West Brook A604 Road Bridge Fenstanton
EA name: WEST BK.A604 RD.BR.FENSTANTON
Environment Agency sampling point AN-26M21 · 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, 09:5258 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 24 since 20 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Statutory failures (follow ups at non-designated points)
- Where
- National Grid 531250, 268587As published, to the nearest 1 m. Open in a map
- River, by its own name
- West Brook
- River, by the map
- West BrookPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- Brownshill On the River Great Ouse · 8.7 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Statutory failures (follow ups at non-designated points) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
74.5%
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 74.5 | 74.5% |
| 6 Jul 2026, 09:49 | 70.2 | 70.2% |
| 8 Jun 2026, 17:23 | 76.7 | 76.7% |
| 12 May 2026, 14:00 | 96.8 | 96.8% |
| 27 Apr 2026, 14:50 | 111.3 | 111.3% |
| 2 Apr 2025, 13:41 | 100.6 | 100.6% |
| 3 Mar 2025, 15:20 | 98.1 | 98.1% |
| 10 Feb 2025, 13:00 | 95.8 | 95.8% |
| 20 Jan 2025, 14:51 | 91 | 91% |
| 9 Dec 2024, 14:31 | 88.4 | 88.4% |
| 26 Nov 2024, 11:10 | 86.8 | 86.8% |
| 15 Oct 2024, 08:40 | 79.5 | 79.5% |
| 17 Sep 2024, 13:49 | 85.2 | 85.2% |
| 21 Aug 2024, 10:13 | 74.9 | 74.9% |
| 18 Jul 2024, 10:44 | 84.6 | 84.6% |
| 17 Jun 2024, 14:58 | 78.9 | 78.9% |
| 14 May 2024, 10:29 | 72.9 | 72.9% |
| 16 Apr 2024, 10:05 | 89.8 | 89.8% |
| 18 Mar 2024, 11:44 | 94.5 | 94.5% |
| 22 Feb 2024, 10:16 | 92.2 | 92.2% |
| 16 Jan 2024, 10:36 | 90 | 90% |
| 5 Dec 2023, 13:57 | 89.4 | 89.4% |
| 21 Nov 2023, 09:53 | 84.1 | 84.1% |
| 20 Oct 2023, 09:34 | 78.4 | 78.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.01 mg/l
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 7.01 | 7.01 mg/l |
| 6 Jul 2026, 09:49 | 6.53 | 6.53 mg/l |
| 8 Jun 2026, 17:23 | 7.68 | 7.68 mg/l |
| 12 May 2026, 14:00 | 10.9 | 10.9 mg/l |
| 27 Apr 2026, 14:50 | 11.7 | 11.7 mg/l |
| 2 Apr 2025, 13:41 | 11.3 | 11.3 mg/l |
| 3 Mar 2025, 15:20 | 12.1 | 12.1 mg/l |
| 10 Feb 2025, 13:00 | 12.2 | 12.2 mg/l |
| 20 Jan 2025, 14:51 | 11.6 | 11.6 mg/l |
| 9 Dec 2024, 14:31 | 10.5 | 10.5 mg/l |
| 26 Nov 2024, 11:10 | 10.4 | 10.4 mg/l |
| 15 Oct 2024, 08:40 | 8.81 | 8.81 mg/l |
| 17 Sep 2024, 13:49 | 8.94 | 8.94 mg/l |
| 21 Aug 2024, 10:13 | 7.58 | 7.58 mg/l |
| 18 Jul 2024, 10:44 | 8.26 | 8.26 mg/l |
| 17 Jun 2024, 14:58 | 7.97 | 7.97 mg/l |
| 14 May 2024, 10:29 | 7.35 | 7.35 mg/l |
| 16 Apr 2024, 10:05 | 10.4 | 10.4 mg/l |
| 18 Mar 2024, 11:44 | 10.7 | 10.7 mg/l |
| 22 Feb 2024, 10:16 | 10.8 | 10.8 mg/l |
| 16 Jan 2024, 10:36 | 12 | 12 mg/l |
| 5 Dec 2023, 13:57 | 10.9 | 10.9 mg/l |
| 21 Nov 2023, 09:53 | 9.5 | 9.5 mg/l |
| 20 Oct 2023, 09:34 | 7.99 | 7.99 mg/l |
Water temperature
code 0076 · °C
18.2 °C
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 18.2 | 18.2 °C |
| 6 Jul 2026, 09:49 | 18.7 | 18.7 °C |
| 8 Jun 2026, 17:23 | 15.2 | 15.2 °C |
| 12 May 2026, 14:00 | 10 | 10 °C |
| 27 Apr 2026, 14:50 | 13.1 | 13.1 °C |
| 2 Apr 2025, 13:41 | 10.1 | 10.1 °C |
| 3 Mar 2025, 15:20 | 6.4 | 6.4 °C |
| 10 Feb 2025, 13:00 | 5 | 5 °C |
| 20 Jan 2025, 14:51 | 5 | 5 °C |
| 9 Dec 2024, 14:31 | 7.8 | 7.8 °C |
| 26 Nov 2024, 11:10 | 7.5 | 7.5 °C |
| 15 Oct 2024, 08:40 | 10.7 | 10.7 °C |
| 17 Sep 2024, 13:49 | 13.1 | 13.1 °C |
| 21 Aug 2024, 10:13 | 14.7 | 14.7 °C |
| 18 Jul 2024, 10:44 | 16.4 | 16.4 °C |
| 17 Jun 2024, 14:58 | 14.8 | 14.8 °C |
| 14 May 2024, 10:29 | 14.9 | 14.9 °C |
| 16 Apr 2024, 10:05 | 8.7 | 8.7 °C |
| 18 Mar 2024, 11:44 | 9.9 | 9.9 °C |
| 22 Feb 2024, 10:16 | 8.4 | 8.4 °C |
| 16 Jan 2024, 10:36 | 3.3 | 3.3 °C |
| 5 Dec 2023, 13:57 | 6.7 | 6.7 °C |
| 21 Nov 2023, 09:53 | 9.9 | 9.9 °C |
| 20 Oct 2023, 09:34 | 14.4 | 14.4 °C |
pH
code 0061
7.91
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 7.91 | 7.91 |
| 6 Jul 2026, 09:49 | 7.87 | 7.87 |
| 8 Jun 2026, 17:23 | 7.76 | 7.76 |
| 12 May 2026, 14:00 | 7.78 | 7.78 |
| 27 Apr 2026, 14:50 | 7.88 | 7.88 |
| 2 Apr 2025, 13:41 | 7.91 | 7.91 |
| 3 Mar 2025, 15:20 | 8.18 | 8.18 |
| 10 Feb 2025, 13:00 | 8.17 | 8.17 |
| 20 Jan 2025, 14:51 | 8.04 | 8.04 |
| 9 Dec 2024, 14:31 | 7.94 | 7.94 |
| 26 Nov 2024, 11:10 | 8.03 | 8.03 |
| 15 Oct 2024, 08:40 | 7.78 | 7.78 |
| 17 Sep 2024, 13:49 | 7.83 | 7.83 |
| 21 Aug 2024, 10:13 | 7.88 | 7.88 |
| 18 Jul 2024, 10:44 | 7.95 | 7.95 |
| 17 Jun 2024, 14:58 | 7.87 | 7.87 |
| 14 May 2024, 10:29 | 7.89 | 7.89 |
| 16 Apr 2024, 10:05 | 8.06 | 8.06 |
| 18 Mar 2024, 11:44 | 8.05 | 8.05 |
| 22 Feb 2024, 10:16 | 8.04 | 8.04 |
| 16 Jan 2024, 10:36 | 7.97 | 7.97 |
| 5 Dec 2023, 13:57 | 7.96 | 7.96 |
| 21 Nov 2023, 09:53 | 8.01 | 8.01 |
| 20 Oct 2023, 09:34 | 7.97 | 7.97 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.047 mg/l
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 0.047 | 0.047 mg/l |
| 6 Jul 2026, 09:49 | 0.064 | 0.064 mg/l |
| 8 Jun 2026, 17:23 | 0.036 | 0.036 mg/l |
| 12 May 2026, 14:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Apr 2026, 14:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 13:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 15:20 | 0.054 | 0.054 mg/l |
| 10 Feb 2025, 13:00 | 0.033 | 0.033 mg/l |
| 20 Jan 2025, 14:51 | 0.081 | 0.081 mg/l |
| 9 Dec 2024, 14:31 | 0.035 | 0.035 mg/l |
| 26 Nov 2024, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Oct 2024, 08:40 | 0.12 | 0.12 mg/l |
| 17 Sep 2024, 13:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2024, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2024, 10:44 | 0.03 | 0.03 mg/l |
| 17 Jun 2024, 14:58 | 0.047 | 0.047 mg/l |
| 14 May 2024, 10:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2024, 10:05 | 0.078 | 0.078 mg/l |
| 18 Mar 2024, 11:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Feb 2024, 10:16 | 0.03 | 0.03 mg/l |
| 16 Jan 2024, 10:36 | 0.054 | 0.054 mg/l |
| 5 Dec 2023, 13:57 | 0.089 | 0.089 mg/l |
| 21 Nov 2023, 09:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Oct 2023, 09:34 | 0.14 | 0.14 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
9.98 mg/l
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 9.98 | 9.98 mg/l |
| 6 Jul 2026, 09:49 | 14 | 14 mg/l |
| 8 Jun 2026, 17:23 | 11.9 | 11.9 mg/l |
| 12 May 2026, 14:00 | 20 | 20 mg/l |
| 27 Apr 2026, 14:50 | 15 | 15 mg/l |
| 2 Apr 2025, 13:41 | 15 | 15 mg/l |
| 3 Mar 2025, 15:20 | 18 | 18 mg/l |
| 10 Feb 2025, 13:00 | 19 | 19 mg/l |
| 20 Jan 2025, 14:51 | 17.9 | 17.9 mg/l |
| 9 Dec 2024, 14:31 | 20 | 20 mg/l |
| 26 Nov 2024, 11:10 | 21 | 21 mg/l |
| 15 Oct 2024, 08:40 | 10.9 | 10.9 mg/l |
| 17 Sep 2024, 13:49 | 14 | 14 mg/l |
| 21 Aug 2024, 10:13 | 15 | 15 mg/l |
| 18 Jul 2024, 10:44 | 9.97 | 9.97 mg/l |
| 17 Jun 2024, 14:58 | 9.55 | 9.55 mg/l |
| 14 May 2024, 10:29 | 10.9 | 10.9 mg/l |
| 16 Apr 2024, 10:05 | 9.96 | 9.96 mg/l |
| 18 Mar 2024, 11:44 | 9.67 | 9.67 mg/l |
| 22 Feb 2024, 10:16 | 9.97 | 9.97 mg/l |
| 16 Jan 2024, 10:36 | 16 | 16 mg/l |
| 5 Dec 2023, 13:57 | 18 | 18 mg/l |
| 21 Nov 2023, 09:53 | 21 | 21 mg/l |
| 20 Oct 2023, 09:34 | 13.9 | 13.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.18 mg/l
Sampled 6 Jul 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 09:49 | 0.18 | 0.18 mg/l |
| 8 Jun 2026, 17:23 | 0.14 | 0.14 mg/l |
| 12 May 2026, 14:00 | 0.084 | 0.084 mg/l |
| 27 Apr 2026, 14:50 | 0.028 | 0.028 mg/l |
| 2 Apr 2025, 13:41 | 0.037 | 0.037 mg/l |
| 3 Mar 2025, 15:20 | 0.033 | 0.033 mg/l |
| 10 Feb 2025, 13:00 | 0.038 | 0.038 mg/l |
| 20 Jan 2025, 14:51 | 0.059 | 0.059 mg/l |
| 9 Dec 2024, 14:31 | 0.077 | 0.077 mg/l |
| 26 Nov 2024, 11:10 | 0.042 | 0.042 mg/l |
| 15 Oct 2024, 08:40 | 0.084 | 0.084 mg/l |
| 17 Sep 2024, 13:49 | 0.31 | 0.31 mg/l |
| 21 Aug 2024, 10:13 | 0.25 | 0.25 mg/l |
| 18 Jul 2024, 10:44 | 0.1 | 0.1 mg/l |
| 17 Jun 2024, 14:58 | 0.13 | 0.13 mg/l |
| 14 May 2024, 10:29 | 0.08 | 0.08 mg/l |
| 16 Apr 2024, 10:05 | 0.041 | 0.041 mg/l |
| 18 Mar 2024, 11:44 | 0.066 | 0.066 mg/l |
| 22 Feb 2024, 10:16 | 0.069 | 0.069 mg/l |
| 16 Jan 2024, 10:36 | 0.08 | 0.08 mg/l |
| 5 Dec 2023, 13:57 | 0.051 | 0.051 mg/l |
| 21 Nov 2023, 09:53 | 0.054 | 0.054 mg/l |
| 20 Oct 2023, 09:34 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1402 µS/cm
Sampled 4 Aug 2026, 58 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:52 | 1402 | 1402 µS/cm |
| 6 Jul 2026, 09:49 | 1496 | 1496 µS/cm |
| 8 Jun 2026, 17:23 | 1062 | 1062 µS/cm |
| 12 May 2026, 14:00 | 1322 | 1322 µS/cm |
| 27 Apr 2026, 14:50 | 1294 | 1294 µS/cm |
| 2 Apr 2025, 13:41 | 1158 | 1158 µS/cm |
| 3 Mar 2025, 15:20 | 992 | 992 µS/cm |
| 10 Feb 2025, 13:00 | 940 | 940 µS/cm |
| 20 Jan 2025, 14:51 | 1032 | 1032 µS/cm |
| 9 Dec 2024, 14:31 | 720 | 720 µS/cm |
| 26 Nov 2024, 11:10 | 879 | 879 µS/cm |
| 15 Oct 2024, 08:40 | 940 | 940 µS/cm |
| 17 Sep 2024, 13:49 | 1167 | 1167 µS/cm |
| 21 Aug 2024, 10:13 | 1446 | 1446 µS/cm |
| 18 Jul 2024, 10:44 | 904 | 904 µS/cm |
| 17 Jun 2024, 14:58 | 1070 | 1070 µS/cm |
| 14 May 2024, 10:29 | 1045 | 1045 µS/cm |
| 16 Apr 2024, 10:05 | 936 | 936 µS/cm |
| 18 Mar 2024, 11:44 | 909 | 909 µS/cm |
| 22 Feb 2024, 10:16 | 780 | 780 µS/cm |
| 16 Jan 2024, 10:36 | 981 | 981 µS/cm |
| 5 Dec 2023, 13:57 | 798 | 798 µS/cm |
| 21 Nov 2023, 09:53 | 961 | 961 µS/cm |
| 20 Oct 2023, 09:34 | 775 | 775 µS/cm |
Everything measured here
17 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 17 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Oct 2023 – Aug 2026 | 74.5% 4 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Oct 2023 – Aug 2026 | 7.01 mg/l 4 Aug 2026 |
| Temperature of Water 0076 | River water | 24 | Oct 2023 – Aug 2026 | 18.2 °C 4 Aug 2026 |
| pH 0061 | River water | 24 | Oct 2023 – Aug 2026 | 7.91 4 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Oct 2023 – Aug 2026 | 0.047 mg/l 4 Aug 2026 |
| Nitrate as N 0117 | River water | 24 | Oct 2023 – Aug 2026 | 9.98 mg/l 4 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Oct 2023 – Jul 2026 | 0.18 mg/l 6 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Oct 2023 – Aug 2026 | 1402 µS/cm 4 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Oct 2023 – Aug 2026 | 240 mg/l 4 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Oct 2023 – Aug 2026 | 0.00127 mg/l 4 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – Apr 2025 | 1.7 mg/l 2 Apr 2025 |
| Calcium, Dissolved 0239 | River water | 5 | Apr 2026 – Aug 2026 | 120 mg/l 4 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 5 | Apr 2026 – Aug 2026 | 7.2 mg/l 4 Aug 2026 |
| Copper : BLM Bioavailable 4821 | River water | 5 | Apr 2026 – Aug 2026 | 0.11 µg/l 4 Aug 2026 |
| Copper, Dissolved 6450 | River water | 5 | Apr 2026 – Aug 2026 | 2.9 µg/l 4 Aug 2026 |
| Nitrite as N 0118 | River water | 24 | Oct 2023 – Aug 2026 | 0.022 mg/l 4 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Oct 2023 – Aug 2026 | 10 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.