Extensive restoration measures were carried out in 1993. In 1997, ENSIS Ltd. was commissioned to continue post-restoration monitoring of six lakes; Main Lake and Ladies Pool (Battersea Park), Wildlife Lake and Three Island Pond (Wandsworth Common), Tooting Common Lake and King George's Park Lake. This project represented a continuation of the monitoring programme and, based on the results, has provided a series of management recommendations for the Borough Council.
Quarterly monitoring was undertaken at the six lakes for the following:
Water quality monitoring and biological data were reported quarterly. They indicated poor water quality, in particular high nutrient concentrations, low oxygen levels and high BOD) and high concentrations of cyanobacteria
A brief interpretation report was provided detailing specific priority areas for management, and highlighting medium and long-term actions to improve water quality and enhance the ecological function of the sites. For each site, specific recommendations were made for annual planting of aquatic and marginal vegetation and where applicable, for the manipulation of fish stocks.