Westleigh Brook above Pennington Brook

EA name: WESTLEIGH BROOK ABOVE PENNINGTON BROOK
Environment Agency sampling point NW-88002469 · 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
14 Sep 2026, 11:1924 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
5 since 20 Apr 2026 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Environmental monitoring statutory (EU directives) · results completed 25 Sep 2026
Where
National Grid 364543, 399264As published, to the nearest 1 m. Open in a map
River, by its own name
Westleigh Brook
River, by the map
Westleigh BrookPlaced on the river its name gives, 43 m from the line.
Next gauge downstream
Little Woolden Hall On the Glaze Brook · 8.8 km along the river
Nearest gauge upstream
Sportsman Street, Leigh On the Westleigh Brook · 1.3 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (5 samples)

Results here were completed a median of 11 days after the sample was taken (10 to 12 days, 3 samples).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

77.1%

Sampled 14 Sep 2026, 24 days ago · 5 results banked

6080100120%20242025202620 Apr 2026, 11:42: 89.8%28 May 2026, 09:27: 110.8%15 Jun 2026, 09:32: 71%1 Jul 2026, 09:15: 64.1%14 Sep 2026, 11:19: 77.1%
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:1977.1 77.1%
1 Jul 2026, 09:1564.1 64.1%
15 Jun 2026, 09:3271 71%
28 May 2026, 09:27110.8 110.8%
20 Apr 2026, 11:4289.8 89.8%

Dissolved oxygen

as O2 · code 9924 · mg/l

7.4 mg/l

Sampled 14 Sep 2026, 24 days ago · 5 results banked

681012mg/l20242025202620 Apr 2026, 11:42: 9.88 mg/l28 May 2026, 09:27: 10.4 mg/l15 Jun 2026, 09:32: 7.31 mg/l1 Jul 2026, 09:15: 6.2 mg/l14 Sep 2026, 11:19: 7.4 mg/l
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:197.4 7.4 mg/l
1 Jul 2026, 09:156.2 6.2 mg/l
15 Jun 2026, 09:327.31 7.31 mg/l
28 May 2026, 09:2710.4 10.4 mg/l
20 Apr 2026, 11:429.88 9.88 mg/l

Water temperature

code 0076 · °C

17.2 °C

Sampled 14 Sep 2026, 24 days ago · 5 results banked

101214161820°C20242025202620 Apr 2026, 11:42: 11 °C28 May 2026, 09:27: 18.5 °C15 Jun 2026, 09:32: 13.9 °C1 Jul 2026, 09:15: 16.8 °C14 Sep 2026, 11:19: 17.2 °C
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:1917.2 17.2 °C
1 Jul 2026, 09:1516.8 16.8 °C
15 Jun 2026, 09:3213.9 13.9 °C
28 May 2026, 09:2718.5 18.5 °C
20 Apr 2026, 11:4211 11 °C

pH

code 0061

7.68

Sampled 14 Sep 2026, 24 days ago · 5 results banked

7.27.47.67.888.220242025202620 Apr 2026, 11:42: 7.6728 May 2026, 09:27: 8.0415 Jun 2026, 09:32: 7.791 Jul 2026, 09:15: 7.314 Sep 2026, 11:19: 7.68
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:197.68 7.68
1 Jul 2026, 09:157.3 7.3
15 Jun 2026, 09:327.79 7.79
28 May 2026, 09:278.04 8.04
20 Apr 2026, 11:427.67 7.67

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.089 mg/l

Sampled 14 Sep 2026, 24 days ago · 5 results banked

00.10.20.30.4mg/l20242025202620 Apr 2026, 11:42: 0.37 mg/l28 May 2026, 09:27: 0.058 mg/l15 Jun 2026, 09:32: 0.16 mg/l1 Jul 2026, 09:15: 0.26 mg/l14 Sep 2026, 11:19: 0.089 mg/l
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:190.089 0.089 mg/l
1 Jul 2026, 09:150.26 0.26 mg/l
15 Jun 2026, 09:320.16 0.16 mg/l
28 May 2026, 09:270.058 0.058 mg/l
20 Apr 2026, 11:420.37 0.37 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

9.73 mg/l

Sampled 14 Sep 2026, 24 days ago · 5 results banked

051015mg/l20242025202620 Apr 2026, 11:42: 13.7 mg/l28 May 2026, 09:27: 0.483 mg/l15 Jun 2026, 09:32: 10.6 mg/l1 Jul 2026, 09:15: 3.96 mg/l14 Sep 2026, 11:19: 9.73 mg/l
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:199.73 9.73 mg/l
1 Jul 2026, 09:153.96 3.96 mg/l
15 Jun 2026, 09:3210.6 10.6 mg/l
28 May 2026, 09:270.483 0.483 mg/l
20 Apr 2026, 11:4213.7 13.7 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.11 mg/l

Sampled 14 Sep 2026, 24 days ago · 5 results banked

00.050.10.15mg/l20242025202620 Apr 2026, 11:42: 0.078 mg/l28 May 2026, 09:27: 0.017 mg/l15 Jun 2026, 09:32: 0.13 mg/l1 Jul 2026, 09:15: 0.11 mg/l14 Sep 2026, 11:19: 0.11 mg/l
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:190.11 0.11 mg/l
1 Jul 2026, 09:150.11 0.11 mg/l
15 Jun 2026, 09:320.13 0.13 mg/l
28 May 2026, 09:270.017 0.017 mg/l
20 Apr 2026, 11:420.078 0.078 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

713 µS/cm

Sampled 14 Sep 2026, 24 days ago · 5 results banked

2004006008001000µS/cm20242025202620 Apr 2026, 11:42: 852 µS/cm28 May 2026, 09:27: 322 µS/cm15 Jun 2026, 09:32: 771 µS/cm1 Jul 2026, 09:15: 445 µS/cm14 Sep 2026, 11:19: 713 µS/cm
Every result (5)
SampledResult as publishedReads as
14 Sep 2026, 11:19713 713 µS/cm
1 Jul 2026, 09:15445 445 µS/cm
15 Jun 2026, 09:32771 771 µS/cm
28 May 2026, 09:27322 322 µS/cm
20 Apr 2026, 11:42852 852 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
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 5 Apr 2026 – Sep 2026 77.1% 14 Sep 2026
Oxygen, Dissolved as O2 9924 River water 5 Apr 2026 – Sep 2026 7.4 mg/l 14 Sep 2026
Temperature of Water 0076 River water 5 Apr 2026 – Sep 2026 17.2 °C 14 Sep 2026
pH 0061 River water 5 Apr 2026 – Sep 2026 7.68 14 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 5 Apr 2026 – Sep 2026 0.089 mg/l 14 Sep 2026
Nitrate as N 0117 River water 5 Apr 2026 – Sep 2026 9.73 mg/l 14 Sep 2026
Orthophosphate, reactive as P 0180 River water 5 Apr 2026 – Sep 2026 0.11 mg/l 14 Sep 2026
Conductivity at 25 C 0077 River water 5 Apr 2026 – Sep 2026 713 µS/cm 14 Sep 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 5 Apr 2026 – Sep 2026 130 mg/l 14 Sep 2026
Ammonia un-ionised as N 0119 River water 5 Apr 2026 – Sep 2026 0.00133 mg/l 14 Sep 2026
BOD : 5 Day ATU 0085 River water 5 Apr 2026 – Sep 2026 below 5 mg/l 14 Sep 2026
Chloride 0172 River water 5 Apr 2026 – Sep 2026 36 mg/l 14 Sep 2026
Nitrite as N 0118 River water 5 Apr 2026 – Sep 2026 0.069 mg/l 14 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 5 Apr 2026 – Sep 2026 9.8 mg/l 14 Sep 2026
Solids, Suspended at 105 C 0135 River water 5 Apr 2026 – Sep 2026 38 mg/l 14 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.