The search at Milton landfill site near Cambridge will take up to 10 weeks as officers sift through 920 square metres of rubbish Around 8,000 tonnes of bulk material were removed and facilities have been placed at the location, meaning a full scale search was possible at the start of this week. The search will take up to 10 weeks to sift through 920 square metres of rubbish, up to a depth of 8 metres.