Mrs. Nenita Marayag, RCh is the Supervising Technical Officer of the National Reference Laboratory - East Avenue Medical Center (NRL-EAMC). She has a decade-long experience developing performance evaluation guidelines of water and drug testing kits, and has notably authored the NRL-EAMC Quality Manual. Providing technical and consultative assistance on water analysis, drug testing, and toxicology, Mrs. Marayag has also been instrumental in creating and updating the 2017 Philippine National Standards for Drinking Water (PNSDW) as a member of a technical working group. The former Board of Director of the Integrated Chemists of the Philippines (ICP) currently oversees, supervises, and directs all analytical procedures of the NRL-EAMC.

Are you informed on the updates on the Philippine National Standards for Drinking Water (PNSDW)? According to the United Nations Department of Economic and Social Affairs (UNDESA), water quality is "determined by comparing the physical and chemical characteristics of a water sample with water quality guidelines or standards." Water quality standards, such as the Philippine National Standards for Drinking Water, are formulated to protect human health by enabling the provision of water that is free from harmful contaminants and is safe for public consumption. Calling all waterworks officials, developers and operators of water supply systems, ice manufacturers, health sanitation authorities, drinking water laboratories, and establishments and institutions that supply drinking water!