Upstream of East Meon Village, River Meon
EA name: U/S EAST MEON VILLAGE, RIVER MEON (also listed as “UPSTREAM MEON VILLAGE, RIVER MEON”)
Environment Agency sampling point SO-G0006963 · 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 May 2026, 08:525 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
- 24 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 467632, 122311As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- River MeonPlaced by position alone (the only river line close by), 1 m from the line.
- Next gauge downstream
- West Meon On the River Meon · 4.0 km along the river
- Nearest gauge upstream
- East Meon On the River Meon · 0.3 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99%
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 99 | 99% |
| 17 Apr 2026, 13:21 | 120.1 | 120.1% |
| 4 Mar 2026, 10:51 | 102.2 | 102.2% |
| 12 Feb 2026, 09:10 | 95.2 | 95.2% |
| 6 Jan 2026, 09:40 | 99.1 | 99.1% |
| 10 Dec 2025, 12:41 | 95.5 | 95.5% |
| 4 Mar 2025, 09:00 | 97.4 | 97.4% |
| 7 Feb 2025, 08:50 | 96.6 | 96.6% |
| 24 Jan 2025, 09:12 | 94.9 | 94.9% |
| 12 Dec 2024, 13:56 | 98.1 | 98.1% |
| 26 Nov 2024, 09:58 | 95 | 95% |
| 18 Oct 2024, 11:34 | 99.4 | 99.4% |
| 25 Sep 2024, 15:26 | 94.7 | 94.7% |
| 22 Aug 2024, 09:09 | 92.3 | 92.3% |
| 15 Jul 2024, 09:50 | 96.5 | 96.5% |
| 25 Jun 2024, 09:42 | 98.5 | 98.5% |
| 13 May 2024, 08:54 | 98.5 | 98.5% |
| 19 Apr 2024, 09:26 | 105.6 | 105.6% |
| 22 Mar 2024, 08:59 | 99.7 | 99.7% |
| 22 Feb 2024, 09:19 | 96.1 | 96.1% |
| 18 Jan 2024, 11:06 | 97.7 | 97.7% |
| 6 Dec 2023, 15:33 | 96.2 | 96.2% |
| 22 Nov 2023, 10:40 | 97.8 | 97.8% |
| 18 Oct 2023, 11:43 | 93.3 | 93.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.7 mg/l
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 11.7 | 11.7 mg/l |
| 17 Apr 2026, 13:21 | 12.7 | 12.7 mg/l |
| 4 Mar 2026, 10:51 | 11.5 | 11.5 mg/l |
| 12 Feb 2026, 09:10 | 10.9 | 10.9 mg/l |
| 6 Jan 2026, 09:40 | 12.6 | 12.6 mg/l |
| 10 Dec 2025, 12:41 | 10.6 | 10.6 mg/l |
| 4 Mar 2025, 09:00 | 11.8 | 11.8 mg/l |
| 7 Feb 2025, 08:50 | 11.6 | 11.6 mg/l |
| 24 Jan 2025, 09:12 | 11 | 11 mg/l |
| 12 Dec 2024, 13:56 | 11.2 | 11.2 mg/l |
| 26 Nov 2024, 09:58 | 11.1 | 11.1 mg/l |
| 18 Oct 2024, 11:34 | 10.9 | 10.9 mg/l |
| 25 Sep 2024, 15:26 | 9.69 | 9.69 mg/l |
| 22 Aug 2024, 09:09 | 9.38 | 9.38 mg/l |
| 15 Jul 2024, 09:50 | 10.3 | 10.3 mg/l |
| 25 Jun 2024, 09:42 | 10.2 | 10.2 mg/l |
| 13 May 2024, 08:54 | 10.7 | 10.7 mg/l |
| 19 Apr 2024, 09:26 | 11.8 | 11.8 mg/l |
| 22 Mar 2024, 08:59 | 11.2 | 11.2 mg/l |
| 22 Feb 2024, 09:19 | 10.8 | 10.8 mg/l |
| 18 Jan 2024, 11:06 | 12 | 12 mg/l |
| 6 Dec 2023, 15:33 | 11.1 | 11.1 mg/l |
| 22 Nov 2023, 10:40 | 11.3 | 11.3 mg/l |
| 18 Oct 2023, 11:43 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
8.1 °C
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 8.1 | 8.1 °C |
| 17 Apr 2026, 13:21 | 12.9 | 12.9 °C |
| 4 Mar 2026, 10:51 | 9.9 | 9.9 °C |
| 12 Feb 2026, 09:10 | 9.5 | 9.5 °C |
| 6 Jan 2026, 09:40 | 5.1 | 5.1 °C |
| 10 Dec 2025, 12:41 | 10.7 | 10.7 °C |
| 4 Mar 2025, 09:00 | 7.1 | 7.1 °C |
| 7 Feb 2025, 08:50 | 7.5 | 7.5 °C |
| 24 Jan 2025, 09:12 | 8.9 | 8.9 °C |
| 12 Dec 2024, 13:56 | 9.6 | 9.6 °C |
| 26 Nov 2024, 09:58 | 8.4 | 8.4 °C |
| 18 Oct 2024, 11:34 | 11.3 | 11.3 °C |
| 25 Sep 2024, 15:26 | 14.2 | 14.2 °C |
| 22 Aug 2024, 09:09 | 14.5 | 14.5 °C |
| 15 Jul 2024, 09:50 | 12.2 | 12.2 °C |
| 25 Jun 2024, 09:42 | 13.6 | 13.6 °C |
| 13 May 2024, 08:54 | 11.5 | 11.5 °C |
| 19 Apr 2024, 09:26 | 10.5 | 10.5 °C |
| 22 Mar 2024, 08:59 | 10.2 | 10.2 °C |
| 22 Feb 2024, 09:19 | 10 | 10 °C |
| 18 Jan 2024, 11:06 | 6.6 | 6.6 °C |
| 6 Dec 2023, 15:33 | 9.1 | 9.1 °C |
| 22 Nov 2023, 10:40 | 9.1 | 9.1 °C |
| 18 Oct 2023, 11:43 | 10.7 | 10.7 °C |
pH
code 0061
8.38
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 8.38 | 8.38 |
| 17 Apr 2026, 13:21 | 8.3 | 8.3 |
| 4 Mar 2026, 10:51 | 8.02 | 8.02 |
| 12 Feb 2026, 09:10 | 7.81 | 7.81 |
| 6 Jan 2026, 09:40 | 8.24 | 8.24 |
| 10 Dec 2025, 12:41 | 7.84 | 7.84 |
| 4 Mar 2025, 09:00 | 8.04 | 8.04 |
| 7 Feb 2025, 08:50 | 8.08 | 8.08 |
| 24 Jan 2025, 09:12 | 7.94 | 7.94 |
| 12 Dec 2024, 13:56 | 8.06 | 8.06 |
| 26 Nov 2024, 09:58 | 8.17 | 8.17 |
| 18 Oct 2024, 11:34 | 8.18 | 8.18 |
| 25 Sep 2024, 15:26 | 8.45 | 8.45 |
| 22 Aug 2024, 09:09 | 8.17 | 8.17 |
| 15 Jul 2024, 09:50 | 8.27 | 8.27 |
| 25 Jun 2024, 09:42 | 8.21 | 8.21 |
| 13 May 2024, 08:54 | 8.18 | 8.18 |
| 19 Apr 2024, 09:26 | 8.19 | 8.19 |
| 22 Mar 2024, 08:59 | 8.16 | 8.16 |
| 22 Feb 2024, 09:19 | 7.99 | 7.99 |
| 18 Jan 2024, 11:06 | 8.26 | 8.26 |
| 6 Dec 2023, 15:33 | 7.99 | 7.99 |
| 22 Nov 2023, 10:40 | 7.95 | 7.95 |
| 18 Oct 2023, 11:43 | 8.21 | 8.21 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Apr 2026, 13:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2026, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Feb 2026, 09:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2026, 09:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Dec 2025, 12:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2025, 09:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Feb 2025, 08:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jan 2025, 09:12 | 0.061 | 0.061 mg/l |
| 12 Dec 2024, 13:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Nov 2024, 09:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2024, 11:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Sep 2024, 15:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2024, 09:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jul 2024, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jun 2024, 09:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2024, 08:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Apr 2024, 09:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Mar 2024, 08:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Feb 2024, 09:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jan 2024, 11:06 | 0.041 | 0.041 mg/l |
| 6 Dec 2023, 15:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Nov 2023, 10:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2023, 11:43 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.69 mg/l
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 5.69 | 5.69 mg/l |
| 17 Apr 2026, 13:21 | 5.89 | 5.89 mg/l |
| 4 Mar 2026, 10:51 | 6.3 | 6.3 mg/l |
| 12 Feb 2026, 09:10 | 5.5 | 5.5 mg/l |
| 6 Jan 2026, 09:40 | 6.6 | 6.6 mg/l |
| 10 Dec 2025, 12:41 | 5.09 | 5.09 mg/l |
| 4 Mar 2025, 09:00 | 6.3 | 6.3 mg/l |
| 7 Feb 2025, 08:50 | 6.6 | 6.6 mg/l |
| 24 Jan 2025, 09:12 | 3.99 | 3.99 mg/l |
| 12 Dec 2024, 13:56 | 5.99 | 5.99 mg/l |
| 26 Nov 2024, 09:58 | 5.39 | 5.39 mg/l |
| 18 Oct 2024, 11:34 | 5.09 | 5.09 mg/l |
| 25 Sep 2024, 15:26 | 4.19 | 4.19 mg/l |
| 22 Aug 2024, 09:09 | 4.39 | 4.39 mg/l |
| 15 Jul 2024, 09:50 | 5.08 | 5.08 mg/l |
| 25 Jun 2024, 09:42 | 5.69 | 5.69 mg/l |
| 13 May 2024, 08:54 | 6.3 | 6.3 mg/l |
| 19 Apr 2024, 09:26 | 6.8 | 6.8 mg/l |
| 22 Mar 2024, 08:59 | 6.7 | 6.7 mg/l |
| 22 Feb 2024, 09:19 | 4.89 | 4.89 mg/l |
| 18 Jan 2024, 11:06 | 6.9 | 6.9 mg/l |
| 6 Dec 2023, 15:33 | 6.1 | 6.1 mg/l |
| 22 Nov 2023, 10:40 | 6.19 | 6.19 mg/l |
| 18 Oct 2023, 11:43 | 4.19 | 4.19 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.023 mg/l
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 0.023 | 0.023 mg/l |
| 17 Apr 2026, 13:21 | 0.019 | 0.019 mg/l |
| 4 Mar 2026, 10:51 | 0.022 | 0.022 mg/l |
| 12 Feb 2026, 09:10 | 0.065 | 0.065 mg/l |
| 6 Jan 2026, 09:40 | 0.022 | 0.022 mg/l |
| 10 Dec 2025, 12:41 | 0.077 | 0.077 mg/l |
| 4 Mar 2025, 09:00 | 0.014 | 0.014 mg/l |
| 7 Feb 2025, 08:50 | 0.019 | 0.019 mg/l |
| 24 Jan 2025, 09:12 | 0.14 | 0.14 mg/l |
| 12 Dec 2024, 13:56 | 0.024 | 0.024 mg/l |
| 26 Nov 2024, 09:58 | 0.056 | 0.056 mg/l |
| 18 Oct 2024, 11:34 | 0.027 | 0.027 mg/l |
| 25 Sep 2024, 15:26 | 0.044 | 0.044 mg/l |
| 22 Aug 2024, 09:09 | 0.021 | 0.021 mg/l |
| 15 Jul 2024, 09:50 | 0.023 | 0.023 mg/l |
| 25 Jun 2024, 09:42 | 0.019 | 0.019 mg/l |
| 13 May 2024, 08:54 | 0.013 | 0.013 mg/l |
| 19 Apr 2024, 09:26 | <0.01 | below 0.01 mg/l (not detected above this) |
| 22 Mar 2024, 08:59 | 0.015 | 0.015 mg/l |
| 22 Feb 2024, 09:19 | 0.072 | 0.072 mg/l |
| 18 Jan 2024, 11:06 | 0.029 | 0.029 mg/l |
| 6 Dec 2023, 15:33 | 0.036 | 0.036 mg/l |
| 22 Nov 2023, 10:40 | 0.031 | 0.031 mg/l |
| 18 Oct 2023, 11:43 | 0.032 | 0.032 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
540 µS/cm
Sampled 12 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 08:52 | 540 | 540 µS/cm |
| 17 Apr 2026, 13:21 | 522 | 522 µS/cm |
| 4 Mar 2026, 10:51 | 560 | 560 µS/cm |
| 12 Feb 2026, 09:10 | 548 | 548 µS/cm |
| 6 Jan 2026, 09:40 | 537 | 537 µS/cm |
| 10 Dec 2025, 12:41 | 562 | 562 µS/cm |
| 4 Mar 2025, 09:00 | 556 | 556 µS/cm |
| 7 Feb 2025, 08:50 | 555 | 555 µS/cm |
| 24 Jan 2025, 09:12 | 479 | 479 µS/cm |
| 12 Dec 2024, 13:56 | 561 | 561 µS/cm |
| 26 Nov 2024, 09:58 | 574 | 574 µS/cm |
| 18 Oct 2024, 11:34 | 564 | 564 µS/cm |
| 25 Sep 2024, 15:26 | 529 | 529 µS/cm |
| 22 Aug 2024, 09:09 | 532 | 532 µS/cm |
| 15 Jul 2024, 09:50 | 545 | 545 µS/cm |
| 25 Jun 2024, 09:42 | 538 | 538 µS/cm |
| 13 May 2024, 08:54 | 549 | 549 µS/cm |
| 19 Apr 2024, 09:26 | 550 | 550 µS/cm |
| 22 Mar 2024, 08:59 | 562 | 562 µS/cm |
| 22 Feb 2024, 09:19 | 524 | 524 µS/cm |
| 18 Jan 2024, 11:06 | 564 | 564 µS/cm |
| 6 Dec 2023, 15:33 | 565 | 565 µS/cm |
| 22 Nov 2023, 10:40 | 568 | 568 µS/cm |
| 18 Oct 2023, 11:43 | 568 | 568 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 | 24 | Oct 2023 – May 2026 | 99% 12 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Oct 2023 – May 2026 | 11.7 mg/l 12 May 2026 |
| Temperature of Water 0076 | River water | 24 | Oct 2023 – May 2026 | 8.1 °C 12 May 2026 |
| pH 0061 | River water | 24 | Oct 2023 – May 2026 | 8.38 12 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Oct 2023 – May 2026 | below 0.03 mg/l 12 May 2026 |
| Nitrate as N 0117 | River water | 24 | Oct 2023 – May 2026 | 5.69 mg/l 12 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Oct 2023 – May 2026 | 0.023 mg/l 12 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Oct 2023 – May 2026 | 540 µS/cm 12 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Oct 2023 – May 2026 | 240 mg/l 12 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Oct 2023 – May 2026 | below 0.00048 mg/l 12 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 20 | Feb 2024 – May 2026 | 1.3 mg/l 12 May 2026 |
| Nitrite as N 0118 | River water | 24 | Oct 2023 – May 2026 | 0.012 mg/l 12 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Oct 2023 – May 2026 | 5.7 mg/l 12 May 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.