Swaton Drains
EA name: SWATON DRAINS
Environment Agency sampling point AN-SWANDRNS · 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
- 7 Sep 2026, 11:0024 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 23 since 11 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 513145, 339272As 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
- An unnamed streamPlaced by position alone (the only river line close by), 4 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Environmental monitoring statutory (EU directives) (23 samples)
11 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
83.9%
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | 83.9 | 83.9% |
| 12 Mar 2026, 12:25 | 95.7 | 95.7% |
| 6 Feb 2026, 12:53 | 85.6 | 85.6% |
| 6 Jan 2026, 10:23 | 71.5 | 71.5% |
| 1 Dec 2025, 11:10 | 66.2 | 66.2% |
| 5 Nov 2025, 12:41 | 68.2 | 68.2% |
| 4 Apr 2025, 12:28 | 189.7 | 189.7% |
| 21 Mar 2025, 14:32 | 110.7 | 110.7% |
| 20 Feb 2025, 10:09 | 88.5 | 88.5% |
| 9 Jan 2025, 10:11 | 79.1 | 79.1% |
| 24 Oct 2024, 12:28 | 63.7 | 63.7% |
| 11 Jun 2024, 11:10 | 45.3 | 45.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.13 mg/l
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | 9.13 | 9.13 mg/l |
| 12 Mar 2026, 12:25 | 10.9 | 10.9 mg/l |
| 6 Feb 2026, 12:53 | 10.7 | 10.7 mg/l |
| 6 Jan 2026, 10:23 | 10.1 | 10.1 mg/l |
| 1 Dec 2025, 11:10 | 7.81 | 7.81 mg/l |
| 5 Nov 2025, 12:41 | 7.15 | 7.15 mg/l |
| 4 Apr 2025, 12:28 | 20.1 | 20.1 mg/l |
| 21 Mar 2025, 14:32 | 12.3 | 12.3 mg/l |
| 20 Feb 2025, 10:09 | 10.6 | 10.6 mg/l |
| 9 Jan 2025, 10:11 | 10.6 | 10.6 mg/l |
| 24 Oct 2024, 12:28 | 6.96 | 6.96 mg/l |
| 11 Jun 2024, 11:10 | 4.98 | 4.98 mg/l |
Water temperature
code 0076 · °C
11.5 °C
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | 11.5 | 11.5 °C |
| 12 Mar 2026, 12:25 | 9.4 | 9.4 °C |
| 6 Feb 2026, 12:53 | 5.9 | 5.9 °C |
| 6 Jan 2026, 10:23 | 1 | 1 °C |
| 1 Dec 2025, 11:10 | 8.1 | 8.1 °C |
| 5 Nov 2025, 12:41 | 13.1 | 13.1 °C |
| 4 Apr 2025, 12:28 | 12.6 | 12.6 °C |
| 21 Mar 2025, 14:32 | 10.7 | 10.7 °C |
| 20 Feb 2025, 10:09 | 7.6 | 7.6 °C |
| 9 Jan 2025, 10:11 | 3.1 | 3.1 °C |
| 24 Oct 2024, 12:28 | 11.3 | 11.3 °C |
| 11 Jun 2024, 11:10 | 11 | 11 °C |
pH
code 0061
7.88
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | 7.88 | 7.88 |
| 12 Mar 2026, 12:25 | 7.95 | 7.95 |
| 6 Feb 2026, 12:53 | 7.75 | 7.75 |
| 6 Jan 2026, 10:23 | 8.32 | 8.32 |
| 1 Dec 2025, 11:10 | 7.59 | 7.59 |
| 5 Nov 2025, 12:41 | 7.87 | 7.87 |
| 4 Apr 2025, 12:28 | 8.34 | 8.34 |
| 21 Mar 2025, 14:32 | 8.07 | 8.07 |
| 20 Feb 2025, 10:09 | 7.94 | 7.94 |
| 9 Jan 2025, 10:11 | 7.81 | 7.81 |
| 24 Oct 2024, 12:28 | 7.68 | 7.68 |
| 11 Jun 2024, 11:10 | 7.74 | 7.74 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2026, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2026, 12:53 | 0.09 | 0.09 mg/l |
| 6 Jan 2026, 10:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Dec 2025, 11:10 | 0.93 | 0.93 mg/l |
| 5 Nov 2025, 12:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2025, 12:28 | 0.037 | 0.037 mg/l |
| 21 Mar 2025, 14:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2025, 10:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jan 2025, 10:11 | 2.6 | 2.6 mg/l |
| 24 Oct 2024, 12:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jun 2024, 11:10 | 0.15 | 0.15 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | <0.196 | below 0.196 mg/l (not detected above this) |
| 12 Mar 2026, 12:25 | 5.99 | 5.99 mg/l |
| 6 Feb 2026, 12:53 | 3.69 | 3.69 mg/l |
| 6 Jan 2026, 10:23 | 11 | 11 mg/l |
| 1 Dec 2025, 11:10 | 24.9 | 24.9 mg/l |
| 5 Nov 2025, 12:41 | 18.8 | 18.8 mg/l |
| 4 Apr 2025, 12:28 | 2.5 | 2.5 mg/l |
| 21 Mar 2025, 14:32 | 4.19 | 4.19 mg/l |
| 20 Feb 2025, 10:09 | 5.29 | 5.29 mg/l |
| 9 Jan 2025, 10:11 | 6.04 | 6.04 mg/l |
| 24 Oct 2024, 12:28 | 5.58 | 5.58 mg/l |
| 11 Jun 2024, 11:10 | 0.336 | 0.336 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.027 mg/l
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | 0.027 | 0.027 mg/l |
| 12 Mar 2026, 12:25 | 0.065 | 0.065 mg/l |
| 6 Feb 2026, 12:53 | 0.059 | 0.059 mg/l |
| 6 Jan 2026, 10:23 | 0.056 | 0.056 mg/l |
| 1 Dec 2025, 11:10 | 0.04 | 0.04 mg/l |
| 5 Nov 2025, 12:41 | 0.082 | 0.082 mg/l |
| 4 Apr 2025, 12:28 | 0.018 | 0.018 mg/l |
| 21 Mar 2025, 14:32 | 0.037 | 0.037 mg/l |
| 20 Feb 2025, 10:09 | 0.04 | 0.04 mg/l |
| 9 Jan 2025, 10:11 | 0.11 | 0.11 mg/l |
| 24 Oct 2024, 12:28 | 0.035 | 0.035 mg/l |
| 11 Jun 2024, 11:10 | 0.13 | 0.13 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1106 µS/cm
Sampled 17 Apr 2026, 5 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Apr 2026, 13:04 | 1106 | 1106 µS/cm |
| 12 Mar 2026, 12:25 | 958 | 958 µS/cm |
| 6 Feb 2026, 12:53 | 380 | 380 µS/cm |
| 6 Jan 2026, 10:23 | 988 | 988 µS/cm |
| 1 Dec 2025, 11:10 | 883 | 883 µS/cm |
| 5 Nov 2025, 12:41 | 1025 | 1025 µS/cm |
| 4 Apr 2025, 12:28 | 1184 | 1184 µS/cm |
| 21 Mar 2025, 14:32 | 1219 | 1219 µS/cm |
| 20 Feb 2025, 10:09 | 1139 | 1139 µS/cm |
| 9 Jan 2025, 10:11 | 962 | 962 µS/cm |
| 24 Oct 2024, 12:28 | 1091 | 1091 µS/cm |
| 11 Jun 2024, 11:10 | 1143 | 1143 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 12 | Jun 2024 – Apr 2026 | 83.9% 17 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Jun 2024 – Apr 2026 | 9.13 mg/l 17 Apr 2026 |
| Temperature of Water 0076 | River water | 12 | Jun 2024 – Apr 2026 | 11.5 °C 17 Apr 2026 |
| pH 0061 | River water | 12 | Jun 2024 – Apr 2026 | 7.88 17 Apr 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 12 | Jun 2024 – Apr 2026 | below 0.03 mg/l 17 Apr 2026 |
| Nitrate as N 0117 | River water | 12 | Jun 2024 – Apr 2026 | below 0.196 mg/l 17 Apr 2026 |
| Orthophosphate, reactive as P 0180 | River water | 12 | Jun 2024 – Apr 2026 | 0.027 mg/l 17 Apr 2026 |
| Conductivity at 25 C 0077 | River water | 12 | Jun 2024 – Apr 2026 | 1106 µS/cm 17 Apr 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Jun 2024 – Apr 2026 | 300 mg/l 17 Apr 2026 |
| Ammonia un-ionised as N 0119 | River water | 12 | Jun 2024 – Apr 2026 | below 0.00047 mg/l 17 Apr 2026 |
| Nitrite as N 0118 | River water | 12 | Jun 2024 – Apr 2026 | below 0.004 mg/l 17 Apr 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 12 | Jun 2024 – Apr 2026 | below 0.2 mg/l 17 Apr 2026 |
| No flow /No sample 7668 | River water | 11 | Jul 2024 – Sep 2026 | No flow/discharge at sampling point 7 Sep 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.