Old Park watercourse at Whistley Bridge
EA name: OLD PARK W/C AT WHISTLEY BRIDGE
Environment Agency sampling point SW-Z9390201 · 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
- 2 Jul 2026, 14:173 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 30 since 25 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 398410, 160194As published, to the nearest 1 m. Open in a map
- River, by its own name
- Old Park West C
- River, by the map
- Not placedTwo watercourses within reach (3 m and 4 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
- Monitoring (national agency policy) (28 samples)
Environmental monitoring statutory (EU directives) (2 samples)
3 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.6%
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 87.6 | 87.6% |
| 14 May 2026, 14:35 | 85.1 | 85.1% |
| 13 Apr 2026, 13:38 | 86 | 86% |
| 9 Apr 2026, 14:01 | 87.1 | 87.1% |
| 23 Mar 2026, 13:10 | 90.4 | 90.4% |
| 5 Mar 2026, 13:53 | 89 | 89% |
| 27 Feb 2026, 12:39 | 89.3 | 89.3% |
| 5 Feb 2026, 14:51 | 88.2 | 88.2% |
| 27 Jan 2026, 14:40 | 89.5 | 89.5% |
| 27 Jan 2026, 14:33 | 89.2 | 89.2% |
| 15 Jan 2026, 12:56 | 89.4 | 89.4% |
| 15 Dec 2025, 10:55 | 87.9 | 87.9% |
| 4 Nov 2025, 12:15 | 81.3 | 81.3% |
| 6 Oct 2025, 11:01 | 81.9 | 81.9% |
| 15 Aug 2025, 11:46 | 88.4 | 88.4% |
| 28 Jul 2025, 11:37 | 89.8 | 89.8% |
| 19 Jun 2025, 11:23 | 87 | 87% |
| 24 Apr 2025, 11:43 | 88.1 | 88.1% |
| 10 Feb 2025, 13:15 | 93.2 | 93.2% |
| 24 Jan 2025, 13:49 | 90.3 | 90.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.89 mg/l
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 8.89 | 8.89 mg/l |
| 14 May 2026, 14:35 | 9.34 | 9.34 mg/l |
| 13 Apr 2026, 13:38 | 9.35 | 9.35 mg/l |
| 9 Apr 2026, 14:01 | 9.01 | 9.01 mg/l |
| 23 Mar 2026, 13:10 | 9.9 | 9.9 mg/l |
| 5 Mar 2026, 13:53 | 9.61 | 9.61 mg/l |
| 27 Feb 2026, 12:39 | 9.62 | 9.62 mg/l |
| 5 Feb 2026, 14:51 | 10.1 | 10.1 mg/l |
| 27 Jan 2026, 14:40 | 10.5 | 10.5 mg/l |
| 27 Jan 2026, 14:33 | 10.4 | 10.4 mg/l |
| 15 Jan 2026, 12:56 | 10.4 | 10.4 mg/l |
| 15 Dec 2025, 10:55 | 9.65 | 9.65 mg/l |
| 4 Nov 2025, 12:15 | 8.36 | 8.36 mg/l |
| 6 Oct 2025, 11:01 | 8.49 | 8.49 mg/l |
| 15 Aug 2025, 11:46 | 8.26 | 8.26 mg/l |
| 28 Jul 2025, 11:37 | 8.77 | 8.77 mg/l |
| 19 Jun 2025, 11:23 | 8.32 | 8.32 mg/l |
| 24 Apr 2025, 11:43 | 9.49 | 9.49 mg/l |
| 10 Feb 2025, 13:15 | 11.6 | 11.6 mg/l |
| 24 Jan 2025, 13:49 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
14.6 °C
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 14.6 | 14.6 °C |
| 14 May 2026, 14:35 | 11.1 | 11.1 °C |
| 13 Apr 2026, 13:38 | 11.5 | 11.5 °C |
| 9 Apr 2026, 14:01 | 13.7 | 13.7 °C |
| 23 Mar 2026, 13:10 | 11.2 | 11.2 °C |
| 5 Mar 2026, 13:53 | 11.8 | 11.8 °C |
| 27 Feb 2026, 12:39 | 11.9 | 11.9 °C |
| 5 Feb 2026, 14:51 | 9.2 | 9.2 °C |
| 27 Jan 2026, 14:40 | 8.5 | 8.5 °C |
| 27 Jan 2026, 14:33 | 8.5 | 8.5 °C |
| 15 Jan 2026, 12:56 | 8.6 | 8.6 °C |
| 15 Dec 2025, 10:55 | 11.1 | 11.1 °C |
| 4 Nov 2025, 12:15 | 14 | 14 °C |
| 6 Oct 2025, 11:01 | 13.6 | 13.6 °C |
| 15 Aug 2025, 11:46 | 18.5 | 18.5 °C |
| 28 Jul 2025, 11:37 | 16.4 | 16.4 °C |
| 19 Jun 2025, 11:23 | 17.4 | 17.4 °C |
| 24 Apr 2025, 11:43 | 11.9 | 11.9 °C |
| 10 Feb 2025, 13:15 | 6 | 6 °C |
| 24 Jan 2025, 13:49 | 7.6 | 7.6 °C |
pH
code 0061
8.06
Sampled 2 Jul 2026, 3 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 14:17 | 8.06 | 8.06 |
| 21 May 2026, 10:52 | 8.02 | 8.02 |
| 14 May 2026, 14:35 | 7.96 | 7.96 |
| 13 Apr 2026, 13:38 | 7.98 | 7.98 |
| 9 Apr 2026, 14:01 | 8.02 | 8.02 |
| 23 Mar 2026, 13:10 | 7.97 | 7.97 |
| 5 Mar 2026, 13:53 | 7.83 | 7.83 |
| 27 Feb 2026, 12:39 | 7.72 | 7.72 |
| 5 Feb 2026, 14:51 | 7.79 | 7.79 |
| 27 Jan 2026, 14:40 | 7.59 | 7.59 |
| 27 Jan 2026, 14:33 | 7.59 | 7.59 |
| 15 Jan 2026, 12:56 | 7.83 | 7.83 |
| 15 Dec 2025, 10:55 | 8 | 8 |
| 4 Nov 2025, 12:15 | 7.87 | 7.87 |
| 6 Oct 2025, 11:01 | 7.86 | 7.86 |
| 15 Aug 2025, 11:46 | 8.15 | 8.15 |
| 28 Jul 2025, 11:37 | 8.1 | 8.1 |
| 19 Jun 2025, 11:23 | 8.01 | 8.01 |
| 24 Apr 2025, 11:43 | 8.04 | 8.04 |
| 10 Feb 2025, 13:15 | 7.62 | 7.62 |
| 24 Jan 2025, 13:49 | 7.5 | 7.5 |
| 24 Jan 2025, 13:48 | 7.5 | 7.5 |
| 2 Oct 2024, 13:43 | 7.87 | 7.87 |
| 12 Jul 2024, 13:58 | 7.97 | 7.97 |
| 24 Apr 2024, 11:32 | 8.14 | 8.14 |
| 11 Jan 2024, 11:53 | 7.99 | 7.99 |
| 25 Oct 2023, 15:12 | 7.53 | 7.53 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.071 mg/l
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 0.071 | 0.071 mg/l |
| 14 May 2026, 14:35 | 0.32 | 0.32 mg/l |
| 13 Apr 2026, 13:38 | 0.079 | 0.079 mg/l |
| 9 Apr 2026, 14:01 | 0.079 | 0.079 mg/l |
| 23 Mar 2026, 13:10 | 0.09 | 0.09 mg/l |
| 5 Mar 2026, 13:53 | 0.093 | 0.093 mg/l |
| 27 Feb 2026, 12:39 | 0.084 | 0.084 mg/l |
| 5 Feb 2026, 14:51 | 1 | 1 mg/l |
| 27 Jan 2026, 14:40 | 0.13 | 0.13 mg/l |
| 27 Jan 2026, 14:33 | 0.14 | 0.14 mg/l |
| 15 Jan 2026, 12:56 | 0.07 | 0.07 mg/l |
| 15 Dec 2025, 10:55 | 0.046 | 0.046 mg/l |
| 4 Nov 2025, 12:15 | 0.037 | 0.037 mg/l |
| 6 Oct 2025, 11:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Aug 2025, 11:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jul 2025, 11:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jun 2025, 11:23 | 0.049 | 0.049 mg/l |
| 24 Apr 2025, 11:43 | 0.07 | 0.07 mg/l |
| 10 Feb 2025, 13:15 | 0.24 | 0.24 mg/l |
| 24 Jan 2025, 13:49 | 0.78 | 0.78 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
16.9 mg/l
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 16.9 | 16.9 mg/l |
| 14 May 2026, 14:35 | 15.7 | 15.7 mg/l |
| 13 Apr 2026, 13:38 | 9.28 | 9.28 mg/l |
| 9 Apr 2026, 14:01 | 18.9 | 18.9 mg/l |
| 23 Mar 2026, 13:10 | 16.9 | 16.9 mg/l |
| 5 Mar 2026, 13:53 | 15.9 | 15.9 mg/l |
| 27 Feb 2026, 12:39 | 11.9 | 11.9 mg/l |
| 5 Feb 2026, 14:51 | 9.36 | 9.36 mg/l |
| 27 Jan 2026, 14:40 | 3.87 | 3.87 mg/l |
| 27 Jan 2026, 14:33 | 3.77 | 3.77 mg/l |
| 15 Jan 2026, 12:56 | 7.32 | 7.32 mg/l |
| 15 Dec 2025, 10:55 | 11.9 | 11.9 mg/l |
| 4 Nov 2025, 12:15 | 10.9 | 10.9 mg/l |
| 6 Oct 2025, 11:01 | 12 | 12 mg/l |
| 15 Aug 2025, 11:46 | 13 | 13 mg/l |
| 28 Jul 2025, 11:37 | 11 | 11 mg/l |
| 19 Jun 2025, 11:23 | 12.9 | 12.9 mg/l |
| 24 Apr 2025, 11:43 | 13.8 | 13.8 mg/l |
| 10 Feb 2025, 13:15 | 3.55 | 3.55 mg/l |
| 24 Jan 2025, 13:49 | 5.25 | 5.25 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
1.2 mg/l
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 1.2 | 1.2 mg/l |
| 14 May 2026, 14:35 | 1.9 | 1.9 mg/l |
| 13 Apr 2026, 13:38 | 0.48 | 0.48 mg/l |
| 9 Apr 2026, 14:01 | 0.68 | 0.68 mg/l |
| 23 Mar 2026, 13:10 | 0.43 | 0.43 mg/l |
| 5 Mar 2026, 13:53 | 0.36 | 0.36 mg/l |
| 27 Feb 2026, 12:39 | 0.48 | 0.48 mg/l |
| 5 Feb 2026, 14:51 | 0.57 | 0.57 mg/l |
| 27 Jan 2026, 14:40 | 0.37 | 0.37 mg/l |
| 27 Jan 2026, 14:33 | 0.39 | 0.39 mg/l |
| 15 Jan 2026, 12:56 | 0.23 | 0.23 mg/l |
| 15 Dec 2025, 10:55 | 0.28 | 0.28 mg/l |
| 4 Nov 2025, 12:15 | 0.31 | 0.31 mg/l |
| 6 Oct 2025, 11:01 | 0.25 | 0.25 mg/l |
| 15 Aug 2025, 11:46 | 0.4 | 0.4 mg/l |
| 28 Jul 2025, 11:37 | 0.32 | 0.32 mg/l |
| 19 Jun 2025, 11:23 | 0.49 | 0.49 mg/l |
| 24 Apr 2025, 11:43 | 0.34 | 0.34 mg/l |
| 10 Feb 2025, 13:15 | 0.28 | 0.28 mg/l |
| 24 Jan 2025, 13:49 | 0.38 | 0.38 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1228 µS/cm
Sampled 21 May 2026, 4 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 10:52 | 1228 | 1228 µS/cm |
| 14 May 2026, 14:35 | 1127 | 1127 µS/cm |
| 13 Apr 2026, 13:38 | 902 | 902 µS/cm |
| 9 Apr 2026, 14:01 | 1168 | 1168 µS/cm |
| 23 Mar 2026, 13:10 | 1172 | 1172 µS/cm |
| 5 Mar 2026, 13:53 | 1074 | 1074 µS/cm |
| 27 Feb 2026, 12:39 | 871 | 871 µS/cm |
| 5 Feb 2026, 14:51 | 693 | 693 µS/cm |
| 27 Jan 2026, 14:40 | 363 | 363 µS/cm |
| 27 Jan 2026, 14:33 | 360 | 360 µS/cm |
| 15 Jan 2026, 12:56 | 810 | 810 µS/cm |
| 15 Dec 2025, 10:55 | 1094 | 1094 µS/cm |
| 4 Nov 2025, 12:15 | 1199 | 1199 µS/cm |
| 6 Oct 2025, 11:01 | 1149 | 1149 µS/cm |
| 15 Aug 2025, 11:46 | 1233 | 1233 µS/cm |
| 28 Jul 2025, 11:37 | 1226 | 1226 µS/cm |
| 19 Jun 2025, 11:23 | 1249 | 1249 µS/cm |
| 24 Apr 2025, 11:43 | 1084 | 1084 µS/cm |
| 10 Feb 2025, 13:15 | 615 | 615 µS/cm |
| 24 Jan 2025, 13:49 | 594 | 594 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 | 20 | Jan 2025 – May 2026 | 87.6% 21 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 20 | Jan 2025 – May 2026 | 8.89 mg/l 21 May 2026 |
| Temperature of Water 0076 | River water | 20 | Jan 2025 – May 2026 | 14.6 °C 21 May 2026 |
| pH 0061 | River water | 27 | Oct 2023 – Jul 2026 | 8.06 2 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Jan 2025 – May 2026 | 0.071 mg/l 21 May 2026 |
| Nitrate as N 0117 | River water | 20 | Jan 2025 – May 2026 | 16.9 mg/l 21 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 20 | Jan 2025 – May 2026 | 1.2 mg/l 21 May 2026 |
| Conductivity at 25 C 0077 | River water | 20 | Jan 2025 – May 2026 | 1228 µS/cm 21 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Jan 2025 – May 2026 | 270 mg/l 21 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Jan 2025 – May 2026 | 0.00181 mg/l 21 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 19 | Jan 2025 – May 2026 | 2.6 mg/l 21 May 2026 |
| Calcium, Dissolved 0239 | River water | 12 | Oct 2023 – Jul 2026 | 110 mg/l 2 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 11 | Oct 2023 – Jul 2026 | 7.6 mg/l 2 Jul 2026 |
| Iron, Dissolved 6460 | River water | 12 | Oct 2023 – Jul 2026 | 150 µg/l 2 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 12 | Oct 2023 – Jul 2026 | 6.6 mg/l 2 Jul 2026 |
| Nitrite as N 0118 | River water | 20 | Jan 2025 – May 2026 | 0.087 mg/l 21 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 20 | Jan 2025 – May 2026 | 17 mg/l 21 May 2026 |
| No flow /No sample 7668 | River water | 3 | Aug 2025 – Sep 2025 | No flow/discharge at sampling point 12 Sep 2025 |
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.