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Jun 2024 – Sep 2026 | 64.7% 17 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jun 2024 – Sep 2026 | 6.71 mg/l 17 Sep 2026 |
| Temperature of Water 0076 | River water | 23 | Jun 2024 – Sep 2026 | 13.6 °C 17 Sep 2026 |
| pH 0061 | River water | 23 | Jun 2024 – Sep 2026 | 7.15 17 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Jun 2024 – Sep 2026 | 0.28 mg/l 17 Sep 2026 |
| Nitrate as N 0117 | River water | 22 | Jun 2024 – Sep 2026 | 3.69 mg/l 17 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Jun 2024 – Sep 2026 | 0.041 mg/l 17 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jun 2024 – Sep 2026 | 647 µS/cm 17 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Jun 2024 – Sep 2026 | 210 mg/l 17 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Jun 2024 – Sep 2026 | 0.00096 mg/l 17 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – Sep 2026 | below 4 mg/l 17 Sep 2026 |
| Nitrite as N 0118 | River water | 22 | Jun 2024 – Sep 2026 | 0.0084 mg/l 17 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Jun 2024 – Sep 2026 | 3.7 mg/l 17 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 24 | Apr 2024 – Sep 2026 | 11 mg/l 17 Sep 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.