Gururgam, Oct. 8 -- The chlorination standards at 13 Primary Health Centres (PHCs) across the district were found to be below the required limit, health department officials said on Tuesday. To measure the quality of water, 332 samples were collected, of which 228 failed the test, added officials. Dr Vikas Swamy, deputy civil surgeon said that a notice was issued to the Municipal Corporation of Gurugram responsible for water supplies in urban areas and local authorities at village-level. "We have asked the authorities concerned to ensure that the water supplied to Community Health Centers (CHCs) is within the prescribed limit," Swamy added. An official said the CHCs using borewells or other water localised sources have been instructed to replace them....