← EA monitoring
Environment Agency monitoring point
LANGWORTHY BROOK @ HALSANGER WOOD
EA sampling point SW-RSN1502 · Lemon · 1,000 samples · 44 determinands · latest 2026-03-18
Alkalinity to pH 4.5 as CaCO3 (MILLIGRAM PER LITRE) over time
Samples — Alkalinity to pH 4.5 as CaCO3
| Date | Result | Unit | Purpose |
|---|---|---|---|
| 2026-03-18 13:01 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2026-02-03 10:24 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2026-01-20 09:56 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-12-09 13:59 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-11-13 13:18 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-10-09 08:52 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-09-12 13:24 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-08-15 11:54 | 13 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-07-16 14:36 | 13 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-06-18 10:24 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-05-14 10:23 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-04-16 10:56 | 8 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-03-05 12:39 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-02-18 10:57 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2025-01-20 10:02 | 8 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-12-16 14:15 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-11-20 10:36 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-10-14 09:51 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-09-26 10:02 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-08-29 10:40 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-07-24 11:00 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-06-13 10:16 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-05-08 13:35 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-04-08 12:46 | 8 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-03-19 12:51 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-02-14 11:56 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-01-08 11:14 | 8 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-12-07 11:48 | 5 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-11-09 11:04 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-10-05 14:31 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-09-19 13:12 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-08-29 13:22 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-07-31 15:05 | 19 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-06-09 14:14 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-05-10 16:03 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-03-13 12:39 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-02-09 10:30 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2023-01-27 14:48 | 7 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-12-08 12:39 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-11-04 11:03 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-10-06 09:49 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-09-15 12:11 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-08-11 12:27 | 15 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-07-15 13:00 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-06-13 13:01 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-05-19 15:07 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-04-13 11:16 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-03-14 11:42 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-02-25 10:45 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2022-01-06 10:45 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-12-02 12:14 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-11-09 12:19 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-10-13 12:47 | 12 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-09-23 11:10 | 13 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-08-04 10:52 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-06-23 22:58 | 11 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-04-23 11:48 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-03-18 11:28 | 9 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-03-02 12:16 | 10 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-02-16 13:56 | 7 | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
Source: Environment Agency Water Quality Archive (per-sample observations), Open Government Licence. Regulator monitoring — complements Friends of the Dart’s citizen sampling.