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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |