Kelwell Drain downstream of Old Ellerby sewage treatment works
EA name: KELWELL DRAIN D/S OLD ELLERBY STW (also listed as “KELWELL DRAIN AT CRAB TREE LANE D/S OLD ELLERBY STW”)
Environment Agency sampling point NE-49105248 · 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
- 11 Feb 2025, 09:5820 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
- 11 since 10 Apr 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 515509, 436822As published, to the nearest 1 m. Open in a map
- River, by its own name
- Kelwell Drain
- River, by the map
- Kelwell DrainPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- Bransholme Great Culvert Pumping Station On the Holderness Drain · 6.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (11 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
94%
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 94 | 94% |
| 15 Jan 2025, 09:31 | 94.2 | 94.2% |
| 16 Dec 2024, 14:56 | 92.2 | 92.2% |
| 29 Nov 2024, 12:45 | 98.8 | 98.8% |
| 9 Oct 2024, 09:59 | 13 | 13% |
| 2 Oct 2024, 14:34 | 83.5 | 83.5% |
| 2 Jul 2024, 11:57 | 90.1 | 90.1% |
| 10 Jun 2024, 13:37 | 92.7 | 92.7% |
| 15 May 2024, 13:13 | 96.8 | 96.8% |
| 10 Apr 2024, 11:38 | 108.2 | 108.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.1 mg/l
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 12.1 | 12.1 mg/l |
| 15 Jan 2025, 09:31 | 12 | 12 mg/l |
| 16 Dec 2024, 14:56 | 10.7 | 10.7 mg/l |
| 29 Nov 2024, 12:45 | 12 | 12 mg/l |
| 9 Oct 2024, 09:59 | 1.37 | 1.37 mg/l |
| 2 Oct 2024, 14:34 | 8.76 | 8.76 mg/l |
| 2 Jul 2024, 11:57 | 9.32 | 9.32 mg/l |
| 10 Jun 2024, 13:37 | 9.9 | 9.9 mg/l |
| 15 May 2024, 13:13 | 10 | 10 mg/l |
| 10 Apr 2024, 11:38 | 12.2 | 12.2 mg/l |
Water temperature
code 0076 · °C
4.7 °C
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 4.7 | 4.7 °C |
| 15 Jan 2025, 09:31 | 4.9 | 4.9 °C |
| 16 Dec 2024, 14:56 | 8.7 | 8.7 °C |
| 29 Nov 2024, 12:45 | 6.8 | 6.8 °C |
| 9 Oct 2024, 09:59 | 12.9 | 12.9 °C |
| 2 Oct 2024, 14:34 | 13.1 | 13.1 °C |
| 2 Jul 2024, 11:57 | 13.7 | 13.7 °C |
| 10 Jun 2024, 13:37 | 12.3 | 12.3 °C |
| 15 May 2024, 13:13 | 13.7 | 13.7 °C |
| 10 Apr 2024, 11:38 | 10.1 | 10.1 °C |
pH
code 0061
8.03
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 8.03 | 8.03 |
| 15 Jan 2025, 09:31 | 7.93 | 7.93 |
| 16 Dec 2024, 14:56 | 8.02 | 8.02 |
| 29 Nov 2024, 12:45 | 8 | 8 |
| 9 Oct 2024, 09:59 | 7.74 | 7.74 |
| 2 Oct 2024, 14:34 | 7.63 | 7.63 |
| 2 Jul 2024, 11:57 | 8.04 | 8.04 |
| 10 Jun 2024, 13:37 | 7.95 | 7.95 |
| 15 May 2024, 13:13 | 8.17 | 8.17 |
| 10 Apr 2024, 11:38 | 8.02 | 8.02 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.91 mg/l
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 0.91 | 0.91 mg/l |
| 15 Jan 2025, 09:31 | 0.22 | 0.22 mg/l |
| 16 Dec 2024, 14:56 | 0.68 | 0.68 mg/l |
| 29 Nov 2024, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Oct 2024, 09:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Oct 2024, 14:34 | 0.048 | 0.048 mg/l |
| 2 Jul 2024, 11:57 | 0.18 | 0.18 mg/l |
| 10 Jun 2024, 13:37 | 0.051 | 0.051 mg/l |
| 15 May 2024, 13:13 | 0.031 | 0.031 mg/l |
| 10 Apr 2024, 11:38 | 0.11 | 0.11 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
8.69 mg/l
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 8.69 | 8.69 mg/l |
| 15 Jan 2025, 09:31 | 9.91 | 9.91 mg/l |
| 16 Dec 2024, 14:56 | 10.8 | 10.8 mg/l |
| 29 Nov 2024, 12:45 | 16 | 16 mg/l |
| 9 Oct 2024, 09:59 | 8.78 | 8.78 mg/l |
| 2 Oct 2024, 14:34 | 26.9 | 26.9 mg/l |
| 2 Jul 2024, 11:57 | 2.26 | 2.26 mg/l |
| 10 Jun 2024, 13:37 | 4.35 | 4.35 mg/l |
| 15 May 2024, 13:13 | 5.35 | 5.35 mg/l |
| 10 Apr 2024, 11:38 | 10.9 | 10.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.042 mg/l
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 0.042 | 0.042 mg/l |
| 15 Jan 2025, 09:31 | 0.047 | 0.047 mg/l |
| 16 Dec 2024, 14:56 | 0.046 | 0.046 mg/l |
| 29 Nov 2024, 12:45 | 0.04 | 0.04 mg/l |
| 9 Oct 2024, 09:59 | 0.12 | 0.12 mg/l |
| 2 Oct 2024, 14:34 | 0.09 | 0.09 mg/l |
| 2 Jul 2024, 11:57 | 0.12 | 0.12 mg/l |
| 10 Jun 2024, 13:37 | 0.075 | 0.075 mg/l |
| 15 May 2024, 13:13 | 0.036 | 0.036 mg/l |
| 10 Apr 2024, 11:38 | 0.027 | 0.027 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1016 µS/cm
Sampled 11 Feb 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Feb 2025, 09:58 | 1016 | 1016 µS/cm |
| 15 Jan 2025, 09:31 | 876 | 876 µS/cm |
| 16 Dec 2024, 14:56 | 971 | 971 µS/cm |
| 29 Nov 2024, 12:45 | 936 | 936 µS/cm |
| 9 Oct 2024, 09:59 | 780 | 780 µS/cm |
| 2 Oct 2024, 14:34 | 784 | 784 µS/cm |
| 2 Jul 2024, 11:57 | 1196 | 1196 µS/cm |
| 10 Jun 2024, 13:37 | 938 | 938 µS/cm |
| 15 May 2024, 13:13 | 1133 | 1133 µS/cm |
| 10 Apr 2024, 11:38 | 833 | 833 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 | 10 | Apr 2024 – Feb 2025 | 94% 11 Feb 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 10 | Apr 2024 – Feb 2025 | 12.1 mg/l 11 Feb 2025 |
| Temperature of Water 0076 | River water | 10 | Apr 2024 – Feb 2025 | 4.7 °C 11 Feb 2025 |
| pH 0061 | River water | 10 | Apr 2024 – Feb 2025 | 8.03 11 Feb 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 10 | Apr 2024 – Feb 2025 | 0.91 mg/l 11 Feb 2025 |
| Nitrate as N 0117 | River water | 10 | Apr 2024 – Feb 2025 | 8.69 mg/l 11 Feb 2025 |
| Orthophosphate, reactive as P 0180 | River water | 10 | Apr 2024 – Feb 2025 | 0.042 mg/l 11 Feb 2025 |
| Conductivity at 25 C 0077 | River water | 10 | Apr 2024 – Feb 2025 | 1016 µS/cm 11 Feb 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 10 | Apr 2024 – Feb 2025 | 290 mg/l 11 Feb 2025 |
| Ammonia un-ionised as N 0119 | River water | 10 | Apr 2024 – Feb 2025 | 0.0112 mg/l 11 Feb 2025 |
| Nitrite as N 0118 | River water | 10 | Apr 2024 – Feb 2025 | 0.11 mg/l 11 Feb 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 10 | Apr 2024 – Feb 2025 | 8.8 mg/l 11 Feb 2025 |
| No flow /No sample 7668 | River water | 1 | Aug 2024 – Aug 2024 | No flow/discharge at sampling point 6 Aug 2024 |
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.