Don at Halfpenny Bridge
EA name: DON AT HALFPENNY BRIDGE (also listed as “DON AT HALFPENNY BRIDGE TEMPLEBOROUGH”)
Environment Agency sampling point NE-49301589 · 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
- 5 Aug 2026, 14:1257 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 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 (UK govt policy - not GQA or RE)
- Where
- National Grid 440023, 391444As published, to the nearest 1 m. Open in a map
- River, by its own name
- Don
- River, by the map
- River DonPlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Rotherham On the River Don · 3.4 km along the river
- Nearest gauge upstream
- Hadfields On the River Don · 1.7 km along the riverSheffield Wincobank On the Blackburn Brook · 2.2 km along the river
- Why it was sampled
- Monitoring (UK govt policy - not GQA or RE) (17 samples)
Monitoring (national agency policy) (12 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.5%
Sampled 5 Aug 2026, 57 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 102.5 | 102.5% |
| 10 Jul 2026, 12:50 | 94.6 | 94.6% |
| 19 Jun 2026, 12:35 | 101.8 | 101.8% |
| 14 May 2026, 13:19 | 100.4 | 100.4% |
| 30 Apr 2026, 15:11 | 111.2 | 111.2% |
| 2 Mar 2026, 13:13 | 102.4 | 102.4% |
| 3 Feb 2026, 12:59 | 100.3 | 100.3% |
| 16 Jan 2026, 09:30 | 101.3 | 101.3% |
| 16 Dec 2025, 15:59 | 101.8 | 101.8% |
| 1 Dec 2025, 13:18 | 103.9 | 103.9% |
| 28 Nov 2025, 09:53 | 99.2 | 99.2% |
| 5 Nov 2025, 14:19 | 98.2 | 98.2% |
| 8 Oct 2025, 11:43 | 95.2 | 95.2% |
| 4 Sep 2025, 09:26 | 85.6 | 85.6% |
| 11 Aug 2025, 09:07 | 94.8 | 94.8% |
| 17 Jul 2025, 10:05 | 93.4 | 93.4% |
| 16 Jun 2025, 10:37 | 93.4 | 93.4% |
| 4 Mar 2024, 14:33 | 102 | 102% |
| 9 Feb 2024, 08:42 | 102 | 102% |
| 3 Jan 2024, 14:59 | 103.1 | 103.1% |
| 5 Dec 2023, 14:20 | 96.3 | 96.3% |
| 14 Nov 2023, 12:11 | 99.6 | 99.6% |
| 3 Oct 2023, 10:28 | 97.2 | 97.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.44 mg/l
Sampled 5 Aug 2026, 57 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 9.44 | 9.44 mg/l |
| 10 Jul 2026, 12:50 | 8.03 | 8.03 mg/l |
| 19 Jun 2026, 12:35 | 9.42 | 9.42 mg/l |
| 14 May 2026, 13:19 | 11.2 | 11.2 mg/l |
| 30 Apr 2026, 15:11 | 11.6 | 11.6 mg/l |
| 2 Mar 2026, 13:13 | 11.6 | 11.6 mg/l |
| 3 Feb 2026, 12:59 | 12.7 | 12.7 mg/l |
| 16 Jan 2026, 09:30 | 12.8 | 12.8 mg/l |
| 16 Dec 2025, 15:59 | 12 | 12 mg/l |
| 1 Dec 2025, 13:18 | 12 | 12 mg/l |
| 28 Nov 2025, 09:53 | 11.6 | 11.6 mg/l |
| 5 Nov 2025, 14:19 | 10.3 | 10.3 mg/l |
| 8 Oct 2025, 11:43 | 10 | 10 mg/l |
| 4 Sep 2025, 09:26 | 8.59 | 8.59 mg/l |
| 11 Aug 2025, 09:07 | 8.97 | 8.97 mg/l |
| 17 Jul 2025, 10:05 | 8.95 | 8.95 mg/l |
| 16 Jun 2025, 10:37 | 8.8 | 8.8 mg/l |
| 4 Mar 2024, 14:33 | 12.5 | 12.5 mg/l |
| 9 Feb 2024, 08:42 | 13 | 13 mg/l |
| 3 Jan 2024, 14:59 | 12.2 | 12.2 mg/l |
| 5 Dec 2023, 14:20 | 11.9 | 11.9 mg/l |
| 14 Nov 2023, 12:11 | 11.3 | 11.3 mg/l |
| 3 Oct 2023, 10:28 | 10.1 | 10.1 mg/l |
Water temperature
code 0076 · °C
19.2 °C
Sampled 5 Aug 2026, 57 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 19.2 | 19.2 °C |
| 10 Jul 2026, 12:50 | 23.4 | 23.4 °C |
| 19 Jun 2026, 12:35 | 19 | 19 °C |
| 14 May 2026, 13:19 | 10.5 | 10.5 °C |
| 30 Apr 2026, 15:11 | 13.3 | 13.3 °C |
| 2 Mar 2026, 13:13 | 9.7 | 9.7 °C |
| 3 Feb 2026, 12:59 | 5.2 | 5.2 °C |
| 16 Jan 2026, 09:30 | 5.2 | 5.2 °C |
| 16 Dec 2025, 15:59 | 8 | 8 °C |
| 1 Dec 2025, 13:18 | 8.9 | 8.9 °C |
| 28 Nov 2025, 09:53 | 8.6 | 8.6 °C |
| 5 Nov 2025, 14:19 | 13 | 13 °C |
| 8 Oct 2025, 11:43 | 13 | 13 °C |
| 4 Sep 2025, 09:26 | 15.1 | 15.1 °C |
| 11 Aug 2025, 09:07 | 17.9 | 17.9 °C |
| 17 Jul 2025, 10:05 | 17.3 | 17.3 °C |
| 16 Jun 2025, 10:37 | 18.1 | 18.1 °C |
| 4 Mar 2024, 14:33 | 6.7 | 6.7 °C |
| 9 Feb 2024, 08:42 | 4.9 | 4.9 °C |
| 3 Jan 2024, 14:59 | 7.9 | 7.9 °C |
| 5 Dec 2023, 14:20 | 6.3 | 6.3 °C |
| 14 Nov 2023, 12:11 | 9.6 | 9.6 °C |
| 3 Oct 2023, 10:28 | 13.4 | 13.4 °C |
pH
code 0061
8.14
Sampled 5 Aug 2026, 57 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 8.14 | 8.14 |
| 10 Jul 2026, 12:50 | 7.77 | 7.77 |
| 19 Jun 2026, 12:35 | 7.71 | 7.71 |
| 14 May 2026, 13:19 | 7.87 | 7.87 |
| 30 Apr 2026, 15:11 | 7.99 | 7.99 |
| 2 Mar 2026, 13:13 | 7.81 | 7.81 |
| 3 Feb 2026, 12:59 | 7.9 | 7.9 |
| 16 Jan 2026, 09:30 | 8.13 | 8.13 |
| 16 Dec 2025, 15:59 | 7.92 | 7.92 |
| 1 Dec 2025, 13:18 | 7.82 | 7.82 |
| 28 Nov 2025, 09:53 | 7.97 | 7.97 |
| 5 Nov 2025, 14:19 | 7.9 | 7.9 |
| 8 Oct 2025, 11:43 | 7.87 | 7.87 |
| 4 Sep 2025, 09:26 | 8.01 | 8.01 |
| 11 Aug 2025, 09:07 | 7.98 | 7.98 |
| 17 Jul 2025, 10:05 | 7.75 | 7.75 |
| 16 Jun 2025, 10:37 | 7.69 | 7.69 |
| 6 Mar 2025, 13:28 | 7.71 | 7.71 |
| 4 Feb 2025, 13:34 | 7.82 | 7.82 |
| 13 Jan 2025, 12:52 | 7.86 | 7.86 |
| 9 Dec 2024, 12:35 | 7.85 | 7.85 |
| 14 Nov 2024, 10:54 | 7.84 | 7.84 |
| 1 Oct 2024, 08:02 | 8.16 | 8.16 |
| 4 Sep 2024, 12:51 | 7.86 | 7.86 |
| 8 Aug 2024, 13:20 | 7.74 | 7.74 |
| 8 Jul 2024, 10:22 | 7.89 | 7.89 |
| 20 Jun 2024, 12:32 | 6.69 | 6.69 |
| 20 May 2024, 12:45 | 7.75 | 7.75 |
| 2 Apr 2024, 14:21 | 7.95 | 7.95 |
| 4 Mar 2024, 14:33 | 7.84 | 7.84 |
| 9 Feb 2024, 08:42 | 7.85 | 7.85 |
| 3 Jan 2024, 14:59 | 7.52 | 7.52 |
| 5 Dec 2023, 14:20 | 8.18 | 8.18 |
| 14 Nov 2023, 12:11 | 8.05 | 8.05 |
| 3 Oct 2023, 10:28 | 7.99 | 7.99 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 5 Aug 2026, 57 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jul 2026, 12:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jun 2026, 12:35 | 0.057 | 0.057 mg/l |
| 14 May 2026, 13:19 | 0.057 | 0.057 mg/l |
| 30 Apr 2026, 15:11 | 0.053 | 0.053 mg/l |
| 2 Mar 2026, 13:13 | 0.095 | 0.095 mg/l |
| 3 Feb 2026, 12:59 | 0.055 | 0.055 mg/l |
| 16 Jan 2026, 09:30 | 0.054 | 0.054 mg/l |
| 16 Dec 2025, 15:59 | 0.048 | 0.048 mg/l |
| 1 Dec 2025, 13:18 | 0.071 | 0.071 mg/l |
| 5 Nov 2025, 14:19 | 0.036 | 0.036 mg/l |
| 8 Oct 2025, 11:43 | 0.048 | 0.048 mg/l |
| 4 Mar 2024, 14:33 | 0.09 | 0.09 mg/l |
| 9 Feb 2024, 08:42 | 0.16 | 0.16 mg/l |
| 3 Jan 2024, 14:59 | 0.12 | 0.12 mg/l |
| 5 Dec 2023, 14:20 | 0.099 | 0.099 mg/l |
| 14 Nov 2023, 12:11 | 0.073 | 0.073 mg/l |
| 3 Oct 2023, 10:28 | 0.044 | 0.044 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.99 mg/l
Sampled 5 Aug 2026, 57 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 1.99 | 1.99 mg/l |
| 10 Jul 2026, 12:50 | 1.98 | 1.98 mg/l |
| 19 Jun 2026, 12:35 | 2.37 | 2.37 mg/l |
| 14 May 2026, 13:19 | 2.17 | 2.17 mg/l |
| 30 Apr 2026, 15:11 | 2.57 | 2.57 mg/l |
| 2 Mar 2026, 13:13 | 2.48 | 2.48 mg/l |
| 3 Feb 2026, 12:59 | 2.79 | 2.79 mg/l |
| 16 Jan 2026, 09:30 | 3.08 | 3.08 mg/l |
| 16 Dec 2025, 15:59 | 2.19 | 2.19 mg/l |
| 1 Dec 2025, 13:18 | 3.48 | 3.48 mg/l |
| 5 Nov 2025, 14:19 | 1.99 | 1.99 mg/l |
| 8 Oct 2025, 11:43 | 2.19 | 2.19 mg/l |
| 4 Mar 2024, 14:33 | 2.09 | 2.09 mg/l |
| 9 Feb 2024, 08:42 | 2.18 | 2.18 mg/l |
| 3 Jan 2024, 14:59 | 1.99 | 1.99 mg/l |
| 5 Dec 2023, 14:20 | 1.69 | 1.69 mg/l |
| 14 Nov 2023, 12:11 | 1.79 | 1.79 mg/l |
| 3 Oct 2023, 10:28 | 1.89 | 1.89 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.052 mg/l
Sampled 5 Aug 2026, 57 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 0.052 | 0.052 mg/l |
| 10 Jul 2026, 12:50 | 0.045 | 0.045 mg/l |
| 19 Jun 2026, 12:35 | 0.064 | 0.064 mg/l |
| 14 May 2026, 13:19 | 0.047 | 0.047 mg/l |
| 30 Apr 2026, 15:11 | 0.036 | 0.036 mg/l |
| 2 Mar 2026, 13:13 | 0.04 | 0.04 mg/l |
| 3 Feb 2026, 12:59 | 0.028 | 0.028 mg/l |
| 16 Jan 2026, 09:30 | 0.056 | 0.056 mg/l |
| 16 Dec 2025, 15:59 | 0.031 | 0.031 mg/l |
| 1 Dec 2025, 13:18 | 0.04 | 0.04 mg/l |
| 5 Nov 2025, 14:19 | 0.053 | 0.053 mg/l |
| 8 Oct 2025, 11:43 | 0.055 | 0.055 mg/l |
| 4 Mar 2024, 14:33 | 0.043 | 0.043 mg/l |
| 9 Feb 2024, 08:42 | 0.075 | 0.075 mg/l |
| 3 Jan 2024, 14:59 | 0.041 | 0.041 mg/l |
| 5 Dec 2023, 14:20 | 0.038 | 0.038 mg/l |
| 14 Nov 2023, 12:11 | 0.031 | 0.031 mg/l |
| 3 Oct 2023, 10:28 | 0.09 | 0.09 mg/l |
Turbidity
code 6396 · NTU
5.2 NTU
Sampled 5 Aug 2026, 57 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 5.2 | 5.2 NTU |
| 10 Jul 2026, 12:50 | 1.5 | 1.5 NTU |
| 19 Jun 2026, 12:35 | 3.6 | 3.6 NTU |
| 14 May 2026, 13:19 | 7.2 | 7.2 NTU |
| 30 Apr 2026, 15:11 | 3.6 | 3.6 NTU |
| 2 Mar 2026, 13:13 | 4.3 | 4.3 NTU |
| 3 Feb 2026, 12:59 | 4.4 | 4.4 NTU |
| 16 Jan 2026, 09:30 | 3.3 | 3.3 NTU |
| 16 Dec 2025, 15:59 | 8.4 | 8.4 NTU |
| 1 Dec 2025, 13:18 | 11 | 11 NTU |
| 5 Nov 2025, 14:19 | 5.8 | 5.8 NTU |
| 8 Oct 2025, 11:43 | 3.1 | 3.1 NTU |
| 4 Mar 2024, 14:33 | 4.4 | 4.4 NTU |
| 9 Feb 2024, 08:42 | 51 | 51 NTU |
| 3 Jan 2024, 14:59 | 15 | 15 NTU |
| 5 Dec 2023, 14:20 | 37 | 37 NTU |
| 14 Nov 2023, 12:11 | 5.6 | 5.6 NTU |
| 3 Oct 2023, 10:28 | 10 | 10 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
428 µS/cm
Sampled 5 Aug 2026, 57 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 14:12 | 428 | 428 µS/cm |
| 10 Jul 2026, 12:50 | 430 | 430 µS/cm |
| 19 Jun 2026, 12:35 | 443 | 443 µS/cm |
| 14 May 2026, 13:19 | 375 | 375 µS/cm |
| 30 Apr 2026, 15:11 | 444 | 444 µS/cm |
| 2 Mar 2026, 13:13 | 354 | 354 µS/cm |
| 3 Feb 2026, 12:59 | 298 | 298 µS/cm |
| 16 Jan 2026, 09:30 | 401 | 401 µS/cm |
| 16 Dec 2025, 15:59 | 251 | 251 µS/cm |
| 1 Dec 2025, 13:18 | 418 | 418 µS/cm |
| 28 Nov 2025, 09:53 | 416 | 416 µS/cm |
| 5 Nov 2025, 14:19 | 376 | 376 µS/cm |
| 8 Oct 2025, 11:43 | 426 | 426 µS/cm |
| 4 Sep 2025, 09:26 | 460 | 460 µS/cm |
| 11 Aug 2025, 09:07 | 624 | 624 µS/cm |
| 17 Jul 2025, 10:05 | 421 | 421 µS/cm |
| 16 Jun 2025, 10:37 | 503 | 503 µS/cm |
| 4 Mar 2024, 14:33 | 314 | 314 µS/cm |
| 9 Feb 2024, 08:42 | 511 | 511 µS/cm |
| 3 Jan 2024, 14:59 | 221 | 221 µS/cm |
| 5 Dec 2023, 14:20 | 234 | 234 µS/cm |
| 14 Nov 2023, 12:11 | 283 | 283 µS/cm |
| 3 Oct 2023, 10:28 | 344 | 344 µS/cm |
Everything measured here
91 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 91 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Oct 2023 – Aug 2026 | 102.5% 5 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Oct 2023 – Aug 2026 | 9.44 mg/l 5 Aug 2026 |
| Temperature of Water 0076 | River water | 23 | Oct 2023 – Aug 2026 | 19.2 °C 5 Aug 2026 |
| pH 0061 | River water | 35 | Oct 2023 – Aug 2026 | 8.14 5 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 18 | Oct 2023 – Aug 2026 | below 0.03 mg/l 5 Aug 2026 |
| Nitrate as N 0117 | River water | 18 | Oct 2023 – Aug 2026 | 1.99 mg/l 5 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 18 | Oct 2023 – Aug 2026 | 0.052 mg/l 5 Aug 2026 |
| Turbidity 6396 | River water | 18 | Oct 2023 – Aug 2026 | 5.2 NTU 5 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Oct 2023 – Aug 2026 | 428 µS/cm 5 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Dec 2023 – Sep 2024 | below 0.004 µg/l 4 Sep 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 3 | Dec 2023 – Sep 2024 | below 0.005 µg/l 4 Sep 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Oct 2023 – Mar 2024 | 50 mg/l 4 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 18 | Oct 2023 – Aug 2026 | below 0.00107 mg/l 5 Aug 2026 |
| Arsenic, Dissolved 6045 | River water | 23 | Oct 2023 – Aug 2026 | below 1 µg/l 5 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 6 | Oct 2023 – Mar 2024 | 1.5 mg/l 4 Mar 2024 |
| Boron, Dissolved 9447 | River water | 23 | Oct 2023 – Aug 2026 | below 100 µg/l 5 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 23 | Oct 2023 – Aug 2026 | 0.022 µg/l 5 Aug 2026 |
| Calcium 0241 | River water | 12 | Oct 2023 – Jul 2026 | 30 mg/l 10 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 35 | Oct 2023 – Aug 2026 | 27 mg/l 5 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 34 | Oct 2023 – Aug 2026 | 4.2 mg/l 5 Aug 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 6 | Oct 2023 – Mar 2024 | 20 mg/l 4 Mar 2024 |
| Chloride 0172 | River water | 18 | Oct 2023 – Aug 2026 | 34 mg/l 5 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 16 | Oct 2023 – Aug 2026 | 13 µg/l 5 Aug 2026 |
| Chromium Hexavalent, Dissolved :- {Cr VI} 6619 | River water | 2 | Oct 2023 – Jan 2024 | 0.65 µg/l 3 Jan 2024 |
| Chromium, Dissolved 3409 | River water | 23 | Oct 2023 – Aug 2026 | below 0.5 µg/l 5 Aug 2026 |
| Copper : BLM Bioavailable 4821 | River water | 2 | Oct 2023 – Jan 2024 | 0.09 µg/l 3 Jan 2024 |
| Copper, Dissolved 6450 | River water | 23 | Oct 2023 – Aug 2026 | 2.1 µg/l 5 Aug 2026 |
| Hardness, Total as CaCO3 0158 | River water | 12 | Oct 2023 – Jul 2026 | 124 mg/l 10 Jul 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| Iron, Dissolved 6460 | River water | 23 | Oct 2023 – Aug 2026 | 380 µg/l 5 Aug 2026 |
| Lead : BLM Bioavailable 3377 | River water | 6 | Oct 2023 – Mar 2024 | 0.21 µg/l 4 Mar 2024 |
| Lead, Dissolved 0052 | River water | 23 | Oct 2023 – Aug 2026 | 0.42 µg/l 5 Aug 2026 |
| Magnesium 0237 | River water | 12 | Oct 2023 – Jul 2026 | 12 mg/l 10 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 6 | Oct 2023 – Mar 2024 | 8.5 mg/l 4 Mar 2024 |
| Manganese, Dissolved 6458 | River water | 23 | Oct 2023 – Aug 2026 | 89 µg/l 5 Aug 2026 |
| Mercury, Dissolved 0103 | River water | 23 | Oct 2023 – Aug 2026 | below 0.01 µg/l 5 Aug 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 34 | Oct 2023 – Aug 2026 | 2 µg/l 5 Aug 2026 |
| Nickel, Dissolved 3410 | River water | 35 | Oct 2023 – Aug 2026 | 3.1 µg/l 5 Aug 2026 |
| Nitrite as N 0118 | River water | 18 | Oct 2023 – Aug 2026 | 0.0073 mg/l 5 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 18 | Oct 2023 – Aug 2026 | 2 mg/l 5 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 3 | Dec 2023 – Sep 2024 | 0.0017 µg/l 4 Sep 2024 |
| Perfluorobutanoic acid 2995 | River water | 3 | Dec 2023 – Sep 2024 | 0.0027 µg/l 4 Sep 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| Perfluorodecanoic acid 8892 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Dec 2023 – Sep 2024 | below 0.005 µg/l 4 Sep 2024 |
| Perfluorododecanoic acid 8894 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluoroheptanoic acid 8889 | River water | 3 | Dec 2023 – Sep 2024 | 0.0017 µg/l 4 Sep 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 3 | Dec 2023 – Sep 2024 | 0.00095 µg/l 4 Sep 2024 |
| Perfluorohexanoic acid 8888 | River water | 3 | Dec 2023 – Sep 2024 | 0.0021 µg/l 4 Sep 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluorononanoic acid 8891 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 4 Sep 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 3 | Dec 2023 – Sep 2024 | 0.0042 µg/l 4 Sep 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 3 | Dec 2023 – Sep 2024 | 0.0071 µg/l 4 Sep 2024 |
| Perfluorooctanoic acid 8890 | River water | 3 | Dec 2023 – Sep 2024 | 0.006 µg/l 4 Sep 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 4 Sep 2024 |
| Perfluoropentanoic acid 8887 | River water | 3 | Dec 2023 – Sep 2024 | 0.0016 µg/l 4 Sep 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 3 | Dec 2023 – Sep 2024 | below 0.006 µg/l 4 Sep 2024 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Dec 2023 – Sep 2024 | below 0.005 µg/l 4 Sep 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Dec 2023 – Sep 2024 | below 0.004 µg/l 4 Sep 2024 |
| Perfluoroundecanoic acid 8893 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 4 Sep 2024 |
| Phosphorus, Total as P 0348 | River water | 18 | Oct 2023 – Aug 2026 | 0.078 mg/l 5 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 23 | Oct 2023 – Aug 2026 | 3.5 mg/l 5 Aug 2026 |
| Silica, reactive as SiO2 0182 | River water | 17 | Oct 2023 – Aug 2026 | 4.9 mg/l 5 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 23 | Oct 2023 – Aug 2026 | 30 mg/l 5 Aug 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 23 | Oct 2023 – Aug 2026 | 64 mg/l 5 Aug 2026 |
| Zinc 6455 | River water | 12 | Oct 2023 – Jul 2026 | 8.8 µg/l 10 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 27 | Oct 2023 – Aug 2026 | 5.1 µg/l 5 Aug 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.