Broad Rife upstream of Sidlesham sewage treatment works
EA name: BROAD RIFE U/S SIDLESHAM STW (also listed as “BROAD RIFE UPSTREAM SIDLESHAM SEWAGE TREATMENT WORKS”)
Environment Agency sampling point SO-F0003359 · 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 May 2026, 14:575 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 16 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 485130, 96070As published, to the nearest 10 m. Open in a map
- River, by its own name
- Broad Rife
- River, by the map
- Broad RifePlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
31.1%
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 31.1 | 31.1% |
| 21 Apr 2026, 11:13 | 57.4 | 57.4% |
| 2 Mar 2026, 14:18 | 70 | 70% |
| 5 Feb 2026, 14:28 | 67.1 | 67.1% |
| 7 Jan 2026, 12:13 | 46.5 | 46.5% |
| 18 Dec 2025, 13:30 | 65.3 | 65.3% |
| 4 Mar 2025, 11:59 | 91.1 | 91.1% |
| 6 Feb 2025, 14:26 | 75.3 | 75.3% |
| 21 Jan 2025, 14:24 | 71 | 71% |
| 3 Dec 2024, 09:53 | 57.3 | 57.3% |
| 22 Nov 2024, 10:43 | 45.4 | 45.4% |
| 14 Oct 2024, 09:10 | 47.1 | 47.1% |
| 23 Sep 2024, 10:49 | 50.5 | 50.5% |
| 21 Aug 2024, 10:25 | 35.2 | 35.2% |
| 15 Jul 2024, 10:34 | 61.2 | 61.2% |
| 21 Jun 2024, 12:37 | 45 | 45% |
| 16 May 2024, 09:36 | 37.8 | 37.8% |
| 19 Apr 2024, 10:08 | 81.3 | 81.3% |
| 18 Mar 2024, 09:49 | 74 | 74% |
| 19 Feb 2024, 11:01 | 62.5 | 62.5% |
| 16 Jan 2024, 09:53 | 73.2 | 73.2% |
| 5 Dec 2023, 10:47 | 71.4 | 71.4% |
| 21 Nov 2023, 11:45 | 53.7 | 53.7% |
| 16 Oct 2023, 09:25 | 42.1 | 42.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
3.19 mg/l
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 3.19 | 3.19 mg/l |
| 21 Apr 2026, 11:13 | 6.23 | 6.23 mg/l |
| 2 Mar 2026, 14:18 | 7.74 | 7.74 mg/l |
| 5 Feb 2026, 14:28 | 7.82 | 7.82 mg/l |
| 7 Jan 2026, 12:13 | 5.69 | 5.69 mg/l |
| 18 Dec 2025, 13:30 | 7.39 | 7.39 mg/l |
| 4 Mar 2025, 11:59 | 11.4 | 11.4 mg/l |
| 6 Feb 2025, 14:26 | 9.24 | 9.24 mg/l |
| 21 Jan 2025, 14:24 | 8.99 | 8.99 mg/l |
| 3 Dec 2024, 09:53 | 6.69 | 6.69 mg/l |
| 22 Nov 2024, 10:43 | 5.81 | 5.81 mg/l |
| 14 Oct 2024, 09:10 | 5.03 | 5.03 mg/l |
| 23 Sep 2024, 10:49 | 4.78 | 4.78 mg/l |
| 21 Aug 2024, 10:25 | 3.41 | 3.41 mg/l |
| 15 Jul 2024, 10:34 | 5.86 | 5.86 mg/l |
| 21 Jun 2024, 12:37 | 4.11 | 4.11 mg/l |
| 16 May 2024, 09:36 | 3.79 | 3.79 mg/l |
| 19 Apr 2024, 10:08 | 8.78 | 8.78 mg/l |
| 18 Mar 2024, 09:49 | 8.2 | 8.2 mg/l |
| 19 Feb 2024, 11:01 | 7.04 | 7.04 mg/l |
| 16 Jan 2024, 09:53 | 9.97 | 9.97 mg/l |
| 5 Dec 2023, 10:47 | 8.53 | 8.53 mg/l |
| 21 Nov 2023, 11:45 | 5.91 | 5.91 mg/l |
| 16 Oct 2023, 09:25 | 4.8 | 4.8 mg/l |
Water temperature
code 0076 · °C
14.1 °C
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 14.1 | 14.1 °C |
| 21 Apr 2026, 11:13 | 11.6 | 11.6 °C |
| 2 Mar 2026, 14:18 | 10.8 | 10.8 °C |
| 5 Feb 2026, 14:28 | 8.6 | 8.6 °C |
| 7 Jan 2026, 12:13 | 6.6 | 6.6 °C |
| 18 Dec 2025, 13:30 | 9.8 | 9.8 °C |
| 4 Mar 2025, 11:59 | 5.7 | 5.7 °C |
| 6 Feb 2025, 14:26 | 6.5 | 6.5 °C |
| 21 Jan 2025, 14:24 | 5.3 | 5.3 °C |
| 3 Dec 2024, 09:53 | 8.5 | 8.5 °C |
| 22 Nov 2024, 10:43 | 4.9 | 4.9 °C |
| 14 Oct 2024, 09:10 | 12.3 | 12.3 °C |
| 23 Sep 2024, 10:49 | 17.9 | 17.9 °C |
| 21 Aug 2024, 10:25 | 16.8 | 16.8 °C |
| 15 Jul 2024, 10:34 | 17.3 | 17.3 °C |
| 21 Jun 2024, 12:37 | 19.6 | 19.6 °C |
| 16 May 2024, 09:36 | 15.1 | 15.1 °C |
| 19 Apr 2024, 10:08 | 11.8 | 11.8 °C |
| 18 Mar 2024, 09:49 | 10.7 | 10.7 °C |
| 19 Feb 2024, 11:01 | 10 | 10 °C |
| 16 Jan 2024, 09:53 | 2.5 | 2.5 °C |
| 5 Dec 2023, 10:47 | 7.6 | 7.6 °C |
| 21 Nov 2023, 11:45 | 11 | 11 °C |
| 16 Oct 2023, 09:25 | 9.5 | 9.5 °C |
pH
code 0061
7.48
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 7.48 | 7.48 |
| 21 Apr 2026, 11:13 | 7.41 | 7.41 |
| 2 Mar 2026, 14:18 | 7.46 | 7.46 |
| 5 Feb 2026, 14:28 | 7.74 | 7.74 |
| 7 Jan 2026, 12:13 | 7.53 | 7.53 |
| 18 Dec 2025, 13:30 | 7.54 | 7.54 |
| 4 Mar 2025, 11:59 | 7.76 | 7.76 |
| 6 Feb 2025, 14:26 | 7.67 | 7.67 |
| 21 Jan 2025, 14:24 | 7.58 | 7.58 |
| 3 Dec 2024, 09:53 | 7.86 | 7.86 |
| 22 Nov 2024, 10:43 | 7.52 | 7.52 |
| 14 Oct 2024, 09:10 | 7.3 | 7.3 |
| 23 Sep 2024, 10:49 | 7.67 | 7.67 |
| 21 Aug 2024, 10:25 | 7.38 | 7.38 |
| 15 Jul 2024, 10:34 | 7.64 | 7.64 |
| 21 Jun 2024, 12:37 | 7.54 | 7.54 |
| 16 May 2024, 09:36 | 7.44 | 7.44 |
| 19 Apr 2024, 10:08 | 7.7 | 7.7 |
| 18 Mar 2024, 09:49 | 7.58 | 7.58 |
| 19 Feb 2024, 11:01 | 7.49 | 7.49 |
| 16 Jan 2024, 09:53 | 7.79 | 7.79 |
| 5 Dec 2023, 10:47 | 7.62 | 7.62 |
| 21 Nov 2023, 11:45 | 7.3 | 7.3 |
| 16 Oct 2023, 09:25 | 7.44 | 7.44 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.045 mg/l
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 0.045 | 0.045 mg/l |
| 21 Apr 2026, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 14:18 | 0.052 | 0.052 mg/l |
| 5 Feb 2026, 14:28 | 0.055 | 0.055 mg/l |
| 7 Jan 2026, 12:13 | 1.1 | 1.1 mg/l |
| 18 Dec 2025, 13:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2025, 11:59 | 0.032 | 0.032 mg/l |
| 6 Feb 2025, 14:26 | 0.048 | 0.048 mg/l |
| 21 Jan 2025, 14:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2024, 09:53 | 0.07 | 0.07 mg/l |
| 22 Nov 2024, 10:43 | 0.39 | 0.39 mg/l |
| 14 Oct 2024, 09:10 | 0.72 | 0.72 mg/l |
| 23 Sep 2024, 10:49 | 5 | 5 mg/l |
| 21 Aug 2024, 10:25 | 2.3 | 2.3 mg/l |
| 15 Jul 2024, 10:34 | 1.8 | 1.8 mg/l |
| 21 Jun 2024, 12:37 | 4.2 | 4.2 mg/l |
| 16 May 2024, 09:36 | 0.24 | 0.24 mg/l |
| 19 Apr 2024, 10:08 | 0.062 | 0.062 mg/l |
| 18 Mar 2024, 09:49 | 0.035 | 0.035 mg/l |
| 19 Feb 2024, 11:01 | 0.037 | 0.037 mg/l |
| 16 Jan 2024, 09:53 | 0.077 | 0.077 mg/l |
| 5 Dec 2023, 10:47 | 0.17 | 0.17 mg/l |
| 21 Nov 2023, 11:45 | 0.096 | 0.096 mg/l |
| 16 Oct 2023, 09:25 | 0.06 | 0.06 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.262 mg/l
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 0.262 | 0.262 mg/l |
| 21 Apr 2026, 11:13 | 1.7 | 1.7 mg/l |
| 2 Mar 2026, 14:18 | 8.18 | 8.18 mg/l |
| 5 Feb 2026, 14:28 | 6.47 | 6.47 mg/l |
| 7 Jan 2026, 12:13 | 12.6 | 12.6 mg/l |
| 18 Dec 2025, 13:30 | 8.56 | 8.56 mg/l |
| 4 Mar 2025, 11:59 | 8.19 | 8.19 mg/l |
| 6 Feb 2025, 14:26 | 8.18 | 8.18 mg/l |
| 21 Jan 2025, 14:24 | 7.48 | 7.48 mg/l |
| 3 Dec 2024, 09:53 | 7.8 | 7.8 mg/l |
| 22 Nov 2024, 10:43 | 2.83 | 2.83 mg/l |
| 14 Oct 2024, 09:10 | 4.64 | 4.64 mg/l |
| 23 Sep 2024, 10:49 | 10.8 | 10.8 mg/l |
| 21 Aug 2024, 10:25 | 3.82 | 3.82 mg/l |
| 15 Jul 2024, 10:34 | 13.6 | 13.6 mg/l |
| 21 Jun 2024, 12:37 | 4.61 | 4.61 mg/l |
| 16 May 2024, 09:36 | 3.21 | 3.21 mg/l |
| 19 Apr 2024, 10:08 | 4.46 | 4.46 mg/l |
| 18 Mar 2024, 09:49 | 6.58 | 6.58 mg/l |
| 19 Feb 2024, 11:01 | 4.58 | 4.58 mg/l |
| 16 Jan 2024, 09:53 | 8.37 | 8.37 mg/l |
| 5 Dec 2023, 10:47 | 5.06 | 5.06 mg/l |
| 21 Nov 2023, 11:45 | 6.92 | 6.92 mg/l |
| 16 Oct 2023, 09:25 | 0.248 | 0.248 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.13 mg/l
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 0.13 | 0.13 mg/l |
| 21 Apr 2026, 11:13 | 0.064 | 0.064 mg/l |
| 2 Mar 2026, 14:18 | 0.15 | 0.15 mg/l |
| 5 Feb 2026, 14:28 | 0.36 | 0.36 mg/l |
| 7 Jan 2026, 12:13 | 0.13 | 0.13 mg/l |
| 18 Dec 2025, 13:30 | 0.14 | 0.14 mg/l |
| 4 Mar 2025, 11:59 | 0.04 | 0.04 mg/l |
| 6 Feb 2025, 14:26 | 0.093 | 0.093 mg/l |
| 21 Jan 2025, 14:24 | 0.1 | 0.1 mg/l |
| 3 Dec 2024, 09:53 | 0.17 | 0.17 mg/l |
| 22 Nov 2024, 10:43 | 0.11 | 0.11 mg/l |
| 14 Oct 2024, 09:10 | 0.15 | 0.15 mg/l |
| 23 Sep 2024, 10:49 | 0.11 | 0.11 mg/l |
| 21 Aug 2024, 10:25 | 0.41 | 0.41 mg/l |
| 15 Jul 2024, 10:34 | 0.27 | 0.27 mg/l |
| 21 Jun 2024, 12:37 | 0.57 | 0.57 mg/l |
| 16 May 2024, 09:36 | 0.2 | 0.2 mg/l |
| 19 Apr 2024, 10:08 | 0.068 | 0.068 mg/l |
| 18 Mar 2024, 09:49 | 0.13 | 0.13 mg/l |
| 19 Feb 2024, 11:01 | 0.18 | 0.18 mg/l |
| 16 Jan 2024, 09:53 | 0.12 | 0.12 mg/l |
| 5 Dec 2023, 10:47 | 0.19 | 0.19 mg/l |
| 21 Nov 2023, 11:45 | 0.22 | 0.22 mg/l |
| 16 Oct 2023, 09:25 | 0.14 | 0.14 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
866 µS/cm
Sampled 7 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 14:57 | 866 | 866 µS/cm |
| 21 Apr 2026, 11:13 | 868 | 868 µS/cm |
| 2 Mar 2026, 14:18 | 803 | 803 µS/cm |
| 5 Feb 2026, 14:28 | 628 | 628 µS/cm |
| 7 Jan 2026, 12:13 | 2240 | 2240 µS/cm |
| 18 Dec 2025, 13:30 | 852 | 852 µS/cm |
| 4 Mar 2025, 11:59 | 859 | 859 µS/cm |
| 6 Feb 2025, 14:26 | 897 | 897 µS/cm |
| 21 Jan 2025, 14:24 | 910 | 910 µS/cm |
| 3 Dec 2024, 09:53 | 809 | 809 µS/cm |
| 22 Nov 2024, 10:43 | 1316 | 1316 µS/cm |
| 14 Oct 2024, 09:10 | 992 | 992 µS/cm |
| 23 Sep 2024, 10:49 | 4077 | 4077 µS/cm |
| 21 Aug 2024, 10:25 | 2025 | 2025 µS/cm |
| 15 Jul 2024, 10:34 | 1377 | 1377 µS/cm |
| 21 Jun 2024, 12:37 | 1835 | 1835 µS/cm |
| 16 May 2024, 09:36 | 893 | 893 µS/cm |
| 19 Apr 2024, 10:08 | 1124 | 1124 µS/cm |
| 18 Mar 2024, 09:49 | 663 | 663 µS/cm |
| 19 Feb 2024, 11:01 | 493 | 493 µS/cm |
| 16 Jan 2024, 09:53 | 883 | 883 µS/cm |
| 5 Dec 2023, 10:47 | 635 | 635 µS/cm |
| 21 Nov 2023, 11:45 | 737 | 737 µS/cm |
| 16 Oct 2023, 09:25 | 801 | 801 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 | Oct 2023 – May 2026 | 31.1% 7 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Oct 2023 – May 2026 | 3.19 mg/l 7 May 2026 |
| Temperature of Water 0076 | River water | 24 | Oct 2023 – May 2026 | 14.1 °C 7 May 2026 |
| pH 0061 | River water | 24 | Oct 2023 – May 2026 | 7.48 7 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Oct 2023 – May 2026 | 0.045 mg/l 7 May 2026 |
| Nitrate as N 0117 | River water | 24 | Oct 2023 – May 2026 | 0.262 mg/l 7 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Oct 2023 – May 2026 | 0.13 mg/l 7 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Oct 2023 – May 2026 | 866 µS/cm 7 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Oct 2023 – May 2026 | 270 mg/l 7 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Oct 2023 – May 2026 | 0.00034 mg/l 7 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 20 | Feb 2024 – May 2026 | 1 mg/l 7 May 2026 |
| Nitrite as N 0118 | River water | 24 | Oct 2023 – May 2026 | 0.0076 mg/l 7 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Oct 2023 – May 2026 | 0.27 mg/l 7 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.