Stour at Canford Sang

EA name: STOUR AT CANFORD SANG (also listed as “RSN1253 STOUR AT CANFORD SANG”)
Environment Agency sampling point SW-RSN1253 · 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
2 Dec 2024, 14:0723 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 27 Oct 2026 and had nothing newer.
Samples banked
10 since 23 Jan 2024 Imported periods: 1 Oct 2023 – 27 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy)
Where
National Grid 404450, 98468As 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, 1 m from the line.
Next gauge downstream
Throop On the River Stour · 12 km along the river
Nearest gauge upstream
Wimborne On the River Stour · 4.2 km along the river
Why it was sampled
Monitoring (national agency policy) (10 samples)

1 visit found no water to sample (recorded as “No flow”).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

92.3%

Sampled 2 Dec 2024, 23 months ago · 9 results banked

708090100110%202420252026no sample published after Dec 202423 Jan 2024, 08:49: 76.4%5 Feb 2024, 09:03: 95.6%13 Jun 2024, 09:17: 101%8 Jul 2024, 09:53: 94.1%1 Aug 2024, 09:29: 95.7%2 Sep 2024, 08:58: 84.9%30 Oct 2024, 09:17: 91.9%13 Nov 2024, 09:48: 96.2%2 Dec 2024, 14:07: 92.3%
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:0792.3 92.3%
13 Nov 2024, 09:4896.2 96.2%
30 Oct 2024, 09:1791.9 91.9%
2 Sep 2024, 08:5884.9 84.9%
1 Aug 2024, 09:2995.7 95.7%
8 Jul 2024, 09:5394.1 94.1%
13 Jun 2024, 09:17101 101%
5 Feb 2024, 09:0395.6 95.6%
23 Jan 2024, 08:4976.4 76.4%

Dissolved oxygen

as O2 · code 9924 · mg/l

10.3 mg/l

Sampled 2 Dec 2024, 23 months ago · 9 results banked

891011mg/l202420252026no sample published after Dec 202423 Jan 2024, 08:49: 9.14 mg/l5 Feb 2024, 09:03: 10.9 mg/l13 Jun 2024, 09:17: 10.6 mg/l8 Jul 2024, 09:53: 9.34 mg/l1 Aug 2024, 09:29: 8.61 mg/l2 Sep 2024, 08:58: 8.16 mg/l30 Oct 2024, 09:17: 9.79 mg/l13 Nov 2024, 09:48: 10.8 mg/l2 Dec 2024, 14:07: 10.3 mg/l
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:0710.3 10.3 mg/l
13 Nov 2024, 09:4810.8 10.8 mg/l
30 Oct 2024, 09:179.79 9.79 mg/l
2 Sep 2024, 08:588.16 8.16 mg/l
1 Aug 2024, 09:298.61 8.61 mg/l
8 Jul 2024, 09:539.34 9.34 mg/l
13 Jun 2024, 09:1710.6 10.6 mg/l
5 Feb 2024, 09:0310.9 10.9 mg/l
23 Jan 2024, 08:499.14 9.14 mg/l

Water temperature

code 0076 · °C

10.4 °C

Sampled 2 Dec 2024, 23 months ago · 9 results banked

510152025°C202420252026no sample published after Dec 202423 Jan 2024, 08:49: 7.5 °C5 Feb 2024, 09:03: 9.6 °C13 Jun 2024, 09:17: 13.1 °C8 Jul 2024, 09:53: 15.6 °C1 Aug 2024, 09:29: 20.4 °C2 Sep 2024, 08:58: 17.1 °C30 Oct 2024, 09:17: 12.4 °C13 Nov 2024, 09:48: 10.2 °C2 Dec 2024, 14:07: 10.4 °C
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:0710.4 10.4 °C
13 Nov 2024, 09:4810.2 10.2 °C
30 Oct 2024, 09:1712.4 12.4 °C
2 Sep 2024, 08:5817.1 17.1 °C
1 Aug 2024, 09:2920.4 20.4 °C
8 Jul 2024, 09:5315.6 15.6 °C
13 Jun 2024, 09:1713.1 13.1 °C
5 Feb 2024, 09:039.6 9.6 °C
23 Jan 2024, 08:497.5 7.5 °C

pH

code 0061

7.82

Sampled 2 Dec 2024, 23 months ago · 9 results banked

7.7588.258.58.75202420252026no sample published after Dec 202423 Jan 2024, 08:49: 7.785 Feb 2024, 09:03: 7.9913 Jun 2024, 09:17: 8.78 Jul 2024, 09:53: 8.241 Aug 2024, 09:29: 8.252 Sep 2024, 08:58: 8.0730 Oct 2024, 09:17: 7.8613 Nov 2024, 09:48: 7.932 Dec 2024, 14:07: 7.82
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:077.82 7.82
13 Nov 2024, 09:487.93 7.93
30 Oct 2024, 09:177.86 7.86
2 Sep 2024, 08:588.07 8.07
1 Aug 2024, 09:298.25 8.25
8 Jul 2024, 09:538.24 8.24
13 Jun 2024, 09:178.7 8.7
5 Feb 2024, 09:037.99 7.99
23 Jan 2024, 08:497.78 7.78

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 2 Dec 2024, 23 months ago · 9 results banked

0.030.040.050.060.07mg/l202420252026no sample published after Dec 202423 Jan 2024, 08:49: 0.064 mg/l5 Feb 2024, 09:03: below 0.03 mg/l (not detected above this)13 Jun 2024, 09:17: below 0.03 mg/l (not detected above this)8 Jul 2024, 09:53: 0.032 mg/l1 Aug 2024, 09:29: below 0.03 mg/l (not detected above this)2 Sep 2024, 08:58: 0.045 mg/l30 Oct 2024, 09:17: 0.036 mg/l13 Nov 2024, 09:48: below 0.03 mg/l (not detected above this)2 Dec 2024, 14:07: below 0.03 mg/l (not detected above this)
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:07<0.03 below 0.03 mg/l (not detected above this)
13 Nov 2024, 09:48<0.03 below 0.03 mg/l (not detected above this)
30 Oct 2024, 09:170.036 0.036 mg/l
2 Sep 2024, 08:580.045 0.045 mg/l
1 Aug 2024, 09:29<0.03 below 0.03 mg/l (not detected above this)
8 Jul 2024, 09:530.032 0.032 mg/l
13 Jun 2024, 09:17<0.03 below 0.03 mg/l (not detected above this)
5 Feb 2024, 09:03<0.03 below 0.03 mg/l (not detected above this)
23 Jan 2024, 08:490.064 0.064 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

6.08 mg/l

Sampled 2 Dec 2024, 23 months ago · 9 results banked

6789mg/l202420252026no sample published after Dec 202423 Jan 2024, 08:49: 7.47 mg/l5 Feb 2024, 09:03: 6.88 mg/l13 Jun 2024, 09:17: 7.08 mg/l8 Jul 2024, 09:53: 6.96 mg/l1 Aug 2024, 09:29: 6.57 mg/l2 Sep 2024, 08:58: 6.96 mg/l30 Oct 2024, 09:17: 6.09 mg/l13 Nov 2024, 09:48: 8.19 mg/l2 Dec 2024, 14:07: 6.08 mg/l
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:076.08 6.08 mg/l
13 Nov 2024, 09:488.19 8.19 mg/l
30 Oct 2024, 09:176.09 6.09 mg/l
2 Sep 2024, 08:586.96 6.96 mg/l
1 Aug 2024, 09:296.57 6.57 mg/l
8 Jul 2024, 09:536.96 6.96 mg/l
13 Jun 2024, 09:177.08 7.08 mg/l
5 Feb 2024, 09:036.88 6.88 mg/l
23 Jan 2024, 08:497.47 7.47 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.1 mg/l

Sampled 2 Dec 2024, 23 months ago · 9 results banked

0.050.10.150.2mg/l202420252026no sample published after Dec 202423 Jan 2024, 08:49: 0.12 mg/l5 Feb 2024, 09:03: 0.076 mg/l13 Jun 2024, 09:17: 0.071 mg/l8 Jul 2024, 09:53: 0.11 mg/l1 Aug 2024, 09:29: 0.15 mg/l2 Sep 2024, 08:58: 0.2 mg/l30 Oct 2024, 09:17: 0.097 mg/l13 Nov 2024, 09:48: 0.085 mg/l2 Dec 2024, 14:07: 0.1 mg/l
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:070.1 0.1 mg/l
13 Nov 2024, 09:480.085 0.085 mg/l
30 Oct 2024, 09:170.097 0.097 mg/l
2 Sep 2024, 08:580.2 0.2 mg/l
1 Aug 2024, 09:290.15 0.15 mg/l
8 Jul 2024, 09:530.11 0.11 mg/l
13 Jun 2024, 09:170.071 0.071 mg/l
5 Feb 2024, 09:030.076 0.076 mg/l
23 Jan 2024, 08:490.12 0.12 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

555 µS/cm

Sampled 2 Dec 2024, 23 months ago · 9 results banked

500600700800900µS/cm202420252026no sample published after Dec 202423 Jan 2024, 08:49: 587 µS/cm5 Feb 2024, 09:03: 559 µS/cm13 Jun 2024, 09:17: 836 µS/cm8 Jul 2024, 09:53: 579 µS/cm1 Aug 2024, 09:29: 637 µS/cm2 Sep 2024, 08:58: 606 µS/cm30 Oct 2024, 09:17: 567 µS/cm13 Nov 2024, 09:48: 612 µS/cm2 Dec 2024, 14:07: 555 µS/cm
Every result (9)
SampledResult as publishedReads as
2 Dec 2024, 14:07555 555 µS/cm
13 Nov 2024, 09:48612 612 µS/cm
30 Oct 2024, 09:17567 567 µS/cm
2 Sep 2024, 08:58606 606 µS/cm
1 Aug 2024, 09:29637 637 µS/cm
8 Jul 2024, 09:53579 579 µS/cm
13 Jun 2024, 09:17836 836 µS/cm
5 Feb 2024, 09:03559 559 µS/cm
23 Jan 2024, 08:49587 587 µS/cm

Everything measured here

19 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 19 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 9 Jan 2024 – Dec 2024 92.3% 2 Dec 2024
Oxygen, Dissolved as O2 9924 River water 9 Jan 2024 – Dec 2024 10.3 mg/l 2 Dec 2024
Temperature of Water 0076 River water 9 Jan 2024 – Dec 2024 10.4 °C 2 Dec 2024
pH 0061 River water 9 Jan 2024 – Dec 2024 7.82 2 Dec 2024
Ammoniacal Nitrogen as N 0111 River water 9 Jan 2024 – Dec 2024 below 0.03 mg/l 2 Dec 2024
Nitrate as N 0117 River water 9 Jan 2024 – Dec 2024 6.08 mg/l 2 Dec 2024
Orthophosphate, reactive as P 0180 River water 9 Jan 2024 – Dec 2024 0.1 mg/l 2 Dec 2024
Conductivity at 25 C 0077 River water 9 Jan 2024 – Dec 2024 555 µS/cm 2 Dec 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 9 Jan 2024 – Dec 2024 230 mg/l 2 Dec 2024
Ammonia un-ionised as N 0119 River water 9 Jan 2024 – Dec 2024 below 0.00037 mg/l 2 Dec 2024
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 9 Jan 2024 – Dec 2024 4.5 mg/l 2 Dec 2024
Chloride 0172 River water 9 Jan 2024 – Dec 2024 21 mg/l 2 Dec 2024
Flow Type 2896 River water 2 Jul 2024 – Dec 2024 Over-bank Flow 2 Dec 2024
Nitrite as N 0118 River water 9 Jan 2024 – Dec 2024 0.018 mg/l 2 Dec 2024
Nitrogen, Total as N 9686 River water 9 Jan 2024 – Dec 2024 6.8 mg/l 2 Dec 2024
Nitrogen, Total Oxidised as N 0116 River water 9 Jan 2024 – Dec 2024 6.1 mg/l 2 Dec 2024
No flow /No sample 7668 River water 1 May 2024 – May 2024 No flow/discharge at sampling point 28 May 2024
Phosphorus, Total as P 0348 River water 9 Jan 2024 – Dec 2024 0.14 mg/l 2 Dec 2024
Silica, reactive as SiO2 0182 River water 8 Feb 2024 – Dec 2024 10 mg/l 2 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.