Environment Agency monitoring point

DENBURY STW FE

EA sampling point SW-70721478 · Am Brook · 192 samples · 3 determinands · latest 2026-04-10

Ammoniacal Nitrogen as N (MILLIGRAM PER LITRE) over time

Samples — Ammoniacal Nitrogen as N

Date	Result	Unit	Purpose
2026-04-10 08:00	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2026-03-02 09:30	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2026-02-16 11:40	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2026-01-13 08:55	0.4	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-12-04 07:20	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-11-07 08:20	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-10-20 07:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-09-09 08:55	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-08-14 07:55	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-07-30 08:23	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-06-12 11:00	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-05-16 07:20	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-04-22 08:40	0.5	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-03-09 09:00	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-02-11 08:25	0.67	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2025-01-29 08:40	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-11-23 08:10	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-10-29 11:30	2.9	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-10-24 07:50	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-09-12 13:21	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-08-07 12:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-07-04 12:00	1.24	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-06-05 12:55	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-05-12 08:40	2.6	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-04-18 11:41	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-03-21 07:40	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-02-07 09:37	0.59	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2024-01-22 11:05	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-11-27 12:07	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-11-20 10:05	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-10-16 12:02	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-09-25 11:25	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-09-07 12:10	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-08-04 12:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-06-22 12:20	5.09	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-05-21 09:30	0.44	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-04-20 11:54	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-03-15 11:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-02-03 12:05	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2023-01-23 13:10	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-12-05 11:17	0.75	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-11-08 11:53	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-10-17 12:18	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-09-15 10:07	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-08-05 10:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-07-07 12:00	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-06-08 13:00	0.83	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-05-22 09:35	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-04-21 09:44	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-03-17 11:55	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-02-04 11:40	6.6	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2022-01-24 13:40	1.9	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-12-06 12:42	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-11-09 12:03	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-10-18 13:08	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-09-16 12:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-08-06 09:55	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-07-14 11:15	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-06-09 11:45	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-05-23 09:00	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-04-22 09:20	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-03-18 10:40	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-02-04 11:05	—	MILLIGRAM PER LITRE	WATER QUALITY OPERATOR SELF MONITORING COMPLIANCE DATA
2021-01-25 11:05	—	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.