Swinnel Brook tributary upstream of Commerce Street
EA name: SWINNEL BROOK TRIB U/S COMMERCE STREET (also listed as “RSN2220 SWINNEL BROOK TRIB U/S COMMERCE STREET”)
Environment Agency sampling point NW-RSN2220 · 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
- 18 Dec 2025, 10:169 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 30 Sep 2026 and had nothing newer.
- Samples banked
- 9 since 7 Apr 2025 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 377972, 423612As published, to the nearest 1 m. Open in a map
- River, by its own name
- Swinnel Brook
- River, by the map
- Clough Bottom BrookOn a small stream traced into the river its name gives, 4 m from the line.
- Next gauge downstream
- Little Bridge On the Ogden Brook · 3.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (9 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.3%
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 101.3 | 101.3% |
| 28 Nov 2025, 10:09 | 98.8 | 98.8% |
| 16 Oct 2025, 10:25 | 96.7 | 96.7% |
| 18 Sep 2025, 12:13 | 100.6 | 100.6% |
| 18 Aug 2025, 10:58 | 85.2 | 85.2% |
| 16 Jul 2025, 13:21 | 98.4 | 98.4% |
| 27 Jun 2025, 13:29 | 96.7 | 96.7% |
| 6 May 2025, 14:27 | 102.2 | 102.2% |
| 7 Apr 2025, 10:14 | 99.8 | 99.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.1 mg/l
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 12.1 | 12.1 mg/l |
| 28 Nov 2025, 10:09 | 12 | 12 mg/l |
| 16 Oct 2025, 10:25 | 10.7 | 10.7 mg/l |
| 18 Sep 2025, 12:13 | 10.2 | 10.2 mg/l |
| 18 Aug 2025, 10:58 | 8.4 | 8.4 mg/l |
| 16 Jul 2025, 13:21 | 9.19 | 9.19 mg/l |
| 27 Jun 2025, 13:29 | 9.35 | 9.35 mg/l |
| 6 May 2025, 14:27 | 10.2 | 10.2 mg/l |
| 7 Apr 2025, 10:14 | 11.9 | 11.9 mg/l |
Water temperature
code 0076 · °C
7.6 °C
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 7.6 | 7.6 °C |
| 28 Nov 2025, 10:09 | 7 | 7 °C |
| 16 Oct 2025, 10:25 | 10.7 | 10.7 °C |
| 18 Sep 2025, 12:13 | 14.8 | 14.8 °C |
| 18 Aug 2025, 10:58 | 15.9 | 15.9 °C |
| 16 Jul 2025, 13:21 | 18.5 | 18.5 °C |
| 27 Jun 2025, 13:29 | 16.8 | 16.8 °C |
| 6 May 2025, 14:27 | 15.5 | 15.5 °C |
| 7 Apr 2025, 10:14 | 7.5 | 7.5 °C |
pH
code 0061
7.49
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 7.49 | 7.49 |
| 28 Nov 2025, 10:09 | 7.73 | 7.73 |
| 16 Oct 2025, 10:25 | 7.69 | 7.69 |
| 18 Sep 2025, 12:13 | 7.54 | 7.54 |
| 18 Aug 2025, 10:58 | 7.67 | 7.67 |
| 16 Jul 2025, 13:21 | 7.72 | 7.72 |
| 27 Jun 2025, 13:29 | 7.98 | 7.98 |
| 6 May 2025, 14:27 | 7.67 | 7.67 |
| 7 Apr 2025, 10:14 | 7.8 | 7.8 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.1 mg/l
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 0.1 | 0.1 mg/l |
| 28 Nov 2025, 10:09 | 0.14 | 0.14 mg/l |
| 16 Oct 2025, 10:25 | 0.02 | 0.02 mg/l |
| 18 Sep 2025, 12:13 | 0.073 | 0.073 mg/l |
| 18 Aug 2025, 10:58 | 0.043 | 0.043 mg/l |
| 16 Jul 2025, 13:21 | 0.05 | 0.05 mg/l |
| 27 Jun 2025, 13:29 | 0.018 | 0.018 mg/l |
| 6 May 2025, 14:27 | 0.032 | 0.032 mg/l |
| 7 Apr 2025, 10:14 | 0.04 | 0.04 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.669 mg/l
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 0.669 | 0.669 mg/l |
| 28 Nov 2025, 10:09 | 0.878 | 0.878 mg/l |
| 16 Oct 2025, 10:25 | 1.29 | 1.29 mg/l |
| 18 Sep 2025, 12:13 | 0.791 | 0.791 mg/l |
| 18 Aug 2025, 10:58 | 0.107 | 0.107 mg/l |
| 16 Jul 2025, 13:21 | 0.646 | 0.646 mg/l |
| 27 Jun 2025, 13:29 | 0.993 | 0.993 mg/l |
| 6 May 2025, 14:27 | 0.551 | 0.551 mg/l |
| 7 Apr 2025, 10:14 | 1.49 | 1.49 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.035 mg/l
Sampled 18 Dec 2025, 9 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 0.035 | 0.035 mg/l |
| 28 Nov 2025, 10:09 | 0.031 | 0.031 mg/l |
| 16 Oct 2025, 10:25 | 0.03 | 0.03 mg/l |
| 18 Sep 2025, 12:13 | 0.031 | 0.031 mg/l |
| 18 Aug 2025, 10:58 | 0.059 | 0.059 mg/l |
| 16 Jul 2025, 13:21 | 0.036 | 0.036 mg/l |
| 6 May 2025, 14:27 | 0.017 | 0.017 mg/l |
| 7 Apr 2025, 10:14 | 0.045 | 0.045 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
186 µS/cm
Sampled 18 Dec 2025, 9 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Dec 2025, 10:16 | 186 | 186 µS/cm |
| 28 Nov 2025, 10:09 | 284 | 284 µS/cm |
| 16 Oct 2025, 10:25 | 429 | 429 µS/cm |
| 18 Sep 2025, 12:13 | 327 | 327 µS/cm |
| 18 Aug 2025, 10:58 | 485 | 485 µS/cm |
| 16 Jul 2025, 13:21 | 387 | 387 µS/cm |
| 27 Jun 2025, 13:29 | 531 | 531 µS/cm |
| 6 May 2025, 14:27 | 538 | 538 µS/cm |
| 7 Apr 2025, 10:14 | 508 | 508 µS/cm |
Everything measured here
18 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 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 9 | Apr 2025 – Dec 2025 | 101.3% 18 Dec 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 9 | Apr 2025 – Dec 2025 | 12.1 mg/l 18 Dec 2025 |
| Temperature of Water 0076 | River water | 9 | Apr 2025 – Dec 2025 | 7.6 °C 18 Dec 2025 |
| pH 0061 | River water | 9 | Apr 2025 – Dec 2025 | 7.49 18 Dec 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 9 | Apr 2025 – Dec 2025 | 0.1 mg/l 18 Dec 2025 |
| Nitrate as N 0117 | River water | 9 | Apr 2025 – Dec 2025 | 0.669 mg/l 18 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 8 | Apr 2025 – Dec 2025 | 0.035 mg/l 18 Dec 2025 |
| Conductivity at 25 C 0077 | River water | 9 | Apr 2025 – Dec 2025 | 186 µS/cm 18 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 9 | Apr 2025 – Dec 2025 | 28 mg/l 18 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 9 | Apr 2025 – Dec 2025 | 0.00048 mg/l 18 Dec 2025 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 9 | Apr 2025 – Dec 2025 | 9.9 mg/l 18 Dec 2025 |
| Chloride 0172 | River water | 9 | Apr 2025 – Dec 2025 | 30 mg/l 18 Dec 2025 |
| Flow Type 2896 | River water | 8 | Apr 2025 – Dec 2025 | Moderate Flow 18 Dec 2025 |
| Nitrite as N 0118 | River water | 9 | Apr 2025 – Dec 2025 | 0.011 mg/l 18 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 9 | Apr 2025 – Dec 2025 | 0.68 mg/l 18 Dec 2025 |
| Phosphorus, Total as P 0348 | River water | 9 | Apr 2025 – Dec 2025 | 0.066 mg/l 18 Dec 2025 |
| Silica, reactive as SiO2 0182 | River water | 9 | Apr 2025 – Dec 2025 | 4.4 mg/l 18 Dec 2025 |
| Solids, Suspended at 105 C 0135 | River water | 1 | Dec 2025 – Dec 2025 | 4.4 mg/l 18 Dec 2025 |
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.