The Trafford Ecology Park is what remains of Trafford Park's ornamental boating lake. Boating continued on the lake until the 1930s, but by then its water had become polluted by asbestos and oil seepage from the neighbouring Anglo American Oil depot. During the Second World War the site was used as a tip for foundry waste. Esso bought the land in 1974, and levelled and partly seeded it, to improve the frontage to its own site. Trafford council bought the land from Esso in 1983, for £50,000 (£ as of ). Government spending restrictions delayed the park's restoration and conversion, and it was not fully opened to the public until 1990.