The ponds in Denman Park are home to a wide variety of wildlife but have been subject
to pollution from a range of sources in recent years, and have been overcome with excessive vegetation.
A project is underway to restore and improve the quality of the ponds, increase and restore
habitat and biodiversity both in and around the ponds.

Link to leaflet to explain the work being done

Here is a case study that provides further background on the need to use a downstream defender unit in conjunction with a wetland water treatment system