Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
Government Performance and Results Act (GPRA)-Strategic Sub-objective For Drinking Water 2.1.1 Health-based violations include Maximum Contaminant Level (MCL), Maximum Residual Disinfectant Level (MRDL) and Treatment Technique (TT) violations.
Year-to-year performance is expected to change over time as new standards take effect.
Additional resources about the objective.
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