Alne River Alcester

EA name: ALNE RIVER ALCESTER
Environment Agency sampling point MD-08100050 · 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
21 Sep 2026, 12:0217 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
5 since 29 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 23 Sep 2026
Where
National Grid 409650, 257530As published, to the nearest 10 m. Open in a map
River, by its own name
Alne
River, by the map
River AlnePlaced on the river its name gives, 7 m from the line.
Next gauge downstream
Broom On the River Arrow · 6.1 km along the river
Nearest gauge upstream
Little Alne On the River Alne · 9.2 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (5 samples)

Results here were completed a median of 3 days after the sample was taken (2 to 42 days, 5 samples).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

88.8%

Sampled 21 Sep 2026, 17 days ago · 5 results banked

8090100110120%20242025202629 Apr 2026, 11:54: 112.6%15 May 2026, 11:08: 102.4%4 Jun 2026, 12:42: 91.3%6 Jul 2026, 11:35: 91.9%21 Sep 2026, 12:02: 88.8%
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:0288.8 88.8%
6 Jul 2026, 11:3591.9 91.9%
4 Jun 2026, 12:4291.3 91.3%
15 May 2026, 11:08102.4 102.4%
29 Apr 2026, 11:54112.6 112.6%

Dissolved oxygen

as O2 · code 9924 · mg/l

9.03 mg/l

Sampled 21 Sep 2026, 17 days ago · 5 results banked

8910111213mg/l20242025202629 Apr 2026, 11:54: 12.1 mg/l15 May 2026, 11:08: 11.3 mg/l4 Jun 2026, 12:42: 9.06 mg/l6 Jul 2026, 11:35: 8.44 mg/l21 Sep 2026, 12:02: 9.03 mg/l
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:029.03 9.03 mg/l
6 Jul 2026, 11:358.44 8.44 mg/l
4 Jun 2026, 12:429.06 9.06 mg/l
15 May 2026, 11:0811.3 11.3 mg/l
29 Apr 2026, 11:5412.1 12.1 mg/l

Water temperature

code 0076 · °C

14.5 °C

Sampled 21 Sep 2026, 17 days ago · 5 results banked

1012.51517.520°C20242025202629 Apr 2026, 11:54: 12.2 °C15 May 2026, 11:08: 10.8 °C4 Jun 2026, 12:42: 15.6 °C6 Jul 2026, 11:35: 19.4 °C21 Sep 2026, 12:02: 14.5 °C
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:0214.5 14.5 °C
6 Jul 2026, 11:3519.4 19.4 °C
4 Jun 2026, 12:4215.6 15.6 °C
15 May 2026, 11:0810.8 10.8 °C
29 Apr 2026, 11:5412.2 12.2 °C

pH

code 0061

8.05

Sampled 21 Sep 2026, 17 days ago · 5 results banked

7.988.18.28.38.420242025202629 Apr 2026, 11:54: 8.3715 May 2026, 11:08: 8.284 Jun 2026, 12:42: 8.086 Jul 2026, 11:35: 7.9721 Sep 2026, 12:02: 8.05
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:028.05 8.05
6 Jul 2026, 11:357.97 7.97
4 Jun 2026, 12:428.08 8.08
15 May 2026, 11:088.28 8.28
29 Apr 2026, 11:548.37 8.37

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 21 Sep 2026, 17 days ago · 5 results banked

0.030.0320.0340.036mg/l20242025202629 Apr 2026, 11:54: below 0.03 mg/l (not detected above this)15 May 2026, 11:08: below 0.03 mg/l (not detected above this)4 Jun 2026, 12:42: 0.035 mg/l6 Jul 2026, 11:35: below 0.03 mg/l (not detected above this)21 Sep 2026, 12:02: below 0.03 mg/l (not detected above this)
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:02<0.03 below 0.03 mg/l (not detected above this)
6 Jul 2026, 11:35<0.03 below 0.03 mg/l (not detected above this)
4 Jun 2026, 12:420.035 0.035 mg/l
15 May 2026, 11:08<0.03 below 0.03 mg/l (not detected above this)
29 Apr 2026, 11:54<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

3.69 mg/l

Sampled 21 Sep 2026, 17 days ago · 5 results banked

1234mg/l20242025202629 Apr 2026, 11:54: 1.28 mg/l15 May 2026, 11:08: 3.48 mg/l4 Jun 2026, 12:42: 3.07 mg/l6 Jul 2026, 11:35: 3.59 mg/l21 Sep 2026, 12:02: 3.69 mg/l
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:023.69 3.69 mg/l
6 Jul 2026, 11:353.59 3.59 mg/l
4 Jun 2026, 12:423.07 3.07 mg/l
15 May 2026, 11:083.48 3.48 mg/l
29 Apr 2026, 11:541.28 1.28 mg/l

Phosphate

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

0.19 mg/l

Sampled 21 Sep 2026, 17 days ago · 5 results banked

00.050.10.150.20.25mg/l20242025202629 Apr 2026, 11:54: 0.042 mg/l15 May 2026, 11:08: 0.064 mg/l4 Jun 2026, 12:42: 0.21 mg/l6 Jul 2026, 11:35: 0.2 mg/l21 Sep 2026, 12:02: 0.19 mg/l
Every result (5)
SampledResult as publishedReads as
21 Sep 2026, 12:020.19 0.19 mg/l
6 Jul 2026, 11:350.2 0.2 mg/l
4 Jun 2026, 12:420.21 0.21 mg/l
15 May 2026, 11:080.064 0.064 mg/l
29 Apr 2026, 11:540.042 0.042 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

1466 µS/cm

Sampled 21 Sep 2026, 17 days ago · 4 results banked

1200130014001500µS/cm20242025202629 Apr 2026, 11:54: 1236 µS/cm15 May 2026, 11:08: 1300 µS/cm6 Jul 2026, 11:35: 1497 µS/cm21 Sep 2026, 12:02: 1466 µS/cm
Every result (4)
SampledResult as publishedReads as
21 Sep 2026, 12:021466 1466 µS/cm
6 Jul 2026, 11:351497 1497 µS/cm
15 May 2026, 11:081300 1300 µS/cm
29 Apr 2026, 11:541236 1236 µS/cm

Everything measured here

12 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 12 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 5 Apr 2026 – Sep 2026 88.8% 21 Sep 2026
Oxygen, Dissolved as O2 9924 River water 5 Apr 2026 – Sep 2026 9.03 mg/l 21 Sep 2026
Temperature of Water 0076 River water 5 Apr 2026 – Sep 2026 14.5 °C 21 Sep 2026
pH 0061 River water 5 Apr 2026 – Sep 2026 8.05 21 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 5 Apr 2026 – Sep 2026 below 0.03 mg/l 21 Sep 2026
Nitrate as N 0117 River water 5 Apr 2026 – Sep 2026 3.69 mg/l 21 Sep 2026
Orthophosphate, reactive as P 0180 River water 5 Apr 2026 – Sep 2026 0.19 mg/l 21 Sep 2026
Conductivity at 25 C 0077 River water 4 Apr 2026 – Sep 2026 1466 µS/cm 21 Sep 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 5 Apr 2026 – Sep 2026 240 mg/l 21 Sep 2026
Ammonia un-ionised as N 0119 River water 5 Apr 2026 – Sep 2026 below 0.00076 mg/l 21 Sep 2026
Nitrite as N 0118 River water 5 Apr 2026 – Sep 2026 0.007 mg/l 21 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 5 Apr 2026 – Sep 2026 3.7 mg/l 21 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.