Mr Lam (front row, second left); Dr Chan (front row, first left); Chairperson of the ACRQWS Working Group on Public Education, Ms Tong Po-chun (front row, first right); Chairperson of the ACRQWS Working Group on Publication of Water Quality Data, Dr Richard Cheung (second row, first right); and Chairperson of the ACRQWS Working Group on Quality of Water in Buildings, Mr Ivan Lau (second row, second right), pictured with some of the Water Conservation Ambassadors.   Close