Porchbrook, Rock
EA name: PORCHBROOK, ROCK (also listed as “RSN1818 PORCHBROOK, ROCK”)
Environment Agency sampling point MD-RSN1818 · 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 Aug 2026, 10:3851 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 19 Dec 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 373856, 270192As published, to the nearest 1 m. Open in a map
- River, by its own name
- Porchbrook
- River, by the map
- An unnamed streamPlaced by position alone (the only river line close by), 24 m from the line.
- Next gauge downstream
- Worcester (Barbourne) On the River Severn · 25 km along the river
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
90.1%
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 90.1 | 90.1% |
| 1 Jun 2026, 10:22 | 92.7 | 92.7% |
| 8 May 2026, 12:53 | 98.6 | 98.6% |
| 20 Apr 2026, 12:16 | 100.8 | 100.8% |
| 24 Mar 2026, 10:42 | 97.4 | 97.4% |
| 17 Feb 2026, 11:20 | 99.1 | 99.1% |
| 20 Nov 2025, 11:12 | 93.6 | 93.6% |
| 28 Oct 2025, 11:01 | 83.6 | 83.6% |
| 18 Sep 2025, 10:32 | 92 | 92% |
| 20 Aug 2025, 13:57 | 89.7 | 89.7% |
| 21 Jul 2025, 10:58 | 93.2 | 93.2% |
| 30 Jun 2025, 10:51 | 91.5 | 91.5% |
| 23 Apr 2025, 12:38 | 92.1 | 92.1% |
| 17 Mar 2025, 12:56 | 101.5 | 101.5% |
| 17 Feb 2025, 11:50 | 96.8 | 96.8% |
| 20 Jan 2025, 12:18 | 95.3 | 95.3% |
| 17 Dec 2024, 12:00 | 94.6 | 94.6% |
| 5 Nov 2024, 12:14 | 88.9 | 88.9% |
| 16 Oct 2024, 11:58 | 93.5 | 93.5% |
| 30 Aug 2024, 13:45 | 87.8 | 87.8% |
| 22 Jul 2024, 12:19 | 96 | 96% |
| 25 Jun 2024, 12:29 | 90.9 | 90.9% |
| 9 May 2024, 10:24 | 92.3 | 92.3% |
| 24 Apr 2024, 12:23 | 97.6 | 97.6% |
| 22 Mar 2024, 11:59 | 96.7 | 96.7% |
| 13 Feb 2024, 12:28 | 98.5 | 98.5% |
| 24 Jan 2024, 10:23 | 98 | 98% |
| 19 Dec 2023, 11:12 | 99.1 | 99.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.37 mg/l
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 8.37 | 8.37 mg/l |
| 1 Jun 2026, 10:22 | 9.28 | 9.28 mg/l |
| 8 May 2026, 12:53 | 10.5 | 10.5 mg/l |
| 20 Apr 2026, 12:16 | 11.2 | 11.2 mg/l |
| 24 Mar 2026, 10:42 | 10.8 | 10.8 mg/l |
| 17 Feb 2026, 11:20 | 12.4 | 12.4 mg/l |
| 20 Nov 2025, 11:12 | 12.3 | 12.3 mg/l |
| 28 Oct 2025, 11:01 | 9.39 | 9.39 mg/l |
| 18 Sep 2025, 10:32 | 9.09 | 9.09 mg/l |
| 20 Aug 2025, 13:57 | 9.04 | 9.04 mg/l |
| 21 Jul 2025, 10:58 | 9.09 | 9.09 mg/l |
| 30 Jun 2025, 10:51 | 8.62 | 8.62 mg/l |
| 23 Apr 2025, 12:38 | 10.1 | 10.1 mg/l |
| 17 Mar 2025, 12:56 | 12.6 | 12.6 mg/l |
| 17 Feb 2025, 11:50 | 12.6 | 12.6 mg/l |
| 20 Jan 2025, 12:18 | 12.2 | 12.2 mg/l |
| 17 Dec 2024, 12:00 | 11 | 11 mg/l |
| 5 Nov 2024, 12:14 | 9.92 | 9.92 mg/l |
| 16 Oct 2024, 11:58 | 10.1 | 10.1 mg/l |
| 30 Aug 2024, 13:45 | 8.9 | 8.9 mg/l |
| 22 Jul 2024, 12:19 | 9.06 | 9.06 mg/l |
| 25 Jun 2024, 12:29 | 8.87 | 8.87 mg/l |
| 9 May 2024, 10:24 | 9.51 | 9.51 mg/l |
| 24 Apr 2024, 12:23 | 11 | 11 mg/l |
| 22 Mar 2024, 11:59 | 10.9 | 10.9 mg/l |
| 13 Feb 2024, 12:28 | 11.8 | 11.8 mg/l |
| 24 Jan 2024, 10:23 | 11.6 | 11.6 mg/l |
| 19 Dec 2023, 11:12 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
18.8 °C
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 18.8 | 18.8 °C |
| 1 Jun 2026, 10:22 | 15.2 | 15.2 °C |
| 8 May 2026, 12:53 | 12.5 | 12.5 °C |
| 20 Apr 2026, 12:16 | 10.6 | 10.6 °C |
| 24 Mar 2026, 10:42 | 10.5 | 10.5 °C |
| 17 Feb 2026, 11:20 | 5.6 | 5.6 °C |
| 20 Nov 2025, 11:12 | 3.8 | 3.8 °C |
| 28 Oct 2025, 11:01 | 10.1 | 10.1 °C |
| 18 Sep 2025, 10:32 | 15.8 | 15.8 °C |
| 20 Aug 2025, 13:57 | 14.9 | 14.9 °C |
| 21 Jul 2025, 10:58 | 16.4 | 16.4 °C |
| 30 Jun 2025, 10:51 | 18.1 | 18.1 °C |
| 23 Apr 2025, 12:38 | 11.3 | 11.3 °C |
| 17 Mar 2025, 12:56 | 6.1 | 6.1 °C |
| 17 Feb 2025, 11:50 | 4.2 | 4.2 °C |
| 20 Jan 2025, 12:18 | 4.8 | 4.8 °C |
| 17 Dec 2024, 12:00 | 8.8 | 8.8 °C |
| 5 Nov 2024, 12:14 | 10.4 | 10.4 °C |
| 16 Oct 2024, 11:58 | 11.8 | 11.8 °C |
| 30 Aug 2024, 13:45 | 14.6 | 14.6 °C |
| 22 Jul 2024, 12:19 | 18 | 18 °C |
| 25 Jun 2024, 12:29 | 16.4 | 16.4 °C |
| 9 May 2024, 10:24 | 13.9 | 13.9 °C |
| 24 Apr 2024, 12:23 | 9.9 | 9.9 °C |
| 22 Mar 2024, 11:59 | 10 | 10 °C |
| 13 Feb 2024, 12:28 | 7.4 | 7.4 °C |
| 24 Jan 2024, 10:23 | 7.8 | 7.8 °C |
| 19 Dec 2023, 11:12 | 9 | 9 °C |
pH
code 0061
8.01
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 8.01 | 8.01 |
| 1 Jun 2026, 10:22 | 8.12 | 8.12 |
| 8 May 2026, 12:53 | 8.18 | 8.18 |
| 20 Apr 2026, 12:16 | 8.22 | 8.22 |
| 24 Mar 2026, 10:42 | 8.19 | 8.19 |
| 17 Feb 2026, 11:20 | 8.1 | 8.1 |
| 20 Nov 2025, 11:12 | 7.69 | 7.69 |
| 28 Oct 2025, 11:01 | 8.05 | 8.05 |
| 18 Sep 2025, 10:32 | 8.02 | 8.02 |
| 20 Aug 2025, 13:57 | 8.22 | 8.22 |
| 21 Jul 2025, 10:58 | 8.22 | 8.22 |
| 30 Jun 2025, 10:51 | 7.97 | 7.97 |
| 23 Apr 2025, 12:38 | 8.23 | 8.23 |
| 17 Mar 2025, 12:56 | 8.35 | 8.35 |
| 17 Feb 2025, 11:50 | 8.05 | 8.05 |
| 20 Jan 2025, 12:18 | 8.1 | 8.1 |
| 17 Dec 2024, 12:00 | 8.1 | 8.1 |
| 5 Nov 2024, 12:14 | 8 | 8 |
| 16 Oct 2024, 11:58 | 7.96 | 7.96 |
| 30 Aug 2024, 13:45 | 8.15 | 8.15 |
| 22 Jul 2024, 12:19 | 8.1 | 8.1 |
| 25 Jun 2024, 12:29 | 8.05 | 8.05 |
| 9 May 2024, 10:24 | 8.21 | 8.21 |
| 24 Apr 2024, 12:23 | 8.2 | 8.2 |
| 22 Mar 2024, 11:59 | 8.01 | 8.01 |
| 13 Feb 2024, 12:28 | 7.87 | 7.87 |
| 24 Jan 2024, 10:23 | 7.94 | 7.94 |
| 19 Dec 2023, 11:12 | 7.75 | 7.75 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.014 mg/l
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 0.014 | 0.014 mg/l |
| 1 Jun 2026, 10:22 | 0.012 | 0.012 mg/l |
| 8 May 2026, 12:53 | 0.0039 | 0.0039 mg/l |
| 20 Apr 2026, 12:16 | 0.0057 | 0.0057 mg/l |
| 24 Mar 2026, 10:42 | 0.0087 | 0.0087 mg/l |
| 17 Feb 2026, 11:20 | 0.025 | 0.025 mg/l |
| 20 Nov 2025, 11:12 | 0.04 | 0.04 mg/l |
| 28 Oct 2025, 11:01 | <0.002 | below 0.002 mg/l (not detected above this) |
| 18 Sep 2025, 10:32 | <0.002 | below 0.002 mg/l (not detected above this) |
| 20 Aug 2025, 13:57 | 0.0063 | 0.0063 mg/l |
| 21 Jul 2025, 10:58 | <0.002 | below 0.002 mg/l (not detected above this) |
| 30 Jun 2025, 10:51 | 0.013 | 0.013 mg/l |
| 23 Apr 2025, 12:38 | 0.038 | 0.038 mg/l |
| 17 Mar 2025, 12:56 | 0.0085 | 0.0085 mg/l |
| 17 Feb 2025, 11:50 | 0.031 | 0.031 mg/l |
| 20 Jan 2025, 12:18 | 0.026 | 0.026 mg/l |
| 17 Dec 2024, 12:00 | 0.033 | 0.033 mg/l |
| 5 Nov 2024, 12:14 | 0.014 | 0.014 mg/l |
| 16 Oct 2024, 11:58 | 0.016 | 0.016 mg/l |
| 30 Aug 2024, 13:45 | <0.002 | below 0.002 mg/l (not detected above this) |
| 22 Jul 2024, 12:19 | 0.0038 | 0.0038 mg/l |
| 25 Jun 2024, 12:29 | 0.0042 | 0.0042 mg/l |
| 9 May 2024, 10:24 | 0.013 | 0.013 mg/l |
| 24 Apr 2024, 12:23 | 0.024 | 0.024 mg/l |
| 22 Mar 2024, 11:59 | 0.27 | 0.27 mg/l |
| 13 Feb 2024, 12:28 | 0.03 | 0.03 mg/l |
| 24 Jan 2024, 10:23 | 0.074 | 0.074 mg/l |
| 19 Dec 2023, 11:12 | 0.058 | 0.058 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.6 mg/l
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 1.6 | 1.6 mg/l |
| 1 Jun 2026, 10:22 | 2.19 | 2.19 mg/l |
| 8 May 2026, 12:53 | 3.79 | 3.79 mg/l |
| 20 Apr 2026, 12:16 | 4.29 | 4.29 mg/l |
| 24 Mar 2026, 10:42 | 5.48 | 5.48 mg/l |
| 17 Feb 2026, 11:20 | 5.19 | 5.19 mg/l |
| 20 Nov 2025, 11:12 | 7.56 | 7.56 mg/l |
| 28 Oct 2025, 11:01 | 1.2 | 1.2 mg/l |
| 18 Sep 2025, 10:32 | 1.5 | 1.5 mg/l |
| 20 Aug 2025, 13:57 | 1.5 | 1.5 mg/l |
| 21 Jul 2025, 10:58 | 1.4 | 1.4 mg/l |
| 30 Jun 2025, 10:51 | 1.8 | 1.8 mg/l |
| 23 Apr 2025, 12:38 | 3.47 | 3.47 mg/l |
| 17 Mar 2025, 12:56 | 5.59 | 5.59 mg/l |
| 17 Feb 2025, 11:50 | 5.19 | 5.19 mg/l |
| 20 Jan 2025, 12:18 | 6.69 | 6.69 mg/l |
| 17 Dec 2024, 12:00 | 6.07 | 6.07 mg/l |
| 5 Nov 2024, 12:14 | 4.47 | 4.47 mg/l |
| 16 Oct 2024, 11:58 | 5.77 | 5.77 mg/l |
| 30 Aug 2024, 13:45 | 2.1 | 2.1 mg/l |
| 22 Jul 2024, 12:19 | 2.69 | 2.69 mg/l |
| 25 Jun 2024, 12:29 | 3.49 | 3.49 mg/l |
| 9 May 2024, 10:24 | 4.98 | 4.98 mg/l |
| 24 Apr 2024, 12:23 | 5.88 | 5.88 mg/l |
| 22 Mar 2024, 11:59 | 6.94 | 6.94 mg/l |
| 13 Feb 2024, 12:28 | 7.18 | 7.18 mg/l |
| 24 Jan 2024, 10:23 | 6.58 | 6.58 mg/l |
| 19 Dec 2023, 11:12 | 2.69 | 2.69 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.028 mg/l
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 0.028 | 0.028 mg/l |
| 1 Jun 2026, 10:22 | 0.016 | 0.016 mg/l |
| 8 May 2026, 12:53 | 0.0048 | 0.0048 mg/l |
| 20 Apr 2026, 12:16 | 0.011 | 0.011 mg/l |
| 24 Mar 2026, 10:42 | 0.012 | 0.012 mg/l |
| 17 Feb 2026, 11:20 | 0.03 | 0.03 mg/l |
| 20 Nov 2025, 11:12 | 0.018 | 0.018 mg/l |
| 28 Oct 2025, 11:01 | 0.0061 | 0.0061 mg/l |
| 18 Sep 2025, 10:32 | 0.018 | 0.018 mg/l |
| 20 Aug 2025, 13:57 | 0.022 | 0.022 mg/l |
| 21 Jul 2025, 10:58 | 0.0013 | 0.0013 mg/l |
| 30 Jun 2025, 10:51 | 0.025 | 0.025 mg/l |
| 23 Apr 2025, 12:38 | 0.039 | 0.039 mg/l |
| 17 Mar 2025, 12:56 | 0.01 | 0.01 mg/l |
| 17 Feb 2025, 11:50 | 0.031 | 0.031 mg/l |
| 20 Jan 2025, 12:18 | 0.018 | 0.018 mg/l |
| 17 Dec 2024, 12:00 | 0.019 | 0.019 mg/l |
| 5 Nov 2024, 12:14 | 0.018 | 0.018 mg/l |
| 16 Oct 2024, 11:58 | 0.035 | 0.035 mg/l |
| 30 Aug 2024, 13:45 | 0.02 | 0.02 mg/l |
| 22 Jul 2024, 12:19 | 0.022 | 0.022 mg/l |
| 25 Jun 2024, 12:29 | 0.024 | 0.024 mg/l |
| 9 May 2024, 10:24 | 0.019 | 0.019 mg/l |
| 24 Apr 2024, 12:23 | 0.015 | 0.015 mg/l |
| 22 Mar 2024, 11:59 | 0.016 | 0.016 mg/l |
| 13 Feb 2024, 12:28 | 0.019 | 0.019 mg/l |
| 24 Jan 2024, 10:23 | 0.022 | 0.022 mg/l |
| 19 Dec 2023, 11:12 | 0.056 | 0.056 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
699 µS/cm
Sampled 10 Jul 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jul 2026, 09:33 | 699 | 699 µS/cm |
| 1 Jun 2026, 10:22 | 616 | 616 µS/cm |
| 8 May 2026, 12:53 | 618 | 618 µS/cm |
| 20 Apr 2026, 12:16 | 603 | 603 µS/cm |
| 24 Mar 2026, 10:42 | 585 | 585 µS/cm |
| 17 Feb 2026, 11:20 | 397 | 397 µS/cm |
| 20 Nov 2025, 11:12 | 520 | 520 µS/cm |
| 28 Oct 2025, 11:01 | 662 | 662 µS/cm |
| 18 Sep 2025, 10:32 | 616 | 616 µS/cm |
| 20 Aug 2025, 13:57 | 676 | 676 µS/cm |
| 21 Jul 2025, 10:58 | 618 | 618 µS/cm |
| 30 Jun 2025, 10:51 | 643 | 643 µS/cm |
| 23 Apr 2025, 12:38 | 578 | 578 µS/cm |
| 17 Mar 2025, 12:56 | 648 | 648 µS/cm |
| 17 Feb 2025, 11:50 | 496 | 496 µS/cm |
| 20 Jan 2025, 12:18 | 588 | 588 µS/cm |
| 17 Dec 2024, 12:00 | 573 | 573 µS/cm |
| 5 Nov 2024, 12:14 | 623 | 623 µS/cm |
| 16 Oct 2024, 11:58 | 484 | 484 µS/cm |
| 30 Aug 2024, 13:45 | 663 | 663 µS/cm |
| 22 Jul 2024, 12:19 | 625 | 625 µS/cm |
| 25 Jun 2024, 12:29 | 651 | 651 µS/cm |
| 9 May 2024, 10:24 | 651 | 651 µS/cm |
| 24 Apr 2024, 12:23 | 609 | 609 µS/cm |
| 22 Mar 2024, 11:59 | 542 | 542 µS/cm |
| 13 Feb 2024, 12:28 | 533 | 533 µS/cm |
| 24 Jan 2024, 10:23 | 457 | 457 µS/cm |
| 19 Dec 2023, 11:12 | 239 | 239 µS/cm |
Everything measured here
65 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 65 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 28 | Dec 2023 – Jul 2026 | 90.1% 10 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Dec 2023 – Jul 2026 | 8.37 mg/l 10 Jul 2026 |
| Temperature of Water 0076 | River water | 28 | Dec 2023 – Jul 2026 | 18.8 °C 10 Jul 2026 |
| pH 0061 | River water | 28 | Dec 2023 – Jul 2026 | 8.01 10 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Dec 2023 – Jul 2026 | 0.014 mg/l 10 Jul 2026 |
| Nitrate as N 0117 | River water | 28 | Dec 2023 – Jul 2026 | 1.6 mg/l 10 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Dec 2023 – Jul 2026 | 0.028 mg/l 10 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Dec 2023 – Jul 2026 | 699 µS/cm 10 Jul 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Feb 2025 – Feb 2025 | below 0.004 µg/l 17 Feb 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Feb 2025 – Feb 2025 | below 0.005 µg/l 17 Feb 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Dec 2023 – Jul 2026 | 190 mg/l 10 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Dec 2023 – Jul 2026 | 0.00048 mg/l 10 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 28 | Dec 2023 – Jul 2026 | 2.9 mg/l 10 Jul 2026 |
| Chloride 0172 | River water | 27 | Dec 2023 – Jul 2026 | 36 mg/l 10 Jul 2026 |
| Flow Type 2896 | River water | 20 | Jul 2024 – Aug 2026 | Low Flow 11 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 2 | Mar 2026 – Jun 2026 | 1 text result 1 Jun 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| Nitrite as N 0118 | River water | 28 | Dec 2023 – Jul 2026 | 0.0042 mg/l 10 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Dec 2023 – Jul 2026 | 1.6 mg/l 10 Jul 2026 |
| No flow /No sample 7668 | River water | 1 | Aug 2026 – Aug 2026 | No flow/discharge at sampling point 11 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Feb 2025 – Feb 2025 | 0.0013 µg/l 17 Feb 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Feb 2025 – Feb 2025 | below 0.005 µg/l 17 Feb 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Feb 2025 – Feb 2025 | below 0.0005 µg/l 17 Feb 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Feb 2025 – Feb 2025 | below 0.001 µg/l 17 Feb 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Feb 2025 – Feb 2025 | below 0.006 µg/l 17 Feb 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Feb 2025 – Feb 2025 | below 0.005 µg/l 17 Feb 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Feb 2025 – Feb 2025 | below 0.004 µg/l 17 Feb 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Feb 2025 – Feb 2025 | below 0.002 µg/l 17 Feb 2025 |
| Phosphorus, Total as P 0348 | River water | 28 | Dec 2023 – Jul 2026 | 0.055 mg/l 10 Jul 2026 |
| Silica, reactive as SiO2 0182 | River water | 28 | Dec 2023 – Jul 2026 | 9.5 mg/l 10 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Feb 2026 – Jul 2026 | 11 mg/l 10 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.