Herring Stream Road Bridge Twineham PL
EA name: HERRING STRM RD BR TWINEHAM PL (also listed as “RIVER ADUR (EAST)TRIBUTARY HERRING STREAM ROAD BRIDGE AT TWINEHAM PLACE”)
Environment Agency sampling point SO-F0002698 · 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, 13:474 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 525500, 119400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Herring Stream Road Bridge
- 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) (30 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
82.8%
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 82.8 | 82.8% |
| 14 May 2026, 13:21 | 91.4 | 91.4% |
| 13 Apr 2026, 14:12 | 105.1 | 105.1% |
| 18 Mar 2026, 10:28 | 85.7 | 85.7% |
| 3 Mar 2026, 12:55 | 100.8 | 100.8% |
| 26 Feb 2026, 13:43 | 83.1 | 83.1% |
| 3 Feb 2026, 11:16 | 96.5 | 96.5% |
| 30 Jan 2026, 10:35 | 98.6 | 98.6% |
| 16 Dec 2025, 13:17 | 95.5 | 95.5% |
| 1 Dec 2025, 14:19 | 93 | 93% |
| 19 Nov 2025, 13:35 | 91.4 | 91.4% |
| 5 Nov 2025, 14:09 | 84 | 84% |
| 3 Oct 2025, 13:38 | 79.2 | 79.2% |
| 1 Sep 2025, 12:04 | 72.8 | 72.8% |
| 12 Aug 2025, 12:43 | 86.2 | 86.2% |
| 4 Jul 2025, 11:53 | 81.2 | 81.2% |
| 6 Jun 2025, 11:23 | 75.5 | 75.5% |
| 7 May 2025, 12:16 | 100.5 | 100.5% |
| 3 Apr 2025, 12:28 | 106.2 | 106.2% |
| 5 Mar 2025, 11:40 | 101.9 | 101.9% |
| 7 Feb 2025, 11:19 | 99.6 | 99.6% |
| 22 Jan 2025, 09:56 | 98.6 | 98.6% |
| 10 Dec 2024, 10:57 | 93.1 | 93.1% |
| 26 Nov 2024, 13:02 | 90.4 | 90.4% |
| 31 Oct 2024, 11:24 | 89.9 | 89.9% |
| 17 Sep 2024, 15:03 | 82.4 | 82.4% |
| 23 Aug 2024, 13:49 | 79.8 | 79.8% |
| 19 Jul 2024, 13:18 | 79.5 | 79.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.44 mg/l
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 8.44 | 8.44 mg/l |
| 14 May 2026, 13:21 | 9.96 | 9.96 mg/l |
| 13 Apr 2026, 14:12 | 11.4 | 11.4 mg/l |
| 18 Mar 2026, 10:28 | 9.56 | 9.56 mg/l |
| 3 Mar 2026, 12:55 | 11.3 | 11.3 mg/l |
| 26 Feb 2026, 13:43 | 9.21 | 9.21 mg/l |
| 3 Feb 2026, 11:16 | 11.4 | 11.4 mg/l |
| 30 Jan 2026, 10:35 | 11.7 | 11.7 mg/l |
| 16 Dec 2025, 13:17 | 10.7 | 10.7 mg/l |
| 1 Dec 2025, 14:19 | 10.7 | 10.7 mg/l |
| 19 Nov 2025, 13:35 | 11.2 | 11.2 mg/l |
| 5 Nov 2025, 14:09 | 8.75 | 8.75 mg/l |
| 3 Oct 2025, 13:38 | 8.25 | 8.25 mg/l |
| 1 Sep 2025, 12:04 | 7.09 | 7.09 mg/l |
| 12 Aug 2025, 12:43 | 8.07 | 8.07 mg/l |
| 4 Jul 2025, 11:53 | 7.83 | 7.83 mg/l |
| 6 Jun 2025, 11:23 | 7.78 | 7.78 mg/l |
| 7 May 2025, 12:16 | 10.9 | 10.9 mg/l |
| 3 Apr 2025, 12:28 | 11.3 | 11.3 mg/l |
| 5 Mar 2025, 11:40 | 12.8 | 12.8 mg/l |
| 7 Feb 2025, 11:19 | 12.6 | 12.6 mg/l |
| 22 Jan 2025, 09:56 | 12.3 | 12.3 mg/l |
| 10 Dec 2024, 10:57 | 10.9 | 10.9 mg/l |
| 26 Nov 2024, 13:02 | 10.4 | 10.4 mg/l |
| 31 Oct 2024, 11:24 | 9.37 | 9.37 mg/l |
| 17 Sep 2024, 15:03 | 8.47 | 8.47 mg/l |
| 23 Aug 2024, 13:49 | 7.66 | 7.66 mg/l |
| 19 Jul 2024, 13:18 | 7.45 | 7.45 mg/l |
Water temperature
code 0076 · °C
14.4 °C
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 14.4 | 14.4 °C |
| 14 May 2026, 13:21 | 11.4 | 11.4 °C |
| 13 Apr 2026, 14:12 | 11.5 | 11.5 °C |
| 18 Mar 2026, 10:28 | 10.4 | 10.4 °C |
| 3 Mar 2026, 12:55 | 10.2 | 10.2 °C |
| 26 Feb 2026, 13:43 | 10.7 | 10.7 °C |
| 3 Feb 2026, 11:16 | 8 | 8 °C |
| 30 Jan 2026, 10:35 | 7.7 | 7.7 °C |
| 16 Dec 2025, 13:17 | 10.4 | 10.4 °C |
| 1 Dec 2025, 14:19 | 9.2 | 9.2 °C |
| 19 Nov 2025, 13:35 | 6.4 | 6.4 °C |
| 5 Nov 2025, 14:09 | 13.4 | 13.4 °C |
| 3 Oct 2025, 13:38 | 13.4 | 13.4 °C |
| 1 Sep 2025, 12:04 | 16.5 | 16.5 °C |
| 12 Aug 2025, 12:43 | 18.4 | 18.4 °C |
| 4 Jul 2025, 11:53 | 17 | 17 °C |
| 6 Jun 2025, 11:23 | 13.9 | 13.9 °C |
| 7 May 2025, 12:16 | 11.5 | 11.5 °C |
| 3 Apr 2025, 12:28 | 12.6 | 12.6 °C |
| 5 Mar 2025, 11:40 | 5.5 | 5.5 °C |
| 7 Feb 2025, 11:19 | 5.3 | 5.3 °C |
| 22 Jan 2025, 09:56 | 6 | 6 °C |
| 10 Dec 2024, 10:57 | 8.3 | 8.3 °C |
| 26 Nov 2024, 13:02 | 9 | 9 °C |
| 31 Oct 2024, 11:24 | 13.4 | 13.4 °C |
| 17 Sep 2024, 15:03 | 14 | 14 °C |
| 23 Aug 2024, 13:49 | 17.2 | 17.2 °C |
| 19 Jul 2024, 13:18 | 18.4 | 18.4 °C |
pH
code 0061
7.65
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 7.65 | 7.65 |
| 14 May 2026, 13:21 | 7.81 | 7.81 |
| 13 Apr 2026, 14:12 | 8.1 | 8.1 |
| 18 Mar 2026, 10:28 | 8.06 | 8.06 |
| 3 Mar 2026, 12:55 | 8.06 | 8.06 |
| 26 Feb 2026, 13:43 | 8.02 | 8.02 |
| 3 Feb 2026, 11:16 | 8.03 | 8.03 |
| 30 Jan 2026, 10:35 | 7.8 | 7.8 |
| 16 Dec 2025, 13:17 | 8.12 | 8.12 |
| 1 Dec 2025, 14:19 | 7.76 | 7.76 |
| 19 Nov 2025, 13:35 | 7.86 | 7.86 |
| 5 Nov 2025, 14:09 | 7.7 | 7.7 |
| 3 Oct 2025, 13:38 | 7.66 | 7.66 |
| 1 Sep 2025, 12:04 | 7.64 | 7.64 |
| 12 Aug 2025, 12:43 | 7.72 | 7.72 |
| 4 Jul 2025, 11:53 | 7.77 | 7.77 |
| 6 Jun 2025, 11:23 | 7.74 | 7.74 |
| 7 May 2025, 12:16 | 7.98 | 7.98 |
| 3 Apr 2025, 12:28 | 8.3 | 8.3 |
| 5 Mar 2025, 11:40 | 8.2 | 8.2 |
| 7 Feb 2025, 11:19 | 8.22 | 8.22 |
| 22 Jan 2025, 09:56 | 8.23 | 8.23 |
| 10 Dec 2024, 10:57 | 7.76 | 7.76 |
| 26 Nov 2024, 13:02 | 7.75 | 7.75 |
| 31 Oct 2024, 11:24 | 7.89 | 7.89 |
| 17 Sep 2024, 15:03 | 7.77 | 7.77 |
| 23 Aug 2024, 13:49 | 7.67 | 7.67 |
| 19 Jul 2024, 13:18 | 7.85 | 7.85 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.3 mg/l
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 0.3 | 0.3 mg/l |
| 14 May 2026, 13:21 | 0.39 | 0.39 mg/l |
| 13 Apr 2026, 14:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2026, 10:28 | 0.061 | 0.061 mg/l |
| 3 Mar 2026, 12:55 | 0.068 | 0.068 mg/l |
| 26 Feb 2026, 13:43 | 1.4 | 1.4 mg/l |
| 3 Feb 2026, 11:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jan 2026, 10:35 | 0.083 | 0.083 mg/l |
| 16 Dec 2025, 13:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Dec 2025, 14:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Nov 2025, 13:35 | 0.068 | 0.068 mg/l |
| 5 Nov 2025, 14:09 | 0.084 | 0.084 mg/l |
| 3 Oct 2025, 13:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Sep 2025, 12:04 | 0.046 | 0.046 mg/l |
| 12 Aug 2025, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jul 2025, 11:53 | 0.047 | 0.047 mg/l |
| 6 Jun 2025, 11:23 | 0.11 | 0.11 mg/l |
| 7 May 2025, 12:16 | 0.51 | 0.51 mg/l |
| 3 Apr 2025, 12:28 | 0.045 | 0.045 mg/l |
| 5 Mar 2025, 11:40 | 0.032 | 0.032 mg/l |
| 7 Feb 2025, 11:19 | 0.044 | 0.044 mg/l |
| 22 Jan 2025, 09:56 | 0.033 | 0.033 mg/l |
| 10 Dec 2024, 10:57 | 0.032 | 0.032 mg/l |
| 26 Nov 2024, 13:02 | 0.051 | 0.051 mg/l |
| 31 Oct 2024, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Sep 2024, 15:03 | 0.039 | 0.039 mg/l |
| 23 Aug 2024, 13:49 | 0.074 | 0.074 mg/l |
| 19 Jul 2024, 13:18 | 0.045 | 0.045 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.944 mg/l
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 0.944 | 0.944 mg/l |
| 14 May 2026, 13:21 | 0.82 | 0.82 mg/l |
| 13 Apr 2026, 14:12 | 0.989 | 0.989 mg/l |
| 18 Mar 2026, 10:28 | 2.08 | 2.08 mg/l |
| 3 Mar 2026, 12:55 | 2.59 | 2.59 mg/l |
| 26 Feb 2026, 13:43 | 2.87 | 2.87 mg/l |
| 3 Feb 2026, 11:16 | 2.5 | 2.5 mg/l |
| 30 Jan 2026, 10:35 | 1.39 | 1.39 mg/l |
| 16 Dec 2025, 13:17 | 2.09 | 2.09 mg/l |
| 1 Dec 2025, 14:19 | 1.29 | 1.29 mg/l |
| 19 Nov 2025, 13:35 | 0.989 | 0.989 mg/l |
| 5 Nov 2025, 14:09 | 1.18 | 1.18 mg/l |
| 3 Oct 2025, 13:38 | 0.455 | 0.455 mg/l |
| 1 Sep 2025, 12:04 | 0.689 | 0.689 mg/l |
| 12 Aug 2025, 12:43 | 0.483 | 0.483 mg/l |
| 4 Jul 2025, 11:53 | 0.562 | 0.562 mg/l |
| 6 Jun 2025, 11:23 | 0.936 | 0.936 mg/l |
| 7 May 2025, 12:16 | 1.09 | 1.09 mg/l |
| 3 Apr 2025, 12:28 | 1.09 | 1.09 mg/l |
| 5 Mar 2025, 11:40 | 1.49 | 1.49 mg/l |
| 7 Feb 2025, 11:19 | 1.79 | 1.79 mg/l |
| 22 Jan 2025, 09:56 | 2.69 | 2.69 mg/l |
| 10 Dec 2024, 10:57 | 1.39 | 1.39 mg/l |
| 26 Nov 2024, 13:02 | 1.48 | 1.48 mg/l |
| 31 Oct 2024, 11:24 | 0.919 | 0.919 mg/l |
| 17 Sep 2024, 15:03 | 1.27 | 1.27 mg/l |
| 23 Aug 2024, 13:49 | 0.606 | 0.606 mg/l |
| 19 Jul 2024, 13:18 | 0.716 | 0.716 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.091 mg/l
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 0.091 | 0.091 mg/l |
| 14 May 2026, 13:21 | 0.19 | 0.19 mg/l |
| 13 Apr 2026, 14:12 | 0.044 | 0.044 mg/l |
| 18 Mar 2026, 10:28 | 0.065 | 0.065 mg/l |
| 3 Mar 2026, 12:55 | 0.067 | 0.067 mg/l |
| 26 Feb 2026, 13:43 | 0.16 | 0.16 mg/l |
| 3 Feb 2026, 11:16 | 0.062 | 0.062 mg/l |
| 30 Jan 2026, 10:35 | 0.11 | 0.11 mg/l |
| 16 Dec 2025, 13:17 | 0.061 | 0.061 mg/l |
| 1 Dec 2025, 14:19 | 0.11 | 0.11 mg/l |
| 19 Nov 2025, 13:35 | 0.11 | 0.11 mg/l |
| 5 Nov 2025, 14:09 | 0.12 | 0.12 mg/l |
| 3 Oct 2025, 13:38 | 0.1 | 0.1 mg/l |
| 1 Sep 2025, 12:04 | 0.13 | 0.13 mg/l |
| 12 Aug 2025, 12:43 | 0.17 | 0.17 mg/l |
| 4 Jul 2025, 11:53 | 0.21 | 0.21 mg/l |
| 6 Jun 2025, 11:23 | 0.17 | 0.17 mg/l |
| 7 May 2025, 12:16 | 0.13 | 0.13 mg/l |
| 3 Apr 2025, 12:28 | 0.04 | 0.04 mg/l |
| 5 Mar 2025, 11:40 | 0.048 | 0.048 mg/l |
| 7 Feb 2025, 11:19 | 0.054 | 0.054 mg/l |
| 22 Jan 2025, 09:56 | 0.049 | 0.049 mg/l |
| 10 Dec 2024, 10:57 | 0.077 | 0.077 mg/l |
| 26 Nov 2024, 13:02 | 0.13 | 0.13 mg/l |
| 31 Oct 2024, 11:24 | 0.1 | 0.1 mg/l |
| 17 Sep 2024, 15:03 | 0.11 | 0.11 mg/l |
| 23 Aug 2024, 13:49 | 0.15 | 0.15 mg/l |
| 19 Jul 2024, 13:18 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
423 µS/cm
Sampled 20 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 13:47 | 423 | 423 µS/cm |
| 14 May 2026, 13:21 | 710 | 710 µS/cm |
| 13 Apr 2026, 14:12 | 566 | 566 µS/cm |
| 18 Mar 2026, 10:28 | 559 | 559 µS/cm |
| 3 Mar 2026, 12:55 | 533 | 533 µS/cm |
| 26 Feb 2026, 13:43 | 565 | 565 µS/cm |
| 3 Feb 2026, 11:16 | 486 | 486 µS/cm |
| 30 Jan 2026, 10:35 | 338 | 338 µS/cm |
| 16 Dec 2025, 13:17 | 559 | 559 µS/cm |
| 1 Dec 2025, 14:19 | 530 | 530 µS/cm |
| 19 Nov 2025, 13:35 | 305 | 305 µS/cm |
| 5 Nov 2025, 14:09 | 510 | 510 µS/cm |
| 3 Oct 2025, 13:38 | 662 | 662 µS/cm |
| 1 Sep 2025, 12:04 | 411 | 411 µS/cm |
| 12 Aug 2025, 12:43 | 588 | 588 µS/cm |
| 4 Jul 2025, 11:53 | 724 | 724 µS/cm |
| 6 Jun 2025, 11:23 | 673 | 673 µS/cm |
| 7 May 2025, 12:16 | 614 | 614 µS/cm |
| 3 Apr 2025, 12:28 | 594 | 594 µS/cm |
| 5 Mar 2025, 11:40 | 595 | 595 µS/cm |
| 7 Feb 2025, 11:19 | 588 | 588 µS/cm |
| 22 Jan 2025, 09:56 | 597 | 597 µS/cm |
| 10 Dec 2024, 10:57 | 398 | 398 µS/cm |
| 26 Nov 2024, 13:02 | 396 | 396 µS/cm |
| 31 Oct 2024, 11:24 | 548 | 548 µS/cm |
| 17 Sep 2024, 15:03 | 644 | 644 µS/cm |
| 23 Aug 2024, 13:49 | 558 | 558 µS/cm |
| 19 Jul 2024, 13:18 | 538 | 538 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 | 28 | Jul 2024 – May 2026 | 82.8% 20 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Jul 2024 – May 2026 | 8.44 mg/l 20 May 2026 |
| Temperature of Water 0076 | River water | 28 | Jul 2024 – May 2026 | 14.4 °C 20 May 2026 |
| pH 0061 | River water | 28 | Jul 2024 – May 2026 | 7.65 20 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Jul 2024 – May 2026 | 0.3 mg/l 20 May 2026 |
| Nitrate as N 0117 | River water | 28 | Jul 2024 – May 2026 | 0.944 mg/l 20 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Jul 2024 – May 2026 | 0.091 mg/l 20 May 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Jul 2024 – May 2026 | 423 µS/cm 20 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jul 2024 – May 2026 | 130 mg/l 20 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Jul 2024 – May 2026 | 0.00342 mg/l 20 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Jul 2024 – May 2026 | 2.9 mg/l 20 May 2026 |
| Nitrite as N 0118 | River water | 28 | Jul 2024 – May 2026 | 0.056 mg/l 20 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Jul 2024 – May 2026 | 1 mg/l 20 May 2026 |
| No flow /No sample 7668 | River water | 2 | Jun 2024 – Jan 2026 | No flow/discharge at sampling point 5 Jan 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.