Bluestone Leisure Canaston Wastewater Treatment Plant, Pembrokeshire, Wales

Bluestone Leisure Canaston is an advanced wastewater treatment plant located at the Bluestone National Park Resort in Canaston Bridge, near Robeston Wathen, Pembrokeshire, Wales. The plant serves a population equivalent of 2,096 and has a designed capacity of 2,096 cubic meters per day, with a daily discharge volume of 466.64 cubic meters. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size in sensitive areas like Pembrokeshire, advanced treatment is required to protect coastal waters. The plant's treated effluent is discharged into the local catchment, which drains into the Eastern Cleddau river and eventually into Milford Haven, a large natural harbour and designated Special Area of Conservation. The advanced treatment helps protect this ecologically sensitive estuary and its diverse marine life.

The plant discharges into the Eastern Cleddau river catchment, which flows into Milford Haven, a deep-water estuary on the Pembrokeshire coast. Milford Haven supports a rich ecosystem including seabird colonies, seals, and important fish species. The advanced treatment level ensures minimal nutrient loading, protecting the estuary from eutrophication and maintaining water quality for both wildlife and recreational use.