River Blackwater downstream of Langford water treatment works

Where and when

Last sampled

3 Jul 2026, 14:164 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)

Samples banked

12 since 2 Oct 2023 Imported periods: 1 Oct 2023 – 24 Oct 2026. Samples outside them are not shown here.

Latest sample

River / running surface water Monitoring (national agency policy) · results completed 17 Jul 2026

Where

National Grid 583609, 208828As published, to the nearest 1 m. Open in a map

River, by its own name

Blackwater

River, by the map

River BlackwaterPlaced on the river its name gives, 1 m from the line.

Next gauge downstream

None tracedIts water reaches the sea without passing a gauge.

Nearest gauge upstream

Guithavon Valley On the River Brain · 9.0 km along the riverAppleford Bridge On the River Blackwater · 10 km along the river

Why it was sampled

Monitoring (national agency policy) (10 samples)
Environmental monitoring statutory (EU directives) (2 samples)

Results here were completed a median of 14 days after the sample was taken (14 to 14 days, 1 samples).

Main measurements, river water

Everything measured here

9 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.