As you turn right walking around the lake there’s an unexpected sight, a large industrial plant, on the left. This is Bromborough Wastewater Treatment Works which replaced a previous water treatment plant in the 1970’s. When the PLUTO hill was extended for this work residents lost their view of the river. Vans and lorries access the works via the service road that runs next to the car park at the Dock Road North entrance, this is the reason why visitors need to exercise caution when crossing into the park.