Skellingthorpe Main Drain downstream of sewage treatment works
EA name: SKELLINGTHORPE MAIN DRN.D/S STW
Environment Agency sampling point AN-LKS19 · 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
- 8 Sep 2026, 08:5123 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 5 Oct 2023 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 495309, 371377As published, to the nearest 1 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, 3 m from the line.
- Next gauge downstream
- Brayford Pool On the River Witham · 3.0 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (23 samples)
Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
30.8%
Sampled 8 Sep 2026, 23 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 30.8 | 30.8% |
| 4 Aug 2026, 10:13 | 40.7 | 40.7% |
| 2 Jul 2026, 15:03 | 40.9 | 40.9% |
| 16 Jun 2026, 13:39 | 118.8 | 118.8% |
| 29 May 2026, 09:04 | 45.5 | 45.5% |
| 15 Apr 2026, 12:10 | 89.5 | 89.5% |
| 20 Mar 2026, 12:03 | 106.4 | 106.4% |
| 3 Feb 2026, 13:41 | 82.9 | 82.9% |
| 6 Jan 2026, 13:33 | 78.6 | 78.6% |
| 8 Dec 2025, 11:11 | 81.1 | 81.1% |
| 13 Nov 2025, 11:51 | 70.1 | 70.1% |
| 13 Oct 2025, 11:52 | 69.2 | 69.2% |
| 1 Apr 2025, 10:00 | 98.1 | 98.1% |
| 6 Mar 2025, 09:31 | 88.5 | 88.5% |
| 17 Feb 2025, 10:38 | 78.5 | 78.5% |
| 8 Jan 2025, 13:46 | 71.5 | 71.5% |
| 12 Dec 2024, 12:10 | 67.9 | 67.9% |
| 5 Nov 2024, 12:49 | 65.5 | 65.5% |
| 10 Oct 2024, 11:36 | 92.6 | 92.6% |
| 3 Sep 2024, 13:38 | 132.4 | 132.4% |
| 12 Aug 2024, 10:37 | 102.3 | 102.3% |
| 5 Jul 2024, 09:37 | 117.5 | 117.5% |
| 12 Jun 2024, 11:05 | 162.3 | 162.3% |
| 5 Mar 2024, 14:30 | 84.3 | 84.3% |
| 7 Feb 2024, 10:57 | 73.9 | 73.9% |
| 9 Jan 2024, 12:52 | 76.2 | 76.2% |
| 4 Dec 2023, 14:00 | 81.7 | 81.7% |
| 7 Nov 2023, 12:04 | 59.6 | 59.6% |
| 5 Oct 2023, 11:21 | 76.6 | 76.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
3.06 mg/l
Sampled 8 Sep 2026, 23 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 3.06 | 3.06 mg/l |
| 4 Aug 2026, 10:13 | 3.74 | 3.74 mg/l |
| 2 Jul 2026, 15:03 | 3.67 | 3.67 mg/l |
| 16 Jun 2026, 13:39 | 11.2 | 11.2 mg/l |
| 29 May 2026, 09:04 | 4.09 | 4.09 mg/l |
| 15 Apr 2026, 12:10 | 9.28 | 9.28 mg/l |
| 20 Mar 2026, 12:03 | 11.7 | 11.7 mg/l |
| 3 Feb 2026, 13:41 | 10.5 | 10.5 mg/l |
| 6 Jan 2026, 13:33 | 11.4 | 11.4 mg/l |
| 8 Dec 2025, 11:11 | 9.47 | 9.47 mg/l |
| 13 Nov 2025, 11:51 | 7.57 | 7.57 mg/l |
| 13 Oct 2025, 11:52 | 7.36 | 7.36 mg/l |
| 1 Apr 2025, 10:00 | 10.9 | 10.9 mg/l |
| 6 Mar 2025, 09:31 | 10.8 | 10.8 mg/l |
| 17 Feb 2025, 10:38 | 10.2 | 10.2 mg/l |
| 8 Jan 2025, 13:46 | 9.56 | 9.56 mg/l |
| 12 Dec 2024, 12:10 | 8.05 | 8.05 mg/l |
| 5 Nov 2024, 12:49 | 7.17 | 7.17 mg/l |
| 10 Oct 2024, 11:36 | 9.93 | 9.93 mg/l |
| 3 Sep 2024, 13:38 | 12 | 12 mg/l |
| 12 Aug 2024, 10:37 | 9.33 | 9.33 mg/l |
| 5 Jul 2024, 09:37 | 11.7 | 11.7 mg/l |
| 12 Jun 2024, 11:05 | 16.3 | 16.3 mg/l |
| 5 Mar 2024, 14:30 | 9.9 | 9.9 mg/l |
| 7 Feb 2024, 10:57 | 8.91 | 8.91 mg/l |
| 9 Jan 2024, 12:52 | 10 | 10 mg/l |
| 4 Dec 2023, 14:00 | 10.5 | 10.5 mg/l |
| 7 Nov 2023, 12:04 | 6.78 | 6.78 mg/l |
| 5 Oct 2023, 11:21 | 7.91 | 7.91 mg/l |
Water temperature
code 0076 · °C
15.6 °C
Sampled 8 Sep 2026, 23 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 15.6 | 15.6 °C |
| 4 Aug 2026, 10:13 | 19.3 | 19.3 °C |
| 2 Jul 2026, 15:03 | 20.5 | 20.5 °C |
| 16 Jun 2026, 13:39 | 17.9 | 17.9 °C |
| 29 May 2026, 09:04 | 20.4 | 20.4 °C |
| 15 Apr 2026, 12:10 | 13.6 | 13.6 °C |
| 20 Mar 2026, 12:03 | 11.2 | 11.2 °C |
| 3 Feb 2026, 13:41 | 5.4 | 5.4 °C |
| 6 Jan 2026, 13:33 | 0.1 | 0.1 °C |
| 8 Dec 2025, 11:11 | 8.5 | 8.5 °C |
| 13 Nov 2025, 11:51 | 11.8 | 11.8 °C |
| 13 Oct 2025, 11:52 | 12.5 | 12.5 °C |
| 1 Apr 2025, 10:00 | 10.4 | 10.4 °C |
| 6 Mar 2025, 09:31 | 6.8 | 6.8 °C |
| 17 Feb 2025, 10:38 | 4.2 | 4.2 °C |
| 8 Jan 2025, 13:46 | 3.2 | 3.2 °C |
| 12 Dec 2024, 12:10 | 7.9 | 7.9 °C |
| 5 Nov 2024, 12:49 | 11.2 | 11.2 °C |
| 10 Oct 2024, 11:36 | 12.1 | 12.1 °C |
| 3 Sep 2024, 13:38 | 20 | 20 °C |
| 12 Aug 2024, 10:37 | 19.7 | 19.7 °C |
| 5 Jul 2024, 09:37 | 15.4 | 15.4 °C |
| 12 Jun 2024, 11:05 | 15 | 15 °C |
| 5 Mar 2024, 14:30 | 8.3 | 8.3 °C |
| 7 Feb 2024, 10:57 | 7.2 | 7.2 °C |
| 9 Jan 2024, 12:52 | 3.8 | 3.8 °C |
| 4 Dec 2023, 14:00 | 4.7 | 4.7 °C |
| 7 Nov 2023, 12:04 | 9.6 | 9.6 °C |
| 5 Oct 2023, 11:21 | 13.8 | 13.8 °C |
pH
code 0061
7.25
Sampled 8 Sep 2026, 23 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 7.25 | 7.25 |
| 4 Aug 2026, 10:13 | 7.27 | 7.27 |
| 2 Jul 2026, 15:03 | 7.56 | 7.56 |
| 16 Jun 2026, 13:39 | 8.37 | 8.37 |
| 29 May 2026, 09:04 | 7.61 | 7.61 |
| 15 Apr 2026, 12:10 | 7.51 | 7.51 |
| 20 Mar 2026, 12:03 | 7.52 | 7.52 |
| 3 Feb 2026, 13:41 | 7.69 | 7.69 |
| 6 Jan 2026, 13:33 | 8.04 | 8.04 |
| 8 Dec 2025, 11:11 | 7.5 | 7.5 |
| 13 Nov 2025, 11:51 | 7.17 | 7.17 |
| 13 Oct 2025, 11:52 | 7.3 | 7.3 |
| 1 Apr 2025, 10:00 | 7.74 | 7.74 |
| 6 Mar 2025, 09:31 | 7.54 | 7.54 |
| 17 Feb 2025, 10:38 | 7.54 | 7.54 |
| 8 Jan 2025, 13:46 | 7.31 | 7.31 |
| 12 Dec 2024, 12:10 | 7.27 | 7.27 |
| 5 Nov 2024, 12:49 | 7.23 | 7.23 |
| 10 Oct 2024, 11:36 | 7.66 | 7.66 |
| 3 Sep 2024, 13:38 | 7.92 | 7.92 |
| 12 Aug 2024, 10:37 | 7.65 | 7.65 |
| 5 Jul 2024, 09:37 | 7.83 | 7.83 |
| 12 Jun 2024, 11:05 | 8.13 | 8.13 |
| 5 Mar 2024, 14:30 | 7.46 | 7.46 |
| 7 Feb 2024, 10:57 | 7.53 | 7.53 |
| 9 Jan 2024, 12:52 | 7.45 | 7.45 |
| 4 Dec 2023, 14:00 | 7.36 | 7.36 |
| 7 Nov 2023, 12:04 | 7.39 | 7.39 |
| 5 Oct 2023, 11:21 | 7.53 | 7.53 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.22 mg/l
Sampled 8 Sep 2026, 23 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 0.22 | 0.22 mg/l |
| 4 Aug 2026, 10:13 | 0.12 | 0.12 mg/l |
| 2 Jul 2026, 15:03 | 0.12 | 0.12 mg/l |
| 16 Jun 2026, 13:39 | 0.061 | 0.061 mg/l |
| 29 May 2026, 09:04 | 0.033 | 0.033 mg/l |
| 15 Apr 2026, 12:10 | 1.2 | 1.2 mg/l |
| 20 Mar 2026, 12:03 | 0.23 | 0.23 mg/l |
| 3 Feb 2026, 13:41 | 1.1 | 1.1 mg/l |
| 6 Jan 2026, 13:33 | 0.38 | 0.38 mg/l |
| 8 Dec 2025, 11:11 | 0.044 | 0.044 mg/l |
| 13 Nov 2025, 11:51 | 0.2 | 0.2 mg/l |
| 13 Oct 2025, 11:52 | 0.35 | 0.35 mg/l |
| 6 Mar 2025, 09:31 | 0.17 | 0.17 mg/l |
| 17 Feb 2025, 10:38 | 0.28 | 0.28 mg/l |
| 8 Jan 2025, 13:46 | 0.22 | 0.22 mg/l |
| 12 Dec 2024, 12:10 | 0.41 | 0.41 mg/l |
| 5 Nov 2024, 12:49 | 0.12 | 0.12 mg/l |
| 10 Oct 2024, 11:36 | 0.47 | 0.47 mg/l |
| 3 Sep 2024, 13:38 | 0.063 | 0.063 mg/l |
| 12 Aug 2024, 10:37 | 0.11 | 0.11 mg/l |
| 5 Jul 2024, 09:37 | 0.046 | 0.046 mg/l |
| 12 Jun 2024, 11:05 | 0.04 | 0.04 mg/l |
| 5 Mar 2024, 14:30 | 1.3 | 1.3 mg/l |
| 7 Feb 2024, 10:57 | 1.6 | 1.6 mg/l |
| 9 Jan 2024, 12:52 | 0.56 | 0.56 mg/l |
| 4 Dec 2023, 14:00 | 0.31 | 0.31 mg/l |
| 7 Nov 2023, 12:04 | 0.42 | 0.42 mg/l |
| 5 Oct 2023, 11:21 | 0.071 | 0.071 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.18 mg/l
Sampled 8 Sep 2026, 23 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 0.18 | 0.18 mg/l |
| 4 Aug 2026, 10:13 | 16.5 | 16.5 mg/l |
| 2 Jul 2026, 15:03 | 13.7 | 13.7 mg/l |
| 16 Jun 2026, 13:39 | 11.8 | 11.8 mg/l |
| 29 May 2026, 09:04 | 12.7 | 12.7 mg/l |
| 15 Apr 2026, 12:10 | 7.94 | 7.94 mg/l |
| 20 Mar 2026, 12:03 | 8.31 | 8.31 mg/l |
| 3 Feb 2026, 13:41 | 9.13 | 9.13 mg/l |
| 6 Jan 2026, 13:33 | 7.75 | 7.75 mg/l |
| 8 Dec 2025, 11:11 | 8.39 | 8.39 mg/l |
| 13 Nov 2025, 11:51 | 11.9 | 11.9 mg/l |
| 13 Oct 2025, 11:52 | 9.13 | 9.13 mg/l |
| 6 Mar 2025, 09:31 | 9.93 | 9.93 mg/l |
| 17 Feb 2025, 10:38 | 12.9 | 12.9 mg/l |
| 8 Jan 2025, 13:46 | 11 | 11 mg/l |
| 12 Dec 2024, 12:10 | 9.26 | 9.26 mg/l |
| 5 Nov 2024, 12:49 | 6.78 | 6.78 mg/l |
| 10 Oct 2024, 11:36 | 6.21 | 6.21 mg/l |
| 3 Sep 2024, 13:38 | 23 | 23 mg/l |
| 12 Aug 2024, 10:37 | 4.23 | 4.23 mg/l |
| 5 Jul 2024, 09:37 | 8.43 | 8.43 mg/l |
| 12 Jun 2024, 11:05 | 8.04 | 8.04 mg/l |
| 5 Mar 2024, 14:30 | 6.41 | 6.41 mg/l |
| 7 Feb 2024, 10:57 | 5.02 | 5.02 mg/l |
| 9 Jan 2024, 12:52 | 9.91 | 9.91 mg/l |
| 4 Dec 2023, 14:00 | 5.07 | 5.07 mg/l |
| 7 Nov 2023, 12:04 | 13.9 | 13.9 mg/l |
| 5 Oct 2023, 11:21 | 7.72 | 7.72 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.079 mg/l
Sampled 8 Sep 2026, 23 days ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 0.079 | 0.079 mg/l |
| 2 Jul 2026, 15:03 | 1.9 | 1.9 mg/l |
| 16 Jun 2026, 13:39 | 1.5 | 1.5 mg/l |
| 29 May 2026, 09:04 | 0.79 | 0.79 mg/l |
| 15 Apr 2026, 12:10 | 0.59 | 0.59 mg/l |
| 20 Mar 2026, 12:03 | 0.26 | 0.26 mg/l |
| 3 Feb 2026, 13:41 | 0.17 | 0.17 mg/l |
| 6 Jan 2026, 13:33 | 0.26 | 0.26 mg/l |
| 8 Dec 2025, 11:11 | 0.075 | 0.075 mg/l |
| 13 Nov 2025, 11:51 | 0.27 | 0.27 mg/l |
| 13 Oct 2025, 11:52 | 1 | 1 mg/l |
| 6 Mar 2025, 09:31 | 0.76 | 0.76 mg/l |
| 17 Feb 2025, 10:38 | 0.62 | 0.62 mg/l |
| 8 Jan 2025, 13:46 | 0.047 | 0.047 mg/l |
| 12 Dec 2024, 12:10 | 0.22 | 0.22 mg/l |
| 5 Nov 2024, 12:49 | 0.39 | 0.39 mg/l |
| 10 Oct 2024, 11:36 | 0.43 | 0.43 mg/l |
| 3 Sep 2024, 13:38 | 4.6 | 4.6 mg/l |
| 12 Aug 2024, 10:37 | 0.33 | 0.33 mg/l |
| 5 Jul 2024, 09:37 | 1.1 | 1.1 mg/l |
| 12 Jun 2024, 11:05 | 1 | 1 mg/l |
| 5 Mar 2024, 14:30 | 0.038 | 0.038 mg/l |
| 9 Jan 2024, 12:52 | 0.015 | 0.015 mg/l |
| 4 Dec 2023, 14:00 | 0.085 | 0.085 mg/l |
| 7 Nov 2023, 12:04 | 0.24 | 0.24 mg/l |
| 5 Oct 2023, 11:21 | 0.093 | 0.093 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1055 µS/cm
Sampled 8 Sep 2026, 23 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 08:51 | 1055 | 1055 µS/cm |
| 4 Aug 2026, 10:13 | 1196 | 1196 µS/cm |
| 2 Jul 2026, 15:03 | 1120 | 1120 µS/cm |
| 16 Jun 2026, 13:39 | 1025 | 1025 µS/cm |
| 29 May 2026, 09:04 | 1151 | 1151 µS/cm |
| 15 Apr 2026, 12:10 | 1093 | 1093 µS/cm |
| 20 Mar 2026, 12:03 | 989 | 989 µS/cm |
| 3 Feb 2026, 13:41 | 972 | 972 µS/cm |
| 6 Jan 2026, 13:33 | 1134 | 1134 µS/cm |
| 8 Dec 2025, 11:11 | 574 | 574 µS/cm |
| 13 Nov 2025, 11:51 | 835 | 835 µS/cm |
| 13 Oct 2025, 11:52 | 1056 | 1056 µS/cm |
| 1 Apr 2025, 10:00 | 1051 | 1051 µS/cm |
| 6 Mar 2025, 09:31 | 1074 | 1074 µS/cm |
| 17 Feb 2025, 10:38 | 1057 | 1057 µS/cm |
| 8 Jan 2025, 13:46 | 687 | 687 µS/cm |
| 12 Dec 2024, 12:10 | 938 | 938 µS/cm |
| 5 Nov 2024, 12:49 | 994 | 994 µS/cm |
| 10 Oct 2024, 11:36 | 933 | 933 µS/cm |
| 3 Sep 2024, 13:38 | 1102 | 1102 µS/cm |
| 12 Aug 2024, 10:37 | 1084 | 1084 µS/cm |
| 5 Jul 2024, 09:37 | 1042 | 1042 µS/cm |
| 12 Jun 2024, 11:05 | 996 | 996 µS/cm |
| 5 Mar 2024, 14:30 | 948 | 948 µS/cm |
| 7 Feb 2024, 10:57 | 1065 | 1065 µS/cm |
| 9 Jan 2024, 12:52 | 923 | 923 µS/cm |
| 4 Dec 2023, 14:00 | 465 | 465 µS/cm |
| 7 Nov 2023, 12:04 | 957 | 957 µS/cm |
| 5 Oct 2023, 11:21 | 724 | 724 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 | 29 | Oct 2023 – Sep 2026 | 30.8% 8 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – Sep 2026 | 3.06 mg/l 8 Sep 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – Sep 2026 | 15.6 °C 8 Sep 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Sep 2026 | 7.25 8 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Oct 2023 – Sep 2026 | 0.22 mg/l 8 Sep 2026 |
| Nitrate as N 0117 | River water | 28 | Oct 2023 – Sep 2026 | 0.18 mg/l 8 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 26 | Oct 2023 – Sep 2026 | 0.079 mg/l 8 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – Sep 2026 | 1055 µS/cm 8 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – Sep 2026 | 280 mg/l 8 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Oct 2023 – Sep 2026 | 0.0011 mg/l 8 Sep 2026 |
| Nitrite as N 0118 | River water | 28 | Oct 2023 – Sep 2026 | 0.12 mg/l 8 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Oct 2023 – Sep 2026 | 0.3 mg/l 8 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.