Certified Water/Wastewater Maintenance Technician I (CWWMT-I)

Test Content & Lesson Curriculum

Unit 112 Reading Blue Prints – Covers all types of blue prints used in plants. Discusses machine parts and machine drawings. Examines hydraulic, pneumatic, piping, plumbing, electrical drawings. Introduces sketching used in plants
Lesson 1: Introduction to Blue Prints
Lesson 2: Machine Parts
Lesson 3: Machine Drawings
Lesson 6: Hydraulic and Pneumatic Drawings
Lesson 7: Piping and Plumbing Drawings
Lesson 8: Electrical Drawings
Lesson 10: Sketching
Unit 102 Schematic and Symbols – Covers all types of schematics and symbols used in commercial and industrial settings. Examines symbols on schematics, electrical symbols, and diagrams, piping symbols and diagrams, hydraulic and pneumatic diagrams and symbols. Covers welding and joining symbols
Lesson 1: Introduction to Schematics and Symbols
Lesson 3: Electrical Symbols
Lesson 4: Electrical Diagrams
Lesson 5: Piping Symbols
Lesson 6: Piping Diagrams
Lesson 7: Hydraulic and Pneumatic Symbols
Lesson 8: Hydraulic and Pneumatic Diagrams
Lesson 10: Welding and Joining Symbols
Unit 103 Mathematics in the Plant – Begins by introducing mathematics basics – numbers and numerals, subtraction, addition multiplication, and division. Examines common fractions and decimal fractions, ratios and proportions, powers and roots. Discusses the calculator: use, basic and special functions, internal logic, and special purpose calculators. Moves on to cover geometry, algebra, and formulas for problem solving. Concludes by explaining properties of triangles and trig and inverse trig functions.
Lesson 1: Whole Numbers
Lesson 2: Common Fractions
Lesson 3: Decimal Fractions
Lesson 4: Ratios and Proportions
Lesson 5: Powers and Roots
Lesson 7: Geometry
Lesson 8: Algebra
Lesson 9: Using Formulas
Lesson 10: Trigonometry
Unit 104 Making Measurements – Covers units of measurement used in commercial and industrial applications. Examines all aspects of basic measurement concepts and procedures, including accuracy and tolerance. Discusses techniques and services for comparison measurements. Shows common methods for measuring volume, motion, force, temperature, fluid flow, and electricity. Explains how to use scales and rules, combination calipers, and micrometers.
Lesson 1: Units of Measurements
Lesson 3: Linear Measurement
Lesson 4: Comparison and Surface Measurement
Lesson 5: Measuring Bulk Material
Lesson 6: Measuring Motion
Lesson 7: Measuring Forces
Lesson 8: Measuring Temperature
Lesson 9: Measuring Fluids
Lesson 10: Measuring Electricity
Unit 105 Metals in the Plant – Introduces metals, metallurgy, and metalworking. Discusses the properties of metal including its mechanical properties. Covers iron and standard steels. Explains the different kinds of heat treatment and their usage. Discusses some techniques of working with copper, lead, nickel, tin, and zinc.
Lesson 1: Introduction to Metals
Lesson 2: Properties of Metals
Lesson 4: Iron and Steel
Lesson 5: Standards Steels
Lesson 6: Heat Treatment
Lesson 7: Copper
Lesson 10: Lead, Nickel, Tin and Zinc
Unit 106 Nonmetals in the Plant – Introduces major nonmetal materials and how they are most frequently used. Describes properties, characteristics, and classifications of each material. Covers synthetic and natural materials. Surveys industrial chemicals. Chemical safety precautions are covered, along with the proper use of protective equipment.
Lesson 1: Introduction to Nonmetals
Lesson 2: Plastics
Lesson 3: Rubber
Lesson 8: Industrial Chemicals
Lesson 10: Carbon
Unit 107 Hand Tools – Covers the most important hand tools used on the job. Begins with measuring tools, including a discussion of units of measurement. Examines the various kinds of wrenches and screwdrivers, their uses and handling techniques. Explains other hand tools by specialty: pipefitting tools, plumbing tools, electrician’s tools, and metalworking tools. Ends with hoisting and pulling tools.
Lesson 1: Measuring Tools
Lesson 2: Wrenches and Screwdrivers
Lesson 3: Pipefitting Tools
Lesson 4: Plumbing Tools
Lesson 5: Electrician’s Tools
Lesson 9: Metalworking Tools
Lesson 10: Hoisting and Pulling Tools
Unit 108 Portable Power Tools – Explains the uses, selection, safety, and care of industrial power tools: electric drills, electric hammers, pneumatic drills and hammers, screwdrivers, nut runners, wrenches, linear-motion saws, electric sanders, grinders, and shears. Covers tool sharpening techniques for selected tools.
Lesson 1: Electric Drills
Lesson 2: Electric Hammers
Lesson 3: Pneumatic Drills and Hammers
Lesson 4: Screwdrivers, Nutrunners, and Wrenches
Lesson 5: Linear Motion Saws
Lesson 8: Electric Sanders
Lesson 9: Grinders and Shears
Lesson 10: Tool Sharpening
Unit 109.1 Industrial Safety and Health – Explains government involvement in ensuring a safe workplace. Discusses safety in various situations. Discusses personal protective equipment and fire safety. Includes expanded coverage of many health hazards. Covers ergonomics, environmental responsibility and importance of maintaining a safe work environment.
Lesson 1: Introduction to Safety and Health
Lesson 2: Government Safety and Health Regulations
Lesson 3: Personal Protective Equipment
Lesson 4: Chemical Safety
Lesson 5: Tool Safety
Lesson 6: Material Handling
Lesson 7: Working Safely with Machinery
Lesson 8: Working Safely with Electricity
Lesson 9: Electrical Equipment Safety
Lesson 10: Fire Safety
Lesson 11: Protecting Your Health
Lesson 12: A Safe Work Environment
Unit 110 Troubleshooting Skills – Explores the subject of troubleshooting and the importance of proper maintenance procedures. Covers working with others, aids in communication, and trade responsibilities. Outlines troubleshooting techniques and aids, using schematics and symbols. Focuses on specific maintenance tasks, breakdown maintenance, and planned maintenance.
Lesson 1: Introduction to Troubleshooting
Lesson 2: Working with other People
Lesson 3: Troubleshooting Techniques
Lesson 4: Aids to Troubleshooting
Lesson 5: Preparing for Troubleshooting
Lesson 6: Using Schematics and Diagrams
Lesson 7: Solving Mechanical Problems
Lesson 8: Solving Electrical Problems
Lesson 9: Breakdown Maintenance
Lesson 10: Planned Maintenance
Unit 391 Force and Motion – Covers fundamentals of force and motion, showing how an engineer thinks about these concepts. Demonstrates how mathematical and graphical representations can help clarify thinking about mechanical force and motion.
Lesson 1: Scalars and Vectors
Lesson 2: Motion Along a Straight Line
Lesson 3: Acceleration
Lesson 4: How to Describe Force
Lesson 5: Force and Acceleration
Lesson 6: Equilibrium
Lesson 7: Rotational and Circular Motion
Lesson 8: Simple Harmonic Motion
Sacramento Manual – Wastewater Treatment Vol. I & II Wastewater Treatment Plant Operation – Serves as an overview of wastewater treatment for maintenance personnel. Explains various treatment processes, components and microbiology. Defines the basic modes of operation and their advantages and disadvantages. Explains the processes that make up solids handling and sludge removal and dewatering. Describes methods of disinfection.
Lesson 1: Preliminary Treatment, Chapter 4
Lesson 2: Sedimentation & Floatation, Chapter 5
Lesson 3: Biological Filtration, Chapter 6
Lesson 4: Rotating Biological Contactors, Chapter 7
Lesson 5: Activated Sludge, Chapter 8
Lesson 6: Activated Sludge,Chapter 11
Lesson 7: Stabilization Ponds,Chapter 9
Lesson 8: Effluent Disinfection, Chapter 10
Lesson 9: Sludge Digestion and Solids Handling, Chapter 12
Lesson 10: Plant Safety, Chapter 14
Lesson 11: Maintenance, Chapter 15
WEF Basic Maintenance of Diffused Aeration Systems – Assists the student in understanding and being able to identify the major components of lobe and centrifugal blowers, and the diffused aeration system. Provides instruction on the purpose, operation and maintenance requirements of filters, regulating/shut off valves, pressure relief valves and diffusers.
Lesson 1: Blowers
Lesson 2: Filters
Lesson 3: Diffusers
Lesson 4: Regulating/Shutoff Valves
Lesson 5: Operation
Lesson 6: Maintenance
WEF Basic Maintenance of Mechanical Aeration Systems – Identifies the components of a mechanical aeration system: motor, gear reducer, base plate, bearing housing, impeller shaft, drive ring, adjusting rods, jacking screws, blade ring, blades, and draft tubes. Also discusses function and operation of surface and subsurface aeration and methods of steadying the shaft; PM, including inspection and lubrication procedures.
Lesson 1: Operation of Surface & Subsurface Aeration
Lesson 2: Preventive Maintenance
Lesson 3: Lubrication
Lesson 4: Lockout/Tagout Procedures
Lesson 5: General Safety
WEF Basic Maintenance of Circular Secondary Clarifiers – Describes the function of each of the typical components of a circular clarifier; gear reducer, sludge collector mechanism, and the scum removal mechanism. Describes normal preventive maintenance, including daily inspection, lubrication procedures, lockout/ tag out procedures and general safety considerations.
Lesson 1: Components of Circular Clarifiers
Lesson 2: Function of Gear Reducers
Lesson 3: Sludge Collector and Scum Removal Mechanisms
Lesson 4: Preventive Maintenance
WEF Basic Maintenance of Rectangular Clarifiers – Identifies the function and components of a rectangular clarifier. Describes the function of the gear reducer, sludge collector mechanism, and scum removal mechanism. Describes preventive maintenance, including daily inspection and lubrication procedures. Describes the purpose of lockout/ tag out procedures and identifies general safety considerations.
Lesson 1: Components of Rectangular Clarifiers
Lesson 2: Function of Gear Reducers
Lesson 3: Sludge Collector and Scum Removal Mechanisms
Lesson 4: Preventive Maintenance
Sacramento Manual – Water Treatment Vol. I & II Water Treatment Plant Operation – Serves as an overview of water treatment for maintenance personnel. Explains various treatment processes, components and water chemistry. Defines the basic modes of operation and their advantages and disadvantages. Explains the processes that make up solids handling and sludge removal and dewatering. Describes methods of disinfection.
Lesson 1: Coagulation & Flocculation,Chapter 4
Lesson 2: Sedimentation, Chapter 5
Lesson 3: Filtration, Chapter 6
Lesson 4: Disinfection, Chapter 7
Lesson 5: Taste & Odor Control, Chapter 9
Lesson 6: Iron & Manganese Control, Chapter12
Lesson 7: Fluoridation, Chapter 13
Lesson 8: Softening, Chapter 14
Lesson 9: Handling & Disposal of Wastes, Chapter17
Lesson 10: Maintenance, Chapter18
Lesson 11: Instrumentation, Chapter 19
Lesson 12: Safety, Chapter 20