Bulbourne above Gade
EA name: BULBOURNE ABOVE GADE
Environment Agency sampling point TH-PCNR0004 · 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 Aug 2026, 08:2255 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 3 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 505440, 205846As published, to the nearest 1 m. Open in a map
- River, by its own name
- Bulbourne
- River, by the map
- River BulbournePlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Hemel Hempstead, Two Waters Road On the River Bulbourne · 0.1 km along the river
- Nearest gauge upstream
- Hemel Hempstead, Old Fishery Lane On the River Bulbourne · 1.8 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (33 samples)
Monitoring (national agency policy) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
75.2%
Sampled 7 Aug 2026, 55 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 75.2 | 75.2% |
| 8 Jul 2026, 08:05 | 80.4 | 80.4% |
| 8 Jun 2026, 11:09 | 86.6 | 86.6% |
| 7 May 2026, 09:23 | 100.2 | 100.2% |
| 9 Apr 2026, 08:32 | 99.2 | 99.2% |
| 2 Mar 2026, 08:38 | 98.8 | 98.8% |
| 3 Feb 2026, 08:37 | 86.3 | 86.3% |
| 7 Jan 2026, 09:15 | 86 | 86% |
| 3 Dec 2025, 08:45 | 88.1 | 88.1% |
| 3 Nov 2025, 11:38 | 90.9 | 90.9% |
| 21 Oct 2025, 09:06 | 81.4 | 81.4% |
| 25 Sep 2025, 09:03 | 88 | 88% |
| 20 Aug 2025, 08:33 | 84.7 | 84.7% |
| 4 Jul 2025, 12:32 | 118.3 | 118.3% |
| 9 Jun 2025, 11:24 | 118.6 | 118.6% |
| 22 May 2025, 14:39 | 111.1 | 111.1% |
| 4 Apr 2025, 08:24 | 98.6 | 98.6% |
| 12 Mar 2025, 08:32 | 99.5 | 99.5% |
| 3 Feb 2025, 08:40 | 94.9 | 94.9% |
| 7 Jan 2025, 10:14 | 95.4 | 95.4% |
| 10 Dec 2024, 08:31 | 89.7 | 89.7% |
| 12 Nov 2024, 08:50 | 92.5 | 92.5% |
| 9 Oct 2024, 08:28 | 86.6 | 86.6% |
| 5 Sep 2024, 16:52 | 78.9 | 78.9% |
| 8 Aug 2024, 11:09 | 98.3 | 98.3% |
| 2 Jul 2024, 13:31 | 101.6 | 101.6% |
| 3 Jun 2024, 12:23 | 101 | 101% |
| 2 Apr 2024, 08:27 | 91 | 91% |
| 5 Mar 2024, 09:47 | 94.3 | 94.3% |
| 2 Feb 2024, 10:19 | 99.1 | 99.1% |
| 4 Jan 2024, 09:12 | 87.6 | 87.6% |
| 5 Dec 2023, 13:00 | 92.5 | 92.5% |
| 6 Nov 2023, 11:51 | 93.6 | 93.6% |
| 3 Oct 2023, 08:46 | 81 | 81% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.8 mg/l
Sampled 7 Aug 2026, 55 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 7.8 | 7.8 mg/l |
| 8 Jul 2026, 08:05 | 7.72 | 7.72 mg/l |
| 8 Jun 2026, 11:09 | 8.84 | 8.84 mg/l |
| 7 May 2026, 09:23 | 11 | 11 mg/l |
| 9 Apr 2026, 08:32 | 10.7 | 10.7 mg/l |
| 2 Mar 2026, 08:38 | 11.3 | 11.3 mg/l |
| 3 Feb 2026, 08:37 | 10.2 | 10.2 mg/l |
| 7 Jan 2026, 09:15 | 10.6 | 10.6 mg/l |
| 3 Dec 2025, 08:45 | 10.4 | 10.4 mg/l |
| 3 Nov 2025, 11:38 | 9.84 | 9.84 mg/l |
| 21 Oct 2025, 09:06 | 8.71 | 8.71 mg/l |
| 25 Sep 2025, 09:03 | 9.53 | 9.53 mg/l |
| 20 Aug 2025, 08:33 | 8.56 | 8.56 mg/l |
| 4 Jul 2025, 12:32 | 11.1 | 11.1 mg/l |
| 9 Jun 2025, 11:24 | 12 | 12 mg/l |
| 22 May 2025, 14:39 | 11.5 | 11.5 mg/l |
| 4 Apr 2025, 08:24 | 11 | 11 mg/l |
| 12 Mar 2025, 08:32 | 11.8 | 11.8 mg/l |
| 3 Feb 2025, 08:40 | 11.9 | 11.9 mg/l |
| 7 Jan 2025, 10:14 | 11.6 | 11.6 mg/l |
| 10 Dec 2024, 08:31 | 10.4 | 10.4 mg/l |
| 12 Nov 2024, 08:50 | 10.6 | 10.6 mg/l |
| 9 Oct 2024, 08:28 | 9.14 | 9.14 mg/l |
| 5 Sep 2024, 16:52 | 7.94 | 7.94 mg/l |
| 8 Aug 2024, 11:09 | 9.7 | 9.7 mg/l |
| 2 Jul 2024, 13:31 | 10.3 | 10.3 mg/l |
| 3 Jun 2024, 12:23 | 10.3 | 10.3 mg/l |
| 2 Apr 2024, 08:27 | 10.2 | 10.2 mg/l |
| 5 Mar 2024, 09:47 | 11 | 11 mg/l |
| 2 Feb 2024, 10:19 | 11.4 | 11.4 mg/l |
| 4 Jan 2024, 09:12 | 10.2 | 10.2 mg/l |
| 5 Dec 2023, 13:00 | 10.8 | 10.8 mg/l |
| 6 Nov 2023, 11:51 | 10.4 | 10.4 mg/l |
| 3 Oct 2023, 08:46 | 8.4 | 8.4 mg/l |
Water temperature
code 0076 · °C
13.6 °C
Sampled 7 Aug 2026, 55 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 13.6 | 13.6 °C |
| 8 Jul 2026, 08:05 | 17.2 | 17.2 °C |
| 8 Jun 2026, 11:09 | 14.3 | 14.3 °C |
| 7 May 2026, 09:23 | 11.1 | 11.1 °C |
| 9 Apr 2026, 08:32 | 11.9 | 11.9 °C |
| 2 Mar 2026, 08:38 | 9.5 | 9.5 °C |
| 3 Feb 2026, 08:37 | 7.9 | 7.9 °C |
| 7 Jan 2026, 09:15 | 6.2 | 6.2 °C |
| 3 Dec 2025, 08:45 | 8.2 | 8.2 °C |
| 3 Nov 2025, 11:38 | 11.7 | 11.7 °C |
| 21 Oct 2025, 09:06 | 12.2 | 12.2 °C |
| 25 Sep 2025, 09:03 | 11.7 | 11.7 °C |
| 20 Aug 2025, 08:33 | 14.8 | 14.8 °C |
| 4 Jul 2025, 12:32 | 18.3 | 18.3 °C |
| 9 Jun 2025, 11:24 | 14.6 | 14.6 °C |
| 22 May 2025, 14:39 | 13.7 | 13.7 °C |
| 4 Apr 2025, 08:24 | 10.4 | 10.4 °C |
| 12 Mar 2025, 08:32 | 8 | 8 °C |
| 3 Feb 2025, 08:40 | 5.8 | 5.8 °C |
| 7 Jan 2025, 10:14 | 6.8 | 6.8 °C |
| 10 Dec 2024, 08:31 | 8.7 | 8.7 °C |
| 12 Nov 2024, 08:50 | 9.3 | 9.3 °C |
| 9 Oct 2024, 08:28 | 12.8 | 12.8 °C |
| 5 Sep 2024, 16:52 | 15 | 15 °C |
| 8 Aug 2024, 11:09 | 15.9 | 15.9 °C |
| 2 Jul 2024, 13:31 | 14.8 | 14.8 °C |
| 3 Jun 2024, 12:23 | 14.4 | 14.4 °C |
| 2 Apr 2024, 08:27 | 10.2 | 10.2 °C |
| 5 Mar 2024, 09:47 | 8.7 | 8.7 °C |
| 2 Feb 2024, 10:19 | 9 | 9 °C |
| 4 Jan 2024, 09:12 | 8.7 | 8.7 °C |
| 5 Dec 2023, 13:00 | 8.5 | 8.5 °C |
| 6 Nov 2023, 11:51 | 10.6 | 10.6 °C |
| 3 Oct 2023, 08:46 | 13.6 | 13.6 °C |
pH
code 0061
7.6
Sampled 7 Aug 2026, 55 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 7.6 | 7.6 |
| 8 Jul 2026, 08:05 | 7.47 | 7.47 |
| 8 Jun 2026, 11:09 | 7.6 | 7.6 |
| 7 May 2026, 09:23 | 7.69 | 7.69 |
| 9 Apr 2026, 08:32 | 7.67 | 7.67 |
| 2 Mar 2026, 08:38 | 7.98 | 7.98 |
| 3 Feb 2026, 08:37 | 7.89 | 7.89 |
| 7 Jan 2026, 09:15 | 7.72 | 7.72 |
| 3 Dec 2025, 08:45 | 7.62 | 7.62 |
| 3 Nov 2025, 11:38 | 7.56 | 7.56 |
| 21 Oct 2025, 09:06 | 7.51 | 7.51 |
| 25 Sep 2025, 09:03 | 7.47 | 7.47 |
| 20 Aug 2025, 08:33 | 7.53 | 7.53 |
| 4 Jul 2025, 12:32 | 7.8 | 7.8 |
| 9 Jun 2025, 11:24 | 7.72 | 7.72 |
| 22 May 2025, 14:39 | 7.93 | 7.93 |
| 4 Apr 2025, 08:24 | 7.75 | 7.75 |
| 12 Mar 2025, 08:32 | 7.91 | 7.91 |
| 3 Feb 2025, 08:40 | 7.99 | 7.99 |
| 7 Jan 2025, 10:14 | 7.9 | 7.9 |
| 10 Dec 2024, 08:31 | 7.58 | 7.58 |
| 12 Nov 2024, 08:50 | 7.73 | 7.73 |
| 9 Oct 2024, 08:28 | 7.77 | 7.77 |
| 5 Sep 2024, 16:52 | 7.59 | 7.59 |
| 8 Aug 2024, 11:09 | 7.75 | 7.75 |
| 2 Jul 2024, 13:31 | 7.79 | 7.79 |
| 3 Jun 2024, 12:23 | 7.8 | 7.8 |
| 2 Apr 2024, 08:27 | 7.67 | 7.67 |
| 5 Mar 2024, 09:47 | 7.69 | 7.69 |
| 2 Feb 2024, 10:19 | 7.82 | 7.82 |
| 4 Jan 2024, 09:12 | 7.7 | 7.7 |
| 5 Dec 2023, 13:00 | 7.65 | 7.65 |
| 6 Nov 2023, 11:51 | 7.62 | 7.62 |
| 3 Oct 2023, 08:46 | 7.41 | 7.41 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 7 Aug 2026, 55 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2026, 08:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jun 2026, 11:09 | 0.056 | 0.056 mg/l |
| 7 May 2026, 09:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2026, 08:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 08:38 | 0.035 | 0.035 mg/l |
| 3 Feb 2026, 08:37 | 0.031 | 0.031 mg/l |
| 7 Jan 2026, 09:15 | 0.068 | 0.068 mg/l |
| 3 Dec 2025, 08:45 | 0.038 | 0.038 mg/l |
| 3 Nov 2025, 11:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Oct 2025, 09:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Sep 2025, 09:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Aug 2025, 08:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jul 2025, 12:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jun 2025, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 May 2025, 14:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2025, 08:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2025, 08:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 08:40 | 0.098 | 0.098 mg/l |
| 7 Jan 2025, 10:14 | 0.19 | 0.19 mg/l |
| 10 Dec 2024, 08:31 | 0.07 | 0.07 mg/l |
| 12 Nov 2024, 08:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Oct 2024, 08:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Sep 2024, 16:52 | 0.037 | 0.037 mg/l |
| 8 Aug 2024, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2024, 13:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2024, 12:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2024, 09:47 | 0.092 | 0.092 mg/l |
| 2 Feb 2024, 10:19 | 0.051 | 0.051 mg/l |
| 4 Jan 2024, 09:12 | 0.048 | 0.048 mg/l |
| 5 Dec 2023, 13:00 | 0.048 | 0.048 mg/l |
| 6 Nov 2023, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2023, 08:46 | 0.031 | 0.031 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.19 mg/l
Sampled 7 Aug 2026, 55 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 6.19 | 6.19 mg/l |
| 8 Jul 2026, 08:05 | 6.18 | 6.18 mg/l |
| 8 Jun 2026, 11:09 | 3.87 | 3.87 mg/l |
| 7 May 2026, 09:23 | 6.28 | 6.28 mg/l |
| 9 Apr 2026, 08:32 | 5.89 | 5.89 mg/l |
| 2 Mar 2026, 08:38 | 7.17 | 7.17 mg/l |
| 3 Feb 2026, 08:37 | 7.17 | 7.17 mg/l |
| 7 Jan 2026, 09:15 | 8.34 | 8.34 mg/l |
| 3 Dec 2025, 08:45 | 6.87 | 6.87 mg/l |
| 3 Nov 2025, 11:38 | 6.78 | 6.78 mg/l |
| 21 Oct 2025, 09:06 | 7.38 | 7.38 mg/l |
| 25 Sep 2025, 09:03 | 6.99 | 6.99 mg/l |
| 20 Aug 2025, 08:33 | 6.99 | 6.99 mg/l |
| 4 Jul 2025, 12:32 | 6.18 | 6.18 mg/l |
| 9 Jun 2025, 11:24 | 5.98 | 5.98 mg/l |
| 22 May 2025, 14:39 | 5.98 | 5.98 mg/l |
| 4 Apr 2025, 08:24 | 6.98 | 6.98 mg/l |
| 12 Mar 2025, 08:32 | 6.88 | 6.88 mg/l |
| 3 Feb 2025, 08:40 | 7.05 | 7.05 mg/l |
| 7 Jan 2025, 10:14 | 6.26 | 6.26 mg/l |
| 10 Dec 2024, 08:31 | 6.37 | 6.37 mg/l |
| 12 Nov 2024, 08:50 | 6.37 | 6.37 mg/l |
| 9 Oct 2024, 08:28 | 5.67 | 5.67 mg/l |
| 5 Sep 2024, 16:52 | 5.68 | 5.68 mg/l |
| 8 Aug 2024, 11:09 | 5.18 | 5.18 mg/l |
| 2 Jul 2024, 13:31 | 4.87 | 4.87 mg/l |
| 3 Jun 2024, 12:23 | 5.06 | 5.06 mg/l |
| 5 Mar 2024, 09:47 | 6.06 | 6.06 mg/l |
| 2 Feb 2024, 10:19 | 6.76 | 6.76 mg/l |
| 4 Jan 2024, 09:12 | 5.27 | 5.27 mg/l |
| 5 Dec 2023, 13:00 | 6.06 | 6.06 mg/l |
| 6 Nov 2023, 11:51 | 5.37 | 5.37 mg/l |
| 3 Oct 2023, 08:46 | 5.48 | 5.48 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.051 mg/l
Sampled 7 Aug 2026, 55 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 0.051 | 0.051 mg/l |
| 8 Jul 2026, 08:05 | 0.043 | 0.043 mg/l |
| 8 Jun 2026, 11:09 | 0.085 | 0.085 mg/l |
| 7 May 2026, 09:23 | 0.036 | 0.036 mg/l |
| 9 Apr 2026, 08:32 | 0.021 | 0.021 mg/l |
| 2 Mar 2026, 08:38 | 0.042 | 0.042 mg/l |
| 3 Feb 2026, 08:37 | 0.056 | 0.056 mg/l |
| 7 Jan 2026, 09:15 | 0.062 | 0.062 mg/l |
| 3 Dec 2025, 08:45 | 0.055 | 0.055 mg/l |
| 3 Nov 2025, 11:38 | 0.054 | 0.054 mg/l |
| 21 Oct 2025, 09:06 | 0.076 | 0.076 mg/l |
| 25 Sep 2025, 09:03 | 0.055 | 0.055 mg/l |
| 20 Aug 2025, 08:33 | 0.056 | 0.056 mg/l |
| 4 Jul 2025, 12:32 | 0.052 | 0.052 mg/l |
| 9 Jun 2025, 11:24 | 0.053 | 0.053 mg/l |
| 22 May 2025, 14:39 | 0.054 | 0.054 mg/l |
| 4 Apr 2025, 08:24 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Mar 2025, 08:32 | 0.022 | 0.022 mg/l |
| 3 Feb 2025, 08:40 | 0.073 | 0.073 mg/l |
| 7 Jan 2025, 10:14 | 0.12 | 0.12 mg/l |
| 10 Dec 2024, 08:31 | 0.064 | 0.064 mg/l |
| 12 Nov 2024, 08:50 | 0.064 | 0.064 mg/l |
| 9 Oct 2024, 08:28 | 0.2 | 0.2 mg/l |
| 5 Sep 2024, 16:52 | 0.17 | 0.17 mg/l |
| 8 Aug 2024, 11:09 | 0.17 | 0.17 mg/l |
| 2 Jul 2024, 13:31 | 0.14 | 0.14 mg/l |
| 3 Jun 2024, 12:23 | 0.14 | 0.14 mg/l |
| 5 Mar 2024, 09:47 | 0.14 | 0.14 mg/l |
| 2 Feb 2024, 10:19 | 0.18 | 0.18 mg/l |
| 4 Jan 2024, 09:12 | 0.15 | 0.15 mg/l |
| 5 Dec 2023, 13:00 | 0.28 | 0.28 mg/l |
| 6 Nov 2023, 11:51 | 0.15 | 0.15 mg/l |
| 3 Oct 2023, 08:46 | 0.14 | 0.14 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
660 µS/cm
Sampled 7 Aug 2026, 55 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Aug 2026, 08:22 | 660 | 660 µS/cm |
| 8 Jul 2026, 08:05 | 641 | 641 µS/cm |
| 8 Jun 2026, 11:09 | 455 | 455 µS/cm |
| 7 May 2026, 09:23 | 631 | 631 µS/cm |
| 9 Apr 2026, 08:32 | 642 | 642 µS/cm |
| 2 Mar 2026, 08:38 | 654 | 654 µS/cm |
| 3 Feb 2026, 08:37 | 665 | 665 µS/cm |
| 7 Jan 2026, 09:15 | 682 | 682 µS/cm |
| 3 Dec 2025, 08:45 | 643 | 643 µS/cm |
| 3 Nov 2025, 11:38 | 642 | 642 µS/cm |
| 21 Oct 2025, 09:06 | 650 | 650 µS/cm |
| 25 Sep 2025, 09:03 | 655 | 655 µS/cm |
| 20 Aug 2025, 08:33 | 661 | 661 µS/cm |
| 4 Jul 2025, 12:32 | 646 | 646 µS/cm |
| 9 Jun 2025, 11:24 | 636 | 636 µS/cm |
| 22 May 2025, 14:39 | 632 | 632 µS/cm |
| 4 Apr 2025, 08:24 | 676 | 676 µS/cm |
| 12 Mar 2025, 08:32 | 649 | 649 µS/cm |
| 3 Feb 2025, 08:40 | 705 | 705 µS/cm |
| 7 Jan 2025, 10:14 | 617 | 617 µS/cm |
| 10 Dec 2024, 08:31 | 614 | 614 µS/cm |
| 12 Nov 2024, 08:50 | 645 | 645 µS/cm |
| 9 Oct 2024, 08:28 | 614 | 614 µS/cm |
| 5 Sep 2024, 16:52 | 643 | 643 µS/cm |
| 8 Aug 2024, 11:09 | 638 | 638 µS/cm |
| 2 Jul 2024, 13:31 | 626 | 626 µS/cm |
| 3 Jun 2024, 12:23 | 635 | 635 µS/cm |
| 2 Apr 2024, 08:27 | 635 | 635 µS/cm |
| 5 Mar 2024, 09:47 | 646 | 646 µS/cm |
| 2 Feb 2024, 10:19 | 659 | 659 µS/cm |
| 4 Jan 2024, 09:12 | 619 | 619 µS/cm |
| 5 Dec 2023, 13:00 | 643 | 643 µS/cm |
| 6 Nov 2023, 11:51 | 611 | 611 µS/cm |
| 3 Oct 2023, 08:46 | 648 | 648 µS/cm |
Everything measured here
71 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 71 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Aug 2026 | 75.2% 7 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Aug 2026 | 7.8 mg/l 7 Aug 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Aug 2026 | 13.6 °C 7 Aug 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Aug 2026 | 7.6 7 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Aug 2026 | below 0.03 mg/l 7 Aug 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Aug 2026 | 6.19 mg/l 7 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Aug 2026 | 0.051 mg/l 7 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Aug 2026 | 660 µS/cm 7 Aug 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Jul 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Jul 2025 – Dec 2025 | 0.0011 µg/l 3 Dec 2025 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Dec 2025 – Dec 2025 | below 0.01 µg/l 3 Dec 2025 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Aug 2026 | 250 mg/l 7 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Aug 2026 | below 0.00029 mg/l 7 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Jul 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Jul 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Aug 2026 | 0.011 mg/l 7 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Aug 2026 | 6.2 mg/l 7 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorobutanoic acid 2995 | River water | 2 | Jul 2025 – Dec 2025 | 0.0011 µg/l 3 Dec 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorodecanoic acid 8892 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Jul 2025 – Dec 2025 | below 0.005 µg/l 3 Dec 2025 |
| Perfluorododecanoic acid 8894 | River water | 2 | Jul 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Jul 2025 – Dec 2025 | 0.00066 µg/l 3 Dec 2025 |
| Perfluorohexanoic acid 8888 | River water | 2 | Jul 2025 – Dec 2025 | 0.00098 µg/l 3 Dec 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorononanoic acid 8891 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Jul 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jul 2025 – Jul 2025 | 0.0007 µg/l 4 Jul 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Jul 2025 – Jul 2025 | 0.00089 µg/l 4 Jul 2025 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Dec 2025 – Dec 2025 | 0.0014 µg/l 3 Dec 2025 |
| Perfluorooctanoic acid 8890 | River water | 2 | Jul 2025 – Dec 2025 | 0.0012 µg/l 3 Dec 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Jul 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoropentanoic acid 8887 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Jul 2025 – Dec 2025 | below 0.006 µg/l 3 Dec 2025 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Jul 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Jul 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Jul 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
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.