Severn, Coombe Bottom
EA name: SEVERN, COOMBE BOTTOM (also listed as “RSN0246 SEVERN, COOMBE BOTTOM”)
Environment Agency sampling point MD-RSN0246 · 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
- 16 Dec 2024, 14:4822 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 25 Oct 2026 and had nothing newer.
- Samples banked
- 8 since 30 Nov 2023 Imported periods: 1 Oct 2023 – 25 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 383746, 225423As published, to the nearest 1 m. Open in a map
- River, by its own name
- Severn
- River, by the map
- An unnamed streamOn a small stream traced into the river its name gives, 26 m from the line.
- Next gauge downstream
- Ashleworth On the River Severn · 2.1 km along the river
- Nearest gauge upstream
- Haw Bridge On the River Severn · 3.3 km along the riverLeigh Court On the Leigh Brook · 3.6 km along the riverArle On the River Chelt · 13 km along the river
- Why it was sampled
- Monitoring (national agency policy) (8 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
91.9%
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 91.9 | 91.9% |
| 11 Nov 2024, 11:07 | 87.5 | 87.5% |
| 7 Oct 2024, 13:11 | 93.4 | 93.4% |
| 16 Sep 2024, 12:35 | 92.9 | 92.9% |
| 6 Jun 2024, 10:43 | 91.3 | 91.3% |
| 23 Jan 2024, 13:43 | 94.3 | 94.3% |
| 20 Dec 2023, 14:17 | 91.5 | 91.5% |
| 30 Nov 2023, 13:58 | 92.6 | 92.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.7 mg/l
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 10.7 | 10.7 mg/l |
| 11 Nov 2024, 11:07 | 9.49 | 9.49 mg/l |
| 7 Oct 2024, 13:11 | 9.68 | 9.68 mg/l |
| 16 Sep 2024, 12:35 | 9.63 | 9.63 mg/l |
| 6 Jun 2024, 10:43 | 8.98 | 8.98 mg/l |
| 23 Jan 2024, 13:43 | 11.4 | 11.4 mg/l |
| 20 Dec 2023, 14:17 | 10.5 | 10.5 mg/l |
| 30 Nov 2023, 13:58 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
8.5 °C
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 8.5 | 8.5 °C |
| 11 Nov 2024, 11:07 | 11.6 | 11.6 °C |
| 7 Oct 2024, 13:11 | 13.6 | 13.6 °C |
| 16 Sep 2024, 12:35 | 13.6 | 13.6 °C |
| 6 Jun 2024, 10:43 | 16 | 16 °C |
| 23 Jan 2024, 13:43 | 7.2 | 7.2 °C |
| 20 Dec 2023, 14:17 | 9.2 | 9.2 °C |
| 30 Nov 2023, 13:58 | 6.2 | 6.2 °C |
pH
code 0061
7.84
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 7.84 | 7.84 |
| 11 Nov 2024, 11:07 | 7.89 | 7.89 |
| 7 Oct 2024, 13:11 | 7.77 | 7.77 |
| 16 Sep 2024, 12:35 | 7.91 | 7.91 |
| 6 Jun 2024, 10:43 | 7.91 | 7.91 |
| 23 Jan 2024, 13:43 | 7.94 | 7.94 |
| 20 Dec 2023, 14:17 | 7.96 | 7.96 |
| 30 Nov 2023, 13:58 | 8.03 | 8.03 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.082 mg/l
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 0.082 | 0.082 mg/l |
| 11 Nov 2024, 11:07 | 0.062 | 0.062 mg/l |
| 7 Oct 2024, 13:11 | 0.043 | 0.043 mg/l |
| 16 Sep 2024, 12:35 | 0.046 | 0.046 mg/l |
| 6 Jun 2024, 10:43 | 0.05 | 0.05 mg/l |
| 23 Jan 2024, 13:43 | 0.16 | 0.16 mg/l |
| 20 Dec 2023, 14:17 | 0.071 | 0.071 mg/l |
| 30 Nov 2023, 13:58 | 0.053 | 0.053 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.26 mg/l
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 4.26 | 4.26 mg/l |
| 11 Nov 2024, 11:07 | 6.58 | 6.58 mg/l |
| 7 Oct 2024, 13:11 | 3.98 | 3.98 mg/l |
| 16 Sep 2024, 12:35 | 6.38 | 6.38 mg/l |
| 6 Jun 2024, 10:43 | 6.58 | 6.58 mg/l |
| 23 Jan 2024, 13:43 | 6.51 | 6.51 mg/l |
| 20 Dec 2023, 14:17 | 5.05 | 5.05 mg/l |
| 30 Nov 2023, 13:58 | 5.97 | 5.97 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.12 mg/l
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 0.12 | 0.12 mg/l |
| 11 Nov 2024, 11:07 | 0.16 | 0.16 mg/l |
| 7 Oct 2024, 13:11 | 0.16 | 0.16 mg/l |
| 16 Sep 2024, 12:35 | 0.21 | 0.21 mg/l |
| 6 Jun 2024, 10:43 | 0.21 | 0.21 mg/l |
| 23 Jan 2024, 13:43 | 0.15 | 0.15 mg/l |
| 20 Dec 2023, 14:17 | 0.12 | 0.12 mg/l |
| 30 Nov 2023, 13:58 | 0.16 | 0.16 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
440 µS/cm
Sampled 16 Dec 2024, 22 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2024, 14:48 | 440 | 440 µS/cm |
| 11 Nov 2024, 11:07 | 666 | 666 µS/cm |
| 7 Oct 2024, 13:11 | 427 | 427 µS/cm |
| 16 Sep 2024, 12:35 | 569 | 569 µS/cm |
| 6 Jun 2024, 10:43 | 683 | 683 µS/cm |
| 23 Jan 2024, 13:43 | 623 | 623 µS/cm |
| 20 Dec 2023, 14:17 | 501 | 501 µS/cm |
| 30 Nov 2023, 13:58 | 566 | 566 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 | 8 | Nov 2023 – Dec 2024 | 91.9% 16 Dec 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 8 | Nov 2023 – Dec 2024 | 10.7 mg/l 16 Dec 2024 |
| Temperature of Water 0076 | River water | 8 | Nov 2023 – Dec 2024 | 8.5 °C 16 Dec 2024 |
| pH 0061 | River water | 8 | Nov 2023 – Dec 2024 | 7.84 16 Dec 2024 |
| Ammoniacal Nitrogen as N 0111 | River water | 8 | Nov 2023 – Dec 2024 | 0.082 mg/l 16 Dec 2024 |
| Nitrate as N 0117 | River water | 8 | Nov 2023 – Dec 2024 | 4.26 mg/l 16 Dec 2024 |
| Orthophosphate, reactive as P 0180 | River water | 8 | Nov 2023 – Dec 2024 | 0.12 mg/l 16 Dec 2024 |
| Conductivity at 25 C 0077 | River water | 8 | Nov 2023 – Dec 2024 | 440 µS/cm 16 Dec 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 8 | Nov 2023 – Dec 2024 | 130 mg/l 16 Dec 2024 |
| Ammonia un-ionised as N 0119 | River water | 8 | Nov 2023 – Dec 2024 | 0.00093 mg/l 16 Dec 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 8 | Nov 2023 – Dec 2024 | 5.6 mg/l 16 Dec 2024 |
| Chloride 0172 | River water | 7 | Nov 2023 – Nov 2024 | 46 mg/l 11 Nov 2024 |
| Flow Type 2896 | River water | 4 | Sep 2024 – Dec 2024 | High Flow 16 Dec 2024 |
| Nitrite as N 0118 | River water | 8 | Nov 2023 – Dec 2024 | 0.04 mg/l 16 Dec 2024 |
| Nitrogen, Total as N 9686 | River water | 8 | Nov 2023 – Dec 2024 | 4.9 mg/l 16 Dec 2024 |
| Nitrogen, Total Oxidised as N 0116 | River water | 8 | Nov 2023 – Dec 2024 | 4.3 mg/l 16 Dec 2024 |
| Phosphorus, Total as P 0348 | River water | 8 | Nov 2023 – Dec 2024 | 0.16 mg/l 16 Dec 2024 |
| Silica, reactive as SiO2 0182 | River water | 7 | Nov 2023 – Dec 2024 | 8.4 mg/l 16 Dec 2024 |
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.