Shewel Wood
EA name: SHEWEL WOOD (also listed as “RSN1646 SHEWEL WOOD”)
Environment Agency sampling point TH-RSN1646 · 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
- 26 Aug 2026, 14:0643 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 8 since 28 Jan 2026 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 398289, 210622As 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), 3 m from the line.
- Next gauge downstream
- Cirencester On the River Churn · 11 km along the river
- Why it was sampled
- Monitoring (national agency policy) (8 samples)
5 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
113.9%
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 113.9 | 113.9% |
| 18 Feb 2026, 12:12 | 104.5 | 104.5% |
| 28 Jan 2026, 10:38 | 98.3 | 98.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.1 mg/l
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 12.1 | 12.1 mg/l |
| 18 Feb 2026, 12:12 | 12.5 | 12.5 mg/l |
| 28 Jan 2026, 10:38 | 11.5 | 11.5 mg/l |
Water temperature
code 0076 · °C
12.4 °C
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 12.4 | 12.4 °C |
| 18 Feb 2026, 12:12 | 7.5 | 7.5 °C |
| 28 Jan 2026, 10:38 | 8.3 | 8.3 °C |
pH
code 0061
8.47
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 8.47 | 8.47 |
| 18 Feb 2026, 12:12 | 8.36 | 8.36 |
| 28 Jan 2026, 10:38 | 8.3 | 8.3 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.023 mg/l
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 0.023 | 0.023 mg/l |
| 18 Feb 2026, 12:12 | <0.002 | below 0.002 mg/l (not detected above this) |
| 28 Jan 2026, 10:38 | <0.002 | below 0.002 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
13 mg/l
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 13 | 13 mg/l |
| 18 Feb 2026, 12:12 | 15 | 15 mg/l |
| 28 Jan 2026, 10:38 | 16 | 16 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0014 mg/l
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 0.0014 | 0.0014 mg/l |
| 18 Feb 2026, 12:12 | 0.0027 | 0.0027 mg/l |
| 28 Jan 2026, 10:38 | 0.0046 | 0.0046 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
500 µS/cm
Sampled 17 Mar 2026, 7 months ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 12:18 | 500 | 500 µS/cm |
| 18 Feb 2026, 12:12 | 479 | 479 µS/cm |
| 28 Jan 2026, 10:38 | 530 | 530 µS/cm |
Everything measured here
20 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 20 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 3 | Jan 2026 – Mar 2026 | 113.9% 17 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 3 | Jan 2026 – Mar 2026 | 12.1 mg/l 17 Mar 2026 |
| Temperature of Water 0076 | River water | 3 | Jan 2026 – Mar 2026 | 12.4 °C 17 Mar 2026 |
| pH 0061 | River water | 3 | Jan 2026 – Mar 2026 | 8.47 17 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 3 | Jan 2026 – Mar 2026 | 0.023 mg/l 17 Mar 2026 |
| Nitrate as N 0117 | River water | 3 | Jan 2026 – Mar 2026 | 13 mg/l 17 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 3 | Jan 2026 – Mar 2026 | 0.0014 mg/l 17 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 3 | Jan 2026 – Mar 2026 | 500 µS/cm 17 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 3 | Jan 2026 – Mar 2026 | 180 mg/l 17 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 3 | Jan 2026 – Mar 2026 | 0.0005 mg/l 17 Mar 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 3 | Jan 2026 – Mar 2026 | 1.3 mg/l 17 Mar 2026 |
| Chloride 0172 | River water | 3 | Jan 2026 – Mar 2026 | 11 mg/l 17 Mar 2026 |
| Flow Type 2896 | River water | 8 | Jan 2026 – Aug 2026 | Dry 26 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 1 | Mar 2026 – Mar 2026 | 1 text result 17 Mar 2026 |
| Nitrite as N 0118 | River water | 3 | Jan 2026 – Mar 2026 | 0.0059 mg/l 17 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 3 | Jan 2026 – Mar 2026 | 13 mg/l 17 Mar 2026 |
| No flow /No sample 7668 | River water | 5 | Apr 2026 – Aug 2026 | No flow/discharge at sampling point 26 Aug 2026 |
| Phosphorus, Total as P 0348 | River water | 3 | Jan 2026 – Mar 2026 | 0.017 mg/l 17 Mar 2026 |
| Silica, reactive as SiO2 0182 | River water | 3 | Jan 2026 – Mar 2026 | 3 mg/l 17 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 3 | Jan 2026 – Mar 2026 | 16 mg/l 17 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.