Stock Ghyll upstream of Ambleside
EA name: STOCK GHYLL U/S AMBLESIDE
Environment Agency sampling point NW-88025926 · 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
- 24 Sep 2025, 12:4512 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 8 Oct 2026 and had nothing newer.
- Samples banked
- 6 since 30 Apr 2025 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 338214, 504563As published, to the nearest 1 m. Open in a map
- River, by its own name
- Stock Ghyll
- River, by the map
- Stock GhyllPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Ambleside Rydal Road On the Stock Ghyll · 0.9 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.9%
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 99.9 | 99.9% |
| 20 Aug 2025, 11:01 | 100.3 | 100.3% |
| 28 Jul 2025, 11:05 | 101.3 | 101.3% |
| 10 Jun 2025, 13:15 | 101.5 | 101.5% |
| 22 May 2025, 13:19 | 99.8 | 99.8% |
| 30 Apr 2025, 10:40 | 99.4 | 99.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11 mg/l
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 11 | 11 mg/l |
| 20 Aug 2025, 11:01 | 10.2 | 10.2 mg/l |
| 28 Jul 2025, 11:05 | 10.4 | 10.4 mg/l |
| 10 Jun 2025, 13:15 | 10.5 | 10.5 mg/l |
| 22 May 2025, 13:19 | 10.9 | 10.9 mg/l |
| 30 Apr 2025, 10:40 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
11 °C
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 11 | 11 °C |
| 20 Aug 2025, 11:01 | 14.5 | 14.5 °C |
| 28 Jul 2025, 11:05 | 14 | 14 °C |
| 10 Jun 2025, 13:15 | 13.6 | 13.6 °C |
| 22 May 2025, 13:19 | 11.5 | 11.5 °C |
| 30 Apr 2025, 10:40 | 11.7 | 11.7 °C |
pH
code 0061
7.73
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 7.73 | 7.73 |
| 20 Aug 2025, 11:01 | 7.87 | 7.87 |
| 28 Jul 2025, 11:05 | 7.88 | 7.88 |
| 10 Jun 2025, 13:15 | 7.88 | 7.88 |
| 22 May 2025, 13:19 | 7.58 | 7.58 |
| 30 Apr 2025, 10:40 | 7.86 | 7.86 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.0042 mg/l
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 0.0042 | 0.0042 mg/l |
| 20 Aug 2025, 11:01 | 0.0061 | 0.0061 mg/l |
| 28 Jul 2025, 11:05 | <0.002 | below 0.002 mg/l (not detected above this) |
| 10 Jun 2025, 13:15 | <0.002 | below 0.002 mg/l (not detected above this) |
| 22 May 2025, 13:19 | 0.013 | 0.013 mg/l |
| 30 Apr 2025, 10:40 | 0.0025 | 0.0025 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.189 mg/l
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 0.189 | 0.189 mg/l |
| 20 Aug 2025, 11:01 | 0.269 | 0.269 mg/l |
| 28 Jul 2025, 11:05 | 0.189 | 0.189 mg/l |
| 10 Jun 2025, 13:15 | 0.094 | 0.094 mg/l |
| 22 May 2025, 13:19 | 0.437 | 0.437 mg/l |
| 30 Apr 2025, 10:40 | 0.209 | 0.209 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0031 mg/l
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 0.0031 | 0.0031 mg/l |
| 20 Aug 2025, 11:01 | 0.013 | 0.013 mg/l |
| 28 Jul 2025, 11:05 | 0.0028 | 0.0028 mg/l |
| 10 Jun 2025, 13:15 | 0.0026 | 0.0026 mg/l |
| 22 May 2025, 13:19 | 0.0034 | 0.0034 mg/l |
| 30 Apr 2025, 10:40 | 0.0017 | 0.0017 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
67 µS/cm
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 67 | 67 µS/cm |
| 20 Aug 2025, 11:01 | 89 | 89 µS/cm |
| 28 Jul 2025, 11:05 | 80 | 80 µS/cm |
| 10 Jun 2025, 13:15 | 211 | 211 µS/cm |
| 22 May 2025, 13:19 | 105 | 105 µS/cm |
| 30 Apr 2025, 10:40 | 104 | 104 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
45 per 100 ml
Sampled 24 Sep 2025, 12 months ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Sep 2025, 12:45 | 45 | 45 per 100 ml |
| 20 Aug 2025, 11:01 | 310 | 310 per 100 ml |
| 28 Jul 2025, 11:05 | 90 | 90 per 100 ml |
| 10 Jun 2025, 13:15 | 330 | 330 per 100 ml |
| 22 May 2025, 13:19 | 54 | 54 per 100 ml |
| 30 Apr 2025, 10:40 | 54 | 54 per 100 ml |
Everything measured here
19 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 19 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | Apr 2025 – Sep 2025 | 99.9% 24 Sep 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 6 | Apr 2025 – Sep 2025 | 11 mg/l 24 Sep 2025 |
| Temperature of Water 0076 | River water | 6 | Apr 2025 – Sep 2025 | 11 °C 24 Sep 2025 |
| pH 0061 | River water | 6 | Apr 2025 – Sep 2025 | 7.73 24 Sep 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | Apr 2025 – Sep 2025 | 0.0042 mg/l 24 Sep 2025 |
| Nitrate as N 0117 | River water | 6 | Apr 2025 – Sep 2025 | 0.189 mg/l 24 Sep 2025 |
| Orthophosphate, reactive as P 0180 | River water | 6 | Apr 2025 – Sep 2025 | 0.0031 mg/l 24 Sep 2025 |
| Conductivity at 25 C 0077 | River water | 6 | Apr 2025 – Sep 2025 | 67 µS/cm 24 Sep 2025 |
| Escherichia coli : Confirmed : MF 2348 | River water | 6 | Apr 2025 – Sep 2025 | 45 per 100 ml 24 Sep 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Apr 2025 – Sep 2025 | 20 mg/l 24 Sep 2025 |
| Ammonia un-ionised as N 0119 | River water | 6 | Apr 2025 – Sep 2025 | 0.00004 mg/l 24 Sep 2025 |
| BOD : 5 Day ATU 0085 | River water | 6 | Apr 2025 – Sep 2025 | 1.1 mg/l 24 Sep 2025 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 6 | Apr 2025 – Sep 2025 | 27 colony forming units / 100ml 24 Sep 2025 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 6 | Apr 2025 – Sep 2025 | 45 colony forming units / 100ml 24 Sep 2025 |
| MST Filtration 4926 | River water | 6 | Apr 2025 – Sep 2025 | DNA Stored 24 Sep 2025 |
| Nitrite as N 0118 | River water | 6 | Apr 2025 – Sep 2025 | below 0.001 mg/l 24 Sep 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | Apr 2025 – Sep 2025 | 0.19 mg/l 24 Sep 2025 |
| Phosphorus, Total as P 0348 | River water | 6 | Apr 2025 – Sep 2025 | 0.0053 mg/l 24 Sep 2025 |
| Volume of Sample Filtered 4865 | River water | 6 | Apr 2025 – Sep 2025 | 780 millilitre 24 Sep 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.