ABC Class II Water Treatment study plan

Distinguish coagulation from flocculation by writing the purpose, key chemicals, and mixing energy for each stage

Calculate coagulant dose in mg/L and lb/day from flow, solution strength, and feed rate

Interpret a jar test series and select the optimum dose, pH, and coagulant aid for three described raw-water scenarios

Compute sedimentation basin overflow rate, detention time, and weir loading from tank dimensions and flow

Diagnose four settling failures (short-circuiting, pin floc, rising sludge, algae) and state the corrective action for each

Compare rapid gravity, dual-media, and membrane filtration by listing removal mechanism and design loading range for each

Calculate filtration rate in gpm/sq ft and unit filter run volume from flow, filter area, and run time

Sequence a complete backwash cycle and calculate backwash rate and percent media expansion

Diagnose turbidity breakthrough, air binding, mudballing, and media loss using head loss and effluent turbidity trends

List the inspection and maintenance items performed on a filter during a drain-down

Explain chlorine chemistry in water, including free versus combined chlorine, breakpoint, and the effect of pH and temperature on hypochlorous acid fraction

Calculate chlorine demand, applied dose, and residual from given test values

Calculate CT (disinfectant residual times contact time) and compare the result to a required CT value for a stated log inactivation target

Describe formation and control of disinfection byproducts, including precursor removal and alternate primary disinfectants

Outline dechlorination methods and procedures for a chlorine release or overfeed event

Convert between mg/L, ppm, percent solution, and lb/day for every feed chemical used in the plant

Calculate solution strength, dilution volumes, and feed pump stroke settings for a target dose

Interpret lab results for turbidity, pH, alkalinity, chlorine residual, and jar tests and state the resulting process adjustment

Apply proper sampling technique, chain of custody, and holding time rules for plant process samples

Describe safe storage, secondary containment, and incompatible-material separation for chlorine, alum, polymer, fluoride, and lime

Trace the flow path and function of each major pump, valve, and flow meter in a conventional surface water plant

Diagnose cavitation, air binding, and seal leakage from described noise, vibration, and pressure symptoms

Calibrate and verify a turbidimeter, pH meter, and chlorine analyzer using given reference standards

Characterize a surface water source by turbidity, alkalinity, pH, and seasonal variation and relate each to treatment adjustment

Identify watershed protection measures and source water contaminants of concern, including their regulatory drivers

Match each regulated contaminant group to its reporting frequency, monitoring requirement, and public notice trigger

Assemble the required recordkeeping entries for one operating day: flows, doses, residuals, turbidity, and backwash events

Apply the correct reporting action and timeframe for an exceedance, a monitoring violation, and a treatment technique failure

Identify confined space, chemical handling, and electrical hazards and state the required control for each

Outline the emergency response steps for a chlorine leak, a power failure, and a loss of primary disinfection

Re-solve every missed calculation from weeks 1 through 6 and record the error cause for each

Complete two 50-question mixed practice sets under timed conditions covering all nine domains

Restate the treatment-train logic that links coagulant dose to settled turbidity, filter performance, and disinfection efficiency

Build a personal formula sheet for dose, feed rate, detention time, overflow rate, filtration rate, and CT and verify each formula from memory

Complete two full-length timed practice exams and score each by domain to confirm no domain falls below 70%

Recite from memory all formulas on the personal formula sheet and all regulatory timeframes reviewed in week 6

Review the weakest three domains identified in week 7 and re-test them with 20 fresh questions each

Rehearse the emergency action quick-reference card verbally for chlorine, power, and disinfection-loss events

Finalize exam-day logistics, including reference materials allowed, calculator, and identification requirements