Landfill Check

Knowlehill Lane

Liquid / sludgeIndustrialHouseholdCommercialInert

Knowlehill Lane is a historic (closed) landfill site recorded by the Environment Agency near Hedge End, Hampshire. It received liquid/sludge, industrial, household, commercial and inert waste from 1966, covering about 7.16 hectares. Reference EAHLD20505, October 2025 data revision.

Full record

EA referenceEAHLD20505
Site nameKnowlehill Lane
AddressFair Oak, Hampshire
Site operatorWinchester Rural District Council
Licence holderWinchester Rural District Council
Licence issuedNot recorded
Licence surrenderedNot recorded
First waste input26 July 1966
Last waste inputNot recorded
Area7.16 ha
Gas controlNot recorded
Leachate containmentNot recorded
Licensed siteNot recorded
EA areaHampshire and Isle of Wight SO
Grid reference450300, 118400

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

Boundary map

What these waste types mean

Liquid / sludge:
liquid wastes and sludges, such as sewage sludge or industrial effluent. Can be mobile in groundwater, so worth understanding.
Industrial:
factory and process waste. Contents vary widely — some benign, some not; the site's operator and era are the clues.
Household:
everyday domestic refuse. Decomposes and can generate landfill gas for a few decades after closure.
Commercial:
waste from shops and offices — paper, packaging, food. Similar profile to household waste, usually less of it.
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.