Landfill Check

Junction 20 M25-A41 Junction 20 M25 and A41

Inert

Junction 20 M25-A41 Junction 20 M25 and A41 is a historic (closed) landfill site recorded by the Environment Agency near Hemel Hempstead, Hertfordshire. It received inert waste between 1987 and 1989, covering about 2.69 hectares. Reference EAHLD12332, October 2025 data revision.

Full record

EA referenceEAHLD12332
Site nameJunction 20 M25-A41 Junction 20 M25 and A41
AddressAbbots Langley, Hertfordshire
Site operatorNot recorded
Licence holderA F Fanning Limited
Licence issued22 May 1987
Licence surrendered18 January 1990
First waste input31 May 1987
Last waste input31 December 1989
Area2.69 ha
Gas controlNot recorded
Leachate containmentNot recorded
Licensed siteYes
EA areaNorth East TH
Grid reference507700, 201100

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

Boundary map

What these waste types mean

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.