More than 46,000 laboratory tests were conducted on treated and untreated wastewater during the first half of the year, according to a top official.
The tests covered wastewater received at treatment plants as well as water from commercial and industrial sources, said Works Ministry sanitary operation and maintenance directorate director Abdulnabi Al Kufi in a statement yesterday.
He added that the ministry had upgraded its laboratory environment to meet ISO standards for chemical and microbiological testing.
