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Practice identifying and investigating taste/odor events, selecting adsorption or aeration and calculating carbon feeds. Assumes basic flow and concentration units; distinguishes sensory measures from safety assessments.
Nov 3, 2026
Practice iron/manganese oxidation, catalytic filtration and sequestration decisions. Assumes basic concentration units; includes theoretical oxidant-demand calculations and diagnosis of treatment limits.
Nov 3, 2026
Practice carbonate-saturation calculations, stabilization chemistry and inhibitor monitoring. Assumes basic pH and concentration units; connects numerical indices to their operational limits and distribution-system evidence.
Nov 3, 2026
Practice interpreting corrosion mechanisms, representative tap sampling and date-specific federal lead/copper requirements. Assumes basic concentration units; emphasizes sound operator decisions rather than appearance alone. Regulatory examples distinguish the interim LCR framework from the November 1, 2027 LCRI transition.
Nov 3, 2026
Practice U.S. federal drinking-water compliance decisions: Tier 1 (24-hour), Tier 2 (30-day), Tier 3 (12-month) notice; Annual CCR requirements; Record retention timeframes. For Grades 1 and 2 operators; assumes familiarity with plant and distribution terminology. Regulatory baseline checked November 3, 2026; scenarios identify future CCR requirements explicitly. State requirements may be more stringent.
Nov 3, 2026
Practice U.S. federal drinking-water compliance decisions: Turbidity standard (<= 0.30 NTU in 95% of readings); Individual filter monitoring triggers; Multi-barrier log removal credits. For Grades 1 and 2 operators; assumes familiarity with plant and distribution terminology. Regulatory baseline checked November 3, 2026; scenarios identify future CCR requirements explicitly. State requirements may be more stringent.
Nov 3, 2026
Practice U.S. federal drinking-water compliance decisions: Routine distribution monitoring; Repeat sampling (3 samples within 24 hours); Level 1 vs Level 2 assessment triggers. For Grades 1 and 2 operators; assumes familiarity with plant and distribution terminology. Regulatory baseline checked November 3, 2026; scenarios identify future CCR requirements explicitly. State requirements may be more stringent.
Nov 3, 2026
Practice U.S. federal drinking-water compliance decisions: NPDWR vs NSDWR standards; MCL vs MCLG definitions; Treatment Technique (TT) rules. For Grades 1 and 2 operators; assumes familiarity with plant and distribution terminology. Regulatory baseline checked November 3, 2026; scenarios identify future CCR requirements explicitly. State requirements may be more stringent.
Nov 3, 2026
Practice bacteriological testing: coliform & e. coli through 15 independent operator questions. Review method selection, analytical quality control and defensible interpretation. Explanations explain the correct reasoning and common errors. Follow the applicable approved method and laboratory instructions for real samples.
Nov 3, 2026
Practice alkalinity & hardness titrations through 15 independent operator questions. Review method selection, analytical quality control and defensible interpretation. Explanations explain the correct reasoning and common errors. Follow the applicable approved method and laboratory instructions for real samples.
Nov 3, 2026
Practice turbidity, ph & chlorine residual testing through 15 independent operator questions. Review method selection, analytical quality control and defensible interpretation. Explanations explain the correct reasoning and common errors. Follow the applicable approved method and laboratory instructions for real samples.
Nov 3, 2026
Practice sampling protocols & chain of custody through 15 independent operator questions. Review method selection, analytical quality control and defensible interpretation. Explanations explain the correct reasoning and common errors. Follow the applicable approved method and laboratory instructions for real samples.
Nov 3, 2026
