Public Health Goals (PHG) are often mistaken as law, however they are goals set by the state as to what level a contaminant no longer poses a significant health risk. They are not regulated, but are established as a recommendation by the Office of Environmental Health Hazard Assessment (OEHHA). Conversely, Maximum Contaminant Levels (MCL) are … More What are Public Health Goals? Maximum Contaminant Levels and water regulations in California