Upstream of Ditchling at Stoneywish
EA name: U/S DITCHLING AT STONEYWISH (also listed as “UPSTREAM DITCHLING AT STONEYWISH CP”)
Environment Agency sampling point SO-F0017479 · 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
- 20 May 2026, 10:424 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
- 30 since 17 Jun 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 533399, 115403As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedNearest line is 124 m away and its name does not agree. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (30 samples)
5 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
80.6%
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 80.6 | 80.6% |
| 13 Apr 2026, 12:15 | 89.8 | 89.8% |
| 1 Apr 2026, 15:28 | 77.7 | 77.7% |
| 18 Mar 2026, 11:15 | 83.1 | 83.1% |
| 4 Mar 2026, 13:56 | 103.9 | 103.9% |
| 23 Feb 2026, 09:38 | 94.8 | 94.8% |
| 5 Feb 2026, 13:45 | 98.7 | 98.7% |
| 15 Jan 2026, 11:48 | 98.6 | 98.6% |
| 17 Dec 2025, 14:07 | 91.5 | 91.5% |
| 4 Dec 2025, 10:04 | 92.4 | 92.4% |
| 17 Nov 2025, 13:10 | 82.6 | 82.6% |
| 4 Nov 2025, 13:20 | 86.1 | 86.1% |
| 5 Sep 2025, 11:45 | 67.5 | 67.5% |
| 5 Jun 2025, 17:10 | 60.6 | 60.6% |
| 7 May 2025, 14:03 | 98.5 | 98.5% |
| 2 Apr 2025, 14:32 | 94.3 | 94.3% |
| 5 Mar 2025, 14:27 | 101.1 | 101.1% |
| 11 Feb 2025, 12:34 | 96.7 | 96.7% |
| 24 Jan 2025, 11:21 | 98 | 98% |
| 12 Dec 2024, 11:28 | 93.6 | 93.6% |
| 27 Nov 2024, 15:00 | 95 | 95% |
| 22 Nov 2024, 15:13 | 88.4 | 88.4% |
| 20 Sep 2024, 12:15 | 68.1 | 68.1% |
| 15 Jul 2024, 14:36 | 74.6 | 74.6% |
| 17 Jun 2024, 14:21 | 82.2 | 82.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.47 mg/l
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 8.47 | 8.47 mg/l |
| 13 Apr 2026, 12:15 | 9.97 | 9.97 mg/l |
| 1 Apr 2026, 15:28 | 8.59 | 8.59 mg/l |
| 18 Mar 2026, 11:15 | 9.34 | 9.34 mg/l |
| 4 Mar 2026, 13:56 | 11.7 | 11.7 mg/l |
| 23 Feb 2026, 09:38 | 11.1 | 11.1 mg/l |
| 5 Feb 2026, 13:45 | 11.6 | 11.6 mg/l |
| 15 Jan 2026, 11:48 | 11.8 | 11.8 mg/l |
| 17 Dec 2025, 14:07 | 10.8 | 10.8 mg/l |
| 4 Dec 2025, 10:04 | 10.7 | 10.7 mg/l |
| 17 Nov 2025, 13:10 | 9.49 | 9.49 mg/l |
| 4 Nov 2025, 13:20 | 9.01 | 9.01 mg/l |
| 5 Sep 2025, 11:45 | 6.69 | 6.69 mg/l |
| 5 Jun 2025, 17:10 | 6.07 | 6.07 mg/l |
| 7 May 2025, 14:03 | 10.5 | 10.5 mg/l |
| 2 Apr 2025, 14:32 | 10.2 | 10.2 mg/l |
| 5 Mar 2025, 14:27 | 12.3 | 12.3 mg/l |
| 11 Feb 2025, 12:34 | 12.1 | 12.1 mg/l |
| 24 Jan 2025, 11:21 | 11.6 | 11.6 mg/l |
| 12 Dec 2024, 11:28 | 11 | 11 mg/l |
| 27 Nov 2024, 15:00 | 10.9 | 10.9 mg/l |
| 22 Nov 2024, 15:13 | 11.2 | 11.2 mg/l |
| 20 Sep 2024, 12:15 | 6.55 | 6.55 mg/l |
| 15 Jul 2024, 14:36 | 7.25 | 7.25 mg/l |
| 17 Jun 2024, 14:21 | 7.89 | 7.89 mg/l |
Water temperature
code 0076 · °C
13 °C
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 13 | 13 °C |
| 13 Apr 2026, 12:15 | 10.6 | 10.6 °C |
| 1 Apr 2026, 15:28 | 10.8 | 10.8 °C |
| 18 Mar 2026, 11:15 | 10.1 | 10.1 °C |
| 4 Mar 2026, 13:56 | 10.1 | 10.1 °C |
| 23 Feb 2026, 09:38 | 8.3 | 8.3 °C |
| 5 Feb 2026, 13:45 | 8.1 | 8.1 °C |
| 15 Jan 2026, 11:48 | 7.5 | 7.5 °C |
| 17 Dec 2025, 14:07 | 8 | 8 °C |
| 4 Dec 2025, 10:04 | 9 | 9 °C |
| 17 Nov 2025, 13:10 | 9.2 | 9.2 °C |
| 4 Nov 2025, 13:20 | 13.2 | 13.2 °C |
| 5 Sep 2025, 11:45 | 15.7 | 15.7 °C |
| 5 Jun 2025, 17:10 | 15.2 | 15.2 °C |
| 7 May 2025, 14:03 | 12.4 | 12.4 °C |
| 2 Apr 2025, 14:32 | 11.8 | 11.8 °C |
| 5 Mar 2025, 14:27 | 6.9 | 6.9 °C |
| 11 Feb 2025, 12:34 | 5.6 | 5.6 °C |
| 24 Jan 2025, 11:21 | 7.9 | 7.9 °C |
| 12 Dec 2024, 11:28 | 8.1 | 8.1 °C |
| 27 Nov 2024, 15:00 | 9.3 | 9.3 °C |
| 22 Nov 2024, 15:13 | 5.1 | 5.1 °C |
| 20 Sep 2024, 12:15 | 17.1 | 17.1 °C |
| 15 Jul 2024, 14:36 | 16.6 | 16.6 °C |
| 17 Jun 2024, 14:21 | 17.2 | 17.2 °C |
pH
code 0061
7.9
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 7.9 | 7.9 |
| 13 Apr 2026, 12:15 | 8.06 | 8.06 |
| 1 Apr 2026, 15:28 | 8.05 | 8.05 |
| 18 Mar 2026, 11:15 | 8.12 | 8.12 |
| 4 Mar 2026, 13:56 | 8.12 | 8.12 |
| 23 Feb 2026, 09:38 | 8.1 | 8.1 |
| 5 Feb 2026, 13:45 | 7.8 | 7.8 |
| 15 Jan 2026, 11:48 | 7.72 | 7.72 |
| 17 Dec 2025, 14:07 | 8.19 | 8.19 |
| 4 Dec 2025, 10:04 | 7.93 | 7.93 |
| 17 Nov 2025, 13:10 | 7.83 | 7.83 |
| 4 Nov 2025, 13:20 | 7.76 | 7.76 |
| 5 Sep 2025, 11:45 | 7.54 | 7.54 |
| 5 Jun 2025, 17:10 | 7.51 | 7.51 |
| 7 May 2025, 14:03 | 8.11 | 8.11 |
| 2 Apr 2025, 14:32 | 8.07 | 8.07 |
| 5 Mar 2025, 14:27 | 8.12 | 8.12 |
| 11 Feb 2025, 12:34 | 7.93 | 7.93 |
| 24 Jan 2025, 11:21 | 7.66 | 7.66 |
| 12 Dec 2024, 11:28 | 7.96 | 7.96 |
| 27 Nov 2024, 15:00 | 7.64 | 7.64 |
| 22 Nov 2024, 15:13 | 7.86 | 7.86 |
| 20 Sep 2024, 12:15 | 7.76 | 7.76 |
| 15 Jul 2024, 14:36 | 7.85 | 7.85 |
| 17 Jun 2024, 14:21 | 7.83 | 7.83 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.11 mg/l
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 0.11 | 0.11 mg/l |
| 13 Apr 2026, 12:15 | 0.046 | 0.046 mg/l |
| 1 Apr 2026, 15:28 | 0.08 | 0.08 mg/l |
| 18 Mar 2026, 11:15 | 0.043 | 0.043 mg/l |
| 4 Mar 2026, 13:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Feb 2026, 09:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2026, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jan 2026, 11:48 | 0.035 | 0.035 mg/l |
| 17 Dec 2025, 14:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2025, 10:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Nov 2025, 13:10 | 0.082 | 0.082 mg/l |
| 4 Nov 2025, 13:20 | 0.057 | 0.057 mg/l |
| 5 Sep 2025, 11:45 | 0.19 | 0.19 mg/l |
| 5 Jun 2025, 17:10 | 0.078 | 0.078 mg/l |
| 7 May 2025, 14:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 14:32 | 0.058 | 0.058 mg/l |
| 5 Mar 2025, 14:27 | 0.05 | 0.05 mg/l |
| 11 Feb 2025, 12:34 | 0.042 | 0.042 mg/l |
| 24 Jan 2025, 11:21 | 0.041 | 0.041 mg/l |
| 12 Dec 2024, 11:28 | 0.044 | 0.044 mg/l |
| 27 Nov 2024, 15:00 | 0.031 | 0.031 mg/l |
| 22 Nov 2024, 15:13 | 0.037 | 0.037 mg/l |
| 20 Sep 2024, 12:15 | 0.12 | 0.12 mg/l |
| 15 Jul 2024, 14:36 | 0.16 | 0.16 mg/l |
| 17 Jun 2024, 14:21 | 0.22 | 0.22 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.851 mg/l
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 0.851 | 0.851 mg/l |
| 13 Apr 2026, 12:15 | 0.284 | 0.284 mg/l |
| 1 Apr 2026, 15:28 | 0.315 | 0.315 mg/l |
| 18 Mar 2026, 11:15 | 0.396 | 0.396 mg/l |
| 4 Mar 2026, 13:56 | 0.396 | 0.396 mg/l |
| 23 Feb 2026, 09:38 | 0.486 | 0.486 mg/l |
| 5 Feb 2026, 13:45 | 0.566 | 0.566 mg/l |
| 15 Jan 2026, 11:48 | 0.656 | 0.656 mg/l |
| 17 Dec 2025, 14:07 | 0.536 | 0.536 mg/l |
| 4 Dec 2025, 10:04 | 0.886 | 0.886 mg/l |
| 17 Nov 2025, 13:10 | 0.56 | 0.56 mg/l |
| 4 Nov 2025, 13:20 | 0.762 | 0.762 mg/l |
| 5 Sep 2025, 11:45 | 0.586 | 0.586 mg/l |
| 5 Jun 2025, 17:10 | 0.191 | 0.191 mg/l |
| 7 May 2025, 14:03 | 0.215 | 0.215 mg/l |
| 2 Apr 2025, 14:32 | 0.321 | 0.321 mg/l |
| 5 Mar 2025, 14:27 | 0.566 | 0.566 mg/l |
| 11 Feb 2025, 12:34 | 0.716 | 0.716 mg/l |
| 24 Jan 2025, 11:21 | 0.994 | 0.994 mg/l |
| 12 Dec 2024, 11:28 | 0.556 | 0.556 mg/l |
| 27 Nov 2024, 15:00 | 1.4 | 1.4 mg/l |
| 22 Nov 2024, 15:13 | 0.484 | 0.484 mg/l |
| 20 Sep 2024, 12:15 | 0.308 | 0.308 mg/l |
| 15 Jul 2024, 14:36 | 0.262 | 0.262 mg/l |
| 17 Jun 2024, 14:21 | 0.352 | 0.352 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.041 mg/l
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 0.041 | 0.041 mg/l |
| 13 Apr 2026, 12:15 | 0.023 | 0.023 mg/l |
| 1 Apr 2026, 15:28 | 0.023 | 0.023 mg/l |
| 18 Mar 2026, 11:15 | 0.026 | 0.026 mg/l |
| 4 Mar 2026, 13:56 | 0.028 | 0.028 mg/l |
| 23 Feb 2026, 09:38 | 0.035 | 0.035 mg/l |
| 5 Feb 2026, 13:45 | 0.075 | 0.075 mg/l |
| 15 Jan 2026, 11:48 | 0.085 | 0.085 mg/l |
| 17 Dec 2025, 14:07 | 0.03 | 0.03 mg/l |
| 4 Dec 2025, 10:04 | 0.052 | 0.052 mg/l |
| 17 Nov 2025, 13:10 | 0.052 | 0.052 mg/l |
| 4 Nov 2025, 13:20 | 0.052 | 0.052 mg/l |
| 5 Sep 2025, 11:45 | 0.052 | 0.052 mg/l |
| 5 Jun 2025, 17:10 | 0.077 | 0.077 mg/l |
| 7 May 2025, 14:03 | 0.014 | 0.014 mg/l |
| 2 Apr 2025, 14:32 | 0.02 | 0.02 mg/l |
| 5 Mar 2025, 14:27 | 0.014 | 0.014 mg/l |
| 11 Feb 2025, 12:34 | 0.031 | 0.031 mg/l |
| 24 Jan 2025, 11:21 | 0.1 | 0.1 mg/l |
| 12 Dec 2024, 11:28 | 0.03 | 0.03 mg/l |
| 27 Nov 2024, 15:00 | 0.15 | 0.15 mg/l |
| 22 Nov 2024, 15:13 | 0.037 | 0.037 mg/l |
| 20 Sep 2024, 12:15 | 0.048 | 0.048 mg/l |
| 15 Jul 2024, 14:36 | 0.052 | 0.052 mg/l |
| 17 Jun 2024, 14:21 | 0.057 | 0.057 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
526 µS/cm
Sampled 20 May 2026, 4 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 10:42 | 526 | 526 µS/cm |
| 13 Apr 2026, 12:15 | 614 | 614 µS/cm |
| 1 Apr 2026, 15:28 | 606 | 606 µS/cm |
| 18 Mar 2026, 11:15 | 586 | 586 µS/cm |
| 4 Mar 2026, 13:56 | 562 | 562 µS/cm |
| 23 Feb 2026, 09:38 | 517 | 517 µS/cm |
| 5 Feb 2026, 13:45 | 328 | 328 µS/cm |
| 15 Jan 2026, 11:48 | 288 | 288 µS/cm |
| 17 Dec 2025, 14:07 | 612 | 612 µS/cm |
| 4 Dec 2025, 10:04 | 458 | 458 µS/cm |
| 17 Nov 2025, 13:10 | 608 | 608 µS/cm |
| 4 Nov 2025, 13:20 | 522 | 522 µS/cm |
| 5 Sep 2025, 11:45 | 485 | 485 µS/cm |
| 5 Jun 2025, 17:10 | 572 | 572 µS/cm |
| 7 May 2025, 14:03 | 586 | 586 µS/cm |
| 2 Apr 2025, 14:32 | 599 | 599 µS/cm |
| 5 Mar 2025, 14:27 | 628 | 628 µS/cm |
| 11 Feb 2025, 12:34 | 571 | 571 µS/cm |
| 24 Jan 2025, 11:21 | 369 | 369 µS/cm |
| 12 Dec 2024, 11:28 | 570 | 570 µS/cm |
| 27 Nov 2024, 15:00 | 349 | 349 µS/cm |
| 22 Nov 2024, 15:13 | 608 | 608 µS/cm |
| 20 Sep 2024, 12:15 | 587 | 587 µS/cm |
| 15 Jul 2024, 14:36 | 570 | 570 µS/cm |
| 17 Jun 2024, 14:21 | 583 | 583 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 | 25 | Jun 2024 – May 2026 | 80.6% 20 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 25 | Jun 2024 – May 2026 | 8.47 mg/l 20 May 2026 |
| Temperature of Water 0076 | River water | 25 | Jun 2024 – May 2026 | 13 °C 20 May 2026 |
| pH 0061 | River water | 25 | Jun 2024 – May 2026 | 7.9 20 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 25 | Jun 2024 – May 2026 | 0.11 mg/l 20 May 2026 |
| Nitrate as N 0117 | River water | 25 | Jun 2024 – May 2026 | 0.851 mg/l 20 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 25 | Jun 2024 – May 2026 | 0.041 mg/l 20 May 2026 |
| Conductivity at 25 C 0077 | River water | 25 | Jun 2024 – May 2026 | 526 µS/cm 20 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 25 | Jun 2024 – May 2026 | 230 mg/l 20 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 25 | Jun 2024 – May 2026 | 0.00199 mg/l 20 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 24 | Jun 2024 – May 2026 | 3.3 mg/l 20 May 2026 |
| Nitrite as N 0118 | River water | 25 | Jun 2024 – May 2026 | 0.029 mg/l 20 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Jun 2024 – May 2026 | 0.88 mg/l 20 May 2026 |
| No flow /No sample 7668 | River water | 5 | Aug 2024 – May 2026 | No flow/discharge at sampling point 12 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.