Little Avon Berkeley
EA name: LITTLE AVON BERKELEY
Environment Agency sampling point SW-B3130102 · 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
- 15 Apr 2026, 09:506 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
- 23 since 16 Oct 2023 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 368230, 198748As published, to the nearest 1 m. Open in a map
- River, by its own name
- Little Avon
- River, by the map
- Little Avon RiverPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.Beside Berkeley: too close to say above or below.
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.5%
Sampled 15 Apr 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 99.5 | 99.5% |
| 19 Jan 2026, 14:09 | 96.9 | 96.9% |
| 14 Oct 2025, 11:14 | 87.8 | 87.8% |
| 23 Jul 2025, 12:22 | 90.2 | 90.2% |
| 11 Mar 2025, 10:31 | 98.8 | 98.8% |
| 3 Feb 2025, 12:49 | 97.4 | 97.4% |
| 28 Jan 2025, 11:19 | 98.5 | 98.5% |
| 6 Dec 2024, 12:47 | 94.2 | 94.2% |
| 20 Nov 2024, 13:53 | 93.5 | 93.5% |
| 15 Oct 2024, 12:25 | 92.7 | 92.7% |
| 16 Sep 2024, 11:58 | 93.4 | 93.4% |
| 19 Aug 2024, 08:58 | 88.9 | 88.9% |
| 22 Jul 2024, 09:46 | 91.9 | 91.9% |
| 20 Jun 2024, 10:09 | 94.8 | 94.8% |
| 15 May 2024, 10:50 | 101.6 | 101.6% |
| 18 Apr 2024, 14:19 | 125.2 | 125.2% |
| 22 Mar 2024, 10:30 | 98.7 | 98.7% |
| 19 Feb 2024, 14:17 | 96.1 | 96.1% |
| 15 Jan 2024, 10:12 | 97.2 | 97.2% |
| 13 Dec 2023, 12:25 | 95.3 | 95.3% |
| 29 Nov 2023, 12:11 | 90.4 | 90.4% |
| 15 Nov 2023, 11:04 | 95.7 | 95.7% |
| 16 Oct 2023, 11:14 | 93.7 | 93.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.9 mg/l
Sampled 15 Apr 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 10.9 | 10.9 mg/l |
| 19 Jan 2026, 14:09 | 11.5 | 11.5 mg/l |
| 14 Oct 2025, 11:14 | 9.42 | 9.42 mg/l |
| 23 Jul 2025, 12:22 | 8.59 | 8.59 mg/l |
| 11 Mar 2025, 10:31 | 11.5 | 11.5 mg/l |
| 3 Feb 2025, 12:49 | 11.7 | 11.7 mg/l |
| 28 Jan 2025, 11:19 | 11.9 | 11.9 mg/l |
| 6 Dec 2024, 12:47 | 10.9 | 10.9 mg/l |
| 20 Nov 2024, 13:53 | 11.3 | 11.3 mg/l |
| 15 Oct 2024, 12:25 | 10 | 10 mg/l |
| 16 Sep 2024, 11:58 | 9.82 | 9.82 mg/l |
| 19 Aug 2024, 08:58 | 8.98 | 8.98 mg/l |
| 22 Jul 2024, 09:46 | 8.95 | 8.95 mg/l |
| 20 Jun 2024, 10:09 | 9.64 | 9.64 mg/l |
| 15 May 2024, 10:50 | 10.4 | 10.4 mg/l |
| 18 Apr 2024, 14:19 | 13.8 | 13.8 mg/l |
| 22 Mar 2024, 10:30 | 11 | 11 mg/l |
| 19 Feb 2024, 14:17 | 10.8 | 10.8 mg/l |
| 15 Jan 2024, 10:12 | 12.2 | 12.2 mg/l |
| 13 Dec 2023, 12:25 | 11.1 | 11.1 mg/l |
| 29 Nov 2023, 12:11 | 10.9 | 10.9 mg/l |
| 15 Nov 2023, 11:04 | 10.8 | 10.8 mg/l |
| 16 Oct 2023, 11:14 | 10.7 | 10.7 mg/l |
Water temperature
code 0076 · °C
11.2 °C
Sampled 15 Apr 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 11.2 | 11.2 °C |
| 19 Jan 2026, 14:09 | 8 | 8 °C |
| 14 Oct 2025, 11:14 | 12.1 | 12.1 °C |
| 23 Jul 2025, 12:22 | 17.6 | 17.6 °C |
| 11 Mar 2025, 10:31 | 8.5 | 8.5 °C |
| 3 Feb 2025, 12:49 | 7.5 | 7.5 °C |
| 28 Jan 2025, 11:19 | 7.2 | 7.2 °C |
| 6 Dec 2024, 12:47 | 8.9 | 8.9 °C |
| 20 Nov 2024, 13:53 | 7.1 | 7.1 °C |
| 15 Oct 2024, 12:25 | 11.8 | 11.8 °C |
| 16 Sep 2024, 11:58 | 13 | 13 °C |
| 19 Aug 2024, 08:58 | 14.8 | 14.8 °C |
| 22 Jul 2024, 09:46 | 16.5 | 16.5 °C |
| 20 Jun 2024, 10:09 | 14.5 | 14.5 °C |
| 15 May 2024, 10:50 | 14.1 | 14.1 °C |
| 18 Apr 2024, 14:19 | 10.8 | 10.8 °C |
| 22 Mar 2024, 10:30 | 10.5 | 10.5 °C |
| 19 Feb 2024, 14:17 | 10.3 | 10.3 °C |
| 15 Jan 2024, 10:12 | 5.7 | 5.7 °C |
| 13 Dec 2023, 12:25 | 8.7 | 8.7 °C |
| 29 Nov 2023, 12:11 | 7.1 | 7.1 °C |
| 15 Nov 2023, 11:04 | 10.1 | 10.1 °C |
| 16 Oct 2023, 11:14 | 9.3 | 9.3 °C |
pH
code 0061
8.32
Sampled 15 Apr 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 8.32 | 8.32 |
| 19 Jan 2026, 14:09 | 7.99 | 7.99 |
| 14 Oct 2025, 11:14 | 8.04 | 8.04 |
| 23 Jul 2025, 12:22 | 8.07 | 8.07 |
| 11 Mar 2025, 10:31 | 8.32 | 8.32 |
| 3 Feb 2025, 12:49 | 8.21 | 8.21 |
| 28 Jan 2025, 11:19 | 7.98 | 7.98 |
| 6 Dec 2024, 12:47 | 7.85 | 7.85 |
| 20 Nov 2024, 13:53 | 8.01 | 8.01 |
| 15 Oct 2024, 12:25 | 8.08 | 8.08 |
| 16 Sep 2024, 11:58 | 8.13 | 8.13 |
| 19 Aug 2024, 08:58 | 8.14 | 8.14 |
| 22 Jul 2024, 09:46 | 8.16 | 8.16 |
| 20 Jun 2024, 10:09 | 8.72 | 8.72 |
| 15 May 2024, 10:50 | 8.41 | 8.41 |
| 18 Apr 2024, 14:19 | 8.6 | 8.6 |
| 22 Mar 2024, 10:30 | 8.27 | 8.27 |
| 19 Feb 2024, 14:17 | 8.03 | 8.03 |
| 15 Jan 2024, 10:12 | 8.36 | 8.36 |
| 13 Dec 2023, 12:25 | 8.07 | 8.07 |
| 29 Nov 2023, 12:11 | 8.22 | 8.22 |
| 15 Nov 2023, 11:04 | 7.93 | 7.93 |
| 16 Oct 2023, 11:14 | 8.15 | 8.15 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 15 Apr 2026, 6 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jan 2026, 14:09 | 0.057 | 0.057 mg/l |
| 14 Oct 2025, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jul 2025, 12:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Mar 2025, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 12:49 | 0.046 | 0.046 mg/l |
| 28 Jan 2025, 11:19 | 0.077 | 0.077 mg/l |
| 20 Nov 2024, 13:53 | 0.064 | 0.064 mg/l |
| 15 Oct 2024, 12:25 | 0.042 | 0.042 mg/l |
| 16 Sep 2024, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Aug 2024, 08:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jul 2024, 09:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jun 2024, 10:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 May 2024, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Apr 2024, 14:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Mar 2024, 10:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2024, 14:17 | 0.81 | 0.81 mg/l |
| 15 Jan 2024, 10:12 | 0.062 | 0.062 mg/l |
| 13 Dec 2023, 12:25 | 0.075 | 0.075 mg/l |
| 29 Nov 2023, 12:11 | 0.047 | 0.047 mg/l |
| 15 Nov 2023, 11:04 | 0.031 | 0.031 mg/l |
| 16 Oct 2023, 11:14 | 0.039 | 0.039 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.68 mg/l
Sampled 15 Apr 2026, 6 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 3.68 | 3.68 mg/l |
| 19 Jan 2026, 14:09 | 3.68 | 3.68 mg/l |
| 14 Oct 2025, 11:14 | 4.19 | 4.19 mg/l |
| 23 Jul 2025, 12:22 | 3.99 | 3.99 mg/l |
| 11 Mar 2025, 10:31 | 3.96 | 3.96 mg/l |
| 3 Feb 2025, 12:49 | 3.77 | 3.77 mg/l |
| 28 Jan 2025, 11:19 | 2.78 | 2.78 mg/l |
| 20 Nov 2024, 13:53 | 3.58 | 3.58 mg/l |
| 15 Oct 2024, 12:25 | 2.97 | 2.97 mg/l |
| 16 Sep 2024, 11:58 | 3.59 | 3.59 mg/l |
| 19 Aug 2024, 08:58 | 3.79 | 3.79 mg/l |
| 22 Jul 2024, 09:46 | 3.29 | 3.29 mg/l |
| 20 Jun 2024, 10:09 | 3.39 | 3.39 mg/l |
| 15 May 2024, 10:50 | 3.47 | 3.47 mg/l |
| 18 Apr 2024, 14:19 | 3.69 | 3.69 mg/l |
| 22 Mar 2024, 10:30 | 3.68 | 3.68 mg/l |
| 19 Feb 2024, 14:17 | 3.38 | 3.38 mg/l |
| 15 Jan 2024, 10:12 | 3.87 | 3.87 mg/l |
| 13 Dec 2023, 12:25 | 2.98 | 2.98 mg/l |
| 29 Nov 2023, 12:11 | 3.77 | 3.77 mg/l |
| 15 Nov 2023, 11:04 | 3.09 | 3.09 mg/l |
| 16 Oct 2023, 11:14 | 4.78 | 4.78 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.067 mg/l
Sampled 15 Apr 2026, 6 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 0.067 | 0.067 mg/l |
| 19 Jan 2026, 14:09 | 0.13 | 0.13 mg/l |
| 14 Oct 2025, 11:14 | 0.19 | 0.19 mg/l |
| 23 Jul 2025, 12:22 | 0.24 | 0.24 mg/l |
| 11 Mar 2025, 10:31 | 0.067 | 0.067 mg/l |
| 3 Feb 2025, 12:49 | 0.083 | 0.083 mg/l |
| 28 Jan 2025, 11:19 | 0.15 | 0.15 mg/l |
| 20 Nov 2024, 13:53 | 0.16 | 0.16 mg/l |
| 15 Oct 2024, 12:25 | 0.15 | 0.15 mg/l |
| 16 Sep 2024, 11:58 | 0.32 | 0.32 mg/l |
| 19 Aug 2024, 08:58 | 0.37 | 0.37 mg/l |
| 22 Jul 2024, 09:46 | 0.27 | 0.27 mg/l |
| 20 Jun 2024, 10:09 | 0.22 | 0.22 mg/l |
| 15 May 2024, 10:50 | 0.17 | 0.17 mg/l |
| 18 Apr 2024, 14:19 | 0.1 | 0.1 mg/l |
| 22 Mar 2024, 10:30 | 0.1 | 0.1 mg/l |
| 19 Feb 2024, 14:17 | 0.23 | 0.23 mg/l |
| 15 Jan 2024, 10:12 | 0.14 | 0.14 mg/l |
| 13 Dec 2023, 12:25 | 0.13 | 0.13 mg/l |
| 29 Nov 2023, 12:11 | 0.16 | 0.16 mg/l |
| 15 Nov 2023, 11:04 | 0.12 | 0.12 mg/l |
| 16 Oct 2023, 11:14 | 0.26 | 0.26 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
659 µS/cm
Sampled 15 Apr 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Apr 2026, 09:50 | 659 | 659 µS/cm |
| 19 Jan 2026, 14:09 | 507 | 507 µS/cm |
| 14 Oct 2025, 11:14 | 721 | 721 µS/cm |
| 23 Jul 2025, 12:22 | 681 | 681 µS/cm |
| 11 Mar 2025, 10:31 | 677 | 677 µS/cm |
| 3 Feb 2025, 12:49 | 638 | 638 µS/cm |
| 28 Jan 2025, 11:19 | 509 | 509 µS/cm |
| 6 Dec 2024, 12:47 | 463 | 463 µS/cm |
| 20 Nov 2024, 13:53 | 569 | 569 µS/cm |
| 15 Oct 2024, 12:25 | 603 | 603 µS/cm |
| 16 Sep 2024, 11:58 | 690 | 690 µS/cm |
| 19 Aug 2024, 08:58 | 683 | 683 µS/cm |
| 22 Jul 2024, 09:46 | 676 | 676 µS/cm |
| 20 Jun 2024, 10:09 | 695 | 695 µS/cm |
| 15 May 2024, 10:50 | 659 | 659 µS/cm |
| 18 Apr 2024, 14:19 | 649 | 649 µS/cm |
| 22 Mar 2024, 10:30 | 634 | 634 µS/cm |
| 19 Feb 2024, 14:17 | 555 | 555 µS/cm |
| 15 Jan 2024, 10:12 | 674 | 674 µS/cm |
| 13 Dec 2023, 12:25 | 552 | 552 µS/cm |
| 29 Nov 2023, 12:11 | 675 | 675 µS/cm |
| 15 Nov 2023, 11:04 | 530 | 530 µS/cm |
| 16 Oct 2023, 11:14 | 689 | 689 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 | 23 | Oct 2023 – Apr 2026 | 99.5% 15 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Oct 2023 – Apr 2026 | 10.9 mg/l 15 Apr 2026 |
| Temperature of Water 0076 | River water | 23 | Oct 2023 – Apr 2026 | 11.2 °C 15 Apr 2026 |
| pH 0061 | River water | 23 | Oct 2023 – Apr 2026 | 8.32 15 Apr 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Oct 2023 – Apr 2026 | below 0.03 mg/l 15 Apr 2026 |
| Nitrate as N 0117 | River water | 22 | Oct 2023 – Apr 2026 | 3.68 mg/l 15 Apr 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Oct 2023 – Apr 2026 | 0.067 mg/l 15 Apr 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Oct 2023 – Apr 2026 | 659 µS/cm 15 Apr 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Oct 2023 – Apr 2026 | 250 mg/l 15 Apr 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Oct 2023 – Apr 2026 | below 0.0006 mg/l 15 Apr 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – Apr 2026 | 1.4 mg/l 15 Apr 2026 |
| Nitrite as N 0118 | River water | 22 | Oct 2023 – Apr 2026 | 0.019 mg/l 15 Apr 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Oct 2023 – Apr 2026 | 3.7 mg/l 15 Apr 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.