River Derwent at Rowsley

Where and when

Last sampled

13 Aug 2026, 10:0349 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)

Samples banked

23 since 12 Oct 2023 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 425677, 365891As published, to the nearest 1 m. Open in a map

River, by its own name

Derwent

River, by the map

River DerwentPlaced on the river its name gives, 14 m from the line.

Next gauge downstream

Matlock On the River Derwent · 12 km along the river

Nearest gauge upstream

Chatsworth On the River Derwent · 3.1 km along the river

Why it was sampled

Monitoring (national agency policy) (13 samples)
Planned investigation (local monitoring) (8 samples)
Unplanned reactive monitoring (pollution incidents) (2 samples)

Main measurements, river water

Everything measured here

18 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.