East Lyn River at Westerwood Island
EA name: EAST LYN RIVER AT WESTERWOOD ISLAND (also listed as “RSN1527 WESTERWOOD ISLAND - EAST LYN RIVER (LYN)”)
Environment Agency sampling point SW-RSN1527 · 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
- 17 Jul 2026, 12:062 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 27 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 273140, 149078As published, to the nearest 1 m. Open in a map
- River, by its own name
- East Lyn
- River, by the map
- East Lyn RiverPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- Brendon On the East Lyn River · 7.3 km along the river
- Why it was sampled
- Monitoring (national agency policy) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.3%
Sampled 17 Jul 2026, 2 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 101.3 | 101.3% |
| 25 Jun 2026, 13:47 | 89.8 | 89.8% |
| 14 May 2026, 14:03 | 93.5 | 93.5% |
| 23 Apr 2026, 13:18 | 104.2 | 104.2% |
| 10 Mar 2026, 09:40 | 102.9 | 102.9% |
| 18 Feb 2026, 13:20 | 102.2 | 102.2% |
| 19 Jan 2026, 10:22 | 100.2 | 100.2% |
| 11 Dec 2025, 11:11 | 101.5 | 101.5% |
| 27 Nov 2025, 11:51 | 100.4 | 100.4% |
| 29 Oct 2025, 11:20 | 101.2 | 101.2% |
| 4 Sep 2025, 14:45 | 100.2 | 100.2% |
| 26 Aug 2025, 14:40 | 104.4 | 104.4% |
| 30 Jul 2025, 09:05 | 102.2 | 102.2% |
| 20 Jun 2025, 12:28 | 101.1 | 101.1% |
| 22 May 2025, 12:32 | 96.2 | 96.2% |
| 28 Apr 2025, 12:08 | 101.8 | 101.8% |
| 20 Mar 2025, 13:17 | 98.9 | 98.9% |
| 21 Feb 2025, 12:27 | 102.3 | 102.3% |
| 30 Jan 2025, 11:50 | 102.1 | 102.1% |
| 26 Nov 2024, 12:25 | 102.1 | 102.1% |
| 28 Oct 2024, 14:48 | 102.8 | 102.8% |
| 9 Sep 2024, 12:45 | 100.3 | 100.3% |
| 30 Aug 2024, 10:22 | 100 | 100% |
| 18 Jul 2024, 13:48 | 96.3 | 96.3% |
| 17 Jun 2024, 10:50 | 101.3 | 101.3% |
| 10 May 2024, 12:27 | 101.9 | 101.9% |
| 9 Apr 2024, 13:09 | 103.9 | 103.9% |
| 22 Mar 2024, 12:28 | 100.4 | 100.4% |
| 6 Feb 2024, 11:55 | 99.3 | 99.3% |
| 8 Jan 2024, 15:39 | 102.2 | 102.2% |
| 15 Dec 2023, 13:15 | 101.3 | 101.3% |
| 10 Nov 2023, 15:00 | 102.4 | 102.4% |
| 27 Oct 2023, 11:54 | 98.3 | 98.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.7 mg/l
Sampled 17 Jul 2026, 2 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 9.7 | 9.7 mg/l |
| 25 Jun 2026, 13:47 | 8.43 | 8.43 mg/l |
| 14 May 2026, 14:03 | 10.4 | 10.4 mg/l |
| 23 Apr 2026, 13:18 | 11.7 | 11.7 mg/l |
| 10 Mar 2026, 09:40 | 12 | 12 mg/l |
| 18 Feb 2026, 13:20 | 12.4 | 12.4 mg/l |
| 19 Jan 2026, 10:22 | 12.3 | 12.3 mg/l |
| 11 Dec 2025, 11:11 | 11.6 | 11.6 mg/l |
| 27 Nov 2025, 11:51 | 11.3 | 11.3 mg/l |
| 29 Oct 2025, 11:20 | 11.3 | 11.3 mg/l |
| 4 Sep 2025, 14:45 | 10.2 | 10.2 mg/l |
| 26 Aug 2025, 14:40 | 10.3 | 10.3 mg/l |
| 30 Jul 2025, 09:05 | 10.1 | 10.1 mg/l |
| 20 Jun 2025, 12:28 | 9.79 | 9.79 mg/l |
| 22 May 2025, 12:32 | 10.2 | 10.2 mg/l |
| 28 Apr 2025, 12:08 | 11.1 | 11.1 mg/l |
| 20 Mar 2025, 13:17 | 11.5 | 11.5 mg/l |
| 21 Feb 2025, 12:27 | 11.5 | 11.5 mg/l |
| 30 Jan 2025, 11:50 | 12.4 | 12.4 mg/l |
| 26 Nov 2024, 12:25 | 11.8 | 11.8 mg/l |
| 28 Oct 2024, 14:48 | 11 | 11 mg/l |
| 9 Sep 2024, 12:45 | 10.6 | 10.6 mg/l |
| 30 Aug 2024, 10:22 | 10.6 | 10.6 mg/l |
| 18 Jul 2024, 13:48 | 9.66 | 9.66 mg/l |
| 17 Jun 2024, 10:50 | 10.8 | 10.8 mg/l |
| 10 May 2024, 12:27 | 10.8 | 10.8 mg/l |
| 9 Apr 2024, 13:09 | 12.1 | 12.1 mg/l |
| 22 Mar 2024, 12:28 | 11.4 | 11.4 mg/l |
| 6 Feb 2024, 11:55 | 11.3 | 11.3 mg/l |
| 8 Jan 2024, 15:39 | 12.5 | 12.5 mg/l |
| 15 Dec 2023, 13:15 | 14.8 | 14.8 mg/l |
| 10 Nov 2023, 15:00 | 11.5 | 11.5 mg/l |
| 27 Oct 2023, 11:54 | 10.9 | 10.9 mg/l |
Water temperature
code 0076 · °C
17.3 °C
Sampled 17 Jul 2026, 2 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 17.3 | 17.3 °C |
| 25 Jun 2026, 13:47 | 18.3 | 18.3 °C |
| 14 May 2026, 14:03 | 10.4 | 10.4 °C |
| 23 Apr 2026, 13:18 | 10.2 | 10.2 °C |
| 10 Mar 2026, 09:40 | 8.6 | 8.6 °C |
| 18 Feb 2026, 13:20 | 7 | 7 °C |
| 19 Jan 2026, 10:22 | 6.5 | 6.5 °C |
| 11 Dec 2025, 11:11 | 9.5 | 9.5 °C |
| 27 Nov 2025, 11:51 | 10.1 | 10.1 °C |
| 29 Oct 2025, 11:20 | 10.5 | 10.5 °C |
| 4 Sep 2025, 14:45 | 14.3 | 14.3 °C |
| 26 Aug 2025, 14:40 | 16.1 | 16.1 °C |
| 30 Jul 2025, 09:05 | 15.9 | 15.9 °C |
| 20 Jun 2025, 12:28 | 16.8 | 16.8 °C |
| 22 May 2025, 12:32 | 12.6 | 12.6 °C |
| 28 Apr 2025, 12:08 | 11.2 | 11.2 °C |
| 20 Mar 2025, 13:17 | 8.8 | 8.8 °C |
| 21 Feb 2025, 12:27 | 10.2 | 10.2 °C |
| 30 Jan 2025, 11:50 | 7 | 7 °C |
| 26 Nov 2024, 12:25 | 8.9 | 8.9 °C |
| 28 Oct 2024, 14:48 | 12.3 | 12.3 °C |
| 9 Sep 2024, 12:45 | 12.6 | 12.6 °C |
| 30 Aug 2024, 10:22 | 12.5 | 12.5 °C |
| 18 Jul 2024, 13:48 | 15.1 | 15.1 °C |
| 17 Jun 2024, 10:50 | 12.3 | 12.3 °C |
| 10 May 2024, 12:27 | 12.5 | 12.5 °C |
| 9 Apr 2024, 13:09 | 8.5 | 8.5 °C |
| 22 Mar 2024, 12:28 | 9.7 | 9.7 °C |
| 6 Feb 2024, 11:55 | 9.7 | 9.7 °C |
| 8 Jan 2024, 15:39 | 6.6 | 6.6 °C |
| 15 Dec 2023, 13:15 | 0 | 0 °C |
| 10 Nov 2023, 15:00 | 10.1 | 10.1 °C |
| 27 Oct 2023, 11:54 | 10.7 | 10.7 °C |
pH
code 0061
8.3
Sampled 17 Jul 2026, 2 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 8.3 | 8.3 |
| 25 Jun 2026, 13:47 | 7.41 | 7.41 |
| 14 May 2026, 14:03 | 7.8 | 7.8 |
| 23 Apr 2026, 13:18 | 8.14 | 8.14 |
| 10 Mar 2026, 09:40 | 7.75 | 7.75 |
| 18 Feb 2026, 13:20 | 7.68 | 7.68 |
| 19 Jan 2026, 10:22 | 7.71 | 7.71 |
| 11 Dec 2025, 11:11 | 7.4 | 7.4 |
| 27 Nov 2025, 11:51 | 7.5 | 7.5 |
| 29 Oct 2025, 11:20 | 7.5 | 7.5 |
| 4 Sep 2025, 14:45 | 7.7 | 7.7 |
| 26 Aug 2025, 14:40 | 8.1 | 8.1 |
| 30 Jul 2025, 09:05 | 7.9 | 7.9 |
| 20 Jun 2025, 12:28 | 7.9 | 7.9 |
| 22 May 2025, 12:32 | 7.8 | 7.8 |
| 28 Apr 2025, 12:08 | 7.9 | 7.9 |
| 20 Mar 2025, 13:17 | 7.8 | 7.8 |
| 21 Feb 2025, 12:27 | 7.4 | 7.4 |
| 30 Jan 2025, 11:50 | 7.6 | 7.6 |
| 26 Nov 2024, 12:25 | 7.5 | 7.5 |
| 28 Oct 2024, 14:48 | 8.1 | 8.1 |
| 9 Sep 2024, 12:45 | 7.6 | 7.6 |
| 30 Aug 2024, 10:22 | 7.9 | 7.9 |
| 18 Jul 2024, 13:48 | 7.9 | 7.9 |
| 17 Jun 2024, 10:50 | 7.8 | 7.8 |
| 10 May 2024, 12:27 | 7.7 | 7.7 |
| 9 Apr 2024, 13:09 | 7.1 | 7.1 |
| 22 Mar 2024, 12:28 | 7.6 | 7.6 |
| 6 Feb 2024, 11:55 | 7.53 | 7.53 |
| 8 Jan 2024, 15:39 | 7.72 | 7.72 |
| 15 Dec 2023, 13:15 | 7.78 | 7.78 |
| 10 Nov 2023, 15:00 | 7.26 | 7.26 |
| 27 Oct 2023, 11:54 | 7.5 | 7.5 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.0033 mg/l
Sampled 17 Jul 2026, 2 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 0.0033 | 0.0033 mg/l |
| 25 Jun 2026, 13:47 | 0.033 | 0.033 mg/l |
| 14 May 2026, 14:03 | 0.0074 | 0.0074 mg/l |
| 23 Apr 2026, 13:18 | 0.0042 | 0.0042 mg/l |
| 10 Mar 2026, 09:40 | 0.0047 | 0.0047 mg/l |
| 18 Feb 2026, 13:20 | 0.0021 | 0.0021 mg/l |
| 19 Jan 2026, 10:22 | 0.0021 | 0.0021 mg/l |
| 11 Dec 2025, 11:11 | <0.002 | below 0.002 mg/l (not detected above this) |
| 27 Nov 2025, 11:51 | <0.002 | below 0.002 mg/l (not detected above this) |
| 29 Oct 2025, 11:20 | <0.002 | below 0.002 mg/l (not detected above this) |
| 4 Sep 2025, 14:45 | 0.0037 | 0.0037 mg/l |
| 30 Jul 2025, 09:05 | <0.002 | below 0.002 mg/l (not detected above this) |
| 20 Jun 2025, 12:28 | 0.003 | 0.003 mg/l |
| 22 May 2025, 12:32 | 0.0058 | 0.0058 mg/l |
| 28 Apr 2025, 12:08 | 0.0035 | 0.0035 mg/l |
| 20 Mar 2025, 13:17 | 0.0032 | 0.0032 mg/l |
| 21 Feb 2025, 12:27 | 0.003 | 0.003 mg/l |
| 30 Jan 2025, 11:50 | <0.002 | below 0.002 mg/l (not detected above this) |
| 26 Nov 2024, 12:25 | <0.002 | below 0.002 mg/l (not detected above this) |
| 28 Oct 2024, 14:48 | <0.002 | below 0.002 mg/l (not detected above this) |
| 9 Sep 2024, 12:45 | <0.002 | below 0.002 mg/l (not detected above this) |
| 30 Aug 2024, 10:22 | <0.002 | below 0.002 mg/l (not detected above this) |
| 18 Jul 2024, 13:48 | 0.015 | 0.015 mg/l |
| 17 Jun 2024, 10:50 | 0.015 | 0.015 mg/l |
| 10 May 2024, 12:27 | 0.0053 | 0.0053 mg/l |
| 9 Apr 2024, 13:09 | 0.011 | 0.011 mg/l |
| 22 Mar 2024, 12:28 | <0.002 | below 0.002 mg/l (not detected above this) |
| 6 Feb 2024, 11:55 | 0.0052 | 0.0052 mg/l |
| 8 Jan 2024, 15:39 | <0.002 | below 0.002 mg/l (not detected above this) |
| 15 Dec 2023, 13:15 | 0.0026 | 0.0026 mg/l |
| 10 Nov 2023, 15:00 | 0.0063 | 0.0063 mg/l |
| 27 Oct 2023, 11:54 | 0.0036 | 0.0036 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.519 mg/l
Sampled 17 Jul 2026, 2 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 0.519 | 0.519 mg/l |
| 25 Jun 2026, 13:47 | 0.589 | 0.589 mg/l |
| 14 May 2026, 14:03 | 0.549 | 0.549 mg/l |
| 23 Apr 2026, 13:18 | 0.319 | 0.319 mg/l |
| 10 Mar 2026, 09:40 | 0.619 | 0.619 mg/l |
| 18 Feb 2026, 13:20 | 0.629 | 0.629 mg/l |
| 19 Jan 2026, 10:22 | 0.669 | 0.669 mg/l |
| 11 Dec 2025, 11:11 | 0.759 | 0.759 mg/l |
| 27 Nov 2025, 11:51 | 0.559 | 0.559 mg/l |
| 29 Oct 2025, 11:20 | 0.429 | 0.429 mg/l |
| 4 Sep 2025, 14:45 | 0.339 | 0.339 mg/l |
| 30 Jul 2025, 09:05 | 0.479 | 0.479 mg/l |
| 20 Jun 2025, 12:28 | 0.499 | 0.499 mg/l |
| 22 May 2025, 12:32 | 0.496 | 0.496 mg/l |
| 28 Apr 2025, 12:08 | 0.399 | 0.399 mg/l |
| 20 Mar 2025, 13:17 | 0.559 | 0.559 mg/l |
| 21 Feb 2025, 12:27 | 0.509 | 0.509 mg/l |
| 30 Jan 2025, 11:50 | 0.709 | 0.709 mg/l |
| 26 Nov 2024, 12:25 | 0.699 | 0.699 mg/l |
| 28 Oct 2024, 14:48 | 0.559 | 0.559 mg/l |
| 9 Sep 2024, 12:45 | 0.349 | 0.349 mg/l |
| 30 Aug 2024, 10:22 | 0.459 | 0.459 mg/l |
| 18 Jul 2024, 13:48 | 0.499 | 0.499 mg/l |
| 17 Jun 2024, 10:50 | 0.499 | 0.499 mg/l |
| 10 May 2024, 12:27 | 0.479 | 0.479 mg/l |
| 9 Apr 2024, 13:09 | 0.289 | 0.289 mg/l |
| 22 Mar 2024, 12:28 | 0.519 | 0.519 mg/l |
| 6 Feb 2024, 11:55 | 0.549 | 0.549 mg/l |
| 8 Jan 2024, 15:39 | 0.739 | 0.739 mg/l |
| 15 Dec 2023, 13:15 | 0.669 | 0.669 mg/l |
| 10 Nov 2023, 15:00 | 0.469 | 0.469 mg/l |
| 27 Oct 2023, 11:54 | 0.599 | 0.599 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.016 mg/l
Sampled 17 Jul 2026, 2 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 0.016 | 0.016 mg/l |
| 25 Jun 2026, 13:47 | 0.014 | 0.014 mg/l |
| 14 May 2026, 14:03 | 0.0069 | 0.0069 mg/l |
| 23 Apr 2026, 13:18 | 0.0027 | 0.0027 mg/l |
| 10 Mar 2026, 09:40 | 0.0078 | 0.0078 mg/l |
| 18 Feb 2026, 13:20 | 0.0087 | 0.0087 mg/l |
| 19 Jan 2026, 10:22 | 0.0093 | 0.0093 mg/l |
| 11 Dec 2025, 11:11 | 0.011 | 0.011 mg/l |
| 27 Nov 2025, 11:51 | 0.0091 | 0.0091 mg/l |
| 29 Oct 2025, 11:20 | 0.0079 | 0.0079 mg/l |
| 4 Sep 2025, 14:45 | 0.0092 | 0.0092 mg/l |
| 30 Jul 2025, 09:05 | 0.0089 | 0.0089 mg/l |
| 20 Jun 2025, 12:28 | 0.014 | 0.014 mg/l |
| 22 May 2025, 12:32 | 0.0086 | 0.0086 mg/l |
| 28 Apr 2025, 12:08 | 0.0036 | 0.0036 mg/l |
| 20 Mar 2025, 13:17 | 0.0057 | 0.0057 mg/l |
| 21 Feb 2025, 12:27 | 0.0097 | 0.0097 mg/l |
| 30 Jan 2025, 11:50 | 0.011 | 0.011 mg/l |
| 26 Nov 2024, 12:25 | 0.012 | 0.012 mg/l |
| 28 Oct 2024, 14:48 | 0.0096 | 0.0096 mg/l |
| 9 Sep 2024, 12:45 | 0.0081 | 0.0081 mg/l |
| 30 Aug 2024, 10:22 | 0.011 | 0.011 mg/l |
| 18 Jul 2024, 13:48 | 0.014 | 0.014 mg/l |
| 17 Jun 2024, 10:50 | 0.066 | 0.066 mg/l |
| 10 May 2024, 12:27 | 0.005 | 0.005 mg/l |
| 9 Apr 2024, 13:09 | 0.0061 | 0.0061 mg/l |
| 22 Mar 2024, 12:28 | 0.0087 | 0.0087 mg/l |
| 6 Feb 2024, 11:55 | 0.008 | 0.008 mg/l |
| 8 Jan 2024, 15:39 | 0.011 | 0.011 mg/l |
| 15 Dec 2023, 13:15 | 0.011 | 0.011 mg/l |
| 10 Nov 2023, 15:00 | 0.0086 | 0.0086 mg/l |
| 27 Oct 2023, 11:54 | 0.0093 | 0.0093 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
130 µS/cm
Sampled 17 Jul 2026, 2 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 12:06 | 130 | 130 µS/cm |
| 25 Jun 2026, 13:47 | 127 | 127 µS/cm |
| 14 May 2026, 14:03 | 141 | 141 µS/cm |
| 23 Apr 2026, 13:18 | 110 | 110 µS/cm |
| 10 Mar 2026, 09:40 | 102 | 102 µS/cm |
| 18 Feb 2026, 13:20 | 90 | 90 µS/cm |
| 19 Jan 2026, 10:22 | 99 | 99 µS/cm |
| 11 Dec 2025, 11:11 | 89 | 89 µS/cm |
| 27 Nov 2025, 11:51 | 86 | 86 µS/cm |
| 29 Oct 2025, 11:20 | 84 | 84 µS/cm |
| 4 Sep 2025, 14:45 | 107 | 107 µS/cm |
| 26 Aug 2025, 14:40 | 132 | 132 µS/cm |
| 30 Jul 2025, 09:05 | 131 | 131 µS/cm |
| 20 Jun 2025, 12:28 | 101 | 101 µS/cm |
| 22 May 2025, 12:32 | 124 | 124 µS/cm |
| 28 Apr 2025, 12:08 | 106 | 106 µS/cm |
| 20 Mar 2025, 13:17 | 116 | 116 µS/cm |
| 21 Feb 2025, 12:27 | 82 | 82 µS/cm |
| 30 Jan 2025, 11:50 | 88 | 88 µS/cm |
| 26 Nov 2024, 12:25 | 82 | 82 µS/cm |
| 28 Oct 2024, 14:48 | 99 | 99 µS/cm |
| 9 Sep 2024, 12:45 | 80 | 80 µS/cm |
| 30 Aug 2024, 10:22 | 123 | 123 µS/cm |
| 18 Jul 2024, 13:48 | 112 | 112 µS/cm |
| 17 Jun 2024, 10:50 | 106 | 106 µS/cm |
| 10 May 2024, 12:27 | 107 | 107 µS/cm |
| 9 Apr 2024, 13:09 | 56 | 56 µS/cm |
| 22 Mar 2024, 12:28 | 86 | 86 µS/cm |
| 6 Feb 2024, 11:55 | 83 | 83 µS/cm |
| 8 Jan 2024, 15:39 | 92 | 92 µS/cm |
| 15 Dec 2023, 13:15 | 94 | 94 µS/cm |
| 10 Nov 2023, 15:00 | 75 | 75 µS/cm |
| 27 Oct 2023, 11:54 | 85 | 85 µS/cm |
Everything measured here
183 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 183 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Jul 2026 | 101.3% 17 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Jul 2026 | 9.7 mg/l 17 Jul 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Jul 2026 | 17.3 °C 17 Jul 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Jul 2026 | 8.3 17 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Jul 2026 | 0.0033 mg/l 17 Jul 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Jul 2026 | 0.519 mg/l 17 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Jul 2026 | 0.016 mg/l 17 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Jul 2026 | 130 µS/cm 17 Jul 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 3 | May 2026 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 4 | Feb 2026 – Jul 2026 | below 0.002 µg/l 17 Jul 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 2,3,6-TBA :- {2,3,6-Trichlorobenzoic acid} 7726 | River water | 26 | Oct 2023 – Dec 2025 | below 0.02 µg/l 11 Dec 2025 |
| 2,4,5-T :- {2,4,5-Trichlorophenoxyacetic acid} 3546 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| 2,4-D :- {2,4-Dichlorophenoxyacetic acid} 3545 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| 2,4-DB :- {4-(2,4-dichlorophenoxy)butyric acid} 3791 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 2-Phenoxypropionic acid :- {PPA} 6673 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 4 | Feb 2026 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 5 | Oct 2024 – Jul 2026 | below 0.004 µg/l 17 Jul 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 4-Chloro-2-methylphenol :- {p-Chloro-o-cresol} 3341 | River water | 25 | Oct 2023 – Dec 2025 | below 0.05 µg/l 11 Dec 2025 |
| 4-Chlorophenoxyacetic acid 3547 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| 4-Nonylphenol Branched 9190 | River water | 22 | Feb 2024 – Dec 2025 | below 0.04 µg/l 11 Dec 2025 |
| 4-Phenoxybutyric acid :- {PBA} 6672 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| 4-tert-Octylphenol :- {p-tert-Octylphenol} 9267 | River water | 22 | Feb 2024 – Dec 2025 | below 0.01 µg/l 11 Dec 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 4 | Feb 2026 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 4 | Feb 2026 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 4 | Feb 2026 – Jul 2026 | below 0.004 µg/l 17 Jul 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 4 | Feb 2026 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 4 | Feb 2026 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 4 | Feb 2026 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 4 | Feb 2026 – Jul 2026 | below 0.004 µg/l 17 Jul 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 4 | Feb 2026 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 4 | Feb 2026 – Jul 2026 | below 0.004 µg/l 17 Jul 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 4 | Feb 2026 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Aldicarb 9344 | River water | 32 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Aldicarb sulfoxide 8806 | River water | 33 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Aldoxycarb :- {Aldicarb Sulfone} 8807 | River water | 33 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Jul 2026 | 42 mg/l 17 Jul 2026 |
| Aluminium, Dissolved 6037 | River water | 33 | Oct 2023 – Jul 2026 | below 20 µg/l 17 Jul 2026 |
| Aminomethylphosphonic acid 7125 | River water | 26 | Apr 2024 – Jul 2026 | below 0.1 µg/l 17 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Jul 2026 | 0.0001 mg/l 17 Jul 2026 |
| Asulam 3004 | River water | 33 | Oct 2023 – Jul 2026 | below 0.02 µg/l 17 Jul 2026 |
| Azoxystrobin 5050 | River water | 33 | Oct 2023 – Jul 2026 | below 0.02 µg/l 17 Jul 2026 |
| Barium, Dissolved 9446 | River water | 33 | Oct 2023 – Jul 2026 | below 10 µg/l 17 Jul 2026 |
| Benazolin 3792 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Bentazone 4065 | River water | 26 | Oct 2023 – Dec 2025 | below 0.003 µg/l 11 Dec 2025 |
| Benzo(a)Pyrene 6399 | River water | 31 | Oct 2023 – Jul 2026 | 0.0001 µg/l 17 Jul 2026 |
| Benzo(b)Fluoranthene 0731 | River water | 30 | Nov 2023 – Jul 2026 | 0.00012 µg/l 17 Jul 2026 |
| Benzo(g,h,i)Perylene 0714 | River water | 31 | Oct 2023 – Jul 2026 | 0.0001 µg/l 17 Jul 2026 |
| Benzo(k)Fluoranthene 0733 | River water | 31 | Oct 2023 – Jul 2026 | 0.00005 µg/l 17 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | below 1 mg/l 14 May 2026 |
| Boron, Dissolved 9447 | River water | 33 | Oct 2023 – Jul 2026 | below 100 µg/l 17 Jul 2026 |
| Bromoxynil 6449 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Cadmium, Dissolved 0106 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 33 | Oct 2023 – Jul 2026 | 11 mg/l 17 Jul 2026 |
| Carbaryl 9343 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Carbendazim 3475 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Carbetamide 9073 | River water | 32 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Carbofuran 3086 | River water | 32 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 32 | Oct 2023 – Jul 2026 | 0.89 mg/l 17 Jul 2026 |
| Chloridazon 6760 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Chloride 0172 | River water | 33 | Oct 2023 – Jul 2026 | 11 mg/l 17 Jul 2026 |
| Chlorotoluron 9348 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Chloroxuron 3399 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Chromium, Dissolved 3409 | River water | 33 | Oct 2023 – Jul 2026 | below 0.5 µg/l 17 Jul 2026 |
| cis-Permethrin 9341 | River water | 25 | Nov 2023 – Jul 2026 | below 0.0001 µg/l 17 Jul 2026 |
| Clopyralid 6620 | River water | 25 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Copper : BLM Bioavailable 4821 | River water | 32 | Oct 2023 – Jul 2026 | 0.14 µg/l 17 Jul 2026 |
| Copper, Dissolved 6450 | River water | 33 | Oct 2023 – Jul 2026 | 0.26 µg/l 17 Jul 2026 |
| Cypermethrin 0073 | River water | 29 | Nov 2023 – Jul 2026 | below 0.00001 µg/l 17 Jul 2026 |
| Cypermethrin Identification 5446 | River water | 29 | Nov 2023 – Jul 2026 | 1 text result 17 Jul 2026 |
| Di(2-ethylhexyl) phthalate :- {DEHP} 6724 | River water | 24 | Apr 2024 – Apr 2026 | below 0.2 µg/l 23 Apr 2026 |
| Dicamba 3550 | River water | 26 | Oct 2023 – Dec 2025 | below 0.01 µg/l 11 Dec 2025 |
| Dichlorprop :- {2,4-DP} 3551 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Diflurobenzuron 9345 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Diuron 3811 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Ethiofencarb 6955 | River water | 32 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Ethirimol 5047 | River water | 33 | Oct 2023 – Jul 2026 | below 0.05 µg/l 17 Jul 2026 |
| Fenoprop 3552 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Fenuron 9339 | River water | 32 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Flow Type 2896 | River water | 23 | Jul 2024 – Jun 2026 | Moderate Flow 25 Jun 2026 |
| Fluoranthene 0736 | River water | 29 | Oct 2023 – Jul 2026 | 0.00043 µg/l 17 Jul 2026 |
| Fluroxypyr 4064 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 28 | Oct 2023 – Jul 2026 | 1 text result 17 Jul 2026 |
| Glyphosate 3007 | River water | 26 | Apr 2024 – Jul 2026 | below 0.1 µg/l 17 Jul 2026 |
| Hardness, Calcium 0163 | River water | 33 | Oct 2023 – Jul 2026 | 27.5 mg/l 17 Jul 2026 |
| Hardness, Total as CaCO3 0158 | River water | 33 | Oct 2023 – Jul 2026 | 43.5 mg/l 17 Jul 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 4 | Feb 2026 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Imazapyr 7025 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Indeno(1,2,3-cd)pyrene 0746 | River water | 29 | Nov 2023 – Jul 2026 | 0.0001 µg/l 17 Jul 2026 |
| Ioxynil 9068 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Iron, Dissolved 6460 | River water | 33 | Oct 2023 – Jul 2026 | below 30 µg/l 17 Jul 2026 |
| Isoproturon 3117 | River water | 29 | Oct 2023 – Apr 2026 | below 0.01 µg/l 23 Apr 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 2 | Feb 2026 – May 2026 | 1 text result 14 May 2026 |
| Lead : BLM Bioavailable 3377 | River water | 32 | Oct 2023 – Jul 2026 | 0.05 µg/l 17 Jul 2026 |
| Lead, Dissolved 0052 | River water | 33 | Oct 2023 – Jul 2026 | below 0.1 µg/l 17 Jul 2026 |
| Linuron 3118 | River water | 32 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Lithium, Dissolved 4201 | River water | 33 | Oct 2023 – Jul 2026 | below 100 µg/l 17 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 33 | Oct 2023 – Jul 2026 | 3.9 mg/l 17 Jul 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 32 | Oct 2023 – Jul 2026 | 5 µg/l 17 Jul 2026 |
| Manganese, Dissolved 6458 | River water | 33 | Oct 2023 – Jul 2026 | below 10 µg/l 17 Jul 2026 |
| MCPA :- {4-Chloro-2-methylphenoxyacetic acid} 3548 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| MCPB :- {4-Chloro-2-methylphenoxybutyric acid} 3790 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Mecoprop 3549 | River water | 25 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Methabenzthiazuron 7053 | River water | 32 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Methiocarb 6971 | River water | 33 | Oct 2023 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Methomyl 6972 | River water | 33 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Metoxuron 3130 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Metsulfuron-methyl 9861 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Monolinuron 3925 | River water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Monuron 3400 | River water | 32 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 5 | Oct 2024 – Jul 2026 | below 0.002 µg/l 17 Jul 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 5 | Oct 2024 – Jul 2026 | below 0.002 µg/l 17 Jul 2026 |
| Neburon 9756 | River water | 32 | Oct 2023 – Jul 2026 | below 0.01 µg/l 17 Jul 2026 |
| Nickel : BLM Bioavailable 3878 | River water | 32 | Oct 2023 – Jul 2026 | 0.25 µg/l 17 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 33 | Oct 2023 – Jul 2026 | below 0.5 µg/l 17 Jul 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Jul 2026 | 0.0014 mg/l 17 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Jul 2026 | 0.52 mg/l 17 Jul 2026 |
| Oxamyl 6980 | River water | 33 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorobutanoic acid 2995 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorodecanoic acid 8892 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 5 | Oct 2024 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Perfluorododecanoic acid 8894 | River water | 5 | Oct 2024 – Jul 2026 | below 0.002 µg/l 17 Jul 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluoroheptanoic acid 8889 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 4 | Feb 2026 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorohexanoic acid 8888 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorononanoic acid 8891 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 5 | Oct 2024 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 4 | Feb 2026 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorooctanoate anion 9274 | River water | 32 | Oct 2023 – Jul 2026 | below 0.0006 µg/l 17 Jul 2026 |
| Perfluorooctanoic acid 8890 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluorooctylsulphonate anion 9276 | River water | 32 | Oct 2023 – Jul 2026 | below 0.00009 µg/l 17 Jul 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 5 | Oct 2024 – Jul 2026 | below 0.0005 µg/l 17 Jul 2026 |
| Perfluoropentanoic acid 8887 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 5 | Oct 2024 – Jul 2026 | below 0.006 µg/l 17 Jul 2026 |
| Perfluorotridecanoic acid 2955 | River water | 5 | Oct 2024 – Jul 2026 | below 0.002 µg/l 17 Jul 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 5 | Oct 2024 – Jul 2026 | below 0.004 µg/l 17 Jul 2026 |
| Perfluoroundecanoic acid 8893 | River water | 5 | Oct 2024 – Jul 2026 | below 0.001 µg/l 17 Jul 2026 |
| Phenoxyacetic acid :- {PAA} 6671 | River water | 24 | Nov 2023 – Dec 2025 | 0.06 µg/l 11 Dec 2025 |
| Phosphorus, Total as P 0348 | River water | 32 | Oct 2023 – Jul 2026 | 0.023 mg/l 17 Jul 2026 |
| Picloram 9883 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Potassium, Dissolved 0209 | River water | 33 | Oct 2023 – Jul 2026 | 0.79 mg/l 17 Jul 2026 |
| Propoxur 6987 | River water | 32 | Oct 2023 – Jul 2026 | below 0.005 µg/l 17 Jul 2026 |
| Silica, reactive as SiO2 0182 | River water | 32 | Oct 2023 – Jul 2026 | 6.2 mg/l 17 Jul 2026 |
| Sodium, Dissolved 0205 | River water | 33 | Oct 2023 – Jul 2026 | 8 mg/l 17 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 8 | Dec 2025 – Jul 2026 | 3.6 mg/l 17 Jul 2026 |
| Strontium, Filtered 6693 | River water | 33 | Oct 2023 – Jul 2026 | 28 µg/l 17 Jul 2026 |
| Sulcotrione 5042 | River water | 33 | Oct 2023 – Jul 2026 | below 0.1 µg/l 17 Jul 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 33 | Oct 2023 – Jul 2026 | below 10 mg/l 17 Jul 2026 |
| trans-Permethrin 9342 | River water | 25 | Oct 2023 – Jul 2026 | below 0.0001 µg/l 17 Jul 2026 |
| Tributyl Tin as Cation 8944 | River water | 24 | Oct 2023 – Dec 2025 | below 0.00002 µg/l 11 Dec 2025 |
| Triclopyr 3555 | River water | 26 | Oct 2023 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Triclosan 5889 | River water | 20 | Apr 2024 – Dec 2025 | below 0.01 µg/l 11 Dec 2025 |
| Triphenyl Tin as Cation 5732 | River water | 24 | Oct 2023 – Dec 2025 | below 0.00002 µg/l 11 Dec 2025 |
| Zinc : BLM Bioavailable 4822 | River water | 32 | Oct 2023 – Jul 2026 | 1.1 µg/l 17 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 33 | Oct 2023 – Jul 2026 | 1.1 µg/l 17 Jul 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.