Landfill Check

Colnbrook By Pass No.2

IndustrialInert

Colnbrook By Pass No.2 is a historic (closed) landfill site recorded by the Environment Agency near Staines-upon-Thames, Surrey. It received industrial and inert waste between 1977 and 1993, covering about 3.5 hectares. Reference EAHLD10140, October 2025 data revision.

Full record

EA referenceEAHLD10140
Site nameColnbrook By Pass No.2
AddressPoyle, Colnbrook, Buckinghamshire
Site operatorNot recorded
Licence holderWilliam Boyer and Sons Limited
Licence issued20 January 1983
Licence surrendered31 March 1993
First waste input31 December 1977
Last waste input31 December 1993
Area3.5 ha
Gas controlNot recorded
Leachate containmentNot recorded
Licensed siteYes
EA areaNorth East TH
Grid reference504400, 178000

Source: Environment Agency Historic Landfill Sites dataset, October 2025 revision.

Boundary map

What these waste types mean

Industrial:
factory and process waste. Contents vary widely — some benign, some not; the site's operator and era are the clues.
Inert:
builder's rubble, subsoil, concrete, brick. Doesn't decompose or generate gas; the lowest-concern category.

Other historic landfill sites nearby

What this data does — and doesn't — cover

  • Licensed-era records only. Waste licensing began in 1974. Older tips — especially small pre-war ones — are incompletely recorded, so absence from this data does not mean no landfill ever existed here.
  • Not the contaminated-land register. Councils hold a separate register of land determined as contaminated. A historic landfill entry is not a contamination determination, and vice versa.
  • Boundaries are indicative. Digitised at 1:10,000 scale; some are buffers around a point rather than surveyed edges.
  • Not a substitute for a formal environmental search. If you're buying, your conveyancer's environmental search checks this and several other sources.

EA Historic Landfill dataset, October 2025 revision. More on the methodology page.