Ehen at Bleach Green Bridge
EA name: EHEN @ BLEACH GREEN BRIDGE
Environment Agency sampling point NW-88022311 · 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
- 27 May 2026, 11:014 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
- 29 since 5 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 308492, 515360As published, to the nearest 1 m. Open in a map
- River, by its own name
- Ehen
- River, by the map
- River EhenPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Bleach Green Weir On the River Ehen · 0.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
108.4%
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | 108.4 | 108.4% |
| 9 Apr 2026, 13:04 | 102 | 102% |
| 23 Mar 2026, 10:10 | 100.7 | 100.7% |
| 24 Feb 2026, 10:43 | 102.1 | 102.1% |
| 10 Dec 2025, 13:39 | 97.9 | 97.9% |
| 12 Nov 2025, 12:02 | 100.5 | 100.5% |
| 23 Oct 2025, 12:20 | 99.7 | 99.7% |
| 24 Sep 2025, 14:20 | 97.6 | 97.6% |
| 7 Aug 2025, 11:17 | 100.7 | 100.7% |
| 11 Jul 2025, 11:36 | 104.9 | 104.9% |
| 18 Jun 2025, 13:11 | 107.2 | 107.2% |
| 13 May 2025, 10:24 | 104 | 104% |
| 7 Apr 2025, 08:54 | 102.6 | 102.6% |
| 17 Mar 2025, 12:32 | 103.5 | 103.5% |
| 18 Feb 2025, 12:16 | 101.7 | 101.7% |
| 30 Jan 2025, 13:45 | 97.4 | 97.4% |
| 6 Dec 2024, 11:44 | 99.3 | 99.3% |
| 20 Nov 2024, 12:18 | 94.5 | 94.5% |
| 16 Oct 2024, 11:03 | 100.4 | 100.4% |
| 26 Sep 2024, 13:15 | 103.7 | 103.7% |
| 29 Aug 2024, 08:57 | 99 | 99% |
| 24 Jul 2024, 12:53 | 103.1 | 103.1% |
| 17 Jun 2024, 13:07 | 103.8 | 103.8% |
| 11 Mar 2024, 14:35 | 99.2 | 99.2% |
| 5 Feb 2024, 10:50 | 98.2 | 98.2% |
| 4 Jan 2024, 12:04 | 99.9 | 99.9% |
| 11 Dec 2023, 12:36 | 98.5 | 98.5% |
| 2 Nov 2023, 10:58 | 100.7 | 100.7% |
| 5 Oct 2023, 10:53 | 98.8 | 98.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.6 mg/l
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | 10.6 | 10.6 mg/l |
| 9 Apr 2026, 13:04 | 11.9 | 11.9 mg/l |
| 23 Mar 2026, 10:10 | 12.3 | 12.3 mg/l |
| 24 Feb 2026, 10:43 | 12.8 | 12.8 mg/l |
| 10 Dec 2025, 13:39 | 11.5 | 11.5 mg/l |
| 12 Nov 2025, 12:02 | 11.1 | 11.1 mg/l |
| 23 Oct 2025, 12:20 | 11.1 | 11.1 mg/l |
| 24 Sep 2025, 14:20 | 10.1 | 10.1 mg/l |
| 7 Aug 2025, 11:17 | 9.85 | 9.85 mg/l |
| 11 Jul 2025, 11:36 | 10.1 | 10.1 mg/l |
| 18 Jun 2025, 13:11 | 10.3 | 10.3 mg/l |
| 13 May 2025, 10:24 | 10.3 | 10.3 mg/l |
| 7 Apr 2025, 08:54 | 12.2 | 12.2 mg/l |
| 17 Mar 2025, 12:32 | 12.6 | 12.6 mg/l |
| 18 Feb 2025, 12:16 | 13.2 | 13.2 mg/l |
| 30 Jan 2025, 13:45 | 12.5 | 12.5 mg/l |
| 6 Dec 2024, 11:44 | 11.7 | 11.7 mg/l |
| 20 Nov 2024, 12:18 | 11.6 | 11.6 mg/l |
| 16 Oct 2024, 11:03 | 10.7 | 10.7 mg/l |
| 26 Sep 2024, 13:15 | 11 | 11 mg/l |
| 29 Aug 2024, 08:57 | 10.1 | 10.1 mg/l |
| 24 Jul 2024, 12:53 | 9.86 | 9.86 mg/l |
| 17 Jun 2024, 13:07 | 10.5 | 10.5 mg/l |
| 11 Mar 2024, 14:35 | 12.2 | 12.2 mg/l |
| 5 Feb 2024, 10:50 | 12 | 12 mg/l |
| 4 Jan 2024, 12:04 | 12.1 | 12.1 mg/l |
| 11 Dec 2023, 12:36 | 12 | 12 mg/l |
| 2 Nov 2023, 10:58 | 11.5 | 11.5 mg/l |
| 5 Oct 2023, 10:53 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
16.5 °C
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | 16.5 | 16.5 °C |
| 9 Apr 2026, 13:04 | 8.7 | 8.7 °C |
| 23 Mar 2026, 10:10 | 6.8 | 6.8 °C |
| 24 Feb 2026, 10:43 | 5.8 | 5.8 °C |
| 10 Dec 2025, 13:39 | 8.4 | 8.4 °C |
| 12 Nov 2025, 12:02 | 10.8 | 10.8 °C |
| 23 Oct 2025, 12:20 | 10.5 | 10.5 °C |
| 24 Sep 2025, 14:20 | 13.5 | 13.5 °C |
| 7 Aug 2025, 11:17 | 16.3 | 16.3 °C |
| 11 Jul 2025, 11:36 | 17.2 | 17.2 °C |
| 18 Jun 2025, 13:11 | 17.1 | 17.1 °C |
| 13 May 2025, 10:24 | 15.5 | 15.5 °C |
| 7 Apr 2025, 08:54 | 7.7 | 7.7 °C |
| 17 Mar 2025, 12:32 | 6.9 | 6.9 °C |
| 18 Feb 2025, 12:16 | 4.4 | 4.4 °C |
| 30 Jan 2025, 13:45 | 4.7 | 4.7 °C |
| 6 Dec 2024, 11:44 | 8 | 8 °C |
| 20 Nov 2024, 12:18 | 6.5 | 6.5 °C |
| 16 Oct 2024, 11:03 | 12.2 | 12.2 °C |
| 26 Sep 2024, 13:15 | 12.7 | 12.7 °C |
| 29 Aug 2024, 08:57 | 14.2 | 14.2 °C |
| 24 Jul 2024, 12:53 | 17.4 | 17.4 °C |
| 17 Jun 2024, 13:07 | 14.8 | 14.8 °C |
| 11 Mar 2024, 14:35 | 6.5 | 6.5 °C |
| 5 Feb 2024, 10:50 | 6.6 | 6.6 °C |
| 4 Jan 2024, 12:04 | 7.1 | 7.1 °C |
| 11 Dec 2023, 12:36 | 6.7 | 6.7 °C |
| 2 Nov 2023, 10:58 | 9.4 | 9.4 °C |
| 5 Oct 2023, 10:53 | 13.2 | 13.2 °C |
pH
code 0061
7.15
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | 7.15 | 7.15 |
| 9 Apr 2026, 13:04 | 7.75 | 7.75 |
| 23 Mar 2026, 10:10 | 8.05 | 8.05 |
| 24 Feb 2026, 10:43 | 6.93 | 6.93 |
| 10 Dec 2025, 13:39 | 7.33 | 7.33 |
| 12 Nov 2025, 12:02 | 7.37 | 7.37 |
| 23 Oct 2025, 12:20 | 8.84 | 8.84 |
| 24 Sep 2025, 14:20 | 7.26 | 7.26 |
| 7 Aug 2025, 11:17 | 6.91 | 6.91 |
| 11 Jul 2025, 11:36 | 7.09 | 7.09 |
| 18 Jun 2025, 13:11 | 7.23 | 7.23 |
| 13 May 2025, 10:24 | 7.53 | 7.53 |
| 7 Apr 2025, 08:54 | 7.94 | 7.94 |
| 17 Mar 2025, 12:32 | 7.8 | 7.8 |
| 18 Feb 2025, 12:16 | 7.13 | 7.13 |
| 30 Jan 2025, 13:45 | 7.68 | 7.68 |
| 6 Dec 2024, 11:44 | 7.93 | 7.93 |
| 20 Nov 2024, 12:18 | 7.51 | 7.51 |
| 16 Oct 2024, 11:03 | 7.59 | 7.59 |
| 26 Sep 2024, 13:15 | 7.44 | 7.44 |
| 29 Aug 2024, 08:57 | 7.24 | 7.24 |
| 24 Jul 2024, 12:53 | 7.31 | 7.31 |
| 17 Jun 2024, 13:07 | 7.8 | 7.8 |
| 11 Mar 2024, 14:35 | 7.34 | 7.34 |
| 5 Feb 2024, 10:50 | 7.06 | 7.06 |
| 4 Jan 2024, 12:04 | 7.47 | 7.47 |
| 11 Dec 2023, 12:36 | 6.62 | 6.62 |
| 2 Nov 2023, 10:58 | 7.81 | 7.81 |
| 5 Oct 2023, 10:53 | 7.63 | 7.63 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.002 mg/l (not detected above this)
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | <0.002 | below 0.002 mg/l (not detected above this) |
| 9 Apr 2026, 13:04 | 0.0059 | 0.0059 mg/l |
| 23 Mar 2026, 10:10 | 0.005 | 0.005 mg/l |
| 24 Feb 2026, 10:43 | 0.01 | 0.01 mg/l |
| 10 Dec 2025, 13:39 | 0.012 | 0.012 mg/l |
| 12 Nov 2025, 12:02 | 0.019 | 0.019 mg/l |
| 23 Oct 2025, 12:20 | 0.011 | 0.011 mg/l |
| 24 Sep 2025, 14:20 | 0.0021 | 0.0021 mg/l |
| 7 Aug 2025, 11:17 | <0.002 | below 0.002 mg/l (not detected above this) |
| 11 Jul 2025, 11:36 | 0.0033 | 0.0033 mg/l |
| 18 Jun 2025, 13:11 | 0.0045 | 0.0045 mg/l |
| 13 May 2025, 10:24 | <0.002 | below 0.002 mg/l (not detected above this) |
| 7 Apr 2025, 08:54 | 0.0038 | 0.0038 mg/l |
| 17 Mar 2025, 12:32 | 0.0083 | 0.0083 mg/l |
| 18 Feb 2025, 12:16 | 0.012 | 0.012 mg/l |
| 30 Jan 2025, 13:45 | 0.011 | 0.011 mg/l |
| 6 Dec 2024, 11:44 | 0.014 | 0.014 mg/l |
| 20 Nov 2024, 12:18 | 0.013 | 0.013 mg/l |
| 16 Oct 2024, 11:03 | 0.0094 | 0.0094 mg/l |
| 26 Sep 2024, 13:15 | 0.02 | 0.02 mg/l |
| 29 Aug 2024, 08:57 | 0.0056 | 0.0056 mg/l |
| 24 Jul 2024, 12:53 | 0.0028 | 0.0028 mg/l |
| 17 Jun 2024, 13:07 | 0.0025 | 0.0025 mg/l |
| 11 Mar 2024, 14:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2024, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jan 2024, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Dec 2023, 12:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Nov 2023, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Oct 2023, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.229 mg/l
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | 0.229 | 0.229 mg/l |
| 9 Apr 2026, 13:04 | 0.269 | 0.269 mg/l |
| 23 Mar 2026, 10:10 | 0.269 | 0.269 mg/l |
| 24 Feb 2026, 10:43 | 0.269 | 0.269 mg/l |
| 10 Dec 2025, 13:39 | 0.239 | 0.239 mg/l |
| 12 Nov 2025, 12:02 | 0.233 | 0.233 mg/l |
| 23 Oct 2025, 12:20 | 0.219 | 0.219 mg/l |
| 24 Sep 2025, 14:20 | 0.209 | 0.209 mg/l |
| 7 Aug 2025, 11:17 | 0.199 | 0.199 mg/l |
| 11 Jul 2025, 11:36 | 0.229 | 0.229 mg/l |
| 18 Jun 2025, 13:11 | 0.249 | 0.249 mg/l |
| 13 May 2025, 10:24 | 0.259 | 0.259 mg/l |
| 7 Apr 2025, 08:54 | 0.287 | 0.287 mg/l |
| 17 Mar 2025, 12:32 | 0.289 | 0.289 mg/l |
| 18 Feb 2025, 12:16 | 0.279 | 0.279 mg/l |
| 30 Jan 2025, 13:45 | 0.279 | 0.279 mg/l |
| 6 Dec 2024, 11:44 | 0.229 | 0.229 mg/l |
| 20 Nov 2024, 12:18 | 0.199 | 0.199 mg/l |
| 16 Oct 2024, 11:03 | 0.169 | 0.169 mg/l |
| 26 Sep 2024, 13:15 | 0.149 | 0.149 mg/l |
| 29 Aug 2024, 08:57 | 0.149 | 0.149 mg/l |
| 24 Jul 2024, 12:53 | 0.157 | 0.157 mg/l |
| 17 Jun 2024, 13:07 | 0.199 | 0.199 mg/l |
| 11 Mar 2024, 14:35 | 0.266 | 0.266 mg/l |
| 5 Feb 2024, 10:50 | 0.276 | 0.276 mg/l |
| 4 Jan 2024, 12:04 | 0.306 | 0.306 mg/l |
| 11 Dec 2023, 12:36 | 0.216 | 0.216 mg/l |
| 2 Nov 2023, 10:58 | 0.266 | 0.266 mg/l |
| 5 Oct 2023, 10:53 | 0.216 | 0.216 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.001 mg/l (not detected above this)
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | <0.001 | below 0.001 mg/l (not detected above this) |
| 9 Apr 2026, 13:04 | <0.001 | below 0.001 mg/l (not detected above this) |
| 23 Mar 2026, 10:10 | <0.001 | below 0.001 mg/l (not detected above this) |
| 24 Feb 2026, 10:43 | <0.001 | below 0.001 mg/l (not detected above this) |
| 10 Dec 2025, 13:39 | <0.001 | below 0.001 mg/l (not detected above this) |
| 12 Nov 2025, 12:02 | <0.001 | below 0.001 mg/l (not detected above this) |
| 23 Oct 2025, 12:20 | <0.001 | below 0.001 mg/l (not detected above this) |
| 24 Sep 2025, 14:20 | <0.001 | below 0.001 mg/l (not detected above this) |
| 7 Aug 2025, 11:17 | <0.001 | below 0.001 mg/l (not detected above this) |
| 11 Jul 2025, 11:36 | <0.001 | below 0.001 mg/l (not detected above this) |
| 18 Jun 2025, 13:11 | 0.0015 | 0.0015 mg/l |
| 13 May 2025, 10:24 | <0.001 | below 0.001 mg/l (not detected above this) |
| 7 Apr 2025, 08:54 | <0.001 | below 0.001 mg/l (not detected above this) |
| 17 Mar 2025, 12:32 | <0.001 | below 0.001 mg/l (not detected above this) |
| 18 Feb 2025, 12:16 | <0.001 | below 0.001 mg/l (not detected above this) |
| 30 Jan 2025, 13:45 | <0.001 | below 0.001 mg/l (not detected above this) |
| 6 Dec 2024, 11:44 | <0.001 | below 0.001 mg/l (not detected above this) |
| 20 Nov 2024, 12:18 | <0.001 | below 0.001 mg/l (not detected above this) |
| 16 Oct 2024, 11:03 | <0.001 | below 0.001 mg/l (not detected above this) |
| 26 Sep 2024, 13:15 | 0.0011 | 0.0011 mg/l |
| 29 Aug 2024, 08:57 | <0.001 | below 0.001 mg/l (not detected above this) |
| 24 Jul 2024, 12:53 | <0.001 | below 0.001 mg/l (not detected above this) |
| 17 Jun 2024, 13:07 | <0.001 | below 0.001 mg/l (not detected above this) |
| 11 Mar 2024, 14:35 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Feb 2024, 10:50 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Jan 2024, 12:04 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Dec 2023, 12:36 | <0.01 | below 0.01 mg/l (not detected above this) |
| 2 Nov 2023, 10:58 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Oct 2023, 10:53 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
32 µS/cm
Sampled 27 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 May 2026, 11:01 | 32 | 32 µS/cm |
| 9 Apr 2026, 13:04 | 35 | 35 µS/cm |
| 23 Mar 2026, 10:10 | 33 | 33 µS/cm |
| 24 Feb 2026, 10:43 | 32 | 32 µS/cm |
| 10 Dec 2025, 13:39 | 34 | 34 µS/cm |
| 12 Nov 2025, 12:02 | 34 | 34 µS/cm |
| 23 Oct 2025, 12:20 | 80 | 80 µS/cm |
| 24 Sep 2025, 14:20 | 35 | 35 µS/cm |
| 7 Aug 2025, 11:17 | 35 | 35 µS/cm |
| 11 Jul 2025, 11:36 | 36 | 36 µS/cm |
| 18 Jun 2025, 13:11 | 37 | 37 µS/cm |
| 13 May 2025, 10:24 | 70 | 70 µS/cm |
| 7 Apr 2025, 08:54 | 40 | 40 µS/cm |
| 17 Mar 2025, 12:32 | 39 | 39 µS/cm |
| 18 Feb 2025, 12:16 | 34 | 34 µS/cm |
| 30 Jan 2025, 13:45 | 37 | 37 µS/cm |
| 6 Dec 2024, 11:44 | 36 | 36 µS/cm |
| 20 Nov 2024, 12:18 | 41 | 41 µS/cm |
| 16 Oct 2024, 11:03 | 39 | 39 µS/cm |
| 26 Sep 2024, 13:15 | 38 | 38 µS/cm |
| 29 Aug 2024, 08:57 | 33 | 33 µS/cm |
| 24 Jul 2024, 12:53 | 40 | 40 µS/cm |
| 17 Jun 2024, 13:07 | 41 | 41 µS/cm |
| 11 Mar 2024, 14:35 | 38 | 38 µS/cm |
| 5 Feb 2024, 10:50 | 40 | 40 µS/cm |
| 4 Jan 2024, 12:04 | 37 | 37 µS/cm |
| 11 Dec 2023, 12:36 | 36 | 36 µS/cm |
| 2 Nov 2023, 10:58 | 36 | 36 µS/cm |
| 5 Oct 2023, 10:53 | 35 | 35 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 29 | Oct 2023 – May 2026 | 108.4% 27 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – May 2026 | 10.6 mg/l 27 May 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – May 2026 | 16.5 °C 27 May 2026 |
| pH 0061 | River water | 29 | Oct 2023 – May 2026 | 7.15 27 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Oct 2023 – May 2026 | below 0.002 mg/l 27 May 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – May 2026 | 0.229 mg/l 27 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – May 2026 | below 0.001 mg/l 27 May 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – May 2026 | 32 µS/cm 27 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – May 2026 | below 8 mg/l 27 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – May 2026 | below 0.00001 mg/l 27 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | below 1 mg/l 27 May 2026 |
| Nitrite as N 0118 | River water | 29 | Oct 2023 – May 2026 | below 0.001 mg/l 27 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – May 2026 | 0.23 mg/l 27 May 2026 |
| Phosphorus, Total as P 0348 | River water | 22 | Jun 2024 – May 2026 | 0.0026 mg/l 27 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.