River E Yar at Brading
EA name: R E YAR AT BRADING (also listed as “R EASTERN YAR AT BRADING”)
Environment Agency sampling point SO-Y0004401 · 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
- 13 Aug 2026, 11:3549 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 27 since 27 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 460600, 86300As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- East Yar
- River, by the map
- River YarPlaced on a river whose name partly matches its own, 77 m from the line.
- Next gauge downstream
- Bembridge On the Eastern Yar · 3.9 km along the river
- Nearest gauge upstream
- Sandown On the Eastern Yar · 1.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Environmental monitoring statutory (EU directives) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
65.7%
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 65.7 | 65.7% |
| 15 Jul 2026, 09:44 | 58.5 | 58.5% |
| 10 Jun 2026, 15:02 | 65.9 | 65.9% |
| 5 May 2026, 11:19 | 73.9 | 73.9% |
| 29 Apr 2026, 10:13 | 81.2 | 81.2% |
| 4 Mar 2026, 11:36 | 72.5 | 72.5% |
| 5 Feb 2026, 11:25 | 89 | 89% |
| 5 Jan 2026, 11:24 | 87.9 | 87.9% |
| 1 Dec 2025, 13:04 | 76.6 | 76.6% |
| 6 Nov 2025, 11:52 | 58 | 58% |
| 2 Oct 2025, 14:04 | 91.6 | 91.6% |
| 4 Sep 2025, 11:37 | 63.7 | 63.7% |
| 7 Aug 2025, 12:28 | 75.9 | 75.9% |
| 3 Jul 2025, 10:59 | 65 | 65% |
| 5 Jun 2025, 12:01 | 66.7 | 66.7% |
| 15 May 2025, 11:55 | 80.5 | 80.5% |
| 10 Apr 2025, 10:44 | 133.2 | 133.2% |
| 10 Mar 2025, 12:36 | 67.5 | 67.5% |
| 20 Feb 2025, 12:00 | 65.1 | 65.1% |
| 23 Jan 2025, 12:16 | 80.1 | 80.1% |
| 9 Dec 2024, 11:45 | 55.4 | 55.4% |
| 6 Nov 2024, 11:49 | 56.6 | 56.6% |
| 2 Oct 2024, 11:41 | 49.8 | 49.8% |
| 25 Sep 2024, 12:42 | 57.3 | 57.3% |
| 30 Aug 2024, 10:13 | 64.5 | 64.5% |
| 25 Jul 2024, 11:12 | 64.3 | 64.3% |
| 27 Jun 2024, 12:54 | 65.4 | 65.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.05 mg/l
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 6.05 | 6.05 mg/l |
| 15 Jul 2026, 09:44 | 5.36 | 5.36 mg/l |
| 10 Jun 2026, 15:02 | 6.69 | 6.69 mg/l |
| 5 May 2026, 11:19 | 7.55 | 7.55 mg/l |
| 29 Apr 2026, 10:13 | 8.77 | 8.77 mg/l |
| 4 Mar 2026, 11:36 | 8.27 | 8.27 mg/l |
| 5 Feb 2026, 11:25 | 10.5 | 10.5 mg/l |
| 5 Jan 2026, 11:24 | 12.2 | 12.2 mg/l |
| 1 Dec 2025, 13:04 | 8.8 | 8.8 mg/l |
| 6 Nov 2025, 11:52 | 5.96 | 5.96 mg/l |
| 2 Oct 2025, 14:04 | 9.65 | 9.65 mg/l |
| 4 Sep 2025, 11:37 | 6.2 | 6.2 mg/l |
| 7 Aug 2025, 12:28 | 7.5 | 7.5 mg/l |
| 3 Jul 2025, 10:59 | 6.15 | 6.15 mg/l |
| 5 Jun 2025, 12:01 | 6.69 | 6.69 mg/l |
| 15 May 2025, 11:55 | 8.06 | 8.06 mg/l |
| 10 Apr 2025, 10:44 | 15.1 | 15.1 mg/l |
| 10 Mar 2025, 12:36 | 7.52 | 7.52 mg/l |
| 20 Feb 2025, 12:00 | 7.55 | 7.55 mg/l |
| 23 Jan 2025, 12:16 | 9.96 | 9.96 mg/l |
| 9 Dec 2024, 11:45 | 6.65 | 6.65 mg/l |
| 6 Nov 2024, 11:49 | 6.04 | 6.04 mg/l |
| 2 Oct 2024, 11:41 | 5.18 | 5.18 mg/l |
| 25 Sep 2024, 12:42 | 5.79 | 5.79 mg/l |
| 30 Aug 2024, 10:13 | 6.42 | 6.42 mg/l |
| 25 Jul 2024, 11:12 | 6.24 | 6.24 mg/l |
| 27 Jun 2024, 12:54 | 6.14 | 6.14 mg/l |
Water temperature
code 0076 · °C
19.2 °C
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 19.2 | 19.2 °C |
| 15 Jul 2026, 09:44 | 19.5 | 19.5 °C |
| 10 Jun 2026, 15:02 | 14.6 | 14.6 °C |
| 5 May 2026, 11:19 | 14.3 | 14.3 °C |
| 29 Apr 2026, 10:13 | 11.8 | 11.8 °C |
| 4 Mar 2026, 11:36 | 9.5 | 9.5 °C |
| 5 Feb 2026, 11:25 | 8.2 | 8.2 °C |
| 5 Jan 2026, 11:24 | 1.9 | 1.9 °C |
| 1 Dec 2025, 13:04 | 9.2 | 9.2 °C |
| 6 Nov 2025, 11:52 | 14 | 14 °C |
| 2 Oct 2025, 14:04 | 12.9 | 12.9 °C |
| 4 Sep 2025, 11:37 | 16.5 | 16.5 °C |
| 7 Aug 2025, 12:28 | 15.8 | 15.8 °C |
| 3 Jul 2025, 10:59 | 17.9 | 17.9 °C |
| 5 Jun 2025, 12:01 | 15.1 | 15.1 °C |
| 15 May 2025, 11:55 | 15.2 | 15.2 °C |
| 10 Apr 2025, 10:44 | 9.7 | 9.7 °C |
| 10 Mar 2025, 12:36 | 10.5 | 10.5 °C |
| 20 Feb 2025, 12:00 | 8.8 | 8.8 °C |
| 23 Jan 2025, 12:16 | 6 | 6 °C |
| 9 Dec 2024, 11:45 | 7.4 | 7.4 °C |
| 6 Nov 2024, 11:49 | 12.3 | 12.3 °C |
| 2 Oct 2024, 11:41 | 13.5 | 13.5 °C |
| 25 Sep 2024, 12:42 | 14.8 | 14.8 °C |
| 30 Aug 2024, 10:13 | 15.5 | 15.5 °C |
| 25 Jul 2024, 11:12 | 16.7 | 16.7 °C |
| 27 Jun 2024, 12:54 | 18.3 | 18.3 °C |
pH
code 0061
7.6
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 7.6 | 7.6 |
| 15 Jul 2026, 09:44 | 7.93 | 7.93 |
| 10 Jun 2026, 15:02 | 7.88 | 7.88 |
| 5 May 2026, 11:19 | 7.58 | 7.58 |
| 29 Apr 2026, 10:13 | 7.73 | 7.73 |
| 4 Mar 2026, 11:36 | 7.52 | 7.52 |
| 5 Feb 2026, 11:25 | 7.42 | 7.42 |
| 5 Jan 2026, 11:24 | 7.99 | 7.99 |
| 1 Dec 2025, 13:04 | 7.38 | 7.38 |
| 6 Nov 2025, 11:52 | 7.28 | 7.28 |
| 2 Oct 2025, 14:04 | 7.88 | 7.88 |
| 4 Sep 2025, 11:37 | 8.04 | 8.04 |
| 7 Aug 2025, 12:28 | 8.02 | 8.02 |
| 3 Jul 2025, 10:59 | 7.85 | 7.85 |
| 5 Jun 2025, 12:01 | 7.51 | 7.51 |
| 15 May 2025, 11:55 | 7.75 | 7.75 |
| 10 Apr 2025, 10:44 | 8 | 8 |
| 10 Mar 2025, 12:36 | 7.63 | 7.63 |
| 20 Feb 2025, 12:00 | 7.45 | 7.45 |
| 23 Jan 2025, 12:16 | 7.45 | 7.45 |
| 9 Dec 2024, 11:45 | 7.45 | 7.45 |
| 6 Nov 2024, 11:49 | 7.69 | 7.69 |
| 2 Oct 2024, 11:41 | 7.54 | 7.54 |
| 25 Sep 2024, 12:42 | 7.83 | 7.83 |
| 30 Aug 2024, 10:13 | 7.9 | 7.9 |
| 25 Jul 2024, 11:12 | 7.5 | 7.5 |
| 27 Jun 2024, 12:54 | 7.54 | 7.54 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.037 mg/l
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 0.037 | 0.037 mg/l |
| 15 Jul 2026, 09:44 | 0.063 | 0.063 mg/l |
| 10 Jun 2026, 15:02 | 0.032 | 0.032 mg/l |
| 5 May 2026, 11:19 | 0.051 | 0.051 mg/l |
| 29 Apr 2026, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2026, 11:36 | 0.046 | 0.046 mg/l |
| 5 Feb 2026, 11:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jan 2026, 11:24 | 0.11 | 0.11 mg/l |
| 1 Dec 2025, 13:04 | 0.042 | 0.042 mg/l |
| 6 Nov 2025, 11:52 | 0.037 | 0.037 mg/l |
| 2 Oct 2025, 14:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 11:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 12:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2025, 10:59 | 0.042 | 0.042 mg/l |
| 5 Jun 2025, 12:01 | 0.045 | 0.045 mg/l |
| 15 May 2025, 11:55 | 0.08 | 0.08 mg/l |
| 10 Apr 2025, 10:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2025, 12:36 | 0.081 | 0.081 mg/l |
| 20 Feb 2025, 12:00 | 0.26 | 0.26 mg/l |
| 23 Jan 2025, 12:16 | 0.12 | 0.12 mg/l |
| 9 Dec 2024, 11:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2024, 11:49 | 0.066 | 0.066 mg/l |
| 2 Oct 2024, 11:41 | 0.047 | 0.047 mg/l |
| 25 Sep 2024, 12:42 | 0.035 | 0.035 mg/l |
| 30 Aug 2024, 10:13 | 0.063 | 0.063 mg/l |
| 25 Jul 2024, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jun 2024, 12:54 | 0.043 | 0.043 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.39 mg/l
Sampled 13 Aug 2026, 49 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 2.39 | 2.39 mg/l |
| 15 Jul 2026, 09:44 | 3.48 | 3.48 mg/l |
| 10 Jun 2026, 15:02 | 2.07 | 2.07 mg/l |
| 5 May 2026, 11:19 | 2.56 | 2.56 mg/l |
| 29 Apr 2026, 10:13 | 2.78 | 2.78 mg/l |
| 4 Mar 2026, 11:36 | 2.28 | 2.28 mg/l |
| 5 Feb 2026, 11:25 | 1.39 | 1.39 mg/l |
| 5 Jan 2026, 11:24 | 2.87 | 2.87 mg/l |
| 1 Dec 2025, 13:04 | 2.28 | 2.28 mg/l |
| 6 Nov 2025, 11:52 | 2.17 | 2.17 mg/l |
| 2 Oct 2025, 14:04 | 2.28 | 2.28 mg/l |
| 4 Sep 2025, 11:37 | 1.89 | 1.89 mg/l |
| 7 Aug 2025, 12:28 | 2.19 | 2.19 mg/l |
| 3 Jul 2025, 10:59 | 3.08 | 3.08 mg/l |
| 5 Jun 2025, 12:01 | 2.86 | 2.86 mg/l |
| 15 May 2025, 11:55 | 3.15 | 3.15 mg/l |
| 10 Apr 2025, 10:44 | 2.98 | 2.98 mg/l |
| 10 Mar 2025, 12:36 | 2.97 | 2.97 mg/l |
| 20 Feb 2025, 12:00 | 2.77 | 2.77 mg/l |
| 23 Jan 2025, 12:16 | 2.98 | 2.98 mg/l |
| 9 Dec 2024, 11:45 | 1.86 | 1.86 mg/l |
| 6 Nov 2024, 11:49 | 2.67 | 2.67 mg/l |
| 2 Oct 2024, 11:41 | 1.68 | 1.68 mg/l |
| 25 Sep 2024, 12:42 | 1.98 | 1.98 mg/l |
| 25 Jul 2024, 11:12 | 2.89 | 2.89 mg/l |
| 27 Jun 2024, 12:54 | 3.37 | 3.37 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.052 mg/l
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 0.052 | 0.052 mg/l |
| 15 Jul 2026, 09:44 | 0.032 | 0.032 mg/l |
| 10 Jun 2026, 15:02 | 0.059 | 0.059 mg/l |
| 5 May 2026, 11:19 | 0.045 | 0.045 mg/l |
| 29 Apr 2026, 10:13 | 0.042 | 0.042 mg/l |
| 4 Mar 2026, 11:36 | 0.071 | 0.071 mg/l |
| 5 Feb 2026, 11:25 | 0.074 | 0.074 mg/l |
| 5 Jan 2026, 11:24 | 0.043 | 0.043 mg/l |
| 1 Dec 2025, 13:04 | 0.061 | 0.061 mg/l |
| 6 Nov 2025, 11:52 | 0.062 | 0.062 mg/l |
| 2 Oct 2025, 14:04 | 0.035 | 0.035 mg/l |
| 4 Sep 2025, 11:37 | 0.073 | 0.073 mg/l |
| 7 Aug 2025, 12:28 | 0.031 | 0.031 mg/l |
| 3 Jul 2025, 10:59 | 0.046 | 0.046 mg/l |
| 5 Jun 2025, 12:01 | 0.051 | 0.051 mg/l |
| 15 May 2025, 11:55 | 0.055 | 0.055 mg/l |
| 10 Apr 2025, 10:44 | 0.026 | 0.026 mg/l |
| 10 Mar 2025, 12:36 | 0.051 | 0.051 mg/l |
| 20 Feb 2025, 12:00 | 0.056 | 0.056 mg/l |
| 23 Jan 2025, 12:16 | 0.067 | 0.067 mg/l |
| 9 Dec 2024, 11:45 | 0.064 | 0.064 mg/l |
| 6 Nov 2024, 11:49 | 0.1 | 0.1 mg/l |
| 2 Oct 2024, 11:41 | 0.11 | 0.11 mg/l |
| 25 Sep 2024, 12:42 | 0.1 | 0.1 mg/l |
| 30 Aug 2024, 10:13 | 0.033 | 0.033 mg/l |
| 25 Jul 2024, 11:12 | 0.067 | 0.067 mg/l |
| 27 Jun 2024, 12:54 | 0.078 | 0.078 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
472 µS/cm
Sampled 13 Aug 2026, 49 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 11:35 | 472 | 472 µS/cm |
| 15 Jul 2026, 09:44 | 714 | 714 µS/cm |
| 10 Jun 2026, 15:02 | 456 | 456 µS/cm |
| 5 May 2026, 11:19 | 465 | 465 µS/cm |
| 29 Apr 2026, 10:13 | 465 | 465 µS/cm |
| 4 Mar 2026, 11:36 | 445 | 445 µS/cm |
| 5 Feb 2026, 11:25 | 375 | 375 µS/cm |
| 5 Jan 2026, 11:24 | 513 | 513 µS/cm |
| 1 Dec 2025, 13:04 | 743 | 743 µS/cm |
| 6 Nov 2025, 11:52 | 677 | 677 µS/cm |
| 2 Oct 2025, 14:04 | 472 | 472 µS/cm |
| 4 Sep 2025, 11:37 | 435 | 435 µS/cm |
| 7 Aug 2025, 12:28 | 752 | 752 µS/cm |
| 3 Jul 2025, 10:59 | 510 | 510 µS/cm |
| 5 Jun 2025, 12:01 | 465 | 465 µS/cm |
| 15 May 2025, 11:55 | 472 | 472 µS/cm |
| 10 Apr 2025, 10:44 | 466 | 466 µS/cm |
| 10 Mar 2025, 12:36 | 499 | 499 µS/cm |
| 20 Feb 2025, 12:00 | 543 | 543 µS/cm |
| 23 Jan 2025, 12:16 | 516 | 516 µS/cm |
| 9 Dec 2024, 11:45 | 418 | 418 µS/cm |
| 6 Nov 2024, 11:49 | 501 | 501 µS/cm |
| 2 Oct 2024, 11:41 | 378 | 378 µS/cm |
| 25 Sep 2024, 12:42 | 417 | 417 µS/cm |
| 30 Aug 2024, 10:13 | 504 | 504 µS/cm |
| 25 Jul 2024, 11:12 | 558 | 558 µS/cm |
| 27 Jun 2024, 12:54 | 533 | 533 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
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 27 | Jun 2024 – Aug 2026 | 65.7% 13 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Jun 2024 – Aug 2026 | 6.05 mg/l 13 Aug 2026 |
| Temperature of Water 0076 | River water | 27 | Jun 2024 – Aug 2026 | 19.2 °C 13 Aug 2026 |
| pH 0061 | River water | 27 | Jun 2024 – Aug 2026 | 7.6 13 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jun 2024 – Aug 2026 | 0.037 mg/l 13 Aug 2026 |
| Nitrate as N 0117 | River water | 26 | Jun 2024 – Aug 2026 | 2.39 mg/l 13 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Jun 2024 – Aug 2026 | 0.052 mg/l 13 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Jun 2024 – Aug 2026 | 472 µS/cm 13 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Aug 2026 | 130 mg/l 13 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jun 2024 – Aug 2026 | 0.00054 mg/l 13 Aug 2026 |
| Nitrite as N 0118 | River water | 27 | Jun 2024 – Aug 2026 | 0.015 mg/l 13 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jun 2024 – Aug 2026 | 2.4 mg/l 13 Aug 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.