Cosgrove Brook A508 Road Bridge NE Old Stratford
EA name: COSGROVE BK.A508 RD.BR.NE OLD STRATFORD
Environment Agency sampling point AN-03M15 · 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 Sep 2026, 12:4527 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 30 since 9 Apr 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 478147, 241794As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Dogsmouth BrookPlaced by position alone, on a line whose map name differs from its own, 1 m from the line.
- Next gauge downstream
- Haversham On the River Great Ouse · 5.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
79.2%
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 79.2 | 79.2% |
| 12 Aug 2026, 12:21 | 86.1 | 86.1% |
| 7 Jul 2026, 13:31 | 82.9 | 82.9% |
| 22 Jun 2026, 10:22 | 79.5 | 79.5% |
| 1 May 2026, 11:34 | 104.1 | 104.1% |
| 17 Apr 2026, 12:07 | 106.2 | 106.2% |
| 25 Mar 2026, 12:40 | 109.6 | 109.6% |
| 4 Feb 2026, 13:50 | 100.7 | 100.7% |
| 6 Jan 2026, 14:19 | 102 | 102% |
| 2 Dec 2025, 12:45 | 96 | 96% |
| 3 Nov 2025, 13:40 | 82.5 | 82.5% |
| 3 Oct 2025, 13:00 | 80.5 | 80.5% |
| 12 Sep 2025, 12:45 | 90.8 | 90.8% |
| 1 Aug 2025, 12:24 | 90.8 | 90.8% |
| 4 Jul 2025, 12:15 | 83.2 | 83.2% |
| 6 Jun 2025, 11:59 | 95.2 | 95.2% |
| 6 May 2025, 11:53 | 100.3 | 100.3% |
| 4 Apr 2025, 15:06 | 121.4 | 121.4% |
| 14 Mar 2025, 10:13 | 104.5 | 104.5% |
| 3 Feb 2025, 13:39 | 99.2 | 99.2% |
| 2 Jan 2025, 12:16 | 97.5 | 97.5% |
| 2 Dec 2024, 12:56 | 97.9 | 97.9% |
| 11 Nov 2024, 12:18 | 97.7 | 97.7% |
| 16 Oct 2024, 13:25 | 96.9 | 96.9% |
| 16 Sep 2024, 12:55 | 94 | 94% |
| 1 Aug 2024, 13:02 | 101 | 101% |
| 1 Jul 2024, 14:03 | 108.3 | 108.3% |
| 11 Jun 2024, 09:47 | 98.4 | 98.4% |
| 2 May 2024, 12:40 | 99.6 | 99.6% |
| 9 Apr 2024, 12:30 | 104.2 | 104.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.65 mg/l
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 7.65 | 7.65 mg/l |
| 12 Aug 2026, 12:21 | 8.28 | 8.28 mg/l |
| 7 Jul 2026, 13:31 | 7.73 | 7.73 mg/l |
| 22 Jun 2026, 10:22 | 7.46 | 7.46 mg/l |
| 1 May 2026, 11:34 | 11.5 | 11.5 mg/l |
| 17 Apr 2026, 12:07 | 11.6 | 11.6 mg/l |
| 25 Mar 2026, 12:40 | 12.9 | 12.9 mg/l |
| 4 Feb 2026, 13:50 | 12.1 | 12.1 mg/l |
| 6 Jan 2026, 14:19 | 13.8 | 13.8 mg/l |
| 2 Dec 2025, 12:45 | 11.2 | 11.2 mg/l |
| 3 Nov 2025, 13:40 | 9.1 | 9.1 mg/l |
| 3 Oct 2025, 13:00 | 8.36 | 8.36 mg/l |
| 12 Sep 2025, 12:45 | 9.5 | 9.5 mg/l |
| 1 Aug 2025, 12:24 | 9.05 | 9.05 mg/l |
| 4 Jul 2025, 12:15 | 8.38 | 8.38 mg/l |
| 6 Jun 2025, 11:59 | 9.98 | 9.98 mg/l |
| 6 May 2025, 11:53 | 11.4 | 11.4 mg/l |
| 4 Apr 2025, 15:06 | 12.6 | 12.6 mg/l |
| 14 Mar 2025, 10:13 | 13.4 | 13.4 mg/l |
| 3 Feb 2025, 13:39 | 12.2 | 12.2 mg/l |
| 2 Jan 2025, 12:16 | 12 | 12 mg/l |
| 2 Dec 2024, 12:56 | 11.2 | 11.2 mg/l |
| 11 Nov 2024, 12:18 | 10.9 | 10.9 mg/l |
| 16 Oct 2024, 13:25 | 10.1 | 10.1 mg/l |
| 16 Sep 2024, 12:55 | 9.99 | 9.99 mg/l |
| 1 Aug 2024, 13:02 | 9.55 | 9.55 mg/l |
| 1 Jul 2024, 14:03 | 11.1 | 11.1 mg/l |
| 11 Jun 2024, 09:47 | 10.9 | 10.9 mg/l |
| 2 May 2024, 12:40 | 10.7 | 10.7 mg/l |
| 9 Apr 2024, 12:30 | 11.8 | 11.8 mg/l |
Water temperature
code 0076 · °C
16.9 °C
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 16.9 | 16.9 °C |
| 12 Aug 2026, 12:21 | 17.1 | 17.1 °C |
| 7 Jul 2026, 13:31 | 18.6 | 18.6 °C |
| 22 Jun 2026, 10:22 | 18.3 | 18.3 °C |
| 1 May 2026, 11:34 | 11 | 11 °C |
| 17 Apr 2026, 12:07 | 11.4 | 11.4 °C |
| 25 Mar 2026, 12:40 | 8.2 | 8.2 °C |
| 4 Feb 2026, 13:50 | 7.4 | 7.4 °C |
| 6 Jan 2026, 14:19 | 2.7 | 2.7 °C |
| 2 Dec 2025, 12:45 | 8.7 | 8.7 °C |
| 3 Nov 2025, 13:40 | 10.9 | 10.9 °C |
| 3 Oct 2025, 13:00 | 13.5 | 13.5 °C |
| 12 Sep 2025, 12:45 | 13.2 | 13.2 °C |
| 1 Aug 2025, 12:24 | 15.4 | 15.4 °C |
| 4 Jul 2025, 12:15 | 14.9 | 14.9 °C |
| 6 Jun 2025, 11:59 | 13.1 | 13.1 °C |
| 6 May 2025, 11:53 | 9.5 | 9.5 °C |
| 4 Apr 2025, 15:06 | 13.4 | 13.4 °C |
| 14 Mar 2025, 10:13 | 4.7 | 4.7 °C |
| 3 Feb 2025, 13:39 | 6.5 | 6.5 °C |
| 2 Jan 2025, 12:16 | 6.3 | 6.3 °C |
| 2 Dec 2024, 12:56 | 9.5 | 9.5 °C |
| 11 Nov 2024, 12:18 | 10.3 | 10.3 °C |
| 16 Oct 2024, 13:25 | 13.2 | 13.2 °C |
| 16 Sep 2024, 12:55 | 12.5 | 12.5 °C |
| 1 Aug 2024, 13:02 | 17.9 | 17.9 °C |
| 1 Jul 2024, 14:03 | 14.2 | 14.2 °C |
| 11 Jun 2024, 09:47 | 10.8 | 10.8 °C |
| 2 May 2024, 12:40 | 12 | 12 °C |
| 9 Apr 2024, 12:30 | 9.9 | 9.9 °C |
pH
code 0061
7.98
Sampled 4 Sep 2026, 27 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 7.98 | 7.98 |
| 12 Aug 2026, 12:21 | 7.91 | 7.91 |
| 7 Jul 2026, 13:31 | 7.88 | 7.88 |
| 22 Jun 2026, 10:22 | 8 | 8 |
| 1 May 2026, 11:34 | 8.05 | 8.05 |
| 17 Apr 2026, 12:07 | 8.18 | 8.18 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2026, 12:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jul 2026, 13:31 | 0.034 | 0.034 mg/l |
| 22 Jun 2026, 10:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 May 2026, 11:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Apr 2026, 12:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Mar 2026, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2026, 14:19 | 0.038 | 0.038 mg/l |
| 2 Dec 2025, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Nov 2025, 13:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2025, 13:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Sep 2025, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2025, 12:24 | 0.031 | 0.031 mg/l |
| 4 Jul 2025, 12:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jun 2025, 11:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 11:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2025, 15:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Mar 2025, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 13:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2025, 12:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Dec 2024, 12:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Nov 2024, 12:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2024, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2024, 12:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2024, 13:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2024, 14:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jun 2024, 09:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 May 2024, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2024, 12:30 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.29 mg/l
Sampled 4 Sep 2026, 27 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 4.29 | 4.29 mg/l |
| 12 Aug 2026, 12:21 | 5.39 | 5.39 mg/l |
| 7 Jul 2026, 13:31 | 6.69 | 6.69 mg/l |
| 22 Jun 2026, 10:22 | 6.89 | 6.89 mg/l |
| 1 May 2026, 11:34 | 9.59 | 9.59 mg/l |
| 17 Apr 2026, 12:07 | 9.69 | 9.69 mg/l |
| 25 Mar 2026, 12:40 | 11 | 11 mg/l |
| 4 Feb 2026, 13:50 | 14 | 14 mg/l |
| 6 Jan 2026, 14:19 | 11 | 11 mg/l |
| 2 Dec 2025, 12:45 | 15 | 15 mg/l |
| 3 Nov 2025, 13:40 | 3.29 | 3.29 mg/l |
| 3 Oct 2025, 13:00 | 5.69 | 5.69 mg/l |
| 12 Sep 2025, 12:45 | 4.99 | 4.99 mg/l |
| 1 Aug 2025, 12:24 | 6.49 | 6.49 mg/l |
| 4 Jul 2025, 12:15 | 7.89 | 7.89 mg/l |
| 6 Jun 2025, 11:59 | 5.49 | 5.49 mg/l |
| 6 May 2025, 11:53 | 9.38 | 9.38 mg/l |
| 4 Apr 2025, 15:06 | 11 | 11 mg/l |
| 14 Mar 2025, 10:13 | 12 | 12 mg/l |
| 3 Feb 2025, 13:39 | 11 | 11 mg/l |
| 2 Jan 2025, 12:16 | 8.58 | 8.58 mg/l |
| 11 Nov 2024, 12:18 | 11 | 11 mg/l |
| 16 Oct 2024, 13:25 | 9.39 | 9.39 mg/l |
| 16 Sep 2024, 12:55 | 7.99 | 7.99 mg/l |
| 1 Aug 2024, 13:02 | 9.69 | 9.69 mg/l |
| 1 Jul 2024, 14:03 | 9.99 | 9.99 mg/l |
| 11 Jun 2024, 09:47 | 9.59 | 9.59 mg/l |
| 2 May 2024, 12:40 | 11 | 11 mg/l |
| 9 Apr 2024, 12:30 | 11 | 11 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.02 mg/l
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 0.02 | 0.02 mg/l |
| 12 Aug 2026, 12:21 | 0.012 | 0.012 mg/l |
| 7 Jul 2026, 13:31 | 0.037 | 0.037 mg/l |
| 22 Jun 2026, 10:22 | 0.042 | 0.042 mg/l |
| 1 May 2026, 11:34 | 0.011 | 0.011 mg/l |
| 17 Apr 2026, 12:07 | 0.012 | 0.012 mg/l |
| 25 Mar 2026, 12:40 | 0.018 | 0.018 mg/l |
| 4 Feb 2026, 13:50 | 0.036 | 0.036 mg/l |
| 6 Jan 2026, 14:19 | 0.036 | 0.036 mg/l |
| 2 Dec 2025, 12:45 | 0.064 | 0.064 mg/l |
| 3 Nov 2025, 13:40 | 0.018 | 0.018 mg/l |
| 3 Oct 2025, 13:00 | 0.034 | 0.034 mg/l |
| 12 Sep 2025, 12:45 | 0.083 | 0.083 mg/l |
| 1 Aug 2025, 12:24 | 0.034 | 0.034 mg/l |
| 4 Jul 2025, 12:15 | 0.016 | 0.016 mg/l |
| 6 Jun 2025, 11:59 | 0.03 | 0.03 mg/l |
| 6 May 2025, 11:53 | 0.016 | 0.016 mg/l |
| 4 Apr 2025, 15:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Mar 2025, 10:13 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Feb 2025, 13:39 | 0.019 | 0.019 mg/l |
| 2 Jan 2025, 12:16 | 0.05 | 0.05 mg/l |
| 2 Dec 2024, 12:56 | 0.041 | 0.041 mg/l |
| 11 Nov 2024, 12:18 | 0.017 | 0.017 mg/l |
| 16 Oct 2024, 13:25 | 0.035 | 0.035 mg/l |
| 16 Sep 2024, 12:55 | 0.044 | 0.044 mg/l |
| 1 Aug 2024, 13:02 | 0.026 | 0.026 mg/l |
| 1 Jul 2024, 14:03 | 0.012 | 0.012 mg/l |
| 11 Jun 2024, 09:47 | 0.03 | 0.03 mg/l |
| 2 May 2024, 12:40 | 0.024 | 0.024 mg/l |
| 9 Apr 2024, 12:30 | 0.025 | 0.025 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
768 µS/cm
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 12:45 | 768 | 768 µS/cm |
| 12 Aug 2026, 12:21 | 759 | 759 µS/cm |
| 7 Jul 2026, 13:31 | 763 | 763 µS/cm |
| 22 Jun 2026, 10:22 | 835 | 835 µS/cm |
| 1 May 2026, 11:34 | 779 | 779 µS/cm |
| 17 Apr 2026, 12:07 | 761 | 761 µS/cm |
| 25 Mar 2026, 12:40 | 736 | 736 µS/cm |
| 4 Feb 2026, 13:50 | 650 | 650 µS/cm |
| 6 Jan 2026, 14:19 | 785 | 785 µS/cm |
| 2 Dec 2025, 12:45 | 638 | 638 µS/cm |
| 3 Nov 2025, 13:40 | 816 | 816 µS/cm |
| 3 Oct 2025, 13:00 | 760 | 760 µS/cm |
| 12 Sep 2025, 12:45 | 754 | 754 µS/cm |
| 1 Aug 2025, 12:24 | 775 | 775 µS/cm |
| 4 Jul 2025, 12:15 | 789 | 789 µS/cm |
| 6 Jun 2025, 11:59 | 704 | 704 µS/cm |
| 6 May 2025, 11:53 | 799 | 799 µS/cm |
| 4 Apr 2025, 15:06 | 742 | 742 µS/cm |
| 14 Mar 2025, 10:13 | 766 | 766 µS/cm |
| 3 Feb 2025, 13:39 | 702 | 702 µS/cm |
| 2 Jan 2025, 12:16 | 625 | 625 µS/cm |
| 2 Dec 2024, 12:56 | 709 | 709 µS/cm |
| 11 Nov 2024, 12:18 | 795 | 795 µS/cm |
| 16 Oct 2024, 13:25 | 658 | 658 µS/cm |
| 16 Sep 2024, 12:55 | 802 | 802 µS/cm |
| 1 Aug 2024, 13:02 | 792 | 792 µS/cm |
| 1 Jul 2024, 14:03 | 761 | 761 µS/cm |
| 11 Jun 2024, 09:47 | 763 | 763 µS/cm |
| 2 May 2024, 12:40 | 760 | 760 µS/cm |
| 9 Apr 2024, 12:30 | 729 | 729 µS/cm |
Everything measured here
18 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 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 30 | Apr 2024 – Sep 2026 | 79.2% 4 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Apr 2024 – Sep 2026 | 7.65 mg/l 4 Sep 2026 |
| Temperature of Water 0076 | River water | 30 | Apr 2024 – Sep 2026 | 16.9 °C 4 Sep 2026 |
| pH 0061 | River water | 6 | Apr 2026 – Sep 2026 | 7.98 4 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Apr 2024 – Sep 2026 | below 0.03 mg/l 4 Sep 2026 |
| Nitrate as N 0117 | River water | 29 | Apr 2024 – Sep 2026 | 4.29 mg/l 4 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Apr 2024 – Sep 2026 | 0.02 mg/l 4 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Apr 2024 – Sep 2026 | 768 µS/cm 4 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Apr 2026 – Sep 2026 | 250 mg/l 4 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 6 | Apr 2026 – Sep 2026 | below 0.00086 mg/l 4 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Apr 2024 – Mar 2026 | 1.4 mg/l 25 Mar 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 24 | Apr 2024 – Mar 2026 | below 10 mg/l 25 Mar 2026 |
| Chloride 0172 | River water | 24 | Apr 2024 – Mar 2026 | 24 mg/l 25 Mar 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 21 | Apr 2024 – Mar 2026 | 9.6 µg/l 25 Mar 2026 |
| Nitrite as N 0118 | River water | 30 | Apr 2024 – Sep 2026 | 0.014 mg/l 4 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Apr 2024 – Sep 2026 | 4.3 mg/l 4 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 24 | Apr 2024 – Mar 2026 | 4.6 mg/l 25 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 24 | Apr 2024 – Mar 2026 | 7.4 mg/l 25 Mar 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.