The bathing water quality is influenced by the Chy-an-dour stream and the Ponsandane Brook, and may reduce during or after periods of heavy rainfall due to run off from the surrounding urban area, and occasional discharges from a storm overflow.
This bathing water is subject to short term pollution. The Environment Agency makes daily pollution risk forecasts based on rainfall and tidal patterns. A pollution risk warning is issued if heavy rainfall occurs to enable bathers to avoid periods when bathing water quality may be reduced. This may last between 1-3 days. In 2018 warnings were issued on 3 days.