UCMR4, Microcystins Analysis, and High-Resolution Mass Spectrometry for Confidence in Identity Confirmation

The Safe Drinking Water Act (SDWA) is one of multiple environmental and public health and safety-driven pieces of US legislature to come out of the environmentalism of the 1970s. Prior to the SDWA, few regulations existed to define, measure, or limit potentially hazardous contamination in drinking water, and of these many were defined under state or local control. The SDWA passed in 1974, securing the US Environmental Protection Agency as the key responsible agency for monitoring and enforcing the public's drinking water safety from contamination. Here, Hyland et al discuss the Unregulated Contaminant Monitoring Rules.