Colthrop Mills
Industrial
Colthrop Mills is a historic (closed) landfill site recorded by the Environment Agency near Thatcham, West Berkshire. It received industrial waste between 1982 and 1986, covering about 0.2 hectares. Reference EAHLD34186, October 2025 data revision.
Note: this site's boundary was derived by buffering a point location, not from a surveyed edge — treat the shape as approximate.
Full record
| EA reference | EAHLD34186 |
|---|---|
| Site name | Colthrop Mills |
| Address | Thatcham |
| Site operator | Not recorded |
| Licence holder | Reed Paper and Board (uk) Limited |
| Licence issued | 17 December 1976 |
| Licence surrendered | 1 January 1987 |
| First waste input | 1 March 1982 |
| Last waste input | 30 June 1986 |
| Area | 0.2 ha |
| Gas control | Not recorded |
| Leachate containment | Not recorded |
| Licensed site | Yes |
| EA area | West TH |
| Grid reference | 453700, 166500 |
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.
Other historic landfill sites nearby
- Bonds GullyWaste types not recorded
- Dunstan GreenIndustrialInert
- Limbercast FarmWaste types not recorded
- Limberlost FarmLiquid / sludgeIndustrialHouseholdCommercialInert
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.