Regulations, Reporting, and Public Health Compliance
Focus on the framework: the Safe Drinking Water Act, primary (health-based) vs. secondary (aesthetic) standards, MCLs, MRDLs, treatment techniques, monitoring/reporting requirements, Consumer Confidence Reports, and public notification tiers. Know maximum contaminant level vs. treatment technique (e.g., filtration/disinfection), lead and copper action levels and corrosion control, DBP rules at a high level, and operator certification responsibilities. Understand sanitary surveys, significant deficiencies, violations, and recordkeeping.
Traps: treating a secondary standard as a health violation; confusing an MCL with an action level; assuming a treatment technique has a numeric MCL; and forgetting that reporting failures are themselves violations. Also watch for questions that mix monitoring frequency with reporting deadlines.
Rule of thumb: know the difference between a limit you must not exceed and a treatment you must perform, and report on time. Worked example: a lead action level exceedance is not an MCL violation; it triggers corrosion control evaluation, public education, and monitoring-so the correct answer describes the response, not a fine for exceeding an MCL.