A fish kill wiped out hundreds of fish at Furnace Brook lake in East Sussex, leading to the burial of 15 trailer loads and an investigation into farm pollution.

Hundreds of fish died overnight in Furnace Brook, East Sussex, prompting the burial of 15 trailer loads and a probe into possible farm pollution.

Lake and owners

Furnace Brook is a stream‑fed fishing lake nestled in a secluded valley of the High Weald. The lake supports carp, tench, bream, roach and trout. Alistair and Diane Gould bought the property in 2013, intending to run a public angling venue. Diane, who moved to the area from Kent in 2000, said the lake was "so beautiful" that anglers returned year after year.

Overnight die‑off

Early on the morning of the incident, anglers found large numbers of fish gasping on the shore. Witnesses reported eels climbing out of the water to die. The death toll required the burial of 15 trailer‑loads of fish on site.

Response and investigation

Local environmental officers secured the area and began sampling the water. The agency confirmed that a full investigation is under way. Preliminary findings suggest that runoff from a neighbouring farm may have introduced pollutants into the lake, but officials have not ruled out other sources.

Owner reaction

Diane Gould said the loss was "devastating for the community and for the fish we have cared for". She added that the Gould family is cooperating fully with investigators and will take any remedial steps required.

Wider context

The incident highlights concerns about agricultural runoff affecting waterways across Britain. Environmental groups have warned that nutrient‑rich waste can trigger fish kills, especially in closed or semi‑closed water bodies like Furnace Brook.

Authorities have not announced a timeline for final conclusions. The lake remains closed to the public pending further assessment.