In 1974 the Congress of the United States passed Public Law 93-523; the Safe Drinking Water Act (SDWA) to protect public health by regulating the nation’s drinking water supply and protecting sources of drinking water. The SDWA first went into effect on June 24, 1977 and has been amended multiple times.
The SDWA empowers the U.S. EPA to establish enforceable standards for contaminants in drinking water, along with monitoring requirements and analytical test methods. The U.S. EPA has set standards for 90 chemical, microbiological, radiological, and physical contaminants.
Total Organic Carbon (TOC) analysis measures organic contamination levels and is an important indicator of water quality throughout the drinking water treatment process.