 In 2015 WASREB reported that 23 utilities provided good quality water (defined as more than 95% compliance with standards), 15 acceptable quality and for 53 utilities water quality was not acceptable (defined as less than 90% compliance).The two parameters measured were residual chlorine (40% weight) and compliance with bacteriological standards (60% weight).If the number of samples taken was lower than foreseen in the standard, the compliance was rated lower.