Swill Brook at Pike Corner, Ashton Keynes
EA name: SWILL BROOK AT PIKE CORNER, ASHTON KEYNE (also listed as “SWILL BROOK AT PIKE CORNER, ASHTON KEYNES”)
Environment Agency sampling point TH-PUTR0086 · 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
- 17 Aug 2026, 13:2545 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 22 since 4 Jun 2024 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 404312, 193272As published, to the nearest 1 m. Open in a map
- River, by its own name
- Swill Brook
- River, by the map
- Swill BrookPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- Cricklade On the River Thames · 7.1 km along the river
- Nearest gauge upstream
- Oaksey On the Swill Brook · 6.1 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (22 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
65.1%
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 65.1 | 65.1% |
| 5 Jun 2026, 12:44 | 73.1 | 73.1% |
| 13 May 2026, 10:11 | 82.7 | 82.7% |
| 13 Apr 2026, 08:50 | 95.2 | 95.2% |
| 11 Feb 2026, 12:08 | 110 | 110% |
| 28 Jan 2026, 12:08 | 89.3 | 89.3% |
| 4 Dec 2025, 12:23 | 86.2 | 86.2% |
| 5 Nov 2025, 09:40 | 58.3 | 58.3% |
| 8 Apr 2025, 10:20 | 95.8 | 95.8% |
| 10 Mar 2025, 11:09 | 106.2 | 106.2% |
| 3 Feb 2025, 10:37 | 96.6 | 96.6% |
| 3 Jan 2025, 09:17 | 91.6 | 91.6% |
| 4 Dec 2024, 12:27 | 93.2 | 93.2% |
| 4 Nov 2024, 11:05 | 83.4 | 83.4% |
| 3 Oct 2024, 10:59 | 78.9 | 78.9% |
| 4 Sep 2024, 11:49 | 73.3 | 73.3% |
| 2 Aug 2024, 10:35 | 70.4 | 70.4% |
| 12 Jul 2024, 13:07 | 82.8 | 82.8% |
| 4 Jun 2024, 09:33 | 94.8 | 94.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6 mg/l
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 6 | 6 mg/l |
| 5 Jun 2026, 12:44 | 7.18 | 7.18 mg/l |
| 13 May 2026, 10:11 | 9.06 | 9.06 mg/l |
| 13 Apr 2026, 08:50 | 11 | 11 mg/l |
| 11 Feb 2026, 12:08 | 12.5 | 12.5 mg/l |
| 28 Jan 2026, 12:08 | 11 | 11 mg/l |
| 4 Dec 2025, 12:23 | 10.4 | 10.4 mg/l |
| 5 Nov 2025, 09:40 | 6.16 | 6.16 mg/l |
| 8 Apr 2025, 10:20 | 10.8 | 10.8 mg/l |
| 10 Mar 2025, 11:09 | 12.2 | 12.2 mg/l |
| 3 Feb 2025, 10:37 | 11.8 | 11.8 mg/l |
| 3 Jan 2025, 09:17 | 11.8 | 11.8 mg/l |
| 4 Dec 2024, 12:27 | 11 | 11 mg/l |
| 4 Nov 2024, 11:05 | 9.09 | 9.09 mg/l |
| 3 Oct 2024, 10:59 | 8.43 | 8.43 mg/l |
| 4 Sep 2024, 11:49 | 7.23 | 7.23 mg/l |
| 2 Aug 2024, 10:35 | 6.46 | 6.46 mg/l |
| 12 Jul 2024, 13:07 | 8.1 | 8.1 mg/l |
| 4 Jun 2024, 09:33 | 9.2 | 9.2 mg/l |
Water temperature
code 0076 · °C
19.2 °C
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 19.2 | 19.2 °C |
| 5 Jun 2026, 12:44 | 16.1 | 16.1 °C |
| 13 May 2026, 10:11 | 11.2 | 11.2 °C |
| 13 Apr 2026, 08:50 | 9.1 | 9.1 °C |
| 11 Feb 2026, 12:08 | 9.5 | 9.5 °C |
| 28 Jan 2026, 12:08 | 6.4 | 6.4 °C |
| 4 Dec 2025, 12:23 | 7.1 | 7.1 °C |
| 5 Nov 2025, 09:40 | 12.8 | 12.8 °C |
| 8 Apr 2025, 10:20 | 10.1 | 10.1 °C |
| 10 Mar 2025, 11:09 | 9.2 | 9.2 °C |
| 3 Feb 2025, 10:37 | 6.6 | 6.6 °C |
| 3 Jan 2025, 09:17 | 4.7 | 4.7 °C |
| 4 Dec 2024, 12:27 | 8.1 | 8.1 °C |
| 4 Nov 2024, 11:05 | 11.4 | 11.4 °C |
| 3 Oct 2024, 10:59 | 12.3 | 12.3 °C |
| 4 Sep 2024, 11:49 | 15.9 | 15.9 °C |
| 2 Aug 2024, 10:35 | 19.4 | 19.4 °C |
| 12 Jul 2024, 13:07 | 16.3 | 16.3 °C |
| 4 Jun 2024, 09:33 | 16.7 | 16.7 °C |
pH
code 0061
7.5
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 7.5 | 7.5 |
| 5 Jun 2026, 12:44 | 7.73 | 7.73 |
| 13 May 2026, 10:11 | 8.07 | 8.07 |
| 13 Apr 2026, 08:50 | 8.14 | 8.14 |
| 11 Feb 2026, 12:08 | 8.21 | 8.21 |
| 28 Jan 2026, 12:08 | 7.93 | 7.93 |
| 4 Dec 2025, 12:23 | 7.94 | 7.94 |
| 5 Nov 2025, 09:40 | 7.71 | 7.71 |
| 8 Apr 2025, 10:20 | 8.15 | 8.15 |
| 10 Mar 2025, 11:09 | 8.08 | 8.08 |
| 3 Feb 2025, 10:37 | 8.1 | 8.1 |
| 3 Jan 2025, 09:17 | 8.08 | 8.08 |
| 4 Dec 2024, 12:27 | 7.98 | 7.98 |
| 4 Nov 2024, 11:05 | 7.84 | 7.84 |
| 3 Oct 2024, 10:59 | 7.79 | 7.79 |
| 4 Sep 2024, 11:49 | 7.77 | 7.77 |
| 2 Aug 2024, 10:35 | 7.7 | 7.7 |
| 12 Jul 2024, 13:07 | 7.81 | 7.81 |
| 4 Jun 2024, 09:33 | 7.86 | 7.86 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.031 mg/l
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 0.031 | 0.031 mg/l |
| 5 Jun 2026, 12:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2026, 10:11 | 0.034 | 0.034 mg/l |
| 13 Apr 2026, 08:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2026, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2026, 12:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2026, 12:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2025, 12:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Nov 2025, 09:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Apr 2025, 10:20 | 0.031 | 0.031 mg/l |
| 10 Mar 2025, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jan 2025, 09:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Nov 2024, 11:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2024, 10:59 | 0.044 | 0.044 mg/l |
| 4 Sep 2024, 11:49 | 0.046 | 0.046 mg/l |
| 2 Aug 2024, 10:35 | 0.05 | 0.05 mg/l |
| 12 Jul 2024, 13:07 | 0.048 | 0.048 mg/l |
| 4 Jun 2024, 09:33 | 0.045 | 0.045 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.187 mg/l
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 0.187 | 0.187 mg/l |
| 5 Jun 2026, 12:44 | 0.245 | 0.245 mg/l |
| 13 May 2026, 10:11 | 1.08 | 1.08 mg/l |
| 13 Apr 2026, 08:50 | 3.48 | 3.48 mg/l |
| 18 Mar 2026, 13:25 | 5.68 | 5.68 mg/l |
| 11 Feb 2026, 12:08 | 4.69 | 4.69 mg/l |
| 28 Jan 2026, 12:08 | 5.09 | 5.09 mg/l |
| 4 Dec 2025, 12:23 | 5.88 | 5.88 mg/l |
| 5 Nov 2025, 09:40 | <0.196 | below 0.196 mg/l (not detected above this) |
| 8 Apr 2025, 10:20 | 3.39 | 3.39 mg/l |
| 10 Mar 2025, 11:09 | 5.59 | 5.59 mg/l |
| 3 Feb 2025, 10:37 | 5.29 | 5.29 mg/l |
| 3 Jan 2025, 09:17 | 5.29 | 5.29 mg/l |
| 4 Nov 2024, 11:05 | 5.78 | 5.78 mg/l |
| 3 Oct 2024, 10:59 | 1.88 | 1.88 mg/l |
| 4 Sep 2024, 11:49 | 0.294 | 0.294 mg/l |
| 2 Aug 2024, 10:35 | 0.523 | 0.523 mg/l |
| 12 Jul 2024, 13:07 | 2.58 | 2.58 mg/l |
| 4 Jun 2024, 09:33 | 2.86 | 2.86 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.056 mg/l
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 0.056 | 0.056 mg/l |
| 5 Jun 2026, 12:44 | 0.033 | 0.033 mg/l |
| 13 May 2026, 10:11 | 0.015 | 0.015 mg/l |
| 13 Apr 2026, 08:50 | 0.014 | 0.014 mg/l |
| 18 Mar 2026, 13:25 | 0.021 | 0.021 mg/l |
| 11 Feb 2026, 12:08 | 0.038 | 0.038 mg/l |
| 28 Jan 2026, 12:08 | 0.034 | 0.034 mg/l |
| 4 Dec 2025, 12:23 | 0.059 | 0.059 mg/l |
| 5 Nov 2025, 09:40 | 0.03 | 0.03 mg/l |
| 8 Apr 2025, 10:20 | 0.015 | 0.015 mg/l |
| 10 Mar 2025, 11:09 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Feb 2025, 10:37 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Jan 2025, 09:17 | 0.017 | 0.017 mg/l |
| 4 Nov 2024, 11:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Oct 2024, 10:59 | 0.039 | 0.039 mg/l |
| 4 Sep 2024, 11:49 | 0.064 | 0.064 mg/l |
| 2 Aug 2024, 10:35 | 0.067 | 0.067 mg/l |
| 12 Jul 2024, 13:07 | 0.032 | 0.032 mg/l |
| 4 Jun 2024, 09:33 | 0.01 | 0.01 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
403 µS/cm
Sampled 6 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 12:05 | 403 | 403 µS/cm |
| 5 Jun 2026, 12:44 | 418 | 418 µS/cm |
| 13 May 2026, 10:11 | 451 | 451 µS/cm |
| 13 Apr 2026, 08:50 | 486 | 486 µS/cm |
| 11 Feb 2026, 12:08 | 444 | 444 µS/cm |
| 28 Jan 2026, 12:08 | 461 | 461 µS/cm |
| 4 Dec 2025, 12:23 | 475 | 475 µS/cm |
| 5 Nov 2025, 09:40 | 483 | 483 µS/cm |
| 8 Apr 2025, 10:20 | 500 | 500 µS/cm |
| 10 Mar 2025, 11:09 | 540 | 540 µS/cm |
| 3 Feb 2025, 10:37 | 549 | 549 µS/cm |
| 3 Jan 2025, 09:17 | 548 | 548 µS/cm |
| 4 Dec 2024, 12:27 | 545 | 545 µS/cm |
| 4 Nov 2024, 11:05 | 568 | 568 µS/cm |
| 3 Oct 2024, 10:59 | 400 | 400 µS/cm |
| 4 Sep 2024, 11:49 | 423 | 423 µS/cm |
| 2 Aug 2024, 10:35 | 436 | 436 µS/cm |
| 12 Jul 2024, 13:07 | 480 | 480 µS/cm |
| 4 Jun 2024, 09:33 | 419 | 419 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 19 | Jun 2024 – Jul 2026 | 65.1% 6 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Jun 2024 – Jul 2026 | 6 mg/l 6 Jul 2026 |
| Temperature of Water 0076 | River water | 19 | Jun 2024 – Jul 2026 | 19.2 °C 6 Jul 2026 |
| pH 0061 | River water | 19 | Jun 2024 – Jul 2026 | 7.5 6 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Jun 2024 – Jul 2026 | 0.031 mg/l 6 Jul 2026 |
| Nitrate as N 0117 | River water | 19 | Jun 2024 – Jul 2026 | 0.187 mg/l 6 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Jun 2024 – Jul 2026 | 0.056 mg/l 6 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Jun 2024 – Jul 2026 | 403 µS/cm 6 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Jun 2024 – Jul 2026 | 170 mg/l 6 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 18 | Jun 2024 – Jul 2026 | 0.00036 mg/l 6 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 19 | Jun 2024 – Jul 2026 | below 3 mg/l 6 Jul 2026 |
| Nitrite as N 0118 | River water | 19 | Jun 2024 – Jul 2026 | 0.013 mg/l 6 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Jun 2024 – Jul 2026 | 0.2 mg/l 6 Jul 2026 |
| No flow /No sample 7668 | River water | 2 | Oct 2025 – Aug 2026 | No flow/discharge at sampling point 17 Aug 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.