Farnham Park tributary above Wey (N)
EA name: FARNHAM PARK TRIBUTARY ABOVE WEY (N)
Environment Agency sampling point TH-PWER0126 · 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
- 6 Mar 2026, 11:447 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
- 28 since 9 Oct 2023 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 485320, 147210As published, to the nearest 10 m. Open in a map
- River, by its own name
- Farnham Park
- River, by the map
- Not placedTwo watercourses within reach (13 m and 41 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Environmental monitoring statutory (EU directives) (28 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.1%
Sampled 6 Mar 2026, 7 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 93.1 | 93.1% |
| 4 Feb 2026, 13:08 | 88.8 | 88.8% |
| 8 Jan 2026, 13:05 | 90.4 | 90.4% |
| 9 Dec 2025, 13:25 | 84.8 | 84.8% |
| 19 Nov 2025, 11:40 | 89.8 | 89.8% |
| 13 Oct 2025, 12:55 | 85.9 | 85.9% |
| 26 Sep 2025, 12:21 | 88.7 | 88.7% |
| 27 Aug 2025, 10:48 | 87.2 | 87.2% |
| 16 Jul 2025, 14:32 | 91.7 | 91.7% |
| 2 Jun 2025, 14:51 | 93.3 | 93.3% |
| 6 May 2025, 16:30 | 91.6 | 91.6% |
| 7 Apr 2025, 12:39 | 92.5 | 92.5% |
| 13 Mar 2025, 11:14 | 96.2 | 96.2% |
| 12 Feb 2025, 12:54 | 93.9 | 93.9% |
| 9 Jan 2025, 14:47 | 94.9 | 94.9% |
| 12 Dec 2024, 14:58 | 98.3 | 98.3% |
| 22 Nov 2024, 14:10 | 94.1 | 94.1% |
| 21 Oct 2024, 11:54 | 95.5 | 95.5% |
| 11 Sep 2024, 17:18 | 94.1 | 94.1% |
| 22 Aug 2024, 13:30 | 89.5 | 89.5% |
| 3 Jul 2024, 17:31 | 90.1 | 90.1% |
| 6 Jun 2024, 10:45 | 91.7 | 91.7% |
| 5 Mar 2024, 12:01 | 92.8 | 92.8% |
| 7 Feb 2024, 11:12 | 92.5 | 92.5% |
| 22 Jan 2024, 10:25 | 95 | 95% |
| 6 Dec 2023, 11:35 | 94.8 | 94.8% |
| 8 Nov 2023, 13:06 | 92.7 | 92.7% |
| 9 Oct 2023, 11:22 | 88.4 | 88.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.1 mg/l
Sampled 6 Mar 2026, 7 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 10.1 | 10.1 mg/l |
| 4 Feb 2026, 13:08 | 10.1 | 10.1 mg/l |
| 8 Jan 2026, 13:05 | 10.3 | 10.3 mg/l |
| 9 Dec 2025, 13:25 | 9.06 | 9.06 mg/l |
| 19 Nov 2025, 11:40 | 9.81 | 9.81 mg/l |
| 13 Oct 2025, 12:55 | 8.53 | 8.53 mg/l |
| 26 Sep 2025, 12:21 | 8.86 | 8.86 mg/l |
| 27 Aug 2025, 10:48 | 8.23 | 8.23 mg/l |
| 16 Jul 2025, 14:32 | 8.52 | 8.52 mg/l |
| 2 Jun 2025, 14:51 | 9.18 | 9.18 mg/l |
| 6 May 2025, 16:30 | 9.44 | 9.44 mg/l |
| 7 Apr 2025, 12:39 | 9.79 | 9.79 mg/l |
| 13 Mar 2025, 11:14 | 10.7 | 10.7 mg/l |
| 12 Feb 2025, 12:54 | 10.7 | 10.7 mg/l |
| 9 Jan 2025, 14:47 | 11 | 11 mg/l |
| 12 Dec 2024, 14:58 | 11.4 | 11.4 mg/l |
| 22 Nov 2024, 14:10 | 10.5 | 10.5 mg/l |
| 21 Oct 2024, 11:54 | 9.86 | 9.86 mg/l |
| 11 Sep 2024, 17:18 | 9.22 | 9.22 mg/l |
| 22 Aug 2024, 13:30 | 8.68 | 8.68 mg/l |
| 3 Jul 2024, 17:31 | 8.96 | 8.96 mg/l |
| 6 Jun 2024, 10:45 | 9.3 | 9.3 mg/l |
| 5 Mar 2024, 12:01 | 10.4 | 10.4 mg/l |
| 7 Feb 2024, 11:12 | 10.2 | 10.2 mg/l |
| 22 Jan 2024, 10:25 | 11.1 | 11.1 mg/l |
| 6 Dec 2023, 11:35 | 10.7 | 10.7 mg/l |
| 8 Nov 2023, 13:06 | 9.79 | 9.79 mg/l |
| 9 Oct 2023, 11:22 | 8.59 | 8.59 mg/l |
Water temperature
code 0076 · °C
11.5 °C
Sampled 6 Mar 2026, 7 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 11.5 | 11.5 °C |
| 4 Feb 2026, 13:08 | 9.8 | 9.8 °C |
| 8 Jan 2026, 13:05 | 9.7 | 9.7 °C |
| 9 Dec 2025, 13:25 | 12.3 | 12.3 °C |
| 19 Nov 2025, 11:40 | 11.3 | 11.3 °C |
| 13 Oct 2025, 12:55 | 15.6 | 15.6 °C |
| 26 Sep 2025, 12:21 | 15.3 | 15.3 °C |
| 27 Aug 2025, 10:48 | 18 | 18 °C |
| 16 Jul 2025, 14:32 | 18.8 | 18.8 °C |
| 2 Jun 2025, 14:51 | 16 | 16 °C |
| 6 May 2025, 16:30 | 13.9 | 13.9 °C |
| 7 Apr 2025, 12:39 | 12.7 | 12.7 °C |
| 13 Mar 2025, 11:14 | 10.7 | 10.7 °C |
| 12 Feb 2025, 12:54 | 9.7 | 9.7 °C |
| 9 Jan 2025, 14:47 | 8.8 | 8.8 °C |
| 12 Dec 2024, 14:58 | 8.7 | 8.7 °C |
| 22 Nov 2024, 14:10 | 10.6 | 10.6 °C |
| 21 Oct 2024, 11:54 | 13.8 | 13.8 °C |
| 11 Sep 2024, 17:18 | 16.2 | 16.2 °C |
| 22 Aug 2024, 13:30 | 16.7 | 16.7 °C |
| 3 Jul 2024, 17:31 | 15.5 | 15.5 °C |
| 6 Jun 2024, 10:45 | 14.6 | 14.6 °C |
| 5 Mar 2024, 12:01 | 10.4 | 10.4 °C |
| 7 Feb 2024, 11:12 | 10.8 | 10.8 °C |
| 22 Jan 2024, 10:25 | 8.6 | 8.6 °C |
| 6 Dec 2023, 11:35 | 10 | 10 °C |
| 8 Nov 2023, 13:06 | 12.8 | 12.8 °C |
| 9 Oct 2023, 11:22 | 16.6 | 16.6 °C |
pH
code 0061
7.75
Sampled 6 Mar 2026, 7 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 7.75 | 7.75 |
| 4 Feb 2026, 13:08 | 7.59 | 7.59 |
| 8 Jan 2026, 13:05 | 7.63 | 7.63 |
| 9 Dec 2025, 13:25 | 7.4 | 7.4 |
| 19 Nov 2025, 11:40 | 7.33 | 7.33 |
| 13 Oct 2025, 12:55 | 7.63 | 7.63 |
| 26 Sep 2025, 12:21 | 7.71 | 7.71 |
| 27 Aug 2025, 10:48 | 7.7 | 7.7 |
| 16 Jul 2025, 14:32 | 7.85 | 7.85 |
| 2 Jun 2025, 14:51 | 7.73 | 7.73 |
| 6 May 2025, 16:30 | 7.74 | 7.74 |
| 7 Apr 2025, 12:39 | 7.76 | 7.76 |
| 13 Mar 2025, 11:14 | 7.67 | 7.67 |
| 12 Feb 2025, 12:54 | 7.62 | 7.62 |
| 9 Jan 2025, 14:47 | 7.7 | 7.7 |
| 12 Dec 2024, 14:58 | 8.42 | 8.42 |
| 22 Nov 2024, 14:10 | 7.67 | 7.67 |
| 21 Oct 2024, 11:54 | 7.78 | 7.78 |
| 11 Sep 2024, 17:18 | 7.58 | 7.58 |
| 22 Aug 2024, 13:30 | 7.83 | 7.83 |
| 3 Jul 2024, 17:31 | 7.97 | 7.97 |
| 6 Jun 2024, 10:45 | 7.84 | 7.84 |
| 5 Mar 2024, 12:01 | 7.76 | 7.76 |
| 7 Feb 2024, 11:12 | 7.73 | 7.73 |
| 22 Jan 2024, 10:25 | 8.04 | 8.04 |
| 6 Dec 2023, 11:35 | 7.64 | 7.64 |
| 8 Nov 2023, 13:06 | 7.51 | 7.51 |
| 9 Oct 2023, 11:22 | 7.47 | 7.47 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 6 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 13:08 | 1.4 | 1.4 mg/l |
| 8 Jan 2026, 13:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Dec 2025, 13:25 | 0.89 | 0.89 mg/l |
| 19 Nov 2025, 11:40 | 0.062 | 0.062 mg/l |
| 13 Oct 2025, 12:55 | 0.041 | 0.041 mg/l |
| 26 Sep 2025, 12:21 | 0.058 | 0.058 mg/l |
| 27 Aug 2025, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2025, 14:32 | 0.03 | 0.03 mg/l |
| 2 Jun 2025, 14:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 16:30 | 0.053 | 0.053 mg/l |
| 13 Mar 2025, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Feb 2025, 12:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jan 2025, 14:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Dec 2024, 14:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Nov 2024, 14:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Oct 2024, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Sep 2024, 17:18 | 0.036 | 0.036 mg/l |
| 22 Aug 2024, 13:30 | 0.14 | 0.14 mg/l |
| 3 Jul 2024, 17:31 | 0.063 | 0.063 mg/l |
| 6 Jun 2024, 10:45 | 0.036 | 0.036 mg/l |
| 5 Mar 2024, 12:01 | 0.032 | 0.032 mg/l |
| 7 Feb 2024, 11:12 | 0.033 | 0.033 mg/l |
| 22 Jan 2024, 10:25 | 0.044 | 0.044 mg/l |
| 6 Dec 2023, 11:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Nov 2023, 13:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Oct 2023, 11:22 | 0.053 | 0.053 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18 mg/l
Sampled 6 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 18 | 18 mg/l |
| 4 Feb 2026, 13:08 | 8.43 | 8.43 mg/l |
| 8 Jan 2026, 13:05 | 21 | 21 mg/l |
| 9 Dec 2025, 13:25 | 11.9 | 11.9 mg/l |
| 19 Nov 2025, 11:40 | 20 | 20 mg/l |
| 13 Oct 2025, 12:55 | 16 | 16 mg/l |
| 26 Sep 2025, 12:21 | 18 | 18 mg/l |
| 27 Aug 2025, 10:48 | 20 | 20 mg/l |
| 16 Jul 2025, 14:32 | 14 | 14 mg/l |
| 2 Jun 2025, 14:51 | 16 | 16 mg/l |
| 6 May 2025, 16:30 | 21 | 21 mg/l |
| 13 Mar 2025, 11:14 | 23 | 23 mg/l |
| 12 Feb 2025, 12:54 | 16 | 16 mg/l |
| 9 Jan 2025, 14:47 | 13 | 13 mg/l |
| 12 Dec 2024, 14:58 | 8.89 | 8.89 mg/l |
| 22 Nov 2024, 14:10 | 17 | 17 mg/l |
| 21 Oct 2024, 11:54 | 13 | 13 mg/l |
| 11 Sep 2024, 17:18 | 24 | 24 mg/l |
| 22 Aug 2024, 13:30 | 13 | 13 mg/l |
| 3 Jul 2024, 17:31 | 13 | 13 mg/l |
| 6 Jun 2024, 10:45 | 7.79 | 7.79 mg/l |
| 5 Mar 2024, 12:01 | 12 | 12 mg/l |
| 7 Feb 2024, 11:12 | 14 | 14 mg/l |
| 22 Jan 2024, 10:25 | 5.67 | 5.67 mg/l |
| 6 Dec 2023, 11:35 | 14 | 14 mg/l |
| 8 Nov 2023, 13:06 | 16 | 16 mg/l |
| 9 Oct 2023, 11:22 | 31 | 31 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.27 mg/l
Sampled 6 Mar 2026, 7 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 0.27 | 0.27 mg/l |
| 4 Feb 2026, 13:08 | 0.34 | 0.34 mg/l |
| 8 Jan 2026, 13:05 | 0.37 | 0.37 mg/l |
| 9 Dec 2025, 13:25 | 0.47 | 0.47 mg/l |
| 19 Nov 2025, 11:40 | 0.22 | 0.22 mg/l |
| 13 Oct 2025, 12:55 | 0.18 | 0.18 mg/l |
| 26 Sep 2025, 12:21 | 0.16 | 0.16 mg/l |
| 27 Aug 2025, 10:48 | 0.11 | 0.11 mg/l |
| 16 Jul 2025, 14:32 | 0.24 | 0.24 mg/l |
| 2 Jun 2025, 14:51 | 0.18 | 0.18 mg/l |
| 6 May 2025, 16:30 | 0.19 | 0.19 mg/l |
| 13 Mar 2025, 11:14 | 0.1 | 0.1 mg/l |
| 12 Feb 2025, 12:54 | 0.092 | 0.092 mg/l |
| 9 Jan 2025, 14:47 | 0.11 | 0.11 mg/l |
| 12 Dec 2024, 14:58 | 0.24 | 0.24 mg/l |
| 22 Nov 2024, 14:10 | 0.14 | 0.14 mg/l |
| 21 Oct 2024, 11:54 | 0.21 | 0.21 mg/l |
| 11 Sep 2024, 17:18 | 0.54 | 0.54 mg/l |
| 22 Aug 2024, 13:30 | 0.31 | 0.31 mg/l |
| 3 Jul 2024, 17:31 | 0.38 | 0.38 mg/l |
| 6 Jun 2024, 10:45 | 0.29 | 0.29 mg/l |
| 5 Mar 2024, 12:01 | 0.14 | 0.14 mg/l |
| 7 Feb 2024, 11:12 | 0.27 | 0.27 mg/l |
| 22 Jan 2024, 10:25 | 0.23 | 0.23 mg/l |
| 6 Dec 2023, 11:35 | 0.21 | 0.21 mg/l |
| 8 Nov 2023, 13:06 | 0.22 | 0.22 mg/l |
| 9 Oct 2023, 11:22 | 0.57 | 0.57 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
728 µS/cm
Sampled 6 Mar 2026, 7 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2026, 11:44 | 728 | 728 µS/cm |
| 4 Feb 2026, 13:08 | 505 | 505 µS/cm |
| 8 Jan 2026, 13:05 | 747 | 747 µS/cm |
| 9 Dec 2025, 13:25 | 570 | 570 µS/cm |
| 19 Nov 2025, 11:40 | 746 | 746 µS/cm |
| 13 Oct 2025, 12:55 | 830 | 830 µS/cm |
| 26 Sep 2025, 12:21 | 822 | 822 µS/cm |
| 27 Aug 2025, 10:48 | 848 | 848 µS/cm |
| 16 Jul 2025, 14:32 | 818 | 818 µS/cm |
| 2 Jun 2025, 14:51 | 790 | 790 µS/cm |
| 6 May 2025, 16:30 | 777 | 777 µS/cm |
| 7 Apr 2025, 12:39 | 784 | 784 µS/cm |
| 13 Mar 2025, 11:14 | 760 | 760 µS/cm |
| 12 Feb 2025, 12:54 | 680 | 680 µS/cm |
| 9 Jan 2025, 14:47 | 663 | 663 µS/cm |
| 12 Dec 2024, 14:58 | 603 | 603 µS/cm |
| 22 Nov 2024, 14:10 | 716 | 716 µS/cm |
| 21 Oct 2024, 11:54 | 603 | 603 µS/cm |
| 11 Sep 2024, 17:18 | 687 | 687 µS/cm |
| 22 Aug 2024, 13:30 | 794 | 794 µS/cm |
| 3 Jul 2024, 17:31 | 791 | 791 µS/cm |
| 6 Jun 2024, 10:45 | 754 | 754 µS/cm |
| 5 Mar 2024, 12:01 | 658 | 658 µS/cm |
| 7 Feb 2024, 11:12 | 702 | 702 µS/cm |
| 22 Jan 2024, 10:25 | 607 | 607 µS/cm |
| 6 Dec 2023, 11:35 | 614 | 614 µS/cm |
| 8 Nov 2023, 13:06 | 602 | 602 µS/cm |
| 9 Oct 2023, 11:22 | 849 | 849 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 | 28 | Oct 2023 – Mar 2026 | 93.1% 6 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Oct 2023 – Mar 2026 | 10.1 mg/l 6 Mar 2026 |
| Temperature of Water 0076 | River water | 28 | Oct 2023 – Mar 2026 | 11.5 °C 6 Mar 2026 |
| pH 0061 | River water | 28 | Oct 2023 – Mar 2026 | 7.75 6 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – Mar 2026 | below 0.03 mg/l 6 Mar 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – Mar 2026 | 18 mg/l 6 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Mar 2026 | 0.27 mg/l 6 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Oct 2023 – Mar 2026 | 728 µS/cm 6 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Oct 2023 – Mar 2026 | 170 mg/l 6 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Oct 2023 – Mar 2026 | below 0.00035 mg/l 6 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Oct 2023 – Mar 2026 | 1.7 mg/l 6 Mar 2026 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – Mar 2026 | 0.013 mg/l 6 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Mar 2026 | 18 mg/l 6 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.