Cottenham Lode Smithy Fen Road Bridge Cottenhm
EA name: COTTENHAM LODE SMITHY FEN RD.BR.COTTENHM
Environment Agency sampling point AN-35M16 · 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
- 2 Sep 2026, 10:3129 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 20 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 545850, 269150As published, to the nearest 10 m. Open in a map
- River, by its own name
- Cottenham Lode
- River, by the map
- Cottenham LodePlaced on the river its name gives, 29 m from the line.
- Next gauge downstream
- Soham Lode On the River Great Ouse · 12 km along the river
- Nearest gauge upstream
- Oakington On the Oakington Brook · 9.3 km along the riverGirton On the Washpit Brook · 10.0 km along the river
- Why it was sampled
- Monitoring (national agency policy) (25 samples)
Planned investigation (local monitoring) (4 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
24.7%
Sampled 6 Jul 2026, 3 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | 24.7 | 24.7% |
| 8 Jun 2026, 14:33 | 90.8 | 90.8% |
| 14 May 2026, 12:26 | 121.3 | 121.3% |
| 20 Apr 2026, 13:20 | 112.1 | 112.1% |
| 5 Mar 2026, 14:01 | 148.3 | 148.3% |
| 10 Feb 2026, 10:14 | 88.2 | 88.2% |
| 7 Jan 2026, 13:07 | 91 | 91% |
| 11 Dec 2025, 11:25 | 77.1 | 77.1% |
| 5 Nov 2025, 13:20 | 91.1 | 91.1% |
| 28 Oct 2025, 09:25 | 110.2 | 110.2% |
| 4 Sep 2025, 11:36 | 49.5 | 49.5% |
| 8 Aug 2025, 08:52 | 130.9 | 130.9% |
| 9 Jul 2025, 10:23 | 72.4 | 72.4% |
| 9 Jun 2025, 11:49 | 117.5 | 117.5% |
| 6 May 2025, 11:51 | 113.1 | 113.1% |
| 9 Apr 2025, 13:07 | 104.2 | 104.2% |
| 13 Mar 2025, 14:21 | 152.8 | 152.8% |
| 11 Feb 2025, 13:38 | 101.2 | 101.2% |
| 23 Jan 2025, 12:35 | 96.6 | 96.6% |
| 5 Dec 2024, 11:29 | 88.4 | 88.4% |
| 18 Nov 2024, 08:25 | 82.3 | 82.3% |
| 15 Oct 2024, 10:33 | 81 | 81% |
| 18 Sep 2024, 10:06 | 62.7 | 62.7% |
| 23 Aug 2024, 14:53 | 142.4 | 142.4% |
| 23 Aug 2024, 12:45 | 52.9 | 52.9% |
| 17 Jul 2024, 09:31 | 61.7 | 61.7% |
| 20 Jun 2024, 10:46 | 59 | 59% |
Dissolved oxygen
as O2 · code 9924 · mg/l
2.29 mg/l
Sampled 6 Jul 2026, 3 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | 2.29 | 2.29 mg/l |
| 8 Jun 2026, 14:33 | 8.95 | 8.95 mg/l |
| 14 May 2026, 12:26 | 13.4 | 13.4 mg/l |
| 20 Apr 2026, 13:20 | 12.2 | 12.2 mg/l |
| 5 Mar 2026, 14:01 | 16.6 | 16.6 mg/l |
| 10 Feb 2026, 10:14 | 10.6 | 10.6 mg/l |
| 7 Jan 2026, 13:07 | 12.8 | 12.8 mg/l |
| 11 Dec 2025, 11:25 | 9.09 | 9.09 mg/l |
| 5 Nov 2025, 13:20 | 9.53 | 9.53 mg/l |
| 28 Oct 2025, 09:25 | 12.7 | 12.7 mg/l |
| 4 Sep 2025, 11:36 | 4.85 | 4.85 mg/l |
| 8 Aug 2025, 08:52 | 12.6 | 12.6 mg/l |
| 9 Jul 2025, 10:23 | 7.05 | 7.05 mg/l |
| 9 Jun 2025, 11:49 | 11.8 | 11.8 mg/l |
| 6 May 2025, 11:51 | 12.2 | 12.2 mg/l |
| 9 Apr 2025, 13:07 | 11.6 | 11.6 mg/l |
| 13 Mar 2025, 14:21 | 18.9 | 18.9 mg/l |
| 11 Feb 2025, 13:38 | 13 | 13 mg/l |
| 23 Jan 2025, 12:35 | 12.5 | 12.5 mg/l |
| 5 Dec 2024, 11:29 | 10.2 | 10.2 mg/l |
| 18 Nov 2024, 08:25 | 10.3 | 10.3 mg/l |
| 15 Oct 2024, 10:33 | 8.96 | 8.96 mg/l |
| 18 Sep 2024, 10:06 | 6.36 | 6.36 mg/l |
| 23 Aug 2024, 14:53 | 13.7 | 13.7 mg/l |
| 23 Aug 2024, 12:45 | 5.19 | 5.19 mg/l |
| 17 Jul 2024, 09:31 | 6.1 | 6.1 mg/l |
| 20 Jun 2024, 10:46 | 5.93 | 5.93 mg/l |
Water temperature
code 0076 · °C
18.9 °C
Sampled 6 Jul 2026, 3 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | 18.9 | 18.9 °C |
| 8 Jun 2026, 14:33 | 15.9 | 15.9 °C |
| 14 May 2026, 12:26 | 10.8 | 10.8 °C |
| 20 Apr 2026, 13:20 | 11.5 | 11.5 °C |
| 5 Mar 2026, 14:01 | 10.2 | 10.2 °C |
| 10 Feb 2026, 10:14 | 7.5 | 7.5 °C |
| 7 Jan 2026, 13:07 | 1.3 | 1.3 °C |
| 11 Dec 2025, 11:25 | 8.1 | 8.1 °C |
| 5 Nov 2025, 13:20 | 13.2 | 13.2 °C |
| 28 Oct 2025, 09:25 | 9.2 | 9.2 °C |
| 4 Sep 2025, 11:36 | 16.2 | 16.2 °C |
| 8 Aug 2025, 08:52 | 16.9 | 16.9 °C |
| 9 Jul 2025, 10:23 | 16.5 | 16.5 °C |
| 9 Jun 2025, 11:49 | 14.9 | 14.9 °C |
| 6 May 2025, 11:51 | 11.9 | 11.9 °C |
| 9 Apr 2025, 13:07 | 10.4 | 10.4 °C |
| 13 Mar 2025, 14:21 | 6.3 | 6.3 °C |
| 11 Feb 2025, 13:38 | 4.8 | 4.8 °C |
| 23 Jan 2025, 12:35 | 4.4 | 4.4 °C |
| 5 Dec 2024, 11:29 | 9 | 9 °C |
| 18 Nov 2024, 08:25 | 5.9 | 5.9 °C |
| 15 Oct 2024, 10:33 | 10.8 | 10.8 °C |
| 18 Sep 2024, 10:06 | 14.6 | 14.6 °C |
| 23 Aug 2024, 14:53 | 17.2 | 17.2 °C |
| 23 Aug 2024, 12:45 | 16.2 | 16.2 °C |
| 17 Jul 2024, 09:31 | 15.8 | 15.8 °C |
| 20 Jun 2024, 10:46 | 15 | 15 °C |
pH
code 0061
7.96
Sampled 14 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:26 | 7.96 | 7.96 |
| 20 Apr 2026, 13:20 | 7.89 | 7.89 |
| 5 Mar 2026, 14:01 | 8.52 | 8.52 |
| 10 Feb 2026, 10:14 | 8.03 | 8.03 |
| 7 Jan 2026, 13:07 | 8 | 8 |
| 11 Dec 2025, 11:25 | 7.75 | 7.75 |
| 5 Nov 2025, 13:20 | 8.04 | 8.04 |
| 28 Oct 2025, 09:25 | 8.41 | 8.41 |
| 4 Sep 2025, 11:36 | 7.74 | 7.74 |
| 8 Aug 2025, 08:52 | 8.22 | 8.22 |
| 9 Jul 2025, 10:23 | 7.68 | 7.68 |
| 9 Jun 2025, 11:49 | 8.15 | 8.15 |
| 6 May 2025, 11:51 | 7.88 | 7.88 |
| 9 Apr 2025, 13:07 | 7.94 | 7.94 |
| 13 Mar 2025, 14:21 | 8.43 | 8.43 |
| 11 Feb 2025, 13:38 | 8.22 | 8.22 |
| 23 Jan 2025, 12:35 | 8.14 | 8.14 |
| 5 Dec 2024, 11:29 | 8.02 | 8.02 |
| 18 Nov 2024, 08:25 | 8.04 | 8.04 |
| 15 Oct 2024, 10:33 | 7.92 | 7.92 |
| 18 Sep 2024, 10:06 | 7.58 | 7.58 |
| 23 Aug 2024, 14:53 | 8.26 | 8.26 |
| 23 Aug 2024, 12:45 | 7.17 | 7.17 |
| 17 Jul 2024, 09:31 | 7.67 | 7.67 |
| 20 Jun 2024, 10:46 | 7.5 | 7.5 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.2 mg/l
Sampled 6 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | 0.2 | 0.2 mg/l |
| 8 Jun 2026, 14:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 May 2026, 12:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Apr 2026, 13:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2026, 14:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2026, 10:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2026, 13:07 | 0.05 | 0.05 mg/l |
| 11 Dec 2025, 11:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Nov 2025, 13:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Oct 2025, 09:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 11:36 | 0.1 | 0.1 mg/l |
| 8 Aug 2025, 08:52 | 0.037 | 0.037 mg/l |
| 9 Jul 2025, 10:23 | 0.15 | 0.15 mg/l |
| 9 Jun 2025, 11:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2025, 13:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2025, 14:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2025, 13:38 | 0.14 | 0.14 mg/l |
| 23 Jan 2025, 12:35 | 0.051 | 0.051 mg/l |
| 5 Dec 2024, 11:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2024, 08:25 | 0.049 | 0.049 mg/l |
| 15 Oct 2024, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Sep 2024, 10:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Aug 2024, 14:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 09:31 | 0.071 | 0.071 mg/l |
| 20 Jun 2024, 10:46 | 0.06 | 0.06 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 6 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | <0.196 | below 0.196 mg/l (not detected above this) |
| 8 Jun 2026, 14:33 | <0.196 | below 0.196 mg/l (not detected above this) |
| 14 May 2026, 12:26 | 1.79 | 1.79 mg/l |
| 20 Apr 2026, 13:20 | 3.49 | 3.49 mg/l |
| 5 Mar 2026, 14:01 | 4.69 | 4.69 mg/l |
| 10 Feb 2026, 10:14 | 12 | 12 mg/l |
| 7 Jan 2026, 13:07 | 6.98 | 6.98 mg/l |
| 11 Dec 2025, 11:25 | 12 | 12 mg/l |
| 5 Nov 2025, 13:20 | 0.326 | 0.326 mg/l |
| 28 Oct 2025, 09:25 | 0.595 | 0.595 mg/l |
| 4 Sep 2025, 11:36 | 0.206 | 0.206 mg/l |
| 8 Aug 2025, 08:52 | <0.196 | below 0.196 mg/l (not detected above this) |
| 9 Jul 2025, 10:23 | 0.392 | 0.392 mg/l |
| 9 Jun 2025, 11:49 | 1.77 | 1.77 mg/l |
| 6 May 2025, 11:51 | 3.09 | 3.09 mg/l |
| 9 Apr 2025, 13:07 | 4.68 | 4.68 mg/l |
| 13 Mar 2025, 14:21 | 6.78 | 6.78 mg/l |
| 11 Feb 2025, 13:38 | 8.65 | 8.65 mg/l |
| 23 Jan 2025, 12:35 | 8.27 | 8.27 mg/l |
| 5 Dec 2024, 11:29 | 8.88 | 8.88 mg/l |
| 18 Nov 2024, 08:25 | 4.88 | 4.88 mg/l |
| 15 Oct 2024, 10:33 | 4.68 | 4.68 mg/l |
| 18 Sep 2024, 10:06 | 1.37 | 1.37 mg/l |
| 23 Aug 2024, 14:53 | 1.18 | 1.18 mg/l |
| 17 Jul 2024, 09:31 | 3.97 | 3.97 mg/l |
| 20 Jun 2024, 10:46 | 2.87 | 2.87 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.51 mg/l
Sampled 6 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | 0.51 | 0.51 mg/l |
| 8 Jun 2026, 14:33 | 0.076 | 0.076 mg/l |
| 14 May 2026, 12:26 | 0.013 | 0.013 mg/l |
| 20 Apr 2026, 13:20 | 0.017 | 0.017 mg/l |
| 5 Mar 2026, 14:01 | 0.018 | 0.018 mg/l |
| 10 Feb 2026, 10:14 | 0.052 | 0.052 mg/l |
| 7 Jan 2026, 13:07 | 0.09 | 0.09 mg/l |
| 11 Dec 2025, 11:25 | 0.079 | 0.079 mg/l |
| 5 Nov 2025, 13:20 | 0.059 | 0.059 mg/l |
| 28 Oct 2025, 09:25 | 0.071 | 0.071 mg/l |
| 4 Sep 2025, 11:36 | 0.18 | 0.18 mg/l |
| 8 Aug 2025, 08:52 | 0.054 | 0.054 mg/l |
| 9 Jul 2025, 10:23 | 0.19 | 0.19 mg/l |
| 9 Jun 2025, 11:49 | 0.012 | 0.012 mg/l |
| 6 May 2025, 11:51 | 0.014 | 0.014 mg/l |
| 9 Apr 2025, 13:07 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Mar 2025, 14:21 | 0.016 | 0.016 mg/l |
| 11 Feb 2025, 13:38 | 0.066 | 0.066 mg/l |
| 23 Jan 2025, 12:35 | 0.073 | 0.073 mg/l |
| 5 Dec 2024, 11:29 | 0.063 | 0.063 mg/l |
| 18 Nov 2024, 08:25 | 0.081 | 0.081 mg/l |
| 15 Oct 2024, 10:33 | 0.064 | 0.064 mg/l |
| 18 Sep 2024, 10:06 | 0.034 | 0.034 mg/l |
| 23 Aug 2024, 14:53 | 0.036 | 0.036 mg/l |
| 17 Jul 2024, 09:31 | 0.11 | 0.11 mg/l |
| 20 Jun 2024, 10:46 | 0.089 | 0.089 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
824 µS/cm
Sampled 6 Jul 2026, 3 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:11 | 824 | 824 µS/cm |
| 8 Jun 2026, 14:33 | 1007 | 1007 µS/cm |
| 14 May 2026, 12:26 | 887 | 887 µS/cm |
| 20 Apr 2026, 13:20 | 911 | 911 µS/cm |
| 5 Mar 2026, 14:01 | 960 | 960 µS/cm |
| 10 Feb 2026, 10:14 | 928 | 928 µS/cm |
| 7 Jan 2026, 13:07 | 1068 | 1068 µS/cm |
| 11 Dec 2025, 11:25 | 913 | 913 µS/cm |
| 5 Nov 2025, 13:20 | 951 | 951 µS/cm |
| 28 Oct 2025, 09:25 | 948 | 948 µS/cm |
| 4 Sep 2025, 11:36 | 391 | 391 µS/cm |
| 8 Aug 2025, 08:52 | 649 | 649 µS/cm |
| 9 Jul 2025, 10:23 | 724 | 724 µS/cm |
| 9 Jun 2025, 11:49 | 877 | 877 µS/cm |
| 6 May 2025, 11:51 | 904 | 904 µS/cm |
| 9 Apr 2025, 13:07 | 942 | 942 µS/cm |
| 13 Mar 2025, 14:21 | 961 | 961 µS/cm |
| 11 Feb 2025, 13:38 | 1075 | 1075 µS/cm |
| 23 Jan 2025, 12:35 | 1025 | 1025 µS/cm |
| 5 Dec 2024, 11:29 | 930 | 930 µS/cm |
| 18 Nov 2024, 08:25 | 949 | 949 µS/cm |
| 15 Oct 2024, 10:33 | 838 | 838 µS/cm |
| 18 Sep 2024, 10:06 | 794 | 794 µS/cm |
| 23 Aug 2024, 14:53 | 773 | 773 µS/cm |
| 23 Aug 2024, 12:45 | 1043 | 1043 µS/cm |
| 17 Jul 2024, 09:31 | 681 | 681 µS/cm |
| 20 Jun 2024, 10:46 | 867 | 867 µS/cm |
Everything measured here
19 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 19 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 27 | Jun 2024 – Jul 2026 | 24.7% 6 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Jun 2024 – Jul 2026 | 2.29 mg/l 6 Jul 2026 |
| Temperature of Water 0076 | River water | 27 | Jun 2024 – Jul 2026 | 18.9 °C 6 Jul 2026 |
| pH 0061 | River water | 25 | Jun 2024 – May 2026 | 7.96 14 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 26 | Jun 2024 – Jul 2026 | 0.2 mg/l 6 Jul 2026 |
| Nitrate as N 0117 | River water | 26 | Jun 2024 – Jul 2026 | below 0.196 mg/l 6 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 26 | Jun 2024 – Jul 2026 | 0.51 mg/l 6 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Jun 2024 – Jul 2026 | 824 µS/cm 6 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 260 mg/l 14 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jun 2024 – May 2026 | below 0.00053 mg/l 14 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Jun 2024 – Jul 2026 | 3.3 mg/l 6 Jul 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 3 | Apr 2026 – Jul 2026 | 41 mg/l 6 Jul 2026 |
| Chloride 0172 | River water | 4 | Apr 2026 – Jul 2026 | 85 mg/l 6 Jul 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 3 | Apr 2026 – Jun 2026 | 3.9 µg/l 8 Jun 2026 |
| Nitrite as N 0118 | River water | 26 | Jun 2024 – Jul 2026 | below 0.004 mg/l 6 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 26 | Jun 2024 – Jul 2026 | below 0.2 mg/l 6 Jul 2026 |
| No flow /No sample 7668 | River water | 2 | Aug 2026 – Sep 2026 | No flow/discharge at sampling point 2 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 4 | Apr 2026 – Jul 2026 | 7.1 mg/l 6 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 4 | Apr 2026 – Jul 2026 | 58 mg/l 6 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.