Dwyros
HouseholdCommercial
Dwyros is a historic (closed) landfill site recorded by the Environment Agency. It received household and commercial waste between 1977 and 1987. Reference EAHLD14670, October 2025 data revision.
Full record
| EA reference | EAHLD14670 |
|---|---|
| Site name | Dwyros |
| Address | Aberdaron, Pwllheli, Gwynedd |
| Site operator | Not recorded |
| Licence holder | Gwilym Williams |
| Licence issued | 1 December 1982 |
| Licence surrendered | 31 July 1987 |
| First waste input | 1 June 1977 |
| Last waste input | 31 July 1987 |
| Area | Not recorded |
| Gas control | Not recorded |
| Leachate containment | Not recorded |
| Licensed site | Yes |
| EA area | Northern CY |
| Grid reference | 216700, 326500 |
Source: Environment Agency Historic Landfill Sites dataset, October 2025 revision.
Boundary map
What these waste types mean
- 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.
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.