River Deben Naunton Hall Gauging Station
EA name: R.DEBEN NAUNTON HALL GAUGING STATION
Environment Agency sampling point AN-DEB085 · 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
- 2 Sep 2026, 09:5429 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 18 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 632200, 253400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Deben
- River, by the map
- River DebenPlaced on the river its name gives, 18 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Monitoring (UK govt policy - not GQA or RE) (10 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
80.1%
Sampled 2 Sep 2026, 29 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 80.1 | 80.1% |
| 19 Aug 2026, 13:41 | 76.4 | 76.4% |
| 14 Jul 2026, 10:04 | 55.5 | 55.5% |
| 12 Jun 2026, 09:17 | 78 | 78% |
| 14 May 2026, 14:52 | 92.2 | 92.2% |
| 10 Apr 2026, 13:17 | 103.6 | 103.6% |
| 18 Mar 2026, 11:11 | 97.1 | 97.1% |
| 3 Feb 2026, 10:24 | 87.5 | 87.5% |
| 8 Jan 2026, 14:27 | 92.7 | 92.7% |
| 4 Dec 2025, 10:41 | 86.2 | 86.2% |
| 11 Nov 2025, 12:55 | 67 | 67% |
| 3 Oct 2025, 09:46 | 83.1 | 83.1% |
| 9 Sep 2025, 12:22 | 80.2 | 80.2% |
| 6 Aug 2025, 10:50 | 78.2 | 78.2% |
| 4 Jul 2025, 11:14 | 86.3 | 86.3% |
| 13 Jun 2025, 11:00 | 87.8 | 87.8% |
| 5 Jun 2025, 10:20 | 69.6 | 69.6% |
| 4 Apr 2025, 10:32 | 99.4 | 99.4% |
| 26 Mar 2025, 10:38 | 100.7 | 100.7% |
| 18 Mar 2025, 13:50 | 111.6 | 111.6% |
| 28 Feb 2025, 11:22 | 95.6 | 95.6% |
| 4 Dec 2024, 10:58 | 85.9 | 85.9% |
| 19 Nov 2024, 12:51 | 75 | 75% |
| 17 Oct 2024, 13:00 | 73.7 | 73.7% |
| 25 Sep 2024, 09:55 | 76.4 | 76.4% |
| 29 Aug 2024, 15:01 | 96.9 | 96.9% |
| 30 Jul 2024, 15:07 | 90.7 | 90.7% |
| 18 Jun 2024, 14:12 | 86.7 | 86.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.85 mg/l
Sampled 2 Sep 2026, 29 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 7.85 | 7.85 mg/l |
| 19 Aug 2026, 13:41 | 7.2 | 7.2 mg/l |
| 14 Jul 2026, 10:04 | 5.14 | 5.14 mg/l |
| 12 Jun 2026, 09:17 | 7.74 | 7.74 mg/l |
| 14 May 2026, 14:52 | 10.1 | 10.1 mg/l |
| 10 Apr 2026, 13:17 | 11.3 | 11.3 mg/l |
| 18 Mar 2026, 11:11 | 11 | 11 mg/l |
| 3 Feb 2026, 10:24 | 11.1 | 11.1 mg/l |
| 8 Jan 2026, 14:27 | 12.8 | 12.8 mg/l |
| 4 Dec 2025, 10:41 | 10.4 | 10.4 mg/l |
| 11 Nov 2025, 12:55 | 7.29 | 7.29 mg/l |
| 3 Oct 2025, 09:46 | 8.66 | 8.66 mg/l |
| 9 Sep 2025, 12:22 | 7.91 | 7.91 mg/l |
| 6 Aug 2025, 10:50 | 7.7 | 7.7 mg/l |
| 4 Jul 2025, 11:14 | 7.89 | 7.89 mg/l |
| 13 Jun 2025, 11:00 | 8.06 | 8.06 mg/l |
| 5 Jun 2025, 10:20 | 6.97 | 6.97 mg/l |
| 4 Apr 2025, 10:32 | 10.8 | 10.8 mg/l |
| 26 Mar 2025, 10:38 | 11.2 | 11.2 mg/l |
| 18 Mar 2025, 13:50 | 13.2 | 13.2 mg/l |
| 28 Feb 2025, 11:22 | 11.9 | 11.9 mg/l |
| 4 Dec 2024, 10:58 | 10.5 | 10.5 mg/l |
| 19 Nov 2024, 12:51 | 8.96 | 8.96 mg/l |
| 17 Oct 2024, 13:00 | 7.66 | 7.66 mg/l |
| 25 Sep 2024, 09:55 | 7.87 | 7.87 mg/l |
| 29 Aug 2024, 15:01 | 9.13 | 9.13 mg/l |
| 30 Jul 2024, 15:07 | 8.33 | 8.33 mg/l |
| 18 Jun 2024, 14:12 | 8.39 | 8.39 mg/l |
Water temperature
code 0076 · °C
16.2 °C
Sampled 2 Sep 2026, 29 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 16.2 | 16.2 °C |
| 19 Aug 2026, 13:41 | 18.1 | 18.1 °C |
| 14 Jul 2026, 10:04 | 19 | 19 °C |
| 12 Jun 2026, 09:17 | 15.6 | 15.6 °C |
| 14 May 2026, 14:52 | 11.4 | 11.4 °C |
| 10 Apr 2026, 13:17 | 11.4 | 11.4 °C |
| 18 Mar 2026, 11:11 | 9.9 | 9.9 °C |
| 3 Feb 2026, 10:24 | 5.3 | 5.3 °C |
| 8 Jan 2026, 14:27 | 2.1 | 2.1 °C |
| 4 Dec 2025, 10:41 | 7.1 | 7.1 °C |
| 11 Nov 2025, 12:55 | 11.5 | 11.5 °C |
| 3 Oct 2025, 09:46 | 13.4 | 13.4 °C |
| 9 Sep 2025, 12:22 | 15.9 | 15.9 °C |
| 6 Aug 2025, 10:50 | 16 | 16 °C |
| 4 Jul 2025, 11:14 | 19.6 | 19.6 °C |
| 13 Jun 2025, 11:00 | 19.4 | 19.4 °C |
| 5 Jun 2025, 10:20 | 15.2 | 15.2 °C |
| 14 May 2025, 10:57 | 15.7 | 15.7 °C |
| 8 May 2025, 12:45 | 13.1 | 13.1 °C |
| 22 Apr 2025, 11:41 | 15.3 | 15.3 °C |
| 15 Apr 2025, 10:50 | 13 | 13 °C |
| 7 Apr 2025, 11:20 | 10.2 | 10.2 °C |
| 4 Apr 2025, 10:32 | 11.5 | 11.5 °C |
| 26 Mar 2025, 10:38 | 10.6 | 10.6 °C |
| 18 Mar 2025, 13:50 | 7.9 | 7.9 °C |
| 28 Feb 2025, 11:22 | 6.1 | 6.1 °C |
| 4 Dec 2024, 10:58 | 6.6 | 6.6 °C |
| 19 Nov 2024, 12:51 | 7.6 | 7.6 °C |
| 17 Oct 2024, 13:00 | 13.5 | 13.5 °C |
| 25 Sep 2024, 09:55 | 13.9 | 13.9 °C |
| 29 Aug 2024, 15:01 | 18.1 | 18.1 °C |
| 30 Jul 2024, 15:07 | 19.4 | 19.4 °C |
| 18 Jun 2024, 14:12 | 16.8 | 16.8 °C |
pH
code 0061
8
Sampled 2 Sep 2026, 29 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 8 | 8 |
| 19 Aug 2026, 13:41 | 8.05 | 8.05 |
| 14 Jul 2026, 10:04 | 7.56 | 7.56 |
| 12 Jun 2026, 09:17 | 8.01 | 8.01 |
| 14 May 2026, 14:52 | 8.22 | 8.22 |
| 10 Apr 2026, 13:17 | 8.45 | 8.45 |
| 18 Mar 2026, 11:11 | 8.17 | 8.17 |
| 3 Feb 2026, 10:24 | 8.09 | 8.09 |
| 8 Jan 2026, 14:27 | 8.03 | 8.03 |
| 4 Dec 2025, 10:41 | 7.96 | 7.96 |
| 11 Nov 2025, 12:55 | 8 | 8 |
| 3 Oct 2025, 09:46 | 7.85 | 7.85 |
| 9 Sep 2025, 12:22 | 7.88 | 7.88 |
| 6 Aug 2025, 10:50 | 7.8 | 7.8 |
| 4 Jul 2025, 11:14 | 7.93 | 7.93 |
| 13 Jun 2025, 11:00 | 8.15 | 8.15 |
| 5 Jun 2025, 10:20 | 7.76 | 7.76 |
| 4 Apr 2025, 10:32 | 8.05 | 8.05 |
| 26 Mar 2025, 10:38 | 8.14 | 8.14 |
| 18 Mar 2025, 13:50 | 8.12 | 8.12 |
| 28 Feb 2025, 11:22 | 8.21 | 8.21 |
| 4 Dec 2024, 10:58 | 7.81 | 7.81 |
| 19 Nov 2024, 12:51 | 7.85 | 7.85 |
| 17 Oct 2024, 13:00 | 7.73 | 7.73 |
| 25 Sep 2024, 09:55 | 7.88 | 7.88 |
| 29 Aug 2024, 15:01 | 7.95 | 7.95 |
| 30 Jul 2024, 15:07 | 8.54 | 8.54 |
| 18 Jun 2024, 14:12 | 7.91 | 7.91 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 2 Sep 2026, 29 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Aug 2026, 13:41 | <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) |
| 12 Jun 2026, 09:17 | 0.065 | 0.065 mg/l |
| 14 May 2026, 14:52 | 0.048 | 0.048 mg/l |
| 10 Apr 2026, 13:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2026, 11:11 | 0.041 | 0.041 mg/l |
| 3 Feb 2026, 10:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2026, 14:27 | 0.17 | 0.17 mg/l |
| 4 Dec 2025, 10:41 | 0.05 | 0.05 mg/l |
| 11 Nov 2025, 12:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2025, 09:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Sep 2025, 12:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Aug 2025, 10:50 | 0.045 | 0.045 mg/l |
| 4 Jul 2025, 11:14 | 0.046 | 0.046 mg/l |
| 13 Jun 2025, 11:00 | 0.041 | 0.041 mg/l |
| 5 Jun 2025, 10:20 | 0.065 | 0.065 mg/l |
| 14 May 2025, 10:57 | 0.079 | 0.079 mg/l |
| 8 May 2025, 12:45 | 0.048 | 0.048 mg/l |
| 22 Apr 2025, 11:41 | 0.084 | 0.084 mg/l |
| 15 Apr 2025, 10:50 | 0.04 | 0.04 mg/l |
| 7 Apr 2025, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2025, 10:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2025, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2025, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Feb 2025, 11:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2024, 10:58 | 0.062 | 0.062 mg/l |
| 19 Nov 2024, 12:51 | 0.031 | 0.031 mg/l |
| 17 Oct 2024, 13:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Sep 2024, 09:55 | 0.079 | 0.079 mg/l |
| 29 Aug 2024, 15:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2024, 15:07 | 0.037 | 0.037 mg/l |
| 18 Jun 2024, 14:12 | 0.039 | 0.039 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.79 mg/l
Sampled 2 Sep 2026, 29 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 2.79 | 2.79 mg/l |
| 19 Aug 2026, 13:41 | 2.59 | 2.59 mg/l |
| 14 Jul 2026, 10:04 | 2.99 | 2.99 mg/l |
| 12 Jun 2026, 09:17 | 2.96 | 2.96 mg/l |
| 14 May 2026, 14:52 | 4.17 | 4.17 mg/l |
| 10 Apr 2026, 13:17 | 3.79 | 3.79 mg/l |
| 18 Mar 2026, 11:11 | 4.98 | 4.98 mg/l |
| 3 Feb 2026, 10:24 | 11 | 11 mg/l |
| 8 Jan 2026, 14:27 | 6.06 | 6.06 mg/l |
| 4 Dec 2025, 10:41 | 9.95 | 9.95 mg/l |
| 11 Nov 2025, 12:55 | 4.65 | 4.65 mg/l |
| 3 Oct 2025, 09:46 | 3.09 | 3.09 mg/l |
| 9 Sep 2025, 12:22 | 3.69 | 3.69 mg/l |
| 6 Aug 2025, 10:50 | 3.39 | 3.39 mg/l |
| 4 Jul 2025, 11:14 | 3.97 | 3.97 mg/l |
| 13 Jun 2025, 11:00 | 3.27 | 3.27 mg/l |
| 5 Jun 2025, 10:20 | 3.66 | 3.66 mg/l |
| 14 May 2025, 10:57 | 3.67 | 3.67 mg/l |
| 8 May 2025, 12:45 | 3.58 | 3.58 mg/l |
| 22 Apr 2025, 11:41 | 3.87 | 3.87 mg/l |
| 15 Apr 2025, 10:50 | 4.08 | 4.08 mg/l |
| 7 Apr 2025, 11:20 | 3.98 | 3.98 mg/l |
| 4 Apr 2025, 10:32 | 4.69 | 4.69 mg/l |
| 26 Mar 2025, 10:38 | 4.88 | 4.88 mg/l |
| 18 Mar 2025, 13:50 | 6.38 | 6.38 mg/l |
| 28 Feb 2025, 11:22 | 9.88 | 9.88 mg/l |
| 4 Dec 2024, 10:58 | 9.05 | 9.05 mg/l |
| 19 Nov 2024, 12:51 | 3.97 | 3.97 mg/l |
| 17 Oct 2024, 13:00 | 9.35 | 9.35 mg/l |
| 25 Sep 2024, 09:55 | 3.37 | 3.37 mg/l |
| 29 Aug 2024, 15:01 | 2 | 2 mg/l |
| 30 Jul 2024, 15:07 | 4.48 | 4.48 mg/l |
| 18 Jun 2024, 14:12 | 4.17 | 4.17 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 2 Sep 2026, 29 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 0.11 | 0.11 mg/l |
| 19 Aug 2026, 13:41 | 0.087 | 0.087 mg/l |
| 14 Jul 2026, 10:04 | 0.13 | 0.13 mg/l |
| 12 Jun 2026, 09:17 | 0.12 | 0.12 mg/l |
| 14 May 2026, 14:52 | 0.097 | 0.097 mg/l |
| 10 Apr 2026, 13:17 | 0.038 | 0.038 mg/l |
| 18 Mar 2026, 11:11 | 0.061 | 0.061 mg/l |
| 3 Feb 2026, 10:24 | 0.082 | 0.082 mg/l |
| 8 Jan 2026, 14:27 | 0.081 | 0.081 mg/l |
| 4 Dec 2025, 10:41 | 0.067 | 0.067 mg/l |
| 11 Nov 2025, 12:55 | 0.091 | 0.091 mg/l |
| 3 Oct 2025, 09:46 | 0.32 | 0.32 mg/l |
| 9 Sep 2025, 12:22 | 0.22 | 0.22 mg/l |
| 6 Aug 2025, 10:50 | 0.56 | 0.56 mg/l |
| 4 Jul 2025, 11:14 | 1.3 | 1.3 mg/l |
| 13 Jun 2025, 11:00 | 0.25 | 0.25 mg/l |
| 5 Jun 2025, 10:20 | 0.42 | 0.42 mg/l |
| 14 May 2025, 10:57 | 0.22 | 0.22 mg/l |
| 8 May 2025, 12:45 | 0.092 | 0.092 mg/l |
| 22 Apr 2025, 11:41 | 0.037 | 0.037 mg/l |
| 15 Apr 2025, 10:50 | 0.059 | 0.059 mg/l |
| 7 Apr 2025, 11:20 | 0.014 | 0.014 mg/l |
| 4 Apr 2025, 10:32 | 0.024 | 0.024 mg/l |
| 26 Mar 2025, 10:38 | 0.011 | 0.011 mg/l |
| 18 Mar 2025, 13:50 | 0.17 | 0.17 mg/l |
| 28 Feb 2025, 11:22 | 0.068 | 0.068 mg/l |
| 4 Dec 2024, 10:58 | 0.071 | 0.071 mg/l |
| 19 Nov 2024, 12:51 | 0.16 | 0.16 mg/l |
| 17 Oct 2024, 13:00 | 0.12 | 0.12 mg/l |
| 25 Sep 2024, 09:55 | 0.2 | 0.2 mg/l |
| 29 Aug 2024, 15:01 | 0.12 | 0.12 mg/l |
| 30 Jul 2024, 15:07 | 0.36 | 0.36 mg/l |
| 18 Jun 2024, 14:12 | 0.096 | 0.096 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1026 µS/cm
Sampled 2 Sep 2026, 29 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 09:54 | 1026 | 1026 µS/cm |
| 19 Aug 2026, 13:41 | 1032 | 1032 µS/cm |
| 14 Jul 2026, 10:04 | 1074 | 1074 µS/cm |
| 12 Jun 2026, 09:17 | 1584 | 1584 µS/cm |
| 14 May 2026, 14:52 | 1857 | 1857 µS/cm |
| 10 Apr 2026, 13:17 | 1290 | 1290 µS/cm |
| 18 Mar 2026, 11:11 | 928 | 928 µS/cm |
| 3 Feb 2026, 10:24 | 721 | 721 µS/cm |
| 8 Jan 2026, 14:27 | 1054 | 1054 µS/cm |
| 4 Dec 2025, 10:41 | 959 | 959 µS/cm |
| 11 Nov 2025, 12:55 | 1108 | 1108 µS/cm |
| 3 Oct 2025, 09:46 | 1055 | 1055 µS/cm |
| 9 Sep 2025, 12:22 | 1018 | 1018 µS/cm |
| 6 Aug 2025, 10:50 | 1024 | 1024 µS/cm |
| 4 Jul 2025, 11:14 | 1084 | 1084 µS/cm |
| 13 Jun 2025, 11:00 | 1844 | 1844 µS/cm |
| 5 Jun 2025, 10:20 | 998 | 998 µS/cm |
| 4 Apr 2025, 10:32 | 972 | 972 µS/cm |
| 26 Mar 2025, 10:38 | 942 | 942 µS/cm |
| 18 Mar 2025, 13:50 | 981 | 981 µS/cm |
| 28 Feb 2025, 11:22 | 798 | 798 µS/cm |
| 4 Dec 2024, 10:58 | 910 | 910 µS/cm |
| 19 Nov 2024, 12:51 | 982 | 982 µS/cm |
| 17 Oct 2024, 13:00 | 911 | 911 µS/cm |
| 25 Sep 2024, 09:55 | 1007 | 1007 µS/cm |
| 29 Aug 2024, 15:01 | 1004 | 1004 µS/cm |
| 30 Jul 2024, 15:07 | 989 | 989 µS/cm |
| 18 Jun 2024, 14:12 | 939 | 939 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
560 per 100 ml
Sampled 4 Jul 2025, 15 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Jul 2025, 11:14 | 560 | 560 per 100 ml |
| 13 Jun 2025, 11:00 | 610 | 610 per 100 ml |
| 5 Jun 2025, 10:20 | 220 | 220 per 100 ml |
| 14 May 2025, 10:57 | 81 | 81 per 100 ml |
| 8 May 2025, 12:45 | 90 | 90 per 100 ml |
| 22 Apr 2025, 11:41 | 180 | 180 per 100 ml |
| 15 Apr 2025, 10:50 | 200 | 200 per 100 ml |
| 7 Apr 2025, 11:20 | 190 | 190 per 100 ml |
| 4 Apr 2025, 10:32 | 110 | 110 per 100 ml |
Everything measured here
22 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 22 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 28 | Jun 2024 – Sep 2026 | 80.1% 2 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Jun 2024 – Sep 2026 | 7.85 mg/l 2 Sep 2026 |
| Temperature of Water 0076 | River water | 33 | Jun 2024 – Sep 2026 | 16.2 °C 2 Sep 2026 |
| pH 0061 | River water | 28 | Jun 2024 – Sep 2026 | 8 2 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Jun 2024 – Sep 2026 | below 0.03 mg/l 2 Sep 2026 |
| Nitrate as N 0117 | River water | 33 | Jun 2024 – Sep 2026 | 2.79 mg/l 2 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Jun 2024 – Sep 2026 | 0.11 mg/l 2 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Jun 2024 – Sep 2026 | 1026 µS/cm 2 Sep 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 9 | Apr 2025 – Jul 2025 | 560 per 100 ml 4 Jul 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Sep 2026 | 290 mg/l 2 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jun 2024 – Sep 2026 | below 0.00086 mg/l 2 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.3 mg/l 14 May 2026 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 9 | Apr 2025 – Jul 2025 | 150 colony forming units / 100ml 4 Jul 2025 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 9 | Apr 2025 – Jul 2025 | 170 colony forming units / 100ml 4 Jul 2025 |
| Nitrite as N 0118 | River water | 33 | Jun 2024 – Sep 2026 | 0.006 mg/l 2 Sep 2026 |
| Nitrogen, Kjeldahl as N 0114 | River water | 10 | Apr 2025 – Aug 2025 | 0.6 mg/l 6 Aug 2025 |
| Nitrogen, Organic as N 0113 | River water | 10 | Apr 2025 – Aug 2025 | 0.555 mg/l 6 Aug 2025 |
| Nitrogen, Total as N 9686 | River water | 10 | Apr 2025 – Aug 2025 | 4 mg/l 6 Aug 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Jun 2024 – Sep 2026 | 2.8 mg/l 2 Sep 2026 |
| Phosphate :- {TIP} 0192 | River water | 10 | Apr 2025 – Aug 2025 | 0.59 mg/l 6 Aug 2025 |
| Phosphorus, Total as P 0348 | River water | 10 | Apr 2025 – Aug 2025 | 0.61 mg/l 6 Aug 2025 |
| Solids, Suspended at 105 C 0135 | River water | 10 | Apr 2025 – Aug 2025 | 4 mg/l 6 Aug 2025 |
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.
Contains OS data © Crown copyright and database rights 2026.