Anderby Main Drain
EA name: ANDERBY MAIN DRAIN
Environment Agency sampling point AN-ANDEBYDR · 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
- 9 Sep 2026, 09:3922 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 28 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 Environmental monitoring statutory (EU directives)
- Where
- National Grid 554550, 376060As published, to the nearest 10 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Main DrainPlaced by position alone, on a line whose map name differs from its own, 5 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) (23 samples)
Monitoring (national agency policy) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
70.8%
Sampled 9 Sep 2026, 22 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | 70.8 | 70.8% |
| 26 Aug 2026, 11:23 | 107.8 | 107.8% |
| 3 Jul 2026, 11:12 | 69.7 | 69.7% |
| 9 Jun 2026, 10:32 | 113.3 | 113.3% |
| 15 May 2026, 09:26 | 123.4 | 123.4% |
| 27 Apr 2026, 09:54 | 145.7 | 145.7% |
| 13 Mar 2026, 09:13 | 99.8 | 99.8% |
| 9 Feb 2026, 11:10 | 89.1 | 89.1% |
| 14 Jan 2026, 10:06 | 81.3 | 81.3% |
| 5 Dec 2025, 09:11 | 86.8 | 86.8% |
| 7 Nov 2025, 07:54 | 97.9 | 97.9% |
| 6 Oct 2025, 08:47 | 96.4 | 96.4% |
| 11 Sep 2025, 10:49 | 115.6 | 115.6% |
| 6 Aug 2025, 08:22 | 107.7 | 107.7% |
| 9 Jul 2025, 08:29 | 103.8 | 103.8% |
| 3 Jun 2025, 07:49 | 110.2 | 110.2% |
| 8 May 2025, 09:59 | 142.8 | 142.8% |
| 7 Apr 2025, 09:07 | 114.7 | 114.7% |
| 7 Mar 2025, 07:43 | 127.2 | 127.2% |
| 7 Feb 2025, 08:32 | 105.1 | 105.1% |
| 20 Jan 2025, 11:08 | 83.6 | 83.6% |
| 9 Dec 2024, 12:35 | 86.8 | 86.8% |
| 19 Nov 2024, 11:13 | 100.8 | 100.8% |
| 16 Oct 2024, 11:04 | 101.2 | 101.2% |
| 16 Sep 2024, 09:06 | 108.6 | 108.6% |
| 21 Aug 2024, 08:58 | 98.1 | 98.1% |
| 16 Jul 2024, 09:27 | 77.4 | 77.4% |
| 18 Jun 2024, 08:57 | 159.4 | 159.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.03 mg/l
Sampled 9 Sep 2026, 22 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | 7.03 | 7.03 mg/l |
| 26 Aug 2026, 11:23 | 9.95 | 9.95 mg/l |
| 3 Jul 2026, 11:12 | 6.36 | 6.36 mg/l |
| 9 Jun 2026, 10:32 | 11.2 | 11.2 mg/l |
| 15 May 2026, 09:26 | 13.1 | 13.1 mg/l |
| 27 Apr 2026, 09:54 | 15 | 15 mg/l |
| 13 Mar 2026, 09:13 | 11.7 | 11.7 mg/l |
| 9 Feb 2026, 11:10 | 10.8 | 10.8 mg/l |
| 14 Jan 2026, 10:06 | 10.7 | 10.7 mg/l |
| 5 Dec 2025, 09:11 | 11.1 | 11.1 mg/l |
| 7 Nov 2025, 07:54 | 10.7 | 10.7 mg/l |
| 6 Oct 2025, 08:47 | 10.4 | 10.4 mg/l |
| 11 Sep 2025, 10:49 | 11.2 | 11.2 mg/l |
| 6 Aug 2025, 08:22 | 10.5 | 10.5 mg/l |
| 9 Jul 2025, 08:29 | 9.9 | 9.9 mg/l |
| 3 Jun 2025, 07:49 | 11 | 11 mg/l |
| 8 May 2025, 09:59 | 14.9 | 14.9 mg/l |
| 7 Apr 2025, 09:07 | 12.8 | 12.8 mg/l |
| 7 Mar 2025, 07:43 | 15.3 | 15.3 mg/l |
| 7 Feb 2025, 08:32 | 14 | 14 mg/l |
| 20 Jan 2025, 11:08 | 11 | 11 mg/l |
| 9 Dec 2024, 12:35 | 10.3 | 10.3 mg/l |
| 19 Nov 2024, 11:13 | 12.9 | 12.9 mg/l |
| 16 Oct 2024, 11:04 | 11.1 | 11.1 mg/l |
| 16 Sep 2024, 09:06 | 11.5 | 11.5 mg/l |
| 21 Aug 2024, 08:58 | 9.64 | 9.64 mg/l |
| 16 Jul 2024, 09:27 | 7.87 | 7.87 mg/l |
| 18 Jun 2024, 08:57 | 15.4 | 15.4 mg/l |
Water temperature
code 0076 · °C
15.6 °C
Sampled 9 Sep 2026, 22 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | 15.6 | 15.6 °C |
| 26 Aug 2026, 11:23 | 19.1 | 19.1 °C |
| 3 Jul 2026, 11:12 | 19.7 | 19.7 °C |
| 9 Jun 2026, 10:32 | 15.8 | 15.8 °C |
| 15 May 2026, 09:26 | 12.4 | 12.4 °C |
| 27 Apr 2026, 09:54 | 13.9 | 13.9 °C |
| 13 Mar 2026, 09:13 | 8.3 | 8.3 °C |
| 9 Feb 2026, 11:10 | 7.1 | 7.1 °C |
| 14 Jan 2026, 10:06 | 3.9 | 3.9 °C |
| 5 Dec 2025, 09:11 | 5 | 5 °C |
| 7 Nov 2025, 07:54 | 11.2 | 11.2 °C |
| 6 Oct 2025, 08:47 | 11.8 | 11.8 °C |
| 11 Sep 2025, 10:49 | 16.7 | 16.7 °C |
| 6 Aug 2025, 08:22 | 16.3 | 16.3 °C |
| 9 Jul 2025, 08:29 | 17.5 | 17.5 °C |
| 3 Jun 2025, 07:49 | 15.3 | 15.3 °C |
| 8 May 2025, 09:59 | 13.2 | 13.2 °C |
| 7 Apr 2025, 09:07 | 10.5 | 10.5 °C |
| 7 Mar 2025, 07:43 | 7.4 | 7.4 °C |
| 7 Feb 2025, 08:32 | 3.4 | 3.4 °C |
| 20 Jan 2025, 11:08 | 3.7 | 3.7 °C |
| 9 Dec 2024, 12:35 | 7.7 | 7.7 °C |
| 19 Nov 2024, 11:13 | 5 | 5 °C |
| 16 Oct 2024, 11:04 | 11.2 | 11.2 °C |
| 16 Sep 2024, 09:06 | 12.8 | 12.8 °C |
| 21 Aug 2024, 08:58 | 16.1 | 16.1 °C |
| 16 Jul 2024, 09:27 | 14.5 | 14.5 °C |
| 18 Jun 2024, 08:57 | 16.9 | 16.9 °C |
pH
code 0061
7.56
Sampled 9 Sep 2026, 22 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | 7.56 | 7.56 |
| 26 Aug 2026, 11:23 | 7.92 | 7.92 |
| 3 Jul 2026, 11:12 | 7.76 | 7.76 |
| 9 Jun 2026, 10:32 | 9.21 | 9.21 |
| 15 May 2026, 09:26 | 9.63 | 9.63 |
| 27 Apr 2026, 09:54 | 9.18 | 9.18 |
| 13 Mar 2026, 09:13 | 8.48 | 8.48 |
| 9 Feb 2026, 11:10 | 7.64 | 7.64 |
| 14 Jan 2026, 10:06 | 7.81 | 7.81 |
| 5 Dec 2025, 09:11 | 7.84 | 7.84 |
| 7 Nov 2025, 07:54 | 8.45 | 8.45 |
| 6 Oct 2025, 08:47 | 8.27 | 8.27 |
| 11 Sep 2025, 10:49 | 8.73 | 8.73 |
| 6 Aug 2025, 08:22 | 8.75 | 8.75 |
| 9 Jul 2025, 08:29 | 9.52 | 9.52 |
| 3 Jun 2025, 07:49 | 9.47 | 9.47 |
| 8 May 2025, 09:59 | 8.88 | 8.88 |
| 7 Apr 2025, 09:07 | 8.43 | 8.43 |
| 7 Mar 2025, 07:43 | 8.13 | 8.13 |
| 7 Feb 2025, 08:32 | 8.21 | 8.21 |
| 20 Jan 2025, 11:08 | 7.72 | 7.72 |
| 9 Dec 2024, 12:35 | 7.6 | 7.6 |
| 19 Nov 2024, 11:13 | 8.33 | 8.33 |
| 16 Oct 2024, 11:04 | 8.08 | 8.08 |
| 16 Sep 2024, 09:06 | 8.1 | 8.1 |
| 21 Aug 2024, 08:58 | 8.36 | 8.36 |
| 16 Jul 2024, 09:27 | 7.6 | 7.6 |
| 18 Jun 2024, 08:57 | 8.46 | 8.46 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 9 Sep 2026, 22 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Aug 2026, 11:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2026, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jun 2026, 10:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 May 2026, 09:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Apr 2026, 09:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2026, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jan 2026, 10:06 | 0.065 | 0.065 mg/l |
| 5 Dec 2025, 09:11 | 0.076 | 0.076 mg/l |
| 7 Nov 2025, 07:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2025, 08:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Sep 2025, 10:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Aug 2025, 08:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jul 2025, 08:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2025, 07:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 May 2025, 09:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2025, 07:43 | 0.03 | 0.03 mg/l |
| 7 Feb 2025, 08:32 | 0.058 | 0.058 mg/l |
| 20 Jan 2025, 11:08 | 0.17 | 0.17 mg/l |
| 9 Dec 2024, 12:35 | 0.09 | 0.09 mg/l |
| 19 Nov 2024, 11:13 | 0.098 | 0.098 mg/l |
| 16 Oct 2024, 11:04 | 0.045 | 0.045 mg/l |
| 16 Sep 2024, 09:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2024, 08:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2024, 09:27 | 0.095 | 0.095 mg/l |
| 18 Jun 2024, 08:57 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 9 Sep 2026, 22 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | <0.196 | below 0.196 mg/l (not detected above this) |
| 26 Aug 2026, 11:23 | <0.196 | below 0.196 mg/l (not detected above this) |
| 3 Jul 2026, 11:12 | <0.196 | below 0.196 mg/l (not detected above this) |
| 9 Jun 2026, 10:32 | <0.196 | below 0.196 mg/l (not detected above this) |
| 15 May 2026, 09:26 | <0.196 | below 0.196 mg/l (not detected above this) |
| 27 Apr 2026, 09:54 | 0.199 | 0.199 mg/l |
| 13 Mar 2026, 09:13 | 5.76 | 5.76 mg/l |
| 9 Feb 2026, 11:10 | 11 | 11 mg/l |
| 14 Jan 2026, 10:06 | 12 | 12 mg/l |
| 5 Dec 2025, 09:11 | 19.9 | 19.9 mg/l |
| 7 Nov 2025, 07:54 | <0.196 | below 0.196 mg/l (not detected above this) |
| 6 Oct 2025, 08:47 | <0.196 | below 0.196 mg/l (not detected above this) |
| 11 Sep 2025, 10:49 | <0.196 | below 0.196 mg/l (not detected above this) |
| 6 Aug 2025, 08:22 | <0.196 | below 0.196 mg/l (not detected above this) |
| 9 Jul 2025, 08:29 | 0.196 | 0.196 mg/l |
| 3 Jun 2025, 07:49 | <0.196 | below 0.196 mg/l (not detected above this) |
| 8 May 2025, 09:59 | <0.196 | below 0.196 mg/l (not detected above this) |
| 7 Mar 2025, 07:43 | 3.99 | 3.99 mg/l |
| 7 Feb 2025, 08:32 | 4.89 | 4.89 mg/l |
| 20 Jan 2025, 11:08 | 4.08 | 4.08 mg/l |
| 9 Dec 2024, 12:35 | 11 | 11 mg/l |
| 19 Nov 2024, 11:13 | 1.17 | 1.17 mg/l |
| 16 Oct 2024, 11:04 | 3.87 | 3.87 mg/l |
| 16 Sep 2024, 09:06 | <0.196 | below 0.196 mg/l (not detected above this) |
| 21 Aug 2024, 08:58 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Jul 2024, 09:27 | 2.97 | 2.97 mg/l |
| 18 Jun 2024, 08:57 | 1.08 | 1.08 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.058 mg/l
Sampled 9 Sep 2026, 22 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | 0.058 | 0.058 mg/l |
| 26 Aug 2026, 11:23 | 0.017 | 0.017 mg/l |
| 3 Jul 2026, 11:12 | 0.17 | 0.17 mg/l |
| 9 Jun 2026, 10:32 | 0.045 | 0.045 mg/l |
| 15 May 2026, 09:26 | 0.018 | 0.018 mg/l |
| 27 Apr 2026, 09:54 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Mar 2026, 09:13 | 0.018 | 0.018 mg/l |
| 9 Feb 2026, 11:10 | 0.04 | 0.04 mg/l |
| 14 Jan 2026, 10:06 | 0.061 | 0.061 mg/l |
| 5 Dec 2025, 09:11 | 0.042 | 0.042 mg/l |
| 7 Nov 2025, 07:54 | <0.01 | below 0.01 mg/l (not detected above this) |
| 6 Oct 2025, 08:47 | 0.031 | 0.031 mg/l |
| 11 Sep 2025, 10:49 | 0.11 | 0.11 mg/l |
| 6 Aug 2025, 08:22 | 0.079 | 0.079 mg/l |
| 9 Jul 2025, 08:29 | 0.26 | 0.26 mg/l |
| 3 Jun 2025, 07:49 | <0.01 | below 0.01 mg/l (not detected above this) |
| 8 May 2025, 09:59 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Mar 2025, 07:43 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Feb 2025, 08:32 | 0.03 | 0.03 mg/l |
| 20 Jan 2025, 11:08 | 0.048 | 0.048 mg/l |
| 9 Dec 2024, 12:35 | 0.095 | 0.095 mg/l |
| 19 Nov 2024, 11:13 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Oct 2024, 11:04 | 0.014 | 0.014 mg/l |
| 16 Sep 2024, 09:06 | 0.085 | 0.085 mg/l |
| 21 Aug 2024, 08:58 | 0.022 | 0.022 mg/l |
| 16 Jul 2024, 09:27 | 0.2 | 0.2 mg/l |
| 18 Jun 2024, 08:57 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
458 µS/cm
Sampled 9 Sep 2026, 22 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Sep 2026, 09:39 | 458 | 458 µS/cm |
| 26 Aug 2026, 11:23 | 605 | 605 µS/cm |
| 3 Jul 2026, 11:12 | 515 | 515 µS/cm |
| 9 Jun 2026, 10:32 | 547 | 547 µS/cm |
| 15 May 2026, 09:26 | 880 | 880 µS/cm |
| 27 Apr 2026, 09:54 | 1030 | 1030 µS/cm |
| 13 Mar 2026, 09:13 | 1342 | 1342 µS/cm |
| 9 Feb 2026, 11:10 | 1016 | 1016 µS/cm |
| 14 Jan 2026, 10:06 | 1089 | 1089 µS/cm |
| 5 Dec 2025, 09:11 | 1029 | 1029 µS/cm |
| 7 Nov 2025, 07:54 | 1785 | 1785 µS/cm |
| 6 Oct 2025, 08:47 | 2184 | 2184 µS/cm |
| 11 Sep 2025, 10:49 | 2089 | 2089 µS/cm |
| 6 Aug 2025, 08:22 | 2574 | 2574 µS/cm |
| 9 Jul 2025, 08:29 | 1918 | 1918 µS/cm |
| 3 Jun 2025, 07:49 | 498 | 498 µS/cm |
| 8 May 2025, 09:59 | 2136 | 2136 µS/cm |
| 7 Apr 2025, 09:07 | 1228 | 1228 µS/cm |
| 7 Mar 2025, 07:43 | 1327 | 1327 µS/cm |
| 7 Feb 2025, 08:32 | 1344 | 1344 µS/cm |
| 20 Jan 2025, 11:08 | 1317 | 1317 µS/cm |
| 9 Dec 2024, 12:35 | 796 | 796 µS/cm |
| 19 Nov 2024, 11:13 | 999 | 999 µS/cm |
| 16 Oct 2024, 11:04 | 946 | 946 µS/cm |
| 16 Sep 2024, 09:06 | 792 | 792 µS/cm |
| 21 Aug 2024, 08:58 | 1575 | 1575 µS/cm |
| 16 Jul 2024, 09:27 | 1468 | 1468 µS/cm |
| 18 Jun 2024, 08:57 | 1130 | 1130 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 28 | Jun 2024 – Sep 2026 | 70.8% 9 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Jun 2024 – Sep 2026 | 7.03 mg/l 9 Sep 2026 |
| Temperature of Water 0076 | River water | 28 | Jun 2024 – Sep 2026 | 15.6 °C 9 Sep 2026 |
| pH 0061 | River water | 28 | Jun 2024 – Sep 2026 | 7.56 9 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jun 2024 – Sep 2026 | below 0.03 mg/l 9 Sep 2026 |
| Nitrate as N 0117 | River water | 27 | Jun 2024 – Sep 2026 | below 0.196 mg/l 9 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Jun 2024 – Sep 2026 | 0.058 mg/l 9 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Jun 2024 – Sep 2026 | 458 µS/cm 9 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Sep 2026 | 110 mg/l 9 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jun 2024 – Sep 2026 | below 0.0003 mg/l 9 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 2.8 mg/l 15 May 2026 |
| Nitrite as N 0118 | River water | 27 | Jun 2024 – Sep 2026 | below 0.004 mg/l 9 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jun 2024 – Sep 2026 | below 0.2 mg/l 9 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.