Wych Brook at Lower Wych Bridge
EA name: WYCH BROOK AT LOWER WYCH BRIDGE (also listed as “WYCH BROOK AT LOWER WYCH BRIDGE (FORMERLY KNOWN AS WORTHENBURY BROOK AT LOWER WYCH BRIDGE)”)
Environment Agency sampling point NW-1098 · 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
- 8 Sep 2026, 09:2723 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 17 since 17 Apr 2024 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 348494, 344422As published, to the nearest 1 m. Open in a map
- River, by its own name
- Wych Brook
- River, by the map
- Wych BrookPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Farndon On the Dee · 28 km along the river
- Why it was sampled
- Monitoring (national agency policy) (17 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.4%
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 87.4 | 87.4% |
| 7 Aug 2026, 13:17 | 99 | 99% |
| 24 Jul 2026, 18:33 | 100.6 | 100.6% |
| 29 Jun 2026, 11:19 | 92.1 | 92.1% |
| 11 May 2026, 10:38 | 101.6 | 101.6% |
| 27 Apr 2026, 11:02 | 102.8 | 102.8% |
| 5 Feb 2025, 11:50 | 87.4 | 87.4% |
| 20 Jan 2025, 11:48 | 97.2 | 97.2% |
| 5 Dec 2024, 10:00 | 94.4 | 94.4% |
| 20 Nov 2024, 10:04 | 93 | 93% |
| 14 Oct 2024, 12:04 | 93.6 | 93.6% |
| 19 Sep 2024, 13:00 | 95.9 | 95.9% |
| 28 Aug 2024, 11:03 | 95.2 | 95.2% |
| 17 Jul 2024, 11:27 | 95.5 | 95.5% |
| 17 Jun 2024, 12:55 | 98.2 | 98.2% |
| 23 May 2024, 12:06 | 83.7 | 83.7% |
| 17 Apr 2024, 10:26 | 96.2 | 96.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.91 mg/l
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 8.91 | 8.91 mg/l |
| 7 Aug 2026, 13:17 | 10.2 | 10.2 mg/l |
| 24 Jul 2026, 18:33 | 9.64 | 9.64 mg/l |
| 29 Jun 2026, 11:19 | 9.14 | 9.14 mg/l |
| 11 May 2026, 10:38 | 11.4 | 11.4 mg/l |
| 27 Apr 2026, 11:02 | 11.1 | 11.1 mg/l |
| 5 Feb 2025, 11:50 | 11 | 11 mg/l |
| 20 Jan 2025, 11:48 | 12.4 | 12.4 mg/l |
| 5 Dec 2024, 10:00 | 10.9 | 10.9 mg/l |
| 20 Nov 2024, 10:04 | 11.7 | 11.7 mg/l |
| 14 Oct 2024, 12:04 | 10.6 | 10.6 mg/l |
| 19 Sep 2024, 13:00 | 10.3 | 10.3 mg/l |
| 28 Aug 2024, 11:03 | 9.68 | 9.68 mg/l |
| 17 Jul 2024, 11:27 | 9.61 | 9.61 mg/l |
| 17 Jun 2024, 12:55 | 10.2 | 10.2 mg/l |
| 23 May 2024, 12:06 | 8.8 | 8.8 mg/l |
| 17 Apr 2024, 10:26 | 11.1 | 11.1 mg/l |
Water temperature
code 0076 · °C
14.4 °C
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 14.4 | 14.4 °C |
| 7 Aug 2026, 13:17 | 14.1 | 14.1 °C |
| 24 Jul 2026, 18:33 | 17.3 | 17.3 °C |
| 29 Jun 2026, 11:19 | 15.6 | 15.6 °C |
| 11 May 2026, 10:38 | 10 | 10 °C |
| 27 Apr 2026, 11:02 | 11.8 | 11.8 °C |
| 5 Feb 2025, 11:50 | 5.5 | 5.5 °C |
| 20 Jan 2025, 11:48 | 4.9 | 4.9 °C |
| 5 Dec 2024, 10:00 | 8.9 | 8.9 °C |
| 20 Nov 2024, 10:04 | 5.5 | 5.5 °C |
| 14 Oct 2024, 12:04 | 9.8 | 9.8 °C |
| 19 Sep 2024, 13:00 | 12.1 | 12.1 °C |
| 28 Aug 2024, 11:03 | 14.5 | 14.5 °C |
| 17 Jul 2024, 11:27 | 15 | 15 °C |
| 17 Jun 2024, 12:55 | 13.4 | 13.4 °C |
| 23 May 2024, 12:06 | 13 | 13 °C |
| 17 Apr 2024, 10:26 | 9 | 9 °C |
pH
code 0061
8.2
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 8.2 | 8.2 |
| 7 Aug 2026, 13:17 | 8.26 | 8.26 |
| 24 Jul 2026, 18:33 | 8.36 | 8.36 |
| 29 Jun 2026, 11:19 | 8.33 | 8.33 |
| 11 May 2026, 10:38 | 8.14 | 8.14 |
| 27 Apr 2026, 11:02 | 8.25 | 8.25 |
| 5 Feb 2025, 11:50 | 7.9 | 7.9 |
| 20 Jan 2025, 11:48 | 7.92 | 7.92 |
| 5 Dec 2024, 10:00 | 7.96 | 7.96 |
| 20 Nov 2024, 10:04 | 7.92 | 7.92 |
| 14 Oct 2024, 12:04 | 8.03 | 8.03 |
| 19 Sep 2024, 13:00 | 8.13 | 8.13 |
| 28 Aug 2024, 11:03 | 8.05 | 8.05 |
| 17 Jul 2024, 11:27 | 8.08 | 8.08 |
| 17 Jun 2024, 12:55 | 8.21 | 8.21 |
| 23 May 2024, 12:06 | 7.77 | 7.77 |
| 17 Apr 2024, 10:26 | 7.9 | 7.9 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.047 mg/l
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 0.047 | 0.047 mg/l |
| 7 Aug 2026, 13:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jul 2026, 18:33 | 0.031 | 0.031 mg/l |
| 29 Jun 2026, 11:19 | 0.39 | 0.39 mg/l |
| 11 May 2026, 10:38 | 0.11 | 0.11 mg/l |
| 27 Apr 2026, 11:02 | 0.039 | 0.039 mg/l |
| 5 Feb 2025, 11:50 | 0.33 | 0.33 mg/l |
| 20 Jan 2025, 11:48 | 0.28 | 0.28 mg/l |
| 5 Dec 2024, 10:00 | 0.19 | 0.19 mg/l |
| 20 Nov 2024, 10:04 | 0.46 | 0.46 mg/l |
| 14 Oct 2024, 12:04 | 0.13 | 0.13 mg/l |
| 19 Sep 2024, 13:00 | 0.11 | 0.11 mg/l |
| 28 Aug 2024, 11:03 | 0.048 | 0.048 mg/l |
| 17 Jul 2024, 11:27 | 0.07 | 0.07 mg/l |
| 17 Jun 2024, 12:55 | 0.048 | 0.048 mg/l |
| 23 May 2024, 12:06 | 0.36 | 0.36 mg/l |
| 17 Apr 2024, 10:26 | 0.32 | 0.32 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
12 mg/l
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 12 | 12 mg/l |
| 7 Aug 2026, 13:17 | 14 | 14 mg/l |
| 24 Jul 2026, 18:33 | 12.9 | 12.9 mg/l |
| 29 Jun 2026, 11:19 | 13.8 | 13.8 mg/l |
| 11 May 2026, 10:38 | 11.9 | 11.9 mg/l |
| 27 Apr 2026, 11:02 | 11.9 | 11.9 mg/l |
| 5 Feb 2025, 11:50 | 6.92 | 6.92 mg/l |
| 20 Jan 2025, 11:48 | 7.64 | 7.64 mg/l |
| 5 Dec 2024, 10:00 | 6.91 | 6.91 mg/l |
| 20 Nov 2024, 10:04 | 6.52 | 6.52 mg/l |
| 14 Oct 2024, 12:04 | 7.98 | 7.98 mg/l |
| 19 Sep 2024, 13:00 | 8.93 | 8.93 mg/l |
| 28 Aug 2024, 11:03 | 13 | 13 mg/l |
| 17 Jul 2024, 11:27 | 7.84 | 7.84 mg/l |
| 17 Jun 2024, 12:55 | 9.54 | 9.54 mg/l |
| 23 May 2024, 12:06 | 6.1 | 6.1 mg/l |
| 17 Apr 2024, 10:26 | 6.7 | 6.7 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.18 mg/l
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 0.18 | 0.18 mg/l |
| 7 Aug 2026, 13:17 | 0.15 | 0.15 mg/l |
| 24 Jul 2026, 18:33 | 0.17 | 0.17 mg/l |
| 29 Jun 2026, 11:19 | 0.21 | 0.21 mg/l |
| 11 May 2026, 10:38 | 0.12 | 0.12 mg/l |
| 27 Apr 2026, 11:02 | 0.11 | 0.11 mg/l |
| 5 Feb 2025, 11:50 | 0.28 | 0.28 mg/l |
| 20 Jan 2025, 11:48 | 0.17 | 0.17 mg/l |
| 5 Dec 2024, 10:00 | 0.22 | 0.22 mg/l |
| 20 Nov 2024, 10:04 | 0.21 | 0.21 mg/l |
| 14 Oct 2024, 12:04 | 0.16 | 0.16 mg/l |
| 19 Sep 2024, 13:00 | 0.16 | 0.16 mg/l |
| 28 Aug 2024, 11:03 | 0.19 | 0.19 mg/l |
| 17 Jul 2024, 11:27 | 0.19 | 0.19 mg/l |
| 17 Jun 2024, 12:55 | 0.17 | 0.17 mg/l |
| 23 May 2024, 12:06 | 0.22 | 0.22 mg/l |
| 17 Apr 2024, 10:26 | 0.31 | 0.31 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
948 µS/cm
Sampled 8 Sep 2026, 23 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:27 | 948 | 948 µS/cm |
| 7 Aug 2026, 13:17 | 1109 | 1109 µS/cm |
| 24 Jul 2026, 18:33 | 1113 | 1113 µS/cm |
| 29 Jun 2026, 11:19 | 1100 | 1100 µS/cm |
| 11 May 2026, 10:38 | 888 | 888 µS/cm |
| 27 Apr 2026, 11:02 | 102 | 102 µS/cm |
| 5 Feb 2025, 11:50 | 632 | 632 µS/cm |
| 20 Jan 2025, 11:48 | 631 | 631 µS/cm |
| 5 Dec 2024, 10:00 | 620 | 620 µS/cm |
| 20 Nov 2024, 10:04 | 607 | 607 µS/cm |
| 14 Oct 2024, 12:04 | 692 | 692 µS/cm |
| 19 Sep 2024, 13:00 | 828 | 828 µS/cm |
| 28 Aug 2024, 11:03 | 1044 | 1044 µS/cm |
| 17 Jul 2024, 11:27 | 713 | 713 µS/cm |
| 17 Jun 2024, 12:55 | 841 | 841 µS/cm |
| 23 May 2024, 12:06 | 493 | 493 µS/cm |
| 17 Apr 2024, 10:26 | 588 | 588 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 | 17 | Apr 2024 – Sep 2026 | 87.4% 8 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 17 | Apr 2024 – Sep 2026 | 8.91 mg/l 8 Sep 2026 |
| Temperature of Water 0076 | River water | 17 | Apr 2024 – Sep 2026 | 14.4 °C 8 Sep 2026 |
| pH 0061 | River water | 17 | Apr 2024 – Sep 2026 | 8.2 8 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 17 | Apr 2024 – Sep 2026 | 0.047 mg/l 8 Sep 2026 |
| Nitrate as N 0117 | River water | 17 | Apr 2024 – Sep 2026 | 12 mg/l 8 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 17 | Apr 2024 – Sep 2026 | 0.18 mg/l 8 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 17 | Apr 2024 – Sep 2026 | 948 µS/cm 8 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | Apr 2024 – Sep 2026 | 180 mg/l 8 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | Apr 2024 – Sep 2026 | 0.00118 mg/l 8 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 17 | Apr 2024 – Sep 2026 | below 4 mg/l 8 Sep 2026 |
| Nitrite as N 0118 | River water | 17 | Apr 2024 – Sep 2026 | 0.028 mg/l 8 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 17 | Apr 2024 – Sep 2026 | 12 mg/l 8 Sep 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.