Marchfont Brook Weston on Avon
EA name: MARCHFONT BROOK WESTON ON AVON
Environment Agency sampling point MD-09443030 · 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
- 27 May 2026, 11:044 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 16 Oct 2023 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 415960, 251890As published, to the nearest 10 m. Open in a map
- River, by its own name
- Marchfont Brook Weston
- River, by the map
- Marchfont BrookPlaced on a river whose name partly matches its own, 5 m from the line.
- Next gauge downstream
- Bidford on Avon On the River Avon · 9.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (20 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
53.4%
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 53.4 | 53.4% |
| 17 Apr 2026, 13:25 | 119.9 | 119.9% |
| 19 Mar 2026, 13:48 | 107.4 | 107.4% |
| 19 Feb 2026, 10:12 | 95 | 95% |
| 27 Mar 2025, 10:25 | 108.9 | 108.9% |
| 5 Feb 2025, 11:08 | 92.1 | 92.1% |
| 22 Jan 2025, 09:57 | 95.5 | 95.5% |
| 2 Dec 2024, 10:43 | 92.2 | 92.2% |
| 17 Oct 2024, 10:36 | 90.7 | 90.7% |
| 18 Sep 2024, 11:05 | 63.7 | 63.7% |
| 27 Aug 2024, 11:26 | 67.4 | 67.4% |
| 27 Jun 2024, 10:35 | 49 | 49% |
| 14 May 2024, 10:02 | 85.8 | 85.8% |
| 17 Apr 2024, 10:09 | 94.6 | 94.6% |
| 20 Mar 2024, 10:54 | 95.3 | 95.3% |
| 20 Feb 2024, 11:54 | 87.9 | 87.9% |
| 29 Jan 2024, 11:29 | 96.5 | 96.5% |
| 6 Dec 2023, 14:01 | 85.8 | 85.8% |
| 29 Nov 2023, 12:26 | 95 | 95% |
| 16 Oct 2023, 13:11 | 93.8 | 93.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
4.91 mg/l
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 4.91 | 4.91 mg/l |
| 17 Apr 2026, 13:25 | 12.6 | 12.6 mg/l |
| 19 Mar 2026, 13:48 | 12.1 | 12.1 mg/l |
| 19 Feb 2026, 10:12 | 12 | 12 mg/l |
| 27 Mar 2025, 10:25 | 12.2 | 12.2 mg/l |
| 5 Feb 2025, 11:08 | 11.6 | 11.6 mg/l |
| 22 Jan 2025, 09:57 | 12.3 | 12.3 mg/l |
| 2 Dec 2024, 10:43 | 10.6 | 10.6 mg/l |
| 17 Oct 2024, 10:36 | 9.43 | 9.43 mg/l |
| 18 Sep 2024, 11:05 | 6.68 | 6.68 mg/l |
| 27 Aug 2024, 11:26 | 6.75 | 6.75 mg/l |
| 27 Jun 2024, 10:35 | 4.7 | 4.7 mg/l |
| 14 May 2024, 10:02 | 8.8 | 8.8 mg/l |
| 17 Apr 2024, 10:09 | 11 | 11 mg/l |
| 20 Mar 2024, 10:54 | 10.5 | 10.5 mg/l |
| 20 Feb 2024, 11:54 | 10.1 | 10.1 mg/l |
| 29 Jan 2024, 11:29 | 11.3 | 11.3 mg/l |
| 6 Dec 2023, 14:01 | 10.6 | 10.6 mg/l |
| 29 Nov 2023, 12:26 | 11.8 | 11.8 mg/l |
| 16 Oct 2023, 13:11 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
19.3 °C
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 19.3 | 19.3 °C |
| 17 Apr 2026, 13:25 | 12.9 | 12.9 °C |
| 19 Mar 2026, 13:48 | 9.9 | 9.9 °C |
| 19 Feb 2026, 10:12 | 5.5 | 5.5 °C |
| 27 Mar 2025, 10:25 | 10.2 | 10.2 °C |
| 5 Feb 2025, 11:08 | 5.4 | 5.4 °C |
| 22 Jan 2025, 09:57 | 4.6 | 4.6 °C |
| 2 Dec 2024, 10:43 | 9.1 | 9.1 °C |
| 17 Oct 2024, 10:36 | 13.5 | 13.5 °C |
| 18 Sep 2024, 11:05 | 13.1 | 13.1 °C |
| 27 Aug 2024, 11:26 | 15.2 | 15.2 °C |
| 27 Jun 2024, 10:35 | 17.2 | 17.2 °C |
| 14 May 2024, 10:02 | 14.1 | 14.1 °C |
| 17 Apr 2024, 10:09 | 8.6 | 8.6 °C |
| 20 Mar 2024, 10:54 | 11 | 11 °C |
| 20 Feb 2024, 11:54 | 9.2 | 9.2 °C |
| 29 Jan 2024, 11:29 | 8.4 | 8.4 °C |
| 6 Dec 2023, 14:01 | 6.1 | 6.1 °C |
| 29 Nov 2023, 12:26 | 5.9 | 5.9 °C |
| 16 Oct 2023, 13:11 | 9.2 | 9.2 °C |
pH
code 0061
7.93
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 7.93 | 7.93 |
| 17 Apr 2026, 13:25 | 8.24 | 8.24 |
| 19 Mar 2026, 13:48 | 8.19 | 8.19 |
| 19 Feb 2026, 10:12 | 7.97 | 7.97 |
| 27 Mar 2025, 10:25 | 8.13 | 8.13 |
| 5 Feb 2025, 11:08 | 8.07 | 8.07 |
| 22 Jan 2025, 09:57 | 8.06 | 8.06 |
| 2 Dec 2024, 10:43 | 8.08 | 8.08 |
| 17 Oct 2024, 10:36 | 7.79 | 7.79 |
| 18 Sep 2024, 11:05 | 7.74 | 7.74 |
| 27 Aug 2024, 11:26 | 7.75 | 7.75 |
| 27 Jun 2024, 10:35 | 7.68 | 7.68 |
| 14 May 2024, 10:02 | 7.99 | 7.99 |
| 17 Apr 2024, 10:09 | 8.06 | 8.06 |
| 20 Mar 2024, 10:54 | 7.94 | 7.94 |
| 20 Feb 2024, 11:54 | 7.82 | 7.82 |
| 29 Jan 2024, 11:29 | 8.17 | 8.17 |
| 6 Dec 2023, 14:01 | 7.59 | 7.59 |
| 29 Nov 2023, 12:26 | 8.13 | 8.13 |
| 16 Oct 2023, 13:11 | 7.82 | 7.82 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.17 mg/l
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 0.17 | 0.17 mg/l |
| 17 Apr 2026, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2026, 13:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2026, 10:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2025, 10:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2025, 11:08 | 0.23 | 0.23 mg/l |
| 22 Jan 2025, 09:57 | 0.068 | 0.068 mg/l |
| 2 Dec 2024, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Oct 2024, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Sep 2024, 11:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Aug 2024, 11:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jun 2024, 10:35 | 0.12 | 0.12 mg/l |
| 14 May 2024, 10:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Apr 2024, 10:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2024, 10:54 | 0.061 | 0.061 mg/l |
| 20 Feb 2024, 11:54 | 0.042 | 0.042 mg/l |
| 29 Jan 2024, 11:29 | 0.075 | 0.075 mg/l |
| 6 Dec 2023, 14:01 | 0.048 | 0.048 mg/l |
| 29 Nov 2023, 12:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 13:11 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.73 mg/l
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 5.73 | 5.73 mg/l |
| 17 Apr 2026, 13:25 | 5.08 | 5.08 mg/l |
| 19 Mar 2026, 13:48 | 6.59 | 6.59 mg/l |
| 19 Feb 2026, 10:12 | 6.79 | 6.79 mg/l |
| 27 Mar 2025, 10:25 | 4.79 | 4.79 mg/l |
| 5 Feb 2025, 11:08 | 6.57 | 6.57 mg/l |
| 22 Jan 2025, 09:57 | 6.98 | 6.98 mg/l |
| 2 Dec 2024, 10:43 | 6.58 | 6.58 mg/l |
| 17 Oct 2024, 10:36 | 7.88 | 7.88 mg/l |
| 18 Sep 2024, 11:05 | 11.9 | 11.9 mg/l |
| 27 Aug 2024, 11:26 | 6.78 | 6.78 mg/l |
| 27 Jun 2024, 10:35 | 12.9 | 12.9 mg/l |
| 14 May 2024, 10:02 | 5.08 | 5.08 mg/l |
| 17 Apr 2024, 10:09 | 5.58 | 5.58 mg/l |
| 20 Mar 2024, 10:54 | 5.18 | 5.18 mg/l |
| 20 Feb 2024, 11:54 | 5.79 | 5.79 mg/l |
| 29 Jan 2024, 11:29 | 6.37 | 6.37 mg/l |
| 6 Dec 2023, 14:01 | 8.58 | 8.58 mg/l |
| 29 Nov 2023, 12:26 | 6.88 | 6.88 mg/l |
| 16 Oct 2023, 13:11 | 9.16 | 9.16 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 0.11 | 0.11 mg/l |
| 17 Apr 2026, 13:25 | 0.031 | 0.031 mg/l |
| 19 Mar 2026, 13:48 | 0.059 | 0.059 mg/l |
| 19 Feb 2026, 10:12 | 0.087 | 0.087 mg/l |
| 27 Mar 2025, 10:25 | 0.055 | 0.055 mg/l |
| 5 Feb 2025, 11:08 | 0.098 | 0.098 mg/l |
| 22 Jan 2025, 09:57 | 0.086 | 0.086 mg/l |
| 2 Dec 2024, 10:43 | 0.092 | 0.092 mg/l |
| 17 Oct 2024, 10:36 | 0.12 | 0.12 mg/l |
| 18 Sep 2024, 11:05 | 0.089 | 0.089 mg/l |
| 27 Aug 2024, 11:26 | 0.13 | 0.13 mg/l |
| 27 Jun 2024, 10:35 | 0.17 | 0.17 mg/l |
| 14 May 2024, 10:02 | 0.09 | 0.09 mg/l |
| 17 Apr 2024, 10:09 | 0.071 | 0.071 mg/l |
| 20 Mar 2024, 10:54 | 0.06 | 0.06 mg/l |
| 20 Feb 2024, 11:54 | 0.09 | 0.09 mg/l |
| 29 Jan 2024, 11:29 | 0.11 | 0.11 mg/l |
| 6 Dec 2023, 14:01 | 0.11 | 0.11 mg/l |
| 29 Nov 2023, 12:26 | 0.091 | 0.091 mg/l |
| 16 Oct 2023, 13:11 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
806 µS/cm
Sampled 27 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:04 | 806 | 806 µS/cm |
| 17 Apr 2026, 13:25 | 776 | 776 µS/cm |
| 19 Mar 2026, 13:48 | 745 | 745 µS/cm |
| 19 Feb 2026, 10:12 | 597 | 597 µS/cm |
| 27 Mar 2025, 10:25 | 882 | 882 µS/cm |
| 5 Feb 2025, 11:08 | 806 | 806 µS/cm |
| 22 Jan 2025, 09:57 | 851 | 851 µS/cm |
| 2 Dec 2024, 10:43 | 699 | 699 µS/cm |
| 17 Oct 2024, 10:36 | 542 | 542 µS/cm |
| 18 Sep 2024, 11:05 | 831 | 831 µS/cm |
| 27 Aug 2024, 11:26 | 787 | 787 µS/cm |
| 27 Jun 2024, 10:35 | 961 | 961 µS/cm |
| 14 May 2024, 10:02 | 878 | 878 µS/cm |
| 17 Apr 2024, 10:09 | 829 | 829 µS/cm |
| 20 Mar 2024, 10:54 | 656 | 656 µS/cm |
| 20 Feb 2024, 11:54 | 709 | 709 µS/cm |
| 29 Jan 2024, 11:29 | 925 | 925 µS/cm |
| 6 Dec 2023, 14:01 | 660 | 660 µS/cm |
| 29 Nov 2023, 12:26 | 867 | 867 µS/cm |
| 16 Oct 2023, 13:11 | 794 | 794 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 | Oct 2023 – May 2026 | 53.4% 27 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 20 | Oct 2023 – May 2026 | 4.91 mg/l 27 May 2026 |
| Temperature of Water 0076 | River water | 20 | Oct 2023 – May 2026 | 19.3 °C 27 May 2026 |
| pH 0061 | River water | 20 | Oct 2023 – May 2026 | 7.93 27 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Oct 2023 – May 2026 | 0.17 mg/l 27 May 2026 |
| Nitrate as N 0117 | River water | 20 | Oct 2023 – May 2026 | 5.73 mg/l 27 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 20 | Oct 2023 – May 2026 | 0.11 mg/l 27 May 2026 |
| Conductivity at 25 C 0077 | River water | 20 | Oct 2023 – May 2026 | 806 µS/cm 27 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Oct 2023 – May 2026 | 240 mg/l 27 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Oct 2023 – May 2026 | 0.00521 mg/l 27 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – May 2026 | 1.5 mg/l 27 May 2026 |
| Nitrite as N 0118 | River water | 20 | Oct 2023 – May 2026 | 0.17 mg/l 27 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 20 | Oct 2023 – May 2026 | 5.9 mg/l 27 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.