River Stour at Shillingstone
EA name: RIVER STOUR AT SHILLINGSTONE (also listed as “RIVER STOUR AT SHILLINGSTONE FOOTBRIDGE”)
Environment Agency sampling point SW-50340391 · 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
- 20 May 2026, 10:374 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
- 30 since 5 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 383031, 111389As published, to the nearest 1 m. Open in a map
- River, by its own name
- Stour
- River, by the map
- River StourPlaced on the river its name gives, 21 m from the line.
- Next gauge downstream
- Blandford On the River Stour · 12 km along the river
- Nearest gauge upstream
- Hammoon On the River Stour · 5.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Environmental monitoring statutory (EU directives) (8 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.5%
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 102.5 | 102.5% |
| 29 Apr 2026, 12:01 | 97.1 | 97.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.7 mg/l
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 10.7 | 10.7 mg/l |
| 29 Apr 2026, 12:01 | 10 | 10 mg/l |
Water temperature
code 0076 · °C
13.5 °C
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 13.5 | 13.5 °C |
| 29 Apr 2026, 12:01 | 13.7 | 13.7 °C |
pH
code 0061
8.18
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 8.18 | 8.18 |
| 29 Apr 2026, 12:01 | 8.25 | 8.25 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Apr 2026, 12:01 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.39 mg/l
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 5.39 | 5.39 mg/l |
| 29 Apr 2026, 12:01 | 5.09 | 5.09 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.079 mg/l
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 0.079 | 0.079 mg/l |
| 29 Apr 2026, 12:01 | 0.065 | 0.065 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
638 µS/cm
Sampled 20 May 2026, 4 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:37 | 638 | 638 µS/cm |
| 29 Apr 2026, 12:01 | 616 | 616 µS/cm |
Everything measured here
23 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 23 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 2 | Apr 2026 – May 2026 | 102.5% 20 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 2 | Apr 2026 – May 2026 | 10.7 mg/l 20 May 2026 |
| Temperature of Water 0076 | River water | 2 | Apr 2026 – May 2026 | 13.5 °C 20 May 2026 |
| pH 0061 | River water | 2 | Apr 2026 – May 2026 | 8.18 20 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 2 | Apr 2026 – May 2026 | below 0.03 mg/l 20 May 2026 |
| Nitrate as N 0117 | River water | 2 | Apr 2026 – May 2026 | 5.39 mg/l 20 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 2 | Apr 2026 – May 2026 | 0.079 mg/l 20 May 2026 |
| Conductivity at 25 C 0077 | River water | 2 | Apr 2026 – May 2026 | 638 µS/cm 20 May 2026 |
| Aldrin 0483 | River water | 28 | Oct 2023 – May 2026 | below 0.001 µg/l 20 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 2 | Apr 2026 – May 2026 | 220 mg/l 20 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 2 | Apr 2026 – May 2026 | below 0.00071 mg/l 20 May 2026 |
| Atrazine 3002 | River water | 28 | Oct 2023 – May 2026 | 0.0032 µg/l 20 May 2026 |
| Dieldrin 0511 | River water | 26 | Oct 2023 – May 2026 | below 0.002 µg/l 20 May 2026 |
| Endrin 0562 | River water | 26 | Oct 2023 – May 2026 | below 0.003 µg/l 20 May 2026 |
| Fenitrothion 9716 | River water | 10 | Oct 2023 – May 2026 | below 0.001 µg/l 20 May 2026 |
| HCH -alpha 0487 | River water | 22 | Oct 2023 – May 2026 | below 0.0001 µg/l 20 May 2026 |
| HCH -beta 0491 | River water | 23 | Oct 2023 – May 2026 | below 0.0001 µg/l 20 May 2026 |
| HCH -delta 0495 | River water | 23 | Oct 2023 – May 2026 | below 0.0001 µg/l 20 May 2026 |
| HCH -gamma :- {Lindane} 0499 | River water | 23 | Oct 2023 – May 2026 | 0.00011 µg/l 20 May 2026 |
| Isodrin 9494 | River water | 28 | Oct 2023 – May 2026 | below 0.001 µg/l 20 May 2026 |
| Nitrite as N 0118 | River water | 2 | Apr 2026 – May 2026 | 0.013 mg/l 20 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 2 | Apr 2026 – May 2026 | 5.4 mg/l 20 May 2026 |
| Simazine 3001 | River water | 27 | Oct 2023 – May 2026 | below 0.003 µg/l 20 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.