Milford Haven STW Wastewater Treatment Plant, Pembrokeshire, Wales

Milford Haven STW is a municipal wastewater treatment plant located in Hakin, Milford Haven, Pembrokeshire, Wales. It serves a population of around 14,300 residents in this coastal town, which is part of the Pembrokeshire Coast National Park area. The plant is situated near the Milford Haven Waterway, a deep-water ria that supports a major port and oil and gas industry. As a plant in the United Kingdom, Milford Haven STW operates under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For a population of approximately 14,300, the regulations require secondary treatment as a minimum, with more stringent treatment if the discharge is into a sensitive area. The treated effluent from Milford Haven STW is discharged into the Milford Haven Waterway, a tidal ria that eventually flows into the Celtic Sea. This waterway is an ecologically important habitat, supporting diverse marine life, including fish, birds, and seals. The area is also a key site for migratory birds and is part of the Pembrokeshire Marine Special Area of Conservation, which protects its rich biodiversity.

Milford Haven STW discharges into the Milford Haven Waterway, a ria that flows into the Celtic Sea. This waterway is a vital habitat for marine species, including Atlantic salmon, sea trout, and various bird species. The area is ecologically sensitive due to its role as a nursery ground for fish and a feeding ground for migratory birds. The plant's discharge must meet strict standards to protect this important coastal ecosystem.