Upstream of Ravens Nest, Matley Bog
EA name: U/S RAVENS NEST, MATLEY BOG
Environment Agency sampling point SO-G0006978 · 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
- 17 Mar 2025, 12:5819 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 8 Oct 2026 and had nothing newer.
- Samples banked
- 10 since 6 Jun 2024 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 431057, 107584As 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
- An unnamed streamPlaced by position alone (the only river line close by), 6 m from the line.
- Next gauge downstream
- HARTFORD BRIDGE GS 12 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (10 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.5%
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 87.5 | 87.5% |
| 14 Feb 2025, 10:29 | 87 | 87% |
| 8 Jan 2025, 12:00 | 83.5 | 83.5% |
| 13 Dec 2024, 10:19 | 81.7 | 81.7% |
| 13 Nov 2024, 08:40 | 70.1 | 70.1% |
| 29 Oct 2024, 11:11 | 72.7 | 72.7% |
| 6 Sep 2024, 09:36 | 74.5 | 74.5% |
| 6 Aug 2024, 16:57 | 68.7 | 68.7% |
| 10 Jul 2024, 10:03 | 85 | 85% |
| 6 Jun 2024, 11:31 | 86 | 86% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.5 mg/l
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 10.5 | 10.5 mg/l |
| 14 Feb 2025, 10:29 | 11 | 11 mg/l |
| 8 Jan 2025, 12:00 | 10.6 | 10.6 mg/l |
| 13 Dec 2024, 10:19 | 9.73 | 9.73 mg/l |
| 13 Nov 2024, 08:40 | 7.95 | 7.95 mg/l |
| 29 Oct 2024, 11:11 | 7.71 | 7.71 mg/l |
| 6 Sep 2024, 09:36 | 7.43 | 7.43 mg/l |
| 6 Aug 2024, 16:57 | 6.53 | 6.53 mg/l |
| 10 Jul 2024, 10:03 | 8.46 | 8.46 mg/l |
| 6 Jun 2024, 11:31 | 9.16 | 9.16 mg/l |
Water temperature
code 0076 · °C
7.3 °C
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 7.3 | 7.3 °C |
| 14 Feb 2025, 10:29 | 5.2 | 5.2 °C |
| 8 Jan 2025, 12:00 | 5.1 | 5.1 °C |
| 13 Dec 2024, 10:19 | 7.7 | 7.7 °C |
| 13 Nov 2024, 08:40 | 9.7 | 9.7 °C |
| 29 Oct 2024, 11:11 | 12.6 | 12.6 °C |
| 6 Sep 2024, 09:36 | 15.4 | 15.4 °C |
| 6 Aug 2024, 16:57 | 17.7 | 17.7 °C |
| 10 Jul 2024, 10:03 | 15.5 | 15.5 °C |
| 6 Jun 2024, 11:31 | 12.4 | 12.4 °C |
pH
code 0061
7.21
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 7.21 | 7.21 |
| 14 Feb 2025, 10:29 | 7.08 | 7.08 |
| 8 Jan 2025, 12:00 | 6.99 | 6.99 |
| 13 Dec 2024, 10:19 | 7.07 | 7.07 |
| 13 Nov 2024, 08:40 | 7.03 | 7.03 |
| 29 Oct 2024, 11:11 | 6.97 | 6.97 |
| 6 Sep 2024, 09:36 | 7.1 | 7.1 |
| 6 Aug 2024, 16:57 | 7.29 | 7.29 |
| 10 Jul 2024, 10:03 | 7.21 | 7.21 |
| 6 Jun 2024, 11:31 | 7.41 | 7.41 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Feb 2025, 10:29 | 0.04 | 0.04 mg/l |
| 8 Jan 2025, 12:00 | 0.041 | 0.041 mg/l |
| 13 Dec 2024, 10:19 | 0.042 | 0.042 mg/l |
| 13 Nov 2024, 08:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Oct 2024, 11:11 | 0.033 | 0.033 mg/l |
| 6 Sep 2024, 09:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Aug 2024, 16:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jul 2024, 10:03 | 0.036 | 0.036 mg/l |
| 6 Jun 2024, 11:31 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.4 mg/l
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 1.4 | 1.4 mg/l |
| 14 Feb 2025, 10:29 | 1.49 | 1.49 mg/l |
| 8 Jan 2025, 12:00 | 1.79 | 1.79 mg/l |
| 13 Dec 2024, 10:19 | 1.39 | 1.39 mg/l |
| 13 Nov 2024, 08:40 | 0.65 | 0.65 mg/l |
| 29 Oct 2024, 11:11 | 0.832 | 0.832 mg/l |
| 6 Sep 2024, 09:36 | 0.815 | 0.815 mg/l |
| 6 Aug 2024, 16:57 | 0.702 | 0.702 mg/l |
| 10 Jul 2024, 10:03 | 0.679 | 0.679 mg/l |
| 6 Jun 2024, 11:31 | 0.871 | 0.871 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.024 mg/l
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 0.024 | 0.024 mg/l |
| 14 Feb 2025, 10:29 | 0.032 | 0.032 mg/l |
| 8 Jan 2025, 12:00 | 0.04 | 0.04 mg/l |
| 13 Dec 2024, 10:19 | 0.03 | 0.03 mg/l |
| 13 Nov 2024, 08:40 | 0.035 | 0.035 mg/l |
| 29 Oct 2024, 11:11 | 0.053 | 0.053 mg/l |
| 6 Sep 2024, 09:36 | 0.056 | 0.056 mg/l |
| 6 Aug 2024, 16:57 | 0.056 | 0.056 mg/l |
| 10 Jul 2024, 10:03 | 0.05 | 0.05 mg/l |
| 6 Jun 2024, 11:31 | 0.039 | 0.039 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
335 µS/cm
Sampled 17 Mar 2025, 19 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2025, 12:58 | 335 | 335 µS/cm |
| 14 Feb 2025, 10:29 | 330 | 330 µS/cm |
| 8 Jan 2025, 12:00 | 269 | 269 µS/cm |
| 13 Dec 2024, 10:19 | 306 | 306 µS/cm |
| 13 Nov 2024, 08:40 | 343 | 343 µS/cm |
| 29 Oct 2024, 11:11 | 317 | 317 µS/cm |
| 6 Sep 2024, 09:36 | 328 | 328 µS/cm |
| 6 Aug 2024, 16:57 | 204 | 204 µS/cm |
| 10 Jul 2024, 10:03 | 333 | 333 µS/cm |
| 6 Jun 2024, 11:31 | 352 | 352 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 | 10 | Jun 2024 – Mar 2025 | 87.5% 17 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 10 | Jun 2024 – Mar 2025 | 10.5 mg/l 17 Mar 2025 |
| Temperature of Water 0076 | River water | 10 | Jun 2024 – Mar 2025 | 7.3 °C 17 Mar 2025 |
| pH 0061 | River water | 10 | Jun 2024 – Mar 2025 | 7.21 17 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 10 | Jun 2024 – Mar 2025 | below 0.03 mg/l 17 Mar 2025 |
| Nitrate as N 0117 | River water | 10 | Jun 2024 – Mar 2025 | 1.4 mg/l 17 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 10 | Jun 2024 – Mar 2025 | 0.024 mg/l 17 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 10 | Jun 2024 – Mar 2025 | 335 µS/cm 17 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 10 | Jun 2024 – Mar 2025 | 78 mg/l 17 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 10 | Jun 2024 – Mar 2025 | below 0.00007 mg/l 17 Mar 2025 |
| BOD : 5 Day ATU 0085 | River water | 10 | Jun 2024 – Mar 2025 | 1.4 mg/l 17 Mar 2025 |
| Chloride 0172 | River water | 10 | Jun 2024 – Mar 2025 | 33 mg/l 17 Mar 2025 |
| Nitrite as N 0118 | River water | 10 | Jun 2024 – Mar 2025 | 0.0047 mg/l 17 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 10 | Jun 2024 – Mar 2025 | 1.4 mg/l 17 Mar 2025 |
| Silica, reactive as SiO2 0182 | River water | 10 | Jun 2024 – Mar 2025 | 11 mg/l 17 Mar 2025 |
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.