Cocker Chemical Co
IndustrialInert
Cocker Chemical Co is a historic (closed) landfill site recorded by the Environment Agency near Oswaldtwistle, Lancashire. It received industrial and inert waste from 1938, covering about 16.78 hectares. Reference EAHLD31949, October 2025 data revision.
Full record
| EA reference | EAHLD31949 |
|---|---|
| Site name | Cocker Chemical Co |
| Address | Brookside Lane, Oswaldtwistle, Lancashire |
| Site operator | Cocker Chemicals Company Limited |
| Licence holder | Not recorded |
| Licence issued | Not recorded |
| Licence surrendered | Not recorded |
| First waste input | 31 December 1938 |
| Last waste input | Not recorded |
| Area | 16.78 ha |
| Gas control | Not recorded |
| Leachate containment | Not recorded |
| Licensed site | Not recorded |
| EA area | Central NW |
| Grid reference | 372000, 426800 |
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
- Duckworth HallIndustrialHouseholdCommercialInert
- Cocker ChemicalsWaste types not recorded
- BTP Duckworth HallLiquid / sludgeIndustrialCommercial
- Duckworth HallIndustrialHouseholdCommercial
- Higher Duckworth Hill FarmSpecialIndustrialCommercialInert
- Stanhill TipLiquid / sludgeIndustrialCommercialInert
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.