Staplefields Bridge Black Sewer
EA name: STAPLEFIELDS BR BLACK SEWER (also listed as “ADUR TIDAL BLACK SEWER STAPLEFIELDS BRIDGE”)
Environment Agency sampling point SO-F0002537 · 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
- 11 May 2026, 11:125 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
- 24 since 28 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 517100, 112300As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedGrid reference only to 100 m and no line carries the name it gives, so position alone cannot choose. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
90.5%
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 90.5 | 90.5% |
| 1 Apr 2026, 10:23 | 83.8 | 83.8% |
| 11 Mar 2026, 11:34 | 87 | 87% |
| 11 Feb 2026, 12:42 | 98.4 | 98.4% |
| 7 Jan 2026, 15:23 | 97.8 | 97.8% |
| 2 Dec 2025, 11:12 | 94.7 | 94.7% |
| 6 Nov 2025, 14:55 | 89.7 | 89.7% |
| 2 Oct 2025, 14:49 | 75.5 | 75.5% |
| 8 Sep 2025, 13:57 | 63.5 | 63.5% |
| 6 Aug 2025, 14:08 | 60.5 | 60.5% |
| 10 Jul 2025, 11:03 | 52.2 | 52.2% |
| 3 Jun 2025, 10:17 | 61.4 | 61.4% |
| 6 May 2025, 10:02 | 85.5 | 85.5% |
| 1 Apr 2025, 15:55 | 101 | 101% |
| 12 Mar 2025, 09:42 | 98.9 | 98.9% |
| 5 Feb 2025, 11:51 | 98.4 | 98.4% |
| 22 Jan 2025, 09:26 | 98.7 | 98.7% |
| 13 Dec 2024, 10:09 | 95.1 | 95.1% |
| 29 Nov 2024, 11:07 | 94.9 | 94.9% |
| 19 Nov 2024, 10:43 | 91.9 | 91.9% |
| 23 Sep 2024, 13:15 | 91.6 | 91.6% |
| 19 Aug 2024, 15:57 | 67.7 | 67.7% |
| 31 Jul 2024, 13:12 | 69.2 | 69.2% |
| 28 Jun 2024, 13:57 | 77.8 | 77.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.96 mg/l
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 9.96 | 9.96 mg/l |
| 1 Apr 2026, 10:23 | 9.44 | 9.44 mg/l |
| 11 Mar 2026, 11:34 | 9.71 | 9.71 mg/l |
| 11 Feb 2026, 12:42 | 11.1 | 11.1 mg/l |
| 7 Jan 2026, 15:23 | 12.7 | 12.7 mg/l |
| 2 Dec 2025, 11:12 | 11 | 11 mg/l |
| 6 Nov 2025, 14:55 | 9.32 | 9.32 mg/l |
| 2 Oct 2025, 14:49 | 8.14 | 8.14 mg/l |
| 8 Sep 2025, 13:57 | 6.25 | 6.25 mg/l |
| 6 Aug 2025, 14:08 | 6.07 | 6.07 mg/l |
| 10 Jul 2025, 11:03 | 5.17 | 5.17 mg/l |
| 3 Jun 2025, 10:17 | 6.26 | 6.26 mg/l |
| 6 May 2025, 10:02 | 9.68 | 9.68 mg/l |
| 1 Apr 2025, 15:55 | 11 | 11 mg/l |
| 12 Mar 2025, 09:42 | 11.8 | 11.8 mg/l |
| 5 Feb 2025, 11:51 | 12.1 | 12.1 mg/l |
| 22 Jan 2025, 09:26 | 12.3 | 12.3 mg/l |
| 13 Dec 2024, 10:09 | 11.4 | 11.4 mg/l |
| 29 Nov 2024, 11:07 | 11.3 | 11.3 mg/l |
| 19 Nov 2024, 10:43 | 10.5 | 10.5 mg/l |
| 23 Sep 2024, 13:15 | 8.96 | 8.96 mg/l |
| 19 Aug 2024, 15:57 | 6.68 | 6.68 mg/l |
| 31 Jul 2024, 13:12 | 6.51 | 6.51 mg/l |
| 28 Jun 2024, 13:57 | 7.66 | 7.66 mg/l |
Water temperature
code 0076 · °C
11 °C
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 11 | 11 °C |
| 1 Apr 2026, 10:23 | 10 | 10 °C |
| 11 Mar 2026, 11:34 | 10.4 | 10.4 °C |
| 11 Feb 2026, 12:42 | 10.1 | 10.1 °C |
| 7 Jan 2026, 15:23 | 4.3 | 4.3 °C |
| 2 Dec 2025, 11:12 | 8.9 | 8.9 °C |
| 6 Nov 2025, 14:55 | 13.5 | 13.5 °C |
| 2 Oct 2025, 14:49 | 11.9 | 11.9 °C |
| 8 Sep 2025, 13:57 | 16 | 16 °C |
| 6 Aug 2025, 14:08 | 15.1 | 15.1 °C |
| 10 Jul 2025, 11:03 | 15.7 | 15.7 °C |
| 3 Jun 2025, 10:17 | 14.4 | 14.4 °C |
| 6 May 2025, 10:02 | 9.8 | 9.8 °C |
| 1 Apr 2025, 15:55 | 11.4 | 11.4 °C |
| 12 Mar 2025, 09:42 | 7.6 | 7.6 °C |
| 5 Feb 2025, 11:51 | 6.4 | 6.4 °C |
| 22 Jan 2025, 09:26 | 5.8 | 5.8 °C |
| 13 Dec 2024, 10:09 | 7.6 | 7.6 °C |
| 29 Nov 2024, 11:07 | 7.7 | 7.7 °C |
| 19 Nov 2024, 10:43 | 9.5 | 9.5 °C |
| 23 Sep 2024, 13:15 | 16.3 | 16.3 °C |
| 19 Aug 2024, 15:57 | 15.9 | 15.9 °C |
| 31 Jul 2024, 13:12 | 18.2 | 18.2 °C |
| 28 Jun 2024, 13:57 | 16 | 16 °C |
pH
code 0061
8.03
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 8.03 | 8.03 |
| 1 Apr 2026, 10:23 | 8.08 | 8.08 |
| 11 Mar 2026, 11:34 | 7.9 | 7.9 |
| 11 Feb 2026, 12:42 | 8.05 | 8.05 |
| 7 Jan 2026, 15:23 | 7.94 | 7.94 |
| 2 Dec 2025, 11:12 | 7.78 | 7.78 |
| 6 Nov 2025, 14:55 | 7.72 | 7.72 |
| 2 Oct 2025, 14:49 | 7.59 | 7.59 |
| 8 Sep 2025, 13:57 | 7.55 | 7.55 |
| 6 Aug 2025, 14:08 | 7.65 | 7.65 |
| 10 Jul 2025, 11:03 | 7.97 | 7.97 |
| 3 Jun 2025, 10:17 | 7.65 | 7.65 |
| 6 May 2025, 10:02 | 7.86 | 7.86 |
| 1 Apr 2025, 15:55 | 8.2 | 8.2 |
| 12 Mar 2025, 09:42 | 8.16 | 8.16 |
| 5 Feb 2025, 11:51 | 8.37 | 8.37 |
| 22 Jan 2025, 09:26 | 8.17 | 8.17 |
| 13 Dec 2024, 10:09 | 8.02 | 8.02 |
| 29 Nov 2024, 11:07 | 7.78 | 7.78 |
| 19 Nov 2024, 10:43 | 7.7 | 7.7 |
| 23 Sep 2024, 13:15 | 7.71 | 7.71 |
| 19 Aug 2024, 15:57 | 7.6 | 7.6 |
| 31 Jul 2024, 13:12 | 7.57 | 7.57 |
| 28 Jun 2024, 13:57 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Apr 2026, 10:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Mar 2026, 11:34 | 0.031 | 0.031 mg/l |
| 11 Feb 2026, 12:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2026, 15:23 | 0.032 | 0.032 mg/l |
| 2 Dec 2025, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2025, 14:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Oct 2025, 14:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Sep 2025, 13:57 | 0.042 | 0.042 mg/l |
| 6 Aug 2025, 14:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jul 2025, 11:03 | 0.039 | 0.039 mg/l |
| 3 Jun 2025, 10:17 | 0.081 | 0.081 mg/l |
| 6 May 2025, 10:02 | 0.033 | 0.033 mg/l |
| 1 Apr 2025, 15:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2025, 09:42 | 0.076 | 0.076 mg/l |
| 5 Feb 2025, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jan 2025, 09:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Dec 2024, 10:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Nov 2024, 11:07 | 0.062 | 0.062 mg/l |
| 19 Nov 2024, 10:43 | 0.49 | 0.49 mg/l |
| 23 Sep 2024, 13:15 | 0.062 | 0.062 mg/l |
| 19 Aug 2024, 15:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Jul 2024, 13:12 | 0.035 | 0.035 mg/l |
| 28 Jun 2024, 13:57 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.985 mg/l
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 0.985 | 0.985 mg/l |
| 1 Apr 2026, 10:23 | 3.19 | 3.19 mg/l |
| 11 Mar 2026, 11:34 | 1.99 | 1.99 mg/l |
| 11 Feb 2026, 12:42 | 2.8 | 2.8 mg/l |
| 7 Jan 2026, 15:23 | 2.29 | 2.29 mg/l |
| 2 Dec 2025, 11:12 | 1.19 | 1.19 mg/l |
| 6 Nov 2025, 14:55 | 0.834 | 0.834 mg/l |
| 2 Oct 2025, 14:49 | 0.406 | 0.406 mg/l |
| 8 Sep 2025, 13:57 | 0.516 | 0.516 mg/l |
| 6 Aug 2025, 14:08 | 0.564 | 0.564 mg/l |
| 10 Jul 2025, 11:03 | 0.494 | 0.494 mg/l |
| 3 Jun 2025, 10:17 | 0.656 | 0.656 mg/l |
| 6 May 2025, 10:02 | 0.742 | 0.742 mg/l |
| 1 Apr 2025, 15:55 | 1.39 | 1.39 mg/l |
| 12 Mar 2025, 09:42 | 2.59 | 2.59 mg/l |
| 5 Feb 2025, 11:51 | 2.69 | 2.69 mg/l |
| 22 Jan 2025, 09:26 | 3.09 | 3.09 mg/l |
| 13 Dec 2024, 10:09 | 2.39 | 2.39 mg/l |
| 29 Nov 2024, 11:07 | 1.59 | 1.59 mg/l |
| 19 Nov 2024, 10:43 | 3.17 | 3.17 mg/l |
| 23 Sep 2024, 13:15 | 2.68 | 2.68 mg/l |
| 19 Aug 2024, 15:57 | 0.526 | 0.526 mg/l |
| 31 Jul 2024, 13:12 | 0.546 | 0.546 mg/l |
| 28 Jun 2024, 13:57 | 0.566 | 0.566 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.047 mg/l
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 0.047 | 0.047 mg/l |
| 1 Apr 2026, 10:23 | 0.017 | 0.017 mg/l |
| 11 Mar 2026, 11:34 | 0.06 | 0.06 mg/l |
| 11 Feb 2026, 12:42 | 0.063 | 0.063 mg/l |
| 7 Jan 2026, 15:23 | 0.045 | 0.045 mg/l |
| 2 Dec 2025, 11:12 | 0.089 | 0.089 mg/l |
| 6 Nov 2025, 14:55 | 0.069 | 0.069 mg/l |
| 2 Oct 2025, 14:49 | 0.091 | 0.091 mg/l |
| 8 Sep 2025, 13:57 | 0.12 | 0.12 mg/l |
| 6 Aug 2025, 14:08 | 0.17 | 0.17 mg/l |
| 10 Jul 2025, 11:03 | 0.16 | 0.16 mg/l |
| 3 Jun 2025, 10:17 | 0.099 | 0.099 mg/l |
| 6 May 2025, 10:02 | 0.071 | 0.071 mg/l |
| 1 Apr 2025, 15:55 | 0.012 | 0.012 mg/l |
| 12 Mar 2025, 09:42 | 0.019 | 0.019 mg/l |
| 5 Feb 2025, 11:51 | 0.03 | 0.03 mg/l |
| 22 Jan 2025, 09:26 | 0.029 | 0.029 mg/l |
| 13 Dec 2024, 10:09 | 0.046 | 0.046 mg/l |
| 29 Nov 2024, 11:07 | 0.093 | 0.093 mg/l |
| 19 Nov 2024, 10:43 | 0.14 | 0.14 mg/l |
| 23 Sep 2024, 13:15 | 0.15 | 0.15 mg/l |
| 19 Aug 2024, 15:57 | 0.12 | 0.12 mg/l |
| 31 Jul 2024, 13:12 | 0.1 | 0.1 mg/l |
| 28 Jun 2024, 13:57 | 0.063 | 0.063 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
456 µS/cm
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 11:12 | 456 | 456 µS/cm |
| 1 Apr 2026, 10:23 | 535 | 535 µS/cm |
| 11 Mar 2026, 11:34 | 421 | 421 µS/cm |
| 11 Feb 2026, 12:42 | 466 | 466 µS/cm |
| 7 Jan 2026, 15:23 | 617 | 617 µS/cm |
| 2 Dec 2025, 11:12 | 400 | 400 µS/cm |
| 6 Nov 2025, 14:55 | 462 | 462 µS/cm |
| 2 Oct 2025, 14:49 | 524 | 524 µS/cm |
| 8 Sep 2025, 13:57 | 483 | 483 µS/cm |
| 6 Aug 2025, 14:08 | 486 | 486 µS/cm |
| 10 Jul 2025, 11:03 | 479 | 479 µS/cm |
| 3 Jun 2025, 10:17 | 466 | 466 µS/cm |
| 6 May 2025, 10:02 | 504 | 504 µS/cm |
| 1 Apr 2025, 15:55 | 404 | 404 µS/cm |
| 12 Mar 2025, 09:42 | 518 | 518 µS/cm |
| 5 Feb 2025, 11:51 | 598 | 598 µS/cm |
| 22 Jan 2025, 09:26 | 579 | 579 µS/cm |
| 13 Dec 2024, 10:09 | 540 | 540 µS/cm |
| 29 Nov 2024, 11:07 | 458 | 458 µS/cm |
| 19 Nov 2024, 10:43 | 471 | 471 µS/cm |
| 23 Sep 2024, 13:15 | 392 | 392 µS/cm |
| 19 Aug 2024, 15:57 | 506 | 506 µS/cm |
| 31 Jul 2024, 13:12 | 457 | 457 µS/cm |
| 28 Jun 2024, 13:57 | 413 | 413 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 | 24 | Jun 2024 – May 2026 | 90.5% 11 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jun 2024 – May 2026 | 9.96 mg/l 11 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 11 °C 11 May 2026 |
| pH 0061 | River water | 24 | Jun 2024 – May 2026 | 8.03 11 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jun 2024 – May 2026 | below 0.03 mg/l 11 May 2026 |
| Nitrate as N 0117 | River water | 24 | Jun 2024 – May 2026 | 0.985 mg/l 11 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Jun 2024 – May 2026 | 0.047 mg/l 11 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jun 2024 – May 2026 | 456 µS/cm 11 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 180 mg/l 11 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jun 2024 – May 2026 | below 0.00059 mg/l 11 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.3 mg/l 11 May 2026 |
| Nitrite as N 0118 | River water | 24 | Jun 2024 – May 2026 | 0.0053 mg/l 11 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jun 2024 – May 2026 | 0.99 mg/l 11 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.