← EA monitoring
Environment Agency monitoring point
WRAY BROOK AT KNOWLE
EA sampling point SW-70641805 · Wray Brook · 396 samples · 12 determinands · latest 2025-03-25
Alkalinity to pH 4.5 as CaCO3 (MILLIGRAM PER LITRE) over time
Samples — Alkalinity to pH 4.5 as CaCO3
| Date | Result | Unit | Purpose |
|---|---|---|---|
| 2025-03-25 11:27 | 24 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2025-02-03 10:32 | 22 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2025-01-07 11:06 | 23 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-12-02 10:32 | 26 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-11-12 12:52 | 25 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-10-08 08:46 | 31 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-09-09 11:39 | 31 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-08-05 14:52 | 27 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-07-04 11:42 | 23 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-06-04 12:52 | 28 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-03-11 10:49 | 25 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-02-13 10:31 | 27 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2024-01-10 12:31 | 22 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-12-14 11:41 | 23 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-11-06 10:48 | 26 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-10-17 10:56 | 31 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-09-26 16:11 | 35 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-08-01 16:18 | 29 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-07-05 09:39 | 29 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-06-06 16:12 | 25 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-04-25 10:40 | 24 | MILLIGRAM PER LITRE | PLANNED INVESTIGATION (LOCAL MONITORING) |
| 2023-03-14 10:01 | 27 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2023-02-09 15:04 | 22 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2023-01-27 09:50 | 19 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-12-02 11:56 | 22 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-11-02 08:17 | 32 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-10-05 11:00 | 28 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-09-09 09:42 | 28 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-08-01 10:28 | 25 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-07-05 08:18 | 24 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-06-10 09:08 | 25 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-05-03 11:15 | 25 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
| 2022-04-01 10:36 | 22 | MILLIGRAM PER LITRE | ENVIRONMENTAL MONITORING STATUTORY (EU DIRECTIVES) |
Source: Environment Agency Water Quality Archive (per-sample observations), Open Government Licence. Regulator monitoring — complements Friends of the Dart’s citizen sampling.