Calder at Woodhouse Road Bridge

Where and when

Last sampled

5 Oct 2026, 10:4222 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)

Samples banked

13 since 5 Oct 2023 Imported periods: 1 Oct 2023 – 27 Oct 2026. Samples outside them are not shown here.

Latest sample

River / running surface water Monitoring (national agency policy) · results completed 22 Oct 2026

Where

National Grid 395120, 424474As published, to the nearest 1 m. Open in a map

River, by its own name

Calder

River, by the map

River CalderPlaced on the river its name gives, 4 m from the line.

Next gauge downstream

Todmorden Callis Bridge On the River Calder · 3.0 km along the river

Nearest gauge upstream

Todmorden Millwood On the River Calder · 0.3 km along the river

Why it was sampled

Monitoring (national agency policy) (11 samples)
Environmental monitoring statutory (EU directives) (2 samples)

Results here were completed a median of 17 days after the sample was taken (9 to 17 days, 2 samples).

Main measurements, river water

Everything measured here

5 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.