Otford Gauging Station

EA name: OTFORD GAUGING STATION (also listed as “RIVER DARENT AT OTFORD GAUGING STATION”)
Environment Agency sampling point SO-E0000135 · 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: 14 Sep 2026, 11:4517 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked: 126 since 5 Apr 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
Latest sample: River / running surface water Monitoring (UK govt policy - not GQA or RE)
Where: National Grid 552500, 158400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
River, by its own name: Darent
River, by the map: River DarentPlaced on the river its name gives, 5 m from the line.
Next gauge downstream: Hawley On the River Darent · 19 km along the river (the path rests on a repair to the map)HAWLEY GS 19 km along the river (the path rests on a repair to the map)Beside Otford: too close to say above or below.
Nearest gauge upstream: Park Farm On the River Darent · 9.2 km along the river
Why it was sampled: Monitoring (UK govt policy - not GQA or RE) (124 samples)
Monitoring (national agency policy) (2 samples)

Main measurements, river water

Water temperature

code 0076 · °C

19 °C

Sampled 14 Sep 2026, 17 days ago · 115 results banked

Every result (115)

Sampled	Result as published	Reads as
14 Sep 2026, 11:45	19	19 °C
4 Sep 2026, 12:44	19.7	19.7 °C
27 Aug 2026, 10:04	19.5	19.5 °C
18 Aug 2026, 10:38	20.8	20.8 °C
13 Aug 2026, 12:40	22.3	22.3 °C
4 Aug 2026, 13:22	22.9	22.9 °C
30 Jul 2026, 12:19	22.2	22.2 °C
20 Jul 2026, 12:34	19.8	19.8 °C
14 Jul 2026, 10:04	20.7	20.7 °C
9 Jul 2026, 09:31	22.3	22.3 °C
3 Jul 2026, 09:57	19.3	19.3 °C
22 Jun 2026, 13:22	23.2	23.2 °C
16 Jun 2026, 13:44	19.6	19.6 °C
8 Jun 2026, 12:43	16.6	16.6 °C
2 Jun 2026, 09:40	18.4	18.4 °C
27 May 2026, 10:58	21.6	21.6 °C
19 May 2026, 10:09	13.7	13.7 °C
13 May 2026, 09:43	13	13 °C
7 May 2026, 11:24	14.7	14.7 °C
21 Apr 2026, 11:50	13.3	13.3 °C
17 Apr 2026, 10:47	13	13 °C
13 Apr 2026, 13:49	12.6	12.6 °C
10 Apr 2026, 13:43	12.8	12.8 °C
24 Mar 2026, 10:02	10.5	10.5 °C
16 Mar 2026, 14:19	9.9	9.9 °C
9 Mar 2026, 10:32	9.3	9.3 °C
4 Mar 2026, 13:38	10	10 °C
24 Feb 2026, 09:37	9.2	9.2 °C
17 Feb 2026, 10:58	6.5	6.5 °C
12 Feb 2026, 15:06	8.4	8.4 °C
3 Feb 2026, 10:24	6.3	6.3 °C
27 Jan 2026, 08:44	6.4	6.4 °C
19 Jan 2026, 11:50	6.8	6.8 °C
14 Jan 2026, 14:25	5.2	5.2 °C
2 Jan 2026, 13:02	4.8	4.8 °C
22 Dec 2025, 10:32	8.5	8.5 °C
17 Dec 2025, 11:09	7.9	7.9 °C
11 Dec 2025, 10:44	8.4	8.4 °C
3 Dec 2025, 14:02	8	8 °C
24 Nov 2025, 10:27	7.5	7.5 °C
17 Nov 2025, 10:35	9.3	9.3 °C
10 Nov 2025, 09:50	11.9	11.9 °C
6 Nov 2025, 15:06	12.9	12.9 °C
29 Oct 2025, 10:02	11.5	11.5 °C
22 Oct 2025, 12:33	13.4	13.4 °C
14 Oct 2025, 13:26	13.7	13.7 °C
6 Oct 2025, 09:58	13.1	13.1 °C
3 Oct 2025, 11:27	14.3	14.3 °C
23 Sep 2025, 10:16	13.2	13.2 °C
16 Sep 2025, 10:44	15.5	15.5 °C
11 Sep 2025, 08:00	16.1	16.1 °C
2 Sep 2025, 13:00	17.7	17.7 °C
29 Aug 2025, 08:05	17.5	17.5 °C
21 Aug 2025, 09:33	17.8	17.8 °C
13 Aug 2025, 15:14	21.8	21.8 °C
6 Aug 2025, 14:58	19.8	19.8 °C
22 Jul 2025, 09:42	20.4	20.4 °C
15 Jul 2025, 11:25	20.6	20.6 °C
8 Jul 2025, 11:33	19.5	19.5 °C
3 Jul 2025, 12:01	21.6	21.6 °C
24 Jun 2025, 14:48	21	21 °C
16 Jun 2025, 09:38	19.2	19.2 °C
9 Jun 2025, 11:07	16.6	16.6 °C
4 Jun 2025, 14:48	17.1	17.1 °C
27 May 2025, 15:05	15.8	15.8 °C
23 May 2025, 11:43	15.4	15.4 °C
13 May 2025, 10:25	17.2	17.2 °C
7 May 2025, 13:40	14.8	14.8 °C
2 May 2025, 09:15	16.9	16.9 °C
23 Apr 2025, 15:31	13	13 °C
15 Apr 2025, 11:31	12.6	12.6 °C
10 Apr 2025, 15:32	12.8	12.8 °C
3 Apr 2025, 08:51	10.7	10.7 °C
25 Mar 2025, 11:58	10.7	10.7 °C
17 Mar 2025, 12:42	7.6	7.6 °C
14 Mar 2025, 12:57	7.9	7.9 °C
4 Mar 2025, 11:34	6.9	6.9 °C
24 Feb 2025, 12:32	8.5	8.5 °C
17 Feb 2025, 14:18	5.4	5.4 °C
12 Feb 2025, 10:17	5.1	5.1 °C
5 Feb 2025, 14:23	5.8	5.8 °C
30 Jan 2025, 12:25	5.7	5.7 °C
27 Jan 2025, 11:49	6.2	6.2 °C
21 Jan 2025, 14:38	5.4	5.4 °C
15 Jan 2025, 11:07	6.4	6.4 °C
9 Jan 2025, 11:04	4.9	4.9 °C
16 Dec 2024, 11:13	8.2	8.2 °C
9 Dec 2024, 12:08	7.7	7.7 °C
3 Dec 2024, 09:51	8.2	8.2 °C
27 Nov 2024, 10:05	9.4	9.4 °C
18 Nov 2024, 10:06	9.8	9.8 °C
11 Nov 2024, 10:18	11	11 °C
5 Nov 2024, 09:04	12	12 °C
30 Oct 2024, 11:58	13.2	13.2 °C
22 Oct 2024, 10:33	12.3	12.3 °C
17 Oct 2024, 09:45	14.1	14.1 °C
9 Oct 2024, 12:14	14.4	14.4 °C
2 Oct 2024, 13:35	14.6	14.6 °C
24 Sep 2024, 11:01	16.4	16.4 °C
16 Sep 2024, 13:08	16.2	16.2 °C
9 Sep 2024, 13:04	17.2	17.2 °C
3 Sep 2024, 08:09	19	19 °C
29 Aug 2024, 09:40	18.1	18.1 °C
19 Aug 2024, 09:40	18.9	18.9 °C
12 Aug 2024, 11:45	22.8	22.8 °C
6 Aug 2024, 13:58	21.3	21.3 °C
31 Jul 2024, 13:48	22.3	22.3 °C
22 Jul 2024, 09:45	19.5	19.5 °C
15 Jul 2024, 10:56	18.3	18.3 °C
8 Jul 2024, 10:16	17	17 °C
4 Jul 2024, 09:59	17	17 °C
24 Jun 2024, 09:54	19.2	19.2 °C
19 Jun 2024, 10:32	16.2	16.2 °C
12 Jun 2024, 11:07	15.7	15.7 °C
6 Jun 2024, 09:22	16.1	16.1 °C

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 14 Sep 2026, 17 days ago · 113 results banked

Every result (113)

Sampled	Result as published	Reads as
14 Sep 2026, 11:45	<0.03	below 0.03 mg/l (not detected above this)
4 Sep 2026, 12:44	<0.03	below 0.03 mg/l (not detected above this)
27 Aug 2026, 10:04	0.21	0.21 mg/l
18 Aug 2026, 10:38	<0.03	below 0.03 mg/l (not detected above this)
13 Aug 2026, 12:40	<0.03	below 0.03 mg/l (not detected above this)
4 Aug 2026, 13:22	<0.03	below 0.03 mg/l (not detected above this)
30 Jul 2026, 12:19	<0.03	below 0.03 mg/l (not detected above this)
20 Jul 2026, 12:34	<0.03	below 0.03 mg/l (not detected above this)
14 Jul 2026, 10:04	<0.03	below 0.03 mg/l (not detected above this)
9 Jul 2026, 09:31	<0.03	below 0.03 mg/l (not detected above this)
3 Jul 2026, 09:57	<0.03	below 0.03 mg/l (not detected above this)
22 Jun 2026, 13:22	<0.03	below 0.03 mg/l (not detected above this)
16 Jun 2026, 13:44	0.033	0.033 mg/l
8 Jun 2026, 12:43	0.044	0.044 mg/l
2 Jun 2026, 09:40	0.22	0.22 mg/l
27 May 2026, 10:58	0.037	0.037 mg/l
19 May 2026, 10:09	<0.03	below 0.03 mg/l (not detected above this)
13 May 2026, 09:43	0.058	0.058 mg/l
7 May 2026, 11:24	0.057	0.057 mg/l
21 Apr 2026, 11:50	0.048	0.048 mg/l
17 Apr 2026, 10:47	0.048	0.048 mg/l
13 Apr 2026, 13:49	0.064	0.064 mg/l
10 Apr 2026, 13:43	0.042	0.042 mg/l
24 Mar 2026, 10:02	0.04	0.04 mg/l
16 Mar 2026, 14:19	0.067	0.067 mg/l
9 Mar 2026, 10:32	0.055	0.055 mg/l
4 Mar 2026, 13:38	0.086	0.086 mg/l
24 Feb 2026, 09:37	0.08	0.08 mg/l
17 Feb 2026, 10:58	0.067	0.067 mg/l
12 Feb 2026, 15:06	0.078	0.078 mg/l
3 Feb 2026, 10:24	0.077	0.077 mg/l
27 Jan 2026, 08:44	0.075	0.075 mg/l
19 Jan 2026, 11:50	0.1	0.1 mg/l
14 Jan 2026, 14:25	0.046	0.046 mg/l
2 Jan 2026, 13:02	0.14	0.14 mg/l
22 Dec 2025, 10:32	0.086	0.086 mg/l
17 Dec 2025, 11:09	0.061	0.061 mg/l
11 Dec 2025, 10:44	0.094	0.094 mg/l
3 Dec 2025, 14:02	0.094	0.094 mg/l
24 Nov 2025, 10:27	0.078	0.078 mg/l
17 Nov 2025, 10:35	0.062	0.062 mg/l
10 Nov 2025, 09:50	<0.03	below 0.03 mg/l (not detected above this)
6 Nov 2025, 15:06	0.039	0.039 mg/l
29 Oct 2025, 10:02	0.057	0.057 mg/l
22 Oct 2025, 12:33	0.056	0.056 mg/l
14 Oct 2025, 13:26	0.038	0.038 mg/l
6 Oct 2025, 09:58	0.042	0.042 mg/l
3 Oct 2025, 11:27	<0.03	below 0.03 mg/l (not detected above this)
23 Sep 2025, 10:16	0.034	0.034 mg/l
16 Sep 2025, 10:44	<0.03	below 0.03 mg/l (not detected above this)
11 Sep 2025, 08:00	0.085	0.085 mg/l
2 Sep 2025, 13:00	0.048	0.048 mg/l
29 Aug 2025, 08:05	0.054	0.054 mg/l
21 Aug 2025, 09:33	<0.03	below 0.03 mg/l (not detected above this)
13 Aug 2025, 15:14	<0.03	below 0.03 mg/l (not detected above this)
6 Aug 2025, 14:58	<0.03	below 0.03 mg/l (not detected above this)
22 Jul 2025, 09:42	0.042	0.042 mg/l
15 Jul 2025, 11:25	<0.03	below 0.03 mg/l (not detected above this)
8 Jul 2025, 11:33	0.077	0.077 mg/l
3 Jul 2025, 12:01	<0.03	below 0.03 mg/l (not detected above this)
24 Jun 2025, 14:48	<0.03	below 0.03 mg/l (not detected above this)
16 Jun 2025, 09:38	<0.03	below 0.03 mg/l (not detected above this)
9 Jun 2025, 11:07	0.054	0.054 mg/l
4 Jun 2025, 14:48	0.047	0.047 mg/l
27 May 2025, 15:05	<0.03	below 0.03 mg/l (not detected above this)
23 May 2025, 11:43	0.06	0.06 mg/l
13 May 2025, 10:25	0.088	0.088 mg/l
7 May 2025, 13:40	0.072	0.072 mg/l
2 May 2025, 09:15	0.07	0.07 mg/l
23 Apr 2025, 15:31	0.093	0.093 mg/l
15 Apr 2025, 11:31	0.17	0.17 mg/l
10 Apr 2025, 15:32	0.049	0.049 mg/l
3 Apr 2025, 08:51	0.062	0.062 mg/l
25 Mar 2025, 11:58	0.035	0.035 mg/l
17 Mar 2025, 12:42	0.041	0.041 mg/l
14 Mar 2025, 12:57	0.045	0.045 mg/l
4 Mar 2025, 11:34	0.06	0.06 mg/l
24 Feb 2025, 12:32	0.096	0.096 mg/l
17 Feb 2025, 14:18	0.078	0.078 mg/l
12 Feb 2025, 10:17	0.084	0.084 mg/l
5 Feb 2025, 14:23	0.082	0.082 mg/l
27 Jan 2025, 11:49	0.068	0.068 mg/l
21 Jan 2025, 14:38	0.12	0.12 mg/l
15 Jan 2025, 11:07	0.11	0.11 mg/l
9 Jan 2025, 11:04	0.11	0.11 mg/l
16 Dec 2024, 11:13	0.083	0.083 mg/l
3 Dec 2024, 09:51	0.1	0.1 mg/l
27 Nov 2024, 10:05	0.077	0.077 mg/l
18 Nov 2024, 10:06	0.11	0.11 mg/l
11 Nov 2024, 10:18	0.055	0.055 mg/l
5 Nov 2024, 09:04	0.067	0.067 mg/l
30 Oct 2024, 11:58	0.045	0.045 mg/l
22 Oct 2024, 10:33	0.044	0.044 mg/l
17 Oct 2024, 09:45	0.041	0.041 mg/l
9 Oct 2024, 12:14	0.059	0.059 mg/l
2 Oct 2024, 13:35	0.067	0.067 mg/l
24 Sep 2024, 11:01	0.06	0.06 mg/l
16 Sep 2024, 13:08	0.053	0.053 mg/l
9 Sep 2024, 13:04	0.085	0.085 mg/l
3 Sep 2024, 08:09	0.038	0.038 mg/l
29 Aug 2024, 09:40	0.035	0.035 mg/l
19 Aug 2024, 09:40	<0.03	below 0.03 mg/l (not detected above this)
12 Aug 2024, 11:45	0.041	0.041 mg/l
6 Aug 2024, 13:58	0.053	0.053 mg/l
31 Jul 2024, 13:48	0.041	0.041 mg/l
22 Jul 2024, 09:45	0.046	0.046 mg/l
15 Jul 2024, 10:56	0.043	0.043 mg/l
8 Jul 2024, 10:16	0.054	0.054 mg/l
4 Jul 2024, 09:59	0.056	0.056 mg/l
24 Jun 2024, 09:54	0.052	0.052 mg/l
19 Jun 2024, 10:32	0.05	0.05 mg/l
12 Jun 2024, 11:07	0.06	0.06 mg/l
6 Jun 2024, 09:22	0.064	0.064 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

1.09 mg/l

Sampled 14 Sep 2026, 17 days ago · 113 results banked

Every result (113)

Sampled	Result as published	Reads as
14 Sep 2026, 11:45	1.09	1.09 mg/l
4 Sep 2026, 12:44	0.955	0.955 mg/l
27 Aug 2026, 10:04	1.18	1.18 mg/l
18 Aug 2026, 10:38	1.09	1.09 mg/l
13 Aug 2026, 12:40	1.09	1.09 mg/l
4 Aug 2026, 13:22	1.2	1.2 mg/l
30 Jul 2026, 12:19	1.49	1.49 mg/l
20 Jul 2026, 12:34	1.6	1.6 mg/l
14 Jul 2026, 10:04	1.7	1.7 mg/l
9 Jul 2026, 09:31	1.89	1.89 mg/l
3 Jul 2026, 09:57	2.09	2.09 mg/l
22 Jun 2026, 13:22	2.37	2.37 mg/l
16 Jun 2026, 13:44	2.47	2.47 mg/l
8 Jun 2026, 12:43	2.77	2.77 mg/l
2 Jun 2026, 09:40	2.45	2.45 mg/l
27 May 2026, 10:58	3.05	3.05 mg/l
19 May 2026, 10:09	3.07	3.07 mg/l
13 May 2026, 09:43	3.27	3.27 mg/l
7 May 2026, 11:24	3.26	3.26 mg/l
21 Apr 2026, 11:50	3.57	3.57 mg/l
17 Apr 2026, 10:47	3.47	3.47 mg/l
13 Apr 2026, 13:49	3.27	3.27 mg/l
10 Apr 2026, 13:43	3.67	3.67 mg/l
24 Mar 2026, 10:02	3.78	3.78 mg/l
16 Mar 2026, 14:19	3.78	3.78 mg/l
9 Mar 2026, 10:32	3.88	3.88 mg/l
4 Mar 2026, 13:38	3.88	3.88 mg/l
24 Feb 2026, 09:37	3.68	3.68 mg/l
17 Feb 2026, 10:58	3.39	3.39 mg/l
12 Feb 2026, 15:06	3.38	3.38 mg/l
3 Feb 2026, 10:24	3.47	3.47 mg/l
27 Jan 2026, 08:44	2.77	2.77 mg/l
19 Jan 2026, 11:50	3.35	3.35 mg/l
14 Jan 2026, 14:25	3.24	3.24 mg/l
2 Jan 2026, 13:02	3.15	3.15 mg/l
22 Dec 2025, 10:32	2.96	2.96 mg/l
17 Dec 2025, 11:09	3.16	3.16 mg/l
11 Dec 2025, 10:44	2.65	2.65 mg/l
3 Dec 2025, 14:02	2.96	2.96 mg/l
24 Nov 2025, 10:27	2.76	2.76 mg/l
17 Nov 2025, 10:35	1.96	1.96 mg/l
10 Nov 2025, 09:50	1.67	1.67 mg/l
6 Nov 2025, 15:06	1.76	1.76 mg/l
29 Oct 2025, 10:02	1.47	1.47 mg/l
22 Oct 2025, 12:33	1.47	1.47 mg/l
14 Oct 2025, 13:26	1.18	1.18 mg/l
6 Oct 2025, 09:58	1.08	1.08 mg/l
3 Oct 2025, 11:27	1.29	1.29 mg/l
23 Sep 2025, 10:16	1.28	1.28 mg/l
16 Sep 2025, 10:44	1.18	1.18 mg/l
11 Sep 2025, 08:00	1.18	1.18 mg/l
2 Sep 2025, 13:00	1.38	1.38 mg/l
29 Aug 2025, 08:05	1.38	1.38 mg/l
21 Aug 2025, 09:33	1.49	1.49 mg/l
13 Aug 2025, 15:14	1.49	1.49 mg/l
6 Aug 2025, 14:58	1.58	1.58 mg/l
22 Jul 2025, 09:42	1.88	1.88 mg/l
15 Jul 2025, 11:25	1.99	1.99 mg/l
8 Jul 2025, 11:33	2.17	2.17 mg/l
3 Jul 2025, 12:01	2.38	2.38 mg/l
24 Jun 2025, 14:48	2.48	2.48 mg/l
16 Jun 2025, 09:38	2.86	2.86 mg/l
9 Jun 2025, 11:07	2.86	2.86 mg/l
4 Jun 2025, 14:48	3.15	3.15 mg/l
27 May 2025, 15:05	3.27	3.27 mg/l
23 May 2025, 11:43	3.56	3.56 mg/l
13 May 2025, 10:25	3.56	3.56 mg/l
7 May 2025, 13:40	3.87	3.87 mg/l
2 May 2025, 09:15	3.77	3.77 mg/l
23 Apr 2025, 15:31	3.67	3.67 mg/l
15 Apr 2025, 11:31	4.07	4.07 mg/l
10 Apr 2025, 15:32	4.08	4.08 mg/l
3 Apr 2025, 08:51	3.78	3.78 mg/l
25 Mar 2025, 11:58	4.48	4.48 mg/l
17 Mar 2025, 12:42	4.48	4.48 mg/l
14 Mar 2025, 12:57	4.58	4.58 mg/l
4 Mar 2025, 11:34	4.58	4.58 mg/l
24 Feb 2025, 12:32	3.18	3.18 mg/l
17 Feb 2025, 14:18	4.57	4.57 mg/l
12 Feb 2025, 10:17	4.27	4.27 mg/l
5 Feb 2025, 14:23	4.57	4.57 mg/l
27 Jan 2025, 11:49	3.68	3.68 mg/l
21 Jan 2025, 14:38	4.37	4.37 mg/l
15 Jan 2025, 11:07	4.38	4.38 mg/l
9 Jan 2025, 11:04	3.58	3.58 mg/l
16 Dec 2024, 11:13	3.76	3.76 mg/l
3 Dec 2024, 09:51	3.12	3.12 mg/l
27 Nov 2024, 10:05	2.46	2.46 mg/l
18 Nov 2024, 10:06	3.23	3.23 mg/l
11 Nov 2024, 10:18	3.14	3.14 mg/l
5 Nov 2024, 09:04	2.94	2.94 mg/l
30 Oct 2024, 11:58	2.85	2.85 mg/l
22 Oct 2024, 10:33	3.06	3.06 mg/l
17 Oct 2024, 09:45	2.96	2.96 mg/l
9 Oct 2024, 12:14	2.75	2.75 mg/l
2 Oct 2024, 13:35	2.46	2.46 mg/l
24 Sep 2024, 11:01	2.36	2.36 mg/l
16 Sep 2024, 13:08	2.07	2.07 mg/l
9 Sep 2024, 13:04	2.34	2.34 mg/l
3 Sep 2024, 08:09	2.57	2.57 mg/l
29 Aug 2024, 09:40	2.57	2.57 mg/l
19 Aug 2024, 09:40	2.48	2.48 mg/l
12 Aug 2024, 11:45	2.57	2.57 mg/l
6 Aug 2024, 13:58	2.67	2.67 mg/l
31 Jul 2024, 13:48	2.77	2.77 mg/l
22 Jul 2024, 09:45	3.26	3.26 mg/l
15 Jul 2024, 10:56	2.97	2.97 mg/l
8 Jul 2024, 10:16	3.36	3.36 mg/l
4 Jul 2024, 09:59	3.36	3.36 mg/l
24 Jun 2024, 09:54	3.66	3.66 mg/l
19 Jun 2024, 10:32	4.56	4.56 mg/l
12 Jun 2024, 11:07	3.95	3.95 mg/l
6 Jun 2024, 09:22	4.15	4.15 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.028 mg/l

Sampled 14 Sep 2026, 17 days ago · 113 results banked

Every result (113)

Sampled	Result as published	Reads as
14 Sep 2026, 11:45	0.028	0.028 mg/l
4 Sep 2026, 12:44	0.034	0.034 mg/l
27 Aug 2026, 10:04	0.056	0.056 mg/l
18 Aug 2026, 10:38	0.024	0.024 mg/l
13 Aug 2026, 12:40	0.042	0.042 mg/l
4 Aug 2026, 13:22	0.033	0.033 mg/l
30 Jul 2026, 12:19	0.035	0.035 mg/l
20 Jul 2026, 12:34	0.033	0.033 mg/l
14 Jul 2026, 10:04	0.028	0.028 mg/l
9 Jul 2026, 09:31	0.033	0.033 mg/l
3 Jul 2026, 09:57	0.031	0.031 mg/l
22 Jun 2026, 13:22	0.038	0.038 mg/l
16 Jun 2026, 13:44	0.028	0.028 mg/l
8 Jun 2026, 12:43	0.029	0.029 mg/l
2 Jun 2026, 09:40	0.083	0.083 mg/l
27 May 2026, 10:58	0.045	0.045 mg/l
19 May 2026, 10:09	0.023	0.023 mg/l
13 May 2026, 09:43	0.031	0.031 mg/l
7 May 2026, 11:24	0.045	0.045 mg/l
21 Apr 2026, 11:50	0.015	0.015 mg/l
17 Apr 2026, 10:47	0.012	0.012 mg/l
13 Apr 2026, 13:49	0.015	0.015 mg/l
10 Apr 2026, 13:43	0.012	0.012 mg/l
24 Mar 2026, 10:02	0.031	0.031 mg/l
16 Mar 2026, 14:19	0.061	0.061 mg/l
9 Mar 2026, 10:32	0.062	0.062 mg/l
4 Mar 2026, 13:38	0.067	0.067 mg/l
24 Feb 2026, 09:37	0.081	0.081 mg/l
17 Feb 2026, 10:58	0.08	0.08 mg/l
12 Feb 2026, 15:06	0.085	0.085 mg/l
3 Feb 2026, 10:24	0.081	0.081 mg/l
27 Jan 2026, 08:44	0.078	0.078 mg/l
19 Jan 2026, 11:50	0.07	0.07 mg/l
14 Jan 2026, 14:25	0.069	0.069 mg/l
2 Jan 2026, 13:02	0.058	0.058 mg/l
22 Dec 2025, 10:32	0.067	0.067 mg/l
17 Dec 2025, 11:09	0.062	0.062 mg/l
11 Dec 2025, 10:44	0.051	0.051 mg/l
3 Dec 2025, 14:02	0.058	0.058 mg/l
24 Nov 2025, 10:27	0.045	0.045 mg/l
17 Nov 2025, 10:35	0.038	0.038 mg/l
10 Nov 2025, 09:50	0.034	0.034 mg/l
6 Nov 2025, 15:06	0.034	0.034 mg/l
29 Oct 2025, 10:02	0.032	0.032 mg/l
22 Oct 2025, 12:33	0.011	0.011 mg/l
14 Oct 2025, 13:26	0.018	0.018 mg/l
6 Oct 2025, 09:58	<0.01	below 0.01 mg/l (not detected above this)
3 Oct 2025, 11:27	<0.01	below 0.01 mg/l (not detected above this)
23 Sep 2025, 10:16	0.029	0.029 mg/l
16 Sep 2025, 10:44	0.029	0.029 mg/l
11 Sep 2025, 08:00	0.019	0.019 mg/l
2 Sep 2025, 13:00	0.029	0.029 mg/l
29 Aug 2025, 08:05	0.056	0.056 mg/l
21 Aug 2025, 09:33	0.029	0.029 mg/l
13 Aug 2025, 15:14	0.024	0.024 mg/l
6 Aug 2025, 14:58	0.027	0.027 mg/l
22 Jul 2025, 09:42	0.013	0.013 mg/l
15 Jul 2025, 11:25	0.018	0.018 mg/l
8 Jul 2025, 11:33	0.024	0.024 mg/l
3 Jul 2025, 12:01	0.032	0.032 mg/l
24 Jun 2025, 14:48	0.033	0.033 mg/l
16 Jun 2025, 09:38	0.038	0.038 mg/l
9 Jun 2025, 11:07	0.024	0.024 mg/l
4 Jun 2025, 14:48	0.035	0.035 mg/l
27 May 2025, 15:05	0.02	0.02 mg/l
23 May 2025, 11:43	0.02	0.02 mg/l
13 May 2025, 10:25	0.035	0.035 mg/l
7 May 2025, 13:40	0.026	0.026 mg/l
2 May 2025, 09:15	0.031	0.031 mg/l
23 Apr 2025, 15:31	0.023	0.023 mg/l
15 Apr 2025, 11:31	0.011	0.011 mg/l
10 Apr 2025, 15:32	<0.01	below 0.01 mg/l (not detected above this)
3 Apr 2025, 08:51	<0.01	below 0.01 mg/l (not detected above this)
25 Mar 2025, 11:58	<0.01	below 0.01 mg/l (not detected above this)
17 Mar 2025, 12:42	0.033	0.033 mg/l
14 Mar 2025, 12:57	0.035	0.035 mg/l
4 Mar 2025, 11:34	0.05	0.05 mg/l
24 Feb 2025, 12:32	0.069	0.069 mg/l
17 Feb 2025, 14:18	0.061	0.061 mg/l
12 Feb 2025, 10:17	0.068	0.068 mg/l
5 Feb 2025, 14:23	0.068	0.068 mg/l
27 Jan 2025, 11:49	0.093	0.093 mg/l
21 Jan 2025, 14:38	0.081	0.081 mg/l
15 Jan 2025, 11:07	0.084	0.084 mg/l
9 Jan 2025, 11:04	0.079	0.079 mg/l
16 Dec 2024, 11:13	0.074	0.074 mg/l
3 Dec 2024, 09:51	0.066	0.066 mg/l
27 Nov 2024, 10:05	0.18	0.18 mg/l
18 Nov 2024, 10:06	0.058	0.058 mg/l
11 Nov 2024, 10:18	0.044	0.044 mg/l
5 Nov 2024, 09:04	0.044	0.044 mg/l
30 Oct 2024, 11:58	0.046	0.046 mg/l
22 Oct 2024, 10:33	0.042	0.042 mg/l
17 Oct 2024, 09:45	0.04	0.04 mg/l
9 Oct 2024, 12:14	0.054	0.054 mg/l
2 Oct 2024, 13:35	0.039	0.039 mg/l
24 Sep 2024, 11:01	0.022	0.022 mg/l
16 Sep 2024, 13:08	0.03	0.03 mg/l
9 Sep 2024, 13:04	0.04	0.04 mg/l
3 Sep 2024, 08:09	0.029	0.029 mg/l
29 Aug 2024, 09:40	0.04	0.04 mg/l
19 Aug 2024, 09:40	0.025	0.025 mg/l
12 Aug 2024, 11:45	0.02	0.02 mg/l
6 Aug 2024, 13:58	0.02	0.02 mg/l
31 Jul 2024, 13:48	0.015	0.015 mg/l
22 Jul 2024, 09:45	0.013	0.013 mg/l
15 Jul 2024, 10:56	0.013	0.013 mg/l
8 Jul 2024, 10:16	<0.01	below 0.01 mg/l (not detected above this)
4 Jul 2024, 09:59	0.014	0.014 mg/l
24 Jun 2024, 09:54	0.019	0.019 mg/l
19 Jun 2024, 10:32	<0.01	below 0.01 mg/l (not detected above this)
12 Jun 2024, 11:07	0.014	0.014 mg/l
6 Jun 2024, 09:22	0.022	0.022 mg/l

Everything measured here

67 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 67 rows

Determinand	Material	Results	First – last	Latest result
Temperature of Water 0076	River water	115	Jun 2024 – Sep 2026	19 °C 14 Sep 2026
Ammoniacal Nitrogen as N 0111	River water	113	Jun 2024 – Sep 2026	below 0.03 mg/l 14 Sep 2026
Nitrate as N 0117	River water	113	Jun 2024 – Sep 2026	1.09 mg/l 14 Sep 2026
Orthophosphate, reactive as P 0180	River water	113	Jun 2024 – Sep 2026	0.028 mg/l 14 Sep 2026
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
3:3 Fluorotelomer carboxylic acid 2926	River water	1	Jun 2024 – Jun 2024	below 0.004 µg/l 6 Jun 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988	River water	1	Jun 2024 – Jun 2024	below 0.005 µg/l 6 Jun 2024
4:2 Fluorotelomer sulfonic acid 2987	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
6:2 Fluorotelomer sulfonic acid 2984	River water	1	Jun 2024 – Jun 2024	0.0039 µg/l 6 Jun 2024
8:2 Fluorotelomer sulfonic acid 2983	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Hexafluoropropylene oxide dimer acid (Gen X) 2981	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
N-Ethylperfluorooctanesulfonamide 2977	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
N-methylperfluorooctanesulfonamide 2975	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
Nitrite as N 0118	River water	113	Jun 2024 – Sep 2026	0.014 mg/l 14 Sep 2026
Nitrogen, Kjeldahl as N 0114	River water	110	Jun 2024 – Sep 2026	0.4 mg/l 14 Sep 2026
Nitrogen, Organic as N 0113	River water	110	Jun 2024 – Sep 2026	0.37 mg/l 14 Sep 2026
Nitrogen, Total as N 9686	River water	113	Jun 2024 – Sep 2026	1.5 mg/l 14 Sep 2026
Nitrogen, Total Oxidised as N 0116	River water	113	Jun 2024 – Sep 2026	1.1 mg/l 14 Sep 2026
Perfluoro(2-ethoxyethane)sulfonic acid 2924	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluoro(4-methoxybutanoic) acid 2923	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluoro-3-methoxypropanoic acid 2921	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluorobutanesulfonic acid 2972	River water	1	Jun 2024 – Jun 2024	0.0013 µg/l 6 Jun 2024
Perfluorobutanoic acid 2995	River water	1	Jun 2024 – Jun 2024	0.0014 µg/l 6 Jun 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluorodecanesulfonic acid 2969	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
Perfluorodecanoic acid 8892	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
Perfluorododecane sulfonic acid 2968	River water	1	Jun 2024 – Jun 2024	below 0.005 µg/l 6 Jun 2024
Perfluorododecanoic acid 8894	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
Perfluoroheptanesulfonic acid 2967	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluoroheptanoic acid 8889	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
Perfluorohexanesulfonamide 2965	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluorohexanesulfonic acid (B) 2944	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluorohexanesulfonic acid (L) 2964	River water	1	Jun 2024 – Jun 2024	0.0011 µg/l 6 Jun 2024
Perfluorohexanoic acid 8888	River water	1	Jun 2024 – Jun 2024	0.0016 µg/l 6 Jun 2024
Perfluorononanesulfonic acid 2963	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluorononanoic acid 8891	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
Perfluorooctadecanoic acid 2962	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
Perfluorooctanesulfonamide 2961	River water	1	Jun 2024 – Jun 2024	below 0.001 µg/l 6 Jun 2024
Perfluorooctanesulfonic acid (branched) 2960	River water	1	Jun 2024 – Jun 2024	0.00093 µg/l 6 Jun 2024
Perfluorooctanesulfonic acid (linear) 2959	River water	1	Jun 2024 – Jun 2024	0.00088 µg/l 6 Jun 2024
Perfluorooctanoic acid 8890	River water	1	Jun 2024 – Jun 2024	0.0011 µg/l 6 Jun 2024
Perfluoropentanesulfonic acid 2957	River water	1	Jun 2024 – Jun 2024	below 0.0005 µg/l 6 Jun 2024
Perfluoropentanoic acid 8887	River water	1	Jun 2024 – Jun 2024	0.0017 µg/l 6 Jun 2024
Perfluorotetradecanoic acid 8895	River water	1	Jun 2024 – Jun 2024	below 0.006 µg/l 6 Jun 2024
Perfluorotridecanoic acid 2955	River water	1	Jun 2024 – Jun 2024	below 0.005 µg/l 6 Jun 2024
Perfluoroundecane sulfonic acid 2953	River water	1	Jun 2024 – Jun 2024	below 0.004 µg/l 6 Jun 2024
Perfluoroundecanoic acid 8893	River water	1	Jun 2024 – Jun 2024	below 0.002 µg/l 6 Jun 2024
Phosphate :- {TIP} 0192	River water	115	Jun 2024 – Sep 2026	0.044 mg/l 14 Sep 2026
Phosphorus, Total as P 0348	River water	113	Jun 2024 – Sep 2026	0.052 mg/l 14 Sep 2026
Solids, Suspended at 105 C 0135	River water	123	Apr 2024 – Sep 2026	3.2 mg/l 14 Sep 2026
Anthracene : Wet Wt 8406	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	below 0.5 microgram per kilogram 23 Aug 2024
Benzo(a)Pyrene : Wet Wt 8414	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	1.6 microgram per kilogram 23 Aug 2024
Benzo(b)Fluoranthene : Wet Wt 7223	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	1.9 microgram per kilogram 23 Aug 2024
Benzo(g,h,i)Perylene : Wet Wt 7225	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	1.5 microgram per kilogram 23 Aug 2024
Benzo(k)Fluoranthene : Wet Wt 8431	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	0.9 microgram per kilogram 23 Aug 2024
Dry Matter : % 9905	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	30% 23 Aug 2024
Fluoranthene : Wet Wt 7261	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	3.3 microgram per kilogram 23 Aug 2024
Indeno(1,2,3-cd)pyrene : Wet Wt 0747	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	0.88 microgram per kilogram 23 Aug 2024
Lipids : Total : Wet Wt 8680	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	1.2% 23 Aug 2024
Sample Preparation 8394	Any shellfish (mollusc & crustacean) - whole animal	2	Aug 2024 – Aug 2024	1 text result 23 Aug 2024

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.