Upton Country Park, in Poole Road, has issued an "important visitor notice" following concerned public reports of water discolouration within the grounds of the property. Upton Country ParkUpton Country Park confirmed this had previously been understood as a "naturally occurring incident" caused by "sugars being released from the vegetation". As a precautionary measure, Upton Country Park has asked visitors to keep children and dogs away from the water until investigations are complete and the water is running clear again. Upton Country Park, Poole Road in July 2026 (Image: Simon Gregory, Dorset Camera Club)A spokesperson for the Environment Agency said: “Officers have been to Upton County House and Park to investigate reports of pollution. "The incident was confined to an isolated section of the stream, and the country park and its facilities remain open.