Goonwinnow tributary of E Wheal Rose Stream

EA name: GOONWINNOW TRIB OF E WHEAL ROSE STREAM (also listed as “GOONWINNOW TRIB OF EAST WHEAL ROSE STREAM AT LAPPA VALLEY”)
Environment Agency sampling point SW-82410751 · 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
31 Mar 2025, 12:1018 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
3 since 20 Aug 2024 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 183856, 55725As published, to the nearest 1 m. Open in a map
River, by its own name
East Wheal Rose Stream
River, by the map
An unnamed streamPlaced by position alone (the only river line close by), 7 m from the line.
Next gauge downstream
Gwills On the River Gannel · 4.5 km along the riverGWILLS 4.5 km along the river
Why it was sampled
Planned investigation (local monitoring) (3 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

97.6%

Sampled 31 Mar 2025, 18 months ago · 2 results banked

9495969798%202420252026no sample published after Mar 202512 Feb 2025, 12:42: 94.8%31 Mar 2025, 12:10: 97.6%
Every result (2)
SampledResult as publishedReads as
31 Mar 2025, 12:1097.6 97.6%
12 Feb 2025, 12:4294.8 94.8%

Water temperature

code 0076 · °C

9.8 °C

Sampled 31 Mar 2025, 18 months ago · 3 results banked

6810121416°C202420252026no sample published after Mar 202520 Aug 2024, 11:09: 14.8 °C12 Feb 2025, 12:42: 7.8 °C31 Mar 2025, 12:10: 9.8 °C
Every result (3)
SampledResult as publishedReads as
31 Mar 2025, 12:109.8 9.8 °C
12 Feb 2025, 12:427.8 7.8 °C
20 Aug 2024, 11:0914.8 14.8 °C

pH

code 0061

7.3

Sampled 31 Mar 2025, 18 months ago · 3 results banked

7.157.27.257.3202420252026no sample published after Mar 202520 Aug 2024, 11:09: 7.2212 Feb 2025, 12:42: 7.1631 Mar 2025, 12:10: 7.3
Every result (3)
SampledResult as publishedReads as
31 Mar 2025, 12:107.3 7.3
12 Feb 2025, 12:427.16 7.16
20 Aug 2024, 11:097.22 7.22

Conductivity

at 25 °C · code 0077 · µS/cm

311 µS/cm

Sampled 31 Mar 2025, 18 months ago · 3 results banked

310315320325330µS/cm202420252026no sample published after Mar 202520 Aug 2024, 11:09: 312 µS/cm12 Feb 2025, 12:42: 326 µS/cm31 Mar 2025, 12:10: 311 µS/cm
Every result (3)
SampledResult as publishedReads as
31 Mar 2025, 12:10311 311 µS/cm
12 Feb 2025, 12:42326 326 µS/cm
20 Aug 2024, 11:09312 312 µS/cm

Everything measured here

29 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 29 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 2 Feb 2025 – Mar 2025 97.6% 31 Mar 2025
Temperature of Water 0076 River water 3 Aug 2024 – Mar 2025 9.8 °C 31 Mar 2025
pH 0061 River water 3 Aug 2024 – Mar 2025 7.3 31 Mar 2025
Conductivity at 25 C 0077 River water 3 Aug 2024 – Mar 2025 311 µS/cm 31 Mar 2025
Barium, Dissolved 9446 River water 3 Aug 2024 – Mar 2025 below 10 µg/l 31 Mar 2025
Boron, Dissolved 9447 River water 3 Aug 2024 – Mar 2025 below 100 µg/l 31 Mar 2025
Cadmium 0108 River water 3 Aug 2024 – Mar 2025 below 0.1 µg/l 31 Mar 2025
Cadmium, Dissolved 0106 River water 3 Aug 2024 – Mar 2025 below 0.1 µg/l 31 Mar 2025
Calcium, Dissolved 0239 River water 3 Aug 2024 – Mar 2025 25 mg/l 31 Mar 2025
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 3 Aug 2024 – Mar 2025 1.8 mg/l 31 Mar 2025
Copper 6452 River water 3 Aug 2024 – Mar 2025 below 1 µg/l 31 Mar 2025
Copper, Dissolved 6450 River water 3 Aug 2024 – Mar 2025 below 1 µg/l 31 Mar 2025
Hardness, Total as CaCO3 0158 River water 3 Aug 2024 – Mar 2025 96.2 mg/l 31 Mar 2025
Iron, Dissolved 6460 River water 3 Aug 2024 – Mar 2025 530 µg/l 31 Mar 2025
Lead 0050 River water 3 Aug 2024 – Mar 2025 6.5 µg/l 31 Mar 2025
Lead, Dissolved 0052 River water 3 Aug 2024 – Mar 2025 5.2 µg/l 31 Mar 2025
Lithium, Dissolved 4201 River water 3 Aug 2024 – Mar 2025 below 100 µg/l 31 Mar 2025
Magnesium, Dissolved 0235 River water 3 Aug 2024 – Mar 2025 8.2 mg/l 31 Mar 2025
Manganese, Dissolved 6458 River water 3 Aug 2024 – Mar 2025 170 µg/l 31 Mar 2025
National Grid Reference : Whole : Field report 7434 River water 1 Aug 2024 – Aug 2024 1 unitless value 20 Aug 2024
Nickel 6462 River water 3 Aug 2024 – Mar 2025 2.3 µg/l 31 Mar 2025
Nickel, Dissolved 3410 River water 3 Aug 2024 – Mar 2025 2.3 µg/l 31 Mar 2025
Potassium, Dissolved 0209 River water 3 Aug 2024 – Mar 2025 2.5 mg/l 31 Mar 2025
Sodium, Dissolved 0205 River water 3 Aug 2024 – Mar 2025 19 mg/l 31 Mar 2025
Solids, Suspended at 105 C 0135 River water 3 Aug 2024 – Mar 2025 8.4 mg/l 31 Mar 2025
Strontium, Filtered 6693 River water 3 Aug 2024 – Mar 2025 120 µg/l 31 Mar 2025
Sulphate, Dissolved as SO4 7859 River water 3 Aug 2024 – Mar 2025 21 mg/l 31 Mar 2025
Zinc 6455 River water 3 Aug 2024 – Mar 2025 28 µg/l 31 Mar 2025
Zinc, Dissolved 3408 River water 3 Aug 2024 – Mar 2025 30 µg/l 31 Mar 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.