A sanitation system contractor fabricates and installs cesspools, septic tanks, storm drains, and other sewage disposal and drain structures. This classification includes the laying of cast-iron, steel, concrete, vitreous and nonvitreous pipe and any other hardware associated with these systems.
Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)
Content of the Examination
The Sanitation System (C-42) Examination is divided into five major sections. These sections are:
1. Site Conditions (10%)
Sanitation system location
Sanitation system type
Soil conditions
2. System Design (13%)
Sizing of sanitation system
Plans and specifications
Sanitation system components
3. Installation (50%)
Excavation and trenching
Septic systems
Sewer systems
Storm drains
Pumps and monitoring systems
Drawings, permits, and inspection
4. Maintenance and Repair (11%)
Cleaning techniques
Inspection methods
Repair, replacement, and rehabilitation procedures
5. Safety (16%)
Job site safety
Personnel safety
*Percentages are approximate*
Sample Questions
The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.
1. What is the minimum distance a septic tank can be located from a structure?
5’
8’
10’
12’
2. In a gravity flow leach field system using perforated distribution piping, where are perforations located?
At the top of the pipe
At the sides of the pipe
At the bottom of the pipe
All around the pipe
3. How much slurry would be necessary to fill a 10’ deep, 6’ diameter cesspool?
10.46 cubic yards
11.82 cubic yards
31.40 cubic yards
41.86 cubic yards
*All questions are written and reviewed by licensed contractors who are actively working in the field*
Resources
California Plumbing Code.
International Association of Plumbing and Mechanical Officials
