River Roch at Blackford Bridge
EA name: RIVER ROCH AT BLACKFORD BRIDGE
Environment Agency sampling point NW-88002241 · 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 Sep 2026, 11:3124 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 9 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 380680, 407734As published, to the nearest 1 m. Open in a map
- River, by its own name
- Roch
- River, by the map
- River RochPlaced on the river its name gives, 16 m from the line.
- Next gauge downstream
- Pioneer Mills On the River Irwell · 2.4 km along the riverBeside Blackford Bridge: too close to say above or below.
- Nearest gauge upstream
- Rochdale On the River Roch · 15 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (18 samples)
Monitoring (national agency policy) (10 samples)
Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
94.1%
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 94.1 | 94.1% |
| 11 Aug 2026, 09:37 | 89.4 | 89.4% |
| 13 Jul 2026, 10:00 | 95.8 | 95.8% |
| 16 Jun 2026, 11:41 | 99 | 99% |
| 14 May 2026, 11:13 | 99.7 | 99.7% |
| 17 Apr 2026, 10:44 | 100.2 | 100.2% |
| 17 Mar 2026, 11:01 | 103.1 | 103.1% |
| 18 Feb 2026, 09:33 | 98.6 | 98.6% |
| 27 Jan 2026, 12:15 | 98 | 98% |
| 3 Dec 2025, 11:35 | 99.7 | 99.7% |
| 5 Nov 2025, 10:35 | 92.5 | 92.5% |
| 20 Oct 2025, 10:23 | 98.1 | 98.1% |
| 11 Sep 2025, 11:37 | 100.9 | 100.9% |
| 12 Aug 2025, 09:13 | 92.2 | 92.2% |
| 14 Jul 2025, 11:03 | 99.2 | 99.2% |
| 18 Jun 2025, 11:25 | 97.9 | 97.9% |
| 6 May 2025, 13:42 | 109.8 | 109.8% |
| 3 Apr 2025, 11:30 | 114.3 | 114.3% |
| 20 Mar 2025, 13:21 | 138.5 | 138.5% |
| 18 Feb 2025, 13:47 | 104 | 104% |
| 23 Jan 2025, 11:18 | 99.2 | 99.2% |
| 10 Dec 2024, 09:15 | 97.7 | 97.7% |
| 22 Nov 2024, 11:23 | 86.6 | 86.6% |
| 14 Oct 2024, 10:09 | 95.5 | 95.5% |
| 23 Sep 2024, 11:30 | 92.5 | 92.5% |
| 19 Aug 2024, 08:33 | 92.5 | 92.5% |
| 30 Jul 2024, 08:05 | 87.9 | 87.9% |
| 18 Jun 2024, 09:40 | 95.8 | 95.8% |
| 12 Mar 2024, 10:37 | 100 | 100% |
| 1 Feb 2024, 11:40 | 100 | 100% |
| 4 Jan 2024, 10:03 | 98.5 | 98.5% |
| 6 Dec 2023, 09:40 | 95.1 | 95.1% |
| 6 Nov 2023, 11:56 | 97.8 | 97.8% |
| 9 Oct 2023, 11:31 | 92.9 | 92.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.28 mg/l
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 9.28 | 9.28 mg/l |
| 11 Aug 2026, 09:37 | 8.89 | 8.89 mg/l |
| 13 Jul 2026, 10:00 | 9.1 | 9.1 mg/l |
| 16 Jun 2026, 11:41 | 9.93 | 9.93 mg/l |
| 14 May 2026, 11:13 | 11.2 | 11.2 mg/l |
| 17 Apr 2026, 10:44 | 11 | 11 mg/l |
| 17 Mar 2026, 11:01 | 11.7 | 11.7 mg/l |
| 18 Feb 2026, 09:33 | 12.7 | 12.7 mg/l |
| 27 Jan 2026, 12:15 | 12.1 | 12.1 mg/l |
| 3 Dec 2025, 11:35 | 11.9 | 11.9 mg/l |
| 5 Nov 2025, 10:35 | 9.88 | 9.88 mg/l |
| 20 Oct 2025, 10:23 | 10.4 | 10.4 mg/l |
| 11 Sep 2025, 11:37 | 10.2 | 10.2 mg/l |
| 12 Aug 2025, 09:13 | 8.78 | 8.78 mg/l |
| 14 Jul 2025, 11:03 | 9.14 | 9.14 mg/l |
| 18 Jun 2025, 11:25 | 9.38 | 9.38 mg/l |
| 6 May 2025, 13:42 | 11.5 | 11.5 mg/l |
| 3 Apr 2025, 11:30 | 12.9 | 12.9 mg/l |
| 20 Mar 2025, 13:21 | 15.6 | 15.6 mg/l |
| 18 Feb 2025, 13:47 | 13.1 | 13.1 mg/l |
| 23 Jan 2025, 11:18 | 12.2 | 12.2 mg/l |
| 10 Dec 2024, 09:15 | 11.8 | 11.8 mg/l |
| 22 Nov 2024, 11:23 | 11.7 | 11.7 mg/l |
| 14 Oct 2024, 10:09 | 11 | 11 mg/l |
| 23 Sep 2024, 11:30 | 9.55 | 9.55 mg/l |
| 19 Aug 2024, 08:33 | 9.53 | 9.53 mg/l |
| 30 Jul 2024, 08:05 | 8.65 | 8.65 mg/l |
| 18 Jun 2024, 09:40 | 10 | 10 mg/l |
| 12 Mar 2024, 10:37 | 11.9 | 11.9 mg/l |
| 1 Feb 2024, 11:40 | 12.4 | 12.4 mg/l |
| 4 Jan 2024, 10:03 | 11.7 | 11.7 mg/l |
| 6 Dec 2023, 09:40 | 12.3 | 12.3 mg/l |
| 6 Nov 2023, 11:56 | 11.1 | 11.1 mg/l |
| 9 Oct 2023, 11:31 | 9.49 | 9.49 mg/l |
Water temperature
code 0076 · °C
15.9 °C
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 15.9 | 15.9 °C |
| 11 Aug 2026, 09:37 | 15.5 | 15.5 °C |
| 13 Jul 2026, 10:00 | 17.7 | 17.7 °C |
| 16 Jun 2026, 11:41 | 15.1 | 15.1 °C |
| 14 May 2026, 11:13 | 10.1 | 10.1 °C |
| 17 Apr 2026, 10:44 | 10.9 | 10.9 °C |
| 17 Mar 2026, 11:01 | 9.7 | 9.7 °C |
| 18 Feb 2026, 09:33 | 4.5 | 4.5 °C |
| 27 Jan 2026, 12:15 | 6.1 | 6.1 °C |
| 3 Dec 2025, 11:35 | 7.6 | 7.6 °C |
| 5 Nov 2025, 10:35 | 12.3 | 12.3 °C |
| 20 Oct 2025, 10:23 | 12.5 | 12.5 °C |
| 11 Sep 2025, 11:37 | 14.6 | 14.6 °C |
| 12 Aug 2025, 09:13 | 17.6 | 17.6 °C |
| 14 Jul 2025, 11:03 | 19.2 | 19.2 °C |
| 18 Jun 2025, 11:25 | 17.3 | 17.3 °C |
| 6 May 2025, 13:42 | 13.3 | 13.3 °C |
| 3 Apr 2025, 11:30 | 9.8 | 9.8 °C |
| 20 Mar 2025, 13:21 | 10 | 10 °C |
| 18 Feb 2025, 13:47 | 5.6 | 5.6 °C |
| 23 Jan 2025, 11:18 | 6.4 | 6.4 °C |
| 10 Dec 2024, 09:15 | 7.1 | 7.1 °C |
| 22 Nov 2024, 11:23 | 2.8 | 2.8 °C |
| 14 Oct 2024, 10:09 | 9.2 | 9.2 °C |
| 23 Sep 2024, 11:30 | 13.8 | 13.8 °C |
| 19 Aug 2024, 08:33 | 13.9 | 13.9 °C |
| 30 Jul 2024, 08:05 | 16 | 16 °C |
| 18 Jun 2024, 09:40 | 13.3 | 13.3 °C |
| 12 Mar 2024, 10:37 | 7.8 | 7.8 °C |
| 1 Feb 2024, 11:40 | 6 | 6 °C |
| 4 Jan 2024, 10:03 | 7.8 | 7.8 °C |
| 6 Dec 2023, 09:40 | 4.3 | 4.3 °C |
| 6 Nov 2023, 11:56 | 9.6 | 9.6 °C |
| 9 Oct 2023, 11:31 | 14.3 | 14.3 °C |
pH
code 0061
7.62
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 7.62 | 7.62 |
| 11 Aug 2026, 09:37 | 8.06 | 8.06 |
| 13 Jul 2026, 10:00 | 7.83 | 7.83 |
| 16 Jun 2026, 11:41 | 7.92 | 7.92 |
| 14 May 2026, 11:13 | 7.87 | 7.87 |
| 17 Apr 2026, 10:44 | 7.86 | 7.86 |
| 17 Mar 2026, 11:01 | 7.95 | 7.95 |
| 18 Feb 2026, 09:33 | 7.85 | 7.85 |
| 27 Jan 2026, 12:15 | 7.8 | 7.8 |
| 3 Dec 2025, 11:35 | 7.62 | 7.62 |
| 5 Nov 2025, 10:35 | 7.49 | 7.49 |
| 20 Oct 2025, 10:23 | 7.68 | 7.68 |
| 11 Sep 2025, 11:37 | 8.07 | 8.07 |
| 12 Aug 2025, 09:13 | 7.77 | 7.77 |
| 14 Jul 2025, 11:03 | 7.96 | 7.96 |
| 18 Jun 2025, 11:25 | 7.89 | 7.89 |
| 6 May 2025, 13:42 | 8.09 | 8.09 |
| 3 Apr 2025, 11:30 | 8.4 | 8.4 |
| 20 Mar 2025, 13:21 | 8.81 | 8.81 |
| 18 Feb 2025, 13:47 | 7.91 | 7.91 |
| 23 Jan 2025, 11:18 | 7.74 | 7.74 |
| 10 Dec 2024, 09:15 | 7.66 | 7.66 |
| 22 Nov 2024, 11:23 | 7.79 | 7.79 |
| 14 Oct 2024, 10:09 | 7.75 | 7.75 |
| 23 Sep 2024, 11:30 | 7.72 | 7.72 |
| 19 Aug 2024, 08:33 | 7.89 | 7.89 |
| 30 Jul 2024, 08:05 | 7.9 | 7.9 |
| 18 Jun 2024, 09:40 | 7.88 | 7.88 |
| 12 Mar 2024, 10:37 | 7.87 | 7.87 |
| 1 Feb 2024, 11:40 | 7.71 | 7.71 |
| 4 Jan 2024, 10:03 | 7.54 | 7.54 |
| 6 Dec 2023, 09:40 | 7.72 | 7.72 |
| 6 Nov 2023, 11:56 | 7.83 | 7.83 |
| 9 Oct 2023, 11:31 | 7.73 | 7.73 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.14 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 0.14 | 0.14 mg/l |
| 11 Aug 2026, 09:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Jul 2026, 10:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jun 2026, 11:41 | 0.074 | 0.074 mg/l |
| 14 May 2026, 11:13 | 0.13 | 0.13 mg/l |
| 17 Apr 2026, 10:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Mar 2026, 11:01 | 0.041 | 0.041 mg/l |
| 18 Feb 2026, 09:33 | 0.13 | 0.13 mg/l |
| 27 Jan 2026, 12:15 | 0.12 | 0.12 mg/l |
| 3 Dec 2025, 11:35 | 0.052 | 0.052 mg/l |
| 5 Nov 2025, 10:35 | 0.45 | 0.45 mg/l |
| 20 Oct 2025, 10:23 | 0.29 | 0.29 mg/l |
| 11 Sep 2025, 11:37 | 0.25 | 0.25 mg/l |
| 12 Aug 2025, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jul 2025, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jun 2025, 11:25 | 0.053 | 0.053 mg/l |
| 6 May 2025, 13:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2025, 13:21 | 0.031 | 0.031 mg/l |
| 18 Feb 2025, 13:47 | 0.2 | 0.2 mg/l |
| 23 Jan 2025, 11:18 | 0.27 | 0.27 mg/l |
| 10 Dec 2024, 09:15 | 0.13 | 0.13 mg/l |
| 22 Nov 2024, 11:23 | 0.22 | 0.22 mg/l |
| 14 Oct 2024, 10:09 | 0.15 | 0.15 mg/l |
| 23 Sep 2024, 11:30 | 0.16 | 0.16 mg/l |
| 19 Aug 2024, 08:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2024, 08:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jun 2024, 09:40 | 0.057 | 0.057 mg/l |
| 12 Mar 2024, 10:37 | 0.57 | 0.57 mg/l |
| 1 Feb 2024, 11:40 | 0.11 | 0.11 mg/l |
| 4 Jan 2024, 10:03 | 0.13 | 0.13 mg/l |
| 6 Dec 2023, 09:40 | 0.031 | 0.031 mg/l |
| 6 Nov 2023, 11:56 | 0.46 | 0.46 mg/l |
| 9 Oct 2023, 11:31 | 0.035 | 0.035 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.71 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 2.71 | 2.71 mg/l |
| 11 Aug 2026, 09:37 | 2.39 | 2.39 mg/l |
| 13 Jul 2026, 10:00 | 2.38 | 2.38 mg/l |
| 16 Jun 2026, 11:41 | 2.72 | 2.72 mg/l |
| 14 May 2026, 11:13 | 1.64 | 1.64 mg/l |
| 17 Apr 2026, 10:44 | 1.97 | 1.97 mg/l |
| 17 Mar 2026, 11:01 | 1.48 | 1.48 mg/l |
| 18 Feb 2026, 09:33 | 1.65 | 1.65 mg/l |
| 27 Jan 2026, 12:15 | 2.15 | 2.15 mg/l |
| 3 Dec 2025, 11:35 | 1.57 | 1.57 mg/l |
| 5 Nov 2025, 10:35 | 1.24 | 1.24 mg/l |
| 20 Oct 2025, 10:23 | 1.63 | 1.63 mg/l |
| 11 Sep 2025, 11:37 | 3.14 | 3.14 mg/l |
| 12 Aug 2025, 09:13 | 2.49 | 2.49 mg/l |
| 14 Jul 2025, 11:03 | 2.76 | 2.76 mg/l |
| 18 Jun 2025, 11:25 | 2.25 | 2.25 mg/l |
| 6 May 2025, 13:42 | 2.94 | 2.94 mg/l |
| 20 Mar 2025, 13:21 | 2.96 | 2.96 mg/l |
| 18 Feb 2025, 13:47 | 3.44 | 3.44 mg/l |
| 23 Jan 2025, 11:18 | 2.53 | 2.53 mg/l |
| 10 Dec 2024, 09:15 | 2.14 | 2.14 mg/l |
| 22 Nov 2024, 11:23 | 2.88 | 2.88 mg/l |
| 14 Oct 2024, 10:09 | 2.71 | 2.71 mg/l |
| 23 Sep 2024, 11:30 | 3.21 | 3.21 mg/l |
| 19 Aug 2024, 08:33 | 2.58 | 2.58 mg/l |
| 30 Jul 2024, 08:05 | 2.58 | 2.58 mg/l |
| 18 Jun 2024, 09:40 | 2.55 | 2.55 mg/l |
| 12 Mar 2024, 10:37 | 2.85 | 2.85 mg/l |
| 1 Feb 2024, 11:40 | 1.17 | 1.17 mg/l |
| 4 Jan 2024, 10:03 | 1.08 | 1.08 mg/l |
| 6 Dec 2023, 09:40 | 1.68 | 1.68 mg/l |
| 6 Nov 2023, 11:56 | 0.955 | 0.955 mg/l |
| 9 Oct 2023, 11:31 | 1.87 | 1.87 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.042 mg/l
Sampled 7 Sep 2026, 24 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 0.042 | 0.042 mg/l |
| 13 Jul 2026, 10:00 | 0.042 | 0.042 mg/l |
| 16 Jun 2026, 11:41 | 0.04 | 0.04 mg/l |
| 14 May 2026, 11:13 | 0.017 | 0.017 mg/l |
| 17 Apr 2026, 10:44 | 0.021 | 0.021 mg/l |
| 17 Mar 2026, 11:01 | 0.037 | 0.037 mg/l |
| 18 Feb 2026, 09:33 | 0.027 | 0.027 mg/l |
| 27 Jan 2026, 12:15 | 0.053 | 0.053 mg/l |
| 3 Dec 2025, 11:35 | 0.037 | 0.037 mg/l |
| 5 Nov 2025, 10:35 | 0.082 | 0.082 mg/l |
| 20 Oct 2025, 10:23 | 0.078 | 0.078 mg/l |
| 11 Sep 2025, 11:37 | 0.042 | 0.042 mg/l |
| 12 Aug 2025, 09:13 | 0.037 | 0.037 mg/l |
| 14 Jul 2025, 11:03 | 0.023 | 0.023 mg/l |
| 18 Jun 2025, 11:25 | 0.049 | 0.049 mg/l |
| 6 May 2025, 13:42 | 0.029 | 0.029 mg/l |
| 20 Mar 2025, 13:21 | 0.017 | 0.017 mg/l |
| 18 Feb 2025, 13:47 | 0.035 | 0.035 mg/l |
| 23 Jan 2025, 11:18 | 0.029 | 0.029 mg/l |
| 10 Dec 2024, 09:15 | 0.045 | 0.045 mg/l |
| 22 Nov 2024, 11:23 | 0.06 | 0.06 mg/l |
| 14 Oct 2024, 10:09 | 0.034 | 0.034 mg/l |
| 23 Sep 2024, 11:30 | 0.039 | 0.039 mg/l |
| 19 Aug 2024, 08:33 | 0.04 | 0.04 mg/l |
| 30 Jul 2024, 08:05 | 0.032 | 0.032 mg/l |
| 18 Jun 2024, 09:40 | 0.029 | 0.029 mg/l |
| 12 Mar 2024, 10:37 | 0.048 | 0.048 mg/l |
| 1 Feb 2024, 11:40 | 0.04 | 0.04 mg/l |
| 4 Jan 2024, 10:03 | 0.05 | 0.05 mg/l |
| 6 Dec 2023, 09:40 | 0.025 | 0.025 mg/l |
| 6 Nov 2023, 11:56 | 0.081 | 0.081 mg/l |
| 9 Oct 2023, 11:31 | 0.028 | 0.028 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
393 µS/cm
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 11:31 | 393 | 393 µS/cm |
| 11 Aug 2026, 09:37 | 390 | 390 µS/cm |
| 13 Jul 2026, 10:00 | 374 | 374 µS/cm |
| 16 Jun 2026, 11:41 | 334 | 334 µS/cm |
| 14 May 2026, 11:13 | 259 | 259 µS/cm |
| 17 Apr 2026, 10:44 | 312 | 312 µS/cm |
| 17 Mar 2026, 11:01 | 306 | 306 µS/cm |
| 18 Feb 2026, 09:33 | 285 | 285 µS/cm |
| 27 Jan 2026, 12:15 | 366 | 366 µS/cm |
| 3 Dec 2025, 11:35 | 255 | 255 µS/cm |
| 5 Nov 2025, 10:35 | 228 | 228 µS/cm |
| 20 Oct 2025, 10:23 | 243 | 243 µS/cm |
| 11 Sep 2025, 11:37 | 385 | 385 µS/cm |
| 12 Aug 2025, 09:13 | 367 | 367 µS/cm |
| 14 Jul 2025, 11:03 | 374 | 374 µS/cm |
| 18 Jun 2025, 11:25 | 378 | 378 µS/cm |
| 6 May 2025, 13:42 | 392 | 392 µS/cm |
| 3 Apr 2025, 11:30 | 374 | 374 µS/cm |
| 20 Mar 2025, 13:21 | 372 | 372 µS/cm |
| 18 Feb 2025, 13:47 | 360 | 360 µS/cm |
| 23 Jan 2025, 11:18 | 374 | 374 µS/cm |
| 10 Dec 2024, 09:15 | 285 | 285 µS/cm |
| 22 Nov 2024, 11:23 | 727 | 727 µS/cm |
| 14 Oct 2024, 10:09 | 316 | 316 µS/cm |
| 23 Sep 2024, 11:30 | 345 | 345 µS/cm |
| 19 Aug 2024, 08:33 | 370 | 370 µS/cm |
| 30 Jul 2024, 08:05 | 372 | 372 µS/cm |
| 18 Jun 2024, 09:40 | 317 | 317 µS/cm |
| 12 Mar 2024, 10:37 | 422 | 422 µS/cm |
| 1 Feb 2024, 11:40 | 228 | 228 µS/cm |
| 4 Jan 2024, 10:03 | 187 | 187 µS/cm |
| 6 Dec 2023, 09:40 | 274 | 274 µS/cm |
| 6 Nov 2023, 11:56 | 168 | 168 µS/cm |
| 9 Oct 2023, 11:31 | 140 | 140 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Sep 2026 | 94.1% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 9.28 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 15.9 °C 7 Sep 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Sep 2026 | 7.62 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Sep 2026 | 0.14 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Sep 2026 | 2.71 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Sep 2026 | 0.042 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 393 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Sep 2026 | 80 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Sep 2026 | 0.00166 mg/l 7 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 30 | Oct 2023 – Sep 2026 | below 4 mg/l 7 Sep 2026 |
| Chloride 0172 | River water | 23 | Oct 2023 – Sep 2026 | 39 mg/l 7 Sep 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Sep 2026 | 0.086 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Sep 2026 | 2.8 mg/l 7 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 23 | Oct 2023 – Sep 2026 | 3.3 mg/l 7 Sep 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.