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Environment Agency monitoring point
COMPTON AND MARLDON STW FE
EA sampling point SW-70611292 · Aller Brook · 248 samples · 6 determinands · latest 2026-04-10
BOD : 5 Day ATU (MILLIGRAM PER LITRE) over time
Samples — BOD : 5 Day ATU
| Date | Result | Unit | Purpose |
|---|---|---|---|
| 2026-04-10 08:20 | 8 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2026-04-09 09:00 | 4 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2026-03-02 09:00 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2026-02-17 13:00 | 5 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2026-02-16 11:40 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2026-01-12 11:00 | 6 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-12-04 08:15 | 4 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-11-21 08:30 | 4 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2025-11-06 08:45 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-10-20 08:25 | 5 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-09-09 11:10 | 12 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-08-14 08:40 | 9 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2025-08-13 10:15 | 9 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-07-30 09:00 | 8 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-06-12 10:05 | 26 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-05-16 08:45 | 9 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2025-05-15 09:40 | 10 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-04-22 09:10 | 12 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-03-09 10:35 | — | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2025-03-08 10:00 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-02-10 10:10 | 4 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2025-01-29 09:15 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-11-23 08:50 | 9 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-10-29 12:15 | 5 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2024-10-28 11:40 | 6 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-10-24 08:45 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-09-12 12:05 | 10 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-08-07 10:10 | 14 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2024-08-06 10:50 | 11 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-07-04 12:40 | 13 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-06-05 14:15 | 10 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-05-12 08:03 | 6 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2024-05-11 08:21 | 6 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-04-18 11:12 | 8 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-03-21 08:30 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-02-07 11:20 | 7 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2024-02-06 11:10 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2024-01-22 10:30 | 6 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-11-28 10:04 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-11-22 08:38 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-10-25 11:50 | 8 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2023-10-16 08:48 | 10 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-10-05 11:00 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-08-12 10:45 | 12 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-07-18 12:19 | 9 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2023-07-17 12:59 | 9 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-06-22 11:40 | 6 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-05-15 12:30 | 10 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-04-27 10:35 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-04-25 09:30 | 5 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2023-04-24 09:25 | 5 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-03-15 11:00 | 9 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2023-01-13 11:45 | — | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2023-01-12 11:40 | — | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-12-05 10:23 | 5 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-11-21 12:35 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-10-18 09:30 | 5 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2022-10-17 09:50 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-09-15 09:24 | 25 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-08-13 11:30 | 12 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-07-19 11:10 | 10 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2022-07-18 10:30 | 11 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-06-21 11:20 | 17 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-06-08 13:55 | 16 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-04-26 09:05 | 10 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2022-04-25 09:20 | 9 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-03-17 13:05 | 8 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-02-14 12:45 | 13 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2022-01-28 09:50 | 5 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2022-01-12 09:25 | 4 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-12-06 11:50 | 23 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-11-29 11:47 | 12 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-10-19 09:20 | 15 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2021-10-18 09:25 | 11 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-09-16 11:50 | 9 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-08-15 09:15 | 7 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2021-08-14 09:50 | 7 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-07-19 11:15 | 8 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-06-09 11:05 | 11 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-05-17 11:10 | 16 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-04-27 10:00 | 10 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2021-04-26 10:35 | 12 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-03-18 09:50 | 8 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-02-15 11:30 | 4 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
| 2021-01-14 10:15 | 6 | MILLIGRAM PER LITRE | WATER QUALITY UWWTD MONITORING DATA |
| 2021-01-13 10:25 | 4 | MILLIGRAM PER LITRE | WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA |
Source: Environment Agency Water Quality Archive (per-sample observations), Open Government Licence. Regulator monitoring — complements Friends of the Dart’s citizen sampling.