Moulton River at Moulton Marsh
EA name: MOULTON RIVER AT MOULTON MARSH (also listed as “RSN1597 MOULTON RIVER AT MOULTON MARSH”)
Environment Agency sampling point AN-RSN1597 · 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
- 14 Sep 2026, 08:3917 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 37 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 531429, 330850As published, to the nearest 1 m. Open in a map
- River, by its own name
- Moulton
- River, by the map
- Moulton RiverPlaced on the river its name gives, 9 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) (37 samples)
7 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
40.2%
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 40.2 | 40.2% |
| 26 May 2026, 12:38 | 32.4 | 32.4% |
| 22 Apr 2026, 08:27 | 27.1 | 27.1% |
| 20 Mar 2026, 08:28 | 54.7 | 54.7% |
| 12 Feb 2026, 09:12 | 49.6 | 49.6% |
| 15 Jan 2026, 09:49 | 74 | 74% |
| 10 Dec 2025, 08:42 | 80.1 | 80.1% |
| 15 Jul 2025, 14:03 | 30.1 | 30.1% |
| 17 Jun 2025, 10:21 | 30.3 | 30.3% |
| 8 May 2025, 09:42 | 81.2 | 81.2% |
| 10 Apr 2025, 12:04 | 119.9 | 119.9% |
| 10 Mar 2025, 08:21 | 39.9 | 39.9% |
| 10 Feb 2025, 13:19 | 89.5 | 89.5% |
| 13 Jan 2025, 13:23 | 102.5 | 102.5% |
| 9 Dec 2024, 09:56 | 73.2 | 73.2% |
| 5 Nov 2024, 10:45 | 89.2 | 89.2% |
| 11 Oct 2024, 12:09 | 150.1 | 150.1% |
| 3 Sep 2024, 10:26 | 99.5 | 99.5% |
| 16 Aug 2024, 11:29 | 52.6 | 52.6% |
| 8 Jul 2024, 13:59 | 27.8 | 27.8% |
| 10 Jun 2024, 10:39 | 27.6 | 27.6% |
| 23 May 2024, 09:46 | 10.5 | 10.5% |
| 29 Apr 2024, 11:08 | 14.2 | 14.2% |
| 18 Mar 2024, 10:49 | 74.8 | 74.8% |
| 7 Feb 2024, 09:23 | 76.8 | 76.8% |
| 4 Jan 2024, 13:50 | 56.3 | 56.3% |
| 6 Dec 2023, 10:49 | 58.7 | 58.7% |
| 20 Nov 2023, 10:07 | 53.7 | 53.7% |
| 27 Oct 2023, 10:21 | 43.1 | 43.1% |
| 16 Oct 2023, 10:59 | 84.9 | 84.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
4.04 mg/l
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 4.04 | 4.04 mg/l |
| 26 May 2026, 12:38 | 2.6 | 2.6 mg/l |
| 22 Apr 2026, 08:27 | 3.13 | 3.13 mg/l |
| 20 Mar 2026, 08:28 | 6.22 | 6.22 mg/l |
| 12 Feb 2026, 09:12 | 5.83 | 5.83 mg/l |
| 15 Jan 2026, 09:49 | 9.26 | 9.26 mg/l |
| 10 Dec 2025, 08:42 | 9.54 | 9.54 mg/l |
| 15 Jul 2025, 14:03 | 2.81 | 2.81 mg/l |
| 17 Jun 2025, 10:21 | 2.9 | 2.9 mg/l |
| 8 May 2025, 09:42 | 8.69 | 8.69 mg/l |
| 10 Apr 2025, 12:04 | 12.8 | 12.8 mg/l |
| 10 Mar 2025, 08:21 | 4.75 | 4.75 mg/l |
| 10 Feb 2025, 13:19 | 11.1 | 11.1 mg/l |
| 13 Jan 2025, 13:23 | 13.1 | 13.1 mg/l |
| 9 Dec 2024, 09:56 | 8.82 | 8.82 mg/l |
| 5 Nov 2024, 10:45 | 9.67 | 9.67 mg/l |
| 11 Oct 2024, 12:09 | 16.9 | 16.9 mg/l |
| 3 Sep 2024, 10:26 | 9.31 | 9.31 mg/l |
| 16 Aug 2024, 11:29 | 4.98 | 4.98 mg/l |
| 8 Jul 2024, 13:59 | 2.77 | 2.77 mg/l |
| 10 Jun 2024, 10:39 | 2.92 | 2.92 mg/l |
| 23 May 2024, 09:46 | 1.04 | 1.04 mg/l |
| 29 Apr 2024, 11:08 | 1.55 | 1.55 mg/l |
| 18 Mar 2024, 10:49 | 8.27 | 8.27 mg/l |
| 7 Feb 2024, 09:23 | 9.17 | 9.17 mg/l |
| 4 Jan 2024, 13:50 | 6.66 | 6.66 mg/l |
| 6 Dec 2023, 10:49 | 7.49 | 7.49 mg/l |
| 20 Nov 2023, 10:07 | 6.12 | 6.12 mg/l |
| 27 Oct 2023, 10:21 | 4.81 | 4.81 mg/l |
| 16 Oct 2023, 10:59 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
14.8 °C
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 14.8 | 14.8 °C |
| 26 May 2026, 12:38 | 25.9 | 25.9 °C |
| 22 Apr 2026, 08:27 | 8.2 | 8.2 °C |
| 20 Mar 2026, 08:28 | 8.9 | 8.9 °C |
| 12 Feb 2026, 09:12 | 8.1 | 8.1 °C |
| 15 Jan 2026, 09:49 | 5.6 | 5.6 °C |
| 10 Dec 2025, 08:42 | 7.6 | 7.6 °C |
| 15 Jul 2025, 14:03 | 18.3 | 18.3 °C |
| 17 Jun 2025, 10:21 | 17.1 | 17.1 °C |
| 8 May 2025, 09:42 | 11.7 | 11.7 °C |
| 10 Apr 2025, 12:04 | 11.6 | 11.6 °C |
| 10 Mar 2025, 08:21 | 7 | 7 °C |
| 10 Feb 2025, 13:19 | 5.6 | 5.6 °C |
| 13 Jan 2025, 13:23 | 4.7 | 4.7 °C |
| 9 Dec 2024, 09:56 | 7.2 | 7.2 °C |
| 5 Nov 2024, 10:45 | 11.4 | 11.4 °C |
| 11 Oct 2024, 12:09 | 9.9 | 9.9 °C |
| 3 Sep 2024, 10:26 | 18.2 | 18.2 °C |
| 16 Aug 2024, 11:29 | 17.5 | 17.5 °C |
| 8 Jul 2024, 13:59 | 14.9 | 14.9 °C |
| 10 Jun 2024, 10:39 | 12.1 | 12.1 °C |
| 23 May 2024, 09:46 | 14.7 | 14.7 °C |
| 29 Apr 2024, 11:08 | 10.4 | 10.4 °C |
| 18 Mar 2024, 10:49 | 10.3 | 10.3 °C |
| 7 Feb 2024, 09:23 | 7.6 | 7.6 °C |
| 4 Jan 2024, 13:50 | 7.9 | 7.9 °C |
| 6 Dec 2023, 10:49 | 4.9 | 4.9 °C |
| 20 Nov 2023, 10:07 | 9.4 | 9.4 °C |
| 27 Oct 2023, 10:21 | 10.3 | 10.3 °C |
| 16 Oct 2023, 10:59 | 6.8 | 6.8 °C |
pH
code 0061
7.77
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 7.77 | 7.77 |
| 26 May 2026, 12:38 | 8.05 | 8.05 |
| 22 Apr 2026, 08:27 | 7.88 | 7.88 |
| 20 Mar 2026, 08:28 | 7.73 | 7.73 |
| 12 Feb 2026, 09:12 | 7.69 | 7.69 |
| 15 Jan 2026, 09:49 | 7.81 | 7.81 |
| 10 Dec 2025, 08:42 | 7.96 | 7.96 |
| 15 Jul 2025, 14:03 | 7.87 | 7.87 |
| 17 Jun 2025, 10:21 | 7.67 | 7.67 |
| 8 May 2025, 09:42 | 7.99 | 7.99 |
| 10 Apr 2025, 12:04 | 8 | 8 |
| 10 Mar 2025, 08:21 | 7.72 | 7.72 |
| 10 Feb 2025, 13:19 | 8.04 | 8.04 |
| 13 Jan 2025, 13:23 | 7.82 | 7.82 |
| 9 Dec 2024, 09:56 | 7.66 | 7.66 |
| 5 Nov 2024, 10:45 | 7.86 | 7.86 |
| 11 Oct 2024, 12:09 | 8.17 | 8.17 |
| 3 Sep 2024, 10:26 | 8.05 | 8.05 |
| 16 Aug 2024, 11:29 | 7.78 | 7.78 |
| 8 Jul 2024, 13:59 | 7.76 | 7.76 |
| 10 Jun 2024, 10:39 | 7.67 | 7.67 |
| 23 May 2024, 09:46 | 7.77 | 7.77 |
| 29 Apr 2024, 11:08 | 7.85 | 7.85 |
| 18 Mar 2024, 10:49 | 7.77 | 7.77 |
| 7 Feb 2024, 09:23 | 7.75 | 7.75 |
| 4 Jan 2024, 13:50 | 7.39 | 7.39 |
| 6 Dec 2023, 10:49 | 7.5 | 7.5 |
| 20 Nov 2023, 10:07 | 7.53 | 7.53 |
| 27 Oct 2023, 10:21 | 7.51 | 7.51 |
| 16 Oct 2023, 10:59 | 8.13 | 8.13 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
2.8 mg/l
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 2.8 | 2.8 mg/l |
| 26 May 2026, 12:38 | 4 | 4 mg/l |
| 22 Apr 2026, 08:27 | 4.5 | 4.5 mg/l |
| 20 Mar 2026, 08:28 | 1.6 | 1.6 mg/l |
| 12 Feb 2026, 09:12 | 0.38 | 0.38 mg/l |
| 15 Jan 2026, 09:49 | 0.12 | 0.12 mg/l |
| 10 Dec 2025, 08:42 | 0.22 | 0.22 mg/l |
| 15 Jul 2025, 14:03 | 0.4 | 0.4 mg/l |
| 17 Jun 2025, 10:21 | 3.9 | 3.9 mg/l |
| 8 May 2025, 09:42 | 0.15 | 0.15 mg/l |
| 10 Apr 2025, 12:04 | 0.19 | 0.19 mg/l |
| 10 Mar 2025, 08:21 | 0.39 | 0.39 mg/l |
| 10 Feb 2025, 13:19 | 0.18 | 0.18 mg/l |
| 13 Jan 2025, 13:23 | 0.18 | 0.18 mg/l |
| 9 Dec 2024, 09:56 | 0.082 | 0.082 mg/l |
| 5 Nov 2024, 10:45 | 0.29 | 0.29 mg/l |
| 11 Oct 2024, 12:09 | 0.036 | 0.036 mg/l |
| 3 Sep 2024, 10:26 | 0.0046 | 0.0046 mg/l |
| 16 Aug 2024, 11:29 | 0.51 | 0.51 mg/l |
| 8 Jul 2024, 13:59 | 1.6 | 1.6 mg/l |
| 10 Jun 2024, 10:39 | 3 | 3 mg/l |
| 23 May 2024, 09:46 | 5.8 | 5.8 mg/l |
| 29 Apr 2024, 11:08 | 4.3 | 4.3 mg/l |
| 18 Mar 2024, 10:49 | 1.2 | 1.2 mg/l |
| 7 Feb 2024, 09:23 | 0.12 | 0.12 mg/l |
| 4 Jan 2024, 13:50 | 0.1 | 0.1 mg/l |
| 6 Dec 2023, 10:49 | 0.07 | 0.07 mg/l |
| 20 Nov 2023, 10:07 | 0.12 | 0.12 mg/l |
| 27 Oct 2023, 10:21 | 0.2 | 0.2 mg/l |
| 16 Oct 2023, 10:59 | 0.01 | 0.01 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.0062 mg/l
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 0.0062 | 0.0062 mg/l |
| 26 May 2026, 12:38 | 0.0065 | 0.0065 mg/l |
| 22 Apr 2026, 08:27 | 0.0988 | 0.0988 mg/l |
| 20 Mar 2026, 08:28 | 0.117 | 0.117 mg/l |
| 12 Feb 2026, 09:12 | 9.02 | 9.02 mg/l |
| 15 Jan 2026, 09:49 | 2.36 | 2.36 mg/l |
| 10 Dec 2025, 08:42 | 0.0942 | 0.0942 mg/l |
| 15 Jul 2025, 14:03 | 0.0021 | 0.0021 mg/l |
| 17 Jun 2025, 10:21 | 0.0048 | 0.0048 mg/l |
| 8 May 2025, 09:42 | 0.019 | 0.019 mg/l |
| 10 Apr 2025, 12:04 | 0.057 | 0.057 mg/l |
| 10 Mar 2025, 08:21 | 0.253 | 0.253 mg/l |
| 10 Feb 2025, 13:19 | 1.77 | 1.77 mg/l |
| 13 Jan 2025, 13:23 | 4.65 | 4.65 mg/l |
| 9 Dec 2024, 09:56 | 14 | 14 mg/l |
| 5 Nov 2024, 10:45 | 0.617 | 0.617 mg/l |
| 11 Oct 2024, 12:09 | 1.8 | 1.8 mg/l |
| 3 Sep 2024, 10:26 | 0.0897 | 0.0897 mg/l |
| 16 Aug 2024, 11:29 | 0.027 | 0.027 mg/l |
| 8 Jul 2024, 13:59 | 0.0115 | 0.0115 mg/l |
| 10 Jun 2024, 10:39 | 0.0554 | 0.0554 mg/l |
| 23 May 2024, 09:46 | 0.0118 | 0.0118 mg/l |
| 29 Apr 2024, 11:08 | 0.0059 | 0.0059 mg/l |
| 18 Mar 2024, 10:49 | 0.446 | 0.446 mg/l |
| 7 Feb 2024, 09:23 | 0.543 | 0.543 mg/l |
| 4 Jan 2024, 13:50 | 11.9 | 11.9 mg/l |
| 6 Dec 2023, 10:49 | 13.9 | 13.9 mg/l |
| 20 Nov 2023, 10:07 | 7.37 | 7.37 mg/l |
| 27 Oct 2023, 10:21 | 5.7 | 5.7 mg/l |
| 16 Oct 2023, 10:59 | <0.004 | below 0.004 mg/l (not detected above this) |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.89 mg/l
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 0.89 | 0.89 mg/l |
| 26 May 2026, 12:38 | 0.57 | 0.57 mg/l |
| 22 Apr 2026, 08:27 | 0.26 | 0.26 mg/l |
| 20 Mar 2026, 08:28 | 0.0049 | 0.0049 mg/l |
| 12 Feb 2026, 09:12 | 0.015 | 0.015 mg/l |
| 15 Jan 2026, 09:49 | 0.0077 | 0.0077 mg/l |
| 10 Dec 2025, 08:42 | <0.005 | below 0.005 mg/l (not detected above this) |
| 15 Jul 2025, 14:03 | 0.15 | 0.15 mg/l |
| 17 Jun 2025, 10:21 | 0.72 | 0.72 mg/l |
| 8 May 2025, 09:42 | 0.081 | 0.081 mg/l |
| 10 Apr 2025, 12:04 | 0.028 | 0.028 mg/l |
| 10 Mar 2025, 08:21 | 0.013 | 0.013 mg/l |
| 10 Feb 2025, 13:19 | 0.0083 | 0.0083 mg/l |
| 13 Jan 2025, 13:23 | 0.016 | 0.016 mg/l |
| 9 Dec 2024, 09:56 | 0.071 | 0.071 mg/l |
| 5 Nov 2024, 10:45 | 0.034 | 0.034 mg/l |
| 11 Oct 2024, 12:09 | 0.048 | 0.048 mg/l |
| 3 Sep 2024, 10:26 | 0.41 | 0.41 mg/l |
| 16 Aug 2024, 11:29 | 3.9 | 3.9 mg/l |
| 8 Jul 2024, 13:59 | 0.73 | 0.73 mg/l |
| 10 Jun 2024, 10:39 | 1.4 | 1.4 mg/l |
| 23 May 2024, 09:46 | 2 | 2 mg/l |
| 29 Apr 2024, 11:08 | 1.1 | 1.1 mg/l |
| 18 Mar 2024, 10:49 | 0.01 | 0.01 mg/l |
| 7 Feb 2024, 09:23 | 0.0028 | 0.0028 mg/l |
| 4 Jan 2024, 13:50 | 0.088 | 0.088 mg/l |
| 6 Dec 2023, 10:49 | 0.049 | 0.049 mg/l |
| 20 Nov 2023, 10:07 | 0.016 | 0.016 mg/l |
| 27 Oct 2023, 10:21 | 0.066 | 0.066 mg/l |
| 16 Oct 2023, 10:59 | 0.045 | 0.045 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
2917 µS/cm
Sampled 16 Jun 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jun 2026, 08:32 | 2917 | 2917 µS/cm |
| 26 May 2026, 12:38 | 4669 | 4669 µS/cm |
| 22 Apr 2026, 08:27 | 6930 | 6930 µS/cm |
| 20 Mar 2026, 08:28 | 5987 | 5987 µS/cm |
| 12 Feb 2026, 09:12 | 2080 | 2080 µS/cm |
| 15 Jan 2026, 09:49 | 2322 | 2322 µS/cm |
| 10 Dec 2025, 08:42 | 2392 | 2392 µS/cm |
| 15 Jul 2025, 14:03 | 3080 | 3080 µS/cm |
| 17 Jun 2025, 10:21 | 3507 | 3507 µS/cm |
| 8 May 2025, 09:42 | 5783 | 5783 µS/cm |
| 10 Apr 2025, 12:04 | 6322 | 6322 µS/cm |
| 10 Mar 2025, 08:21 | 6760 | 6760 µS/cm |
| 10 Feb 2025, 13:19 | 6091 | 6091 µS/cm |
| 13 Jan 2025, 13:23 | 3734 | 3734 µS/cm |
| 9 Dec 2024, 09:56 | 1462 | 1462 µS/cm |
| 5 Nov 2024, 10:45 | 3136 | 3136 µS/cm |
| 11 Oct 2024, 12:09 | 2203 | 2203 µS/cm |
| 3 Sep 2024, 10:26 | 2956 | 2956 µS/cm |
| 16 Aug 2024, 11:29 | 3596 | 3596 µS/cm |
| 8 Jul 2024, 13:59 | 5312 | 5312 µS/cm |
| 10 Jun 2024, 10:39 | 5928 | 5928 µS/cm |
| 23 May 2024, 09:46 | 6713 | 6713 µS/cm |
| 29 Apr 2024, 11:08 | 8087 | 8087 µS/cm |
| 18 Mar 2024, 10:49 | 4927 | 4927 µS/cm |
| 7 Feb 2024, 09:23 | 6084 | 6084 µS/cm |
| 4 Jan 2024, 13:50 | 1426 | 1426 µS/cm |
| 6 Dec 2023, 10:49 | 1577 | 1577 µS/cm |
| 20 Nov 2023, 10:07 | 2068 | 2068 µS/cm |
| 27 Oct 2023, 10:21 | 1811 | 1811 µS/cm |
| 16 Oct 2023, 10:59 | 2124 | 2124 µS/cm |
Everything measured here
68 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 68 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 30 | Oct 2023 – Jun 2026 | 40.2% 16 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – Jun 2026 | 4.04 mg/l 16 Jun 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – Jun 2026 | 14.8 °C 16 Jun 2026 |
| pH 0061 | River water | 30 | Oct 2023 – Jun 2026 | 7.77 16 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Jun 2026 | 2.8 mg/l 16 Jun 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Jun 2026 | 0.0062 mg/l 16 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Jun 2026 | 0.89 mg/l 16 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – Jun 2026 | 2917 µS/cm 16 Jun 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Sep 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Jul 2024 – Sep 2024 | below 0.004 µg/l 3 Sep 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Jul 2024 – Sep 2024 | below 0.005 µg/l 3 Sep 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Jul 2024 – Sep 2024 | 0.002 µg/l 3 Sep 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Jun 2026 | 630 mg/l 16 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Oct 2023 – Jun 2026 | 0.0431 mg/l 16 Jun 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 30 | Oct 2023 – Jun 2026 | 11 mg/l 16 Jun 2026 |
| Chloride 0172 | River water | 29 | Oct 2023 – Jun 2026 | 580 mg/l 16 Jun 2026 |
| Flow Type 2896 | River water | 25 | Aug 2024 – Sep 2026 | Isolated Pools 14 Sep 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 2 | Feb 2026 – May 2026 | 1 text result 26 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Jun 2026 | 0.0048 mg/l 16 Jun 2026 |
| Nitrogen, Total as N 9686 | River water | 26 | Oct 2023 – Mar 2026 | 2.7 mg/l 20 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Jun 2026 | 0.011 mg/l 16 Jun 2026 |
| No flow /No sample 7668 | River water | 7 | Aug 2025 – Sep 2026 | No flow/discharge at sampling point 14 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| Perfluorobutanoic acid 2995 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Perfluorodecanoic acid 8892 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Jul 2024 – Sep 2024 | below 0.005 µg/l 3 Sep 2024 |
| Perfluorododecanoic acid 8894 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorohexanoic acid 8888 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorononanoic acid 8891 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluorooctanoic acid 8890 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 3 Sep 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Jul 2024 – Sep 2024 | below 0.006 µg/l 3 Sep 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Sep 2024 – Sep 2024 | below 0.005 µg/l 3 Sep 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Jul 2024 – Sep 2024 | below 0.004 µg/l 3 Sep 2024 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 3 Sep 2024 |
| Phosphorus, Total as P 0348 | River water | 30 | Oct 2023 – Jun 2026 | 1 mg/l 16 Jun 2026 |
| Silica, reactive as SiO2 0182 | River water | 30 | Oct 2023 – Jun 2026 | 46 mg/l 16 Jun 2026 |
| Solids, Suspended at 105 C 0135 | River water | 7 | Dec 2025 – Jun 2026 | 18 mg/l 16 Jun 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.