Wheal Jane Tailings Dam - Clemos Valley Dam
Liquid / sludge
Wheal Jane Tailings Dam - Clemos Valley Dam is a historic (closed) landfill site recorded by the Environment Agency near Penryn, Cornwall. It received liquid/sludge waste on dates not recorded, covering about 31.19 hectares. Reference EAHLD30137, October 2025 data revision.
Full record
| EA reference | EAHLD30137 |
|---|---|
| Site name | Wheal Jane Tailings Dam - Clemos Valley Dam |
| Address | Wheal Baddon, Cornwall |
| Site operator | Wheal Jane Limited |
| Licence holder | Not recorded |
| Licence issued | Not recorded |
| Licence surrendered | Not recorded |
| First waste input | Not recorded |
| Last waste input | Not recorded |
| Area | 31.19 ha |
| Gas control | Not recorded |
| Leachate containment | Not recorded |
| Licensed site | Exempt |
| EA area | Cornwall SW |
| Grid reference | 177300, 42100 |
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.
Other historic landfill sites nearby
- Adjacent Bissoe BridgeWaste types not recorded
- Carnon ValleyInert
- BissoeHouseholdCommercial
- Albany FarmInert
- KeaInert
- QuenchwellWaste types not recorded
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.