Hay Dike - tributary of River Wharfe
EA name: HAY DIKE - TRIB OF RIVER WHARFE
Environment Agency sampling point NE-SSN0101 · 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
- 13 Dec 2024, 12:1722 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
- 15 since 15 Jan 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 446524, 445861As published, to the nearest 1 m. Open in a map
- River, by its own name
- Wharfe
- River, by the map
- Hay DikeOn a small stream traced into the river its name gives, 2 m from the line.
- Next gauge downstream
- Tadcaster On the River Wharfe · 4.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (15 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
50.2%
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 50.2 | 50.2% |
| 27 Nov 2024, 12:54 | 74.6 | 74.6% |
| 11 Oct 2024, 12:20 | 60.7 | 60.7% |
| 26 Sep 2024, 10:55 | 70.6 | 70.6% |
| 6 Sep 2024, 11:49 | 72.3 | 72.3% |
| 6 Aug 2024, 12:15 | 57.4 | 57.4% |
| 3 Jul 2024, 10:36 | 70.5 | 70.5% |
| 19 Jun 2024, 12:31 | 78.4 | 78.4% |
| 21 May 2024, 11:11 | 90.6 | 90.6% |
| 27 Mar 2024, 10:33 | 70 | 70% |
| 9 Feb 2024, 13:00 | 70.6 | 70.6% |
| 15 Jan 2024, 12:09 | 73.1 | 73.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.78 mg/l
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 5.78 | 5.78 mg/l |
| 27 Nov 2024, 12:54 | 9.54 | 9.54 mg/l |
| 11 Oct 2024, 12:20 | 6.8 | 6.8 mg/l |
| 26 Sep 2024, 10:55 | 7.34 | 7.34 mg/l |
| 6 Sep 2024, 11:49 | 7.22 | 7.22 mg/l |
| 6 Aug 2024, 12:15 | 5.61 | 5.61 mg/l |
| 3 Jul 2024, 10:36 | 7.39 | 7.39 mg/l |
| 19 Jun 2024, 12:31 | 8.11 | 8.11 mg/l |
| 21 May 2024, 11:11 | 9.5 | 9.5 mg/l |
| 27 Mar 2024, 10:33 | 8.17 | 8.17 mg/l |
| 9 Feb 2024, 13:00 | 8.6 | 8.6 mg/l |
| 15 Jan 2024, 12:09 | 9.29 | 9.29 mg/l |
Water temperature
code 0076 · °C
9.1 °C
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 9.1 | 9.1 °C |
| 27 Nov 2024, 12:54 | 4.9 | 4.9 °C |
| 11 Oct 2024, 12:20 | 10.2 | 10.2 °C |
| 26 Sep 2024, 10:55 | 13.5 | 13.5 °C |
| 6 Sep 2024, 11:49 | 15.3 | 15.3 °C |
| 6 Aug 2024, 12:15 | 16.3 | 16.3 °C |
| 3 Jul 2024, 10:36 | 13.1 | 13.1 °C |
| 19 Jun 2024, 12:31 | 13.7 | 13.7 °C |
| 21 May 2024, 11:11 | 13.1 | 13.1 °C |
| 27 Mar 2024, 10:33 | 8.5 | 8.5 °C |
| 9 Feb 2024, 13:00 | 6.8 | 6.8 °C |
| 15 Jan 2024, 12:09 | 5.1 | 5.1 °C |
pH
code 0061
7.35
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 7.35 | 7.35 |
| 27 Nov 2024, 12:54 | 7.59 | 7.59 |
| 11 Oct 2024, 12:20 | 7.38 | 7.38 |
| 26 Sep 2024, 10:55 | 7.33 | 7.33 |
| 6 Sep 2024, 11:49 | 7.6 | 7.6 |
| 6 Aug 2024, 12:15 | 7.43 | 7.43 |
| 3 Jul 2024, 10:36 | 7.52 | 7.52 |
| 19 Jun 2024, 12:31 | 7.55 | 7.55 |
| 21 May 2024, 11:11 | 7.62 | 7.62 |
| 27 Mar 2024, 10:33 | 7.36 | 7.36 |
| 9 Feb 2024, 13:00 | 7.31 | 7.31 |
| 15 Jan 2024, 12:09 | 7.49 | 7.49 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.37 mg/l
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 0.37 | 0.37 mg/l |
| 27 Nov 2024, 12:54 | 0.075 | 0.075 mg/l |
| 11 Oct 2024, 12:20 | 0.034 | 0.034 mg/l |
| 26 Sep 2024, 10:55 | 0.047 | 0.047 mg/l |
| 6 Sep 2024, 11:49 | 0.019 | 0.019 mg/l |
| 6 Aug 2024, 12:15 | 0.17 | 0.17 mg/l |
| 3 Jul 2024, 10:36 | 0.1 | 0.1 mg/l |
| 19 Jun 2024, 12:31 | 0.28 | 0.28 mg/l |
| 21 May 2024, 11:11 | 0.5 | 0.5 mg/l |
| 27 Mar 2024, 10:33 | 1.2 | 1.2 mg/l |
| 9 Feb 2024, 13:00 | 0.096 | 0.096 mg/l |
| 15 Jan 2024, 12:09 | 0.26 | 0.26 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.82 mg/l
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 6.82 | 6.82 mg/l |
| 27 Nov 2024, 12:54 | 1.57 | 1.57 mg/l |
| 11 Oct 2024, 12:20 | 5.98 | 5.98 mg/l |
| 26 Sep 2024, 10:55 | 4.58 | 4.58 mg/l |
| 6 Sep 2024, 11:49 | 5.89 | 5.89 mg/l |
| 6 Aug 2024, 12:15 | 4.89 | 4.89 mg/l |
| 3 Jul 2024, 10:36 | 4.12 | 4.12 mg/l |
| 19 Jun 2024, 12:31 | 6.5 | 6.5 mg/l |
| 21 May 2024, 11:11 | 6.01 | 6.01 mg/l |
| 27 Mar 2024, 10:33 | 9.45 | 9.45 mg/l |
| 9 Feb 2024, 13:00 | 5.08 | 5.08 mg/l |
| 15 Jan 2024, 12:09 | 7.23 | 7.23 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.021 mg/l
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 0.021 | 0.021 mg/l |
| 27 Nov 2024, 12:54 | 0.056 | 0.056 mg/l |
| 11 Oct 2024, 12:20 | 0.012 | 0.012 mg/l |
| 26 Sep 2024, 10:55 | 0.028 | 0.028 mg/l |
| 6 Sep 2024, 11:49 | 0.023 | 0.023 mg/l |
| 6 Aug 2024, 12:15 | 0.012 | 0.012 mg/l |
| 3 Jul 2024, 10:36 | 0.014 | 0.014 mg/l |
| 19 Jun 2024, 12:31 | 0.017 | 0.017 mg/l |
| 21 May 2024, 11:11 | 0.0067 | 0.0067 mg/l |
| 27 Mar 2024, 10:33 | 0.0018 | 0.0018 mg/l |
| 9 Feb 2024, 13:00 | 0.018 | 0.018 mg/l |
| 15 Jan 2024, 12:09 | 0.0059 | 0.0059 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1029 µS/cm
Sampled 13 Dec 2024, 22 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Dec 2024, 12:17 | 1029 | 1029 µS/cm |
| 27 Nov 2024, 12:54 | 354 | 354 µS/cm |
| 11 Oct 2024, 12:20 | 1026 | 1026 µS/cm |
| 26 Sep 2024, 10:55 | 361 | 361 µS/cm |
| 6 Sep 2024, 11:49 | 1079 | 1079 µS/cm |
| 6 Aug 2024, 12:15 | 780 | 780 µS/cm |
| 3 Jul 2024, 10:36 | 827 | 827 µS/cm |
| 19 Jun 2024, 12:31 | 1003 | 1003 µS/cm |
| 21 May 2024, 11:11 | 815 | 815 µS/cm |
| 27 Mar 2024, 10:33 | 771 | 771 µS/cm |
| 9 Feb 2024, 13:00 | 604 | 604 µS/cm |
| 15 Jan 2024, 12:09 | 1072 | 1072 µS/cm |
Everything measured here
23 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 23 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 12 | Jan 2024 – Dec 2024 | 50.2% 13 Dec 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Jan 2024 – Dec 2024 | 5.78 mg/l 13 Dec 2024 |
| Temperature of Water 0076 | River water | 12 | Jan 2024 – Dec 2024 | 9.1 °C 13 Dec 2024 |
| pH 0061 | River water | 12 | Jan 2024 – Dec 2024 | 7.35 13 Dec 2024 |
| Ammoniacal Nitrogen as N 0111 | River water | 12 | Jan 2024 – Dec 2024 | 0.37 mg/l 13 Dec 2024 |
| Nitrate as N 0117 | River water | 12 | Jan 2024 – Dec 2024 | 6.82 mg/l 13 Dec 2024 |
| Orthophosphate, reactive as P 0180 | River water | 12 | Jan 2024 – Dec 2024 | 0.021 mg/l 13 Dec 2024 |
| Conductivity at 25 C 0077 | River water | 12 | Jan 2024 – Dec 2024 | 1029 µS/cm 13 Dec 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Jan 2024 – Dec 2024 | 300 mg/l 13 Dec 2024 |
| Ammonia un-ionised as N 0119 | River water | 12 | Jan 2024 – Dec 2024 | 0.00143 mg/l 13 Dec 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 6 | Jul 2024 – Dec 2024 | 3 mg/l 13 Dec 2024 |
| Chloride 0172 | River water | 12 | Jan 2024 – Dec 2024 | 60 mg/l 13 Dec 2024 |
| eDNA Report 3047 | River water | 3 | Jun 2024 – Oct 2024 | 1 text result 16 Oct 2024 |
| Environmental DNA Filtration 3064 | River water | 3 | Jun 2024 – Oct 2024 | DNA Analysis not required 16 Oct 2024 |
| Flow Type 2896 | River water | 11 | Jan 2024 – Dec 2024 | Moderate Flow 13 Dec 2024 |
| Mitochondrial marker : Fish 12S 2857 | River water | 3 | Jun 2024 – Oct 2024 | Present 16 Oct 2024 |
| Nitrite as N 0118 | River water | 12 | Jan 2024 – Dec 2024 | 0.077 mg/l 13 Dec 2024 |
| Nitrogen, Total as N 9686 | River water | 12 | Jan 2024 – Dec 2024 | 7.7 mg/l 13 Dec 2024 |
| Nitrogen, Total Oxidised as N 0116 | River water | 12 | Jan 2024 – Dec 2024 | 6.9 mg/l 13 Dec 2024 |
| Phosphorus, Total as P 0348 | River water | 12 | Jan 2024 – Dec 2024 | 0.033 mg/l 13 Dec 2024 |
| Preparation: DNA 5923 | River water | 3 | Jun 2024 – Oct 2024 | Done 16 Oct 2024 |
| Silica, reactive as SiO2 0182 | River water | 12 | Jan 2024 – Dec 2024 | 8.8 mg/l 13 Dec 2024 |
| Solids, Suspended at 105 C 0135 | River water | 12 | Jan 2024 – Dec 2024 | 5.8 mg/l 13 Dec 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.