Polmorla Stream at Coronation Park
EA name: POLMORLA STREAM AT CORONATION PARK
Environment Agency sampling point SW-82518180 · 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
- 18 May 2026, 11:054 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 31 since 17 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 198548, 71924As published, to the nearest 1 m. Open in a map
- River, by its own name
- Polmorla Stream
- River, by the map
- Polmorla RiverPlaced on a river whose name partly matches its own, 147 m from the line. A tidal reach: water runs both ways, so no gauge order is claimed.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.1%
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 95.1 | 95.1% |
| 12 May 2026, 09:55 | 98.6 | 98.6% |
| 15 Apr 2026, 13:52 | 100.5 | 100.5% |
| 17 Mar 2026, 10:58 | 93.9 | 93.9% |
| 9 Mar 2026, 10:26 | 94.4 | 94.4% |
| 17 Feb 2026, 11:00 | 99.4 | 99.4% |
| 3 Feb 2026, 12:00 | 98 | 98% |
| 21 Jan 2026, 09:49 | 96.9 | 96.9% |
| 14 Jan 2026, 09:22 | 97.6 | 97.6% |
| 16 Dec 2025, 10:29 | 97.2 | 97.2% |
| 9 Dec 2025, 13:38 | 100 | 100% |
| 17 Nov 2025, 14:02 | 98.8 | 98.8% |
| 11 Nov 2025, 09:35 | 97.4 | 97.4% |
| 3 Mar 2025, 10:22 | 99.2 | 99.2% |
| 14 Feb 2025, 08:56 | 98.8 | 98.8% |
| 23 Jan 2025, 10:22 | 97.8 | 97.8% |
| 4 Dec 2024, 11:08 | 100 | 100% |
| 28 Nov 2024, 10:19 | 99.5 | 99.5% |
| 21 Oct 2024, 15:04 | 96.4 | 96.4% |
| 17 Sep 2024, 11:47 | 98.2 | 98.2% |
| 23 Aug 2024, 13:25 | 97.6 | 97.6% |
| 15 Jul 2024, 12:05 | 94.3 | 94.3% |
| 20 Jun 2024, 11:50 | 102.2 | 102.2% |
| 13 May 2024, 10:56 | 95.6 | 95.6% |
| 17 Apr 2024, 12:58 | 98.7 | 98.7% |
| 22 Mar 2024, 12:17 | 97.1 | 97.1% |
| 19 Feb 2024, 11:15 | 95.4 | 95.4% |
| 15 Jan 2024, 11:55 | 98.8 | 98.8% |
| 6 Dec 2023, 09:54 | 96.5 | 96.5% |
| 23 Nov 2023, 10:26 | 98.6 | 98.6% |
| 17 Oct 2023, 11:47 | 98.5 | 98.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.6 mg/l
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 10.6 | 10.6 mg/l |
| 12 May 2026, 09:55 | 10.9 | 10.9 mg/l |
| 15 Apr 2026, 13:52 | 10.6 | 10.6 mg/l |
| 17 Mar 2026, 10:58 | 10.5 | 10.5 mg/l |
| 9 Mar 2026, 10:26 | 10.5 | 10.5 mg/l |
| 17 Feb 2026, 11:00 | 11.5 | 11.5 mg/l |
| 3 Feb 2026, 12:00 | 10.9 | 10.9 mg/l |
| 21 Jan 2026, 09:49 | 11 | 11 mg/l |
| 14 Jan 2026, 09:22 | 11.6 | 11.6 mg/l |
| 16 Dec 2025, 10:29 | 10.7 | 10.7 mg/l |
| 9 Dec 2025, 13:38 | 10.7 | 10.7 mg/l |
| 17 Nov 2025, 14:02 | 10.8 | 10.8 mg/l |
| 11 Nov 2025, 09:35 | 10.3 | 10.3 mg/l |
| 3 Mar 2025, 10:22 | 12.1 | 12.1 mg/l |
| 14 Feb 2025, 08:56 | 12 | 12 mg/l |
| 23 Jan 2025, 10:22 | 11.7 | 11.7 mg/l |
| 4 Dec 2024, 11:08 | 11.1 | 11.1 mg/l |
| 28 Nov 2024, 10:19 | 11.1 | 11.1 mg/l |
| 21 Oct 2024, 15:04 | 10.1 | 10.1 mg/l |
| 17 Sep 2024, 11:47 | 10.4 | 10.4 mg/l |
| 23 Aug 2024, 13:25 | 9.59 | 9.59 mg/l |
| 15 Jul 2024, 12:05 | 9.67 | 9.67 mg/l |
| 20 Jun 2024, 11:50 | 10.3 | 10.3 mg/l |
| 13 May 2024, 10:56 | 10 | 10 mg/l |
| 17 Apr 2024, 12:58 | 10.9 | 10.9 mg/l |
| 22 Mar 2024, 12:17 | 10.6 | 10.6 mg/l |
| 19 Feb 2024, 11:15 | 10.4 | 10.4 mg/l |
| 15 Jan 2024, 11:55 | 11.8 | 11.8 mg/l |
| 6 Dec 2023, 09:54 | 11.1 | 11.1 mg/l |
| 23 Nov 2023, 10:26 | 10.7 | 10.7 mg/l |
| 17 Oct 2023, 11:47 | 10.5 | 10.5 mg/l |
Water temperature
code 0076 · °C
10.5 °C
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 10.5 | 10.5 °C |
| 12 May 2026, 09:55 | 10.7 | 10.7 °C |
| 15 Apr 2026, 13:52 | 13 | 13 °C |
| 17 Mar 2026, 10:58 | 10.3 | 10.3 °C |
| 9 Mar 2026, 10:26 | 10.6 | 10.6 °C |
| 17 Feb 2026, 11:00 | 8.8 | 8.8 °C |
| 3 Feb 2026, 12:00 | 10.4 | 10.4 °C |
| 21 Jan 2026, 09:49 | 9.6 | 9.6 °C |
| 14 Jan 2026, 09:22 | 7.8 | 7.8 °C |
| 16 Dec 2025, 10:29 | 11.1 | 11.1 °C |
| 9 Dec 2025, 13:38 | 12.4 | 12.4 °C |
| 17 Nov 2025, 14:02 | 11.1 | 11.1 °C |
| 11 Nov 2025, 09:35 | 12.6 | 12.6 °C |
| 3 Mar 2025, 10:22 | 6.7 | 6.7 °C |
| 14 Feb 2025, 08:56 | 6.8 | 6.8 °C |
| 23 Jan 2025, 10:22 | 7.5 | 7.5 °C |
| 4 Dec 2024, 11:08 | 10.5 | 10.5 °C |
| 28 Nov 2024, 10:19 | 10.3 | 10.3 °C |
| 21 Oct 2024, 15:04 | 13.2 | 13.2 °C |
| 17 Sep 2024, 11:47 | 12.6 | 12.6 °C |
| 23 Aug 2024, 13:25 | 16.1 | 16.1 °C |
| 15 Jul 2024, 12:05 | 14.1 | 14.1 °C |
| 20 Jun 2024, 11:50 | 15.1 | 15.1 °C |
| 13 May 2024, 10:56 | 13 | 13 °C |
| 17 Apr 2024, 12:58 | 10.8 | 10.8 °C |
| 22 Mar 2024, 12:17 | 11.2 | 11.2 °C |
| 19 Feb 2024, 11:15 | 11.4 | 11.4 °C |
| 15 Jan 2024, 11:55 | 7.6 | 7.6 °C |
| 6 Dec 2023, 09:54 | 9 | 9 °C |
| 23 Nov 2023, 10:26 | 11.8 | 11.8 °C |
| 17 Oct 2023, 11:47 | 12.2 | 12.2 °C |
pH
code 0061
7.73
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 7.73 | 7.73 |
| 12 May 2026, 09:55 | 7.93 | 7.93 |
| 15 Apr 2026, 13:52 | 8.2 | 8.2 |
| 17 Mar 2026, 10:58 | 7.86 | 7.86 |
| 9 Mar 2026, 10:26 | 7.84 | 7.84 |
| 17 Feb 2026, 11:00 | 7.85 | 7.85 |
| 3 Feb 2026, 12:00 | 8.05 | 8.05 |
| 21 Jan 2026, 09:49 | 7.86 | 7.86 |
| 14 Jan 2026, 09:22 | 7.95 | 7.95 |
| 16 Dec 2025, 10:29 | 7.74 | 7.74 |
| 9 Dec 2025, 13:38 | 7.64 | 7.64 |
| 17 Nov 2025, 14:02 | 7.85 | 7.85 |
| 11 Nov 2025, 09:35 | 7.85 | 7.85 |
| 3 Mar 2025, 10:22 | 7.94 | 7.94 |
| 14 Feb 2025, 08:56 | 7.75 | 7.75 |
| 23 Jan 2025, 10:22 | 7.78 | 7.78 |
| 4 Dec 2024, 11:08 | 7.8 | 7.8 |
| 28 Nov 2024, 10:19 | 7.81 | 7.81 |
| 21 Oct 2024, 15:04 | 7.82 | 7.82 |
| 17 Sep 2024, 11:47 | 7.91 | 7.91 |
| 23 Aug 2024, 13:25 | 7.75 | 7.75 |
| 15 Jul 2024, 12:05 | 7.7 | 7.7 |
| 20 Jun 2024, 11:50 | 8.02 | 8.02 |
| 13 May 2024, 10:56 | 7.92 | 7.92 |
| 17 Apr 2024, 12:58 | 7.96 | 7.96 |
| 22 Mar 2024, 12:17 | 7.9 | 7.9 |
| 19 Feb 2024, 11:15 | 7.77 | 7.77 |
| 15 Jan 2024, 11:55 | 7.86 | 7.86 |
| 6 Dec 2023, 09:54 | 7.53 | 7.53 |
| 23 Nov 2023, 10:26 | 7.57 | 7.57 |
| 17 Oct 2023, 11:47 | 7.89 | 7.89 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.046 mg/l
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 0.046 | 0.046 mg/l |
| 12 May 2026, 09:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2026, 13:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Mar 2026, 10:58 | 0.086 | 0.086 mg/l |
| 9 Mar 2026, 10:26 | 0.067 | 0.067 mg/l |
| 17 Feb 2026, 11:00 | 0.12 | 0.12 mg/l |
| 3 Feb 2026, 12:00 | 0.066 | 0.066 mg/l |
| 21 Jan 2026, 09:49 | 0.12 | 0.12 mg/l |
| 14 Jan 2026, 09:22 | 0.031 | 0.031 mg/l |
| 16 Dec 2025, 10:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Dec 2025, 13:38 | 0.087 | 0.087 mg/l |
| 17 Nov 2025, 14:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Nov 2025, 09:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 10:22 | 0.048 | 0.048 mg/l |
| 14 Feb 2025, 08:56 | 0.048 | 0.048 mg/l |
| 23 Jan 2025, 10:22 | 0.065 | 0.065 mg/l |
| 4 Dec 2024, 11:08 | 0.043 | 0.043 mg/l |
| 28 Nov 2024, 10:19 | 0.078 | 0.078 mg/l |
| 21 Oct 2024, 15:04 | 0.078 | 0.078 mg/l |
| 17 Sep 2024, 11:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Aug 2024, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jul 2024, 12:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jun 2024, 11:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2024, 10:56 | 0.061 | 0.061 mg/l |
| 17 Apr 2024, 12:58 | 0.034 | 0.034 mg/l |
| 22 Mar 2024, 12:17 | 1.3 | 1.3 mg/l |
| 19 Feb 2024, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jan 2024, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Dec 2023, 09:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Nov 2023, 10:26 | 0.037 | 0.037 mg/l |
| 17 Oct 2023, 11:47 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.79 mg/l
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 5.79 | 5.79 mg/l |
| 12 May 2026, 09:55 | 7.29 | 7.29 mg/l |
| 15 Apr 2026, 13:52 | 7.38 | 7.38 mg/l |
| 17 Mar 2026, 10:58 | 8.27 | 8.27 mg/l |
| 9 Mar 2026, 10:26 | 8.48 | 8.48 mg/l |
| 17 Feb 2026, 11:00 | 8.78 | 8.78 mg/l |
| 3 Feb 2026, 12:00 | 9.48 | 9.48 mg/l |
| 21 Jan 2026, 09:49 | 8.18 | 8.18 mg/l |
| 14 Jan 2026, 09:22 | 11 | 11 mg/l |
| 16 Dec 2025, 10:29 | 12 | 12 mg/l |
| 9 Dec 2025, 13:38 | 8.89 | 8.89 mg/l |
| 17 Nov 2025, 14:02 | 12 | 12 mg/l |
| 11 Nov 2025, 09:35 | 9.99 | 9.99 mg/l |
| 3 Mar 2025, 10:22 | 9.49 | 9.49 mg/l |
| 14 Feb 2025, 08:56 | 9.09 | 9.09 mg/l |
| 23 Jan 2025, 10:22 | 7.29 | 7.29 mg/l |
| 4 Dec 2024, 11:08 | 9.89 | 9.89 mg/l |
| 28 Nov 2024, 10:19 | 9.78 | 9.78 mg/l |
| 21 Oct 2024, 15:04 | 8.68 | 8.68 mg/l |
| 17 Sep 2024, 11:47 | 5.9 | 5.9 mg/l |
| 23 Aug 2024, 13:25 | 6 | 6 mg/l |
| 15 Jul 2024, 12:05 | 5.79 | 5.79 mg/l |
| 20 Jun 2024, 11:50 | 8 | 8 mg/l |
| 13 May 2024, 10:56 | 6.98 | 6.98 mg/l |
| 17 Apr 2024, 12:58 | 8.79 | 8.79 mg/l |
| 22 Mar 2024, 12:17 | 8.57 | 8.57 mg/l |
| 19 Feb 2024, 11:15 | 9.39 | 9.39 mg/l |
| 15 Jan 2024, 11:55 | 9.99 | 9.99 mg/l |
| 6 Dec 2023, 09:54 | 12 | 12 mg/l |
| 23 Nov 2023, 10:26 | 11 | 11 mg/l |
| 17 Oct 2023, 11:47 | 10 | 10 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.036 mg/l
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 0.036 | 0.036 mg/l |
| 12 May 2026, 09:55 | 0.045 | 0.045 mg/l |
| 15 Apr 2026, 13:52 | 0.036 | 0.036 mg/l |
| 17 Mar 2026, 10:58 | 0.046 | 0.046 mg/l |
| 9 Mar 2026, 10:26 | 0.039 | 0.039 mg/l |
| 17 Feb 2026, 11:00 | 0.046 | 0.046 mg/l |
| 3 Feb 2026, 12:00 | 0.04 | 0.04 mg/l |
| 21 Jan 2026, 09:49 | 0.061 | 0.061 mg/l |
| 14 Jan 2026, 09:22 | 0.034 | 0.034 mg/l |
| 16 Dec 2025, 10:29 | 0.038 | 0.038 mg/l |
| 9 Dec 2025, 13:38 | 0.073 | 0.073 mg/l |
| 17 Nov 2025, 14:02 | 0.036 | 0.036 mg/l |
| 11 Nov 2025, 09:35 | 0.032 | 0.032 mg/l |
| 3 Mar 2025, 10:22 | 0.035 | 0.035 mg/l |
| 14 Feb 2025, 08:56 | 0.039 | 0.039 mg/l |
| 23 Jan 2025, 10:22 | 0.064 | 0.064 mg/l |
| 4 Dec 2024, 11:08 | 0.034 | 0.034 mg/l |
| 28 Nov 2024, 10:19 | 0.051 | 0.051 mg/l |
| 21 Oct 2024, 15:04 | 0.048 | 0.048 mg/l |
| 17 Sep 2024, 11:47 | 0.046 | 0.046 mg/l |
| 23 Aug 2024, 13:25 | 0.047 | 0.047 mg/l |
| 15 Jul 2024, 12:05 | 0.063 | 0.063 mg/l |
| 20 Jun 2024, 11:50 | 0.043 | 0.043 mg/l |
| 13 May 2024, 10:56 | 0.07 | 0.07 mg/l |
| 17 Apr 2024, 12:58 | 0.033 | 0.033 mg/l |
| 22 Mar 2024, 12:17 | 0.14 | 0.14 mg/l |
| 19 Feb 2024, 11:15 | 0.032 | 0.032 mg/l |
| 15 Jan 2024, 11:55 | 0.03 | 0.03 mg/l |
| 6 Dec 2023, 09:54 | 0.026 | 0.026 mg/l |
| 23 Nov 2023, 10:26 | 0.03 | 0.03 mg/l |
| 17 Oct 2023, 11:47 | 0.024 | 0.024 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
326 µS/cm
Sampled 18 May 2026, 4 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:05 | 326 | 326 µS/cm |
| 12 May 2026, 09:55 | 348 | 348 µS/cm |
| 15 Apr 2026, 13:52 | 328 | 328 µS/cm |
| 17 Mar 2026, 10:58 | 356 | 356 µS/cm |
| 9 Mar 2026, 10:26 | 356 | 356 µS/cm |
| 17 Feb 2026, 11:00 | 369 | 369 µS/cm |
| 3 Feb 2026, 12:00 | 376 | 376 µS/cm |
| 21 Jan 2026, 09:49 | 355 | 355 µS/cm |
| 14 Jan 2026, 09:22 | 394 | 394 µS/cm |
| 16 Dec 2025, 10:29 | 399 | 399 µS/cm |
| 9 Dec 2025, 13:38 | 344 | 344 µS/cm |
| 17 Nov 2025, 14:02 | 403 | 403 µS/cm |
| 11 Nov 2025, 09:35 | 375 | 375 µS/cm |
| 3 Mar 2025, 10:22 | 383 | 383 µS/cm |
| 14 Feb 2025, 08:56 | 357 | 357 µS/cm |
| 23 Jan 2025, 10:22 | 325 | 325 µS/cm |
| 4 Dec 2024, 11:08 | 381 | 381 µS/cm |
| 28 Nov 2024, 10:19 | 385 | 385 µS/cm |
| 21 Oct 2024, 15:04 | 369 | 369 µS/cm |
| 17 Sep 2024, 11:47 | 343 | 343 µS/cm |
| 23 Aug 2024, 13:25 | 347 | 347 µS/cm |
| 15 Jul 2024, 12:05 | 324 | 324 µS/cm |
| 20 Jun 2024, 11:50 | 361 | 361 µS/cm |
| 13 May 2024, 10:56 | 328 | 328 µS/cm |
| 17 Apr 2024, 12:58 | 358 | 358 µS/cm |
| 22 Mar 2024, 12:17 | 384 | 384 µS/cm |
| 19 Feb 2024, 11:15 | 384 | 384 µS/cm |
| 15 Jan 2024, 11:55 | 430 | 430 µS/cm |
| 6 Dec 2023, 09:54 | 406 | 406 µS/cm |
| 23 Nov 2023, 10:26 | 395 | 395 µS/cm |
| 17 Oct 2023, 11:47 | 383 | 383 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – May 2026 | 95.1% 18 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – May 2026 | 10.6 mg/l 18 May 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – May 2026 | 10.5 °C 18 May 2026 |
| pH 0061 | River water | 31 | Oct 2023 – May 2026 | 7.73 18 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – May 2026 | 0.046 mg/l 18 May 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – May 2026 | 5.79 mg/l 18 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – May 2026 | 0.036 mg/l 18 May 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – May 2026 | 326 µS/cm 18 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – May 2026 | 82 mg/l 18 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – May 2026 | 0.00047 mg/l 18 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Feb 2024 – May 2026 | 1.9 mg/l 18 May 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – May 2026 | 0.012 mg/l 18 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – May 2026 | 5.8 mg/l 18 May 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.