Cut off Channel A10 Road Bridge Hilgay
EA name: CUT OFF CHANNEL A10 RD.BR.HILGAY
Environment Agency sampling point AN-56M08 · 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
- 11 May 2026, 17:145 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 20 since 17 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 562200, 299200As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Cut Off Channel
- River, by the map
- Cut-off ChannelPlaced on the river its name gives, 23 m from the line.
- Next gauge downstream
- Freebridge On the River Great Ouse · 22 km along the river (the path rests on a repair to the map)
- Why it was sampled
- Monitoring (national agency policy) (20 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
167.8%
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | 167.8 | 167.8% |
| 10 Apr 2026, 10:04 | 114.2 | 114.2% |
| 12 Jan 2026, 11:01 | 83.4 | 83.4% |
| 28 Oct 2025, 11:56 | 98.2 | 98.2% |
| 11 Aug 2025, 08:32 | 146.4 | 146.4% |
| 22 Jul 2025, 08:38 | 89.2 | 89.2% |
| 1 Jul 2025, 13:36 | 181.5 | 181.5% |
| 5 Jun 2025, 16:04 | 101.7 | 101.7% |
| 6 May 2025, 10:22 | 151.2 | 151.2% |
| 7 Apr 2025, 12:03 | 158.2 | 158.2% |
| 6 Mar 2025, 17:44 | 103.2 | 103.2% |
| 5 Feb 2025, 08:42 | 85.6 | 85.6% |
| 20 Jan 2025, 16:27 | 81 | 81% |
| 3 Dec 2024, 12:35 | 81.4 | 81.4% |
| 18 Nov 2024, 10:10 | 78.7 | 78.7% |
| 14 Oct 2024, 14:18 | 79.7 | 79.7% |
| 16 Sep 2024, 13:19 | 102.5 | 102.5% |
| 19 Aug 2024, 11:50 | 115.1 | 115.1% |
| 15 Jul 2024, 12:03 | 100.9 | 100.9% |
| 17 Jun 2024, 13:58 | 102.4 | 102.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
16.2 mg/l
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | 16.2 | 16.2 mg/l |
| 10 Apr 2026, 10:04 | 12.3 | 12.3 mg/l |
| 12 Jan 2026, 11:01 | 11 | 11 mg/l |
| 28 Oct 2025, 11:56 | 10.9 | 10.9 mg/l |
| 11 Aug 2025, 08:32 | 13.1 | 13.1 mg/l |
| 22 Jul 2025, 08:38 | 7.92 | 7.92 mg/l |
| 1 Jul 2025, 13:36 | 14.8 | 14.8 mg/l |
| 5 Jun 2025, 16:04 | 9.6 | 9.6 mg/l |
| 6 May 2025, 10:22 | 15 | 15 mg/l |
| 7 Apr 2025, 12:03 | 16.6 | 16.6 mg/l |
| 6 Mar 2025, 17:44 | 12.3 | 12.3 mg/l |
| 5 Feb 2025, 08:42 | 10.9 | 10.9 mg/l |
| 20 Jan 2025, 16:27 | 9.51 | 9.51 mg/l |
| 3 Dec 2024, 12:35 | 10 | 10 mg/l |
| 18 Nov 2024, 10:10 | 9.28 | 9.28 mg/l |
| 14 Oct 2024, 14:18 | 8.79 | 8.79 mg/l |
| 16 Sep 2024, 13:19 | 10 | 10 mg/l |
| 19 Aug 2024, 11:50 | 10.3 | 10.3 mg/l |
| 15 Jul 2024, 12:03 | 9.51 | 9.51 mg/l |
| 17 Jun 2024, 13:58 | 9.85 | 9.85 mg/l |
Water temperature
code 0076 · °C
16.9 °C
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | 16.9 | 16.9 °C |
| 10 Apr 2026, 10:04 | 12 | 12 °C |
| 12 Jan 2026, 11:01 | 3.7 | 3.7 °C |
| 28 Oct 2025, 11:56 | 10.5 | 10.5 °C |
| 11 Aug 2025, 08:32 | 20.7 | 20.7 °C |
| 22 Jul 2025, 08:38 | 21.1 | 21.1 °C |
| 1 Jul 2025, 13:36 | 25.6 | 25.6 °C |
| 5 Jun 2025, 16:04 | 18 | 18 °C |
| 6 May 2025, 10:22 | 15.7 | 15.7 °C |
| 7 Apr 2025, 12:03 | 13.2 | 13.2 °C |
| 6 Mar 2025, 17:44 | 7.7 | 7.7 °C |
| 5 Feb 2025, 08:42 | 4.9 | 4.9 °C |
| 20 Jan 2025, 16:27 | 8.3 | 8.3 °C |
| 3 Dec 2024, 12:35 | 6.4 | 6.4 °C |
| 18 Nov 2024, 10:10 | 8.1 | 8.1 °C |
| 14 Oct 2024, 14:18 | 10.9 | 10.9 °C |
| 16 Sep 2024, 13:19 | 16.4 | 16.4 °C |
| 19 Aug 2024, 11:50 | 20.8 | 20.8 °C |
| 15 Jul 2024, 12:03 | 18.1 | 18.1 °C |
| 17 Jun 2024, 13:58 | 17.1 | 17.1 °C |
pH
code 0061
8.44
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | 8.44 | 8.44 |
| 10 Apr 2026, 10:04 | 8.4 | 8.4 |
| 12 Jan 2026, 11:01 | 7.75 | 7.75 |
| 28 Oct 2025, 11:56 | 8.09 | 8.09 |
| 11 Aug 2025, 08:32 | 8.37 | 8.37 |
| 22 Jul 2025, 08:38 | 7.67 | 7.67 |
| 1 Jul 2025, 13:36 | 8.4 | 8.4 |
| 5 Jun 2025, 16:04 | 8.27 | 8.27 |
| 6 May 2025, 10:22 | 8.31 | 8.31 |
| 7 Apr 2025, 12:03 | 8.26 | 8.26 |
| 6 Mar 2025, 17:44 | 8.04 | 8.04 |
| 5 Feb 2025, 08:42 | 7.97 | 7.97 |
| 20 Jan 2025, 16:27 | 7.62 | 7.62 |
| 3 Dec 2024, 12:35 | 7.94 | 7.94 |
| 18 Nov 2024, 10:10 | 7.76 | 7.76 |
| 14 Oct 2024, 14:18 | 7.75 | 7.75 |
| 16 Sep 2024, 13:19 | 7.85 | 7.85 |
| 19 Aug 2024, 11:50 | 8.02 | 8.02 |
| 15 Jul 2024, 12:03 | 8.01 | 8.01 |
| 17 Jun 2024, 13:58 | 8.05 | 8.05 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2026, 10:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jan 2026, 11:01 | 0.054 | 0.054 mg/l |
| 28 Oct 2025, 11:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Aug 2025, 08:32 | 0.08 | 0.08 mg/l |
| 22 Jul 2025, 08:38 | 0.091 | 0.091 mg/l |
| 1 Jul 2025, 13:36 | 0.2 | 0.2 mg/l |
| 5 Jun 2025, 16:04 | 0.063 | 0.063 mg/l |
| 6 May 2025, 10:22 | 0.05 | 0.05 mg/l |
| 7 Apr 2025, 12:03 | 0.076 | 0.076 mg/l |
| 6 Mar 2025, 17:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2025, 08:42 | 0.073 | 0.073 mg/l |
| 20 Jan 2025, 16:27 | 0.086 | 0.086 mg/l |
| 3 Dec 2024, 12:35 | 0.051 | 0.051 mg/l |
| 18 Nov 2024, 10:10 | 0.045 | 0.045 mg/l |
| 14 Oct 2024, 14:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2024, 13:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Aug 2024, 11:50 | 0.038 | 0.038 mg/l |
| 15 Jul 2024, 12:03 | 0.032 | 0.032 mg/l |
| 17 Jun 2024, 13:58 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.85 mg/l
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | 7.85 | 7.85 mg/l |
| 10 Apr 2026, 10:04 | 9.88 | 9.88 mg/l |
| 12 Jan 2026, 11:01 | 12 | 12 mg/l |
| 28 Oct 2025, 11:56 | 9.97 | 9.97 mg/l |
| 11 Aug 2025, 08:32 | 2.27 | 2.27 mg/l |
| 22 Jul 2025, 08:38 | 2.55 | 2.55 mg/l |
| 1 Jul 2025, 13:36 | 5.26 | 5.26 mg/l |
| 5 Jun 2025, 16:04 | 9.05 | 9.05 mg/l |
| 6 May 2025, 10:22 | 8.86 | 8.86 mg/l |
| 7 Apr 2025, 12:03 | 8.76 | 8.76 mg/l |
| 6 Mar 2025, 17:44 | 9.97 | 9.97 mg/l |
| 5 Feb 2025, 08:42 | 12 | 12 mg/l |
| 20 Jan 2025, 16:27 | 10.9 | 10.9 mg/l |
| 3 Dec 2024, 12:35 | 9.26 | 9.26 mg/l |
| 18 Nov 2024, 10:10 | 9.13 | 9.13 mg/l |
| 14 Oct 2024, 14:18 | 8.16 | 8.16 mg/l |
| 16 Sep 2024, 13:19 | 5.15 | 5.15 mg/l |
| 19 Aug 2024, 11:50 | 6.67 | 6.67 mg/l |
| 15 Jul 2024, 12:03 | 6.07 | 6.07 mg/l |
| 17 Jun 2024, 13:58 | 7.67 | 7.67 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 11 May 2026, 5 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Apr 2026, 10:04 | 0.047 | 0.047 mg/l |
| 12 Jan 2026, 11:01 | 0.058 | 0.058 mg/l |
| 28 Oct 2025, 11:56 | 0.17 | 0.17 mg/l |
| 11 Aug 2025, 08:32 | <0.01 | below 0.01 mg/l (not detected above this) |
| 22 Jul 2025, 08:38 | 0.053 | 0.053 mg/l |
| 1 Jul 2025, 13:36 | 0.01 | 0.01 mg/l |
| 5 Jun 2025, 16:04 | 0.041 | 0.041 mg/l |
| 6 May 2025, 10:22 | 0.016 | 0.016 mg/l |
| 7 Apr 2025, 12:03 | <0.01 | below 0.01 mg/l (not detected above this) |
| 6 Mar 2025, 17:44 | 0.054 | 0.054 mg/l |
| 5 Feb 2025, 08:42 | 0.079 | 0.079 mg/l |
| 20 Jan 2025, 16:27 | 0.084 | 0.084 mg/l |
| 18 Nov 2024, 10:10 | 0.072 | 0.072 mg/l |
| 14 Oct 2024, 14:18 | 0.098 | 0.098 mg/l |
| 16 Sep 2024, 13:19 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Aug 2024, 11:50 | 0.013 | 0.013 mg/l |
| 15 Jul 2024, 12:03 | 0.06 | 0.06 mg/l |
| 17 Jun 2024, 13:58 | 0.045 | 0.045 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
793 µS/cm
Sampled 11 May 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 17:14 | 793 | 793 µS/cm |
| 10 Apr 2026, 10:04 | 889 | 889 µS/cm |
| 12 Jan 2026, 11:01 | 1014 | 1014 µS/cm |
| 28 Oct 2025, 11:56 | 964 | 964 µS/cm |
| 11 Aug 2025, 08:32 | 799 | 799 µS/cm |
| 22 Jul 2025, 08:38 | 707 | 707 µS/cm |
| 1 Jul 2025, 13:36 | 743 | 743 µS/cm |
| 5 Jun 2025, 16:04 | 810 | 810 µS/cm |
| 6 May 2025, 10:22 | 804 | 804 µS/cm |
| 7 Apr 2025, 12:03 | 765 | 765 µS/cm |
| 6 Mar 2025, 17:44 | 780 | 780 µS/cm |
| 5 Feb 2025, 08:42 | 823 | 823 µS/cm |
| 20 Jan 2025, 16:27 | 850 | 850 µS/cm |
| 3 Dec 2024, 12:35 | 806 | 806 µS/cm |
| 18 Nov 2024, 10:10 | 795 | 795 µS/cm |
| 14 Oct 2024, 14:18 | 786 | 786 µS/cm |
| 16 Sep 2024, 13:19 | 696 | 696 µS/cm |
| 19 Aug 2024, 11:50 | 705 | 705 µS/cm |
| 15 Jul 2024, 12:03 | 720 | 720 µS/cm |
| 17 Jun 2024, 13:58 | 755 | 755 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 | 20 | Jun 2024 – May 2026 | 167.8% 11 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 20 | Jun 2024 – May 2026 | 16.2 mg/l 11 May 2026 |
| Temperature of Water 0076 | River water | 20 | Jun 2024 – May 2026 | 16.9 °C 11 May 2026 |
| pH 0061 | River water | 20 | Jun 2024 – May 2026 | 8.44 11 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Jun 2024 – May 2026 | below 0.03 mg/l 11 May 2026 |
| Nitrate as N 0117 | River water | 20 | Jun 2024 – May 2026 | 7.85 mg/l 11 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Jun 2024 – May 2026 | below 0.01 mg/l 11 May 2026 |
| Conductivity at 25 C 0077 | River water | 20 | Jun 2024 – May 2026 | 793 µS/cm 11 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Jun 2024 – May 2026 | 220 mg/l 11 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Jun 2024 – May 2026 | below 0.0009 mg/l 11 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 19 | Jun 2024 – May 2026 | 5.8 mg/l 11 May 2026 |
| Nitrite as N 0118 | River water | 20 | Jun 2024 – May 2026 | 0.047 mg/l 11 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 20 | Jun 2024 – May 2026 | 7.9 mg/l 11 May 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.