Balder at Cotherstone Road Bridge
EA name: BALDER AT COTHERSTONE ROAD BRIDGE
Environment Agency sampling point NE-45100081 · 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
- 20 Aug 2026, 13:2542 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 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 Planned investigation (local monitoring)
- Where
- National Grid 400920, 520030As published, to the nearest 10 m. Open in a map
- River, by its own name
- Balder
- River, by the map
- River BalderPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Barnard Castle On the River Tees · 6.2 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (26 samples)
Monitoring (national agency policy) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.4%
Sampled 20 Aug 2026, 42 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 101.4 | 101.4% |
| 24 Jul 2026, 15:12 | 101 | 101% |
| 22 Jun 2026, 14:32 | 99.8 | 99.8% |
| 28 May 2026, 15:37 | 100 | 100% |
| 8 Apr 2026, 14:13 | 105.8 | 105.8% |
| 17 Mar 2026, 10:41 | 102.8 | 102.8% |
| 25 Feb 2026, 10:59 | 100.4 | 100.4% |
| 2 Jan 2026, 13:51 | 100.7 | 100.7% |
| 18 Dec 2025, 11:55 | 101.8 | 101.8% |
| 26 Nov 2025, 12:16 | 98.5 | 98.5% |
| 27 Oct 2025, 10:26 | 99.6 | 99.6% |
| 24 Sep 2025, 13:01 | 102 | 102% |
| 22 Aug 2025, 11:49 | 100.7 | 100.7% |
| 22 Jul 2025, 13:50 | 101.7 | 101.7% |
| 17 Jun 2025, 11:37 | 100.3 | 100.3% |
| 22 May 2025, 09:22 | 103.5 | 103.5% |
| 23 Apr 2025, 11:42 | 107.8 | 107.8% |
| 18 Mar 2025, 09:57 | 104.1 | 104.1% |
| 21 Feb 2025, 10:30 | 102.6 | 102.6% |
| 21 Jan 2025, 10:56 | 101.5 | 101.5% |
| 12 Dec 2024, 13:10 | 101.8 | 101.8% |
| 11 Nov 2024, 11:23 | 99.8 | 99.8% |
| 10 Oct 2024, 12:54 | 99.1 | 99.1% |
| 25 Sep 2024, 12:56 | 101.3 | 101.3% |
| 5 Aug 2024, 12:42 | 101.3 | 101.3% |
| 10 Jul 2024, 09:46 | 100.6 | 100.6% |
| 5 Feb 2024, 12:26 | 100.2 | 100.2% |
| 4 Jan 2024, 11:57 | 99.6 | 99.6% |
| 14 Dec 2023, 12:20 | 101.2 | 101.2% |
| 20 Nov 2023, 10:58 | 101.1 | 101.1% |
| 16 Oct 2023, 12:26 | 100.2 | 100.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.3 mg/l
Sampled 20 Aug 2026, 42 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 10.3 | 10.3 mg/l |
| 24 Jul 2026, 15:12 | 9.86 | 9.86 mg/l |
| 22 Jun 2026, 14:32 | 10 | 10 mg/l |
| 28 May 2026, 15:37 | 10.2 | 10.2 mg/l |
| 8 Apr 2026, 14:13 | 11.8 | 11.8 mg/l |
| 17 Mar 2026, 10:41 | 12.4 | 12.4 mg/l |
| 25 Feb 2026, 10:59 | 12.5 | 12.5 mg/l |
| 2 Jan 2026, 13:51 | 14 | 14 mg/l |
| 18 Dec 2025, 11:55 | 12.5 | 12.5 mg/l |
| 26 Nov 2025, 12:16 | 12.8 | 12.8 mg/l |
| 27 Oct 2025, 10:26 | 11.7 | 11.7 mg/l |
| 24 Sep 2025, 13:01 | 10.9 | 10.9 mg/l |
| 22 Aug 2025, 11:49 | 10.3 | 10.3 mg/l |
| 22 Jul 2025, 13:50 | 9.93 | 9.93 mg/l |
| 17 Jun 2025, 11:37 | 10.2 | 10.2 mg/l |
| 22 May 2025, 09:22 | 11.5 | 11.5 mg/l |
| 23 Apr 2025, 11:42 | 12.4 | 12.4 mg/l |
| 18 Mar 2025, 09:57 | 13.5 | 13.5 mg/l |
| 21 Feb 2025, 10:30 | 13 | 13 mg/l |
| 21 Jan 2025, 10:56 | 13.3 | 13.3 mg/l |
| 12 Dec 2024, 13:10 | 12.8 | 12.8 mg/l |
| 11 Nov 2024, 11:23 | 11.8 | 11.8 mg/l |
| 10 Oct 2024, 12:54 | 11.5 | 11.5 mg/l |
| 25 Sep 2024, 12:56 | 11.3 | 11.3 mg/l |
| 5 Aug 2024, 12:42 | 9.99 | 9.99 mg/l |
| 10 Jul 2024, 09:46 | 10.5 | 10.5 mg/l |
| 5 Feb 2024, 12:26 | 12.5 | 12.5 mg/l |
| 4 Jan 2024, 11:57 | 12.5 | 12.5 mg/l |
| 14 Dec 2023, 12:20 | 12.9 | 12.9 mg/l |
| 20 Nov 2023, 10:58 | 11.8 | 11.8 mg/l |
| 16 Oct 2023, 12:26 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
14.4 °C
Sampled 20 Aug 2026, 42 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 14.4 | 14.4 °C |
| 24 Jul 2026, 15:12 | 16.4 | 16.4 °C |
| 22 Jun 2026, 14:32 | 15 | 15 °C |
| 28 May 2026, 15:37 | 14.5 | 14.5 °C |
| 8 Apr 2026, 14:13 | 10.3 | 10.3 °C |
| 17 Mar 2026, 10:41 | 7.1 | 7.1 °C |
| 25 Feb 2026, 10:59 | 5.9 | 5.9 °C |
| 2 Jan 2026, 13:51 | 1.7 | 1.7 °C |
| 18 Dec 2025, 11:55 | 6.4 | 6.4 °C |
| 26 Nov 2025, 12:16 | 4.3 | 4.3 °C |
| 27 Oct 2025, 10:26 | 8.2 | 8.2 °C |
| 24 Sep 2025, 13:01 | 12.1 | 12.1 °C |
| 22 Aug 2025, 11:49 | 14.3 | 14.3 °C |
| 22 Jul 2025, 13:50 | 16.4 | 16.4 °C |
| 17 Jun 2025, 11:37 | 14.7 | 14.7 °C |
| 22 May 2025, 09:22 | 10.6 | 10.6 °C |
| 23 Apr 2025, 11:42 | 9.3 | 9.3 °C |
| 18 Mar 2025, 09:57 | 4.3 | 4.3 °C |
| 21 Feb 2025, 10:30 | 5.4 | 5.4 °C |
| 21 Jan 2025, 10:56 | 4 | 4 °C |
| 12 Dec 2024, 13:10 | 5.7 | 5.7 °C |
| 11 Nov 2024, 11:23 | 8.1 | 8.1 °C |
| 10 Oct 2024, 12:54 | 8.9 | 8.9 °C |
| 25 Sep 2024, 12:56 | 10.6 | 10.6 °C |
| 5 Aug 2024, 12:42 | 15.9 | 15.9 °C |
| 10 Jul 2024, 09:46 | 13.3 | 13.3 °C |
| 5 Feb 2024, 12:26 | 6 | 6 °C |
| 4 Jan 2024, 11:57 | 5.6 | 5.6 °C |
| 14 Dec 2023, 12:20 | 5.1 | 5.1 °C |
| 20 Nov 2023, 10:58 | 8.4 | 8.4 °C |
| 16 Oct 2023, 12:26 | 9.6 | 9.6 °C |
pH
code 0061
7.79
Sampled 20 Aug 2026, 42 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 7.79 | 7.79 |
| 24 Jul 2026, 15:12 | 7.74 | 7.74 |
| 22 Jun 2026, 14:32 | 7.82 | 7.82 |
| 28 May 2026, 15:37 | 7.81 | 7.81 |
| 8 Apr 2026, 14:13 | 8.04 | 8.04 |
| 17 Mar 2026, 10:41 | 6.95 | 6.95 |
| 25 Feb 2026, 10:59 | 7.4 | 7.4 |
| 2 Jan 2026, 13:51 | 7.66 | 7.66 |
| 18 Dec 2025, 11:55 | 7.21 | 7.21 |
| 26 Nov 2025, 12:16 | 7.66 | 7.66 |
| 27 Oct 2025, 10:26 | 7.89 | 7.89 |
| 24 Sep 2025, 13:01 | 7.47 | 7.47 |
| 22 Aug 2025, 11:49 | 7.88 | 7.88 |
| 22 Jul 2025, 13:50 | 7.75 | 7.75 |
| 17 Jun 2025, 11:37 | 7.87 | 7.87 |
| 23 Apr 2025, 11:42 | 8.33 | 8.33 |
| 18 Mar 2025, 09:57 | 7.82 | 7.82 |
| 21 Feb 2025, 10:30 | 7.67 | 7.67 |
| 21 Jan 2025, 10:56 | 7.87 | 7.87 |
| 12 Dec 2024, 13:10 | 8 | 8 |
| 11 Nov 2024, 11:23 | 8.07 | 8.07 |
| 10 Oct 2024, 12:54 | 7.71 | 7.71 |
| 25 Sep 2024, 12:56 | 8.06 | 8.06 |
| 5 Aug 2024, 12:42 | 8.01 | 8.01 |
| 10 Jul 2024, 09:46 | 7.79 | 7.79 |
| 5 Feb 2024, 12:26 | 7.6 | 7.6 |
| 4 Jan 2024, 11:57 | 7.4 | 7.4 |
| 14 Dec 2023, 12:20 | 7.5 | 7.5 |
| 20 Nov 2023, 10:58 | 7.4 | 7.4 |
| 16 Oct 2023, 12:26 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.002 mg/l (not detected above this)
Sampled 20 Aug 2026, 42 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | <0.002 | below 0.002 mg/l (not detected above this) |
| 24 Jul 2026, 15:12 | <0.002 | below 0.002 mg/l (not detected above this) |
| 22 Jun 2026, 14:32 | 0.01 | 0.01 mg/l |
| 28 May 2026, 15:37 | <0.002 | below 0.002 mg/l (not detected above this) |
| 8 Apr 2026, 14:13 | 0.005 | 0.005 mg/l |
| 17 Mar 2026, 10:41 | 0.0047 | 0.0047 mg/l |
| 25 Feb 2026, 10:59 | 0.0088 | 0.0088 mg/l |
| 2 Jan 2026, 13:51 | 0.053 | 0.053 mg/l |
| 18 Dec 2025, 11:55 | 0.0051 | 0.0051 mg/l |
| 26 Nov 2025, 12:16 | 0.01 | 0.01 mg/l |
| 24 Sep 2025, 13:01 | 0.0033 | 0.0033 mg/l |
| 22 Aug 2025, 11:49 | 0.0029 | 0.0029 mg/l |
| 22 Jul 2025, 13:50 | 0.0048 | 0.0048 mg/l |
| 17 Jun 2025, 11:37 | 0.0098 | 0.0098 mg/l |
| 22 May 2025, 09:22 | <0.002 | below 0.002 mg/l (not detected above this) |
| 23 Apr 2025, 11:42 | 0.0059 | 0.0059 mg/l |
| 18 Mar 2025, 09:57 | <0.002 | below 0.002 mg/l (not detected above this) |
| 21 Feb 2025, 10:30 | 0.012 | 0.012 mg/l |
| 21 Jan 2025, 10:56 | 0.015 | 0.015 mg/l |
| 12 Dec 2024, 13:10 | 0.0085 | 0.0085 mg/l |
| 11 Nov 2024, 11:23 | 0.011 | 0.011 mg/l |
| 10 Oct 2024, 12:54 | 0.0061 | 0.0061 mg/l |
| 25 Sep 2024, 12:56 | 0.0021 | 0.0021 mg/l |
| 5 Aug 2024, 12:42 | 0.0084 | 0.0084 mg/l |
| 10 Jul 2024, 09:46 | 0.0048 | 0.0048 mg/l |
| 5 Feb 2024, 12:26 | 0.016 | 0.016 mg/l |
| 4 Jan 2024, 11:57 | 0.011 | 0.011 mg/l |
| 14 Dec 2023, 12:20 | 0.0085 | 0.0085 mg/l |
| 20 Nov 2023, 10:58 | 0.0076 | 0.0076 mg/l |
| 16 Oct 2023, 12:26 | 0.013 | 0.013 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.379 mg/l
Sampled 20 Aug 2026, 42 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 0.379 | 0.379 mg/l |
| 24 Jul 2026, 15:12 | 0.398 | 0.398 mg/l |
| 22 Jun 2026, 14:32 | 0.407 | 0.407 mg/l |
| 28 May 2026, 15:37 | 0.408 | 0.408 mg/l |
| 8 Apr 2026, 14:13 | 0.327 | 0.327 mg/l |
| 17 Mar 2026, 10:41 | 0.348 | 0.348 mg/l |
| 25 Feb 2026, 10:59 | 0.359 | 0.359 mg/l |
| 2 Jan 2026, 13:51 | 0.634 | 0.634 mg/l |
| 18 Dec 2025, 11:55 | 0.288 | 0.288 mg/l |
| 26 Nov 2025, 12:16 | 0.498 | 0.498 mg/l |
| 24 Sep 2025, 13:01 | 0.388 | 0.388 mg/l |
| 22 Aug 2025, 11:49 | 0.448 | 0.448 mg/l |
| 22 Jul 2025, 13:50 | 0.238 | 0.238 mg/l |
| 17 Jun 2025, 11:37 | 0.506 | 0.506 mg/l |
| 22 May 2025, 09:22 | 0.498 | 0.498 mg/l |
| 23 Apr 2025, 11:42 | 0.367 | 0.367 mg/l |
| 18 Mar 2025, 09:57 | 0.208 | 0.208 mg/l |
| 21 Feb 2025, 10:30 | 0.277 | 0.277 mg/l |
| 21 Jan 2025, 10:56 | 0.534 | 0.534 mg/l |
| 12 Dec 2024, 13:10 | 0.428 | 0.428 mg/l |
| 11 Nov 2024, 11:23 | 0.347 | 0.347 mg/l |
| 10 Oct 2024, 12:54 | 0.358 | 0.358 mg/l |
| 25 Sep 2024, 12:56 | 0.327 | 0.327 mg/l |
| 5 Aug 2024, 12:42 | 0.435 | 0.435 mg/l |
| 10 Jul 2024, 09:46 | 0.297 | 0.297 mg/l |
| 5 Feb 2024, 12:26 | 0.227 | 0.227 mg/l |
| 4 Jan 2024, 11:57 | 0.328 | 0.328 mg/l |
| 14 Dec 2023, 12:20 | 0.178 | 0.178 mg/l |
| 20 Nov 2023, 10:58 | 0.149 | 0.149 mg/l |
| 16 Oct 2023, 12:26 | 0.178 | 0.178 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.039 mg/l
Sampled 20 Aug 2026, 42 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 0.039 | 0.039 mg/l |
| 24 Jul 2026, 15:12 | 0.037 | 0.037 mg/l |
| 22 Jun 2026, 14:32 | 0.038 | 0.038 mg/l |
| 28 May 2026, 15:37 | 0.025 | 0.025 mg/l |
| 8 Apr 2026, 14:13 | 0.026 | 0.026 mg/l |
| 17 Mar 2026, 10:41 | 0.013 | 0.013 mg/l |
| 25 Feb 2026, 10:59 | 0.01 | 0.01 mg/l |
| 2 Jan 2026, 13:51 | 0.034 | 0.034 mg/l |
| 18 Dec 2025, 11:55 | 0.01 | 0.01 mg/l |
| 26 Nov 2025, 12:16 | 0.016 | 0.016 mg/l |
| 24 Sep 2025, 13:01 | 0.024 | 0.024 mg/l |
| 22 Aug 2025, 11:49 | 0.04 | 0.04 mg/l |
| 22 Jul 2025, 13:50 | 0.031 | 0.031 mg/l |
| 17 Jun 2025, 11:37 | 0.036 | 0.036 mg/l |
| 22 May 2025, 09:22 | 0.033 | 0.033 mg/l |
| 23 Apr 2025, 11:42 | 0.028 | 0.028 mg/l |
| 18 Mar 2025, 09:57 | 0.0083 | 0.0083 mg/l |
| 21 Feb 2025, 10:30 | 0.013 | 0.013 mg/l |
| 21 Jan 2025, 10:56 | 0.02 | 0.02 mg/l |
| 12 Dec 2024, 13:10 | 0.018 | 0.018 mg/l |
| 11 Nov 2024, 11:23 | 0.023 | 0.023 mg/l |
| 10 Oct 2024, 12:54 | 0.017 | 0.017 mg/l |
| 25 Sep 2024, 12:56 | 0.024 | 0.024 mg/l |
| 5 Aug 2024, 12:42 | 0.035 | 0.035 mg/l |
| 10 Jul 2024, 09:46 | 0.03 | 0.03 mg/l |
| 5 Feb 2024, 12:26 | 0.011 | 0.011 mg/l |
| 4 Jan 2024, 11:57 | 0.0093 | 0.0093 mg/l |
| 14 Dec 2023, 12:20 | 0.0083 | 0.0083 mg/l |
| 20 Nov 2023, 10:58 | 0.0073 | 0.0073 mg/l |
| 16 Oct 2023, 12:26 | 0.012 | 0.012 mg/l |
Turbidity
code 6396 · NTU
4.2 NTU
Sampled 5 Feb 2024, 2.7 years ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Feb 2024, 12:26 | 4.2 | 4.2 NTU |
| 4 Jan 2024, 11:57 | 4.3 | 4.3 NTU |
| 14 Dec 2023, 12:20 | 2.8 | 2.8 NTU |
| 20 Nov 2023, 10:58 | 3.7 | 3.7 NTU |
| 16 Oct 2023, 12:26 | 2.1 | 2.1 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
112 µS/cm
Sampled 20 Aug 2026, 42 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 13:25 | 112 | 112 µS/cm |
| 24 Jul 2026, 15:12 | 96 | 96 µS/cm |
| 22 Jun 2026, 14:32 | 106 | 106 µS/cm |
| 28 May 2026, 15:37 | 114 | 114 µS/cm |
| 8 Apr 2026, 14:13 | 107 | 107 µS/cm |
| 17 Mar 2026, 10:41 | 76 | 76 µS/cm |
| 25 Feb 2026, 10:59 | 76 | 76 µS/cm |
| 2 Jan 2026, 13:51 | 127 | 127 µS/cm |
| 18 Dec 2025, 11:55 | 85 | 85 µS/cm |
| 26 Nov 2025, 12:16 | 115 | 115 µS/cm |
| 27 Oct 2025, 10:26 | 119 | 119 µS/cm |
| 24 Sep 2025, 13:01 | 126 | 126 µS/cm |
| 22 Aug 2025, 11:49 | 119 | 119 µS/cm |
| 22 Jul 2025, 13:50 | 125 | 125 µS/cm |
| 17 Jun 2025, 11:37 | 123 | 123 µS/cm |
| 22 May 2025, 09:22 | 122 | 122 µS/cm |
| 23 Apr 2025, 11:42 | 133 | 133 µS/cm |
| 18 Mar 2025, 09:57 | 103 | 103 µS/cm |
| 21 Feb 2025, 10:30 | 104 | 104 µS/cm |
| 21 Jan 2025, 10:56 | 128 | 128 µS/cm |
| 12 Dec 2024, 13:10 | 117 | 117 µS/cm |
| 11 Nov 2024, 11:23 | 106 | 106 µS/cm |
| 10 Oct 2024, 12:54 | 100 | 100 µS/cm |
| 25 Sep 2024, 12:56 | 100 | 100 µS/cm |
| 5 Aug 2024, 12:42 | 112 | 112 µS/cm |
| 10 Jul 2024, 09:46 | 110 | 110 µS/cm |
| 5 Feb 2024, 12:26 | 89 | 89 µS/cm |
| 4 Jan 2024, 11:57 | 81 | 81 µS/cm |
| 14 Dec 2023, 12:20 | 86 | 86 µS/cm |
| 20 Nov 2023, 10:58 | 72 | 72 µS/cm |
| 16 Oct 2023, 12:26 | 108 | 108 µS/cm |
Everything measured here
32 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 32 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – Aug 2026 | 101.4% 20 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – Aug 2026 | 10.3 mg/l 20 Aug 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – Aug 2026 | 14.4 °C 20 Aug 2026 |
| pH 0061 | River water | 30 | Oct 2023 – Aug 2026 | 7.79 20 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Aug 2026 | below 0.002 mg/l 20 Aug 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Aug 2026 | 0.379 mg/l 20 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Aug 2026 | 0.039 mg/l 20 Aug 2026 |
| Turbidity 6396 | River water | 5 | Oct 2023 – Feb 2024 | 4.2 NTU 5 Feb 2024 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – Aug 2026 | 112 µS/cm 20 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Aug 2026 | 42 mg/l 20 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – Aug 2026 | below 0.00003 mg/l 20 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 5 | Oct 2023 – Feb 2024 | 0.019 µg/l 5 Feb 2024 |
| Calcium, Dissolved 0239 | River water | 5 | Oct 2023 – Feb 2024 | 11 mg/l 5 Feb 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 5 | Oct 2023 – Feb 2024 | 9.3 mg/l 5 Feb 2024 |
| Chlorophyll : Acetone Extract 7887 | River water | 5 | Oct 2023 – Feb 2024 | below 0.5 µg/l 5 Feb 2024 |
| Chromium, Dissolved 3409 | River water | 5 | Oct 2023 – Feb 2024 | below 0.5 µg/l 5 Feb 2024 |
| Copper : BLM Bioavailable 4821 | River water | 5 | Oct 2023 – Feb 2024 | 0.03 µg/l 5 Feb 2024 |
| Copper, Dissolved 6450 | River water | 5 | Oct 2023 – Feb 2024 | 1 µg/l 5 Feb 2024 |
| Iron, Dissolved 6460 | River water | 5 | Oct 2023 – Feb 2024 | 300 µg/l 5 Feb 2024 |
| Lead : BLM Bioavailable 3377 | River water | 5 | Oct 2023 – Feb 2024 | 0.05 µg/l 5 Feb 2024 |
| Lead, Dissolved 0052 | River water | 5 | Oct 2023 – Feb 2024 | 0.48 µg/l 5 Feb 2024 |
| Magnesium, Dissolved 0235 | River water | 5 | Oct 2023 – Feb 2024 | 1.6 mg/l 5 Feb 2024 |
| Manganese : BLM Bioavailable 4820 | River water | 5 | Oct 2023 – Feb 2024 | 2.3 µg/l 5 Feb 2024 |
| Manganese, Dissolved 6458 | River water | 5 | Oct 2023 – Feb 2024 | below 10 µg/l 5 Feb 2024 |
| Mercury, Dissolved 0103 | River water | 5 | Oct 2023 – Feb 2024 | below 0.01 µg/l 5 Feb 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 5 | Oct 2023 – Feb 2024 | 0.21 µg/l 5 Feb 2024 |
| Nickel, Dissolved 3410 | River water | 5 | Oct 2023 – Feb 2024 | 0.98 µg/l 5 Feb 2024 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Aug 2026 | 0.0015 mg/l 20 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Aug 2026 | 0.38 mg/l 20 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 5 | Oct 2023 – Feb 2024 | 3.6 mg/l 5 Feb 2024 |
| Zinc : BLM Bioavailable 4822 | River water | 5 | Oct 2023 – Feb 2024 | 1.2 µg/l 5 Feb 2024 |
| Zinc, Dissolved 3408 | River water | 5 | Oct 2023 – Feb 2024 | 4.7 µg/l 5 Feb 2024 |
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.