This concept was defined by two programmes: the Blue Drop Certification Programme for Drinking Water Quality Management Regulation; and the Green Drop Certification Programme for Wastewater Quality Management Regulation.
Blue Drop System was originally designed with five (5) Key Performance Areas, which changed over time. For any WSA to achieve a blue drop needed to obtain overall score of ≥ 95% with the Water Quality compliance as per SANS 241, within the total water services value chain.
The process followed some virtual assessments being done, where municipalities had to upload their Portfolio of Evidence onto the Blue Drop System. It is worth mentioning that this requires a joint effort between the operators of the total services infrastructure, from treatment to consumption. AW’s responsibility is mainly on the treatment and distribution of bulk water, from the source, up to the distribution reservoirs, then the WSA is responsible to distribute further, whilst ensuring compliance.