Connah's Quay STW - Wastewater Treatment Plant in Shotton, Wales

Connah's Quay STW is a wastewater treatment plant located on Dock Road in Connah's Quay, Shotton, Flintshire, Wales. It serves a population of around 18,104 people, classifying it as a medium-sized agglomeration under UK wastewater regulations. The plant is situated near the Dee Estuary, a major coastal feature in the region. As a UK wastewater facility, Connah's Quay STW is subject to the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive. For a population of this scale, secondary treatment is typically required, with additional nutrient removal if discharging into sensitive areas. The plant's designed capacity is 1.00 million litres per day, indicating it is sized to handle the local flow. The treated effluent from Connah's Quay STW likely discharges into the Dee Estuary, which flows into the Irish Sea. The Dee Estuary is an ecologically important area supporting diverse birdlife and marine habitats. The plant's proximity to the coast (within 50 km) means its discharge must meet stringent standards to protect the sensitive coastal environment.

Connah's Quay STW discharges into the Dee Estuary, a major tidal inlet on the Welsh-English border that flows into the Irish Sea. The estuary supports a rich ecosystem, including migratory birds and fish species, and is part of a wider coastal environment that requires careful management of nutrient inputs and pollutants to maintain water quality.