Water Quality around Hayling Island

Bathing water, harbour health and sewage concerns

Water quality around Hayling Island is a subject of growing public concern, reflecting wider national debates about sewage discharges, bathing water standards and the health of coastal environments. The island's beaches and harbours are used for swimming, sailing and other water sports, and the quality of the water directly affects public health and the enjoyment of these activities.

Bathing water quality at Hayling Island's beaches is monitored by the Environment Agency during the bathing season, typically from May to September. Samples are taken at designated bathing water sites and tested for bacteria including E. coli and intestinal enterococci. The results are published and the beaches are classified as Excellent, Good, Sufficient or Poor. Hayling's beaches have generally achieved acceptable classifications, but there have been periods when pollution events have caused temporary declines in water quality.

Sewage discharges are a significant concern. Southern Water, the water company responsible for the area, has faced criticism for the frequency of sewage discharges into the harbours and coastal waters around Hayling Island. Combined sewer overflows, designed to release excess flow during heavy rainfall, have been shown to operate more frequently than intended, releasing untreated or partially treated sewage into Langstone Harbour and the Solent.

The harbours are particularly sensitive to sewage pollution because of their enclosed nature and their importance for wildlife. Shellfish beds in Langstone Harbour have been affected by pollution, and the ecological health of both harbours depends on maintaining water quality.

Campaign groups and local residents have pressed for greater investment in sewage infrastructure to reduce the frequency and volume of discharges. The issue has national dimensions, with water companies across England facing regulatory action and public pressure to address the problem.

For swimmers, surfers and water sports enthusiasts, the practical advice is to check the latest bathing water quality results before entering the water, to avoid swimming after heavy rainfall when overflow discharges are most likely, and to shower after sea swimming. The Surfers Against Sewage app provides real-time alerts for sewage discharge events at beaches and harbours around the coast.