River Deben Ufford Bridge
EA name: R.DEBEN UFFORD BRIDGE
Environment Agency sampling point AN-DEB090 · 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, 10:0829 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 13 since 10 Apr 2025 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 630000, 251900As 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, 28 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Environmental monitoring statutory (EU directives) (13 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
80.1%
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 80.1 | 80.1% |
| 19 Aug 2026, 14:02 | 88.1 | 88.1% |
| 29 Jul 2026, 09:59 | 72.3 | 72.3% |
| 19 Jun 2026, 10:33 | 77.5 | 77.5% |
| 11 May 2026, 08:36 | 85 | 85% |
| 30 Apr 2026, 11:36 | 103.3 | 103.3% |
| 26 Mar 2026, 11:14 | 94.3 | 94.3% |
| 3 Feb 2026, 10:43 | 83.9 | 83.9% |
| 6 Jan 2026, 10:46 | 88.7 | 88.7% |
| 4 Dec 2025, 11:00 | 76.4 | 76.4% |
| 18 Nov 2025, 10:05 | 73.7 | 73.7% |
| 9 Oct 2025, 11:52 | 83.3 | 83.3% |
| 10 Apr 2025, 11:25 | 107.3 | 107.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.85 mg/l
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 7.85 | 7.85 mg/l |
| 19 Aug 2026, 14:02 | 8.26 | 8.26 mg/l |
| 29 Jul 2026, 09:59 | 6.77 | 6.77 mg/l |
| 19 Jun 2026, 10:33 | 7.15 | 7.15 mg/l |
| 11 May 2026, 08:36 | 9.83 | 9.83 mg/l |
| 30 Apr 2026, 11:36 | 10.8 | 10.8 mg/l |
| 26 Mar 2026, 11:14 | 11.2 | 11.2 mg/l |
| 3 Feb 2026, 10:43 | 10.6 | 10.6 mg/l |
| 6 Jan 2026, 10:46 | 12.8 | 12.8 mg/l |
| 4 Dec 2025, 11:00 | 9.26 | 9.26 mg/l |
| 18 Nov 2025, 10:05 | 9.28 | 9.28 mg/l |
| 9 Oct 2025, 11:52 | 8.94 | 8.94 mg/l |
| 10 Apr 2025, 11:25 | 12 | 12 mg/l |
Water temperature
code 0076 · °C
16.2 °C
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 16.2 | 16.2 °C |
| 19 Aug 2026, 14:02 | 18.3 | 18.3 °C |
| 29 Jul 2026, 09:59 | 18.4 | 18.4 °C |
| 19 Jun 2026, 10:33 | 19.1 | 19.1 °C |
| 11 May 2026, 08:36 | 8.9 | 8.9 °C |
| 30 Apr 2026, 11:36 | 13.1 | 13.1 °C |
| 26 Mar 2026, 11:14 | 8 | 8 °C |
| 3 Feb 2026, 10:43 | 5.5 | 5.5 °C |
| 6 Jan 2026, 10:46 | 0.5 | 0.5 °C |
| 4 Dec 2025, 11:00 | 7 | 7 °C |
| 18 Nov 2025, 10:05 | 5.5 | 5.5 °C |
| 9 Oct 2025, 11:52 | 12.1 | 12.1 °C |
| 10 Apr 2025, 11:25 | 10.3 | 10.3 °C |
pH
code 0061
7.96
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 7.96 | 7.96 |
| 19 Aug 2026, 14:02 | 8.11 | 8.11 |
| 29 Jul 2026, 09:59 | 7.61 | 7.61 |
| 19 Jun 2026, 10:33 | 7.85 | 7.85 |
| 11 May 2026, 08:36 | 8.08 | 8.08 |
| 30 Apr 2026, 11:36 | 8.13 | 8.13 |
| 26 Mar 2026, 11:14 | 8.17 | 8.17 |
| 3 Feb 2026, 10:43 | 8.04 | 8.04 |
| 6 Jan 2026, 10:46 | 8.08 | 8.08 |
| 4 Dec 2025, 11:00 | 7.89 | 7.89 |
| 18 Nov 2025, 10:05 | 7.75 | 7.75 |
| 9 Oct 2025, 11:52 | 7.9 | 7.9 |
| 10 Apr 2025, 11:25 | 8.25 | 8.25 |
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 · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Aug 2026, 14:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jul 2026, 09:59 | 0.039 | 0.039 mg/l |
| 19 Jun 2026, 10:33 | 0.06 | 0.06 mg/l |
| 11 May 2026, 08:36 | 0.041 | 0.041 mg/l |
| 30 Apr 2026, 11:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2026, 11:14 | 0.032 | 0.032 mg/l |
| 3 Feb 2026, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2026, 10:46 | 0.17 | 0.17 mg/l |
| 4 Dec 2025, 11:00 | 0.032 | 0.032 mg/l |
| 18 Nov 2025, 10:05 | 0.052 | 0.052 mg/l |
| 9 Oct 2025, 11:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2025, 11:25 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.19 mg/l
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 3.19 | 3.19 mg/l |
| 19 Aug 2026, 14:02 | 3.68 | 3.68 mg/l |
| 29 Jul 2026, 09:59 | 3.17 | 3.17 mg/l |
| 19 Jun 2026, 10:33 | 3.25 | 3.25 mg/l |
| 11 May 2026, 08:36 | 4.18 | 4.18 mg/l |
| 30 Apr 2026, 11:36 | 5.27 | 5.27 mg/l |
| 26 Mar 2026, 11:14 | 5.68 | 5.68 mg/l |
| 3 Feb 2026, 10:43 | 9.98 | 9.98 mg/l |
| 6 Jan 2026, 10:46 | 9.04 | 9.04 mg/l |
| 4 Dec 2025, 11:00 | 9.85 | 9.85 mg/l |
| 18 Nov 2025, 10:05 | 10.9 | 10.9 mg/l |
| 9 Oct 2025, 11:52 | 5.17 | 5.17 mg/l |
| 10 Apr 2025, 11:25 | 5.28 | 5.28 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.085 mg/l
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 0.085 | 0.085 mg/l |
| 19 Aug 2026, 14:02 | 0.069 | 0.069 mg/l |
| 29 Jul 2026, 09:59 | 0.058 | 0.058 mg/l |
| 19 Jun 2026, 10:33 | 0.1 | 0.1 mg/l |
| 11 May 2026, 08:36 | 0.094 | 0.094 mg/l |
| 30 Apr 2026, 11:36 | 0.11 | 0.11 mg/l |
| 26 Mar 2026, 11:14 | 0.08 | 0.08 mg/l |
| 3 Feb 2026, 10:43 | 0.079 | 0.079 mg/l |
| 6 Jan 2026, 10:46 | 0.12 | 0.12 mg/l |
| 4 Dec 2025, 11:00 | 0.096 | 0.096 mg/l |
| 18 Nov 2025, 10:05 | 0.18 | 0.18 mg/l |
| 9 Oct 2025, 11:52 | 0.19 | 0.19 mg/l |
| 10 Apr 2025, 11:25 | 0.014 | 0.014 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1017 µS/cm
Sampled 2 Sep 2026, 29 days ago · 13 results banked
Every result (13)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 10:08 | 1017 | 1017 µS/cm |
| 19 Aug 2026, 14:02 | 1028 | 1028 µS/cm |
| 29 Jul 2026, 09:59 | 988 | 988 µS/cm |
| 19 Jun 2026, 10:33 | 935 | 935 µS/cm |
| 11 May 2026, 08:36 | 946 | 946 µS/cm |
| 30 Apr 2026, 11:36 | 955 | 955 µS/cm |
| 26 Mar 2026, 11:14 | 951 | 951 µS/cm |
| 3 Feb 2026, 10:43 | 725 | 725 µS/cm |
| 6 Jan 2026, 10:46 | 1112 | 1112 µS/cm |
| 4 Dec 2025, 11:00 | 974 | 974 µS/cm |
| 18 Nov 2025, 10:05 | 827 | 827 µS/cm |
| 9 Oct 2025, 11:52 | 1042 | 1042 µS/cm |
| 10 Apr 2025, 11:25 | 965 | 965 µS/cm |
Everything measured here
18 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 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 13 | Apr 2025 – Sep 2026 | 80.1% 2 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 13 | Apr 2025 – Sep 2026 | 7.85 mg/l 2 Sep 2026 |
| Temperature of Water 0076 | River water | 13 | Apr 2025 – Sep 2026 | 16.2 °C 2 Sep 2026 |
| pH 0061 | River water | 13 | Apr 2025 – Sep 2026 | 7.96 2 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 13 | Apr 2025 – Sep 2026 | below 0.03 mg/l 2 Sep 2026 |
| Nitrate as N 0117 | River water | 13 | Apr 2025 – Sep 2026 | 3.19 mg/l 2 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 13 | Apr 2025 – Sep 2026 | 0.085 mg/l 2 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 13 | Apr 2025 – Sep 2026 | 1017 µS/cm 2 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 13 | Apr 2025 – Sep 2026 | 290 mg/l 2 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 13 | Apr 2025 – Sep 2026 | below 0.00079 mg/l 2 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 6 | Apr 2026 – Sep 2026 | below 3 mg/l 2 Sep 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 6 | Apr 2026 – Sep 2026 | 13 mg/l 2 Sep 2026 |
| Chloride 0172 | River water | 6 | Apr 2026 – Sep 2026 | 92 mg/l 2 Sep 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 6 | Apr 2026 – Sep 2026 | 3 µg/l 2 Sep 2026 |
| Nitrite as N 0118 | River water | 13 | Apr 2025 – Sep 2026 | 0.014 mg/l 2 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 13 | Apr 2025 – Sep 2026 | 3.2 mg/l 2 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 6 | Apr 2026 – Sep 2026 | 12 mg/l 2 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Apr 2026 – Sep 2026 | 3.2 mg/l 2 Sep 2026 |
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.