Combe Haven Pmill Stream Plough I
EA name: COMBE HAVEN PMILL STR PLOUGH I (also listed as “COMBE HAVEN TRIBUTARY POWDERMILL STREAM AT PLOUGH INN”)
Environment Agency sampling point SO-F0001957 · 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
- 7 Sep 2026, 12:2124 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 16 since 21 Jun 2024 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 575970, 111700As published, to the nearest 10 m. Open in a map
- River, by its own name
- tributary of Powdermill Stream
- River, by the map
- Powdermill StreamOn an unmapped tributary: placed where it joins the river its name gives, 10 m from the line.
- Next gauge downstream
- Sheepwash Bridge On the Cuckmere & Pevensey Levels · 4.2 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (16 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
89.2%
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 89.2 | 89.2% |
| 17 Aug 2026, 10:11 | 92.3 | 92.3% |
| 3 Jul 2026, 11:57 | 91.1 | 91.1% |
| 8 Jun 2026, 12:59 | 88.6 | 88.6% |
| 1 May 2026, 09:47 | 93.1 | 93.1% |
| 14 Apr 2026, 10:46 | 103.4 | 103.4% |
| 12 Mar 2025, 12:08 | 99.9 | 99.9% |
| 25 Feb 2025, 14:33 | 97.3 | 97.3% |
| 29 Jan 2025, 12:25 | 97.2 | 97.2% |
| 16 Dec 2024, 10:14 | 96.4 | 96.4% |
| 13 Nov 2024, 08:46 | 92.2 | 92.2% |
| 15 Oct 2024, 14:51 | 94.6 | 94.6% |
| 27 Sep 2024, 13:26 | 91.4 | 91.4% |
| 13 Aug 2024, 10:27 | 90.2 | 90.2% |
| 31 Jul 2024, 11:20 | 92.8 | 92.8% |
| 21 Jun 2024, 11:00 | 93.8 | 93.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.47 mg/l
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 8.47 | 8.47 mg/l |
| 17 Aug 2026, 10:11 | 8.57 | 8.57 mg/l |
| 3 Jul 2026, 11:57 | 8.6 | 8.6 mg/l |
| 8 Jun 2026, 12:59 | 8.95 | 8.95 mg/l |
| 1 May 2026, 09:47 | 10 | 10 mg/l |
| 14 Apr 2026, 10:46 | 11.4 | 11.4 mg/l |
| 12 Mar 2025, 12:08 | 11.9 | 11.9 mg/l |
| 25 Feb 2025, 14:33 | 11.3 | 11.3 mg/l |
| 29 Jan 2025, 12:25 | 11.8 | 11.8 mg/l |
| 16 Dec 2024, 10:14 | 11.2 | 11.2 mg/l |
| 13 Nov 2024, 08:46 | 10.6 | 10.6 mg/l |
| 15 Oct 2024, 14:51 | 9.94 | 9.94 mg/l |
| 27 Sep 2024, 13:26 | 9.42 | 9.42 mg/l |
| 13 Aug 2024, 10:27 | 8.48 | 8.48 mg/l |
| 31 Jul 2024, 11:20 | 8.54 | 8.54 mg/l |
| 21 Jun 2024, 11:00 | 9.5 | 9.5 mg/l |
Water temperature
code 0076 · °C
17.7 °C
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 17.7 | 17.7 °C |
| 17 Aug 2026, 10:11 | 18.8 | 18.8 °C |
| 3 Jul 2026, 11:57 | 18 | 18 °C |
| 8 Jun 2026, 12:59 | 14.8 | 14.8 °C |
| 1 May 2026, 09:47 | 11.9 | 11.9 °C |
| 14 Apr 2026, 10:46 | 10.8 | 10.8 °C |
| 12 Mar 2025, 12:08 | 7.6 | 7.6 °C |
| 25 Feb 2025, 14:33 | 8.9 | 8.9 °C |
| 29 Jan 2025, 12:25 | 6.9 | 6.9 °C |
| 16 Dec 2024, 10:14 | 8.9 | 8.9 °C |
| 13 Nov 2024, 08:46 | 9.1 | 9.1 °C |
| 15 Oct 2024, 14:51 | 13 | 13 °C |
| 27 Sep 2024, 13:26 | 13.9 | 13.9 °C |
| 13 Aug 2024, 10:27 | 18.2 | 18.2 °C |
| 31 Jul 2024, 11:20 | 19.3 | 19.3 °C |
| 21 Jun 2024, 11:00 | 14.7 | 14.7 °C |
pH
code 0061
7.85
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 7.85 | 7.85 |
| 17 Aug 2026, 10:11 | 7.8 | 7.8 |
| 3 Jul 2026, 11:57 | 8.25 | 8.25 |
| 8 Jun 2026, 12:59 | 7.93 | 7.93 |
| 1 May 2026, 09:47 | 8.22 | 8.22 |
| 14 Apr 2026, 10:46 | 7.83 | 7.83 |
| 12 Mar 2025, 12:08 | 7.81 | 7.81 |
| 25 Feb 2025, 14:33 | 7.54 | 7.54 |
| 29 Jan 2025, 12:25 | 7.53 | 7.53 |
| 16 Dec 2024, 10:14 | 7.49 | 7.49 |
| 13 Nov 2024, 08:46 | 7.63 | 7.63 |
| 15 Oct 2024, 14:51 | 7.62 | 7.62 |
| 27 Sep 2024, 13:26 | 7.59 | 7.59 |
| 13 Aug 2024, 10:27 | 7.92 | 7.92 |
| 31 Jul 2024, 11:20 | 7.83 | 7.83 |
| 21 Jun 2024, 11:00 | 7.8 | 7.8 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Aug 2026, 10:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2026, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jun 2026, 12:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 May 2026, 09:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Apr 2026, 10:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2025, 12:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2025, 14:33 | 0.036 | 0.036 mg/l |
| 29 Jan 2025, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Dec 2024, 10:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Nov 2024, 08:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Oct 2024, 14:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Sep 2024, 13:26 | 0.085 | 0.085 mg/l |
| 13 Aug 2024, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Jul 2024, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jun 2024, 11:00 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.606 mg/l
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 0.606 | 0.606 mg/l |
| 17 Aug 2026, 10:11 | 0.516 | 0.516 mg/l |
| 3 Jul 2026, 11:57 | 1.2 | 1.2 mg/l |
| 8 Jun 2026, 12:59 | 1.39 | 1.39 mg/l |
| 1 May 2026, 09:47 | 1.6 | 1.6 mg/l |
| 14 Apr 2026, 10:46 | 1.49 | 1.49 mg/l |
| 12 Mar 2025, 12:08 | 2.39 | 2.39 mg/l |
| 25 Feb 2025, 14:33 | 2.49 | 2.49 mg/l |
| 29 Jan 2025, 12:25 | 3.09 | 3.09 mg/l |
| 16 Dec 2024, 10:14 | 2.89 | 2.89 mg/l |
| 13 Nov 2024, 08:46 | 1.99 | 1.99 mg/l |
| 15 Oct 2024, 14:51 | 3.68 | 3.68 mg/l |
| 27 Sep 2024, 13:26 | 8.67 | 8.67 mg/l |
| 13 Aug 2024, 10:27 | 1.4 | 1.4 mg/l |
| 31 Jul 2024, 11:20 | 1.59 | 1.59 mg/l |
| 21 Jun 2024, 11:00 | 1.99 | 1.99 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.044 mg/l
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 0.044 | 0.044 mg/l |
| 17 Aug 2026, 10:11 | 0.068 | 0.068 mg/l |
| 3 Jul 2026, 11:57 | 0.037 | 0.037 mg/l |
| 8 Jun 2026, 12:59 | 0.061 | 0.061 mg/l |
| 1 May 2026, 09:47 | 0.036 | 0.036 mg/l |
| 14 Apr 2026, 10:46 | 0.019 | 0.019 mg/l |
| 12 Mar 2025, 12:08 | 0.016 | 0.016 mg/l |
| 25 Feb 2025, 14:33 | 0.034 | 0.034 mg/l |
| 29 Jan 2025, 12:25 | 0.037 | 0.037 mg/l |
| 16 Dec 2024, 10:14 | 0.023 | 0.023 mg/l |
| 13 Nov 2024, 08:46 | 0.03 | 0.03 mg/l |
| 15 Oct 2024, 14:51 | 0.043 | 0.043 mg/l |
| 27 Sep 2024, 13:26 | 0.1 | 0.1 mg/l |
| 13 Aug 2024, 10:27 | 0.054 | 0.054 mg/l |
| 31 Jul 2024, 11:20 | 0.048 | 0.048 mg/l |
| 21 Jun 2024, 11:00 | 0.05 | 0.05 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
483 µS/cm
Sampled 7 Sep 2026, 24 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:21 | 483 | 483 µS/cm |
| 17 Aug 2026, 10:11 | 537 | 537 µS/cm |
| 3 Jul 2026, 11:57 | 456 | 456 µS/cm |
| 8 Jun 2026, 12:59 | 389 | 389 µS/cm |
| 1 May 2026, 09:47 | 393 | 393 µS/cm |
| 14 Apr 2026, 10:46 | 369 | 369 µS/cm |
| 12 Mar 2025, 12:08 | 341 | 341 µS/cm |
| 25 Feb 2025, 14:33 | 305 | 305 µS/cm |
| 29 Jan 2025, 12:25 | 324 | 324 µS/cm |
| 16 Dec 2024, 10:14 | 324 | 324 µS/cm |
| 13 Nov 2024, 08:46 | 358 | 358 µS/cm |
| 15 Oct 2024, 14:51 | 341 | 341 µS/cm |
| 27 Sep 2024, 13:26 | 366 | 366 µS/cm |
| 13 Aug 2024, 10:27 | 572 | 572 µS/cm |
| 31 Jul 2024, 11:20 | 425 | 425 µS/cm |
| 21 Jun 2024, 11:00 | 422 | 422 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 16 | Jun 2024 – Sep 2026 | 89.2% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 16 | Jun 2024 – Sep 2026 | 8.47 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 16 | Jun 2024 – Sep 2026 | 17.7 °C 7 Sep 2026 |
| pH 0061 | River water | 16 | Jun 2024 – Sep 2026 | 7.85 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 16 | Jun 2024 – Sep 2026 | below 0.03 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 16 | Jun 2024 – Sep 2026 | 0.606 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 16 | Jun 2024 – Sep 2026 | 0.044 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 16 | Jun 2024 – Sep 2026 | 483 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 16 | Jun 2024 – Sep 2026 | 130 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 16 | Jun 2024 – Sep 2026 | below 0.00068 mg/l 7 Sep 2026 |
| Nitrite as N 0118 | River water | 16 | Jun 2024 – Sep 2026 | below 0.004 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 16 | Jun 2024 – Sep 2026 | 0.61 mg/l 7 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.