Cow Brook at Shellow Lane
EA name: COW BROOK AT SHELLOW LANE
Environment Agency sampling point NW-88025945 · 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
- 12 Mar 2026, 12:327 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 9 May 2025 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 389196, 367671As published, to the nearest 1 m. Open in a map
- River, by its own name
- Cow Brook
- River, by the map
- Cow BrookPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Congleton Park On the River Dane · 9.5 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (9 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96%
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 96 | 96% |
| 8 Dec 2025, 08:39 | 92.9 | 92.9% |
| 14 Nov 2025, 08:25 | 92.7 | 92.7% |
| 10 Oct 2025, 12:12 | 88.9 | 88.9% |
| 8 Sep 2025, 14:10 | 98.4 | 98.4% |
| 15 Aug 2025, 14:36 | 87.5 | 87.5% |
| 2 Jul 2025, 10:26 | 82.9 | 82.9% |
| 16 Jun 2025, 13:48 | 112.2 | 112.2% |
| 9 May 2025, 11:48 | 105 | 105% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.3 mg/l
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 11.3 | 11.3 mg/l |
| 8 Dec 2025, 08:39 | 11 | 11 mg/l |
| 14 Nov 2025, 08:25 | 10.4 | 10.4 mg/l |
| 10 Oct 2025, 12:12 | 9.45 | 9.45 mg/l |
| 8 Sep 2025, 14:10 | 9.85 | 9.85 mg/l |
| 15 Aug 2025, 14:36 | 8.09 | 8.09 mg/l |
| 2 Jul 2025, 10:26 | 8.19 | 8.19 mg/l |
| 16 Jun 2025, 13:48 | 11 | 11 mg/l |
| 9 May 2025, 11:48 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
8.2 °C
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 8.2 | 8.2 °C |
| 8 Dec 2025, 08:39 | 8.1 | 8.1 °C |
| 14 Nov 2025, 08:25 | 10.1 | 10.1 °C |
| 10 Oct 2025, 12:12 | 12.5 | 12.5 °C |
| 8 Sep 2025, 14:10 | 15.2 | 15.2 °C |
| 15 Aug 2025, 14:36 | 19 | 19 °C |
| 2 Jul 2025, 10:26 | 15.8 | 15.8 °C |
| 16 Jun 2025, 13:48 | 16.1 | 16.1 °C |
| 9 May 2025, 11:48 | 11.5 | 11.5 °C |
pH
code 0061
7.9
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 7.9 | 7.9 |
| 8 Dec 2025, 08:39 | 7.33 | 7.33 |
| 14 Nov 2025, 08:25 | 7.51 | 7.51 |
| 10 Oct 2025, 12:12 | 7.79 | 7.79 |
| 8 Sep 2025, 14:10 | 7.96 | 7.96 |
| 15 Aug 2025, 14:36 | 7.87 | 7.87 |
| 2 Jul 2025, 10:26 | 7.78 | 7.78 |
| 16 Jun 2025, 13:48 | 7.97 | 7.97 |
| 9 May 2025, 11:48 | 8.11 | 8.11 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.082 mg/l
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 0.082 | 0.082 mg/l |
| 8 Dec 2025, 08:39 | 0.047 | 0.047 mg/l |
| 14 Nov 2025, 08:25 | 0.093 | 0.093 mg/l |
| 10 Oct 2025, 12:12 | 0.031 | 0.031 mg/l |
| 8 Sep 2025, 14:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Aug 2025, 14:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2025, 10:26 | 0.035 | 0.035 mg/l |
| 16 Jun 2025, 13:48 | 0.057 | 0.057 mg/l |
| 9 May 2025, 11:48 | 0.11 | 0.11 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.37 mg/l
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 2.37 | 2.37 mg/l |
| 8 Dec 2025, 08:39 | 3.08 | 3.08 mg/l |
| 14 Nov 2025, 08:25 | 2.67 | 2.67 mg/l |
| 10 Oct 2025, 12:12 | 1.47 | 1.47 mg/l |
| 8 Sep 2025, 14:10 | 1.78 | 1.78 mg/l |
| 15 Aug 2025, 14:36 | 1.2 | 1.2 mg/l |
| 2 Jul 2025, 10:26 | 0.954 | 0.954 mg/l |
| 16 Jun 2025, 13:48 | 1.44 | 1.44 mg/l |
| 9 May 2025, 11:48 | 1.45 | 1.45 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.053 mg/l
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 0.053 | 0.053 mg/l |
| 8 Dec 2025, 08:39 | 0.051 | 0.051 mg/l |
| 14 Nov 2025, 08:25 | 0.058 | 0.058 mg/l |
| 10 Oct 2025, 12:12 | 0.083 | 0.083 mg/l |
| 8 Sep 2025, 14:10 | 0.17 | 0.17 mg/l |
| 15 Aug 2025, 14:36 | 0.15 | 0.15 mg/l |
| 2 Jul 2025, 10:26 | 0.12 | 0.12 mg/l |
| 16 Jun 2025, 13:48 | 0.13 | 0.13 mg/l |
| 9 May 2025, 11:48 | 0.055 | 0.055 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
419 µS/cm
Sampled 12 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 12:32 | 419 | 419 µS/cm |
| 8 Dec 2025, 08:39 | 325 | 325 µS/cm |
| 14 Nov 2025, 08:25 | 377 | 377 µS/cm |
| 10 Oct 2025, 12:12 | 509 | 509 µS/cm |
| 8 Sep 2025, 14:10 | 495 | 495 µS/cm |
| 15 Aug 2025, 14:36 | 583 | 583 µS/cm |
| 2 Jul 2025, 10:26 | 523 | 523 µS/cm |
| 16 Jun 2025, 13:48 | 515 | 515 µS/cm |
| 9 May 2025, 11:48 | 469 | 469 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 9 | May 2025 – Mar 2026 | 96% 12 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 9 | May 2025 – Mar 2026 | 11.3 mg/l 12 Mar 2026 |
| Temperature of Water 0076 | River water | 9 | May 2025 – Mar 2026 | 8.2 °C 12 Mar 2026 |
| pH 0061 | River water | 9 | May 2025 – Mar 2026 | 7.9 12 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 9 | May 2025 – Mar 2026 | 0.082 mg/l 12 Mar 2026 |
| Nitrate as N 0117 | River water | 9 | May 2025 – Mar 2026 | 2.37 mg/l 12 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 9 | May 2025 – Mar 2026 | 0.053 mg/l 12 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 9 | May 2025 – Mar 2026 | 419 µS/cm 12 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 9 | May 2025 – Mar 2026 | 150 mg/l 12 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 9 | May 2025 – Mar 2026 | 0.00104 mg/l 12 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 8 | May 2025 – Mar 2026 | 1.8 mg/l 12 Mar 2026 |
| Chloride 0172 | River water | 9 | May 2025 – Mar 2026 | 19 mg/l 12 Mar 2026 |
| Nitrite as N 0118 | River water | 9 | May 2025 – Mar 2026 | 0.029 mg/l 12 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 9 | May 2025 – Mar 2026 | 2.4 mg/l 12 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 9 | May 2025 – Mar 2026 | 16 mg/l 12 Mar 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.