When British Coal opened the Avenue Coking Works nearby, it used the lagoon area to treat waste liquid from the coking works. During this time, large amounts of coal tar sludge from the works settled in the lagoons. The Avenue Coking Works closed in 1993, and Derbyshire County Council took over the lagoons site later the same year.
When British Coal opened the Avenue Coking Works nearby, it used the lagoon area to treat waste liquid from the coking works. During this period, large quantities of coal tar sludge accumulated in the lagoons. The Avenue Coking Works closed in 1993, and Derbyshire County Council took over the lagoons site later that year.