Dobeller Drain at Dutch River confluence (Tidal Don)
EA name: DOBELLER DRAIN AT DUTCH RIVER CONFLUENCE (also listed as “DOBELLER DRAIN AT DUTCH RIVER CONFLUENCE (TIDAL DON)”)
Environment Agency sampling point NE-49300217 · 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
- 10 Mar 2025, 08:2519 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 8 since 20 Jun 2024 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 471012, 421518As published, to the nearest 1 m. Open in a map
- River, by its own name
- Dobeller Drain
- River, by the map
- Dobeller DrainPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Blacktoft On the River Ouse · 16 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (8 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.5%
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 93.5 | 93.5% |
| 12 Feb 2025, 11:25 | 66.2 | 66.2% |
| 29 Jan 2025, 08:03 | 71 | 71% |
| 2 Oct 2024, 11:52 | 64.4 | 64.4% |
| 10 Sep 2024, 10:52 | 73.5 | 73.5% |
| 9 Aug 2024, 12:36 | 120.8 | 120.8% |
| 17 Jul 2024, 10:16 | 74.6 | 74.6% |
| 20 Jun 2024, 10:50 | 91.2 | 91.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.2 mg/l
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 11.2 | 11.2 mg/l |
| 12 Feb 2025, 11:25 | 8.51 | 8.51 mg/l |
| 29 Jan 2025, 08:03 | 9.03 | 9.03 mg/l |
| 2 Oct 2024, 11:52 | 6.89 | 6.89 mg/l |
| 10 Sep 2024, 10:52 | 7.54 | 7.54 mg/l |
| 9 Aug 2024, 12:36 | 11.2 | 11.2 mg/l |
| 17 Jul 2024, 10:16 | 7.21 | 7.21 mg/l |
| 20 Jun 2024, 10:50 | 8.92 | 8.92 mg/l |
Water temperature
code 0076 · °C
7.6 °C
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 7.6 | 7.6 °C |
| 12 Feb 2025, 11:25 | 4.7 | 4.7 °C |
| 29 Jan 2025, 08:03 | 5.1 | 5.1 °C |
| 2 Oct 2024, 11:52 | 12.2 | 12.2 °C |
| 10 Sep 2024, 10:52 | 14.1 | 14.1 °C |
| 9 Aug 2024, 12:36 | 19 | 19 °C |
| 17 Jul 2024, 10:16 | 16.9 | 16.9 °C |
| 20 Jun 2024, 10:50 | 16.3 | 16.3 °C |
pH
code 0061
7.92
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 7.92 | 7.92 |
| 12 Feb 2025, 11:25 | 7.71 | 7.71 |
| 29 Jan 2025, 08:03 | 7.42 | 7.42 |
| 2 Oct 2024, 11:52 | 7.76 | 7.76 |
| 10 Sep 2024, 10:52 | 7.92 | 7.92 |
| 9 Aug 2024, 12:36 | 7.98 | 7.98 |
| 17 Jul 2024, 10:16 | 7.81 | 7.81 |
| 20 Jun 2024, 10:50 | 7.85 | 7.85 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.079 mg/l
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 0.079 | 0.079 mg/l |
| 12 Feb 2025, 11:25 | 0.99 | 0.99 mg/l |
| 29 Jan 2025, 08:03 | 0.17 | 0.17 mg/l |
| 2 Oct 2024, 11:52 | 0.2 | 0.2 mg/l |
| 10 Sep 2024, 10:52 | 0.19 | 0.19 mg/l |
| 9 Aug 2024, 12:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 10:16 | 0.12 | 0.12 mg/l |
| 20 Jun 2024, 10:50 | 0.34 | 0.34 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.19 mg/l
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 3.19 | 3.19 mg/l |
| 12 Feb 2025, 11:25 | 5.17 | 5.17 mg/l |
| 29 Jan 2025, 08:03 | 9.95 | 9.95 mg/l |
| 2 Oct 2024, 11:52 | 0.65 | 0.65 mg/l |
| 10 Sep 2024, 10:52 | 0.397 | 0.397 mg/l |
| 9 Aug 2024, 12:36 | <0.196 | below 0.196 mg/l (not detected above this) |
| 17 Jul 2024, 10:16 | 0.247 | 0.247 mg/l |
| 20 Jun 2024, 10:50 | 8.33 | 8.33 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
42 mg/l
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 42 | 42 mg/l |
| 12 Feb 2025, 11:25 | 51 | 51 mg/l |
| 29 Jan 2025, 08:03 | 0.45 | 0.45 mg/l |
| 2 Oct 2024, 11:52 | 34 | 34 mg/l |
| 10 Sep 2024, 10:52 | 57 | 57 mg/l |
| 9 Aug 2024, 12:36 | 85 | 85 mg/l |
| 17 Jul 2024, 10:16 | 70 | 70 mg/l |
| 20 Jun 2024, 10:50 | 0.73 | 0.73 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
9424 µS/cm
Sampled 10 Mar 2025, 19 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 08:25 | 9424 | 9424 µS/cm |
| 12 Feb 2025, 11:25 | 10582 | 10582 µS/cm |
| 29 Jan 2025, 08:03 | 734 | 734 µS/cm |
| 2 Oct 2024, 11:52 | 9518 | 9518 µS/cm |
| 10 Sep 2024, 10:52 | 13722 | 13722 µS/cm |
| 9 Aug 2024, 12:36 | 14982 | 14982 µS/cm |
| 17 Jul 2024, 10:16 | 11431 | 11431 µS/cm |
| 20 Jun 2024, 10:50 | 912 | 912 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 | 8 | Jun 2024 – Mar 2025 | 93.5% 10 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 8 | Jun 2024 – Mar 2025 | 11.2 mg/l 10 Mar 2025 |
| Temperature of Water 0076 | River water | 8 | Jun 2024 – Mar 2025 | 7.6 °C 10 Mar 2025 |
| pH 0061 | River water | 8 | Jun 2024 – Mar 2025 | 7.92 10 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 8 | Jun 2024 – Mar 2025 | 0.079 mg/l 10 Mar 2025 |
| Nitrate as N 0117 | River water | 8 | Jun 2024 – Mar 2025 | 3.19 mg/l 10 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 8 | Jun 2024 – Mar 2025 | 42 mg/l 10 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 8 | Jun 2024 – Mar 2025 | 9424 µS/cm 10 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 8 | Jun 2024 – Mar 2025 | 470 mg/l 10 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 8 | Jun 2024 – Mar 2025 | 0.00101 mg/l 10 Mar 2025 |
| Nitrite as N 0118 | River water | 8 | Jun 2024 – Mar 2025 | 0.007 mg/l 10 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 8 | Jun 2024 – Mar 2025 | 3.2 mg/l 10 Mar 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.