Pyestock tributary at Iveley Road, Farnborough
EA name: PYESTOCK TRIBUTARY AT IVELEY ROAD, FARNB (also listed as “PYESTOCK TRIBUTARY AT IVELEY ROAD, FARNBOROUGH”)
Environment Agency sampling point TH-PLDR0058 · 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
- 10 Aug 2026, 11:5752 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 3 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 485250, 154850As published, to the nearest 10 m. Open in a map
- River, by its own name
- Pyestock
- River, by the map
- Not placedIts name gives Pyestock; the only line close by, 2 m away, is Iveley Brook and is not traced into it. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Environmental monitoring statutory (EU directives) (29 samples)
3 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
49.5%
Sampled 15 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 49.5 | 49.5% |
| 10 Apr 2026, 09:56 | 69.1 | 69.1% |
| 18 Mar 2026, 10:40 | 61.7 | 61.7% |
| 16 Feb 2026, 11:47 | 73.7 | 73.7% |
| 6 Jan 2026, 13:42 | 66.6 | 66.6% |
| 11 Dec 2025, 10:53 | 63.5 | 63.5% |
| 5 Nov 2025, 10:04 | 32 | 32% |
| 13 Oct 2025, 09:31 | 27.3 | 27.3% |
| 11 Sep 2025, 10:10 | 41.4 | 41.4% |
| 1 Aug 2025, 08:50 | 41.5 | 41.5% |
| 14 Jul 2025, 11:58 | 25 | 25% |
| 25 Jun 2025, 10:53 | 33.7 | 33.7% |
| 12 May 2025, 09:55 | 50.9 | 50.9% |
| 22 Apr 2025, 14:27 | 47.4 | 47.4% |
| 5 Mar 2025, 11:52 | 59.3 | 59.3% |
| 10 Feb 2025, 12:05 | 76.2 | 76.2% |
| 10 Jan 2025, 12:36 | 72.4 | 72.4% |
| 5 Dec 2024, 09:50 | 66.3 | 66.3% |
| 21 Nov 2024, 10:33 | 58.3 | 58.3% |
| 25 Oct 2024, 13:24 | 34 | 34% |
| 12 Sep 2024, 10:26 | 43.4 | 43.4% |
| 12 Aug 2024, 11:20 | 26.8 | 26.8% |
| 25 Jul 2024, 13:34 | 46.2 | 46.2% |
| 27 Jun 2024, 12:32 | 30.4 | 30.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.68 mg/l
Sampled 15 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 5.68 | 5.68 mg/l |
| 10 Apr 2026, 09:56 | 7.86 | 7.86 mg/l |
| 18 Mar 2026, 10:40 | 6.93 | 6.93 mg/l |
| 16 Feb 2026, 11:47 | 8.8 | 8.8 mg/l |
| 6 Jan 2026, 13:42 | 8.7 | 8.7 mg/l |
| 11 Dec 2025, 10:53 | 7.29 | 7.29 mg/l |
| 5 Nov 2025, 10:04 | 3.37 | 3.37 mg/l |
| 13 Oct 2025, 09:31 | 2.95 | 2.95 mg/l |
| 11 Sep 2025, 10:10 | 4.24 | 4.24 mg/l |
| 1 Aug 2025, 08:50 | 4.09 | 4.09 mg/l |
| 14 Jul 2025, 11:58 | 2.37 | 2.37 mg/l |
| 25 Jun 2025, 10:53 | 3.3 | 3.3 mg/l |
| 12 May 2025, 09:55 | 5.2 | 5.2 mg/l |
| 22 Apr 2025, 14:27 | 5 | 5 mg/l |
| 5 Mar 2025, 11:52 | 7.33 | 7.33 mg/l |
| 10 Feb 2025, 12:05 | 9.55 | 9.55 mg/l |
| 10 Jan 2025, 12:36 | 9.53 | 9.53 mg/l |
| 5 Dec 2024, 09:50 | 7.43 | 7.43 mg/l |
| 21 Nov 2024, 10:33 | 7.14 | 7.14 mg/l |
| 25 Oct 2024, 13:24 | 3.58 | 3.58 mg/l |
| 12 Sep 2024, 10:26 | 4.61 | 4.61 mg/l |
| 12 Aug 2024, 11:20 | 2.54 | 2.54 mg/l |
| 25 Jul 2024, 13:34 | 4.55 | 4.55 mg/l |
| 27 Jun 2024, 12:32 | 3.02 | 3.02 mg/l |
Water temperature
code 0076 · °C
9.2 °C
Sampled 15 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 9.2 | 9.2 °C |
| 10 Apr 2026, 09:56 | 9.6 | 9.6 °C |
| 18 Mar 2026, 10:40 | 10.1 | 10.1 °C |
| 16 Feb 2026, 11:47 | 7.6 | 7.6 °C |
| 6 Jan 2026, 13:42 | 4.1 | 4.1 °C |
| 11 Dec 2025, 10:53 | 9.2 | 9.2 °C |
| 5 Nov 2025, 10:04 | 12.9 | 12.9 °C |
| 13 Oct 2025, 09:31 | 11.8 | 11.8 °C |
| 11 Sep 2025, 10:10 | 14.2 | 14.2 °C |
| 1 Aug 2025, 08:50 | 16 | 16 °C |
| 14 Jul 2025, 11:58 | 17.9 | 17.9 °C |
| 25 Jun 2025, 10:53 | 16.2 | 16.2 °C |
| 12 May 2025, 09:55 | 14.3 | 14.3 °C |
| 22 Apr 2025, 14:27 | 12.8 | 12.8 °C |
| 5 Mar 2025, 11:52 | 6.2 | 6.2 °C |
| 10 Feb 2025, 12:05 | 5.7 | 5.7 °C |
| 10 Jan 2025, 12:36 | 3.8 | 3.8 °C |
| 5 Dec 2024, 09:50 | 10.2 | 10.2 °C |
| 21 Nov 2024, 10:33 | 6.6 | 6.6 °C |
| 25 Oct 2024, 13:24 | 12.9 | 12.9 °C |
| 12 Sep 2024, 10:26 | 12.5 | 12.5 °C |
| 12 Aug 2024, 11:20 | 17.8 | 17.8 °C |
| 25 Jul 2024, 13:34 | 16 | 16 °C |
| 27 Jun 2024, 12:32 | 15.5 | 15.5 °C |
pH
code 0061
6.54
Sampled 15 May 2026, 5 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 6.54 | 6.54 |
| 10 Apr 2026, 09:56 | 6.92 | 6.92 |
| 18 Mar 2026, 10:40 | 6.57 | 6.57 |
| 16 Feb 2026, 11:47 | 6.61 | 6.61 |
| 6 Jan 2026, 13:42 | 6.4 | 6.4 |
| 11 Dec 2025, 10:53 | 6.53 | 6.53 |
| 5 Nov 2025, 10:04 | 6.43 | 6.43 |
| 13 Oct 2025, 09:31 | 6.66 | 6.66 |
| 11 Sep 2025, 10:10 | 6.7 | 6.7 |
| 1 Aug 2025, 08:50 | 6.74 | 6.74 |
| 14 Jul 2025, 11:58 | 6.75 | 6.75 |
| 25 Jun 2025, 10:53 | 6.5 | 6.5 |
| 12 May 2025, 09:55 | 6.8 | 6.8 |
| 22 Apr 2025, 14:27 | 6.55 | 6.55 |
| 5 Mar 2025, 11:52 | 6.62 | 6.62 |
| 10 Feb 2025, 12:05 | 6.69 | 6.69 |
| 10 Jan 2025, 12:36 | 6.54 | 6.54 |
| 5 Dec 2024, 09:50 | 6.65 | 6.65 |
| 21 Nov 2024, 10:33 | 6.5 | 6.5 |
| 25 Oct 2024, 13:24 | 6.14 | 6.14 |
| 12 Sep 2024, 10:26 | 6.3 | 6.3 |
| 12 Aug 2024, 11:20 | 6.73 | 6.73 |
| 25 Jul 2024, 13:34 | 6.88 | 6.88 |
| 27 Jun 2024, 12:32 | 6.62 | 6.62 |
| 10 Jan 2024, 12:19 | 6.75 | 6.75 |
| 3 Oct 2023, 09:52 | 6.63 | 6.63 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.33 mg/l
Sampled 15 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 0.33 | 0.33 mg/l |
| 10 Apr 2026, 09:56 | 0.16 | 0.16 mg/l |
| 18 Mar 2026, 10:40 | 0.12 | 0.12 mg/l |
| 16 Feb 2026, 11:47 | 0.073 | 0.073 mg/l |
| 6 Jan 2026, 13:42 | 0.28 | 0.28 mg/l |
| 11 Dec 2025, 10:53 | 0.13 | 0.13 mg/l |
| 5 Nov 2025, 10:04 | 0.11 | 0.11 mg/l |
| 13 Oct 2025, 09:31 | 0.65 | 0.65 mg/l |
| 11 Sep 2025, 10:10 | 0.23 | 0.23 mg/l |
| 1 Aug 2025, 08:50 | 0.41 | 0.41 mg/l |
| 14 Jul 2025, 11:58 | 1.1 | 1.1 mg/l |
| 25 Jun 2025, 10:53 | 0.36 | 0.36 mg/l |
| 12 May 2025, 09:55 | 0.52 | 0.52 mg/l |
| 22 Apr 2025, 14:27 | 0.27 | 0.27 mg/l |
| 5 Mar 2025, 11:52 | 0.28 | 0.28 mg/l |
| 10 Feb 2025, 12:05 | 0.2 | 0.2 mg/l |
| 10 Jan 2025, 12:36 | 0.13 | 0.13 mg/l |
| 21 Nov 2024, 10:33 | 0.24 | 0.24 mg/l |
| 25 Oct 2024, 13:24 | 0.29 | 0.29 mg/l |
| 12 Sep 2024, 10:26 | 0.27 | 0.27 mg/l |
| 12 Aug 2024, 11:20 | 0.86 | 0.86 mg/l |
| 25 Jul 2024, 13:34 | 0.71 | 0.71 mg/l |
| 27 Jun 2024, 12:32 | 0.85 | 0.85 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.525 mg/l
Sampled 15 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 0.525 | 0.525 mg/l |
| 10 Apr 2026, 09:56 | 0.246 | 0.246 mg/l |
| 18 Mar 2026, 10:40 | 0.336 | 0.336 mg/l |
| 16 Feb 2026, 11:47 | 0.506 | 0.506 mg/l |
| 6 Jan 2026, 13:42 | 0.366 | 0.366 mg/l |
| 11 Dec 2025, 10:53 | 0.844 | 0.844 mg/l |
| 5 Nov 2025, 10:04 | 0.38 | 0.38 mg/l |
| 13 Oct 2025, 09:31 | 0.253 | 0.253 mg/l |
| 11 Sep 2025, 10:10 | 0.356 | 0.356 mg/l |
| 1 Aug 2025, 08:50 | 1.45 | 1.45 mg/l |
| 14 Jul 2025, 11:58 | 0.283 | 0.283 mg/l |
| 25 Jun 2025, 10:53 | 0.442 | 0.442 mg/l |
| 12 May 2025, 09:55 | 0.671 | 0.671 mg/l |
| 22 Apr 2025, 14:27 | <0.196 | below 0.196 mg/l (not detected above this) |
| 5 Mar 2025, 11:52 | 0.246 | 0.246 mg/l |
| 10 Feb 2025, 12:05 | 0.646 | 0.646 mg/l |
| 10 Jan 2025, 12:36 | 0.486 | 0.486 mg/l |
| 21 Nov 2024, 10:33 | <0.196 | below 0.196 mg/l (not detected above this) |
| 25 Oct 2024, 13:24 | <0.196 | below 0.196 mg/l (not detected above this) |
| 12 Sep 2024, 10:26 | 0.246 | 0.246 mg/l |
| 12 Aug 2024, 11:20 | 0.207 | 0.207 mg/l |
| 25 Jul 2024, 13:34 | 0.956 | 0.956 mg/l |
| 27 Jun 2024, 12:32 | 2.75 | 2.75 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.037 mg/l
Sampled 15 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 0.037 | 0.037 mg/l |
| 10 Apr 2026, 09:56 | 0.035 | 0.035 mg/l |
| 18 Mar 2026, 10:40 | 0.035 | 0.035 mg/l |
| 16 Feb 2026, 11:47 | 0.028 | 0.028 mg/l |
| 6 Jan 2026, 13:42 | 0.027 | 0.027 mg/l |
| 11 Dec 2025, 10:53 | 0.028 | 0.028 mg/l |
| 5 Nov 2025, 10:04 | 0.024 | 0.024 mg/l |
| 13 Oct 2025, 09:31 | 0.04 | 0.04 mg/l |
| 11 Sep 2025, 10:10 | 0.043 | 0.043 mg/l |
| 1 Aug 2025, 08:50 | 0.038 | 0.038 mg/l |
| 14 Jul 2025, 11:58 | 0.07 | 0.07 mg/l |
| 25 Jun 2025, 10:53 | 0.1 | 0.1 mg/l |
| 12 May 2025, 09:55 | 0.048 | 0.048 mg/l |
| 22 Apr 2025, 14:27 | 0.056 | 0.056 mg/l |
| 5 Mar 2025, 11:52 | 0.047 | 0.047 mg/l |
| 10 Feb 2025, 12:05 | 0.025 | 0.025 mg/l |
| 10 Jan 2025, 12:36 | 0.034 | 0.034 mg/l |
| 21 Nov 2024, 10:33 | 0.032 | 0.032 mg/l |
| 25 Oct 2024, 13:24 | 0.018 | 0.018 mg/l |
| 12 Sep 2024, 10:26 | 0.037 | 0.037 mg/l |
| 12 Aug 2024, 11:20 | 0.048 | 0.048 mg/l |
| 25 Jul 2024, 13:34 | 0.065 | 0.065 mg/l |
| 27 Jun 2024, 12:32 | 0.039 | 0.039 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
304 µS/cm
Sampled 15 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 May 2026, 08:46 | 304 | 304 µS/cm |
| 10 Apr 2026, 09:56 | 347 | 347 µS/cm |
| 18 Mar 2026, 10:40 | 365 | 365 µS/cm |
| 16 Feb 2026, 11:47 | 328 | 328 µS/cm |
| 6 Jan 2026, 13:42 | 614 | 614 µS/cm |
| 11 Dec 2025, 10:53 | 426 | 426 µS/cm |
| 5 Nov 2025, 10:04 | 392 | 392 µS/cm |
| 13 Oct 2025, 09:31 | 379 | 379 µS/cm |
| 11 Sep 2025, 10:10 | 244 | 244 µS/cm |
| 1 Aug 2025, 08:50 | 232 | 232 µS/cm |
| 14 Jul 2025, 11:58 | 383 | 383 µS/cm |
| 25 Jun 2025, 10:53 | 353 | 353 µS/cm |
| 12 May 2025, 09:55 | 285 | 285 µS/cm |
| 22 Apr 2025, 14:27 | 347 | 347 µS/cm |
| 5 Mar 2025, 11:52 | 367 | 367 µS/cm |
| 10 Feb 2025, 12:05 | 429 | 429 µS/cm |
| 10 Jan 2025, 12:36 | 398 | 398 µS/cm |
| 5 Dec 2024, 09:50 | 353 | 353 µS/cm |
| 21 Nov 2024, 10:33 | 327 | 327 µS/cm |
| 25 Oct 2024, 13:24 | 346 | 346 µS/cm |
| 12 Sep 2024, 10:26 | 311 | 311 µS/cm |
| 12 Aug 2024, 11:20 | 307 | 307 µS/cm |
| 25 Jul 2024, 13:34 | 357 | 357 µS/cm |
| 27 Jun 2024, 12:32 | 359 | 359 µS/cm |
Everything measured here
18 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 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Jun 2024 – May 2026 | 49.5% 15 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jun 2024 – May 2026 | 5.68 mg/l 15 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 9.2 °C 15 May 2026 |
| pH 0061 | River water | 26 | Oct 2023 – May 2026 | 6.54 15 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jun 2024 – May 2026 | 0.33 mg/l 15 May 2026 |
| Nitrate as N 0117 | River water | 23 | Jun 2024 – May 2026 | 0.525 mg/l 15 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jun 2024 – May 2026 | 0.037 mg/l 15 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jun 2024 – May 2026 | 304 µS/cm 15 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Jun 2024 – May 2026 | 47 mg/l 15 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jun 2024 – May 2026 | 0.0002 mg/l 15 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 20 | Jun 2024 – Mar 2026 | below 3 mg/l 18 Mar 2026 |
| Cadmium, Dissolved 0106 | River water | 2 | Oct 2023 – Jan 2024 | 0.055 µg/l 10 Jan 2024 |
| Calcium, Dissolved 0239 | River water | 2 | Oct 2023 – Jan 2024 | 31 mg/l 10 Jan 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Oct 2023 – Jan 2024 | 14 mg/l 10 Jan 2024 |
| Magnesium, Dissolved 0235 | River water | 2 | Oct 2023 – Jan 2024 | 5.3 mg/l 10 Jan 2024 |
| Nitrite as N 0118 | River water | 23 | Jun 2024 – May 2026 | 0.015 mg/l 15 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jun 2024 – May 2026 | 0.54 mg/l 15 May 2026 |
| No flow /No sample 7668 | River water | 3 | Jun 2026 – Aug 2026 | No flow/discharge at sampling point 10 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.