Bishops Lydeard STW - Secondary Wastewater Treatment Plant in Somerset, England

Bishops Lydeard STW is a wastewater treatment plant located on Minehead Road in Bishop's Lydeard, Somerset, England. It serves a population of 2,091 people, classifying it as a small agglomeration under UK and EU regulatory frameworks. The plant provides secondary treatment, which is the standard required for inland freshwater discharge under the Urban Waste Water Treatment Directive (91/271/EEC). The plant has a designed capacity of 2,450 m³/day and currently discharges an average of 465.53 m³/day of treated effluent. As a secondary treatment facility, it employs biological processes to reduce organic matter and suspended solids. The plant operates under the UK's environmental permitting regime, which implements EU directives post-Brexit through the Environmental Permitting Regulations. The treated effluent is discharged into a local watercourse that ultimately drains into the Bristol Channel via the River Parrett or its tributaries. The Somerset Levels and Moors, a ecologically sensitive wetland area, lie downstream. The plant's discharge contributes to maintaining water quality in this important freshwater and estuarine ecosystem, which supports diverse aquatic life and migratory birds.

The plant discharges into a tributary of the River Parrett, which flows through the Somerset Levels and Moors before entering the Bristol Channel. This estuarine environment supports diverse aquatic species and is an important migratory corridor for birds. The secondary treatment ensures compliance with water quality standards to protect the downstream ecosystem.