ABC Wastewater Collection Class II study plan

List the major components of a gravity collection system (mains, manholes, service laterals, cleanouts) and state the function of each from memory

Describe the standard sequence of confined-space entry (permit, atmospheric testing, ventilation, attendant, retrieval) without notes

Identify the four atmospheric hazards tested before entry and state the order in which they are tested

Match each of the four hazard categories (oxygen deficiency, flammable gas, toxic gas, engulfment) to a control measure

Explain the purpose and operating principle of each lift station component: wet well, dry well, pumps, check valve, isolation valve, level controls, and odor control

Compare centrifugal, positive-displacement, and submersible pump applications in collection systems

Outline a preventive maintenance schedule for lift station pumps, valves, and controls by interval

Describe the steps to respond to a high-level alarm or pump failure at a lift station

Calculate flow velocity in a gravity sewer given slope, pipe diameter, and roughness using the Manning equation

Convert between flow rates (gpm, mgd, cfs) and compute detention time in a wet well

Explain how infiltration and inflow affect capacity and describe two methods to quantify each

Describe common gravity sewer defects (roots, grease, offset joints, sags, cracks) and the O&M response to each

Distinguish between cleaning methods (rodding, jetting, bucket machines) and state when each is appropriate

Perform and document a complete hazard assessment for a manhole entry scenario, including traffic control and lockout/tagout

Explain the role and responsibilities of the entrant, attendant, and entry supervisor

Calculate the volume of a wet well and the pump-out time at a given pumping rate

Interpret a pump curve to identify shutoff head, operating point, and runout

Describe the purpose and limitations of CCTV inspection and list the defect coding categories used in reporting

Explain smoke testing and dye testing procedures and what each is designed to detect

Compare rehabilitation methods (cured-in-place pipe, pipe bursting, slip lining, point repair) by application and limitation

Identify the main permit and reporting obligations for a collection system (discharge permits, SSO notification, bypass reporting) and the timelines involved

Describe the components of a sanitary sewer overflow response and reporting sequence

Solve unit-conversion problems involving flow, volume, concentration, and loading (lbs/day, mg/L, mgd)

Calculate grease interceptor sizing or detention time given dimensions and flow

Explain the sources of grease and odor in collection systems and describe two control strategies for each

Describe how industrial pretreatment requirements affect collection system operations and sampling

Compute population equivalent loading and average daily flow from given data

Build and interpret a simple asset register with attributes for condition, age, and criticality

Explain how work order history supports preventive versus corrective maintenance decisions

Describe the elements of a public notification and customer communication plan for a planned or emergency shutdown

Calculate a simple capacity or condition index score from given asset data

Identify the records a collection system operator must maintain and the retention considerations for each

Complete a timed 60-question practice exam spanning all nine domains and record the score by domain

Review every missed question and write the correct concept in your own words

Re-drill the two weakest domains with targeted practice problems

Recite the confined-space entry sequence and SSO reporting steps from memory without notes