What was the primary reason the USEPA promulgated the final Ground Water Rule in October 2006?

• A. Arsenic Contamination
• B. Fecal Contamination
• C. Radon Contamination
• D. Nitrites Contamination

Answer: (B)

The main idea is to protect drinking water from microbial contamination in groundwater sources. The Ground Water Rule issued in October 2006 was designed to reduce the risk of fecal contamination entering groundwater systems that supply public drinking water. It focuses on groundwater sources that show evidence of fecal contamination, indicated by the presence of total coliform bacteria. When such contamination is found, systems must take corrective actions like disinfecting the well, conducting sanitary surveys to identify and fix the contamination source, increasing monitoring, and implementing treatment or switching sources as needed. This emphasis on fecal contamination distinguishes it from other contaminants. Arsenic, radon, and nitrites are addressed by separate rules or programs and are not the primary focus of this groundwater rule.