Moretons Leam Eldernell Sluice
EA name: MORETONS LEAM ELDERNELL SLUICE
Environment Agency sampling point AN-MORT050E · 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
- 14 Sep 2026, 12:3417 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 28 since 10 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 531780, 299190As published, to the nearest 10 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Morton's LeamPlaced by position alone, on a line whose map name differs from its own, 1 m from the line.
- Next gauge downstream
- WISBECH TIDAL WITS 19 km along the river
- Nearest gauge upstream
- Little Bridge On the River Nene · 4.6 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (28 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
105.8%
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 105.8 | 105.8% |
| 12 Aug 2026, 14:08 | 170.3 | 170.3% |
| 28 Jul 2026, 11:25 | 94.3 | 94.3% |
| 18 Jun 2026, 10:53 | 94.7 | 94.7% |
| 5 May 2026, 10:36 | 63.5 | 63.5% |
| 16 Apr 2026, 15:21 | 142.8 | 142.8% |
| 12 Mar 2026, 10:52 | 97.1 | 97.1% |
| 5 Feb 2026, 14:29 | 88.2 | 88.2% |
| 14 Jan 2026, 12:22 | 78 | 78% |
| 9 Dec 2025, 10:39 | 79.6 | 79.6% |
| 14 Nov 2025, 10:15 | 81.6 | 81.6% |
| 27 Oct 2025, 12:06 | 96.7 | 96.7% |
| 9 Sep 2025, 11:14 | 74.6 | 74.6% |
| 11 Aug 2025, 12:00 | 87.4 | 87.4% |
| 14 Jul 2025, 13:38 | 87.4 | 87.4% |
| 9 Jun 2025, 11:14 | 114.1 | 114.1% |
| 14 May 2025, 12:12 | 83 | 83% |
| 30 Apr 2025, 10:01 | 123.9 | 123.9% |
| 13 Mar 2025, 12:22 | 99.1 | 99.1% |
| 18 Feb 2025, 11:23 | 85.4 | 85.4% |
| 16 Jan 2025, 12:30 | 83.3 | 83.3% |
| 11 Dec 2024, 09:12 | 87.8 | 87.8% |
| 8 Nov 2024, 09:03 | 12.4 | 12.4% |
| 25 Oct 2024, 13:23 | 25.4 | 25.4% |
| 25 Sep 2024, 09:34 | 49.6 | 49.6% |
| 12 Aug 2024, 10:32 | 61.1 | 61.1% |
| 9 Jul 2024, 12:25 | 99.8 | 99.8% |
| 10 Jun 2024, 13:51 | 101.3 | 101.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.75 mg/l
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 9.75 | 9.75 mg/l |
| 12 Aug 2026, 14:08 | 14.9 | 14.9 mg/l |
| 28 Jul 2026, 11:25 | 8.34 | 8.34 mg/l |
| 18 Jun 2026, 10:53 | 8.76 | 8.76 mg/l |
| 5 May 2026, 10:36 | 6.36 | 6.36 mg/l |
| 16 Apr 2026, 15:21 | 14.6 | 14.6 mg/l |
| 12 Mar 2026, 10:52 | 11.3 | 11.3 mg/l |
| 5 Feb 2026, 14:29 | 11.2 | 11.2 mg/l |
| 14 Jan 2026, 12:22 | 10.2 | 10.2 mg/l |
| 9 Dec 2025, 10:39 | 9.25 | 9.25 mg/l |
| 14 Nov 2025, 10:15 | 8.86 | 8.86 mg/l |
| 27 Oct 2025, 12:06 | 11.2 | 11.2 mg/l |
| 9 Sep 2025, 11:14 | 7.25 | 7.25 mg/l |
| 11 Aug 2025, 12:00 | 7.79 | 7.79 mg/l |
| 14 Jul 2025, 13:38 | 7.52 | 7.52 mg/l |
| 9 Jun 2025, 11:14 | 11.1 | 11.1 mg/l |
| 14 May 2025, 12:12 | 7.65 | 7.65 mg/l |
| 30 Apr 2025, 10:01 | 11.8 | 11.8 mg/l |
| 13 Mar 2025, 12:22 | 11.9 | 11.9 mg/l |
| 18 Feb 2025, 11:23 | 11.5 | 11.5 mg/l |
| 16 Jan 2025, 12:30 | 11 | 11 mg/l |
| 11 Dec 2024, 09:12 | 10.9 | 10.9 mg/l |
| 8 Nov 2024, 09:03 | 1.38 | 1.38 mg/l |
| 25 Oct 2024, 13:23 | 2.74 | 2.74 mg/l |
| 25 Sep 2024, 09:34 | 5.01 | 5.01 mg/l |
| 12 Aug 2024, 10:32 | 5.5 | 5.5 mg/l |
| 9 Jul 2024, 12:25 | 9.31 | 9.31 mg/l |
| 10 Jun 2024, 13:51 | 10.2 | 10.2 mg/l |
Water temperature
code 0076 · °C
19.2 °C
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 19.2 | 19.2 °C |
| 12 Aug 2026, 14:08 | 22 | 22 °C |
| 28 Jul 2026, 11:25 | 21.3 | 21.3 °C |
| 18 Jun 2026, 10:53 | 19 | 19 °C |
| 5 May 2026, 10:36 | 15.2 | 15.2 °C |
| 16 Apr 2026, 15:21 | 14.1 | 14.1 °C |
| 12 Mar 2026, 10:52 | 8.6 | 8.6 °C |
| 5 Feb 2026, 14:29 | 5.3 | 5.3 °C |
| 14 Jan 2026, 12:22 | 3.9 | 3.9 °C |
| 9 Dec 2025, 10:39 | 8.7 | 8.7 °C |
| 14 Nov 2025, 10:15 | 11.6 | 11.6 °C |
| 27 Oct 2025, 12:06 | 8.7 | 8.7 °C |
| 9 Sep 2025, 11:14 | 16.6 | 16.6 °C |
| 11 Aug 2025, 12:00 | 20.9 | 20.9 °C |
| 14 Jul 2025, 13:38 | 22.7 | 22.7 °C |
| 9 Jun 2025, 11:14 | 16.6 | 16.6 °C |
| 14 May 2025, 12:12 | 19.2 | 19.2 °C |
| 30 Apr 2025, 10:01 | 17.4 | 17.4 °C |
| 13 Mar 2025, 12:22 | 7.3 | 7.3 °C |
| 18 Feb 2025, 11:23 | 3 | 3 °C |
| 16 Jan 2025, 12:30 | 3.6 | 3.6 °C |
| 11 Dec 2024, 09:12 | 6.1 | 6.1 °C |
| 8 Nov 2024, 09:03 | 10.5 | 10.5 °C |
| 25 Oct 2024, 13:23 | 11.9 | 11.9 °C |
| 25 Sep 2024, 09:34 | 14.8 | 14.8 °C |
| 12 Aug 2024, 10:32 | 20.4 | 20.4 °C |
| 9 Jul 2024, 12:25 | 18.6 | 18.6 °C |
| 10 Jun 2024, 13:51 | 15 | 15 °C |
pH
code 0061
7.79
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 7.79 | 7.79 |
| 12 Aug 2026, 14:08 | 8.23 | 8.23 |
| 28 Jul 2026, 11:25 | 8.48 | 8.48 |
| 18 Jun 2026, 10:53 | 7.46 | 7.46 |
| 5 May 2026, 10:36 | 7.62 | 7.62 |
| 16 Apr 2026, 15:21 | 8.7 | 8.7 |
| 12 Mar 2026, 10:52 | 8.48 | 8.48 |
| 5 Feb 2026, 14:29 | 8.03 | 8.03 |
| 14 Jan 2026, 12:22 | 7.94 | 7.94 |
| 9 Dec 2025, 10:39 | 7.56 | 7.56 |
| 14 Nov 2025, 10:15 | 7.88 | 7.88 |
| 27 Oct 2025, 12:06 | 8.05 | 8.05 |
| 9 Sep 2025, 11:14 | 7.48 | 7.48 |
| 11 Aug 2025, 12:00 | 7.45 | 7.45 |
| 14 Jul 2025, 13:38 | 7.34 | 7.34 |
| 9 Jun 2025, 11:14 | 7.97 | 7.97 |
| 14 May 2025, 12:12 | 7.63 | 7.63 |
| 30 Apr 2025, 10:01 | 8.02 | 8.02 |
| 13 Mar 2025, 12:22 | 8.25 | 8.25 |
| 18 Feb 2025, 11:23 | 7.93 | 7.93 |
| 16 Jan 2025, 12:30 | 7.66 | 7.66 |
| 11 Dec 2024, 09:12 | 8.02 | 8.02 |
| 8 Nov 2024, 09:03 | 7.28 | 7.28 |
| 25 Oct 2024, 13:23 | 7.24 | 7.24 |
| 25 Sep 2024, 09:34 | 7.62 | 7.62 |
| 12 Aug 2024, 10:32 | 7.35 | 7.35 |
| 9 Jul 2024, 12:25 | 7.64 | 7.64 |
| 10 Jun 2024, 13:51 | 8.33 | 8.33 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2026, 14:08 | 0.037 | 0.037 mg/l |
| 28 Jul 2026, 11:25 | 0.075 | 0.075 mg/l |
| 18 Jun 2026, 10:53 | 0.032 | 0.032 mg/l |
| 5 May 2026, 10:36 | 0.23 | 0.23 mg/l |
| 16 Apr 2026, 15:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2026, 10:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2026, 14:29 | 0.032 | 0.032 mg/l |
| 14 Jan 2026, 12:22 | 0.18 | 0.18 mg/l |
| 9 Dec 2025, 10:39 | 0.095 | 0.095 mg/l |
| 14 Nov 2025, 10:15 | 0.055 | 0.055 mg/l |
| 27 Oct 2025, 12:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Sep 2025, 11:14 | 0.038 | 0.038 mg/l |
| 11 Aug 2025, 12:00 | 0.037 | 0.037 mg/l |
| 14 Jul 2025, 13:38 | 0.045 | 0.045 mg/l |
| 9 Jun 2025, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 May 2025, 12:12 | 0.11 | 0.11 mg/l |
| 30 Apr 2025, 10:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2025, 12:22 | 0.034 | 0.034 mg/l |
| 18 Feb 2025, 11:23 | 0.17 | 0.17 mg/l |
| 16 Jan 2025, 12:30 | 0.045 | 0.045 mg/l |
| 11 Dec 2024, 09:12 | 0.2 | 0.2 mg/l |
| 8 Nov 2024, 09:03 | 0.54 | 0.54 mg/l |
| 25 Oct 2024, 13:23 | 0.14 | 0.14 mg/l |
| 25 Sep 2024, 09:34 | 0.11 | 0.11 mg/l |
| 12 Aug 2024, 10:32 | 0.1 | 0.1 mg/l |
| 9 Jul 2024, 12:25 | 0.034 | 0.034 mg/l |
| 10 Jun 2024, 13:51 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.14 mg/l
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 4.14 | 4.14 mg/l |
| 12 Aug 2026, 14:08 | 1.77 | 1.77 mg/l |
| 28 Jul 2026, 11:25 | 2.16 | 2.16 mg/l |
| 18 Jun 2026, 10:53 | 2.45 | 2.45 mg/l |
| 5 May 2026, 10:36 | 0.187 | 0.187 mg/l |
| 16 Apr 2026, 15:21 | 0.635 | 0.635 mg/l |
| 12 Mar 2026, 10:52 | 3.97 | 3.97 mg/l |
| 5 Feb 2026, 14:29 | 6.96 | 6.96 mg/l |
| 14 Jan 2026, 12:22 | 6.55 | 6.55 mg/l |
| 9 Dec 2025, 10:39 | 3.83 | 3.83 mg/l |
| 14 Nov 2025, 10:15 | 7.63 | 7.63 mg/l |
| 27 Oct 2025, 12:06 | 8.14 | 8.14 mg/l |
| 9 Sep 2025, 11:14 | 4.16 | 4.16 mg/l |
| 11 Aug 2025, 12:00 | 3.56 | 3.56 mg/l |
| 14 Jul 2025, 13:38 | 2.16 | 2.16 mg/l |
| 9 Jun 2025, 11:14 | 4.44 | 4.44 mg/l |
| 14 May 2025, 12:12 | 1.94 | 1.94 mg/l |
| 30 Apr 2025, 10:01 | 4.16 | 4.16 mg/l |
| 13 Mar 2025, 12:22 | 0.75 | 0.75 mg/l |
| 18 Feb 2025, 11:23 | 3.88 | 3.88 mg/l |
| 16 Jan 2025, 12:30 | 6.07 | 6.07 mg/l |
| 11 Dec 2024, 09:12 | 4.78 | 4.78 mg/l |
| 8 Nov 2024, 09:03 | <0.196 | below 0.196 mg/l (not detected above this) |
| 25 Oct 2024, 13:23 | 0.195 | 0.195 mg/l |
| 25 Sep 2024, 09:34 | 6.47 | 6.47 mg/l |
| 12 Aug 2024, 10:32 | 1.3 | 1.3 mg/l |
| 9 Jul 2024, 12:25 | 2.59 | 2.59 mg/l |
| 10 Jun 2024, 13:51 | <0.196 | below 0.196 mg/l (not detected above this) |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.079 mg/l
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 0.079 | 0.079 mg/l |
| 12 Aug 2026, 14:08 | 0.015 | 0.015 mg/l |
| 28 Jul 2026, 11:25 | 0.06 | 0.06 mg/l |
| 18 Jun 2026, 10:53 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 May 2026, 10:36 | 0.084 | 0.084 mg/l |
| 16 Apr 2026, 15:21 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Mar 2026, 10:52 | 0.01 | 0.01 mg/l |
| 5 Feb 2026, 14:29 | 0.048 | 0.048 mg/l |
| 14 Jan 2026, 12:22 | 0.032 | 0.032 mg/l |
| 9 Dec 2025, 10:39 | 0.043 | 0.043 mg/l |
| 14 Nov 2025, 10:15 | 0.13 | 0.13 mg/l |
| 27 Oct 2025, 12:06 | 0.11 | 0.11 mg/l |
| 9 Sep 2025, 11:14 | 0.067 | 0.067 mg/l |
| 11 Aug 2025, 12:00 | 0.043 | 0.043 mg/l |
| 14 Jul 2025, 13:38 | 0.056 | 0.056 mg/l |
| 9 Jun 2025, 11:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 May 2025, 12:12 | 0.02 | 0.02 mg/l |
| 30 Apr 2025, 10:01 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Mar 2025, 12:22 | 0.03 | 0.03 mg/l |
| 18 Feb 2025, 11:23 | 0.032 | 0.032 mg/l |
| 16 Jan 2025, 12:30 | 0.047 | 0.047 mg/l |
| 11 Dec 2024, 09:12 | 0.065 | 0.065 mg/l |
| 8 Nov 2024, 09:03 | 0.43 | 0.43 mg/l |
| 25 Oct 2024, 13:23 | 0.099 | 0.099 mg/l |
| 25 Sep 2024, 09:34 | 0.13 | 0.13 mg/l |
| 12 Aug 2024, 10:32 | 0.15 | 0.15 mg/l |
| 9 Jul 2024, 12:25 | 0.036 | 0.036 mg/l |
| 10 Jun 2024, 13:51 | 0.16 | 0.16 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
957 µS/cm
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:34 | 957 | 957 µS/cm |
| 12 Aug 2026, 14:08 | 915 | 915 µS/cm |
| 28 Jul 2026, 11:25 | 904 | 904 µS/cm |
| 18 Jun 2026, 10:53 | 784 | 784 µS/cm |
| 5 May 2026, 10:36 | 1009 | 1009 µS/cm |
| 16 Apr 2026, 15:21 | 971 | 971 µS/cm |
| 12 Mar 2026, 10:52 | 658 | 658 µS/cm |
| 5 Feb 2026, 14:29 | 699 | 699 µS/cm |
| 14 Jan 2026, 12:22 | 1438 | 1438 µS/cm |
| 9 Dec 2025, 10:39 | 1472 | 1472 µS/cm |
| 14 Nov 2025, 10:15 | 944 | 944 µS/cm |
| 27 Oct 2025, 12:06 | 914 | 914 µS/cm |
| 9 Sep 2025, 11:14 | 877 | 877 µS/cm |
| 11 Aug 2025, 12:00 | 872 | 872 µS/cm |
| 14 Jul 2025, 13:38 | 873 | 873 µS/cm |
| 9 Jun 2025, 11:14 | 841 | 841 µS/cm |
| 14 May 2025, 12:12 | 930 | 930 µS/cm |
| 30 Apr 2025, 10:01 | 841 | 841 µS/cm |
| 13 Mar 2025, 12:22 | 816 | 816 µS/cm |
| 18 Feb 2025, 11:23 | 1139 | 1139 µS/cm |
| 16 Jan 2025, 12:30 | 697 | 697 µS/cm |
| 11 Dec 2024, 09:12 | 611 | 611 µS/cm |
| 8 Nov 2024, 09:03 | 799 | 799 µS/cm |
| 25 Oct 2024, 13:23 | 614 | 614 µS/cm |
| 25 Sep 2024, 09:34 | 880 | 880 µS/cm |
| 12 Aug 2024, 10:32 | 798 | 798 µS/cm |
| 9 Jul 2024, 12:25 | 891 | 891 µS/cm |
| 10 Jun 2024, 13:51 | 969 | 969 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 | 28 | Jun 2024 – Sep 2026 | 105.8% 14 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Jun 2024 – Sep 2026 | 9.75 mg/l 14 Sep 2026 |
| Temperature of Water 0076 | River water | 28 | Jun 2024 – Sep 2026 | 19.2 °C 14 Sep 2026 |
| pH 0061 | River water | 28 | Jun 2024 – Sep 2026 | 7.79 14 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Jun 2024 – Sep 2026 | below 0.03 mg/l 14 Sep 2026 |
| Nitrate as N 0117 | River water | 28 | Jun 2024 – Sep 2026 | 4.14 mg/l 14 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Jun 2024 – Sep 2026 | 0.079 mg/l 14 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Jun 2024 – Sep 2026 | 957 µS/cm 14 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Sep 2026 | 160 mg/l 14 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Jun 2024 – Sep 2026 | below 0.00067 mg/l 14 Sep 2026 |
| Nitrite as N 0118 | River water | 28 | Jun 2024 – Sep 2026 | 0.063 mg/l 14 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Jun 2024 – Sep 2026 | 4.2 mg/l 14 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.