Research Methodology - This survey study aims to monitor household drinking water quality of urban and rural areas in Regional Health Promotion Center 1. The method was conducted by sampling from main sources of household drinking water in Nonthaburi Province, Pathum Thani Province, Ayutthaya Province, and Ang Thong Province. The samples include rain water, bottled water, and water from vending machine totally 119 samples. The sampling was conducted during March 2012 – June 2013. In addition, the researcher had surveyed information about drinking water quality by using household drinking water quality surveillance survey questionnaires from Bureau of Food and Water Sanitation, Department of Health. The researcher used descriptive statistics, namely, Frequency and Percentage.