River Avon Upper Clifton
EA name: RIVER AVON UPPER CLIFTON
Environment Agency sampling point MD-04805580 · 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, 14:087 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
- 21 since 18 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 453180, 277250As published, to the nearest 10 m. Open in a map
- River, by its own name
- Avon
- River, by the map
- River AvonPlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- Rugby On the River Avon · 4.7 km along the river
- Nearest gauge upstream
- Lilbourne On the River Avon · 5.0 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.2%
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 93.2 | 93.2% |
| 18 Feb 2026, 12:46 | 93.9 | 93.9% |
| 3 Feb 2026, 12:01 | 93.8 | 93.8% |
| 28 Jan 2026, 11:52 | 95.6 | 95.6% |
| 15 Jan 2026, 16:05 | 94.1 | 94.1% |
| 18 Dec 2025, 10:02 | 86.5 | 86.5% |
| 1 Dec 2025, 12:50 | 89.9 | 89.9% |
| 17 Nov 2025, 12:21 | 83.6 | 83.6% |
| 13 Nov 2025, 11:04 | 76.4 | 76.4% |
| 19 Mar 2025, 10:31 | 104.1 | 104.1% |
| 26 Nov 2024, 12:00 | 84.7 | 84.7% |
| 28 Oct 2024, 12:41 | 92 | 92% |
| 25 Jul 2024, 12:05 | 82.5 | 82.5% |
| 20 May 2024, 11:53 | 97 | 97% |
| 15 Apr 2024, 10:12 | 92 | 92% |
| 20 Mar 2024, 09:07 | 89 | 89% |
| 27 Feb 2024, 11:33 | 93.5 | 93.5% |
| 16 Jan 2024, 10:21 | 90.3 | 90.3% |
| 12 Dec 2023, 13:22 | 90.1 | 90.1% |
| 23 Nov 2023, 08:44 | 92 | 92% |
| 18 Oct 2023, 11:41 | 78.1 | 78.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.8 mg/l
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 10.8 | 10.8 mg/l |
| 18 Feb 2026, 12:46 | 12.1 | 12.1 mg/l |
| 3 Feb 2026, 12:01 | 11.8 | 11.8 mg/l |
| 28 Jan 2026, 11:52 | 11.9 | 11.9 mg/l |
| 15 Jan 2026, 16:05 | 11.9 | 11.9 mg/l |
| 18 Dec 2025, 10:02 | 10.1 | 10.1 mg/l |
| 1 Dec 2025, 12:50 | 10.6 | 10.6 mg/l |
| 17 Nov 2025, 12:21 | 9.72 | 9.72 mg/l |
| 13 Nov 2025, 11:04 | 8.2 | 8.2 mg/l |
| 19 Mar 2025, 10:31 | 12.8 | 12.8 mg/l |
| 26 Nov 2024, 12:00 | 10.3 | 10.3 mg/l |
| 28 Oct 2024, 12:41 | 9.98 | 9.98 mg/l |
| 25 Jul 2024, 12:05 | 7.76 | 7.76 mg/l |
| 20 May 2024, 11:53 | 9.57 | 9.57 mg/l |
| 15 Apr 2024, 10:12 | 10.1 | 10.1 mg/l |
| 20 Mar 2024, 09:07 | 9.98 | 9.98 mg/l |
| 27 Feb 2024, 11:33 | 11.7 | 11.7 mg/l |
| 16 Jan 2024, 10:21 | 12.6 | 12.6 mg/l |
| 12 Dec 2023, 13:22 | 10.8 | 10.8 mg/l |
| 23 Nov 2023, 08:44 | 10.6 | 10.6 mg/l |
| 18 Oct 2023, 11:41 | 8.82 | 8.82 mg/l |
Water temperature
code 0076 · °C
8.7 °C
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 8.7 | 8.7 °C |
| 18 Feb 2026, 12:46 | 4.6 | 4.6 °C |
| 3 Feb 2026, 12:01 | 5.6 | 5.6 °C |
| 28 Jan 2026, 11:52 | 5.9 | 5.9 °C |
| 15 Jan 2026, 16:05 | 5.4 | 5.4 °C |
| 18 Dec 2025, 10:02 | 8.4 | 8.4 °C |
| 1 Dec 2025, 12:50 | 8 | 8 °C |
| 17 Nov 2025, 12:21 | 8.7 | 8.7 °C |
| 13 Nov 2025, 11:04 | 12.1 | 12.1 °C |
| 19 Mar 2025, 10:31 | 6.5 | 6.5 °C |
| 26 Nov 2024, 12:00 | 6.9 | 6.9 °C |
| 28 Oct 2024, 12:41 | 11.6 | 11.6 °C |
| 25 Jul 2024, 12:05 | 18.2 | 18.2 °C |
| 20 May 2024, 11:53 | 15.9 | 15.9 °C |
| 15 Apr 2024, 10:12 | 11.2 | 11.2 °C |
| 20 Mar 2024, 09:07 | 10.2 | 10.2 °C |
| 27 Feb 2024, 11:33 | 5.8 | 5.8 °C |
| 16 Jan 2024, 10:21 | 1.7 | 1.7 °C |
| 12 Dec 2023, 13:22 | 7.3 | 7.3 °C |
| 23 Nov 2023, 08:44 | 8.9 | 8.9 °C |
| 18 Oct 2023, 11:41 | 9.9 | 9.9 °C |
pH
code 0061
8.03
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 8.03 | 8.03 |
| 18 Feb 2026, 12:46 | 8.02 | 8.02 |
| 3 Feb 2026, 12:01 | 8.14 | 8.14 |
| 28 Jan 2026, 11:52 | 8.07 | 8.07 |
| 15 Jan 2026, 16:05 | 8.04 | 8.04 |
| 18 Dec 2025, 10:02 | 7.77 | 7.77 |
| 1 Dec 2025, 12:50 | 7.74 | 7.74 |
| 17 Nov 2025, 12:21 | 7.78 | 7.78 |
| 13 Nov 2025, 11:04 | 7.67 | 7.67 |
| 19 Mar 2025, 10:31 | 8.21 | 8.21 |
| 26 Nov 2024, 12:00 | 7.84 | 7.84 |
| 28 Oct 2024, 12:41 | 7.82 | 7.82 |
| 25 Jul 2024, 12:05 | 8.09 | 8.09 |
| 20 May 2024, 11:53 | 7.82 | 7.82 |
| 15 Apr 2024, 10:12 | 7.78 | 7.78 |
| 20 Mar 2024, 09:07 | 7.92 | 7.92 |
| 27 Feb 2024, 11:33 | 7.9 | 7.9 |
| 16 Jan 2024, 10:21 | 7.92 | 7.92 |
| 12 Dec 2023, 13:22 | 7.75 | 7.75 |
| 23 Nov 2023, 08:44 | 7.91 | 7.91 |
| 18 Oct 2023, 11:41 | 7.79 | 7.79 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Feb 2026, 12:46 | 0.083 | 0.083 mg/l |
| 3 Feb 2026, 12:01 | 0.035 | 0.035 mg/l |
| 28 Jan 2026, 11:52 | 0.036 | 0.036 mg/l |
| 15 Jan 2026, 16:05 | 0.06 | 0.06 mg/l |
| 18 Dec 2025, 10:02 | 0.037 | 0.037 mg/l |
| 1 Dec 2025, 12:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Nov 2025, 12:21 | 0.043 | 0.043 mg/l |
| 13 Nov 2025, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2025, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Nov 2024, 12:00 | 0.058 | 0.058 mg/l |
| 28 Oct 2024, 12:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jul 2024, 12:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 May 2024, 11:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2024, 10:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2024, 09:07 | 0.031 | 0.031 mg/l |
| 27 Feb 2024, 11:33 | 0.06 | 0.06 mg/l |
| 16 Jan 2024, 10:21 | 0.12 | 0.12 mg/l |
| 12 Dec 2023, 13:22 | 0.059 | 0.059 mg/l |
| 23 Nov 2023, 08:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2023, 11:41 | 0.03 | 0.03 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.38 mg/l
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 4.38 | 4.38 mg/l |
| 18 Feb 2026, 12:46 | 4.98 | 4.98 mg/l |
| 3 Feb 2026, 12:01 | 6.18 | 6.18 mg/l |
| 28 Jan 2026, 11:52 | 5.18 | 5.18 mg/l |
| 15 Jan 2026, 16:05 | 6.58 | 6.58 mg/l |
| 18 Dec 2025, 10:02 | 7.57 | 7.57 mg/l |
| 1 Dec 2025, 12:50 | 9.65 | 9.65 mg/l |
| 17 Nov 2025, 12:21 | 9.45 | 9.45 mg/l |
| 13 Nov 2025, 11:04 | 8.26 | 8.26 mg/l |
| 19 Mar 2025, 10:31 | 4.58 | 4.58 mg/l |
| 26 Nov 2024, 12:00 | 5.38 | 5.38 mg/l |
| 28 Oct 2024, 12:41 | 3.59 | 3.59 mg/l |
| 25 Jul 2024, 12:05 | 1.69 | 1.69 mg/l |
| 20 May 2024, 11:53 | 5.66 | 5.66 mg/l |
| 15 Apr 2024, 10:12 | 3.59 | 3.59 mg/l |
| 20 Mar 2024, 09:07 | 3.87 | 3.87 mg/l |
| 27 Feb 2024, 11:33 | 4.17 | 4.17 mg/l |
| 16 Jan 2024, 10:21 | 5.27 | 5.27 mg/l |
| 12 Dec 2023, 13:22 | 6.07 | 6.07 mg/l |
| 23 Nov 2023, 08:44 | 6.18 | 6.18 mg/l |
| 18 Oct 2023, 11:41 | 3.37 | 3.37 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.091 mg/l
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 0.091 | 0.091 mg/l |
| 18 Feb 2026, 12:46 | 0.074 | 0.074 mg/l |
| 3 Feb 2026, 12:01 | 0.079 | 0.079 mg/l |
| 28 Jan 2026, 11:52 | 0.11 | 0.11 mg/l |
| 15 Jan 2026, 16:05 | 0.078 | 0.078 mg/l |
| 18 Dec 2025, 10:02 | 0.082 | 0.082 mg/l |
| 1 Dec 2025, 12:50 | 0.082 | 0.082 mg/l |
| 17 Nov 2025, 12:21 | 0.088 | 0.088 mg/l |
| 13 Nov 2025, 11:04 | 0.17 | 0.17 mg/l |
| 19 Mar 2025, 10:31 | 0.096 | 0.096 mg/l |
| 26 Nov 2024, 12:00 | 0.1 | 0.1 mg/l |
| 28 Oct 2024, 12:41 | 0.092 | 0.092 mg/l |
| 25 Jul 2024, 12:05 | 0.19 | 0.19 mg/l |
| 20 May 2024, 11:53 | 0.1 | 0.1 mg/l |
| 15 Apr 2024, 10:12 | 0.058 | 0.058 mg/l |
| 20 Mar 2024, 09:07 | 0.072 | 0.072 mg/l |
| 27 Feb 2024, 11:33 | 0.066 | 0.066 mg/l |
| 16 Jan 2024, 10:21 | 0.069 | 0.069 mg/l |
| 12 Dec 2023, 13:22 | 0.066 | 0.066 mg/l |
| 23 Nov 2023, 08:44 | 0.094 | 0.094 mg/l |
| 18 Oct 2023, 11:41 | 0.15 | 0.15 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
573 µS/cm
Sampled 12 Mar 2026, 7 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Mar 2026, 14:08 | 573 | 573 µS/cm |
| 18 Feb 2026, 12:46 | 482 | 482 µS/cm |
| 3 Feb 2026, 12:01 | 513 | 513 µS/cm |
| 28 Jan 2026, 11:52 | 410 | 410 µS/cm |
| 15 Jan 2026, 16:05 | 596 | 596 µS/cm |
| 18 Dec 2025, 10:02 | 514 | 514 µS/cm |
| 1 Dec 2025, 12:50 | 638 | 638 µS/cm |
| 17 Nov 2025, 12:21 | 618 | 618 µS/cm |
| 13 Nov 2025, 11:04 | 664 | 664 µS/cm |
| 19 Mar 2025, 10:31 | 678 | 678 µS/cm |
| 26 Nov 2024, 12:00 | 484 | 484 µS/cm |
| 28 Oct 2024, 12:41 | 604 | 604 µS/cm |
| 25 Jul 2024, 12:05 | 664 | 664 µS/cm |
| 20 May 2024, 11:53 | 679 | 679 µS/cm |
| 15 Apr 2024, 10:12 | 626 | 626 µS/cm |
| 20 Mar 2024, 09:07 | 521 | 521 µS/cm |
| 27 Feb 2024, 11:33 | 527 | 527 µS/cm |
| 16 Jan 2024, 10:21 | 594 | 594 µS/cm |
| 12 Dec 2023, 13:22 | 507 | 507 µS/cm |
| 23 Nov 2023, 08:44 | 621 | 621 µS/cm |
| 18 Oct 2023, 11:41 | 746 | 746 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 | 21 | Oct 2023 – Mar 2026 | 93.2% 12 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Oct 2023 – Mar 2026 | 10.8 mg/l 12 Mar 2026 |
| Temperature of Water 0076 | River water | 21 | Oct 2023 – Mar 2026 | 8.7 °C 12 Mar 2026 |
| pH 0061 | River water | 21 | Oct 2023 – Mar 2026 | 8.03 12 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 21 | Oct 2023 – Mar 2026 | below 0.03 mg/l 12 Mar 2026 |
| Nitrate as N 0117 | River water | 21 | Oct 2023 – Mar 2026 | 4.38 mg/l 12 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Oct 2023 – Mar 2026 | 0.091 mg/l 12 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 21 | Oct 2023 – Mar 2026 | 573 µS/cm 12 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Oct 2023 – Mar 2026 | 190 mg/l 12 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 21 | Oct 2023 – Mar 2026 | below 0.0005 mg/l 12 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 17 | Feb 2024 – Mar 2026 | 1.7 mg/l 12 Mar 2026 |
| Nitrite as N 0118 | River water | 21 | Oct 2023 – Mar 2026 | 0.022 mg/l 12 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 21 | Oct 2023 – Mar 2026 | 4.4 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.