Upstream of Deans Farm

EA name: U/S DEANS FARM (also listed as “RSN1774 U/S DEANS FARM”)
Environment Agency sampling point TH-RSN1774 · 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
28 Sep 2026, 12:3410 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
9 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) · results completed 30 Sep 2026
Where
National Grid 416721, 208431As 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
River LeachPlaced by position alone (the only river line close by), 0 m from the line.
Next gauge downstream
Lechlade On the River Leach · 17 km along the river (the path rests on a repair to the map)
Why it was sampled
Monitoring (national agency policy) (9 samples)

Results here were completed a median of 2 days after the sample was taken (2 to 2 days, 4 samples). 7 visits found no water to sample (recorded as “No flow”).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

138.2%

Sampled 25 Feb 2026, 7 months ago · 2 results banked

100110120130140%20242025202628 Jan 2026, 11:37: 101.9%25 Feb 2026, 13:17: 138.2%
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:17138.2 138.2%
28 Jan 2026, 11:37101.9 101.9%

Dissolved oxygen

as O2 · code 9924 · mg/l

15.1 mg/l

Sampled 25 Feb 2026, 7 months ago · 2 results banked

111213141516mg/l20242025202628 Jan 2026, 11:37: 11.9 mg/l25 Feb 2026, 13:17: 15.1 mg/l
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:1715.1 15.1 mg/l
28 Jan 2026, 11:3711.9 11.9 mg/l

Water temperature

code 0076 · °C

11.4 °C

Sampled 25 Feb 2026, 7 months ago · 2 results banked

89101112°C20242025202628 Jan 2026, 11:37: 8.6 °C25 Feb 2026, 13:17: 11.4 °C
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:1711.4 11.4 °C
28 Jan 2026, 11:378.6 8.6 °C

pH

code 0061

8

Sampled 25 Feb 2026, 7 months ago · 2 results banked

7.77.87.9820242025202628 Jan 2026, 11:37: 7.7425 Feb 2026, 13:17: 8
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:178 8
28 Jan 2026, 11:377.74 7.74

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.002 mg/l (not detected above this)

Sampled 25 Feb 2026, 7 months ago · 2 results banked

-0.500.51mg/l20242025202628 Jan 2026, 11:37: below 0.002 mg/l (not detected above this)25 Feb 2026, 13:17: below 0.002 mg/l (not detected above this)
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:17<0.002 below 0.002 mg/l (not detected above this)
28 Jan 2026, 11:37<0.002 below 0.002 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

8.7 mg/l

Sampled 25 Feb 2026, 7 months ago · 2 results banked

8.68.899.2mg/l20242025202628 Jan 2026, 11:37: 9.1 mg/l25 Feb 2026, 13:17: 8.7 mg/l
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:178.7 8.7 mg/l
28 Jan 2026, 11:379.1 9.1 mg/l

Phosphate

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

0.004 mg/l

Sampled 25 Feb 2026, 7 months ago · 2 results banked

0.0040.0060.0080.010.012mg/l20242025202628 Jan 2026, 11:37: 0.011 mg/l25 Feb 2026, 13:17: 0.004 mg/l
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:170.004 0.004 mg/l
28 Jan 2026, 11:370.011 0.011 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

562 µS/cm

Sampled 25 Feb 2026, 7 months ago · 2 results banked

560562.5565567.5570572.5µS/cm20242025202628 Jan 2026, 11:37: 572 µS/cm25 Feb 2026, 13:17: 562 µS/cm
Every result (2)
SampledResult as publishedReads as
25 Feb 2026, 13:17562 562 µS/cm
28 Jan 2026, 11:37572 572 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 2 Jan 2026 – Feb 2026 138.2% 25 Feb 2026
Oxygen, Dissolved as O2 9924 River water 2 Jan 2026 – Feb 2026 15.1 mg/l 25 Feb 2026
Temperature of Water 0076 River water 2 Jan 2026 – Feb 2026 11.4 °C 25 Feb 2026
pH 0061 River water 2 Jan 2026 – Feb 2026 8 25 Feb 2026
Ammoniacal Nitrogen as N 0111 River water 2 Jan 2026 – Feb 2026 below 0.002 mg/l 25 Feb 2026
Nitrate as N 0117 River water 2 Jan 2026 – Feb 2026 8.7 mg/l 25 Feb 2026
Orthophosphate, reactive as P 0180 River water 2 Jan 2026 – Feb 2026 0.004 mg/l 25 Feb 2026
Conductivity at 25 C 0077 River water 2 Jan 2026 – Feb 2026 562 µS/cm 25 Feb 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 2 Jan 2026 – Feb 2026 240 mg/l 25 Feb 2026
Ammonia un-ionised as N 0119 River water 2 Jan 2026 – Feb 2026 below 0.00004 mg/l 25 Feb 2026
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 2 Jan 2026 – Feb 2026 1.2 mg/l 25 Feb 2026
Chloride 0172 River water 2 Jan 2026 – Feb 2026 12 mg/l 25 Feb 2026
Flow Type 2896 River water 9 Jan 2026 – Sep 2026 Dry 28 Sep 2026
Nitrite as N 0118 River water 2 Jan 2026 – Feb 2026 0.0036 mg/l 25 Feb 2026
Nitrogen, Total Oxidised as N 0116 River water 2 Jan 2026 – Feb 2026 8.7 mg/l 25 Feb 2026
No flow /No sample 7668 River water 7 Mar 2026 – Sep 2026 No flow/discharge at sampling point 28 Sep 2026
Phosphorus, Total as P 0348 River water 2 Jan 2026 – Feb 2026 below 0.01 mg/l 25 Feb 2026
Silica, reactive as SiO2 0182 River water 2 Jan 2026 – Feb 2026 3.9 mg/l 25 Feb 2026
Solids, Suspended at 105 C 0135 River water 2 Jan 2026 – Feb 2026 3.9 mg/l 25 Feb 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.