River Test Longbridge
EA name: R TEST LONGBRIDGE (also listed as “RIVER TEST AT LONGBRIDGE”)
Environment Agency sampling point SO-G0003890 · 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
- 6 Jul 2026, 11:093 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 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 Monitoring (national agency policy)
- Where
- National Grid 435499, 117847As published, to the nearest 1 m. Open in a map
- River, by its own name
- Test
- River, by the map
- River TestPlaced on the river its name gives, 16 m from the line.
- Next gauge downstream
- Longbridge On the River Test · 0.1 km along the river
- Nearest gauge upstream
- Rivermead On the River Test · 3.9 km along the riverBrewery Grill On the Oxlease Drain · 4.5 km along the riverRomsey Botley Road On the Tadburn Lake · 4.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
109.4%
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 109.4 | 109.4% |
| 9 Jun 2026, 07:18 | 91.1 | 91.1% |
| 5 May 2026, 14:20 | 117.6 | 117.6% |
| 30 Apr 2026, 15:30 | 143 | 143% |
| 5 Mar 2026, 11:58 | 99.2 | 99.2% |
| 26 Jan 2026, 13:31 | 96 | 96% |
| 10 Dec 2025, 13:15 | 92.8 | 92.8% |
| 7 Nov 2025, 07:28 | 85.9 | 85.9% |
| 17 Oct 2025, 07:53 | 86.7 | 86.7% |
| 9 Sep 2025, 13:21 | 118.5 | 118.5% |
| 14 Aug 2025, 11:12 | 106.2 | 106.2% |
| 18 Jul 2025, 16:42 | 131.1 | 131.1% |
| 3 Jun 2025, 14:18 | 107.1 | 107.1% |
| 7 May 2025, 14:55 | 120.5 | 120.5% |
| 7 Apr 2025, 08:50 | 94.7 | 94.7% |
| 7 Mar 2025, 15:56 | 100.2 | 100.2% |
| 13 Feb 2025, 14:50 | 99.3 | 99.3% |
| 10 Jan 2025, 11:27 | 94.9 | 94.9% |
| 4 Dec 2024, 15:46 | 97.3 | 97.3% |
| 1 Nov 2024, 10:35 | 94.1 | 94.1% |
| 11 Oct 2024, 11:48 | 98.3 | 98.3% |
| 5 Sep 2024, 10:53 | 89.7 | 89.7% |
| 1 Aug 2024, 12:42 | 118 | 118% |
| 4 Jul 2024, 16:41 | 119.1 | 119.1% |
| 5 Jun 2024, 16:41 | 120.3 | 120.3% |
| 1 Mar 2024, 16:07 | 98.9 | 98.9% |
| 2 Feb 2024, 13:13 | 100.9 | 100.9% |
| 11 Jan 2024, 08:22 | 92.7 | 92.7% |
| 4 Dec 2023, 09:13 | 92 | 92% |
| 6 Nov 2023, 15:38 | 95.7 | 95.7% |
| 3 Oct 2023, 08:20 | 87.6 | 87.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.1 mg/l
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 10.1 | 10.1 mg/l |
| 9 Jun 2026, 07:18 | 9.58 | 9.58 mg/l |
| 5 May 2026, 14:20 | 12 | 12 mg/l |
| 30 Apr 2026, 15:30 | 14.5 | 14.5 mg/l |
| 5 Mar 2026, 11:58 | 11.1 | 11.1 mg/l |
| 26 Jan 2026, 13:31 | 11.2 | 11.2 mg/l |
| 10 Dec 2025, 13:15 | 10.3 | 10.3 mg/l |
| 7 Nov 2025, 07:28 | 9.05 | 9.05 mg/l |
| 17 Oct 2025, 07:53 | 9.2 | 9.2 mg/l |
| 9 Sep 2025, 13:21 | 11.8 | 11.8 mg/l |
| 14 Aug 2025, 11:12 | 9.93 | 9.93 mg/l |
| 18 Jul 2025, 16:42 | 11.6 | 11.6 mg/l |
| 3 Jun 2025, 14:18 | 10.8 | 10.8 mg/l |
| 7 May 2025, 14:55 | 12.4 | 12.4 mg/l |
| 7 Apr 2025, 08:50 | 10.7 | 10.7 mg/l |
| 7 Mar 2025, 15:56 | 11.3 | 11.3 mg/l |
| 13 Feb 2025, 14:50 | 11.8 | 11.8 mg/l |
| 10 Jan 2025, 11:27 | 11.9 | 11.9 mg/l |
| 4 Dec 2024, 15:46 | 11.4 | 11.4 mg/l |
| 1 Nov 2024, 10:35 | 10.3 | 10.3 mg/l |
| 11 Oct 2024, 11:48 | 10.7 | 10.7 mg/l |
| 5 Sep 2024, 10:53 | 9.12 | 9.12 mg/l |
| 1 Aug 2024, 12:42 | 10.7 | 10.7 mg/l |
| 4 Jul 2024, 16:41 | 11.5 | 11.5 mg/l |
| 5 Jun 2024, 16:41 | 12.1 | 12.1 mg/l |
| 1 Mar 2024, 16:07 | 11.6 | 11.6 mg/l |
| 2 Feb 2024, 13:13 | 11.5 | 11.5 mg/l |
| 11 Jan 2024, 08:22 | 11.9 | 11.9 mg/l |
| 4 Dec 2023, 09:13 | 10.9 | 10.9 mg/l |
| 6 Nov 2023, 15:38 | 10.6 | 10.6 mg/l |
| 3 Oct 2023, 08:20 | 9.07 | 9.07 mg/l |
Water temperature
code 0076 · °C
19.1 °C
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 19.1 | 19.1 °C |
| 9 Jun 2026, 07:18 | 13 | 13 °C |
| 5 May 2026, 14:20 | 14.3 | 14.3 °C |
| 30 Apr 2026, 15:30 | 14.6 | 14.6 °C |
| 5 Mar 2026, 11:58 | 10.1 | 10.1 °C |
| 26 Jan 2026, 13:31 | 8.4 | 8.4 °C |
| 10 Dec 2025, 13:15 | 10.5 | 10.5 °C |
| 7 Nov 2025, 07:28 | 12.9 | 12.9 °C |
| 17 Oct 2025, 07:53 | 12.6 | 12.6 °C |
| 9 Sep 2025, 13:21 | 15.3 | 15.3 °C |
| 14 Aug 2025, 11:12 | 18.5 | 18.5 °C |
| 18 Jul 2025, 16:42 | 21.1 | 21.1 °C |
| 3 Jun 2025, 14:18 | 14.8 | 14.8 °C |
| 7 May 2025, 14:55 | 13.9 | 13.9 °C |
| 7 Apr 2025, 08:50 | 9.7 | 9.7 °C |
| 7 Mar 2025, 15:56 | 10.1 | 10.1 °C |
| 13 Feb 2025, 14:50 | 7.8 | 7.8 °C |
| 10 Jan 2025, 11:27 | 5.6 | 5.6 °C |
| 4 Dec 2024, 15:46 | 8.5 | 8.5 °C |
| 1 Nov 2024, 10:35 | 11.4 | 11.4 °C |
| 11 Oct 2024, 11:48 | 11.4 | 11.4 °C |
| 5 Sep 2024, 10:53 | 14.5 | 14.5 °C |
| 1 Aug 2024, 12:42 | 20.1 | 20.1 °C |
| 4 Jul 2024, 16:41 | 16.8 | 16.8 °C |
| 5 Jun 2024, 16:41 | 15 | 15 °C |
| 1 Mar 2024, 16:07 | 8.4 | 8.4 °C |
| 2 Feb 2024, 13:13 | 9.4 | 9.4 °C |
| 11 Jan 2024, 08:22 | 4.6 | 4.6 °C |
| 4 Dec 2023, 09:13 | 8 | 8 °C |
| 6 Nov 2023, 15:38 | 10.7 | 10.7 °C |
| 3 Oct 2023, 08:20 | 13.7 | 13.7 °C |
pH
code 0061
8.08
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 8.08 | 8.08 |
| 9 Jun 2026, 07:18 | 8.03 | 8.03 |
| 5 May 2026, 14:20 | 8.23 | 8.23 |
| 30 Apr 2026, 15:30 | 8.56 | 8.56 |
| 5 Mar 2026, 11:58 | 8.03 | 8.03 |
| 26 Jan 2026, 13:31 | 8.09 | 8.09 |
| 10 Dec 2025, 13:15 | 8.14 | 8.14 |
| 7 Nov 2025, 07:28 | 7.92 | 7.92 |
| 17 Oct 2025, 07:53 | 8.04 | 8.04 |
| 9 Sep 2025, 13:21 | 8.2 | 8.2 |
| 14 Aug 2025, 11:12 | 8.09 | 8.09 |
| 18 Jul 2025, 16:42 | 8.28 | 8.28 |
| 3 Jun 2025, 14:18 | 8.16 | 8.16 |
| 7 May 2025, 14:55 | 8.25 | 8.25 |
| 7 Apr 2025, 08:50 | 8.06 | 8.06 |
| 7 Mar 2025, 15:56 | 8.16 | 8.16 |
| 13 Feb 2025, 14:50 | 8.08 | 8.08 |
| 10 Jan 2025, 11:27 | 8.07 | 8.07 |
| 4 Dec 2024, 15:46 | 8.05 | 8.05 |
| 1 Nov 2024, 10:35 | 8 | 8 |
| 11 Oct 2024, 11:48 | 8.1 | 8.1 |
| 5 Sep 2024, 10:53 | 8.05 | 8.05 |
| 1 Aug 2024, 12:42 | 8.08 | 8.08 |
| 4 Jul 2024, 16:41 | 8.18 | 8.18 |
| 5 Jun 2024, 16:41 | 8.42 | 8.42 |
| 1 Mar 2024, 16:07 | 7.96 | 7.96 |
| 2 Feb 2024, 13:13 | 8.5 | 8.5 |
| 11 Jan 2024, 08:22 | 8.03 | 8.03 |
| 4 Dec 2023, 09:13 | 7.87 | 7.87 |
| 6 Nov 2023, 15:38 | 7.79 | 7.79 |
| 3 Oct 2023, 08:20 | 7.96 | 7.96 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.032 mg/l
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 0.032 | 0.032 mg/l |
| 9 Jun 2026, 07:18 | 0.06 | 0.06 mg/l |
| 5 May 2026, 14:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Apr 2026, 15:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2026, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jan 2026, 13:31 | 0.061 | 0.061 mg/l |
| 10 Dec 2025, 13:15 | 0.052 | 0.052 mg/l |
| 7 Nov 2025, 07:28 | 0.04 | 0.04 mg/l |
| 17 Oct 2025, 07:53 | 0.044 | 0.044 mg/l |
| 9 Sep 2025, 13:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Aug 2025, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2025, 16:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2025, 14:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 May 2025, 14:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Apr 2025, 08:50 | 0.038 | 0.038 mg/l |
| 7 Mar 2025, 15:56 | 0.047 | 0.047 mg/l |
| 13 Feb 2025, 14:50 | 0.045 | 0.045 mg/l |
| 10 Jan 2025, 11:27 | 0.03 | 0.03 mg/l |
| 4 Dec 2024, 15:46 | 0.054 | 0.054 mg/l |
| 1 Nov 2024, 10:35 | 0.041 | 0.041 mg/l |
| 11 Oct 2024, 11:48 | 0.033 | 0.033 mg/l |
| 5 Sep 2024, 10:53 | 0.046 | 0.046 mg/l |
| 1 Aug 2024, 12:42 | 0.032 | 0.032 mg/l |
| 4 Jul 2024, 16:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jun 2024, 16:41 | 0.03 | 0.03 mg/l |
| 1 Mar 2024, 16:07 | 0.075 | 0.075 mg/l |
| 2 Feb 2024, 13:13 | 0.039 | 0.039 mg/l |
| 11 Jan 2024, 08:22 | 0.056 | 0.056 mg/l |
| 4 Dec 2023, 09:13 | 0.037 | 0.037 mg/l |
| 6 Nov 2023, 15:38 | 0.057 | 0.057 mg/l |
| 3 Oct 2023, 08:20 | 0.039 | 0.039 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.56 mg/l
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 7.56 | 7.56 mg/l |
| 9 Jun 2026, 07:18 | 8.07 | 8.07 mg/l |
| 5 May 2026, 14:20 | 8.38 | 8.38 mg/l |
| 30 Apr 2026, 15:30 | 8.38 | 8.38 mg/l |
| 5 Mar 2026, 11:58 | 8.89 | 8.89 mg/l |
| 26 Jan 2026, 13:31 | 7.79 | 7.79 mg/l |
| 10 Dec 2025, 13:15 | 7.07 | 7.07 mg/l |
| 7 Nov 2025, 07:28 | 8.45 | 8.45 mg/l |
| 17 Oct 2025, 07:53 | 8.55 | 8.55 mg/l |
| 9 Sep 2025, 13:21 | 8.16 | 8.16 mg/l |
| 14 Aug 2025, 11:12 | 8.36 | 8.36 mg/l |
| 18 Jul 2025, 16:42 | 8.55 | 8.55 mg/l |
| 3 Jun 2025, 14:18 | 8.88 | 8.88 mg/l |
| 7 May 2025, 14:55 | 8.78 | 8.78 mg/l |
| 7 Apr 2025, 08:50 | 8.89 | 8.89 mg/l |
| 7 Mar 2025, 15:56 | 8.89 | 8.89 mg/l |
| 13 Feb 2025, 14:50 | 9.09 | 9.09 mg/l |
| 10 Jan 2025, 11:27 | 8.59 | 8.59 mg/l |
| 4 Dec 2024, 15:46 | 8.49 | 8.49 mg/l |
| 1 Nov 2024, 10:35 | 8.48 | 8.48 mg/l |
| 11 Oct 2024, 11:48 | 7.28 | 7.28 mg/l |
| 5 Sep 2024, 10:53 | 8.06 | 8.06 mg/l |
| 1 Aug 2024, 12:42 | 7.87 | 7.87 mg/l |
| 4 Jul 2024, 16:41 | 8.27 | 8.27 mg/l |
| 5 Jun 2024, 16:41 | 7.78 | 7.78 mg/l |
| 1 Mar 2024, 16:07 | 6.59 | 6.59 mg/l |
| 2 Feb 2024, 13:13 | 8.99 | 8.99 mg/l |
| 11 Jan 2024, 08:22 | 8.18 | 8.18 mg/l |
| 4 Dec 2023, 09:13 | 5.99 | 5.99 mg/l |
| 6 Nov 2023, 15:38 | 6.48 | 6.48 mg/l |
| 3 Oct 2023, 08:20 | 7.56 | 7.56 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.014 mg/l
Sampled 6 Jul 2026, 3 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 0.014 | 0.014 mg/l |
| 9 Jun 2026, 07:18 | 0.027 | 0.027 mg/l |
| 5 May 2026, 14:20 | 0.018 | 0.018 mg/l |
| 30 Apr 2026, 15:30 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Mar 2026, 11:58 | 0.038 | 0.038 mg/l |
| 26 Jan 2026, 13:31 | 0.047 | 0.047 mg/l |
| 10 Dec 2025, 13:15 | 0.054 | 0.054 mg/l |
| 7 Nov 2025, 07:28 | 0.044 | 0.044 mg/l |
| 17 Oct 2025, 07:53 | 0.034 | 0.034 mg/l |
| 9 Sep 2025, 13:21 | 0.031 | 0.031 mg/l |
| 14 Aug 2025, 11:12 | 0.021 | 0.021 mg/l |
| 18 Jul 2025, 16:42 | 0.021 | 0.021 mg/l |
| 3 Jun 2025, 14:18 | 0.022 | 0.022 mg/l |
| 7 May 2025, 14:55 | 0.016 | 0.016 mg/l |
| 7 Apr 2025, 08:50 | 0.014 | 0.014 mg/l |
| 7 Mar 2025, 15:56 | 0.035 | 0.035 mg/l |
| 13 Feb 2025, 14:50 | 0.049 | 0.049 mg/l |
| 10 Jan 2025, 11:27 | 0.05 | 0.05 mg/l |
| 1 Nov 2024, 10:35 | 0.053 | 0.053 mg/l |
| 11 Oct 2024, 11:48 | 0.049 | 0.049 mg/l |
| 5 Sep 2024, 10:53 | 0.04 | 0.04 mg/l |
| 1 Aug 2024, 12:42 | 0.032 | 0.032 mg/l |
| 4 Jul 2024, 16:41 | 0.03 | 0.03 mg/l |
| 5 Jun 2024, 16:41 | 0.029 | 0.029 mg/l |
| 1 Mar 2024, 16:07 | 0.045 | 0.045 mg/l |
| 2 Feb 2024, 13:13 | 0.052 | 0.052 mg/l |
| 11 Jan 2024, 08:22 | 0.05 | 0.05 mg/l |
| 4 Dec 2023, 09:13 | 0.058 | 0.058 mg/l |
| 6 Nov 2023, 15:38 | 0.046 | 0.046 mg/l |
| 3 Oct 2023, 08:20 | 0.042 | 0.042 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
563 µS/cm
Sampled 6 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 11:09 | 563 | 563 µS/cm |
| 9 Jun 2026, 07:18 | 574 | 574 µS/cm |
| 5 May 2026, 14:20 | 576 | 576 µS/cm |
| 30 Apr 2026, 15:30 | 568 | 568 µS/cm |
| 5 Mar 2026, 11:58 | 591 | 591 µS/cm |
| 26 Jan 2026, 13:31 | 566 | 566 µS/cm |
| 10 Dec 2025, 13:15 | 553 | 553 µS/cm |
| 7 Nov 2025, 07:28 | 597 | 597 µS/cm |
| 17 Oct 2025, 07:53 | 588 | 588 µS/cm |
| 9 Sep 2025, 13:21 | 575 | 575 µS/cm |
| 14 Aug 2025, 11:12 | 562 | 562 µS/cm |
| 18 Jul 2025, 16:42 | 558 | 558 µS/cm |
| 3 Jun 2025, 14:18 | 577 | 577 µS/cm |
| 7 May 2025, 14:55 | 581 | 581 µS/cm |
| 7 Apr 2025, 08:50 | 592 | 592 µS/cm |
| 7 Mar 2025, 15:56 | 601 | 601 µS/cm |
| 13 Feb 2025, 14:50 | 596 | 596 µS/cm |
| 10 Jan 2025, 11:27 | 592 | 592 µS/cm |
| 4 Dec 2024, 15:46 | 589 | 589 µS/cm |
| 1 Nov 2024, 10:35 | 602 | 602 µS/cm |
| 11 Oct 2024, 11:48 | 574 | 574 µS/cm |
| 5 Sep 2024, 10:53 | 573 | 573 µS/cm |
| 1 Aug 2024, 12:42 | 582 | 582 µS/cm |
| 4 Jul 2024, 16:41 | 594 | 594 µS/cm |
| 5 Jun 2024, 16:41 | 582 | 582 µS/cm |
| 1 Mar 2024, 16:07 | 511 | 511 µS/cm |
| 2 Feb 2024, 13:13 | 708 | 708 µS/cm |
| 11 Jan 2024, 08:22 | 605 | 605 µS/cm |
| 4 Dec 2023, 09:13 | 509 | 509 µS/cm |
| 6 Nov 2023, 15:38 | 572 | 572 µS/cm |
| 3 Oct 2023, 08:20 | 591 | 591 µS/cm |
Everything measured here
23 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 23 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – Jul 2026 | 109.4% 6 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – Jul 2026 | 10.1 mg/l 6 Jul 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – Jul 2026 | 19.1 °C 6 Jul 2026 |
| pH 0061 | River water | 31 | Oct 2023 – Jul 2026 | 8.08 6 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Jul 2026 | 0.032 mg/l 6 Jul 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – Jul 2026 | 7.56 mg/l 6 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Jul 2026 | 0.014 mg/l 6 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – Jul 2026 | 563 µS/cm 6 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Jul 2026 | 230 mg/l 6 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Jul 2026 | 0.00113 mg/l 6 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 30 | Oct 2023 – Jul 2026 | below 1 mg/l 6 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Nov 2023 – Feb 2024 | 110 mg/l 2 Feb 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 31 | Oct 2023 – Jul 2026 | 1.6 mg/l 6 Jul 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 31 | Oct 2023 – Jul 2026 | 1 text result 6 Jul 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 33 | Oct 2023 – Jul 2026 | 1 text result 6 Jul 2026 |
| Lead : BLM Bioavailable 3377 | River water | 2 | Nov 2023 – Feb 2024 | 0.03 µg/l 2 Feb 2024 |
| Lead, Dissolved 0052 | River water | 2 | Nov 2023 – Feb 2024 | below 0.1 µg/l 2 Feb 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 2 | Nov 2023 – Feb 2024 | 0.65 µg/l 2 Feb 2024 |
| Nickel, Dissolved 3410 | River water | 2 | Nov 2023 – Feb 2024 | 0.65 µg/l 2 Feb 2024 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Jul 2026 | 0.045 mg/l 6 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – Jul 2026 | 7.6 mg/l 6 Jul 2026 |
| Non Target Screening : Water 2876 | River water | 12 | Jan 2025 – Jul 2026 | 1 text result 6 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 31 | Oct 2023 – Jul 2026 | below 3 mg/l 6 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.