Cotswold Gate A419
EA name: COTSWOLD GATE A419 (also listed as “RSN0474 COTSWOLD GATE A419”)
Environment Agency sampling point TH-RSN0474 · 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 Jul 2026, 09:363 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 19 since 22 Jan 2025 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 409584, 194925As 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 ChurnPlaced by position alone, on a line whose map name differs from its own, 1 m from the line.
- Next gauge downstream
- Hannington Bridge On the River Thames · 12 km along the river
- Nearest gauge upstream
- Cerney Wick On the River Churn · 2.9 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
52.8%
Sampled 2 Jul 2026, 3 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 52.8 | 52.8% |
| 18 Jun 2026, 09:47 | 60 | 60% |
| 7 May 2026, 09:54 | 82.8 | 82.8% |
| 23 Apr 2026, 10:30 | 99.4 | 99.4% |
| 9 Feb 2026, 11:42 | 98.7 | 98.7% |
| 26 Jan 2026, 10:16 | 86 | 86% |
| 4 Dec 2025, 09:13 | 87.7 | 87.7% |
| 19 Nov 2025, 13:16 | 85.2 | 85.2% |
| 22 Oct 2025, 13:42 | 42 | 42% |
| 18 Sep 2025, 08:40 | 56.7 | 56.7% |
| 27 Aug 2025, 10:51 | 49.7 | 49.7% |
| 17 Jul 2025, 09:39 | 58.7 | 58.7% |
| 24 Jun 2025, 11:25 | 79 | 79% |
| 14 May 2025, 11:33 | 87.8 | 87.8% |
| 28 Apr 2025, 11:40 | 96.2 | 96.2% |
| 12 Mar 2025, 11:13 | 100.6 | 100.6% |
| 10 Feb 2025, 12:04 | 96.9 | 96.9% |
| 22 Jan 2025, 11:54 | 97.5 | 97.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.19 mg/l
Sampled 2 Jul 2026, 3 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 5.19 | 5.19 mg/l |
| 18 Jun 2026, 09:47 | 5.87 | 5.87 mg/l |
| 7 May 2026, 09:54 | 9.24 | 9.24 mg/l |
| 23 Apr 2026, 10:30 | 11.3 | 11.3 mg/l |
| 9 Feb 2026, 11:42 | 11.5 | 11.5 mg/l |
| 26 Jan 2026, 10:16 | 10.3 | 10.3 mg/l |
| 4 Dec 2025, 09:13 | 10.4 | 10.4 mg/l |
| 19 Nov 2025, 13:16 | 10.2 | 10.2 mg/l |
| 22 Oct 2025, 13:42 | 4.56 | 4.56 mg/l |
| 18 Sep 2025, 08:40 | 5.59 | 5.59 mg/l |
| 27 Aug 2025, 10:51 | 4.95 | 4.95 mg/l |
| 17 Jul 2025, 09:39 | 5.6 | 5.6 mg/l |
| 24 Jun 2025, 11:25 | 7.69 | 7.69 mg/l |
| 14 May 2025, 11:33 | 8.89 | 8.89 mg/l |
| 28 Apr 2025, 11:40 | 8.99 | 8.99 mg/l |
| 12 Mar 2025, 11:13 | 12.1 | 12.1 mg/l |
| 10 Feb 2025, 12:04 | 11.9 | 11.9 mg/l |
| 22 Jan 2025, 11:54 | 11.9 | 11.9 mg/l |
Water temperature
code 0076 · °C
16.1 °C
Sampled 2 Jul 2026, 3 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 16.1 | 16.1 °C |
| 18 Jun 2026, 09:47 | 16.3 | 16.3 °C |
| 7 May 2026, 09:54 | 10.4 | 10.4 °C |
| 23 Apr 2026, 10:30 | 9.8 | 9.8 °C |
| 9 Feb 2026, 11:42 | 8.7 | 8.7 °C |
| 26 Jan 2026, 10:16 | 7.3 | 7.3 °C |
| 4 Dec 2025, 09:13 | 7.8 | 7.8 °C |
| 19 Nov 2025, 13:16 | 7.5 | 7.5 °C |
| 22 Oct 2025, 13:42 | 11.6 | 11.6 °C |
| 18 Sep 2025, 08:40 | 15.9 | 15.9 °C |
| 27 Aug 2025, 10:51 | 15.4 | 15.4 °C |
| 17 Jul 2025, 09:39 | 17.5 | 17.5 °C |
| 24 Jun 2025, 11:25 | 16.5 | 16.5 °C |
| 14 May 2025, 11:33 | 14.7 | 14.7 °C |
| 28 Apr 2025, 11:40 | 18.5 | 18.5 °C |
| 12 Mar 2025, 11:13 | 7.2 | 7.2 °C |
| 10 Feb 2025, 12:04 | 6.6 | 6.6 °C |
| 22 Jan 2025, 11:54 | 6.8 | 6.8 °C |
pH
code 0061
7.6
Sampled 2 Jul 2026, 3 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 7.6 | 7.6 |
| 18 Jun 2026, 09:47 | 7.61 | 7.61 |
| 7 May 2026, 09:54 | 8.19 | 8.19 |
| 23 Apr 2026, 10:30 | 8.16 | 8.16 |
| 9 Feb 2026, 11:42 | 8.11 | 8.11 |
| 26 Jan 2026, 10:16 | 7.97 | 7.97 |
| 4 Dec 2025, 09:13 | 8.04 | 8.04 |
| 19 Nov 2025, 13:16 | 8.01 | 8.01 |
| 22 Oct 2025, 13:42 | 7.52 | 7.52 |
| 18 Sep 2025, 08:40 | 7.65 | 7.65 |
| 27 Aug 2025, 10:51 | 7.51 | 7.51 |
| 17 Jul 2025, 09:39 | 7.67 | 7.67 |
| 24 Jun 2025, 11:25 | 7.7 | 7.7 |
| 14 May 2025, 11:33 | 8.04 | 8.04 |
| 28 Apr 2025, 11:40 | 7.97 | 7.97 |
| 12 Mar 2025, 11:13 | 8.21 | 8.21 |
| 10 Feb 2025, 12:04 | 8.22 | 8.22 |
| 22 Jan 2025, 11:54 | 8.3 | 8.3 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.07 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 0.07 | 0.07 mg/l |
| 18 Jun 2026, 09:47 | 0.04 | 0.04 mg/l |
| 7 May 2026, 09:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Apr 2026, 10:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2026, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jan 2026, 10:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2025, 09:13 | 0.04 | 0.04 mg/l |
| 19 Nov 2025, 13:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Oct 2025, 13:42 | 0.13 | 0.13 mg/l |
| 18 Sep 2025, 08:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Aug 2025, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2025, 09:39 | 0.037 | 0.037 mg/l |
| 24 Jun 2025, 11:25 | 0.31 | 0.31 mg/l |
| 14 May 2025, 11:33 | 0.11 | 0.11 mg/l |
| 28 Apr 2025, 11:40 | 0.05 | 0.05 mg/l |
| 12 Mar 2025, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2025, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jan 2025, 11:54 | 0.019 | 0.019 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.26 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 1.26 | 1.26 mg/l |
| 18 Jun 2026, 09:47 | 1.38 | 1.38 mg/l |
| 7 May 2026, 09:54 | 3.58 | 3.58 mg/l |
| 23 Apr 2026, 10:30 | 4.59 | 4.59 mg/l |
| 18 Mar 2026, 12:53 | 5 | 5 mg/l |
| 9 Feb 2026, 11:42 | 4.09 | 4.09 mg/l |
| 26 Jan 2026, 10:16 | 4.89 | 4.89 mg/l |
| 4 Dec 2025, 09:13 | 4.59 | 4.59 mg/l |
| 19 Nov 2025, 13:16 | 4.8 | 4.8 mg/l |
| 22 Oct 2025, 13:42 | 1.18 | 1.18 mg/l |
| 18 Sep 2025, 08:40 | 1.49 | 1.49 mg/l |
| 27 Aug 2025, 10:51 | 1.75 | 1.75 mg/l |
| 17 Jul 2025, 09:39 | 1.97 | 1.97 mg/l |
| 24 Jun 2025, 11:25 | 1.19 | 1.19 mg/l |
| 14 May 2025, 11:33 | 3.58 | 3.58 mg/l |
| 28 Apr 2025, 11:40 | 4.09 | 4.09 mg/l |
| 12 Mar 2025, 11:13 | 5.2 | 5.2 mg/l |
| 10 Feb 2025, 12:04 | 5 | 5 mg/l |
| 22 Jan 2025, 11:54 | 5.4 | 5.4 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.29 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 0.29 | 0.29 mg/l |
| 18 Jun 2026, 09:47 | 0.2 | 0.2 mg/l |
| 7 May 2026, 09:54 | 0.042 | 0.042 mg/l |
| 23 Apr 2026, 10:30 | 0.031 | 0.031 mg/l |
| 18 Mar 2026, 12:53 | 0.028 | 0.028 mg/l |
| 9 Feb 2026, 11:42 | 0.02 | 0.02 mg/l |
| 26 Jan 2026, 10:16 | 0.028 | 0.028 mg/l |
| 4 Dec 2025, 09:13 | 0.043 | 0.043 mg/l |
| 19 Nov 2025, 13:16 | 0.063 | 0.063 mg/l |
| 22 Oct 2025, 13:42 | 0.33 | 0.33 mg/l |
| 18 Sep 2025, 08:40 | 0.38 | 0.38 mg/l |
| 27 Aug 2025, 10:51 | 0.6 | 0.6 mg/l |
| 17 Jul 2025, 09:39 | 0.37 | 0.37 mg/l |
| 24 Jun 2025, 11:25 | 0.18 | 0.18 mg/l |
| 14 May 2025, 11:33 | 0.064 | 0.064 mg/l |
| 28 Apr 2025, 11:40 | 0.087 | 0.087 mg/l |
| 12 Mar 2025, 11:13 | 0.018 | 0.018 mg/l |
| 10 Feb 2025, 12:04 | 0.025 | 0.025 mg/l |
| 22 Jan 2025, 11:54 | 0.026 | 0.026 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
619 µS/cm
Sampled 2 Jul 2026, 3 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 09:36 | 619 | 619 µS/cm |
| 18 Jun 2026, 09:47 | 522 | 522 µS/cm |
| 7 May 2026, 09:54 | 487 | 487 µS/cm |
| 23 Apr 2026, 10:30 | 485 | 485 µS/cm |
| 9 Feb 2026, 11:42 | 496 | 496 µS/cm |
| 26 Jan 2026, 10:16 | 517 | 517 µS/cm |
| 4 Dec 2025, 09:13 | 533 | 533 µS/cm |
| 19 Nov 2025, 13:16 | 538 | 538 µS/cm |
| 22 Oct 2025, 13:42 | 622 | 622 µS/cm |
| 18 Sep 2025, 08:40 | 609 | 609 µS/cm |
| 27 Aug 2025, 10:51 | 741 | 741 µS/cm |
| 17 Jul 2025, 09:39 | 663 | 663 µS/cm |
| 24 Jun 2025, 11:25 | 484 | 484 µS/cm |
| 14 May 2025, 11:33 | 477 | 477 µS/cm |
| 28 Apr 2025, 11:40 | 520 | 520 µS/cm |
| 12 Mar 2025, 11:13 | 509 | 509 µS/cm |
| 10 Feb 2025, 12:04 | 543 | 543 µS/cm |
| 22 Jan 2025, 11:54 | 516 | 516 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
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 18 | Jan 2025 – Jul 2026 | 52.8% 2 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 18 | Jan 2025 – Jul 2026 | 5.19 mg/l 2 Jul 2026 |
| Temperature of Water 0076 | River water | 18 | Jan 2025 – Jul 2026 | 16.1 °C 2 Jul 2026 |
| pH 0061 | River water | 18 | Jan 2025 – Jul 2026 | 7.6 2 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Jan 2025 – Jul 2026 | 0.07 mg/l 2 Jul 2026 |
| Nitrate as N 0117 | River water | 19 | Jan 2025 – Jul 2026 | 1.26 mg/l 2 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Jan 2025 – Jul 2026 | 0.29 mg/l 2 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 18 | Jan 2025 – Jul 2026 | 619 µS/cm 2 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Jan 2025 – Jul 2026 | 240 mg/l 2 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 18 | Jan 2025 – Jul 2026 | 0.00081 mg/l 2 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 19 | Jan 2025 – Jul 2026 | 2.2 mg/l 2 Jul 2026 |
| Chloride 0172 | River water | 19 | Jan 2025 – Jul 2026 | 30 mg/l 2 Jul 2026 |
| Flow Type 2896 | River water | 17 | Jan 2025 – Jul 2026 | Moderate Flow 2 Jul 2026 |
| Nitrite as N 0118 | River water | 19 | Jan 2025 – Jul 2026 | 0.038 mg/l 2 Jul 2026 |
| Nitrogen, Total as N 9686 | River water | 1 | Jul 2026 – Jul 2026 | 1.8 mg/l 2 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Jan 2025 – Jul 2026 | 1.3 mg/l 2 Jul 2026 |
| Phosphorus, Total as P 0348 | River water | 19 | Jan 2025 – Jul 2026 | 0.32 mg/l 2 Jul 2026 |
| Silica, reactive as SiO2 0182 | River water | 19 | Jan 2025 – Jul 2026 | 11 mg/l 2 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 8 | Dec 2025 – Jul 2026 | 7.4 mg/l 2 Jul 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.