Valley Brook at Marshfield Bridge
EA name: VALLEY BROOK AT MARSHFIELD BRIDGE
Environment Agency sampling point NW-88000697 · 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 Apr 2026, 14:195 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
- 32 since 17 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 367442, 355181As published, to the nearest 1 m. Open in a map
- River, by its own name
- Valley Brook
- River, by the map
- Valley BrookPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Ashbrook On the River Weaver · 14 km along the riverBeside Marshfield Bridge: too close to say above or below.
- Why it was sampled
- Monitoring (national agency policy) (20 samples)
Environmental monitoring statutory (EU directives) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
105.7%
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 105.7 | 105.7% |
| 24 Mar 2026, 13:53 | 98.4 | 98.4% |
| 16 Feb 2026, 12:32 | 97.2 | 97.2% |
| 7 Jan 2026, 12:00 | 94.4 | 94.4% |
| 11 Dec 2025, 09:06 | 97.2 | 97.2% |
| 11 Nov 2025, 10:04 | 86.5 | 86.5% |
| 23 Oct 2025, 11:28 | 82 | 82% |
| 24 Sep 2025, 09:59 | 92.9 | 92.9% |
| 26 Aug 2025, 14:28 | 90.6 | 90.6% |
| 3 Jul 2025, 12:02 | 91.2 | 91.2% |
| 12 Jun 2025, 11:07 | 86.5 | 86.5% |
| 7 May 2025, 10:40 | 95.6 | 95.6% |
| 8 Apr 2025, 12:26 | 106.7 | 106.7% |
| 5 Mar 2025, 10:34 | 97.6 | 97.6% |
| 22 Mar 2024, 10:00 | 95.3 | 95.3% |
| 20 Feb 2024, 10:46 | 96.3 | 96.3% |
| 17 Jan 2024, 10:46 | 96.5 | 96.5% |
| 7 Dec 2023, 11:13 | 98.3 | 98.3% |
| 20 Nov 2023, 09:45 | 95.6 | 95.6% |
| 17 Oct 2023, 09:21 | 95.8 | 95.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11 mg/l
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 11 | 11 mg/l |
| 24 Mar 2026, 13:53 | 11 | 11 mg/l |
| 16 Feb 2026, 12:32 | 12 | 12 mg/l |
| 7 Jan 2026, 12:00 | 12.3 | 12.3 mg/l |
| 11 Dec 2025, 09:06 | 11.5 | 11.5 mg/l |
| 11 Nov 2025, 10:04 | 9.65 | 9.65 mg/l |
| 23 Oct 2025, 11:28 | 9.04 | 9.04 mg/l |
| 24 Sep 2025, 09:59 | 10.4 | 10.4 mg/l |
| 26 Aug 2025, 14:28 | 8.52 | 8.52 mg/l |
| 3 Jul 2025, 12:02 | 9.07 | 9.07 mg/l |
| 12 Jun 2025, 11:07 | 8.75 | 8.75 mg/l |
| 7 May 2025, 10:40 | 10.6 | 10.6 mg/l |
| 8 Apr 2025, 12:26 | 12 | 12 mg/l |
| 5 Mar 2025, 10:34 | 12.1 | 12.1 mg/l |
| 22 Mar 2024, 10:00 | 10.9 | 10.9 mg/l |
| 20 Feb 2024, 10:46 | 11.3 | 11.3 mg/l |
| 17 Jan 2024, 10:46 | 12.7 | 12.7 mg/l |
| 7 Dec 2023, 11:13 | 12.5 | 12.5 mg/l |
| 20 Nov 2023, 09:45 | 10.8 | 10.8 mg/l |
| 17 Oct 2023, 09:21 | 10.9 | 10.9 mg/l |
Water temperature
code 0076 · °C
13.6 °C
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 13.6 | 13.6 °C |
| 24 Mar 2026, 13:53 | 10.4 | 10.4 °C |
| 16 Feb 2026, 12:32 | 6.1 | 6.1 °C |
| 7 Jan 2026, 12:00 | 4.2 | 4.2 °C |
| 11 Dec 2025, 09:06 | 7.9 | 7.9 °C |
| 11 Nov 2025, 10:04 | 10.4 | 10.4 °C |
| 23 Oct 2025, 11:28 | 10.9 | 10.9 °C |
| 24 Sep 2025, 09:59 | 10.4 | 10.4 °C |
| 26 Aug 2025, 14:28 | 18.2 | 18.2 °C |
| 3 Jul 2025, 12:02 | 15.5 | 15.5 °C |
| 12 Jun 2025, 11:07 | 14.7 | 14.7 °C |
| 7 May 2025, 10:40 | 10.8 | 10.8 °C |
| 8 Apr 2025, 12:26 | 9.9 | 9.9 °C |
| 5 Mar 2025, 10:34 | 6.2 | 6.2 °C |
| 22 Mar 2024, 10:00 | 9.5 | 9.5 °C |
| 20 Feb 2024, 10:46 | 8.4 | 8.4 °C |
| 17 Jan 2024, 10:46 | 3.7 | 3.7 °C |
| 7 Dec 2023, 11:13 | 5.2 | 5.2 °C |
| 20 Nov 2023, 09:45 | 9.7 | 9.7 °C |
| 17 Oct 2023, 09:21 | 9.4 | 9.4 °C |
pH
code 0061
8.23
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 8.23 | 8.23 |
| 24 Mar 2026, 13:53 | 8.29 | 8.29 |
| 16 Feb 2026, 12:32 | 7.96 | 7.96 |
| 7 Jan 2026, 12:00 | 7.9 | 7.9 |
| 11 Dec 2025, 09:06 | 7.84 | 7.84 |
| 11 Nov 2025, 10:04 | 8.2 | 8.2 |
| 23 Oct 2025, 11:28 | 7.94 | 7.94 |
| 24 Sep 2025, 09:59 | 8.24 | 8.24 |
| 26 Aug 2025, 14:28 | 8.27 | 8.27 |
| 3 Jul 2025, 12:02 | 8.06 | 8.06 |
| 12 Jun 2025, 11:07 | 8.07 | 8.07 |
| 7 May 2025, 10:40 | 8.28 | 8.28 |
| 8 Apr 2025, 12:26 | 8.37 | 8.37 |
| 5 Mar 2025, 10:34 | 8.17 | 8.17 |
| 22 Mar 2024, 10:00 | 8.06 | 8.06 |
| 20 Feb 2024, 10:46 | 7.89 | 7.89 |
| 17 Jan 2024, 10:46 | 8.01 | 8.01 |
| 7 Dec 2023, 11:13 | 7.9 | 7.9 |
| 20 Nov 2023, 09:45 | 8.04 | 8.04 |
| 17 Oct 2023, 09:21 | 8.1 | 8.1 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.046 mg/l
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 0.046 | 0.046 mg/l |
| 24 Mar 2026, 13:53 | 0.089 | 0.089 mg/l |
| 16 Feb 2026, 12:32 | 0.12 | 0.12 mg/l |
| 7 Jan 2026, 12:00 | 0.73 | 0.73 mg/l |
| 11 Dec 2025, 09:06 | 0.094 | 0.094 mg/l |
| 11 Nov 2025, 10:04 | 0.069 | 0.069 mg/l |
| 23 Oct 2025, 11:28 | 0.8 | 0.8 mg/l |
| 24 Sep 2025, 09:59 | 0.065 | 0.065 mg/l |
| 26 Aug 2025, 14:28 | 0.057 | 0.057 mg/l |
| 3 Jul 2025, 12:02 | 0.054 | 0.054 mg/l |
| 12 Jun 2025, 11:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 May 2025, 10:40 | 0.072 | 0.072 mg/l |
| 8 Apr 2025, 12:26 | 0.048 | 0.048 mg/l |
| 5 Mar 2025, 10:34 | 0.11 | 0.11 mg/l |
| 22 Mar 2024, 10:00 | 0.1 | 0.1 mg/l |
| 20 Feb 2024, 10:46 | 0.099 | 0.099 mg/l |
| 17 Jan 2024, 10:46 | 0.23 | 0.23 mg/l |
| 7 Dec 2023, 11:13 | 0.17 | 0.17 mg/l |
| 20 Nov 2023, 09:45 | 0.091 | 0.091 mg/l |
| 17 Oct 2023, 09:21 | 0.093 | 0.093 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.76 mg/l
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 6.76 | 6.76 mg/l |
| 24 Mar 2026, 13:53 | 6.65 | 6.65 mg/l |
| 16 Feb 2026, 12:32 | 5.76 | 5.76 mg/l |
| 7 Jan 2026, 12:00 | 5.63 | 5.63 mg/l |
| 11 Dec 2025, 09:06 | 7.75 | 7.75 mg/l |
| 11 Nov 2025, 10:04 | 5.07 | 5.07 mg/l |
| 23 Oct 2025, 11:28 | 4.23 | 4.23 mg/l |
| 24 Sep 2025, 09:59 | 4.68 | 4.68 mg/l |
| 26 Aug 2025, 14:28 | 6.53 | 6.53 mg/l |
| 3 Jul 2025, 12:02 | 6.36 | 6.36 mg/l |
| 12 Jun 2025, 11:07 | 5.85 | 5.85 mg/l |
| 7 May 2025, 10:40 | 7.65 | 7.65 mg/l |
| 8 Apr 2025, 12:26 | 7.16 | 7.16 mg/l |
| 5 Mar 2025, 10:34 | 6.07 | 6.07 mg/l |
| 22 Mar 2024, 10:00 | 4.37 | 4.37 mg/l |
| 20 Feb 2024, 10:46 | 4.77 | 4.77 mg/l |
| 17 Jan 2024, 10:46 | 6.55 | 6.55 mg/l |
| 7 Dec 2023, 11:13 | 5.26 | 5.26 mg/l |
| 20 Nov 2023, 09:45 | 5.15 | 5.15 mg/l |
| 17 Oct 2023, 09:21 | 4.76 | 4.76 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.091 mg/l
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 0.091 | 0.091 mg/l |
| 24 Mar 2026, 13:53 | 0.083 | 0.083 mg/l |
| 16 Feb 2026, 12:32 | 0.1 | 0.1 mg/l |
| 7 Jan 2026, 12:00 | 0.11 | 0.11 mg/l |
| 11 Dec 2025, 09:06 | 0.28 | 0.28 mg/l |
| 11 Nov 2025, 10:04 | 0.12 | 0.12 mg/l |
| 23 Oct 2025, 11:28 | 0.19 | 0.19 mg/l |
| 24 Sep 2025, 09:59 | 0.16 | 0.16 mg/l |
| 26 Aug 2025, 14:28 | 0.16 | 0.16 mg/l |
| 3 Jul 2025, 12:02 | 0.18 | 0.18 mg/l |
| 12 Jun 2025, 11:07 | 0.13 | 0.13 mg/l |
| 7 May 2025, 10:40 | 0.11 | 0.11 mg/l |
| 8 Apr 2025, 12:26 | 0.073 | 0.073 mg/l |
| 5 Mar 2025, 10:34 | 0.13 | 0.13 mg/l |
| 22 Mar 2024, 10:00 | 0.092 | 0.092 mg/l |
| 20 Feb 2024, 10:46 | 0.12 | 0.12 mg/l |
| 17 Jan 2024, 10:46 | 0.087 | 0.087 mg/l |
| 7 Dec 2023, 11:13 | 0.084 | 0.084 mg/l |
| 20 Nov 2023, 09:45 | 0.18 | 0.18 mg/l |
| 17 Oct 2023, 09:21 | 0.14 | 0.14 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
844 µS/cm
Sampled 27 Apr 2026, 5 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Apr 2026, 14:19 | 844 | 844 µS/cm |
| 24 Mar 2026, 13:53 | 738 | 738 µS/cm |
| 16 Feb 2026, 12:32 | 627 | 627 µS/cm |
| 7 Jan 2026, 12:00 | 1322 | 1322 µS/cm |
| 11 Dec 2025, 09:06 | 612 | 612 µS/cm |
| 11 Nov 2025, 10:04 | 724 | 724 µS/cm |
| 23 Oct 2025, 11:28 | 614 | 614 µS/cm |
| 24 Sep 2025, 09:59 | 796 | 796 µS/cm |
| 26 Aug 2025, 14:28 | 868 | 868 µS/cm |
| 3 Jul 2025, 12:02 | 835 | 835 µS/cm |
| 12 Jun 2025, 11:07 | 809 | 809 µS/cm |
| 7 May 2025, 10:40 | 855 | 855 µS/cm |
| 8 Apr 2025, 12:26 | 805 | 805 µS/cm |
| 5 Mar 2025, 10:34 | 787 | 787 µS/cm |
| 22 Mar 2024, 10:00 | 624 | 624 µS/cm |
| 20 Feb 2024, 10:46 | 577 | 577 µS/cm |
| 17 Jan 2024, 10:46 | 749 | 749 µS/cm |
| 7 Dec 2023, 11:13 | 631 | 631 µS/cm |
| 20 Nov 2023, 09:45 | 667 | 667 µS/cm |
| 17 Oct 2023, 09:21 | 652 | 652 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 20 | Oct 2023 – Apr 2026 | 105.7% 27 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 20 | Oct 2023 – Apr 2026 | 11 mg/l 27 Apr 2026 |
| Temperature of Water 0076 | River water | 20 | Oct 2023 – Apr 2026 | 13.6 °C 27 Apr 2026 |
| pH 0061 | River water | 20 | Oct 2023 – Apr 2026 | 8.23 27 Apr 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Oct 2023 – Apr 2026 | 0.046 mg/l 27 Apr 2026 |
| Nitrate as N 0117 | River water | 20 | Oct 2023 – Apr 2026 | 6.76 mg/l 27 Apr 2026 |
| Orthophosphate, reactive as P 0180 | River water | 20 | Oct 2023 – Apr 2026 | 0.091 mg/l 27 Apr 2026 |
| Conductivity at 25 C 0077 | River water | 20 | Oct 2023 – Apr 2026 | 844 µS/cm 27 Apr 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Oct 2023 – Apr 2026 | 240 mg/l 27 Apr 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Oct 2023 – Apr 2026 | 0.00109 mg/l 27 Apr 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Feb 2024 – Apr 2026 | 1.3 mg/l 27 Apr 2026 |
| Chloride 0172 | River water | 12 | Apr 2025 – Mar 2026 | 52 mg/l 24 Mar 2026 |
| Nitrite as N 0118 | River water | 20 | Oct 2023 – Apr 2026 | 0.044 mg/l 27 Apr 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 20 | Oct 2023 – Apr 2026 | 6.8 mg/l 27 Apr 2026 |
| Solids, Suspended at 105 C 0135 | River water | 11 | Apr 2025 – Mar 2026 | 12 mg/l 24 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.