River Dove Thorndon Bridge
EA name: R.DOVE THORNDON BRIDGE
Environment Agency sampling point AN-DOV040 · 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
- 18 Aug 2026, 10:4544 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 6 since 7 Apr 2026 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 613100, 270500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Dove
- River, by the map
- River DovePlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Needham On the River Waveney · 19 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
82.8%
Sampled 18 Aug 2026, 44 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 82.8 | 82.8% |
| 14 Jul 2026, 12:05 | 85.8 | 85.8% |
| 9 Jun 2026, 09:49 | 70.4 | 70.4% |
| 21 May 2026, 12:26 | 92.2 | 92.2% |
| 20 Apr 2026, 13:18 | 97.1 | 97.1% |
| 7 Apr 2026, 13:42 | 101.9 | 101.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.4 mg/l
Sampled 18 Aug 2026, 44 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 8.4 | 8.4 mg/l |
| 14 Jul 2026, 12:05 | 8.56 | 8.56 mg/l |
| 9 Jun 2026, 09:49 | 7.42 | 7.42 mg/l |
| 21 May 2026, 12:26 | 9.42 | 9.42 mg/l |
| 20 Apr 2026, 13:18 | 10.8 | 10.8 mg/l |
| 7 Apr 2026, 13:42 | 11.3 | 11.3 mg/l |
Water temperature
code 0076 · °C
14.6 °C
Sampled 18 Aug 2026, 44 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 14.6 | 14.6 °C |
| 14 Jul 2026, 12:05 | 15.4 | 15.4 °C |
| 9 Jun 2026, 09:49 | 12.9 | 12.9 °C |
| 21 May 2026, 12:26 | 14.3 | 14.3 °C |
| 20 Apr 2026, 13:18 | 10.6 | 10.6 °C |
| 7 Apr 2026, 13:42 | 10.6 | 10.6 °C |
pH
code 0061
7.9
Sampled 18 Aug 2026, 44 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 7.9 | 7.9 |
| 14 Jul 2026, 12:05 | 7.79 | 7.79 |
| 9 Jun 2026, 09:49 | 7.57 | 7.57 |
| 21 May 2026, 12:26 | 7.65 | 7.65 |
| 20 Apr 2026, 13:18 | 7.72 | 7.72 |
| 7 Apr 2026, 13:42 | 7.97 | 7.97 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 18 Aug 2026, 44 days ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jul 2026, 12:05 | 0.043 | 0.043 mg/l |
| 9 Jun 2026, 09:49 | 0.084 | 0.084 mg/l |
| 21 May 2026, 12:26 | 0.066 | 0.066 mg/l |
| 20 Apr 2026, 13:18 | 0.034 | 0.034 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.309 mg/l
Sampled 18 Aug 2026, 44 days ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 0.309 | 0.309 mg/l |
| 14 Jul 2026, 12:05 | 0.269 | 0.269 mg/l |
| 9 Jun 2026, 09:49 | 0.835 | 0.835 mg/l |
| 21 May 2026, 12:26 | 2.37 | 2.37 mg/l |
| 20 Apr 2026, 13:18 | 4.27 | 4.27 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.067 mg/l
Sampled 18 Aug 2026, 44 days ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 0.067 | 0.067 mg/l |
| 14 Jul 2026, 12:05 | 0.079 | 0.079 mg/l |
| 9 Jun 2026, 09:49 | 0.13 | 0.13 mg/l |
| 21 May 2026, 12:26 | 0.15 | 0.15 mg/l |
| 20 Apr 2026, 13:18 | 0.22 | 0.22 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1049 µS/cm
Sampled 18 Aug 2026, 44 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 10:45 | 1049 | 1049 µS/cm |
| 14 Jul 2026, 12:05 | 1050 | 1050 µS/cm |
| 9 Jun 2026, 09:49 | 1011 | 1011 µS/cm |
| 21 May 2026, 12:26 | 1110 | 1110 µS/cm |
| 20 Apr 2026, 13:18 | 1201 | 1201 µS/cm |
| 7 Apr 2026, 13:42 | 1191 | 1191 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | Apr 2026 – Aug 2026 | 82.8% 18 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 6 | Apr 2026 – Aug 2026 | 8.4 mg/l 18 Aug 2026 |
| Temperature of Water 0076 | River water | 6 | Apr 2026 – Aug 2026 | 14.6 °C 18 Aug 2026 |
| pH 0061 | River water | 6 | Apr 2026 – Aug 2026 | 7.9 18 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 5 | Apr 2026 – Aug 2026 | below 0.03 mg/l 18 Aug 2026 |
| Nitrate as N 0117 | River water | 5 | Apr 2026 – Aug 2026 | 0.309 mg/l 18 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 5 | Apr 2026 – Aug 2026 | 0.067 mg/l 18 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 6 | Apr 2026 – Aug 2026 | 1049 µS/cm 18 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 5 | Apr 2026 – Aug 2026 | 310 mg/l 18 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 5 | Apr 2026 – Aug 2026 | below 0.00061 mg/l 18 Aug 2026 |
| Nitrite as N 0118 | River water | 5 | Apr 2026 – Aug 2026 | 0.011 mg/l 18 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 5 | Apr 2026 – Aug 2026 | 0.32 mg/l 18 Aug 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.