River Lew at Combebow Bridge
EA name: RIVER LEW AT COMBEBOW BRIDGE (also listed as “RIVER LEW (TAMAR) AT COMBEBOW BRIDGE”)
Environment Agency sampling point SW-81261439 · 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 Mar 2026, 14:306 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
- 1 since 24 Mar 2026 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 248548, 87942As published, to the nearest 1 m. Open in a map
- River, by its own name
- Lew
- River, by the map
- River LewPlaced on the river its name gives, 19 m from the line.
- Next gauge downstream
- Lifton Park On the River Lyd · 15 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.7%
Sampled 24 Mar 2026, 6 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Mar 2026, 14:30 | 96.7 | 96.7% |
Water temperature
code 0076 · °C
10 °C
Sampled 24 Mar 2026, 6 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Mar 2026, 14:30 | 10 | 10 °C |
Conductivity
at 25 °C · code 0077 · µS/cm
148 µS/cm
Sampled 24 Mar 2026, 6 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Mar 2026, 14:30 | 148 | 148 µS/cm |
Everything measured here
38 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 38 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 1 | Mar 2026 – Mar 2026 | 96.7% 24 Mar 2026 |
| Temperature of Water 0076 | River water | 1 | Mar 2026 – Mar 2026 | 10 °C 24 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 1 | Mar 2026 – Mar 2026 | 148 µS/cm 24 Mar 2026 |
| Barium 6062 | River water | 1 | Mar 2026 – Mar 2026 | below 10 µg/l 24 Mar 2026 |
| Barium, Dissolved 9446 | River water | 1 | Mar 2026 – Mar 2026 | below 10 µg/l 24 Mar 2026 |
| Boron 6059 | River water | 1 | Mar 2026 – Mar 2026 | below 100 µg/l 24 Mar 2026 |
| Boron, Dissolved 9447 | River water | 1 | Mar 2026 – Mar 2026 | below 100 µg/l 24 Mar 2026 |
| Cadmium 0108 | River water | 1 | Mar 2026 – Mar 2026 | 0.021 µg/l 24 Mar 2026 |
| Cadmium, Dissolved 0106 | River water | 1 | Mar 2026 – Mar 2026 | 0.014 µg/l 24 Mar 2026 |
| Calcium 0241 | River water | 1 | Mar 2026 – Mar 2026 | 14 mg/l 24 Mar 2026 |
| Calcium, Dissolved 0239 | River water | 1 | Mar 2026 – Mar 2026 | 14 mg/l 24 Mar 2026 |
| Chromium 3164 | River water | 1 | Mar 2026 – Mar 2026 | below 0.5 µg/l 24 Mar 2026 |
| Chromium, Dissolved 3409 | River water | 1 | Mar 2026 – Mar 2026 | below 0.5 µg/l 24 Mar 2026 |
| Copper 6452 | River water | 1 | Mar 2026 – Mar 2026 | 1.1 µg/l 24 Mar 2026 |
| Copper, Dissolved 6450 | River water | 1 | Mar 2026 – Mar 2026 | 0.74 µg/l 24 Mar 2026 |
| Hardness, Total as CaCO3 0158 | River water | 1 | Mar 2026 – Mar 2026 | 47.3 mg/l 24 Mar 2026 |
| Iron 6051 | River water | 1 | Mar 2026 – Mar 2026 | 180 µg/l 24 Mar 2026 |
| Iron, Dissolved 6460 | River water | 1 | Mar 2026 – Mar 2026 | 100 µg/l 24 Mar 2026 |
| Lead 0050 | River water | 1 | Mar 2026 – Mar 2026 | 0.15 µg/l 24 Mar 2026 |
| Lead, Dissolved 0052 | River water | 1 | Mar 2026 – Mar 2026 | below 0.1 µg/l 24 Mar 2026 |
| Lithium 6064 | River water | 1 | Mar 2026 – Mar 2026 | below 100 µg/l 24 Mar 2026 |
| Lithium, Dissolved 4201 | River water | 1 | Mar 2026 – Mar 2026 | below 100 µg/l 24 Mar 2026 |
| Magnesium 0237 | River water | 1 | Mar 2026 – Mar 2026 | 3 mg/l 24 Mar 2026 |
| Magnesium, Dissolved 0235 | River water | 1 | Mar 2026 – Mar 2026 | 3 mg/l 24 Mar 2026 |
| Manganese 6050 | River water | 1 | Mar 2026 – Mar 2026 | 19 µg/l 24 Mar 2026 |
| Manganese, Dissolved 6458 | River water | 1 | Mar 2026 – Mar 2026 | 17 µg/l 24 Mar 2026 |
| Nickel 6462 | River water | 1 | Mar 2026 – Mar 2026 | 1.6 µg/l 24 Mar 2026 |
| Nickel, Dissolved 3410 | River water | 1 | Mar 2026 – Mar 2026 | 1.5 µg/l 24 Mar 2026 |
| Potassium 0211 | River water | 1 | Mar 2026 – Mar 2026 | 1.3 mg/l 24 Mar 2026 |
| Potassium, Dissolved 0209 | River water | 1 | Mar 2026 – Mar 2026 | 1.3 mg/l 24 Mar 2026 |
| Sodium 0207 | River water | 1 | Mar 2026 – Mar 2026 | 8.7 mg/l 24 Mar 2026 |
| Sodium, Dissolved 0205 | River water | 1 | Mar 2026 – Mar 2026 | 8.7 mg/l 24 Mar 2026 |
| Strontium 6063 | River water | 1 | Mar 2026 – Mar 2026 | 63 µg/l 24 Mar 2026 |
| Strontium, Filtered 6693 | River water | 1 | Mar 2026 – Mar 2026 | 63 µg/l 24 Mar 2026 |
| Sulphate as SO4 0183 | River water | 1 | Mar 2026 – Mar 2026 | 14 mg/l 24 Mar 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 1 | Mar 2026 – Mar 2026 | 15 mg/l 24 Mar 2026 |
| Zinc 6455 | River water | 1 | Mar 2026 – Mar 2026 | 2.9 µg/l 24 Mar 2026 |
| Zinc, Dissolved 3408 | River water | 1 | Mar 2026 – Mar 2026 | 2.2 µg/l 24 Mar 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.